Hydraulic fluidized bed flotation machine

By designing a hydraulic fluidized bed flotation machine, adding slurry in batches and using gas injection, agitation and flow diversion mechanisms, the problem of low flotation efficiency due to large amounts of slurry is solved, and efficient mineral separation and resource recovery are achieved.

CN120094754APending Publication Date: 2025-06-06JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD
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Patent Information

Application Number
CN202510516787.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

During the flotation process of mines, the large amount of ore slurry leads to low flotation efficiency, and multiple cycles are required to fully combine with the bubbles, reducing the flotation efficiency and increasing energy consumption and operating costs.

Method used

A hydraulic fluidized bed flotation machine is designed to form a suitable fluidized bed environment by adding slurry in batches, using gas injection mechanism, agitating mechanism and flow guide mechanism, and promoting the full combination of slurry and bubbles.

Benefits of technology

It improves flotation efficiency, reduces energy consumption and operating costs, and realizes the recycling of excess liquid through the reflow mechanism, optimizing the entire flotation process.

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Abstract

The invention provides a hydraulic fluidized bed flotation machine which comprises a flotation box, a top plate, a rear side plate, a discharging pipe, a feeding pipe, a feeding frame, an air injection mechanism, a driving assembly and a feeding control mechanism, the top plate and the rear side plate are connected to the top of the flotation box, the discharging pipe communicates with the middle of the bottom of the flotation box, the feeding frame is connected to the flotation box, the feeding pipe communicates with the feeding frame, and the air injection mechanism communicates with the driving assembly. A gas injection mechanism used for injecting gas into the flotation box is arranged on the top plate, a driving assembly is arranged between the rear side plate and the gas injection mechanism, and a feeding control mechanism used for controlling discharging is arranged between the gas injection mechanism and the feeding pipe. In the process of carrying out flotation treatment on the ore pulp, adding work of the flotation ore pulp can be carried out in batches, the amount of the ore pulp added at a time is small, comprehensive flotation treatment can be conveniently carried out on the ore pulp, the flotation efficiency is guaranteed, and energy consumption and operation cost are also reduced.
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Description

Technical Field

[0001] The invention relates to a flotation machine, in particular to a hydraulic fluidized bed flotation machine. Background Art

[0002] The hydraulic fluidized bed flotation machine is an advanced mineral processing equipment, mainly used for the separation of fine or micro-fine materials. It combines hydraulic fluidized bed technology and flotation technology, and achieves the selective separation of mineral particles by adjusting the water flow rate and the generation of bubbles. This technology has broad application prospects in the fields of coal washing, non-ferrous metal mines and non-metallic minerals.

[0003] At present, in the process of mineral screening in metal mines, water medium flotation technology is generally used to separate valuable minerals. During the flotation operation, the slurry is usually directly transported to the inside of the flotation machine, and then gas is injected into the flotation machine. The gas forms bubbles to float out the target minerals. However, in actual operation, due to the huge amount of slurry, a large amount of slurry is directly added to the flotation machine. During the flotation process, it is difficult to fully float the slurry. Some slurries need to undergo multiple cycles to fully combine with the foam, which not only reduces the flotation efficiency, but also increases energy consumption and operating costs. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a hydraulic fluidized bed flotation machine.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a hydraulic fluidized bed flotation machine, which includes a flotation box, a top plate, a rear side plate, a discharge pipe, a feed pipe, a feed frame, an injection mechanism, a drive assembly and a control feeding mechanism. The top of the flotation box is connected with the top plate and the rear side plate, the middle of the bottom of the flotation box is connected with a discharge pipe, the flotation box is connected with a feed frame, the feed frame is connected with a feed pipe, the top plate is provided with a gas injection mechanism for injecting gas into the flotation box, a drive assembly is provided between the rear side plate and the gas injection mechanism, and a control feeding mechanism for controlling the discharge of materials is provided between the gas injection mechanism and the feed pipe.

[0006] As a preferred scheme of the present invention, the gas injection mechanism includes an upper mounting sleeve, a rotating sleeve, an injection pipe, a lower mounting sleeve, an air outlet valve and a one-way air inlet pipe, the upper mounting sleeve is connected to the top plate, the bottom of the upper mounting sleeve extends vertically downward into the flotation box, and the bottom of the upper mounting sleeve is connected to the lower mounting sleeve, the feeding pipe is communicated with the interior of the lower mounting sleeve, a discharge port is provided at the bottom of the lower mounting sleeve, the rotating sleeve is rotatably connected to the upper mounting sleeve and the lower mounting sleeve, the top of the rotating sleeve extends upwardly out of the top of the upper mounting sleeve, an injection pipe is rotatably arranged in the rotating sleeve, the top of the injection pipe extends out of the top of the rotating sleeve, the top of the injection pipe is fixedly connected to the upper mounting sleeve, the lower part of the injection pipe passes downward through the bottom of the lower mounting sleeve, a plurality of air outlet valves are evenly installed at the lower part of the injection pipe along the circumferential direction, and the lower mounting sleeve is connected with a one-way air inlet pipe.

[0007] As a preferred solution of the present invention, the driving assembly includes a driving motor and a belt transmission group, the driving motor is installed on the rear side plate, and the belt transmission group is installed between the output shaft of the driving motor and the top end of the rotating sleeve.

[0008] As a preferred embodiment of the present invention, the hydraulic fluidized bed flotation machine also includes a stirring mechanism, which includes an impeller and turbine blades. The bottom of the rotating sleeve is connected to the impeller, and a plurality of through grooves are evenly spaced on the bottom plate of the impeller. A plurality of turbine blades are evenly spaced and connected to the bottom of the impeller.

[0009] As a preferred embodiment of the present invention, the hydraulic fluidized bed flotation machine also includes a guide mechanism, which includes a guide frame and a guide plate. The guide frame is sleeved on the outer wall of the lower mounting sleeve and close to the bottom of the lower mounting sleeve. The bottom of the guide frame is open. A plurality of guide plates are evenly spaced and connected along the circumferential inner wall of the guide frame and located on the outer side of the impeller. The guide plates are used to guide the flow of slurry in the flotation machine.

[0010] As a preferred scheme of the present invention, the feed control mechanism includes a feed one-way valve, a baffle plate, a floating plate, an air intake one-way valve and a pressure valve. A feed one-way valve is installed in the feeding pipe. The baffle plate is fixedly installed at the discharge port at the bottom of the lower mounting sleeve. The rotating sleeve passes through the baffle plate and rotates and seals with the baffle plate. Pressure valves are evenly spaced on the baffle plate. The upper part of the lower mounting sleeve slides and is sealed with a floating plate. A reciprocating threaded groove is provided on the rotating sleeve. The floating plate is sleeved on the rotating sleeve and threadedly cooperates with the reciprocating threaded groove on the rotating sleeve. A plurality of air intake one-way valves are evenly spaced on the floating plate. The bottom of the one-way air intake pipe is located above the floating plate.

[0011] As a preferred embodiment of the present invention, the hydraulic fluidized bed flotation machine also includes a pushing mechanism, which includes a transmission rod, a belt drive group, a pushing plate and a servo motor. Transmission rods are rotatably connected on both sides of the flotation box and located on the upper part of the lower mounting sleeve. A group of belt drive groups are installed on both sides of the two transmission rods. A plurality of pushing plates are evenly spaced and connected between the two transmission belts of each belt drive group. The transmission rod rotates to drive the belt drive group to rotate. A servo motor is installed on the flotation box, and the output shaft of the servo motor is connected to one of the transmission rods.

[0012] As a preferred embodiment of the present invention, the hydraulic fluidized bed flotation machine also includes a reflux mechanism, which includes a reflux pipe, a collecting frame, a reflux frame, a filter and a connecting pipe. The flotation box is connected to the collecting frame, the bottom of the collecting frame is connected to the reflux frame, the bottom of the reflux frame is connected to the connecting pipe, the connecting pipe and the lower mounting sleeve are connected by a reflux pipe, and the top of the reflux frame is connected to the filter; the collecting frame collects the bubbles pushed out by the pushing plate.

[0013] As a preferred embodiment of the present invention, the hydraulic fluidized bed flotation machine also includes an air outlet pipe, an air inlet joint and a transmission pipe, one end of the transmission pipe passes through the flotation box and extends into the bottom of the flotation box, and a plurality of air outlet pipes are evenly spaced and connected to the extension end of the transmission pipe, and the other end of the transmission pipe is connected to the air inlet joint outside the flotation box.

[0014] As a preferred solution of the present invention, the hydraulic fluidized bed flotation machine further comprises a partition screen, and the top of the feeding frame is connected with the partition screen.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the process of flotation treatment of ore pulp, the present invention can add flotation ore pulp in batches, and the amount of ore pulp added at one time is small, which is convenient for comprehensive flotation treatment of the ore pulp, ensures the efficiency of flotation, and reduces energy consumption and operating costs.

[0017] 2. After flotation is completed, the bubbles used for flotation will be pushed to the collection frame, and the mineral materials will be collected and processed by the collection frame. The liquid after the bubbles are broken can enter the reflux frame through the filter screen, and finally return to the lower installation sleeve through the connecting pipe and the reflux pipe to realize the recovery of excess liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the hydraulic fluidized bed flotation machine of the present invention;

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of the hydraulic fluidized bed flotation machine of the present invention;

[0020] Figure 3 is a cross-sectional view of the stirring mechanism of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the stirring mechanism and the flow guiding mechanism of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the gas injection mechanism of the present invention;

[0023] Figure 6 It is a structural separation diagram of the control feeding mechanism of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the material pushing mechanism of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the reflux mechanism of the present invention;

[0026] Fig. 9 is a cross-sectional view of the reflux mechanism of the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of the air outlet pipe, the flotation box and the air inlet joint of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of the air outlet pipe, the transmission pipe and the air inlet joint of the present invention;

[0029] Fig.12 It is a schematic structural diagram of the feeding frame and the partition net of the present invention.

[0030] In the figure: 1-flotation box; 2-top plate; 3-rear side plate; 4-driving motor; 41-belt transmission group; 51-upper mounting sleeve; 52-rotating sleeve; 53-injection pipe; 54-lower mounting sleeve; 55-exhaust valve; 56-one-way air inlet pipe; 6-discharging pipe; 61-feeding pipe; 62-feeding frame; 71-impeller; 72-turbine blade; 81-guide frame; 82-guide plate; 91-feeding one-way Valve 1; 92-baffle plate; 93-floating plate; 94-inlet check valve; 95-pressure valve; 101-transmission rod; 102-belt transmission group; 103-push plate; 104-servo motor; 111-return pipe; 112-collection frame; 113-return frame; 114-filter; 115-connecting pipe; 121-exhaust pipe; 122-transmission pipe; 123-inlet joint; 13-partition net. DETAILED DESCRIPTION

[0031] The present invention is described in detail below in conjunction with embodiments and drawings.

[0032] like Figure 1-Figure 7As shown, a hydraulic fluidized bed flotation machine of the present invention comprises a flotation box 1, a top plate 2, a rear side plate 3, a discharge pipe 6, a feed pipe 61, a feed frame 62, an air injection mechanism, a drive assembly and a control feed mechanism. The top of the flotation box 1 is connected to the top plate 2, the rear side of the top of the flotation box 1 is connected to the rear side plate 3, the middle of the bottom of the flotation box 1 is connected to the discharge pipe 6, and a valve is provided at the discharge pipe 6. The right side of the flotation box 1 is connected to the feed frame 62, and the feed frame 62 is connected to the feed pipe 61, and the feed pipe 61 extends into the flotation box 1. An air injection mechanism for injecting gas into the flotation box 1 is provided on the top plate 2, a drive assembly is provided between the rear side plate 3 and the air injection mechanism, and a control feed mechanism for controlling the discharge of materials is provided between the air injection mechanism and the feed pipe 61.

[0033] like Figure 2-Figure 5 As shown, the gas injection mechanism includes an upper mounting sleeve 51, a rotating sleeve 52, a gas injection pipe 53, a lower mounting sleeve 54, a gas outlet valve 55 and a one-way gas inlet pipe 56. The upper mounting sleeve 51 is connected to the front side of the top plate 2, the bottom of the upper mounting sleeve 51 vertically extends downward into the flotation box 1, and the bottom of the upper mounting sleeve 51 is connected to the lower mounting sleeve 54, and the feeding pipe 61 is connected to the inside of the lower mounting sleeve 54, so that the material in the feeding frame 62 can enter the lower mounting sleeve 54 through the feeding pipe 61. A discharge port is provided at the bottom of the lower mounting sleeve 54, and the rotating sleeve 52 is rotatably connected in the upper mounting sleeve 51 and the lower mounting sleeve 54. The top of the rotating sleeve 52 extends upward from the top of the upper mounting sleeve 51. An air injection pipe 53 is rotatably arranged in the rotating sleeve 52, and the top of the air injection pipe 53 extends out of the top of the rotating sleeve 52. The top of the air injection pipe 53 is fixedly connected to the outer wall of the upper mounting sleeve 51 through an L-shaped connecting rod to prevent the rotating sleeve 52 from driving the air injection pipe 53 to rotate when rotating. The lower part of the air injection pipe 53 passes downward through the bottom of the lower mounting sleeve 54, and a plurality of air outlet valves 55 are evenly spaced along the circumferential direction at the lower part of the air injection pipe 53, and a one-way air inlet pipe 56 is connected to the lower mounting sleeve 54.

[0034] like Figure 2 and Figure 3 As shown, the driving assembly includes a driving motor 4 and a belt transmission group 41, the driving motor 4 is installed on the rear side plate 3, and the belt transmission group 41 is installed between the output shaft of the driving motor 4 and the upper part of the rotating sleeve 52, so that the driving motor 4 can drive the rotating sleeve 52 to rotate through the belt transmission group 41. In this embodiment, the belt transmission group 41 includes a driving pulley, a driven pulley and a transmission belt, the output shaft of the driving motor 4 is vertically upward, the driving pulley is installed on the output shaft of the driving motor 4, the driven pulley is installed on the upper part of the rotating sleeve 52, and the transmission belt is sleeved on the driving pulley and the driven pulley. The belt transmission group 41 is a prior art, so it will not be described in detail.

[0035] like Figure 3 and Figure 4As shown, the hydraulic fluidized bed flotation machine also includes a stirring mechanism, which includes an impeller 71 and turbine blades 72. The impeller 71 is connected to the bottom of the rotating sleeve 52. A plurality of through grooves are evenly spaced on the bottom plate of the impeller 71 to connect the liquids on the upper and lower sides of the impeller 71. A plurality of turbine blades 72 are evenly spaced and connected to the bottom of the impeller 71 to disturb the slurry inside the flotation box 1.

[0036] like Figure 3 and Figure 4 As shown, the hydraulic fluidized bed flotation machine also includes a guide mechanism, which includes a guide frame 81 and a guide plate 82. The guide frame 81 is sleeved on the outer wall of the lower mounting sleeve 54 and is close to the bottom of the lower mounting sleeve 54. The bottom of the guide frame 81 is open. A plurality of guide plates 82 are evenly spaced and connected along the inner wall of the guide frame 81 and located outside the impeller 71. The guide plates 82 are used to guide the flow of slurry in the flotation machine.

[0037] like Figure 3 , Figure 4 and Figure 6 As shown, the control feed mechanism includes a feed check valve 91, a baffle plate 92, a floating plate 93, an air intake check valve 94 and a pressure valve 95. A feed check valve 91 is installed in the feed pipe 61, and the baffle plate 92 is fixedly installed at the discharge port at the bottom of the lower mounting sleeve 54. The baffle plate 92 blocks the discharge port at the bottom of the lower mounting sleeve 54. The rotating sleeve 52 passes through the baffle plate 92 and rotates and seals with the baffle plate 92. Pressure valves 95 are evenly spaced on the baffle plate 92. The upper part of the lower mounting sleeve 54 is slidably and sealably connected with the floating plate 93. The rotating sleeve 52 is provided with a reciprocating thread groove. The floating plate 93 is sleeved on the rotating sleeve 52 and threadedly cooperates with the reciprocating thread groove on the rotating sleeve 52, so that when the rotating sleeve 52 rotates, the floating plate 93 can be driven to move up and down through the reciprocating thread groove. A plurality of air intake check valves 94 are evenly spaced on the floating plate 93. The one-way air inlet pipe 56 is arranged obliquely in the flotation box 1. Figure 5 As shown, the top end of the one-way air inlet pipe 56 extends to the upper part of the flotation box 1 , and the bottom end of the one-way air inlet pipe 56 is located above the floating plate 93 .

[0038] like Figure 2 and Figure 7As shown, the hydraulic fluidized bed flotation machine also includes a pusher mechanism, which includes a transmission rod 101, a belt transmission group 102, a pusher plate 103 and a servo motor 104. The front and rear sides of the flotation box 1 and the upper part of the lower mounting sleeve 54 are both rotatably connected with the transmission rod 101, and a group of belt transmission groups 102 are installed on the left and right sides of the two transmission rods 101. A plurality of pusher plates 103 are evenly spaced and connected between the two transmission belts of each belt transmission group 102. The rotation of the transmission rod 101 drives the belt transmission group 102 to rotate, and the rotation of the belt transmission group 102 can drive the pusher plate 103 to move the bubbles on the upper part of the flotation box 1, and then push the bubbles to the collection frame 112. A servo motor 104 is installed on the left side of the flotation box 1, and the output shaft of the servo motor 104 passes through the flotation box 1 and is connected to the rear transmission rod 101.

[0039] When a hydraulic fluidized bed flotation machine is used to screen minerals, the ore pulp is first added to the feed frame 62, and the ore pulp enters the lower mounting sleeve 54 through the feed pipe 61 and the feed check valve 91. At this time, the mineral material is blocked by the pressure valve 95 and will accumulate in the lower mounting sleeve 54. Then, the driving motor 4 is controlled to drive the rotating sleeve 52 to rotate through the belt transmission group 41. When the rotating sleeve 52 rotates, it can drive the floating plate 93 to move up and down through the reciprocating threaded groove thereon. When the floating plate 93 moves downward, the air intake check valve 56 opens to intake air into the space in the lower mounting sleeve 54 above the floating plate 93, and the air intake check valve 94 and the feed check valve 91 are closed, so that the slurry in the lower mounting sleeve 54 can be squeezed, and the pressure valve 95 is opened, so that the slurry is pressurized to pass through the pressure valve 95 and enter the lower part of the flotation box 1; when the floating plate 93 moves upward, the pressure valve 95 is closed, and the feed check valve 91 is opened. Since the slurry in the feeding frame 62 is much higher than the slurry in the lower mounting sleeve 54, the slurry in the feeding frame 62 is under the gravity of Under the action of the feed pipe 61 and the feed check valve 91, the gas can flow into the lower installation sleeve 54. The air inlet check valve 94 is also opened, so that when the floating plate 93 moves upward, the gas on the floating plate 93 can enter the bottom of the floating plate 93, which is conducive to the floating plate 93 moving at the top of the lower installation sleeve 54. This is repeated, and the slurry can be intermittently added to the flotation box 1 for flotation treatment. At the same time, the solvent can be added to the flotation box 1. The solvent can decompose the useful minerals in the slurry. At the same time, gas can be injected through the gas injection pipe 53, and the gas will pass through the gas injection pipe 53 and discharged through the outlet valve 55. After the gas is discharged, bubbles are formed in the ore pulp. The bubbles float up and can drive the decomposed useful minerals to float up, so that the minerals can be floated. When the rotating sleeve 52 rotates, the impeller 71 and the turbine blade 72 can be driven to rotate. The ore pulp and the solvent can be stirred and mixed through the rotation of the impeller 71 and the turbine blade 72. The guide frame 81 and the guide plate 82 can guide the ore pulp and the solvent. The floated concentrate will float in the upper part of the flotation box 1. At this time, the servo motor 104 is controlled to start The transmission rod 101 and the belt transmission group 102 are driven to rotate. The belt transmission group 102 can drive the push plate 103 to move when rotating. The push plate 103 can push out the floating bubbles carrying the concentrate when moving, thereby achieving the effect of mineral flotation. After flotation, the valve at the discharge pipe 6 can be opened to discharge the material. In this way, the hydraulic fluidized bed flotation machine can be used to flotate the minerals, and during the flotation process, the slurry can be added in batches to avoid adding too much slurry at one time to affect the flotation process.

[0040] like Figure 8 and Fig. 9As shown, the hydraulic fluidized bed flotation machine also includes a reflux mechanism, which includes a reflux pipe 111, a collection frame 112, a reflux frame 113, a filter screen 114 and a connecting pipe 115. The upper front part of the flotation box 1 is connected to the collection frame 112, the bottom of the collection frame 112 is connected to the reflux frame 113, the bottom of the reflux frame 113 is connected to the connecting pipe 115, the connecting pipe 115 and the lower mounting sleeve 54 are connected to the reflux pipe 111, and the top of the reflux frame 113 is connected to the filter screen 114.

[0041] During the flotation process, the foam and concentrate pushed out by the push plate 103 will move to the top of the collecting frame 112 and enter the collecting frame 112, and the mineral elements will be collected by the collecting frame 112, and the liquid after the foam is broken will pass through the filter 114 and enter the reflux frame 113, and then return to the lower mounting sleeve 54 through the connecting pipe 115 and the reflux pipe 111, thereby achieving the effect of collecting the foam and the concentrate separately.

[0042] like Fig.10 and Fig.11 As shown, the hydraulic fluidized bed flotation machine also includes an air outlet pipe 121, an air inlet connector 123 and a transmission pipe 122. One end of the transmission pipe 122 passes through the flotation box 1 and extends into the bottom of the flotation box 1, and a plurality of air outlet pipes 121 are evenly spaced and connected to the extending end of the transmission pipe 122. The other end of the transmission pipe 122 extends to the outside of the flotation box 1 and is connected to the air inlet connector 123 on the front side outside the flotation box 1.

[0043] During the flotation process, gas can also be injected into the air inlet joint 123, and the gas can be injected into the air outlet pipe 121 through the transmission pipe 122, and then discharged to the lower part of the flotation box 1 through the air outlet pipe 121 to form bubbles. Then the bubbles will capture the minerals and float up, thereby accelerating the efficiency of flotation of the minerals.

[0044] like Fig.12 As shown, the hydraulic fluidized bed flotation machine also includes a partition 13, and the partition 13 is connected to the top of the feeding frame 62. The partition 13 can sort the added slurry so that large pieces of mineral material will not enter the feeding frame 62, avoiding blockage after the addition of large pieces of mineral material.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Hydraulic fluidized bed flotation machine, characterized by: It includes a flotation box, a top plate, a rear side plate, a discharge pipe, a feed pipe, a feed frame, an air injection mechanism, a driving component and a controlled feeding mechanism. The top of the flotation box is connected to the top plate and the rear side plate, the middle of the bottom of the flotation box is connected to the discharge pipe, the flotation box is connected to the feed frame, the feed frame is connected to the feed pipe, the top plate is provided with an air injection mechanism for injecting gas into the flotation box, a driving component is provided between the rear side plate and the air injection mechanism, and a controlled feeding mechanism for controlling the discharge of materials is provided between the air injection mechanism and the feed pipe.

2. The hydraulic fluidized bed flotation machine according to claim 1, characterized in that: The air injection mechanism comprises an upper mounting sleeve, a rotating sleeve, an air injection pipe, a lower mounting sleeve, an air outlet valve and a one-way air inlet pipe, the upper mounting sleeve is connected to the top plate, the bottom of the upper mounting sleeve extends vertically downward into the flotation box, and the bottom of the upper mounting sleeve is connected to the lower mounting sleeve, the feeding pipe is communicated with the interior of the lower mounting sleeve, a discharge port is provided at the bottom of the lower mounting sleeve, the rotating sleeve is rotatably connected to the upper mounting sleeve and the lower mounting sleeve, the top of the rotating sleeve extends upwardly out of the top of the upper mounting sleeve, an air injection pipe is rotatably arranged in the rotating sleeve, the top of the air injection pipe extends out of the top of the rotating sleeve, the top of the air injection pipe is fixedly connected to the upper mounting sleeve, the lower part of the air injection pipe passes downward through the bottom of the lower mounting sleeve, a plurality of air outlet valves are evenly installed at the lower part of the air injection pipe along the circumferential direction, and the one-way air inlet pipe is connected to the lower mounting sleeve.

3. The hydraulic fluidized bed flotation machine according to claim 2, characterized in that: The driving assembly comprises a driving motor and a belt transmission group. The driving motor is installed on the rear side plate, and the belt transmission group is installed between the output shaft of the driving motor and the top end of the rotating sleeve.

4. The hydraulic fluidized bed flotation machine according to claim 3, characterized in that: It also includes a stirring mechanism, which includes an impeller and turbine blades. The bottom of the rotating sleeve is connected to the impeller, a plurality of through grooves are evenly spaced on the bottom plate of the impeller, and a plurality of turbine blades are evenly spaced and connected to the bottom of the impeller.

5. The hydraulic fluidized bed flotation machine according to claim 4, characterized in that: It also includes a guide mechanism, which includes a guide frame and a guide plate. The guide frame is sleeved on the outer wall of the lower mounting sleeve and close to the bottom of the lower mounting sleeve. The bottom of the guide frame is open. A plurality of guide plates are evenly spaced and connected along the circumferential inner wall of the guide frame and located on the outer side of the impeller. The guide plates are used to guide the flow of ore pulp in the flotation machine.

6. The hydraulic fluidized bed flotation machine according to claim 5, characterized in that: The feed control mechanism includes a feed one-way valve, a baffle plate, a floating plate, an air intake one-way valve and a pressure valve. A feed one-way valve is installed in the feeding pipe. The baffle plate is fixedly installed at the discharge port at the bottom of the lower mounting sleeve. The rotating sleeve passes through the baffle plate and rotates and seals with the baffle plate. Pressure valves are evenly spaced on the baffle plate. The upper part of the lower mounting sleeve slides and is sealed with a floating plate. A reciprocating threaded groove is provided on the rotating sleeve. The floating plate is sleeved on the rotating sleeve and threadedly cooperates with the reciprocating threaded groove on the rotating sleeve. A plurality of air intake one-way valves are evenly spaced on the floating plate. The bottom of the one-way air intake pipe is located above the floating plate.

7. The hydraulic fluidized bed flotation machine according to claim 6, characterized in that: It also includes a pushing mechanism, which includes a transmission rod, a belt transmission group, a pushing plate and a servo motor. Transmission rods are rotatably connected on both sides of the flotation box and located on the upper part of the lower mounting sleeve. A group of belt transmission groups are installed on both sides of the two transmission rods. A plurality of pushing plates are evenly spaced and connected between the two transmission belts of each belt transmission group. The transmission rod rotates to drive the belt transmission group to rotate. A servo motor is installed on the flotation box, and the output shaft of the servo motor is connected to one of the transmission rods.

8. The hydraulic fluidized bed flotation machine according to claim 7, characterized in that: It also includes a reflux mechanism, which includes a reflux pipe, a collecting frame, a reflux frame, a filter and a connecting pipe. The flotation box is connected to the collecting frame, the bottom of the collecting frame is connected to the reflux frame, the bottom of the reflux frame is connected to the connecting pipe, the connecting pipe and the lower mounting sleeve are connected with a reflux pipe, and the top of the reflux frame is connected to the filter; the collecting frame collects the bubbles pushed out by the pushing plate.

9. The hydraulic fluidized bed flotation machine according to claim 8, characterized in that: It also includes an air outlet pipe, an air inlet joint and a transmission pipe. One end of the transmission pipe passes through the flotation box and extends into the bottom of the flotation box, and a plurality of air outlet pipes are evenly spaced and connected to the extension end of the transmission pipe. The other end of the transmission pipe is connected to the air inlet joint outside the flotation box.

10. The hydraulic fluidized bed flotation machine according to claim 9, characterized in that: It also includes a partition net, and the top of the feeding frame is connected with the partition net.