阅读说明：本技术 一种用硝化竹纤维素纸制备爆竹药剂的方法 (Method for preparing firecracker medicament by using nitrocellulose paper ) 是由 刘吉平 宋昆朋 刘克普 吉伟生 于保藏 李琪军 周天驰 于 2020-08-04 设计创作，主要内容包括：本发明涉及一种用硝化竹纤维素纸制备爆竹药剂的方法,属于烟火药领域。将硝化竹纤维素纸在乙醇中粉碎干燥得到的硝化竹纤维素絮料加入乙酸乙酯中搅拌得到硝化竹纤维素溶液；将三聚氰胺粉末加入硝化竹纤维素溶液中并依次加入烷基二羧甲基铵乙内酯、聚乙烯醇、二羟甲基二羟基乙烯脲树脂,得到溶液N；将溶液N倒入硝化竹纤维素粉末中得混合物A；向混合物A中加入高氯酸钾粉和溶液N得混合物B；向混合物B中加入铝粉和溶液N得混合物C；将混合物C造粒使之落于牛皮纸并干燥；用铜棒敲混合物C,颗粒断开不变形时再次干燥,即得爆竹药剂颗粒。本发提供一种硝化竹纤维素纸制备爆竹药剂的方法,制备工艺简单便于控制；产品稳定性好,安全易存。(The invention relates to a method for preparing a firecracker medicament by using nitrified bamboo cellulose paper, and belongs to the field of pyrotechnic compositions. Adding the nitrated bamboo cellulose wadding obtained by crushing and drying the nitrated bamboo cellulose paper in ethanol into ethyl acetate and stirring to obtain a nitrated bamboo cellulose solution; adding melamine powder into a nitrified bamboo cellulose solution, and sequentially adding alkyl dicarboxymethylammonium ethyl lactone, polyvinyl alcohol and dimethylol dihydroxy ethylene urea resin to obtain a solution N; pouring the solution N into the nitrified bamboo cellulose powder to obtain a mixture A; adding potassium perchlorate powder and solution N into the mixture A to obtain a mixture B; adding aluminum powder and the solution N into the mixture B to obtain a mixture C; granulating the mixture C to fall on kraft paper and drying; knocking the mixture C by a copper bar, and drying again when the particles are broken and do not deform to obtain the firecracker medicament particles. The method for preparing the firecracker medicament by the nitrocellulose paper has simple preparation process and convenient control; the product has good stability, safety and easy storage.)

1. A method for preparing a firecracker medicament by using nitrocellulose paper is characterized by comprising the following steps: the method comprises the following specific steps:

step one, grinding the nitrobamboo cellulose paper in ethanol to pulp according to the mass ratio of 1:1 to obtain wet nitrobamboo cellulose wadding, taking out, transferring the wet nitrobamboo cellulose wadding to a vacuum drying box, drying the wet nitrobamboo cellulose wadding for 5-10 hours at the temperature of 30-50 ℃, and taking out to obtain the dried nitrobamboo cellulose wadding;

weighing dried nitrated bamboo cellulose wadding, adding the weighed nitrated bamboo cellulose wadding into ethyl acetate, and stirring until the nitrated bamboo cellulose is dissolved to obtain a nitrated bamboo cellulose solution with the mass fraction of 1-15%;

step three, adding melamine powder into the nitrified bamboo cellulose solution obtained in the step two, and uniformly stirring to obtain a white mixed solution M, wherein the melamine accounts for 1% -5% of the total mass of the mixed solution;

step four, under the stirring state, sequentially adding alkyl dicarboxymethyl ammonium ethyl lactone, polyvinyl alcohol and dimethylol dihydroxy ethylene urea resin into the solution M obtained in the step three, and uniformly stirring to obtain a white mixed solution N, wherein the three substances sequentially account for 0.1-0.3%, 0.2-0.6% and 0.2-0.8% of the total mass of the solution M;

pouring the mixed solution N obtained in the fourth step into the dried nitrobamboo cellulose powder under the stirring state, continuously stirring while pouring, observing the state change of the nitrobamboo cellulose powder until the nitrobamboo cellulose powder is in the shape of a whole mud cluster, and stopping pouring the mixed solution N; continuing stirring for 10-20 minutes, and stopping stirring to obtain a mixture A;

step six, adding potassium perchlorate powder with the particle size of 100-300 meshes into the mixture A obtained in the step five under the stirring state, adding the mixed solution N, observing the state change of the mixture consisting of the mixture A and the potassium perchlorate until the mixture is in a whole mud dough shape, and stopping pouring the mixed solution N; continuing stirring for 10-20 minutes, and stopping stirring to obtain a mixture B;

step seven, adding aluminum powder with the particle size of 100-300 meshes into the mixture B obtained in the step six under the stirring state, adding the mixed solution N, observing the state change of the mixture formed by the mixture B and the aluminum powder until the mixture is in the shape of a whole block of mud mass, and stopping pouring the mixed solution N; continuing stirring for 10-20 minutes, and stopping stirring to obtain a mixture C;

step eight, taking out the mixture C obtained in the step seven, granulating by using a 20-40-mesh copper sieve, directly dropping the prepared mixture C particles on kraft paper, forbidding turning, transferring the kraft paper to a cool and ventilated place for drying, and then bonding the mixture C particles together;

and step nine, observing the adhered mixture C particles obtained in the step eight, turning over kraft paper when the adhered mixture C particles are tapped by a fine copper rod and are broken without deformation, transferring the mixture C particles into a vacuum drying oven, carrying out vacuum drying for 2-10 hours at the temperature of 40-60 ℃, and taking out to obtain dried firecracker medicament particles.

2. The method of claim 1 for preparing a firecracker medicament using nitrocellulose paper, wherein: the mass ratio of the potassium perchlorate powder to the dried nitrated bamboo cellulose powder in the fifth step is (1-1.5): 1.

3. the method of claim 1 for preparing a firecracker medicament using nitrocellulose paper, wherein: the mass ratio of the aluminum powder to the dried nitrated bamboo cellulose powder in the fifth step is 1: (2-3).

Technical Field

The invention relates to a method for preparing a firecracker medicament by using nitrified bamboo cellulose paper, and belongs to the field of pyrotechnic compositions.

Background

In China, fireworks and crackers have been used for 1400 years, are important components of Chinese folk custom, serve as long-standing traditional culture carriers and symbolize festive, lucky, nice and happy. For a long time, the figure of the fireworks and crackers cannot be reduced inevitably every major holiday and important activity, and the demand of various social circles on the fireworks and crackers is larger and larger along with the continuous improvement of the living standard of people.

However, fireworks and crackers are common to blasting equipment, black powder, civil signal bombs and the like, belong to civil explosive articles, bring visual enjoyment to people and bring huge potential safety hazards to life and property safety of people. Moreover, the main components of the existing firecracker medicament are potassium nitrate, nitroglycerin, sulfur, charcoal, metal powder and the like, the preparation process is complex, the firecracker medicament is often not enough to be set off, a large amount of toxic and harmful gas and metal oxide dust are generated, the environment is polluted, and the health of people is damaged.

On the premise of ensuring the excellent setting-off effect of the fireworks and crackers, the environmental pollution and the harm to the human body caused by setting-off are reduced, the safety coefficient is improved, the hot point problem and the key problem to be solved urgently on the development road of the fireworks and crackers industry are solved, and the direction is pointed out for the development of the fireworks and crackers industry. Therefore, the method for preparing the firecracker medicament by using the nitrocellulose paper simplifies the production flow, improves the combustion efficiency and the safety performance, and has great social and practical significance.

Disclosure of Invention

The invention aims to provide a method for preparing a firecracker medicament by using nitrocellulose paper, which has simple preparation process, easy operation and convenient control; the product prepared by the method has good stability, safety, reliability and easy preservation.

The purpose of the invention is realized by the following technical scheme.

A method for preparing a firecracker medicament by using nitrocellulose paper comprises the following specific steps:

step one, grinding the nitrobamboo cellulose paper in ethanol to pulp according to the mass ratio of 1:1 to obtain wet nitrobamboo cellulose wadding, taking out, transferring the wet nitrobamboo cellulose wadding to a vacuum drying box, drying the wet nitrobamboo cellulose wadding for 5-10 hours at the temperature of 30-50 ℃, and taking out to obtain the dried nitrobamboo cellulose wadding;

weighing dried nitrated bamboo cellulose wadding, adding the weighed nitrated bamboo cellulose wadding into ethyl acetate, and stirring until the nitrated bamboo cellulose is dissolved to obtain a nitrated bamboo cellulose solution with the mass fraction of 1-15%;

step three, adding melamine powder into the nitrified bamboo cellulose solution obtained in the step two, and uniformly stirring to obtain a white mixed solution M, wherein the melamine accounts for 1% -5% of the total mass of the mixed solution;

step four, under the stirring state, sequentially adding alkyl dicarboxymethyl ammonium ethyl lactone, polyvinyl alcohol and dimethylol dihydroxy ethylene urea resin into the solution M obtained in the step three, and uniformly stirring to obtain a white mixed solution N, wherein the three substances sequentially account for 0.1-0.3%, 0.2-0.6% and 0.2-0.8% of the total mass of the solution M;

pouring the mixed solution N obtained in the fourth step into the dried nitrobamboo cellulose powder under the stirring state, continuously stirring while pouring, observing the state change of the nitrobamboo cellulose powder until the nitrobamboo cellulose powder is in the shape of a whole mud cluster, and stopping pouring the mixed solution N; continuing stirring for 10-20 minutes, and stopping stirring to obtain a mixture A;

step six, adding potassium perchlorate powder with the particle size of 100-300 meshes into the mixture A obtained in the step five under the stirring state, adding the mixed solution N, observing the state change of the mixture consisting of the mixture A and the potassium perchlorate until the mixture is in a whole mud dough shape, and stopping pouring the mixed solution N; continuing stirring for 10-20 minutes, and stopping stirring to obtain a mixture B;

the mass ratio of the potassium perchlorate powder to the dried nitrated bamboo cellulose powder in the fifth step is (1-1.5): 1;

step seven, adding aluminum powder with the particle size of 100-300 meshes into the mixture B obtained in the step six under the stirring state, adding the mixed solution N, observing the state change of the mixture formed by the mixture B and the aluminum powder until the mixture is in the shape of a whole block of mud mass, and stopping pouring the mixed solution N; continuing stirring for 10-20 minutes, and stopping stirring to obtain a mixture C;

the mass ratio of the aluminum powder to the dried nitrated bamboo cellulose powder in the fifth step is 1: (2-3);

step eight, taking out the mixture C obtained in the step seven, granulating by using a 20-40-mesh copper sieve, directly dropping the prepared mixture C particles on kraft paper, forbidding turning, transferring the kraft paper to a cool and ventilated place for drying, and then bonding the mixture C particles together;

and step nine, observing the adhered mixture C particles obtained in the step eight, turning over kraft paper when the adhered mixture C particles are tapped by a fine copper rod and are broken without deformation, transferring the mixture C particles into a vacuum drying oven, carrying out vacuum drying for 2-10 hours at the temperature of 40-60 ℃, and taking out to obtain dried firecracker medicament particles.

Advantageous effects

1. The method for preparing the firecracker medicament by using the nitrocellulose paper has simple production process, does not need to adopt complex and expensive equipment, and can realize the large-scale industrial production of preparing the firecracker medicament by using the nitrocellulose paper by using the existing factory equipment and the production conditions thereof;

2. the method for preparing the firecracker medicament by using the nitrocellulose paper has the advantages of simple steps, easy operation, no complex production conditions and convenient control. The nitrified bamboo cellulose is adopted, so that sufficient combustion can be ensured, and the product is good in stability, safe, reliable and easy to store;

3. the method for preparing the firecracker medicament by using the nitrocellulose paper has the advantages of simple and easily obtained raw materials, environmental protection, no pollution, no three-waste pollutant in the production and preparation process, no harm to human bodies and environment, and environmental protection.

Detailed Description

The present invention will be described in detail with reference to examples.