CN117232337A

CN117232337A - Ignition method for firework fireworks by adopting smokeless propellant

Info

Publication number: CN117232337A
Application number: CN202311215093.5A
Authority: CN
Inventors: 罗正元
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-19
Filing date: 2023-09-20
Publication date: 2023-12-15

Abstract

The invention discloses a firing method of firework fireworks adopting smokeless propellant powder, wherein the firework fireworks comprise a firing piece, propellant powder, an effect piece or a projectile body and a firing barrel; the propellant is smokeless powder with nitrocellulose as main component; the ignition sequence of the ignition element, the propellant powder and the effect element or the elastomer is as follows: the effect piece and the elastomer are both ignited by direct fire transmission of the ignition piece, and the propellant powder is ignited by the ignition piece or the effect piece. By the ignition method, the mode that the effect piece and the projectile body can be ignited only by means of the propellant powder is changed, and the effect piece and the projectile body are directly ignited by the ignition piece, so that the problem that smokeless propellant powder has low ignition power to the effect piece and the projectile body is avoided, and the ignition power when the smokeless propellant powder is adopted for emission is ensured to reach the same level when the black propellant powder is adopted for emission.

Description

Ignition method for firework fireworks by adopting smokeless propellant

Technical Field

The invention relates to the technical field of fireworks, in particular to a firing method for fireworks by adopting smokeless propellant.

Background

The firework is a product which can be used for emitting various light colors, patterns or other effects after being emitted from the emission cylinder to the high altitude or water area, and is divided into two main types of small firework and firework, wherein the effect part of the small firework is divided into a naked medicine type and a non-naked medicine type, the naked medicine type effect part comprises a medicine column and a bright bead, the non-naked medicine type effect part refers to an inner cylinder, and the projectile body of the firework filled with the effect medicine is divided into a spherical projectile and a column projectile. The ignition method for the product is that the ignition part is ignited to ignite the propellant powder, the propellant powder is ignited to ignite the effect part and the elastomer, and the ignition of the effect part and the elastomer is completely dependent on the ignition of the propellant powder.

The black powder is the only powder for the current fireworks, and the black powder generates a great amount of residues and smoke in the combustion process, so that the environment protection is not facilitated, and the ornamental effect of fireworks is seriously influenced.

Research on the replacement of black powder with smokeless (also called micro-smoke) powder with smaller smoke amount as firework powder is always a technical problem which the industry is eager to solve. Ten common problems of firework industry are selected after the related expert is collected in the world firework main producing place Liuyang city in 2014, the strategy of collecting and breaking the questions to the world is rewarded by tens of thousands of yuan, the related scientific research institutions, colleges and universities and firework enterprises are collected for scientific research and the smokeless emission technical project is listed in the ten problems.

The research and development results of the current smokeless powder are as follows in the domestic patent literature:

CN102826942a discloses a smokeless firework propellant; CN113233945a discloses a preparation method of firework smokeless propellant; CN102219621a discloses a modularized smokeless firework propellant and a preparation method thereof; CN111072785a discloses a preparation method of high nitrogen content nitrified bamboo cellulose; CN1456541a discloses a smokeless propellant; CN102219622a discloses a smokeless propellant for fireworks; the CN1431181a discloses smokeless propellant for fireworks; CN115141068A discloses smokeless propellant for firework emission and a preparation method thereof; CN109956843a discloses a smokeless propellant and a preparation method thereof; CN101844954B discloses a micro-porous smokeless firework powder and a preparation method thereof; CN102219621B discloses a modularized smokeless firework propellant and a preparation method thereof; CN109320387A discloses a cellulose powder for cold light spray fireworks and a preparation method thereof; bamboo cellulose propellant disclosed in CN 108191588A; CN101876519a discloses a firework emission charging structure for improving emission effect and a charging method thereof; CN101852576a discloses a firing and charging structure of smokeless fireworks and a charging method thereof; CN101560129a discloses a preparation method of safe and environment-friendly propellant for fireworks; CN109279996a discloses a safe micro-smoke propellant; application of the bamboo charcoal fiber cotton disclosed in CN109206289A in firework propellant and the like.

The development of the part of smokeless propellant has been completed for more than ten years. However, until now, the powder is not applied to the actual production of firework fireworks, the powder for firework is still black powder, and the powder for smokeless powder cannot become the powder for firework fireworks, and the sign is that:

because the effect piece and the projectile body need to be launched and lifted under the drive of the gas making pressure of the propellant powder blasting, the ignition piece (the ignition device of fireworks comprises a lead wire, an electric ignition head, a component for igniting the firework, and the like) is used for igniting the propellant powder by igniting the firework by igniting the effect piece and the projectile body by igniting the propellant powder by igniting the effect piece and the projectile body by igniting the firework by the traditional firework igniting mode in the industry, the ignition power of the effect piece and the projectile body by igniting the firework by using the black propellant powder can reach 100 percent under all normal and foreseeable use conditions. However, smokeless propellant is based on nitrocellulose (also known as cellulose nitrate, but also aliases or derivatives or finely divided substances such as nitrocotton, pyrocotton, monobasic, nitrocellulose (cellulose), nitrocellulose etc.), which is the main component of smokeless propellant, and has almost all of its combustion products as a gaseous component, clean combustion products, and little solid residue, and has a lower fire transmission than that of black powder. When the firework adopts the existing smokeless powder as the powder charge of the powder, the ignition of the powder cannot ensure that the effect piece and the elastomer are ignited by the transfer fire, the occurrence rate of the phenomenon of 'black lump' in which the effect piece and the elastomer are not ignited is relatively high, and the success rate of the ignition of the effect piece and the elastomer by the transfer fire cannot be ensured to reach the same level when the black powder is emitted. This difference severely limits the popularization and application of the smokeless powder as a firework propellant.

In this regard, the industry has started with improved formulations of smokeless propellant to enhance ignition performance by adding various combustion promoters. However, after the combustion improver is added, the ignition performance is improved, but the ignition power can not be ensured to reach the same level when the black powder is emitted; and the smoke is correspondingly increased after the combustion improver is added, so that the original purpose of reducing the smoke is obviously overcome, and the excellent performance of the smokeless propellant cannot be well exerted.

Therefore, the method for solving the problems has important significance and application value on the premise of not increasing the process links and the manufacturing cost, and no relevant report for solving the problems by adjusting the ignition mode exists at present.

Disclosure of Invention

In order to solve the defects, the technical problem to be solved by the invention is to provide a firing method for fireworks adopting smokeless powder, which ensures that the firing power of effect pieces and an elastomer reaches the same level when adopting black powder for firing when adopting the smokeless powder for firing. In order to solve the technical problems, the technical scheme adopted by the invention is that the ignition method of the firework fireworks adopting the smokeless propellant powder comprises an ignition piece, propellant powder, an effect piece or a projectile body and a launching tube; the propellant is smokeless powder with nitrocellulose as a main component; the ignition sequence of the ignition piece, the propellant powder and the effect piece or the projectile body is as follows: the effect piece and the elastomer are both ignited by direct fire transmission of the ignition piece, and the propellant powder is ignited by the ignition piece or the effect piece. Specifically selected from one of the following modes:

in the first mode, the ignition member simultaneously ignites the propellant powder and the effect member;

in the second mode, the ignition part transmits fire to ignite the effect part, and the effect part transmits fire to ignite the propellant powder;

the third mode is that the ignition piece is directly connected with the fire passing piece on the elastomer, and the ignition piece continues to pass fire to ignite the fire passing piece after passing fire to ignite the propellant powder, and the fire passing piece is a fire cable or a fire passing lead;

in a fourth mode, the ignition piece is directly connected with the ignition lead on the elastomer, and the ignition piece continuously transmits fire to ignite the propellant powder after transmitting fire to ignite the ignition lead.

In the technical scheme, the method is different from the traditional mode that the propellant powder is transmitted to the effect piece and the projectile body, and the effect piece and the projectile body realize the launching and the rising by virtue of the blasting of the propellant powder, but the effect piece or the projectile body does not take the transmission of the fire after the blasting of the propellant powder as the only way of successful ignition, but the effect piece and the projectile body are directly transmitted to the fire to be ignited by the ignition piece; the ignition modes of the propellant include two modes: the ignition part directly transmits fire to ignite; and secondly, the fire is transmitted to ignite through the effect piece.

The invention has the beneficial effects that: by the ignition method, the mode that the effect piece and the projectile body can be ignited only by means of the propellant powder is changed, and the effect piece and the projectile body are directly ignited by the ignition piece, so that the problem that smokeless propellant powder has low ignition power to the effect piece and the projectile body is avoided, and the ignition power when the smokeless propellant powder is adopted for emission is ensured to reach the same level when the black propellant powder is adopted for emission.

Preferably, the effect piece is a small firework effect piece, a sleeve is arranged at the center of a bottom plug of the transmitting cylinder, a fire passing port is arranged at the top of the sleeve, and a fire passing hole is arranged on the side wall of the sleeve; an electric ignition head is arranged in the sleeve, propellant powder is filled in the inner cavity of the transmitting cylinder around the sleeve, a separation paper bar is arranged between the effect piece and the propellant powder, and a central fire passing hole is formed in the separation paper bar.

Preferably, a isolating paper bar with a central fire hole is pressed above the propellant powder in the propellant canister; a small firework effect piece is arranged above the isolating paper bar; sealing paper bar is pressed above the effect piece; the ignition piece is a lead wire entering from the side wall of the emission tube, the inner end of the lead wire is arranged between the effect piece and the isolating paper bar, the ignition piece transmits fire to ignite the effect piece, and flame generated by the effect piece transmits fire to ignite the propellant powder through the central fire passing hole.

Preferably, the projectile body is a spherical projectile body or a cylindrical projectile body, the ignition piece is a cowhide quick lead wire, and the outer end of the fire-passing ignition cable on the projectile body is arranged in the propellant powder; the tail end core wire of the cowhide fast lead wire is directly connected with the outer end of the fire-passing guide rope; and after the cow leather fast-lead wire is used for igniting the propellant powder, continuing to be used for igniting the ignition fuse.

Preferably, the projectile body is a columnar projectile body, the ignition piece is an ignition lead, and the closed inner cavity of the columnar projectile body is divided into an effect medicine cavity and a transmitting medicine cavity by the isolation layer; the ignition lead penetrates through the effect medicine cavity and the transmitting medicine cavity, the tail end of the ignition lead is arranged in the transmitting medicine, the ignition lead is directly connected with the ignition lead outside the transmitting medicine cavity, and the ignition lead is continuously transmitted to ignite the transmitting medicine after transmitting the ignition lead to ignite the ignition lead.

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 herein, reference to the terms "embodiment," "example," "specific example," and the like, means 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 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 a schematic structural view of embodiment 1, in which the effect element is a bare type effect element of small fireworks, the ignition element is an electric ignition head which enters from a bottom plug of a transmitting cylinder, and a three-dimensional enlarged structural view of a sleeve is combined.

Fig. 2 is a schematic structural view of embodiment 2, in which the effect element is a bare type effect element of a small firework, and the ignition element is a lead wire entering from a side wall of the launch barrel.

Fig. 3 is a schematic structural view of embodiment 3, in which the effect element is a non-bare type effect element of small fireworks, and the ignition element is an electric ignition head entering from a bottom plug of the launch canister.

Fig. 4 is a schematic structural view of embodiment 4, in which the effect element is a non-bare type effect element of small fireworks, and the ignition element is a lead wire entering from the side wall of the barrel.

FIG. 5 is a schematic view of the structure of example 5, wherein the projectile is a ball-shaped projectile of the type of a display shell, the ignition element is a cow leather fast lead wire, and the overfire element on the projectile is a fuse.

FIG. 6 is a schematic view of the structure of example 6, wherein the projectile is a columnar projectile of the type of display shell, and the ignition member and the overfire member of the projectile are both leads.

Detailed Description

Example 1: referring to fig. 1, a specific structure employing the present invention is reflected. In the method for igniting the smokeless firework propellant, the effect piece 101 is a bare type effect piece of small firework, namely a grain, a sleeve 104 is arranged at the center of a bottom plug 103 of a propellant canister 102, an ignition port 112 is arranged at the top of the sleeve 104, and an ignition hole 105 is arranged on the side wall of the sleeve 104. An electric ignition head 106 is arranged in the sleeve 104, and a propellant powder 107 is filled in the inner cavity of a transmitting cylinder at the periphery of the sleeve 104, wherein the propellant powder 107 is a smokeless propellant powder based on nitrocellulose, such as various micro-smoke or smokeless propellant powder described in patent documents cited in the background art. The lower end of the effect piece 101 is wrapped with combustion-supporting medicine 108, a separation paper bar 109 is arranged between the effect piece 101 and the propellant 107, the separation paper bar 109 is provided with a central fire hole 110, and the upper end of the effect piece 101 is provided with a sealing paper bar 111.

The firing sequence of the propellant 107 and the effect member 101 is: the flame generated by the electric ignition head 106 passes through the fire passing hole 105, the fire passing port 112 and the center fire passing hole 110 to simultaneously fire and ignite the propellant powder 107 and the effect piece 101, and the propellant powder 107 pushes the effect piece 101 out of the transmitting cylinder 102 to be launched and lifted.

In the example, the firing order of the propellant 107 and the effect 101 is one in which the ignition member fires both the propellant and the effect.

In the above process, when the propellant powder 107 is ignited by the transfer fire, the effect piece 101 is simultaneously ignited by the electric ignition head 106, so that the way that the effect piece 101 can be ignited by the transfer fire of the propellant powder 107 is changed, and the effect piece 101 is directly ignited by the transfer fire of the ignition piece, namely the electric ignition head 106, thereby avoiding the problem that the success rate of the transfer fire ignition of the smokeless propellant powder to the effect piece is low, and ensuring that the ignition power of the firework adopting the smokeless propellant powder reaches 100% (namely, the effect piece and the propellant powder can be normally ignited under all normal and foreseeable use conditions, and the following is the same).

Example 2: referring to fig. 2, in the ignition method of the smokeless powder for fireworks, powder 206 is filled in an inner cavity above a bottom plug 205 of a powder cartridge 201, a separation paper bar 207 is pressed above the powder 206, and the separation paper bar 207 is provided with a central fire through hole 204. The bare type effect piece of small fireworks is arranged above the isolating paper bar 207, namely a grain 202, the sealing paper bar 207 is pressed above the grain 202, and the lower end of the grain 202 is wrapped with combustion-supporting medicine 208. The ignition member is a lead 203 which enters from the side wall of the cartridge 201, the lead 203 is arranged between the grain 202 and the isolating paper bar 207, the lead 203 is used for igniting the grain 202, and the flame generated by the grain 202 is used for igniting the propellant powder 206 through the central fire hole 204.

In the example, the order of ignition of the propellant powder and the effect piece belongs to the second mode: the ignition part transmits fire to ignite the effect part, and the effect part transmits fire to ignite the propellant powder.

The embodiment can also ensure that the ignition power of fireworks adopting smokeless propellant reaches 100 percent.

Example 3: referring to fig. 3, the difference from embodiment 1 is that the effect is a non-bare type effect of small fireworks, i.e., an inner cylinder 303. The inner cavity of the inner cylinder 303 is filled with the effect gunpowder, the upper and lower ports of the inner cavity of the inner cylinder 303 are closed by an upper blocking layer 302 and a lower blocking layer 307, an ignition lead 304 passes through the lower blocking layer 307, the periphery of the ignition lead 304 is provided with a combustion improver 306, and sealing paper bar 308 is pressed above the inner cylinder 303.

The firing order of the propellant and effect pieces is the same as in example 1: flame generated by the electric ignition head 305 is transmitted to fire through the fire hole on the side wall of the sleeve to ignite the propellant, and the combustion improver 306 and the fire passing lead 304 at the lower end of the inner barrel 303 are transmitted to fire through the fire passing port and the central fire hole of the isolation paper bar, and the fire passing lead 304 ignites the effect gunpowder in the inner cavity of the inner barrel 303; after the propellant powder burns, the inner cylinder 303 is pushed out of the propellant cylinder 301 to be launched off.

In an example, the firing order of the propellant and effect pieces belongs to the first mode, and the ignition piece fires both the propellant and effect pieces at the same time.

Example 4: referring to fig. 4, the difference from embodiment 2 is that the effect piece is a non-bare type effect piece of small fireworks—an inner cylinder 401, and the inner cylinder 401 is identical in structure to the inner cylinder 303 of embodiment 3, and will not be described again.

The ignition element is an ignition lead 403 entering from the side wall of the emission tube 402, the ignition lead 403 is arranged between the inner tube 401 and the isolating paper bar 408, the ignition lead 403 transmits fire to ignite the combustion improver 407 and the fire passing lead 406 of the inner tube 401, and the generated flame transmits fire to ignite the emission agent 405 through the fire passing hole 404 in the center of the isolating paper bar 408.

Example 5: referring to fig. 5, the difference from the embodiment 1 is that the projectile body is a spherical projectile body 501 in a display shell, a medicine cup 503 filled with a propellant powder 502 is arranged below the spherical projectile body 501, and the outer end of a fire-passing fuse 504 of the spherical projectile body 501 is arranged in the propellant powder 502; the tail end core wire of the ignition part, i.e. the cow leather fast lead wire 505, is directly connected with the outer end of the fire passing ignition cable 504, and the connecting part of the tail end core wire and the fire passing ignition cable is wrapped by the propellant powder 502. The cow leather fast lead 505 is continuously transmitted to fire to ignite the propellant powder 502, and then the propellant powder 502 is ignited to do work to launch the spherical projectile body 501 from the gun barrel 506 to the high altitude for explosion.

The ignition sequence of this example belongs to the third mode: the ignition element is directly connected with the ignition cable of the projectile body, and the ignition element continuously transmits fire to ignite the ignition cable after transmitting fire to ignite the propellant powder.

In the prior art, the cow leather fast-lead wire fires and ignites the propellant powder, and the propellant powder fires again to ignite the fire-passing ignition cable. The cowhide fast lead wire is not directly connected with the fire-passing fire-guiding rope.

In the example, the cow hide fast lead wire 505 is directly connected with the fire passing and guiding rope 504 for passing fire, so that the mode that the effect piece can only be ignited by means of the fire passing of the propellant powder is changed, the effect piece is directly ignited by the ignition piece, and the problem that the success rate of igniting the effect piece by passing fire of the smokeless propellant powder is low is avoided.

In the example, the situation can ensure that the ignition power of fireworks adopting smokeless propellant reaches 100 percent.

Example 6: referring to fig. 6, the difference from the embodiment 5 is that the projectile body is a cylindrical projectile body 601 in a display shell, the ignition element is an ignition lead 602, and the closed inner cavity of the cylindrical projectile body 601 is divided into an effect medicine cavity 604 and a propellant powder cavity 605 by an isolating layer 603, and the effect medicine and the propellant powder are respectively filled; the overfire lead 606 penetrates through the effect medicine cavity 604 and the launching medicine cavity 605, the tail end of the ignition lead 602 is placed in the launching medicine, and the overfire lead 606 is directly connected with the ignition lead 602 outside the launching medicine cavity 605. The ignition lead 602 continues to fire after the ignition lead 606 is struck.

In this example, the order of ignition of the propellant powder and the effect piece belongs to the fourth mode: the ignition element is directly connected with the ignition lead of the elastomer, and the ignition element continuously transmits fire to ignite the propellant powder after transmitting fire to ignite the ignition lead.

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 firework igniting and transmitting method adopting the smokeless propellant powder comprises an ignition piece, a propellant powder, an effect piece or a projectile body and a launching tube; the propellant is smokeless powder with nitrocellulose as a main component; the ignition device is characterized in that the ignition sequence of the ignition piece, the propellant powder and the effect piece or the projectile body is as follows: the effect piece and the elastomer are both ignited by direct fire transmission of the ignition piece, and the propellant powder is ignited by the ignition piece or the effect piece. Specifically selected from one of the following modes:

2. The ignition method for firework adopting smokeless propellant as set forth in claim 1, wherein the effect piece is a small firework effect piece, a sleeve is arranged at the center of the bottom plug of the launching tube, a fire passing port is arranged at the top of the sleeve, and a fire passing hole is arranged on the side wall of the sleeve; an electric ignition head is arranged in the sleeve, propellant powder is filled in the inner cavity of the transmitting cylinder around the sleeve, a separation paper bar is arranged between the effect piece and the propellant powder, and a central fire passing hole is formed in the separation paper bar.

3. The ignition method for fireworks adopting smokeless propellant powder according to claim 1, wherein the isolating paper bar with a central fire hole is pressed above the propellant powder in the canister; a small firework effect piece is arranged above the isolating paper bar; sealing paper bar is pressed above the effect piece; the ignition piece is a lead wire entering from the side wall of the emission tube, the inner end of the lead wire is arranged between the effect piece and the isolating paper bar, the ignition piece transmits fire to ignite the effect piece, and flame generated by the effect piece transmits fire to ignite the propellant powder through the central fire passing hole.

4. The ignition method for fireworks adopting smokeless propellant powder according to claim 1, wherein the projectile body is a spherical projectile body or a cylindrical projectile body, the ignition member is a cowhide fast lead wire, and the outer end of the overfire ignition cable on the projectile body is arranged in the propellant powder; the tail end core wire of the cowhide fast lead wire is directly connected with the outer end of the fire-passing guide rope; and after the cow leather fast-lead wire is used for igniting the propellant powder, continuing to be used for igniting the ignition fuse.

5. The ignition method for fireworks adopting smokeless propellant powder according to claim 1, wherein the projectile body is a columnar projectile body, the ignition element is an ignition lead, and the closed cavity of the columnar projectile body is divided into an effect medicine cavity and a propellant powder cavity by an isolating layer; the ignition lead penetrates through the effect medicine cavity and the transmitting medicine cavity, the tail end of the ignition lead is arranged in the transmitting medicine, the ignition lead is directly connected with the ignition lead outside the transmitting medicine cavity, and the ignition lead is continuously transmitted to ignite the transmitting medicine after transmitting the ignition lead to ignite the ignition lead.