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Construction technique for hoisting steel made coal hopper on-site

A construction process and technology for steel coal hoppers, which are applied to lifting devices, hoisting devices, construction materials processing and other directions, can solve the problems of high cost, long construction period, delay in civil construction period, etc., and achieve low cost and short installation and construction period. , The effect of simple and easy construction process

Inactive Publication Date: 2008-02-06
NO 3 POWER CONSTR ENG CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This installation and construction method requires that the construction of the civil engineering of the factory building reach a height suitable for the installation of the steel coal scuttle, and the construction of the main structure must be stopped, and all scaffolding that affects the hoisting channel of the steel coal scuttle and the seating area must be removed, which will not only cause delays in the construction period of the civil works Delay, and the hoisting requires double-machine hoisting to ensure the vertical hoisting of the components. According to the construction experience of various power plants, without being affected by other factors, the shortest construction period for hoisting is only 35 days, which is a long construction period and high cost.

Method used

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  • Construction technique for hoisting steel made coal hopper on-site
  • Construction technique for hoisting steel made coal hopper on-site
  • Construction technique for hoisting steel made coal hopper on-site

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Embodiment

[0009] This embodiment is a specific implementation plan for newly-built 2×300MW units in a thermal power plant and supporting steel coal buckets. Referring to the accompanying drawings, two parallel cantilever tracks 4 made of 32# I-steel are fixed on the lower edge of the roof steel girder on the 22-meter layer of the C-D axis between the deoxygenated coal bunkers of the power plant. The cantilever track The cantilever of 4 stretches out of the factory building, and is fixed with the upper factory building by drag cables 2, and a 10-ton electric hoist 1 with a lifting height of 30 meters is suspended on each track 4; A pair of trolley walking track 6, on which a trolley 5 can be horizontally moved along the track 6 is set; the steel coal hopper 7 has a single weight of 47 tons, and is made in 5 sections during production, and is made by the pallet truck according to the construction plan According to the determined installation procedure, each section is transported to the u...

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Abstract

A construction technology for hoisting and installing the coal bunker composed of several segments made of steel includes such steps as arranging two parallel cantilever tracks under a steel beam, laying down a track on the ground, hanging an electric pulley-type lifter to each cantilever track, manufacturing each segment of coal bunker, using a cart to transport it along the ground track to the installation position, lifting said segments one by one while welding, and installing the base of coal bunker.

Description

technical field [0001] The invention relates to a construction technique for hoisting a steel coal scuttle into place. Background technique [0002] The steel coal hopper is an essential device for thermal power plants. Its shape is: the upper part is a combination of cylindrical silos and the lower part is conical silos. The steel coal hopper is usually installed on the C-D shaft between the deoxygenated coal bunkers of the power plant. The traditional installation and construction method is to use a crane to lift it. For the hoisting capacity of the hoisting equipment, the steel coal scuttles are made in sections. When the civil engineering construction of the plant reaches a height suitable for the installation of steel coal scuttles, the segmented steel coal scuttles are hoisted and stacked in sequence by the crane and placed in the corresponding positions for temporary fixation. , After the C-D shaft frame between the deoxidized coal bunkers is capped, the segmented st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/35E04G23/00E04G21/14B66F19/00
Inventor 齐朝华王玉玺祁进荣
Owner NO 3 POWER CONSTR ENG CO LTD
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