Zhengzhou Dongding Machinery is a high-tech enterprise integrating R&D design, production installation, production management, sales, after-sales service and technical consultation. We have core technology system, which integrates the thermal combustion, dehydration, drying, molding, separation and dust removal. Scientific equipment selection and technical process optimization are adopted according to different material characteristics. Currently our equipment has been successfully applied in the coal, mining, feed, biomass fuel, organic fertilizer processing industries. Especially the coal dryers like lignite coal dryer, raw coal rotary dryer, coal slime dryer, etc. are well received by the customers at home and abroad.