Tailings crushing and feeding device for mine cemented filling

Abstract

The utility model relates to the technical field of mine equipment discloses a tailings crushing and feeding device for mine cemented filling, which comprises a crushing bin, a feed inlet arranged at the top of the crushing bin, a first stirring device arranged at the middle of the crushing bin, a discharge outlet arranged at the bottom of the crushing bin, a cutting beam arranged in the feed inlet, a second stirring device arranged in the discharge outlet, and a first conveying belt arranged below the crushing bin. The utility model can conveniently crush and scatter the tailings, conveniently feed, effectively improve the crushing effect of the tailings, and improve the filling quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to a tailings crushing and feeding device for cemented backfilling in mines. Background Technology

[0002] As the scale of mining operations gradually expands, the safety hazards caused by goaf areas have become an urgent problem for mines to solve. At the same time, the amount of tailings discharged from mines is increasing year by year, while the capacity of tailings ponds is insufficient to meet the requirements of future production expansion. In response, mine designs use tailings to fill goaf areas.

[0003] Currently, after filtration, tailings may solidify into clumps due to external factors such as rain or dryness. Therefore, before backfilling, a crushing device is needed to crush the tailings so that they can be transported into the mixing system and mixed evenly with other raw materials.

[0004] The existing technology has at least the following problems: the crushing device generally uses a spiral bar for crushing, but it often encounters situations where the tailings are too wet to be stirred or the stirring is too slow, resulting in uneven quality of tailings entering the mixing system, which leads to unstable filling concentration and affects filling quality and filling efficiency. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a tailings crushing and feeding device for cemented backfilling in mines. This invention can conveniently crush and disperse clumps of tailings and facilitate feeding, effectively improving the crushing effect of tailings and enhancing the backfilling quality and efficiency.

[0006] The technical solution of this utility model to solve the technical problem is as follows: a tailings crushing and feeding device for cemented backfilling in mines, including a crushing chamber, a feed inlet at the top of the crushing chamber, a first stirring device in the middle of the crushing chamber, a discharge outlet at the bottom of the crushing chamber, a cutting beam inside the feed inlet, a second stirring device inside the discharge outlet, and a first conveyor belt below the crushing chamber.

[0007] As an optimization, the cutting beam includes a frame, crossbeams, and longitudinal beams. The frame is connected to the feed inlet, and the crossbeams and longitudinal beams are arranged in a crisscross pattern within the frame. The frame facilitates overall installation, while the crossbeams and longitudinal beams enable the cutting of clumps of tailings into smaller pieces.

[0008] As an optimization, at least one set of crushing chambers should be provided. By setting up multiple sets of crushing chambers, the tailings crushing efficiency and tailings processing efficiency can be improved.

[0009] As an optimization, a second conveyor belt is installed below the first conveyor belt. By setting up the second conveyor belt, the tailings processed by each crushing chamber can be transported together to the mixing system to be mixed with other backfill materials.

[0010] As an optimization, the first stirring device includes a first motor and a first stirring rod. The first motor is located outside the crushing chamber, and the first stirring rod is horizontally mounted inside the crushing chamber via a shaft seat. The first stirring rod is equipped with several sets of first stirring blades, and the output end of the first motor is connected to one end of the first stirring rod. By setting the first motor, the first stirring rod can be driven to rotate, thereby causing the first stirring blades to break up and stir small pieces of tailings. By setting the first stirring blades, the contact area with the tailings can be increased, thus better breaking up the tailings.

[0011] As an optimization, the second mixing device includes a second motor and a second mixing rod. The second motor is located outside the feed inlet, and the second mixing rod is horizontally positioned inside the feed inlet via a shaft seat. The second mixing rod has several sets of second mixing blades. The output end of the second motor is connected to one end of the second mixing rod. By setting the second motor, the second mixing rod can be driven to rotate, thereby causing the second mixing blades to further disperse and mix the tailings. By setting the second mixing blades, the contact area with the tailings clumps can be increased, resulting in better dispersion of the tailings.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By incorporating a crushing chamber and feed inlet, the system can be positioned below ground level to accommodate tailings, facilitating the feeding of tailings with high moisture content. A cutting beam initially breaks up clumps of tailings, allowing the first and second mixing devices to further break them up, preventing uneven distribution of tailings entering the mixing system and ensuring stable filling concentration. The first mixing device breaks up and mixes the initially cut tailings clumps, improving the mixing effect within the crushing chamber. The discharge port and second mixing device further break up the tailings, ensuring they reach a suitable looseness upon discharge. A first conveyor belt prevents tailings from accumulating below the discharge port, collecting and transporting the broken tailings for feeding. This invention conveniently breaks up clumps of tailings and facilitates feeding, effectively improving the tailings crushing effect and enhancing filling quality and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the cutting beam in one embodiment of the present invention.

[0016] In the diagram: 1. Crushing chamber; 2. Feed inlet; 3. First mixing device; 4. Discharge outlet; 5. Cutting beam; 6. Second mixing device; 7. First conveyor belt; 8. Second conveyor belt;

[0017] 31. First motor; 32. First stirring rod; 33. First stirring blade;

[0018] 51. Frame; 52. Crossbeam; 53. Longitudinal beam;

[0019] 61. Second motor; 62. Second stirring rod; 63. Second stirring blade. Detailed Implementation

[0020] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0021] Example 1

[0022] Figure 1 and Figure 2 As one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a tailings crushing and feeding device for cemented backfilling in mines includes a crushing chamber 1, a feed inlet 2 at the top of the crushing chamber 1, a first stirring device 3 in the middle of the crushing chamber 1, a discharge outlet 4 at the bottom of the crushing chamber 1, a cutting beam 5 inside the feed inlet 2, a second stirring device 6 inside the discharge outlet 4, and a first conveyor belt 7 below the crushing chamber 1.

[0023] By setting up the crushing chamber 1 and the feed inlet 2, it can be located below ground level to accommodate tailings, facilitating the feeding of tailings with high moisture content; by setting up the cutting beam 5, it can initially cut up the clumps of tailings, facilitating the further cutting and dispersing of tailings by the first mixing device 3 and the second mixing device 6, avoiding uneven mass distribution of tailings entering the mixing system and ensuring stable filling concentration; by setting up the first mixing device 3, it can disperse and mix the initially cut tailings clumps, improving the mixing effect in the crushing chamber 1; by setting up the discharge port 4 and the second mixing device 6, it can further disperse the tailings, so that the tailings achieve a suitable looseness at the time of discharge; by setting up the first conveyor belt 7, it can prevent tailings from accumulating below the discharge port 4, collect and transport the dispersed tailings for feeding.

[0024] like Figure 2 As shown, the cutting beam 5 includes a frame 51, a crossbeam 52, and a longitudinal beam 53. The frame 51 is connected to the feed inlet 2, and the crossbeams 52 and longitudinal beams 53 are arranged in a crisscross pattern within the frame 51. The frame 51 facilitates overall installation; the crossbeams 52 and longitudinal beams 53 enable the cutting of clumps of tailings into smaller pieces.

[0025] like Figure 1 As shown, at least one set of crushing chamber 1 is provided. By setting multiple sets of crushing chamber 1, the tailings crushing efficiency, tailings processing efficiency, and overall filling efficiency can be improved.

[0026] like Figure 1 As shown, a second conveyor belt 8 is provided below the first conveyor belt 7. By setting the second conveyor belt 8, the tailings processed by each crushing chamber 1 can be transported together to the mixing system to be mixed with other filling materials.

[0027] like Figure 1 As shown, the first stirring device 3 includes a first motor 31 and a first stirring rod 32. The first motor 31 is located on the outside of the crushing chamber 1, and the first stirring rod 32 is horizontally located on the inside of the crushing chamber 1 via a shaft seat. The first stirring rod 32 is equipped with several sets of first stirring blades 33. The first motor 31 is a geared motor, and its output end is connected to one end of the first stirring rod 32. By setting the first motor 31, the first stirring rod 32 can be driven to rotate, thereby driving the first stirring blades 33 to break up and stir small pieces of tailings. By setting the first stirring blades 33, the contact area with the tailings can be increased, thus better breaking up the tailings.

[0028] like Figure 1 As shown, the second stirring device 6 includes a second motor 61 and a second stirring rod 62. The second motor 61 is located outside the feed inlet 2, and the second stirring rod 62 is horizontally located inside the feed inlet 2 via a shaft seat. The second stirring rod 62 has several sets of second stirring blades 63. The second motor 61 is a geared motor, and its output end is connected to one end of the second stirring rod 62. By setting the second motor 61, the second stirring rod 62 can be driven to rotate, thereby driving the second stirring blades 63 to further disperse and stir the tailings. By setting the second stirring blades 63, the contact area with the tailings clumps can be increased, resulting in better dispersion of the tailings.

[0029] In operation, the crushing chamber 1 is located below ground level, and the feed inlet 2 is flush with the ground. Workers push the accumulated tailings from the ground into the feed inlet 2. When the clumps of tailings pass through the cutting beam 5, they are cut into small pieces by the crossbeam 52 and the longitudinal beam 53, and then enter the crushing chamber 1. When the small clumps of tailings pass through the first mixing device 3, they are broken up and mixed by the first mixing rod 32 and the first mixing blade 33 driven by the first motor 31. Then, the tailings continue to fall and pass through the second mixing device 6, where the second mixing rod 62 and the second mixing blade 63 driven by the second motor 61 further break up and mix them, so that the tailings reach a suitable looseness when discharged. The processed tailings fall onto the first conveyor belt 7 through the discharge port 4. The first conveyor belt 7 transfers the broken tailings to prevent them from accumulating below the discharge port 4. When the tailings move to the end of the first conveyor belt 7, they fall onto the second conveyor belt 8. The second conveyor belt 8 transports several groups of tailings processed by the crushing chamber 1 to the subsequent mixing system to mix with other raw materials. This invention can not only easily crush and disperse clumps of tailings, but also facilitate feeding, effectively improving the crushing effect of tailings and enhancing the filling quality and efficiency.

[0030] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A tailings crushing and feeding device for cemented backfilling in mines, comprising a crushing chamber (1), characterized in that: Crushing chamber The top of (1) is provided with a feed inlet (2), the middle of the crushing chamber (1) is provided with a first stirring device (3), the bottom of the crushing chamber (1) is provided with a discharge outlet (4), the feed inlet (2) is provided with a cutting beam (5), the discharge outlet (4) is provided with a second stirring device (6), and the bottom of the crushing chamber (1) is provided with a first conveyor belt (7).

2. The tailings crushing and feeding device for cemented backfilling in mines according to claim 1, characterized in that: The cutting beam (5) includes a frame (51), a crossbeam (52) and a longitudinal beam (53). The frame (51) is connected to the feed inlet (2), and the crossbeam (52) and the longitudinal beam (53) are arranged in a crisscross pattern within the frame (51).

3. The tailings crushing and feeding device for cemented backfilling in mines according to claim 1, characterized in that: There is at least one set of crushing chambers (1).

4. The tailings crushing and feeding device for cemented backfilling in mines according to claim 2, characterized in that: A second conveyor belt (8) is provided below the first conveyor belt (7).

5. The tailings crushing and feeding device for cemented backfilling in mines according to any one of claims 1 to 4, characterized in that: The first stirring device (3) includes a first motor (31) and a first stirring rod (32). The first motor (31) is located on the outside of the crushing chamber (1), and the first stirring rod (32) is horizontally located on the inside of the crushing chamber (1) through a shaft seat. The first stirring rod (32) is provided with several sets of first stirring blades (33), and the output end of the first motor (31) is connected to one end of the first stirring rod (32).

6. The tailings crushing and feeding device for cemented backfilling in mines according to claim 5, characterized in that: The second stirring device (6) includes a second motor (61) and a second stirring rod (62). The second motor (61) is located on the outside of the feed inlet (2), and the second stirring rod (62) is horizontally located on the inside of the feed inlet (2) via a shaft seat. The second stirring rod (62) is provided with several sets of second stirring blades (63). The output end of the second motor (61) is connected to one end of the second stirring rod (62).

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