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Recovery and utilization of waste heat from kiln drying

Kiln drying waste heat recovery and utilization refers to the recovery and utilization of waste heat from the exhaust gas emitted by the kiln for drying materials, thereby improving energy utilization efficiency and reducing production costs.
Technical principle of waste heat recovery and utilization in kiln drying
The technical principle of waste heat recovery and utilization in kiln drying is to use a heat exchanger to transfer the heat from the kiln exhaust gas to fresh air, thereby heating the fresh air. The heated fresh air is used to dry materials, which can improve drying efficiency and reduce energy consumption.
Application of Waste Heat Recovery and Utilization in Kiln Drying
The technology of waste heat recovery and utilization in kiln drying can be applied to various kiln drying systems, including:
Brick and tile kiln drying
Ceramic kiln drying
Drying of building materials kilns
Chemical kiln drying
Food drying
Drying of agricultural and sideline products
The advantages of recycling and utilizing waste heat from kiln drying
The recovery and utilization of waste heat from kiln drying have the following advantages:
Energy saving: It can effectively utilize the waste heat in the kiln exhaust gas, reduce energy consumption, and lower production costs.
Environmental protection: It can reduce exhaust emissions and reduce environmental pollution.
Improving drying efficiency: can improve drying efficiency, shorten drying time, and improve product quality.
Common methods for recovering and utilizing waste heat from kiln drying
The common methods for recovering and utilizing waste heat from kiln drying include:
Waste heat recovery from flue gas: Using a heat exchanger to transfer the heat in the flue gas to fresh air for drying materials.
Kiln body waste heat recovery: Using the waste heat of the kiln body to heat fresh air for drying materials.
Waste heat drying kiln: Directly use kiln exhaust gas to dry materials.
Notes on the recovery and utilization of waste heat from kiln drying
When recovering and utilizing waste heat from kiln drying, the following precautions should be taken:
Choose a suitable waste heat recovery device: The appropriate waste heat recovery device should be selected based on factors such as kiln type, drying materials, and residual heat.
Ensure heat exchange efficiency: The heat exchange device should be regularly inspected and maintained to ensure heat exchange efficiency.
Prevent corrosion: Measures should be taken to prevent corrosion of the waste heat recovery device.
With the continuous improvement of energy conservation and emission reduction requirements, the technology of waste heat recovery and utilization in kiln drying will be increasingly widely applied.