Method for preparing smokeless fireworks bright beads

Abstract

The invention discloses a method for preparing smokeless fireworks bright beads. The smokeless fireworks bright beads are characterized by comprising four kinds of red, green, purple and yellow, eachof the smokeless fireworks bright beads comprises a kernel and an outer layer, and the smokeless fireworks bright beads are in the shape of beads, wherein the kernel comprises the following componentsin percentage by mass: red: 55% of KMnO4, 24% of SrCO3, 17% of epoxy slices and 4% of dextrin; green: 50% of Ba(NO3)2, 10% of magnesium powder, 10% of aluminum powder, 7% of resins, 7% of rare earth,15% of KCIO4 and 1% of epoxy slices; purple: 20% of CuO, 40% of KCIO4, 10% of polyvinyl chloride, 10% of phenolic resins, 8% of magnesium powder and 8% of aluminum powder; yellow: materials containing sodium salt; the outer layer is a flame slow combustion delaying layer, and is designed according to zero oxygen balance, the consumption is 15-45% of the weight of the bright beads, and the outer layer comprises the components in percentage by mass of 0-86.2% of potassium nitrate, 0-84.2% of ammonium dichromate, and 13.8-15.8% of an adhesive. The smokeless fireworks bright beads have the advantages of being high in effective binding force, simple in technology, free from new equipment, little in smog, good in ornamental effect, high in promotion and application value, and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of fireworks medicaments, and in particular relates to a method for preparing bright beads in combination with single-base powder and double-base powder. Background technique [0002] In the traditional production of spray fireworks, black powder is generally used as the spray agent. However, when black powder burns, more black smoke is generated, so it is not good for the ornamental effect of spray flowers. In order to enhance the ornamental effect of spraying flowers, and at the same time, for the resource utilization of scrapped military smokeless propellant resources, and the development of environmentally friendly spraying fireworks, many domestic fireworks factories use the crushed smokeless powder with a particle size of 40-120 mesh to partially replace the original ones. Black powder used in sparkler fireworks to make sparklers with less smoke when fired. But the use effect is not ide...

AI Technical Summary

Problems solved by technology

But the use effect is not ideal, especially when the ratio of replacing black powder exceeds 50%, most of the bright beads will burn in the spray tube when it is set off. The reason is that the smokeless pollen and the existing bright beads cannot be effectively matched when burning

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