CN204401043U - A kind of molten iron drossing device - Google Patents
A kind of molten iron drossing device Download PDFInfo
- Publication number
- CN204401043U CN204401043U CN201420775452.2U CN201420775452U CN204401043U CN 204401043 U CN204401043 U CN 204401043U CN 201420775452 U CN201420775452 U CN 201420775452U CN 204401043 U CN204401043 U CN 204401043U
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- CN
- China
- Prior art keywords
- molten iron
- slag
- air gun
- blast air
- skimming
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of molten iron drossing device, comprise for skimming slag rake and in the molten iron in inclined hot metal ladle blow and the top blast air gun that can be elevated.Molten iron drossing device of the present utility model, by arranging top blast air gun, blown in the molten iron in hot metal ladle by top blast air gun, gas floats and molten iron slag is driven to the side of the tank mouth near hot metal ladle, and molten iron slag is concentrated, and slag rake easy to use is skimmed, thus can efficiency of skimming be improved, shorten slag-removing time, reduce the use of iron loss and the subsidiary material of skimming of skimming, significantly improve the qualification rate into stove molten iron simultaneously.
Description
Technical field
The utility model belongs to technical field of hot metal pretreatment, and specifically, the utility model relates to a kind of molten iron drossing device.
Background technology
Molten iron in hot metal ladle is after composite blowing, and high pyrite cinder enrichment, needs effectively to remove, and prevents from returning sulphur when converter smelting.Existing slag skimming method is directly by collecting and assemble the desulfurization slag that desulfurization produces with the hot metal ladle surface of slag rake after desulfurization, after taking off hot metal ladle mouth, slightly pauses in taking off below slag ladle again.
The containing sulphur-slag that desulfurization produces, is almost distributed on molten iron face, the restriction of mode of skimming by hot metal ladle geometrical shape and mechanical plate in hot metal ladle, not only takes off the top of the slag large, and existence is skimmed at " dead angle ", and the molten iron drossing time is long, and molten iron of skimming loss is large.
Utility model content
The utility model provides a kind of molten iron drossing device, and object improves efficiency of skimming, and improves molten steel quality.
To achieve these goals, the technical scheme that the utility model is taked is: a kind of molten iron drossing device, comprise for skimming slag rake and in the molten iron in inclined hot metal ladle blow and the top blast air gun that can be elevated.
Described slag rake is connected with the clutch end of slag removal machine.
Described top blast air gun is vertically located at the top of described hot metal ladle.
Described top blast air gun is connected with providing the nitrogen pot of nitrogen.
Described top blast air gun is connected with hoisting appliance.
Molten iron drossing device of the present utility model, by arranging top blast air gun, blown in the molten iron in hot metal ladle by top blast air gun, gas floats and molten iron slag is driven to the side of the tank mouth near hot metal ladle, and molten iron slag is concentrated, and slag rake easy to use is skimmed, thus can efficiency of skimming be improved, shorten slag-removing time, reduce the use of iron loss and the subsidiary material of skimming of skimming, significantly improve the qualification rate into stove molten iron simultaneously.
Accompanying drawing explanation
This specification sheets comprises the following drawings, shown content respectively:
Fig. 1 is molten iron winding-up view;
Fig. 2 is molten iron drossing view;
Fig. 3 is molten iron drossing Controlling System schematic diagram;
Be labeled as in figure:
1, composite blowing rifle; 2, top blast air gun; 3, hot metal ladle; 4, tipple; 5, bright of molten iron; 6, the molten iron top of the slag; 7, slag rake; 8, slag removal machine; 9, hoisting appliance; 10, nitrogen pot; 11, hand stop valve; 12, manual ball valve; 13, motor-driven control valve; 14, tensimeter; 15, under meter.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail, object is that help those skilled in the art conceives utility model of the present utility model, technical scheme has more complete, accurate and deep understanding, and contributes to its enforcement.
As depicted in figs. 1 and 2, a kind of molten iron drossing device of the utility model, comprises slag rake 7 for skimming and for blowing and the top blast air gun 2 that can be elevated in the molten iron in inclined hot metal ladle 3.Top blast air gun 2 and composite blowing rifle 1 are the top being vertically located at hot metal ladle 3, and hot metal ladle 3 is arranged on tipple 4 for rotatable, and when normally jetting operation, composite blowing rifle 1 normally inserts hot metal ladle 3 operation, and top blast air gun 2 is at standby position.After the winding-up end of job, composite blowing rifle 1 rises to standby position, then tipple 4 action, certain angle that hot metal ladle 3 is tumbled to, top blast air gun 2 is inserted in hot metal ladle 3 downwards, air blowing operation is carried out in molten iron, molten iron slag is driven to the side by tank mouth by gas floating, and form the molten iron top of the slag 6 and the bright face 5 of molten iron, then slag removal machine 8 drives slag to harrow 7 actions, the molten iron top of the slag 6 by tank mouth is clawed hot metal ladle 3, completes operation of skimming.
Specifically, as shown in Figure 2, slag rake 7 is is connected with the clutch end of slag removal machine 8, and slag removal machine 8 is horizontal telescoping, and slag harrows the clutch end that 7 are connected to slag removal machine 8, can move around, carry out skimming operation along horizontal direction.
As shown in Figure 2, top blast air gun 2 parallels with composite blowing rifle 1, and top blast air gun 2 is driven by hoisting appliance 9 to carry out lifting action.This hoisting appliance 9 is vertically arranged at the side of tipple 4, and top blast air gun 2 is connected at the clutch end of vertical direction moving linearly with on hoisting appliance 9, thus top blast air gun 2 is moved up and down above hot metal ladle 3.
The gas that top blast air gun 2 blows out in molten iron is nitrogen, and therefore top blast air gun 2 is connected with providing the nitrogen pot 10 of nitrogen by pipeline.The bubble expanded by heating that nitrogen is formed in high temperature liquid iron makes molten iron and gas and vapor permeation proportion obviously reduce, thus orders about molten iron and gaseous mixture and upwards flow by buoyancy, drives molten iron slag to the tank mouth direction motion of tilting when flowing to liquid level.
As shown in Figure 3, the Controlling System of this molten iron drossing device comprises hand stop valve 11, manual ball valve 12, motor-driven control valve 13, tensimeter 14 and under meter 15, hand stop valve 11, motor-driven control valve 13, tensimeter 14 are connected by pipeline successively with under meter 15, the inlet mouth of hand stop valve 11 is connected with nitrogen pot 10, the air outlet of under meter 15 is connected with top blast air gun 2, the inlet mouth of manual ball valve 12 is connected with nitrogen pot 10, and the air outlet of manual ball valve 12 is connected with the pipeline be connected between motor-driven control valve 13 and tensimeter 14.After desulfurization, operation of skimming starts, iron ladle has tilted, pulling out on slag operation case by start button, nitrogen trip valve is opened, lower rifle, to position of slowing down (deceleration position is above molten iron), opens variable valve, continues lower rifle, rifle is down to rifle under the spacing stopping of air blowing, after allowing spray gun pilot lamp hand-manipulated bright, manually according to nitrogen flow pressure, and the rise and fall of the situation manual fine-tuning rifle of molten iron rolling, operative employee confirms that pulling out slag terminates, press stop button, spray gun is upwards promoted to upper limit, then stops.
Use the device for removing slag of said structure, slag-removing time can shorten 2-3 minute, and the iron loss of skimming reduces 20%, and subsidiary material of skimming reduce 50%, significantly improves the qualification rate into stove molten iron simultaneously.
In addition, iron (105 tons, 115 tons, 125 tons) is gone out required by different steel grade according to producing, according to the different molten iron level height going out the generation of iron difference, for keeping rational top blast air gun 2 depth of penetration to guarantee the effect of blowing slag-removing, as shown in Figure 3, it is spacing that hoisting appliance 9 can set A, B, C third gear, makes top blast air gun 2 rest on the At The Height of A, B, C tri-gears restrictions, to meet the demand of 105 tons, 115 tons, 125 tons iron water amount depth of penetration.During operation, according to going out iron to select the spacing of correspondence, handled easily, not needing every stove to measure, calculating.
Below by reference to the accompanying drawings the utility model is exemplarily described.Obviously, the utility model specific implementation is not subject to the restrictions described above.As long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; Or without improvement, above-mentioned design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model.
Claims (2)
1. a molten iron drossing device, comprising the slag rake for skimming, it is characterized in that: also comprise for blowing and the top blast air gun that can be elevated in the molten iron in inclined hot metal ladle; Described top blast air gun is vertically located at the top of described hot metal ladle; Described top blast air gun is connected with providing the nitrogen pot of nitrogen; Described top blast air gun is connected with hoisting appliance.
2. molten iron drossing device according to claim 1, is characterized in that: described slag rake is connected with the clutch end of slag removal machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775452.2U CN204401043U (en) | 2014-12-10 | 2014-12-10 | A kind of molten iron drossing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775452.2U CN204401043U (en) | 2014-12-10 | 2014-12-10 | A kind of molten iron drossing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204401043U true CN204401043U (en) | 2015-06-17 |
Family
ID=53424921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420775452.2U Expired - Fee Related CN204401043U (en) | 2014-12-10 | 2014-12-10 | A kind of molten iron drossing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204401043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555030A (en) * | 2016-12-06 | 2017-04-05 | 上海宏钢电站设备铸锻有限公司 | The ladle of vacuum-oxygen decarbonizing stove is slagged tap the method for toppling over |
| CN107012279A (en) * | 2016-01-27 | 2017-08-04 | 鞍钢股份有限公司 | It is a kind of to equal the molten iron drossing method blown and catch up with slag |
-
2014
- 2014-12-10 CN CN201420775452.2U patent/CN204401043U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012279A (en) * | 2016-01-27 | 2017-08-04 | 鞍钢股份有限公司 | It is a kind of to equal the molten iron drossing method blown and catch up with slag |
| CN106555030A (en) * | 2016-12-06 | 2017-04-05 | 上海宏钢电站设备铸锻有限公司 | The ladle of vacuum-oxygen decarbonizing stove is slagged tap the method for toppling over |
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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 |
Granted publication date: 20150617 Termination date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |