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Rotary kiln:Sand making machine is rotary calcine kiln that belongs to building materials equipment, which can be divided into Clinker rotary kiln,Limestone rotary kiln,Cement rotary kiln,metallurgical and chemical kiln according to different materials.To maximize efficiency, our rotary kiln incorporates the advanced hydraulic thrust roller device, high measuring precession plunger pump, contact graphite block sealing device, variable speed adjusted valve, and other nationally advanced technologies.
Sand making machine is the main equipment for calcining cement clinker. It has the simple structure and reliable operation, at the same the production process of the rotary kiln can be controlled easily.Rotary kiln is used for calcimine of high aluminum vandal ochre in refractory material industry; for calcimine of calotte and aluminum hydroxide in aluminum manufacturer; for claiming of chrome sand ore and chrome powder ore in chemical plant. Clinker rotary kiln:Clinker rotary kiln is the main equipment for sintering cement clinker.As a kind of indispensable equipment for calcining cement clinker, this industrial furnace is applicable in the cement industry, metallurgy industry and chemical industry, etc. According to the nature of materials, the vertical kiln can be classified as cement rotary kiln, metallurgy chemical kiln and lime kiln. Characteristic Feature of Clinker rotary kiln: a.Temperature can reach 1600-1700 degree. b. Feeding size 80-20mm.
Limestone rotary kiln:Limestone quarry crusher kiln can bake active line and dolomite, and thus are popular in steel factory and ferroalloy factory. Structure features of Lime stone kiln: Used to produce quicklime by the calcination of Limestone rotary kiln (calcium carbonate) The chemical equation for this reaction is: CaCO3 + heat → CaO + CO2. This reaction takes place at 900°C (at which temperature the partial pressure of CO2 is 1 atmosphere), but a temperature around 1000°C (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. Rotary kilns started to be used for lime manufacture at the start of the 20th century and now account for a large proportion of new installations. The early use of simple rotary kilns had the advantages that a much wider range of limestone size could be used, from fines upwards, and undesirable elements such as sulfur can be removed.