CN210432885U

CN210432885U - Dustproof device used in underground tunneling machine

Info

Publication number: CN210432885U
Application number: CN201921386082.2U
Authority: CN
Inventors: 李小富; 敖成龙; 侯建国; 李华
Original assignee: Guizhou Panjiang Refined Coal Co Ltd
Current assignee: Guizhou Panjiang Refined Coal Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-01
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a dustproof device used in an underground development machine, belonging to the technical field of mine dustproof devices; the device comprises a main pressure air pipe, one end of which is connected with a pressure fan; an air inlet branch pipe communicated with the main pressure air pipe is arranged on the main pressure air pipe; the other end of the air inlet branch pipe is communicated with the connecting pipe; a pressure reducing valve is arranged on the connecting pipe; the utility model also has the advantages of simple structure, low modification cost, short modification period, convenient popularization and use, stable and reliable control of the air pressure of the output airflow, dry and moisture-free output airflow and the like; the utility model discloses can also be used to the rig except that the entry driving machine, excavate the trial loader, on the device in the pit such as platform truck of holing.

Description

Dustproof device used in underground tunneling machine

Technical Field

The utility model relates to a mine dust keeper technical field, concretely relates to dust keeper that uses in tunnelling machine in pit.

Background

The lung is one of important organs for gas exchange and life maintenance of a human body, a certain amount of dust is inhaled in each breathing of the lung, and an inhalator suffers from diseases such as pneumoconiosis and the like due to excessive dust inhaled for a long time in the underground production process.

As a special underground working environment, the underground coal mine mainly has great influence on the health of underground workers due to the fact that dust is easily generated; the tunneling working face is the place most threatened by dust underground, especially a tunneling machine driver is the worker directly contacting the dust environment and is deeply harmed, under the condition of high-concentration dust, the dust problem cannot be solved by a common mask, most tunneling machine drivers usually adopt a common mask to be soaked in water and then put on the nose and mouth, and obviously, the measure is neither sanitary nor can thoroughly solve the dust problem; meanwhile, the problem that how to provide effective dustproof protection measures for a driver of the heading machine and reduce dust harm to the driver of the heading machine is an important problem to be solved urgently at present because a large dustproof tool cannot be used in a working environment and a tool which influences the visual field such as a gas mask cannot be used.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the dustproof device used in the underground heading machine is provided to solve the problems that a driver of the existing underground heading machine lacks an effective dustproof means and is easily influenced by dust in the heading process.

In order to solve the above problem, the utility model provides a following technical scheme:

a dustproof device used in an underground tunneling machine comprises a main pressure air pipe, wherein one end of the main pressure air pipe is connected to a pressure fan; an air inlet branch pipe communicated with the main pressure air pipe is arranged on the main pressure air pipe; the other end of the air inlet branch pipe is communicated with the connecting pipe; a pressure reducing valve is arranged on the connecting pipe; the mask is provided with an air inlet, and two ends of the hose are respectively connected and installed at the tail end of the connecting pipe and the air inlet of the mask.

Preferably, an air inlet valve is further arranged between the air inlet branch pipe and the connecting pipe.

Preferably, a pressure regulating device is provided on the pressure reducing valve.

Preferably, a gas-liquid separator is further installed on the connection pipe.

Preferably, the mask is further provided with a one-way exhaust valve, and the air inlet and the one-way exhaust valve are respectively arranged on the upper side and the lower side of the mask.

The utility model discloses beneficial effect:

the utility model designs a dust mask which can provide effective positive pressure input airflow for the underground development machine by utilizing the air compressor which conveys air to the underground from the coal mine, and the dust mask uses various pipelines as airflow passages and uses the pressure reducing valve to control the airflow flow input to the dust mask, thereby effectively solving the problems that the driver of the current underground development machine lacks effective dustproof means and is easily influenced by dust in the process of development work; on the other hand, the utility model discloses still have simple structure, reform transform low cost, the transformation time limit for a project is short, and convenient to popularize and use is reliable and stable to the control of output air current atmospheric pressure, and the dry advantage such as moisture of output air current, in addition the utility model discloses except can using on the entry driving machine in the pit, at the rig simultaneously, excavate the trial loader, machinery such as drilling platform truck carries out the in-process of operations such as pneumatic drill drilling, whitewashing can both provide the effect of effectual dustproof oxygen suppliment for operating personnel in the pit.

Drawings

Fig. 1 is a schematic structural view of the present invention in an embodiment;

fig. 2 is a front view of the mask in this embodiment;

description of reference numerals: 1. the air compressor comprises a pressure fan, 2, a main pressure air pipe, 3, an air inlet branch pipe, 4, a connecting pipe, 5, a pressure reducing valve, 6, a hose, 7, a mask, 8, an air inlet valve, 9, a gas-liquid separator, 51, a pressure adjusting device, 71, an air inlet, 72 and a one-way exhaust valve.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

example (b):

referring to fig. 1, the present embodiment provides a dust-proof device used in a down-hole heading machine, which includes a main compressed air pipe 2 having one end connected to a compressed air fan 1; the method is characterized in that: an air inlet branch pipe 3 communicated with the main pressure air pipe 2 is arranged on the main pressure air pipe 2; the other end of the air inlet branch pipe 3 is communicated with a connecting pipe 4; a pressure reducing valve 5 is arranged on the connecting pipe 4; the mask is characterized by further comprising a hose 6 and a mask 7, wherein an air inlet hole 71 is formed in the mask 7, and two ends of the hose 6 are respectively connected and installed at the tail end of the connecting pipe 4 and the air inlet hole 71 of the mask 7. In the embodiment, the air pressure output through the hose 6 is 0.06-0.1MPa, and the air pressure in the mask 7 is greater than the air pressure in the tunneling roadway to form positive pressure, so that dust in the roadway is not easy to enter the mask in the tunneling operation process.

An air inlet valve 8 is also arranged between the air inlet branch pipe 3 and the connecting pipe 4; the pressure reducing valve 5 is provided with a pressure adjusting device 51. The flow rate and the corresponding pressure of the output airflow can be controlled by providing the intake valve 8 and the pressure adjusting device 51.

A gas-liquid separator 9 is also attached to the connection pipe 4. In the embodiment, the gas-liquid separator 9 is a Domineck WS15G type gas-water separator which is arranged in series with the pressure reducing valve 5; the gas-liquid separator 9 can ensure the output gas flow to be dry and free of moisture.

The mask 7 is further provided with a one-way exhaust valve 72, and the inlet hole 71 and the one-way exhaust valve 72 are respectively disposed at the upper and lower sides of the mask 7. In the present embodiment, the one-way exhaust valve 72 is made of WJ1901 type plastic, which is manufactured by vow corporation, and external dust can be prevented from entering the inside of the inlet cover 7 by using the one-way exhaust valve 72 on the premise of ensuring that air in the cover can flow out after the upper cover 7 is worn.

Claims

1. A dustproof device used in an underground heading machine comprises a main pressure air pipe (2) one end of which is connected with a pressure fan (1); the method is characterized in that: an air inlet branch pipe (3) communicated with the main pressure air pipe (2) is arranged on the main pressure air pipe (2); the other end of the air inlet branch pipe (3) is communicated with the connecting pipe (4); a pressure reducing valve (5) is arranged on the connecting pipe (4); the mask is characterized by further comprising a hose (6) and a mask (7), wherein an air inlet hole (71) is formed in the mask (7), and two ends of the hose (6) are respectively connected and installed at the tail end of the connecting pipe (4) and the air inlet hole (71) of the mask (7).

2. The dust-proof device for use in a downhole heading machine according to claim 1, wherein: an air inlet valve (8) is also arranged between the air inlet branch pipe (3) and the connecting pipe (4).

3. The dust-proof device for use in a downhole heading machine according to claim 1, wherein: the pressure reducing valve (5) is provided with a pressure adjusting device (51).

4. The dust-proof device for use in a downhole heading machine according to claim 1, wherein: and a gas-liquid separator (9) is also arranged on the connecting pipe (4).

5. The dust-proof device for use in a downhole heading machine according to claim 1, wherein: the mask (7) is also provided with a one-way exhaust valve (72), and the air inlet (71) and the one-way exhaust valve (72) are respectively arranged at the upper side and the lower side of the mask (7).