CN115612771A - Novel cooling wall equipment and preparation method thereof - Google Patents
Novel cooling wall equipment and preparation method thereof Download PDFInfo
- Publication number
- CN115612771A CN115612771A CN202211411871.3A CN202211411871A CN115612771A CN 115612771 A CN115612771 A CN 115612771A CN 202211411871 A CN202211411871 A CN 202211411871A CN 115612771 A CN115612771 A CN 115612771A
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- China
- Prior art keywords
- wall body
- groove
- cooling
- water
- cast
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses novel cooling wall equipment and a preparation method thereof. Comprising cast iron or cast steel stave walls; a U-shaped straight water pipe is integrally cast in the wall body; a groove is integrally cast on one side of the wall body, and a snake-shaped water-cooling copper pipe is arranged in the groove; a wall body hot surface protective layer is arranged on the heating surface of the wall body; the wall body hot surface protection layer is connected with the snakelike water-cooling copper pipe in a heat conduction way. The method comprises the following steps: preparing a cooling wall body, and integrally casting a straight-through water pipe in the wall body; a groove is integrally cast on one side of the wall body; preparing a snakelike water-cooling copper pipe; putting the manufactured snake-shaped water-cooling copper pipe into a groove of a cast iron/cast steel cooling wall body; and fixing the snakelike water-cooling copper pipe in the groove by using a heat conduction material. The invention not only realizes the reinforced blast furnace cooling, but also can obviously reduce the construction cost by adopting a mode of placing the copper pipe in the groove of the cooling wall inlaid brick on the basis of the cast iron or cast steel cooling wall.
Description
Technical Field
The invention relates to blast furnace body cooling wall equipment for iron and steel enterprises.
Background
The cooling of the blast furnace body is a necessary means for maintaining the production of the blast furnace, and the adopted cooling equipment is generally a cooling wall and is made of cast iron, cast steel, cast copper, rolled copper and the like.
Cast iron, cast steel and cast copper staves are cast with water pipes in the respective materials, the hot face of the stave is usually provided with grooves for brick-lining or refractory-casting to protect the stave from direct flushing with iron slag (see fig. 1 and 2), and rolled copper staves are water channels drilled in the copper plate (see fig. 3).
In recent years, with the progress of equipment level and operation level, the production efficiency of the blast furnace is greatly improved, the smelting strength is obviously improved, the higher requirement is put on the cooling capacity of the furnace body, and particularly, the long-life requirement of the blast furnace is difficult to meet by adopting cast iron or cast steel cooling walls at the middle lower part of a furnace belly, a furnace waist and a furnace body. At present, it is common practice to use copper cooling walls in the bosh, waist and lower middle of the shaft to enhance the cooling of the blast furnace. However, the price of copper is much higher than that of cast iron and cast steel, and the use of the copper cooling wall greatly increases the construction cost of the blast furnace.
Disclosure of Invention
To overcome the above drawbacks, the present invention provides a new stave cooler.
In order to achieve the purpose, the novel cooling wall equipment comprises a cast iron or cast steel cooling wall body; a U-shaped straight water pipe is integrally cast in the wall body; a groove is integrally cast on one side of the wall body, and a snake-shaped water-cooling copper pipe is arranged in the groove; a wall body hot surface protective layer is arranged on the heating surface of the wall body; the wall body hot surface protection layer is in heat conduction connection with the snakelike water-cooling copper pipe.
Furthermore, the snakelike water-cooling copper pipe is fixed in the groove by adopting a casting material, and the casting material protrudes out of the groove to form a hot surface protection layer of the wall body of the cast iron/cast steel cooling wall.
Furthermore, snakelike water-cooling copper pipe adopt the pouring material to fix snakelike water-cooling copper pipe in the recess the stave heating surface be provided with and inlay the brick, the inboard of inlaying the brick be located the recess with pouring material looks butt.
In order to achieve the above object, the present invention provides a method for manufacturing a novel stave cooler, comprising the steps of:
preparing a cast iron or cast steel cooling wall body, and integrally casting a straight-through water pipe in the wall body; a groove is integrally cast on one side of the wall body;
preparing a snakelike water-cooling copper pipe;
putting the manufactured snake-shaped water-cooling copper pipe into a groove of a cast iron/cast steel cooling wall body;
and fixing the snake-shaped water-cooling copper pipe in the groove by using a material with excellent heat conduction performance.
Further, the step of fixing the snake-shaped water-cooling copper pipe in the groove by using a material with excellent heat-conducting property comprises the following steps: and pouring materials with excellent heat conduction performance, wear resistance and erosion resistance are selected to be poured on the hot surface of the cast iron/cast steel cooling wall body (1 b) together with the groove to form a hot surface protective layer of the cast iron/cast steel cooling wall body (1 b).
Further, the step of fixing the snake-shaped water-cooling copper pipe in the groove by using a material with excellent heat-conducting property comprises the following steps: fixing the snakelike water-cooling copper pipe in the groove by using a pouring material with excellent heat conduction performance, and embedding the snakelike water-cooling copper pipe in the groove; then the hot surface of the wall body (1 b) of the cast iron/cast steel cooling wall is fully covered and inlaid with bricks.
The invention not only realizes the reinforced blast furnace cooling, but also can obviously reduce the construction cost by adopting a mode of placing the copper pipe in the groove of the cooling wall inlaid brick on the basis of the cast iron or cast steel cooling wall.
Drawings
FIG. 1 is a schematic diagram of a prior art structure 1, in which 1a is a cast copper stave wall; 2 is a straight-through water pipe copper pipe.
FIG. 2 is a schematic structural view of prior art 2, wherein 1b is a cast iron/cast steel stave wall; 2 is a straight-through water pipe steel pipe; and 3, a snakelike water pipe steel pipe.
FIG. 3 is a schematic diagram of prior art 3, wherein 1c is a rolled copper stave wall; 4 is a drilling water channel.
FIG. 4 is a structural view of the novel stave cooler of the present invention, with 1b being a cast iron/cast steel stave wall; 2 is a straight-through water pipe steel pipe; 5 is a snakelike water-cooling copper pipe
FIG. 5 is a method for protecting the hot side and the groove of the novel stave cooler of the present invention; wherein, 1b is a cast iron/cast steel cooling wall body; 2 is a straight-through water pipe steel pipe; 5 is a snakelike water-cooling copper pipe; 6 is a casting material.
FIG. 6 is another method of the hot side and groove protection process of the novel stave cooler of the present invention; wherein, 1b is a cast iron/cast steel cooling wall body; 2 is a straight-through water pipe steel pipe; 5 is a snakelike water-cooling copper pipe; 6 is a casting material; and 7, setting bricks.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
One embodiment of the present invention, as shown in FIG. 4, includes a cast iron or cast steel stave wall 1b; a straight-through water pipe 2 is integrally cast in the wall body; a groove is integrally cast on one side of the wall body, and a snake-shaped water-cooling copper pipe 5 is arranged in the groove.
The novel stave cooler apparatus of the above embodiment is prepared as follows:
a preparation stage: selecting the diameter of a proper snake-shaped water-cooling copper pipe (5) according to the requirement of cooling strength; arranging the trend and the inlet and outlet positions of the snakelike water-cooling copper pipe (5) according to the hot surface area of the cast iron/cast steel cooling wall body (1 b); and then determining the size and the arrangement of a groove on the hot surface of the wall body (1 b) of the cast iron/cast steel cooling wall according to the diameter and the trend of the snake-shaped water-cooled copper pipe (5), wherein the depth and the width of the groove are greater than the diameter of the snake-shaped water-cooled copper pipe (5), and the size and the position of an opening of an inlet and an outlet of the snake-shaped water-cooled copper pipe (5) on the wall body (1 b) of the cast iron/cast steel cooling wall.
The implementation stage is as follows: firstly, casting a cast iron/cast steel cooling wall body (1 b) and a straight-through water-cooling steel pipe (2), and manufacturing a snake-shaped water-cooling copper pipe (5); then, the manufactured snake-shaped water-cooling copper pipe (5) is placed into a groove (shown in figure 4) of the cast iron/cast steel cooling wall body (1 b) and is close to the bottom; finally, the snake-shaped water-cooling copper pipe (5) is fixed in the groove by pouring materials with excellent heat-conducting property.
As a further improvement of the embodiment, the method also comprises a method for protecting and treating the hot surface and the groove of the cast iron/cast steel cooling wall body (1 b), and the method is a full casting method: casting materials with excellent heat conduction performance, wear resistance and erosion resistance (such as RSIFC metal ceramic pre-coated slag skin casting materials produced by Beijing UnionRongda engineering materials GmbH) on the hot surface of the wall body (1 b) of the cast iron/cast steel cooling wall together with the groove to form a hot surface protective layer of the wall body (1 b) of the cast iron/cast steel cooling wall;
as an improvement of the method, the method also comprises a method for pouring and inlaying the bricks: firstly, pouring a groove on a cast iron/cast steel cooling wall body (1 b) by using a pouring material with excellent heat conduction performance, wherein the snake-shaped water-cooling copper pipe (5) is required to be embedded, and meanwhile, a certain vacant depth is reserved in the groove and is used for embedding a fixed end of a brick; then the hot surface of the wall body (1 b) of the cast iron/cast steel cooling wall is fully covered and inlaid with bricks.
The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The novel cooling wall equipment is characterized by comprising a cast iron or cast steel cooling wall body; a U-shaped straight water pipe is integrally cast in the wall body; a groove is integrally cast on one side of the wall body, and a snake-shaped water-cooling copper pipe is arranged in the groove; a wall body hot surface protective layer is arranged on the heating surface of the wall body; the wall body hot surface protection layer is in heat conduction connection with the snakelike water-cooling copper pipe.
2. The novel stave cooler installation of claim 1 wherein said serpentine copper water cooled tube is secured within said groove by a castable material, said castable material protruding from said groove to form a protective layer on a hot side of a wall of said cast iron/cast steel stave.
3. The novel stave cooler of claim 1 wherein the serpentine copper water-cooled tube is secured in the groove by a castable material, and wherein the heated surface of the stave is provided with an insert block, the inner side of the insert block being disposed in the groove and abutting against the castable material.
4. The preparation method of the novel cooling wall device is characterized by comprising the following steps:
preparing a cast iron or cast steel cooling wall body, and integrally casting a straight-through water pipe in the wall body; a groove is integrally cast on one side of the wall body;
preparing a snakelike water-cooling copper pipe;
putting the manufactured snake-shaped water-cooling copper pipe into a groove of a cast iron/cast steel cooling wall body;
the snakelike water-cooling copper pipe is fixed in the groove by using a material with excellent heat-conducting property.
5. The method for manufacturing a novel stave cooler according to claim 4 wherein the step of fixing the serpentine water-cooled copper pipe in the groove with a material having excellent heat conductivity comprises: and pouring materials with excellent heat conduction performance, wear resistance and erosion resistance are selected to be poured on the hot surface of the cast iron/cast steel cooling wall body (1 b) together with the groove to form a hot surface protective layer of the cast iron/cast steel cooling wall body (1 b).
6. The method for manufacturing a novel stave cooler according to claim 4 wherein the step of fixing the serpentine water-cooled copper pipe in the groove with a material having excellent heat conductivity comprises: fixing the snakelike water-cooling copper pipe in the groove by using a pouring material with excellent heat conducting property and embedding the snakelike water-cooling copper pipe in the groove; then the hot surface of the wall body (1 b) of the cast iron/cast steel cooling wall is fully covered and inlaid with bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211411871.3A CN115612771A (en) | 2022-11-11 | 2022-11-11 | Novel cooling wall equipment and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211411871.3A CN115612771A (en) | 2022-11-11 | 2022-11-11 | Novel cooling wall equipment and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115612771A true CN115612771A (en) | 2023-01-17 |
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ID=84878851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211411871.3A Pending CN115612771A (en) | 2022-11-11 | 2022-11-11 | Novel cooling wall equipment and preparation method thereof |
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| Country | Link |
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| CN (1) | CN115612771A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561501A (en) * | 2022-01-21 | 2022-05-31 | 中冶华天工程技术有限公司 | Blast furnace cooling wall with enhanced cooling |
| CN115094176A (en) * | 2022-07-20 | 2022-09-23 | 中冶华天工程技术有限公司 | Reinforced cooling wall for furnace from furnace bosh to lower part of furnace body |
-
2022
- 2022-11-11 CN CN202211411871.3A patent/CN115612771A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561501A (en) * | 2022-01-21 | 2022-05-31 | 中冶华天工程技术有限公司 | Blast furnace cooling wall with enhanced cooling |
| CN115094176A (en) * | 2022-07-20 | 2022-09-23 | 中冶华天工程技术有限公司 | Reinforced cooling wall for furnace from furnace bosh to lower part of furnace body |
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