Novel low-temperature hot wind sludge drier

Abstract

The invention discloses a novel low-temperature hot wind sludge drier. The novel low-temperature hot wind sludge drier comprises a feeding uniform distribution system, a sludge drying chamber, a sludge conveying self-cleaning system, a hot wind circulation uniform distribution system and a discharging collecting system; the feeding uniform distribution system comprises a fixing frame, a feeding conveying belt arranged on the fixing frame, a loader and a roller, the loader and the roller wrapped by the feeding conveying belt are mounted on the fixing frame, and the top end of the feeding conveying belt extends into the sludge drying chamber; the sludge conveying self-cleaning system comprises a drying conveying net belt, an anti-adhesion scraping plate and a material stirring harrow, and the material stirring harrow and the anti-adhesion scraping plate are mounted above and below the drying conveying net belt respectively; the hot wind circulation uniform distribution system sequentially comprises a dust removing device, a dehumidifying device and an air heating device; the discharging collecting system comprises a material collecting groove formed in the bottom of the sludge dryingchamber and an unloading door arranged at the bottom of the material collecting groove. The novel low-temperature hot wind sludge drier can effectively solve the problems that dust accumulates on theconveying net belt and the conveying net belt is adhered in the sludge drying process, and has the functions of dust removal and dehumidification.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a novel low-temperature hot-air sludge dryer. Background technique [0002] The low-temperature sludge drying device is a compact, efficient and flexible new sludge treatment equipment that can be widely used in various fields. The traditional low-temperature sludge drying device does not add any conditioning agents during the entire sludge drying process, so as to ensure that the unit calorific value of the absolute dry sludge must remain basically unchanged, which is convenient for the further sludge treatment in the next step. The drying process adopts a fully closed circulation system, the water vapor generated is completely condensed into water, and all of it is recycled to the sewage tank for treatment, and the water vapor will not be directly discharged into the atmosphere; the latent heat and sensible heat of the exhaust process can be recovered, and the waste is...

AI Technical Summary

Problems solved by technology

[0004] In the existing sludge drying methods, the sticky sludge with high water content is easy to adhere to the conveyor belt during the sludge transportation process, which affects the ventilation effect and the drying and transmission of the sludge. In order to solve this problem, this The invention provides a new type of sludge dryer that can effectively solve the problem of dust accumulation and sticking on the mesh conveyor belt and has the functions of dust removal and dehumidification

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