CN204490904U - Blast furnace banking structure - Google Patents
Blast furnace banking structure Download PDFInfo
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- CN204490904U CN204490904U CN201520060381.2U CN201520060381U CN204490904U CN 204490904 U CN204490904 U CN 204490904U CN 201520060381 U CN201520060381 U CN 201520060381U CN 204490904 U CN204490904 U CN 204490904U
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Abstract
The utility model discloses blast furnace banking structure, comprise blast-furnace body, be embedded with in the furnace wall of blast-furnace body be communicated with in stove with the tuyere case outside stove, yellow sand layer, hydrous taphole loam layer and seal oil layer is disposed with from the inside to the outside in tuyere case, the thickness of described yellow sand layer is 500-600mm, the thickness of described hydrous taphole loam layer is 300-400mm, and the thickness of described seal oil layer is 10-20mm, and the distance between the outer side of seal oil layer and tuyere case outer is 50-60mm.The utility model has the advantages that: to the good sealing effect of tuyere case, improve stewing stove effect, the air that effectively prevent between the stewing campaign outside State of Blast Furnace enters in stove, and then substantially reduces the loss of coke in State of Blast Furnace, also reduce the difficulty of blow-on simultaneously, improve blow-on success ratio.
Description
Technical field
The utility model relates to blast furnace banking structure.
Background technology
In Metal smelting industry, the structure of smelting blast furnace is: comprise blast-furnace body, be embedded with in the furnace wall of blast-furnace body be communicated with in State of Blast Furnace with the tuyere case (tuyere case can reach 1.2-1.5 rice) outside stove.When blast furnace works, first furnace charge and coke are inserted in blast furnace, then air is sent in State of Blast Furnace through tuyere case by air-supply apparatus of blast furnace, carbon at high temperature in coke burns with the oxygen in the air passed in stove and generates carbon monoxide and hydrogen, carbon monoxide and hydrogen in stove in uphill process by the Fe3+ reduction in furnace charge out, thus generate smelting molten iron.But enterprise is subject to the impact of the factor such as profit and fund, blast furnace can be in end-of-life state unavoidably, at this moment just need to carry out damping down and stewing stove to blast furnace, namely damping down stops blowing in State of Blast Furnace, and stewing stove is then sealed up by the tuyere case of the blast furnace being filled with furnace charge and coke (coke is piled up and reached as high as 20 meters in blast furnace) in advance.But it is poor to the sealing effectiveness of tuyere case at present, air outside blast furnace still easily enters blast furnace, air understands the coke in roasting kiln after entering the blast furnace of stopping production, in between the stewing campaign of 10-15 days, the decline of rolling off the production line of coke can reach 2-3m, considerably increase coke consume, and a large amount of slag deposition of iron produced after coke burning can increase again the difficulty of blow-on in blast-furnace body.
Utility model content
The purpose of this utility model is to provide a kind of blast furnace banking structure of the good sealing effect to tuyere case.
For achieving the above object, the utility model have employed following technical scheme: described blast furnace banking structure, comprise: blast-furnace body, be embedded with in the furnace wall of blast-furnace body be communicated with in stove with the tuyere case outside stove, yellow sand layer, hydrous taphole loam layer and seal oil layer is disposed with from the inside to the outside in tuyere case, the thickness of described yellow sand layer is 500-600mm, the thickness of described hydrous taphole loam layer is 300-400mm, the thickness of described seal oil layer is 10-20mm, and the distance between the outer side of seal oil layer and tuyere case outer is 50-60mm.
Further, aforesaid blast furnace banking structure, wherein: the thickness of described yellow sand layer is 550mm.
Further, aforesaid blast furnace banking structure, wherein: the thickness of described hydrous taphole loam layer is 350mm.
Further, aforesaid blast furnace banking structure, wherein: the thickness of described seal oil layer is 15mm.
Further, aforesaid blast furnace banking structure, wherein: the distance between the outer side of described seal oil layer and tuyere case outer is 55mm.
Further, aforesaid blast furnace banking structure, wherein: described seal oil layer is made up of lime base grease fat.
By the enforcement of technique scheme, the beneficial effects of the utility model are: to the good sealing effect of tuyere case, improve stewing stove effect, the air that effectively prevent between the stewing campaign outside State of Blast Furnace enters in stove, and then substantially reduce the loss of coke in State of Blast Furnace, also reduce the difficulty of blow-on simultaneously, improve blow-on success ratio.
Accompanying drawing explanation
Fig. 1 is the structural representation of blast furnace banking structure described in the utility model.
Fig. 2 is the enlarged diagram at the H position shown in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, described blast furnace banking structure, comprise blast-furnace body 2, be embedded with in the furnace wall of blast-furnace body 2 be communicated with in stove with the tuyere case 1 outside stove, yellow sand layer 3, hydrous taphole loam layer 4 and seal oil layer 5 is disposed with from the inside to the outside in tuyere case 1, the thickness d of described yellow sand layer 3 is 500-600mm, the thickness c of described hydrous taphole loam layer 4 is 300-400mm, the thickness b of described seal oil layer 5 is 10-20mm, and the distance a between the outer side of seal oil layer 5 and tuyere case outer is 50-60mm; In the present embodiment, the thickness d of described yellow sand layer 3 is 550mm, the yellow sand layer 3 that this thickness is arranged stewing stove better effects if, enterprise's use cost low; In the present embodiment, the thickness c of described hydrous taphole loam layer 4 is 350mm, and what this thickness was arranged has the stewing stove better effects if of bubble mud layer 4, enterprise's use cost low; In the present embodiment, the thickness b of described seal oil layer 5 is 15mm, and the stewing stove better effects if of the seal oil layer 5 that this thickness is arranged, enterprise's use cost are low; In the present embodiment, the distance a between the outer side of described seal oil layer 5 and tuyere case 1 outer is 55mm, and the stewing stove better effects if that this distance is arranged, enterprise's use cost are low; In the present embodiment, described seal oil layer is made up of lime base grease fat, and the cost of such lubricating oil is lower, and then greatly reduces the use cost of enterprise;
Principle of work of the present utility model is as follows: first blocked up by yellow sand in inlet air muzzle 1, until form the yellow sand layer 3 that the thickness d be made up of yellow sand is 550mm, then continue to block up into hydrous taphole loam in the outside of yellow sand layer 3, until the outside of yellow sand layer 3 formed by the thickness c be made up of water stemming be 350mm have bubble mud layer 4, then uniform application lime base grease fat on the outer side having bubble mud layer 4, until form the seal oil layer 5 that the thickness b be made up of lime base grease fat is 15mm in the outside by bubble mud layer 4, now, distance a between the outer side of seal oil layer 5 and tuyere case 1 outer is 55mm, the sealing to tuyere cover of blast furnace 1 is just completed by aforesaid operations, the advantage of this blast furnace banking structure is: to the good sealing effect of tuyere case, improve stewing stove effect, the air that effectively prevent between the stewing campaign outside State of Blast Furnace enters in stove, in between the stewing campaign of 10-15 days, rolling off the production line of coke only have dropped about 0.5 meter, substantially reduce the loss of coke in State of Blast Furnace, also reduce the difficulty of blow-on simultaneously, improve blow-on success ratio.
Claims (6)
1. blast furnace banking structure, comprise: blast-furnace body, be embedded with in the furnace wall of blast-furnace body be communicated with in stove with the tuyere case outside stove, it is characterized in that: in tuyere case, be disposed with yellow sand layer, hydrous taphole loam layer and seal oil layer from the inside to the outside, the thickness of described yellow sand layer is 500-600mm, the thickness of described hydrous taphole loam layer is 300-400mm, and the thickness of described seal oil layer is 10-20mm, and the distance between the outer side of seal oil layer and tuyere case outer is 50-60mm.
2. blast furnace banking structure according to claim 1, is characterized in that: the thickness of described yellow sand layer is 550mm.
3. blast furnace banking structure according to claim 1, is characterized in that: the thickness of described hydrous taphole loam layer is 350mm.
4. blast furnace banking structure according to claim 1, is characterized in that: the thickness of described seal oil layer is 15mm.
5. blast furnace banking structure according to claim 1, is characterized in that: the distance between the outer side of described seal oil layer and tuyere case outer is 55mm.
6. blast furnace banking structure according to claim 1, is characterized in that: described seal oil layer is made up of lime base grease fat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060381.2U CN204490904U (en) | 2015-01-29 | 2015-01-29 | Blast furnace banking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060381.2U CN204490904U (en) | 2015-01-29 | 2015-01-29 | Blast furnace banking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204490904U true CN204490904U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520060381.2U Active CN204490904U (en) | 2015-01-29 | 2015-01-29 | Blast furnace banking structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593535A (en) * | 2015-01-29 | 2015-05-06 | 江苏永钢集团有限公司 | Blast furnace banking structure |
| CN110964868A (en) * | 2019-12-24 | 2020-04-07 | 攀钢集团西昌钢钒有限公司 | Air port ring manufacturing mold and air port plug |
-
2015
- 2015-01-29 CN CN201520060381.2U patent/CN204490904U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593535A (en) * | 2015-01-29 | 2015-05-06 | 江苏永钢集团有限公司 | Blast furnace banking structure |
| CN110964868A (en) * | 2019-12-24 | 2020-04-07 | 攀钢集团西昌钢钒有限公司 | Air port ring manufacturing mold and air port plug |
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