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The Low Temperature Belt Type Sludge Drying Machine is a breakthrough technology in the field of sludge treatment in recent years. By integrating the dual advantages of low-temperature heat pump dehumidification and high-efficiency hot air drying, it realizes energy saving and cleaning of the sludge dehydration process. The low-temperature belt sludge dryer is based on a mesh belt conveyor structure. The wet sludge is evenly laid on the stainless steel mesh belt, and the water is gradually evaporated by the convection heat exchange principle. Compared with the traditional high-temperature drying process, its low-temperature characteristics can not only avoid the decomposition of organic matter in the sludge, but also effectively retain the physical strength of the particles after drying, laying the foundation for subsequent resource utilization.
The core innovation of the whole system lies in the fully enclosed energy cycle design. The hot and humid air generated during the drying process is introduced into the built-in refrigeration system, and the evaporator is cooled to below the dew point, so that the water vapor in the air condenses and precipitates, while releasing a large amount of latent heat. After being absorbed by the refrigerant, the heat is converted into high-temperature heat energy by the compressor, and then transported to the condenser to heat the fresh air sent into the drying chamber. This design not only avoids the heat loss of traditional drying equipment, but also achieves the energy efficiency multiplier effect through the heat pump.
The technical value of the low-temperature belt sludge dryer lies in the innovative energy utilization - the heat pump dehumidification dual-effect characteristics are deeply integrated with the drying process, and the system's comprehensive energy efficiency ratio is improved by recovering the latent heat and sensible heat in the wet air.
