CN103170609A - Ferroalloy casting modeling device and ferroalloy casting modeling process in front of furnace - Google Patents
Ferroalloy casting modeling device and ferroalloy casting modeling process in front of furnace Download PDFInfo
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- CN103170609A CN103170609A CN2013100891976A CN201310089197A CN103170609A CN 103170609 A CN103170609 A CN 103170609A CN 2013100891976 A CN2013100891976 A CN 2013100891976A CN 201310089197 A CN201310089197 A CN 201310089197A CN 103170609 A CN103170609 A CN 103170609A
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Abstract
Provided are a ferroalloy casting modeling device and a ferroalloy casting modeling process in front of a furnace. The ferroalloy casting modeling device is composed of a ladle, a slag ladle, a ladle tip-over device, a slag and iron separating device, a casting tundish device and a cast iron car. The slag and iron separating device is composed of a slag and iron separating ladle and a tip-over device. A slag overflow port is arranged in the upper portion of the slag and iron separating ladle, a tap hole which is lower than the slag overflow port is arranged in the front portion of the slag and iron separating ladle, and a slag blocking wall is arranged inside the slag and iron separating ladle. The casting tundish device is composed of a casting tundish and a hydraulic cylinder. When the ferroalloy casting modeling device is used for conducting ferroalloy casting, firstly, the ladle and the slag ladle are used for conducting one-time slag removing to tap-off ferroalloy, secondly, the ladle is hoisted on the tip-over device, and the slag and iron separating device, the casting tundish device and a pig casting machine are used for carrying out secondary slag removing and casting modeling. According to the ferroalloy casting modeling process, through two times of slag removing, the effect of slag and iron separating is greatly improved, and not only is iron losing avoided, but also the slag content in the ferroalloy is lowered. Manual drossing is of no need, and labor power and cost are saved. Meanwhile, the granular size of the ferroalloy can be formed at one time according to the demands of users, and secondary processing and crushing are of no need.
Description
Technical field
The present invention relates to metal casting, particularly the front moulding by casting equipment of a kind of ferro-alloy furnace and this equipment of use carry out the technique of the front moulding by casting of ferro-alloy furnace.
Background technology
Before existing ferro-alloy furnace, moulding by casting equipment comprises the ladle of containing Molten Ferroalloys, cinder ladle, ladle pot tilting device, manually skims and push away skin instrument, ferroalloy ingot mould, manually or the Mechanical Crushing instrument; Part ferroalloy productor kind (as ferronickel, high-carbon chrome alloy) cylinder iron machine replace the ferroalloy ingot mould to carry out moulding by casting.
Use the said equipment to carry out cast before ferro-alloy furnace, technique commonly used is with ferroalloy ingot mould casting and machine casting cylinder iron at present.
---opening the iron alloy electric furnace tapping hole taps a blast furnace (slag iron mixes out), and---slag iron is botting after rolling, and------be transported to minute slag place and tentatively divide slag with the bridge crane ladle of slinging---manually carried out head and taken off with the stokehold hired car, ladle and cinder ladle to be pulled to pouring hall to adopt the technique of ferroalloy ingot mould casting to be: ladle to be pulled to the below of iron alloy electric furnace tapping hole with the stokehold hired car, two skim---utilizes ladle pot tilting device to pour into a mould in ingot mould and---stops cast---manually pushing away skin---after ingot mould waters and fills with and carry out the cast of next ingot mould again, push away skin, it is until the ferroalloy liquid castable is complete that------buckling die---finishing becomes the GB granularity, and---pack by warehouse-in---secondary manpower (or manpower adds machinery) is broken into the needed product granularity of ferroalloy user---naturally to be cooled to solid.
Adopt the technique of pig machine casting to be: at first ferroalloy liquid to be put into ladle together with slag liquid, float over slag liquid above ferroalloy liquid by manually pulling down, or overflow the inflow cinder ladle by row's mouth on ladle top; Then ladle is hung on the ladle pot tilting device that is positioned at the pig machine side with hanging device, start tipple, ladle is slowly tilted, ferroalloy liquid is poured in the chute of pig machine top, ferroalloy liquid flows in the pig mold groove of pig machine by chute, cast the bulk that needs, obtained ferroalloy ingot bar product after cooling.
The technique of above-mentioned employing ferroalloy ingot mould casting exists following defective and deficiency:
1. after ladle and cinder ladle car are pulled to the pouring bay operation, tentatively removed the gred by experience and operant level by flushing and casting personnel and bridge crane operating personnel, lack experience or misoperation as it, very easily produce and run iron in slag.
2. take off with two and take off slagging-off by manually carrying out head, labor intensive, and workman's working condition is poor, and labour intensity is large.
3. by manually skimming, quality is difficult to guarantee, the normal existence clean phenomenon of excessively skimming and skim.As excessively skimming, can cause and run iron in slag, especially two take off operation, in slag, band iron is kept away unavoidably, and the alloy host element rate of recovery is reduced, for improving the host element rate of recovery, generally two slags of taking off in operation all will be melted down, this can cause the unit power consumption of ferroalloy productor to raise; As it is unclean to skim, and can make dregginess raising in ferroalloy, affects product quality, need after cast for this reason, ferroalloy liquid do not push away the skin operation before solidifying, residue is turned down, and then the small part ferroalloy is shifted onto in the tail mould together with residue, increased the loss of finished iron alloy.
4. the ferroalloy ingot bar that makes because of this technique is larger, and for satisfying the ferroalloy user to the requirement of lumpiness, ferroalloy ingot bar that will lumpiness is larger before delivery carries out the secondary operations fragmentation with manpower or machinery, needs a large amount of artificial, equipment and place.
5. in manpower or Mechanical Crushing process, according to different ferroalloy productor kinds, can produce the small grain size substandard product more than 6.5%, can't directly use, only melt down or sale, cause economically greater loss.
6. the iron alloy block that becomes of manpower or Mechanical Crushing, shape and not of uniform size easily causes the segregation of ferroalloy productor composition, the result of use when affecting smelting iron and steel.
Although the technique of above-mentioned employing pig machine casting has overcome above-mentioned 4～6 defective, other several defectives still exist.
Summary of the invention
The objective of the invention is provides moulding by casting equipment and process before a kind of ferro-alloy furnace for the defective of above-mentioned prior art and deficiency, carry out moulding by casting before ferro-alloy furnace with this equipment and process, can cancel manually and skimming, improve slag iron separating effect, both improved the rate of recovery of ferroalloy host element, reduce again the dregginess of ferroalloy, and can press the continuous ingot bar of customer requirements granularity, do not need ingot bar is carried out the secondary operations fragmentation.
for achieving the above object, moulding by casting equipment before ferro-alloy furnace provided by the invention, except comprising the ladle identical with the prior art structure, cinder ladle, ladle pot tilting device and cast iron car, also comprise the cast tundish device that is arranged on described cast iron car top and be arranged on slag iron separator between cast tundish device and ladle pot tilting device, described cast tundish device is comprised of cast tundish, fixed mount and hydraulic cylinder, and cast tundish and fixed mount are slidably connected, and can move front and back on fixed mount, and the front end of cast tundish is connected with the push rod of hydraulic cylinder, described slag iron separator comprises that slag iron separates bag, excessive cinder notch is arranged at the top of separating bag at this slag iron, the front portion have become with the cinder notch level of overflowing 90 the degree, tapping hole lower than the cinder notch that overflows, there is the slag blocking wall of close tapping hole inside, bag is separated at the two ends of slag blocking wall with slag iron inwall is connected, the above separates bag with slag iron periphery one is flat, the below separates the bottom surface of bag and leaves the space of satisfying the cast flow with slag iron, slag iron separation bag is seated in the structure slag iron identical with described ladle pot tilting device to be separated on the bag tipple, it is corresponding with described cast tundish that slag iron separates the tapping hole that wraps, the top rear that slag iron separates bag is corresponding with the row's mouth of ladle on being seated in ladle pot tilting device.
Use the front moulding by casting equipment of above-mentioned ferro-alloy furnace to carry out the technique of the front moulding by casting of ferro-alloy furnace, comprise the following steps:
1. utilizing ladle and cinder ladle to carry out ferroalloy comes out of the stove and once slagging-off:
Open the iron alloy electric furnace tapping hole, make the slag iron in iron alloy electric furnace flow into together ladle, after ladle is filled, the ferroalloy slag that floats over the ferroalloy liquid upper is overflowed by row's mouth on ladle top, flow into cinder ladle, discharge but when there is no ferroalloy liquid and flowing out until ferroalloy slag is most of, the tapping hole of iron alloy electric furnace is blocked, fill in ladle this moment is ferroalloy liquid with a small amount of ferroalloy slag;
2. with crane, above-mentioned ladle through once slagging-off is hung on ladle pot tilting device; Then start the hydraulic cylinder of cast tundish device, will pour into a mould tundish and move to the cast station;
3. utilize slag iron separator, cast tundish device and pig machine to carry out secondary slagging-off and moulding by casting:
Start the hydraulic system of ladle pot tilting device, ladle is slowly overturn, the slag iron that the ferroalloy liquid with a small amount of ferroalloy slag that wherein loads is slowly flowed in slag iron separator separates in bag; Separate the rising gradually of ferroalloy liquid level in bag along with slag iron, the residual ferroalloy slag of the overwhelming majority is being advanced the molten iron side by the slag blocking wall barrier, overflows from the excessive cinder notch that is located at the top at last, completes the secondary slagging-off of ferroalloy liquid; Meanwhile, ferroalloy liquid successively flows to the cast tundish from the tapping hole of slag iron separation bag; By adjusting the lifting velocity of ladle pot tilting device, make the ferroalloy liquid level in the cast tundish keep stable, to guarantee ferroalloy liquid castable stability of flow; After the ferroalloy liquid evacuation in ladle, start the hydraulic control system of slag iron separator, make slag iron separate bag and slowly overturn to the tapping hole direction, all ferroalloy liquid that slag iron is separated in bag all are poured in the cast tundish; Ferroalloy liquid in the cast tundish is by being arranged on the mouth of a river of cast tundish bottom, be poured in the pit of the pig mold that at the uniform velocity moves with pig machine, cooled ferroalloy ingot bar runs to the pig machine end and falls into collecting vessel successively, obtains ferroalloy ingot bar finished product;
4. after a stove ferroalloy productor kind is all completed cast, start the hydraulic cylinder of cast tundish device, will pour into a mould tundish and move to the cleaning station, the cast tundish is cleared up; Then the slag iron of changing in slag iron separator separates bag, by above same steps as, carries out the moulding by casting of next stove ferroalloy productor kind.
Compared with prior art, the invention has the beneficial effects as follows:
1. by twice slagging-off, especially the secondary by slag iron separator removes the gred, slag iron separating effect is greatly improved, both stopped to run in ferroalloy slag iron, improved the rate of recovery of ferroalloy productor host element, reduced again the slag content in the ferroalloy productor, the ferroalloy productor quality is improved significantly.
2. need not manually skim, save manpower, alleviate labour intensity.
3. cancel ingot mould and the stokehold of pouring into a mould before the conventional iron alloying furnace and divided slag, Slag Tool and ferro-alloy furnace front finishing procedure, saved expense.
4. the iron alloy block granularity can be the special type fritter of 64～512 cubic centimetres of volumes according to the one-shot forming of user's needs, need not carry out secondary manpower or Mechanical Crushing, saves artificial, equipment and place; The off-grade iron alloy fine particle that produces can effectively reduce this part economic loss by original being down to more than 6.5% below 2%.
5. one-time formed iron alloy block shape and in the same size, do not produce ferroalloy productor segregation problem, and alloying is accurate.
Description of drawings
Fig. 1 is the Nomenclature Composition and Structure of Complexes schematic diagram of moulding by casting equipment before ferro-alloy furnace of the present invention;
In figure: the 1-pig machine, 2-cast tundish device, 3-(pours into a mould tundish) hydraulic cylinder, 4-pours into a mould tundish, 5-(pours into a mould tundish) fixed mount, the 6-tapping hole, the 7-slag blocking wall, 8-slag iron separates bag, the 9-cinder notch that overflows, 10-fixed mount A, 11-upset support body A, 12-hydraulic cylinder A, the 13-ladle pot tilting device, the 14-cinder ladle, 15-arranges mouth, the 16-ladle, 17-iron alloy electric furnace, 18-slag iron separator, 19-hydraulic cylinder B, 20-fixed mount B, 21-upset support body B.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, before ferro-alloy furnace of the present invention, moulding by casting equipment is comprised of ladle 16, cinder ladle 14, ladle pot tilting device 13, slag iron separator 18, cast tundish device 2 and pig machine 1.Wherein ladle, cinder ladle, ladle pot tilting device (being made of fixed mount A10, upset support body A11 and hydraulic cylinder A12) and the structure of pig machine are same as the prior art, and ladle 16 volumes are by iron alloy electric furnace and the design of each stove amount of tapping a blast furnace of different cultivars, different capabilities.Ingot bar machine 1 is comprised of sprocket wheel, chain, pig mold etc., be provided with the pit of same solid shape above pig mold by the alloy finished product requirement, each pit is comprised of a plurality of cambered surfaces, and the volume that each pit is installed in ferroalloy liquid is 64～512 cubic centimetres (concrete numerical value is determined according to user's needs).Slag iron separator 18 separates the bag tipple by slag iron separation bag 8 and forms with slag iron; Excessive cinder notch 9 is arranged at the top that slag iron separates bag 8, the front portion have become 90 degree with cinder notch 9 levels of overflowing, lower than the tapping hole 6 of the cinder notch 9 that overflows, there is the slag blocking wall 7 of close tapping hole 6 inside, bag 8 is separated at the two ends of slag blocking wall with slag iron inwall is connected, the above separates bag with slag iron periphery one is flat, the below separates the bottom surface of bag and leaves the space of satisfying the cast flow with slag iron, slag iron separates bag and is seated on slag iron separation bag tipple, it is identical with the structure of ladle pot tilting device that slag iron separates the bag tipple, is comprised of fixed mount B20, upset support body B21 and hydraulic cylinder B19.Cast tundish device 2 is comprised of cast tundish 4, fixed mount 5 and hydraulic cylinder 3; Cast tundish and fixed mount are slidably connected, and can move front and back on fixed mount, and the front end of cast tundish is connected with the push rod of hydraulic cylinder, control its front and back on fixed mount by hydraulic cylinder mobile.During installation, make the slag iron in slag iron separator separate the tapping hole 6 of bag 8 a little more than the top of cast tundish, and corresponding with the cast tundish, inject the cast tundish in order to separate from slag iron the ferroalloy liquid that flows out bag; Simultaneously, make the top rear of slag iron separation bag 8 a little less than the row's mouth that is seated in the ladle 16 on ladle pot tilting device, and corresponding with row's mouth, in order to receive the ferroalloy liquid that flows out from the ladle of upset.
Hydraulic system and the electric control gear of the equipment such as the ladle pot tilting device before ferro-alloy furnace in moulding by casting equipment, slag iron separator, cast tundish device, pig machine all integrate, by the PLC centralized Control, mutual linking is controlled with the automation that realizes pouring forming technology before ferro-alloy furnace.
In conjunction with Fig. 1, use the front moulding by casting equipment of above-mentioned ferro-alloy furnace to carry out the technique of the front moulding by casting of ferro-alloy furnace, carry out according to the following steps:
1. utilizing ladle and cinder ladle to carry out ferroalloy comes out of the stove and once slagging-off:
As shown in Figure 1, the tapping hole of the corresponding iron alloy electric furnace 17 of ladle 16 is placed, the adjacent ladle of cinder ladle 14 is placed, and make the top of cinder ladle corresponding with row's mouth 15 a little less than row's mouth 15, the rear end of ladle 16; Open the tapping hole of iron alloy electric furnace 17, slag iron in iron alloy electric furnace is flowed in ladle 16 together, after ladle 16 is filled, the ferroalloy slag that floats over the ferroalloy liquid upper is overflowed by row's mouth 15 on ladle 16 tops, flow in cinder ladle 14, discharge but when there is no ferroalloy liquid and flowing out until ferroalloy slag is most of, the tapping hole of iron alloy electric furnace blocked, in this moment ladle 16 dress be through after slagging-off once with the ferroalloy liquid of a small amount of ferroalloy slag;
2. with crane, above-mentioned ladle 16 through once slagging-off is hung on ladle pot tilting device 13; Then start the hydraulic cylinder 3 of cast tundish device 2, will pour into a mould tundish 4 and move to the cast station;
3. utilize slag iron separator 18, cast tundish device 2 and pig machine 1 to carry out secondary slagging-off and moulding by casting:
Start the hydraulic system of ladle pot tilting device 13, ladle 16 is slowly overturn, the slag iron that the ferroalloy liquid with a small amount of ferroalloy slag that wherein loads is slowly flowed in slag iron separator separates in bag 8; Separate the rising gradually of ferroalloy liquid level in bag along with slag iron, the residual ferroalloy slag overwhelming majority is being advanced the molten iron side by slag blocking wall 6 barriers, overflows from the excessive cinder notch 8 that is located at the top at last, completes the secondary slagging-off of ferroalloy liquid; Meanwhile, ferroalloy liquid continuously flows to cast tundish 4 from the tapping hole 6 that slag iron separates bag; By adjusting the lifting velocity of ladle pot tilting device 13, make the ferroalloy liquid level in the cast tundish keep stable, to guarantee the stable of ferroalloy liquid castable flow; After the ferroalloy liquid evacuation in ladle, start the hydraulic control system of slag iron separator 18, make slag iron separate bag 8 and slowly overturn to tapping hole 6 directions, slag iron is separated in bag in 8, all ferroalloy liquid all are poured in cast tundish 4; The water-gap pouring of the ferroalloy liquid of cast in tundish 4 by being arranged on cast tundish bottom is to pig machine 1 at the uniform velocity in the pit of mobile pig mold, cooled ferroalloy ingot bar runs to the pig machine end and falls into collecting vessel successively, obtains ferroalloy ingot bar finished product;
4. after a stove ferroalloy productor kind is all completed cast, start the hydraulic cylinder 3 of cast tundish device, will pour into a mould tundish 4 and move to the cleaning station, the cast tundish is cleared up; Then the slag iron of changing in slag iron separator separates bag 8, by above same steps as, carries out the moulding by casting of next stove ferroalloy productor kind.
Claims (2)
1. the front moulding by casting equipment of ferro-alloy furnace, comprise ladle (16), cinder ladle (14), ladle pot tilting device (13), cast iron car (1), it is characterized in that also comprising the cast tundish device (2) that is arranged on described cast iron car (1) top and be arranged on the slag iron separator (18) of pouring into a mould between tundish device (2) and ladle pot tilting device (13), described cast tundish device (2) is comprised of cast tundish (4), fixed mount (5) and hydraulic cylinder (3), cast tundish (4) is slidably connected with fixed mount (5), can be mobile before and after fixed mount (5) is upper, the front end of cast tundish (4) is connected with the push rod of hydraulic cylinder (3), described slag iron separator (18) comprises that slag iron separates bag (8), excessive cinder notch (9) is arranged at the top of separating bag (8) at this slag iron, the front portion have become with the cinder notch that overflows (9) level 90 the degree, tapping hole (6) lower than the cinder notch (9) that overflows, there is the slag blocking wall (7) of close tapping hole (6) inside, bag (8) is separated at the two ends of slag blocking wall with slag iron inwall is connected, the above separates bag (8) with slag iron periphery one is flat, the below separates the bottom surface of bag (8) and leaves the space of satisfying the cast flow with slag iron, slag iron separates bag (8) and is seated on the structure slag iron separation bag tipple identical with described ladle pot tilting device (13), it is corresponding with described cast tundish (4) that slag iron separates the tapping hole (6) that wraps (8), the top rear that slag iron separates bag (8) is corresponding with the row's mouth (15) of ladle on being seated in ladle pot tilting device (13).
2. right to use requires the front moulding by casting equipment of 1 described ferro-alloy furnace to carry out the technique of the front moulding by casting of ferro-alloy furnace, it is characterized in that comprising the following steps:
1) utilizing ladle (16) and cinder ladle (14) to carry out ferroalloy comes out of the stove and once slagging-off:
Open iron alloy electric furnace (17) tapping hole, make the slag iron in iron alloy electric furnace flow into together ladle (16), after ladle (16) is filled, the ferroalloy slag that floats over the ferroalloy liquid upper is overflowed by row's mouth (15) on ladle (16) top, flow into cinder ladle (14), discharge but when there is no ferroalloy liquid and flowing out until ferroalloy slag is most of, the tapping hole of iron alloy electric furnace is blocked, in ladle this moment (16), dress is ferroalloy liquid with a small amount of ferroalloy slag;
2) with crane, above-mentioned ladle (16) through once slagging-off is hung on ladle pot tilting device (13); Then start the hydraulic cylinder (3) of cast tundish device (2), will pour into a mould tundish (4) and move to the cast station;
3) utilize slag iron separator (18), cast tundish device (2) and pig machine (1) to carry out secondary slagging-off and moulding by casting:
Start the hydraulic system of ladle pot tilting device (13), make slowly upset of ladle (16), the slag iron that the ferroalloy liquid with a small amount of ferroalloy slag that wherein loads is slowly flowed in slag iron separator (18) separates in bag (8); Separate the rising gradually of ferroalloy liquid level in bag along with slag iron, the residual ferroalloy slag of the overwhelming majority is being advanced the molten iron side by slag blocking wall (7) barrier, overflows from the excessive cinder notch (9) that is located at the top at last, completes the secondary slagging-off of ferroalloy liquid; Meanwhile, ferroalloy liquid successively flows to cast tundish (4) from the tapping hole (6) of slag iron separation bag; By adjusting the lifting velocity of ladle pot tilting device (13), make the ferroalloy liquid level in cast tundish (4) keep stable, to guarantee ferroalloy liquid castable stability of flow; After the ferroalloy liquid evacuation in ladle, start the hydraulic control system of slag iron separator (18), make slag iron separate bag (8) and slowly overturn to the tapping hole direction, all ferroalloy liquid that slag iron is separated in bag all are poured in cast tundish (4); Ferroalloy liquid in cast tundish (4) is by being arranged on the mouth of a river of cast tundish bottom, be poured in the pit of the pig mold that at the uniform velocity moves with pig machine (1), cooled ferroalloy ingot bar runs to the pig machine end and falls into collecting vessel successively, obtains ferroalloy ingot bar finished product;
4) after a stove ferroalloy productor kind is all completed cast, start the hydraulic cylinder (3) of cast tundish device (2), will pour into a mould tundish (3) and move to the cleaning station, the cast tundish is cleared up; Then the slag iron of changing in slag iron separator (18) separates bag (8), by above same steps as, carries out the moulding by casting of next stove ferroalloy productor kind.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550783A (en) * | 2013-10-17 | 2015-04-29 | 攀钢集团攀枝花钢钒有限公司 | Production method and assembly line of iron alloy end products |
| CN113798450A (en) * | 2021-10-20 | 2021-12-17 | 内蒙古卓祥机电设备制造有限责任公司 | Automatic pouring system for casting process |
| CN115055652A (en) * | 2022-06-30 | 2022-09-16 | 北京易得优科技有限责任公司 | Fine casting method for ferroalloy |
| CN116765378A (en) * | 2023-08-22 | 2023-09-19 | 河北恒兴机械有限公司 | Cast iron casting residual liquid collector for electric furnace smelting and process thereof |
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| CN104550783A (en) * | 2013-10-17 | 2015-04-29 | 攀钢集团攀枝花钢钒有限公司 | Production method and assembly line of iron alloy end products |
| CN113798450A (en) * | 2021-10-20 | 2021-12-17 | 内蒙古卓祥机电设备制造有限责任公司 | Automatic pouring system for casting process |
| CN115055652A (en) * | 2022-06-30 | 2022-09-16 | 北京易得优科技有限责任公司 | Fine casting method for ferroalloy |
| CN116765378A (en) * | 2023-08-22 | 2023-09-19 | 河北恒兴机械有限公司 | Cast iron casting residual liquid collector for electric furnace smelting and process thereof |
| CN116765378B (en) * | 2023-08-22 | 2023-11-07 | 河北恒兴机械有限公司 | Cast iron casting residual liquid collector for electric furnace smelting and process thereof |
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Application publication date: 20130626 |