CN105127606A - Tuyere flange mounting method - Google Patents
Tuyere flange mounting method Download PDFInfo
- Publication number
- CN105127606A CN105127606A CN201510618767.5A CN201510618767A CN105127606A CN 105127606 A CN105127606 A CN 105127606A CN 201510618767 A CN201510618767 A CN 201510618767A CN 105127606 A CN105127606 A CN 105127606A
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- CN
- China
- Prior art keywords
- tuyere
- furnace shell
- flange
- welding
- tuyere flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention relates to a tuyere flange mounting method. The method comprises the following steps: S1, manufacturing a furnace shell at a tuyere zone block by block; S2, pre-assembling multiple furnace shell blocks; S3, drilling tuyere flange mounting holes in the furnace shell blocks; S4, mounting tuyere flanges in the tuyere flange mounting holes, adjusting the positions of the multiple tuyere flanges accurately by mounting an adjusting bracket, and controlling the mounting axes, elevations and levelness of the tuyere flanges; S5, annularly and symmetrically welding the tuyere flanges section by section; S6, disassembling the furnace shell after welding; S7, performing heat treatment on the furnace shell welded with the tuyere flanges; S8, performing sand-blasting coating on the furnace shell. The tuyere flange mounting method has the advantages as follows: the tuyere zone is mounted in a factory, construction conditions and the construction environment are good, the welding quality and the mounting accuracy of the tuyere flanges are guaranteed, the defects that a construction site is narrow and normal construction cannot be performed with a conventional method are overcome, the construction progress is accelerated, and process requirements are met.
Description
Technical field
The present invention relates to technical field of blast furnace shell construction, more particularly, relate to a kind of tuyere flange installation method.
Background technology
Air-supply arrangement is that can blast furnace run well and keep producing efficient key position, air port perforate and flange installation are tight and compact operations, if tuyere equipment installation quality is bad, air-flow would not be uniformly distributed in stove, can produce abnormal working of a furnace time serious and produce fault, and the precision that the perforate in air port and tuyere flange are installed directly affects the function of air-supply arrangement.
In prior art, tuyere flange is installed and is typically employed in job site furnace shell perforate installation, centering, aligning, welding.There is following problem in construction at the scene: 1. there is environmental influence welding quality.2. tuyere flange construction precision cannot meet 3. construction sites narrow and small time cannot build installation platform.4. Site Welding completes post growth annealing and cannot meet design requirement.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and improves tuyere flange installation quality, decrease the tuyere flange installation method of the workload of site operation simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of tuyere flange installation method, comprise the following steps:
S1, piecemeal make tuyere zone furnace shell;
S2, complete the assembled in advance of multiple piecemeal furnace shell;
S3, on each furnace shell, open the installing hole of tuyere flange;
S4, tuyere flange is arranged in installing hole, is come the position of the multiple tuyere flange of fine adjustment by mounting and adjusting support, the installation axis of control flange, absolute altitude, levelness;
S5, circular symmetric segmentation welding tuyere flange;
S6, welded after take furnace shell apart;
S7, the furnace shell being welded with tuyere flange to be heat-treated;
S8, sandblasting application is carried out to furnace shell.
In such scheme, before described step S5, also have following steps: the reinforcing support of erecting and welding furnace shell and flange reinforce baffle plate.
In such scheme, in described step S5, two symmetrical tuyere flanges are welded simultaneously.
In such scheme, in described step S5, single tuyere flange symmetry is divided into multistage, multistage is simultaneously symmetrical by the welding of same direction.
Implement tuyere flange installation method of the present invention, there is following beneficial effect:
Advantage of the present invention is that tuyere zone is installed in factory, and execution conditions and construction environment well, ensure that welding quality and the installation accuracy of tuyere flange.Overcome job site narrow field, according to a conventional method can not the defect of normal construction, construction speed is accelerated, meets technological requirement.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is tuyere flange adjusting pole schematic diagram;
Fig. 2 is that tuyere zone furnace shell reinforces support schematic diagram;
Fig. 3 is the schematic diagram of tuyere flange reinforcement of weld baffle plate;
Fig. 4 is that A in Fig. 3 is to enlarged drawing;
Fig. 5 is tuyere flange annular segments welding schematic diagram;
Fig. 6 is annealing process figure.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in figs 1 to 6, tuyere flange installation method of the present invention comprises the following steps:
S1, piecemeal make tuyere zone furnace shell 1, and the furnace shell 1 in the present embodiment has four pieces.
S2, complete the assembled in advance of multiple piecemeal furnace shell 1, and fixed by jockeys such as dismountable snap closes.
S3, on each furnace shell 1, open the installing hole of tuyere flange 2.
First tuyere flange 2 is filled among perforate after S4, perforate, then mounting and adjusting support 3, as shown in Figure 1.Adjusting pole 3 is the accurate adjustments in order to carry out tuyere flange 2, the installation axis of control flange 2, absolute altitude, levelness, and counterpart flange 2 bracing wire after adjusting of being more convenient for, hanging wire pendant check.
S5, circular symmetric segmentation welding tuyere flange 2.The reinforcing of first erecting and welding furnace shell 1 support 4 and flange 2 is also needed to reinforce baffle plate 5 before above-mentioned steps S5.Furnace shell 1 reinforces the material selection that support 4 and flange 2 reinforce baffle plate 5, and should select according to the making radian of last furnace shell 1 and furnace shell 1 steel plate thickness, I-steel specification is selected and should be less than I16.Ensure to have reinforced firm supporting reliable.As shown in Figure 2.
The welding of tuyere flange 2 must be ensured the quality of products, and two will reduce the deflection in welding process, and both all require rational welding procedure and the higher technical merit of welder.The annular segments adopted is symmetrically welded.Anti-deformation measure: in the penetration process of welding, high temperature can change the texture of mother metal, in addition furnace shell 1 slab, cooling after high temperature causes distortion owing to being heated uneven, therefore, energy uniform decrease in temperature after preventing the interlayer temperature mainly controlled well in welding process of distortion and making welding, being welded with deformed plate in the direction of welding, is the effective ways preventing distortion by external force.As shown in Figure 3, Figure 4.Air port positioning welding: first single-sided welding 8 points after the centering of each air port, each length is about 50mm, carries out the location before tuyere flange 2 welding.The welding of tuyere flange 2 adopts symmetrical segmentation to weld, as Fig. 5.1st section and the 3rd section by two welders simultaneously welding, welding direction is clockwise.After a, c section is soldered, the welding simultaneously of b, d section.Be 20 according to air port number, first require that two symmetrical flanges 2 first weld, namely four flanges 2 are welded simultaneously, 3 layers, large groove side is all welded in each air port, afterwards to little groove side gouge back chipping and light of polishing, to 3 layers, little groove side, then full to the weldering of large groove side.Often weld one deck light of must first polishing and continue welding again, and check the defect in welding process and repair, do not allow intermittent weld, should be soldered continuously every bar weld seam during welding, each air port arranges two welders shunting, layering welding simultaneously.As shown in Figure 5.
S6, flange 2 have welded the fractionation carrying out pre-splicing shove charge shell 1 after the assay was approved, take into four parts apart.
S7, because of thickness of slab and weld seam is many and concentrated, the residual stress of postwelding is inevitable very large, and in order to eliminate stress, postwelding need carry out integrally annealed process, as shown in Figure 6.
S8, the furnace shell 1 of annealed process consign again to make factory carry out sandblasting application, then dispatch from the factory haul obtain assembled and lifting work to job site.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (4)
1. a tuyere flange installation method, is characterized in that, comprises the following steps:
S1, piecemeal make tuyere zone furnace shell;
S2, complete the assembled in advance of multiple piecemeal furnace shell;
S3, on each furnace shell, open the installing hole of tuyere flange;
S4, tuyere flange is arranged in installing hole, is come the position of the multiple tuyere flange of fine adjustment by mounting and adjusting support, the installation axis of control flange, absolute altitude, levelness;
S5, circular symmetric segmentation welding tuyere flange;
S6, welded after take furnace shell apart;
S7, the furnace shell being welded with tuyere flange to be heat-treated;
S8, sandblasting application is carried out to furnace shell.
2. tuyere flange installation method according to claim 1, is characterized in that, also has following steps before described step S5: the reinforcing support of erecting and welding furnace shell and flange reinforce baffle plate.
3. tuyere flange installation method according to claim 1, is characterized in that, in described step S5, welds two symmetrical tuyere flanges simultaneously.
4. tuyere flange installation method according to claim 1, is characterized in that, in described step S5, single tuyere flange symmetry is divided into multistage, and multistage is simultaneously symmetrical by the welding of same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618767.5A CN105127606A (en) | 2015-09-24 | 2015-09-24 | Tuyere flange mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618767.5A CN105127606A (en) | 2015-09-24 | 2015-09-24 | Tuyere flange mounting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105127606A true CN105127606A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510618767.5A Pending CN105127606A (en) | 2015-09-24 | 2015-09-24 | Tuyere flange mounting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105127606A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583501A (en) * | 2016-02-20 | 2016-05-18 | 首钢水城钢铁(集团)赛德建设有限公司 | Method for assembly welding of tuyere, taphole frame and furnace body for blast furnace shell manufacturing |
| CN111360374A (en) * | 2020-03-26 | 2020-07-03 | 中国十七冶集团有限公司 | Large-scale blast furnace tuyere flange welding method |
| CN113579421A (en) * | 2021-06-28 | 2021-11-02 | 沪东中华造船(集团)有限公司 | Single-groove welding installation method for ship outfitting piece |
| CN115446426A (en) * | 2022-10-14 | 2022-12-09 | 河北冶金建设集团有限公司 | Off-line installation method for large-scale blast furnace tuyere flange |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501067A (en) * | 2011-11-07 | 2012-06-20 | 中国一冶集团有限公司 | Method for splicing and installing coke dry quenching furnace shells |
| KR20120124968A (en) * | 2011-05-06 | 2012-11-14 | 현대중공업 주식회사 | A flange welding method of ocean block |
| CN204080003U (en) * | 2014-05-24 | 2015-01-07 | 天津二十冶建设有限公司 | A kind of to the orientable tuyere flange of blast furnace |
| CN104439740A (en) * | 2014-11-12 | 2015-03-25 | 中国十九冶集团有限公司南京分公司 | Welding method for furnace top flange of blast furnace |
-
2015
- 2015-09-24 CN CN201510618767.5A patent/CN105127606A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120124968A (en) * | 2011-05-06 | 2012-11-14 | 현대중공업 주식회사 | A flange welding method of ocean block |
| CN102501067A (en) * | 2011-11-07 | 2012-06-20 | 中国一冶集团有限公司 | Method for splicing and installing coke dry quenching furnace shells |
| CN204080003U (en) * | 2014-05-24 | 2015-01-07 | 天津二十冶建设有限公司 | A kind of to the orientable tuyere flange of blast furnace |
| CN104439740A (en) * | 2014-11-12 | 2015-03-25 | 中国十九冶集团有限公司南京分公司 | Welding method for furnace top flange of blast furnace |
Non-Patent Citations (1)
| Title |
|---|
| 苑志波等: "大型高炉风口工厂化制造技术", 《施工技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583501A (en) * | 2016-02-20 | 2016-05-18 | 首钢水城钢铁(集团)赛德建设有限公司 | Method for assembly welding of tuyere, taphole frame and furnace body for blast furnace shell manufacturing |
| CN111360374A (en) * | 2020-03-26 | 2020-07-03 | 中国十七冶集团有限公司 | Large-scale blast furnace tuyere flange welding method |
| CN113579421A (en) * | 2021-06-28 | 2021-11-02 | 沪东中华造船(集团)有限公司 | Single-groove welding installation method for ship outfitting piece |
| CN115446426A (en) * | 2022-10-14 | 2022-12-09 | 河北冶金建设集团有限公司 | Off-line installation method for large-scale blast furnace tuyere flange |
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Application publication date: 20151209 |