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drill pipe sealer

A technology of hole sealer and drill pipe, which is applied in the direction of drill pipe, drill pipe, earthwork drilling and mining, etc., which can solve the problems of single type of hole sealer and complex structure, so as to improve the sealing efficiency and precision of holes, and improve the overall structure The effect of streamlining and simplifying the sealing procedure

Active Publication Date: 2022-06-03
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a drill rod type hole sealer to solve the problem of complex structure caused by the separation of multiple channels in the existing hole sealer and the single type of hole sealer due to the use of only liquid sealers

Method used

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Embodiment Construction

[0030] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of ​​the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0031] Among them, the accompanying drawings are only used for exemplary description, and represent only schematic diagrams, not physical drawings, and should not be ...

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Abstract

The invention relates to a drill pipe type hole sealing device, which belongs to the field of coal mine sealing and gas drainage. The hole sealing device includes filter pipes, connecting pipes, transfer pipes and water braids which are sequentially connected back and forth, and the respective inner chambers thereof form internal passages. Through the mutual cooperation of the first regulating valve arranged in the front port of the connecting pipe and the second regulating valve arranged in the rear port of the transfer pipe, the on-off nodes of the internal channel are controlled. In the sealing stage, the internal channel from the water braid to the front port of the connecting pipe is used as a liquid flow channel for the injection and overflow of the sealing liquid; The internal channels of the sections are used as air flow channels for gas drainage. The inner channel can be used successively for sealing liquid injection, sealing liquid overflow and gas drainage, realizing the three-in-one medium channel, so that the overall structure of the hole sealer is more streamlined. In addition, the sealing liquid and solid foaming agent are used to achieve solid-liquid mixed sealing, changing the traditional single mode of liquid sealing.

Description

technical field [0001] The invention belongs to the field of coal mine sealing and gas drainage, and relates to a drill rod type hole sealing device. Background technique [0002] In the process of gas treatment, the coal holes used for gas drainage must be sealed after the drilling is completed, and then gas drainage is carried out. The existing hole sealing device adopts the method of two plugs and one injection to complete the hole sealing, that is, the two ends are blocked by a certain length in the coal hole, and the sealing agent is injected in the middle to complete the hole sealing, which has the following disadvantages: (1) It is necessary to arrange three independent The pores are used for sealing agent injection, overflow and gas drainage respectively, resulting in a complex structure of the sealing device; (2) In order to meet the flow and injection of the sealing agent, the sealing agent must be liquid sealing agent; (3) The sealing device is short as a whole, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/13E21B33/14E21B34/08E21B43/00E21B43/08E21B17/00
CPCE21B33/13E21B33/14E21B34/08E21B43/006E21B43/086E21B17/00
Inventor 陈航李学忠辛德忠万军王清峰李和祥蒲剑雷万年罗华邱响林唐敏杜渔舟马振纲刘小华田乐意吕晋军杨林杨燕鸽
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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