| Customization: | Available |
|---|---|
| Application: | Construction |
| Certification: | CE, ISO |
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Description of New Type Dry Process Cement Production Line:
This new type dry process cement production line is a kind of process mainly used for small, medium and large-scale cement plants. Its preheater employs outside kiln precalciner. Capable of utilizing the waste heat from kiln inlet to decompose raw meal, this line is good at saving electricity and heat. Its closed production line makes it possible to reduce its ambient dust pollution to less than 50mg/Nm3. Besides, its capacity to make use waste heat makes it quite cost efficient for users.
Here in Jiangsu Pengfei Group Co., Ltd, we offer one-stop service for you, including designing, building, suitable equipment providing, installing and debugging, technical serving, and overall contracting. And we have successfully finished the construction of cement production lines of 6000t/d, 5000t/d, 3000t/d, 2500t/d, 1500t/d, and 600t/d.
Production Flow of New Type Dry Process Cement Production Line:
1. Crushing and Pre-homogenizing:
Most of the raw materials, like limestone, clay, iron ores, and coal, should be crushed before their pre-homogenization. Limestone is the primary material in this line, and due to its large particle size and high hardness, its good crushing plays an important role in the whole line. Special stacking and reclaiming technology has been used in the pre-homogenizing process so that raw materials can be better primarily homogenized.
2. Raw Meal Preparing:
Since the raw meal grinding work takes up more than 30% labor force in the whole dry process cement production line, it is quite important to choose appropriate grinding equipment and technological process so that high-quality products can be obtained.
3. Raw Meal Homogenizing:
The raw meal homogenization is a key factor for stable clinker calcination.
4. Preheating and Decomposing:
The preheater is used to preheat as well as decompose raw meal. So the length of the rotary kiln is effectively shortened. And the raw meal can fully exchange heat with the hot gases from the kiln. Because of its rapid and high-efficiency heat transfer, the production efficiency and heat consumption of this production line are greatly improved.
5. Clinker Calcining:
After its preheating and pre-decomposing, the raw meal will be calcined in the rotary kiln, where the generated carbonate will be further decomposed. Meanwhile, a series of solid phase reactions will take place.
6. Cement Grinding:
As the last process, the cement grinding will consume a great deal of electricity. And in this process, special size granule cement will be obtained.
7. Cement Packaging:
The cement can be transported in bulk or in bags.
| Department | Sec. | Equipment name | Specification | Qty | Weight (t) |
| Extraction of Raw Materials |
1 | Apron feeder | Capacity: ~1,000 t/h | 1 | ~85 |
| Hammer crusher |
Capacity:700t/h Feed size: 1,200×1,200×1,500 Product size: 90%≤0~75mm Motor (Power: 800kW) |
1 1 |
~140 | ||
| 2 | Apron feeder | Capacity: ~300 t/h | 1 | ~50 | |
| crusher | Capacity:200t/h Feed size: 600×600×800 Product size: 90%≤0~30mm Motor (Power: 355kW) |
1 1 |
~45 | ||
| Preparation of Raw Materials |
1 | Stacker | Capacity:800 t/h | 1 | ~180 |
| Bridge reclaimer | Capacity:350t/h | 1 | ~250 | ||
| 2 | Stacker | Capacity:300 t/h | 1 | ~60 | |
| Side reclaimer |
Capacity:200t/h | 1 | ~45 | ||
| 3 | Side reclaimer |
Capacity:200t/h | 1 | ~45 | |
| Raw Meal Preparation |
1 |
Roller mill | Capacity : 270t/h Feed size : <80mm Fineness: <12% ( R 80mm) Product moisture:<1% Motor (Power : ~2,600kW) |
1 |
~500 |
| Mill fan | Capacity : 550,000m3/h Pressure :10,000Pa Motor (Power: 2,150kW) |
1 |
~40 |
||
| ID fan | Capacity : 680,000m3/h Pressure : 8,000Pa Motor (Power: 2,000kW) |
1 |
~48 |
||
| Bag filter | Capacity : 680,000m3/h Temp. : 170ºC Filter area: ~9200m2 Outlet dust content :<30mg/ Nm3 |
1 | ~420 | ||
| Bag filter fan | Capacity: 680,000m3/h Pressure: 2,000Pa Motor (Power: 560kW) |
1 |
~35 | ||
| 2 |
Belt bucket elevator | Capacity : 300t/h Height : ~62m Motor (Power: 110kW) |
1 |
~52 | |
| Belt bucket elevator | Capacity : 220t/h(max:280t) Height : ~100m Motor (Power: 200kW) |
1 |
~90 | ||
| Clinker manufacture | 1 | Preheater and precalciner | Capacity :3000t/d Cyclone : C1 :2-Φ5,400mm C2 :1-Φ7,300mm C3 :1-Φ7,300mm C4 :1-Φ7,600mm C5 :1-Φ7,600mm Precalciner:Φ5,800×38,000mm |
1 | ~440 |
| 2 | Rotary kiln | Φ4.3×60m Capacity :3000t/d Piers :3 Inclination: 4% Speed :0.4~4.0r/min Motor (Power:400kW) |
1 |
~550 | |
| Tertiary air duct | Φ2,500mm | 1 | ~75 | ||
| 3 | Clinker cooler | Capacity :3000 t/d ~3,600t/d Cooling area : ~80m2 Inlet temp.:1400ºC Outlet temp. : 65C+amb. temp. Motor (Power:75kW×4) Clinker hammer crusher Motor (Power:110kW) |
1 1 1 |
~200 | |
| EP | Gas volume : 330,000m3/h Inlet temp.: 250ºC(Max. 350ºC) Outlet dust content :<30mg/ Nm3 |
1 | ~280 | ||
| EP fan | Gas volume : 360,000m3/h Pressure :2,300Pa Motor (Power:355kW) |
1 |
~25 | ||
| 4 | Apron bucket conveyor |
Capacity: 250t/h |
1 | ~180 | |
| Cement manufacture | 1 |
Cement mill | Φ4.2×14.0m Product finess: 3400cm2/g Capacity: 90~95t/h Motor (Power:3,550kW×2) |
2 |
~420×2 |
| Separator |
Product : ~90t/h Air volume: 2,500m3/min Product finess: 3,000~3,600cm2/g Motor (Power:110kW×2) |
2 |
50×2 | ||
| Bag filter | Capacity: 157,000m3/h Filtering area: ~2180m2 Dust density of outlet gas: <50mg/Nm3 |
1 |
~85×2 | ||
| Fan | Capacity: 160,000m3/h Pressure: 7,500Pa Motor (Power: 500kW×2) |
1 |
~15×2 | ||
| Cement packing & bulk loading |
1 | Eight-spout rotary packer | Capacity:100t/h | 2 | ~6×2 |
| 2 | Bulk loading system | Capacity : 200t/h | 3 | ~4×3 | |
| Pulverized Coal Preparation | 1 | Coal mill | Vertical type Capacity : 26t/h Feed size: <50mm Product fineness: <12% R90 Feed moisture: max.10% Product moisture: <1% Main motor: ~450kW |
1 | ~110 |
| 4 | Bag filter for classify | Air flow: 110000m3/h Filtering area: ~2180m2 Dust inlet: <1000g/Nm3 Dust outlet: <50mg/Nm3 Pressure loss: 1500~1700Pa |
1 | ~63 |
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