阅读说明：本技术 一种矿用膏体充填高效接顶工艺 (Efficient roof-contacting technology for filling paste for mine ) 是由 宋英明 苏臣 叶吉庆 徐庆路 纪建兵 于 2021-06-02 设计创作，主要内容包括：本发明公开了一种矿用膏体充填高效接顶工艺,属于充填接顶技术领域。一种矿用膏体充填高效接顶工艺,包括步骤一：使用短布料管全力充填,步骤二：使用长布料管全力充填,选择中间位置将长布料管的管道断开；步骤三：将端头封堵完全,再次使用短布料管充填,将主运巷侧完全接顶；步骤四：主运巷侧浆体凝固并达到一定强度,使用长布料管充填,待回风巷侧排气管满管出浆和充满观察口,则完成充填,本发明采用条带巷布置一长一短两根输送管,接顶四次完成,在降低充填膏体在条带巷的侧向压力,保证了接顶效果,提高充填安全效率,节约充填材料成本,降低人工劳动强度。(The invention discloses a mining paste filling efficient roof-contacting process, and belongs to the technical field of filling roof-contacting. A mining paste filling efficient roof connecting process comprises the following steps: and (3) using a short distributing pipe for full filling, and performing the step two: the long material distribution pipe is used for full filling, and the middle position is selected to disconnect the pipeline of the long material distribution pipe; step three: completely plugging the end head, filling by using a short distributing pipe again, and completely jacking the main conveying roadway side; step four: the main conveying roadway side slurry is solidified and reaches a certain strength, the long material distribution pipe is used for filling, and filling is finished when the air exhaust pipe on the air return roadway side is full of the pipe, slurry is discharged and the observation port is full of the pipe, the strip roadway is adopted for arranging the long conveying pipe and the short conveying pipe, and roof connection is finished for four times, so that the lateral pressure of the filling paste body in the strip roadway is reduced, the roof connection effect is ensured, the filling safety efficiency is improved, the filling material cost is saved, and the manual labor intensity is reduced.)

1. A mining paste filling efficient roof connecting process is characterized by comprising the following steps: the method comprises the following steps:

the method comprises the following steps: the filling body is filled fully by using the short distributing pipe (1), and the filling is stopped when the surface of the filling body at the blanking port is 1-2 m away from the top plate;

step two: the filling body is filled fully by using the long material distribution pipe (2), the filling is stopped when the surface of the filling body at the blanking port is 1-2 m away from the top plate, and the middle position is selected to disconnect the pipeline of the long material distribution pipe (2);

step three: completely plugging the end head, filling by using the short distributing pipe (1) again, and completely jacking the main conveying roadway side;

step four: and (3) solidifying the slurry on the side of the main conveying roadway to reach a certain strength, filling by using the long material distribution pipe (2), and finishing filling when the exhaust pipe (3) on the side of the return airway is fully discharged and fully filled with the observation port.

2. The mining paste filling efficient roof connecting process according to claim 1, characterized in that: the exhaust pipe (3) and the short material distribution pipe (1) are respectively arranged on two sides of the long material distribution pipe (2).

3. The mining paste filling efficient roof connecting process according to claim 1, characterized in that: in the first step, the wall entering of the short distributing pipe (1) is less than 0.5 m.

Technical Field

The invention relates to the technical field of coal mine filling, in particular to a mining paste filling efficient roof connecting process.

Background

The filling mining method can recover mineral resources to the maximum extent and protect underground and earth surface environments, and particularly in recent years, along with continuous progress of filling materials, filling processes, pipeline conveying equipment and technologies, the filling mining method is widely applied to coal mines. The paste filling technology is one of coal mine green mining technology systems, and mainly aims to solve the problem of coal pressing of 'three-next-up', treat solid waste, improve the mining rate of coal mine resources and prolong the service life of a mine. At present, the problems of low topping rate of filling paste, poor filling effect and the like are one of the main difficulties restricting the development of paste filling mining technology.

In the prior art, a conveying pipe is arranged at the end of a strip roadway, roof contact is completed at one time, lateral pressure of paste in the strip roadway is high, slurry leakage accidents are caused, equipment loss is caused, labor intensity is increased, a goaf exists in a goaf of the filled paste, and problems of poor stability of a filling body, surface subsidence and the like are caused due to insufficient roof contact.

Therefore, the existing roof-contacting technology in the paste filling mining technology has serious slurry leakage problem and low efficiency, and in view of the problem, the high-efficiency roof-contacting technology for filling the paste for the mine is provided.

Disclosure of Invention

The invention aims to provide a mining paste filling efficient roof connecting process, which aims to solve the problems in the background technology: the existing roof-contacting technology in the paste filling mining technology has serious slurry leakage problem and low efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

a mining paste filling efficient roof connecting process comprises a short material distribution pipe, a long material distribution pipe and an exhaust pipe;

the method comprises the following steps:

the method comprises the following steps: the filling body is filled fully by using a short distributing pipe, and the filling is stopped when the surface of the filling body at the blanking port is 1-2 m away from the top plate;

step two: the long material distribution pipe is used for fully filling the filling body, the filling is stopped when the surface of the filling body at the blanking port is 1-2 m away from the top plate, and the middle position is selected to disconnect the pipeline of the long material distribution pipe;

step three: completely plugging the end head, filling by using a short distributing pipe again, and completely jacking the main conveying roadway side;

step four: and (3) solidifying the slurry on the side of the main conveying roadway to reach a certain strength, filling by using a long material distribution pipe, and finishing filling when the exhaust pipe on the side of the return airway is fully discharged and fully filled with the observation port.

Preferably, the exhaust pipe and the short material distribution pipe are respectively arranged on two sides of the long material distribution pipe.

Preferably, the wall of the short distributing pipe in the step one is less than 0.5 m.

Preferably, the short material distribution pipe, the long material distribution pipe and the exhaust pipe are arranged on one side of the upper baffle.

Preferably, the bottom surface of the upper baffle is provided with a lower baffle, the bottom surface of the lower baffle is provided with a side baffle, one side of the upper baffle is provided with a jack, one side of the side baffle is provided with a support jack, and the inner side of the support jack is provided with a side pushing jack.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the long material distribution pipe and the short material distribution pipe are arranged in the strip lane, roof connection is completed by filling twice, and the lateral pressure of the filling paste in the strip lane is reduced, so that the filling body is fully connected to the roof, the roof connection effect is ensured on the basis of avoiding end slurry leakage, the filling safety efficiency is improved, the filling material cost is saved, and the manual labor intensity is reduced.

Drawings

FIG. 1 is a schematic front view of a filling strip closure of the present invention;

FIG. 2 is a schematic top view of a fill strip closure of the present invention;

the reference numbers in the figures illustrate: 1. a short distributing pipe; 2. a long cloth tube; 3. an exhaust pipe; 4. a jack is lifted; 5. an upper baffle plate; 6. a lower baffle plate; 7. supporting the jack; 8. laterally pushing a jack; 9. side dams.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, a mining paste filling efficient roof connecting process comprises a short material distribution pipe 1, a long material distribution pipe 2 and an exhaust pipe 3;

the method comprises the following steps:

the method comprises the following steps: the short distributing pipe 1 is used for full filling, and the filling is stopped when the surface of the filling body at the feed opening is 1-2 m away from the top plate;

step two: the long material distribution pipe 2 is used for full filling, the filling is stopped when the surface of the filling body at the blanking port is 1-2 m away from the top plate, and the middle position is selected to disconnect the pipeline of the long material distribution pipe 2;

step three: completely plugging the end head, filling by using the short distributing pipe 1 again, and completely jacking the main conveying roadway side;

step four: the main conveying roadway side slurry is solidified and reaches a certain strength, the long distributing pipe 2 is used for filling, when the air return roadway side exhaust pipe 3 is full of the pipe slurry and is full of the observation port, filling is completed, two conveying pipes, namely the long distributing pipe 2 and the short distributing pipe 1, are arranged in the strip roadway, top connection is completed twice, the lateral pressure of the filling paste body in the strip roadway is reduced, and the top connection effect is guaranteed on the basis of avoiding slurry leakage at the end head.

The exhaust pipe 3 and the short material distribution pipe 1 are respectively arranged on two sides of the long material distribution pipe 2, and the two short material distribution pipes 1 and the long material distribution pipe 2 with different lengths are utilized for top-contacting filling, so that a top-contacting effect is guaranteed.

In the first step, the wall of the middle-short distributing pipe 1 is less than 0.5 m.

The short material distributing pipe 1, the long material distributing pipe 2 and the exhaust pipe 3 are arranged on one side of the upper baffle plate 5.

5 bottom surfaces of overhead gage 5 are provided with down baffle 6, and 6 bottom surfaces of lower baffle are provided with side shield 9, and 5 one side of overhead gage is provided with and picks jack 4, and 9 one sides of side shield set up supporting jack 7, and 7 inboards of supporting jack are provided with side thrust jack 8, and it supports overhead gage 5, lower baffle 6 and side shield 9 respectively to pick jack 4, supporting jack 7 and side thrust jack 8 through setting up, leaks the thick liquid when effectively avoiding filling.

According to the invention, the long material distribution pipe 2 and the short material distribution pipe 1 which are long and short are arranged in the strip lane, the roof connection is completed through twice filling, and the roof connection effect is ensured on the basis of avoiding end slurry leakage by reducing the lateral pressure of the filling paste in the strip lane and enabling the filling body to be fully connected to the roof, so that the filling safety efficiency is improved, the filling material cost is saved, and the labor intensity is reduced.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.