阅读说明：本技术 一种爆炸焊接污染治理方法 (Explosive welding pollution treatment method ) 是由 李雪交 毕志雄 李梁伟 刘玉柱 周雨欣 田希若 苏晨曦 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种爆炸焊接污染治理方法包括自约束结构炸药、水弹、减震沟及消音墙。意在降低爆炸焊接过程中产生的噪音、震动及有害气体问题。通过自约束结构炸药降低爆炸焊接装药量,减少爆炸产生的污染。利用水弹覆盖爆炸气体产物,降低有害气体的扩散范围,溶解部分爆炸产生的氮氧化物。同时,水体在爆炸能量作用下形成水雾,使得噪音在湿空气中衰减。采用减震沟的方式改变震动的传播介质,阻隔爆炸地震波在地下的传播。在居民区距离爆炸作业区较近面设立消音墙,利用消音材料降低噪音强度。通过组合自约束结构炸药、水弹、减震沟及消音墙等多重方式,综合作用来降低爆炸焊接污染。(The invention discloses an explosive welding pollution treatment method which comprises self-restraint structural explosive, water bombs, a damping ditch and a silencing wall. The purpose is to reduce the noise, vibration and harmful gas problems generated in the explosive welding process. The explosive welding explosive loading is reduced through the self-restraint structural explosive, and pollution caused by explosion is reduced. The water bomb is used for covering explosive gas products, the diffusion range of harmful gas is reduced, and partial nitrogen oxide generated by explosion is dissolved. Meanwhile, the water forms water mist under the action of explosion energy, so that noise is attenuated in wet air. The mode of the damping trench is adopted to change the propagation medium of the vibration, and the propagation of the explosion seismic waves in the ground is blocked. A silencing wall is arranged on the surface of the residential area close to the explosion operation area, and the noise intensity is reduced by using silencing materials. The explosion welding pollution is reduced through the combination of multiple modes such as self-restraint structure explosive, water bomb, damping ditch and noise reduction wall.)

1. An explosive welding pollution treatment method comprises self-restraint structure explosive, water bombs, damping ditches and a silencing wall; the method is characterized in that: the self-constrained structural explosive comprises a structural explosive and a welding device; the structural explosive comprises double-layer or multi-layer explosives and a detonating detonator; the structural explosive comprises a high-explosion-speed explosive layer and a low-explosion-speed explosive layer; the structural explosive is a double-layer explosive, and the high-explosion-speed explosive layer is positioned at the upper part of the low-explosion-speed explosive layer; the self-constrained structural explosive can be applied to a multilayer welding structure; in consideration of the thickness uniformity of each layer of explosive of the structural explosive, each layer of explosive can be loaded with powder by adopting an aluminum honeycomb panel; in order to realize the detonation of the low-detonation-velocity explosive layer by the high-detonation-velocity explosive layer, each layer of explosive of the structural explosive is required to be adhered; the detonating primer is arranged on a high-detonation-velocity explosive layer of the structural explosive; the welding device comprises a substrate, a compound plate and a supporting material; the supporting material is responsible for providing the distance between the substrate and the compound plate.

The water bomb comprises a simple bracket, a disintegration detonator and a bomb body; the simple bracket is used for fixing the projectile body; in consideration of economic and environmental protection factors, the simple bracket is made of economic and environmental protection materials such as wood or metal recyclable materials; the elastomer is a water body loaded by plastic or oily paper; the water consumption in the elastomer is moderate, and the water consumption is reduced when the use condition is met; it covers the explosion gas product, reduces the diffusion range of harmful gas, dissolves partial nitrogen oxide generated by explosion; meanwhile, the water body attenuates noise in the wet air under the action of explosion energy.

The damping ditch comprises soil and damping materials. The shock absorbing material may be air. The shock absorption ditch is in an arc shape or a straight line shape surrounding the explosion operation area.

The sound attenuation wall comprises a frame and sound attenuation materials. The sound-deadening material can adopt sound-absorbing cotton, sound-deadening felt and foam.

2. The method according to claim 1, wherein the structural explosive is responsible for providing energy required for welding; the total thickness of the layers of explosive in the structured explosive should be above its critical diameter.

3. The method according to claim 1, wherein the demolition primer is detonated within a predetermined time to demolish the projectile and the simple bracket and fall without support, thereby ensuring that the demolition primer covers detonation products during detonation of the explosive.

4. The method as claimed in claim 1, wherein the shock absorption trench is adapted to change the shock propagation medium to block the propagation of the seismic wave of the explosion in the ground.

5. The method according to claim 1, wherein the sound deadening wall reduces the intensity of noise in the air by using a sound deadening material; in consideration of the transmission form of noise in the air, the sound deadening wall is in an arc shape or a straight shape around the residential area.

6. The method according to claim 1, wherein an explosive charge can be added to the demolition primer of the water bomb to increase the water diffusion range after detonation.

7. The method according to claim 1, wherein the water body of the bomb can be used for a single welding device, and the installation height and water volume can be increased to cover a plurality of welding devices, so that the single bomb is suitable for the case of multiple welding devices.

Technical Field

The invention relates to the field related to explosive welding, in particular to an explosive welding pollution treatment method.

Background

Explosive welding is a composite process integrating fusion welding, pressure welding and diffusion welding. Explosion welding (or explosion cladding) is a special cladding process and is widely applied to the fields of chemical pipelines, mechanical manufacturing, nuclear power stations, aerospace and the like. Explosive welding is the same as other blasting projects, and explosives are used as energy sources. Explosive cladding generally adopts low-detonation-velocity powdery explosives as driving explosive charges for composite welding, the explosive charges have the defects of uneven density, easy dilution and the like, and most of energy generated by explosion of the welding explosives is released in the form of shock waves and detonation products and is unconstrainedly dissipated to the environment, so that the utilization efficiency of welding energy is low. Meanwhile, explosion welding is open-air explosion operation, so that the problems of serious vibration, harmful gas, noise and the like exist.

In view of the problems in the prior art, some solutions have been proposed in the prior patent literature. The Chinese patent with the application number of 201710177875.2 discloses a self-restraint explosive welding device with high energy utilization rate, and aims to solve the problems of low explosive energy utilization rate in the traditional explosive cladding, potential safety hazards of flying of composite plates in double-sided explosive cladding and the like. The welding explosive is arranged on the uppermost part of the method, and the welding explosive can provide restraint for the composite board when detonated, so that the potential safety hazard of flying of the composite board is solved. The two sides of the explosive are both provided with the compound plates, so that a certain constraint effect can be provided when the explosive is detonated. But the restraint that the doubler plate can provide is limited, and upper explosion composite sheet is directly thrown into the air, easily causes composite sheet damage and safety risk. The Chinese patent with the application number of 202110366800.5 discloses an explosive welding self-restraint structure explosive, aiming at the problem of low explosive welding explosive charging energy utilization rate, the restraint effect of the high-speed detonation of a high-detonation velocity explosive on a low-detonation velocity explosive is utilized, the explosive energy dissipation is reduced, the efficiency of converting explosive explosion energy into composite plate kinetic energy is increased, and the welding explosive energy utilization efficiency is improved. However, the patent considers more about improving the energy utilization rate of the welding explosive, and does not provide an effective solution for noise, vibration and harmful gas generated by explosion.

Therefore, the invention provides an explosion welding pollution treatment method, which solves the problems of noise, vibration and harmful gas in the explosion welding production. By combining multiple modes of self-restraint structure explosives, water bombs, damping ditches, silencing walls and the like, the environmental pollution caused by explosive welding is comprehensively reduced, and the influence on the surrounding environment is reduced.

Disclosure of Invention

The invention aims to provide a pollution treatment method for explosive welding, aiming at reducing the problems of noise, vibration and harmful gas generated in the explosive welding process. The explosive welding explosive loading is reduced through the self-restraint structural explosive, and pollution caused by explosion is reduced. The water bomb is used for covering explosive gas products, the diffusion range of harmful gas is reduced, and partial harmful gas such as nitrogen oxide generated by explosion is dissolved. Meanwhile, water mist is generated by explosion of the water body, so that noise generated by explosion is attenuated in the air. The damping ditch is arranged to change the propagation medium of seismic waves and block the propagation of the explosion seismic waves in the ground, so that the vibration is weakened. A silencing wall is arranged near a residential area close to an explosion operation area, and noise intensity is reduced by using silencing materials. The environmental pollution caused by explosive welding is reduced through the comprehensive effect of combining multiple modes of self-restraint structural explosives, water bombs, damping ditches, silencing walls and the like. Therefore, in order to meet the above requirements, the technical problems to be solved by the present invention are achieved by the following technical solutions.

A method for treating the pollution caused by explosion welding includes self-contained explosive, water bullet, damping channel and silencing wall.

The self-constrained structural explosive comprises a structural explosive and a welding device. The structural explosive is responsible for providing energy required by welding. The structural explosive comprises welding explosive and a priming detonator. The structural explosive comprises a high-explosion-speed explosive layer and a low-explosion-speed explosive layer. The total thickness of the layers of explosive in the structured explosive should be above its critical diameter. The structural explosive is a double-layer explosive, and the high-explosion-speed explosive layer is positioned on the upper part of the low-explosion-speed explosive layer. The self-constrained structural explosive can be applied to a multilayer welding structure. And taking the thickness uniformity of each layer of the structural explosive into consideration, each layer of the structural explosive can be charged by adopting an auxiliary device. In order to realize the detonation of the low-detonation-velocity explosive layer by the high-detonation-velocity explosive layer, the layers of explosives of the structural explosive are required to be adhered. The detonating primer should be arranged on the high detonation velocity explosive layer of the structural explosive. The welding device comprises a substrate, a compound plate and a supporting material. The supporting material is responsible for providing the distance between the substrate and the compound plate.

The water bomb comprises a simple support, a disintegration detonator and a bomb body. The simple support shown is responsible for holding the projectile. In consideration of economic and environmental protection factors, the simple bracket is made of economic and environmental protection materials such as wood or recyclable metal materials. The demolition detonator is detonated within a specified time, so that the bomb and the simple support are demolished to lose support and fall, and the detonation product is covered when the explosive explodes. The elastomer is a water body loaded by plastic or oily paper. It covers the explosive gas products, reduces the diffusion range of harmful gases, and dissolves part of the nitrogen oxides generated by explosion. Meanwhile, the water forms water mist under the explosion energy, so that the noise is attenuated in the air. The demolition detonator can be added with explosive charges, so that the water body diffusion range after detonation is improved. The body of water can be used for a single welding device, and can also be raised to an installation height or volume to cover multiple welding devices, using a single water bullet for multiple welding device applications.

The damping ditch comprises soil and damping materials. The shock-absorbing material can adopt air. The shock absorption ditch is in an arc shape or a straight line shape surrounding the explosion operation area. The intensity of seismic waves is attenuated when the seismic waves pass through the damping trench by changing a propagation medium.

The sound attenuation wall comprises a frame and sound attenuation materials. The sound-deadening material can adopt sound-absorbing cotton, sound-deadening felt, foam and the like. Which utilizes sound deadening materials to reduce the intensity of noise in the air. In consideration of the transmission form of noise in air, the silencing wall is in an arc shape or a straight line shape around a residential area.

The explosive with the self-restraint structure effectively reduces explosive welding explosive loading in a mode of improving the explosive energy utilization rate, and simultaneously reduces the environmental pollution caused by explosion. And hanging a water bomb on the welding charge, and realizing the falling of the water bomb by utilizing the explosion of the detonator. And the detonation time of the detonator is controlled, so that the water bomb is separated from the upper part of the explosive when the welding explosive is detonated. And (4) covering harmful gas generated by explosion of the explosive with a water bomb, and dissolving part of nitrogen oxide in the harmful gas. Meanwhile, water forms water mist under the explosion energy, the water content in the air can be improved, and the propagation distance of noise in the air is reduced. And calculating the gravity acceleration time by using the accurate delay of the digital detonator, and designing the water bomb to contact with an explosive product at a better time after the detonation. The falling water body can reduce the flying radius of part of harmful products, reduce the dissipation of shock waves and dissolve part of harmful gas. And (4) excavating a damping ditch according to the environment of the operation site, wherein damping materials such as air and the like can be selected, so that the damage of partial seismic waves to the surrounding environment is reduced. Meanwhile, a silencing wall is arranged in a residential area to be protected, so that noise pollution caused by the attenuation of the explosion shock waves is weakened.

The method is aimed at the open-air explosion operation of explosion welding, and can greatly reduce noise, vibration and harmful gas pollution caused by explosive explosion, and reduce the environmental pollution caused by welding. Under the condition of reduced use cost, a large amount of time cost and economic cost are saved for environmental pollution treatment after explosive welding operation, and the method has higher economic value and environmental protection value.

The method completely meets the requirement for reducing the pollution of explosion welding, and can provide powerful support for the production of the explosion composite board. Meanwhile, the pollution defect of explosive explosion is reduced, the living conditions of residential areas near the explosion operation are improved, and the economic efficiency is improved. The production method of the explosive composite board is further improved and optimized, and the method is simple in material obtaining and convenient to implement. The technology has obvious economic benefit and the characteristic of energy conservation and emission reduction, and the popularization and application of the technology are believed to have wide market prospect.

Drawings

FIG. 1 is a schematic diagram of the general concept of the present invention;

FIG. 2 is a schematic diagram of the general structure of the present invention;

FIG. 3 is a schematic illustration of the installation of the self-contained structured explosive of the present invention;

FIG. 4 is a schematic view of the installation of the water cannonball of the present invention;

FIG. 5 is a schematic view of the damper groove arrangement of the present invention;

fig. 6 is a schematic view of the arrangement of the silencing wall of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, an explosive welding pollution abatement method comprises a self-confined structural explosive 1, a water bomb 2, a damping trench 3 and a sound attenuation wall 4.

The self-constrained structural explosive 1 comprises a structural explosive 11 and a welding device 12. The structural explosive 11 is responsible for providing the energy required for welding. The structural explosive 11 comprises welding explosive and a priming detonator 13. The structural explosive 11 includes a high detonation velocity explosive layer 111 and a low detonation velocity explosive layer 112. The total thickness of the layers of explosive within the structured explosive 11 should be above its critical diameter. The top end of the structural explosive 11 is a double-layer explosive, and the high-detonation-velocity explosive layer 111 is positioned on the upper part of the low-detonation-velocity explosive layer 112. In consideration of the thickness uniformity of each layer of the structural explosive 11, each layer of the structural explosive can be loaded with the aid of an aluminum honeycomb plate. To achieve detonation of the low detonation velocity explosive layer 112 by the high detonation velocity explosive layer 111, the layers of the structural explosive 11 should remain in the necessary fit. The primer detonator 13 should be disposed in the high explosive layer 111 of the structural explosive 11. The soldering device 12 includes a substrate 121, a compound plate 122 and a supporting material 123. The supporting material 123 is responsible for providing the distance between the substrate 121 and the complex plate 122.

The water bomb 2 comprises a simple bracket 21, a disintegration detonator 22 and a bomb body 23. The simple support 21 is shown responsible for holding the projectile 23. The demolition detonator 22 is detonated within a specified time, so that the bomb body 23 and the simple support 21 are demolished to lose support and fall, and the product is covered when the explosive explodes. The elastomer 23 is filled with water body loaded by plastic or oily paper. The water amount in the elastomer 23 is moderate, and the water consumption is reduced when the use condition is met. The water bomb 2 covers the explosive gas product, reduces the diffusion range of harmful gas, and dissolves partial nitrogen oxide generated by explosion. Meanwhile, water forms water mist at high explosion temperature, so that the air humidity is increased, and the noise attenuation in wet air is increased.

The damping ditch 3 comprises a soil body 31 and a damping material 32. The shock absorbing material 32 may be air. Considering the transmission mode of the vibration, the damping ditch 3 should be an arc shape or a straight shape around the explosion operation area. The method can block the propagation of the explosion seismic waves in the underground by changing a vibration propagation medium.

The sound-deadening wall 4 includes a frame 41 and a sound-deadening material 42. The sound-deadening material 42 may be sound-deadening cotton, deadening felt, foam, or the like. Which reduces the intensity of the noise in the air with sound deadening material 42. The sound-deadening wall 4 is preferably formed in an arc shape or a straight shape surrounding the residential area in consideration of the form of propagation of noise in the air.

In the process of explosive welding, the self-restraint structure explosive 1 reduces pollution of explosive welding in a mode of reducing welding charge. The noise is propagated to the position of the silencing wall 4 in the air after being weakened by the water bomb 2, and finally reaches the environmental protection requirement through the action of the silencing wall 4. The intensity of the seismic wave is lower than the national standard when the seismic wave is transmitted to a residential area at a distance after being reduced by the damping trench 3 near the explosion operation area. The explosive detonation product is reduced in diffusion range under the constraint of the high detonation velocity layer 111 of the self-constraint structure explosive 1, and is partially dissolved in the water body in the water bomb 2.

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

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.