Disc type jet mill
By designing a closed crushing chamber and an inclined hole feed hole in the disc-type airflow mill, annular airflow and material flow in different directions are formed, which solves the problems of large equipment volume and fixed crushing degree, and achieves a crushing effect with smaller volume and wider application range.
Patent Information
- Application Number
- CN202422569742.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-24
AI Technical Summary
The existing disc-type air flow mill is large in size, has large wall sticking loss, and has a fixed degree of crushing, which cannot adapt to different crushing needs.
A disc-type airflow mill was designed, which adopted a closed crushing chamber structure. Air supply holes and air jet holes were set on the airway ring to form a clockwise or counterclockwise annular airflow. Slanted feed holes were set at the eccentric positions of the bottom plate and the top plate, allowing the material to form opposite or same annular material flows to achieve different crushing effects.
The equipment volume is reduced, the wall sticking loss is reduced, the applicable scope of crushing is expanded, and different degrees of crushing effect can be selected according to needs.
Smart Images
Figure CN223351840U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air flow pulverizers, in particular to a disc type air flow pulverizer. Background Art
[0002] Disc type air flow mill is a type of air flow mill, which is widely used in ultrafine grinding of dry powder materials in the fields of chemical industry, western medicine, traditional Chinese medicine, pesticide, metallurgy, non-metallic minerals, battery positive and negative electrode materials, talc, barite, kaolin, quartz, graphite, flame retardant materials, ceramics, etc.
[0003] Most of the old-fashioned disc-type air flow mills use the outer air distribution plate to distribute air to provide high-pressure and high-speed gas for crushing. They are large in size and have large wall sticking losses. Since the air distribution and feeding methods are fixed, there is only one degree of crushing. When the degree of crushing needs to be changed, it is often not applicable. Utility Model Content
[0004] The purpose of the utility model is to overcome one or more shortcomings in the prior art and provide a disc-type airflow pulverizer.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that the disc-type airflow pulverizer comprises:
[0006] The top surface is provided with a bottom plate with a downwardly protruding lower convex ring;
[0007] The bottom surface is provided with a top plate with an upwardly protruding upper convex ring, and the projections of the upper convex ring and the lower convex ring in the vertical direction coincide with each other;
[0008] An air distribution ring is sandwiched between the upper convex ring and the lower convex ring, wherein the air distribution ring, the bottom plate and the top plate form a closed crushing chamber;
[0009] An airway ring is coaxially arranged on the outer side of the air distribution ring and sandwiched between the bottom plate and the top plate, wherein the airway ring, the air distribution ring, the bottom plate and the top plate form a closed annular airway;
[0010] The airway ring is provided with an air supply hole connecting the external air pipe and the annular airway, and the air distribution ring is provided with an air injection hole connecting the annular airway and the pulverizing chamber. The axis of the air injection hole is parallel to the tangent line of the air distribution ring, and is used to form a clockwise or counterclockwise annular airflow in the pulverizing chamber.
[0011] A discharge hole communicating with the crushing chamber is provided at the center of the bottom plate and / or the top plate, and a feed hole communicating with the crushing chamber is provided at an eccentric position of the bottom plate and the top plate, and the feed hole is an inclined hole. When the material is blown in from the feed hole on the bottom plate, the material forms a first annular material flow in the crushing chamber. When the material is blown in from the feed hole on the top plate, the material forms a second annular material flow in the crushing chamber, and the rotation direction of the second annular material flow is opposite to the rotation direction of the first annular material flow.
[0012] Preferably, there are two air supply holes, and the two air supply holes are symmetrically distributed along the axis of the airway ring.
[0013] Preferably, the distance between the axis of the air jet hole and the upper convex ring and the lower convex ring is equal, and the aperture of the air jet hole is larger on the outside and smaller on the inside.
[0014] Preferably, there are a plurality of the air injection holes and they are evenly distributed around the axis of the valve distribution ring.
[0015] Preferably, a first discharge hole connected to the crushing chamber is provided at the center of the bottom plate, and a second discharge hole connected to the crushing chamber is provided at the center of the top plate. A discharge pipe is connected to one of the first discharge hole and the second discharge hole, and a plug is connected to the other. The discharge pipe and the plug can be installed interchangeably.
[0016] Preferably, the feed hole opened at the eccentric position of the bottom plate is the first feed hole, and the feed hole opened at the eccentric position of the top plate is the second feed hole. A feed pipe is inserted into one of the first feed hole and the second feed hole, and a blocking column is inserted into the other. The feed pipe and the blocking column can be installed interchangeably.
[0017] Further preferably, the first feed hole and the second feed hole are both connected to a mounting sleeve, and the feed pipe and the blocking column are inserted into and locked on the mounting sleeve.
[0018] Further preferably, an upper partition and a lower partition are provided in the crushing chamber, the upper partition is locked on the bottom surface of the top plate and is sealed with the lower end of the mounting sleeve corresponding to the first feed hole, and the lower partition is locked on the top surface of the bottom plate and is sealed with the lower end of the mounting sleeve corresponding to the second feed hole.
[0019] Further preferably, the surfaces of the upper partition plate and the lower partition plate facing each other are provided with ceramic wear-resistant disks, a gap is provided between the ceramic wear-resistant disks on the upper partition plate and the lower partition plate, and the opening of the jet hole on the inner wall of the valve ring is located in the gap.
[0020] Preferably, the edges of the top plate and the bottom plate are locked by a bolt locking structure.
[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0022] The utility model provides a disc-type airflow crusher, comprising: a bottom plate with a lower convex ring protruding downward on the top surface, a top plate with an upper convex ring protruding upward on the bottom surface, a distribution ring sandwiched between the upper convex ring and the lower convex ring, an airway ring coaxially arranged on the outside of the distribution ring and sandwiched between the bottom plate and the top plate, the projections of the upper convex ring and the lower convex ring in the up and down directions coincide with each other, the distribution ring, the bottom plate and the top plate form a closed crushing chamber, and a closed annular airway is formed between the airway ring, the distribution ring, the bottom plate and the top plate; an air supply hole connecting the external air pipe and the annular airway is provided on the airway ring, and an air jet hole connecting the annular airway and the crushing chamber is provided on the air distribution ring, so that the axis of the air jet hole is parallel to the tangent of the distribution ring, so that a clockwise or counterclockwise annular airflow can be formed in the crushing chamber, and the method of setting an air distribution disk is abandoned, so that the disc The air flow mill has a smaller volume and can greatly reduce the loss of wall sticking; by arranging a discharge hole connected to the crushing chamber at the center of the bottom plate and / or the top plate, and arranging a feed hole connected to the crushing chamber at the eccentric position of the bottom plate and the top plate, so that the feed hole is an inclined hole, when the material is blown into the feed hole on the bottom plate, the material forms a first annular material flow in the crushing chamber, and when the material is blown into the feed hole on the top plate, the material forms a second annular material flow in the crushing chamber. By making the rotation direction of the second annular material flow opposite to the rotation direction of the first annular material flow, different feed holes can be selected according to demand (select one of the feed holes for feeding, or select two feed holes for feeding at the same time) to feed, thereby forming an annular material flow that is the same as or opposite to the annular airflow, achieving different degrees of crushing effects, and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the utility model.
[0024] Figure 2 yes Figure 1 Schematic diagram of the main view.
[0025] Figure 3 yes Figure 2 Schematic cross-sectional view in the AA direction.
[0026] Figure 4 yes Figure 2 Schematic cross-sectional view in the BB direction.
[0027] Figure 5 yes Figure 2 Schematic top view of .
[0028] Figure 6 yes Figure 5 Schematic cross-sectional view in the CC direction.
[0029] Figure 7 yes Figure 5 Schematic cross-sectional view in the DD direction.
[0030] Figure 8 yes Figure 2 Schematic diagram of the top view.
[0031] Figure 9 yes Figure 8 Schematic cross-sectional view in the EE direction.
[0032] Figure 10 yes Figure 8 Schematic cross-sectional view in the FF direction.
[0033] Among them: 10. Bottom plate; 11. Lower convex ring; 12. First discharge hole; 121. Plug; 13. First feed hole; 131. Plug column; 20. Top plate; 21. Upper convex ring; 22. Second discharge hole; 221. Discharge pipe; 23. Second feed hole; 231. Feed pipe; 30. Gas distribution ring; 31. Jet hole; 40. Airway ring; 41. Air supply hole; 50. Crushing chamber; 51. Upper partition; 52. Lower partition; 60. Annular airway; 70. Mounting sleeve; 80. Ceramic wear-resistant disc; 90. Bolt locking structure. DETAILED DESCRIPTION
[0034] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0035] like Figures 1 to 10As shown, the disc-type airflow mill provided by the utility model comprises a bottom plate 10 with a lower convex ring 11 protruding downward on the top surface, a top plate 20 with an upper convex ring 21 protruding upward on the bottom surface, a gas distribution ring 30 sandwiched between the upper convex ring 21 and the lower convex ring 11, and an airway ring 40 coaxially arranged on the outside of the gas distribution ring 30 and sandwiched between the bottom plate 10 and the top plate 20. The upper convex ring 21 is coaxial with the top plate 20, the lower convex ring 11 is coaxial with the bottom plate 10, and the projections of the upper convex ring 21 and the lower convex ring 11 in the vertical direction coincide with each other. 30, the bottom plate 10, the top plate 20 form a closed pulverizing chamber 50, the airway ring 40, the air distribution ring 30, the bottom plate 10 and the top plate 20 form a closed annular airway 60, the airway ring 40 is provided with an air supply hole 41 connecting the external air pipe and the annular airway 60, the air distribution ring 30 is provided with an air injection hole 31 connecting the annular airway 60 and the pulverizing chamber 50, the axis of the air injection hole 31 is parallel to the tangent of the air distribution ring 30, and is used to form a clockwise or counterclockwise annular airflow in the pulverizing chamber 50; the center of the bottom plate 10 is provided with a hole 41 that is connected to the pulverizing chamber 50 0 is connected, the center of the top plate 20 is provided with a second discharge hole 22 connected to the crushing chamber 50, the second discharge hole 22 is connected to the discharge pipe 221, the first discharge hole 12 is connected to the plug 121, the discharge pipe 221 and the plug 121 can be installed interchangeably; the eccentric positions of the bottom plate 10 and the top plate 20 are provided with feed holes connected to the crushing chamber 50, the feed holes are inclined holes, the feed hole opened at the eccentric position of the bottom plate 10 is the first feed hole 13, and the feed hole opened at the eccentric position of the top plate 20 is the second feed hole Hole 23, when the material is blown in from the first feed hole 13, the material forms a first annular material flow in the crushing chamber 50, and when the material is blown in from the second feed hole 23, the material forms a second annular material flow in the crushing chamber 50. The rotation direction of the second annular material flow is opposite to the rotation direction of the first annular material flow. Specifically in this embodiment, the second feed hole 23 is connected with a feed pipe 231 for feeding, and the first feed hole 13 is connected with a blocking column 131. The feed pipe 231 and the blocking column 131 can be installed interchangeably so as to be adjusted according to needs.
[0036] The advantage of this setting is that it is possible to choose to feed through the first feed hole, the second feed hole, or the first and second feed holes together according to demand, thereby forming an annular material flow that is the same as or opposite to the annular airflow, achieving different degrees of crushing effects, and having a wider range of applications.
[0037] In order to improve the uniformity of crushing, in this embodiment, there are two air supply holes 41, which are symmetrically distributed along the axis of the airway ring 40. At the same time, the axis of the jet hole 31 is equidistant from the upper convex ring 21 and the lower convex ring 11. The aperture of the jet hole 31 is larger on the outside and smaller on the inside, and its cross-section is in the shape of an injection needle. There are six jet holes 31 and they are evenly distributed around the axis of the gas distribution ring 30.
[0038] In this embodiment, the first feed hole 13 and the second feed hole 23 are both connected to a mounting sleeve 70, and the feed pipe 231 and the plug 131 are inserted and locked on the mounting sleeve 70, so that the feed pipe 231 and the plug 131 can be easily plugged in and fixed. The above-mentioned locking is achieved by threaded connection.
[0039] To facilitate the fixation of the mounting sleeve 70, in this embodiment, an upper partition 51 and a lower partition 52 are provided in the crushing chamber 50. The upper partition 51 is locked on the bottom surface of the top plate 20 and is sealed with the lower end of the mounting sleeve 70 corresponding to the first feed hole 13. The lower partition 52 is locked on the top surface of the bottom plate 10 and is sealed with the lower end of the mounting sleeve 70 corresponding to the second feed hole 23.
[0040] In order to improve the cleanliness of the crushing, in this embodiment, the surfaces of the upper partition 51 and the lower partition 52 facing each other are provided with ceramic wear-resistant disks 80. There is a gap between the ceramic wear-resistant disks 80 on the upper partition 51 and the lower partition 52, and the opening of the jet hole 31 on the inner wall of the valve ring 30 is located in the gap. It should be noted that the ceramic wear-resistant disk 80 must be provided with through holes corresponding to each feed hole and each discharge hole.
[0041] In this embodiment, the edges of the top plate 20 and the bottom plate 10 are locked by a plurality of bolt locking structures 90 evenly distributed around the axis of the top plate 20 and the bottom plate 10 .
[0042] In this embodiment, the feeding principle of the feed pipe 231 is the Venturi tube principle, and the angle between the axis of the mounting sleeve 70 and the horizontal plane is 25°, so that the feed pipe 231 also maintains this angle, thereby achieving a better feeding effect. When viewed from above, the direction of the feed pipe 231 is clockwise, while the direction of the jet hole 31 is counterclockwise. The annular material flow blown in by the feed pipe 231 is opposite to the rotation direction of the annular airflow formed by the jet hole 31, and a finer crushing effect can be obtained. When the material does not need to be crushed too finely, the feed and discharge pipes, the blocking column and the plug can be removed, and the top plate, bottom plate, airway ring and gas distribution ring can be turned over to form a whole. Then the feed and discharge pipes, the blocking column and the plug can be installed, so that the annular material flow and the annular airflow have the same rotation direction, thereby obtaining a coarser crushing effect, which can meet the needs of different crushing effects.
[0043] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.
Claims
1. A disc-type airflow mill, comprising: The top surface is provided with a bottom plate with a downwardly protruding lower convex ring; The bottom surface is provided with a top plate with an upwardly protruding upper convex ring, and the projections of the upper convex ring and the lower convex ring in the vertical direction coincide with each other; An air distribution ring is sandwiched between the upper convex ring and the lower convex ring, wherein the air distribution ring, the bottom plate and the top plate form a closed crushing chamber; An airway ring is coaxially arranged on the outer side of the air distribution ring and sandwiched between the bottom plate and the top plate, wherein the airway ring, the air distribution ring, the bottom plate and the top plate form a closed annular airway; Its characteristics are: The airway ring is provided with an air supply hole connecting the external air pipe and the annular airway, and the air distribution ring is provided with an air injection hole connecting the annular airway and the pulverizing chamber. The axis of the air injection hole is parallel to the tangent line of the air distribution ring, and is used to form a clockwise or counterclockwise annular airflow in the pulverizing chamber. A discharge hole communicating with the crushing chamber is provided at the center of the bottom plate and / or the top plate, and a feed hole communicating with the crushing chamber is provided at an eccentric position of the bottom plate and the top plate, and the feed hole is an inclined hole. When the material is blown in from the feed hole on the bottom plate, the material forms a first annular material flow in the crushing chamber. When the material is blown in from the feed hole on the top plate, the material forms a second annular material flow in the crushing chamber, and the rotation direction of the second annular material flow is opposite to the rotation direction of the first annular material flow.
2. The disc-type airflow mill according to claim 1, characterized in that: There are two air supply holes, and the two air supply holes are symmetrically distributed along the axis of the airway ring.
3. The disc-type airflow mill according to claim 1, characterized in that: The distance between the axis of the air jet hole and the upper convex ring and the lower convex ring is equal, and the aperture of the air jet hole is larger on the outside and smaller on the inside.
4. The disc-type airflow mill according to claim 1, characterized in that: There are a plurality of injection holes which are evenly distributed around the axis of the valve distribution ring.
5. The disc-type airflow mill according to claim 1, characterized in that: A first discharge hole communicating with the crushing chamber is provided at the center of the bottom plate, and a second discharge hole communicating with the crushing chamber is provided at the center of the top plate. A discharge pipe is connected to one of the first discharge hole and the second discharge hole, and a plug is connected to the other. The discharge pipe and the plug can be installed interchangeably.
6. The disc-type airflow mill according to claim 1, characterized in that: The feed hole opened at the eccentric position of the bottom plate is the first feed hole, and the feed hole opened at the eccentric position of the top plate is the second feed hole. A feed pipe is inserted into one of the first feed hole and the second feed hole is inserted into the other one. The feed pipe and the blocking column can be installed interchangeably.
7. The disc-type airflow mill according to claim 6, characterized in that: The first feed hole and the second feed hole are both connected with a mounting sleeve, and the feed pipe and the blocking column are inserted into and locked on the mounting sleeve.
8. The disc-type airflow mill according to claim 7, characterized in that: An upper partition and a lower partition are provided in the crushing chamber. The upper partition is locked to the bottom surface of the top plate and is sealedly connected to the lower end of the mounting sleeve corresponding to the first feed hole. The lower partition is locked to the top surface of the bottom plate and is sealedly connected to the lower end of the mounting sleeve corresponding to the second feed hole.
9. The disc-type airflow mill according to claim 8, characterized in that: The surfaces of the upper and lower partitions facing each other are both provided with ceramic wear-resistant disks. There is a gap between the ceramic wear-resistant disks on the upper and lower partitions, and the opening of the injection hole on the inner wall of the valve ring is located in the gap.
10. The disc-type airflow mill according to claim 1, characterized in that: The edges of the top plate and the bottom plate are locked by a bolt locking structure.