The new dry process cement production line with a capacity of 1500t/d built by Chaeng adopts scientific production technology on design and new advanced equipment, in order to improve equipment level of the production line and achieve design index.
|Application||Cement Plant, Thermal Power Plant|
|Annual Output||450,000 tons|
|Process Type||New Dry Process|
|Blaine Fineness||3300-3800 cm²/g|
1. Powerful Crush, Scientific Stockpiling
The new dry process cement production line with capacity of 1500t/d, build by our company, is rationally equipped with advanced equipment for grinding the majority of raw materials. The limestone will be crushed in a TKPC16.18 single-section hammer crusher, whose feeding size is 800 mm, production capacity is 250t/h, and annual utilization rate is 25.51%.
This cement production line design adopts scientific material piling and taking technology, to achieve the initial raw material homogenization. Thus the stock ground has the function of both storage and homogenization.
2. Low Energy Consumption in Grinding, Reasonable Homogenization
The energy consumption in cement grinding process accounts for more than 60% of the whole production line, therefore, it has great significance in ensuring product quality and reducing energy consumption by using high efficiency and energy saving GRM series vertical roller mill to deal with all kinds of material.
The cement plant machinery is equipped with φ15×50mMF homogenization silo which integrates raw meal storage and homogenization. The raw material reserve is 6500t, with 2.86d storage life.
3. Preheating before Calcination, High Efficiency and Energy Saving
Raw materials are sent into a φ3.5×54m rotary kiln to be calcined after preheating and precalcining in the cyclone preheater. That is conducive to improving the production efficiency of kiln system, shortening rotary kiln length, and reducing the heat consumption of clinker calcining.
4. Energy Saving in Grinding, Easy Operation
Clinker grinding equipment in our 1500t/d cement production line uses GRMK40.41 (2 + 2) cement vertical mill developed by our company. It makes use of exhaust stem from preheater outlet (300-330) as the drying heat source. Cement vertical roller mill has the characteristics of simple technological process, safe and reliable operation, high grinding efficiency, low power consumption, less maintenance, and short debugging cycle, etc.
|Limestone Crush||Apran Feeder||B1250×1150mm||Feed size: 800m
|Hammer Crusher||TKPC16.18||Feed size: 800mm
Discharged Particle size: ≤25mm
Power: 350kW Output: 250t/h
|Limestone Homogenizing||Stacker||Stack Capacity: 600t/h
Reclaiming capacity: 250t/h
|Raw Material Grinding||Vertical Roller Grinding Mill||GRMR30.31||Feed size: ≤50mm
Final product: 12%-15%≥80μm
|Conditioning tower||φ7.5×26m||Blast capacity: 400000m³/h
Feed side: 340 ℃
Discharged side: 150-200 ℃
|High temperature fan||Quantity of flow: 400,000m³/h
Total head: 7500Pa
Temperature: 340 ℃
|Preheat & Calciner system||Cylone Preheater
|Calcining system||Rotary kiln||φ3.5×54m||Capacity: 1500t/d
Rotating speed: 0.396-3.96
|Cooling system||Inflatable beam grate cooler||LBTF1700||Capacity: 1500t/d
Effective area: 61.8m²
|Clinker grinding||Cement Vertical Roller Grinding mill||GRMK40.41||Blain test: 3300-3800cm²/kg
|Cement packing||Rotating packing machine ×2||Weight Measuring: ±0.25kg/bag
Packing Capacity: 90t/h