CN205629355U - Ladle lining - Google Patents
Ladle lining Download PDFInfo
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- CN205629355U CN205629355U CN201620371344.8U CN201620371344U CN205629355U CN 205629355 U CN205629355 U CN 205629355U CN 201620371344 U CN201620371344 U CN 201620371344U CN 205629355 U CN205629355 U CN 205629355U
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a ladle lining, including set up the inside heat preservation of ladle box hat, permanent layer, with the operational layer of molten steel contact, the heat preservation is hugged closely ladle box hat inner wall, permanent layer sets up the heat preservation with between the operational layer, heat insulation layer draws together and hugs closely the nanometer heat insulation layer of ladle box hat inner wall, hug closely permanent layer prevent the pulverization layer, nanometer heat insulation layer thickness with the proportion of preventing the pulverization layer thickness is 1: 2. The utility model discloses an in inside compound incubation layer, permanent layer and the operational layer of setting up of ladle cylinder -packing, improvement ladle lining's whole life and heat preservation effect, the compound incubation layer adopts nanometer heat insulation layer and fibrofelt board or silico -calcium board to use coordinately, has had the protection of fibrofelt board or silico -calcium board, effective lowering the temperature for nanometer heat insulation layer sintering not in the use, not pulverization, full play nano -material's adiabatic heat preservation effect ensures that the continuous casting goes on smoothly.
Description
Technical field
This utility model relates to ladle lining technical field, particularly to a kind of ladle lining.
Background technology
Metallurgical industry and construction material industry are China industrial energy consumption rich anies influential family, and the ladle surface temperature of steel-making industry is high, and at 250 DEG C-400 DEG C, cement industry rotary kiln surface temperature 300 DEG C-350 DEG C, radiation loss is big, causes energy waste；Boiler of power plant, petrochemical industry kiln, machinery plant's heating furnace etc. there is also Similar Problems；Reduce the surface temperature of these kilns, be to realize energy-saving and cost-reducing main path.The most generally do heat-insulation layer with one layer of fiber felt plate of block in ladle shell or pure calcium silicate board with microporous, then permanent layer uses high-alumina brick or high alumina castable construction, and this kind of mode heat insulation effect is the best, and steel clad temperature is many more than 300 DEG C, the waste energy, has thermal pollution to environment again.
Starting in the recent period to carry out using nano-thermal-insulating plate to do heat-insulation layer, heat conductivity is about the 20% of general adiabator heat conductivity, is used on ladle heat insulation layer, and steel clad temperature can be made to drop to about 250 DEG C；This materials'use nano material, is point cantact between granule, and thermal resistance is big, and heat conductivity is little；Concurrently form and closed nano-pore and the most heat insulation, there is splendid heat insulation effect.One heat steel water waters to having watered from opening, and in ladle, liquid steel temperature only declines 10 DEG C, but after using a period of time, owing to local environment temperature is high, highly active nano material easy-sintering, may result in heat conductivity increases and shrink efflorescence the biggest, easy；The most not only heat insulation effect declines, and ladle heat radiation substantially strengthens, and temperature drop is obvious, affects some steel grades casting quality, even ladle shell gross distortion, stop cast, individual other it is also possible that bleed-out, wear bag accident.
Summary of the invention
The purpose of this utility model is to provide one that nano-thermal-insulating plate can be made to give full play to adiabatic heat-insulation effect, uses simple and fast, can reduce ladle temperature drop on the whole, plays a kind of ladle lining of good heat preservation effect.
For reaching above-mentioned purpose, this utility model employing following technical proposals:
A kind of ladle lining, working lining including the heat-insulation layer being arranged within ladle box hat, permanent layer and steel contacts, described heat-insulation layer is close to described ladle box hat inwall, described permanent layer is arranged between described heat-insulation layer and described working lining, and described heat-insulation layer includes being close to the nano-thermal-insulating layer of described ladle box hat inwall, being close to the anti-efflorescence layer of described permanent layer.
Above-mentioned ladle serves as a contrast, and described working lining is magnesia carbon brick layer, aluminium-magnesia carbon brick layer or the aluminum cast bed of material.
Above-mentioned ladle serves as a contrast, and described working lining is two-layer.
Above-mentioned ladle serves as a contrast, and the thickness of described nano-thermal-insulating layer is more than zero and less than or equal to 30mm.
Above-mentioned ladle serves as a contrast, and the thickness of described anti-efflorescence layer is more than zero and less than or equal to 60mm.
Above-mentioned ladle serves as a contrast, and described anti-efflorescence layer is fiber felt plate.
Above-mentioned ladle serves as a contrast, and described anti-efflorescence layer is calcium silicate board with microporous.
Above-mentioned ladle serves as a contrast, it is characterised in that described anti-efflorescence layer is formed by fiber felt plate and calcium silicate board with microporous are compound.
Above-mentioned ladle serves as a contrast, and described nano-thermal-insulating layer is close to by described fiber felt plate, and described calcium silicate board with microporous is close to described permanent layer.
Above-mentioned ladle serves as a contrast, and described nano-thermal-insulating layer thickness is 1:2 with the ratio of described anti-efflorescence layer thickness.
The beneficial effects of the utility model are as follows:
For solving the problems referred to above, this utility model adopts the technical scheme that the composite heat-insulating layer having set gradually adiabatic heat-insulation effect inside ladle liner, permanent layer, and bears molten steel high temperature, washes away the double-deck working lining with scouring；Composite heat-insulating layer uses nano-thermal-insulating layer to be used in combination with anti-efflorescence layer; there is the protection of anti-efflorescence layer; too much heat is effectively prevented to be delivered to nano-thermal-insulating layer; nano-thermal-insulating layer is not sintered; not efflorescence; the adiabatic heat insulating effect of nano material can be given full play to, it is ensured that continuous casting is smoothed out, and also improve whole service life and the integral heat insulation effect of ladle lining.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure: 1-ladle box hat, 2-nano-thermal-insulating layer, 3-anti-efflorescence layer, 4-permanent layer, 5-working lining.
Detailed description of the invention
In order to be illustrated more clearly that this utility model, below in conjunction with preferred embodiments and drawings, this utility model is described further.Parts similar in accompanying drawing are indicated with identical reference.It will be appreciated by those skilled in the art that following specifically described content is illustrative and be not restrictive, protection domain of the present utility model should not limited with this.
As shown in Figure 1, a kind of ladle lining, working lining 5 including the heat-insulation layer being arranged within ladle box hat 1, permanent layer 4 and steel contacts, described heat-insulation layer is close to described ladle box hat inwall 1, described permanent layer 4 is arranged between described heat-insulation layer and described working lining 5, described heat-insulation layer includes being close to the nano-thermal-insulating layer 2 of described ladle box hat 1 inwall, being close to the anti-efflorescence layer 3 of described permanent layer 4, and described nano-thermal-insulating layer 5 thickness is 1:2 with the ratio of described anti-efflorescence layer 3 thickness.Having male-female engagement between employing nano-plates and warming plate to use in presently disclosed ladle lining structure, this structure still has more heat and is delivered to nano-plates by groove from permanent layer 4 so that the heat insulation effect of nano-plates is bad；And nano-thermal-insulating layer described in this utility model 2 is adjacent with described anti-efflorescence layer 3 coordinates; without concave station; owing to there being the protective effect of described anti-efflorescence layer 3; the heat passed over from described permanent layer 4 reduces; and the twice that the thickness of described anti-efflorescence layer 3 is described nano-thermal-insulating layer 2 thickness; can effectively stop a large amount of heat being delivered to described nano-thermal-insulating layer 2 from described permanent layer 4; nano-thermal-insulating layer 2 is not sintered; not efflorescence, can give full play to the adiabatic heat insulating effect of nano material.
As shown in Figure 1, described working lining 5 is magnesia carbon brick layer, aluminium-magnesia carbon brick layer or alumina-magnesia castable layer, described working lining 5 directly contacts with molten steel, need to bear molten steel high temperature, wash away and scouring, the resistance to elevated temperatures of described magnesia carbon brick layer, aluminium-magnesia carbon brick layer or the aluminum cast bed of material is good, anti-slag ability strong, good thermal shock, high-temerature creep are low, described working lining 5 could be arranged to two-layer so that better heat preservation.
As shown in Figure 1, the most described working lining 5 is thickness 220mm magnesia carbon brick layer, described permanent layer 4 thickness is 160mm, the thickness of described nano-thermal-insulating layer 2 is 20mm, the thickness of described anti-efflorescence layer 3 is 40mm, described nano-thermal-insulating layer 2 is first built in steel mill, construct again described anti-efflorescence layer 3, then construct described permanent layer 4, finally construct described working lining 5, ladleful is 100 tons, the ladle using this structure serves as a contrast, described ladle box hat 1 temperature is 188 DEG C, it is poured onto one hour used time of end from opening, the temperature difference is 8 DEG C, can significantly find out the heat insulation effect using this utility model ladle lining can improve ladle lining on the basis of increasing cost being not provided with concaveconvex structure.
As it is shown in figure 1, described anti-efflorescence layer 3 is fiber felt plate, described fiber felt plate is high temperature resistant, thermal conductivity is low, heat-proof quality good, lightweight.Described anti-efflorescence layer 3 is calcium silicate board with microporous, and described calcium silicate board with microporous has fire prevention, the performance such as heat insulation.Described anti-efflorescence layer 3 is made up of according to thickness is more compound than 1:1 with calcium silicate board with microporous fiber felt plate, described calcium silicate board with microporous is close to described permanent layer 4, the temperature of the heat that the transmission of described permanent layer 4 comes can well be reduced, described nano-thermal-insulating layer 2 is close to by described fiber felt plate, the heat transmitted by described calcium silicate board with microporous is intercepted again, the thermal temperature that described nano-thermal-insulating layer 2 is received is greatly reduced, increase service life of described nano-thermal-insulating layer 2 and best heat insulation effect can be reached [ladleful is 100 tons, the ladle using this structure serves as a contrast, described ladle box hat 1 temperature is 188 DEG C, it is poured onto one hour used time of end from opening, minimum 6 DEG C of the temperature difference].
Obviously; above-described embodiment of the present utility model is only for clearly demonstrating this utility model example; and it is not the restriction to embodiment of the present utility model; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot all of embodiment be given exhaustive, every belong to obvious change that the technical solution of the utility model extended out or the variation row still in protection domain of the present utility model.
Claims (10)
1. a ladle lining, it is characterized in that, working lining including the heat-insulation layer being arranged within ladle box hat, permanent layer and steel contacts, described heat-insulation layer is close to described ladle box hat inwall, described permanent layer is arranged between described heat-insulation layer and described working lining, and described heat-insulation layer includes being close to the nano-thermal-insulating layer of described ladle box hat inwall, being close to the anti-efflorescence layer of described permanent layer.
A kind of ladle lining the most according to claim 1, it is characterised in that described working lining is magnesia carbon brick layer, aluminium-magnesia carbon brick layer or alumina-magnesia castable layer.
A kind of ladle lining the most according to claim 2, it is characterised in that described working lining is two-layer.
A kind of ladle lining the most according to claim 1, it is characterised in that the thickness of described nano-thermal-insulating layer is more than zero and less than or equal to 30mm.
A kind of ladle lining the most according to claim 1, it is characterised in that the thickness of described anti-efflorescence layer is more than zero and less than or equal to 60mm.
A kind of ladle lining the most according to claim 5, it is characterised in that described anti-efflorescence layer is fiber felt plate.
A kind of ladle lining the most according to claim 5, it is characterised in that described anti-efflorescence layer is calcium silicate board with microporous.
A kind of ladle lining the most according to claim 5, it is characterised in that described anti-efflorescence layer is formed by fiber felt plate and calcium silicate board with microporous are compound.
A kind of ladle lining the most according to claim 8, it is characterised in that described nano-thermal-insulating layer is close to by described fiber felt plate, and described calcium silicate board with microporous is close to described permanent layer.
10. according to the arbitrary described a kind of ladle lining of claim 1-9, it is characterised in that described nano-thermal-insulating layer thickness is 1:2 with the ratio of described anti-efflorescence layer thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371344.8U CN205629355U (en) | 2016-04-27 | 2016-04-27 | Ladle lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371344.8U CN205629355U (en) | 2016-04-27 | 2016-04-27 | Ladle lining |
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| CN205629355U true CN205629355U (en) | 2016-10-12 |
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| CN201620371344.8U Active CN205629355U (en) | 2016-04-27 | 2016-04-27 | Ladle lining |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735150A (en) * | 2016-12-06 | 2017-05-31 | 武汉威林科技股份有限公司 | A kind of tundish lining refractory material and its manufacturing process |
| CN107442768A (en) * | 2017-08-10 | 2017-12-08 | 张家港浦项不锈钢有限公司 | The pouring technology of steel-making continuous casting tundish permanent layer |
| CN109341353A (en) * | 2018-09-28 | 2019-02-15 | 武汉钢铁有限公司 | Hot-rolling heating furnace low heat emission furnace lining structure |
| CN114850460A (en) * | 2022-04-25 | 2022-08-05 | 南京钢铁股份有限公司 | Steel ladle and preparation method thereof |
-
2016
- 2016-04-27 CN CN201620371344.8U patent/CN205629355U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735150A (en) * | 2016-12-06 | 2017-05-31 | 武汉威林科技股份有限公司 | A kind of tundish lining refractory material and its manufacturing process |
| CN107442768A (en) * | 2017-08-10 | 2017-12-08 | 张家港浦项不锈钢有限公司 | The pouring technology of steel-making continuous casting tundish permanent layer |
| CN109341353A (en) * | 2018-09-28 | 2019-02-15 | 武汉钢铁有限公司 | Hot-rolling heating furnace low heat emission furnace lining structure |
| CN114850460A (en) * | 2022-04-25 | 2022-08-05 | 南京钢铁股份有限公司 | Steel ladle and preparation method thereof |
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