CN202921910U - Service life prolonging type steel ladle - Google Patents
Service life prolonging type steel ladle Download PDFInfo
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- CN202921910U CN202921910U CN 201220631398 CN201220631398U CN202921910U CN 202921910 U CN202921910 U CN 202921910U CN 201220631398 CN201220631398 CN 201220631398 CN 201220631398 U CN201220631398 U CN 201220631398U CN 202921910 U CN202921910 U CN 202921910U
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- ladle
- carbon
- free
- steel ladle
- brick
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Abstract
The utility model discloses a service life prolonging type steel ladle, which comprises a tank shell and a lining, wherein the lining comprises a working layer directly contacted with molten steel; the working layer comprises a slag line brick layer on the upper part of a ladle wall, a carbon-free steel ladle brick layer on the middle lower part of the ladle wall, and a pouring material layer on the ladle bottom; the bottom of the steel ladle is provided with a water gap; and the carbon-free steel ladle brick layer on the 1/4-1/2 of circular arc position on one side of the water gap of the steel ladle is made of carbon-free steel ladle brick which is thicker than the carbon-free steel ladle brick layer on the rest positions for 15-25mm. According to the service life prolonging type steel ladle disclosed by the utility model, the refractory material can be effectively saved, the service life of the steel ladle is prolonged, and the cost can be favorably saved.
Description
Technical field
The utility model relates to field of metallurgy, more particularly, relates to a kind of life shaped steel bag.
Background technology
Refractory brick size and the material of certain steel mill ladle liner relate to according to detailed programs, its product orientation is mainly the high-level steel grades such as clean steel, mild steel and ultra-low-carbon steel, therefore for preventing that molten steel recarburization from selecting carbon-free ladle brick in the slag line bottom of working lining.The size of its carbon-free ladle brick is mainly that ((design 360t) designs as effective capacity 200～230t), headroom (the RH refining treatment need keep the headroom of 350～550mm) and hoisting power according to ladleful, can't satisfy RH stove refining treatment, headroom processing requirements and useful life requirement so the carbon-free ladle brick size is too thin, thin thickness also can cause the cost of anti-the material to increase; And size is too thick, and the ladle headroom is too small, and the safe operation of crane all can't be processed and may affect to same LF stove and RH stove.
but find through long term production, only has the left and right service life of above-mentioned ladle 110 times, also there is a certain distance 140 times with the life-span of design at that time, learn by the residual brick after analyzing ladle and rolling off the production line: ladle 95% the situation of normally rolling off the production line is to roll off the production line because it's thin causing is past the working lining thickness of ladle nozzle side, because in order to prevent the ladle bleed-out and to guarantee the safe operation of ladle, the ladle of domestic steel mill is that approximately 50mm just stops using and rolls off the production line overhaul at working lining thickness usually, and rear ladle each position of rolling off the production line residual turns residual thick differing, residual thick difference can reach 20～50mm, the brick that is all the other positions is in the waste state, caused to a great extent the waste of anti-material, thereby affected the service life of ladle.
The utility model content
For the deficiencies in the prior art, one of the purpose of this utility model is to solve the one or more problems that exist in above-mentioned prior art.
The purpose of this utility model is to provide a kind of and reduces ladle lining consumption and extend the ladle life shaped steel bag in service life.
To achieve these goals, the utility model provides a kind of life shaped steel bag, described ladle comprises ladle bowl and liner, liner comprises the working lining that directly contacts with molten steel, described working lining comprises the carbon-free ladle brick layer of slag line brick layer, Bao Bi middle and lower part on Bao Bi top and the cast bed of material at the bottom of bag, ladle bottom is provided with the mouth of a river, and the carbon-free ladle brick layer at 1/4～1/2 circular arc position of the mouth of a river one side of ladle adopts the carbon-free ladle brick of thickening 15～25mm than the carbon-free ladle brick layer at all the other positions.
According to an embodiment of life shaped steel bag of the present utility model, the carbon-free ladle brick layer at 1/4 circular arc position of the mouth of a river one side of described ladle adopts the carbon-free ladle brick of thickening 20mm than the carbon-free ladle brick layer at all the other positions.
Adopt life shaped steel bag of the present utility model, in the service life that can effectively save refractory material and improve ladle, be conducive to save cost.
Description of drawings
Fig. 1 is the carbon-free ladle brick structural representation of steel ladle working layer of the prior art.
Fig. 2 is the carbon-free ladle brick structural representation of working lining of the life shaped steel bag of the utility model exemplary embodiment.
The specific embodiment
Below, describe exemplary embodiment of the present utility model in detail with reference to accompanying drawing.
Fig. 1 is the carbon-free ladle brick structural representation of steel ladle working layer of the prior art, and Fig. 2 is the carbon-free ladle brick structural representation of working lining of the life shaped steel bag of the utility model exemplary embodiment.As shown in Figure 1, the carbon-free ladle brick of steel ladle working layer of the prior art be designed and sized to 1696/1907mm * 210mm * 100mm, wherein the outer arc radius R be 1907mm, inner arc radius r be 1696mm, outer arc width a be 290mm (deviation is 0～1mm), inner arc width b is 258mm (and deviation for-1～0mm), the thick h of brick is that high (deviation is 0～0.5mm) for 100mm for 210mm, brick.
Comprise ladle bowl and liner according to the life shaped steel bag of exemplary embodiment of the present utility model, liner comprises the working lining that directly contacts with molten steel, working lining comprises the carbon-free ladle brick layer of slag line brick layer, Bao Bi middle and lower part on Bao Bi top and the cast bed of material at the bottom of bag, ladle bottom is provided with the mouth of a river, and the carbon-free ladle brick layer at 1/4～1/2 circular arc position of the mouth of a river one side of ladle adopts the carbon-free ladle brick of thickening 15～25mm than the carbon-free ladle brick layer at all the other positions.
Because the main task of ladle is converter molten steel to be cast to safely carry out continuous casting in tundish, therefore need to design at ladle bottom the mouth of a river (for example being positioned at the position at distance bag center, the end 3/4) of a tapping, and the process of mouth of a river tapping can cause the molten steel line to cause the refractory corrosion aggravation on its side, thereby the residual brick variable thickness in each position occurs.Generally speaking, the liner working lining of ladle comprises the carbon-free ladle brick of slag line brick layer, Bao Bi middle and lower part on Bao Bi top and the cast bed of material at the bag end, wherein the slag line brick layer on Bao Bi top can be by changing the slag line brick and wrapping the cast bed of material at the end and can safeguard by again pouring into a mould impartial light maintenance, the carbon-free ladle brick layer of Bao Bi middle and lower part can't be by light maintenance, only have by stopping using and cultivate greatly maintenance, so (a tank labour pattern forms: be to determine in the life-span by carbon-free ladle brick service life overhaul+light maintenance+light maintenance) for ladle tank labour.Through long production practices with by abundant researching and analysing the headroom of ladle, attached heavy, residual thick difference and erosion rate, the inventor finds, the carbon-free ladle brick layer at 1/4～1/2 circular arc position of the mouth of a river one side of ladle adopts more than the carbon-free ladle brick of thickening 15～25mm than the carbon-free ladle brick layer at all the other positions can improve ladle stove in service lifes 10.
Preferably, the carbon-free ladle brick layer at 1/4 circular arc position of the mouth of a river one side of ladle adopts the carbon-free ladle brick of thickening 20mm than the carbon-free ladle brick layer at all the other positions.
According to an example of the present utility model, as shown in Figure 2, the carbon-free ladle brick of thickening is designed and sized to 1676/1907mm * 230mm * 100mm, wherein the outer arc radius R be 1907mm, inner arc radius r be 1676mm, outer arc width a be 290mm (deviation is 0～1mm), inner arc width b is 255mm (and deviation for-1～0mm), the thick h of brick is that high (deviation is 0～0.5mm) for 100mm for 230mm (namely increase thickness h ' be 20mm), brick.
Adopt the utility model not only can effectively improve the service life of ladle, and significantly improve the benefit of steel mill, have great application value.
Although the above illustrates and has described the utility model in conjunction with the embodiments, but what those skilled in the art will appreciate that is, in the situation that do not break away from the spirit and scope of the present utility model that limit as claims, can make the various changes on form and details here.
Claims (2)
1. life shaped steel bag, described ladle comprises ladle bowl and liner, liner comprises the working lining that directly contacts with molten steel, described working lining comprises the carbon-free ladle brick layer of slag line brick layer, Bao Bi middle and lower part on Bao Bi top and the cast bed of material at the bottom of bag, ladle bottom is provided with the mouth of a river, it is characterized in that, the carbon-free ladle brick layer at 1/4～1/2 circular arc position of the mouth of a river one side of described ladle adopts the carbon-free ladle brick of thickening 15～25mm than the carbon-free ladle brick layer at all the other positions.
2. life shaped steel bag according to claim 1, is characterized in that, the carbon-free ladle brick layer at 1/4 circular arc position of the mouth of a river one side of described ladle adopts the carbon-free ladle brick of thickening 20mm than the carbon-free ladle brick layer at all the other positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631398 CN202921910U (en) | 2012-11-26 | 2012-11-26 | Service life prolonging type steel ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631398 CN202921910U (en) | 2012-11-26 | 2012-11-26 | Service life prolonging type steel ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202921910U true CN202921910U (en) | 2013-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631398 Expired - Lifetime CN202921910U (en) | 2012-11-26 | 2012-11-26 | Service life prolonging type steel ladle |
Country Status (1)
| Country | Link |
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| CN (1) | CN202921910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856689A (en) * | 2018-07-05 | 2018-11-23 | 郑州振东科技有限公司 | A kind of arc prefabricated section and the method using arc prefabricated section masonry permanent ladle layer |
-
2012
- 2012-11-26 CN CN 201220631398 patent/CN202921910U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856689A (en) * | 2018-07-05 | 2018-11-23 | 郑州振东科技有限公司 | A kind of arc prefabricated section and the method using arc prefabricated section masonry permanent ladle layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
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| CX01 | Expiry of patent term |