Efficient metal molybdenum tailing treatment dewatering screen

Abstract

The invention discloses an efficient metal molybdenum tailing treatment dewatering screen, and relates to the technical field of sand washing equipment, the efficient metal molybdenum tailing treatment dewatering screen comprises a machine table assembly, a rack assembly is arranged on the top of the machine table assembly, a rack assembly is arranged on the right side of the machine table assembly, and a dewatering assembly is arranged in the rack assembly. During use, the motor, the crankshaft, the connecting rod, the connector and the rack assembly are matched to drive the dewatering assembly to shake front and back, and in the process, a first ratchet gear, a second ratchet gear and a rack assembly in the dewatering assembly are matched to drive a screen to move and convey molybdenum tailing materials to the high position of the front side; the screen surface moving to the high position can resist material accumulation, the water wrapping amount of solid particles is reduced, the problem that the dewatering treatment effect is reduced due to the fact that the flow of an inlet of a traditional dewatering screen is suddenly increased is solved, and the dewatering treatment efficiency and effect of the metal molybdenum tailings are improved.

Description

Technical Field

[0001] The invention relates to the technical field of sand washing equipment, in particular to a high-efficiency metal molybdenum tailings processing dewatering screen. Background Art

[0002] Metal molybdenum tailings are solid waste generated during the molybdenum ore beneficiation process. They are mainly composed of unrecovered molybdenum minerals, gangue minerals and residual reagents, and are usually discharged in the form of high-water content slurry. At present, the treatment methods of molybdenum tailings include dehydration dry stacking, backfilling of goaf areas, building materials preparation and ecological restoration. Among them, the dewatering screen is the core pretreatment equipment. The dewatering screen mainly uses gravity and vibration to make solid particles slide and discharge, and the liquid is separated through the screen.

[0003] At present, in the process of treating molybdenum tailings, the dewatering screen composed of a vibration motor and an inclined screen plate has a relatively stable sliding discharge speed of solid particles in the molybdenum tailings. When the inlet flow suddenly increases, the screen surface material will be too thick. At this time, the liquid in the upper material has not fully passed through the sieve holes for separation and will be discharged from the discharge port along with the solid particles, resulting in incomplete solid-liquid separation, affecting the dewatering treatment effect of the molybdenum tailings.

[0004] Therefore, a high-efficiency metal molybdenum tailings processing dewatering screen is proposed to solve the problems raised in the above background technology. Summary of the Invention

[0005] The object of the present invention is to provide a high-efficiency metal molybdenum tailings processing dewatering screen to solve the problems raised by the above background technology.

[0006] The cam is provided with a toothed plate on the top of the dewatering roller and the toothed plate on the bottom of the dewatering roller is provided with a toothed plate on the bottom of the dewatering roller.

[0007] Preferably, the top of the base frame is rotatably connected to an adjustment platform near the rear side, the top of the adjustment platform is symmetrically fixedly connected to a mounting bracket near the front side, a crankshaft is rotatably connected between the outer surfaces of the two mounting brackets, and a connecting rod is rotatably connected to the crankshaft crankpin position, and a motor is installed on the outer surface of one of the mounting brackets, and the output end of the motor rotates through the outer surface of the mounting bracket and is fixedly connected to the crankshaft main journal.

[0008] Preferably, the front surface of the rear plate is symmetrically fixedly connected to side plates near the edges on both sides, the guide roller, hollow roller and driving roller are all rotatably connected between the outer surfaces of the two side plates, a baffle is fixedly connected between the outer surfaces of the two side plates near the front side, the front surface of the baffle is arc-shaped and the bottom of the baffle and the outer surface of the screen are slidably fitted, the rear surface of the rear plate is fixedly connected to a connector, and the connector is rotatably connected through an axis and the front end of a connecting rod.

[0009] Preferably, side grooves are provided on the outer surfaces of both sides of the adjustment platform near the front side, the adjustment platform is tilted at 15°, and multiple cross wheels are installed on the outer surfaces of the opposite sides of the two side panels near the bottom, and the cross wheels are slidably arranged inside the side grooves.

[0010] Preferably, a wing plate is fixedly connected to the right side of the adjustment platform near the front surface, and the rack assembly includes a mounting shell, and two mounting slots are provided on the top of the mounting shell.

[0011] Preferably, the small pulley and the large pulley are connected via a transmission belt, the small gear and the large gear are meshed and connected, the first ratchet gear is located on the left side of the second ratchet gear, and the small gear is located on the left side of the small pulley.

[0012] Preferably, a first ratchet bar and a second ratchet bar are slidingly connected between the inner walls of the two mounting grooves, respectively, the second ratchet bar is located on the right side of the first ratchet bar, the top of the first ratchet bar is unidirectionally meshed with the outer surface of the first ratchet gear, the top of the second ratchet bar is unidirectionally meshed with the outer surface of the second ratchet gear, and the bottoms of the first ratchet bar and the second ratchet bar are fixedly connected to multiple springs, and the bottoms of the springs are in conflict with the bottom of the mounting groove.

[0013] Preferably, the bottom of the adjustment platform is rotatably connected to a cylinder near the front side, the bottom end of the cylinder is rotatably connected to the top of the base frame near the front side, and a limited height rod is fixedly connected between the outer surfaces of the two side panels near the top.

[0014] Preferably, a water collecting trough is fixedly connected between the outer surfaces of the two side panels, and the bottom of the water collecting trough is fixedly connected to a drainage channel extending to the left. The bottom of the drainage channel is inclined, and the bottom of the water collecting trough is inclined. The front surface of the drainage channel passes through the outer surface of one of the side panels and extends to the left.

[0015] Preferably, the water collection trough and the drainage channel are located between the inner surface walls of the screen, and a water spray head is fixedly connected to a position between the outer surfaces of the two side panels in front of the water collection trough. A narrow slit is provided on the rear surface of the water spray head, and a water inlet hose is fixedly connected to the right surface of the water spray head. The right end of the water inlet hose passes through the outer surface of one of the side panels and extends to the right.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, the motor, crankshaft, connecting rod, connector and frame assembly cooperate to drive the dehydration assembly to swing back and forth. During the process, the first ratchet gear, the second ratchet gear and the rack assembly in the dehydration assembly cooperate to drive the screen to move and transport the molybdenum tailings material to the high position on the front side. The screen surface moving upward can resist material accumulation and reduce the amount of water contained in the solid particles. It solves the problem that a sudden increase in the inlet flow of the traditional dehydration screen will cause a decrease in the dehydration treatment effect, and improves the efficiency and effect of the dehydration treatment of metal molybdenum tailings.

[0017] 2. In the present invention, in the process of transporting the molybdenum tailings mixture to a higher place, the screen only needs simple conventional parts such as gears, racks and pulleys for transmission, and does not require additional driving equipment, thereby avoiding the problem that the driving equipment is easily damaged in a long-term vibration environment, ensuring the use effect of the equipment while reducing costs and energy consumption.

[0018] 3. When the present invention is used, the inclination angle of the adjustment platform can be controlled after the oil cylinder is started according to the concentration of the molybdenum tailings slurry, thereby adapting to the use of molybdenum tailings slurries of different concentrations. The design structure is simple and can ensure both the dehydration effect and the dehydration efficiency.

[0019] 4. When the present invention is used, the liquid separated from the molybdenum tailings material and passing through the sieve holes can be collected and discharged by designing a water collecting trough and drainage channel on the inner side of the sieve, which effectively solves the problem of clogging and pollution caused by sewage passing through the lower surface of the sieve during the dehydration process of the sieve, ensuring the use effect, and the sieve holes that have passed through are flushed from the inside to the outside after external high-pressure water is introduced through the water inlet hose and the sprinkler head, which can flush out foreign matter blocking the sieve holes, ensuring that the sieve holes are unobstructed, and further ensuring the water screening effect of the sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a high-efficiency metal molybdenum tailings processing dewatering screen according to the present invention; Figure 2 This is a three-dimensional view from another angle of the high-efficiency metal molybdenum tailings processing dewatering screen of the present invention; Figure 3 This is a cross-sectional view of a machine assembly of a high-efficiency metal molybdenum tailings processing dewatering screen according to the present invention; Figure 4 This is a partial structural schematic diagram of a high-efficiency metal molybdenum tailings processing dewatering screen of the present invention; Figure 5 This is a schematic structural diagram of a frame assembly of a high-efficiency metal molybdenum tailings processing dewatering screen according to the present invention; Figure 6 This is a schematic diagram of the structure of a frame assembly of a high-efficiency metal molybdenum tailings processing dewatering screen according to the present invention; Figure 7 This is a schematic structural diagram of a dewatering assembly of a high-efficiency metal molybdenum tailings processing dewatering screen according to the present invention; Figure 8 This is a cross-sectional view of a hollow roller of a high-efficiency metal molybdenum tailings processing dewatering screen according to the present invention; Figure 9 This is a schematic structural diagram of the rack assembly of a high-efficiency metal molybdenum tailings processing dewatering screen of the present invention.

[0021] In the figure: 1. Machine assembly; 101. Base frame; 102. Adjustment table; 103. Wing plate; 104. Mounting frame; 105. Crankshaft; 106. Motor; 107. Connecting rod; 108. Side trough; 109. Cylinder; 2. Frame assembly; 201. Rear plate; 202. Connector; 203. Side plate; 204. Height limit rod; 205. Baffle; 206. Water collection tank; 207. Drainage channel; 208. Water inlet hose; 209. Sprinkler head; 210. Cross wheel; 3. Rack assembly; 301. Mounting shell; 302. Mounting slot; 303. First ratchet bar; 304. Second ratchet bar; 305. Spring; 4. Dehydration assembly; 401. Screen; 402. Screen hole; 403. Guide roller; 404. Hollow roller; 405. Inner roller; 406. First ratchet gear; 407. Second ratchet gear; 408. Small pulley; 409. Small gear; 410. Drive roller; 411. Large pulley; 412. Large gear. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1-9As shown, the present invention provides a technical solution: a high-efficiency metal molybdenum tailings processing dewatering screen, comprising: a machine component 1, a frame component 2 is arranged on the top of the machine component 1, a rack component 3 is arranged on the right side of the machine component 1, a dewatering component 4 is arranged inside the frame component 2, the machine component 1 cooperates with the frame component 2 to shake and adjust the angle of the dewatering component 4, comprising a base frame 101, the frame component 2 includes a back plate 201, the dewatering component 4 includes a guide roller 403, a hollow roller 404 and a driving roller 410, the outer surfaces of the guide roller 403, the hollow roller 404 and the driving roller 410 A screen 401 is sleeved in between, and a plurality of screen holes 402 are arranged on the outer surface of the screen 401. The inner roller 405 extending to both sides is rotatably connected inside the hollow roller 404. The right end of the hollow roller 404 is fixedly connected to the first ratchet gear 406, and the right end of the inner roller 405 is fixedly connected to the second ratchet gear 407. The left end of the hollow roller 404 is fixedly connected to a small pulley 408, and the left end of the inner roller 405 is fixedly connected to a small gear 409. The outer surface of the driving roller 410 near the left end is fixedly connected to a large pulley 411, and the left end of the driving roller 410 is fixedly connected to a large gear 412.

[0024] An adjusting platform 102 is rotatably connected to the top of the base frame 101 near the rear side, and a mounting bracket 104 is symmetrically fixedly connected to the top of the adjusting bracket 102 near the front side. A crankshaft 105 is rotatably connected between the outer surfaces of the two mounting brackets 104, and a connecting rod 107 is rotatably connected to the crank pin position of the crankshaft 105. A motor 106 is installed on the outer surface of one of the mounting brackets 104, and the output end of the motor 106 rotates through the outer surface of the mounting bracket 104 and is fixedly connected to the main journal of the crankshaft 105.

[0025] The front surface of the rear plate 201 is symmetrically fixedly connected to the side plates 203 near the edges on both sides. The guide roller 403, the hollow roller 404 and the driving roller 410 are all rotatably connected between the outer surfaces of the two side plates 203. A baffle 205 is fixedly connected between the outer surfaces of the two side plates 203 near the front side. The front surface of the baffle 205 is arc-shaped and the bottom of the baffle 205 slides and fits with the outer surface of the screen 401. The rear surface of the rear plate 201 is fixedly connected to the connector 202, which is rotatably connected through the shaft and the front end of the connecting rod 107.

[0026] Side grooves 108 are provided on the outer surfaces of both sides of the adjustment platform 102 near the front side. The adjustment platform 102 is tilted at 15°. Multiple cross wheels 210 are installed on the outer surfaces of the opposite sides of the two side panels 203 near the bottom. The cross wheels 210 are slidably set inside the side grooves 108.

[0027] A wing plate 103 is fixedly connected to the right side of the adjustment platform 102 near the front surface. The rack assembly 3 includes a mounting shell 301 , and two mounting slots 302 are defined on the top of the mounting shell 301 .

[0028] The small pulley 408 and the large pulley 411 are connected by a transmission belt, the small gear 409 and the large gear 412 are meshed and connected, the first ratchet gear 406 is located on the left side of the second ratchet gear 407, and the small gear 409 is located on the left side of the small pulley 408.

[0029] The first ratchet bar 303 and the second ratchet bar 304 are slidingly connected between the inner walls of the two mounting grooves 302, and the second ratchet bar 304 is located on the right side of the first ratchet bar 303. The top of the first ratchet bar 303 and the outer surface of the first ratchet gear 406 are one-way meshed, and the top of the second ratchet bar 304 and the outer surface of the second ratchet gear 407 are one-way meshed. The bottom of the first ratchet bar 303 and the second ratchet bar 304 are fixedly connected to multiple springs 305, and the bottom of the spring 305 conflicts with the bottom of the mounting groove 302.

[0030] The use steps of the present invention are as follows: the flushed molybdenum tailings slurry is discharged from the front side of the baffle 205 of the device, and the motor 106 is started to drive the crankshaft 105 on the mounting frame 104 to rotate. Since the side plate 203 on which the dewatering component 4 is installed is slidably connected with the side grooves 108 on both sides of the adjusting platform 102 through the cross wheel 210, and a connecting rod 107 is connected between the connecting head 202 on the surface of the rear plate 201 behind the side plate 203 and the crank pin of the crankshaft 105, the rotating crankshaft 105 will drive the rear plate 201, the side plate 203 and the dewatering component 4 to reciprocate back and forth. In this process, since the discharge direction height of the front side of the adjusting platform 102 is relatively high, the molybdenum tailings mixture on the surface of the screen 401 will The dehydration component 406 slides down to the lower part of the forward side, and the water in the mixed material will gradually pass through the sieve hole 402 during the shaking process, thereby being separated from the solid particles. At the same time, the dehydration component 4 moves back and forth during the shaking process. When moving forward, the straight surface of the ratchet teeth on the surface of the first ratchet gear 406 will conflict with the straight surface of the surface of the first ratchet bar 303, so that the first ratchet gear 406 rotates forward and drives the hollow roller 404 to rotate synchronously. At this time, the hollow roller 404 simultaneously drives the small pulley 408 to rotate and drives the driving roller 410 to rotate clockwise through the transmission belt and the large pulley 411. During the process, the large gear 412 will rotate synchronously clockwise and drive the small gear 409 to rotate counterclockwise. When the small gear 409 moves forward and rotates counterclockwise, the inclined surface of the ratchet teeth on its surface will contact the second ratchet bar 304. The inclined surfaces conflict with each other and the resistance is small, so the second ratchet bar 304 will be continuously squeezed and move downward. During the process, the second ratchet bar 304 will retract into the installation groove 302 and squeeze the spring 305 to contract. On the contrary, when the dehydration component 4 moves backward, the first ratchet gear 406 and the first ratchet bar 303 will be out of the one-way meshing state, and the second ratchet gear 407 will be in the one-way meshing state with the second ratchet bar 304. Therefore, the second ratchet gear 407 will be in a counterclockwise rotation state during the backward movement and drive the driving roller 410 to continue to rotate clockwise after the inner roller 405, the small gear 409 and the large gear 412 cooperate. Therefore, the driving roller 410 will always be in a clockwise rotation state during the back and forth shaking of the dehydration component 4, and the hollow roller 40 4 will also maintain a clockwise rotation state with the driving roller 410. At this time, under the guidance of the guide roller 403, the driving roller 410 will drive the screen 401 as a whole to be in a forward motion state. In this state, the driven screen 401 has the effect of offsetting the sliding of the mixed material to the lower part of the front side and can slowly transport the mixed material to the discharge port at the higher part of the rear side. During the process, the upward moving screen surface can resist material accumulation and reduce the amount of water contained in the solid particles, thereby solving the problem that the sudden increase in inlet flow rate will cause the dehydration treatment effect to decrease, thereby improving the efficiency and effect of the metal molybdenum tailings dehydration treatment. In addition, in the process of the screen 401 transporting the molybdenum tailings mixed material to the higher place, only simple conventional parts such as gears, racks and pulleys are required for transmission, and no additional driving equipment is required.This prevents the drive equipment from being easily damaged in a long-term vibration environment, ensuring the equipment's performance while reducing costs and energy consumption. Baffle 205 is used to block material from the upper surface of screen 401, limiting the material accumulation position. Cross wheel 210, consisting of a cross bracket and rollers at its four corners, converts sliding friction between side plate 203 and adjustment platform 102 into rolling friction, reducing friction and increasing the flexibility of side plate 203's back-and-forth swinging. Wing plate 103 is used to mount rack assembly 3.

[0031] Example 2: Figures 1-8 As shown, the difference between the embodiment and the basis is that the bottom of the adjusting platform 102 near the front side is rotatably connected to the cylinder 109, the bottom end of the cylinder 109 and the top of the base frame 101 near the front side are rotatably connected, and the limited height rod 204 is fixedly connected between the outer surfaces of the two side panels 203 near the top.

[0032] The use steps of the present invention are as follows: the two side plates 203 are connected to the rear plate 201 through the height limiting rod 204. When the material is discharged from the rear side and accumulated at the lower part of the upper surface of the screen 401, the screen 401 is in a state of rocking back and forth as a whole and gradually transports the material to the higher part of the front side. In this process, the accumulated material will collide and conflict when passing the position of the height limiting rod 204. At this time, the material will be scraped flat, further limiting the stacking height of the material and ensuring the liquid penetration rate. According to the concentration of the molybdenum tailings slurry, the oil cylinder 109 can be started to extend and retract to drive the front side of the adjusting platform 102 to rise and fall. At this time, the rear side of the adjusting platform 102 will rotate with the base frame 101 and the height of the rear side remains unchanged, thereby achieving the effect of controlling the inclination angle of the adjusting platform 102 and the screen 401. When the movement speed of the screen 401 remains unchanged, the larger its inclination angle, the slower the conveying speed, which is suitable for use when the slurry concentration is large. The smaller its inclination angle, the faster the conveying speed, which is suitable for use when the slurry concentration is small, which can ensure both the dehydration effect and the dehydration efficiency.

[0033] Example 3: Figure 1-Figure 4 and Figure 6 As shown, the difference between the embodiment and the present invention is that a water collecting trough 206 is fixedly connected between the outer surfaces of the two side panels 203, and the bottom of the water collecting trough 206 is fixedly connected to a drainage channel 207 extending to the left. The bottom of the drainage channel 207 is inclined, and the bottom of the water collecting trough 206 is inclined. The front surface of the drainage channel 207 passes through the outer surface of one of the side panels 203 and extends to the left.

[0034] The water collecting trough 206 and the drainage channel 207 are located between the inner surface walls of the screen 401. A water spray head 209 is fixedly connected to the position in front of the water collecting trough 206 between the outer surfaces of the two side panels 203. A narrow slit is provided on the rear surface of the water spray head 209. The right surface of the water spray head 209 is fixedly connected to a water inlet hose 208. The right end of the water inlet hose 208 passes through the outer surface of one of the side panels 203 and extends to the right.

[0035] The use steps of the present invention are as follows: when the liquid in the molybdenum tailings material penetrates through the sieve holes 402 on the upper surface of the screen 401, it will fall downward into the sump 206 inside the screen 401, and then gather to a lower place under the action of gravity and enter the drainage channel 207, and finally be discharged from the front side under the action of the internal inclined surface of the drainage channel 207. This design effectively solves the problem that during the dehydration process of the screen 401, the sewage will pass through the lower surface of the screen 401 and cause blockage and pollution, thereby ensuring the use effect. In addition, during the dehydration process of the molybdenum tailings, an external high-pressure water source is introduced through the water inlet hose 208. When the external high-pressure water enters the inside of the water spray head 209 through the water inlet hose 208, it will impact the rear position of the screen 401 with a higher pressure through the narrow gap on the rear side of the water spray head 209, and is reversely flushed from the inside to the outside, which can wash out the foreign matter blocking the sieve holes 402, ensuring that the sieve holes 402 are unobstructed, and further ensuring the water screening effect of the screen 401.

[0036] The effect and working principle achieved by the entire mechanism are as follows: when the device is used to dehydrate the metal molybdenum tailings mixture, the washed molybdenum tailings slurry is discharged from the front side of the baffle 205 of the device, and at this time, the starting motor 106 drives the crankshaft 105 on the mounting frame 104 to rotate. Since the side plate 203 on which the dehydration component 4 is installed is slidably connected through the cross wheel 210 and the side grooves 108 on both sides of the adjustment platform 102, and a connecting rod 107 is connected between the connecting head 202 on the surface of the rear plate 201 on the rear side of the side plate 203 and the crank pin of the crankshaft 105, the rotating crankshaft 105 will drive the rear plate 201, the side plate 203 and the dehydration component 4 to reciprocate back and forth. In this process, since the discharge direction height of the front side of the adjustment platform 102 is relatively high, the side plate 203 is slidably connected to the side plate 203. The dewatering assembly 4 is high, so when the dewatering assembly 4 follows the side plate 203 to rock back and forth, the molybdenum tailings mixture on the surface of the screen 401 will slide to the lower part of the front side, and the water in the mixed material will gradually pass through the screen hole 402 during the rocking process, thereby separating from the solid particles. At the same time, the dewatering assembly 4 moves back and forth during the rocking process. When moving forward, the straight surface of the ratchet teeth on the surface of the first ratchet gear 406 will conflict with the straight surface of the surface of the first ratchet bar 303, so that the first ratchet gear 406 rotates forward and drives the hollow roller 404 to rotate synchronously. At this time, the hollow roller 404 also drives the small pulley 408 to rotate and drives the driving roller 410 to rotate clockwise through the transmission belt and the large pulley 411. During the process, the large gear 412 will rotate synchronously clockwise and drive the small gear 4 09 rotates counterclockwise, when the small gear 409 moves forward and rotates counterclockwise, the inclined surface of the ratchet on its surface will conflict with the inclined surface of the second ratchet bar 304, and the resistance is small. Therefore, the second ratchet bar 304 will be continuously squeezed and move downward. During the process, the second ratchet bar 304 will retract into the inside of the mounting groove 302 and squeeze the spring 305 to contract. Conversely, when the dehydration component 4 moves backward, the first ratchet gear 406 and the first ratchet bar 303 will be out of the one-way meshing state, and the second ratchet gear 407 will be in a one-way meshing state with the second ratchet bar 304. Therefore, the second ratchet gear 407 will be in a counterclockwise rotation state during its backward movement and drive the driving roller 410 through the cooperation of the inner roller 405, the small gear 409 and the large gear 412. Continue to rotate clockwise, so the driving roller 410 of the dewatering component 4 will always be in a clockwise rotating state during the back and forth shaking process, and the hollow roller 404 will also maintain a clockwise rotating state with the driving roller 410. At this time, under the guidance of the guide roller 403, the driving roller 410 will drive the screen 401 as a whole to be in a forward moving state. The driven screen 401 in this state has the effect of offsetting the sliding of the mixed material to the low position on the front side and can slowly transport the mixed material to the discharge port at the high position on the rear side. During the process, the screen surface moving upwards can resist material accumulation and reduce the amount of water contained in the solid particles, thereby solving the problem that the sudden increase in inlet flow rate will cause the dehydration treatment effect to decline, thereby improving the efficiency and effect of the metal molybdenum tailings dehydration treatment, and,In the process of conveying the molybdenum tailings mixture to a higher place, the screen 401 only requires conventional parts such as simple gears, racks, and pulleys for transmission, without the need for additional drive equipment. This avoids the problem of the drive equipment being easily damaged in a long-term vibration environment, ensures the use effect of the equipment, and has the effect of reducing costs and energy consumption. The two side plates 203 are connected to the rear plate 201 through the height limiting rods 204. When the material is discharged from the rear side and accumulates at the lower part of the upper surface of the screen 401, the screen 401 as a whole is in a state of shaking back and forth and gradually transports the material to the higher part of the front side. During this process, the accumulated material will collide and resist when passing the position of the height limiting rods 204. At this time, the material will be scraped flat, further limiting the accumulation height of the material and ensuring the liquid penetration speed. During use of the device, according to the concentration of the molybdenum tailings slurry, the oil cylinder 109 can be activated to extend and retract, driving the front side of the adjusting platform 102 to rise and fall. At this time, the rear side of the adjusting platform 102 will rotate with the base frame 101 and the height of the rear side remains unchanged, thereby achieving the effect of controlling the inclination angle of the adjusting platform 102 and the screen 401. When the movement speed of the screen 401 remains unchanged, the larger the inclination angle, the slower the conveying speed, which is suitable for use when the slurry concentration is high. The smaller the inclination angle, the faster the conveying speed, which is suitable for use when the slurry concentration is low, thereby ensuring both the dehydration effect and the dehydration efficiency. When the liquid in the molybdenum tailings material penetrates through the sieve holes 402 on the upper surface of the screen 401, it will fall down into the sump 206 inside the screen 401, and then gather to a lower place under the action of gravity and enter the drainage channel 207, and finally be discharged from the front side under the action of the internal inclined surface of the drainage channel 207. This design effectively solves the problem of clogging and pollution caused by sewage passing through the lower surface of the screen 401 during the dehydration process of the screen 401, ensuring the use effect. In addition, during the dehydration process of the molybdenum tailings, an external high-pressure water source is introduced through the water inlet hose 208. When the external high-pressure water enters the inside of the sprinkler head 209 through the water inlet hose 208, it will impact the rear position of the screen 401 with a higher pressure through the narrow gap on the rear side of the sprinkler head 209, and is reversely flushed from the inside to the outside, which can wash out foreign matter blocking the sieve holes 402, ensuring that the sieve holes 402 are unobstructed, and further ensuring the water screening effect of the screen 401.

[0037] 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 scope of protection of the present invention.

Claims

1. A high-efficiency metal molybdenum tailings processing dewatering screen, characterized in that, include: A machine assembly (1), wherein a frame assembly (2) is provided on the top of the machine assembly (1), a rack assembly (3) is provided on the right side of the machine assembly (1), and a dehydration assembly (4) is provided inside the frame assembly (2); The machine assembly (1) cooperates with the frame assembly (2) to shake and adjust the angle of the dehydration assembly (4), and includes a base frame (101); The frame assembly (2) includes a rear plate (201); The dewatering assembly (4) comprises a guide roller (403), a hollow roller (404) and a driving roller (410). A screen (401) is sleeved between the outer surfaces of the guide roller (403), the hollow roller (404) and the driving roller (410). The outer surface of the screen (401) is provided with a plurality of screen holes (402). The hollow roller (404) is internally rotatably connected to an inner roller (405) extending to both sides. The right end of the hollow roller (404) is fixedly connected to a first ratchet gear (406). The right end of the inner roller (405) is fixedly connected to a second ratchet gear (407). The left end of the hollow roller (404) is fixedly connected to a small pulley (408). The left end of the inner roller (405) is fixedly connected to a small gear (409). A large pulley (411) is fixedly connected to the outer surface of the driving roller (410) near the left end. The left end of the driving roller (410) is fixedly connected to a large gear (412).

2. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 1 is characterized in that: The top of the base frame (101) is rotatably connected to an adjustment platform (102) near the rear side, and the top of the adjustment platform (102) is symmetrically fixedly connected to a mounting frame (104) near the front side. A crankshaft (105) is rotatably connected between the outer surfaces of the two mounting frames (104), and a connecting rod (107) is rotatably connected to the crank pin position of the crankshaft (105). A motor (106) is installed on the outer surface of one of the mounting frames (104), and the output end of the motor (106) rotates through the outer surface of the mounting frame (104) and is fixedly connected to the main journal of the crankshaft (105).

3. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 2 is characterized in that: The front surface of the rear plate (201) is symmetrically fixedly connected to the side plates (203) near the edges on both sides. The guide roller (403), the hollow roller (404) and the driving roller (410) are all rotatably connected between the outer surfaces of the two side plates (203). A baffle (205) is fixedly connected between the outer surfaces of the two side plates (203) near the front side. The front surface of the baffle (205) is arranged in an arc shape, and the bottom of the baffle (205) and the outer surface of the screen (401) are slidably fitted. The rear surface of the rear plate (201) is fixedly connected to a connector (202), and the connector (202) is rotatably connected via a shaft and the front end of a connecting rod (107).

4. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 3 is characterized in that: Side grooves (108) are provided on the outer surfaces of both sides of the adjustment platform (102) near the front side. The adjustment platform (102) is tilted at 15 degrees. A plurality of cross wheels (210) are installed on the outer surfaces of the opposite sides of the two side plates (203) near the bottom. The cross wheels (210) are slidably arranged inside the side grooves (108).

5. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 2 is characterized in that: A wing plate (103) is fixedly connected to the right side of the adjustment platform (102) near the front surface. The rack assembly (3) includes a mounting shell (301). Two mounting slots (302) are provided on the top of the mounting shell (301).

6. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 1 is characterized in that: The small pulley (408) and the large pulley (411) are connected by a transmission belt, the small gear (409) and the large gear (412) are meshed and connected, the first ratchet gear (406) is located on the left side of the second ratchet gear (407), and the small gear (409) is located on the left side of the small pulley (408).

7. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 5 is characterized in that: A first ratchet bar (303) and a second ratchet bar (304) are slidably connected between the inner walls of the two mounting grooves (302), respectively. The second ratchet bar (304) is located on the right side of the first ratchet bar (303). The top of the first ratchet bar (303) is unidirectionally meshed with the outer surface of the first ratchet gear (406). The top of the second ratchet bar (304) is unidirectionally meshed with the outer surface of the second ratchet gear (407). The bottoms of the first ratchet bar (303) and the second ratchet bar (304) are fixedly connected with a plurality of springs (305), and the bottoms of the springs (305) are in conflict with the inner bottom of the mounting groove (302).

8. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 3 is characterized by: The bottom of the adjustment platform (102) is rotatably connected to a cylinder (109) near the front side, the bottom end of the cylinder (109) is rotatably connected to the top of the base frame (101) near the front side, and a height limiting rod (204) is fixedly connected between the outer surfaces of the two side plates (203) near the top.

9. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 8, characterized in that: A water collecting trough (206) is fixedly connected between the outer surfaces of the two side plates (203), and a drainage channel (207) extending to the left is fixedly connected to the bottom of the water collecting trough (206). The inner bottom of the drainage channel (207) is inclined. The inner bottom of the water collecting trough (206) is inclined. The front surface of the drainage channel (207) passes through the outer surface of one of the side plates (203) and extends to the left.

10. The high-efficiency metal molybdenum tailings processing dewatering screen according to claim 9, characterized in that: The water collecting trough (206) and the drainage channel (207) are located between the inner surface walls of the screen (401). A water spray head (209) is fixedly connected to a position in front of the water collecting trough (206) between the outer surfaces of the two side plates (203). A narrow slit is provided on the rear surface of the water spray head (209). A water inlet hose (208) is fixedly connected to the right surface of the water spray head (209). The right end of the water inlet hose (208) passes through the outer surface of one of the side plates (203) and extends to the right.

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