Wear-resistant cutter-suction pump

Abstract

The invention provides a wear-resistant cutter-suction pump, belongs to the field of electromechanical techniques and solves the problem that a case of the existing cutter-suction pump is easily caused to be damaged due to sand and stone impact and cavitation. The wear-resistant cutter-suction pump comprises a pump case, an impeller and a delivery pipe, wherein the impeller is arranged in the pump case and the delivery pipe is communicated with an inner chamber of the pump case. The wear-resistant cutter-suction pump is characterized in that a plurality of magnetic wear-resistant blocks are arranged in the inner chamber of the pump case, and first magnets which can attract the wear-resistant blocks onto the inner wall of the pump case are arranged at the external part of the pump case. By attracting the wear-resistant blocks in the inner chamber of the pump case onto the inner wall of the pump body through the first magnets, a wear-resistant layer is formed on the inner wall, thus the pump body can be prevented from being worn by sand and stones, the inner wall can also be prevented from being damaged due to cavitation and the service life of the cutter-suction pump is prolonged.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, and relates to a twist-suction pump, in particular to a wear-resistant twist-suction pump. Background technique [0002] With the continuous expansion of the scale of my country's import and export trade, the port throughput has grown steadily, and the requirements for port construction and inbound and outbound waterways have become higher and higher. The Yangtze River Delta, Pearl River Delta, Bohai Rim, The port groups along the southeast and southwest coasts, as well as the construction of shipping centers such as Shanghai, Ningbo, and Zhoushan have created a strong market demand for dredging services. At the same time, due to the intensification of soil erosion and the increase of industrial, agricultural and domestic sewage, the serious pollution of rivers, lakes and ports has led to serious degradation of functions and increasingly serious siltation, especially at the entrance of ...

AI Technical Summary

Problems solved by technology

At present, in order to improve the wear resistance of the pump casing, various anti-wear materials have been applied, but the improvement effect is not good.

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