Flat type small jet mill

Abstract

The utility model provides a flat type small jet mill which comprises a base, a grinding disc, a feeding pipe and a discharging pipe, the grinding disc comprises an upper cover, a lower cover, an air distribution ring and an air channel ring, a first annular flange is arranged on the lower surface of the upper cover, and a second annular flange corresponding to the first annular flange is arranged on the upper surface of the lower cover. The gas distribution ring is clamped between the first annular flange and the second annular flange, the gas distribution ring, the first annular flange, the second annular flange, the upper cover and the lower cover can define a closed smashing cavity, and the gas channel ring is arranged on the outer side of the gas distribution ring and clamped between the upper cover and the lower cover, so that the gas channel ring, the gas distribution ring, the upper cover and the lower cover can define a closed annular gas channel. The air distribution ring is provided with a spray hole communicated with the annular air channel and the crushing cavity, the air channel ring is provided with a connecting hole connected with an external air pipe, the discharging pipe vertically penetrates through the center of the upper cover, the feeding pipe penetrates through the upper cover and is located on one side of the discharging pipe, and the air ring is internally arranged, so that the structure is exquisite and small, the attractiveness is good, and the wall sticking loss is small; and the crushing operation of a small amount of valuable materials can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow pulverizers, in particular to a flat small-sized air flow pulverizer. Background Art

[0002] Flat air flow mill is a type of air flow mill, also known as disc mill. It is widely used in ultra-fine 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 traditional disc-type airflow mills are medium or large. For example, Chinese patent CN220991173U discloses a medium-sized disc-type airflow mill, which distributes air through an outer air distribution plate to provide high-pressure and high-speed gas for pulverization. It is large in size, has poor aesthetics, and has large wall sticking losses. Each batch requires more than 10kg of material to be pulverized into finished products. It is not suitable for pulverizing precious and small amounts (about 100g per batch) of materials. Utility Model Content

[0004] The purpose of the utility model is to overcome one or more shortcomings in the prior art and to provide a flat small airflow pulverizer.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that a flat small air flow pulverizer includes a base, a crushing disk fixed on the base, a feed pipe, and a discharge pipe; the crushing disk includes an upper cover, a lower cover, an air distribution ring and an airway ring, the lower surface of the upper cover is provided with a first annular flange extending downward, the upper surface of the lower cover is provided with a second annular flange extending upward, the second annular flange is arranged corresponding to the first annular flange, the air distribution ring is clamped between the first annular flange and the second annular flange, so that the air distribution ring, the first annular flange, the second annular flange, the upper cover and the lower cover are enclosed and along A crushing chamber extending in the horizontal direction, the airway ring is arranged on the outside of the air distribution ring and clamped between the upper cover and the lower cover, so that the airway ring, the air distribution ring, the upper cover and the lower cover form a closed annular airway, the air distribution ring is provided with a spray hole radially penetrating the air distribution ring, the spray hole connects the annular airway and the crushing chamber, the airway ring is provided with a connecting hole for connecting to an external air pipe, the connecting hole is connected to the annular airway, the discharge pipe vertically penetrates the center of the upper cover and is connected to the crushing chamber, the feed pipe penetrates the upper cover and is connected to the crushing chamber, and the feed pipe is located on one side of the discharge pipe.

[0006] Preferably, the upper cavity of the pulverizing chamber is in the shape of a truncated cone with a small upper portion and a large lower portion, the middle cavity of the pulverizing chamber is in the shape of a flat cylinder, and the lower cavity of the pulverizing chamber is in the shape of a truncated cone with a large upper portion and a small lower portion.

[0007] Further preferably, the lower end of the discharge pipe extends into the upper cavity of the pulverizing chamber and the middle cavity of the pulverizing chamber, and the lower end of the feed pipe extends into the upper cavity of the pulverizing chamber.

[0008] Preferably, the feed pipe is arranged at an angle, and the angle between the axis of the feed pipe and the horizontal plane is 20 to 30 degrees.

[0009] Further preferably, a feeding pipe is connected to the middle of the feed pipe, the feeding pipe is located outside the crushing disk, and the upper end of the feed pipe is also connected to a feeding nozzle for blowing the material flowing out of the feeding pipe into the crushing chamber.

[0010] Preferably, there are a plurality of the spray holes, and the plurality of the spray holes are evenly distributed along the axis of the valve distribution ring.

[0011] Further preferably, all the spray holes are inclined at the same angle toward the tangential direction of the gas distribution ring, so as to form a clockwise or counterclockwise annular airflow in the pulverizing chamber.

[0012] Further preferably, the diameter of the nozzle hole is larger on the outside and smaller on the inside.

[0013] Preferably, the base includes an upper ring body, a lower ring body and a supporting rib, the upper ring body is embedded in the groove on the lower surface of the lower cover, the lower ring body is coaxially arranged with the upper ring body and the outer diameter of the lower ring body is larger than the outer diameter of the upper ring body, the supporting ribs are inclined and there are multiple supporting ribs, and the multiple supporting ribs are evenly distributed around the axis of the upper ring body, the upper end of the supporting rib is connected to the upper ring body, and the lower end of the supporting rib is connected to the lower ring body.

[0014] Further preferably, the base further includes a C-shaped clamp, which is provided in plurality and corresponds one to one with the supporting ridges, one end of the C-shaped clamp is rotatably connected to the middle of the supporting ridge, and the other end is located above the upper cover and is threadedly connected with a locking bolt, and when the locking bolt is tightened, the lower end of the locking bolt presses against the upper cover to fix the crushing disc on the base.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The utility model provides a flat small air flow crusher, comprising a base, a crushing disc, a feed pipe and a discharge pipe. The crushing disc includes an upper cover, a lower cover, an air distribution ring and an air duct ring, a first annular flange is provided on the lower surface of the upper cover, and a second annular flange corresponding thereto is provided on the upper surface of the lower cover, and the air distribution ring is clamped between the first and second annular flanges, so that the air distribution ring, the first and second annular flanges and the upper and lower covers can form a closed crushing chamber, and the air duct ring is provided outside the air distribution ring and clamped between the upper and lower covers, so that the air duct ring, the air distribution ring, the upper and lower covers can form a closed annular air duct, and then a spray hole connecting the annular air duct and the crushing chamber is provided on the air distribution ring, and a connecting hole for connecting to an external air pipe is provided on the air duct ring, so that the discharge pipe vertically passes through the center of the upper cover, and the feed pipe passes through the upper cover and is located on one side of the discharge pipe. The air ring is built-in, the structure is exquisite and compact, the aesthetics is good, and the wall adhesion loss is small, which can meet the crushing operation of precious and small amounts of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a main schematic diagram of a preferred embodiment of the utility model.

[0018] Figure 2 yes Figure 1 Schematic top view of .

[0019] Figure 3 yes Figure 1 3D schematic diagram of .

[0020] Figure 4 yes Figure 1 Schematic cross-sectional view in the AA direction.

[0021] Figure 5 yes Figure 2 The cross-sectional diagram in the middle BB direction has the view angle adjusted for easier observation.

[0022] Figure 6 yes Figure 2 The cross-sectional diagram in the CC direction is shown. The viewing angle has been adjusted for easier observation.

[0023] Figure 7 yes Figure 2 Schematic cross-sectional view in the DD direction.

[0024] Among them: 10. Base; 11. Upper ring body; 12. Lower ring body; 13. Support rib; 14. C-shaped clamp; 15. Locking bolt; 20. Crushing disc; 21. Upper cover; 211. First annular flange; 22. Lower cover; 221. Second annular flange; 23. Gas distribution ring; 231. Spray hole; 232. First plate body; 233. Second plate body; 24. Airway ring; 241. Connecting hole; 25. Crushing chamber; 26. Annular airway; 30. Feed pipe; 31. Feeding pipe; 32. Feed nozzle; 40. Discharge pipe. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] The up and down directions described in the utility model are Figure 1 The up and down directions in .

[0027] like Figures 1 to 7 As shown, the flat small air flow pulverizer provided by the utility model includes a base 10, a crushing disc 20 fixed on the base 10, a feed pipe 30, and a discharge pipe 40; the crushing disc 20 includes an upper cover 21, a lower cover 22, an air distribution ring 23 and an airway ring 24, the lower surface of the upper cover 21 is provided with a first annular flange 211 extending downward, the upper surface of the lower cover 22 is provided with a second annular flange 221 extending upward, the second annular flange 221 is arranged corresponding to the first annular flange 211, the air distribution ring 23 is clamped between the first annular flange 221 and the second annular flange 221, so that the air distribution ring 23, the first annular flange 211, the second annular flange 221, the upper cover 21 and the lower cover 22 form a closed And the crushing chamber 25 extends in the horizontal direction, the airway ring 24 is arranged on the outside of the air distribution ring 23 and clamped between the upper cover 21 and the lower cover 22, so that the airway ring 24, the air distribution ring 23, the upper cover 21 and the lower cover 22 form a closed annular airway 26, and the air distribution ring 23 is provided with a spray hole 231 that radially penetrates the air distribution ring 23, and the spray hole 231 connects the annular airway 26 and the crushing chamber 25. The airway ring 24 is provided with a connecting hole 241 for connecting to the external air pipe, and the connecting hole 241 is connected to the annular airway 26. The discharge pipe 40 vertically penetrates the center of the upper cover 21 and is connected to the crushing chamber 25. The feed pipe 30 penetrates the upper cover 21 and is connected to the crushing chamber 25. The feed pipe 30 is located on one side of the discharge pipe 40.

[0028] The advantage of this arrangement is that after the material enters the crushing chamber through the feed pipe, the external air pipe connected to the connecting hole can be used to spray air into the crushing chamber through the annular air duct and the nozzle, so that the material rotates in the crushing chamber and achieves a crushing effect through mutual collision. During crushing, due to the action of centrifugal force, the debris with lighter weight after crushing is located in the middle, which can be discharged upward through the discharge pipe to achieve the effect of airflow crushing. The flat small airflow crusher has a built-in air ring, a delicate and compact structure, good aesthetics, and low wall adhesion loss, which can meet the crushing operations of precious and small quantities of materials.

[0029] To facilitate positioning, in this embodiment, the cross-section of the valve ring 23 is T-shaped, and it has a first plate body 232 extending in the vertical direction and a second plate body 233 extending in the horizontal direction. The second plate body 233 is vertically connected to the first plate body 232, and the spray hole 231 is opened on the second plate body 233. The first plate body 232 is located on the outside of the second plate body 233 and is pressed against the outer wall surface of the first annular flange 211 and the second annular flange 221 to achieve positioning.

[0030] In this embodiment, the upper cavity of the crushing chamber 25 is in the shape of a truncated cone with a small top and a large bottom, the middle cavity of the crushing chamber 25 is in the shape of a flat cylinder, and the lower cavity of the crushing chamber 25 is in the shape of a truncated cone with a large top and a small bottom, so as to gather airflow and improve the crushing effect.

[0031] In order to further improve the crushing effect, in this embodiment, the lower end of the discharge pipe 40 extends into the upper cavity of the crushing chamber 25 and the middle cavity of the crushing chamber 25, and the lower end of the feed pipe 30 extends into the upper cavity of the crushing chamber 25. By extending the end of the discharge pipe 40 and the feed pipe 30 into the crushing chamber 25, the impact effect of the material can be enhanced, thereby improving the crushing effect.

[0032] Furthermore, the feed pipe 30 is tilted, and the angle between the axis of the feed pipe 30 and the horizontal plane is preferably 20 to 30 degrees. Specifically in this embodiment, the angle is 25 degrees.

[0033] Furthermore, the aperture of the spray hole 231 is larger on the outside and smaller on the inside. There are six spray holes 231 , which are evenly distributed along the axis of the valve ring 23 . All spray holes 231 are tilted at the same angle toward the tangent direction of the valve ring 23 , so as to form a clockwise or counterclockwise annular airflow in the crushing chamber 25 .

[0034] In order to improve the smoothness of feeding, in this embodiment, a feeding pipe 31 is connected to the middle of the feeding pipe 30, and the feeding pipe 31 is located on the outside of the crushing disk 20. The upper end of the feeding pipe 30 is also connected to a feeding nozzle 32 for blowing the material flowing out of the feeding pipe 31 into the crushing chamber.

[0035] In order to improve the supporting stability of the crushing disc 20, in this embodiment, the base 10 includes an upper ring body 11, a lower ring body 12 and a supporting rib 13. The upper ring body 11 is embedded in the groove on the lower surface of the lower cover 22. The lower ring body 12 is coaxially arranged with the upper ring body 11 and the outer diameter of the lower ring body 12 is larger than the outer diameter of the upper ring body 11. The supporting ribs 13 are arranged at an angle and there are four of them. The four supporting ribs 13 are evenly distributed around the axis of the upper ring body 11. The upper end of the supporting rib 13 is connected to the upper ring body 11, and the lower end of the supporting rib 13 is connected to the lower ring body 12.

[0036] In order to improve the clamping effect of the upper cover 21 and the lower cover 22, in this embodiment, the base 10 further includes a C-shaped clamping jaw 14. There are four C-shaped clamping jaws 14 and they are arranged in a one-to-one correspondence with the four supporting ridges 13. One end of the C-shaped clamping jaw 14 is rotatably connected to the middle part of the supporting ridge 13, and the other end is located above the upper cover 21 and is threadedly connected to the locking bolt 15. When the locking bolt 15 is tightened, the lower end of the locking bolt 15 presses against the upper cover 21, so that the upper cover 21 and the lower cover 22 are clamped, and the crushing disc 20 is fixed to the base 10.

[0037] 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 small flat airflow pulverizer comprising a base, a pulverizing disc fixed to the base, a feed pipe, and a discharge pipe; Its characteristics are: The pulverizing disk includes an upper cover, a lower cover, a gas distribution ring and an airway ring. The lower surface of the upper cover is provided with a first annular flange extending downward, and the upper surface of the lower cover is provided with a second annular flange extending upward. The second annular flange is arranged corresponding to the first annular flange. The gas distribution ring is clamped between the first annular flange and the second annular flange, so that the gas distribution ring, the first annular flange, the second annular flange, the upper cover and the lower cover form a closed pulverizing chamber extending in the horizontal direction. The airway ring is arranged on the outside of the gas distribution ring and clamped Between the upper cover and the lower cover, the airway ring, the air distribution ring, the upper cover and the lower cover form a closed annular airway, the air distribution ring is provided with a spray hole radially penetrating the air distribution ring, the spray hole is connected to the annular airway and the crushing chamber, the airway ring is provided with a connecting hole for connecting to an external air pipe, the connecting hole is connected to the annular airway, the discharge pipe vertically penetrates the center of the upper cover and is connected to the crushing chamber, the feed pipe penetrates the upper cover and is connected to the crushing chamber, and the feed pipe is located on one side of the discharge pipe.

2. The flat small airflow pulverizer according to claim 1, characterized in that: The upper cavity of the pulverizing chamber is in the shape of a truncated cone with a small upper portion and a large lower portion, the middle cavity of the pulverizing chamber is in the shape of a flat cylinder, and the lower cavity of the pulverizing chamber is in the shape of a truncated cone with a large upper portion and a small lower portion.

3. The flat small airflow pulverizer according to claim 2, characterized in that: The lower end of the discharge pipe extends into the upper cavity of the pulverizing chamber and the middle cavity of the pulverizing chamber, and the lower end of the feed pipe extends into the upper cavity of the pulverizing chamber.

4. The flat small airflow pulverizer according to claim 1, characterized in that: The feed pipe is tilted, and the angle between the axis of the feed pipe and the horizontal plane is 20 to 30 degrees.

5. The flat small airflow pulverizer according to claim 4, characterized in that: A feeding pipe is connected to the middle of the feeding pipe, and the feeding pipe is located outside the crushing disk. The upper end of the feeding pipe is also connected to a feeding nozzle for blowing the material flowing out of the feeding pipe into the crushing chamber.

6. The flat small airflow pulverizer according to claim 1, characterized in that: There are a plurality of spray holes, and the plurality of spray holes are evenly distributed along the axis of the valve distribution ring.

7. The flat small airflow pulverizer according to claim 6, characterized in that: All the spray holes are tilted at the same angle toward the tangential direction of the gas distribution ring, so as to form a clockwise or counterclockwise annular airflow in the pulverizing chamber.

8. The flat small airflow pulverizer according to claim 6, characterized in that: The diameter of the spray hole is larger on the outside and smaller on the inside.

9. The flat small airflow pulverizer according to claim 1, characterized in that: The base includes an upper ring body, a lower ring body and a supporting rib. The upper ring body is embedded in the groove on the lower surface of the lower cover. The lower ring body is coaxially arranged with the upper ring body and the outer diameter of the lower ring body is larger than the outer diameter of the upper ring body. The supporting ribs are arranged at an angle and there are multiple supporting ribs. The multiple supporting ribs are evenly distributed around the axis of the upper ring body. The upper end of the supporting rib is connected to the upper ring body, and the lower end of the supporting rib is connected to the lower ring body.

10. The flat small airflow pulverizer according to claim 9, characterized in that: The base also includes a C-shaped clamping jaw, which is provided in multiple numbers and corresponds to the supporting ridges one by one. One end of the C-shaped clamping jaw is rotatably connected to the middle of the supporting ridge, and the other end is located above the upper cover and is threadedly connected to a locking bolt. When the locking bolt is tightened, the lower end of the locking bolt presses against the upper cover to fix the crushing disk on the base.

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