A flotation machine for mining engineering

Abstract

The utility model relates to the technical field of flotation machine discloses a flotation machine for mining engineering, including the body, the inside of body is sequentially equipped with first flotation cell, second flotation cell, the top fixedly connected with mounting bracket of body, the top between first flotation cell, second flotation cell and the inner wall of mounting bracket all is provided with gas pulp mixing subassembly, the body with gas pulp mixing subassembly between is provided with ore pulp feeding assembly. In the utility model, through the air supply of aeration assembly's air pump, gas tank distribution, combine four groups of mirror image setting aeration pipe and equidistant air nozzle, supplement air to first flotation cell, second flotation cell, realize ore pulp dissolved oxygen promotion, promote mineral particle and bubble adhesion, while bubble stirs ore pulp, prevents deposition, and symmetrical aeration ensures two pool conditions consistent, promotes flotation uniformity and overall efficiency, provides stable environment for mineral separation.

Description

Technical Field

[0001] This utility model relates to the field of flotation machine technology, and in particular to a flotation machine for mining engineering. Background Technology

[0002] Mining engineering is a comprehensive engineering discipline that integrates geological exploration, engineering technology, safety management and environmental governance. It is also the core area of ​​mineral resource development and utilization. Its core purpose is to extract solid mineral resources buried underground or on the surface, such as coal, metallic minerals and non-metallic minerals, through scientific and technological means, under the premise of ensuring safety, environmental protection and economic rationality, so as to provide basic raw materials for industrial production, energy supply and social and economic development.

[0003] In the field of mining engineering, flotation machines are the core equipment for mineral separation. Their performance directly affects the mineral extraction efficiency and purity. Flotation machines are the core equipment in the mineral separation and purification process in mining engineering. They are mainly used to process slurries of solid mineral resources such as metallic and non-metallic minerals. Their core function is to utilize the differences in the physical and chemical properties of mineral surfaces and use specific processes to make the target mineral particles adhere to the surface of bubbles, form foam, and separate them, thereby achieving effective separation of the target mineral from gangue and other impurities.

[0004] While existing flotation machines for mining engineering achieve slurry separation, they suffer from several drawbacks. Firstly, traditional flotation machines often employ single-cell or simple dual-cell structures with simplistic air-slurry mixing components. These typically rely on a single-layer impeller for mixing, leading to uneven mixing and inconsistent bubble sizes. This results in low adhesion efficiency between mineral particles and bubbles, with some slurry entering subsequent processes before fully reacting, severely impacting separation purity. Furthermore, although some equipment incorporates aeration structures, the disordered layout of aeration pipes and uneven distribution of nozzles cause localized over-aeration and under-aeration within the flotation tank, resulting in significant differences in operating conditions between the two tanks and further reducing flotation uniformity. Secondly, existing flotation machines suffer from significant shortcomings in their slurry delivery systems: most employ… Traditional flotation machines, with their straight-pipe slurry conveying lack of buffering structures, are prone to flow interruptions due to fluctuations in slurry supply, leading to disruptions in flotation operations. Some conveying components employ a unidirectional conveying design, making it impossible to achieve simultaneous slurry supply to both pools. Furthermore, the rough inner walls of the pipes and the absence of anti-sludge structures during slurry supply can cause slurry residue blockages, increasing maintenance frequency and workload while reducing overall operational efficiency. In addition, the support and transmission structures of traditional flotation machines lack stability, and vibrations during motor operation can cause component misalignment, affecting the coaxiality and transmission efficiency of the gas-slurry mixing components. Moreover, some vulnerable parts have poor wear resistance and short service life under the corrosion and impact of slurry, requiring frequent replacement and increasing equipment operating costs. Therefore, a flotation machine for mining engineering is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a flotation machine for mining engineering, which aims to solve the problems of uneven gas-slurry mixing, large differences in the operating conditions of the two pools leading to low separation purity, easy interruption and blockage of slurry transportation resulting in low operating efficiency, and unstable support and transmission structure and short service life of vulnerable parts, which increase the cost of use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flotation machine for mining engineering, comprising a body, wherein a first flotation cell and a second flotation cell are sequentially arranged inside the body, a mounting frame is fixedly connected to the top of the body, an air-slurry mixing component is provided between the top of the mounting frame and the inner wall of the first flotation cell and the second flotation cell, a slurry conveying component is provided between the body and the air-slurry mixing component, a flotation scraper mechanism is fixedly connected to the front edge of the top of the body, a collection guide trough is fixedly connected to the upper edge of the front of the body, and an aeration component is provided between the first flotation cell and the second flotation cell; The aeration assembly includes an air box, the outer wall of which is fixedly connected between the inner walls of the first flotation tank and the second flotation tank, an air pump is fixedly connected to the top of the air box, and an aeration pipe is fixedly connected to the outer surface of the air box.

[0007] As a further description of the above technical solution: The aeration pipes are provided in four parts, two of which are arranged in a mirror image of the central axis on the side of the air box inside the first flotation tank, and the other two are arranged in a mirror image of the central axis on the other side of the air box inside the second flotation tank.

[0008] As a further description of the above technical solution: An air nozzle is fixedly connected to the upper surface of the aeration pipe, and multiple air nozzles are evenly distributed along the length of the aeration pipe.

[0009] As a further description of the above technical solution: The gas-slurry mixing assembly includes a support base and a mounting base. The bottom ends of both the support base and the mounting base are fixedly connected to the upper surface of the mounting frame. A mixer is fixedly connected to the bottom end of the support base. A rotating shaft is movably connected between the inner sides of the support base and the mixer. A driven wheel is fixedly connected to the top end of the rotating shaft. A first motor is fixedly connected to the outer wall of the mounting base. A driving wheel is fixedly connected to the output end of the first motor. A transmission belt is drivingly connected between the outer sides of the driving wheel and the driven wheel.

[0010] As a further description of the above technical solution: The bottom end of the rotating shaft passes through the lower surface of the mixer and is sequentially fixedly connected to an outer impeller for throwing material and an inner impeller for mixing.

[0011] As a further description of the above technical solution: An air inlet pipe and a drain valve pipe are fixedly connected to one side of the outer wall of the mixer in sequence, and a slurry inlet pipe is fixedly connected to the other side of the outer wall of the mixer. The end of the drain valve pipe extends through to the outer surface of the machine body.

[0012] As a further description of the above technical solution: The slurry conveying assembly includes a slurry conveying pipe, the inner side of which is fixedly connected to the outer wall of the machine body. The slurry conveying pipe has a U-shaped pipe structure, and a feeding hopper is fixedly connected to the top of the slurry conveying pipe. The slurry conveying pipe is connected to the inner wall of the slurry inlet pipe.

[0013] As a further description of the above technical solution: A second motor is fixedly connected to the outer wall of the grout conveying pipe. The output end of the second motor extends into the interior of the grout conveying pipe and is fixedly connected to a bidirectional auger rod. A bearing seat is movably connected between the bidirectional auger rod and the inner wall of the grout conveying pipe. The outer wall of the bearing seat is fixedly connected to the inner wall of the grout conveying pipe.

[0014] This utility model has the following beneficial effects: 1. In this utility model, air is supplied by the air pump of the aeration component and distributed by the air box. Combined with four sets of mirror-arranged aeration pipes and equally spaced air nozzles, air is added to the first flotation tank and the second flotation tank to increase the dissolved oxygen in the slurry and promote the adhesion of mineral particles and air bubbles. At the same time, the air bubbles stir the slurry to prevent sedimentation, and the symmetrical aeration ensures that the conditions in the two tanks are consistent, improving the uniformity of flotation and the overall efficiency, and providing a stable environment for mineral separation.

[0015] 2. In this utility model, the double-layer impeller mixing of the air-slurry mixing component and the bidirectional screw conveying of the slurry conveying component, combined with the dual flotation tanks and synchronous operation, achieve efficient mixing and continuous flotation of slurry and air; the flotation scraper mechanism and the collection guide trough work together to complete the precise collection of foam, thereby improving the overall mineral separation efficiency and uniformity, reducing maintenance difficulty, and adapting to the harsh working conditions of mining engineering. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a flotation machine for mining engineering proposed in this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of a flotation machine for mining engineering proposed in this utility model; Figure 3 This is a schematic diagram of the aeration component structure of a flotation machine for mining engineering proposed in this utility model; Figure 4 This is a schematic diagram of a partially disassembled structure of the gas-slurry mixing component of a flotation machine for mining engineering proposed in this utility model; Figure 5This is a partial cross-sectional structural diagram of the slurry conveying component of a flotation machine for mining engineering proposed in this utility model.

[0017] Legend: 1. Machine body; 2. First flotation tank; 3. Second flotation tank; 4. Aeration assembly; 41. Air pump; 42. Air box; 43. Aeration pipe; 44. Air nozzle; 5. Mounting frame; 6. Air-slurry mixing assembly; 61. Support base; 62. Mounting base; 63. First motor; 64. Drive wheel; 65. Driven wheel; 66. Transmission belt; 67. Rotating shaft; 68. Mixer; 69. Air inlet pipe; 610. Slurry inlet pipe; 611. Outer impeller for throwing material; 612. Inner impeller for mixing; 613. Drain valve pipe; 7. Slurry conveying assembly; 71. Slurry conveying pipeline; 72. Feed hopper; 73. Second motor; 74. Bidirectional auger rod; 75. Bearing seat; 8. Flotation scraper mechanism; 9. Collection guide trough. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of a flotation machine for mining engineering, comprising a body 1. The body 1 serves as the basic load-bearing structure of the entire flotation machine, providing installation space and stable support for the various internal functional components. Its material is typically high-strength, wear-resistant steel to withstand the corrosiveness and impact of slurries in mining engineering. The body 1 contains a first flotation cell 2 and a second flotation cell 3, which provide the core reaction areas for the flotation separation of the slurry. This dual-chamber arrangement enables simultaneous and efficient flotation treatment of the slurry, improving mineral separation efficiency. A mounting frame 5 is fixedly connected to the top of the body 1 by welding or bolting. Its structural design must meet the load-bearing requirements of the gas-slurry mixing component 6. To ensure coaxiality and stability after component installation and prevent component displacement due to vibration during operation, air-slurry mixing components 6 are installed between the top of the mounting frame 5 and the inner walls of the first flotation cell 2 and the second flotation cell 3. These components are key to achieving thorough mixing of air and slurry. Their placement in both flotation cells ensures uniform contact between the slurry and air in each cell, creating conditions for subsequent mineral adsorption bubbles. The air-slurry mixing component 6 includes a support base 61 and a mounting base 62. The support base 61 primarily supports the mixer 68 and the rotating shaft 67, while the mounting base 62 provides a fixed foundation for the first motor 63. Both components must possess sufficient structural strength to withstand the torque generated by the motor's operation and the transmission of the rotating shaft 67. The bottom ends of the mounting base 62 are all fixedly connected to the upper surface of the mounting frame 5 by bolts or welding. The connection points need to be reinforced to prevent loosening due to vibration during long-term operation, which would affect the normal operation of the components. The bottom end of the support base 61 is fixedly connected to a mixer 68, which provides a closed cavity for mixing air and slurry. Its internal structure design must conform to the principles of fluid mechanics to guide the slurry and air to form vortices within the cavity, enhancing the mixing effect. A rotating shaft 67 is movably connected between the inner sides of the support base 61 and the mixer 68. The rotating shaft 67 is made of precision-machined alloy steel with a wear-resistant surface treatment. It is movably connected to the support base 61 and the mixer 68 through bearings to ensure flexibility and coaxiality during rotation and reduce friction. To minimize power loss, a driven wheel 65 is fixedly connected to the top of the rotating shaft 67. The driven wheel 65 is fixed to the rotating shaft 67 by a key connection or interference fit to ensure no relative slippage during power transmission. Its wheel diameter must match that of the driving wheel 64 to achieve a specific transmission ratio and control the rotational speed of the rotating shaft 67. A first motor 63 is fixedly connected to the outer wall of the mounting base 62. The first motor 63 provides power to the gas-powder mixing assembly 6. It is a three-phase asynchronous motor with sufficient power and torque, and the output end of the motor needs to be equipped with a coupling or directly fixed to the driving wheel 64 to ensure stable power output. The output end of the first motor 63 is fixedly connected to the driving wheel 64, which is fixed to the output shaft of the first motor 63 by a flat key. Its material is high-strength cast iron or steel.The surface needs to be heat-treated to improve wear resistance and extend service life. A transmission belt 66 is connected between the outer sides of the drive wheel 64 and the driven wheel 65. The transmission belt 66 is a rubber synchronous belt or V-belt, which has good elasticity and wear resistance, and can realize smooth power transmission between the drive wheel 64 and the driven wheel 65. At the same time, it can buffer vibration during operation and reduce noise. The bottom end of the rotating shaft 67 passes through the lower surface of the mixer 68 and is sequentially fixedly connected to the outer impeller 611 and the inner impeller 612. The outer impeller 611 and the inner impeller 612 adopt a double-layer coaxial design. The outer impeller 611 can throw the mixed gas-slurry mixture outward to increase the contact area with the slurry in the flotation cell. The inner impeller 612 enters the mixer 68. The mixer 68 is a step-by-step mixing system for slurry and air to improve mixing uniformity. An air inlet pipe 69 and a drain valve pipe 613 are sequentially fixedly connected to one side of the outer wall of the mixer 68. The air inlet pipe 69 is used to introduce compressed air into the mixer 68; its diameter needs to be designed according to the flotation machine's processing capacity to ensure sufficient air supply. The drain valve pipe 613 is used to periodically remove impurities or sediments deposited in the mixer 68. A gate valve or ball valve is selected for easy operation and control. A slurry inlet pipe 610 is fixedly connected to the other side of the outer wall of the mixer 68. The slurry inlet pipe 610 is the channel for the slurry to enter the mixer 68. One end of it is connected to the slurry conveying pipe 71, and the other end is welded or flanged to the mixer 68. The inner wall of the pipe needs to be smooth to reduce slurry flow resistance and prevent slurry accumulation. The drain valve pipe 613... The end of the valve extends through to the outer surface of the machine body 1, allowing operators to directly operate the drain valve 613 for draining from outside the machine body 1 without disassembling internal components, thus reducing maintenance difficulty and workload. A slurry conveying assembly 7 is installed between the machine body 1 and the gas-slurry mixing assembly 6. The slurry conveying assembly 7 is responsible for conveying the slurry to be flotated to the inlet pipe 610 of the gas-slurry mixing assembly 6, achieving a continuous and stable supply of slurry and avoiding the impact of slurry supply interruption on flotation efficiency. The slurry conveying assembly 7 includes a slurry conveying pipe 71, which is made of wear-resistant steel pipe. Its structural design must meet the requirements of sealing and pressure resistance during slurry conveying to prevent slurry leakage or pipe rupture. The inner side of the slurry conveying pipe 71 is fixedly connected to the outer wall of the machine body 1 by a bracket or clamp. The outer wall of the body 1 is fixed, and the fixing position must avoid the critical structure and other components of the body 1. At the same time, it is necessary to ensure that the slope of the pipeline after installation is reasonable to facilitate the flow of slurry. The slurry conveying pipeline 71 has a U-shaped pipeline structure. The U-shaped structure design can sequentially distribute and transport the slurry to the gas-slurry mixing component 6 in the first flotation cell 2 and the second flotation cell 3. It can also form a certain slurry buffer space in the pipeline to avoid the interruption of slurry during the slurry transportation process. At the same time, it can reduce the impact of slurry on the pipeline and extend the service life of the pipeline. The top of the slurry conveying pipeline 71 is fixedly connected to the feeding hopper 72. The feeding hopper 72 is used to receive the externally transported slurry. Its opening size is large to facilitate the smooth flow of slurry. The hopper wall adopts an inclined design to prevent slurry from accumulating in the hopper. The bottom transitions smoothly with the slurry conveying pipeline 71.To reduce slurry flow resistance, the inner wall of the slurry delivery pipe 71 is continuously connected to the inner wall of the slurry inlet pipe 610. The connection is achieved using a flange or welding to ensure a good seal and prevent slurry leakage. Simultaneously, the pipe axes are aligned to reduce local resistance during slurry flow. A second motor 73 is fixedly connected to the outer wall of the slurry delivery pipe 71. The second motor 73 provides rotational power to the bidirectional auger rod 74. A motor model matching the slurry delivery capacity is selected, and its installation position must facilitate maintenance and repair. Furthermore, the motor output shaft must be aligned with the axis of the bidirectional auger rod 74. Consistent with the above, the output end of the second motor 73 extends into the slurry conveying pipe 71 and is fixedly connected to a bidirectional auger rod 74. The bidirectional auger rod 74 adopts a spiral blade structure, and the blade material is wear-resistant alloy. The bidirectional design can realize the conveying of slurry to the slurry conveying pipe 71 in two directions, respectively supplying slurry to the gas-slurry mixing components 6 corresponding to the first flotation cell 2 and the second flotation cell 3, thereby improving the slurry supply efficiency and uniformity. A bearing seat 75 is movably connected between the bidirectional auger rod 74 and the inner wall of the slurry conveying pipe 71. A deep groove ball bearing or rolling bearing is installed in the bearing seat 75. Bearings are used to support the bidirectional auger rod 74, reducing friction between it and the inner wall of the slurry conveying pipe 71 during rotation, ensuring flexible operation of the auger rod, and preventing slurry from entering the bearing and affecting its lifespan. The outer wall of the bearing seat 75 is fixedly connected to the inner wall of the slurry conveying pipe 71 by welding or interference fit. After fixing, it is necessary to ensure that the axis of the bearing seat 75 coincides with the axis of the bidirectional auger rod 74 to avoid eccentric vibration during auger rod operation. A flotation scraper mechanism 8 is fixedly connected to the leading edge of the top of the machine body 1. The flotation scraper mechanism 8 is used for... The foam formed on the surface of the flotation cell, with mineral bubbles attached, is scraped off and conveyed to the collection guide trough 9. The scraper is made of wear-resistant rubber or plastic to avoid scratching the inner wall of the flotation cell. The scraper's rotation speed and angle can be adjusted according to the foam thickness. The collection guide trough 9 is fixedly connected to the upper edge of the front of the machine body 1. The collection guide trough 9 receives the foam scraped off by the flotation scraper mechanism 8. Its cross-section is U-shaped with a smooth inner wall, facilitating smooth flow of the foam to subsequent foam processing equipment. The installation height of the guide trough must be lower than the scraping end of the scraper mechanism to ensure smooth foam flow.

[0020] Reference Figures 1-3An aeration assembly 4 is installed between the first flotation tank 2 and the second flotation tank 3. The aeration assembly 4 is used to further supplement air in the first flotation tank 2 and the second flotation tank 3, increasing the dissolved oxygen content in the slurry, promoting the adhesion of mineral particles and air bubbles, and simultaneously stirring the slurry to prevent sedimentation at the bottom of the flotation tanks. The aeration assembly 4 includes an air box 42, which provides temporary storage and distribution space for compressed air. The air box 42 is made of pressure-resistant steel and undergoes internal anti-corrosion treatment to prevent moisture in the compressed air from causing rust. The outer wall of the air box 42 is fixedly connected to the inner walls of the first flotation tank 2 and the second flotation tank 3 by welding or bolting. The air box 42 is positioned at the partition between two flotation tanks to ensure that it can simultaneously supply air to the aeration pipes 43 in both flotation tanks. An air pump 41 is fixedly connected to the top of the air box 42, providing compressed air to the aeration components 4. A vortex pump or Roots blower is selected, and its supply pressure and flow rate must be designed according to the volume of the flotation tanks and the flotation process requirements to ensure that the aeration effect meets the needs. Aeration pipes 43 are fixedly connected to the outer surface of the air box 42. The aeration pipes 43 are made of corrosion-resistant PVC or stainless steel, and their diameter must match the air outlet of the air box 42 to ensure that air is evenly distributed to each aeration pipe 43. There are four aeration pipes 43. The design of section 3 enables uniform aeration coverage of both flotation tanks, avoiding insufficient air supply from a single aeration pipe 43 or concentrated aeration areas. The two aeration pipes 43 are mirror-oriented along their central axis on the side closest to the air box 42 inside the first flotation tank 2. This mirror-oriented arrangement ensures that the two aeration pipes 43 form symmetrical aeration areas within the first flotation tank 2, guaranteeing uniform aeration of the slurry at different locations within the first flotation tank 2 and improving flotation consistency. Similarly, the other two aeration pipes 43 are mirror-oriented along their central axis on the other side closest to the air box 42 inside the second flotation tank 3. This mirror-oriented arrangement also ensures that the aeration area within the second flotation tank 3 is symmetrical and uniform, consistent with the first flotation tank 2. The aeration structure is designed to ensure consistent aeration conditions in both stages of flotation, thereby improving the overall flotation effect. Air nozzles 44 are fixedly connected to the upper surface of the aeration pipe 43. The air nozzles 44 adopt a microporous or umbrella-shaped structure, which can disperse the compressed air in the aeration pipe 43 into fine bubbles, increase the contact area between air and slurry, improve oxygen utilization and the probability of bubble adhesion to mineral particles. Multiple air nozzles 44 are evenly distributed along the length of the aeration pipe 43. The even distribution allows the bubbles to be released evenly along the length of the aeration pipe 43, avoiding excessively dense or sparse local bubbles, ensuring the uniformity of aeration of the slurry in the flotation tank, and providing a stable environment for mineral separation.

[0021] Working principle: When the flotation machine for this mining project is working, the slurry is first transported through the slurry conveying assembly 7: the operator pours the slurry to be flotated into the feeding hopper 72 at the top of the slurry conveying pipe 71. The feeding hopper 72, through its inclined hopper wall and smooth transition with the slurry conveying pipe 71, ensures that the slurry flows into the U-shaped slurry conveying pipe 71 without sludge accumulation. Then, the second motor 73 is started, and its output end drives the bidirectional auger rod 74 inside the slurry conveying pipe 71 to rotate. The bidirectional auger rod 74 passes through the bearing seat 75. The slurry is movably connected to the inner wall of the slurry conveying pipe 71 to ensure flexible operation and no eccentric vibration. The bidirectional auger rod 74 uses the bidirectional transmission characteristics of the spiral blades to transport the slurry to two directions of the slurry conveying pipe 71. Finally, through the connection between the slurry conveying pipe 71 and the slurry inlet pipe 610, the slurry is stably transported to the mixer 68 of the gas-slurry mixing component 6. At the same time, the U-shaped slurry conveying pipe 71 transports the slurry to the gas-slurry mixing component 6 corresponding to the first flotation cell 2 and the second flotation cell 3 to ensure the continuity of slurry supply. After the slurry enters the mixer 68, the air-slurry mixing component 6 begins to fully mix the air and slurry: the first motor 63 on the mounting base 62 is started, and the output end of the first motor 63 drives the drive wheel 64 to rotate. The drive wheel 64 transmits power to the driven wheel 65 at the top of the support base 61 through the transmission belt 66. The driven wheel 65 then drives the rotating shaft 67 fixed thereto to rotate. The mixing inner impeller 612 and the throwing outer impeller 611, which are fixed in sequence at the bottom of the rotating shaft 67, rotate synchronously. The mixing inner impeller 612 rotates in the mixer. The slurry is stirred in the closed cavity of mixer 68. At the same time, external compressed air is introduced into the cavity through the air inlet pipe 69 on the outer wall of mixer 68. Under the stirring action of the impeller 612 inside the mixer, the air and slurry form a vortex and are fully mixed. The mixed air-slurry mixture is then thrown outward by the throwing impeller 611 and evenly enters the first flotation cell 2 and the second flotation cell 3 inside the machine body 1. If impurities are deposited in the mixer 68 during this period, they can be discharged periodically through the drain valve pipe 613 that runs through to the outer surface of the machine body 1, reducing the difficulty of maintenance. After the gas-slurry mixture enters the first flotation tank 2 and the second flotation tank 3, the aeration assembly 4 further enhances the flotation effect: the air pump 41 at the top of the air box 42 is activated, and the air pump 41 delivers compressed air to the air box 42, which is fixed between the inner walls of the two flotation tanks. The air box 42, through its temporary storage and distribution function, evenly delivers the compressed air to the four aeration pipes 43 on its outer surface, two near the first flotation tank 2 and two near the second flotation tank 3, all mirror-image arranged along the side central axis of the air box 42. The compressed air is dispersed into fine bubbles through the air nozzles 44 evenly distributed along the length of the aeration pipes 43 and released into the slurry of the two flotation tanks. On the one hand, this replenishes the dissolved oxygen in the slurry, promotes the adhesion of mineral particles to the bubbles, and on the other hand, it stirs the slurry by the bubbles, preventing the slurry from settling at the bottom of the flotation tanks, ensuring uniform aeration in the two flotation tanks, and providing a stable environment for mineral separation. Finally, the flotation scraper mechanism 8 and the collection guide trough 9 complete the foam collection: In the first flotation cell 2 and the second flotation cell 3, the bubbles with attached mineral particles gradually rise to the surface of the slurry to form foam. The flotation scraper mechanism 8 at the top front edge of the machine body 1 is activated. Its wear-resistant rubber or plastic scraper scrapes the foam off the surface of the flotation cell according to the set speed and angle, and transports it to the collection guide trough 9 on the front upper edge of the machine body 1. The collection guide trough 9 uses a U-shaped cross section and smooth inner wall to allow the foam to flow smoothly to the subsequent foam treatment equipment, and finally completes the flotation separation operation of the slurry in the entire mining project.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mining engineering flotation machine comprising a body (1), characterized in that: The machine body (1) is provided with a first flotation tank (2) and a second flotation tank (3) in sequence inside. A mounting frame (5) is fixedly connected to the top of the machine body (1). A gas-slurry mixing component (6) is provided between the top of the mounting frame (5) and the inner wall of the first flotation tank (2) and the second flotation tank (3). A slurry conveying component (7) is provided between the machine body (1) and the gas-slurry mixing component (6). A flotation scraper mechanism (8) is fixedly connected to the front edge of the top of the machine body (1). A collection guide trough (9) is fixedly connected to the upper edge of the front of the machine body (1). An aeration component (4) is provided between the first flotation tank (2) and the second flotation tank (3). The aeration assembly (4) includes an air box (42), the outer wall of which is fixedly connected between the inner walls of the first flotation tank (2) and the second flotation tank (3), an air pump (41) is fixedly connected to the top of the air box (42), and an aeration pipe (43) is fixedly connected to the outer surface of the air box (42).

2. A flotation machine for mining engineering according to claim 1, characterized in that: The aeration pipe (43) is provided in four parts, two of which are mirror images of the central axis of the air box (42) inside the first flotation tank (2), and the other two are mirror images of the central axis of the air box (42) inside the second flotation tank (3).

3. A flotation machine for mining engineering according to claim 1, characterized in that: An air nozzle (44) is fixedly connected to the upper surface of the aeration pipe (43), and multiple air nozzles (44) are evenly distributed along the length of the aeration pipe (43).

4. A flotation machine for mining engineering according to claim 1, characterized in that: The gas-slurry mixing assembly (6) includes a support base (61) and a mounting base (62). The bottom ends of the support base (61) and the mounting base (62) are fixedly connected to the upper surface of the mounting frame (5). The bottom end of the support base (61) is fixedly connected to a mixer (68). A rotating shaft (67) is movably connected between the inner sides of the support base (61) and the mixer (68). A driven wheel (65) is fixedly connected to the top end of the rotating shaft (67). A first motor (63) is fixedly connected to the outer wall of the mounting base (62). A driving wheel (64) is fixedly connected to the output end of the first motor (63). A transmission belt (66) is drivingly connected between the outer sides of the driving wheel (64) and the driven wheel (65).

5. A flotation machine for mining engineering according to claim 4, characterized in that: The bottom end of the rotating shaft (67) passes through the lower surface of the mixer (68) and is sequentially fixedly connected to the outer impeller (611) for throwing material and the inner impeller (612) for mixing.

6. A flotation machine for mining engineering according to claim 5, characterized in that: An air inlet pipe (69) and a drain valve pipe (613) are fixedly connected to one side of the outer wall of the mixer (68), and a slurry inlet pipe (610) is fixedly connected to the other side of the outer wall of the mixer (68). The end of the drain valve pipe (613) extends through to the outer surface of the machine body (1).

7. A mineral engineering flotation machine as claimed in claim 1, characterized in that: The slurry conveying assembly (7) includes a slurry conveying pipe (71), the inner side of which is fixedly connected to the outer wall of the machine body (1). The slurry conveying pipe (71) has a U-shaped pipe structure. A feeding hopper (72) is fixedly connected to the top of the slurry conveying pipe (71). The slurry conveying pipe (71) is connected to the inner wall of the slurry inlet pipe (610).

8. A flotation machine for mining engineering according to claim 7, characterized in that: A second motor (73) is fixedly connected to the outer wall of the slurry conveying pipe (71). The output end of the second motor (73) extends into the interior of the slurry conveying pipe (71) and is fixedly connected to a bidirectional auger rod (74). A bearing seat (75) is movably connected between the bidirectional auger rod (74) and the inner wall of the slurry conveying pipe (71). The outer wall of the bearing seat (75) is fixedly connected to the inner wall of the slurry conveying pipe (71).

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