The gypsum sludge dryer is a low-speed stirring dryer which is equipped with a stirring paddle inside the equipment to make the wet material fully contact with the heat carrier and the hot surface under the agitation of the blade, thereby achieving the purpose of drying. The structure is generally horizontal. , Double or four-axis, special wedge-type stirring heat transfer blades have high heat transfer efficiency and self-cleaning function of heat transfer surface.
Gypsum sludge dryers are divided into hot air and conductive. The hot air type is in contact with the dried material by a heat carrier (such as hot air) and is dried. In the conductive type, the heat carrier is not in direct contact with the material to be dried, but the hot surface is in contact with the material. The advantage of conduction type is that the material is not easily polluted, the displacement is small, the thermal efficiency is high, and the volume is relatively small, which is conducive to saving energy and preventing air pollution.
Performance characteristics of gypsum sludge dryer:
1. The blade dryer system has a low cost: a large heat transfer surface in the effective volume of the unit shortens the processing time and the device size becomes smaller. It greatly reduces the building area and building space.
2. Wide range of processing materials: Different heat media can be used to process both heat sensitive materials and materials requiring high temperature processing. Commonly used media are: water vapor, heat transfer oil, hot water, cooling water, etc.
It can be operated continuously or intermittently and can be applied in many fields.
3. Small environmental pollution: Do not use the carrying air, the dust material is rarely entrained. The solvent evaporation of the material is small and easy to handle. Closed loops can be used for contaminated materials or for conditions requiring recovery of solvents.
4. Low operating costs: the structure. The amount of wear is small and the maintenance cost is low.
5. Stable operation: Due to the special compression-expansion stirring effect of the wedge-shaped blade, the material particles are fully in contact with the heat transfer surface. In the axial interval, the temperature, humidity and mixing gradient of the material are small, thus ensuring Process stability.