The principle of heat recovery and utilization in high-temperature kilns is to use a heat exchanger to extract heat energy from the exhaust gas to generate hot air, hot water or steam, thereby achieving energy saving. The main methods for recovering and utilizing heat from high-temperature kilns are as follows:
Gas-to-gas heat exchange: Gas-to-gas heat exchange uses a heat exchanger to transfer the heat in the exhaust gas to fresh air or other gases. Gas-to-gas heat exchange is one of the most commonly used methods of heat recovery and utilization in high-temperature kilns.
Gas-water heat exchange: Gas-water heat exchange uses a heat exchanger to transfer the heat in the exhaust gas to water. Gas-water heat exchange can be used to generate hot water or steam for process water, domestic water, heating, etc.
Gas-solid heat exchange: Gas-solid heat exchange uses a heat exchanger to transfer the heat in the exhaust gas to solid materials. Gas-solid heat exchange can be used to heat solid materials for drying, smelting and other processes.
The effect of heat recovery and utilization in high-temperature kilns depends on the following factors:
Types of Kilns and Processes: Different types of kilns have different heat recovery potentials.
Temperature and flow rate of waste flue gas: The higher the temperature and flow rate of waste flue gas, the greater the heat recovery amount.
Type and performance of heat exchanger: The type and performance of heat exchanger have a great impact on heat recovery efficiency.
High-temperature kiln heat recovery and utilization has the following advantages:
Reduce energy consumption: High-temperature kiln heat recovery and utilization can reduce the energy consumption of the kiln and reduce energy consumption.
Improve energy utilization efficiency: High-temperature kiln heat recovery and utilization can improve energy utilization efficiency and reduce energy waste.
Reduce pollutant emissions: Heat recovery and utilization in high-temperature kilns can reduce pollutant emissions from the kiln and improve environmental quality.
Heat recovery and utilization in high-temperature kilns is an effective energy-saving and emission-reduction measure and has broad application prospects.