A powder particle size classification device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-14
Smart Images
Figure CN224486758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust particle size classification technology, and in particular to a powder particle size classification device. Background Technology
[0002] Powder is a dispersion system composed of a large number of solid particles and the voids between the particles. It has a large specific surface area, so powder has a good adsorption effect. In the field of catalysts, the large specific surface area of powder catalysts gives them higher chemical reactivity and can catalyze chemical reactions more efficiently. However, the application of powder is affected by its particle size. If the particle size is too coarse, the specific surface area will be reduced, and if it is too fine, agglomeration will occur. Therefore, higher requirements are placed on powder particle size classification devices.
[0003] The use of dust is affected by its specific surface area, so it needs to be graded before use. Due to its structural limitations, the existing powder particle size classification device has many inconveniences in adjusting the size of the powder, resulting in the waste of raw materials. Since the size of the classification device cannot be adjusted, it is difficult to finely screen these mixed powders and rationally allocate and utilize powders of different particle sizes. Furthermore, a secondary classification of the powder after the initial separation is required, which leads to higher energy consumption, equipment wear and tear, and labor costs, thus increasing the subsequent processing costs. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a powder particle size classification device, which aims to improve the problem that the classification size cannot be adjusted in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a powder particle size classification device, comprising an upper shell, a transmission rod rotatably connected to the inner wall of the upper shell, a dispersing disc fixedly connected to the bottom end of the transmission rod, a fixing block fixedly connected to the top right side of the upper shell, a slider slidably connected to the inner wall of the fixing block, a rack fixedly connected to the outer wall of the slider, multiple support rods fixedly connected to the top of the upper shell near the edge, a first rotating rod rotatably connected to adjacent sides of the multiple support rods, a first gear fixedly connected to the left end of the outer wall of the first rotating rod, a support plate fixedly connected to the top of the slider, a first motor fixedly connected to the top of the support plate, a driving gear fixedly connected to the output end of the first motor, a first driven wheel fixedly connected to the top of the transmission rod, a second driven wheel fixedly connected to the outer wall of the transmission rod near the edge, a discharge port on the left side of the upper shell, a lower shell threadedly connected to the bottom of the upper shell, an air inlet on the outer wall of the lower shell, and a pretreatment structure fixedly connected to the front side of the upper shell, the pretreatment structure being used for pretreatment before dust classification.
[0006] As a further description of the above technical solution:
[0007] The pretreatment structure includes a motor base, the outer wall of which is fixedly connected to the front side of the outer wall of the upper shell. A second motor is fixedly connected to the center of the top surface of the motor base. A connecting rod is fixedly connected to the front top of the motor base. A third rotating rod is fixedly connected to the output end of the second motor. A second gear is fixedly connected to the front outer wall of the third rotating rod. A second rotating rod is rotatably connected to the outer wall of the connecting rod. Multiple cutters are fixedly connected to the outer wall of the second rotating rod. A third gear is fixedly connected to the center of the outer wall of the second rotating rod. A feeding pipe is rotatably connected to the center of the outer wall of the third rotating rod. A leak-proof shell is fixedly connected to the outer wall of the feeding pipe. An inlet shell is fixedly connected to the top of the leak-proof shell. A filter screen is fixedly connected to the inner wall of the inlet shell. The rear side of the filter screen is connected to the inlet pipe. The top end of the inlet pipe is connected to an inlet funnel. A feeding ring is fixedly connected to the outer wall of the third rotating rod near its edge.
[0008] As a further description of the above technical solution:
[0009] A protective cover is fixedly connected to the top of the upper shell, and a controller is fixedly connected to the right side of the outer wall of the upper shell.
[0010] As a further description of the above technical solution:
[0011] Multiple bottom posts are fixedly connected to the bottom edge of the lower shell, and foot pads are fixedly connected to the bottom of each bottom post.
[0012] As a further description of the above technical solution:
[0013] A collection box is connected to the middle of the bottom end of the lower shell, and a retaining ring is fixedly connected to the bottom of the upper shell.
[0014] As a further description of the above technical solution:
[0015] A locking block is fixedly connected to the middle of the outer wall of the first rotating rod, and a locking groove is opened on the outer wall of the support rod.
[0016] As a further description of the above technical solution:
[0017] A handle is fixedly connected to the top of the first rotating rod, and multiple rubber rings are fixedly connected to the outer wall of the handle.
[0018] As a further description of the above technical solution:
[0019] The inner wall of the first gear meshes with the inner wall of the rack, and the inner wall of the driving gear meshes with the inner wall of the second driven gear.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by starting the first motor, the dispersion disc is driven to rotate, causing the powder on the dispersion disc to rotate and be uniformly dispersed outward under the action of centrifugal force. Tangential airflow is delivered through the air inlet, forming an upward air column. The particles are classified according to the different gravities they experience. When it is necessary to adjust the size of the classification, the handle can be rotated to drive the drive gear to move upward, so that the drive gear meshes with the first driven wheel, changing the rotation speed of the dispersion disc, thereby achieving the purpose of adjusting the size of the powder classification and reducing the subsequent classification cost.
[0022] 2. In this utility model, the pretreatment structure serves as a pretreatment for powder before grading. Untreated powder is poured into the feed funnel and enters the filter screen. The second motor drives the cutter to rotate, which initially agitates and disperses the powder. After treatment, the small powder particles enter the conveying pipe. Under the rotation of the second motor, the conveying ring rotates simultaneously, conveying the powder in the conveying pipe to the dispersing disc, thus achieving the purpose of pretreatment and improving the subsequent grading accuracy. Attached Figure Description
[0023] Figure 1 This is a front perspective view of a powder particle size classification device proposed in this utility model;
[0024] Figure 2 This is a partial structural breakdown of the upper shell of a powder particle size classification device proposed in this utility model;
[0025] Figure 3 This is a partial structural diagram of the transmission rod of a powder particle size classification device proposed in this utility model;
[0026] Figure 4 This is a partial structural diagram of the first motor of a powder particle size classification device proposed in this utility model;
[0027] Figure 5 This is a partial structural diagram of the second motor of a powder particle size classification device proposed in this utility model;
[0028] Figure 6 This is a partial structural diagram of the feeding ring of a powder particle size classification device proposed in this utility model;
[0029] Figure 7 This is a partial structural diagram of the cutter of a powder particle size classification device proposed in this utility model;
[0030] Figure 8 This is a partial structural diagram of the dispersion disc of a powder particle size classification device proposed in this utility model.
[0031] Legend:
[0032] 1. Upper shell; 2. Pre-treatment structure; 201. Motor base; 202. Second motor; 203. Connecting rod; 204. Feed funnel; 205. Feed pipe; 206. Second rotating rod; 207. Second gear; 208. Third gear; 209. Third rotating rod; 210. Feed shell; 211. Filter screen; 212. Cutter; 213. Leak-proof shell; 214. Feed pipe; 215. Feed ring; 3. Transmission rod; 4. Fixing block; 5. Sliding block; 6. Rack; 7. First rotating rod; 8. First gear; 9. Discharge port; 10. Support rod; 11. Dispersing disc; 12. Support plate; 13. First motor; 14. Drive gear; 15. First driven wheel; 16. Second driven wheel; 17. Lower shell; 18. Air inlet; 19. Protective cover; 20. Base column; 21. Foot pad; 22. Collection box; 23. Controller; 24. Locking block; 25. Locking slot; 26. Handle; 27. Rubber ring; 28. Retaining ring. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 This utility model provides an embodiment of a powder particle size classification device, comprising an upper shell 1, a transmission rod 3 rotatably connected to the inner wall of the upper shell 1, a dispersing disk 11 fixedly connected to the bottom end of the transmission rod 3, a fixing block 4 fixedly connected to the top right side of the upper shell 1, a slider 5 slidably connected to the inner wall of the fixing block 4, a rack 6 fixedly connected to the outer wall of the slider 5, a plurality of support rods 10 fixedly connected to the top of the upper shell 1 near the edge, a first rotating rod 7 rotatably connected to each adjacent side of the plurality of support rods 10, a first gear 8 fixedly connected to the left end of the outer wall of the first rotating rod 7, and a support plate 12 fixedly connected to the top end of the slider 5. A first motor 13 is fixedly connected to the top of the holding plate 12. A drive gear 14 is fixedly connected to the output end of the first motor 13. A first driven wheel 15 is fixedly connected to the top of the transmission rod 3. A second driven wheel 16 is fixedly connected to the outer wall of the transmission rod 3 near the edge. A discharge port 9 is opened on the left side of the upper shell 1. A lower shell 17 is threadedly connected to the bottom of the upper shell 1. An air inlet 18 is opened on the outer wall of the lower shell 17. A pretreatment structure 2 is fixedly connected to the front side of the upper shell 1. The pretreatment structure 2 is used for pretreatment before dust classification. A protective cover 19 is fixedly connected to the top of the upper shell 1. A controller 23 is fixedly connected to the right side of the outer wall of the upper shell 1.
[0035] Specifically, multiple support rods 10 are fixedly connected to the top of the upper shell 1 near the edge. These support rods 10 provide structural support for the equipment. A first rotating rod 7 is rotatably connected to each adjacent side of the multiple support rods 10. A first gear 8 is fixedly connected to the left end of the outer wall of the first rotating rod 7 for transmitting power. A discharge port 9 is opened on the left side of the upper shell 1 for discharging the processed small granular powder. An air inlet 18 is opened on the outer wall of the lower shell 17 for introducing airflow. A protective cover 19 is fixedly connected to the top of the upper shell 1 for protecting the internal structure from the influence of the external environment. A controller 23 is fixedly connected to the right side of the outer wall of the upper shell 1 for controlling the operation of the equipment.
[0036] Please see the appendix Figure 5 Appendix Figure 6 and attached Figure 7 The pretreatment structure 2 includes a motor base 201. The outer wall of the motor base 201 is fixedly connected to the front side of the outer wall of the upper shell 1. A second motor 202 is fixedly connected to the center of the top surface of the motor base 201. A connecting rod 203 is fixedly connected to the front top of the motor base 201. A third rotating rod 209 is fixedly connected to the output end of the second motor 202. A second gear 207 is fixedly connected to the front side of the outer wall of the third rotating rod 209. A second rotating rod 206 is rotatably connected to the outer wall of the connecting rod 203. Multiple cutters 21 are fixedly connected to the outer wall of the second rotating rod 206. 2. A third gear 208 is fixedly connected to the middle of the outer wall of the second rotating rod 206. A conveying pipe 214 is rotatably connected to the middle of the outer wall of the third rotating rod 209. A leak-proof shell 213 is fixedly connected to the outer wall of the conveying pipe 214. An inlet shell 210 is fixedly connected to the top of the leak-proof shell 213. A filter screen 211 is fixedly connected to the inner wall of the inlet shell 210. An inlet pipe 205 is connected to the rear side of the filter screen 211. An inlet funnel 204 is connected to the top of the inlet pipe 205. A conveying ring 215 is fixedly connected to the outer wall of the third rotating rod 209 near the edge.
[0037] Specifically, multiple cutters 212 are fixedly connected to the outer wall of the second rotating rod 206. These cutters 212 can perform cutting operations. The top of the feed pipe 205 is connected to a feed funnel 204, so that the material can enter the feed pipe 205 through the feed funnel 204, be filtered by the filter screen 211, and finally be conveyed through the conveying pipe 214. A conveying ring 215 is also fixedly connected to the outer wall of the third rotating rod 209 near the edge. This conveying ring 215 can further ensure the uniformity and stability of the material during the conveying process.
[0038] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 8Multiple base posts 20 are fixedly connected to the bottom edge of the lower shell 17, and foot pads 21 are fixedly connected to the bottom of each of the multiple base posts 20. A collection box 22 is connected to the middle of the bottom end of the lower shell 17. A retaining ring 28 is fixedly connected to the bottom of the upper shell 1. The inner wall of the first gear 8 is meshed with the inner wall of the rack 6, and the inner wall of the driving gear 14 is meshed with the inner wall of the second driven wheel 16.
[0039] Specifically, multiple base posts 20 are fixedly connected to the bottom edge of the lower shell 17, and foot pads 21 are fixedly connected to the bottom of each of the multiple base posts 20, thereby providing stable support for the overall structure. A collection box 22 is connected to the middle of the bottom of the lower shell 17 for collecting large particles of dust. A retaining ring 28 is fixedly connected to the bottom of the upper shell 1 to ensure that it can fall into the dispersion plate 11.
[0040] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 A locking block 24 is fixedly connected to the middle of the outer wall of the first rotating rod 7, a locking groove 25 is opened on the outer wall of the support rod 10, a handle 26 is fixedly connected to the top of the first rotating rod 7, and multiple rubber rings 27 are fixedly connected to the outer wall of the handle 26.
[0041] Specifically, a locking block 24 is fixedly connected to the middle of the outer wall of the first rotating rod 7, and a locking groove 25 is opened on the outer wall of the support rod 10. The purpose is to enable the locking block 24 and the locking groove 25 to effectively cooperate and fix, so as to achieve the stability of the structure. A rubber ring 27 is specially fixedly connected to the outer wall of the handle 26. The rubber ring 27 can effectively increase the friction of the handle 26, thereby reducing the possibility of slippage and improving the safety and comfort during use.
[0042] Working principle: When the machine is working, the controller 23 starts the first motor 13 to rotate, which drives the drive gear 14 to rotate. The rotation of the drive gear 14 drives the second driven wheel 16, the transmission rod 3 and the dispersing disc 11 to rotate, causing the powder on the dispersing disc 11 to rotate and be subjected to outward centrifugal force. The powder is then evenly dispersed outward through the outer wall of the dispersing disc 11. Tangential airflow is delivered to the interior of the lower shell 17 and the upper shell 1 through the air inlet 18, forming an upward air column. Small dust particles, due to their lower gravity, are carried by the rising airflow and discharged outward from the discharge port 9. Large dust particles, due to their higher gravity, are discharged downward and fall into the collection box 22. When it is necessary to adjust the powder classification scale... When the rubber ring 27 is rotated, it drives the first rotating rod 7 to rotate. Due to the action of the structural rack 6 and the fixed block 4, the slider 5 moves upward, driving the first motor 13 and the driving gear 14 to move upward, so that the driving gear 14 disengages from the second driven wheel 16. When the driving gear 14 engages with the first driven wheel 15, the handle 26 stops rotating and pushes the rubber ring 27 towards the slot 25. The structural block 24 and the slot 25 stabilize it. Since the first driven wheel 15 and the second driven wheel 16 have different numbers of teeth, the rotation speed of the first driven wheel 15 and the second driven wheel 16 is different, which changes the rotation speed of the dispersing disk 11, thereby changing the magnitude of the centrifugal force on the powder and achieving the purpose of adjusting the size of the powder classification.
[0043] The function of the pretreatment structure 2 is to pre-treat the powder before grading. The untreated powder is poured into the feed funnel 204 and enters the filter screen 211 through the feed pipe 205. The second motor 202 is started to drive the second gear 207, the third gear 208 and the cutter 212 to rotate, which performs preliminary stirring and chopping treatment on the untreated powder. After the preliminary treatment, the small powder particles enter the conveying pipe 214 through the holes on the filter screen 211, while the large powder particles continue to be stirred and chopped in the filter screen 211. The rotation of the second motor 202 also drives the conveying ring 215 to rotate, thereby conveying the powder in the conveying pipe 214 through the inner wall of the conveying pipe 214 to the dispersing disc 11.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A powder particle size classification device, comprising an upper shell (1), characterized in that: A transmission rod (3) is rotatably connected to the inner wall of the upper shell (1). A dispersing disc (11) is fixedly connected to the bottom end of the transmission rod (3). A fixing block (4) is fixedly connected to the top right side of the upper shell (1). A slider (5) is slidably connected to the inner wall of the fixing block (4). A rack (6) is fixedly connected to the outer wall of the slider (5). Multiple support rods (10) are fixedly connected to the top of the upper shell (1) near the edge. A first rotating rod (7) is rotatably connected to the adjacent side of each of the multiple support rods (10). A first gear (8) is fixedly connected to the left end of the outer wall of the first rotating rod (7). A support plate (12) is fixedly connected to the top of the slider (5). The support plate (12) is fixedly connected to the top of the first motor (13), the output end of the first motor (13) is fixedly connected to the drive gear (14), the top end of the transmission rod (3) is fixedly connected to the first driven wheel (15), the outer wall of the transmission rod (3) is fixedly connected to the second driven wheel (16) near the edge, the left side of the upper shell (1) is provided with a discharge port (9), the bottom of the upper shell (1) is threadedly connected to the lower shell (17), the outer wall of the lower shell (17) is provided with an air inlet (18), the front side of the upper shell (1) is fixedly connected to a pretreatment structure (2), the pretreatment structure (2) is used for pretreatment before dust classification.
2. The powder particle size classification device according to claim 1, characterized in that: The pretreatment structure (2) includes a motor base (201), the outer wall of which is fixedly connected to the front side of the outer wall of the upper shell (1). A second motor (202) is fixedly connected to the middle of the top surface of the motor base (201). A connecting rod (203) is fixedly connected to the front top of the motor base (201). A third rotating rod (209) is fixedly connected to the output end of the second motor (202). A second gear (207) is fixedly connected to the front side of the outer wall of the third rotating rod (209). A second rotating rod (206) is rotatably connected to the outer wall of the connecting rod (203). A plurality of cutters (212) are fixedly connected to the outer wall of the second rotating rod (206). A third gear (208) is fixedly connected to the middle of the outer wall of the second rotating rod (206). A conveying pipe (214) is rotatably connected to the middle of the outer wall of the third rotating rod (209). A leak-proof shell (213) is fixedly connected to the outer wall of the conveying pipe (214). An inlet shell (210) is fixedly connected to the top of the leak-proof shell (213). A filter screen (211) is fixedly connected to the inner wall of the inlet shell (210). An inlet pipe (205) is connected to the rear side of the filter screen (211). An inlet funnel (204) is connected to the top of the inlet pipe (205). A conveying ring (215) is fixedly connected to the outer wall of the third rotating rod (209) near the edge.
3. The powder particle size classification device according to claim 1, characterized in that: A protective cover (19) is fixedly connected to the top of the upper shell (1), and a controller (23) is fixedly connected to the right side of the outer wall of the upper shell (1).
4. The powder particle size classification device according to claim 1, characterized in that: The bottom edge of the lower shell (17) is fixedly connected to a plurality of bottom posts (20), and the bottom of each of the plurality of bottom posts (20) is fixedly connected to a foot pad (21).
5. The powder particle size classification device according to claim 1, characterized in that: The bottom of the lower shell (17) is connected to a collection box (22), and the bottom of the upper shell (1) is fixedly connected to a retaining ring (28).
6. The powder particle size classification device according to claim 1, characterized in that: A locking block (24) is fixedly connected to the middle of the outer wall of the first rotating rod (7), and a locking groove (25) is opened on the outer wall of the support rod (10).
7. The powder particle size classification device according to claim 1, characterized in that: A handle (26) is fixedly connected to the top of the first rotating rod (7), and a plurality of rubber rings (27) are fixedly connected to the outer wall of the handle (26).
8. A powder particle size classification device according to claim 1, characterized in that: The inner wall of the first gear (8) meshes with the inner wall of the rack (6), and the inner wall of the driving gear (14) meshes with the inner wall of the second driven gear (16).