CN108531672A - A kind of technique and device of roller dry process stainless steel slag - Google Patents
A kind of technique and device of roller dry process stainless steel slag Download PDFInfo
- Publication number
- CN108531672A CN108531672A CN201810724682.9A CN201810724682A CN108531672A CN 108531672 A CN108531672 A CN 108531672A CN 201810724682 A CN201810724682 A CN 201810724682A CN 108531672 A CN108531672 A CN 108531672A
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- Prior art keywords
- stainless steel
- roller
- slag
- steel slag
- vibrating screen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002893 slag Substances 0.000 title claims abstract description 80
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 45
- 239000010935 stainless steel Substances 0.000 title claims abstract description 45
- 238000001035 drying Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 57
- 239000000843 powder Substances 0.000 claims abstract description 37
- 238000012216 screening Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 11
- 238000005453 pelletization Methods 0.000 claims description 11
- 239000002826 coolant Substances 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 7
- 239000003500 flue dust Substances 0.000 claims description 5
- 238000005336 cracking Methods 0.000 claims description 4
- 238000010410 dusting Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000010327 methods by industry Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a kind of techniques of roller dry process stainless steel slag, include the following steps：S1：It is using roller that high temperature stainless steel slag is cooling for the first time, to grind as temperature be 500 DEG C 700 DEG C, grain size is the tiny materials of 5mm 20mm；S2：The material transmission that step S1 is obtained is to a vibrating screen, the screening through vibrating screen, and the material screening by grain size more than 50mm enters in a container, and material of the remaining grain size less than 50mm is semi-product material；S3：The obtained semi-product materials of step S2 are sent to roller, until the grain size of material reaches 50um 60um；S4：The material obtained in step S3, which is used, selects powder system to sort material, and stores up to finished product bin；The invention also discloses a kind of device of roller dry process stainless steel slag, including drum apparatus, vibrating screen, ash can, slag case, select powder system, finished product bin.The present invention directly cools down high temperature furnace slag using drum apparatus, grinds, and has the advantages such as flow is short, small investment, safe and reliable, low energy consumption.
Description
Technical field
The invention belongs to slag processing field, a kind of technique and device of roller dry process stainless steel slag, especially steel
Metal in the dreg content is few, and easily dusting is in AOD furnace slag, the VOD clinkers of dust-like in cooling procedure.
Background technology
Slag treating device by rolling cylinder process is one of current clinker treater state-of-the-art in the world, the short, efficiency with flow
Various advantages such as high, at low cost, energy conservation and environmental protection, safe and reliable.Especially treated steel-slag performance, can direct profit
It is good with the separation of, slag steel, the environmental issues such as conventional process flow is long, take up a large area, airborne dust is serious are eliminated, in slag processing
The great development potentiality in field, is increasingly paid close attention to by industry.
Stainless steel slag processing at present is conventional to be cooled down by the way of " air-cooled+spray ", and cooling time is long, water consumption
Greatly, investment is big.Therefore a kind of short flow, the technique and device of small investment, the roller dry process stainless steel slag that low energy consumption are designed
It is particularly important.
Invention content
The present invention provides the technique of roller dry process stainless steel slag, is directly carried out to high temperature furnace slag using drum apparatus cold
But it, grinds, there are the advantages such as flow is short, small investment, safe and reliable, low energy consumption；
The present invention provides the device of roller dry process stainless steel slag, mainly by drum apparatus, vibrating screen, ash can, slag
Case selects powder system, finished product bin composition, directly carries out cooling to high temperature furnace slag using drum apparatus, grinds, short with flow,
Small investment, the advantages such as safe and reliable, low energy consumption.
Technical scheme is as follows：
A kind of technique of roller dry process stainless steel slag, includes the following steps：
S1：By temperature it is that 1300 DEG C of -1500 DEG C of high temperature stainless steel slags are cooling for the first time using roller, grinds as temperature and be
500 DEG C -700 DEG C, grain size be the tiny materials of 5mm-20mm；The cooling medium that high temperature stainless steel slag uses inside roller for
Compressed air or inert gas；
S2：The material transmission that step S1 is obtained is to a vibrating screen, the screening through the vibrating screen, and grain size is more than 50mm
Material screening enter a container in, remaining grain size less than 50mm material be semi-product material；
S3：The semi-product material that step S2 is obtained is sent to the roller, using the roller abrasive action and
Stainless steel slag is easy the property of dusting, cracking at high temperature, until the grain size of material reaches 50um-60um；
S4：The material obtained in step S3, which is used, selects powder system to sort material, and stores up to finished product bin.
Preferably, further include a dedusting after the also described step S1, and/or step S2, and/or step S3, and/or step S4
Step is collected the flue dust generated in process engineering using dust pelletizing system.
The present invention also provides a kind of devices of roller dry process stainless steel slag, including drum apparatus, vibrating screen, waste material
Case, slag case select powder system, finished product bin, and cooling medium and grinding technics medium, the roller are provided in the drum apparatus
The exit of device is provided with the vibrating screen, outlet that there are two the vibrating screen settings, a first outlet, a second outlet,
The first outlet is connect with the ash can, and the second outlet is connect with the slag case, the drum apparatus outlet and institute
It states vibrating screen to connect with the import for selecting powder system, the outlet for selecting powder system is connect with the finished product bin.
High temperature stainless steel slag enters the drum apparatus by the import of drum apparatus, and high temperature stainless steel slag is through cooling
The effect of medium and grinding technics medium is sieved after first grinding is cooling through vibrating screen, the big material of grain size via institute after screening
It states first outlet and enters ash can, the small material of grain size enters the slag case, the slag case via the second outlet after screening
Interior material is back to the drum apparatus and is further ground into powder, the powder enter after selecting powder system to sort it is described at
Product feed bin.Material in ash can also return to production and application, realize the utilization of resources.
Preferably, the cooling medium is air or inert gas, and the grinding technics medium is by several steel ball groups
At steel ball group.
Preferably, the outlet of the slag case is connect by a transmitting device with the drum apparatus, the object in the slag case
Material is sent to by the transmitting device in the drum apparatus.
Preferably, described select is provided with a dust pelletizing system between powder system and the finished product bin.
Preferably, the drum apparatus outlet, the vibrating screen are provided with one with the import junction for selecting powder system
Dust pelletizing system.
Compared with prior art, beneficial effects of the present invention are as follows：
The technique of the roller dry process stainless steel slag of the present invention directly carries out high temperature furnace slag using drum apparatus cold
But it, grinds, there are the advantages such as flow is short, small investment, safe and reliable, low energy consumption；
The drum apparatus of the present invention is a locking device, can be collected to flue dust in processing procedure and avoid conventional place
Unordered discharge in science and engineering skill, it is economic and environment-friendly；
After the technique of the roller dry process stainless steel slag of the present invention/device processing high temperature stainless steel is molten, grain size is reachable
50-60um；
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the device of roller dry process stainless steel slag of the present invention；
It is marked in figure：1, slag ladle 2, drum apparatus 3, vibrating screen 4, ash can 5, slag case 6, select powder system 7, dedusting
System 8, finished product bin
Specific implementation mode
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate this hair
It is bright, rather than limit protection scope of the present invention.Those skilled in the art change according to what the present invention made in practical applications
Into and adjustment, still fall within protection scope of the present invention.
In order to better illustrate the present invention, the present invention is described in detail below with attached drawing.
A kind of technique of roller dry process stainless steel slag, includes the following steps：
S1：By temperature it is that 1300 DEG C of -1500 DEG C of high temperature stainless steel slags are cooling for the first time using roller, grinds as temperature and be
500 DEG C -700 DEG C, grain size be the tiny materials of 5mm-20mm；The cooling medium that high temperature stainless steel slag uses inside roller for
Compressed air or inert gas；
S2：The material transmission that step S1 is obtained is to a vibrating screen, the screening through the vibrating screen, and grain size is more than 50mm
Material screening enter a container in, remaining grain size less than 50mm material be semi-product material；
S3：The semi-product material that step S2 is obtained is sent to the roller, using the roller abrasive action and
Stainless steel slag is easy the property of dusting, cracking at high temperature, until the grain size of material reaches 50um-60um；
S4：The material obtained in step S3, which is used, selects powder system to sort material, and stores up to finished product bin.
Further, further include removing after the also described step S1, and/or step S2, and/or step S3, and/or step S4
Dirt step is collected the flue dust generated in process engineering using dust pelletizing system.
A kind of device of roller dry process stainless steel slag, including drum apparatus 2, vibrating screen 3, ash can 4, slag case 5, choosing
Powder system 6, finished product bin 8 are provided with cooling medium and grinding technics medium in the drum apparatus 2, the drum apparatus 2
Exit is provided with the vibrating screen 3, and for the setting of the vibrating screen 3 there are two outlet, a first outlet, a second outlet are described
First outlet is connect with the ash can 4, and powder is selected in the second outlet and the slag case 5, the outlet of the drum apparatus 2 with described
The import connection of system 6, the vibrating screen 3 also connects with the import for selecting powder system 6, the outlet for selecting powder system 6 and
The finished product bin 8 connects.Herein, the outlet of the drum apparatus 2 and the pipeline for selecting the import of powder system 6 to connect, described
For vibrating screen 3 also with the pipeline for selecting the import of powder system 6 to connect, which can be the same pipeline, can also be two
A independent pipeline, is not limited herein, if can realize it is suitable in the powder in 2 exit of drum apparatus, the vibrating screen 3
The powder of grain size can select powder system 6 into described.
High temperature stainless steel slag enters the drum apparatus 2 by the import of drum apparatus 2, and high temperature stainless steel slag is through cold
But the effect of medium and grinding technics medium is sieved after first grinding is cooling through vibrating screen 3, after screening the big material of grain size via
The first outlet enters ash can 4, after screening the small material of grain size via the second outlet enter the slag case 5, it is described
Material in slag case 5 is back to the drum apparatus 2 and is further ground into powder, and the powder is laggard through selecting powder system 6 to sort
Enter the finished product bin 8.Material in ash can 4 can also return to production and application, realize the utilization of resources, and returning to production herein can
With by conveying device, also can be transported by devices such as trolleys.
Further, the cooling medium is air or inert gas, and the grinding technics medium is by several steel balls
The steel ball group of composition.
Further, the outlet of the slag case is connect by a transmitting device with the drum apparatus, in the slag case
Material is sent to by the transmitting device in the drum apparatus.
Further, described select is provided with a dust pelletizing system 7 between powder system and the finished product bin.
Further, the drum apparatus outlet, the vibrating screen are provided with the import junction for selecting powder system
One dust pelletizing system 7.
The present invention is further illustrated with reference to specific embodiment.
Embodiment
Referring to attached drawing 1, a kind of device using roller dry process stainless steel slag is equipped with 1300 DEG C -1500 DEG C of high temperature
The slag ladle 1 of stainless steel slag material, will be high by the driving or other effective tilting mechanisms that are arranged in workshop (workshop)
Warm stainless steel slag material is dumped into drum apparatus 2, and 2 the inside of drum apparatus is provided with cold to the progress of high temperature stainless steel slag
But cooling medium (air or inert gas) and the processing medium (such as steel ball) being ground so that high temperature stainless steel slag
Become temperature after drum apparatus 2 in 500 DEG C -700 DEG C, the tiny materials of grain size 5mm-20mm, is follow-up separation technique
It creates conditions；By drum apparatus 2, treated that stainless steel slag is tentatively sorted by vibrating screen 3, by the grain size in material
Material sorting more than the cold steel of 50mm enters in ash can 4, and the cold steel in ash can 4, which returns, to be produced and used, and realizes resources circulation
It utilizing, grain size is less than 50mm but cannot be sorted into slag case 5 (or slag bucket) by vibrating screen by the material that powder concentrator siphons away,
Then by suitably conveying in medium return roller device 2, using steel ball in drum apparatus 2 can to material regrind and
Stainless steel slag high temperature properties (are easy cracking, are pulverized into the thinner material of grain size) under high temperature, so move in circles, ultimately become grain
Diameter and by selecting powder system 6 to sort the material for meeting Particle size requirements, and is stored in into the finished product of 50um-60um
In product feed bin 8, in order to avoid the flue dust generated in production process causes environmental pollution that dust pelletizing system 7 is arranged, cleaning is realized
Production.
Slag ladle, drum apparatus, vibrating screen, ash can in the present embodiment, select powder system, dust pelletizing system, finished product material at slag case
Storehouse is general device in the prior art, and concrete structure is no longer introduced herein.
A kind of technique using roller dry process stainless steel slag of the invention, clean environment firendly, process intensification, operational security can
It leans on, maintenance is easy.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (7)
1. a kind of technique of roller dry process stainless steel slag, which is characterized in that include the following steps：
S1：By temperature it is that 1300 DEG C of -1500 DEG C of high temperature stainless steel slags are cooling for the first time, to grind as temperature be 500 using roller
DEG C -700 DEG C, grain size be the tiny materials of 5mm-20mm；The cooling medium that high temperature stainless steel slag uses inside roller is pressure
Contracting air or inert gas；
S2：The material transmission that step S1 is obtained is to a vibrating screen, the screening through the vibrating screen, and grain size is more than to the object of 50mm
Material screen choosing enters in a container, and material of the remaining grain size less than 50mm is semi-product material；
S3：The semi-product material that step S2 is obtained is sent to the roller, utilizes the roller abrasive action and stainless
Slag is easy the property of dusting, cracking at high temperature, until the grain size of material reaches 50um-60um；
S4：The material obtained in step S3, which is used, selects powder system to sort material, and stores up to finished product bin.
2. the technique of roller dry process stainless steel slag according to claim 1, which is characterized in that the also described step S1,
And/or after step S2, and/or step S3, and/or step S4 further include a dust removal step, using dust pelletizing system to process engineering
The flue dust of middle generation is collected.
3. a kind of device of roller dry process stainless steel slag, which is characterized in that including drum apparatus, vibrating screen, ash can, slag
Case selects powder system, finished product bin, and cooling medium and grinding technics medium, the drum apparatus are provided in the drum apparatus
Exit be provided with the vibrating screen, there are two outlet, a first outlet, a second outlet are described for the vibrating screen setting
First outlet is connect with the ash can, and the second outlet is connect with the slag case, and the drum apparatus outlet shakes with described
Dynamic sieve is connect with the import for selecting powder system, and the outlet for selecting powder system is connect with the finished product bin.
4. the device of roller dry process stainless steel slag according to claim 3, which is characterized in that the cooling medium is
Air or inert gas, the grinding technics medium are the steel ball group being made of several steel balls.
5. the device of roller dry process stainless steel slag according to claim 3, which is characterized in that the outlet of the slag case
It is connect with the drum apparatus by a transmitting device, the material in the slag case is sent to the rolling by the transmitting device
During wound packages is set.
6. the device of roller dry process stainless steel slag according to claim 3, which is characterized in that it is described select powder system with
A dust pelletizing system is provided between the finished product bin.
7. the device of roller dry process stainless steel slag according to claim 3, which is characterized in that the drum apparatus goes out
Mouth, the vibrating screen and the import junction for selecting powder system are provided with a dust pelletizing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724682.9A CN108531672A (en) | 2018-07-04 | 2018-07-04 | A kind of technique and device of roller dry process stainless steel slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724682.9A CN108531672A (en) | 2018-07-04 | 2018-07-04 | A kind of technique and device of roller dry process stainless steel slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108531672A true CN108531672A (en) | 2018-09-14 |
Family
ID=63487958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810724682.9A Pending CN108531672A (en) | 2018-07-04 | 2018-07-04 | A kind of technique and device of roller dry process stainless steel slag |
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| Country | Link |
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| CN (1) | CN108531672A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722496A (en) * | 2019-03-13 | 2019-05-07 | 东北大学 | A kind of dry-type pulverizing dross sensible heat recovery system and electricity generation system |
| CN115011754A (en) * | 2022-06-07 | 2022-09-06 | 宝武环科武汉金属资源有限责任公司 | Electrode protection slag and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294140A (en) * | 1986-06-11 | 1987-12-21 | Nippon Jiryoku Senko Kk | Treatment of slag produced in iron making plant |
| CN102168155A (en) * | 2011-03-17 | 2011-08-31 | 济南鲍安环保技术开发有限公司 | Production process of steel slag micro-powder |
| CN104894309A (en) * | 2015-06-29 | 2015-09-09 | 上海宝钢节能环保技术有限公司 | Rotating-drum method based full flow processing system and rotating-drum method based full flow processing technique |
| CN105621906A (en) * | 2015-12-30 | 2016-06-01 | 中冶东方工程技术有限公司 | Metallurgical molten slag granulation treatment system and method |
| CN107557505A (en) * | 2016-06-30 | 2018-01-09 | 宝山钢铁股份有限公司 | It is adapted to the drum process handling process and processing unit of full dose slag processing |
-
2018
- 2018-07-04 CN CN201810724682.9A patent/CN108531672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294140A (en) * | 1986-06-11 | 1987-12-21 | Nippon Jiryoku Senko Kk | Treatment of slag produced in iron making plant |
| CN102168155A (en) * | 2011-03-17 | 2011-08-31 | 济南鲍安环保技术开发有限公司 | Production process of steel slag micro-powder |
| CN104894309A (en) * | 2015-06-29 | 2015-09-09 | 上海宝钢节能环保技术有限公司 | Rotating-drum method based full flow processing system and rotating-drum method based full flow processing technique |
| CN105621906A (en) * | 2015-12-30 | 2016-06-01 | 中冶东方工程技术有限公司 | Metallurgical molten slag granulation treatment system and method |
| CN107557505A (en) * | 2016-06-30 | 2018-01-09 | 宝山钢铁股份有限公司 | It is adapted to the drum process handling process and processing unit of full dose slag processing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722496A (en) * | 2019-03-13 | 2019-05-07 | 东北大学 | A kind of dry-type pulverizing dross sensible heat recovery system and electricity generation system |
| CN115011754A (en) * | 2022-06-07 | 2022-09-06 | 宝武环科武汉金属资源有限责任公司 | Electrode protection slag and preparation method thereof |
| CN115011754B (en) * | 2022-06-07 | 2024-03-26 | 宝武环科武汉金属资源有限责任公司 | Electrode protecting slag and preparation method thereof |
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Application publication date: 20180914 |