Noise reduction and silencing device in raw material field dust removal system

Abstract

The utility model provides a noise reduction and silencing device in a raw material yard dust removal system, which relates to the technical field of industrial dust removal and noise reduction and comprises a dust removal box, a fan arranged in the dust removal box, a sound insulation cover arranged on the side surface of the dust removal box, a first wave-absorbing material arranged in the sound insulation cover and a second wave-absorbing material arranged in the sound insulation cover. A first wave-absorbing material is arranged in the sound insulation cover, a second wave-absorbing material is arranged in the sound insulation cover, a third wave-absorbing material is arranged in the sound insulation cover, sound-absorbing cotton is arranged in the sound insulation cover, connecting plates are arranged on the two sides of the first wave-absorbing material, the two sides of the second wave-absorbing material and the two sides of the third wave-absorbing material, and the sound insulation cover, the first wave-absorbing material, the second wave-absorbing material, the third wave-absorbing material and the sound-absorbing cotton are adopted; the energy of noise can be gradually reduced, so that the level of noise finally reaching a receiving point is remarkably reduced, the level of noise finally reaching the receiving point is kept at the degree that human ears can feel comfortable, and the living environment of surrounding residential buildings on the two sides of the dust removal system and passing pedestrians is prevented from being interfered.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial dust removal and noise reduction, in particular to a noise reduction and silencing device in a dust removal system of a raw material field. Background Art

[0002] According to Chinese patent number CN217961824U, a self-diagnostic wet dust removal device includes a dust removal chamber, a dust sensor, an air intake pipe, a silencer, a spray pipe, a sensor self-adjusting valve, and an induced draft fan. The dust removal chamber is divided into three areas from the air intake to the air outlet: a first dust removal area, a second dust removal area, and a noise reduction area. Spray pipes are provided in both the first and second dust removal areas, a silencer is provided in the noise reduction area, and a sensor self-adjusting valve is provided on the spray pipe. The air intake of the dust removal chamber is connected to the air intake pipe, and a dust sensor and an induced draft fan are provided on the air intake pipe. The dust sensor is connected to the sensor self-adjusting valve. The utility model has a wide range of applicability and can be used in combination with mechanical dust removal, bag dust removal, and other systems, or it can be used alone for dust removal. It ensures that exhaust emissions meet emission standards while reducing the labor intensity of workers. Washing water is recycled to reduce costs.

[0003] The above-mentioned comparative documents and prior art have the following technical problems: the noise reduction and silencing devices in the existing raw material field dust removal systems mostly achieve sound suppression through simple soundproof covers or soundproof panels, and their sound insulation effect is not ideal. It is difficult to effectively isolate the noise generated by the operation of the internal fan and the additional noise caused by the collision of dust inside the equipment box. As a result, the noise problem causes noise interference to the living environment of the surrounding residential buildings and passers-by on both sides of the dust removal system, and also reduces the environmental friendliness of the entire dust removal system. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a noise reduction and silencing device in a dust removal system of a raw material field.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a noise reduction and silencing device in a dust removal system of a raw material field, comprising a dust removal box, a fan is provided inside the dust removal box, a sound insulation cover is provided on the side of the dust removal box, a first absorbing material is provided inside the sound insulation cover, a second absorbing material is provided inside the sound insulation cover, a third absorbing material is provided inside the sound insulation cover, and sound-absorbing cotton is provided inside the sound insulation cover, and connecting plates are provided on both sides of the first absorbing material, the second absorbing material and the third absorbing material.

[0006] Preferably, a dust suction duct is provided on the side of the dust removal box, and an exhaust duct is provided on the side of the dust removal box.

[0007] Preferably, a feeding hopper is provided at the bottom of the dust removal box, and supporting legs are provided at the bottom of the dust removal box.

[0008] Preferably, mounting holes are provided on the surfaces of the sound insulation cover and the connecting plate, and mounting bolts are provided on the surfaces of the mounting holes.

[0009] Preferably, the first absorbing material is arranged on one side of the dust removal box, the second absorbing material is arranged between the first absorbing material and the third absorbing material, and the third absorbing material is arranged on one side of the sound-absorbing cotton.

[0010] Preferably, the first absorbing material is wavy in shape, the second absorbing material and the third absorbing material are both arc-shaped, and the shapes of the second absorbing material and the third absorbing material are opposite.

[0011] Preferably, the sound-absorbing cotton is connected to the sound insulation cover by gluing, and the first absorbing material, the second absorbing material, the third absorbing material, the sound-absorbing cotton and the sound insulation cover are axially symmetrically arranged on the side of the dust removal box.

[0012] Beneficial effects

[0013] In the present invention, a soundproof cover, a first absorbing material, a second absorbing material, a third absorbing material and sound-absorbing cotton are adopted. The first absorbing material is used as the first layer, directly facing the noise source, and preliminarily scatters and absorbs sound wave energy through its wave shape and internal porous structure, better handles medium and low frequency sound waves, and reduces the direct propagation of noise. The second absorbing material is used as the second layer, further guides the sound waves into its internal space, and consumes the sound wave energy by the resonance principle. The clever design of its arc direction helps to focus the sound waves inside the structure, improve the sound absorption effect, and further consume the medium frequency sound waves. The third absorbing material is used as the second layer. As the third layer, its convex arc shape helps to reflect the remaining sound waves back into the system or scatter them away from the receiving point. At the same time, its special material can optimize the absorption of high-frequency sound waves to reduce the sharp parts of the noise. Finally, sound-absorbing cotton and sound insulation cover are used as the final noise reduction guarantee. By setting different types of sound-absorbing structures layer by layer, the energy of the noise can be gradually reduced, and the noise level that finally reaches the receiving point can be significantly reduced, ensuring that the noise level that finally reaches the receiving point remains at a level that is comfortable for the human ear, and ensuring that the living environment of the residential buildings and passers-by on both sides of the dust removal system is not disturbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an axonometric view of the present utility model;

[0015] Figure 2 It is a three-dimensional diagram of the utility model;

[0016] Figure 3This is a disassembled diagram of the first absorbing material, the second absorbing material, and the third absorbing material of the present invention;

[0017] Figure 4 This is a top sectional view of the dust removal box and the sound insulation cover of the present invention.

[0018] Legend:

[0019] 1. Dust removal box; 2. Exhaust duct; 3. Support legs; 4. Sound insulation cover; 5. Mounting bolts; 6. Dust collection duct; 7. Feed hopper; 8. Mounting holes; 9. First absorbing material; 10. Second absorbing material; 11. Third absorbing material; 12. Sound-absorbing cotton; 13. Connecting plate; 14. Fan. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0021] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment one:

[0023] Reference Figure 1-4 , a noise reduction and silencing device in a dust removal system of a raw material field, including a dust collection box 1, which serves as the core container of the entire dust collection system and is used to collect and process the dust-laden gas sucked in by the dust suction pipe 6. A dust suction pipe 6 is provided on the side of the dust collection box 1, connecting the dust collection box 1 with the area requiring dust removal, and introducing the dust-laden gas into the dust collection box 1. An exhaust pipe 2 is provided on the side of the dust collection box 1, and the clean gas after dust removal treatment is discharged from the dust collection box 1. A fan 14 is provided inside the dust collection box 1 to provide power for the dust removal system and drive the gas to flow in the dust suction pipe 6, the dust collection box 1 and the exhaust pipe 2. A feeding hopper 7 is provided at the bottom of the dust collection box 1 to collect solid particles or dust separated during the dust removal process. A supporting leg 3 is provided at the bottom of the dust collection box 1.

[0024] A soundproof cover 4 is provided on the side of the dust removal box 1, and the soundproof cover 4 can reduce the noise from propagating outward. A first absorbing material 9 is provided inside the soundproof cover 4. The first absorbing material 9 is in a wavy shape. The first absorbing material 9 is provided on one side of the dust removal box 1. The first absorbing material 9 can effectively offset the noise through its wavy shape. At the same time, the first absorbing material 9 is a porous material, such as foam plastic, glass wool or rock mineral wool. These materials have a large number of tiny pores inside, which can effectively absorb and scatter sound wave energy and have good medium and low frequency sound absorption capabilities. The inside of the soundproof cover 4 A second absorbing material 10 is provided. The second absorbing material 10 is a resonant material, such as a diaphragm, a thin plate, etc. These materials will resonate at a specific frequency, thereby consuming the energy of the sound wave. The second absorbing material 10 further processes the level of noise and can be optimized for mid-frequency sound waves. At the same time, the clever design of its arc direction helps to focus the sound waves inside the structure and improve the sound absorption effect. The interior of the soundproof cover 4 is provided with a third absorbing material 11. The third absorbing material 11 is a high-frequency sound-absorbing material, such as metal fiber, ceramic fiber, etc. These materials have good absorption properties for high-frequency sound waves. The sound absorbing material 12 is a kind of sound absorbing material with a special material structure, which has a good sound absorption effect. At the same time, its special material can optimize the absorption of high-frequency sound waves to reduce the sharp part of the noise. The second absorbing material 10 is arranged between the first absorbing material 9 and the third absorbing material 11. The third absorbing material 11 is arranged on one side of the sound absorbing cotton 12. The shapes of the second absorbing material 10 and the third absorbing material 11 are both arc-shaped, and the shapes of the second absorbing material 10 and the third absorbing material 11 are opposite. The interior of the soundproof cover 4 is provided with sound absorbing cotton 12. The sound absorbing cotton 12 serves as the final noise reduction layer to absorb and convert the remaining sound wave energy into heat energy to ensure that it reaches the receiver. The noise at this point is within the comfortable range of human ears. The sound-absorbing cotton 12 is connected to the sound insulation cover 4 by gluing. The first absorbing material 9, the second absorbing material 10, the third absorbing material 11, the sound-absorbing cotton 12 and the sound insulation cover 4 are axially symmetrically arranged on the side of the dust removal box 1. The first absorbing material 9, the second absorbing material 10 and the third absorbing material 11 are provided with connecting plates 13 on both sides. The surfaces of the sound insulation cover 4 and the connecting plates 13 are provided with mounting holes 8. The surface of the mounting hole 8 is provided with mounting bolts 5. The sound insulation cover 4, the connecting plates 13 and the various absorbing materials and other components are fixed together by the mounting bolts 5.

[0025] Turn on the fan 14, which provides power for the entire dust removal system, and drives the dust-laden gas into the dust removal box 1 through the dust suction pipe 6. After the dust-laden gas enters the dust removal box 1, the solid particles or dust are separated from the clean gas through the filtering or separation mechanism inside the dust removal box 1, such as bag dust removal, electrostatic dust removal, etc. The separated dust is collected through the feed hopper 7 for subsequent treatment or recycling, and the clean gas is discharged from the dust removal box 1 through the exhaust pipe 2 and enters the atmosphere or is further processed. In the dust removal process, the first absorbing material 9 serves as the first layer, directly facing the noise source, and preliminarily scatters and absorbs the sound wave energy through its wavy shape and internal porous structure, so as to better process the medium and low frequency sound waves and reduce the direct propagation of the noise. The second absorbing material 10 serves as the second layer, further guiding the sound waves into its internal space, utilizing The resonance principle is used to consume sound wave energy. The clever design of its arc direction helps to focus the sound waves inside the structure, improve the sound absorption effect, and further consume mid-frequency sound waves. The third absorbing material 11 serves as the third layer. Its convex arc shape helps to reflect the remaining sound waves back into the system or scatter them in a direction away from the receiving point. At the same time, its special material can optimize the absorption of high-frequency sound waves to reduce the sharp parts of the noise. Finally, the sound-absorbing cotton 12 and the soundproof cover 4 are used as the final noise reduction guarantee. By arranging different types of sound-absorbing structures layer by layer, the energy of the noise can be gradually reduced, so that the noise level that finally reaches the receiving point is significantly reduced, ensuring that the noise level that finally reaches the receiving point remains at a level that is comfortable for the human ear, and ensuring that the living environment of the residential buildings and passers-by on both sides of the dust removal system is not disturbed. Specific embodiment two:

[0027] On the premise of meeting the above structure, through the ingenious arrangement of the mounting bolt 5, the mounting hole 8 and the connecting plate 13, the operator can easily and conveniently replace or adjust the internal absorbing material to meet the noise absorption requirements of different frequency wavelengths. Whether it is the optimization of low-frequency, medium-frequency or high-frequency noise, it can be achieved through simple disassembly and installation operations, thereby greatly improving the adaptability and noise reduction effect of the device and enhancing the practicality of the device.

[0028] In summary:

[0029] 1. Using the soundproof cover 4, the first absorbing material 9, the second absorbing material 10, the third absorbing material 11 and the sound-absorbing cotton 12, the first absorbing material 9 is used as the first layer, directly facing the noise source, and preliminarily scattering and absorbing the sound wave energy through its wave shape and internal porous structure, so as to better handle the low- and medium-frequency sound waves and reduce the direct propagation of noise. The second absorbing material 10 is used as the second layer to further guide the sound waves into its internal space and consume the sound wave energy by the resonance principle. The clever design of its arc direction helps to focus the sound waves inside the structure, improve the sound absorption effect, and further consume the medium-frequency sound waves. The third absorbing material Material 11 serves as the third layer, and its convex arc shape helps to reflect the remaining sound waves back into the system or scatter them in a direction away from the receiving point. At the same time, its special material can optimize the absorption of high-frequency sound waves to reduce the sharp parts of the noise. Finally, the sound-absorbing cotton 12 and the soundproof cover 4 are used as the final noise reduction guarantee. By setting different types of sound-absorbing structures layer by layer, the energy of the noise can be gradually reduced, and the noise level that finally reaches the receiving point can be significantly reduced, ensuring that the noise level that finally reaches the receiving point remains at a level that is comfortable for the human ear, and ensuring that the living environment of the residential buildings and passers-by on both sides of the dust removal system is not disturbed.

[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction and silencing device in a dust removal system of a raw material field, comprising a dust removal box (1), characterized in that: The dust removal box (1) is provided with a fan (14) inside, a sound insulation cover (4) is provided on the side of the dust removal box (1), a first absorbing material (9) is provided inside the sound insulation cover (4), a second absorbing material (10) is provided inside the sound insulation cover (4), a third absorbing material (11) is provided inside the sound insulation cover (4), and sound-absorbing cotton (12) is provided inside the sound insulation cover (4). Connecting plates (13) are provided on both sides of the first absorbing material (9), the second absorbing material (10) and the third absorbing material (11). A dust collection pipe (6) is provided on the side of the dust removal box (1), and an exhaust pipe (2) is provided on the side of the dust removal box (1).

2. The noise reduction and silencing device in a dust removal system of a raw material field according to claim 1, characterized in that: A feeding hopper (7) is provided at the bottom of the dust removal box (1), and a supporting leg (3) is provided at the bottom of the dust removal box (1).

3. The noise reduction and silencing device in a dust removal system of a raw material field according to claim 1, characterized in that: The surfaces of the soundproof cover (4) and the connecting plate (13) are both provided with mounting holes (8), and the surfaces of the mounting holes (8) are provided with mounting bolts (5).

4. The noise reduction and silencing device in a dust removal system of a raw material field according to claim 1, characterized in that: The first absorbing material (9) is arranged on one side of the dust removal box (1), the second absorbing material (10) is arranged between the first absorbing material (9) and the third absorbing material (11), and the third absorbing material (11) is arranged on one side of the sound-absorbing cotton (12).

5. The noise reduction and silencing device in a dust removal system of a raw material field according to claim 1, characterized in that: The first absorbing material (9) is wavy in shape, the second absorbing material (10) and the third absorbing material (11) are both arc-shaped, and the shapes of the second absorbing material (10) and the third absorbing material (11) are opposite.

6. The noise reduction and silencing device in a dust removal system of a raw material field according to claim 1, characterized in that: The sound-absorbing cotton (12) is connected to the sound insulation cover (4) by gluing, and the first absorbing material (9), the second absorbing material (10), the third absorbing material (11), the sound-absorbing cotton (12) and the sound insulation cover (4) are arranged on the side of the dust removal box (1) in an axisymmetric manner.

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