CN207655909U - A kind of molten iron drossing plate - Google Patents
A kind of molten iron drossing plate Download PDFInfo
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- CN207655909U CN207655909U CN201721505778.3U CN201721505778U CN207655909U CN 207655909 U CN207655909 U CN 207655909U CN 201721505778 U CN201721505778 U CN 201721505778U CN 207655909 U CN207655909 U CN 207655909U
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- removal device
- slag
- molten iron
- skimming
- slag removal
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Abstract
A kind of molten iron drossing plate, including slag removal device ontology, attached plate of skimming, rectangle pin hole is opened up in slag removal device body central line upper end, in slag removal device ontology lower end, Symmetrical Circular Arc is set, slag removal device body bottom portion is skimmed attached plate equipped with the rectangle consistent with hot-metal bottle mouth-shaped, and attached plate of skimming adds the slag trap that section is triangle；The excessive iron hole of several stepped arrangements is offered on the slag removal device ontology and several molten iron return ports are equipped on slag trap.Compared with prior art, the utility model has the beneficial effects that：1) replacement of slag removal device can be quickly carried out, the operating rate for shortening slag removal device replacing construction, improving mucking machine；2) efficiency of skimming is improved, iron loss is effectively reduced, reduces cost of skimming.
Description
Technical field
The utility model is related to a kind of molten iron drossing tool more particularly to a kind of molten iron drossing plates.
Background technology
Molten iron pretreatment is significant to improving steel quality, expansion kind.Desulfurizing iron is Liquid Iron Pretreatment Technology
One of the important means of, quality has larger improvement after desulfurizing iron.But desulfurizing iron treated scum.Its sulfur content is very high,
It is extremely harmful to the quality of steelmaking process and steel.Therefore, it needs to increase process of skimming after molten iron pretreatment, removes molten iron surface
Slag.For the steel mill that molten iron and realization less-slag melting especially for smelting low-sulfur steel grade operate, molten iron deslagging is particularly important.
This promotes the development of molten iron deslagging technology.Molten iron deslagging method mainly has mechanical slagging-off method, fishing slag method, deslagging method, skimming
Method, vacuum slag absorbing method and slag trap pushing off the slag method etc..Since mechanical slagging-off method equipment has, slagging-off is efficient, equipment is simple, is easy to
The advantages that operation, is widely used by iron and steel enterprise.
Mechanical slagging-off method is to make horizontal motion on molten iron face with slag removal device, and slag, which is clawed ladle, enters slag pan.
This kind of deslagging process slag moves on molten iron face, inherently generates scend and friction drive to molten iron, so with
Slag claws, and taking out of for molten iron is inevitable.Slag removal device immersion depth is by range estimation, it is impossible to accomplish the same slag of slag removal device immersion depth
Layer thickness is consistent, and each position thickness of slag layer is also different, and slag only claws a part of above if slag removal device has immersed shallow, skims
Plate immerses deeply, then slag removal device directly is taken off out molten iron.It slags tap to take off, the latter is belonged to when generally skimming.So taking off
Taking out of for molten iron is inevitable when slag, and the slag clawed forms block, illustrates to carry a large amount of iron, the iron skimmed in the slag clawed
Damage is more than 15kg/ tons of iron.
Chinese patent (application number 200820010079.6) disclose " a kind of Novel slag removal device " it is characterized in that：In slag removal device
Top is set there are two pin hole, and the through-hole utility model is opened in the middle part of slag removal device can be by middle through-hole by iron during skimming
Water returns to hot-metal bottle, takes off damage to reduce, but its through-hole immersion depth is constantly lost with it during slag removal device use
Constantly variation causes it to hinder slag and return the effect of iron and is gradually reduced, at the same smaller its of plate suqare of skimming skim it is less efficient, simultaneously
Shape and the cooperation of molten iron tank mouth are bad, and the effect that leads to problems such as to skim is undesirable.
Chinese patent (application number 201520449894.2) disclose " a kind of molten iron drossing plate " it is characterized in that：In slag removal device
Body central line upper end opens up rectangle pin hole, slag removal device ontology lower end be arranged Symmetrical Circular Arc, slag removal device body bottom portion be equipped with
The consistent rectangle of hot-metal bottle mouth-shaped is skimmed attached plate.The plate shape of skimming matches with molten iron tank mouth, and effect of skimming more is managed
Think, but can take more molten iron when skimming out of without excessive iron hole on slag removal device, cause a large amount of iron loss.
Chinese patent (application number 201520443823.1) disclose " a kind of slag removal device " it is characterized in that：By iron plate and the abdomen of overflowing
Board group at；It is equipped with one section long bar shaped web along centre position in the case where rectangle overflows iron plate, intermediate lateral is provided with one on excessive iron plate top
Rectangular shaped pin hole is equipped with the positioning pin being connect with mucking machine in pin hole, along the equidistant arranged in step shape of excessive iron plate width direction 3
~5 excessive iron holes.Although being provided with the 3-5 excessive iron along the excessive equidistant arranged in step shape of iron plate width direction on the slag removal device
Hole can reduce molten iron when skimming and take out of, reduce iron loss, but its slag removal device is rectangular, and shape is equally and molten iron
Tank mouth cannot coincide, and cause to leak slag at the angle of slag removal device end when skimming, and effect of skimming is bad, while it is low to reduce efficiency of skimming.
In short, for above-mentioned molten iron drossing machine slag removal device there are the problem of, be badly in need of developing a kind of large scale, replacement side
Just, iron loss is small, efficient Novel molten iron slag-holding plate of skimming.
Utility model content
The purpose of this utility model is to provide a kind of molten iron drossing plate, and replacement is convenient, iron loss is small, operating efficiency height of skimming.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of molten iron drossing plate, including slag removal device ontology, attached plate of skimming open up rectangle in slag removal device body central line upper end
Symmetrical Circular Arc is arranged in slag removal device ontology lower end in pin hole, and slag removal device body bottom portion is equipped with the square consistent with hot-metal bottle mouth-shaped
Shape is skimmed attached plate, and slag trap is equipped in the attached plate of skimming, and the slag trap section is triangle, and slag trap is equipped with several
A molten iron return port；The excessive iron hole of several stepped arrangements is offered on the slag removal device ontology.
The excessive iron hole is 3-5, laterally uniformly distributed arrangement, and longitudinal to press arranged in step shape, height is 100~200mm, wide
Degree is 50~100mm.
The circular shape and the hot-metal bottle horizontal cross sectional geometry of molten iron of inclining into hot-metal bottle when skimming are consistent, and press
Slag removal device center line is symmetrical.
The attached plate of skimming is symmetrical by slag removal device body central line, and height is 50~100mm, width direction and hot-metal bottle
The spacing of mouth is 30~50mm.
The length of the slag trap is consistent with attached plate of skimming, highly identical as attached plate of skimming, and width is 30~80mm.
The molten iron return port is 3-5, and section is circle, and a diameter of 10~30mm of Φ are equal along slag trap length direction
Portion arranges, its center line of width direction is consistent with slag trap center line.
Compared with prior art, the utility model has the beneficial effects that：
1) mode is attached using fixed pin, i.e., rectangle pin hole is opened up in slag removal device center line upper end, using positioning pin
Slag removal device and mucking machine are attached, bolt connecting mode has been discarded, can quickly carry out the replacement of slag removal device, shortens slag removal device
Replacing construction, the operating rate for improving mucking machine.
2) Symmetrical Circular Arc is set in slag removal device ontology lower end, circular shape and hot-metal bottle incline into hot-metal bottle when skimming
The horizontal cross sectional geometry of molten iron is consistent, makes it preferably coordinate to improve with hot-metal bottle by changing slag removal device lower end shape
Skim efficiency, reduce iron loss, reduce and skim cost.
3) the excessive iron hole of 3-5 rectangle is opened up on slag removal device ontology, and presses arranged in step shape, ensures slag removal device in work week
In phase, be always ensured that has the presence in iron hole of overflowing during skimming, and can molten iron effectively be returned to iron during skimming
Water pot greatly reduces iron loss.
4) it opens up rectangle in slag removal device bottom to skim attached plate, shape is consistent with hot-metal bottle mouth-shaped, and and hot-metal bottle
Mouth matches, and can making slag removal device by the attached plate of skimming of slag removal device lower end, preferably cooperation is skimmed to improve with molten iron tank mouth
Efficiency reduces iron loss, reduces cost of skimming.
5) in the slag trap for adding section in attached plate as triangle of skimming, and 3-5 round molten iron is opened up on slag trap
Return port can prevent molten iron slag from flowing back when skimming operation using slag trap, and can make the molten iron in slag using molten iron return port
It effectively flows back into hot-metal bottle, to improve efficiency of skimming, reduce iron loss.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of molten iron drossing plate of the utility model.
Fig. 2 is the A direction views of Fig. 1.
In figure：Overflow iron hole, 3- slag removal devices ontology, 4- of 1- pin holes, 2- skims attached plate, 5- molten iron return port, 6- slag traps.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1-Fig. 2, a kind of molten iron drossing plate, including slag removal device ontology 3, attached plate of skimming 4 are seen, at 3 center of slag removal device ontology
Line upper end opens up rectangle pin hole 1, Symmetrical Circular Arc is arranged in 3 lower end of slag removal device ontology, 3 bottom of slag removal device ontology is equipped with and hot-metal bottle
The consistent rectangle of mouth-shaped is skimmed attached plate 4, and slag trap 6 is equipped in the attached plate 4 of skimming, and 6 section of the slag trap is three
Angular, slag trap 6 is equipped with several molten iron return ports 5；Several stepped rows are offered on the slag removal device ontology 3
The excessive iron hole 2 of row.
The excessive iron hole 2 is 3-5, laterally portion's arrangement, longitudinal to press arranged in step shape, and height is 100~200mm,
Width is 50~100mm.Ensure slag removal device within the work period, being always ensured that has the presence in excessive iron hole during skimming.
The circular shape and the hot-metal bottle horizontal cross sectional geometry of molten iron of inclining into hot-metal bottle when skimming are consistent, and press
Slag removal device center line is symmetrical.
Crown height is the 50~80% of slag removal device height, and arc size is to incline to molten iron when skimming with hot-metal bottle
Horizontal cross-section spacing is 50~100mm.
The attached plate 4 of skimming is symmetrical by slag removal device body central line, and height is 50~100mm, width direction and molten iron
The spacing of tank mouth is 30~50mm.
Rectangle pin hole 1 is opened in above slag removal device center line, 30~50mm of height, 50~100mm of width.
The length of the slag trap 6 and attached plate 4 of skimming are consistent, highly identical as attached plate 4 of skimming, and width is 30~80mm.
The molten iron return port 5 is 3-5, and section is circle, a diameter of 10~30mm of Φ, along 6 length direction of slag trap
Equal portion's arrangement, its center line of width direction are consistent with 6 center line of slag trap.
Embodiment 1：
Rectangle pin hole 1 is opened up at slag removal device upper end center line-spacing slag removal device upper edge 40mm, 1 size of pin hole is height
30mm, width 50mm；Symmetrical Circular Arc is set in 3 lower end of slag removal device ontology, circular shape and hot-metal bottle incline to iron when skimming
The horizontal cross sectional geometry of molten iron is consistent in water pot, and symmetrical by slag removal device center line, and height is the 50% of slag removal device height,
Its arc size is that the horizontal cross-section spacing inclined to molten iron when skimming with hot-metal bottle is 50mm；3 are opened up on slag removal device ontology 3
A rectangle overflows iron hole 2, and size is height 100mm, width 50mm, laterally uniformly distributed arrangement, longitudinal to press arranged in step shape, most upper
Apart from pin hole lower end 50mm, the difference in height in adjacent excessive iron hole 2 is 50mm in the excessive iron hole at end；It is opened up in the lower end of slag removal device ontology 3
The spacing of attached plate of skimming 4, height 50mm, width direction and molten iron tank mouth is 30mm；It is three to add section in attached plate 4 of skimming
Angular slag trap 6, length and attached plate 4 of skimming are consistent, highly identical as attached plate 4 of skimming, width 30mm；In slag trap 6
On open up 3 round molten iron return ports 5, a diameter of Φ 10mm.
Embodiment 2：
Open up rectangle pin hole 1 at slag removal device upper end center line-spacing slag removal device upper edge 60mm, pin hole size be height 40mm,
Width 80mm；Symmetrical Circular Arc is set in 3 lower end of slag removal device ontology, circular shape and hot-metal bottle incline into hot-metal bottle when skimming
The horizontal cross sectional geometry of molten iron is consistent, and symmetrical by slag removal device center line, and height is the 65% of slag removal device height, circular arc
Size is that the horizontal cross-section spacing inclined to molten iron when skimming with hot-metal bottle is 80mm；3 rectangles are opened up on slag removal device ontology 3
Excessive iron hole 2, size are height 150mm, width 80mm, and laterally uniformly distributed to arrange, arranged in step shape is pressed in longitudinal direction, and the top is overflow
Apart from pin hole lower end 80mm, the difference in height in adjacent excessive iron hole is 80mm in iron hole；The lower end of slag removal device ontology 3 open up skim it is attached
The spacing of plate 4, height 80mm, width direction and molten iron tank mouth is 40mm；It is triangle to add section in attached plate 4 of skimming
Slag trap 6, length and attached plate 4 of skimming are consistent, highly identical as attached plate 4 of skimming, width 50mm；4 are opened up on slag trap 6
A circle molten iron return port 5, a diameter of Φ 20mm.
Embodiment 3：
Rectangle pin hole 1 is opened up at slag removal device upper end center line-spacing slag removal device upper edge 80mm, pin hole size is height
50mm, width 100mm；Symmetrical Circular Arc is set in 3 lower end of slag removal device ontology, circular shape and hot-metal bottle incline to iron when skimming
The horizontal cross sectional geometry of molten iron is consistent in water pot, and symmetrical by slag removal device center line, and height is the 80% of slag removal device height,
Its arc size is that the horizontal cross-section spacing inclined to molten iron when skimming with hot-metal bottle is 100mm；It is opened up on slag removal device ontology 3
The excessive iron hole 2 of 3 rectangles, size are height 200mm, width 100mm, and laterally uniformly distributed to arrange, arranged in step shape is pressed in longitudinal direction, most
Apart from pin hole lower end 100mm, the difference in height in adjacent excessive iron hole is 100mm in the excessive iron hole of upper end；It is opened in the lower end of slag removal device ontology 3
If attached plate of skimming 4, the spacing of height 100mm, width direction and molten iron tank mouth are 50mm；Skimming, attached plate 4 adds section
For the slag trap 6 of triangle, length is consistent with attached plate of skimming, highly identical as attached plate of skimming, width 80mm；In slag trap
5 round molten iron return ports 5, a diameter of Φ 30mm are opened up on 6.
Implementation result：
In certain iron and steel enterprise " pure magnesium desulfuration " molten iron preprocessing station, hydraulic slagger and the utility model cooperation pair are utilized
Molten iron capacity is the hot-metal bottle of 120t, carries out pilot production of skimming, and obtain good effect, specific as follows：
Pilot production of skimming after desulfurizing iron is carried out using a kind of molten iron drossing plate of the utility model, depeeling rate >=
Under conditions of 90%, slag-removing time is down to 6~8min, average 7.34min by former 12min, and slag-removing time shortens 4min or more；
Molten steel consumption is down to 7~10kg/t iron, average 8.56kg/t iron by 25kg/t iron, and molten steel consumption reduces 16kg/t iron
More than；Every piece of slag removal device tank number of skimming rises to 145~155 tanks/block by 90 tanks/block, and every piece of slag removal device tank number of skimming increases by 60 tanks
More than；In short, can effectively improve efficiency of skimming using the molten iron drossing plate of the utility model, shortening slag-removing time, improve and take off
Slag plate service life reduces molten steel consumption, and larger economic benefit will be generated to reduce process cost of skimming.
Claims (6)
1. a kind of molten iron drossing plate, including slag removal device ontology, attached plate of skimming open up rectangular pin in slag removal device body central line upper end
Symmetrical Circular Arc is arranged in slag removal device ontology lower end in hole, and slag removal device body bottom portion is equipped with the rectangle consistent with hot-metal bottle mouth-shaped
It skims attached plate, which is characterized in that slag trap is equipped in the attached plate of skimming, the slag trap section is triangle, slag trap
It is equipped with several molten iron return ports；The excessive iron hole of several stepped arrangements is offered on the slag removal device ontology.
2. a kind of molten iron drossing plate according to claim 1, which is characterized in that the excessive iron hole is 3-5, laterally uniformly distributed
Arrangement, longitudinal to press arranged in step shape, height is 100~200mm, and width is 50~100mm.
3. a kind of molten iron drossing plate according to claim 1, which is characterized in that the circular shape and hot-metal bottle incline to taking off
The horizontal cross sectional geometry of molten iron is consistent in hot-metal bottle when slag position, and symmetrical by slag removal device center line.
4. a kind of molten iron drossing plate according to claim 1, which is characterized in that the attached plate of skimming is by slag removal device ontology
Heart line is symmetrical, and height is 50~100mm, and the spacing of width direction and molten iron tank mouth is 30~50mm.
5. a kind of molten iron drossing plate according to claim 1, which is characterized in that the length of the slag trap and attached plate of skimming
Unanimously, highly identical as attached plate of skimming, width is 30~80mm.
6. a kind of molten iron drossing plate according to claim 1, which is characterized in that the molten iron return port is 3-5, section
For circle, a diameter of 10~30mm of Φ are arranged along the equal portion of slag trap length direction, its center line of width direction and slag trap center
Line is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505778.3U CN207655909U (en) | 2017-11-13 | 2017-11-13 | A kind of molten iron drossing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505778.3U CN207655909U (en) | 2017-11-13 | 2017-11-13 | A kind of molten iron drossing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207655909U true CN207655909U (en) | 2018-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721505778.3U Active CN207655909U (en) | 2017-11-13 | 2017-11-13 | A kind of molten iron drossing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207655909U (en) |
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2017
- 2017-11-13 CN CN201721505778.3U patent/CN207655909U/en active Active
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