Overview:
Washing and filtering (vacuum) drying equipment "three in one" is a new generation of solid-liquid separation process equipment that has been gradually promoted in China since the 1990s. The multi-functional filter washing (vacuum) drying unit of the foundry can complete the three processes of filtration washing and drying in a closed container equipment, maximizing the utilization of equipment. It avoids environmental pollution and avoids environmental pollution of materials, reduces material transport loss, saves solvent usage, and is suitable for batch mass production.

working principle:
During operation, hot water (oil) (steam) is introduced into the jacket of the tank, and the material in the tank is indirectly heated. At the same time, the tank is vacuumed to maintain a certain degree of vacuum in the tank, and the material is under negative pressure and low temperature. In this case, the drying speed is fast. Due to the continuous rotation of the cylinder containing the material, the material is continuously turned up and down, and the semi-suspended material moves into a diamond-shaped trajectory, which increases the heating surface. Achieve high efficiency, low consumption, energy saving and drying.
The device is compact in structure, stable in operation, simple in operation, energy-saving and high-efficiency, can realize aseptic operation, airtight and dry, suitable for drying of oxygen and dangerous materials, and suitable for heat-sensitive materials to achieve low-temperature drying, uniform drying of materials, color quality Guaranteed, and can recover the solvent that is volatilized during drying, and has good corrosion resistance.

Creative drying system design requirements:
● Filtration stage: separation of product and mother liquor (vacuum filtration).
● Washing stage: the filter cake is further purified, the residual mother liquor is washed and pre-dehydrated. The filter cake and the washing liquid are mixed by rotation, and finally formed into a slurry. The suspension cake was thoroughly washed.
● Drying stage: After the filter cake is dehydrated, the filter cake is loosened by rotation. At the same time, the steam inside the jacket heats the inner wall, and the filter cake is heated and heated by heat conduction, and the moisture is quickly evaporated to achieve a drying effect. The evaporation rate is accelerated by a vacuum in the device. By adding the treated hot nitrogen or the like to remove the evaporated moisture, the drying of the material can be accelerated, the drying effect can be improved, and the crystallization process can be completed under certain conditions, thereby realizing the integrated operation. The filter cake and the washing liquid can be more easily mixed and washed in the washing stage, and the washing is more sufficient.
● Extraction stage: plant extraction, solvent extraction, hot water extraction, etc., without destroying heat sensitive ingredients, while saving energy and reducing consumption.
● Concentration stage: The solvent in the concentration evaporates to increase the concentration of the solution. The liquid solution operates in a unique cross-flow mode to solve the problem of pollution blockage.
●Integrated design simplifies the process, reduces losses, reduces cross-contamination, and improves product quality. A double seal is provided for each sealing point. The sealing material is silicone rubber.
● The filter material is filter cloth, stainless steel metal plates 316L and 304. Choose from 10um to 50um depending on user needs.
●The tank can be reversed and reversed. The speed can be adjusted freely between 1~6 rpm by inverter control.
● Set in place cleaning, in-situ sampling, steam sterilization. Prevent product contamination.
●Operation in closed state, non-destructive leakage, no pollution, suitable for materials with strong irritating odor and toxicity.
●It operates under vacuum and has a high evaporation rate at low temperature. It is especially suitable for the drying of heat sensitive materials and easy oxide materials. It can also be suitable for materials containing solvents and can recover solvents.
●The equipment is compact in structure, small in floor space and easy to operate. The loading amount is large, and the charging coefficient can reach 30%~40%.

Equipment advantages:
▲Multi-function: One device can be used for filtration, mixing, drying, cooling, extraction, concentration, on-line cleaning and disinfection, etc., and the process is quick;
▲There is no stirring paddle in the equipment: the whole body of the tank rotates, which can improve the performance of drying and mixing, and the crystal body is not easily damaged;
▲The possibility of reducing secondary pollution: simple structure, less sealed interface, simple structure to ensure no foreign matter pollution;
▲Reducing excessive transfer steps: eliminating the transportation and transfer between processes to prevent material loss and leakage;
▲ Strong drying ability: superior conditions such as heating vacuum replacement drying, rotary drying, and large heat transfer area. Save energy and shorten the drying cycle.
▲ Uniform mixing: The whole body of the tank is rotated and has no blind zone, which can evenly mix all the products.

Equipment characteristics application
The multi-function vacuum dryer is a new type of dryer that combines mixing-filtration-drying. A condenser, a vacuum pump and a dryer are combined to form a vacuum drying device. (If you do not need to recover the solvent, the condenser can be used.) The machine is advanced in design, easy to clean and easy to operate. Can reduce labor intensity and improve the working environment. At the same time, because the material rotates when the container itself rotates, but the material does not accumulate on the wall, the heat transfer coefficient is high and the drying rate is large, which not only saves energy, but also the material is dry and uniform, and the quality is good. Can be widely used in the drying of pharmaceutical, chemical, food, dyes and other industries.

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  Filter washing vacuum dryer
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  Filter washing vacuum dryer
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  Filter washing vacuum dryer

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