River channel dredging, screening and mud-cleaning method and equipment

Abstract

The invention provides a river channel dredging, screening and mud-cleaning method and equipment. A combined lifting structure operating under action of negative pressure is adopted, stone with a large density and floating rubbish with a small density are screened out by means of dead load from rubbish mixed with mud and are respectively collected. A mud pump (4) is installed on one side of a boxbody (1). The lower portion of the other side of the box body (1) is provided with a mud pipe (5). The inner end of the mud pipe (5) communicates with a stone collecting device (3) vertically installed in the box body (1) through a mud jet opening (12). A floating rubbish screening box (2) is installed on the top of the stone block collecting (3). The problems that rubbish in small and medium-sized river channels are complicated and diversified, and mechanical operation is difficult are solved. The interception ratio of the stone and the floating rubbish reaches 90% or over. The river channeldredging, screening and mud-cleaning equipment is high in self-suction capacity, stable in conveyance and operation, simple and compact in structure and convenient to assemble, disassemble and maintain. The dredging construction efficiency is significantly improved, labor is liberated, mechanization of dredging of the small and medium-sized river channels is facilitated, and the river channel dredging, screening and mud-cleaning equipment is suitable for use and popularization.

Description

technical field [0001] The invention relates to an underwater dredging technology suitable for medium and small rivers, and belongs to the technical field of IPC classification C02F11 / 00 sludge treatment or E02F5 / 00 special-purpose dredging machine technology, especially a river dredging, screening and dredging method and equipment. Background technique [0002] Mud pump is a pump with a wide range of applications, and the mud pump used in the field of oil drilling has developed rapidly. In fact, some non-clean water pumps such as sewage pumps and slurry pumps are also collectively referred to as mud pumps. [0003] Commonly used mud pumps are piston or plunger type. The crankshaft of the pump is driven by the power machine to rotate, and the crankshaft drives the piston or plunger to reciprocate in the pump cylinder through the crosshead. Under the alternate action of suction and discharge valves, the purpose of pressure feeding and circulating flushing fluid is realized. ...

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a method and equipment for dredging, screening, and desilting of river channels, to solve the problem that the prior art is not suitable for the complex conditions of silt and garbage components in small and medium-sized river channels, and to realize energy-saving, stable, economical and effective dredging work

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