Rotary kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves 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 bunsen burner. The fuel for this may be gas, oil, pulverized petroleum coke or pulverized coal.



Rotary Kiln's specification:

Henan Zhengzhou Mining Machinery Co., Ltd. was founded in 1956,it is located in Zhengzhou city which is the capital of Henan Province. After more than half a century of development, Henan Zhengzhou Mining Machinery Co., Ltd has developed to an area of 70000 square meters, plant construction area of 40000 square meters with six modern workshops, two heavy machinery workshops, one Municipal Technology Center and more than 260 sets of machining, assembling, welding and other equipment. Its fixed asset value has exceeded 100 million RMB. Henan Zhengzhou Mining Machinery Co., Ltd has become an integrated modern enterprise with scientific research, design, development, manufacturing, sales, installation, commissioning and training services.

The main products of company include: ball mill, rotary kiln, preheater, cooler, crusher, bucket elevator, dust collector, conveyor and other equipment relate to metallurgy, cement, lime, mineral processing, refractory, chemical industry. The products of Henan Zhengzhou Mining Machinery Co., Ltd have been sold to every province of China and exported to Russia, Korea, Vietnam, Malaysia, Nepal, Bangladesh, Mexico, Armenia, Africa, South America and other countries and regions. At present, Henan Zhengzhou Mining Machinery Co., Ltd is the largest equipment supplier for magnesium production and has been on the leading position for 25 years in the market.

Henan Zhengzhou Mining Machinery Co., Ltd has modern and mature administration system and perfect quality control system and has got the ISO9001 International Quality System Certification and Environmental Protection Certification.