Lime kiln in the context of "Rotary kiln"

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⭐ Core Definition: Lime kiln

A lime kiln is a kiln used for the calcination of limestone (calcium carbonate) to produce the form of lime called quicklime (calcium oxide). The chemical equation for this reaction is: CaCO3 + heat → CaO + CO2

This reaction can take place at anywhere above 840 °C (1,540 °F), but is generally considered to occur at 900 °C (1,650 °F) (at which temperature the partial pressure of CO2 is 1 atmosphere), but a temperature around 1,000 °C (1,830 °F) (at which temperature the partial pressure of CO2 is 3.8 atmospheres) is usually used to make the reaction proceed quickly. Excessive temperature is avoided because it produces unreactive, "dead-burned" lime.

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👉 Lime kiln in the context of Rotary kiln

A rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process. Materials produced using rotary kilns include:

They are also used for roasting a wide variety of sulfide ores prior to metal extraction.

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Lime kiln in the context of Agricultural lime

Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate. Additional chemicals vary depending on the mineral source and may include calcium oxide. Unlike the types of lime called quicklime (calcium oxide) and slaked lime (calcium hydroxide), powdered limestone does not require lime burning in a lime kiln; it only requires milling. All of these types of lime are sometimes used as soil conditioners, with a common theme of providing a base to correct acidity, but lime for farm fields today is often crushed limestone. Historically, liming of farm fields in centuries past was often done with burnt lime; the difference is at least partially explained by the fact that affordable mass-production-scale fine milling of stone and ore relies on technologies developed since the mid-19th century.

Some effects of agricultural lime on soil are:

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Lime kiln in the context of Black Country Living Museum

The Black Country Living Museum (formerly the Black Country Museum) is an open-air museum of rebuilt historic buildings in Dudley, West Midlands, England. It is located in the centre of the Black Country, 10 miles (16 km) west of Birmingham. The museum occupies 10.5 hectares (26 acres) of former industrial land partly reclaimed from a former railway goods yard, disused lime kilns, canal arm and former coal pits.

The museum opened to the public in 1978, and has since added over 50 shops, houses and other industrial buildings from around the metropolitan boroughs of Dudley, Sandwell and Walsall and the City of Wolverhampton (collectively known as the Black Country); mainly in a specially built village. Most buildings were relocated from their original sites to form a base from where demonstrators portray life spanning 300 years of history, with a focus on 1850–1950.

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Lime kiln in the context of Limeburners Bay

Limeburners Bay, one of numerous bays in Port Phillip, lies in the southwest and adjoins Corio Bay, which abuts Geelong, the second largest city in Victoria, Australia. The bay was named after lime kilns, located on the east side of Corio Bay, used to burn limestone for making cement.

In the 1820s, explorers Hume and Hovell ended their journey in the area of Limeburners Bay before returning to Sydney. It is a tide-dominated estuary that runs off Hovells Creek. The area is popular for recreational fishing and hiking and birdwatching. Geelong Grammar School overlooks the bay.

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Lime kiln in the context of List of ovens

This is a list of oven types. An oven is a thermally insulated chamber used for the heating, baking or drying of a substance, and most times used for cooking or for industrial processes (industrial oven). Kilns and furnaces are special-purpose ovens. Kilns have historically been used in the production of pottery, quicklime, charcoal, etc., while furnaces are mainly used in metalworking (metallurgical furnace) and other industrial processes (industrial furnace).

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