A batch-type crushing device for preparing hydrogen storage alloy powder
By designing a batch crushing device, efficient screening and crushing of hydrogen storage alloy powder was achieved, solving the problems of substandard particle size and dust diffusion in existing technologies, and improving production efficiency and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA XIAOKE HYDROGEN STORAGE ALLOY CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies cannot meet the requirement of ≤500μm particle size for hydrogen storage alloy powder in one go. After crushing, it needs to be screened multiple times and the transfer causes dust to spread, resulting in low production efficiency.
Design a batch crushing device for preparing hydrogen storage alloy powder, including a screening shell, an impact mill, a grading screening mechanism, a discharge pipe, a dust treatment mechanism, and a return material mechanism. After crushing by the impact mill, the alloy is graded and screened in the screening shell. The screen cylinder is driven to rotate by a motor, the screen cylinder is cleaned by cleaning brushes, the return material mechanism repeatedly crushes large pieces of alloy, and the dust treatment mechanism collects dust.
It improves the screening and crushing efficiency of hydrogen storage alloy powder, reduces dust diffusion, and enhances production efficiency and environmental protection.
Smart Images
Figure CN224293323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrogen storage alloy powder crushing technology, specifically to a batch crushing device for preparing hydrogen storage alloy powder. Background Technology
[0002] With the increasing prevalence of connected vehicles and the growing communication demands from features such as OTA updates, remote vehicle control, and digital keys, the market demand for automotive T-BOXs is expanding further. The batteries used in automotive T-BOXs require a wide temperature range of -30℃ to 80℃ to function properly during charging and discharging. To ensure the wide-temperature performance of T-BOX batteries, existing hydrogen storage alloys used in T-box batteries for in-vehicle connectivity terminals can employ a specially formulated powder particle size distribution. This alloy powder requires a particle size ≤500μm.
[0003] However, existing crushing and grinding equipment cannot achieve the particle size requirement of ≤500μm in one go. After crushing, the material bucket needs to be manually connected to the screening machine for sieving. During the transfer and sieving process, dust can easily spread on site and the production efficiency is low. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a batch crushing device for preparing hydrogen storage alloy powder, which solves the problem mentioned in the background art that the preparation process of hydrogen storage alloy powder requires multiple sieving and crushing, and that the frequent transfer of hydrogen storage alloy powder during crushing and sieving affects production efficiency.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a batch crushing device for preparing hydrogen storage alloy powder, comprising a screening shell and an impact mill, wherein the impact mill is installed on the screening shell and its output end is connected to the screening shell; a feed inlet is provided on the top side wall of the impact mill, and a feed control valve is built into the feed inlet; the device also includes a grading screening mechanism, a discharge pipe, a dust treatment mechanism, and a return material mechanism; the grading screening mechanism is disposed inside the screening shell for screening the hydrogen storage alloy; the discharge pipe is connected to the bottom side wall of the screening shell and has a discharge control valve built into it; the dust treatment mechanism is disposed on one side of the screening shell for treating the dust generated during screening and crushing; and the return material mechanism is disposed between the screening shell and the impact mill for re-feeding the large alloy pieces after screening back to the impact mill for crushing.
[0008] Preferably, the grading and screening mechanism includes a support ring, a support disk, a support column, and a first motor. Multiple support rings are rotatably arranged inside the screening housing. A sealing ring is fixedly arranged on the side wall of each support ring, and the sealing ring contacts the inner wall of the screening housing. A support disk is arranged on one side of each support ring. A screen cylinder is fixedly arranged between the side wall of the support disk and the support ring. The support column is rotatably arranged on the inner top wall of the screening housing, and the support column is fixedly connected to the support disk. The first motor is mounted on the screening housing, and the output end of the first motor is fixedly connected to the support column.
[0009] Furthermore, a cleaning seat is fixedly provided on the side wall of the screening shell on one side of the support ring. A cleaning groove is provided on the side wall of the cleaning seat. A cleaning block is slidably provided in the cleaning groove. A support spring is fixedly provided between the cleaning block and the bottom of the cleaning groove. Cleaning bristles are evenly distributed on the side wall of the cleaning block and the cleaning bristles are in contact with the screen cylinder.
[0010] Furthermore, the material return mechanism includes a support platform, a material return channel, and a auger elevator. The support platform is fixedly mounted on the side wall of the screening shell, and a first shell is fixedly mounted on the support platform. The material return channel is connected to one side of the support ring on the side wall of the screening shell. The material return channel has a built-in electronic control valve and is connected to the first shell. The auger elevator is mounted on the support platform, and its input end is connected to the first shell. Its output end is connected to the impact mill through a connecting pipe.
[0011] Furthermore, the dust handling mechanism includes a filter box, a connecting pipe, and a fan. The filter box is installed on one side of the screening housing and has a built-in filter plate. The connecting pipe is connected between the top of the side wall of the screening housing and the inner top wall of the filter box. The fan is installed on one side of the filter box and its input end is connected to the filter box.
[0012] Based on the above scheme, a coarse filter screen is installed inside the connecting pipe.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a batch crushing device for preparing hydrogen storage alloy powder, which has the following beneficial effects:
[0015] 1. In this utility model, by setting up an impact mill and a screening mechanism, the hydrogen storage alloy powder crushed by the impact mill can enter the screening shell, and then the impacted hydrogen storage alloy powder is graded and screened by multiple screen cylinders. At the same time, during the screening process, the screen cylinder can be driven to rotate by the operation of the first motor, thereby improving the screening efficiency of the screen cylinder for hydrogen storage alloy powder.
[0016] 2. In this utility model, by setting up a return material mechanism, after screening, the electronic control valve can be opened, and the hydrogen storage alloy pulverized blocks remaining on the support ring can enter the first housing through the return material channel, and then be transported to the impact mill for re-crushing by the auger elevator, thereby facilitating the batch and repeated crushing of hydrogen storage alloy powder, thereby improving the crushing effect and crushing efficiency.
[0017] 3. In this utility model, by setting up cleaning blocks and cleaning seats, the hydrogen storage alloy pulverized blocks attached to the surface of the screen cylinder can be cleaned by cleaning brushes during the rotation of the screen cylinder, thereby avoiding large particles of hydrogen storage alloy powder from clogging the screen holes and affecting the filtration efficiency.
[0018] 4. In this utility model, by setting up a dust treatment mechanism, a negative pressure can be generated in the filter box by the operation of the fan, and then the dust in the screening shell is drawn into the filter box for collection after being filtered through the coarse filter screen through the connecting pipe, thereby avoiding the spread of dust and affecting the factory environment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this application;
[0020] Figure 2 This is a cross-sectional structural diagram of this application;
[0021] Figure 3 This is a cross-sectional structural diagram of the material return mechanism in this application;
[0022] Figure 4 This is a schematic diagram of the screening mechanism structure in this application;
[0023] Figure 5 This is a cross-sectional structural diagram of the cleaning seat in this application.
[0024] In the diagram: 1. Screening shell; 2. Impact mill; 3. Feed inlet; 4. Discharge pipe; 5. Support ring; 6. Support plate; 7. Screen cylinder; 8. Support column; 9. First motor; 10. Cleaning seat; 11. Cleaning block; 12. Support spring; 13. Support platform; 14. First shell; 15. Return channel; 16. Auger; 17. Filter box; 18. Filter plate; 19. Connecting pipe; 20. Fan. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-5 A batch crushing device for preparing hydrogen storage alloy powder includes a screening shell 1 and an impact mill 2. The impact mill 2 is installed on the screening shell 1 and its output end is connected to the screening shell 1. The top side wall of the impact mill 2 has a feed inlet 3 with a built-in feed control valve. The device also includes a grading screening mechanism, a discharge pipe 4, a dust treatment mechanism, and a return material mechanism. The grading screening mechanism is located inside the screening shell 1 and is used to screen the hydrogen storage alloy. The discharge pipe 4 is connected to the bottom side wall of the screening shell 1 and has a built-in discharge control valve. The dust treatment mechanism is located on one side of the screening shell 1 and is used to treat the dust generated during screening and crushing. The return material mechanism is located between the screening shell 1 and the impact mill 2 and is used to re-transport the large alloy pieces after screening back to the impact mill 2 for crushing.
[0027] Reference Figures 1-4 The grading and screening mechanism includes a support ring 5, a support disk 6, a support column 8, and a first motor 9. Multiple support rings 5 are rotatably arranged inside the screening housing 1. A sealing ring is fixedly installed on the side wall of each support ring 5, and the sealing ring contacts the inner wall of the screening housing 1. A support disk 6 is installed on one side of each support ring 5. A screen cylinder 7 is fixedly installed between the side wall of the support disk 6 and the support ring 5. A support column 8 is rotatably arranged on the inner top wall of the screening housing 1, and the support column 8 is fixedly connected to the support disk 6. The first motor 9 is installed on the screening housing 1, and its output end is fixedly connected to the support column 8. Specifically, after adding hydrogen storage alloy powder to the impact mill 2 through the feed inlet 3, the feed control valve is closed. The impact mill 2 then crushes the hydrogen storage alloy powder. The crushed hydrogen storage alloy powder enters the screening housing 1, where it is graded and screened by multiple screen cylinders 7. During the screening process, the first motor 9 drives the screen cylinders 7 to rotate, thereby improving the screening efficiency of the screen cylinders 7 for the hydrogen storage alloy powder.
[0028] Reference Figure 3 and Figure 5A cleaning seat 10 is fixedly installed on the side wall of the screening shell 1 on one side of the support ring 5. A cleaning groove is opened on the side wall of the cleaning seat 10. A cleaning block 11 is slidably installed in the cleaning groove. A support spring 12 is fixedly installed between the cleaning block 11 and the bottom of the cleaning groove. Cleaning bristles are evenly distributed on the side wall of the cleaning block 11. The cleaning bristles are in contact with the screen cylinder 7. Specifically, during the rotation of the screen cylinder 7, the hydrogen storage alloy pulverized blocks attached to the surface of the screen cylinder 7 can be cleaned by the cleaning bristles, thereby avoiding large particles of hydrogen storage alloy powder from clogging the screen holes and affecting the filtration efficiency.
[0029] Reference Figures 1-3 The return material mechanism includes a support platform 13, a return material channel 15, and a auger elevator 16. The support platform 13 is fixedly installed on the side wall of the screening shell 1, and a first shell 14 is fixedly installed on the support platform 13. The side wall of the screening shell 1, which is connected to the support ring 5, has a return material channel 15. The return material channel 15 has an built-in electronic control valve and is connected to the first shell 14. The auger elevator 16 is installed on the support platform 13. The input end of the auger elevator 16 is connected to the first shell 14, and the output end of the auger elevator 16 is connected to the impact mill 2. Specifically, after screening, the electronic control valve can be opened, and the hydrogen storage alloy pulverized blocks remaining on the support ring 5 can enter the first shell 14 through the return material channel 15. Then, they are transported to the impact mill 2 for re-crushing by the auger elevator 16, which facilitates the batch and repeated crushing of the hydrogen storage alloy powder, thereby improving the crushing effect and crushing efficiency.
[0030] Reference Figures 1-3 The dust handling mechanism includes a filter box 17, a connecting pipe 19, and a fan 20. The filter box 17 is installed on one side of the screening housing 1, and a filter plate 18 is built into the filter box 17. The connecting pipe 19 is connected between the top of the side wall of the screening housing 1 and the inner top wall of the filter box 17. The fan 20 is installed on one side of the filter box 17, and the input end of the fan 20 is connected to the filter box 17. A coarse filter screen is installed inside the connecting pipe 19. Specifically, the operation of the fan 20 can generate negative pressure in the filter box 17, thereby drawing the dust in the screening housing 1 through the connecting pipe after it has been filtered by the coarse filter screen and then sucked into the filter box 17 for collection, thus preventing the dust from spreading and affecting the factory environment.
[0031] Working principle: During operation, the operator adds hydrogen storage alloy powder to the impact mill 2 through the feed inlet 3 and then closes the feed control valve. The impact mill 2 then crushes the hydrogen storage alloy powder. The crushed hydrogen storage alloy powder enters the screening shell 1 and is then graded and screened by multiple screen cylinders 7. During the screening process, the first motor 9 drives the screen cylinders 7 to rotate, thereby improving the screening efficiency of the screen cylinders 7. While the screen cylinders 7 are rotating, cleaning brushes can be used to clean the surface of the screen cylinders 7 to remove any remaining crushed hydrogen storage alloy particles, thus preventing large particles from forming. The hydrogen storage alloy powder can clog the sieve and affect the filtration efficiency. After screening, the electronic control valve can be opened, and the hydrogen storage alloy pulverized pieces remaining on the support ring 5 can enter the first housing 14 through the return channel 15. Then, they are transported to the impact mill 2 for re-crushing by the auger elevator 16. This facilitates the batch and repeated crushing of the hydrogen storage alloy powder, thereby improving the crushing effect and crushing efficiency. During the screening process, the operation of the blower 20 can generate negative pressure in the filter box 17, and then the dust in the screening housing 1 is drawn into the filter box 17 for collection after being filtered through the coarse filter screen by the connecting pipe, thereby preventing the dust from spreading and affecting the factory environment.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A batch crushing device for preparing hydrogen storage alloy powder, comprising a screening shell (1) and an impact mill (2), wherein the impact mill (2) is mounted on the screening shell (1), the output end of the impact mill (2) is connected to the screening shell (1), and a feed inlet (3) is provided on the top side wall of the impact mill (2), wherein the feed inlet (3) has a built-in feed control valve, characterized in that, Also includes: A grading and screening mechanism is provided inside the screening housing (1) for screening hydrogen storage alloys. The discharge pipe (4) is connected to the bottom side wall of the screening shell (1), and the discharge pipe (4) has a built-in discharge control valve. A dust treatment mechanism is provided on one side of the screening housing (1) for treating the dust generated during screening and crushing. The material return mechanism is located between the screening shell (1) and the impact mill (2) and is used to re-transport the large alloy pieces after screening back to the impact mill (2) for crushing.
2. The batch crushing device for preparing hydrogen storage alloy powder according to claim 1, characterized in that, The grading and screening mechanism includes: Support ring (5), a plurality of support rings (5) are rotatably arranged inside the screening housing (1), and a sealing ring is fixedly provided on the side wall of the support ring (5), and the sealing ring is in contact with the inner wall of the screening housing (1); A support plate (6) is provided on one side of the support ring (5), and a sieve cylinder (7) is fixedly provided between the side wall of the support plate (6) and the support ring (5); Support column (8), the support column (8) is rotatably provided on the inner top wall of the screening shell (1), and the support column (8) is fixedly connected to the support plate (6); The first motor (9) is mounted on the screening housing (1), and the output end of the first motor (9) is fixedly connected to the support column (8).
3. The batch crushing device for preparing hydrogen storage alloy powder according to claim 2, characterized in that, A cleaning seat (10) is fixedly installed on the side wall of the screening housing (1) on one side of the support ring (5). A cleaning groove is opened on the side wall of the cleaning seat (10). A cleaning block (11) is slidably installed in the cleaning groove. A support spring (12) is fixedly installed between the cleaning block (11) and the bottom of the cleaning groove. Cleaning bristles are evenly distributed on the side wall of the cleaning block (11). The cleaning bristles are in contact with the screen cylinder (7).
4. The batch crushing device for preparing hydrogen storage alloy powder according to claim 3, characterized in that, The material return mechanism includes: A support platform (13) is fixedly mounted on the side wall of the screening housing (1), and a first housing (14) is fixedly mounted on the support platform (13). The material return channel (15) is provided on the side wall of the screening shell (1) connected to one side of the support ring (5). The material return channel (15) has a built-in electronic control valve and is connected to the first shell (14). The auger hoist (16) is installed on the support platform (13). The input end of the auger hoist (16) is connected to the first housing (14), and the output end of the auger hoist (16) is connected to the impact mill (2) through a connecting pipe.
5. The batch crushing device for preparing hydrogen storage alloy powder according to claim 4, characterized in that, The dust handling mechanism includes: A filter box (17) is installed on one side of the screening housing (1), and the filter box (17) has a built-in filter plate (18); A connecting pipe (19) is provided between the top of the side wall of the screening housing (1) and the inner top wall of the filter box (17); A fan (20) is installed on one side of the filter box (17), and the input end of the fan (20) is connected to the filter box (17).
6. The batch crushing device for preparing hydrogen storage alloy powder according to claim 5, characterized in that, A coarse filter screen is installed inside the connecting pipe (19).