Flocculation reactor with special-shaped spoiler

Abstract

The invention relates to a flocculation reactor with a special-shaped spoiler, and the flocculation reactor provided by the invention comprises a reactor shell, a stirrer arranged in the middle part of the reactor, special-shaped baffles arranged on the inner wall of the reactor and spoiler grids arranged on an upper head, wherein the upper part of the side wall of the shell is provided with a material charging port, and the bottom part of the side wall of the shell is provided with a material discharging port; the forms (the shapes of the axial cross sections) of the special-shaped baffles comprise bulges in a sine shape, a wave shape, a semicircular arc shape, a circle shape or an irregular shape; the baffles are arranged vertically, obliquely or horizontally; and multiple baffles are uniformly or irregularly scattered or continuously fixed on the inner wall of a flocculator. The height, width and thickness of the spoiler can be changed along the circumference direction or axial direction of the inner wall of the reactor. The spoiler and the stirrer are matched through different forms, thereby fully mixing a flocculating agent with liquid, improving the shearing rate of fluid, reducing dead zones of a flow field, enhancing a micro-vortex and achieving the purposes of strengthening a flocculation flow field and enhancing the flocculation effect. The flocculation reactor provided by the invention has the advantages of simple structure, high flocculation efficiency, low cost and good application prospect, and is convenient in installation and maintenance.

Description

technical field [0001] The invention relates to a solid-liquid separation technology, in particular to a flocculation reactor with a special-shaped spoiler, specifically a stirring flocculation reaction device with a special-shaped spoiler inside. Background technique [0002] Flocculation refers to the destabilization of solid particles, colloidal particles and macromolecular substances in the solid-liquid two-phase system under the action of flocculants, and then contact and collide with each other under the promotion of macroscopic or microscopic forces, resulting in net capture and adsorption bridging, etc. The process of aggregating into large and dense particle clusters is an important pretreatment link in solid-liquid separation. In order to obtain a better flocculation effect, in addition to developing efficient flocculants, the form of flocculation reactors should be improved to strengthen the flocculation reaction process. [0003] The mechanical stirring floccula...

AI Technical Summary

Problems solved by technology

The publication number is CN200920097182.3, and the patent titled "a stirred tank with a helical curved baffle" proposes a form in which 3 to 6 curved baffles are evenly distributed on the inner wall of the reactor in the form of a helix. Used together, it can increase the axial velocity component and eliminate the dead zone at the bottom of the agitator, but it only increases the degree of turbulence of the fluid and speeds up the mixing, without increasing the micro-vortex in the flow field, and the flocculation effect is not significantly improved

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