Rotary Kiln Calcination System for Cement plant

Henan Zhengzhou Mining Machinery Co.Ltd., was founded in 1956, and the production of rotary calcination kiln has a long time. The following brief introduction to the development and changes in rotary kiln.

Since 1885, as a high-temperature cement calcination reaction equipment, rotary kiln specifications have gone through a fine coarse, long, and then by the length of the short development process. Calcined cement clinker rotary kiln, is accompanied by dry process, but because the cement production calcination process is not yet mature, there are many problems cannot be solved, the biggest problem is the raw material uniformity is poor. As a result of this problem, making the dry process of cement clinker produced by poor quality, stability is not good. Therefore, the process of adding water and pulping (wet method), then drying, preheating and calcining process, so that the quality of cement clinker has been greatly improved.

Then the cement production equipment manufacturers vigorously push out the cement clinker wet production process, and gradually develop to large-scale direction. Until the kiln cylinder diameter up to 7.6, the length reach 230m, rotary kiln supporting pier up to 6, which gives tthe rotary kiln cylinder supporting device design, deformation of the force distribution and the stability of the kiln refractory material caused the adverse effects, making the operation of large-scale cement significantly reduced. Before and after 1950, with the advent of preheater technology and continuous improvement, coupled with raw material dry pre-homogenization technology improvement and application, makes dry production characteristics of the rotary kiln, and return to its original development track up.

Preheater completes a large number of heat exchange and part of the decomposition of the task, greatly reducing the length of the rotary kiln, while the heat consumption is also lower than the wet kiln, which greatly improved the thermal load and operating conditions of the rotary kiln, cement industrial large-scale to provide a reliable technical support. Especially after the 1970s appeared outside the kiln decomposition technology, coupled with nearly 20 years of preheater and decomposition furnace structure and operating parameters of the continuous optimization and improvement of the new efficient grate cooler emerging, rational design and control flexible multi-channel burner and the introduction of the application of the cement rotary kiln has undergone a qualitative change in function, to achieve a leap in the cement industry technology.

Zhengkuang rotary kilns not only in the cement industry maturely use, but also in the metal magnesium, lime, ceramic sand, light aggregate ceramsite and other industries have been widely promoted and used, please contact us.