Aeration type stirring device for magnesite flotation slurry

Abstract

The utility model discloses a kind of magnesium ore floatation slurry inflatable type stirring devices, including slurry tank, the inner wall top of slurry tank is provided with positioning structure, the center of positioning structure is fixedly connected with main shaft, the outer wall top of main shaft is fixedly connected with first belt pulley, the outer wall between second belt pulley and first belt pulley is sleeved with belt, the outer wall bottom of main shaft is fixedly connected with rotor, the outer wall of rotor is sleeved with stator, and is gap fit, the outer wall of stator is fixedly connected with first side rod symmetrically, and another end of first side rod is fixedly connected with the inner wall bottom of slurry tank.Through air inlet pipe, air and reagent reach slurry tank bottom directly, ensure that the air content inside is sufficient, the internal gas distribution is more uniform, so that the separation process of slurry and magnesium ore is better, air and reagent are directly transported to slurry tank bottom by air inlet pipe, avoid the problem that bubble floats too fast, distribution is uneven caused by traditional surface aeration.

Description

Technical Field

[0001] This utility model relates to the field of magnesia flotation technology, specifically to an aerated stirring device for magnesia flotation mud. Background Technology

[0002] Magnesia (MgCO3) flotation is an important industrial mineral separation process, mainly used to extract high-purity magnesium ores (magnesite, dolomite, etc.). Aerated and stirred flotation machines, due to their high mineralization capacity and stable froth layer control, have become the core equipment for magnesia flotation. External aeration is a common method to improve flotation efficiency in magnesia mud flotation. However, the aeration process cannot reach the interior of the mud, resulting in insufficient air content within the mud. This makes the separation process between the mud and magnesia difficult and may lead to uneven gas distribution within the mud, affecting the uniform agitation during flotation and thus impacting the flotation effect. Ensuring that the aeration process reaches the interior of the mud is crucial for improving the efficiency of magnesia mud flotation. Therefore, we propose an aerated and stirred flotation mud aeration device for magnesia flotation. Utility Model Content

[0003] The purpose of this invention is to provide an aerated stirring device for magnesium flotation mud to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an aerated stirring device for magnesia flotation mud, comprising a mud tank, a positioning structure provided on the top of the inner wall of the mud tank, a main shaft fixedly connected to the center of the positioning structure, a first pulley fixedly connected to the top of the outer wall of the main shaft, a servo motor fixedly connected to the outer wall of the mud tank, a second pulley fixedly connected to the top of the servo motor, a belt sleeved between the outer walls of the second pulley and the first pulley, a rotor fixedly connected to the bottom of the outer wall of the main shaft, a stator sleeved on the outer wall of the rotor with clearance fit, and first side rods symmetrically fixedly connected to the outer wall of the stator, with the other end of the first side rods fixedly connected to the bottom of the inner wall of the mud tank.

[0005] Preferably, the inner cavity of the main shaft is hollow, and an air inlet pipe is sleeved on the inner wall of the main shaft with clearance fit. A bracket is fixedly connected to the top side wall of the air inlet pipe, and the other end of the bracket is attached to the upper surface of the mud tank and fixedly connected by bolts. A round block is fixedly connected to the bottom of the outer wall of the air inlet pipe. A ball bearing is circumferentially arranged on the outer wall of the round block and is rotatably connected. A circular groove block is provided on the outer wall of the ball bearing and is rotatably connected. A second side rod is symmetrically fixedly connected to the outer wall of the circular groove block, and the other end of the second side rod is fixedly connected to the bottom of the inner wall of the mud tank.

[0006] Preferably, the positioning structure includes a support rod, the top of which is fixedly connected to the inner top of the mud tank, and a sleeve block is fixedly connected to the other end of the support rod. A bearing is fitted into the inner cavity of the sleeve block and is rotatably connected. A rotating block is fitted into the inner cavity of the bearing and is rotatably connected. The center of the rotating block is fixedly connected to the outer wall of the main shaft.

[0007] Preferably, a drain pipe is fixedly connected to the bottom of the side wall of the mud tank, and a valve is installed on the outer wall of the drain pipe.

[0008] Preferably, a drug inlet pipe is fixedly connected to the top of the outer wall of the air inlet pipe.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When performing flotation of magnesia, a hollow main shaft is set up, and an air inlet pipe is sleeved inside the main shaft. The other end of the air inlet pipe is located at the bottom of the mud tank, and a reagent inlet pipe is also connected to one side of the air inlet pipe. When the air inlet pipe is connected to an aeration device, it is convenient to add reagents during stirring. The air and reagents are delivered directly to the bottom of the mud tank through the air inlet pipe, ensuring sufficient air content and more uniform gas distribution inside, which makes the separation process of mud and magnesia better. The air and reagents are directly delivered to the bottom of the mud tank through the air inlet pipe, avoiding the problems of bubbles rising too quickly and uneven distribution caused by traditional surface aeration. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 for Figure 1 Detailed structural diagram of the positioning structure;

[0012] Figure 3 for Figure 1 Detailed structural diagram of the central spindle;

[0013] Figure 4 for Figure 1 Detailed structural diagram of the central spindle;

[0014] In the diagram: 1. Mud tank; 2. Positioning structure; 21. Support rod; 22. Sleeve block; 23. Bearing; 24. Rotating block; 3. Main shaft; 4. First pulley; 5. Belt; 6. Second pulley; 7. Servo motor; 8. Stator; 9. First side rod; 10. Air inlet pipe; 11. Bracket; 12. Round block; 13. Ball bearing; 14. Round groove block; 15. Second side rod; 16. Drug inlet pipe; 17. Drain pipe; 18. Valve; 19. Rotor. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides an aerated stirring device for magnesium flotation mud, including a mud tank 1. A positioning structure 2 is provided on the top of the inner wall of the mud tank 1. A main shaft 3 is fixedly connected to the center of the positioning structure 2. A first pulley 4 is fixedly connected to the top of the outer wall of the main shaft 3. A servo motor 7 is fixedly connected to the outer wall of the mud tank 1. A second pulley 6 is fixedly connected to the top of the servo motor 7. A belt 5 is sleeved between the outer walls of the second pulley 6 and the first pulley 4. A rotor 19 is fixedly connected to the bottom of the outer wall of the main shaft 3. A stator 8 is sleeved on the outer wall of the rotor 19 with a clearance fit. A first side rod 9 is symmetrically fixedly connected to the outer wall of the stator 8, and the other end of the first side rod 9 is fixedly connected to the bottom of the inner wall of the mud tank 1.

[0017] The inner cavity of the main shaft 3 is hollow. An air inlet pipe 10 is sleeved on the inner wall of the main shaft 3 with clearance fit. A bracket 11 is fixedly connected to the top side wall of the air inlet pipe 10. The other end of the bracket 11 is attached to the upper surface of the mud tank 1 and fixedly connected by bolts. A round block 12 is fixedly connected to the bottom of the outer wall of the air inlet pipe 10. A ball bearing 13 is circumferentially arranged on the outer wall of the round block 12 and is rotatably connected. A circular groove block 14 is arranged on the outer wall of the ball bearing 13 and is rotatably connected. A second side rod 15 is symmetrically fixedly connected to the outer wall of the circular groove block 14. The other end of the second side rod 15 is fixedly connected to the bottom of the inner wall of the mud tank 1.

[0018] The positioning structure 2 includes a support rod 21. The top of the support rod 21 is fixedly connected to the top of the inside of the mud box 1. The other end of the support rod 21 is fixedly connected to a sleeve block 22. The inner cavity of the sleeve block 22 is fitted with a bearing 23 and is rotatably connected. The inner cavity of the bearing 23 is fitted with a rotating block 24 and is rotatably connected. The center of the rotating block 24 is fixedly connected to the outer wall of the main shaft 3.

[0019] A drain pipe 17 is fixedly connected to the bottom of the side wall of the mud tank 1, and a valve 18 is installed on the outer wall of the drain pipe 17.

[0020] A drug inlet pipe 16 is fixedly connected to the top of the outer wall of the air inlet pipe 10.

[0021] Working principle: During the flotation of magnesia, the magnesia ore is ground to 0.074-0.15 mm (200-100 mesh) using a ball mill to ensure monomer dissociation. Then, an adjuster such as NaOH is added to adjust the pH, along with an inhibitor and collector, specifically water glass and oleic acid. The mixture is stirred for 5-10 minutes to ensure full adsorption of the reagents. The mixture is then poured into mud tank 1. An air inlet pipe 10 is inserted into the main shaft 3, which is positioned inside the mud tank 1 via a positioning structure 2. A rotating block 24 is fixed to the upper part of the outer wall of the main shaft 3. A bearing 23 is fitted onto the outer wall of the rotating block 24, and a sleeve block 22 is fitted onto the outer wall of the bearing 23. The sleeve block 22 is fixed to the top of the inner wall of the mud tank 1 by a support rod 21. The main shaft 3 is hollow, and air is introduced simultaneously. The diameter of pipe 10 is smaller than that of the main shaft 3 to avoid scratching the inner wall of the main shaft 3 after installation. One end of the air inlet pipe 10 is provided with a flange hole, and a portion is bent and extended to ensure that the rotation process is not affected when connected to the exhaust equipment. The side wall of the air inlet pipe 10 is fixed to the surface of the mud tank 1 by a bracket 11 and bolts. A chemical inlet pipe 16 is provided on the other side of the air inlet pipe 10. The chemical inlet pipe 16 facilitates the addition of chemicals during stirring. The air inlet pipe 10 leads directly to the bottom of the mud tank 1. A round block 12 is fixed to the bottom outer wall of the air inlet pipe 10. The round block 12 can fit with the round groove block 14 at the bottom of the mud tank 1, and a ball bearing 13 is provided inside to provide... To ensure smooth rotation, the circular groove block 14 is fixed by the second side rod 15. A rotor 19 is fixed to the outside of the bottom of the main shaft 3, and a stator 8 is sleeved on the outer wall of the rotor 19 with a clearance fit. The stator 8 is fixed by the first side rod 9. A first pulley 4 is provided at the top of the main shaft 3. The first pulley 4 and the second pulley 6 are connected by a belt 5. The second pulley 6 is driven by a servo motor 7, which is fixed to the outside of the mud tank 1. Through the transmission of the overall structure, the rotor 19 rotates at high speed, forming strong turbulence, which fully mixes the slurry and reagents. The shear force breaks the air into microbubbles. To improve mineralization efficiency, compressed air is injected through the hollow main shaft 3 and air inlet pipe 10 to supplement the amount of bubbles, ensuring uniform bubble distribution. The hydrophobic magnesia particles adsorb the collector on their surface and collide with the bubbles to form a three-phase contact angle, adhering to the bubble surface. Gangue minerals, due to their hydrophilicity, cannot adhere and remain in the slurry. The mineralized bubbles float to the liquid surface, forming a stable foam layer. Then, the magnesia-enriched concentrate foam is scraped out and discharged through the opening on one side of the mud tank 1. Then, valve 18 is opened to open the drain pipe 17, through which the hydrophilic gangue minerals are discharged from the bottom of the mud tank 1. The discharged material is tailings, which can be used for other processing.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnesium flotation mud aeration and stirring device, characterized in that: The system includes a mud tank (1), a positioning structure (2) is provided on the top of the inner wall of the mud tank (1), a main shaft (3) is fixedly connected to the center of the positioning structure (2), a first pulley (4) is fixedly connected to the top of the outer wall of the main shaft (3), a servo motor (7) is fixedly connected to the outer wall of the mud tank (1), a second pulley (6) is fixedly connected to the top of the servo motor (7), a belt (5) is sleeved between the outer walls of the second pulley (6) and the first pulley (4), a rotor (19) is fixedly connected to the bottom of the outer wall of the main shaft (3), a stator (8) is sleeved on the outer wall of the rotor (19) with clearance fit, a first side rod (9) is symmetrically fixedly connected to the outer wall of the stator (8), and the other end of the first side rod (9) is fixedly connected to the bottom of the inner wall of the mud tank (1).

2. The aerated stirring device for magnesia flotation mud according to claim 1, characterized in that: The inner cavity of the main shaft (3) is hollow. An air inlet pipe (10) is sleeved on the inner wall of the main shaft (3) with clearance fit. A bracket (11) is fixedly connected to the top side wall of the air inlet pipe (10). The other end of the bracket (11) is attached to the upper surface of the mud tank (1) and fixedly connected by bolts. A round block (12) is fixedly connected to the bottom of the outer wall of the air inlet pipe (10). A ball bearing (13) is circumferentially arranged on the outer wall of the round block (12) and is rotatably connected. A round groove block (14) is arranged on the outer wall of the ball bearing (13) and is rotatably connected. A second side rod (15) is symmetrically fixedly connected to the outer wall of the round groove block (14). The other end of the second side rod (15) is fixedly connected to the bottom of the inner wall of the mud tank (1).

3. The aerated stirring device for magnesia flotation mud according to claim 1, characterized in that: The positioning structure (2) includes a support rod (21), the top of which is fixedly connected to the top of the inside of the mud box (1), and the other end of the support rod (21) is fixedly connected to a sleeve block (22). The inner cavity of the sleeve block (22) is fitted with a bearing (23) and is rotatably connected. The inner cavity of the bearing (23) is fitted with a rotating block (24) and is rotatably connected. The center of the rotating block (24) is fixedly connected to the outer wall of the main shaft (3).

4. The aerated stirring device for magnesia flotation mud according to claim 1, characterized in that: A drain pipe (17) is fixedly connected to the bottom of the side wall of the mud tank (1), and a valve (18) is installed on the outer wall of the drain pipe (17).

5. The aerated stirring device for magnesia flotation mud according to claim 2, characterized in that: A drug inlet pipe (16) is fixedly connected to the top of the outer wall of the air inlet pipe (10).

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