CN105256087A - Method for primarily crushing desulfurized slag iron - Google Patents
Method for primarily crushing desulfurized slag iron Download PDFInfo
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- CN105256087A CN105256087A CN201510762056.5A CN201510762056A CN105256087A CN 105256087 A CN105256087 A CN 105256087A CN 201510762056 A CN201510762056 A CN 201510762056A CN 105256087 A CN105256087 A CN 105256087A
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- slag iron
- desulfurization
- wingdale
- slag
- iron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a method for primarily crushing desulfurized slag iron and belongs to the technical field of comprehensive utilization of resources. The method for primarily crushing the desulfurized slag iron comprises the following steps: obtaining limestone screened in a lime firing process; collecting the obtained limestone to a charging device; conveying the limestone to a desulfurization platform through the charging device; adding the limestone to a slag tank through the desulfurization platform; distributing the limestone on a top layer of slag iron relatively uniformly; and skimming liquid iron in the slag tank to obtain the slag iron. The method for primarily crushing the desulfurized slag iron is capable of solving the problem of poor primary crushing effect of the desulfurized slag iron; as a result, the problem of difficult subsequent primary crushing of the desulfurized slag iron due to that the present ladle of slag iron sticks to the previous ladle of slag iron to form a large lump after desulfurization skimming each time is avoided.
Description
Technical field
The present invention relates to steelmaking technical field, particularly a kind of desulfurization slag iron just breaking method.
Background technology
Along with the increase of steel-making cost pressure, Ge great steel mill strengthens cost declining dynamics, and the returning of desulfurization slag iron is eaten becomes an important cost declining project; First crushing process or the method for Ran Ge steel mill desulfurization slag are not quite similar.
Moving steel one, to make steel the desulfurization slag iron of granular magnesium desulfurization large because of iron-holder, in slag ladle, easily forms one stick together greatly, returning to eat and cause certain difficulty to the follow-up fragmentation of desulfurization slag iron and desulfurization slag iron; For this reason, need to develop a kind of technique easily making granular magnesium desulfurization slag iron just broken.
Summary of the invention
The invention provides a kind of desulfurization slag iron just breaking method, just crushing effect is poor to solve or partly solve desulfurization slag iron in prior art, after each desulphurization and slag skimming, the formation one that is sticked together of this cinder inclusion iron and upper cinder inclusion iron sticks together greatly, causes the technical problem of difficulty to the just fragmentation of follow-up desulfurization slag iron.
For solving the problems of the technologies described above, the invention provides the first breaking method of a kind of desulfurization slag iron and comprising the following steps: obtaining in lime calcining process and screen the Wingdale got off; The described Wingdale obtained is collected feeding device; By described feeding device, described Wingdale is transported to desulfurization platform; By described desulfurization platform, described Wingdale is added slag ladle; The cloth relatively uniform on described slag iron upper strata adds described Wingdale; To the molten iron drossing in slag ladle, obtain slag iron; Repeat to add described Wingdale at the cloth that described slag iron upper strata is relatively uniform, to the molten iron drossing in described slag ladle, obtain slag iron.
Further, the limestone granularity < 40mm under described sieve, ratio≤20% of granularity < 3mm.
Further, the limestone moisture < 5% under described sieve.
Further, described feeding device comprises drop-bottom batch can.
Further, by overhead traveling crane by the handling of described drop-bottom batch can to desulfurization platform.
Further, described desulfurization platform comprises: feed bin; Material feeder, is flexible coupling by first and is connected with described feed bin; Receiving hopper, is flexible coupling by second and is connected with described material feeder; Chute, one end is connected with described receiving hopper; Distributor, is connected with the described chute the other end.
Further, described feed bin top is provided with the hammer drill opening feeding device.
Further, confirm described bin-level situation, when material level lower than 1/3 time organize material loading, Wingdale is by putting into described feed bin by described feeding device.
Further, carry out by described distributor the add-on that Wingdale is set according to slag iron different in described slag ladle.
Desulfurization slag iron provided by the invention just breaking method screens by obtaining in steelmaking process the Wingdale got off, the Wingdale of acquisition is collected feeding device, by feeding device, Wingdale is transported to desulfurization platform, by desulfurization platform, Wingdale is added slag ladle, the cloth relatively uniform on slag iron upper strata adds Wingdale, to the molten iron drossing in slag ladle, repeat to add described Wingdale at the cloth that described slag iron upper strata is relatively uniform, to the molten iron drossing in described slag ladle, obtain slag iron, obtain slag iron and add Wingdale at the cloth that slag iron upper strata is relatively uniform at every bag molten iron drossing after terminating, this cinder inclusion iron and upper cinder inclusion iron are separated, solve the problem of the first crushing effect difference of desulfurization slag iron, after avoiding each desulphurization and slag skimming, the formation one that is sticked together of this cinder inclusion iron and upper cinder inclusion iron sticks together greatly, difficult problem is caused to the just fragmentation of follow-up desulfurization slag iron.
Accompanying drawing explanation
The schematic flow sheet of the first breaking method of desulfurization slag iron that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the desulfurization platform that Fig. 2 provides for the embodiment of the present invention.
Embodiment
See Fig. 1, a kind of desulfurization slag iron that the embodiment of the present invention provides just breaking method comprises the following steps:
Step 1, obtains in lime calcining process and screens the Wingdale got off.
Step 2, collects feeding device by the described Wingdale obtained.
Step 3, is transported to desulfurization platform by described feeding device by described Wingdale.
Step 4, adds slag ladle by described desulfurization platform by described Wingdale.
Step 5, the cloth relatively uniform on described slag iron upper strata adds described Wingdale.
Step 6, to the molten iron drossing in slag ladle, obtains slag iron.
Step 7, the cloth repeated described slag iron upper strata is relatively uniform adds described Wingdale, to the molten iron drossing in described slag ladle, obtains slag iron.
Introduce step 1 in detail.
Limestone granularity < 40mm under described sieve, ratio≤20% of granularity < 3mm.Limestone moisture < 5% under described sieve.
Introduce step 2 in detail.
Described feeding device comprises drop-bottom batch can 1.Wingdale is needed in steelmaking process, but there is certain granularity requirements for Wingdale, granularity is between 40-80mm, and granularity sifts in the meeting of below 40mm, and steelworks is discharged for the Wingdale of granularity at below 40mm, freight charges can be increased like this, and can the wasting of resources be caused, the Wingdale under sieve is collected in drop-bottom batch can 1, the Wingdale under sieve can be made to recycle, save freight charges, resource is recycled.
Introduce step 3 in detail.
By feeding device, Wingdale is transported to desulfurization platform.Particularly, in the present embodiment, by overhead traveling crane by drop-bottom batch can 1 handling to desulfurization platform, in other embodiments, by alternate manner as drop-bottom batch can 1 is allocated and transported to desulfurization platform by crane etc.Wingdale handling to desulfurization platform, has been saved space by feeding device, avoids using belt, has saved and has expended.
Introduce step 4 in detail.
By desulfurization platform, Wingdale being added slag ladle. described desulfurization platform comprises: feed bin 2, material feeder 4, receiving hopper 6, chute 7 and distributor 8.
Described feed bin 2 top is fixedly installed the hammer drill opening feeding device.Particularly, in the present embodiment, described feed bin 2 top is bolted the hammer drill being provided with and opening feeding device, in other embodiments, described feed bin 2 top by alternate manner as welding etc. be fixedly installed the hammer drill opening feeding device.Confirm described feed bin 2 material level situation, when material level lower than 1/3 time organize material loading, Wingdale is by putting into described feed bin 2 by described feeding device.
Described material feeder 4 is flexible coupling by first and 3 is connected with described feed bin 2.Particularly, in the present embodiment, described material feeder 4 is flexible coupling by rubber and is connected with described feed bin 2, particularly, in other embodiments, described material feeder 4 by alternate manner as copper litz wire to be flexible coupling etc. with as described in feed bin 2 be connected.
Described receiving hopper 6 is flexible coupling by second and 5 is connected with described material feeder 4.Particularly, in the present embodiment, described receiving hopper 6 is flexible coupling by rubber and is connected with described material feeder 4, particularly, in other embodiments, described receiving hopper 6 by alternate manner as copper litz wire to be flexible coupling etc. with as described in material feeder 4 be connected.
Described chute 7 one end is fixedly connected with described receiving hopper 6.Particularly, in the present embodiment, described chute 7 one end by welding be fixedly connected with described receiving hopper 6, in other embodiments, described chute 7 one end by alternate manner as bolt etc. is fixedly connected with receiving hopper 6.
Described distributor 8 is fixedly connected with described chute 7 the other end.Particularly, in the present embodiment, described distributor 8 is fixedly connected with described chute 7 by welding, in other embodiments, described distributor 8 by alternate manner as bolt etc. with as described in chute 7 be fixedly connected with.Carry out by described distributor 8 add-on that Wingdale is set according to slag iron different in described slag ladle.
Introduce the embodiment of the present invention in order to clearer, introduced from the using method of the embodiment of the present invention below.
In steelmaking process during lime calcining, need Wingdale, but have certain granularity requirements for Wingdale, granularity is between 40-80mm, granularity sifts in the meeting of below 40mm, steelworks is discharged for the Wingdale of granularity at below 40mm, can increase freight charges like this, and can cause the wasting of resources, Wingdale under sieve is collected in drop-bottom batch can 1, the Wingdale under sieve can be made to recycle, saved freight charges, resource is recycled.Limestone granularity < 40mm under sieve, ratio≤20% of granularity < 3mm.Limestone moisture < 5% under described sieve, with grab bucket, satisfactory Wingdale is put into drop-bottom batch can 1, through automobile be transported to desulfurization across, to drop-bottom batch can 1 handling of Wingdale be collected to desulfurization 11m platform with 10t overhead traveling crane, desulfurization post confirms feed bin 2 material level situation, when material level lower than 1/3 time organize material loading in time, Wingdale is put into 7m by drop-bottom batch can 1
3in feed bin 2, feed bin 2 top is provided with hammer drill, is opened by drop-bottom batch can 1 by hammer drill, and Wingdale falls in feed bin 2.After desulphurization and slag skimming terminates for the first time, desulfurization slag iron situation in slag ladle is confirmed by post, in order to shape piled up by the slag iron adapted in slag ladle under different slag iron, in order to effectively be kept apart by slag iron, Wingdale screen underflow needs to be arranged in desulfurization slag iron surface uniformly, then need to adjust Wingdale screen underflow add-on under distributor fixing situation, carry out by described distributor 8 add-on that Wingdale is set according to slag iron different in described slag ladle.Wingdale via feed bin 2-first be flexible coupling 3-material feeder 4-second be flexible coupling 5-receiving hopper 6-chute 7-distributor 8-to join in slag ladle-carry out the second bag molten iron drossing operation-cyclical operation subsequently; Generally each slag ladle can take up 4-6 bag desulfurization slag iron, and often bag molten iron drossing adds Wingdale at the cloth that slag iron upper strata is relatively uniform after terminating, and this cinder inclusion iron and upper cinder inclusion iron are separated.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. a desulfurization slag iron just breaking method, is characterized in that, comprise the following steps:
Obtain in lime calcining process and screen the Wingdale got off;
The Wingdale of acquisition is collected feeding device;
By described feeding device, described Wingdale is transported to desulfurization platform;
By described desulfurization platform, described Wingdale is added slag ladle;
The cloth relatively uniform on described slag iron upper strata adds described Wingdale;
To the molten iron drossing in described slag ladle, obtain slag iron;
Repeat to add described Wingdale at the cloth that described slag iron upper strata is relatively uniform, to the molten iron drossing in described slag ladle, obtain slag iron.
2. desulfurization slag iron according to claim 1 just breaking method, is characterized in that:
Limestone granularity < 40mm under described sieve, ratio≤20% of granularity < 3mm.
3. desulfurization slag iron according to claim 1 just breaking method, is characterized in that:
Limestone moisture < 5% under described sieve.
4. desulfurization slag iron according to claim 1 just breaking method, is characterized in that:
Described feeding device comprises drop-bottom batch can (1).
5. desulfurization slag iron according to claim 4 just breaking method, is characterized in that:
By overhead traveling crane by described drop-bottom batch can (1) handling extremely described desulfurization platform.
6. desulfurization slag iron according to claim 1 just breaking method, it is characterized in that, described desulfurization platform comprises:
Feed bin (2);
Material feeder (4), by first be flexible coupling (3) be connected with described feed bin (2);
Receiving hopper (6), by second be flexible coupling (5) be connected with described material feeder (4);
Chute (7), one end is connected with described receiving hopper (6);
Distributor (8), is connected with described chute (7) the other end.
7. desulfurization slag iron according to claim 6 just breaking method, is characterized in that:
Described feed bin (2) top is provided with the hammer drill opening described feeding device.
8. desulfurization slag iron according to claim 6 just breaking method, is characterized in that:
Confirm described feed bin (2) material level situation, when material level lower than 1/3 time organize material loading, Wingdale is by putting into described feed bin (2) by described feeding device.
9. desulfurization slag iron according to claim 6 just breaking method, is characterized in that:
Carry out by described distributor (8) add-on that Wingdale is set according to slag iron different in described slag ladle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510762056.5A CN105256087B (en) | 2015-11-10 | 2015-11-10 | A kind of first breaking method of desulfurization slag iron |
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| CN201510762056.5A CN105256087B (en) | 2015-11-10 | 2015-11-10 | A kind of first breaking method of desulfurization slag iron |
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| CN105256087A true CN105256087A (en) | 2016-01-20 |
| CN105256087B CN105256087B (en) | 2017-08-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435060A (en) * | 2016-09-30 | 2017-02-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Modifying method of titanium-contained slag in molten iron |
| CN107876157A (en) * | 2017-11-01 | 2018-04-06 | 马鞍山钢铁股份有限公司 | A kind of method of the iron standby chemical industry iron powder of desulfurization slag |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1058143A (en) * | 1964-02-21 | 1967-02-08 | Fritz Forschepiepe | Method for the dressing of slag |
| CN202951539U (en) * | 2012-11-22 | 2013-05-29 | 张伟杰 | Pyrite cinder crushing device |
| CN103374635A (en) * | 2012-04-16 | 2013-10-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace slag recycling method |
| CN103468839A (en) * | 2013-09-06 | 2013-12-25 | 武汉钢铁(集团)公司 | Method for removing caked slag with thickness not smaller than 500mm from blast furnace body |
-
2015
- 2015-11-10 CN CN201510762056.5A patent/CN105256087B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1058143A (en) * | 1964-02-21 | 1967-02-08 | Fritz Forschepiepe | Method for the dressing of slag |
| CN103374635A (en) * | 2012-04-16 | 2013-10-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace slag recycling method |
| CN202951539U (en) * | 2012-11-22 | 2013-05-29 | 张伟杰 | Pyrite cinder crushing device |
| CN103468839A (en) * | 2013-09-06 | 2013-12-25 | 武汉钢铁(集团)公司 | Method for removing caked slag with thickness not smaller than 500mm from blast furnace body |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435060A (en) * | 2016-09-30 | 2017-02-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Modifying method of titanium-contained slag in molten iron |
| CN106435060B (en) * | 2016-09-30 | 2019-03-15 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of modifying of titanium-containing slag in a kind of molten iron |
| CN107876157A (en) * | 2017-11-01 | 2018-04-06 | 马鞍山钢铁股份有限公司 | A kind of method of the iron standby chemical industry iron powder of desulfurization slag |
| CN107876157B (en) * | 2017-11-01 | 2019-03-15 | 马鞍山钢铁股份有限公司 | A kind of method of the iron standby chemical industry iron powder of desulfurization slag |
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| CN105256087B (en) | 2017-08-29 |
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