CN202116579U - Online iron alloy baking furnace used in converter - Google Patents
Online iron alloy baking furnace used in converter Download PDFInfo
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- CN202116579U CN202116579U CN 201120148283 CN201120148283U CN202116579U CN 202116579 U CN202116579 U CN 202116579U CN 201120148283 CN201120148283 CN 201120148283 CN 201120148283 U CN201120148283 U CN 201120148283U CN 202116579 U CN202116579 U CN 202116579U
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Abstract
An online iron alloy baking furnace used in a converter belongs to the technical field of converter steel making and is used for baking and preheating alloy materials of the converter steel making. The technical scheme includes that the online iron alloy baking furnace comprises a furnace frame, a furnace body, a combustor and a furnace cover. The furnace body is fixed on the furnace frame, the furnace frame and the furnace body are installed on a middle vacant area between the position under an alloy weigh hopper and the position above an alloy rotary chute, the combustor is arranged on the upper portion of the furnace body, the furnace cover is arranged on the upper portion of the furnace body, a discharging pipe passes through a flap valve under the weigh hopper to be directly inserted into the furnace cover, the furnace cover is further provided with a dedusting pipe, the lower portion of the furnace body is provided with a quadrant valve, and the lower portion of the quadrant valve exactly faces the alloy rotary chute. The vacant space above the rotary chute at the back of the converter is innovatively utilized, and the problem that off-line baking of the converter occupies large area and investment is large is resolved. Single furnace alloy materials are utilized in the baking, baking effect can be easy to achieve in a short time, and the equipment is simple and good in dedusting effect. The lifting furnace cover resolves the safety problem that a closed baking furnace is prone to explosion.
Description
Technical field
The utility model relates to a kind of bakeout oven for ferro-alloy that in a kind of convertor steelmaking process load weighted alloy material is heated, and belongs to the converter steelmaking equipment technical field.
Background technology
Most at present steel grades can be through converter production; In converter steelmaking process, remove phosphorus, sulphur, the scope that again carbon is blown to and stipulates; Then the requirement of alloy material according to the steel grade trade mark joined in the molten steel, to satisfy of the requirement of different steel grades chemical ingredients.Therefore, the variation of alloy material composition plays a decisive role to the trade mark, the quality of later stage steel grade.In process for making; The alloy material add-on adds the hundreds of kilogram with the difference of smelting steel grade and does not wait to several tons; Be in iron alloy under the normal temperature and will suck a large amount of heats in the molten steel that joins more than 1600 ℃ the time, to liquid steel temperature is reduced, in order to guarantee the watering property of molten steel; Converter must improve tapping temperature, will bring many negative impacts to steel-making cost and improve tapping temperature.In addition, free-water in the alloy material and crystal water also possibly cause quality accident, thus alloy material to add before the ladle the alloy preheating be important measures of STEELMAKING PRODUCTION.But because restricted conditions such as steelworks factory site and safety, domestic majority converter at present is not provided with the alloy baking device, only when smelting special steel grade, just is forced to and uses the alloy baking stove; The whole material loading of this roaster, baking, blanking all are to adopt the off-line baking scheme, and its shortcoming is that independently material loading, blanking, roasting plant need be set separately, and a plurality of alloy baking stoves need be set; Minimum four of every block converter; Two block converters need be provided with seven roasters, and each stove steel capital must be prepared in advance and expect and go baking in the alloy baking stove, toast and afterwards has been dragged to feed opening through dolly again; Floor space is bigger, invests bigger.Another kind of roasting scheme relatively more commonly used is to be employed in the simple and easy method that installs apparatus for baking on the high hopper additional.This roasting mode is simple, but because the feed bin storing is many, cured effect is poor, and easy break-down, potential safety hazard occurs.
The utility model content
The utility model to solve technical problem provide can carry out quick baking, use flexible, easy to maintenance, can carry out temperature and the online bakeout oven for ferro-alloy of coverter pig of weighing and measuring.
The technical scheme that solves the problems of the technologies described above is:
The online bakeout oven for ferro-alloy of a kind of coverter pig, it is made up of grate, body of heater, burner, bell, and body of heater is fixed on the grate; Grate and body of heater are installed in the middle neutral gear zone of alloy scale hooper below and alloy swivel chute top, and burner is installed in the top of body of heater, and bell is above body of heater; Tremie pipe is gone into bell through the flap valve straight cutting of scale hooper below; Dust removing tube also is installed on the bell, and the bottom of body of heater is equipped with quadrant valve, and the quadrant valve below faces the alloy swivel chute.
The online bakeout oven for ferro-alloy of above-mentioned coverter pig, the oblique insertion body of heater of said burner has three baking guns in the burner, be connected with gaspipe line, airline, Chang Minghuo pipe respectively.
The online bakeout oven for ferro-alloy of above-mentioned coverter pig, said bell one side is connected with hydraulic push rod, and hydraulic push rod is connected with the drive unit of Hydraulic Station.
The online bakeout oven for ferro-alloy of above-mentioned coverter pig, said dust removing tube is parallel with tremie pipe, and the end of dust removing tube outside bell inserts the secondary BOF dedusting system pipeline through motorized valve.
The online bakeout oven for ferro-alloy of above-mentioned coverter pig, the mouth of pipe place of said tremie pipe and dust removing tube all is provided with the nitrogen envelope respectively.
The usefulness of the utility model is:
1, skilful second ground of the utility model has utilized the free space of swivel chute top behind the converter stove, has solved the converter off-line baking and has taken up an area of greatly, invests big problem;
2, adopted the single stove alloy material to the process weighing to toast, the material amount is little, is easy to reach at short notice cured effect, and equipment is simple, has good dedusting scheme;
3, the up-down bell is fallen after igniting again, has also solved the airtight roaster safety-problems of blast easily, has wide promotional value for the mammoth conveter steel mill that smelts big alloy dimension kind.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the side-view of Fig. 1.
Mark is following among the figure: grate 1, body of heater 2, burner 3, bell 4, tremie pipe 5, dust removing tube 6, hydraulic push rod 7, flap valve 8, quadrant valve 9, butterfly valve 10, alloy swivel chute 11, electronic scale 12, thermopair 13, Hydraulic Station 14, gaspipe line 15, airline 16, Chang Minghuo pipe 17.
Embodiment
The utility model is made up of grate 1, body of heater 2, burner 3, bell 4.
Show among the figure; Body of heater 2 is fixed on the grate 1; Grate 1 is regional with the middle neutral gear that body of heater 2 is installed in alloy scale hooper below and alloy swivel chute 11 tops, puzzles anti-material in the stove, and the bottom of body of heater 1 is equipped with quadrant valve 9; Quadrant valve 9 belows face alloy swivel chute 11, and opening and closing quadrant valve 9 can bleed baked alloy material on the alloy swivel chute 11.
Show among the figure that burner 3 is installed in the top of body of heater 2, burner 3 oblique insertion bodies of heater 2; Three baking guns are arranged in the burner 3; Be connected with gaspipe line 15, airline 16, Chang Minghuo pipe 17 respectively, flame sprays from baking gun alloy material is toasted, and toasts after ten to 20 minutes; Roasting good alloy arrives for 9 times in the alloy swivel chute 11 through electronic quadrant valve, gets into ladle.
Show among the figure that bell 4 is above body of heater 2, tremie pipe 5 is gone into bell 4 through flap valve 8 straight cuttings of scale hooper below, and the alloy material of process weighing arrives for 8 times through in the roaster of preheating through flap valve.Dust removing tube 6 also is installed on the bell 4, and dust removing tube 6 is parallel with tremie pipe 5, and the end of dust removing tube 6 outside bell 4 inserts the secondary BOF dedusting system pipeline through motorized valve, and the flue gas that baking produces drains in the secondary BOF dedusting system pipe through the dust removing tube 6 of top.Bell 4 one sides are connected with hydraulic push rod 7, and hydraulic push rod 7 is connected with the drive unit of Hydraulic Station 14, and bell 4 can pass through the hydraulic drive oscilaltion, are used to when closing prevent that heat scatters and disappears, and are used to unload quick-fried during unlatching.In order to prevent that high-temperature flue gas from burning out tremie pipe or dust removing tube, all be provided with the nitrogen envelope at lower nozzle and dedusting mouth.
Show among the figure that the utility model also is equipped with electronic scales 12 and thermopair 13, electronic scale 12 is responsible for the second weighing of alloy material, and thermopair 13 is used for temperature in the test furnace.
The result of use of an embodiment of the utility model and economic benefit are calculated:
Implement alloy baking: 5 ℃ of tapping temperatures can be reduced, 4 tons/week of refractory consumption can be reduced, 208 tons/year, 208 tons * 3000 yuan/ton=62.4 ten thousand yuan/year; Can reduce back oxygen blast 100 m
3/ stove steel, about 0. 55m
3/ ton steel, annual 3500000 tons of steel, then 3,500,000 m
3* 0.55 m
3/ ton steel * 0.46 yuan/m
3=89.44 ten thousand yuan/year; Can reduce iron and steel stock and consume 0.84kg/ ton steel, then 3,500,000 tons * 0.84kg/ ton steel * 3 yuan/kg=8,760,000 yuan/year add up to: 1027.84 ten thousand yuan/year.
Claims (5)
1. online bakeout oven for ferro-alloy of coverter pig; It is characterized in that: it is made up of grate (1), body of heater (2), burner (3), bell (4), and body of heater (2) is fixed on the grate (1), and grate (1) and body of heater (2) are installed in the middle neutral gear zone of alloy scale hooper below and alloy swivel chute (11) top; Burner (3) is installed in the top of body of heater (2); Bell (4) is in the top of body of heater (2), and tremie pipe (5) is gone into bell (4) through flap valve (8) straight cutting of scale hooper below, and dust removing tube (6) also is installed on the bell (4); The bottom of body of heater (2) is equipped with quadrant valve (9), and quadrant valve (9) below faces alloy swivel chute (11).
2. the online bakeout oven for ferro-alloy of coverter pig according to claim 1; It is characterized in that: the oblique insertion body of heater of said burner (3) (2); Three baking guns are arranged in the burner (3), be connected with gaspipe line (15), airline (16), Chang Minghuo pipe (17) respectively.
3. the online bakeout oven for ferro-alloy of coverter pig according to claim 2 is characterized in that: said bell (4) one sides are connected with hydraulic push rod (7), and hydraulic push rod (7) is connected with the drive unit of Hydraulic Station (14).
4. the online bakeout oven for ferro-alloy of coverter pig according to claim 3 is characterized in that: said dust removing tube (6) is parallel with tremie pipe (5), and the end of dust removing tube (6) outside bell (4) inserts the secondary BOF dedusting system pipeline through motorized valve.
5. the online bakeout oven for ferro-alloy of coverter pig according to claim 4 is characterized in that: the mouth of pipe place of said tremie pipe (5) and dust removing tube (6) all is provided with the nitrogen envelope respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120148283 CN202116579U (en) | 2011-05-11 | 2011-05-11 | Online iron alloy baking furnace used in converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120148283 CN202116579U (en) | 2011-05-11 | 2011-05-11 | Online iron alloy baking furnace used in converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202116579U true CN202116579U (en) | 2012-01-18 |
Family
ID=45457660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120148283 Expired - Fee Related CN202116579U (en) | 2011-05-11 | 2011-05-11 | Online iron alloy baking furnace used in converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202116579U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524761A (en) * | 2016-12-26 | 2017-03-22 | 河北煜剑节能技术有限公司 | Iron alloy heating furnace and iron alloy supply device |
| CN107557527A (en) * | 2017-09-29 | 2018-01-09 | 四川德胜集团钒钛有限公司 | A kind of steelmaking converter alloy baking system |
| CN107974529A (en) * | 2017-11-24 | 2018-05-01 | 北京金自能源科技发展有限公司 | The method of converter alloy on-line heating combination energy-saving and frequency-variable synthesis lifting steel-making efficiency |
| CN108998624A (en) * | 2018-09-30 | 2018-12-14 | 四川德胜集团钒钛有限公司 | A kind of online alloy baking device of converter |
| CN109182644A (en) * | 2018-08-08 | 2019-01-11 | 鞍钢股份有限公司 | Alloy material baking furnace system after rotary distribution converter and operation method |
| CN111485057A (en) * | 2020-05-29 | 2020-08-04 | 陕西龙门钢铁有限责任公司 | Method and system for baking alloy by using high-temperature waste heat flue gas of converter |
| CN114182059A (en) * | 2021-12-07 | 2022-03-15 | 中冶南方工程技术有限公司 | Converter alloy feeding system with two-stage dust removal function |
-
2011
- 2011-05-11 CN CN 201120148283 patent/CN202116579U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524761A (en) * | 2016-12-26 | 2017-03-22 | 河北煜剑节能技术有限公司 | Iron alloy heating furnace and iron alloy supply device |
| CN106524761B (en) * | 2016-12-26 | 2019-10-18 | 河北煜剑节能技术有限公司 | Ferroalloy heating furnace and ferroalloy feeding mechanism |
| CN107557527A (en) * | 2017-09-29 | 2018-01-09 | 四川德胜集团钒钛有限公司 | A kind of steelmaking converter alloy baking system |
| CN107974529A (en) * | 2017-11-24 | 2018-05-01 | 北京金自能源科技发展有限公司 | The method of converter alloy on-line heating combination energy-saving and frequency-variable synthesis lifting steel-making efficiency |
| CN109182644A (en) * | 2018-08-08 | 2019-01-11 | 鞍钢股份有限公司 | Alloy material baking furnace system after rotary distribution converter and operation method |
| CN108998624A (en) * | 2018-09-30 | 2018-12-14 | 四川德胜集团钒钛有限公司 | A kind of online alloy baking device of converter |
| CN111485057A (en) * | 2020-05-29 | 2020-08-04 | 陕西龙门钢铁有限责任公司 | Method and system for baking alloy by using high-temperature waste heat flue gas of converter |
| CN114182059A (en) * | 2021-12-07 | 2022-03-15 | 中冶南方工程技术有限公司 | Converter alloy feeding system with two-stage dust removal function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140511 |