How to dry urban sludge?

  Urban sludge is a mud like substance generated during urban life and the operation and maintenance of municipal facilities. It comes from urban sewage treatment plants, drainage pipelines, dredging and construction mud, and contains a large amount of microorganisms and organic matter. Cities generate a large amount of sludge every day, which needs to be properly disposed of. Sludge treatment technology includes three aspects: sludge concentration, dewatering, and drying. Adding coagulants to sewage and using a sludge dewatering machine can reduce the moisture content of sludge to 75% -80%. However, if you want to further reduce the moisture content of sludge, efficient sludge drying technology is required. So, how to dry urban sludge?

  The urban sludge dryer is developed for the characteristics of high moisture content, high viscosity, high water holding capacity, and low calorific value. Using a rotary dryer, the moisture content of the dried sludge can be reduced to 20%, fully meeting the standards for sludge landfill and further incineration treatment. The device has mature technology, stable operation, and easy operation and maintenance. The sludge rotary dryer is mainly composed of a rotating body, a feeding plate, a transmission device, a support device, a sealing ring, etc. The new type of material copying plate has multiple functions such as guiding, equalizing, and lifting, which can evenly distribute materials on the entire surface of the radial section of the dryer, make the material curtain thin, uniform, and complete, and fully contact with the hot air flow, achieving the goal of fully utilizing thermal energy.

  Characteristics of urban sludge dryer

  1. Low cost steam, biomass, natural gas, coal, etc. can be used as heat sources.

  2. A concise digital control panel that is easy to operate and maintain.

  3. The weight of sludge can be reduced by about 60%, the volume can be reduced by 4-5 times, and the transportation cost of sludge will be significantly reduced.

  4. The moisture content of sludge decreases and the calorific value increases.

  5. Higher drying temperatures can sterilize and deodorize sludge.

  Zhengzhou Jiutian is a professional manufacturer of urban sludge drying machines. Please feel free to contact us at any time for more equipment information.