mechanical filter

Abstract

The invention discloses a mechanical filter, comprising a tank body, wherein a filter material is arranged in the tank body; a water inlet and a manhole are formed in the top end of the tank body; and a water outlet is formed in the bottom of the tank body. The mechanical filter is characterized in that a water-gas filtering and washing device is arranged at one side of the bottom of the tank body; a backwashing blow-off pipe is arranged at one side of the upper part of the tank body; the water-gas filtering and washing device comprises a water inlet pipe, a water inlet branch pipe, an exhaust pipe, a drain pipe, a water outlet pipe, a backwashing gas pipe and a backwashing water pipe; an inlet of the water inlet pipe is connected with the water inlet branch pipe and the exhaust pipe in parallel; an outlet penetrates through the water inlet of the tank body and is communicated with a water distributor; the water inlet branch pipe is communicated with a connecting pipe; the inlet of the backwashing water pipe is communicated with the connecting pipe; the outlet of the backwashing water pipe is horizontally connected with the drain pipe, and is vertically connected with a backwashing connecting pipe; the inlet of the water outlet pipe is connected with a drain outlet; one side of the water outlet pipe is horizontally connected with the backwashing gas pipe; and the upper wall of the water outlet pipe is communicated with the backwashing connecting pipe. The mechanical filter has the advantages of being simple in structure, high in filtering efficiency, convenient to wash, rapid and convenient to maintain, convenient to operate, safe to use and the like.

Description

technical field [0001] The invention relates to the technical field of purification equipment, in particular to a mechanical filter. Background technique [0002] There are generally impurities such as colloids, fine suspended solids, and particles in natural water, and direct use in production will affect the life of the equipment and the quality of the product. Therefore, it is usually necessary to purify the water before using the above natural water so that it can meet production requirements. However, the current water purification treatment usually adopts chemical or biological treatment methods, but most of these methods are suitable for water quality treatment, such as wastewater or sewage treatment. Through chemical and biological treatment methods, harmful substances in wastewater or sewage can be treated to form a To achieve the effect of purifying water quality, but these water quality treatment methods basically have no effect on the colloidal or granular suspe...

AI Technical Summary

Problems solved by technology

When working, open the water inlet valve, the raw water flows into the water distributor at the top of the tank from the water inlet and the water inlet pipe, and the water distributor passes through the filter material in the tank and then flows out from the water outlet at the bottom of the tank, and the raw water is filtered. The final particles are discharged from the outlet pipe at the top. The disadvantage is that although the material of the filter material has been changed, it will gradually be blocked after a period of use, affecting normal filtration and resulting in unsatisfactory filtration effects.

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