CN108941153A - Contain intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology - Google Patents
Contain intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology Download PDFInfo
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- CN108941153A CN108941153A CN201810609786.5A CN201810609786A CN108941153A CN 108941153 A CN108941153 A CN 108941153A CN 201810609786 A CN201810609786 A CN 201810609786A CN 108941153 A CN108941153 A CN 108941153A
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- 238000009284 supercritical water oxidation Methods 0.000 title claims abstract description 43
- 238000000926 separation method Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 239000002699 waste material Substances 0.000 title claims abstract description 16
- 239000002910 solid waste Substances 0.000 claims abstract description 70
- 239000012071 phase Substances 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000007800 oxidant agent Substances 0.000 claims abstract description 18
- 230000001590 oxidative effect Effects 0.000 claims abstract description 18
- 239000007791 liquid phase Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006004 Quartz sand Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000007781 pre-processing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 230000008676 import Effects 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 29
- 239000010802 sludge Substances 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 25
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 14
- 239000007790 solid phase Substances 0.000 claims description 14
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005191 phase separation Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 5
- 230000033558 biomineral tissue development Effects 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract description 4
- 238000004382 potting Methods 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 11
- 239000012265 solid product Substances 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000012263 liquid product Substances 0.000 description 3
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- -1 small molecule compounds Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of to contain intrinsic machine treatment of wastes produced and separation system, including preprocessing module containing solid waste, warm-up block containing solid waste, oxidant supplying module, supercritical water oxidation module, subsequent products decrease temperature and pressure module, the online separation module of subsequent products based on supercritical Water Oxidation Technology.Multiple stage crushing, screening, grinding are carried out to containing solid waste by devices such as screw conveyor, crusher, vibrating screen, iron remover, grinding pumps, it is made to meet supercritical water oxidation feed needs.Deposition salt issuable in system is ground by adding quartz sand simultaneously, the equipment such as heat exchanger, reactor is avoided and mineralization and blockage problem occurs.For the gas-liquid-solid three-phase product after reaction, the two-stage separating measure combined using three phase separator with liquid-solid two-phase separator, liquid phase after liquid-solid separator separation simultaneously carries out multi-cycle separation, improve liquid-solid separation efficiency, solid residue can be used for brickmaking, potting grain and sell outside after simultaneous reactions, improve system economy.
Description
Technical field
The invention belongs to supercritical Water Oxidation Technologies to handle field containing solid waste, be related to a kind of based on supercritical water oxidation skill
Art contains intrinsic machine treatment of wastes produced and separation system.
Background technique
In recent years, with the sustainable development of China's industry, discharge amount containing solid waste increases year by year, mainly includes solid-state, half
Solid-state castoff matter, such as clinker, sludge, discarded product, for containing solid debirs, high organic content, organic matter
Type is more, and COD concentration is big, while having the toxicants such as heavy metal, it is also possible to contain explosive, radioactivity and corrosivity etc.,
There is serious harm to the mankind and environment.Currently used containing intrinsic machine waste treatment method is mostly incineration method, incineration method tool
There is certain treatment effect, but carry out processing when containing solid waste using incineration method, supervirulent dioxin can be generated, while can also
Generate the secondary pollutions such as oxysulfide, nitrogen oxides and flying dust；In addition, auxiliary fuel need to be added when using incineration method to maintain
Burning, reduces system economy, and processing cost is high.
Supercritical water oxidation (Supercritical Water Oxidation, SCWO) technology is in processing containing solid organic waste
There is significant advantage when object.Supercritical Water Oxidation Technology utilizes the nonpolar molecules energy such as oxygen, organic matter under super critical condition
The characteristic being dissolved completely in supercritical water is reacted, instead at supercritical conditions using oxygen as oxidant with organic matter
Amount of heat should be released in the process, when organic concentration reaches about 3wt.%, reaction system can utilize the heat of itself release
Amount, from without adding auxiliary fuel from the external world, reduces system operation cost to maintain to react.Meanwhile supercritical water oxidation
Technology has reaction rate fast, and the high advantage of organic matter efficiency, toxic organic compound can will be degraded within the extremely short reaction time
CO2、N2、H2The small molecule compounds such as O, and the secondary dirt such as dioxin, oxysulfide, nitrogen oxides will not be generated in reaction process
Substance is contaminated, treatment process free from extraneous odour is not necessarily to subsequent gases device.Containing solid waste after supercritical Water Oxidation Technology is handled, a huge sum of money
Belonging to can stablize in solid phase residue, while being also able to achieve the volume reduction minimizing containing solid waste up to stabilizing.
But it when using supercritical Water Oxidation Technology processing containing solid debirs, there is also some problems:
(1) it is mostly the waste materials such as solid-state, semisolid containing solid waste, itself does not have mobility, it is difficult to directly using pump
Equal power device is transported, need to be to containing solid waste when carrying out the processing containing solid waste using supercritical water oxidation continous way device
Object is suitably pre-processed.
(2) if containing, containing hard foreign matter of bulk etc., being when entering continuous supercritical water oxidation containing solid waste in solid waste
When in system, equipment can be damaged, so that system operation directly goes wrong, seriously affects the safety and reliability of system.
(2) due to the special nature containing solid waste itself, such as contain insoluble inert solid, in overcritical water oxygen
When being transported in change system, the deposition blocking of inert solid easily occurs.Simultaneously as the special nature of supercritical water, right
The dissolubility of inorganic salts is minimum, when higher containing salt content in solid waste, under the action of supercritical water, and inorganic salts crystallization analysis
Out, the deposition and blocking that salt can finally occur in a device, influence the safe operation of system, while reducing reactant degradation effect
Rate.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of based on supercritical Water Oxidation Technology
It is pre- when can effectively solve containing solid waste using supercritical Water Oxidation Technology processing containing intrinsic machine treatment of wastes produced and separation system
Solid product efficiently separating and providing after the completion of the problems such as mineralization occurred in processing problem, reaction process and blocking and processing
The problems such as sourceization utilizes.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
Contain intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology, including is pre-processed containing solid waste
Module, warm-up block containing solid waste, oxidant supplying module, supercritical water oxidation module, subsequent products decrease temperature and pressure module and
The online separation module of subsequent products；Enter after being pre-processed containing the sludge containing solid waste by preprocessing module containing solid waste
Warm-up block containing solid waste, the sludge after preheating enter the oxygen come in supercritical water oxidation module with the conveying of oxidant supplying module
Agent carries out hybrid reaction；Product after reaction enters subsequent products after the cooling of subsequent products decrease temperature and pressure module and separates online
Module carries out three phase separation.
A further improvement of the present invention lies in that:
Preprocessing module containing solid waste includes material bin containing solid waste, water softener tank and quartz sand feed bin；Material containing solid waste
The outlet in storehouse is connected by the first screw conveyor with crusher；Water softener tank passes through softening water pump and the phase of blend tank containing solid waste
Even；The outlet of the blend tank containing solid waste is sequentially connected vibrating screen, screw pump, iron remover, grinding pump and surge tank containing solid waste；
The foreign matter outlet of vibrating screen is connected with slag ladle；The second screw conveyor that quartz sand feed bin passes through and the phase of surge tank containing solid waste
Even.
Warm-up block containing solid waste includes product pump and heat exchanger, and material is transported to heat exchange through product pump after the completion of pretreatment
Device inner tube import, is preheated in heat exchanger, and heat exchanger outer tube hot fluid derives from the high temperature after supercritical water oxidation
Fluid, fresh material enter supercritical water oxidation module after the completion of inner tube of heat exchanger preheats, via inner tube of heat exchanger outlet
Material inlet.
Supercritical water oxidation module be overcritical water oxidization reactor, the material inlet of overcritical water oxidization reactor with change
Hot device inner tube outlet is connected, and oxidant inlet is connected with oxidant supplying module, exports the outer tube hot-fluid of hot fluid and heat exchanger
Body import is connected, and the hot fluid after heat exchange enters subsequent products decrease temperature and pressure module through the outlet of heat exchanger outer tube.
Oxidant supplying module includes liquid oxygen vessel, the outlet of liquid oxygen vessel be sequentially connected liquid oxygen pump, liquid oxygen gasifier with
And oxygen surge tank, the outlet of oxygen surge tank are connected with the oxidant inlet of overcritical water oxidization reactor.
Subsequent products decrease temperature and pressure module includes steam generator, chilled water tank；The outlet of heat exchanger outer tube enters steam and sends out
Hot fluid inlet is connected in raw device；Chilled water tank is connected by cooling water pump with steam generator；Steam generator passes through decompression
Valve is connected with the online separation module of subsequent products.
It includes at three phase separator, following liquid-phase processing unit and subsequent solid phase that the online separation module of subsequent products, which is connected,
Manage device；The outlet of pressure reducing valve is connected with three phase separator, the gas phase direct emission up to standard after three phase separator separates, liquid phase
Into following liquid-phase processing unit, solid-phase outlet is sequentially connected solid product feed bin, third screw conveyor and centrifuge, warp
Centrifuge centrifugation after liquid-phase outlet be sequentially connected feed back tank and feed back pump, feed back pump outlet and three phase separator returning charge into
Mouth is connected；The dry solid residue of centrifuge enters in subsequent solid phase processing unit the recycling for carrying out solid residue.
Compared with prior art, the invention has the following advantages:
The present invention contains solid waste using supercritical Water Oxidation Technology harmless treatment, pre-processes, adopts to containing solid waste
It takes multistage break up, be crushed, except the mode of foreign matter, makes thoroughly to be crushed, break up containing solid waste, while suitably being adjusted to containing solid waste
Match, circumferential and radial stirring is carried out to containing solid waste using frame and impeller-type stirrer, it is subsequent defeated that system can be met
Fortune and treatment conditions, improve the continuous water conveyance and distribution capacity of system.
Further, the present invention adds quartz sand before the easy heat exchanger that deposition blocking occurs, using quartz sand it is hard,
Wear-resisting characteristic will be that may be present heavy in heat exchanger and reactor in the case where material flow is greater than critical sedimentation flow velocity
The solid particles such as salification are taken away, and avoid solids particles precipitate and blocking etc. that the equipment such as heat exchanger, reactor may occur and ask
Topic.
Further, reactor used in the present invention is internal screw thread tubular reactor, compared to traditional tubular reactor,
Riffled tube on the one hand can fluid turbulence intensity in enhancing reactor, enhanced heat exchange while enhances again containing solid waste
Degradation efficiency, while the disturbance of fluid can be avoided the mineralization in reactor, improve system safety and unfailing performance.
Further, the present invention is improved on the basis of carrying out gas-liquid-solid separation using three phase separator, is taken
The combination of gas-liquid-solid three-phase separation and two fractionation technique of solid-liquor separation, while the liquid product after solid-liquor separation is followed
Ring greatly increases separative efficiency so that the solid product moisture content isolated is lower.
Further, supercritical water oxidation processing system containing solid waste not only realizes the reasonable utilization of heat, reacts
The waste heat generated in journey is also used to generate steam, and institute's producing steam is for industry or sells outside；Meanwhile it is innoxious after reaction
Solid-phase component realizes online separation, is mainly used for brickmaking, potting grain or sells outside.Reasonable utilize in two stock sources greatly reduces
System follows operating cost, improves system economy.
Detailed description of the invention
Fig. 1 is reaction system schematic diagram of the invention.
Wherein: 1- material bin containing solid waste；The first screw conveyor of 2-；3- crusher；4- blend tank containing solid waste；5- softening
Water pot；6- softens water pump；7- blender；8- vibrating screen；9- stores up slag chute；10- screw pump；11- iron remover；12- grinding pump；13-
Surge tank containing solid waste；14- product pump；15- heat exchanger；16- overcritical water oxidization reactor；17- liquid oxygen vessel；18- liquid oxygen
Pump；19- liquid oxygen gasifier；20- oxygen surge tank；21- steam generator；22- chilled water tank；23- cooling water pump；24- decompression
Valve；25- three phase separator；26- solid product feed bin；27- third screw conveyor；28- following liquid-phase processing unit；29- from
Scheming；30- feed back tank；31- feed back pump；The subsequent solid phase processing unit of 32-；33- quartz sand feed bin；The second screw conveyor of 34-.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, the present invention is based on supercritical Water Oxidation Technologies containing intrinsic machine treatment of wastes produced and separation system, including
Preprocessing module containing solid waste, warm-up block containing solid waste, oxidant supplying module, supercritical water oxidation module, subsequent products
The online separation module of decrease temperature and pressure module, subsequent products.
Within the system, the connection type of each equipment is as follows:
The outlet of material bin containing solid waste 1 is connected with 2 import of the first screw conveyor, and the first screw conveyor 2 is exported and is crushed
3 import of machine is connected, and the outlet of crusher 3 is connected with 4 material inlet of blend tank containing solid waste, the outlet of water softener tank 5 and softening water pump 6
Import is connected, and the outlet of softening water pump 6 softens water inlet with blend tank containing solid waste 4 and is connected, the outlet of blend tank containing solid waste 4 and vibration
8 imports of dynamic sieve are connected, and the outlet of vibrating screen 8 is connected with 10 import of screw pump, and the outlet of screw pump 10 is connected with 11 import of iron remover, remove
The outlet of ironware 11 is connected with 12 import of grinding pump, and the outlet of grinding pump 12 is connected with the outlet of surge tank containing solid waste 13, quartz sand material
The outlet of storehouse 33 is connected with 34 import of the second screw conveyor, the outlet of the second screw conveyor 34 and 13 import of surge tank containing solid waste
It is connected.The outlet of surge tank containing solid waste 13 is connected with 14 import of product pump, the outlet of product pump 14 and 15 inner tube import phase of heat exchanger
Even, 15 inner tube outlet of heat exchanger is connected with 16 material inlet of overcritical water oxidization reactor.
The outlet of liquid oxygen vessel 17 is connected with 18 import of liquid oxygen pump, and the outlet of liquid oxygen pump 18 is connected with 19 import of liquid oxygen gasifier,
The outlet of liquid oxygen gasifier 19 is connected with 20 import of oxygen surge tank, the outlet of oxygen surge tank 20 and overcritical water oxidization reactor 16
Oxygen inlet is connected.
16 product exit of overcritical water oxidization reactor is connected with 15 outer tube hot fluid inlet of heat exchanger, 15 outer tube of heat exchanger
Hot fluid outlet ports are connected with 21 product inlet of steam generator, and 21 product exit of steam generator is connected with 24 import of pressure reducing valve,
The outlet of chilled water tank 22 is connected with 23 import of cooling water pump, the outlet of cooling water pump 23 and 21 cooling water inlet phase of steam generator
Even, steam generator 21 generates steam, sells for commercial plant or outside.
The outlet of pressure reducing valve 24 is connected with 25 product inlet of three phase separator, and 25 gas phase of three phase separator puts idle discharge, three-phase
25 liquid-phase outlet of separator is connected with following liquid-phase processing unit 28,25 solid-phase outlet of three phase separator and solid product feed bin 26
Import be connected, solid product feed bin 26 outlet is connected with 27 import of third screw conveyor, third screw conveyor 27 export and
29 import of centrifuge is connected, and the outlet of 29 liquid product of centrifuge is connected with 30 import of feed back tank, and the outlet of feed back tank 30 is pumped with feed back
31 imports be connected, feed back pump 31 outlet is connected with 25 returning charge import of three phase separator, 29 solid product of centrifuge export with it is subsequent
32 import of solid phase processing unit is connected.
This example is by taking supercritical Water Oxidation Technology processing sludge class contains solid debirs as an example, to containing the pre- of solid debirs
Processing module and the online separation module of subsequent products etc. elaborate:
When system starts, it will be full of softened water in system, system is gradually warmed up by external electrical heaters, heat up
After the completion, it is boosted step by step to system, is finally gradually warmed up system and boosts to supercriticality, carry out standard before system starting
It is standby.
When system operates normally, it is placed in material bin containing solid waste 1 containing the sludge containing solid waste, passes through the first spiral transferring
It send machine 2 to quantify sludge to be transported in crusher 3, blade is installed on 2 latter half conveyor screw of the first screw conveyor, it will
The foreign matters such as bulk sludge and brick carry out first order shearing-crushing, and clipped broken sludge enters in crusher 3, to dirt
It is broken that mud carries out the second level, while further breaing up sludge, and the sludge after two-stage crushing enters blend tank containing solid waste 4
In, allotment and the homogeneous of sludge are carried out in blend tank containing solid waste 4, softening water out and softening water pump 6 in water softener tank 5
Import is connected, and softened water needed for sludge allotment is quantitatively transported in blend tank containing solid waste 4 by softening water pump 6, need to add
Softening water is determined according to by sludge initial aqueous rate, and sludge is formulated to 90% or so moisture content, it is made to have flowing
Property, meet the conveying requirement of subsequent material pump.Meanwhile blender 7, the shape of blender 7 being installed in blend tank containing solid waste 4
Formula is frame combination vane type, and the combination of the two can make sludge blend tank by circumferential and radial uniform stirring, avoid
Sludge settling aggregation.It deploys and the sludge after the completion of homogeneous enters directly into vibrating screen 8, make in the Separation by vibration of vibrating screen 8
Under, the non-breakable foreign matter such as some metal class such as bolts is separated with the sludge of good fluidity, and the foreign matter screened out is put
It sets in storage slag chute 9, carries out subsequent processing and placement, sludge obtains the screening process of the third level in vibrating screen 8, after screening
Sludge is connected with 10 import of screw pump, is transported in iron remover 11 by screw pump 9, the iron that will mix in sludge in iron remover 11
Magnetic impurity further progress is finely removed, and ensure that the mechanical equipments such as grinder work normally safely in subsequent delivery system,
Except the sludge after complete Ferromagnetic Impurities enters in subsequent grinding pump 12, sludge is ground, is ground to sludge partial size in 30-
Between 40nm.Sludge after grinding enters in surge tank containing solid waste 13.It is added in surge tank containing solid waste 13 simultaneously suitable
The quartz sand of amount, quartz sand by the second screw conveyor 34 from being transported in quartz sand feed bin 33 in surge tank containing solid waste 13,
It is mixed with sludge, the amount of added quartz sand should meet mixed material flow velocity greater than critical dropping velocity in system.In advance
Material free from foreign meter and good fluidity after the completion of processing is transported to 15 inner tube import of heat exchanger via product pump 14, and material exists
It is preheated in heat exchanger 15,15 outer tube hot fluid of heat exchanger derives from the high temperature fluid after supercritical water oxidation, fresh
Material enters 16 material inlet of reactor via 15 inner tube outlet of heat exchanger after the completion of 15 inner tube of heat exchanger preheats.
Oxidant is oxygen in reaction system, and oxygen sources are in the gasification of liquid oxygen.The outlet of liquid oxygen vessel 17 and liquid oxygen pump 18
Entrance is connected, and liquid oxygen is transported in liquid oxygen gasifier 19 by the outlet of liquid oxygen pump 18, and liquid oxygen is in liquid oxygen gasifier, in the work of air
Under, gasify as oxygen, the outlet of liquid oxygen gasifier 19 is connected with oxygen surge tank 20, and oxygen surge tank 20 is interior to be stored and gasified
Oxygen, oxygen outlet answers 16 oxidant inlet of device to be connected with hair on oxygen surge tank 20.
Sludge and oxygen after preheating carry out hybrid reaction in overcritical water oxidization reactor 16, set inside reactor 16
There is internal screw thread, under the action of internal screw thread, greatly strengthen the turbulence intensity of reacting fluid, so that reactant is able to more thoroughly
Degradation, meanwhile, under the disturbance of internal screw thread and the double action of quartz sand, avoid the mineralization that will appear in reaction process
Clogging.Simultaneously because highly exothermic in reaction process, addition additional fuel is no longer needed in reaction process just can maintain system
Normal operation in a supercritical state.Hot fluid a part after reaction is used for producing steam for preheating fresh material, a part
It sells outside.Reactor 16 exports hot fluid and is connected with 15 outer tube hot fluid inlet of heat exchanger, and hot fluid is internal in 15 outer tube of heat exchanger
Fresh material heating in pipe, the hot fluid after the completion of exchanging heat enter 21 mid-game of steam generator via the outlet of 15 outer tube of heat exchanger
Pipe hot fluid inlet, cooling water derives from extraneous chilled water tank 22 in steam generator 21, is transported to steaming via cooling water pump 23
The steam of vapour generator cooling water inlet, generation is sold for industry or outside, coil outlets and decompression valve inlet in steam generator 21
It is connected, the reaction product after the completion of cooling down enters to be depressured via pressure reducing valve 24.
24 low exit temperature low pressure product of pressure reducing valve enters three phase separator 25.It is up to standard after the separation of three phase separator 25
The direct high altitude discharge of gas phase, liquid phase enter following liquid-phase processing unit 28, such as qualified discharge or other Land use systems, after separation
Solid phase be drained into solid product feed bin 26 via 25 bottom slag discharge of three phase separator, the outlet of solid product feed bin 26 and the
Three screw conveyors, 27 import is connected, and the outlet of third screw conveyor 27 is connected with 29 material inlet of centrifuge, after separation
Solid product still there is certain moisture, herein using two-stage separation be used in conjunction, through centrifuge 29 centrifugation after liquid phase enter
In feed back tank 30, to avoid still containing part residue in liquid phase, the liquid phase separated herein is transported to three via feed back pump 31
25 returning charge import of phase separator, carries out the multi-cycle separation of liquid product, and the dry solid residue after the centrifugation of centrifuge 29 enters
Subsequent solid phase processing unit 32, carries out the recycling of solid residue, or for brickmaking, potting grain and directly outer sells.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (7)
1. containing intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology, which is characterized in that including containing solid
Waste preprocessing module, warm-up block containing solid waste, oxidant supplying module, supercritical water oxidation module, subsequent products cooling
Voltage reduction module and the online separation module of subsequent products；It is carried out in advance containing the sludge containing solid waste by preprocessing module containing solid waste
After processing enter warm-up block containing solid waste, the sludge after preheating enter in supercritical water oxidation module with oxidant supplying module
The oxidant that conveying comes carries out hybrid reaction；Product after reaction enters subsequent production after the cooling of subsequent products decrease temperature and pressure module
The online separation module of object carries out three phase separation.
2. according to claim 1 contain intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology,
It is characterized in that, preprocessing module containing solid waste includes material bin containing solid waste (1), water softener tank (5) and quartz sand feed bin
(33)；The outlet of material bin containing solid waste (1) is connected by the first screw conveyor (2) with crusher (3)；Water softener tank (5) is logical
Softening water pump (6) is crossed to be connected with blend tank containing solid waste (4)；The outlet of blend tank containing solid waste (4) is sequentially connected vibrating screen
(8), screw pump (10), iron remover (11), grinding pump (12) and surge tank containing solid waste (13)；The foreign matter of vibrating screen (8) goes out
Mouth is connected with slag ladle (9)；The second screw conveyor (34) and surge tank containing solid waste (13) that quartz sand feed bin (33) passes through
It is connected.
3. according to claim 1 or it is described based on supercritical Water Oxidation Technology contain intrinsic machine treatment of wastes produced and segregative line
System, which is characterized in that warm-up block containing solid waste includes product pump (14) and heat exchanger (15), and material is through object after the completion of pretreatment
Material pump (14) is transported to heat exchanger (15) inner tube import, is preheated in heat exchanger (15), heat exchanger (15) outer tube hot fluid
High temperature fluid after supercritical water oxidation, fresh material is after the completion of heat exchanger (15) inner tube preheats, via changing
Hot device (15) inner tube outlet enters the material inlet of supercritical water oxidation module.
4. according to claim 3 or it is described based on supercritical Water Oxidation Technology contain intrinsic machine treatment of wastes produced and segregative line
System, which is characterized in that supercritical water oxidation module is overcritical water oxidization reactor (16), overcritical water oxidization reactor (16)
Material inlet be connected with heat exchanger (15) inner tube outlet, oxidant inlet is connected with oxidant supplying module, export hot fluid
It is connected with the outer tube hot fluid inlet of heat exchanger (15), the hot fluid after heat exchange enters subsequent through the outlet of heat exchanger (15) outer tube
Product decrease temperature and pressure module.
5. according to claim 4 or it is described based on supercritical Water Oxidation Technology contain intrinsic machine treatment of wastes produced and segregative line
System, which is characterized in that oxidant supplying module includes liquid oxygen vessel (17), and the outlet of liquid oxygen vessel (17) is sequentially connected liquid oxygen pump
(18), liquid oxygen gasifier (19) and oxygen surge tank (20), the outlet of oxygen surge tank (20) and supercritical water oxidation
The oxidant inlet of device (16) is connected.
6. according to claim 4 or it is described based on supercritical Water Oxidation Technology contain intrinsic machine treatment of wastes produced and segregative line
System, which is characterized in that subsequent products decrease temperature and pressure module includes steam generator (21), chilled water tank (22)；Heat exchanger (15)
Outer tube outlet enters hot fluid inlet in steam generator (21) and is connected；Chilled water tank (22) passes through cooling water pump (23) and steam
Generator (21) is connected；Steam generator (21) is connected by pressure reducing valve (24) with the online separation module of subsequent products.
7. according to claim 6 or it is described based on supercritical Water Oxidation Technology contain intrinsic machine treatment of wastes produced and segregative line
System, which is characterized in that it includes three phase separator (25), following liquid-phase processing unit (28) that the online separation module of subsequent products, which is connected,
And subsequent solid phase processing unit (32)；The outlet of pressure reducing valve (24) is connected with three phase separator (25), through three phase separator
(25) the gas phase direct emission up to standard after separating, liquid phase enter following liquid-phase processing unit (28), and solid-phase outlet is sequentially connected solid
Phase product feed bin (26), third screw conveyor (27) and centrifuge (29), the liquid-phase outlet after centrifuge (29) centrifugation
It is sequentially connected feed back tank (30) and feed back pump (31), feed back pumps the outlet and the returning charge import phase of three phase separator (25) of (31)
Even；The dry solid residue of centrifuge (29) enters in subsequent solid phase processing unit (32) recycling for carrying out solid residue.
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| CN111234877A (en) * | 2020-03-11 | 2020-06-05 | 西安交通大学 | System and method for supercritical water gasification hydrogen production and solid-liquid residue harmless treatment of coal |
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| CN114685021A (en) * | 2022-04-07 | 2022-07-01 | 西安交通大学 | Supercritical water oxidation multi-stage treatment system and method for organic waste |
| CN114822898A (en) * | 2022-04-29 | 2022-07-29 | 西安交通大学 | System and method for supercritical water oxidation treatment of radioactive wastes |
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| CN111781014A (en) * | 2020-06-26 | 2020-10-16 | 西安交通大学 | Online sampling system and method based on supercritical water oxidation technology |
| CN112844346A (en) * | 2020-12-31 | 2021-05-28 | 成都九翼环保科技有限公司 | Supercritical hydrothermal powdered activated carbon regeneration device and method |
| CN113003887A (en) * | 2021-03-18 | 2021-06-22 | 西安交通大学 | High-concentration nitrogen-containing organic wastewater denitrification device based on biochemical-supercritical water oxidation coupling technology |
| CN114685021A (en) * | 2022-04-07 | 2022-07-01 | 西安交通大学 | Supercritical water oxidation multi-stage treatment system and method for organic waste |
| CN114822898A (en) * | 2022-04-29 | 2022-07-29 | 西安交通大学 | System and method for supercritical water oxidation treatment of radioactive wastes |
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