Fully mechanized coal mining face roadway two-stage bottom cleaning transportation system

Abstract

A two-stage bottom cleaning transportation system for a fully mechanized coal mining face roadway comprises a belt conveyor, a belt conveyor self-moving tail, a reversed loader and a forepoling. The forepoling is arranged on a working face to support a top plate at an advanced section; the reversed loader is arranged in a middle gear of the forepoling; the reversed loader is in sliding lap joint with the self-moving tail of the belt conveyor; the belt conveyor is connected with the front part of the belt conveyor self-moving tail and is in lap joint with the reversed loader; a fixed bottom cleaning device is arranged at the lower part of the bridge starting section of the reversed loader; a belt lifting device is arranged at the lower part of the belt conveyor; a breaking, loading and transferring all-in-one machine is arranged on the side of the pedestrian path in the roadway. The device can adapt to the operation requirement of a narrow space of a roadway, can crush, collect and transfer floor heaves at the lower part of a belt conveyor and the lower part of a bridge starting section of a reversed loader, can replace manpower to repair the roadway, reduces the labor intensity of workers, improves the cleaning efficiency, ensures smooth pushing and mining of a working face, and is beneficial to safe and efficient production of the working face of a coal mine.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fully mechanized coal mining equipment technical field, specifically speaking, relates to a kind of fully mechanized working face roadway double-stage bottom cleaning transport system. BACKGROUND

[0002] Nowadays coal mine, due to complex geological conditions, mining difficulty increases, especially for complex environment, there is no special equipment to replace manpower to operate.For coal mine, with the increase of mining depth, roadway pressure is increasingly greater, roadway deformation is increasingly obvious, and more and more manpower is needed to repair roadway, while the number of operating personnel in coal mine is less and less, and the mechanical roadway repair is urgently needed.At present, the safety guarantee, liberation of manpower, cost reduction and efficiency improvement of roadway deformation repair in coal mining are urgently needed to be solved.

[0003] Roadway is a passageway for transportation, ventilation, drainage and other purposes during underground mining, and a large number of equipment such as transfer machine, crusher, belt conveyor and advanced support are arranged in the roadway, which is also a passageway for pedestrians and auxiliary transportation.When the floor heave is large, the floor will be uneven, which will cause the belt conveyor to touch the bottom and the transfer machine to advance difficultly, affecting the normal advance of the working face.

[0004] At present, the bottom cleaning of most fully mechanized working face transport roadway is completely handled by manual operation of wind pick with large drill, which not only has high labor intensity and dangerous working environment, but also has poor efficiency of manual roadway repair.Especially when the belt conveyor starts, the body of the transport belt conveyor must be hung on the roof with wire rope first, and then the wire rope must be tied before the chain can be removed, which is complex and troublesome, and personnel need to climb to the roof to fix the wire rope.

[0005] Furthermore, the existing coal mine roadway repair device has single function and large size, which is difficult to adapt to the operation requirements of multiple equipment and narrow space in machine roadway, and the operation parts need to be frequently replaced for crushing or slag removal in actual operation, which is inconvenient to operate. UTILITY MODEL CONTENT

[0006] The utility model aims at the deficiencies of prior art, and provides a kind of fully mechanized working face roadway double-stage bottom cleaning transport system, which can adapt to the operation requirements of narrow space in machine roadway, can crush, collect and transport the bottom heave of the lower part of belt conveyor and the lower part of transfer machine bridge section, can replace manpower to repair roadway, reduce the labor intensity of workers, improve cleaning efficiency, ensure the smooth advance of working face, and is beneficial to the safe and efficient production of coal mine working face.

[0007] In order to achieve the above object, the utility model adopts the technical scheme: a kind of double-stage clear bottom transport system of roadway in fully mechanized coal face, with the side of working face outward as front side, including belt conveyor, belt conveyor self-moving machine tail, transfer machine and advance support being arranged in roadway from front to back and close to roadway vertical side, other side in roadway is pedestrian passage side;The advance support is arranged in working face and carries out advance section roof support;The transfer machine is arranged in the middle of the advance support, for the coal produced in working face is transferred to belt conveyor, the transfer machine and the advance support are each fulcrum to realize step self-moving, the transfer machine and the belt conveyor self-moving machine tail sliding lap joint;The front part of the belt conveyor and the belt conveyor self-moving machine tail is connected with the transfer machine and lap joint, for the coal transported by the transfer machine is transported away;

[0008] The lower part of the transfer machine bridge section is provided with a fixed cleaning device for crushing, loading and lifting the front bottom drum of the transfer machine to the transfer chute;

[0009] The lower part of the belt conveyor is provided with a belt lifting device that can move along the line at the lower part of the belt conveyor and lift a section of the belt conveyor to provide enough space for cleaning operation;

[0010] The pedestrian passage side in the roadway is provided with a crushing and loading transfer integrated machine that can walk along the line on one side of the belt conveyor, and the crushing and loading transfer integrated machine is used to clean the bottom drum of the raised part of the belt conveyor and load the gangue onto the belt conveyor.

[0011] Based on the above, the crushing and loading transfer integrated machine includes a vehicle body, a crushing and excavating part, a loading part, a transfer part and an adjustable transfer belt;The vehicle body can walk on the pedestrian passage side in the roadway;The crushing and excavating part is arranged at the front of the vehicle body, for crushing and excavating the bottom drum along the line in the roadway or excavating to the front side of the loading part;The loading part is arranged at the front end of the vehicle body, for loading the gangue excavated by the crushing and excavating part into the vehicle body;The transfer part is arranged in the vehicle body, for transferring the gangue loaded into the vehicle body to the adjustable transfer belt;The adjustable transfer belt is arranged at the rear of the vehicle body, and its inclination angle and position are adjustable, the front part of the adjustable transfer belt is lap jointed with the transfer part, the rear part of the adjustable transfer belt is lap jointed with the raised part of the belt conveyor, and the adjustable transfer belt is used to transfer the gangue transferred by the transfer part to the belt conveyor.

[0012] Based on the above, the belt lifting device includes a lifting oil cylinder, a connecting seat and a track, the upper part of the lifting oil cylinder is hinged with a sliding block slidingly arranged on the lower slide on both sides of the belt conveyor, the lower part of the lifting oil cylinder is hinged with the connecting seat, the connecting seat can slide along the track and realize step self-moving with the track as fulcrum.

[0013] Based on the above, the connecting seat is connected with the track, a self-moving oil cylinder is arranged between the connecting seat and the track, a lifting jack capable of supporting on the floor and lifting the track is arranged on the connecting seat; when the lifting jack is retracted away from the floor, the track is supported on the floor, and the self-moving oil cylinder can drive the connecting seat to move along the track; when the lifting jack is extended to be supported on the floor, the track can be lifted away from the floor, and the self-moving oil cylinder can drive the track to move relative to the connecting seat.

[0014] Based on the above, the belt lifting device comprises a lifting oil cylinder and a track, the upper portion of the lifting oil cylinder is hinged to a sliding block arranged on the lower portion sliding way on both sides of the belt conveyor, the lower portion of the lifting oil cylinder is hinged to the track, the track is arranged on the lower side of the belt conveyor along the length direction of the belt conveyor, and the track is connected with the vehicle body and moves with the vehicle body.

[0015] Based on the above, the middle portion of the transfer machine is further provided with a crusher for crushing coal blocks.

[0016] Based on the above, a plurality of crushing and excavating portions are arranged, and the crushing and excavating portion mainly comprises a movable arm bucket rod, a crushing head, a digging bucket and a rotating device.

[0017] Compared with the prior art, the utility model has outstanding substantial features and obvious progress, specifically, the utility model discloses a belt lifting device is arranged on the lower portion of the belt conveyor, can realize lifting a section of the belt conveyor to make enough clear bottom operation space, uses the broken and transported integrated machine to cooperate with the clear bottom operation of the lower portion of the belt conveyor, and fixed type clear bottom device is arranged on the lower portion of the transfer machine bridge section, and the front portion bottom drum of the transfer machine is cleaned, and crushing and cleaning can be simultaneously operated, thereby realizing two-stage clear bottom operation of the fully mechanized working face roadway, can adapt to the operation requirement of narrow space of machine roadway, can realize comprehensive cleaning of the roadway, guarantees the smoothness of the pedestrian passageway and the front movement of each equipment, and satisfies the efficient advancing demand of the working face. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model.

[0019] Figure 2 It is the overhead schematic diagram of the utility model.

[0020] Figure 3 It is Figure 1 It is the local amplification schematic diagram of A place in the middle.

[0021] Figure 4 It is the overhead schematic diagram of the broken and transported integrated machine of the utility model.

[0022] In the figure: 1. belt conveyor; 2. belt lifting device; 3. breaking, loading and transferring integrated machine; 4. belt conveyor self-moving tail; 5. transfer machine; 6. fixed bottom cleaning device; 7. crusher; 8. advance support; 9. working face; 10. vehicle body; 11. breaking and excavating part; 12. loading part; 13. transferring part; 14. adjustable transferring belt; 15. lifting oil cylinder; 16. track. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described in further detail below through specific embodiments.

[0024] Embodiment 1

[0025] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , a kind of fully mechanized working face roadway two-stage bottom cleaning and transportation system, including belt conveyor 1, belt lifting device 2, breaking, loading and transferring integrated machine 3, belt conveyor self-moving tail 4, transfer machine 5, fixed bottom cleaning device 6, crusher 7 and advance support 8, with the side of working face 9 to the outside as front side, the belt conveyor 1, the belt conveyor self-moving tail 4, the transfer machine 5 and the advance support 8 are sequentially arranged in roadway from front to back and close to roadway vertical side, the other side in roadway is pedestrian passageway side;

[0026] From working face 9 to the outside, first arrange the advance support 8 to carry out advance section roof support;

[0027] The transfer machine 5 is arranged in the intermediate section of the advance support 8, for transferring the coal produced by working face 9 to the belt conveyor 1, the transfer machine 5 and the advance support 8 are mutual fulcrum and realize step self-moving;

[0028] The middle part of the transfer machine 5 is provided with the crusher 7, and the crusher 7 can crush larger coal blocks, facilitate transportation and prevent blockage;

[0029] To prevent the transfer machine 5 from moving forward difficultly when floor heave is serious, the fixed bottom cleaning device 6 is arranged at the lower part of the bridge section of the transfer machine 5, the fixed bottom cleaning device 6 can crush, load and lift the front floor heave of the transfer machine 5 to the chute of the transfer machine 5, and then make the gangue be transported out with the coal;

[0030] The transfer machine 5 and the belt conveyor self-moving tail 4 are slidingly connected, and the working face 9 can be pushed forward by 10-12 knives, the belt frame is dismantled once, and the belt conveyor self-moving tail 4 is moved once;

[0031] The belt conveyor 1 is connected with the front part of the belt conveyor self-moving tail 4 and connected with the transfer machine 5, for transporting the coal transported by the transfer machine 5 away;

[0032] The lower part of the belt conveyor 1 is provided with the belt lifting device 2, which can move along the line at the lower part of the belt conveyor 1 and prop up a section of the belt conveyor 1 to create enough space for the bottom cleaning operation;

[0033] The gangue breaking and transporting integrated machine 3 is arranged at the side of the walkway in the roadway, which can walk along the line at the side of the belt conveyor 1, and is used for cleaning the bottom drum of the propped-up part of the belt conveyor 1 and loading the gangue onto the belt conveyor 1.

[0034] The fixed bottom cleaning device 6 is a roadway bottom drum breaking and cleaning system for cooperating with the transfer conveyor as disclosed in the Chinese invention patent CN2024104586311 applied by the applicant on July 2, 2024, and the specific structure and working principle will not be described here.

[0035] As shown in Figure 3 and Figure 4 The gangue breaking and transporting integrated machine 3 includes a vehicle body 10, a breaking and excavating part 11, a shoveling and loading part 12, a transporting part 13, and an adjustable transporting belt 14. The vehicle body 10 can walk at the side of the walkway in the roadway. The breaking and excavating part 11 is arranged at the front part of the vehicle body 10, which is used for breaking and excavating the bottom drum of the belt conveyor 1 along the line in the roadway or excavating to the front side of the shoveling and loading part 12. The shoveling and loading part 12 is arranged at the front end of the vehicle body 10, which is used for shoveling and loading the gangue excavated by the breaking and excavating part 11 into the vehicle body 10. The transporting part 13 is arranged in the vehicle body 10, which is used for transporting the gangue shoveling and loading into the vehicle body 10 to the adjustable transporting belt 14. The adjustable transporting belt 14 is arranged at the rear part of the vehicle body 10, and the inclination angle and position of which are adjustable. The front part of the adjustable transporting belt 14 is overlapped with the transporting part 13, and the rear part of the adjustable transporting belt 14 is overlapped with the propped-up part of the belt conveyor 1. The adjustable transporting belt 14 is used for transporting the gangue transported by the transporting part 13 to the belt conveyor 1.

[0036] As shown in Figure 1 The belt lifting device 2 includes a lifting oil cylinder 15, a connecting seat, and a track 16. The upper part of the lifting oil cylinder 15 is hinged with a sliding block arranged on the lower slide of the belt conveyor 1 at both sides. The lower part of the lifting oil cylinder 15 is hinged with the connecting seat, which can slide along the track 16 and realize self-moving by being the fulcrum of the track 16. The track 16 is arranged at the lower side of the belt conveyor 1 along the length direction of the belt conveyor 1.

[0037] The connecting seat is connected with the track 16, a lifting jack is arranged on the connecting seat and can support on the floor and lift the track 16; when the lifting jack is retracted away from the floor, the track 16 supports on the floor, and the self-moving oil cylinder can drive the connecting seat to move along the track 16; when the lifting jack supports on the floor, the track 16 can be lifted away from the floor, and the self-moving oil cylinder can drive the track 16 to move relative to the connecting seat.

[0038] The broken excavating part 11 can be provided in plurality, and in the embodiment, three broken excavating parts 11 are provided to break and excavate the floor heave on the positive side, the middle and the negative side of the roadway respectively. If there is a large gangue on the floor heave, the gangue is first broken by the broken head of the broken excavating part 11, and then excavated by the excavating bucket of the broken excavating part 11.

[0039] When the double-stage floor cleaning and transporting system of the fully-mechanized coal mining face roadway works, the broken and loading transfer machine 3 cooperates with the belt lifting device 2 to realize cleaning of the floor heave along the line of the belt conveyor 1, specifically: the belt conveyor 1 is lifted by the lifting oil cylinder 15 to provide enough space for floor cleaning, the vehicle body 10 is moved to the lifted part of the belt conveyor 1, then the broken excavating part 11 can break and excavate the floor heave along the line of the belt conveyor 1 in the roadway or excavate to the front side of the loading part 12, the loading part 12 loads the gangue excavated by the broken excavating part 11 into the vehicle body 10, the transfer part 13 transfers the gangue loaded into the vehicle body 10 to the adjustable transfer belt 14, and the adjustable transfer belt 14 transfers the gangue transferred by the transfer part 13 to the belt conveyor 1, so that the gangue is transported away by the belt conveyor 1; if the floor heave at other positions of the belt conveyor 1 needs to be cleaned, the lifting oil cylinder 15 is retracted, the lifted part of the belt conveyor 1 is lowered, and then the connecting seat, the track 16, the self-moving oil cylinder and the lifting jack cooperate to realize step self-moving of the connecting seat and the track 16 as the fulcrum, the lifting oil cylinder 15 is moved to the position where the belt conveyor 1 needs to be lifted, and then the lifting oil cylinder 15 is extended to lift the belt conveyor 1, and at the same time, the vehicle body 10 is moved to the position where the belt conveyor 1 is lifted to clean the floor;

[0040] In combination with the fixed floor cleaning device 6 arranged at the lower part of the bridge section of the transfer machine 5, the roadway can be fully cleaned, the smooth movement of the personnel passageway and each equipment is ensured, and the high-efficiency advancing requirement of the coal mining face 9 is met.

[0041] The double-stage bottom cleaning and transporting system of the fully-mechanized coal mining face roadway can adapt to the operation requirements of narrow machine-lane space, can crush, collect and transport the bottom drum of the lower part of the belt conveyor 1 and the lower part of the bridge section of the reclaimer 5, realizes simultaneous crushing and cleaning operation, can replace manual roadway repair, reduces the labor intensity of workers, improves the cleaning efficiency, ensures smooth pushing and mining of the coal mining face 9, and is favorable for safe and efficient production of the coal mining face.

[0042] Embodiment 2

[0043] Different from the embodiment 1, the belt lifting device 2 comprises a lifting oil cylinder 15 and a track 16, the upper part of the lifting oil cylinder 15 is hingedly connected with a sliding block slidingly arranged on the lower slide of the belt conveyor 1 on both sides, the lower part of the lifting oil cylinder 15 is hingedly connected with the track 16, the track 16 is arranged on the lower side of the belt conveyor 1 along the length direction of the belt conveyor 1, and the track 16 is connected with the vehicle body 10 and moves with the vehicle body 10. In this way, the structure of the belt lifting device 2 is simplified, the belt lifting device 2 can be driven by the vehicle body 10 to move along the belt conveyor 1, so that the belt conveyor 1 is lifted along the line to facilitate the bottom drum cleaning operation.

[0044] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed for protection.

Claims

1. A two-stage bottom cleaning and transportation system for a fully mechanized mining face roadway, characterized in that: With the working face facing outwards as the front side, the structure includes, from front to back, a belt conveyor, a self-moving tail section of the belt conveyor, a transfer conveyor, and an advance support, arranged sequentially within the roadway and close to the roadway's main side. The other side of the roadway is the pedestrian passage side. The advance support is positioned at the working face to provide advance section roof support. The transfer conveyor is located within the middle section of the advance support and is used to transfer coal produced at the working face to the belt conveyor. The transfer conveyor and the advance support serve as fulcrums for mutual self-movement. The transfer conveyor slides and overlaps with the self-moving tail section of the belt conveyor. The belt conveyor is connected to the front of the self-moving tail section of the belt conveyor and overlaps with the transfer conveyor to remove the coal transported by the transfer conveyor. The lower part of the bridge section of the transfer machine is equipped with a fixed bottom cleaning device for breaking, shoveling, and lifting the bottom drum of the front part of the transfer machine into the chute of the transfer machine. The lower part of the belt conveyor is equipped with a belt lifting device that can move along the lower part of the belt conveyor and support one section of the belt conveyor to create sufficient space for cleaning operations. A crushing and loading transfer machine is installed on the side of the pedestrian passage in the tunnel, which can travel along the belt conveyor. The crushing and loading transfer machine is used to clean the bottom drum of the belt conveyor support part and load gangue onto the belt conveyor.

2. The two-stage bottom cleaning and transportation system for fully mechanized mining face roadways according to claim 1, characterized in that: The integrated crushing, loading, and transferring machine includes a vehicle body, a crushing and excavating section, a loading section, a transferring section, and an adjustable transferring belt. The vehicle body can travel along the side of the pedestrian passage in the tunnel. The crushing and excavating section is located at the front of the vehicle body and is used to crush and excavate the bottom drum along the conveyor belt in the tunnel or to excavate to the front of the loading section. The loading section is located at the front end of the vehicle body and is used to load the gangue excavated by the crushing and excavating section into the vehicle body. The transferring section is located in the vehicle body and is used to transfer the gangue loaded into the vehicle body to the adjustable transferring belt. The adjustable transferring belt is located at the rear of the vehicle body and its tilt angle and position are adjustable. The front part of the adjustable transferring belt overlaps with the transferring section, and the rear part of the adjustable transferring belt overlaps with the support part of the conveyor belt. The adjustable transferring belt is used to transfer the gangue transferred from the transferring section onto the conveyor belt.

3. The two-stage cleaning and transportation system for fully mechanized mining face roadways according to claim 1 or 2, characterized in that: The belt lifting device includes a lifting cylinder, a connecting seat, and a track. The upper part of the lifting cylinder is hinged to a slider that is slidably mounted on the lower slide rails on both sides of the belt conveyor. The lower part of the lifting cylinder is hinged to the connecting seat. The connecting seat can slide along the track and move by stepping with the track as a fulcrum.

4. The two-stage bottom cleaning and transportation system for fully mechanized mining face roadways according to claim 3, characterized in that: A self-moving hydraulic cylinder connects the connecting seat and the track. The connecting seat is equipped with a lifting jack that can be supported on the base plate and lift the track. When the lifting jack retracts away from the base plate, the track is supported on the base plate, and the self-moving hydraulic cylinder can drive the connecting seat to move along the track. When the lifting jack extends and supports the base plate, it can lift the track away from the base plate, and the self-moving hydraulic cylinder can drive the track to move relative to the connecting seat.

5. The two-stage bottom cleaning and transportation system for fully mechanized mining face roadways according to claim 2, characterized in that: The belt lifting device includes a lifting cylinder and a track. The upper part of the lifting cylinder is hinged to a slider that is slidably mounted on the lower slide rails on both sides of the belt conveyor. The lower part of the lifting cylinder is hinged to the track. The track is arranged on the lower side of the belt conveyor along the length direction of the belt conveyor. The track is connected to the vehicle body and moves with the vehicle body.

6. The two-stage bottom cleaning and transportation system for fully mechanized mining face roadways according to claim 4 or 5, characterized in that: The transfer machine is also equipped with a crusher for crushing coal blocks in its middle section.

7. The two-stage bottom cleaning and transportation system for fully mechanized mining face roadways according to claim 2, characterized in that: The crushing and excavating section is provided in multiple ways, and the crushing and excavating section is mainly composed of boom stick, crushing head, bucket and slewing device.

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