Multistage sewage filtering equipment

Abstract

The invention relates to filtering equipment, in particular to multistage sewage filtering equipment, which has the advantages of multistage filtering and comprehensive filtering. The multistage sewage filtering equipment comprises a frame body, a rubber plug, a discharging tube, a first valve, a first screen plate, sand, a first sealing bearing, a mounting plate, a motor, a first revolving shaft,blades, a feed hopper and the like, wherein the lower part of the right wall of the frame body is provided with a discharging hole; the rubber plug is inserted into the discharging hole; the discharging tube is arranged on the lower part of the left wall of the frame body; the first valve is arranged on the discharging tube; the first screen plate is arranged on the lower part in the frame body;and the sand is placed into the frame body on the lower part of the first screen plate. By adopting the multistage sewage filtering equipment, the effects of multistage filtering and comprehensive filtering are achieved; the blades are driven to rotate clockwise and anticlockwise through the clockwise and anticlockwise rotation of the first revolving shaft, so that sewage and a flocculant can be mixed better; the sewage can be filtered again with a second screen plate, so that the sewage can be filtered more comprehensively.

Description

technical field

[0001] The invention relates to a filtering device, in particular to a sewage multi-stage filtering device. Background technique

[0002] Sewage, usually refers to certain polluted discharge water from domestic and production. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants of sewage are pathogenic pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants. When treating sewage, it is necessary to filter the sewage, but large impurities can be filtered, but some small suspended solids cannot be filtered, which leads to incomplete sewage filtration.

[0003] To sum up, it is necessary to develop a multi-stage filtration and comprehensive sewage multi-stage filtration equipment to overcome the shortcomings of one-time filtration and incomplete filtration in the prior art. Contents of the invention

[0004] (1) Technical problems to be solved

[0005] In order to overcome the short...

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