A fast sealing device for underground connecting roadway and its application method

Abstract

The present invention relates to a fast sealing device for an underground communication roadway, comprising a main body airbag, the head and tail ends of the main body airbag are connected to form a closed structure, a wind blocking cloth is arranged inside the closed structure, a plurality of carbon fiber skeletons are arranged inside the main body airbag, and the main body airbag It is connected with an underground compressed air inflation device, which includes an air storage tank, which is connected to the main body air bag through a rubber tube, and an air suction pump and a valve are installed on the rubber tube. The operation is simple, the construction speed is fast, and the temporary sealing and sealing can be completed. It has a wide range of applications and can be used in roadways with different cross-sectional shapes and different support methods. It is versatile and can be large or small. The split portable design can be used in Used in complex underground tunnels with pipelines, the sealing effect is good, the air leakage rate is low, the air bag has good airtightness, and can not leak for more than 24 hours. The air bag has a skeleton support and sealing effect, and the air can be used repeatedly, which can save a lot Material costs.

Description

Technical field: [0001] The invention relates to the technical field of underground fast sealing operations, in particular to a fast sealing device for underground connecting roadways and a method for using the same. Background technique: [0002] With the continuous deepening of the concept of green mining in my country's coal mines, the continuous improvement of mining technology and equipment, the production capacity of modern mines has been continuously improved, and the excavation and mining techniques have been introduced. : First, most modern mine coal mining face adopts continuous coal mining machine double roadway excavation along the trough, and a connecting roadway is set every 100m between the two roadways on average. During the production process, the connecting roadway needs to be temporarily sealed in time, and the workers The labor intensity is high and the workload is heavy; the second is to ensure the quality of the temporary airtightness of the connecting ro...

AI Technical Summary

Problems solved by technology

[0002] With the continuous deepening of the concept of green mining in my country's coal mines, the continuous improvement of mining technology and equipment, the production capacity of modern mines has been continuously improved, and the excavation and mining techniques have been introduced. : First, most modern mine coal mining face adopts continuous coal mining machine double roadway excavation along the trough, and a connecting roadway is set every 100m between the two roadways on average. During the production process, the connecting roadway needs to be temporarily sealed in time, and the workers The labor intensity is high and the workload is heavy; the second is to ensure the quality of the temporary airtightness of the connecting roadway and prevent the air flow from being disturbed or short-circuited. In most mine working faces, the temporary sealing of the connecting roadway with double-way tunneling is constructed with a 0.37m thick brick wall (or other airtight material) 2 ways, resulting in a large amount of transportation of underground construction materials, high labor intensity, and a long construction period; third, as the working face advances, the temporary airtightness needs to be removed, which increases the labor load of the working face, and the materials cannot be reused

[0003] Although the existing sealing method can easily isolate the dangerous area, it is difficult to construct due to heavy equipment, complicated process, unstable raw materials, or irregularities at the edge of the roadway

Therefore, their popularization and application are largely limited

At present, there is no effective and more suitable method and technology to build a fast sealing wall in the process of temporary airtight setting of the connecting roadway in the modern mine working face. Therefore, it is urgent to develop a temporary airtight device that can be quickly disassembled and assembled. , to facilitate the ventilation management work of double-way tunneling in fully mechanized mining

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