Self-adaptive paste filling device for coal mine working face

Abstract

The utility model relates to the technical field of coal mine filling, in particular to a self-adaptive paste filling device for a coal mine working face. According to the technical scheme, the device comprises a bottom table, a shell and a net cylinder, the shell is arranged on the upper portion of the bottom table, the net cylinder is fixed to the upper end of the interior of the shell, a crushing wheel is rotationally installed in the net cylinder, feeding ports are formed in the corresponding positions of the shell and the net cylinder, and a discharging port is formed in the bottom end of the shell. According to the utility model, the fineness of the gangue is effectively ensured through the matching of the structures, and the size fraction difference of the gangue of the raw material is reduced, so that the flowing property and the strength property of the paste filling material are ensured, and the mass concentration variation amplitude of the filling slurry is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine filling, in particular to an adaptive paste filling device for a coal mine working face. Background Art

[0002] Coal mine working face adaptive paste filling is a technical measure used in the coal mining process. In the coal mining process, the working face is the core area of ​​coal mining and one of the important links in coal mine production. In order to ensure the safety and stability of the working face, it is usually necessary to fill the working face. Coal mine adaptive paste is conducive to optimizing the coal mine production environment, avoiding safety accidents such as collapse and landslides, and promoting the improvement of coal mining efficiency. Coal gangue, fly ash, etc. are all important materials in the paste filling mining process.

[0003] Coal mine goaf is a "hole" created by man-made excavation or natural geological movement below the surface. The existence of this type of goaf poses a great safety problem to mines. In order to improve the safety of mining, the goaf needs to be filled, thereby increasing the coal recovery rate and extending the service life of the mine;

[0004] Through paste filling, the roof and coal wall of the working face can be effectively supported, accidents such as roof sinking and coal wall spalling can be prevented, and the safety and stability of coal mine production can be ensured.

[0005] In actual production, gangue is used as paste filling aggregate, but the fineness of the gangue cannot be well guaranteed. When the size of the gangue as a raw material has great differences, the flowability and strength properties of the paste filling material cannot be guaranteed, and the mass concentration of the filling slurry varies greatly.

[0006] Therefore, we propose an adaptive paste filling device for coal mine working face to solve the existing problems. Utility Model Content

[0007] The utility model aims to solve the problems existing in the background technology and proposes an adaptive paste filling device for a coal mine working face.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive paste filling device for a coal mine working face, comprising a base, an outer shell and a mesh cylinder, the upper part of the base is provided with an outer shell, a mesh cylinder is fixed at the inner upper end of the outer shell, a crushing wheel is rotatably installed in the mesh cylinder, feed ports are provided at corresponding positions on the outer shell and the mesh cylinder, and a discharge port is provided at the bottom end of the outer shell.

[0009] Preferably, a strip-shaped notch is provided on the upper surface of the base;

[0010] Various rollers are rotatably installed in the strip-shaped gap, and a conveyor belt is installed between the rollers for transmission;

[0011] The conveyor belt is hidden in the strip-shaped gap.

[0012] Preferably, the outer wall of the housing is symmetrically mounted with rubber pads by bolts;

[0013] The lower surface of the rubber pad is symmetrically mounted with support rods through bolts, and the bottom ends of the support rods are fixed to the upper surface of the base through bolts.

[0014] Preferably, one side of the outer wall of the housing is fixed with a chassis by bolts;

[0015] A motor is installed in the chassis by bolts, and the output end of the motor passes through the housing and the net cylinder;

[0016] And the output end of the motor is connected to the shaft end of the crushing wheel.

[0017] Preferably, a support seat is provided on the lower surface of the base;

[0018] There are four support seats in total, and the positions of the four support seats are distributed in a rectangular array on the lower surface of the base.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] During use, the utility model of the adaptive paste filling device for coal mine working face can introduce the large-size coal mine working face paste filling waste rock to be processed into the mesh cylinder through the feed port, and the crushing wheel in the mesh cylinder rotates at a high speed, thereby crushing the waste rock entering the mesh cylinder, and the waste rock meeting the filling size passes through the mesh cylinder; leaks into the outer shell, and finally is discharged from the outer shell through the discharge port under the action of gravity;

[0021] The gangue that does not meet the particle size requirements will continue to remain in the mesh drum for crushing until it meets the requirements.

[0022] The discharged gangue falls onto the conveyor belt on the bottom platform, and is transported by the conveyor belt to the mixing and stirring process of the paste;

[0023] The utility model can effectively ensure the fineness of the gangue, reduce the size difference of the gangue particles of the raw materials, ensure the flowability and strength performance of the paste filling material, and reduce the variation range of the mass concentration of the filling slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 2 It is a side view structural schematic diagram of the utility model;

[0026] Figure 3 This is a schematic diagram of the shell structure of the utility model;

[0027] Figure 4 For the utility model Figure 3 Schematic diagram of the cross-sectional structure.

[0028] Reference numerals:

[0029] 1. Roller; 2. Conveyor belt; 3. Support seat; 4. Base; 5. Discharge port; 6. Support rod; 7. Rubber pad; 8. Casing; 9. Net cylinder; 10. Feed port; 11. Crushing wheel; 12. Chassis. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1

[0032] like Figure 1-Figure 4 As shown, the utility model proposes an adaptive paste filling device for a coal mine working face, comprising a base 4, an outer shell 8 and a mesh cylinder 9. The upper part of the base 4 is provided with an outer shell 8, the inner upper end of the outer shell 8 is fixed with a mesh cylinder 9, a crushing wheel 11 is rotatably installed in the mesh cylinder 9, and feed ports 10 are provided at corresponding positions on the outer shell 8 and the mesh cylinder 9, and a discharge port 5 is provided at the bottom end of the outer shell 8.

[0033] Based on Example 1:

[0034] During use, the utility model of the adaptive paste filling device for coal mine working face can introduce the large-size coal mine working face paste filling waste rock to be processed into the mesh cylinder 9 through the feed port 10. At this time, the crushing wheel 11 in the mesh cylinder 9 rotates at a high speed, thereby crushing the waste rock entering the mesh cylinder 9, and the waste rock meeting the filling size passes through the mesh cylinder 9; leaks into the outer shell 8, and finally is discharged from the outer shell 8 through the discharge port 5 under the action of gravity;

[0035] The gangue that does not meet the particle size requirements will continue to remain in the mesh tube 9 for crushing until it meets the requirements.

[0036] Embodiment 2

[0037] like Figure 1-Figure 4 As shown, the utility model proposes an adaptive paste filling device for coal mine working face. Compared with the first embodiment, the present embodiment further includes: a strip-shaped notch is provided on the upper surface of the base 4;

[0038] Various rollers 1 are rotatably installed in the strip-shaped gap, and conveyor belts 2 are installed between the rollers 1 for transmission;

[0039] The conveyor belt 2 is hidden in the strip-shaped gap;

[0040] The discharged gangue falls onto the conveyor belt 2 on the base 4, and under the conveying operation of the conveyor belt 2, the gangue is transported to the mixing and stirring operation process of the paste.

[0041] The outer wall of the housing 8 is symmetrically mounted with a rubber pad 7 by bolts;

[0042] The lower surface of the rubber pad 7 is symmetrically mounted with a support rod 6 by bolts, and the bottom end of the support rod 6 is fixed to the upper surface of the base 4 by bolts. The design of the rubber pad 7 can prevent the working vibration of the shell 8 from significantly affecting the base 4 to generate a large working noise.

[0043] One side of the outer wall of the housing 8 is fixed with a housing 12 by bolts;

[0044] A motor is installed in the chassis 12 by bolts, and the output end of the motor passes through the housing 8 and the net cylinder 9;

[0045] The output end of the motor is connected to the shaft end of the crushing wheel 11. Through the cooperation of the above structure, the motor works, thereby driving the crushing wheel 11 to rotate.

[0046] A support seat 3 is provided on the lower surface of the base 4;

[0047] There are four support bases 3 in total, and the positions of the four support bases 3 are distributed in a rectangular array on the lower surface of the base 4.

[0048] It should be noted that the motor and conveyor belt 2 structure are existing mature technologies, and their working principles and internal structures are known to technicians in the relevant technical field. The utility model only utilizes their functions and does not improve their internal structure. Therefore, they are not described in detail here, and technicians in this field can make any optional adjustments according to their needs or convenience.

[0049] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adaptive paste filling device for a coal mine working face, comprising a base (4), a shell (8) and a mesh cylinder (9), characterized in that: A shell (8) is provided on the upper part of the base (4), a net cylinder (9) is fixed to the upper end of the inner part of the shell (8), a crushing wheel (11) is rotatably installed in the net cylinder (9), a feed port (10) is provided at corresponding positions on the shell (8) and the net cylinder (9), and a discharge port (5) is provided at the bottom end of the shell (8).

2. The adaptive paste filling device for coal mine working face according to claim 1, characterized in that: The upper surface of the base (4) is provided with a strip-shaped notch; Various rollers (1) are rotatably installed in the strip-shaped gap, and a conveyor belt (2) is installed between the various rollers (1); The conveyor belt (2) is hidden in the strip-shaped gap.

3. The adaptive paste filling device for coal mine working face according to claim 1, characterized in that: The outer wall of the housing (8) is symmetrically mounted with a rubber cushion (7) via bolts; The lower surface of the rubber pad (7) is symmetrically mounted with a support rod (6) via bolts, and the bottom end of the support rod (6) is fixed to the upper surface of the base (4) via bolts.

4. The self-adaptive paste filling device for coal mine working face according to claim 1, characterized in that: A housing (12) is fixed to one side of the outer wall of the housing (8) by means of bolts; A motor is installed in the chassis (12) by means of bolts, and the output end of the motor passes through the housing (8) and the net cylinder (9); The output end of the motor is connected to the shaft end of the crushing wheel (11).

5. The self-adaptive paste filling device for coal mine working face according to claim 1, characterized in that: A support seat (3) is provided on the lower surface of the base (4); There are four support seats (3) in total, and the positions of the four support seats (3) are distributed in a rectangular array on the lower surface of the base (4).

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