CN201762372U - Hot metal pretreatment device for slag expelling by blowing - Google Patents
Hot metal pretreatment device for slag expelling by blowing Download PDFInfo
- Publication number
- CN201762372U CN201762372U CN2010205171155U CN201020517115U CN201762372U CN 201762372 U CN201762372 U CN 201762372U CN 2010205171155 U CN2010205171155 U CN 2010205171155U CN 201020517115 U CN201020517115 U CN 201020517115U CN 201762372 U CN201762372 U CN 201762372U
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- hot metal
- slag
- guide rail
- removing device
- metal pretreatment
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a hot metal pretreatment device for slag expelling by blowing, which is arranged on a slag removal machine platform of a hot metal tank and includes guide rails, a guide chain wheel, a lifting drive device, a lifting unit, a blowing rod and a refractory section; guide rails are obliquely arranged on top of the hot metal tank; the lifting unit is arranged on guide rails; the lifting drive device drives the lifting unit to move up and down by the guide chain wheel along guide rails; the blowing rod is arranged on the lifting unit; and the refractory section is disposed on the lower portion of the blowing rod. When the slag removal machine works, the blowing rod is inserted into a hot metal ladle for blowing nitrogen which forms bubbles in the high temperature hot metal; bubbles are expanded after being heated to significantly reduce specific(unit) weight (SW) of the hot metal and the gas mixture, thereby the hot metal and the gas mixture are driven to flow upwards under the buoyancy effect and then floating slags are driven to move to the oblique ladle opening when the hot metal and the gas mixture float to the liquid level; in the slag removal process, quantity of slags is continuously reduced, and an exposed surface of the hot metal is continuously enlarged, until the slag is nearly completely removed. The device for slag expelling by blowing shortens the slag removal time of two minutes, reduces iron loss over 20% and generates good economic benefits.
Description
Technical field
The utility model relates to hot metal pretreatment, the blowing slag-removing device 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) blew 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 as the iron ladle sidewall.Also there is steel mill to adopt on the slag removal machine body, to set up 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 hot metal pretreatment blowing slag-removing device and become pursuing one's goal of these those skilled in the art.
The utility model content
Task of the present utility model provides a kind of hot metal pretreatment blowing slag-removing device, 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 utility model is as follows:
A kind of hot metal pretreatment blowing slag-removing device is arranged on the iron ladle slag removal machine platform, comprises guide rail, jockey sprocket, lifting drive, lift cart, inflatable bar and refractory segment;
Described 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 by jockey sprocket transmission lift cart;
Described inflatable bar is arranged on the lift cart, and refractory segment is connected the inflatable bar bottom.
Described hot metal pretreatment blowing slag-removing device also comprises pivoting support and adjustable seats, and described pivoting support connects guide rail top, and described adjustable seats connects the guide rail middle part, and described pivoting support and adjustable seats all are fixed on the slag removal machine platform.
Described hot metal pretreatment blowing slag-removing device also comprises guide roller, is arranged on the guide rail bottom.
The angle of inclination of described guide rail is perpendicular to the hot-metal bottle tipping angle.
Described lift cart comprises car body, clamper and guiding wheels, and described clamper is arranged on the car body, and described guiding wheels are arranged on the car body bottom, along guide rail movement; Described guide deflection sheave is the two-way roller bearing of the adjusting of adjustable eccentric; Described clamper clamping inflatable bar, described inflatable bar slides on guide rail with lift cart.
Described lifting drive comprises gear reducing motor, sprocket wheel, chain and support, described gear reducing motor output shaft is a solid shaft, connect sprocket wheel by shaft coupling, described lifting drive is fixed on the support of steel plate welding, is arranged on the slag removal machine platform; Described 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.
Described 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 described refractory segment is 2.8 meters.
The utility model is arranged the blowing slag-removing device 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 blowing slag-removing device of the present utility model, 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 hot metal pretreatment blowing slag-removing device of the present utility model.
Fig. 2 is the synoptic diagram of hot metal pretreatment blowing slag-removing device practice among the embodiment of the present utility model.
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 drawings and Examples the utility model is elaborated.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of hot metal pretreatment blowing slag-removing device, 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.
Iron ladle 12 tops are provided with the petticoat pipe 11 that gathers dust, and slag removal machine 14 platforms are provided with the operation room 13 of skimming.
Actual service condition of the present utility model is as follows:
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 by 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 by 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 as follows: drive unit is used to drive the lifting of inflatable bar.The gear reducing motor output shaft is a solid shaft, connects sprocket wheel by 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 is subjected to gravity and environment thermal radiation deflection deformation, steel sheet 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, bearing support, 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, bolt hole on the bearing is made slotted hole, guide rail and bearing is welded after debugging is finished 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.
normally treat seat in the plane, working position, maintenance position at lift cart respectively are provided with a limit switch control.
In summary, the utility model is arranged the blowing slag-removing device 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 blowing slag-removing device of the present utility model, 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 illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim the variation of the foregoing description, modification etc.
Claims (8)
1. a hot metal pretreatment blowing slag-removing device is arranged on the iron ladle slag removal machine platform, it is characterized in that: comprise guide rail, jockey sprocket, lifting drive, lift cart, inflatable bar and refractory segment;
Described 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 by jockey sprocket transmission lift cart;
Described inflatable bar is arranged on the lift cart, and refractory segment is connected the inflatable bar bottom.
2. hot metal pretreatment blowing slag-removing device as claimed in claim 1, it is characterized in that: also comprise pivoting support and adjustable seats, described pivoting support connects guide rail top, and described adjustable seats connects the guide rail middle part, and described pivoting support and adjustable seats all are fixed on the slag removal machine platform.
3. hot metal pretreatment blowing slag-removing device as claimed in claim 1 is characterized in that: also comprise guide roller, be arranged on the guide rail bottom.
4. hot metal pretreatment blowing slag-removing device as claimed in claim 1, it is characterized in that: the angle of inclination of described guide rail is perpendicular to the hot-metal bottle tipping angle.
5. hot metal pretreatment blowing slag-removing device as claimed in claim 1 is characterized in that: described lift cart comprises car body, clamper and guiding wheels, and described clamper is arranged on the car body, and described guiding wheels are arranged on the car body bottom, along guide rail movement; Described guide deflection sheave is the two-way roller bearing of the adjusting of adjustable eccentric; Described clamper clamping inflatable bar, described inflatable bar slides on guide rail with lift cart.
6. hot metal pretreatment blowing slag-removing device as claimed in claim 1, it is characterized in that: described lifting drive comprises gear reducing motor, sprocket wheel, chain and support, described gear reducing motor output shaft is a solid shaft, connect sprocket wheel by shaft coupling, described lifting drive is fixed on the support of steel plate welding, is arranged on the slag removal machine platform; Described 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.
7. hot metal pretreatment blowing slag-removing device as claimed in claim 1 is characterized in that: described inflatable bar is two-tube cover, and its outer tube diameter is 90mm, and the length of inflatable bar is 13 meters.
8. hot metal pretreatment blowing slag-removing device as claimed in claim 1 is characterized in that: the length of described refractory segment is 2.8 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205171155U CN201762372U (en) | 2010-09-02 | 2010-09-02 | Hot metal pretreatment device for slag expelling by blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205171155U CN201762372U (en) | 2010-09-02 | 2010-09-02 | Hot metal pretreatment device for slag expelling by blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201762372U true CN201762372U (en) | 2011-03-16 |
Family
ID=43714982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205171155U Expired - Fee Related CN201762372U (en) | 2010-09-02 | 2010-09-02 | Hot metal pretreatment device for slag expelling by blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201762372U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928801A (en) * | 2010-09-02 | 2010-12-29 | 宝钢工程技术集团有限公司 | Blowing slag-removing equipment for molten iron pretreatment |
| CN106337103A (en) * | 2015-07-07 | 2017-01-18 | 宝钢工程技术集团有限公司 | Rotary blowing slag-driving device assembly and use method thereof |
| CN107741162A (en) * | 2017-10-09 | 2018-02-27 | 铜陵安东铸钢有限责任公司 | A kind of device for clearing up electric arc furnaces fire door slag |
| CN109702182A (en) * | 2019-03-06 | 2019-05-03 | 济南北兴机械设备有限公司 | A kind of full-automatic mucking machine |
| CN112063795A (en) * | 2020-08-31 | 2020-12-11 | 钢铁研究总院 | Slag layer thickness measuring device and method |
-
2010
- 2010-09-02 CN CN2010205171155U patent/CN201762372U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928801A (en) * | 2010-09-02 | 2010-12-29 | 宝钢工程技术集团有限公司 | Blowing slag-removing equipment for molten iron pretreatment |
| CN101928801B (en) * | 2010-09-02 | 2012-09-12 | 宝钢工程技术集团有限公司 | Blowing slag-removing equipment for molten iron pretreatment |
| CN106337103A (en) * | 2015-07-07 | 2017-01-18 | 宝钢工程技术集团有限公司 | Rotary blowing slag-driving device assembly and use method thereof |
| CN106337103B (en) * | 2015-07-07 | 2019-07-30 | 宝钢工程技术集团有限公司 | Rotary blowing slag-removing device assembly and its application method |
| CN107741162A (en) * | 2017-10-09 | 2018-02-27 | 铜陵安东铸钢有限责任公司 | A kind of device for clearing up electric arc furnaces fire door slag |
| CN109702182A (en) * | 2019-03-06 | 2019-05-03 | 济南北兴机械设备有限公司 | A kind of full-automatic mucking machine |
| CN112063795A (en) * | 2020-08-31 | 2020-12-11 | 钢铁研究总院 | Slag layer thickness measuring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180902 |