CN201532118U - Refractory material prefabricated composite brick structure for heating furnace tapping holes - Google Patents
Refractory material prefabricated composite brick structure for heating furnace tapping holes Download PDFInfo
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- CN201532118U CN201532118U CN2009202464221U CN200920246422U CN201532118U CN 201532118 U CN201532118 U CN 201532118U CN 2009202464221 U CN2009202464221 U CN 2009202464221U CN 200920246422 U CN200920246422 U CN 200920246422U CN 201532118 U CN201532118 U CN 201532118U
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- brick
- fire door
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- refractory material
- heating furnace
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Abstract
A refractory material prefabricated composite brick structure for heating furnace tapping holes belongs to the technical field of refractory bricks for heating furnaces. The refractory material prefabricated composite brick structure comprises a fire door bottom brick and fire door side bricks, the fire door bottom brick is arranged on the bottom of a heating furnace tapping hole, and the fire door side bricks are arranged on the two sides of the heating furnace tapping hole. The fire door bottom brick is assembled by three bricks with different shapes, two of three bricks are spliced to form a main brick with a groove, the other one is a sub brick embedded in a groove of the main brick, the sub brick and the main brick are spliced to from a cuboid, and the sub brick can be replaced when the heating furnace is in a heating state. Each fire door side brick consists of refractory material special-shaped fire door bricks and fire door brick fixing iron, wherein the refractory material special-shaped fire door bricks are designed into structures capable of preventing falling when impacted by taping billets, shapes of the fire door brick fixing iron and the low-temperature side of the refractory material special-shaped fire door bricks match with each other, and the fire door side bricks fixed on a heating furnace upright post has falling prevention functions after being impacted by tapping billets.
Description
Technical field
The utility model belongs to heating furnace refractory brick technical field, the modular tile structure that has particularly related to a kind of heating furnace tapping hole, this modular tile structure can be divided into brick and door side brick at the bottom of the fire door, brick can be at the hot sub-brick of changing end brick down of heating furnace at the bottom of its fire door, and its door side brick has the steel billet of being subjected to bump back slip-off preventing function.
Background technology
Steel billet after the heater for rolling steel heating, come out of the stove from tapping hole, steel billet runs into the furnace wall that fortuitous event can bump against tapping hole in the process of coming out of the stove, in order to prevent to break furnace wall, the both sides that heat resisting steel of being convenient to change when generally adopting the heating furnace shutdown maintenance or water-cooled part are done fire door; The bottom of fire door is because the wearing and tearing repeatedly of the steel billet of being come out of the stove, be easy to cause damage, in order to improve the life-span of fire door bottom, make it to reach a time between overhauls(TBO), general good brown corundum, the carborundum class refractory material of elevated temperature strength that adopt done end brick, these materials belong to expensive refractory material, and price is all at several ten thousand yuan one ton.And brick of this end can only could be changed when shutdown maintenance.
Walking beam heating furnace is a Reheating Furnace of High-speed Wire, and the heating furnace side wall is that low cement deposit material is integrated poured, and tapping hole is arranged on the side wall of heating furnace.The structure of tapping hole is like this: two sides of tapping hole have been installed the steel construction water tank that prevents to clash into furnace wall, and this water tank is fixed on the column of heating furnace, the function that this water tank is had come out of the stove steel billet bump rear defence anti-avulsion to fall; Because this walking beam heating furnace adopts the hanging arm roll tapping, steel billet all moves on roller-way, and therefore, the bottom of tapping hole is exactly the furnace wall body, and the top of tapping hole is the furnace wall body of arch.The billet bloom size that heating furnace heated is 12000 * 160 * 160 millimeters, and substance is about 2.4 tons, 1200～2050 tons of the dailys output (500～854).In the position of 1.6 meters of distance tapping holes a high pressure water descaling device is arranged, when oven-fresh high temperature billet steel passes through this equipment, iron scale on the steel billet is removed by water under high pressure, water under high pressure is when dashing except that iron scale on the steel billet, the part of its water under high pressure also is splashed to the tapping hole of heating furnace, cause after the refractory material of tapping hole position high temperature is cooled off rapidly by water and peel off, the furnace wall of tapping hole bottom causes damage very soon, utilize servicing machine can carry out hot repair, because the mass effect of hot repair is not fine, the water that is splashed to tapping hole soon destroys once more.The steel construction water tank of tapping hole side, because reasons in structure, in the property at parts of edges and corners formation " slough " of water tank, water temperature is higher at " slough " position, and the time has been grown and produced incrustation scale, and incrustation scale causes the heat-transfer effect variation, its property at parts of edges and corners cooling effect variation, cause the property at parts of edges and corners local temperature of water tank to raise, under the temperature stress effect, the property at parts of edges and corners of water tank snaps and leaks, the steel construction water tank that leaks, want stop production to overhaul, perhaps online welding or more renew, this all is to influence production work.
Summary of the invention
The purpose of this utility model is to provide a kind of modular tile structure of heating furnace tapping hole, has solved tapping hole bottom furnace wall and has often damaged, and needs the problem of stop production to overhaul; Solution steel construction water tank because of forming " slough ", causes the problem of leaking of snapping at property at parts of edges and corners in the course of time.
The utility model comprises brick and door side brick at the bottom of the fire door; Brick is positioned at the bottom of heating furnace tapping hole at the bottom of the fire door, and the door side brick is positioned at two sides of heating furnace tapping hole.
Brick is made up of the first base brick, sub-brick and the second base brick at the bottom of the fire door described in the utility model; The first base brick and second base brick splicing back form the female brick with a groove in the middle part, sub-brick embeds in the groove of female brick, and primary and secondary brick splicing back is a cuboid; Its upper opening of groove of female brick is convenient to the hot sub-brick of changing easily down greater than bottom opening; Groove on female brick does not connect, and seal by the part in the heating furnace outside, has opening by burner hearth one side, and opening is less than the heating furnace outside, and such architectural feature prevents that sub-brick from rubbing and do not come off after the rubbing being come out of the stove and melt down steel billet.The base brick selects for use mullite material refractory material to make; Sub-brick is selected for use and is watered the material feeding making.
Door side brick described in the utility model by refractory material abnormity furnace door brick and furnace door brick fixedly iron form; Refractory material abnormity furnace door brick is made a turning and an inclined-plane at high temperature side, make a turning at low temperature side, and low temperature side turning and furnace door brick fixedly iron phase cooperation are buckled together, fixed screw with the door side brick) is fixed on the steel construction column of heating furnace, because the furnace door brick of high temperature side turning, inclined-plane and the low temperature side of refractory material abnormity furnace door brick is iron fixedly, the door side brick had be subjected to coming out of the stove steel billet bump slip-off preventing function afterwards.
Brick will solve after the cooling rapidly that is subjected to water at the bottom of the fire door, and refractory material peels off repeatedly, just damages in the short time, causes the high problem of high grade refractory consumption costs; In order to solve the big problem of high grade refractory consumption, adopt rudimentary refractory material to do the sub-brick of brick at the bottom of the fire door, and the structure of the interface of primary and secondary brick to be convenient to change sub-brick down in that heating furnace is hot, to save the parking maintenance time; Select for use the high grade refractory that is more suitable under adverse circumstances, working as the raw material of making the base brick simultaneously.
Brick is stitched together by 3 difform bricks and forms at the bottom of the fire door; Wherein the splicing of 2 base bricks forms female brick of band groove together, and wherein 1 is sub-brick, and sub-brick embeds in the groove of female brick, can change sub-brick at heating furnace when being hot.Primary and secondary brick splicing back is a brick at the bottom of the fire door of cuboid, and one of them length of side equates that with the furnace wall thickness of heating furnace wherein another length of side is greater than the width of tapping hole.The life-span of female brick will guarantee to reach more than 1 year, change in the time of only in this way could guaranteeing to repair in heating furnace, therefore, 2 base bricks will guarantee refractory material on material is selected for use resistance to thermal shocks is good and high-temperature stability is good, so, select mullite material refractory material for use.Sub-brick is convenient to change, thereby is not very long to life requirements, and is good and cheap based on the rapid heat cycle of taking into account refractory material, select for use general material to water material feeding just passable.Sub-brick embeds in the groove of female brick, do not knocked when sub-brick is subjected to steel billet friction rubbing when requiring steel billet to come out of the stove, the sub-brick of friction rubbing can not fall down when the steel billet of having come out of the stove melted down again, that is to say, sub-brick all can not come off in groove in that both direction is stressed, simultaneously, sub-brick also will satisfy the requirement of being convenient to hot replacing.
Its door side is changeed the making of employing refractory material, to replace the function of steel construction water tank, is subjected to can not coming off behind the steel billet bump spare part that will be convenient to more renew when maintenance that is:.
The door side brick by refractory material abnormity furnace door brick and furnace door brick fixedly iron form, abnormity furnace door brick high temperature side is designed to the anti-drop structure with the turning, the furnace door brick fixedly shape of iron and special-shaped furnace door brick low temperature side matches, and both are buckled together, and are fixed on then on the heating furnace column.By the fixing door side brick that is combined to form of iron of special-shaped furnace door brick and furnace door brick, have identical shaped and size with original steel construction water tank in shape, thereby realize coming out of the stove steel billet bump back slip-off preventing function.
The beneficial effects of the utility model are: the door side brick adopts refractory material to replace the steel construction water tank, has stopped the out of order problem in tapping hole side; And the cancellation water tank is for energy-saving and cost-reducing also helpful.Brick can be realized the online replacing under not blowing out of the heating furnace situation at the bottom of the fire door, can guarantee the serviceable condition of heating furnace, can not inhale cold wind and burn with anger at the fire door position when insulation to be rolled, and this helps saving energy and reduce the cost.
Description of drawings:
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.
Fig. 1 is the front view of the prefabricated modular tile of tapping hole.Wherein, 1, the base brick 1 of brick at the bottom of the fire door, the refractory material of the sub-brick 2 door side bricks of brick abnormity furnace door brick 4, the furnace wall 6 of heating furnace, the fixed screw 7 of door side brick at the bottom of the fire door.
The vertical view of the prefabricated modular tile of Fig. 2 tapping hole.Wherein, 1, the base brick 1 of brick at the bottom of the fire door, the sub-brick 2 of brick at the bottom of the fire door, the fixedly furnace wall 6, the fixed screw 7 of door side brick, the steel construction column 8 of heating furnace of iron 5, heating furnace of the furnace door brick of the refractory material of the base brick 3 of brick, door side brick abnormity furnace door brick 4, door side brick at the bottom of the fire door.
Fig. 3 is the front view of the base brick 1 of brick at the bottom of the fire door.
Fig. 4 is the vertical view of the base brick 1 of brick at the bottom of the fire door.
Fig. 5 is the front view of the sub-brick of brick at the bottom of the fire door.
Fig. 6 is the vertical view of the sub-brick of brick at the bottom of the fire door.
Fig. 7 is the front view of the base brick 3 of brick at the bottom of the fire door.
Fig. 8 is the vertical view of the base brick 3 of brick at the bottom of the fire door.
Fig. 9 is the left view of the base brick 3 of brick at the bottom of the fire door.
Figure 10 is the front view of the refractory material abnormity furnace door brick of door side brick.
Figure 11 is the vertical view of the refractory material abnormity furnace door brick of door side brick.
Figure 12 is the fixing front view of iron of furnace door brick of door side brick.
Figure 13 is the fixing vertical view of iron of furnace door brick of door side brick.
Figure 14 is the fixing left view of iron of furnace door brick of door side brick.
Figure 15 is the front view of brick at the bottom of the fire door, i.e. the combination of the base brick 3 of brick at the bottom of the sub-brick of brick and the fire door at the bottom of the base brick 1 of brick, the fire door at the bottom of the fire door among Fig. 2.
Figure 16 is the vertical view of brick at the bottom of the fire door, i.e. the combination of the base brick 3 of brick at the bottom of the sub-brick of brick and the fire door at the bottom of the base brick 1 of brick, the fire door at the bottom of the fire door among Fig. 2.
Figure 17 is the A-A cutaway view of Figure 15.
Figure 18 is the front view of door side brick, i.e. the fixedly combination of iron of furnace door brick of the refractory material of door side brick abnormity furnace door brick and door side brick among Fig. 2.
Figure 19 is the vertical view of door side brick, i.e. the fixedly combination of iron of furnace door brick of the refractory material of door side brick abnormity furnace door brick and door side brick among Fig. 2.
The specific embodiment
Fig. 1～Figure 19 is the specific embodiment of the present utility model.
1, the base brick 1 of brick at the bottom of the fire door
Among Fig. 21 is the base brick of brick at the bottom of the fire door, be positioned at burner hearth one side in the middle of the use, bear the high temperature about 1200 ℃, in use also can often have the globule to drop on brick, from using central situation, this brick is under the comparison rugged environment works, the refractory material of selecting for use must satisfy following requirement: refractoriness is not less than 1400 ℃, and it is high that bulk density is wanted, and thermal shock resistance will be got well, refractoriness under load is not less than 1350 ℃, and lay special stress on is that thermal shock resistance must be got well.To satisfy the hot requirement that can change brick brick at the bottom of the fire door down on the shaped design, also will guarantee to melt down the steel billet rubbing and rub and can not fall down behind the sub-brick.
Table 1 mullite pouring material physical and chemical index
The face shaping of base brick 1 is seen Fig. 3 and Fig. 4, and principal character is that the groove of inlaying the sub-brick of brick at the bottom of the fire door will have the inclined-plane at both direction, is convenient to take off when inclined-plane guarantees hot replacings, and another inclined-plane assurance is melted down when the steel billet rubbing rubs sub-brick and do not fallen down.
2, the sub-brick of brick at the bottom of the fire door
Among Fig. 22 is sub-bricks of brick at the bottom of the fire door, embeds in brick at the bottom of the fire door poor, and bearing temperature is from about normal temperature～1200 ℃, and the temperature difference of brick different parts is very big, is normal temperature near the heating furnace outside, is temperature about 1200 ℃ near heating furnace burner hearth one side; In use often have the globule of high-pressure water descaling to drop on brick, from using central situation, this brick is under the comparison rugged environment works.The refractory material of selecting for use must satisfy thermal shock resistance must good requirement.Will satisfy the hot requirement that can change brick brick at the bottom of the fire door down on the shaped design, the stove steel billet rubbing that also will guarantee to come out of the stove rubs and can not fall down behind the sub-brick.The sub-brick of brick is selected clay castable for use at the bottom of the fire door, and its performance indications see Table 2:
Table 2 clay castable physical and chemical index
3, the base brick 3 of brick at the bottom of the fire door
The base brick 3 of brick at the bottom of the fire door among Fig. 2, be positioned at the heating furnace outside in the middle of the use, bearing temperature is from about normal temperature～1000 ℃, and the temperature difference of same brick different parts is very big, near the heating furnace outside is normal temperature, and close heating furnace burner hearth one side is the temperature about 800～1000 ℃; In use often have the globule of high-pressure water descaling to drop on brick, from using central situation, this brick is under the comparison rugged environment works.The refractory material of selecting for use must satisfy following requirement: bulk density wants high, and lay special stress on is that thermal shock resistance must be got well.Will satisfy the hot requirement that can change brick brick at the bottom of the fire door down on the shaped design, the steel billet rubbing that also will guarantee to come out of the stove rubs and can not fall down behind the sub-brick.
The face shaping of base brick 3 is seen Fig. 7, Fig. 8 and Fig. 9, and principal character is that the groove of inlaying the sub-brick of brick at the bottom of the fire door will direction have the inclined-plane up, is convenient to take off when this inclined-plane guarantees hot replacing; The outside that is recessed at of inlaying sub-brick does not connect, and does not fall down when the steel billet rubbing that guarantees to come out of the stove rubs sub-brick.
4, the refractory material of door side brick abnormity furnace door brick
Among Fig. 24 is refractory material abnormity furnace door bricks of door side brick, in two sides of fire door, bearing temperature is from about normal temperature～1200 ℃ in the use, and the temperature difference of brick different parts is very big, near the heating furnace outside is normal temperature, and close heating furnace burner hearth one side is the temperature about 1200 ℃; The globule splash that high-pressure water descaling is in use often arranged is on brick, and from using central situation, this brick is under the comparison rugged environment works.The refractory material of selecting for use must satisfy thermal shock resistance must good requirement; Because this brick is in the side of fire door, also to bear the pressure of brick top furnace wall, therefore, its refractoriness under load of refractory material that requires to select for use wants high, that is to say that the refractory material of selecting for use at this place wants to resist load under the high temperature; In addition, the refractory material at this place will reach the life-span more than 1 year on selecting for use, guarantees not destroy in a time between overhauls(TBO).To guarantee to come out of the stove on the shaped design and can not fall down behind steel billet bump or the rubbing friction brick.
The refractory material abnormity furnace door brick of door side brick is selected mullite pouring material for use, and its performance indications see Table 1:
The face shaping of the refractory material abnormity furnace door brick of door side brick is seen Figure 10, Figure 11, and principal character is that the A place in Figure 11 will make a turning, allows this turning " hook " furnace wall, does not come off after being clashed into; B place in Figure 11 will make an inclined-plane, and when steel billet struck on the brick, the head of steel billet can also disperse impact simultaneously from this inclined-plane " cunning " to tapping hole; C place in Figure 11 makes a turning, to match with the turning at A place among Figure 14 in this turning, formation door side brick (Figure 18 and Figure 19) is fixed on the door side brick that combines on the heating furnace steel construction column with screw, reaches to be subjected to the adeciduate purpose in steel billet bump back.
5, the fixing iron of the furnace door brick of door side brick
Among Fig. 25 is the fixing iron of furnace door brick of door side brick, and in two sides of fire door, near the heating furnace outside, bearing temperature is from about normal temperature～500 ℃ in the use; The globule splash that high-pressure water descaling in use often arranged is at furnace door brick fixedly on the iron, from using central situation, work under this environment mainly is that the temperature of wanting to resist heating-cooling-heating-cooling alternately changes, therefore, select for use heat-resisting cast iron to do the fixedly material of iron of furnace door brick, select the heat-resisting cast iron of the RTCr-500 ℃ of trade mark for use.
The door side brick furnace door brick fixedly the face shaping of iron see Figure 12,13 and Figure 14, principal character is that the A place in Figure 14 will make a turning, will be matched with the turning at C place among Figure 11 in this turning, form door side brick (Figure 18 and Figure 19), the door side brick that combines is fixed on the heating furnace steel construction column with screw, and the refractory material abnormity furnace door brick that reaches the door side brick is subjected to the adeciduate purpose in steel billet bump back.
Claims (4)
1. the heating furnace tapping hole is characterized in that with refractory material prefabricated modular tile structure, comprises brick and door side brick at the bottom of the fire door; Brick is positioned at the bottom of heating furnace tapping hole at the bottom of the fire door, and the door side brick is positioned at two sides of heating furnace tapping hole.
2. modular tile structure according to claim 1 is characterized in that, brick is made up of the first base brick (1), sub-brick (2) and the second base brick (3) at the bottom of the described fire door; The first base brick (1) and the second base brick (3) splicing back form the female brick with a groove in the middle part, sub-brick (2) embeds in the groove of female brick; Primary and secondary brick splicing back is a cuboid.
3. modular tile structure according to claim 1 is characterized in that, described door side brick by refractory material abnormity furnace door brick (4) and furnace door brick fixedly iron (5) form; Refractory material abnormity furnace door brick (4) is made a turning and an inclined-plane at high temperature side, make a turning at low temperature side, and low temperature side turning and furnace door brick fixedly iron (5) match and are buckled together, and are fixed on the steel construction column (8) of heating furnace with the fixed screw (7) of door side brick.
4. modular tile structure according to claim 1 is characterized in that, the base brick selects for use mullite material refractory material to make; Sub-brick is selected for use and is watered the material feeding making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464221U CN201532118U (en) | 2009-10-28 | 2009-10-28 | Refractory material prefabricated composite brick structure for heating furnace tapping holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464221U CN201532118U (en) | 2009-10-28 | 2009-10-28 | Refractory material prefabricated composite brick structure for heating furnace tapping holes |
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| Publication Number | Publication Date |
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| CN201532118U true CN201532118U (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202464221U Expired - Fee Related CN201532118U (en) | 2009-10-28 | 2009-10-28 | Refractory material prefabricated composite brick structure for heating furnace tapping holes |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375993A (en) * | 2013-07-31 | 2013-10-30 | 德清县钢友耐火材料有限公司 | Furnace door brick for tapping nozzles |
| CN108300850A (en) * | 2017-12-30 | 2018-07-20 | 醴陵友立特种陶瓷有限公司 | A kind of heating furnace with it is compound go out steel stove a heatable brick bed structure and its construction method |
| CN109780870A (en) * | 2018-12-29 | 2019-05-21 | 河南中汇新材科技有限公司 | It is paved on the level land all-in-one oven brick of Bottom of Heating Furnace |
-
2009
- 2009-10-28 CN CN2009202464221U patent/CN201532118U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375993A (en) * | 2013-07-31 | 2013-10-30 | 德清县钢友耐火材料有限公司 | Furnace door brick for tapping nozzles |
| CN103375993B (en) * | 2013-07-31 | 2016-02-10 | 德清县钢友耐火材料有限公司 | A kind of tapping mouth furnace door brick |
| CN108300850A (en) * | 2017-12-30 | 2018-07-20 | 醴陵友立特种陶瓷有限公司 | A kind of heating furnace with it is compound go out steel stove a heatable brick bed structure and its construction method |
| CN108300850B (en) * | 2017-12-30 | 2019-12-17 | 醴陵友立特种陶瓷有限公司 | Composite steel tapping furnace kang structure for heating furnace and construction method thereof |
| CN109780870A (en) * | 2018-12-29 | 2019-05-21 | 河南中汇新材科技有限公司 | It is paved on the level land all-in-one oven brick of Bottom of Heating Furnace |
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Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20181028 |