CN202482333U - Blast furnace - Google Patents
Blast furnace Download PDFInfo
- Publication number
- CN202482333U CN202482333U CN2011205433684U CN201120543368U CN202482333U CN 202482333 U CN202482333 U CN 202482333U CN 2011205433684 U CN2011205433684 U CN 2011205433684U CN 201120543368 U CN201120543368 U CN 201120543368U CN 202482333 U CN202482333 U CN 202482333U
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- blast furnace
- furnace
- steel plate
- sealing groove
- liquid
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Abstract
Aiming to solve the technical problem that coal gas leakage exists at the bottom of the blast furnace in the prior art, the utility model discloses a blast furnace, which includes a blast furnace foundation arranged at the bottom of the blast furnace and serving as a bearing foundation of the blast furnace, a furnace bottom steel plate covered on the blast furnace foundation, a furnace shell steel plate fixed on the furnace bottom steel plate, and a sealing groove encircling the furnace shell steel plate and arranged on the blast furnace foundation. Liquid is injected in the sealing groove to encircle the furnace bottom steel plate and the furnace shell steel plate, thereby preventing the coal gas leakage of the blast furnace.
Description
Technical field
The utility model relates to industrial circle, relates in particular to a kind of blast furnace.
Background technology
Blast furnace is the major equipment that ironmaking is produced, and it has the advantage that output is big, productivity is high and cost is low, and this is that other iron smelting methods are incomparable, and the main products of blast-furnace smelting is the pig iron, also has by-product blast furnace slag and blast furnace gas.
Along with developing rapidly of Iron industry, the continually strengthening of ironmaking, blast furnace maximizes day by day; Useful volume constantly increases, and daily output pig iron amount constantly increases, and adopts high pressure furnace roof, high wind-warm syndrome, comprehensive new technology such as winding-up and robot calculator control simultaneously; Utilization coefficient improves constantly, and coke ratio constantly reduces, but significant change has taken place the blast furnace lining working conditions thereupon; It is more that reduced its work-ing life, generally has only 5-6.
Su Gang 4# blast furnace will have carried out restorative overhaul the end of the year in 2004, because previous generation's furnace life body of heater goes up, body of heater falls after rise during overhaul, and after the blast furnace opening, the phenomenon of coal gas has appearred leaking in furnace bottom.Thereby influence the blast furnace safety in production, also influence the longevity of blast furnace.The blast furnace gas that cupola well produces is seeped into furnace bottom along brickwork joint, along furnace shell and heat resisting foundation pier gap, from steel plate of furnace hearth and furnace shell weld leakage outside stove.Because the body of heater rise and fall, furnace shell and drop-bottom sealing-off make that stove is interior to be communicated with outward with stove.
At the bottom of blocking State of Blast Furnace, leak coal gas, Su Gang group has adopted and between furnace shell and cooling stave, has poured into the anhydrous method that is pressed into mud.
The utility model contriver finds that there is following technical problem at least in prior art in the process that realizes the utility model technical scheme:
Be employed in and pour into the anhydrous method that is pressed into mud between furnace shell and the cooling stave, can not solve the technical problem that furnace bottom leaks coal gas.
The utility model content
The utility model provides a kind of blast furnace, is used for solving prior art and has the technical problem of leaking coal gas at the bottom of the State of Blast Furnace.
The utility model provides following technical scheme through the embodiment among the application:
A kind of blast furnace comprises:
Blast furnace foundation is arranged on the blast furnace bottom, as the carrying basis of said blast furnace;
Steel plate of furnace hearth, covering is arranged on the said blast furnace foundation;
The furnace shell steel plate is fixedly installed on the said steel plate of furnace hearth;
Sealing groove is arranged on the said blast furnace foundation around said furnace shell steel plate, through in said sealing groove, injecting liquid, realizes said steel plate of furnace hearth and furnace shell steel plate are surrounded, and then realizes the coal gas that the said blast furnace of shutoff leaks.
Alternatively, said blast furnace also comprises:
The sealing steel plate fixedly covers on the said sealing groove, and wherein, said sealing steel plate is provided with at least one filling orifice, through said filling orifice, realizes said liquid is injected said sealing groove.
Alternatively, said blast furnace also comprises: quantity and the consistent grout valve of said at least one filling orifice are separately positioned on said at least one filling orifice.
Alternatively, said blast furnace also comprises: proofing unit is arranged in the said sealing groove, in order to detect the position of sealing fluid in the said sealing groove.
Alternatively, said blast furnace also comprises: warning device, be connected with said proofing unit, and when sealing fluid was not enough in said proofing unit detects said sealing groove, said warning device produced guard signal.
Alternatively, said liquid is specially tar or heavy oil.
Through the one or more technical schemes in the technique scheme, the utility model has following technique effect or advantage at least:
Through leaking at the bottom of the shutoff State of Blast Furnace in the process of coal gas; Adopted sealing groove has been set on blast furnace foundation; And be looped around on the furnace shell steel plate; In sealing groove, inject the technique means of tar or heavy oil then, solved the technical problem of leaking coal gas at the bottom of the State of Blast Furnace, reached blast furnace safety in production and long-lived technique effect.
Description of drawings
Fig. 1 is the furnace structure synoptic diagram among the utility model application embodiment;
Fig. 2 is a sealing partial schematic diagram at the bottom of the State of Blast Furnace among the utility model application embodiment.
Embodiment
For those skilled in the art under making the application more are expressly understood the utility model,, the utility model technical scheme is described in detail through specific embodiment below in conjunction with accompanying drawing.
Please refer to Fig. 1 and Fig. 2, a kind of blast furnace among the application embodiment comprises:
Steel plate of furnace hearth 20 covers and to be arranged on the said blast furnace foundation, and said steel plate of furnace hearth 20 is provided with certain thickness like 16mm.
Furnace shell steel plate 30 is fixedly installed on the said steel plate of furnace hearth, welds together with said steel plate of furnace hearth 20; And form a plurality of solder joints at weld, and as: 2,3; 4 etc., said furnace shell steel plate 30 is provided with certain thickness like 20mm, and plays a part to support the steelwork weight of blast furnace.
Sealing groove 40 is arranged on the said blast furnace foundation 10 around said furnace shell steel plate 30, through in said sealing groove, injecting liquid, as: tar or heavy oil, realize said steel plate of furnace hearth and furnace shell steel plate are surrounded, and then realize the coal gas of the said blast furnace leakage of shutoff.
Said blast furnace also comprises:
The sealing steel plate fixedly covers on the said sealing groove 40, and wherein, said sealing steel plate is provided with at least one, as: 2,3,4 are waited filling orifice, through said filling orifice, realize said liquid is injected said sealing groove 40.
Quantity and the consistent grout valve of said at least one filling orifice; Be separately positioned on said at least one filling orifice; As: said filling orifice is 4; And be separately positioned on the front, rear, left and right direction of said sealing steel plate, then the quantity of said grout valve also is 4, and is separately positioned on the hole of said four direction.
In said sealing groove 40, inject liquid as: when tar or heavy oil, said liquid is injected in the said sealing groove 40 through said grout valve, as: the quantity of said grout valve is 4; And said grout valve is labeled as A, B, C, D respectively, and said grout valve all is in opened condition when pouring into said liquid, and said grout valve A, B, C, D be not on same sea line; When in said 4 grout valves any one as: when injecting said liquid among the A;, said grout valve B closes the valve of said grout valve A when having said liquid to overflow, in like manner, and when said grout valve C, D have said liquid to overflow; Close the valve of said grout valve C, D; When said grout valve A, B, C, D all have said liquid to overflow, finish in said grout valve, to inject said liquid, and close the valve of said grout valve A, B, C, D.
Proofing unit is arranged in the said sealing groove 40, in order to detect the position of liquid in the said sealing groove 40.Wherein, said proofing unit when detecting the position of said liquid, be specially every at a distance from cycle time, as: 2 months, the position of said liquid is detected; Because said liquid has volatilization to a certain degree in said sealing groove, so, when detecting the position of said liquid, all need add with said volatilization degree a great deal of like the said liquid of 20-40kg at every turn.
Warning device is connected with said proofing unit, and during fluid low, said warning device produces guard signal in said proofing unit detects said sealing groove.As: the liquid of said warning device in said proofing unit detects said groove is set in advance when the 100mm; Send guard signal; When then the value of the said liquid in said proofing unit detects said groove is 95mm, 80mm etc.; Said warning device just produces guard signal, to notify the staff to injecting liquid in the said groove.
In addition, said blast furnace also comprises:
Heat resisting foundation pier 60 is arranged on the said blast furnace foundation 10, and links to each other with said steel plate of furnace hearth 20, and said heat resisting foundation pier 60 is bases of blast furnace, and its structure plays a part to support the weight of carbon brick 80 and inner furnace charge of blast furnace and molten iron for mixing clay structure.
Forced air cooled tube 70 is arranged between heat resisting foundation pier 60 and the carbon brick 80, and links to each other with logical chimney, plays a part cooling carbon brick 80; When the said carbon brick 80 of cooling, utilize nature to pull out the wind principle, cold wind is through the furnace bottom pipeline; Cold wind absorbs heat, has cooled off the furnace bottom brick fuel, and hot blast is discharged through chimney.
Carbon brick 80 is arranged between forced air cooled tube 70 and the high alumina brick 90, and said carbon brick 80 is the tetragonal body structure; As: the length of side is the square of 345mm; Said carbon brick 80 when building by laying bricks or stones, can build by laying bricks or stones into multilayer as: 4 layers, said carbon brick 80 plays the effect of anti-slag iron erosive, and has the good heat transfer performance.
High alumina brick 90; Directly build between carbon brick 80 and furnace bottom; Said high alumina brick 90 for the tetragonal body structure as: length is respectively the G-2 type rectangular parallelepiped of 345mm, 150mm, 75mm, and said high alumina brick 90 plays secluding air when blast oven, prevents the effect of brick fuel 80 oxidations.
Carbon packing 100 is filled between said carbon brick 80, furnace shell steel plate 30, the cooling stave, and between carbon brick 80 and the heat resisting foundation pier 60, as: the low temperature tailor-tacking is stuck with paste, and has the good heat transfer performance.
Cooling stave 110 is arranged on the furnace shell steel plate 30, plays the absorption furnace heat, and the effect of protection furnace lining and furnace shell includes water-cooled tube in the said cooling stave 110, and said water-cooled tube has two ends, and wherein, an end is a water inlet pipe, and the other end is a rising pipe.
High alumina brick 120, the flat block on said high alumina brick 90, and around building around said body of heater; The brick type of said high alumina brick 120 is any one among the G1-G10; As: G1, G5, G10 etc., and be high furnace interior liner, play insulation, the effect of anti-slag iron erosive; Wherein, said anti-slag iron erosional competency is relatively poor.
One or more technical schemes through among the application embodiment have following technique effect at least:
One, through leaking at the bottom of the shutoff State of Blast Furnace in the process of coal gas; Adopted sealing groove has been set on blast furnace foundation; And be looped around on the furnace shell steel plate; In sealing groove, inject the technique means of tar or heavy oil then, solved the technical problem of leaking coal gas at the bottom of the State of Blast Furnace, reached blast furnace safety in production and long-lived technique effect;
Two, through leaking at the bottom of the shutoff State of Blast Furnace in the process of coal gas; Adopted the technique means of the liquid in the regular detection sealing groove; Solve liquid and when very few, may continue to cause the technical problem of leaking coal gas at the bottom of the State of Blast Furnace, reached safety, technique effect efficiently;
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. a blast furnace is characterized in that, comprising:
Blast furnace foundation is arranged on the blast furnace bottom, as the carrying basis of said blast furnace;
Steel plate of furnace hearth, covering is arranged on the said blast furnace foundation;
The furnace shell steel plate is fixedly installed on the said steel plate of furnace hearth;
Sealing groove is arranged on the said blast furnace foundation around said furnace shell steel plate, through in said sealing groove, injecting liquid, realizes said steel plate of furnace hearth and furnace shell steel plate are surrounded, and then realizes the coal gas that the said blast furnace of shutoff leaks.
2. blast furnace as claimed in claim 1 is characterized in that, said blast furnace also comprises:
The sealing steel plate fixedly covers on the said sealing groove, and wherein, said sealing steel plate is provided with at least one filling orifice, through said filling orifice, realizes said liquid is injected said sealing groove.
3. blast furnace as claimed in claim 2 is characterized in that, said blast furnace also comprises: quantity and the consistent grout valve of said at least one filling orifice are separately positioned on said at least one filling orifice.
4. like the described blast furnace of claim 1,2 or 3, it is characterized in that said blast furnace also comprises: proofing unit is arranged in the said sealing groove, in order to detect the position of liquid in the said sealing groove.
5. blast furnace as claimed in claim 4 is characterized in that, said blast furnace also comprises: warning device, be connected with said proofing unit, and when sealing fluid was not enough in said proofing unit detects said sealing groove, said warning device produced guard signal.
6. blast furnace as claimed in claim 5 is characterized in that said liquid is specially tar or heavy oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205433684U CN202482333U (en) | 2011-12-22 | 2011-12-22 | Blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205433684U CN202482333U (en) | 2011-12-22 | 2011-12-22 | Blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202482333U true CN202482333U (en) | 2012-10-10 |
Family
ID=46956770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205433684U Expired - Lifetime CN202482333U (en) | 2011-12-22 | 2011-12-22 | Blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202482333U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313217A (en) * | 2014-11-26 | 2015-01-28 | 中冶华天工程技术有限公司 | Blast furnace bottom |
| CN105063263A (en) * | 2015-08-28 | 2015-11-18 | 江苏沙钢集团有限公司 | Blast furnace bottom sealing structure |
| 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 |
| CN110849147A (en) * | 2019-11-28 | 2020-02-28 | 中冶京诚工程技术有限公司 | Heat accumulating type steel pushing heating furnace bottom structure |
| CN114774607A (en) * | 2022-04-24 | 2022-07-22 | 北京首钢建设集团有限公司 | Hot blast stove bottom structure and welding method thereof |
-
2011
- 2011-12-22 CN CN2011205433684U patent/CN202482333U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313217A (en) * | 2014-11-26 | 2015-01-28 | 中冶华天工程技术有限公司 | Blast furnace bottom |
| CN104313217B (en) * | 2014-11-26 | 2016-09-28 | 中冶华天工程技术有限公司 | Blast furnace bottom |
| CN105063263A (en) * | 2015-08-28 | 2015-11-18 | 江苏沙钢集团有限公司 | Blast furnace bottom sealing structure |
| 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 |
| CN110849147A (en) * | 2019-11-28 | 2020-02-28 | 中冶京诚工程技术有限公司 | Heat accumulating type steel pushing heating furnace bottom structure |
| CN114774607A (en) * | 2022-04-24 | 2022-07-22 | 北京首钢建设集团有限公司 | Hot blast stove bottom structure and welding method thereof |
| CN114774607B (en) * | 2022-04-24 | 2023-09-15 | 北京首钢建设集团有限公司 | Furnace bottom structure of hot blast furnace and welding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
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| CX01 | Expiry of patent term |