Energy-absorbing, noise-reducing and noise-reducing anti-explosion room

Abstract

The utility model discloses an energy absorption, noise reduction and noise reduction anti-explosion room which comprises an anti-explosion room body, an explosion venting opening is formed in the wall of one side of the anti-explosion room body, the wall of the anti-explosion room body comprises an outer side steel net frame, and a steel plate is fixed to the outer side wall of the outer side steel net frame; the inner side steel net frame is connected with the outer side steel net frame through a plurality of connecting beams, meshes of the inner side steel net frame are filled with a first buffering and silencing layer, a first filling space is formed between the inner side steel net frame and the outer side steel net frame, and the first filling space is filled with a first buffering layer; and the first anti-seismic cement mortar layer is smeared on the inner side of the inner side steel net frame. The anti-explosion room has good anti-explosion, energy-absorbing and noise-reducing performance, and has a relatively strong prevention effect on sympathetic detonation or secondary damage caused by explosion in the production of fireworks and crackers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the fireworks and firecrackers safety technical field, more particularly to a kind of energy-absorbing, sound-absorbing, noise-reducing blast-resistant room. BACKGROUND

[0002] With the development of economy and society, people's requirements for fireworks and firecrackers are higher and higher in festive or major holidays and activities, while the safety technical conditions of fireworks and firecrackers production field are backward, and accidents occur frequently in the production process of fireworks and firecrackers, which can easily cause major accidents and secondary injuries, as well as psychological panic effect. At the same time, people's safety awareness is getting higher and higher, and the safety supervisory department pays more and more attention to the production safety of fireworks and firecrackers. It is very important to gradually implement mechanization and do well in safety measures in the production process of fireworks and firecrackers.

[0003] And the blast-resistant room is an important measure to prevent secondary injury and sympathetic detonation caused by accidents during the production of fireworks and firecrackers. According to the safety specification for fireworks and firecrackers engineering design, the walls and roof of the blast-resistant room should be made of cast-in-place reinforced concrete structure. When the design charge is not greater than 1 kg, the walls and roof of the blast-resistant room can be made of steel plate or combined steel plate structure. In actual production, the blast-resistant room in this industry is designed using cast-in-place reinforced concrete structure. For example, the existing technology patent No. 200710178967.9, named blast-resistant room, is designed to contain left and right blast-resistant walls, front and back blast-resistant walls and roof, and each part of the structure is cast-in-place reinforced concrete structure. Patent No. 201220290885.X, named blast-resistant room, is designed to contain left, right, back and top blast-resistant walls and front blast-resistant wall in one direction, and each blast-resistant wall is designed as a steel-soil composite structure, that is, the outer and inner sides of the wall are made of steel plate, and the soil is filled between the two steel plates.

[0004] However, although the cast-in-place reinforced concrete blast-resistant room can have a certain blast-resistant effect, it has no recycling value and no sound-absorbing function. The blast-resistant room with steel plates inside and outside and filled with soil has good blast-resistant performance, the steel plate has recycling value, and the "soil" as a filling material is easy to obtain, but this blast-resistant room also has no sound-absorbing function. Therefore, the existing blast-resistant room has no sound-absorbing and noise-reducing function, which can easily cause panic due to loud explosion sound.

[0005] Therefore, how to provide a blast-resistant room with energy absorption, sound absorption and noise reduction is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENT

[0006] Therefore, the utility model provides a blast-resistant room with energy absorption, sound absorption and noise reduction.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An energy-absorbing, sound-absorbing, noise-reducing and explosion-proof room comprises an explosion-proof room body, one side wall of the explosion-proof room body is provided with an explosion vent, and the wall of the explosion-proof room body comprises:

[0009] An outer steel grid frame is fixed with a steel plate on the outer side wall thereof;

[0010] An inner steel grid frame is connected with the outer steel grid frame through a plurality of connecting beams, the grid holes of the inner steel grid frame are filled with a first buffer sound-absorbing layer, and the inner steel grid frame and the outer steel grid frame have a first filling space therebetween, and the first filling space is filled with a first buffer layer;

[0011] A first anti-seismic cement mortar layer is applied to the inner side of the inner steel grid frame.

[0012] Compared with the prior art, the explosion-proof room has the first buffer sound-absorbing layer and the first buffer layer built-in the wall of the explosion-proof room body, the double effects of the two can relieve and attenuate the explosion shock wave occurring in the production of fireworks and firecrackers, avoid the explosion shock wave from causing serious destructive effect on the explosion-proof room, and improve the service life of the explosion-proof room; and the first buffer sound-absorbing layer also has the sound-absorbing and noise-reducing functions, so that the explosion-proof room can absorb and reduce the explosion sound, and avoid the large-volume explosion sound from causing the psychological panic of the production personnel.

[0013] Therefore, the explosion-proof room has good explosion resistance, explosion venting (energy absorption) and sound-absorbing performance, and has a strong prevention effect on sympathetic detonation or secondary injury caused by explosion in the production of fireworks and firecrackers. Compared with the explosion-proof room of the cast-in-place reinforced concrete structure, the steel plate has the value of recycling, the explosion-proof room is convenient to disassemble, and has the sound-absorbing performance. Compared with the explosion-proof room of the prior art in which the inner and outer sides are both steel plates, the explosion-proof room can reduce the amount of steel plates, has the sound-absorbing performance, and can reduce the cost.

[0014] Further, a first reinforcing net for preventing the first buffer sound-absorbing layer from falling off is fixed on the side wall of the inner steel grid frame close to the first anti-seismic cement mortar layer.

[0015] The first buffer sound-absorbing layer is more stably embedded on the inner steel grid frame through the first reinforcing net, and is prevented from falling off during the installation of the explosion-proof room or the explosion of fireworks and firecrackers.

[0016] Further, the roof of the explosion-proof room body comprises:

[0017] A roof steel net rack is fixed at the top end of the inner steel net rack, a second buffer sound-absorbing layer is filled in the mesh of the roof steel net rack, and a second filling space is formed between the roof steel net rack and the outer steel net rack, and the second filling space is filled with a second buffer layer.

[0018] A second anti-seismic cement mortar layer is applied to the inner side of the roof steel net rack.

[0019] The beneficial effects of the above technical solution are that the roof of the anti-explosion room also has a second buffer sound-absorbing layer and a second buffer layer built-in, which can relieve and attenuate the explosion shock wave generated in the production of fireworks and firecrackers, avoid the explosion shock wave causing serious destructive damage to the anti-explosion room, and improve the service life of the anti-explosion room. The first buffer sound-absorbing layer also has sound-absorbing and noise-reducing functions, so that the anti-explosion room can absorb and reduce the explosion sound, avoiding the loud explosion sound causing psychological panic of the production personnel. Therefore, the walls and roof of the anti-explosion room have good anti-explosion, energy absorption, and sound-absorbing performance. The overall performance of the anti-explosion room is improved.

[0020] Further, a second reinforcing net for preventing the second buffer sound-absorbing layer from falling off is fixed on the side wall of the roof steel net rack close to the second anti-seismic cement mortar layer.

[0021] The beneficial effects of the above technical solution are that the second buffer sound-absorbing layer can be more stably embedded on the roof steel net rack through the second reinforcing net, avoiding falling off during the installation of the anti-explosion room or during the explosion of fireworks and firecrackers.

[0022] Further, the roof steel net rack is a hemispherical rack structure, and the inner chamber roof wall surface of the anti-explosion room body is an inwardly recessed semicircular roof surface for attenuating explosion shock waves.

[0023] Further, the inner chamber wall surface of the anti-explosion room body is a circular-arc-shaped wall surface for attenuating explosion shock waves.

[0024] The beneficial effects of the above technical solution are that the circular-arc-shaped wall surface, the inwardly recessed semicircular roof surface, and the explosion shock wave front have the same shape, which has a good attenuating effect on the shock wave. During the explosion, the shock wave is avoided from being reflected to enhance its destructive power in the anti-explosion room.

[0025] Further, the first buffer sound-absorbing layer and the second buffer sound-absorbing layer are both rock wool or glass wool.

[0026] The beneficial effects of the above technical solution are that rock wool or glass wool has heat preservation and sound-absorbing functions, which can improve the heat preservation and sound-absorbing performance of the anti-explosion room.

[0027] Further, the first buffer layer and the second buffer layer are soil or sand or furnace slag.

[0028] The beneficial effects of the above technical solution are: these materials are not only easy to obtain, low cost, but also have soft characteristics, which can relieve and attenuate the explosion shock wave, and reduce the damage degree of the explosion-resistant room.

[0029] Further, the outer steel truss, the inner steel truss, the steel plate and the roof steel truss are coated with a corrosion-resistant layer.

[0030] The beneficial effects of the above technical solution are: improve the corrosion resistance of the anti-blast room steel truss, and prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0032] Figure 1 A three-dimensional structure schematic diagram of the energy-absorbing, sound-absorbing, noise-reducing and anti-blast room is provided.

[0033] Figure 2 For Figure 1 The cross-sectional schematic diagram of the anti-blast room body wall.

[0034] Figure 3 For Figure 1 The longitudinal cross-sectional schematic diagram of the anti-blast room body.

[0035] Figure 4 For Figure 3 The schematic diagram of the roof steel truss in the anti-blast room.

[0036] Figure 5 For Figure 4 The schematic diagram of the first reinforcing net and the second reinforcing net after hiding the first anti-seismic cement mortar layer and the second anti-seismic cement mortar layer.

[0037] Figure 6 For Figure 5 The schematic diagram of the first buffer sound-absorbing layer and the second buffer sound-absorbing layer embedded in the inner steel truss and the roof steel truss after hiding the first reinforcing net and the second reinforcing net. DETAILED DESCRIPTION

[0038] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the present utility model.

[0039] As shown in the figure, Figures 1-6 The utility model discloses an energy absorption, sound absorption, noise reduction and explosion -resistant room, including: the room body 1 of explosion -resistant room, the side wall of room body 1 has the explosion vent 101, and the wall body 11 of room body 1 includes:

[0040] The outer side steel net frame 111 is fixed with the steel plate 112 on the outer side wall of the outer side steel net frame 111;

[0041] The inner side steel net frame 113 is connected with the outer side steel net frame 111 through a plurality of connecting beams 114, and the mesh hole of the inner side steel net frame 113 is filled with a first buffer sound absorption layer 115.

[0042] The first anti-seismic cement mortar layer 117 is coated on the inner side of the inner side steel net frame 113, and plays a waterproof and anticorrosive role.

[0043] In some embodiments, the inner side wall of the inner side steel net frame 113 close to the first anti-seismic cement mortar layer 117 is fixed with a first reinforcing net 118 for preventing the first buffer sound absorption layer 115 from falling off.

[0044] In the above-mentioned embodiments, the roof 12 of the room body 1 of explosion -resistant room includes:

[0045] The roof steel net frame 121 is fixed at the top end of the inner side steel net frame 113, the mesh hole of the roof steel net frame 121 is filled with a second buffer sound absorption layer 122, and the roof steel net frame 121 and the outer side steel net frame 111 have a second filling space, and the second filling space is filled with a second buffer layer 123.

[0046] The second anti-seismic cement mortar layer 124 is coated on the inner side of the roof steel net frame 121, and plays a waterproof and anticorrosive role.

[0047] The roof steel net frame 121 is fixed with a second reinforcing net 125 for preventing the second buffer sound absorption layer 122 from falling off on the side wall close to the second anti-seismic cement mortar layer 124.

[0048] The roof steel net rack 121 is a hemispherical rack body structure, and the inner chamber roof wall surface of the anti-explosion room body 1 is an inner concave semicircular roof surface 102 for attenuating the explosion shock wave.

[0049] The first and second buffer sound-absorbing layers 115 and 122 are both rock wool or glass wool.

[0050] The first and second buffer layers 116 and 123 are both soil or sand or furnace slag.

[0051] The first and second reinforcing nets 118 and 125 can both be wire meshes.

[0052] The outer side steel net rack 111, the inner side steel net rack 113, the steel plate 112 and the roof steel net rack 121 are all coated with an anti-corrosion layer, such as an asphalt paint layer.

[0053] In another embodiment, a third buffer sound-absorbing layer is further reinforced by a wire mesh between the inner side steel net rack 113 and the first buffer layer 116, and a fourth buffer sound-absorbing layer is further reinforced by a wire mesh between the first reinforcing net 118 and the first anti-seismic cement mortar layer 117. In this way, the outer side third buffer sound-absorbing layer can support and block the first buffer layer such as soil, avoid the first buffer sound-absorbing layer from falling off due to bearing a large soil pressure, and avoid the soil from leaking through the gaps due to the imperfect sealing of the mesh holes of the inner side steel net rack; and the inner side fourth buffer sound-absorbing layer can further play a buffering and sound-absorbing role. Therefore, in this embodiment, three buffer sound-absorbing layers are arranged, which can greatly improve the energy absorption and sound-absorbing capacity of the anti-explosion room.

[0054] Of course, in other embodiments, the roof of the anti-explosion room can also be provided with three buffer sound-absorbing layers like the wall.

[0055] The wall of the anti-explosion room of the utility model is a mixed structure of steel, soil and rock wool. In the process of producing fireworks and firecrackers, the soil and rock wool have a buffering capacity and a good attenuating effect on the shock wave, and the rock wool has a sound-absorbing effect. In addition, the roof of the anti-explosion room is filled with soil instead of being sealed by a steel plate. In this way, when an explosion occurs, the roof in the direction of the explosion can also have a certain explosion relief capacity in addition to the explosion relief port. The anti-explosion room has a simple structure and low manufacturing cost, has a strong anti-explosion performance, and is conducive to wide promotion. The circular arc wall surface, the inner concave semicircular roof surface and the explosion shock wave front have the same shape, have a good attenuating effect on the shock wave, and avoid the reflection of the shock wave in the anti-explosion room to enhance the destructive power of the shock wave when an explosion occurs. Therefore, the anti-explosion room has a strong anti-explosion, explosion relief and sound-absorbing capacity, and has a strong inhibitory effect on sympathetic detonation or secondary injury caused by an explosion or psychological panic caused by the explosion sound in the process of producing fireworks and firecrackers.

[0056] The explosion resistance room performance test of the utility model:

[0057] Place: Licun Demao Flower Cannon Group Co., Ltd.

[0058] Total drug amount: 5000g

[0059] It needs to be explained that according to the production process, the maximum drug amount in the explosion resistance room is 2960g (3184g), wherein the upper drug is 1964g (6 discs of two kick feet upper drug total amount + 500g), and the lower drug is 976g (1220g) (6 discs of two kick feet lower drug total amount), that is, the test drug amount is nearly 2000g more than the drug amount in the actual production of the explosion resistance room, so as to ensure that the explosion resistance room meets the actual production needs. The thickness of the steel plate 112 is 15-20mm (the test is 17.6mm), and the total thickness of the wall body is 120-200mm (the test is 132mm),

[0060] After the test, part of the cement mortar in the inner side wall of the explosion resistance room falls off, there are slight cracks in the inner side wall body, and the production equipment is locally slightly deformed. The dry grass on the outer side of the explosion resistance room front explosion vent direction embankment slope inclines outward and is not ignited, and the 500g bare drug 7m away from the explosion resistance room is not detonated. The top of the explosion resistance room has slight subsidence and landslide of the furnace ash, and the personnel 50-70m away from the explosion resistance room do not feel the intense sound. The images of the front camera equipment (about 15m away from the explosion resistance room) and the lateral camera equipment (about 5m away) do not appear the shaking effect, and the outer side steel plate of the explosion resistance room does not appear the point drop deformation.

[0061] The test phenomenon proves that the explosion resistance room can play a good role in buffering, energy absorption, sound absorption and explosion resistance, achieves the initial design purpose of the explosion resistance room, and the test effect is ideal. At the same time, the explosion resistance room has simple structure, low manufacturing cost and recycling value, and is conducive to wide promotion.

[0062] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts of each embodiment can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0063] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications of the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy-absorbing, sound-damping, noise-reducing blast shelter, characterized in that, The utility model relates to an explosion-proof room body (1), one side wall of the explosion-proof room body (1) has a blast vent (101), the wall body (11) of the explosion-proof room body (1) includes: An outer steel grid (111) is fixed with a steel plate (112) on the outer side wall of the outer steel grid (111); An inner steel grid (113) is connected with the outer steel grid (111) through a plurality of connecting beams (114), the mesh of the inner steel grid (113) is filled with a first buffer sound-absorbing layer (115), the inner steel grid (113) and the outer steel grid (111) have a first filling space, and the first filling space is filled with a first buffer layer (116); A first anti-seismic cement mortar layer (117) is applied to the inner side of the inner steel grid (113). A first reinforcing net (118) for preventing the first buffer sound-absorbing layer (115) from falling off is fixed on the side wall of the inner steel grid (113) close to the first anti-seismic cement mortar layer (117).

2. The energy-absorbing, sound-absorbing, noise-reducing, blast-resistant room of claim 1, wherein, The roof (12) of the explosion-proof room body (1) includes:

3. The energy-absorbing, sound-absorbing, noise-reducing and blast-resistant chamber according to claim 1 or 2, characterized in that A roof steel grid (121) is fixed at the top end of the inner steel grid (113), the mesh of the roof steel grid (121) is filled with a second buffer sound-absorbing layer (122), the roof steel grid (121) and the outer steel grid (111) have a second filling space, and the second filling space is filled with a second buffer layer (123); A second anti-seismic cement mortar layer (124) is applied to the inner side of the roof steel grid (121). A second reinforcing net (125) for preventing the second buffer sound-absorbing layer (122) from falling off is fixed on the side wall of the roof steel grid (121) close to the second anti-seismic cement mortar layer (124).

4. The energy-absorbing, sound-absorbing, noise-reducing, blast-resistant room of claim 3, wherein, The roof steel grid (121) is a hemispherical frame structure, and the inner chamber roof wall surface of the explosion-proof room body (1) is an inwardly recessed semicircular roof surface (102) for attenuating explosion shock waves.

5. The blast-resistant room of claim 3, wherein, The inner chamber wall surface of the explosion-proof room body (1) is a circular-arc-shaped wall surface (103) for attenuating explosion shock waves.

6. The energy-absorbing, sound-absorbing, noise-reducing, blast-resistant chamber of claim 1 or 2 or 4 or 5, wherein, The first buffer sound-absorbing layer (115) and the second buffer sound-absorbing layer (122) are both rock wool or glass wool.

7. The blast-resistant room of claim 3, wherein, The first buffer layer (116) and the second buffer layer (123) are both soil, sand or furnace slag.

8. The blast-resistant room of claim 3, wherein, The outer steel grid (111), the inner steel grid (113), the steel plate (112) and the roof steel grid (121) are coated with an anticorrosive layer.

9. The blast-resistant room of claim 3, wherein, ​

Images