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Inflatable hole sealing device for drilling and slip casting and using method thereof

A drilling, grouting and inflatable technology, which is applied in earthwork drilling, sealing/packing, gas discharge, etc. It can solve the problems of air leakage and scrapping of inflatable capsule hole sealers, easy aging and cracking of rubber, limited expansion force, etc. , to achieve the effect of easy placement or removal of the hole sealer, convenient construction, and increased safety height

Pending Publication Date: 2019-01-04
徐州中矿岩土技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the capsule of the existing inflatable capsule hole sealer is made of rubber material, and the rubber material part is in contact with the borehole wall, and the expansion force is limited, so it is easy to leak between the capsule and the borehole wall
In addition, after a certain period of time, the rubber is easy to age and crack. Moreover, since the capsule of the inflatable capsule sealer is outside the sealer and protrudes from the grouting pipe, it is very easy to be drilled when it is sent into or removed from the drilling hole. If the wall is scratched, the above situations will lead to air leakage and scrapping of the inflatable capsule hole sealer

Method used

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  • Inflatable hole sealing device for drilling and slip casting and using method thereof
  • Inflatable hole sealing device for drilling and slip casting and using method thereof
  • Inflatable hole sealing device for drilling and slip casting and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown in ‐2, an inflatable hole sealer for drilling and grouting, including: a body 1 and a flexible airtight cloth tube 4; the flexible airtight cloth tube 4 is used to replace the existing rubber airbag, the strength is greatly increased, aging is prevented, and the durability Durable, good airtight effect.

[0047] The middle part of the body 1 is concaved inward along the circumferential direction to form a constricted portion 2, and the two ends of the flexible airtight cloth tube 4 are airtightly connected to the two ends of the constricted portion 2, and the constricted portion 2 The outside of the body 1 is covered with a protective layer 5 along the outer periphery of the main body 1, and an accommodating cavity 10 is formed between the protective layer 5 and the constricted portion 2, and the cylinder body of the flexible airtight cloth tube 4 is placed in the accommodating In the cavity 10; on the one hand, this can form a closed space, w...

Embodiment 2

[0060] Such as figure 1 As shown in ‐4 and 6, a method of using an inflatable hole sealer for drilling and grouting includes the following steps:

[0061] (1) Provide several inflatable hole sealers for drilling and grouting, several connecting pipes 16 and a corresponding number of internal thread sleeves 13, the outer diameter of the connecting pipe 16, the outer diameter of the body 1 , the outer diameters of the internally threaded sleeves 13 are equal, and the outer wall of one side of the connecting pipe 16 is provided with an arcuate wall 11 with an air-filled hole 12 in the middle corresponding to the inflatable hole sealer for drilling and grouting. The outer peripheral walls at both ends of the connecting pipe 16 are also concavely provided with external threads, and the internal threads of the internally threaded sleeve 13 are compatible with the external threads;

[0062] (2) Lower a connecting pipe 16 from the aperture to the borehole a, connect the connecting pi...

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Abstract

The invention discloses an inflatable hole sealing device for drilling and slip casting. The inflatable hole sealing device comprises a body and a flexible airtight cloth cylinder. The middle part ofthe body is recessed inwardly in a circumferential direction to form a reducing part; and the two ends of the flexible airtight cloth cylinder are connected to the two ends of the reducing part in anairtight manner. A protection layer coats the outer side of the reducing part along the outer circumference of the body; an accommodation cavity is formed between the protection layer and the reducingpart; and the cylinder body of the flexible airtight cloth cylinder is arranged in the accommodation cavity. Convex parts are arranged at the body at the two ends of the reducing part along the peripheral direction; guiding rollers are arranged at the end surfaces of the outer sides of the convex parts uniformly; a concave arc surface is formed at one side, facing the reducing part, of each convex part; and an outer conical surface is formed at one side, away from the reducing part, of each convex part. Meanwhile, the invention also discloses a using method of the inflatable hole sealing device. The inflatable hole sealing device has technical effects of good sealing performance, good scraping prevention effect, and high durability.

Description

technical field [0001] The invention relates to the field of coal mine grouting devices, in particular to a hole sealing device for drilling and grouting and a method for using the same. Background technique [0002] Borehole grouting and borehole gas extraction need to be sealed. At present, commonly used drilling sealing technologies include cement mortar plugging, polyurethane foam plugging, and inflatable capsule hole sealers. Among them, the inflatable capsule plugging can quickly plug the borehole by inflating it. After the construction is completed, it is more convenient to remove or move the hole sealer by deflation, so it has been widely used. [0003] But the capsule of existing inflatable capsule hole sealer adopts rubber material, and the rubber material part is in contact with the borehole wall, and the expansion force is limited, so it is easy to leak between the capsule and the borehole wall. In addition, after a certain period of time, the rubber is easy to ...

Claims

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Application Information

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IPC IPC(8): E21B33/13E21F7/00
CPCE21B33/13E21F7/00
Inventor 高盛翔刘春香马洪玉张晓堃曹明永印俊付天池李克松
Owner 徐州中矿岩土技术股份有限公司
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