CN203335016U

CN203335016U - Pressure bearing type grouting hole packer with pulp returning prevention device

Info

Publication number: CN203335016U
Application number: CN201320337124XU
Authority: CN
Inventors: 程红军; 王胜利; 朱亚; 曲保伟
Original assignee: PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIPMENT MANUFACTURING Co Ltd
Current assignee: PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2013-06-13
Filing date: 2013-06-13
Publication date: 2013-12-11
Anticipated expiration: 2023-06-13

Abstract

A pressure bearing type grouting hole packer with a pulp returning prevention device comprises a grouting pipe. At least two cloth bags are arranged on the grouting pipe, a certain distance exists between every two adjacent cloth bags, the grouting pipe sequentially penetrates through the cloth bags, the tail end of the grouting pipe is closed, a check valve is arranged on the portion, inside each cloth bag, of each section of the grouting pipe, an explosion valve is arranged on the portion, between every two adjacent cloth bags, of the grouting pipe, the explosion valves are sleeved with a sleeve, a pressing ring is arranged between the inner hole wall of the sleeve and the outer wall of each explosion valve, the sleeve is composed of multiple sections of independent tube bodies, and the length of the sleeve composed of the multiple sections of tube bodies is larger than or equal to the total length of the explosion valves. The explosion valves are sleeved with the sleeve, the sleeve is pressed against the outer portions the explosion valves through pressing rings on the two sides of the sleeve, and therefore the pressure bearing type grouting hole packer with the pulp returning prevention device is simple in structure, capable of effectively solving the pulp returning problem produced after pulp injection is fully conducted, more convenient to operate, and capable of saving operation time.

Description

A kind of band prevents the fluid filling hole sealing device of anti-sizing device

Technical field

The utility model relates to the hole sealing device that a kind of coal bed drilled tunnel is used, and especially relates to the fluid filling hole sealing device that a kind of band prevents anti-sizing device.

Background technology

In coal seam, Gas Outburst is the Nature disaster that threatens Safety of Coal Mine Production, particularly in recent years along with the increase of the pit mining degree of depth, coal-bed gas pressure, gas bearing capacity increase gradually, in order to guarantee mine safety production, mine is adopted, is dug work plane and generally adopts the pre-gas pumping new technology of boring, thereby has brought shutoff and the sealing problem between extraction hole and extraction pipeline.At present, the way that addresses this problem common employing is: at the coal bed drilled tunnel, by slip casting method, in conjunction with cloth bag, be encapsulated, this device comprises Grouting Pipe and at least two s' cloth bag, be provided with explosive valve on the Grouting Pipe between two cloth bags, yet find that there is gradually in actual use following defect, one, when a plurality of cloth bags are not filled with, middle explosive valve just is opened, and causes the usability of this hole packer poor; Two,, when filling with slurry, often there will be anti-slurry phenomenon, for preventing anti-slurry, the workman often says the union bending that grouting pump is connected with Grouting Pipe and shuts to prevent anti-slurry, therefore causes this device result of use poor, complex operation.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of band to prevent the fluid filling hole sealing device of anti-sizing device, this device is by being provided with a sleeve pipe in the explosive valve outer cover, sleeve pipe is pressed in the outside of explosive valve by the both sides pressure ring, this is simple in structure, and efficiently solve the anti-slurry phenomenon of filling with after slurry, more convenient to operate, save the operating time.

The technical scheme that the utility model adopts is:

A kind of band prevents the fluid filling hole sealing device of anti-sizing device, comprise Grouting Pipe, at least be provided with two cloth bags on Grouting Pipe, be provided with an intersegmental distance between every two cloth bags, described Grouting Pipe penetrates each cloth bag successively, the Grouting Pipe endcapped, be positioned at each section of Grouting Pipe on the part of cloth bag and be provided with inlet non return check valve, be provided with explosive valve on the Grouting Pipe between two cloth bags, the outer cover of described explosive valve is provided with sleeve pipe, be provided with pressure ring between casing tube internal hole wall and explosive valve outer wall, the described sleeve pipe body separate by multistage forms, length by the total length >=explosive valve of multistage body forming sleeves.

The beneficial effects of the utility model are: this device is by being provided with a sleeve pipe in the explosive valve outer cover, sleeve pipe is pressed in the outside of explosive valve by the both sides pressure ring, this is simple in structure, and efficiently solves the anti-slurry phenomenon of filling with after slurry, more convenient to operate, save the operating time.

The utility model is by be provided with a sleeve pipe in the explosive valve outer cover, the blasting time that its main role is the delay-action blasting valve, and can fully make slurry be full of a plurality of cloth bags, thereby effectively prevent from instead starching or overflowing, greatly improve the functional performance of this hole packer.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

The structural representation that Fig. 2 is the utility model borehole blasting valve.

Graphical indicia: 1, gas drainage pipe; 2, Grouting Pipe; 3, cloth bag; 4 inlet non return check valves; 5, explosive valve; 501, pressure ring, 6, sleeve pipe; 7, drilled tunnel; 8, coal seam.

The specific embodiment

As shown in the figure, the specific embodiment is as follows:

A kind of band prevents the fluid filling hole sealing device of anti-sizing device, comprise Grouting Pipe 2, at least be provided with two cloth bags 3 on Grouting Pipe 2, described cloth bag 3 is reeled and is formed a trepanning for the gas drainage pipe fixing of packing into, be provided with an intersegmental distance between every two cloth bags 3, described Grouting Pipe 2 penetrates each cloth bag 3 successively, Grouting Pipe 2 endcappeds, be positioned at Grouting Pipe 2 each sections on the part of cloth bag 3 and be provided with inlet non return check valve 4, be provided with explosive valve 5 on the Grouting Pipe 2 between two cloth bags 3, the outer cover of described explosive valve 5 is provided with sleeve pipe 6, be provided with pressure ring 501 between sleeve pipe 6 inner hole walls and explosive valve 5 outer walls, described sleeve pipe 6 body separate by multistage forms, length by the total length >=explosive valve 5 of multistage body forming sleeves 6, sleeve pipe is pressed in the outside of explosive valve by the both sides pressure ring, this hole packer is simple in structure, and efficiently solve the anti-slurry phenomenon of filling with after slurry, more convenient to operate, save the operating time.

This device in use, gas drainage pipe 1 is reeled and formed trepanning and stretch in drilled tunnel 7 through cloth bag 3, by Grouting Pipe 2 slip castings, gas drainage pipe 1 is supported and fixed in drilled tunnel 7, simultaneously by drilled tunnel 7 sealing, drilled tunnel 7 is got out on coal seam 8 by rig and in advance for the methane gas in the extraction coal seam.

Claims

1. a band prevents the fluid filling hole sealing device of anti-sizing device, comprise Grouting Pipe (2), at least be provided with two cloth bags (3) on Grouting Pipe (2), be provided with an intersegmental distance between every two cloth bags (3), described Grouting Pipe (2) penetrates each cloth bag (3) successively, Grouting Pipe (2) endcapped, be positioned on the part of cloth bag (3) and be provided with inlet non return check valve (4) in each section of Grouting Pipe (2), be positioned on the Grouting Pipe (2) between two cloth bags (3) and be provided with explosive valve (5), it is characterized in that:

The outer cover of described explosive valve (5) is provided with sleeve pipe (6), be provided with pressure ring (503) between sleeve pipe (6) inner hole wall and explosive valve (5) outer wall, by multistage, separate body forms described sleeve pipe (6), by the length of the total length >=explosive valve (5) of multistage body forming sleeves (6).