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Adhesion-preventing efficient energy-saving sludge drying device and method

A high-efficiency, energy-saving, drying device technology, used in dewatering/drying/concentrating sludge treatment, etc., can solve the problems of slow drying rate, difficult exhaust gas treatment, high sludge energy consumption, low mechanical energy consumption, energy saving, simplified sealing effect of structure

Active Publication Date: 2018-11-13
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

[0015] The purpose of the present invention is to provide a sludge anti-adhesion, high-efficiency and energy-saving drying device and method to solve the problems of high energy consumption, slow drying rate and difficult tail gas treatment in the sludge drying process in the prior art

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  • Adhesion-preventing efficient energy-saving sludge drying device and method
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  • Adhesion-preventing efficient energy-saving sludge drying device and method

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] The purpose of the present invention is to provide an anti-adhesion, high-efficiency and energy-saving drying device and method for sludge, so as to solve the problems of high energy consumption, slow drying rate and difficult tail gas treatment in the sludge drying process in the prior art.

[0043] In order to make the above objects, features and advantages of the present invention more clearly understood, the present inventio...

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Abstract

The invention discloses an adhesion-preventing efficient energy-saving sludge drying device and method. Steam is adopted to perform indirect and quick heating, vertical columnar sludge is heated, internal moisture is evaporated, the sludge shrinks towards the center, leaves from the heated face to shed off automatically, and a drying non-wall-sticking effect is achieved through a sludge drying adhesion zone; excessive hot steam is used as a drying medium, a steam recompression technology is utilized to recover latent heat and sensible heat of secondary steam produced in the drying process, andthe energy-saving purpose is achieved.

Description

technical field [0001] The invention relates to the technical field of sludge anti-adhesion, in particular to a high-efficiency and energy-saving drying device and method for sludge anti-adhesion. Background technique [0002] Sludge drying is the most effective way to achieve sludge volume reduction and treatment, but the sludge drying process is often accompanied by problems such as high drying energy consumption, slow drying rate, and difficult tail gas treatment. At the same time, sludge is a high-moisture, high-viscosity material. During the drying process, as the moisture content decreases, the sludge will appear in a viscous stage, and the drying process will easily form sticky walls and agglomerates. "Phenomenon. The occurrence of wall sticking and agglomeration in the drying process will reduce the efficiency of heat and mass transfer, hinder the evaporation of water, cause energy waste, and may cause equipment jams to prevent normal operation. [0003] Sludge dry...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
CPCC02F11/12
Inventor 张绪坤杨祝安吴肖望曾恩彭福明何志远
Owner NANCHANG HANGKONG UNIVERSITY
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