CN115108872B

CN115108872B - Ignition powder composition of firework fuming bright bead

Info

Publication number: CN115108872B
Application number: CN202210747032.2A
Authority: CN
Inventors: 李自检; 张会; 何军; 刘家波
Original assignee: Hunan Meaning Firework Group Co ltd
Current assignee: Hunan Meaning Firework Group Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-08-11
Anticipated expiration: 2042-06-29
Also published as: CN115108872A

Abstract

The invention discloses a firework fuming bright bead ignition powder composition, which comprises the following components in parts by weight: 48-52 parts of black powder, 13-17 parts of potassium nitrate, 13-17 parts of aluminum powder, 13-17 parts of lead tetraoxide and 3-7 parts of resin. By adopting the technical scheme, the open flame combustion phenomenon of the aerosol bright beads is effectively reduced, the aerosol bright beads which are subjected to floor combustion cannot appear, and the ignition smoke rate of the aerosol bright beads is improved to 99.9%.

Description

Ignition powder composition of firework fuming bright bead

Technical Field

The invention relates to a firework pyrotechnic composition, in particular to a lighting composition for fuming bright beads.

Background

The smoke combined firework is the most main firework variety in daily scene firework, and has huge market demand. The traditional manufacturing method is as follows: the smoke-generating agent is filled into the porous paper inner cylinder, the smoke-generating agent is burnt in the cylinder after being ignited, and smoke is emitted from the inner cylinder hole. However, the method for manufacturing the smoke fireworks mainly has the following disadvantages: firstly, the smoke generating time of the smoke is overlong, the maximum smoke amount generating time is 3-4 seconds, and the ornamental value is affected; secondly, the probability of burning and fuming of the inner cylinder in the falling state is high, and the safety performance of the product is affected.

In order to solve the defects of the traditional smoke and firework, an attempt is made to make the smoke and firework bright beads into a firework inner barrel, and after the firework inner barrel is fired in the air, the smoke and firework bright beads are set off in the air for fuming. However, the burning of the aerosol bright beads in the air causes problems of open flame burning and no smoke, resulting in failure.

Through our study, the main reasons are: as with other fireworks and bright beads, the aerosol bright beads need to be wrapped with a layer of ignition medicine of black fire powder; if the ignition medicine is not wrapped, the aerosol bright beads cannot catch fire after the inner cylinder is opened in the air for explosion. The black powder is used as the ignition powder of the bright beads, so that the powder can ignite the bright beads and can accelerate the ignition of the bright beads.

However, the principle of the effect of smoke bright beads is different from that of common firework bright beads: the common firework bright beads are required to be completely combusted to generate high temperature so that the metal ions can be subjected to electron transition to generate flame color reaction to present different colors; the bright beads of the aerosol do not need to be completely combusted, the color of the aerosol can be presented as long as the sublimation temperature of the aerosol is reached, the aerosol can be directly ignited when the solid state is changed into the gaseous state, and the aerosol is combusted by open flame without smoke when the temperature is too high.

Disclosure of Invention

In order to solve the defects, the technical problem to be solved by the invention is to provide the ignition medicine suitable for the aerosol bright beads. In order to solve the technical problems, the invention adopts the technical scheme that the ignition powder composition of the firework fuming bright beads is characterized by comprising the following components in parts by weight: 48-52 parts of black powder, 13-17 parts of potassium nitrate, 13-17 parts of aluminum powder, 13-17 parts of lead tetraoxide and 3-7 parts of resin.

Preferably, the composition comprises the following components in parts by weight: 50 parts of black powder, 15 parts of potassium nitrate, 15 parts of aluminum powder, 15 parts of lead tetraoxide and 5 parts of resin.

Preferably, the black powder consists of the following components in parts by weight: 60-70 parts of potassium nitrate, 5-15 parts of sulfur and 20-30 parts of charcoal powder. Further, the black powder consists of the following components in parts by weight: 65 parts of potassium nitrate, 10 parts of sulfur and 25 parts of charcoal powder.

The preparation and application method of the ignition powder composition comprises the following steps:

the components are uniformly mixed, sieved for the first time, humidified by a solvent, coated on the outer surface of the aerosol bright beads, and sieved for the second time.

Preferably, the primary screening is through a 100-120 mesh screen, and the secondary screening is through a 60-80 mesh screen.

Preferably, the diameter of the aerosol bright bead is 7 mm, and the thickness of the ignition powder wrapped on the outer surface of the aerosol bright bead is 0.5 mm.

The invention also aims to provide an aerosol bright bead prepared by adopting the ignition powder composition and an aerosol firework thereof.

The invention has the beneficial effects that:

by adopting the technical scheme, the open flame combustion phenomenon of the aerosol bright beads is effectively reduced, the aerosol bright beads which are subjected to floor combustion cannot appear, and the ignition smoke rate of the aerosol bright beads is improved to 99.9%.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. When an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Drawings

Fig. 1 is an enlarged schematic diagram of the cross-sectional structure of a finished aerosol bright bead.

Detailed Description

Preparation example 1: the ignition powder composition of the firework fuming bright beads comprises the following components in parts by weight: 50 parts of black powder, 15 parts of potassium nitrate, 15 parts of aluminum powder, 15 parts of lead tetraoxide and 5 parts of resin;

wherein the black powder consists of the following components in parts by weight: 65 parts of potassium nitrate, 10 parts of sulfur and 25 parts of charcoal powder.

1. the components are uniformly mixed and pass through a 100-120 mesh screen to obtain the ignition powder composition;

2. the aerosol bright beads are prepared, wherein the components and parts by weight of red smoke, yellow smoke, purple smoke, green smoke and blue smoke bright beads are as follows:

green smoke bright beads: potassium 25, flour 15, sulfur 5, chloride 8, smoke green 35, resin 7 and single-base powder 5.

Blue smoke bright beads: 23 parts of potassium, 15 parts of flour, 5 parts of sulfur, 8 parts of chloride ions, 30 parts of titanium blue, 7 parts of resin and 5 parts of single base powder.

Purple tobacco bright beads: potassium 25, flour 15, sulfur 5, chloride 8, smog purple 35, resin 7 and single-base powder 5.

Huang Yanliang beads: potassium 25, flour 15, sulfur 5, chloride 8, bright yellow 35, resin 7 and single-base powder 5.

Red smoke bright beads: potassium 25, flour 15, sulfur 5, chloride ion 8, smog red 35, resin 7 and single-base powder 5.

The components of the bright beads with the colors are respectively and uniformly mixed and granulated in a general way to obtain the aerosol bright beads. The aerosol bright beads were 7 mm in diameter.

3. The aerosol bright beads and the ignition powder composition are put into a roller, the ignition powder composition is humidified by an alcohol solvent, the roller rotates, the ignition powder composition is wrapped on the outer surface of the aerosol bright beads and passes through a 60-80 mesh screen, and as shown in figure 1, the thickness of an ignition powder layer 2 wrapped on the outer surface of the aerosol bright beads 1 is 0.5 mm. Obtaining the finished product aerosol bright beads.

4. And (5) baking the finished aerosol bright beads for 8 hours at 50 ℃, and then loading the finished aerosol bright beads into the firework inner cylinder.

By adopting the technical scheme, the black powder and the potassium nitrate are used as the ignition agent, and the resin is used as the adhesive. The ignition powder layer 2 can be rapidly ignited when the inner cylinder explodes, the ignition powder coated on the outer surface of the aerosol bright bead 1 burns, molten elemental lead is obtained by utilizing aluminum powder reaction, the molten lead layer covers and coats the surface of the aerosol bright bead, and the aerosol is not directly contacted with the air and separated from the air oxygen by utilizing the density of the lead, so that the aerosol bright bead is prevented from being ignited by open flame; simultaneously, the molten lead layer conducts external high temperature to sublimate an internal aerosol into a gaseous state, and the increase of the gaseous aerosol enables the air pressure in the lead layer to rise until the effect that the lead layer wraps in the air to burst the aerosol is broken through.

Preparation examples 2 to 5 differ from example 1 in the proportions of the components of the pilot composition, as shown in the following table:

sequence number	Black powder	Potassium nitrate part	Aluminum powder	Lead tetraoxide	Resin part
						2	48	13	17	13	3
3	49	17	13	14	4
						4	51	14	16	16	6
5	52	16	14	17	7

To verify the effect of the invention, we performed the following comparative experiments:

experimental group: the firework inner barrel prepared in preparation example 1 is adopted, 500 is randomly sampled, and 100 is respectively sampled from red smoke, yellow smoke, purple smoke, green smoke and blue smoke;

control group: compared with preparation example 1, the firework inner barrel prepared by adopting the black powder as the ignition powder is only different in that the ignition powder of the control group adopts the following black powder, and the black powder consists of the following components in parts by weight: 65 parts of potassium nitrate, 10 parts of sulfur and 25 parts of charcoal powder. Randomly sampling 500 fireworks inner cylinders, and 100 red smoke, yellow smoke, purple smoke, green smoke and blue smoke respectively;

the experimental method comprises the following steps: according to the common method in the industry, the inner cylinders of the experimental group and the control group are arranged in the outer cylinder, the experimental group and the control group are simultaneously set off in batches on the same site, the setting off condition is recorded by visual inspection, the ignition smoke generation rate of the bright beads of the two groups is counted, and the maximum smoke generation time of the bright beads of the experimental group is measured.

The experimental results are shown in the following table:

group of	Sample total amount (Hair)	Total amount of failure (Hair)	Bright bead ignition smoke generating rate
				Experimental group	500	4	99.92％
Control group	500	95	81.00％

Meanwhile, 4 cases of failed ignition of the bright beads of the experimental group are failed ignition, the phenomenon that the bright beads burn with open fire is avoided, and the phenomenon that the bright beads burn in a floor mode is avoided.

Meanwhile, the maximum smoke amount fuming time of the bright beads of the experimental group is within 1 second after the inner cylinder is opened and fried, and the maximum smoke amount fuming time of the traditional porous paper inner cylinder smoke fireworks is generally 3-4 seconds after the inner cylinder is lifted off.

The embodiments of the invention disclosed above are intended only to assist in the description of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in conjunction with the accompanying drawings in order to best explain the principles of the invention and the practical application, and to thereby enable others skilled in the art to best understand and utilize the invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, it is therefore intended that the invention be limited only by the claims and the full scope and equivalents thereof, and not by the specific embodiments disclosed.

Claims

1. The ignition powder composition of the firework fuming bright beads is characterized by comprising the following components in parts by weight: 48-52 parts of black powder, 13-17 parts of potassium nitrate, 13-17 parts of aluminum powder, 13-17 parts of lead tetraoxide and 3-7 parts of resin, wherein the preparation and use methods of the ignition powder composition comprise the following steps: the components are uniformly mixed, sieved for the first time, humidified by a solvent, coated on the outer surface of the aerosol bright beads, and sieved for the second time.

2. The ignition powder composition of claim 1, comprising the following components in parts by weight: 50 parts of black powder, 15 parts of potassium nitrate, 15 parts of aluminum powder, 15 parts of lead tetraoxide and 5 parts of resin.

3. The ignition powder composition according to claim 1 or 2, wherein the black powder comprises the following components in parts by weight: 60-70 parts of potassium nitrate, 5-15 parts of sulfur and 20-30 parts of charcoal powder.

4. The ignition powder composition of claim 3, wherein the black powder comprises the following components in parts by weight: 65 parts of potassium nitrate, 10 parts of sulfur and 25 parts of charcoal powder.

5. The ignition powder composition of claim 1 wherein said primary screen is a 100-120 mesh screen and said secondary screen is a 60-80 mesh screen.

6. The igniter composition of claim 1 wherein the aerosol bright bead has a diameter of 7 mm and the igniter coating on the outer surface of the aerosol bright bead has a thickness of 0.5 mm.

7. An aerosol bright bead prepared using the pilot composition of any one of claims 1, 2, 4, 5, 6.

8. A smoke firework prepared using the aerosol bright bead of claim 7.