CN201065416Y - Bricklaying structure for steelmaking furnace ball bottom central region - Google Patents
Bricklaying structure for steelmaking furnace ball bottom central region Download PDFInfo
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- CN201065416Y CN201065416Y CNU2007200852755U CN200720085275U CN201065416Y CN 201065416 Y CN201065416 Y CN 201065416Y CN U2007200852755 U CNU2007200852755 U CN U2007200852755U CN 200720085275 U CN200720085275 U CN 200720085275U CN 201065416 Y CN201065416 Y CN 201065416Y
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Abstract
The utility model relates to a steelmaking furnace bottom structure, in particular to a bricklaying structure for the spherical bottom central area of a steelmaking furnace, which comprises a spherical furnace bottom. The utility model is characterized in that a frontal concave terrace is formed with quadrate bricks at the center of the furnace bottom; a concave frustum is surrounded with circle bricks around the frontal concave terrace, and circular bricklaying rings sharing identical center of circle with the spherical bottom is closely connected outside the concave frustum. In the utility model, the original homocentric circular ring brick, namely, the spherical bottom brick with smaller than 500 mm radius not meeting the laying technology standard (the circular seam does not exceed 2 mm) is changed to have straight combined bricklaying structure, thus the contact way among the bricks at the central part is planar contact, therefore triangular circular seams can be eliminated, and the technical requirement that the circular seam does not exceed 2 mm is completely guaranteed. The utility model reduces the construction difficulty and the construction intensity, and prolongs the service life of the steelmaking furnace.
Description
Technical field
The utility model relates to a kind of steel melting furnace bottom structure, central area brick construction at the bottom of specifically a kind of steel melting furnace ball.
Background technology
(seeing accompanying drawing 1) at the bottom of the ring block method ball generally adopted in China's steelworks oxygen steelmaking converter at present.The advantage that this ring is built at the bottom of the method ball is a lot: the domes stress distribution is reasonable, builds conveniently long service life by laying bricks or stones.But central horizontal radius 500mm lays bricks with interior donut at the bottom of ball unreasonable part is arranged also partly.(central horizontal radius D=178mm) calculates 459mm by R=B * D/ (B-C) for B=91.5mm, C=56mm, and every ring needs 32 and is built into (seeing the ring of 3 in the accompanying drawing 1 brick) as wedge brick at the bottom of the typical ball.The defective of this brick ring is:
1. the puzzle joint between the brick ring (being called circumferential weld) excessive (seeing the A in the accompanying drawing 2), calculate circumferential weld and reach 4.565mm by A=B (B-C)/4D, surpass GB50211-2004 " Code for construction and acceptance of brick works for industrial furnaces " converter steelmaking masonry brickwork joint thickness 2mm standard code.Make in refractory materials factory or at the scene of building by laying bricks or stones, must grind by the ring block-by-block, not only prolong and build furnaceman's phase, the technical requirements that does not still reach the 2mm circumferential weld with hand grinding tool.
2. circumferential weld quantity reaches 186 (seeing the ring of 1 ~ 4 in the accompanying drawing 1 brick).Circumferential weld reaches 21m.
3. the about 500mm of central horizontal radius is many with the quantity and the shape of interior brick at the bottom of the ball, and each stove is 94 4 kinds of brick shapes nearly.And 4 kinds of brick shape difference are very little, can not use with, and naked eyes are difficult to distinguish, and not only influence assembling speed but also influence the speed of building by laying bricks or stones.
These defectives are more or less in use infiltrated molten steel, shorten converter work-ing life, or prolong and build furnaceman's phase.This is to influence loopful to build the key technical problem of further promoting and prolong its work-ing life at the bottom of the method ball.
For reaching the lay bricks technical requirements of 2mm circumferential weld of central area at the bottom of the ball, also there is the cross of employing to add (seeing accompanying drawing 3) at the bottom of the ring block method ball, the about 500mm of promptly horizontal radius is with interior employing cross block method, and the concentric(al) circles periphery begins to encircle the block method.But cross is built between method and the ring block method brick ring and must be ground by block-by-block equally.Therefore inventing a kind of novel steel melting furnace bottom construction is highly profitable.
Summary of the invention
Goal of the invention of the present utility model is exactly the defective at existing steel melting furnace bottom construction, provides central area brick construction at the bottom of a kind of steel melting furnace ball, to remedy the deficiency of currently available products.
The technical solution of the utility model is achieved in that it comprises a spherical furnace bottom, it is characterized in that: furnace bottom central authorities form a just recessed halfpace by square block, enclose a spill frustum by radial brick around the just recessed halfpace, the spill frustum is right after outward and the annular of concentric at the bottom of the ball brick ring of laying bricks again.
Described furnace bottom central authorities form a just recessed halfpace by nine square blocks, enclose a spill frustum by 12 blocks of radial bricks around just recessed halfpace; Described square block is up-small and down-big trapezoid body; Described radial brick has two kinds, and wherein a kind of front view of radial brick is trapezoidal, and left view and right view are trapezoidal and symmetrical, and top and bottom perspective views is up-small and down-big shape antarafacial, and rear view is a trapezoidal faces; The front view of another kind of radial brick is trapezoidal, and left view and right view are trapezoidal asymmetric, and top and bottom perspective views is up-small and down-big sector.
The utility model will not reach the former donut of masonry technology standard (circumferential weld is no more than 2mm) and lays bricks, is that radius 500mm lays bricks at the bottom of with interior ball and changes straight shape combination brick construction into, contact is plane contact between the middle body brick like this, therefore can eliminate the trilateral circumferential weld.The complete guaranteed technical requirements that is no more than the 2mm puzzle joint that reaches.The middle body outer ring constitutes circular arc, and circular arc is right after outward and the brick ring of laying bricks of concentric annular at the bottom of the ball again.Because the increase of radius, central area can reach the requirement of GB50211-2004 " Code for construction and acceptance of brick works for industrial furnaces " technological standard by the annular brick ring circumferential weld of ring outward.The utility model has reduced difficulty of construction and construction intensity, has prolonged the work-ing life of steel melting furnace.
Description of drawings
Ring block method structural representation in Fig. 1 prior art
Fig. 2 circumferential weld theoretic throat synoptic diagram
Cross adds ring block method structural representation in Fig. 3 prior art
Fig. 4 structural representation of the present utility model
The brick shape figure of Fig. 5 the utility model radial brick
The brick shape figure of the another kind of radial brick of Fig. 6 the utility model
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 4, the utility model comprises a spherical furnace bottom, furnace bottom central authorities form a just recessed halfpace by nine square blocks 1, enclose a spill frustum by 12 blocks of radial bricks 2,3 and 4 around the just recessed halfpace, and the spill frustum is right after outward and the annular of concentric at the bottom of the ball brick ring of laying bricks again.
Described square block 1 is up-small and down-big trapezoid body; Described radial brick has two kinds, and wherein a kind of front view of radial brick 2 is trapezoidal, and left view and right view are trapezoidal and symmetrical, and top and bottom perspective views is up-small and down-big shape antarafacial, and rear view is a trapezoidal faces; The front view of another kind of radial brick 3 is trapezoidal, and left view and right view are trapezoidal asymmetric, and top and bottom perspective views is up-small and down-big sector.Radial brick 4 and radial brick 3 mirror image symmetries.
Claims (3)
1. central area brick construction at the bottom of the steel melting furnace ball, it comprises a spherical furnace bottom, it is characterized in that: furnace bottom central authorities form a just recessed halfpace by square block, enclose a spill frustum by radial brick around the just recessed halfpace, and the spill frustum is right after outward and the annular of concentric at the bottom of the ball brick ring of laying bricks again.
2. central area brick construction at the bottom of the steel melting furnace ball according to claim 1 is characterized in that: described furnace bottom central authorities form a just recessed halfpace by nine square blocks, enclose a spill frustum by 12 blocks of radial bricks around just recessed halfpace.
3. central area brick construction at the bottom of the steel melting furnace ball according to claim 1 and 2 is characterized in that: described square block is up-small and down-big trapezoid body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852755U CN201065416Y (en) | 2007-06-15 | 2007-06-15 | Bricklaying structure for steelmaking furnace ball bottom central region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852755U CN201065416Y (en) | 2007-06-15 | 2007-06-15 | Bricklaying structure for steelmaking furnace ball bottom central region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065416Y true CN201065416Y (en) | 2008-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200852755U Expired - Fee Related CN201065416Y (en) | 2007-06-15 | 2007-06-15 | Bricklaying structure for steelmaking furnace ball bottom central region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065416Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684985B (en) * | 2008-09-24 | 2011-08-17 | 中冶天工建设有限公司 | Masonry method of bottom heat preservation and insulation bricks of annular heating furnace |
| CN108624738A (en) * | 2018-07-09 | 2018-10-09 | 鞍山市和丰耐火材料有限公司 | A kind of quincuncial pile formula converter bottom structure |
-
2007
- 2007-06-15 CN CNU2007200852755U patent/CN201065416Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684985B (en) * | 2008-09-24 | 2011-08-17 | 中冶天工建设有限公司 | Masonry method of bottom heat preservation and insulation bricks of annular heating furnace |
| CN108624738A (en) * | 2018-07-09 | 2018-10-09 | 鞍山市和丰耐火材料有限公司 | A kind of quincuncial pile formula converter bottom structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan iron and Steel Group Design & Research Institute Co Ltd Assignor: Wuhan Iron & Steel (Group) Corp. Contract record no.: 2011420000237 Denomination of utility model: Bricklaying structure for steelmaking furnace ball bottom central region Granted publication date: 20080528 License type: Exclusive License Record date: 20110901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20140615 |
|
| EXPY | Termination of patent right or utility model |