CN220739460U - Anti-drop ladle bottom capable of being repaired rapidly - Google Patents
Anti-drop ladle bottom capable of being repaired rapidly Download PDFInfo
- Publication number
- CN220739460U CN220739460U CN202322075780.3U CN202322075780U CN220739460U CN 220739460 U CN220739460 U CN 220739460U CN 202322075780 U CN202322075780 U CN 202322075780U CN 220739460 U CN220739460 U CN 220739460U
- Authority
- CN
- China
- Prior art keywords
- silicon carbide
- impact plate
- ladle
- aluminum silicon
- brick layer
- 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
- 239000011449 brick Substances 0.000 claims abstract description 113
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 106
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 100
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 100
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 48
- 229910052742 iron Inorganic materials 0.000 abstract description 24
- 230000008439 repair process Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model belongs to the technical field of quick repair of ladle bottoms, and discloses an anti-falling ladle bottom capable of being quickly repaired, wherein a prefabricated impact plate is arranged at the center of the bottom of a ladle, the prefabricated impact plate is a square body and comprises an impact plate body and an extension platform, the impact plate body is square, and the extension platform extends to the outer side of the impact plate body along the four sides of the bottom of the impact plate body; the first aluminum silicon carbide carbon brick layer is built in the outside position of extension platform, and the second aluminum silicon carbide carbon brick layer is built in the position around the impact plate body. The utility model has the advantages that: the integrity of the prefabricated impact plate, the first aluminum silicon carbide carbon brick layer and the second aluminum silicon carbide carbon brick layer is improved, molten iron or molten steel is not easy to adhere, the prefabricated impact plate is easy to repair and convenient to assemble, and the prefabricated impact plate can be replaced quickly; the falling off of the aluminum silicon carbide carbon brick at the bottom of the ladle and the prefabricated impact plate is effectively prevented.
Description
Technical Field
The utility model belongs to the technical field of quick repair of ladle bottoms, and particularly relates to an anti-drop quick-repair ladle bottom.
Background
The ladle is a container for transferring molten iron, the turnover speed is high, and the average daily turnover is 3-5 times. The temperature of the cast molten iron is generally 1350-1450 ℃. When molten iron is contained, the ladle lining is impacted by the high-temperature molten iron to generate scour abrasion and strong thermal shock to generate great thermal stress; is chemically eroded by molten iron and slag during molten iron charging; when pouring molten iron, the molten iron is washed out; after the ladle is emptied, the temperature drops sharply and the ladle lining is quenched. In such a repeated process, the packing is repeatedly subjected to rapid cooling and rapid heating and erosion of slag iron and flushing of molten iron. Therefore, the ladle should be made of refractory materials with good thermal shock resistance, scouring resistance and oxidation resistance.
The current iron and steel smelting industry requires high efficiency and low energy consumption, and newly-built project smelting equipment tends to be large-scale and intelligent. The ladle needs to be stopped under the tapping swing groove of the blast furnace iron runner to receive molten iron in the use process, and the current large-scale ladle bottom distance tapping swing groove has larger fall due to the requirements of the height of the current large-scale blast furnace iron runner platform, the ladle cladding self height, the transportation vehicle frame height and the clearance height under the platform. Particularly, when the large-sized ladle is used for receiving molten iron, the gravity and thermal stress impact of the molten iron on the ladle bottom brick are huge, the brick lining damage rate is high, the frequent offline is needed for digging and repairing, the molten iron turnover efficiency between iron making and steel making is seriously restricted, and meanwhile, the frequent offline is used for cold repairing, the damage of thermal expansion and cold contraction of the ladle lining refractory material is aggravated, and the service life of the ladle is reduced. Meanwhile, the ladle needs to be frequently poured in the use process, the ladle bottom is positioned at the position of the suspended top, and the refractory lining body is easy to fall off. The inventor develops a ladle bottom which is anti-drop and can be quickly repaired based on the defects in the prior art, and can well solve the problems in the prior art.
Disclosure of Invention
The utility model aims to solve the technical problems and provides the anti-drop ladle bottom capable of being quickly repaired, which is simple, scientific and reasonable in design structure. The utility model can solve the problems that the ladle is frequently subjected to cold repair, the damage of heat expansion and cold contraction of a refractory material of a ladle lining is aggravated, and the service life of the ladle is reduced. Meanwhile, the problem that pouring operation needs to be frequently carried out in the use process of the ladle, the ladle bottom is positioned at the position of the suspended top, and the refractory lining body is easy to fall off is solved.
The technical scheme adopted for solving the technical problems is as follows: an anti-drop ladle bottom capable of being quickly repaired comprises a ladle 1, a casting material layer 2, a first aluminum silicon carbide carbon brick layer 3 and a second aluminum silicon carbide carbon brick layer 4; the bottom of the ladle 1 is poured with a castable layer 2, and the circumferential inner wall of the ladle 1 is built with a refractory brick layer; the prefabricated impact plate 5 is arranged at the bottom center of the ladle 1, the prefabricated impact plate 5 is a square body, the prefabricated impact plate 5 comprises an impact plate body 51 and an extension platform 52, the impact plate body 51 is square, and the extension platform 52 extends to the outer side of the impact plate body 51 along the four sides of the bottom of the impact plate body 51; the first aluminum silicon carbide carbon brick layer 3 is built at the outer side of the extension platform 52, and the first aluminum silicon carbide carbon brick layer 3 is flush with the extension platform 52 in height; the second aluminum silicon carbide carbon brick layer 4 is built at the peripheral position of the impact plate body 51, the second aluminum silicon carbide carbon brick layer 4 is built at the upper parts of the first aluminum silicon carbide carbon brick layer 3 and the extension platform 52, and the second aluminum silicon carbide carbon brick layer 4 is flush with the impact plate body 51.
The pouring material layer 2 is poured on the steel body at the bottom of the ladle 1, and the pouring material layer 2 is molded into a round shape matched with the bottom of the ladle 1.
The first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 are built by refractory clay on an aluminum silicon carbide carbon brick seat, and the refractory clay mortar joint of the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 is 1 mm.
The inner side of the first aluminum silicon carbide carbon brick layer 3 is tightly propped against the outer side surface of the extension platform 52, and the outer side of the first aluminum silicon carbide carbon brick layer 3 is tightly propped against the inner wall of the ladle 1.
The inner side of the second aluminum silicon carbide carbon brick layer 4 is tightly propped against the outer side surface of the impact plate body 51, and the outer side of the second aluminum silicon carbide carbon brick layer 4 is tightly propped against the inner wall of the ladle 1.
The thickness of the first aluminum silicon carbide carbon brick layer 3 and the extension platform 52 is 100 mm, and the width of the extension platform 52 is 250 mm.
Large aggregate with granularity larger than 10 mm is added when the prefabricated impact plate 5 is prefabricated, and the impact plate body 51 and the extension platform 52 of the prefabricated impact plate 5 are of a prefabricated integral structure.
The masonry process of the ladle bottom of the ladle capable of being quickly repaired by the anti-falling ladle comprises the following steps: firstly, a layer of unshaped refractory castable is poured at the bottom of the ladle 1, and the area far away from the prefabricated impact plate 5 is circularly built around the prefabricated impact plate by using aluminum silicon carbide carbon bricks and is mutually propped against each other. Then taking four side lines of the prefabricated impact plate 5 as basic lines, and taking an extension line to the bottom-covered steel shell along the anticlockwise direction to determine A, B, C, D masonry areas; A. b, C, D the prefabricated impact plates 5 are taken as X axes, extension lines are taken as Y axes, the first aluminum silicon carbide carbon brick layers 3 are built at the outer side positions of the extension platforms 52, and the first aluminum silicon carbide carbon brick layers 3 are flush with the extension platforms 52 in height; the second aluminum silicon carbide carbon brick layer 4 is built at the peripheral position of the impact plate body 51, the second aluminum silicon carbide carbon brick layer 4 is built at the upper parts of the first aluminum silicon carbide carbon brick layer 3 and the extension platform 52, and the second aluminum silicon carbide carbon brick layer 4 is flush with the impact plate body 51; the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 are built block by 1mm fireclay mortar joints, and the space which reaches the bottom edge position of the ladle 1 and is less than half brick blocks is filled with casting materials.
The prefabricated impact plate 5 is arranged at the bottom center of the ladle 1, the prefabricated impact plate 5 is a square body, the prefabricated impact plate 5 comprises an impact plate body 51 and an extension platform 52, the impact plate body 51 is square, and the extension platform 52 extends to the outer side of the impact plate body 51 along the four sides of the bottom of the impact plate body 51. The main purpose of this arrangement is: by means of the arrangement of the extension platform 52 of the impact plate body 51, on one hand, the sinterability of the prefabricated impact plate 5 and the aluminum silicon carbide carbon bricks is improved, and the prefabricated impact plate 5 and the built aluminum silicon carbide carbon bricks form a firm whole; on the other hand, the falling off of the aluminum silicon carbide carbon brick at the bottom of the ladle 1 and the prefabricated impact plate (the aluminum silicon carbide carbon brick at the bottom of the ladle 1 and the prefabricated impact plate are in a suspended state due to the high-frequency dumping operation) is effectively prevented.
The first aluminum silicon carbide carbon brick layer 3 is built at the outer side of the extension platform 52, and the first aluminum silicon carbide carbon brick layer 3 is flush with the extension platform 52 in height; the second aluminum silicon carbide carbon brick layer 4 is built at the peripheral position of the impact plate body 51, the second aluminum silicon carbide carbon brick layer 4 is built at the upper parts of the first aluminum silicon carbide carbon brick layer 3 and the extension platform 52, and the second aluminum silicon carbide carbon brick layer 4 is flush with the impact plate body 51. The main purpose of this arrangement is: on the one hand, the prefabricated impact plate 5 can be firmly inlaid at the bottom of the ladle 1, so that the prefabricated impact plate 5, the first aluminum silicon carbide carbon brick layer 3, the second aluminum silicon carbide carbon brick layer 4 and the bottom of the ladle 1 form an integral inlaid structure, and the falling of the aluminum silicon carbide carbon bricks and the prefabricated impact plate at the bottom of the ladle 1 is effectively prevented; on the other hand, the impact resistance of the bottom of the ladle bearing the gravity and the thermal stress of the molten iron is improved, and the service life of the bottom of the ladle 1 is prolonged.
Large aggregate with granularity larger than 10 mm is added when the prefabricated impact plate 5 is prefabricated, and the impact plate body 51 and the extension platform 52 of the prefabricated impact plate 5 are of a prefabricated integral structure. The main purpose of this arrangement is: on one hand, the thermal state bonding performance of the prefabricated impact plate 5 and the aluminum silicon carbide carbon bricks is improved by utilizing large aggregate with granularity larger than 10 mm in the prefabricated impact plate 5, so that the molten iron gravitational potential energy impact resistance of the material is improved; on the other hand, the prefabricated impact plate 5 has the advantages of long service life to the middle period, easy repair and convenient combination, and can realize the quick replacement of the prefabricated impact plate 5 so as to realize the reuse of the ladle bottom.
The utility model has the beneficial effects that: through the mosaic structure of the prefabricated impact plate, the first aluminum silicon carbide carbon brick layer and the second aluminum silicon carbide carbon brick layer, the integrity of the prefabricated impact plate, the first aluminum silicon carbide carbon brick layer and the second aluminum silicon carbide carbon brick layer is improved, molten iron or molten steel is not easy to adhere, and the prefabricated impact plate can be quickly replaced easily and conveniently in repair and combination; the falling off of the aluminum silicon carbide carbon brick at the bottom of the ladle and the prefabricated impact plate is effectively prevented.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of a prefabricated impingement plate of the present utility model;
the marks in the figure: 1. ladle, 2, pouring material layer, 3, first aluminium carborundum charcoal brick layer, 4, second aluminium carborundum charcoal brick layer, 5, prefabricated strike plate, 51, strike plate body, 52, extension platform.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
The utility model provides an anti-drop ladle bottom capable of being quickly repaired, which comprises the following steps:
as shown in fig. 1, a castable layer 2 is poured at the bottom of a ladle 1, and a refractory brick layer is built on the circumferential inner wall of the ladle 1. The material layer 2 is poured at the bottom of the ladle 1, so that the service life of the ladle steel body can be prolonged, the heat conduction efficiency of the ladle shell is reduced, and the heat insulation performance of the ladle 1 is improved.
As shown in fig. 1 or 2, the prefabricated impact plate 5 is disposed at the bottom center of the ladle 1, the prefabricated impact plate 5 is a square body, the prefabricated impact plate 5 includes an impact plate body 51 and an extension platform 52, the impact plate body 51 is square, and the extension platform 52 extends to the outer side of the impact plate body 51 along the bottom four sides of the impact plate body 51. The extension platform 52 is arranged, and the prefabricated impact plate 5 can be firmly inlaid in the center of the bottom of the ladle 1 under the cooperation of the jacking masonry of the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4.
As shown in fig. 1, the first aluminum silicon carbide carbon brick layer 3 is built at the outer side position of the extension platform 52, and the first aluminum silicon carbide carbon brick layer 3 is flush with the height of the extension platform 52; the second aluminum silicon carbide carbon brick layer 4 is built at the peripheral position of the impact plate body 51, the second aluminum silicon carbide carbon brick layer 4 is built at the upper parts of the first aluminum silicon carbide carbon brick layer 3 and the extension platform 52, and the second aluminum silicon carbide carbon brick layer 4 is flush with the impact plate body 51. The first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 are tightly supported on the bottom of the ladle 1 through the masonry of the prefabricated impact plate 5, and the prefabricated impact plate 5 can be firmly inlaid at the bottom of the ladle 1, so that the bottom of the prefabricated impact plate 5, the first aluminum silicon carbide carbon brick layer 3, the second aluminum silicon carbide carbon brick layer 4 and the ladle 1 form an integral inlaid structure, and the falling of a refractory lining body at the bottom of the ladle 1 is effectively prevented.
As shown in fig. 1, the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 are built by refractory clay on an aluminum silicon carbide carbon brick seat, and the refractory clay mortar joint of the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 is 1 mm. The first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 are built by refractory clay on the aluminum silicon carbide carbon brick seat, the refractory clay mortar joint of the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 is 1mm, the sinterability between the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 and the prefabricated impact plate 5 can be improved, and the high first aluminum silicon carbide carbon brick layer 3, the second aluminum silicon carbide carbon brick layer 4 and the prefabricated impact plate 5 are integrated.
As shown in fig. 1 or 2, when the prefabricated impact plate 5 is prefabricated, large aggregate with granularity larger than 10 mm is added, and the impact plate body 51 and the extension platform 52 of the prefabricated impact plate 5 are of a prefabricated integral structure. The size of the prefabricated impact plate 5 is calculated according to the swing angle of the blast furnace tapping swing groove in a simulation mode, the ladle bottom molten iron falling range is calculated, the integral prefabricated impact plate 5 with proper design size covers the ladle bottom molten iron falling range (namely an impact area), and aluminum silicon carbide carbon bricks are used for masonry at the periphery.
The masonry process of the ladle bottom of the ladle capable of being quickly repaired by the anti-falling ladle comprises the following steps: firstly, a layer of unshaped refractory castable is poured at the bottom of the ladle 1, and the area far away from the prefabricated impact plate 5 is circularly built around the prefabricated impact plate by using aluminum silicon carbide carbon bricks and is mutually propped against each other. Then taking four side lines of the prefabricated impact plate 5 as basic lines, and taking an extension line to the bottom-covered steel shell along the anticlockwise direction to determine A, B, C, D masonry areas; A. b, C, D the prefabricated impact plates 5 are taken as X axes, extension lines are taken as Y axes, the first aluminum silicon carbide carbon brick layers 3 are built at the outer side positions of the extension platforms 52, and the first aluminum silicon carbide carbon brick layers 3 are flush with the extension platforms 52 in height; the second aluminum silicon carbide carbon brick layer 4 is built at the peripheral position of the impact plate body 51, the second aluminum silicon carbide carbon brick layer 4 is built at the upper parts of the first aluminum silicon carbide carbon brick layer 3 and the extension platform 52, and the second aluminum silicon carbide carbon brick layer 4 is flush with the impact plate body 51; the first aluminum silicon carbide carbon brick layer 3 and the second aluminum silicon carbide carbon brick layer 4 are built block by 1mm fireclay mortar joints, and the space which reaches the bottom edge position of the ladle 1 and is less than half brick blocks is filled with casting materials.
Various modifications to the embodiments described above will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An anti-drop ladle bottom capable of being quickly repaired comprises a ladle, a pouring material layer, a first aluminum silicon carbide carbon brick layer and a second aluminum silicon carbide carbon brick layer; the bottom of the ladle is poured with a pouring material layer, and the circumferential inner wall of the ladle is built with a refractory brick layer; the method is characterized in that: the prefabricated impact plate is arranged at the bottom center of the ladle, the prefabricated impact plate is a square body and comprises an impact plate body and an extension platform, the impact plate body is square, and the extension platform extends to the outer side of the impact plate body along the four sides of the bottom of the impact plate body; the first aluminum silicon carbide carbon brick layer is built at the outer side of the extension platform, and the first aluminum silicon carbide carbon brick layer is flush with the extension platform in height; the second aluminium carborundum charcoal brick layer is built in the position all around of impact plate body, the second aluminium carborundum charcoal brick layer is built in first aluminium carborundum charcoal brick layer and extension platform's upper portion, the second aluminium carborundum charcoal brick layer with impact plate body parallel and level.
2. The anti-drop quick repairable ladle bottom of claim 1, wherein: the pouring material layer is poured on the steel body at the bottom of the ladle, and the pouring material layer is poured and molded into a round shape matched with the bottom of the ladle.
3. The anti-drop quick repairable ladle bottom of claim 1, wherein: the first aluminum silicon carbide carbon brick layer and the second aluminum silicon carbide carbon brick layer are built by refractory clay on the aluminum silicon carbide carbon brick seat, and the refractory clay mortar joint of the first aluminum silicon carbide carbon brick layer and the second aluminum silicon carbide carbon brick layer is 1 mm.
4. The anti-drop quick repairable ladle bottom of claim 1, wherein: the inner side of the first aluminum silicon carbide carbon brick layer is tightly propped against the outer side surface of the extension platform, and the outer side of the first aluminum silicon carbide carbon brick layer is tightly propped against the inner wall of the ladle.
5. The anti-drop quick repairable ladle bottom of claim 1, wherein: the inner side of the second aluminum silicon carbide carbon brick layer is tightly propped against the outer side surface of the impact plate body, and the outer side of the second aluminum silicon carbide carbon brick layer is tightly propped against the inner wall of the ladle.
6. The anti-drop quick repairable ladle bottom of claim 1, wherein: the large aggregate with granularity larger than 10 mm is added when the prefabricated impact plate is prefabricated, and the impact plate body and the extension platform of the prefabricated impact plate are of a prefabricated integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322075780.3U CN220739460U (en) | 2023-08-03 | 2023-08-03 | Anti-drop ladle bottom capable of being repaired rapidly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322075780.3U CN220739460U (en) | 2023-08-03 | 2023-08-03 | Anti-drop ladle bottom capable of being repaired rapidly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220739460U true CN220739460U (en) | 2024-04-09 |
Family
ID=90553598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322075780.3U Active CN220739460U (en) | 2023-08-03 | 2023-08-03 | Anti-drop ladle bottom capable of being repaired rapidly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220739460U (en) |
-
2023
- 2023-08-03 CN CN202322075780.3U patent/CN220739460U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3843106A (en) | Furnace | |
| CN106435073B (en) | A kind of blast furnace lining monolithic casting construction method for substituting spray paint and refractory brick | |
| CN101748246B (en) | Method for prolonging service life of insertion tube of vacuum circulation degassing furnace | |
| CN105838833A (en) | Blast furnace bottom and hearth integral seamless casting refractory overhaul and maintenance method | |
| CN108893570A (en) | Integrated poured blast furnace crucibe and its casting construction method | |
| CN2853801Y (en) | Basque structure of melting-reduction furnace for chromium iron smelting | |
| CN111687402A (en) | Tundish composite ladle bottom permanent lining and construction process thereof | |
| CN218989346U (en) | Cover type stepping trolley and top refractory arrangement structure thereof | |
| CN220739460U (en) | Anti-drop ladle bottom capable of being repaired rapidly | |
| CN110918967A (en) | Repairing method for inner liner of torpedo hot metal mixer car | |
| CN109439825B (en) | A method for prolonging the service life of blast furnace main trench | |
| CN113333724B (en) | A kind of square and round ladle and its refractory masonry method | |
| CN213388767U (en) | RH dip pipe structure | |
| CN108485684A (en) | A kind of dry quenching coke pot lining plate | |
| CN113333726A (en) | Hot metal ladle building structure and maintenance method | |
| CN219546993U (en) | Assembled high-strength corrosion-resistant prefabricated tap hole chute | |
| CN113430314B (en) | Long-life blast furnace bottom hearth refractory structure and maintenance method | |
| CN224168742U (en) | Construction structure of molten iron ladle spout refractory | |
| CN217677614U (en) | Corrosion-resistant blast furnace iron runner | |
| CN222931824U (en) | Novel hot metal bottle masonry structure | |
| CN207874504U (en) | A kind of large-scale refractory material prefabricated block forming die in coke oven coal filling hole | |
| CN218321462U (en) | A blast furnace hearth structure | |
| CN222617525U (en) | Transfer chute lining of rotary kiln | |
| CN220393785U (en) | Novel precast block of blast furnace main channel skimming device | |
| CN111560486A (en) | Blast furnace bottom building method for guiding furnace bottom to be in shape of boiler bottom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |