The raw material for the production of lime: all natural rocks, such as limestone, chalk, dolomite, limestone, etc., which are mainly composed of calcium carbonate, can be used to produce lime. Will be mainly composed of calcium carbonate rock, calcined at appropriate temperature, exclude the decomposition of carbon dioxide, resulting in calcium oxide (CaO) as the main component of the product is also called lime lime.
Lime production: the original lime production process is the limestone and fuel (wood) layered laying, firing for a week to get calcined. In modern times, mechanical, semi mechanized kiln, rotary kiln, boiling furnace and other equipment are used for production. The calcination time is correspondingly shortened, and the production of lime with rotary kiln only takes 2~4 hours, and the production efficiency can be increased by more than 5 times compared with the vertical kiln. There have also been cross flow type, double slope type and oil burning circular kiln and short rotary kiln with preheater, etc., with remarkable energy-saving effects, such as coal, coke, heavy oil or liquefied petroleum gas, etc..
A rigid inorganic cementitious material consisting mainly of calcium oxide (CaO). Lime with limestone, dolomite, chalk, shells of calcium carbonate (CaCO) the content of the product is high, by 900 to 1100 DEG C and calcining. Lime is one of the earliest cementitious materials used in human life. Lime is widely used in civil engineering and can be used in medicine in our country. To this end, the ancient theme of "lime" as the theme of poetry, singing the praises of the ages.
