CN201537694U - Hot metal ladle - Google Patents
Hot metal ladle Download PDFInfo
- Publication number
- CN201537694U CN201537694U CN2009202342597U CN200920234259U CN201537694U CN 201537694 U CN201537694 U CN 201537694U CN 2009202342597 U CN2009202342597 U CN 2009202342597U CN 200920234259 U CN200920234259 U CN 200920234259U CN 201537694 U CN201537694 U CN 201537694U
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- CN
- China
- Prior art keywords
- ladle
- silicon carbide
- bag
- flame retardant
- brick
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- Expired - Fee Related
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model discloses a hot metal ladle, which comprises a ladle bottom, a ladle wall and a ladle nozzle. The inner sides of the ladle bottom, the ladle wall and the ladle nozzle are provided with flame retardant coatings. The hot metal ladle is characterized in that the flame retardant coatings inside the ladle bottom and the ladle wall respectively comprise a working layer and a permanent layer sequentially from inside to outside; the permanent layers are formed from agalmatolite bricks; the working layer of the ladle bottom part is formed from a first aluminum-silicon carbide brick; the working layer of the ladle wall part is formed from a second aluminum-silicon carbide brick; and the flame retardant coating inside the ladle nozzle is formed from an alumium-Silicon carbide casting material. By the design of the working layers of the ladle bottom and the ladle wall and the permanent layer, the hot metal ladle of the utility model improves the high temperature resistance of the hot metal ladle, prolongs the service life, also improves the oxidation resistance and saves the raw materials under the premise of reaching the design tonnage.
Description
Technical field
The utility model relates to a kind of ladle, especially relates to a kind of flame retardant coating of ladle, belongs to metallurgical technology field.
Background technology
Along with constantly advancing of process for making.For the needs of smelting special steel, and in order to reduce production costs, shorten the duration of heat of converter and electric furnace and will produce the steel of high-quality, steel mill is more and more higher to the quality requirement that is subjected to the iron molten iron.Developed into now in ladle by iron by former no preliminary treatment and molten iron carried out pretreating process such as desulfurization, dephosphorization, desiliconization.This makes that the condition of work of ladle flame retardant coating is more and more harsher, except that violent slag iron impacts and variations in temperature causes crackle and peeling off, also being subjected to desulfurization, dephosphorization treatment agent---the serious erosion of fluorite, iron scale, lime, iron oxide and soda causes ladle to descend significantly service life.And serviceability temperature also is elevated to about 1500 ℃ by former 1350 ℃, the maximum temperature during dephosphorization even reach 1650 ℃.Thereby products such as previously used clay brick and high-alumina brick can not satisfy its requirement fully.
The utility model content
Technical problem to be solved in the utility model provides that a kind of high temperature resistance, non-oxidizability are strong, the ladle of long service life.
For solving the problems of the technologies described above, the utility model provides a kind of ladle, comprise the end, Bao Bi and Bao Zui, at the bottom of described bag, Bao Bi and the bag inboard of chewing is provided with flame retardant coating, it is characterized in that: the inboard flame retardant coating with the bag wall at the bottom of described bag comprises working lining and permanent layer from inside to outside successively, described permanent layer is an agalmatolite brick, it is first kind of aluminum-silicon carbide brick that working lining is divided in described bag bottom, described bag wall part working lining is second kind of aluminum-silicon carbide brick, and the flame retardant coating that described bag is chewed the working lining intersection of inboard and the bag end and bag wall is that aluminium silicon carbide waters material feeding.
The beneficial effect that the utility model reached:
Ladle of the present utility model is by designing the working lining and permanent layer of wrapping the end, bag wall and the use position of watering material feeding, the ladle resistance to elevated temperatures is improved, prolong service life, non-oxidizability improves by force simultaneously, saves raw material reaching under the prerequisite of builder's tonnage.
Description of drawings
Fig. 1 is the structural representation of ladle of the present utility model.
The specific embodiment
The utility model provides a kind of ladle, comprise the end 1, bag wall 2 and wrap 3 and chew, at the bottom of described bag 1, bag wall 2 and bag chew 3 inboard and be provided with flame retardant coating, it is characterized in that: the inboard flame retardant coating with the bag wall at the bottom of described bag comprises working lining and permanent layer from inside to outside successively, described permanent layer is an agalmatolite brick 4, it is first kind of aluminum-silicon carbide brick 5 that working lining is divided in described bag bottom, described bag wall part working lining is second kind of aluminum-silicon carbide brick 6, and the flame retardant coating that described bag is chewed the working lining intersection of inboard and the bag end and bag wall is that aluminium silicon carbide waters material feeding 7.
As further improvement of the utility model, the flame retardant coating of chewing the working lining intersection of inboard and the bag end and bag wall at described bag is that aluminium silicon carbide waters material feeding 7.Working lining intersection at the bag end and bag wall is that aluminium silicon carbide waters material feeding 7.At agalmatolite brick at the bottom of the described bag 4 and bag is the common material feeding 8 of watering at the end.
Working lining: bag end working lining adopts first kind of aluminum-silicon carbide brick; Bag wall working lining adopts second kind of aluminum-silicon carbide brick, builds by laying bricks or stones and uses the aluminium silicon carbide chamotte.Table 1 is the physical and chemical index of first kind of aluminum-silicon carbide brick and second kind of aluminum-silicon carbide brick.The selection of the refractory material by above working lining, the service life that can make ladle is more than 900 times; Described bag wall working lining thickness is 150-200mm, and design bag basic skill or training is 200-300mm as layer thickness.
Permanent layer: permanent layer is used agalmatolite brick; Build by laying bricks or stones and use the clay chamotte.Permanent layer adopts agalmatolite brick to be because the thermal conductivity factor of agalmatolite brick is low than clay brick, the thermal conductivity factor of agalmatolite brick is 1.0W/ (mk) in the time of 1000 ℃, the thermal conductivity factor of clay brick is 1.3W/ (mk), uses agalmatolite brick can effectively reduce the loss of thermal capacitance and minimizing heat in permanent layer; Secondly the bulk density of agalmatolite brick is lower, in light weight can effectively reduce ladle weight.Agalmatolite brick has micro-expansibility in addition, in use produces permanent microdilatancy and makes brickwork joint tight, good integrity.Design thickness: bag wall permanent layer thickness is 65mm, 2 layers of 50mm of bag end permanent layer thickness.
Bag is chewed: adopt aluminium silicon carbide to water material feeding, construction for convenience and maintenance are chewed the employing aluminium silicon carbide at bag and are watered material feeding.Aluminium silicon carbide water material feeding have the construction and easy to maintenance, the intensity height, corrosion resistance and the good characteristics of dry slag, service life on the ladle more than 500 times.Bag is chewed inboard aluminium silicon carbide, and to water material feeding thickness be 170-200mm.Table 2 waters the physical and chemical index of material feeding and aluminium silicon carbide chamotte for used aluminium silicon carbide in the utility model.
The physical and chemical index of first kind of aluminum-silicon carbide brick of table 1 and second kind of aluminum-silicon carbide brick
Table 2 aluminium silicon carbide waters the physical and chemical index of material feeding and aluminium silicon carbide chamotte
Ladle after new block ladle and the repairing must can be used (＞1000 ℃ of general requirements) after being baked to uniform temperature, the chilled ladle of stopping using also should be baked to uniform temperature and re-use.Baking generally should slowly be carried out, owing to contain certain moisture content in its inner lining material of ladle after new block ladle and the repairing, the steam inside pressure-volume of heating generation easily makes material generation explosion rapidly, or because the problem of thermal shock performance is peeled off material, influences service life.But baking again can not be too slow, owing in the inner lining material of ladle some carbonaceous article are arranged, the long material over oxidation that makes of stoving time also can influence service life.Baking system such as table 3.
Table 3 is smoked the correspondence table of time and temperature.
| Time (hour) | 0 | 8 | 16 | 22 | 24 |
| Temperature (℃) | 0 | 300 | 800 | 1000 | 1000 |
Ladle of the present utility model has improved service life, reduces to consume, and under the prerequisite of guaranteeing ordinary production and instructions for use, makes ton iron cost minimum.
The foregoing description limits the utility model never in any form, and the technical scheme that form obtained that all employings are equal to replacement or equivalent transformation drops within the protection domain of the present utility model.
Claims (2)
1. ladle, comprise that the end (1), bag wall (2) and bag chew (3), the inboard that (1), bag wall (2) and bag are chewed (3) at the bottom of described bag is provided with flame retardant coating, it is characterized in that: the inboard flame retardant coating with the bag wall at the bottom of described bag comprises working lining and permanent layer from inside to outside successively, described permanent layer is agalmatolite brick (4), it is first kind of aluminum-silicon carbide brick (5) that working lining is divided in described bag bottom, described bag wall part working lining is second kind of aluminum-silicon carbide brick (6), and it is that aluminium silicon carbide waters material feeding (7) that described bag is chewed inboard flame retardant coating.
2. ladle according to claim 1 is characterized in that: the working lining intersection at the bag end and bag wall is that aluminium silicon carbide waters material feeding (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202342597U CN201537694U (en) | 2009-08-13 | 2009-08-13 | Hot metal ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202342597U CN201537694U (en) | 2009-08-13 | 2009-08-13 | Hot metal ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201537694U true CN201537694U (en) | 2010-08-04 |
Family
ID=42589149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202342597U Expired - Fee Related CN201537694U (en) | 2009-08-13 | 2009-08-13 | Hot metal ladle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201537694U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909359A (en) * | 2012-10-29 | 2013-02-06 | 中钢集团邢台机械轧辊有限公司 | Ladle with seepage-proofing insulation layer and masonry method of ladle |
| CN112024861A (en) * | 2020-08-06 | 2020-12-04 | 首钢京唐钢铁联合有限责任公司 | KR desulfurization ladle inside lining |
| CN115229171A (en) * | 2022-06-21 | 2022-10-25 | 中冶宝钢技术服务有限公司 | Safe ladle refractory layer masonry structure and process |
-
2009
- 2009-08-13 CN CN2009202342597U patent/CN201537694U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909359A (en) * | 2012-10-29 | 2013-02-06 | 中钢集团邢台机械轧辊有限公司 | Ladle with seepage-proofing insulation layer and masonry method of ladle |
| CN102909359B (en) * | 2012-10-29 | 2014-12-17 | 中钢集团邢台机械轧辊有限公司 | Ladle with seepage-proofing insulation layer and masonry method of ladle |
| CN112024861A (en) * | 2020-08-06 | 2020-12-04 | 首钢京唐钢铁联合有限责任公司 | KR desulfurization ladle inside lining |
| CN112024861B (en) * | 2020-08-06 | 2022-04-26 | 首钢京唐钢铁联合有限责任公司 | KR desulfurization ladle inside lining |
| CN115229171A (en) * | 2022-06-21 | 2022-10-25 | 中冶宝钢技术服务有限公司 | Safe ladle refractory layer masonry structure and process |
| CN115229171B (en) * | 2022-06-21 | 2024-07-23 | 中冶宝钢技术服务有限公司 | Safe type ladle refractory layer masonry structure and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20100804 Termination date: 20170813 |