CN103789471A - Multi-corner angle convex polygon-structure metallurgy waste residue tank and manufacturing method thereof - Google Patents
Multi-corner angle convex polygon-structure metallurgy waste residue tank and manufacturing method thereof Download PDFInfo
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- CN103789471A CN103789471A CN201210425979.8A CN201210425979A CN103789471A CN 103789471 A CN103789471 A CN 103789471A CN 201210425979 A CN201210425979 A CN 201210425979A CN 103789471 A CN103789471 A CN 103789471A
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Abstract
Through a welding fabrication method, 3-14 unrolled alloy steel- or carbon steel-made wide thick plates as residue tank walls and residue tank bottom are welded to form the multi-corner angle convex polygon-structure metallurgy waste residue tank and the multi-corner angle convex polygon-structure metallurgy waste residue tank has a multi-corner angle convex polygonal trunnion symmetrical welded structure. According to the novel-structure metallurgy waste residue tank, the finished hot-rolled wide thick plates are welded to form the tank walls by the welding technology. The manufacturing method simplifies manufacturing processes, shortens a manufacturing period, greatly reduces a manufacturing cost, reduces environmental pollution, obviously improves high-temperature deformation resistance and high-temperature cracking resistance of the metallurgy waste residue tank and realizes a high cost performance. The multi-corner angle convex polygon-structure metallurgy waste residue tank has good solderability, large restoration potential and a long service life. The multi-corner angle convex polygon-structure metallurgy waste residue tank eliminates common hidden troubles such as abnormal cracking of the residue tank on the production site.
Description
Technical field
The present invention relates to metallurgical equipment, particularly, the present invention relates to a kind of multi-angular convex polygon axially symmetric structure metallurgical slag tank and manufacture method thereof for field of metallurgy.
Background technology
Since 1870, in world's steel-making history, all metallurgical slag tanks are all to come from cast form.It and is all round: cylindric, rice bowl shape or round table-like etc.Adopt above-mentioned traditional casting technique manufacture metallurgical slag tank and method existing problems thereof as follows:
One. contaminate environment.As everyone knows, casting is environmental issue maximum in field of machining.The casting of slag ladle is like this equally.For example, in the process of the remaining liquid steel slag of the casting of tumbling to sand pit or scum, a large amount of dust flue gas ascensions, fills the air space, and operating environment is severe; On-the-spot pollution may cause electrical equipment Frequent Troubles; The emission concentration of obnoxious flavour, organic carbon (TOC) and heavy metal (cadmium, chromium, copper, mercury, nickel, lead, zinc) in slag and waste gas is higher, has a strong impact on the healthy of employee.Thereby the problem of environmental pollution being brought by the casting of slag ladle is very large.
Two. there is potential safety hazard.Because of casting slag ladle crystal grain thick (because of without overheated press working compared with common rolled steel, crystal grain is still virgin state), thickness inhomogeneous (due to cooling conditions difference), large-scale metallurgical apparatus for casting is inevitably existed as the various defects of shrinkage cavity and porosity, pore, segregation, crackle, nonmetal inclusion, hot tearing, cold cracking etc., often there is slag ladle cracking in the production scene of manufacture, use procedure, cause potential safety hazard to production and operator.
Three. for these reasons, large-scale metallurgical apparatus for casting is inevitably existed as the various defects of shrinkage cavity and porosity, pore, segregation, crackle, nonmetal inclusion, hot tearing, cold cracking etc., have a strong impact on its use properties.
Four. for these reasons, the weldability of casting slag ladle is poor, recoverability is poor, and maintenance cost is large.And potential safety hazard is large, bring threat to production safety.
Five. work-ing life is short, and described slag ladle both must be scrapped after using the several months.On the other hand, because slag ladle usage quantity is very large, for example, take certain large-scale iron and steel enterprise in China as example, only the slag ladle of 5.3 cubic meters capacity needs more than 100 of year consumptions in recent years, causes the use cost of current casting slag ladle very big, is unfavorable for cost efficiency.
The inventor has broken through traditional Technologies And Conceptions and technical difficulty, successfully develops and applied for first welded construction slag ladle patented technology scheme in the world in 2008.Replace castmethod with welding process.
But existing problems are:
(1) swaging process cost are somewhat expensive.Take 60 tons of large slag ladles as example.Market is at least 6000～8000 yuan/ton of steel plate thickness≤80mmm swaging process cost, so only just >=40 ten thousand yuan/every of swaging process cost, and disregard
When outer committee processing, road transports and labour cost etc. back and forth.
As steel plate thickness >=80mm, swaging is taken more expensively, not only needs special large-scale form-pressing machine (capacity >=120mm, wide >=8000mm), and, slag ladle wall is long-pending larger, and steel plate thickness and size are just larger, just harsher to the requirement of swaging processing units, in the time that size arrives some amount greatly (as the large slag ladle of 33 cubes of 60 tons of weights), the work being difficult to exactly, unless special special large-scale volume press, but (also there is no at present this super-huge volume press) well imagined in cost and market existence.
When the thicker volume of steel plate pressure, cause steel plate waste larger.Steel plate is thicker, and beginning pressure side is stung steel amount just must be more.Press 80mm Plate Steel for volume, what initial and end at least needed reserved 400～600mm stings steel length, altogether will waste the long steel plate of 800～1200mm, just can complete swaging operation.Every like this volume presses a block plate will waste the steel of several tons.If volume pressure >=80mm steel plate, utilization ratio is lower, and wastage cannot be accepted.
Plate Steel swaging process operation environment is severe, not only difficult but also have a trouble.When Plate Steel swaging (particularly steel alloy), when temperature and pressure and hot pressing, steel plate entirety must be heated to respectively to 600 ℃～1000 ℃, could implement volume and press, otherwise, the defect such as can crack, scrap even.In addition, more trouble, steel plate is thicker, and the strength of materials is higher, and the temperature of heating just must be higher, both wasted energy like this, increases the weight of again operative employee's labour intensity and degradation manipulation environment.
In addition, the use shortcoming of above-mentioned welded construction slag ladle is: although work-ing life is longer than former casting slag ladle, and, arrived end of life and also had the Problem of Failure such as distortion and cracking.Find through follow-up study, high temperature deformation resistance remains a technical bottleneck problem.
In a word, the welded construction metallurgical slag tank patented product of former invention, is applicable to novel little slag ladle (5.6 cubes/20 tons), is suitable for manufacturing the little slag ladle of circular arc welded construction.But, for medium-sized and large-scale slag ladle, when slag ladle wall is long-pending be greater than 18 cubes above particularly 33 cubes and more than, if be subject to the restriction of circular arc theory, new problem has occurred again again: large welded structures metallurgical slag tank still must improve aspect manufacturing " circular arc roll bending Profile procoess " in link and " the anti-indent shrinkage strain of high temperature " two.
In sum, above-mentioned improved slag ladle still has problems as follows:
Manufacturing process is more loaded down with trivial details, and manufacturing schedule is longer, and manufacturing cost is larger, wastes energy, and increases the weight of operative employee's labour intensity and degradation manipulation environment.
Summary of the invention
For overcoming described problem, the object of the invention is to, a kind of multi-angular convex polygon symmetrical structure metallurgical slag tank is provided.
Object of the present invention is again, and a kind of manufacture method of multi-angular convex polygon symmetrical structure metallurgical slag tank is provided.
The technical scheme of multi-angular convex polygon structure metallurgical slag tank of the present invention is as follows:
A kind of multi-angular convex polygon structure metallurgical slag tank, described metallurgical slag tank be one be welded, for the treatment of the pot container of molten state slag or scum, it is characterized in that, described metallurgical slag tank tank skin system splices and is welded into by non-volume pressure 3～14 blocks of " L " type steel alloys or carbon steel Wide and Thick Slab, and described slag ladle tank body cross section is multi-angular convex polygon.
According to the multi-angular convex polygon structure of one of the present invention metallurgical slag tank, it is characterized in that: described metallurgical slag tank is the up big and down small prismoid of sectional dimension.
According to the multi-angular convex polygon structure of one of the present invention metallurgical slag tank, it is characterized in that: the longitudinal spliced weld seam of described multi-angular convex polygon structure slag ladle tank skin is formed in the steel plate plane that forms described convex polygon structure slag ladle tank skin, the outside dimpling of described assembled weld seam.
According to the multi-angular convex polygon structure of one of the present invention metallurgical slag tank, it is characterized in that: " L " shaped steel plate splicing welding joint of described slag ladle tank skin adopts " X " type groove, and described " X " type groove is asymmetric " X " type groove that tank skin inwall groove size is greater than tank skin outer wall groove size.
According to the multi-angular convex polygon structure of one of the present invention metallurgical slag tank, it is characterized in that: described slag ladle tank body volume >=18 cube.
According to the multi-angular convex polygon structure of one of the present invention metallurgical slag tank, it is characterized in that: described slag ladle tank skin forms the plane of symmetry with two gudgeon medullary rays and the tank mouth medullary ray of slag ladle, be axial plane symmetrical structure, the corner angle number of described slag ladle tank skin equates with polygonal limit number and is even numbers.
According to the multi-angular convex polygon structure of one of the present invention metallurgical slag tank, it is characterized in that: the slag discharging port inner side of described slag ladle tank body adopts receives cinder notch design, is designed to corner angle or the gusset of del for rewinding in described slag ladle tank skin pour spout inner side.
Described metallurgical slag tank, forms the plane of symmetry with two gudgeon medullary rays of slag ladle and tank mouth medullary ray, and tank skin is axial plane symmetrical structure, and tank skin corner angle number equates with polygonal limit number and be even numbers, and scope is generally 4～16.Be that tank skin is that corner angle number equates and is even numbers with polygonal limit number, be the symmetrical structure of convex polyhedron.
When long-pending >=30 cubic inches of slag ladle wall, adopt and receive cinder notch design in the slag discharging port inner side of multi-angular convex polygon tank skin, be designed to del rewinding corner angle (gusset) in slag ladle pour spout inner side.
According to the present invention, waypoint backfin limit is that, first by Wide and Thick Slab cutting stock, then, use simple " waypoint backfin limit method " replaces traditional " volume pressing formation method ", Wide and Thick Slab is pressed into " L " shape, rather than arc.Save steel plate " volume pressing formation " process of processing charges costliness.Waypoint presses fold method very simple, and some compression mould can be made by oneself.Feature: steel plate need not be pressed into arc, has saved expensive swaging process cost; Road transport charge back and forth while having saved the processing of outer committee; Be not subject to by the restriction of laminated steel thickness and size; Without special large-scale form-pressing machine; Slag ladle wall is long-pending larger, and advantage is more obvious; Flanging is not wasted steel plate; Will steel plate entirety not heat; Do not waste energy; Operating environment close friend, alleviates operative employee's labour intensity.
According to the present invention, flanging steel plate is assembled into multi-angular convex polygon tank skin.Feature: assemble with axial plane symmetry.The problems such as in steel plate when assembling that is converted into " L " shape, be conducive to corner angle and weld seam to stagger, and both fillet weld larger difficulty can be become to simple flat weld, the stress concentration that also can avoid corner angle seamed edge to overlap with weld seam bringing afterwards." L " size when concrete flanging and flanging angle will be determined with practical set volume requirement and welding procedure technical requirements or easy to operate condition.
The manufacture method technical scheme of a kind of multi-angular convex polygon structure metallurgical slag tank of the present invention is as follows:
A kind of manufacture method of multi-angular convex polygon structure metallurgical slag tank, described metallurgical slag tank be one be welded, for the treatment of the pot container of molten state slag or scum, it is characterized in that, described metallurgical slag tank tank skin system splices and is welded into by non-volume pressure 3～14 blocks of " L " type steel alloys or carbon steel Wide and Thick Slab, described slag ladle tank body cross section is multi-angular convex polygon
Described method comprises the steps:
The processing of steel plate cutting-groove processing-flanging-tank skin welding-thermal treatment-gudgeon portion and installation-finished product.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, it is characterized in that, flanging-tank skin welding of described multi-angular convex polygon structure slag ladle adopts waypoint backfin limit method, first by Wide and Thick Slab cutting stock, then, each Wide and Thick Slab is pressed into " L " shape, locates the longitudinal corner angle of knuckle as described multi-angular convex polygon structure slag ladle tank skin using " L " of described each Wide and Thick Slab of being pressed into " L " shape, be welded into each other the closed tank body of the slag ladle of multi-angular convex polygon structure.
" L " of " L " template locates concrete angle and the concrete size of knuckle and should determine according to the volume size of slag ladle.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, it is characterized in that, in the time that " L " shaped steel plate is assembled into tank skin, form the steel plate splicing groove design of slag ladle tank skin, between described steel plate, splice groove design asymmetrical " X " type groove,, described " X " type groove is asymmetric " X " type groove that tank skin inwall groove size is greater than tank skin outer wall groove size.
Thus, form the extremely strong groove combination of the recessive anti-indent shrinkage of postwelding.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, it is characterized in that, described slag ladle tank skin forms the plane of symmetry with two gudgeon medullary rays and the tank mouth medullary ray of slag ladle, be axial plane symmetrical structure, the corner angle number of described slag ladle tank skin equates with polygonal limit number and is even numbers, and the corner angle number of described slag ladle tank skin is in 4～16 scopes.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, it is characterized in that the Welding Process Design of described slag ladle tank skin, the first inwall groove of described " X " type groove of welding, " X " type groove outer wall groove described in rear welding.
Thus, after making to have welded, weld seam inside just forms a kind of reserved reversible deformation and possesses the recessive force structure of very strong high temperature resistance tank skin indent shrinkage strain performance.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, it is characterized in that, adopt and receive cinder notch design in the slag discharging port inner side of multi-angular convex polygon tank skin, be designed to del rewinding corner angle or gusset in slag ladle pour spout inner side.
Thus, while being converted into the steel plate assembling of " L " shape, be conducive to corner angle and weld seam to stagger, both fillet weld larger difficulty can be become to simple flat weld, simplify welding procedure difficulty, also can avoid the problems such as stress concentration that corner angle seamed edge brings after overlapping with weld seam." L " size when concrete flanging and flanging angle will be determined with practical set volume requirement and welding procedure technical requirements or easy to operate condition.
" L " of " L " template locates concrete angle and the concrete size of knuckle and should determine according to the volume size of slag ladle.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, it is characterized in that, in the time that " L " shaped steel plate is assembled into tank skin, form the steel plate splicing groove design of slag ladle, between described steel plate, splice groove design asymmetrical " X " type groove,, described " X " type groove is asymmetric " X " type groove that tank skin inwall groove size is greater than tank skin outer wall groove size.
Thus, form the extremely strong groove combination of the recessive anti-indent shrinkage of postwelding.
For super-huge slag ladle, if circular arc tank skin is transformed into after multi-angular convex polygon tank skin, because of the polygonal limit of tank mouth straight and wide, be different from circular arc limit completely, so, in technological process, just there will be slag because action of gravity is with the diversity track phenomenon of dishing out toppling over, be difficult to like this close up, be not easy to award slag processing.For this reason, topple over slag limit at multi-angular convex polygon tank skin, inner side is designed to del rewinding corner angle (gusset),, described rewinding corner angle (gusset) are convex or gusset shape is arranged at slag ladle mouth inner side, the two side edgefold weld seams from a tank skin limit that forms convex polygon slag ladle tilt towards this flanging tank mouth midline, flow out, and can not dish out with diversity track along the two side edgefold welderings on tank skin limit with the slag that makes to topple over towards this tank mouth limit centre.Utilize like this closing in effect of corner angle (gusset), just can realizing slag, to topple over operating process very smooth, makes to award slag effect identical with circular arc tank skin.
According to the manufacture method of convex polygon structure metallurgical slag tank of the present invention, adopt waypoint backfin limit.First, by Wide and Thick Slab cutting stock, then, replace traditional " volume pressing formation method " with simple " waypoint backfin limit method ", Wide and Thick Slab is pressed into " L " shape, rather than arc.
Thus, according to the present invention, the volume pressing plate that is absorbed in unfavorable circumstances is welded to circular slag ladle by adopting flanging method of substitution processing means, researched and developed non-volume pressure Wide and Thick Slab Polygons welded construction metallurgical slag tank.Make the manufacture of non-volume pressure Wide and Thick Slab Polygons welded construction slag ladle not be subject to the restriction of slag ladle wall long-pending and plate size and thickness.In addition, waypoint presses fold method very simple, and some compression mould can be made by oneself.Feature: steel plate need not be pressed into arc, has saved expensive swaging process cost; Road transport charge back and forth while having saved the processing of outer committee; Be not subject to by the restriction of laminated steel thickness and size; Without special large-scale form-pressing machine; Slag ladle wall is long-pending larger, and advantage is more obvious; Flanging is not wasted steel plate; Will steel plate entirety not heat; Do not waste energy; Operating environment close friend, alleviates operative employee's labour intensity.
Flanging steel plate is assembled into multi-angular convex polygon tank skin.Feature: assemble with axial plane symmetry.While being converted into the steel plate assembling of " L " shape, be conducive to corner angle and weld seam to stagger, both fillet weld larger difficulty can be become to simple flat weld, simplify welding procedure difficulty, also can avoid the problems such as stress concentration that corner angle seamed edge brings after overlapping with weld seam." L " size when concrete flanging and flanging angle will be determined with practical set volume requirement and welding procedure technical requirements or easy to operate condition.
Accompanying drawing explanation
Fig. 1 is convex polygon structure metallurgical slag tank stereographic map of the present invention.
Fig. 2 is convex polygon structure metallurgical slag tank manufacture method schema of the present invention.
Fig. 3 a, b, c is respectively front view, vertical view and the left view of convex polygon structure metallurgical slag tank of the present invention.
Fig. 4 is convex polygon structure metallurgical slag tank thermal treatment process figure of the present invention.
Fig. 5 a, 5b is respectively convex polygon structure metallurgical slag tank of the present invention " X " type groove schematic diagram.
Fig. 6 is convex polygon structure metallurgical slag tank of the present invention is designed to del rewinding corner angle (gusset) schematic diagram in slag ladle pour spout inner side.
Fig. 7 is the steel plate flanging schematic diagram of " L " shape.
In figure, 1 is corner angle, and 2 is del rewinding corner angle (gusset), and 3 is " X " type groove, and 4 for being converted into the steel plate of " L " shape, and 5 is the inwall groove of " X " type groove, and 6 is " X " type groove outer wall groove, and 7 is gudgeon.
Embodiment
Below, for embodiment, illustrate the present invention.
Embodiment 1
A kind of novel texture metallurgical slag tank, described metallurgical slag tank is by welding forming method, is welded with non-volume pressure 3～14 blocks of Wide and Thick Slab steel alloys or carbon steel as slag ladle tank skin and slag ladle bottom, described novel texture metallurgical slag tank is multi-angular convex polygon structure.
Described metallurgical slag tank manufacturing process general condensed summary is as follows:
Selection or material type selecting: select carbon steel, steel alloy, for example as 20g, Q235,25#, Q345(16Mn), SM490, SM400, SS400 etc.
Cutting stock: consider multi-angular convex polygon symmetrical structure feature (rotational symmetry or body symmetry), form the plane of symmetry with gudgeon medullary ray and the tank mouth medullary ray of slag ladle, tank body is up big and down small prismoid, is axial plane symmetrical structure.Corner angle number equates with polygonal limit number and for even numbers, scope is 8～12.
Waypoint backfin limit.First, by steel plate cutting stock, then, replace traditional " volume pressing formation method " with simple " waypoint backfin limit method ", the steel plate of cutting stock is pressed into " L " shape.Waypoint presses fold method very simple, and some compression mould can be made by oneself.Feature: steel plate need not be pressed into arc, has saved expensive swaging process cost; Road transport charge back and forth while having saved the processing of outer committee; Be not subject to by the restriction of laminated steel thickness and size; Without special large-scale form-pressing machine; Slag ladle wall is long-pending larger, and advantage is more obvious; Flanging is not wasted steel plate; Will steel plate entirety not heat; Do not waste energy; Operating environment close friend, alleviates operative employee's labour intensity.
The design of splicing groove.Tank skin steel plate adopts asymmetric " X " type groove, is generally interior large outer little.When " L " shaped steel plate is assembled into many ribs tank skin, design asymmetric " X " type groove and allocation proportion thereof, form dexterously the extremely strong groove combination of the recessive anti-indent shrinkage of postwelding.
Welding Process Design.Main consideration union melt welding welding process; First weld internal groove, the outer groove of rear welding, selects suitable deposited metal allocation proportion and point stratum proportion, and after making to have welded, weld seam inside just forms a kind of reserved reversible deformation and possesses the recessive force structure of very strong high temperature resistance tank skin indent shrinkage strain performance.In fact,, after having welded, the corner angle on tank skin and splicing welding joint should be outside dimplings.Tank skin welding: adopt (submerged arc or electroslag) weldering automatically.HO8Mn, HO8MnA, H10Mn2 or HO8Mn2Si etc. for welding wire.Also can adopt manual CO2 gas to protect weldering bottoming, welding wire is selected HO8Mn2Si, then by methods such as union-melt welds.Covered arc welding adopts E5015 or E5015-G or J507RH.
For super-huge slag ladle, if circular arc tank skin is transformed into after multi-angular convex polygon tank skin, because of the polygonal limit of tank mouth straight and wide, be different from circular arc limit completely, so, in technological process, just there will be slag because action of gravity is with the diversity track phenomenon of dishing out toppling over, be difficult to like this close up, be not easy to award slag processing.For this reason, multi-angular convex polygon tank skin topple over slag limit, inner side is designed to del rewinding corner angle (gusset), utilizes like this closing in effect of corner angle (gusset), just can realizing slag, to topple over operating process very smooth, makes to award slag effect identical with circular arc tank skin.
Except above-mentioned " multi-angular polyhedron convex polygon rotational symmetry welded construction " feature, the content of slag ladle other parts was with circular arc welded construction slag ladle was basic identical in the past.As: material type selecting; Waistband adapter structure; Assembling and welding at the bottom of tank mouth flange stiffening ring and tank: at the bottom of tank, be designed to built-inly, tank mouth is designed to external placed type; Mounting ear axle bed and gudgeon: after tank skin welding equipment, then assemble trunnion seat, last, gudgeon is installed.Trunnion seat adopts " crisscross box unitized construction " design.Trunnion seat is welded on tank skin, and gudgeon (is convenient to installation, dismounting or maintain and replace etc.) by bolted on tank skin; Auxiliary gusset and radiating fin installation and welding, postweld heat treatment etc.From strengthening radiating fin material type selecting, thickness, width equidimension parameter.For material, the metallic substance such as carbon steel, steel alloy, copper, aluminium all can; Thickness is not limit in principle, but actually operating with 5mm, following or 1mm～5mm is more for convenience.
JB/T4730-2005 is selected in nondestructive testing, and PT, UT etc. is that I is qualified.
Heat treatment cycle curve: Heating temperature: 620 ± 20 ℃; Heat-up rate :≤150 ℃/h; Soaking time: 240min; Cooling rate :≤100～150 ℃/h, 400 ℃ of following air coolings.
The notable feature of the convex polygon slag ladle of the present embodiment is as follows.
" circular, cylindrical and truncated cone-shaped structure " in the past become " multangular Polygons " structure by " non-volume pressure Wide and Thick Slab " welded construction slag ladle, greatly simplify manufacturing process, shorten manufacturing schedule, remove volume swaging manufacturing procedure, save processing and manufacturing expense, improve efficiency, significantly reduced manufacturing cost, improved cost performance.And the two structure formation, theory and practical function are completely different.
Simplify technique.Non-volume pressure shape slag ladle manufacturing technology is to be subject to hardly processing units restriction, and the processing of volume swaging is limited: when volume is pressed Wide and Thick Slab, not only need special large-scale form-pressing machine (more than 120mm is thick, more than wide 8000mm), and, slag ladle wall is long-pending larger, the plate size that volume is pressed is larger, requirement to swaging processing units is harsher, in the time that size arrives some amount greatly (as the large slag ladle of 33 cubes of 60 tons of weights), almost just the work that impossible complete, unless special special large-scale volume press, but (also there is no at present this super-huge volume press) well imagined in cost and market existence.But not volume pressing plate slag ladle makes the manufacture of " non-volume pressure Wide and Thick Slab " welded construction slag ladle not amassed by slag ladle wall and the restriction of Wide and Heavy Plates size, without special large-scale swaging equipment.
Save steel plate.Volume swaging adds man-hour, waste steel plate.Because volume is when swaging, steel plate is thicker, stings steel amount just more.Press 80mm Plate Steel for volume, what initial and end at least needed reserved 400～600mm stings steel length, altogether needs to waste the long steel plate of 800～1200mm, just can complete swaging operation.Every like this volume presses a block plate will waste the steel of several tons.If volume is pressed steel plate more than 80mm thickness, steel plate utilization ratio is lower, and wastage cannot be accepted.But not volume pressing plate slag ladle is not amassed by slag ladle wall and the restriction of plate size, steel plate utilization ratio is high, Comparatively speaking, wastes hardly steel plate.
Weight lightens.Heavily approximately 60 tons of the circular 33 cubes of welded construction slag ladles of reel pressing plate Wide and Thick Slab.33 cubes of welded construction slag ladles of non-volume pressure shape that before 2 years, success is developed, approximately 5 tons of losss of weight, under the prerequisite of guaranteeing performance, have significantly saved material and resource on year-on-year basis.The secret formula of non-volume pressure Wide and Thick Slab slag ladle loss of weight is circle to become Polygons.
Optimize the environment.Volume swaging adds man-hour, and severe operational environment is not only difficult but also have trouble: steel plate entirety must be heated to more than 600 ℃, just can carry out hot rolling pressure, otherwise, can crack, affect roll of steel plate and press quality.In addition, more trouble, steel plate is thicker, and the strength of materials is higher, and the temperature of heating just must be higher, both wasted energy like this, increases the weight of again operative employee's labour intensity and degradation manipulation environment.But not volume pressing plate slag ladle need not entirety heat.
Cost efficiency.The process cost of volume pressing plate slag ladle are very expensive, the process cost of the following Wide and Thick Slab swaging of existing market 80mmm are 6000～8000 yuan/ton, as the large slag ladles of 33 cubes 60 tons heavy only swaging expense just on average reached more than 40 ten thousand yuan every, and road trucking costs etc. back and forth while disregarding the processing of outer committee.But not having saved special volume, volume pressing plate slag ladle presses process cost.
According to the present invention, circle in the past, cylindrical and truncated cone-shaped structure have been become " multangular convex polygon " structure by multi-angular convex polygon welded construction metallurgical slag tank, greatly simplify manufacturing process, shorten manufacturing schedule, remove volume swaging manufacturing procedure, saved processing and manufacturing expense, improved efficiency, significantly reduce manufacturing cost, improved cost performance.
Claims (13)
1. a multi-angular convex polygon structure metallurgical slag tank, described metallurgical slag tank be one be welded, for the treatment of the pot container of molten state slag or scum, it is characterized in that, described metallurgical slag tank tank skin system splices and is welded into by non-volume pressure 3～14 blocks of " L " type steel alloys or carbon steel Wide and Thick Slab, and described slag ladle tank body cross section is multi-angular convex polygon.
2. the multi-angular convex polygon structure of one as claimed in claim 1 metallurgical slag tank, is characterized in that: described metallurgical slag tank is the up big and down small prismoid of sectional dimension.
3. the multi-angular convex polygon structure of one as claimed in claim 1 metallurgical slag tank, it is characterized in that: the longitudinal spliced weld seam of described multi-angular convex polygon structure slag ladle tank skin is formed in the steel plate plane that forms described convex polygon structure slag ladle tank skin, the outside dimpling of described assembled weld seam.
4. the multi-angular convex polygon structure of one as claimed in claim 1 metallurgical slag tank, it is characterized in that: " L " shaped steel plate splicing welding joint of described slag ladle tank skin adopts " X " type groove, and described " X " type groove is asymmetric " X " type groove that tank skin inwall groove size is greater than tank skin outer wall groove size.
5. the multi-angular convex polygon structure of one as claimed in claim 1 metallurgical slag tank, is characterized in that: described slag ladle tank body volume >=18 cube.
6. the multi-angular convex polygon structure of one as claimed in claim 1 metallurgical slag tank, it is characterized in that: described slag ladle tank skin forms the plane of symmetry with two gudgeon medullary rays and the tank mouth medullary ray of slag ladle, be axial plane symmetrical structure, the corner angle number of described slag ladle tank skin equates with polygonal limit number and is even numbers.
7. the multi-angular convex polygon structure of one as claimed in claim 1 metallurgical slag tank, it is characterized in that: the slag discharging port inner side of described slag ladle tank body adopts receives cinder notch design, is designed to corner angle or the gusset of del for rewinding in described slag ladle tank skin pour spout inner side.
8. the manufacture method of a multi-angular convex polygon structure metallurgical slag tank, described metallurgical slag tank be one be welded, for the treatment of the pot container of molten state slag or scum, it is characterized in that, described metallurgical slag tank tank skin system splices and is welded into by non-volume pressure 3～14 blocks of " L " type steel alloys or carbon steel Wide and Thick Slab, described slag ladle tank body cross section is multi-angular convex polygon
Described method comprises the steps:
The processing of steel plate cutting-groove processing-flanging-tank skin welding-thermal treatment-gudgeon portion and installation-finished product.
9. the manufacture method of convex polygon structure metallurgical slag tank as claimed in claim 8, it is characterized in that, the welding of described multi-angular convex polygon structure slag ladle flanging-tank skin adopts waypoint backfin limit method, first by Wide and Thick Slab cutting stock, then, each Wide and Thick Slab is pressed into " L " shape, locates the longitudinal corner angle of knuckle as described multi-angular convex polygon structure slag ladle tank skin using " L " of described each Wide and Thick Slab of being pressed into " L " shape, be welded into each other the closed tank body of the slag ladle of multi-angular convex polygon structure.
10. the manufacture method of convex polygon structure metallurgical slag tank as claimed in claim 8, it is characterized in that, in the time that " L " shaped steel plate is assembled into tank skin, form the steel plate splicing groove design of slag ladle tank skin, between described steel plate, splice groove design asymmetrical " X " type groove,, described " X " type groove is asymmetric " X " type groove that tank skin inwall groove size is greater than tank skin outer wall groove size.
The manufacture method of 11. convex polygon structure metallurgical slag tanks as claimed in claim 8, it is characterized in that, described slag ladle tank skin forms the plane of symmetry with two gudgeon medullary rays and the tank mouth medullary ray of slag ladle, be axial plane symmetrical structure, the corner angle number of described slag ladle tank skin equates with polygonal limit number and is even numbers, and the corner angle number of described slag ladle tank skin is in 4～16 scopes.
The manufacture method of 12. convex polygon structure metallurgical slag tanks as claimed in claim 8, is characterized in that, the Welding Process Design of described slag ladle tank skin, the first inwall groove of described " X " type groove of welding, " X " type groove outer wall groove described in rear welding.
Thus, after making to have welded, weld seam inside just forms a kind of reserved reversible deformation and possesses the recessive force structure of very strong high temperature resistance tank skin indent shrinkage strain performance.
The manufacture method of 13. convex polygon structure metallurgical slag tanks as claimed in claim 8, is characterized in that, adopts and receives cinder notch design in the slag discharging port inner side of multi-angular convex polygon tank skin, is designed to del rewinding corner angle or gusset in slag ladle pour spout inner side.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112581A (en) * | 2015-09-02 | 2015-12-02 | 中冶宝钢技术服务有限公司 | Welded slag pot with variable approximately-elliptical cross section and manufacturing method thereof |
| CN107130069A (en) * | 2016-02-26 | 2017-09-05 | 宝山钢铁股份有限公司 | A kind of solder type metallurgical slag tank of non-bolted joint and preparation method thereof |
| CN109897922A (en) * | 2019-03-26 | 2019-06-18 | 武钢集团襄阳重型装备材料有限公司 | A kind of large-scale metallurgical slag ladle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928794A (en) * | 2009-06-22 | 2010-12-29 | 宝山钢铁股份有限公司 | Metallurgical slag tank with novel structure and manufacturing method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928794A (en) * | 2009-06-22 | 2010-12-29 | 宝山钢铁股份有限公司 | Metallurgical slag tank with novel structure and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112581A (en) * | 2015-09-02 | 2015-12-02 | 中冶宝钢技术服务有限公司 | Welded slag pot with variable approximately-elliptical cross section and manufacturing method thereof |
| CN105112581B (en) * | 2015-09-02 | 2017-06-06 | 中冶宝钢技术服务有限公司 | One species elliptical deformation section welding slag ladle and preparation method thereof |
| CN107130069A (en) * | 2016-02-26 | 2017-09-05 | 宝山钢铁股份有限公司 | A kind of solder type metallurgical slag tank of non-bolted joint and preparation method thereof |
| CN107130069B (en) * | 2016-02-26 | 2019-06-25 | 宝山钢铁股份有限公司 | A kind of solder type metallurgical slag tank of non-bolted joint and preparation method thereof |
| CN109897922A (en) * | 2019-03-26 | 2019-06-18 | 武钢集团襄阳重型装备材料有限公司 | A kind of large-scale metallurgical slag ladle |
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| CN103789471B (en) | 2016-02-24 |
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