rotary kiln incinerator

Rotary kiln incinerators are mainly used for heat treatment of solid waste (such as solid waste, waste, sludge, etc.), burning organic matter into harmless carbon dioxide and water, while treating harmful substances in organic waste, achieving the goal of reducing waste volume and environmental pollution.

The working principle of a rotary kiln incinerator is to place solid waste in a rotating rotary kiln while providing sufficient oxygen inside the kiln to support combustion reactions. In high-temperature environments (typically between 800 ° C and 1200 ° C), organic matter in organic waste is burned into carbon dioxide and water vapor, while inorganic components are converted into ash or other solid residues.

Rotary kiln incinerators typically consist of the following main components:

1. Rotary kiln:
It is the main part of the incinerator, usually a long and inclined cylindrical structure. Solid waste is fed into a rotary kiln and continuously exposed to high temperatures through rotation to promote combustion and pyrolysis processes.

2. Burner:
Located at one end of the rotary kiln, it is used to provide fuel and oxygen, forming a burning flame. The design of the burner can affect combustion efficiency and stability.

3. Flue Gas Treatment System:
Used to treat the waste gas generated during the incineration process. The exhaust gas treatment system includes an exhaust gas collection system, exhaust gas purification equipment (such as dust collectors, desulfurization devices, denitrification devices, etc.), and emission pipelines. These devices can effectively remove harmful substances from exhaust gases and reduce their impact on the environment.

4. Control System:
Monitor and adjust parameters such as fuel supply, oxygen supply, and rotary kiln speed to ensure stable system operation and meet environmental emission standards. The control system is also responsible for monitoring key parameters such as temperature and pressure of the rotary kiln to ensure safe operation.

The operation steps of a rotary kiln incinerator usually include the following stages:

1. Preparation work:

Inspect key components such as rotary kiln, burner, exhaust gas treatment system, and control system to ensure proper operation of the equipment.

Prepare the solid waste required for incineration and ensure that the classification, treatment, and loading of the waste have been completed.

2. Ignition and preheating:

Start the burner, ignite the fuel and provide sufficient oxygen to form a stable flame.

Start the rotation of the rotary kiln and gradually increase the temperature inside the kiln for preheating. At this stage, waste is added to the kiln.

3. Main combustion stages:

When the temperature inside the rotary kiln reaches the combustion temperature required for incineration, a large amount of solid waste is added.

Waste is continuously heated, burned, and pyrolyzed in the rotary kiln, and organic matter is converted into harmless gases and ash.

4. Waste gas treatment:

The exhaust gas is collected through the exhaust gas treatment system and treated with dust removal, desulfurization, denitrification, etc. to ensure that the emissions meet environmental standards.

5. Monitoring and regulation:

Continuously monitor key parameters such as temperature, pressure, and speed inside the rotary kiln to ensure stable system operation.

Adjust parameters such as burner and rotary kiln speed based on monitoring results to maintain optimal combustion conditions and incineration efficiency.

6. Stop operation:

When the waste combustion is completed or the operation needs to be stopped, gradually reduce the fuel supply and oxygen supply, while gradually reducing the rotation speed of the rotary kiln.

Turn off the burner and ensure that any remaining fuel in the rotary kiln is completely burned and extinguished.

Shut down the exhaust gas treatment system and control system, inspect and maintain the equipment.

When operating a rotary kiln incinerator, it is necessary to strictly control the combustion process and exhaust emissions to ensure the safe and stable operation of the system and meet environmental standards. Through continuous optimization and improvement, the rotary kiln incinerator will continue to play its important role and contribute to environmental protection and sustainable development.