阅读说明：本技术 一种煤矿煤矸同采分运充填系统及方法 (Coal mine coal and gangue simultaneous mining and separate transportation filling system and method ) 是由 王晓利 赵浩亮 蔡少朋 张武涛 王德勇 刘武强 鱼斌 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种煤矿煤矸同采分运充填系统,包括充填支架,所述充填支架的后端设置有充填刮板输送机,所述充填支架的前端下方布置有采煤机和工作面刮板输送机,所述工作面刮板输送机上设置有槽底板以及带有卸料口的槽中板,所述工作面刮板输送机一端与胶运顺槽内的顺槽胶带搭接/连接,另一端与充填支架后端的充填刮板输送机搭接/连接。该煤矿煤矸同采分运充填系统,解决薄煤层机械化采煤和充填平行作业难度大,矸石洗选成本大的问题。本发明公开一种煤矿煤矸同采分运充填方法,可在工作面直接对采出的矸石进行分离,并充填至采空区,实现采充平行作业,最大限度减少原煤含矸率,减轻洗选压力,实现煤矸石环保治理,绿色开采。(The invention discloses a coal and gangue simultaneous mining and separate transportation filling system for a coal mine, which comprises a filling support, wherein a filling scraper conveyor is arranged at the rear end of the filling support, a coal mining machine and a working surface scraper conveyor are arranged below the front end of the filling support, a slotted bottom plate and a slotted middle plate with a discharge opening are arranged on the working surface scraper conveyor, one end of the working surface scraper conveyor is lapped with or connected with a crossheading adhesive tape in a rubber transportation crossheading, and the other end of the working surface scraper conveyor is lapped with or connected with the filling scraper conveyor at the rear end of the filling support. The coal and gangue simultaneous mining and separate transportation filling system for the coal mine solves the problems that the mechanized coal mining and filling of a thin coal seam are difficult to operate in parallel, and the gangue washing cost is high. The invention discloses a coal gangue simultaneous mining and separate transportation filling method for a coal mine, which can directly separate the mined gangue on a working face and fill the gangue to a goaf, thereby realizing mining and filling parallel operation, reducing the gangue content of raw coal to the maximum extent, reducing washing pressure, realizing environment-friendly treatment and green mining of the gangue.)

1. The utility model provides a colliery coal gangue is with adopting and transporting filling system separately, its characterized in that, including filling support (1), the rear end of filling support (1) is provided with fills scraper conveyor (8), coal-winning machine (3) and working face scraper conveyor (7) have been arranged to the front end below of filling support (1), be provided with slotted bottom plate (10) and have slot medium plate (9) of discharge opening (11) on working face scraper conveyor (7), working face scraper conveyor (7) one end is connected with the crossheading sticky tape overlap joint in the crossheading of gluey fortune, and the other end and the filling scraper conveyor (8) overlap joint of filling support (1) rear end.

2. The coal mine gangue simultaneous mining and separate transporting and filling system according to claim 1, wherein the face scraper conveyor can be a middle double chain type or a side double chain type or a single chain type or a triple chain type.

3. The coal mine gangue simultaneous mining and separate transportation and filling system according to claim 1, characterized in that the trough mid-plate discharge end lower/trough bottom plate discharge end of the face scraper conveyor (7) overlaps/connects a coal conveyor and a filling transfer conveyor, the coal conveyor overlaps/connects a gate belt in a rubber gate, and the filling transfer conveyor overlaps/connects the filling scraper conveyor.

4. The coal mine coal and gangue simultaneous mining and separate transportation filling system according to claim 1, wherein discharge ports are arranged on transition groove bottom plates of a machine head and a machine tail of the working face scraper conveyor (7).

5. The coal mine coal and gangue simultaneous mining and separate transportation and filling system according to claim 1, wherein the trough middle plate (9) or the trough bottom plate (10) can transport coal or gangue.

6. A method for the simultaneous mining and separate transportation and filling of coal and gangue is carried out based on the system for the simultaneous mining and separate transportation and filling of coal and gangue as claimed in any one of claims 1 to 5, and is characterized in that a discharge opening (11) of a trough middle plate (9) on a working face scraper conveyor (7) is opened, a coal/gangue is cut by a coal mining machine (3), the discharge openings (11) of the trough middle plate (9) on the working face scraper conveyor (7) are sequentially closed as the coal mining machine (3) moves forward, the coal is conveyed to a coal flow conveying system from a discharge end of the trough bottom plate (10) under the transportation of the working face scraper conveyor (7), and the mined gangue is conveyed to a filling scraper conveyor (8) behind a filling support (1) through the discharge end of the trough middle plate (9) under the transportation of the working face scraper conveyor to fill the gangue into a goaf.

7. A coal and gangue simultaneous mining and separate transportation filling method is carried out based on the coal and gangue simultaneous mining and separate transportation filling system of any one of claims 1 to 5, and is characterized in that a discharge opening (11) of a groove middle plate (9) on a working face scraper conveyor (7) is closed, a coal/gangue is cut by a coal mining machine (3), as the coal mining machine (3) moves forwards, discharge openings of the groove middle plate (9) on the working face scraper conveyor (7) are sequentially opened, coal to be mined is conveyed to a coal flow conveying system from a discharge end of the groove middle plate (9) under the transportation of the working face scraper conveyor (7), and the coal to be mined is conveyed to a filling scraper conveyor (8) behind a filling support (1) through a discharge end of a groove bottom plate (10) under the transportation of the working face scraper conveyor (7) to fill the gangue into a goaf.

Technical Field

The invention belongs to the technical field of coal mine filling mining, and particularly relates to a coal mine gangue simultaneous-mining and separate-transportation filling system and a coal mine gangue simultaneous-mining and separate-transportation filling method.

Background

The thin coal seam means that the thickness of the coal seam is below 1.3 meters, the coal storage capacity of the thin coal seam in China is rich, most working faces of the thin coal seam adopt a fully mechanized mining mode for coal mining at present, but because the coal seam is thin and the height of the working faces is too low, in order to meet the minimum mining height of a fully mechanized mining hydraulic support, a coal mining machine always needs to break the roof or break the bottom when cutting coal, so that a large amount of gangue is mixed into the coal which is mined back, the content of the gangue in the coal is high, the quality of the coal is influenced, large pressure is caused for ground washing, and the washing cost is greatly increased. The waste rocks generated by mining the thin coal seam are generally discharged outside, and the discharged waste rocks not only occupy the land and pollute the environment, but also have higher cost, and do not meet the requirements of green mine construction in the coal industry. With the continuous improvement of environmental requirements, many mines begin to fill the gangue generated by mining, but the problem of returning the gangue to the mine for thin coal seam mining is not much, so that it is important to separate the gangue and mining the thin coal seam, perform filling and mining, realize mining and filling parallel operation, and realize green mining of the mines.

The invention provides a method suitable for mining and filling coal and gangue in a thin coal seam in a separate transportation mode, aiming at solving the problems that the coal seam mined by the thin coal seam has high gangue content, high washing and gangue treatment cost, and the mining and filling can not be operated in parallel.

Disclosure of Invention

The invention aims to provide a coal and gangue simultaneous mining and separate transportation filling system for a coal mine, which solves the problem that the separation difficulty of coal and gangue on a working face is high during mechanical mining of a thin coal seam.

In order to achieve the purpose, the technical scheme adopted by the invention is that the coal and gangue simultaneous mining and separate transportation filling system for the coal mine comprises a filling support, wherein a filling scraper conveyor is arranged at the rear end of the filling support, a coal mining machine and a working face scraper conveyor are arranged below the front end of the filling support, a slotted bottom plate and a slotted middle plate with a discharge opening are arranged on the working face scraper conveyor, one end of the working face scraper conveyor is lapped/connected with a crossheading adhesive tape in a rubber transportation crossheading, and the other end of the working face scraper conveyor is lapped/connected with the filling scraper conveyor at the rear end of the filling support.

The technical proposal of the invention also has the following characteristics,

the working face scraper conveyor can be a middle double chain type or side double chain type or a single chain type or a triple chain type.

The coal conveying device comprises a working face scraper conveyor groove middle plate, a coal conveying transfer machine and a filling transfer machine, wherein the coal conveying transfer machine is in lap joint with a crossheading adhesive tape in a rubber conveying crossheading, and the filling transfer machine is in lap joint with the filling scraper conveyor.

And discharge ports are arranged on transition groove bottom plates of the machine head and the machine tail of the working face scraper conveyor.

The middle plate of the groove or the bottom plate of the groove can transport coal or gangue.

The invention aims to provide a coal and gangue simultaneous mining and separate transportation filling method for a coal mine, which solves the problems of coal and gangue separation and working face gangue on-site filling to realize mining and filling parallel operation during mechanized mining of a thin coal seam.

In order to achieve the purpose, the invention adopts the technical scheme that: a coal and gangue simultaneous mining and separate transportation filling method is implemented according to the following specific method: opening a discharge port of a groove middle plate on a working face scraper conveyor, cutting coal/waste rock by a coal mining machine, sequentially closing the discharge port of the groove middle plate on the working face scraper conveyor along with the forward movement of the coal mining machine, conveying the coal to be mined to a coal flow conveying system from a discharge end of a groove bottom plate under the transportation of the working face scraper conveyor, conveying the coal to be mined to a filling scraper conveyor behind a filling support through the discharge end of the groove middle plate under the transportation of the working face scraper conveyor, and filling the waste rock to a goaf.

Or the coal and gangue simultaneous mining and separate transportation filling method is implemented according to the following specific method: closing the discharge opening of the middle trough plate on the working face scraper conveyor, cutting coal/gangue by the coal mining machine, sequentially opening the discharge opening of the middle trough plate on the working face scraper conveyor along with the forward movement of the coal mining machine, conveying the coal to be mined to a coal flow conveying system from the discharge end of the middle trough plate under the transportation of the working face scraper conveyor, and conveying the gangue to a filling scraper conveyor behind a filling support through the discharge end of the bottom trough plate under the transportation of the working face scraper conveyor to fill the gangue to a goaf.

The invention has the beneficial effects that: the coal and gangue simultaneous mining and separate transporting system and method for the coal mine can directly separate the coal and gangue on the working face and fill the mined gangue, so that mining and filling parallel operation is realized, the path is few, the consumption is low, and the processing capacity is high: the waste rock content of the raw coal is reduced to the maximum extent, the washing pressure is reduced, the cost is reduced and the efficiency is increased for coal mine enterprises, the environment-friendly treatment of the coal gangue, the green water retention and the sedimentation reduction exploitation are realized, and the obvious economic and social benefits are realized.

Drawings

FIG. 1 is a schematic layout of a working face of a coal mine coal and gangue simultaneous mining and separate transportation filling system of the invention;

FIG. 2 is a schematic structural diagram of a working face scraper conveyor in the coal mine gangue simultaneous mining and separate transportation filling system of the invention;

the coal mining machine comprises a filling support 1, a rear roller 2, a coal mining machine 3, a front roller 4, a rock stratum 5, a coal bed 6, a working face scraper conveyor 7, a filling scraper conveyor 8, a groove middle plate 9, a groove bottom plate 10 and a discharge opening 11.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, the coal and gangue simultaneous mining and separate transportation filling system of the coal mine comprises a filling support 1, a filling scraper conveyor 8 is arranged at the rear end of the filling support 1, a coal mining machine 3 and a working face scraper conveyor 7 are arranged below the front end of the filling support 1, a slotted bottom plate 10 and a slotted middle plate 9 with a discharge opening 11 are arranged on the working face scraper conveyor 7, one end of the working face scraper conveyor 7 is lapped with/connected with a crossheading adhesive tape in a rubber transportation crossheading, and the other end of the working face scraper conveyor 7 is lapped with/connected with the filling scraper conveyor 8 at the rear end of the filling support 1.

As shown in fig. 1, the front drum 4 of the coal mining machine 3 cuts a coal seam 6 located at the lower part, and the rear drum 2 of the coal mining machine 3 cuts a rock stratum 5 located at the upper part, wherein the cut coal is conveyed to a gate belt in a rubber gate through a discharge end of a slot middle plate 9 in a working face scraper conveyor 7, and finally is conveyed to the ground; the cut gangue is conveyed to a filling scraper conveyor 8 at the rear end of the filling support 1 through the discharge end of a groove bottom plate 10 in the working face scraper conveyor 7, and finally is conveyed to the goaf for filling.

As shown in fig. 1, the front drum 4 of the coal mining machine 3 cuts a coal seam 6 located at the lower part, and the rear drum 2 of the coal mining machine 3 cuts a rock stratum 5 located at the upper part, wherein the cut coal is conveyed to a gate belt in a rubber gate through a discharge end of a tank bottom plate 10 in a working face scraper conveyor 7, and finally is conveyed to the ground; the cut and mined waste rock is conveyed to a filling scraper conveyor 8 at the rear end of the filling support 1 through a discharge end of a groove middle plate 9 in the working face scraper conveyor 7, and finally conveyed to a goaf for filling.

In the coal mine gangue simultaneous mining and separate transporting and filling system of the invention, as shown in fig. 1, the face scraper conveyor 7 is preferably of a medium-double chain type or a side-double chain type or a single chain type or a triple chain type.

In the coal and gangue simultaneous mining and separate transportation and filling system of the invention, as shown in fig. 1, a coal transporting and filling transfer machine is lapped/connected below the discharge end of a trough middle plate 9/at the discharge end of a trough bottom plate of a working face scraper conveyor 7, the coal transporting transfer machine is lapped/connected with a crossheading adhesive tape in a rubber transportation crossheading, and the filling transfer machine is lapped/connected with a filling scraper conveyor.

The coal on the working face scraper conveyor 7 can be conveyed to a gate rubber belt in a rubber conveying gate through a coal conveying transfer conveyor; the gangue on the working face scraper conveyor 7 can be conveyed to the filling scraper conveyor through the filling reversed loader.

As shown in figure 1, in the coal mine coal and gangue simultaneous mining and separate transportation filling system, the transition groove bottom plates of the head and the tail of the working face scraper conveyor 7 are provided with discharge ports, and the discharge ports are convenient for the coal or gangue cut and mined to be conveyed out.

As shown in fig. 1, in the coal mine coal and gangue simultaneous mining and separate transportation filling system of the invention, the middle trough plate 9 or the bottom trough plate 10 can transport coal or gangue.

As shown in fig. 1, the coal and gangue simultaneous mining and separate transportation filling method of the present invention is performed based on the coal and gangue simultaneous mining and separate transportation filling system, and the principle is that a tank bottom plate 10 transports coal, and a tank middle plate 9 transports gangue, and is specifically implemented according to the following modes: opening a discharge port 11 of a groove middle plate 9 on a working face scraper conveyor 7, cutting coal/gangue by a coal mining machine 3, moving forward along with the coal mining machine 3, sequentially closing the discharge port 11 of the groove middle plate 9 on the working face scraper conveyor 7, conveying the coal-mined from a discharge end of a groove bottom plate 10 to a coal flow conveying system under the transportation of the working face scraper conveyor 7, and conveying the mined gangue to a filling scraper conveyor 8 behind a filling support 1 through the discharge end of the groove middle plate 9 under the transportation of the working face scraper conveyor to fill the gangue to a goaf.

As shown in fig. 1, the coal and gangue simultaneous mining and separate transportation filling method of the present invention is performed based on the coal and gangue simultaneous mining and separate transportation filling system, and the principle is that gangue is transported by a tank bottom plate 10, and coal is transported by a tank middle plate 9, and the method is specifically implemented in the following manner: closing a discharge opening 11 of a groove middle plate 9 on a working face scraper conveyor 7, cutting coal/gangue by a coal mining machine 3, moving forward along with the coal mining machine 3, sequentially opening discharge openings of the groove middle plate 9 on the working face scraper conveyor 7, conveying the coal-mined from a discharge end of the groove middle plate 9 to a coal flow conveying system under the transportation of the working face scraper conveyor 7, conveying the coal-mined gangue to a filling scraper conveyor 8 behind a filling support 1 through a discharge end of a groove bottom plate 10 under the transportation of the working face scraper conveyor 7, and filling the gangue to a goaf.

Therefore, the coal and gangue simultaneous mining and separate transportation system and the coal and gangue simultaneous mining and separate transportation method can directly separate coal and gangue on a working face and fill the separated gangue, and have the advantages of less path, less consumption and large processing capacity: the waste rock content of the raw coal is reduced to the maximum extent, the washing pressure is reduced, the cost is reduced and the efficiency is increased for coal mine enterprises, the environment-friendly treatment of the coal gangue, the green water retention and the sedimentation reduction exploitation are realized, and the obvious economic and social benefits are realized.