Percolate lifting device

Abstract

The invention relates to a percolate lifting device comprising a floating supporting mechanism, a water pump pipeline mechanism and a guardrail, wherein the floating supporting mechanism comprises more than four floating barrels and a supporting frame, the supporting frame comprises circumferential edge beams and a cross beam and / or a vertical beam fixed between the edge beams, and each floating barrel is installed at the bottom of the supporting frame through a fastener; the water pump pipeline mechanism comprises at least one screw pump, a water inlet pipe and a water outlet hose, the screw pump is installed on the cross beam and / or the vertical beam of the supporting frame, a water inlet of the screw pump is connected with the water inlet pipe, the distance H from a water inlet of the water inlet pipe to the bottom of the supporting frame is 0.5-1m, and a water outlet of the screw pump is connected with the water outlet hose; the guardrail comprises stand columns and stop levers, at least four stand columns are fixed on the circumferential edge beams of the supporting frame, and each stop lever is installed between adjacent stand columns. The invention has the advantages of convenience for repair and maintenance and capability of prolonging the service life of a water pump and conveying percolate continuously.

Description

technical field [0001] The invention relates to a leachate lifting device, which belongs to the technical field of sewage treatment. Background technique [0002] In addition to COD, BOD, NH3-N and other pollutants seriously exceeding the standard in the raw water of landfill leachate, there are also pollutants such as halogenated aromatic hydrocarbons, heavy metals and viruses. Therefore, landfill leachate raw water is a kind of high-concentration organic wastewater with complex components, which has high pollution load and comprehensive pollution. At present, biological nitrogen removal technology and membrane treatment technology are mostly used to remove high-concentration ammonia nitrogen. In the process of landfill leachate treatment, most landfills are built in hills or mountainous areas, and the regulating pools for collecting leachate are generally located in low-lying locations, and according to the terrain design, some regulating ponds have vertical walls, while ...

AI Technical Summary

Problems solved by technology

In the process of landfill leachate treatment, most landfills are built in hills or mountainous areas, and the regulating pools for collecting leachate are generally located in low-lying locations, and according to the terrain design, some regulating ponds have vertical walls, while the depth of the regulating ponds It is more than ten meters high, which is tens of meters different from the height of the treatment station. In order to solve the problem of leachate lifting and transportation, a high-lift delivery pump is required, and the problem of insufficient suction is solved by adding process water tanks, which not only increases the processing capacity system complexity, but also increases processing costs

Secondly, the submersible pump of the lifting device is installed at the bottom of the regulating tank. Since the raw water of landfill leachate contains many pollutants, these pollutants are easy to adhere to the surface of the submersible pump and form scales, resulting in scaled submersible pumps. The motor cannot dissipate the heat in time, so the motor is often burned, but the submersible pump is installed at the bottom of the adjustment tank, and the leachate in the adjustment tank cannot be completely drained, especially when the adjustment tank collects a lot of leachate. In this case, the submersible pump cannot be repaired and replaced

Furthermore, because the submersible pump is installed at the bottom of the pool, the water inlet pipe is located at the bottom of the regulating pool. Since the suction port of the water inlet pipe is close to the sludge at the bottom of the pool, and the water inlet pipe cannot be moved during the suction process, the water inlet pipe cannot be moved due to the suction of the sewage. More mud will affect the subsequent leachate treatment

In addition, the water inlet pipe is often blocked by sludge and needs to be dismantled and repaired frequently. However, the submersible pump is installed at the bottom of the pool, which brings inconvenience to the cleaning and replacement of the water inlet pipe. Therefore, it is often necessary to stop conveying leachate, which affects the leachate treatment system. Can't run continuously

In order to prevent secondary pollution of the environment caused by the odor overflow of the adjustment tank, the current adjustment tank needs to be covered with a floating polyethylene film on the top. Since the suction pipe cannot be fixed on the polyethylene film, this also increases the level of leachate. management inconvenience

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