High availability low price rotary kiln for cement kiln and clinker plant
cement plant introduction
We provide the full range service including design, manufacturing, installation. We design and manufacture equipment for new type dry method cement production line, for which the capacity varies from 50t/d to 3000t/d
Mined limestone is delivered to the crusher for crushing by the belt conveyor, limestone after crushing ,clay, iron powder etc will be ground into powder by ball mill or vertical mill, and then transported by air delivery chute to raw meal homogenization silo for storing and further material mix. Raw meal shall get into the preheating decomposition system after homogenization where decomposition rate is about 95%, and raw meal is calcined into clinker in the rotary kiln, the formation of clinker. Clinker, gypsum and mixture is ground into qualified fineness cement in the cement mill. Powder classifier is adopted to adjust the fineness of cement, realizing energy saving production. Cement packing machine and automatic loading machine are used for bagged cement delivery, and cement bulk device for cement canning leaving factory.
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 (raw material) 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.
- Clinker Cooling
the high tempreture clinker from rotary kiln, after cooling by cooling machine, is transported to the next process:storage and cement grinding machine.
7. 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. - Cement Packaging:
The cement can be transported in bulk or in bags.
Equipment Supply for cement production line
1. Crushing Equipment : Jaw Crusher, Impact Crusher , Hammer Crusher ,Cone Crusher, Compound Crusher ect.
2.Grinding Mill : Ball Mill , Remond Mill , Vertical Mill , Grinding Machines
3. Rotary Kiln / Machnical Vertical Shaft Kiln
4. Preparation Equipments: :Powder Concentrator , Vibrating Feeder, Megnetic Separator ect.
5. Preheater
6. Dyer , Cooler ,
7. Elevator , Belt Conveyor & Bucket Equipments
8. Cement Packing Equipments
9. Classifier , Dust Collector
OUR ADVANTAGE
1. Cement rotary kiln adopts adjustable speed driving with high efficient and low power consumption.
2. The fuel consumption of unit product is low and large capacity.
3. Stable mechanical performance and transmission, accurate speed control and easy control the calcination temperature.
4. Gears: single or double. The rotating speed is controlled by regulating motor, DC motor or variable frequency and speed regulation motor. Be reliable, energy-saving and efficient.
5. Support device: advanced shaft structure, automatic temperature measuring device and electrical heating device.
Technical Parameters of Rotary Kiln
| Product specifications(m) | Kiln dimensions | Capacity(t/d) | Rotation speed(r/min) | Motor power(kw) | Total weight(t) | Note |
| Diameter(m) | Length(m) | Obliquity(%) |
| Φ2.5×40 | 2.5 | 40 | 3.5 | 180 | 0.44-2.44 | 55 | 149.61 | Kiln with shaft cyclone preheater |
| Φ2.5×50 | 2.5 | 50 | 3 | 200 | 0.62-1.86 | 55 | 187.37 | ---- |
| Φ2.5×54 | 2.5 | 54 | 3.5 | 204 | 0.48-1.45 | 55 | 196.29 | ---- |
| Φ2.7×42 | 2.7 | 42 | 3.5 | 320 | 0.10-1.52 | 55 | 198.5 | ---- |
| Φ2.8×44 | 2.8 | 44 | 3.5 | 400 | 0.437-2.18 | 55 | 201.58 | Outside disassemble kiln |
| Φ3.0×45 | 3 | 45 | 3.5 | 500 | 0.5-2.47 | 75 | 210.94 | ---- |
| Φ3.0×48 | 3 | 48 | 3.5 | 700 | 0.6-3.48 | 100 | 237 | Outside disassemble kiln |
| Φ3.0×60 | 3 | 60 | 3.5 | 300 | 0.3-2 | 100 | 310 | Alumyte-alumina forge kiln |
| Φ3.2×50 | 3.2 | 50 | 4 | 1000 | 0.6-3 | 125 | 278 | Outside disassemble kiln |
| Φ3.3×52 | 3.3 | 52 | 3.5 | 1300 | 0.266-2.66 | 125 | 283 | Kiln with preheater precalcine |
| Φ3.5×54 | 3.5 | 54 | 3.5 | 1500 | 0.55-3.4 | 220 | 363 | Kiln with preheater precalcine |
| Φ3.6×70 | 3.6 | 70 | 3.5 | 1800 | 0.25-1.25 | 125 | 419 | Generating kiln for using ofterheat |
| Φ4.0×56 | 4 | 56 | 4 | 2300 | 0.41-4.07 | 315 | 456 | Kiln with preheater precalcine |
| Φ4.0×60 | 4 | 60 | 3.5 | 2500 | 0.396-3.96 | 315 | 510 | Kiln with preheater precalcine |
| Φ4.2×60 | 4.2 | 60 | 4 | 2750 | 0.4-3.98 | 375 | 633 | Kiln with preheater precalcine |
| Φ4.3×60 | 4.3 | 60 | 3.5 | 3200 | 0.396-3.96 | 375 | 583 | Kiln with preheater precalcine |
New dry process cement production line (300-1500t/d) configuration
| Capacity | 300t/d | 700 t/d | 1000 t/d | 1500 t/d |
| Pre-heater | C1 | 2-Φ2500 | Φ3500 | Φ4800 | 2-Φ4000 |
| C2 | Φ3600 | Φ4800 | Φ4800 | Φ5800 |
| C3 | Φ3600 | 2-Φ3700 | Φ5200 | Φ5800 |
| C4 | Φ3600 | Φ4800 | Φ5200 | Φ6200 |
| C5 | Φ3600 | Φ4800 | Φ5200 | Φ6200 |
| Pre-calciner | Specification | Φ2200 | Φ2800 | Φ4800 | Φ5200 |
| Rotary kiln | Specification | Φ2.8×44m | Φ3×48m | Φ3.2×50m | Φ3.5×54m |
| Capacity | 12.5t/h | 30t/h | 42t/h | 63t/h |
| Calcination temperature (℃) | 1450 | 1450 | 1450 | 1450 |
| Raw mill | Specification | Vertical roller mill Φ1700 | Dry mill Φ3.2×7+1.8m | Dry mill Φ3.5×10m | HRM2800 Vertical roller mill |
| Capacity | 30t/h | 50t/h | 85t/h | 130~160t/h |
| Motor power | 400kW | 1000kW | 1250kW | 1250kW |
| Cement mill | Specification | Φ2.4×13m Open circuit | Φ3×11m Closed circuit | Φ3.2×11m Closed circuit | Φ4.2×13.5m Closed circuit |
| Capacity | 22t/h | 42t/h | 64t/h | 95t/h |
| Motor power | 800kW | 1250kW | 1400kW | 3550kW |
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High Availability Rotary Kiln For Cement And Clinker Plant Low Power Consumption Images
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