Filter capable of removing suspended substance in water

Abstract

The invention relates to a filter which can remove the suspended substance in water, including a tank body (1) which is provided with a water inlet (21), a water outlet (11) and a sewage drainage outlet (12), a filter mesh (4), a drive device (5) and a sewage drainage rotary shaft (6), the sewage drainage rotary shaft (6) is vertically inserted in the central position of the tank body (1), the sewage drainage rotary shaft (6) is provided with a central through hole, the bottom end (61) thereof is communicated with a sewage drainage outlet (12); the filter mesh (4) is cylindrical and distributed by arranging the sewage drainage rotary shaft (6) as the center; furthermore, a plurality of hollow suction rods (7) are arranged on the side wall of the sewage drainage rotary shaft (6), the opening at the root part of each suction rod (7) is communicated with the central through hole of the sewage drainage rotary shaft (6), and the head part of each suction rod (7) is provided with a suction head (8) which is contacted with the filter mesh (4). The filter has simple structure, convenient usage and operation, non-return of the sewage and longer service life, which can be applied in the removal of the suspended substances in rainwater, river water, various types of industrial waste water and other sewage, effectively filter the big granular suspended substances in the sewage at higher removal rate of the suspended substances.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a filter capable of removing suspended matter in water. Background technique [0002] Nowadays, human beings have an increasing demand for water resources, but water resources are very limited, and due to the industrialization and living of society, many water resources are artificially polluted. Therefore, people need to develop and utilize some new water resources, such as rainwater , river water, printing and dyeing factory wastewater and other sewage. Due to the pollution of the environment, various indicators of rainwater and river water will also exceed the standard, and do not meet various usage standards. Therefore, these water resources need to be filtered before they can be recycled. [0003] At present, there are also some filters that can be used to filter suspended matter in water. As the patent No. ZL200520005509.1 (the announcement number is CN2764461Y), the Chinese uti...

AI Technical Summary

Problems solved by technology

But this filter has the following defects: first, because the position of the water inlet on the tank body is below the water outlet, when the filter is actually working, the sewage needs to enter the tank body with a certain pressure, so that it can be discharged smoothly. The water outlet on the top of the tank flows out, so the energy consumption of sewage filtration is relatively large; second, during filtration, suspended solids and other impurities will adhere to the filter bag and the inner and outer metal mesh baskets, and the three-layer filter mesh is also It is easy to accumulate impurities, or even get stuck between layers, which will increase the difficulty of cleaning the filter screen. Although backwashing can be performed, the dirt on the inside of the filter screen must pass through the filter holes of other filter screens, and then It is very difficult to flush into the bottom of the tank, and it is difficult to clean up, especially for band-shaped dirt, which often stays on the filter screen all the time, while the filter bags, inner and outer metal mesh baskets, and dirt between layers have to be cleaned up. When it is cleaned and dredged in time, it will affect its next filtering work, which will greatly reduce the filtering effect; third, when the filter is cleaning the filter screen, it needs to stop the normal filtering work, and the water flow in the tank needs to reach Only a certain pressure can achieve backwashing, which makes the working efficiency of the filter lower and the control of water pressure is stricter.

Images