-Henan Zhengzhou Mining Machinery

Inquiry

Introduction

Lime Kiln is the ideal equipment to produce quicklime by the calcination of limestone (calcium carbonate). We could provide technological solutions and complete production equipment for 50-800TPD quicklime (active lime) production line.

With 60 Years development, we gained different approaches of lime production process, such as energy saving rotary lime kiln process, traditional long rotary lime kiln process, mixed burining vertical lime kiln process, low heat value gas vertical lime kiln process, high heat value vertical lime kiln process etc. Usually, it has two types: lime rotary kiln and lime vertical kiln.

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.

Features

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.

Technical Parameter

Capacity (t/d)	150	200	250	300	350	400	500	600	800	1000	1200
Main Equipment	Main supporting equipment models and technical and economic indicators
Vertical Preheater	YRQ04	YRQ06	YRQ06	YRQ08	YRQ08	YRQ10	YRQ12	YRQ12	YRQ14	YRQ18	YRQ20
Rotary Kiln	Φ2.5×40m	Φ2.8×43m	Φ3.0×48m	Φ3.2×50m	Φ3.3×52m	Φ3.6×55m	Φ3.8×58m	Φ4.0×60m	Φ4.3×65m	Φ4.9×70m	Φ5.1×72m
Vertical Cooler	LSF36		LSF44				LSF56		LSF80		LSF112
Calcination Temperature /℃	1100±50
Energy Consumption Index /（kCal/kg）	1200±100								≤1150		≤1100
Power Consumption Index /（kW·h/t)	40±5
Limestone: Lime	1.7~1.78:1
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.