CN101928801B - Blowing slag-removing equipment for molten iron pretreatment - Google Patents
Blowing slag-removing equipment for molten iron pretreatment Download PDFInfo
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- CN101928801B CN101928801B CN2010102729037A CN201010272903A CN101928801B CN 101928801 B CN101928801 B CN 101928801B CN 2010102729037 A CN2010102729037 A CN 2010102729037A CN 201010272903 A CN201010272903 A CN 201010272903A CN 101928801 B CN101928801 B CN 101928801B
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Abstract
The invention relates to blowing slag-removing equipment for molten iron pretreatment, which is arranged on a platform of a slag-raking machine of a molten iron tank. The blowing slag-removing equipment comprises a guide rail, a rotary bearing, an adjustable bearing, a guide roll, a guide chain wheel, an elevating drive unit, an elevating trolley, a blowing rod and a refractory material section, wherein, the guide rail is arranged slantwise above the molten iron tank; the elevating trolley is arranged on the guide rail; the elevating drive unit drives the elevating trolley to move up and down along the guide rail through the guide chain wheel; the rotary bearing is connected with the upper part of the guide rail, the adjustable bearing is connected with the middle part of the guide rail, and the guide roll is arranged at the lower part of the guide rail; the rotary bearing and the adjustable bearing are fixed on the platform of the slag-raking machine; and the blowing rod is arranged on the elevating trolley and the refractory material section is connected with the lower part of the blowing rod. When the slag-raking machine runs, the blowing rod is inserted in ladle for blowing nitrogen; and during the slag-removing process, the slag quantity is continuously reduced and an exposed surface of molten iron is increasingly enlarged until the slag is almost entirely removed. The blowing slag-removing equipment can shorten the slag-removing time by 2 minutes, lower the iron loss by over 20% and achieve better economic benefit.
Description
Technical field
The present invention relates to hot metal pretreatment, the inflatable device to catch slag when being specifically related to a kind of hot metal pretreatment.
Background technology
Domestic and international now most steelworks hot metal pretreatment adopts the technology of skimming behind winding-up or the paddling process to carry out desulfurization dephosphorization.Winding-up or stirring technique have determined to handle the level of terminal point molten iron sulfur-bearing phosphorus, and the important means that the slag after slag skimming process is handled desulfurization phosphorus is removed from molten iron is the principal element that stove sulphur phosphorus total amount is gone in decision.Therefore adopting the advanced equipment and technology of skimming is very necessary to steelmaking system control sulphur with reducing production costs.In order to improve the effect of skimming, (side) blown auxiliary slag skimming process at the bottom of domestic some steel mill adopted iron ladle, but had more problem in the triturating, washed away seriously, the gas permeable brick and the iron ladle lost of life, leaked the inconvenience of iron accident and maintenance replacing like the iron ladle sidewall.Also there is steel mill to be employed in to set up on the slag removal machine body and blows the slag device, but catch up with the slag effect undesirable owing to inserting reasons such as the molten iron degree of depth is not enough, the environment thermal radiation is serious.
In view of this, seek a kind of blowing slag-removing equipment for molten iron pretreatment and become pursuing one's goal of these those skilled in the art.
Summary of the invention
Task of the present invention provides a kind of blowing slag-removing equipment for molten iron pretreatment, and it has solved above-mentioned existing in prior technology problem, removes slag fully to reach, and shortens slag-removing time, thereby reduces the purpose that iron loss promotes economic benefit.
Technical solution of the present invention is following:
A kind of blowing slag-removing equipment for molten iron pretreatment is arranged on the iron ladle slag removal machine platform, comprises guide rail, pivoting support, adjustable seats, guide roller, jockey sprocket, lifting drive, lift cart, inflatable bar and refractory segment;
Said guide rail is obliquely installed above iron ladle, and lift cart is arranged on the guide rail, and lifting drive moves up and down along guide rail through jockey sprocket transmission lift cart;
Said pivoting support connects guide rail top, and said adjustable seats connects the guide rail middle part, and said guide roller is arranged on the guide rail bottom, and said pivoting support and adjustable seats all are fixed on the slag removal machine platform;
Said inflatable bar is arranged on the lift cart, and refractory segment is connected the inflatable bar bottom.
The angle of inclination of said guide rail is perpendicular to the hot-metal bottle tipping angle.
Said lift cart comprises car body, clamper and guiding wheels, and said clamper is arranged on the car body, and said guiding wheels are arranged on the car body bottom, along guide rail movement; Said clamper clamping inflatable bar, said inflatable bar slides on guide rail with lift cart.
Guide deflection sheave in the said guiding wheels is the two-way roller bearing of adjusting of adjustable eccentric.
Said lifting drive comprises gear reducing motor, sprocket wheel, chain and support; Said gear reducing motor output shaft is a solid shaft; Connect sprocket wheel through shaft coupling, said lifting drive is fixed on the support of steel plate welding, is arranged on the slag removal machine platform.
Said sprocket wheel is quadruplet altogether, respectively arranges a cover sprocket wheel at the guide rail two ends, and other two cover sprocket wheels are used for the chain guiding near being arranged in lifting drive.
Said inflatable bar is two-tube cover, and its outer tube diameter is 90mm, and the length of inflatable bar is 13 meters.
The length of said refractory segment is 2.8 meters.
The present invention arranges inflatable device to catch slag in the slag removal machine upper stage; When slag removal machine is worked; Inflatable bar is inserted nitrogen blowing in the hot metal ladle; The bubble expanded by heating that nitrogen forms in high temperature liquid iron obviously reduces molten iron and gaseous mixture proportion, upwards flowed by buoyancy thereby order about molten iron and gaseous mixture, drives scum silica frost when flowing to liquid level to the bag mouth direction motion of tilting.Along with the carrying out of the process of skimming, the quantity of slag constantly reduces, and the molten iron exposed surface constantly enlarges, until slag almost completely removes.
Adopt inflatable device to catch slag of the present invention, can shorten slag-removing time 2 minutes, reduce iron loss more than 20%, produce favorable economic benefit.
Description of drawings
Fig. 1 is the structural representation of a kind of blowing slag-removing equipment for molten iron pretreatment of the present invention.
Fig. 2 is the synoptic diagram of blowing slag-removing equipment for molten iron pretreatment practice in the embodiments of the invention.
Reference numeral:
1 is guide rail, and 2 is pivoting support, and 3 is jockey sprocket, and 4 is lifting drive, and 5 is lift cart; 6 is adjustable seats, and 7 is inflatable bar, and 8 is guide roller, and 9 is refractory segment, and 10 is the blowing slag-removing device; 11 are the petticoat pipe that gathers dust, and 12 is iron ladle, and 13 are the operation room of skimming, and 14 is slag removal machine.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Referring to Fig. 1 and Fig. 2; The invention provides a kind of blowing slag-removing equipment for molten iron pretreatment; It is arranged on iron ladle slag removal machine 14 platforms, mainly is made up of guide rail 1, pivoting support 2, jockey sprocket 3, lifting drive 4, lift cart 5, adjustable seats 6, inflatable bar 7, guide roller 8, refractory segment 9 and blowing slag-removing device 10.
Guide rail 1 is obliquely installed above iron ladle 12, and lift cart 5 is arranged on the guide rail 1, and lifting drive 4 moves up and down along guide rail 1 through jockey sprocket 3 transmission lift carts 5.Inflatable bar 7 is arranged on the lift cart 5, and refractory segment 9 is connected inflatable bar 7 bottoms.
Pivoting support 2 connects guide rail 1 top, and adjustable seats 6 connects guide rail 1 middle part, and pivoting support 2 and adjustable seats 6 all are fixed on the slag removal machine platform.Guide roller 8 is arranged on guide rail 1 bottom.The angle of inclination of guide rail 1 is perpendicular to iron ladle 12 tip-over angles.
Lift cart 5 comprises car body, clamper and guiding wheels, and clamper is arranged on the car body, and the guiding wheels are arranged on the car body bottom, move along guide rail 1.Wherein guide deflection sheave is the two-way roller bearing of adjusting of adjustable eccentric, contacts with the tight of guide rail to guarantee wheel.Clamper clamping inflatable bar 7, inflatable bar 7 moves on guide rail 1 with lift cart 5.
Lifting drive 4 comprises gear reducing motor, sprocket wheel, chain and support, and the gear reducing motor output shaft is a solid shaft, connects sprocket wheel through shaft coupling, and lifting drive 4 is fixed on the support of steel plate welding, is arranged on the slag removal machine platform.Sprocket wheel is quadruplet altogether, respectively arranges a cover sprocket wheel at the guide rail two ends, and other two cover sprocket wheels are used for the chain guiding near being arranged in lifting drive 4.
Inflatable bar 7 is two-tube cover, and its outer tube diameter is about 90mm, and the length of inflatable bar 7 is 13 meters.The length of refractory segment 9 is 2.8 meters.
Actual service condition of the present invention is following:
This equipment mainly is made up of guide rail, lift cart, lifting drive, inflatable bar, adjustable seats, pivoting support, platform support, roller apron and other utility appliance etc.
Guide rail is the track that is formed by H shaped steel and steel plate welding processing, and lift cart moves up and down between it, and guide rail is fixed on the platform support through two point of suppon, and itself tilts track, and the angle of inclination is perpendicular to the hot-metal bottle tipping angle.
Lift cart is used for the clamping of inflatable bar, is driven by drive unit, drives inflatable bar through chain gear and is treating traveling between seat in the plane and the working position.Lift cart mainly partly is made up of car body, clamper, guiding wheels etc., and wherein guide deflection sheave adopts the two-way roller bearing of adjusting of adjustable eccentric, contacts with the tight of guide rail to guarantee wheel.Band chain bar tightening device on the lift cart, lift cart clamping air blow gun, air blow gun moves on guide rail with lift cart.
Lifting drive mainly partly is made up of gear reducing motor, sprocket wheel, chain, support etc., and its constitutional features and principle of work are following: drive unit is used to drive the up-down of inflatable bar.The gear reducing motor output shaft is a solid shaft, connects sprocket wheel through shaft coupling.Drive unit is fixed on the support of steel plate welding, and together is installed on the platform support.Chain gear apparatus is quadruplet altogether, and a cover chain gear apparatus is respectively arranged at the guide rail two ends, and other two cover chain gear apparatus are used for the chain guiding near being arranged in drive unit.Rising or falling speed is about 12m/min.
Air blow gun adopts two-tube cover form, and outer tube diameter is about 90mm, and owing to the factory building reason, the rifle body length reaches 13 meters.In order to prevent that the rifle body receives gravity and environment thermal radiation deflection deformation, tole of welding can effectively prevent the rifle body deformability on the rifle body.Refractory segment is fixed in the air blow gun bottom, adopts the mode of connection of rapid-acting coupling to be convenient to dismounting, and refractory segment is about 2.8 meters, inserts about 2.3 meters of molten iron length, about 1.2 meters of the degree of depth.The air blow gun top connects the logical nitrogen of metallic hose jets, and is blown into nitrogen flow 150Nm
3/ h, blow gas pressure is 0.6MPa to the maximum.
Pivoting support is positioned at the track upper brace, plays point action, is made up of bearing, chock, bearing etc.Because this equipment can satisfy different molten iron Intake Quantity scopes; The tip-over angle of iron bag also has certain limit; So the angle of inclination of track is made as the intermediate value of this scope; Equipment is that conveniently adjusting angle is provided with adjustable seats when installing, and the bolt hole on the bearing is made slotted hole, and debugging welds guide rail and bearing after accomplishing again.
Because the long and environment thermal radiation of rifle body can be provided with fixed guide roller and support the rifle body, the vibration of equipment when preventing rifle body deflection deformation, minimizing ejection.Should try one's best away from the bag wall of a side of slag removal machine in the position of air blow gun insertion iron bag winding-up, the interference of deslagging head and inflatable bar is convenient to take off slag operation when effectively preventing to skim operation.
A limit switch control respectively is set in normal standby position, working position, the maintenance position of lift cart.
To sum up can know; The present invention arranges inflatable device to catch slag in the slag removal machine upper stage; When slag removal machine is worked, inflatable bar is inserted nitrogen blowing in the hot metal ladle, the bubble expanded by heating that nitrogen forms in high temperature liquid iron obviously reduces molten iron and gaseous mixture proportion; Upwards flowed by buoyancy thereby order about molten iron and gaseous mixture, drive scum silica frost when flowing to liquid level to the bag mouth direction motion of tilting.Along with the carrying out of the process of skimming, the quantity of slag constantly reduces, and the molten iron exposed surface constantly enlarges, until slag almost completely removes.Adopt inflatable device to catch slag of the present invention, can shorten slag-removing time 2 minutes, reduce iron loss more than 20%, produce favorable economic benefit.
Certainly; Those skilled in the art in the present technique field will be appreciated that; The foregoing description only is to be used for explaining the present invention; And be not with opposing qualification of the present invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (6)
1. blowing slag-removing equipment for molten iron pretreatment; Be arranged on the iron ladle slag removal machine platform; Said inflatable device to catch slag comprises guide rail, lift cart, lifting drive, it is characterized in that: said inflatable device to catch slag also comprises pivoting support, adjustable seats, guide roller, jockey sprocket, inflatable bar and refractory segment;
Said guide rail is obliquely installed above iron ladle, and the angle of inclination of guide rail is perpendicular to the hot-metal bottle tipping angle, and lift cart is arranged on the guide rail, and lifting drive moves up and down along guide rail through jockey sprocket transmission lift cart;
Said pivoting support connects guide rail top, and said adjustable seats connects the guide rail middle part, and said guide roller is arranged on the guide rail bottom, and said pivoting support and adjustable seats all are fixed on the slag removal machine platform;
Said inflatable bar is arranged on the lift cart, and refractory segment is connected the inflatable bar bottom; Said inflatable bar is two-tube cover; Long and environment thermal radiation is provided with the fixed guide roller support rod body because of the air blowing body of rod, the vibration of equipment when preventing body of rod deflection deformation, minimizing ejection;
Said lift cart comprises car body, clamper and guiding wheels, and said clamper is arranged on the car body, and said guiding wheels are arranged on the car body bottom, along guide rail movement; Said clamper clamping inflatable bar, said inflatable bar slides on guide rail with lift cart;
Said lift cart is used for the clamping of inflatable bar, is driven by drive unit, drives inflatable bar through chain gear and is treating traveling between seat in the plane and the working position; A limit switch control respectively is set in normal standby position, working position, the maintenance position of lift cart.
2. blowing slag-removing equipment for molten iron pretreatment according to claim 1 is characterized in that: the guide deflection sheave in the said guiding wheels is the two-way roller bearing of adjusting of adjustable eccentric.
3. blowing slag-removing equipment for molten iron pretreatment according to claim 1; It is characterized in that: said lifting drive comprises gear reducing motor, sprocket wheel, chain and support; Said gear reducing motor output shaft is a solid shaft; Connect sprocket wheel through shaft coupling, said lifting drive is fixed on the support of steel plate welding, is arranged on the slag removal machine platform.
4. blowing slag-removing equipment for molten iron pretreatment according to claim 3 is characterized in that: said sprocket wheel is quadruplet altogether, respectively arranges a cover sprocket wheel at the guide rail two ends, and other two cover sprocket wheels are used for the chain guiding near being arranged in lifting drive.
5. blowing slag-removing equipment for molten iron pretreatment according to claim 1 is characterized in that: the outer tube diameter of the two-tube cover of said inflatable bar is 90mm, and the length of inflatable bar is 13 meters.
6. blowing slag-removing equipment for molten iron pretreatment according to claim 1 is characterized in that: the length of said refractory segment is 2.8 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102729037A CN101928801B (en) | 2010-09-02 | 2010-09-02 | Blowing slag-removing equipment for molten iron pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102729037A CN101928801B (en) | 2010-09-02 | 2010-09-02 | Blowing slag-removing equipment for molten iron pretreatment |
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| Publication Number | Publication Date |
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| CN101928801A CN101928801A (en) | 2010-12-29 |
| CN101928801B true CN101928801B (en) | 2012-09-12 |
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| CN2010102729037A Active CN101928801B (en) | 2010-09-02 | 2010-09-02 | Blowing slag-removing equipment for molten iron pretreatment |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534063A (en) * | 2012-01-31 | 2012-07-04 | 首钢京唐钢铁联合有限责任公司 | Air-blowing deslagging equipment, deslagging system and deslagging method |
| CN103173589B (en) * | 2012-12-11 | 2015-12-02 | 武汉榕盛科发冶金机械设备制造有限公司 | Blow the formula slag gathering device that boils |
| CN105296709B (en) * | 2014-06-09 | 2017-07-21 | 鞍钢股份有限公司 | One kind springs up formula molten iron drossing method |
| CN106319148B (en) * | 2015-06-30 | 2019-09-13 | 宝钢工程技术集团有限公司 | Automatic Link Establishment and its application method for blowing cast slag gun pipette tips |
| CN107287376B (en) * | 2017-06-13 | 2019-04-16 | 河钢股份有限公司承德分公司 | Molten iron pretreatment assists blowing slag-removing device of skimming |
| CN109014143B (en) * | 2018-07-13 | 2020-03-31 | 安徽思源三轻智能制造有限公司 | Continuous and rapid forming device for liquid die forging |
| CN109746429B (en) * | 2019-03-08 | 2021-02-23 | 迁安市九江线材有限责任公司 | Intelligent steel slag skimming system |
| CN112813220A (en) * | 2020-12-31 | 2021-05-18 | 镇江市坤洋冶金设备有限公司 | Blowing and slag removing device |
| CN113337674A (en) * | 2021-05-31 | 2021-09-03 | 攀钢集团攀枝花钢钒有限公司 | Air blowing slag removing gun and slag removing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797380Y (en) * | 2005-02-06 | 2006-07-19 | 宝山钢铁股份有限公司 | Device for scooping up slag |
| CN201762372U (en) * | 2010-09-02 | 2011-03-16 | 宝钢工程技术集团有限公司 | Hot metal pretreatment device for slag expelling by blowing |
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2010
- 2010-09-02 CN CN2010102729037A patent/CN101928801B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797380Y (en) * | 2005-02-06 | 2006-07-19 | 宝山钢铁股份有限公司 | Device for scooping up slag |
| CN201762372U (en) * | 2010-09-02 | 2011-03-16 | 宝钢工程技术集团有限公司 | Hot metal pretreatment device for slag expelling by blowing |
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| CN101928801A (en) | 2010-12-29 |
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