CN215810511U

CN215810511U - Explosion protection device

Info

Publication number: CN215810511U
Application number: CN202122320784.4U
Authority: CN
Inventors: 唐玉成; 张玉良; 张玉武
Original assignee: Hubei Yuhao Metal Composite Material Co ltd
Current assignee: Hubei Yuhao Metal Composite Material Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-11
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to the technical field of explosive welding, and provides an explosion protection device which is arranged at a gap of an explosion construction point and comprises: the protective wall is arranged at the top end of the base, and the base is buried in a foundation; the protecting wall comprises a sound absorption assembly and a supporting wall, wherein the sound absorption assembly is arranged on the explosion-facing surface of the supporting wall and is used for absorbing shock waves. In the embodiment, the protective wall is arranged at the top end of the base, and the base is embedded in the foundation, so that the protective wall is always kept in a vertical state, the stability of the protective wall is enhanced, and the protective wall is prevented from being pushed down by shock waves; according to the utility model, the sound-absorbing assembly is arranged on the explosion-facing surface of the support wall, so that the sound-absorbing assembly can effectively absorb the energy of shock waves, the impact force of the shock waves is weakened, and the propagation of the shock waves along the direction of the notch is blocked; the explosion protection device is simple in structure and good in protection effect, reduces the harm of explosion to the surroundings, is convenient to implement, and effectively improves the production efficiency.

Description

Explosion protection device

Technical Field

The utility model relates to the technical field of explosive welding, in particular to an explosion protection device.

Background

When blasting is carried out at present, because the explosion belongs to naked blasting, the explosion shock wave is directly propagated in the air, the harmful effect of the generated air shock wave is much larger than that of common underground blasting, and the blasting air shock wave is the most important blasting hazard. When the protection measures are not in place, the influence on surrounding buildings can be caused, and door and window deformation, glass breakage and the like can be generated in serious cases; when the air shock wave acts on a human body, adverse reactions of internal organs and brain of the human body are caused, and the life can be threatened when the adverse reactions are serious. Therefore, if the air shock wave is not controlled during the explosive welding, a safety accident may occur.

In the prior art, a basin which is far away from an urban area and surrounded by mountains is generally selected as an explosion welding field, and the surrounding mountains and trees are utilized to reduce air shock waves; or the warning range is enlarged, and the detonation is far away from an explosion field as far as possible; but when the explosion welding place road entry direction massif is lower, jaggedly, the influence of shock wave in this orientation can not be in small amount, and there are the problem that the protection degree of difficulty is big, the effect is poor, the safety risk is big and production efficiency is low in breach department.

SUMMERY OF THE UTILITY MODEL

The utility model provides an explosion protection device, which is used for solving the problems of high protection difficulty, poor effect, high safety risk and low production efficiency existing at a gap of an explosion construction point in the prior art.

The utility model provides an explosion protection device, which is arranged at a gap of an explosion construction point and comprises: the protective wall is arranged at the top end of the base, and the base is buried in a foundation; the protecting wall comprises a sound absorption assembly and a supporting wall, wherein the sound absorption assembly is arranged on the explosion-facing surface of the supporting wall and is used for absorbing shock waves.

The explosion protection device further comprises a metal frame, the sound absorption assembly comprises sound absorption cotton, the sound absorption cotton is arranged between the metal frame and the supporting wall, and the metal frame is used for fixing the sound absorption cotton.

According to the explosion protection device provided by the utility model, the metal frame is connected with the support wall through bolts.

According to the explosion protection device provided by the utility model, the size of the sound-absorbing cotton is matched with that of the support wall, and the thickness of the sound-absorbing cotton is more than or equal to 0.2 m.

According to the explosion protection device provided by the utility model, the thickness of the support wall is more than or equal to 0.4m, and the height of the support wall is more than or equal to 8 m.

According to the explosion protection device provided by the utility model, the thickness of the base is more than or equal to 5 times of the thickness of the supporting wall, and the depth of the base is more than or equal to half of the thickness of the base.

According to the explosion protection device provided by the utility model, the lower part of the protection wall is provided with the opening door, the explosion-facing side and/or the back explosion side of the opening door are/is correspondingly connected with the protection door, and the size of the protection door is larger than that of the opening door.

According to the explosion protection device provided by the utility model, at least one of the upper side and the lower side of the door or at least one of the left side and the right side of the door is provided with a slide rail, and the protection door is connected with the door in a sliding manner through the slide rail.

According to the explosion protection device provided by the utility model, the sliding rail is arranged along the width direction of the opening door, and the length of the sliding rail is more than or equal to 2 times of the width of the protection door; or the slide rail is arranged along the height direction of the door, and the length of the slide rail is more than or equal to 2 times of the height of the protective door.

According to the explosion protection device provided by the utility model, the base is a reinforced concrete base, and the support wall is a reinforced concrete support wall.

According to the explosion protection device provided by the utility model, the protection wall is arranged at the top end of the base, and the base is embedded in the foundation, so that the protection wall is always kept in a vertical state, the stability of the protection wall is enhanced, and the protection wall is prevented from being pushed down by shock waves; the sound absorption assembly is arranged on the explosion-facing surface of the support wall, so that the sound absorption assembly can effectively absorb the energy of shock waves, and the shock waves penetrating through the sound absorption assembly and entering the support wall can be reflected into the sound absorption assembly to be absorbed again, so that the impact force of the shock waves is weakened, and the propagation of the shock waves along the direction of the gap is blocked; the explosion protection device is simple in structure and good in protection effect, reduces the harm of explosion to the surroundings, is convenient to implement, and effectively improves the production efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a cross-sectional view of an explosion protection device provided by the present invention;

FIG. 2 is a schematic structural diagram of a protective wall provided by the present invention;

fig. 3 is a schematic view of the arrangement of the explosion protection device provided by the present invention;

reference numerals:

1: a foundation; 2: explosion construction points; 3: a base;

4: a protective wall; 5: a support wall; 6: a metal frame;

7: sound-absorbing cotton; 8: a bolt; 9: opening the door;

10: a protective door; 11: a slide rail; 12: a mountain body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An explosion protection device according to the present invention will now be described with reference to figures 1 to 3.

The present embodiment provides an explosion protection device, locate explosion construction point 2's breach department, include: the foundation comprises a base 3 and a protective wall 4, wherein the protective wall 4 is arranged at the top end of the base 3, and the base 3 is buried in a foundation 1; the protecting wall 4 comprises a sound absorption assembly and a supporting wall 5, wherein the sound absorption assembly is arranged on the explosion-facing surface of the supporting wall 5 and is used for absorbing shock waves.

The explosion construction point 2 proposed in this embodiment is the place where the explosion occurs; fig. 3 is a schematic layout view of the explosion protection device provided by the present invention, as shown in fig. 3, a mountain 12 is provided around the explosion application point 2, but the explosion application point 2 cannot be completely surrounded, that is, a gap exists around the explosion application point 2, and when an explosion occurs, a certain shock wave is generated and propagates along the gap; in the embodiment, the explosion protection device is arranged at the gap of the explosion construction point 2, so that the propagation of the shock wave in the gap direction is blocked, and the influence of the shock wave on surrounding buildings or other buildings is reduced.

Fig. 1 is a cross-sectional view of an explosion protection device provided by the present invention, and referring to fig. 1, the explosion protection device provided by the present embodiment includes a base 3 and a protection wall 4, the protection wall 4 is disposed on the top end of the base 3, and the base 3 is buried in a foundation 1; specifically, the base 3 is a cube, and the bottom surface of the protective wall 4 is connected to the top surface of the base 3; further, the recess of certain degree of depth is equipped with in the ground 1 department of breach department, and the size of recess matches with the size of base 3, and base 3 inlays in the recess, and then stabilizes protecting wall 4 on the base 3, makes protecting wall 4 be in vertical state all the time, avoids the shock wave to push down protecting wall 4, improves protecting wall 4's stability.

Further, the protective wall 4 comprises a sound absorption assembly and a support wall 5, the sound absorption assembly is arranged on the explosion facing surface of the support wall 5, wherein the explosion facing surface of the support wall 5 is arranged on one side close to the explosion construction point 2, and the back explosion facing surface of the support wall 5 is arranged on one side far away from the explosion construction point 2; the sound absorption assembly is arranged on the explosion-facing surface of the support wall 5, the sound absorption assembly has a certain buffering effect, in the explosion process, shock waves preferentially enter the sound absorption assembly, the energy of the shock waves is absorbed in the sound absorption assembly, the energy of the shock waves is reduced, and the reflection effect is weakened; when part of shock waves completely pass through the sound absorption assembly and reach the supporting wall 5, the shock waves are reflected on the surface of the supporting wall 5, the reflected shock waves enter the sound absorption assembly again and are absorbed by the sound absorption assembly, the process is repeated, the energy carried by the shock waves passing through the sound absorption assembly and the supporting wall 5 is obviously reduced, the propagation of the shock waves is blocked, and the influence of explosion on the periphery is further reduced.

In the embodiment, the protective wall is arranged at the top end of the base, and the base is embedded in the foundation, so that the protective wall is always kept in a vertical state, the stability of the protective wall is enhanced, and the protective wall is prevented from being pushed down by shock waves; the sound absorption assembly is arranged on the explosion-facing surface of the support wall, so that the sound absorption assembly can effectively absorb the energy of shock waves, and the shock waves penetrating through the sound absorption assembly and entering the support wall can be reflected into the sound absorption assembly to be absorbed again, so that the impact force of the shock waves is weakened, and the propagation of the shock waves along the direction of the gap is blocked; the explosion protection device is simple in structure and good in protection effect, reduces the harm of explosion to the surroundings, is convenient to implement, and effectively improves the production efficiency.

On the basis of the above-mentioned embodiment, the explosion protection device that this embodiment provided still includes metal crate 6, inhales the sound subassembly and includes inhales the sound cotton 7, inhales the sound cotton 7 and locates between metal crate 6 and knee wall 5, and metal crate 6 is used for fixing to inhale sound cotton 7.

Specifically, the sound absorption assembly comprises sound absorption cotton 7, the sound absorption cotton 7 is filled with gaps, and the sound absorption cotton has a certain buffering effect and can absorb energy in shock waves; furthermore, in order to prevent the sound absorption cotton 7 from falling off, the sound absorption cotton 7 is arranged on the explosion-facing surface of the support wall 5, the sound absorption cotton 7 is fixed between the metal frame 6 and the support wall 5 by the metal frame 6, so that the energy of shock waves can be absorbed preferentially, the energy of the shock waves reflected by the support wall 5 can also be absorbed, and the shock force of the shock waves can be further reduced and buffered.

In this embodiment, the sound absorbing member is not limited to sound absorbing cotton, and may be made of other materials, so as to absorb energy in the shock wave and block propagation of the shock wave.

On the basis of the above embodiment, the metal frame 6 and the support wall 5 are connected by the bolts 8.

In a specific embodiment, the metal frame 6 is a stainless steel frame, and referring to fig. 1 and 2, the stainless steel frame is a grid, and the sound-absorbing cotton 7 is disposed in the grid stainless steel frame, that is, the grid stainless steel frame wraps the sound-absorbing cotton 7 to prevent the sound-absorbing cotton 7 from falling off; further, the stainless steel frame is connected with the support wall 5 through a plurality of bolts 8; specifically, the nuts of the plurality of bolts 8 are welded to the stainless steel frame and to the side near the support wall 5, which facilitates the fastening of the bolts 8 from the metal frame 6 through the support wall 5.

In another embodiment, a nut may be fixed to the metal frame 6, and a bolt 8 may be passed through the back-blasting side of the support wall 5 to be fixed in a matching manner with the nut on the metal frame 6.

In this embodiment, the nut and/or nut on the bolt 8 is welded on the metal frame 6, so that the fixation between the metal frame 6 and the support wall 5 can be enhanced, and the nut or bolt 8 is prevented from shaking on the metal frame 6, thereby enhancing the fixation between the metal frame 6 and the support wall 5.

In this embodiment, do not specifically limit about the fixed between metal crate 6 and knee wall 5, can realize connecting between them, avoid metal crate 6 to rock when the explosion, the effect of inhaling the sound of inhaling sound cotton 7 can.

In this embodiment, the structure of the metal frame is not particularly limited, and the sound-absorbing cotton may be fixed without generating energy that affects the sound-absorbing cotton to absorb shock waves.

On the basis of the above embodiment, further, the size of the sound-absorbing cotton 7 is matched with the size of the support wall 5, and the thickness of the sound-absorbing cotton 7 is 0.2m or more.

In a specific embodiment, inhale the length and the width of sound cotton 7 and match with the length and the width of knee wall 5 respectively, make and inhale the sound cotton and cover the knee wall comprehensively, inhale the thickness of sound cotton 7 and be 0.2m, the cavity of stainless steel metal framework 6 sets up according to the thickness of inhaling sound cotton 7, and latticed stainless steel metal framework 6 can wrap up completely and inhale sound cotton 7 promptly can, avoid inhaling the sound cotton 7 and drop.

In the embodiment, the thickness of the sound absorption cotton 7 is set to be 0.2m, the sound absorption cotton 7 with the thickness of 0.2m has a certain buffering effect, and when shock waves enter the sound absorption cotton 7, the sound absorption cotton 7 can absorb energy and reduce the energy of the shock waves; further, the sound-absorbing cotton 7 can also absorb shock waves reflected by the supporting wall 5. In another embodiment, the sound-absorbing cotton 7 has a thickness of 0.5 m.

In this embodiment, the thickness of the sound absorbing cotton 7 is set to 0.2m or more, and the influence of the too small thickness of the sound absorbing cotton 7 on the buffering effect of the sound absorbing cotton 7 can be avoided. In this embodiment, the thickness of the sound-absorbing wool 7 is not particularly limited, and may be limited according to the actual situation of explosion, so as to absorb the energy in the shock wave and block the propagation of the shock wave.

On the basis of the above embodiment, the thickness of the support wall 5 is 0.4m or more, and the height of the support wall 5 is 8m or more.

In one embodiment, the thickness of the support wall 5 is 0.4m, and the support wall 5 with a certain thickness can prevent the shock wave from penetrating through the support wall 5 to affect the surrounding things; further, the height of the supporting wall 5 is 8m, because the shock wave has a certain impact range, the height of the supporting wall 5 is too low, and the shock wave can pass through the upper side of the supporting wall 5, which affects the surrounding environment and people.

In another embodiment, the thickness of the support wall 5 is 0.4m and the height of the support wall 5 is 10 m. In yet another embodiment, the thickness of the support wall 5 is 0.5m, and the height of the support is 12 m.

In this embodiment, the thickness of the support wall 5 and the height of the support wall 5 are not particularly limited, and may be set according to actual conditions, so as to prevent the shock wave from penetrating through the support wall 5 or penetrating through the support wall 5 from above to affect the surrounding objects.

On the basis of the above embodiment, the thickness of the base 3 is more than or equal to 5 times of the thickness of the support wall 5, and the depth of the base 3 is more than or equal to half of the thickness of the base 3; the depth of the base 3 is the depth of the base 3 buried underground, the thickness of the base 3 is the width of the base 3, and the length of the base 3 is the length of the gap of the explosion construction point 2 and can be any length.

In one embodiment, the thickness of the support wall 5 is 0.4m, the height is 10m, the thickness of the base 3 is 2m, the depth of the base 3 is 1m, and the support wall 5 is arranged on the top surface of the base 3 and is positioned in the middle of the thickness direction of the base 3; the device base 3 is more stable, and when exploding, the base 3 can support the support wall 5, so that the support wall 5 is always in a vertical state, and the support wall 5 is prevented from being pushed down by shock waves.

In another embodiment, the thickness of the support wall 5 is 0.4m, the height is 10m, the thickness of the base 3 is 3m, the depth of the base 3 is 2m, and the support wall 5 is arranged on the top surface of the base 3 and is positioned close to the explosion-facing side.

In this embodiment, the size of the base 3 is not specifically limited, and the base can be limited according to actual conditions, so that the support wall 5 is always in a vertical state, and the support wall 5 is prevented from being pushed down by shock waves.

In this embodiment, the connection position of the support wall 5 and the base 3 is not specifically limited, and the support wall 5 may be kept vertical and not pushed down by the shock wave at the middle position in the thickness direction of the base 3, or at a position close to the explosion-facing side, or at a position close to the back explosion side.

On the basis of the above embodiments, the lower portion of the protection wall 4 provided by this embodiment is provided with a door 9, the explosion-facing side and/or the back explosion side of the door 9 are correspondingly connected with a protection door 10, and the size of the protection door 10 is larger than that of the door 9.

Referring to fig. 2, the protective wall 4 includes a support wall 5, sound-absorbing cotton 7 and a metal frame 6, the sound-absorbing cotton 7 and the metal frame 6 are matched with the support wall 5 in size, the sound-absorbing cotton 7 is wrapped by the metal frame 6 to prevent the sound-absorbing cotton 7 from falling off, and the metal frame 6 is connected with the support wall 5 through a bolt 8 to strengthen the fixation of the sound-absorbing cotton; the lower part of the protective wall 4 is provided with a door 9, specifically, the lower part of the support wall 5 is provided with a door opening with the height of 5m and the width of 5m, the thickness of the door opening is consistent with that of the support wall 5, the positions corresponding to the metal frame 6 and the sound-absorbing cotton 7 are also provided with the door 9 with the same size, a user or a vehicle can pass in and out through the door opening, namely a passage for vehicles and pedestrians to pass in and out, and if a worker can enter the explosion construction site 2 through the door 9 to prepare for plate prevention, explosive laying, detonation network setting and the like; after the explosion is finished, follow-up matters are processed, and the structure can improve the efficiency.

Further, a protective door 10 is correspondingly connected to the explosion-facing side of the door 9, and the size of the protective door 10 is larger than that of the door 9, so that the door 9 is completely covered, and shock waves are prevented from being transmitted from the door 9 during explosion. In a specific embodiment, the height of the protective door 10 is 5.5m, the width of the protective door 10 is 6m, the protective door 10 can completely cover the door 9 when completely closed, that is, the distance between the side edge of the protective door 10 and the nearest side edge of the door 9 is about 0.5m, the distance between the upper side of the protective door 10 and the upper side of the door is about 0.5m, wherein the distances between the two sides of the protective door 10 and the nearest side edge of the door 9 can be equal or unequal, and it is sufficient that the protective door 10 completely covers the door 9.

In the embodiment, the protection door 10 is additionally arranged at the position of the opening door 9, and the size of the protection door 10 is larger than that of the opening door 9, so that the opening door 9 is completely covered, the penetration of shock waves can be prevented, the opening or the closing can be freely performed, and the related work is performed when the shock waves enter or exit the explosion construction point 2.

In a preferred embodiment, protective doors 10 are arranged on the explosion-facing side and the explosion-backing side of the door 9, and sound-absorbing cotton 7 is also arranged between the protective doors 10; specifically, after the preparation work of the explosion construction point 2 is completed, the first protective door 10 on the explosion facing side of the door 9 is closed, the sound-absorbing cotton 7 is arranged on the back explosion side of the first protective door 10, the thickness of the sound-absorbing cotton 7 is larger than or equal to that of the sound-absorbing cotton 7 around the door 9, and the second protective door 10 arranged on the back explosion side of the door 9 is not influenced, so that the first protective door 10 and the second protective door 10 are respectively arranged on the explosion facing side and the back explosion side of the door 9, so that the impact wave shadow is prevented from being transmitted along the door 9 during explosion, and the sound-absorbing cotton 7 is arranged between the two protective doors 10, so that the energy of the impact wave can be reduced, and the transmission of the impact wave is further blocked; meanwhile, people and vehicles can enter and exit.

In this embodiment, the size of the protective door 10 is not specifically limited, and the protective door can completely cover the door 9; in addition, the installation position of the protective door 10 is not particularly limited, so that people and vehicles can enter and exit, and the impact wave can be prevented from penetrating out of the door opening 9 to affect the surrounding objects.

On the basis of the above embodiment, at least one of the upper side and the lower side of the door 9 or at least one of the left side and the right side is provided with a slide rail 11, and the protective door 10 is slidably connected to the door 9 through the slide rail 11.

Further, the slide rail 11 is arranged along the width direction of the door opening 9, and the length of the slide rail 11 is more than or equal to 2 times of the width of the protective door 10; or the slide rail 11 is arranged along the height direction of the door opening 9, and the length of the slide rail 11 is more than or equal to 2 times of the height of the protective door 10.

In a preferred embodiment, the upper and lower sides of the door 9 are respectively provided with a slide rail 11, that is, the slide rail 11 is arranged along the width direction of the door 9, that is, the length direction of the slide rail 11 is consistent with the width direction of the door 9, as shown in fig. 2, the width of the door 9 is 5m, and the height thereof is 5 m; the width of the protective door 10 is 6m, and the height of the protective door 10 is 5.5 m; the slide rails 11 are arranged on the upper side and the lower side of the door 9, and are arranged from the left side to the right side of the door 9, or are arranged from the right side to the left side of the door 9, the length of the slide rails 11 is more than or equal to 2 times of the width of the protective door 10, namely the length of the slide rails 11 is 12m, and the protective door 10 can be completely opened leftwards through the slide rails 11; or the slide rail 11 is completely opened rightwards, so that the condition that incomplete opening is caused to influence the entering and exiting of a user and a vehicle is avoided.

In another embodiment, the left side and the right side of the door 9 are respectively provided with a slide rail 11, that is, the slide rail 11 is arranged along the height direction of the door 9, and the length direction of the slide rail 11 is consistent with the height direction of the door 9; specifically, the left side and the right side of the door 9 are respectively provided with a slide rail 11, and the slide rails 11 are arranged upwards from the bottom of the door 9; further, the length of the slide rail 11 is greater than the height of the protective door 10, for example, the height of the protective door 10 is 5.5m, and the length of the slide rail 11 is 11m, so that the protective door 10 can be completely opened upwards along the slide rail 11, and the situation that the entrance and exit of pedestrians or vehicles are not completely influenced by incomplete opening is avoided.

In this embodiment, the setting position of the slide rail 11 is not specifically limited, and at least one of the upper side and the lower side of the door 9 may be set, that is, set along the width direction of the door 9, so that the door 9 can be completely opened leftward or rightward; at least one of the left and right sides of the door 9, that is, in the height direction of the door 9, may be provided so that the door 9 can be fully opened upward.

In the embodiment, the protective door 10 is connected with the door opening 9 through the sliding rail 11 to realize opening or closing, and the structure is simple and labor-saving.

In this embodiment, the connection between the protection door 10 and the open door 9 is not particularly limited, and the protection door 10 may be freely opened or closed.

On the basis of the above embodiments, the foundation 3 provided in this embodiment is a reinforced concrete foundation 3, and the support wall 5 is a reinforced concrete support wall 5.

The arrangement of the explosion construction points 2 is shown in fig. 3, the periphery of the explosion construction points 2 is a mountain 12, but a gap with the length of 20m is provided, a protective device with the length of 20m is arranged at the gap, and the explosion construction points 2 are enclosed into a basin; specifically, referring to fig. 1, the protective device comprises a base 3 and a protective wall 4, wherein the base 3 is poured in the foundation 1 by reinforced concrete, the thickness of the base 3 is 2m, the height of the base is 1m, and the length of the base is 20 m; the protective wall 4 comprises a support wall 5, the support wall 5 is arranged above the base 3, namely the support wall 5 is located on the top surface of the base 3, the support wall 5 is also poured by reinforced concrete and used for fixing the reinforced concrete base 3 of the support wall 5 to ensure that the support wall 5 is always vertically fixed, specifically, the thickness of the support wall 5 is 0.4m, the height is 12m, the length is 20m, and the support wall 5 is located in the middle of the thickness direction of the base 3 to avoid overlarge energy of shock waves and push down the support wall 5.

Furthermore, a stainless steel frame and sound-absorbing cotton 7 are arranged on the explosion-facing surface of the support wall 5, and the sound-absorbing cotton 7 is wrapped by the stainless steel frame to prevent the sound-absorbing cotton 7 from falling off; the stainless steel frame is fixed on the support wall 5 through the fastening bolts 8, namely, the nuts are welded on one side, close to the support wall 5, of the stainless steel frame, the fastening bolts 8 penetrate through two sides of the support wall 5, the other side of the support wall 5 is screwed up through the nuts, and the stainless steel frame is prevented from shaking during explosion to influence the effect of stopping shock waves.

Furthermore, the lower part of the protective wall 4 is provided with a door 9, namely a door opening with the height of 5m and the width of 5m is reserved on the support wall 5, the sound absorption cotton 7 and the stainless steel frame and is used for a passage for vehicles or pedestrians to enter and exit; the upper side and the lower side of the door 9 are respectively provided with a sliding rail 11, the protective door 10 is placed between the guide rails and used for sealing the door 9, and the size of the protective door 10 is slightly larger than that of the door 9, so that the protective door 10 can completely cover the door 9.

In the embodiment, the protection device is arranged at the notch of the explosion construction point 2, the door 9 is arranged at the lower part of the protection door 10, so that the protection door 10 can conveniently enter and exit the explosion construction point 2 to prepare for work, and the protection door 10 is pushed and pulled to the door 9 after the explosion preparation work is finished, so that the door 9 is blocked and the explosion is started; during explosion production, air shock waves generated by explosion of the explosive are transmitted to the protective wall 4, and shock wave energy is absorbed by the protective wall 4, so that the shock waves cannot act on the back explosion side of the protective wall 4 to block the transmission of the shock waves in the direction of the gap; specifically, the sound-absorbing cotton 7 has a hole with a buffering effect, so that shock waves enter the sound-absorbing cotton 7, the energy of the shock waves is absorbed in the sound-absorbing cotton 7, the energy of the shock waves is reduced, and the reflection effect is weakened; when a part of shock waves completely penetrate through the sound absorption cotton 7 to reach the support wall 5, the support wall 5 is made of rigid materials, the shock waves are reflected on the surface of the support wall 5, the reflected shock waves enter the sound absorption cotton 7 again, shock wave energy is absorbed by the sound absorption cotton 7 again, and at the moment, energy carried by the shock waves penetrating through the sound absorption cotton 7 is very weak and is not enough to generate adverse effects on the environment and people, so that the shock wave energy in the direction of the gap is weakened. After the explosion is over, the protective door 10 is opened and the personnel and vehicles can enter the explosion application point 2 for subsequent work.

The protection device provided by the embodiment reduces the blasting warning range in the explosive welding production, and can improve the explosive welding production efficiency; the protection device is firm and durable, and has long service life; the protective wall can effectively absorb blast shock waves in explosive welding production and obstruct propagation in the road entrance direction, and can enhance the protective effect and reduce the safety risk.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an explosion protection device, locates explosion construction point's breach department, its characterized in that includes: the protective wall is arranged at the top end of the base, and the base is buried in a foundation; the protecting wall comprises a sound absorption assembly and a supporting wall, wherein the sound absorption assembly is arranged on the explosion-facing surface of the supporting wall and is used for absorbing shock waves.

2. The blast protection device of claim 1, further comprising a metal frame, wherein the sound absorbing assembly comprises sound absorbing cotton, the sound absorbing cotton is disposed between the metal frame and the support wall, and the metal frame is configured to secure the sound absorbing cotton.

3. The blast shield apparatus according to claim 2, wherein said metal frame is bolted to said support wall.

4. The blast shield apparatus of claim 2, wherein the sound-absorbing wool is sized to match the size of the support wall and has a thickness of 0.2m or greater.

5. The blast shield apparatus according to claim 1, wherein the thickness of the support wall is 0.4m or more and the height of the support wall is 8m or more.

6. The blast shield apparatus according to claim 5, wherein said base has a thickness equal to or greater than 5 times a thickness of said support wall, and a depth equal to or greater than half the thickness of said base.

7. The explosion protection device according to any one of claims 1 to 6, wherein a door is provided at a lower portion of the protection wall, a protection door is correspondingly connected to an explosion-facing side and/or an explosion-backing side of the door, and the size of the protection door is larger than that of the door.

8. The explosion protection device of claim 7, wherein at least one of the upper and lower sides or the left and right sides of the door is provided with a slide rail, and the protection door is slidably connected to the door by the slide rail.

9. The explosion protection device of claim 8, wherein the slide rail is disposed along a width direction of the door, and a length of the slide rail is 2 times or more of a width of the protection door;

or the slide rail is arranged along the height direction of the door, and the length of the slide rail is more than or equal to 2 times of the height of the protective door.

10. The blast shield apparatus according to claim 1, wherein said foundation is a reinforced concrete foundation and said support wall is a reinforced concrete support wall.