Limestone calcination kiln of rotary lime kiln for active lime

Limestone calcination kiln of rotary lime kiln for active lime

Limestone introduction:

Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).

Rotary lime kiln  is the key equipment for the lime production process in the building materials, its main role is calcining raw materials with high calcium carbonate, such as limestone, dolomite, chalk, shells and other materials to produce lime.

Lime production process:

Limestone in the lime industry is a general term for rocks that contain eighty percent or more of calcium or magnesium carbonates including marble, chalk, oolite, and marl. Further classification is by composition as high calcium, argillaceous (clayey), silicious, conglomerate, magnesian and other limestones, and dolomite[3] Uncommon sources of lime are coral, sea shells, calcite, and ankerite. Limestone is extracted from quarries or mines. Part of the extracted stone, selected according to its chemical composition and granulometry, is calcinated at about 1,000 °C (1,830 °F) in different types of lime kilns to produce quicklime according to the reaction: CaCO3 + heat → CaO + CO2.

Before use, quicklime is hydrated, that is combined with water, called slaking so hydrated lime is also known as slaked lime, and is produced according to the reaction: CaO + H2O → Ca(OH)2. Dry slaking is when quicklime is slaked with just enough water to hydrate the quicklime but remain as a powder and is referred to as hydrated lime. In wet slaking enough water, but not too much, is added to hydrate the quicklime and form a putty referred to as lime putty.

Lime application:

Because lime has an adhesive property with bricks and stones, it is often used as binding material in masonry works. It is also

used in whitewashing as wall coat to adhere the white wash onto the wall.

It is the raw material for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and mortar.

Pulverized limestone is used as a soil conditioner to neutralize acidic soils.

Is crushed for use as aggregate—the solid base for many roads as well as in asphalt concrete.

Rotary lime kiln  technical parameter:

Rotary lime kiln shipping:

About Derui Machinery:

Derui machinery Co., Ltd is located in Gongyi city of henan province, our main products include following:

Stone crusher series: jaw crusher, impact crusher, cone crusher, etc.

Sand-making equipment series: VSI-IV sand-maker, PCL sand-maker, sand-washer, etc.

Beneficiation equipment series: Ball mill, magnetic separator, flotation machine, high frequency screen, spiral classifier, rotary dryer, shaking table,jigger machine, mixer, pendulum feeder,concentrator,spiral chute, etc.

Feeding and screening equipment series: vibrating screen, vibrating feeder, etc.

Rotary kiln: Rotary lime kiln , cement rotary kiln, etc.

Accessory equipment: belt conveyor, bucket elevator, screw conveyor, etc.

How to visit us ?

If you want to visit our factory, please note our city name, Zhengzhou City, Henan Province, China(mainland)

Our air port name is : Zhengzhou Xinzheng International air port.

Train station name is: Zhengzhou (Zhengzhou north) train station