Special construction process for mounting stacker-reclaimer gantry

Abstract

The invention discloses a special construction process for mounting a stacker-reclaimer gantry. The process comprises the following steps that first, the crane position is set, four auto cranes are adopted for hoisting, two 350t auto cranes serve as the main cranes, the hoisting points of the two 350t auto cranes are arranged at the centers of two arms at the top of the gantry up and down, the hoisting point of a 130t auto crane is arranged at the position, close to a central column, of the gantry, and the hoisting point of another 80t auto crane is arranged on the walking mechanism side of the gantry; second, a walking mechanism is hoisted; third, a gantry hoisting test is carried out, two cranes of the gantry are slowly hoisted by 0.5 m under the hoisting command at first, at the moment,the head of the gantry has already lifted, the 130t auto crane at the point B and the 80t auto crane at the point C are slightly lifted up to leave the ground to wait for 10 minutes, and the stressing conditions of all stressing points are checked; fourth, gantry rotating is conducted; and fifth, gantry lifting is made in place. According to the method, the structural design is reasonable, the gantry can be effectively mounted under the condition that a steel ball net rack is mounted, time is saved, and positioning and adjusting are facilitated.

Description

technical field

[0001] The invention relates to the technical field of stacker-reclaimer door frame installation, in particular to a special construction process for stacker-reclaimer door frame installation. Background technique

[0002] The gantry is an L-shaped irregular equipment with a span of 50 meters. It is divided into two box structures of 2800mm*1000mm. The horizontal projection length of the gantry is 50.82 meters. Separate supply, this equipment is supplied separately by the factory, assembled and installed on site, the assembly has been completed, and it has passed the acceptance test, meeting the conditions for lifting and hoisting.

[0003] Option 1: In previous engineering examples, the weight and size of this project were consistent. Since the steel ball grid was not installed at that time, and the crane had a large operating space, the main lifting point was selected at the highest point of the mast, and two 260-ton cranes were used. Set up a 130t truck c...

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