Based on the exprience accumlation of equipment manufacturing and technical improvements, during 2003-2005, we successfully developed a new pre-heater for dolomite and limestone calcining. This kind of new pre-heater brings a decrease of fuel consumption by 40% and output rise by 30%, and can recycle the heat from the exhaust gas and control the dust emission below 50mg/m³. At present, our company has taken a great effect on the limestone and magnesium industry. Our equipments have become preferred choice of the lime and magnesium experts.
1. ZK lime rotary kiln can work with vertical preheater and vertical cooler to achieve the advantages like high use ratio of raw materials, complete calcination, even quality, good quality lime, high capacity output, environmental and energy saving, simple operation and longer working life.
2. ZK lime vertical kiln was manufactured by ZK group with modern new technology, which is an environment protection, save energy, higher machanization and automaticity, quite modern lime kiln. Due to has low energy consumption, less cover area, less investment, wide applicability fuel, and more advantages.
|Main Equipment||Main supporting equipment models and technical and economic indicators|
|Calcination Temperature /℃||1100±50|
|Energy Consumption Index /（kCal/kg）||1200±100||≤1150||≤1100|
|Power Consumption Index /（kW·h/t)||40±5|
|Light and Over burnt Rate /%||≤5|
|Lime Activity /ml||≥340（depends on the composition of limestone）|
|Lime Discharging Temperature /℃||Ambient Temperature +60|
|Limestone Feeding Size /mm||10~20/20~40|
|Emission Concentration /（mg/Nm3）||≤10|
|Annual Working Day / Days||≥340|
|Overhaul Cycle / Year||1~3|
|Labor / Shift||2~3|
|Applicable fuel||Coal powder, Coke oven gas, Semi-coke furnace gas, Converter gas, Blast furnace gas, Calcium carbide furnace gas, Natural gas, Diesel oil, Heavy oil, Liqueﬁed petroleum gas, biomass fuel etc.|
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