CN204455193U - A kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing - Google Patents
A kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing Download PDFInfo
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- CN204455193U CN204455193U CN201520024512.1U CN201520024512U CN204455193U CN 204455193 U CN204455193 U CN 204455193U CN 201520024512 U CN201520024512 U CN 201520024512U CN 204455193 U CN204455193 U CN 204455193U
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- air blowing
- slit
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- brick body
- type ventilating
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Abstract
For a tiltedly logical slot-type ventilating brick for ladle bottom blowing, belong to technical field of ferrous metallurgy.The utility model comprises the brick body be made up of refractory materials, and brick body adopts circular cone structure, and have some air blowing slits in brick body internal layout, air blowing slit distributes radially, or distributes in the form of a ring, and air blowing slit and brick body baseplane have inclination angle; When air blowing slit distributes radially, some air blowing slits are relative to the uniform setting of radiation center; When air blowing slit distributes in the form of a ring, some air blowing slits are the center of circle and arranged concentric with ring center; The wavelength width of a slit of air blowing slit is 0.1 ~ 1mm; The inclination angle of air blowing slit and brick body baseplane is 60 ° ~ 90 °.The utility model is compared with traditional slot-type ventilating brick, the range of influence of fluerics is larger, and plume district volume also obviously increases, and reduces the area in dead band, the interaction time of stirring gas and molten steel is increased, strengthens bottom blowing to the stirring of molten steel and cleaning action.
Description
Technical field
The utility model belongs to technical field of ferrous metallurgy, particularly relates to a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing.
Background technology
Carrying out continuous casting production with external refining process, stirring gas is blown in ladle by the gas permeable brick of ladle bottom, being blown into by stirring gas, make the rapid dispersion fusings such as the alloy of interpolation, reductor, sweetening agent, the bubble that stirring gas produces in molten steel simultaneously can also promote the floating of inclusion, be beneficial to the removal of inclusion, therefore, the blowing effect of gas permeable brick has material impact to quality of molten steel.
At present, the gas permeable brick applied in actual production roughly has three types, comprises diffuse type gas permeable brick, straight-through cellular type gas permeable brick and traditional slot-type ventilating brick.
For diffuse type gas permeable brick, although can produce little and uniform bubble, its brick body is often with the more pore that runs through, therefore molten steel easily permeates, and adds nodulizing, often makes brick surface go bad, cause stirring gas flow to reduce, its work-ing life is not high.
For straight-through cellular type gas permeable brick, although can produce stable air-flow, air flow is too little, and metallurgical effect is not good.
For traditional slot-type ventilating brick, although stable air-flow can be produced, produce small size bubbles simultaneously, the air flow amplitude of accommodation is large, and molten steel not easily permeates, but, still its deficiency existed has been found in actual application, because the gap of traditional slot-type ventilating brick all vertically distributes, because the jet speed of its pneumatic outlet is larger, fluerics range of influence is less, the volume in plume district is also less, the stirring action of stirring gas can not be given full play to, therefore there is larger dead band, weak current district and weak tendency district, and the interaction time of stirring gas and molten steel is short, also bottom blowing cannot just be given full play to the stirring of molten steel and cleaning action.
Compared to diffuse type gas permeable brick, straight-through cellular type gas permeable brick, the effect of traditional slot-type ventilating brick is still best, if but do not solve the weak point of traditional slot-type ventilating brick, still cannot improve the blowing effect of gas permeable brick further, also just cannot obtain the more excellent molten steel of quality.
Utility model content
For prior art Problems existing, the utility model provides a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing, can overcome the weak point of traditional slot-type ventilating brick, effectively improve the blowing effect of gas permeable brick, to obtain the more excellent molten steel of quality.
To achieve these goals, the utility model adopts following technical scheme: a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing, comprise the brick body be made up of refractory materials, described brick body adopts circular cone structure, some air blowing slits are had in brick body internal layout, described air blowing slit distributes radially, or distributes in the form of a ring, and air blowing slit and brick body baseplane have inclination angle.
When described air blowing slit distributes radially, the quantity of air blowing slit is 10 ~ 80, and some air blowing slits are relative to the uniform setting of radiation center.
When described air blowing slit distributes in the form of a ring, the quantity of air blowing slit is 1 ~ 60, and some air blowing slits are the center of circle and arranged concentric with ring center.
The wavelength width of a slit of described air blowing slit is 0.1 ~ 1mm.
The inclination angle of described air blowing slit and brick body baseplane is 60 ° ~ 90 °.
The beneficial effects of the utility model:
The utility model is compared with traditional slot-type ventilating brick, the range of influence of fluerics is larger, and plume district volume also obviously increases, and reduces the area in dead band, the interaction time of stirring gas and molten steel is increased, strengthens bottom blowing to the stirring of molten steel and cleaning action.
Accompanying drawing explanation
Fig. 1 is the tiltedly logical slot-type ventilating brick vertical view that air blowing slit distributes radially;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is the ring-shaped distributed tiltedly logical slot-type ventilating brick vertical view of air blowing slit;
Fig. 4 is B-B sectional view in Fig. 3;
Fig. 5 tiltedly leads to slot-type ventilating brick and the comparison diagram of traditional slot-type ventilating brick on blowing effect;
In figure, 1-brick body, 2-air blowing slit, 3-tiltedly logical slot-type ventilating brick, 4-ladle, 5-fluerics, 6-plume district.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing, comprise the brick body 1 be made up of refractory materials, described brick body 1 adopts circular cone structure, some air blowing slits 2 are had in brick body 1 internal layout, described air blowing slit 2 distributes radially, or distribute in the form of a ring, and air blowing slit 2 and brick body 1 baseplane have inclination angle.
As shown in Figure 1, 2, when described air blowing slit 2 distributes radially, the quantity of air blowing slit 2 is 12, and 12 air blowing slits 2 are relative to the uniform setting of radiation center.
As shown in Figure 3,4, when described air blowing slit 2 distributes in the form of a ring, the quantity of air blowing slit 2 is 3, and some air blowing slits 2 are the center of circle and arranged concentric with ring center.
The wavelength width of a slit of described air blowing slit 2 is 0.1mm.
Described air blowing slit 2 is 80 ° with the inclination angle of brick body 1 baseplane.
In the present embodiment, stirring gas is argon gas, and blow gas pressure scope control is at 0.1 ~ 1.5MPa, and argon flow amount scope control is at 10 ~ 80m
3/ h, the gas permeable brick adopted is tiltedly logical slot-type ventilating brick of the present utility model, carrying out continuous casting production with external refining process, when the tiltedly logical slot-type ventilating brick of stirring gas by ladle bottom is blown into after in ladle, the inclination direction that microgas is known from experience along air blowing slit 2 sprays, compared to traditional slot-type ventilating brick, the range of influence of fluerics is larger, plume district volume also obviously increases, reduce the area in dead band, the interaction time of stirring gas and molten steel is increased, strengthens bottom blowing to the stirring of molten steel and cleaning action.As shown in Figure 5, dotted line in figure represents fluerics 5 when adopting traditional slot-type ventilating brick to carry out ladle bottom blowing and border, plume district 6, solid line represents fluerics 5 when adopting tiltedly logical slot-type ventilating brick to carry out ladle bottom blowing and border, plume district 6, no matter be fluerics 5 or plume district 6, after have employed tiltedly logical slot-type ventilating brick of the present utility model, regional extent is obtained for obvious expansion, thus effectively improves the blowing effect of gas permeable brick.
Claims (5)
1. the tiltedly logical slot-type ventilating brick for ladle bottom blowing, it is characterized in that: comprise the brick body be made up of refractory materials, described brick body adopts circular cone structure, some air blowing slits are had in brick body internal layout, described air blowing slit distributes radially, or distribute in the form of a ring, and air blowing slit and brick body baseplane have inclination angle.
2. a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing according to claim 1, it is characterized in that: when described air blowing slit distributes radially, the quantity of air blowing slit is 10 ~ 80, and some air blowing slits are relative to the uniform setting of radiation center.
3. a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing according to claim 1, it is characterized in that: when described air blowing slit distributes in the form of a ring, the quantity of air blowing slit is 1 ~ 60, and some air blowing slits are the center of circle and arranged concentric with ring center.
4. a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing according to claim 1, is characterized in that: the wavelength width of a slit of described air blowing slit is 0.1 ~ 1mm.
5. a kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing according to claim 1, is characterized in that: the inclination angle of described air blowing slit and brick body baseplane is 60 ° ~ 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024512.1U CN204455193U (en) | 2015-01-14 | 2015-01-14 | A kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024512.1U CN204455193U (en) | 2015-01-14 | 2015-01-14 | A kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204455193U true CN204455193U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520024512.1U Expired - Fee Related CN204455193U (en) | 2015-01-14 | 2015-01-14 | A kind of tiltedly logical slot-type ventilating brick for ladle bottom blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204455193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111534664A (en) * | 2020-06-10 | 2020-08-14 | 北京联合荣大工程材料股份有限公司 | Ladle and ventilating device for bottom blowing of ladle |
| CN111893244A (en) * | 2020-07-30 | 2020-11-06 | 武汉科技大学 | Air brick for bottom blowing of fine argon bubbles for ladle refining |
| CN112501378A (en) * | 2020-11-23 | 2021-03-16 | 东北大学 | Top-bottom combined blown converter and steelmaking method |
-
2015
- 2015-01-14 CN CN201520024512.1U patent/CN204455193U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111534664A (en) * | 2020-06-10 | 2020-08-14 | 北京联合荣大工程材料股份有限公司 | Ladle and ventilating device for bottom blowing of ladle |
| CN111893244A (en) * | 2020-07-30 | 2020-11-06 | 武汉科技大学 | Air brick for bottom blowing of fine argon bubbles for ladle refining |
| CN112501378A (en) * | 2020-11-23 | 2021-03-16 | 东北大学 | Top-bottom combined blown converter and steelmaking method |
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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 |
Granted publication date: 20150708 Termination date: 20160114 |