CN102634616A - Blast furnace top flange jackscrew aligning method - Google Patents
Blast furnace top flange jackscrew aligning method Download PDFInfo
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- CN102634616A CN102634616A CN2012101256389A CN201210125638A CN102634616A CN 102634616 A CN102634616 A CN 102634616A CN 2012101256389 A CN2012101256389 A CN 2012101256389A CN 201210125638 A CN201210125638 A CN 201210125638A CN 102634616 A CN102634616 A CN 102634616A
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- jackscrew
- top flange
- furnace top
- furnace
- blast furnace
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Abstract
The invention discloses a blast furnace top flange jackscrew aligning method which is characterized in that a regulating nut of a jackscrew is welded on the end of a steel plate, the four steel plates welded with the adjusting nuts are welded on a furnace casing right below the cross center of a furnace top flange, the jackscrew is screwed in the adjusting nut, and the levelness of the flange is adjusted by adjusting the jackscrew according to practically measured height difference of a measuring tower ruler leveling instrument. The blast furnace top jackscrew aligning method comprises the following steps of: 1. welding the adjusting nut; 2. hanging the furnace top flange; 3. welding the steel plates; 4. and adjusting the levelness of the flange. The blast furnace top jackscrew aligning method has the advantages of being simple to operate, convenient and fast and high in aligning efficiency, greatly shortening the aligning time of the blast furnace top flange, creating conditions for installing the blast furnace equipment, shortening the construction period, and lowering the cost.
Description
Technical field
The present invention relates to equipment field engineering field, is a kind of blast furnace furnace top flange jackscrew aligning method specifically, is used for the installation of blast furnace furnace roof equipment.
Background technology
In the existing metallurgical construction, the aligning method that the blast furnace furnace top flange is installed is on furnace shell and flange, to weld baffle plate, regulates with screw block then, and is time-consuming, is awkward, and efficient is low, influences the installation period of furnace roof equipment.
Summary of the invention
The object of the invention is exactly the above-mentioned shortcoming that exists to prior art, and a kind of blast furnace furnace top flange jackscrew aligning method is provided, and shortens the centering time of blast furnace furnace top flange, reduces cost.
Blast furnace furnace top flange jackscrew aligning method of the present invention is achieved in that said blast furnace furnace top flange jackscrew aligning method; It is characterized in that elder generation is welded on the setting nut of jackscrew on the termination of 20mm Plate Steel; There is the steel plate of setting nut to be welded on the furnace shell under the furnace top flange cross center four block weldings then; The jackscrew of setting nut inward turning upper top semicircular in shape according to measuring the Sopwith staff spirit-leveling instrument actual measurement discrepancy in elevation, is adjusted the levelness of flange through regulating jackscrew.
Blast furnace furnace top flange jackscrew aligning method of the present invention carries out as follows:
1, welding setting nut
Four jackscrew setting nuts are welded on respectively on the termination of four blocks of 20mm Plate Steels.
2, lifting furnace top flange
Furnace top flange is lifted on the furnace shell, and medullary ray is corresponding in length and breadth with furnace shell to make the cross centre mark of furnace top flange.
3, welding steel
Four block weldings are had the steel plate of setting nut, be uniformly distributed with the center in length and breadth that is welded on furnace top flange under furnace shell on.After the steel plate firm welding, the jackscrew of top semicircular in shape is threaded onto on the setting nut.
4, regulate the flange levelness
Place on the last plane of flange measuring Sopwith staff,, regulate the levelness of furnace top flange through jackscrew according to the discrepancy in elevation of spirit-leveling instrument eyeball.
Compared with prior art, the advantage of blast furnace furnace top flange jackscrew aligning method of the present invention is: simple to operate, convenient and swift; Centering efficient is high, has shortened the centering time of blast furnace furnace top flange greatly, for condition has been created in the installation of blast furnace furnace roof equipment; Shorten the duration, reduced cost.
Description of drawings
Fig. 1: blast furnace furnace top flange jackscrew centering sectional view.
Fig. 2: blast furnace furnace top flange jackscrew centering vertical view.
Among the figure: 1, steel plate 2, jackscrew 3, setting nut 4, Sopwith staff 5, furnace top flange 6, furnace shell.
Embodiment
For further describing the present invention, blast furnace furnace top flange jackscrew aligning method of the present invention is further described below in conjunction with accompanying drawing and embodiment.
As shown in the figure; Said blast furnace furnace top flange jackscrew aligning method; It is characterized in that elder generation is welded on the setting nut (3) of jackscrew (2) on the termination of 20mm Plate Steel (1); There is the steel plate (1) of setting nut (3) to be welded on the furnace shell (6) under furnace top flange (5) the cross center four block weldings then; The jackscrew (2) of setting nut (3) inward turning upper top semicircular in shape according to measuring Sopwith staff (4) the spirit-leveling instrument actual measurement discrepancy in elevation, is adjusted the levelness of flange through regulating jackscrew (2).
Blast furnace furnace top flange jackscrew aligning method carries out as follows:
The first step, the welding setting nut.Four jackscrew setting nuts (3) are welded on respectively on the termination of four blocks of 20mm Plate Steels (1).
Second step, the lifting furnace top flange.Blast furnace furnace top flange (5) is lifted on the furnace shell (6), and medullary ray is corresponding in length and breadth with furnace shell (6) to make the cross centre mark of furnace top flange (5).
The 3rd step, welding steel.With four block weldings the steel plate of setting nut (1), be uniformly distributed with the center in length and breadth that is welded on furnace top flange (5) under furnace shell (6) on.After steel plate (1) firm welding, the jackscrew (2) of top semicircular in shape is threaded onto on the setting nut (3).
In the 4th step, regulate the flange levelness.To measure on the last plane that Sopwith staff (4) places blast furnace furnace top flange (5), according to the discrepancy in elevation of spirit-leveling instrument eyeball, the levelness of regulating furnace top flange (5) through jackscrew (2).
When carrying out the installation of 2*1580m3 blast furnace (9#, 10#) furnace roof equipment in certain Iron And Steel Plant in 2011, use blast furnace furnace top flange jackscrew aligning method of the present invention that furnace top flange is carried out centering.Any 2 difference of altitude in plane reaches 0.4mm on the effect flange, is superior to standard gauge definite value 2.64mm (the standard permissible variation is D/1000 and is not more than 3mm, and D representes the steel ring internal diameter, and the steel ring internal diameter is 2640mm).Every blast furnace furnace top flange centering time only needs 0.5 calendar day, needs 1.5 calendar day if carry out centering with screw block, and efficient improves 3 times, 1 day reduction of erection time, low-cost 26000 yuan of two blast furnace co-fallings.
Claims (3)
1. blast furnace furnace top flange jackscrew aligning method; It is characterized in that elder generation is welded on the setting nut of jackscrew on the termination of steel plate; There is the steel plate of setting nut to be welded on the furnace shell under the furnace top flange cross center four block weldings then; Screw on jackscrew in the setting nut,, adjust the levelness of flange through regulating jackscrew according to measuring the Sopwith staff spirit-leveling instrument actual measurement discrepancy in elevation; Blast furnace furnace top flange jackscrew aligning method carries out as follows:
(1) the welding setting nut comprises setting nut is welded on the termination of steel plate;
(2) lifting furnace top flange comprises that furnace top flange lifts on the furnace shell, medullary ray is corresponding in length and breadth with furnace shell to make the cross centre mark of furnace top flange;
(3) welding steel comprises that steel plate is welded on the furnace shell, jackscrew is threaded onto on the setting nut;
(4) regulate the flange levelness, comprise and place the levelness of measuring Sopwith staff, regulating furnace top flange.
2. the said blast furnace furnace top flange of claim 1 jackscrew aligning method is characterized in that the thick 20mm of steel plate of said welding setting nut.
3. the said blast furnace furnace top flange of claim 1 jackscrew aligning method is characterized in that said jackscrew top semicircular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101256389A CN102634616A (en) | 2012-04-26 | 2012-04-26 | Blast furnace top flange jackscrew aligning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101256389A CN102634616A (en) | 2012-04-26 | 2012-04-26 | Blast furnace top flange jackscrew aligning method |
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| CN102634616A true CN102634616A (en) | 2012-08-15 |
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| CN2012101256389A Pending CN102634616A (en) | 2012-04-26 | 2012-04-26 | Blast furnace top flange jackscrew aligning method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170837A (en) * | 2013-03-29 | 2013-06-26 | 中国十七冶集团有限公司 | Jackscrew alignment method of grate of air heating furnace |
| CN104357608A (en) * | 2014-10-14 | 2015-02-18 | 中国十七冶集团有限公司 | Fast alignment method and device for blast furnace top ring |
| CN108977628A (en) * | 2017-05-31 | 2018-12-11 | 五冶集团上海有限公司 | The antidote of Horizental annealer furnace roller flange |
| 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 |
| CN111397482A (en) * | 2020-04-15 | 2020-07-10 | 中国十七冶集团有限公司 | Construction method for measuring and controlling diameter of blast furnace shell |
| CN111854707A (en) * | 2020-06-30 | 2020-10-30 | 中冶天工集团天津有限公司 | Blast furnace top flange alignment device and method |
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| CN201151724Y (en) * | 2007-12-27 | 2008-11-19 | 本钢板材股份有限公司 | Flange for blast furnace hot blast stove |
| CN201406436Y (en) * | 2009-05-18 | 2010-02-17 | 中冶实久建设有限公司 | Mounting structure of blast furnace top flange |
| CN101776191A (en) * | 2010-03-04 | 2010-07-14 | 中冶实久建设有限公司 | Construction method of joint seal of flanges of large-sized gas pipeline of blast furnace |
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2012
- 2012-04-26 CN CN2012101256389A patent/CN102634616A/en active Pending
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| CN201151724Y (en) * | 2007-12-27 | 2008-11-19 | 本钢板材股份有限公司 | Flange for blast furnace hot blast stove |
| CN201406436Y (en) * | 2009-05-18 | 2010-02-17 | 中冶实久建设有限公司 | Mounting structure of blast furnace top flange |
| CN101776191A (en) * | 2010-03-04 | 2010-07-14 | 中冶实久建设有限公司 | Construction method of joint seal of flanges of large-sized gas pipeline of blast furnace |
Non-Patent Citations (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170837A (en) * | 2013-03-29 | 2013-06-26 | 中国十七冶集团有限公司 | Jackscrew alignment method of grate of air heating furnace |
| CN104357608A (en) * | 2014-10-14 | 2015-02-18 | 中国十七冶集团有限公司 | Fast alignment method and device for blast furnace top ring |
| CN108977628A (en) * | 2017-05-31 | 2018-12-11 | 五冶集团上海有限公司 | The antidote of Horizental annealer furnace roller flange |
| CN108977628B (en) * | 2017-05-31 | 2019-09-10 | 五冶集团上海有限公司 | The antidote of Horizental annealer furnace roller flange |
| 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 |
| CN111397482A (en) * | 2020-04-15 | 2020-07-10 | 中国十七冶集团有限公司 | Construction method for measuring and controlling diameter of blast furnace shell |
| CN111854707A (en) * | 2020-06-30 | 2020-10-30 | 中冶天工集团天津有限公司 | Blast furnace top flange alignment device and method |
| CN111854707B (en) * | 2020-06-30 | 2022-07-05 | 中冶天工集团天津有限公司 | Blast furnace top flange alignment device and method |
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Application publication date: 20120815 |