Array type silencer filled with ultra-light sound absorption foam for coal mine main ventilator machine room

Abstract

The utility model relates to the technical field of noise reduction of ventilator rooms, in particular to an array type silencer filled with ultra-light sound absorption foam for a main ventilator room of a coal mine. According to the technical scheme, the ventilation machine room comprises a ventilation machine room body, an air inlet pipe, an air outlet pipe and a limiting frame, and a screw is welded to the inner wall of the ventilation machine room body; a first shell is installed on the screw rod through threads, and second sound absorption foam is arranged on the inner wall of the first shell. Mounting blocks are welded to the top end face and the bottom end face of the limiting frame. An air inlet pipe and an air outlet pipe are fixedly embedded in the top end face of the ventilation machine room body. And second shells are connected in the air inlet pipe and the air outlet pipe in a sleeved mode, first sound absorption foam is arranged in the second shells, second bolts are installed in the installation blocks through threads, and the second bolts are installed in the ventilation machine room body through threads. The noise reduction device meets the requirement for noise reduction of the ventilator room, can be adjusted according to the actual installation position and requirements during noise reduction, and can be replaced according to the actual damaged position.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction in a ventilator room, in particular to an array type silencer filled with ultra-light sound-absorbing foam in a main ventilator room of a coal mine. Background Art

[0002] Coal mining is the process of mining coal resources in coal-rich areas. These are generally classified as underground and open-pit mines. When the coal seam is far from the surface, tunnels are typically excavated underground, creating an underground mine. When the coal seam is close to the surface, the coal is typically extracted by directly removing the surface soil, creating an open-pit mine.

[0003] Existing coal mines mostly use ventilation rooms to place power distribution equipment for mining equipment during mining. However, when using the ventilation room, the internal equipment will often generate mechanical noise due to air flow and electrical equipment, which will affect the surrounding environment. When reducing noise in the ventilation room, panel-type integrated sound insulation cotton is often used for noise reduction. However, after installation, it cannot be adjusted according to actual damage or the location where the equipment needs to be installed in the room, resulting in the need for re-cutting operations during use, so it still needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an array type silencer filled with ultra-light sound-absorbing foam for a main ventilation fan room of a coal mine, so as to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: an array type silencer filled with ultra-light sound-absorbing foam in the main ventilation room of a coal mine, comprising a ventilation room body, an air inlet pipe, an air outlet pipe and a limit frame,

[0006] The inner wall of the ventilation room body is welded with screws;

[0007] The screw rod is provided with a shell 1 through a thread, and the inner wall of the shell 1 is provided with a sound-absorbing foam 2;

[0008] The top end surface and the bottom end surface of the limit frame are both welded with mounting blocks;

[0009] An air inlet pipe and an air outlet pipe are embedded and fixed on the top surface of the ventilation room body;

[0010] The air inlet pipe and the air outlet pipe are both sleeved with a shell 2, and sound-absorbing foam 1 is arranged in the shell 2.

[0011] Preferably, a support block is welded to the bottom end surface of the ventilation room body, and there are four support blocks in total, and the four support blocks are distributed in a rectangular array relative to the ventilation room body. The ventilation room body can be installed and supported by the support blocks.

[0012] Preferably, a cover plate is installed on the front face of the ventilation room body via a hinge, and a handle is installed on the cover plate. The ventilation room body can be opened and closed by installing the handle on the cover plate.

[0013] Preferably, a second bolt is threadedly installed in the mounting block, and the second bolt is threadedly installed in the ventilation room body. The second bolt is threadedly installed in the ventilation room body, so that the mounting block can be installed in the ventilation room body through the second bolt.

[0014] Preferably, the air inlet pipe and the air outlet pipe are both in gas communication with the ventilation room body, so that the ventilation room body can take in air and out air through the air inlet pipe and the air outlet pipe respectively.

[0015] Preferably, the air inlet pipe and the air outlet pipe are both threadedly mounted with a bolt 1, and the bolt 1 is threadedly mounted in the housing 2. The bolt 1 is threadedly mounted in the housing 2, so that the housing 2 is mounted by the bolt 1 when it is sleeved in the air inlet pipe and the air outlet pipe.

[0016] Preferably, a sealing gasket is fitted on the outer surface of the second shell. By fitting the sealing gasket on the outer surface of the second shell, when the second shell is installed and sleeved in the air inlet pipe and the air outlet pipe, the second shell can be composed of four groups and installed inside. During installation, the four groups of second shells are closed by the sealing gasket to prevent gas leakage from the connection.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The utility model provides a shell 1, so when personnel are using the main ventilation room body of a coal mine, they can fill the sound-absorbing foam 2 inside the shell 1. After filling, personnel can firmly install the shell 1 on the screw with the help of threads. Moreover, through the arrangement of multiple groups of shells 1, an array-type silencer can be constructed, thereby effectively reducing internal noise. More importantly, this design of installing on the screw through threads allows each shell 1 to be disassembled and combined individually, thereby perfectly adapting to the needs of the actual installation position of the internal equipment, and can be easily disassembled and replaced individually after damage occurs. After the installation is completed, personnel can also use bolt 2 to firmly install the mounting block inside the ventilation room body. After the installation is completed, the limit frame will again implement the limit operation on the shell 1, so that the installation and use requirements of the silencer can be fully met.

[0019] 2. The utility model sets up a shell 2. When personnel use the main ventilation room body of the coal mine, in order to effectively avoid the noise generated during the air intake and exhaust process in the ventilation room body, personnel can respectively firmly install four groups of shells 2 inside the air intake pipe and the air outlet pipe using bolts 1. After the installation is completed, with the help of the layout of multiple groups of shells 2, they together form a high-efficiency array-type silencer. In this process, the corrugated sound-absorbing foam 1 inside the shell 2 plays a key role. It can effectively absorb the noise generated during the air intake and exhaust process, thereby achieving the effect of sound absorption and noise reduction. And when the sound-absorbing foam 1 in a separate shell 2 is damaged, personnel can remove the bolt 1 at the damaged part and disassemble the damaged shell 2 separately. In this way, not only can the later silencer needs be met, but also targeted replacement and maintenance can be carried out according to the damage of the individual position to ensure that the silencer always maintains a good working condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0022] Figure 3 This is an enlarged structural diagram of the second shell of the present utility model;

[0023] Figure 4 This is an enlarged structural diagram of the limit frame of the utility model;

[0024] Figure 5 It is an enlarged structural diagram of the shell of the present invention.

[0025] In the figure: 1. Mounting block; 2. Support block; 3. Ventilation room body; 4. Air inlet pipe; 5. Air outlet pipe; 6. Bolt 1; 7. Screw; 8. Shell 1; 9. Limiting frame; 10. Sound-absorbing foam 1; 11. Cover plate; 12. Shell 2; 13. Bolt 2; 14. Sound-absorbing foam 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figure 1-Figure 5As shown, the utility model proposes an array type silencer filled with ultra-light sound-absorbing foam in the main ventilation room of a coal mine, comprising a ventilation room body 3, an air inlet pipe 4, an air outlet pipe 5 and a limit frame 9.

[0029] The inner wall of the ventilation room body 3 is welded with a screw 7;

[0030] The screw rod 7 is threadedly mounted with a housing 8, and the inner wall of the housing 8 is provided with a sound-absorbing foam 2 14;

[0031] The top and bottom surfaces of the limiting frame 9 are both welded with mounting blocks 1;

[0032] The top surface of the ventilation room body 3 is embedded with an air inlet pipe 4 and an air outlet pipe 5;

[0033] The air inlet pipe 4 and the air outlet pipe 5 are both sleeved with a shell 2 12 , and sound-absorbing foam 10 is provided in the shell 2 12 .

[0034] The sound absorbing foam 10 and the sound absorbing foam 2 14 can be made of BASF sound absorbing foam, thereby reducing the weight to form ultra-light sound absorbing foam.

[0035] A support block 2 is welded to the bottom end surface of the ventilation room body 3. There are four support blocks 2 in total, and the four support blocks 2 are distributed in a rectangular array relative to the ventilation room body 3. The ventilation room body 3 can be installed and supported by the support blocks 2.

[0036] The front end face of the ventilation room body 3 is provided with a cover plate 11 through a hinge, and a handle is provided on the cover plate 11. The ventilation room body 3 can be opened and closed by the handle provided on the cover plate 11, and a lock buckle and a lock pair can be respectively provided on the cover plate 11 for closing.

[0037] A second bolt 13 is threadedly installed in the mounting block 1 , and the second bolt 13 is threadedly installed in the ventilation room body 3 , so that the mounting block 1 can be installed in the ventilation room body 3 through the second bolt 13 .

[0038] Based on Example 1: When personnel are using the main ventilation room body 3 of a coal mine, they can fill the shell 8 with sound-absorbing foam 2 14. After filling, the personnel can install the shell 18 on the screw 7 through threads, and form an array silencer by setting multiple groups of shells 18 to reduce internal noise, and the setting installed by threads on the screw 7 can be disassembled and assembled separately, so as to meet the requirements of separate disassembly and replacement according to the actual installation position of the internal equipment and after damage, and after installation, the personnel can install the mounting block 1 in the ventilation room body 3 through the bolt 2 13, and after installation, the limit frame 9 limits the shell 8 again, so as to meet the requirements of installation and use of the silencer.

[0039] Example 2

[0040] like Figure 1-Figure 5 As shown, the utility model proposes an array type silencer filled with ultra-light sound-absorbing foam in the main ventilation room of a coal mine. Compared with the first embodiment, this embodiment further includes: a ventilation room body 3, an air inlet pipe 4, an air outlet pipe 5 and a limit frame 9.

[0041] The inner wall of the ventilation room body 3 is welded with a screw 7;

[0042] The screw rod 7 is threadedly mounted with a housing 8, and the inner wall of the housing 8 is provided with a sound-absorbing foam 2 14;

[0043] The top and bottom surfaces of the limiting frame 9 are both welded with mounting blocks 1;

[0044] The top surface of the ventilation room body 3 is embedded with an air inlet pipe 4 and an air outlet pipe 5;

[0045] The air inlet pipe 4 and the air outlet pipe 5 are both sleeved with a shell 2 12, and the shell 2 12 is provided with a sound-absorbing foam 10. When the sound-absorbing foam 10 is filled in the shell 2 12, a preset mold can be used to fill it in a corrugated manner.

[0046] The air inlet pipe 4 and the air outlet pipe 5 are both in gas communication with the ventilation room body 3, so that the ventilation room body 3 can take in and out air through the air inlet pipe 4 and the air outlet pipe 5 respectively, and fans are installed in the air inlet pipe 4 and the air outlet pipe 5 for air intake and exhaust operations.

[0047] Bolt 1 6 is threadedly installed on both the air inlet pipe 4 and the air outlet pipe 5, and bolt 1 6 is threadedly installed in the shell 2 12. When bolt 1 6 is threadedly installed in the shell 2 12, the shell 2 12 is installed by bolt 1 6 when it is sleeved in the air inlet pipe 4 and the air outlet pipe 5.

[0048] The outer surface of the shell 2 12 is fitted with a sealing gasket. The outer surface of the shell 2 12 is fitted with a sealing gasket, so that when the shell 2 12 is installed and sleeved in the air inlet pipe 4 and the air outlet pipe 5, the shell 2 12 can be composed of four groups and installed inside. During installation, the four groups of shells 2 12 are closed by sealing gaskets to prevent gas leakage from the connection.

[0049] Based on Example 2: When personnel are using the main ventilation room body 3 of a coal mine, in order to avoid noise generated by the intake and exhaust of the ventilation room body 3, personnel can install four groups of shells 2 12 in the intake pipe 4 and the outlet pipe 5 through bolts 16 respectively. After installation, an array silencer is formed by setting up multiple groups of shells 2 12, and the noise generated by the intake and exhaust of the air is absorbed and reduced by the corrugated sound-absorbing foam 10 in the shell 2 12. When the sound-absorbing foam 10 in a single shell 2 12 is damaged, the bolts 6 at the damaged part are removed separately to meet the disassembly requirements, thereby meeting the requirements of later silence and replacement and maintenance for damage at a single location.

[0050] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An array type silencer filled with ultra-light sound-absorbing foam for a main ventilation fan room of a coal mine, comprising a ventilation room body (3), an air inlet pipe (4), an air outlet pipe (5) and a limit frame (9), characterized in that: The inner wall of the ventilation room body (3) is welded with a screw (7); The screw rod (7) is provided with a housing (8) by means of a thread, and the inner wall of the housing (8) is provided with a sound-absorbing foam (14); The top end surface and the bottom end surface of the limiting frame (9) are both welded with mounting blocks (1); An air inlet pipe (4) and an air outlet pipe (5) are embedded and fixed on the top surface of the ventilation room body (3); The air inlet pipe (4) and the air outlet pipe (5) are both sleeved with a second shell (12), and a sound-absorbing foam (10) is arranged in the second shell (12).

2. The array-type muffler filled with ultra-light sound-absorbing foam for the main ventilation fan room of a coal mine according to claim 1, characterized in that: A support block (2) is welded to the bottom end surface of the ventilation room body (3), and there are four support blocks (2) in total. The four support blocks (2) are distributed in a rectangular array relative to the ventilation room body (3).

3. The array-type muffler filled with ultra-light sound-absorbing foam for the main ventilation fan room of a coal mine according to claim 2, characterized in that: A cover plate (11) is installed on the front end surface of the ventilation room body (3) via a hinge, and a handle is installed on the cover plate (11).

4. The array-type muffler filled with ultra-light sound-absorbing foam for a main ventilation fan room in a coal mine according to claim 1, characterized in that: A second bolt (13) is threadedly installed in the installation block (1), and the second bolt (13) is threadedly installed in the ventilation room body (3).

5. The array-type muffler filled with ultra-light sound-absorbing foam for a main ventilation fan room in a coal mine according to claim 1, characterized in that: The air inlet pipe (4) and the air outlet pipe (5) are both in gas communication with the ventilation room body (3).

6. The array-type muffler filled with ultra-light sound-absorbing foam for a main ventilation fan room in a coal mine according to claim 1, characterized in that: The air inlet pipe (4) and the air outlet pipe (5) are both threadedly mounted with a bolt (6), and the bolt (6) is threadedly mounted in the second housing (12).

7. The array-type muffler filled with ultra-light sound-absorbing foam for a main ventilation fan room in a coal mine according to claim 1, characterized in that: A sealing gasket is fitted on the outer surface of the second shell (12).

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