Industrial sludge dryer is a kind of equipment specially used for processing industrial sludge. It evaporates the water in the sludge through the principles of heat conduction, heat convection and heat radiation to achieve the purpose of drying. It is used to dry high-humidity materials such as activated sludge, sludge, oil sludge, papermaking sludge, printing and dyeing sludge, leather sludge, electroplating sludge, municipal sludge, biological fermentation residue, etc.

The dried industrial sludge has the following uses:

1. Compost or fertilizer: Part of the dried industrial sludge, especially the sludge containing nutrients such as nitrogen, phosphorus and potassium, can be used as compost or organic fertilizer after treatment.

2. Incineration fuel: The dried industrial sludge has a certain calorific value, usually between 1300-1500 kcal, which can be mixed with coal and burned in the boiler, thereby reducing fuel costs. This method can not only realize the resource utilization of sludge, but also alleviate the problem of energy shortage to a certain extent.

3. Building materials: Dried industrial sludge can also be used to make building materials, such as bricks. Sludge can also be used as an admixture in cement plants to produce cement or other building materials.

4. Metal recovery: For industrial sludge containing heavy metals such as electroplating sludge, after being treated with professional equipment, metal elements such as copper, iron, zinc, chromium, nickel, etc. can be smelted and extracted. This can not only reduce the pollution of sludge to the environment, but also obtain considerable economic benefits.

5. Biochemical fiberboard manufacturing: Under alkaline conditions, the dried sludge can be prepared into biochemical fiberboard after a series of physical and chemical changes such as heating, drying and pressurization. This board has certain application prospects in the field of building materials.