Automatic control device for liquid level of ore pulp tank of flotation machine

Abstract

The utility model relates to the related technical field of automatic liquid level control, in particular to an automatic liquid level control device for an ore pulp tank of a flotation machine. The two sides of the top of the machine box are fixedly connected with trapezoidal plates correspondingly, and two first rotating shafts are arranged between the two trapezoidal plates. Under the matching action of a trapezoidal plate, a first rotating shaft, flotation blades, a connecting plate, a fixing sleeve, universal wheels, a power mechanism and a telescopic mechanism, a user can adjust the size of a gap between the flotation blades and the machine box according to requirements, so that ore pulp floating in the machine box can be discharged when the flotation blades rotate, and the flotation efficiency is improved. The automatic control device for the liquid level of the ore pulp tank of the flotation machine solves the problems that an existing automatic control device for the liquid level of the ore pulp tank of the flotation machine does not have the function of adjusting a gap between a stirring mechanism and a machine box, so that the gap between the stirring mechanism and the machine box is too large, and floating ore pulp cannot be discharged from the interior of the machine box easily.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level automatic control, and specifically relates to an automatic liquid level control device for a pulp tank of a flotation machine. Background Technique

[0002] With the rapid development of social economy, there are a large number of places in enterprise workshops that require liquid level detection and automatic control. Due to the vast differences in production environments, there are also many differences in the media and temperatures of various water tanks. Existing control means for liquid level detection include ultrasonic, radar, magnetic float level gauges, or float ball level switches.

[0003] The utility model patent with the publication number of CN214487374U discloses an automatic liquid level control device for a pulp tank of a flotation machine, belonging to the technical field of liquid level automatic control. It aims to solve the problems in the prior art that the cost of liquid level detection is high and it is difficult to achieve automatic liquid level control. The liquid level of the existing pulp tank of the flotation machine basically depends on the staff to observe and then replenish water, and there is no way to accurately control the water level. It includes a pulp tank. An immersion sensor is fixedly installed inside the side plate of the pulp tank opposite to the water tank. An alarm lamp is installed outside the pulp tank. An AC contactor hole is provided on the AC controller. Three induction wire holes are provided on the liquid level relay. The liquid level relay is electrically connected to the water pump through a power cord. This automatic liquid level control device for the pulp tank of the flotation machine can adjust the input current by setting an AC controller to make the magnitude of the current suitable for the power of the relay. By setting induction points at different positions, the liquid level height inside the pulp tank can be accurately monitored in real time. By setting an immersion sensor and an alarm lamp, when the water level is too high and the liquid level relay fails, the staff can discover it in time, solving the problems of difficult accurate control of the liquid level of the pulp tank of the flotation machine and wasting manpower.

[0004] However, the above patent still has deficiencies: Although this patent solves the problems of difficult accurate control of the liquid level of the pulp tank of the flotation machine and wasting manpower, it does not have the function of adjusting the gap between the stirring mechanism and the chassis, resulting in too large a gap between the stirring mechanism and the chassis, and it is easy to occur that the floating pulp cannot be discharged from the inside of the chassis. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an automatic liquid level control device for a pulp tank of a flotation machine to solve the problem that the existing automatic liquid level control device for a pulp tank of a flotation machine does not have the function of adjusting the gap between the stirring mechanism and the chassis, resulting in too large a gap between the stirring mechanism and the chassis, and it is easy to occur that the floating pulp cannot be discharged from the inside of the chassis as mentioned in the above background technique.

[0006] The technical solution of the utility model is as follows:

[0007] An automatic control device for the pulp tank liquid level of a flotation machine, comprising: a chassis; trapezoidal plates are fixedly connected to both sides of the top of the chassis, two first rotating shafts are arranged between the two trapezoidal plates, and four flotation blades are arranged on the outer surfaces of the first rotating shafts. Three connecting plates are fixedly connected to one side of each flotation blade close to the first rotating shaft. One end of each connecting plate far from the flotation blade is fixedly connected to a fixed sleeve, and the fixed sleeves are respectively fixedly connected to the first rotating shafts. Universal wheels with braking functions are fixedly connected to the four corners of the bottom of the chassis; a power mechanism for controlling the synchronous rotation of the two first rotating shafts is arranged at one end of the first rotating shaft; a telescopic mechanism for adjusting the distance between the flotation blade and the chassis is arranged at the center of the top of the chassis.

[0008] Preferably, the power mechanism includes: one end of the first rotating shaft penetrates through the trapezoidal plate and extends to the worm gear. Stroke grooves adapted to each other are opened at the trapezoidal plates close to the first rotating shaft. The worm gear is fixedly connected to the first rotating shaft, and a worm is meshed with the bottom of each worm gear; a double-shaft motor is arranged between the two worms, the double-shaft motor is fixedly connected to the chassis, one end of each worm close to the double-shaft motor is fixedly connected to the output end of the double-shaft motor, and the other end of each worm far from the double-shaft motor is rotatably connected to a fixed plate, and the fixed plates are respectively fixedly connected to the chassis.

[0009] Preferably, the telescopic mechanism includes: a hydraulic cylinder is arranged at the center of the top of the chassis, a first support plate is fixedly connected to the bottom of the hydraulic cylinder, cross beams are fixedly connected to both sides of the first support plate, and the two ends of the cross beams are respectively fixedly connected to the trapezoidal plates; three slide rails are arranged at the bottom of the first rotating shaft, and both ends of the slide rails are fixedly connected to the chassis. A moving frame is slidably connected to each slide rail close to the first rotating shaft, and the first rotating shafts are respectively rotatably connected to the moving frames; the telescopic ends of the hydraulic cylinders are fixedly connected to the tops of two of the moving frames through a linkage mechanism.

[0010] Preferably, the linkage mechanism includes: two linkage blocks are fixedly connected to the tops of two of the moving frames, a second rotating shaft is fixedly connected between the two linkage blocks, a linkage rod is rotatably connected to the outer surface of the center of the second rotating shaft, and the other end of the linkage rod far from the second rotating shaft is rotatably connected to a third rotating shaft; both ends of the third rotating shaft are fixedly connected to a linkage frame, and the linkage frame is fixedly connected to the telescopic end of the hydraulic cylinder.

[0011] Preferably, moving blocks are fixedly connected to the bottoms of the moving frames, and sliders are fixedly connected to both sides of the moving blocks. Slide grooves adapted to each other are opened at the slide rails close to the moving blocks and the sliders.

[0012] Preferably, level gauges are provided on both sides of the hydraulic cylinder. The level gauges are fixedly connected to the second support plates respectively, and the second support plates are fixedly connected to the cross beam. A controller is fixedly connected to one side of the chassis. A liquid discharge port is formed on the side of the chassis close to the controller. An electromagnetic valve is arranged inside the liquid discharge port. The level gauges and the electromagnetic valve are electrically connected to the controller.

[0013] Preferably, collection boxes are fixedly connected to both sides of the chassis. Three fixing rods are fixedly connected to the inside of each collection box. One end of each fixing rod away from the collection box is fixedly connected to the chassis.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] First, through the cooperation of the trapezoidal plate, the first rotating shaft, the flotation blades, the connecting plate, the fixed sleeve, the universal wheels, the power mechanism and the telescopic mechanism, the user can adjust the gap between the flotation blades and the chassis according to needs, so that when the flotation blades rotate, the pulp floating inside the chassis can be discharged. This solves the problem that the existing automatic control device for the pulp tank liquid level of the flotation machine does not have the function of adjusting the gap between the stirring mechanism and the chassis, resulting in too large a gap between the stirring mechanism and the chassis, and it is easy to occur that the floating pulp cannot be discharged from the inside of the chassis.

[0016] Second, through the cooperation of the trapezoidal plate, the first rotating shaft, the flotation blades, the connecting plate, the fixed sleeve, the universal wheels, the power mechanism and the telescopic mechanism, the liquid level height inside the chassis can be monitored in real time. And when the liquid level is too high, the excess pulp inside the chassis can be automatically discharged to the outside of the chassis, which is convenient for the user to control the liquid level height inside the chassis and improves the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of an automatic control device for the pulp tank liquid level of a flotation machine of the present utility model;

[0018] Figure 2 is a side sectional structural schematic diagram of an automatic control device for the pulp tank liquid level of a flotation machine of the present utility model;

[0019] Figure 3 is for the Figure 2 enlarged structural schematic diagram at A in the present utility model;

[0020] Figure 4 is a structural schematic diagram of the power mechanism of the present utility model;

[0021] Figure 5Structural schematic diagram of the telescopic mechanism of the present utility model;

[0022] Figure 6 Structural schematic diagram of the connection between the liquid level gauge and the second support plate of the present utility model.

[0023] In the figure:

[0024] 1. Chassis; 2. Trapezoidal plate; 3. First rotating shaft; 4. Flotation blade; 5. Connecting plate; 6. Fixed sleeve; 7. Universal wheel; 8. Power mechanism; 9. Telescopic mechanism; 10. Worm gear; 11. Stroke groove; 12. Worm; 13. Biaxial motor; 14. Fixed plate; 15. Hydraulic cylinder; 16. First support plate; 17. Cross beam; 18. Slide rail; 19. Moving frame; 20. Linkage mechanism; 21. Linkage block; 22. Second rotating shaft; 23. Linkage rod; 24. Third rotating shaft; 25. Linkage frame; 26. Moving block; 27. Slide block; 28. Slide groove; 29. Liquid level gauge; 30. Second support plate; 31. Controller; 32. Drain port; 33. Solenoid valve; 34. Collection box; 35. Fixed rod. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 6 , the present utility model details the above technical solutions through the following embodiments:

[0027] An automatic control device for the pulp tank liquid level of a flotation machine, comprising: a chassis 1; trapezoidal plates 2 are fixedly connected to both sides of the top of the chassis 1, and two first rotating shafts 3 are arranged between the two trapezoidal plates 2. Four flotation blades 4 are arranged on the outer surfaces of the first rotating shafts 3. Three connecting plates 5 are fixedly connected to one side of each flotation blade 4 close to the first rotating shaft 3. One end of each connecting plate 5 away from the flotation blade 4 is fixedly connected to a fixed sleeve 6, and the fixed sleeves 6 are respectively fixedly connected to the first rotating shafts 3. Universal wheels 7 with braking functions are fixedly connected to the four corners of the bottom of the chassis 1; a power mechanism 8 for controlling the synchronous rotation of the two first rotating shafts 3 is arranged at one end of the first rotating shaft 3; a telescopic mechanism 9 for adjusting the distance between the flotation blade 4 and the chassis 1 is arranged at the center of the top of the chassis 1. When the power mechanism 8 is started, the power mechanism 8 drives the first rotating shaft 3 to rotate. While the first rotating shaft 3 rotates, it drives the fixed sleeve 6, the fixed sleeve 6 drives the connecting plate 5, and the connecting plate 5 drives the flotation blade 4, so that the flotation blade 4 makes a circumferential movement with the first rotating shaft 3 as the center. While the flotation blade 4 makes a circumferential movement, it can scrape the pulp floating inside the chassis 1 out of the chassis 1, thereby achieving the flotation function.

[0028] As Figure 4 shown, the power mechanism 8 includes: one end of the first rotating shaft 3 penetrates through the trapezoidal plate 2 and extends to the worm gear 10. Stroke grooves 11 adapted to each other are opened at the positions of the trapezoidal plates 2 close to the first rotating shaft 3. The worm gear 10 is fixedly connected to the first rotating shaft 3, and a worm 12 is meshed with the bottom of each worm gear 10; a double-shaft motor 13 is arranged between the two worms 12, and the double-shaft motor 13 is fixedly connected to the chassis 1. One end of each worm 12 close to the double-shaft motor 13 is fixedly connected to the output end of the double-shaft motor 13. One end of each worm 12 away from the double-shaft motor 13 is rotatably connected to a fixed plate 14, and the fixed plates 14 are respectively fixedly connected to the chassis 1. When the double-shaft motor 13 is started, the output end of the double-shaft motor 13 drives the worm 12, and the worm 12 rotates by itself through the cooperation of the fixed plate 14. While the worm 12 rotates, it drives the worm gear 10, and the worm gear 10 drives the first rotating shaft 3 to rotate.

[0029] As Figure 3 and Figure 4As shown in the figure, the telescopic mechanism 9 includes: a hydraulic cylinder 15 is arranged at the center of the top of the chassis 1, the bottom of the hydraulic cylinder 15 is fixedly connected with a first support plate 16, both sides of the first support plate 16 are fixedly connected with cross beams 17, and both ends of the cross beams 17 are respectively fixedly connected with trapezoidal plates 2; three slide rails 18 are arranged at the bottom of the first rotating shaft 3, both ends of the slide rails 18 are fixedly connected with the chassis 1, and movable frames 19 are slidably connected near the first rotating shaft 3 of the slide rails 18, and the first rotating shaft 3 is rotatably connected with the movable frames 19; the tops of two of the movable frames 19 are fixedly connected with the telescopic ends of the hydraulic cylinder 15 through a linkage mechanism 20. When the hydraulic cylinder 15 is started, the telescopic end of the hydraulic cylinder 15 drives the movable frame 19 while telescoping. The movable frame 19 slides through the cooperation of the slide rails 18. While the movable frame 19 slides, it drives the first rotating shaft 3, and the first rotating shaft 3 drives the flotation blades 4 through the cooperation of the fixed sleeve 6 and the connecting plate 5, so as to adjust the gap size between the flotation blades 4 and the chassis 1.

[0030] As Figure 5 shown in the figure, the linkage mechanism 20 includes: two linkage blocks 21 are fixedly connected to the tops of two of the movable frames 19, a second rotating shaft 22 is fixedly connected between the two linkage blocks 21, linkage rods 23 are rotatably connected to the outer surfaces of the centers of the second rotating shafts 22, and one ends of the linkage rods 23 far from the second rotating shafts 22 are rotatably connected to third rotating shafts 24; both ends of the third rotating shafts 24 are fixedly connected with a linkage frame 25, the linkage frame 25 is fixedly connected with the telescopic end of the hydraulic cylinder 15. When the telescopic end of the hydraulic cylinder 15 telescopes, it drives the linkage frame 25. The linkage frame 25 drives the third rotating shaft 24, the third rotating shaft 24 drives one end of the linkage rod 23, so that the other end of the linkage rod 23 drives the second rotating shaft 22, the second rotating shaft 22 drives the linkage block 21, and the linkage block 21 drives the movable frame 19, so as to achieve the purpose of horizontally moving the movable frame 19.

[0031] As Figure 3 shown in the figure, movable blocks 26 are fixedly connected to the bottoms of the movable frames 19, sliding blocks 27 are fixedly connected to both sides of the movable blocks 26, and sliding grooves 28 adapted to the movable blocks 26 and the sliding blocks 27 are formed near the slide rails 18. While the movable frames 19 move, they drive the movable blocks 26, and the movable blocks 26 drive the sliding blocks 27 to slide inside the sliding grooves 28 inside the slide rails 18, so as to limit the movable frames 19 and achieve the purpose of horizontally sliding the movable frames 19.

[0032] As Figure 6As shown, level gauges 29 are provided on both sides of the hydraulic cylinder 15. The level gauges 29 are respectively fixedly connected to the second support plates 30, and the second support plates 30 are both fixedly connected to the cross beam 17. One side of the chassis 1 is fixedly connected to a controller 31. A liquid discharge port 32 is provided on the side of the chassis 1 close to the controller 31. An electromagnetic valve 33 is provided inside the liquid discharge port 32. The level gauges 29 and the electromagnetic valve 33 are both electrically connected to the controller 31. The level gauges 29 can monitor the liquid level height inside the chassis 1 in real time and transmit the monitored data to the inside of the controller 31. When the data reaches the maximum threshold, the controller 31 opens the electromagnetic valve 33 inside the liquid discharge port 32 to discharge the excess pulp to the outside of the chassis 1, which can monitor the liquid level height inside the chassis 1 in real time and automatically discharge the excess pulp inside the chassis 1 to the outside of the chassis 1 when the liquid level is too high, facilitating the user to control the liquid level height inside the chassis 1 and improving the practicality.

[0033] As Figure 1 and Figure 2 shown, collection boxes 34 are fixedly connected to both sides of the chassis 1. Three fixing rods 35 are fixedly connected inside the collection boxes 34. One end of the fixing rods 35 far away from the collection boxes 34 is fixedly connected to the chassis 1, which can collect the pulp scraped by the flotation blades 4.

[0034] Working principle: Start the dual-axis motor 13. The output end of the dual-axis motor 13 drives the worm 12. The worm 12 rotates on its own through the cooperation of the fixing plate 14. While the worm 12 rotates, it drives the worm gear 10. The worm gear 10 drives the first rotating shaft 3 to rotate. While the first rotating shaft 3 rotates, it drives the fixed sleeve 6. The fixed sleeve 6 drives the connecting plate 5. The connecting plate 5 drives the flotation blade 4, causing the flotation blade 4 to perform a circumferential motion with the first rotating shaft 3 as the center. While the flotation blade 4 is in circumferential motion, it can scrape out the pulp floating inside the chassis 1 from inside the chassis 1, thereby achieving the flotation function. When the user needs to adjust the gap between the flotation blade 4 and the chassis 1, start the hydraulic cylinder 15. The telescopic end of the hydraulic cylinder 15 drives the linkage frame 25 while telescoping. The linkage frame 25 drives the third rotating shaft 24. The third rotating shaft 24 drives one end of the linkage rod 23, causing the other end of the linkage rod 23 to drive the second rotating shaft 22. The second rotating shaft 22 drives the linkage block 21. The linkage block 21 drives the moving frame 19. While the moving frame 19 moves, it drives the moving block 26. The moving block 26 drives the slider 27 to slide inside the chute 28 of the slide rail 18. While the moving frame 19 slides, it drives the first rotating shaft 3. The first rotating shaft 3 drives the flotation blade 4 through the cooperation of the fixed sleeve 6 and the connecting plate 5, thereby adjusting the gap between the flotation blade 4 and the chassis 1. The user can adjust the gap between the flotation blade 4 and the chassis 1 according to needs, so that when the flotation blade 4 rotates, the pulp floating inside the chassis 1 can be discharged, solving the problem that the existing automatic control device for the pulp tank liquid level of the flotation machine does not have the function of adjusting the gap between the stirring mechanism and the chassis 1, resulting in too large a gap between the stirring mechanism and the chassis 1, and it is easy to occur that the floating pulp cannot be discharged from inside the chassis 1.

[0035] The liquid level gauge 29 can monitor the liquid level height inside the chassis 1 in real time and transmit the monitoring data to the inside of the controller 31. When the data reaches the maximum threshold, the controller 31 opens the solenoid valve 33 inside the drain port 32 to discharge the excess pulp to the outside of the chassis 1. It can monitor the liquid level height inside the chassis 1 in real time and, when the liquid level is too high, can automatically discharge the excess pulp inside the chassis 1 to the outside of the chassis 1, facilitating the user to control the liquid level height inside the chassis 1 and improving the practicability.

[0036] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flotation machine slurry tank liquid level automatic control device, comprising: Chassis (1); The invention is characterized in that trapezoidal plates (2) are fixedly connected to both sides of the top of the chassis (1), two first rotating shafts (3) are arranged between the two trapezoidal plates (2), four flotation blades (4) are arranged on the outer surface of the first rotating shaft (3), three connecting plates (5) are fixedly connected to the side of the flotation blade (4) close to the first rotating shaft (3), the end of the connecting plate (5) away from the flotation blade (4) is fixedly connected to a fixing sleeve (6), the fixing sleeve (6) is respectively fixedly connected to the first rotating shaft (3), and universal wheels (7) with a braking function are fixedly connected to the four corners of the bottom of the chassis (1); One end of the first rotating shaft (3) is provided with a power mechanism (8) for controlling the two first rotating shafts (3) to rotate synchronously; A telescopic mechanism (9) for adjusting the distance between the flotation blade (4) and the chassis (1) is arranged at the top center of the chassis (1).

2. The automatic control device for the level of a flotation machine slurry tank according to claim 1, characterized in that: The power mechanism (8) comprises: One end of the first rotating shaft (3) passes through the trapezoidal plate (2) and extends to the worm wheel (10); a matching travel groove (11) is provided on the trapezoidal plate (2) near the first rotating shaft (3); the worm wheel (10) is fixedly connected to the first rotating shaft (3); and a worm (12) is meshed at the bottom of the worm wheel (10); A dual-axis motor (13) is arranged between the two worm gears (12); the dual-axis motor (13) is fixedly connected to the chassis (1); one end of the worm gear (12) close to the dual-axis motor (13) is fixedly connected to the output end of the dual-axis motor (13); one end of the worm gear (12) away from the dual-axis motor (13) is rotatably connected to a fixing plate (14); and the fixing plate (14) is fixedly connected to the chassis (1).

3. The automatic control device for the level of a flotation machine slurry tank according to claim 1, characterized in that: The telescopic mechanism (9) comprises: A hydraulic cylinder (15) is arranged at the top center of the chassis (1), a first support plate (16) is fixedly connected to the bottom of the hydraulic cylinder (15), a crossbeam (17) is fixedly connected to both sides of the first support plate (16), and both ends of the crossbeam (17) are respectively fixedly connected to the trapezoidal plate (2); Three slide rails (18) are arranged at the bottom of the first rotating shaft (3), both ends of the slide rails (18) are fixedly connected to the chassis (1), and the slide rails (18) are slidably connected to a movable frame (19) near the first rotating shaft (3), and the first rotating shaft (3) is rotatably connected to the movable frame (19); The tops of the two movable frames (19) are fixedly connected to the telescopic ends of the hydraulic cylinders (15) via linkage mechanisms (20).

4. The automatic control device for the liquid level of a flotation machine slurry tank as claimed in claim 3, characterized in that: The linkage mechanism (20) comprises: The tops of the two movable frames (19) are fixedly connected with two linkage blocks (21), a second rotating shaft (22) is fixedly connected between the two linkage blocks (21), a linkage rod (23) is rotatably connected at the central outer surface of the second rotating shaft (22), and one end of the linkage rod (23) away from the second rotating shaft (22) is rotatably connected to a third rotating shaft (24); Both ends of the third rotating shaft (24) are fixedly connected to a linkage frame (25), and the linkage frame (25) is fixedly connected to the telescopic end of the hydraulic cylinder (15).

5. The automatic control device for the liquid level of a flotation machine slurry tank as claimed in claim 3, characterized in that: The bottom of the movable frame (19) is fixedly connected with a movable block (26), both sides of the movable block (26) are fixedly connected with sliding blocks (27), and the slide rail (18) is provided with matching sliding grooves (28) near the movable block (26) and the sliding blocks (27).

6. The automatic control device for the level of a flotation machine slurry tank as claimed in claim 3, characterized in that: Liquid level gauges (29) are provided on both sides of the hydraulic cylinder (15), and the liquid level gauges (29) are respectively fixedly connected to the second support plates (30), and the second support plates (30) are fixedly connected to the crossbeam (17). A controller (31) is fixedly connected to one side of the chassis (1), and a liquid discharge port (32) is provided on a side of the chassis (1) close to the controller (31), and a solenoid valve (33) is provided inside the liquid discharge port (32). The liquid level gauge (29) and the solenoid valve (33) are both electrically connected to the controller (31).

7. The automatic control device for the level of a flotation machine pulp tank as claimed in claim 1, characterized in that: The chassis (1) is fixedly connected to a collection box (34) on both sides, and three fixing rods (35) are fixedly connected inside the collection box (34), and one end of the fixing rod (35) away from the collection box (34) is fixedly connected to the chassis (1).

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