Device and method for segmented belt filling at end of coal mining face
A technology of coal mining face and filling device, which is applied in the direction of filling, safety device, mining equipment, etc., can solve problems such as threats to safe production of coal mining face, fire in goaf, safety accidents, etc.
Active Publication Date: 2017-10-10
兖矿能源集团股份有限公司
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Problems solved by technology
The back of the coal mining face is adjacent to the goaf, and if the end is not sealed tightly, it is easy to cause air leakage in the goaf, causing the goaf to catch fire, which seriously threatens the safe production of the coal mining face
[0003] At present, the main method of sealing the end of the working face is to manually bag the coal, and then stack it neatly to build a coal wall to seal it. However, this sealing method is time-consuming and laborious, and the sealing effect is poor, and the structure is unstable. At the same time, it caused serious air leakage in the goaf and caused safety accidents
Method used
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Embodiment Construction
[0041] The invention provides a segmented filling method at the end of a coal mining face with simple operation, good sealing effect and high stability.
[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0043] figure 1 It is a structural schematic diagram of the threading machine provided by the present invention.
[0044] A coal mining face end filling device is characterized in that it comprises:
[0045] A filling bag 1, the filling bag 1 is arranged at the end of the coal mining face;
[0046] The gr...
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The invention discloses a filling method of a sectionalized tip of a coal face. The method comprises the steps: 1) providing a filling bag in an intake entry nearby a solid coal; 2) installing a grouting pipe, and enabling the grouting pipe to be hermetically communicated with the filling bag; 3) filling the filling bag through the grouting pipe until a collapsed tunnel cross-section is completely blocked; 4) enabling the grouting pipe to be separated from the filling bag after foam concrete is condensed. In addition, the invention further discloses a filling device of the sectionalized tip of the coal face, which is applicable to the filling method of the sectionalized tip of the coal face. The filling method of the sectionalized tip of the coal face has the characteristics of being convenient to operate, good in sealing effect and high in stability.
Description
technical field [0001] The invention relates to the technical field of coal mining, in particular to a segmented filling device and method for the end of a coal mining face. Background technique [0002] Mine fire is one of the five major mine natural disasters in my country, and nearly 90% of mine fires are naturally caused by coal. The back of the coal mining face is adjacent to the goaf, and if the end seal is not tight, it is easy to cause air leakage in the goaf, causing the gob to catch fire, which seriously threatens the safe production of the coal mining face. [0003] At present, the main method of sealing the end of the working face is to manually bag the coal, and then stack it neatly to build a coal wall to seal it. However, this sealing method is time-consuming and laborious, and the sealing effect is poor, and the structure is unstable. At the same time, it caused serious air leakage in the goaf and caused safety accidents. Contents of the invention [0004...
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IPC IPC(8): E21F15/00
CPCE21F15/08
Inventor 李华李付臣万志军安满林任晓东张洪伟冯浩张源康丹周鹏程发祥
Owner 兖矿能源集团股份有限公司