The new dry process cement production line with capacity of 1500t/d built by Chaeng( Xinxiang Great Wall Machinery Co., Ltd). adopts scientific production technology on design and new advanced equipment, in order to improve the equipment level of the production line and ensure the realization of design index.
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 crushing uses TKPC16.18 single-section hammer crusher, whose feeding size is 800 mm, production capacity is 250 t/h, and annual utilization rate is 25.51%.
This 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.
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 line is equipped with φ15×50mMF homogenization silo which integrates raw meal storage and homogenization. The raw material reserve is 6500 t, with 2.86 d storage life.
Preheating before Calcination, High Efficiency and Energy Saving
Raw materials are sent into φ3.5×54m rotary kiln to be calcined after preheating and precalcining in the cyclone preheater. That is conducive to improve the production efficiency of kiln system, shorten rotary kiln length, and reduce the heat consumption of clinker calcining.
Energy Saving in Grinding, Easy Operation
Clinker grinding equipment uses GRMK40.41 (2 + 2) cement vertical milldeveloped 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.
| lowsheet | Product | Model | Specification |
|---|---|---|---|
| Limestone Crush | Apran Feeder | B1250X1150mm | Feed size: 800m Power: 30kW Output: 350t/h |
| 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 Moisture: ≤7% Power: 1000kW Output: 120t/h |
| Conditioning tower | φ7.5x26m | 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℃ Power: 1250kW |
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| Preheat & Calciner system | Cylone Preheater Calciner furnace |
1 | C1: 2-Φ4300mm C2: 1-Φ5600mm C3: 1-Φ5600mm C4: 1-Φ5900mm C5: 1-Φ5900mm Calciner: Φ6300mm |
| Calcining system | Rotary kiln | φ3.5x54m | Capacity: 1500t/d Pitch: 3.5% Rotating speed: 0.396-3.96 Power: 220kW |
| 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 Power: 2500kW Output: 115-125t/h |
| Cement packing | Rotating packing machinex2 | Weight Measuring: ±0.25kg/bag Packign Capacity: 90t/h |
