CN202482335U - Cast iron cooling wall used for small and medium-sized blast furnaces - Google Patents
Cast iron cooling wall used for small and medium-sized blast furnaces Download PDFInfo
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- CN202482335U CN202482335U CN2012201216298U CN201220121629U CN202482335U CN 202482335 U CN202482335 U CN 202482335U CN 2012201216298 U CN2012201216298 U CN 2012201216298U CN 201220121629 U CN201220121629 U CN 201220121629U CN 202482335 U CN202482335 U CN 202482335U
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Abstract
The utility model relates to a blast furnace cooling wall, and in particular relates to a cast iron cooling wall used for small and medium-sized blast furnaces, which is mainly applied at the lower parts of a furnace bosh to the furnace body of the medium-sized blast furnaces with thin-wall furnace linings. The cast iron cooling wall comprises a cooling wall body and a firebrick lining, two layers of cooling water pipes are arranged in the cooling wall body and at least provided with a water inlet and a water outlet, the cooling wall body is made of spheroidal graphite cast iron, and the firebrick linings are inlaid on a heating surface of the cooling wall. The structure that the two layers of cooling snake-shaped water pipes are arranged in the cooling wall body and the firebrick linings of 180-230mm are inlaid on the heating surface of the cooling wall is adopted, thus not only ensuring enough cooling strength, and meeting the cooling effect of the medium-sized blast furnaces with thin-wall furnace linings, but also being capable of avoiding the problem that the combined position of cooling walls made of different materials is weak when a copper cooling wall is in use, effectively ensuring the stability of operating furnace models, improving the condition of the blast furnace obviously, being stable and smooth for a long time, and greatly lowering the investment cost.
Description
Technical field
The utility model relates to a kind of cooling stave, relates in particular to a kind of cast-iron cooling wall that is used for middle-size and small-size thin-skinned lining blast furnace.
Background technology
Cooling stave is the important water-cooled element of thin-skinned lining blast furnace, and according to the difference of making material, blast furnace cooling stave can be divided into three types of cast-iron cooling wall, steel cooling wall and copper cooling walls.
But no matter be steel cooling wall or copper cooling wall; Cost is high, and is not easy to merge with the cast iron wall of blast furnace, also is difficult on middle-size and small-size thin-skinned lining blast furnace, promote the use of; Though cast-iron cooling wall also has a lot of shortcomings, but still be the optimal selection of middle-size and small-size thin-skinned lining blast furnace.
The characteristics of the cooling stave of thin-skinned lining are that liner is very thin, therefore in actual production, even liner is etched; Type changes still little in it; Type is exactly the interior type of operation of blast furnace generation stove labour basically in the design, and this reduces working of a furnace fluctuation for stablizing the daily production of blast furnace; Keep smooth operation of furnace, and it is significant to reach the index of favorable and stable.But blast furnace stack bottom, furnace bosh, bosh are the thermal load concentration zones; Need to strengthen cooling in time heat is taken away; At present big blast furnace adopts thin-skinned lining to add the mode of copper cooling wall more; And because the copper cooling wall price is ten times more than of cast-iron cooling wall, so small furnace adopts the structure of heavy wall furnace lining+cast-iron cooling wall to reach the purpose of cooling off key position and practicing thrift cost more.But the heavy wall furnace lining is compared with thin-skinned lining, and the operation type of furnace changes in furnace life greatly in a generation, has a strong impact on blast furnace index and stability.
The utility model content
The utility model technical problem to be solved provides a kind of cast-iron cooling wall that is used for medium and small blast furnace, overcomes cast-iron cooling wall thick furnace lining need be set, and the copper cooling wall cost is high, and the defective of the easy fracture of copper cooling wall and cast-iron cooling wall junction.
The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of cast-iron cooling wall that is used for medium and small blast furnace; Comprise cooling stave body and firebrick lining; In the said cooling stave body two-layer water-cooled tube is set; Said two-layer water-cooled tube all is provided with at least one water-in and water outlet, and said cooling stave body is processed by spheroidal graphite cast iron, and said cooling stave body hot side is inlayed refractory brick.
The beneficial effect of the utility model is: owing in the cooling stave body, be provided with two-layer snakelike water-cooled tube; Adopt this ductile iron cooling stave to add the thin-skinned lining structure of refractory brick; Both can guarantee enough cooling intensity, satisfy the cooling performance of middle-size and small-size thin-skinned lining blast furnace key position, can avoid the weak problem of copper cooling wall and cast-iron cooling wall junction again; Can effectively guarantee to operate the stable of the type of furnace; Conditions of blast furnace is clearly better, and direct motion steady in a long-term, reduces cost of investment greatly.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, the water-cooled tube of the cast-iron cooling wall of the medium and small blast furnace that is set forth in is snakelike water-cooled tube.
Further, said firebrick lining is the 180-230 millimeter.
Further, so the distance of the pipe between the two-layer water-cooled tube is 80 millimeters～120 millimeters, said water-cooled tube radius is 25 millimeters～45 millimeters.
Further, the distance between the said two-layer water-cooled tube is 100mm, and said water-cooled tube radius is 35mm.
Further beneficial effect is: the utility model water-cooled tube cooling water inflow is big, and good cooling results need not be provided with thick furnace lining, satisfies the production needs, and has overcome the defective that thick furnace lining has a strong impact on blast furnace index and stability.
Description of drawings
Fig. 1 is used for the cast-iron cooling wall front view of medium and small blast furnace for the utility model;
Fig. 2 is that the C of Fig. 1 is to synoptic diagram;
Fig. 3 is that the B of Fig. 1 is to synoptic diagram;
Fig. 4 is the A schematic views of Fig. 1;
In the accompanying drawing, the list of parts of each label representative is following:
1, cooling stave body, 2, the water inlet pipe of second layer water-cooled tube, 3, the water inlet pipe of the first layer water-cooled tube, 4, the rising pipe of second layer water-cooled tube, 5, the rising pipe of the first layer water-cooled tube.
Embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 comprise cooling stave body 1; Be provided with water-cooled tube 3,5 in the said cooling stave body 1; Said water-cooled tube is two-layer, comprises the first layer water-cooled tube 3,5 and second layer water-cooled tube 2.4, and said the first layer water-cooled tube 3,5 and second layer water-cooled tube 2,4 all are provided with a water-in and a water outlet; Said cooling stave body is processed by spheroidal graphite cast iron, and said cooling stave body hot side is inlayed 180-230 millimeter firebrick lining.The said water-cooled tube that is used for the cast-iron cooling wall of medium and small blast furnace is snakelike water-cooled tube, and the distance between the said two-layer water-cooled tube is 100mm, and said water-cooled tube radius is 35mm.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. cast-iron cooling wall that is used for medium and small blast furnace; Comprise cooling stave body and firebrick lining; It is characterized in that in the said cooling stave body two-layer water-cooled tube is set, said two-layer water-cooled tube all is provided with at least one water-in and water outlet; Said cooling stave body is processed by spheroidal graphite cast iron, and said cooling stave body hot side is inlayed firebrick lining.
2. according to the said cast-iron cooling wall that is used for medium and small blast furnace of claim 1, it is characterized in that said water-cooled tube is snakelike water-cooled tube.
3. according to the said cast-iron cooling wall that is used for medium and small blast furnace of claim 1, it is characterized in that said firebrick lining is the 180-230 millimeter.
4. according to claim 1 or the 2 or 3 said cast-iron cooling walls that are used for medium and small blast furnace, it is characterized in that the pipe between the said two-layer water-cooled tube is apart from being 80 millimeters～120 millimeters, said water-cooled tube radius is 25 millimeters～45 millimeters.
5. according to the said cast-iron cooling wall that is used for medium and small blast furnace of claim 4, it is characterized in that the pipe between the said two-layer water-cooled tube is apart from being 100mm, said water-cooled tube radius is 35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201216298U CN202482335U (en) | 2012-03-27 | 2012-03-27 | Cast iron cooling wall used for small and medium-sized blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201216298U CN202482335U (en) | 2012-03-27 | 2012-03-27 | Cast iron cooling wall used for small and medium-sized blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202482335U true CN202482335U (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201216298U Expired - Fee Related CN202482335U (en) | 2012-03-27 | 2012-03-27 | Cast iron cooling wall used for small and medium-sized blast furnaces |
Country Status (1)
| Country | Link |
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| CN (1) | CN202482335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192074A1 (en) * | 2018-04-03 | 2019-10-10 | 莱芜市天铭冶金设备有限公司 | High-efficient long-life pre-perforating pipe cast iron cooling wall and manufacturing process therefor |
-
2012
- 2012-03-27 CN CN2012201216298U patent/CN202482335U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192074A1 (en) * | 2018-04-03 | 2019-10-10 | 莱芜市天铭冶金设备有限公司 | High-efficient long-life pre-perforating pipe cast iron cooling wall and manufacturing process therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |