Introduction

Lime rotary kiln is used to produce quicklime through the calcination of limestone (calcium carbonate). Lime rotary kiln is specialized design for production of active lime.

Our 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. This kiln is very suitable for limestone calcination for industries like metallurgy, chemical, construction materials and etc.

We also supply complete set of equipments for lime production line with capacity from 50 tpd to 800 tpd: rotary kiln / vertical kiln, preheater, cooler, bag filter, crusher, ball mill, conveyor, bucket elevator, vibrating feeder, etc.

Features

1. According to the character of limestone and its calcination requirement, the structure of kiln inlet and outlet sections has been optimized. It can resolve the problem of material returning back to kiln inlet and the leakage of dust.

2. Evenly heating for limestone, low rate of less calcination and over calcination. Especially suitable for the high activity lime for steel making.

3. Technical configuration is optional: matched vertical preheater can use the high temperature from rotary kiln to preheating the limestone from room temperature to decomposition condition; matched vertical cooler can cooling down the high temperature of lime in the shortest time, and process can increase the activity of lime and also easy for transportation and storage.

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 (m)	Φ2.5×40	Φ2.8×43	Φ3.0×48	Φ3.2×50	Φ3.3×52	Φ3.6×55	Φ3.8×58	Φ4.0×60	Φ4.3×65	Φ4.9×70	Φ5.1×72
Vertical Cooler	LSF36		LSF44				LSF56		LSF80		LSF112
Calcination Temperature	1100±50 (℃)
Energy Consumption Index	1200±100 (kCal/kg)								≤1150 (kCal/kg)		≤1100 (kCal/kg)
Power Consumption Index	40±5 (kW·h/t)
Limestone: Lime	1.7~1.78:1
Light and Over burnt Rate	≤5%
Lime Activity	≥340ml（depends on the composition of limestone）
Lime Discharging Temperature	Ambient Temperature +60 (℃)
Limestone Feeding Size	10~20/20~40 (mm)
Emission Concentration	≤10 (mg/Nm3)
Annual Working Day	≥340 (Days)
Overhaul Cycle	1~3 (Year)
Labor	2~3 (Shift)
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.