The Individual Application of Various Rotary Kilns
7 December, 2012 at 6:02 am in Computer
Rotary kiln 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.
1: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
2:Limestone rotary kiln:Limestone rotary 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
Rotary kiln:Rotary kiln 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.
Features of Rotary Kiln
Our rotary kiln is made up of the shell, driving device, supporting device, the supporting device with thrust roller, sealing device at kiln tail, movable kiln head and the combustion device, etc.
The rotary kiln calcining system equipment made has adopted the advanced hydraulic thrust roller device, the high measuring precession plunger pump, the variable speed adjusted valve, the contact graphite block sealing device and the other national advanced technologies. In order to raise up automation degree, the industrial TV has been used at the kiln head for monitoring of kiln, the simulation phosphor screen has been used for display of process flow; the infrared scanning system has been adopted for calcining zone to directly reflect the burning conditions on the computer. With the use of these new of these new technologies, it is direct in vision, convenient in operation and reliable in use. Therefore, the thermal condition can be stabilized and the running rate of equipment can be raised. Compared to same sized equipment, its running rate has been raised 10% up, production has been increased 5-10% and heat consumption has been reduced 15% down.
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
Our lime kiln features in, convenient and reliable control of the production process, less wearing parts, high rates of operation, the Lime kiln also has strong structure, stable operation, low energy consumption, high-quality products,large capability from the kiln and so on advantages, we can also offer advanced efficient shaft preheater, five grade cyclone preheater
Our Limestone rotary kiln features in, convenient and reliable control of the production process, less wearing parts, high rates of operation, the Lime kiln also has strong structure, stable operation, low energy consumption, high-quality products
3:Cement rotary kiln:there are two types of cement kiln-dry process cement kiln and wet process cement kiln-that mainly used to calcine cement clinker. Metallurgical and chemical kiln is mainly used in metallurgical industry, refractory plant and chemical factory. The structure of Cement rotary kiln, operate conveniently and reliably in life, less wearing parts, high rate of operation, it is the equipment to calcine high-grade cement in cement plant.As the professional manufacturer of complete sets of mining machinery, such as vibrating screen, stone production line, Henan Hongxing is always doing the best in products and service.