CN206339099U - A kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place - Google Patents
A kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place Download PDFInfo
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- CN206339099U CN206339099U CN201621368969.5U CN201621368969U CN206339099U CN 206339099 U CN206339099 U CN 206339099U CN 201621368969 U CN201621368969 U CN 201621368969U CN 206339099 U CN206339099 U CN 206339099U
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- furnace roof
- moldable
- hanging
- prefabricated component
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Abstract
The utility model discloses the reparation furnace roof that a kind of heater for rolling steel furnace roof collapses place, maintain that moldable furnace roof medium temperature intensity does not decline, elevated temperature strength is high using moldable prefabricated component, good thermal shock and the advantages of strong resistance to flaking；Using the spring flexible hanging furnace top structure deflection that compensation is produced by hanging anchored brick unbalance stress automatically, anchored brick is thoroughly thoroughly done away with and has been pulled off phenomenon；Cast in situs seals the gap between moldable prefabricated component and normal furnace roof；Solve former furnace roof and collapse the problems such as repairing construction is difficult, construction quality is difficult to ensure, greatly reduce difficulty of construction, improve efficiency of construction, and have the advantages that the construction period is short, furnace drying time is short.
Description
Technical field
The utility model is related to technical field of steel rolling, and the reparation stove at place is collapsed more particularly, to a kind of heater for rolling steel furnace roof
Top.
Background technology
Certain domestic sheet-steel rolling mill's hot rolling producing line is the hot continuous rolling production line that first, China has independent intellectual property, its
The furnace roof of heating furnace is moldable, alumina silicate fiber felt, fibre castable structure.
Two heating furnaces in above-mentioned hot rolling producing line gone into operation at the beginning of 2006 and used 10 years so far, according to design and state
Interior same type heating furnace service life situation, this kind of heating furnace overhaul life is commonly 8 years or so, to the overhaul life.Now
Two heating furnace top plastic materials through being used for many years, and performance is substantially reduced, and this year, heating furnace was occurred in that because of electric fault extractor
Collision discharging door, the equipment breakdown that furnace roof part fritter caves in after two weeks.On the other hand, steel situation is always since 2008
Sternness, steel rolling mill is generally in the edge of meagre profit or loss.Further to reduce process energy consumption and process cost, steel rolling mill is universal
Implement and keep away peak economize on electricity, optimize technique production and overhaul the hands such as enterprise schema, optimal enforcement heating furnace low-temperature insulation power-saving technology
Section, is obviously improved energy use efficiency.It is this but the design of heating furnace is designed according to past Sequential Production
Interruption production model causes furnace temperature acutely, significantly lift, and then generates to converter life totally unfavorable influence.
1. the advantage of former moldable furnace roof and the limitation for collapsing reparation
It is moldable be it is a kind of by 70%~80% granular and granular material, plus 10%~25% fat clay etc. combines
The stiff mud paste refractory material that agent and appropriate plasticizer are formulated.It is moldable because having medium temperature intensity not decline, elevated temperature strength
The features such as high, good thermal shock and strong resistance to flaking, it is widely used on heating furnace.
Moldable use zero thermal expansion design principle so that material at high operating temperatures cancel out each other by thermal expansion and thermal contraction,
Material is in the stable state of internal stress very little.It is moldable that still there is when hot certain plasticity, it is to solve bloating deformation
Good method.The moldable acute variation that can be subjected to kiln temperature, can frequently blowing out, heating；It is moldable after construction without
Need maintenance, can form removal immediately, after amendment can baker, baker programming rate are up to 50 DEG C/h immediately, until reach operation stove
Temperature, substantially reduces furnace drying time；Using neutral material as bonding agent, therefore antiacid, alkali resistant is very capable, does not have to fuel
Particular/special requirement；The construction technology constructed in construction using preload, drawing-die, it is ensured that the deformation of furnace roof steel construction and lining stove
Deform basic synchronization, it is ensured that anchored brick uniform force, it is to avoid the fracture that is likely to occur in use, the feelings such as top of collapsing
Condition.
The shortcoming of moldable live ramming construction：Domestic moldable construction substantially uses ramming construction technology at present,
This technique is constructed by workman's manipulation compactor, and construction point is more dispersed, and the quality index such as moldable compactness is difficult to
Control；And construct low cumbersome, efficiency, long construction period, labor strength are high, construction is difficult when particularly collapse of furnace's roof is rushed to repair
Degree is bigger, and the safety of operating personnel can be also threatened sometimes.Particularly current steel industry is depressed, engineering construction is using at a low price
Acceptance of the bid system, construction manpower often cannot be guaranteed, and ultimately result in accident resulting from poor quality of projects.
2. the problem of former furnace roof hanging is present and analysis
The maximum temperature of heater for rolling steel is usually no more than 1350 degree, along furnace superintendent direction point soaking zone, bringing-up section, preheating
Section, suspension type structure common problem is：Life of arched roof is not long if construction quality is bad, even same seat is heated
Stove, soaking zone, bringing-up section, preheating section life of arched roof it is often also unbalanced.
The failure mechanism of hanging furnace top：
With the maximization of heater for rolling steel, a common heating furnace furnace roof has thousands of of suspension centre, is difficult in work progress
Ensure each suspension centre uniform stressed；Simultaneously because temperature during a small number of hanging anchored brick poor qualities (low intensity) and use
Change is violent, and particularly drying-out period and producing initial stage temperature change is more severe, and these are all likely to result in some hanging anchored bricks and broken
Bad, so the stress that often appearance hanging anchored brick has in produce reality is excessive, some loosenings do not stress, when some hanging anchorings
Brick stress exceed its tensile strength when, the hanging anchored brick will be broken it is ineffective so that adjacent hanging anchored brick by
Power increases, it is possible to the result continuously destroyed occur, and now overall hanging furnace top will occur to cave in suddenly；
Newly-built heating-furnace body construction finish just start baker heating when, because furnace roof temperature of lower is too high, castable or
Moldable fast dewatering, now bottom show as contraction on the contrary, furnace roof raises up not only not because temperature is raised and expand
Change, meanwhile, occur big thermal stress in furnace roof, dilatation joint spacing is bigger, and this stress is also bigger, so furnace roof dilatation joint is stayed
If must be appropriate, this deformation makes the hanging anchored brick pulling force near dilatation joint increase several times, and the hanging anchor in the middle of dilatation joint
Gu brick produces unloading effect；Same reason, when old stove is normally produced under equilibrium temperature field action, under this furnace roof deformation is in
Concavity state, as a result makes the pulling force increase several times of near middle suspension centre between dilatation joint, body of heater is under rapid heat cycle state, due to heat
The thermal stress impacted and produced is up to 0.3MPa, and hanging anchored brick is the centrostigma of this thermal stress, when heat stress value is answered with drawing
When force value sum exceedes the tensile strength of the material, then brick body crack damage, therefore in process of production should make every effort to avoid drastically
Heating-cooling, there is certain contradiction in this with current steel rolling mill for the discontinuous production that reduction energy cost is implemented.
Therefore, how to solve because being collapsed in furnace roof using the furnace roof caused by moldable that repairing construction is difficult, construction matter
The problems such as amount is difficult to ensure, improves efficiency of construction, shortens the technical problem that the construction period is those skilled in the art's urgent need to resolve.
Utility model content
The purpose of this utility model is to provide the reparation furnace roof that a kind of heater for rolling steel furnace roof collapses place, the reparation furnace roof
Structure can solve the problem that repairing construction is difficult, construction quality is difficult to protect because being collapsed in furnace roof using the furnace roof caused by moldable
The problems such as card, efficiency of construction is improved, shorten the construction period.
To solve above-mentioned technical problem, the technical scheme that the utility model is provided is：
A kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place, including furnace roof hanging crossbeam I-steel, furnace roof hanging are small
Beam clamp, furnace roof hanging girder I-steel, the original normal furnace roof for collapsing place's surrounding, moldable prefabricated component, flexible hanging, from
Flow quick-drying anti-explosion castable, the template for cast, anchored brick of squeegeeing, alumina silicate fiber felt and fibre castable；
The furnace roof hanging girder I-steel hangs girder clamp by the furnace roof and is hung on the furnace roof hanging crossbeam
On I-steel；
The moldable prefabricated component fixes nail, special type including installation screw rod, fixed support, anchored brick, moldable piece, ceramics
High-temperature agglomerant and high aluminum fiber black matrix；
The anchored brick is embedded in described moldable piece of forming process in described moldable piece and part is exposed
On described moldable piece of upper surface；
The fixed support is set in the free end of the anchored brick；
Described one end for installing screw rod is fixed on the fixed support and length of its length direction along the anchored brick
Direction extends；
Set fluted on the lower surface of the moldable prefabricated component, the high aluminum fiber black matrix is fixed by the ceramics
Nail and the Special high-temperature binding agent are fixed in the groove, shaping of the fixed nail of ceramics at described moldable piece
It is embedded in journey in described moldable piece, the high aluminum fiber black matrix includes high aluminum fiber felt and far infrared nano paint, institute
Far infrared nano paint is stated to be sprayed on the high aluminum fiber felt；
The other end for installing screw rod is hung on the furnace roof hanging girder I-steel and described by flexible hanging
The main body of moldable prefabricated component is suspended in the cavity formed after the furnace roof dismounting is collapsed；
There is big gap, the template hanging between the moldable prefabricated component and the normal furnace roof of the empty edge
In the cavity and the template-setup in the lower end exit of the big gap to form one by the template and big seam
The cast die cavity that cavity in gap is constituted, it is described to squeegee anchored brick and be hung on the cast die cavity to hang mounting means
In, the gravity flow quick-drying anti-explosion castable is cast in the cast die cavity；
The gravity flow quick-drying anti-explosion castable is cast with gap between the moldable prefabricated component；
The alumina silicate fiber felt is laid on the upper surface of the gravity flow quick-drying anti-explosion castable and moldable prefabricated component
On；
The fibre castable is cast on the upper surface of the alumina silicate fiber felt.
It is preferred that, the installation screw rod of the moldable prefabricated component hangs the two panels up and down of girder I-steel through the furnace roof
Through hole on the edge of a wing；
The flexible hanging includes nut, pad, fixed cover and spring, the spring, fixed cover, pad and nut
The installation screw rod of the moldable prefabricated component is sequentially sleeved at from top to bottom to expose on furnace roof hanging girder I-steel
Position on.
It is preferred that, the nut being provided with the inner surface of the template in nut, the template hangs special spiral shell with template
Bolt is threadedly coupled, and the template is hung special bolt by the template and is hung on the furnace roof hanging girder I-steel.
It is preferred that, described moldable piece is long thick plate-like, and described moldable piece of cross section is up-narrow and down-wide.
The utility model provides the reparation furnace roof that a kind of heater for rolling steel furnace roof collapses place, is protected using moldable prefabricated component
Held that moldable furnace roof medium temperature intensity does not decline, elevated temperature strength is high, good thermal shock and the advantages of strong resistance to flaking；Using spring
The flexible hanging top construction deflection that compensation is produced by hanging anchored brick unbalance stress automatically, has thoroughly thoroughly done away with anchored brick and has been drawn
Disconnected phenomenon；Cast in situs seals the gap between moldable prefabricated component and normal furnace roof；Solve former furnace roof and collapse repairing construction
The problems such as difficult, construction quality is difficult to ensure, greatly reduces difficulty of construction, improves efficiency of construction, and with the construction period
The short advantage of short, furnace drying time.
Brief description of the drawings
Fig. 1 is the structural representation of heater for rolling steel furnace roof of the prior art；
Fig. 2 be in Fig. 1 C-C to cross section structure diagram；
Fig. 3 collapses the structural representation of the reparation furnace roof at place for the heater for rolling steel furnace roof that the utility model embodiment is provided
Figure；
Fig. 4 be in Fig. 3 A-A to cross section structure diagram；
Fig. 5 closes door construction signal for the cast-in-site that the heater for rolling steel furnace roof that the utility model embodiment is provided collapses place
Figure (hangs brick, formwork)；
Fig. 6 is B-B direction cross section structure diagram in Fig. 5；
The mplifying structure schematic diagram for the moldable prefabricated component that Fig. 7 provides for the utility model embodiment；
The mplifying structure schematic diagram for the flexible hanging that Fig. 8 provides for the utility model embodiment.
In figure：1 furnace roof hangs crossbeam I-steel, and 2 furnace roofs hanging girder clamp, 3 furnace roofs hang girder I-steel, and 4 link up with,
5 furnace roof flat flame burners, 6 anchored bricks, 7 fibre castables, 8 alumina silicate fiber felts, 9 is moldable；
10 flexible hangings, 11 gravity flow quick-drying anti-explosion castables；
12 normal furnace roofs, 13 squeegee anchored brick, 14 templates hanging special bolt, 15 templates, 16 nuts；
18 install screw rod, 19 fixed supports, the fixed nail of 20 ceramics, 21 high aluminum fiber black matrixes, 22 Special high-temperature binding agents；
23 pads, 24 fixed covers, 25 springs, 26 moldable pieces.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " axial direction ", " radial direction ", " longitudinal direction ", " horizontal stroke
To ", " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " top ", " bottom ", " interior ", " outer ", " clockwise ",
The orientation or position relationship of instructions such as " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description
The utility model and simplified description, rather than instruction or the signified device of hint or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
Reference picture 1~8, Fig. 1 is the structural representation of heater for rolling steel furnace roof of the prior art；Fig. 2 is C-C in Fig. 1
To cross section structure diagram；Fig. 3 collapses the reparation furnace roof at place for the heater for rolling steel furnace roof that the utility model embodiment is provided
Structural representation；Fig. 4 be in Fig. 3 A-A to cross section structure diagram；The steel rolling heating that Fig. 5 provides for the utility model embodiment
The cast-in-site that stove furnace roof collapses place closes door construction schematic diagram (hanging brick, formwork)；Fig. 6 is B-B direction sectional structure signal in Fig. 5
Figure；The mplifying structure schematic diagram for the moldable prefabricated component that Fig. 7 provides for the utility model embodiment；Fig. 8 is that the utility model is real
The mplifying structure schematic diagram of the flexible hanging of example offer is provided.
The script structure that heater for rolling steel furnace roof collapses place includes furnace roof hanging crossbeam I-steel 1, furnace roof hanging girder card
Plate 2, furnace roof hanging girder I-steel 3, hook 4, anchored brick 6, fibre castable 7, alumina silicate fiber felt 8 and moldable 9.Roll
Furnace roof flat flame burner 5 is generally set on steel heater furnace roof.
This application provides the reparation furnace roof that a kind of heater for rolling steel furnace roof collapses place, including furnace roof hanging crossbeam I-steel
1st, furnace roof hanging girder clamp 2, furnace roof hanging girder I-steel 3, the original normal furnace roof 12 for collapsing place's surrounding, moldable pre-
Product, flexible hanging 10, gravity flow quick-drying anti-explosion castable 11, the template 15 for cast, squeegee anchored brick 13, alumina silicate fibre
Felt 8 and fibre castable 7；
The furnace roof hanging girder I-steel 3 hangs girder clamp 2 by the furnace roof and is hung on the furnace roof hanging greatly
On beam I-steel 1；
The moldable prefabricated component is fixed including installation screw rod 18, fixed support 19, anchored brick 6, moldable piece 26, ceramics
Nail 20, Special high-temperature binding agent 22 and high aluminum fiber black matrix 21；
The anchored brick 6 is embedded in described moldable piece 26 of forming process in described moldable piece 26 and part is revealed
Go out on described moldable piece 26 of upper surface；
The fixed support 19 is set in the free end of the anchored brick 6；
Described one end for installing screw rod 18 is fixed on the fixed support 19 and its length direction is along the anchored brick 6
Length direction extends；
Set fluted on the lower surface of the moldable prefabricated component, the high aluminum fiber black matrix 21 is solid by the ceramics
Surely nail 20 and the Special high-temperature binding agent 22 are fixed in the groove, and the fixed nail 20 of ceramics is at described moldable piece
It is embedded in 26 forming process in described moldable piece 26, the high aluminum fiber black matrix 21 includes high aluminum fiber felt and remote red
Outer nano paint, the far infrared nano paint is sprayed on the high aluminum fiber felt；
The other end for installing screw rod 18 by flexible hanging 10 be hung on the furnace roof hang on girder I-steel 3 and
The main body of the moldable prefabricated component is suspended in the cavity formed after the furnace roof dismounting is collapsed；
There is big gap, the template 15 between the moldable prefabricated component and the normal furnace roof 12 of the empty edge
Hanging is in the cavity and the template 15 is arranged at the lower end exit of the big gap to form one by the template
The 15 cast die cavitys constituted with the cavity in big gap, it is described to squeegee anchored brick 13 and be hung on described pour to hang mounting means
In note die cavity, the gravity flow quick-drying anti-explosion castable 11 is cast in the cast die cavity；
The gravity flow quick-drying anti-explosion castable 11 is cast with gap between the moldable prefabricated component；
The alumina silicate fiber felt 8 is laid on the gravity flow quick-drying anti-explosion castable 11 and the upper table of moldable prefabricated component
On face；
The fibre castable 7 is cast on the upper surface of the alumina silicate fiber felt 8.
In one embodiment of the application, the installation screw rod 18 of the moldable prefabricated component is small through furnace roof hanging
Through hole on the edge of a wing of two panels up and down of beam I-steel 3；
The flexible hanging 10 includes nut 16, pad 23, fixed cover 24 and spring 25, the spring 25, fixed cover
24th, pad 23 and nut 16 are sequentially sleeved at the installation screw rod 18 of the moldable prefabricated component and exposed in the stove from top to bottom
On position on top hanging girder I-steel 3；Using spring flexible hanging furnace top structure automatically compensation by hanging anchored brick by
Power inequality produce deflection, efficiently solve furnace roof hanging anchored brick because local pressure is excessive fracture the problem of, thorough root
The failure that anchored brick is pulled off absolutely.
In one embodiment of the application, it is provided with the inner surface of the template 15 in nut 16, the template 15
Nut 16 and template hanging special bolt 14 be threadedly coupled, the template 15 is hung special bolt 14 by the template and hung
In on furnace roof hanging girder I-steel 3.
In one embodiment of the application, described moldable piece 26 is long thick plate-like, and described moldable piece 26 of horizontal stroke
Section is up-narrow and down-wide.
Present invention also provides the restorative procedure that a kind of heater for rolling steel furnace roof collapses place, comprise the following steps：
1) moldable prefabricated component is made：
The moldable prefabricated component is fixed including installation screw rod 18, fixed support 19, anchored brick 6, moldable piece 26, ceramics
Nail 20, Special high-temperature binding agent 22 and high aluminum fiber black matrix 21；
The anchored brick 6 is embedded in described moldable piece 26 of forming process in described moldable piece 26 and part is revealed
Go out on described moldable piece 26 of upper surface；
The fixed support 19 is set in the free end of the anchored brick 6；
Described one end for installing screw rod 18 is fixed on the fixed support 19 and its length direction is along the anchored brick 6
Length direction extends；
Set fluted on the lower surface of the moldable prefabricated component, the high aluminum fiber black matrix 21 is solid by the ceramics
Surely nail 20 and the Special high-temperature binding agent 22 are fixed in the groove, and the fixed nail 20 of ceramics is at described moldable piece
It is embedded in 26 forming process in described moldable piece 26, the high aluminum fiber black matrix 21 includes high aluminum fiber felt and remote red
Outer nano paint, the far infrared nano paint is sprayed on the high aluminum fiber felt, and moldable prefabricated component is made, standby；
2) first blowing out cooling, then the furnace roof for collapsing place is removed, form cavity after dismounting on furnace roof；
3) furnace roof hanging girder I-steel 3 hangs girder clamp 2 by furnace roof and is hung on furnace roof hanging crossbeam I-steel 1
On；
Then the other end of the installation screw rod 18 of one group or several groups moldable prefabricated component is hung on by flexible hanging 10
On furnace roof hanging girder I-steel 3 and the moldable prefabricated component main body be suspended to the furnace roof remove collapse after formed
Cavity in, the hanging position of the moldable prefabricated component is adjusted to cause the moldable prefabricated component and the empty edge
Normal furnace roof 12 between gap size rationally, the normal furnace roof 12 of the moldable prefabricated component and the empty edge it
Between there is big gap；
The template 15 for pouring into a mould big gap is hung in the cavity simultaneously, controls the template 15 to be arranged at described big
The lower end exit in gap is to form a cast die cavity being made up of the cavity in the template 15 and big gap；
Then it is hung on hanging the mounting means anchored brick 13 that will squeegee in the cast die cavity；
4) gravity flow quick-drying anti-explosion castable 11 and then into the cast die cavity is poured into a mould；
The gravity flow quick-drying anti-explosion castable 11 is poured into a mould into the gap between the moldable prefabricated component to seal；
Then gravity flow quick-drying anti-explosion castable 11 is conserved；
5) from lower past above the gravity flow quick-drying anti-explosion castable 11 and moldable prefabricated component and then after maintenance
On set gradually alumina silicate fiber felt 8 and fibre castable 7, so far complete heater for rolling steel furnace roof and collapse the reparation at place.
In one embodiment of the application, the preparation method of the moldable prefabricated component comprises the following steps：
1) the first mould is first made, the bottom postlaminar part point that the anchored brick 6 then is penetrated into first mould enters
In die cavity in first mould, moldable 9 are then filled into first mould and by moldable ramming process；
Then using the second mould the moldable molding part upper surface formed cofferdam, the cofferdam with it is described plastic
Expect that the upper surface of molding part constitutes a groove；
When moldable ramming process binds, in the fixed nail 20 of upper surface insertion ceramics of the groove, then proceed to smash
Real moldable 9 are fixed in the groove bottom of the groove with make it that the ceramics fix nail 20；
2) moldable molding part is conserved, the first mould and the second mould are removed after the completion of maintenance；
3) Special high-temperature binding agent 22 is smeared in the groove bottom of the groove, then by high aluminum fiber black matrix 21 by described
The fixed nail 20 of ceramics and the Special high-temperature binding agent 22 laying are fixed in the groove；
4) toast：Moldable molding part is toasted so that it solidifies, the Special high-temperature binding agent 22 is toasted with by the height
Aluminum fiber black matrix 21 is tightly sintered together with moldable molding part；It is preferred that, baking temperature is 800 DEG C；
5) fixed fixed support 19 is arranged on the free end of the anchored brick 6；
The installation screw rod 18 and the control length direction edge for installing screw rod 18 are fixed on the fixed support 19
The length direction extension of the anchored brick 6.
In one embodiment of the application, described moldable piece 26 is long thick plate-like, and described moldable piece 26 of horizontal stroke
Section is up-narrow and down-wide；Moldable prefabricated component now is prepared according to the preparation method of above-mentioned moldable prefabricated component, due to moldable piece
26 cross section is up-narrow and down-wide, mould and later stage convenient dismounting mould is made for convenience, mould narrow upper width under should being will
Moldable piece 26 inversion ramming process, the later stage turns again when hanging.
In one embodiment of the application, the suspending method of the moldable prefabricated component comprises the following steps：
1) hole is got through on the edge of a wing of two panels up and down that girder I-steel 3 is hung in the furnace roof；
2) by the two panels up and down that screw rod 18 hangs girder I-steel 3 through the furnace roof of installing of the moldable prefabricated component
Through hole on the edge of a wing simultaneously exposes a part；
3) expose in the installation screw rod 18 and be arranged successively from top to bottom on the part on furnace roof hanging girder I-steel 3
Spring 25, fixed cover 24, pad 23 and nut 16, adjust the fixed cover 24 and are installed with nut 16 described on screw rod 18
Restraint location is to adjust the compression degree of the spring 25.
In one embodiment of the application, the high aluminum fiber black matrix 21 is to spray far infrared nano by high aluminum fiber felt
Coating is made.
In one embodiment of the application, blackness >=0.90 of the far infrared nano paint.
In one embodiment of the application, it is provided with the inner surface of the template 15 in nut 16, the template 15
Nut 16 and template hanging special bolt 14 be threadedly coupled, the template 15 is hung special bolt 14 by the template and hung
In on furnace roof hanging girder I-steel 3.
It should be evident that the heater for rolling steel furnace roof in the application belongs to hanging furnace top this top construction major class, it is used for
The beam of hanging refractory brick is also a part for furnace roof.Therefore, furnace roof is hung crossbeam I-steel 1, furnace roof and hangs girder by the application
Clamp 2, furnace roof hanging girder I-steel 3 are also included in the application in the structural domain of heater for rolling steel furnace roof, because without
Furnace roof hanging crossbeam I-steel 1, furnace roof hanging girder clamp 2 and furnace roof hanging girder I-steel 3, above-mentioned moldable prefabricated component
It can not be hung.
In the application, it is to fix anchored brick 6, adjust the stress of anchored brick 6 to install screw rod 18.
In the application, fixed support 19 is to bind anchored brick 6.
In the application, moldable piece 26 be moldable prefabricated component main body department, furnace roof good integrity, sealing are made of it
Good, spalling resistance it is good (during castable expanded by heating, the unexpected expansion of aggregate can disintegrate surrounding cement institutional framework so that
Furnace lining produces peeling；And it is moldable then different, fire clay can shrink as bonding agent because drying and being dehydrated, so that in aggregate
Around produce the connection of tiny gap and relative loose, with absorbing the function that aggregate expands suddenly, therefore, expanded by heating
When, moldable furnace lining be difficult peel off, with very strong spalling resistance), the acute variation of furnace temperature can be born, and be greatly improved plus
The service life and operating rate of hot stove.
In the application, moldable prefabricated component is made in advance before furnace roof is repaired and finished, and 800 DEG C are baked to by technique,
Weld strapped fixed rack 19 again and screw rod 18 be installed, the offline prefabricated, baking of resistance to material solve former furnace roof collapse site operation it is difficult,
The problems such as construction quality is difficult to ensure.
In the application, stickup high aluminum fiber black matrix 21 not only reduces plastic in moldable prefabricated component on moldable prefabricated component
The temperature stress of material 9, live thermal operating environment is improved, and improve absorptivity and transmitting of the furnace lining to infra-red radiation
Rate, shortens the heat time, improves the heating efficiency of stove.High aluminum fiber black matrix 21 is to spray far infrared by high aluminum fiber felt
Nano paint is made.High aluminum fiber felt thermal capacity is small, thermal resistance is big, higher refractoriness under load and temperature in use the characteristics of,
Furnace roof is added to repair the thermal sensitivity of the resistance to material in part, reduce temperature stress moldable in moldable prefabricated component, improve now
Field thermal operating environment；The larger blackness of far infrared nano paint (>=0.90) improve furnace lining to the absorptivity of infra-red radiation and
Emissivity, shortens the heat time, improves the heating efficiency of stove.
In the application, the above-mentioned fixed nail 20 of ceramics is not fall off to set for fixed high aluminum fiber black matrix 21, by being dried under line
The roasting phase transformation of Special high-temperature binding agent 22 is by high aluminum fiber black matrix 21 together with moldable piece 26 tightly sinters.It is preferred that, above-mentioned spy
High-temperature agglomerant 22 is planted for 1400 binding agents (specification LYHG-26), 18500~21500mPa.s of viscosity, 1400 DEG C of temperature in use,
With good chemical binding force, it is firmly bonded, with excellent heat resistance energy.
In the application, set fluted on the lower surface of above-mentioned moldable prefabricated component, to protect high aluminum fiber black matrix 21 to exist
It is not damaged by installation, transportation.
The method and apparatus of the not detailed description of the utility model are prior art, repeat no more.
Specific embodiment used herein is set forth to principle of the present utility model and embodiment, and the above is implemented
The explanation of example is only intended to help and understands method of the present utility model and its core concept.It should be pointed out that for the art
Those of ordinary skill for, on the premise of the utility model principle is not departed from, can also to the utility model carry out it is some
Improve and modify, these are improved and modification is also fallen into the utility model scope of the claims.
Claims (4)
1. a kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place, it is characterised in that including furnace roof hanging crossbeam I-steel, stove
It is top hanging girder clamp, furnace roof hanging girder I-steel, the original normal furnace roof for collapsing place's surrounding, moldable prefabricated component, soft
Property hanging, gravity flow quick-drying anti-explosion castable, the template for cast, anchored brick of squeegeeing, alumina silicate fiber felt and fibre castable；
The furnace roof hanging girder I-steel hangs girder clamp by the furnace roof and is hung on the furnace roof hanging crossbeam I-shaped
On steel；
The moldable prefabricated component fixes nail, Special high-temperature including installation screw rod, fixed support, anchored brick, moldable piece, ceramics
Binding agent and high aluminum fiber black matrix；
The anchored brick is embedded in described moldable piece of forming process in described moldable piece and part is exposed described
On moldable piece of upper surface；
The fixed support is set in the free end of the anchored brick；
Described one end for installing screw rod is fixed on the fixed support and length direction of its length direction along the anchored brick
Extension；
Set fluted on the lower surface of the moldable prefabricated component, the high aluminum fiber black matrix by the fixed nail of the ceramics with
And the Special high-temperature binding agent is fixed in the groove, the fixed nail of ceramics is in described moldable piece of forming process
It is embedded in described moldable piece, the high aluminum fiber black matrix includes high aluminum fiber felt and far infrared nano paint, described remote
Infrared nanometer coating is sprayed on the high aluminum fiber felt；
The other end for installing screw rod is hung on the furnace roof hanging girder I-steel and described plastic by flexible hanging
The main body of material prefabricated component is suspended in the cavity formed after the furnace roof dismounting is collapsed；
There is big gap between the moldable prefabricated component and the normal furnace roof of the empty edge, the template hanging is in institute
State in cavity and the template-setup in the lower end exit of the big gap to form one by the template and big gap
The cast die cavity that constitutes of cavity, described to squeegee anchored brick and be hung on hanging mounting means in the cast die cavity, institute
Gravity flow quick-drying anti-explosion castable is stated to be cast in the cast die cavity；
The gravity flow quick-drying anti-explosion castable is cast with gap between the moldable prefabricated component；
The alumina silicate fiber felt is laid on the upper surface of the gravity flow quick-drying anti-explosion castable and moldable prefabricated component；
The fibre castable is cast on the upper surface of the alumina silicate fiber felt.
2. reparation furnace roof according to claim 1, it is characterised in that the installation screw rod of the moldable prefabricated component passes through institute
State the through hole on the edge of a wing of two panels up and down of furnace roof hanging girder I-steel；
The flexible hanging includes nut, pad, fixed cover and spring, and the spring, fixed cover, pad and nut are under
Expose to the installation screw rod for being above sequentially sleeved at the moldable prefabricated component and hang the portion on girder I-steel in the furnace roof
On position.
3. reparation furnace roof according to claim 1, it is characterised in that nut, institute are provided with the inner surface of the template
The nut stated in template is threadedly coupled with template hanging special bolt, and the template is hung special bolt by the template and hung
In on furnace roof hanging girder I-steel.
4. reparation furnace roof according to claim 1, it is characterised in that described moldable piece is long thick plate-like, and it is described can
The cross section of unit of plastic is up-narrow and down-wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368969.5U CN206339099U (en) | 2016-12-13 | 2016-12-13 | A kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368969.5U CN206339099U (en) | 2016-12-13 | 2016-12-13 | A kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place |
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| Publication Number | Publication Date |
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| CN206339099U true CN206339099U (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621368969.5U Expired - Fee Related CN206339099U (en) | 2016-12-13 | 2016-12-13 | A kind of heater for rolling steel furnace roof collapses the reparation furnace roof at place |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766927A (en) * | 2016-12-13 | 2017-05-31 | 山东钢铁股份有限公司 | A kind of heater for rolling steel furnace roof collapses the reparation furnace roof and restorative procedure at place |
| CN109405554A (en) * | 2018-12-27 | 2019-03-01 | 西南铝业（集团）有限责任公司 | A kind of building method of aluminium melting furnace, furnace roof and furnace roof |
| CN110806106A (en) * | 2019-10-29 | 2020-02-18 | 首钢京唐钢铁联合有限责任公司 | Method and structure for repairing collapse of refractory material at top of heating furnace |
| CN112013689A (en) * | 2020-08-25 | 2020-12-01 | 山东中阳碳素股份有限公司 | Petroleum coke calcining furnace flue and manufacturing method thereof |
-
2016
- 2016-12-13 CN CN201621368969.5U patent/CN206339099U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766927A (en) * | 2016-12-13 | 2017-05-31 | 山东钢铁股份有限公司 | A kind of heater for rolling steel furnace roof collapses the reparation furnace roof and restorative procedure at place |
| CN109405554A (en) * | 2018-12-27 | 2019-03-01 | 西南铝业（集团）有限责任公司 | A kind of building method of aluminium melting furnace, furnace roof and furnace roof |
| CN110806106A (en) * | 2019-10-29 | 2020-02-18 | 首钢京唐钢铁联合有限责任公司 | Method and structure for repairing collapse of refractory material at top of heating furnace |
| CN112013689A (en) * | 2020-08-25 | 2020-12-01 | 山东中阳碳素股份有限公司 | Petroleum coke calcining furnace flue and manufacturing method thereof |
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