Device for cleaning tailing filling accident pool

Abstract

The utility model relates to a device for cleaning a tailing filling accident pool, and belongs to the technical field of tailing treatment equipment. According to the technical scheme, a stirring motor (1), a stirring speed reducer (2), a stirring main shaft (3) and stirring blades are sequentially connected, a stirring platform (5) is arranged above a tailing filling accident pool (13), and the stirring blades (4) extend into the tailing filling accident pool (13) through the stirring main shaft (3); the hydraulic oil cylinder (6) is mounted between the stirring platform (5) and the side wall of the tailing filling accident pool (13); and the slurry pump (14) is mounted on one side of the tailing filling accident pool (13). The tailing filling accident pool has the beneficial effects that the effective volume of the tailing filling accident pool is guaranteed, the phenomena that deposited tailings and hardened materials are excavated by adopting an excavator and a manual mode and the volume of the tailing accident pool is recovered are avoided, manpower, material resources, financial resources and production cost are saved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to a device for cleaning up a tailings accident pond, belonging to the technical field of tailings treatment equipment. Background Technology

[0002] With economic development, the demand for mineral products has increased significantly, leading to a larger scale of mining development and a continuous increase in the amount of tailings generated. Mine tailings have always been one of the most difficult problems to manage.

[0003] Currently, there are two types of tailings treatment methods in mines. One is to use surface tailings ponds for storage, where tailings produced by the concentrator are thickened or filtered and then transported to the tailings ponds for storage. Tailings storage can be either dry or wet. The other is to use it for backfilling underground goaf areas, where concentrated tailings from the concentrator are transported directly or mixed with cementing materials to form a backfill slurry for backfilling goaf areas. The backfill slurry can be transported by gravity or by pumping.

[0004] Especially in recent years, with the increasingly severe environmental situation, the preferred method of backfilling mining is to not only reduce ore loss and dilution and effectively maintain the stability of the surrounding rock, but also reduce the discharge of large quantities of solid waste, increase the utilization of mine solid waste, and achieve the goal of protecting the ecological environment. In recent years, the main method of tailings disposal in China has been underground backfilling as the primary approach, supplemented by tailings dam storage.

[0005] During the backfilling process, vertical sand silos are often used to store the concentrated tailings slurry from the beneficiation plant. After prolonged use, the tailings accumulated around the vertical sand silos become severely compacted, significantly reducing the effective volume of the silos. Furthermore, coarser tailings tend to settle and accumulate within the silos, and the compacted material often collapses in lumps. During backfilling, the compacted material and accumulated coarse particles easily cause blockages in the surface sand discharge pipes and the underground backfilling vertical pipes, making unblocking difficult, especially the vertical pipes. This results in high operational risks, long processing times, and significant disruption to the normal operation of the backfilling system. Therefore, it is necessary to periodically clean the vertical sand silos, discharging the coarser tailings and compacted material into the tailings emergency pit.

[0006] The coarser tailings and brittle material discharged into the accident pool settles quickly and cannot be transported by the slurry pump in time, causing them to accumulate in the accident pool. Prolonged accumulation of tailings and brittle material further deteriorates the slurry pump's conveying capacity, ultimately leading to a reduction in the effective volume of the accident pool and pump congestion. This often requires excavators and manual labor to excavate the accumulated tailings and brittle material, restore the accident pool's volume, and disassemble the slurry pump to restore its conveying capacity, resulting in a waste of manpower, material resources, and financial resources, and increased production costs. Summary of the Invention

[0007] The purpose of this invention is to provide a device for cleaning and filling tailings accident ponds. Through the design of triangular and parallel blades, the accumulated tailings and caking material can be better dispersed and thoroughly mixed into a homogeneous tailings slurry. The use of a lifting device can significantly reduce the mixing resistance of the mixing device, prevent motor overload, and prevent the blades from being crushed by accumulated tailings and caking material during prolonged periods of inactivity when the mixing device is about to stop. The effective volume of the tailings accident pond is guaranteed, eliminating the need for excavators and manual labor to dig up the accumulated tailings and caking material and restore the pond's volume. This saves manpower, material resources, financial resources, and production costs, reduces the labor intensity of employees, and solves the aforementioned problems in the background technology.

[0008] The technical solution of this utility model is: a device for cleaning a tailings accident pool, comprising a stirring device, a lifting device, a tailings accident pool, and a slurry pump. The stirring device includes a stirring motor, a stirring reducer, a stirring main shaft, stirring blades, and a stirring platform. The stirring motor and the stirring reducer are installed on the stirring platform. The stirring motor, the stirring reducer, the stirring main shaft, and the stirring blades are connected in sequence. The stirring platform is set above the tailings accident pool. The stirring blades extend into the tailings accident pool through the stirring main shaft.

[0009] The lifting device includes a hydraulic cylinder, a high-pressure inlet pipe, a high-pressure return pipe, a reversing valve assembly, a high-pressure oil pump, a hydraulic motor, and a hydraulic oil tank. The high-pressure oil pump is installed in the hydraulic oil tank and connected to the hydraulic motor, which is installed above the hydraulic oil tank. The outlet of the high-pressure oil pump is connected to the reversing valve assembly via a high-pressure oil pipe, and the reversing valve assembly is installed above the hydraulic oil tank. The hydraulic cylinder is installed between the mixing platform and the side wall of the tailings emergency pool, and is connected to the reversing valve assembly via a high-pressure inlet pipe and a high-pressure return pipe.

[0010] The slurry pump is installed on one side of the tailings filling accident pool.

[0011] The stirring blades consist of a set of triangular blades and two sets of parallel blades.

[0012] The stirring motor and stirring reducer are mounted on the stirring platform by anchor bolts. The stirring motor and stirring reducer are connected by a pin coupling. The stirring reducer is connected to the stirring main shaft by gears. The stirring main shaft is connected to the stirring blades by bolts.

[0013] There are four hydraulic cylinders, distributed at the four corners of the mixing platform.

[0014] The mixing platform is constructed from I-beams and iron plates.

[0015] The beneficial effects of this utility model are as follows: the design of triangular and parallel blades can better disperse the accumulated tailings and caking material and fully mix them into a homogeneous tailings slurry; the use of a lifting device can greatly reduce the mixing resistance of the mixing device, prevent the motor of the mixing device from being overloaded, and prevent the phenomenon of the accumulated tailings and caking material pressing and jamming the blades of the mixing device when the mixing device is about to be stopped. The effective volume of the tailings accident pit is guaranteed, eliminating the need to use excavators and manual labor to dig up the accumulated tailings and caking material to restore the volume of the tailings accident pit, saving manpower, material resources, financial resources and production costs, and reducing the labor intensity of employees. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the mixing platform of this utility model;

[0018] In the diagram: 1. Mixing motor; 2. Mixing reducer; 3. Mixing shaft; 4. Mixing blades; 5. Mixing platform; 6. Hydraulic cylinder; 7. High-pressure oil inlet pipe; 8. High-pressure oil return pipe; 9. Reversing valve assembly; 10. High-pressure oil pump; 11. Hydraulic motor; 12. Hydraulic oil tank; 13. Tailings filling emergency pool; 14. Slurry pump. Detailed Implementation

[0019] To make the purpose, technical solution, and advantages of this utility model clearer, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described implementation cases are only a small part of this utility model, not all of them. All other implementation cases obtained by those skilled in the art based on the implementation cases of this utility model without creative effort are within the protection scope of this utility model.

[0020] An apparatus for cleaning a tailings accident pond includes a mixing device, a lifting device, a tailings accident pond 13, and a slurry pump 14. The mixing device includes a mixing motor 1, a mixing reducer 2, a mixing main shaft 3, mixing blades 4, and a mixing platform 5. The mixing motor 1 and the mixing reducer 2 are installed on the mixing platform 5. The mixing motor 1, the mixing reducer 2, the mixing main shaft 3, and the mixing blades are connected in sequence. The mixing platform 5 is set above the tailings accident pond 13. The mixing blades 4 extend into the tailings accident pond 13 through the mixing main shaft 3.

[0021] The lifting device includes a hydraulic cylinder 6, a high-pressure inlet pipe 7, a high-pressure return pipe 8, a reversing valve assembly 9, a high-pressure oil pump 10, a hydraulic motor 11, and a hydraulic oil tank 12. The high-pressure oil pump 10 is installed in the hydraulic oil tank 12 and connected to the hydraulic motor 11, which is installed above the hydraulic oil tank 12. The outlet of the high-pressure oil pump 10 is connected to the reversing valve assembly 9 via a high-pressure oil pipe, and the reversing valve assembly 9 is installed above the hydraulic oil tank 12. The hydraulic cylinder 6 is installed between the mixing platform 5 and the side wall of the tailings emergency pool 13, and is connected to the reversing valve assembly 9 via the high-pressure inlet pipe 7 and the high-pressure return pipe 8.

[0022] The slurry pump 14 is installed on one side of the tailings accident pool 13.

[0023] The stirring blade 4 consists of a set of triangular blades and two sets of parallel blades.

[0024] The stirring motor 1 and the stirring reducer 2 are mounted on the stirring platform 5 by anchor bolts. The stirring motor 1 and the stirring reducer 2 are connected by a pin coupling. The stirring reducer 2 is connected to the stirring main shaft 3 by gears. The stirring main shaft 3 is connected to the stirring blades 4 by bolts.

[0025] There are four hydraulic cylinders 6, which are distributed at the four corners of the mixing platform 5.

[0026] The mixing platform 5 is made of I-beams and iron plates.

[0027] In practical applications, the usage process of this utility model is as follows:

[0028] The mixing platform 5 is normally raised by the hydraulic cylinder 6 and is in the "raised" state.

[0029] When preparing to clean up the tailings accident pool 13, first start the mixing motor 1. After the mixing system is running normally, slowly lower the mixing device through the hydraulic device, that is, lower it while mixing.

[0030] During the descent of the mixing device, carefully observe its operating status. If any abnormality is detected, stop the descent, raise the mixing device using the lifting device, and wait for it to return to normal operation before lowering it again until it reaches the lowest point and resumes normal operation.

[0031] After the mixing device fully disperses the silted tailings and brittle material in the tailings accident pool 13 and mixes them into a homogeneous tailings slurry, the slurry pump 14 is started to pump the tailings slurry out of the tailings accident pool 13.

[0032] After the tailings in the tailings accident pool 13 are cleaned up, the mixing device is raised by the lifting device and returned to the "raised" state to prevent the mixing device from not starting for a long time, and the accumulated tailings and caking material from pressing the mixing blades 4 of the mixing device.

[0033] This invention greatly improves the efficiency of cleaning and filling tailings accident ponds and solves the problem of slurry pumps being pressed against trucks in tailings accident ponds, saving manpower, material resources, financial resources and production costs.

[0034] An embodiment of this utility model is as follows:

[0035] The stirring motor 1 is model YP2-160M-4, with a power of 11kW;

[0036] The angle 1 between the triangular blade of the stirring blade 4 and the main shaft is 37°, the angle 2 is 50°, the plane size is 314×400×116mm, and the thickness is 6mm.

[0037] The planar dimensions of the parallel blades of stirring blade 4 are 760×360mm, and the thickness is 8mm;

[0038] The dimensions of the mixing platform 5 are 2500×2500mm.

Claims

1. A device for cleaning up a tailings accident pond, characterized in that: The device includes a mixing device, a lifting device, a tailings emergency filling pool (13), and a slurry pump (14). The mixing device includes a mixing motor (1), a mixing reducer (2), a mixing main shaft (3), mixing blades (4), and a mixing platform (5). The mixing motor (1) and the mixing reducer (2) are installed on the mixing platform (5). The mixing motor (1), the mixing reducer (2), the mixing main shaft (3), and the mixing blades are connected in sequence. The mixing platform (5) is set above the tailings emergency filling pool (13). The mixing blades (4) extend into the tailings emergency filling pool (13) through the mixing main shaft (3). The lifting device includes a hydraulic cylinder (6), a high-pressure inlet pipe (7), a high-pressure return pipe (8), a reversing valve assembly (9), a high-pressure oil pump (10), a hydraulic motor (11), and a hydraulic oil tank (12). The high-pressure oil pump (10) is installed in the hydraulic oil tank (12) and connected to the hydraulic motor (11). The hydraulic motor (11) is installed above the hydraulic oil tank (12). The outlet of the high-pressure oil pump (10) is connected to the reversing valve assembly (9) via a high-pressure oil pipe. The reversing valve assembly (9) is installed above the hydraulic oil tank (12). The hydraulic cylinder (6) is installed between the mixing platform (5) and the side wall of the tailings accident pool (13). The hydraulic cylinder (6) is connected to the reversing valve assembly (9) via the high-pressure inlet pipe (7) and the high-pressure return pipe (8). The slurry pump (14) is installed on one side of the tailings accident pool (13).

2. The apparatus for cleaning a tailings accident pond according to claim 1, characterized in that: The stirring blade (4) consists of a set of triangular blades and two sets of parallel blades.

3. The apparatus for cleaning a tailings accident pond according to claim 1, characterized in that: The stirring motor (1) and the stirring reducer (2) are mounted on the stirring platform (5) by anchor bolts. The stirring motor (1) and the stirring reducer (2) are connected by a pin coupling. The stirring reducer (2) and the stirring main shaft (3) are connected by gears. The stirring main shaft (3) and the stirring blade (4) are connected by bolts.

4. The apparatus for cleaning a tailings accident pond according to claim 1, characterized in that: There are four hydraulic cylinders (6) in total, distributed at the four corners of the mixing platform (5).

5. The apparatus for cleaning a tailings accident pond according to claim 1, characterized in that: The mixing platform (5) is made of I-beams and iron plates.

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