Coating waste liquid solid-liquid separation device

Abstract

The invention discloses a coating waste liquid solid-liquid separation device, and belongs to the technical field of waste liquid treatment. The coating waste liquid solid-liquid separation device comprises a separation tank, a water inlet tank is fixedly connected to the upper portion of the separation tank, an inclined plate is fixedly connected to one side of the separation tank, baffles are arranged on the two sides of the inclined plate, and an impurity discharging tank is fixedly connected to the bottom end of the inclined plate; an opening is arranged at one end of the impurity discharging tank, a first rotating shaft is rotatably connected in the water inlet tank, a plurality of blades are fixedly connected to the outer wall of the first rotating shaft, a water inlet platform is arranged at the top of the water inlet tank and is communicated with the interior of the water inlet tank through a water inlet, the water inlet is formed in one side of the first rotating shaft, a water falling opening is formed in the bottom of the water inlet tank, and one end of the first rotating shaft extends out of the water inlet groove and is fixedly connected with a speed changing assembly. According to the separation device, continuous separation work of a large amount of waste liquid can be met, separated impurities are automatically pushed into the collecting box, follow-up centralized treatment is facilitated, electric drive is not needed, electric energy is saved, and the earlier-stage investment cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of waste liquid treatment, and in particular relates to a solid-liquid separation device for paint waste liquid. Background technique [0002] The paint waste liquid mainly comes from the cleaning of batching tanks and reaction kettles and the process of preparing paints of different colors. The waste liquid has a high concentration of organic matter, high chroma and suspended matter content. In addition, it also contains a large amount of nano-scale inorganic materials, such as titanium dioxide, Kaolin and various colored pigments, etc., the main treatment process is as follows: firstly undergo air flotation treatment, then enter the regulating tank, the effluent of the regulating tank enters the hydrolysis acidification tank, and then the effluent enters the integrated oxidation ditch, mainly to complete the removal of organic pollutants And synchronous nitrification and denitrification denitrification, an...

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Problems solved by technology

[0004] First, it is difficult to meet the continuous separation work of a large amount of waste liquid. Second, the separated impurities are still easy to accumulate inside the separation device, which is difficult to deal with later, which increases the workload. Third, relying on electric drive requires a lot of power consumption. Input cost is too high

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