Coal drying and upgrading drying system is usually more common is the tumble dryer. It is more common to use a single-cylinder dryer. Generally, the moisture content of coal after drying and upgrading will be about 5% or lower or higher than this point. The coal drying and upgrading system is the premise process for the recycling and utilization of coal.
The coal drying and upgrading system takes the form of high-temperature evaporation and drying. The wet coal enters the high-temperature drying area of ??the tumble dryer under the conveyor of the loosening feeder, and then is evenly dispersed and raised by the purlin and the cleaning device. The material curtain is heat exchanged with the hot air section to achieve dry and upgraded quality.
The operation process of the coal drying and upgrading system generally needs to go through 6 extremes. The above is a brief description, which can be summarized as the dumping zone, the repeated crushing zone, the main drying zone, the crushing and drying zone, the strengthening drying zone and the discharge zone. After 6 zones, the moisture content of the generally dried and upgraded coal slime meets the requirements and appears granular. After several generations of upgrading and improvement of the coal drying and upgrading system, the technology upgrade of environmental protection and low consumption has been realized, which is not only low cost. The realization of coal slurry drying and upgrading is in line with the preconditions for the current coal enterprise operation, that is, the requirements of the environmental assessment. Dingli has been supplying coal drying and upgrading equipment for many years. The environmental protection and energy-saving technology for drying has reached a higher level in the industry, and the cost of environmental protection equipment is not increased.
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