CN114436723A - Safe gunpowder and preparation method thereof - Google Patents
Safe gunpowder and preparation method thereof Download PDFInfo
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- CN114436723A CN114436723A CN202210017951.4A CN202210017951A CN114436723A CN 114436723 A CN114436723 A CN 114436723A CN 202210017951 A CN202210017951 A CN 202210017951A CN 114436723 A CN114436723 A CN 114436723A
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- reducing agent
- safety
- gunpowder
- powder
- adhesive
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- 239000003721 gunpowder Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 48
- 239000007800 oxidant agent Substances 0.000 claims abstract description 41
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 230000001590 oxidative effect Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 230000018044 dehydration Effects 0.000 claims abstract description 3
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 23
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical group [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000003755 preservative agent Substances 0.000 claims description 11
- 230000002335 preservative effect Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 235000010333 potassium nitrate Nutrition 0.000 claims description 9
- 239000004323 potassium nitrate Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000002585 base Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical group [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 4
- 235000010234 sodium benzoate Nutrition 0.000 claims description 4
- 239000004299 sodium benzoate Substances 0.000 claims description 4
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000665 guar gum Substances 0.000 claims description 3
- 235000010417 guar gum Nutrition 0.000 claims description 3
- 229960002154 guar gum Drugs 0.000 claims description 3
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 3
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 3
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 3
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 3
- 229940071676 hydroxypropylcellulose Drugs 0.000 claims description 3
- 239000012778 molding material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000230 xanthan gum Substances 0.000 claims description 3
- 229920001285 xanthan gum Polymers 0.000 claims description 3
- 235000010493 xanthan gum Nutrition 0.000 claims description 3
- 229940082509 xanthan gum Drugs 0.000 claims description 3
- 229920013818 hydroxypropyl guar gum Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 2
- 231100000357 carcinogen Toxicity 0.000 description 2
- 239000003183 carcinogenic agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000015 trinitrotoluene Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 206010043275 Teratogenicity Diseases 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002949 hemolytic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000211 teratogenicity Toxicity 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/02—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0008—Compounding the ingredient
- C06B21/0025—Compounding the ingredient the ingredient being a polymer bonded explosive or thermic component
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a safe gunpowder and a preparation method thereof, wherein the safe gunpowder is characterized by comprising the following steps: a powdered reducing agent, a powdered oxidizing agent and a powdered binder; the mass fraction of the oxidant in the safe gunpowder is 65-70%; the mass fraction of the adhesive in the safety gunpowder is 10-16%; the mass ratio of the reducing agent to the oxidizing agent is 1: 2; the adhesive has hydrophilicity, and is in a viscous period with viscosity after water absorption and in a stable curing period without viscosity after dehydration and drying. The safe gunpowder disclosed by the invention is low in preparation cost and better in service performance.
Description
Technical Field
The invention relates to a safe gunpowder and a preparation method thereof.
Background
Gunpowder, also called black powder, is one of four inventions in China, the traditional formula of the gunpowder is one of the two sulphur charcoal with one nitrate, two sulphur charcoal and charcoal, which is one of the important propellant powder, the gunpowder is developed to the present, though the gunpowder is replaced by the smokeless gunpowder, trinitrotoluene and other explosives, but the gunpowder is widely used for producing fireworks, firecrackers, model rockets and antique forecourt gunpowder, and the main chemical components are basically unchanged.
It is known that, gunpowder contains sulfur, nitrate and even metal, whether traditional black gunpowder or modern smokeless gunpowder, double-base gunpowder and TNT, the explosion of gunpowder, the explosion of fireworks and crackers, directional blasting and the blasting of mineral mining are all chemical explosions, and a large amount of toxic residues, dust, smoke, sulfur dioxide, oxynitride and the like are generated, so that the gunpowder has strong irritation, corrosivity, asphyxia, narcosity, hemolytic property, teratogenicity and carcinogenicity, can seriously pollute the atmosphere, water quality and the environment for human survival, and for example, in a carcinogen list published by international cancer research institution of world health organization in 2017, 27 months and 10, nitrite is listed in a 2A carcinogen list.
In addition, black powder is a mechanical mixture that is manufactured by physical machining in equipment. The main process is that the potassium nitrate, sulfur and charcoal are mixed by ball mill, pressed, mechanically crushed, granulated, sieved, polished and packed. The potassium nitrate, the sulfur and the charcoal are synthesized in proportion, so that all properties of gunpowder are achieved, and explosion accidents are easy to happen due to the influence of factors such as impact, friction, temperature rise and the like in the mechanical production process.
With the progress of society and the rapid development of science and technology, the problems of safety, environmental protection and no toxicity in gunpowder production, fireworks and crackers are fundamentally solved.
Disclosure of Invention
The invention aims to provide a safe gunpowder and a preparation method thereof.
In order to achieve the above object, the present invention provides a safety powder, comprising: a powdered reducing agent, a powdered oxidizing agent and a powdered binder;
the mass fraction of the oxidant in the safety gunpowder is 65-70%;
the mass fraction of the adhesive in the safety gunpowder is 10-16%;
the mass ratio of the reducing agent to the oxidizing agent is 1: 2;
the adhesive has hydrophilicity, and is in a viscous period with viscosity after water absorption and in a stable curing period without viscosity after dehydration and drying.
According to one aspect of the invention, the particle size of the reducing agent is larger than the particle size of the oxidizing agent.
According to one aspect of the invention, the reducing agent has a particle size of 80 to 120 mesh;
the particle size of the oxidant is 100-150 meshes.
According to an aspect of the invention, the particle size of the binder is smaller than the particle size of the oxidant.
According to one aspect of the invention, the binder has a particle size of at least 200 mesh.
According to one aspect of the invention, the reducing agent comprises: crop powder and preservative;
the ratio of the preservative in the reducing agent is less than or equal to 10%.
According to an aspect of the invention, the reducing agent further comprises: an industrial base;
the ratio of the industrial alkali in the reducing agent is more than 50%.
According to one aspect of the invention, the crop powder is at least one of crop straw powder and corncob powder;
the oxidant is potassium nitrate;
the adhesive is one of hydroxymethyl cellulose, hydroxypropyl cellulose, guar gum and xanthan gum;
the preservative is sodium benzoate.
In order to achieve the above object, the present invention provides a method for preparing the safety powder, comprising:
s1, mixing a reducing agent, an oxidizing agent and an adhesive according to a ratio, spraying liquid into the mixture and stirring;
s2, carrying out extrusion forming on the mixed material prepared in the step S1 to obtain a formed material;
and S3, exposing the molding material in air for drying treatment, and obtaining a finished product.
According to one aspect of the invention, in the step of spraying and stirring the liquid into the mixture in the step of S1, the spraying amount of the liquid is less than 30% of the mass of the mixture, and the liquid is water or an inorganic solution;
in step S3, the molded material is dried, and a finished product is obtained, wherein the water content of the finished product is 1% to 2%.
According to one scheme of the invention, the safe gunpowder disclosed by the invention is low in preparation cost and better in service performance.
According to one scheme of the invention, the safety gunpowder can be prepared by a wet method in the preparation process, so that the preparation process is safer.
According to one scheme of the invention, the performance of the whole safety powder can be effectively improved by adopting a higher content of the oxidant. In addition, the oxidant can be filled around the reducing agent more fully, so that the safety gunpowder can burn more fully and quickly after ignition.
According to one scheme of the invention, the particle size of the adhesive is set to be minimum, so that the distribution uniformity of the adhesive in the safety gunpowder can be effectively improved, and the strength and the stability of the safety gunpowder after molding are higher. In addition, by setting the binder in the above particle size range, the viscosity of the product can be more sufficiently exhibited when the product is pressed, and the gap between the oxidizing agent and the reducing agent can be sufficiently filled, so that the strength of the product can be more excellent.
Detailed Description
The present invention is described in detail below with reference to specific embodiments, which cannot be described in detail herein, but the embodiments of the present invention are not limited to the following embodiments.
According to one embodiment of the invention, a safety powder according to the invention comprises: a powdered reducing agent, a powdered oxidizing agent and a powdered binder. In the embodiment, the mass fraction of the oxidant in the safety powder is 65-70%; the mass fraction of the adhesive in the safe gunpowder is 10-16%; the mass ratio of the reducing agent to the oxidizing agent is 1: 2. In the present embodiment, the adhesive has hydrophilicity, and is in a viscous period of having viscosity after absorbing water, and in a stable curing period of having no viscosity after drying out of water.
According to the invention, the adhesive is added into the gunpowder, so that the corresponding manufacturing and molding can be carried out according to the application scene of the gunpowder, the requirement of integral installation can be further met, and the use safety of the invention is ensured. In addition, in the scheme, the wet method manufacturing in the forming process can be realized by adopting the adhesive with hydrophilicity, and the adhesive can show viscosity by adding a proper amount of water, so that the oxidant and the reducing agent are tightly adhered to each other under the action of the adhesive, thereby being beneficial to processing and forming, greatly improving the processing safety due to the action of water, and effectively avoiding sparks, static electricity and the like generated in the manufacturing process. In addition, the adhesive with hydrophilicity can adsorb moisture in the oxidant and the reducing agent after molding and drying, so that the adhesive not only can maintain the bonding strength, but also can effectively inhibit the moisture in the oxidant and the reducing agent, and is beneficial to ensuring the triggering and burning of gunpowder.
According to one embodiment of the invention, the particle size of the reducing agent is larger than the particle size of the oxidizing agent. In the present embodiment, the particle size of the reducing agent is 80 to 120 mesh; the particle size of the oxidant is 100-150 meshes.
By adopting the oxidant with higher content, the performance of the whole safety gunpowder can be effectively improved. In addition, the oxidant can be filled around the reducing agent more fully, so that the safety gunpowder can burn more fully and quickly after ignition.
According to one embodiment of the invention, the particle size of the binder is smaller than the particle size of the oxidizing agent. In the present embodiment, the particle size of the adhesive is at least 200 mesh.
Through the arrangement, the particle size of the adhesive is set to be minimum, the distribution uniformity of the adhesive in the safety gunpowder can be effectively improved, and the strength and the stability of the safety gunpowder after molding are higher. In addition, by setting the binder in the above particle size range, the viscosity of the product can be more sufficiently exhibited when the product is pressed, and the gap between the oxidizing agent and the reducing agent can be sufficiently filled, so that the strength of the product can be more excellent.
According to one embodiment of the invention, the reducing agent comprises: agricultural crop powder and preservative. In this embodiment, the preservative is present in the reducing agent in an amount of 10% or less.
Through the arrangement, the mode of adding the preservative into the reducing agent effectively avoids the decomposition failure of the reducing agent by microorganisms, thereby being beneficial to ensuring the long-term use performance of the invention. In addition, the antiseptic is arranged in the range, so that the service life of the gunpowder is ensured by less antiseptic, and meanwhile, the preparation cost of the gunpowder is effectively reduced.
According to one embodiment of the invention, the preservative is sodium benzoate.
By adopting the sodium benzoate, the corrosion resistance can be achieved, the sodium content in the reducing agent can be increased through the preservative, and the explosion performance of the reaction process of the oxidizing agent and the reducing agent is improved.
According to an embodiment of the invention, the reducing agent further comprises: an industrial base. In the present embodiment, the ratio of the industrial base in the reducing agent is more than 50% (for example, the addition amount thereof may be 55%, 60%, or the like).
By increasing the amount of industrial base (i.e., sodium carbonate) in the reducing agent, the sodium content of the reducing agent is further increased, which is beneficial to further improving the explosive performance of the reaction process of the oxidizing agent and the reducing agent in the present invention. In addition, because the manufacturing cost of the industrial alkali is low, the production cost of the invention can be further reduced while the content of sodium in the reducing agent of the invention is increased. In addition, the industrial alkali has more stable performance, so that the service life of the invention is favorably ensured under the condition that the addition amount of the industrial alkali is relatively high.
According to one embodiment of the present invention, the crop powder is at least one of crop straw powder and corn cob powder.
Through the arrangement, when the crop straws and/or corncobs are adopted in the safe gunpowder, the reducing agent can be ignited more easily by the oxidant due to the fact that the sugar content of the reducing agent is higher than that of the common reducing agent, and a large amount of gas is generated, so that the using performance of the safe gunpowder is better. In addition, by selecting the crop straws and/or the corncobs, the material is simple and convenient to obtain, the cost is low, and the problem of environmental pollution caused by incineration treatment of the crop straws and/or the corncobs is effectively solved.
According to one embodiment of the invention, the oxidizing agent in the present invention is potassium nitrate.
By adopting potassium nitrate as an oxidant, the hygroscopicity of the potassium nitrate is low, and further, by adding a hydrophilic adhesive and simultaneously adopting potassium nitrate with lower hygroscopicity, the influence of the hydrophilicity of the adhesive is effectively avoided, so that the reaction process of the potassium nitrate-based catalyst is quicker.
According to one embodiment of the invention, the binder is one of hydroxymethyl cellulose, hydroxypropyl cellulose, guar gum, xanthan gum.
Through adopting above-mentioned adhesive, it is when meeting water, when can produce viscidity, still has the inflation effect, and then is beneficial to guaranteeing intensive mixing and the adhesion with other materials.
According to an embodiment of the invention, the preparation method of the safety powder comprises the following steps:
s1, mixing a reducing agent, an oxidizing agent and an adhesive according to a ratio, spraying liquid into the mixture and stirring;
s2, carrying out extrusion forming on the mixed material prepared in the step S1 to obtain a formed material;
and S3, exposing the formed material in air for drying treatment, and obtaining a finished product.
According to one embodiment of the present invention, in the step of spraying the liquid into the mixture and stirring in step S1, the spraying amount of the liquid is less than 30% of the mass of the mixture, and the liquid is water or an inorganic solution.
According to an embodiment of the present invention, in the step of drying the molding material in step S3, and obtaining the finished product, the moisture content of the finished product is 1% to 2%.
By controlling the water content of the finished product in the range, the influence of excessive water on the performance of the finished product is effectively avoided, and meanwhile, the stability of the adhesive in the finished product is ensured by controlling the finished product to have lower water content, so that the reducing agent and the oxidizing agent are kept compact under the action of the adhesive, and excellent combustion efficiency and higher reaction efficiency are achieved.
The foregoing is merely exemplary of particular aspects of the present invention and devices and structures not specifically described herein are understood to be those of ordinary skill in the art and are intended to be implemented in such conventional ways.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A safety powder, comprising: a powdered reducing agent, a powdered oxidizing agent and a powdered binder;
the mass fraction of the oxidant in the safety gunpowder is 65-70%;
the mass fraction of the adhesive in the safety gunpowder is 10-16%;
the mass ratio of the reducing agent to the oxidizing agent is 1: 2;
the adhesive has hydrophilicity, and is in a viscous period with viscosity after water absorption and in a stable curing period without viscosity after dehydration and drying.
2. A safety powder according to claim 1, wherein the particle size of the reducing agent is larger than that of the oxidizing agent.
3. The safety powder according to claim 2, wherein the reducing agent has a particle size of 80 to 120 mesh;
the particle size of the oxidant is 100-150 meshes.
4. A safety powder according to claim 3, wherein the binder has a particle size smaller than that of the oxidizer.
5. A safety powder according to claim 4, wherein the binder has a particle size of at least 200 mesh.
6. A safety powder according to any one of claims 1 to 5, characterised in that the reducing agent comprises: crop powder and preservative;
the ratio of the preservative in the reducing agent is less than or equal to 10%.
7. The safety powder according to claim 6, characterized in that said reducing agent further comprises: an industrial base;
the ratio of the industrial alkali in the reducing agent is more than 50%.
8. The safety powder according to claim 7, wherein the crop powder is at least one of crop straw powder and corncob powder;
the oxidant is potassium nitrate;
the adhesive is one of hydroxymethyl cellulose, hydroxypropyl cellulose, guar gum and xanthan gum;
the preservative is sodium benzoate.
9. A method of preparing a safety powder for use as claimed in any one of claims 1 to 8, comprising:
s1, mixing a reducing agent, an oxidizing agent and an adhesive according to a ratio, spraying liquid into the mixture and stirring;
s2, carrying out extrusion forming on the mixed material prepared in the step S1 to obtain a formed material;
and S3, exposing the molding material in air for drying treatment, and obtaining a finished product.
10. The method according to claim 9, wherein in the step of spraying a liquid into the mixture and stirring in step S1, the spraying amount of the liquid is less than 30% of the mass of the mixture, and the liquid is water or an inorganic substance solution;
in step S3, the molded material is dried, and a finished product is obtained, wherein the water content of the finished product is 1% to 2%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210017951.4A CN114436723A (en) | 2022-01-07 | 2022-01-07 | Safe gunpowder and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210017951.4A CN114436723A (en) | 2022-01-07 | 2022-01-07 | Safe gunpowder and preparation method thereof |
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| CN114436723A true CN114436723A (en) | 2022-05-06 |
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| CN102173973A (en) * | 2010-12-31 | 2011-09-07 | 上海东方久乐汽车安全气囊有限公司 | Igniter for gas generator of safety gasbag and preparation method thereof |
| CN103214322A (en) * | 2013-05-15 | 2013-07-24 | 浏阳市合力高科发展有限公司 | Sulfur-smoke-free powder composition and preparation method thereof |
| CN106673929A (en) * | 2016-12-13 | 2017-05-17 | 杨厚煌 | Organic carbon powder explosive reducing agent |
| CN108456123A (en) * | 2018-02-09 | 2018-08-28 | 张晓成 | High-energy agent preparation method, high-energy agent and pyrotechnic composition and its firecracker Safe production method |
| CN110343022A (en) * | 2019-08-15 | 2019-10-18 | 赵宏 | A kind of fireworks and firecrackers medication of safety and environmental protection and preparation method thereof |
| CN110937966A (en) * | 2019-11-27 | 2020-03-31 | 江西吉润花炮新材料科技有限公司 | Multifunctional smokeless and sulfur-free firecracker propellant and preparation method thereof |
| CN111689823A (en) * | 2020-06-16 | 2020-09-22 | 湖南坤普科技有限公司 | Micro-smoke lead formula and preparation process thereof |
| CN113149796A (en) * | 2021-05-10 | 2021-07-23 | 雷存炬 | Integrated nail propellant and preparation method thereof |
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