Advanced Quick Lime Complete Plant/Factory of Lime Vertical Kiln
Procuction Technology of Quick Lime Plant
1. Energy Saving Rotary Lime Kiln Process
Rotary kiln is one kind of furnace which is widely used for calcined active lime production in the world. It is also widely used in many industries such as construction materials, metallurgy, chemical and environmental protection. The energy-saving rotary lime kiln has the advanced structure and stable operation. It adopts the vertical preheater with low pressure loss which can effectively improve the preheating effects. The raw materials’ decomposition rate in the vertical preheater can reach to 30% before entering into the rotary kiln. It is also suitable for different fuels including pulverized solid fuel, liquid fuel and gas fuel. The final lime products have high activity. This kind of rotary kiln already have been widely used in the steel industry and chemical industry.
2. Mixed Burning Vertical Lime Kiln Process
The qualified raw materials and solid fuels are mixed uniformly according to a certain proportion and then sent to the vertical kiln through a single bucket elevator for calcination. After calcination, the final lime products are discharged from the bottom of the vertical kiln through a discharge device to the conveyor, and the conveyor sends the final lime products to the storage silo. The hot flue gas generated by calcination will firstly go into the dust collecting system, and then the clean flue gas will be emitted through chimney to the atmosphere.
1. Vertical preheater is equipped at the kiln inlet. It will use the hot air from rotary kiln to preheat the raw material which also can partially decomposed inside the preheater. This will increase the 40% of output capacity and 30% of thermal efficiency. Vertical cooler is equipped at the kiln outlet. It will use the high temperature from the calcined material to heating the secondary air to 600℃. Kiln outlet adopts integration design for vertical cooler and kiln outlet hood, and it needs less construction land and good sealing.
2. Good dust collecting treatment at kiln inlet. The cyclone dust collector and pulse bag filter can control the dust emission is lower than China standard. High level of automation requires less workers, the adjusting of production system operation, control and alarm are controlled at control room by PLC.
International project case (Part)
We have rich project cases on the quick/active lime plant.
Iran Ardakan 200TPD Active Lime Project
Iran Semnan 150TPD Active Lime and Hydrated Lime Project
South Korea POSCO 15000tpa Mg project Dolomite Calcination Project
Russian Saratov 150TPD Chalk Lime Reconstruction Project
Sudan 100TPD Vertical Lime Kiln Project
Nepal 125TPD Vertical Lime Kiln Project
Nepal 100TPD Vertical Kiln Dust Collecting System Reconstruction Project
Tanzania 100TPD Magnesite Calcination Project
Thailand-Bangladesh 150TPD Lime Project from Waste CaCO3 Dusty in Sugar Production Plant
Turkey ESAN Magnesium Plant Dolomite Calcination Project
Turkey KUMAS Magnesite/Dolomite Sintering Project
Iran AZAR 200TPD Magnesite/Dolomite Sintering Project