Construction method for assembling cone steel coal bucket of super-large type bundling polygonal coal bunker group

Abstract

The invention discloses a construction method for assembling a cone steel coal bucket of a super-large type bundling polygonal coal bunker group. A free lifting platform and electric hoists are utilized to conduct assembling construction, firstly, the steel coal bucket is divided into a plurality of sections, according to the size of each section of the steel coal bucket, a steel plate is cut into fan rings through a discharging machine, and the fan rings are rolled into shapes; then the first section of the steel coal bucket is welded and formed on the spot, hanging rings are evenly arranged on the outer side of the first section of the steel coal bucket, the first section of the steel coal bucket is hoisted in place through a truck-mounted crane, and the electric hoists are mounted at the hanging rings; the free lifting platform is assembled on the ground on the spot, and the circle center of the free lifting platform coincides with the circle center of the steel coal bucket; positioning baffles are arranged on the free lifting platform, the fan rings constituting a next section of the steel coal bucket are placed on the free lifting platform and formed into shapes; then longitudinal seams are welded; finally the parts needed for butting are placed on the free lifting platform, the free lifting platform is lifted to the butting position through the electric hoists, and annular seams are welded in pairs; and assembling of the rest sections of the steel coal bucket is completed sequentially in an inverted order.

Description

technical field [0001] The invention relates to a construction method for assembling conical steel coal buckets of a group of ultra-large clustered polygonal coal bunkers. Background technique [0002] The ultra-large clustered polygonal coal bunker group is a honeycomb coal bunker, which adopts a reinforced concrete frame structure, with a length of 210.35m, a width of 60.45m, and a height of 45m. It is a straight wall structure of the warehouse body, and a steel coal hopper structure below 20.6m. The steel coal scuttle is a conical structure with a height of 16.1m, an upper diameter of 14.8m and a lower diameter of 2.86m, which is a super large coal scuttle. [0003] At present, the installation of steel coal buckets is usually carried out by erecting scaffolding on the inner periphery. This construction method is slow in construction progress, high in cost, and cannot guarantee safety and quality. Due to the welding stress between buckets, it is difficult to guarantee t...

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Problems solved by technology

[0003] At present, the installation of steel coal buckets is usually carried out by erecting scaffolding on the inner periphery. This construction method is slow in construction progress, high in cost, and cannot guarantee safety and quality. Due to the welding stress between buckets, the construction quality is difficult to guarantee, so it is difficult to meet the construction requirements of large steel coal buckets by using the traditional method of erecting scaffolding to install steel coal buckets, and it will affect the construction period

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