High-pressure ore pulp bubble rotary conveying device and flotation machine

Abstract

The utility model relates to the technical field of mineral flotation, in particular to a high-pressure ore pulp bubble rotary conveying device and a flotation machine. Comprising an air inlet pipe, the air inlet pipe is communicated with a first frame-shaped pipe, the first frame-shaped pipe is fixedly connected and communicated with a plurality of or a plurality of groups of first spray pipes, and nozzles of the first spray pipes face the left or right position of the center of the first frame-shaped pipe. By means of the structure, the air inlet pipe can be connected to the air blower when ore pulp is subjected to flotation, a large amount of air is directly introduced into the ore pulp through the first spraying pipe, and therefore the amount of air introduced into the ore pulp is increased, generation of bubbles is accelerated, the flotation efficiency is improved, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mineral flotation technology, specifically to a high-pressure slurry bubble rotary conveying device and flotation machine. Background Technology

[0002] After ore mining, different minerals need to be screened, which requires the use of flotation machines. The main principle of flotation machines is to use the differences in the surface properties of minerals to carry out minerals with poor hydrophilicity through the buoyancy of air bubbles.

[0003] In existing technologies, bubble conveying devices for generating bubbles mainly consist of impellers. An air channel is located in the center of the impeller, allowing air to enter. As the impeller rotates, air enters the slurry through the air channel and generates bubbles near the impeller. However, this method of generating bubbles for flotation has low bubble generation efficiency and high energy consumption. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a high-pressure slurry bubble rotary conveying device and flotation machine to solve the issues of low bubble generation efficiency and high energy consumption in the prior art.

[0005] This utility model is achieved using the following technical solution: a high-pressure slurry bubble rotary conveying device, including an air inlet pipe, a first frame pipe connected to the air inlet pipe, and several or several groups of first nozzles fixedly connected and connected to the first frame pipe, with the nozzle of the first nozzle facing a position slightly to the left or right of the center of the first frame pipe.

[0006] The above structure allows the air inlet pipe to be connected to the blower during flotation, and a large amount of air to be directly introduced into the slurry through the first nozzle. This increases the amount of air introduced into the slurry, accelerates the generation of bubbles, and thus speeds up the flotation process while saving energy.

[0007] Preferably, the first frame tube is rectangular and includes a first side tube, a third side tube, and a second side tube and a fourth side tube that are parallel to each other. The first side tube, the second side tube, the third side tube, and the fourth side tube are fixedly connected end to end and communicate with each other. By setting the first frame tube to be rectangular, the first frame tube can fit more closely to the inner surface of the flotation machine, which facilitates the installation of the first frame tube.

[0008] Preferably, the outlet end of the air inlet pipe is fixedly connected to and communicates with a fixed pipe, which passes through the center of the first frame-shaped pipe. Two first connecting pipes are fixedly connected to and communicate with the fixed pipe. The ends of the two first connecting pipes furthest from the fixed pipe are respectively fixedly connected to and communicate with the middle parts of the first side pipe and the third side pipe. The first connecting pipes are located above the first frame-shaped pipe. The arrangement of the first connecting pipes facilitates the air inlet pipe entering the first frame-shaped pipe, while their location above the first frame-shaped pipe prevents them from interfering with the blowing of the first nozzle.

[0009] Preferably, the first frame tube is provided with four sets of first nozzles, which are respectively located at the end of the first side tube near the fourth side tube, the end of the second side tube near the first side tube, the end of the third side tube near the second side tube, and the end of the fourth side tube near the third side tube.

[0010] The nozzle of the first nozzle on the first side tube faces the third side tube, the nozzle of the first nozzle on the second side tube faces the fourth side tube, the nozzle of the first nozzle on the third side tube faces the first side tube, and the nozzle of the first nozzle on the fourth side tube faces the second side tube. This structural arrangement allows the first nozzle to generate a large number of bubbles and also to rotate the slurry, thus replacing the impeller and accelerating the adhesion of poorly hydrophilic minerals to the bubbles, further increasing flotation efficiency.

[0011] Preferably, the first set of nozzles shortens sequentially from the end to the middle of their corresponding side nozzles. This structural arrangement facilitates the rotation of the slurry within the device.

[0012] Preferably, a second frame-shaped tube with the same structure as the first frame-shaped tube is provided below the first frame-shaped tube. Two second connecting tubes are fixedly connected and communicate with the bottom of the fixed tube. The end of the second connecting tube away from the fixed tube is fixedly connected and communicates with the second frame-shaped tube, and the second connecting tube is located below the second frame-shaped tube. The arrangement of the second frame-shaped tube further promotes the swirling flow of the slurry and accelerates the adhesion of minerals with poor hydrophilicity to air bubbles.

[0013] Preferably, four sets of second nozzles with the same structure and installation position as the first nozzle are fixedly connected and communicated on the second frame-shaped tube, and the nozzles of the second nozzles are inclined upwards. By setting the second nozzles to be inclined upwards, the phenomenon of mineral powder falling downwards due to its own gravity during long-term flotation can be reduced, thereby further improving the flotation efficiency.

[0014] Preferably, the upward tilt angle of the second nozzle is 15°. By setting the tilt angle to 15°, the device can both prevent the slurry from rotating and prevent some mineral powder from settling at the bottom of the flotation machine due to its own gravity.

[0015] A flotation machine using a high-pressure slurry bubble rotary conveying device includes a flotation box, a scraper that can be driven to rotate by a drive mechanism is provided on the top of the flotation box, and a froth box is fixedly installed on the front side of the flotation box. The flotation machine is characterized in that a first frame tube is fixedly installed inside the flotation box, and the left and right sides of the first frame tube are fixedly connected to the flotation box.

[0016] The above structure significantly improves the bubble generation efficiency during flotation, thereby accelerating the flotation process and reducing energy consumption.

[0017] Preferably, the drive mechanism includes a motor fixedly mounted on the top of the flotation tank. The output shaft of the motor is fixedly connected to a drive pulley, which is connected to a driven pulley via a belt drive. A rotating shaft is coaxially fixedly connected to the driven pulley, with both ends of the shaft rotatably connected to the flotation tank. The shaft is also fixedly connected to a scraper. The transmission between the drive and driven pulleys allows for a wider range of motor installation positions, increasing the applicability of the device.

[0018] In summary, the beneficial effects of this utility model are as follows:

[0019] 1. By setting up the first frame tube and the first nozzle, a large amount of high-pressure air can be directly introduced into the slurry during flotation, thereby improving the efficiency of bubble generation during the flotation process. In addition, by arranging multiple sets of first nozzles, the first nozzles can generate a large number of bubbles while also driving the slurry to flow, thereby further accelerating the adhesion of minerals with poor hydrophilicity to bubbles.

[0020] 2. By setting up the second frame tube and the second nozzle, this device can not only further accelerate the rotation and flow of the slurry, but also prevent the mineral powder from settling downwards under its own gravity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a high-pressure mineral slurry bubble rotary conveying device.

[0022] Figure 2 This is a schematic diagram of the overall structure of the flotation machine of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of a flotation machine.

[0024] In the diagram: 1-Blower; 2-Inlet pipe; 3-First side pipe; 4-Fixed pipe; 5-Second side pipe; 6-Third side pipe; 7-Fourth side pipe; 9-First nozzle; 10-Second nozzle; 12-Flotation box; 13-Rotating shaft; 14-Scraper; 15-Foam box; 16-Motor; 17-Drive pulley; 18-Belt; 19-Driven pulley; 20-First frame pipe; 21-Second frame pipe; 22-First connecting pipe; 23-Second connecting pipe. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0026] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1 , Figure 3 As shown, this utility model provides a high-pressure slurry bubble rotary conveying device, including an air inlet pipe 2. One end of the air inlet pipe 2 is fixedly connected to and communicates with a blower 1, and the other end is connected to a first frame-shaped pipe 20. The blower 1 used in this device is an air suspension blower 1, which mainly generates high-pressure air and delivers the high-pressure air to the air inlet pipe 2. Several or several groups of first nozzles 9 are fixedly connected to and communicate with the first frame-shaped pipe 20. Specifically, the first nozzles 9 are located inside the first frame-shaped pipe 20, and the nozzles of the first nozzles 9 face a position slightly to the left or right of the center of the first frame-shaped pipe 20.

[0029] The first frame tube 20 in this device can be a circular frame or a rectangular frame. Compared with a circular frame, a rectangular frame is more convenient to install. Therefore, in this embodiment, the first frame tube 20 is rectangular. The first frame tube 20 includes a first side tube 3 and a third side tube 6 that are parallel to each other, and a second side tube 5 and a fourth side tube 7 that are parallel to each other. The first side tube 3, the second side tube 5, the third side tube 6, and the fourth side tube 7 are fixedly connected end to end and communicate with each other.

[0030] As a further illustration of this example, the outlet end of the air inlet pipe 2 is fixedly connected to and communicates with a fixed pipe 4. The fixed pipe 4 passes through the center of the first frame-shaped pipe 20. Two first connecting pipes 22 are fixedly connected to and communicate with the fixed pipe 4. The ends of the two first connecting pipes 22 away from the fixed pipe 4 are fixedly connected to and communicate with the middle of the first side pipe 3 and the third side pipe 6, respectively. In order to prevent the first nozzle 9 from blowing air onto the first connecting pipes 22 and affecting the rotation of the slurry, the first connecting pipes 22 are positioned above the first frame-shaped pipe 20, that is, the first connecting pipes 22 are "L"-shaped. The two first connecting pipes 22 are fixedly connected to and communicate with the middle of the top of the first side pipe 3 and the third side pipe 6, respectively.

[0031] In this embodiment, to allow the slurry to rotate, the first frame tube 20 in this device is preferably square. Four sets of first nozzles 9 are provided on the first frame tube 20. These four sets of first nozzles 9 are respectively located at the ends of the first side tube 3 near the fourth side tube 7, the second side tube 5 near the first side tube 3, the third side tube 6 near the second side tube 5, and the fourth side tube 7 near the third side tube 6. Each set of first nozzles 9 shortens sequentially from the end to the middle of its corresponding side tube. The nozzles of the first nozzles 9 on the first side tube 3 face the third side tube 6, the nozzles of the first nozzles 9 on the second side tube face the fourth side tube 7, the nozzles of the first nozzles 9 on the third side tube 6 face the first side tube 3, and the nozzles of the first nozzles 9 on the fourth side tube 7 face the second side tube 5.

[0032] By installing the first nozzle as described above, this device can not only introduce a large amount of air into the slurry under the action of the blower 1, but also make the slurry flow, thereby replacing the impeller on the traditional equipment, making the slurry rotate, accelerating the adhesion of minerals and bubbles, and further increasing the flotation efficiency.

[0033] In this embodiment, a second frame tube 21 with the same structure as the first frame tube 20 is provided below the first frame tube 20. Four sets of second nozzles 10 with the same structure and installation position as the first nozzle 9 are fixedly connected and communicated on the second frame tube 21. By setting the second frame tube 21 and the second nozzles 10, the air content introduced into the slurry is further increased, thereby accelerating the speed of bubble generation during flotation. The second frame tube 21 and the second nozzles 10 have the same structure as the first frame tube 20 and the first nozzle 9, which enables the device to further accelerate the rotational flow of the slurry, thereby improving the flotation efficiency. Two second connecting tubes 23 are fixedly connected and communicated to the bottom of the fixed tube 4. The end of the second connecting tube 23 away from the fixed tube 4 is fixedly connected and communicated to the second frame tube 21. Similarly, in order not to affect the normal blowing of the second nozzles 10, the second connecting tubes 23 are set below the second frame tube 21.

[0034] As a further illustration of this example, the nozzle of the second nozzle 10 is tilted upward at an angle of 15°. By tilting it upward at 15°, the second nozzle 10 does not affect the rotation of the slurry and also reduces the problem of downward deposition of minerals under their own gravity during the flotation process, thereby making the flotation process of the slurry more complete.

[0035] like Figure 2 , Figure 3 As shown, this utility model also provides a flotation machine using the above-mentioned high-pressure slurry bubble rotary conveying device, including a flotation box 12. The top of the flotation box 12 is provided with a scraper 14 that can be driven to rotate by a drive mechanism. A froth box 15 is fixedly installed on the front side of the flotation box 12. The scraper 14 can scrape the froth floating on the surface of the slurry into the froth box 15. The top of the froth box 15 is connected to the top of the flotation box 12. The flotation box 12 is mainly used to receive the froth generated by the flotation box 12 and send the froth to the next process. The froth box 15 is conventional prior art in this field and will not be described in detail here.

[0036] The first frame tube 20, the first nozzle 9, the first connecting pipe 22, the second frame tube 21, the second nozzle 10, the second connecting pipe 23, and the fixed pipe 4 are all located inside the flotation tank 12. The blower 1 is located behind the flotation tank 12. The end of the air inlet pipe 2 away from the blower 1 passes through the top wall of the flotation tank 12 and is fixedly connected to the top of the fixed pipe 4. The left and right ends of the first frame tube 20 and the second frame tube 21 are fixedly connected to the inner wall of the flotation tank 12. That is, the left and right ends of the third side tube 6 of the first side tube 3 and the left and right ends of the corresponding side tubes of the second frame tube 21 and the first side tube 3 and the third side tube 6 are fixedly connected to the inner wall of the flotation tank 12.

[0037] The driving mechanism described above can be any structure capable of rotating the scraper 14. In this embodiment, the driving mechanism includes a motor 16 fixedly installed on the top of the flotation tank 12. The output shaft of the motor 16 is fixedly connected to a drive pulley 17. The drive pulley 17 is driven by a driven pulley 19 via a belt 18. The driven pulley 19 is coaxially fixedly connected to a rotating shaft 13. Both ends of the rotating shaft 13 are rotatably connected to the flotation tank 12. The rotating shaft 13 is fixedly connected to the scraper 14.

[0038] The operating principle of this device is as follows: When flotation is required, the slurry is first introduced into the flotation tank 12. The blower 1 and the motor 16 are started. The blower 1 delivers high-pressure air through the air inlet pipe 2, the fixed pipe 4, the first connecting pipe 22, and the second connecting pipe 23 to the first frame pipe 20 and the second frame pipe 21, and sprays it out from the first nozzle 9 and the second nozzle 10, thereby greatly increasing the air content in the slurry and generating a large number of bubbles under the action of the reagents. The slurry rotates under the action of the first nozzle 9 and the second nozzle 10. During the rotation, the minerals and bubbles adhere to each other faster. Then, the bubbles move upward with the minerals they adhere to until they reach the upper surface of the slurry, forming foam. The foam is scraped into the foam box 15 by the scraper 14 driven by the motor 16, thus facilitating the next process.

[0039] In summary, the high-pressure slurry bubble rotary conveying device and flotation machine provided by this apparatus, through the arrangement of the first frame tube 20 and the first nozzle 9, allows a large amount of high-pressure air to be directly introduced into the slurry during flotation, thereby improving the efficiency of bubble generation during the flotation process. In addition, through the arrangement of multiple sets of first nozzles 9, the first nozzles 9 can drive the slurry to flow while generating a large number of bubbles, thereby further accelerating the adhesion of minerals with poor hydrophilicity to bubbles. Through the arrangement of the second frame tube 21 and the second nozzle 10, this apparatus can not only further accelerate the rotational flow of the slurry, but also prevent mineral powder from settling downwards under the influence of its own gravity.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A high-pressure slurry bubble rotary conveying device, characterized in that, It includes an air intake pipe (2), a first frame pipe (20) is connected to the air intake pipe (2), and several or several sets of first nozzles (9) are fixedly connected and connected to the first frame pipe (20). The nozzle of the first nozzle (9) is oriented to the left or right of the center of the first frame pipe (20).

2. The high-pressure slurry bubble rotary conveying device according to claim 1, characterized in that, The first frame tube (20) is rectangular. The first frame tube (20) includes a first side tube (3), a third side tube (6), a second side tube (5), and a fourth side tube (7) that are parallel to each other. The first side tube (3), the second side tube (5), the third side tube (6), and the fourth side tube (7) are fixedly connected end to end and connected in sequence.

3. The high-pressure slurry bubble rotary conveying device according to claim 2, characterized in that, The air outlet of the air inlet pipe (2) is fixedly connected to and connected to a fixed pipe (4). The fixed pipe (4) passes through the center of the first frame pipe (20). Two first connecting pipes (22) are fixedly connected to and connected to the fixed pipe (4). The ends of the two first connecting pipes (22) away from the fixed pipe (4) are fixedly connected to and connected to the middle of the first side pipe (3) and the third side pipe (6) respectively. The first connecting pipes (22) are located above the first frame pipe (20).

4. The high-pressure slurry bubble rotary conveying device according to claim 2, characterized in that, The first frame tube (20) is provided with four sets of first nozzles (9). These four sets of first nozzles (9) are respectively located at the end of the first side tube (3) near the fourth side tube (7), the end of the second side tube (5) near the first side tube (3), the end of the third side tube (6) near the second side tube (5), and the end of the fourth side tube (7) near the third side tube (6). The nozzle of the first nozzle (9) on the first side tube (3) faces the third side tube (6), the nozzle of the first nozzle (9) on the second side tube faces the fourth side tube (7), the nozzle of the first nozzle (9) on the third side tube (6) faces the first side tube (3), and the nozzle of the first nozzle (9) on the fourth side tube (7) faces the second side tube (5).

5. The high-pressure slurry bubble rotary conveying device according to claim 4, characterized in that, The first set of nozzles (9) shortens sequentially from the end of their corresponding side pipes to the middle.

6. The high-pressure slurry bubble rotary conveying device according to claim 5, characterized in that, Below the first frame tube (20), there is a second frame tube (21) with the same structure as the first frame tube (20). The bottom of the fixed tube (4) is fixedly connected to and connected to two second connecting tubes (23). The end of the second connecting tube (23) away from the fixed tube (4) is fixedly connected to and connected to the second frame tube (21). The second connecting tube (23) is located below the second frame tube (21).

7. The high-pressure slurry bubble rotary conveying device according to claim 6, characterized in that, The second frame tube (21) is fixedly connected to and connected to four sets of second nozzles (10) with the same structure and installation position as the first nozzle (9). The nozzles of the second nozzles (10) are tilted upward.

8. The high-pressure slurry bubble rotary conveying device according to claim 7, characterized in that, The upward tilt angle of the nozzle of the second nozzle (10) is 15°.

9. A flotation machine using the high-pressure slurry bubble rotary conveying device according to any one of claims 1-8, comprising a flotation box (12), a scraper (14) that can be driven to rotate by a driving mechanism being provided on the top of the flotation box (12), and a froth box (15) fixedly installed on the front side of the flotation box (12), characterized in that, The first frame tube (20) is fixedly installed inside the flotation box (12), and both the left and right sides of the first frame tube (20) are fixedly connected to the flotation box (12).

10. The flotation machine according to claim 9, characterized in that, The drive mechanism includes a motor (16) fixedly installed on the top of the flotation tank (12). The output shaft of the motor (16) is fixedly connected to a drive pulley (17). The drive pulley (17) is driven by a belt (18) and connected to a driven pulley (19). The driven pulley (19) is coaxially fixedly connected to a rotating shaft (13). The two ends of the rotating shaft (13) are rotatably connected to the flotation tank (12). The rotating shaft (13) is fixedly connected to a scraper (14).

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