Filtering device of self-controlled liquid surface

Abstract

A filtering device which can automatically control the liquid level relates to the technical field of water treatment; the technical problem of getting water for filtration is solved by the filtering device. The device is a cubical box body, one side of which is provided with a square door opening, the box body is internally provided with a panel turnover door, and the lower edge of the panel turnover door is rotatablely connected with the lower side of the square door opening; the panel turnover door only can rotate along the horizontal axis of the square door opening; the change from closing to wide opening of the square door opening can be realized; the left and right perpendicular sides of the panel turnover door are connected with the left and right perpendicular sides of the square door opening by a waterproof plastic membrane (sealing), so that the left and right perpendicular sides of the panel turnover door are ensured not to leak water when the panel turnover door rotates; the upper end of the panel turnover door is provided with a can buoy, and the distance between the upper edge of the panel turnover door and the water surface can be controlled by adjusting the buoyancy of the can buoy; an exit is arranged at the bottom of the box body. The filtering device has the characteristics of low cost, little energy consumption, simple maintenance, good effecting for removing the floats and suspended substance, flexible water taking quantity, being easy to be installed in a matching way, and having no environmental secondary pollution.

Description

technical field [0001] The invention relates to water treatment technology, in particular to a pretreatment technology in the water treatment technology which can effectively skim off suspended solids in water or effectively skim off liquid floating on the water surface while taking in water. Background technique [0002] At present, in the projects of landscape water treatment, there will always be a problem of taking water from landscape lakes. On the surface, as long as a pipe is laid, the mouth of the pipe is lower than the water surface, and the water is taken from the lake by siphon, but in fact, there are still several problems: [0003] 1) The nozzle cannot be set too high, the water level of the lake will change, if the setting is raised, the water level will drop, which may cause the pump to suck up, resulting in equipment accidents; [0004] 2) If the nozzle is set in the middle of the water level, fish may be raised in the lake, and the fish will be sucked into ...

AI Technical Summary

Problems solved by technology

[0003] 1) The nozzle cannot be set too high, the water level of the lake will change, if the setting is raised, the water level will drop, which may cause the pump to suck up, resulting in equipment accidents;

[0004] 2) If the nozzle is set in the middle of the water level, fish may be raised in the lake, and the fish will be sucked into the pipe by the suction of the nozzle, causing the pipe and nozzle to be blocked, and the floating objects on the lake such as branches, leaves, paper scraps, etc. It may be inhaled and always float on the lake, affecting the appearance;

[0005] 3) If the nozzle is set at the bottom, sediments such as sludge at the bottom of the lake will be easily sucked into the pipeline, which will also cause problems such as pipeline and nozzle blockage

[0008] In addition, in the pretreatment technology of sewage treatment technology that effectively removes floating liquids on the water surface, the adsorption equipment often cannot automatically control the upper and lower positions of the inlet of the filtration and separation device according to the height of the water surface, making it difficult to remove oily liquids floating on the water surface. carry out effectively

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