CN101368220A - Novel structured metallurgy cinder ladle and method of producing the same - Google Patents
Novel structured metallurgy cinder ladle and method of producing the same Download PDFInfo
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- CN101368220A CN101368220A CNA2008100424728A CN200810042472A CN101368220A CN 101368220 A CN101368220 A CN 101368220A CN A2008100424728 A CNA2008100424728 A CN A2008100424728A CN 200810042472 A CN200810042472 A CN 200810042472A CN 101368220 A CN101368220 A CN 101368220A
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Abstract
The invention discloses a metallurgical slag tank with a novel structure which is a tank-shaped container used for holding melting steel (iron) slag with a bottom diameter larger than a mouth diameter. The invention is characterized in that the metallurgical slag tank is welded by steel plates. According to the metallurgical slag tank of a novel structure, a welding technique is used to weld the steel plates into the tank, thus reducing the environment pollution to a large extent. As the crystal grains of the steel plates forming the wall of the metallurgical slag tank are uniform in thickness and almost does not have the defects of shrinkage cavity, shrinkage porosity, air hole, segregation, crack, non metallic inclusion, thermal fragment, cold cracking, and the like; and as the crystal grains of the steel plates forming the wall of the metallurgical slag tank are like common rolling steel, the solderability and the maintainability of the slag tank are good; the service life of the slag tank can be greatly prolonged; the safety troubles often appeared in a production field like the cracking of the slag tank can be eliminated; the cost is reduced to a large extent.
Description
Technical field
The present invention relates to field of metallurgy, particularly, the present invention relates to a kind of metallurgical slag tank and manufacture method thereof that is used for the novel texture of metallurgical casting.
Background technology
Slag ladle is the container of Sheng steel (iron) slag used when being used for smelting iron and steel.Up to now, existing slag ladle is essentially the container that adopts Sheng steel (iron) slag that the conventional cast cast forms.
The method that adopts traditional casting technique to make metallurgical slag tank has problems as follows:
One. contaminate environment.As everyone knows, casting is an environmental issue maximum in the field of machining, that is, and and one of the industry of so-called " the dirtiest ".The casting of slag ladle is like this equally.For example, in the process of surplus liquid steel slag of casting or scum of tumbling to the sand pit, the space is filled the air in a large amount of dust flue gas ascensions, and operating environment is abominable; On-the-spot pollution may cause the electrical equipment fault to take place frequently; The emission concentration of the obnoxious flavour in slag and the waste gas, organic carbon (TOC) and heavy metal (cadmium, chromium, copper, mercury, nickel, lead, zinc) is higher, has a strong impact on the healthy of employee.Thereby the problem of environmental pollution that is brought by the casting of slag ladle is very big.
Two. there is potential safety hazard.Because of casting slag ladle crystal grain thick than common rolled steel (because of without overheated press working, crystal grain still is virgin state), thickness inhomogeneous (due to the cooling conditions difference), make the large-scale metallurgical apparatus for casting have various defectives inevitably as shrinkage cavity, shrinkage porosite, pore, segregation, crackle, nonmetal inclusion, hot tearing, cold cracking etc., often occur the slag ladle cracking in the production scene of manufacturing, use, cause potential safety hazard for production and operator.
Three. for these reasons, make the large-scale metallurgical apparatus for casting have various defectives inevitably, have a strong impact on its use properties as shrinkage cavity, shrinkage porosite, pore, segregation, crackle, nonmetal inclusion, hot tearing, cold cracking etc.
Four. for these reasons, the weldability that causes casting slag ladle is poor, recoverability is poor, and maintenance cost is big.Thereby, make the casting slag ladle short work-ing life.
Five. always there is the reason of various defectives equally based on the casting of slag ladle inevitably, makes described slag ladle after using the several months, both must scrap.On the other hand, because the slag ladle usage quantity is very big, for example, be example with certain large-scale iron and steel enterprise in China, only the slag ladle of 5.3 cubic meters capacity promptly needs more than 100 of year consumptions in recent years, causes the use cost of present casting slag ladle very big, is unfavorable for cost efficiency.
Summary of the invention
For overcoming the problems referred to above, the technical scheme of the metallurgical slag tank of novel texture of the present invention is as follows:
A kind of metallurgical slag tank of novel texture, be one jar of mouth bore greater than jar at the bottom of diameter, be used to hold, topple over the pot container of molten state slag or scum, it is characterized in that,
Described metallurgical slag tank system connects alloy steel plate or Carbon Steel Plate and forms as the tank skin of described slag ladle and a jar back welding.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, the metallurgical slag tank of described novel texture is with the thickness of alloy steel plate or the Carbon Steel Plate scope at 40mm to 120mm.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, the metallurgical slag tank periphery of described novel texture is welded with stiffening web (plate).
Metallurgical slag tank according to novel texture of the present invention is characterized in that, is formed with " reinforcing flange circle " in the welding of the metallurgical slag tank mouth periphery of described novel texture.Described " reinforcing flange circle " is welding, is formed at jar stiffening web (plate) of mouthful periphery.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, described novel welded construction metallurgical slag tank tank skin pitch angle (gradient) is in the scope of 75 degree to 55 degree.
The tank skin pitch angle (gradient) of slag ladle, that is, and slag ladle tank skin and the angle (α) that is parallel to jar baseplane.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, the metallurgical slag tank of described novel texture system adopts hot rolled alloy steel plate or hot rolling Carbon Steel Plate to connect as tank skin and a jar back welding and forms.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, the metallurgical slag tank of the described novel texture forced section of tumbling adopts " cross bar " stiffening web (plate) structure.So-called " cross bar " stiffening web (plate) structure, that is: a vertically long gusset and the horizontal gusset of strengthening strengthened is respectively welded in tank body two gudgeon sides, forms stiffening web (plate) structure of shape as " cross bar ".
Metallurgical slag tank according to novel texture of the present invention is characterized in that, the stressed district of the metallurgical slag tank gudgeon of described novel texture adopts " three vertical two horizontal strokes " to add " cover plate " stiffening web (plate) structure.
So-called " three vertical two horizontal strokes " add " cover plate " stiffening web (plate) structure,, in the stressed district of the gudgeon of slag ladle, weld waling plate and two horizontal reinforcements after the gusset that three block length weak points differ that is, and the outside is welded one and strengthened gusset to cover shape thereon again.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, adopts " T type base " stiffening web plate structure, also available " at the bottom of the circular arc " stiffening web plate structure at the bottom of the metallurgical slag tank jar of described novel texture.
So-called " T type base " structure, promptly, jar end employing tabular alloy steel plate or Carbon Steel Plate are as the jar end and the tank skin welding of described slag ladle, and tabular jar bottom is welded with the reinforcement gusset, and the reinforcement gusset cross-sectional shape that welds with its underpart at the bottom of the tabular jar is as " T " font structure.
So-called " at the bottom of the circular arc " structure, that is, the recessed circular-arc alloy steel plate of employing compacting or Carbon Steel Plate are as the jar end and the tank skin welding of described slag ladle, and circular-arc plate bottom is welded with the reinforcement gusset.Described recessed circular-arc alloy steel plate or Carbon Steel Plate cross-sectional shape are recessed circular arc line.
Metallurgical slag tank according to novel texture of the present invention is characterized in that, the metallurgical slag tank gudgeon of described novel texture adopts forging molding.
Purpose of the present invention is again, and a kind of manufacture method of metallurgical slag tank of novel texture is provided.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that,
Described method comprises the steps:
The processing of steel plate cutting-groove and steel plate pressure shape-assembling-tank body welding-
Thermal treatment-processing of gudgeon portion and installation-finished product,
Cutting steel alloy or carbon steel steel plate 3-12 piece, press shape method (or roll or roll up be pressed into shape) to form the jar end and tank skin with processing as slag ladle, with described steel plate be welded into jar mouthful bore greater than jar at the bottom of diameter, be used to hold, topple over the pot container of molten state slag or molten iron slag.
Again, referring to Fig. 5, above-mentioned " tank body welding " stage comprises: the welding and the installation of trunnion seat, jar mouthful flange portion, the forced section of tumbling, base and gusset and supplementary unit etc., above-mentioned " processing of gudgeon portion and the installation " stage comprises: trunnion seat processing, measurement, the installation of processing of gudgeon hole and gudgeon.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that,
Press the shape stage in described groove processing with steel plate, the steel plate that cuts is pressed into the shape that is used to form tank body tank skin, tank body base plate respectively." X " type groove is adopted in welding at tank skin butt joint, reinforcing flange circle, the forced section of tumbling, the stressed district of gudgeon lengthways main steel bar plate etc., " K " type groove is adopted in the welding of tank body base plate, other weld adopts monolateral " V " type groove, 35 °～55 ° of groove angles, flame add the mechanical means cutting.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that, the metallurgical slag tank tank skin pitch angle of described novel texture is in the scopes of 75 degree to 55 degree, and described tank skin pitch angle is slag ladle tank skin and the angle (α) that is parallel to jar baseplane.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention, it is characterized in that, in the described tank body welding stage, the metallurgical slag tank mouth gudgeon inclination of described novel texture is turned over forced section and is adopted " cross bar " stiffening web plate structure, promptly, respectively weld a vertical long gusset and a horizontal gusset in tank body two gudgeon sides, form shape as " cross " shape structure.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that described reinforcement gusset also can use the steel plate of cutting of the present invention.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention, it is characterized in that, in the described tank body welding stage, the stressed district of the metallurgical slag tank mouth gudgeon of described novel texture adopts " three vertical two horizontal strokes " to add the stiffening web plate structure of " cover plate ", that is: weld vertical gusset and two horizontal gussets that three block length weak points differ in the stressed district of gudgeon, on described vertical gusset and horizontal gusset, strengthen gusset again to cover one of shape welding.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention, it is characterized in that, in the described tank body welding stage, base adopts flat or circular arc bottom structure at the bottom of the metallurgical slag tank jar of described novel texture, weld with tank skin at the bottom of adopting tabular alloy steel plate or Carbon Steel Plate as jar at the bottom of the so-called flat-bottom tank, and the bottom is welded with the reinforcement gusset, the reinforcement gusset cross-sectional shape that welds with its underpart at the bottom of the tabular jar is as " T " font structure, so-called " at the bottom of the circular arc " structure is promptly: adopt the concave shape circular arc steel plate of compacting to do jar end and weld with tank skin, the bottom is welded with the reinforcement gusset.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that, in the described tank body welding stage, the metallurgical slag tank mouth place of described novel texture is welded with by strengthening " the reinforcing flange circle " that gusset forms.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that, as the jar end of slag ladle and the steel alloy or the carbon steel steel plate of tank skin be hot-rolled steel sheet, and thickness is the scope of 40mm to 120mm.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that, presses the shape stage in described groove processing with steel plate, and described steel plate presses shape to adopt processing to press shape method (or roll or roll up be pressed into shape).
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that, in the described tank body welding stage, union-melt weld or electroslag welding are adopted in the welding of described slag ladle tank body;
Welding wire selects that H08Mn, H08MnA, H10Mn2 or H08Mn2Si's is a kind of for use; Or,
Adopt manual CO2 gas to protect the weldering bottoming, welding wire is selected H08Mn2Si for use, Φ 1.2mm, then
Carry out union-melt weld or electroslag welding, described manual arc welding wire selects that E5015, the E5015-G of Φ 4mm or J507RH's is a kind of for use.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention, in the described tank body welding stage, weld preheating and layer temperature (interlayer temperature) control are carried out in welding, computer temperature controller device is adopted in described weld preheating and layer temperature control, with in automatic control electrical heating method heating bevel for welding and the groove both sides 150mm scope to 100 ℃～150 ℃, interlayer temperature is not less than preheating temperature.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that at described heat treatment stages, heat treatment cycle curve is as follows:
Heating temperature: 620 ± 20 ℃, heat-up rate :≤150 ℃/h, soaking time: 220-240min,
Cooling rate :≤100～150 ℃/h, air cooling below 400 ℃.The metallurgical slag tank of described novel texture adopt thickness at the alloy steel plate of the scope of 40mm to 120mm or Carbon Steel Plate as the slag ladle tank skin and jar end.
Manufacture method according to the metallurgical slag tank of novel texture of the present invention is characterized in that, the metallurgical slag tank gudgeon of described novel texture adopts forging molding.
According to novel welded construction metallurgical slag tank of the present invention and manufacture method thereof, described metallurgical slag tank is to adopt weldprocedure that the steel plate of cutting is welded into jar.Significantly reduce environmental pollution thus.Owing to constitute the crystal grain even thickness of described metallurgical slag tank tank skin steel plate, there are defectives such as shrinkage cavity, shrinkage porosite, pore, segregation, crackle, nonmetal inclusion, hot tearing, cold cracking hardly, and because the steel plate uniform crystal particles degree of formation slag ladle tank skin is as common rolled steel, therefore, the weldability of slag ladle and recoverability are good, can prolong slag ladle work-ing life greatly, and can eliminate the potential safety hazards such as slag ladle cracking that often occur in the production scene, significantly reduce cost.
The simple declaration of accompanying drawing
Fig. 1 is that novel welded construction metallurgical slag tank one exception of the present invention is seen stereographic map.
Fig. 2 is that the another exception of novel welded construction metallurgical slag tank of the present invention is seen stereographic map.
Fig. 3 is heat treatment cycle curve figure.
Fig. 4 is the manufacturing process flow diagram of the metallurgical slag tank of novel texture of the present invention.
Fig. 5 is the phantom view at novel welded construction metallurgical slag tank gudgeon of the present invention place.
Fig. 6 is the phantom view of novel welded construction metallurgical slag of the present invention perpendicular to the gudgeon place.
The part sectioned view of Fig. 7 for seeing from Fig. 6 left side.
Fig. 8 is the vertical view of Fig. 6.。
Among the figure, 1 is the slag ladle body, and 3 is tank skin; 2 is a jar mouthful stiffening ring; 4 is the stressed district of gudgeon; 5 are the forced section of tumbling " cross bar " structure; 6 is the slag ladle base; 7 is gudgeon: 8 for strengthening gusset, and α is slag ladle tank skin pitch angle (gradient).
Embodiment
Below, with reference to accompanying drawing, describe the metallurgical slag tank and the manufacture method thereof of novel texture of the present invention in detail with specific embodiment.
Embodiment 1
(1) selection or material type selecting: select carbon steel or low alloy steel such as 16Mn (Q345B, C, D) for use, SM490 generous alloy steel plate 3-8 pieces such as (B, C).Described steel plate thickness range is 40mm to 80mm.
(2) blanking and groove processing: " X " type groove is all adopted in the welding of the butt joint of tank body slab, bag mouthful reinforcing flange, the forced section mainboard of tumbling, the stressed district of gudgeon lengthways main steel bar plate etc., tank body base plate groove adopts " K " type, other employing monolateral " V " groove.35 °～55 ° of groove angles.Add mechanical means (automatically) cutting with flame.
(3) steel plate is pressed shape (rolling): adopt normal temperature cold working to press the shape method.
(4) tank body (cylindrical shell) welding: adopt automatic submerged arc welding.Welding wire H08Mn, H08MnA, H10Mn2 or H08Mn2Si etc.Also can adopt manual CO2 gas to protect the weldering bottoming, welding wire is selected H08Mn2Si for use, and Φ 1.2mm is then with methods such as union-melt welds.E5015 or E5015-G or J507RH, Φ 4mm are adopted in covered arc welding.
(5) trunnion seat adopts " three vertical two willfully cover plate " reach " cross structure " to design.Should grasp " vertical earlier back is horizontal " when installing and welding, the principle of " from inside outwards ".
(6) JB/T4730-2005 and GB/T2970-91 " steel plate supersonic testing method " or GB/T6402-91 are selected in nondestructive testing for use.
As shown in the figure, 1 is the slag ladle body, selects for use Wide and Thick Slab steel alloy or slab carbon steel as tank skin or jar end or reinforcement gusset, described Wide and Thick Slab steel alloy or slab carbon steel 3-12 piece.Described steel plate thickness range is 40mm to 120mm, forms with the welding process manufacturing.
2 is a jar mouthful stiffening ring, also is a jar mouthful flange.Described " reinforcing flange circle " promptly forms strengthening rib strip or the stiffening web sheet that connects to one in length and breadth with stiffening web (plate) form at slag ladle mouth outer peripheral edges place, to solve bag mouthful intensity and problem on deformation, promptly solve a jar mouthful hot strength, prevents a jar mouthful distortion.
3 is tank skin.The metallurgical slag tank of described novel texture adopts the tank skin gradient (gradient) (α) 75 °～45 ° scopes.The tank skin pitch angle (gradient) of described slag ladle, that is, and slag ladle tank skin and the angle (α) that is parallel to jar baseplane.Its objective is solve high temperature heat radiation, high temperature slag particle to sticking jar of the slag ladle wall, wash away, penetration, burn the problem in the operational process of craft such as problem and dress slag, slag dumping.
4 is the stressed district of gudgeon.Adopt " three vertical two horizontal strokes " to add " cover plate " combination stiffening web (plate) structure.So-called " three vertical two horizontal strokes " add " cover plate " stiffening web combination (plate) structure, promptly, the stressed district of gudgeon is welded with waling plate and two structures that horizontal reinforcement gusset constitutes that differed by three block length weak points, again thereon, weld a stiffening web cover plate to cover shape, constitute unitized construction, its objective is the stressed problem of gudgeon that solves.
5 are the forced section of tumbling.Adopt " cross bar " stiffening web (plate) structure.For being applicable to the equipment of tumbling of (as tipping car, driving etc.) under the various working conditions.Described " cross bar " structure is " cross " shape stiffening web (plate) structure.
6 is the slag ladle base.The jar end (base) adopts " T type " reinforcing plate structure.That is, as slag ladle base and steel plate welding one as tank skin, gusset is strengthened in welding in tabular slag ladle base bottom again with the tabular steel plate, and tabular slag ladle base becomes " T " word shape with the reinforcement gusset cross section that is welded in its underpart.
7, be gudgeon.The slag ladle gudgeon adopts high-strength bolt to be connected with tank body, and gudgeon adopts forging molding, and material can be selected carbon steel or steel alloy for use.
In the present embodiment, the gudgeon processing technology requires as follows.
The slag ladle gudgeon is selected the 35# steel forgings for use, satisfies GB/T 699-1988 " highquality carbon steel technical qualification ".(blank, work in-process) adopt the UT flaw detection, gudgeon flaw detection conformance with standard GB/T6402-91 requirement, and II level (containing the II level) is above qualified.Forge and press the examination of JB/T5000.8-1998 " forging general technical specifications " V group standard.Forging need pass through normalizing+tempered method thermal treatment, finally reaches hardness HB=131～187.Heat treatment cycle curve as shown in Figure 4.
Gudgeon connects high-strength bolt: gudgeon and tank body adopt bolted-on connection, and bolt adopts hexagonal cylinder head bolt (GB/T70.1-2000) in the high strength, specification M30 * 70, performance rate 8.8, material 35CrMo.
8 for strengthening gusset.Stiffening web comprises jar a mouthful stiffening web (plate), tank body tumble stiffening web (plate), the stressed district of gudgeon stiffening web (plate) and base stiffening web (plate) etc.Purpose is stressed etc. in order to increase slag ladle intensity and rigidity, weight reduction, saving material, uniform stress, optimization.Strengthen gusset and use cutting steel plate of the present invention.
In the present embodiment, retest of materials and inspecting standard are as follows.
| Title | The items/materials trade mark | Standard No. |
| The slag ladle material of main part | 16Mn/SM490B/20g/25 | GB6654—1996、GB1591-94 |
| Gudgeon | The 35# forged steel pieces | GB699-1998 |
| The gudgeon screw | 35CrMo | GB3077—88 |
| The main body seam inspection | UT | JB/T4730.3-2005 |
| The fillet weld flaw detection | PT | JB/T4730.5-2005 |
In the present embodiment, weld preheating and layer temperature (interlayer temperature) control: adopt computer temperature controller device, with in automatic control electrical heating method heating bevel for welding and the groove both sides 150mm scope to 100 ℃～150 ℃, interlayer temperature is not less than preheating temperature.When tank body main body weld seam adopted Lincoln weld method or electroslag welding process to weld, welding wire adopted H10Mn2 φ 4mm, and solder flux adopts SJ101.
(12) welding requirements: when adopting manual welding electrode to weld, use direct supply, adopt E5015-G (J507RH) φ 4mm welding rod, welding current is 150A, every root bead bar weld length is controlled at 150～200mm, multi-pass welding, way scarfing cinder, welded together and it has been carried out the stress-removal processing, and cleaned down with wire brush and to prevent new defective with the vibration rifle.
In the present embodiment, when adopting the manual semi-automatic method of carbonic acid gas to carry out the fillet weld welding, with the welding of direct supply reversed polarity; Welding wire uses and takes the plug and play principle, opens bag the same day and uses up the same day; The examination of welding wire is by relevant criterion.The carbon dioxide that is used to weld should meet GB6052 " industrial liquid carbonic acid gas " first quality standard, and volume capacity should be greater than 99.5%, and water content should be not more than 0.05%.Stop using for the time when the carbon dioxide gas pressure in the bottle, prevent to produce the welding pore less than 1MPa.
The manufacturing process flow of the novel texture metallurgical slag tank of present embodiment as shown in Figure 5.
In the present embodiment, as shown in Figure 3, the thermal treatment process of the metallurgical slag tank manufacturing process of novel texture is as follows.
Heat treatment cycle curve: Heating temperature: 620 ± 20 ℃; Heat-up rate :≤150 ℃/h; Soaking time: 220-240min; Cooling rate: 120-150 ℃/h, air cooling below 400 ℃.
Thus, making its volume of the present invention respectively is 5.3 cubic metres, 15 cubic metres, 18 cubic metres to 33 cubic metres slag ladle.
Except following, other are as embodiment 1, and making its volume of the present invention respectively is slag ladle of 5.3 cubic metres, 15 cubic metres, 18 cubic metres to 33 cubic metres etc.
Selection or material type selecting: select as 20g 20#, generous Carbon Steel Plate 8-12 such as 25# piece for use.Adopting or rolling or roll up presses moulding method to be shaped.Described steel plate thickness range is 80mm to 120mm; Tank body welding: adopt automatic slag pool welding; The metallurgical slag tank of described novel texture adopts the tank skin obliquity of the gradient (α) 75 °～55 ° of scopes." at the bottom of the circular arc " structure is adopted at jar end,, welds one with recessed circular-arc steel plate as slag ladle base and steel plate as tank skin that is, is welded with the reinforcement gusset in recessed circular-arc slag ladle base bottom again.
Cooling rate: 90-120 ℃/h; In jar mouth outer peripheral edges, the stressed district of gudgeon, tumble forced section and a jar bottom be provided with and strengthen outside the gusset, outboard peripheries also is provided with the reinforcement gusset at the bottom of jar.
According to novel welded construction metallurgical slag tank of the present invention and manufacture method thereof, described metallurgical slag tank is to adopt weldprocedure that rolling steel plate is welded into jar.Significantly reduce environmental pollution thus.Owing to constitute the crystal grain even thickness of described metallurgical slag tank tank skin steel plate, there are defectives such as shrinkage cavity, shrinkage porosite, pore, segregation, crackle, nonmetal inclusion, hot tearing, cold cracking hardly, and because the steel plate uniform crystal particles degree of formation slag ladle tank skin is as common rolled steel, therefore, the weldability of slag ladle and recoverability are good, can prolong slag ladle work-ing life greatly, and can eliminate the potential safety hazards such as slag ladle cracking that often occur in the production scene, significantly reduce cost.
Claims (20)
1. the metallurgical slag tank of a novel texture, be one jar of mouth bore greater than jar at the bottom of the pot container that is used to hold, topple over molten state slag or scum of diameter, it is characterized in that,
Described metallurgical slag tank system with alloy steel plate or Carbon Steel Plate as slag ladle tank skin and slag ladle jar at the bottom of, be welded.
2. the metallurgical slag tank of novel texture as claimed in claim 1 is characterized in that, is welded with the reinforcement gusset at the metallurgical slag tank periphery of described novel texture.
3. the metallurgical slag tank of novel texture as claimed in claim 2 is characterized in that, is welded with the reinforcement gusset at the metallurgical slag tank mouth outer peripheral edges place of described novel texture, forms by " reinforcing flange circle ".
4. the metallurgical slag tank of novel texture as claimed in claim 1 is characterized in that, the metallurgical slag tank tank skin pitch angle of described novel texture is in the scope of 75 degree to 55 degree, and described tank skin pitch angle is slag ladle tank skin and the angle that is parallel to jar baseplane.
5. the metallurgical slag tank of novel texture as claimed in claim 2, it is characterized in that, turn over forced section in two gudgeon inclinations of slag ladle tank body and adopt " cross bar " shape stiffening web plate structure, promptly, respectively weld a vertical long gusset and a horizontal gusset in tank body two gudgeon sides, form shape as " cross " shape structure.
6. the metallurgical slag tank of novel texture as claimed in claim 2, it is characterized in that, adopt " three vertical two horizontal strokes " to add the reinforcing rib structure of " cover plate " in the stressed district of the metallurgical slag tank gudgeon of described novel texture, that is: weld vertical gusset and two horizontal gussets that three block length weak points differ in the stressed district of gudgeon, on described vertical gusset and horizontal gusset, strengthen gusset again to cover one of shape welding.
7. the metallurgical slag tank of novel texture as claimed in claim 1, it is characterized in that, be flat or the circular arc bottom structure at the bottom of the metallurgical slag tank jar of described novel texture, adopt the jar end and the tank skin welding of tabular alloy steel plate or Carbon Steel Plate at the bottom of the so-called flat-bottom tank as described slag ladle, and the bottom is welded with the reinforcement gusset, at the bottom of the tabular jar with the reinforcement gusset cross-sectional shape of its underpart welding as " T " font structure, so-called " at the bottom of the circular arc " structure promptly: adopt the concave shape circular arc steel plate of compacting to do a jar end.
8. the manufacture method of the metallurgical slag tank of a novel texture is characterized in that, described method comprises the steps:
The processing of steel plate cutting-groove and steel plate pressure shape-assembling-tank body welding-
Thermal treatment-processing of gudgeon portion and installation-finished product,
Cutting steel alloy or carbon steel steel plate 3-12 piece, press molding be as the jar end and the tank skin of slag ladle, with described steel plate be welded into jar mouthful bore greater than jar at the bottom of diameter, be used to hold, topple over the pot container of molten state slag or molten iron slag.
9. the manufacture method of metallurgical slag tank as claimed in claim 8, it is characterized in that, press the shape stage in described groove processing with steel plate, steel plate is pressed into the shape that is used to form tank body tank skin, tank body base plate respectively, " X " type groove is adopted in welding at tank skin butt joint, reinforcing flange circle, the forced section of tumbling, the stressed district of gudgeon lengthways main steel bar plate etc., " K " type groove is adopted in the welding of tank body base plate, and other weld adopts monolateral " V " type groove, 35 °～55 ° of groove angles.
10. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 9 is characterized in that, the metallurgical slag tank tank skin pitch angle of described novel texture is in the scope of 75 degree to 55 degree, and described tank skin pitch angle is slag ladle tank skin and the angle that is parallel to jar baseplane.
11. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8, it is characterized in that, in the described tank body welding stage, the metallurgical slag tank mouth gudgeon inclination of described novel texture is turned over forced section and is adopted " cross bar " stiffening web plate structure, promptly, respectively weld a vertical long gusset and a horizontal gusset in tank body two gudgeon sides, form shape as " cross " shape structure.
12. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8, it is characterized in that, in the described tank body welding stage, the stressed district of the metallurgical slag tank mouth gudgeon of described novel texture adopts " three vertical two horizontal strokes " to add the stiffening web plate structure of " cover plate ", that is: weld vertical gusset and two horizontal gussets that three block length weak points differ in the stressed district of gudgeon, on described vertical gusset and horizontal gusset, strengthen gusset again to cover one of shape welding.
13. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8, it is characterized in that, in the described tank body welding stage, base adopts flat or circular arc bottom structure at the bottom of the metallurgical slag tank jar of described novel texture, adopt the jar end and the tank skin welding of tabular alloy steel plate or Carbon Steel Plate at the bottom of the so-called flat-bottom tank as described slag ladle, and the bottom is welded with the reinforcement gusset, the reinforcement gusset cross-sectional shape that welds with its underpart at the bottom of the tabular jar is as " T " font structure, so-called " at the bottom of the circular arc " structure is promptly: adopt the concave shape circular arc steel plate of compacting to do a jar end, the bottom is welded with the reinforcement gusset.
14. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8 is characterized in that, in the described tank body welding stage, the metallurgical slag tank mouth place of described novel texture is welded with by strengthening " the reinforcing flange circle " that gusset forms.
15. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8 is characterized in that, is hot-rolled steel sheet as the steel alloy or the carbon steel steel plate of the jar end and the tank skin of slag ladle, thickness is the scope of 40mm to 120mm.
16. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8 is characterized in that, presses the shape stage at processing of described groove and steel plate, described steel plate presses shape to adopt processing to press shape method (or roll or roll up be pressed into shape).
17. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8 is characterized in that, in the described tank body welding stage, union-melt weld or electroslag welding are adopted in the welding of described slag ladle tank body;
Welding wire selects that HO8Mn, HO8MnA, H10Mn2 or HO8Mn2Si's is a kind of for use; Or,
Adopt manual CO2 gas to protect the weldering bottoming, welding wire is selected HO8Mn2Si for use, Φ 1.2mm, then
Carry out union-melt weld or electroslag welding, described manual arc welding wire selects that E5015, the E5015-G of Φ 4mm or J507RH's is a kind of for use.
18. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8, in the described tank body welding stage, weld preheating and layer temperature control are carried out in welding, described weld preheating and layer temperature control adopt computer temperature controller device automatic control electrical heating method to heat bevel for welding and groove both sides 150mm scope is interior to 100 ℃～150 ℃, and interlayer temperature is not less than preheating temperature.
19. the manufacture method of the metallurgical slag tank of novel texture as claimed in claim 8 is characterized in that, at described heat treatment stages, described heat treatment cycle curve is as follows:
Heating temperature: 620 ± 20 ℃, heat-up rate :≤150 ℃/h, soaking time: 220-240min,
Cooling rate :≤100～150 ℃/h, air cooling below 400 ℃.
20. the manufacture method of novel welded construction metallurgical slag tank as claimed in claim 8 is characterized in that, the metallurgical slag tank mouth gudgeon of described novel texture adopts forging molding.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100424728A CN101368220B (en) | 2008-09-04 | 2008-09-04 | Novel structured metallurgy cinder ladle and method of producing the same |
| PCT/CN2009/072066 WO2009146638A1 (en) | 2008-06-03 | 2009-06-01 | Metallic slag pot with new structure and manufacturing method thereof |
| JP2011511958A JP5829518B2 (en) | 2008-06-03 | 2009-06-01 | Metallurgical slag pot having a new structure and manufacturing method thereof |
| KR1020107029400A KR101273419B1 (en) | 2008-06-03 | 2009-06-01 | Metallic slag pot with new structure and a manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100424728A CN101368220B (en) | 2008-09-04 | 2008-09-04 | Novel structured metallurgy cinder ladle and method of producing the same |
Publications (2)
| Publication Number | Publication Date |
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| CN101368220A true CN101368220A (en) | 2009-02-18 |
| CN101368220B CN101368220B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100424728A Active CN101368220B (en) | 2008-06-03 | 2008-09-04 | Novel structured metallurgy cinder ladle and method of producing the same |
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| WO2009146638A1 (en) * | 2008-06-03 | 2009-12-10 | 宝山钢铁股份有限公司 | Metallic slag pot with new structure and manufacturing method thereof |
| CN101934420A (en) * | 2010-08-18 | 2011-01-05 | 中信重工机械股份有限公司 | Method for welding conical mill |
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| CN104550892A (en) * | 2013-10-12 | 2015-04-29 | 中冶宝钢技术服务有限公司 | Novel welding slag ladle suitable for slow cooling process of copper slag |
| CN104526132A (en) * | 2014-11-28 | 2015-04-22 | 沈阳大学 | Method for preventing trunnion welding from producing delayed cracks |
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| CN109825655A (en) * | 2019-03-26 | 2019-05-31 | 武钢集团襄阳重型装备材料有限公司 | A kind of large-scale metallurgical slag ladle manufacturing method |
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| CN111593188A (en) * | 2020-06-02 | 2020-08-28 | 常州化工设备有限公司 | Long-life 20-year-usable energy storage tank |
| CN115369196A (en) * | 2021-02-26 | 2022-11-22 | 韶关市德中机械有限公司 | Novel slag pot |
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