CN103333974B - Simple-and-accurate-positioning blast furnace shell upside-down charging method - Google Patents
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- CN103333974B CN103333974B CN201310289957.8A CN201310289957A CN103333974B CN 103333974 B CN103333974 B CN 103333974B CN 201310289957 A CN201310289957 A CN 201310289957A CN 103333974 B CN103333974 B CN 103333974B
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Abstract
The invention provides a blast furnace shell upside-down charging method. The method is especially suitable for modifying a blast furnace surrounded by a furnace frame, and can reduce the construction cost, accelerate the construction speed and accurately position a furnace zone. The blast furnace shell upside-down charging method comprises the following steps: sending an nth furnace zone into the furnace frame at an opening at one side of the lower portion of the furnace frame, lifting the nth furnace zone through the working of the upper portion of the furnace frame, aligning, and fixing the circumference of the nth furnace zone to the furnace frame; and sending an mth furnace zone into the furnace frame from the opening, lifting the mth furnace zone through working, aligning, and butt-welding the mth furnace zone to an (m+1)th furnace zone, wherein m=n-1, n-2, ..., 2,1, and n is a natural number; and when aligned, a cross curve drawing method is adopted to find the center of the blast furnace, a suspension line is drawn, and the error between the center of the furnace zone and the center of the blast furnace is determined through the circular motion of a long fine line and a short fine line around the suspension line according to the distances of eight outside labels to the outer ring of the furnace zone and a distance of one end of the short fine line away from the suspension line to the inner ring of the furnace zone.
Description
Technical field
The present invention relates to the method for the last furnace shell in grate (high furnace frame) being carried out to upside-down mounting, specifically, is the simple last furnace shell flip-chip method accurately in a kind of location.
Background technology
Last furnace shell is made up of the 1st furnace zone, the 2nd furnace zone, the n-th furnace zone from bottom to top successively.When installing blast furnace, what generally adopt is formal dress method, namely first installs the 1st furnace zone, is then sling (lifting) in the 2nd furnace zone, butt welding is carried out in the 2nd furnace zone and the 1st furnace zone, installs each furnace zone successively so from bottom to top.
During for old blast furnace reformation, because blast furnace is surrounded by grate (high furnace frame), be generally and reduce investment outlay, all utilizing original old high furnace frame to carry out renewal blast furnace, or BF expansion.Can limited because of the ride height of Top of BF (distance at distance grate top, driving bottom be less), by driving furnace zone cannot be promoted to and move horizontally on grate afterwards, put into grate again.Therefore formal dress cannot be carried out.
Summary of the invention
The object of this invention is to provide a kind of method of last furnace shell being carried out to upside-down mounting, it is particularly suitable for the transformation having the blast furnace of grate around, can reduce construction cost, accelerates speed of application, and furnace zone accurate positioning.
The simple last furnace shell flip-chip method accurately in location of the present invention, described furnace shell from bottom to top successively by the 1st furnace zone, the 2nd furnace zone ..., n-th furnace zone composition; Furnace shell flipping step is as follows:
Higher than the position of the n-th installation site, furnace zone on grate, cross hairs is pulled into from 0 ° and 90 ° with the filament that two horizontal directions extend, the crossing center of cross hairs is made to be positioned on blast furnace center line, then on grate, messenger wire is hung higher than the position of the n-th installation site, furnace zone, messenger wire lower end connects plumb bob, and messenger wire is by the crossing center of cross hairs;
Have opening in the side, bottom of grate, openings of sizes is wanted to make each furnace zone pass through;
N-th furnace zone is sent in grate from described opening part, by the driving being positioned at grate top, the n-th furnace zone is promoted; Weld multiple bracket at the n-th furnace zone periphery, then the n-th furnace zone is declined, play bracket for the grate n-th layer platform supporting the n-th furnace zone; The position in the n-th furnace zone is adjusted, centering n-th furnace zone relative to messenger wire;
M furnace zone is sent in grate from described opening part, by driving, m furnace zone is promoted; In m furnace zone, periphery welds multiple bracket, then m furnace zone is declined, plays bracket for the grate m layer platform supporting m furnace zone; The position in m furnace zone is adjusted, centering m furnace zone relative to messenger wire; Butt welding is carried out in m furnace zone and m+1 furnace zone;
The n-th, the method for m furnace zone centering is: one end length being greater than the long fine rule of furnace zone outer radii is connected on messenger wire, in the long fine rule of horizontal rotation in surface one week centered by messenger wire, make 8 outside marks n-th, on m layer platform, it is the circumferentially same of long fine rule length that 8 outside marks are distributed on radius; One end length being less than or equal to the short fine rule of furnace zone inner radii is connected on messenger wire, in the short fine rule of horizontal rotation in surface one week centered by messenger wire; The position in adjustment furnace zone, make 8 outside marks equal to the distance of outer ring, furnace zone, short fine rule is equal to the distance of furnace zone inner ring away from the other end of messenger wire;
M=n-1, n-2 ..., 2,1, n is natural number.
Above-mentioned last furnace shell flip-chip method, sends into the 1st furnace zone in grate from described opening part, then the 1st bottom, furnace zone is fixed on ground;
S furnace zone is sent in grate from described opening part, then butt welding is carried out in s furnace zone and the 1st furnace zone; S=2,3;
4th furnace zone is sent in grate from described opening part, then butt welding is carried out in the 4th furnace zone and the 3rd furnace zone, the 5th furnace zone;
m=n-1，n-2，…，5。
Above-mentioned last furnace shell flip-chip method, described opening part is provided with the pushing beam extended horizontally in grate, pushing beam is provided with track, passes car and roll setting in orbit, arrange to drive between pushing beam and passing car and pass the drive unit of car along rail moving; Pass on car by each furnace zone is placed on and drives the method for passing car that each furnace zone is sent in grate.
Above-mentioned last furnace shell flip-chip method, after butt welding is carried out in neighbouring two furnace zones, then fixes the periphery in that furnace zone and grate being positioned at bottom.
Above-mentioned last furnace shell flip-chip method, the n-th, the method for m furnace zone centering is: be provided with cushion block in each bracket bottom and n-th, between m layer platform, be provided with the hydraulic jack promoting bracket and move radially along furnace shell between grate and each bracket on same furnace zone; By adjusting the height in the quantity regulating furnace zone of cushion block, promoting furnace zone by hydraulic jack and moving horizontally.The bottle gouard moved by hands moving bracket oscilaltion to is provided with between driving and bracket.
Beneficial effect of the present invention: the flip-chip method that this patent adopts.Be first sling in the n-th furnace zone, the periphery in the n-th furnace zone and grate are fixed; Then sling in the (n-1)th furnace zone, butt welding is carried out in the (n-1)th furnace zone and the n-th furnace zone; Install each furnace zone successively so from the top down.Adopt construction method of the present invention to transform the blast furnace in grate, remove old grate without the need to spended time, only need the side mouth at grate, furnace zone can be entered in grate.Old grate also can be utilized to be fixed furnace zone simultaneously.Constantly reduce construction cost, also accelerate construction speed.During the adjustment of location, furnace zone, adopting draws the method for cross hairs to find blast furnace center, draw messenger wire again, by long fine rule and the short fine rule circular motion around messenger wire, according to 8 outside marks to the distance of outer ring, furnace zone and short fine rule away from the other end of messenger wire to the distance of furnace zone inner ring, judge the center in furnace zone and the error at blast furnace center, method is simple, easy and simple to handle, accurate positioning, solves the difficult problem that centering location is carried out in each furnace zone aloft.Detect simultaneously 8 outside marks to the distance of outer ring, furnace zone and short fine rule away from the other end of messenger wire to the distance of furnace zone inner ring, can the deviation from circular from Timeliness coverage furnace zone itself, prevent the impact that the deviation from circular from furnace zone itself produces the location in furnace zone.Position in the vertical direction, furnace zone can be adjusted by the height adjusting cushion block, position in the horizontal direction, furnace zone can be promoted by hydraulic jack.Like this, conveniently the position in furnace zone can be adjusted, be easy to a furnace zone below in neighbouring two furnace zones to adjust to the position with a upper furnace zone counterpart centering.Manually cucurbit can promote bracket, the height in convenient adjustment furnace zone.
Accompanying drawing explanation
Fig. 1 is the schematic diagram after last furnace shell is installed.
Fig. 2 is the schematic diagram behind installation the 1st furnace zone, the 2nd furnace zone, the 3rd furnace zone.
Fig. 3 is the schematic diagram behind installation the 16th furnace zone.
Fig. 4 is the schematic diagram behind installation the 15th furnace zone.
Fig. 5 is the schematic diagram behind installation the 5th furnace zone.
Fig. 6 is the schematic diagram behind installation the 4th furnace zone.
Fig. 7 is the enlarged diagram of cushion block 17, bracket 16 etc. in Fig. 3.
Fig. 8 is the enlarged diagram of cushion block 27, bracket 26 etc. in Fig. 4.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
See Fig. 1, Partial flats is removed at the tuyere platform place of the following side of grate 1, as furnace shell transport channel opening, and installation passes platform temporarily, on interim passing platform, the distance be provided with between the parallel pushing beam of two of extending horizontally in grate 12, two pushing beams 2 is greater than the maximum gauge of blast furnace.Pushing beam is provided with track 3, passes car 4 and rolled by the roller 5 of bottom and arrange in orbit, the frame of hoist engine 6 is arranged on the crossbeam that is connected between two pushing beams, and the winding rope 7 of hoist engine is connected with passing car.
Furnace shell is made up of 16 furnace zones from bottom to top, be followed successively by the 1st furnace zone 101, the 2nd furnace zone 102 ..., the 16th furnace zone 1016 forms.
The method that this last furnace shell upside-down mounting and formal dress combine is as follows.
See Fig. 2, the 1st furnace zone 101 is transported to sends in grate by passing car 4, then to be sling the 1st furnace zone 101 by driving 11, mobilely pass the outside of car to grate, then the 1st furnace zone is declined, be fixed on ground after centering.
See Fig. 2, the 2nd furnace zone 102 is transported to is sent in grate by passing car, then to be sling the 2nd furnace zone by driving 11, mobilely pass the outside of car to grate, then the 2nd furnace zone is declined, after centering, butt welding is carried out in the 2nd furnace zone and the 1st furnace zone.
See Fig. 2, the 3rd furnace zone 103 is transported to is sent in grate by passing car, then to be sling the 3rd furnace zone by driving, mobilely pass the outside of car to grate, then the 3rd furnace zone is declined, after centering, butt welding is carried out in the 3rd furnace zone and the 2nd furnace zone.
See Fig. 2, higher than the position of the 16th installation site, furnace zone on grate, cross hairs is drawn with the filament that two horizontal directions extend, the crossing center of cross hairs is made to be positioned on blast furnace center line, then on grate, messenger wire 12 is hung higher than the position of the 16th installation site, furnace zone, messenger wire lower end connects the plumb bob 13 of heavy 10kg, and messenger wire is by the crossing center of cross hairs.One end length being greater than the long fine rule 14 of the 16th furnace zone outer radii is connected on messenger wire, in the long fine rule of horizontal rotation in surface 14 1 weeks centered by messenger wire, 16th layer of platform 15 of grate is made 8 outside marks, and it is the circumferentially same of long fine rule 14 length that 8 outside marks are distributed on radius.
See Fig. 3,7, the 16th furnace zone 1016 is transported in feeding grate by passing car, and by driving a vehicle, 11 the 16th furnace zones 1016 promote.At the 16th furnace zone periphery uniform welding 4 brackets 16, then the 16th furnace zone is declined, support bracket 16 for grate the 16th layer of platform 15 supporting the 16th furnace zone.For the ease of adjusting the position in the 16th furnace zone, between each bracket 16 bottom and the 16th layer of platform, being provided with cushion block 17, between grate and each bracket, being provided with the hydraulic jack 18 promoting bracket and move radially along furnace shell; By adjusting the height in the quantity regulating furnace zone of cushion block, promoting furnace zone by hydraulic jack and moving horizontally.The bottle gouard moved by hands 19 moving bracket oscilaltion to is provided with between driving and bracket.
One end length being less than or equal to the short fine rule 20 of the 16th furnace zone inner radii is connected on messenger wire, in the short fine rule of horizontal rotation in surface one week centered by messenger wire; By the position in adjustment the 16th furnace zones such as cushion block 17, hydraulic jack 18 and bottle gouard moved by hands 19, according to 8 outside marks on platform 15 to the distance of the 16th outer ring, furnace zone and short fine rule 20 away from the other end of messenger wire to the distance of the 16th furnace zone inner ring, judge the center in the 16th furnace zone and the error at blast furnace center, behind such centering the 16th position, furnace zone, the H profile steel 8 in the periphery in the 16th furnace zone and platform 15 is welded and fixed.
See Fig. 4,8, one end length being greater than the long fine rule 24 of the 15th furnace zone outer radii is connected on messenger wire, in the long fine rule of horizontal rotation in surface 24 1 weeks centered by messenger wire, 15th layer of platform 25 of grate is made 8 outside marks, and it is the circumferentially same of long fine rule 24 length that 8 outside marks are distributed on radius.
15th furnace zone 1015 is transported in feeding grate by passing car, and by driving a vehicle, 11 the 15th furnace zones 1015 promote.At the 15th furnace zone periphery uniform welding 4 brackets 26, then the 15th furnace zone is declined, support bracket 26 for grate the 15th layer of platform 25 supporting the 15th furnace zone.For the ease of adjusting the position in the 15th furnace zone, between each bracket 26 bottom and the 15th layer of platform, being provided with cushion block 27, between grate and each bracket, being provided with the hydraulic jack 28 promoting bracket and move radially along furnace shell; By adjusting the height in the quantity regulating furnace zone of cushion block, promoting furnace zone by hydraulic jack and moving horizontally.The bottle gouard moved by hands 19 moving bracket oscilaltion to is provided with between driving and bracket.
One end length being less than or equal to the short fine rule 30 of the 15th furnace zone inner radii is connected on messenger wire, in the short fine rule of horizontal rotation in surface one week centered by messenger wire; By the position in the adjustment furnace zones such as cushion block 27, hydraulic jack 28 and bottle gouard moved by hands 19, according to 8 outside marks on platform 25 to the distance of the 15th outer ring, furnace zone and short fine rule 30 away from the other end of messenger wire to the distance of the 15th furnace zone inner ring, judge the center in the 15th furnace zone and the error at blast furnace center, behind such centering the 15th position, furnace zone, then butt welding is carried out in the 15th furnace zone and the 16th furnace zone; If desired, the H profile steel 9 in the periphery in the 15th furnace zone and platform 25 is welded and fixed.
Like this, with reference to the described installation method in the 15th furnace zone, then weld the 14th furnace zone, the 13rd furnace zone successively, until the 5th furnace zone 105, see Fig. 5.Between furnace zone and grate, brace summer 10 is welded and fixed when needing.
See Fig. 6, then the 4th furnace zone 104 is winched to above furnace roof the 16th furnace zone 1016 by furnace roof driving monolithic from lifting side, in stove, then drop to the 4th installation site, furnace zone carry out that monolithic is in bulk carries out butt welding with the 5th furnace zone 105, the 3rd furnace zone 103.
Claims (2)
1. the simple last furnace shell flip-chip method accurately in location, described furnace shell from bottom to top successively by the 1st furnace zone, the 2nd furnace zone ..., n-th furnace zone composition; It is characterized in that: it comprises the steps:
Higher than the position of the n-th installation site, furnace zone on grate, cross hairs is pulled into from 0 ° and 90 ° with the filament that two horizontal directions extend, the crossing center of cross hairs is overlapped with blast furnace center line, then on grate, messenger wire is hung higher than the position of the n-th installation site, furnace zone, messenger wire lower end connects plumb bob, and messenger wire is by the crossing center of cross hairs;
Have opening in the side, bottom of grate, openings of sizes is wanted to make each furnace zone pass through;
N-th furnace zone is sent in grate from described opening part, by the driving being positioned at grate top, the n-th furnace zone is promoted; Weld multiple bracket at the n-th furnace zone periphery, then the n-th furnace zone is declined, play bracket for the grate n-th layer platform supporting the n-th furnace zone; The position in the n-th furnace zone is adjusted, centering n-th furnace zone relative to messenger wire;
M furnace zone is sent in grate from described opening part, by driving, m furnace zone is promoted; In m furnace zone, periphery welds multiple bracket, then m furnace zone is declined, plays bracket for the grate m layer platform supporting m furnace zone; The position in m furnace zone is adjusted, centering m furnace zone relative to messenger wire; Butt welding is carried out in m furnace zone and m+1 furnace zone;
The n-th, the method for m furnace zone centering is: be provided with cushion block in each bracket bottom and n-th, between m layer platform, be provided with the hydraulic jack promoting bracket and move radially along furnace shell between grate and each bracket on same furnace zone; By adjusting the height in the quantity regulating furnace zone of cushion block, promoting furnace zone by hydraulic jack and moving horizontally; One end length being greater than the long fine rule of furnace zone outer radii is connected on messenger wire, in the long fine rule of horizontal rotation in surface one week centered by messenger wire, make 8 outside marks n-th, on m layer platform, it is the circumferentially same of long fine rule length that 8 outside marks are distributed on radius; One end length being less than or equal to the short fine rule of furnace zone inner radii is connected on messenger wire, in the short fine rule of horizontal rotation in surface one week centered by messenger wire; The position in adjustment furnace zone, make 8 outside marks equal to the distance of outer ring, furnace zone, short fine rule is equal to the distance of furnace zone inner ring away from the other end of messenger wire;
1st furnace zone is sent in grate from described opening part, then the 1st bottom, furnace zone is fixed on ground;
S furnace zone is sent in grate from described opening part, then butt welding is carried out in s furnace zone and the 1st furnace zone; S=2,3;
The monolithic in composition the 4th furnace zone is winched to above furnace roof n-th furnace zone from lifting side, in stove, then drops to the 4th installation site, furnace zone carry out that monolithic is in bulk carries out butt welding with the 5th furnace zone, the 3rd furnace zone;
M=n-1, n-2 ..., 5, n is natural number.
2. last furnace shell flip-chip method as claimed in claim 1, it is characterized in that: described opening part is provided with the pushing beam extended horizontally in grate, pushing beam is provided with track, pass car and roll setting in orbit, arrange to drive between pushing beam and passing car and pass the drive unit of car along rail moving; Pass on car by each furnace zone is placed on and drives the method for passing car that each furnace zone is sent in grate.
3. last furnace shell flip-chip method as claimed in claim 1, is characterized in that: after butt welding is carried out in neighbouring two furnace zones, then the periphery in that furnace zone and grate being positioned at bottom is fixed.
4. last furnace shell flip-chip method as claimed in claim 1, is characterized in that: between driving and bracket, be provided with the bottle gouard moved by hands pulling bracket oscilaltion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310289957.8A CN103333974B (en) | 2013-07-11 | 2013-07-11 | Simple-and-accurate-positioning blast furnace shell upside-down charging method |
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| CN201310289957.8A CN103333974B (en) | 2013-07-11 | 2013-07-11 | Simple-and-accurate-positioning blast furnace shell upside-down charging method |
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| CN103333974B true CN103333974B (en) | 2015-03-25 |
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| CN103962808B (en) * | 2014-05-16 | 2016-07-06 | 中国十九冶集团有限公司 | Fabrication and installation method for last furnace shell |
Citations (2)
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|---|---|---|---|---|
| CN1272552A (en) * | 1999-04-30 | 2000-11-08 | 川崎制铁株式会社 | Method for reconstructing and building blast furnace in short time and its equipment |
| CN202139243U (en) * | 2011-05-05 | 2012-02-08 | 天津二十冶建设有限公司 | Furnace shell installing and translating device for overhauling blast furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243709A (en) * | 1975-10-02 | 1977-04-06 | Sankiyuu Kk | Building method of blast furnace |
| JPS6043404B2 (en) * | 1983-12-02 | 1985-09-27 | 山九株式会社 | Blast furnace repair method |
| CN102031320B (en) * | 2010-09-20 | 2015-01-14 | 中冶天工集团有限公司 | Method for replacing blast furnace shell |
| CN202643717U (en) * | 2012-06-06 | 2013-01-02 | 中国十七冶集团有限公司 | Alignment device of assembly positioning tooling for furnace mantles of blast furnace |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272552A (en) * | 1999-04-30 | 2000-11-08 | 川崎制铁株式会社 | Method for reconstructing and building blast furnace in short time and its equipment |
| CN202139243U (en) * | 2011-05-05 | 2012-02-08 | 天津二十冶建设有限公司 | Furnace shell installing and translating device for overhauling blast furnace |
Non-Patent Citations (1)
| Title |
|---|
| 董志军.大型高炉炉体快速安装工艺研究.《中国优秀硕士学位论文全文数据库（工程科技I辑）》.2012,(第03期),第48-54页、第66页. * |
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