Shaft sinking tubular steel derrick

Abstract

The invention relates to a shaft sinking tubular steel derrick. The shaft sinking tubular steel derrick is of a flat-topping pyramid with a full-symmetric main body truss and comprises a main support rod, a sheave wheel platform, an intermediate platform, a strike turning platform, support rods and the like, wherein the sheave wheel platform, the intermediate platform and the strike turning platform are connected to the main support rod from top to bottom; the support rods correspond to three layers of platforms; the sheave wheel platform is arranged in a shape like a Chinese character 'ri'; the 'ri'-shaped middle is of a double-beam structure; the support rod of the sheave wheel platform is arranged in an inverted V-shaped shape and is connected with center nodes on four sides of the sheave wheel platform and nodes at four corners of the intermediate platform; and the axis of the support rod of the intermediate platform is superposed with an axial extension line of the support rod of the strike turning platform to form an inverted V-shaped arrangement for connecting center nodes on four sides of the intermediate platform with an intersection point of the main support rod and a derrick footing. The shaft sinking tubular steel derrick is suitable for a vertical shaft with the net diameter being 7-11m, the average depth being not more than 1800m and the work load of the derrick being not more than 620t as well as second-stage construction of projects; the processing, transporting, mounting and dismounting steps are simplified; and the shaft sinking tubular steel derrick is stronger in adaptability and provides reliable guarantee for quick construction and work period shortening.

Description

technical field [0001] The invention relates to the field of shaft engineering construction, in particular to a shaft sinking steel pipe derrick suitable for shaft shafts with a net diameter of 7 to 11 m, an average depth of ≤1800 m, and a working load of the derrick of ≤620 t and the construction of the second-phase engineering. Background technique [0002] Sinking steel pipe derricks in my country's industry standards are divided into five categories and seven models, with a maximum (Type V sinking steel pipe derrick) working load of 427t and a broken rope load of 1067t, and can construct shaft projects with a maximum net diameter of 8m and a depth of ≤1000m; Due to structural limitations of the derrick, the derrick rods at corresponding positions are not interchangeable, the assembly direction is single, and the hoisting length of a single piece is too large (18.05m), which makes on-site installation difficult and poses a great safety hazard. [0003] In recent years, min...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a sinking steel pipe derrick and an installation method of the sinking steel pipe derrick, which is used to solve the problem that the sinking steel pipe derrick in the prior art is not suitable for net diameter 7-11m, average depth ≤ 1800m, Shaft Shaft with Derrick Working Load ≤ 620t and Problems in Phase II Project

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