CN112517213A - Be applied to outer rotor that birotor flour mill removed adherence effect - Google Patents
Be applied to outer rotor that birotor flour mill removed adherence effect Download PDFInfo
- Publication number
- CN112517213A CN112517213A CN202011262337.1A CN202011262337A CN112517213A CN 112517213 A CN112517213 A CN 112517213A CN 202011262337 A CN202011262337 A CN 202011262337A CN 112517213 A CN112517213 A CN 112517213A
- Authority
- CN
- China
- Prior art keywords
- outer rotor
- air inlet
- counterattack
- rotor
- support ring
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 title claims abstract description 25
- 235000013312 flour Nutrition 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 28
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 239000000428 dust Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000000843 powder Substances 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
- B02C19/0018—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) using a rotor accelerating the materials centrifugally against a circumferential breaking surface
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention provides an outer rotor applied to a double-rotor flour mill wall-removing effect, which is arranged on the periphery of an inner rotor, and comprises an upper support ring, a lower support ring and a plurality of air inlet counterattack blades, wherein the air inlet counterattack blades are uniformly distributed along the circumferential direction of an annular space between the upper support ring and the lower support ring, the air inlet counterattack blades are wedge-shaped pieces, the thickness of the air inlet counterattack blades is reduced along the outward extension direction of the diameter of the outer rotor, two adjacent air inlet counterattack blades form an air inlet channel, each air inlet counterattack blade is provided with a windward side and a leeward side, the included angle between the windward side and the axis of the outer rotor is 60 degrees. The invention has the beneficial effects that: the problem of material adhesion on the inner wall is solved, the rotating speed is increased, and the product fineness is improved; sieve rotation is eliminated, the sieve blockage phenomenon is reduced, and the equipment operation rate is improved; the operation is carried out under negative pressure, no dust is diffused outwards, and the environment-friendly effect is good; the process is simplified, and the cost is reduced; the equipment runs stably without blocking the screen and instantaneous deceleration and vibration caused by wall adhesion.
Description
Technical Field
The invention relates to the technical field of double-rotor pulverizer equipment, in particular to an outer rotor applied to wall-removing effect of a double-rotor pulverizer.
Background
The double-rotor pulverizer is a main device for pulverizing limestone (calcium carbonate), and when the impact speed of the limestone reaches 30m/s, cracks are generated and crushed. The size of the particle size is in direct proportion to the impact velocity, i.e., the higher the impact velocity, the smaller the particle size. For example, when processing cement or mineral powder, the product granularity is less than 200 meshes, namely less than 0.074 mm. When the general feeding granularity is about 30mm, the impact velocity required by the material is more than 80m/s, and the product standard can be met. Due to high speed and heavy load, the diameter of the central vertical shaft is large, the diameter of a matched bearing is also large, the linear velocity is high, and the bearing is easy to heat and damage. Therefore, the double-rotor pulverizer changes the original mode that only one impact speed, namely front impact, is combined by two impacts, namely inner rotor impact and outer rotor counterattack. The impact to which the material is subjected is approximately equal to the superposition of these two impacts.
The impact rotation speed of the inner rotor is limited by the limit rotation speed of the bearing, the limit rotation speed of the large-diameter bearing of the double-rotor pulverizer is about 1000rpm (1000 revolutions per minute), the limit rotation speed cannot be increased infinitely, the linear speed of the inner rotor can only reach 50-60 m/s, and the rest impact can only be compensated by the outer rotor. The material is thrown by the inner rotor and rushes to the outer rotor at high speed, and the outer rotor reversely impacts. The materials impact the outer rotor under the throwing effect of the inner rotor and collide for many times in the process of rebounding and impacting the materials by the high-speed rotation of the outer rotor. In the collision, the material is broken up and the impact velocity is then attenuated.
In the existing in-service double-rotor impact mill, the outer rotor is made of a wear-resistant alloy plate or a wear-resistant composite plate by rolling, and the lower part of the outer rotor is provided with a back taper discharging screen which rotates together with the outer rotor in turns and is formed by rolling a punched wear-resistant screen plate. The crushed materials are sieved in a high-speed rotation of an rotary sieve, fine materials are discharged through a discharge port, and coarse materials automatically climb upwards under the action of centrifugal force in the rotation of an outer rotor to participate in impact again. But part of coarse materials are larger, the centrifugal force of the rotary screen is not enough to enable the coarse materials to automatically climb, and the coarse materials are overturned upwards and thrown away by a third-stage overturning impact block of the inner rotor.
Many materials impact the outer rotor in the process of impact velocity attenuation, and when the linear velocity of the outer rotor is higher than the material impact velocity in the attenuation process, the materials can be attached to the inner wall of the outer rotor and rotate together with the outer rotor to generate an adherence effect. And, the production of adherence effect will be followed whole production process, and the material after the impact velocity decay constantly accumulates the bodiness at outer rotor inner wall, makes the impact chamber diminish, and material impact distance shortens, and the mutual collision probability of material self becomes the step-down, and outer rotor weight increases rapidly, and machine load increases, and output sharply reduces, and unqualified product increases, and the machine trip is shut down at last, seriously influences the lime stone crushing processing.
Disclosure of Invention
In view of this, in order to solve the problem that the production is affected by the fact that materials are attached to the inner wall of the inner rotor in the process of crushing the materials in the existing double-rotor pulverizer, the embodiment of the invention provides the outer rotor applied to the wall-sticking-removing effect of the double-rotor pulverizer.
The embodiment of the invention provides an outer rotor applied to a wall-removing effect of a double-rotor pulverizer, which is arranged at the periphery of an inner rotor of the double-rotor pulverizer, wherein the outer rotor comprises an upper supporting ring and a lower supporting ring which are oppositely arranged up and down, and a plurality of air inlet counterattack blades, all the air inlet counterattack blades are uniformly distributed along the circumferential direction of an annular space between the upper supporting ring and the lower supporting ring, the air inlet counterattack blades are wedge-shaped blades, the thickness of the air inlet counterattack blades is reduced along the outward extension direction of the diameter of the outer rotor, any two adjacent air inlet counterattack blades are arranged at intervals to form an air inlet channel, the air inlet counterattack blades are provided with a windward surface and a leeward surface, the included angle between the windward surface and the axis of the outer rotor is 60 degrees, and the included angle between the leeward surface and.
Furthermore, the cross section of the air inlet counterattack blade is pentagonal, the air inlet counterattack blade is provided with two non-adjacent side surfaces with an included angle of 10 degrees, and the two side surfaces are the windward surface and the leeward surface respectively.
Further, the radian of each air inlet counterattack blade in the circumferential direction of the outer rotor is 8 degrees.
Further, the outer rotor still includes the outer rotor band pulley, the outer rotor band pulley set up in go up the supporting ring middle part, and the outer wall passes through a plurality of bracing pieces and connects go up the supporting ring inner wall.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: according to the outer rotor applied to the wall-sticking-removing effect of the double-rotor flour mill, the air inlet counterattack pieces form a gap structure on the outer rotor, the air inlet channels formed by the two adjacent air inlet counterattack pieces are arranged at intervals to generate air flow in the rotating process of the outer rotor, the air flow impact action prevents materials from attaching to the inner wall of the outer rotor, the problem of material attachment of the inner wall of the outer rotor is solved, compared with the side wall of the outer rotor with the original closed structure, the outer rotor in the application can greatly improve the rotating speed, and the fineness of a product can be greatly improved; the rotary sieve arranged at the bottom of the outer rotor of the device is eliminated, and the dynamic powder concentrator, the bag type dust collector and the fan are used for extracting fine powder, so that the sieve blocking phenomenon of the device in the operation process is reduced, and the operation rate of the device is improved; because the negative pressure operation is adopted, no dust is diffused to the outside of the equipment, and the environment-friendly effect is good; the production process flow is simplified, and the investment cost and the operation cost are reduced; the outer rotor adopts a vane type structure, the outer rotor has no disturbance of wall-adhering effect, so that the equipment operates stably, has no screen blocking phenomenon, and has no instantaneous speed reduction and vibration of the outer rotor caused by the wall-adhering effect, the rotating speed of the outer rotor is greatly improved, the composite impact linear speed of the inner rotor and the outer rotor is also greatly improved, the fineness qualification ratio of the impacted materials is greatly improved, and the product yield is increased.
Drawings
FIG. 1 is a perspective view of an outer rotor for the dual rotor pulverizer wall-removing effect of the present invention;
FIG. 2 is a schematic cross-sectional view of the inlet reaction vanes 103 of FIG. 1;
FIG. 3 is a perspective view of an outer rotor and an inner rotor for the de-adherence effect of the dual rotor pulverizer of the present invention;
FIG. 4 is a schematic cross-sectional view of an outer rotor and an inner rotor for the de-adherence effect of a dual-rotor pulverizer of the present invention;
FIG. 5 is a flow diagram of a prior art production process arrangement;
fig. 6 is a flow chart of a production process layout after modification in the present embodiment.
In the figure: 1-outer rotor, 101-upper supporting ring, 102-lower supporting ring, 103-air inlet counterattack blade, 104-outer rotor sleeve, 105-supporting rod, 106-outer rotor belt wheel, 107-connecting plate, 108-air inlet channel, 2-inner rotor, 201-inner rotor throwing plate, 202-inner rotor secondary three-stage impact block, 203-inner rotor sleeve and 204-inner rotor belt wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an outer rotor 1 for a dual rotor pulverizer to remove an adherence effect, the outer rotor 1 is disposed at a periphery of an inner rotor 2 of the dual rotor pulverizer, and the outer rotor 1 includes an upper support ring 101 and a lower support ring 102 disposed opposite to each other in an up-down direction, and a plurality of air intake reaction blades 103 uniformly disposed between the upper support ring 101 and the lower support ring 102.
Specifically, the upper support ring 101 and the lower support ring 102 are circular rings with the same diameter, and the upper support ring 101 is arranged above the lower support ring 102, and the axes of the upper support ring and the lower support ring coincide.
Referring to fig. 1 and 2, all the air intake counterattack blades 103 are uniformly distributed along the circumferential direction of the annular space between the upper support ring 101 and the lower support ring 102, and the upper end of each air intake counterattack blade 103 is connected with the upper support ring 101, and the lower end thereof is connected with the lower support ring 102. Here, the air inlet counterattack blades 103 are wedge-shaped pieces, the thickness of the air inlet counterattack blades 103 is reduced along the outward extending direction of the diameter of the outer rotor 1, and any two adjacent air inlet counterattack blades 103 are arranged at intervals to form an air inlet channel 108. In the rotation process of the outer rotor 1, airflow is formed in the air inlet channel 108, the air inlet counterattack blade 103 is provided with a windward surface 103a and a leeward surface 103b, the included angle between the windward surface 103a and the axis of the outer rotor 3 is b, wherein b is 60 degrees, and the included angle between the leeward surface 103b and the axis of the outer rotor is a, wherein a is 70 degrees.
The number of the intake counterattack vanes 103 may be determined according to the diameter of the outer rotor 1. Preferably, the arc of each of the intake counterattack vanes 103 in the circumferential direction of the outer rotor 1 is c, where c is 8 °. The cross section of the air inlet counterattack blade 103 is pentagonal, the air inlet counterattack blade 103 is provided with two non-adjacent side surfaces with an included angle of 10 degrees, and the two side surfaces are the windward surface 103a and the leeward surface 103b respectively. At this time, the air inlet counterattack blades 103 are reasonably and uniformly distributed, and the air flow in the air inlet channel 108 can completely cover the inner wall of the outer rotor 1.
The outer rotor 1 is easy to process, and can be welded by wear-resistant alloy steel (such as NM500) or cast and formed by the wear-resistant alloy.
Referring to fig. 3, the outer rotor 1 further includes an outer rotor pulley 106, the outer rotor pulley 106 is disposed in the middle of the upper supporting ring 101, and the outer wall of the outer rotor pulley 106 is connected to the inner wall of the upper supporting ring 101 through a plurality of supporting rods 105, wherein an embedding groove or a threaded hole is disposed on the inner wall of the upper supporting ring 101, and the supporting rods 105 are embedded in the embedding groove or are in threaded connection with the threaded hole, so as to fixedly connect the outer rotor pulley 106 to the upper supporting ring 101. An outer rotor sleeve 104 is further arranged in the middle of the outer rotor belt wheel 106, and the outer rotor sleeve 104 is connected with the outer rotor belt wheel 106 through a plurality of connecting plates 107.
Referring to fig. 3 and 4, the outer rotor is applied to a dual-rotor pulverizer, and is used in cooperation with an inner rotor 2 of the dual-rotor pulverizer, such as in the present embodiment, the inner rotor 2 is disposed inside the outer rotor 1, and axes of the two are coincident. The inner rotor 2 comprises an inner rotor sleeve 203, an inner rotor scattering plate 201 sleeved on the outer wall of the inner rotor sleeve 203 and an inner rotor secondary three-level impact block 202, wherein the inner rotor scattering plate 201 is arranged above the inner rotor secondary three-level impact block 202. The lower part of the inner rotor sleeve 203 is also provided with an inner rotor pulley 204. The outer rotor 1 is arranged around the inner rotor flinger plate 201 and the inner rotor secondary three-stage impact block 202.
During actual work, the outer rotor sleeve 104 and the inner rotor sleeve 203 are respectively sleeved on a central vertical shaft of the double-rotor pulverizer, the outer rotor belt wheel 106 and the inner rotor belt wheel 204 are respectively driven to rotate through a motor and a belt, and in the rotating process, materials entering the inner part of the outer rotor 1 collide with the inner rotor 2 and the outer rotor 1 for multiple times and then are broken under the scattering and impacting actions of the inner rotor scattering plate 201 of the inner rotor and the inner rotor secondary three-stage impact block 202. Because the side wall of the outer rotor 1 is provided with the plurality of air inlet channels 108, in the process of high-speed rotation of the outer rotor 1, even if the linear speed of the outer rotor 1 is higher than the impact speed of the material in the attenuation process, the broken material cannot be attached to the inner wall of the outer rotor 1 due to the impact effect of the airflow in the air inlet channels 108 on the material adsorbed on the inner wall of the outer rotor 1, and the wall-adhering effect of the inner wall of the outer rotor 1 is damaged.
In this application the outer rotor has adopted the vane type structure, along with increasing substantially of outer rotor 1 rotational speed, the product granularity reduces by a wide margin, rotary screen in the former equipment has lost due effect. After the present invention is adopted, rotating sieve and turnover type reverse impact block in the original equipment are all subtracted, and negative pressure is generated in the production equipment by adopting the dynamic powder selecting machine and the fan of the bag type dust collector arranged behind the dynamic powder selecting machine. The whole production line is in operation. The internal negative pressure production and the crushing production process arrangement are also simplified.
The original production process is arranged as shown in fig. 5, the existing production process is arranged as shown in fig. 6, and the grinding environment is negative pressure when the double-rotor pulverizer applying the outer rotor is used for grinding, no dust is discharged basically in the grinding process, and a dust removal system is not required to be added in the actual production.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a be applied to outer rotor that birotor flour mill removed adherence effect sets up in the periphery of birotor flour mill's inner rotor, its characterized in that: the outer rotor includes relative last supporting ring and the lower support ring that sets up from top to bottom and a plurality of air inlet counterattack blade, and all air inlet counterattack blades along go up the supporting ring with annular space's between the lower support ring circumference evenly distributed, the air inlet counterattack blade is the wedge piece, along the outside extending direction of outer rotor diameter the air inlet counterattack blade thickness reduces, arbitrary adjacent two the air inlet counterattack piece interval sets up and forms air inlet channel, the air inlet counterattack blade has windward side and leeward side, the windward side with the contained angle of outer rotor axis is 60, the leeward side with the contained angle of outer rotor axis is 70.
2. The outer rotor applied to the de-adherence effect of the double-rotor pulverizer as claimed in claim 1, wherein: the cross section of the air inlet counterattack blade is pentagonal, the air inlet counterattack blade is provided with two non-adjacent side surfaces with an included angle of 10 degrees, and the two side surfaces are the windward surface and the leeward surface respectively.
3. The outer rotor applied to the de-adherence effect of the double-rotor pulverizer as claimed in claim 1, wherein: the radian of each air inlet counterattack blade in the circumferential direction of the outer rotor is 8 degrees.
4. The outer rotor applied to the de-adherence effect of the double-rotor pulverizer as claimed in claim 1, wherein: the outer rotor still includes the outer rotor band pulley, the outer rotor band pulley set up in go up the support ring middle part, and the outer wall passes through a plurality of bracing pieces and connects go up the support ring inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011262337.1A CN112517213A (en) | 2020-11-12 | 2020-11-12 | Be applied to outer rotor that birotor flour mill removed adherence effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011262337.1A CN112517213A (en) | 2020-11-12 | 2020-11-12 | Be applied to outer rotor that birotor flour mill removed adherence effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112517213A true CN112517213A (en) | 2021-03-19 |
Family
ID=74982267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011262337.1A Pending CN112517213A (en) | 2020-11-12 | 2020-11-12 | Be applied to outer rotor that birotor flour mill removed adherence effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112517213A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149250Y (en) * | 1993-02-24 | 1993-12-15 | 国家建筑材料工业局合肥水泥研究设计院 | Vertical machine for breaking |
| KR200343761Y1 (en) * | 2003-12-12 | 2004-03-12 | 이부규 | Wings of imperer of exhaust fan |
| CN203627302U (en) * | 2013-11-20 | 2014-06-04 | 浙江双阳风机有限公司 | Centrifugal fan impeller |
| CN105536957A (en) * | 2016-01-28 | 2016-05-04 | 中国科学院上海高等研究院 | Impeller, superfine mill and superfine milling system |
| CN206082858U (en) * | 2016-07-11 | 2017-04-12 | 郑州大学 | Novel immediately, grind dynamic and static combination formula selection powder machine |
| CN214717359U (en) * | 2020-11-12 | 2021-11-16 | 湖北第二师范学院 | Be applied to outer rotor that birotor flour mill removed adherence effect |
-
2020
- 2020-11-12 CN CN202011262337.1A patent/CN112517213A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149250Y (en) * | 1993-02-24 | 1993-12-15 | 国家建筑材料工业局合肥水泥研究设计院 | Vertical machine for breaking |
| KR200343761Y1 (en) * | 2003-12-12 | 2004-03-12 | 이부규 | Wings of imperer of exhaust fan |
| CN203627302U (en) * | 2013-11-20 | 2014-06-04 | 浙江双阳风机有限公司 | Centrifugal fan impeller |
| CN105536957A (en) * | 2016-01-28 | 2016-05-04 | 中国科学院上海高等研究院 | Impeller, superfine mill and superfine milling system |
| CN206082858U (en) * | 2016-07-11 | 2017-04-12 | 郑州大学 | Novel immediately, grind dynamic and static combination formula selection powder machine |
| CN214717359U (en) * | 2020-11-12 | 2021-11-16 | 湖北第二师范学院 | Be applied to outer rotor that birotor flour mill removed adherence effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140183290A1 (en) | Super Pulverizer | |
| CN102389852B (en) | Multitime-separation high-efficient cement vertical mill | |
| CN104941769B (en) | A kind of solid material Ginding process and solid material grinder | |
| CN101569871A (en) | Discharging device for horizontal planetary ball mill | |
| CN104001593B (en) | The material-gathering device of horizontal planetary ball mill | |
| CN203695194U (en) | Efficient slag powder selecting machine | |
| CN111215220A (en) | Production process system for producing multi-product machine-made sand | |
| CN214717359U (en) | Be applied to outer rotor that birotor flour mill removed adherence effect | |
| CN110732382A (en) | machine-made sand vertical mill and production process system thereof | |
| CZ232096A3 (en) | Device with counter-rotating rotors for coal/mineral pulverizer | |
| CN106031901A (en) | Cage type rotor eddy flow ultra-fine powder concentrator | |
| CN102631975B (en) | Sealing device for separator of vertical roller mill | |
| CN104399556B (en) | A kind of Chinese herbal medicine powdery raw material production equipment | |
| CN112517213A (en) | Be applied to outer rotor that birotor flour mill removed adherence effect | |
| CN209934854U (en) | Turbulent flow strong impact mill | |
| CN111686920A (en) | High-efficient developments rotary separator of steel ball coal mill | |
| CN104437754B (en) | A kind of medicine material crushes and screens equipment integrating | |
| CN104383982B (en) | A kind of herbal raw material powder Preparation equipment | |
| CN104383980B (en) | Screening plant pulverized by a kind of Chinese medicine | |
| CN201783344U (en) | Eccentric ring hammer coal crusher | |
| CN103495458A (en) | Birotor superfine impacting hammer crusher | |
| CN211514732U (en) | Machine-made sand vertical mill and machine-made sand production process system | |
| CN211436519U (en) | Production process system for producing multi-product machine-made sand | |
| CN210646655U (en) | High-efficient multistage ball-milling device | |
| CN207153820U (en) | Straight type mark chamber angle rotation disintegrating machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |