CN216987992U - Jet mill with large sorting particle size range - Google Patents
Jet mill with large sorting particle size range Download PDFInfo
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- CN216987992U CN216987992U CN202123426581.XU CN202123426581U CN216987992U CN 216987992 U CN216987992 U CN 216987992U CN 202123426581 U CN202123426581 U CN 202123426581U CN 216987992 U CN216987992 U CN 216987992U
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- 239000002245 particle Substances 0.000 title claims abstract description 35
- 230000000712 assembly Effects 0.000 claims abstract description 28
- 238000000429 assembly Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 31
- 238000012216 screening Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model discloses an airflow mill with a large sorting particle size range, which comprises a crushing cavity and a grading cavity which are communicated, wherein a feed inlet and an air inlet nozzle are arranged on the crushing cavity, a discharge outlet is arranged on the grading cavity, a plurality of sets of grading wheel assemblies are arranged in the grading cavity, the discharge part of each grading wheel assembly is communicated with the discharge outlet, and a sealing assembly is also arranged between each grading wheel assembly and the discharge outlet; the sealing component is arranged in the annular cavity on the periphery of the discharge port, the annular cavity is provided with a connecting surface which is consistent in the number of the grading wheel components and can be butted with the discharge part of the grading wheel components, the connecting surface is provided with a communication hole for connecting the discharge port with the discharge part of the grading wheel components, the connecting surface is provided with a plurality of through holes, and the annular cavity is provided with at least one air suction hole. Through set up multiunit hierarchical wheel subassembly in hierarchical cavity, can effectively select the material that the particle size is littleer.
Description
Technical Field
The utility model discloses an airflow mill with a large sorting particle size range, and belongs to the technical field of automatic processing equipment.
Background
The jet mill can be used for superfine processing of hard materials with Moh hardness of more than seven grades. In the process of processing a lithium battery, raw materials of the lithium battery are required to be processed into micron-sized materials, and the patent name applied by the inventor is as follows: an air flow mill, having application numbers of: 202022834667.5 discloses an air jet mill that provides for easy and efficient classification of the material.
However, the jet mill with the structure is only provided with a group of grading wheel assemblies, and the rotating speed of the jet mill cannot be increased due to the large size of the jet mill in the process of grading and screening materials, so that the particle size range of the materials discharged from the grading and screening materials is 5-10 micrometers, and the jet mill cannot meet the production requirements for higher particle size requirements.
And the junction between grading wheel subassembly and the discharge gate in the device guarantees only through the precision of machining that the clearance between the two is less than or equal to the material particle size of classifying screen to avoid the direct material after smashing to get into the discharge gate from clearance between the two, and the material particle size that gets into the discharge gate after not screening through grading wheel subassembly leads to sieving out too big. But to the material that the particle size scope is littleer that needs sort, to the clearance requirement of the junction between classifying wheel subassembly and the discharge gate higher, also higher to the machining precision of product, to micron order product, difficult realization.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing the jet mill with the large sorting particle size range, the rotating speed of the grading wheel assembly can be effectively improved by arranging a plurality of groups of grading wheel assemblies in the grading cavity and independently driving through corresponding motors, so that the materials with larger particle sizes are separated into the crushing cavity again to be crushed again, and meanwhile, the grading wheel assemblies and the discharge hole are provided with the air sealing structure, so that the crushed materials can not enter the discharge hole from the connection part of the grading wheel assemblies and the discharge hole to influence the screening effect.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
an airflow mill with a large sorting particle size range comprises a crushing cavity and a grading cavity which are communicated, wherein a feed inlet and an air inlet nozzle are arranged on the crushing cavity, a discharge outlet is arranged on the grading cavity, a plurality of grading wheel assemblies are arranged in the grading cavity, the discharge part of each grading wheel assembly is communicated with the discharge outlet, and a sealing assembly is arranged between each grading wheel assembly and the discharge outlet;
the sealing assembly is arranged on the periphery of the discharge port in an annular cavity, the annular cavity is provided with a connecting surface which is consistent with the grading wheel assembly in quantity and can be butted with the discharge part of the grading wheel assembly, the connecting surface is provided with a connecting hole for communicating the discharge port with the discharge part of the grading wheel assembly, the connecting surface is provided with a plurality of through holes, and the annular cavity is provided with at least one air suction hole.
The jet mill with a large sorting particle size range is characterized in that: four air inlet nozzles are arranged at the lower end of the crushing cavity at equal intervals along the circumference of the crushing cavity, and an air passage of each air inlet nozzle comprises a communicated three-section structure which is respectively a straight line section at an air inlet, a horn mouth section at the middle part and five air inlet holes which are formed by shunting the tail end.
The airflow mill with the large separation particle size range is characterized in that: the distribution structure of five inlet ports is an inlet port in the middle, and the other four inlet ports are distributed on the periphery of the inlet port at equal intervals, and each inlet port is of a horn-shaped structure.
The airflow mill with the large separation particle size range is characterized in that: the four air inlet holes positioned at the periphery are all inclined towards the air inlet hole positioned at the center, and the inclination angle is 12-15 degrees.
The airflow mill with the large separation particle size range is characterized in that: the three grading wheel assemblies are distributed at the periphery of the discharge port at equal intervals, a support plate is fixedly arranged on the grading cavity, and a motor used for driving the corresponding grading wheel assemblies is arranged on the support plate.
The airflow mill with the large separation particle size range is characterized in that: the number of the air suction holes is consistent with that of the grading wheel assemblies, and the air suction holes are respectively formed in the side wall of the annular cavity above the discharging position of the grading wheel assemblies.
The utility model has the beneficial effects that:
1. the grading wheel assemblies are arranged in the grading cavity, and the rotating speed of the grading wheel assemblies can be effectively improved through independent transmission of the corresponding motors, so that the materials with larger particle sizes are separated into the crushing cavity again to be crushed again;
2. through the structure that changes the suction nozzle on smashing the chamber, with in shunting five inlet ports again after the intake duct grow, and five inlet ports are one and are as the center, four in outlying structure, the structure of the inlet port slope of outlying inlet port to central point department accords with the Laval characteristic, has guaranteed under the condition of the same tolerance, can accelerate air velocity, effectively promotes crushing efficiency.
Drawings
FIG. 1 is a top view of an air-jet mill of the present invention having a large range of selected particle sizes;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view C-C of FIG. 1;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a cross-sectional view D-D of FIG. 4;
FIG. 6 is an enlarged schematic view of E in FIG. 2;
FIG. 7 is an enlarged schematic view of F in FIG. 5;
FIG. 8 is a schematic structural diagram of an air inlet nozzle of an air flow mill with a large separation particle size range.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1-8, an air flow mill with a large range of sorting particle diameters comprises a pulverizing cavity 10 and a classifying cavity 20 which are communicated with each other, wherein a feed inlet 12 and an air inlet nozzle 11 are arranged on the pulverizing cavity 10, a discharge outlet 30 is arranged on the classifying cavity 20, a plurality of groups of classifying wheel assemblies 42 are arranged in the classifying cavity 20, the discharge part of each classifying wheel assembly 42 is communicated with the discharge outlet 30, and a sealing assembly is arranged between each classifying wheel assembly 42 and the discharge outlet 30; seal assembly is including setting up discharge gate outlying annular cavity 31, be provided with on the annular cavity 31 with the hierarchical wheel subassembly 42 quantity is unanimous, can rather than the butt joint of ejection of compact department be connected face 34, be provided with the intercommunication on connecting face 34 the connecting hole 35 of the ejection of compact department of discharge gate 30 and hierarchical wheel subassembly, be provided with a plurality of through-holes 33 on connecting face 34, just be provided with at least one suction hole 32 on the annular cavity 31.
After the crushed materials in the crushing cavity 10 enter the grading cavity 20 along with the air flow, the materials with smaller particles enter the grading wheel through the gaps between the blades of the grading wheel, and the entering materials rotate at high speed in the grading wheel, so that the centrifugal force is larger for the materials with larger particle size, and the materials are thrown out of the grading wheel under the action of the centrifugal force before reaching the discharge port and enter the crushing cavity 10 again for crushing again.
In this embodiment, through set up multiunit hierarchical wheel subassembly in hierarchical cavity, through the motor individual drive that corresponds, because the size of hierarchical wheel subassembly is corresponding to have reduced, consequently under the drive of same power motor, the rotational speed of hierarchical wheel subassembly can improve greatly, consequently, the centrifugal force that gets into the material in the hierarchical wheel also can corresponding increase, lead to the material that original particle diameter is great a bit but can get into the discharge gate also can be thrown away the back and smash once more, thereby guaranteed that the material particle diameter of sieving out is littleer.
By arranging the sealing assembly between the grading wheel assembly 42 and the discharge port 30, in the operation process of the device, the annular cavity 31 is air-sucked through the air suction hole 32, so that air flow enters between the connecting surface 34 and the joint of the grading wheel assembly 42 through the through hole 33 to form air seal, and crushed materials are prevented from entering the discharge port from the joint of the connecting surface 34 and the grading wheel assembly 42 to influence the screening effect.
The lower end of the crushing cavity 10 is provided with four air inlets 11 at equal intervals along the circumference, the air passage of the air inlet 11 comprises a communicated three-section structure, namely a straight section 111 at the air inlet, a bell mouth section 112 at the middle and five air inlets 113 divided at the tail end, the distribution structure of the five air inlets 113 is an air inlet in the middle, the other four air inlets are distributed at the periphery of the air inlet at equal intervals, so that air flow enters the crushing cavity 10 after being uniformly divided, and each air inlet 113 is of a bell-shaped structure. The four air inlet holes positioned at the periphery are all inclined towards the air inlet hole positioned at the center, and the inclination angle is 12-15 degrees.
Through changing the structure of the suction nozzle on the crushing cavity, the inlet duct is divided into five inlet holes after being enlarged, and the five inlet holes are centered, and the four structures are in the peripheral structure, and the inclined structure of the peripheral inlet hole to the inlet hole at the central position accords with the Laval characteristic, so that the air flow speed can be accelerated under the condition of the same air flow, and the crushing efficiency is effectively improved.
In this embodiment, the number of the classifying wheel assemblies 42 is three, and the classifying wheel assemblies 42 are distributed at the periphery of the discharge port at equal intervals, a support plate 43 is fixedly arranged on the classifying cavity 20, and a motor 41 for driving the corresponding classifying wheel assembly 42 is arranged on the support plate 43. The size of the classifying wheel assembly can be reduced by arranging three groups of same classifying wheel assemblies 42, so that the rotating speed of the classifying wheel is increased, and the centrifugal force is improved. In the actual production process, the number of grading wheel assemblies can be increased according to the needs.
The number of the air suction holes 32 is consistent with that of the grading wheel assemblies 42, and the air suction holes 32 are respectively arranged on the side wall of the annular cavity 31 above the discharging position of the grading wheel assemblies 42, so that the air pressure in the annular cavity 31 is more balanced, and the air sealing effect is ensured.
The working process of the utility model is as follows:
the material is put into the crushing cavity 10 from the feeding hole, the air inlet nozzle 11 and the air suction hole 32 are respectively communicated with the air source, so that the material is continuously collided and crushed in the crushing cavity 10, meanwhile, an air-tight structure is formed between the grading wheel assembly and the discharging hole, after the crushed material enters the grading cavity 20 along with air flow, the material with smaller particles enters the grading wheel through the gap between the blades of the grading wheel, the centrifugal force of the material with larger particle size is larger, the material is thrown out of the grading wheel under the action of the centrifugal force before reaching the discharging hole, and the material enters the crushing cavity 10 again to be crushed, and the circular screening is sequentially carried out.
In summary, according to the jet mill with a large sorting particle size range provided by the utility model, the plurality of groups of grading wheel assemblies are arranged in the grading cavity, and the corresponding motors are used for independent transmission, so that the rotating speed of the grading wheel assemblies can be effectively increased, the materials with larger particle sizes are separated into the crushing cavity again for crushing, and meanwhile, the air sealing structure is arranged between the grading wheel assemblies and the discharge hole, so that the crushed materials cannot enter the discharge hole from the connection position of the grading wheel assemblies and the discharge hole, and the screening effect is not influenced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a pneumatic mill that sorting particle diameter scope is big, is including crushing cavity (10) and hierarchical cavity (20) that are linked together, be provided with feed inlet (12) and suction nozzle (11) on crushing cavity (10), its characterized in that: a discharge hole (30) is formed in the grading cavity (20), a multi-component grading wheel assembly (42) is arranged in the grading cavity (20), the discharge part of the grading wheel assembly (42) is communicated with the discharge hole (30), and sealing assemblies are arranged on the grading wheel assembly (42) and the discharge hole (30);
seal assembly is including setting up discharge gate outlying annular cavity (31), be provided with on annular cavity (31) with hierarchical wheel subassembly (42) quantity is unanimous, can rather than the butt joint of ejection of compact department be connected face (34), be provided with the intercommunication on being connected face (34) connecting hole (35) of the ejection of compact department of discharge gate (30) and hierarchical wheel subassembly, be provided with a plurality of through-holes (33) on being connected face (34), just be provided with at least one suction hole (32) on annular cavity (31).
2. The jet mill of claim 1, wherein the mill has a large size range of selected particles, and wherein: the lower end of the crushing cavity (10) is provided with four air inlet nozzles (11) at equal intervals along the circumference, and the air passages of the air inlet nozzles (11) comprise communicated three-section structures, namely a straight section (111) at the air inlet, a horn mouth section (112) in the middle and five air inlet holes (113) with the tail ends divided.
3. The jet mill of claim 2, wherein the mill has a large size range of the selected particle size: the distribution structure of the five air inlet holes (113) is an air inlet hole in the middle, the other four air inlet holes are distributed on the periphery of the air inlet hole at equal intervals, and each air inlet hole (113) is of a horn-shaped structure.
4. A jet mill with a wide range of particle sizes according to claim 3, wherein: the four air inlet holes positioned at the periphery are all inclined towards the air inlet hole positioned at the center, and the inclination angle is 12-15 degrees.
5. The jet mill of claim 4, wherein the mill has a large size range, and the mill is characterized in that: the number of the grading wheel assemblies (42) is three, the grading wheel assemblies are distributed on the periphery of the discharge hole at equal intervals, a support plate (43) is fixedly arranged on the grading cavity (20), and a motor (41) for driving the corresponding grading wheel assembly (42) is arranged on the support plate (43).
6. The jet mill of claim 5, wherein the mill has a large size range of selected particles, and the mill is characterized in that: the number of the air suction holes (32) is consistent with that of the grading wheel assemblies (42), and the air suction holes (32) are respectively arranged on the side wall of the annular cavity (31) above the discharging position of the grading wheel assemblies (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123426581.XU CN216987992U (en) | 2021-12-31 | 2021-12-31 | Jet mill with large sorting particle size range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123426581.XU CN216987992U (en) | 2021-12-31 | 2021-12-31 | Jet mill with large sorting particle size range |
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| Publication Number | Publication Date |
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| CN216987992U true CN216987992U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123426581.XU Active CN216987992U (en) | 2021-12-31 | 2021-12-31 | Jet mill with large sorting particle size range |
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| CN (1) | CN216987992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020633A (en) * | 2023-03-30 | 2023-04-28 | 兮然科技(江苏)股份有限公司 | High-temperature air flow mill |
-
2021
- 2021-12-31 CN CN202123426581.XU patent/CN216987992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020633A (en) * | 2023-03-30 | 2023-04-28 | 兮然科技(江苏)股份有限公司 | High-temperature air flow mill |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 No.1 Chunhui Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Xiran Technology (Jiangsu) Co.,Ltd. Address before: 215000 No.1 Chunhui Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: SUZHOU XI RAN INDUSTRIAL EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 No.1 Chunhui Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Xiran Technology (Jiangsu) Co.,Ltd. Address before: 215000 No.1 Chunhui Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: Xiran Technology (Jiangsu) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |