The fine slime dryer project from Zhengzhou Dongding dry, slime dryer project is a comprehensive system engineering, must be taken into account in the design of the operating environment, local economic conditions, the cost of the system is running, to the targeted device configuration selection to ensure that owners maximize the benefits. Dongding dry as coal drying factory has rich experience in the design and construction of coal projects, the weather is getting cold, coal washery slime dryer project needed to proceed, so as not to affect the construction process due to weather. Slime dryer system design fully consider the nature of dry feed, in the the cylinder internal structure to do a special design, not only to improve the thermal efficiency, but also effectively avoid adhesions of the material in the dryer and too dry phenomenon. Its structure is characterized by six intervals along the axial guide plate for the big dip, the first interval; the second interval tilt Yang plate; the third interval activity grate-wing; fourth interval with a cleaning device arc lifting plate; fifth interval with automatic cleaning device arc-shaped grate of the lifting plate; sixth interval for lifting plate area to control dust. In addition, the drum dryer to further strengthen the united block broken dryer and cleaning of bonding material on the inner wall of the cylinder: the the Dongding slime dryer system mainly consists of the following six sections. (1) raw material loading system: including feeding conveyor, slime break up the device, scraper conveyor (installation of frequency control) to achieve at any time to adjust to the quantity of size, to ensure uniform continuous feed, and ensure that the drying machine into the sealing performance of the discharge port. (2) combustion heating system: use slime drying dedicated hot stove, fuel coal, blowers and other equipment, to ensure a steady supply of high-temperature heat medium to the drying system. (3) drying and dehydration system: to choose sealed box feeding propeller, drum dryers, nesting boxes and other equipment to complete the quality of materials of high moisture and high temperature heat medium heat exchange. (4) Environmental dust removal system: selection of the cyclone, screw conveyor or star air lock, cited the fine particles in the fan, wet scrubber equipment recycling drying products, while achieving exhaust emissions standards. (5) distribution monitoring and control system: the choice of power distribution equipment, monitoring and control console, industrial TV monitoring system, place the box, electric actuators and other electrical equipment drying system is centralized or local automatic control. (6) transportation system: selection of a belt conveyor to transport dry products to a user-specified location, which is close to the dryer equipment with good heat resistance and sealing performance conveying equipment spout.