Particle screening device for platinum group metal recovery

Abstract

The particle screening device comprises a screening box and an outer cover, the outer cover is arranged in the middle of one side of the top of the screening box, a rotating pipe is arranged in the middle of the top of the interior of the screening box, and a first brush strip and a second brush strip which are opposite are arranged on the two sides of the rotating pipe at the tops and the bottoms of a third screening plate, a second screening plate and a first screening plate. The top end of the rotating pipe in the screening box extends into the outer cover through a bearing, a dust collection box is arranged at the top end of one side of the screening box, filter cotton is arranged in the dust collection box, a dust suction pipe is arranged in the middle of the top of the dust collection box, one end of the dust suction pipe is connected with the rotating pipe, and the other end of the dust suction pipe extends to the position below the filter cotton. The top and the bottom of the first sieve plate, the second sieve plate and the third sieve plate are cleaned, scraps attached to the inner walls of the bottom ends are scraped, the screening effect can be improved, dust can be sucked into the dust collection box during screening, and the surrounding environment is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of platinum group metal recovery, in particular to a particle screening device for platinum group metal recovery. Background Art

[0002] Platinum group metals are known for their particularly valuable properties and rare resources. Together with gold and silver, they are called "precious metals". In the face of resource shortages, platinum group metals can be recycled to reduce environmental pollution and promote sustainable development. During the recycling process, they need to be screened and graded to facilitate subsequent processing and use.

[0003] In the prior art, a general screening device can only brush the top of the screen plate during screening, but cannot brush the bottom, which reduces the screening and grading effect. In addition, during screening, metal dust will fall with the screen and fly in the air. If it is not absorbed, it will cause certain pollution to the surrounding environment. Utility Model Content

[0004] The purpose of the utility model is to provide a particle screening device for recovery of platinum group metals to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a particle screening device for platinum group metal recovery, comprising a screening box and an outer cover, the outer cover is provided at the middle position on one side of the top of the screening box, and a sieve plate 1 is provided above the screening box, a sieve plate 2 is provided in the screening box below the sieve plate 1, and a sieve plate 3 is provided in the screening box below the sieve plate 2, a rotating tube is provided at the middle position on the top of the screening box, and ash suction holes are evenly provided on the rotating tube in the screening box, the bottom end of the rotating tube extends to the bottom of the sieve plate 3 through a bearing, and opposite brush strips 1 and brush strips 2 are provided on both sides of the top and bottom rotating tubes of the sieve plate 3, the sieve plate 2 and the sieve plate 1, and the top end of the rotating tube in the screening box extends to the outer cover through a bearing. The dust collecting box is provided with a dust collecting pipe at the top of one side of the screening box, and filter cotton is provided in the dust collecting box. An ash suction pipe is provided in the middle position of the top of the dust collecting box, and one end of the ash suction pipe is connected to the rotating pipe, and the other end of the ash suction pipe extends to the bottom of the filter cotton, so that the rotating pipe drives the brush bar 1 and the brush bar 2 to rotate and clean the screen plate 1, the screen plate 2 and the screen plate 3 to prevent blockage, and the scraper rotates to scrape off the fine materials attached to the inner wall of the bottom end of the screening box, which can improve the screening and grading effect. During screening and grading, the dust generated when the material falls can be sucked by the rotating tube, and the dust can be sucked into the dust collecting box to contact with water and precipitate, and is blocked by the filter cotton to prevent the dust from floating out and polluting the surrounding environment.

[0006] Preferably, the bottom of the second brush strip on the outside of the rotating tube is provided with a downward protective cover, and the bottom of the two sides of the second brush strip at the bottom end of the rotating tube is provided with a scraper, and the scrapers are in contact with the inner wall of the bottom end of the screening box, so that the rotating tube drives the scraper of the second brush strip at the bottom end to rotate, so that the scraper scrapes off the debris attached to the inner wall of the screening box, which can reduce waste.

[0007] Preferably, a connecting block is provided on the side of the top of the screening box away from the outer cover, and the connecting block of the screening box is hinged with an inclined plate, and a second support plate is provided in the screening box on the side of the inclined plate close to the rotating tube, and a spring is provided between the second support plate and the inclined plate, so that when the material contacts the inclined plate, the inclined plate is buffered by the spring, the material can be bounced up, and the falling speed of the material can be reduced.

[0008] Preferably, the mesh size of sieve plate one is larger than that of sieve plate two and sieve plate three, and the mesh size of sieve plate two is larger than that of sieve plate three, and sieve plates one, two and three are all provided with downwardly inclined discharge pipes on the side away from the dust collecting box, so that sieve plates one, two and three can grade, screen and collect the materials, which is convenient for subsequent processing.

[0009] Preferably, a motor is provided on the other side of the top of the outer cover, and the output end of the motor passes through the outer cover and is fixedly connected to a gear shaft, a gear 1 is provided on the gear shaft in the outer cover, and the gear 1 and the gear 2 are meshed with each other.

[0010] Preferably, a support plate 1 is provided on the side of the dust collecting box away from the screening box, and an exhaust fan is provided on the top of the support plate 1, and the output end of the exhaust fan extends above the filter cotton.

[0011] Preferably, a liquid inlet pipe is provided on one side of the top of the dust collecting box, a liquid discharge pipe is provided at the middle position of the bottom of the dust collecting box, and a water tank is provided at the bottom of the dust collecting box.

[0012] Preferably, a feeding pipe is provided on the other side of the top of the screening box near the inclined plate, and the bottom end of the screening box is funnel-shaped, a feeding pipe is provided in the middle of the bottom of the screening box, and a sealing door is hinged on the front of the screening box.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the particle screening device for platinum group metal recovery drives gear 1 on the gear shaft to rotate through a motor, gear 1 drives gear 2 meshing with it to rotate, gear 2 drives the rotating tube to rotate, the rotating tube drives brush bar 1 and brush bar 2 to rotate and clean screen plate 1, screen plate 2 and screen plate 3 to prevent blockage, and the scraper at the bottom rotates to scrape off the fine materials attached to the inner wall of the bottom end of the screening box, which can improve the screening and grading effect, and during screening and grading, the exhaust fan can be started to absorb the dust generated when the material is screened and fallen through the dust suction pipe and the rotating tube, and the dust can be sucked into the dust collecting box to contact with water and precipitate, and is blocked by filter cotton to prevent the dust from floating out and polluting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the screening box of the present invention;

[0016] Figure 3 This is a schematic diagram of the main cross-sectional structure of the dust collection box of the present invention;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the screening box, screen plate 3 and protective cover as viewed from above;

[0018] Figure 5 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0019] In the figure: 1. Screening box; 2. Outer cover; 3. Motor; 4. Ash suction pipe; 5. Dust collection box; 6. Exhaust fan; 7. Support plate 1; 8. Feeding pipe; 9. Discharge pipe; 10. Gear 1; 11. Gear 2; 12. Scraper; 13. Screen plate 1; 14. Screen plate 2; 15. Screen plate 3; 16. Brush bar 1; 17. Brush bar 2; 18. Filter cotton; 19. Rotating tube; 20. Protective cover; 21. Support plate 2; 22. Spring; 23. Inclined plate. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-5The utility model provides an embodiment of a particle screening device for platinum group metal recovery, comprising a screening box 1 and an outer cover 2, the outer cover 2 is provided at the middle position of one side of the top of the screening box 1, and a sieve plate 13 is provided above the screening box 1, a sieve plate 2 14 is provided in the screening box 1 below the sieve plate 13, and a sieve plate 3 15 is provided in the screening box 1 below the sieve plate 2 14, a rotating tube 19 is provided at the middle position of the top of the screening box 1, and ash suction holes are evenly provided on the rotating tube 19 in the screening box 1, the bottom end of the rotating tube 19 extends to the bottom of the sieve plate 3 15 through a bearing, and the sieve plate 3 15, the sieve plate 2 14 and the sieve plate 1 13 are provided with opposite brush strips 16 and brush strips 2 17 on both sides of the rotating tube 19 at the top and bottom. The bearing extends into the outer cover 2, and the rotating tube 19 in the outer cover 2 is provided with a gear 2 11, a dust box 5 is provided at the top of one side of the screening box 1, and a filter cotton 18 is provided in the dust box 5, and an ash suction pipe 4 is provided in the middle position of the top of the dust box 5, and one end of the ash suction pipe 4 is connected to the rotating tube 19, and the other end of the ash suction pipe 4 extends to the bottom of the filter cotton 18, the bottom of the brush strip 2 17 on the outside of the rotating tube 19 is provided with a downward protective cover 20, and the bottom of both sides of the brush strip 2 17 at the bottom of the rotating tube 19 are provided with scrapers 12, and the scrapers 12 are all in contact with the inner wall of the bottom end of the screening box 1, the mesh of the sieve plate 13 is larger than the sieve plate 2 14 and the sieve plate 3 15, and the mesh of the sieve plate 2 14 is larger than the sieve plate 3 15, and the sieve plates 13, 14 and 15 are away from the dust box. 5 is provided with a discharge pipe 9 with a downward slope on one side, a motor 3 is provided on the other side of the top of the outer cover 2, and the output end of the motor 3 passes through the outer cover 2 and is fixedly connected to the gear shaft, a gear 10 is provided on the gear shaft inside the outer cover 2, and the gear 10 and the gear 2 11 are meshed with each other, a support plate 17 is provided on the side of the dust box 5 away from the screening box 1, and an exhaust fan 6 is provided on the top of the support plate 7, and the output end of the exhaust fan 6 extends to above the filter cotton 18, a liquid inlet pipe is provided on one side of the top of the dust box 5, and a drain pipe is provided in the middle position of the bottom of the dust box 5, and a water tank is provided at the bottom of the dust box 5, a feeding pipe 8 is provided on the other side of the top of the screening box 1 near the inclined plate 23, and the bottom end of the screening box 1 is funnel-shaped, a discharge pipe is provided in the middle position of the bottom of the screening box 1, and the screening box 1 The front of the screen box 1 is hinged with a sealed door, so that the material is put into the screening box 1 through the feeding pipe 8, and then the motor 3 can be started to drive the gear 10 on the gear shaft to rotate, the gear 10 drives the gear 2 11 engaged with it to rotate, the gear 2 11 drives the rotating tube 19 to rotate, and the rotating tube 19 drives the brush bar 16 and the brush bar 2 17 to rotate and clean the screen plate 13, the screen plate 2 14 and the screen plate 3 15 to prevent blockage, and the scraper 12 at the bottom is rotated to scrape off the fine materials attached to the inner wall of the bottom end of the screening box 1, which can improve the screening and grading effect. During the screening and grading, the exhaust fan 6 can be started to absorb the dust generated when the material is screened and fallen through the dust suction pipe 4 and the rotating tube 19, and the dust can be sucked into the dust collecting box 5 to contact with water and precipitate, and is shielded by the filter cotton 18 to prevent the dust from floating out.Pollution to the surrounding environment. When the screening is completed, the drainage pipe can be opened to discharge the sewage for easy collection and treatment;

[0022] A connecting block is provided on the side of the top of the screening box 1 away from the outer cover 2, and the connecting block of the screening box 1 is hinged with an inclined plate 23. A second support plate 21 is provided in the screening box 1 on the side of the inclined plate 23 close to the rotating tube 19, and a spring 22 is provided between the second support plate 21 and the inclined plate 23, so that the material contacts the inclined plate 23 when entering the screening box 1, and the inclined plate 23 can be buffered under the action of the spring 22, which can slow down the falling speed of the material and facilitate subsequent screening.

[0023] When the embodiment of the present application is in use, the material is put into the screening box 1 through the feeding pipe 8, so that the material can contact the inclined plate 23 when entering the screening box 1, and the inclined plate 23 can be buffered under the action of the spring 22, which can slow down the falling speed of the material and facilitate subsequent screening. Then the motor 3 can be started to drive the gear 10 on the gear shaft to rotate, and the gear 10 drives the gear 2 11 engaged with it to rotate, and the gear 2 11 drives the rotating tube 19 to rotate, and the rotating tube 19 drives the brush bar 16 and the brush bar 2 17 to rotate and clean the screen plate 13, the screen plate 2 14 and the screen plate 3 15, so that the material can be screened and discharged more evenly, and blockage can be prevented, and the scraper 12 at the bottom can be made smooth. Rotating and scraping off the fine materials attached to the inner wall of the bottom end of the screening box 1 can improve the screening and grading effect. During screening and grading, the brush bar 16 can be rotated to brush the materials to the discharge pipe 9 for easy unloading. At the same time, the exhaust fan 6 can be started to absorb the dust generated when the materials are screened and fallen through the dust suction pipe 4 and the rotating tube 19. The dust can be sucked into the dust collecting box 5 and precipitated in contact with water, and blocked by the filter cotton 18 to prevent the dust from floating out and polluting the surrounding environment. When the screening is completed, the drain pipe can be opened to discharge the sewage for easy collection and treatment, and then the sealed door can be opened to collect the materials remaining on the sieve plate 1 13, the sieve plate 2 14 and the sieve plate 3 15.

[0024] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0026] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0027] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A particle screening device for platinum group metal recovery, characterized by: The invention comprises a screening box (1) and an outer cover (2), wherein the outer cover (2) is provided at the middle position of one side of the top of the screening box (1), and a sieve plate 1 (13) is provided at the top of the screening box (1), a sieve plate 2 (14) is provided in the screening box (1) below the sieve plate 1 (13), and a sieve plate 3 (15) is provided in the screening box (1) below the sieve plate 2 (14), and a rotating tube (19) is provided at the middle position of the top of the screening box (1), and ash suction holes are evenly provided on the rotating tube (19) in the screening box (1), and the bottom end of the rotating tube (19) extends to the bottom of the sieve plate 3 (15) through a bearing, and the sieve plate 3 (15) and the sieve plate 2 (14) are provided. Brush strips 1 (16) and brush strips 2 (17) are provided on both sides of the top and bottom rotating tubes (19) of the screen plate 1 (13). The top end of the rotating tube (19) in the screening box (1) extends into the outer cover (2) through a bearing, and a gear 2 (11) is provided on the rotating tube (19) in the outer cover (2). A dust collecting box (5) is provided at the top end of one side of the screening box (1), and filter cotton (18) is provided in the dust collecting box (5). An ash suction pipe (4) is provided in the middle position of the top of the dust collecting box (5), and one end of the ash suction pipe (4) is connected to the rotating tube (19), and the other end of the ash suction pipe (4) extends to the bottom of the filter cotton (18).

2. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: The bottom of the second brush strip (17) on the outside of the rotating tube (19) is provided with a downward protective cover (20), and the bottom of the second brush strip (17) on both sides of the bottom of the rotating tube (19) is provided with a scraper (12), and the scraper (12) is in contact with the inner wall of the bottom of the screening box (1).

3. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: A connecting block is provided on a side of the top of the screening box (1) away from the outer cover (2), and the connecting block of the screening box (1) is hinged with an inclined plate (23). A second support plate (21) is provided in the screening box (1) on a side of the inclined plate (23) close to the rotating tube (19), and a spring (22) is provided between the second support plate (21) and the inclined plate (23).

4. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: The mesh of the sieve plate 1 (13) is larger than that of the sieve plate 2 (14) and the sieve plate 3 (15), and the mesh of the sieve plate 2 (14) is larger than that of the sieve plate 3 (15), and the sieve plate 1 (13), the sieve plate 2 (14) and the sieve plate 3 (15) are all provided with a downwardly inclined discharge pipe (9) on the side away from the dust collecting box (5).

5. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: A motor (3) is provided on the other side of the top of the outer cover (2), and the output end of the motor (3) passes through the outer cover (2) and is fixedly connected to a gear shaft. A gear 1 (10) is provided on the gear shaft in the outer cover (2), and the gear 1 (10) and the gear 2 (11) are meshed with each other.

6. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: A support plate 1 (7) is provided on the side of the dust collecting box (5) away from the screening box (1), and an exhaust fan (6) is provided on the top of the support plate 1 (7), and the output end of the exhaust fan (6) extends above the filter cotton (18).

7. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: A liquid inlet pipe is provided on one side of the top of the dust collecting box (5), a liquid discharge pipe is provided at the middle position of the bottom of the dust collecting box (5), and a water tank is provided at the bottom of the dust collecting box (5).

8. The particle screening device for platinum group metal recovery according to claim 1, characterized in that: A feeding pipe (8) is provided at a position near the inclined plate (23) on the other side of the top of the screening box (1), and the bottom end of the screening box (1) is funnel-shaped. A feeding pipe is provided at the middle position of the bottom of the screening box (1), and a sealing door is hinged on the front of the screening box (1).

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