Noise reduction structure based on steel structure factory building and decoration method

Abstract

The invention relates to the technical field of sound insulation and noise reduction, in particular to a noise reduction structure based on a steel structure factory building and a decoration method. The building comprises a building main body and a sound insulation pasting device, the sound insulation pasting device is laid outside the building main body, a sound absorption pasting device is further laid in the building main body, a sound insulation screen and a mute room are arranged in the building main body, and an active noise reduction device and a noise monitoring system are installed in the building main body. The sound-insulation surface mount is used for blocking noise communication inside and outside the plant and is beneficial to reducing noise pollution of the plant to the surrounding environment, the sound-absorption surface mount is beneficial to reducing echoes of sound in the plant so as to reduce the noise intensity, and the sound-insulation screen is used for isolating high-noise equipment and further improving the noise removal effect in the plant; the mute room is convenient for workers in the plant to have a rest and make and receive calls, the active noise reduction device is used for eliminating noise in a fixed sound wave frequency range, communication is not interfered as much as possible while equipment noise is reduced, and the noise monitoring system is used for monitoring noise data in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of sound insulation and noise reduction, and in particular to a noise reduction structure and decoration method based on a steel structure factory building. Background Art

[0002] Steel structure workshops are widely used for their unique advantages such as comfort, wind resistance, speed, earthquake resistance, light weight, durability, energy saving, environmental protection, large development space, thermal insulation and long life. The construction of steel structure workshops takes a short time and the raw materials have high elasticity and can withstand large deformation. They are suitable for production and processing workshops of mechanical parts. However, steel structure workshops also have their fatal shortcomings. They have poor sound insulation and are prone to noise during collisions, which have a great impact on the health of people living or working in them and the residents living around them.

[0003] The main source of noise in steel structure workshops is that some main equipment generates relatively high noise. In addition, various other auxiliary equipment will also generate noise of varying degrees during operation. After the noise is formed, it will be transmitted outward through the wall sound permeability or ventilation vents, which will have a greater impact on the surrounding area of ​​the workshop. At the same time, due to the echo effect in the workshop, the volume and duration of the noise in the workshop will be further increased, which will cause hearing damage to the staff in the workshop and is prone to communication barriers and problems such as difficulty in hearing voice commands. Summary of the invention

[0004] In order to solve the problem of noise pollution in factory buildings, reduce noise leakage and the harm of noise in factory buildings to workers, the present invention provides a noise reduction structure and decoration method based on a steel structure factory building.

[0005] On the one hand, the present invention provides a noise reduction structure based on a steel structure factory building, which adopts the following technical solution: A noise reduction structure based on a steel structure factory building, comprising a building body and sound insulation patches, wherein the sound insulation patches are paved on the outside of the building body, and sound absorbing patches are also paved inside the building body, and gaps are formed between the sound insulation patches and the sound absorbing patches and the building body. A sound insulation screen and a quiet room are arranged in the building body, wherein the sound insulation screen is movably arranged on the ground in the building body, and the quiet room is composed of sound insulation screens spliced ​​together. An active noise reduction device and a noise monitoring system are installed in the building body, wherein the active noise reduction device offsets noise by generating reverse sound waves, and the noise monitoring system monitors noise data in the building body through a sound vibration sensor.

[0006] Sound insulation patches are used to block noise communication inside and outside the factory, which helps reduce the noise pollution of the factory to the surrounding environment. Sound-absorbing patches help reduce the echo of sound in the factory, thereby reducing the noise intensity. Sound insulation screens are used to isolate high-noise equipment and further improve the noise removal effect in the factory. Quiet rooms are convenient for factory workers to rest and make phone calls. Active noise reduction devices are used to eliminate noise in a fixed sound wave frequency range, reducing equipment noise while minimizing interference with communication. Noise monitoring systems are used to monitor noise data in real time.

[0007] Furthermore, the building body includes a building steel plate, which is installed at the outer position of the building body and serves as the wall of the building body. The building steel plate is supported by a building bracket, and a building steel tile is fixedly installed on the top of the building bracket. The bottom of the building body is paved with a base plate masonry layer.

[0008] Furthermore, the building support is composed of I-beams, the building steel plate is a double-layer structure and is respectively installed on both sides of the I-beam on the building support, the double-layer structure of the building steel plate is filled with fire-proof and heat-insulating materials, the building steel plate and the building steel tile are provided with door and window structures, the door and window structures are made of soundproof glass, and a ventilation structure is also installed in the building body, and the outer surface of the ventilation structure is wrapped with sound insulation cotton.

[0009] The double-layer structure of building steel plates effectively reduces vibration transmission. In addition to thermal insulation and fire prevention, fireproof and thermal insulation materials can also improve the sound insulation effect to a certain extent.

[0010] Furthermore, the sound insulation installation includes a sound insulation board, the outer surface of the sound insulation board is affixed with a waterproof membrane, the sound insulation board is assembled on the outside of the building body, the joints between two adjacent sound insulation boards are sealed and filled with sealing strips, and the sound insulation board is installed on the outer surface of the building body through a mounting frame.

[0011] Waterproof membranes are used to reduce rain damage to acoustic panels.

[0012] Furthermore, the sound-absorbing patch includes a sound-absorbing panel, which is attached to the inside of the building body by means of mounting adhesive. The sound-absorbing panels are installed in an arranged manner at intervals, and a sound-absorbing coating is also sprayed on the inside of the building body.

[0013] The sound-absorbing coating can cover the interior of the building more comprehensively, and the sound-absorbing panel uses the uneven surface structure to absorb sound and prevent sound rebound.

[0014] Furthermore, movable wheels are installed at the bottom of the sound insulation screen, and splicing buckles are installed at the sides of the sound insulation screen. The sound insulation screens are spliced ​​and combined with each other through splicing buckles and surround the factory equipment to form a sound insulation compartment. Monitoring equipment is installed in the soundproof room, and a shock-absorbing pad layer is laid on the ground of the main building. The factory equipment is installed and fixed on the ground of the main building through the shock-absorbing pad layer.

[0015] The mobile wheels make it easy to move and splice the soundproof screen at any time, and the silent room is helpful for protecting monitoring equipment.

[0016] Furthermore, the active noise reduction device is connected to a noise monitor, which is installed near the noise source in the building body. The noise monitoring system includes an infrasound monitoring system and an ultrasonic monitoring system, which are installed on the inner surface of the building body.

[0017] The sound waves detected by the noise monitor are fed back to the active noise reduction device. The infrasound monitoring system and the ultrasonic monitoring system are used to monitor ultrasound and infrasound in the factory to reduce the harm of infrasound and ultrasound to personnel.

[0018] On the other hand, the invention provides a method for decorating a steel structure factory building using the following technical solution: A decoration method based on a steel structure factory building includes the following decoration steps: To install the main building, first set up the building support on the foundation, then fix the building steel plate and building steel tile on the building support by bolts and welding, and finally test the noise data of the bare building main body; To install the sound insulation patch, first install the mounting frame on the outer surface of the installed building body, then install the sound insulation board on the mounting frame, reserve gaps between the sound insulation boards during installation, then install the sealing strips in the gaps between the sound insulation boards, and finally test the external noise data of the building body after the sound insulation board is installed; To install the sound-absorbing stickers, first spray the sound-absorbing coating on the inner surface of the installed building body, wait for the sound-absorbing coating to dry, then use the installation glue to stick the sound-absorbing board, and finally test the internal noise data of the building body after the sound-absorbing board is installed; Install the soundproof screen and the quiet room, transport the prefabricated soundproof screen to the main building, install the soundproof screen according to the installation situation of the plant equipment, use the soundproof screen to splice and install the quiet room on one side of the main building, then cap the quiet room, and finally test the sound insulation effect of the quiet room; Install active noise reduction devices and noise monitoring systems. Before installation, test the noise data of factory equipment in the main building. Then install noise monitors near the factory equipment and connect the noise monitors to the active noise reduction devices through control wires. Evenly distribute the infrasound monitoring system and ultrasonic monitoring system of the noise monitoring system in the main building.

[0019] The noise attenuation is tested immediately after installation to facilitate judgment of the noise reduction effect and thus guide modification of the construction plan.

[0020] Furthermore, when installing the building steel plate, installation positions for door and window structures and ventilation structure ducts are reserved, and then the door and window structures and ventilation structures are installed at the reserved positions. A base plate masonry layer is laid at the bottom of the building body, and after the base plate masonry layer hardens, a shock-absorbing cushion layer is laid according to the plant equipment installation plan. After the sound insulation board is installed, a waterproof membrane is pasted on the outer surface of the sound insulation board. When the sound insulation screen is installed and arranged, the sound insulation screen is pushed and slid along the ground using moving wheels. After the two sound insulation screens are docked, they are connected and fixed to each other through splicing buckles. After the silent room is installed, monitoring equipment is installed in the silent room, and the monitoring equipment is connected to the noise monitor, infrasound monitoring system and ultrasonic monitoring system through data cables.

[0021] Furthermore, after the installation of the sound insulation patch is completed, a noise source is placed inside the building body and noise data is detected outside the building body, and then a noise source is placed outside the building body and noise data is detected inside the building body. After the installation of the sound absorbing patch is completed, a noise source is placed inside the building body and then noise data is detected inside the building body.

[0022] In summary, the present invention has the following beneficial technical effects: 1. Sound insulation stickers are used to block noise communication inside and outside the factory, which is conducive to reducing the noise pollution of the factory to the surrounding environment. Sound-absorbing stickers are conducive to reducing the echo of sound in the factory, thereby reducing the noise intensity. Sound insulation screens are used to isolate high-noise equipment and further improve the noise removal effect in the factory. Quiet rooms are convenient for factory workers to rest and make phone calls. Active noise reduction devices are used to eliminate noise in a fixed sound wave frequency range, while reducing equipment noise as little as possible to interfere with communication. Noise monitoring systems are used to monitor noise data in real time.

[0023] 2. The double-layer structure of building steel plates effectively reduces vibration transmission. In addition to insulation and fire prevention, fireproof and thermal insulation materials can also improve the sound insulation effect to a certain extent. The waterproof membrane is used to reduce the damage of rain to the sound insulation board. The sound-absorbing coating can cover the interior of the building more comprehensively. The sound-absorbing board uses the uneven surface structure to achieve sound absorption and prevent sound rebound. The mobile wheels facilitate the movement and splicing of the sound insulation screen at any time. The silent room is conducive to protecting monitoring equipment. The sound waves detected by the noise monitor are fed back to the active noise reduction device. The infrasound monitoring system and the ultrasonic monitoring system are used to monitor ultrasound and infrasound in the factory to reduce the harm of infrasound and ultrasound to personnel.

[0024] 3. Test the noise attenuation after installation is completed to facilitate the judgment of the noise reduction effect and guide the modification of the construction plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the external structure of the construction plant of the present invention; Figure 2 for Figure 1 Schematic diagram from another perspective; Figure 3 This is a schematic diagram of the internal structure of the construction plant of the present invention after the roof is removed; Figure 4 This is a schematic diagram of the vertical cross-section structure of the factory building wall structure of the present invention; Figure 5 It is a schematic diagram of the sound insulation assembly structure of the present invention.

[0026] Description of reference numerals: 1. Building body, 11. Building steel plate, 12. Building support, 13. Building steel tile, 14. Bottom plate masonry layer, 15. Door and window structure, 16. Ventilation structure, 2. Sound insulation patch, 21. Sound insulation board, 22. Waterproof membrane, 23. Sealing strip, 24. Mounting frame, 3. Sound-absorbing patch, 31. Sound-absorbing board, 32. Mounting glue, 33. Sound-absorbing coating, 4. Sound insulation screen, 41. Moving wheel, 42. Splicing buckle, 5. Silent room, 51. Monitoring equipment, 6. Shock-absorbing cushion layer, 7. Active noise reduction device, 71. Noise monitor, 8. Noise monitoring system, 81. Infrasound monitoring system, 82. Ultrasonic monitoring system. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 5 The present invention is described in further detail. Example 1

[0028] The embodiment of the present invention discloses a noise reduction structure based on a steel structure factory building, referring to Figure 1-Figure 3 , comprising a building body 1 and a sound insulation patch 2, wherein the sound insulation patch 2 is paved on the outside of the building body 1, and a sound absorbing patch 3 is also paved inside the building body 1, and a gap is formed between the sound insulation patch 2 and the sound absorbing patch 3 and the building body 1; The sound-isolating patch 2 blocks sound penetration, and the sound-absorbing patch 3 reduces and disperses echoes; The main building 1 is provided with a soundproof screen 4 and a quiet room 5. The soundproof screen 4 is movably arranged on the ground in the main building 1, and the quiet room 5 is composed of the soundproof screens 4 spliced ​​together; Quiet Room 5 is a fully-inclusive structure; An active noise reduction device 7 and a noise monitoring system 8 are installed in the building body 1. The active noise reduction device 7 cancels noise by generating reverse sound waves, and the noise monitoring system 8 monitors noise data in the building body 1 through a sound vibration sensor. Example 2

[0029] On the basis of Example 1, add: Reference Figure 1-Figure 4The building body 1 includes a building steel plate 11, which is installed at the outer position of the building body 1 and serves as the wall of the building body 1. The building steel plate 11 is supported by a building bracket 12, and a building steel tile 13 is fixedly installed on the top of the building bracket 12. The bottom of the building body 1 is paved with a base plate masonry layer 14.

[0030] Reference Figure 1-Figure 4 The building support 12 is composed of I-beams, the building steel plate 11 is a double-layer structure and is respectively installed on both sides of the I-beam on the building support 12, and the double-layer structure of the building steel plate 11 is filled with fireproof and heat-insulating materials. The building steel plate 11 and the building steel tile 13 are provided with a door and window structure 15, and the door and window structure 15 is made of soundproof glass. A ventilation structure 16 is also installed in the building body 1, and the outer surface of the ventilation structure 16 is wrapped with soundproof cotton.

[0031] Reference Figure 4 and Figure 5 The sound insulation patch 2 includes a sound insulation board 21, and the outer surface of the sound insulation board 21 is affixed with a waterproof membrane 22. The sound insulation board 21 is assembled on the outside of the building body 1. The joints between two adjacent sound insulation boards 21 are sealed and filled by a sealing strip 23. The sound insulation board 21 is installed on the outer surface of the building body 1 through a mounting frame 24.

[0032] The sealing strip 23 is elastic and can withstand the extrusion caused by thermal expansion and contraction of the sound insulation board 21 .

[0033] Reference Figure 4 The sound absorbing patch 3 includes a sound absorbing panel 31, which is adhered to the inside of the building body 1 by means of a mounting adhesive 32. The sound absorbing panels 31 are installed in an alternate arrangement, and a sound absorbing coating 33 is also sprayed on the inside of the building body 1.

[0034] Reference Figure 3 The bottom of the soundproof screen 4 is equipped with moving wheels 41, and the sides of the soundproof screen 4 are equipped with splicing buckles 42. The soundproof screens 4 are spliced ​​and combined with each other through the splicing buckles 42 and surround the factory equipment to form a soundproof compartment. Monitoring equipment 51 is installed in the silent room 5. A shock-absorbing pad layer 6 is laid on the ground of the building main body 1, and the factory equipment is installed and fixed on the ground of the building main body 1 through the shock-absorbing pad layer 6.

[0035] Reference Figure 3 The active noise reduction device 7 is connected to a noise monitor 71, and the noise monitor 71 is installed near the noise source in the building body 1. The noise monitoring system 8 includes an infrasound monitoring system 81 and an ultrasonic monitoring system 82, and the infrasound monitoring system 81 and the ultrasonic monitoring system 82 are installed on the inner surface of the building body 1.

[0036] After the noise monitor 71 monitors the sound waves, it feeds back to the active noise reduction device 7, and the active noise reduction device 7 generates reverse sound waves to cancel the noise. The sound cancellation position is controlled by controlling the sound emission time of the active noise reduction device 7, and the frequency of the sound waves emitted by the active noise reduction device 7 is controlled to cancel the sound waves of special frequencies or retain the sound waves of special frequencies.

[0037] When the infrasound monitoring system 81 and the ultrasonic monitoring system 82 detect ultrasound and infrasound, they remind the personnel in the factory to pay attention to protection, so as to reduce the impact of ultrasound and infrasound on human health. Example 3

[0038] The embodiment of the present invention discloses a method for decorating a steel structure factory building, referring to Figure 1-Figure 5 , including the following decoration steps: To install the building main body 1, firstly, a building support 12 is set up on the foundation, and then the building steel plate 11 and the building steel tile 13 are fixed on the building support 12 by bolts and welding, and finally, the noise data of the bare building main body 1 is tested; To install the sound insulation patch 2, first install the mounting frame 24 on the outer surface of the installed building main body 1, then install the sound insulation board 21 on the mounting frame 24, reserve gaps between the sound insulation boards 21 during installation, then install the sealing strip 23 in the gaps between the sound insulation boards 21, and finally test the external noise data of the building main body 1 after installing the sound insulation board 21; To install the sound-absorbing patch 3, firstly, spray the sound-absorbing coating 33 on the inner surface of the installed building main body 1, wait for the sound-absorbing coating 33 to dry, then use the installation glue 32 to stick the sound-absorbing board 31, and finally test the internal noise data of the building main body 1 after the sound-absorbing board 31 is installed; Install the soundproof screen 4 and the quiet room 5, transport the prefabricated soundproof screen 4 into the main building 1, install the soundproof screen 4 according to the installation conditions of the plant equipment, use the soundproof screen 4 to splice and install the quiet room 5 on one side of the main building 1, then cap the quiet room 5, and finally test the sound insulation effect of the quiet room 5; Install the active noise reduction device 7 and the noise monitoring system 8. Before installation, test the noise data of the factory equipment in the building body 1. Then install the noise monitor 71 near the factory equipment. Connect the noise monitor 71 to the active noise reduction device 7 through the control wire. Evenly distribute the infrasound monitoring system 81 and the ultrasonic monitoring system 82 of the noise monitoring system 8 in the building body 1.

[0039] Reference Figure 1-Figure 5 When installing the building steel plate 11, a door and window structure 15 installation position and a ventilation structure 16 pipeline installation position are reserved, and then the door and window structure 15 and the ventilation structure 16 are installed at the reserved positions; The bottom of the building body 1 is paved with a bottom slab layer 14, and after the bottom slab layer 14 is hardened, a shock-absorbing cushion layer 6 is paved according to the plant equipment installation plan; After the sound insulation board 21 is installed, a waterproof membrane 22 is pasted on the outer surface of the sound insulation board 21; When the sound insulation screen 4 is installed and arranged, the sound insulation screen 4 is pushed to slide along the ground using the moving wheels 41, and two sound insulation screens 4 are connected and fixed to each other through the splicing buckles 42 after being butt-jointed; After the silent room 5 is installed, a monitoring device 51 is installed in the silent room 5 , and the monitoring device 51 is connected to the noise monitor 71 , the infrasound monitoring system 81 and the ultrasonic monitoring system 82 through data wires.

[0040] Reference Figure 1-Figure 5 After the sound insulation patch 2 is installed, a noise source is placed inside the building body 1 and noise data is detected outside the building body 1, and then a noise source is placed outside the building body 1 and noise data is detected inside the building body 1. After the sound absorption patch 3 is installed, a noise source is placed inside the building body 1 and then noise data is detected inside the building body 1.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise reduction structure based on a steel structure factory building, comprising a building body (1) and a sound insulation patch (2), characterized in that: The sound insulation patch (2) is paved on the outside of the building body (1), and the inside of the building body (1) is also paved with a sound absorption patch (3), and a gap is formed between the sound insulation patch (2) and the sound absorption patch (3) and the building body (1); A soundproof screen (4) and a quiet room (5) are arranged in the main building (1); the soundproof screen (4) is movably arranged on the ground in the main building (1); and the quiet room (5) is composed of the soundproof screen (4) spliced ​​together; An active noise reduction device (7) and a noise monitoring system (8) are installed in the building body (1); the active noise reduction device (7) cancels out noise by generating reverse sound waves; and the noise monitoring system (8) monitors noise data in the building body (1) through a sound vibration sensor.

2. The noise reduction structure based on a steel structure factory building according to claim 1 is characterized in that: The building body (1) comprises a building steel plate (11), wherein the building steel plate (11) is installed at a peripheral position of the building body (1) and serves as a wall of the building body (1), the building steel plate (11) is supported by a building bracket (12), a building steel tile (13) is fixedly installed on the top of the building bracket (12), and a base plate masonry layer (14) is laid on the bottom of the building body (1).

3. A noise reduction structure based on a steel structure factory building according to claim 2, characterized in that: The building support (12) is formed by splicing I-beams, the building steel plate (11) is a double-layer structure and is respectively installed on both sides of the I-beam on the building support (12), the double-layer structure of the building steel plate (11) is filled with fireproof and heat-insulating materials, the building steel plate (11) and the building steel tile (13) are provided with a door and window structure (15), the door and window structure (15) is made of soundproof glass, and a ventilation structure (16) is also installed in the building body (1), and the outer surface of the ventilation structure (16) is wrapped with soundproof cotton.

4. The noise reduction structure based on a steel structure factory building according to claim 1 is characterized in that: The sound insulation patch (2) comprises a sound insulation board (21), the outer surface of the sound insulation board (21) is affixed with a waterproof membrane (22), the sound insulation board (21) is assembled on the outside of the building body (1), the joints between two adjacent sound insulation boards (21) are sealed and filled by a sealing strip (23), and the sound insulation board (21) is installed on the outer surface of the building body (1) by means of a mounting frame (24).

5. The noise reduction structure based on a steel structure factory building according to claim 1 is characterized in that: The sound absorbing patch (3) comprises a sound absorbing panel (31), wherein the sound absorbing panel (31) is adhered to the inside of a building body (1) by means of a mounting adhesive (32), the sound absorbing panels (31) are installed in an arranged manner at intervals, and a sound absorbing coating (33) is also sprayed on the inside of the building body (1).

6. The noise reduction structure based on a steel structure factory building according to claim 1 is characterized in that: The bottom of the soundproof screen (4) is provided with a moving wheel (41), and the side of the soundproof screen (4) is provided with a splicing buckle (42). The soundproof screens (4) are spliced ​​and assembled with each other through the splicing buckles (42) and surround the factory equipment to form a soundproof compartment. The silent room (5) is provided with a monitoring device (51). A shock-absorbing cushion layer (6) is laid on the floor of the building body (1), and the factory equipment is installed and fixed on the floor of the building body (1) through the shock-absorbing cushion layer (6).

7. The noise reduction structure based on a steel structure factory building according to claim 1 is characterized in that: The active noise reduction device (7) is connected to a noise monitor (71), and the noise monitor (71) is installed near a noise source in the building body (1). The noise monitoring system (8) comprises an infrasound monitoring system (81) and an ultrasonic monitoring system (82), and the infrasound monitoring system (81) and the ultrasonic monitoring system (82) are installed on the inner surface of the building body (1).

8. A method for decoration of a steel structure factory building, applied to a noise reduction structure based on a steel structure factory building, characterized in that: The renovation steps include: Installing the building main body (1), firstly setting up a building support (12) on the foundation, then fixing the building steel plate (11) and the building steel tile (13) on the building support (12) by bolts and welding, and finally testing the noise data of the bare building main body (1); Installing the sound insulation patch (2), firstly installing a mounting frame (24) on the outer surface of the installed building main body (1), then installing the sound insulation board (21) on the mounting frame (24), leaving gaps between the sound insulation boards (21) during installation, then installing a sealing strip (23) in the gaps between the sound insulation boards (21), and finally testing the external noise data of the building main body (1) after the sound insulation board (21) is installed; Installing the sound-absorbing patch (3), first spraying the sound-absorbing coating (33) on the inner surface of the installed building body (1), waiting for the sound-absorbing coating (33) to dry and harden, and then using the installation glue (32) to stick the sound-absorbing board (31), and finally testing the internal noise data of the building body (1) after the sound-absorbing board (31) is installed; Installing the soundproof screen (4) and the quiet room (5), transporting the prefabricated soundproof screen (4) into the main building (1), installing the soundproof screen (4) according to the installation conditions of the plant equipment, using the soundproof screen (4) to splice and install the quiet room (5) on one side of the main building (1), then capping the quiet room (5), and finally testing the soundproofing effect of the quiet room (5); An active noise reduction device (7) and a noise monitoring system (8) are installed. Before installation, the noise data of the plant equipment in the main building (1) is tested. Then, a noise monitor (71) is installed near the plant equipment. The noise monitor (71) is connected to the active noise reduction device (7) via a control wire. The infrasound monitoring system (81) and the ultrasonic monitoring system (82) of the noise monitoring system (8) are evenly distributed and installed in the main building (1).

9. A method for decorating a steel structure factory building according to claim 8, characterized in that: When installing the building steel plate (11), a position for installing the door and window structure (15) and a position for installing the ventilation structure (16) are reserved, and then the door and window structure (15) and the ventilation structure (16) are installed at the reserved positions; A base plate masonry layer (14) is laid at the bottom of the building body (1), and after the base plate masonry layer (14) hardens, a shock-absorbing cushion layer (6) is laid according to the plant equipment installation plan; After the sound insulation board (21) is installed, a waterproof membrane (22) is attached to the outer surface of the sound insulation board (21); When the sound insulation screen (4) is installed and arranged, the sound insulation screen (4) is pushed to slide along the ground using the moving wheels (41), and two sound insulation screens (4) are butt-jointed and fixed to each other via the splicing buckles (42); After the silent room (5) is installed, a monitoring device (51) is installed in the silent room (5), and the monitoring device (51) is connected to the noise monitor (71), the infrasound monitoring system (81) and the ultrasonic monitoring system (82) via data wires.

10. A method for decorating a steel structure factory building according to claim 8, characterized in that: After the sound insulation patch (2) is installed, a noise source is placed inside the building body (1) and noise data is detected outside the building body (1), and then a noise source is placed outside the building body (1) and noise data is detected inside the building body (1). After the sound absorption patch (3) is installed, a noise source is placed inside the building body (1) and then noise data is detected inside the building body (1).

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