CN101054607A - Processing technique for steel smelting casting residue - Google Patents
Processing technique for steel smelting casting residue Download PDFInfo
- Publication number
- CN101054607A CN101054607A CNA2006100255627A CN200610025562A CN101054607A CN 101054607 A CN101054607 A CN 101054607A CN A2006100255627 A CNA2006100255627 A CN A2006100255627A CN 200610025562 A CN200610025562 A CN 200610025562A CN 101054607 A CN101054607 A CN 101054607A
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- China
- Prior art keywords
- steel
- slag
- residual
- ladle
- slag ladle
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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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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- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A steel-making casting residual dregs craft includes: directly overturning the casting residual dregs to the inner wall for over spraying, and setting in a cinder ladle having grid frame. The process substantially avoids the phenomenon that residual steel sticks to the cinder ladle inner wall, improves the cinder ladle usage velocity and prolongs the service life of the cinder ladle. The residual steel is automatically cut into small steel block with standard size which can be used directly into steel-making rotating tank so as to reduce big remnant steel transfer and big remnant steel cutting, greatly decrease the recovery cost of the big remnant steel.
Description
Technical field
The present invention relates to a kind of treatment process of making steel the slag that produces, be particularly useful for steel smelting casting residue.
Background technology
At steelworks, can produce a large amount of residual casting slags every day, this slag is molten steel in the ladle remaining molten steel and the mixture of slag behind continuous casting or ingot casting, the residual casting slag that produces needs to shift as early as possible the operation sequence that enters next step, the treatment process of existing residual casting slag generally is such: utilize slag car that empty slag ladle is transported to continuous casting or the ingot casting zone connects the slag point, and with driving a vehicle the residual casting slag overturning in the ladle in empty slag ladle, the slag ladle that will connect slag with tank car is transported to the workshop of dropping hammer and carries out overturning again, under most situation, the surface of slag ladle is stained with cold steel, at this moment need to strike jar operation or residual steel cut away after use again, after residual steel disposed, need just can proceed the transfer operation of residual casting slag afterwards to filling up the slag operation in the slag ladle.In above-mentioned residual casting slag treating processes, exist following shortcoming: 1) the residual bloom in the slag charge is too big, can't directly advance steel-making converter and use, and need reject and advance the steel-making converter use again after other place cuts into specified dimension; 2) because the residual steel in the slag charge is bonded on the slag ladle inwall easily, the operation that must strike jar operation or cut residual steel, and can slag ladle being caused damage when striking jar operation or cutting residual steel has a strong impact on the turnover and the work-ing life of slag ladle; 3) pad jar operation airborne dust is big, not only bad for environmental protection, and can cause very big injury to operator's health.
Summary of the invention
The objective of the invention is to the defective according to prior art, design a kind of new processing technique for steel smelting casting residue, it is too big to have solved in the prior art slag charge residual bloom, can't directly enter steel-making converter and use, and influence the turnover of slag ladle and the problem in work-ing life.
A kind of processing technique for steel smelting casting residue is characterized in that the direct overturning of residual casting slag was carried out spraying operation at inwall, and inner being placed with in the slag ladle of grills.
The spraying operation of above-mentioned slag ladle inwall, it is characterized in that the liming that will stir is sprayed at the bottom of big slag ladle inwall and the inner pot with spray gun on.Select for use dry hydrate as spray material; be because dry hydrate dissolves in water soon; and be easy to form protective membrane on warm sludge jar surface; spraying effect is fine; adding lime is the required pair material of steel-making, can order low price in batches; can in slag, not increase extra chemical element yet, help the later use and the exploitation of slag.
The slag ladle inwall is carried out the dust pollution of spraying operation can reduce pad jar operation the time, a large amount of dust that produces in the time of need be when having avoided adopting traditional method with jar operation of waste steel slag pad.Reduce the frequency that sticking jar phenomenon takes place in producing, improved working efficiency.Use the effect that has reached conventional cushion jar technology after this technology, a sticking jar phenomenon no longer takes place basically, improved working efficiency.
The above-mentioned grills that is placed in the slag ladle, space segmentation in the slag ladle is become several piece, every length and width height is respectively between 400mm～1000mm, the length and width height that further preferably is partitioned into is the grid between 500mm～600mm respectively, and the height of grid upper surface is positioned at below the slag ladle mouth 300mm at least.Effect is separated into fritter with steel (iron) slag to the slag ladle of handling through the interpolation grid because the lattice of grid break, being transported to the workshop of dropping hammer turns over jar and pours out that to carry out cooled slag stone roller very easily broken, the slag stone roller is broken into the size of grid grid voluntarily under most of situation, improved the slag processing efficiency, reduced processing cost, slag steel (iron) can be reached rapidly into stove weight, dimensional standard, and size in above-mentioned scope between clinker when entering steel-making converter, melt easily, can save energy, reduce cost.
Use above-mentioned treatment process, at first the slag ladle inwall is sprayed, and in slag ladle inside grid is set as required, to be transported to continuous casting or ingot casting zone through the empty slag ladle of above-mentioned processing then and connect the slag point, in empty slag ladle, the slag ladle that will connect slag with tank car is transported to the workshop of dropping hammer and carries out overturning again with the residual casting slag overturning in the ladle.Owing to adopted technology provided by the present invention, slag can all be poured out basically, and the slag ladle inwall can not produce the phenomenon of dry slag, uses dried slag to after the operation of slag ladle pad slag, the operation that can directly enter transhipment residual casting slag next time.
Because it is more to contain remaining molten steel in the residual casting slag, and liquid steel temperature is higher, so still need to fill up a jar operation after spraying, the purpose of pad jar mainly is to prevent that remaining molten steel from washing away the slag ladle wall repeatedly, plays the protection slag ladle, improves the slag ladle effect in work-ing life.But use jar operation of finished specification slag pad at present, so airborne dust is very little basically.
The beneficial effect of foregoing invention is:
1) owing to having increased the slag ladle inwall is carried out spraying process, stopped residual steel substantially and be bonded at slag ladle inwall phenomenon, improved slag ladle and used turnover rate, also prolonged the work-ing life of slag ladle simultaneously.Find by the statistical in producing, bring up to 250 times by former average 150 times the work-ing life of slag ladle now, and at present the unit price of every slag ladle be 170,000 yuan/only about.
2) because slag ladle connects slag goes to and placed the customization grills in the slag ladle, residual steel in the slag charge is divided into the steel billet of specified dimension automatically, can directly advance steel-making converter and use, reduce big residual steel and rejected and big residual steel cutting operation, significantly reduce the cost that big residual steel is recycled.According to present steel scrap market price, residual steel per ton reclaims cost-saved about 1000 yuan.
3) owing to use the operation of finished specification slag pad slag, greatly reduce the degree of reentrainment of dust.
4) avoided slag is carried out circular treatment, saved the energy, reduced energy consumption.
5) reduce the engineer machinery operation amount, reduced the frequency that engineering failure takes place.
Embodiment
Embodiment 1
The 5.3m that transports with 35 tons of slag car
3Little slag ladle is an example: on being sprayed at the bottom of slag ladle inwall and the inner pot with spray gun the liming that stirs, in slag ladle, place the grid of " three horizontal three is vertical " specification again, the volume of the little lattice of each that tell is 600mm*600mm*1000mm, and then in slag ladle, put into jar operation of specification slag pad, after the above end of job, this slag ladle is transported to continuous casting or the ingot casting zone connects the slag point.The ladle in steel-making zone is after watering the steel end, with the residual casting slag overturning in the ladle in empty slag ladle, after connecing the quantity of slag and reach some amount (top of the slag is advisable greater than 500mm from the distance on jar edge) in the slag ladle, the slag ladle that will connect slag with tank car is transported to the workshop of dropping hammer and carries out overturning.Use above-mentioned technology, sticking jar phenomenon can not take place, and after the employing grills, residual steel in the slag charge is divided into automatically meets the steel billet that converter steelmaking requires (600mm*600mm*1000mm) size, can directly advance steel-making converter uses, reduce big residual steel and rejected and big residual steel cutting operation, significantly reduced the cost that big residual steel is recycled, prolonged the work-ing life of slag ladle.
Claims (3)
1. a processing technique for steel smelting casting residue is characterized in that the direct overturning of residual casting slag was carried out spraying operation at inwall, and inner being placed with in the slag ladle of grills.
2. processing technique for steel smelting casting residue according to claim 1 is characterized in that the technology of the spraying operation of slag ladle inwall is: on being sprayed at the bottom of big slag ladle inwall and the inner pot with spray gun the liming that stirs.
3. processing technique for steel smelting casting residue according to claim 1, it is characterized in that the described grills that is placed in the slag ladle becomes several piece with the space segmentation in the slag ladle, between 400mm～1000mm, the length and width height that preferably is partitioned into is the grid between 500mm～600mm respectively respectively for every length and width height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100255627A CN101054607A (en) | 2006-04-10 | 2006-04-10 | Processing technique for steel smelting casting residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100255627A CN101054607A (en) | 2006-04-10 | 2006-04-10 | Processing technique for steel smelting casting residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101054607A true CN101054607A (en) | 2007-10-17 |
Family
ID=38794660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100255627A Pending CN101054607A (en) | 2006-04-10 | 2006-04-10 | Processing technique for steel smelting casting residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101054607A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342540B (en) * | 2008-08-25 | 2010-06-09 | 中冶宝钢技术服务有限公司 | Method for recycling casting residue |
| CN102896310A (en) * | 2012-10-23 | 2013-01-30 | 鞍钢股份有限公司 | Method for separating and recycling casting residues |
| CN103555868A (en) * | 2013-08-15 | 2014-02-05 | 南京梅山冶金发展有限公司 | Processing process for applying grid to treat remnant casting residue |
| CN103667551A (en) * | 2013-11-29 | 2014-03-26 | 南京梅山冶金发展有限公司 | Method for treating desulfuration slag through grating |
| CN104911285A (en) * | 2015-05-08 | 2015-09-16 | 北京首钢股份有限公司 | Casting steel slag waste processing method |
| CN109909486A (en) * | 2019-03-06 | 2019-06-21 | 鞍钢股份有限公司 | A kind of hot repair of steel ladle method |
| CN112143839A (en) * | 2020-08-28 | 2020-12-29 | 首钢京唐钢铁联合有限责任公司 | Slag pot grid installation method |
| CN115058547A (en) * | 2022-05-30 | 2022-09-16 | 马鞍山钢铁股份有限公司 | Thermal state casting residue recovery processing device and method and recovery application |
| CN116479214A (en) * | 2023-06-19 | 2023-07-25 | 江苏省沙钢钢铁研究院有限公司 | Synthetic slag and preparation method and application thereof |
-
2006
- 2006-04-10 CN CNA2006100255627A patent/CN101054607A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342540B (en) * | 2008-08-25 | 2010-06-09 | 中冶宝钢技术服务有限公司 | Method for recycling casting residue |
| CN102896310A (en) * | 2012-10-23 | 2013-01-30 | 鞍钢股份有限公司 | Method for separating and recycling casting residues |
| CN102896310B (en) * | 2012-10-23 | 2015-11-18 | 鞍钢股份有限公司 | A kind of method of casting residue separation and recovery |
| CN103555868A (en) * | 2013-08-15 | 2014-02-05 | 南京梅山冶金发展有限公司 | Processing process for applying grid to treat remnant casting residue |
| CN103667551A (en) * | 2013-11-29 | 2014-03-26 | 南京梅山冶金发展有限公司 | Method for treating desulfuration slag through grating |
| CN104911285A (en) * | 2015-05-08 | 2015-09-16 | 北京首钢股份有限公司 | Casting steel slag waste processing method |
| CN109909486A (en) * | 2019-03-06 | 2019-06-21 | 鞍钢股份有限公司 | A kind of hot repair of steel ladle method |
| CN109909486B (en) * | 2019-03-06 | 2020-03-31 | 鞍钢股份有限公司 | Hot repair method for molten steel tank |
| CN112143839A (en) * | 2020-08-28 | 2020-12-29 | 首钢京唐钢铁联合有限责任公司 | Slag pot grid installation method |
| CN115058547A (en) * | 2022-05-30 | 2022-09-16 | 马鞍山钢铁股份有限公司 | Thermal state casting residue recovery processing device and method and recovery application |
| CN116479214A (en) * | 2023-06-19 | 2023-07-25 | 江苏省沙钢钢铁研究院有限公司 | Synthetic slag and preparation method and application thereof |
| CN116479214B (en) * | 2023-06-19 | 2023-10-27 | 江苏省沙钢钢铁研究院有限公司 | Synthetic slag and preparation method and application thereof |
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Open date: 20071017 |