Fresh air device for driving face

Abstract

The utility model relates to the technical field of coal mine tunneling, in particular to a fresh air device for a tunneling working face. According to the technical scheme, the device comprises a bottom plate, a first pipeline and a second pipeline, a second fan is fixed to the front end of the upper surface of the bottom plate, one side of the second fan is sleeved with a first hose, a mounting hole is formed in the upper end of the outer wall of the first hose, the lower end of the outer wall of the second pipeline extends into the mounting hole and is fixed, and a first fan is fixed to the rear end of the upper surface of the bottom plate. One side of the first fan is sleeved with a second hose, a mounting hole is formed in the upper end of the outer wall of the second hose, the lower end of the outer wall of the first pipeline extends into the mounting hole and is fixed, and a harmful gas detection device is mounted at the upper end of the outer wall of the second hose. The harmful gas detection device has the advantages that harmful gas can be detected according to needs, meanwhile, the power for extracting the harmful gas can be controlled according to needs, the working efficiency is improved, and energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine excavation, in particular to a fresh air device for an excavation working face. Background Art

[0002] Coal mining refers to the process of mining in underground coal mines. This process usually involves using tools and equipment such as drills and blasting guns to extract coal from the rock formation underground. Coal mining is an important part of coal mining, which involves mining engineers and miners performing complex operations underground to obtain coal resources.

[0003] During coal mining, since the mine is underground, the air in the mine is relatively stale and contains harmful gases, which poses a huge threat to the health of the workers. Therefore, a fresh air device is needed to extract the stale air and harmful gases in the mine and then introduce fresh air. However, when the fresh air device extracts the harmful gases in the mine, it cannot detect the harmful gas content in the mine in real time, making it impossible to change the power and start and stop of the fan as needed, which easily leads to energy waste. Utility Model Content

[0004] The utility model aims to provide a fresh air device for an excavation working face, which has the advantages of being able to detect harmful gases as needed and controlling the power for extracting harmful gases as needed, thereby improving work efficiency and saving energy. It solves the problem of using a fresh air device to extract stale air and harmful gases in a mine and then introducing fresh air. However, when the fresh air device extracts harmful gases in a mine, it cannot detect the harmful gas content in the mine in real time, so that the power size and start and stop of the fan cannot be changed as needed, which easily leads to the problem of energy waste.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fresh air device for an excavation working face, comprising a base plate, a pipe 1 and a pipe 2, a fan 2 is fixed to the front end of the upper surface of the base plate, one side of the fan 2 is connected to a hose 1, an installation hole is provided at the upper end of the outer wall of the hose 1, the lower end of the outer wall of the pipe 2 extends into the installation hole and is fixed, a fan 1 is fixed to the rear end of the upper surface of the base plate, one side of the fan 1 is connected to a hose 2, an installation hole is provided at the upper end of the outer wall of the hose 2, the lower end of the outer wall of the pipe 1 extends into the installation hole and is fixed, and a harmful gas detection device is installed at the upper end of the outer wall of the hose 2.

[0006] Preferably, four rollers in a rectangular array are fixed to the lower surface of the bottom plate. The bottom plate can be supported by the four rollers, so that the overall movement and transportation of the device is stable.

[0007] Preferably, a control switch box is fixed to the front end of the bottom plate, and a display screen and buttons are sequentially mounted on the front end of the control switch box from top to bottom. The start and stop of fan 1, fan 2, electric valve 1 and electric valve 2 can be controlled by the control switch box.

[0008] Preferably, a handle is fixed to one side of the upper surface of the bottom plate, which facilitates pushing the entire device, saving time and effort.

[0009] Preferably, an electric valve 2 is installed at the rear end of the outer wall of the second pipeline. The second electric valve can control the opening and closing of the second pipeline.

[0010] Preferably, an electric valve 1 is installed at the front end of the outer wall of the pipeline 1. The opening and closing of the pipeline 1 can be controlled by the electric valve 1.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model sleeves hose one on one side of fan two, a mounting hole is provided at the upper end of the outer wall of hose one, the lower end of the outer wall of pipe two extends into the mounting hole and is fixed, fan one is fixed on the upper surface rear end of the bottom plate, fan one is sleeved on one side of hose two, a mounting hole is provided at the upper end of the outer wall of hose two, the lower end of the outer wall of pipe one extends into the mounting hole and is fixed, a harmful gas detection device is installed on the upper end of the outer wall of hose two, when it is necessary to ventilate the mine, hose one and hose two are put into the mine, fan one is started, air and harmful gas in the mine can be extracted, and at the same time the harmful gas detection device can detect the harmful gas content in the mine, so that the power of fan one can be controlled, and fan two is started at the same time, so that fresh air from the outside can be introduced into the mine, so that harmful gas can be detected as needed, and the power of extracting harmful gas can be controlled as needed, thereby improving work efficiency and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the bottom plate of the utility model;

[0015] Figure 3 This is a schematic diagram of the second main structure of the hose of the utility model;

[0016] Figure 4 It is a rear view structural schematic diagram of a hose of the present utility model.

[0017] In the figure: 1. Hose 1; 2. Hose 2; 3. Handle; 4. Bottom plate; 5. Roller; 6. Control switch box; 7. Harmful gas detection device; 8. Pipeline 1; 9. Electric valve 1; 10. Fan 1; 11. Fan 2; 12. Electric valve 2; 13. Pipeline 2. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 4 The utility model provides an embodiment: a fresh air device for an excavation working face, comprising a base plate 4, a pipe 1 8 and a pipe 2 13, a fan 2 11 is fixed to the front end of the upper surface of the base plate 4, four rollers 5 in a rectangular array are fixed to the lower surface of the base plate 4, a control switch box 6 is fixed to the front end of the base plate 4, a display screen and buttons are sequentially embedded and installed at the front end of the control switch box 6 from top to bottom, the base plate 4 can be supported by the four rollers 5, so that the overall movement and transportation of the device is stable, and the start and stop of the fan 10, the fan 2 11, the electric valve 1 9 and the electric valve 2 12 can be controlled by the control switch box 6.

[0020] One side of the fan 11 is connected to the hose 1, and the fan 11 can draw fresh air from the outside into the hose 1, and then discharge it through the pipe 13 to be distributed in the mine, providing fresh air for the mine. A mounting hole is opened at the upper end of the outer wall of the hose 1, and the lower end of the outer wall of the pipe 13 extends into the mounting hole and is fixed. An electric valve 12 is installed at the rear end of the outer wall of the pipe 13, and the conduction and closing of the pipe 13 can be controlled by the electric valve 12.

[0021] A fan 10 is fixed at the rear end of the upper surface of the bottom plate 4, and a handle 3 is fixed at one side of the upper surface of the bottom plate 4. The handle 3 is used to facilitate pushing the entire device, which saves time and effort. A hose 2 is connected to one side of the fan 10. The fan 10 draws stale air and harmful gases in the mine into the hose 2 and then discharges them through the fan 10. A mounting hole is provided at the upper end of the outer wall of the hose 2, and the lower end of the outer wall of the pipe 8 extends into the mounting hole and is fixed. An electric valve 9 is installed at the front end of the outer wall of the pipe 8, and the conduction and closing of the pipe 8 can be controlled by the electric valve 9. A harmful gas detection device 7 is installed at the upper end of the outer wall of the hose 2. The harmful gas detection device 7 can detect the harmful gas content in the mine. When the harmful gas content in the mine is too high, the power of the fan 10 can be increased to improve the harmful gas discharge efficiency in the mine. When the harmful gas in the mine is too low and has no effect on the health of the workers in the mine, the fan 10 can be shut down to improve work efficiency and save energy.

[0022] When it is necessary to introduce fresh air into the mine, the staff holds the handle 3 and pushes the device as a whole. The roller 5 rotates, and the device as a whole is moved and transported to a suitable position. The hose 1 is connected to the fan 2 11, and the hose 22 is connected to the fan 10. The hose 1 and the hose 22 are laid in the mine, and the control switch box 6 is operated to start the electric valve 1 9 and the electric valve 2 12, so that the pipeline 1 8 and the pipeline 2 13 are connected. Then the control switch box 6 is operated to start, and the fan 10 and the fan 2 11 are started. When the fan 10 is started, the stale air and harmful gases in the mine can be extracted. At the same time, the harmful gas detection device 7 can detect the harmful gases in the mine. When the harmful gas content is large, the power of the fan 10 is increased. When the harmful gas content is small, the power of the fan 10 is reduced. At the same time, the fan 2 11 is started again, so that the outside air can be introduced into the hose 1, and then discharged through the pipeline 2 13 and distributed in the mine. The harmful gas can be detected as needed, and the power for extracting the harmful gas can be controlled as needed, thereby improving work efficiency and saving energy.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fresh air device for a tunneling working face, comprising a base plate (4), a first pipe (8) and a second pipe (13), characterized in that: A fan 2 (11) is fixed at the front end of the upper surface of the base plate (4), and one side of the fan 2 (11) is connected to a hose 1 (1), and a mounting hole is provided at the upper end of the outer wall of the hose 1 (1), and the lower end of the outer wall of the pipe 2 (13) extends into the mounting hole and is fixed. A fan 1 (10) is fixed at the rear end of the upper surface of the base plate (4), and one side of the fan 1 (10) is connected to a hose 2 (2), and a mounting hole is provided at the upper end of the outer wall of the hose 2 (2), and the lower end of the outer wall of the pipe 1 (8) extends into the mounting hole and is fixed. A harmful gas detection device (7) is installed at the upper end of the outer wall of the hose 2 (2).

2. A fresh air device for a tunneling working face according to claim 1, characterized in that: Four rollers (5) in a rectangular array are fixed on the lower surface of the bottom plate (4).

3. A fresh air device for a tunneling working face according to claim 2, characterized in that: A control switch box (6) is fixed to the front end of the bottom plate (4), and a display screen and buttons are sequentially embedded and installed at the front end of the control switch box (6) from top to bottom.

4. A fresh air device for a tunneling working face according to claim 1, characterized in that: A handle (3) is fixed to one side of the upper surface of the bottom plate (4).

5. A fresh air device for a tunneling working face according to claim 1, characterized in that: An electric valve 2 (12) is installed at the rear end of the outer wall of the second pipeline (13).

6. A fresh air device for a tunneling working face according to claim 1, characterized in that: An electric valve (9) is installed at the front end of the outer wall of the pipeline (8).

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