6.0x95m 12000t/d Rotary Kiln In Cement Plant Energy Saving
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Detailed Product Description
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Energy-saving Rotary Kiln used in cement plant
Products Description Cement Rotary KilnRotary Kiln belongs to building material equipment, according to
different materials, which can be divided into cement kiln,
metallurgy chemical kiln and lime kiln. Cement kiln is used for
making cement clinker and there are dry and wet methods to make
cement clinker. Metallurgy chemical kiln is widely used for
magnetic roasting of poor iron ore and oxidizing roasting of chrome
and nickel in the steel factory; backing high-alumina mine in the
refractory material factory; baking chamotte and alumina in the
aluminum factory and baking chrome ore and chrome powder in the
chemical plant. The Lime Kiln is used for roasting active lime in
steel works and ferroalloy plants and light roasting dolomite. The rotary kiln is a cylindrical vessel, inclined slightly to the
horizontal, which is rotated slowly around its axis. The material
to be processed is fed into the upper end of the cylinder. As the
kiln rotates, the materials gradually move down towards the lower
end, and may undergo a certain amount of stirring and mixing. Hot
gases pass along the kiln sometimes in the same direction as the
process material (co-current), but usually in the opposite
direction (counter- current). The hot gases may be generated in an
external furnace, or may be generated by a flame inside the kiln.
Such a flame is projected from a burner-pipe (or'firing pipe')
which acts like a large burner. The fuel may be gas, oil or
pulverized coal. Rotary kiln
Cement Rotary Kiln Burner/Gypsum Rotary Kiln technical
characteristics:
In the Wet Process, the kiln system is fed with liquid slurry, the
water then being evaporated in the kiln. In the Semi-Wet Process, raw material is prepared as a slurry, but a substantial proportion (50-80%) of the water is mechanically removed, usually by filtration, and the resulting "filter cake" is fed to the kiln system. In the Dry Process, the kiln system is fed with dry raw meal powder. In the Semi-Dry Process, a limited amount of water (10-15%) is added to dry raw meal so that it can be nodulised, and the damp nodules are fed to the kiln system. The original rotary cement kilns were called 'wet process' kilns. In their basic form they were relatively simple compared with modern developments. The raw meal was supplied at ambient temperature in the form of a slurry. A wet process kiln may be up to 200m long and 6m in diameter. It has to be long because a lot of water has to be evaporated and the process of heat transfer is not very efficient. The slurry may contain about 40% water. This takes a lot of energy to evaporate and various developments of the wet process were aimed at reducing the water content of the raw meal. An example of this is the 'filter press' (imagine a musical accordion 10-20 metres long and several metres across) -such adaptions were described as 'semi-wet' processes. The wet process has survived for over a century because many raw materials are suited to blending as a slurry. Also, for many years, it was technically difficult to get dry powders to blend adequately. In a modern works, the blended raw material enters the kiln via the pre-heater tower. Here, hot gases from the kiln, and probably the cooled clinker at the far end of the kiln, are used to heat the raw meal. As a result, the raw meal is already hot before it enters the kiln.The dry process is much more thermally efficient than the wet process. FAQ Q: Why we believe in luoyang zhongtai industries co., ltd: A: 1. More than 30 years experience. 2.We are the leading
professional supplier of mining machinery, construction machinery,
machines casting and forged parts. 3. All products achieved
ISO9901:2000 quality management certificate and CE, ROHS
certificates. Q:Delivery time A: parts lead time 1-2months, machines 2-3months. Q:Payment terms
A: Accept payment type: T/T, L/C, Western union,Cash. 30% deposit
when signed contract. Full payment paid before shipping Q: Quality warranty? A: guarantee time: one year for main machinery. If something wrong
we will provide the technical advice and find solution immediately.
For those wearing parts we guarantee high quality parts for
long-term supply. Q: After sales service? A: we can supply technical guide for machines running test and
parts maintenance if end user needs. |
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| Product Tags: 12000t/D Rotary Kiln In Cement Plant 6.0x95m Rotary Kiln In Cement Plant 6.0x95m rotary kiln in cement industry | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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