One Intelligent High-temperature Drying Unit Successfully Applied in Firecracker Firework Industry
Recently, the “Integrated Intelligent High-Temperature Drying Unit†developed by Keyyang Company has been successfully used in the fireworks industry in Liuyang City, Hunan Province (bead drying), and has won unanimous recognition and favorable comments from customers.
One intelligent high temperature dryer
Bright beads (drugs) drying process requirements are very strict, the construction of the drying room is also very particular about the drying room walls must be built solid wall, and both inside and outside are painted to prevent hot air leakage. There is a certain amount of ditch around the drying room. The bottom layer of cement is covered with a film, covered with cement, and the rubber surface is covered with a rubber sheet so that it can be rinsed with water. Explosion-proof walls inside the baking room area of ​​less than 20 square meters, one-time bead drying weight of about 500KG, dehydration amount of 30%, drug-stored on the drying rack, the thickness of about 1.5cm.
Keyang high-temperature heat pump direct thermal unit at the initial temperature of about minus 5 °C at night, heated to 55 °C for 12-16 hours of drying, reaching the bright beads (drug) drying index. During the two and a half hours after the unit started operation, it reached the specified temperature requirement. After that, it was forced to dehumidify once every two hours, and the dehumidification time was about 5 minutes. The unit was operated for about 12 hours, the unit stopped working, and finally it reached the requirement for bead drying in the baking room. In the baking room, the bright beads (drugs) have been almost completely dehydrated, and the relative humidity of the drug is close to 1.5%. After 2-4 hours, the interior temperature of the barn has dropped to the ambient natural temperature, and the baking pan ends to the packing and packing room for drug collection. The drying process ends.
Practice has proved that the use of high-temperature heat pump Keyang hot unit to bake, not only than the original or traditional baking equipment to greatly shorten the baking time, and the company took one-in-one direct thermal unit and barn Completely isolated, directly pulling the air supply pipe to the barn form completely eliminates the high risk of electric heating friction or return dust initiation in the barn. The establishment of safety signs for the fireworks industry has set a perfect example for the baking equipment industry.
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