CN105695725A - Construction method of annular heating furnace hearth working layer provided with expansion gaps - Google Patents
Construction method of annular heating furnace hearth working layer provided with expansion gaps Download PDFInfo
- Publication number
- CN105695725A CN105695725A CN201610074622.8A CN201610074622A CN105695725A CN 105695725 A CN105695725 A CN 105695725A CN 201610074622 A CN201610074622 A CN 201610074622A CN 105695725 A CN105695725 A CN 105695725A
- Authority
- CN
- China
- Prior art keywords
- heating furnace
- working lining
- annular heating
- working layer
- construction method
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1626—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/02—Charges containing ferrous elements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention relates to a construction method of an annular heating furnace hearth working layer provided with expansion gaps. The construction method comprises the steps of: (1) construction of a reference line; (2) support of strip-shaped groove molds: the strip-shaped groove molds are radially spaced on a working layer pouring block surface between an inner ring beam and an outer ring beam; and (3) molding of the working layer: working layer pouring block molds are erected; working layer pouring blocks are spaced and poured one by one; after all the working layer pouring blocks are poured, the mold disassembly is performed; strip-shaped grooves are radially spaced in the surface of the annular heating furnace hearth working layer, and are triangular; and the construction of the annular heating furnace hearth working layer is finished. According to a hearth manufactured by the construction method, a steel blank cannot roll and incline in the heating process, and is uniformly heated without causing excessive oxidation, so that oxide scales are prevented from melting to erode a hearth working layer castable, the service life of the hearth is prolonged, and the overhauling times are reduced.
Description
Present patent application is number of patent application is 201210575824.2, and patent name is furnace bottom of annular heating furnace working lining construction method, and the applying date is the divisional application of 2012.12.26。
Technical field
The invention belongs to rotary heating furnace field, especially a kind of furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint。
Background technology
At metallurgy industry, rotary heating furnace be tube rolling station-service to heat the Thermal Equipment of circular steel blank, its furnace bottom working lining castable generally pours into plane, puts into steel billet above through pucellas, furnace bottom rotate it is heated。In use, the problem of exposing has furnace bottom: due to the plane of furnace bottom and rotation after charging, causes steel billet to roll, and blank spacing is either large or small, makes heating uneven。Some steel billets lean on mutually, and during discharging, pucellas is likely to scratch adjacent steel billet, the quality of influence of rolled。Some steel billets tilt, and during discharging, pucellas can't clip, and cause continuation heating, hyperoxidation, and iron scale melts, and corrodes furnace bottom working lining castable, shortens the service life of furnace bottom, increase maintenance number of times, expand cost。
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, a kind of furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint is provided, this construction method is simple, can effectively prevent steel blank from occurring when furnace bottom rotates to roll phenomenon, to the heating quality improving steel blank, and the service life extending stove plays extraordinary facilitation。
This invention address that its technical problem is achieved through the following technical solutions:
A kind of furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint, construction method step is:
(1), datum line construction: outside rotary heating furnace, input and output material centrage is hung and survey on stove outer platform, after the furnace bottom sublevel between rotary heating furnace inner ring beam and outer-ring beam has been constructed, by in outer for rotary heating furnace input and output material centrage pilot measurement to furnace bottom of annular heating furnace sublevel, as the datum line of working lining on furnace bottom of annular heating furnace sublevel；
(2), install strip groove mould；Strip groove mould spaced radial is erected on the working lining castable face between inner ring beam and outer-ring beam；
(3), working lining molding: erection working lining castable mould, working lining castable adopts interval piecemeal cast；Carrying out form removal after all working layer castable is poured, furnace bottom of annular heating furnace working lining surface forms radially spaced strip groove, and the construction of furnace bottom of annular heating furnace working lining is complete。
The cross section of above-mentioned strip groove is triangle。
It is shaped with dilatation joint between the working lining castable of above-mentioned furnace bottom of annular heating furnace working lining。
Above-mentioned strip groove mould adopts 2mm thickness iron sheet to be made。
Advantages of the present invention and having the beneficial effect that
1, originally it is furnished with after the furnace bottom of annular heating furnace working lining construction method of dilatation joint sets up strip groove owing to furnace bottom rotates and feeding device synchronizes, steel billet can put into strip groove accurately, and steel billet will not roll, and steel billet is put uniformly, homogeneous heating, meets the requirement of rolling；And put uniformly due to steel billet and leave gap between steel billet, during discharging, steel billet is clamped by pucellas exactly, it is ensured that rolling quality。
2, steel billet will not roll tilt in heating process to be originally furnished with furnace bottom that the furnace bottom of annular heating furnace working lining construction method of dilatation joint makes, heating steel billet is uniform, do not result in billet oxidization excessive, prevent iron scale from melting and corrode furnace bottom working lining castable, extend the service life of furnace bottom, reduce maintenance number of times。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial sectional view of strip groove of the present invention。
Detailed description of the invention
Below by specific embodiment, the invention will be further described, and following example are illustrative, is not determinate, it is impossible to limit protection scope of the present invention with this。
A kind of furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint, construction method step is:
(1), datum line construction: outside rotary heating furnace, input and output material centrage is hung and survey on stove outer platform, after the furnace bottom sublevel between rotary heating furnace inner ring beam 1 and outer-ring beam 6 has been constructed, by in outer for rotary heating furnace input and output material centrage pilot measurement to furnace bottom of annular heating furnace sublevel, as the datum line of working lining on furnace bottom of annular heating furnace sublevel；
(2), install strip groove mould；Being erected on the working lining castable face between inner ring beam and outer-ring beam by strip groove mould spaced radial, strip groove mould adopts 2mm thickness iron sheet to be made；When installing strip groove mould, it is possible to first arc is packed in inside inner ring beam and outer-ring beam, then strip groove mould is set up and be fixed on arc；Arc length is generally 4m；Arc upper surface has carved strip groove according to design size, as the foundation of location。The strip groove that 8 × 60mm cross section is triangle adopts 2mm thickness iron sheet to be made, and length is determined according to furnace bottom width；
(3), working lining molding: erection working lining castable mould, working lining castable 5 adopts interval piecemeal cast；Form removal is carried out after all working layer castable is poured, furnace bottom of annular heating furnace working lining surface forms radially spaced strip groove 3, the cross section of strip groove is triangle, the construction of furnace bottom of annular heating furnace working lining is complete, being shaped with dilatation joint between the working lining castable of furnace bottom of annular heating furnace working lining, this dilatation joint includes expanded radially seam 2 and circumferential expansion seam 4。
Claims (3)
1. the furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint, it is characterised in that: this construction method step is:
(1), datum line construction: outside rotary heating furnace, input and output material centrage is hung and survey on stove outer platform, after the furnace bottom sublevel between rotary heating furnace inner ring beam and outer-ring beam has been constructed, by in outer for rotary heating furnace input and output material centrage pilot measurement to furnace bottom of annular heating furnace sublevel, as the datum line of working lining on furnace bottom of annular heating furnace sublevel；
(2), install strip groove mould；Strip groove mould spaced radial is erected on the working lining castable face between inner ring beam and outer-ring beam；It is shaped with dilatation joint between the working lining castable of furnace bottom of annular heating furnace working lining；
(3), working lining molding: erection working lining castable mould, working lining castable adopts interval piecemeal cast；Carrying out form removal after all working layer castable is poured, furnace bottom of annular heating furnace working lining surface forms radially spaced strip groove, and the construction of furnace bottom of annular heating furnace working lining is complete。
2. the furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint according to claim 1, it is characterised in that: the cross section of described strip groove is triangle。
3. the furnace bottom of annular heating furnace working lining construction method being furnished with dilatation joint according to claim 1, it is characterised in that: described strip groove mould adopts 2mm thickness iron sheet to be made。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074622.8A CN105695725B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method equipped with dilatation joint |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074622.8A CN105695725B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method equipped with dilatation joint |
| CN201210575824.2A CN103898311B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210575824.2A Division CN103898311B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105695725A true CN105695725A (en) | 2016-06-22 |
| CN105695725B CN105695725B (en) | 2018-08-03 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610074622.8A Active CN105695725B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method equipped with dilatation joint |
| CN201610075047.3A Active CN105543467B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method based on triangle strip groove |
| CN201210575824.2A Active CN103898311B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610075047.3A Active CN105543467B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method based on triangle strip groove |
| CN201210575824.2A Active CN103898311B (en) | 2012-12-26 | 2012-12-26 | Furnace bottom of annular heating furnace working lining construction method |
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| CN (3) | CN105695725B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543467A (en) * | 2012-12-26 | 2016-05-04 | 中冶天工集团有限公司 | Triangular-strip-groove-based annular heating furnace bottom working layer construction method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643139B (en) * | 2016-12-28 | 2018-11-06 | 中冶天工集团天津有限公司 | Heating furnace framework module construction method of installation |
| CN109405539B (en) * | 2018-09-29 | 2020-08-18 | 河冶科技股份有限公司 | Annular furnace bottom knotting method, annular furnace bottom and annular furnace |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543467A (en) * | 2012-12-26 | 2016-05-04 | 中冶天工集团有限公司 | Triangular-strip-groove-based annular heating furnace bottom working layer construction method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU709699A1 (en) * | 1974-11-26 | 1980-01-15 | Челябинский Ордена Ленина Трубопрокатный Завод | Mobile sole of circular heating oven |
| CN2270055Y (en) * | 1995-12-18 | 1997-12-10 | 鞍山钢铁学院 | Ring heating furnace for continuous casting and rolling |
| DE19952397A1 (en) * | 1999-10-29 | 2001-05-03 | Loi Thermprocess Gmbh | Rotary hearth furnace for the heat treatment of workpieces |
| CN201540023U (en) * | 2009-11-17 | 2010-08-04 | 上海宝钢工业检测公司 | Ring shaped stove bottom preventing material merging |
-
2012
- 2012-12-26 CN CN201610074622.8A patent/CN105695725B/en active Active
- 2012-12-26 CN CN201610075047.3A patent/CN105543467B/en active Active
- 2012-12-26 CN CN201210575824.2A patent/CN103898311B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543467A (en) * | 2012-12-26 | 2016-05-04 | 中冶天工集团有限公司 | Triangular-strip-groove-based annular heating furnace bottom working layer construction method |
Non-Patent Citations (2)
| Title |
|---|
| 江苏省建筑安全与设备管理协会主编: "《江苏省建筑安装工程施工技术操作规程 合订本》", 30 September 2007 * |
| 葛霖主编: "《筑炉手册》", 31 July 1994 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543467A (en) * | 2012-12-26 | 2016-05-04 | 中冶天工集团有限公司 | Triangular-strip-groove-based annular heating furnace bottom working layer construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105543467B (en) | 2018-08-03 |
| CN103898311A (en) | 2014-07-02 |
| CN105695725B (en) | 2018-08-03 |
| CN105543467A (en) | 2016-05-04 |
| CN103898311B (en) | 2016-05-18 |
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