Lime kiln is a kiln machine equipment used for high-temperature burning of lime. The kiln is composed of refractory materials, which are used to calcine limestone and convert it into quicklime powder CaO and carbon dioxide CO2 under high temperature standards. Limestone and natural materials are loaded into the lime kiln (if the gas fuel is exhausted through the pipeline and fed into the burner), and after heating, they start to decompose at 850 degrees Celsius. They are calcined at 1200 degrees Celsius, cooled with water, and then discharged outside the kiln. That is, the production and manufacturing of quicklime powder products. Different kiln shapes have different heating, forging, water cooling, and ash unloading methods. However, the processing standards for several points are the same: high quality raw materials and high cost-effectiveness of lime; Natural materials have high heat generation and low total consumption; Degree distribution of limestone particles is proportional to calcination time; The specificity of quicklime powder is inversely proportional to the calcination time and temperature.
The key components of a lime kiln are the kiln body, feeding device, fabric device, ignition device, ash discharge device, household appliances, instrument panel control device, ash removal device, etc. Different lime kilns have different construction methods and calcination methods, and the production process is basically the same. However, there are significant differences in the use value of machinery and equipment. Perhaps there are undoubtedly differences in the actual application effects.
Kilns have many different ways of classification. According to the appearance of the kiln, it can be divided into square kilns, circular kilns, etc; According to the types of handicrafts, they can be divided into lime kiln, porcelain kiln, concrete kiln, Laminated glass kiln, brick kiln, etc; According to the characteristics of flame fluidity, it can be divided into horizontal flame kilns, ascending flame kilns, inverted flame kilns, horseshoe shaped flame kilns, etc; According to the commonly used types of natural materials, they are divided into coal burning kilns, fuel kilns, liquefied gas kilns, etc; According to the transportation method of raw materials, it can also be divided into kiln car kilns, roller bottom kilns, push plate kilns, etc. More general is the classification based on the physical situation of the calcined handicrafts and the integration of Lean manufacturing.
The kiln type of lime kiln is widely used in the decoration industry. Many of its original names were used in the cement industry, and concrete kilns for burning cement clinker. In recent years, there have been various excellent kiln types suitable for lime production and manufacturing in China based on the introduction of many overseas technologies and the development and design of various aspects.
