A kind of pneumatic environment-friendly coal particle drying equipment

Abstract

The invention discloses a wind-driven environment-friendly coal particle drying equipment, which belongs to the technical field of coal drying. The invention can spread the coal particles on the oil-filled chuck, and use the airflow effect of the hot air from the air inlet box to force it The contraction-expansion action occurs, and the heat transfer oil inside is heated at the same time, and the heat transfer oil is squeezed when the lower end of the oil-filled chuck shrinks, and then the heated heat transfer oil is forced to fill into the extension oil pipe, forcing the extension oil pipe to be in the coal The extended contact within the particles promotes its small-scale turning and at the same time conducts contact-type drying. At the same time, the electromagnet is used to control the attraction and turning of the ball, so that it is continuously buried in the coal particles and then rises to perform large-scale turning. And the evaporated water vapor can escape into the air outlet box, and then be taken away by the hot air, which not only ensures efficient drying of coal particles, but also can take away water vapor in time to prevent small particles and dust from being mixed.

Description

technical field [0001] The invention relates to the technical field of coal drying, in particular to a wind-driven environment-friendly drying equipment for coal particles. Background technique [0002] The coal drying process refers to a special technical measure for coking coal preparation that pre-dries the furnace coal to reduce the moisture content to less than 6% and then loads it into the furnace. It has the functions of stabilizing the operation of the coke oven, improving the mechanical strength of the binder and reducing the heat consumption of coking. [0003] The current drying method is mainly the way of heating and drying. Through the transfer of heat, the hot air is urged to take away the evaporated moisture in the coal. Instead, the drying carrier used is usually a drum. During the rotation of the drum, through The inner wall of the drum transfers heat to the coal, and at the same time, the rolling drum can turn the coal, so that the coal can be contacted as...

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Problems solved by technology

[0004] However, during the current rolling process of the coal by the roller, the coal is still piled up at the bottom under the influence of gravity, and the lifting height of the coal turning process is limited, and the turning range is small, especially when the humidity is high, the coal sticks together , the coal lifting height is lower, which will affect the drying effect. At the same time, the hot air will bring the small particles and dust separated from the coal into the atmosphere, which will pollute the environment.

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