CN114809522A - Construction method of cast-iron site terrace - Google Patents
Construction method of cast-iron site terrace Download PDFInfo
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- CN114809522A CN114809522A CN202210720717.8A CN202210720717A CN114809522A CN 114809522 A CN114809522 A CN 114809522A CN 202210720717 A CN202210720717 A CN 202210720717A CN 114809522 A CN114809522 A CN 114809522A
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- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 47
- 238000005266 casting Methods 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 238000005498 polishing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- HDETVIAMQNTONT-UHFFFAOYSA-N C[SiH2]O.[Na] Chemical compound C[SiH2]O.[Na] HDETVIAMQNTONT-UHFFFAOYSA-N 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000003749 cleanliness Effects 0.000 abstract description 4
- 239000004593 Epoxy Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 229920006334 epoxy coating Polymers 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
- E04F15/142—Dividing strips or boundary strips
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a construction method of a cast-iron site terrace. The construction method of the cast-iron site terrace comprises the following steps: s1, dividing the cast iron terrace into a high-temperature area and a normal-temperature area; s2, pouring heat-resistant and wear-resistant materials in a high-temperature area; s3, pouring the modified concrete in a normal temperature area, and arranging a heat-resistant and wear-resistant material with the thickness of 8 mm-10 mm on the modified concrete. According to the construction method of the terrace of the casting house, provided by the invention, different casting materials are adopted aiming at different temperature areas, the terrace is stable in structure, wear-resistant, heat-resistant, not easy to deform and fall off, the requirement of complicated working conditions of the casting house site is met, the damage caused in the use process of tools and appliances is reduced, the daily maintenance is simple, the cleaning effect of the casting house platform can be effectively kept, and the attractiveness and cleanliness of the site are improved.
Description
Technical Field
The invention relates to the technical field of metallurgical production, in particular to a construction method of a cast-iron site terrace.
Background
In the early stage, most metallurgical tapping ground plateaus are of brick bodies or concrete structures, and the collision and abrasion in the using process can cause the reduction of ground flatness and the difficulty in maintaining the smoothness, so that the 6S management (namely, finishing, stopping, cleaning, literacy and safety) on the site is difficult and serious. In recent years, with the promotion of environmental protection policies of green production, metallurgical systems are improved from equipment to processes, the terrace of the cast house is the most visual expression, and a new design and construction scheme is provided.
At present, for realizing that the cast house platform is clean and tidy, common two kinds of modes: 1. the epoxy terrace, namely the epoxy terrace is paved on the platform of the cast house, in the using process, the using of various metal tools/tracked vehicles and the steering/braking when the vehicle runs can cause the fouling of the epoxy coating, especially under the action of a hot environment, the problems of color change, hollowing, stripping and the like of the epoxy coating are easy to occur due to the change of the strength of the basic concrete, so the daily maintenance and repair cost of the terrace is high; 2. the second mode is that the part adopts the epoxy terrace, and remaining is for not influencing the production operation, keeps original state, and this kind of mode leads to presenting local isolation with production, and whole clean and tidy effect is incomplete.
Disclosure of Invention
The invention provides a construction method of a cast iron site terrace, which is used for solving the defects of easy deformation, color change, separation and poor integral cleanliness caused by adopting an epoxy terrace wholly or partially in the prior art.
The invention provides a construction method of a cast-iron site terrace, which comprises the following steps:
s1, dividing the casting floor into a high-temperature area and a normal-temperature area, wherein the high-temperature area is an area where an iron runner and a slag runner are located, and the rest areas are normal-temperature areas;
s2, pouring heat-resistant and wear-resistant materials in the high-temperature area;
and S3, pouring the modified concrete in the normal temperature area.
According to the construction method of the cast-iron site terrace provided by the invention, the step S2 further comprises the following steps:
and S21, arranging a ditch edge protection plate at the high-temperature area, the iron ditch and the slag ditch edge, and connecting the ditch edge protection plate with the heat-resistant and wear-resistant material into an integral structure through a supporting piece and/or an anchor hook.
According to the construction method of the cast-iron site terrace provided by the invention, the step S3 further comprises the following steps:
and S31, before the modified concrete in the normal temperature zone is initially set, laying a heat-resistant wear-resistant material with the thickness of 8-10 mm on the top of the modified concrete.
According to the method for constructing the cast-iron site terrace, provided by the invention, the method also comprises the following steps between the steps S2 and S3:
and the high-temperature area is connected with the normal-temperature area by a force transmission partition plate at the boundary.
According to the construction method of the cast-iron site terrace, the force transmission partition plate comprises a partition plate, a force transmission rod and a sleeve, a through hole is formed in the partition plate, the force transmission rod penetrates through the through hole, one end of the force transmission rod is arranged in the high-temperature area, the other end of the force transmission rod is connected with the sleeve, and the sleeve is movably connected with a modified concrete internal reinforcing steel bar in the normal-temperature area.
According to the construction method of the cast-iron site terrace provided by the invention, after the steps, the construction method further comprises the following steps:
s4, leveling and polishing the high-temperature area and the normal-temperature area respectively;
and S5, carrying out surface treatment on the high-temperature area and the normal-temperature area by adopting nano silicon materials, and then grinding and polishing.
According to the construction method of the cast iron site terrace provided by the invention, the high-temperature area is made of heat-resistant and wear-resistant materials, the components of the heat-resistant and wear-resistant materials comprise one or more of alumina, silicon carbide, titanium alloy, ceramics and basalt materials, and the strength of the heat-resistant and wear-resistant materials is more than 100 MPa; the normal temperature zone is modified by one or more of modified concrete comprising sodium methyl silanol, sodium methyl silicate and sodium methyl silicate, and steel fiber is added.
According to the construction method of the cast iron terrace provided by the invention, the cast iron terrace is divided into a high-temperature area and a normal-temperature area, the heat-resistant wear-resistant material is poured in the high-temperature area, and the modified concrete is poured in the normal-temperature area, so that the mode that the epoxy terrace is adopted wholly or partially in the prior art is replaced. According to the construction method of the terrace of the casting house, provided by the invention, different casting materials are adopted aiming at different temperature areas, the terrace is stable in structure, wear-resistant, heat-resistant, not easy to deform and fall off, the requirement of complicated working conditions of the casting house site is met, the damage caused in the use process of tools and appliances is reduced, the daily maintenance is simple, the cleaning effect of the casting house platform can be effectively kept, and the attractiveness and cleanliness of the site are improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for constructing a cast-iron site terrace according to the present invention;
FIG. 2 is a schematic structural view of a terrace structure of a cast house provided by the present invention;
FIG. 3 is a schematic view of the construction of a force transfer spacer provided by the present invention;
FIG. 4 is a schematic cross-sectional view of a separator plate provided by the present invention;
reference numerals:
1: an iron runner; 2: a structural foundation; 3: a refractory brick; 4: heat-resistant and wear-resistant materials; 5: modifying the concrete; 91: a dowel bar; 92: a sleeve; 93: a partition plate; 94: a through hole; 6: a guard plate; 7: a support member; 8: an anchor hook; 9: a force transfer partition plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for constructing a cast-iron site terrace according to the present invention will be described with reference to fig. 1. The construction method comprises the following steps:
s1, dividing the tapping floor into a high-temperature area and a normal-temperature area, wherein the high-temperature area is an area where the iron runner 1 and the slag runner are located, and the rest areas are normal-temperature areas;
s2, pouring heat-resistant and wear-resistant materials 4 in a high-temperature area;
s3, pouring the modified concrete 5 in a normal temperature area, and arranging the heat-resistant and wear-resistant material 4 on the modified concrete.
Specifically, a cast house terrace is positioned on the outer side of an iron runner 1, refractory bricks 3 are laid above the iron runner 1, and a high-temperature area and a normal-temperature area are divided according to the radiation temperature of the iron runner 1; the high temperature area is located at a higher temperature, and the normal temperature area is located at a lower temperature, namely the high temperature area is located relatively closer to the iron runner 1, and the normal temperature area is located relatively farther from the iron runner 1. Generally, the horizontal distance between the force-transmitting partition 9 and the edge of the ditch is not less than 0.5 m.
Furthermore, the high-strength heat-resistant wear-resistant material 4 is poured in the high-temperature area, can be made of alumina, silicon carbide, aluminum alloy or ceramic composite materials and the like, has good heat resistance and wear resistance, can be used within the range of 50-800 ℃, and has the strength of more than or equal to 100 MPa; the method comprises the steps of pouring modified concrete 5 in a normal temperature zone, wherein the modified concrete 5 comprises one or more of sodium methyl silanol, sodium methyl silicate and sodium methyl silicate for modification, adding steel fibers, adding a modifier into the concrete to enhance the structural strength of the concrete, adding the steel fibers distributed disorderly into the modified concrete 5, effectively hindering the expansion of micro cracks and the formation of macro cracks in the concrete, remarkably improving the tensile, bending, impact and fatigue resistance of the concrete, and having better ductility.
The invention provides a construction method of a cast iron site terrace, which is characterized in that a high-temperature area and a normal-temperature area are divided in the cast iron site terrace, and a heat-resistant wear-resistant material 4 is poured in the high-temperature area, the components of the material comprise one or more of alumina, silicon carbide, titanium alloy, ceramic and basalt material, and the strength of the material is more than 100 MPa; the modified concrete 5 is poured in the normal temperature area, thereby replacing the mode of totally or partially adopting an epoxy terrace in the prior art. According to the construction method of the terrace of the casting house, provided by the invention, different casting materials are adopted aiming at different temperature areas, the terrace is stable in structure, wear-resistant, heat-resistant, not easy to deform and fall off, the requirement of complicated working conditions of the casting house site is met, the damage caused in the use process of tools and appliances is reduced, the daily maintenance is simple, the cleaning effect of the casting house platform can be effectively kept, and the attractiveness and cleanliness of the site are improved.
In one embodiment of the present invention, step S2 further includes: s21, arranging a guard plate 6 at the high-temperature area, the iron runner 1 and the slag runner edge, and connecting the guard plate with the heat-resistant and wear-resistant material 4 into an integral structure through a support member 7 and/or an anchor hook 8. Specifically, in this embodiment, the guard plate 6 is disposed on the top of the heat-resistant and wear-resistant material 4, the guard plate 6 is located above the outer edge of the iron runner 1, and the fixing manner of the guard plate 6 includes three types: 1. the guard plate 6 is supported on the top of the heat-resistant and wear-resistant material 4 through a support member 7, one end of the support member 7 is abutted against the upper surface of the structural foundation 2, and the other end of the support member 7 is abutted against the bottom surface of the guard plate 6; 2. the guard plate 6 is connected with the heat-resistant and wear-resistant material 4 below the guard plate through an anchor hook 8; 3. the guard plate 6 is supported by a support 7 and connected with the heat-resistant and wear-resistant material 4 below by an anchor 8.
In one embodiment of the present invention, step S3 further includes: and S31, before the modified concrete 5 in the normal temperature area is initially set, laying the heat-resistant and wear-resistant material 4 on the top of the modified concrete 5. Specifically, in this embodiment, heat-resistant wear-resistant material 4 is laid on the top of the normal temperature zone, so that the heat resistance and wear resistance of the top of the normal temperature zone are enhanced, and heat-resistant wear-resistant material 4 on the top of the normal temperature zone can be made of the same material as heat-resistant wear-resistant material 4 in the high temperature zone, so that the normal temperature zone and the high temperature zone are highly consistent, the tops are smooth in transition, the effect is consistent, and local or junction deformation, color change or falling and other phenomena are not easy to occur.
Further, in the step S31, the thickness of the heat-resistant and wear-resistant material 4 located in the normal temperature region ranges from 8mm to 10 mm. Of course, the laying thickness of the heat-resistant and wear-resistant material 4 in the normal temperature zone can also adopt other dimensions according to the overall thickness or overall height requirement of the normal temperature zone and the high temperature zone.
In one embodiment of the present invention, between steps S2 and S3, the method further includes: the boundary of the high-temperature area and the normal-temperature area is connected by a force transmission clapboard 9. Specifically, as shown in fig. 3 and 4, the force transmission partition plate 9 includes a partition plate 93, a force transmission rod 91 and a sleeve 92, the partition plate 93 is vertically disposed at a boundary between the high temperature region and the normal temperature region, the partition plate 93 is provided with a through hole 94, the force transmission rod 91 is movably disposed in the through hole 94, one end of the force transmission rod 91 is movably disposed in the high temperature region, the other end of the force transmission rod 91 is connected with the sleeve 92, the sleeve 92 is movably connected with the steel bar inside the modified concrete 5, and stress transmission is performed through the force transmission rod 91 and the sleeve 92. Furthermore, the partition plate 93 is horizontally provided with a plurality of through holes 94, a dowel bar 91 is correspondingly arranged in each through hole 94, each dowel bar 91 is connected with a corresponding sleeve 92, and the stress transmission effect is improved by arranging a plurality of groups of dowel bars 91 and sleeves 92. In this embodiment, the force transmission partition plate 9 is horizontally connected between the high temperature region and the normal temperature region, and stress cracks between the high temperature region and the normal temperature region are transmitted through the force transmission partition plate 9, so that the stress of the two regions is relatively balanced, and the deformation caused by different stresses between the high temperature region and the normal temperature region is weakened.
In one embodiment of the present invention, after the above steps are completed, the method further includes: s4, leveling and polishing the high-temperature area and the normal-temperature area respectively; and S5, carrying out surface treatment on the high-temperature area and the normal-temperature area by adopting nano silicon materials, and then grinding and polishing. Specifically, after pouring of a high-temperature area and a normal-temperature area is completed, leveling and polishing are respectively carried out, so that the strength of the cast iron yard terrace meets the requirements of the cast iron yard terrace, and finally, nano silicon materials are adopted for surface treatment and grinding and polishing are carried out, so that the construction process of the cast iron yard terrace is completed.
According to fig. 2, the present invention also provides a cast iron site terrace structure which is separated from the structural foundation 2 at the bottom thereof by a double PE film. The cast iron site terrace structure is constructed by the cast iron site terrace construction method in the embodiment, and comprises the following steps: high temperature zone and normal temperature zone.
Wherein, heat-resistant and wear-resistant materials 4 are poured in the high-temperature area; and pouring modified concrete 5 in the normal temperature zone.
Furthermore, the high temperature area and the normal temperature area are connected through a force transmission clapboard 9. A guard plate 6 is arranged above one side of the heat-resistant and wear-resistant material 4 of the high-temperature area, which is close to the iron runner 1, and the guard plate 6 is fixed through a support member 7 and/or an anchor hook 8; heat-resistant wear-resistant materials 4 with a certain thickness are laid above the modified concrete 5 of the medium-temperature area, so that the high-temperature area is flush with the upper surface of the normal-temperature area, and the flatness and the uniformity of a transition area are improved.
The cast iron site terrace structure provided by the invention is constructed by adopting the cast iron site terrace construction method, the heat-resistant wear-resistant material 4 is poured in a high-temperature area, and the modified concrete 5 is poured in a normal-temperature area, so that the requirements of the cast iron site on-site working conditions are met, the daily maintenance is simple, and the smoothness is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A construction method of a cast-iron site terrace is characterized by comprising the following steps:
s1, dividing the casting floor into a high-temperature area and a normal-temperature area, wherein the high-temperature area is an area where an iron runner and a slag runner are located, and the rest areas are normal-temperature areas;
s2, pouring heat-resistant and wear-resistant materials in the high-temperature area;
and S3, pouring the modified concrete in the normal temperature area.
2. The cast-iron house terrace construction method according to claim 1, wherein the step S2 further comprises:
and S21, arranging a ditch edge protection plate at the high-temperature area, the iron ditch and the slag ditch edge, and connecting the ditch edge protection plate with the heat-resistant and wear-resistant material into an integral structure through a supporting piece and/or an anchor hook.
3. The cast-iron house terrace construction method according to claim 1, wherein the step S3 further comprises:
and S31, before the modified concrete in the normal temperature zone is initially set, laying a heat-resistant wear-resistant material with the thickness of 8-10 mm on the top of the modified concrete.
4. The cast-house terrace construction method according to claim 1, further comprising, between steps S2 and S3:
and the high-temperature area is connected with the normal-temperature area by a force transmission partition plate at the boundary.
5. The cast-iron site terrace construction method according to claim 4, wherein the force transmission partition plate comprises a partition plate, a force transmission rod and a sleeve, the partition plate is provided with a through hole, the force transmission rod penetrates through the through hole, one end of the force transmission rod is arranged in the high-temperature area, the other end of the force transmission rod is connected with the sleeve, and the sleeve is movably connected with the modified concrete internal steel bar in the normal-temperature area.
6. The cast-iron site terrace construction method according to any one of claims 1 to 5, further comprising, after completion of the above steps:
s4, leveling and polishing the high-temperature area and the normal-temperature area respectively;
and S5, carrying out surface treatment on the high-temperature area and the normal-temperature area by adopting nano silicon materials, and then grinding and polishing.
7. The cast house terrace construction method according to claim 1, wherein the heat-resistant and wear-resistant material for the high temperature zone comprises one or more of alumina, silicon carbide, titanium alloy, ceramic and basalt material, and the strength of the material is more than 100 MPa; the normal temperature zone is modified by one or more of modified concrete comprising sodium methyl silanol, sodium methyl silicate and sodium methyl silicate, and steel fiber is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720717.8A CN114809522A (en) | 2022-06-24 | 2022-06-24 | Construction method of cast-iron site terrace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720717.8A CN114809522A (en) | 2022-06-24 | 2022-06-24 | Construction method of cast-iron site terrace |
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| CN114809522A true CN114809522A (en) | 2022-07-29 |
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| CN202210720717.8A Pending CN114809522A (en) | 2022-06-24 | 2022-06-24 | Construction method of cast-iron site terrace |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2018703A1 (en) * | 1989-06-21 | 1990-12-21 | Jacobus Van Laar | Channel structure for flow of molten pig iron |
| CN101748226A (en) * | 2008-12-18 | 2010-06-23 | 鞍钢集团耐火材料公司 | Method for pouring blast furnace iron runner |
| CN208995861U (en) * | 2018-09-18 | 2019-06-18 | 青岛市政空间开发集团有限责任公司 | A kind of concrete road surface rod piece installation stationary steel bushing tube stent device |
| CN209412252U (en) * | 2018-12-10 | 2019-09-20 | 吴兴伟 | A kind of long-life environment-friendly type blast furnace slag iron runner structure |
| CN110683838A (en) * | 2019-10-11 | 2020-01-14 | 上海新泰山高温工程材料有限公司 | Novel blast furnace casting slag runner castable and preparation method thereof |
| CN211079803U (en) * | 2019-03-29 | 2020-07-24 | 张卫 | Longitudinal construction joint structure |
| CN211621062U (en) * | 2019-12-16 | 2020-10-02 | 中交隧道工程局有限公司 | Concrete pavement construction joint for liquefied natural gas station construction |
-
2022
- 2022-06-24 CN CN202210720717.8A patent/CN114809522A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2018703A1 (en) * | 1989-06-21 | 1990-12-21 | Jacobus Van Laar | Channel structure for flow of molten pig iron |
| CN101748226A (en) * | 2008-12-18 | 2010-06-23 | 鞍钢集团耐火材料公司 | Method for pouring blast furnace iron runner |
| CN208995861U (en) * | 2018-09-18 | 2019-06-18 | 青岛市政空间开发集团有限责任公司 | A kind of concrete road surface rod piece installation stationary steel bushing tube stent device |
| CN209412252U (en) * | 2018-12-10 | 2019-09-20 | 吴兴伟 | A kind of long-life environment-friendly type blast furnace slag iron runner structure |
| CN211079803U (en) * | 2019-03-29 | 2020-07-24 | 张卫 | Longitudinal construction joint structure |
| CN110683838A (en) * | 2019-10-11 | 2020-01-14 | 上海新泰山高温工程材料有限公司 | Novel blast furnace casting slag runner castable and preparation method thereof |
| CN211621062U (en) * | 2019-12-16 | 2020-10-02 | 中交隧道工程局有限公司 | Concrete pavement construction joint for liquefied natural gas station construction |
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