Process system suitable for carrying out granulating molding by recycling coal slime dust

Abstract

The invention relates to a process system suitable for carrying out granulating molding by recycling coal slime dust and belongs to the technical field of coal slime dust recycling. Small coal slime dust particles collected by a dust remover fall into an assembly screw conveyor to be conveyed into a coal slime dust buffer bin through a dust collection hopper, an ash amount adjustment valve is arranged on the bin bottom so that ash amount uniformly flows to a feed port of a granulator, the height of material level of the amount of dust in the bin is sensed by a radar material level instrument on the bin top, data is fed back to a master control room, decision on whether to open a principal shaft rotation and atomization water spray system of the granulator is made, atomization water volume sequentially passes through a filter and an overflow valve and enters a spray head on the top of a drum body of the granulator to be injected into the drum body, and water-added coal slime dust is repeatedly dripped in the drum body in radial direction and pushed to do rectilinear motion by blades arranged in spiral shape along the axial direction until reaching a discharge port to enter the next process. Compared with general simple humidification process, particle size and moisture of collected dust can be controlled, and product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of coal slime dust recovery, and in particular relates to a process system suitable for coal slime dust recovery for granulation. Background technique [0002] Cyclone dust collection and bag dust collection will inevitably produce a large amount of dust (calorific value between 2000Kcal-3000Kcal) during the production practice of coal slime at home and abroad. Effective recycling of these dusts has been a challenge. [0003] Coal slime drying is an environmental protection industry that reuses waste. During the coal slime drying process, a large amount of dust will be generated. If the dust is not handled properly, the environmental protection industry will become a polluting industry. Effective recovery of coal slime dust can improve the surrounding ecological environment, and no longer be subject to secondary pollution by dust. Through reasonable treatment, it is the main problem that needs to be studied...

AI Technical Summary

Problems solved by technology

[0003] Coal slime drying is an environmental protection industry that reuses waste. A large amount of dust will be generated during the coal slime drying process. If the dust is not handled properly, the environmental protection industry will become a polluting industry.

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