RU26116U1 - LYRICAL FIREWORK PRODUCT OF ALTITUDE ACTION - Google Patents

Abstract

1. Pyrotechnic fireworks device of high-altitude action, comprising a housing with stars, ignition-explosive and blow-out charges, characterized in that the ignition-explosive charge is made of an inert plant material coated with a layer of ignition mixture consisting of gunpowder or pyrotechnic composition and nitrocellulose, wherein the layer thickness of the igniter mixture is from 0.4 mm to 0.6 mm, and the mass ratio of the inert material and the powder or pyrotechnic composition in the igniter mixture was It ranges from 0.2 to 0.7.2. Pyrotechnic firework device according to claim 1, characterized in that the ignition-explosive charge is placed in a fabric shell and placed in the center of the body. Pyrotechnic fireworks according to claim 1, characterized in that the ignition-explosive charge is distributed throughout the internal volume of the housing.

Description

Pyrotechnic fireworks product of high-altitude action.

This utility model relates to the field of pyrotechnics, in particular to high-altitude fireworks products, and can be used in conducting fireworks presentations.

The closest technical solution is a pyrotechnic fireworks product of high-altitude action according to the author's certificate of the USSR No. 237042 class C 06 d.

The disadvantages of this pyrotechnic device is the performance of an ignition-bursting charge from an ignition mixture containing 53 ... 63% potassium nitrate, 32-38% magnesium powder and 5-9% cryolite, which is placed in a perforated cardboard shell, has a low burning rate and, as a result, a low rate of increase in pressure in the housing. But therefore, an uneven crushing of the body occurs, and the stars fly apart at a small initial speed, which, in turn, leads to a distortion of the sphere created in the sky.

The objective of this utility model is to create a pyrotechnic firework device with a bursting ignition charge, having a high rate of increase in pressure in the body and providing a high initial speed of stars expansion, uniform crushing of the body and the creation of a pattern of the correct geometric shape in the sky, thereby eliminating the disadvantages of the prototype.

The pyrotechnic firework device of high-altitude action consists of a spherical body with stars, ignition-bursting and blow-out charges and is characterized in that the ignition-bursting charge is made of an inert plant material coated with a layer of ignition mixture consisting of gunpowder or pyrotechnic composition and nitrocellulose. The layer thickness is from 0.4 to 0.6 mm, which ensures the highest efficiency of the igniter mixture when the ignition burst charge is triggered. The combustion of the igniter mixture ends before the rupture of the body of the pyrotechnic fireworks device. The mass ratio of inert material and gunpowder or pyrotechnic composition in the igniter mixture is from 0.2 to 0.7. This ratio of ingredients ensures the stability of the ballistic and technological characteristics of the ignition-explosive charge.

F42 4/04

as an inert material can be used: sunflower husk, oats, rice husk and cotton seeds. The use of plant matter with a loose structure and low gravimetric density gives the inert material a large unfolded surface.

The use of nitrocellulose in the form of a solution in a volatile solvent in the manufacture of an igniter mixture and the placement of the mixture in a tissue shell instead of a perforated cardboard, allows to increase manufacturability and reduce the complexity of manufacturing an ignition-explosive charge.

The pyrotechnic firework device of high-altitude action consists of a body (1), stars (2), a burst-ignition charge (5), a deceleration unit (6), and an expelling charge with

electric igniter (7). Ignition-explosive charge is made of an inert material (4) and an ignition mixture (3), consisting of gunpowder or pyrotechnic composition and nitrocellulose and applied in a thin layer to particles of inert material. Ignition-explosive charge is placed in a fabric shell, placed in the center of the housing and surrounded by gear stars (Fig. 1) or distributed throughout the internal volume of the housing together with gear stars (Fig. 2).

The operation of the pyrotechnic firework device is as follows:

- when an electric current is supplied, an electric igniter is activated, a beam of fire from which ignites the powder of the expelling charge;

-powder combustion products throw the ball out of the mortar and at the same time ignite the moderators; moderators transmit a beam of fire to an ignition-explosive charge;

- the mixture ignites, covering a thin layer of particles of an inert material and its rapid burning;

- the pressure in the body reaches its maximum value, and the gases formed break the body and scatter burning stars with a high initial speed, while a fiery sphere of the correct geometric shape appears in the sky.

Thus, the presented utility model makes it possible to obtain a firework device having an ignition-explosive charge, providing a high rate of increase in pressure in the body, a large initial speed of the stars scattering, uniform crushing of the body, and the creation of a pattern of the correct geometric shape in the sky.

On behalf of the applicant, the Director General of the Federal Scientific and Practical Center for Scientific Research and Development of Industrial Property,

Claims (3)

1. Pyrotechnic fireworks device of high-altitude action, comprising a housing with stars, ignition-explosive and blow-out charges, characterized in that the ignition-explosive charge is made of an inert plant material coated with a layer of ignition mixture consisting of gunpowder or pyrotechnic composition and nitrocellulose, wherein the layer thickness of the igniter mixture is from 0.4 mm to 0.6 mm, and the mass ratio of the inert material and the powder or pyrotechnic composition in the igniter mixture was It ranges from 0.2 to 0.7.  2. The pyrotechnic fireworks device according to claim 1, characterized in that the ignition-explosive charge is placed in a fabric shell and placed in the center of the body. 3. Pyrotechnic fireworks according to claim 1, characterized in that the ignition-explosive charge is distributed throughout the internal volume of the housing.