Two-level type sewage treatment grid plate

Abstract

The invention provides a two-level type sewage treatment grid plate and belongs to the technical field of sewage treatment equipment. The two-level type sewage treatment grid plate is used for solvingthe problems that the present grid plate cannot filter different impurities in sewage, and the like. The two-level type sewage treatment grid plate comprises a frame; a water inlet and a water outletare respectively formed on the front and rear ends of the frame; a plurality of fixed grid sheets are distributed between the water inlet and the water outlet at equal intervals; the upper ends and lower ends of the fixed grid sheets are respectively fixed with the upper end and lower end of the frame; the two-level type sewage treatment grid plate further comprises a bracket moveably arranged inthe frame; a driving source capable of driving the bracket to move along horizontal direction is arranged on the frame; moveable grid sheets corresponding to the fixed grid sheets are arranged in thebracket; the side walls of the moveable grid sheets can be clung to the side walls of the adjacent fixed grid sheets. The two-level type sewage treatment grid plate is capable of filtering two impurities in different sizes in the sewage.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, in particular to a two-stage sewage treatment grid plate. Background technique [0002] With the rapid development of China's economy, the environment has also suffered serious damage. Among them, water pollution is directly related to people's health. The pollution of surface water is obvious, and the pollution of groundwater is even more shocking. Sewage treatment through sewage treatment plants is one of the mainstream means of sewage treatment. [0003] Chinese patent CN 208008490 U discloses a grid plate for sewage treatment with variable spacing, which includes a frame, a grid piece is arranged in the frame, and a sliding bar is installed in the frame, and the grid piece is slidably socketed on the sliding bar, adjacent to it. Springs are arranged between the two grid pieces; a distance-adjusting frame is installed on the frame, and the distance-adjusting frame includes ...

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Problems solved by technology

[0004] However, the above-mentioned grid plate still has the following defects: when the dial moves, the grid pieces move synchronously, but it can be seen from the figure that the dial and the grid pieces are in one-to-one correspondence. When the dial moves, each The grids move synchronously. In fact, the distance between two adjacent grids does not change. Therefore, it cannot play the role of variable spacing, so it cannot solve the problem of filtering different impurities in sewage

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