A method for dehydrating tungsten concentrate

Abstract

The present invention relates to the technical field of pulp treatment. The present invention discloses the application of a novel concentrate dehydration system, including a treatment tank. The top of the treatment tank is fixedly connected with a motor through an L-shaped frame. The output end of the motor is fixedly connected with a stirring shaft. One end of the stirring shaft away from the motor sequentially penetrates the top and bottom of the treatment tank and extends below the treatment tank. In the present invention, through the coordinated use of the motor, the stirring shaft, the drum, the spiral blade, the stirring blade and the transmission assembly, the rotation direction of the drum is opposite to that of the spiral blade. The drum drives the stirring blades thereon to stir the pulp, so that the impurities in the pulp are flocculated and settled. At the same time, the spiral blade can lift the pulp and flocs at the bottom of the treatment tank upward in the drum, so that the pulp and flocs flow out through the overflow port. In this way, it can be avoided that the flocs settle and bring the unreacted flocculant into the bottom of the treatment tank, and the flocculation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pulp treatment, and specifically relates to a method for dehydrating tungsten concentrate. Background Art

[0002] The dehydration process of tungsten concentrate in the polymetallic concentrator of Hunan Nonferrous Huangshaping Mining Co., Ltd. is "filter pressing + drying". This dehydration system mainly consists of a diaphragm filter press and a microwave dryer. That is, the tungsten concentrate pulp selected is directly fed into the diaphragm filter press for filter pressing, and the filter cake after filter pressing enters the microwave dryer for drying. The product obtained after drying is the tungsten concentrate product. The dehydration efficiency of this dehydration system is 6 tons of tungsten concentrate per day. Through continuous optimization of the beneficiation process, the technical indicators of tungsten beneficiation have been continuously improved, the output of concentrate has continued to increase, reaching an average of 7.5 tons per day and a maximum of 10 tons per day. The efficiency of the entire tungsten concentrate dehydration system cannot meet the rigid demand of actual production, and continuous production is severely restricted.

[0003] Regarding the problem that the insufficient dehydration efficiency of existing tungsten concentrate affects continuous production, tungsten concentrate is concentrated by stirring in a thickener. Existing thickeners concentrate and settle through flocculation technology. The quality of the flocculation effect depends on the mixing effect of the flocculant and the pulp. Generally, a stirring paddle is required to stir the pulp to make the mixing effect of the pulp and the flocculant the best. However, most of the existing ones stir by driving a stirring shaft, a stirring rod or a stirring frame through an electric motor. Although such a stirring method can achieve a mixing effect, the stirring range has certain limitations. At the same time, during the reaction process of the pulp and the flocculant, the flocs generated by flocculation will settle, causing some unreacted flocculant to be carried to the bottom of the liquid, so that the mixing reaction cannot be fully carried out well, and then the flocculation effect is not good. Therefore, there is an urgent need to design a method for dehydrating tungsten concentrate to solve the above problems. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for dehydrating tungsten concentrate to solve the problems of certain limitations in the stirring range of the prior art, and at the same time, during the reaction process of the pulp and the flocculant, the flocs generated by flocculation will settle, causing some unreacted flocculant to be carried to the bottom of the liquid, so that the mixing reaction cannot be fully carried out well, and then the flocculation effect is not good as mentioned in the above background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A tungsten concentrate dehydration method comprises the following steps: concentrating the tungsten concentrate slurry with a thickener, conveying the high-concentration tungsten concentrate slurry with a discharge concentration greater than 50% at the bottom of the φ15m thickener to a φ2m mixing drum via a hose pump; conveying the high-concentration tungsten concentrate slurry in the φ2m mixing drum to a diaphragm filter press via a sludge pump; and drying the filter cake in a microwave dryer via a filter press concentrate bin. The dried product is the tungsten concentrate product.

[0009] The thickener includes a processing box, the top of the processing box is fixedly connected to the motor through an L-shaped frame, the output end of the motor is fixedly connected to the stirring shaft, the end of the stirring shaft away from the motor passes through the top and bottom of the processing box in sequence and extends to the bottom of the processing box, the outside of the stirring shaft and is located inside the processing box. A roller is sleeved on the inside of the processing box, the top middle of the roller is rotatably connected to the outer side of the upper end of the stirring shaft through a sealed bearing, the inner side of the bottom end of the roller is evenly fixed with a plurality of fixing rods, the other ends of the plurality of fixing rods are rotatably connected to the lower end of the stirring shaft through a sealed bearing, the outside of the stirring shaft is fixedly connected with a spiral sheet, the spiral sheet is located inside the roller, and the end of the spiral sheet away from the stirring shaft is slidably connected to the inner wall of the roller, the outside of the roller is fixedly connected with a plurality of stirring blades, and the plurality of stirring blades are distributed in a ring array, a plurality of evenly distributed overflow ports are opened on the upper end of the roller, and a transmission assembly is provided on the processing box.

[0010] Preferably, an annular bottom plate is fixedly connected to the outer side of the bottom end of the treatment box, four support columns distributed in a circular array are fixedly connected to the lower surface of the annular bottom plate, a liquid inlet pipe is fixedly connected to the upper left end of the treatment box, a dosing pipe is fixedly connected to the left side of the top of the treatment box, and a liquid outlet pipe is fixedly connected to the bottom right end of the treatment box.

[0011] Preferably, the transmission assembly includes a first sprocket, a second sprocket, a first rotating rod, a first gear and a second gear, the first sprocket is sleeved on the outside of the top end of the drum, the second sprocket is arranged on the right side of the first sprocket, and the second sprocket is connected to the first sprocket through a chain, the bottom end of the first rotating rod is fixedly connected to the upper surface of the second sprocket, the top end of the first rotating rod passes through the inner top wall of the processing box and extends to the top of the processing box, the first rotating rod is rotatably connected to the processing box, the lower surface of the first gear is fixedly connected to the extended end of the first rotating rod, the second gear is sleeved on the outside of one end of the stirring shaft close to the motor, and the second gear is meshed with the first gear.

[0012] Preferably, a reduction gear box is installed at the extended end of the stirring shaft, a connecting shaft is installed below the reduction gear box, and the connecting shaft is connected to the stirring shaft through the reduction gear box. The reduction gear box is fixedly connected to the lower surface of the processing box, and an annular frame is fixedly connected to the outer side of the end of the connecting shaft away from the reduction gear box.

[0013] Preferably, a rotating component is provided on the clamping component on the left side. The rotating component includes a gear. One side of the gear is fixedly connected to one end of the rotating rod close to the outside of the bearing frame. A chain is meshed and connected to the outside of multiple gears. A servo motor is provided on the other side of the rear gear. The output end of the servo motor is fixedly connected to the other end of the rear gear. The left side of the fixing plate is fixedly connected with a housing, and the lower surface of the other end of the housing is fixedly connected to the upper surface of the corresponding L-shaped plate.

[0014] Preferably, the diameter of the annular frame is equal to the diameter of the processing box. Three arc-shaped blocks are fixedly connected to the edge of the upper surface of the annular frame. The three arc-shaped blocks are distributed in an annular array about the central axis of the annular frame.

[0015] Preferably, three sliding grooves are opened upward at the edge of the lower surface of the processing box, and the sliding grooves correspond to the arc-shaped blocks. Lifting components are arranged inside the three sliding grooves; the lifting components include racks, round rods, round plates and springs. The racks are adapted to the sliding grooves, and the racks are slidably connected inside the sliding grooves. The top of the round rod is fixedly connected to the bottom of the rack. The round plate is sleeved on the outer side of the lower end of the round rod. The spring is sleeved on the outside of the round rod. The spring is fixedly connected between the upper surface of the round plate and the lower surface of the processing box. The bottom of the round rod is fixedly connected with a bull's-eye universal ball, and the bull's-eye universal ball is in rolling connection with the upper surface of the annular frame and the upper surface of the arc-shaped block.

[0016] Preferably, a plurality of flow disturbing components are arranged at positions corresponding to the three racks on the inner wall of the processing box. The plurality of flow disturbing components are equally spaced from top to bottom. Each flow disturbing component includes a sealed box, a third gear, a second rotating rod and a flow disturbing paddle. The sealed box is fixedly connected to the inner wall of the processing box, and through holes are opened on one side of the sealed box close to the processing box. The third gear is arranged inside the sealed box. The second rotating rod is fixedly connected to the middle of the third gear, and both ends of the second rotating rod respectively penetrate through the side wall of the sealed box and extend to the outside to be fixedly connected to the flow disturbing paddle. The flow disturbing paddle does not contact the inner wall of the processing box.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a method for dehydrating tungsten concentrate, which has the following beneficial effects:

[0019] 1. The selected tungsten concentrate directly enters the diaphragm filter press and is changed to enter a φ15m thickener to concentrate the low-concentration tungsten concentrate pulp and improve the concentration of the tungsten concentrate pulp;

[0020] 2. Introduce and use a special high-concentration hose pump to transport the high-concentration tungsten concentrate pulp with a concentration greater than 50% at the bottom discharge of the φ15m thickener to a φ2m stirring barrel;

[0021] 3. Replace the existing ceramic pump with a sludge pump to transport the high-concentration tungsten concentrate pulp in the φ2m agitation tank to the diaphragm filter press, increase the feed pressure to over 7 Mp, and use frequency conversion control for the sludge pump so that the feed pressure is controllable and adjustable. The filtration time is shortened from the original 2 hours / plate to 1 hour / plate, significantly improving the filtration efficiency;

[0022] 4. The filter cake after filtration enters the microwave dryer through the filtered concentrate bin, and the product obtained after drying is the tungsten concentrate product;

[0023] 5. In the present invention, through the combined use of the motor, stirring shaft, drum, spiral blade, stirring blade, and transmission components, when the motor drives the spiral blade to rotate counterclockwise through the stirring shaft, the second gear can be driven to rotate. The second gear meshes with the first gear for transmission, so that the first gear drives the second sprocket to rotate through the first rotating rod. The second sprocket drives the first sprocket to rotate clockwise through the chain, thereby enabling the first sprocket to drive the drum to rotate, making the rotation direction of the drum opposite to that of the spiral blade. The drum drives the stirring blades thereon to stir the pulp, causing the impurities in the pulp to flocculate and settle. At the same time, the spiral blade can lift the pulp and flocs at the bottom of the treatment tank upward in the drum, allowing the pulp and flocs to flow out through the overflow port. This can prevent the flocs from aggregating and settling and bringing the unreacted flocculant into the bottom of the treatment tank, improving the flocculation efficiency;

[0024] 6. In the present invention, through the combined use of the reduction gearbox, connecting shaft, ring-shaped frame, arc-shaped block, lifting component, and turbulence component, when the stirring shaft rotates, it can drive the connecting shaft to rotate at a reduced speed through the reduction gearbox. The connecting shaft drives the ring-shaped frame and the arc-shaped block to rotate. When the arc-shaped block rotates, the bull's-eye universal ball can roll on the ring-shaped frame and the arc-shaped block under the action of the spring, enabling the bull's-eye universal ball to gradually move upward first and then gradually move downward during the process of passing through the arc-shaped block. During this process, the round rod and the rack can move upward first and then downward. At the same time, when the rack moves up and down, it can drive the third gear to rotate. The third gear drives the turbulence paddles on both sides to rotate through the second rotating rod. Thus, the pulp and the flocculant can be fully mixed and reacted during the mixing and stirring by the stirring blades, the upward lifting and outflow by the spiral blade, and the process of the turbulence paddles, improving the flocculation efficiency. Description of the Drawings

[0025] Figure 1 is the overall schematic diagram of the present invention;

[0026] Figure 2 is the top view schematic diagram of the present invention;

[0027] Figure 3 is the Figure 2 A-A sectional schematic diagram in the present invention;

[0028] Figure 4Partial sectional three-dimensional schematic diagram of the present invention;

[0029] Figure 5 Three-dimensional schematic diagram of the connection of the motor, transmission component and drum of the present invention;

[0030] Figure 6 Schematic diagram of the lifting component and the disturbance component of the present invention;

[0031] Figure 7 Of the present invention Figure 3 Enlarged schematic diagram at position B in

[0032] In the figure: 1. Processing box; 101. Annular bottom plate; 102. Support column; 103. Liquid inlet pipe; 104. Chemical addition pipe; 105. Liquid outlet pipe; 106. Chute; 2. Motor; 201. Stirring shaft; 202. Drum; 203. Sealing bearing; 204. Fixed rod; 205. Spiral blade; 206. Stirring blade; 207. Overflow port; 3. First sprocket; 301. Second sprocket; 302. First rotating rod; 303. First gear; 304. Second gear; 4. Reducer; 401. Connecting shaft; 402. Annular frame; 403. Arc-shaped block; 5. Lifting component; 501. Rack; 502. Round rod; 503. Round plate; 504. Bull's-eye universal ball; 505. Spring; 6. Turbulence component; 601. Sealing box; 602. Third gear; 603. Second rotating rod; 604. Turbulence paddle. Detailed implementation manners

[0033] In order to better understand the purpose, structure and function of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] According to Figures 1-7, the present invention provides a method for dehydrating tungsten concentrate: The thickener includes a treatment tank 1. The top of the treatment tank 1 is fixedly connected to a motor 2 through an L-shaped frame. The output end of the motor 2 is fixedly connected to a stirring shaft 201. One end of the stirring shaft 201 away from the motor 2 sequentially penetrates the top and bottom of the treatment tank 1 and extends below the treatment tank 1. A drum 202 is sleeved on the outer side of the stirring shaft 201 and inside the treatment tank 1. The middle of the top end of the drum 202 is rotatably connected to the outer side of the upper end of the stirring shaft 201 through a sealing bearing 203. A plurality of fixing rods 204 are evenly fixedly connected to the inner side of the bottom end of the drum 202. The other ends of the plurality of fixing rods 204 are rotatably connected to the lower end of the stirring shaft 201 through a sealing bearing 203. A spiral blade 205 is fixedly connected to the outer side of the stirring shaft 201. The spiral blade 205 is located inside the drum 202, and one end of the spiral blade 205 away from the stirring shaft 201 is slidably connected to the inner wall of the drum 202. A plurality of stirring blades 206 are fixedly connected to the outer side of the drum 202, and the plurality of stirring blades 206 are distributed in a circular array. A plurality of overflow ports 207 evenly distributed are opened at the upper end of the drum 202. A transmission component is arranged on the treatment tank 1; The motor 2 drives the stirring shaft 201 to rotate counterclockwise. The stirring shaft 201 drives the spiral blade 205 to rotate. At the same time, the stirring shaft 201 drives the drum 202 to rotate in the opposite direction to the spiral blade 205 through the transmission component. The drum 202 drives the stirring blades 206 thereon to stir the pulp, so that the pulp reacts with the flocculant, making the impurities in the pulp flocculate and settle. At the same time, the spiral blade 205 can lift the pulp and flocs at the bottom of the treatment tank 1 upward in the drum 202, so that the pulp and flocs flow out through the overflow ports 207;

[0035] Specifically, an annular bottom plate 101 is fixedly connected to the outer side of the bottom end of the treatment tank 1. Four support columns 102 distributed in a circular array are fixedly connected to the lower surface of the annular bottom plate 101. A liquid inlet pipe 103 is fixedly communicated with the upper left side of the treatment tank 1. A medicine adding pipe 104 is fixedly connected to the upper left side of the top of the treatment tank 1. A liquid outlet pipe 105 is fixedly communicated with the lower right side of the treatment tank 1. The pulp can be injected into the treatment tank 1 through the liquid inlet pipe 103. The flocculant can be added into the treatment tank 1 through the medicine adding pipe 104. The flocculated pulp can be discharged through the liquid outlet pipe 105.

[0036] Among them, the transmission component includes a first sprocket 3, a second sprocket 301, a first rotating rod 302, a first gear 303 and a second gear 304. The first sprocket 3 is sleeved on the outer side of the top end of the roller 202. The second sprocket 301 is arranged on the right side of the first sprocket 3, and the second sprocket 301 is drivingly connected to the first sprocket 3 through a chain. The bottom end of the first rotating rod 302 is fixedly connected to the upper surface of the second sprocket 301. The top end of the first rotating rod 302 penetrates through the inner top wall of the processing box 1 and extends above the processing box 1. The first rotating rod 302 is rotatably connected to the processing box 1. The lower surface of the first gear 303 is fixedly connected to the extended end of the first rotating rod 302. The second gear 304 is sleeved on the outer side of one end of the stirring shaft 201 close to the motor 2, and the second gear 304 is meshingly connected to the first gear 303; the stirring shaft 201 drives the second gear 304 to rotate counterclockwise. The second gear 304 and the first gear 303 are meshingly driven, so that the first gear 303 drives the second sprocket 301 to rotate through the first rotating rod 302. The second sprocket 301 drives the first sprocket 3 to rotate clockwise through the chain, so that the first sprocket 3 drives the roller 202 to rotate;

[0037] Among them, a speed reducer 4 is installed at the extended end of the stirring shaft 201. A connecting shaft 401 is installed below the speed reducer 4, and the connecting shaft 401 is drivingly connected to the stirring shaft 201 through the speed reducer 4. The speed reducer 4 is fixedly connected to the lower surface of the processing box 1. An annular frame 402 is fixedly connected to the outer side of one end of the connecting shaft 401 far from the speed reducer 4. The speed reducer 4 can reduce the speed of the stirring shaft 201 and output it, so that the speed of the connecting shaft 401 is reduced, so that the annular frame 402 can rotate at a reduced speed.

[0038] Among them, the diameter of the annular frame 402 is equal to the diameter of the processing box 1. Three arc-shaped blocks 403 are fixedly connected to the edge of the upper surface of the annular frame 402. The three arc-shaped blocks 403 are annularly arranged about the central axis of the annular frame 402. The annular frame 402 and the arc-shaped blocks 403 can drive the lifting component 5 to move up and down.

[0039] Among them, three sliding grooves 106 are opened upward at the edge of the lower surface of the treatment box 1, and the sliding grooves 106 correspond to the arc-shaped blocks 403. Lifting components 5 are arranged inside all three sliding grooves 106; the lifting component 5 includes a rack 501, a round rod 502, a round plate 503 and a spring 505. The rack 501 is adapted to the sliding groove 106, and the rack 501 is slidably connected inside the sliding groove 106. The top of the round rod 502 is fixedly connected to the bottom of the rack 501. The round plate 503 is sleeved on the outer side of the lower end of the round rod 502. The spring 505 is sleeved on the outside of the round rod 502. The spring 505 is fixedly connected between the upper surface of the round plate 503 and the lower surface of the treatment box 1. A bull's-eye universal ball 504 is fixedly connected to the bottom of the round rod 502. The bull's-eye universal ball 504 is in rolling connection with the upper surface of the annular frame 402 and the upper surface of the arc-shaped block 403; when the annular frame 402 and the arc-shaped block 403 rotate, when the arc-shaped block 403 rotates, the bull's-eye universal ball 504 can roll on the annular frame 402 and the arc-shaped block 403 under the action of the spring 505, so that the bull's-eye universal ball 504 can first move upward gradually and then move downward gradually during the process of passing through the arc-shaped block 403. During this process, the round rod 502 and the rack 501 can first move upward and then move downward.

[0040] Please refer to Figure 3 , Figure 4 and Figure 6 As shown, in order to improve the full mixing reaction of the flocculant and the pulp, a plurality of flow disturbing components 6 can be arranged at positions on the inner wall of the treatment box 1 corresponding to the three racks 501. The plurality of flow disturbing components 6 are equally spaced from top to bottom. Each flow disturbing component 6 includes a sealing box 601, a third gear 602, a second rotating rod 603 and a flow disturbing paddle 604. The sealing box 601 is fixedly connected to the inner wall of the treatment box 1, and through holes are opened on one side of the sealing box 601 close to the treatment box 1. The third gear 602 is arranged inside the sealing box 601. The second rotating rod 603 is fixedly connected to the middle of the third gear 602, and both ends of the second rotating rod 603 respectively penetrate through the side walls of the sealing box 601 and extend to the outside to be fixedly connected to the flow disturbing paddle 604. The flow disturbing paddle 604 does not contact the inner wall of the treatment box 1; when the rack 501 moves up and down, it can drive the third gear 602 to rotate, and the third gear 602 drives the flow disturbing paddles 604 on both sides to rotate through the second rotating rod 603.

[0041] The working principle of the present invention is as follows: When in use, the pulp is injected into the treatment tank 1 through the liquid inlet pipe 103, and an appropriate amount of flocculant is added into the treatment tank 1 through the chemical dosing pipe 104. The motor 2 is started through an external switch. The motor 2 drives the stirring shaft 201 to rotate counterclockwise. The stirring shaft 201 drives the spiral blade 205 to rotate. At the same time, the stirring shaft 201 drives the second gear 304 to rotate counterclockwise. The second gear 304 meshes with and drives the first gear 303, so that the first gear 303 drives the second sprocket 301 to rotate through the first rotating rod 302. The second sprocket 301 drives the first sprocket 3 to rotate clockwise through the chain, so that the first sprocket 3 drives the drum 202 to rotate, making the rotation direction of the drum 202 opposite to that of the spiral blade 205. The drum 202 drives the stirring blades 206 thereon to stir the pulp, causing the pulp to react with the flocculant, making the impurities in the pulp flocculate and settle. At the same time, the spiral blade 205 can lift the pulp and flocs at the bottom of the treatment tank 1 upward in the drum 202, so that the pulp and flocs flow out through the overflow port 207.

[0042] When the stirring shaft 201 rotates, it can drive the connecting shaft 401 to rotate at a reduced speed through the speed reducer 4. The connecting shaft 401 drives the annular frame 402 and the arc-shaped block 403 to rotate. When the arc-shaped block 403 rotates, the bull's-eye universal ball 504 can roll on the annular frame 402 and the arc-shaped block 403 under the action of the spring 505, so that the bull's-eye universal ball 504 can first move upward gradually and then move downward gradually during the process of passing through the arc-shaped block 403. During this process, the round rod 502 and the rack 501 can first move upward and then move downward. At the same time, when the rack 501 moves up and down, it can drive the third gear 602 to rotate. The third gear 602 drives the spoiler paddles 604 on both sides to rotate through the second rotating rod 603. Thus, the pulp and the flocculant can be fully mixed and reacted during the mixing and stirring by the stirring blades 206, the upward lifting and outflow by the spiral blade 205, and the process of the spoiler paddles 604, improving the flocculation efficiency.

[0043] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A method for dehydrating tungsten concentrate, characterized in that: The tungsten concentrate pulp is concentrated by a thickener, and the high-concentration tungsten concentrate pulp with a discharge concentration greater than 50% at the bottom of a φ15m thickener is transported to a φ2m stirring tank through a hose pump; the high-concentration tungsten concentrate pulp in the φ2m stirring tank is transported to a diaphragm filter press through a sludge pump; the filter cake after pressure filtration enters a microwave dryer through a pressure filtration concentrate bin, and the product obtained after drying is the tungsten concentrate product; Among them, the thickener includes a treatment tank (1). The top of the treatment tank (1) is fixedly connected with a motor (2) through an L-shaped frame. The output end of the motor (2) is fixedly connected with a stirring shaft (201). One end of the stirring shaft (201) away from the motor (2) sequentially penetrates the top and bottom of the treatment tank (1) and extends below the treatment tank (1). A drum (202) is sleeved on the outer side of the stirring shaft (201) and inside the treatment tank (1). The middle of the top end of the drum (202) is rotatably connected to the outer side of the upper end of the stirring shaft (201) through a sealed bearing (203). A plurality of fixing rods (204) are evenly fixedly connected to the inner side of the bottom end of the drum (202). The other ends of the plurality of fixing rods (204) are rotatably connected to the lower end of the stirring shaft (201) through a sealed bearing (203). A spiral blade (205) is fixedly connected to the outer side of the stirring shaft (201). The spiral blade (205) is located inside the drum (202), and one end of the spiral blade (205) away from the stirring shaft (201) is slidably connected to the inner wall of the drum (202). A plurality of stirring blades (206) are fixedly connected to the outer side of the drum (202), and the plurality of stirring blades (206) are distributed in a circular array. A plurality of overflow ports (207) are evenly arranged at the upper end of the drum (202). A transmission assembly is arranged on the treatment tank (1); When using the thickener, the pulp is injected into the treatment tank (1), an appropriate amount of flocculant is added to the treatment tank (1), the motor (2) is started, the motor (2) drives the stirring shaft (201) to rotate, the stirring shaft (201) drives the spiral blade (205) to rotate, and at the same time the stirring shaft (201) drives the drum (202) to rotate through the transmission assembly, so that the rotation direction of the drum (202) is opposite to that of the spiral blade (205). The drum (202) drives the stirring blades (206) thereon to stir the pulp, so that the pulp reacts with the flocculant, the impurities in the pulp are flocculated and settled, and at the same time the spiral blade (205) can lift the pulp and flocs at the bottom of the treatment tank (1) upward in the drum (202), so that the pulp and flocs flow out through the overflow ports (207).

2. The method for dehydrating tungsten concentrate according to claim 1, characterized in that: The outer side of the bottom end of the treatment tank (1) is fixedly connected with an annular bottom plate (101). Four support columns (102) distributed in a circular array are fixedly connected to the lower surface of the annular bottom plate (101). The left upper end of the treatment tank (1) is fixedly communicated with a liquid inlet pipe (103). The left side of the top of the treatment tank (1) is fixedly connected with a medicine adding pipe (104). The right bottom end of the treatment tank (1) is fixedly communicated with a liquid outlet pipe (105).

3. A method for dehydrating tungsten concentrate according to claim 1, characterized in that: The transmission assembly includes a first sprocket (3), a second sprocket (301), a first rotating rod (302), a first gear (303) and a second gear (304). The first sprocket (3) is sleeved on the outer side of the top end of the drum (202). The second sprocket (301) is arranged on the right side of the first sprocket (3), and the second sprocket (301) is drivingly connected to the first sprocket (3) through a chain. The bottom end of the first rotating rod (302) is fixedly connected to the upper surface of the second sprocket (301). The top end of the first rotating rod (302) penetrates through the inner top wall of the processing box (1) and extends above the processing box (1). The first rotating rod (302) is rotatably connected to the processing box (1). The lower surface of the first gear (303) is fixedly connected to the extended end of the first rotating rod (302). The second gear (304) is sleeved on the outer side of one end of the stirring shaft (201) close to the motor (2), and the second gear (304) is meshed with the first gear (303).

4. A method for dehydrating tungsten concentrate according to claim 1, characterized in that: A reduction box (4) is installed at the extended end of the stirring shaft (201). A connecting shaft (401) is installed below the reduction box (4), and the connecting shaft (401) is drivingly connected to the stirring shaft (201) through the reduction box (4). The reduction box (4) is fixedly connected to the lower surface of the processing box (1). An annular frame (402) is fixedly connected to the outer side of one end of the connecting shaft (401) away from the reduction box (4).

5. A method for dehydrating tungsten concentrate according to claim 4, characterized in that: The diameter of the annular frame (402) is equal to the diameter of the processing box (1). Three arc-shaped blocks (403) are fixedly connected to the edge of the upper surface of the annular frame (402). The three arc-shaped blocks (403) are distributed in an annular array about the central axis of the annular frame (402).

6. The method for dehydrating tungsten concentrate according to claim 5, wherein: Three sliding grooves (106) are upwardly formed at the edge of the lower surface of the processing box (1), and the sliding grooves (106) correspond to the arc-shaped blocks (403). Lifting assemblies (5) are arranged inside the three sliding grooves (106).

7. A method for dehydrating tungsten concentrate according to claim 6, characterized in that: The lifting assembly (5) includes a rack (501), a round rod (502), a round plate (503) and a spring (505). The rack (501) is adapted to the sliding groove (106), and the rack (501) is slidably connected inside the sliding groove (106). The top of the round rod (502) is fixedly connected to the bottom of the rack (501). The round plate (503) is sleeved on the outer side of the lower end of the round rod (502). The spring (505) is sleeved on the outer part of the round rod (502). The spring (505) is fixedly connected between the upper surface of the round plate (503) and the lower surface of the processing box (1). A bull's-eye universal ball (504) is fixedly connected to the bottom of the round rod (502). The bull's-eye universal ball (504) is in rolling connection with the upper surface of the annular frame (402) and the upper surface of the arc-shaped block (403).

8. A method for dehydrating tungsten concentrate according to claim 7, characterized in that: A plurality of spoiler components (6) are provided at positions corresponding to the inner wall of the processing box (1) and opposite to the three racks (501). The plurality of spoiler components (6) are equally spaced from top to bottom. Each spoiler component (6) includes a sealed box (601), a third gear (602), a second rotating rod (603) and a spoiler paddle (604). The sealed box (601) is fixedly connected to the inner wall of the processing box (1), and through holes are provided on one side of the sealed box (601) close to the processing box (1). The third gear (602) is arranged inside the sealed box (601). The second rotating rod (603) is fixedly connected to the middle of the third gear (602), and both ends of the second rotating rod (603) respectively penetrate through the side wall of the sealed box (601) and extend to the outside to be fixedly connected to the spoiler paddle (604). The spoiler paddle (604) does not contact the inner wall of the processing box (1).

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