A purification device for preparing composite silicon micropowder

Abstract

The present invention discloses a purification device for preparing composite silicon micropowder, which relates to the technical field of silicon micropowder preparation, and includes a purification component, wherein the purification component includes a soaking tank. The purification device for preparing composite silicon micropowder observes whether the surface of the sorting electromagnet is adsorbed with magnetic substances, starts the forward and reverse motors, and pours the fine composite silicon micropowder above the unloading plate into the sorting chamber from the side where the turbine plate is installed. At this time, the first electromagnet plate and the second electromagnet plate are both in an energized state, and the composite silicon micropowder passes through two groups of turbine plates when it falls downward. The turbine plates disperse the composite silicon micropowder, so that the magnetically attracted powder in the composite silicon micropowder can be evenly adsorbed on the first electromagnet plate and the second electromagnet plate, thereby completing the magnetic separation. At this time, the composite silicon micropowder can be classified and purified according to whether it contains magnetic substances, and no unnecessary operations will be performed when it does not contain magnetic substances.

Description

Technical Field

[0001] The invention relates to the technical field of silicon micropowder preparation, in particular to a purification device for preparing composite silicon micropowder. Background Art

[0002] Composite silicon micropowder is a multi-purpose inorganic filler, which is usually made of silicon dioxide and other inorganic mineral raw materials in a certain proportion. Composite silicon micropowder has many excellent properties, such as low oil absorption, high temperature resistance, wear resistance, non-brittleness, scratch resistance, corrosion resistance, high insulation, high transparency, strong weather resistance, low thermal expansion coefficient, shrinkage resistance, increased stability, anti-penetration, waterproof, scrub resistance, etc. The state of composite silicon micropowder is neither the fluidity of the sol state nor the semi-solidity of the gel state, but is in a specific dispersed state between the two.

[0003] In the prior art, for example, in the Chinese patent number: CN113680529A, a silicon micropowder purification device is disclosed, including a magnetic separation mechanism, the magnetic separation mechanism includes an electromagnetic roller shaft, the electromagnetic roller shaft is arranged at both ends of the conveyor belt, the electromagnet is attached to the inner side of the conveyor belt, and a feed port is arranged above the conveyor belt; a collecting box is arranged below the conveyor belt, and a scraper is provided on the collecting box; a dispersing device is arranged on the upper surface of the conveyor belt and is located directly above the electromagnet; a purification box is arranged at the end of the conveyor belt, and a waste discharge mechanism includes a sealing box, which is connected to the sewage discharge pipe and the purification box, a liquid level plate is installed in the sealing box, and a cylinder is connected to the liquid level plate; a stirring mechanism is installed in the purification box for stirring the material in the purification box; and a gas filling mechanism is used to introduce gas into the material in the purification box. The magnetic separation mechanism separates the silicon micropowder from the magnetic substance, and the separated silicon micropowder is placed in the purification box. During the purification process, the stirring mechanism and the gas filling mechanism are fully stirred to improve the efficiency.

[0004] However, in the prior art, the most common methods for purifying composite silicon micropowder are grinding, magnetic separation, acid leaching and flotation. However, in actual use, the purification of composite silicon micropowder does not necessarily require magnetic separation. When the raw materials of composite silicon micropowder do not contain substances that can be magnetically adsorbed, magnetic separation is not required. However, the current purification equipment has a series of purification steps and cannot distinguish whether magnetic separation is needed. Therefore, magnetic separation must be performed in each purification step. The magnetic separation process requires a certain amount of time and operating steps. If it is performed when it is not necessary, it will extend the time of the entire purification process and reduce production efficiency.

[0005] Therefore, we proposed a purification device for preparing composite silicon micropowder in order to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a purification device for preparing composite silicon micropowder to solve the problem that the current purification device mentioned in the above background technology has to perform magnetic separation in each purification step, which is not necessary, which will prolong the time of the entire purification process and reduce production efficiency.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a purification device for preparing composite silicon micropowder, comprising a purification component, the purification component comprising an immersion tank, and the immersion tank is used to further purify the composite silicon micropowder after sorting, a selection component is fixedly installed on the top of the immersion tank, a primary screening component is placed on the top of the selection component, the selection component comprises a sorting chamber, both sides of the outer surface of the sorting chamber are fixedly embedded with observation windows for observing the internal situation of the sorting chamber, and the observation windows are made of transparent glass, a rotating rod is rotatably embedded between the relative inner walls of the sorting chamber, the top of the rotating rod is fixedly connected with a feeding plate, and the lower Two connecting rods are fixedly connected at the top middle edge of the material plate, a sorting electromagnet is arranged between the top ends of the two connecting rods, a first electromagnet plate is arranged near the bottom of the inner wall of one side of the sorting chamber, and a second electromagnet plate is arranged near the bottom of the inner wall of the other side of the sorting chamber, the inclination direction of the first electromagnet plate is opposite to the inclination direction of the second electromagnet plate, and a fixing buckle is fixedly connected to two corners of the bottom of the unloading plate, a fixing shaft is fixedly connected between the inner walls of the two fixing buckles, the outer surfaces of the two fixed shafts are rotatably connected to I-shaped wheels, and the outer surfaces of the two I-shaped wheels are movably connected to friction belts.

[0008] Preferably, two rotating blocks are rotatably embedded in the inner walls on both sides of the sorting chamber, and a connecting groove is opened on the outer surface of each rotating block. Each of the friction belts contacts the inner walls of the two connecting grooves respectively and simultaneously, and a plurality of turbine plates are fixedly connected to the outer surfaces of the four connecting shafts, and the turbine plates are used to disperse the composite silicon micropowder. A support plate is fixedly connected to the rear surface of the sorting chamber, and a forward and reverse motor is arranged on the top of the support plate, and the output shaft of the forward and reverse motor is fixedly connected to one end of the rotating rod.

[0009] Preferably, a delivery port is provided at the top of the immersion pool, a material storage net is fixedly connected to the bottom of the delivery port, a liquid pump is arranged on the front surface of the immersion pool, an input end of the liquid pump is fixedly connected to a liquid inlet pipe, one end of the liquid inlet pipe is fixedly connected to a liquid extraction pipe, and one end of the liquid extraction pipe passes through the interior of the immersion pool.

[0010] Preferably, a feeding pipe for feeding materials is fixedly connected to one side of the top of the immersion tank, and a drain pipe for discharging waste liquid is fixedly connected to the bottom of one side of the outer surface of the immersion tank.

[0011] Preferably, two rotating holes are opened at the top of the immersion pool near the other side, the inner walls of the two rotating holes are rotatably connected with an I-shaft, the bottoms of the two I-shafts are fixedly connected with a receiving rod, and the outer surfaces of the two receiving rods are fixedly connected with mixing impellers for mixing the liquid material inside the immersion pool.

[0012] Preferably, reinforcement plates are fixedly connected to the top of the immersion pool near the front surface and the rear surface, a first bearing is fixedly embedded in the two reinforcement plates, a linkage rod is fixedly connected between the inner walls of the two first bearings, one end of the linkage rod is fixedly connected to a driven rotating wheel, two active bevel gears are symmetrically installed on the outer surface of the linkage rod, the outer surfaces of the two active bevel gears are meshed with driven bevel gears, the bottoms of the two driven bevel gears are fixedly connected with reinforcement rods, and the two reinforcement rods are respectively fixedly installed on the tops of the two I-shafts.

[0013] Preferably, the primary screening assembly includes a fixed cylinder, a discharge port is provided at the bottom of the fixed cylinder, second bearings are fixedly installed at both ends of the fixed cylinder, a screen cylinder is fixedly connected between the inner walls of the two second bearings, a plurality of screen holes are provided on the outer surface of the screen cylinder, and a plurality of impact plates are fixedly connected to the inner wall of the screen cylinder.

[0014] Preferably, one end of the sieve cylinder is rotatably connected to a closing cover via a hinge, a pull rod is fixedly connected to the outer surface of the closing cover, the other end of the sieve cylinder is fixedly connected to a feed pipe, a feeding bin is slidably inserted at one end of the feed pipe, a reinforcing rod is fixedly connected to the outer surface of the feeding bin, and the reinforcing rod is fixedly installed on the outside of the fixed cylinder.

[0015] Preferably, a driving gear is fixedly connected to the outer surface of the feed pipe, a fixing frame is fixedly connected to one end of the fixing cylinder near the bottom, a servo motor is arranged on the top of the fixing frame, and a driven gear is fixedly connected to the output shaft of the servo motor, and the outer surface of the driven gear is meshingly connected to the outer surface of the driving gear, a driving wheel is fixedly connected to one side of the driven gear, and a connecting belt is movably connected between the outer surface of the driving wheel and the outer surface of the driven wheel.

[0016] Preferably, support columns are fixedly connected to the bottom of the immersion pool near the four corners, a fixing plate is fixedly connected between every two of the support columns, two support plates are fixedly connected to the outer surface of each fixing plate, and each support plate is fixedly connected to the outer surface of the fixing tube by bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When in use, it can be observed through the observation window whether the upper surface of the sorting electromagnet is adsorbed with magnetic substances in the composite silicon micropowder fine powder, and the forward and reverse motors are started to pour the composite silicon micropowder fine powder above the unloading plate into the sorting chamber from the side where the turbine plate is installed. At this time, the first electromagnet plate and the second electromagnet plate are both in an energized state. The composite silicon micropowder will pass through two sets of turbine plates when it falls downward. The turbine plates disperse the composite silicon micropowder, so that the magnetic powder in the composite silicon micropowder can be evenly adsorbed on the first electromagnet plate and the second electromagnet plate, thereby completing the magnetic separation. At this time, the composite silicon micropowder can be classified and purified according to whether it contains magnetic substances. When it does not contain magnetic substances, no unnecessary operations will be performed. The friction belt is elastic. When the unloading plate is returning, the friction belt drives the two connecting shafts and the same set of turbine plates to rotate, thereby sprinkling the composite silicon micropowder staying on the turbine plates.

[0019] 2. When in use, under the connection of the connecting belt, the driven wheel will drive the linkage rod, the active bevel gear, the driven bevel gear, the reinforcement rod, the I-shaft, the receiving rod and the mixing rotor to rotate at the same time, so that the liquid and material inside the immersion tank can be mixed and stirred. At this time, the composite silicon micropowder is in the storage net. When acid immersion is required, acid is injected into the immersion tank. When flotation is required, composite silicon micropowder, water and flotation agent are poured into the feeding pipe, which has the advantage of selective purification and increased flexibility.

[0020] 3. When in use, pour the ground composite silicon micropowder from the feeding bin into the interior of the sieve drum, and start the servo motor to make the active gear drive the driven gear to drive the feed pipe and the sieve drum to rotate. When the sieve drum rotates, the fine particles of composite silicon micropowder inside it are thrown into the interior of the fixed drum from multiple sieve holes, and then discharged from the discharge port. The composite silicon micropowder with larger particles inside the sieve drum that cannot pass through the sieve holes continues to rotate inside the sieve drum, and will continuously collide with the impact plate during the rotation process to achieve further crushing. Finally, the impurities and particles that cannot be crushed are discharged from one end of the closing cover. The closing cover can be opened by removing the fastening bolts and using the pull rod. At this point, the preliminary screening of purification is completed, the fine powder is screened out, and the impurities and coarse powder are removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a bottom-up stereoscopic diagram of a purification device for preparing composite silicon micropowder according to the present invention;

[0022] Figure 2 A side perspective view of a purification device for preparing composite silicon micropowder according to the present invention;

[0023] Figure 3 It is a partially cutaway stereoscopic view of a primary screening component of a purification device for preparing composite silicon micropowder according to the present invention;

[0024] Figure 4 It is a sectional perspective view of a partial structure of a primary screening component of a purification device for preparing composite silicon micropowder of the present invention;

[0025] Figure 5 It is a partially cutaway stereoscopic view of selected components of a purification device for preparing composite silicon micropowder according to the present invention;

[0026] Figure 6 This is a three-dimensional diagram of the structure of the fixing buckle part of a purification device for preparing composite silicon micropowder according to the present invention;

[0027] Figure 7 It is a top perspective view of a purification component portion of a purification device for preparing composite silicon micropowder according to the present invention;

[0028] Figure 8 The present invention is a cross-sectional stereoscopic diagram showing a partial structure of a purification component of a purification device for preparing composite silicon micropowder.

[0029] In the figure:

[0030] 1. Purification component; 101. Immersion tank; 102. Drain pipe; 103. Feed pipe; 104. Delivery port; 105. Storage net; 106. Liquid pump; 107. Liquid inlet pipe; 108. Extraction pipe; 109. Driven runner; 110. Linkage rod; 111. Active bevel gear; 112. Driven bevel gear; 113. Reinforcement rod; 114. First bearing; 115. Reinforcement plate; 116. Rotation hole; 117. I-beam shaft; 118. Receiver rod; 119. Mixing rotor; 2. Selection component; 201. Sorting chamber; 202. Observation window; 203. Support plate; 204. Forward and reverse motor; 205. Sorting electromagnet; 206. Connecting rod; 207. Unloading plate; 208. Rotating rod; 209. Connecting shaft; 210, turbine plate; 211, first electromagnet plate; 212, second electromagnet plate; 213, friction belt; 214, fixing buckle; 215, fixed shaft; 216, I-shaped wheel; 217, rotating block; 218, connecting groove; 3, primary screening assembly; 301, fixed cylinder; 302, screen cylinder; 303, screen hole; 304, impact plate; 305, second bearing; 306, feed pipe; 307, discharge port; 308, driving gear; 309, reinforcing rod; 310, feeding bin; 311, servo motor; 312, driven gear; 313, fixed frame; 314, driving wheel; 315, pull rod; 316, closing cover; 4, support column; 5, fixed plate; 6, support plate; 7, connecting belt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0032] Example 1: Reference Figure 1-8 As shown, the present invention provides a technical solution: a purification device for preparing composite silicon micropowder, comprising a purification component 1, the purification component 1 comprises a immersion tank 101, and the immersion tank 101 is used to further purify the composite silicon micropowder after sorting, a selection component 2 is fixedly installed on the top of the immersion tank 101, a primary screening component 3 is placed on the top of the selection component 2, the selection component 2 comprises a sorting chamber 201, and both sides of the outer surface of the sorting chamber 201 are fixedly embedded with observation holes for observing the internal situation of the sorting chamber 201 The observation window 202 is made of transparent glass, a rotating rod 208 is rotatably embedded between the opposite inner walls of the sorting chamber 201, a blanking plate 207 is fixedly connected to the top of the rotating rod 208, two connecting rods 206 are fixedly connected to the top middle edge of the blanking plate 207, a sorting electromagnet 205 is arranged between the tops of the two connecting rods 206, a first electromagnet plate 211 is arranged near the bottom of the inner wall of one side of the sorting chamber 201, and a second electromagnet plate 212 is arranged near the bottom of the inner wall of the other side of the sorting chamber 201 The first electromagnetic plate 212 is tilted in the opposite direction to the second electromagnetic plate 212. The bottom of the blanking plate 207 is fixedly connected with a fixing buckle 214 near two corners. A fixing shaft 215 is fixedly connected between the inner walls of the two fixing buckles 214. The outer surfaces of the two fixing shafts 215 are rotatably connected with an I-shaped wheel 216. The outer surfaces of the two I-shaped wheels 216 are movably connected with a friction belt 213. The inner walls of both sides of the sorting chamber 201 are rotatably embedded with two Rotating block 217, each rotating block 217 has a connecting groove 218 on its outer surface, each friction belt 213 contacts the inner walls of two connecting grooves 218 at the same time, the outer surfaces of the four connecting shafts 209 are fixedly connected with a plurality of turbine plates 210, and the turbine plates 210 are used to disperse the composite silicon powder, the rear surface of the sorting chamber 201 is fixedly connected with a support plate 203, a forward and reverse motor 204 is arranged on the top of the support plate 203, and the output shaft of the forward and reverse motor 204 is fixedly connected with one end of the rotating rod 208.

[0033] In this embodiment, when in use, the liquid pump 106, the forward and reverse motor 204, the sorting electromagnet 205, the first electromagnet plate 211, the second electromagnet plate 212 and the servo motor 311 are first electrically connected to the external power supply, and are electrically connected to the external control system, and the start, stop and operation thereof are controlled by the external control system, and the fine composite silicon micropowder enters the sorting chamber 201 through the discharge port 307. At this time, the sorting electromagnet 205 is energized, and the unloading plate 207 is kept horizontal to prevent the fine composite silicon micropowder from falling directly to the bottom of the sorting chamber 201. The surface of the sorting electromagnet 205 is The surface of the separation electromagnet 205 is coated with an anti-stick coating. When the composite silicon micropowder falls on the separation electromagnet 205, it will slide down completely and quickly. If the composite silicon micropowder contains a substance that can be magnetically adsorbed, the substance will be adsorbed on the surface of the separation electromagnet 205 and cannot slide down. Through the observation window 202, it can be observed whether the upper surface of the separation electromagnet 205 is adsorbed with magnetic substances in the composite silicon micropowder. If not, the forward and reverse motor 204 is started to drive the rotating rod 208 to rotate with its output shaft. During the rotation, the side with the fixing buckle 214 installed is upward and the other side is downward, so that the composite silicon micropowder above the discharge plate 207 All the composite silicon micropowder powder is poured into the sorting chamber 201, and at this time, the first electromagnetic plate 211 and the second electromagnetic plate 212 are not powered. If there is adsorption, the forward and reverse motors 204 are started to rotate their output shafts in opposite directions, so that the composite silicon micropowder powder above the unloading plate 207 is poured into the sorting chamber 201 from the side where the turbine plate 210 is installed. At this time, the first electromagnetic plate 211 and the second electromagnetic plate 212 are both in a powered state. When the composite silicon micropowder is sprinkled downward, it will pass through two sets of turbine plates 210, and the turbine plates 210 disperse the composite silicon micropowder, thereby The magnetic powder can be evenly adsorbed on the first electromagnet plate 211 and the second electromagnet plate 212, thereby completing the magnetic separation. At this time, the composite silicon micropowder can be classified and purified according to whether it contains magnetic substances. When it does not contain magnetic substances, no unnecessary operations will be performed. The friction belt 213 is elastic. When the unloading plate 207 returns to its position, the friction belt 213 will move. When the friction belt 213 is in friction contact with the inside of the connecting groove 218, the two connecting shafts 209 and the same group of turbine plates 210 are driven to rotate, thereby sprinkling the composite silicon micropowder remaining on the turbine plate 210.

[0034] Embodiment 2: Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, a delivery port 104 is provided at the top of the immersion pool 101, and a material storage net 105 is fixedly connected to the bottom of the delivery port 104. A liquid pump 106 is provided on the front surface of the immersion pool 101, and an input end of the liquid pump 106 is fixedly connected to a liquid inlet pipe 107, and one end of the liquid inlet pipe 107 is fixedly connected to a liquid extraction pipe 108, and one end of the liquid extraction pipe 108 passes through the interior of the immersion pool 101. A feeding pipe 103 for feeding materials is fixedly connected to the top of the immersion pool 101 near one side, and a discharge pipe 102 for discharging waste liquid is fixedly connected to the outer surface of one side of the immersion pool 101 near the bottom, and two rotating holes 116 are provided at the top of the immersion pool 101 near the other side, and the inner walls of the two rotating holes 116 are rotatably connected to I-shaped shafts 117, and the bottoms of the two I-shaped shafts 117 are fixedly connected to receiving rods 118, and the outer surfaces of the two receiving rods 118 Mixing impellers 119 for mixing liquid materials inside the immersion tank 101 are fixedly connected, reinforcement plates 115 are fixedly connected to the top of the immersion tank 101 near the front surface and the rear surface, first bearings 114 are fixedly embedded inside the two reinforcement plates 115, a linkage rod 110 is fixedly connected between the inner walls of the two first bearings 114, one end of the linkage rod 110 is fixedly connected to a driven runner 109, two active bevel gears 111 are symmetrically installed on the outer surface of the linkage rod 110, the outer surfaces of the two active bevel gears 111 are meshed with driven bevel gears 112, the bottoms of the two driven bevel gears 112 are fixedly connected with reinforcement rods 113, the two reinforcement rods 113 are respectively fixedly installed on the tops of two I-shaped shafts 117, and a connecting belt 7 is movably connected between the outer surface of the active runner 314 and the outer surface of the driven runner 109.

[0035] In this embodiment, when in use, when the output shaft of the servo motor 311 drives the driving gear 308 to rotate, it will also drive the driving wheel 314 to rotate. Under the connection of the connecting belt 7, the driven wheel 109 will rotate at the same time. Since the linkage rod 110 is fixed to the reinforcing plate 115 under the connection of the first bearing 114, the driven wheel 109 will drive the linkage rod 110 and the driving bevel gear 111 installed on its surface to rotate when it rotates. Under the meshing connection between the driving bevel gear 111 and the driven bevel gear 112, the two driven bevel gears 112 drive the reinforcement rod 113, the I-shaft 117, the receiving rod 118 and the mixing impeller 119 connected to the bottom thereof to rotate at the same time, so that the liquid and the material inside the immersion tank 101 can be mixed and stirred. At this time, the composite silicon powder is in the storage net 105. The mesh of the storage net 105 is extremely small, and the composite silicon powder cannot pass through. When acid leaching is required, acid solution is injected into the leaching tank 101. The acid solution can react chemically with many metal impurities to dissolve them. It can also act on some non-metallic impurities and mineral impurities, converting them into soluble substances or destroying their structures to facilitate subsequent separation. The impurities dissolved in the acid solution can be discharged. When flotation is required, composite silicon powder, water, and flotation agents are poured into the feeding pipe 103, and stirred in the leaching tank 101 to mix them. Bubbles are generated during the rotation of the rotary blades, and hydrophobic impurity particles adhere to the bubbles and rise to the surface of the slurry with the bubbles to form a foam layer. The foam can be pumped out through the liquid extraction pipe 108 and the liquid inlet pipe 107 by starting the liquid pump 106. It has the advantage of selective purification and increased flexibility.

[0036] Embodiment three: Figure 1-4As shown, the primary screening assembly 3 includes a fixed cylinder 301, a discharge port 307 is provided at the bottom of the fixed cylinder 301, second bearings 305 are fixedly installed at both ends of the fixed cylinder 301, a screen cylinder 302 is fixedly connected between the inner walls of the two second bearings 305, a plurality of screen holes 303 are provided on the outer surface of the screen cylinder 302, a plurality of impact plates 304 are fixedly connected to the inner wall of the screen cylinder 302, one end of the screen cylinder 302 is rotatably connected to a closing cover 316 through a hinge, a pull rod 315 is fixedly connected to the outer surface of the closing cover 316, the other end of the screen cylinder 302 is fixedly connected to a feed pipe 306, a feed bin 310 is slidably inserted at one end of the feed pipe 306, a reinforcing rod 309 is fixedly connected to the outer surface of the feed bin 310, the reinforcing rod 309 is fixedly installed on the outside of the fixed cylinder 301, and the outer surface of the feed pipe 306 is fixedly connected to the outer surface of the reinforcing rod 309. A driving gear 308 is fixedly connected, one end of the fixed cylinder 301 is fixedly connected to a fixing frame 313 near the bottom, a servo motor 311 is arranged on the top of the fixing frame 313, the output shaft of the servo motor 311 is fixedly connected to a driven gear 312, the outer surface of the driven gear 312 is meshed with the outer surface of the driving gear 308, one side of the driven gear 312 is fixedly connected to a driving wheel 314, the outer surface of the driving wheel 314 is movably connected to the outer surface of the driven wheel 109 by a connecting belt 7, the bottom of the immersion tank 101 is fixedly connected to support columns 4 near the four corners, each two support columns 4 are fixedly connected with a fixing plate 5, the outer surface of each fixing plate 5 is fixedly connected to two supporting plates 6, and each supporting plate 6 is fixedly connected to the outer surface of the fixed cylinder 301 by bolts.

[0037] In this embodiment, when in use, the support column 4, the fixing plate 5 and the support plate 6 are first installed and connected together to form an integral installation support structure, and the support for the immersion tank 101 and the fixing cylinder 301 is completed, so that the whole device can operate normally and stably. When the composite silicon micropowder is purified, the ground composite silicon micropowder is first poured from the feeding bin 310. Since the outlet of the feeding bin 310 is tightly inserted into the feeding pipe 306, the composite silicon micropowder enters the interior of the sieve cylinder 302 after passing through the feeding bin 310 and the feeding pipe 306. At this time, the servo motor 311 is started to rotate its output shaft, thereby driving the driving gear 308 to rotate. When the driving gear 308 is meshed with the driven gear 312, the servo motor 311 is driven to rotate its output shaft. When the sieve drum 302 is connected, the driven gear 312 drives the feed pipe 306 and the sieve drum 302 to rotate. When the sieve drum 302 rotates, the fine particles of the composite silicon micropowder inside it are thrown into the interior of the fixed drum 301 through the multiple sieve holes 303, and then discharged from the discharge port 307. The composite silicon micropowder inside the sieve drum 302 is larger and cannot pass through the sieve holes 303. The particles continue to rotate inside the sieve drum 302. During the rotation, they will continuously collide with the impact plate 304 to achieve further crushing. Finally, the impurities and particles that cannot be crushed are discharged from one end of the closing cover 316. The closing cover 316 can be opened by removing the fastening bolts and using the pull rod 315. At this point, the preliminary screening of purification is completed, the fine powder is screened out, and the impurities and coarse powder are removed.

[0038] The method of use and working principle of the device: When in use, first install and connect the support column 4, the fixing plate 5 and the support plate 6 together to form an overall installation support structure, complete the support of the immersion tank 101 and the fixing cylinder 301, so that the whole device can operate normally and stably. When purifying the composite silicon micropowder, first pour the ground composite silicon micropowder from the feeding bin 310. Since the outlet of the feeding bin 310 is tightly inserted into the feeding pipe 306, the composite silicon micropowder enters the interior of the sieve cylinder 302 after passing through the feeding bin 310 and the feeding pipe 306. At this time, the servo motor 311 is started to rotate its output shaft, thereby driving the driving gear 308 to rotate. When the driving gear 308 and the driven gear 31 2, the driven gear 312 drives the feed pipe 306 and the screen drum 302 to rotate. When the screen drum 302 rotates, the fine particles of the composite silicon powder inside it are thrown into the interior of the fixed drum 301 from the multiple screen holes 303, and then discharged from the discharge port 307. The composite silicon powder inside the screen drum 302 is too large to pass through the screen holes 303 and continues to rotate inside the screen drum 302. During the rotation, it will continuously collide with the impact plate 304 to achieve further crushing. Finally, the impurities and particles that cannot be crushed are discharged from one end of the closing cover 316. The closing cover 316 can be opened by removing the fastening bolts and using the pull rod 315 to complete the preliminary screening of purification. When in use, first turn on the liquid pump 106, the forward and reverse The motor 204, the sorting electromagnet 205, the first electromagnet plate 211, the second electromagnet plate 212 and the servo motor 311 are all electrically connected to an external power supply and an external control system, and the start, stop and operation thereof are controlled by the external control system. The composite silicon micropowder enters the sorting chamber 201 through the discharge port 307. At this time, the sorting electromagnet 205 is energized, and the unloading plate 207 is kept horizontal to prevent the composite silicon micropowder from falling directly to the bottom of the sorting chamber 201. The surface of the sorting electromagnet 205 is coated with an anti-stick coating. When the composite silicon micropowder falls on the sorting electromagnet 205, it will slide completely and quickly. If the composite silicon micropowder contains a substance that can be magnetically adsorbed, the substance will be adsorbed. The surface of the sorting electromagnet 205 cannot slide down. Through the observation window 202, it can be observed whether the upper surface of the sorting electromagnet 205 is adsorbed with magnetic substances in the composite silicon micropowder. If not, the forward and reverse motors 204 are started to make their output shafts drive the rotating rod 208 to rotate. During the rotation, the side with the fixing buckle 214 is upward and the other side is downward, so that all the composite silicon micropowder above the unloading plate 207 is poured into the sorting chamber 201. At this time, the first electromagnet plate 211 and the second electromagnet plate 212 are not energized. If there is adsorption, the forward and reverse motors 204 are started to make their output shafts rotate in opposite directions, so that the composite silicon micropowder above the unloading plate 207 is poured into the sorting chamber 201 from the side with the turbine plate 210.At this time, the first electromagnetic plate 211 and the second electromagnetic plate 212 are both in a powered state. When the composite silicon micropowder is scattered downward, it passes through two sets of turbine plates 210. The turbine plates 210 disperse the composite silicon micropowder, so that the magnetic powder in the composite silicon micropowder can be evenly adsorbed on the first electromagnetic plate 211 and the second electromagnetic plate 212, thereby completing the magnetic separation. The friction belt 213 is elastic. When the lower plate 207 returns to its position, the friction belt 213 moves. When the friction belt 213 is in friction contact with the inside of the connecting groove 218, Under the condition, the two connecting shafts 209 and the same set of turbine plates 210 are driven to rotate, and then the composite silicon powder staying on the turbine plates 210 is sprinkled. When in use, when the output shaft of the servo motor 311 drives the driving gear 308 to rotate, it will also drive the driving wheel 314 to rotate. Under the connection of the connecting belt 7, the driven wheel 109 will rotate at the same time. Since the linkage rod 110 is fixed on the reinforcement plate 115 under the connection of the first bearing 114, the driven wheel 109 will drive the linkage rod 110 and the active bevel gear installed on its surface when rotating. The wheel 111 rotates, and under the meshing connection between the active bevel gear 111 and the driven bevel gear 112, the two driven bevel gears 112 drive the reinforcement rod 113, the I-shaped shaft 117, the receiving rod 118 and the mixing rotor 119 connected at the bottom thereof to rotate simultaneously, so that the liquid and the material inside the immersion tank 101 can be mixed and stirred. At this time, the composite silicon micropowder is in the storage net 105, and the mesh of the storage net 105 is extremely small, and the composite silicon micropowder cannot pass through. When acid leaching is required, acid is injected into the immersion tank 101, and the acid can react chemically with many metal impurities to make them It can dissolve and also act on some non-metallic impurities and mineral impurities, converting them into soluble substances or destroying their structures for subsequent separation. Impurities dissolved in the acid solution can be discharged. When flotation is required, composite silicon powder, water, and flotation reagent are poured into the feeding pipe 103, stirred in the immersion tank 101 to mix them, and bubbles are generated during the rotation of the rotary blades. The hydrophobic impurity particles adhere to the bubbles and rise to the surface of the slurry with the bubbles to form a foam layer. The foam can be pumped out through the liquid extraction pipe 108 and the liquid inlet pipe 107 by starting the liquid pump 106.

[0039] The wiring diagram of the liquid pump 106, the forward and reverse motor 204, the sorting electromagnet 205, the first electromagnet plate 211, the second electromagnet plate 212 and the servo motor 311 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the liquid pump 106, the forward and reverse motor 204, the sorting electromagnet 205, the first electromagnet plate 211, the second electromagnet plate 212 and the servo motor 311 are no longer explained in detail.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A purification device for preparing composite silicon micropowder, comprising a purification component (1), wherein the purification component (1) comprises a soaking tank (101), and the soaking tank (101) is used to further purify the composite silicon micropowder after sorting, a selection component (2) is fixedly installed on the top of the soaking tank (101), and a primary screening component (3) is placed on the top of the selection component (2), characterized in that: The selection component (2) comprises a sorting chamber (201), observation windows (202) for observing the internal conditions of the sorting chamber (201) are fixedly embedded on the outer surfaces of both sides of the sorting chamber (201), and the observation windows (202) are made of transparent glass. A rotating rod (208) is rotatably embedded between the opposite inner walls of the sorting chamber (201), a blanking plate (207) is fixedly connected to the top of the rotating rod (208), two connecting rods (206) are fixedly connected to the middle edge of the top of the blanking plate (207), and a sorting electromagnet (205) is arranged between the tops of the two connecting rods (206). One side inner wall of the sorting chamber (201) is close to A first electromagnet plate (211) is arranged at the bottom thereof, and a second electromagnet plate (212) is arranged on the inner wall of the other side of the sorting chamber (201) near the bottom thereof; the inclination direction of the first electromagnet plate (211) is opposite to the inclination direction of the second electromagnet plate (212); a fixing buckle (214) is fixedly connected to the bottom of the blanking plate (207) near two corners thereof; a fixing shaft (215) is fixedly connected between the inner walls of the two fixing buckles (214); the outer surfaces of the two fixing shafts (215) are rotatably connected to an I-shaped wheel (216); and the outer surfaces of the two I-shaped wheels (216) are movably connected to a friction belt (213); Two rotating blocks (217) are rotatably embedded in the inner walls of both sides of the sorting chamber (201), and a connecting groove (218) is provided on the outer surface of each rotating block (217). Each friction belt (213) is in contact with the inner walls of the two connecting grooves (218) at the same time. The outer surfaces of the four connecting shafts (209) are fixedly connected with a plurality of turbine plates (210), and the turbine plates (210) are used to disperse the composite silicon micropowder. The rear surface of the sorting chamber (201) is fixedly connected with a support plate (203), and a forward and reverse motor (204) is arranged on the top of the support plate (203). The output shaft of the forward and reverse motor (204) is fixedly connected to one end of a rotating rod (208); Through the observation window (202), it can be observed whether the upper surface of the sorting electromagnet (205) has adsorbed magnetic substances in the composite silicon micropowder. If not, the forward and reverse motor (204) is started so that its output shaft drives the rotating rod (208) to rotate. During the rotation, the side with the fixing buckle (214) is upward and the other side is downward, so that all the composite silicon micropowder above the unloading plate (207) is poured into the sorting chamber (201). At this time, the first electromagnet plate (211) and the second electromagnet plate (212) are not energized. If adsorption is present, the forward and reverse motor (204) is started so that its output shaft rotates in opposite directions, so that the composite silicon micropowder above the unloading plate (207) is poured into the sorting chamber (201) from the side with the turbine plate (210).

2. The purification device for preparing composite silicon micropowder according to claim 1, characterized in that: The top of the immersion pool (101) is provided with a delivery port (104), the bottom of the delivery port (104) is fixedly connected to a material storage net (105), a liquid pump (106) is provided on the front surface of the immersion pool (101), an input end of the liquid pump (106) is fixedly connected to a liquid inlet pipe (107), one end of the liquid inlet pipe (107) is fixedly connected to a liquid extraction pipe (108), and one end of the liquid extraction pipe (108) passes through the interior of the immersion pool (101).

3. The purification device for preparing composite silicon micropowder according to claim 2, characterized in that: A feeding pipe (103) for feeding materials is fixedly connected to one side of the top of the immersion tank (101), and a drain pipe (102) for discharging waste liquid is fixedly connected to one side of the outer surface of the immersion tank (101) near the bottom.

4. The purification device for preparing composite silicon micropowder according to claim 3, characterized in that: Two rotating holes (116) are provided at the top of the immersion tank (101) near the other side, the inner walls of the two rotating holes (116) are rotatably connected to an I-shaped shaft (117), the bottoms of the two I-shaped shafts (117) are fixedly connected to a receiving rod (118), and the outer surfaces of the two receiving rods (118) are fixedly connected to mixing rotors (119) for mixing liquid materials inside the immersion tank (101).

5. The purification device for preparing composite silicon micropowder according to claim 4, characterized in that: A reinforcement plate (115) is fixedly connected to the top of the immersion tank (101) near the front surface and the rear surface, and a first bearing (114) is fixedly embedded inside the two reinforcement plates (115). A linkage rod (110) is fixedly connected between the inner walls of the two first bearings (114), and one end of the linkage rod (110) is fixedly connected to a driven rotating wheel (109). Two active bevel gears (111) are symmetrically mounted on the outer surface of the linkage rod (110), and the outer surfaces of the two active bevel gears (111) are meshedly connected to driven bevel gears (112). The bottoms of the two driven bevel gears (112) are fixedly connected to reinforcement rods (113), and the two reinforcement rods (113) are respectively fixedly mounted on the tops of two I-shaped shafts (117).

6. The purification device for preparing composite silicon micropowder according to claim 5, characterized in that: The primary screening assembly (3) comprises a fixed cylinder (301), a discharge port (307) is provided at the bottom of the fixed cylinder (301), second bearings (305) are fixedly mounted at both ends of the fixed cylinder (301), a screen cylinder (302) is fixedly connected between the inner walls of the two second bearings (305), a plurality of screen holes (303) are provided on the outer surface of the screen cylinder (302), and a plurality of impact plates (304) are fixedly connected to the inner wall of the screen cylinder (302).

7. The purification device for preparing composite silicon micropowder according to claim 6, characterized in that: One end of the sieve cylinder (302) is rotatably connected to a closing cover (316) via a hinge, and a pull rod (315) is fixedly connected to the outer surface of the closing cover (316). The other end of the sieve cylinder (302) is fixedly connected to a feed pipe (306), and a feeding bin (310) is slidably inserted into one end of the feed pipe (306). A reinforcing rod (309) is fixedly connected to the outer surface of the feeding bin (310), and the reinforcing rod (309) is fixedly installed on the outside of the fixed cylinder (301).

8. The purification device for preparing composite silicon micropowder according to claim 7, characterized in that: The outer surface of the feed pipe (306) is fixedly connected to a driving gear (308); one end of the fixed cylinder (301) is fixedly connected to a fixing frame (313) near the bottom; a servo motor (311) is arranged on the top of the fixing frame (313); an output shaft of the servo motor (311) is fixedly connected to a driven gear (312); the outer surface of the driven gear (312) is meshingly connected to the outer surface of the driving gear (308); a driving rotating wheel (314) is fixedly connected to one side of the driven gear (312); and a connecting belt (7) is movably connected between the outer surface of the driving rotating wheel (314) and the outer surface of the driven rotating wheel (109).

9. The purification device for preparing composite silicon micropowder according to claim 8, characterized in that: Support columns (4) are fixedly connected to the bottom of the immersion tank (101) near four corners, and a fixing plate (5) is fixedly connected between every two of the supporting columns (4). The outer surface of each fixing plate (5) is fixedly connected to two supporting plates (6), and each supporting plate (6) is fixedly connected to the outer surface of the fixing cylinder (301) by bolts.

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