Advanced Cement Cement Rotary Kiln In Low Price

534 words - 3 pages

Cement rotary kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of cement are made per year, and cement kilns are the heart of this production process: their capacity usually define the capacity of the cement plant. As the main energy-consuming and greenhouse-gas–emitting stage of cement manufacture, improvement of kiln efficiency has been the central concern of cement manufacturing technology.

Through many years of experience, rotary kiln technology department summarize some reasons: axial force of riding wheel oversize; oil selection is improper, oil viscosity is not enough; rotating drying kiln body local high temperature ...view middle of the document...

Because the temperature of the exhaust gas discharged from the wet process rotary kiln is relatively high, can not choose a dust collection rate and cheap dust collector like bag-style dust collector, and its cost is quite high. Not only the cost of production is relatively high, and have a lot of pollution on the environment. Therefore, many domestic and foreign manufacturers do technology improvements for these rotary kilns.

There are some problems in the dry hollow cement rotary kiln, so need modification. Through a long time practice and research, modern small dry hollow rotary cement kiln inlet dosen’t have any primary heater unit, the temperature of exhaust gas from the clinker rotary kiln inlet is very high, and directly discharged, resulting in a waste of thermal energy, unit clinker’s heat consumption is very high. Some even reach 8000 kj/kg.cl.

After a long period of trying and analysis, decide in the horizontal kilns adopt cyclone preheater or shaft preheater, kiln outside preheating decomposition technique, these are relatively good technical improvement methods. However, due to the funds in the process of transformation is relatively high, and technical requirements are more stringent, so some manufacturers dispel the transformation plan.

Zhengzhou Great Wall Heavy Industry Machinery Co., Ltd in recent years has been committed to research and innovation of rotary kiln, and we are well received by the masses of users, if you want to learn more about the price of rotary kiln, welcome to inquire us by greatwallmails@gmail.com, you can also to visit our factory.

rotary kiln: http://www.greatwallmachinery.com/products/index.html

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