A type of buoyancy-based mineral processing equipment

Abstract

The invention discloses a flotation mineral separation device for mining, comprising a screening drum, a plurality of support frames are fixedly installed at the bottom of the screening drum, a driving motor is arranged between the support frames, and the driving motor is fixedly installed at the bottom of the screening drum, a pair of fixed pipes are fixedly connected to the side wall of the screening drum, and the fixed through pipes are symmetrically arranged, a collecting frame is installed at the top of the side wall of the screening drum, a drainage pipe is fixedly connected to the bottom of the collecting frame, and a screening drum is arranged inside the screening drum; compared with the prior art, the invention can make the transmission rod move under the action of the driving ring through the rotation of the driving shaft, so that the transmission shaft can swing up and down, the screening drum can cooperate with the internal water flow impact to clean and screen the raw coal blocks, small particles of impurities can float on the water surface under the action of the water flow impact and buoyancy, can enter the inside of the collecting frame along the water flow, can avoid the raw coal blocks from being broken during the screening process as much as possible, and can facilitate subsequent processing and screening.

Description

Technical Field

[0001] The invention relates to the technical field of mining development, in particular to a flotation ore dressing device used in mining. Background Art

[0002] Ore dressing is the process of crushing or grinding the ore according to the physical and chemical properties of different minerals in the ore, and then using gravity separation, flotation, magnetic separation, electrostatic separation and other methods to separate useful minerals from gangue minerals, and to separate various symbiotic (associated) useful minerals from each other as much as possible, remove or reduce harmful impurities, so as to obtain the raw materials needed for smelting or other industries.

[0003] In the coal industry, raw coal is inevitably mixed with impurities during its generation, mining and transportation; and as mining progresses, the quality of raw coal becomes worse and worse. Some of the internal impurities can be removed by water flow, but the existing mineral processing equipment has low mineral processing efficiency during operation. For this reason, we propose a flotation mineral processing equipment for mine development to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a flotation ore dressing device for mining to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flotation beneficiation equipment for mining, comprising a screening cylinder, a plurality of support frames are fixedly installed at the bottom of the screening cylinder, a driving motor is arranged between the support frames, and the driving motor is fixedly installed at the bottom of the screening cylinder, a pair of fixed pipes are fixedly connected to the side wall of the screening cylinder, and the fixed through pipes are symmetrically arranged, a collecting frame is installed at the top of the side wall of the screening cylinder, a drainage pipe is fixedly connected to the bottom of the collecting frame, and a screening cylinder is arranged inside the screening cylinder;

[0006] A plurality of sieve holes are provided on the side wall of the screening drum, a sieve plate is fixedly connected to the bottom of the screening drum, a fixed base is fixedly installed on the surface of the screening drum, a driving shaft is rotatably provided on the surface of the fixed base, and the driving shaft is fixedly installed on the output end of the driving motor. When the coal mine needs to be screened for impurities, the crushed raw coal is poured into the screening drum, and the screening drum can be installed on the limiting rod under the action of external equipment. With the action of the driving motor, the screening drum can swing up and down, and the impurities in the raw coal can be screened out with the action of the water flow, which is convenient for subsequent processing.

[0007] Preferably, a connecting cylinder is fixedly connected to the bottom of the inner wall of the screening cylinder, a limiting shaft is fixedly connected inside the connecting cylinder, a limiting hole is provided inside the limiting shaft, and a connecting shaft is fixedly connected to the top of the connecting cylinder, and the connecting shaft is made of metal;

[0008] A plurality of arc plates are fixedly connected between the connecting cylinder and the limiting shaft, the arc plates are elastic, a movable groove is opened on the surface of the connecting cylinder, a movable ring is movably provided inside the movable groove, and an external device can move the screening cylinder by clamping on the connecting shaft.

[0009] Preferably, a counterweight ball is fixedly connected to the surface of the arc plate, an annular shaft is fixedly connected between the counterweight balls, a metal block is fixedly connected inside the counterweight ball, a return spring is fixedly connected to the bottom of the counterweight ball, an air pressure block is fixedly connected to the bottom of the return spring, and a cavity is opened inside the air pressure block;

[0010] A pair of straight rods are fixedly connected to the side wall of the air pressure block, and a driving plate is fixedly connected to one end of the straight rod. The cross-section of the driving plate is "U"-shaped, and the driving plate is magnetic. The position of the driving plate corresponds to the position of the movable groove. Through the action of inertia, the counterweight ball can drive the arc plate to deform, which can drive the air pressure block to move and cause the driving plate to move.

[0011] Preferably, a plurality of auxiliary stirring plates are fixedly connected to the surface of the movable ring, the auxiliary stirring plates are arc-shaped and elastic, and are arranged in a ring array on the surface of the movable ring. The auxiliary stirring plates can be deformed under the action of inertia, and can push the raw coal blocks inside, thereby increasing the range of movement of the raw coal in the water, and can remove various impurities attached to the surface of the raw coal blocks, avoiding the situation of poor cleaning effect;

[0012] A plurality of magnetic blocks are fixedly connected to the inner wall of the movable ring. The magnetic blocks are movably arranged inside the movable groove. The magnetic blocks and the driving plate have attractive magnetism. The driving plate can drive the movable ring to move up and down under the magnetic effect, and can stir the internal water flow, thereby enhancing the cleaning and screening effect on the raw coal and avoiding the situation in which the raw coal is piled up and the screening efficiency is low.

[0013] Preferably, a driving ring is fixedly connected to the surface of the driving shaft, the driving ring is arranged obliquely, a transmission shaft is movably sleeved on the driving shaft, a plurality of transmission rods are fixedly connected to the bottom of the transmission shaft, the transmission rods are arranged obliquely, and the transmission rods are made of metal;

[0014] A plurality of movable rods are fixedly connected to the surface of the transmission shaft, and the movable rods are in an "L" shape. A plurality of sleeve rods are fixedly connected to the surface of the fixed base. The movable rods are movably arranged inside the sleeve rods. A compression spring is fixedly connected to the bottom of the movable rods. By rotating the driving shaft, the transmission rod can move under the action of the driving ring, so that the transmission shaft can swing up and down. The screening drum can cooperate with the internal water flow impact to clean and screen the raw coal blocks. Small particles of impurities can float on the water surface under the action of water flow impact and buoyancy, and can enter the collecting rack along the water flow, so that the raw coal blocks can be avoided from being broken during the screening process as much as possible, which is convenient for subsequent processing and screening.

[0015] Preferably, a metal ring is fixedly connected to the surface of the driving shaft, and a compression tube is fixedly connected to the bottom of the metal ring, the compression tube is elastic, a limiting rod is fixedly connected to the surface of the driving shaft, a pair of limiting plates are fixedly connected to the surface of the limiting rod, and the limiting plates are symmetrically arranged, the limiting rod is movably inserted inside the limiting shaft, the limiting plates can play a limiting role, and can make the screening drum move with the driving shaft, thereby screening the coal mine.

[0016] Preferably, a plurality of extrusion shafts are provided on the outside of the fixed base, an extrusion cavity is opened inside the extrusion shaft, the extrusion shafts are arranged in a ring array on the outside of the fixed base, a plurality of expansion tubes are fixedly connected between the prime extrusion shafts, the expansion tubes and the extrusion shafts are interconnected, and a friction block is fixedly connected on the surface of the expansion tube. The surface of the extrusion shaft can be deformed under the action of the screening cylinder, so that the internal gas can be transported to the inside of the expansion tube, and the friction block on the surface of the expansion tube can rub and squeeze each other with the bottom of the screening cylinder to avoid blockage of the screen plate due to long-term use, thereby ensuring normal drainage of the equipment.

[0017] Preferably, a fixing ring is fixedly connected to the inner wall of the collecting frame, a plurality of sieve rings are fixedly connected between the fixing rings, a plurality of extrusion rings are fixedly connected between the sieve rings, the extrusion rings are elastic, an elastic plate is fixedly connected to one side of the fixing ring, a clamping ring is fixedly connected to one side of the elastic plate, and the clamping ring is clamped on the inner wall of the collecting frame, a floating ring is provided between the elastic plate and the clamping ring, and the floating ring can move under the action of buoyancy, so that the extrusion ring is squeezed, which can reduce the clogging of the sieve rings, avoid the clogging of the sieve rings leading to the separation efficiency of the equipment, and ensure the mineral processing efficiency of the equipment.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can make the transmission rod move under the action of the driving ring by rotating the driving shaft, so that the transmission shaft can swing up and down, and the screening cylinder can cooperate with the internal water flow impact to clean and screen the raw coal blocks. Small particles of impurities can float on the water surface under the impact of the water flow and the buoyancy, and can enter the inside of the collecting frame along the water flow, which can avoid the raw coal blocks from being broken during the screening process as much as possible, and can facilitate subsequent processing and screening;

[0020] 2. The present invention can make the weighted ball drive the arc plate to deform under the action of inertia, and can drive the air pressure block to move. The driving plate can drive the movable ring to move up and down under the action of magnetism, and can stir the internal water flow, thereby enhancing the cleaning and screening effect of the raw coal, and avoiding the situation that the raw coal is piled up and causes low screening efficiency;

[0021] 3. The auxiliary stirring plate of the present invention can be deformed under the action of inertia, so as to push the raw coal block inside, thereby increasing the range of movement of the raw coal in the water, and can remove various impurities attached to the surface of the raw coal block, thus avoiding the situation of poor cleaning effect;

[0022] 4. The present invention enables the surface of the extrusion shaft to deform under the action of the screening drum, so that the internal gas can be transported to the inside of the expansion tube. The friction block on the surface of the expansion tube can rub and squeeze with the bottom of the screening drum, thereby avoiding the clogging of the screen plate due to long-term use, and ensuring the normal drainage of the equipment;

[0023] 5. The present invention enables the floating ring to move under the action of buoyancy, so that the extrusion ring is squeezed, which can reduce the clogging of the screen ring and avoid the clogging of the screen ring that leads to the separation efficiency of the equipment, thereby ensuring the mineral processing efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the collecting rack of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the screening cylinder of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the screening cylinder of the present invention;

[0028] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram in the middle;

[0029] Figure 6 This is a schematic diagram of the structure of the curved plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the fixed base structure of the present invention;

[0031] In the figure: 1. screening cylinder; 2. collecting frame; 3. screening cylinder; 4. movable ring; 5. fixed base; 11. supporting frame; 21. drainage pipe; 22. fixed ring; 23. screening ring; 231. extrusion ring; 24. elastic plate; 25. floating ring; 31. connecting cylinder; 311. movable groove; 32. connecting shaft; 33. limiting shaft; 34. arc plate; 341. counterweight ball; 35. annular shaft; 36. reset spring; 37. air pressure block; 38. driving plate; 41. auxiliary stirring plate; 42. magnetic block; 51. compression tube; 52. extrusion shaft; 521. expansion tube; 53. movable rod; 54. transmission shaft; 541. transmission rod; 55. limiting rod; 56. driving shaft; 561. driving ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-7 The present invention provides a technical solution: a flotation beneficiation device for mining, comprising a screening drum 1, a plurality of support frames 11 are fixedly installed at the bottom of the screening drum 1, a driving motor is arranged between the support frames 11, and the driving motor is fixedly installed at the bottom of the screening drum 1, a pair of fixed pipes are fixedly connected to the side wall of the screening drum 1, and the fixed through pipes are symmetrically arranged, a collecting frame 2 is installed at the top of the side wall of the screening drum 1, a drainage pipe 21 is fixedly connected to the bottom of the collecting frame 2, and a screening drum 3 is arranged inside the screening drum 1;

[0034] A plurality of sieve holes are provided on the side wall of the screening drum 3, a sieve plate is fixedly connected to the bottom of the screening drum 3, a fixed base 5 is fixedly installed on the surface of the screening drum 1, a driving shaft 56 is rotatably provided on the surface of the fixed base 5, and the driving shaft 56 is fixedly installed on the output end of the driving motor. When it is necessary to remove impurities from the coal mine, the crushed raw coal is poured into the screening drum 3, and the screening drum 3 can be installed on the limiting rod 55 under the action of external equipment. With the action of the driving motor, the screening drum 3 can swing up and down, and the impurities in the raw coal can be screened out with the action of the water flow, which is convenient for subsequent processing.

[0035] A connecting cylinder 31 is fixedly connected to the bottom of the inner wall of the screening cylinder 3, a limiting shaft 33 is fixedly connected inside the connecting cylinder 31, a limiting hole is provided inside the limiting shaft 33, and a connecting shaft 32 is fixedly connected to the top of the connecting cylinder 31, and the connecting shaft 32 is made of metal;

[0036] A plurality of arc plates 34 are fixedly connected between the connecting cylinder 31 and the limiting shaft 33 . The arc plates 34 are elastic. A movable groove 311 is provided on the surface of the connecting cylinder 31 . A movable ring 4 is movably provided inside the movable groove 311 . External equipment can move the screening cylinder 3 by clamping it on the connecting shaft 32 .

[0037] A counterweight ball 341 is fixedly connected to the surface of the arc plate 34, a ring shaft 35 is fixedly connected between the counterweight balls 341, a metal block is fixedly connected inside the counterweight balls 341, a return spring 36 is fixedly connected to the bottom of the counterweight ball 341, a gas pressure block 37 is fixedly connected to the bottom of the return spring 36, and a cavity is opened inside the gas pressure block 37;

[0038] A pair of straight rods are fixedly connected to the side wall of the air pressure block 37, and a driving plate 38 is fixedly connected to one end of the straight rod. The cross-section of the driving plate 38 is "U"-shaped, and the driving plate 38 is magnetic. The position of the driving plate 38 corresponds to the position of the movable groove 311. Through the action of inertia, the counterweight ball 341 can drive the arc plate 34 to deform, which can drive the air pressure block 37 to move and cause the driving plate 38 to move.

[0039] A plurality of auxiliary stirring plates 41 are fixedly connected to the surface of the movable ring 4. The auxiliary stirring plates 41 are arc-shaped and elastic. The auxiliary stirring plates 41 are arranged in a ring array on the surface of the movable ring 4. The auxiliary stirring plates 41 can be deformed under the action of inertia, and can push the raw coal blocks inside, thereby increasing the range of movement of the raw coal in the water, and can remove various impurities attached to the surface of the raw coal blocks;

[0040] A plurality of magnetic blocks 42 are fixedly connected to the inner wall of the movable ring 4. The magnetic blocks 42 are movably arranged inside the movable groove 311. The magnetic blocks 42 and the driving plate 38 have attractive magnetism. The driving plate 38 can drive the movable ring 4 to move up and down under the magnetic effect, and can stir the internal water flow, thereby enhancing the cleaning and screening effect on the raw coal, and avoiding the situation in which the raw coal is piled up and the screening efficiency is low.

[0041] A driving ring 561 is fixedly connected to the surface of the driving shaft 56, and the driving ring 561 is arranged in an inclined manner. A transmission shaft 54 ​​is movably sleeved on the driving shaft 56, and a plurality of transmission rods 541 are fixedly connected to the bottom of the transmission shaft 54, and the transmission rods 541 are arranged in an inclined manner and are made of metal.

[0042] A plurality of movable rods 53 are fixedly connected to the surface of the transmission shaft 54, and the movable rods 53 are in an "L" shape. A plurality of sleeve rods are fixedly connected to the surface of the fixed base 5, and the movable rods 53 are movably arranged inside the sleeve rods. A compression spring is fixedly connected to the bottom of the movable rods 53, and the driving shaft 56 rotates, so that the transmission rod 541 can move under the action of the driving ring 561, so that the transmission shaft 54 ​​can swing up and down, and the screening drum 3 can cooperate with the internal water flow impact to clean and screen the raw coal blocks.

[0043] A metal ring is fixedly connected to the surface of the driving shaft 56, and a compression tube 51 is fixedly connected to the bottom of the metal ring. The compression tube 51 is elastic. A limiting rod 55 is fixedly connected to the surface of the driving shaft 56. A pair of limiting plates are fixedly connected to the surface of the limiting rod 55, and the limiting plates are symmetrically arranged. The limiting rod 55 is movably inserted in the limiting shaft 33. The limiting plates can play a limiting role, and can enable the screening drum 3 to move with the driving shaft 56, thereby screening the coal mine.

[0044] A plurality of extrusion shafts 52 are provided on the outside of the fixed base 5, an extrusion cavity is opened inside the extrusion shaft 52, and the extrusion shafts 52 are arranged in a ring array on the outside of the fixed base 5. A plurality of expansion tubes 521 are fixedly connected between the prime extrusion shafts 52, the expansion tubes 521 and the extrusion shafts 52 are interconnected, and a friction block is fixedly connected on the surface of the expansion tube 521. The surface of the extrusion shaft 52 can be deformed under the action of the screening cylinder 3, so that the internal gas can be transported to the inside of the expansion tube 521, and the friction block on the surface of the expansion tube 521 can rub and extrude each other with the bottom of the screening cylinder 3 to avoid blockage of the screen plate due to long-term use.

[0045] A fixing ring 22 is fixedly connected to the inner wall of the collecting frame 2, a plurality of sieve rings 23 are fixedly connected between the fixing rings 22, a plurality of extrusion rings 231 are fixedly connected between the sieve rings 23, the extrusion rings 231 are elastic, an elastic plate 24 is fixedly connected to one side of the fixing ring 22, a clamping ring is fixedly connected to one side of the elastic plate 24, and the clamping ring is clamped on the inner wall of the collecting frame 2, a floating ring 25 is provided between the elastic plate 24 and the clamping ring, and the floating ring 25 can move under the action of buoyancy, so that the extrusion ring 231 is squeezed, which can reduce the blockage of the sieve ring 23.

[0046] Working principle: first, when the coal mine needs to be screened and removed, the raw coal after crushing is poured into the screening drum 3. Under the action of external equipment, the screening drum 3 can be installed on the limit rod 55. With the action of the driving motor, the screening drum 3 can swing up and down, and the impurities in the raw coal can be screened out with the action of the water flow, which is convenient for subsequent processing. As the driving shaft 56 rotates, the transmission rod 541 can move under the action of the driving ring 561, so that the transmission shaft 54 ​​can swing up and down. The screening drum 3 can cooperate with the internal water flow impact to clean and screen the raw coal blocks. Small particles of impurities can float on the water surface under the action of the water flow impact and buoyancy, and can enter the collection rack 2 along the water flow, which can avoid the raw coal blocks from breaking during the screening process as much as possible, and can facilitate subsequent processing and screening.

[0047] Then, under the action of inertia, the weighted ball 341 can drive the arc plate 34 to deform, and can drive the air pressure block 37 to move. The driving plate 38 can drive the movable ring 4 to move up and down under the action of magnetism, and can stir the internal water flow, so as to enhance the cleaning and screening effect of the raw coal inside, and avoid the situation that the raw coal is piled up in one piece and the screening efficiency is low. The auxiliary stirring plate 41 can be deformed under the action of inertia, and can push the internal raw coal block, so as to increase the range of movement of the raw coal in the water, and can remove various impurities attached to the surface of the raw coal block, and avoid the situation of poor cleaning effect. The surface of the extrusion shaft 52 can be deformed under the action of the screening cylinder 3, and the internal gas can be transported to the inside of the expansion tube 521. The friction block on the surface of the expansion tube 521 can rub and squeeze with the bottom of the screening cylinder 3 to avoid the blockage of the screen plate due to long-term use, and can ensure the normal drainage of the equipment.

[0048] Finally, the water flows into the collecting frame 2 and is collected. The floating ring 25 can move under the action of buoyancy, so that the squeezing ring 231 is squeezed, which can reduce the blockage of the screen ring 23, avoid the blockage of the screen ring 23 and cause the separation efficiency of the equipment, and ensure the mineral processing efficiency of the equipment.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flotation separation device for mining, comprising a screening drum (1), characterized in that: A plurality of support frames (11) are fixedly mounted on the bottom of the screening cylinder (1), a driving motor is arranged between the support frames (11), and the driving motor is fixedly mounted on the bottom of the screening cylinder (1), a pair of fixed pipes are fixedly connected to the side wall of the screening cylinder (1), and the fixed through-pipes are symmetrically arranged, a collecting frame (2) is mounted on the top of the side wall of the screening cylinder (1), a drainage pipe (21) is fixedly connected to the bottom of the collecting frame (2), and a screening cylinder (3) is arranged inside the screening cylinder (1); The side wall of the screening cylinder (3) is provided with a plurality of screening holes, the bottom of the screening cylinder (3) is fixedly connected with a screening plate, a fixed base (5) is fixedly mounted on the surface of the screening cylinder (1), a driving shaft (56) is rotatably mounted on the surface of the fixed base (5), and the driving shaft (56) is fixedly mounted on the output end of the driving motor; A driving ring (561) is fixedly connected to the surface of the driving shaft (56), and the driving ring (561) is arranged in an inclined manner. A transmission shaft (54) is movably sleeved on the driving shaft (56), and a plurality of transmission rods (541) are fixedly connected to the bottom of the transmission shaft (54), and the transmission rods (541) are arranged in an inclined manner and are made of metal; A plurality of movable rods (53) are fixedly connected to the surface of the transmission shaft (54), and the movable rods (53) are in an "L" shape. A plurality of sleeve rods are fixedly connected to the surface of the fixed base (5), and the movable rods (53) are movably arranged inside the sleeve rods. A compression spring is fixedly connected to the bottom of the movable rod (53); A metal ring is fixedly connected to the surface of the driving shaft (56), and a compression tube (51) is fixedly connected to the bottom of the metal ring, and the compression tube (51) is elastic. A limiting rod (55) is fixedly connected to the surface of the driving shaft (56), and a pair of limiting plates are fixedly connected to the surface of the limiting rod (55), and the limiting plates are symmetrically arranged. The limiting rod (55) is movably inserted inside the limiting shaft (33); A plurality of extrusion shafts (52) are arranged outside the fixed base (5), an extrusion cavity is opened inside the extrusion shafts (52), the extrusion shafts (52) are arranged in a ring array outside the fixed base (5), a plurality of expansion tubes (521) are fixedly connected between the prime extrusion shafts (52), the expansion tubes (521) and the extrusion shafts (52) are interconnected, and a friction block is fixedly connected to the surface of the expansion tubes (521); A fixing ring (22) is fixedly connected to the inner wall of the collecting frame (2), a plurality of sieve rings (23) are fixedly connected between the fixing rings (22), a plurality of extrusion rings (231) are fixedly connected between the sieve rings (23), and the extrusion rings (231) are elastic. An elastic plate (24) is fixedly connected to one side of the fixing ring (22), a clamping ring is fixedly connected to one side of the elastic plate (24), and the clamping ring is clamped to the inner wall of the collecting frame (2), and a floating ring (25) is provided between the elastic plate (24) and the clamping ring.

2. The flotation mineral separation equipment for mining according to claim 1, characterized in that: The bottom of the inner wall of the screening cylinder (3) is fixedly connected with a connecting cylinder (31), a limiting shaft (33) is fixedly connected inside the connecting cylinder (31), a limiting hole is provided inside the limiting shaft (33), and the top of the connecting cylinder (31) is fixedly connected with a connecting shaft (32), and the connecting shaft (32) is made of metal; A plurality of arc-shaped plates (34) are fixedly connected between the connecting tube (31) and the limiting shaft (33); the arc-shaped plates (34) are elastic; a movable groove (311) is provided on the surface of the connecting tube (31); a movable ring (4) is movably provided inside the movable groove (311).

3. The flotation separation equipment for mining according to claim 2 is characterized by: A counterweight ball (341) is fixedly connected to the surface of the arc plate (34), an annular shaft (35) is fixedly connected between the counterweight balls (341), a metal block is fixedly connected inside the counterweight ball (341), a return spring (36) is fixedly connected to the bottom of the counterweight ball (341), an air pressure block (37) is fixedly connected to the bottom of the return spring (36), and a cavity is opened inside the air pressure block (37); A pair of straight rods are fixedly connected to the side wall of the air pressure block (37), and a driving plate (38) is fixedly connected to one end of the straight rod. The driving plate (38) has a "U"-shaped cross section and is magnetic. The position of the driving plate (38) corresponds to the position of the movable groove (311).

4. The flotation separation equipment for mining according to claim 2 is characterized by: A plurality of auxiliary stirring plates (41) are fixedly connected to the surface of the movable ring (4); the auxiliary stirring plates (41) are arc-shaped and elastic; and the auxiliary stirring plates (41) are arranged in a ring array on the surface of the movable ring (4); A plurality of magnetic blocks (42) are fixedly connected to the inner wall of the movable ring (4), and the magnetic blocks (42) are movably arranged inside the movable groove (311). The magnetic blocks (42) and the driving plate (38) have mutually attractive magnetic properties.

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