By industry for some time after the mechanical work on the use of such devices have a general understanding , such rotary 
equipment, which is a firing device , can be used to burnt lime , cement, sand, ceramic , so it is easy to solve a problem for 
many years did not answer , cement is how to put cement produced, but every time I see a big cement factory chimney will 
emerge a thick black smoke , although also know that to get something right and air pollution , but does not know how it 
came today put Rotary Dryerwill uncover the mystery of black smoke . The so-called rotary kiln black smoke is unburned pulverized 
coal is exhausted , exhaust color was dark gray or black. Once the black smoke occurs from the kiln to see , short hair ring 
flame , the flame front of the bright white swirls like smoke , like the tip of a part of the flow of gas to the rotary kiln , 
unburned carbon particles in the exhaust gas is discharged with . When black smoke will directly affect the kiln temperature 
and rapid rate of fire point , if not promptly treated , would cause kiln speed fluctuations. Kiln prone to the phenomenon of 
black smoke in the following cases : 1 , rotary kiln temperature is too low , pull the wind is too large. 2 , a little wind , coal 
volume, oxy-acetylene mixed well. 3 , sub-grid wheel does not work well , there is the phenomenon of the flow of coal . After 
the ring kiln serious impact on ventilation, coal combustion is not good. 4 , coal quality is poor, especially in the low volatile 
matter , water large , thick fineness case . Depending on the circumstances, may take a different approach , respectively , 
generally to reduce coal handling mainly to the principle of no black smoke . The above two paragraphs nicely describes the 
phenomenon of black smoke appeared kiln , and those cases will result in a rotary kiln black smoke . Specializing in the 
production of rotary kiln in Henan YuFeng Heavy Equipment : The main products are : lime kiln , rotary kiln , ceramic sand | 
sand rotary kiln , rotary kiln calcium aluminate powder , laterite nickel ore rotary kiln, rotary kiln magnesium , zinc oxide 
rotary kiln , bauxite rotary kiln, rotary kiln oil proppant , disc granulator, wind swept coal mill , ball mill, preheater , burners, 
coolers , etc. Welcome new and old customers to our company to negotiate! Reproduced please specify Henan YuFeng 
Heavy Machinery