Rotary dryers,Rotary kiln

  With the enhancement of national economic and people's consciousness of environmental protection, urban sewage processing industry has been developed rapidly. Production of municipal sewage sludge increases day by day. The disposal, development and utilization of Sludge are paid more and more attention by people. The drying treatment of sludge treatment makes the agricultural use, incineration, reduction of landfill site and other disposal methods possible.
  This dryer is a kind of new energy saving product which adopts pump to dry the sludge by hot air circulating cooling. Heat pump dehumidification uses a refrigeration system and heat air by heat and humidity of air cooling and dehumidifying at the same time through the principle of heat pump recovery air moisture condensation latent heating air a device. In short, a heat pump dehumidification is dehumidification (dry and wet) combined with heat pump (energy charge) of the device. 
  By taking advantage of the principle of latent heat of condensation of water heated air to dry the material, dehumidification drying uses a heat pump refrigeration system to enable objects of drying chamber cooling and dehumidifying humid air through the heat pump at the same time by taking advantage of the principle of latent heat of condensation of water heated air to dry the material. Dehumidifier combines with moisture and heat eliminating pump, which achieves circulating utilization of energy in the process of drying. It is different to conventional hot air drying. Dried air circulates closely in drying chamber and dehumidifier dryer in pump dryer. In traditional hot air dryer, heat air by using heat source and discharge air which has absorbs moisture. The energy utilization rate is very low.
  Dehumidification Recuperated regenerator is set in the dehumidification heat pump in order to reduce the temperature of air which enters evaporator and increase the temperature of air which enters the condensator. Regenerative cycle makes the cooling volume of evaporator used for reducing air temperature (invalid cooling process) and used for increasing cooling volume in heat and moisture eliminating, which makes the best evaporation temperature and best moisture amount eliminated increase in heat pump. The regeneration heat cycle can save about over 30% energy.