CN104561422B - A kind of air stove sphere section furnace shell once cuts and the method for cold moudling - Google Patents
A kind of air stove sphere section furnace shell once cuts and the method for cold moudling Download PDFInfo
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- CN104561422B CN104561422B CN201510040012.1A CN201510040012A CN104561422B CN 104561422 B CN104561422 B CN 104561422B CN 201510040012 A CN201510040012 A CN 201510040012A CN 104561422 B CN104561422 B CN 104561422B
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Abstract
The invention provides a kind of air stove sphere section furnace shell once to cut and the method for cold moudling, use once cutting and the method for cold moudling, greatly reduce the loss of furnace shell panel material and use the construction cost of heating furnace, improve the construction environment of operator, improve the cyclic utilization rate of mold, and also can guarantee that the fabricating quality of sphere section furnace shell.Concrete grammar uses following technological process: first designs and makes Special mould；Sphere section furnace shell segmentation is divided watt, monolithic watt is made approximate expansion and adds and estimate surplus, Numerical control cutting monolithic furnace shell plate, monolithic furnace shell plate is drawn checkpoint, cold moudling, the data of actual measurement checkpoint, then cut unnecessary estimating surplus and carry out data processing the actual development size of acquisition.Last Numerical control cutting residue furnace shell plate, and will residue furnace shell cold moudling.
Description
Technical field
The present invention relates to the manufacture technology field of ironmaking equipment air stove sphere section furnace shell, particularly to a kind of air stove sphere section
Furnace shell once cuts and the method for cold moudling.
Background technology
Air stove is one of visual plant in ironmaking equipment.Air stove housing typically by cupola well section, shaft section, changeover portion and
Furnace roof section forms, and furnace roof section and section transitions section generally use spherical structure, and sphere is undeveloped curved surface, so can only do
Approximate expansion, this is the major reason causing spherical structure to make difficulty.The traditional fabrication side of air stove sphere section furnace shell
Method is the furnace shell plate surrounding made allowance that will launch, after being heated to certain temperature, compressing, carries out secondary cut the most again,
And secondary cut causes spillage of material big, production efficiency is low, and labor intensity is big；Along with the development of science and technology, the most relatively advanced
Process be will once cutting and the process of hot-forming combination, but hot-forming still exist to increase use heating
The construction cost of stove, also results in operating environment poor, and mold cyclic utilization rate is low, the most hot-forming causes surface of steel plate not
Flat, and the unequal quality problems of steel plate thickness.
Summary of the invention
It is an object of the invention to provide a kind of air stove sphere section furnace shell once to cut and the method for cold moudling, heat can be reduced
The cost that wind furnace sphere section furnace shell makes, improves operating environment, increases mold cyclic utilization rate, reduces the waste of material,
Improve the production efficiency of product.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of air stove sphere section furnace shell once cuts and the method for cold moudling, comprises the following steps:
1) according to the principal radii of sphere section furnace shell, determine the design radial of special mold of colding pressing, and make mold；
2) with special mold compacting monolithic furnace shell of colding pressing, actual blank size is determined；
3) by actual blanking data programming input numerical control cutting machine, residue furnace shell plate is once cut out；
4) residue furnace shell plate is directly placed into cold moudling in mold.
Described suppresses monolithic furnace shell with special mold of colding pressing, and determines that the method for actual blank size comprises the following steps:
1) by the sphere section segmentation as requested of air stove, point watt, sheet-metal unfolding obtains the theoretical size data of furnace shell,
The surrounding of first piece of furnace shell uniformly adds the deformation-compensated surplus estimated, by these data programming input numerical control cutting machine, cutting the
One block of furnace shell plate, and on furnace shell plate, finish checkpoint uniformly, the gross data of record each point；
2) first block of furnace shell plate is put in special mold of colding pressing and suppress, during compacting, consider the springback capacity of steel, with different thick
The pad that adjusts of degree adjusts the radius of curvature of furnace shell each point, in a free state, meets standard with model inspection through lune degree
During requirement, take out furnace shell plate；
3) remeasure the coordinate figure of checkpoint on furnace shell plate, compare with gross data, by unnecessary estimate deformation-compensated remaining
Cut-to-measure is removed, and obtains the furnace shell plate of first piece of standard, thus can determine that the actual blank size of this sphere section furnace shell.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of air stove sphere section furnace shell once cuts and the method for cold moudling, uses once cutting and the method for cold moudling,
Greatly reduce the loss of furnace shell panel material and use the construction cost of heating furnace, improving the construction environment of operator, improve
The cyclic utilization rate of mold, and also can guarantee that the fabricating quality of sphere section furnace shell, bring good effect
Accompanying drawing explanation
Fig. 1 is the sectional drawing of air stove sphere section furnace shell in embodiment；
Fig. 2 is point vatu of air stove sphere section furnace shell in embodiment
Fig. 3 is the theoretical expanded view of air stove sphere section furnace shell approximate expansion in embodiment；
Fig. 4 is the standard expanded view that in embodiment, the furnace shell correction of air stove sphere section is complete；
Fig. 5 is the compensation dosage coordinate diagram of air stove sphere section furnace shell surrounding in embodiment；
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail, it should be noted that the enforcement of the present invention be not limited to
Under embodiment.
A kind of air stove sphere section furnace shell once cuts and the method for cold moudling, comprises the following steps:
1) according to the principal radii of sphere section furnace shell, determine the design radial of special mold of colding pressing, and make mold；Mold
Design radial is more bigger than principal radii；
2) with special mold compacting monolithic furnace shell of colding pressing, actual blank size is determined；
3) by actual blanking data programming input numerical control cutting machine, residue furnace shell plate is once cut out；
4) residue furnace shell plate is directly placed into cold moudling in mold.
Described suppresses monolithic furnace shell with special mold of colding pressing, and determines that the method for actual blank size comprises the following steps:
1) by the sphere section segmentation as requested of air stove, point watt, sheet-metal unfolding obtains the theoretical size data of furnace shell,
The surrounding of first piece of furnace shell uniformly adds the deformation-compensated surplus estimated, by these data programming input numerical control cutting machine, cutting the
One block of furnace shell plate, and on furnace shell plate, finish checkpoint uniformly, the gross data of record each point；
2) first block of furnace shell plate is put in special mold of colding pressing and suppress, during compacting, consider the springback capacity of steel, with different thick
The pad that adjusts of degree adjusts the radius of curvature of furnace shell each point, in a free state, meets standard with model inspection through lune degree
During requirement, take out furnace shell plate；
3) remeasure the coordinate figure of checkpoint on furnace shell plate, compare with gross data, by unnecessary estimate deformation-compensated remaining
Cut-to-measure is removed, and obtains the furnace shell plate of first piece of standard, thus can determine that the actual blank size of this sphere section furnace shell.
During proprietary mold cold moudling, the contact of employing face, linear contact lay are transitioned into the mode of point cantact and suppress.For ensureing
The pre-packing quality that sphere section is final, the radian model of the furnace shell full-length to be used of cold moudling is through parallel
Checking on direction, model to meet the requirements of the standard with the gap of furnace shell.
Embodiment 1: in the comprehensive steel mill of Zha Lande of Iran, radius is 5113mm, and wall thickness is the air stove sphere section of 25mm
The making of furnace shell have employed this method.Its technological process is: design and make special mold of colding pressing, sphere section furnace shell segmentation
Point watt, monolithic watt is made approximate expansion and adds and estimate surplus, Numerical control cutting monolithic furnace shell plate, draw checkpoint, cold moudling,
The data of actual measurement checkpoint, cut and unnecessary estimate surplus, carry out data processing and obtain actual development size, Numerical control cutting
Residue furnace shell plate, cold moudling residue furnace shell.
Concrete operations are as follows:
1) according to the principal radii 5113mm of sphere section furnace shell, the design radial of special mold of colding pressing is determined, because of the half of mold
Footpath is more bigger than the principal radii of sphere section furnace shell, is 5200mm by the radial design of mold.
2) the sphere section furnace shell of air stove is required segmentation according to design, see Fig. 1, Fig. 2, every section of furnace shell is equally divided into 12
Block watt, obtains the monolithic vatu of furnace shell.
4) method using approximate expansion, obtains the theoretical size of first piece of furnace shell monolithic watt, sees Fig. 3.These data are compiled
Journey input numerical control cutting machine, cuts first piece of furnace shell, and finishes checkpoint on furnace shell plate uniformly, the theory of record each point
Data.First piece of furnace shell is directly placed in mold compacting, and the springback capacity of steel to be considered during compacting, with the tune of different-thickness
Whole pad adjusts the radius of curvature of furnace shell each point, in a free state, with model inspection when lune degree meets standard-required,
Take out first piece of furnace shell.
5) remeasure the coordinate figure of checkpoint on furnace shell plate, compare with gross data, unnecessary is estimated deformation-compensated surplus
Excision, obtains the furnace shell plate of first piece of standard, thus can determine that the actual blank size of this sphere section furnace shell.
See that the coordinate diagram that Fig. 5 is furnace shell checkpoint, the numerical value of its gross data, practical measurement data and compensation dosage can be shown in Table
1:
Table 1
6) by actual blanking data programming input numerical control cutting machine, residue furnace shell plate is once cut out.
7) residue furnace shell plate is directly placed into cold moudling in mold.In cold pressure procedure, the contact of employing face, linear contact lay are transitioned into
The mode of point cantact is suppressed.The pre-packing quality final for ensureing sphere section, the furnace shell of cold moudling is used in a free state
The radian model of 1.5m length is checking on weft direction, and model to meet the requirements of the standard with the gap of furnace shell.
Claims (1)
1. an air stove sphere section furnace shell once cuts and the method for cold moudling, it is characterised in that comprise the following steps:
1) according to the principal radii of sphere section furnace shell, determine the design radial of special mold of colding pressing, and make mold；
2) with special mold compacting monolithic furnace shell of colding pressing, actual blank size is determined；Method comprises the following steps:
A) by the sphere section segmentation as requested of air stove, point watt, sheet-metal unfolding obtains the theoretical size data of furnace shell,
The surrounding of first piece of furnace shell uniformly adds the deformation-compensated surplus estimated, by these data programming input numerical control cutting machine, cutting the
One block of furnace shell plate, and on furnace shell plate, finish checkpoint uniformly, the gross data of record each point；
B) first block of furnace shell plate is put in special mold of colding pressing and suppress, during compacting, consider the springback capacity of steel, with different thick
The pad that adjusts of degree adjusts the radius of curvature of furnace shell each point, in a free state, meets standard with model inspection through lune degree
During requirement, take out furnace shell plate；
C) remeasure the coordinate figure of checkpoint on furnace shell plate, compare with gross data, by unnecessary estimate deformation-compensated remaining
Cut-to-measure is removed, and obtains the furnace shell plate of first piece of standard, thus can determine that the actual blank size of this sphere section furnace shell；
3) by actual blanking data programming input numerical control cutting machine, residue furnace shell plate is once cut out；
4) residue furnace shell plate is directly placed into cold moudling in mold.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510040012.1A CN104561422B (en) | 2015-01-27 | 2015-01-27 | A kind of air stove sphere section furnace shell once cuts and the method for cold moudling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510040012.1A CN104561422B (en) | 2015-01-27 | 2015-01-27 | A kind of air stove sphere section furnace shell once cuts and the method for cold moudling |
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| CN104561422B true CN104561422B (en) | 2016-08-17 |
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| CN112372249B (en) * | 2020-11-13 | 2022-05-10 | 鞍钢建设集团有限公司 | Process method for one-time clean material cutting and hot press molding of double-curved-surface-section furnace shell of hot blast stove |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318279A (en) * | 2007-06-08 | 2008-12-10 | 鞍钢建设集团有限公司 | One-time material clearing hot press molding process for circular arc zone of furnace jacket of blast furnace hot blast stove |
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2015
- 2015-01-27 CN CN201510040012.1A patent/CN104561422B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318279A (en) * | 2007-06-08 | 2008-12-10 | 鞍钢建设集团有限公司 | One-time material clearing hot press molding process for circular arc zone of furnace jacket of blast furnace hot blast stove |
Non-Patent Citations (3)
| Title |
|---|
| "宝钢热风炉拱顶双曲板成形胎具设计与制造";李光民 等;《冶金设备》;19950331(第2期);第40页 * |
| "热风炉炉壳的成形工艺";宗伟奇;《造船技术》;19941231(第8期);第42-44页 * |
| "高炉炉壳圆弧带一次净料液压成型";杨志甲;《鞍钢技术》;19951231(第10期);第59-61页 * |
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