Fly ash flotation separation and recovery device

Abstract

The utility model discloses a fly ash flotation separation and recovery device which comprises a flotation box. A connecting pipe is arranged in the middle of the bottom of the flotation box, a driven gear is fixedly connected to the outer side of the lower end of the connecting pipe, a driving gear is connected to one side of the driven gear in an engaged mode, a transverse air outlet pipe is fixedly connected to the upper end of the connecting pipe, and a longitudinal air outlet pipe is fixedly connected to the middle of the top face of the transverse air outlet pipe. Wherein a backflow outflow pipe is arranged on one side of the flotation box, and a square flotation pool is arranged on one side of the backflow outflow pipe; a sliding groove is formed in one side of the inner wall of the square flotation tank, the top face of the sliding groove is fixedly connected with a scraping plate, a rotating rod is in lap joint with one side of the bottom face of the sliding groove, reciprocating movement of the scraping plate is conveniently controlled, foam is promoted to enter the collecting box, and therefore the requirement for flotation separation and recycling of the coal ash is met; bubbles can uniformly appear at the transverse air outlet and the longitudinal air outlet conveniently, so that more particles have an opportunity to be attached to the bubbles, and the flotation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fly ash processing technology, specifically to a fly ash flotation separation and recovery device. Background Technology

[0002] Fly ash flotation plays a significant role in resource recycling, environmental benefits, economic benefits, and technical feasibility. Through fly ash flotation, the carbon particles and ash particles in fly ash can be effectively separated, improving resource utilization, reducing production costs, and reducing waste emissions, thus achieving a win-win situation for both economic and environmental benefits.

[0003] Patent document CN213194150U discloses a multi-stage flotation separation device for fly ash, including a flotation tank. A sealed box is located at the bottom of the flotation tank and is fixedly connected to it. A motor is located inside the sealed box and is also fixedly connected to it. A flotation mechanism is located at the top of the motor. The flotation mechanism includes a sealing sleeve located inside the flotation tank, penetrating the tank and extending into its interior. A rotating sleeve is located inside the sealing sleeve. The motor output shaft drives the rotating sleeve to rotate, which in turn rotates a rotating plate. This rotating plate moves along the flotation tank, causing the air outlet pipe at the top of the rotating plate to rotate. Simultaneously, air is discharged from the exhaust port, allowing it to be evenly distributed at the bottom of the flotation tank. This ensures that the air bubbles discharged from the exhaust port are evenly distributed inside the flotation tank, improving the flotation separation effect. However, this patent still has the following problems in practical use:

[0004] This multi-stage flotation separation device for fly ash achieves uniform air distribution at the bottom of the flotation tank by setting up a rotating plate, cavity, and air outlet. However, the device is difficult to separate a stable foam layer from the flotation machine during use, resulting in low separation efficiency. Furthermore, during use, air bubbles preferentially exit from the air outlet near the one-way valve on the rotating plate, leading to uneven air output and affecting flotation efficiency. Therefore, the device has poor applicability.

[0005] A fly ash flotation separation and recovery device is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a fly ash flotation separation and recovery device to solve the problem mentioned in the background art. The current multi-stage flotation separation device for fly ash achieves the effect of uniform air distribution at the bottom of the flotation box by setting a rotating plate, cavity and air outlet. However, the separation device is difficult to separate the stable foam layer from the flotation machine during use, resulting in low separation efficiency. In addition, when the rotating plate is in use, the air bubbles are preferentially discharged from the air outlet near the one-way valve of the rotating plate, resulting in uneven air output from the rotating plate, which affects the flotation efficiency. Therefore, the applicability of the separation device is poor.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fly ash flotation separation and recovery device, comprising a flotation tank;

[0008] The bottom of the flotation tank is fixedly connected to a mounting frame, and a motor is fixedly installed on one side of the bottom of the mounting frame, and an air pump is fixedly installed on the other side of the bottom of the mounting frame. A reflux pump is fixedly installed on one side of the outer wall of the flotation tank.

[0009] Also includes:

[0010] A sealing ring is fixedly connected to the middle of the bottom of the flotation tank, and a connecting pipe is rotatably connected to the middle of the sealing ring. A driven gear is fixedly connected to the outer side of the lower end of the connecting pipe, and a driving gear is meshed with one side of the driven gear. A transverse air outlet pipe is fixedly connected to the upper end of the connecting pipe, and a circular flotation cell is provided on the outer side of the transverse air outlet pipe. A transverse air outlet is opened at the top of the transverse air outlet pipe, and a longitudinal air outlet pipe is fixedly connected to the middle of the top surface of the transverse air outlet pipe. A longitudinal air outlet is opened on the outer side of the longitudinal air outlet pipe.

[0011] The flotation tank has a return inflow pipe fixedly connected to one side of the lower end, a return outflow pipe is provided on one side of the return inflow pipe, a square flotation cell is provided on one side of the return outflow pipe, and a collection box is fixedly connected to one side of the upper end of the flotation tank.

[0012] The square flotation tank has a movable trough on one side of its inner wall, and a sliding trough is slidably connected to the middle of the movable trough. A scraper is fixedly connected to the top surface of the sliding trough, and a sliding block is slidably connected to the middle of the bottom surface of the sliding trough. A rotating rod is rotatably connected to the bottom of the sliding block, and a threaded rod is threaded to one end of the rotating rod. A limit nut is threaded to the outer side of the threaded rod.

[0013] Preferably, the lower end of the connecting pipe passes through the mounting bracket and is rotatably connected to the air pump, and the lower end of the drive gear passes through the mounting bracket and is fixedly connected to the motor, which facilitates the positioning of the connecting pipe.

[0014] Preferably, the inner side of the transverse air outlet duct is configured in a funnel shape to facilitate uniform gas distribution.

[0015] Preferably, the reflux inflow pipe is connected to the reflux outflow pipe via a reflux pump, and the upper end of the reflux outflow pipe passes through the upper end of the flotation box and connects to the square flotation cell, which facilitates the positioning of the reflux outflow pipe.

[0016] Preferably, the square flotation cell is located at the top of the circular flotation cell, and the moving grooves are symmetrically located on both sides of the inner wall of the square flotation cell. The two ends of the sliding groove are slidably connected to the moving grooves on both sides of the square flotation cell, which facilitates the limiting of the sliding grooves.

[0017] Preferably, the sliding block overlaps with the middle of the sliding groove, and the threaded rod is fixedly connected to the middle of the top of the longitudinal air outlet pipe, which facilitates the positioning of the threaded rod.

[0018] Preferably, the inner side of the rotating rod away from the sliding block is provided with a positive thread, and the inner side of the limiting nut is provided with a reverse thread, which facilitates the positioning of the rotating rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This fly ash flotation separation and recovery device facilitates the control of the reciprocating movement of the scraper, promotes the entry of foam into the collection box, and adjusts the height of the rotating rod by the limiting nut, thereby meeting the needs of fly ash flotation separation and recovery. Furthermore, by setting up a transverse air outlet pipe, a transverse air outlet, a longitudinal air outlet pipe, and a longitudinal air outlet, it is convenient for bubbles to appear evenly at the transverse and longitudinal air outlets, allowing more particles to attach to the bubbles and improving flotation efficiency. The specific details are as follows:

[0020] 1. This fly ash flotation separation and recovery device, by setting a threaded rod, a limiting nut, a rotating rod, a sliding block, a sliding groove, a moving groove, and a scraper at the top of the longitudinal air outlet pipe, facilitates the control of the reciprocating movement of the scraper, promotes the entry of foam into the collection box, and adjusts the height of the rotating rod by the limiting nut, thereby separating the sliding block from the sliding groove and keeping the scraper stationary. This meets the needs when the foam is small in the initial stage of fly ash flotation, thus making the fly ash flotation separation and recovery device more practical.

[0021] 2. This fly ash flotation separation and recovery device, by setting up a horizontal air outlet, a horizontal air outlet, a vertical air outlet, and a vertical air outlet, facilitates the uniform distribution of gas in the horizontal and vertical air outlets, and ensures that bubbles appear evenly in the horizontal and vertical air outlets. This increases the contact opportunities between the evenly distributed bubbles and the fly ash particles, allowing more particles to adhere to the bubbles and improving flotation efficiency. Therefore, this fly ash flotation separation and recovery device is more practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;

[0023] Figure 2 This is a top view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the longitudinal air outlet duct structure of this utility model;

[0025] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the limiting nut structure of this utility model.

[0027] In the diagram: 1. Flotation tank; 2. Mounting frame; 3. Motor; 4. Drive gear; 5. Driven gear; 6. Connecting pipe; 7. Sealing ring; 8. Air pump; 9. Horizontal air outlet pipe; 10. Horizontal air outlet; 11. Longitudinal air outlet pipe; 12. Longitudinal air outlet; 13. Circular flotation cell; 14. Return flow pipe; 15. Return pump; 16. Return flow outlet pipe; 17. Square flotation cell; 18. Moving trough; 19. Sliding trough; 20. Scraper; 21. Sliding block; 22. Rotating rod; 23. Threaded rod; 24. Limit nut; 25. Collection box. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-5This utility model provides a technical solution: a fly ash flotation separation and recovery device, including a flotation tank 1; a mounting frame 2 is fixedly connected to the bottom of the flotation tank 1, and a motor 3 is fixedly installed on one side of the bottom of the mounting frame 2, and an air pump 8 is fixedly installed on the other side of the bottom of the mounting frame 2, and a reflux pump 15 is fixedly installed on one side of the outer wall of the flotation tank 1; it also includes: a sealing ring 7 is fixedly connected to the middle of the bottom of the flotation tank 1, and a connecting pipe 6 is rotatably connected to the middle of the sealing ring 7, and a driven gear 5 is fixedly connected to the outer side of the lower end of the connecting pipe 6, and a driven gear 5 is fixedly connected to one side of the driven gear 5. A drive gear 4 is meshed with the connecting pipe 6, and a transverse air outlet pipe 9 is fixedly connected to the upper end of the connecting pipe 6. A circular flotation cell 13 is provided on the outer side of the transverse air outlet pipe 9, and a transverse air outlet 10 is opened at the top of the transverse air outlet pipe 9. A longitudinal air outlet pipe 11 is fixedly connected to the middle of the top surface of the transverse air outlet pipe 9, and a longitudinal air outlet 12 is opened on the outer side of the longitudinal air outlet pipe 11. The lower end of the connecting pipe 6 passes through the mounting frame 2 and is rotatably connected to the air pump 8, and the lower end of the drive gear 4 passes through the mounting frame 2 and is fixedly connected to the motor 3. The inner side of the transverse air outlet pipe 9 is set in a funnel shape, such as... Figures 1-3 As shown, by setting the transverse air outlet 9 in a funnel shape, it is easier to promote a more uniform gas pressure at the transverse air outlet 10 on the outside of the transverse air outlet 9 and near the middle transverse air outlet 10. The gas pressure in the middle of the transverse air outlet 9 is balanced by the longitudinal air outlet 11 and the longitudinal air outlet 12, thereby improving the uniformity of gas output, promoting the uniform distribution of bubbles to increase the contact opportunities with fly ash particles, allowing more particles to attach to the bubbles, and improving flotation efficiency. Therefore, this fly ash flotation separation and recovery device is more practical.

[0030] The flotation tank 1 has a reflux inflow pipe 14 fixedly connected to one side of its lower end, a reflux outflow pipe 16 located on one side of the reflux inflow pipe 14, a square flotation cell 17 located on one side of the reflux outflow pipe 16, and a collection box 25 fixedly connected to one side of the upper end of the flotation tank 1. The reflux inflow pipe 14 is connected to the reflux outflow pipe 16 via a reflux pump 15, and the upper end of the reflux outflow pipe 16 passes through the upper end of the flotation tank 1 and connects to the square flotation cell 17. Figure 1 , Figure 2 As shown, the fly ash mixture at the lower end of the flotation tank 1 can be fed into the upper end through the reflux pump 15 for flotation again, thereby improving the effect of fly ash flotation separation and recovery. Therefore, the fly ash flotation separation and recovery device is more practical.

[0031] The square flotation tank 17 has a movable groove 18 on one side of its inner wall, and a sliding groove 19 is slidably connected to the middle of the movable groove 18. A scraper 20 is fixedly connected to the top surface of the sliding groove 19, and a sliding block 21 is slidably connected to the middle of the bottom surface of the sliding groove 19. A rotating rod 22 is rotatably connected to the bottom of the sliding block 21, and a threaded rod 23 is threaded to one end of the rotating rod 22. A limit nut 24 is threaded to the outer side of the threaded rod 23. The square flotation tank 17 is located above the circular flotation tank 13, and the movable grooves 18 are symmetrically located on both sides of the inner wall of the square flotation tank 17. The two ends of the sliding groove 19 are slidably connected to the movable grooves 18 on both sides of the square flotation tank 17. The sliding block 21 overlaps with the middle of the sliding groove 19, and the threaded rod 23 is fixedly connected to the middle of the top of the longitudinal air outlet pipe 11. A forward thread is provided on the inner side of the rotating rod 22 away from the sliding block 21, and a reverse thread is provided on the inner side of the limit nut 24. Figures 1-5 As shown, the sliding groove 19 is driven to slide in the moving groove 18 by the rotating rod 22 through the sliding block 21, so that the sliding groove 19 moves back and forth, thereby scraping the foam at the top of the flotation box 1 into the collection box 25. The height of the rotating rod 22 is adjusted by the limiting nut 24, thereby separating the sliding block 21 from the sliding groove 19 and keeping the scraper 20 stationary. This meets the needs when the foam is small in the early stage of fly ash flotation, thus making the fly ash flotation separation and recovery device more practical.

[0032] Working principle: When using this fly ash flotation separation and recovery device, firstly, by rotating the limiting nut 24, the rotating rod 22 is rotated on the threaded rod 23, and then the sliding groove 19 is moved in the moving groove 18 inside the square flotation cell 17, and the sliding block 21 is engaged with the sliding groove 19. Then, the limiting nut 24 is rotated to limit the position of the rotating rod 22.

[0033] Secondly, by turning on the power supply of the motor 3, the motor 3 drives the drive gear 4 at the top of the mounting frame 2 to rotate. The drive gear 4 drives the connecting pipe 6 to rotate in the middle of the sealing ring 7 at the bottom of the flotation tank 1 through the driven gear 5. Then, the connecting pipe 6 drives the horizontal air outlet 9 and the vertical air outlet 11 to rotate in the circular flotation tank 13. The air pump 8 blows the gas out of the horizontal air outlet 10 and the vertical air outlet 12. At this time, the scraper 20 scrapes the foam into the collection box 25.

[0034] Finally, the mixture at the bottom of the flotation tank 1 is fed into the reflux outlet pipe 16 through the reflux inflow pipe 14 by the reflux pump 15, thereby carrying out further flotation.

[0035] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A fly ash flotation separation and recovery device, comprising a flotation tank (1); The bottom of the flotation tank (1) is fixedly connected to a mounting frame (2), and a motor (3) is fixedly installed on one side of the bottom of the mounting frame (2), and an air pump (8) is fixedly installed on the other side of the bottom of the mounting frame (2), and a reflux pump (15) is fixedly installed on one side of the outer wall of the flotation tank (1). Its features are, Also includes: A sealing ring (7) is fixedly connected to the middle of the bottom of the flotation tank (1), and a connecting pipe (6) is rotatably connected to the middle of the sealing ring (7). A driven gear (5) is fixedly connected to the outer side of the lower end of the connecting pipe (6), and a driving gear (4) is meshed with one side of the driven gear (5). A transverse air outlet pipe (9) is fixedly connected to the upper end of the connecting pipe (6), and a circular flotation tank (13) is provided on the outer side of the transverse air outlet pipe (9). A transverse air outlet (10) is opened at the top of the transverse air outlet pipe (9), and a longitudinal air outlet pipe (11) is fixedly connected to the middle of the top surface of the transverse air outlet pipe (9). A longitudinal air outlet (12) is opened on the outer side of the longitudinal air outlet pipe (11). Among them, a return inflow pipe (14) is fixedly connected to one side of the lower end of the flotation box (1), and a return outflow pipe (16) is provided on one side of the return inflow pipe (14), and a square flotation cell (17) is provided on one side of the return outflow pipe (16), and a collection box (25) is fixedly connected to one side of the upper end of the flotation box (1). Among them, a movable groove (18) is provided on one side of the inner wall of the square flotation tank (17), and a sliding groove (19) is slidably connected in the middle of the movable groove (18). A scraper (20) is fixedly connected to the top surface of the sliding groove (19), and a sliding block (21) is slidably connected in the middle of the bottom surface of the sliding groove (19). A rotating rod (22) is rotatably connected to the bottom of the sliding block (21), and a threaded rod (23) is threaded to one end of the rotating rod (22), and a limit nut (24) is threaded to the outer side of the threaded rod (23).

2. The fly ash flotation separation and recovery device according to claim 1, characterized in that: The lower end of the connecting pipe (6) passes through the mounting bracket (2) and is rotatably connected to the air pump (8), and the lower end of the drive gear (4) passes through the mounting bracket (2) and is fixedly connected to the motor (3).

3. The fly ash flotation separation and recovery device according to claim 1, characterized in that: The inner side of the horizontal air outlet pipe (9) is configured as a funnel shape.

4. The fly ash flotation separation and recovery device according to claim 1, characterized in that: The reflux inflow pipe (14) is connected to the reflux outflow pipe (16) via the reflux pump (15), and the upper end of the reflux outflow pipe (16) passes through the upper end of the flotation box (1) and is connected to the square flotation cell (17).

5. The fly ash flotation separation and recovery device according to claim 1, characterized in that: The square flotation cell (17) is located at the top of the circular flotation cell (13), and the moving grooves (18) are symmetrically located on both sides of the inner wall of the square flotation cell (17). The two ends of the sliding groove (19) are slidably connected to the moving grooves (18) on both sides of the square flotation cell (17).

6. The fly ash flotation separation and recovery device according to claim 1, characterized in that: The sliding block (21) overlaps with the sliding groove (19) in the middle, and the threaded rod (23) is fixedly connected to the middle of the top of the longitudinal air outlet pipe (11).

7. The fly ash flotation separation and recovery device according to claim 1, characterized in that: The rotating rod (22) has a positive thread on the inner side of the end away from the sliding block (21), and the limiting nut (24) has a reverse thread on the inner side.

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