CN106222341B - A kind of stainless steel slag slow cooling processing unit - Google Patents
A kind of stainless steel slag slow cooling processing unit Download PDFInfo
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- CN106222341B CN106222341B CN201610826783.8A CN201610826783A CN106222341B CN 106222341 B CN106222341 B CN 106222341B CN 201610826783 A CN201610826783 A CN 201610826783A CN 106222341 B CN106222341 B CN 106222341B
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- steel slag
- slow cooling
- slag
- mobile cover
- cover
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention provides a kind of stainless steel slag slow cooling processing unit, comprising: multiple slow cooling units in one line, each slow cooling unit are the closed structure formed by coaming plate, slag door and mobile cover, close or open slow cooling unit by control slag door；Mobile cover, the top of each slow cooling unit is arranged in the mobile cover translatablely, so that mobile cover on working position and position waited to switch over, spray facility, dedusting pipeline are integrated on each mobile cover, so as to in slow cooling unit steel slag dynamic spraying cooling water and be dusted, it is different according to steel slag to be processed, the mobile cover divides into the mobile cover of smelting steel slag again and casts remaining steel slag movement cover, smelts the mobile cover of steel slag and the mobile cover of the remaining steel slag of casting is run according to respective speed parameter respectively.The invention can overcome the shortcomings of that the production environment of conventional stainless steel slag nature slow cooling is severe, environmental protection is at high cost, choose different retarded cooling process also directed to the source difference of stainless steel slag, rational technology is efficient.
Description
Technical field
The present invention relates to slag processing fields, specifically, being related to a kind of stainless steel slag slow cooling processing unit.
Background technique
2015, China's stainless steel crude steel yield reached 2156.22 × 104T/a, pre-capita consumption about 16kg, basically reaches
The per capita consuming level of developed country.Estimate according to the quantity of slag (including electric furnace, AOD furnace slag etc.) that every production 1t stainless steel generates 20%
It calculates, China's stainless steel slag in 2015 is 431.24 × 104t/a。
Tenor about 10% in clinker according to statistics.Containing the valuable rare heavy metal such as nickel, chromium in stainless steel slag, such as locate
Manage it is improper be likely to result in serious environmental pollution, so recycling stainless steel slag in metal, realize stainless steel slag resource
Regeneration is the major issue that iron and steel enterprise faces.
Stainless steel slag retarded cooling process be stainless steel slag processing the first procedure, the environment protecting of steel slag slow cooling and point
It is that each enterprises of producing stainless steel is paid close attention to from effect.In stainless steel slag treatment process, in order to accelerate steel slag it is cooling and
Slag ladle turnaround speed, iron and steel enterprise is generally using cooling method of fetching water, since water can be with the top of the slag crack during fetching water
It penetrates into inside steel slag, under the action of high temperature, water is converted into vapor volume expansion, will spray along steel slag crack, no
In steel slag cooling procedure of becoming rusty can dusting, drift aerial as vapor sprays air-flow, environmental pollution phenomenon is extremely serious, seriously
Influence the environment of operation field.
Currently, domestic main stainless steel manufacturer takes according to the characteristic of electroslag in stainless steel slag and AOD furnace slag
Different steel slag retarded cooling process, be generally divided into the treatment process of two kinds of forms: (1) artificial watering is not provided with dust removal installation；(2)
Removing roof dust facility is arranged in artificial watering.The former cannot meet environmental requirements, and production environment is severe；The latter is removed using Wind Volume
Dirt facility not only increases plant and equipment investment, and improves the cost of production run.Environmental protection at present and steel mill
The strict demand of production cost, both conventional steel slag retarded cooling process have been unable to meet production requirement.
The invention can overcome the shortcomings of that the production environment of conventional stainless steel slag nature slow cooling is severe, environmental protection is at high cost, also
Different retarded cooling process is chosen for the source difference of stainless steel slag, there is higher economic benefit and social benefit.
Summary of the invention
The present invention provides a kind of stainless steel slag slow cooling processing units, so that steel slag slow cooling cost reduces, enhancing slow cooling
Dust removing effects.
According to another aspect of the present invention, a kind of stainless steel slag slow cooling processing unit is provided, comprising: multiple slow cooling
Unit, each slow cooling unit are the closed structure formed by coaming plate, slag door and mobile cover, are closed by control slag door
Or open slow cooling unit；Mobile cover, the top of each slow cooling unit is arranged in the mobile cover translatablely, so that movement covers on
Working position and waiting position switch over, and spray facility, dedusting pipeline are integrated on each mobile cover, so as to slow cooling list
It steel slag dynamic spraying cooling water in member and is dusted, different according to steel slag to be processed, the mobile cover divides into smelting again
Steelmaking slag is mobile to cover and casts remaining steel slag movement cover, and the mobile cover of smelting steel slag and the remaining steel slag movement cover of casting are respectively according to respective speed
Parameter operation.
Preferably, smelting the mobile movement speed switched between working position and waiting position that covers on of steel slag is 10~15m/min,
Casting the mobile movement speed switched between working position and waiting position that covers on of remaining steel slag is 10m/min.
Preferably, using motor, elevator or it is hydraulic in any mode drive mobile cover to move horizontally.
Preferably for steel slag slow cooling is smelted, controls the mobile cover of smelting steel slag and moves to working position, it will be equipped with smelting steel slag
Slag pot tipping in slow cooling unit, then smelt the mobile cover of steel slag and carry out the operation of dynamic shower water, also, in slag pot tipping and
During dynamic shower water, smelts the mobile cover of steel slag and remain lasting dedusting；After persistently spraying 1 hour, steel slag stirring is carried out
Operation；After the completion of stirring, continue dynamic shower water 24~36 hours, completes slow cooling.
Preferably for remaining steel slag slow cooling is cast, the mobile cover of the remaining steel slag of control casting moves to working position, will be equipped with the remaining steel slag of casting
Slag ladle be placed in slow cooling unit, into slag ladle after dynamic shower water 8~12 hours, by slag pot tipping in slow cooling unit,
Then it casts the mobile cover of remaining steel slag and carries out the operation of dynamic shower water, also, during slag pot tipping and dynamic shower water, more than casting
The mobile cover of steel slag continues dedusting always；Lasting spray is to carry out steel slag after 1 hour and stir operation；After the completion of stirring, continue dynamic
Shower water 16~24 hours, complete slow cooling.
Preferably, dust-break item is additionally provided on the slag door.
Detailed description of the invention
By the way that embodiment is described in conjunction with following accompanying drawings, features described above of the invention and technological merit will become
More understands and be readily appreciated that.
Fig. 1 be indicate the present embodiments relate to stainless steel slag slow cooling processing unit schematic diagram；
Fig. 2 is the sectional view of the line A-A cutting along Fig. 1.
Specific embodiment
The embodiment of stainless steel slag slow cooling processing unit of the present invention described below with reference to the accompanying drawings.This field
Those of ordinary skill will recognize, without departing from the spirit and scope of the present invention, can be with a variety of different
Mode or combinations thereof is modified described embodiment.Therefore, attached drawing and description are regarded as illustrative in nature, rather than
For limiting scope of protection of the claims.In addition, in the present specification, attached drawing is drawn not in scale, and identical attached drawing
Label indicates identical part.
The present invention provides a kind of stainless steel slag slow cooling processing unit.As shown in Figure 1 and Figure 2, at the stainless steel slag slow cooling
Managing device includes multiple slow cooling units in one line, and certain each slow cooling unit can also be separately located.Wherein, each slow cooling
Unit passes through coaming plate 7 and slag door 6 forms the slow cooling space of all round closure.In order to better seal effect, Ke Yi
Dust-break item 14, such as multiple bar plastic cloth to hang down from doorframe are set on slag door.It can be translated with Electronic control slag door 6
To close or open slow cooling unit.Slow cooling unit is again that smelting steel slag slow cooling unit and the remaining steel slag of casting are slow according to function different instructions
Cold unit, steel slag to be processed are to handle in each slow cooling unit.Slow cooling unit includes mobile cover, dedusting pipeline 10, removes
The equipment such as dirt facility 11, spray facility 13, wherein dust removal installation 11 can be such as wet dedusting facility.Mobile cover is movably
It is mounted on the top in the space that coaming plate 7 surrounds, forms closed slow cooling space.Spray facility 13, dedusting pipeline 10 are integrated in shifting
On dynamic cover, dedusting pipeline and wet dedusting facility 11 on each mobile cover are connected, and the dust of discharge is discharged from chimney 12.Therefore
Mobile cover has the double action of spray and dedusting, is moved horizontally using the mobile cover of motor driven, so that mobile cover can be in work
Make position and position is waited to switch over, in working position to the steel slag dynamic spraying cooling water (discontinuously spray) in slow cooling unit.But
The present embodiment is not limited to the drive form of mobile cover, for example, it is also possible to using elevator, hydraulic or other forms.This
Place will smelt the mobile cover on steel slag slow cooling unit and be known as smelting the mobile cover 5 of steel slag, will cast the movement on remaining steel slag slow cooling unit
Cover is known as casting the mobile cover 8 of remaining steel slag, and structure has no difference, is only the movement for the spray time control and mobile cover for spraying facility
The differences such as speed.
Slow cooling method is described in detail below with reference to the stainless steel slag slow cooling processing unit of Fig. 1 and Fig. 2.
A, B, C, D, E5 slow cooling units are shared in figure from can be seen that in Fig. 1 and Fig. 2, wherein E is to cast remaining steel slag to delay
Cold unit.
For smelting the slow cooling processing of steel slag, firstly, the electronic slag door 6 before coaming plate 7 is opened in advance, by the smelting of top
The mobile cover 5 of steel slag is moved to steel slag position to be tumbled in advance, also, opens blower and the dedusting of wet dedusting facility 11 in advance
Motor-driven valve on pipeline 10.Then, the multiple tank cars 1 of embracing for filling smelting steel slag respectively enter A, B, C, D smelting steel slag slow cooling list
In member, 4 operation of slag ladle of tumbling is carried out smelting in steel slag slow cooling unit.Consider for further environmental protection, for the steel that will tumble
Dust in empty slag ladle after slag is removed thoroughly, prevents an armful tank car from taking the dust not completely removed in slow cooling unit out of closed
The secondary pollution in workshop is caused in dedusting region, and after the completion of operation of tumbling, embracing tank car can stop smelting in steel slag slow cooling unit
Such as it outputs again for 2~4min minutes.It embraces after tank car 1 outputs, electronic slag door 6 is closed, and spray facility 13 starts, to smelting steel slag
Carry out water spray operation.Spray a period of time, such as after 1 hour, electronic slag door 6 is opened, loading machine 3 is opened to smelting steel slag slow cooling
Steel slag is carried out in unit and stirs operation, after the completion of stirring operation, closes electronic slag door 6, is continued opening spray facility 13 and is carried out
Spray operation.Dynamic spray for 24 hours~36 hour after, will be at the slag transport after slow cooling to secondary treatment field with loading machine 3
Reason.
The processing for casting remaining steel slag and smelting steel slag phase seemingly, open the electronic slag door 6 before coaming plate 7, by the casting of top in advance
The mobile cover 8 of remaining steel slag is moved to steel slag position to be tumbled in advance, also, opens the blower of wet dedusting facility 11 in advance and remove
Motor-driven valve on dirt pipeline 10.Armful tank car 1 for casting remaining steel slag is filled into casting in remaining steel slag slow cooling unit E, embraces tank car 1 for slag ladle
4 are placed in the remaining steel slag slow cooling unit of casting, embrace tank car 1 and output, and then, electronic slag door 6 is closed, and spray facility 13 starts, difference
In the slow cooling mode for smelting steel slag, the slow cooling mode for casting remaining steel slag is slag ladle of not tumbling first, but is placed in slow cooling list in slag ladle
After in first, spray facility carries out dynamic spray operation to steel slag more than the casting in slag ladle.Portion nozzle can be used only and spray one section
After time, such as 8~12 hours, open electronic slag door 6, embrace a tank car 1 and open to casting in remaining steel slag slow cooling unit, embrace a tank,
It tumbles slag ladle operation, then embraces tank car 1 and output, close electronic slag door 6, open whole nozzles of spray facility 13, sprayed
Drench operation.Spray a period of time, such as after 1 hour, electronic slag door 6 is opened, loading machine 3 is opened to the remaining steel slag slow cooling unit of casting
It carries out steel slag and stirs operation, after stirring operation, close electronic slag door 6, continue opening spray facility 13 and carry out spray work
Industry.For dynamic spray after 16~24 hours, loading machine 3 handles the slag transport after slow cooling to secondary treatment field.Using hanging
The included disk of vehicle 2 selects residual steel.
Wherein, the present embodiment is not intended to limit the form of tumbling of stainless steel slag, using embrace a tank car, electronic slag pot overturning trolley or
Person's other forms.
Stainless steel slag slow cooling processing unit of the invention takes two kinds of processing modes, technique for different steel slag sources
Rationally efficiently；It is integrated with spray and dust removal installation on mobile cover, realizes dynamic auto spray, is not required to using original artificial
It fetches water mode, post environment significantly improves.Further, it is possible to be dusted operation simultaneously, which overcome conventional roof dedustings
The disadvantage that power consumption is big, dust removing effects are bad realizes the high-effective dust-removing of post environment.
It is drained into sedimentation basin in addition, smelting steel slag and casting the draining that remaining steel slag annealing process generates, the door above sedimentation basin
Tailings is grabbed to the sediment stockyard progress drainage closed on, dries operation by formula clamshell crane 9, and suitable field is transported to after a period of time
Ground carries out related resource comprehensive utilization, and the water of sedimentation basin is connected with water processing establishment, and spray system is recycled to after filtering etc. reason
System, recycles.
The treating capacity for smelting steel slag will be far longer than casting residue, so what the movement speed of the mobile cover of metallurgical slag can be set
It is bigger, for example, the movement speed for smelting the mobile cover of steel slag is 10~15m/min.Casting the mobile movement speed covered of remaining steel slag is
10m/min。
The present invention also provides a kind of stainless steel slag slow cooling methods, are handled and are filled using above-described stainless steel slag slow cooling
It sets, which mainly utilizes that steel slag water quenching easily cracks and the characteristic of the easy dusting of slow cooling accelerates steel
Slag is cooling.After the completion of stainless steel slag is slagged tap, pours into slag ladle and transport to stockyard, then will fill hot steel slag by embracing tank car
Slag ladle is transferred to cooling zone.The stainless steel slag slow cooling method is divided into according to different steel slag sources smelts steel slag (mainly electricity
Clinker, AOD furnace slag) slow cooling method and cast remaining steel slag slow cooling method.Wherein, smelting steel slag slow cooling method is, slow smelting steel slag
Slag ladle operation of tumbling is carried out in cold unit.It embraces after tank car 1 outputs, closes electronic slag door 6, carry out water spray work to steel slag is smelted
Industry.Spray a period of time, such as after 1 hour, carry out steel slag and stir operation, after the completion of stirring operation, close electronic slag door 6,
Continue to spray operation.Dynamic spray was handled the slag transport after slow cooling to secondary treatment field after 24~36 hours.
In entire annealing process, operation is also dusted by cleaner.
In addition, embracing tank car can stop such as 2~4min minutes smelting in steel slag slow cooling unit after the completion of operation of tumbling
It outputs again.
The slow cooling method for casting remaining steel slag is placed on slag ladle 4 in the remaining steel slag slow cooling unit of casting, and electronic slag door 6 is closed, area
Not in the slow cooling mode for smelting steel slag, the slow cooling mode for casting remaining steel slag is slag ladle of not tumbling first, but is placed in slow cooling in slag ladle
After in unit, spray facility carries out dynamic spray operation to steel slag more than the casting in slag ladle.Spray is opened after such as 8~12 hours
Electronic slag door 6, carries out slag ladle operation of tumbling, and closes electronic slag door 6, carries out spray operation.After spraying such as 1 hour, into
Row steel slag stirs operation, after stirring operation, closes electronic slag door 6, continues to spray operation.Dynamic spray 16~24
After hour, the slag transport after slow cooling to secondary treatment field is handled.Residual steel is selected using the included disk of crane 2.
This method similarly carries out effective dedusting to embracing tumble process, shower water process of a tank car, realizes the high-effective dust-removing of post environment.Casting
Remaining steel slag contains the residual steel of bulk, can use the included disk of crane and selects residual steel.In entire annealing process, also pass through dedusting
Facility is dusted operation.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of stainless steel slag slow cooling processing unit characterized by comprising
Multiple slow cooling units in one line, each slow cooling unit are the closed knot formed by coaming plate, slag door and mobile cover
Slow cooling unit is closed or opened to structure by control slag door；Each slow cooling is arranged in mobile cover, the mobile cover translatablely
The top of unit is integrated with spray facility, removes so that mobile cover on working position and position is waited to switch on each mobile cover
Dirt pipeline, so as to in slow cooling unit steel slag dynamic spraying cooling water and be dusted,
Different according to steel slag to be processed, the mobile cover divides into the mobile cover of smelting steel slag again and casts remaining steel slag movement cover, smelting
The mobile cover of steelmaking slag and the mobile cover of the remaining steel slag of casting are run according to respective speed parameter respectively.
2. the apparatus according to claim 1, which is characterized in that
Smelting the mobile movement speed switched between working position and waiting position that covers on of steel slag is 10~15m/min, casts remaining steel slag and moves
The dynamic movement speed switched between working position and waiting position that covers on is 10m/min.
3. the apparatus according to claim 1, which is characterized in that using motor, elevator or it is hydraulic in any mode drive
Mobile cover moves horizontally.
4. the apparatus according to claim 1, which is characterized in that for smelting steel slag slow cooling, the mobile cover of steel slag is smelted in control
Working position is moved to, carries out dynamic spray for the mobile cover of steel slag in slow cooling unit, is then smelted equipped with the slag pot tipping for smelting steel slag
Water drenching operation, also, during slag pot tipping and dynamic shower water, it smelts the mobile cover of steel slag and remains lasting dedusting；
After persistently spraying 1 hour, carries out steel slag and stir operation；
After the completion of stirring, continue dynamic shower water 24~36 hours, completes slow cooling.
5. the apparatus of claim 2, which is characterized in that for casting remaining steel slag slow cooling, the mobile cover of remaining steel slag is cast in control
Working position is moved to, will be placed in slow cooling unit equipped with the slag ladle for casting remaining steel slag, dynamic shower water 8~12 hours into slag ladle
Afterwards, it by slag pot tipping in slow cooling unit, then casts the mobile cover of remaining steel slag and carries out the operation of dynamic shower water, also, incline in slag ladle
Turn over and dynamic shower water during, cast the mobile cover of remaining steel slag and continue dedusting always；
Lasting spray is to carry out steel slag after 1 hour and stir operation；
After the completion of stirring, continue dynamic shower water 16~24 hours, completes slow cooling.
6. the apparatus of claim 2, which is characterized in that be additionally provided with dust-break item on the slag door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610826783.8A CN106222341B (en) | 2016-09-14 | 2016-09-14 | A kind of stainless steel slag slow cooling processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610826783.8A CN106222341B (en) | 2016-09-14 | 2016-09-14 | A kind of stainless steel slag slow cooling processing unit |
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| Publication Number | Publication Date |
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| CN106222341A CN106222341A (en) | 2016-12-14 |
| CN106222341B true CN106222341B (en) | 2019-04-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222338B (en) * | 2016-09-20 | 2018-03-23 | 中冶京诚工程技术有限公司 | Environment-friendly slag splashing device for hot splashing steel slag |
| CN110982965A (en) * | 2019-12-20 | 2020-04-10 | 广西柳钢环保股份有限公司 | Method for separating slag powder in primary treatment and secondary treatment processes of stainless steel slag |
| CN111154932A (en) * | 2020-01-06 | 2020-05-15 | 中冶东方工程技术有限公司 | Mobile cover vehicle and treatment method for water-containing dust in steel slag hot disintegration process |
| CN112266991A (en) * | 2020-09-25 | 2021-01-26 | 江苏沙钢集团有限公司 | Desulphurization slag in-tank water-pumping circulation treatment method capable of reducing time consumption of process |
| CN113136463B (en) * | 2021-04-28 | 2022-06-14 | 武汉西赛冶金工程有限责任公司 | Comprehensive treatment method for waste steel slag of converter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102230036B (en) * | 2011-04-02 | 2014-05-07 | 中冶建筑研究总院有限公司 | Waste-heat pressure closed-loop thermal treatment method for molten steel slag |
| CN103233085A (en) * | 2013-05-09 | 2013-08-07 | 山西太钢不锈钢股份有限公司 | Method for spraying ash and blowing dust in water cooling process of collected stainless steel slag |
| CN105316444A (en) * | 2015-11-02 | 2016-02-10 | 唐山泽丰机械加工有限公司 | Wet method slag quenching processing system and processing method thereof |
| CN105603137A (en) * | 2016-01-11 | 2016-05-25 | 广东华欣环保科技有限公司 | Dripping and pulverizing control device and dripping and pulverizing treatment method for steelmaking reducing slag |
| CN206052061U (en) * | 2016-09-14 | 2017-03-29 | 中冶华天南京工程技术有限公司 | A kind of stainless steel slag slow cooling processing meanss |
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