Characteristics of sludge drying technology at low temperature

The technology of sludge drying at low temperature is in line with the new situation of low-carbon environmental protection and comprehensive utilization of resources. Then its characteristics are:

1. Low temperature drying has a wide range of application and realizes the goal of "resource utilization"

This technology can be widely used in municipal, printing and dyeing, papermaking, chemical industry, leather, electroplating and other industrial sludge drying. The dried sludge can be used as mixed burning fuel, building materials, biofuels, etc. to realize the reuse of resources.

2. Energy saving and emission reduction

Low temperature drying method is adopted to greatly reduce the energy demand in the drying process. At the same time, it can also use the waste heat of the enterprise as the heat source, which can easily realize no investment in heat supply and no cost of heat use, effectively reduce greenhouse gas emissions, save energy and reduce emissions, achieve more in one stroke;

3. Safety and environmental protection

Due to the low temperature drying with negative pressure and full seal, the thermal energy required in the drying process is low, and there is no potential safety hazard such as explosion, no odor overflow, and no need to install complex deodorization device. The flue gas and dust produced after drying can be filtered and purified by bag type dust remover.

4. High drying efficiency

The sludge with moisture content of about 80% can be directly dried to about 10% without subsection treatment. The drying process will not affect the organizational composition of the material, which is suitable for later resource utilization.

5. Intelligent control

Low temperature drying adopts automatic control mode, with high level of intelligence, simple and convenient operation, stable continuous operation and reduced artificial labor; meanwhile, the water content of the discharge can be adjusted arbitrarily;

6. Durable

The low-temperature sludge drying equipment adopts stainless steel and other corrosion-resistant materials, with long service life, no mechanical wear during operation, no vulnerable and consumable parts, and easy to use and manage.

7. Innovative technology

Low temperature design, more suitable for a wide range of energy saving.