A filling device applied to coal gangue filling coal mine collapse area and gully area
By using coal gangue for synchronous filling during coal mining and using specialized equipment to control the crushing particle size and coverage area, the problems of land idleness and high cost in the treatment of coal mine subsidence areas have been solved, achieving efficient and low-cost subsidence prevention.
Patent Information
- Application Number
- CN202310039841.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2043-01-13
AI Technical Summary
Existing coal mine subsidence area remediation projects suffer from problems such as idle land resources, high remediation costs, waste of soil resources, and poor arable land quality. Furthermore, traditional remediation methods are inefficient and have a significant environmental impact.
Coal gangue generated during the mining process is used for synchronous filling using specialized filling equipment, which includes a feeding box, a feeding cylinder, a crushing cylinder, and a crushing cone. By controlling the crushed particle size and the bulk material section, the density and coverage of the filling layer are achieved, preventing collapse and reducing treatment costs.
This approach has enabled the prevention of subsidence during mining, improved governance efficiency, reduced costs, and minimized environmental impact.
Smart Images
Figure CN116291703B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field, and in particular to a filling device for filling coal mine subsidence areas and gully areas with coal gangue. BACKGROUND
[0002] A coal mining subsidence area refers to a sunken region left after coal mining. Mining subsidence destroys the surface topography, causing soil nutrients and organic matter to be lost at an accelerated rate due to increased farmland slope, and the fertility is greatly reduced. Therefore, comprehensive management of coal mining subsidence areas is generally considered a world problem.
[0003] The conventional management method is to manage after subsidence, i.e., coal mining subsidence → compensation for losses → idle subsidence land → management. The main problems with this management mode in the Huaibei area are: 1. Land resources are always idle during the subsidence process and cannot be effectively utilized; 2. Large-scale land subsidence is followed by reclamation, which not only brings great difficulties to reclamation management projects, but also has high management costs; 3. It is difficult to protect and utilize the cultivated layer. After the subsidence land surface accumulates water, the topsoil is wasted in the water and cannot be taken out during management; 4. The quality of the farmland reclaimed by the traditional mode is poor, and the farmland after reclamation needs to be matured and improved for a period of time before it can be cultivated. The traditional management method is a post-supplement type, and there are many problems to overcome and solve, and the management cost is high.
[0004] With the supplement of mining and management experience, the pre-management mode gradually becomes the mainstream. According to the time and spatial sequence of coal mining subsidence and management engineering arrangement, it can be divided into three modes: pre-positioned management, synchronous management, and post-positioned management. The present application mainly proposes a device for synchronous management, which is suitable for filling the non-device occupied space formed after mining with solid waste-coal gangue generated during mining, aiming to effectively fill the early stage before subsidence occurs, without the need for large-scale mechanized operations on the ground, reducing the management cost, and avoiding the impact on the environment. SUMMARY
[0005] In view of the problems in the above technical background, the present application aims to provide a filling device for filling coal mine subsidence areas and gully areas with coal gangue, which fills the space after mining with coal gangue generated during mining, without the need for large-scale mechanized operations on the ground, while reducing the impact on the environment, solving the problems of delayed effectiveness and high cost in the management of existing coal mine subsidence areas.
[0006] To achieve the above purpose, the technical solution adopted by the present application is:
[0007] The application discloses a filling device applied to coal gangue filling in coal mine collapse areas and gully areas.
[0008] The driving part comprises a rotating shaft which can be lifted and rotated, and a crushing cone is connected to the bottom end of the rotating shaft and penetrates through a plurality of the feeding cylinders, the crushing cone is located in the crushing cylinder, and the crushing cone controls the crushing particle size of the filling material when being lifted;
[0009] The bottom of the crushing cone is connected with a material scattering part which scatters the crushed filling material to the surroundings.
[0010] In the above technical scheme, further, the driving part comprises a U-shaped frame which is reversely installed on the middle part of the top of the feeding box, a horizontal plate is arranged in the middle part of the U-shaped frame, symmetrical hydraulic cylinders are arranged on the horizontal plate, the telescopic ends of the two hydraulic cylinders penetrate through the top plate of the U-shaped frame and are connected through a fixed plate, a driving motor is arranged on the fixed plate, a rotating shaft is connected to the output end of the driving motor, and the bottom end of the rotating shaft penetrates through the fixed plate, the top of the U-shaped frame and the middle part of the horizontal plate in sequence.
[0011] In the above technical scheme, further, a lateral support side support is arranged between the one side of the top of the U-shaped frame and the top of the feeding box, and the rotating shaft is arranged on the fixed plate through an axial anti-skid shaft sleeve.
[0012] In the above technical scheme, further, at least one radial retaining frame is arranged in each of the feeding cylinders, the rotating shaft penetrates through the inner side end of the retaining frame, and the vertical projections of a plurality of retaining frames are coincident.
[0013] In the above technical scheme, further, a crushing groove which penetrates through the upper and lower ends is arranged in the crushing cylinder, the crushing groove is in the shape of a frustum of a cone, a plurality of first tooth seats are arranged on the inner side of the crushing cylinder, the first tooth seats are distributed in a ring shape, and a plurality of first crushing hammers are arranged on the same side of the first tooth seats in the circumferential direction.
[0014] In the above technical scheme, further, the crushing cone is in the shape of a frustum of a cone, the conical surface of the crushing cone is parallel to the inner side of the crushing cylinder, a plurality of second tooth seats are arranged on the conical surface of the crushing cone, a plurality of second crushing hammers are arranged on the same side of the second tooth seats in the rotating direction, and the second crushing hammers are oppositely arranged with the first crushing hammers.
[0015] Further, the bulk material part comprises a connecting column connected to the bottom end of the crushing cone, a plurality of rotating grooves radially arranged at the bottom end of the connecting column, a rotating seat and an arc-shaped rail coaxially arranged in the rotating grooves, a throwing plate connected to the rotating seat, an arc-shaped surface concaved on the side of the throwing plate facing the rotating direction, a limiting hole arranged on the throwing plate, and a spring arranged on the arc-shaped rail.
[0016] Compared with the prior art, the present application has the following advantages:
[0017] The special filling equipment is installed on the ground of the mining area, and the coal gangue produced in the mining process is poured into the discharging box. Due to the gravity, the coal gangue falls along the discharging cylinder and is crushed in the crushing space composed of the crushing cylinder and the crushing cone. The crushing particle size can be adjusted by controlling the lifting of the crushing cone in the crushing cylinder according to the filling particle size requirement, so that the filling particle size is layered, and the gap between the filling layers is reduced by controlling different crushing particle sizes. The bulk material part arranged at the bottom increases the filling coverage radius of the crushed filling material. The filling equipment is used for pre-treatment to prevent collapse, which can increase the timeliness of pre-treatment, avoid collapse, and flexibly fill, reduce the cost of pre-treatment, and avoid the influence on the environment. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The filling equipment provided by the embodiment of the present application is shown in the figure Figure 1 ;
[0019] Figure 2 The filling equipment provided by the embodiment of the present application is shown in the figure Figure 2 ;
[0020] Figure 3 The front view of the filling equipment provided by the embodiment of the present application is shown in the figure
[0021] Figure 4 The half-section view of the discharging cylinder and the connecting solid view of the crushing cylinder are shown in the figure
[0022] Figure 5 The half-section view of the crushing cylinder is shown in the figure
[0023] Figure 6 The mounting solid view of the crushing cone and the bulk material part is shown in the figure
[0024] Figure 7 The partial exploded solid view of the bulk material part is shown in the figure
[0025] In the figure: 100, discharging box
[0026] Drive unit; 210, U-shaped frame; 211, horizontal plate; 212, side support; 220, hydraulic cylinder; 230, fixing plate; 240, drive motor; 250, rotating shaft;
[0027] 300. Feeding cylinder; 310. Cage;
[0028] 400. Crushing cylinder; 410. Crushing trough; 420. First toothed seat; 430. First breaker hammer;
[0029] 500, Crushing cone; 510, Second toothed seat; 520, Second crusher hammer;
[0030] 600, Bulk Material Section; 610, Connecting Column; 611, Rotating Groove; 620, Rotating Seat; 630, Discharge Plate; 631, Limiting Hole; 640, Arc-shaped Rail; 650, Spring. Implementation
[0031] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example
[0032] like Figures 1-7 As shown, a filling device for coal gangue filling in coal mine subsidence areas and gully areas includes a feeding box 100. The feeding box 100 has an upward-opening hopper with smooth, arc-shaped walls on all four sides facing towards the bottom, facilitating the collection and sliding of filling materials such as coal gangue. A drive unit 200 is installed on the top of the feeding box 100, which controls the up-and-down movement and rotation of a rotating shaft 250. Multiple feeding cylinders 300 connected in series and inserted underground are connected to the bottom of the feeding box 100, and a crushing cylinder 400 is connected to the bottom of each feeding cylinder 300. The drive unit 200 includes a rotating shaft 250, which can be raised, lowered, and rotated. The bottom end of the rotating shaft 250 passes through multiple feeding cylinders 300 and is connected to a crushing cone 500. The crushing cone 500 is located inside the crushing cylinder 400, and the crushing cone 500 controls the crushing particle size of the filler material when it rises and falls. The rotating shaft 250 is controlled to move up and down by the drive unit 200, which drives the crushing cone 500 to move up and down relative to the crushing cylinder 400, thereby realizing the function of controlling the crushing particle size. When filling the filler layer, different particle sizes can increase the compactness of the filler. The bottom of the crushing cone 500 is connected to a material dispersing unit 600, which throws the crushed filler material in all directions, thereby increasing the filling coverage area.
[0033] Application principle:
[0034] By positioning the special filling equipment installed on the ground of the mining area, the waste coal gangue generated during the mining process is poured into the discharging box 100, and due to the action of gravity, the coal gangue falls along the discharging cylinder 300, and is crushed in the crushing space composed of the crushing cylinder 400 and the crushing cone 500. Here, the crushing particle size can be adjusted by controlling the lifting of the crushing cone 500 in the crushing cylinder 400 through the driving part 200 according to the filling particle size requirement, so that the filling particle size is layered, and the gap between the filling layers is reduced by controlling different crushing particle sizes, and the bottom is provided with a bulk material part to increase the filling and covering radius of the crushed filling material. The use of such filling equipment for pre-treatment of anti-collapse can increase the timeliness of pre-treatment, avoid collapse, and flexibly fill, reduce the cost of pre-treatment, and avoid the impact on the environment.
[0035] As shown in Figures 1-3 , the driving part 200 includes a U-shaped frame 210 installed upside down on the top of the discharging box 100, and a horizontal plate 211 is arranged in the middle of the U-shaped frame 210. The horizontal plate 211 is symmetrically provided with a hydraulic cylinder 220. The hydraulic cylinder 220 can realize stable control of lifting, and the hydraulic cylinder 220 is stable and can provide sufficient lifting force. The two hydraulic cylinders 220 extend through the top plate of the U-shaped frame 210 and are connected through a fixed plate 230. The fixed plate 230 is provided with a driving motor 240, and the output end of the driving motor 240 is connected with a rotating shaft 250. The bottom end of the rotating shaft 250 extends through the fixed plate 230, the top of the U-shaped frame 210, and the middle of the horizontal plate 211 in sequence. A side support 212 is arranged between the top of the U-shaped frame 210 and the top of the discharging box 100. The rotating shaft 250 is installed on the fixed plate 230 through an anti-skid shaft sleeve, which avoids the axial stress of the output end of the driving motor 240 during lifting and increases the stability of the equipment operation.
[0036] As shown in Figure 4 , at least one retaining frame 310 is arranged in each section of the discharging cylinder 300. The retaining frame 310 increases the stability of the rotating shaft in rotation and sliding up and down. The rotating shaft 250 extends through the inner side end of the retaining frame 310, and the vertical projections of the plurality of retaining frames 310 coincide to avoid disorder and blockage of the filling material.
[0037] As shown in Figure 5 , 6 , the crushing cylinder 400 is provided with a crushing groove 410 extending through the upper and lower ends. The crushing groove 410 is in the shape of a frustum of a cone. The inner side surface of the crushing cylinder 400 is provided with a plurality of first tooth seats 420. The plurality of first tooth seats 420 are arranged in a ring shape, and the same side of the plurality of first tooth seats 420 along the circumferential direction is provided with a plurality of first crushing hammers 430. The first tooth seat 420 is arranged to increase the stability of the installation of the first crushing hammer 430.
[0038] The broken cone 500 is frustum-shaped, and the conical surface of the broken cone 500 is parallel to the inner side surface of the broken cylinder 400, and a plurality of second tooth seats 510 are arranged on the conical surface of the broken cone 500, and a plurality of second broken hammers 520 are arranged on the same side of the plurality of second tooth seats 510 along the rotation direction, and the second broken hammers 520 are arranged opposite to the first broken hammers 430, and the second tooth seats 510 are arranged to increase the stability of the installation of the second broken hammers 520;
[0039] The rotating shaft 250 drives the broken cone 500 to move up and down, and the broken cone 500 moves away from or approaches the conical surface of the inner side of the broken cylinder 400, so as to control the broken gap;
[0040] After the broken gap is controlled, the rotating shaft 250 drives the broken cone 500 to rotate, and the plurality of second broken hammers 520 and the plurality of first broken hammers 430 perform bidirectional extrusion on the fillers in the broken gap during the rotation, which increases the crushing efficiency and realizes the function of accurately controlling the particle size, and the crushing efficiency is high.
[0041] As shown in Figure 7 The bulk material part 600 includes a connecting column 610 connected to the bottom end of the broken cone 500, a plurality of rotating grooves 611 are arranged in a ring shape at the bottom end of the connecting column 610 in the radial direction, a rotating seat 620 and an arc-shaped rail 640 are coaxially arranged in the rotating grooves 611, the rotating seat 620 is connected to a material throwing plate 630, the material throwing plate 630 is provided with an arc-shaped surface concave toward one side of the rotation direction, the material throwing plate 630 is provided with a limiting hole 641, the outer end of the arc-shaped rail 640 passes through the limiting hole 641, and the arc-shaped rail 640 is provided with a spring 650, under the action of the spring 650 and centrifugal force during rotation, the plurality of material throwing plates 630 expand radially, and the radial and circumferential impact force is exerted on the falling particles, so that the particles are thrown out, thereby increasing the filling radius, and the outer end of the plurality of material throwing plates 630 is contracted toward the shaft under the extrusion of the hole wall when the equipment is retracted, so that the equipment is easily retracted, and repeated operation is facilitated.
[0042] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A filling device for filling coal gangue in coal mine collapse area and gully area, comprising a discharging box (100), characterized in that: a driving part (200) is mounted on the top of the discharging box (100), a plurality of discharging barrels (300) are communicated with the bottom of the discharging box (100) and inserted into the ground in series, and a crushing barrel (400) is connected to the bottom of the discharging barrel (300); the driving part (200) comprises a rotating shaft (250) which can rotate and lift, a crushing cone (500) is connected to the bottom end of the rotating shaft (250) and penetrates through the discharging barrel (300), the crushing cone (500) is located in the crushing barrel (400), and the crushing cone (500) controls the crushing particle size of the filling material when lifting; a scattering part (600) is connected to the bottom of the crushing cone (500), which scatters the crushed filling material to the surrounding; a crushing groove (410) penetrating through the upper and lower ends is arranged in the crushing barrel (400), the crushing groove (410) is in the shape of a truncated cone, a plurality of first tooth seats (420) are arranged on the inner side of the crushing barrel (400), the plurality of first tooth seats (420) are arranged in a ring shape, and a plurality of first crushing hammers (430) are arranged on the same side of the circumferential direction of the plurality of first tooth seats (420); the crushing cone (500) is in the shape of a truncated cone, the conical surface of the crushing cone (500) is parallel to the inner side of the crushing barrel (400), a plurality of second tooth seats (510) are arranged on the conical surface of the crushing cone (500), a plurality of second crushing hammers (520) are arranged on the same side of the rotating direction of the plurality of second tooth seats (510), and the second crushing hammers (520) are arranged opposite to the first crushing hammers (430), the scattering part (600) comprises a connecting column (610) connected to the bottom end of the crushing cone (500), a plurality of rotating grooves (611) are radially arranged on the bottom end of the connecting column (610) and arranged in a ring shape, a rotating seat (620) and an arc-shaped rail (640) are coaxially arranged on the bottom end of the rotating groove (611), a throwing plate (630) is connected to the rotating seat (620), the throwing plate (630) is provided with an arc-shaped surface concave toward the side of the rotating direction, a limiting hole (631) is arranged on the throwing plate (630), the outer end of the arc-shaped rail (640) penetrates through the limiting hole (631), and a spring (650) is arranged on the arc-shaped rail (640).
2. The filling device according to claim 1, characterized in that, Said drive part (200) includes U-shaped frame (210) installed upside down in the middle of the top of the blanking box (100), the middle of the U-shaped frame (210) is equipped with horizontal plate (211), the horizontal plate (211) is symmetrically equipped with hydraulic cylinder (220), the telescopic ends of the two hydraulic cylinders (220) penetrate the top plate of the U-shaped frame (210) and are connected through fixed plate (230), the fixed plate (230) is equipped with drive motor (240), the output end of the drive motor (240) is connected with rotating shaft (250), the bottom end of the rotating shaft (250) penetrates the fixed plate (230), the top of the U-shaped frame (210) and the middle of the horizontal plate (211) in sequence.
3. The filling device according to claim 2, characterized in that, The side of the top of the U-shaped frame (210) and the top of the blanking box (100) are equipped with lateral support side support (212), the rotating shaft (250) is installed on the fixed plate (230) through the shaft sleeve equipped with axial anti-skid.
4. The filling device according to claim 3, characterized in that, The inside end of the rotating shaft (250) penetrates the inside end of the retaining frame (310), and the vertical projections of the multiple retaining frames (310) coincide.
Citation Information
Patent Citations
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CN111252237A
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CN115263411A
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CN208762943U
Shell soil remediation device
CN212442532U