CN102990018B - Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace - Google Patents
Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace Download PDFInfo
- Publication number
- CN102990018B CN102990018B CN201210521180.9A CN201210521180A CN102990018B CN 102990018 B CN102990018 B CN 102990018B CN 201210521180 A CN201210521180 A CN 201210521180A CN 102990018 B CN102990018 B CN 102990018B
- Authority
- CN
- China
- Prior art keywords
- graphite
- crystallizer
- holding furnace
- cast iron
- graphite sleeve
- 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
Links
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a slow-condensing interface structure for a crystallizer for cast iron horizontal continuous casting and a heat preserving furnace. A hearth is arranged in the heat preserving furnace, a graphite sleeve is arranged in the crystallizer, and an end part of the graphite sleeve connected with the hearth is covered with a refractory layer with a horn opening. The structure disclosed by the invention has the advantages that after the structure is adopted, as the end part of the graphite sleeve is covered with a refractory layer with a horn opening, and the upper edge coverage width is larger than the lower edge coverage width, a part of the graphite sleeve exposed out of the lower edge of the graphite sleeve is larger than that exposed out of the upper edge of the graphite sleeve, and graphite around the inner hole of the graphite sleeve is exposed. In such a way, molten iron can preheat the molten iron inlet end part of the graphite sleeve, especially the end part of the lower edge of the graphite sleeve, so that the molten iron after entering the inlet end of the graphite sleeve is uneasy to produce condensate iron, therefore, the scab and crack defects of profiles are lowered, a defect that coarse edges are produced as graphite scratches profiles is reduced, the slag clamping defects of profiles are reduced, and the section uniformity of profiles is greatly increased, so that the quality problems of profiles are reduced, and the rate of finished products of profiles is improved.
Description
Technical field
The present invention relates to the retardation setting type interface structure of a kind of cast iron horizontal continuous caster crystallizer and holding furnace.
Background technology
At present, in the production practices of cast iron profile material horizontal casting, crystallizer molten iron arrival end and holding furnace joint, generally make graphite cannula and stretch out certain length, and remainder refractory material is made the pass consistent with graphite cannula internal via shape and docked with holding furnace and assemble.Although this structure can meet need of production, but because refractory material composition section hinders the pre-heat effect of molten iron to crystallizer graphite arrival end, molten iron is made namely to produce solidifying iron before entering crystallizer graphite cannula die cavity, and bond with refractory material, convex closure is formed time serious, blocking molten iron passage, is produce normally to carry out.This structure is especially at production small section main Problems existing: section bar scabs greatly, deeply; Section bar crackle is many; Section bar slag inclusion is many; Crystallizer graphite cannula easily scratches, and section bar hair rib is serious.Cause product forms of poor quality, section bar yield rate is lower.
Summary of the invention
The present invention proposes a kind of cast iron horizontal continuous caster crystallizer and holding furnace retardation setting type interface structure, and it effectively solves refractory material and hinders the problem of molten iron to the preheating of graphite cannula arrival end, and the quality problems of section bar are greatly reduced, and section bar yield rate promotes greatly.
Technical scheme of the present invention is achieved in that the retardation setting type interface structure of a kind of cast iron horizontal continuous caster crystallizer and holding furnace, burner hearth is provided with in described holding furnace, be provided with graphite cannula in described crystallizer, described graphite cannula is coated with the flame retardant coating of horn opening in the end be connected with burner hearth.
As preferably, described flame retardant coating covers outside graphite cannula end, and graphite cannula endoporus upper edge graphite area coverage is greater than lower edge graphite area coverage.
As preferably, described crystallizer is connected by quick change plate wedge with holding furnace.
As preferably, described quick change plate is welded with fixed frame.
As preferably, described flame retardant coating is that the space filling fire resisting material surrounded by graphite cannula end, quick change plate, fixed frame is formed.
As preferably, described crystallizer comprises forward flange, rear flange and baffle plate, and described forward flange and baffle plate are bolted to connection.
As preferably, described rear flange and quick change plate are bolted to connection.
Beneficial effect of the present invention is: after adopting said structure, owing to being coated with the flame retardant coating of horn opening in graphite cannula end, and upper edge cover width is greater than lower edge cover width, so the graphite cannula part that graphite cannula lower edge is exposed is more than upper edge, graphite cannula inner bore perimeter graphite is exposed.So molten iron can preheating graphite cannula molten iron inlet end portion, especially end, graphite cannula lower edge, molten iron enters the arrival end of graphite cannula, not easily produce solidifying iron, greatly reduce that section bar scabs, crack defect, greatly reduce because graphite scratches the defect that section bar produces hair rib, greatly reduce section bar dreg defect, section material section uniformity significantly promotes, and the quality problems of section bar are greatly reduced, and section bar yield rate promotes greatly.
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the planar structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the sectional view of A-A in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As depicted in figs. 1 and 2, a kind of cast iron horizontal continuous caster crystallizer and holding furnace retardation setting type interface structure, be provided with burner hearth 4 in described holding furnace 2, be provided with graphite cannula 6 in described crystallizer 1, described graphite cannula 6 is coated with the flame retardant coating 3 of horn opening in the end be connected with burner hearth 4.Described flame retardant coating 3 covers outside graphite cannula 6 end, and graphite cannula 6 endoporus upper edge graphite area coverage is greater than lower edge graphite area coverage, in the present embodiment, described crystallizer 1 is connected with wedge by quick change plate 5 with holding furnace 2, described quick change plate 5 is welded with fixed frame 7, described flame retardant coating 3 is by graphite cannula 6 end, quick change plate 5, the space filling fire resisting material that fixed frame 7 surrounds generates, described crystallizer 1 comprises forward flange 11, rear flange 12 and baffle plate 13, described forward flange 11 is bolted to connection with baffle plate 13, described rear flange 12 is bolted to connection with quick change plate 5.
This device is mainly used in production, the section bar of small dimension, in use, the forward flange 11 of crystallizer 1 is fixedly connected with bolt with baffle plate 13, the graphite cannula 6 producing section bar is fixed in crystallizer 1, the rear flange 12 of crystallizer 1 and quick change plate 5 are connected with bolt and are fixed on quick change plate 5, then flame retardant coating 3 is formed with the space that refractory material filling fixed frame 7, graphite cannula 6, quick change plate 5 are formed, flame retardant coating 3 and fixed frame 7 outerplanar are evened out, are tamped, upper and lower refractory material forms flaring flame retardant coating 3, forms retardation setting type molten iron entrance structure; Then be connected and fixed with wedge by quick change plate 5 and holding furnace 2 by crystallizer 1, the horn mouth cavity dimension that holding furnace 2 molten iron outlet size and Fig. 1 are formed matches, and so far, Operational preparation process terminates.Molten iron pours holding furnace 2 into from burner hearth 4, and in graphite cannula 6, molten iron is through cooling forming, draws from the other end of graphite cannula 6, and the continuous casting that can realize section bar is produced.Owing to being coated with the flame retardant coating 3 of horn opening at graphite cannula 6 molten iron upstream end, and be greater than lower edge cover width along hole end surface upper edge cover width in graphite cannula, graphite cannula 6 part that graphite cannula 6 lower edge is exposed is more than upper edge, and graphite cannula inner bore perimeter graphite is exposed.So molten iron can preheating graphite cannula 6 end, especially end, graphite cannula 6 lower edge, molten iron enters the arrival end of graphite cannula 6, not easily produce solidifying iron, greatly reduce that section bar scabs, crack defect, greatly reduce because graphite scratches the defect that section bar produces hair rib, greatly reduce section bar dreg defect, section material section uniformity significantly promotes, and the quality problems of section bar are greatly reduced, and section bar yield rate promotes greatly.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. cast iron horizontal continuous caster crystallizer and a holding furnace retardation setting type interface structure, be provided with burner hearth in described holding furnace, be provided with graphite cannula, it is characterized in that in described crystallizer: described graphite cannula is coated with the flame retardant coating of horn opening in the end be connected with burner hearth; Described flame retardant coating covers outside graphite cannula end, and graphite cannula endoporus upper edge graphite area coverage is greater than lower edge graphite area coverage.
2. a kind of cast iron horizontal continuous caster crystallizer according to claim 1 and holding furnace retardation setting type interface structure, is characterized in that: described crystallizer is connected by quick change plate wedge with holding furnace.
3. a kind of cast iron horizontal continuous caster crystallizer according to claim 2 and holding furnace retardation setting type interface structure, is characterized in that: described quick change plate is welded with fixed frame.
4. a kind of cast iron horizontal continuous caster crystallizer according to claim 1 and holding furnace retardation setting type interface structure, is characterized in that: described flame retardant coating is that the space filling fire resisting material surrounded by graphite cannula end, quick change plate, fixed frame is formed.
5. a kind of cast iron horizontal continuous caster crystallizer according to claim 1 and holding furnace retardation setting type interface structure, it is characterized in that: described crystallizer comprises forward flange, rear flange and baffle plate, described forward flange and baffle plate are bolted to connection.
6. a kind of cast iron horizontal continuous caster crystallizer according to claim 5 and holding furnace retardation setting type interface structure, is characterized in that: described rear flange and quick change plate are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521180.9A CN102990018B (en) | 2012-12-05 | 2012-12-05 | Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521180.9A CN102990018B (en) | 2012-12-05 | 2012-12-05 | Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990018A CN102990018A (en) | 2013-03-27 |
| CN102990018B true CN102990018B (en) | 2015-07-08 |
Family
ID=47919427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210521180.9A Expired - Fee Related CN102990018B (en) | 2012-12-05 | 2012-12-05 | Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990018B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003064A (en) * | 1977-08-23 | 1979-03-07 | Krupp Gmbh | Horizontal continuous casting plant for copper and copper alloys |
| CN85109468A (en) * | 1984-12-28 | 1986-06-10 | 日本钢管株式会社 | Molten steel is cast the horizontal continuous casting steel machine of strand |
| FR2576812A1 (en) * | 1985-02-07 | 1986-08-08 | Rotelec Sa | Method for the horizontal continuous casting of metals, particularly steel, and device for implementing this method |
| CN85101308A (en) * | 1985-04-01 | 1987-01-10 | 福斯特-阿尔品公司 | Horizontal continuous cast ingot crystallizer |
| CN203316691U (en) * | 2012-12-05 | 2013-12-04 | 陕西华安铸铁型材有限公司 | Delayed coagulation type interface structure for cast iron horizontal continuous casting crystallizer and heat preserving furnace |
-
2012
- 2012-12-05 CN CN201210521180.9A patent/CN102990018B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003064A (en) * | 1977-08-23 | 1979-03-07 | Krupp Gmbh | Horizontal continuous casting plant for copper and copper alloys |
| CN85109468A (en) * | 1984-12-28 | 1986-06-10 | 日本钢管株式会社 | Molten steel is cast the horizontal continuous casting steel machine of strand |
| FR2576812A1 (en) * | 1985-02-07 | 1986-08-08 | Rotelec Sa | Method for the horizontal continuous casting of metals, particularly steel, and device for implementing this method |
| CN85101308A (en) * | 1985-04-01 | 1987-01-10 | 福斯特-阿尔品公司 | Horizontal continuous cast ingot crystallizer |
| CN203316691U (en) * | 2012-12-05 | 2013-12-04 | 陕西华安铸铁型材有限公司 | Delayed coagulation type interface structure for cast iron horizontal continuous casting crystallizer and heat preserving furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102990018A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104070145A (en) | Manufacturing tooling and efficient production method of large height-diameter ratio circular casting billet | |
| CN207026415U (en) | A kind of Cast-in Bonding roller covers lost foam casting system | |
| CN102886501A (en) | Tooling for efficiently manufacturing wide thick plate blank for wide thick plate rolling machine and manufacture method thereof | |
| CN104259413A (en) | Continuous casting system and process producing large-specification elliptical billets | |
| CN104089490B (en) | A kind of frame-type Copper Water Jacket and casting and molding method thereof | |
| CN105195699A (en) | Temperature control continuous casting machine device | |
| CN102161080B (en) | Manufacturing tool of high-compact wide and thick plate blank for wide and thick plate rolling mill and method | |
| CN203887184U (en) | Ingot mold for round casting blank with large height-diameter ratio | |
| CN203316691U (en) | Delayed coagulation type interface structure for cast iron horizontal continuous casting crystallizer and heat preserving furnace | |
| CN102990018B (en) | Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace | |
| CN203791613U (en) | Casting ladle with open type spout-shaped lining | |
| CN202762983U (en) | Efficient production tool of wide and thick slabs for wide and thick plate rolling mill | |
| CN104624995B (en) | The device of liquid level fluctuation of crystallizer is suppressed under a kind of high pulling rate | |
| CN105522110B (en) | A kind of aluminium alloy model casting band inlays the manufacture craft of steel pipe fitting shell | |
| RU155319U1 (en) | DEVICE FOR CONTINUOUS CASTING AND PRESSING OF THE WELDING WIRE BY THE CONFORM METHOD | |
| CN201267869Y (en) | Unidirectional solidification device of super-thick plate blank | |
| CN208083396U (en) | A kind of semi-continuous casting device inhibiting magnesium alloy ingot blank cracking | |
| CN215749843U (en) | Casting mould for casting beta-corundum arch brick combination | |
| CN204209084U (en) | A kind of continuous casting system producing the oval base of large gauge | |
| KR101186581B1 (en) | Apparatus for sealing surface of molten metal of strip caster with horizontal twin roll | |
| CN104084546B (en) | Device for conducting interrupted vacuum pouring on heavy ingot through sliding nozzle ladles and special guiding pipes | |
| CN204449241U (en) | The device of liquid level fluctuation of crystallizer is suppressed under a kind of high pulling rate | |
| CN210146983U (en) | Argon protection device for mould casting ladle nozzle | |
| ITMI20000458A1 (en) | PERFECTED UNLOADER FOR CONTINUOUS CASTING | |
| CN103567399B (en) | Periodic amorphous mother alloy vacuum induction melting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Slow-condensing interface structure for crystallizer for cast iron horizontal continuous casting and heat preserving furnace Effective date of registration: 20161222 Granted publication date: 20150708 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: SHAANXI HUA AN CONTINUOUS CASTING Co.,Ltd. Registration number: 2016990001159 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201020 Address after: 726000 small and medium sized enterprise park, high tech Zone, Shangzhou District, Shangluo City, Shaanxi Province Patentee after: Shaanxi Junan Jinggong Technology Co.,Ltd. Address before: 710100 No. 62 East Street, Du Zhen, Xi'an, Shaanxi, Changan District Patentee before: SHAANXI HUA AN CONTINUOUS CASTING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20211205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |