CN1740347A - Integrated molten iron top treating unit for desulfuring and scumming - Google Patents
Integrated molten iron top treating unit for desulfuring and scumming Download PDFInfo
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- CN1740347A CN1740347A CN 200410024600 CN200410024600A CN1740347A CN 1740347 A CN1740347 A CN 1740347A CN 200410024600 CN200410024600 CN 200410024600 CN 200410024600 A CN200410024600 A CN 200410024600A CN 1740347 A CN1740347 A CN 1740347A
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- slag
- molten iron
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Abstract
The integrated molten iron pre-treating unit for desulfurizing and scumming includes desulfurizing stirrer, scumming machine, and upper platform with fixed rotary feeding bin. The desulfurizing stirrer has cantilever on the rotating upright for rotation together with the upright, and the scumming machine has also rotating cantilever. The present invention has less covered area, reduced overall height, small size, low cost, fast conversion of different desulfurizing agents and treating agents, iron loss within 0.15 % and scumming rate over 90 %.
Description
Technical field the present invention relates to a kind of integrating device that is used for the blast-melted pretreatment desulfurizing of steel production enterprise (desiliconization), the renewal and the layout that relate generally to sweetener, drag for slag equipment and feeding device.
Existing desulfurization, the two procedures of skimming of background technology iron and steel enterprise need be finished at different station, generally is clipped to above-mentioned two stations by flatcar delivery hot metal ladle branch and carries out desulfurization and skim.Deslagging then needs the hot metal ladle tipple to assist (skimming), and not only facility investment is big, and floor space is big, and operates loaded down with trivial detailsly, and production efficiency is low.
On the other hand, because the molten iron thermal radiation is very serious, existing whipping device and feeding device are all processed very highly, reach 22-25 rice such as the KR whipping device height of Japanese diamond company.Existing feed hopper all is large vol, contains auxiliary material about the 20-30 ton.Above-mentioned design takes up room greatly, and the cost height is self-evident.And the major defect of large vol feed bin is to change treatment agent inconvenience, has a large amount of treatment agent long storage time not only to be easy to cause making moist, lump even lost efficacy in the storehouse again, and is difficult to problem such as cleaning.
As everyone knows, existing molten iron pretreatment slag skimming, employing be mechanical transmission or the hydraulically powered reciprocating type molten iron equipment of skimming.It is immersed into molten iron surface certain depth by the slag of being made by a refractory materials or steel plate rake that is installed on the cantilever, carries out straight line or curve to-and-fro movement along the molten iron surface, and the solid slag of the interior molten iron surface flotation of hot metal ladle (jar) is clawed one by one.Its main deficiency is: (1), the length consuming time of skimming, inefficiency.Generally need reciprocal tens times even tens times, the time spent was at 5-10 minute.(2), skim not thoroughly, the slagging-off rate is low.Under the situation that adds the poly-slag of the dry slag agent or the agent of skimming, the rate of skimming is the highest only to reach 80%.It is many that the halfway direct result of skimming causes converter, electric furnace to return sulphur exactly, the problem that lime consumption and energy consumption are big.(3), skimming is easy to take out of molten iron simultaneously, iron loss is generally about 0.5%.These problems have become puzzlement and have restricted the global problem that international iron and steel industry is enhanced productivity, reduced production costs, and direct economic loss every year of causing thus is all more than 500,000,000 dollars.
Summary of the invention the objective of the invention is to overcome the deficiency of above-mentioned prior art and equipment, and provide a kind of brand-new layout molten iron pretreatment desulfurizing, drag for the slag device systems, and key equipment wherein improved, substitutes, realize the integrated of modern technique and equipment, improve the production efficiency and the quality product of iron and steel enterprise, the present invention is called molten iron pretreatment desulfurizing and drags for the slag integrating device comprehensively.
To achieve these goals, the present invention has adopted following technical scheme.
A kind of molten iron pretreatment desulfurizing drags for the slag integrating device, comprises the desulfurization stirrer and the dragveyer that are arranged in the consecutive position, it is characterized in that: also comprise the upper mounting plate that is arranged in integrating device top, be fixed with rotatable loading hopper in the low capacity on the upper mounting plate; Wherein desulfurization stirrer cantilever is fixed on the rotary column and can rotates with rotary column, and front end can go to the hot metal ladle station, and the rear end batcher also can go in the low capacity under the rotatable loading hopper; Also rich its main axis rotation of dragveyer cantilever, front end can go to hot metal ladle and drag for the slag station.
Described rotary column two ends up and down flexibly connects with the swing bearing that is fixed in the swing bearing on the upper mounting plate and be fixed on the base respectively; Desulfurization stirrer cantilever is that track slides or the rolling lifting with the rotary column.
Clad one end and its rotating shaft flexibly connect, and rotating shaft is fixed on the base by support;
Rotating shaft is held concurrently and is hollow dedusting pipeline, and an end is slidingly connected with the slagging-off pipeline, and the flue on the clad communicates with this hollow dedusting pipeline.
Described dragveyer is a slag rake rotary type dragveyer.
The present invention has following characteristics: (1), employing swing arm lift whipping appts and slag rake rotary type dragveyer are handled the molten iron of same station, save the hot metal ladle flat car for transportation and the tilting mechanism of skimming, floor space is saved more than 30%, and investment reduces significantly, and operation efficiency obviously improves.(2), by adopting rotatable loading hopper in the low capacity, and sealing clad greatly reduces the height of device systems, makes whole height be reduced to 10-12 rice, system takes up room and reduces, construction costs reduces.(3), realized the quick flexible conversion of different sweetening agents, treatment agent, and problem such as making moist of having solved treatment agent long storage time causes in feed bin.
(4), owing to adopt slag to take off the automatical and efficient dragveyer of rotary type, changed in decades the situation of operation manually, realized on-line automation operation with system.Not only improved production efficiency greatly, reduced operator and the iron loss rate is controlled at 0.15% with interior (present domestic reciprocating type band iron rate average out to 0.5% of skimming, developed country's average out to 0.3%), the rate of skimming is increased to more than 90%.
Description of drawings Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of slag rake rotary type dragveyer among the present invention.
Fig. 3 is the structural representation of slag rake rotary type dragveyer slag rake driving mechanism.
Embodiment the present invention includes the desulfurization stirrer and the dragveyer that are arranged in the consecutive position as shown in Figure 1, also comprises the upper mounting plate 4 that is arranged in integrating device top, is fixed with rotatable loading hopper 5 in the low capacity on the upper mounting plate 4; Wherein desulfurization stirrer cantilever 2 is fixed on the rotary column 3 and with rotary column 3 rotations, front end can go to the hot metal ladle station, and rear end batcher 6 also can go in the low capacity under the rotatable loading hopper 5; Also rich its main shaft 11 rotations of dragveyer cantilever 7, front end can go to hot metal ladle and drag for the slag station, the slagging station, and the slag rake is changed stations such as station and coating pond.
Described rotary column flexibly connects with the swing bearing that is fixed in the swing bearing on the upper mounting plate 4 and be fixed on the base respectively at two ends about in the of 3; Desulfurization stirrer cantilever 2 is that track slides or the rolling lifting with rotary column 3.The power of lifting can be elevator, and chain type also can be hydraulic pressure, pneumatic drive.
Clad 1 one ends and its rotating shaft flexibly connect, and rotating shaft is fixed on the base by support;
Rotating shaft is a hollow dedusting pipeline, and the outer end is connected with the dust discharge pipeline, and the flue on the clad 1 communicates with this hollow dedusting pipeline.
As Fig. 2, shown in Figure 3, described dragveyer is a slag rake rotary type dragveyer, comprise dragveyer support 13, and the cantilever 7 that is connected with lifting main shaft 11 upper ends, in the front-end driven case 9 of cantilever 7, tooth bar 15 has been installed, it is meshed with the gear 14 of both sides, and two rotating shaftes 10 are fixed together the rear end of two gears 14 and two slags rake 8.Wherein slag rake 8 can be made by refractory materials, also can be made by other material.
The rear end of tooth bar 15 is connected with oil cylinder 16, and tooth bar 15 drives advance and retreat by oil cylinder 16, drives slag rake 8 by gear 14 and rotating shaft 10 and does turning motion.In fact, the drive form of realizing rotary type slag rake has multiple, and the rack-and-pinion method is wherein a kind of, and other driving method can be hydraulic pressure or powered version such as gear, cam, worm and gear, chain type, belt-type, oscillating oil cylinder.
Two slag rake 8 sides of closing up slag inclusion wherein are spination, are convenient to gather or clamp slag charge.
Hydraulic efficiency system (oil pump and fuel tank) 12 can be fixed on the rear end of cantilever 7.
In addition, cantilever 7 can be designed to forms such as hydraulic telescopic type, tilting-type according to customer requirements.
Claims (5)
1, a kind of molten iron pretreatment desulfurizing drags for the slag integrating device, comprise the desulfurization stirrer and the dragveyer that are arranged in the consecutive position, it is characterized in that: also comprise the upper mounting plate (4) that is arranged in integrating device top, be fixed with rotatable loading hopper (5) in the low capacity on the upper mounting plate (4); Wherein desulfurization stirrer cantilever (2) is fixed on that rotary column (3) is gone up and with rotary column (3) rotation, front end can go to the hot metal ladle station, and rear end batcher (6) also can go in the low capacity under the rotatable loading hopper (5); Also rich its main shaft (11) rotation of dragveyer cantilever (7), front end can go to hot metal ladle and drag for the slag station.
2, molten iron pretreatment desulfurizing as claimed in claim 1 drags for the slag integrating device, it is characterized in that: described rotary column (3) up and down two ends respectively be fixed in upper mounting plate (4) on swing bearing be connected with swing bearing on being fixed in base; Desulfurization stirrer cantilever (2) is that track slides or the rolling lifting with rotary column (3).
3, molten iron pretreatment desulfurizing as claimed in claim 2 drags for the slag integrating device, it is characterized in that: clad (1) one end and its rotating shaft flexibly connect, and rotating shaft is fixed on the base by support;
4, molten iron pretreatment desulfurizing as claimed in claim 3 drags for the slag integrating device, it is characterized in that: rotating shaft is held concurrently and is hollow dedusting pipeline, and an end is slidingly connected with the slagging-off pipeline, and the flue on the clad (1) communicates with this hollow dedusting pipeline.
5, drag for the slag integrating device as claim 1 or 2 or 3 or 4 described molten iron pretreatment desulfurizings, it is characterized in that: described dragveyer is a slag rake rotary type dragveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100246008A CN1296496C (en) | 2004-08-27 | 2004-08-27 | Integrated molten iron top treating unit for desulfuring and scumming |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100246008A CN1296496C (en) | 2004-08-27 | 2004-08-27 | Integrated molten iron top treating unit for desulfuring and scumming |
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| Publication Number | Publication Date |
|---|---|
| CN1740347A true CN1740347A (en) | 2006-03-01 |
| CN1296496C CN1296496C (en) | 2007-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100246008A Active CN1296496C (en) | 2004-08-27 | 2004-08-27 | Integrated molten iron top treating unit for desulfuring and scumming |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364698C (en) * | 2006-04-18 | 2008-01-30 | 盛富春 | Steel (iron) water slag-removing method |
| CN105603155A (en) * | 2015-11-25 | 2016-05-25 | 北京首钢国际工程技术有限公司 | KR molten iron desulphurization system employing ladle rotating table |
| CN111593170A (en) * | 2020-04-22 | 2020-08-28 | 鞍钢集团工程技术有限公司 | Optimization improvement method for reducing installation height of KR desulfurization system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02250912A (en) * | 1989-03-23 | 1990-10-08 | Kawasaki Steel Corp | Method and apparatus for continuously desulfurizing molten iron |
| JPH0660338B2 (en) * | 1989-09-28 | 1994-08-10 | 川崎製鉄株式会社 | Hot Metal Pretreatment Equipment in Metallurgical Furnace Casting Floor |
| JP3115514B2 (en) * | 1995-09-18 | 2000-12-11 | 株式会社スギノマシン | Chuck holder mounting device |
| CN2464734Y (en) * | 2001-01-04 | 2001-12-12 | 武汉钢铁设计研究总院 | Desulfuration lifting stirring driving device for molten iron |
| JP4631729B2 (en) * | 2006-01-31 | 2011-02-16 | コニカミノルタビジネステクノロジーズ株式会社 | Image forming apparatus and file transmission system |
-
2004
- 2004-08-27 CN CNB2004100246008A patent/CN1296496C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364698C (en) * | 2006-04-18 | 2008-01-30 | 盛富春 | Steel (iron) water slag-removing method |
| CN105603155A (en) * | 2015-11-25 | 2016-05-25 | 北京首钢国际工程技术有限公司 | KR molten iron desulphurization system employing ladle rotating table |
| CN111593170A (en) * | 2020-04-22 | 2020-08-28 | 鞍钢集团工程技术有限公司 | Optimization improvement method for reducing installation height of KR desulfurization system |
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| Publication number | Publication date |
|---|---|
| CN1296496C (en) | 2007-01-24 |
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Owner name: YT-SLD ENGINEERING SERVICE CO., LTD. Free format text: FORMER OWNER: SHENG FUCHUN Effective date: 20110728 |
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Effective date of registration: 20110728 Address after: 264003 No. four, No. 17, weft Road, Yantai hi tech Zone, Shandong Patentee after: YT-SLD Engineering Service Co., Ltd. Address before: 264003 Shandong Province, Yantai city Laishan District Yingchun Street No. 133 building A405 room sandacm company Patentee before: Sheng Fuchun |