Flotation recovery equipment for silicon material in waste liquid

Abstract

The invention discloses flotation recovery equipment for silicon materials in waste liquid, and relates to the technical field of flotation equipment, the flotation recovery equipment comprises a flotation box, the bottom of the flotation box is provided with a slag discharge port, and the slag discharge port is internally provided with a valve baffle used for controlling opening and closing of the slag discharge port; the top of the flotation box is provided with a rotary collecting mechanism used for separating a silicon material from a suspension liquid, the flotation box is internally provided with a mixing mechanism used for accelerating fusion of the silicon material and the suspension liquid, and the rotary collecting mechanism comprises a mounting shaft horizontally arranged above the flotation box. The rotatable salvage plate rotates in the suspension liquid, foams and silicon materials are salvaged from the suspension liquid in the rotating process of the salvage plate, and the salvage plate can make contact with foam layers at different positions of the flotation box through continuous rotation, so that collection comprehensiveness and uniformity are improved, thin or thick foam layers can be effectively removed, and the flotation efficiency is improved. And the silicon material can be better collected.

Description

Technical Field

[0001] The 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 cutting process of silicon materials produces a large amount of waste liquid, which usually contains high-value silicon materials and silicon carbide. In order to achieve effective recycling of resources and reduce environmental pollution, researchers have developed a variety of recycling technologies, including froth flotation, which is a commonly used recycling method, especially suitable for separating silicon materials and silicon carbide from waste liquid.

[0003] There are two types of foam discharge devices in current flotation equipment. One is to use gravity to allow the flotation foam to flow out by itself, and the other is to use scrapers and other similar equipment to force the flotation foam to be discharged. 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, which makes 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 deficiencies of the prior art. Summary of the invention

[0005] In view of the above problems, the invention provides a flotation recovery device for silicon materials in waste liquid, which can effectively solve the problem that the scraper in the prior art cannot effectively collect the target minerals. In order to achieve the above purpose, the embodiment of the present application provides 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 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 suspension is provided at the top of the flotation box, and a mixing mechanism for accelerating the fusion of silicon material and suspension is provided inside the flotation box;

[0007] The rotating collection mechanism includes a mounting shaft horizontally arranged above the flotation box, a salvage plate is symmetrically fixedly connected to the side of the mounting shaft, a U-shaped side plate is fixedly connected to the edge of the surface of each salvage plate, an L-shaped slide is symmetrically fixedly connected to the surface of the salvage plate, one end of each L-shaped slide is fixedly connected to a rectangular tube, and the rectangular tube extends to both sides of the salvage plate, the rotating collection mechanism also includes a shaking mechanism for assisting the silicon material to move 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 bar horizontally slidably connected to the surface of the salvage plate, one end of the first sliding bar extends into the cavity of the mounting shaft, the first sliding bar is fixedly connected to the second sliding bar at one end away from the mounting shaft, the second sliding bar is fixedly connected to a hammer at one end away from the first sliding bar, the hammer is fitted together with the side surface of the side plate, the side surface of the second sliding bar 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 bar.

[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 shape, a sliding block is slidingly connected in a groove formed between two adjacent protrusions, the sliding block is fixedly connected to the end of the first sliding rod away from the second sliding 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 rotatably connected to the outside of the mounting shaft, the top of the support frame is fixedly connected to the side of the collecting box, the bottom of each support frame is fixedly connected to a driving wheel via a connecting shaft, the top of the flotation box is symmetrically fixedly connected to a slide rail, and the driving wheels at the bottom of each support frame are respectively rollingly connected in the slide rail.

[0011] Furthermore, the reciprocating mechanism also includes a transmission shaft fixedly connected to the driving wheel shaft, a first pulley is rotatably sleeved on the outside of the transmission shaft, a second pulley is fixedly connected to the outside of the mounting shaft, the first pulley and the second pulley are connected via a synchronous belt transmission, a ratchet is fixedly connected to the outside of the transmission shaft, 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 comprises a driving shaft and a driven shaft horizontally symmetrically rotatably connected inside 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 exhaust pipes symmetrically rotatably connected to the inside of the flotation box, and each exhaust pipe has jet holes equidistantly opened on the side surface, and 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 an external air supply device through a hose.

[0014] Furthermore, each exhaust pipe is fixedly connected to a first connecting rod at one end away from the air supply device, and each first connecting rod is provided with a first slide groove at one end away from the exhaust pipe. An L-shaped pull rod is symmetrically and slidingly connected to the outside of the flotation box, and a 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 a guide rod is slidingly connected to the end of the L-shaped pull rod 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 block is fixedly connected to the side of each disc, and the inclined surface of the wedge block 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 scattering mechanism for spreading the waste inside the flotation box, the scattering mechanism includes a cylindrical outer shell rotatably connected to the outside of the flotation box, a notch for discharging the waste is provided on the side of the outer shell, a rotating disk is rotatably connected inside the outer shell, a plurality of vertical plates are fixedly connected at equal angles on 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 slide groove 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 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. The device is provided with a rotating collection mechanism, and a rotating salvage plate is used to rotate in the suspension. During the rotation of the salvage plate, foam and silicon materials are salvaged 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. The device is provided 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 provided with a mixing mechanism. During the process of mixing the waste material 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 material 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 also be used to scrape the waste material at the bottom of the flotation box and collect the waste material together, which is convenient for cleaning 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 rise on different paths, increasing the chance of collision with particles in the suspension and improving flotation efficiency.

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

[0023] 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 prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

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

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

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

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

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

[0035] Fig.12 It is a schematic diagram of the connection between the disc and the wedge in the present invention.

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

[0037] The numbers 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 frame; 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 slide groove; 604, L-shaped pull rod; 605, tension spring; 606, disc; 607, wedge block; 608, guide rod; 70, spreading mechanism; 701, outer shell; 702, rotating disc; 703, vertical plate; 704, second connecting rod; 705, second slide groove; 706, moving rod; 707, cam; 708, second spring; 709, feed hopper; 80, slag discharge port; 90, valve baffle. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 work are within the scope of protection of the present invention.

[0039] The present invention will be further described below in conjunction with the embodiments.

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

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The rotating collection mechanism 20 includes a mounting shaft 201 horizontally arranged above the flotation box 10, a salvage plate 202 is symmetrically fixedly connected to the side of the mounting shaft 201, a U-shaped side plate 203 is fixedly connected to the edge of each salvage plate 202, an L-shaped slide plate 204 is symmetrically fixedly connected to the surface of the salvage plate 202, and a rectangular tube 205 is fixedly connected to one end of each L-shaped slide plate 204, and the rectangular tube 205 extends to both sides of the salvage plate 202. The rotating collection mechanism 20 also includes a shaking mechanism 30 for assisting the silicon material to move on the salvage plate 202, and the rotating collection mechanism 20 also includes a reciprocating mechanism 40 for driving the salvage plate 202 to move horizontally along the top of the flotation box 10. The two L-shaped slide plates 204 form a V-shaped diversion structure on the surface of the salvage plate 202, and the salvaged foam and silicon material are discharged into the collection box 206 through the diversion structure composed of the two L-shaped slide plates 204.

[0042] During specific operation, the installation 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 slide plates 204 and the side plate 203. The salvage plate 202 is located in the area between the two L-shaped slide plates 204 and the side plate 203 to salvage the foam and silicon material from the suspension. Under the obstruction of the side plate 203, the salvaged foam and silicon material are blocked on the salvage plate 202. 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 plate 204. When the foam and silicon material slide to After reaching the surface of the L-shaped slide plate 204, the foam and silicon material slide along the surface of the L-shaped slide plate 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 also Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 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 mounting shaft 201, the first slide bar 301 is fixedly connected to the second slide bar 302 at one end away from the mounting 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.

[0044] The shaking mechanism 30 also includes a fixed rod 306 that slides through the middle cavity of the installation shaft 201. The fixed rod 306 has a protrusion 307 fixedly connected to it at an equal angle in a ring shape on the outside. 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 bar 301 away from the second slide bar 302. Both ends of the fixed rod 306 are fixedly connected to a sleeve frame 308, and each sleeve frame 308 is sleeved with a collection box 206.

[0045] During specific operation, both ends of the fixing rod 306 are sleeved on the outside of the collecting box 206 by means of the sleeve frame 308, and the collecting box 206 is fixedly connected to the support frame 401. Therefore, the fixing rod 306 will not rotate. During the rotation of the mounting shaft 201, the mounting shaft 201 drives the first sliding rod 301 and the second sliding rod 302 to rotate synchronously. Under the push of the first spring 304, the slider 305 at one end of the first sliding rod 301 continuously moves from the top of the protrusion 307 to the groove between the two protrusions 307, thereby realizing the synchronous reciprocating movement of the first sliding rod 301 and the second sliding rod 302. The second sliding rod 302 synchronously drives the hammer 303 to continuously hit the side plate 203 of the salvage plate 202. The hammer 303 continuously hits the side plate 203. When the salvage plate 202 is subjected to periodic impact, 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 202 to detach faster and slide into the collection container.

[0046] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.13 The reciprocating mechanism 40 includes a support frame 401 symmetrically rotatably connected to the outside of the mounting shaft 201, the top of the support frame 401 is fixedly connected to the side of the collecting box 206, 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 rollingly connected in the slide rail 403 respectively.

[0047] The reciprocating mechanism 40 also includes a transmission shaft 409 that is fixedly connected to the driving wheel 402. The transmission shaft 409 is externally rotatably sleeved with a first pulley 404. The mounting shaft 201 is externally fixedly connected with a second pulley 405. The first pulley 404 and the second pulley 405 are connected to each other through a synchronous belt 406. A ratchet 407 is externally fixedly connected to the transmission shaft 409. A ratchet 408 is rotatably connected in the cavity of the first pulley 404. The ratchet 408 is meshed with the ratchet 407. The driving wheel 402 has a motor inside, and the motor directly drives the driving wheel 402 to rotate.

[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 enables the salvage plate 202 to salvage the foam and silicon material. When the support frame 401 moves to one end of the flotation box 10, the support frame 401 needs to move in the reverse direction under the drive of the driving wheel 402. When moving in the reverse direction, the ratchet 408 will not restrict the ratchet 407. Therefore, when the driving wheel 402 supports the support frame 401 to move in the reverse direction, the mounting shaft 201 will not rotate. When the support frame 401 moves in the reverse direction to the other end of the flotation box 10, the driving wheel 402 drives the support frame 401 to move again. This time, the moving mounting shaft 201 rotates to salvage the foam and silicon material.

[0049] See also Figure 8 The mixing mechanism 50 includes 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 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 the 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 so that the suspension and other solid waste are 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 also Figure 8 , Fig.11 and Fig.12 The mixing mechanism 50 also includes an aeration mechanism 60 for generating bubbles. The aeration mechanism 60 includes an exhaust pipe 601 symmetrically rotatably connected to the inside of the flotation box 10. Each exhaust pipe 601 has jet holes equidistantly opened on the side surface. Both ends of the two exhaust pipes 601 penetrate the side wall of the flotation box 10. One end of the exhaust pipe 601 is fixedly connected to an external air supply device 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. An L-shaped pull rod 604 is symmetrically slidably connected to the outside of the flotation box 10, and a side protrusion of each L-shaped pull rod 604 extends into the first slide groove 603. The L-shaped pull rod 604 is slidably connected to the first connecting rod 602, and a guide rod 608 is slidably connected to the end of the L-shaped pull rod 604 away from the first slide groove 603. The guide rod 608 is fixedly connected to the outside of the flotation box 10, and discs 606 are symmetrically fixedly connected to both ends of the driven shaft 502. A wedge block 607 is fixedly connected to the side of each disc 606. The inclined surface of the wedge block 607 is slidably 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, the gas is transported from the outside to the exhaust pipe 601, and then the gas is ejected from the jet 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, 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 the flotation efficiency.

[0054] See also Figure 8 , Fig. 9 and Fig.10 The mixing mechanism 50 also includes a scattering mechanism 70 for spreading the waste inside the flotation box 10. The scattering mechanism 70 includes a cylindrical outer shell 701 rotatably connected to the outside of the flotation box 10. A notch for discharging the waste is provided on the side of the outer shell 701. A rotating disk 702 is rotatably connected inside the outer shell 701. A plurality of vertical plates 703 are fixedly connected at equal angles on 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 vertically slidably connected to the outside of the flotation box 10, a protrusion on the outside of the moving rod 706 extends into the second slide groove 705, the moving rod 706 is slidably connected to the second connecting rod 704, a second spring 708 is fixedly connected to the top of the moving rod 706, and the second spring 708 is fixedly connected to the side protrusion of the flotation box 10 at one end away from the moving rod 706, 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 specific operation, waste containing silicon material enters the outer shell 701 from the feed hopper 709, and the rotating disk 702 in the outer shell 701 rotates rapidly driven by an external motor. The rotating disk 702 drives the vertical plate 703 to rotate synchronously to throw the falling waste particles from the notch. At the same time, the driving shaft 501 in the mixing mechanism 50 drives the cam 707 to rotate, and the protruding portion 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. After that, the protruding portion of the cam 707 is separated from the contact with the moving rod 706. Under the push of the elastic force of the second spring 708, the moving rod 706 is pushed downward. At this time, the downward moving rod 706 drives the outer shell 701 to rotate downward through the second connecting rod 704, and drives the outer shell 701 to swing up and down alternately, so that the waste is evenly scattered into the flotation box 10 to avoid local accumulation, which can ensure that the waste can fully contact the bubbles, thereby 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. Meanwhile, the mixing mechanism 50 mixes the solid waste and the suspension, and then the suspension is aerated through the aeration mechanism 60. The suspension is aerated to generate bubbles, which are wrapped 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. Meanwhile, 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, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such 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 embodiments of the present invention.

Claims

1. A flotation recovery device for silicon material in waste liquid, characterized in that: The invention 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 the suspension; The rotating collection mechanism (20) comprises 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 surface edge 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 comprises a shaking mechanism (30) for assisting the silicon material to move on the salvage plate (202), and the rotating collection mechanism (20) further comprises a reciprocating mechanism (40) for driving the salvage plate (202) to move horizontally along the top of the flotation box (10).

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 sliding bar (301) horizontally slidably connected to the surface of the salvage plate (202), one end of the first sliding bar (301) extends into the cavity of the mounting shaft (201), one end of the first sliding bar (301) away from the mounting shaft (201) is fixedly connected to the second sliding bar (302), one end of the second sliding bar (302) away from the first sliding bar (301) is fixedly connected to the hammer (303), the hammer (303) is fitted together with the side of the side plate (203), the side of the second sliding bar (302) is fixedly connected to the first spring (304), and one end of the first spring (304) away from the second sliding bar (302) is fixedly connected to the side of the L-shaped slide plate (204).

3. The flotation recovery equipment for silicon material in waste liquid according to claim 2, characterized in that: The shaking mechanism (30) also includes a fixed rod (306) that slides through the middle cavity of the installation shaft (201), the fixed rod (306) is annularly fixedly connected with a protrusion (307) at an equal angle on the outside, and a sliding block (305) is slidably connected in a groove formed between two adjacent protrusions (307), and the sliding block (305) is fixedly connected to the end of the first sliding rod (301) away from the second sliding rod (302), and 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 rotatably 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); the bottom of each support frame (401) is fixedly connected to a driving wheel (402) via 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).

5. The flotation recovery equipment for silicon material in waste liquid according to claim 4, characterized in that: The reciprocating mechanism (40) also includes a transmission shaft (409) fixedly connected to the driving wheel (402); the transmission shaft (409) is externally rotatably sleeved with a first pulley (404); the mounting shaft (201) is externally fixedly connected with a second pulley (405); the first pulley (404) and the second pulley (405) are connected via a synchronous belt (406); the transmission shaft (409) is externally fixedly connected with a ratchet (407); a pawl (408) is rotatably connected in a cavity of the first pulley (404); the pawl (408) is 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) comprises a driving shaft (501) and a driven shaft (502) which are horizontally symmetrically connected to rotate inside the flotation box (10); the driving shaft (501) and the driven shaft (502) are connected to each other via a transmission belt (503); and an L-plate (504) is fixedly connected to the surface of the transmission belt (503).

7. The flotation recovery equipment for silicon material in waste liquid according to claim 6, characterized in that: The mixing mechanism (50) further comprises an aeration mechanism (60) for generating bubbles, the aeration mechanism (60) comprising an exhaust pipe (601) symmetrically rotatably connected to the inside of the flotation box (10), each exhaust pipe (601) having a side with air jet holes equidistantly formed thereon, 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.

8. The flotation recovery equipment for silicon material in waste liquid according to claim 7, characterized in that: 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 sliding groove (603) at one end away from the exhaust pipe (601). The outside of the flotation box (10) is symmetrically slidably connected to an L-shaped pull rod (604), and a side protrusion of each L-shaped pull rod (604) extends into the first sliding groove (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 slide groove (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 with a wedge block (607). The inclined surface of the wedge block (607) is slidably 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).

9. The flotation recovery equipment for silicon material in waste liquid according to claim 6, characterized in that: The mixing mechanism (50) further comprises a scattering mechanism (70) for scattering 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 is provided on the side of the outer shell (701), a rotating disk (702) is rotatably connected inside 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), and a second chute (705) is provided at one end of the second connecting rod (704) away from the outer shell (701).

10. The flotation recovery equipment for silicon material in waste liquid according to claim 9, characterized in that: The spreading mechanism (70) also includes a moving rod (706) 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), one end of the second spring (708) away from the moving rod (706) is fixedly connected to a protrusion on the side of the flotation box (10), one end of the driving shaft (501) is fixedly connected to a cam (707), and the cam (707) is slidably connected to the bottom of the moving rod (706).

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