CN213331173U

CN213331173U - Drilling orifice gas drainage cross

Info

Publication number: CN213331173U
Application number: CN202020376299.1U
Authority: CN
Inventors: 马小辉; 李文福; 韩伟; 王永志
Original assignee: Shaanxi Binchangmengcun Mining Co ltd
Current assignee: Shaanxi Binchangmengcun Mining Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2021-06-01
Anticipated expiration: 2030-03-23

Abstract

The utility model discloses a drilling drill way gas drainage cross, including being responsible for, be responsible for and go up the rigid coupling and have exhaust tube and mud pipe, the level of exhaust tube is higher than the level of mud pipe, is responsible for and is provided with the filter screen with the junction of exhaust tube. The end part of one end of the main pipe is an inclined plane notch, and the end part of the other end of the main pipe is fixedly connected with a main pipe flange. The design of the inclined plane notch of the main pipe is convenient for the main pipe to be inserted into the drilling hole of the roadway wall part. The end part of the exhaust pipe is fixedly connected with an exhaust pipe flange, and an exhaust pipe valve is arranged on the exhaust pipe. The end part of the sludge discharge pipe is fixedly connected with a sludge discharge pipe flange, and a sludge discharge pipe valve is arranged on the sludge discharge pipe. The utility model discloses can be effectual the gas discharge that produces when will be under construction drilling, do not influence the construction progress, simple structure, easily processing.

Description

Drilling orifice gas drainage cross

Technical Field

The utility model belongs to the technical field of underground construction, a drilling drill way gas drainage cross is related to.

Background

When workers in the underground pre-pump drill hole before gas extraction, the free gas in the drill hole is too high, so that the pre-pump drill hole before gas extraction cannot be continuously constructed, and the construction progress and safety are seriously influenced. Therefore, a device is needed to be designed for pumping out free gas in the drilling hole, and construction progress and safety are ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drilling drill way gas drainage cross has solved the underground construction scene that exists among the prior art and has lacked the problem of taking out the downthehole free gas device of drilling out.

The utility model adopts the technical proposal that the drilling orifice gas drainage cross joint comprises a main pipe, and an exhaust pipe and a sludge discharge pipe are fixedly connected on the main pipe.

The utility model discloses a characteristics still lie in:

the level of the air exhaust pipe is higher than that of the sludge discharge pipe.

The end part of one end of the main pipe is an inclined plane notch, and the end part of the other end of the main pipe is fixedly connected with a main pipe flange.

The joint of the main pipe and the exhaust pipe is provided with a filter screen.

The end part of the exhaust pipe is fixedly connected with an exhaust pipe flange.

The end part of the sludge discharge pipe is fixedly connected with a sludge discharge pipe flange.

The exhaust pipe is provided with an exhaust pipe valve.

The mud pipe is provided with a mud pipe valve.

The utility model has the advantages that: the gas that produces when can be effectual will be under construction drilling is discharged, does not influence the construction progress. Simple structure and easy processing. The material source is wide in range,

drawings

FIG. 1 is a schematic structural view of a four-way device for gas drainage in a drilling hole of the present invention;

in the figure, 1, an exhaust pipe flange, 2, an exhaust pipe, 3, a main pipe flange, 4, a main pipe, 5, a sludge discharge pipe flange, 6, a sludge discharge pipe, 7, a filter screen, 8, an exhaust pipe valve and 9, a sludge discharge pipe valve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a drilling drill way gas drainage cross, is responsible for 6 including being responsible for, and the rigid coupling has exhaust tube 2 and mud pipe 4 on being responsible for 6, and the level of exhaust tube 2 is higher than the level of mud pipe 4, and the junction of being responsible for 6 and exhaust tube 2 is provided with filter screen 7.

The level of exhaust pipe 2 is higher than the level of mud pipe 4 and is avoided the coal slime to crowd into exhaust pipe 2 in, and filter screen 7 can block getting into the great debris of intraductal volume when taking out gas.

The end part of one end of the main pipe 6 is an inclined plane notch, and the end part of the other end is fixedly connected with a main pipe flange 3. The inclined plane notch design of the main pipe 6 is convenient for the main pipe 6 to be inserted into the tunnel wall part for drilling.

The end part of the exhaust pipe 2 is fixedly connected with an exhaust pipe flange plate 1, the exhaust pipe 2 is provided with an exhaust pipe valve 8, and the exhaust pipe valve 8 can be closed when mud is discharged.

The end part of the sludge discharge pipe 4 is fixedly connected with a sludge discharge pipe flange 5, a sludge discharge pipe valve 9 is arranged on the sludge discharge pipe 4, and the sludge discharge pipe valve 9 can be closed when gas is pumped.

The model of the flange plate related in the utility model is DN 100; the type of the related steel pipe is phi 108; and steel pipes and flange plates with other types and sizes can be selected according to the diameter of the gas drainage drill hole.

The utility model relates to a drilling drill way gas drainage cross, its theory of operation as follows:

the inclined plane notch of the main pipe 6 is inserted into a gas drilling hole for construction, the drill rod is deeply inserted into the gas drilling hole through the main pipe 6, then the flange plate 1 of the exhaust pipe is connected with a gas drainage branch pipeline through a buried line (a hose), gas generated during drilling is pumped away through the exhaust pipe 2 by utilizing negative pressure, and slime water generated during construction is discharged through the sludge discharge pipe 4.

The utility model relates to a drilling drill way gas drainage cross, its advantage lies in:

1. the height difference between the exhaust pipe and the mud pipe can prevent mud from flowing into the exhaust pipe in the mud discharging process.

2. The mud pipe valve and the exhaust pipe valve are opened and closed at different time periods, and whether gas pumping and mud discharging are carried out simultaneously or not can be selected according to the construction site conditions.

Claims

1. The utility model provides a drilling drill way gas drainage cross, its characterized in that, including being responsible for (6), the rigid coupling has exhaust tube (2) and mud pipe (4) on being responsible for (6), the level of exhaust tube (2) is higher than the level of mud pipe (4), the one end tip of being responsible for (6) is the inclined plane incision, and other end tip rigid coupling has and is responsible for ring flange (3), the junction of being responsible for (6) and exhaust tube (2) is provided with filter screen (7).

2. The four-way valve for gas drainage from a borehole opening according to claim 1, wherein the end of the gas extraction pipe (2) is fixedly connected with a flange (1) of the gas extraction pipe.

3. The four-way valve for gas drainage from a drilling hole according to claim 1, wherein a mud pipe flange (5) is fixedly connected to the end of the mud pipe (4).

4. A four-way drill hole port gas extraction according to claim 2 wherein the extraction tube (2) is provided with an extraction tube valve (8).

5. A four-way valve according to claim 4, wherein the mud pipe (4) is provided with a mud pipe valve (9).