Model JRF series coal fuel hot air furnace manufactured by our factory is a vertical cylinder metallic case coal fuel indirect heating hot air furnace.It was designed by China Agricultural Engineering Institute.Through five times improving.Its quality is in the leading position in China.It had been approbated as China paten product on February 2,1989.The furnace integrates combustion and heat exchange in its onebody and adapts the newest indirect heating technology with the part of high temperature to carry out heat exchange.Its heat efficiency can reach as high as 65~80%。Its features are quick in temperature raising,compact,convenient in installation,reliable in operation,cheap in rice(Compared with 1 ton of boiler,its price of heating system is half only).Being adapted the measure of high temperature resistant,its life is longer than calandria type hot aer furnace greatly.The temperature of sent hot air will be 300℃.If adapt special design,the temperature of sent hot air will be 500~800℃.Meanwhile being adapted vertical scouring type radiation pieces and negative pressure suction to remove smoke,the place of heat exchange does not accumulate dust.So it does not need to clean and its thermal performance is stable.It can use all kinds of coal or firewood as fuel.Being wquipped secondary air in device,its combustion is fully.All technical and economic indexes are in leading place domestic.
The furnace is a universal hot air heating device.It can be equipped with all kinds of drying equipment.It is wide used for damp removing of agricultural products such as grain,seeds,feedstuff,fruits,dehydrated vegetables,pasania fungus,agaric,white fungus,tea,tobacco leaf;foodstuff,medicines,chemical raw materials,products of light and heavy industry.It can also used for all kinds of facilities to heat and warehouse to remove damp.
At present the furnace has ten varieties and three series.Its heat to be output is
1.045×105KJ/h 1.672×105KJ/h 3.344×105KJ/h
6.270×105KJ/h 1.254×106KJ/h 1.672×106KJ/h
2.508×106KJ/h 3.344×106KJ/h
6.688×106KJ/h 8.360×106KJ/h |