Henan Zhongke Engineering & Technology Co., Ltd.
Zhongke Machinery--Chinese professional manufacturer of rotary kiln !
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Active Lime Production Line Lime Calcination Rotary Kiln Lime Kiln
The rotary kiln produced by Zhongke has the calcining system equipment through technology innovation, which adopts the most advanced hydraulic catch wheel, high precision of measurement piston pump, flow speed control valve, and contact graphite piece of sealing device at home and abroad, In order to improve the degree of automation, kiln head adopts industrial TV watching fire, analog fluorescent screen for process flow, and calcination zone adopts the infrared scanner, directly reflecting the calcination situation in computer . All these new technology has a strong intuitive sense in use, easy to operate. Reliable and stable thermal condition improves the operation rate of the equipment. Compared with the same specification of equipment, the operation rate increases by 10%, the yield increases by 5%-10%, and the heat consumption decreases by 15%.
| Design Capacity(t/d) | 150 | 300 | 600 | |
| Product | Active Lime | Active Lime | Active Lime | |
| Pre-heater | Vertical Pre-heater | Vertical Pre-heater | Vertical Pre-heater | |
| Rotary Kiln | Size(m) | Φ2.5×40 | Φ3.3×50 | Φ4×60 |
| Effective Volume(m3) | 142 | 292 | 575 | |
| Burning temperature | ≤1250 | ≤1250 | ≤1250 | |
| Cooler | Grate Cooler | Grate Cooler | Grate Cooler | |
| Fuel | Gas Coal Dust | Gas Coal Dust | Gas Coal Dust | |
| Heat Consumption (kJ/kg Cao) | 5000-5300 | 5000-5300 | 5100 | |
Qualified limestone stores in silos and be shipped through the pre-heater by the elevator into the silos which is on the top of the pre-heater. The pre-heater on the top of silos is consisted of top and bottom level meter controllers which control the feeding capacity. Then through the feed tube the limestone is distributed to the indoor compartment of the pre-heater.
The limestone in the pre-heater is heated to around 900 ° C by the kiln flue gas of 1150 ° C. At this time, about 30% of the limestone has been decomposition. Then the limestone is put into the rotary kiln by the hydraulic stem. In the rotary kiln the limestone sinters and decomposes into CaO and CO2. Then the decomposed limestone goes into the cooler and is cooled to about 100 ° C by the cold air and then is discharged. The 600 ° C hot air after heat exchange goes into the kiln and combusts with gas. The Exhaust gas blended with the cold wind go to the bag filter through the suction fan and then through the exhaust fan into the chimney.
The limestone out of the cooler enters into the lime storehouse through the vibrating feeder, chain bucket conveyor, bucket elevator and belt conveyor. Whether to carry out screening and other procedures depends on customer requirements.
Parameter of lime stone kiln rotary:
| size (m) | Φ2.5×40 | φ2.8x42 | Φ3x46 | Φ3.2x50 | φ3.2x54 | φ3.6x56 | φ3.8x58 | Φ4x60 | Φ4.3x58 | Φ4.3x64 | Φ4.8x68 |
| Effective Volume (m3) | 142 | 190 | 235 | 292 | 390 | 430 | 505 | 575 | 670 | 738 | 1005 |
| Burning temperature (°C) | 1350/1250 | 1350/1250 | 1350/1250 | 1350/1250 | 1350 | 1350 | 1350 | 1350 | 1350 | 1350 | 1350 |
| capacity (t/d) | 150 | 200 | 250 | 300 | 350 | 400 | 500 | 600 | 750 | 800 | 1000 |