CN101665853A - Steel tapping hole assembled outside converter and masonry method thereof - Google Patents
Steel tapping hole assembled outside converter and masonry method thereof Download PDFInfo
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- CN101665853A CN101665853A CN200910017757A CN200910017757A CN101665853A CN 101665853 A CN101665853 A CN 101665853A CN 200910017757 A CN200910017757 A CN 200910017757A CN 200910017757 A CN200910017757 A CN 200910017757A CN 101665853 A CN101665853 A CN 101665853A
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Abstract
The invention relates to a steel tapping hole assembled outside a converter and a masonry method thereof. The steel tapping hole comprises a steel tapping hole inner large brick (1), a steel tapping hole outer large brick (2), a steel tapping hole sleeve brick (3), stuffing (4), a steel pipe (5), an inner fixing plate (6) and an outer mounting plate (7) and is characterized in that the steel tapping hole inner large brick (1) and the steel tapping hole outer large brick (2) are sleeved on the steel tapping hole sleeve brick (3); and after the steel tapping hole is integrally assembled and roasted outside the converter, the internal assemblying is carried out when the converter body of the converter is masoned to the position of the steel tapping hole. The invention enhances the masonry quality of the converter steel tapping hole, solves the problem of quality defects and potential safety hazards in the prior steel tapping hole masonry technique and can shorten the installation time ofthe steel tapping hole inside the converter by more than 3 hours under an equal masonry technology condition.
Description
Technical field
The present invention relates to a kind of steel tapping hole assembled outside converter and building method, belong to ferrous metallurgy process for making technical field.
Background technology
Converter taphole is the tapping passage of converter smelting molten steel, is made up of syphon, the outer syphon of tap hole and tapping muzzle brick in the tap hole.When building the new furnace lining of converter by laying bricks or stones, at present both at home and abroad the tap hole syphon mainly contains two kinds with the brick-building art of tapping muzzle brick: a kind of is that shaft is when building the tap hole position, build syphon in the tap hole, the interior syphon of tap hole by laying bricks or stones, treat that shaft is built by laying bricks or stones and build outer syphon of tap hole and tapping muzzle brick after finishing again, promptly the tap hole syphon is finished in the converter stove He in the building process with the assembling of tapping muzzle brick.The major defect that exists is: the installation of tap hole syphon and tapping muzzle brick is prone to masonry quality problems such as off-centre, stopping composition is unreal, and the tap hole syphon is worn steel with the circumferential weld between the muzzle brick of tapping, burned with anger and quality accident such as tap hole syphon damage when causing opening new furnace; The tap hole syphon is long with the interior settling time of stove of tapping muzzle brick, and middle-size and small-size converter taphole is installed generally more than 3 hours, and the mammoth conveter tap hole is installed generally more than 5 hours.Another kind is to build shaft by laying bricks or stones after building tap hole earlier by laying bricks or stones, syphon, the outer syphon of tap hole in the tap hole are installed, are fixed on the furnace shell, tapping muzzle brick is installed again, fascinate converter after converter, outside the interior syphon of tap hole, tap hole, pour into magnesia repair material in the circumferential weld of syphon and tapping muzzle brick, real with manual tamping machine, with the wood ignition baking, make the repair material Fast Sintering then.The major defect that exists is: the one, it is long in time limit to build tap hole by laying bricks or stones, the 2nd, the major safety risks that tap hole has material, comes off, the 3rd, in shaft and the tap hole syphon, tap hole outward the combining site of syphon easily go out the slit, wear steel, have hidden danger of quality.
2003 01 phases of Anshan iron and steel plant technology disclose " design of Whole Taphole of LD and application ", and whole tap hole technical process is as follows: batching → premix → granulation → flow → all mix → sieve → ageing mixture → drying → moulding → processing → inspection → packing.The Whole Taphole of LD that this technology is produced adopts 15000t cold isostatic press moulding process, and the deficiency of existence is, complex process, and technological equipment investment is big, the production cost height.
Kunming Metallurgical Highere Technical College's journal, 2002 02 phases disclosed " application of whole tap hole and pushing off the slag slag-blocked tapping ", syphon in the tap hole in this technology, outer syphon of tap hole and being assembled in the converter stove He in the building process of tapping muzzle brick are finished, the major defect that exists is: the one, and the tap hole syphon is prone to off-centre with the installation of tapping muzzle brick, the unreal masonry quality problem that waits of stopping composition, the 2nd, the tap hole syphon is long with the interior settling time of stove of tapping muzzle brick, middle-size and small-size converter taphole is installed generally more than 3 hours, and the mammoth conveter tap hole is installed generally more than 5 hours.
Summary of the invention
Defective at prior art, the invention provides a kind of external stove integral assembling converter taphole, after the baking, when building the tap hole position by laying bricks or stones, converter body carries out complete installation in the stove, improved the masonry quality of converter taphole, solve mass defect and potential safety hazard in the existing tap hole brick-building art, and can shorten the interior tap hole settling time of stove more than 3 hours.
A kind of steel tapping hole assembled outside converter, form by syphon in the tap hole (1), the outer syphon (2) of tap hole, tapping muzzle brick (3), steel pipe (5), internal fixation plate (6), outer binding (7), all there is circular hole at the center of the outer syphon (2) of syphon (1) and tap hole in the tap hole, interior syphon (1) of tap hole and the outer syphon (2) of tap hole are sleeved on the tapping muzzle brick (3), and its circumferential weld employing stopping composition (4) with tapping muzzle brick (3) fills up, tamping; Tapping muzzle brick (a 3) steel pipe of endoporus suit (5), internal fixation plate (6) suit, be welded on the steel pipe (5), be used for fixing syphon (1) in the tap hole, outer binding (7) suit, screw are fixed on steel pipe (5), make the outer syphon (2) of tap hole fastening.
Preferably, dock in female mouthful of syphon (1) rim of the mouth with the outer syphon (2) of tap hole in the tap hole, and its circle hole centreline overlaps.
Syphon (1) in the described tap hole, its transverse section is a rectangle, wall thickness 120～200mm, central aperture is ￠, along the hole laterally, longitudinal cenlerline one is divided into four, code name is respectively A, B, C, D, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together respectively A and B, C and D earlier, the assurance circle hole centreline overlaps, inner wall smooth; And then with high-temperature adhesives A and B, C and D are bonded together, its brickwork joint is less than 1mm, and diameter of bore ￠ is 350～400mm, and diameter of bore ￠ is than the big 60～100mm of tapping muzzle brick outer diameter D.
In the tap hole during syphon (1) assembling, boss arranged, adopt portable polishing machine finishing smooth if inwall is rough.
The material of syphon (1) is the magnesium carbonaceous in the tap hole, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa.
The outer syphon (2) of described tap hole, its transverse section is a rectangle, and wall thickness 120～160mm is divided into 5～8 joints along its length, every joint length 120～200mm, joint with save between be connected with mother-son mouth, every joint is divided into two along the hole cross central line again, code name is respectively E, F, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, inner wall smooth, and its brickwork joint is less than 1mm.Its diameter of bore ￠ is identical with syphon (1) in the tap hole, promptly than the big 60～100mm of tapping muzzle brick outer diameter D; Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa.
During outer syphon (2) assembling of tap hole, boss arranged, adopt portable polishing machine finishing smooth if inwall is rough.
Described tapping muzzle brick (3), its section is an annular, outer diameter D is 260～300mm mm, and inner diameter d is 135～165mm, and length L is 1300～1600mm, divide equally 5～9 joints along the hole cross central line, every joint length is 200～250mm, adopts the mother-son mouth mode of connection, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, inner wall smooth; Its brickwork joint is less than 1mm.Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa., there is a boss in tapping muzzle brick (3) when assembling if inwall is rough, adopts portable polishing machine finishing smooth.
Described steel pipe (5), its external diameter is than the little 2～5mm of tapping muzzle brick inner diameter d, and wall thickness is 10～15mm, and it is a that its left end increases length than tapping muzzle brick L; It is b and cover screw that its right-hand member increases length than tapping muzzle brick L, is used to install outer binding.Described a is 350～550mm, and described b is 30～50mm.
Described internal fixation plate (6), outer binding (7) all are to be made by general steel plate, and section is an annular, and steel plate thickness is 20～30mm.Wherein the diameter of bore of internal fixation plate (6) is than the big 2～3mm of steel pipe (5) external diameter, and the endoporus of outer binding (7) is a screw hole, cooperates the screw of steel pipe (5), is used to install outer binding.The outside diameter of internal fixation plate (6) and outer binding (7) is than the big 10～30mm of diameter of bore ￠ of the outer syphon of tap hole (2).
A kind of manufacture method of steel tapping hole assembled outside converter, step is as follows:
1) steel pipe (5) is inserted in tapping muzzle brick (3) endoporus after the assembling;
2) tapping muzzle brick (3) left end of dress steel pipe (5) in syphon (1) is sleeved in the tap hole after the assembling, tapping muzzle brick (3) right-hand member of dress steel pipe (5) in the outer syphon (2) of every joint tap hole after the assembling is sleeved on successively, syphon (1) is connected with the mother-son mouth that is combined into of the outer syphon (2) of tap hole in the tap hole, the assurance circle hole centreline overlaps, and its brickwork joint is less than 1mm;
3) peripheral clearance of the outer syphon (2) of syphon (1) and tap hole and the muzzle brick (3) of tapping in tap hole, employing magnesian ramming mass (4) as stopping composition fill up, tamping;
4) steel pipe (5) of the left side of syphon (1) is gone up welding internal fixation plate (6) in the suit tap hole,
5) outside the suit tap hole, install on the steel pipe of the right side of syphon (2) outside binding (7), carry out fastening;
6) 15～250 ℃ of even, continuous intensifications, baking 16 hours, the steel tapping hole assembled outside converter manufacturing was finished.
Preferably, steel pipe in the step 1) (5) left end stretches out tapping muzzle brick (3) 350～550mm, and right-hand member stretches out tapping muzzle brick (3) 30～50mm.
Preferably, the method of syphon is in the assembling tap hole, the interior syphon of tap hole is horizontal along the hole, longitudinal cenlerline one is divided into four, code name is respectively A, B, C, D, assembles behind mechanical pressing: earlier adopt high-temperature adhesives to bond together respectively A and B, C and D, the coincidence of assurance circle hole centreline, inner wall smooth, and then with high-temperature adhesives A and B, C and D are bonded together, its brickwork joint is less than 1mm, and diameter of bore ￠ is than the big 60～100mm of tapping muzzle brick outer diameter D.
Preferably, the method of the outer syphon of assembling tap hole is that the outer syphon of tap hole is divided into 5～8 joints, every joint length 120～200mm along its length, joint with save between mother-son mouth be connected, every joint is divided into two along the hole cross central line again, and code name is respectively E, F, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, inner wall smooth, its brickwork joint are less than 1mm, and diameter of bore ￠ is than the big 60～100mm of tapping muzzle brick outer diameter D.
Preferably, the method of assembling tapping muzzle brick is, tapping muzzle brick inner diameter d is 135～165mm, and outer diameter D is 260～300mm, length L is 1300～1600mm, divide equally 5～9 joints along the hole cross central line, every joint length 200～250mm adopts the mother-son mouth mode of connection, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, inner wall smooth, and its brickwork joint is less than 1mm.
Preferably, the method of making steel pipe is, outer diameter of steel pipes is than the little 2～5mm of tapping muzzle brick inner diameter d, wall thickness is 10～15mm, and it is a that its left end increases length than tapping muzzle brick L, is generally 350～550mm, it is b that its right-hand member increases length than tapping muzzle brick L, be generally 30～50mm, and the cover screw, as outer binding is installed; The outside diameter of internal fixation plate (6) and outer binding (7) is than the big 10～30mm of diameter of bore ￠ of the outer syphon of tap hole (2).
Preferably, the method for making internal fixation plate, outer binding is all to adopt the steel plate of 20～30mm to make, the cross section is a toroidal, its external diameter is than the big 80～100mm of the outer syphon diameter of bore of tap hole, and internal diameter is than the big 5～10mm of tapping muzzle brick inner diameter d, and outer binding inner hole sleeve screw.
The building method of steel tapping hole assembled outside converter of the present invention, step is as follows:
1) when converter lining is built the tap hole position by laying bricks or stones, measure tap hole installation site size, with the tap hole of overhead traveling crane, hang in the stove the external stove integral assembling, be put on the support platform of building usefulness in the stove by laying bricks or stones;
2) interim hook of welding on the furnace shell above the installation tap hole is hung chain block, and the eave tile of chain block connects the steel pipe of the internal fixation plate end of whole tap hole;
3) spur chain block on one side, on one side the artificial steel pipe that promotes the internal fixation plate end, whole tap hole is in place;
4) with behind the slit between magnesian ramming mass filling, tamping tap hole and the shell, outer binding is removed, the tap hole ring flange is installed, installation in the stove of tap hole.
Steel tapping hole assembled outside converter of the present invention is to be assembled into an integral body outside stove, realizes complete installation in the stove, compares with syphon in the tap hole (1), the outer syphon (2) of tap hole, the partial installation in stove of tapping muzzle brick (3), has the following advantages:
The invention has the beneficial effects as follows, outside stove, assemble, complete installation in the stove, easy construction, guaranteed the installation concentricity of syphon in the tap hole, the outer syphon of tap hole and tapping muzzle brick, and toast after the outer assembling of stove, make stopping composition discharge moisture, and sintering, when having stopped opening new furnace thus between tap hole syphon and the tapping muzzle brick wear steel, quality accident such as burn with anger, removed the major safety risks that tap hole falls material, comes off.Can shorten simultaneously the interior tap hole settling time of stove more than 3 hours.
Description of drawings
Fig. 1 is a steel tapping hole assembled outside converter structural representation of the present invention.
Fig. 2 is the structural representation of syphon (1) in the tap hole.
Fig. 3 is the structural representation of the outer syphon (2) of tap hole.Wherein A is a longitudinal diagram, and B is a drawing in side sectional elevation.
Fig. 4 is the structural representation of tapping muzzle brick (3).
Fig. 5 is for being steel tapping hole assembled outside converter scheme of installation of the present invention.
Wherein, 1, syphon in the tap hole, 2, the outer syphon of tap hole, 3, tapping muzzle brick, 4, stopping composition, 5, steel pipe, 6, internal fixation plate, 7, outer binding, 8, female mouthful, 9, rim of the mouth, 10, furnace shell, 11, interim hook, 12, chain block, 13, the tap hole ring flange, 14, magnesian ramming mass, 15, shaft thermofin fiberboard, 16, the flat magnesia brick of building of shaft permanent layer, 17, shaft working lining magnesia carbon brick.
Embodiment
The present invention is further described below in conjunction with accompanying drawing and embodiment, but be not limited thereto.
Embodiment 1
Steel tapping hole assembled outside converter of the present invention is successfully using on 120 tons of top and bottom combined blown converters of Laiwu iron and steel group silver mountain shaped steel company limited steelworks.As Fig. 1,2,3, shown in 4, a kind of steel tapping hole assembled outside converter, by syphon in the tap hole 1, the outer syphon 2 of tap hole, tapping muzzle brick 3, stopping composition 4, steel pipe 5, internal fixation plate 6, outer binding 7 is formed, the outer syphon 2 of syphon 1 and tap hole is sleeved on the tapping muzzle brick 3 in the tap hole, dock in female mouthful of syphon 1 rim of the mouth with the outer syphon 2 of tap hole in the tap hole, its circle hole centreline overlaps, its circumferential weld with tapping muzzle brick 3 adopts stopping composition 4 to fill up, tamping, steel pipe 5 of tapping muzzle brick 3 endoporus suits, internal fixation plate 6 suits, be welded on the steel pipe 5, be used for fixing syphon 1 in the tap hole, outer binding 7 suits, screw is fixed on steel pipe 5, make the outer syphon 2 of tap hole fastening, be made into an integral body, then evenly at 15～250 ℃, heat up continuously, toasted 16～24 hours.
Syphon 1 in the described tap hole, its transverse section is a rectangle, wall thickness 160mm, central aperture ￠ are 350mm, and, longitudinal cenlerline one horizontal along the hole is divided into four, code name is respectively A, B, C, D, behind mechanical pressing, assemble: earlier adopt high-temperature adhesives to bond together respectively A and B, C and D, guarantee that circle hole centreline overlaps, no boss (smooth) as if there being boss to adopt portable polishing machine to repair, and then with high-temperature adhesives A and B, C and D are bonded together, its brickwork joint is less than 1mm.Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa.
The outer syphon 2 of described tap hole, its transverse section is a rectangle, wall thickness 135mm, central aperture ￠ is 350mm, be divided into 6 joints along its length, every joint length 140mm, joint with save between mother-son mouth be connected, every joint is divided into two along the hole cross central line again, code name is respectively E, F, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together E and F earlier, guarantee that circle hole centreline overlaps, no boss (if there have boss to adopt portable polishing machine to repair to be smooth), its brickwork joint is less than 1mm.Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, (1400 ℃ * 0.5h) 〉=12 Mpa of folding strengths.
Described tapping muzzle brick 3, its section is an annular, and outer diameter D is 280mm, and inner diameter d is 150mm, length L is 1450mm, divide equally 7 joints along the hole cross central line, every joint 207mm adopts the mother-son mouth mode of connection, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, no boss (if there have boss to adopt portable polishing machine to repair to be smooth), and its brickwork joint is less than 1mm.Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa.
Described steel pipe 5, its external diameter are 146, than the little 4mm of tapping muzzle brick inner diameter d, wall thickness is 10～15mm, and it is 500mm that its left end increases length a than tapping muzzle brick L, and it is 30mm that its right-hand member increases length b than tapping muzzle brick L, and the cover screw is as outer binding 7 is installed.
Described internal fixation plate 6, outer binding 7 all are to be made by general steel plate, and steel plate thickness is 20mm.Wherein internal fixation plate 6, interior boring ratio steel pipe 5 big 3mm, and the endoporus of outer binding 7 is a screw hole, cooperates the screw of steel pipe 5, is used to install outer binding 7.The outside diameter of internal fixation plate 6 and outer binding 7 is than the big 20mm of diameter of bore ￠ of the outer syphon 2 of tap hole.
A kind of manufacture method of steel tapping hole assembled outside converter, step is as follows:
1) syphon 1 in the assembling tap hole is divided into two along the hole cross central line, and code name is respectively E, F, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, no boss (if there have boss to adopt portable polishing machine to repair to be smooth), and its brickwork joint is less than 1mm.Its diameter of bore ￠ is 350mm, promptly than the big 70mm of tapping muzzle brick outer diameter D; Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, (1400 ℃ * 0.5h) 〉=12 Mpa of folding strengths.
2) the outer syphon 2 of assembling tap hole, its transverse section is a rectangle, be divided into 6 joints along its length, every joint length 140mm, joint with save between be connected with mother-son mouth, every joint is divided into two along the hole cross central line again, code name is respectively E, F, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together E and F earlier, guarantee that circle hole centreline overlaps, no boss (if there have boss to adopt portable polishing machine to repair to be smooth), its brickwork joint is less than 1mm.Its diameter of bore ￠ is 350mm, and is identical with syphon in the tap hole (1), promptly than the big 70mm of tapping muzzle brick outer diameter D; Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa.
3) assembling tapping muzzle brick 3, its section is an annular, and outer diameter D is 280mm, and inner diameter d is 150mm, length L is 1450mm, divide equally 7 joints along the hole cross central line, every joint 207mm adopts the mother-son mouth mode of connection, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, no boss (if there have boss to adopt portable polishing machine to repair to be smooth), and its brickwork joint is less than 1mm.Its material is the magnesium carbonaceous, and physical and chemical index is: MgO 〉=76%, and C 〉=14%, volume density 〉=2.93g/cm3, apparent porosity≤4%, cold crushing strength 〉=40Mpa, folding strength (1400 ℃ * 0.5h) 〉=12Mpa.
4) make steel pipe 5, its external diameter is 146, and than the little 4mm of tapping muzzle brick inner diameter d, wall thickness is 12mm, and it is 500mm that its left end increases length a than tapping muzzle brick L, and it is 30mm that its right-hand member increases length b than tapping muzzle brick L, and the cover screw, as outer binding 7 is installed.The outside diameter of internal fixation plate 6 and outer binding 7 is than the big 20mm of diameter of bore ￠ of the outer syphon 2 of tap hole.
Outer diameter of steel pipes is than the little 1～2mm of tapping muzzle brick inner diameter d, and it is a that its left end increases length than tapping muzzle brick L, is generally 350～550mm, and it is b that its right-hand member increases length than tapping muzzle brick L, is generally 30～50mm, and the cover screw, as outer binding is installed;
6) overall package is inserted in steel pipe 5 in muzzle brick 3 endoporus of must tapping after the assembling earlier, and its left end stretches out tapping muzzle brick 3 about 500mm, and it is 30mm that right-hand member stretches out the muzzle brick 3 of tapping; Again tapping muzzle brick 3 left ends of dress steel pipe in syphon 1 is sleeved in the tap hole after the assembling, tapping muzzle brick 3 right-hand members of dress steel pipe in the outer syphon 2 of every joint tap hole after the assembling is sleeved on successively, syphon 1 is connected with the mother-son mouth that is combined into of the outer syphon 2 of tap hole in the tap hole, the assurance circle hole centreline overlaps, and its brickwork joint is less than 1mm; The peripheral clearance of syphon 1 and outer syphon 2 and tapping muzzle brick 3 in tap hole, employing magnesian ramming mass 14 as stopping composition fill up, tamping; Weld internal fixation plate 6 then in the suit tap hole on the steel pipe 5 of the left side of syphon 1, binding 7 outside installing on the steel pipe 5 of the right side of syphon 2 outside the suit tap hole carries out fastening; At last 15～250 ℃ evenly, heat up continuously, baking 16 is little, the steel tapping hole assembled outside converter manufacturing is finished.
As shown in Figure 5, the installation method of steel tapping hole assembled outside converter of the present invention, step is as follows:
1) when converter lining is built the tap hole position by laying bricks or stones, measure tap hole installation site size, with the tap hole of overhead traveling crane, hang in the stove the external stove integral assembling, be put on the support platform of building usefulness in the stove by laying bricks or stones;
2) interim hook 11 of welding on the furnace shell above the installation tap hole is hung chain block 12, and the eave tile of chain block 12 connects the steel pipe of the internal fixation plate 6 of whole tap hole;
3) spur chain block 12 on one side, on one side the artificial steel pipe 5 that promotes internal fixation plate 6 ends, whole tap hole is in place;
4) with behind the slit between syphon 2 and the shell 11 in magnesian ramming mass 14 fillings, the tamping tap hole, outer binding 7 is removed, tap hole ring flange 13 is installed, installation in the stove of tap hole.
The present invention adopts external stove integral assembling, baking, and complete installation in the stove has improved the installation quality of converter taphole, tap hole syphon when having solved opening new furnace, tapping muzzle brick, shaft brick combining site wear steel, quality problems such as burn with anger.Under equal execution conditions, adopt the present invention, can shorten the interior tap hole settling time of stove more than 3 hours.
Embodiment 2
Other is with embodiment 1, and difference is:
Syphon 1 in the tap hole, diameter of bore ￠ is 400mm, diameter of bore ￠ is than the big 60mm of tapping muzzle brick outer diameter D.The outer syphon 2 of tap hole is divided into 9 joints along its length, every joint length 120, and it is identical to connect in its diameter of bore ￠ and the tap hole syphon 1 with mother-son mouth between joint and the joint, promptly than the big 100mm of muzzle brick outer diameter D that taps;
Described tapping muzzle brick 3, its section is an annular, and outer diameter D is 300mm, and inner diameter d is 135mm, and length L is 1600mm, divides equally 8 joints along the hole cross central line, every joint length is 200mm, adopts the mother-son mouth mode of connection.
Described steel pipe 5, its external diameter 132mm, wall thickness are 10mm, it is 400mm that its left end increases length than tapping muzzle brick L; It is 40mm and cover screw that its right-hand member increases length than tapping muzzle brick L, is used to install outer binding.
Described internal fixation plate 6, outer binding 7 all are to be made by general steel plate, and section is an annular, and steel plate thickness is 30mm.Wherein the diameter of bore of internal fixation plate 6 is than the big 2mm of steel pipe 5 external diameters, and the endoporus of outer binding 7 is a screw hole, cooperates the screw of steel pipe 5, is used to install outer binding.The outside diameter of internal fixation plate 6 and outer binding 7 is than the big 12mm of diameter of bore ￠ of the outer syphon 2 of tap hole.
Claims (10)
1. steel tapping hole assembled outside converter, form by syphon in the tap hole (1), the outer syphon (2) of tap hole, tapping muzzle brick (3), steel pipe (5), internal fixation plate (6), outer binding (7), all there is circular hole at the center of the outer syphon (2) of syphon (1) and tap hole in the tap hole, interior syphon (1) of tap hole and the outer syphon (2) of tap hole are sleeved on the tapping muzzle brick (3), and its circumferential weld employing stopping composition (4) with tapping muzzle brick (3) fills up, tamping; Tapping muzzle brick (a 3) steel pipe of endoporus suit (5), internal fixation plate (6) suit, be welded on the steel pipe (5), be used for fixing syphon (1) in the tap hole, outer binding (7) suit, screw are fixed on steel pipe (5), make the outer syphon (2) of tap hole fastening.
2. steel tapping hole assembled outside converter as claimed in claim 1 is characterized in that, dock in female mouthful of syphon (1) rim of the mouth with the outer syphon (2) of tap hole in the tap hole, and its circle hole centreline overlaps.
3. steel tapping hole assembled outside converter as claimed in claim 1, it is characterized in that, syphon (1) in the described tap hole, its transverse section is a rectangle, wall thickness 120～200mm, central aperture is ￠, along the hole laterally, longitudinal cenlerline one is divided into four, code name is respectively A, B, C, D, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together respectively A and B, C and D earlier, the assurance circle hole centreline overlaps, inner wall smooth; And then with high-temperature adhesives A and B, C and D are bonded together, its brickwork joint is less than 1mm, and diameter of bore ￠ is 350～400mm, and diameter of bore ￠ is than the big 60～100mm of tapping muzzle brick outer diameter D;
The outer syphon (2) of described tap hole, its transverse section is a rectangle, and wall thickness 120～160mm is divided into 5～8 joints along its length, every joint length 120～200mm, joint with save between be connected with mother-son mouth, every joint is divided into two along the hole cross central line again, code name is respectively E, F, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, inner wall smooth, and its brickwork joint is less than 1mm; Its diameter of bore ￠ is identical with syphon (1) in the tap hole; Its material is the magnesium carbonaceous.
4. steel tapping hole assembled outside converter as claimed in claim 1 is characterized in that, described tapping muzzle brick (3), its section is an annular, outer diameter D is 260～300mm mm, and inner diameter d is 135～165mm, and length L is 1300～1600mm, divide equally 5～9 joints along the hole cross central line, every joint length is 200～250mm, adopts the mother-son mouth mode of connection, assembles behind mechanical pressing: adopt high-temperature adhesives to bond together, the assurance circle hole centreline overlaps, inner wall smooth; Its brickwork joint is less than 1mm.
5. steel tapping hole assembled outside converter as claimed in claim 1 is characterized in that, described steel pipe (5), and its external diameter is than the little 2～5mm of tapping muzzle brick inner diameter d, and wall thickness is 10～15mm, and it is a that its left end increases length than tapping muzzle brick L; It is b and cover screw that its right-hand member increases length than tapping muzzle brick L, is used to install outer binding; Described a is 350～550mm, and described b is 30～50mm.
6. steel tapping hole assembled outside converter as claimed in claim 1 is characterized in that, described internal fixation plate (6), outer binding (7) all are to be made by general steel plate, and section is an annular, and steel plate thickness is 20～30mm; The diameter of bore of internal fixation plate (6) is than the big 2～3mm of steel pipe (5) external diameter, and the endoporus of outer binding (7) is a screw hole, cooperates the screw of steel pipe (5), is used to install outer binding; The outside diameter of internal fixation plate (6) and outer binding (7) is than the big 10～30mm of diameter of bore ￠ of the outer syphon of tap hole (2).
7. the manufacture method of a steel tapping hole assembled outside converter as claimed in claim 1, step is as follows:
1) steel pipe (5) is inserted in tapping muzzle brick (3) endoporus after the assembling;
2) tapping muzzle brick (3) left end of dress steel pipe (5) in syphon (1) is sleeved in the tap hole after the assembling, tapping muzzle brick (3) right-hand member of dress steel pipe (5) in the outer syphon (2) of every joint tap hole after the assembling is sleeved on successively, syphon (1) is connected with the mother-son mouth that is combined into of the outer syphon (2) of tap hole in the tap hole, the assurance circle hole centreline overlaps, and its brickwork joint is less than 1mm;
3) peripheral clearance of the outer syphon (2) of syphon (1) and tap hole and the muzzle brick (3) of tapping in tap hole, employing magnesian ramming mass (4) as stopping composition fill up, tamping;
4) steel pipe (5) of the left side of syphon (1) is gone up welding internal fixation plate (6) in the suit tap hole,
5) outside the suit tap hole, install on the steel pipe of the right side of syphon (2) outside binding (7), carry out fastening;
6) 15～250 ℃ of even, continuous intensifications, baking 16 hours, the steel tapping hole assembled outside converter manufacturing was finished.
8. the manufacture method of steel tapping hole assembled outside converter as claimed in claim 7 is characterized in that, steel pipe in the step 1) (5) left end stretches out tapping muzzle brick (3) 350～550mm, and right-hand member stretches out tapping muzzle brick (3) 30～50mm.
9. the manufacture method of steel tapping hole assembled outside converter as claimed in claim 7, it is characterized in that, the method of syphon is in the assembling tap hole, the interior syphon of tap hole is horizontal along the hole, longitudinal cenlerline one is divided into four, code name is respectively A, B, C, D, behind mechanical pressing, assemble: earlier adopt high-temperature adhesives to bond together respectively A and B, C and D, the assurance circle hole centreline overlaps, inner wall smooth, and then A and B, C and D are bonded together with high-temperature adhesives, its brickwork joint is less than 1mm, and diameter of bore ￠ is than the big 60～100mm of tapping muzzle brick outer diameter D;
The method of the outer syphon of assembling tap hole is, syphon is divided into 5～8 joints along its length in the tap hole, every joint length 120～200mm, joint with save between mother-son mouth be connected, every joint is divided into two along the hole cross central line again, code name is respectively E, F, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, guarantee that circle hole centreline overlaps inner wall smooth, its brickwork joint is less than 1mm, and diameter of bore ￠ is than the big 60～100mm of tapping muzzle brick outer diameter D;
The method of assembling tapping muzzle brick is, tapping muzzle brick inner diameter d is 135～165mm, outer diameter D is 260～300mm, and length L is 1300～1600mm, divides equally 5～9 joints along the hole cross central line, every joint length 200～250mm, adopt the mother-son mouth mode of connection, behind mechanical pressing, assemble: adopt high-temperature adhesives to bond together, guarantee that circle hole centreline overlaps, inner wall smooth, its brickwork joint is less than 1mm;
The method of making steel pipe is, outer diameter of steel pipes is than the little 2～5mm of tapping muzzle brick inner diameter d, wall thickness is 10～15mm, it is a that its left end increases length than tapping muzzle brick L, be generally 350～550mm, it is b that its right-hand member increases length than tapping muzzle brick L, is generally 30～50mm, and the cover screw is as outer binding is installed; The outside diameter of internal fixation plate (6) and outer binding (7) is than the big 10～30mm of diameter of bore ￠ of the outer syphon of tap hole (2);
The method of making internal fixation plate, outer binding is, all adopt the steel plate of 20～30mm to make, the cross section is a toroidal, and its external diameter is than the big 80～100mm of the outer syphon diameter of bore of tap hole, internal diameter is than the big 5～10mm of tapping muzzle brick inner diameter d, and outer binding inner hole sleeve screw.
10. the building method of steel tapping hole assembled outside converter, step is as follows:
1) when converter lining is built the tap hole position by laying bricks or stones, measure tap hole installation site size, with the tap hole of overhead traveling crane, hang in the stove the external stove integral assembling, be put on the support platform of building usefulness in the stove by laying bricks or stones;
2) interim hook of welding on the furnace shell above the installation tap hole is hung chain block, and the eave tile of chain block connects the steel pipe of the internal fixation plate end of whole tap hole;
3) spur chain block on one side, on one side the artificial steel pipe that promotes the internal fixation plate end, whole tap hole is in place;
4) with behind the slit between magnesian ramming mass filling, tamping tap hole and the shell, outer binding is removed, the tap hole ring flange is installed, installation in the stove of tap hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100177570A CN101665853B (en) | 2009-08-28 | 2009-08-28 | Steel tapping hole assembled outside converter and masonry method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100177570A CN101665853B (en) | 2009-08-28 | 2009-08-28 | Steel tapping hole assembled outside converter and masonry method thereof |
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| CN101665853A true CN101665853A (en) | 2010-03-10 |
| CN101665853B CN101665853B (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100177570A Expired - Fee Related CN101665853B (en) | 2009-08-28 | 2009-08-28 | Steel tapping hole assembled outside converter and masonry method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080137A (en) * | 2010-12-01 | 2011-06-01 | 中冶南方工程技术有限公司 | Design method of highest tap hole position of converter |
| CN102719592A (en) * | 2011-03-30 | 2012-10-10 | 鞍钢股份有限公司 | Method for bricklaying furnace lining of large converter |
| CN110863081A (en) * | 2019-11-20 | 2020-03-06 | 北京联合荣大工程材料股份有限公司 | Repairing device and repairing method for converter steel tapping hole |
| CN111763798A (en) * | 2020-06-18 | 2020-10-13 | 钢铁研究总院 | Converter tapping hole, converter and converter building and tapping method |
| CN112573902A (en) * | 2020-12-02 | 2021-03-30 | 北京联合荣大工程材料股份有限公司 | Long-life converter tapping hole |
| CN114058780A (en) * | 2021-12-01 | 2022-02-18 | 山东钢铁集团日照有限公司 | Device and method for improving tapping reliability of large converter |
-
2009
- 2009-08-28 CN CN2009100177570A patent/CN101665853B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080137A (en) * | 2010-12-01 | 2011-06-01 | 中冶南方工程技术有限公司 | Design method of highest tap hole position of converter |
| CN102080137B (en) * | 2010-12-01 | 2013-03-13 | 中冶南方工程技术有限公司 | Design method of highest tap hole position of converter |
| CN102719592A (en) * | 2011-03-30 | 2012-10-10 | 鞍钢股份有限公司 | Method for bricklaying furnace lining of large converter |
| CN110863081A (en) * | 2019-11-20 | 2020-03-06 | 北京联合荣大工程材料股份有限公司 | Repairing device and repairing method for converter steel tapping hole |
| CN111763798A (en) * | 2020-06-18 | 2020-10-13 | 钢铁研究总院 | Converter tapping hole, converter and converter building and tapping method |
| CN112573902A (en) * | 2020-12-02 | 2021-03-30 | 北京联合荣大工程材料股份有限公司 | Long-life converter tapping hole |
| CN114058780A (en) * | 2021-12-01 | 2022-02-18 | 山东钢铁集团日照有限公司 | Device and method for improving tapping reliability of large converter |
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| Publication number | Publication date |
|---|---|
| CN101665853B (en) | 2011-04-06 |
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