CN202968608U - Converter bottom and converter - Google Patents
Converter bottom and converter Download PDFInfo
- Publication number
- CN202968608U CN202968608U CN2012206629013U CN201220662901U CN202968608U CN 202968608 U CN202968608 U CN 202968608U CN 2012206629013 U CN2012206629013 U CN 2012206629013U CN 201220662901 U CN201220662901 U CN 201220662901U CN 202968608 U CN202968608 U CN 202968608U
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- magnesia
- converter
- carbon brick
- magnesia carbon
- male
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Abstract
The utility model discloses a converter bottom comprising a furnace bottom case, a magnesia permanent layer, a magnesia-carbon brick intermediate layer and a magnesia-carbon brick working layer, wherein the magnesia permanent layer, the magnesia-carbon brick intermediate layer and the magnesia-carbon brick working layer are sequentially arranged in an opening direction of the furnace bottom case; the magnesia-carbon brick working layer comprises a plurality of mutually meshed magnesia-carbon bricks with female and male slots, and the length directions of the magnesia-carbon bricks with the female and male slots are consistent with the opening direction of the furnace bottom case. The converter bottom disclosed by the utility model can effectively achieve the purpose that furnace bottom bricks are simply designed in shape, are easy to form, and are convenient in building and high in integral strength. The utility model further discloses a converter, wherein a sealing strip with a concrete structure is arranged between a converter body and the converter bottom so that the converter has the combined function, such as high temperature resistance, oxidation resistance and impermeability, can effectively prevent the magnesia-carbon bricks at a junction of a furnace liner from oxidizing, hydrating and weathering, prolongs the service lives of the magnesia-carbon bricks and achieves a purpose of preventing steel leakage generated because the magnesia-carbon bricks at the unction is broken due to furnace outside reasons.
Description
Technical field
The utility model relates to the converter field, is specifically related to a kind of converter bottom and converter.
Background technology
Converter is a kind of just refining equipment in steelworks, its major function is by blowing pure oxygen in converter, adding lime, the harmful elements such as the phosphorus in removal (blast furnace) molten iron, sulphur, regulate simultaneously carbon, silicon composition and improve the metal liquid temperature, for next step refining is prepared as far as possible.
The magnesia carbon brick refractory material laying that converter lining adopts, according to the size of the type of furnace, the furnace lining of furnace bottom and shaft is divided into integral body and builds by laying bricks or stones with split and build dual mode by laying bricks or stones.Converter is in whole smelting process---and feed in raw material, blow, put in the operational procedures such as steel, deslagging and slag splashing, can producer be lining with down centered by gudgeon axle and carry out 360 degree and rotate, therefore, require high to the bulk strength of furnace lining structure, the backup lining brick slump must not appear, especially bottom brick.The general converter lining of nominal tonnage more than 100 tons because the furnace shell headroom is large, adopts integral body to build by laying bricks or stones, and namely furnace lining begins to build by laying bricks or stones to fire door from the furnace bottom in furnace shell, and furnace bottom adopts spherical building by laying bricks or stones.The converter lining of shaft nominal tonnage below 100 tons is little because of the furnace shell headroom, the employing split is built by laying bricks or stones, be that furnace bottom, shaft are separately built by laying bricks or stones, standby furnace bottom can lay before the blowing out prerequisite, Deng shaft build by laying bricks or stones complete after, furnace bottom is connected with shaft, so just can shortens blowing out and build the time, improve the operating rate of converter.
The masonry way of furnace bottom is divided into cone cylinder body shape and spherical crown bodily form dual mode is built by laying bricks or stones.The former design the brick type that needs (be rectangular parallelepiped, machine-shaping is convenient) simple in structure, type few, build by laying bricks or stones conveniently; The latter designs that the brick type complex structure (be crown polyhedron, machine-shaping is complicated), the type that need are many, to build difficulty by laying bricks or stones large.But compact construction between spherical bottom brick and brick, interaction strength are large, are difficult for the brick that collapses in smelting process, and multiplex monolithic lining in large-scale body of heater is built by laying bricks or stones; On year-on-year basis, the brick of round platform build furnace bottom and the structure between brick are comparatively loose, interaction strength a little less than, the brick that easily collapses in smelting process is multiplexly built by laying bricks or stones in the split type of middle-size and small-size furnace lining.And the furnace bottom that split is built by laying bricks or stones and the shaft place of combining are prone to backup lining brick (magnesia carbon brick) weathering phenomenon (the outer oxygen-containing gas of stove enters, furnace crown or petticoat pipe leak infiltrates seam along the furnace shell wall), cause high-temp liquid to spill, gently impact is produced, and is heavy jeopardize equipment and personnel safety.After central small vessel adopts top and bottom complex blowing technique, after furnace bottom is all arranged a plurality of gas permeable bricks has been installed, the overall construction intensity of building by laying bricks or stones to bottom brick is had higher requirement---and should the brick type simple, moulding is easy, build by laying bricks or stones again conveniently, bulk strength is large, prevents the seam weathering.
The utility model is not enough for prior art, the furnace bottom that a kind of Novel brick type design is provided and builds by laying bricks or stones.
The utility model content
The utility model is not enough for prior art, and a kind of converter bottom is provided, and can effectively accomplish bottom brick type simplicity of design, and moulding is easy, builds by laying bricks or stones conveniently, bulk strength is high.
A kind of converter bottom, comprise bearth shell and be successively set on magnesia permanent layer, magnesia carbon brick middle layer and magnesia carbon brick working lining in described bearth shell along the opening direction of described bearth shell, described magnesia carbon brick working lining comprises some magnesia carbon bricks with the male and female groove of mutually stinging block, and the length direction of described magnesia carbon brick with the male and female groove is consistent with the opening direction of described bearth shell.
Opening direction along described bearth shell refers to from the direction at bottom surface to the top (being the opening position) of described bearth shell of described bearth shell.
Length direction with the magnesia carbon brick of male and female groove is consistent with the opening direction of bearth shell, be about to vertically build by laying bricks or stones with the magnesia carbon brick of male and female groove, and by cooperatively interacting with the male and female groove in the magnesia carbon brick of male and female groove, mutually sting block, improve the strength of joint of magnesia carbon brick working lining, thereby extended the work-ing life of converter bottom.
As preferably, described male and female groove comprises male groove (i.e. projection) and the female groove (groove) of mutual concavo-convex cooperation, thereby make male groove and the female groove of adjacent magnesia carbon brick with the male and female groove to cooperatively interact, thereby realize mutually stinging block, obtain strength of joint magnesia carbon brick working lining preferably.
As preferably, described male and female groove is positioned at described magnesia carbon brick with the male and female groove near a side in described magnesia carbon brick middle layer, thereby can guarantee to build by laying bricks or stones intensity on the one hand, on the other hand, can make and build by laying bricks or stones conveniently.
As preferably, described male and female groove is along the width setting of described magnesia carbon brick with the male and female groove, be the recessed to all along the width of described magnesia carbon brick with the male and female groove of the projection direction of male groove in described male and female groove and female groove, thereby it is easy to make with the magnesia carbon brick moulding of male and female groove, and can guarantee the strength of joint of magnesia carbon brick working lining.
As preferably, leave the gap of 3 ~ 7mm between the male groove that coordinates in the adjacent magnesia carbon brick with the male and female groove and female groove, be filled with chamotte in this gap, thereby make the adjacent engaged contact of the magnesia carbon brick with the male and female groove tight, improve the strength of joint of magnesia carbon brick working lining.
As preferably, described converter bottom is provided with through the through hole of described magnesia permanent layer, magnesia carbon brick middle layer and magnesia carbon brick working lining, and the bottom of described through hole is filled with ramming mass, and has built gas permeable brick by laying bricks or stones in described through hole.The gas permeable brick of above-mentioned setting has the advantages such as through-blowing rate is high, operational safety reliable, long service life.
Further preferred, described gas permeable brick is four, be positioned at the center of described converter bottom to the middle part of outer rim, four blocks of gas permeable bricks are distributed in center take described converter bottom symmetrically on the concentric(al) circles in the center of circle, and gas permeable brick is symmetrical to be installed to make and has blowing smelting effect preferably.
As preferably, described magnesia carbon brick working lining comprises that four squares that cruciform is divided into build the district by laying bricks or stones, take the center of described converter bottom as described criss-cross center.Each square is built the district by laying bricks or stones, is built into several squares by the magnesia carbon brick with the male and female groove, and then each square is from the formation that is close together successively of center to the outer rim of converter bottom.
As preferably, described magnesia permanent layer comprises two-layer permanent layer magnesia brick of building by laying bricks or stones.
As preferably, described magnesia carbon brick middle layer comprises two-layer common magnesia carbon brick of building by laying bricks or stones.
Above-mentioned magnesia carbon brick working lining, magnesia permanent layer and magnesia carbon brick middle layer can be satisfied user demand well.
As preferably, described converter bottom is the round platform build, and is for normally used converter bottom, applied widely.
The utility model also provides a kind of converter, by be provided with the sealed strip of concrete structure between converter body and converter bottom, have the combined function such as high temperature resistant, anti-oxidation, water-impervious, make converter can effectively prevent magnesia carbon brick oxidation, aquation, the weathering of furnace lining joint, extend magnesia carbon brick work-ing life, reach the magnesia carbon brick that prevents the junction and destroy the purpose of the bleed-out that causes due to the outer reason of stove.
A kind of converter, comprise converter bottom and the converter body that is connected with described converter bottom, be provided with the sealed strip of concrete structure between described converter body and converter bottom, the sealed strip of described concrete structure comprises the steel-wire carcass that woven wire is made and is wrapped in chamotte on described steel-wire carcass.
Compared with prior art, the utlity model has following beneficial effect:
The utility model converter bottom, to vertically build by laying bricks or stones with the magnesia carbon brick of male and female groove, and by cooperatively interacting with the male and female groove in the magnesia carbon brick of male and female groove, mutually sting block, improve the strength of joint of magnesia carbon brick working lining, can effectively fall and prevent the furnace bottom brick that collapses, thereby extended the work-ing life of converter bottom, can effectively accomplish bottom brick type simplicity of design, moulding easily, build by laying bricks or stones conveniently, bulk strength is high, and can prevent the weathering of seam magnesia carbon brick.
The utility model converter, by be provided with the sealed strip of concrete structure between converter body and converter bottom, have the combined function such as high temperature resistant, anti-oxidation, water-impervious, make converter can effectively prevent magnesia carbon brick oxidation, aquation, the weathering of furnace lining joint, extend magnesia carbon brick work-ing life, prevent that the magnesia carbon brick of junction from because the outer reason of stove is destroyed the bleed-out that causes, effectively extending the work-ing life of the utility model converter.
Description of drawings
Fig. 1 is the structural representation of the utility model converter bottom;
Fig. 2 is along the cross-sectional view of the converter bottom of A-A section line in Fig. 1;
Fig. 3 is with the structural representation of the magnesia carbon brick of male and female groove in the utility model;
Fig. 4 is with the left view of the magnesia carbon brick of male and female groove in Fig. 3;
Fig. 5 is the male groove of adjacent magnesia carbon brick with the male and female groove and the structural representation that female groove coordinates.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with accompanying drawing, technical scheme in the utility model embodiment is carried out clear, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, converter bottom comprises bearth shell 1 and is successively set on magnesia permanent layer 2, magnesia carbon brick middle layer 3 and magnesia carbon brick working lining 4 in bearth shell 1 along the opening direction of bearth shell 1.Converter bottom is the round platform build, is normally used converter bottom.Magnesia permanent layer 2 comprises two-layer permanent layer magnesia brick of building by laying bricks or stones, is specially first and flatly builds one deck permanent layer magnesia brick, side is built one deck permanent layer magnesia brick again.Magnesia carbon brick middle layer 3 comprises two-layer common magnesia carbon brick of building by laying bricks or stones, be specially the flat two-layer common magnesia carbon brick of building, magnesia carbon brick working lining 4 comprises some magnesia carbon bricks 41 with the male and female groove of mutually stinging block, length direction with the magnesia carbon brick 41 of male and female groove is consistent with the opening direction of bearth shell 1, namely adopt the perpendicular magnesia carbon brick 41 of building one deck band male and female groove, form magnesia carbon brick working lining 4.Magnesia carbon brick working lining 4 comprises that four squares that cruciform is divided into build the district by laying bricks or stones, take the center of converter bottom as criss-cross center, each square is built the district by laying bricks or stones, be built into several squares by the magnesia carbon brick 41 with the male and female groove, then each square is from the formation that is close together successively of center to the outer rim of converter bottom.When building magnesia carbon brick working lining 4 by laying bricks or stones, first two blocks of gas permeable bricks 5 are arranged on the diameter line of converter bottom top plan view, " cruciform " method of employing, build mutual vertical two rows by laying bricks or stones with the magnesia carbon brick 41 of male and female groove, then in " cruciform " four zones of dividing, alternately built by laying bricks or stones to outer rim two square edges by the center according to " herring-bone " (also claiming square).
As depicted in figs. 1 and 2, converter bottom is provided with through the through hole of magnesia permanent layer 2, magnesia carbon brick middle layer 3 and magnesia carbon brick working lining 4, the bottom of this through hole is filled with ramming mass 6, the concrete aluminium chrome refractory of ramming mass 6, and built gas permeable brick 5 by laying bricks or stones in this through hole.When building magnesia permanent layer 2, reserve a square hole that is not less than gas permeable brick 5 thickness under gas permeable brick 5 positions, after vertical installation gas permeable brick 5 location positionings, in square opening with the tamping of aluminium chrome refractory.As far as possible by magnesia carbon brick 41 jam-packeds with the male and female groove, smear in right amount magnesia chamotte around gas permeable brick 5, thickness is no more than 2mm.Gas permeable brick 5 is four, is positioned at the center of converter bottom to the middle part of outer rim.Four blocks of gas permeable bricks are distributed in center take converter bottom symmetrically on the concentric(al) circles in the center of circle.According to the actual situation of building by laying bricks or stones, adjusting gas permeable brick 5 positions, energy all around are until be close together with the magnesia carbon brick 41 with the male and female groove that erects block on every side.Gas blow pipe 7 passes ramming mass 6 and is connected with gas permeable brick 5.
As Fig. 2, Fig. 3 and shown in Figure 4, the male and female groove comprises male groove (i.e. projection) and the female groove (groove) of mutual concavo-convex cooperation, the male and female groove is positioned at the magnesia carbon brick 41 of the male and female groove side near magnesia carbon brick middle layer 3, the male and female groove is along the width setting with the magnesia carbon brick 41 of male and female groove, namely in the male and female groove projection direction of male groove and female groove recessed to equal edge with the width of the magnesia carbon brick 41 of male and female groove.
As shown in Figure 5, adjacent with coordinating in the magnesia carbon brick 41 of male and female groove male groove and female groove between leave the gap of 3 ~ 5mm, be filled with chamotte in this gap, make the adjacent engaged contact of the magnesia carbon brick with the male and female groove tight.When building by laying bricks or stones, smear chamotte on male groove, be convenient to build by laying bricks or stones, and can accomplish that engaged contact is tight.
A kind of converter, comprise converter bottom as depicted in figs. 1 and 2 and the converter body (not shown) that is connected with converter bottom, be provided with the sealed strip 8 of concrete structure between converter body and converter bottom, the sealed strip 8 of concrete structure comprises the steel-wire carcass that woven wire is made and is wrapped in aluminium chromium chamotte on steel-wire carcass.
After complete at the bottom of masonry heater, at annular seal bar of converter bottom upper table surface flange periphery upper ends, then its making method curves an annulus suitable with the converter bottom upper flanges for make the Steel Traveler cylinder of a diameter of section 50mm of the woven wire of diameter 0.3mm.Evenly be wrapped in the Steel Traveler cylinder outside, the thickness 25mm of aluminium chromium chamotte with aluminium chromium chamotte.when the installing converter furnace bottom is connected with converter body, by the elevate a turnable ladder converter bottom that makes progress, the Steel Traveler cylinder of sealed strip and aluminium chromium chamotte will be squeezed into one, brickwork joint sealing with converter bottom and converter body joint, the heat that during by smelting, furnace shell outwards transmits hardens aluminium chromium chamotte, form a kind of sealed strip 8 of concrete structure, have high temperature resistant, anti-oxidation, the combined function such as water-impervious, can effectively prevent the magnesia carbon brick oxidation of furnace lining joint, aquation, weathering, extend magnesia carbon brick work-ing life, reach the magnesia carbon brick that prevents the joint and destroy the purpose of the bleed-out that causes due to the outer reason of stove.
After adopting the utility model converter bottom, result of use is obvious, does not go out the slump of converter bottom brick and converter bottom and converter body seam magnesium carbon the bleed-out phenomenon occurred by weathering.
Claims (10)
1. converter bottom, it is characterized in that, comprise bearth shell and be successively set on magnesia permanent layer, magnesia carbon brick middle layer and magnesia carbon brick working lining in described bearth shell along the opening direction of described bearth shell, described magnesia carbon brick working lining comprises some magnesia carbon bricks with the male and female groove of mutually stinging block, and the length direction of described magnesia carbon brick with the male and female groove is consistent with the opening direction of described bearth shell.
2. converter bottom according to claim 1, is characterized in that, described male and female groove comprises male groove and the female groove of mutual concavo-convex cooperation.
3. converter bottom according to claim 1, is characterized in that, described male and female groove is positioned at described magnesia carbon brick with the male and female groove near a side in described magnesia carbon brick middle layer.
4. converter bottom according to claim 1, is characterized in that, described male and female groove is along the width setting of described magnesia carbon brick with the male and female groove.
5. converter bottom according to claim 1, is characterized in that, leaves the gap of 3 ~ 7mm between the male groove that coordinates in the adjacent magnesia carbon brick with the male and female groove and female groove, is filled with chamotte in this gap.
6. converter bottom according to claim 1, it is characterized in that, described converter bottom is provided with through the through hole of described magnesia permanent layer, magnesia carbon brick middle layer and magnesia carbon brick working lining, and the bottom of described through hole is filled with ramming mass, and has built gas permeable brick by laying bricks or stones in described through hole.
7. converter bottom according to claim 6, is characterized in that, described gas permeable brick is four, is positioned at the center of described converter bottom to the middle part of outer rim, and four blocks of gas permeable bricks are distributed in center take described converter bottom symmetrically on the concentric(al) circles in the center of circle.
8. converter bottom according to claim 1, is characterized in that, described magnesia carbon brick working lining comprises that four squares that cruciform is divided into build the district by laying bricks or stones, take the center of described converter bottom as described criss-cross center.
9. converter bottom according to claim 1, is characterized in that, described magnesia permanent layer comprises two-layer permanent layer magnesia brick of building by laying bricks or stones;
Described magnesia carbon brick middle layer comprises two-layer common magnesia carbon brick of building by laying bricks or stones.
10. converter, it is characterized in that, comprise the described converter bottom of claim 1 ~ 9 any one and the converter body that is connected with described converter bottom, be provided with the sealed strip of concrete structure between described converter body and converter bottom, the sealed strip of described concrete structure comprises the steel-wire carcass that woven wire is made and is wrapped in chamotte on described steel-wire carcass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206629013U CN202968608U (en) | 2012-12-04 | 2012-12-04 | Converter bottom and converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206629013U CN202968608U (en) | 2012-12-04 | 2012-12-04 | Converter bottom and converter |
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| Publication Number | Publication Date |
|---|---|
| CN202968608U true CN202968608U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206629013U Expired - Fee Related CN202968608U (en) | 2012-12-04 | 2012-12-04 | Converter bottom and converter |
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| CN (1) | CN202968608U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639399A (en) * | 2013-12-24 | 2014-03-19 | 营口东邦冶金设备耐材有限公司 | Deformed magnesia carbon brick |
| CN103740886A (en) * | 2014-01-26 | 2014-04-23 | 武汉钢铁集团精鼎工业炉有限责任公司 | Converter bottom structure with multi-point rider brick deploying and controlling and building method of converter bottom structure |
| CN103740887A (en) * | 2014-01-26 | 2014-04-23 | 武汉钢铁集团精鼎工业炉有限责任公司 | Leak-proof steel structure and leak-proof steel process of steelmaking converter bottom |
| CN107739764A (en) * | 2017-11-30 | 2018-02-27 | 北京首钢国际工程技术有限公司 | A kind of Blast Furnace Bottom completely spreads brick fuel structure and building method |
| CN113321491A (en) * | 2021-06-24 | 2021-08-31 | 武汉钢铁有限公司 | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof |
| WO2023132948A1 (en) * | 2022-01-06 | 2023-07-13 | HarbisonWalker International Holdings, Inc. | Refractory lining design and steel practice for low refractory waste, and refractory based on reclaimed low-impurity magnesia-carbon aggregate |
-
2012
- 2012-12-04 CN CN2012206629013U patent/CN202968608U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639399A (en) * | 2013-12-24 | 2014-03-19 | 营口东邦冶金设备耐材有限公司 | Deformed magnesia carbon brick |
| CN103740886A (en) * | 2014-01-26 | 2014-04-23 | 武汉钢铁集团精鼎工业炉有限责任公司 | Converter bottom structure with multi-point rider brick deploying and controlling and building method of converter bottom structure |
| CN103740887A (en) * | 2014-01-26 | 2014-04-23 | 武汉钢铁集团精鼎工业炉有限责任公司 | Leak-proof steel structure and leak-proof steel process of steelmaking converter bottom |
| CN103740886B (en) * | 2014-01-26 | 2015-04-01 | 武汉钢铁集团精鼎工业炉有限责任公司 | Converter bottom structure with multi-point rider brick deploying and controlling and building method of converter bottom structure |
| CN107739764A (en) * | 2017-11-30 | 2018-02-27 | 北京首钢国际工程技术有限公司 | A kind of Blast Furnace Bottom completely spreads brick fuel structure and building method |
| CN113321491A (en) * | 2021-06-24 | 2021-08-31 | 武汉钢铁有限公司 | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof |
| CN113321491B (en) * | 2021-06-24 | 2022-02-18 | 武汉钢铁有限公司 | Converter low-carbon magnesia carbon brick with water-resisting layer and preparation method thereof |
| WO2023132948A1 (en) * | 2022-01-06 | 2023-07-13 | HarbisonWalker International Holdings, Inc. | Refractory lining design and steel practice for low refractory waste, and refractory based on reclaimed low-impurity magnesia-carbon aggregate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201204 |