CN111197114B - Blast furnace cooling wall - Google Patents
Blast furnace cooling wall Download PDFInfo
- Publication number
- CN111197114B CN111197114B CN202010166913.6A CN202010166913A CN111197114B CN 111197114 B CN111197114 B CN 111197114B CN 202010166913 A CN202010166913 A CN 202010166913A CN 111197114 B CN111197114 B CN 111197114B
- Authority
- CN
- China
- Prior art keywords
- dovetail
- cooling wall
- wall body
- anchoring pieces
- steel fiber
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 238000004873 anchoring Methods 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000005266 casting Methods 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 239000011449 brick Substances 0.000 description 8
- 210000001015 abdomen Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a blast furnace cooling wall, which relates to the technical field of metallurgical equipment manufacture and comprises a cooling wall body, wherein dovetail grooves are arranged on the hot surface of the cooling wall body at intervals, anchoring parts are arranged in the dovetail grooves at intervals, the anchoring parts in two adjacent dovetail grooves are staggered, and a steel fiber pouring material layer which is integrated with the cooling wall body and the anchoring parts is poured on the hot surface of the cooling wall body. Compared with the prior art, the invention has simple casting construction process, and the casting is integrated to prevent accumulated errors, so that the phenomena of unstable, loose and falling-off combination of the steel fiber casting material layer and the cooling wall body can be avoided, the pouring and the installation of the cooling wall are facilitated, the slag hanging capacity of the steel fiber casting material layer is strong, and the stability of slag skin can be ensured.
Description
Technical Field
The invention relates to the technical field of metallurgical equipment manufacturing, in particular to a cooling wall for a section B1 of a blast furnace belly to a section R2 of the upper part of a furnace body.
Background
The blast furnace cooling wall is an important cooling part in the blast furnace, is arranged at the positions of a furnace body, a furnace waist, a furnace belly, a furnace hearth and the like of the blast furnace, is subjected to high temperature, is also subjected to abrasion of furnace burden, erosion of slag and flushing of gas flow, and has the comprehensive properties of good heat intensity, heat shock resistance, rapid cooling and rapid heating resistance and the like, and refractory bricks are generally embedded on the cooling wall. The prior blast furnace cooling wall comprises a cooling wall body and bricks embedded on the hot surface of the cooling wall body, dovetail grooves are arranged on the hot surface of the cooling wall body at intervals, and the bricks are provided with dovetails matched with the dovetail grooves. The blast furnace stave suffers from the following disadvantages in production: 1. the brick-inlaid and the cooling wall body cannot be integrally formed and constructed, the brick-inlaid seams are more, accumulated errors are easy to generate in the brick-inlaid seams, and the brick-inlaid masonry construction process is complex. 2. The requirements on stability in the process of transporting and installing the cooling wall are high, and the phenomena of insecurity, looseness and falling-off of the brick are easy to occur. 3. The slag hanging capability of the inlaid brick is poor, and the stability of slag skin is difficult to ensure.
Disclosure of Invention
The invention aims to solve the problems of providing a blast furnace cooling wall, which can solve the problems that the existing blast furnace cooling wall has more brick-inlaid seams, accumulated errors are easy to occur in the brick seams, and the brick-inlaid masonry construction process is complex; the brick is easy to be loose and loose, the slag-hanging capacity of the brick is poor, and the stability of slag skin is difficult to be ensured.
In order to solve the problems, the invention adopts the following technical scheme: the blast furnace cooling wall comprises a cooling wall body, dovetail grooves are arranged on the hot surface of the cooling wall body at intervals, anchoring pieces are arranged in the dovetail grooves at intervals, the anchoring pieces in two adjacent dovetail grooves are staggered, and a steel fiber casting material layer which is integrated with the cooling wall body and the anchoring pieces into a whole is cast on the hot surface of the cooling wall body.
In the above technical scheme of the blast furnace cooling wall, the more specific technical scheme may also be: the anchoring piece is provided with a dovetail bulge which is formed by bending a strip-shaped steel plate and matched with the dovetail groove, two sides of an opening of the dovetail bulge are respectively bent outwards to form two inclined plate parts which are oppositely arranged, an included angle between the two inclined plate parts is alpha, and two sides of the opening of the dovetail bulge are connected through supporting steel bars.
Further, the anchoring pieces arranged in the same dovetail groove are connected through a fixed steel bar, the fixed steel bar is connected to the bottom of the dovetail bulge, and the center line of the fixed steel bar is basically coincident with the center line of the dovetail groove.
Furthermore, three anchoring pieces are arranged in one dovetail groove, and two anchoring pieces are arranged in the adjacent dovetail groove to be alternately arranged, wherein the intervals between every two anchoring pieces are equal.
Further, an included angle α between the two inclined plate portions is 55 to 65 degrees.
Further, the thickness B of the steel fiber casting material layer is 120-180 mm.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the steel fiber casting material and the cooling wall body to be cast into a whole, utilizes the anchoring piece to prevent collapse before the steel fiber casting material and the cooling wall body are combined and formed, simultaneously ensures that the material is uniformly contracted to avoid forming large and concentrated cracks, increases the strength and the bonding stability of the steel fiber casting material, ensures that the steel fiber casting material and the cooling wall body form a compact and high-strength whole, has the function of resisting the thermal stress during the production in a furnace, and further ensures that the steel fiber casting material has the condition of self-flow forming. The pouring construction process is simple, the integral prevention of accumulated errors is realized, the phenomena of unstable, loose and falling-off of the combination of the steel fiber pouring material layer and the cooling wall body can be avoided, the pouring and the installation of the cooling wall are facilitated, the slag hanging capacity of the steel fiber pouring material layer is strong, and the stability of slag skin can be ensured.
2. The anchor piece is inlaid in the dovetail groove and has smaller bending strength, an included angle between two oppositely arranged inclined plate parts is alpha, an opening between the two inclined plate parts is under the gravity action of the steel fiber casting material, the anchor piece is favorable for stabilizing the pretightening force generated by the dovetail groove, and the supporting steel bar is connected to the two sides of the opening part of the dovetail bulge for double pretightening to prevent deformation. The structure is simple, the manufacturing cost is low, and the steel fiber casting material layer and the cooling wall body can be firmly combined.
3. The anchoring pieces arranged in the same dovetail groove are connected through a fixed steel bar, the fixed steel bar is connected to the bottom of the dovetail bulge, and the center line of the fixed steel bar is basically coincident with the center line of the dovetail groove; the anchoring piece is fixed in series through the fixed steel bars, so that the bonding strength of the steel fiber casting material layer and the cooling wall body is further increased.
4. Three anchoring pieces are arranged in one dovetail groove, and two anchoring pieces are arranged in the adjacent dovetail groove in an alternating manner, wherein the intervals between every two anchoring pieces are equal; and the anchoring parts are reasonably arranged, so that the steel fiber casting material and the cooling wall body form a compact and high-strength whole.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
FIG. 3 is a schematic diagram of the structure of an anchor in an embodiment of the present invention.
Detailed Description
The invention is further described in detail below with reference to the examples of the drawings:
example 1
The cooling wall of the blast furnace shown in fig. 1 and 2 comprises a cooling wall body 1, dovetail grooves are arranged on the hot surface of the cooling wall body 1 at intervals, anchoring pieces 3 are arranged in the dovetail grooves at intervals, the anchoring pieces 3 in two adjacent dovetail grooves are staggered, the anchoring pieces 3 arranged in the same dovetail groove are welded in series through fixed steel bars 4, a steel fiber casting material layer 2 integrated with the cooling wall body 1 and the anchoring pieces 3 is cast on the hot surface of the cooling wall body 1, and the thickness B of the steel fiber casting material layer 2 is 120mm. The arrangement of the anchoring pieces 3 is that three anchoring pieces 3 are arranged in one dovetail groove, and two anchoring pieces are arranged in the adjacent dovetail groove to be alternately arranged, and the interval between every two anchoring pieces 3 is equal.
The anchor member 3 shown in fig. 3 has a dovetail projection 3-1 formed by bending a strip-shaped steel plate and matching with the dovetail groove, two sides of the opening of the dovetail projection 3-1 are respectively bent outwards into two inclined plate parts 3-2 oppositely arranged, an included angle alpha between the two inclined plate parts 3-2 is 55 degrees, and two sides of the opening of the dovetail projection 3-1 are welded and connected through a supporting steel bar 3-3. The fixed steel bar 4 is welded at the bottom of the dovetail bulge 3-1, the center line of the fixed steel bar 4 is basically coincident with the center line of the dovetail groove, and the length of the fixed steel bar 4 is basically equal to the length of the dovetail groove. The support steel bars 3-3 and the fixing steel bars 4 of the present embodiment are round steel.
During manufacturing, the cooling wall body 1 from the section B1 of the blast furnace belly to the section R2 of the upper part of the furnace body is horizontally arranged on a special rack, the dovetail grooves are upward, the water cooling pipes are downward, and the dovetail grooves are cleaned. The strip-shaped steel plate is bent to form a dovetail bulge 3-1 and two inclined plate parts 3-2, and then the dovetail bulge 3-1 is placed into a dovetail groove to be attached and clamped with the dovetail groove. The support steel bar 3-3 is horizontally placed at the opening of the dovetail bulge 3-1 and fixed with the two sides of the dovetail bulge 3-1 by spot welding. The fixed steel bar 4 is connected with the bottom of the dovetail bulge 3-1 of the anchor 3 in the same dovetail groove in series by spot welding, and the cooling wall body 1 can not be welded during spot welding. After all the anchoring pieces 3 are installed, one anchoring piece 3 is randomly selected to be hung on a steel wire rope for lifting, so that the cooling wall body 1 is slightly moved, the cooling wall body cannot be lifted off the ground, and the fact that the pre-tightening of the cooling wall body is free of loosening and falling in the dovetail groove is ensured. Pouring the steel fiber castable to keep the external dimension of the steel fiber castable layer 2 parallel to the external dimension of the cooling wall body 1; the steel fiber castable is used up in a set time after being proportioned, and the remainder is not reused after being agglomerated.
According to the invention, the steel fiber castable and the cooling wall body 1 are cast into a whole, the anchoring piece 3 is used for preventing collapse before the steel fiber castable and the cooling wall body 1 are combined and formed, meanwhile, the material is uniformly contracted to avoid forming large and concentrated cracks, the strength and the bonding stability of the steel fiber castable are increased, the steel fiber castable and the cooling wall body 1 are ensured to form a compact and high-strength whole, the heat stress effect during production in a furnace is resisted, and the steel fiber castable is provided with the self-flowing forming condition. The pouring construction process is simple, the steel fiber pouring material layer 2 and the cooling wall body 1 can be prevented from being combined with each other in a loose and loose mode and falling off due to the fact that accumulated errors are prevented from being generated integrally, the pouring construction process is favorable for the transportation and installation of the cooling wall, the slag hanging capacity of the steel fiber pouring material layer 2 is high, and the stability of slag skin can be guaranteed.
Example 2
This embodiment differs from embodiment 1 in that: the thickness B of the steel fiber casting material layer 2 is 180mm, and the included angle alpha between the two inclined plate parts 3-2 is 65 degrees. The other technical features are the same as those of example 1.
Example 3
This embodiment differs from embodiment 1 in that: the thickness B of the steel fiber casting material layer 2 is 150mm, and the included angle alpha between the two inclined plate parts 3-2 is 60 degrees. The other technical features are the same as those of example 1.
Claims (2)
1. The utility model provides a blast furnace stave, is including stave body (1), the dovetail recess has been arranged at intervals on the hot face of stave body (1), its characterized in that: anchoring pieces (3) are arranged in the dovetail grooves at intervals, the anchoring pieces (3) in two adjacent dovetail grooves are staggered, and a steel fiber casting material layer (2) integrated with the cooling wall body (1) and the anchoring pieces (3) is cast on the hot surface of the cooling wall body (1); the anchoring piece (3) is provided with a dovetail bulge (3-1) which is formed by bending a strip-shaped steel plate and matched with the dovetail groove, two sides of an opening of the dovetail bulge (3-1) are respectively bent outwards to form two inclined plate parts (3-2) which are oppositely arranged, an included angle between the two inclined plate parts (3-2) is alpha, and two sides of the opening of the dovetail bulge (3-1) are connected through supporting steel bars (3-3); the anchoring pieces (3) arranged in the same dovetail groove are connected through fixed steel bars (4), the fixed steel bars (4) are connected to the bottoms of the dovetail bulges (3-1), the center lines of the fixed steel bars (4) are basically coincident with the center lines of the dovetail grooves, and the lengths of the fixed steel bars (4) are basically equal to the lengths of the dovetail grooves; the included angle alpha between the two sloping plate parts (3-2) is 55-65 degrees; the thickness B of the steel fiber casting material layer (2) is 120-180 mm.
2. The blast furnace stave of claim 1 wherein: the anchoring pieces (3) are arranged in a manner that three anchoring pieces (3) are arranged in one dovetail-shaped groove, two anchoring pieces are arranged in the adjacent dovetail-shaped groove to be alternately arranged, and the intervals between every two anchoring pieces (3) are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166913.6A CN111197114B (en) | 2020-03-11 | 2020-03-11 | Blast furnace cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166913.6A CN111197114B (en) | 2020-03-11 | 2020-03-11 | Blast furnace cooling wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111197114A CN111197114A (en) | 2020-05-26 |
| CN111197114B true CN111197114B (en) | 2024-02-06 |
Family
ID=70744971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010166913.6A Active CN111197114B (en) | 2020-03-11 | 2020-03-11 | Blast furnace cooling wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111197114B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214698U (en) * | 1987-10-23 | 1988-10-05 | 武汉钢铁公司 | Pottery and porcelain combined cooling wall |
| JP2002532673A (en) * | 1998-12-16 | 2002-10-02 | ポール ヴルス エス．エイ． | Cooling plate for steelmaking furnace or steelmaking furnace |
| CN102057058A (en) * | 2008-06-06 | 2011-05-11 | 保尔伍斯股份有限公司 | Cooling plate for a metallurgical furnace |
| CN102251066A (en) * | 2010-05-18 | 2011-11-23 | 北京联合荣大工程材料有限责任公司 | Cooling wall with pre-coated slag crust |
| KR101572390B1 (en) * | 2014-11-26 | 2015-11-26 | 현대제철 주식회사 | Protection device for blast furnace structure wall and method for manufacturing the same |
| CN107794324A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | High-wear-resistance blast furnace copper cooling wall and manufacturing method thereof |
| CN109971902A (en) * | 2019-04-15 | 2019-07-05 | 柳州钢铁股份有限公司 | Blast furnace cooling stave is poured permanent protective layer |
| CN211999793U (en) * | 2020-03-11 | 2020-11-24 | 广西柳州钢铁集团有限公司 | Blast furnace cooling wall |
-
2020
- 2020-03-11 CN CN202010166913.6A patent/CN111197114B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214698U (en) * | 1987-10-23 | 1988-10-05 | 武汉钢铁公司 | Pottery and porcelain combined cooling wall |
| JP2002532673A (en) * | 1998-12-16 | 2002-10-02 | ポール ヴルス エス．エイ． | Cooling plate for steelmaking furnace or steelmaking furnace |
| CN102057058A (en) * | 2008-06-06 | 2011-05-11 | 保尔伍斯股份有限公司 | Cooling plate for a metallurgical furnace |
| CN102251066A (en) * | 2010-05-18 | 2011-11-23 | 北京联合荣大工程材料有限责任公司 | Cooling wall with pre-coated slag crust |
| KR101572390B1 (en) * | 2014-11-26 | 2015-11-26 | 현대제철 주식회사 | Protection device for blast furnace structure wall and method for manufacturing the same |
| CN107794324A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | High-wear-resistance blast furnace copper cooling wall and manufacturing method thereof |
| CN109971902A (en) * | 2019-04-15 | 2019-07-05 | 柳州钢铁股份有限公司 | Blast furnace cooling stave is poured permanent protective layer |
| CN211999793U (en) * | 2020-03-11 | 2020-11-24 | 广西柳州钢铁集团有限公司 | Blast furnace cooling wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111197114A (en) | 2020-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202519275U (en) | Combined cooling wall | |
| CN100557166C (en) | A kind of ladle bottom construction method | |
| CN111197114B (en) | Blast furnace cooling wall | |
| CN211999793U (en) | Blast furnace cooling wall | |
| JP5808212B2 (en) | Heat resistant cover | |
| CN203586823U (en) | Refractory masonry structure for chute inclined surface | |
| CN216237128U (en) | Copper column reinforced cooling cast iron cooling wall | |
| CN203715655U (en) | Copper cooling wall with groove array structure | |
| CN108332563A (en) | Barricade and pellet circular cooler after pellet circular cooler | |
| CN201915109U (en) | Billet steel fixing structure of slag stewing pool | |
| CN108424989A (en) | A kind of blast furnace taphole region cooling structure | |
| CN204255081U (en) | A kind of EAF bottom ramming mass Rotating fields | |
| CN207629194U (en) | A kind of anti-peeling durable type CAS refinings cover lower cover | |
| CN211112058U (en) | Long-life converter liquid steel slag retaining wall | |
| CN105910442A (en) | Refractory brick hanging device and furnace top brickwork hanging method | |
| CN105033235A (en) | Smelting steel ladle | |
| CN203586817U (en) | Reinforced refractory material lining anchoring nail | |
| CN208104456U (en) | Long-life furnace mouth capable of being replaced quickly | |
| CN207570343U (en) | It is molten to divide stove | |
| CN208254242U (en) | Barricade and pellet circular cooler after pellet circular cooler | |
| CN217275501U (en) | Composite anti-corrosion lining structure for rotary kiln | |
| CN205933868U (en) | Novel sediment iron runner revetment and apron are supporting | |
| CN114657298B (en) | Blast furnace body protecting wall | |
| CN203083368U (en) | Novel furnace door fragmentation-proof weatherstrip brick | |
| CN203586799U (en) | Masonry structure for side wall base of chain grate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |