Waste recovery and magnetic separation device for silica sand production

Abstract

The utility model discloses a waste recovery magnetic separation device for silica sand production, which comprises a box body, the top of the box body is provided with a feed hopper, the side of the box body is fixedly provided with a first motor and a second motor, the output end of the first motor is provided with a cam, the side of the cam is provided with a screen frame in a contact manner, the other side of the screen frame is fixedly provided with a connecting rod, and the connecting rod is connected with a motor. A limiting plate is arranged on the side of the connecting rod and slidably connected with a sleeve, a spring is arranged on the side of the limiting plate, a rotating rod is arranged at the output end of the second motor, the rotating rod is sleeved with a driving gear, and the side of the driving gear is connected with a driven gear in a meshed mode. By the adoption of the technical scheme, the waste recovery and magnetic separation device for silica sand production can shake fed silica sand so that the silica sand can be flatly laid on the magnetic suction roller, the magnetic separation effect on metal fragments is improved, and the situation that the magnetic separation effect on the silica sand is affected due to the fact that many metal fragments are accumulated on the surface of the magnetic suction roller is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of silica sand production, in particular to a waste material recovery magnetic separation device for silica sand production. Background Art

[0002] In recent years, with the rapid development of the silicon solar energy industry, market competition has become increasingly fierce. In order to reduce the production cost of silicon wafers and improve the competitiveness of silicon wafers in the market, it is necessary to recycle and reuse the waste silicon materials generated in the production process. The recycled broken silicon materials are contaminated by magnetic metals such as iron, cobalt, and nickel, which will cause defects in silicon wafers and seriously affect the efficiency of silicon wafer cells. Therefore, the magnetic separation of silicon materials has become an important link affecting silicon wafers. The existing silica sand magnetic separation device uses the electrified adsorption effect of the magnetic roller to adsorb the metal fragments in the silica sand and complete the magnetic separation work. However, when this method is used, when the required silica sand is directly added, the silica sand is easy to clump on the upper end of the magnetic separation roller, causing the metal fragments inside the silica sand to be unable to be effectively adsorbed. In addition, during the long magnetic separation process, the magnetic roller is prone to accumulate metal fragments on its surface, affecting subsequent work. For this reason, we propose a waste recovery magnetic separation device for silica sand production. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a waste recovery magnetic separation device for silica sand production to solve the problems raised in the above background technology.

[0004] The utility model provides a waste recovery magnetic separation device for silica sand production, comprising a box body, a feed hopper provided on the top of the box body, a first motor and a second motor fixedly provided on the side of the box body, a cam provided on the output end of the first motor, a screen frame provided on the side of the cam, a connecting rod fixedly provided on the other side of the screen frame, a limit plate provided on the side of the connecting rod, a sliding connection sleeve provided on the limit plate, a spring provided on the side of the limit plate, a rotating rod provided on the output end of the second motor, a driving gear provided on the outside of the rotating rod, a driven gear meshed with the side of the driving gear, the driven gear provided on the other side of the rotating rod, a magnetic roller provided on the outside of the two rotating rods, collecting boxes provided on both sides of the box body, and a scraper provided at the feed port on the side of the collecting box.

[0005] In the above solution, supporting legs are fixedly provided at the lower end of the box.

[0006] In the above solution, a cover plate is movably provided at the upper end of the feed hopper, and a handle is provided on the top of the cover plate.

[0007] In the above solution, a sliding rod is provided on the upper side of the box body, and the sliding rod is slidably connected to the screen frame.

[0008] In the above solution, one end of the spring is connected to the side of the limiting plate, and the other end is connected to the inner wall of the sleeve.

[0009] In the above solution, the scraper is a rubber scraper.

[0010] In the above solution, a guide plate is fixedly provided in the box body, and a collection box is synchronously provided at the discharge end of the guide plate.

[0011] The advantages and beneficial effects of the utility model are as follows: the utility model provides a waste recovery magnetic separation device for silica sand production, which can shake the input silica sand through the feed hopper, the first motor, the cam, the screen frame, the slide rod, the sleeve, the connecting rod, the limit plate and the spring, so that the silica sand is spread flat on the magnetic suction roller, thereby improving the magnetic separation effect of metal fragments; through the second motor, the driving gear, the driven gear, the magnetic suction roller, the scraper and the collection box, the magnetic suction rollers at two locations can improve the magnetic separation effect, and can automatically scrape off the metal fragments on the surface of the magnetic suction roller, thereby avoiding the accumulation of a large amount of metal fragments on the surface of the magnetic suction roller and affecting the magnetic separation effect of the silica sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0015] Figure 3 This is a structural diagram of part A of the present utility model.

[0016] Figure 4 This is a top view of the driving gear of the present utility model.

[0017] Figure 5 It is a side view of the driving gear of the present utility model.

[0018] In the figure: 1, box body 11, support legs 12, feed hopper 13, cover plate 14, handle 2, first motor 21, cam 22, screen frame 23, slide rod 3, sleeve 31, connecting rod 32, limit plate 33, spring 4, second motor 41, rotating rod 42, driving gear 43, driven gear 44, magnetic roller 45, scraper 46, collection box 47, guide plate. DETAILED DESCRIPTION

[0019] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] like Figure 1-5 As shown, the utility model is a waste recovery magnetic separation device for silica sand production, comprising a box body 1, a feed hopper 12 is provided on the top of the box body 1, and the silica sand required for recovery and screening is injected into the feed hopper 12.

[0021] The box body 1 is fixed with a first motor 2 and a second motor 4 on the side thereof, a cam 21 is provided at the output end of the first motor 2, a screen frame 22 is contacted on the side of the cam 21, a connecting rod 31 is fixed on the other side of the screen frame 22, a limit plate 32 is provided on the side of the connecting rod 31, the limit plate 32 is slidably connected to the sleeve 3, a spring 33 is provided on the side of the limit plate 32, when silica sand is put into the feed hopper 12, the silica sand enters the screen frame 22, and by turning on the external power switch of the first motor 2, the cam 21 at the output end of the first motor 2 starts to rotate in the box body 1, and the rotation of the cam 21 can push the side screen frame 22 to move in the box body 1, and when the screen frame 22 moves to one side, the limit plate 32 is pushed by the connecting rod 31. One end of the spring 33 is connected to the side of the limit plate 32, and the other end is connected to the inner wall of the sleeve 3. The limit plate 32 is pushed by the connecting rod 31 to slide in the sleeve 3. The limit plate 32 can squeeze the spring 33. When the cam 21 rotates to the other side, the compressed spring 33 needs to return to its original state, which can push the limit plate 32, and then the connecting rod 31 pushes the screen frame 22 to move to the other side. The screen frame 22 can then move left and right in the box body 1. On the one hand, it can filter large impurities accumulated on the surface of the silica sand. On the other hand, it can spread the silica sand when it is put into the box body 1, avoiding that when the silica sand is directly put into the surface of the magnetic roller 44 in blocks, it is easy for the metal fragments accumulated inside the silica sand to not be adsorbed by the magnetic roller 44, affecting the magnetic separation effect.

[0022] The output end of the second motor 4 is provided with a rotating rod 41, and a driving gear 42 is sleeved on the outside of the rotating rod 41. The driving gear 42 is meshed and connected to a driven gear 43 on the side. The driven gear 43 is sleeved on another rotating rod 41, and magnetic rollers 44 are sleeved on the outside of the two rotating rods 41. When the silica sand enters the box body 1, by turning on the external power switch of the second motor 4, the rotating rod 41 at the output end of the second motor 4 starts to rotate. The rotation of the rotating rod 41 can drive the driving gear 42 fixed on its outside to rotate. The rotation of the driving gear 42 can drive the driven gear 43 meshed and connected on the side to rotate. The driven gear 43 drives the rotating rod 41 connected to it to rotate. Therefore, when the second motor 4 starts to rotate, it can drive the two magnetic rollers 44 to rotate. The rotation of the two magnetic rollers 44 can improve the random adsorption effect of the metal inside the silica sand.

[0023] Collection boxes 46 are provided on both sides of the box body 1, and scrapers 45 are provided at the feed port on the side of the collection box 46. When metal fragments accumulate on the surface of the magnetic roller 44, the scraper 45 is a rubber scraper. The rubber scraper is provided to prevent the scraper from hitting the magnetic roller 44 and causing damage to the magnetic roller 44 body. The scraper 45 scrapes the metal fragments on the surface of the magnetic roller 44 into the collection box 46 for centralized collection.

[0024] In the above solution, a support leg 11 is fixedly provided at the lower end of the box body 1 .

[0025] In the above scheme, a cover plate 13 is movably provided at the upper end of the feed hopper 12, and a handle 14 is provided on the top of the cover plate 13. Through the provided cover plate 13, after the silica sand is injected into the box body 1, the cover plate 13 can be easily clamped on the top of the feed hopper 12 through the handle 14, so as to prevent the dust and silica sand inside the box body 1 from splashing to the outside and causing environmental pollution.

[0026] In the above scheme, a slide rod 23 is provided on the upper side of the box body 1, and the slide rod 23 is slidably connected to the screen frame 22. The provided slide rod 23 can guide the shaking of the screen frame 22 and ensure the stability of the screen frame 22 moving left and right in the box body 1.

[0027] In the above solution, a guide plate 47 is fixedly provided in the box body 1, and a collection box 46 is synchronously provided at the discharge end of the guide plate 47. The silica sand after magnetic separation is guided by the guide plate 47 and enters the collection box 46 at the lower end for centralized collection.

[0028] Working principle:

[0029] This type of magnetic separation device for recycling waste for silica sand production is designed to work by putting the silica sand waste that needs to be magnetically separated into the box body 1, closing the cover plate 13, and turning on the switch of the first motor 2. The first motor 2 causes the cam 21 to push the screen frame 22. The shaking of the screen frame 22 causes the silica sand to shake left and right, and can be flatly spread and guided to two magnetic rollers 44. By turning on the external power switch of the second motor 4, the two magnetic rollers 44 in the box body 1 are rotated to fully absorb the metal fragments inside the silica sand. The silica sand after magnetic separation is guided by the guide plate 47 into the collection box 46 at the lower end for centralized collection.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A magnetic separation device for recycling waste materials used in silica sand production, comprising a housing (1), characterized in that: A feed hopper (12) is provided on the top of the box body (1), a first motor (2) and a second motor (4) are fixedly provided on the side of the box body (1), a cam (21) is provided on the output end of the first motor (2), a screen frame (22) is provided on the side of the cam (21), a connecting rod (31) is fixed on the other side of the screen frame (22), a limiting plate (32) is provided on the side of the connecting rod (31), the limiting plate (32) is slidably connected to the sleeve (3), and a spring is provided on the side of the limiting plate (32). A spring (33) is provided at the output end of the second motor (4), a rotating rod (41) is provided on the outside of the rotating rod (41), a driving gear (42) is sleeved on the side of the driving gear (42), and a driven gear (43) is meshed and connected to the side of the driving gear (42), and the driven gear (43) is sleeved on the other rotating rod (41), and magnetic rollers (44) are sleeved on the outside of the two rotating rods (41), and collecting boxes (46) are provided on both sides of the box body (1), and a scraper (45) is provided at the feed port on the side of the collecting box (46).

2. A silica sand production waste recovery magnetic separation device according to claim 1, characterized in that: The lower end of the box body (1) is fixedly provided with a supporting leg (11).

3. A silica sand production waste recovery magnetic separation device according to claim 1, characterized in that: A cover plate (13) is movably provided at the upper end of the feed hopper (12), and a handle (14) is provided at the top of the cover plate (13).

4. A silica sand production waste recovery magnetic separation device according to claim 1, characterized in that: A sliding rod (23) is provided on the upper side of the box body (1), and the sliding rod (23) is slidably connected to the screen frame (22).

5. A silica sand production waste recovery magnetic separation device according to claim 1, characterized in that: One end of the spring (33) is connected to the side of the limiting plate (32), and the other end is connected to the inner wall of the sleeve (3).

6. A silica sand production waste recovery magnetic separation device according to claim 1, characterized in that: The scraper (45) is a rubber scraper.

7. A silica sand production waste recovery magnetic separation device according to claim 1, characterized in that: A guide plate (47) is fixedly provided in the box body (1), and a collecting box (46) is synchronously provided at the discharge end of the guide plate (47).

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