Disassembly construction method for dual-cantilever ship unloader

Abstract

The invention provides a disassembly construction method for a dual-cantilever ship unloader. The method is characterized by comprising the steps that S1, with cutting demarcation points of connectorsas the basis of the whole ship unloader, components are divided, and the connectors among the cutting demarcation points are all components which need to be disassembled; S2, the disassembly sequenceof all the components is determined, girders of the two sides of a main ship unloader body and pull rods of the girders are disassembled at first, and then the components on the main ship unloader body are disassembled from top to bottom; S3, anti-toppling and reinforcement measures are arranged for the ship unloader, wheels of a large vehicle of the ship unloader are anchored and locked, the twoside faces of a walking mechanism of the large vehicle are provided with inclined supports, the inclined supports are welded to a frame supporting disc crossing a rail, and a frame supporting disc base is placed on a concrete board face of a wharf; S4, hoisting of a floating crane and a crane is used for disassembling the ship unloader. According to the disassembly construction method, the scientific and reasonable disassembly method and construction sequence and the complete protection measures are determined, construction is organized according to the construction method, and the construction safety, project progress and environmental friendliness are guaranteed.

Description

technical field [0001] The invention relates to the technical field of dismantling a ship unloader, in particular to a construction method for dismantling a double-cantilever ship unloader. Background technique [0002] Grab ship unloaders are the main ship unloading equipment in bulk material terminals at present, and they are scattered in inland rivers and coastal terminals. With the frequency of use and operating conditions of the ship unloader, the steel structure will be corroded, the deflection of the cantilever girder will exceed the standard, cracks will occur in the main stress-bearing components such as the girder and the large diagonal brace of the door frame, the equipment of the whole machine will deteriorate, and the safety performance will not be guaranteed. The service life is generally 20-25 years; due to technological progress, the terminal bulk unloading equipment is gradually replaced by continuous ship unloaders with higher efficiency, lower energy consu...

AI Technical Summary

Problems solved by technology

Since the wharf has a bar-shaped or L-shaped structure, when the ship unloader is dismantled, the belt corridor below it is still in production, so the ship unloader is still dismantled online; the dismantling unit of the ship unloader is heavy and the wharf has a narrow working space. It is not conducive to the in-place hoisting of large cranes, so truck cranes are generally used in conjunction with floating cranes for hoisting and dismantling; floating crane operations involve maritime management, water operation safety, and tide ebb and flow, hydrogeology, etc., so the hoisting and dismantling involves a wide range of safety hazards Many, complex technology, a little carelessness may cause irreparable losses

[0004] According to the relevant information, there is no perfect method for dismantling the double-cantilever ship unloader in China at present, and there are many unscientific and unreasonable places in the construction

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