CN111533630A - Micro-smoke cooling firework containing light beads and sounders - Google Patents
Micro-smoke cooling firework containing light beads and sounders Download PDFInfo
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- CN111533630A CN111533630A CN202010548356.4A CN202010548356A CN111533630A CN 111533630 A CN111533630 A CN 111533630A CN 202010548356 A CN202010548356 A CN 202010548356A CN 111533630 A CN111533630 A CN 111533630A
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/08—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound
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- 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
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- 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
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
- C06B29/22—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate the salt being ammonium perchlorate
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/02—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
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Abstract
A micro smoke-cooling firework containing light beads and sounders comprises the following components in percentage by weight: 30-90% of energetic substance, 5-50% of oxidant, 0-30% of metal powder, 0-20% of flame reaction material, 0-20% of lead-free catalyst and 0-10% of adhesive, wherein all percentages are mass percentages. Compared with the prior art, the micro-smoke cold firework has the advantages that the formula and the manufacturing process of the light beads and the sounding parts are changed, so that the light beads and the sounding parts can be successfully and fully ignited by the powder of the micro-smoke cold firework based on the smokeless powder, the photoluminescent material is not required to be added, the photochromic effect which can be achieved by the traditional smoke fireworks can be generated, the cost of the fireworks is controlled within the market acceptable range, and the application and the popularization are facilitated.
Description
Technical Field
The invention relates to the technical field of fireworks and crackers, in particular to a micro-smoke cold firework containing light beads and sounders.
Background
The light beads, also called bright beads, emit bright colored rays after being ignited, and each light bead appears as a moving point light source in the night sky. Because the light beads are buried in the gunpowder at different positions, the space distance for pushing the light beads away after the fireworks are exploded or erupted is different, and the previously designed firework shape can be seen in the air after the light beads are ignited. The firework with colorful and rich levels is formed by different colors and different spatial positions. The sounders, also called sound beads, mainly produce sound effect after being ignited, such as flood explosion sound, and some sounders also produce dazzling white flash effect. The micro-smoke cold fireworks are firework products produced by utilizing environment-friendly materials, only a small amount of smoke is generated during actual setting off, and the temperature of a luminous substance is not high, so that the firework does not hurt human bodies even if the luminous substance is carelessly contacted with the skin of people, has the characteristics of safety and environmental protection, and is suitable for indoor and outdoor setting off, such as large-scale firework evening parties, wedding ceremonies, stage modeling and the like. The light beads or the sound seeds are added into the micro-smoke cold fireworks, so that the cold fireworks can generate richer light color effects.
However, the traditional light bead and sounder are limited by the formula of the ignition layer on the surface, the formula is the traditional design of the firework with smoke and cold (namely, the firework based on black powder and other materials), so when the light bead and sounder are put into smokeless powder (the firework with micro smoke and cold based on nitrocellulose, nitrocotton, nitrobamboo, single-base powder, double-base powder and other materials), insufficient ignition occurs, and the smokeless powder cannot completely ignite the light bead and sounder.
In addition, in order to reduce smoke generated after fireworks are ignited, a firework powder core formula formed by mixing nitrocellulose, magnesium-aluminum-cerium alloy, metal titanium and shellac according to a certain proportion is designed in the patent with the publication number of CN1059400A, and smokeless fireworks which are smokeless and have the characteristics of fireworks are realized, but the fireworks of the formula have single luminous color. Aiming at the defect of single luminous color, the patent with the publication number of CN103121886A adds a photoluminescent material, so that the colors of the micro smoke-cooled fireworks are rich and various, but the price of the photoluminescent material is higher than the market acceptable range, and the photoluminescent material cannot be widely popularized.
Therefore, a micro smoke cooling firework which can be fully ignited, has good light effect and low cost and contains light beads and sounders is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a micro smoke-cooling firework which can be fully ignited, has good light and color effect and low cost and contains light beads and sounds aiming at the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a micro smoke-cooling firework containing light beads and sounders comprises the following components in percentage by weight:
30 to 90 percent of energetic substance,
5 to 50 percent of oxidant,
0 to 30 percent of metal powder,
0 to 20 percent of flame reaction material,
0 to 20 percent of lead-free catalyst,
0 to 10 percent of adhesive,
all percentages are mass percentages.
Preferably, the energy-containing substance comprises nitrocellulose, single-base powder and double-base powder, and the energy-containing substance is a compound formed by nitric acid esterification of plant fiber and is C6H10O5、C6H9(NO2)O5、C6H8(NO2)2O5、C6H7(NO2)3O5The nitrogen content of the macromolecule formed by mixing the four basic rings depends on the mixing proportion of the four basic rings, and the nitrogen content of the energetic substance actually used in the micro-smoke cold fireworks is 11.0-12.5%.
Preferably, the oxidizer includes ammonium perchlorate, potassium nitrate, ammonium nitrate and potassium chlorate.
Preferably, the metal powder comprises one or a mixture of any more of titanium, iron, zirconium, aluminum, chromium and nickel in any proportion.
Preferably, the flame reaction material is metal powder capable of generating flame reaction, and comprises one or a mixture of any more of barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, rubidium, antimony, strontium and zinc, and the flame reaction material further comprises a compound of the metal powder.
Preferably, the lead-free catalyst includes bismuth carbonate, bismuth oxide, antimony oxide, zinc oxide, tin oxide, and manganese oxide.
Preferably, the adhesives include silicates, polyvinyl formaldehydes, polyvinyl acetates and co-emulsions, solvent-based rubbers, resins, EVA hot-melt types, cyanoacrylates, and waterborne pressure sensitive adhesives.
Compared with the prior art, the micro smoke-cooled firework containing the light beads and the sounders has the beneficial effects that: by changing the formula and the manufacturing process of the light bead and the sounder, the light bead and the sounder can be successfully and fully ignited by the micro smoke-cooled firework powder based on the smokeless powder, and the photochromic effect which can be achieved by the traditional firework can be generated without adding a photoluminescent material, so that the cost of the firework is controlled within the market acceptable range, and the firework is convenient to apply and popularize.
Detailed Description
The present invention will be described in further detail with reference to examples.
Firstly, the components of the micro smoke-cooling fireworks, the light beads and the sounder are described, and then the configuration process and the preparation process of the micro smoke-cooling fireworks containing the light beads and the sounder are described.
A micro smoke-cooling firework containing light beads and sounders comprises the following components in percentage by weight: 30-90% of energetic substance, 5-50% of oxidant, 0-30% of metal powder, 0-20% of flame reaction material, 0-20% of lead-free catalyst and 0-10% of adhesive, wherein all percentages are mass percentages.
The energy-containing substance stores chemical energy, and the energy-containing substance comprises but is not limited to nitrocellulose, nitrocotton, mono-base powder, di-base powder and other compounds formed by nitric acid esterification of plant fibers, wherein the compound is formed by C6H10O5、C6H9(NO2)O5、C6H8(NO2)2O5、C6H7(NO2)3O5The nitrogen content of the macromolecule formed by mixing the four basic rings depends on the mixing proportion of the four basic rings, and the nitrogen content of the energetic substance actually used in the micro-smoke cold fireworks is 11.0-12.5%.
The oxidant for cooling fireworks in the present invention includes but is not limited to: ammonium perchlorate, potassium nitrate, ammonium nitrate, potassium chlorate and the like. The metal powder and the oxidant generate oxidation-reduction reaction to emit bright light and release heat. Specifically, the metal powder used for the cold firework includes, but is not limited to: one or a mixture of any more of titanium, iron, zirconium, aluminum, chromium and nickel in any proportion.
In addition, the flame reaction material plays a role of making the fireworks more colorful, wherein the metal powder capable of participating in the flame reaction includes but is not limited to: barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, rubidium, antimony, strontium, zinc, and the like, and also compounds containing the above metals, such as cryolite, sodium fluoride, sodium fluorosilicate, sodium bicarbonate, sodium oxalate, borax, strontium carbonate, strontium oxalate, strontium nitrate, strontium sulfate, barium nitrate, barium carbonate, barium oxide, barium chloride, barium perchlorate, copper oxide, basic copper carbonate (malachite), cuprous sulfide, and the like. Meanwhile, the flame reaction materials can be mixed and configured, and new colors can be generated by mixing two or more colors.
The lead-free catalyst plays a role in adjusting the combustion property of the phonons and generating explosion waves. Specifically, the lead-free catalyst includes: bismuth carbonate, bismuth oxide, antimony oxide (e.g., antimony trioxide, antimony pentoxide), zinc oxide, tin oxide (e.g., tin monoxide, tin dioxide), manganese oxide (e.g., manganese monoxide, manganese dioxide, trimanganese tetroxide), and the like.
The adhesive fixes the relative positions of various material particles, so that relative displacement does not occur in the processes of transportation and storage, and the uniformity of the medicine core during burning is ensured to be the same as that during production. Binders that may be used include, but are not limited to: silicates, polyvinyl formaldehydes, polyvinyl acetate and copolymer emulsions, solvent-based rubbers, resins, EVA hot-melt types, cyanoacrylates, water-based pressure-sensitive adhesives, and the like.
The preparation process of the micro smoke-cooled firework containing the light beads and the sounder comprises the following steps:
(1) the preparation process of the spraying decoration flux core of the micro smoke cooling firework comprises the following steps: mixing oxidant, nitrocellulose, metal powder, colorant and adhesive in certain proportion, sieving, and removing oversize particles;
(2) the preparation process of the optical bead comprises the following steps:
a) preparation of effect core material: mixing 30-90% of nitrocellulose, 5-50% of oxidant, 0-30% of metal powder and colorant according to a certain proportion, sieving, and removing oversize particles;
b) dissolving the uniformly mixed effective medicine core materials in an organic solvent, wherein the organic solvent is selected from one or more of the following solvents for cross combination: methanol, ethanol, isopropanol, n-butanol, methyl ether, ethyl ether, methyl ethyl ether, acetone, ethyl acetate, and butyl acetate;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into small granules through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: putting the medicine core with the above effects into a water bath oven or a steam oven, and drying until the water content is lower than 1%;
e) preparing an outer wrapping layer material: 20% -90% of nitrocellulose and 10% -40% of oxidant, fully mixing and sieving, and removing oversize particles;
f) dissolving the uniformly mixed outer wrapping layer material in a mixed organic solvent;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a water bath oven or a steam drying room, and drying until the water content is lower than 1%;
i) adding an ignition medicine layer: putting the obtained optical bead into dry nitrocellulose powder, and fully mixing to coat a layer of nitrocellulose powder on the surface of the optical bead, so that the optical bead is convenient to ignite. Finally, the excess nitrocellulose powder is removed.
(3) The preparation process of the steamed stuffed bun comprises the following steps:
a) crushing 0-20% of lead-free catalyst, 0-20% of copper oxide, 0-30% of magnesium-aluminum alloy and 0-20% of adhesive, uniformly mixing according to a certain proportion, sieving, and removing oversize particles;
b) adding the uniformly mixed effective core materials into solvents such as water or alcohol, and uniformly stirring;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into small granules through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: putting the medicine core with the above effects into a water bath oven or a steam oven, and drying until the water content is lower than 1%;
e) preparing an outer wrapping layer material: 10-40% of oxidant and 20-90% of nitrocellulose, fully mixing and sieving, and removing oversize particles;
f) dissolving the uniformly mixed outer wrapping layer material in an organic solvent, wherein the organic solvent is selected from one or more of the following solvents for cross combination use: methanol, ethanol, isopropanol, n-butanol, methyl ether, ethyl ether, methyl ethyl ether, acetone, ethyl acetate, and butyl acetate;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a water bath oven or a steam drying room, and drying until the water content is lower than 1%;
i) adding an ignition medicine layer: putting the micro-smoke nontoxic sounder obtained in the steps into dry nitrocellulose powder, and fully mixing to wrap a layer of nitrocellulose powder on the surface of the sounder, so that the sounder is convenient to ignite. Finally, the excess nitrocellulose powder is removed.
(4) The charging process comprises the following steps:
a) uniformly mixing the sprayed firework core, the light beads and the sounder of the uniformly mixed micro-smoke cold firework according to a certain proportion, filling the mixture into an empty cylinder of a fountain firework product, and tamping the mixture to a required compact degree to ensure that no gap exists in the firework core;
b) and (4) packaging, namely, sealing the opening of the charging end by using mud or a fixing agent, and then inserting a lead into the opening of the spraying end.
Specific examples are further listed below:
example one
This example specifically prepares a blue light smoke-cooled firework, including a blue light bead and a sounder.
(1) The preparation process of the spraying decoration flux core of the blue micro smoke cooling firework comprises the following steps:
a) fully mixing 20% of ammonium perchlorate, 50% of nitrocellulose (the average nitrogen content is 11.8%), 20% of 100-mesh titanium powder, 5% of 100-mesh copper oxide powder and 5% of fluororubber according to a certain proportion; the above percentages are mass percentages. The total drug loading can be determined according to requirements.
b) Sieving: removing particles with the particle size of more than 100 meshes.
(2) The preparation process of the blue light bead comprises the following steps:
a) preparation of effect core material: 25% of ammonium perchlorate, 50% of 100-mesh (the average nitrogen content is 11.8%) nitrocellulose, 20% of 100-mesh titanium powder and 5% of 100-mesh copper oxide, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
b) dissolving the uniformly mixed effect core materials in ethanol and diethyl ether in a ratio of 1: 1 mixing the solution. Mixing 15-20 ml of solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the above dissolved effective core materials into a homogeneous medicated mass; then the drug mass is rubbed into small granules by a sieve, and the plate is sieved or the coating pot is rotated for granulation;
d) drying: the medicine core with the effect is put into a steam drying room, and is dried for 2 to 10 hours at the temperature of 30 to 60 ℃ until the water content is lower than 1 percent;
e) preparing an outer wrapping layer material: 25% of ammonium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a steam drying room, adjusting the temperature to 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: putting the smooth bead medicine core obtained in the steps into dry nitrocellulose powder, and fully mixing to coat a layer of nitrocellulose powder on the surface of the smooth bead, so that the smooth bead medicine core is convenient to ignite. Finally, the excess nitrocellulose powder is removed.
(3) The preparation process of the steamed stuffed bun comprises the following steps:
a) preparation of effect core material: crushing 18% of bismuth carbonate, 40% of copper oxide, 40% of magnesium aluminum alloy and 2% of refined flour, uniformly mixing, and sieving to remove particles with the particle size of more than 120 meshes;
b) and adding the uniformly mixed effective core materials into a 95% alcohol solvent, and uniformly stirring. Mixing 15-20 ml of alcohol solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the above dissolved medicine core materials into homogeneous medicinal mass; then the drug mass is rubbed into particles with the size of about 7 meshes through a sieve, and the plate is sieved or the coating pot is rotated for granulation;
d) drying: putting the medicine core with the above effects into a water bath oven or a steam oven, adjusting the temperature to 30-60 ℃, drying for 1-l 0 hours until the water content is lower than 1%;
e) preparing an outer wrapping layer material: 25% of ammonium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a water bath oven or a steam drying room, adjusting the temperature to be 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: the obtained fructus crotalariae albidae drug core is put into dry 100 mesh (average nitrogen content 11.8%) nitrocellulose powder, and is fully mixed, so that the surface of fructus crotalariae albidae is coated with a layer of nitrocellulose powder, and ignition is facilitated. Finally, the excess nitrocellulose powder is removed.
(4) The charging process comprises the following steps:
a) the spraying decoration flux core, the light bead and the sounder of the micro-smoke cold firework which are uniformly mixed are pressed according to the proportion of 8: 1: 1, filling the mixture into an empty cylinder of a fountain firework product, and tamping the mixture until the pressure is 0.5 MPa to ensure that no gap exists in a medicine core body;
b) and (3) packaging, namely, firmly sealing the opening of the charging end by using soil or a fixing agent, and then inserting a (smokeless) lead into the opening of the spraying end.
Example two
This example specifically prepares red light smoke cold fireworks, including red light pearl and sound.
(1) The preparation process of the spraying decoration flux core of the red slight smoke cold firework comprises the following steps:
a) 20 percent of potassium perchlorate, 50 percent of nitrocellulose (the average nitrogen content is 11.8 percent), 10 percent of 100-mesh magnesium powder, 10 percent of 100-mesh aluminum powder, 5 percent of 100-mesh strontium nitrate powder and 5 percent of fluororubber are fully mixed according to a certain proportion, and the percentages are mass percent. The total drug loading can be determined according to requirements.
b) Sieving to remove particles with particle size above 100 mesh.
(2) The preparation process of the red light beads comprises the following steps:
a) preparation of effect core material: 20% of potassium perchlorate, 50% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, 20% of 100-mesh titanium powder and 5% of 100-mesh strontium nitrate, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
b) dissolving the uniformly mixed effect core materials in ethanol and diethyl ether in a ratio of 1: 1 mixing the solution. Mixing 15-20 ml of solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into small granules through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: the medicine core with the effect is put into a steam drying room, and is dried for 2 to 10 hours at the temperature of 30 to 60 ℃ until the water content is lower than 1 percent;
e) preparing an outer wrapping layer material: 25% of potassium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a steam drying room, adjusting the temperature to 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: and (3) putting the dry nitrocellulose powder into the core of the optical bead obtained in the above steps, and fully mixing to coat a layer of nitrocellulose powder on the surface of the optical bead, so that the optical bead is convenient to ignite. Finally, the excess nitrocellulose powder is removed.
(3) The preparation process of the steamed stuffed bun comprises the following steps:
a) preparation of effect core material: crushing 18% of bismuth carbonate, 40% of copper oxide, 40% of magnesium aluminum alloy and 2% of refined flour, uniformly mixing, and sieving to remove particles with the particle size of more than 120 meshes;
b) and adding the uniformly mixed effective core materials into a 95% alcohol solvent, and uniformly stirring. Mixing 15-20 ml of alcohol solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into particles with the size of about 7 meshes through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: putting the medicine core with the above effects into a water bath oven or a steam oven, adjusting the temperature to 30-60 ℃, drying for 1-l 0 hours until the water content is lower than 1%;
e) preparing an outer wrapping layer material: 25% of potassium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a water bath oven or a steam drying room, adjusting the temperature to be 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: the obtained fructus crotalariae albidae drug core is put into dry 100 mesh (average nitrogen content 11.8%) nitrocellulose powder, and is fully mixed, so that the surface of fructus crotalariae albidae is coated with a layer of nitrocellulose powder, and ignition is facilitated. Finally, the excess nitrocellulose powder is removed.
(4) The charging process comprises the following steps:
a) the spraying decoration flux core, the red light bead and the sounder of the micro-smoke cold firework which are uniformly mixed are pressed according to the proportion of 8: 1: 1, filling the mixture into an empty cylinder of a fountain firework product, and tamping the mixture until the pressure is 0.5 MPa to ensure that no gap exists in a medicine core body;
b) and (3) packaging, namely, firmly sealing the opening of the charging end by using soil or a fixing agent, and then inserting a (smokeless) lead into the opening of the spraying end.
EXAMPLE III
This example specifically prepares a yellowish slightly smoky cold firework containing no added flame material, including blue and red beads.
(1) The preparation process of the spraying decoration flux core of the light yellow micro smoke cold firework without adding the flame color material comprises the following steps:
a) the ammonium perchlorate is 20 percent, the nitrocellulose is 50 percent (the average nitrogen content is 11.8 percent), the 100-mesh titanium powder is 25 percent, and the fluororubber is 5 percent, which are fully mixed according to a certain proportion, and the percentages are mass percent. The total drug loading can be determined according to requirements.
b) Sieving to remove particles with particle size above 100 mesh.
(2) The preparation process of the blue light bead comprises the following steps:
a) preparation of effect core material: 25% of ammonium perchlorate, 50% of 100-mesh (the average nitrogen content is 11.8%) nitrocellulose, 20% of 100-mesh titanium powder and 5% of 100-mesh copper oxide, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
b) dissolving the uniformly mixed effect core materials in ethanol and diethyl ether in a ratio of 1: 1 mixing the solution. Mixing 15-20 ml of solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into small granules through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: the medicine core with the effect is put into a steam drying room, and is dried for 2 to 10 hours at the temperature of 30 to 60 ℃ until the water content is lower than 1 percent;
e) preparing an outer wrapping layer material: 25% of ammonium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a steam drying room, adjusting the temperature to be 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: and (3) putting the dry nitrocellulose powder into the core of the optical bead obtained in the above steps, and fully mixing to coat a layer of nitrocellulose powder on the surface of the optical bead, so that the optical bead is convenient to ignite. Finally, the excess nitrocellulose powder is removed.
(3) The preparation process of the red light beads comprises the following steps:
a) preparation of effect core material: 25% of ammonium perchlorate, 50% of 100-mesh (the average nitrogen content is 11.8%) nitrocellulose, 20% of 100-mesh titanium powder and 5% of 100-mesh strontium nitrate, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
b) dissolving the uniformly mixed effect core materials in ethanol and diethyl ether in a ratio of 1: 1 mixing the solution. Mixing 15-20 ml of solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into small granules through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: the medicine core with the effect is put into a steam drying room, the temperature is adjusted to be 30-60 ℃, and the medicine core is dried for 2-10 hours until the water content is lower than 1%;
e) preparing an outer wrapping layer material: 25% of ammonium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a steam drying room, adjusting the temperature to be 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: and (3) putting the dry nitrocellulose powder into the core of the optical bead obtained in the above steps, and fully mixing to coat a layer of nitrocellulose powder on the surface of the optical bead, so that the optical bead is convenient to ignite. Finally, the excess nitrocellulose powder is removed.
(4) The charging process comprises the following steps:
a) uniformly mixing the sprayed firework core, the blue light bead and the red light bead of the micro-smoke cold firework according to the weight ratio of 8: 1: 1, filling the mixture into an empty cylinder of a fountain firework product, and tamping the mixture until the pressure is 0.5 MPa to ensure that no gap exists in a medicine core body;
b) and (3) packaging, namely, firmly sealing the opening of the charging end by using soil or a fixing agent, and then inserting a (smokeless) lead into the opening of the spraying end.
Example four
This example specifically prepares a light blue light smoke-cooled firework, including a sounder.
(1) The preparation process of the spraying decoration flux core of the light blue micro smoke cooling firework comprises the following steps:
a) the ammonium perchlorate 20 percent, the nitrocellulose 50 percent (the average nitrogen content is 11.8 percent), the 100-mesh titanium powder 20 percent, the 100-mesh copper oxide powder 5 percent and the fluororubber 5 percent are fully mixed according to a certain proportion, and the percentages are mass percent. The total drug loading can be determined according to requirements.
b) Sieving to remove particles with particle size above 100 mesh.
(2) The preparation process of the steamed stuffed bun comprises the following steps:
a) preparation of effect core material: crushing 18% of bismuth carbonate, 40% of copper oxide, 40% of magnesium aluminum alloy and 2% of refined flour, uniformly mixing, and sieving to remove particles with the particle size of more than 120 meshes;
b) and adding the uniformly mixed effective core materials into a 95% alcohol solvent, and uniformly stirring. Mixing 15-20 ml of alcohol solvent for every 100g of the effective medicinal core material;
c) and (3) granulation: kneading the dissolved effect core materials into a homogeneous drug mass, then rubbing the drug mass into particles with the size of about 7 meshes through a sieve, and sieving a plate or rotating a coating pot for granulation;
d) drying: putting the medicine core with the above effects into a water bath oven or a steam oven, adjusting the temperature to 30-60 ℃, drying for 1-l 0 hours until the water content is lower than 1%;
e) preparing an outer wrapping layer material: 25% of ammonium perchlorate and 75% of 100-mesh (average nitrogen content is 11.8%) nitrocellulose, fully mixing and sieving, and removing particles with the particle size of more than 100 meshes;
f) dissolving the uniformly mixed outer wrapping layer material in ethanol and ethyl ether 1: 1 mixing the solution. Mixing 20-40 ml of solvent for every 100g of the outer wrapping layer material;
g) coating the dried effect medicine core with the dissolved outer coating material;
h) drying: putting the product obtained in the step into a water bath oven or a steam drying room, adjusting the temperature to be 30-60 ℃, and drying for 1-l 0 hours until the water content is lower than 1%;
i) adding an ignition medicine layer: the rattle obtained in the above steps is put into the dried 100-mesh (average nitrogen content is 11.8%) nitrocellulose powder, and the mixture is fully mixed, so that the surface of the rattle is coated with a layer of nitrocellulose powder, and the ignition is facilitated. Finally, the excess nitrocellulose powder is removed.
(3) The charging process comprises the following steps:
a) the spraying decoration flux core and the sounding core of the micro smoke cold firework which are uniformly mixed are pressed according to the weight ratio of 8: 2, the components are uniformly mixed according to the mass ratio, and are filled into an empty cylinder of a fountain firework product and tamped until the pressure intensity is 0.5 MPa, so that no gap is formed in a medicine core body;
b) and (3) packaging, namely, firmly sealing the opening of the charging end by using soil or a fixing agent, and then inserting a (smokeless) lead into the opening of the spraying end.
The invention changes the materials of the outer coating layer and the ignition medicine layer of the light bead and the sounder into smokeless powder, and aims to solve the problem that the light bead and the sounder in the traditional powder cannot be ignited fully due to insufficient ignition. The principle of such changes is two: (1) the smokeless powder based on nitrocellulose is more sensitive to air pressure, and the nitrocellulose can be successfully ignited by the rapid increase of the pressure, so the light bead and the sound in the invention can be ignited by the rapidly increased pressure in the firework barrel after the micro smoke cold firework is ignited. The traditional black powder is not sensitive to the rise of pressure intensity, so the ignition cannot be realized by utilizing the mechanism, and the ignition mode is different from the traditional powder taking the black powder as the main component; (2) the smokeless powder based on nitrocellulose has lower ignition point than black powder, so the light bead and sounder in the invented smokeless powder can be completely ignited.
Compared with the prior art, the micro smoke-cooled firework containing the light beads and the sounder has the advantages that the light beads and the sounder can be successfully and fully ignited by the powder of the micro smoke-cooled firework based on the smokeless powder by changing the formula and the manufacturing process of the light beads and the sounder, a photoluminescent material is not required to be added, the photochromic effect which can be achieved by the traditional firework with the smoke can be generated, the cost of the firework is controlled within the market acceptable range, and the application and the popularization are facilitated.
Finally, it should be noted that: the above examples are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A micro-smoke cold firework containing light beads and sounders is characterized by comprising the following components in percentage by weight:
30 to 90 percent of energetic substance,
5 to 50 percent of oxidant,
0 to 30 percent of metal powder,
0 to 20 percent of flame reaction material,
0 to 20 percent of lead-free catalyst,
0 to 10 percent of adhesive,
all percentages are mass percentages.
2. The micro-smoke cold firework with the light beads and the sounder as claimed in claim 1, wherein the energetic substances comprise nitrocellulose, single-base powder and double-base powder, the energetic substances are compounds formed by nitric acid esterification of plant fibers and are composed of C6H10O5、C6H9(NO2)O5、C6H8(NO2)2O5、C6H7(NO2)3O5The nitrogen content of the macromolecule formed by mixing the four basic rings depends on the mixing proportion of the four basic rings, and the nitrogen content of the energetic substance actually used in the micro-smoke cold fireworks is 11.0-12.5%.
3. The micro-smoke cooled firework with the glowing bead and the sounder as claimed in claim 1, wherein the oxidizer includes ammonium perchlorate, potassium nitrate, ammonium nitrate and potassium chlorate.
4. The micro-smoke-cooled firework with the light beads and the sounder as claimed in claim 1, wherein the metal powder comprises one or a mixture of any more of titanium, iron, zirconium, aluminum, chromium and nickel in any proportion.
5. The micro-smoke-cooled firework containing the light beads and the sounder as claimed in claim 1, wherein the flame reaction material is metal powder capable of generating flame reaction, and comprises one or a mixture of any more of barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, rubidium, antimony, strontium and zinc, and the flame reaction material further contains compounds of the metal powder.
6. The micro-smoke cooled firework as claimed in claim 1, wherein said lead-free catalyst comprises bismuth carbonate, bismuth oxide, antimony oxide, zinc oxide, tin oxide and manganese oxide.
7. The micro-smoke cooled firework as claimed in claim 1, wherein said adhesive comprises silicates, polyvinyl formaldehydes, polyvinyl acetates and co-emulsions, solvent-based rubbers, resins, EVA hot-melt types, cyanoacrylates and water-based pressure sensitive adhesives.
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