A dryer for fireworks beads and sulphur free propellants

Abstract

The invention provides a dryer for firework pearls and sulfur-free propellant powder. The dryer comprises a drying module and an alcohol recycling module which are connected through a vacuum exhaust pipe. The drying module comprises an external insulation machine and an internal radiator installed inside the external insulation machine. A steam or hot water heat supply pipeline is installed inside a gap between the external insulation machine and the internal radiator. A plurality of layers of supporting frames for containing objects to be dried are arranged inside the internal radiator. An insurance automatic door is installed on the external insulation machine of the dryer. The alcohol recycling module comprises an alcohol recycling machine cooling water tank and a plurality of cooling vent pipes perpendicular to a horizontal line and arranged inside the alcohol recycling machine cooling water tank. The lower ends of the cooling vent pipes are communicated with an alcohol recycling chamber with no cold water. By adopting the vacuum dehumidification mode, materials are safely dried under the low-humidity environment, time is prolonged by 4-20 times compared with an existing drying mode, energy consumption is lowered by 4-20 times compared with the prior art, and the dryer is worthy of popularization.

Description

technical field [0001] The invention relates to the field of making fireworks raw materials, in particular to a drying machine for fireworks bright beads, sulfur-free propellants and recyclable alcohol. Background technique [0002] At present, fireworks bright beads and sulfur-free propellants must be dried after alcohol granulation before they can be used. However, in the drying process, steam or air source heating is used, and a large-area drying room is required to fully meet the needs of manufacturers. There are too many defects in this traditional drying room drying method. [0003] Defect 1: When drying, only the fan can be used to dehumidify. The temperature in the drying room must be kept above 60 degrees Celsius, and it takes as long as 12 to 20 hours to completely dry. Not only the drying time is long, the effect is poor, and the energy consumption is large, but also the alcohol evaporated during the drying process cannot be recycled and can only be wasted. [...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a drying machine for fireworks bright beads and sulfur-free propellants, and recyclable alcohol, so as to solve the technical problem that the alcohol that is gasified during the drying process of bright beads and sulfur-free propellants cannot be recovered

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