Ultralow-water-content sludge dewatering and drying system and drying treatment method thereof

Abstract

The invention discloses an ultralow-water-content sludge dewatering and drying system and a drying treatment method thereof. The ultralow-water-content sludge dewatering and drying system comprises adewatering device, a drying device and a waste gas treatment device. The drying device comprises a drying container, and a primary crushing mechanism, a mud cake forming mechanism and a secondary crushing mechanism that are sequentially arranged in the length direction of the drying container at intervals; wherein the primary crushing mechanism is arranged corresponding to a discharge port of thedehydration device, the sludge cake forming mechanism is used for filter-pressing sludge passing through the primary crushing mechanism into a sludge cake, the secondary crushing mechanism is used forcrushing the sludge cake passing through the sludge cake forming mechanism into sludge particles, and high-temperature gas in the incineration tower is introduced into an inner cavity of the drying container. A waste gas recovery opening is formed in the wall body of the drying container, one end of the waste gas recovery assembly is arranged corresponding to the waste gas recovery opening and the other end of the waste gas recovery assembly is introduced into the incineration tower, and therefore, sludge can be dewatered and dried quickly and sufficiently.

Description

technical field [0001] The invention belongs to the field of sludge drying, in particular to an ultra-low moisture content dehydration and drying system for sludge and a drying treatment method thereof. Background technique [0002] Sludge dehydration generally includes centrifugal dehydration and filter press dehydration, but the sludge still has a high moisture content after dehydration, and it is usually dried by heating or drying naturally, but it takes a long time and the drying is not sufficient. The appearance is dry but the interior still has a high moisture content. Therefore, it is urgent to optimize and improve this dehydration and drying method. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides an ultra-low moisture content dehydration and drying system for sludge and its drying treatment method, which can quickly and fully dehydrate and dry sludge . [0004] Tec...

AI Technical Summary

Problems solved by technology

[0002] Sludge dehydration generally includes centrifugal dehydration and filter press dehydration, but the sludge still has a high moisture content after dehydration, and it is usually dried by heating or drying naturally, but it takes a long time and the drying is not sufficient. The surface is dry but the interior still has a high moisture content. Therefore, it is urgent to optimize and improve this dehydration and drying method.

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