CN207513579U - A kind of three-stage capsule sealing device of mash gas pumping drilling - Google Patents

Abstract

A kind of three-stage capsule sealing device of mash gas pumping drilling, belongs to mash gas pumping drilling technical field of sealing technology, and the technical problem to be solved is that provide a kind of coal mine gas extraction drill hole sealing device at low cost, effect is good, used technical solution：A kind of three-stage capsule sealing device of mash gas pumping drilling, the first capsule and the second capsule are connected to the both ends of gas pumping pipe by connector respectively；First capsule includes the first plastic pipe, the first capsule body and explosive valve, the first capsule body is enclosed with outside first plastic pipe central slot, the junction that first capsule body one end and the junction of groove are equipped with the first grouting port, the other end and groove is equipped with grout outlet and explosive valve, the outside of second plastic pipe central slot is enclosed with the second capsule body, second capsule body one end and the junction of groove are equipped with the second grouting port, and the utility model is used for mash gas pumping drilling.

Description

A kind of three-stage capsule sealing device of mash gas pumping drilling

Technical field

A kind of three-stage capsule sealing device of mash gas pumping drilling, belongs to underground coal mine coal working face, stone door punching coal The mash gas pumping drilling technical field of sealing technology in the places such as place, coal road.

Background technology

Gas Disaster is one of China's coal-mine Major Natural Disasters, has become the main lance for restricting Safety of Coal Mine Production at present Shield, while gas control is the key point of China's coal-mine lasting exploit, wherein being watt by construction drill mash gas extraction technology The effective means that this integrated control utilizes.In coal mine gas drainage work, the sealing quality of drilling is to influence extraction effect The key factor of fruit.

At present, the mash gas pumping drilling encapsulating method that coal mine uses mainly has：Tradition " a two stifled notes " sealing, polyurethane are close Envelope.Wherein tradition " a two stifled notes " method of pore sealing problem is mainly manifested in：Plug is individually one in " a two stifled notes " technique Technique, it is necessary first to stifled, the problem of this results in complex procedures, workload increase；" two is stifled " intensity is low, and both ends plug blocks strong Spend that low, effect is poor, grouting pressure does not increase, sealing of hole even not with pressure, it is impossible to borehole circumference crack is tightly blocked, it can not Achieve the purpose that " to note ".Polyurethane seal then often because seal length not enough, be difficult to penetrate into borehole fissure due to be not achieved it is ideal Sealing state, sealing material have certain toxicity, and price is high, cause to seal of high cost, and coal mine is difficult to bear.Therefore, to understand The certainly sealing problem of mash gas pumping drilling, urgent need seek completely new sealing structure and method, meet the drilling of underground coal mine high quality Seal request.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of coal mine gas extraction drill holes at low cost, effect is good Sealing device.

In order to solve the above technical problems, technical solution used by the utility model：Three sections of a kind of mash gas pumping drilling Formula capsule sealing device, including the first capsule, gas pumping pipe, the second capsule and connector；

First capsule and the second capsule are connected to the both ends of gas pumping pipe by connector respectively；

First capsule includes the first plastic pipe, the first capsule body and explosive valve, the first plastic pipe middle part Groove is provided with, is enclosed with the first capsule body in the outside of groove, the junction of described first capsule body one end and groove is equipped with the The junction of one grouting port, the other end and groove is equipped with grout outlet and explosive valve, and the first grouting port and grout outlet are respectively positioned on The top of explosive valve, at the same equipped with the first grouting port one end far from gas pumping pipe, one end equipped with grout outlet close to gas Drainage tube；

Second capsule includes the second plastic pipe and the second capsule body, is provided in the middle part of second plastic pipe recessed Slot, is enclosed with the second capsule body in the outside of groove, and the junction of described second capsule body one end and groove is equipped with the second slip casting Mouthful, and one end equipped with the second grouting port is close to gas pumping pipe.

First grouting port, the second grouting port and grout outlet are can be with the fast interface of pipeline rapid abutting joint.

First plastic pipe, the second plastic pipe are made of high strength polyethylene material；

First capsule body and the second capsule body are made by high resiliency, heat-resisting, ageing-resistant EP rubbers.

Compared to the prior art the utility model has the advantages that.

First, the utility model is designed by the three-stage of a capsule, gas pumping pipe, the second capsule, dispenses tradition " two The link of " stifled " in a stifled note " hole-sealing technology, simplifies process, while be directly connected to three sections simultaneously further through connector Sealing of hole sections are formed, it is more convenient.

2nd, the utility model is simple in structure, reasonable design, easy to operate, of low cost, significant sealing affection, Ke Yiyou Effect blocks drilling and its circumferential crack, improves gas pumping effect.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Fig. 2 is the structure diagram of the first capsule.

Fig. 3 is the structure diagram of the second capsule.

Fig. 4 is the usage state diagram after the first capsule body, the expansion of the second capsule body.

In figure, 1 is the first capsule, and 2 be gas pumping pipe, and 3 be the second capsule, and 4 be connector, and 5 be Grouting Pipe, and 6 is bore Hole, 7 be grouting pump, and 8 be sealing slurries, and 9 be sealing of hole area, and 11 be the first plastic pipe, and 12 be the first capsule body, and 13 be explosion Valve, 14 be the first grouting port, and 15 be grout outlet, and 31 be the second plastic pipe, and 32 be the second capsule body, and 33 be the second grouting port.

Specific embodiment

As Figure 1-Figure 4, the three-stage capsule sealing device of a kind of mash gas pumping drilling, including the first capsule 1, gas Drainage tube 2, the second capsule 3 and connector 4；

First capsule, 1 and second capsule 3 is connected to the both ends of gas pumping pipe 2 by connector 4 respectively；

First capsule 1 includes the first plastic pipe 11, the first capsule body 12 and explosive valve 13, first plastic tube The middle part of part 11 is provided with groove, is enclosed with the first capsule body 12 in the outside of groove, described first capsule body, 12 one end and groove The junction that junction is equipped with the first grouting port 14, the other end and groove is equipped with grout outlet 15 and explosive valve 13, and the first note Slurry mouth 14 and grout outlet 15 are respectively positioned on the top of explosive valve 13, while one end equipped with the first grouting port 14 is far from gas pumping pipe 2nd, one end equipped with grout outlet 15 is close to gas pumping pipe 2；

Second capsule 3 includes the second plastic pipe 31 and the second capsule body 32,31 middle part of the second plastic pipe Groove is provided with, is enclosed with the second capsule body 32 in the outside of groove, the junction of described second capsule body, 32 one end and groove is set There is the second grouting port 33, and one end equipped with the second grouting port 33 is close to gas pumping pipe 2.

First grouting port 14, the second grouting port 33 and grout outlet 15 are can be with the fast grafting of pipeline rapid abutting joint Mouthful.

First plastic pipe 11, the second plastic pipe 31 are made of high strength polyethylene material；

First capsule body, 12 and second capsule body 32 by high resiliency, heat-resisting, ageing-resistant EP rubbers make and Into.

The working process of the utility model is as follows：First capsule 1, gas pumping pipe 2, the second capsule 3 are passed through company by the first step Fitting 4 connects, and grout outlet 15 is connect with the second Grouting Pipe 5 of grouting port 33；

The first capsule 1, gas pumping pipe 2, the second capsule 3 that first step connection is completed are sent into drilling 6 by second step；

Third walks, and the first grouting port 14 is connect, and start grouting pump 7 with the grouting pump 7 outside drilling 6；

4th step starts sealing slurries 8 injecting the first capsule 1 by grouting pump 7, after the first capsule 1 fills, sealing Slurries 8 inject the second capsule along Grouting Pipe 5；

5th step, lasting injection sealing slurries 8, until the first capsule body 12, the second capsule body 32 are in sealing 8 pressure of slurries Effect is lower to be expanded and is fitted closely with 6 walls of drilling；

6th step continues injection sealing slurries 8, until the pressure of sealing slurries 8 opens explosive valve 13 so that sealing slurry Liquid 8 injects sealing of hole area 9；

7th step, after sealing slurries 8 are filled sealing of hole area 9, sealing slurries 8 are under pressure then around drilling 6 Crack infiltration, until crack fill sealing slurries 8；

8th step after 6 surrounding cracks of drilling fill sealing by sealing slurries 8, closes grouting pump 7, stops sealing slurries 8 Injection.

Above-described embodiment is the explanation to the utility model structure and unrestricted, is not departing from the utility model principle premise Lower made deformation is also within the protection scope of the utility model.

Claims (3)

1. a kind of three-stage capsule sealing device of mash gas pumping drilling, it is characterised in that：Including the first capsule（1）, gas take out Adopt pipe（2）, the second capsule（3）And connector（4）；

First capsule（1）With the second capsule（3）Pass through connector respectively（4）It is connected to gas pumping pipe（2）Both ends；

First capsule（1）Including the first plastic pipe（11）, the first capsule body（12）And explosive valve（13）, first modeling Expects pipe part（11）Middle part is provided with groove, and the first capsule body is enclosed in the outside of groove（12）, first capsule body（12）One End and the junction of groove are equipped with the first grouting port（14）, the other end and groove junction be equipped with grout outlet（15）And explosive valve （13）, and the first grouting port（14）And grout outlet（15）It is respectively positioned on explosive valve（13）Top, while equipped with the first grouting port （14）One end far from gas pumping pipe（2）, equipped with grout outlet（15）One end close to gas pumping pipe（2）；

Second capsule（3）Including the second plastic pipe（31）With the second capsule body（32）, second plastic pipe（31） Middle part is provided with groove, and the second capsule body is enclosed in the outside of groove（32）, second capsule body（32）One end and groove Junction is equipped with the second grouting port（33）, and equipped with the second grouting port（33）One end close to gas pumping pipe（2）.

2. a kind of three-stage capsule sealing device of mash gas pumping drilling according to claim 1, it is characterised in that：It is described First grouting port（14）, the second grouting port（33）And grout outlet（15）Being can be with the fast interface of pipeline rapid abutting joint.

3. a kind of three-stage capsule sealing device of mash gas pumping drilling according to claim 1 or 2, it is characterised in that： First plastic pipe（11）, the second plastic pipe（31）It is made of high strength polyethylene material；

First capsule body（12）And second capsule body（32）By high resiliency, the making of heat-resisting, ageing-resistant EP rubbers Into.