Cylindrical hole sealing bag

A sealing bag, cylindrical technology, used in sealing/sealing, gas discharge, safety devices, etc., can solve the problems of air leakage, inability to effectively complete the sealing of the sealing section, inconvenient to use, etc., and achieve convenient use. Effect

Inactive Publication Date: 2012-09-19
CHINA COAL TECH ENG GRP CHONGQING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The existing sealing bag needs to be wrapped and tied on the extraction pipe, which is very inconvenient to use;
[0006] 2. Since the existing sealing bag cannot be completely wrapped around the drainage pipe, if the sealing bag is not successfully broken in the gas drilling, the existing sealing bag structure cannot effectively comple

Method used

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  • Cylindrical hole sealing bag
  • Cylindrical hole sealing bag
  • Cylindrical hole sealing bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is a structural schematic diagram of Embodiment 1 of the present invention, figure 2 for figure 1 A-A sectional view, as shown in the figure, the cylindrical sealing bag of the present embodiment includes a bag body 1, the bag body 1 is a sandwich bag body composed of an inner layer and an outer layer, and the bag body 1 is a cylinder Shape, the middle part of the bag body 1 is provided with an openable and closable partition device 2, the partition device 2 divides the bag body 1 into two parts isolated from each other, and the interlayers of the two parts bag body 1 are filled one by one. Two components of the foam material.

[0025] In this embodiment, the partition device 2 is a sealing clip clamped on the outer surface of the bag body 1; of course, the partition device can also be in other openable and closable structural forms, such as: the partition device is a self-heated press in the middle of the bag body. Isolation belt, when in use, punch out...

Embodiment 2

[0030] image 3 It is a structural schematic diagram of Embodiment 2 of the present invention, Figure 4 for image 3 A-A sectional view of A-A, as shown in the figure, the cylindrical sealing bag of this embodiment is different from that of Embodiment 1 in that: in this embodiment, an inner wall of the bag body 1 is provided along the generatrix of the bag body 1. The thermocompression seam 3 formed by thermocompression bonding of the layer and the outer layer.

[0031] The cylindrical sealing bag of this embodiment is provided with hot pressing seams 3 along the bus line of the bag body 1, which is conducive to the final bursting of the bag body 1 after the foaming material in the interlayer of the bag body 1 is foamed, so that the sealing effect is better; of course , because the cylindrical bag body 1 is completely wrapped around the extraction pipe, even if the sealing bag is broken and there is an obstacle, the sealing requirement can be met.

Embodiment 3

[0033] Figure 5 It is a structural schematic diagram of Embodiment 3 of the present invention, Image 6 for Figure 5 A-A cross-sectional view of A-A, as shown in the figure, the cylindrical sealing bag of this embodiment is different from that of Embodiment 1 in that: in this embodiment, there are two holes formed by the bag body 1 along the generatrix of the bag body 1. The thermocompression seam 3 formed by thermocompression bonding of the inner layer and the outer layer.

[0034] The cylindrical sealing bag of this embodiment is provided with hot pressing seams 3 along the bus line of the bag body 1, which is conducive to the final bursting of the bag body 1 after the foaming material in the interlayer of the bag body 1 is foamed, so that the sealing effect is better; of course , because the cylindrical bag body 1 is completely wound around the extraction pipe, it can ensure that the hole sealing requirement can be met even when the hole sealing bag is broken and there ...

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Abstract

The invention discloses a cylindrical hole sealing bag, which includes a bag body, wherein the bag body is a sandwich bag body formed by an inner layer and an outer layer, and takes the shape of a cylinder; an openable separating device is arranged at the middle part of the bag body and divides the bag body into two mutually-separated parts, and two components of foam materials are filled into the interlayer between the two parts of bag body in a one-to-one correspondence manner; the cylindrical hole sealing bag is not required to be wound and bound for fixation and is very convenient to use, and moreover, the cylindrical bag body fully winds around a drainage pipe so as to meet the hole sealing requirement even when the hole sealing bag has difficulty in splitting; in addition, when the water inflow in a gas drill hole is high, and the hole sealing bag is required to be not split during the whole foaming process, the cylindrical hole seal bag can be used as a hole sealing bag not being split at all and can realize sealing the hole sealing section.

Description

technical field [0001] The invention relates to a plugging device for a mine gas drainage hole, in particular to a hole sealing bag. Background technique [0002] The currently widely used two-component polyurethane method to block the gas drainage hole is: sprinkle the two components of the two-component polyurethane, that is, isocyanate and combined polyether, on the textile or braided material in proportion, and stir slightly. Bind it on the drainage pipe and send it into the gas drainage hole; or first bind the above-mentioned fabric on the drainage pipe, and then pour the two components of polyurethane on the fabric and send it into the gas drainage hole. Although this method is a step forward compared with the use of cement and cement mixture, etc., this method of plugging has defects such as inaccurate proportioning, insufficient mixing, waste of materials, and poor plugging effect. [0003] The utility model patent with the patent number of 200620118135.9 discloses...

Claims

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Application Information

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IPC IPC(8): E21B33/13E21F7/00
Inventor 许向彬胡澜童宗豪李宝鹏李明秋李辉刘欢刘罡
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST
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