An integrated drying and crushing device and its application method

Abstract

The invention discloses a drying and crushing integrated device and a using method, and belongs to the field of coal processing and utilization. The device comprises an air compressor, a cabinet bodyand a bag-type dust remover, a partition plate used for dividing the cabinet body into left and right box bodies is arranged in the cabinet body, and the left box body is an air collecting box; the right box body is a screening box, the bag-type dust remover connected with an output pipeline of the air compressor is arranged on the upper portion of the screening box, and a heating wire controlledby a heating wire power switch is arranged in the air collecting box; a screening plate arranged aslant is arranged below a feed inlet, crushing hammers corresponding to the inclination angle of the screening plate are arranged on the upper portion of the screening plate, and a product chamber is formed in the lower portion of the screening plate; the flow of air entering into the device is adjusted through a mass flowmeter, the temperature of dry gas is adjusted through the heating wire power switch, and the dried air achieves closed-loop circulation through the bag-type dust remover and an air inlet pipeline. Not only can low-rank coal be dried and smashed, but also it can be avoided that coal particles block the screening plate and leak in the crushing process, and the efficient dryingand crushing of coal are achieved.

Description

technical field [0001] The invention relates to a drying and crushing integrated device and a use method, in particular to a drying and crushing integrated device and a use method suitable for low-rank coal, belonging to the field of coal processing and utilization. Background technique [0002] In experimental research and industrial production applications, the collected low-rank raw coal has a large particle size, and it is often necessary to crush it to a specific particle size range. moisture. Taking Mengdong lignite as an example, the raw coal has a moisture content of about 30%, so it is often necessary to dry the coal in the early stage of coal crushing. However, the existing processing methods often have the following problems: ①The drying and crushing devices are carried out separately, which reduces the efficiency of the crushing process; The continuous cleaning of the crushing plate cannot be guaranteed; ③during the crushing process, due to the high-speed rotat...

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Problems solved by technology

However, the existing processing methods often have the following problems: ①The drying and crushing devices are carried out separately, which reduces the efficiency of the crushing process; The continuous cleaning of the crushing plate cannot be guaranteed; ③during the crushing process, due to the high-speed rotation of the crushing hammer, the coal powder enters the air, resulting in waste of samples and environmental pollution; ④integrated device for partial drying and crushing , because the drying temperature is too single, it cannot meet the processing requirements of different samples

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