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
Process flow introduction: Qualified limestone is deposited in the storage bin, hoisted by the elevator and transported into the top bin of preheater. The top storage bin of the pre-heater is consisted of top and bottom level gages controlling the feeding. And then through the feed tube the limestone is distributed uniformly to all the inside chambers of the pre-heater.
The limestone in preheater is heated to about 900°C by 1150°C kiln gas, about 30% decomposition, pushed into rotary kiln by the hydraulic push rod, and sintered and decomposed into CaO and CO2 in the roatary kiln. After decomposition, the produced limestone goes into the cooler, cooled down to 100°C by the entered cold air and discharged out. The 600 ° C hot air after heat exchange goes into the kiln and combusts with gas. The Exhaust gas goes into the bag filler through draught fan when added into the cold air, and enter the chimney through the exhaust fan.
The lime out of the cooler is transported into lime storehouse by vibration feeding machine, chain conveyor, bucket elevator, belt conveyor according to the customer’s request for whether making the screening other procedures.
| Design Capacity(t/d) | 150 | 300 | 600 | |
| Product | Active Lime | Active Lime | Active Lime | |
| preheater | Vertical Pre-heater | Vertical Pre-heater | Vertical Pre-heater | |
| rotary kiln | size (m) | Φ2.5×40 | Φ3.3×50 | Φ4×60 |
| Effective Volum (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/kgCao) | 5000-5300 | 5000-5300 | 5100 | |
Rotary Kiln refers to rotating calcination kiln, belongs to construction material equipment. According to different materials, rotary kiln can be divided into cement kiln, metallurgy chemical kiln and lime kiln. The cement kiln is used for makeing cement clinker and there are dry and wet methods to make cement. Metallurgy chemical kiln is applied in metallurgy industries and ironworks for lean iron ore, chromium ore and ferronickel ore calcination. Lime kiln is mainly used for calcine dolomite and active lime which is used in steel plant and ferroalloy factory.
About Us
Henan Zhongke Engineering & Technology Co., Ltd. is an import and export company, which is specialized in mining machinery, metallurgical machinery and building materials equipment manufacturing. The head quarter located in Zhengzhou High-Tech zone.The company business scope include: jaw crusher, impact crusher, hammer crusher, cone crusher, ball mill, rod mill, ceramic ball mill, vibrating feeder, vibrating screen, belt conveyor, mineral ore separating machine, magnetic separator, flotation machine, classifier, spiral chute, rotary dryer, rotary kiln. We also can offer sand and stone production line, crushing and grinding plant, ore beneficiation line, A A C (aerated concrete block) production plant, small cement plant, active lime production line and so on.