Improved sewage solid liquid separation filtering device

Abstract

The invention relates the technical field of sewage treatment equipment and particularly relates to an improved sewage solid liquid separation filtering device. The improved sewage solid liquid separation filtering device comprises an outer cylinder, a filter drum, a main shaft, and a spiral blade on the main shaft, wherein a liquid outlet is formed in one end of the outer cylinder, a through hole is formed in the side wall of the filter drum, a charging cover plate and a discharging cover plate are respectively arranged on two ends of the side wall of the filter drum; one end of the discharging cover plate in the filter drum is downward inclined; a hollow part is arranged on the middle part of the discharging cover plate, and a magnet is fixed on the hollow part; and a first filtering net is arranged on the outer end of the filter drum. The invention discloses an improved sewage solid liquid separation filtering device which can eliminate the metal piece in the sewage, prevent the device damage and completely separate the solid and the liquid.

Description

Technical field: [0001] The invention relates to the technical field of sewage treatment equipment, in particular to an improved solid-liquid separation and filtration device for sewage. Background technique: [0002] Water is the source of life and an indispensable part of people's life. The sewage generated in the process of human life is one of the main pollution sources of water bodies, mainly feces and washing sewage. The sewage treatment device can separate the solid and liquid substances in the sewage, so that the liquid sewage can meet the water quality requirements for drainage or reuse. [0003] Chinese Publication No. CN104338360A, the patent of announcement date 2015.02.11 discloses a sewage treatment vehicle sewage solid-liquid separation filter device, see figure 1 , which includes a screw extrusion device, the screw extrusion device includes an outer cylinder 1, a filter cartridge 2, a main shaft 3 and a screw blade 4 on the main shaft 3, the side wall of the...

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Problems solved by technology

[0003] Chinese Publication No. CN104338360A, the patent of announcement date 2015.02.11 discloses a sewage treatment vehicle sewage solid-liquid separation filter device, see figure 1 , which includes a screw extrusion device, the screw extrusion device includes an outer cylinder 1, a filter cartridge 2, a main shaft 3 and a screw blade 4 on the main shaft 3, the side wall of the filter cartridge 2 is provided with a through hole 21, and the two ends are respectively There is a feed cover 22 and a discharge cover 23, this device can realize the solid-liquid separation of the sewage and compress the separated solid waste, but this structure has the following disadvantages: the metal substances contained in the sewage During the rotation of the spiral blade, there will be a hard collision with the blade, which cannot avoid damage to the blade; the side wall of the filter cartridge 2 is provided with a through hole 21, and some unsqueezed solids will be attached to the liquid separated from the through hole substances, causing the final separated water to contain more impurities, which does not meet the requirements; in summary, it is necessary to improve the existing sewage solid-liquid separation and filtration device

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