Environment protection gully filter cone

Abstract

The invention discloses a filter cone for an environmental protection type rain water inlet, which is arranged on the lower part of a rain water grate of the rain water inlet. In the invention, the shape of an upper mouth of the filter cone is matched with the shape of the rain water grate and the cross section of the upper mouth of the filter cone is small in the lower part and big in the upper part; the filter cone has the bottom sealed and upper ends of circumferential side walls provided with outer edges extending outward, and the circumferential side walls are provided with water filtering holes, and a certain distance is left between bottom ends of water filtering holes and the bottom of the filter cone, which makes the bottom of the filter cone have a certain storing capacity; widths of water filtering holes gradually become bigger from the bottom to up; rain water enters the filter cone and enters the inner part of the rain water inlet by water filtering holes, pollutants in rain water, widths of which are bigger than widths of the water filtering holes, are blocked in the filter cone; simultaneously solid pollutants in rain water, which are relatively heavy, are deposited on the bottom (3) of the filter cone. The filter cone of the invention can block 10 to 20 percent of pollutants in surface flow and simultaneously ensure the successful collection and discharge of rain water, thereby the filter cone has obvious environmental ecological benefit, economic benefit and social benefit.

Description

Environmentally friendly rainwater filter bucket 1. Technical field The invention relates to a filter bucket for intercepting pollutants in a ground rainwater outlet, belonging to the fields of water conservancy engineering and environmental engineering. 2. Background technology The gully is the entrance for ground rainwater to enter the stormwater pipeline. The traditional gullies in our country, whether they are single grate or double grate, discharge ground rainwater directly into downstream rainwater pipes. Only the rain grate above the rainwater outlet can intercept large pollutants such as leaves and plastic bags, and there is no purification measure for rainwater. Studies have shown that the concentration of urban road runoff pollutants SS, organic matter and heavy metals is basically the same in order of magnitude as that of untreated urban domestic sewage, and the concentration of suspended solids in some road runoff, especially initial rainwater runoff, is even ...

AI Technical Summary

Problems solved by technology

Only the rain grate above the rainwater outlet can intercept large pollutants such as leaves and plastic bags, and there is no purification measure for rainwater

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