Preheater System
 
The new preheater system is a comprehensive upgrading system based on the research of the existing pre-calcination system along with the actual situation of the raw material and fuel in some cement plants, including technology, environmental performance and design optimization, to low resistance and low consumption, to lower investment costs, reduce the emissions of harmful components such as NOx, SO2 and so on. The comprehensive utilization of resources will come true. It helps the cement industry improve the cleanness level¡¢heat recovery rate and waste utilization and develop toward the ecological direction, so that the economic indicators and environmental indicators of preheater system will be enhanced completely.
 
Technical Characteristics of the new Preheater system  
 
¡ñProductivity of 1000t/d¡«12000 t/d
 
¡ñGreat adaptability to different raw material and fuel. Simple structure and easy to operate.
 
¡ñDifferent solutions for different fuels, e.g. bitumite, anthracite, inferior coal, heavy oil, crude oil, natural gas.
 
¡ñEquipped with specialized designing of by-pass system to deal with the primary fuel of high-alkali or high-chlorine.
 
¡ñUsing fractional combustion method, the denitrogenation rate is 50%; the adoption of SNCR technique, the denitrogenation rate is increased to 70%.
 
¡ñTechonlogy of disposing daily garbage , industrial waste, sludge, toxic waste .Changing the carbide slag, phosphoric acid slag, sludge and other types of industrial waste into harmless materials to eliminate environment pollution.
 
Structure Characteristics
 
¡ñLarge capacity, high efficiency on heat conversion; 
 
¡ñAdaptability to various kinds of coal quality, heavy oil and natural gas.
 
¡ñProper layout of the calciner burner along with the reasonable distribution of tertiary air, to reduce NOx emission.
 
¡ñCyclone with high separation efficiency, low pressure loss. Sliced inner tube
 
¡ñMade of new heat resistant materials, simple replacement and long service life.

 

                                             Preheater Data Sheet

 

¡¡ Capacity(t/d) Calcining Rate Outlet Temp(°C) Strucure of Inner Tube Model of Calciner
1000t/d
Single String
1000 ¡¡ 340 ¡¡ TC-D.D
2000t/d
Single String
2000 330 ¡¡ TDF
2000t/d
Double String
2000 330 ¡¡ TC-D.D
2500t/d
Single String
2500 325 Steel Plate Welding TDF/TFD/TSD
2500t/d
Double String
2500 325 TDF
2750t/d
Double String
2750 325 Segment Slice Type TDF
3000t/d
Double String
3000 325 TDF/TWD/TFD
4000t/d
Double String
4000 325 ¡¡ TC-D.D/TDF/TFD
5000t/d
Double String
5000 92% 325 ¡¡ TSD/TDF
5500t/d
Double String
5500 320 ¡¡ TTF
6000t/d
Double String
6000 320 ¡¡ TDF
10000t/d
Double String
10000 93% 300 ¡¡ NST