Abstract:

The temperature of the tail gas in air heater of rotary kiln is above 250℃,and the exhaust temperature of the tail gas into the atmosphere is about 170℃,the waste heat should be utilized to avoid wasting energy.Based on the principle of saving energy and waste gas recycling, the factory can make full use of the gas energy to heat the water to the heating temperature by using low-temperature waste heat power recycling technology and setting one gas heat exchanger.