CN203396239U - Submerged arc furnace lining with vertically laid large carbon brick - Google Patents
Submerged arc furnace lining with vertically laid large carbon brick Download PDFInfo
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- CN203396239U CN203396239U CN201320296272.1U CN201320296272U CN203396239U CN 203396239 U CN203396239 U CN 203396239U CN 201320296272 U CN201320296272 U CN 201320296272U CN 203396239 U CN203396239 U CN 203396239U
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Abstract
The utility model discloses a submerged arc furnace lining with a vertically laid large carbon brick. The submerged arc furnace lining comprises a furnace bottom and a hearth; a phosphatic fireproof concrete layer and a high aluminum brick layer are successively arranged at the furnace bottom from top to bottom; a carbon ramming material layer or a low temperature thick seam pasting layer is arranged on the high aluminum brick layer; the vertically laid large carbon brick is arranged on the inner wall of the hearth; and the height of the vertically laid large carbon brick is 692 mm or 1200 mm. According to the utility model, multiple layers of small annular carbon bricks in a hearth in the prior art are replaced by the vertically laid large carbon brick, so brick work joints are greatly decreased, air-tightness and overall intensity of the hearth of a submerged arc furnace are improved, and smelting intensity of a reaction zone is effectively increased. A firm slag iron housing protective layer can be formed away from electrodes in a weld crater to effectively protect the furnace wall, so the carbon brick is adequately protected from erosion by high temperature gas, mechanical and chemical erosion resistant ability are enhanced, and service lifetime of the submerged arc furnace lining can be effectively prolonged.
Description
Technical field
The utility model relates to a kind of mineral hot furnace, is specifically related to a kind of mineral hot furnace furnace lining structure.
Background technology
Which kind of refractory material no matter high temperature, mechanical erosion and chemical erosion effect due to mineral hot furnace inside, adopt, and the damage of furnace lining is all difficult to avoid.Modern mineral hot furnace electric furnace development trend is to increase reaction zone rate of driving, and the temperature of cupola well center and furnace bottom center is to enhance productivity, and this is just harsher to the condition of work of cupola well brick fuel.The condition of work of many furnace lining structures has approached or has surpassed the performance range that refractory material may bear, and simple material improvement cannot adapt to the requirement of smelting process development.The ferroalloy industry turned to from structure and adopted vigorous measures from simple pursuit material improvement the research of furnace lining material in the last few years.
As shown in Figure 1, existing industrial silicon furnace furnace lining comprises the fire-resistant concrete 1 of phosphate, undercloak 4, high aluminium brick layer 5, microporous carbon brick layer 7 and carbon ramming mass layer 2, at hearth wall, is provided with two-layer fritter brick fuel 6; As shown in Figure 2, existing industrial silicomanganese stove furnace lining comprises the fire-resistant concrete 1 of phosphate, high aluminium brick layer 5, schungite brick fuel layer 9 and low temperature tailor-tacking paste layer 10, at hearth wall, is provided with three layers of fritters annular brick fuel 6.The size of these cupola wells annular fritter brick fuels 6 is little and piece number is many, and when cupola well is 2 layers, cylinder ring shape fritter brick fuel just has 100 polyliths; Cupola well is that 3～4 layers of cylinder ring shape fritter brick fuel just have 200～300 polyliths.So many annular brick fuels have naturally just formed a lot of brickwork joints after building by laying bricks or stones.
High temperature kiln lining Design is extremely emphasized the globality of furnace lining structure.For mineral hot furnace, brickwork joint is the main thoroughfare of motlten metal, slag, alkali metal, coal gas infiltration furnace lining, and the infiltration of infiltrate is first from brickwork joint, infiltrate and cause the efflorescence of brick body cracking, is the major reason that final furnace lining damages.
The temperature in the ferroalloy Shi， melting reaction districts such as mine heat furnace smelting silicon, manganese, nickel, chromium can be up to 1200 ~ 1800 ℃, and what have has also reached more than 2100 ℃.Although carbon line has in mineral hot furnace is produced, refractoriness is high, good thermal shock, elevated temperature strength are high, be not the advantages such as ferroalloy and slag infiltration.But its shortcoming is oxidizable.Except brick fuel surface, high-temperature gas is also entered in brick and is reacted with charcoal by the gap of building by laying bricks or stones of brick fuel, causes brickwork joint efflorescence, peels off, and has a strong impact on the lining stove life-span.
Metal bath in mineral hot furnace production process (or slag) is invaded inner from brick fuel brickwork joint, and reacts with it and cause the erosion to brick fuel.For example the unsaturated ferrophosphorus of carbon content or ferromanganese, when invading brick fuel brickwork joint, make brick fuel produce thermal stress and " nibbling phenomenon ", makes brickwork joint expansion, brick body opening gap strengthen and crack; Even, because of buoyancy (ferroalloy density is all higher than brick fuel density), causes and be etched brick body floating and damage furnace lining.
Summary of the invention
The technical problems to be solved in the utility model is that mineral hot furnace cupola well brickwork joint causes the oxidizable erosion of brick fuel more, and a kind of mineral hot furnace furnace lining with laid on end bulk brick fuel that can reduce brickwork joint, reduce the oxidized erosion of brick fuel is provided.
The technical solution of the utility model realizes in the following manner: a kind of mineral hot furnace furnace lining with laid on end bulk brick fuel, comprise furnace bottom and cupola well, furnace bottom is provided with the fire-resistant concrete of phosphate, high aluminium brick layer from bottom to up successively, high aluminium brick layer is provided with carbon ramming mass layer or low temperature tailor-tacking is stuck with paste layer, described hearth wall is provided with laid on end bulk brick fuel, and the height of laid on end bulk brick fuel is 692 or 1200mm.
Between the fire-resistant concrete of described phosphate, high aluminium brick layer, be provided with undercloak, between high aluminium brick layer, carbon ramming mass layer, be provided with microporous carbon brick layer, the height of laid on end bulk brick fuel is 1200mm.
Described high aluminium brick layer and low temperature tailor-tacking are stuck with paste between layer and are provided with schungite brick fuel layer, and the height of laid on end bulk brick fuel is 692mm.
The utility model has been removed the multilayer fritter annular brick fuel of cupola well in prior art, uses one deck laid on end bulk brick fuel instead, has greatly reduced brickwork joint quantity, has improved tightness and the bulk strength of mineral hot furnace cupola well, has effectively increased reaction zone rate of driving.Make molten bath form firm " slag iron-clad " protective layer away from electrode part potential energy, effectively to protect furnace wall, greatly reduced being corroded by high-temperature gas of brick fuel, strengthened the ability of resisting mechanical erosion and chemical erosion, can effectively extend mineral hot furnace lining durability.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing industrial silicon furnace furnace lining.
Fig. 2 is the structural representation of existing industrial silicomanganese stove furnace lining.
Fig. 3 is the structural representation of industrial silicon furnace furnace lining in the utility model.
Fig. 4 is the structural representation of industrial silicomanganese stove furnace lining in the utility model.
The specific embodiment
Embodiment 1: as shown in Figure 3, a kind of mineral hot furnace furnace lining with laid on end bulk brick fuel, comprise furnace bottom and cupola well, furnace bottom is provided with the fire-resistant concrete 1 of phosphate, high aluminium brick layer 5 and carbon ramming mass layer 2 from bottom to up successively, between the fire-resistant concrete 1 of phosphate, high aluminium brick layer 5, be provided with undercloak 4, between high aluminium brick layer 5, carbon ramming mass layer 2, be provided with microporous carbon brick layer 7, described hearth wall is provided with laid on end bulk brick fuel 8, and the height of laid on end bulk brick fuel 8 is 1200mm.
Embodiment 2: as shown in Figure 4, a kind of mineral hot furnace furnace lining with laid on end bulk brick fuel, comprise furnace bottom and cupola well, furnace bottom is provided with successively from bottom to up the fire-resistant concrete 1 of phosphate, high aluminium brick layer 5 and low temperature tailor-tacking and sticks with paste layer 10, high aluminium brick layer 5 and low temperature tailor-tacking are stuck with paste between layer 10 and are provided with schungite brick fuel layer 9, described hearth wall is provided with laid on end bulk brick fuel 8, and the height of bulk brick fuel 8 is 692mm.
Claims (3)
1. the mineral hot furnace furnace lining with laid on end bulk brick fuel, comprise furnace bottom and cupola well, furnace bottom is provided with the fire-resistant concrete of phosphate (1), high aluminium brick layer (5) from bottom to up successively, high aluminium brick layer (5) is provided with carbon ramming mass layer (2) or low temperature tailor-tacking is stuck with paste layer (10), it is characterized in that: described hearth wall is provided with laid on end bulk brick fuel (8), the height of laid on end bulk brick fuel (8) is 692 or 1200mm.
2. the mineral hot furnace furnace lining with laid on end bulk brick fuel according to claim 1, it is characterized in that: between the fire-resistant concrete of described phosphate (1), high aluminium brick layer (5), be provided with undercloak (4), between high aluminium brick layer (5), carbon ramming mass layer (2), be provided with microporous carbon brick layer (7), the height of laid on end bulk brick fuel (8) is 1200mm.
3. the mineral hot furnace furnace lining with laid on end bulk brick fuel according to claim 1, is characterized in that: described high aluminium brick layer (5) and low temperature tailor-tacking are stuck with paste between layer (10) and be provided with schungite brick fuel layer (9), and the height of laid on end bulk brick fuel (8) is 692mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320296272.1U CN203396239U (en) | 2013-05-28 | 2013-05-28 | Submerged arc furnace lining with vertically laid large carbon brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320296272.1U CN203396239U (en) | 2013-05-28 | 2013-05-28 | Submerged arc furnace lining with vertically laid large carbon brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396239U true CN203396239U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320296272.1U Expired - Fee Related CN203396239U (en) | 2013-05-28 | 2013-05-28 | Submerged arc furnace lining with vertically laid large carbon brick |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762491A (en) * | 2015-04-16 | 2015-07-08 | 湖南水口山有色金属集团有限公司 | Oxygen side-blowing smelting furnace hearth and masonry method thereof |
| CN106288806A (en) * | 2015-05-11 | 2017-01-04 | 中国恩菲工程技术有限公司 | Metallurgical furnace |
| CN108050832A (en) * | 2017-12-16 | 2018-05-18 | 江苏巨盈节能环保科技有限公司 | Energy-saving electrical furnace system |
| CN109959261A (en) * | 2019-04-19 | 2019-07-02 | 鲁山县方圆工程技术有限公司 | A kind of ferronickel electric furnace charcoal composite lining structure |
-
2013
- 2013-05-28 CN CN201320296272.1U patent/CN203396239U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762491A (en) * | 2015-04-16 | 2015-07-08 | 湖南水口山有色金属集团有限公司 | Oxygen side-blowing smelting furnace hearth and masonry method thereof |
| CN106288806A (en) * | 2015-05-11 | 2017-01-04 | 中国恩菲工程技术有限公司 | Metallurgical furnace |
| CN106288806B (en) * | 2015-05-11 | 2018-09-11 | 中国恩菲工程技术有限公司 | metallurgical furnace |
| CN108050832A (en) * | 2017-12-16 | 2018-05-18 | 江苏巨盈节能环保科技有限公司 | Energy-saving electrical furnace system |
| CN109959261A (en) * | 2019-04-19 | 2019-07-02 | 鲁山县方圆工程技术有限公司 | A kind of ferronickel electric furnace charcoal composite lining structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Pingdingshan City Lushan Yaxing Carbon Material Co., Ltd. Assignor: Xiao Wei|Li Jinpo Contract record no.: 2014410000083 Denomination of utility model: Mineral hot furnace furnace lining with laid on end bulk brick fuel Granted publication date: 20140115 License type: Exclusive License Record date: 20140826 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180503 Address after: 467300 the middle section of Xinggong Road, North District, Lushan Mountain County, Pingdingshan, Henan Patentee after: Lushan Mountain Star Technology Development Co. Ltd. Address before: 467300 No. 10, 123 East Renmin Road, Chengguan Town, Lushan Mountain County, Pingdingshan, Henan. Co-patentee before: Xiao Wei Patentee before: Li Jinpo |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20210528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |