Heat pump type method and equipment for drying gun powder

Abstract

This invention relates to method and apparatus for drying gunpowder. The method comprises: dehumidifying and drying air by a heat pump, heating, sending dried hot air by a blower through a wind pipe into the bottom of the drier in a drying room, diffusing upward, placing fireworks and gunpowder in the drier, drying fireworks and gunpowder by dried hot air, and exhausting moisture through a moisture exhaust window at the top of the drying room. The adoption of heat pump to heat and dry air has such advantages as high safety, high drying speed, high drying efficiency, and saved energy.

Description

technical field [0001] The heat pump gunpowder drying method and device of the invention belong to the field of drying, and in particular relate to a gunpowder drying method and device. Background technique [0002] In the process of fireworks production, it is necessary to dry the fireworks gunpowder. Now it is generally used to use the boiler to generate steam, and use the pipeline to enter the drying room for drying. In order to prevent the explosion of the gunpowder during the drying process, the drying process It is required that the temperature in the drying room should not be higher than 60°C, but since the boiler steam is used as the drying heat energy, the steam temperature is high, and it is easy to cause the temperature in the drying room to be higher than 80°C, which is unsafe, and the drying time is long and the efficiency is low. Low, the steam heat energy is transferred to the air in the room through the pipe, and most of the heat of the air is transferred to ...

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Problems solved by technology

[0002] In the process of fireworks production, it is necessary to dry the fireworks gunpowder. Now it is generally used to use the boiler to generate steam, and use the pipeline to enter the drying room for drying. In order to prevent the explosion of the gunpowder during the drying process, the drying process It is required that the temperature in the drying room should not be higher than 60°C, but since the boiler steam is used as the drying heat energy, the steam temperature is high, and it is easy to cause the temperature in the drying room to be higher than 80°C, which is unsafe, and the drying time is long and the efficiency is low. Low, the steam heat energy is transferred to the air in the room through the pipe, and most of the heat of the air is transferred to the ground, wall and roof during the natural convection process, and a small part of the heated powder takes away the moisture in the fireworks powder. The temperature of the air inside, the drying room is airtight, and the relative humidity of the air in the room will increase with the steam of gunpowder moisture, so the evaporation speed of gunpowder moisture is slow, generally takes 2-3 days, consumes a lot of energy and costs high cost

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