In recent years, with the improvement of everyone's awareness of environmental protection, the sludge treatment and disposal industry has also developed rapidly. At present, high-humidity and high-viscosity sludge will be dehydrated and dried with professional sludge dryer equipment, and then the dried sludge can be used for building materials, fuel, agricultural use, etc., to realize the resource reuse of sludge disposal. So what are the advantages and disadvantages of the rotary sludge dryer equipment? The following editor will give you a brief introduction.

1. Drum sludge dryer equipment

From the appearance, the drum sludge dryer is a horizontal cylindrical cylinder, but from the internal structure, the drum sludge dryer can also be divided into: single drum type, three drum type, etc., different types Each device has advantages and disadvantages. Among them, the three-cylinder sludge dryer is formed by nesting three layers of concentric drums with different diameters, which has a smaller footprint and higher thermal efficiency.

1. Drying principle

The drum sludge drying equipment adopts direct heating and drying technology. The equipment is equipped with a special dispersing device and a lifting device, which quickly breaks up the large wet material entering the dryer, so that the dispersed wet material particles fill the entire drying area. Space, full contact and mixing with hot air, so as to accelerate the evaporation of water on the surface of wet mud, so that it forms a non-sticky and non-sticky loose shape. After the wet sludge and hot air are dried in parallel or countercurrent and reciprocating, it changes from high humidity to non-humidity, from high viscosity to non-stickiness. end discharge.

2. Advantages and disadvantages

The daily output can reach more than 100 tons, the sludge drying degree is good, the total heat transfer coefficient is high, and the drying speed is fast, but the civil construction investment cost is relatively high, and it is suitable for large-scale drying projects with large processing volume and high sludge water content and strong viscosity.