A flotation recovery device for silicon materials in waste liquid

Abstract

The present invention discloses a flotation recovery device for silicon material in waste liquid, which relates to the technical field of flotation equipment. The device comprises a flotation box, wherein a slag discharge port is provided at the bottom of the flotation box, a valve baffle for controlling the opening and closing of the slag discharge port is provided inside the slag discharge port, a rotating collection mechanism for separating silicon material from a suspension is provided at the top of the flotation box, a mixing mechanism for accelerating the fusion of silicon material and the suspension is provided inside the flotation box, the rotating collection mechanism comprises a mounting shaft horizontally arranged above the flotation box, and a rotatable salvage plate is used to rotate in the suspension by providing the rotating collection mechanism. During the rotation of the salvage plate, foam and silicon material are scooped up from the suspension. Through continuous rotation, the salvage plate can contact foam layers at different positions of the flotation box, thereby improving the comprehensiveness and uniformity of collection, helping to effectively remove thinner or thicker foam layers, and facilitating better collection of silicon material.

Description

Technical Field

[0001] The present invention relates to the technical field of flotation equipment, in particular to a flotation recovery device for silicon material in waste liquid. Background Art

[0002] The silicon cutting process generates a large amount of waste liquid, which often contains high-value components such as silicon and silicon carbide. To effectively recycle resources while reducing environmental pollution, researchers have developed a variety of recovery technologies, including froth flotation, a commonly used recovery method particularly suitable for separating silicon and silicon carbide from waste liquid.

[0003] There are currently two types of flotation equipment foam discharge devices. One uses gravity to allow the flotation foam to flow out on its own, and the other uses scrapers and other similar devices to forcibly discharge the flotation foam. If the thickness of the foam layer is uneven, the scraper may not be able to effectively remove all the foam from the flotation tank, making this method limited and unable to effectively and quickly collect the foam and the target minerals in the foam.

[0004] Therefore, the present invention proposes a flotation recovery device for silicon material in waste liquid to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0005] In view of the above problems, the present invention provides a flotation recovery device for silicon materials in wastewater, which can effectively solve the problem that scrapers in the prior art cannot effectively collect target minerals. In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0006] The present invention discloses a flotation recovery device for silicon material in waste liquid, comprising a flotation box, a slag discharge port being provided at the bottom of the flotation box, a valve baffle being provided inside the slag discharge port for controlling the opening and closing of the slag discharge port, a rotating collection mechanism being provided at the top of the flotation box for separating silicon material from a suspension, and a mixing mechanism being provided inside the flotation box for accelerating the fusion of silicon material and the suspension;

[0007] The rotating collection mechanism includes a mounting shaft horizontally arranged above the flotation box, with salvage plates symmetrically fixedly connected to the side surfaces of the mounting shaft, a U-shaped side plate fixedly connected to the edge of the surface of each salvage plate, an L-shaped slide symmetrically fixedly connected to the surface of the salvage plate, and a rectangular tube fixedly connected to one end of each L-shaped slide, the rectangular tube extending to both sides of the salvage plate, the rotating collection mechanism also includes a shaking mechanism for assisting the movement of silicon material on the salvage plate, and the rotating collection mechanism also includes a reciprocating mechanism for driving the salvage plate to move horizontally along the top of the flotation box.

[0008] Furthermore, the shaking mechanism includes a first sliding rod horizontally slidably connected to the surface of the salvage plate, one end of the first sliding rod extends to the cavity of the mounting shaft, the first sliding rod is fixedly connected to the second sliding rod at one end away from the mounting shaft, the second sliding rod is fixedly connected to a hammer at one end away from the first sliding rod, the hammer is fitted together with the side surface of the side plate, the side surface of the second sliding rod is fixedly connected to a first spring, and the first spring is fixedly connected to the side surface of the L-shaped slide plate at one end away from the second sliding rod.

[0009] Furthermore, the shaking mechanism also includes a fixed rod that slides through the middle cavity of the mounting shaft, the outside of the fixed rod is fixedly connected with a protrusion in a ring-shaped and equiangular manner, and a slider is slidably connected in the groove formed between two adjacent protrusions, and the slider is fixedly connected to the first slide rod away from the second slide rod. Both ends of the fixed rod are fixedly connected with a sleeve frame, and each sleeve frame is sleeved with a collection box.

[0010] Furthermore, the reciprocating mechanism includes a support frame symmetrically connected to the outside of the mounting shaft, the top of the support frame is fixedly connected to the side of the collection box, the bottom of each support frame is fixedly connected to a driving wheel through a connecting shaft, the top of the flotation box is symmetrically fixedly connected to a slide rail, and the driving wheel at the bottom of each support frame is respectively rollingly connected in the slide rail.

[0011] Furthermore, the reciprocating mechanism also includes a transmission shaft fixedly connected to the driving wheel shaft, the transmission shaft has a first pulley rotatably sleeved on the outside, the mounting shaft has a second pulley fixedly connected to the outside, the first pulley and the second pulley are connected via a synchronous belt transmission, the transmission shaft has a ratchet fixedly connected to the outside, a pawl is rotatably connected in the cavity of the first pulley, and the pawl is engaged with the ratchet.

[0012] Furthermore, the mixing mechanism includes a driving shaft and a driven shaft horizontally symmetrically connected to the inside of the flotation box, the driving shaft and the driven shaft are connected via a transmission belt, and an L-plate is fixedly connected to the surface of the transmission belt.

[0013] Furthermore, the mixing mechanism also includes an aeration mechanism for generating bubbles, and the aeration mechanism includes an exhaust pipe that is symmetrically connected to the inside of the flotation box, and each exhaust pipe has air injection holes equidistantly opened on the side surface. Both ends of the two exhaust pipes pass through the side wall of the flotation box, and one end of the exhaust pipe is fixedly connected to the external air supply equipment through a hose.

[0014] Furthermore, each of the exhaust pipes is fixedly connected to a first connecting rod at one end away from the air supply device, and each of the first connecting rods is provided with a first slide groove at one end away from the exhaust pipe. The outside of the flotation box is symmetrically and slidingly connected to an L-shaped pull rod, and the side protrusion of each L-shaped pull rod extends into the first slide groove. The L-shaped pull rod is slidingly connected to the first connecting rod, and the L-shaped pull rod is slidingly connected to a guide rod at one end away from the first slide groove. The guide rod is fixedly connected to the outside of the flotation box, and discs are symmetrically and fixedly connected to both ends of the driven shaft, and a wedge is fixedly connected to the side of each disc, and the inclined surface of the wedge is slidingly connected to the side of the L-shaped pull rod, and a tension spring is fixedly connected between the two L-shaped pull rods.

[0015] Furthermore, the mixing mechanism also includes a spreading mechanism for spreading the waste inside the flotation box, the spreading mechanism includes a cylindrical outer shell rotatably connected to the outside of the flotation box, the side of the outer shell is provided with a notch for discharging the waste, a rotating disk is rotatably connected to the inside of the outer shell, a plurality of vertical plates are fixedly connected at equal angles to the upper surface of the rotating disk, a feed hopper is fixedly connected to the top of the outer shell, a second connecting rod is fixedly connected to the bottom of the outer shell, and a second chute is provided at the end of the second connecting rod away from the outer shell.

[0016] Furthermore, the spreading mechanism also includes a moving rod vertically slidably connected to the outside of the flotation box, the protrusion on the outside of the moving rod extends into the inside of the second slide groove, the moving rod is slidably connected to the second connecting rod, the top of the moving rod is fixedly connected to a second spring, the second spring is fixedly connected to the side protrusion of the flotation box away from one end of the moving rod, one end of the driving shaft is fixedly connected to a cam, and the cam is slidably connected to the bottom of the moving rod.

[0017] Beneficial effects:

[0018] 1. This device is equipped with a rotating collection mechanism. A rotating salvage plate rotates in the suspension. During the rotation of the salvage plate, foam and silicon materials are picked up from the suspension. Through continuous rotation, the salvage plate can contact the foam layer at different positions of the flotation box, thereby improving the comprehensiveness and uniformity of the collection, helping to effectively remove thin or thick foam layers, and facilitating better collection of silicon materials.

[0019] 2. This device is equipped with a shaking mechanism. During the rotation of the salvage plate, the hammer continuously strikes the side plate. When the salvage plate is subjected to periodic impacts, the vibration generated will be transmitted to the salvaged foam and silicon material, making the connection between the bubbles loose, prompting the foam and silicon material attached to the salvage plate to detach faster and slide into the collection container.

[0020] 3. This device is equipped with a mixing mechanism. During the mixing process of the waste and the suspension, the L-plate stirs in the suspension. The stirring of the L-plate can generate sufficient turbulence to keep the solid waste particles in suspension, ensuring that the waste and the suspension in the entire flotation box are fully mixed, avoiding excessively high or low concentrations in local areas, increasing the contact opportunities between substances, and thus accelerating the flotation rate. After the flotation is completed, the L-plate can be used to scrape the waste at the bottom of the flotation box and collect the waste together, making it easier to clean up the debris inside the flotation box.

[0021] 4. This device is equipped with an aeration mechanism. When aerating the suspension, the exhaust pipe swings back and forth, so that the exhaust pipe can release bubbles at different positions to avoid bubbles concentrating in a certain area. As the exhaust pipe swings, the bubbles will rise along different paths, increasing the chance of collision with particles in the suspension and improving flotation efficiency.

[0022] 5. This device is equipped with a scattering mechanism. It uses a rotating disk to scatter the waste into the flotation box while causing the outer shell to swing up and down, so that the waste is evenly scattered into the flotation box to avoid local accumulation. It can ensure that the waste can fully contact the bubbles, thereby further improving the flotation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention from the first viewing angle.

[0025] Figure 2 This is a three-dimensional structural diagram from a second viewing angle of the present invention.

[0026] Figure 3 For the present invention Figure 2 A magnified view of the structure at point A in the middle.

[0027] Figure 4 It is a three-dimensional structural diagram of the rotating collection mechanism in the present invention.

[0028] Figure 5 It is a three-dimensional structural diagram of the shaking mechanism in the present invention.

[0029] Figure 6 It is a longitudinal cross-sectional view of the shaking mechanism in the present invention.

[0030] Figure 7 For the present invention Figure 6A magnified view of the structure at point B.

[0031] Figure 8 It is a three-dimensional structural diagram of the mixing mechanism in the present invention.

[0032] Figure 9 It is an exploded view of the throwing mechanism in the present invention.

[0033] Figure 10 It is a three-dimensional structural diagram of the spreading mechanism in the present invention.

[0034] Figure 11 It is a three-dimensional structural diagram of the aeration mechanism in the present invention.

[0035] Figure 12 Schematic diagram of the connection between the disc and the wedge in the present invention.

[0036] Figure 13 It is a longitudinal cross-sectional view of the first pulley in the present invention.

[0037] The reference numerals in the figure represent: 10, flotation box; 20, rotating collection mechanism; 201, mounting shaft; 202, salvage plate; 203, side plate; 204, L-shaped slide plate; 205, rectangular tube; 206, collection box; 30, shaking mechanism; 301, first slide bar; 302, second slide bar; 303, hammer; 304, first spring; 305, slider; 306, fixing rod; 307, bump; 308, sleeve; 40, reciprocating mechanism; 401, support frame; 402, driving wheel; 403, slide rail; 404, first pulley; 405, second pulley; 406, synchronous belt; 407, ratchet; 408, pawl; 409, transmission shaft; 50, mixing mechanism; 501, driving shaft; 502, driven shaft; 503, transmission belt; 504, L-plate; 60, aeration mechanism; 601, exhaust pipe; 602, first connecting rod; 603, first chute; 604, L-shaped pull rod; 605, tension spring; 606, disc; 607, wedge; 608, guide rod; 70, spreading mechanism; 701, outer shell; 702, rotating disc; 703, vertical plate; 704, second connecting rod; 705, second chute; 706, moving rod; 707, cam; 708, second spring; 709, feed hopper; 80, slag discharge port; 90, valve baffle. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] The present invention will be further described below with reference to the embodiments.

[0040] See Figures 1 to 13 The present embodiment provides a flotation recovery device for silicon material in waste liquid, comprising a flotation box 10, a slag discharge port 80 being provided at the bottom of the flotation box 10, a valve baffle 90 being provided inside the slag discharge port 80 for controlling the opening and closing of the slag discharge port 80, a rotating collection mechanism 20 being provided at the top of the flotation box 10 for separating the silicon material from the suspension, and a mixing mechanism 50 being provided inside the flotation box 10 for accelerating the fusion of the silicon material and the suspension. When flotating the silicon material, the waste liquid containing the silicon material is first filtered to obtain solid waste containing the silicon material. Thereafter, the solid waste and the suspension are mixed. After mixing, the suspension is aerated to generate bubbles, which are wrapped around the surface of the silicon material, thereby carrying the silicon material to the surface. The floating foam and the silicon material are then collected.

[0041] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The rotating collection mechanism 20 includes a mounting shaft 201 positioned horizontally above the flotation tank 10. Salvage plates 202 are symmetrically fixedly attached to the sides of the mounting shaft 201. Each salvage plate 202 has a U-shaped side plate 203 fixedly attached to its edge. L-shaped slides 204 are symmetrically fixedly attached to the surfaces of the salvage plates 202. Each L-shaped slide 204 has a rectangular tube 205 fixedly attached to one end. The rectangular tubes 205 extend to both sides of the salvage plate 202. The rotating collection mechanism 20 also includes a shaking mechanism 30 that assists in moving the silicon material on the salvage plates 202. The rotating collection mechanism 20 also includes a reciprocating mechanism 40 that drives the salvage plates 202 to move horizontally along the top of the flotation tank 10. The two L-shaped slides 204 form a V-shaped diversion structure on the surface of the salvage plates 202. The salvaged foam and silicon material are discharged into the collection tank 206 through the diversion structure formed by the two L-shaped slides 204.

[0042] During specific operation, the mounting shaft 201 drives the salvage plate 202 to rotate. When the salvage plate 202 enters the suspension, the area where the salvage plate 202 is immersed in the suspension is the area between the two L-shaped slides 204 and the side plates 203. The salvage plate 202 is located between the two L-shaped slides 204 and the side plates 203 to pick up the foam and silicon material from the suspension. The side plates 203 block the picked-up foam and silicon material, and then the salvage plate 202 continues to rotate upward. Under the action of gravity, the foam and silicon material on the surface of the salvage plate 202 slide toward the surface of the L-shaped slide 204. When the foam and silicon material slide to After the foam and silicon material reach the surface of the L-shaped slide 204, they slide along the surface of the L-shaped slide 204 toward the rectangular tube 205. Finally, the foam and silicon material slide from the rectangular tube 205 into the collection box 206. The foam and silicon material in the collection box 206 are filtered to remove most of the moisture, and then washed with clean water or a specific washing liquid to further remove impurities. The washed material usually needs to be dried to obtain the silicon material. The salvage plate 202 can contact the foam layer at different positions of the flotation box 10, thereby improving the comprehensiveness and uniformity of the collection, helping to effectively remove thinner or thicker foam layers, and facilitating better collection of silicon materials.

[0043] See Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The shaking mechanism 30 includes a first sliding rod 301 horizontally slidably connected to the surface of the salvage plate 202, one end of the first sliding rod 301 extends to the cavity of the mounting shaft 201, the first sliding rod 301 is fixedly connected to the second sliding rod 302 at one end away from the mounting shaft 201, the second sliding rod 302 is fixedly connected to the hammer 303 at one end away from the first sliding rod 301, the hammer 303 is fitted together with the side surface of the side plate 203, the side surface of the second sliding rod 302 is fixedly connected to the first spring 304, and the end of the first spring 304 away from the second sliding rod 302 is fixedly connected to the side surface of the L-shaped slide plate 204.

[0044] The shaking mechanism 30 also includes a fixed rod 306 that slides through the middle cavity of the installation shaft 201. The outside of the fixed rod 306 is fixedly connected with a protrusion 307 in a ring shape at equal angles. A slider 305 is slidably connected in the groove formed between two adjacent protrusions 307. The slider 305 is fixedly connected to the end of the first slide rod 301 away from the second slide rod 302. Both ends of the fixed rod 306 are fixedly connected with a sleeve frame 308, and each sleeve frame 308 is sleeved with a collection box 206.

[0045] When the cam 302 is in the state of rotation, the cam 302 is in the state of rotation of the first and second cams 303. When the cam 302 is in the state of rotation, the cam 302 is in the state of rotation of the first and second cams 303. When the cam 302 is in the state of rotation, the cam 302 is in the state of rotation of the first and second cams 303.

[0046] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 13 The reciprocating mechanism 40 includes a support frame 401 symmetrically connected to the outside of the mounting shaft 201, the top of the support frame 401 is fixedly connected to the side of the collection box 206, and the bottom of each support frame 401 is fixedly connected to a driving wheel 402 through a connecting shaft. The top of the flotation box 10 is symmetrically fixedly connected to a slide rail 403, and the driving wheel 402 at the bottom of each support frame 401 is respectively rollingly connected in the slide rail 403.

[0047] The reciprocating mechanism 40 also includes a transmission shaft 409 fixedly coupled to the drive wheel 402. A first pulley 404 is rotatably sleeved on the transmission shaft 409. A second pulley 405 is fixedly coupled to the mounting shaft 201. The first pulley 404 and the second pulley 405 are connected via a synchronous belt 406. A ratchet 407 is fixedly coupled to the transmission shaft 409. A pawl 408 is rotatably coupled to the cavity of the first pulley 404 and meshes with the ratchet 407. The drive wheel 402 has its own internal motor, which directly drives the rotation of the drive wheel 402.

[0048] During operation, the driving wheel 402 moves horizontally along the slide rail 403. During the rotation of the driving wheel 402, under the restriction of the pawl 408, the driving wheel 402 drives the ratchet 407 to rotate through the transmission shaft 409. Since the ratchet 407 is fixedly connected to the first pulley 404, the transmission shaft 409 can drive the first pulley 404 to rotate synchronously. The first pulley 404 drives the second pulley 405 to rotate through the synchronous belt 406. The second pulley 405 synchronously drives the installation shaft 201 to rotate on the support frame 401. The rotating installation shaft 20 1 allows the salvage plate 202 to salvage the foam and silicon material. After the support frame 401 moves to one end of the flotation tank 10, the support frame 401 needs to move in the opposite direction under the drive of the drive wheel 402. During the reverse movement, the pawl 408 does not restrict the ratchet 407. Therefore, when the drive wheel 402 moves the support frame 401 in the opposite direction, the mounting shaft 201 does not rotate. After the support frame 401 moves in the opposite direction to the other end of the flotation tank 10, the drive wheel 402 drives the support frame 401 to move again. This time, the mounting shaft 201 rotates to salvage the foam and silicon material.

[0049] See Figure 8 The mixing mechanism 50 includes a driving shaft 501 and a driven shaft 502 that are horizontally symmetrically connected to the inside of the flotation box 10. The driving shaft 501 and the driven shaft 502 are connected to each other through a transmission belt 503, and an L-plate 504 is fixedly connected to the surface of the transmission belt 503.

[0050] During specific operation, an external motor drives the driving shaft 501 to rotate, and drives the L-plate 504 to circulate between the driving shaft 501 and the driven shaft 502 through the transmission belt 503. The L-plate 504 stirs in the suspension. The stirring of the L-plate 504 can generate sufficient turbulence to keep the solid waste particles in a suspended state, ensuring that the waste and suspension in the entire flotation box 10 are fully mixed. When the flotation operation is completed, it is necessary to open the valve baffle 90 to allow the suspension and other solid waste to be discharged from the flotation box 10 from the slag discharge port 80. The L-plate 504 is used to scrape the waste at the bottom of the flotation box 10 and collect the waste together to facilitate cleaning of debris inside the flotation box 10.

[0051] See Figure 8 、 Figure 11 and Figure 12 The mixing mechanism 50 also includes an aeration mechanism 60 for generating bubbles. The aeration mechanism 60 includes an exhaust pipe 601 symmetrically connected to the inside of the flotation box 10. Each exhaust pipe 601 has air injection holes equidistantly opened on the side. Both ends of the two exhaust pipes 601 pass through the side wall of the flotation box 10. One end of the exhaust pipe 601 is fixedly connected to the external air supply equipment through a hose.

[0052] Each exhaust pipe 601 is fixedly connected to a first connecting rod 602 at one end away from the air supply device, and a first slide groove 603 is opened at one end of each first connecting rod 602 away from the exhaust pipe 601. The outside of the flotation box 10 is symmetrically and slidingly connected to an L-shaped pull rod 604, and the side protrusion of each L-shaped pull rod 604 extends into the first slide groove 603. The L-shaped pull rod 604 is slidingly connected to the first connecting rod 602, and the end of the L-shaped pull rod 604 away from the first slide groove 603 is slidingly connected to a guide rod 608. The guide rod 608 is fixedly connected to the outside of the flotation box 10, and discs 606 are symmetrically and fixedly connected to both ends of the driven shaft 502. A wedge 607 is fixedly connected to the side of each disc 606. The inclined surface of the wedge 607 is slidingly connected to the side of the L-shaped pull rod 604, and a tension spring 605 is fixedly connected between the two L-shaped pull rods 604.

[0053] During specific operation, gas is transported from the outside to the exhaust pipe 601, and then the gas is ejected from the air injection hole on the side of the exhaust pipe 601. When the driven shaft 502 in the mixing mechanism 50 rotates, the driven shaft 502 drives the disc 606 to rotate. During the rotation of the disc 606, the wedge block 607 is synchronously driven to rotate. The inclined surface of the wedge block 607 pushes the two L-shaped pull rods 604 away from each other. The L-shaped pull rod 604 moves along the guide rod 608. The guide rod 608 provides support for the L-shaped pull rod 604. When the L-shaped pull rod 604 moves, it passes through the first The connecting rod 602 drives the exhaust pipe 601 to rotate, and then the two L-shaped pull rods 604 are pulled closer to each other by the tension spring 605. At this time, the L-shaped pull rod 604 drives the exhaust pipe 601 to rotate in the opposite direction through the first connecting rod 602. In this way, the exhaust pipe 601 is driven to swing back and forth alternately. The exhaust pipe 601 swings back and forth, so that the exhaust pipe 601 can release bubbles at different positions. As the exhaust pipe 601 swings, the bubbles will rise on different paths, increasing the chance of collision with particles in the suspension and improving flotation efficiency.

[0054] See Figure 8 、 Figure 9 and Figure 10 The mixing mechanism 50 also includes a spreading mechanism 70 for spreading the waste inside the flotation box 10. The spreading mechanism 70 includes a cylindrical outer shell 701 rotatably connected to the outside of the flotation box 10. A notch is provided on the side of the outer shell 701 for discharging the waste. A rotating disk 702 is rotatably connected to the inside of the outer shell 701. A plurality of vertical plates 703 are fixedly connected at equal angles to the upper surface of the rotating disk 702. A feed hopper 709 is fixedly connected to the top of the outer shell 701. A second connecting rod 704 is fixedly connected to the bottom of the outer shell 701. A second chute 705 is provided on the end of the second connecting rod 704 away from the outer shell 701.

[0055] The spreading mechanism 70 also includes a moving rod 706 that is vertically slidably connected to the outside of the flotation box 10. The protrusion on the outside of the moving rod 706 extends into the inside of the second slide groove 705. The moving rod 706 is slidably connected to the second connecting rod 704. The top of the moving rod 706 is fixedly connected to a second spring 708. The end of the second spring 708 away from the moving rod 706 is fixedly connected to the protrusion on the side of the flotation box 10. A cam 707 is fixedly connected to one end of the driving shaft 501, and the cam 707 is slidably connected to the bottom of the moving rod 706.

[0056] During operation, waste containing silicon material enters the outer shell 701 from the feed hopper 709. The rotating disk 702 in the outer shell 701 rotates rapidly under the drive of an external motor. The rotating disk 702 drives the vertical plate 703 to rotate synchronously to throw the falling waste particles out of the notch. At the same time, the driving shaft 501 in the mixing mechanism 50 drives the cam 707 to rotate. The protrusion of the cam 707 presses the moving rod 706 upward. The upward moving rod 706 drives the outer shell 701 to rotate upward through the second connecting rod 704. Thereafter, the protrusion of the cam 707 is separated from the contact with the moving rod 706. The elastic force of the second spring 708 pushes the moving rod 706 downward. At this time, the downward moving rod 706 drives the outer shell 701 to rotate downward through the second connecting rod 704. The outer shell 701 is alternately driven up and down by each other, so that the waste is evenly scattered into the flotation box 10, avoiding local accumulation, ensuring that the waste can fully contact the bubbles, and further improving the flotation efficiency.

[0057] Working principle:

[0058] The waste liquid containing silicon material is filtered to obtain solid waste containing silicon material. Thereafter, the solid waste is placed in a scattering mechanism 70 and scattered into the flotation box 10. At the same time, the mixing mechanism 50 mixes the solid waste and the suspension, and then the suspension is inflated through the aeration mechanism 60. The suspension is inflated to generate bubbles, and the generated bubbles wrap around the surface of the silicon material, thereby carrying the silicon material to float. Finally, the reciprocating mechanism 40 is used to drive the rotating collection mechanism 20 to move horizontally along the top of the flotation box 10. The rotating collection mechanism 20 salvages and collects the foam and silicon material. At the same time, the shaking mechanism 30 assists in accelerating the salvaged foam and silicon material into the collection box 206.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flotation recovery device for silicon material in waste liquid, characterized in that: The flotation box (10) comprises a flotation box (10), wherein a slag discharge port (80) is provided at the bottom of the flotation box (10), a valve baffle (90) is provided inside the slag discharge port (80) for controlling the opening and closing of the slag discharge port (80), a rotating collection mechanism (20) is provided at the top of the flotation box (10) for separating silicon material from a suspension, and a mixing mechanism (50) is provided inside the flotation box (10) for accelerating the fusion of silicon material and suspension; The rotating collection mechanism (20) includes a mounting shaft (201) horizontally arranged above the flotation box (10), a salvage plate (202) symmetrically fixedly connected to the side of the mounting shaft (201), a U-shaped side plate (203) fixedly connected to the edge of the surface of each salvage plate (202), an L-shaped slide plate (204) symmetrically fixedly connected to the surface of the salvage plate (202), one end of each L-shaped slide plate (204) fixedly connected to a rectangular tube (205), the rectangular tube (205) extending to both sides of the salvage plate (202), the rotating collection mechanism (20) further includes a shaking mechanism (30) for assisting the silicon material to move on the salvage plate (202), and the rotating collection mechanism (20) further includes a reciprocating mechanism (40) for driving the salvage plate (202) to move horizontally along the top of the flotation box (10); The mixing mechanism (50) comprises a driving shaft (501) and a driven shaft (502) which are horizontally symmetrically connected to the inside of the flotation box (10). The driving shaft (501) and the driven shaft (502) are connected to each other via a transmission belt (503). An L-plate (504) is fixedly connected to the surface of the transmission belt (503). The mixing mechanism (50) further includes an aeration mechanism (60) for generating bubbles, the aeration mechanism (60) including exhaust pipes (601) symmetrically connected to the inside of the flotation box (10), each exhaust pipe (601) having air injection holes equidistantly formed on the side surface, both ends of the two exhaust pipes (601) passing through the side wall of the flotation box (10), and one end of the exhaust pipe (601) being fixedly connected to an external air supply device via a hose; Each exhaust pipe (601) is fixedly connected to a first connecting rod (602) at one end away from the air supply device, and each first connecting rod (602) is provided with a first chute (603) at one end away from the exhaust pipe (601). The flotation box (10) is symmetrically slidably connected to an L-shaped pull rod (604) on the outside, and a side protrusion of each L-shaped pull rod (604) extends into the first chute (603). The L-shaped pull rod (604) is slidably connected to the first connecting rod (602). The rod (604) is slidably connected to a guide rod (608) at one end away from the first chute (603), and the guide rod (608) is fixedly connected to the outside of the flotation box (10). The two ends of the driven shaft (502) are symmetrically fixedly connected to disks (606), and each disk (606) is fixedly connected to a side surface with a wedge (607). The inclined surface of the wedge (607) is slidably connected to the side surface of the L-shaped pull rod (604), and a tension spring (605) is fixedly connected between the two L-shaped pull rods (604).

2. The flotation recovery equipment for silicon material in waste liquid according to claim 1, characterized in that: The shaking mechanism (30) includes a first slide bar (301) horizontally slidably connected to the surface of the salvage plate (202), one end of the first slide bar (301) extends into the cavity of the installation shaft (201), the first slide bar (301) is fixedly connected to the second slide bar (302) at one end away from the installation shaft (201), the second slide bar (302) is fixedly connected to the hammer (303) at one end away from the first slide bar (301), the hammer (303) is fitted together with the side surface of the side plate (203), the second slide bar (302) is fixedly connected to the side surface of the first spring (304), and the first spring (304) is fixedly connected to the side surface of the L-shaped slide plate (204) at one end away from the second slide bar (302).

3. The flotation recovery equipment for silicon material in waste liquid according to claim 2, characterized in that: The shaking mechanism (30) further includes a fixed rod (306) that slides through the central cavity of the mounting shaft (201), the fixed rod (306) is annularly fixedly connected with a protrusion (307) at equal angles on the outside, a slider (305) is slidably connected in a groove formed between two adjacent protrusions (307), the slider (305) is fixedly connected to the end of the first slide rod (301) away from the second slide rod (302), both ends of the fixed rod (306) are fixedly connected with a sleeve frame (308), and each sleeve frame (308) is sleeved with a collection box (206).

4. The flotation recovery equipment for silicon material in waste liquid according to claim 1, characterized in that: The reciprocating mechanism (40) comprises a support frame (401) symmetrically connected to the outside of the mounting shaft (201), the top of the support frame (401) being fixedly connected to the side of the collection box (206), the bottom of each support frame (401) being fixedly connected to a driving wheel (402) via a coupling, the top of the flotation box (10) being symmetrically fixedly connected to a slide rail (403), and the driving wheel (402) at the bottom of each support frame (401) being respectively rollingly connected in the slide rail (403).

5. The flotation recovery equipment for silicon material in waste liquid according to claim 4, characterized in that: The reciprocating mechanism (40) further comprises a transmission shaft (409) fixedly connected to the driving wheel (402), the transmission shaft (409) being externally rotatably sleeved with a first pulley (404), the mounting shaft (201) being externally fixedly connected with a second pulley (405), the first pulley (404) and the second pulley (405) being transmission-connected via a synchronous belt (406), the transmission shaft (409) being externally fixedly connected with a ratchet (407), the first pulley (404) being internally rotatably connected with a pawl (408) in a cavity thereof, the pawl (408) being meshed with the ratchet (407).

6. The flotation recovery equipment for silicon material in waste liquid according to claim 1, characterized in that: The mixing mechanism (50) further comprises a scattering mechanism (70) for spreading waste materials inside the flotation box (10), the scattering mechanism (70) comprising a cylindrical outer shell (701) rotatably connected to the outside of the flotation box (10), a notch for discharging waste materials being provided on the side of the outer shell (701), a rotating disk (702) being rotatably connected inside the outer shell (701), a plurality of vertical plates (703) being fixedly connected at equal angles to the upper surface of the rotating disk (702), a feed hopper (709) being fixedly connected to the top of the outer shell (701), a second connecting rod (704) being fixedly connected to the bottom of the outer shell (701), and a second chute (705) being provided at one end of the second connecting rod (704) away from the outer shell (701).

7. The flotation recovery equipment for silicon material in waste liquid according to claim 6, characterized in that: The throwing mechanism (70) further comprises a moving rod (706) vertically slidably connected to the outside of the flotation box (10), a protrusion on the outside of the moving rod (706) extending into the inside of the second chute (705), the moving rod (706) being slidably connected to the second connecting rod (704), a second spring (708) being fixedly connected to the top of the moving rod (706), an end of the second spring (708) away from the moving rod (706) being fixedly connected to a protrusion on the side of the flotation box (10), a cam (707) being fixedly connected to one end of the driving shaft (501), and the cam (707) being slidably connected to the bottom of the moving rod (706).

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