Scraper type four-groove flotation machine and beneficiation method thereof

Abstract

A reagent outlet pipe is arranged in a bent pipe, an input port of the reagent outlet pipe is communicated with a reagent box, an output port of the reagent outlet pipe is slidably connected with an outer cylinder, a needle tube is detachably connected to the outer cylinder and located above the reagent box, and the reagent box is detachably connected with the outer cylinder. A connecting frame is arranged on the outer barrel, a threaded seat is rotationally connected to one end of the connecting frame, the threaded seat is in threaded connection with a threaded barrel, and the threaded barrel is welded to the corresponding bent pipe. Medicament is placed in the medicament box in advance to be stored, when the flotation machine is used, medicament feeding can be achieved by rotating the threaded seat, when medicament feeding is needed, a worker rotates the threaded seat to enable the outer barrel to move towards the medicament outlet pipe, and the medicament in the medicament outlet pipe can flow into the outer barrel and is finally discharged through the needle tube. And by arranging a worker, the workers do not need to sequentially extract and put medicaments, so that the operation of the worker is facilitated, and the efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flotation machines, and in particular to a scraper-type four-trough flotation machine and a mineral processing method thereof. Background Art

[0002] Flotation machine is the abbreviation of flotation concentrator, which refers to the mechanical equipment that completes the flotation process. In the flotation machine, the pulp treated with reagents is stirred and aerated, so that some mineral particles are selectively fixed on the bubbles, float to the surface of the pulp and are scraped out to form foam products, while the rest are retained in the pulp to achieve the purpose of separating minerals. There are many structural forms of flotation machines, and the most commonly used is the mechanical stirring flotation machine.

[0003] During the use of the flotation machine, different reagents need to be added to the ore pulp. The addition of these reagents is mainly done manually. During the entire flotation process, the human operator not only needs to add reagents, but also needs to control the equipment and observe the flotation situation. The staff has many operating steps in the whole process, and the flotation process cannot provide convenience for the staff. Summary of the invention

[0004] One of the purposes of the present application is to provide a scraper-type four-trough flotation machine and a mineral processing method thereof.

[0005] In order to achieve the above purpose, the technical solution adopted in the present application is: a scraper-type four-slot flotation machine, comprising a flotation machine body, a paddle and a material box, the flotation machine is detachably connected with a mounting frame, the mounting frame is detachably connected with a medicine box, the output end of the medicine box is detachably connected with a bent pipe, a medicine outlet pipe is arranged inside the bent pipe, the input port of the medicine outlet pipe is communicated with the medicine box, the output port of the medicine outlet pipe is slidably connected with an outer cylinder, the outer cylinder is detachably connected with a needle tube, a mesh cylinder is arranged at the connection between the outer cylinder and the needle tube, the needle tube is located above the material box, a connecting frame is arranged on the outer cylinder, a threaded seat is rotatably connected to one end of the connecting frame, the threaded seat is threadedly connected to a screw barrel, and the screw barrel is welded to the corresponding bent pipe.

[0006] Preferably, a bracket is welded on the threaded seat, and the bracket is vertically arranged on the threaded seat. The bracket is distributed around the threaded seat, and a pull plate is removably connected to the outer end of the bracket. The pull plate is arranged in a ring shape as a whole, and the outer diameter of the pull plate is the same as the outer diameter of the threaded seat, and the inner diameter of the pull plate is larger than the diameter of the bent pipe.

[0007] Preferably, a limiting plate is sleeved on the bent pipe, and the limiting plate is arranged in a ring shape as a whole. The outer diameter of the limiting plate is larger than the inner diameter of the pull plate, the inner diameter of the limiting plate is the same as the diameter of the bent pipe, the outer diameter of the limiting plate is smaller than the outer diameter of the pull plate, the limiting plate is located in the space between the pull plate and the threaded seat, and the limiting plate is overlapped on the pull plate.

[0008] Preferably, a connecting frame is welded to the limiting plate, the connecting frame is vertically arranged on the limiting plate, the connecting frame is U-shaped as a whole, the two side ends of the connecting frame are connected to the limiting plate, the other end of the connecting frame is annular as a whole, and the annular end of the connecting frame is disassembled and connected to the outer cylinder.

[0009] Preferably, an inner cylinder is arranged on the output end of the medicine outlet tube inside the bent tube, the inner cylinder is cylindrical as a whole, the diameter of the inner cylinder is larger than the diameter of the medicine outlet tube, an inner groove is opened inside the inner cylinder, the inner groove and the medicine outlet tube are interconnected, the inner groove is cylindrical as a whole, the diameter of the inner groove is larger than the diameter of the medicine outlet tube, and the diameter of the inner groove is smaller than the diameter of the inner cylinder.

[0010] Preferably, an extension plate is welded on the inner cylinder, and the extension plate is arranged in a cylindrical shape as a whole. The extension plate is welded on the outer wall of the inner cylinder, the diameter of the extension plate is the same as the diameter of the inner cylinder, the inner cylinder is inserted into the outer cylinder, the inner diameter of the outer cylinder is the same as the diameter of the extension plate, and the outer cylinder is wrapped around the outer circumference of the inner cylinder.

[0011] Preferably, a long tube is detachably connected to the inner tube, the diameter of the long tube is smaller than the diameter of the inner tube, a long groove is provided inside the long tube, and the long groove and the inner groove of the inner tube are interconnected.

[0012] Preferably, a plug is slidably connected inside the long slot of the long tube, a linkage rod is welded on the plug, the diameter of the plug is the same as the diameter of the long slot, and the diameter of the linkage rod is smaller than the diameter of the plug.

[0013] Preferably, one end of the linkage rod is located outside the long slot, a baffle is welded on the linkage rod outside the long slot, a first spring is detachably connected to the baffle, the first spring is sleeved on the outside of the long cylinder, and the other end of the first spring is detachably connected to the inner cylinder.

[0014] In order to achieve the above purpose, another technical solution adopted in the present application is: a ore dressing method of a scraper-type four-slot flotation machine, comprising the following steps:

[0015] S1: By installing a mounting frame on the flotation machine body, the medicine box on the mounting frame can store the medicine to be used, and the needle tube connected to the medicine box can be placed corresponding to the material box. The medicine is placed in the medicine box in advance before use. When using the flotation machine, the staff can rotate the threaded seat according to observation. When the threaded seat rotates, the needle tube can be pulled to move toward the medicine outlet tube position as a whole, and the net tube in the needle tube can push the baffle;

[0016] S2: When the net cylinder pushes the baffle, it will push the baffle as a whole. The baffle is connected to a linkage rod, and the linkage rod is connected to a plug. The plug will move along the long groove into the inner groove. After the plug enters the inner groove, the plug will not block the long groove. The long groove will be connected with the inner groove, and the reagent inside the inner groove will flow into the outer cylinder, and finally be discharged through the needle tube, and the reagent will fall into the slurry.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] The scraper-type four-slot flotation machine and its mineral processing method are characterized in that a mounting frame is installed on a flotation machine body, and the mounting frame can be disassembled and assembled separately. A reagent box is arranged on the mounting frame, and required reagents can be stored in the reagent box in advance. The reagents can be placed in the reagent box before use. When the flotation machine is used, the equipment is started for stirring. When reagents need to be added, the staff can rotate the threaded seat, and the threaded seat can move along the screw barrel. When the threaded seat moves, the limit plate is pulled by the pull plate, and the limit plate finally drives the outer barrel as a whole to move, and the outer barrel as a whole is It will move toward the medicine outlet pipe position, a mesh tube is arranged inside the outer tube, the mesh tube will push the baffle, thereby pushing the baffle to move into the inner groove, when the baffle moves into the inner groove, the plug can move into the inner groove, the long tube will not be blocked, the medicine can flow into the inner part of the outer tube, and finally pass through the mesh tube into the needle tube, and then be discharged into the ore slurry. The mounting frame can be installed with different types of medicine boxes, and different types of medicines can be discharged into the ore slurry at the same time, so there is no need for the staff to extract and put them in one by one, which is convenient for the staff to operate and improves the work efficiency.

[0019] The scraper-type four-slot flotation machine and its mineral processing method are as follows. An inner cylinder is arranged on a medicine outlet pipe, an outer cylinder can be installed on the inner cylinder, the outer cylinder can be sleeved on the inner cylinder for movement, after the connection between the outer cylinder and the inner cylinder is sealed, the medicine will be discharged through the connection when the outer cylinder moves, the net cylinder will push the baffle plate when the outer cylinder moves, the baffle plate will drive the linkage rod to move, the linkage rod will drive the plug to move, the diameter of the linkage rod is smaller than the diameter of the plug, when the plug moves to the inside of the inner slot, the linkage rod is still in the long slot, but will not block the long slot, so as to realize the flow of the medicine, a first spring is connected to the baffle plate, the other part of the first spring is sleeved on the inner cylinder, the linkage rod and the plug will be pushed in the opposite direction by the first spring when they move, so that the linkage rod will not be offset too much, when the net cylinder is away, the linkage rod can drive the plug to enter the long slot again, the connection between the linkage rod and the plug is sloped, so as to avoid the plug being overlapped in the inner slot and unable to move down. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0022] Figure 3 It is a schematic diagram of the structure of the needle tube in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the net cylinder in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the inner cylinder in the present invention.

[0025] Figure 6 It is a schematic structural diagram of the first spring in the present invention.

[0026] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0027] In the figure: 1, flotation body; 2, medicine box; 3, mounting frame; 4, elbow; 5, dial plate; 6, material box; 7, needle tube; 8, limit plate; 9, connecting frame; 10, pull plate; 11, bracket; 12, threaded seat; 13, screw cylinder; 14, medicine outlet pipe; 15, net cylinder; 16, outer cylinder; 17, inner cylinder; 18, long cylinder; 19, long groove; 20, extension plate; 21, inner groove; 22, plug; 23, first spring; 24, linkage rod; 25, baffle. DETAILED DESCRIPTION

[0028] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] like Figures 1 to 7As shown, the present invention provides a scraper-type four-slot flotation machine, comprising a flotation machine body 1, a paddle 5 and a material box 6, a mounting frame 3 is detachably connected to the flotation machine, a medicine box 2 is detachably connected to the mounting frame 3, a bent pipe 4 is detachably connected to the output end of the medicine box 2, a medicine outlet pipe 14 is arranged inside the bent pipe 4, an input port of the medicine outlet pipe 14 is communicated with the medicine box 2, an outer cylinder 16 is slidably connected to the output port of the medicine outlet pipe 14, a needle tube 7 is detachably connected to the outer cylinder 16, a mesh cylinder 15 is arranged at the connection between the outer cylinder 16 and the needle tube 7, the needle tube 7 is located above the material box 6, a connecting frame 9 is arranged on the outer cylinder 16, a threaded seat 12 is rotatably connected to one end of the connecting frame 9, the threaded seat 12 is threadedly connected to the screw barrel 13, and the screw barrel 13 is welded to the corresponding bent pipe 4. The medicine is pre-placed in the medicine box 2 for storage. When the flotation machine is used, the medicine can be released by rotating the threaded seat 12. When the medicine needs to be released, the staff rotates the threaded seat 12 to move the outer tube 16 toward the medicine outlet tube 14, and the medicine in the medicine outlet tube 14 can flow into the outer tube 16 and finally be discharged through the needle tube 7. By setting it up, the staff does not need to draw the medicines one by one for release, which facilitates the staff's operation and improves efficiency.

[0032] The threaded seat 12 is welded with a bracket 11, which is vertically arranged on the threaded seat 12 and distributed around the threaded seat 12. The outer end of the bracket 11 is detachably connected with a pull plate 10, which is arranged in a ring shape as a whole. The outer diameter of the pull plate 10 is the same as the outer diameter of the threaded seat 12, and the inner diameter of the pull plate 10 is larger than the diameter of the elbow 4. The threaded seat 12 can move along the threaded barrel 13 by setting the threaded barrel 13. When moving, the threaded seat 12 can pull the connecting frame 9, thereby realizing the movement of the outer barrel 16.

[0033] The limit plate 8 is sleeved on the bent pipe 4, and the limit plate 8 is arranged in an annular shape as a whole. The outer diameter of the limit plate 8 is larger than the inner diameter of the pull plate 10, and the inner diameter of the limit plate 8 is the same as the diameter of the bent pipe 4. The outer diameter of the limit plate 8 is smaller than the outer diameter of the pull plate 10. The limit plate 8 is located in the space between the pull plate 10 and the threaded seat 12, and the limit plate 8 is overlapped on the pull plate 10. Through the overlap of the limit plate 8 and the pull plate 10, when the pull plate 10 moves following the threaded seat 12, the pull plate 10 can drive the limit plate 8 to move, and the limit plate 8 can pull the connecting frame 9 to move.

[0034] In practice, by installing the mounting frame 3 on the flotation machine body 1, the mounting frame 3 can be disassembled and assembled separately, and a medicine box 2 is provided on the mounting frame 3. The medicine box 2 can store the required medicine in advance, and the medicine can be placed in the medicine box 2 before use. When the flotation machine is used, the equipment is started for stirring. When the medicine needs to be added, the staff can rotate the threaded seat 12, and the threaded seat 12 can move along the screw barrel 13. When the threaded seat 12 moves, the limit plate 8 will be pulled by the pull plate 10, and the limit plate 8 will eventually drive the outer barrel 16 to move as a whole, and the outer barrel 16 will move as a whole toward the position of the medicine outlet pipe 14. When the outer cylinder 16 moves, a net cylinder 15 is arranged inside the outer cylinder 16, and the net cylinder 15 will push the baffle plate 25, thereby pushing the baffle plate 25 to move into the inner groove 21. When the baffle plate 25 moves into the inner groove 21, the plug 22 can move into the inner groove 21, and the long cylinder 18 will not be blocked. The medicine can flow into the inner part of the outer cylinder 16, and finally pass through the net cylinder 15 into the needle tube 7, and then be discharged into the ore slurry. The mounting frame 3 can be installed with different types of medicine boxes 2, and different types of medicines can be discharged into the ore slurry at the same time, so there is no need for the staff to extract and put them in one by one, which is convenient for the staff to operate and improves the work efficiency.

[0035] A connecting frame 9 is welded on the limiting plate 8, and the connecting frame 9 is vertically arranged on the limiting plate 8. The connecting frame 9 is arranged in a U-shape as a whole, and the two ends of the connecting frame 9 are connected to the limiting plate 8. The other end of the connecting frame 9 is arranged in a ring shape as a whole, and the ring end of the connecting frame 9 is detachably connected to the outer cylinder 16. The outer cylinder 16 can be driven by the connecting frame 9, and the outer cylinder 16 can move to the position of the medicine outlet tube 14.

[0036] An inner cylinder 17 is arranged on the output end of the medicine outlet tube 14 inside the curved tube 4. The inner cylinder 17 is arranged in a cylindrical shape as a whole. The diameter of the inner cylinder 17 is larger than the diameter of the medicine outlet tube 14. An inner groove 21 is arranged inside the inner cylinder 17. The inner groove 21 and the medicine outlet tube 14 are mutually connected. The inner groove 21 is arranged in a cylindrical shape as a whole. The diameter of the inner groove 21 is larger than the diameter of the medicine outlet tube 14, and the diameter of the inner groove 21 is smaller than the diameter of the inner cylinder 17. The movement of the plug 22 can be realized by the arrangement of the inner cylinder 17. The plug 22 can move into the inner groove 21 of the inner cylinder 17, so as to no longer block the long groove 19 of the long cylinder 18, thereby realizing the flow of the medicine.

[0037] An extension plate 20 is welded to the inner cylinder 17. The extension plate 20 is cylindrical in shape as a whole. The extension plate 20 is welded to the outer wall of the inner cylinder 17. The diameter of the extension plate 20 is the same as that of the inner cylinder 17. The inner cylinder 17 is inserted into the outer cylinder 16. The inner diameter of the outer cylinder 16 is the same as that of the extension plate 20. The outer cylinder 16 is wrapped around the outer circumference of the inner cylinder 17. The first spring 23 can be restricted by the extension plate 20, and the position of the first spring 23 will not be offset.

[0038] The inner cylinder 17 is detachably connected to a long cylinder 18, the diameter of the long cylinder 18 is smaller than the diameter of the inner cylinder 17, and a long groove 19 is provided inside the long cylinder 18, and the long groove 19 is connected to the inner groove 21 of the inner cylinder 17. The long cylinder 18 can communicate with the inner cylinder 17, and the long cylinder 18 can be closed when the plug 22 moves into the long groove 19 of the long cylinder 18, thereby limiting the flow of the medicine.

[0039] A plug 22 is slidably connected inside the long slot 19 of the long tube 18, and a linkage rod 24 is welded on the plug 22. The diameter of the plug 22 is the same as the diameter of the long slot 19, and the diameter of the linkage rod 24 is smaller than the diameter of the plug 22. The plug 22 can be driven by the linkage rod 24, and the plug 22 can move with the baffle 25.

[0040] One end of the linkage rod 24 is located outside the long slot 19, and a baffle 25 is welded on the linkage rod 24 outside the long slot 19. The baffle 25 is detachably connected with a first spring 23, which is sleeved on the outside of the long cylinder 18, and the other end of the first spring 23 is detachably connected to the inner cylinder 17. The baffle 25 can be pushed in the opposite direction by the first spring 23, and the baffle 25 can be reset by the first spring 23 when it is not pushed by the net cylinder 15, and the plug 22 can be reset.

[0041] In practice, by arranging the inner cylinder 17 on the medicine outlet tube 14, the outer cylinder 16 can be installed on the inner cylinder 17, and the outer cylinder 16 can be sleeved on the inner cylinder 17 for movement. After the connection between the outer cylinder 16 and the inner cylinder 17 is sealed, the medicine will be discharged through the connection when the outer cylinder 16 moves. When the outer cylinder 16 moves, the net cylinder 15 will push the baffle 25, and the baffle 25 will drive the linkage rod 24 to move, and the linkage rod 24 will drive the plug 22 to move. The diameter of the linkage rod 24 is smaller than the diameter of the plug 22. When the plug 22 moves to the inside of the inner groove 21, the linkage rod 24 is still in the long The baffle 25 is connected to the first spring 23, and the other part of the first spring 23 is sleeved on the inner cylinder 17. When the linkage rod 24 and the plug 22 move, they will be pushed in the opposite direction by the first spring 23, so that the displacement position of the linkage rod 24 will not be too large. When the net cylinder 15 moves away, the linkage rod 24 can drive the plug 22 to enter the long slot 19 again. The connection between the linkage rod 24 and the plug 22 is sloped, so as to avoid the plug 22 from overlapping in the inner slot 21 and being unable to move down.

[0042] like Figure 1-7 As shown, a method for beneficiating ore using a scraper-type four-slot flotation machine comprises the following steps:

[0043] S1: By installing the mounting frame 3 on the flotation machine body 1, the medicine box 2 on the mounting frame 3 can store the medicine to be used, and the needle tube 7 connected to the medicine box 2 can be placed corresponding to the material box 6. The medicine is placed in the medicine box 2 in advance before use. When using the flotation machine, the staff can rotate the threaded seat 12 according to observation. When the threaded seat 12 rotates, the needle tube 7 can be pulled to move toward the position of the medicine outlet tube 14 as a whole, and the net tube 15 in the needle tube 7 can push the baffle 25;

[0044] S2: When the net tube 15 pushes the baffle 25, it will push the baffle 25 as a whole. The baffle 25 is connected to the linkage rod 24, and the linkage rod 24 is connected to the plug 22. The plug 22 will move along the long groove 19 into the inner groove 21. After the plug 22 enters the inner groove 21, the plug 22 will not block the long groove 19. The long groove 19 will be interconnected with the inner groove 21. The medicine inside the inner groove 21 will flow into the outer tube 16, and finally be discharged through the needle tube 7, and the medicine will fall into the ore slurry.

[0045] The working principle of the present invention is as follows: by installing a mounting frame 3 on the flotation machine body 1, the mounting frame 3 can be disassembled and assembled separately, a medicine box 2 is provided on the mounting frame 3, and the medicine box 2 can store the required medicine in advance. The medicine can be placed in the medicine box 2 before use. When the flotation machine is used, the equipment is started for stirring. When the medicine needs to be added, the staff can rotate the threaded seat 12, and the threaded seat 12 can move along the screw barrel 13. When the threaded seat 12 moves, it will pull the limit plate 8 through the pull plate 10, and the limit plate 8 will eventually drive the outer barrel 16 to move as a whole, and the outer barrel 16 as a whole will move toward the position of the medicine outlet pipe 14, and a net tube 15 is arranged inside the outer tube 16, and the net tube 15 will push the baffle 25, thereby pushing the baffle 25 to move into the inner groove 21, and when the baffle 25 moves into the inner groove 21, the plug 22 can move into the inner groove 21, and the long tube 18 will not be blocked, and the medicine can flow into the inner part of the outer tube 16, and finally pass through the net tube 15 into the needle tube 7, and then be discharged into the ore pulp. The mounting frame 3 can be installed with different types of medicine boxes 2, and different types of medicines can be discharged into the ore pulp at the same time, so that the staff does not need to draw them one by one. The medicine can be taken out and put in, which is convenient for the staff to operate and improves the work efficiency. By arranging the inner cylinder 17 on the medicine outlet pipe 14, the outer cylinder 16 can be installed on the inner cylinder 17, and the outer cylinder 16 can be sleeved on the inner cylinder 17 for movement. After the connection between the outer cylinder 16 and the inner cylinder 17 is sealed, the medicine will be discharged through the connection when the outer cylinder 16 moves. When the outer cylinder 16 moves, the net cylinder 15 will push the baffle 25, the baffle 25 will drive the linkage rod 24 to move, and the linkage rod 24 will drive the plug 22 to move. The diameter of the linkage rod 24 is smaller than the diameter of the plug 22, and the plug 22 moves to the inside of the inner groove 21. When the linkage rod 24 is moved, the plug 22 will be pushed in the opposite direction by the first spring 23, so that the displacement position of the linkage rod 24 will not be too large. When the net tube 15 is away from the linkage rod 24, the plug 22 can be driven to enter the long groove 19 again. The connection between the linkage rod 24 and the plug 22 is sloped, so as to avoid the plug 22 being overlapped in the inner groove 21 and unable to move down.

[0046] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A scraper-type four-tank flotation machine, comprising a flotation machine body (1), a paddle (5) and a material box (6), characterized in that: The flotation machine is detachably connected with a mounting frame (3), a medicine box (2) is detachably connected with the mounting frame (3), an output end of the medicine box (2) is detachably connected with a bent pipe (4), a medicine outlet pipe (14) is arranged inside the bent pipe (4), an input port of the medicine outlet pipe (14) is communicated with the medicine box (2), an output port of the medicine outlet pipe (14) is slidably connected with an outer cylinder (16), a needle tube (7) is detachably connected with the outer cylinder (16), a mesh cylinder (15) is arranged at the connection between the outer cylinder (16) and the needle tube (7), the needle tube (7) is located above the material box (6), a connecting frame (9) is arranged on the outer cylinder (16), a threaded seat (12) is rotatably connected to one end of the connecting frame (9), the threaded seat (12) is threadedly connected to a screw barrel (13), and the screw barrel (13) is welded to the corresponding bent pipe (4).

2. A scraper-type four-tank flotation machine as claimed in claim 1, characterized in that: A bracket (11) is welded to the threaded seat (12), and the bracket (11) is vertically arranged on the threaded seat (12). The bracket (11) is distributed around the threaded seat (12), and a pull plate (10) is detachably connected to the outer end of the bracket (11). The pull plate (10) is arranged in a ring shape as a whole, and the outer diameter of the pull plate (10) is the same as the outer diameter of the threaded seat (12), and the inner diameter of the pull plate (10) is larger than the diameter of the bent pipe (4).

3. A scraper-type four-tank flotation machine as claimed in claim 1, characterized in that: A limit plate (8) is sleeved on the bent pipe (4), and the limit plate (8) is arranged in a ring shape as a whole. The outer diameter of the limit plate (8) is larger than the inner diameter of the pull plate (10), and the inner diameter of the limit plate (8) is the same as the diameter of the bent pipe (4). The outer diameter of the limit plate (8) is smaller than the outer diameter of the pull plate (10). The limit plate (8) is located in the space between the pull plate (10) and the threaded seat (12), and the limit plate (8) is overlapped on the pull plate (10).

4. A scraper-type four-tank flotation machine as claimed in claim 3, characterized in that: A connecting frame (9) is welded to the limiting plate (8), the connecting frame (9) is vertically arranged on the limiting plate (8), the connecting frame (9) is arranged in a U-shape as a whole, the two side ends of the connecting frame (9) are connected to the limiting plate (8), the other end of the connecting frame (9) is arranged in a ring shape as a whole, and the ring end of the connecting frame (9) is detachably connected to the outer cylinder (16).

5. A scraper-type four-tank flotation machine as claimed in claim 1, characterized in that: An inner cylinder (17) is arranged on the output end of the medicine outlet pipe (14) inside the curved pipe (4); the inner cylinder (17) is arranged in a cylindrical shape as a whole; the diameter of the inner cylinder (17) is larger than the diameter of the medicine outlet pipe (14); an inner groove (21) is arranged inside the inner cylinder (17); the inner groove (21) and the medicine outlet pipe (14) are mutually connected; the inner groove (21) is arranged in a cylindrical shape as a whole; the diameter of the inner groove (21) is larger than the diameter of the medicine outlet pipe (14); and the diameter of the inner groove (21) is smaller than the diameter of the inner cylinder (17).

6. A scraper-type four-tank flotation machine as claimed in claim 5, characterized in that: An extension plate (20) is welded to the inner cylinder (17). The extension plate (20) is cylindrical in shape as a whole. The extension plate (20) is welded to the outer wall of the inner cylinder (17). The diameter of the extension plate (20) is the same as the diameter of the inner cylinder (17). The inner cylinder (17) is inserted into the inner part of the outer cylinder (16). The inner diameter of the outer cylinder (16) is the same as the diameter of the extension plate (20). The outer cylinder (16) is wrapped around the outer circumference of the inner cylinder (17).

7. A scraper-type four-tank flotation machine as claimed in claim 5, characterized in that: The inner cylinder (17) is detachably connected to a long cylinder (18), the diameter of the long cylinder (18) is smaller than the diameter of the inner cylinder (17), a long groove (19) is provided inside the long cylinder (18), and the long groove (19) and the inner groove (21) of the inner cylinder (17) are interconnected.

8. A scraper-type four-tank flotation machine as claimed in claim 7, characterized in that: A plug (22) is slidably connected inside the long groove (19) of the long tube (18), a linkage rod (24) is welded to the plug (22), the diameter of the plug (22) is the same as the diameter of the long groove (19), and the diameter of the linkage rod (24) is smaller than the diameter of the plug (22).

9. A scraper-type four-tank flotation machine as claimed in claim 8, characterized in that: One end of the linkage rod (24) is located outside the long slot (19); a baffle (25) is welded to the linkage rod (24) outside the long slot (19); a first spring (23) is detachably connected to the baffle (25); the first spring (23) is sleeved on the outside of the long tube (18); and the other end of the first spring (23) is detachably connected to the inner tube (17).

10. A method for beneficiating ore using a scraper-type four-slot flotation machine, applied to the flotation machine according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: By installing a mounting frame (3) on a flotation machine body (1), the medicine box (2) on the mounting frame (3) can store the medicine to be used, and the needle tube (7) connected to the medicine box (2) can be placed corresponding to the material box (6). Before use, the medicine is placed in the medicine box (2) in advance. When using the flotation machine, the staff can rotate the threaded seat (12) according to observation. When the threaded seat (12) rotates, the needle tube (7) can be pulled to move toward the position of the medicine outlet tube (14), and the net tube (15) in the needle tube (7) can push the baffle (25); S2: When the net cylinder (15) pushes the baffle (25), the baffle (25) is pushed as a whole. The baffle (25) is connected to the linkage rod (24), and the linkage rod (24) is connected to the plug (22). The plug (22) moves along the long groove (19) into the inner groove (21). After the plug (22) enters the inner groove (21), the plug (22) will not block the long groove (19). The long groove (19) and the inner groove (21) are mutually connected. The medicine inside the inner groove (21) will flow into the outer cylinder (16), and finally be discharged through the needle tube (7), and the medicine will fall into the ore pulp.

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