The direct coal burning hot air system consists of efficient pulverized coal combustion system, high temperature gas purification chamber and air mixing chamber.The pulverized coal in the bunker is uniformly transported to the entrance of the pneumatic screw pump by a certain amount of quantitative conveyor. Through the air-locking effect of the pneumatic screw pump, the mixture of the pulverized coal and the high-pressure air provided by roots blower is transported to the high-efficiency burner, and the combustion is controlled in the combustion chamber.The high temperature flue gas produced by pulverized coal combustion enters the high temperature gas purification chamber.The clean hot air (~1000℃) coming out of the purification room is mixed with a certain amount of cold air, and mixed into the hot air of the required temperature of the material drying into the drying equipment (such as spray tower, rotary kiln, oven, oven, air dryer, fluidized bed, etc.) to dry the material.The hot air temperature can be adjusted according to the process needs. The continuous heating air temperature stability is ±5℃.Our company for the customer design of heat exchange type coal-fired hot air furnace system is stable and reliable, according to the specific requirements of customers to design, is your first choice for plant construction, transformation!
Product features and technical advantages:
(1) Full combustion, no black smoke in hot air, clean operating environment;Environmental standards, no secondary pollution;
(2) High cleanliness of hot air and dust content of 30 ~ 120mg/Nm3;
(3) thermal efficiency > 95%;
(4) Convenient regulation of hot air temperature, adjustable below 900℃, continuous heating air temperature stability ±5℃;
(5) The hot air furnace is easy to operate and easy to adjust.The combustion chamber is provided with a lime mouth, which is convenient for ash cleaning.
(6) The equipment is safe to use and has no risk of explosion;
(7) The equipment has strong durability, low operating cost and simple maintenance;
(8) The hot air will be fed into the drying equipment without increasing the discharge outlet in the production process
