Spiral classifier for diamond beneficiation and using method of spiral classifier

Abstract

The invention relates to the technical field of spiral classifiers, in particular to a spiral classifier for diamond beneficiation and a using method thereof.The spiral classifier comprises a water tank, spiral blades are rotationally connected to the inner wall of the water tank, a driving motor is fixedly assembled on the outer wall of the water tank, and the output end of the driving motor is fixedly connected with the spiral blades; the outer wall of the water tank is fixedly communicated with a drainage pipe and a discharge pipe, the discharge pipe is higher than the drainage pipe, the stirring structure is arranged on the inner wall of the water tank and used for scattering caked diamond ore, and the stirring structure comprises a bearing frame fixedly installed on the inner wall of the water tank. According to the spiral classifier, by arranging the stirring structure, when the diamond ore is subjected to classified ore separation, the flow guide pieces make contact with the caked diamond ore, then the diamond ore can be scattered till the caked diamond ore is disintegrated into ore grains with the proper size, and therefore the diamond ore is fully classified, and the practicability of the spiral classifier is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spiral classifiers, and in particular to a spiral classifier for diamond beneficiation and a use method thereof. Background Art

[0002] The spiral classifier is a device that uses the principle that solid particles of different sizes and specific gravities have different settling speeds in liquids to perform mechanical classification. When diamond ore is beneficiated, a spiral classifier is used to preliminarily remove impurities from the minerals.

[0003] In the prior art, when diamond ore enters the classifier, it is mixed with water to form slurry. The slurry is stirred by spiral blades in the water tank of the classifier. Fine ore particles float in the water to form overflow, which is discharged from a drainage pipe set at a certain height and flows into the next process; coarse ore particles sink to the bottom of the tank and are pushed to the upper discharge pipe by the spiral blades for discharge, thereby achieving material classification.

[0004] The above-mentioned and prior art technologies have the following defects: in the process of using a spiral classifier to beneficiate diamond ore, it is easy for agglomerated diamond ore to be put into the water tank together. At this time, the agglomerated diamond ore will sink quickly and be transported upward and discharged by the blades, resulting in insufficient time for water to soak and disintegrate the agglomerated diamond ore. When the discharged agglomerated diamond ore is mixed with coarse ore particles, it takes time to perform secondary classification of the mixed ore particles, which reduces the practicality of the spiral classifier.

[0005] Therefore, a spiral classifier for diamond beneficiation and a method for using the same are proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that in the process of using a spiral classifier, agglomerated diamond ore will sink quickly and be transported upward by blades and discharged. When the discharged agglomerated diamond ore is mixed with coarse ore particles, it takes time to perform secondary classification of the mixed ore particles. A spiral classifier for diamond ore dressing and a method of using the same are proposed.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a spiral classifier for diamond beneficiation and a method for using the same, comprising a water tank, the inner wall of which is rotatably connected with a spiral blade, the outer wall of which is fixedly equipped with a drive motor, the output end of which is fixedly connected with the spiral blade, the outer wall of which is fixedly connected with a drain pipe and a discharge pipe, the discharge pipe is higher than the drain pipe, and further comprising: A stirring structure is arranged on the inner wall of the water tank and is used to break up the agglomerated diamond ore. The stirring structure includes a receiving frame fixedly mounted on the inner wall of the water tank, a guide plate for stirring the water flow, and a filter frame for limiting the distribution range of the agglomerated diamond ore; A pre-screening structure is arranged on the inner wall of the receiving frame to prevent the large-volume agglomerated diamond ore from affecting the normal operation of the filter frame. The pre-screening structure includes a plurality of support rods rotatably mounted in the receiving frame, an adjustment plate and a baffle plate for adjusting the size of the agglomerated diamonds that can pass through; The jet structure is arranged on the inner wall of the water tank and is used to flush the large-volume agglomerated diamond ore with the help of jet. The jet structure includes a sealing frame fixedly installed on the inner wall of the water tank, a piston plate for pressing water to form a jet, and a nozzle for discharging the jet.

[0008] The effects achieved by the above components are as follows: by setting the stirring structure, when the diamond ore is graded and selected, the guide plate can break up the diamond ore after contacting the agglomerated diamond ore until the agglomerated diamond ore is disintegrated into ore particles of suitable size, thereby fully classifying the diamond ore and improving the practicality of the spiral classifier; by setting the pre-screening structure, in the process of adding the diamond ore, the agglomerated diamond ore with a large volume will remain above the adjusting plate and the baffle or be stuck between the adjusting plate and the baffle, thereby preventing a large amount of agglomerated diamond ore from entering the filter frame in large quantities, causing the instantaneous filtration volume of the filter frame to surge and be blocked; by setting the jet structure, in the process of breaking up the agglomerated diamond ore, water will be discharged from the nozzle in the form of a jet, and when the jet contacts the large diamond ore, it can impact the diamond ore and initially break up the diamond ore, and the water will gradually soak the diamond ore after contacting the diamond ore until the agglomerated diamond ore is disintegrated into a suitable size.

[0009] Preferably, the filter frame is fixedly connected to the lower surface of the receiving frame, a rotating shaft is horizontally rotatably connected inside the filter frame, the rotating shaft is rotatably connected to the water tank, a servo motor is fixedly connected to the outer wall of the water tank, the output end of the servo motor is fixedly connected to the rotating shaft, a plurality of levers are fixedly connected to the outer circumferential surface of the rotating shaft, and the guide plate is fixedly connected to the lever.

[0010] The effect achieved by the above components is: when the servo motor is turned on, the rotation of the output end of the servo motor will drive the rotation of the shaft, the rotation of the shaft will drive the lever to move, the movement of the lever will drive the guide vane to move, and the guide vane can break up the clumped diamond ore after contacting the clumped diamond ore, until the clumped diamond ore is disintegrated into ore particles of suitable size.

[0011] Preferably, the vertical cross section of the filter frame is a "Z"-shaped broken line structure.

[0012] The effect achieved by the above-mentioned components is: by making the vertical cross-section of the filter frame into a "Z"-shaped broken line structure, the inner wall of the filter frame forms a linear tip, which increases the filtration area of ​​the filter frame and improves the efficiency of the mineral particles passing through. At the same time, after the agglomerated diamond ore contacts the filter frame, the linear tip of the filter frame can break up the agglomerated diamond ore for a second time, thereby improving the efficiency of disintegrating the agglomerated diamond ore.

[0013] Preferably, a U-shaped plate is fixedly connected to the outer circumferential surface of the rotating shaft, and a plurality of brush filaments abutting against the inner wall of the filter frame are fixedly connected to the surface of the U-shaped plate.

[0014] The effects achieved by the above components are: the rotation of the shaft will drive the U-shaped plate to move, and the U-shaped plate will drive the brush wire to slide along the inner wall of the filter frame, brushing the inner wall of the filter frame to reduce the adhesion of mineral particles and ensure that the filter frame can filter normally.

[0015] Preferably, the adjustment plate is fixedly mounted on the outer circumferential surface of the support rod, both ends of the adjustment plate are against the inner wall of the receiving frame, the baffle is fixedly mounted on the inner wall of the receiving frame, both ends of the support rod are fixedly connected with extension plates, the surface of the extension plate is fixedly connected with a transmission block, the outer wall of the receiving frame is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with a strip frame, and the transmission block is against the inner wall of the strip frame.

[0016] The effect achieved by the above components is: when it is necessary to adjust the volume of diamond ore entering the filter frame, the output end of the electric push rod is controlled to move, and the output end of the electric push rod will drive the strip frame to move synchronously, the movement of the strip frame will drive the transmission block to move, the movement of the transmission block will drive the extension plate to move, the movement of the extension plate will drive the support rod to rotate, and the support rod will drive the adjustment plate to rotate. When the adjustment plate rotates in the direction close to the baffle, the distance between the adjustment plate and the baffle becomes smaller. At this time, the volume of diamond ore and the amount of ore that can enter the filter frame will become smaller. When the adjustment plate rotates in the direction away from the baffle, the distance between the adjustment plate and the baffle becomes larger. At this time, the volume of diamond ore and the amount of ore that can enter the filter frame will become larger. Therefore, a suitable speed can be selected according to the ore quality of the diamond ore to make the diamond ore enter the filter frame.

[0017] Preferably, one end of the adjustment plate away from the support rod is fixedly connected with a sealing sleeve.

[0018] The effect achieved by the above components is: when the spiral classifier is not in use, the output end of the electric push rod is controlled to move upward, the adjusting plate will rotate upward, and the rotation of the adjusting plate will cause the sealing sleeve to rest against the surface of the baffle. The adjusting plate, the baffle and the sealing sleeve can cooperate to seal the receiving frame to prevent foreign matter from entering the filter frame, making it convenient to use the spiral classifier directly afterwards and reducing the difficulty of maintenance.

[0019] Preferably, the piston plate is slidably mounted on the inner wall of the sealing frame, the upper surface of the piston plate is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly connected with a protrusion, the outer circumferential surface of the rotating shaft is fixedly connected with a cam, the surface of the cam is provided with a groove matching the protrusion, the outer circumferential surface of the sealing frame is fixedly connected with a water pipe, one end of the water pipe is fixedly connected with a water distribution pipe, the nozzle is fixedly connected to the surface of the water distribution pipe, the vertical cross-section of the nozzle is trapezoidal, the nozzle is inclined to the horizontal plane, and the surface of the piston plate is provided with a water inlet hole.

[0020] The effects achieved by the above components are as follows: in the process of breaking up the clumped diamond ore, the rotating shaft drives the cam to rotate, and the cam drives the protrusion along the inner wall of the groove to slide in the vertical direction. When the protrusion slides downward, the protrusion drives the connecting plate to move downward, and the movement of the connecting plate drives the piston plate to slide along the inner wall of the sealing frame. The sliding of the piston plate squeezes water, and the water enters the water distribution pipe through the water guide pipe, and is then discharged by the nozzle in the form of a jet. When the jet comes into contact with the larger diamond ore, it can impact the diamond ore and initially break up the diamond ore. Moreover, after the water comes into contact with the diamond ore, it will gradually soak the diamond ore until the clumped diamond ore is disintegrated into a suitable size.

[0021] Preferably, the piston plate is fixedly connected to a filter cartridge at a position relative to the water inlet hole, the inner wall of the sealing frame is fixedly connected to a perforated plate, and the perforated plate is slidably sleeved on the outer circumferential surface of the filter cartridge.

[0022] The effects achieved by the above components are: the filter cartridge will filter the water to prevent large-volume mineral particles from clogging the nozzle, and the orifice plate can limit the movement path of the filter cartridge, thereby limiting the movement path of the piston plate to prevent the protrusion and the groove from misaligning and getting stuck.

[0023] Preferably, a fixing block is fixedly connected to the lower surface of the piston plate, a flexible pad and a plurality of elastic strips are fixedly connected to the outer circumferential surface of the fixing block, and the elastic strips are fixedly connected to the flexible pad.

[0024] The effects achieved by the above components are: when the protrusion slides downward, the flexible pad will be tightly attached to the surface of the piston plate due to the resistance of water, thereby blocking the water inlet hole, and the elastic strip can strengthen the flexible pad; when the protrusion slides upward, the flexible pad will bend due to the resistance of water and break away from contact with the piston plate, and water can flow through the water inlet hole into between the piston plate and the sealing frame.

[0025] The method of using the spiral classifier for diamond beneficiation includes the following steps: S1. Let the external water source flow into the water tank, and the liquid level will reach and remain at the height of the drain pipe; S2. Turn on the drive motor and put the diamond ore into the receiving frame. The ore particles with normal volume will flow directly out of the filter frame with the water flow. The fine ore particles will overflow through the drain pipe with the water, and the coarse particles will be transported upward by the spiral blades to the discharge pipe for discharge; S3, turn on the servo motor, the guide plate will come into contact with the agglomerated diamond ore to break up the diamond ore, and the piston plate will slide to squeeze the water, and the water will enter the water distribution pipe through the water guide pipe, and then be discharged by the nozzle in the form of a jet; S4. The distance between the baffle and the adjusting plate is adjusted by controlling the extension and contraction of the electric push rod, thereby adjusting the volume of the diamond ore entering the filter frame.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, by providing a stirring structure, when diamond ore is classified and beneficiated, the guide plate can break up the diamond ore after contacting the agglomerated diamond ore until the agglomerated diamond ore is disintegrated into ore particles of suitable size, thereby fully classifying the diamond ore and improving the practicality of the spiral classifier.

[0027] 2. In the present invention, by setting a pre-screening structure, during the process of adding diamond ore, larger agglomerated diamond ore will remain above the adjusting plate and the baffle or be stuck between the adjusting plate and the baffle, thereby preventing a large amount of larger agglomerated diamond ore from entering the filter frame in large quantities, causing the instantaneous filtration volume of the filter frame to surge and be blocked.

[0028] 3. In the present invention, by providing a jet structure, water will be discharged from the nozzle in the form of a jet in the process of breaking up the clumped diamond ore. When the jet comes into contact with the larger diamond ore, it can impact the diamond ore to initially break up the diamond ore. Moreover, after the water comes into contact with the diamond ore, it will gradually soak the diamond ore until the clumped diamond ore is disintegrated into a suitable size. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the water tank of the present invention; Figure 3 It is a structural schematic diagram of the receiving frame of the present invention; Figure 4 It is a schematic diagram of the split structure of the filter frame of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the filter frame of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the receiving frame of the present invention; Figure 7 It is a structural schematic diagram of the adjustment plate of the present invention; Figure 8 It is a structural schematic diagram of the support rod of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the sealing frame of the present invention; Fig.10 It is a structural schematic diagram of the piston plate of the present invention.

[0030] Legend: 1. Water tank; 2. Spiral blade; 3. Driving motor; 4. Drain pipe; 5. Discharge pipe; 6. Receiving frame; 7. Filter frame; 8. Rotating shaft; 9. Servo motor; 10. Push rod; 11. Guide vane; 12. U-shaped plate; 13. Brush wire; 14. Support rod; 15. Adjusting plate; 16. Baffle; 17. Extension plate; 18. Transmission block; 19. Electric push rod; 20. Bar frame; 21. Sealing frame; 22. Piston plate; 23. Connecting plate; 24. Bump; 25. Cam; 26. Groove; 27. Water guide pipe; 28. Water distribution pipe; 29. ​​Spray pipe; 30. Water inlet hole; 31. Fixing block; 32. Flexible pad; 33. Elastic strip; 34. Filter cartridge; 35. Orifice plate; 36. Sealing sleeve. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0033] like Figure 1-Figure 10As shown, the present invention provides a spiral classifier for diamond beneficiation and a method for using the same, comprising a water tank 1, wherein the inner wall of the water tank 1 is rotatably connected with a spiral blade 2, the outer wall of the water tank 1 is fixedly equipped with a driving motor 3, the output end of the driving motor 3 is fixedly connected with the spiral blade 2, the outer wall of the water tank 1 is fixedly connected with a drain pipe 4 and a discharge pipe 5, the discharge pipe 5 is higher than the drain pipe 4, and further comprising: a stirring structure arranged on the inner wall of the water tank 1 for breaking up agglomerated diamond ore, the stirring structure comprising a receiving frame 6 fixedly installed on the inner wall of the water tank 1, a guide plate 11 for stirring water flow, and a guide plate 12 for limiting agglomeration. a filter frame 7 for filtering the distribution range of diamond ore; a pre-screening structure arranged on the inner wall of the receiving frame 6 for preventing the large-volume agglomerated diamond ore from affecting the normal operation of the filter frame 7, the pre-screening structure comprising a plurality of support rods 14 rotatably mounted in the receiving frame 6, an adjusting plate 15 and a baffle 16 for adjusting the size of the agglomerated diamond ore that can pass through; a jet structure arranged on the inner wall of the water tank 1 for flushing the large-volume agglomerated diamond ore with the help of a jet, the jet structure comprising a sealing frame 21 fixedly mounted on the inner wall of the water tank 1, a piston plate 22 for pressing water to form a jet, and a nozzle 29 for discharging the jet.

[0034] The filter frame 7 is fixedly connected to the lower surface of the receiving frame 6. A rotating shaft 8 is horizontally rotatably connected inside the filter frame 7. The rotating shaft 8 is rotatably connected to the water tank 1. A servo motor 9 is fixedly connected to the outer wall of the water tank 1. The output end of the servo motor 9 is fixedly connected to the rotating shaft 8. A plurality of levers 10 are fixedly connected to the outer circumferential surface of the rotating shaft 8. A guide vane 11 is fixedly connected to the lever 10. When the servo motor 9 is turned on, the rotation of the output end of the servo motor 9 will drive the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 will drive the lever 10 to move. The movement of the lever 10 will drive the guide vane 11 to move. After the guide vane 11 contacts the agglomerated diamond ore, it can break up the diamond ore until the agglomerated diamond ore is disintegrated into ore particles of suitable size.

[0035] The vertical cross section of the filter frame 7 is a "Z"-shaped broken line structure. By making the vertical cross section of the filter frame 7 a "Z"-shaped broken line structure, the inner wall of the filter frame 7 forms a linear tip, which increases the filtering area of ​​the filter frame 7 and improves the passing efficiency of the mineral particles. At the same time, after the agglomerated diamond ore contacts the filter frame 7, the linear tip of the filter frame 7 can perform a secondary break-up of the agglomerated diamond ore, thereby improving the efficiency of disintegrating the agglomerated diamond ore.

[0036] A U-shaped plate 12 is fixedly connected to the outer circumferential surface of the rotating shaft 8, and a plurality of brush wires 13 are fixedly connected to the surface of the U-shaped plate 12, which are against the inner wall of the filter frame 7. The rotation of the rotating shaft 8 will drive the U-shaped plate 12 to move, and the U-shaped plate 12 will drive the brush wires 13 to slide along the inner wall of the filter frame 7, brushing the inner wall of the filter frame 7 to reduce the adhesion of mineral particles and ensure that the filter frame 7 can filter normally.

[0037] The adjusting plate 15 is fixedly mounted on the outer circumferential surface of the supporting rod 14, both ends of the adjusting plate 15 are against the inner wall of the receiving frame 6, the baffle 16 is fixedly mounted on the inner wall of the receiving frame 6, both ends of the supporting rod 14 are fixedly connected with the extension plate 17, the surface of the extension plate 17 is fixedly connected with the transmission block 18, the outer wall of the receiving frame 6 is fixedly connected with the electric push rod 19, the output end of the electric push rod 19 is fixedly connected with the strip frame 20, the transmission block 18 is against the inner wall of the strip frame 20, when it is necessary to adjust the volume of the diamond ore entering the filter frame 7, the output end of the electric push rod 19 is controlled to move, the output end of the electric push rod 19 will drive the strip frame 20 to move synchronously, and the movement of the strip frame 20 will bring The transmission block 18 moves, and the movement of the transmission block 18 drives the extension plate 17 to move. The movement of the extension plate 17 drives the support rod 14 to rotate, and the support rod 14 drives the adjustment plate 15 to rotate. When the adjustment plate 15 rotates in the direction close to the baffle 16, the distance between the adjustment plate 15 and the baffle 16 becomes smaller. At this time, the volume and amount of diamond ore that can enter the filter frame 7 will become smaller. When the adjustment plate 15 rotates in the direction away from the baffle 16, the distance between the adjustment plate 15 and the baffle 16 becomes larger. At this time, the volume and amount of diamond ore that can enter the filter frame 7 will become larger. Therefore, a suitable speed can be selected according to the ore product of the diamond ore to make the diamond ore enter the filter frame 7.

[0038] The end of the adjustment plate 15 away from the support rod 14 is fixedly connected with a sealing sleeve 36. When the spiral classifier is not in use, the output end of the electric push rod 19 is controlled to move upward, and the adjustment plate 15 will rotate upward. The rotation of the adjustment plate 15 will cause the sealing sleeve 36 to abut against the surface of the baffle 16. The adjustment plate 15, the baffle 16 and the sealing sleeve 36 can cooperate to seal the receiving frame 6 to prevent foreign matter from entering the filter frame 7, which makes it convenient to use the spiral classifier directly and reduces the difficulty of maintenance.

[0039] The piston plate 22 is slidably mounted on the inner wall of the sealing frame 21. The upper surface of the piston plate 22 is fixedly connected with a connecting plate 23. The surface of the connecting plate 23 is fixedly connected with a protrusion 24. The outer circumferential surface of the rotating shaft 8 is fixedly connected with a cam 25. The surface of the cam 25 is provided with a groove 26 adapted to the protrusion 24. The outer circumferential surface of the sealing frame 21 is fixedly connected with a water pipe 27. The inner wall of the water pipe 27 is fixedly connected with a one-way valve. One end of the water pipe 27 is fixedly connected with a water distribution pipe 28. The nozzle 29 is fixedly connected to the surface of the water distribution pipe 28. The vertical section of the nozzle 29 is trapezoidal. The nozzle 29 is inclined to the horizontal plane. The surface of the piston plate 22 is provided with a water inlet hole 30. When the diamond agglomerates are broken up, the water inlet hole 30 is provided. During the mining process, the rotating shaft 8 will drive the cam 25 to rotate, and the cam 25 will drive the protrusion 24 along the inner wall of the groove 26 to slide in the vertical direction. When the protrusion 24 slides downward, the protrusion 24 will drive the connecting plate 23 to move downward. The movement of the connecting plate 23 will drive the piston plate 22 to slide along the inner wall of the sealing frame 21. The sliding of the piston plate 22 will squeeze the water, and the water will enter the water distribution pipe 28 through the water guide pipe 27, and then be discharged by the nozzle 29 in the form of a jet. When the jet contacts the larger diamond ore, it can impact the diamond ore and initially break up the diamond ore. In addition, the water will gradually soak the diamond ore after contacting the diamond ore until the agglomerated diamond ore is disintegrated into a suitable size.

[0040] The piston plate 22 is fixedly connected to a filter cartridge 34 at a position relative to the water inlet hole 30, and the inner wall of the sealing frame 21 is fixedly connected to a perforated plate 35. The perforated plate 35 is slidably sleeved on the outer circumferential surface of the filter cartridge 34. The filter cartridge 34 will filter the water to prevent large-volume mineral particles from clogging the nozzle 29. At the same time, the perforated plate 35 can limit the movement path of the filter cartridge 34, thereby limiting the movement path of the piston plate 22 to prevent the protrusion 24 and the groove 26 from being misaligned and stuck.

[0041] A fixed block 31 is fixedly connected to the lower surface of the piston plate 22, and a flexible pad 32 and a plurality of elastic strips 33 are fixedly connected to the outer circumferential surface of the fixed block 31. The elastic strips 33 are fixedly connected to the flexible pad 32. When the protrusion 24 slides downward, the flexible pad 32 will be tightly attached to the surface of the piston plate 22 due to the resistance of water, thereby blocking the water inlet hole 30. The elastic strips 33 can strengthen the flexible pad 32. When the protrusion 24 slides upward, the flexible pad 32 will bend due to the resistance of water and break away from contact with the piston plate 22, and water can flow into between the piston plate 22 and the sealing frame 21 through the water inlet hole 30.

[0042] The method of using the spiral classifier for diamond beneficiation includes the following steps: S1, pass external water into the water tank 1, and the liquid level will reach and remain at the height of the drain pipe 4; S2, turn on the drive motor 3, put the diamond ore into the receiving frame 6, the ore particles of normal volume will flow directly out of the filter frame 7 with the water flow, the fine ore particles will overflow through the drain pipe 4 with the water, and the coarse particles will be transported upward by the spiral blade 2 to the discharge pipe 5 for discharge; S3, turning on the servo motor 9, the guide plate 11 can break up the agglomerated diamond ore after contacting with the agglomerated diamond ore, and at the same time, the piston plate 22 slides to squeeze the water, and the water enters the water distribution pipe 28 through the water guide pipe 27, and then is discharged by the nozzle 29 in the form of a jet; S4. The distance between the baffle plate 16 and the adjusting plate 15 is adjusted by controlling the electric push rod 19 to extend and retract, thereby adjusting the volume of the diamond ore entering the filter frame 7.

[0043] The overall working principle is that when the diamond ore is graded and selected, the external water source is first continuously introduced into the water tank 1, and the liquid level will reach and be maintained at the height of the drain pipe 4. At this time, the liquid level is between the filter frame 7 and the adjustment plate 15. Then the drive motor 3 is turned on, and the drive motor 3 drives the spiral blade 2 to rotate, and then the diamond ore is put into the receiving frame 6. At this time, the diamond ore will slide into the water in the receiving frame 6 through the gap between the adjustment plate 15 and the baffle 16, and then it will settle in the filter frame 7. At this time, the mineral particles with normal volume will flow out directly from the filter frame 7 with the water flow, and then the fine mineral particles in the mineral particles will overflow through the drain pipe 4 with the water, and the coarse particles will be transported upward by the spiral blade 2 to the discharge pipe 5 for discharge, and the agglomerated diamond ore will remain in the filter frame 7. Then the servo motor 9 is turned on, and the rotation of the output end of the servo motor 9 will drive the rotating shaft 8 to rotate, and the rotation of the rotating shaft 8 will drive the lever 10 to move, and the movement of the lever 10 will drive the guide plate 11 The guide vane 11 moves, and after contacting the agglomerated diamond ore, the guide vane 11 can break up the diamond ore until the agglomerated diamond ore is disintegrated into ore particles of suitable size. The rotation of the guide vane 11 can also drive the water flow to flow along the axial direction of the rotating shaft 8 to form a vortex. The water flow will drive the agglomerated diamond ore to flow, and the agglomerated diamond ore will hit the filter frame 7 due to centrifugal force. By making the vertical cross-section of the filter frame 7 a "Z"-shaped broken line structure, a linear tip is formed on the inner wall of the filter frame 7, which increases the filtration area of ​​the filter frame 7 and improves the passing efficiency of the ore particles. At the same time, after the agglomerated diamond ore contacts the filter frame 7, the linear tip of the filter frame 7 can break up the agglomerated diamond ore for a second time, thereby improving the efficiency of disintegrating the agglomerated diamond ore. The rotation of the rotating shaft 8 will also drive the U-shaped plate 12 to move, and the U-shaped plate 12 will drive the brush wire 13 to slide along the inner wall of the filter frame 7 to brush the inner wall of the filter frame 7, reduce the adhesion of ore particles, and ensure that the filter frame 7 can filter normally.

[0044] In the process of putting in diamond ore, larger agglomerated diamond ore will remain above the adjusting plate 15 and the baffle 16 or be stuck between the adjusting plate 15 and the baffle 16, thereby preventing a large amount of larger agglomerated diamond ore from entering the filter frame 7, causing the instantaneous filtration volume of the filter frame 7 to surge and be blocked. When it is necessary to adjust the volume of diamond ore entering the filter frame 7, the output end of the electric push rod 19 is controlled to move, and the output end of the electric push rod 19 will drive the bar frame 20 to move synchronously. The movement of the bar frame 20 will drive the transmission block 18 to move, and the movement of the transmission block 18 will drive the extension plate 17 to move. The movement of the extension plate 17 will drive the support rod 14 to rotate, and the support rod 14 will drive the adjusting plate 15 to rotate. When the adjusting plate 15 rotates in the direction close to the baffle 16, the adjusting plate 15 and the baffle When the spacing between the plates 16 becomes smaller, the volume and amount of diamond ore that can enter the filter frame 7 will become smaller. When the adjusting plate 15 rotates in the direction away from the baffle 16, the spacing between the adjusting plate 15 and the baffle 16 becomes larger. At this time, the volume and amount of diamond ore that can enter the filter frame 7 will become larger. Therefore, a suitable speed can be selected according to the ore product of the diamond ore to make the diamond ore enter the filter frame 7. When the spiral classifier is not used, the output end of the electric push rod 19 is controlled to move upward, and the adjusting plate 15 will rotate upward. The rotation of the adjusting plate 15 will cause the sealing sleeve 36 to abut against the surface of the baffle 16. The adjusting plate 15, the baffle 16 and the sealing sleeve 36 can cooperate to block the receiving frame 6 to prevent foreign matter from entering the filter frame 7, making it convenient to directly use the spiral classifier in the future and reducing the difficulty of maintenance.

[0045] In the process of breaking up the agglomerated diamond ore, the rotating shaft 8 will drive the cam 25 to rotate, and the cam 25 will drive the protrusion 24 along the inner wall of the groove 26 to slide in the vertical direction. When the protrusion 24 slides downward, the one-way valve in the water pipe 27 opens, and the protrusion 24 will drive the connecting plate 23 to move downward. The movement of the connecting plate 23 will drive the piston plate 22 to slide along the inner wall of the sealing frame 21. The sliding of the piston plate 22 will squeeze the water. At this time, the flexible pad 32 will be tightly attached to the surface of the piston plate 22 due to the resistance of the water, and the water inlet hole 30 will be blocked. The elastic strip 33 can strengthen the flexible pad 32. At the same time, water will enter the water distribution pipe 28 through the water pipe 27, and then be discharged by the nozzle 29 in the form of a jet. When the jet comes into contact with the larger diamond ore, it can impact the diamond ore and initially break the diamond ore. The stone ore is broken up, and the water gradually soaks the diamond ore after contacting the diamond ore until the agglomerated diamond ore is disintegrated to a suitable size. When the protrusion 24 slides upward, the one-way valve in the water conduit 27 is closed, and the piston plate 22 moves upward. At this time, the flexible pad 32 is bent due to the resistance of the water and is out of contact with the piston plate 22. Water can flow into the space between the piston plate 22 and the sealing frame 21 through the water inlet hole 30. In this process, the filter cartridge 34 filters the water to prevent large-volume mineral particles from clogging the nozzle 29. At the same time, the orifice plate 35 can limit the moving path of the filter cartridge 34, thereby limiting the moving path of the piston plate 22, and preventing the protrusion 24 from being misaligned with the groove 26 and getting stuck. At the same time, the orifice plate 35 can also clean the mineral particles attached to the outer circumferential surface of the filter cartridge 34.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A spiral classifier for diamond beneficiation, comprising a water tank (1), characterized in that: The inner wall of the water tank (1) is rotatably connected to a spiral blade (2), the outer wall of the water tank (1) is fixedly equipped with a drive motor (3), the output end of the drive motor (3) is fixedly connected to the spiral blade (2), the outer wall of the water tank (1) is fixedly connected to a drain pipe (4) and a discharge pipe (5), the discharge pipe (5) is higher than the drain pipe (4), and further comprises: A stirring structure disposed on the inner wall of the water tank (1) for breaking up agglomerated diamond ore, the stirring structure comprising a receiving frame (6) fixedly mounted on the inner wall of the water tank (1), a guide plate (11) for stirring the water flow, and a filter frame (7) for limiting the distribution range of agglomerated diamond ore; A pre-screening structure arranged on the inner wall of the receiving frame (6) for preventing large-volume agglomerated diamond ore from affecting the normal operation of the filter frame (7), the pre-screening structure comprising a plurality of support rods (14) rotatably mounted in the receiving frame (6), an adjustment plate (15) for adjusting the size of agglomerated diamonds that can pass through, and a baffle (16); A jet structure is arranged on the inner wall of the water tank (1) and is used to flush large-volume agglomerated diamond ore with the help of a jet. The jet structure comprises a sealing frame (21) fixedly mounted on the inner wall of the water tank (1), a piston plate (22) for pressing water to form a jet, and a nozzle (29) for discharging the jet.

2. A spiral classifier for diamond ore dressing according to claim 1, characterized in that: The filter frame (7) is fixedly connected to the lower surface of the receiving frame (6); a rotating shaft (8) is horizontally rotatably connected inside the filter frame (7); the rotating shaft (8) is rotatably connected to the water tank (1); a servo motor (9) is fixedly connected to the outer wall of the water tank (1); an output end of the servo motor (9) is fixedly connected to the rotating shaft (8); a plurality of levers (10) are fixedly connected to the outer circumferential surface of the rotating shaft (8); and the guide vane (11) is fixedly connected to the lever (10).

3. A spiral classifier for diamond beneficiation according to claim 2, characterized in that: The vertical cross-section of the filter frame (7) is a "Z"-shaped broken line structure.

4. A spiral classifier for diamond beneficiation according to claim 2, characterized in that: A U-shaped plate (12) is fixedly connected to the outer circumferential surface of the rotating shaft (8), and a plurality of brush wires (13) that abut against the inner wall of the filter frame (7) are fixedly connected to the surface of the U-shaped plate (12).

5. The spiral classifier for diamond ore dressing according to claim 2, characterized in that: The adjustment plate (15) is fixedly mounted on the outer circumferential surface of the support rod (14), both ends of the adjustment plate (15) abut against the inner wall of the receiving frame (6), the baffle plate (16) is fixedly mounted on the inner wall of the receiving frame (6), both ends of the support rod (14) are fixedly connected to extension plates (17), the surface of the extension plate (17) is fixedly connected to a transmission block (18), the outer wall of the receiving frame (6) is fixedly connected to an electric push rod (19), the output end of the electric push rod (19) is fixedly connected to a strip frame (20), and the transmission block (18) abuts against the inner wall of the strip frame (20).

6. A spiral classifier for diamond ore dressing according to claim 5, characterized in that: One end of the adjustment plate (15) away from the support rod (14) is fixedly connected to a sealing sleeve (36).

7. The spiral classifier for diamond beneficiation according to claim 5, characterized in that: The piston plate (22) is slidably mounted on the inner wall of the sealing frame (21); a connecting plate (23) is fixedly connected to the upper surface of the piston plate (22); a protrusion (24) is fixedly connected to the surface of the connecting plate (23); a cam (25) is fixedly connected to the outer circumferential surface of the rotating shaft (8); a groove (26) matching the protrusion (24) is provided on the surface of the cam (25); a water guide pipe (27) is fixedly connected to the outer circumferential surface of the sealing frame (21); one end of the water guide pipe (27) is fixedly connected to a water distribution pipe (28); the nozzle pipe (29) is fixedly connected to the surface of the water distribution pipe (28); the vertical cross-section of the nozzle pipe (29) is trapezoidal; the nozzle pipe (29) is inclined to a horizontal plane; and a water inlet hole (30) is provided on the surface of the piston plate (22).

8. The spiral classifier for diamond beneficiation according to claim 7, characterized in that: The piston plate (22) is fixedly connected to a filter cartridge (34) at a position relative to the water inlet hole (30), and the inner wall of the sealing frame (21) is fixedly connected to a perforated plate (35), wherein the perforated plate (35) is slidably sleeved on the outer circumferential surface of the filter cartridge (34).

9. The spiral classifier for diamond beneficiation according to claim 7, characterized in that: A fixing block (31) is fixedly connected to the lower surface of the piston plate (22), a flexible pad (32) and a plurality of elastic strips (33) are fixedly connected to the outer circumferential surface of the fixing block (31), and the elastic strips (33) are fixedly connected to the flexible pad (32).

10. The method for using the spiral classifier for diamond beneficiation according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, introducing water from the outside into the water tank (1), the liquid level will reach and remain at the height of the drain pipe (4); S2, turning on the drive motor (3), placing the diamond ore into the receiving frame (6), the ore particles of normal size will flow directly out of the filter frame (7) along with the water flow, the fine ore particles among the ore particles will overflow through the drainage pipe (4) along with the water, and the coarse particles will be transported upward by the spiral blade (2) to the discharge pipe (5) for discharge; S3, turning on the servo motor (9), the guide plate (11) contacts the agglomerated diamond ore and breaks up the diamond ore, while the piston plate (22) slides and squeezes the water, which enters the water distribution pipe (28) through the water guide pipe (27) and is then discharged from the nozzle (29) in the form of a jet; S4. The distance between the baffle plate (16) and the adjustment plate (15) is adjusted by controlling the electric push rod (19) to extend and retract, thereby adjusting the volume of the diamond ore entering the filter frame (7).

Images