Fan hush pipe of mining individual protection equipment

Abstract

The invention relates to a fan hush pipe of mining individual protection equipment, which is characterized in that the fan hush pipe (11) comprises a hush pipe main body pipe wall (8) and a hush pipe adapter (3), and the hush pipe main body pipe wall (8) is in a circular pipe shape and is made of flame-retardant and anti-static materials; silencing cotton (6) is arranged in the silencing pipe main body pipe wall (8), and the silencing cotton (6) is also of a circular tubular structure; the silencing cotton (6) is inserted into the silencing pipe main body pipe wall (8), and the outer diameter of the silencing cotton is consistent with the inner diameter of the silencing pipe and is just fit with the inner diameter of the silencing pipe; the fan silencing pipe has the advantages that the noise reduction effect is obvious, and the replaceability is high; 2, the flame-retardant anti-static material is suitable for being used in a mine environment; and 3, a quick-release structure is designed, so that the disassembly is convenient. The device is used for individual protection equipment in the mine working environment, the noise reduction effect is obvious, and the air volume is not affected.

Description

Technical Field

[0001] The present invention is a silencing pipe for a mine individual protection equipment fan, which relates to the technical field of mine safety equipment, especially a silencing pipe for a mine individual protection equipment fan. This silencing pipe is mainly used to reduce the noise generated by the mine fan, improve the communication efficiency of miners in the working environment, and at the same time meet the special requirements of flame retardancy and anti-static for underground operations. Technical Background

[0002] During the process of underground individual protection operations, the fan, as a key equipment for ventilation and air change, plays a crucial role in ensuring the air quality of the miners' working environment. However, the mine fan will generate relatively large noise during high-speed operation, which not only affects the hearing health of miners, but also may seriously hinder the effective communication between miners due to noise pollution, increasing the safety risks during operations. In addition, due to the special nature of the underground environment, the equipment used must have the characteristics of flame retardancy and anti-static to prevent accidents caused by generated electric sparks.

[0003] To solve the above problems, a silencing pipe for a mine individual protection equipment fan is proposed. Through special design, this silencing pipe can effectively reduce the noise generated by the fan, and at the same time meet the requirements of flame retardancy, anti-static and miners' breathing for underground operations. Specifically, this silencing pipe is directly connected to the outlet of the main unit. Through the internal structure and sound-absorbing materials, the silencing pipe reduces the noise generated by the fan to a reasonable range, thereby improving the working environment of miners and enhancing operation safety. Summary of the Invention

[0004] The purpose of the present invention is to provide a silencing pipe for a mine individual protection equipment fan, which can reduce the noise inside the helmet of the individual protection equipment without affecting the air supply volume of the power air supply product, is convenient to disassemble, and the pipe of the effect pipe is made of flame retardant and anti-static material, suitable for the underground explosion-proof environment.

[0005] An individual protective equipment fan silencing pipe for mining, characterized in that the fan silencing pipe 11 includes a silencing pipe main body pipe wall 8 and a silencing pipe adapter 3. The silencing pipe main body pipe wall 8 is in a circular tube shape and is made of a flame-retardant and anti-static material. A silencing cotton 6 is installed in the silencing pipe main body pipe wall 8, and the silencing cotton 6 is also in a circular tubular structure. The silencing cotton 6 is inserted into the silencing pipe main body pipe wall 8, and its outer diameter is the same as the inner diameter of the silencing pipe and keeps just fitting. A plurality of L-shaped grooves 7 are provided at one end of the silencing pipe main body pipe wall 8, and a plurality of protrusions 4 are provided on the outer wall of one end of the corresponding silencing pipe adapter 3. The silencing pipe adapter 3 is connected to the silencing pipe main body pipe wall 8 through the L-shaped grooves 7. A second circular sealing ring 5 is placed inside the pipe wall of the silencing pipe main body pipe wall 8 to ensure seamless connection between the silencing pipe main body pipe wall 8 and the silencing pipe adapter 3 and ensure no gas leakage at the connection. At the other end of the silencing pipe main body pipe wall 8, a plurality of L-shaped notches are provided for connecting with a ventilation hose 10. On the outer wall of the other end of the silencing pipe adapter 3, a pair of protrusions 2 are provided for reliable connection with the air outlet of the main machine 12, and a first circular sealing ring is provided at the air outlet of the main machine 12.

[0006] The silencing cotton 6 inserted into the silencing pipe main body pipe wall 8 is a flame-retardant and anti-static material of rectangular solid plastic open-cell foam with the same length as the silencing pipe main body pipe wall 8, and is rolled into a tube and then placed into the silencing pipe main body pipe wall 8.

[0007] The silencing pipe main body pipe wall 8 has a length ≥ 10 cm, an outer diameter of the circular tube shape of 34 mm - 36 mm, and a thickness of 2 mm - 6 mm.

[0008] The silencing pipe main body pipe wall 8 has a length of 10 cm - 12 cm, an outer diameter of the circular tube shape of 35 mm ± 0.5 mm, and a thickness of 5 mm ± 0.5 mm.

[0009] The silencing cotton 6 is made of a flame-retardant and anti-static material and is an antibacterial material.

[0010] The silencing pipe main body pipe wall 8 has a length of 10 cm ± 0.5 mm, an outer diameter of the circular tube shape of 35 mm ± 0.5 mm, and a thickness of 2 mm ± 0.2 mm.

[0011] Technical advantages of the present invention

[0012] The fan silencing pipe has the following technical characteristics and advantages:

[0013] 1. The fan silencing pipe has obvious noise reduction effect and strong replaceability;

[0014] 2. Made of flame-retardant and anti-static material, suitable for use in underground mining environment;

[0015] 3. Designed with a quick-release structure, convenient for disassembly.

[0016] 4. A sealing ring is designed at the interface, with good sealing effect and can effectively prevent dust.

[0017] Key points of the invention's technical solution

[0018] 1) It can be used as an individual protective equipment for underground mining working environment, with obvious noise reduction effect and no impact on air volume.

[0019] 2) The material is made of flame-retardant and anti-static material, which enables this component to be used in the underground environment together with the main machine.

[0020] 3) It is convenient to disassemble and assemble. The silencing pipe can be replaced and assembled at any time, and miners can use the silencing pipe according to their own needs. Description of the drawings

[0021] Figure 1 、Schematic diagram of the structure of the present invention;

[0022] Figure 2 、Schematic diagram of the structure of the present invention installed between the fan and the ventilation hose.

[0023] Wherein, 1 is the first circular sealing ring, 2 is a pair of protrusions, 3 is the silencing pipe adapter, 4 is a plurality of protrusions, 5 is the second circular sealing ring, 6 is the sound-absorbing cotton, 7 is the L-shaped groove, 8 is the wall of the silencing pipe main body, 9 is the L-shaped notch, 10 is the ventilation hose, 11 is the fan silencing pipe, and 12 is the main machine. Detailed implementation manners

[0024] The fan silencing pipe is composed of the wall of the silencing pipe main body and the silencing pipe adapter. Combining with the drawings, this effect pipe will be introduced in detail:

[0025] The silencing pipe is composed of the wall 8 of the silencing pipe main body and the sound-absorbing cotton 6. The wall 8 of the silencing pipe main body is cylindrical and is made of a flame-retardant and anti-static material with a thickness of 2 mm. The advantage of the flame-retardant and anti-static material is to prevent the generation of electric sparks due to friction, causing the ignition of combustible gases underground and leading to dangerous explosions. The sound-absorbing cotton 6 is a rectangular solid plastic open-cell foam with a thickness of 5 mm, produced into a circular cylindrical structure and inserted into the wall 8 of the silencing pipe main body. Its outer diameter is the same as the inner diameter of the silencing pipe, and it just fits tightly. The length of the sound-absorbing cotton 6 is the same as the length of the wall 8 of the sound-absorbing cotton main body. The sound-absorbing cotton 6 also belongs to the flame-retardant and anti-static material, and its advantages are the same as those of the wall 8 of the silencing pipe main body above, preventing the ignition of combustible gases caused by static electricity sparks underground and causing dangerous explosions, which is a hidden danger that must be eliminated underground.

[0026] The muffler pipe adapter 3 is connected to the wall 8 of the muffler pipe main body through an L-shaped groove 7. Specifically, a sealing ring 1 is provided on the outer side of the muffler pipe adapter 3 to ensure that there is no gas leakage with the main machine 12. The inner part of the wall of the muffler pipe main body is an L-shaped groove 7, and another circular sealing ring 5 is placed inside the wall to ensure seamless connection between the wall 8 of the muffler pipe and the muffler pipe adapter, and to ensure no gas leakage at the connection. There are 4 corresponding protrusions 4 on the outside of the muffler pipe adapter 3, and reliable connection is achieved through the action of "insertion - rotation". The sealing ring 1 is added to prevent the leakage of filtered gas.

[0027] The upper L-shaped through hole 9 of the wall 8 of the muffler pipe main body is connected to the ventilation hose 10, and reliable connection is achieved through the action of "insertion - rotation". The lower end of the wall 8 of the muffler pipe main body is reliably connected to the air outlet of the main machine 12. The connection method is as follows: there are symmetric protrusions at 180° at the air outlet 12 of the main machine, and the muffler pipe is reliably connected through "insertion - rotation".

[0028] 1. The designed effective noise reduction length of the muffler pipe is 10 cm, and it is cylindrical. To match the main ventilation pipeline, the outer diameter of the cylinder is 35 mm ± 0.5 mm, and there is 5 mm thick sound-absorbing cotton inside to effectively reduce the noise in the fan air supply pipeline.

[0029] 2. The material of the muffler pipe is flame-retardant and anti-static to prevent static electricity from being generated in the underground mine environment, resulting in accidents. The sound-absorbing cotton placed inside the muffler pipe uses a new antibacterial material to protect the health and safety of miners.

[0030] 3. The muffler pipe adopts a quick-disassembly and quick-connection method, and all joints are sealed with a sealing ring, with good sealing effect. The main ventilation pipeline can be directly connected to the main machine, or it can be first connected to the muffler pipe, and then the other end of the muffler pipe is connected to the main machine. Therefore, the muffler pipe interface adopts the same interface as the main ventilation pipeline, greatly improving the convenience and versatility of the use of the muffler pipe.

[0031] 4. After adding the muffler pipe, the effective value of the fan noise will be reduced from about 80 db to 60 db, with obvious noise reduction effect and no impact on the ventilation pipeline flow.

Claims

1. A silencing pipe for a mine individual protection equipment fan, characterized in that, The fan silencing pipe (11) includes a silencing pipe main body pipe wall (8) and a silencing pipe adapter (3). The silencing pipe main body pipe wall (8) is in a circular tube shape and is made of a flame-retardant and anti-static material. A silencing cotton (6) is installed in the silencing pipe main body pipe wall (8), and the silencing cotton (6) is also in a circular tube structure. The silencing cotton (6) is inserted into the silencing pipe main body pipe wall (8), and its outer diameter is the same as the inner diameter of the silencing pipe and just fits tightly. A plurality of L-shaped grooves (7) are provided at one end of the silencing pipe main body pipe wall (8). Corresponding protrusions (4) are provided on the outer wall of one end of the silencing pipe adapter (3). The silencing pipe adapter (3) is connected to the silencing pipe main body pipe wall (8) through the L-shaped grooves (7). A second circular sealing ring (5) is placed inside the pipe wall of the silencing pipe main body pipe wall (8) to ensure seamless connection between the silencing pipe main body pipe wall (8) and the silencing pipe adapter (3) and ensure no gas leakage at the connection. At the other end of the silencing pipe main body pipe wall (8), a plurality of L-shaped notches (9) are provided for connection with a ventilation hose (10). A pair of protrusions (2) are provided on the outer wall of the other end of the silencing pipe adapter (3) for reliable connection with the air outlet of the main machine (12), and a first circular sealing ring (1) is provided at the air outlet of the main machine (12).

2. The silencing pipe for the mine individual protection equipment fan according to claim 1, wherein, The silencing cotton (6) inserted into the silencing pipe main body pipe wall (8) is a flame-retardant and anti-static material of a rectangular solid plastic open-cell foam with a length equal to that of the silencing pipe main body pipe wall (8), and is rolled into a cylindrical shape and then placed into the silencing pipe main body pipe wall (8).

3. The fan silencing pipe for mine individual protection equipment according to claim 2, characterized in that the silencing pipe main body pipe wall (8) has a length ≥ 10 cm, an outer diameter of the circular tube shape of 34 mm - 36 mm, and a thickness of 2 mm - 6 mm.

4. The fan silencing pipe for mine individual protection equipment according to claim 1, characterized in that the silencing pipe main body pipe wall (8) has a length of 10 cm - 12 cm, an outer diameter of the circular tube shape of 35 mm ± 0.5 mm, and a thickness of 5 mm ± 0.5 mm.

5. The mine-used individual protection equipment air blower silencing pipe according to claim 2, wherein, The silencing cotton (6) is made of a flame-retardant and anti-static material and a bacteriostatic material.

6. The fan silencing pipe for mine individual protection equipment according to claim 1, characterized in that the silencing pipe main body pipe wall (8) has a length of 10 cm ± 0.5 mm, an outer diameter of the circular tube shape of 35 mm ± 0.5 mm, and a thickness of 2 mm ± 0.2 mm.

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