CN104759334B - High efficiency medium-speed grinding device - Google Patents
High efficiency medium-speed grinding device Download PDFInfo
- Publication number
- CN104759334B CN104759334B CN201510016050.3A CN201510016050A CN104759334B CN 104759334 B CN104759334 B CN 104759334B CN 201510016050 A CN201510016050 A CN 201510016050A CN 104759334 B CN104759334 B CN 104759334B
- Authority
- CN
- China
- Prior art keywords
- mill
- air inlet
- blast pipe
- module
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
- B02C21/002—Disintegrating plant with or without drying of the material using a combination of a roller mill and a drum mill
- B02C21/005—Disintegrating plant with or without drying of the material using a combination of a roller mill and a drum mill the roller mill having cooperating rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses an YF-W high efficiency medium-speed grinding device. The device comprises a support transmission module, a material grinding module, a powder conveying and drying module and a material powder separation module. The powder conveying and drying module is provided with a millstone central air inlet, an air inlet pipe above a millstone, and a central air inlet pipe. Hot air can enter into the millstone from an annular gap and respectively from the millstone central air inlet, the air inlet pipe above the millstone and the central air inlet pipe so that an original inert zone is thoroughly activated, hot air conveying and drying capability is obviously improved and an air-material ratio is obviously decreased. A separator of the material powder separation module is a dynamic rotation separator and a strong spiral uprising flow field is produced between a rotor block and a wear-resistant machine housing so that material powder separation efficiency is improved. Compared with the traditional medium-speed grinding device, the YF-W high efficiency medium-speed grinding device improves a grinding device output force by 30% or more, reduces a material-air ratio by 10%, reduces unit pulverizing power consumption by 20% and reduces ventilation power consumption by 30%.
Description
【Technical field】
It is a kind of efficient medium-speed pulverizer specifically the present invention relates to powder-making technique field, the efficient middling speeds of hereinafter referred to as YF-W
Mill.
【Background technology】
Medium-speed pulverizer is widely used in the industries such as cement, coal-fired thermal power generation, mine, metal smelt, for by crisp
Material is milled into feed powder.Although compared with Ball Mill, medium-speed pulverizer has small volume, yield height, the low advantage of power consumption, with each
The continuous progressive and continuous improvement to energy-saving requirement at present of industry production technique, medium-speed pulverizer milling performance is also badly in need of changing
Enter, especially more project increasing medium-speed pulverizer yield and reducing the demand of power consumption.
Traditional medium-speed pulverizer structure and principle
Traditional medium-speed pulverizer mainly has two kinds of versions, i.e. HP bowl shaped mills and MPS (ZGM) rubber-tyred mill, every kind of grinding machine root
It is divided into static type and dynamic type again according to the structure of separator.
HP bowl shaped mills can functionally be divided into four functional modules, be followed successively by, feed powder conveying and irradiation modules, lap
Block and support transmission module.With reference to the HP static type medium-speed pulverizers of Fig. 1, feed powder separation module is made up of Lei Mengshi separators 1, is responsible for
Screening separation is carried out to feed powder, qualified feed powder is conveyed out grinding machine, and underproof feed powder returns mill bowl and re-grinds.Feed powder is defeated
Send and irradiation modules 9 are by the annular gap formed between the space above millstone device 4 and millstone device 4 and grinding machine shell 10
6 compositions, are transported to Lei Mengshi separators 1, while to material using the hot blast entered from annular gap 6 by the feed powder being ground
It is dried.Grinding module is responsible for grinding material, is made up of spring charging device 2, Burnisher apparatus 3 and millstone device 4.Support and pass
Dynamic model block is responsible for supporting mill bowl and rotates it to mill bowl transmission power, is made up of main gear reducer and motor 5.
MPS (ZGM) rubber-tyred mill is also classified into same four functional module, differs primarily in that the structure shape of Burnisher apparatus
The version of formula, the load mode of Burnisher apparatus and millstone device, material grinding, feed powder conveying and dry and separation process
Essentially identical, the principle for supporting transmission module is also the same.
The common ground of traditional medium-speed pulverizer：
1st, material falls into mill center by feed pipe, spreads to periphery with the rotation of mill, until overflowing from mill edge；
2nd, grinding roller is rolled on the mill of horizontal rotation, and material is rolled；
3rd, hot blast is blown in mill from below along the edge of mill, and the material to overflowing from mill edge is dried, and handle
Material is transported to separation module；
The mill analysis of flow field of traditional medium-speed pulverizer：
With reference to Fig. 1, Fig. 3 and Fig. 4, material 12 is entered in mill by central feed tube 16, is fallen in the millstone device 4 of horizontal rotation
On, gradually to external diffusion, when material reaches 3 region of Burnisher apparatus, Burnisher apparatus 3 carry out rolling grinding to material 12, are ground
Material continue to external diffusion, reach the edge of mill, the hot blast being blown upward from mill periphery is carried upwards, while hot blast
Material is dried, and material is transported to feed powder separation module, separator carries out screening separation, qualified feed powder to material
Grinding machine is conveyed out, underproof feed powder returns mill and re-grinds.Hot blast is in conveying, dried material and feed powder separation process
Play highly important effect.The situation in the flow field that hot blast is formed in mill directly influences the conveying output capacity of grinding machine, dries out
Power and separation are exerted oneself, and the entirety for eventually affecting grinding machine is exerted oneself and powder power consumption processed.
Bottom flow field：
Hot blast from below along mill edge enter mill in, above mill and separation module between formed bottom flow field 15.
From mill interior air-flow track 8 as can be seen that there is inertia area 7 above mill, the hot air flow very little in the region, gas are passed in and out
Flow velocity degree is also very low, and material can not can not be in time transported to separation module by efficient drying, feed powder.Because hot blast is from mill
Plate edge is blown upward in mill, so the material and feed powder on mill can not be by hot-air seasoning and conveying in time.
As can be seen here there is very big deficiency in bottom flow field, require further improvement.
Top flow field：
The separation module of traditional static medium-speed pulverizer is Lei Mengshi separators 1, by inner cone 17, grinding machine shell 10, radial direction leaf
Piece 18 and outlet 19 are constituted, and are separated come the thickness for realizing feed powder by changing the flow velocity of ascending air, direction.Air-flow is carried
Feed powder is reached behind the flow field of top, is affected by cyclone separator arrangement, and air-flow occurs bending and rotates, in radial blade 18 and outlet
Swirling eddy 20 is formed between pipe 19.In the region of top flow field 14, the bulky grain feed powder in air-flow is due to collision and centrifugal action
Separated from air-flow, and qualified fine powder is discharged outside mill with air-flow.Because the thunder illiteracy structure of separator 1 is relatively simple, belong to
In the strong separator of low separative efficiency, low volume, so the change of the spin intensity in its flow field for being formed and airflow direction is not
Very big, detached efficiency comparison is low, necessarily directly cause grinding machine separation exert oneself it is low.
With reference to Fig. 2 and Fig. 1, compared with traditional static medium-speed pulverizer, HP dynamic medium-speed pulverizer separator eliminate inner cone 17,
Outlet 19 and radial blade 18, increased pivoting leaf cage 21, and a resistance band is formed when leaf cage 21 rotates, and air-flow passes through resistance
During band, meal is blocked, and fine powder continues to flow with air-flow, so as to realize that thickness powder is separated.Not to leaf when leaf cage rotates
Hot blast on the outside of cage produces very strong turning effort, only to producing turning effort into the hot blast inside leaf cage, so pivoting leaf
Cage does not play a part of centrifugation.Due to the disappearance of centrifugal separating effect, conventional dynamic type separator falls within low separation
Efficiency, resistance-type separator, its separative efficiency is even below static type separator, and increased the SR of grinding machine, causes
Electrical energy consumption of ventilation is significantly increased.Its advantage is easy for the regulation of fineness of pulverized coal, and vacuum strength increases, so its separation is exerted oneself
Compare static type separator higher.
MPS (ZGM) mill separator of being association of activity and inertia be by first two separator simple superposition together, structure is increasingly complex
, the lifting to feed powder fineness is helpful.But the flow field for being formed does not have essence to sexually revise, and separative efficiency is still very low, is
System resistance ratios conventional dynamic separator is bigger.
The analysis more than it can be seen that either static medium-speed pulverizer, dynamic medium-speed pulverizer are still association of activity and inertia medium-speed pulverizer, its
The separative efficiency in top flow field all than relatively low, need further optimization, improves.
【The content of the invention】
The purpose of the present invention is for deficiency of the prior art, there is provided a kind of efficient medium-speed pulverizer of YF-W, by optimization
The flow field of speed mill, and then improve drying capacity, conveying capacity and the separating power of hot blast.
For achieving the above object, the present invention is adopted the technical scheme that：A kind of efficient medium-speed pulverizer, by support transmission module,
Grinding module, feed powder conveying and irradiation modules and feed powder separation module composition, described support transmission module is by positioned at grinding machine bottom
The main gear reducer and motor 5 in portion is constituted；Described grinding module is located at and supports directly over transmission module, by spring charging device
2nd, Burnisher apparatus 3 and millstone device 4 are constituted；Described feed powder conveying and irradiation modules 9 by the top of millstone device 4 space and
The annular gap 6 formed between millstone device 4 and grinding machine shell 10 constitutes, and described feed powder separation module is using dynamic rotary point
From device, described feed powder conveying and irradiation modules 9 is provided with mill center air inlet 24, mill top blast pipe 28 and center air intake
Pipe 30, described mill center air inlet 24 is maze-type structure, is made up of block 34, mill body 35 and blast pipe 36, institute
State mill top blast pipe 28 be located at Burnisher apparatus 3 between, it is evenly distributed in the circumferential direction above mill, its quantity with mill
The quantity of roller arrangement 3 is identical, and described center blast pipe 30 is made up of windband 47 and side air inlet pipe 46, and 47 sets of windband is welded in center and enters
The outside of expects pipe 16；The dynamic rotary separator of described feed powder separation module is by rotor block 31, bearing block 32 and loading drive gear
33 compositions are put, described rotor block 31 is made up of pipe 41, upper cone 42, lower cone 43 and blade 44.
The block 34 of described mill center air inlet 24 is buckled on blast pipe 36, and block lower edge 38 is less than edge on blast pipe
37, along 39 higher than block lower edge 38 on mill.
The air outlet 45 of described mill top blast pipe 28 is held down against the bed of material 26 on mill.
Described center blast pipe 30 is communicated with central feed tube 16.
The upper cone 42 of described rotor block 31 is buckled togather with lower cone 43, is together welded on pipe 41, blade
44 are distributed uniformly and circumferentially, and are welded on lower cone 43 and pipe 41.
The invention has the advantages that：
1st, the efficient medium-speed pulverizers of YF-W of the invention efficiently solve the irrational problem in traditional medium-speed pulverizer flow field, through multiple
Field performance test proves that can make the raising more than 30% of exerting oneself of grinding machine, than declining 10%, system of unit powder power consumption declines fertilizer
20%, electrical energy consumption of ventilation declines 30%, and the effect of Increasing Production and Energy Saving is considerable；
2nd, the mill flow field of the efficient medium-speed pulverizers of YF-W of the invention is more reasonable, the drying, conveying and feed powder to material
Separative efficiency is all significantly lifted, make medium-speed pulverizer overall performance include feed powder fineness, feed powder uniformity, system of unit powder power consumption,
Pulverizer adequacy, mill internal resistance etc. all have the raising of essence than traditional medium-speed pulverizer.
【Description of the drawings】
Fig. 1 is HP static type medium-speed pulverizer structural representations.
Fig. 2 is HP dynamic type medium-speed pulverizer structural representations.
Fig. 3 is traditional static medium-speed pulverizer flow field schematic diagram.
Fig. 4 is traditional static medium-speed pulverizer top flow field schematic top plan view.
Fig. 5 is HP dynamic type medium-speed pulverizers flow field schematic diagram.
Fig. 6 is HP dynamic type medium-speed pulverizer tops flow field schematic top plan view.
Fig. 7 is the efficient medium-speed pulverizer structural representations of YF-W of the present invention.
Fig. 8 is the A-A sectional views in Fig. 7.
Fig. 9 is mill center air inlet schematic diagram.
Figure 10 is the efficient medium-speed pulverizer flow field schematic diagrames of YF-W of the present invention.
Figure 11 is the YF-W efficient medium-speed pulverizer tops flow field schematic top plan view of the present invention.
Figure 12 is rotor block schematic diagram.
Figure 13 is mill top blast pipe schematic diagram.
Blast pipe schematic diagram centered on Figure 14.
【Specific embodiment】
The specific embodiment that the present invention is provided is elaborated below in conjunction with the accompanying drawings.
The reference and part being related in accompanying drawing is as follows：
1- Lei Mengshi separators；2- spring charging devices；3- Burnisher apparatus；4- millstone devices；5- main gear reducers and motor；
6- annular gaps；7- inertia areas；8- air trajectorys；9- feed powders are conveyed and irradiation modules；10- grinding machine shells；11- goes out abrasive material
Powder；12- mill feed materials；13- conventional dynamic separators；14- tops flow field；15- bottoms flow field；16- central feed tubes；In 17-
Cone；18- radial blades；19- outlets；20- swirling eddies；21- pivoting leaf cages；22- leaf cage internal rotating air-flows；23- leaves
Cage outside swirling eddy；24- mills center air inlet；25- mills center air inlet air-flow；The bed of material on 26- mills；27- mills
Top blast pipe air-flow；28- mills top blast pipe；29- centers blast pipe air intake air-flow；30- centers blast pipe；31- rotors
Body；32- bearing blocks；33- gear drives；34- blocks；35- mill bodies；36- blast pipes；Edge on 37- blast pipes；38-
Block lower edge；Edge on 39- mill bodies；40- rotor body region swirling eddies；41- pipes；42- upper cones；43- lower cones；
44- blades；45- air outlets；46- sides air inlet pipe；47- windbands.
Accompanying drawing 7-12 is refer to, with reference to Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12 specific embodiment is illustrated.Fig. 7
For the efficient medium-speed pulverizer structural representations of YF-W that provide of the present invention, the efficient medium-speed pulverizers of described YF-W are by supporting transmission module, grind
Mill module, feed powder conveying and irradiation modules and feed powder separation module composition.
Described support transmission module is made up of main gear reducer and motor 5, positioned at the bottom of grinding machine, is responsible for supporting mill bowl
And rotate it to mill bowl transmission power.
Described grinding module is made up of spring charging device 2, Burnisher apparatus 3 and millstone device 4, and positioned at supporting mould is driven
Directly over block, it is responsible for grinding material.
Described feed powder conveying and irradiation modules 9 is responsible for for feed powder being transported to separator, while being dried to material, institute
The feed powder conveying stated and irradiation modules 9 by the top of millstone device 4 space and millstone device 4 and grinding machine shell 10 between formed
Annular gap 6 constitute.
It should be noted that described feed powder conveying and irradiation modules 9 are provided with mill center air inlet 24, mill top entering
Airduct 28 and center blast pipe 30.
Accompanying drawing 9 is refer to, Fig. 9 is mill center air inlet schematic diagram.Described mill center air inlet 24 is labyrinth type
Structure, is made up of block 34, mill body 35 and blast pipe 36, and block 34 is buckled on blast pipe 36, block lower edge 38 be less than into
Along 37 on airduct, along 39 higher than block lower edge 38 on mill, this structure both ensure that hot blast can be entered smoothly in mill, keep away again
Exempt from material to reveal from mill center air inlet 24.Accompanying drawing 13 is refer to, Figure 13 is mill top blast pipe schematic diagram.Described mill
Disk top blast pipe 28 is located between Burnisher apparatus 3, evenly distributed in the circumferential direction above mill, its quantity and Burnisher apparatus
3 quantity are identical, and its air outlet 45 is down against the bed of material 26 on mill.Accompanying drawing 14 is refer to, blast pipe is illustrated centered on Figure 14
Figure.Described center blast pipe 30 is made up of side air inlet pipe 46 and windband 47, and 47 sets of windband is welded in the outside of central feed tube 16, makes
Center blast pipe 30 is communicated with central feed tube 16.Such structure design causes hot blast except entering in mill from annular gap 6,
Also it is blown into from mill center air inlet 24, mill top blast pipe 28 and center blast pipe 30 respectively and grinds interior, makes original inertia
Region 7 is thoroughly activated, and the conveying and drying capacity for making hot blast is significantly improved, and fertilizer ratio is decreased obviously.
Described feed powder separation module is responsible for carrying out screening separation to feed powder, and positioned at the top of grinding machine, separator is adopted
Dynamic rotary separator, described dynamic rotary separator is by grinding machine shell 10, rotor block 31, bearing block 32 and loading drive gear
Put 33 compositions.Accompanying drawing 12 is refer to, Figure 12 is rotor block schematic diagram.Described rotor block 31 is by pipe 41, upper cone 42, lower cone
Body 43 and blade 44 are constituted, and upper cone 42 is buckled togather with lower cone 43, are together welded on pipe 41, and blade 44 is circumferentially
Direction is uniformly distributed, and is welded on lower cone 43 and pipe 41.Hot blast is entered between blade 44 from the bottom of rotor block 31, rotation
Blade 44 drives hot blast to rotate together, and very strong rotor is formed between blade 44 and between rotor block 31 and grinding machine shell 10
Body region swirling eddy 40.Due to the guide effect of lower cone 43, hot blast rises in the region helix of top flow field 14, finally from going out
Mouth pipe 19 is discharged.Feed powder in whole top flow field 14 all in very strong centrifugation state, so separative efficiency is significantly carried
Height, so that exerting oneself for coal pulverizer is obviously improved.
Accompanying drawing 10, accompanying drawing 11 are refer to, Figure 10 is the efficient medium-speed pulverizer flow field schematic diagrames of YF-W of the present invention, and Figure 11 is this
Bright YF-W efficient medium-speed pulverizer tops flow field schematic top plan view, the efficient medium-speed pulverizers of YF-W cleverly structure design cause hot blast except
From annular gap 6 enter mill in, also respectively from mill center air inlet 24, mill top blast pipe 28 and center blast pipe 30 blow
Enter in mill, form 4 strands of different air-flows, the air-flow that respectively enters in mill from annular gap 6, mill center air inlet air-flow 25,
Mill top blast pipe air-flow 27 and center blast pipe air intake air-flow 29, the bottom formed in the presence of this 4 strands of air-flows are common
Flow field 15 can be full of all spaces in grinding machine inside so that inertia area 7 originally is thoroughly activated, and makes the conveying and drying of hot blast
Ability is significantly improved, and fertilizer ratio is decreased obviously；Feed powder separation module adopts dynamic separator, and the rotor block 31 of dynamic separator is only
Special structure design, makes hot blast enter between blade 44 from the bottom of rotor block 31, and the blade 44 of rotation drives hot blast to rotate together,
Very strong rotor body region swirling eddy 40 is formed between blade 44 and between rotor block 31 and grinding machine shell 10, while by
In the guide effect of lower cone 43, hot blast rises in the region helix of top flow field 14, so as to form the upper of the efficient medium-speed pulverizers of YF-W
Portion flow field 14, feed powder in whole top flow field 14 all in very strong centrifugation state, so separative efficiency is greatly improved,
So that exerting oneself for coal pulverizer is obviously improved.
The mill flow field of the efficient medium-speed pulverizers of YF-W of the present invention is more reasonable, so the drying, conveying and material to material
Powder separative efficiency is all significantly lifted, and is made the overall performance of medium-speed pulverizer and is included feed powder fineness, feed powder uniformity, system of unit powder electricity
Consumption, pulverizer adequacy, mill internal resistance etc. all have the raising of essence than traditional medium-speed pulverizer.
The efficient medium-speed pulverizers of YF-W of the present invention efficiently solve the irrational problem in traditional medium-speed pulverizer flow field, through repeatedly existing
Field performance test proves that can make the raising more than 30% of exerting oneself of grinding machine, than declining 10%, system of unit powder power consumption declines fertilizer
20%, electrical energy consumption of ventilation declines 30%, and the effect of Increasing Production and Energy Saving is considerable.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, on the premise of without departing from the inventive method, can also make some improvement and supplement, and these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (5)
1. a kind of efficient medium-speed pulverizer, is conveyed and irradiation modules and feed powder separation module by support transmission module, grinding module, feed powder
Composition, the described transmission module that supports is made up of the main gear reducer and motor (5) positioned at grinding machine bottom；Described grinding module
Positioned at supporting directly over transmission module, it is made up of spring charging device (2), Burnisher apparatus (3) and millstone device (4)；Described
Feed powder is conveyed and irradiation modules (9) are by between the space above millstone device (4) and millstone device (4) and grinding machine shell (10)
Annular gap (6) composition of formation, described feed powder separation module adopts dynamic rotary separator, it is characterised in that：Described
Feed powder is conveyed and irradiation modules (9) are provided with mill center air inlet (24), mill top blast pipe (28) and center blast pipe
(30), described mill center air inlet (24) is maze-type structure, by block (34), mill body (35) and blast pipe (36)
Composition, described mill top blast pipe (28) is evenly distributed in the circumferential direction on mill between Burnisher apparatus (3)
Side, its quantity is identical with Burnisher apparatus (3) quantity, and described center blast pipe (30) is by windband (47) and side air inlet pipe (46) group
Into windband (47) set is welded in central feed tube (16) outside；The dynamic rotary separator of described feed powder separation module is by rotor
Body (31), bearing block (32) and gear drive (33) composition, described rotor block (31) is by pipe (41), upper cone
(42), lower cone (43) and blade (44) are constituted.
2. efficient medium-speed pulverizer according to claim 1, it is characterised in that：The block at described mill center air inlet (24)
(34) it is buckled on blast pipe (36), block lower edge (38) is less than, along (37), edge (39) is higher than block lower edge on mill on blast pipe
(38)。
3. efficient medium-speed pulverizer according to claim 1, it is characterised in that：The air-out of described mill top blast pipe (28)
Mouth (45) is held down against the bed of material (26) on mill.
4. efficient medium-speed pulverizer according to claim 1, it is characterised in that：Described center blast pipe (30) and central feeding
Pipe (16) is communicated.
5. efficient medium-speed pulverizer according to claim 1, it is characterised in that：The upper cone (42) of described rotor block (31) with
Lower cone (43) is buckled togather, and is together welded on pipe (41), and blade (44) is distributed uniformly and circumferentially, and is welded on down
In cone (43) and pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016050.3A CN104759334B (en) | 2015-01-13 | 2015-01-13 | High efficiency medium-speed grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016050.3A CN104759334B (en) | 2015-01-13 | 2015-01-13 | High efficiency medium-speed grinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759334A CN104759334A (en) | 2015-07-08 |
| CN104759334B true CN104759334B (en) | 2017-05-03 |
Family
ID=53641616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016050.3A Active CN104759334B (en) | 2015-01-13 | 2015-01-13 | High efficiency medium-speed grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104759334B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971082B (en) * | 2017-12-30 | 2018-11-30 | 涡阳县丰华面业有限公司 | A kind of efficient milling device |
| CN111686884B (en) * | 2020-06-19 | 2024-04-19 | 上海卡山科技股份有限公司 | Coal mill with wind powder homogenization function |
-
2015
- 2015-01-13 CN CN201510016050.3A patent/CN104759334B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104759334A (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105080698B (en) | Use the grinding process of vertical roller grinder system | |
| CN209109277U (en) | A kind of pre-separation bypass wind roller type vertical mill | |
| CN202387599U (en) | Vortex combined powder separator | |
| CN106040405A (en) | Pre-grinding vertical mill united semi-finish grinding system with built-in powder concentrator | |
| CN207238102U (en) | A kind of dry powder fire extinguishing agent lapping device | |
| CN111495546A (en) | Grinding and crushing device and method for rotary fluidized bed | |
| CN110732382A (en) | machine-made sand vertical mill and production process system thereof | |
| CN209302870U (en) | A kind of spreading is evenly distributed with the roller type vertical mill of spout ring | |
| CN204933651U (en) | Novel vertical mill device | |
| CN204933577U (en) | Vertical Mill device | |
| CN205966113U (en) | Powder in advance of built -in selection powder machine stands to grind unites half whole grinding system | |
| CN104759334B (en) | High efficiency medium-speed grinding device | |
| CN104588191B (en) | Medium-speed abrasive flow field optimization method | |
| CN104001588B (en) | Super fine vertical roller grinds | |
| CN100443187C (en) | Vertical roller grinder | |
| CN2698446Y (en) | Flour mill | |
| CN106466653B (en) | Novel vertical mill device | |
| CN207430394U (en) | The special powder concentrator of coal mill system | |
| CN203899672U (en) | Ultra-thin vertical roll mill | |
| CN203874885U (en) | Vertical type roller mill system | |
| CN211463353U (en) | External circulation system of raw material vertical mill | |
| CN203209140U (en) | Multi-roller and ring hammer composite airflow micro-pulverizer | |
| CN204380819U (en) | Efficient medium-speed pulverizer | |
| CN109158311B (en) | Multistage scattering static neutralization powder selecting device and method | |
| CN105772197A (en) | Production process of ultrafine roller mill device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |