Mining backfill material preparation device based on tailings sand recovery

Abstract

The utility model relates to mechanical technical field discloses mining backfill material preparation device based on tailing sand recovery, including support, the inside fixed connection spin -dry outer shell of support, the inside installation of spin -dry outer shell has spin -dry subassembly, the outside fixed connection of support has shell no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a mining backfill preparation device based on tailings sand recovery. Background Technology

[0002] Mining backfill material made from tailings sand is mainly used for filling goaf areas in mines. It can effectively control surface subsidence, prevent mine collapse, and ensure the safety of mining operations. Its advantages include realizing the resource utilization of tailings sand, reducing environmental pollution caused by solid waste accumulation, lowering the production cost of backfill material, and improving the overall ecological and economic benefits of the mine.

[0003] Existing mining backfill preparation equipment based on tailings sand recovery mostly processes tailings sand through crushing, screening, dewatering and other processes, and then adds cementitious materials in proportion to mix and make backfill. Some equipment is equipped with a simple stirring device for raw material mixing.

[0004] However, tailings sand treated by existing equipment is prone to clumping due to uneven moisture distribution. Clumped tailings sand will lead to uneven strength of backfill material, reduce filling effect and increase engineering risks. Therefore, a mining backfill material preparation device based on tailings sand recovery is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mining backfill preparation device based on tailings sand recovery, which aims to improve the problem of easy agglomeration of tailings sand in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mining backfill preparation device based on tailings sand recovery includes a support frame, a drying shell fixedly connected inside the support frame, a drying assembly installed inside the drying shell, a first shell fixedly connected to the outside of the support frame, a second shell installed inside the first shell, a stirring assembly installed inside the second shell, a conveying pipe fixedly connected between the drying shell and the second shell, and a heating assembly installed on the outside of the first shell.

[0008] The stirring assembly includes a motor, which is fixedly connected to the top of the outer casing. A rotating shaft is fixedly connected to the output end of the motor, and a bevel gear is fixedly connected to the outer side of the rotating shaft. A bevel gear is rotatably connected to the top of the outer casing. A stirring scraper is installed at the bottom of the bevel gear, and multiple stirring blades are fixedly connected inside the stirring scraper.

[0009] As a further description of the above technical solution:

[0010] The heating assembly includes a water pump, which is fixedly connected to the outside of the bracket. A heating tube is fixedly connected to the output end of the water pump. The heating tube is located between the second outer shell and the first outer shell. A water tank is fixedly connected to the outside of the bracket. The input end of the water pump is fixedly connected to the inside of the water tank. The other end of the heating tube is fixedly connected to the inside of the water tank. A heating rod is installed on the top of the water tank.

[0011] As a further description of the above technical solution:

[0012] The spin-drying assembly includes a spin-drying cylinder, which is installed inside the spin-drying housing. A toothed ring is fixedly connected to the outer side of the spin-drying cylinder. A second motor is fixedly connected to the outer side of the spin-drying housing. A gear is fixedly connected to the output end of the second motor. The gear and the toothed ring mesh with each other.

[0013] As a further description of the above technical solution:

[0014] A circular scraper is fixedly connected inside the stirring scraper, and the circular scraper is fixedly connected to the bottom of the bevel gear two;

[0015] As a further description of the above technical solution:

[0016] A mounting box is fixedly connected to the top of the outer casing 2, and the motor 1, the bevel gear 1, the rotating shaft and the bevel gear 2 are all located inside the mounting box;

[0017] As a further description of the above technical solution:

[0018] An installation shell is fixedly connected to the outer side of the outer casing, and both the water pump and the water tank are installed inside the installation shell;

[0019] As a further description of the above technical solution:

[0020] A discharge pipe is fixedly connected to the bottom of the second outer shell, and a solenoid valve is installed on the outside of the discharge pipe.

[0021] As a further description of the above technical solution:

[0022] A protective box is fixedly connected to the outside of the spin dryer housing, and the motor and the gear are both installed inside the protective box.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the rotation of the motor, the rotating shaft and related bevel gears drive the circular scraper, the stirring scraper and the stirring paddle to work together, which can effectively scrape off the tailings sand adhering to the inner wall of the shell, prevent the tailings sand from adhering and clumping, and at the same time, the tailings sand is conveyed upward during the stirring process, so that the material is stirred more evenly, and the clumped tailings sand is broken up, reducing the occurrence of clumping from the source.

[0025] 2. In this utility model, the water in the water tank can be heated quickly by the heating rod and the water pump, and the hot water is delivered to the heating pipe. On the one hand, the hot water circulation can keep the tailings sand in the stirring at a suitable temperature, reducing the possibility of agglomeration. On the other hand, when the hot water flows through the outer wall of the shell, it will heat the inner wall and accelerate the drying process of the tailings sand. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the mining backfill preparation device based on tailings sand recovery proposed in this utility model;

[0027] Figure 2 This is a cross-sectional schematic diagram of the motor of the mining backfill preparation device based on tailings sand recovery proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the structure of the solenoid valve in the mining backfill preparation device based on tailings sand recovery proposed in this utility model;

[0029] Figure 4 An exploded view of the heating rod of the mining backfill preparation device based on tailings sand recovery proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the agitator of the mining backfill preparation device based on tailings sand recovery proposed in this utility model;

[0031] Figure 6 This is a cross-sectional schematic diagram of the drying cylinder of the mining backfill preparation device based on tailings sand recovery proposed in this utility model;

[0032] Figure 7 for Figure 2 Enlarged view of point A in the middle.

[0033] Legend:

[0034] 1. Support frame; 2. Spin-drying outer shell; 3. Protective box; 4. Motor II; 5. Gear; 6. Gear ring; 7. Spin-drying drum; 8. Conveying pipe; 9. Outer shell I; 10. Outer shell II; 11. Mounting box; 12. Motor I; 13. Rotating shaft; 14. Bevel gear I; 15. Bevel gear II; 16. Stirring scraper; 17. Stirring paddle; 18. Heating tube; 19. Water pump; 20. Water tank; 21. Heating rod; 22. Circular scraper; 23. Mounting shell; 24. Discharge pipe; 25. Solenoid valve. Detailed Implementation

[0035] 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.

[0036] Reference Figure 1 , Figure 2 , Figure 5 and Figure 7 This utility model provides an embodiment of a mining backfill preparation device based on tailings sand recovery, including a support 1. The support 1 serves as the load-bearing foundation of the entire device, providing a stable installation platform for each component. A spin-drying shell 2 is fixedly connected inside the support 1. A spin-drying component is installed inside the spin-drying shell 2, which is specifically used for preliminary dehydration treatment of the recovered wet tailings sand. A shell 9 is fixedly connected to the outside of the support 1. The shell 9 serves as a protective and supportive element. A shell 10 is installed inside the shell 9. The shell 10 is the main place for stirring and further drying the tailings sand. A stirring component is installed inside the shell 10 to break up the tailings sand clumps and ensure that it is stirred evenly. A conveying pipe 8 is fixedly connected between the spin-drying shell 2 and the shell 10. The tailings sand after spin-drying treatment smoothly enters the shell 10 through this conveying pipe 8. A heating component is installed on the outside of the shell 9, which provides heat support for the drying of the tailings sand inside the shell 10.

[0037] The stirring assembly includes a motor 12, which is fixedly connected to the top of the outer casing 10. A rotating shaft 13 is fixedly connected to the output end of the motor 12. When the motor 12 operates, it drives the rotating shaft 13 to rotate. A bevel gear 14 is fixedly connected to the outer side of the rotating shaft 13. The rotation of the rotating shaft 13 synchronously drives the bevel gear 14 to rotate. A bevel gear 15 is rotatably connected to the top of the outer casing 10. The rotation of the bevel gear 14 drives the bevel gear 15 to rotate. A stirring scraper 16 is installed at the bottom of the bevel gear 15. The rotation of the bevel gear 15 drives the stirring scraper 16 to rotate. Multiple stirring paddles 17 are fixedly connected inside the stirring scraper 16. The rotation of the stirring scraper 16... At the same time, the stirring paddle 17 rotates to stir the tailings sand. A circular scraper 22 is fixedly connected inside the stirring scraper 16. The circular scraper 22 rotates synchronously with the stirring scraper 16. The circular scraper 22 is fixedly connected to the bottom of the bevel gear 15. Driven by the bevel gear 15, the circular scraper 22 can scrape off the tailings sand adhering to the top of the inner wall of the outer shell 10. It works with the stirring scraper 16 to better clean the adhering material on the inner wall. The top of the outer shell 10 is fixedly connected to the mounting box 11. The mounting box 11 provides protection and installation space for the internal components. The motor 12, bevel gear 14, rotating shaft 13 and bevel gear 15 are all located inside the mounting box 11.

[0038] Reference Figure 1 , Figure 2 and Figure 4 The heating assembly includes a water pump 19, which is fixedly connected to the outside of the bracket 1. The water pump 19 provides power for water circulation. A heating tube 18 is fixedly connected to the output end of the water pump 19, which delivers water to the heating tube 18 to heat the outer casing 10. The heating tube 18 is located between the outer casing 10 and the first outer casing 9. A water tank 20 is fixedly connected to the outside of the bracket 1. The water tank 20 is used to store water. The input end of the water pump 19 is fixedly connected to the inside of the water tank 20, and the other end of the heating tube 18 is fixedly connected to the inside of the water tank 20. The top of the water tank 20... A heating rod 21 is installed, which can heat the water in the water tank 20 and provide hot water for the entire heating system. The heating rod 21 includes an electric heating wire that generates heat when energized, an insulation layer that isolates the current from the outside, a metal sleeve that protects the internal components and conducts heat, and a lead wire that connects to the power supply. This is existing technology and will not be described in detail hereafter. A mounting shell 23 is fixedly connected to the outside of the outer shell 19. The mounting shell 23 prevents the water pump 19 and the water tank 20 from being affected by external collisions, dust, etc., and ensures their normal operation. The water pump 19 and the water tank 20 are both installed inside the mounting shell 23.

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6The spin-drying assembly includes a spin-drying cylinder 7, which is installed inside the spin-drying outer shell 2. A gear ring 6 is fixedly connected to the outside of the spin-drying cylinder 7. A motor 4 is fixedly connected to the outside of the spin-drying outer shell 2, providing power for the rotation of the spin-drying cylinder 7. A gear 5 is fixedly connected to the output end of the motor 4. When the motor 4 works, it drives the gear 5 to rotate. The gear 5 and the gear ring 6 mesh with each other, and the gear 5 drives the gear ring 6 to rotate. The spin-drying cylinder 7 rotates synchronously, drying the moist tailings sand inside. A discharge pipe 24 is fixedly connected to the bottom of the outer shell 20, and a solenoid valve 2 is installed on the outside of the discharge pipe 24. 5. By controlling the opening and closing of the solenoid valve 25, the discharge time and discharge volume of the backfill can be controlled, which facilitates operation and control of the production process. The solenoid valve 25 includes a solenoid coil energized to generate a magnetic field force, a moving iron core moving under the action of the magnetic field, a valve disc moving with the moving iron core to control the opening and closing of the medium, and a valve body as the main body of the medium flow channel, etc. This is existing technology and will not be described in detail hereafter. A protective box 3 is fixedly connected to the outside of the spin dryer shell 2. The motor 4 and gear 5 are both installed inside the protective box 3. The protective box 3 is used to prevent the motor 4 and gear 5 from being interfered with by external factors during operation.

[0040] Working principle: First, the recovered tailings sand is poured into the inside of the spin dryer 7, and the motor 4 is started. The motor 4 drives the gear 5 to rotate. At this time, the gear 5 drives the gear ring 6 to rotate, which quickly spins the wet tailings sand inside the spin dryer 7. The spin-dried tailings sand enters the inside of the outer shell 10 through the conveying pipe 8.

[0041] To prevent the tailings sand from clumping after drying, motor 12 is started. Motor 12 drives the rotating shaft 13 and bevel gear 14 to rotate, which in turn drives bevel gear 15 to rotate. The rotation of bevel gear 15 causes the circular scraper 22 and the stirring scraper 16 to rotate. The rotation of the stirring scraper 16 drives the stirring paddle 17 to rotate. The stirring scraper 16 and the circular scraper 22 can scrape off the tailings sand adhering to the inner wall of the outer shell 10. The stirring paddle 17 is composed of an inclined plate, which can be conveyed upward during the stirring process, and can be stirred evenly to break up the clumped tailings sand.

[0042] Secondly, during the mixing process, the heating rod 21 and the water pump 19 are started simultaneously. The heating rod 21 can quickly heat the water in the water tank 20, while the water pump 19 can input hot water into the heating pipe 18. The heating pipe 18 returns to the water tank 20 from the bottom along the outer wall of the outer shell 2 10. On the one hand, this can prevent the tailings sand from clumping during the mixing process. On the other hand, it can heat the inner wall of the outer shell 2 10, accelerate the drying of the tailings sand, improve the production efficiency of the backfill material, and save water resources by setting up circulating water.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mining backfill material preparation device based on tailings sand recovery, comprising a support frame (1), characterized in that: The bracket (1) is fixedly connected to the spin-drying shell (2), the spin-drying shell (2) is installed with a spin-drying component, the bracket (1) is fixedly connected to the outer side of the shell first (9), the shell first (9) is installed with the shell second (10), the shell second (10) is installed with a stirring component, the spin-drying shell (2) and the shell second (10) are fixedly connected with a conveying pipe (8), and the outer side of the shell first (9) is installed with a heating component; The stirring assembly includes a motor (12), which is fixedly connected to the top of the outer shell (10). The output end of the motor (12) is fixedly connected to a rotating shaft (13). A bevel gear (14) is fixedly connected to the outside of the rotating shaft (13). A bevel gear (15) is rotatably connected to the top of the outer shell (10). A stirring scraper (16) is installed at the bottom of the bevel gear (15). Multiple stirring blades (17) are fixedly connected inside the stirring scraper (16).

2. The mining backfill preparation device based on tailings sand recovery according to claim 1, characterized in that: The heating assembly includes a water pump (19), which is fixedly connected to the outside of the bracket (1). The output end of the water pump (19) is fixedly connected to a heating tube (18), which is located between the second outer shell (10) and the first outer shell (9). A water tank (20) is fixedly connected to the outside of the bracket (1). The input end of the water pump (19) is fixedly connected to the inside of the water tank (20). The other end of the heating tube (18) is fixedly connected to the inside of the water tank (20). A heating rod (21) is installed on the top of the water tank (20).

3. The mining backfill preparation device based on tailings sand recovery according to claim 1, characterized in that: The spin-drying assembly includes a spin-drying cylinder (7), which is installed inside the spin-drying housing (2). A toothed ring (6) is fixedly connected to the outside of the spin-drying cylinder (7), and a second motor (4) is fixedly connected to the outside of the spin-drying housing (2). A gear (5) is fixedly connected to the output end of the second motor (4), and the gear (5) and the toothed ring (6) mesh with each other.

4. The mining backfill preparation device based on tailings sand recovery according to claim 1, characterized in that: A circular scraper (22) is fixedly connected inside the stirring scraper (16), and the circular scraper (22) is fixedly connected to the bottom of the bevel gear (15).

5. The mining backfill preparation device based on tailings sand recovery according to claim 4, characterized in that: The top of the outer casing 2 (10) is fixedly connected to the mounting box (11), and the motor 1 (12), the bevel gear 1 (14), the rotating shaft (13) and the bevel gear 2 (15) are all located inside the mounting box (11).

6. The mining backfill preparation device based on tailings sand recovery according to claim 2, characterized in that: An mounting shell (23) is fixedly connected to the outside of the outer shell (9), and the water pump (19) and the water tank (20) are both installed inside the mounting shell (23).

7. The mining backfill preparation device based on tailings sand recovery according to claim 1, characterized in that: The bottom of the outer shell (10) is fixedly connected to a discharge pipe (24), and a solenoid valve (25) is installed on the outside of the discharge pipe (24).

8. The mining backfill preparation device based on tailings sand recovery according to claim 3, characterized in that: A protective box (3) is fixedly connected to the outside of the spin dryer shell (2), and the motor (4) and the gear (5) are both installed inside the protective box (3).

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