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Lime kiln barrel assembling and welding method

A technology for lime kiln cylinders and cylinders, which is applied to welding equipment, welding equipment, arc welding equipment, etc., to achieve the effects of controlling welding deformation, small welding current, and improving work efficiency

Active Publication Date: 2013-11-27
CHINA NAT CHEM ENG THIRD CONSTR
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of existing welding lime kiln shells, and provide a simple and convenient lime kiln shell assembly welding method

Method used

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  • Lime kiln barrel assembling and welding method
  • Lime kiln barrel assembling and welding method

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Embodiment Construction

[0029] Such as figure 1 As shown, a lime kiln shell welding method adopts the following steps:

[0030] The lime kiln shell assembly welding method of the present invention adopts the following steps:

[0031] (a) Use a laser theodolite to measure the straightness of the first cylinder 1, the second cylinder 2... The circumference is aligned in the axial direction, and dial indicators 12 are respectively installed at symmetrical positions 180° apart on the outer circumference of the adjacent cylinder. Using a laser theodolite to measure straightness belongs to a conventional process method in the prior art;

[0032] (b) On the inner peripheral surfaces of the butted first cylinder body 1 and the second cylinder body 2 at a distance of 100mm-300mm from the weld seam 16, several pairs of matching centering adjustment fixtures 3 are evenly welded, adjacent The distance between the centering adjustment jigs 3 is 200-400mm, centering bolts 5 are installed in several pairs of matc...

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Abstract

The invention discloses a lime kiln barrel assembling and welding method which comprises the following steps: firstly, measuring straightness of a first barrel, a second barrel to a nth barrel through a laser theodolite, and arranging dial indicators on the outer circumferences of the adjacent barrels respectively; secondly, welding a plurality of matched centering adjusting clamps on the inner circumference surfaces of the first barrel and the second barrel which are butted together so as to make the seam distances of the first barrel and the second barrel identical; thirdly, uniformly welding a plurality of tongue-shaped pressing plates on the inner circumference surfaces of the first barrel and the second barrel so as to correspondingly adjust the roundness of the first barrel and the second barrel; fourthly, welding welded blocks on the inner surfaces of the first barrel and the second barrel between two adjacent centering adjusting clamps; fifthly, welding in a CO2 protection semi-automatic welding mode, and welding the welding seams among the second barrel to the nth barrel in the same mode. By virtue of the effective welding method, welding operators are greatly reduced, the cost is saved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a method for assembling and welding cylinders, in particular to a method for assembling and welding large-diameter lime kiln cylinders with a diameter of 2 meters to 6 meters. Background technique [0002] The traditional method of assembling and welding lime kiln cylinders is that workers use tools such as gantry cards, flat wedges, and sledgehammers to adjust the ellipticity and misalignment of the cylinders in the radial direction. This method is clumsy, consumes physical strength, has large adjustment accuracy errors, and takes a long time to adjust. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the existing welding lime kiln shell, and provide a simple and convenient lime kiln shell assembly welding method. [0004] In order to accomplish the purpose of the invention of the present invention, the present invention adopts the following technical solutions: [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/053B23K9/16
Inventor 徐建
Owner CHINA NAT CHEM ENG THIRD CONSTR
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