CN107956400A - A kind of substation's light sound-insulation folding door - Google Patents

Abstract

The invention discloses a kind of substation's light sound-insulation folding door, including upper rail, lower guideway and at least two door frames, light sound-insulation curtain face is embedded with each door frame, two neighboring door frame is connected through the hinge, upper rail and the lower guideway setting symmetrical above and below, along the direction of extension of door frame, the top of first door frame is equipped with upper shaft, bottom is correspondingly provided with lower rotary shaft, and the upper shaft and lower rotary shaft are installed in upper rail and lower guideway respectively；In remaining door frame, upper block and lower tumbler are respectively equipped with the top and bottom of each door frame, and the upper block and lower tumbler are corresponded to and be installed in upper rail and lower guideway.The present invention uses light sound-insulation curtain face, and folding door is light-weight, sound insulation property is good；It can realize fast quick-detach, equipment power off time is greatly decreased；It is of low cost, there are good economic benefits.

Description

A Lightweight Soundproof Folding Door for a Substation

technical field

The invention relates to the technical field of environmental engineering, in particular to a lightweight sound-insulating folding door for a substation.

Background technique

With the development of social economy and the increase of urban population density, the noise pollution of substations has attracted more and more public attention. Noise reduction facilities such as sound barriers and sound insulation enclosures are the most commonly used and most effective technical means in noise pollution control. However, currently commonly used noise reduction devices such as sound barriers, sound insulation doors, and sound-absorbing modules have problems such as long power outage installation time and inconvenience in main equipment maintenance. Therefore, it is necessary to develop a sound insulation and absorption device that is lighter and more convenient to disassemble, so as to greatly reduce the power outage operation time and reduce the impact on the maintenance and maintenance of the main equipment.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a light-weight, sound-insulating folding door for a substation with light weight, good sound insulation performance, quick disassembly, low cost, and good economic benefits.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A lightweight sound-insulating folding door for a substation, comprising an upper guide rail, a lower guide rail and at least two door frames, each door frame is embedded with a light-weight sound-insulation curtain, and two adjacent door frames are connected by hinges. The upper guide rail and the lower guide rail are arranged symmetrically up and down. Along the extension direction of the door frame, the top of the first door frame is provided with an upper rotating shaft, and the bottom is correspondingly provided with a lower rotating shaft. The upper rotating shaft and the lower rotating shaft are respectively installed on the upper guide rail and the In the lower guide rail; in the remaining door frames, the top and bottom of each door frame are respectively provided with an upper guide wheel and a lower guide wheel, and the upper guide wheel and the lower guide wheel are correspondingly installed in the upper guide rail and the lower guide rail.

As a further improvement of the above technical solution:

The upper guide rail and the lower guide rail are fixedly arranged, the upper guide rail is provided with an upper inspection port through which the upper rotating shaft and the upper guide wheel can pass, and the lower guide rail is provided with a lower inspection port through which the lower rotating shaft and the lower guide wheel can pass. mouth.

Along the extending direction of the door frame, the upper rotating shaft and the lower rotating shaft are arranged at the end of the first door frame away from the next door frame.

Along the extension direction of the door frame, except for the first door frame, the upper guide wheel on the previous door frame is close to the upper guide wheel of the next door frame, and the lower guide wheel on the previous door frame is close to the Lower guide wheel.

The door frame is provided with reinforcement strips for reinforcing the lightweight sound insulation curtain.

The lightweight sound-insulating curtain surface includes a rubber-plastic sound-insulation core layer and a fireproof and waterproof surface layer arranged outside the rubber-plastic sound-insulation core layer.

The fireproof and waterproof surface layer is a glass fiber aluminum foil cloth surface layer.

The rubber-plastic sound-insulating core layer is a flexible sound-insulating material, and the flexible sound-insulating material includes the following components in parts by weight: 25-40 parts of rubber, 15-25 parts of plastic, 5-10 parts of reinforcing fiber, heavy powder 5-15 parts of body, 10-20 parts of plasticizer, 1-2 parts of heat stabilizer, 1-2 parts of accelerator, 1-2 parts of vulcanizing agent, and 1-2 parts of coupling agent.

As for the flexible sound insulation material, preferably, the reinforcing fiber is one or more of aluminum fiber, carbon fiber, polyester fiber and silicate fiber.

For the flexible sound insulation material, preferably, the heavy powder is one or more of ultrafine graphene powder, ultrafine aluminum oxide powder, and ultrafine metal powder; The particle size of the solid powder is 100nm-100μm.

Preferably, the flexible sound insulation material further includes: 1-2 parts of bactericide.

The flexible sound insulation material, preferably, the rubber is one or more of fluorine rubber, nitrile rubber, neoprene; the plastic is polycarbonate resin, polyvinyl chloride, polyethylene, polyvinyl chloride One or more of styrene, polypropylene, polyurethane.

The flexible sound insulation material, preferably, the plasticizer is one of dibutyl phthalate, dioctyl phthalate, and dioctyl adipate; the heat stabilizer is calcium One of zinc powder, organic tin, and organic antimony; the accelerator is dibenzothiazole disulfide, N-cyclohexyl-2-benzothiazole sulfenamide, tetramethylthiuram disulfide One; the vulcanizing agent is selected from one or more of sublimated sulfur, zinc oxide, magnesium oxide; the coupling agent is a chromium complex coupling agent, a silane coupling agent, a titanate coupling agent One of.

For the flexible sound-insulating material, preferably, the antibacterial agent is one of nano-silver, silver-loaded phosphate, and tetrachlorophthalonitrile.

The present invention also provides a method for preparing the above-mentioned flexible sound insulation material, comprising the following steps:

(1) Put the rubber, plastic, plasticizer and heat stabilizer in the open mixer at a temperature of 120°C to 180°C and a speed of 10 to 30r/min and mix for 1 to 5 minutes, then add reinforcing fibers, heavy quality powder and coupling agent, keep the temperature and rotation speed constant, knead for 2-10 minutes, cool to room temperature, and obtain the premix;

(2) Add accelerator and vulcanizing agent to the premix obtained in step (1), mix at 30-90°C for 2-10 minutes at a speed of 10-30r/min, leave it at room temperature for 12-36 hours, and Continue mixing for 2 to 10 minutes at a speed of 10 to 30 r/min, and finally put it on a flat vulcanizing machine for molding. The molding temperature is 120 to 180 ° C, the pressure is 5 to 15 MPa, and the time is 10 to 30 minutes. After cooling at room temperature, flexible insulation is obtained. sound material.

The preparation method of the flexible sound insulation material, preferably, in the step (2), further includes adding an antibacterial agent into the premix.

As a further improvement of the above technical solution:

The rubber-plastic sound-insulating core layer is a flame-retardant flexible sound-insulating material, and the flame-retardant flexible sound-insulating material includes the following components in parts by weight: 25-40 parts of halogen-free rubber, 15-25 parts of halogen-free plastic, reinforcing fiber 2-10 parts, heavy powder 5-15 parts, plasticizer 10-20 parts, flame retardant 5-10 parts, stabilizer 1-2 parts, accelerator 1-2 parts, vulcanizing agent 1-2 parts , and 1 to 2 parts of coupling agent.

In the flame-retardant flexible sound-insulating material, preferably, the reinforcing fibers are one or more of aluminum fibers, carbon fibers, polyester fibers, and silicate fibers.

The flame-retardant flexible sound-insulating material, preferably, the heavy powder is one or more of ultrafine graphene powder, ultrafine aluminum oxide powder, and ultrafine iron powder; The particle size of the heavy powder is 100nm-100μm.

The flame-retardant flexible sound-insulating material preferably further includes: 1-2 parts of bactericide.

For the flame-retardant flexible sound-insulating material, preferably, the halogen-free rubber is one or more of silicone rubber, butadiene rubber, and ethylene-propylene-diene rubber; the halogen-free plastic is polycarbonate, polyester One or more of propylene, polyethylene, polyurethane.

The flame-retardant flexible sound-insulating material, preferably, the plasticizer is one of dibutyl phthalate, dioctyl phthalate, and dioctyl adipate; the flame-retardant The stabilizer is one or more of aluminum hydroxide, magnesium hydroxide, and zinc borate; the stabilizer is one of calcium zinc powder, organic tin, and organic antimony; the accelerator is dibenzothiazole disulfide , one of N-cyclohexyl-2-benzothiazole sulfenamide, and tetramethylthiuram disulfide; the vulcanizing agent is one or more of sublimated sulfur, zinc oxide, and magnesium oxide; The coupling agent is one of chromium complex coupling agent, silane coupling agent and titanate coupling agent.

In the flame-retardant flexible sound-insulating material, preferably, the antibacterial agent is one of nano-silver, silver-loaded phosphate, and tetrachlorophthalonitrile.

The present invention also provides a method for preparing the above-mentioned flame-retardant flexible sound-insulating material, comprising the following steps:

(1) Put the halogen-free rubber, halogen-free plastic, plasticizer and stabilizer in the open mixer at a temperature of 120°C to 180°C and a speed of 10 to 30r/min and mix for 1 to 5 minutes, then add Reinforcing fiber, heavy powder, flame retardant and coupling agent, keep the temperature and rotation speed constant, knead for 2-10 minutes, cool to room temperature, and get the premix;

(2) Add accelerator and vulcanizing agent to the premix obtained in step (1), mix at 30-90°C for 2-10 minutes at a speed of 10-30r/min, leave it at room temperature for 12-36 hours, and Continue mixing for 2 to 10 minutes at a speed of 10 to 30 r/min, and finally put it on a flat vulcanizing machine for molding. The molding temperature is 120 to 180 ° C, the pressure is 5 to 15 MPa, and the time is 10 to 30 minutes. After cooling at room temperature, flexible insulation is obtained. sound material.

The preparation method of the flame-retardant flexible sound-insulating material, preferably, in the step (2), further includes adding an antibacterial agent into the premix.

The innovation of the present invention is:

The sound insulation of homogeneous materials obeys the "mass law", that is, the greater the density, the greater the sound insulation. The present invention is on the basis of nitrile rubber and polyvinyl chloride mixture, by adding reinforcing fiber (such as being aluminum fiber, carbon fiber, polyester fiber, silicate fiber etc.) and heavy powder (such as graphene, trioxide Two aluminum, iron powder, etc.), can not only increase the density of the material, but at the same time, the reinforcing fiber and ultrafine powder dispersed in the mixture can form multiple layers of acoustic reflection at different interfaces, which increases the consumption of acoustic energy, so it can effectively improve The sound insulation of the material breaks through the "mass law". At the same time, due to the addition of reinforcing fibers, the cross-linked network structure formed by the reinforcing fibers improves the compressive and tensile properties of the material.

Compared with the prior art, the present invention has the advantages of:

The lightweight sound-insulating folding door of the substation of the present invention adopts a light-weight sound-insulating curtain surface, the folding door is light in weight and has good sound insulation performance; it can realize quick disassembly and greatly reduce the power failure time of equipment; it is low in cost and has good economic benefits.

Further, the sound insulation curtain surface of the present invention adopts flexible sound insulation materials, uses rubber and plastic blends as composite matrix, uses fiber reinforcing agent and heavy powder as auxiliary fillers to improve sound energy consumption, and uses plasticizer, heat Stabilizers, accelerators, vulcanizing agents, coupling agents, and fungicides are the main additives. The formed flexible sound insulation material has the advantages of light weight, good sound insulation performance, and can be easily folded and rolled, especially suitable for The use environment that requires quick installation and disassembly; it also has the advantages of flame retardancy, good anti-aging performance, good compression and tensile performance.

Further, the sound insulation curtain surface of the present invention adopts flame retardant flexible sound insulation material, uses halogen-free rubber and plastic blend as composite matrix, uses fiber reinforcing agent and modifier as auxiliary filler, uses flame retardant, plasticizer , stabilizer, accelerator, vulcanizing agent, coupling agent, and fungicide are the main additives. The flame-retardant flexible sound-insulation material formed has the advantages of light weight, good sound insulation performance, and can be easily folded and rolled. There is no toxic black smoke after burning, and it is suitable for use environments that require quick installation and disassembly. It also has the advantages of flame retardancy, good anti-aging performance, good compression and tensile performance, etc.

Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

Each label in the figure means:

1. Upper guide rail; 11. Upper inspection port; 2. Lower guide rail; 21. Lower inspection port; 3. Door frame; 4. Lightweight soundproof curtain; 5. Hinge; 61. Upper shaft; 62. Lower shaft; 71, upper guide wheel; 72, lower guide wheel; 8, reinforcing bar.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

As shown in Figure 1, the lightweight sound-insulating folding door of the substation in this embodiment includes an upper guide rail 1, a lower guide rail 2 and at least two door frames 3, and each door frame 3 is embedded with a light-weight sound-insulating curtain surface 4 , two adjacent door frames 3 are connected by hinges 5, the upper guide rail 1 and the lower guide rail 2 are symmetrically arranged up and down, along the extension direction of the door frame 3, the top of the first door frame 3 is provided with an upper shaft 61, and the bottom is correspondingly provided with There is a lower rotating shaft 62, and the upper rotating shaft 61 and the lower rotating shaft 62 are installed in the upper guide rail 1 and the lower guide rail 2 respectively; in the remaining door frames 3, the top and bottom of each door frame 3 are respectively provided with upper guide wheels 71 and lower guide wheels. The guide wheel 72, and the upper guide wheel 71 and the lower guide wheel 72 are installed in the upper guide rail 1 and the lower guide rail 2 correspondingly.

In specific application examples, multiple door frames 3 can be provided. This embodiment takes two examples. When adopting light-weight sound insulation curtain surface 4, being encapsulated in inlaying in door frame 3, the weight of sound insulation door is also relatively light, can be easily installed on the guide rail. A sealed sound insulation surface is formed by the door frame frame 3, the upper guide rail 1 and the lower guide rail 2 inlaid with the lightweight sound insulation curtain surface 4. When installing, it is only necessary to install the upper guide rail 1 and the lower guide rail 2 first, and then each door frame 3, install the upper guide rail 1 and the lower guide rail 2, and finally install the hinge 5, so as to realize the quick installation of the soundproof folding door; and when disassembling, it is only necessary to remove the hinges 5 of each door frame 3, move out the guide rails one by one, and then install the upper The guide rail 1 and the lower guide rail 2 are removed, so that the sound insulation folding door can be quickly disassembled.

In this embodiment, the door frame 3 is provided with reinforcing strips 8 for reinforcing the lightweight sound insulation curtain 4 .

In this embodiment, the upper guide rail 1 and the lower guide rail 2 are fixedly arranged. The upper guide rail 1 is provided with an upper inspection port 11 for the upper shaft 61 and the upper guide wheel 71 to pass through. The lower inspection port 21 through which the guide wheel 72 passes. The door frame 3 is loaded and disassembled through the upper inspection port 11 and the lower inspection port 21 .

In this embodiment, along the extending direction of the door frame 3 , the upper rotating shaft 61 and the lower rotating shaft 62 are arranged at the end of the first door frame 3 away from the next door frame 3 . Except the first door frame 3, the upper guide wheel 71 on the previous door frame 3 is close to the upper guide wheel 71 of the next door frame 3, and the lower guide wheel 72 on the previous door frame 3 is close to the next door frame 3. Lower guide wheel 72. This ensures that the hinged door frame 3 can be folded and extended.

In this embodiment, the lightweight sound-insulating curtain surface 4 includes a rubber-plastic sound-insulating core layer and a fireproof and waterproof surface layer arranged outside the rubber-plastic sound-insulating core layer. The fireproof and waterproof surface layer is the surface layer of glass fiber aluminum foil cloth. The rubber and plastic sound insulation core layer is a flexible sound insulation material. This embodiment provides a kind of preparation method of flexible sound insulation material, comprises the following steps:

(1) Weigh raw materials according to the following weight ratio: 30 parts of nitrile rubber, 20 parts of polyvinyl chloride, 10 parts of carbon fiber, 15 parts of nano graphene powder (200nm), 15 parts of dioctyl adipate, calcium zinc 2 parts powder, 2 parts dibenzothiazole disulfide, 2 parts sublimated sulfur, 2 parts silane coupling agent (KH570), 2 parts nano silver.

(2) Pre-vulcanization treatment: Put nitrile rubber, polyvinyl chloride, dioctyl adipate, and calcium zinc powder into an open mill (at a temperature of 160°C and at a speed of 20r/min) and knead for 2 minutes, then add Carbon fiber, graphene nanometer and silane coupling agent, continue kneading 5min.

(3) Vulcanization treatment: After the mixture is cooled to room temperature, add sublimated sulfur, dibenzothiazole disulfide and nano-silver in the open mill (temperature 60°C, speed 20r/min) according to the corresponding proportion, and knead 5min; After standing at room temperature for 24h, knead in an open mill (room temperature, speed 20r/min) for 5min, and then place it on a flat vulcanizer (temperature 160°C, pressure 10MPa) for 15min.

(4) Post-vulcanization treatment: Take out the sample, cool it at room temperature for 24 hours, and finally cut the obtained flexible sound insulation sheet into required size for use.

The performance parameters are shown in Table 1 when the sample thickness is 1.5mm.

Table 1 The performance table of the flexible sound insulation material prepared in Example 1

Example 2:

This embodiment is basically the same as Embodiment 1, the difference only lies in:

This embodiment provides another preparation method of flexible sound insulation material, including the following steps:

(1) Take raw materials according to the following weight ratio: 35 parts of nitrile rubber, 20 parts of polyvinyl chloride, 5 parts of aluminum fiber, 15 parts of ultrafine metal iron powder (2um), 15 parts of dioctyl phthalate, 2 parts of organic antimony, 2 parts of dibenzothiazole disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570), 2 parts of nano silver.

(2) Pre-vulcanization treatment: first put nitrile rubber, polyvinyl chloride, dioctyl phthalate, and organic antimony into an open mixer (at a temperature of 160°C, at a speed of 20r/min) and knead for 2 minutes, then add Aluminum fiber, ultrafine metal iron powder and silane coupling agent, continue to knead for 5min.

(3) Vulcanization treatment: After the mixture is cooled to room temperature, add sublimated sulfur, dibenzothiazole disulfide and nano-silver in the open mill (temperature 60°C, speed 20r/min) according to the corresponding proportion, and knead 5min; After standing at room temperature for 24h, knead in an open mill (room temperature, speed 20r/min) for 5min, and then place it on a flat vulcanizer (temperature 160°C, pressure 10MPa) for 15min.

(4) Post-vulcanization treatment: Take out the sample, cool it at room temperature for 24 hours, and finally cut the obtained flexible sound insulation sheet into required size for use.

The performance parameters when the sample thickness is 1.0 mm are shown in Table 2.

Table 2 The performance table of the flexible sound insulation material prepared in Example 2

Example 3:

This embodiment is basically the same as Embodiment 1, the difference only lies in:

This embodiment provides the third preparation method of the flexible sound insulation material, including the following steps:

(1) Weigh raw materials according to the following weight ratio: 35 parts of nitrile rubber, 15 parts of polyurethane, 10 parts of aluminum fiber, 15 parts of nano graphene powder (200nm), 15 parts of dioctyl adipate, calcium zinc powder 2 parts, 2 parts of dibenzothiazole disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570), 2 parts of nano silver.

(2) Pre-vulcanization treatment: Put nitrile rubber, polyurethane, dioctyl adipate, and calcium-zinc powder into an open mill (at a temperature of 160°C and at a speed of 20r/min) and knead for 2 minutes, then add aluminum fiber , nano-graphene powder and silane coupling agent, continue to knead for 5min.

(3) Vulcanization treatment: After the mixture is cooled to room temperature, add sublimated sulfur, dibenzothiazole disulfide and nano-silver in the open mill (temperature 60°C, speed 20r/min) according to the corresponding proportion, and knead 5min; After standing at room temperature for 24h, knead in an open mill (room temperature, speed 20r/min) for 5min, and then place it on a flat vulcanizer (temperature 160°C, pressure 10MPa) for 15min.

(4) Post-vulcanization treatment: Take out the sample, cool it at room temperature for 24 hours, and finally cut the obtained flexible sound insulation sheet into required size for use.

When the sample size is 1.0mm, the performance parameters are shown in the table below.

Table 3 The performance table of the flexible sound insulation material prepared in Example 3

Example 4:

This embodiment is basically the same as Embodiment 1, the difference only lies in:

In this example, the rubber-plastic sound-insulating core layer is a flame-retardant flexible sound-insulating material. This example provides a preparation method of a flame-retardant flexible sound-insulating material, including the following steps:

(1) Weigh raw materials according to the following weight ratio: 30 parts of EPDM, 20 parts of polypropylene, 5 parts of carbon fiber, 15 parts of ultrafine metal iron powder (2 μm), 15 parts of dioctyl adipate, hydrogenated 5 parts of aluminum, 2 parts of calcium zinc powder, 2 parts of dibenzothiazole disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570), 2 parts of nano silver.

(2) Pre-vulcanization treatment: Put EPDM, polypropylene, dioctyl adipate, and calcium-zinc powder into an open mill (at a temperature of 160°C and at a speed of 20r/min) and knead for 2 minutes. Add carbon fiber, superfine metal iron powder, aluminum hydroxide and silane coupling agent (KH570), and continue kneading for 5 minutes.

(3) Vulcanization treatment: After the mixture is cooled to room temperature, add sublimated sulfur, dibenzothiazole disulfide and nano-silver in the open mill (temperature 60°C, speed 20r/min) according to the corresponding proportion, and knead 5min; After standing at room temperature for 24h, knead in an open mill (room temperature, speed 20r/min) for 5min, and then place it on a flat vulcanizer (temperature 160°C, pressure 10MPa) for 15min.

(4) Post-vulcanization treatment: take out the sample, cool it at room temperature for 24 hours, and finally cut the obtained sheet into the required size for use.

The performance parameters when the sample thickness is 1.5 mm are shown in Table 4.

Table 4 The performance table of the flame-retardant flexible sound-insulating material with a thickness of 1.5 mm prepared in Example 4

Example 5:

This embodiment is basically the same as Embodiment 4, the difference only lies in:

This embodiment provides the second preparation method of the flame-retardant flexible sound-insulating material, including the following steps:

(1) Weigh raw materials according to the following weight ratio: 35 parts of EPDM, 20 parts of polypropylene, 5 parts of aluminum fiber, 10 parts of ultrafine metal iron powder (2 μm), 15 parts of dioctyl phthalate, 5 parts of aluminum hydroxide, 2 parts of organic antimony, 2 parts of dibenzothiazole disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570), 2 parts of nano silver.

(2) Pre-vulcanization treatment: Put EPDM, polypropylene, dioctyl phthalate, and organic antimony into an open mixer (at a temperature of 160°C and at a speed of 20 r/min) and knead for 2 minutes, then add Aluminum fiber, superfine metal iron powder, aluminum hydroxide and silane coupling agent (KH570), continue kneading for 5 minutes.

(3) Vulcanization treatment: After the mixture is cooled to room temperature, add sublimated sulfur, dibenzothiazole disulfide and nano-silver in the open mill (temperature 60°C, speed 20r/min) according to the corresponding proportion, and knead 5min; After standing at room temperature for 24h, knead in an open mill (room temperature, speed 20r/min) for 5min, and then place it on a flat vulcanizer (temperature 160°C, pressure 10MPa) for 15min.

(4) Post-vulcanization treatment: Take out the sample, cool it at room temperature for 24 hours, and finally cut the obtained flexible sound insulation sheet into required size for use.

The performance parameters when the sample thickness is 1.0 mm are shown in Table 5.

Table 5 The performance table of the flame-retardant flexible sound-insulating material with a thickness of 1.0mm prepared in Example 5

Embodiment 6:

This embodiment is basically the same as Embodiment 4, the difference only lies in:

This example provides the third preparation method of the flame-retardant flexible sound-insulating material, which includes the following steps:

(1) Weigh raw materials according to the following weight ratio: 35 parts of butadiene rubber, 15 parts of polyurethane, 5 parts of aluminum fiber, 15 parts of ultrafine graphene powder (200nm), 15 parts of dioctyl adipate, zinc borate 5 parts, calcium zinc powder 2 parts, dibenzothiazole disulfide 2 parts, sublimated sulfur 2 parts, silane coupling agent (KH570) 2 parts, nano silver 2 parts.

(2) Pre-vulcanization treatment: Put butadiene rubber, polyurethane, dioctyl adipate, and calcium-zinc powder into an open mill (at a temperature of 160°C and at a speed of 20r/min) and knead for 2 minutes, then add aluminum fiber , ultrafine graphene powder and chromium complex coupling agent, continue to knead for 5min.

(3) Vulcanization treatment: After the mixture is cooled to room temperature, add sublimated sulfur, dibenzothiazole disulfide and nano-silver in the open mill (temperature 60°C, speed 20r/min) according to the corresponding proportion, and knead 5min; After standing at room temperature for 24h, knead in an open mill (room temperature, speed 20r/min) for 5min, and then place it on a flat vulcanizer (temperature 160°C, pressure 10MPa) for 15min.

(4) Post-vulcanization treatment: Take out the sample, cool it at room temperature for 24 hours, and finally cut the obtained flexible sound insulation sheet into required size for use.

The performance parameters when the sample thickness is 1.0 mm are shown in Table 6.

Table 6 The performance table of the flame-retardant flexible sound-insulating material with a thickness of 1.0 mm prepared in Example 6

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent implementation of equivalent changes example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A lightweight sound-insulating folding door for a substation, comprising an upper guide rail (1), a lower guide rail (2) and at least two door frames (3), each door frame (3) is embedded with a lightweight sound-insulation curtain surface (4), two adjacent door frames (3) are connected by hinges (5), the upper guide rail (1) and the lower guide rail (2) are symmetrically arranged up and down, along the extension direction of the door frame (3), the first The top of a door frame (3) is provided with an upper rotating shaft (61), and the bottom is correspondingly provided with a lower rotating shaft (62). The upper rotating shaft (61) and the lower rotating shaft (62) are respectively installed on the upper guide rail (1) and In the lower guide rail (2); in the remaining door frames (3), the top and bottom of each door frame (3) are respectively provided with an upper guide wheel (71) and a lower guide wheel (72), and the upper guide wheel (71) and lower guide wheel (72) are correspondingly installed in upper guide rail (1) and lower guide rail (2). 2. The light-weight sound-insulating folding door of a substation according to claim 1, characterized in that: the upper guide rail (1) and the lower guide rail (2) are fixedly arranged, and the upper guide rail (1) is provided with an upper rotating shaft (61) and the upper inspection port (11) that the upper guide wheel (71) passes through, and the lower guide rail (2) is provided with the lower inspection port (11) that can pass through the lower rotating shaft (62) and the lower guide wheel (72). twenty one). 3. The lightweight sound-insulating folding door of a substation according to claim 2, characterized in that: along the extension direction of the door frame (3), the upper rotating shaft (61) and the lower rotating shaft (62) are arranged on the first The door frame (3) is away from an end of the next door frame (3). 4. The lightweight sound-insulating folding door of a substation according to any one of claims 1 to 3, characterized in that: along the extension direction of the door frame (3), except for the first door frame (3), the previous one The upper guide wheel (71) on the door frame (3) is close to the upper guide wheel (71) of the next door frame (3), and the lower guide wheel (72) on the previous door frame (3) is close to the next door frame ( 3) the lower guide wheel (72). 5. The lightweight sound-insulating folding door of a substation according to any one of claims 1 to 3, characterized in that: the door frame (3) is provided with reinforcing strips for reinforcing the light-weight sound-insulating curtain surface (4) (8). 6. The light-weight sound-insulation folding door of a substation according to any one of claims 1-3, characterized in that: the light-weight sound-insulation curtain (4) comprises a rubber-plastic sound-insulation core layer and a rubber-plastic insulation layer A fire and waterproof finish on the outside of the acoustic core. 7. The lightweight sound-insulating folding door of a substation according to claim 6, wherein the rubber-plastic sound-insulating core layer is a flexible sound-insulating material, and the flexible sound-insulating material includes the following components by weight: rubber 25-40 parts, 15-25 parts of plastic, 5-10 parts of reinforcing fiber, 5-15 parts of heavy powder, 10-20 parts of plasticizer, 1-2 parts of heat stabilizer, 1-2 parts of accelerator, 1-2 parts of vulcanizing agent, and 1-2 parts of coupling agent. 8. The lightweight sound-insulating folding door of a substation according to claim 7, characterized in that: the reinforcing fiber is one or more of aluminum fiber, carbon fiber, polyester fiber, silicate fiber; the heavy The heavy powder is one or more of ultrafine graphene powder, ultrafine aluminum oxide powder, and ultrafine metal powder; the particle size of the heavy powder is 100nm-100μm. 9. The lightweight sound-insulating folding door of a substation according to claim 6, characterized in that: the rubber-plastic sound-insulating core layer is a flame-retardant flexible sound-insulating material, and the flame-retardant flexible sound-insulating material includes the following parts by weight Components: 25-40 parts of halogen-free rubber, 15-25 parts of halogen-free plastic, 2-10 parts of reinforcing fiber, 5-15 parts of heavy powder, 10-20 parts of plasticizer, 5-10 parts of flame retardant , 1-2 parts of stabilizer, 1-2 parts of accelerator, 1-2 parts of vulcanizing agent, and 1-2 parts of coupling agent. 10. The lightweight sound-insulating folding door of a substation according to claim 9, characterized in that: the reinforcing fibers are one or more of aluminum fibers, carbon fibers, polyester fibers, and silicate fibers; The heavy powder is one or more of ultrafine graphene powder, ultrafine aluminum oxide powder, and ultrafine iron powder; the particle size of the heavy powder is 100nm-100μm.