Features and advantages of municipal sludge dryer

The three-stage multi loop municipal sludge dryer is a large-scale drying equipment with energy-saving characteristics, which can be adapted to the drying operation of municipal sludge, sewage pipe sludge and sewage treatment plant sludge. Aiming at the high humidity and high viscosity materials, it adopts drying processes such as "Rotary harrow three cylinders multiple-loop", "automatic turning harrow sectional combination", "DC vortex plus AC reciprocating", etc. It is one of the new products of ZJN company. What are the characteristics and advantages of this equipment? I believe that this is also a problem to many users who pay close attention to dryer equipment. Next, let the editor of ZJN give us some introduction.

Characteristics of three-stage multi loop municipal sludge dryer:

1. Wet sludge and heat source enter the drying room from the same side. First, adopt the way of downstream drying to evaporate a large amount of water.

2. The material and hot air in the dryer cylinder are transferred from the inner cylinder to the outer cylinder, and the drying mode is also changed into convection and countercurrent, with more thorough heat exchange, make full use of heat energy to evaporate internal moisture in sludge.

3. The special three sleeve structure, the W + S feeding mode and the AC reciprocating drying technology of " three steps forward and two steps back" greatly increase the utilization rate of heat energy and the material stroke of the equipment. Compared with the traditional equipment, the drying operation with more output is completed in a smaller space.

4. The dryer is made of wear-resistant and high temperature resistant stainless steel with long service life and guaranteed quality.

5. Natural gas, fuel oil, coal, steam, biomass fuel, boiler tail gas and other combustible gases can be used as heat sources for heating, with a wide range of options.

Advantages of municipal sludge dryer:

1. Output

A single sludge drying production line can reach more than 100 tons per day, which is suitable for large-scale sludge treatment enterprises with large capacity.

2. Operating cost

Energy saving drying technologies such as "low temperature and large air volume" and "boiler flue gas utilization" can be adopted to reduce the operation cost of the equipment and increase the volume heat transfer coefficient to several times of the traditional dryer.

3. Stable performance

The equipment can operate continuously for 24 hours without intermittence, with stable and reliable performance, small failure rate and strong anti overload ability. The special structure of tug and block wheel is adopted to reduce the horizontal thrust generated during the operation of the equipment.

4. Material adaptability

The "rotary rake crushing device", "combined lifting system", "movable grate wing plate" and other devices designed for high humidity and high viscosity materials make the high humidity sticky sludge break up, fall and distribute automatically in the cylinder, solve the problem of high humidity sticky sludge agglomeration and adhesion, ensure the drying effect and drying strength, and meet the drying of high humidity sticky materials with different moisture content, it applicable in textile sludge, electroplating sludge, municipal sludge, industrial sludge, leather sludge, paper-making sludge and other materials drying.

5. Small floor area

The length of dryer equipment is only one-third of that of traditional single barrel equipment, the structure is relatively compact, the surface area is reduced by about 30%, and the plant area is fully utilized.