Grate machine is the iron material in the slow movement of the ball on the grate plate, the use of ring cooler waste heat and rotary kiln exhaust hot air to dry the ball, preheating, oxidation consolidation, and then directly into the rotary The kiln is roasted, the powder on the grate machine is collected by the ash hopper and reused. Chain grate machine is a thermal equipment in high temperature work, the main components of heat-resistant alloy steel.

According to the working conditions of the equipment temperature, material ratio, the overall process is different, can be divided into metal pellet grate machine, oxidation pellet grate machine, low temperature reduction grate machine. According to the production division, can be divided into 300,000 tons / year to 400 million tons / year of different specifications of the output of equipment products.