CN203785452U - Furnace top structure of large-sized arc-shaped porous high-temperature electric furnace - Google Patents
Furnace top structure of large-sized arc-shaped porous high-temperature electric furnace Download PDFInfo
- Publication number
- CN203785452U CN203785452U CN201420053481.8U CN201420053481U CN203785452U CN 203785452 U CN203785452 U CN 203785452U CN 201420053481 U CN201420053481 U CN 201420053481U CN 203785452 U CN203785452 U CN 203785452U
- Authority
- CN
- China
- Prior art keywords
- furnace
- electric furnace
- lining
- box hat
- sidewall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a furnace top structure of a large-sized arc-shaped porous high-temperature electric furnace. The furnace top structure comprises an electric furnace side wall outer steel shell, a wedged annular support beam, a high-temperature stainless steel support ring, a dual-layer enclosed water-cooled steel hoop, an arc-shaped refractory castable integral furnace top lining, a suspension steel frame, two enclosed thick-wall high-temperature stainless steel annular water jackets of different diameters, a water cabinet and a hanger, wherein the arc-shaped refractory castable integral furnace top lining is seated on a high-temperature stainless steel support ring; the suspension steel frame is arranged above the furnace lining; the enclosed thick-wall high-temperature stainless steel annular water jackets are arranged in the central high-temperature area of the furnace lining; the water cabinet is connected with the water inlets/outlets of the high-temperature stainless steel annular water jackets; the hanger is arranged in the central high-temperature area of the furnace lining. According to the furnace top structure, important components of large-sized thermal equipment which is difficult to stabilize in a large-sized porous electric furnace are fused with multiple theories of modern industrial equipment design, are combined with multiple current novel materials and use experience on novel material application examples for reference. The furnace top structure has the advantages of safety, stability, long service life, saving of construction materials, easiness in overhauling and maintenance, saving of energy, environmental friendliness and the like.
Description
Technical field
The utility model relates to the large high-temperature electric furnace that use in high temperature main equipment field, specifically a kind of large-scale arch porous high-temperature electric furnace roof construction.
Background technology
In metallurgy, Chemical Manufacture, more and more use large-scale circular electric furnace.Diameter can reach 7 meters, more than 10 meters and even 20 meters, the weight of furnace roof furnace lining can reach tens tons and even hundreds of ton.Because furnace roof has been arranged electrode hole and multiple blanking hole, exhaust smoke hole, measurement thief hole and other technique hole, not only form electrode high temperature trigonum in furnace roof centre, and formed center blanking interference range.Because center hole is many, in the concentrated center of hole, the similar specific surface of furnace lining and hole, furnace lining structure intensity declines, the furnace roof refractory lining softening damage of subsiding in high-temperature region, center, electric furnace top when hot operation.Therefore, electric furnace is in operation, and furnace lining structure intensity is minimum being subject to high temperature and the most serious position of material water eroding and flooding for electric furnace furnace roof center furnace lining, is not enough to resist the operating destruction of body of heater, is the position that the most easily caves in and damage.Due to caving in of electric furnace top, cause Large Electric Furnace blowing out, lose huge.
The Large Electric Furnace top furnace lining of domestic current is flat-top shape, and the fixed form of electric furnace top furnace lining is: arrange at electric steel side wall of outer shell top and fixing huge steel structure support, the furnace roof stove furnace lining of tens tons and even hundreds of ton is hung on steelframe.Like this, the mechanical structure of furnace roof is such: from electric furnace basis, along electric furnace sidewall outer steel shell, connect a huge heavy plane steelframe to center from sidewall outer steel shell top surrounding again, stretch out downward vertically lacing wire from each position of steelframe again, refractory lining is tied up to respectively and in lacing wire, pieces together a planar furnace and foil.The mechanical system on this electric furnace top is the monomer integral planar structure system that surrounding is fixed, unclamp at center, and the shape of steelframe and intensity form whole mechanics support systems on electric furnace top, and the symmetrical centre of the steelframe plane center of gravity that is just.The rigidity that the dilatancy that thermal shock power, mechanical impact power and the electric furnace itself that when out-of-balance force that the gravity of steelframe and furnace lining and installation produce and electric furnace operation, technique is brought produces relies on steelframe centre entirely maintains.Because flat steelframe is surrounding fixed installation, extension is assembled at the dilatancy Jiang Xiang center of furnace roof, produces downward deflection deformation become the bottom of a pan depression along gravity direction.
In the time that electric furnace high-temperature moves, the refractory lining below electric furnace top steelframe and steelframe expands inconsistent.In order not give oblique pulling force and the distortion power outside steelframe weight application, also in order to cater to the expansion feature of steelframe, flat-top electric furnace top furnace lining mostly adopts refractory brick monolithic to be suspended on the mode of furnace roof top girder steel, to lose the independent intensity of furnace roof refractory lining self and the sealing of forfeiture furnace lining as cost, dependency is in furnace roof steelframe, no longer to give the extra burden of steelframe of heavy burden hundreds of ton as far as possible in order to avoid steelframe is torn, distortion, even tilt.
But this is a wrong structure that full of prunes viewpoint causes.Because: solid steelframe is due to the intrinsic metallicity feature of steel again, in the time there is no concrete parcel, it is all an elastomer, in the time receiving external force equally, steelframe is more easily along length and stressed Direction distortion, in large-scale circular flat-top electric furnace furnace top system, steelframe certainly will be all pointed in this out-of-balance force and distortion.In the time that electric furnace high-temperature moves, because steelframe surrounding is fixed, the thermal expansion distortion of steelframe can only be concentrated to furnace roof centre, and owing to hanging heavy refractory lining under steelframe, steelframe central potential must be to lower recess.Steelframe center makes to separate the building block distortion separation of hanging on steelframe to lower recess and produces each other space, making electric furnace high-temperature directly rush at furnace roof steelframe softening is further elongated it, thereby the center at steelframe produces larger downward depressed deformation, finally causes furnace roof steelframe and furnace roof furnace lining together destroyed.To be that furnace roof mechanical system is destroyed cause in the damage of this furnace roof, so once difficulty is repaired in the generation of caving in of the furnace roof center that is in operation.
Utility model content
For solving the problem that in the top use of large-scale porous high-temperature electric furnace, the life-span is short, center easily caves in, the utility model provides a kind of large-scale arch porous high-temperature electric furnace roof construction.
The utility model is that the technical scheme that solves the problems of the technologies described above employing is: a kind of large-scale arch porous high-temperature electric furnace roof construction, comprise the outer box hat of electric furnace sidewall, be fixed on the wedge shape ring-type joist of the outer box hat upper inner wall of electric furnace sidewall, be fixed on the outer box hat madial wall of electric furnace sidewall and be positioned over the high temperature stainless steel backing ring below wedge shape ring-type joist, corresponding to the double-layer seal water cooled steel anchor ear of wedge shape ring-type joist position box hat lateral wall outside electric furnace sidewall, be sitting in the arch castable refractory entirety furnace roof furnace lining on high temperature stainless steel backing ring, the suspension steelframe of furnace lining top, the airtight heavy wall high temperature stainless steel ring-shaped water jacket of two different-diameters in high-temperature region, furnace lining center, the water tank being connected with high temperature stainless steel ring-shaped water jacket Inlet and outlet water and the suspender member of high-temperature region, furnace lining center,
Described arch castable entirety electric furnace furnace roof furnace lining is sitting on a circular joist of high-strength wedge shape, joist is supported by high temperature stainless steel backing ring below, high temperature stainless steel backing ring is directly fixed on the outer box hat madial wall of electric furnace sidewall, joist self is by its inner anchoring piece anchoring, and be fixed on by anchoring piece on the upper inner wall of the outer box hat of electric furnace sidewall, make joist directly hang over the top of the outer box hat of electric furnace sidewall; Outside electric furnace sidewall, on the lateral wall box hat of box hat, the position corresponding with joist is fixed with double-layer seal water cooled steel anchor ear, for strengthening the intensity of the outer box hat of electric furnace sidewall, offset and decompose the oblique thrust of furnace lining to the outer box hat of electric furnace sidewall, preventing the outer outside enlargement deformation of box hat internal diameter of electric furnace sidewall.
The mechanical system of described furnace lining has two, one derives from the power of lifting of the mechanical system of body of heater own, this power is transmitted to furnace lining by joist, another is the suspension steelframe by being arranged on top, high-temperature region, furnace lining center, and draw suspender member on suspension steelframe, the lower end of suspender member is embedded in the center high temperature furnace lining of furnace lining, hang center to furnace lining, subside to clear up the furnace roof center that sagging power that large-scale overweight furnace roof furnace lining weight causes causes, crack the operating thermoresonance power of electric furnace resonates to furnace roof furnace lining center simultaneously, hang the fixing isolated with electric furnace shaft mechanical system of steelframe.
On described suspension steelframe, fix the upper end of suspender member, the lower end of suspender member is embedded in the furnace lining of furnace roof center, suspension steel-frame is fixed on electric furnace upper floor floor, or the supporting construction of separately building fixing suspension steel-frame, but this supporting construction is isolated with electric furnace support system, the part that suspender member is embedded in furnace lining is the fire proof material brick with many emboss pits.
The high-temperature region, center of described furnace lining arranges local water-cooled, ring-shaped water jacket surrounding electric poles cylindrical and electrode inner circle that water-cooled is simmered into by high temperature resistant stainless steel thick-walled seamless steel pipes arrange respectively, the temperature of furnace lining of furnace roof high-temperature region and prevent the softening furnace roof furnace lining that burns of high-temperature region furnace lining when reducing electric furnace operation;
Described ring-shaped water jacket does not have longitudinal seam and interface completely in electric furnace furnace roof furnace lining, and the Inlet and outlet water interface of ring-shaped water jacket is drawn furnace roof and entered in water tank, and water tank hangs over the place on the outer box hat of electric furnace sidewall or outside electric furnace, gives furnace roof high-temperature region water-cooled simultaneously.
The mechanical structure of lifting of described furnace lining is mainly by the outer box hat of electric furnace sidewall and the suspension steelframe and the suspender member that are aided with on electric furnace top, the common support of furnace lining to be completed, enough powerful and stable for ensureing the intensity of the outer box hat of electric furnace sidewall, outside electric furnace sidewall, box hat outside installs double-layer seal water cooled steel anchor ear additional corresponding to the position of joist, double-layer seal water cooled steel anchor ear has been strengthened the intensity of the outer box hat of electric furnace furnace roof furnace lining root electric furnace sidewall, box hat outside this position can be out of shape because of the stressed outer support of tilted direction, and the heat of high temperature that furnace lining is passed on box hat outside electric furnace sidewall by joist and high temperature stainless steel backing ring is taken away by Double water-cooled anchor ear rapidly, steel makes the outer box hat of electric furnace sidewall, joist, high temperature stainless steel backing ring, double-layer seal water cooled steel anchor ear and furnace lining all obtain cooling.
Described double-layer seal water cooled steel anchor ear is made into airtight annular trough shaped shape with steel plate, and with the electric furnace lateral wall box hat full weld that closely cooperates, double-layer seal water cooled steel anchor ear bottom is fixed with angle iron supporting, the Inlet and outlet water interface for water outlet and electric furnace top furnace lining ring-shaped water jacket of double-layer seal water cooled steel anchor ear Inlet and outlet water interface shares a water tank, and double-layer seal water cooled steel anchor ear shares water source.
In the utility model, at position, high-temperature region, center, electric furnace top, make water jacket with high temperature resistant heavy wall stainless steel tube and be configured in furnace lining high-temperature region, for preventing that cooling jacket joint from leaking in electric furnace, the Inlet and outlet water joint of water jacket is arranged in the airtight water tank outside electric furnace body;
Described furnace roof is to wrap up some heat-resistance stainless steel metal anchorages and high-temperature refractory anchoring turns, build the airtight domes that form building by designed arch by high-temperature-resistant high castable refractory, the bottom of furnace roof is sitting on the wedge shape joist around box hat madial wall, the centre of furnace roof turns on the steelframe that is suspended on furnace roof top by some high-temperature flame-proof anchorings, to stablize furnace roof furnace lining position, pin down the depressed deformation of furnace roof high-temperature area furnace roof furnace lining, further part is suspended in another fixed platform and forms and independently fixed system of support system phase;
The described suspension steelframe independent mechanical system outside electric steel structure of taking root, can be factory building upper strata roof truss laminate, also can set up another from ground separately and the incoherent support of electric furnace body;
Described wedge shape joist hangs on the outer box hat madial wall of electric furnace, and hanging force is by being weldingly fixed on the heat-resistance stainless steel anchoring piece on the outer box hat madial wall of electric furnace top and the high temperature resistant fire-resistant anchoring life of changing the line of production.Wedge shape joist below is welded and fixed high temperature resistant stainless steel backing ring on electric furnace box hat madial wall, for separating electric furnace sidewall furnace wall, wedge shape joist is carried out to supplemental support;
The outer box hat lateral wall of the described electric furnace position corresponding with wedge shape joist arranges the two steel hoops of stationary annular; make outer box hat distortion to offset and to prevent that furnace roof box hat outside furnace sidewall top produces huge oblique thrust in the time that electric furnace high-temperature moves, protect the stable of electric furnace sidewall furnace wall and electric furnace furnace roof furnace lining.For improving electric furnace top high-temperature region, center furnace lining intensity and reducing furnace roof furnace lining center temperature, in the furnace lining of center, bury the ring-type cooling jacket of two different-diameters underground, water jacket forms entire body by the high temperature stainless steel thick-walled seamless steel pipes system of simmering does not have joint welding, ensures water safety.Water jacket Inlet and outlet water joint outside makes sealing water tank again, and water jacket Inlet and outlet water joint is enclosed in water tank, and water tank can directly hang on the outer box hat of electric furnace sidewall, also can be fixedly placed in the solution space outside electric furnace body.
Beneficial effect: compared with prior art, the utlity model has following advantage:
1) furnace roof being hung to mechanics structural change is that to lift mechanical system be that main, hanging balancing mechanical system is auxiliary mechanical structure, and two kinds of mechanical systems have increased the stability on electric furnace top greatly, have reduced the useless configuration of furnace top system, save great deal of steel;
2) fixing method that adopts separate support system and hanging system to combine, makes furnace roof furnace lining accept the support of two different mechanical systems, thereby the heat that while having cracked body of heater operation, hot equipment produces is shaken the destruction to furnace roof center altogether;
3) shape of furnace roof is made as to arcuate in shape, make lower furnace portion in furnace roof furnace lining cambered surface, creep and disperse to form angle of reflection and reflect again and return to burner hearth to the heat of furnace roof center transmitting, change the serious situation that heat of high temperature that open hearth withstands on electric furnace burner hearth in service high-temperature region reflects repeatedly in center, open hearth top vertically, reduced thermic load and the temperature of furnace roof furnace lining center;
4) direction of in use temperature distortion of the furnace roof of arch is evenly outwards to change along spherical crown surface, the intensity of monolithic lining self of more expanding is larger, bulk strength is directly delivered to the region of furnace roof furnace lining center high temperature multiple hole and gives this position furnace lining with intensity support, multiple hole region, furnace roof center is made for to a high-strength grid structure, makes up because of the excessive furnace roof of the hole volume center furnace lining structure shortcoming of insufficient strength very little;
5) the airtight domes of furnace roof have completely cut off the straight-through outside passage in upper furnace space, and hot device interior is disperseed along furnace roof intrados to the heat of furnace roof radiation, are finally all reflected back burner hearth and enter heat energy technical process.The airtight domes of furnace roof have also intercepted extraneous air and have flowed into electric furnace, the carbon configuring in the electrode on top, electric furnace molten bath and material is because anoxic is stablized, electric furnace upper furnace that to burn the situation of bell little, the heat of electric furnace all derives from the vortex induction heating of electrode and material in molten bath, reduce the temperature of bell, the thermal efficiency that has improved hot equipment, has been conducive to safety in production;
6) as large-scale heating equipment, electric furnace is because of the difference of technological requirement with the accident sometimes occurring, and high temperature can occur electric furnace, and the thermal shock of high-strength refractory furnace lining 1500 DEG C or more softened and lost intensity and damage next time.The utility model has configured safe cooling jacket in furnace lining high-temperature part, the moment cooling the high-temperature part at furnace roof center, make furnace lining keep hardness and intensity, can make furnace lining more extend service life;
7) can there be diverse furnace lining profile and fabrication form more flexibly with the arch combined kiln lining that castable refractory is built, can build with multiple furnace lining material according to technological requirement and thermic load situation, electric furnace top furnace lining is overhauled among a small circle and become possibility, long service life and energy-saving safe, save construction fund and reduce the shutdown maintenance time, this furnace roof has outstanding advantage to strengthening the strength and stability of whole electric furnace;
8) this electric furnace of the present utility model top furnace lining, can build and reach 30 meters of diameters with interior Large Electric Furnace furnace roof, for design with build larger more energy-conservation furnace equipment and created condition, has solved the version on the electric furnace top that hundreds of ton is heavy and has built engineering method.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Reference numeral: 1, the outer box hat of electric furnace sidewall, 2, joist, 3, high temperature stainless steel backing ring, 4, double-layer seal water cooled steel anchor ear, 5, furnace lining, 6, hang steelframe, 7, ring-shaped water jacket, 8, water tank, 9, suspender member.
Detailed description of the invention
As shown in the figure, a kind of large-scale arch porous high-temperature electric furnace roof construction, comprise the outer box hat 1 of electric furnace sidewall, be fixed on the wedge shape ring-type joist 2 of the outer box hat 1 upper inner wall of electric furnace sidewall, be fixed on outer box hat 1 madial wall of electric furnace sidewall and be positioned over wedge shape ring-type joist 2 high temperature stainless steel backing ring 3 below, corresponding to the double-layer seal water cooled steel anchor ear 4 of wedge shape ring-type joist 2 positions box hat 1 lateral wall outside electric furnace sidewall, be sitting in the arch castable refractory entirety furnace roof furnace lining 5 on high temperature stainless steel backing ring 3, the suspension steelframe 6 of furnace lining 5 tops, furnace lining 5 high-temperature regions arrange the airtight heavy wall high temperature stainless steel ring-shaped water jacket 7 of or several different-diameters, the water tank 8 being connected with high temperature stainless steel ring-shaped water jacket 7 Inlet and outlet waters and the suspender member 9 of furnace lining 5 high-temperature regions, center,
Described arch castable entirety electric furnace furnace roof furnace lining 5 is sitting on a circular joist 2 of high-strength wedge shape, joist 2 is supported by high temperature stainless steel backing ring 3 below, high temperature stainless steel backing ring 3 is directly fixed on outer box hat 1 madial wall of electric furnace sidewall, joist 2 self is by its inner anchoring piece anchoring, and be fixed on by anchoring piece on the upper inner wall of the outer box hat 1 of electric furnace sidewall, make joist 2 directly hang over the top of the outer box hat 1 of electric furnace sidewall; Outside electric furnace sidewall, on the lateral wall box hat of box hat 1, the position corresponding with joist 2 is fixed with double-layer seal water cooled steel anchor ear 4, for strengthening the intensity of the outer box hat 1 of electric furnace sidewall, offset and decompose the oblique thrust of furnace lining 5 to the outer box hat 1 of electric furnace sidewall, preventing the outer outside enlargement deformation of box hat 1 internal diameter of electric furnace sidewall.
The mechanical system of described furnace lining 5 has two, one derives from the power of lifting of the mechanical system of body of heater own, this power is transmitted to furnace lining 5 by joist 2, another is the suspension steelframe 6 by being arranged on furnace lining 5 tops, high-temperature region, center, and draw suspender member 9 on suspension steelframe 6, the lower end of suspender member 9 is embedded in the center high temperature furnace lining of furnace lining 5, hang center to furnace lining 5, subside to clear up the furnace roof center that sagging power that large-scale overweight furnace roof furnace lining weight causes causes, crack the operating thermoresonance power of electric furnace resonates to furnace roof furnace lining center simultaneously, hang the fixing isolated with electric furnace mechanical system of steelframe 6.
On described suspension steelframe 6, fix the upper end of suspender member 9, the lower end of suspender member 9 is embedded in the furnace lining 5 of furnace roof center, suspension steel-frame 6 is fixed on electric furnace upper floor floor, or the supporting construction of separately building fixing suspension steel-frame 6, but this supporting construction is isolated with electric furnace support system, the part that suspender member 9 is embedded in furnace lining is the fire proof material brick with many emboss pits.
The high-temperature region, center of described furnace lining 5 arranges local water-cooled, ring-shaped water jacket 7 surrounding electric poles cylindricals and electrode inner circle that water-cooled is simmered into by high temperature resistant stainless steel thick-walled seamless steel pipes arrange respectively, the temperature of furnace lining of furnace roof high-temperature region and prevent the softening furnace roof furnace lining that burns of high-temperature region furnace lining when reducing electric furnace operation;
Described ring-shaped water jacket 7 does not have seam and interface completely in electric furnace furnace roof furnace lining, and the Inlet and outlet water interface of ring-shaped water jacket 7 is drawn furnace roof and entered in water tank 8, and water tank 8 hangs on the outer box hat 1 of electric furnace sidewall contrast and carries out coolingly, gives furnace roof high-temperature region water-cooled simultaneously.
The mechanical structure of lifting of described furnace lining 5 is mainly by the outer box hat 1 of electric furnace sidewall and double-layer seal water cooled steel anchor ear 4, the common support of furnace lining 5 to be completed, enough powerful and stable for ensureing the intensity of the outer box hat 1 of electric furnace sidewall and double-layer seal water cooled steel anchor ear 4 and bond strength between the two, outside electric furnace sidewall, box hat 1 outside installs double-layer seal water cooled steel anchor ear 4 additional corresponding to the position of joist 2, double-layer seal water cooled steel anchor ear 4 ensures the stability of joist 2 and furnace lining 5 is taken away with water-cooled form rapidly by joist 2 and high temperature stainless steel backing ring 3 heat of high temperature that box hat 1 top passes over outside electric furnace sidewall, make the outer box hat 1 of electric furnace sidewall, joist 2, high temperature stainless steel backing ring 3, double-layer seal water cooled steel anchor ear 4 and furnace lining 5 all obtain cooling.
Described double-layer seal water cooled steel anchor ear 4 use steel plates are made into airtight annular trough shaped shape, and with the electric furnace lateral wall box hat full weld that closely cooperates, double-layer seal water cooled steel anchor ear 4 bottoms are fixed with angle iron supporting, the upper plane of the double-layer seal water cooled steel anchor ear 4 Inlet and outlet water interface that is all arranged in three places ensures the water supply of its inner lead, and the water tank 8 being connected with the Inlet and outlet water interface of electric furnace top furnace lining ring-shaped water jacket 7 and double-layer seal water cooled steel anchor ear 4 share water source.
In the utility model, outer box hat 1 upper inner of electric furnace sidewall is determined wedge shape annulus joist 2 bottom, position welding high temperature stainless steel backing rings 3, on the outer box hat madial wall on high temperature stainless steel backing ring 3 tops, fix the circular joist 2 of high temperature castable wedge shape, box hat 1 outside outside the electric furnace sidewall corresponding with the circular joist 2 of wedge shape, fixed installation double-layer seal water cooled steel anchor ear 4, the high temperature resistant castable refractory of furnace lining 5 use of arch electric furnace furnace roof is made, be sitting on wedge shape ring-type joist 2, different according to flow-route and temperature load, the high-temperature area of arch furnace roof furnace lining 5 center multiple holes, castable lining thickness is increased, reduced thickness >=100 millimeter of other position castable furnace roof furnace linings.At the arch electric furnace top furnace lining 5 some furnace roofs of high temperature porous area configurations center, center suspender members 9,9 one of center, electric furnace top suspender members are fixed on furnace roof upper suspension steelframe 6, and other end is embedded in the furnace lining 5 at center, electric furnace top.The suspension steelframe 6 on furnace roof top is fixed on electric furnace top superstructure floor or sets up in addition the independent support of furnace roof suspension steelframe 6, and the supporting of hanging steelframe 6 must not be connected with the stressed system of electric furnace.In the time making arch electric furnace top furnace lining 5, place respectively as required the airtight ring-shaped water jacket 7 of different-diameter around electrode outer shroud and interior ring in high temperature multiple hole district, the center of furnace lining 5, ring-shaped water jacket 7 use heavy wall high temperature stainless steel seamless pipes are simmered system, and ring-shaped water jacket 7 interfaces are introduced in the water tank 8 of electric furnace outside.Water tank 8 can hang on the outer box hat of the outer furnace sidewall of stove, can share a cooling water source with double-layer seal water cooled steel anchor ear 4.
Claims (6)
1. one kind large-scale arch porous high-temperature electric furnace roof construction, it is characterized in that: comprise the outer box hat (1) of electric furnace sidewall, be fixed on the wedge shape ring-type joist (2) of outer box hat (1) the upper inner wall of electric furnace sidewall, be fixed on outer box hat (1) madial wall of electric furnace sidewall and be positioned over wedge shape ring-type joist (2) high temperature stainless steel backing ring (3) below, corresponding to the double-layer seal water cooled steel anchor ear (4) of wedge shape ring-type joist (2) position box hat (1) lateral wall outside electric furnace sidewall, be sitting in the arch castable refractory entirety furnace roof furnace lining (5) on high temperature stainless steel backing ring (3), the suspension steelframe (6) of furnace lining (5) top, the airtight heavy wall high temperature stainless steel ring-shaped water jacket (7) of two different-diameters in furnace lining (5) high-temperature region, center, the water tank (8) being connected with high temperature stainless steel ring-shaped water jacket (7) Inlet and outlet water and the suspender member (9) of furnace lining (5) high-temperature region, center,
Described arch castable entirety electric furnace furnace roof furnace lining (5) is sitting on a circular joist of high-strength wedge shape (2), joist (2) is supported by high temperature stainless steel backing ring (3) below, high temperature stainless steel backing ring (3) is directly fixed on outer box hat (1) madial wall of electric furnace sidewall, joist (2) self is by its inner anchoring piece anchoring, and be fixed on by anchoring piece on the upper inner wall of the outer box hat (1) of electric furnace sidewall, make joist (2) directly hang over the top of the outer box hat (1) of electric furnace sidewall; On the lateral wall box hat of box hat outside electric furnace sidewall (1), the position corresponding with joist (2) is fixed with double-layer seal water cooled steel anchor ear (4), be used for strengthening the intensity of the outer box hat (1) of electric furnace sidewall, offset and decompose the oblique thrust of furnace lining (5) to the outer box hat (1) of electric furnace sidewall, preventing the outer outside enlargement deformation of box hat (1) internal diameter of electric furnace sidewall.
2. the large-scale arch porous high-temperature of one according to claim 1 electric furnace roof construction, it is characterized in that: the mechanical system of described furnace lining (5) has two, one derives from the power of lifting of the mechanical system of body of heater own, this power is transmitted to furnace lining (5) by joist (2), another is the suspension steelframe (6) by being arranged on top, furnace lining (5) high-temperature region, center, and draw suspender member (9) on suspension steelframe (6), the lower end of suspender member (9) is embedded in the center high temperature furnace lining of furnace lining (5), hang center to furnace lining (5), subside to clear up the furnace roof center that sagging power that large-scale overweight furnace roof furnace lining weight causes causes, crack the operating thermoresonance power of electric furnace resonates to furnace roof furnace lining center simultaneously, hang the fixing isolated with electric furnace shaft mechanical system of steelframe (6).
3. the large-scale arch porous high-temperature of one according to claim 1 electric furnace roof construction, it is characterized in that: the upper end of having fixed suspender member (9) on described suspension steelframe (6), the lower end of suspender member (9) is embedded in the furnace lining (5) of furnace roof center, suspension steel-frame (6) is fixed on electric furnace upper floor floor, or separately build the supporting construction of fixing suspension steel-frame (6), but this supporting construction is isolated with electric furnace support system, the part that suspender member (9) is embedded in furnace lining is the fire proof material brick with many emboss pits.
4. the large-scale arch porous high-temperature of one according to claim 1 electric furnace roof construction, it is characterized in that: the high-temperature region, center of described furnace lining (5) arranges local water-cooled, ring-shaped water jacket (7) surrounding electric poles cylindrical and electrode inner circle that water-cooled is simmered into by high temperature resistant stainless steel thick-walled seamless steel pipes arrange respectively, the temperature of furnace lining of furnace roof high-temperature region and prevent the softening furnace roof furnace lining that burns of high-temperature region furnace lining when reducing electric furnace operation;
Described ring-shaped water jacket (7) does not have longitudinal seam and interface completely in electric furnace furnace roof furnace lining, the Inlet and outlet water interface of ring-shaped water jacket (7) is drawn furnace roof and is entered in water tank (8), water tank (8) hangs over the place of the outer box hat (1) of electric furnace sidewall above or outside electric furnace, gives furnace roof high-temperature region water-cooled simultaneously.
5. the large-scale arch porous high-temperature of one according to claim 2 electric furnace roof construction, is characterized in that: the mechanical structure of lifting of described furnace lining (5) is mainly by the outer box hat (1) of electric furnace sidewall and the suspension steelframe (6) and the suspender member (9) that are aided with on electric furnace pushes up, the common support of furnace lining (5) to be completed, enough powerful and stable for ensureing the intensity of the outer box hat (1) of electric furnace sidewall, box hat outside electric furnace sidewall (1) outside installs double-layer seal water cooled steel anchor ear (4) additional corresponding to the position of joist (2), double-layer seal water cooled steel anchor ear (4) has been strengthened the intensity of the outer box hat (1) of electric furnace furnace roof furnace lining root electric furnace sidewall, box hat outside this position (1) can be out of shape because of the stressed outer support of tilted direction, and the heat of high temperature that furnace lining (5) is passed on box hat (1) outside electric furnace sidewall by joist (2) and high temperature stainless steel backing ring (3) is taken away by Double water-cooled anchor ear (4) rapidly, steel makes the outer box hat (1) of electric furnace sidewall, joist (2), high temperature stainless steel backing ring (3), double-layer seal water cooled steel anchor ear (4) and furnace lining (5) all obtain cooling.
6. the large-scale arch porous high-temperature of one according to claim 1 electric furnace roof construction, it is characterized in that: described double-layer seal water cooled steel anchor ear (4) steel plate is made into airtight annular trough shaped shape, and with the electric furnace lateral wall box hat full weld that closely cooperates, double-layer seal water cooled steel anchor ear (4) bottom is fixed with angle iron supporting, the Inlet and outlet water interface for water outlet and electric furnace top furnace lining ring-shaped water jacket (7) of double-layer seal water cooled steel anchor ear (4) Inlet and outlet water interface shares a water tank (8), and double-layer seal water cooled steel anchor ear (4) shares water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053481.8U CN203785452U (en) | 2014-01-28 | 2014-01-28 | Furnace top structure of large-sized arc-shaped porous high-temperature electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053481.8U CN203785452U (en) | 2014-01-28 | 2014-01-28 | Furnace top structure of large-sized arc-shaped porous high-temperature electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785452U true CN203785452U (en) | 2014-08-20 |
Family
ID=51321630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053481.8U Withdrawn - After Issue CN203785452U (en) | 2014-01-28 | 2014-01-28 | Furnace top structure of large-sized arc-shaped porous high-temperature electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791720A (en) * | 2014-01-28 | 2014-05-14 | 洛阳洛华窑业有限公司 | Large arch-shaped porous high-temperature electric furnace top structure |
| CN110462321A (en) * | 2017-01-30 | 2019-11-15 | 艾美瑞法布有限公司 | Top for electric arc furnaces, metallurgical furnace or refining furnace carries furnace roof and its system |
-
2014
- 2014-01-28 CN CN201420053481.8U patent/CN203785452U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791720A (en) * | 2014-01-28 | 2014-05-14 | 洛阳洛华窑业有限公司 | Large arch-shaped porous high-temperature electric furnace top structure |
| CN110462321A (en) * | 2017-01-30 | 2019-11-15 | 艾美瑞法布有限公司 | Top for electric arc furnaces, metallurgical furnace or refining furnace carries furnace roof and its system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203785452U (en) | Furnace top structure of large-sized arc-shaped porous high-temperature electric furnace | |
| CN101387399B (en) | Fixation structure design and installation method for core separator in large-sized industrial furnace | |
| CN101972897B (en) | Tank top installing and welding process of single-coating double-wall low temperature storage tank | |
| CN103791720B (en) | Large arch-shaped porous high-temperature electric furnace top structure | |
| CN105087023B (en) | A kind of coke dry quenching furnace | |
| CN108996927B (en) | Double-chamber shaft kiln with cooling support upright post | |
| CN104946846B (en) | flue support device | |
| CN206580775U (en) | A kind of new coking coke dry quenching furnace structure | |
| CN102183149A (en) | Metallurgical vessel | |
| CN201293554Y (en) | Large-sized heating-furnace top straight wall steel structure | |
| CN214892607U (en) | Furnace cover of calcium carbide furnace | |
| JPH0252198B2 (en) | ||
| CN109810716B (en) | Construction method for simultaneously replacing bracket brick and cooling section masonry of dry quenching furnace | |
| CN101724738A (en) | Upright thermal treatment furnace for pressure container factory | |
| KR100899358B1 (en) | Method of carrying out supporting structure for bustil pipe | |
| CN102417819B (en) | Novel annular airway of dry quenching coke | |
| CN207066158U (en) | A kind of mineral hot furnace open hearth lid | |
| CN205373409U (en) | Heating furnace with module lining | |
| JP5169034B2 (en) | Coke dry fire extinguishing equipment construction and repair method | |
| CN113264509B (en) | Large vertical self-locking furnace body and industrial furnace with same | |
| CN205710393U (en) | Glass melter stove | |
| CN213020915U (en) | Reverberatory furnace roof reinforcing device | |
| CN219972347U (en) | Blast furnace structure for preventing bottom plate of furnace from upwarp and bottom gas leakage | |
| CN101871645A (en) | Immersed gas burner used for smelting aluminium and aluminum alloy | |
| CN211451388U (en) | Vault structure of hot blast stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LUOYANG LUOHUA POWDER ENGINEERING SPECIAL REFRACTO Free format text: FORMER OWNER: LUOYANG LUOHUA CERAMIC CO., LTD. Effective date: 20150202 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 471023 LUOYANG, HENAN PROVINCE TO: 471621 LUOYANG, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150202 Address after: 471621 Feng Li Industrial Zone, Henan, Luoyang Patentee after: Powder technology special refractories Co., Ltd of Lip river, Luoyang City China Address before: High tech Development Zone, Henan city of Luoyang province Yan Guang Lu 471023 Torch Innovation Park building C Room 501 Patentee before: Luoyang Luohua Kiln Industry Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20150422 |