Rotary kiln will produce waste gas in the process of operation, which will cause serious pollution to our living environment and air. However, the fuel used in rotary kiln will produce a large amount of waste gas, which will cause serious harm to air quality when discharged into the air, so the treatment of waste gas becomes particularly important.

Rotary kiln uses circulating fan control system and waste gas treatment system for waste gas treatment. The circulating fan can improve the heat utilization rate and temperature uniformity in the kiln. Multiple groups of circulating fans are set in the heating section and constant temperature section of the kiln. Each circulating fan works independently and does not interfere with each other The same cooling section is equipped with cold air fans, and all circulating fans are controlled and adjusted by multiple frequency converters.

Moreover, the front end of the rotary kiln body is provided with a waste gas discharge pipe, and a plug-in regulating valve is set in the pipe to regulate the waste gas flow. The waste gas and heat treatment powder move in reverse direction, and the waste heat is utilized to achieve a certain energy saving effect. The whole set of equipment is composed of furnace body, transmission system and temperature control system, so in the whole production process, in order to prevent environmental pollution, in addition to the waste gas treatment, there is no direct use of refractory fiber in the furnace of its internal rotary kiln, so as to prevent the powder heat treatment products from being polluted by high temperature crystallization and pulverization of refractory fiber. Therefore, the treatment of waste gas is inseparable from the cooperation of multiple systems. If the waste gas from the production of external heating rotary kiln is directly discharged, it will cause adverse conditions to our surrounding environment.

In order to reduce the exhaust gas emission of rotary kiln, the equipment uses the circulating fan to treat the exhaust gas, which can operate independently to reduce the interference between the equipment, and install the exhaust gas discharge pipe according to the installation, which can reduce the pollution to the surrounding environment and improve the use efficiency of the equipment.