CN209128222U - Viscose glue waste liquid environment-friendly processing unit based on circulating tank - Google Patents
Viscose glue waste liquid environment-friendly processing unit based on circulating tank Download PDFInfo
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- CN209128222U CN209128222U CN201821814683.4U CN201821814683U CN209128222U CN 209128222 U CN209128222 U CN 209128222U CN 201821814683 U CN201821814683 U CN 201821814683U CN 209128222 U CN209128222 U CN 209128222U
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- 229920000297 Rayon Polymers 0.000 title claims abstract description 68
- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 239000002699 waste material Substances 0.000 title claims abstract description 37
- 239000003292 glue Substances 0.000 title claims abstract description 35
- 238000012545 processing Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 51
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
- 238000012546 transfer Methods 0.000 claims abstract description 29
- 239000012535 impurity Substances 0.000 claims abstract description 24
- 229920002678 cellulose Polymers 0.000 claims abstract description 23
- 239000001913 cellulose Substances 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 14
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims description 66
- 150000003839 salts Chemical class 0.000 claims description 50
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 49
- 239000003513 alkali Substances 0.000 claims description 39
- 238000003860 storage Methods 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 34
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 28
- 235000011152 sodium sulphate Nutrition 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000010992 reflux Methods 0.000 claims description 23
- 239000000243 solution Substances 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 238000010612 desalination reaction Methods 0.000 claims description 16
- 238000001728 nano-filtration Methods 0.000 claims description 15
- 238000001223 reverse osmosis Methods 0.000 claims description 15
- 239000013522 chelant Substances 0.000 claims description 14
- 239000012267 brine Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 10
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000909 electrodialysis Methods 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 229920004933 Terylene® Polymers 0.000 claims 1
- 238000007380 fibre production Methods 0.000 claims 1
- 239000005020 polyethylene terephthalate Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 20
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 12
- 230000001112 coagulating effect Effects 0.000 description 11
- 239000012528 membrane Substances 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 3
- 239000006166 lysate Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 3
- 229940007718 zinc hydroxide Drugs 0.000 description 3
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 3
- 241000040710 Chela Species 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000010808 liquid waste Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- -1 sulphonic acid ester Chemical class 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000005446 dissolved organic matter Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the viscose glue waste liquid environment-friendly processing units based on circulating tank, belong to waste recovery and environmental protection treatment technical field in viscose rayon production.Including centrifuge, transfer tank, blend tank, impurity removal mechanism and Bipolar Membrane membrane stack, it further include circulating tank, circulating tank includes tank body, vertical clapboard, upper cross plate and lower cross plate, vertical clapboard side and inner tank wall form back cavity, the other side and inner tank wall form mixing chamber, channel is formed between vertical clapboard end and tank base inner wall, is formed channel between upper cross plate end and vertical clapboard, is formed channel between lower cross plate end and vertical clapboard.The utility model forms environment-friendly cycle processing unit, completes the recycling to sulfuric acid, sodium hydroxide, dilute sulfuric acid sodium solution；Meanwhile by the setting to circulating tank, the purity and concentration of sulfuric acid, sodium hydroxide, and the secondary pollution in non-treated process is effectively ensured, can direct reuse in cellulose viscose manufacturing technique, realize zero-emission.
Description
Technical field
The utility model relates to a kind of environment-friendly processing units, especially, are related at the viscose glue waste liquid environmental protection based on circulating tank
Device is managed, waste recovery and environmental protection treatment technical field in viscose rayon production are belonged to.
Background technique
Viscose rayon is using high molecular material wood pulp, cotton pulp containing native cellulose etc. by chemistry and mechanical means
The chemical fibre being process is kind closest with natural fiber clothes performance in chemical fibre, has soft, suction
It is penetrable ventilated, overhang elegant, bright, antistatic the features such as being relatively easy to textile process, be derived from day however better than it is natural again
Raw cellulose fibre, is one of the important materials of textile industry raw material.There is viscose rayon enterprise about 40 in China at present, except production
Outside common viscose fiber (long filament, staple fiber) and high-tenacity fibre, the viscose rayon of high wet modulus fiber and special property also has life
It produces.
A large amount of industrial chemicals is needed in production process of viscose fiber, can generate a large amount of waste water, these waste water contain sulphur
Acid, zinc sulfate, carbon disulfide, cellulose, dissolved organic matter etc. generate very big harm to environment, are textile industries
One of primary pollution source.
Wherein, in viscose rayon forming process, viscose glue and acid coagulating bath are acted on, and are neutralized alkali, cellulose sulfonic acid
Sodium is decomposed and regenerates cellulose hydrate, cellulose sulfonate, free NaOH during this in viscose glue and because of side reaction
The Na of generation2CS3, the side reaction products such as polysulfide can generate sodium sulphate with the sulfuric acid reaction in coagulating bath.Viscose rayon
Include the acid bath process of consumption sulfuric acid in production, further includes the sheet steeping process for consuming sodium hydroxide, alkali cellulose sulphonic acid ester
Dissolution process, concise compresses and washes process and sour water neutralisation treatment operation at waste gas absorption process.
The main function of sodium sulphate is that viscose glue liquid stream is promoted to solidify and inhibit sulfuric acid dissociation in coagulating bath, makes cellulose sulfonic acid
The reproduction speed of ester delays, and improves the concentration of sodium sulphate in coagulating bath, and spinning operation is easier to, and tow is not easy to break end, and can drop
The degree of dissociation of low-sulfur acid, makes tow still have certain residual ester value when leaving coagulating bath, but the sodium sulphate in coagulating bath
Also unsuitable excessively high, otherwise fibre solidification can be made to overrun, fine structure cannot be formed, and coarse crystalline particle is generated, fiber
Ectonexine is also inhomogenous.
During the spinning process, the sodium sulphate content in coagulating bath is continuously increased so that its requirement for being unable to satisfy technique, such as
Fruit only passes through the raw material being consumed in addition coagulating bath will make the total amount of coagulating bath increase to supplement its concentration recycling
Add and can not store, can only at regular time and quantity discharge coagulating bath, acid therein, salt, metal ion etc. will cause serious ring
Border pollution brings huge pressure to sewage treatment and causes the huge waste of resource.And by sodium sulphate extra in acid bath
High temperature crystallization is carried out, sodium sulfate crystal is isolated, so that the content of the sodium sulphate in acid bath is met technique requirement, without arranging daily
Fall acid to balance acid bath, by directly continuing to use for spinning workshop after charging, acid discharge can be reduced, output anhydrous sodium sulphate reduces ring
Packing pressure, but due to sodium sulphate high temperature crystallization is produced in coagulating bath anhydrous sodium sulphate it is impure it is more, added value itself is low makes
Economic benefit can not be generated by obtaining it, and a large amount of solid salt can not be handled, and still bring certain pressure to environmental protection.
State knows that office disclosed a kind of Publication No. CN101343124 on 01 14th, 2009, entitled " based on circulating tank
The patent document of viscose glue waste liquid environment-friendly processing unit ", open: equipment includes absorbing filling, collecting tank, neutralization pond, sedimentation basin.The hair
The bright governing problem for comprehensively considering salkali waste, exhaust gas and zinc-containing water in viscose rayon production, had not only reached the comprehensive utilization of resource, but also
Waste discharge is reduced, solves the environmental issue for restricting industry development in production process of viscose fiber for a long time.Though the technical solution
Environmental protection treatment so is carried out to viscose glue waste liquid, but waste is not separated, is purified, be concentrated etc. and handled, and be recycled,
It is unsatisfactory for cycling and reutilization requirement.
State knows that office discloses a kind of Publication No. CN206666261U, a kind of entitled " viscose glue on November 24th, 2017
The patent document of fine acid waste water processing unit ", open: multimedium filter, ultrafiltration membrane, nanofiltration membrane, level-one produce pond, pressurization
Pump, RO reverse osmosis membrane and recycling water storage tank；The outlet of multimedium filter and the inlet communication of ultrafiltration membrane；The outlet of ultrafiltration membrane with receive
The inlet communication of filter membrane；The outlet of nanofiltration membrane and level-one produce the inlet communication in pond；Level-one produces outlet and the booster pump in pond
Inlet communication；Outlet and the inlet communication of RO reverse osmosis membrane of booster pump, the outlet of RO reverse osmosis membrane and recycling water storage tank into
Mouth of a river connection.The utility model solves the neutralization precipitation pool device processing viscose fiber acid waste water used at this stage and brings
High cost burden, secondary pollution problems caused by the lime slag that is not available largely, and handle through the utility model useless
Water can recycle, good purification, high-efficient, reduce water resource waste, energy conservation and environmental protection.But the technical solution stresses pair
Viscose Waste Water carries out environmental protection treatment, and not specific, circulation and being recycled to Viscose Waste Water efficiently etc..
For the prior art, there is problems: existing viscose glue liquid waste treating apparatus can not be expanded to industry
Metaplasia produces, and is only limitted to the experimental stage；After viscose glue waste liquid is handled, there is also wastes discharge, is unfavorable for environmentally friendly production；To viscous
After glue waste liquid carries out sulfuric acid, sodium hydroxide, the recycling of dilute sulfuric acid sodium, purity and concentration are not able to satisfy actual demand, i.e. impurity is more, dense
Spend low, and energy consumption is high for the experimental facilities, influences greatly, therefore needs further on product quality after being back to cellulose viscose manufacturing technique
It could be used in production technology after processing.
Summary of the invention
The utility model aims to solve the problem that prior art problem, and proposes the viscose glue waste liquid environmental protection treatment dress based on circulating tank
It sets.The technical program has by the setting to centrifuge, transfer tank, blend tank, impurity removal mechanism, Bipolar Membrane membrane stack and circulating tank
Effect solves the problems such as difficult viscose glue liquid waste processing, data waste, completes the recycling to sulfuric acid, sodium hydroxide, dilute sulfuric acid sodium solution
It utilizes, meanwhile, realize zero-emission.
In order to achieve the above technical purposes, the following technical solution is proposed:
Viscose glue waste liquid environment-friendly processing unit based on circulating tank, including viscose glue waste liquid is separated into powdery solid and gelled acid
Solution by adjusting temperature and is adjusted pH and tune sodium sulphate by the centrifuge of bath foam, the transfer tank that powdery solid is dissolved as to solution
Concentration and have suspended matter generate blend tank, by impurity remove impurity removal mechanism and by sodium sulphate electrodialysis be sulfuric acid and hydroxide
The Bipolar Membrane membrane stack of sodium, transfer tank are arranged in centrifuge station side, and transfer tank is connect with blend tank, blend tank and impurity removal mechanism
Connection, impurity removal mechanism are connect with Bipolar Membrane membrane stack；
It further include the circulating tank of fluid circulation reflux, circulating tank is connect with Bipolar Membrane membrane stack；
Circulating tank includes that tank body and setting are vertically provided in the intracorporal vertical clapboard of tank, upper cross plate and lower cross plate, vertical clapboard
In tank body, and it is fixed on top of the tank and side, vertical clapboard side and inner tank wall form back cavity, the other side and inner tank wall
Mixing chamber is formed, forms channel between vertical clapboard end and tank base inner wall；Top of the tank be equipped with refluxing opening, refluxing opening with return
Chamber connection is flowed, back cavity top is equipped with overflow port, is equipped with upper cross plate below overflow port, is formed between upper cross plate end and vertical clapboard
Channel；Top of the tank is additionally provided with feed inlet, and feed inlet is connected to mixing chamber, and mixing chamber lower part is equipped with discharge port, discharge port lower section
Equipped with lower cross plate, channel is formed between lower cross plate end and vertical clapboard.
Preferably, the circulating tank includes salt circulating tank, sour circulating tank and alkali circulating tank, salt circulating tank feed inlet and removal of impurities
Mechanism connection, salt circulating tank discharge port are connect with Bipolar Membrane membrane stack import, Bipolar Membrane membrane stack salt outlet and salt circulating tank refluxing opening
Connection forms the access of an independent loops between salt circulating tank and Bipolar Membrane membrane stack, and salt circulating tank is also connected with storage brine tank；
Sour circulating tank refluxing opening is connect with Bipolar Membrane membrane stack acid mouth, and sour circulating tank discharge port and the import of Bipolar Membrane membrane stack connect
It connects, forms the access of an independent loops between sour circulating tank and Bipolar Membrane membrane stack, and sour circulating tank feed inlet is connected with demineralized water
Tank；
Alkali circulating tank refluxing opening is connect with Bipolar Membrane membrane stack alkali outlet, and alkali circulating tank discharge port and the import of Bipolar Membrane membrane stack connect
It connects, forms the access of an independent loops, and alkali circulating tank feed inlet and desalination water pot between alkali circulating tank and Bipolar Membrane membrane stack
Connection.
Preferably, the salt circulating tank overflow port is connected with storage brine tank, and sour circulating tank overflow port is connected with acid storage tank, alkali circulation
Tank overflow port is connected with storage alkali tank.
Alternatively, the salt circulating tank overflow port is connected with hydrochlorate separating mechanism, hydrochlorate separating mechanism acid mouth is straight by pipeline
It connects and is connect with the acid station acid storage tank in cellulose viscose manufacturing technique, carry out acid bath process, hydrochlorate separating mechanism salt outlet passes through pipe
Road is directly connect with transfer tank；The acid circulating tank overflow port is connected with reverse osmosis mechanism, and reverse osmosis mechanism concentrated acid outlet passes through pipe
Road is directly connect with the acid station acid storage tank in cellulose viscose manufacturing technique, carries out acid bath process, reverse osmosis mechanism penetrating fluid outlet
It is directly connect with sour circulating tank by pipeline；The alkali circulating tank overflow port is connected with nanofiltration mechanism, and nanofiltration mechanism filtrate (liquid is logical
Piping is directly connect with the stoste storage tank in cellulose viscose manufacturing technique, carries out dipping or yellow process, the concentration of nanofiltration mechanism
Liquid outlet is directly connect with blend tank by pipeline.
Preferably, the transfer tank is connect with desalination water pot.
Preferably, the blend tank is connected with the heat exchanger of temperature regulating, adjusts the base-conveying pipe of pH and adjusts the desalination of sodium sulfate concentration
Water pot.
Preferably, hydrochlorate separating mechanism is additionally provided between the transfer tank and blend tank, the import of hydrochlorate separating mechanism is in
Turn trough connection, the outlet of hydrochlorate separating mechanism is connect with blend tank, and hydrochlorate separating mechanism water inlet is connected with desalination water pot, hydrochlorate
Separating mechanism acid mouth is connect with the acid station acid storage tank in cellulose viscose manufacturing technique.
Preferably, the impurity removal mechanism include will contain suspended matter solution be filtered into filter residue I and coarse filtration liquid coarse filtration mechanism,
Coarse filtration liquid is filtered into the fine filter structure of filter residue II and refined filtration liquid and refined filtration liquid is chelated into the chela that absorption generates pure sodium sulphate
Resin tower, fine filter structure are arranged between coarse filtration mechanism and chelate resin tower, and coarse filtration mechanism and fine filter structure
Connection, fine filter structure are connect with chelate resin tower, and chelate resin tower is connect with feed inlet.
Preferably, the coarse filtration mechanism is the bag filter in 10~15 μm of aperture.
Preferably, the fine filter structure is the ultrafilter in 0.01~0.05 μm of aperture.
Related viscose glue waste liquid includes sodium sulphate, zinc sulfate and sulfuric acid.
Nanofiltration mechanism is existing mature technology, can directly be bought and be obtained by producer.
Hydrochlorate separating mechanism includes resin column, according to the absorption between the two of sulfuric acid and sodium sulphate, parsing rate it is different and
Separation, the device are existing mature technology, can directly be bought and be obtained by producer.(producer are as follows: Xi'an indigo plant knows scientific and technological new material stock
Part Co., Ltd)
Reverse osmosis membrane mechanism is existing mature technology, can directly be bought and be obtained by producer.
The working principle of environment-friendly processing unit are as follows:
Centrifuge: viscose glue waste liquid is centrifuged, and obtains powdery solid and concentrated acid bath foam, and concentrated acid bath foam can be returned directly
The spinning acid bath circulating process in viscose rayon production is used, powdery solid is passed into transfer tank；
Transfer tank: after powdery solid is passed into transfer tank, demineralized water, powdery are passed through into transfer tank through desalination water pot
Solid dissolution, obtains lysate；Lysate is passed into blend tank；
Blend tank: after lysate is passed into blend tank, temperature in blend tank is adjusted through heat exchanger, through storage alkali tank and is removed
Brine tank adjusts the pH and sodium sulfate concentration in blend tank, during this, has about 80% zinc ion to form precipitating, and sodium sulphate
Maximum dissolution；The bag filter into impurity removal mechanism will be passed through containing precipitating suspended matter solution after adjusting；
Bag filter: after being passed into containing precipitating suspended matter solution to bag filter, filtering removes bulky grain hydrogen
Zinc oxide precipitate obtains coarse filtration liquid, and coarse filtration liquid is passed through to ultrafilter；
Ultrafilter: coarse filtration liquid is passed into ultrafilter, and filtering removes smaller particle zinc hydroxide precipitation, obtains refined filtration liquid,
Refined filtration liquid is passed through to chelate resin tower；
Bulky grain zinc hydroxide precipitation and smaller particle zinc hydroxide precipitation are collected, is back to use in viscose rayon production
Acid bath process；
Chelate resin tower: after refined filtration liquid is passed into chelate resin tower, being adsorbed and removed remaining zinc ion by chelating,
Pure metabisulfite solution is obtained, which is passed through to salt circulating tank；
Circulating tank: metabisulfite solution is passed into salt circulating tank, and metabisulfite solution is passed into from salt circulating tank discharge port
To Bipolar Membrane membrane stack；Selective permeability of ionexchange membrane through Bipolar Membrane membrane stack obtains dilute salt, sulfuric acid and sodium hydroxide, dilute salt
It is passed into from Bipolar Membrane membrane stack salt outlet to storage brine tank, storage is spare；Sulfuric acid from Bipolar Membrane membrane stack acid mouth be passed into
In acid storage tank, storage is spare；Sodium hydroxide is passed into from Bipolar Membrane membrane stack alkali outlet to storage alkali tank, and storage is spare；
Alternatively, dilute salt is back in salt circulating tank from Bipolar Membrane membrane stack salt outlet, due to vertical clapboard, upper cross in salt circulating tank
The setting of plate and lower cross plate, dilute salt flow back and mix in salt circulating tank, and dilute salt a part is again introduced into Bipolar Membrane membrane stack, again
Recycled, another part enters to hydrochlorate separating mechanism by overflow port, due in dilute salt for overflowing containing sulfuric acid and
Sodium sulphate, and after the separation of persalt separating mechanism, sulfuric acid is directly passed into the acid bath process into viscose rayon production, sulfuric acid
Sodium solution is directly passed into transfer tank；
Sulfuric acid is back in sour circulating tank from Bipolar Membrane membrane stack acid mouth, due to vertical clapboard in sour circulating tank, upper cross plate and
The setting of lower cross plate, sulfuric acid flow back and mix in sour circulating tank, and sulfuric acid a part is again introduced into Bipolar Membrane membrane stack, carries out again
Circulation, another part enter to reverse osmosis mechanism by overflow port, the sulfuric acid overflowed are concentrated, the sulfuric acid after concentration
The acid bath process being directly passed into viscose rayon production, and penetrating fluid is directly back in sour circulating tank by pipeline,
Carry out moisturizing；
Sodium hydroxide is back in alkali circulating tank from Bipolar Membrane membrane stack alkali outlet, due to vertical clapboard, upper cross in alkali circulating tank
The setting of plate and lower cross plate, sodium hydroxide flow back and mix in alkali circulating tank, and sodium hydroxide a part is again introduced into Bipolar Membrane
Membrane stack is recycled again, and another part enters to nanofiltration mechanism by overflow port, due to the sodium hydroxide solution overflowed
In containing a small amount of sodium sulphate, and after nanofiltration, sodium hydroxide is directly passed into dipping or yellow work into viscose rayon production
Sequence, concentrate (sulfur acid sodium and sodium hydroxide) are directly passed into blend tank, i.e., to the pH and sodium sulfate concentration in blend tank
It is adjusted.
Using the technical program, bring advantageous effects are as follows:
The utility model is formed by the setting to centrifuge, transfer tank, blend tank, impurity removal mechanism and Bipolar Membrane membrane stack
Environment-friendly cycle processing unit completes the recycling to sulfuric acid, sodium hydroxide, dilute sulfuric acid sodium solution；Meanwhile by circulating tank
Setting, the purity and concentration of sulfuric acid, sodium hydroxide, and the secondary pollution in non-treated process is effectively ensured, can direct reuse
In cellulose viscose manufacturing technique or storage, zero-emission is realized；
In the present invention, recycle tank in vertical clapboard, upper cross plate, lower cross plate, back cavity, mixing chamber, channel,
The setting of refluxing opening, overflow port, feed inlet and discharge port, and limit its position and connection relationship, avoid reflux and newly add
Enter or newly-generated object mixes immediately, and by separation and guide functions, avoid reflux from recycling with new addition or newly-generated object
Tank top mixing promotes partial reflux object to mix completely with new addition or newly-generated object in circulation pot bottom, reduces material back-mixing
Cost improves operational efficiency；Meanwhile the concentration of discharge port is improved, and then improve Bipolar Membrane membrane stack " amberplex selection transmission
Property " efficiency；
The utility model is suitable for industrialized production, can not only be directly arranged in cellulose viscose manufacturing technique, to viscous
Glue waste liquid is recycled, and realizes zero-emission, and by product reuse to cellulose viscose manufacturing technique, saves production cost, and
Improve the globality of equipment installation；And the present apparatus can also be separately provided, and be exclusively used in the processing of viscose glue waste liquid, improve integration of equipments
Degree.
Detailed description of the invention
Fig. 1 is the structural block diagram (one) of the utility model；
Fig. 2 is the work flow diagram (one) of the utility model；
Fig. 3 is the structural block diagram (two) of the utility model；
Fig. 4 is the work flow diagram (two) of the utility model；
Fig. 5 is the structural schematic diagram of circulating tank in the utility model；
Fig. 6 is the top view of circulating tank in the utility model；
Fig. 7 is salt circulating tank in the utility model, sour circulating tank, alkali circulating tank and the signal of Bipolar Membrane membrane stack logical connection
Figure；
Wherein, in figure: 1, centrifuge, 2, transfer tank, 3, blend tank, 4, impurity removal mechanism, 401, coarse filtration mechanism, 402, essence
Filter mechanism, 403, chelate resin tower, 5, Bipolar Membrane membrane stack, 6, circulating tank, 601, tank body, 602, vertical clapboard, 603, upper cross plate,
604, lower cross plate, 605, back cavity, 606, mixing chamber, 607, refluxing opening, 608, overflow port, 609, feed inlet, 610, discharge port,
7, salt circulating tank, 8, sour circulating tank, 9, alkali circulating tank, 10, storage brine tank, 11, acid storage tank, 12, storage alkali tank, 13, hydrochlorate separation
Mechanism, 14, reverse osmosis mechanism, 15, nanofiltration mechanism, 16, desalination water pot, 17, heat exchanger.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Example is applied, all other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
Embodiment 1
Viscose glue waste liquid environment-friendly processing unit based on circulating tank, including viscose glue waste liquid is separated into powdery solid and gelled acid
Solution by adjusting temperature and is adjusted pH and tune sulfuric acid by the centrifuge 1 of bath foam, the transfer tank 2 that powdery solid is dissolved as to solution
Na concn and have suspended matter generate blend tank 3, by impurity remove impurity removal mechanism 4 and by sodium sulphate electrodialysis be sulfuric acid and hydrogen
The Bipolar Membrane membrane stack 5 of sodium oxide molybdena, transfer tank 2 are arranged in 1 station side of centrifuge, and transfer tank 2 is connect with blend tank 3, blend tank 3
It is connect with impurity removal mechanism 4, impurity removal mechanism 4 is connect with Bipolar Membrane membrane stack 5；It further include the circulating tank 6 of fluid circulation reflux, circulating tank
6 connect with Bipolar Membrane membrane stack 5；
As seen in figs. 5-6: circulating tank 6 includes tank body 601 and the vertical clapboard 602, the upper cross plate 603 that are arranged in tank body 601
With lower cross plate 604, vertical clapboard 602 is vertically provided in tank body 601, and is fixed on 601 top of tank body and side, vertical clapboard 602
Side and 601 inner wall of tank body form back cavity 605, and the other side and 601 inner wall of tank body form mixing chamber 606,602 end of vertical clapboard
Channel is formed between 601 bottom interior wall of tank body；Refluxing opening 607 is equipped at the top of tank body 601, refluxing opening 607 and back cavity 605 connect
Logical, 605 top of back cavity is equipped with overflow port 608, is equipped with upper cross plate 603 below overflow port 608,603 end of upper cross plate and it is perpendicular every
Channel is formed between plate 602；Feed inlet 609 is additionally provided at the top of tank body 601, feed inlet 609 is connected to mixing chamber 606, mixing chamber
606 lower parts are equipped with discharge port 610, lower cross plate 604 are equipped with below discharge port 610, between 604 end of lower cross plate and vertical clapboard 602
Form channel.
Embodiment 2
On the basis of embodiment 1, further,
As shown in Figure 7: the circulating tank 6 includes that salt circulating tank 7, sour circulating tank 8 and alkali circulating tank 9, salt circulating tank 7 are fed
Mouth is connect with impurity removal mechanism 4, and 7 discharge port of salt circulating tank is connect with 5 import of Bipolar Membrane membrane stack, 5 salt outlet of Bipolar Membrane membrane stack and salt
The connection of 7 refluxing opening of circulating tank forms the access of an independent loops, and salt circulating tank between salt circulating tank 7 and Bipolar Membrane membrane stack 5
7 are also connected with storage brine tank 10；
Sour 8 refluxing opening of circulating tank is connect with 5 acid mouth of Bipolar Membrane membrane stack, sour 8 discharge port of circulating tank and Bipolar Membrane membrane stack 5 into
Mouth connection forms the access of an independent loops between sour circulating tank 8 and Bipolar Membrane membrane stack 5, and sour 8 feed inlet of circulating tank is connected with
Desalination water pot 16；
9 refluxing opening of alkali circulating tank is connect with 5 alkali outlet of Bipolar Membrane membrane stack, 9 discharge port of alkali circulating tank and Bipolar Membrane membrane stack 5 into
Mouthful connection, between alkali circulating tank 9 and Bipolar Membrane membrane stack 5 formed an independent loops access, and 9 feed inlet of alkali circulating tank with remove
Brine tank 16 connects.
The impurity removal mechanism 4 includes that will contain suspended matter solution to be filtered into the coarse filtration mechanism 401 of filter residue I and coarse filtration liquid, incite somebody to action
Coarse filtration liquid is filtered into the fine filter structure 402 of filter residue II and refined filtration liquid and refined filtration liquid is chelated the chela that absorption generates pure sodium sulphate
Resin tower 403, fine filter structure 402 is arranged between coarse filtration mechanism 401 and chelate resin tower 403, and coarse filtration mechanism
401 connect with fine filter structure 402, and fine filter structure 402 is connect with chelate resin tower 403, and chelate resin tower 403 and salt recycle
The connection of 7 feed inlet 609 of tank.
Embodiment 3
On the basis of embodiment 2, further,
The coarse filtration mechanism 401 is the bag filter in 10 μm of aperture, and the fine filter structure 402 is 0.01 μm of aperture
Ultrafilter.
Embodiment 4
On the basis of embodiment 3, the present embodiment difference is:
The coarse filtration mechanism 401 is the bag filter in 15 μm of aperture, and the fine filter structure 402 is 0.05 μm of aperture
Ultrafilter.
Embodiment 5
On the basis of embodiment 3-4, the present embodiment difference is:
The coarse filtration mechanism 401 is the bag filter in 135 μm of aperture, and the fine filter structure 402 is 0.02 μ of aperture
The ultrafilter of m.
Embodiment 6
On the basis of embodiment 2-5, further,
As shown in Figs. 1-2: 7 overflow port of salt circulating tank is connected with storage brine tank 10, and sour 8 overflow port of circulating tank is connected with storage acid
Tank 11,9 overflow port of alkali circulating tank are connected with storage alkali tank 12.
Embodiment 7
On the basis of embodiment 6, the present embodiment difference is:
As shown in Figure 3-4: 7 overflow port of salt circulating tank is connected with hydrochlorate separating mechanism 13, and hydrochlorate separating mechanism 13 goes out acid
Mouth is directly connect with the acid station acid storage tank in cellulose viscose manufacturing technique by pipeline, carries out acid bath process, hydrochlorate separating mechanism
13 salt outlets are directly connect with transfer tank 2 by pipeline；Acid 8 overflow port of circulating tank is connected with reverse osmosis mechanism 14, reverse osmosis
The outlet of 14 concentrated acid of mechanism is directly connect with the acid station acid storage tank in cellulose viscose manufacturing technique by pipeline, carries out acid bath process,
Reverse osmosis 14 penetrating fluid of mechanism outlet is directly connect with sour circulating tank feed inlet or desalination water pot 16 by pipeline；The alkali circulation
9 overflow port of tank is connected with nanofiltration mechanism 15, and 15 filtrate (liquid of nanofiltration mechanism is by pipeline directly and in cellulose viscose manufacturing technique
The connection of stoste storage tank, carries out dipping or yellow process, and 15 concentrated solution outlet of nanofiltration mechanism is directly connected with blend tank 3 by pipeline
It connects.
Embodiment 8
On the basis of embodiment 1-7, further,
The transfer tank 2 is connect with desalination water pot 16.
The blend tank 3 is connected with the heat exchanger 17 of temperature regulating, adjusts the base-conveying pipe of pH and adjusts the desalination water pot of sodium sulfate concentration
16。
Hydrochlorate separating mechanism 13,13 import of hydrochlorate separating mechanism and transfer are additionally provided between the transfer tank 2 and blend tank 3
Slot 2 connects, and the outlet of hydrochlorate separating mechanism 13 is connect with blend tank 3, and 13 water inlet of hydrochlorate separating mechanism is connected with desalination water pot
16,13 acid mouth of hydrochlorate separating mechanism is connect with the acid station acid storage tank in cellulose viscose manufacturing technique.
Claims (10)
1. the viscose glue waste liquid environment-friendly processing unit based on circulating tank, it is characterised in that: consolidate including viscose glue waste liquid is separated into powdery
Solution is passed through adjusting temperature by the centrifuge (1) of body and gelled acid bath foam, the transfer tank (2) that powdery solid is dissolved as to solution
With adjust pH and adjust sodium sulfate concentration and the blend tank (3) for thering is suspended matter to generate, impurity removal mechanism (4) that impurity is removed and by sulfuric acid
Sodium electrodialysis is the Bipolar Membrane membrane stack (5) of sulfuric acid and sodium hydroxide, and transfer tank (2) is arranged in centrifuge (1) station side, transfer
Slot (2) is connect with blend tank (3), and blend tank (3) is connect with impurity removal mechanism (4), and impurity removal mechanism (4) and Bipolar Membrane membrane stack (5) are even
It connects；
It further include the circulating tank (6) of fluid circulation reflux, circulating tank (6) is connect with Bipolar Membrane membrane stack (5)；
Circulating tank (6) includes vertical clapboard (602), upper cross plate (603) and the lower cross of tank body (601) and setting in tank body (601)
Plate (604), vertical clapboard (602) are vertically provided in tank body (601), and are fixed on tank body (601) top and side, vertical clapboard
(602) side and tank body (601) inner wall form back cavity (605), and the other side and tank body (601) inner wall form mixing chamber (606),
Channel is formed between vertical clapboard (602) end and tank body (601) bottom interior wall；Refluxing opening (607) are equipped at the top of tank body (601),
Refluxing opening (607) is connected to back cavity (605), and back cavity (605) top is equipped with overflow port (608), is set below overflow port (608)
Have upper cross plate (603), forms channel between upper cross plate (603) end and vertical clapboard (602)；Be additionally provided at the top of tank body (601) into
Material mouth (609), feed inlet (609) are connected to mixing chamber (606), and mixing chamber (606) lower part is equipped with discharge port (610), discharge port
(610) lower section is equipped with lower cross plate (604), forms channel between lower cross plate (604) end and vertical clapboard (602).
2. the viscose glue waste liquid environment-friendly processing unit according to claim 1 based on circulating tank, it is characterised in that: the circulation
Tank (6) includes salt circulating tank (7), sour circulating tank (8) and alkali circulating tank (9), salt circulating tank (7) feed inlet and impurity removal mechanism (4)
Connection, salt circulating tank (7) discharge port are connect with Bipolar Membrane membrane stack (5) import, Bipolar Membrane membrane stack (5) salt outlet and salt circulating tank
(7) refluxing opening connects, and the access of an independent loops, and salt circulating tank are formed between salt circulating tank (7) and Bipolar Membrane membrane stack (5)
(7) also it is connected with storage brine tank (10)；
Sour circulating tank (8) refluxing opening is connect with Bipolar Membrane membrane stack (5) acid mouth, sour circulating tank (8) discharge port and Bipolar Membrane membrane stack
(5) import connects, and the access of an independent loops, and sour circulating tank are formed between sour circulating tank (8) and Bipolar Membrane membrane stack (5)
(8) feed inlet is connected with desalination water pot (16)；
Alkali circulating tank (9) refluxing opening is connect with Bipolar Membrane membrane stack (5) alkali outlet, alkali circulating tank (9) discharge port and Bipolar Membrane membrane stack
(5) import connects, and the access of an independent loops, and alkali circulating tank are formed between alkali circulating tank (9) and Bipolar Membrane membrane stack (5)
(9) feed inlet is connect with desalination water pot (16).
3. the viscose glue waste liquid environment-friendly processing unit according to claim 2 based on circulating tank, it is characterised in that: the salt follows
Ring tank (7) overflow port is connected with storage brine tank (10), and sour circulating tank (8) overflow port is connected with acid storage tank (11), alkali circulating tank (9) overflow
Mouth is connected with storage alkali tank (12).
4. the viscose glue waste liquid environment-friendly processing unit according to claim 2 based on circulating tank, it is characterised in that: the salt follows
Ring tank (7) overflow port is connected with hydrochlorate separating mechanism (13), and hydrochlorate separating mechanism (13) acid mouth is directly fine with viscose glue by pipeline
Acid station acid storage tank connection in terylene short fiber production technology, hydrochlorate separating mechanism (13) salt outlet are directly connected with transfer tank (2) by pipeline
It connects；
Described acid circulating tank (8) overflow port is connected with reverse osmosis mechanism (14), and reverse osmosis mechanism (14) concentrated acid outlet is straight by pipeline
Connect and connect with the acid station acid storage tank in cellulose viscose manufacturing technique, the outlet of reverse osmosis mechanism (14) penetrating fluid pass through pipeline directly with
Sour circulating tank (8) connection；
Alkali circulating tank (9) overflow port is connected with nanofiltration mechanism (15), nanofiltration mechanism (15) filtrate (liquid by pipeline directly with
Stoste storage tank connection in cellulose viscose manufacturing technique, nanofiltration mechanism (15) concentrated solution outlet by pipeline directly and blend tank
(3) it connects.
5. the viscose glue waste liquid environment-friendly processing unit according to claim 1 based on circulating tank, it is characterised in that: the transfer
Slot (2) is connect with desalination water pot (16).
6. the viscose glue waste liquid environment-friendly processing unit according to claim 1 based on circulating tank, it is characterised in that: the allotment
Tank (3) is connected with the heat exchanger (17) of temperature regulating, adjusts the base-conveying pipe of pH and adjusts the desalination water pot (16) of sodium sulfate concentration.
7. the viscose glue waste liquid environment-friendly processing unit according to claim 1 based on circulating tank, it is characterised in that: the transfer
It is additionally provided between slot (2) and blend tank (3) hydrochlorate separating mechanism (13), (13) import of hydrochlorate separating mechanism and transfer tank (2) are even
It connects, hydrochlorate separating mechanism (13) outlet is connect with blend tank (3), and hydrochlorate separating mechanism (13) water inlet is connected with desalination water pot
(16), hydrochlorate separating mechanism (13) acid mouth is connect with the acid station acid storage tank in cellulose viscose manufacturing technique.
8. the viscose glue waste liquid environment-friendly processing unit according to claim 2 based on circulating tank, it is characterised in that: the removal of impurities
Mechanism (4) includes that will contain suspended matter solution be filtered into the coarse filtration mechanism (401) of filter residue I and coarse filtration liquid, be filtered into coarse filtration liquid
The fine filter structure (402) of filter residue II and refined filtration liquid and refined filtration liquid is chelated into the chelate resin tower that absorption generates pure sodium sulphate
(403), fine filter structure (402) is arranged between coarse filtration mechanism (401) and chelate resin tower (403), and coarse filtration mechanism
(401) it is connect with fine filter structure (402), fine filter structure (402) is connect with chelate resin tower (403), chelate resin tower
(403) it is connect with the feed inlet of salt circulating tank (7).
9. the viscose glue waste liquid environment-friendly processing unit according to claim 8 based on circulating tank, it is characterised in that: the thick mistake
Filter structure (401) is the bag filter in 10~15 μm of aperture.
10. the viscose glue waste liquid environment-friendly processing unit according to claim 8 based on circulating tank (6), it is characterised in that: described
Fine filter structure (402) is the ultrafilter in 0.01~0.05 μm of aperture.
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| CN201821814683.4U CN209128222U (en) | 2018-11-06 | 2018-11-06 | Viscose glue waste liquid environment-friendly processing unit based on circulating tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112473288A (en) * | 2020-11-25 | 2021-03-12 | 赛得利(九江)纤维有限公司 | Acid bath washing dust removal device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112473288A (en) * | 2020-11-25 | 2021-03-12 | 赛得利(九江)纤维有限公司 | Acid bath washing dust removal device and method |
| CN112473288B (en) * | 2020-11-25 | 2022-04-15 | 赛得利(九江)纤维有限公司 | Acid bath washing dust removal device and method |
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Denomination of utility model: Environmentally friendly treatment device for adhesive waste liquid based on circulation tank Granted publication date: 20190719 Pledgee: Yibin Development Holding Group Co.,Ltd. Pledgor: YIBIN GRACE GROUP Co.,Ltd.|YIBIN GRACE Co.,Ltd.|YIBIN HIEST FIBRE Ltd.,Corp. Registration number: Y2024980030046 |