Water treatment filter based on multi-stage filtering function

Abstract

The invention provides a water treatment filter based on a multi-stage filtering function. The water treatment filter comprises a box body, a boss arranged in the box body, a treatment pond formed between the boss and the box body, and a first filtering unit, a second filtering unit and a third filtering unit which are arranged at the top end of the boss and are sequentially arranged in the horizontal transverse direction, the boss is provided with a plurality of stages, a plurality of slope peaks of which the heights are gradually reduced are sequentially formed in the horizontal transverse direction, slope valleys are formed among the slope peaks, the first filtering unit and the second filtering unit are correspondingly arranged at the slope peaks or close to the slope peaks and deviate from one side of the treating pond, an air pressure device is arranged in the boss, and the first filtering unit and the second filtering unit are arranged in the treating pond. A plurality of air inlet nozzles connected with the air pressure device are also arranged on the slope surface of one side, deviating from the treatment tank, of the boss; a propeller is arranged on one side, opposite to the boss, in the treatment tank. According to the invention, the multi-stage filtration treatment of water is realized, and the water treatment quality is improved.

Description

technical field [0001] The invention relates to the technical fields of environmental protection and water resources treatment, and more particularly to a water treatment filter based on a multi-stage filtration function. Background technique [0002] In the existing water treatment filter, the filter material is sealed in the tank, and the water is forced to pass through the filter material layer by means of pressure, and the harmful substances in the water are intercepted or adsorbed by the filter material to achieve the purpose of water filtration. When the water flow reaches a certain level and the filter material intercepts or absorbs harmful substances in the water, the filter loses its filtering effect. At this time, the filter material needs to be backwashed and / or regenerated (backwash is to reverse the direction of the filter water flow and add Press the sewage until it is cleaned, the regeneration is to put the chemical agent into the tank and soak the filter mate...

AI Technical Summary

Problems solved by technology

Existing water treatment filter has the following disadvantages: 1. When backwashing, the water flow intensity is required to be large, which wastes water resources

2. The backwashing of the filter material attached to the tank wall is not thorough enough to form a dead angle, and the filter material agglomerates for a long time, which greatly reduces the filtering capacity of the filter

3. Under the action of long-term water flow pressure, the filter material has a large bulk density, and the regeneration solution is used for replacement without bubbles. The reaction is very slow and the efficiency is very low.

[0003] Secondly, most of the current water treatment equipment adopts a single treatment. Before the water is discharged, the water is only treated once through the water treatment equipment and then discharged; because the single treatment only treats the water once, the treatment is not thorough. Many pollutants present in the water are not absorbed

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