3 results about "Firecracker" patented technology

The invention discloses an automatic firework and firecracker powder preparing and mixing system. The system comprises a preparation mechanism, a metering preparation mechanism, a first conveying mechanism, a mixing mechanism and a second conveying mechanism, and also comprises an automatic control mechanism, wherein the automatic control mechanism is in communication connection with each operating mechanism and controls each operating mechanism to automatically operate in a coordinated mode according to the set program. According to the system disclosed by the invention, the whole-process mechanization and automation in the powder preparing and mixing operations can be realized, and the safety of the firework and firecracker production process is ensured; even if under the condition that the powder is abnormal, the personal safety can be ensured, and the accident losses are minimized; and moreover, the powder formula precision is improved, the powder mixing quality and identity are ensured, and the production cost of the firework and firecracker enterprises is effectively reduced.

The invention relates to a combined environment-friendly safe firecracker capable of producing both sounds and fireworks, belonging to the field of gunpowder manufacturing, specifically to a firecracker for festivals. The objective of the invention is to provide an environment-friendlier and safer firecracker. The firecracker provided by the invention comprises a firecracker body (1) and an ignition paper fuse (2) and is characterized in that explosive powder in the ignition paper fuse (2) is mainly composed of 20 to 60% of ultrafine charcoal powder, 10 to 25% of ultrafine potassium nitrate powder and the like; and explosive powder in the firecracker body (1) is mainly composed of 11 to 20% of ultrafine pure aluminum powder, 5 to 11% of ultrafine phenolic resins powder, 5 to 14% of ultrafine potassium perchlorate powder, etc. The combined environment-friendly safe firecracker provided by the invention has the advantages of better environmental protection performance and safety.