Principle of operation
The process of closed-loop rotary kiln system is similar to that of open rotary kiln drying system. Because the materials to be treated need to be pyrolyzed or contain organic solvents such as methanol, ethanol, toluene, DMF, etc., the system adopts the process of drying or roasting the tail gas with moisture, condensing, emptying a small part, recycling most of it to the air inlet, and then drying and roasting.
Performance characteristics
Compared with the open rotary kiln drying system, the closed-loop rotary kiln system has the following remarkable characteristics:
◎ The atmosphere is safe.
◎ Pyrolysis tail gas or solvent can be recovered, which has good economic benefits and accords with green circular economy.
◎ After pyrolysis, the tail gas is condensed and then discharged, so the environmental protection pressure of tail gas treatment is small.
◎ The whole system needs to be explosion-proof.
Applied range
Widely used in drying or pyrolysis of waste salt and catalyst materials.
