CN110714105B - Liquid steel slag retaining wall of converter with long service life - Google Patents
Liquid steel slag retaining wall of converter with long service life Download PDFInfo
- Publication number
- CN110714105B CN110714105B CN201911039119.9A CN201911039119A CN110714105B CN 110714105 B CN110714105 B CN 110714105B CN 201911039119 A CN201911039119 A CN 201911039119A CN 110714105 B CN110714105 B CN 110714105B
- Authority
- CN
- China
- Prior art keywords
- steel
- wall body
- rail
- reinforced concrete
- steel plate
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 118
- 239000010959 steel Substances 0.000 title claims abstract description 118
- 239000002893 slag Substances 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 title claims abstract description 13
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 36
- 229910001208 Crucible steel Inorganic materials 0.000 claims abstract description 31
- 239000004567 concrete Substances 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 11
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000006703 hydration reaction Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Revetment (AREA)
Abstract
A long-life liquid steel slag retaining wall of a converter belongs to the technical field of converter steel slag treatment facilities and is used for placing converter steel slag. The technical proposal is as follows: the wall body of the reinforced concrete wall body surrounds the hot slag splashing pool, a plurality of steel plate embedded parts are poured on the wall body surface of one side of the reinforced concrete wall body facing the hot slag splashing pool, a plurality of steel rails are sequentially and vertically arranged along the wall body of the reinforced concrete wall body around the hot slag splashing pool, the bottom surfaces of the steel rails are respectively welded with the steel plate embedded parts on the wall body surface of the reinforced concrete wall body, and a plurality of cast steel plates are respectively connected between the adjacent steel rails. The invention has reasonable structure, has the comprehensive properties of water resistance, high temperature resistance and impact resistance, can withstand chemical attack generated by steel slag, steam-water mixture and water and steel slag hydration reaction substances at about 1000 ℃ for a long time, can bear the effect of a loader on wall collision, collision and collision to a certain extent, can realize maintenance-free, has the service life of not less than 15 years, and improves the economic benefit of enterprises.
Description
Technical Field
The invention relates to a steel slag retaining wall of a hot slag splashing pool for placing converter steel slag, belonging to the technical field of converter steel slag treatment facilities.
Background
The steel slag hot splashing technology is to spray water from steel slag with the temperature of more than 200 ℃ and less than 1300 ℃, generate supersaturated steam by utilizing waste heat, carry out hydration reaction with f-CaO and f-MgO, carry out volume expansion and pulverization, carry out hydration volume expansion of CaO by 97.8%, carry out hydration volume expansion of MgO by 148%, and carry out steel slag pulverization to naturally separate steel and slag.
The converter slag is transported to a slag hot splashing treatment line by a cross car, a slag tank is lifted by a bridge crane to tilt the hot molten slag to a hot splashing slag tank, a small amount of water is sprayed for cooling after each tilting of the slag tank, the slag is loosened properly, after the hot splashing tank is filled with the slag, water pipes at two sides of each hot splashing tank are opened for hot splashing, and hot splashing water quantity and time are carried out according to the requirements of regulations. After the hot splashing of the steel slag is completed, the pulverized steel slag in the tank is grabbed and transported to a steel slag transport dump truck by a loader, and pulled to a screening, crushing and magnetic separation production line.
And three sides of the hot slag splashing pool are provided with retaining walls which are built by C30 impervious heat-resistant concrete. In the production and use, the concrete retaining wall is easy to damage because the concrete retaining wall is subjected to the action of high-temperature liquid steel slag and gas-water for a long time. In the production and use, firstly, cracks of the concrete retaining wall can appear, the reinforcement protection layer of the slow concrete retaining wall falls off, the retaining wall can be gradually thinned, the strength is reduced, and the retaining wall needs to be removed for repair and reconstruction after 3-5 years.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the long-life converter liquid steel slag retaining wall which can withstand high temperature steel slag and chemical attack for a long time, can bear the collision, collision and impact actions of a loader on a wall body in operation, has the dual characteristics of impermeability, waterproofing and heat resistance and high strength, and can realize long service life and maintenance free.
The technical scheme for solving the technical problems is as follows:
the utility model provides a long-life converter liquid steel slag barricade, it includes concrete structure main part and steel protective structure, concrete structure main part is upright reinforced concrete wall body, reinforced concrete wall body's wall body encircles hot slag splashing pond, reinforced concrete wall body's lower extreme has horizontal base, horizontal base is connected with hot slag splashing pond's bottom of the pool, steel protective structure includes steel sheet built-in fitting, the rail, the cast steel board, the polylith steel sheet built-in fitting is pour in reinforced concrete wall body's one side wall body wall surface towards hot slag splashing pond, many rails are along reinforced concrete wall body ring hot slag splashing pond order vertical arrangement, the bottom surface of many rails respectively with reinforced concrete wall body's wall body surface's steel sheet built-in fitting welded connection, many cast steel boards connect respectively between adjacent rail.
According to the long-life converter liquid steel slag retaining wall, the plurality of steel plate embedded parts are discontinuously arranged on the wall surface of the reinforced concrete wall in the longitudinal and transverse directions, the transverse spacing of the steel plate embedded parts is not more than 1 meter, and the longitudinal spacing of the steel plate embedded parts is not more than 0.6 meter.
Above-mentioned long-life converter liquid steel slag barricade adopts the clamp plate welding between steel sheet built-in fitting and the rail, the lower part and the steel sheet built-in fitting welded connection of clamp plate, the upper portion of clamp plate presses on rail lower part rail seat surface, clamp plate and rail welded connection.
Above-mentioned long-life converter liquid steel slag barricade, the below welding locating piece of rail upper portion rail face, the locating piece is long and intermittent weld for logical length and the interval in rail length direction along the rail, and the locating piece is located the both sides of rail body respectively, and the rail body both sides are perpendicular welded with the side of two locating pieces respectively, and the upper surface of locating piece is parallel and have the clearance with rail face lower surface, and the clearance of locating piece and rail face below matches with the thickness phase-match of cast steel plate, and cast steel plate inserts in the clearance of locating piece and rail face lower surface.
The long-life converter liquid steel slag retaining wall is characterized in that the cast steel plate is a ductile cast iron steel plate, the width of the cast steel plate is matched with the distance between two adjacent steel rails of the wall body of the reinforced concrete wall body, the length of the cast steel plate is matched with the height of the wall body of the reinforced concrete wall body, and the thickness of the cast steel plate is 20-30mm.
The beneficial effects of the invention are as follows:
the liquid steel slag retaining wall body of the converter adopts a concrete steel composite structure, on one hand, the concrete structure body is an upright reinforced concrete wall body, and the steel retaining wall body has high strength, impermeability and waterproof performance, and on the other hand, the steel protective structure consists of steel rails and ductile iron steel plates, and has the performances of high temperature resistance, collision resistance and impact resistance, and the steel slag retaining wall has the advantages of reliable overall performance, long service life and no maintenance.
The invention has reasonable structure, has the comprehensive properties of water resistance, high temperature resistance and impact resistance, can withstand chemical attack generated by steel slag, steam-water mixture and water and steel slag hydration reaction substances at about 1000 ℃ for a long time, can bear the effect of a loader on knocking, bumping and bumping the wall body to a certain extent, can realize the one-time investment of the concrete steel composite slag blocking wall to achieve maintenance-free, long service life, and the service life is not lower than 15 years, and improves the economic benefit of enterprises.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a partial view of FIG. 1;
fig. 3 is a schematic view of the use state of the present invention.
The figures are labeled as follows: the reinforced concrete wall body 1, the horizontal base 2, the steel plate embedded part 3, the steel rail 4, the cast steel plate 5, the pressing plate 6, the positioning block 7, the hot slag splashing pool 8, the pool bottom 9 and the steel slag 10.
Detailed Description
The invention comprises a concrete structure main body and a steel protection structure, wherein the concrete structure main body consists of a reinforced concrete wall body 1 and a horizontal base 2, and the steel protection structure consists of a steel plate embedded part 3, a steel rail 4, a cast steel plate 5, a pressing plate 6 and a positioning block 7.
In the figure, a reinforced concrete wall body 1 is vertical, the wall body of the reinforced concrete wall body 1 surrounds a hot slag splashing pool 8, a horizontal base 2 is arranged at the lower end of the reinforced concrete wall body 1, and the horizontal base 2 is connected with a pool bottom 9 of the hot slag splashing pool 8.
In the figure, a plurality of steel plate embedded parts 3 of the steel protection structure are poured on the wall surface of one side of the reinforced concrete wall body 1 facing the hot slag splashing pool 8, the plurality of steel plate embedded parts 3 are discontinuously arranged in the longitudinal and transverse directions of the wall surface of the reinforced concrete wall body 1, the transverse spacing of the steel plate embedded parts 3 is not more than 1 meter, and the longitudinal spacing of the steel plate embedded parts is not more than 0.6 meter.
The plurality of rails 4 are shown arranged vertically in sequence along the wall of the reinforced concrete wall 1 around the hot slag bath 8. The section of the steel rail 4 is I-shaped, the upper part of the I shape is a rail surface, the middle part is a rail body, and the lower part is a rail seat. The steel rails 4 are welded and connected with the steel plate embedded parts 3 on the wall surface of the reinforced concrete wall 1 by adopting the pressing plates 6. The lower part of the pressing plate 6 is welded with the steel plate embedded part 3, the upper part of the pressing plate 6 is pressed on the surface of the rail seat at the lower part of the steel rail 4, and the pressing plate 6 is welded with the rail seat of the steel rail 4. The steel rail 4 is selected from the hoisting steel rail with the range of QU70-QU120
The connection of the cast steel plate 5 and the steel rail 4 is shown in a plugging manner. The positioning block 7 is welded below the rail surface at the upper part of the steel rail 4, the positioning block 7 is welded along the length direction of the steel rail 4, and the positioning block 7 is welded in a full length and intermittent manner along the length direction of the steel rail 4. Since the cast steel plates 5 are connected to both sides of the rail 4, the positioning blocks 7 are welded to both sides of the rail 4. The positioning blocks 7 are respectively positioned at two sides of the rail body of the steel rail 4, and the two sides of the rail body of the steel rail 4 are respectively and vertically welded with the side surfaces of the two positioning blocks 7. In order to place the cast steel plate 5 between the positioning block 7 and the rail surface of the steel rail 4, the upper surface of the positioning block 7 is parallel to the lower surface of the rail surface of the steel rail 4 and is provided with a gap, the gap between the positioning block 7 and the lower surface of the rail 4 is matched with the thickness of the cast steel plate 5, the cast steel plate 5 is inserted into the gap between the positioning block 7 and the lower surface of the rail surface of the steel rail 4, and a plurality of cast steel plates 5 are respectively connected between the adjacent steel rails 4. The advantage of the plug-in connection is that after long-term corrosion and impact damage to the cast steel plate 5, it can be easily removed from between the rails 4 and replaced with a new cast steel plate 5.
The cast steel plate 5 is shown as a spheroidal graphite cast iron steel plate, the width of the cast steel plate 5 is matched with the distance between two adjacent steel rails 4 of the wall body of the reinforced concrete wall body 1, the length of the cast steel plate 5 is matched with the height of the wall body of the reinforced concrete wall body 1, and the thickness of the cast steel plate 5 is 20-30mm.
One embodiment of the invention is as follows:
the reinforced concrete wall body 1 adopts C30 impervious concrete, the height of the reinforced concrete wall body 1 is 6m, the thickness of the lower end is 0.8m, and the thickness of the upper end is 0.4m;
the width of the horizontal base 2 is 4.5m, and the height is 0.7m;
the length of the steel plate embedded part 3 is 600mm, the width is 300mm, and the thickness is 20mm;
the steel rail 4 is a U71Mn steel rail;
the length of the pressing plate 6 is 150mm, the width is 40mm, and the thickness is 20mm;
the cast steel plate 5 is a ductile cast iron steel plate, has the width of 1000mm and the thickness of 30mm, and has the length which is set along the height of the wall body;
the positioning block 7 has a length of 600mm, a width of 30mm and a thickness of 20mm.
Claims (2)
1. The utility model provides a long-life converter liquid steel slag barricade which characterized in that: the concrete structure comprises a concrete structure main body and a steel protection structure, wherein the concrete structure main body is an upright reinforced concrete wall body (1), the wall body of the reinforced concrete wall body (1) surrounds a hot slag splashing pool (8), a horizontal base (2) is arranged at the lower end of the reinforced concrete wall body (1), the horizontal base (2) is connected with a pool bottom (9) of the hot slag splashing pool (8), the steel protection structure comprises steel plate embedded parts (3), steel rails (4) and cast steel plates (5), the steel plate embedded parts (3) are poured on the wall surface of one side of the reinforced concrete wall body (1) facing the hot slag splashing pool (8), the steel rails (4) are vertically arranged in sequence along the wall body of the reinforced concrete wall body (1), the bottom surfaces of the steel rails (4) are respectively welded with the steel plate embedded parts (3) on the wall surface of the reinforced concrete wall body (1), and the steel plates (5) are respectively connected between the adjacent steel rails (4);
the steel plate embedded parts (3) are discontinuously arranged on the wall surface of the reinforced concrete wall (1) in the longitudinal and transverse directions, the transverse distance between the adjacent steel plate embedded parts (3) is not more than 1 meter, and the longitudinal distance is not more than 0.6 meter;
the method comprises the steps that a positioning block (7) is welded below a rail surface at the upper part of a steel rail (4), the positioning block (7) is welded along the length direction of the steel rail (4), the positioning block (7) is welded in a continuous and intermittent mode in the length direction of the steel rail (4), the positioning blocks (7) are respectively positioned at two sides of a rail body of the steel rail (4), two sides of the rail body of the steel rail (4) are respectively welded vertically with the side surfaces of the two positioning blocks (7), the upper surface of the positioning block (7) is parallel to the lower surface of the rail surface of the steel rail (4), a gap is reserved between the positioning block (7) and the lower surface of the rail surface of the steel rail (4), the gap between the positioning block (7) and the lower surface of the rail surface of the steel rail (4) is matched with the thickness of a cast steel plate (5), and a plurality of cast steel plates (5) are respectively connected between the adjacent steel rails (4);
the cast steel plate (5) is a ductile cast iron steel plate, the width of the cast steel plate (5) is matched with the distance between two adjacent steel rails (4) of the wall body of the reinforced concrete wall body (1), the length of the cast steel plate (5) is matched with the height of the wall body of the reinforced concrete wall body (1), and the thickness of the cast steel plate (5) is 20-30mm.
2. The long life liquid steel slag retaining wall of a converter of claim 1, wherein: the steel plate embedded part (3) is welded with the steel rail (4) by adopting a pressing plate (6), the lower part of the pressing plate (6) is welded with the steel plate embedded part (3), the upper part of the pressing plate (6) is pressed on the surface of the rail seat at the lower part of the steel rail (4), and the pressing plate (6) is welded with the steel rail (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911039119.9A CN110714105B (en) | 2019-10-29 | 2019-10-29 | Liquid steel slag retaining wall of converter with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911039119.9A CN110714105B (en) | 2019-10-29 | 2019-10-29 | Liquid steel slag retaining wall of converter with long service life |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110714105A CN110714105A (en) | 2020-01-21 |
| CN110714105B true CN110714105B (en) | 2024-03-01 |
Family
ID=69213439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911039119.9A Active CN110714105B (en) | 2019-10-29 | 2019-10-29 | Liquid steel slag retaining wall of converter with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110714105B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786604A (en) * | 2022-11-28 | 2023-03-14 | 钢城集团凉山瑞海实业有限公司 | Long-life protection method for slag-turning line counterfort retaining wall |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201321463Y (en) * | 2008-12-12 | 2009-10-07 | 上海梅山钢铁股份有限公司 | High-temperature steel slag treating pond |
| CN201785405U (en) * | 2010-09-03 | 2011-04-06 | 鞍钢集团工程技术有限公司 | Steel slag hot-integrating pool |
| CN202107709U (en) * | 2011-04-29 | 2012-01-11 | 四川省达州钢铁集团有限责任公司 | Hot splashing slag box system |
| CN206052060U (en) * | 2016-08-30 | 2017-03-29 | 中冶南方工程技术有限公司 | The heat-insulated hot splashing slag railway carriage or compartment of overhead type |
| KR101774887B1 (en) * | 2016-10-06 | 2017-09-05 | 유한회사 강남이앤씨 | Cutoff wall structure of continuous wall type with variable steel plate, and construction method of cutoff wall of temporary facility using the same |
| CN211112058U (en) * | 2019-10-29 | 2020-07-28 | 宣化钢铁集团有限责任公司 | Long-life converter liquid steel slag retaining wall |
-
2019
- 2019-10-29 CN CN201911039119.9A patent/CN110714105B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201321463Y (en) * | 2008-12-12 | 2009-10-07 | 上海梅山钢铁股份有限公司 | High-temperature steel slag treating pond |
| CN201785405U (en) * | 2010-09-03 | 2011-04-06 | 鞍钢集团工程技术有限公司 | Steel slag hot-integrating pool |
| CN202107709U (en) * | 2011-04-29 | 2012-01-11 | 四川省达州钢铁集团有限责任公司 | Hot splashing slag box system |
| CN206052060U (en) * | 2016-08-30 | 2017-03-29 | 中冶南方工程技术有限公司 | The heat-insulated hot splashing slag railway carriage or compartment of overhead type |
| KR101774887B1 (en) * | 2016-10-06 | 2017-09-05 | 유한회사 강남이앤씨 | Cutoff wall structure of continuous wall type with variable steel plate, and construction method of cutoff wall of temporary facility using the same |
| CN211112058U (en) * | 2019-10-29 | 2020-07-28 | 宣化钢铁集团有限责任公司 | Long-life converter liquid steel slag retaining wall |
Non-Patent Citations (2)
| Title |
|---|
| 宁钢炼钢热泼渣箱改造加固方案优化及实施;杨伦光;;浙江冶金(04);全文 * |
| 浅谈热焖池设计与施工;李献军;王晨;李勇;;四川建材(05);第159-160页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110714105A (en) | 2020-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201648409U (en) | Tank for disintegrating steel-making high-temperature furnace slag | |
| CN101412109B (en) | Building and laying method capable of extending service lifetime of RH ladle working lining | |
| CN110714105B (en) | Liquid steel slag retaining wall of converter with long service life | |
| CN101698892B (en) | Hot stuffy processing device for steel slag | |
| CN211112058U (en) | Long-life converter liquid steel slag retaining wall | |
| CN101509050B (en) | Method for producing and mending slag separator | |
| CN104759611A (en) | Steel ladle composite working lining and repairing method for slag line position thereof | |
| CN109457073A (en) | A kind of big volume blast furnace assembles passage method offline | |
| CN212533043U (en) | Device for thermally braising steel slag | |
| CN214814757U (en) | High-stability composite steel ladle edge structure | |
| CN215162869U (en) | Multilayer composite structure iron runner prefabricated part | |
| CN115386669A (en) | Method for establishing triple-hearth structure of blast furnace | |
| CN101612663A (en) | A kind of slide plate of off-line baking continuous casting ladle reaches mouth of a river replacing method down | |
| CN112900162A (en) | Converter furnace lower track foundation structure and construction method | |
| CN204545398U (en) | A kind of ladle compound working lining | |
| CN201648431U (en) | Novel side charging iron chute with slag discharge tank | |
| CN218517709U (en) | Slag erosion resistant composite tundish slag retaining wall | |
| CN202808559U (en) | Novel bottom structure for tank furnace | |
| CN102061344A (en) | Method for installing and fixing large lining plate | |
| CN215104293U (en) | Converter stove lower track foundation structure | |
| CN203625397U (en) | Spliced guard board of braising tank | |
| CN220812495U (en) | Modularized water-cooled beam | |
| CN216976230U (en) | Cracking repairing device for straight ascending pipe of coke oven | |
| CN215237808U (en) | Inside strenghthened type underflow slag weir | |
| CN206747557U (en) | A kind of water cooling slide applied to pig machine |
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 |