CN203980901U - Titanium slag furnace superintendent longevity liner - Google Patents
Titanium slag furnace superintendent longevity liner Download PDFInfo
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- CN203980901U CN203980901U CN201420448058.8U CN201420448058U CN203980901U CN 203980901 U CN203980901 U CN 203980901U CN 201420448058 U CN201420448058 U CN 201420448058U CN 203980901 U CN203980901 U CN 203980901U
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Abstract
The utility model is disclosed is the titanium slag furnace superintendent longevity liner of a kind of longer service life of high titanium slag field of smelting, this liner is divided into burner hearth and furnace bottom, burner hearth is provided with slag notch and tapping hole, between the magnesia brick layer of furnace bottom and argillic horizon, be provided with magnesia layer, magnesia layer is because of the larger expansion that can compensate furnace bottom magnesia brick in space, furnace bottom magnesia brick layer and argillic horizon adopt layer brick body to build according to odd even layer mode that center line intersects by laying bricks or stones and build by laying bricks or stones and form, stability and the erosion resisting of furnace bottom are improved, burner hearth slag notch and tapping hole are around the places of the most easily being corroded by metal bath, adopt masonry construction that highly purified magnesia brick and craspedodrome brick combine with double buckle modular tile can effectively slow down the erosion of burner hearth.The beneficial effects of the utility model are: rational in infrastructure, can extend to a great extent service life of titanium slag inner lining of furnace, and reduce maintenance cost.
Description
Technical field
The present invention relates to high titanium slag field of smelting, especially a kind of titanium slag inner lining of furnace of longer service life.
Background technology
Titanium slag stove is the ore deposit hot type electric arc furnaces that is used for producing rich titanium material in nonferrous metallurgy industry, titanium slag stove is divided into furnace shell and inner lining of furnace, furnace shell is generally steel plate, inner lining of furnace is generally by magnesia fire-protecting wall, high-alumina refractory brick or carbon refractory brick are built by laying bricks or stones and are formed, titanium slag is produced need complete smelting process under the high temperature of 1600～1800 DEG C, because titanium slag melt has high chemism, almost can have an effect with all metals and nonmetallic materials, it can corrode common refractory material soon, on the other hand, because of the thermal coefficient of expansion of magnesia fire-protecting wall very large, easily there is the phenomenon of furnace shell " bulge " distortion.
At present, what the overhaul life of titanium slag electric furnace body of heater was the longest is 3～4 years, and short only has half a year, body of heater damage main manifestations be furnace wall particularly near the erosion at slag notch position, burn-through of furnace hearth and furnace shell are bursting at the collision etc.
Utility model content
Short service life for overcoming existing titanium slag inner lining of furnace, the high deficiency of recondition expense, technical problem to be solved in the utility model is: a kind of more reasonable structure is provided, and longer service life obtains titanium slag inner lining of furnace.
The utility model solves the technical scheme that its technical problem adopts: titanium slag furnace superintendent longevity liner, comprise burner hearth and furnace bottom, burner hearth is provided with slag notch and tapping hole, furnace bottom is divided into magnesia brick layer and argillic horizon from top to bottom, between described magnesia brick layer and argillic horizon, be provided with magnesia layer, described magnesia brick layer and argillic horizon form by layer brick body and the center line of building by laying bricks or stones of layer brick body odd even layer intersects mutually.
The argillic horizon of described furnace bottom is provided with ventilating opening.
Described burner hearth is divided into upper and lower two parts, and average charge level is high aluminium brick layer above, and average charge level is magnesia brick layer below.
The magnesia brick layer that described lower furnace portion is divided is divided into inside and outside two parts, and burner hearth internal layer is that purity is 95% magnesia brick, the magnesia brick that burner hearth skin is 91% for purity.
It is that 96%～98% magnesia brick is built by laying bricks or stones that described tapping hole and slag notch region all adopt purity.
Described tapping hole and slag notch region are combined to build by laying bricks or stones by straight shape brick and double buckle modular tile and form, and through hole is left in centre, and double buckle modular tile is positioned at the sandwich layer position of outlet second half section, and all the other regions are craspedodrome brick.
Further, be provided with flint clay layer at furnace bottom and burner hearth outside.
Further, be provided with alumina silicate fibre layer in the outside of burner hearth flint clay layer.
Further, be provided with asbestos board in the outside of furnace bottom flint clay layer.
The beneficial effects of the utility model are: the magnesia layer arranging between magnesia brick layer and argillic horizon is the magnesia of building by laying bricks or stones by dry method, larger than common knotting bed of material compressibility, the expansion of energy effective compensation magnesia brick, the bottom construction of building center line arranged crosswise by laying bricks or stones of magnesia brick layer and argillic horizon odd even layer is more stable, more resistance to erosion and erosion, reasonably high-purity magnesia brick can not produce considerable influence to titanium slag, but can effectively slow down the erosion of body of heater, comprehensive above-mentioned advantage, can extend to a great extent the service life of titanium slag inner lining of furnace, reduce maintenance cost.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is partial enlarged drawing outside the utility model body of heater.
Fig. 4 is the masonry construction figure of the utility model furnace bottom odd-level.
Fig. 5 is the masonry construction figure of the utility model furnace bottom even level.
In figure, be labeled as 1-burner hearth, 2-furnace bottom, 3-slag notch, 4-tapping hole, 5-flint clay layer, 6-alumina silicate fibre layer, 7-asbestos board, 11-aluminium brick layer, 12-magnesia brick layer, 13-burner hearth skin, 14-burner hearth internal layer, 21-magnesia brick layer, 22-magnesia layer, 23-argillic horizon, 24-air vent, 31-craspedodrome brick, 32-letter buckle modular tile, 33-through hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1 and Figure 2, the utility model mainly comprises burner hearth 1 and furnace bottom 2, burner hearth 1 is provided with slag notch 3 and tapping hole 4, the plane of tapping hole is a little less than slag notch plane, between the magnesia brick layer 21 of furnace bottom 2 and argillic horizon 23, be provided with magnesia layer 22, the mode that magnesia brick layer 21 and argillic horizon 23 are intersected according to odd even layer center line by layer brick body is built by laying bricks or stones.
Producing due to titanium slag is generally to complete smelting process under the high temperature of 1600～1800 DEG C, the heat of the furnace bottom 2 of titanium slag stove is except from the heat by conduction of molten bath, the heat that also has furnace bottom power consumption to produce, so its temperature is higher, it is the most violent region of magnesian thermal expansion, between magnesia brick layer 21 and argillic horizon 23, be provided with the magnesia layer 22 that adopts dry method to build by laying bricks or stones, because the porosity of magnesia layer is high compared with magnesia brick, its retractility is larger, so can well compensate the thermal expansion of magnesia brick layer 21, thereby prevent from bursting because of expansion the situation of furnace bottom.On the other hand, furnace bottom is also subject to the souring of metal bath except being subject to high temperature and corroding, in order to strengthen stability and the corrosion resistance of furnace bottom, furnace bottom magnesia brick layer and argillic horizon all adopt layer brick body to build by laying bricks or stones according to the cross one another mode of center line of building by laying bricks or stones of odd even layer, best embodiment is as shown in Figure 4 and Figure 5, odd even layer center line differs 45 degree, and this structure can effectively prevent that metallic solution from corroding bottom of furnace body along building gap by laying bricks or stones.
Because furnace bottom is the most violent place that is heated, so for better heat radiation, on furnace bottom argillic horizon, be provided with multiple air vents 24, argillic horizon 23 retractilities on the one hand with air vent are better, can absorb the expansion of a part from magnesia brick layer, accelerate on the other hand the heat radiation of furnace bottom by the interaction energy of blower fan, thereby alleviate the thermal expansion of furnace bottom.
Burner hearth part integrated cost and durability are considered, adopt magnesia brick to build by laying bricks or stones in the burner hearth below average charge level, average charge level adopts high-alumina brick to build by laying bricks or stones above, because it is less that part more than average charge level touches the frequency of metal bath, be difficult for being etched, and high-alumina brick refractoriness is a little less than the normal smelting temperature of titanium slag, but serviceability temperature is the same with magnesia brick, so can meet melting demand, key is that its cost ratio magnesia brick is cheap, can be cost-saving.On the other hand, the magnesia brick contacting metal melt of burner hearth internal layer, and temperature is higher, and the outer field magnesia brick of burner hearth is heated relatively low, according to experience in the past, because the MgO composition in magnesia brick can affect the quality of product titanium slag, the thermal coefficient of expansion of magnesia brick is also relevant with its purity simultaneously, so when internal layer adopts the magnesia brick that purity is 95%, skin can reach a best economic and practical effect while adopting 91% magnesia brick.
Adopt 96%～98% high-purity magnesium brick masonry at slag notch 3 and tapping hole 4 places, because of the experience from the past, the place the most easily going wrong on burner hearth 1 is the region near slag notch 3 and tapping hole 4, therefore the purity that increases these two local magnesians can well improve its erosion resistant ability, in order to make its structure tightr, all adopt craspedodrome brick to build by laying bricks or stones with the mode that double buckle modular tile combines in these two places, through hole is left in centre, double buckle modular tile is positioned at the sandwich layer position of outlet second half section, and all the other regions are craspedodrome brick.Adopt this structure further to extend its service life.
As the improvement to such scheme, for burner hearth 1 and furnace bottom 2 can be limited in the time there is slight external drum, prevent that furnace shell steel plate from being burst by liner, can be at the arranged outside flint clay layer 5 of burner hearth 1 and furnace bottom 2.In the time laying flint clay, only need be flattened gently, reserved certain hole between flint clay layer 5 and argillic horizon 23, the one, play the buffering to bloating, the 2nd, can get rid of efficiently the gas in stove.
Further, for the heat exchange of better isolated burner hearth 1 and furnace bottom 2 and external environment, can on burner hearth flint clay layer outer wall, alumina silicate fibre layer 6 be set, asbestos board 7 is set on the outer wall of furnace bottom flint clay layer, because of the compressible space of aluminium silicate fiber peacekeeping asbestos board very large, and heat insulating ability is fine, so can not only well play adiabatic effect, also can effectively offset the expansion of furnace lining.
Claims (9)
1. titanium slag furnace superintendent longevity liner, comprise burner hearth (1) and furnace bottom (2), burner hearth (1) is provided with slag notch (3) and tapping hole (4), furnace bottom (2) is divided into magnesia brick layer (21) and argillic horizon (23) from top to bottom, it is characterized in that: between described magnesia brick layer (21) and argillic horizon (23), be provided with magnesia layer (22), described magnesia brick layer (21) and argillic horizon (23) form by layer brick body and the center line of building by laying bricks or stones of layer brick body odd even layer intersects mutually.
2. titanium slag furnace superintendent longevity liner as claimed in claim 1, is characterized in that: the argillic horizon (23) of described furnace bottom (2) is provided with ventilating opening (24).
3. titanium slag furnace superintendent longevity liner as claimed in claim 2, is characterized in that: described burner hearth (1) is divided into upper and lower two parts, and average charge level is high aluminium brick layer (11) above, and average charge level is magnesia brick layer (12) below.
4. titanium slag furnace superintendent longevity liner as claimed in claim 3, it is characterized in that: the magnesia brick layer (12) of the lower part of described burner hearth (1) is divided into inside and outside two parts, the magnesia brick that burner hearth internal layer (14) is 95% for purity, the magnesia brick that burner hearth skin (13) is 91% for purity.
5. titanium slag furnace superintendent longevity liner as claimed in claim 1, is characterized in that: it is that 96%～98% magnesia brick is built by laying bricks or stones that described tapping hole (4) and slag notch (3) region all adopt purity.
6. titanium slag furnace superintendent longevity liner as claimed in claim 5, it is characterized in that: described slag notch (3) and tapping hole (4) region are combined to build by laying bricks or stones by straight shape brick (31) and double buckle modular tile (32) and form, through hole (33) is left in centre, double buckle modular tile (32) is positioned at the sandwich layer position of outlet second half section, and all the other regions are craspedodrome brick (31).
7. the titanium slag furnace superintendent longevity liner as described in claim 1,2,3,4,5 or 6, is characterized in that: be provided with flint clay layer (5) at burner hearth (1) and furnace bottom (2) outside.
8. titanium slag furnace superintendent longevity liner as claimed in claim 7, is characterized in that: be provided with alumina silicate fibre layer (6) in the outside of burner hearth flint clay layer.
9. titanium slag furnace superintendent longevity liner as claimed in claim 8, is characterized in that: be provided with asbestos board (7) in the outside of furnace bottom flint clay layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448058.8U CN203980901U (en) | 2014-08-08 | 2014-08-08 | Titanium slag furnace superintendent longevity liner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420448058.8U CN203980901U (en) | 2014-08-08 | 2014-08-08 | Titanium slag furnace superintendent longevity liner |
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| CN203980901U true CN203980901U (en) | 2014-12-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610220A (en) * | 2015-10-21 | 2017-05-03 | 山东潍坊润丰化工股份有限公司 | High-corrosion-resistance smelting furnace for byproduct industrial salt |
| 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 |
| CN112833672A (en) * | 2021-01-05 | 2021-05-25 | 商都中建金马冶金化工有限公司 | Submerged arc furnace |
-
2014
- 2014-08-08 CN CN201420448058.8U patent/CN203980901U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610220A (en) * | 2015-10-21 | 2017-05-03 | 山东潍坊润丰化工股份有限公司 | High-corrosion-resistance smelting furnace for byproduct industrial salt |
| 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 |
| CN112833672A (en) * | 2021-01-05 | 2021-05-25 | 商都中建金马冶金化工有限公司 | Submerged arc furnace |
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Effective date of registration: 20160206 Address after: 617000 East Street, Panzhihua, Sichuan, No. 108 Patentee after: Design & Research Inst Co., Ltd., Panzhihua Steel & Iron Group Address before: 617000 Jiangnan Road, Panzhihua City, Sichuan Province, China, two Patentee before: Pan'gang Group Engineering Technology Co., Ltd. Patentee before: Design & Research Inst Co., Ltd., Panzhihua Steel & Iron Group |