CN1761761A - Cooled furnace wall for a metallurgical vessel - Google Patents
Cooled furnace wall for a metallurgical vessel Download PDFInfo
- Publication number
- CN1761761A CN1761761A CN 200480007721 CN200480007721A CN1761761A CN 1761761 A CN1761761 A CN 1761761A CN 200480007721 CN200480007721 CN 200480007721 CN 200480007721 A CN200480007721 A CN 200480007721A CN 1761761 A CN1761761 A CN 1761761A
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- Prior art keywords
- furnace shell
- cooling plate
- web member
- cooling
- edge surface
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- 238000001816 cooling Methods 0.000 claims abstract description 234
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 30
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 10
- 210000001364 upper extremity Anatomy 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000012858 resilient material Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 18
- 239000010949 copper Substances 0.000 description 18
- 229910052802 copper Inorganic materials 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 229910001018 Cast iron Inorganic materials 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 229910000881 Cu alloy Inorganic materials 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 239000004576 sand Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A cooled furnace wall comprises a furnace shell with an inner and an outer side and cooling plates (14, 14') lining the inner side of said furnace shell. Each of the cooling plates (14, 14') has a plate body (20, 20') and protruding connection pieces for supplying the cooling plate (14, 14') with a coolant. The furnace shell has connection openings therein for interconnecting the connection pieces of adjacent cooling plates (14, 14') from the outer side of said furnace shell. At least one of the connection pieces is formed by a tube bend (26, 26') that protrudes from an edge face (18, 18') of the plate body (20, 20') and that has a connection end (30, 30') to extending through one of the connection openings in the furnace shell.
Description
Technical field
The present invention relates generally to a kind of cooled furnace wall, particularly a kind of furnace shell with inboard and outside and furnace wall that is lining in the cooling plate of described furnace shell inboard of comprising.Each has the plate body that has the outstanding web member that is used for refrigerant in these cooling plates.Have connection opening in the described furnace shell, can make the outstanding web member of adjacent cooling plate interconnected from the outside of described furnace shell.
Background technology
At metallurgical furnace, particularly the furnace shell inboard of blast furnace (blast funace) is lined with cooling plate as everyone knows.Such cooling plate, be otherwise known as " stave (stave) ", comprise orthogonal, in the plate body of solid (solid) of a plurality of cooling channels is arranged.The web member outstanding from the dorsal part of described cooling plate extends in the cooling channel of cooling plate.These web members pass connection opening in the furnace shell in the mode of sealing.In the outside of furnace shell, be connected to the water coolant dispensing loop with the web member of the interconnected adjacent cooling plate of flexible metal tube and with cooling plate.
The plate body of this class cooling plate is made by cast iron (particularly spheroidal graphite cast iron) or copper or copper alloy, perhaps also uses steel manufacturing in recent years.In by castiron cooling plate, general using is cast into the U-shaped steel pipe and forms the cooling channel, and wherein the end of cast-in is outstanding as web member from described plate body dorsal part.But in all cooling plates of being made by copper or steel, described cooling channel all is to be formed directly in the solid cooling plate body.
DE 2907511 discloses a kind of by the cooling plate that forges or rolling copper billet is made.Cooling channel in the described copper billet is the blind hole of being made by mechanical deep drilling (blind bore).The opening of these blind holes seals by soldering therein or welding chock plug (plug).In described blind hole, got out connecting hole from described cooling plate dorsal part, insert in these connecting holes and soldering or welding location be used for the web member that refrigerant is supplied with or refrigerant returns then.
WO 98/30345 describes a kind of technology of making cooling plate, wherein produces the cooling plate blank by continuous casting.Inset in continuous casting mold is created in casting direction mobile passage, and this forms the cooling channel in final cooling plate.By described relatively casting direction transversely carry out cutting twice, isolate a plate from the continuous casting blank, form two end faces like this, wherein the distance of these two end faces is corresponding to the desired length of cooling plate.In next manufacturing step, with the vertical direction of plate body back surface on pierce and form connecting hole in the plate body, form like this in the passage that opening enters into perforation.Afterwards web member is inserted in the connecting hole and soldering or welding location, the distolateral opening of passage seals by soldering therein or welding chock plug.
In DE A 2907511, can both produce high-quality cooling plate body by copper or copper alloy with the technology described in the WO 98/30345.But, and have the cooling plate that is cast into cooling tube or compare with the cooling plate of moulding die casting (mould-cast), have the higher relatively shortcoming of transitional region internal pressure loss between cooling channel and web member by the final cooling plate of these two kinds of explained hereafter.
WO 00/36154 proposes by the pressure-losses in the copper cooling plate that drip molding is inserted into the cooling channel that reduces to have casting in the otch (cut-out) in the described cooling plate body or get out, thereby forms the guiding channel that heat-eliminating medium is had the optimization flowing environment.But this scheme is taken a lot of work relatively, thereby causes the production cost of cooling plate higher.
Summary of the invention
An object of the present invention is to optimize the connection between the cooling plate in the aforementioned furnace wall.
According to a first aspect of the invention, this purpose realizes in the following way: the web member that is formed cooling plate by pipe bend (tube bend) outstanding from the edge surface (i.e. a narrow side) of described plate body and that have a coupling end that extends through a connection opening in the furnace shell.Such web member can be formed by for example 90 ° pipe bend, and first end of pipe bend is inserted in the opening of the cooling channel in the edge surface of plate body.In other words, described web member no longer vertically passes the dorsal part of described cooling plate body and forms opening and enters described cooling channel, but passes an edge surface of described cooling plate body extending axially of cooling channel.Finally, described cooling fluid turns in pipe bend web member self, and this makes the pressure-losses relatively low.
Be further appreciated that the present invention can significantly simplify the production that the cooling channel directly is formed at the solid intravital cooling plate of plate.In fact, the opening of the cooling channel in the edge surface of cooling plate body no longer must seal by soldering therein or welding chock plug, and also no longer needs to get out independent connecting passage from the dorsal part of cooling plate for these web members.The technology known to DE-A-2907511, available through hole replaces blind hole, simplifies the cleaning of the cooling channel of the system of boring.In addition, also avoided can assembling usually sand, bead and rust grain with and/or form the dead end part (that is, the channel end that no fluid passes through) of air pocket and steam bubble, this makes the cooling power of cooling plate and work-ing life be improved.In addition, because heat-eliminating medium directly flows through the top and the bottom of cooling plate now, bottom and vertical cooling significantly improve.
The cooling channel directly is formed at cooling plate in the solid plate body can for example comprise the cooling plate body with the continuous casting of being made by copper or copper alloy that is cast into the cooling channel, have and bore or the forging of making by copper or copper alloy of the cooling channel of mill or a cooling plate body of roll extrusion, perhaps have and bore or the cooling plate body that is formed from steel of the cooling channel of mill.Under cooling plate body situation about making, use usually by copper or copper alloy or the pipe bend made by stainless steel by copper or copper alloy.Under the situation that the cooling plate body is formed from steel, the pipe bend that preferred steel is made.
Usually, vertical cooling plate promptly has the cooling plate of perpendicular flow cooling channel, is used among the present invention.But, but also usage level cooling plate, meaning promptly has the cooling plate of horizontal flow cooling channel.Under the situation of vertical cooling plate, a cooling channel forms an opening on the cooling plate body or in the lower rim face.Under the situation of horizontal cooling plate, a cooling channel forms an opening in left side of cooling off plate body or right-hand edge face.
According to the present invention, the pipe bend web member of the cooling plate of adjacent two polyphones near-earth relatively is laid in together.This is useful to connection opening and interconnected web member are set in furnace shell.
The pipe bend web member that preferably connects two cooling plates by flexible connecting device.According to a further aspect in the invention, these flexible connecting devices are accommodated in the connecting box of sealing, and this connecting box is arranged on the furnace shell outside and goes up also preferred by removable blind flange sealing.This has eliminated the needs to sealed tube passage costliness, that pass furnace shell, and therefore saves a large amount of times that cooling plate is installed.In addition, be appreciated that such connecting box also can formulate size in this way, promptly cooling plate can shift out or put in the described stove from described stove by described connecting box.
Flexible connecting device preferably includes an offsetting pipe elbow, is used to connect the tube bend ends of two cooling plates in the connecting box, and differential (the differential movement) of compensation cooling plate.Compare with the metallic hose of routine, the offsetting pipe elbow significantly reduces the pressure-losses, also has longer work-ing life.
Be the distance between the edge surface that reduces adjacent two cooling plates, second end of second end of the pipe bend of first cooling plate and the pipe bend of second cooling plate can be provided with embarks on journey.In this case, flexible connecting device can for example comprise and is arranged on a bend loss that in the connecting box, roughly is the racing car knob-shaped.Such shape guarantees to absorb the required elastic force of elementary errors motion of described cooling plate.
As an alternative solution of connecting box, the connection opening in the furnace shell can for example be covered by a sleeve part.Corresponding each coupling end of sleeve part has independent pass through openings, and each of these coupling ends is connected to sleeve part by a loop expansion pipe with sealing means.
For relative furnace interior protective tube elbow, can before the pipe bend at the edge surface place of cooling plate, the plate extension be set.
If there are two row cooling plates to be configured to each other directly to be provided with vertically, the vertical engagement that belongs between the cooling plate that vertical engagement (join) between row's the cooling plate can belong to row down relatively misplaces.In this set, belonging to down, the pipe bend of row's cooling plate can be connected to the pipe bend that belongs to two adjacent cooling plates arranging.
Web member is preferably tilted to the furnace shell inboard by the edge surface of its outstanding plate body.This can make being close together by the cooling plate setting of the web member connection of cooling plate.In addition, the pipe bend web member is placed in the range of defilade at cooling plate edge of inclination, and therefore to the thermal radiation of small part protection from furnace interior.If two cooling plates are connected, web member is tilted by its outstanding preferred mirror image of opposite edges face ground, and they define a wedge shape space that narrows down to the inside of stove thus.
Two cooling plates that connect for the web member that makes by cooling plate are close together with being provided with more, web member has first bend in the midplane of the exit of plate body edge surface, plate body, afterwards with the vertical plane of this midplane of plate body in have second bend.Described web member can preferably be made up of one 30 ° of pipe bends and one 90 ° of pipe bends, and its medullary ray is positioned at mutually perpendicular two planes.In the following manner, adjacent two cooling plates are set to up and down or neighbouring relations: the outlet of the web member in the outlet of the web member in the edge surface of first cooling plate and the opposite edges face of second cooling plate is axially relatively laid each other, wherein first bend of the pipe bend web member of first cooling plate points to first direction, the first bend directed in opposite directions of the pipe bend web member of second cooling plate.In the present embodiment, second bend of pipe bend web member preferably limits parallel plane of bending, and the distance between the parallel plane of bending is corresponding to 1.1 to 1.5 times of the pipe diameter of pipe bend web member.
Preferably, the chock plug of the pass through openings that wherein has corresponding coupling end made of resilient material is inserted in the connection opening in the furnace shell.This chock plug preferably has the transverse orientation flange (securing flange) that is clamped between cooling plate and the furnace shell.At least two coupling ends are guided through described chock plug and enter in the connecting box on the furnace shell outside, and here they are connected to each other by flexible connecting device.For improving the sealing of connecting box for furnace interior, the connecting box of the part between chock plug and flexible connecting device is preferably by the foam seal material seal.In addition, described connecting box can have leak detector valve in its lower-most point.
The present invention also can be used for having the cooling plate of at least one cooling channel that is formed by cast-in.(this is that for example most cooling plates are by castiron situation).For these cooling plates, at least one end of described pipe is outstanding and formation pipe bend web member from an edge surface of plate body.
Description of drawings
Now connection with figures is described by the preferred embodiments of the present invention, wherein:
Fig. 1 is the longitudinal sectional drawing by first embodiment of cooled furnace wall;
Fig. 2 is the longitudinal sectional drawing by second embodiment of cooled furnace wall;
Fig. 3 is the plan view of first kind of setting of the cooling plate among the embodiment of cooled furnace wall;
Fig. 4 is the plan view of second kind of setting of the cooling plate among the embodiment of cooled furnace wall;
Fig. 5 is the plan view of the third setting of the cooling plate among the embodiment of cooled furnace wall;
Fig. 6 is the longitudinal sectional drawing by the 3rd embodiment of cooled furnace wall;
Fig. 7 is the longitudinal sectional drawing by first modification embodiment illustrated in fig. 6;
Fig. 8 is the longitudinal sectional drawing by second modification embodiment illustrated in fig. 6;
Fig. 9 is the longitudinal sectional drawing by the 3rd modification embodiment illustrated in fig. 6;
Figure 10 is the longitudinal sectional drawing by the 4th embodiment of cooled furnace wall;
Figure 11 is the longitudinal sectional drawing by first modification embodiment illustrated in fig. 10;
Figure 12 is the longitudinal sectional drawing by the 5th embodiment of cooled furnace wall;
Figure 13 is the longitudinal sectional drawing shown in Figure 6 that has more details;
Figure 14 is the plan view of connecting box, and the web member of two cooling plates is interconnected therein; And
Figure 15 is the plan view that has according to the setting of the cooling plate of the connecting box of Figure 14;
Figure 16 is the 3-D view that is inserted into first embodiment of the turbulator in the cooling channel of cooling plate;
Figure 17 is the 3-D view that is inserted into second embodiment of the turbulator in the cooling channel of cooling plate.
Embodiment
It is by cooling plate refrigerative blast furnace that furnace wall 10 as shown in the figure illustrates the present invention.In Fig. 1 and 2, reference number 12 expression furnace shells.Can see the upper end of following cooling plate 14 and last cooling plate 14 ' the lower end on the inboard of furnace shell 12.These cooling plates 14,14 ' be fixed in furnace shell 12 and form the cooling furnace lining of furnace shell 12 inboards by bolt 16." D " expression down the upper limb face 18 of cooling plate 14 and last cooling plate 14 ' lower rim face 18 ' between vertical range.In the embodiment shown in Fig. 1 and 2 this distance " D " approximately corresponding to cooling plate 14,14 ' three times of thickness " E ".
The solid cooling plate body 20,20 that cooling plate 14,14 as illustrated in fig. 1 and 2 ' have is made by copper or copper alloy '.Vertical cooling channel be set directly at solid cooling plate body 20,20 ' in, that is, they pass through, for example, modes such as casting, brill or mill be formed at cooling plate 20,20 ' body material in.These cooling channels 22,22 ' be as extend in parallel pass cooling plate body 20,20 ' the passage that vertically runs through and form.As can be seen, cooling channel 22 is formation opening 24 in the upper limb face 18 of following cooling plate 14 from Fig. 1 and 2, cooling channel 22 ' last cooling plate 14 ' lower rim face 18 ' interior formation opening 24 '.
90 ° of pipe bends of reference number 26 and 26 ' expression heavy-walled made of copper (tube bend), this pipe bend form cooling plate 14,14 ' web member.As can be seen, the mode of the connection opening 32 of second end 30 (being also referred to as coupling end 30) in furnace shell 12 of an end 28 following pipe bends 26 of following pipe bend 26 is welded or soldered in the opening 24, and go up pipe bend 26 ' an end 28 ' above pipe bend 26 ' the mode of the same connection opening 32 of second end 30 ' (be also referred to as coupling end 30 ') in furnace shell 12 be welded or soldered to opening 24 ' in.In this set, two pipe bends 26 and 26 ' the upper limb face 18 of cooling plate 14 down and last cooling plate 14 ' lower rim face 18 ' between the laying that is perpendicular to one another in the freeboard that forms.For relatively the internal shield pipe bend 26 of stove and the freeboard 34 at 26 ' place, the upper limb face 18 of cooling plate 14 down and last cooling plate 14 ' lower rim face 18 ' all be provided with separately towards the plate extension 36,36 of furnace interior '.
In the embodiment shown in fig. 1, following pipe bend 26 by offsetting pipe elbow 40 and with last pipe bend 26 ' be connected, described offsetting pipe elbow 40 be welded to pipe bend 26,26 ' free end 30,30 '.This offsetting pipe elbow 4 will be sent to from the heat-eliminating medium (normally water coolant) that comes out in cooling channel 20 cooling channel 20 ' in, wherein it changes in the temperature correlation of the elastic compensating of vertical direction distance " D ".Offsetting pipe elbow 40 is projected in the connecting box 42 on the outside of furnace shell 12 on connection opening 32 tops that are set in place in furnace shell 12.This connecting box 42 is airtight connected to furnace shell 12, and hermetic closed by removable blind flange (blind flange) 44.After removing blind flange 44, directly arrive offsetting pipe elbow 40 from the outside of furnace shell 12.
In embodiment illustrated in fig. 2, pipe bend 26,26 ' prolongation coupling end 46,46 ' with the sealing mode draw outside the furnace shell 12.For this reason, the connection opening 32 in the furnace shell 12 are covered by sleeve part 48, this sleeve part 48 be each coupling end 46,46 ' formation one passage 49,49 '.In this case, each coupling end 46,46 ' by loop expansion pipe 50,50 ' be connected to sleeve part 48 with sealing means.Described loop expansion pipe 50,50 ' (in Fig. 2, being expressed as corrugated expansion joint) must be designed to absorb coupling end 46,46 ' transverse movement and angular movement.Shared protection chamber 52 around these two loop expansion pipes 50,50 '.In embodiment illustrated in fig. 2, coupling end 46,46 ' will be interconnected by metallic hose unitor for example shown in Figure 13.(term " metallic hose " also can comprise metal enhancement type synthesize flexible pipe).
Fig. 3 illustrates first kind of setting of the cooling plate on the inboard of furnace shell 12. Cooling plate 14,14 ' being perpendicular to one another flushes setting, but half of the vertical dislocation cooling plate of the cooling plate of two adjacent column height.Therefore, the connection opening 32 same vertical dislocations in the furnace shell 12, reduction (weakened) with making furnace shell 12 less degree.This is to the design variant particularly important shown in the right-hand column.In this case, the connection opening 132 in definite in the following manner furnace shell 12 and the size of connecting box 42: after removing blind flange 44 and pipe coupling is separated, cooling plate 14 can shift out from stove or put in the stove by connecting box 42.
Fig. 4 illustrate cooling plate 14,14 on furnace shell 12 inboards ' second kind of setting.These cooling plates 14,14 ' embark on journey ground upper and lower settings, but half of adjacent two row cooling plates dislocation cooling plate width.In this set, belong to following cooling plate 14 last pipe bend 26 each be connected to two adjacent on cooling plates 14 ' pipe bend 26 '.
Fig. 5 illustrate cooling plate 14,14 on furnace shell 12 inboards ' the third setting.These cooling plates 14,14 ' equally embark on journey ground upper and lower settings, belong to adjacent two the row cooling plates misplace slightly.Can observe end 30 that belongs to the following pipe bend 26 of cooling plate 14 and the pipe bend 26 that belongs to cooling plate ' the end 30 ' laying of embarking on journey.Reduced like this upper limb face 18 of time cooling plate 14 and last cooling plate 14 ' lower rim face 18 ' between vertical range " D " (now approximately corresponding to cooling plate 14,14 ' the twice of thickness " E ").In the cooling plate in the left side of Fig. 5, by fixing pipeline section 60 pipe connecting elbows 26,26 ', be to absorb moving of temperature correlation between cooling plate, this pipeline section 60 roughly is the racing car handle shapes.In the cooling plate on the right side of Fig. 5, by metallic hose 62 pipe connecting elbows 26,26 '.
Fig. 6 illustrates another embodiment of cooled furnace wall.In the present embodiment, cooling plate 14,14 ' two edge surfaces 18,18 ' tilt towards the inboard of furnace shell 12 in the mirror image mode, they define a wedge shape space that narrows down to the inside of stove by this way, wherein web member 26,26 ' by this edge surface 18,18 ' from plate body 20,20 ' draw.Each cooling plate 14,14 ' dorsal part and respective edges face 18,18 ' between angle [alpha] preferably in 105 ° to 150 ° scope, be preferably 120 °.In wedge shape space 69, pipe bend web member 26,26 ' roughly with come from the heat radiation screening in the stove.Can think, they be positioned at cooling plate 14,14 ' the range of defilade at edge.In addition, this wedge shape space 69 can be filled with refractory materials, but in this case, cooling plate 14,14 ' and their expansion of web member must do not hindered especially.Because protecting tube elbow web member 26,26 ' make its not thermal radiation relatively well, they also can be made by for example stainless steel.In this article, it should be noted that the pipe bend of being made by stainless steel has better mechanical property and lower price than thick-walled tube elbow made of copper.
Fig. 7 illustrates modification embodiment illustrated in fig. 6.Two plate bodys 20,20 ' on the furnace shell inboard, be set to upper and lower settings vertically.The edge surface 18 of lower body 20 have towards furnace interior, be parallel to upper plate body 20 ' opposite edges face 18 ' inclination nose protruding 70, make this nose protruding 70 with upper plate body 20 ' opposite edges face 18 ' formations from furnace interior towards furnace shell acclivitous gaps 72,12 inboards.This gap 72 that upwards increases towards the inboard of furnace shell 12 makes that for example sedimentary furnace charge is difficult to enter described wedge shape space 69.
Fig. 8 illustrates modification embodiment illustrated in fig. 7.Upper plate body 20 ' edge surface 18 ' have towards furnace interior, be parallel to that the edge surface 18 of lower body 20 tilts nose protruding 70 ', make this nose protruding 70 ' and the edge surface 18 of lower body 20 form 12 inboard downward-sloping gaps 72 from furnace interior towards furnace shell.This downward-sloping on the direction of furnace shell 12 inboards gap 72 makes that for example hot gas is difficult to enter described wedge shape space 69.
Fig. 9 illustrates another modification embodiment illustrated in fig. 7.In this case, the edge surface 18,18 of two inclinations ' each have towards furnace interior nose protruding 70,70 ', nose projection overlaps each other.In this case, these two nose protruding 70,70 ' separated by mazy gap 74.The latter make be difficult to enter as hot gas and sedimentary furnace charge as described in wedge shape space 69.
Figure 10 illustrates another embodiment of cooled furnace wall.Following cooling plate 14 comprises the plate body 20 that is made of copper or steel.But, last cooling plate 14 ' comprise by castiron plate body 20 ', wherein by cast-in 76 ' form cooling channel.Such pipe 76 ' the end by plate body 20 ' edge surface 18 ' draw and form band coupling end 30 ' pipe bend web member 26 ', this coupling end 30 ' pass connection opening 32 in the furnace shell 12.Notice edge surface 18 ' all tilt, web member 26 ' outstanding from the edge surface that tilts at dorsal part in front side and dorsal part.Towards the inclination of furnace interior improved castiron cooling plate 14 ' and the thin cooling plate 14 made of copper or steel between transition.
Figure 11 illustrates a modification embodiment illustrated in fig. 10.In the present embodiment, castiron upper plate body 20 ', with the following cooling plate 14 that copper or steel are made, only all have the edge surface 18 that tilts at dorsal part '.Because plate body 20 and 20 ' two front sides flush, the dorsal part of the plate body 20 that is made of copper or steel and the gap between the furnace shell 12 than by castiron thicker plate body 20 ' dorsal part and the gap between the furnace shell 12 wide.But (not shown) can be reduced by the contraction of for example furnace shell in the dorsal part of the plate body 20 that is made of copper or steel and the gap between the furnace shell 12.
Figure 12 illustrates another embodiment of cooled furnace wall.Following cooling plate 14 and last cooling plate 14 ' all comprise make by cast iron and wherein by the plate body 20,20 of cast-in 76,76 ' form cooling channel '.Edge surface 18,18 ' each comfortable posterior components tilts, pipe bend 26,26 ' outstanding from the oblique edge surface of the inclination of supporting or opposing.
Figure 13 illustrates the further details of the setting of a kind of cooling plate as shown in Figure 6.Can see, have be used for pipe bend web member 26,26 ' coupling end 30,30 ' the chock plug 80 of pass through openings be inserted in the connection opening 32 in the furnace shell 12.Described chock plug 80 is made up of resilient material, thus it can greatly not hinder web member 26,26 ' and cooling plate 14,14 ' freely expand.Chock plug 80 its edge have be clamped in cooling plate 14,14 ' and furnace shell 12 between around locating flange 82.Pass through openings in coupling end 30,30 ' the pass chock plug 80 import in the connecting box 42, here they by have quick-release coupling 86,86 ' to flexibly connect pipeline 84 interconnected.Be right after at chock plug after 80sly, fill a part of zone of connecting box 42 by foamed elastomeric material at coupling end 30,30 ' on every side.The rear end that does not have filled and process and wherein be provided with the connecting box 42 of connecting pipeline 84 has leak detector valve 88 in its lower-most point.If web member 26,26 ' between connection exist to reveal, water coolant can converge in the rear end of connecting box 42.Leak detector valve 88 can be used for checking whether connecting box 42 exists the water of leakage and need not to open the blind flange 44 of connecting box 42.
Figure 14 illustrates the plan view of connecting box 42, wherein two cooling plates 14,14 ' a plurality of web members 26,26 ' interconnected.Can see pipe bend web member 26,26 ' in each, plate body 20,20 ' edge surface 18,18 ' the exit, at first plate body 20,20 ' midplane in (promptly with draw parallel plane plane) have first bend 102,102 ', then with plate body 20,20 ' the vertical plane of midplane in have second bend 104,104 '.Shown in web member 26,26 ' form by for example 30 ° of pipe bends and 90 ° of pipe bends, its medullary ray is positioned at two mutually perpendicular planes.
In Figure 14, cooling plate 14,14 ' upper and lower settings, by this way, the exit point of the pipe bend web member 26 in the edge surface 18 of first cooling plate 14 and second cooling plate 14 ' opposite edges face 18 ' in pipe bend web member 26 ' exit point axially relatively lay.First bend 102 of the pipe bend web member 26 of first cooling plate 14 points to right.On the contrary, second cooling plate 14 ' pipe bend web member 26 ' first bend a 102 ' sensing left side, promptly opposite direction.Second bend 104,104 ' plane of bending 106,106 ' parallel to each other, the distance ' ' d ' ' between them is corresponding to 1.1 to 1.5 times of the pipe diameter of pipe bend web member (26,26 ').Notice, web member 26,26 ' dual crooked two cooling plates 14,14 ' be provided with very closely of allowing.
Figure 15 illustrates the setting of the cooling plate with connecting box shown in Figure 14 42.Each be used to installation of connecting box 42 and removal cooling plate 14,14 '.Can see how connecting box 42 highly interlaces for the furnace shell 14 that excessively do not weaken.
Should understand the pipe bend web member can be preferred for a turbulator (turbulator) is installed in the cooling channel of cooling plate.Figure 16 and 17 illustrate such turbulator 200,200 ' example.Both comprise a turbulator body 202,202 ' and annular mounting flange 204,204 '.Described turbulator body 202,202 ' axially be inserted in the cooling channel.On the shoulder surface in the opening of the cooling channel in the edge surface of described annular mounting flange 204,204 ' be bearing in cooling plate.It is resisted against on this shoulder surface by web member, and the end of web member is inserted into this opening, and by welding or brazing joint sealing be connected to edge surface.Such turbulator can improve heat passage efficient by the lateral velocity component that increases the cooling fluid in the cooling channel.
Claims (32)
1. a cooled furnace wall comprises: have a furnace shell in an inboard and an outside, and lining is at the cooling plate (14,14 ') of the described inboard of described furnace shell; Described cooling plate (14,14 ') in each have plate body (20,20 ') and be used for to described cooling plate (14,14 ') the outstanding web member of supply coolant, and has connection opening in the described furnace shell, described opening makes adjacent cooling plate (14,14 ') web member interconnected from the described furnace shell outside, it is characterized in that, by from described plate body (20,20 ') edge surface (18,18 ') outstanding and have in the described connection opening of passing in the described furnace shell and the coupling end (30 that extends, 30 ') pipe bend (26,26 ') form at least one in the described web member.
2. furnace shell according to claim 1 wherein, is connected to a coupling end of a pipe bend web member of one first cooling plate by flexible connecting device one coupling end of one pipe bend web member of one second adjacent cooling plate.
3. furnace shell according to claim 2, wherein, a connecting box is arranged on the described outside of described furnace shell, one top in the described connection opening; And described coupling end (30,30 ') extends in the described connecting box, and described coupling end is interconnected by described flexible connecting device in described connecting box.
4. furnace shell according to claim 3, wherein, described connecting box is by removable blind flange sealing.
5. furnace shell according to claim 4, wherein, the size of determining described connecting box makes in the described cooling plate (14,14 ') to remove or to put into described stove from described stove by described connecting box.
6. furnace shell according to claim 5, wherein, the adjacent connection opening vertical dislocation in described furnace shell.
7. according to any described furnace shell in the claim 3 to 6, wherein, described flexible connecting device comprises an offsetting pipe elbow that is arranged in the described connecting box.
8. according to any described furnace shell in the claim 3 to 6, wherein, described flexible connecting device comprises and is arranged on a bend loss that in the described connecting box, roughly is the racing car handle shapes.
9. according to any described furnace shell in the claim 3 to 6, wherein, described flexible connecting device comprises a metallic hose, and this metallic hose is arranged in the described connecting box, connects with the described coupling end (30,30 ') of pair of pipes elbow web member (26,26 ') in described connecting box.
10. furnace shell according to claim 2, wherein, the connection opening in described furnace shell is covered by a sleeve part, and corresponding each coupling end of this sleeve part has independent pass through openings (49,49 '); And each of described coupling end (46,46 ') is connected to described sleeve part by loop expansion pipe (50,50 ') with sealing means.
11. according to any described furnace shell in the claim 2 to 10, wherein, plate extension (36,36 ') is arranged on that described web member (26,26 ') is preceding, the described edge surface of described cooling plate (18,18 ') is located, and makes its relative furnace interior described web member (26,26 ') of screening.
12., wherein, comprise two row cooling plates according to any described furnace shell in the claim 2 to 10, directly vertically be provided with up and down each other, belong to vertical engagement between the up cooling plate with respect to the vertical engagement dislocation that belongs between the descending cooling plate.
13. furnace shell according to claim 12, wherein, the described pipe bend web member that belongs to descending cooling plate is connected to the pipe bend web member of two the adjacent cooling plates that belong to up.
14. according to any described furnace shell in the claim 1 to 13, wherein, the described edge surface (18,18 ') of described plate body (20,20 ') is to the described inboard inclination of described furnace shell, and wherein said pipe bend web member (26,26 ') is outstanding by described edge surface.
15. furnace shell according to claim 14, wherein, the dorsal part of the described relatively cooling plate of the edge surface of described inclination (18,18 ') is formed on the angle between 105 ° and 135 °.
16. furnace shell according to claim 15, wherein, the dorsal part of the described relatively cooling plate of the edge surface of described inclination (18,18 ') forms and is approximately 120 ° angle.
17. according to claim 14,15 or 16 described furnace shells, wherein, for passing through interconnected described two cooling plates (14,14 ') of described web member (26,26 '), opposed edges face (18,18 ') tilts in the mirror image mode, they define a wedge shape space that narrows down towards the inside of described stove thus, and wherein said pipe bend web member (26,26 ') is outstanding by described edge surface.
18. furnace shell according to claim 17, wherein, the plate body (20,20 ') of described two cooling plates (14,14 ') is set to each other directly vertically to be provided with up and down, makes a upper limb face of described lower body directly towards the edge surface once of described upper plate body; And the described upper limb mask of described lower body has the nose projection with the described lower rim face parallel oblique of described upper plate body, makes the described lower rim face of described nose projection and described upper plate body form towards an acclivitous gap, the described inboard of described furnace shell.
19. furnace shell according to claim 17, wherein, the plate body (20,20 ') of described two cooling plates (14,14 ') is set to each other directly vertically to be provided with up and down, makes a upper limb face of described lower body directly towards the edge surface once of described upper plate body; And the described lower rim mask of described upper plate body has the nose projection with the described upper limb face parallel oblique of described lower body, makes the described upper limb face of described nose projection and described lower body form towards a downward-sloping gap, the described inboard of described furnace shell.
20. furnace shell according to claim 17, wherein, the edge surface of described two inclinations (18,18 ') has the nose projection (70,70 ') towards described furnace interior separately, and described two nose projectioies (70,70 ') overlap each other.
21. according to any described furnace shell in the claim 1 to 20, wherein, described web member (26,26 ') has one first bend and is having one second bend thereafter in the plane perpendicular to the described midplane of described plate body (20,20 ') in the midplane of the exit of described edge surface (18,18 '), described plate body (20,20 ').
22. furnace shell according to claim 21, wherein, described web member (26,26 ') is made up of one 30 ° of pipe bends and one 90 ° of pipe bends, and wherein, the medullary ray of described pipe bend is positioned at mutually perpendicular plane.
23. according to claim 21 or 22 described furnace shells, wherein, comprise two adjacent cooling plates (14,14 '), be arranged to by this way up and down or neighbouring relations: the outlet of the web member in the outlet of the web member in an edge surface of described first cooling plate and the opposed edges face of described second cooling plate is axially relatively laid each other; Wherein, described first bend of the web member of described first cooling plate points to first direction; The described first bend directed in opposite directions of the web member of described second cooling plate.
24. furnace shell according to claim 23, wherein, described second bend of described web member limits parallel plane of bending, and the distance between the described parallel plane of bending is corresponding to 1.1 to 1.5 times of the pipe diameter of described pipe bend web member (26,26 ').
25. according to claim 23 or 24 described furnace shells, wherein,
The opposite edges face (18,18 ') of two described plate bodys (20,20 ') tilts in the mirror image mode, makes to define a wedge shape space that narrows down to the inside of described stove;
The described coupling end of one pipe bend web member of described first cooling plate extends through the described connection opening behind the edge surface of the inclination of described second cooling plate; And
The described coupling end of one pipe bend web member of second cooling plate extends through the described same connection opening behind the edge surface of the inclination of described first cooling plate.
26. according to any described furnace shell in the claim 1 to 25, wherein, comprise a chock plug of being made by resilient material, this chock plug is inserted among in the described connection opening in the described furnace shell one.
27. furnace shell according to claim 26, wherein, described chock plug has the transverse orientation flange that is clamped between described cooling plate (14,14 ') and the described furnace shell.
28. according to claim 26 or 27 described furnace shells, wherein,
One connecting box is set on the described outside of described furnace shell, above described connection opening;
At least two coupling ends (30,30 ') pass described chock plug and extend in this connecting box, and they are interconnected by flexible connecting device in this connecting box; And
The part between described chock plug and described flexible connecting device of described connecting box is by the foam seal material seal.
29. according to claim 27 or 28 described furnace shells, wherein, described connecting box has a leak detector valve in its lower-most point.
30. according to any described furnace shell in the claim 1 to 29, wherein, a cooling plate has at least one cooling channel (22,22 ') that directly is formed in the solid plate body (20,20 '); Described cooling channel (22,22 ') forms an opening (24,24 ') in the described edge surface (18,18 ') of described plate body (20,20 '); And first end (28,28 ') of described pipe bend (26,26 ') is inserted in the described opening (24,24 ') in the described edge surface (18,18 ').
31. furnace shell according to claim 30 wherein, also comprises a turbulator (200,200 ') that is installed in the described cooling channel, wherein,
Described turbulator comprises a turbulator body (202,202 ') and an annular mounting flange (204,204 ');
Described turbulator body (202,202 ') axially is inserted in the described cooling channel;
Described annular mounting flange (204,204 ') is bearing on the shoulder surface in the described opening of described cooling channel; And
Described first end (28,28 ') of the described pipe bend (26,26 ') by being inserted into the described opening (24,24 ') in the described edge surface (18,18 ') makes described annular mounting flange (204,204 ') be resisted against described shoulder surface.
32. according to any described furnace shell in the claim 1 to 29, wherein,
One cooling plate has at least one cooling channel (22,22 ') that is formed by cast-in; And
Described pipe bend web member (26,26 ') is given prominence to and formed at least one end of described pipe from the edge surface (18,18 ') of described plate body (20,20 ').
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03008562.5 | 2003-04-14 | ||
| EP03008562A EP1469085A1 (en) | 2003-04-14 | 2003-04-14 | Cooling plate for a metallurgical vessel |
| LU91025 | 2003-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1761761A true CN1761761A (en) | 2006-04-19 |
| CN100523226C CN100523226C (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480007721XA Expired - Fee Related CN100523226C (en) | 2003-04-14 | 2004-04-14 | Cooled furnace wall for a metallurgical vessel |
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| Country | Link |
|---|---|
| CN (1) | CN100523226C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613555A (en) * | 2013-12-20 | 2018-10-02 | 魁北克9282-3087公司（加钛顾问公司） | The method of metallurgical furnace and the existing flame retardant coating of repacking for smelting mineral |
| CN109708095A (en) * | 2019-02-27 | 2019-05-03 | 西安热工研究院有限公司 | A kind of easy disassembly formula low-level (stack-gas) economizer system |
| CN110382722A (en) * | 2017-02-09 | 2019-10-25 | 保尔沃特股份公司 | Coldplate for metallurgical furnace |
| CN112762719A (en) * | 2020-12-28 | 2021-05-07 | 张琪 | Metallurgy high-temperature furnace cast copper cooling wall |
-
2004
- 2004-04-14 CN CNB200480007721XA patent/CN100523226C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613555A (en) * | 2013-12-20 | 2018-10-02 | 魁北克9282-3087公司（加钛顾问公司） | The method of metallurgical furnace and the existing flame retardant coating of repacking for smelting mineral |
| CN108613555B (en) * | 2013-12-20 | 2020-04-14 | 魁北克9282-3087公司（加钛顾问公司） | Metallurgical furnace for smelting minerals and method for retrofitting an existing refractory layer |
| CN110382722A (en) * | 2017-02-09 | 2019-10-25 | 保尔沃特股份公司 | Coldplate for metallurgical furnace |
| CN109708095A (en) * | 2019-02-27 | 2019-05-03 | 西安热工研究院有限公司 | A kind of easy disassembly formula low-level (stack-gas) economizer system |
| CN109708095B (en) * | 2019-02-27 | 2024-01-30 | 西安热工研究院有限公司 | Make things convenient for dismouting formula low temperature economizer system |
| CN112762719A (en) * | 2020-12-28 | 2021-05-07 | 张琪 | Metallurgy high-temperature furnace cast copper cooling wall |
| CN112762719B (en) * | 2020-12-28 | 2023-08-18 | 青阳县迎春炉料有限公司 | Metallurgical high-temperature furnace copper casting cooling wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100523226C (en) | 2009-08-05 |
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