A firework flamethrower resistant to burning

Abstract

The invention discloses a firework flamethrower resistant to burning, wherein the cylinder and the flamethrower are an integrated structure formed by compression molding; the raw materials for compression molding include the following components: soil, water, phenolic resin, polyvinyl alcohol, and natural resin; the above components are evenly mixed to form a blank, the blank is placed in a mold and pressurized at room temperature, and the product is obtained by demolding. The firework flamethrower with soil as the main body can be manufactured; the cost is low, the manufacturing is convenient and easy, and the prepared cylinder can withstand long-term high-temperature burning without the risk of burning or bursting the cylinder. The burning time of the firework product is no longer restricted by the cylinder factor, and can be used arbitrarily within the range of the charge amount allowed by the safety regulations. The prepared cylinder has good moisture resistance, will not be ignited, has high structural strength, and has a smooth inner wall of the cylinder, which effectively reduces the smoke pollution caused by the burning of fireworks, and will not cause the smoke to cover the burning effect.

Description

Technical Field

[0001] The invention relates to a firework component, in particular to a firework tube or a firework pipe. Background Art

[0002] Spray fireworks and some toy fireworks (mainly rotating and rotating flying) are formed by ejecting pyrotechnic powder combustion airflow from the firework tube or firework tube to form the corresponding firing effect. Therefore, these firework tubes or firework tubes are called firework flamethrowers.

[0003] In the prior art, firework flamethrowers are all rolled paper cylinders, and the shapes of the cylinders include cylindrical cylinders (also called straight cylinders), conical cylinders or other special-shaped cylinders. Fireworks are filled in the cylinder, and the port is blocked with a mud head made of mud, and the central opening of the mud head is used as a flame-spraying port. After the flower-spraying fireworks are ignited by an external fuse, the pyrotechnics in the cylinder burn to form a high-temperature and high-pressure jet airflow that is ejected from the flame-spraying port.

[0004] The main drawback of existing firework flamethrowers is that the jet airflow places high demands on the fire resistance of the firework tubes, and the paper tubes are prone to burning or even explosion, which seriously restricts the burning time of the firework products: for spray fireworks, the burning time is generally no more than 30 seconds; for some larger spray products with thickened tube walls, the burning time can reach up to 60 seconds, accompanied by serious burning damage to the tube; for rotating toy fireworks, rotating and launching toy fireworks, the burning time can reach up to 5 seconds.

[0005] At the same time, in the prior art, combined fireworks with a launch tube formed in one piece have partially replaced the traditional process. The multiple launch tubes (also called outer tubes) of the combined fireworks are prepared by a one-piece foaming molding method. However, this launch tube is also not resistant to long-term high-temperature burning and can only be used for combined fireworks. When it is ignited, the tube body only needs to withstand the short high temperature test at the moment of launch. Moreover, the structural strength of the tube body is not as good as that of the existing paper tube body, and it is not moisture-proof. Summary of the invention

[0006] In order to solve the above-mentioned drawbacks, the technical problem to be solved by the present invention is a burn-resistant firework flamethrower. In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is a burn-resistant firework flamethrower, characterized in that the cylinder body and the flamethrower of the firework flamethrower are an integrated structure formed by compression molding; the raw materials for the compression molding include the following components: soil, water, phenolic resin, polyvinyl alcohol, and natural resin; the above components are mixed evenly to form a blank, the blank is placed in a mold and pressurized at room temperature, and the blank is demolded to obtain the product.

[0007] Preferably, the weight ratio of each component is: 40-60 parts of soil, 3-5 parts of water, 10-60 parts of phenolic resin, 15-20 parts of polyvinyl alcohol, and 5-10 parts of natural resin;

[0008] Preferably, the raw materials for compression molding include the following components in weight ratio: 50 parts of clay, 4 parts of water, 37 parts of phenolic resin, 18 parts of polyvinyl alcohol, and 8 parts of natural resin.

[0009] Preferably, the raw material further comprises pearlite powder or sawdust. Preferably, the weight ratio of the pearlite powder or sawdust is 15-20% of the soil.

[0010] Beneficial effects of the present invention:

[0011] First, the above technical solution can realize the production of firework flamethrowers made of clay as the main body; the cost is low, the production is convenient and easy, and the produced cylinder body can withstand long-term high-temperature burning without the risk of burning or bursting the cylinder. The burning time of the firework product is no longer restricted by the cylinder factor, and it can be used arbitrarily within the range of the charge amount allowed by the safety regulations.

[0012] Secondly, the produced cylinder has good moisture resistance, which effectively prevents the internal pyrotechnic powder from being affected by moisture and affecting its quality.

[0013] Thirdly, the produced cylinder body will not be ignited, which effectively reduces the smoke pollution caused by fireworks, and there will be no situation where the smoke obscures the effect of the fireworks.

[0014] Fourthly, the obtained cylinder structure has high strength and is resistant to extrusion and collision; the inner wall of the cylinder is smooth, and the friction with the pyrotechnic powder is reduced; therefore, it is beneficial to the storage and transportation safety of fireworks products.

[0015] The firework flamethrower is used in spray-flower fireworks.

[0016] Preferably, the ignition time of the spray fireworks produced by the fireworks flamethrower is 2 to 5 minutes, especially 2 to 3 minutes.

[0017] The firework flamethrower is used in rotating fireworks and rotating and ascending fireworks.

[0018] Preferably, the burning time of the rotating type and rotating aerial type fireworks made by the fireworks flamethrower is 10 to 60 seconds, especially 10 to 20 seconds.

[0019] The firework flamethrower is about 20% heavier than a paper tube of the same specification, and does not affect the rotation and launch of rotating and rotating-to-air fireworks.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

[0021] In the description of this specification, the description of reference terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. When an element is referred to as "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. DETAILED DESCRIPTION

[0022] Embodiment 1: The barrel and the flamethrower of the burn-resistant firework flamethrower are an integrated structure formed by compression molding; the raw materials for the compression molding include the following components in a weight ratio: 50 parts of soil, 4 parts of water, 37 parts of phenolic resin, 18 parts of polyvinyl alcohol, and 8 parts of natural resin.

[0023] Among the above components, the soil is dried and crushed into powder, such as 80-120 mesh. Then, it is evenly mixed with other components by dry method, and water is added while stirring to form a blank. The blank is placed in a mold and pressurized at room temperature, and the finished product is obtained by demolding. Pressurization can be performed by a pressurizing device, such as a 2-ton hydraulic press. The finished product of the firework flamethrower can be used in flower-spraying fireworks.

[0024] Example 2-7: The difference from Example 1 is that the components and weight ratios of the raw materials for compression molding are different, as shown in the following table:

[0025]

[0026] 50 firework flamethrowers prepared by the above method were randomly selected to make flower spray fireworks products for firing experiments.

[0027] 1) The firing time is calculated from the time when the flame starts to spray from the tube to the time when the flame stops spraying. The firing time of 100 products is 5 minutes ± 20 seconds. Visual inspection shows that there is no tube explosion during the firing, and no ignition erosion is found on the tube after firing.

[0028] 2) Light transmittance test: The smoke volume of the above products is about 40% less than that of paper tubes of the same specifications.

[0029] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is only limited by the claims and their full scope and equivalents, and is not limited by the specific embodiments disclosed.

Claims

1. A firework flamethrower resistant to burning, characterized in that: The cylinder and the flamethrower of the firework flamethrower are an integrated structure formed by compression molding; the raw materials for the compression molding include the following components: soil, water, phenolic resin, polyvinyl alcohol, and natural resin; the weight ratio of each component is: 40 to 60 parts of soil, 3 to 5 parts of water, 10 to 60 parts of phenolic resin, 15 to 20 parts of polyvinyl alcohol, and 5 to 10 parts of natural resin; the raw materials also include perlite powder or sawdust, and the weight ratio of perlite powder or sawdust is 15 to 20% of the soil; the above components are evenly mixed to form a blank, the blank is placed in a mold, pressurized and molded at room temperature, and demolded to obtain the blank.

2. The firework flamethrower according to claim 1, characterized in that: The raw materials for compression molding include the following components in weight ratio: 50 parts of soil, 4 parts of water, 37 parts of phenolic resin, 18 parts of polyvinyl alcohol, and 8 parts of natural resin.

3. Application of the firework flamethrower as claimed in claim 1 or 2 in spray fireworks, rotating fireworks, and rotating and launching fireworks.

4. The use according to claim 3, characterized in that The ignition time of the spray fireworks made from the fireworks flamethrower is 2 to 5 minutes.

5. The use according to claim 4, characterized in that The ignition time of the spray fireworks made from the fireworks flamethrower is 2 to 3 minutes.

6. The use according to claim 3, characterized in that The burning time of the rotating type and rotating and ascending type fireworks made by the fireworks flamethrower is 10 to 60 seconds.

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