CN101603105A - A kind of siphon tapping device for blast furnace ironmaking - Google Patents
A kind of siphon tapping device for blast furnace ironmaking Download PDFInfo
- Publication number
- CN101603105A CN101603105A CNA2009100123937A CN200910012393A CN101603105A CN 101603105 A CN101603105 A CN 101603105A CN A2009100123937 A CNA2009100123937 A CN A2009100123937A CN 200910012393 A CN200910012393 A CN 200910012393A CN 101603105 A CN101603105 A CN 101603105A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- iron
- forehearth
- iron notch
- ironmaking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Manufacture Of Iron (AREA)
Abstract
A kind of siphon tapping device for blast furnace ironmaking, comprise blast furnace, the defeated molten iron passage of one blast furnace be set along the iron notch direction of body of heater, the iron notch of blast furnace is connected with a forehearth by the defeated Tie Tong of described blast furnace road, the upper lateral part of forehearth offers iron notch, and blast furnace iron notch and forehearth iron notch place are provided with the machine that taps a blast furnace respectively.The present invention can continuous, stable tapping a blast furnace in the process of blast furnace ironmaking; Can match with steel-making, reduce hot metal mixer operation in the steelmaking process, construction investment is significantly reduced, simultaneously the energy consumption of steel-making significantly be reduced.The present invention is particularly suitable in the operating process, and gas pressure is particularly useful for the high top pressure operation technology of coal gas pure oxygen blast furnace or coal powder pure oxygen blast furnace greater than the blast furnace of 0.2mpa.
Description
Technical field
The present invention relates to a kind of blast furnace ironmaking, tapping device, particularly relate to a kind of siphon tapping device for blast furnace ironmaking.
Technical background
The method of siphon tapping in the iron process of original cupola furnace, once must be widely and utilize.But on the blast furnace ironmaking development history, also never adopted the method for siphon tapping.This patent proposes cupola furnace siphon tapping method is transplanted in the blast furnace operating process, especially in the high pressure coal dust blast furnace casting process.
Summary of the invention
In order to solve the stability that high pressure gas and pure oxygen blast furnace ironmaking tap a blast furnace, improve the operation rate of blast furnace level, the invention provides a kind of siphon tapping device for blast furnace ironmaking.
The technical scheme that adopts is:
The present invention is applicable to that blast furnace hour produces the iron amount more than or equal to 60 tons/hour iron-smelting process.Siphon tapping device for blast furnace ironmaking of the present invention, comprise blast furnace, it is characterized in that the defeated molten iron passage of one blast furnace being set along the iron notch direction of body of heater, the iron notch of blast furnace is connected with a forehearth by the defeated molten iron passage of described blast furnace, the upper lateral part of forehearth offers iron notch, and blast furnace iron notch and forehearth iron notch place are provided with the machine that taps a blast furnace respectively.
The principle of work of blast furnace siphon tapping device of the present invention is: forehearth molten iron liquid level h
Preceding liquid, by the stock gas pressure P
1, the slag liquid level forms static pressure P
Slag=ρ
Slag* h
Slag, the pressure p that the molten iron liquid level forms apart from iron mouth medullary ray height
Iron=ρ
Iron* h
Iron, three parts are formed, then P=p
1+ p
Slag+ p
Iron=ρ
Iron* h
Preceding liquid, forehearth liquid level h then
Preceding liquid=(p
1+ ρ
Slag* h
Slag+ ρ
Ironh
Iron)/ρ
Iron
By the visible forehearth molten iron of following formula liquid level directly and in the blast furnace liquid level be associated, also join with stock gas pressure correlation.Can determine the height of the iron notch of forehearth according to above parameter.
This device can successively tap a blast furnace, and also can open an iron notch in the appropriate location below precognition molten iron liquid level, concentrates on time and taps a blast furnace, and the mode of tapping a blast furnace is identical with blast furnace.
Siphon tapping method and apparatus of the present invention has following characteristics:
1, can continuous, stable tapping a blast furnace in the process of blast furnace ironmaking.
2, can match with steel-making, reduce hot metal mixer operation in the steelmaking process, construction investment is significantly reduced, simultaneously the energy consumption of steel-making significantly be reduced.
3, the present invention is particularly suitable in the operating process, and gas pressure is particularly useful for the high top pressure operation technology of coal gas pure oxygen blast furnace or coal powder pure oxygen blast furnace greater than the blast furnace of 0.2mpa.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Embodiment
A kind of siphon tapping device for blast furnace ironmaking comprises blast furnace 1, forehearth 4, the defeated molten iron passage 3 of blast furnace, and blast furnace 1 is provided with iron notch 6, and the iron notch of blast furnace 1 is connected with forehearth 4 by the defeated molten iron passage 3 of blast furnace, and forehearth 4 upper lateral parts are provided with iron notch 7.Defeated molten iron passage of blast furnace and forehearth constitute by steel plate furnace shell and refractory materials inner casing.Be provided with the tap a blast furnace machine 2 and the machine 5 that taps a blast furnace respectively at blast furnace iron notch 6 and forehearth iron notch 7 places.The each several part parameter is as follows:
The forehearth diameter is: 3m;
The shaft height is: 3m;
Blast furnace casting open height :+8.400m;
Furnace top pressure 0.3mpa;
The molten iron liquid level is higher than 1.5 meters of iron notch medullary rays in stove;
The slag liquid level is high 0.3 meter;
Forehearth molten iron liquid level H then
Preceding liquid=0.1mpa ÷ 6.9t/m
3+ 1.5m+ ρ
Slag/ ρ
Iron* 0.3m=3.028m;
Actual height h
Preceding liquid=8.4+3.028=11.428m.
Be that the forehearth liquid level is higher than 11.428m and gets final product continuous tapping, also can below the iron notch position, open an iron notch simultaneously, concentrate on time and tap a blast furnace.
Claims (1)
1, a kind of siphon tapping device for blast furnace ironmaking, comprise blast furnace, it is characterized in that the defeated molten iron passage of one blast furnace being set along the iron notch direction of body of heater, the iron notch of blast furnace is connected with a forehearth by the defeated Tie Tong of described blast furnace road, the upper lateral part of forehearth offers iron notch, and blast furnace iron notch and forehearth iron notch place are provided with the machine that taps a blast furnace respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100123937A CN101603105A (en) | 2009-07-07 | 2009-07-07 | A kind of siphon tapping device for blast furnace ironmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100123937A CN101603105A (en) | 2009-07-07 | 2009-07-07 | A kind of siphon tapping device for blast furnace ironmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101603105A true CN101603105A (en) | 2009-12-16 |
Family
ID=41469005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100123937A Pending CN101603105A (en) | 2009-07-07 | 2009-07-07 | A kind of siphon tapping device for blast furnace ironmaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101603105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234698A (en) * | 2010-05-06 | 2011-11-09 | 丁公权 | Novel energy-saving and environment-friendly technology for making iron and making iron alloy by using lamp-shaped furnace |
| WO2012040941A1 (en) * | 2010-09-27 | 2012-04-05 | Zhou Jiule | Siphon tapping device for blast furnace iron-making |
-
2009
- 2009-07-07 CN CNA2009100123937A patent/CN101603105A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234698A (en) * | 2010-05-06 | 2011-11-09 | 丁公权 | Novel energy-saving and environment-friendly technology for making iron and making iron alloy by using lamp-shaped furnace |
| WO2012040941A1 (en) * | 2010-09-27 | 2012-04-05 | Zhou Jiule | Siphon tapping device for blast furnace iron-making |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Emi | Steelmaking technology for the last 100 years: toward highly efficient mass production systems for high quality steels | |
| CN101550467B (en) | Process for producing high silicon manganese-silicon alloy by using electric refining furnaces | |
| CN102851443B (en) | Method for increasing continuous casting heats of aluminum-deoxidized bearing steel | |
| CN102787196B (en) | Method for smelting stainless steel by direct reduced iron | |
| CN103436810B (en) | A kind of steel casting production technology of martensite wear resistant steel | |
| CN107893188B (en) | A kind of smelting process of high intensity manganese-boron steel | |
| CN102161567A (en) | Method for smelting nickel alloy by utilizing ore-smelting electric furnace and producing mineral wool fiber by melting waste residues and utilizing sensible heat | |
| CN107365890A (en) | A kind of control method of X80 inclusion in pipeline steel | |
| CN101654760A (en) | Unalloyed structural steel S355J2 steel plate and production method thereof | |
| CN108004369A (en) | It is a kind of improve steel scrap enter stove than method for making steel | |
| CN105483501A (en) | Method for smelting phosphorus-containing ultra-low carbon steel | |
| CN101696460B (en) | Process and device for dual continuous steel making with iron-containing material rotary hearth furnace | |
| CN107245637A (en) | A kind of AOD smelts the method and a kind of AOD furnace of high manganese stainless steel | |
| CN100354433C (en) | Converter smelting method | |
| CN106319333B (en) | A kind of smelting process of high strength steel v n micro alloying | |
| CN105132605A (en) | Process for pressing slag and removing foam of converter slag tank by using blast furnace gas ash | |
| CN100507016C (en) | Air curtain skimming device for steel-making converter | |
| CN107779550B (en) | The method of molten steel manganeisen additional amount is reduced in a kind of refining process | |
| CN103757173B (en) | The converter steel making method of low lime consumption | |
| CN101603105A (en) | A kind of siphon tapping device for blast furnace ironmaking | |
| CN103484599B (en) | Smelting method of high-manganese wear-resistant steel | |
| CN105087851A (en) | Method for smelting high-carbon steel with semisteel | |
| CN101413044A (en) | Alloy addition method for improving yield of ferromolybdenum | |
| CN102634624A (en) | Method for tapping and pouring hot metal at bottom from hot metal ladle | |
| CN109517959A (en) | Effective hot rolled strip of a kind of low cost conveying and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091216 |