CN201257512Y - Ladle bale precedence brick - Google Patents
Ladle bale precedence brick Download PDFInfo
- Publication number
- CN201257512Y CN201257512Y CNU2008201038449U CN200820103844U CN201257512Y CN 201257512 Y CN201257512 Y CN 201257512Y CN U2008201038449 U CNU2008201038449 U CN U2008201038449U CN 200820103844 U CN200820103844 U CN 200820103844U CN 201257512 Y CN201257512 Y CN 201257512Y
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- CN
- China
- Prior art keywords
- hole
- ladle
- brick
- aperture
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model discloses a seating brick on a bale of a ladle, comprising an inverted cone through hole vertically arranged in the middle of a brick body, the lower end aperture of the through hole b is equal to 80 minus 95 mm, the upper end aperture a is equal to 115 minus 125 mm, and the upper end hole wall of the through hole is a curved surface formed by a quarter circular arc with a radius r equal to 25 mm rotating around the center of the through hole. The utility model can effectively improve the fluidity of the gate nozzle of the ladle, and the average fluidity can be improved from 78.08 percent in the past to 94-97 percent.
Description
Technical field
The utility model relates to the ladle that a kind of steel mill uses and wraps brick cup greatly.
Background technology
Along with SPHC smelts improving constantly of heat ratio, ladle nozzle is from the also corresponding decline of flow rate.For this reason, tested multiple drainage sand (comprising quartz sand, MgO-graphite, Al23-Zr2-graphite, Cr2O3-graphite, forsterite, coke grain, quartz-carborundum-graphite, carborundum etc.) once.But, because multiple reason presents instability, unconspicuous effect as: links such as material selection, grain composition, adding operation existing problems, from flow rate less than 75%.Lower when flow rate causes molten steel to continuous casting, be difficult to realize oxidation-less casting, pollute molten steel, the scaling loss mouth of a river, even the influence direct motion of producing.
Summary of the invention
The purpose of this utility model is to provide a kind of ladle to wrap brick cup greatly, and it is simple in structure, is easy to manufacture, and can improve ladle nozzle effectively from flow rate.
The purpose of this utility model is achieved in that a kind of ladle wraps brick cup greatly, be included in the back taper through hole that brick body middle part vertically is provided with, the aperture, lower end of this through hole is b=85-95mm, its aperture, upper end is a=115-125mm, and the upper end hole wall of this through hole is for by a radius being the curved surface that 1/4 circular arc of r=25mm constitutes around through hole center rotation.
By irritating sand later on to the force analysis of last brick cup sinter layer, find original brick cup of going up after having irritated drainage sand, sinter layer suitable for reading is blocked up, end opening is narrow, cause in actual use, the ferrostatic pressure deficiency is so that the sinter layer fragmentation is the basic reason that big bag does not flow automatically.The physical dimension that the utility model is wrapped brick cup greatly to ladle has been done improvement, made the upper end hole wall of through hole into circular arc camber by the straight taper seat in past, increased the sinter layer and the sinter layer lifting surface area of drainage sand like this, made and pile the easier fragmentation of conical drainage sand on the mouth of a river.
The upper and lower through-hole aperture that next has increased last brick cup makes upper and lower mutual correspondence, and the discharge orifice chamfering diminishes, and has increased the actual addition of drainage sand in the hole, and according to actual tracking test, existing brick cup helps the raising from flow rate more.2006 annuals are from flow rate 78.08%, and the change back is stabilized in 94%-97% from flow rate always, thereby has improved ladle nozzle effectively from flow rate.The utility model is simple in structure, is easy to manufacture, and is easy to use.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 looks cross-sectional view for master of the present utility model;
Fig. 2 is a plan structure schematic diagram of the present utility model.
The specific embodiment
A kind of ladle is wrapped brick cup greatly, as shown in Figure 1 and Figure 2, be included in the back taper through hole that brick body middle part vertically is provided with, the aperture, lower end of this through hole is b=85-95mm, its aperture, upper end is a=115-125mm, the upper end hole wall of this through hole for by a radius be 1/4 circular arc of r=25mm around the ring seal curved surface that through hole center rotation constitutes, increased the sinter layer and the sinter layer lifting surface area of drainage sand like this, make and pile the easier fragmentation of conical drainage sand on the mouth of a river.The height h of this curved surface equates with the arc radius r numerical value of curved surface.
The aperture, lower end of this through hole is preferably b=90mm, and its aperture, upper end is preferably a=120mm.
Claims (2)
1, a kind of ladle is wrapped brick cup greatly, be included in the back taper through hole that brick body middle part vertically is provided with, it is characterized in that: the aperture, lower end of this through hole is b=85-95mm, its aperture, upper end is a=115-125mm, and the upper end hole wall of this through hole is for by a radius being the curved surface that 1/4 circular arc of r=25mm constitutes around through hole center rotation.
2, ladle according to claim 1 is wrapped brick cup greatly, it is characterized in that: the aperture, lower end of this through hole is b=90mm, and its aperture, upper end is a=120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201038449U CN201257512Y (en) | 2008-08-26 | 2008-08-26 | Ladle bale precedence brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201038449U CN201257512Y (en) | 2008-08-26 | 2008-08-26 | Ladle bale precedence brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257512Y true CN201257512Y (en) | 2009-06-17 |
Family
ID=40771742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201038449U Expired - Fee Related CN201257512Y (en) | 2008-08-26 | 2008-08-26 | Ladle bale precedence brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201257512Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903918A (en) * | 2016-06-21 | 2016-08-31 | 郑州东升冶金新材料有限公司 | Silicon-carbon drainage agent and preparation method thereof |
-
2008
- 2008-08-26 CN CNU2008201038449U patent/CN201257512Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903918A (en) * | 2016-06-21 | 2016-08-31 | 郑州东升冶金新材料有限公司 | Silicon-carbon drainage agent and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20110826 |