Indirect-fired rotary kiln has a combustion chamber on the peripheral barrel. The heat generated by the combustion of flue gas is transferred to the material through the cylinder. The material is calcined at high temperatures, and the calcined product is discharged from the discharge valve. The exhaust gas is treated or emptied or utilized. The indirect-fired rotary kiln is suitable for the production of various materials requiring indirect continuous heating.
Our indirect-fired rotary kiln can use different fuels for heating, in addition to traditional coal, oil, gas, it can also use electricity for heating. Among them, the electric heating rotary kiln is in huge demand and is highly praised by the market. One is because the heat source is clean and does not cause environmental pollution, and the other is because the power supply is more convenient and efficient.
When the indirect-fired rotary kiln is used to calcine the catalyst and molecular sieve. It can make s sure that the purity of the product. This is because the multi-zone temperature can be set coordinatedly in order to complete the reaction such as dehydration or unit cell shrinkage.
The indirect-fired rotary kiln can recycle the condensed water, combustible gas, and biochar left by the calcined sludge. The indirect rotary kiln chemically reacts to sludge in a closed, anaerobic, non-combustible, and high-temperature state. Under the reaction of dry distillation and thermal decomposition, sludge goes through pyrolysis, dehydrogenation, thermal condensation, gasification, and carbonization, so that the water in the sludge becomes condensed water, and the organic matter in the sludge is converted into a combustible gas, which is then recycled.
Indirect fired rotary kiln burns toxic hazardous waste. The toxic waste is incinerated in a sealed space, and the generated toxic gas can be fully recycled.