1.Widely Usage:

Rotary Cooler is suitable for cooling hot materials and getting the air absorbing lots of heat from the hot materials at the same time to make the combustion air getting to hot, for strengthening calcining and decreasing heat consumption, it's an important corollary equipment of rotary kiln.cooling machine is the main associated equipment for rotary kiln production system. Its structure is simple but the performance is good and operating is reliable. The waste gas after heat exchange will import to rotary kiln again so as to improve the thermal efficiency of the whole system.

2.Rotary Cooler

1).Rotay cooler can be heated direct or indirect; the heating efficiency can be up to 95%
2).Rotary cooler operating under high temperature and low oxygen to avoid materials being self burning or exploding when drying. Big drying capacity, highly industrialization and low cost 
3).Low amount of air required to save tail gas handling cost

3.The Working Principle of Rotary Cooler

1).I produced a rotary kiln system and equipment through technology innovation, the system used in the most advanced hydraulic gear wheel device, adopts the high precision measurement of piston pump, high precision control valve and contact graphite block seals and other advanced technologies. 
2).To improve the degree of automation, an industry watch TV Kiln fire, process simulation screen, burning zone by infrared scanning apparatus to Duanshao calcined with a direct reflection of the computers. 
3).Thermal stability of the system, improved equipment operation rate, compared with the same specifications of equipment, operating rate of 10%, yield 5% -10%, 15% lower heat consumption.

With advanced processing equipment, strong technical support and scientific management, we have supplied our domestic and international customer with excellent quality products, such as ball mill, rotary kiln, pre-heater, dryer, crusher, cooler, elevator and other equipments used in cement, lime and metallurgy plants.

Our key company culture features Morality, Sincerity and Exquisite workmanship. We will exert ourselves in the

pursuit of the customers’ success, the staff’s welfare and the society’s development.

Founded in 1956 and specializing in the research, engineering, manufacturing, marketing, installation and staff training for cement and mining plant equipments, Henan Zhengzhou Mining Machinery Co., Ltd, is nominated as the regional supplier of cement and mining plant equipments by the State Ministry of Machine Building Industry and Henan Machine Building and Electronics Industry Bureau.

During the past half century, we have developed from a small factory into a diversified modern corporation with an area of more than 70,000 square meters and building area of more than 35,000 square meters, and total fixed assets of more than 80 million RMB Yuan.

From 1988, we began manufacturing mechanical equipments for magnesium metallurgy with the technical support from Henan Metallurgical Planning&Design Institute and CHALCO Zhengzhou Research Institute. Based on the experience accumulation of equipment manufacturing and technical improvements, during 2003-2005, we successfully developed a new pre-heater for Dolomite calcining. This kind of new pre-heater brings a decrease of fuel consumption at 40% and output rise at 30%, and can recycle the heat from the exhaust gas and control the dust emission below 50mg/m3. Due to its excellent performance, this kind of pre-heater has taken a domestic market share of more than 80%.

Main processing equipments include:

Vertical Machine Tool with maximum processing capacity of Φ8m

Gear Hobbing Machine Tool with maximum processing capacity of Φ5m(Made by Wuhan Heavy Machine Tool Group Co., Ltd)

T6920 Milling Machine, CNC Cutting Machine

16m Steel Plate Edge Planer.

80×3500mm CNC Steel Plate Bending Machine.

2 Auto SAW Lines with maximum processing capacity of Φ5m

Φ5.3m×20m Cylinder Processing Machine

Travelling Crane with maximum load of 150T.