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Device and method for correcting spatially-downwarped steel beam

A steel beam, space technology

Active Publication Date: 2011-01-12
CHINA MCC 2 GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no special or general-purpose equipment for in-situ correction of the deflection deformation of furnace bottom steel beams on the market, nor is there any method for in-situ correction of the deflection deformation of furnace bottom steel beams

Method used

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  • Device and method for correcting spatially-downwarped steel beam
  • Device and method for correcting spatially-downwarped steel beam
  • Device and method for correcting spatially-downwarped steel beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] Example: Correction of downward deflection of group steel beams at the bottom of a gas vertical furnace.

[0013] Referring to the accompanying drawings, the basic shape of the steel beam 9 to be corrected is an I-shaped, the total height is 600mm, the upper and lower flanges are 200mm wide, 30mm thick, and 20mm thick; It includes a box beam 1, the box beam 1 is all made of 20mm steel plate, and a pair of hanging arm groups 2 with rectangular holes 3 on the upper part are welded to both ends of the box beam 1. The correction method is: use a hoisting tool to hang the box beam 1 directly below the steel beam 9 to be corrected, lift the box beam 1 up, and insert the hanging arm group 2 on the box beam 1 into the steel beam 9 to be corrected. On both sides, clamp the steel beam 9 between the two hanging arms of each hanging arm group, insert hanging pins 4 into the rectangular holes 3 of the two hanging arms of each hanging arm group, and hang the box beam 1 Below the ste...

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Abstract

The invention relates to a device and a method for correcting a spatially-downwarped steel beam. The correcting device comprises a box beam and is characterized in that both ends of the box beam are respectively provided with a group of paired suspension arm groups, wherein the upper part of each suspension arm group is provided with a rectangular orifice. The correcting method comprises the following steps: suspending the box beam right below the steel beam to be corrected, placing a hydraulic jack on the box beam, using an electric hydraulic oil pump to feed oil to the hydraulic jack, enabling the hydraulic jack to extend upwards and jack the downwarped part of the steel beam to exert an upward pressure on the steel beam, and repeatedly jacking and measuring until the bending value of the steel beam meets the correcting requirements. By using the steel beam as the support, suspending the box beam on the steel beam and using the hydraulic jack to jack the downwarped part so as to achieve the correcting purpose, the invention avoids the problems of high cost and long construction period caused by replacement of the steel beam.

Description

technical field [0001] The invention relates to a correcting device and a correcting method for a steel beam with a lower deflection in a space, which is used for in-situ correction of a group of steel beams at the bottom of the furnace in the overhaul project of a large-scale furnace such as a gas vertical furnace with serious downward deflection but not easy to dismantle and replace, belonging to the space The technical field of lower deflection steel beam correction. Background technique [0002] In traditional overhaul projects, some seriously deformed components are replaced. However, in some cases, due to the constraints of the construction period, cost and other factors of the project, it is necessary to take corrective measures. [0003] The gas vertical furnace is an industrial furnace specially used for dry distillation of coal to obtain gas. Its main product is gas, and its by-products are mainly coke and by-products generated during gas purification. Its main st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/14
Inventor 王永善黄金
Owner CHINA MCC 2 GRP CO LTD
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