Spiral flocculator and application to folded plate type flocculation reaction tank

Abstract

The invention belongs to water treatment equipment, and particularly relates to a spiral flocculator which comprises a support. At least two spiral plates with opposite turning directions are longitudinally arranged on the support at intervals, the upper end and the lower end of each spiral plate are rotationally assembled on the support, and strip-shaped blades are radially fixed onto outer edges of the spiral plates. The spiral flocculator is mounted between two adjacent partition boards in a folded plate type flocculation reaction tank when applied to the folded plate type flocculation reaction tank. The spiral flocculator solves problems of large application limitation, poor flocculation effect and large occupied area of an existing reaction tank in the prior art, and has the advantages that a disturbance effect to water flow is good, the occupied area of the reaction tank is small, installation is simple, energy is saved, and the like.

Description

technical field [0001] The invention belongs to water treatment equipment, in particular to a spiral flocculator and its application in a folding plate type flocculation reaction tank. Background technique [0002] Flocculation and sedimentation is an important link in the conventional process of water treatment. Its principle is to add chemicals to the wastewater to destabilize the suspended small particles and colloidal substances in the wastewater to form small flocs, which collide under certain hydraulic conditions. After agglomeration into larger flocs, the large flocs can settle under gravity. In engineering, the flocculation process is generally divided into two parts: the mixing stage and the reaction stage. The mixing stage is: the medicament and the wastewater are fully contacted and mixed; the reaction stage: the reaction stage is the process in which the medicament reacts with small suspended solids and colloids in the water to form flocs. [0003] One of the i...

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Problems solved by technology

However, due to insufficient stirring strength, hydraulic agitation is prone to laminar flow, dead zone, etc., resulting in insufficient agitation. According to the above situation, it is very necessary to improve the original flocculation equipment technically.

[0004] The invention patent with the publication number of 2540406Y discloses a fin partition flocculation tank, which adopts a fixed fin structure. In the above patent, the state or position of the flocculator cannot change with the change of the water flow, resulting in the existence of The problems of large application limitations, low water treatment capacity, and poor flocculation effect

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