Viscous flow type pyrotechnic composition drying room

Abstract

The invention discloses a viscous flow type pyrotechnic composition drying room. A hot air inlet of the lower portion of the drying room communicates with an air outlet of a hot air supply mechanism.One ends of a plurality of moisture exhaust branch pipes communicate with the upper portion of the drying room, and the other ends of the moisture exhaust branch pipes communicate with an air inlet ofan air channel A of a heat exchanger. An air outlet of the air channel A of the heat exchanger is inserted into water. An air inlet of an air channel B of the heat exchanger serves as a fresh air inlet, and an air outlet of the air channel B communicates with an air inlet of the hot air supply mechanism. The viscous flow type pyrotechnic composition drying room can improve drying efficiency, is beneficial for increasing the drying speed, achieves zero emission of ethyl alcohol and dust, and thoroughly eliminates potential safety hazards.

Description

technical field [0001] The invention relates to a drying room for drying fireworks and firecrackers. Background technique [0002] The drying of the pyrotechnic drug in the existing fireworks and firecracker industry is carried out in a drying room, and the pyrotechnic drug is granulated by using a water-soluble adhesive and a water-insoluble adhesive. The non-water-soluble adhesive uses alcohol as a solvent, and alcohol gas and When the air mixing ratio is 3.5-13%, it is an explosive atmosphere. In the prior art, the drying room is heated by circulating air. As the circulating heating proceeds, the alcohol concentration in the drying room will increase, and once it reaches an explosive concentration, a safety accident will occur. [0003] At the same time, the pyrotechnic powder dust in the drying process is also a very dangerous source of accidents. With the circulation of hot air, the dust accumulates repeatedly in the air duct of the drying room, or is discharged from t...

AI Technical Summary

Problems solved by technology

In the prior art, the drying room is heated by circulating air. As the circulating heating proceeds, the alcohol concentration in the drying room will increase. Once it reaches an explosive concentration, a safety accident will occur.

[0003] At the same time, the pyrotechnic powder dust in the drying process is also a very dangerous source of accidents. With the circulation of hot air, the dust accumulates repeatedly in the air duct of the drying room, or is discharged from the drying room and scattered near the drying room, which constitutes a serious safety hazard.

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