Double cone rotary vacuum dryer is a double conical rotary tank, equipment the middle cylindrical, both ends is conical, conical top head is designed to open the feeding (and manhole), another end for discharging valve. The tank body, is divided into three layers, the intermediate jacket heating medium can be steam, hot water or heat conducting oil circulation, heat preservation layer of alkaline superfine glass cotton, energy consumption; the inner layer on the material. When the tank in a vacuum state, the jacket is filled with heat conducting oil, hot water or steam, heat medium is heated, heat transfer to the wet material through the inner wall of the tank.
Because the vacuum state in the tank, the solvent of various materials (including water) under the condition of vacuum can be rapidly vaporized in temperature lower, and the rotary material is constantly on, both inside and outside the flip, material to continuously update the surface in contact with the wall, which makes full use of the wall of the conduction of heat, drying speed, improve the drying efficiency, and can achieve the purpose of uniform drying.
Solvent wet materials after heat absorption evaporation (water vapor), through the vacuum pump vacuum suction tube is withdrawn. Midway through the low temperature condensation system (use tap water or frozen brine) for cooling, in order to achieve the purpose of recycling, saving the production cost, and improve the vacuum pump working conditions, but also reduce the pollution of the environment.
Double cone rotary vacuum dryer for chemical, pharmaceutical, food and other industries of powdered, granular and fiber concentration, mixing, drying and low temperature drying material (such as biochemical products more suitable for easy oxidation, Yi Huifa, sensitive, strong stimulation, toxic material and is not allowed to destroy the crystal material drying.
Double cone rotary vacuum dryer is a new type environmental protection energy-saving dryer in drying and mixing in one. The condenser, vacuum pump and drying system, composed of complete vacuum drying device. (such as no solvent recovery, the condenser can not) the machine has advanced design. At the same time because the container itself rotary material material dynamic flow but the container does not accumulate material, the heat transfer coefficient is high, not only the drying rate, but also saves the energy and improves the drying efficiency. Double cone rotary vacuum dryer with reasonable design, convenient installation and debugging, can adapt to various conditions of resettlement, the energy consumption is only static drier equal yield 60%, double cone rotary vacuum dryer has the advantages of simple operation, high degree of automation. Double cone rotary vacuum drying machine to complete the whole drying process in vacuum cryogenic environment, conforms to the medical standard GMP, and is suitable for heat sensitive materials. Double cone rotary vacuum dryer design is advanced, has the advantages of simple structure, easy cleaning, the material can be fully discharged, simple operation. Can reduce the labor intensity and improve the working environment. At the same time because the container itself rotates material also rotates and the wall of the material is not deposited, so the heat transfer coefficient is high, the drying rate high, not only to save energy, and even drying of the material fully, good quality. Can be widely used in pharmaceutical, chemical materials, food, dyestuff industry drying.
Double cone rotary vacuum dryer cylinder for double cone rotating tank, tank in the vacuum state, the jacket is filled with steam or hot water or heat conducting oil heating, heat through the inner wall of the barrel body contact with the wet material, wet material after heat absorption evaporation of moisture, the vacuum pump is pumping out vacuum exhaust tube. Because the vacuum in the tank body, and the rotary to material continuously the flip, the drying rate of materials, high efficiency of the material to achieve the purpose of uniform drying.
Vacuum double cone rotary vacuum dryer for powder granular materials in pharmaceutical, food, chemical and other industries of drying and mixing, double cone rotary vacuum dryer has certain requirements for materials.
Cannot accept the heat sensitive materials at high temperature, the material will become water flexible regulation. Easy oxidation, hazardous materials, double cone rotary vacuum dryer requires very low residual volatile matter content material, requirements of the material on the crystal shape, the solvent to be recovered and toxic gas material.
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