An underground self-elevating filter device

Abstract

The invention belongs to the technical field of dirty water purification treatment, and particularly relates to a buried type self-lifting filtering device. The buried type self-lifting filtering device comprises a device cavity and an inner barrel sleeved with the device cavity, the device cavity and the inner barrel are internally tangent, a crescent cavity is formed between the device cavity and the inner barrel, through holes are formed in the lower half portion of the inner barrel, the crescent cavity is filled with a filter medium layer, an immersible pump is arranged at the bottom of the inner barrel, a pump outlet of the immersible pump is communicated with a pipe network outside the device cavity, a fixing baffle is arranged on the upper surface of the filter medium layer and provided with a sewage discharge pump, and the sewage discharge pump is communicated with a sewage discharge pipe outside the device cavity. An electric appliance control part is separated from the filter cavity, a high failure rate caused by moisture is reduced, pressure filtration is carried out through the gravity difference of water levels and pumping of the immersible pump, a pressurization device is omitted, the filtering efficiency is improved, and the production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of sewage purification treatment, and in particular relates to an underground self-elevating filter device. Background technique [0002] In order to implement General Secretary Xi Jinping's spirit of the central urbanization work conference and related speeches, my country will gradually vigorously promote the construction of "sponge cities" with natural accumulation, natural infiltration and natural purification in the future, increase the economical use of water resources, protect and improve urban ecological environment, and promote the construction of ecological civilization. Rainwater has become the main source of urban water pollution, and the pollutants in the water environment are mainly brought by rainwater. This kind of pollution is called non-point source pollution (non-point source pollution), which is more difficult to control than traditional point source pollution. Developed countries began ...

AI Technical Summary

Problems solved by technology

The rainwater carries a large amount of plant residues, heavy metals and pesticide residues into the surface water body and groundwater through the leaching of the atmosphere, the scouring of the ground structures and the surface, etc., because the rainwater is directly discharged into the pipeline without pre-treatment, blocking The pipes are blocked, which makes the drainage poor and causes urban flood disasters. At the same time, the harmful substances contained in it seriously pollute the groundwater.

[0004] The current buried water filtration equipment, its electrical control part is in the underground humid environment, the electrical equipment is seriously damp, and the failure rate is high; the existing filtration device needs pressurized equipment to increase the filtration efficiency, which increases the investment in equipment , which makes the structure complex and the volume of the equipment increase. It also has the disadvantage of frequent maintenance, resulting in high use and maintenance costs, which seriously affects the collection and utilization of rainwater.

Moreover, the pipeline utilization rate of the backwashing device in the existing filtering equipment is low, and its unreasonable structural design not only increases the cost, but also increases the overall weight and volume of the equipment accordingly

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