Design of hoisting slag hopper by utilizing shaft gantry

Abstract

The invention discloses design of hoisting a slag hopper by utilizing a shaft gantry. According to the design, a slag hopper of the dimension (3m*2.5m*2m) is produced from a steel plate of more than 2 cm in thickness in a welding manner; double doors are arranged oppositely at the bottom of the slag hopper; two groups of fixed pulleys used for direction control are mounted on the side surfaces of hopper doors; steel wire ropes used for controlling the hopper doors are hung by travelling gantry crane secondary hooks; after the hopper doors are closed, both primary hooks and the secondary hooks are subjected to hoisting at the same time; after the slag hopper is lifted out of a drilled shaft and conveyed to a slag disposal pit, the hopper doors are opened by lowering the secondary hooks, so that slag is discharged to the slag disposal pit; and then, the hopper doors are closed by lifting the secondary hooks. The design provided by the invention is an improvement in the conventional slag hopper for drilled shaft slag removal, and has the advantages that the work efficiency of a drilled shaft gantry crane is improved during slag removal; the quantity of construction workers, the construction cost and the hidden danger in construction are reduced; and the construction progress is strongly guaranteed.

Description

technical field [0001] The invention relates to a design for lifting a slag hopper, in particular to a design for lifting a slag hopper of a shaft gantry crane. Background technique [0002] Qingdao Metro Phase I Project (Line 3) Civil Engineering Section 14 includes one station and two sections. The two sections are constructed using the underground mining method. There are three working shafts in total. The gantry crane grab bucket is used for the slag discharge operation. Since the geology of Qingdao is dominated by weathered rocks of different degrees, the diameter of the slag block is relatively large. It is easy to cause injury accidents, and the efficiency of slag discharge is low, which affects the progress of tunnel excavation. Contents of the invention [0003] The object of the present invention is to provide a design for hoisting the slag hopper of a shaft gantry crane, which can solve the above problems. [0004] In order to achieve the above object, the pre...

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Problems solved by technology

[0002] Qingdao Metro Phase I Project (Line 3) Civil Engineering Section 14 includes one station and two sections. The two sections are constructed using the underground mining method. There are three working shafts in total. The gantry crane grab bucket is used for the slag discharge operation. Since the geology of Qingdao is dominated by weathered rocks of different degrees, the diameter of the slag block is relatively large. It is easy to cause injury accidents, and the efficiency of slag discharge is low, which affects the progress of tunnel excavation

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