Sludge water heat drying treatment device and homogeneous reactor thereof

Abstract

The invention provides a sludge water heat drying treatment device and a homogeneous reactor thereof. The sludge water heat drying treatment device comprises the homogeneous reactor, the slurry reactor, a hydrothermal reactor and a flashing reactor which are sequentially connected. The homogeneous reactor is used for chopping and agitating materials, then the materials are delivered to the slurry reactor for even preheating, hydrothermal reaction is conducted to the preheated materials in the hydrothermal reactor, the materials are stored in the flashing reactor and the recovered steam of the flashing reactor can be fed into the slurry reactor and / or the hydrothermal reactor. When the sludge water heat drying treatment device is under certain temperature and pressure, viscous organic matters in sludge are hydrolyzed, the colloid structure of the sludge is destructed and bond water is facilitated to be separated from solid particles. The homogeneous reactor can chop and evenly agitate the materials and can ensure sludge water heat drying treatment to be uninterruptedly conducted.

Description

technical field [0001] The invention relates to the technical field of sludge hydrothermal drying treatment, in particular to a sludge hydrothermal drying treatment device and a homogeneous reactor thereof. Background technique [0002] With the rapid development of the global economy and people's increasing concern for the environment, the amount of sewage treatment has increased rapidly, leading to the rapid expansion of sludge production. At present, my country's annual discharge of dry sludge is about 5 million tons, and the amount is still increasing. Improper sludge treatment will cause serious secondary pollution, and the investment and operation costs of sludge treatment are huge, accounting for 25% to 65% of the investment and operation costs of the entire sewage plant, which has become a heavy burden for urban sewage treatment plants. Therefore, how to dispose of excess sludge economically and efficiently, and realize sludge stabilization, harmlessness, and resour...

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Problems solved by technology

[0008] However, the existing sludge hydrothermal drying treatment devices have the problems of poor reaction effect and poor material continuity, so the efficiency of sludge hydrothermal drying is still very low

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