CN101762162B - Off-line positioning and welding method of annular furnace anchoring element - Google Patents

Off-line positioning and welding method of annular furnace anchoring element Download PDF

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Publication number
CN101762162B
CN101762162B CN2008102037236A CN200810203723A CN101762162B CN 101762162 B CN101762162 B CN 101762162B CN 2008102037236 A CN2008102037236 A CN 2008102037236A CN 200810203723 A CN200810203723 A CN 200810203723A CN 101762162 B CN101762162 B CN 101762162B
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furnace shell
unwrapping wire
anchoring piece
plate
line
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CN2008102037236A
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CN101762162A (en
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陈广忠
陈红武
王祥
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MCC5 Group Shanghai Corp Ltd
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MCC5 Group Shanghai Corp Ltd
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Abstract

The invention relates to the field of construction of cold rolling industrial furnaces, in particular to an off-line positioning and welding method of an annular furnace anchoring element which comprises the following seven steps: determining the line releasing reference of the anchoring element, releasing lines, determining the positioning point of the anchoring element, spot-welding the anchoring element, welding around the root of the anchoring element, rechecking, and installing a furnace shell plate. The invention is characterized in that the central connection line (14) of an upper combustion nozzle (11) and a lower combustion nozzle (12) is used as a reference line in the vertical direction of the wall plate (1) of the furnace shell plate; a bottom side line (15) is used as a reference line in the horizontal direction of the wall plate (1) of the furnace shell plate; the central connection line (24) of an outside installing hole (21) and an inside installing hole (22) is used as a reference line in the radial direction of the top plate (2) of the furnace shell plate; and an internal side line (25) is used as a reference line in the circumferential direction of the top plate (2) of the furnace shell plate. By effectively controlling the off-line positioning accuracy of the anchoring element and the installation accuracy of the furnace shell plate, the invention improves the efficiency of construction.

Description

The off-line positioning and welding method of annular furnace anchoring element
Technical field
The present invention relates to cold rolling industrial furnace and build construction field, be specially a kind of off-line positioning and welding method of annular furnace anchoring element.
Background technology
Annular furnace is the common device of smelting industry, generally is each single-unit furnace coverboard to be installed to connect into annular furnace shell earlier, and weld anchor firmware on furnace shell then, anchoring piece is distributed in furnace wall and furnace roof.For the welding method of anchoring piece, construction method commonly used is unwrapping wire and welding again after furnace shell all installs, and unwrapping wire is more accurate like this.But shortcoming is: in round and high body of heater unwrapping wire, install, weld anchor firmware operation difficulty is big, particularly the furnace roof anchoring piece be welded as the weldering of facing upward, welder's operating difficulties, weldquality are difficult for guaranteeing that welding efficiency is very low.
Summary of the invention
In order to overcome the defective of prior art, solving annular furnace furnace shell plate installs the unwrapping wire of rear anchor piece, installs, welds difficult problem, a kind of easy to operate, construction method that welding quality is high is provided, the invention discloses a kind of off-line positioning and welding method of annular furnace anchoring element.
The present invention reaches goal of the invention by following technical solution:
A kind of off-line positioning and welding method of annular furnace anchoring element, comprise definite anchoring piece unwrapping wire benchmark, unwrapping wire, determine these seven steps of anchoring piece anchor point, spot welding anchoring piece, weld all around anchoring piece root, check and installation furnace shell plate, the characteristics of each step are as described below in the operation:
Determine anchoring piece unwrapping wire benchmark: comprise the anchoring piece unwrapping wire benchmark determined on the furnace shell wooden partition plate and the anchoring piece unwrapping wire benchmark two parts on definite furnace shell plate top board, when determining the anchoring piece unwrapping wire benchmark on the furnace shell wooden partition plate, furnace shell wooden partition plate is lain against ground, the line of centres of above burner of furnace shell wooden partition plate vertical direction and following burner is a datum line, furnace shell wooden partition plate level direction is a datum line with the sideline, bottom, when determining the anchoring piece unwrapping wire benchmark on the furnace shell plate top board, furnace shell plate top board is a datum line with the line of centres of outside installing hole and inner edge installing hole radially, and furnace shell plate top board circumferencial direction is a datum line with the inner ring sideline.
During unwrapping wire, carry out respectively according to determined anchoring piece unwrapping wire benchmark, furnace shell wooden partition plate vertical direction unwrapping wire is all parallel with the line of centres of following burner with last burner, furnace shell wooden partition plate level direction unwrapping wire all with the bottom sides line parallel, furnace shell plate top board radially unwrapping wire is all parallel with the line of centres of inner edge installing hole with the outside installing hole, and furnace shell plate top board circumferencial direction unwrapping wire is all parallel with the inner ring sideline;
When determining the anchoring piece anchor point, according to fixed anchoring piece unwrapping wire benchmark, on the furnace shell plate, mark the anchor point of each anchoring piece, the intersection point of horizontal unwrapping wire and vertical unwrapping wire is the anchoring piece anchor point on the furnace shell wooden partition plate, on the furnace shell plate top board radially the intersection point of unwrapping wire and circumferencial direction unwrapping wire be the anchoring piece anchor point;
The spot welding anchoring piece: anchoring piece is uprightly aimed at anchor point on the furnace shell plate, spot welding a bit, the angle of proofreading and correct then between anchoring piece and the furnace shell plate is the right angle;
Check: the spacing dimension of adjacent anchor firmware is limited to 2mm on the deviation.
The furnace shell plate is installed: the midline position at furnace shell wooden partition plate and furnace shell plate top board is marked, and the furnace shell plate is installed is comprised installation furnace shell wooden partition plate and furnace shell plate top board is installed that the center line of each furnace shell plate is all aligned with each other during installation.
The obtained beneficial effect of the present invention is: solved the furnace shell plate and the unwrapping wire of rear anchor piece has been installed, is installed, weld difficult problem.By effective control to the off-line positioning accuracy and the furnace shell plate installation accuracy of anchoring piece, after all furnace shell plate installations, to the requirement of anchoring piece construction quality, the efficient that this method produces was 3 times of online location welding efficiency when the location dimension of each anchoring piece, weldquality all met annular furnace refractory material (ceramic fibre module) installation on inspection.
Description of drawings
Fig. 1 is the structural representation of furnace shell wooden partition plate;
Fig. 2 is the structural representation of furnace shell plate top board;
Structural representation when Fig. 3 is the annular furnace installation.
The specific embodiment
Below further specify the present invention by specific embodiment.
Embodiment 1
Certain high-temperature ring annealing furnace, burner hearth central diameter 46.4m, the high 4000mm of wallboard, the wide 6350mm of top board, annular furnace wallboard and top board have 177, and anchoring piece is 21594 on the furnace shell.
Job step comprises to be determined anchoring piece unwrapping wire benchmark, unwrapping wire, determines anchoring piece anchor point, spot welding anchoring piece, weld all around anchoring piece root, check and this seven step of soldering furnace coverboard,
(1) determines anchoring piece unwrapping wire benchmark: comprise the anchoring piece unwrapping wire benchmark determined on the furnace shell wooden partition plate 1 and the anchoring piece unwrapping wire benchmark two parts on definite furnace shell plate top board 2, as shown in Figure 1, when determining the anchoring piece unwrapping wire benchmark on the furnace shell wooden partition plate 1, furnace shell wooden partition plate 1 is lain against ground, the line of centres 14 of above burner 11 of furnace shell wooden partition plate 1 vertical direction and following burner 12 is a datum line, and furnace shell wooden partition plate 1 horizontal direction is a datum line with sideline, bottom 15; As shown in Figure 2, when determining the anchoring piece unwrapping wire benchmark on the furnace shell plate top board 2, furnace shell plate top board 2 is a datum line with the line of centres 24 of outside installing hole 21 and inner edge installing hole 22 radially, and furnace shell plate top board 2 circumferencial directions are datum line with inner ring sideline 25.
(2) unwrapping wire: carry out respectively according to determined anchoring piece unwrapping wire benchmark, furnace shell wooden partition plate 1 vertical direction unwrapping wire is all parallel with the line of centres 14 of last burner 11 and following burner 12, furnace shell wooden partition plate 1 horizontal direction unwrapping wire is all parallel with sideline, bottom 15, as the indicated direction of arrow among Fig. 1.Furnace shell plate top board 2 radially unwrapping wire is all parallel with the line of centres 24 of outside installing hole 21 and inner edge installing hole 22, and furnace shell plate top board 2 circumferencial direction unwrapping wire are all parallel with inner ring sideline 25, as the indicated direction of arrow among Fig. 2.
(3) determine the anchoring piece anchor point: according to fixed anchoring piece unwrapping wire benchmark, on the furnace shell plate, mark the anchor point of each anchoring piece, as shown in Figure 1, the intersection point of institute's unwrapping wire is anchoring piece anchor point 13 on the furnace shell wooden partition plate 1, as shown in Figure 2, the intersection point of institute's unwrapping wire is anchoring piece anchor point 23 on the furnace shell plate top board 2;
(4) spot welding anchoring piece: anchoring piece is uprightly aimed at anchor point on the furnace shell plate, spot welding a bit, the angle of proofreading and correct then between anchoring piece and the furnace shell plate is the right angle.
(5) the some postwelding is implemented weld all around to the anchoring piece root, and it is fixed on the furnace shell plate.
(6) check: the spacing dimension of adjacent anchor firmware is limited to 2mm on the deviation.
(7) the furnace shell plate is installed: as shown in Figure 3,,, on inner ring girder steel 3, make center line markings 31, on outer ring girder steel 4, make center line markings 41 at the midline position of furnace shell plate top board 2 line 26 of marking at the midline position of furnace shell wooden partition plate 1 line 16 of marking.When furnace shell wooden partition plate 1 and furnace shell plate top board 2 were installed, the center line of each furnace shell plate was all aligned with each other.The installation accuracy of every single-piece furnace shell plate is: disalignment permissible variation 3mm, absolute altitude permissible variation ± 3mm; The installation accuracy of adjacent wallboard or top board is: centre-to-centre spacing permissible variation ± 3mm, the discrepancy in elevation allows 3mm.

Claims (2)

1. the off-line positioning and welding method of an annular furnace anchoring element comprises definite anchoring piece unwrapping wire benchmark, unwrapping wire, determines these seven steps of anchoring piece anchor point, spot welding anchoring piece, weld all around anchoring piece root, check and installation furnace shell plate, it is characterized in that:
When determining anchoring piece unwrapping wire benchmark, comprise the anchoring piece unwrapping wire benchmark determined on the furnace shell wooden partition plate (1) and the anchoring piece unwrapping wire benchmark two parts on definite furnace shell plate top board (2), when determining the anchoring piece unwrapping wire benchmark on the furnace shell wooden partition plate (1), furnace shell wooden partition plate (1) is lain against ground, the line of centres (14) of above burner of furnace shell wooden partition plate (1) vertical direction (11) and following burner (12) is a datum line, furnace shell wooden partition plate (1) horizontal direction is a datum line with sideline, bottom (15), when determining the anchoring piece unwrapping wire benchmark on the furnace shell plate top board (2), furnace shell plate top board (2) is a datum line with the line of centres (24) of outside installing hole (21) and inner edge installing hole (22) radially, and furnace shell plate top board (2) circumferencial direction is a datum line with inner ring sideline (25);
During unwrapping wire, carry out respectively according to determined anchoring piece unwrapping wire benchmark, furnace shell wooden partition plate (1) vertical direction unwrapping wire is all parallel with the line of centres (14) of last burner (11) and following burner (12), furnace shell wooden partition plate (1) horizontal direction unwrapping wire is all parallel with sideline, bottom (15), furnace shell plate top board (2) radially unwrapping wire is all parallel with the line of centres (24) of outside installing hole (21) and inner edge installing hole (22), and furnace shell plate top board (2) circumferencial direction unwrapping wire is all parallel with inner ring sideline (25);
When determining the anchoring piece anchor point, according to fixed anchoring piece unwrapping wire benchmark, on the furnace shell plate, mark the anchor point of each anchoring piece, the intersection point that furnace shell wooden partition plate (1) is gone up horizontal unwrapping wire and vertical unwrapping wire is anchoring piece anchor point (13), on the furnace shell plate top board (2) radially the intersection point of unwrapping wire and circumferencial direction unwrapping wire be anchoring piece anchor point (23);
During the spot welding anchoring piece, anchoring piece is uprightly aimed at anchor point on the furnace shell plate, spot welding a bit, the angle of proofreading and correct then between anchoring piece and the furnace shell plate is the right angle;
During check, the spacing dimension of adjacent anchor firmware is limited to 2mm on the deviation.
2. the off-line positioning and welding method of annular furnace anchoring element as claimed in claim 1, it is characterized in that: when the furnace shell plate is installed, midline position at furnace shell wooden partition plate (1) and furnace shell plate top board (2) is marked, the furnace shell plate is installed is comprised installation furnace shell wooden partition plate (1) and furnace shell plate top board (2) is installed that the midline position of each furnace shell plate is all aligned with each other during installation.
CN2008102037236A 2008-11-28 2008-11-28 Off-line positioning and welding method of annular furnace anchoring element Active CN101762162B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103134324B (en) * 2011-11-25 2014-11-05 上海宝钢工业技术服务有限公司 Stringing method for annular heating furnace bottom brick building

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1261638A (en) * 1999-12-30 2000-08-02 王康强 Mounting method for high-rise building steel structure
CN101109573A (en) * 2007-07-20 2008-01-23 中冶京唐建设有限公司 Technique for inner lining construction with unopened hot-blast stove furnace jacket
CN101186003A (en) * 2007-11-26 2008-05-28 中铁大桥局集团第七工程有限公司 Firstly hole drilling construction method in girder steel hole-drilling
CN101261083A (en) * 2007-12-18 2008-09-10 李朝侠 Large-sized industrial kiln lining anchoring piece and method of use thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1261638A (en) * 1999-12-30 2000-08-02 王康强 Mounting method for high-rise building steel structure
CN101109573A (en) * 2007-07-20 2008-01-23 中冶京唐建设有限公司 Technique for inner lining construction with unopened hot-blast stove furnace jacket
CN101186003A (en) * 2007-11-26 2008-05-28 中铁大桥局集团第七工程有限公司 Firstly hole drilling construction method in girder steel hole-drilling
CN101261083A (en) * 2007-12-18 2008-09-10 李朝侠 Large-sized industrial kiln lining anchoring piece and method of use thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2003-311402A 2003.11.05

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