System Feature

 ≤10%Water content, Volume reduction＞80%

         Sludge volume further reduction, dry sludge water content ≤10%-50% adjustable, reduction＞80%

1:4.2 Electricity VS Water removal

          Innovative 4 effect Condensation dehumidification and drying technology, 1 KWH electricity can remove 4.2KG water

Odor free without deodorization

           The whole system adopts closed running design, no odor out, no need to install expensive deodorization system as a secondary investment. It can be directly installed in the plant for centralized disposal, and the condensate can be directly discharged without secondary treatment.

No heat loss, 100% heat use

           The system is combined with heat pump heat recovery technology, which has no heat loss and better working efficiency. It is different from the open drying method with continuous moisture removal and continuous high temperature heating.

Safe in low temperature condition, no raising dusts

           Fully closed 40-75 ℃ low temperature operation, no need for nitrogen filling operation, oxygen content in drying process is less than 12%, dust concentration is less than 60g / m3, particle temperature is less than 70 ℃, no potential dust and explosion, discharge temperature is less than 50 ℃, no need for secondary cooling, and it can be directly stored.

Low Temperature Sludge drying principle

    This low-temperature drying system uses the principle of heat pump dehumidification to reduce the volume of the wet sludge on the mesh belt by the way of convection hot air drying. The whole system is fully closed design, and the drying hot air has no heat loss. 

  Using the refrigeration system to cool and dehumidify the wet air from the drying chamber, and recover the latent heat of moisture condensation to reheat the dry air. It is the combination of dehumidification (dehumidification) and heat pump (energy recovery), and it is the recycling of energy in the drying process.

Technical analysis

• Application

     The dryer can directly dry wet sludge with water content of 83% to water content of 10% - 30%, with reduction up to 90%, effective sterilization 90%, low energy consumption, pollution-free, widely used in municipal sludge and industrial sludge (printing and dyeing, papermaking, electroplating, chemical industry, leather, pharmaceutical, etc.) In the later stage, the dry sludge can be treated by gasification, blending, composting or building materials. 

• Innovative Technology

      The 4 effect condensation dehumidification and drying technology is currently the most advanced sludge drying technology. It has obvious advantages such as lower air temperature, better drying capacity and efficiency, more economical operation cost, etc. The comprehensive dehumidification performance ratio is 4.2kg water removed by 1KWH electricity, which is twice the industry standard. 

• Sludge Handling Process Flow

Advantages of Low Temperature Belt Sludge Dryer

Comparison-Middle Temp Belt Dryer

Comparison-Traditional Sludge Dryer