Full-automatic slope coal mining and filling integrated machine

Abstract

The application discloses a kind of full-automatic mining and filling integrated machine of side slope coal, including machine head assembly, multiple groups of transfer device;The machine head assembly includes machine head rack, double-station operation head, and the double-station operation head includes coal mining heading head device, gangue compaction projection device;Coal mining heading head device, gangue compaction projection device are detachably connected on machine head rack;Each group of transfer device includes transfer rack, and transfer conveyor mechanism is provided in transfer rack;Crawler walking mechanism replaces original machine head dragging mode, multi-module millimeter-level synchronization, collapse instantaneous full-track lock, no module extrusion, pipeline tearing secondary failure;Machine head rack, transfer rack adopt 20mm FOPS fully-enclosed variable cross-section self-supporting box, adapt to 2.0-6.0m coal seam, completely cancel roadway full set of support, resist grading roof collapse impact from hardware source;No need to reserve protective coal pillar, side slope coal resource recovery rate is improved from 40%-60% to more than 90%.

Description

Technical Field

[0001] This invention relates to the field of filling and mining equipment technology, specifically to a fully automatic integrated machine for slope coal pressing and filling. Background Technology

[0002] In the field of coal mine backfilling mining, coal mining, coal preparation and gangue backfilling disposal are the core process links. The existing end-side mining equipment and processes have six inherent defects: (1) Coal mining and backfilling equipment are separate and independent. In narrow 3m-class mining tunnels, they cannot be arranged simultaneously. They are brought in and disassembled in batches, which extends the mining cycle by 65% ​​and increases the cost of double equipment procurement; (2) Traditional equipment does not have a closed falling object protection shell. After tunneling, anchor bolts, metal mesh and temporary hydraulic supports must be erected. The support materials and labor input are large, and roof collapse and side wall injury accidents occur frequently; (3) All the gangue stripped from the mine is transported and stored outside. Gangue mountains have environmental risks of dust, groundwater seepage, spontaneous combustion and landslides. The cost of transferring and treating ton gangue is 50-90 yuan. Yuan, many places restrict the construction of new gangue dumps; (4) the existing equipment has fixed external dimensions and cannot be adapted to coal seams of different depths; conventional single-function end-side coal mining machines do not have integrated filling, synchronous walking, and pre-installation capabilities outside the tunnel. The industry lacks complete sets of equipment and closed-loop mining systems that integrate excavation, transportation, filling, pressing, self-protection, and intelligent collaborative control. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a fully automatic integrated mining and filling machine for slope coal pressing, which solves the defects of existing split mining equipment such as fragmented processes, need for roadway support, external discharge of gangue causing pollution, fixed machine size, asynchronous movement of multiple modules, inefficient underground assembly, and easy damage to equipment and injury caused by roof collapse.

[0004] The technical solution of the present invention to solve the above problems is: a fully automatic integrated machine for slope coal pressing, including a machine head assembly and multiple sets of transfer devices;

[0005] The head assembly includes a head frame and a dual-station working head. The dual-station working head includes a coal mining and tunneling head device and a gangue compaction and throwing device. The head frame is equipped with a bidirectional reversible conveying mechanism, which includes a loose coal collection belt and a gangue throwing belt. The loose coal collection belt conveys coal powder and gangue mined by the coal mining and tunneling head device from the inside to the outside, while the gangue throwing belt conveys gangue that has been manually screened to remove coal powder from the outside to the inside. The gangue is then compacted and backfilled by the gangue compaction and throwing device. A tracked walking mechanism is provided at the bottom of the head frame. The coal mining head device and the gangue compaction and throwing device are detachably connected to the head frame; Each set of transfer devices includes a transfer frame, which contains a transfer and conveying mechanism, including a bulk coal conveying belt and a gangue conveying belt. The bottom of the transfer frame is equipped with a crawler walking mechanism. The feed end of the bulk coal conveyor belt of the second set of transfer devices is located below the discharge end of the bulk coal conveyor belt of the first set of transfer devices. The mined coal powder and gangue are transported outward via the bulk coal conveyor belt. The discharge end of the gangue conveyor belt of the second set of transfer devices is located above the feed end of the gangue conveyor belt of the first set of transfer devices. The backfilled gangue is transported inward via the gangue conveyor belt. The transfer frames can be detachably connected to each other, and to the head frame; The coal mining head device, gangue compaction and throwing device, tracked walking mechanism, bidirectional reversible conveying mechanism, and transfer conveying mechanism are controlled by PLC.

[0006] Furthermore, the coal mining head device includes a first frame, a head body, an adjusting bracket, and a rotation adjusting device. The head body is located at the outer end of the adjusting bracket, and the inner end of the adjusting bracket is rotatably connected to the first frame. The adjusting bracket is rotated and adjusted by the rotation adjusting device to expand the working space of the head body. The first frame and the head frame are detachably connected.

[0007] Furthermore, the gangue compaction and throwing device includes a second frame, a compaction head, and a telescopic assembly. The compaction head is fixedly connected to the outer end of the telescopic assembly, and the inner end of the telescopic assembly is fixedly connected to the second frame. Driven by the telescopic assembly, the compaction head completes the gangue backfilling and compaction operation. The second frame and the head frame are detachably connected.

[0008] Furthermore, a shovel frame is provided at the front end of the machine head frame.

[0009] Furthermore, the head frame and transfer frame adopt a 20mm FOPS fully enclosed variable cross-section self-supporting box.

[0010] The present invention has the following beneficial effects: This invention provides a fully automatic coal mining and filling machine for slope pressing. (1) The track walking mechanism replaces the original machine head dragging mode. Multi-module millimeter-level synchronization, and the track locks instantly when the collapse occurs, without secondary failures such as module squeezing and pipeline tearing. (2) The machine head frame and transfer frame adopt a 20mm FOPS fully enclosed variable cross-section self-supporting box, which is suitable for coal seams of 2.0 to 6.0m. It completely eliminates the need for a complete set of roadway support and resists the impact of graded roof collapse from the hardware source. There is no need to reserve protective coal pillars. The coal resource recovery rate of the slope is increased from 40% to 60% to more than 90%. (3) One set of equipment replaces the traditional two sets of equipment for coal mining and filling. The equipment procurement cost is reduced by 40%. 100% of the gangue is filled in the mine on-site, permanently eliminating the environmental hazards of gangue mountains. (4) Through PLC fully automatic collaborative control, remote wireless operation is achieved. There are no operators inside, and the casualties of roof collapse are completely eliminated. Attached Figure Description

[0011] Figure 1 A schematic diagram of the working status of a fully automated coal mining and filling machine for slope coal pressing; Figure 2 A schematic diagram of the fully automated integrated mining and filling machine for slope coal pressing during coal mining operations; Figure 3 A schematic diagram of the structure of the fully automatic integrated mining and backfilling machine for slope coal pressing during backfilling; Figure 4 This is a schematic diagram of the rotation adjustment device.

[0012] In the diagram: 1-Headframe, 2-Coal mining head device, 3-Gange compaction and throwing device, 4-Loose coal collection belt, 5-Gange throwing belt, 6-Crawler walking mechanism, 7-Shovel frame, 8-Mining head body, 9-Adjusting support, 10-Compactor head, 11-Telescopic component, 12-Transfer frame, 13-Loose coal conveyor belt, 14-Gange conveyor belt, 15-Adjusting motor, 16-Drive gear, 17-Driven gear, 18-Protective cover, 19-First frame. Detailed Implementation

[0013] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0014] As shown in the figure, a fully automatic integrated mining and filling machine for slope coal pressing includes a machine head assembly and multiple sets of transfer devices; The machine head assembly includes a machine head frame 1 and a dual-station operating head. The dual-station operating head includes a coal mining and tunneling head device 2 and a gangue compaction and throwing device 3. The machine head frame 1 is equipped with a bidirectional reversible conveying mechanism, which includes a loose coal collection belt 4 and a gangue throwing belt 5. The loose coal collection belt 4 conveys coal powder and gangue mined by the coal mining and tunneling head device 2 from the inside to the outside, while the gangue throwing belt 5 conveys gangue that has had its coal powder manually removed from the outside to the inside. The gangue is then compacted and backfilled by the gangue compaction and throwing device 3. A crawler-mounted walking mechanism 6 is located at the bottom of the machine head frame 1. A shovel frame 7 is located at the front end of the machine head frame 1. The loose coal collection belt 4 and the gangue throwing belt 5 are controlled by a PLC.

[0015] The coal mining head device 2 and the gangue compaction and throwing device 3 are detachably connected to the head frame 1; The coal mining head device 2 includes a first frame, a head body 8, an adjusting support 9, and a rotation adjustment device. The head body 8 is located at the outer end of the adjusting support 9, and the inner end of the adjusting support 9 is rotatably connected to the first frame. The adjusting support 9 is rotated and adjusted by the rotation adjustment device to expand the working space of the head body 8. The first frame and the head frame 1 are detachably connected. The head body 8 is controlled by a PLC.

[0016] In one embodiment, the rotation adjustment device includes an adjustment motor 15 and a drive gear 16. The two sides of the adjustment bracket are rotatably connected to the first frame via a rotating shaft. A driven gear 17 is provided on one side of the rotating shaft. The drive gear 16 is connected to the output end of the adjustment motor 15, and the drive gear 16 meshes with the driven gear 17. The adjustment motor 15 is connected to the first frame 19. A protective cover 18 is fitted over the outside of the rotation adjustment device. The protective cover 18 is fixedly connected to the rotating shaft. The adjustment motor 15 is controlled by a PLC.

[0017] The gangue compaction and throwing device 3 includes a second frame, a compaction head 10, and a telescopic component 11. The compaction head 10 is fixedly connected to the outer end of the telescopic component 11, and the inner end of the telescopic component 11 is fixedly connected to the second frame. Under the drive of the telescopic component 11, the compaction head 10 completes the gangue backfilling and compaction operation. The second frame and the head frame 1 are detachably connected. The telescopic component 11 is controlled by a PLC.

[0018] Each set of transfer devices includes a transfer frame 12, within which a transfer conveying mechanism is installed. The transfer conveying mechanism includes a bulk coal conveyor belt 13 and a gangue conveyor belt 14. A crawler-mounted walking mechanism 6 is installed at the bottom of the transfer frame 12. The feed end of the bulk coal conveyor belt 13 of the latter set of transfer devices is located below the discharge end of the bulk coal conveyor belt 13 of the former set of transfer devices, and the mined coal powder and gangue are transported outward via the bulk coal conveyor belt 13. The discharge end of the gangue conveyor belt 14 of the latter set of transfer devices is located above the feed end of the gangue conveyor belt 14 of the former set of transfer devices, and the backfilled gangue is transported inward via the gangue conveyor belt 14. The bulk coal conveyor belt 13 and the gangue conveyor belt 14 are controlled by a PLC.

[0019] In one embodiment, the transfer frame 12 is detachably connected to each other and to the head frame 1. This connection can be achieved via multiple connecting plates, with the transfer frame, head frame, and connecting plates connected by expansion bolts.

[0020] In one embodiment, the head frame 1 and the transfer frame 12 adopt a 20mm FOPS fully enclosed variable cross-section self-supporting box. The 20mm FOPS fully enclosed variable cross-section self-supporting box is a closed protective chamber with 20mm protective steel plate, which is suitable for coal seams of 2.0 to 6.0m and completely eliminates the need for complete roadway support.

[0021] The coal mining head device 2, the gangue compaction and throwing device 3, and the tracked walking mechanism 6 are controlled by a PLC.

[0022] The mining steps of the aforementioned fully automated coal mining and filling machine for slope pressing include: Step 1: Operation of the tunneling and coal mining subsystem; switch the coal mining mode, the bulk coal collection belt 4 and bulk coal conveying belt 13 operate, the whole machine synchronously tunnels inward at low speed, the box body is self-supporting, the maximum open roof distance of the mining chamber is ≤0.8m, and the raw coal is transported out continuously in a sealed manner; adjust the number of transfer devices according to the tunneling depth; Step 2: Operation of the working condition switching subsystem; tunnel to the design depth, retreat, dismantle the coal mining head device 2, and replace it with the gangue compaction and throwing device 3. The total working condition switching time is ≤8min. Step 3: Layered filling and compaction subsystem operation; crushed and screened gangue with a particle size ≤100mm, gangue throwing belt 5 and gangue conveyor belt 14 are reversed to the machine head, gangue compaction and throwing device 3 achieves 400-600mm layered compaction, set an adjustable filling step distance of 2-8m, the whole machine synchronously retreats in sections, "filling one section and retreating one section" cycle until the machine head is completely withdrawn; Step 4: Grouting and curing process; After the whole machine is removed, cement-based grout is injected along the pre-buried pipeline and cured for 7 days to form an integral filling support.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A fully automatic integrated mining and filling machine for slope coal pressing, characterized in that: Includes the head assembly and multiple sets of transfer devices; The head assembly includes a head frame (1) and a dual-station working head. The dual-station working head includes a coal mining and tunneling head device (2) and a gangue compaction and throwing device (3). The head frame (1) is equipped with a bidirectional reversible conveying mechanism, which includes a loose coal collection belt (4) and a gangue throwing belt (5). The loose coal collection belt (4) conveys the coal powder and gangue mined by the coal mining and tunneling head device (2) from the inside to the outside. The gangue throwing belt (5) conveys the gangue that has been manually screened to remove coal powder from the outside to the inside. The gangue is then compacted and backfilled by the gangue compaction and throwing device (3). The bottom of the head frame (1) is equipped with a tracked walking mechanism (6). The coal mining head device (2) and the gangue compaction and throwing device (3) are detachably connected to the head frame (1); Each set of transfer devices includes a transfer frame (12), and a transfer conveying mechanism is provided inside the transfer frame (12). The transfer conveying mechanism includes a bulk coal conveying belt (13) and a gangue conveying belt (14). A crawler walking mechanism (6) is provided at the bottom of the transfer frame (12). The feed end of the bulk coal conveyor belt (13) of the rear transfer device is located below the discharge end of the bulk coal conveyor belt (13) of the front transfer device. The mined coal powder and gangue are transported outward via the bulk coal conveyor belt (13). The discharge end of the gangue conveyor belt (14) of the rear transfer device is located above the feed end of the gangue conveyor belt (14) of the front transfer device. The backfilled gangue is transported inward via the gangue conveyor belt (14). The transfer frame (12) is detachably connected to each other and to the head frame (1). The coal mining head device (2), gangue compaction and throwing device (3), track walking mechanism (6), bidirectional reversible conveying mechanism, and transfer conveying mechanism are controlled by PLC.

2. The fully automatic integrated mining and filling machine for slope coal pressing as described in claim 1, characterized in that: The coal mining tunneling head device (2) includes a first frame, a tunneling head body (8), an adjusting bracket (9), and a rotation adjusting device. The tunneling head body (8) is located at the outer end of the adjusting bracket (9), and the inner end of the adjusting bracket (9) is rotatably connected to the first frame. The adjusting bracket (9) is rotated and adjusted by the rotation adjusting device to expand the working space of the tunneling head body (8). The first frame and the head frame (1) are detachably connected.

3. The fully automatic integrated mining and filling machine for slope coal pressing as described in claim 1, characterized in that: The gangue compaction and throwing device (3) includes a second frame, a compaction head (10), and a telescopic component (11). The compaction head (10) is fixedly connected to the outer end of the telescopic component (11), and the inner end of the telescopic component (11) is fixedly connected to the second frame. Under the drive of the telescopic component (11), the compaction head (10) completes the gangue backfilling and compaction operation. The second frame and the head frame (1) are detachably connected.

4. The fully automatic integrated mining and filling machine for slope coal pressing as described in claim 1, characterized in that: The front end of the machine head frame (1) is equipped with a shovel frame (7).

5. The fully automatic integrated mining and filling machine for slope coal pressing as described in claim 1, characterized in that: The head frame (1) and the transfer frame (12) adopt a 20mm FOPS fully enclosed variable cross-section self-supporting box.

6. The fully automatic integrated mining and filling machine for slope coal pressing as described in claim 1, characterized in that: The mining steps using the fully automatic integrated mining and filling machine for slope coal pressing as described in any one of claims 1-5 include: Step 1: Operation of the tunneling and coal mining subsystem; switch the coal mining conditions, the loose coal collection belt (4) and the loose coal conveying belt (13) are running, the whole machine is synchronously tunneling inward at low speed, the box body is self-supporting, the maximum empty roof distance of the mining chamber is ≤0.8m, and the raw coal is transported out continuously in a sealed manner; adjust the number of transfer devices according to the tunneling depth; Step 2: Operation of the working condition switching subsystem; tunnel to the design depth, retreat, dismantle the coal mining head device (2), replace the gangue compaction and throwing device (3), the total working condition switching time is ≤8min; Step 3: Layered filling and compaction subsystem operation; crushed and screened gangue with a particle size ≤100mm, gangue throwing belt (5) and gangue conveyor belt (14) are transported in reverse to the machine head, gangue compaction and throwing device (3) achieves 400~600mm layered compaction, set an adjustable filling step distance of 2~8m, the whole machine synchronously retreats in sections, "fill a section, retreat a section" cycle until the machine head is completely withdrawn; Step 4: Grouting and curing process; After the whole machine is removed, cement-based grout is injected along the pre-buried pipeline and cured for 7 days to form an integral filling support.

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