CN101736105B - Method for perforating and positioning engineering air port and air supply device of blast furnace - Google Patents
Method for perforating and positioning engineering air port and air supply device of blast furnace Download PDFInfo
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- CN101736105B CN101736105B CN2008101531341A CN200810153134A CN101736105B CN 101736105 B CN101736105 B CN 101736105B CN 2008101531341 A CN2008101531341 A CN 2008101531341A CN 200810153134 A CN200810153134 A CN 200810153134A CN 101736105 B CN101736105 B CN 101736105B
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Abstract
The invention relates to a method for perforating and positioning an engineering air port and an air supply device of a blast furnace, which is carried out according to the following steps: (1) reinforcing plates are installed on single-piece furnace casings, a saddle plate is arranged between the two adjacent single-piece furnace casings after a plurality of single-piece furnace casings are spliced, and a reinforcing component is installed between the two opposite single-piece furnace casings; (2) the furnace casings at the section of the air port are hung, and the inspection of the elevation, the levelness, the ellipticity and the staggered edges of the grooves of circular seams and the inspection of the centrad of the furnace casings are sequentially carried out; then, the circular seams of the furnace casings are welded clockwise, and finally, the inspection of the internal quality of the circular seams is carried out; (3) the furnace casings of an upper zone are installed and positioned, and the centers of the furnace casings are positioned; and (4) the air port is perforated and positioned. The invention has the advantages that the furnace casings have favorable stability, the accuracy of the opening and the positioning of the air port can be ensured, the positioning is more accurate, and the manpower is saved.
Description
Technical field:
The present invention relates to the mechanical workout boring method, particularly a kind of blast furnace engineering air port and air-supply arrangement perforate localization method.
Background technology:
At present, along with the development of ironmaking technology, newly-built large blast furnace engineering plays huge pushing effect to the Economic development of metallurgy industry.Therefore, during newly-built or overhaul blast furnace, the on-the-spot perforate of last furnace shell structure is had higher requirement.And in the metallurgical construction industry, the perforate bearing accuracy in large-scale iron-smelting blast furnace engineering air port cannot say for sure card, some make with installation process in progressive error be difficult for eliminating, this brings bigger influence to go into operation back stove operation and the coefficient that taps a blast furnace of blast furnace.In the at present conventional at home blast-furnace tuyere locating holes construction, still adopt comparatively the primary halving method to construct, cause air port systems center and stove center to intersect at a point or deviation bigger.
Summary of the invention:
The object of the invention just is to overcome the deficiency that exists in the above-mentioned prior art, and a kind of blast furnace engineering air port and air-supply arrangement perforate localization method are provided, and this method accurate positioning, speed are fast, and practices thrift manpower.
Technical scheme of the present invention is: a kind of blast furnace engineering air port and air-supply arrangement perforate localization method; It is characterized in that: carry out according to the following step: 1, on the monolithic furnace shell, gusset plate is installed; After the assembly unit of some monolithic furnace shells; Between two adjacent monolithic furnace shells, saddle plate is housed, and between two relative monolithic furnace shells, reinforcing member is installed; 2, carry out the lifting of air port section furnace shell, and carry out the inspection of absolute altitude, levelness, ovality, the inspection of circumferential weld groove misalignment and furnace shell centrad successively; Then the furnace shell ring is met and carry out welded clockwise, encircle at last and meet the internal soundness inspection; 3, will go up band furnace shell installation in position, and carry out the furnace shell positioned centrally; 4, carry out the perforate location in air port; After at first adopting precision level and transit instrument to get ready the horizontal center line in air port and vertical center line it is labeled on the furnace shell inwall; Check then whether its horizontal center line conforms to the drawing design with vertical center line; Confirm just can carry out perforate after errorless; Because perforate locating accuracy in air port directly influences the installation and inner precision of building by laying bricks or stones of air port system, so the perforate location must guarantee that the absolute altitude in each air port and medullary ray intersect at a point.
Advantage of the present invention is: 1, the present invention is through the fabrication and installation precision of strict control furnace shell; Make furnace shell have satisfactory stability property; And reduce furnace shell welding distortion error through reasonable arrangement furnace shell welding sequence, and then increased the control accuracy of furnace shell welding.Therefore, can guarantee the bearing accuracy that the air port system installs effectively.2, the present invention can guarantee that the absolute altitude in each air port and medullary ray intersect at a point, and therefore can further guarantee air port perforate locating accuracy.3, the present invention adopts accurate spirit-leveling instrument and transit instrument, therefore also can guarantee air port perforate locating accuracy, makes the location more accurate, and has practiced thrift manpower.
Description of drawings:
Fig. 1 is a process flow sheet of the present invention.
Fig. 2 is vertical center line location, an air port synoptic diagram.
Fig. 3 is inlet horizontal medullary ray (absolute altitude) location synoptic diagram.
Fig. 4 is back, location, an air port synoptic diagram,
Fig. 5 monolithic furnace shell is reinforced synoptic diagram.
Fig. 6 reinforces synoptic diagram before the furnace shell welding.
Fig. 7 is the A-A sectional view of Fig. 6.
Fig. 8 is furnace shell girth welding sequence control principle figure.
Fig. 9 is furnace shell band and band assembly unit inspection synoptic diagram.
Embodiment:
As shown in the figure: a kind of blast furnace engineering air port and air-supply arrangement perforate localization method; Carry out according to the following step: 1, gusset plate 2 is installed on monolithic furnace shell 1; After the assembly unit of some monolithic furnace shells; Between two adjacent monolithic furnace shells, saddle plate 3 is housed, and between two relative monolithic furnace shells, reinforcing member 4 is installed; 2, carry out the lifting of air port section furnace shell, and carry out the inspection of absolute altitude, levelness, ovality, the inspection of circumferential weld groove misalignment and furnace shell centrad successively; Then the furnace shell ring is met and carry out welded clockwise, encircle at last and meet the internal soundness inspection; 3, will go up band furnace shell installation in position, and carry out the furnace shell positioned centrally; 4, carry out the perforate location (like Fig. 2,3, shown in 4) in air port; After at first adopting precision level 5 and transit instrument 6 to get ready the horizontal center line in air port and vertical center line it is labeled on furnace shell 7 inwalls; Check then whether its horizontal center line conforms to the drawing design with vertical center line; Confirm just can carry out perforate after errorless; Because perforate locating accuracy in air port directly influences the installation and inner precision of building by laying bricks or stones of air port system, so the perforate location must guarantee that the absolute altitude in each air port and medullary ray intersect at a point 8.
Claims (1)
1. blast furnace engineering air port and air-supply arrangement perforate localization method; It is characterized in that: carry out according to the following step: (1) is equipped with gusset plate on the monolithic furnace shell; After the assembly unit of some monolithic furnace shells; Between two adjacent monolithic furnace shells, saddle plate is housed, and between two relative monolithic furnace shells, reinforcing member is installed; (2) carry out the lifting of air port section furnace shell, and carry out the inspection of absolute altitude, levelness, ovality, the inspection of circumferential weld groove misalignment and furnace shell centrad successively; Then the furnace shell ring is met and carry out welded clockwise, encircle at last and meet the internal soundness inspection; (3) will go up band furnace shell installation in position, and carry out the furnace shell positioned centrally; (4) perforate of carrying out the air port is located; After at first adopting precision level and transit instrument to get ready the horizontal center line in air port and vertical center line it is labeled on the furnace shell inwall; Check then whether its horizontal center line conforms to the drawing design with vertical center line; Confirm just can carry out perforate after errorless; Because perforate locating accuracy in air port directly influences the installation and inner precision of building by laying bricks or stones of air port system, so the perforate location must guarantee that the absolute altitude in each air port and medullary ray intersect at a point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101531341A CN101736105B (en) | 2008-11-18 | 2008-11-18 | Method for perforating and positioning engineering air port and air supply device of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101531341A CN101736105B (en) | 2008-11-18 | 2008-11-18 | Method for perforating and positioning engineering air port and air supply device of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736105A CN101736105A (en) | 2010-06-16 |
| CN101736105B true CN101736105B (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101531341A Active CN101736105B (en) | 2008-11-18 | 2008-11-18 | Method for perforating and positioning engineering air port and air supply device of blast furnace |
Country Status (1)
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| CN (1) | CN101736105B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666770A (en) * | 2018-12-28 | 2019-04-23 | 中国二冶集团有限公司 | The construction method of tuyere flange equipment mounting and adjusting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030430A (en) * | 1998-07-24 | 2000-02-29 | Material Conversions, Inc. | Blast furnace with narrowed top section and method of using |
| CN1330160A (en) * | 2000-06-27 | 2002-01-09 | 北京科技大学 | Method for in-situ measuring charge of blast furnace |
| CN1967121A (en) * | 2005-11-16 | 2007-05-23 | 烟台鲁宝钢管有限责任公司 | Rebuilding method for ring furnace |
-
2008
- 2008-11-18 CN CN2008101531341A patent/CN101736105B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030430A (en) * | 1998-07-24 | 2000-02-29 | Material Conversions, Inc. | Blast furnace with narrowed top section and method of using |
| CN1330160A (en) * | 2000-06-27 | 2002-01-09 | 北京科技大学 | Method for in-situ measuring charge of blast furnace |
| CN1967121A (en) * | 2005-11-16 | 2007-05-23 | 烟台鲁宝钢管有限责任公司 | Rebuilding method for ring furnace |
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| Publication number | Publication date |
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| CN101736105A (en) | 2010-06-16 |
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