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  • Product: Two-Girder Type Active Lime Kilns

Two-girder-type active lime kilns are fit for many kinds of fuel, waste less energy and have high activity. For simple structure and Iow cost, they are widely used for iron and steel, and chemical industries to calcine high quality active lime, using blast furnace gas, coke oven gas and coal dust to raise lime quality and save energy.

This kind lime kiln has been registered, gained the national patent and to be used widely in large iron and steel enterprises and chemical industries throughout the whole country.

I. Technical features:

1. Production capacity: lOOt/d to 600t/d. Operation range is 70% to 100%. Take the 300t/d kiln as example. It can be regulated within 180t/d-300t/d range without influencing quality and consumption targets.
2. Grain size: 30mm to 60 mm; 40mm to 80mm, Scale factor 1:2.
3. Kinds of fuel: natural gas, oil, coal dust, coke oven gas, coal gas of low heat value(e.g pure blast furnace gas ) and mixed fuel of all kinds of fuel(gas and gas, gas and liquid gas and solid, liquid and solid and so on).
4. Lime: fine lime and high activity (reaching 360ml, 4N HCL Ten minutes). The ratio of lime stone under-firing and over-baking is 3%-6%.
5. Low heat wastage: they can make full use of heat energy. Fuel gas will be preheated by primary air passing. Cooled lime is preheated as secondary air passes. Fuel is burned
completely and fuel heat is utilized fully. Ratio of heat consumes is 800-900kal/kg.
6. High work ratio: they can operate continuously for 48 to 50 weeks each year.
7. Calcination way: use our new technology, three-way pressure system to reduce lime raw burned rate and raise lime activity.



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