In the traditional horizontal flow box dryer, the air flow only flows on the surface of the material. The disadvantage is that the heat transfer coefficient is low, the heat utilization rate is poor, the material drying time is long, and due to the structural defects, the "GMP" medicine cannot be fully complied with. Production specifications. To overcome the above drawbacks. Changzhou Drying of the Yangtze River has designed and developed a flow-through dryer according to advanced foreign technologies.
working principle:
This machine is a part of the fresh air by the fan through the initial, medium and high efficiency filter, to achieve 100,000 purification, the evaporative heat exchanger, the air heated to a certain temperature, filtered hot air purification, and then from the left side of the manifold to each The layers allow hot air to pass through each layer of dried material. The moist air is drawn from the inclined air duct under the baking plate and then a part of the wet air is discharged out of the oven through a centrifugal fan. The other part is divided into air and continuously heated to achieve the purpose of drying.
Performance characteristics:
Each cycle of hot air passes through a medium or high-efficiency filter, which effectively prevents deterioration of the entrained materials in the air during the cyclic heating process. The contamination of medicines is in full compliance with the pharmaceutical production specifications.
Through-flow ovens have a greater capacity than advection-type drying, and the charge of each layer of material is more than three times that of advection ovens.
The through-flow oven has a large area, high efficiency, several times more capacity than the advection oven, and lower cost.
It is suitable for the drying of various granular and massive materials.
Easy to operate, easy to clean and replace, low failure rate.
Air inlets and outlets have air filters that do not contaminate the material and affect its quality.
The oven heating heat source can be steam, heat transfer oil or electric heating.

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