Separation recycling system and separation recycling process of wide size fraction coal slime

Abstract

The invention relates to a separation recycling system and a separation recycling process of wide size fraction coal slime and belongs to the field of coal separation processing. The problems that theseparation recycling process of the wide size fraction coal slime in the prior art is complicated in technological process, and high in cost and energy consumption, and causes harm to the environmentare solved. The separation recycling system is provided with a stirring bucket, a hydraulic powder flotation machine, a three-product cyclone classification screen, an ore pulp preprocessor and a flotation column along a separation pipeline; a first buffering bucket is arranged between the hydraulic power flotation machine and the three-product cyclone classification screen; a second buffering bucket is arranged between the three-product cyclone classification screen and the ore pulp preprocessor; and the ore pulp preprocessor is connected with the flotation column. The separation recycling process includes the following steps that the coal slime in flotation is supplied into the stirring bucket, and is stirred and deployed into ore pulp to be supplied into the hydraulic power flotation machine; first time classification is performed; coarse particle concentrate, micro fine particle coal slime and fine particle coal slime are classified; and accurate separation of the fine particle coal slime is performed. The separation recycling system and the separation recycling process of the wide size fraction coal slime achieve wide size fraction and short process continuous coal slime separation.

Description

technical field

[0001] The invention relates to the technical field of coal sorting and processing, in particular to a wide-grained coal slime sorting and recovery system and a sorting and recovery process. Background technique

[0002] As the main energy source in our country, coal has made great contributions to the national economic and social development. Due to the problems of extensive coal utilization, low energy efficiency, heavy pollution, and low comprehensive utilization of secondary resources, the development of my country's coal industry will be further severely restricted by resources and the environment in the future. Therefore, by improving the level of coal sorting, the clean and efficient utilization of coal and energy conservation and emission reduction can be realized to ensure the sustainable development of the coal industry under the new normal of my country's economic development. Coal sorting and processing is the source and basis of clean coal techn...

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