Coal slime ultrahigh-pressure dehydrator and coal slime ultrahigh-pressure dehydration machine

Abstract

The invention belongs to the field of coal slime dehydration, and relates to a coal slime ultrahigh-pressure dehydrator and a coal slime ultrahigh-pressure dehydration machine. The coal slime ultrahigh-pressure dehydrator comprises a filter pressing unit; the filter pressing unit comprises a drain pipe arranged in a filter pressing container, a filter cloth group spirally wound on the drain pipe, and a support plate group arranged in the filter cloth group and spirally wound on the drain pipe; the filter cloth group is formed by connecting a plurality of filter cloth bags; the support plate group is formed by connecting a plurality of support plates; a filter cake accommodating gap is formed between every two adjacent filter cloth bags; the support plates are accommodated in the filter cloth bags; drainage holes are formed in the drain pipe; and a feeding pipe is arranged on the filter pressing container. The dehydration machine is small in size, the size of the dehydration machine is only about one fifth of that of a plate-frame machine with the same capacity as the dehydration machine;the dehydration machine has the greatest advantage of a skid-mounted structure, so that the dehydration machine can be assembled in a container, the installation and debugging period of the dehydration machine is greatly shortened; and the dehydration machine is particularly used for emergency disposal and can play a role in emergent action and emergent decision making.

Description

technical field [0001] The invention belongs to the field of coal slime dehydration, and in particular relates to a coal slime ultra-high pressure dehydrator and a coal slime ultra-high pressure dehydrator. Background technique [0002] Coal slime is a by-product of coal mining and processing. Due to the high moisture content of coal slime, the state is very viscous and the particles are fine, which causes great difficulties in transportation and utilization. Therefore, in order to solve this problem, various companies have adopted various methods. Coal slime dehydration machinery for reprocessing. Such conventional dehydration equipment includes; belt filter press, plate and frame filter press, horizontal centrifugal dehydrator, stacked screw dehydrator, cone basket centrifugal dehydrator and so on. The above-mentioned machines can generally only reduce the moisture content to about 30%, and the requirements for the utilization of coal slime units are still far away. There...

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Problems solved by technology

The above-mentioned machines can only reduce the moisture content to about 30%, and the requirements for the utilization of coal slime units are still far away. Therefore, the processing methods of drying and airing appear again, which not only increases the labor intensity, but also is rejected by the environmental protection department. Strict restrictions, or even ordered to stop production

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