Coal slime dehydration process

Abstract

The invention discloses a coal slime dehydration process, which comprises the following steps that raw materials are guided into a carriage stock bin through a loading machine, and then fall onto a scraper conveyor; the raw materials are driven by the scraper conveyor to be treated by the material distributing and slitting machine and then guided into the coal slime dehydrator; the raw materials are uniformly spread on a filter belt in the coal slime dehydrator after being treated by a cloth slitter, and the water content in the raw materials is reduced under the driving of the filter belt and the wedge-shaped dehydration and extrusion dehydration effects of the coal slime dehydrator; the raw materials are extruded by the coal slime dehydrator to form filter cakes with low water content, and the filter cakes are discharged through the discharging end; the filtrate left after the raw materials are treated by the coal slime dehydrator is lifted into the integrated water purifier, and mud-liquid separation is carried out in the integrated water purifier. According to the coal slime dehydration process, the water content of the coal slime can be reduced, the raw materials of the coal slime can be directly blended and burnt, and meanwhile, the process can realize up-to-standard discharge and recycling of sewage.

Description

technical field [0001] The invention relates to the technical field of coal slime dehydration, in particular to a coal slime dehydration process. Background technique [0002] Due to the improvement of the degree of coal mining mechanization and the rapid development of coal preparation technology in China, the proportion of coal slime has increased sharply. Coal slime water is the waste generated in the process of coal washing. At present, it has a high moisture content after being processed by traditional processes. The coal slime can be used after a period of drying. The drying time is restricted by the environment and the site, and it is difficult to process and use it in large quantities. Therefore, higher requirements are put forward for the dehydration effect of the coal slime, which promotes the The optimization of the coal slime dehydration process, this patent relates to a set of coal slime dehydration process, which reduces the moisture content of the coal slime t...

AI Technical Summary

Problems solved by technology

[0002] Due to the improvement of the degree of coal mining mechanization and the rapid development of coal preparation technology in China, the proportion of coal slime has increased sharply. Coal slime water is the waste generated in the process of coal washing. At present, it has a high moisture content after being processed by traditional processes. The coal slime can be used after a period of drying. The drying time is restricted by the environment and the site, and it is difficult to process and use it in large quantities. Therefore, higher requirements are put forward for the dehydration effect of the coal slime, which promotes the The optimization of the coal slime dehydration process, this patent relates to a set of coal slime dehydration process, which reduces the moisture content of the coal slime to be treated, so that it can form a coal slime with a moisture content of less than 15%, which can be directly put into subsequent incineration, improving the resource utilization

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