A ball milling device for noble metal catalyst processing facilitating dust reduction treatment
By introducing a dust suppression system into the ball mill, which uses negative pressure airflow and water curtain to capture dust, the problem of dust pollution during the ball milling process has been solved, achieving efficient dust treatment and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI PENGKE METAL TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
Existing ball milling equipment is not convenient for dust control during the processing of precious metal catalysts, resulting in dust pollution of the working environment and harm to the health of operators.
A ball milling device was designed, comprising an outer cylinder, a ball mill filter cartridge, a dust collection box, a dust suction pipe, a spray head, and a filter screen. The ball mill filter cartridge is rotated by a motor-driven gear transmission. The negative pressure airflow generated by the fan blades draws in dust, and water is sprayed through the spray head to form a water curtain to capture the dust. After forming a slurry, solid-liquid separation is performed.
Effective collection and treatment of dust generated during ball milling reduces health hazards to operators and environmental pollution, ensuring efficient processing of precious metal catalysts.
Smart Images

Figure CN224388901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball milling equipment technology, specifically to a ball milling device for processing precious metal catalysts that facilitates dust reduction. Background Technology
[0002] Noble metal catalysts are precious metal materials that can alter the rate of chemical reactions without participating in the final products themselves. In the processing of noble metal catalysts, ball mills are indispensable key equipment. Through the movement of grinding media, they crush, grind, and mix materials, effectively refining the noble metal catalyst particles and significantly increasing the specific surface area and activity of the catalyst, thereby optimizing its performance. However, existing ball mills still have certain shortcomings, such as:
[0003] The "ball milling device" with application number CN202222176259.4 is inconvenient for dust suppression during use. As a large amount of dust is inevitably generated during the ball milling process, this dust not only poses a serious threat to the health of operators, but also pollutes the working environment and affects the normal operation of other equipment when it spreads in the workshop, making it difficult to meet the requirements of high-efficiency processing of precious metal catalysts. In view of this, a ball milling device for processing precious metal catalysts that is easy to suppress dust is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a ball milling device for processing precious metal catalysts that facilitates dust reduction, thereby solving the problem of inconvenient dust reduction in existing ball milling devices mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a ball milling device for processing precious metal catalysts that facilitates dust reduction, comprising an outer cylinder and a ball milling filter cylinder, wherein the ball milling filter cylinder bearing penetrates the front and rear side walls of the outer cylinder, and multiple grinding steel balls are placed inside the ball milling filter cylinder;
[0006] Four support columns are fixedly installed on the surface of the outer cylinder, and a base plate is fixedly installed on the bottom surface of the support columns. A feed hopper is provided through the central bearing of the front side wall of the ball mill filter cartridge, and the feed hopper is fixedly installed on the top surface of the base plate by a straight rod. A guide hopper is fixedly provided through the bottom of the outer cylinder, and a discharge cover is detachably provided at the bottom of the guide hopper. A dust suppression mechanism is connected to the top of the outer cylinder.
[0007] The above technical solution facilitates dust suppression during the ball milling of precious metal catalysts.
[0008] As a preferred technical solution of this utility model, a motor is fixedly installed on the top surface of the base plate through a machine base, and a drive gear is fixedly installed on the shaft end of the motor. The drive gear meshes with the driven gear, and the driven gear is fixedly installed on the front end of the outer wall of the ball mill filter cylinder.
[0009] The above technical solution facilitates the rotation of the drive gear via a motor, which in turn transmits power to the ball mill filter cartridge via the driven gear. This allows the gear transmission structure to provide stable torque output for ball milling precious metal catalysts, meeting the high load requirements during the grinding of precious metal materials.
[0010] As a preferred technical solution of this utility model, the dust suppression mechanism includes a dust suppression box, which is fixedly installed on the rear end of the top surface of the base plate. The front side wall of the dust suppression box is fixedly connected to one end of the suction pipe, and the other end of the suction pipe is fixedly connected to the top of the outer cylinder. A rotating rod is provided through the transverse bearing on the front side wall of the dust suppression box, and a fan blade is fixedly installed coaxially at the rear end of the rotating rod. An exhaust pipe is fixedly installed through the right side wall of the dust suppression box.
[0011] By adopting the above technical solution, the dust collection box can be connected to the top of the outer cylinder through the suction pipe. When the fan blades at the rear end of the rotating rod rotate, a negative pressure airflow is formed, which sucks the dust generated during the grinding process in the outer cylinder into the dust collection box through the suction pipe.
[0012] As a preferred technical solution of this utility model, the dust suppression mechanism further includes a water supply pipe, which is horizontally fixed through the upper end of the rear side wall of the dust suppression box and connected to an external water supply device. Multiple spray heads are equidistantly connected and fixedly installed at the bottom of the water supply pipe, and the spray heads are located inside the dust suppression box. A discharge pipe with a valve is fixedly installed through the lower end of the rear side wall of the dust suppression box.
[0013] The above technical solution facilitates the connection of water pipes to external water supply equipment to supply water to the spray heads inside the dust settling box. Multiple spray heads are evenly distributed to form a uniform water curtain, which fully contacts the dust sucked into the dust settling box, captures the dust and forms slurry, thus achieving dust settling.
[0014] As a preferred technical solution of this utility model, the front end of the rotating rod is coaxially and fixedly connected to the output shaft end of the gearbox, and the gearbox is fixedly installed on the top surface of the base plate. The input shaft end of the gearbox is coaxially and fixedly connected to a transmission shaft, and the transmission shaft is fixedly installed at the center of the rear side wall of the ball mill filter cartridge.
[0015] By adopting the above technical solution, when the ball mill filter cartridge rotates, the transmission shaft drives the gearbox to rotate, thereby driving the rotating rod and fan blades to rotate at an increased speed.
[0016] As a preferred embodiment of this utility model, the dust collection box is equipped with a detachable filter screen inside, and the filter screen is located below the fan blades. The side wall of the dust collection box is provided with a sealed door.
[0017] The above technical solution facilitates the filtration of dust-collecting slurry, achieving solid-liquid separation.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the ball milling device for processing precious metal catalysts that facilitates dust reduction can effectively collect and process the dust generated during the ball milling process, reduce the harm of dust to the health of operators and the pollution to the working environment, and at the same time avoid dust affecting the normal operation of other equipment, thus meeting the needs of high-efficiency processing of precious metal catalysts;
[0019] 1. By starting the motor to drive the drive gear to rotate, the driven gear drives the ball mill filter cylinder to rotate, thereby driving the grinding steel balls to rotate and collide and grind the precious metal catalyst under centrifugal force;
[0020] 2. The rotation of the ball mill filter cartridge drives the drive shaft to rotate synchronously. Through the gearbox, the rotating rod drives the fan blades to rotate at a faster speed. The rotation of the fan blades creates a negative pressure airflow, which draws the dust generated during the ball milling process into the dust collection box. Water is sprayed through the spray head to form a water curtain, which fully contacts and captures the dust to form slurry. The dust collection efficiency is high, which can effectively reduce the harm of dust to the health of operators and the pollution of the working environment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the front side view of the present invention;
[0022] Figure 2 This is a schematic diagram of the rear side view of the present invention;
[0023] Figure 3 This is a schematic diagram of the cross-sectional connection structure between the outer cylinder and the ball mill filter cylinder of this utility model;
[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the dust collection box of this utility model;
[0025] Figure 5 This is a schematic diagram of the cross-sectional connection structure between the dust collection box and the filter screen in Embodiment 2 of this utility model.
[0026] In the diagram: 1. Outer cylinder; 2. Ball mill filter cartridge; 3. Support column; 4. Base plate; 5. Feed hopper; 6. Guide hopper; 7. Motor; 8. Drive gear; 9. Driven gear; 10. Dust settling box; 11. Dust suction pipe; 12. Rotating rod; 13. Fan blade; 14. Exhaust pipe; 15. Water supply pipe; 16. Spray head; 17. Discharge pipe; 18. Gearbox; 19. Drive shaft; 20. Filter screen. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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. Example
[0028] Please see Figure 1 - Figure 4 The present invention provides a ball milling device for processing precious metal catalysts that facilitates dust reduction. The device includes an outer cylinder 1 and a ball milling filter cylinder 2. Bearings in the ball milling filter cylinder 2 penetrate the front and rear side walls of the outer cylinder 1. Multiple grinding steel balls are placed inside the ball milling filter cylinder 2. Four support columns 3 are fixedly installed on the surface of the outer cylinder 1, and a base plate 4 is fixedly installed on the bottom surface of the support columns 3. A feed hopper 5 is installed through the central bearing of the front side wall of the ball milling filter cylinder 2, and the feed hopper 5 is fixedly installed on the top surface of the base plate 4 via a straight rod. A guide hopper 6 is fixedly installed through the bottom of the outer cylinder 1, and a discharge cover is detachably installed at the bottom of the guide hopper 6. A dust reduction mechanism is connected to the top of the outer cylinder 1.
[0029] The top surface of the base plate 4 is fixedly mounted with a motor 7 via a machine base, and the shaft end of the motor 7 is fixedly mounted with a drive gear 8. The drive gear 8 meshes with the driven gear 9, and the driven gear 9 is fixedly mounted on the front end of the outer wall of the ball mill filter cartridge 2.
[0030] The dust collection mechanism includes a dust collection box 10. The inner bottom surface of the dust collection box 10 is inclined with the front higher than the back. The dust collection box 10 is fixedly installed on the rear end of the top surface of the base plate 4. The front side wall of the dust collection box 10 is fixedly connected to one end of the suction pipe 11, and the other end of the suction pipe 11 is fixedly connected to the top of the outer cylinder 1. A rotating rod 12 is provided through the transverse bearing on the front side wall of the dust collection box 10, and a fan blade 13 is fixedly installed coaxially at the rear end of the rotating rod 12. An exhaust pipe 14 is fixedly installed through the right side wall of the dust collection box 10.
[0031] The dust suppression mechanism also includes a water supply pipe 15, which is horizontally fixed through the upper end of the rear side wall of the dust suppression box 10 and is connected to an external water supply device. Multiple spray heads 16 are equidistantly connected and fixedly installed at the bottom of the water supply pipe 15, and the spray heads 16 are located inside the dust suppression box 10. A discharge pipe 17 with a valve is fixedly installed through the lower end of the rear side wall of the dust suppression box 10.
[0032] The front end of the rotating rod 12 is coaxially and fixedly connected to the output shaft end of the gearbox 18, and the gearbox 18 is fixedly installed on the top surface of the base plate 4. The input shaft end of the gearbox 18 is coaxially and fixedly connected to the drive shaft 19, and the drive shaft 19 is fixedly installed at the center of the rear side wall of the ball mill filter cartridge 2.
[0033] Working principle: When in use, the material enters the ball mill filter cylinder 2 through the feed hopper 5. The motor 7 is started to drive the drive gear 8 to rotate, which causes the driven gear 9, which is meshed with the drive gear 8, to drive the ball mill filter cylinder 2 to rotate. The grinding steel balls inside the ball mill filter cylinder 2 collide and grind the precious metal catalyst under centrifugal action. The ground precious metal catalyst is discharged through the discharge gate on the guide hopper 6.
[0034] The rotation of the ball mill filter cartridge 2 drives the transmission shaft 19 to drive the speed change gearbox 18, which in turn increases the speed of the rotating rod 12 and the fan blade 13. The rotation of the fan blade 13 creates a negative pressure airflow that draws the dust in the outer cylinder 1 into the dust collection box 10. Water from the external water supply equipment is transported to the spray head 16 through the water pipe 15. The water sprayed by the spray head 16 comes into contact with the dust to form mud, thus achieving dust suppression.
[0035] The bottom surface of the dust collection box 10 is inclined, and the mud slides to the discharge pipe 17 with a valve at the lower end of the rear side wall for periodic discharge, while the purified air is discharged through the exhaust pipe 14 on the right side wall. Example
[0036] Please see Figure 5 The difference between this embodiment and embodiment one is that: a filter screen 20 is detachably installed inside the dust collection box 10, and the filter screen 20 is located below the fan blade 13; a sealed box door is provided on the side wall of the dust collection box 10.
[0037] The slurry can be filtered through the filter screen 20 to achieve solid-liquid separation, and precious metal catalyst dust can be filtered and collected. The filter screen 20 can be cleaned by opening the sealed box door.
[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0039] 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 ball milling apparatus for processing precious metal catalysts that facilitates dust reduction, comprising an outer cylinder (1) and a ball milling filter cylinder (2), wherein the bearings of the ball milling filter cylinder (2) penetrate the front and rear side walls of the outer cylinder (1), and a plurality of grinding steel balls are placed inside the ball milling filter cylinder (2), characterized in that: Four support columns (3) are fixedly installed on the surface of the outer cylinder (1), and a base plate (4) is fixedly installed on the bottom surface of the support columns (3). A feed hopper (5) is provided through the central bearing of the front side wall of the ball mill filter cylinder (2), and the feed hopper (5) is fixedly installed on the top surface of the base plate (4) by a straight rod. A guide hopper (6) is fixedly provided through the bottom of the outer cylinder (1), and a discharge cover is detachably provided at the bottom of the guide hopper (6). A dust suppression mechanism is connected to the top of the outer cylinder (1).
2. The ball mill apparatus for processing precious metal catalysts with easy dust reduction as described in claim 1, characterized in that, The top surface of the base plate (4) is fixedly mounted with a motor (7) via a base, and the shaft end of the motor (7) is fixedly mounted with a drive gear (8). The drive gear (8) meshes with a driven gear (9), and the driven gear (9) is fixedly mounted on the front end of the outer wall of the ball mill filter cylinder (2).
3. The ball mill apparatus for processing precious metal catalysts with easy dust reduction as described in claim 1, characterized in that, The dust suppression mechanism includes a dust suppression box (10), which is fixedly installed on the rear end of the top surface of the base plate (4). The front side wall of the dust suppression box (10) is fixedly connected to one end of the suction pipe (11), and the other end of the suction pipe (11) is fixedly connected to the top of the outer cylinder (1). A rotating rod (12) is provided through the transverse bearing on the front side wall of the dust suppression box (10), and a fan blade (13) is fixedly installed coaxially at the rear end of the rotating rod (12). An exhaust pipe (14) is fixedly installed through the right side wall of the dust suppression box (10).
4. The ball mill apparatus for processing precious metal catalysts with easy dust reduction as described in claim 3, characterized in that, The dust suppression mechanism also includes a water supply pipe (15), which is horizontally fixed through the upper end of the rear side wall of the dust suppression box (10) and is connected to an external water supply device. Multiple spray heads (16) are equidistantly connected and fixedly installed at the bottom of the water supply pipe (15), and the spray heads (16) are located inside the dust suppression box (10). A discharge pipe (17) with a valve is fixedly installed through the lower end of the rear side wall of the dust suppression box (10).
5. The ball mill apparatus for processing precious metal catalysts with easy dust reduction according to claim 3, characterized in that, The front end of the rotating rod (12) is coaxially and fixedly connected to the output shaft end of the gearbox (18), and the gearbox (18) is fixedly installed on the top surface of the base plate (4). The input shaft end of the gearbox (18) is coaxially and fixedly connected to the transmission shaft (19), and the transmission shaft (19) is fixedly installed at the center of the rear side wall of the ball mill filter cylinder (2).
6. The ball mill apparatus for processing precious metal catalysts with easy dust reduction according to claim 3, characterized in that, The dust collection box (10) is equipped with a detachable filter screen (20) inside, and the filter screen (20) is located below the fan blade (13). The side wall of the dust collection box (10) is provided with a sealed door.