Continuous mining and continuous filling mining method for double-wing working face

Abstract

The invention discloses a continuous mining and continuous filling mining method for a double-wing working face, which relates to the technical field of coal mining and comprises the following steps: dividing a coal seam into a first half part and a second half part, and respectively dividing the first half part and the second half part into a plurality of first branch roadways and second branch roadways, tunneling mechanisms and cooperation mechanisms are arranged on the two sides of the first branch roadway and the two sides of the second branch roadway correspondingly; the tunneling mechanism drills and conducts a first branch roadway through a drill rod, and the drill rod is supported through the cooperation mechanism; the tunneling mechanism drives the drill rod to return to conduct tunneling conduction on the first branch roadway; the through first branch roadway is filled; the tunneling mechanism repeatedly carries out the operation through the drill rod; the tunneling mechanism and the cooperation mechanism walk to the two sides of the next first branch roadway and the two sides of the next second branch roadway, and the steps are repeated. According to the continuous mining and continuous filling mining method for the double-wing working face, supporting personnel do not need to enter the branch roadways for supporting, and the mining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and in particular to a continuous mining and filling mining method of a double-wing working face. Background Art

[0002] Continuous mining and continuous filling is a method of arranging the working face by combining the ventilation management of the longwall working face and the integrated mining and excavation of the shortwall working face. No comprehensive mining equipment is arranged on the working face, but a continuous miner or a tunneling machine is used to complete the mining process of the coal on the working face. In the actual mining process, a double-wing working face arrangement can be adopted. However, when mining in the branch tunnel, the existing double-wing working face mining process usually requires entering the branch tunnel for support, and the mining process is cumbersome and the mining efficiency is low. Summary of the invention

[0003] The purpose of the present invention is to provide a continuous mining and filling mining method for a double-wing working face to solve the problems existing in the above-mentioned prior art and improve mining efficiency.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a continuous mining and filling mining method for a double-wing working face, comprising the steps of:

[0006] Divide the coal seam into a first half and a second half, and divide the first half and the second half into a plurality of first branch lanes and second branch lanes, respectively, and arrange excavation mechanisms and coordination mechanisms on both sides of the first branch lane and the second branch lane;

[0007] The excavation mechanism uses a drill rod to drill and open the first branch lane. After drilling and opening, the drill rod is supported by the coordination mechanism. Then, the excavation mechanism drives the drill rod to return to excavate and open the first branch lane. The first branch lane that has been opened is filled.

[0008] The excavation mechanism uses the drill rod to drill and connect the second branch lane. After drilling and connecting, the drill rod is supported by the coordination mechanism. Then, the excavation mechanism drives the drill rod to return to drill and connect the second branch lane. The connected second branch lane is filled.

[0009] The excavation mechanism and the coordination mechanism move to both sides of the next first branch tunnel and the next second branch tunnel, and repeat the above steps, first drilling and excavating the first branch tunnel and filling it, and then drilling and excavating the second branch tunnel and filling it.

[0010] Preferably, the first half and the second half are separated by a middle tunnel, the first branch tunnel is flanked by the middle tunnel and the first tunnel, and the second branch tunnel is flanked by the middle tunnel and the second tunnel; the excavation mechanism is arranged in the middle tunnel, and the coordination mechanism is arranged in both the first tunnel and the second tunnel.

[0011] Preferably, the excavation mechanism drills and connects the first branch tunnel or the second branch tunnel through the guide hole drill bit on the drill rod; after the first branch tunnel or the second branch tunnel is drilled and connected, the guide hole drill bit is replaced with a reaming drill bit, and the excavation mechanism drives the drill rod to return and excavates and connects the first branch tunnel or the second branch tunnel through the reaming drill bit.

[0012] Preferably, the drilling diameter of the pilot drill bit is smaller than the drilling diameter of the reaming drill bit.

[0013] Preferably, the excavation mechanism includes an excavation traveling component and a drilling rig, the drilling rig is arranged on the excavation traveling component, the drill rod is arranged on the drilling rig, the excavation traveling component is used to travel in the middle tunnel, and the drilling rig can drive the drill rod to conduct the first branch tunnel or the second branch tunnel.

[0014] Preferably, the cooperative mechanism includes a cooperative walking component and a support portion, the support portion is arranged on the cooperative walking component, the cooperative walking component is used to walk in the first tunnel or the second tunnel, and the support portion can support the drill rod.

[0015] Preferably, the excavating walking component and the cooperative walking component are configured as tracks or rubber wheels.

[0016] Preferably, the support portion is configured as a lifting bracket, and the lifting bracket can adjust the support height.

[0017] Preferably, the excavation mechanism and the cooperation mechanism move synchronously.

[0018] Preferably, the cooperative mechanism further comprises a carrying component, wherein the carrying component is arranged on the cooperative traveling component, and the carrying component can hold coal.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The continuous mining and filling mining method of the double-wing working face provided by the present invention is characterized in that tunneling mechanisms and cooperative mechanisms are arranged on both sides of the first branch tunnel and the second branch tunnel. The tunneling mechanism first drills and connects the first branch tunnel from one side, and after drilling and connection, the drill rod is supported on the other side by the cooperative mechanism, so that there is no need for support personnel to enter the first branch tunnel. Then the tunneling mechanism controls the return stroke of the drill rod to tunnel and connect the first branch tunnel, and then fills the first branch tunnel to realize the mining of the first branch tunnel, which can improve the mining efficiency. Similarly, after the mining of the first branch tunnel is completed, the second branch tunnel at the same position in the second half is drilled and connected, and then tunneled and filled to realize the mining of the second branch tunnel. Then the tunneling structure and the cooperative mechanism move to mine the next first branch tunnel and the second branch tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic flow chart of the mining method provided in Example 1;

[0023] Figure 2 A schematic diagram of drilling and conducting the drill rod provided in Example 1;

[0024] Figure 3 A schematic diagram of the drill rod provided in the first embodiment for conducting return excavation;

[0025] Figure 4 This is a schematic diagram of the movement of the excavation mechanism and the cooperative mechanism provided in Example 1.

[0026] In the figure: 1-first half; 2-second half; 3-first branch lane; 4-second branch lane; 5-excavation mechanism; 6-cooperative mechanism; 7-drill rod; 8-middle lane; 9-first lane; 10-second lane; 11-pilot drill bit; 12-expansion drill bit. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The purpose of the present invention is to provide a continuous mining and filling mining method for a double-wing working face to solve the problems existing in the above-mentioned prior art and improve mining efficiency.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] This embodiment provides a continuous mining and filling mining method for a double-wing working face, comprising the steps of:

[0032] The coal seam is divided into a first half 1 and a second half 2, and the first half 1 and the second half 2 are respectively divided into a plurality of first branch tunnels 3 and second branch tunnels 4, and a tunneling mechanism 5 and a coordination mechanism 6 are respectively arranged on both sides of the first branch tunnel 3 and the second branch tunnel 4; the interval width and the length of adjacent first branch tunnels 3 and adjacent second branch tunnels 4 are determined according to the actual mining situation;

[0033] The excavation mechanism 5 drills and conducts a first branch lane 3 through the drill rod 7. After the drilling is completed, the drill rod 7 is supported by the coordination mechanism 6. Then the excavation mechanism 5 drives the drill rod 7 to return to excavate and conduct the first branch lane 3. The first branch lane 3 that has been penetrated is filled.

[0034] The excavation mechanism 5 drills and conducts a second branch lane 4 through the drill rod 7. After the drilling is conducted, the drill rod 7 is supported by the coordination mechanism 6. Then the excavation mechanism 5 drives the drill rod 7 to return to conduct the excavation of the second branch lane 4. The second branch lane 4 that has been penetrated is filled.

[0035] The excavation mechanism 5 and the coordination mechanism 6 move to both sides of the next first branch tunnel 3 and the next second branch tunnel 4, and repeat the above steps, first drilling and excavating the first branch tunnel 3 and filling it, and then drilling and excavating the second branch tunnel 4 and filling it.

[0036] See also Figure 1 and Figure 4 , excavation mechanisms 5 and coordination mechanisms 6 are arranged on both sides of the first branch tunnel 3 and the second branch tunnel 4. The excavation mechanism 5 first drills and connects the first branch tunnel 3 from one side, and then supports the drill rod 7 on the other side through the coordination mechanism 6 after drilling and connection, so that there is no need for support personnel to enter the first branch tunnel 3, and then the excavation mechanism 4 controls the drill rod 7 to return to excavate and connect the first branch tunnel 3, and then fill the first branch tunnel 3 to realize the mining of the first branch tunnel 3, which can improve the mining efficiency; similarly, after the first branch tunnel 3 is mined, the second branch tunnel 4 at the same position in the second half is drilled and connected, and excavated and connected and filled to realize the mining of the second branch tunnel 4; then the excavation structure 5 and the coordination mechanism 6 move to mine the next first branch tunnel 3 and the second branch tunnel 4.

[0037] Among the optional schemes of this embodiment, it is more preferred that the first half 1 and the second half 2 are separated by an intermediate tunnel 8, the first branch tunnel 3 is flanked by the intermediate tunnel 8 and the first tunnel 9, and the second branch tunnel 4 is flanked by the intermediate tunnel 8 and the second tunnel 10; the excavation mechanism 5 is arranged in the intermediate tunnel 8, and the first tunnel 9 and the second tunnel 10 are both provided with a coordination mechanism 6; by only arranging a excavation mechanism 5 in the intermediate tunnel 8, and cooperating through the coordination mechanism 6 in the first tunnel 9 and the second tunnel 10, the mining of the first branch tunnel 3 and the second branch tunnel 4 can be met.

[0038] Among the optional solutions of this embodiment, it is more preferred to refer to Figure 2 and Figure 3 The excavation mechanism 5 drills and connects the first branch lane 3 or the second branch lane 4 through the guide hole drill bit 11 on the drill rod 7; after the first branch lane 3 or the second branch lane 4 is drilled and connected, the guide hole drill bit 11 is replaced with the reaming drill bit 12, and the excavation mechanism 5 drives the drill rod 7 to return and excavates and connects the first branch lane 3 or the second branch lane 4 through the reaming drill bit 12; by drilling and connecting first and then returning and excavating and connecting, the drilling and connecting can detect in advance whether there are hidden dangers in the first branch lane 3 or the second branch lane 4, thereby reducing the risk of accidents; the cooperation between the drill rod 7 and the guide hole drill bit 11 and the reaming drill bit 12 are all conventional detachable connection methods, which will not be described in detail here.

[0039] In the optional scheme of this embodiment, it is more preferred that the drilling diameter of the guide hole drill bit 11 is smaller than the drilling diameter of the reaming drill bit 12; drilling and guiding by the small-diameter guide hole drill bit 11 can detect in advance whether there are hidden dangers in the branch tunnel 1, thereby reducing the risk of accidents; specifically, the models of the guide hole drill bit 11 and the reaming drill bit 12 are determined according to actual needs.

[0040] In the optional scheme of this embodiment, it is more preferred that the excavation mechanism 5 includes an excavation traveling component and a drilling rig, the drilling rig is arranged on the excavation traveling component, the drilling rig is provided with a drill rod 7, the excavation traveling component is used to travel in the middle tunnel 8, and the drilling rig can drive the drill rod 7 to conduct the first branch tunnel 3 or the second branch tunnel 4; wherein the cooperation between the drilling rig and the drill rod 4 is a conventional means, which will not be elaborated herein; in order to facilitate the conversion of the drilling rig between the first branch tunnel 3 and the second branch tunnel 4, a rotating platform can be provided on the excavation traveling component, and the drilling rig is arranged on the rotating platform, and the conversion between the first branch tunnel 3 and the second branch tunnel 4 is realized by controlling the overall rotation of the drilling rig.

[0041] In the optional scheme of this embodiment, it is more preferred that the cooperative mechanism 6 includes a cooperative walking component and a supporting part, the supporting part is arranged on the cooperative walking component, the cooperative walking component is used to walk in the first tunnel 9 or the second tunnel 10 to cooperate with the excavation mechanism 5, and the supporting part can support the drill rod 7 to achieve support for the first tunnel 9 or the second tunnel 10.

[0042] In the optional scheme of this embodiment, it is more preferred that the excavating walking parts and the cooperative walking parts are set as tracks or rubber wheels; in addition, it is not limited to the above-mentioned mechanism, and it can achieve walking in the tunnel.

[0043] In the optional scheme of this embodiment, it is more preferred that the support part is configured as a lifting bracket, and the lifting bracket can adjust the support height; specifically, the lifting bracket can adopt a conventional hydraulic lifting bracket, which is fixedly set on the working platform of the cooperative walking component, and can adapt to the support of drill rods 7 of different heights by adjusting its own height. By supporting the drill rods 7, the replacement of the drill bit on the drill rods 7 is facilitated.

[0044] In the optional scheme of this embodiment, it is more preferred that the excavation mechanism 5 and the cooperation mechanism 6 move synchronously; by controlling the walking distance and the walking speed, the synchronous walking is achieved to meet the mining coordination with the next branch tunnel.

[0045] In the optional scheme of this embodiment, it is more preferred that the cooperative mechanism 6 also includes a carrying component, which is arranged on the cooperative walking component, and the carrying component can hold the coal; specifically, the carrying component can be set as a tipping bucket, which can be flipped on the working platform of the cooperative walking component, and can hold the fallen coal and flip it to unload.

[0046] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A continuous mining and filling mining method for a double-wing working face, characterized in that: Includes steps: The coal seam is divided into a first half (1) and a second half (2), and the first half (1) and the second half (2) are respectively divided into a plurality of first branch tunnels (3) and second branch tunnels (4), and a tunneling mechanism (5) and a coordination mechanism (6) are respectively arranged on both sides of the first branch tunnel (3) and the second branch tunnel (4); The excavation mechanism (5) drills and connects the first branch tunnel (3) through the drill rod (7). After the drilling is completed, the drill rod (7) is supported by the coordination mechanism (6); then the excavation mechanism (5) drives the drill rod (7) to return to drill and connect the first branch tunnel (3); and the first branch tunnel (3) that has been connected is filled; The excavation mechanism (5) drills and connects the second branch tunnel (4) through the drill rod (7). After the drilling is completed, the drill rod (7) is supported by the coordination mechanism (6); then the excavation mechanism (5) drives the drill rod (7) to return to drill and connect the second branch tunnel (4); and the connected second branch tunnel (4) is filled; The excavation mechanism (5) and the coordination mechanism (6) move to both sides of the next first branch tunnel (3) and the next second branch tunnel (4), and repeat the above steps, first drilling and excavating the first branch tunnel (3) and filling it, and then drilling and excavating the second branch tunnel (4) and filling it.

2. The continuous mining and filling mining method of the double-wing working face according to claim 1 is characterized in that: The first half (1) and the second half (2) are separated by an intermediate tunnel (8); the first branch tunnel (3) is flanked by the intermediate tunnel (8) and the first tunnel (9); the second branch tunnel (4) is flanked by the intermediate tunnel (8) and the second tunnel (10); the excavation mechanism (5) is arranged in the intermediate tunnel (8); and the coordination mechanism (6) is arranged in both the first tunnel (9) and the second tunnel (10).

3. The continuous mining and filling mining method of the double-wing working face according to claim 2 is characterized in that: The excavation mechanism (5) drills and connects the first branch tunnel (3) or the second branch tunnel (4) through the guide drill bit (11) on the drill rod (7); after the first branch tunnel (3) or the second branch tunnel (4) is drilled and connected, the guide drill bit (11) is replaced with a reaming drill bit (12), and the excavation mechanism (5) drives the drill rod (7) to return and excavates and connects the first branch tunnel (3) or the second branch tunnel (4) through the reaming drill bit (12).

4. The continuous mining and filling mining method of the double-wing working face according to claim 3 is characterized in that: The drilling diameter of the pilot drill bit (11) is smaller than the drilling diameter of the reaming drill bit (12).

5. The continuous mining and filling mining method of the double-wing working face according to claim 3 is characterized in that: The excavation mechanism (5) comprises an excavation running component and a drilling rig, wherein the drilling rig is arranged on the excavation running component, the drilling rig is provided with the drill rod (7), the excavation running component is used to travel in the middle tunnel (8), and the drilling rig can drive the drill rod (7) to conduct the first branch tunnel (3) or the second branch tunnel (4).

6. The continuous mining and filling mining method of the double-wing working face according to claim 5 is characterized in that: The cooperative mechanism (6) comprises a cooperative walking component and a support portion, wherein the support portion is arranged on the cooperative walking component, the cooperative walking component is used to walk in the first tunnel (9) or the second tunnel (10), and the support portion can support the drill rod (7).

7. The continuous mining and filling mining method of the double-wing working face according to claim 6 is characterized by: The excavating walking component and the cooperative walking component are configured as tracks or rubber wheels.

8. The continuous mining and filling mining method of the double-wing working face according to claim 6 is characterized by: The support portion is configured as a lifting bracket, and the lifting bracket can adjust the support height.

9. The continuous mining and filling mining method of double-wing working face according to claim 1 is characterized in that: The excavation mechanism (5) and the coordination mechanism (6) move synchronously.

10. The continuous mining and filling mining method of double-wing working face according to claim 6, characterized in that: The cooperative mechanism (6) further comprises a carrying component, wherein the carrying component is arranged on the cooperative traveling component and the carrying component is capable of containing coal.

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