Part for cleaning and pumping sludge in pile, sludge pumping equipment and method

Abstract

The invention discloses a part for cleaning and pumping sludge in a pile, sludge pumping equipment and method and belongs to the technical field of pile foundation construction. The part and the sludge pumping equipment comprising the part comprise a rack, wherein the rack can slide up and down in the pile, a sludge dredging pump is arranged on the lifting rack, a cone-shaped guide hood is connected below the sludge pumping pump, a high pressure nozzle is arranged in the circumferential direction of the outer surface of the guide hood, and the high pressure nozzle is connected to a high pressure water pipe; and a blow-off pipeline connected outside the pile is arranged on the guide hood. By crushing sludge in the pile by means of a high-pressure water jet, wear of working equipment is relatively low, and the working cost can be lowered. The water jet is wide in action surface, so that the inner wall surface of a steel pile can be eliminated, and therefore, the cleaning effect is improved greatly and the eliminating area can reach 95%. By designing an immersible sludge dredging pump, the sludge dredging pump is directly acted to a sludge dredging area in the pile. The suction forceat a pump port is large, so that the efficiency of pumping sludge in the pile is improved.

Description

technical field [0001] The disclosure belongs to the technical field of pile foundation construction, and in particular relates to a component for cleaning and pumping mud in a pile, mud pumping equipment and a method. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] According to the IHS report, the number of offshore oil and gas facility decommissioning projects is increasing significantly. It is estimated that there will be more than 600 offshore oil and gas facility dismantling projects in the next five years alone, and the offshore platform market is ushering in a new peak period of scrapping. As far as the current domestic mud pumping equipment market in the pile legs of abandoned marine facilities is concerned, foreign mud pumping equipment is the mainstay. The research and development of special mud pumping equipment in pile legs in my count...

AI Technical Summary

Problems solved by technology

However, the equipment uses a drill bit for sludge crushing. The drill bit is easy to wear and has a poor effect on removing the sludge on the inner wall of the pile leg, which not only increases the cost of use but also has a poor dredging effect.

However, if the air-lift mud pumping method or the surface pump mud pumping method is used, the suction at the mud pumping end is small, and the mud pumping efficiency is low.

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