CN103512361B - Furnace brick patching method of oxygen enrichment top-blown copper metallurgical furnace - Google Patents
Furnace brick patching method of oxygen enrichment top-blown copper metallurgical furnace Download PDFInfo
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- CN103512361B CN103512361B CN201310418266.3A CN201310418266A CN103512361B CN 103512361 B CN103512361 B CN 103512361B CN 201310418266 A CN201310418266 A CN 201310418266A CN 103512361 B CN103512361 B CN 103512361B
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- brick
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- stove
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- furnace shell
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- 239000011449 brick Substances 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 17
- 239000001301 oxygen Substances 0.000 title claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 13
- 239000010949 copper Substances 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims description 13
- 238000005476 soldering Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a furnace brick patching method of an oxygen enrichment top-blown copper metallurgical furnace, and belongs to the technical field of metallurgical and smelting furnaces. According to the furnace brick patching method, a method that broken furnace bricks are patched outside the furnace, and a reinforcing rib plate is used for reinforcing and balancing is adopted. The furnace brick patching method includes the steps of firstly, observing a brick falling range inside the furnace through a material inlet, then determining the accurate brick falling position through temperature measurement outside the furnace, welding the reinforcing rib plate on the brick falling position of a furnace shell, cutting a section of the furnace shell along the inner side of the reinforcing rib plate, measuring the furnace brick thickness at the position of a cutting opening, determining the vertical range of furnace brick patching, carrying out upward construction in the center of the cutting opening from the datum plane to the vertex where patching is required, finally, adopting the method that disassembly is carried out while construction is carried out to carry out patching to the two sides until the whole region required to be patched is completely patched. The furnace brick patching method has the advantages of being simple, easy to achieve, simple in structure, convenient to assemble and operate, low in investment cost, safe, practical, capable of effectively improving the oxygen enrichment top-blown copper metallurgical furnace furnace-brick patching efficiency, capable of remarkably prolonging the service life of the oxygen enrichment top-blown copper metallurgical furnace and widely suitable for the oxygen enrichment top-blown copper metallurgical industry.
Description
Technical field:
This technology relates to a kind of oxygen-enriched top blowing copper metallurgical furnace stove brick method for repairing and mending, belongs to metallurgical smelting furnace technical field.
Background technology:
Up to now, the copper smelting-furnace of domestic employing oxygen-enriched top blowing, mainly contains the form of Isa furnace, Ausmelt furnace.Isa furnace furnace binding is primarily of outer steel construction furnace shell, and internal layer refractory brick composition, and furnace diameter and height dimension are comparatively large, in process of production, send into mixture of oxygen by spray gun, and conveyer belt input material, flue gas enters next procedure through top flue.During production, in-furnace temperature is higher, reaches 1200 DEG C, and in fusion process, furnace roof and top flue there will be slag-off phenomenon, and stove brick is subject to high temperature corrosion, slag clashes into, and high temperature fusibility erosion affects.If there is oven body part to fall brick phenomenon, usually adopt in the laggard stove of blowing out and carry out the replacing of stove brick and repairing.This kind of repairing method need to smelting furnace blowing out, and be cooled to normal temperature just can enter in stove to construct, and there is larger potential safety hazard, not only can cause that furnace outage time is long, economic benefit is low, also can cause larger construction intensity, whole efficiency needs to be improved further.My company has also carried out exploratory development in this respect, adopts and carries out mending new technology by replacing a damaged part and practice principle success of putting into production outside stove.
By literature search, the report identical with the present invention is had no both at home and abroad.
Summary of the invention:
The object of the invention is to the deficiency overcoming prior art, and a kind of oxygen-enriched top blowing copper metallurgical furnace stove brick method for repairing and mending is provided.
The present invention is the deterioration characteristic according to oxygen-enriched top blowing copper metallurgical furnace stove brick, adopts one to mend by replacing a damaged part damaged stove brick outside stove, and utilizes the method strengthened gusset and carry out reinforcing, balancing.Concrete steps are as follows:
A. observe by material inlet the scope that the interior stove brick (1) of body of heater (6) falls, then by the exact position of the outer thermometric determination broken parts of stove, the reinforcement gusset (5) of furnace shell (4) upper welding resistance to deformation at the place that then drops at stove brick;
B. strengthen in stove outer inside gusset, position piecemeal furnace shell (4) needing mend by replacing a damaged part being cut;
C. first piece cut after, removed by the stove brick (1) damaged, the scope that first time removes stove brick (1) is: be laterally not more than 2m, is longitudinally no more than 1m;
D. must mend by replacing a damaged part when suitable order stove brick (1) scaling loss exceedes 40% of new stove brick area; Must mend by replacing a damaged part when other three direction brick (1) scaling loss exceed 60% of new brick area;
E. remove stove brick downwards along first piece of furnace shell (4) cut, find the brick layer that lower furnace brick (1) scaling loss area is less than 40%, as the datum level building new brick;
F. by levelling for datum level brick layer, clean out, centrally new brick is built by laying bricks or stones in alignment top by the method for wet block, new brick masonry is to first time otch top, adopting according to top stove brick scaling loss area tears open while the method for building again, until find scaling loss area to be less than the brick layer of 60%, as the summit that this is mended by replacing a damaged part;
G. the method for repairing and mending of two wing furnace brick (1) scaling loss, with d to f step;
H. after the work of mending by replacing a damaged part completes, the excircle direction of excising at furnace shell (4) reinforces, whole furnace shell (4) circumference soldering cross reinforcing (2) and vertical strengthening ribs (3), improve the stable of furnace shell (4) and stress balance, make body of heater (6) at high temperature not produce distortion.Method simple practical involved in the present invention, the Work tool used, parts are market and buy material machining, non-standard fabrication and installation routinely.
The present invention has that method is simple, structure is simple, it is easy to operate to install, investment cost is low, safe and practical, the advantage that effectively can improve oxygen-enriched top blowing copper metallurgical furnace stove brick repairing efficiency, significantly improve the stove longevity, is widely used in oxygen-enriched top blowing metallurgy of copper industry.
Accompanying drawing illustrates:
Fig. 1 is with the main TV structure schematic diagram of oxygen-enriched top blowing metallurgical furnace furnace shell after the invention process.
Fig. 2 is with the oxygen-enriched top blowing metallurgical furnace furnace shell plan structure schematic diagram after the invention process.
Detailed description of the invention:
Below in conjunction with accompanying drawing, this new technology is further described, after the repairing of this new technology as shown in drawings.
A. observe by material inlet the scope that the interior stove brick (1) of body of heater (6) falls, then by the exact position of the outer thermometric determination broken parts of stove, the reinforcement gusset (5) of furnace shell (4) upper welding resistance to deformation at the place that then drops at stove brick;
B. strengthen in stove outer inside gusset, position piecemeal furnace shell (4) needing mend by replacing a damaged part being cut;
C. first piece cut after, removed by the stove brick (1) damaged, the scope that first time removes stove brick (1) is: be laterally not more than 2m, is longitudinally no more than 1m;
D. must mend by replacing a damaged part when suitable order stove brick (1) scaling loss exceedes 40% of new stove brick area; Must mend by replacing a damaged part when other three direction brick (1) scaling loss exceed 60% of new brick area;
E. for preventing top stove brick from collapsing, removing stove brick downwards along first piece of furnace shell (4) cut, finding the brick layer that lower furnace brick (1) scaling loss area is less than 40%, as the datum level building new brick;
F. by levelling for datum level brick layer, clean out, centrally new brick is built by laying bricks or stones in alignment top by the method for wet block, new brick masonry is to first time otch top, adopting according to top stove brick scaling loss area tears open while the method for building again, until find scaling loss area to be less than the brick layer of 60%, as the summit that this is mended by replacing a damaged part;
G. the method for repairing and mending of two wing furnace brick (1) scaling loss, with d to f step;
H. after the work of mending by replacing a damaged part completes, the excircle direction of excising at furnace shell (4) reinforces, whole furnace shell (4) circumference soldering cross reinforcing (2) and vertical strengthening ribs (3), improve the stable of furnace shell (4) and stress balance, make body of heater (6) at high temperature not produce distortion.
For strengthening the intensity of newly masonry, in the process of mending by replacing a damaged part, strengthen gusset to soldering stainless steel masonry stiffener in stove along furnace shell, length and new brick consistent size.
Practical application shows, the present invention meets production engineering specifications completely, is widely used in oxygen-enriched top blowing metallurgy industry.
Claims (1)
1. an oxygen-enriched top blowing copper metallurgical furnace stove brick method for repairing and mending, is characterized in that the step of this method for repairing and mending is as follows:
A. observe by material inlet the scope that the interior stove brick (1) of body of heater (6) falls, then by the exact position of the outer thermometric determination broken parts of stove, the reinforcement gusset (5) of furnace shell (4) upper welding resistance to deformation at the place that then drops at stove brick;
B. strengthen in stove outer inside gusset, position piecemeal furnace shell (4) needing mend by replacing a damaged part being cut;
C. first piece cut after, removed by the stove brick (1) damaged, the scope that first time removes stove brick (1) is: be laterally not more than 2m, is longitudinally no more than 1m;
D. must mend by replacing a damaged part when suitable order stove brick (1) scaling loss exceedes 40% of new stove brick area; Must mend by replacing a damaged part when other three direction brick (1) scaling loss exceed 60% of new brick area;
E. remove stove brick downwards along first piece of furnace shell (4) cut, find the brick layer that lower furnace brick (1) scaling loss area is less than 40%, as the datum level building new brick;
F. by levelling for datum level brick layer, clean out, centrally build new brick by laying bricks or stones in alignment top by the method for wet block, until first time otch top, then adopt according to top stove brick scaling loss area and tear open while the method for building, until find scaling loss area to be less than the brick layer of 60%, as the summit that this is mended by replacing a damaged part;
G. the method for repairing and mending of two wing furnace brick (1) scaling loss, with d to f step;
H. after the work of mending by replacing a damaged part completes, the excircle direction of excising at furnace shell (4) reinforces, whole furnace shell (4) circumference soldering cross reinforcing (2) and vertical strengthening ribs (3), improve the stable of furnace shell (4) and stress balance, make body of heater (6) at high temperature not produce distortion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418266.3A CN103512361B (en) | 2013-09-13 | 2013-09-13 | Furnace brick patching method of oxygen enrichment top-blown copper metallurgical furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418266.3A CN103512361B (en) | 2013-09-13 | 2013-09-13 | Furnace brick patching method of oxygen enrichment top-blown copper metallurgical furnace |
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| CN103512361A CN103512361A (en) | 2014-01-15 |
| CN103512361B true CN103512361B (en) | 2015-07-08 |
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| CN201310418266.3A Active CN103512361B (en) | 2013-09-13 | 2013-09-13 | Furnace brick patching method of oxygen enrichment top-blown copper metallurgical furnace |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105605924B (en) * | 2016-02-14 | 2017-10-24 | 楚雄滇中有色金属有限责任公司 | The method for repairing and mending of fixed anode copper metallurgical furnace bottom brick |
| CN116718015A (en) * | 2022-11-06 | 2023-09-08 | 安徽芜湖海螺建筑安装工程有限责任公司 | A method of repairing the refractory material at the cone portion of the cyclone |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141423A (en) * | 1996-01-26 | 1997-01-29 | 承德钢铁集团有限公司 | Method for repairing ratry kiln |
| CN1279267A (en) * | 1999-07-05 | 2001-01-10 | 川崎制铁株式会社 | Method for mending coke oven and device for bringing bricks into it |
| CN101509728A (en) * | 2009-03-27 | 2009-08-19 | 芜湖众鑫工程机械有限责任公司 | Internal maintenance and repair technique for cement kiln and maintenance and repair equipment thereof |
| CN201344729Y (en) * | 2009-01-20 | 2009-11-11 | 武汉钢铁集团精鼎工业炉有限责任公司 | Repaired structure for working lining at middle part of vertical vacuum refining furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000212624A (en) * | 1999-01-19 | 2000-08-02 | Kawasaki Steel Corp | Repair method for refractory lining of mixed iron cars |
| JP2000282129A (en) * | 1999-04-01 | 2000-10-10 | Nkk Corp | Brick structure, notch structure and fixing method of converter bottom |
| JP5347614B2 (en) * | 2009-03-19 | 2013-11-20 | Ｊｆｅスチール株式会社 | Coke oven hot repair method |
| JP2012072463A (en) * | 2010-09-29 | 2012-04-12 | Kyuchiku Ind Co Ltd | Facilities for arranging firebrick for converter furnace |
-
2013
- 2013-09-13 CN CN201310418266.3A patent/CN103512361B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141423A (en) * | 1996-01-26 | 1997-01-29 | 承德钢铁集团有限公司 | Method for repairing ratry kiln |
| CN1279267A (en) * | 1999-07-05 | 2001-01-10 | 川崎制铁株式会社 | Method for mending coke oven and device for bringing bricks into it |
| CN201344729Y (en) * | 2009-01-20 | 2009-11-11 | 武汉钢铁集团精鼎工业炉有限责任公司 | Repaired structure for working lining at middle part of vertical vacuum refining furnace |
| CN101509728A (en) * | 2009-03-27 | 2009-08-19 | 芜湖众鑫工程机械有限责任公司 | Internal maintenance and repair technique for cement kiln and maintenance and repair equipment thereof |
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| CN103512361A (en) | 2014-01-15 |
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