Grid flocculation basin based on fan blade structure filler

Abstract

The invention discloses a grid flocculation basin based on a fan blade structure filler, a plurality of vertically staggered grid plates are arranged in a basin body, and water passing holes are formed in the adjacent grid plates in the same direction in a staggered manner; a plurality of filler frames are arranged in the flocculation grid; fan blade fillers are mounted at the upper parts of the filler frames; the fan blade filler comprises a support formed by connecting a plurality of square pipes, an upper pressing plate arranged at the upper end of the support and a lower pressing plate arranged at the lower end of the support, through holes are formed in the upper pressing plate and the lower pressing plate, a plurality of impellers are arranged on the pin, each impeller comprises an outer cylinder, a plurality of blades arranged on the outer cylinder and an inner cylinder arranged in the outer cylinder, and the inner cylinder is fixedly installed on the pin. The fan blade filler combination is regular, the flocculation passing time is short, water flow forms tiny vortex flow in the flocculation zone, flocculation equipment in a hydraulic stirring form is arranged into grids inthe flocculation zone, vortexes are increased, the colloid collision probability and the coagulation effect are improved, the turbulence vortex effect is enhanced, and the flocculation coagulation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a grid flocculation tank based on wind blade structure filler. Background technique [0002] With the progress of society, human activities have caused surface water pollution to become more and more serious, and surface water treatment technology has attracted more and more attention. Coagulation is the process of combining small particles into larger aggregates (floes) and the adsorption of dissolved organic matter onto particle aggregates in order to remove these impurities during subsequent solid / liquid separation. As a coagulation water treatment device, the grid flocculation tank has been widely used in the field of water treatment. The grid flocculation tank is composed of multi-grid vertical wells that cross up and down. Multi-layer grids are set in the vertical shafts as flow turbulence devices. According to the turbulent vortex theory, when the tur...

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Problems solved by technology

At present, there are some shortcomings in the traditional grid flocculation tank. For example, if the law of hydrodynamics is not fully and rationally used, due to the certain viscosity of water, a certain resistance will be formed, and the water flow will gradually lose the eddy current state, and the flocculation effect will become poor. In order to enhance its flocculation effect We can only increase the number of grid layers in the shaft or increase the number of shafts, which will not only increase the head loss and prolong the coagulation time, but too many grid layers will increase the probability of floc breakage, which will deteriorate the coagulation effect , and bring certain difficulties to the construction and maintenance, so the method of adding fillers between the grids in the individual shafts can be used to optimize the hydraulic conditions between the grids, enhance the flocculation efficiency without bringing more damage to the construction and maintenance High cost, but the traditional grid flocculation tank equipped with this filler cannot exert the maximum effect, so it is necessary to provide a new type of grid flocculation tank that can be equipped with filler

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