CN108709464B - Light flame long-acting self-combustion-supporting environment-friendly firecracker and manufacturing method thereof - Google Patents
Light flame long-acting self-combustion-supporting environment-friendly firecracker and manufacturing method thereof Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
The invention discloses an environment-friendly firecracker with long-acting light flame and self-combustion supporting and a manufacturing method thereof, wherein the environment-friendly firecracker comprises five structural layers from outside to inside, wherein the five structural layers are respectively a fixed structure, an air film layer, an initial combustion layer, a sealing layer and a high-pressure explosion layer; the fixed structure is specifically an EAA grid layer; the air film layer is specifically an unvulcanized ethylene propylene diene monomer film; the initial combustion layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed layer mixed with the solid organic salt after the atmospheric pressure is 1.1 to 1.2 times of the atmospheric pressure; the sealing layer is specifically composed of EAA, an unvulcanized ethylene propylene diene monomer rubber film and sodium peroxide powder according to a mass ratio of 8: 1.8:0.2 mixed layer. The invention has the advantages of good bursting effect, green and pollution-free raw materials, long-acting light flame, self-supporting combustion and harmless comburent.
Description
Technical Field
The invention relates to the field of special materials, in particular to an environment-friendly firecracker with long-acting luminous flame and self-combustion supporting and a manufacturing method thereof.
Background
The environment-friendly firecracker in the prior art generally refers to a colorful firecracker made of electrically-driven cement-based materials, and the colorful firecracker is a novel, efficient and safe colorful firecracker, not only has bright color, but also is environment-friendly. The traditional firecracker has complex production process, low speed and high cost, particularly has dangerous dispensing, can often cause hidden danger and harm, and changes the situation due to the occurrence of the colorful firecracker. The colorful firecrackers can show colorful dazzling colorful lights when being set off, are very beautiful and are very safe to set off; the safe salute has very low price and full individuation, is a new firecracker setting-off selection and is popular. However, even if the color light firecrackers are subjected to risk monitoring by the quality and technology supervision authorities in Shanghai markets, the electronic firecrackers in the market do not meet the national safety requirements by 2018 and 2 months according to data analysis, and the non-conforming items are mostly basic safety items, such as electric shock prevention structural requirements, electric gaps, creepage distances, electric strength, power connection, external connection flexible wires, plug type sizes and the like. If the items are not satisfactory, the items can cause the danger of electric shock, even fire and the like, and cause physical disability, burn and even death.
The environmental-friendly firecracker in the prior art is limited by the defects of the technical field and practical experience, and the environmental-friendly firecracker does not really appear in the full sense, so that the environmental-friendly firecracker which has good bursting effect, green and nuisanceless raw materials, long-acting luminous flame, self-supporting combustion and harmless burning objects does not exist in the current market.
Therefore, the market urgently needs an environment-friendly firecracker which has good bursting effect, green and pollution-free raw materials, long-acting luminous flame, self-supporting combustion and harmless burning objects.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the environment-friendly firecracker which has the advantages of good bursting effect, green and pollution-free raw materials, long-acting light flame, self-combustion supporting and harmless burning objects.
In order to achieve the purpose, the invention adopts the following technical scheme: a manufacturing method of environment-friendly firecrackers with long-acting luminous flame and self-combustion supporting comprises the following steps:
1) raw material preparation
Preparing sufficient methane, oxygen, 5-ethylidene-2-norbornene, ethylene, propylene, acrylic acid and sodium peroxide powder, mixing and wrapping a fire paper solid core wrapped with activated carbon powder and paraffin;
2) manufacture of structures
Mixing 5-ethylidene-2-norbornene, ethylene and propylene according to a mass ratio of 1: 10: 9 polymerizing, and reserving for later use under the condition of no vulcanization to obtain the later-used non-vulcanized ethylene propylene diene monomer;
polymerizing ethylene and acrylic acid according to the mass ratio of 2:3, extruding the ethylene and the acrylic acid into EAA wires with the diameter of 1.5mm-2mm, and weaving the obtained EAA wires into a basket structure with the grid clearance of 1mm-1.5mm according to the external dimension of the required firecrackers to obtain a standby basket;
thirdly, polymerizing ethylene and acrylic acid into EAA according to the mass ratio of 7:3, mixing the non-vulcanized ethylene propylene diene monomer prepared in the step I and the sodium peroxide powder prepared in the step 1) into the molten pool and uniformly stirring when the EAA is in a molten pool state, wherein the mixing ratio is 8/1.8/0.2 according to the mass ratio of the EAA to the non-vulcanized ethylene propylene diene monomer/the sodium peroxide powder; the molten pool after even stirring is injected into a hollow mould shell, and the shape volume of the hollow mould shell is 1/2-2/3 of the shape volume of the needed firecrackers;
mixing methane and oxygen according to the weight ratio of 1: 1, mixing with solid organic salt powder with the total mass accounting for 0.1-0.3% of the gas mass, and injecting the mixture into a gas transmission device provided with a gas pressure detection device to serve as a raw material A; taking 50-60% by mass of potassium hydroxide hydrothermal solution as a raw material B, wherein the hydrothermal solution is specifically an aqueous solution at the temperature of 80-90 ℃;
fifthly, pumping out air in the hollow mould shell obtained in the step III by using a needle type injector in a vacuum environment, injecting the raw material A obtained in the step IV into the hollow mould shell through a thin-diameter hollow needle with the aperture of 0.2-0.3 mm by using an air conveying device provided with an air pressure detection device until the air pressure in the hollow mould shell is increased to 7-8 times of atmospheric pressure, slowly withdrawing the thin-diameter hollow needle, slowly dripping the raw material B obtained in the step IV when the needle point of the thin-diameter hollow needle is withdrawn to be in contact with an entity in the hollow mould shell, and carrying out solvent sealing on the needle hole and hardening the needle hole to obtain a sealing layer composite high-pressure bursting layer for standby;
sixthly, injecting the non-vulcanized ethylene propylene diene monomer rubber to form a balloon-shaped hollow single-side opening film which is adaptive to the inner wall of the basket to be used obtained in the step two, and obtaining a film layer to be used;
3) manufacture of environmental protection firecrackers
Placing the sealing layer composite high-pressure burst layer to be used obtained in the fifth step in the stage 2) into the gas film layer to be used obtained in the sixth step, sleeving the mesh basket to be used obtained in the second step on the outer surface of the gas film layer to be used, then injecting the raw material A obtained in the second step into the gas film layer to be used, wherein the air pressure is 1.1-1.2 times of the atmospheric pressure, tightly attaching the raw material A to the outer wall of the gas film layer to be used and the inner wall of the mesh basket to be used, then inserting the fire paper solid roll core which is prepared in the first step in the stage 1) and is mixed with the activated carbon powder into the opening end, and sealing the joint of the opening end and the fire paper solid roll core by adopting paraffin to obtain the prefabricated;
and secondly, externally packaging and painting the prefabricated firecrackers obtained in the step one to obtain the required luminous flame long-acting self-combustion-supporting environment-friendly firecrackers.
In the manufacturing method of the environment-friendly firecracker with long-acting luminous flame and self-supporting function, the solid organic salt is organic matter containing potassium, copper or calcium, and the solid organic salt containing corresponding metal elements is selected according to the required flame color requirement.
The environment-friendly firecracker which is manufactured by the method and has long-acting self-combustion supporting of optical flame comprises five structural layers from outside to inside, wherein the five structural layers are respectively a fixed structure, an air film layer, an initial combustion layer, a sealing layer and a high-pressure explosion layer; the fixed structure is specifically an EAA grid layer copolymerized by ethylene and acrylic acid according to the mass ratio of 2:3, and the grid layer is specifically a basket with grid gaps of 1mm-1.5mm and fixed on the outer surface of the air film layer; the air film layer is specifically 5-ethylidene-2-norbornene, ethylene and propylene according to the mass ratio of 1: 10: 9 copolymerized non-vulcanized ethylene propylene diene monomer rubber film; the initial combustion layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed layer mixed with the solid organic salt after the atmospheric pressure is 1.1 to 1.2 times of the atmospheric pressure; the sealing layer is specifically divided into three parts, the three parts are physically combined with each other, the three parts are specifically a reinforcement, a stabilizer and a degradation promoter, and the three parts are mixed according to the mass ratio of 8: 1.8:0.2, namely obtaining a sealing layer, wherein the reinforcement is EAA copolymerized by ethylene and acrylic acid according to the mass ratio of 7:3, and the stabilizer is specifically 5-ethylidene-2-norbornene, ethylene and propylene according to the mass ratio of 1: 10: 9 copolymerization non-vulcanized ethylene propylene diene monomer, wherein the degradation promoter is sodium peroxide powder; the high-pressure bursting layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed gas layer mixed with the solid organic salt after 7-8 times of atmospheric pressure.
In the environment-friendly firecracker with long-acting luminous flame and self-supporting function, the solid organic salt is organic matter containing potassium, copper or calcium, and the solid organic salt containing corresponding metal elements is selected according to the required flame color requirement.
Compared with the prior art, the invention has the following advantages due to the adoption of the technical scheme: (1) different from another patent applied at the same time, the invention conception of the invention changes the easy degradation of residues into more complete combustion of solidified organic matters, obtains longer combustion duration and longer optical flame tailing, absorbs the carbon dioxide regasified by combustion to release oxygen through sodium peroxide to promote combustion, and simultaneously, the solid organic matters used by the invention which are not inflammable are continuously combusted in the process of being burst and scattered by air pressure due to the continuous supply of the oxygen, thereby reducing the residues on the ground and simultaneously prolonging the combustion time, and obtaining the longer optical flame tailing by utilizing the yellow optical flame of sodium, so that the combustion effect is more excellent. (2) The invention adopts the structure of imitating the proto-firecracker, improves the firecracker structure, replaces raw materials, replaces a loose firecracker driving mode and the like on the basis of the prior firecracker making original process, and obtains the environment-friendly firecracker which has no potential safety hazard which is difficult to overcome, is completely pollution-free and pollution-free, is the optimal replacement of the prior art and the conventional firecracker, and has extremely good market application prospect. (3) The ethylene propylene diene monomer rubber with the specific proportion is prepared from raw materials only containing C, H, O elements, and the ethylene propylene diene monomer rubber prepared according to the proportion provided by the invention has excellent elongation, ageing resistance and air tightness, and particularly omits a vulcanization process (all ethylene propylene diene monomers in the prior art are inevitably vulcanized for ensuring the mechanical property and the chemical stability), so that the ethylene propylene diene monomer rubber used by the invention has low strength, poor chemical stability, good toughness and good air tightness, is a special choice consistent with the technical purpose required by the invention (according to the actual action of the ethylene propylene diene monomer rubber in the invention, the ethylene propylene diene monomer rubber plays the roles of softening and buffering and low-pressure sealing, and even obviously plays the role in the ignition process, and is not beneficial to combustion if the chemical stability of the ethylene propylene diene monomer rubber is good, and unvulcanized ethylene propylene diene monomer belongs to a relatively flammable material), and further reduces production pollution and combustion pollution due to the fact that vulcanization is not carried out. (4) The material has different properties according to the proportion of ethylene and acrylic acid in the polymerization raw materials, wherein the material has high strength and good rigidity when the proportion of ethylene is high, but is brittle, easy to crush and pulverized, and has good toughness and high elasticity limit when the proportion of acrylic acid is high, but has poor rigidity and poor chemical stability. (5) The hot-alkali sealing method is characterized in that the hot-alkali sealing method is adopted, the principle that EAA meets the conditions of full melting and brittleness of hot alkali with high ethylene proportion is utilized, holes left by fine-hole hollow needles are sealed, meanwhile, the sealing strength is enhanced by performing brittle hardening on the holes to make up for the loss in volume, the sealing effect is simple and easy to realize, the sealing effect is quite excellent due to the fact that the liquidity of liquid and the filling capacity under high pressure are fully utilized, and due to the fact that the high-pressure bursting layer of the core part and the sealing layer of the core part are good in consistency structure, the method can completely realize batch transportation of the parts after the off-site technological production as accessories and just performs the batch transportation with simple processes of other parts in a row mode, greatly simplifies the production flow, reduces potential safety hazards, simultaneously reduces the production. (6) Directly combine methane and oxygen, utilized the wide source of methane, simultaneously chemical properties extremely stable characteristic under the normal temperature, and set up 1 with the volume ratio of oxygen: 1, because the solidified sodium peroxide powder in the sealing layer can absorb carbon dioxide of a combustion product to continuously release and oxidize after initial combustion is sufficient, so that more combustion raw material methane can be obtained according to the proportion, the combustion is more sufficient, and because the combustible heat of gasified methane is not high (the mole number is low, 1/1000 of liquefied gas with the same volume), the gasified methane belongs to gas fuel, and the volume number of combustion generated gas and the volume number of raw gas are not changed under the condition of sufficient combustion (CH4+2O2 is CO2+2H2O), even if the gas pressure is 7-8 times that of the invention, the gas volume is only expanded by 7-8 times, the space ratio is low, so the danger is low (far lower than that 280 liters of gas is generated when every 4 grams of black powder are combusted, the volume can be expanded by nearly ten thousand times), and even if the methane is in a pure oxygen environment, the ignition temperature is not lower than 350 ℃, therefore, the safety is extremely good under the conventional condition, which is far higher than 70 ℃ of black powder adopted by the conventional firecrackers or 40 ℃ of phosphorus ignition; on the other hand, the problems of dielectric safety and production threshold of the electronic firecracker can be solved. (7) The invention reasonably utilizes the intrinsic characteristics and the performance of the material, and utilizes the characteristics of EAA in ethylene: acrylic acid 7:3 the principle of tensile strength of about 20MPa (200 times atmospheric pressure) is airtight and combustible mixture without combustion improver with certain atmospheric pressure, and the chemical stability of the mixture is reduced by using unvulcanized ethylene propylene diene monomer rubber and sodium peroxide powder, so that the mixture is more combustible, and meanwhile, the principle that the sodium peroxide powder absorbs carbon dioxide and is converted into oxygen is used for ensuring that the firecracker is more fully combusted when being set off, and residues after combustion are less (the combusted part is decomposed into carbon dioxide and water), and meanwhile, the organic matter is not easy to be pulverized into smoke to pollute the environment when being combusted, so the environment-friendly property is excellent. (8) The fire paper is inflammable but can be burnt out quickly and can be used as a fire fuse, the activated carbon is inflammable and has strong heat conductivity, the high temperature of the fire paper combustion can be conducted into the initial combustion layer, meanwhile, the high temperature of the fire paper combustion can be continuously used as a heat source to initiate new combustion in a spark form to promote the more sufficient combustion, then the initial combustion layer can be violently combusted due to the self-contained combustion improver (oxidation), the primary injection and high temperature are generated, the sealing layer is melted and combusted, the high-pressure burst gas in the sealing layer is released, the secondary violent combustion and high-pressure gas explosion are carried out, the burst layers are rich, and the acousto-. (9) The burst driving of the invention mainly comprises gas expansion and original air pressure injection generated by heat energy, the source of the color light is the natural flame color of metal ions in organic salt, the firing effect is the same as that of the conventional firecrackers but not the simulated sound color of the electronic firecrackers, the invention has more atmosphere and safety which is far higher than that of the conventional firecrackers and the electronic firecrackers (mainly the structural requirement of electric shock resistance, the electric clearance, the creepage distance, the electric strength, the power connection, the external flexible wire, the plug type size and the like). Therefore, the invention has the characteristics of good bursting effect, green and pollution-free raw materials, long-acting light flame, self-supporting combustion and harmless burning substances.
Detailed Description
Example 1:
an environment-friendly firecracker with long-acting light flame and self-combustion supporting comprises five structural layers from outside to inside, wherein the five structural layers are respectively a fixed structure, an air film layer, an initial combustion layer, a sealing layer and a high-pressure explosion layer; the fixed structure is specifically an EAA grid layer copolymerized by ethylene and acrylic acid according to the mass ratio of 2:3, and the grid layer is specifically a basket with grid gaps of 1.5mm and fixed on the outer surface of the air film layer; the air film layer is specifically 5-ethylidene-2-norbornene, ethylene and propylene according to the mass ratio of 1: 10: 9 copolymerized non-vulcanized ethylene propylene diene monomer rubber film; the initial combustion layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed layer mixed with solid organic salt sodium acrylate, calcium acrylate and methyl potassium after the atmospheric pressure is 1.1 times of the atmospheric pressure; the sealing layer is specifically divided into three parts, the three parts are physically combined with each other, the three parts are specifically a reinforcement, a stabilizer and a degradation promoter, and the three parts are mixed according to the mass ratio of 8: 1.8:0.2, namely obtaining a sealing layer, wherein the reinforcement is EAA copolymerized by ethylene and acrylic acid according to the mass ratio of 7:3, and the stabilizer is specifically 5-ethylidene-2-norbornene, ethylene and propylene according to the mass ratio of 1: 10: 9 copolymerization non-vulcanized ethylene propylene diene monomer, wherein the degradation promoter is sodium peroxide powder; the high-pressure bursting layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed gas layer mixed with solid organic salts of sodium acrylate, calcium acrylate and methyl potassium after 7 times of atmospheric pressure.
The manufacturing method of the environment-friendly firecracker with long-acting luminous flame and self-combustion supporting comprises the following steps:
1) raw material preparation
Preparing sufficient methane, oxygen, 5-ethylidene-2-norbornene, ethylene, propylene, acrylic acid and sodium peroxide powder, mixing and wrapping a fire paper solid core wrapped with activated carbon powder and paraffin;
2) manufacture of structures
Mixing 5-ethylidene-2-norbornene, ethylene and propylene according to a mass ratio of 1: 10: 9 polymerizing, and reserving for later use under the condition of no vulcanization to obtain the later-used non-vulcanized ethylene propylene diene monomer;
polymerizing ethylene and acrylic acid according to the mass ratio of 2:3, extruding the ethylene and the acrylic acid into EAA wires with the diameter of 1.5mm, and weaving the obtained EAA wires into a basket structure with the grid clearance of 1.5mm according to the external dimension of the required firecrackers to obtain a basket for standby;
thirdly, polymerizing ethylene and acrylic acid into EAA according to the mass ratio of 7:3, mixing the non-vulcanized ethylene propylene diene monomer prepared in the step I and the sodium peroxide powder prepared in the step 1) into the molten pool and uniformly stirring when the EAA is in a molten pool state, wherein the mixing ratio is 8/1.8/0.2 according to the mass ratio of the EAA to the non-vulcanized ethylene propylene diene monomer/the sodium peroxide powder; the molten pool after even stirring is injected into a hollow mould shell, and the shape volume of the hollow mould shell is 1/2 of the shape volume of the needed firecrackers;
mixing methane and oxygen according to the weight ratio of 1: 1, and then mixing with sodium acrylate, calcium acrylate and methyl potassium accounting for 0.1 percent of the gas mass in a mass ratio of 1: 1: mixing the solid organic salt powder in the proportion of 1, and injecting the mixture into a gas transmission device provided with a gas pressure detection device to be used as a raw material A; taking 50% by mass of potassium hydroxide hydrothermal solution as a raw material B, wherein the hydrothermal solution is specifically an aqueous solution at the temperature of 80 ℃;
pumping air in the hollow mould shell obtained in the step III by using a needle type injector in a vacuum environment, injecting the raw material A obtained in the step IV into the hollow mould shell by using an air conveying device provided with an air pressure detection device through a thin-diameter hollow needle with the aperture of 0.3mm until the air pressure in the hollow mould shell is increased to 7 times of atmospheric pressure, slowly withdrawing the thin-diameter hollow needle, slowly dripping the raw material B obtained in the step IV when the needle point of the thin-diameter hollow needle is withdrawn to be in contact with an entity in the hollow mould shell, sealing the needle hole by dissolving and hardening the needle hole to obtain a sealing layer composite high-pressure bursting layer for later use;
sixthly, injecting the non-vulcanized ethylene propylene diene monomer rubber to form a balloon-shaped hollow single-side opening film which is adaptive to the inner wall of the basket to be used obtained in the step two, and obtaining a film layer to be used;
3) manufacture of environmental protection firecrackers
Placing the composite high-pressure burst layer of the sealing layer to be used obtained in the fifth step in the stage 2) into the gas film layer to be used obtained in the sixth step, sleeving the mesh basket to be used obtained in the second step on the outer surface of the gas film layer to be used, then injecting the raw material A obtained in the fourth step into the gas film layer to be used until the outer wall of the gas film layer to be used is tightly attached to the inner wall of the mesh basket to be used, then inserting the fire paper solid core which is prepared in the first step in the stage 1) and is mixed with the wrapped active carbon powder into the opening end, and sealing the joint of the opening end and the fire paper solid core by adopting paraffin to obtain the prefabricated firecrackers;
and secondly, externally packaging and painting the prefabricated firecrackers obtained in the step one to obtain the required luminous flame long-acting self-combustion-supporting environment-friendly firecrackers.
Note: the selectable range of the solid organic salt comprises organic matters containing potassium, copper and calcium, such as methyl potassium, copper pyridine acetate, calcium acrylate and the like, and the solid organic salt containing corresponding metal elements is selected according to the required flame color requirement, wherein the potassium is purple, the sodium is yellow (the invention is self-contained and does not need to be added through the solid organic salt), the copper is blue-green (the copper is shifted between blue and green according to different valence positions), and the calcium is red. (same below, not repeated)
Example 2
The whole is in accordance with example 1, with the difference that:
the initial combustion layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed layer mixed with solid organic salt sodium methyl, copper pyridine acetate and potassium acrylate, wherein the air pressure of the mixed layer is 1.2 times of the atmospheric pressure; the high-pressure bursting layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed gas layer mixed with solid organic salts of sodium methyl acetate, copper pyridine acetate and potassium acrylate after 8 times of atmospheric pressure.
The manufacturing method of the environment-friendly firecracker with long-acting luminous flame and self-combustion supporting comprises the following steps:
2) manufacture of structures
Polymerizing ethylene and acrylic acid according to the mass ratio of 2:3, extruding the ethylene and the acrylic acid into EAA wires with the diameter of 2mm, and weaving the obtained EAA wires into a basket structure with the grid clearance of 1mm according to the external dimension of the required firecrackers to obtain a basket for standby;
thirdly, polymerizing ethylene and acrylic acid into EAA according to the mass ratio of 7:3, mixing the non-vulcanized ethylene propylene diene monomer prepared in the step I and the sodium peroxide powder prepared in the step 1) into the molten pool and uniformly stirring when the EAA is in a molten pool state, wherein the mixing ratio is 8/1.8/0.2 according to the mass ratio of the EAA to the non-vulcanized ethylene propylene diene monomer/the sodium peroxide powder; the molten pool after even stirring is injected into a hollow mould shell, and the shape volume of the hollow mould shell is 2/3 of the shape volume of the needed firecrackers;
mixing methane and oxygen according to the weight ratio of 1: 1, and then mixing with sodium methyl, copper pyridine acetate and potassium acrylate, wherein the total mass of the sodium methyl, the copper pyridine acetate and the potassium acrylate accounts for 0.3 percent of the mass of the gas according to the mass ratio of 1: 1: mixing the solid organic salt powder in the proportion of 1, and injecting the mixture into a gas transmission device provided with a gas pressure detection device to be used as a raw material A; taking potassium hydroxide hydrothermal solution with the mass fraction of 60% as a raw material B, wherein the hydrothermal solution is specifically an aqueous solution with the temperature of 90 ℃;
pumping air in the hollow mould shell obtained in the step III by using a needle type injector in a vacuum environment, injecting the raw material A obtained in the step IV into the hollow mould shell by using an air conveying device provided with an air pressure detection device through a thin-diameter hollow needle with the aperture of 0.2mm until the air pressure in the hollow mould shell is increased to 8 times of atmospheric pressure, slowly withdrawing the thin-diameter hollow needle, starting to slowly drip the raw material B obtained in the step IV when the needle point of the thin-diameter hollow needle is withdrawn to be in contact with an entity in the hollow mould shell, carrying out solvent sealing on the needle hole and hardening the needle hole to obtain a sealing layer composite high-pressure bursting layer for standby;
3) manufacture of environmental protection firecrackers
Placing the composite high-pressure burst layer of the sealing layer to be used obtained in the fifth step in the stage 2) into the gas film layer to be used obtained in the sixth step, sleeving the mesh basket to be used obtained in the second step on the outer surface of the gas film layer to be used, then injecting the raw material A obtained in the fourth step into the gas film layer to be used, wherein the air pressure is 1.2 times of the atmospheric pressure, so that the outer wall of the gas film layer to be used is tightly attached to the inner wall of the mesh basket to be used, then inserting the fire paper solid roll core which is prepared in the first step in the stage 1) and is mixed with the active carbon powder to be wrapped into the opening end, and sealing the joint of the opening end and the fire paper solid roll core by adopting paraffin to;
the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A manufacturing method of environment-friendly firecrackers with long-acting luminous flame and self-combustion supporting is characterized by comprising the following steps:
1) raw material preparation
Preparing sufficient methane, oxygen, 5-ethylidene-2-norbornene, ethylene, propylene, acrylic acid and sodium peroxide powder, mixing and wrapping a fire paper solid core wrapped with activated carbon powder and paraffin;
2) manufacture of structures
Mixing 5-ethylidene-2-norbornene, ethylene and propylene according to a mass ratio of 1: 10: 9 polymerizing, and reserving for later use under the condition of no vulcanization to obtain the later-used non-vulcanized ethylene propylene diene monomer;
polymerizing ethylene and acrylic acid according to the mass ratio of 2:3, extruding the ethylene and the acrylic acid into EAA wires with the diameter of 1.5mm-2mm, and weaving the obtained EAA wires into a basket structure with the grid clearance of 1mm-1.5mm according to the external dimension of the required firecrackers to obtain a standby basket;
thirdly, polymerizing ethylene and acrylic acid into EAA according to the mass ratio of 7:3, mixing the non-vulcanized ethylene propylene diene monomer prepared in the step I and the sodium peroxide powder prepared in the step 1) into the molten pool and uniformly stirring when the EAA is in a molten pool state, wherein the mixing ratio is 8/1.8/0.2 according to the mass ratio of the EAA to the non-vulcanized ethylene propylene diene monomer/the sodium peroxide powder; the molten pool after even stirring is injected into a hollow mould shell, and the shape volume of the hollow mould shell is 1/2-2/3 of the shape volume of the needed firecrackers;
mixing methane and oxygen according to the weight ratio of 1: 1, mixing with solid organic salt powder with the total mass accounting for 0.1-0.3% of the gas mass, and injecting the mixture into a gas transmission device provided with a gas pressure detection device to serve as a raw material A; taking 50-60% by mass of potassium hydroxide hydrothermal solution as a raw material B, wherein the hydrothermal solution is specifically an aqueous solution at the temperature of 80-90 ℃;
fifthly, pumping out air in the hollow mould shell obtained in the step III by using a needle type injector in a vacuum environment, injecting the raw material A obtained in the step IV into the hollow mould shell through a thin-diameter hollow needle with the aperture of 0.2-0.3 mm by using an air conveying device provided with an air pressure detection device until the air pressure in the hollow mould shell is increased to 7-8 times of atmospheric pressure, slowly withdrawing the thin-diameter hollow needle, slowly dripping the raw material B obtained in the step IV when the needle point of the thin-diameter hollow needle is withdrawn to be in contact with an entity in the hollow mould shell, and carrying out solvent sealing on the needle hole and hardening the needle hole to obtain a sealing layer composite high-pressure bursting layer for standby;
sixthly, injecting the non-vulcanized ethylene propylene diene monomer rubber to form a balloon-shaped hollow single-side opening film which is adaptive to the inner wall of the basket to be used obtained in the step two, and obtaining a film layer to be used;
3) manufacture of environmental protection firecrackers
Placing the sealing layer composite high-pressure burst layer to be used obtained in the fifth step in the stage 2) into the gas film layer to be used obtained in the sixth step, sleeving the mesh basket to be used obtained in the second step on the outer surface of the gas film layer to be used, then injecting the raw material A obtained in the second step into the gas film layer to be used, wherein the air pressure is 1.1-1.2 times of the atmospheric pressure, tightly attaching the raw material A to the outer wall of the gas film layer to be used and the inner wall of the mesh basket to be used, then inserting the fire paper solid roll core which is prepared in the first step in the stage 1) and is mixed with the activated carbon powder into the opening end, and sealing the joint of the opening end and the fire paper solid roll core by adopting paraffin to obtain the prefabricated;
and secondly, externally packaging and painting the prefabricated firecrackers obtained in the step one to obtain the required luminous flame long-acting self-combustion-supporting environment-friendly firecrackers.
2. The manufacturing method of the environment-friendly firecracker with long-acting luminous flame and self-combustion supporting as claimed in claim 1, characterized in that: the solid organic salt is organic matter containing potassium, copper or calcium, and solid organic salt containing corresponding metal elements is selected according to required flame color requirements.
3. The light flame long-acting self-combustion-supporting environment-friendly firecracker manufactured by the method of claim 1 is characterized in that: the environment-friendly firecracker comprises five structural layers from outside to inside, wherein the five structural layers are respectively a fixed structure, an air film layer, an initial combustion layer, a sealing layer and a high-pressure explosion layer; the fixed structure is specifically an EAA grid layer copolymerized by ethylene and acrylic acid according to the mass ratio of 2:3, and the grid layer is specifically a basket with grid gaps of 1mm-1.5mm and fixed on the outer surface of the air film layer; the air film layer is specifically 5-ethylidene-2-norbornene, ethylene and propylene according to the mass ratio of 1: 10: 9 copolymerized non-vulcanized ethylene propylene diene monomer rubber film; the initial combustion layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed layer mixed with the solid organic salt after the atmospheric pressure is 1.1 to 1.2 times of the atmospheric pressure; the sealing layer is specifically divided into three parts, the three parts are physically combined with each other, the three parts are specifically a reinforcement, a stabilizer and a degradation promoter, and the three parts are mixed according to the mass ratio of 8: 1.8:0.2, namely obtaining a sealing layer, wherein the reinforcement is EAA copolymerized by ethylene and acrylic acid according to the mass ratio of 7:3, and the stabilizer is specifically 5-ethylidene-2-norbornene, ethylene and propylene according to the mass ratio of 1: 10: 9 copolymerization non-vulcanized ethylene propylene diene monomer, wherein the degradation promoter is sodium peroxide powder; the high-pressure bursting layer is formed by mixing methane and oxygen according to the ratio of 1: 1 to form a mixed gas layer mixed with the solid organic salt after 7-8 times of atmospheric pressure.
4. The light-flame long-acting self-combustion-supporting environment-friendly firecracker as claimed in claim 3, characterized in that: the solid organic salt is organic matter containing potassium, copper or calcium, and solid organic salt containing corresponding metal elements is selected according to required flame color requirements.
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| CN201810380749.1A CN108709464B (en) | 2018-04-25 | 2018-04-25 | Light flame long-acting self-combustion-supporting environment-friendly firecracker and manufacturing method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374499A (en) * | 2001-03-11 | 2002-10-16 | 宾攀 | Safe colour-light firecrackers and their making process and apparatus |
| JP2003226593A (en) * | 2002-02-04 | 2003-08-12 | Japan Carlit Co Ltd:The | Illuminant composition |
| CN101597195A (en) * | 2009-07-13 | 2009-12-09 | 北京理工大学 | A kind of composite oxidant that is used for fireworks and firecrackers and preparation method thereof |
| CN201449218U (en) * | 2009-06-15 | 2010-05-05 | 顾泽祥 | Environment-friendly serial saluting artillery |
| CN102506615A (en) * | 2011-11-03 | 2012-06-20 | 雍和平 | Safe color-light firecracker |
-
2018
- 2018-04-25 CN CN201810380749.1A patent/CN108709464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374499A (en) * | 2001-03-11 | 2002-10-16 | 宾攀 | Safe colour-light firecrackers and their making process and apparatus |
| JP2003226593A (en) * | 2002-02-04 | 2003-08-12 | Japan Carlit Co Ltd:The | Illuminant composition |
| CN201449218U (en) * | 2009-06-15 | 2010-05-05 | 顾泽祥 | Environment-friendly serial saluting artillery |
| CN101597195A (en) * | 2009-07-13 | 2009-12-09 | 北京理工大学 | A kind of composite oxidant that is used for fireworks and firecrackers and preparation method thereof |
| CN102506615A (en) * | 2011-11-03 | 2012-06-20 | 雍和平 | Safe color-light firecracker |
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