CN102191343B - Aircooled crushing device and method of molten steel slag - Google Patents
Aircooled crushing device and method of molten steel slag Download PDFInfo
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- CN102191343B CN102191343B CN2010101207114A CN201010120711A CN102191343B CN 102191343 B CN102191343 B CN 102191343B CN 2010101207114 A CN2010101207114 A CN 2010101207114A CN 201010120711 A CN201010120711 A CN 201010120711A CN 102191343 B CN102191343 B CN 102191343B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/052—Apparatus features including rotating parts
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/052—Apparatus features including rotating parts
- C21B2400/056—Drums whereby slag is poured on or in between
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
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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
Abstract
The invention discloses an aircooled crushing device of molten steel slag. The device comprises a rolling crushing chamber (1), a rolling crushing device (2), a slag pushing device (3), a traveling trolley (4) and an afterheat recycling device (5), wherein the rolling crushing device (2) and the slag pushing device (3) are positioned on the traveling trolley (4); and the traveling trolley (4) moves in the rolling crushing chamber (1) along rails on the two sides of the rolling crushing chamber (1). An aircooled crushing method comprises the following steps of: pouring the molten steel slag into the rolling crushing chamber (1); blowing normal-temperature air with an air supply device (5-1) to cool the molten steel slag; crushing big steel slag of which the surface is crusted into small steel slag with the rolling crushing device (2), and turning the molten steel slag under the hard crusts to the surfaces at the same time so as to improve the heat exchange efficiency; repeatedly performing air cooling and crushing on the steel slag until the temperature of the steel slag is cooled to certain temperature, wherein the normal-temperature air is heated at the same time and enters the afterheat recycling device (5) for power generation, heat supply and the like; and pushing cooled blocky steel slag to a slag groove through a chute by using the slag pushing device (3), and stabilizing the blocked steel slag.
Description
Technical field
The present invention relates to the air-cooled roll-in processing equipment for pulverizing of a kind of molten steel slag and method, belong to the solid waste process field.
Background technology
At present, molten steel slag handle and crumbling method a lot, mainly contain hot application method, hot vexed method, water quenching, wind quench method, drum process and granulation wheel method etc.
Hot application technology is the many methods of present domestic and international application.Its ultimate principle is to be higher than can quench temperature the time at slag to spray to slag with limited water, makes thermal stress that slag produces greater than the ultimate stress of slag itself, and slag is cracked.
The vexed ratio juris of heat is that the slag of liquid state is directly tumbled to hot disintegrating device, the lid mounted device lid, automatization control water spray produces steam slag is cleared up processing, water spray is met warm sludge and is produced saturation steam, react with free calcium oxide f-CaO, free magnesium f-MgO in the slag, thereby realize the clearing up with cracked of slag self.
Water quenching be the high-temperature liquid state slag flow out, in the decline process by big-flow high-pressure power water cut, smash, add high-temperature slag and meet water quick cooling and shrink and produce stress concentration and break, make slag granulation in water curtain.Because liquid steel slag viscosity is big, contains steel scrap amount height, misoperation during slag water quenching is easily blasted.
The wind method of quenching flow to liquid steel slag in the slag ladle, slowly ploughs under in the tundish with the crane slag ladle of slinging, and slag flows out the back and freely falls from middle pot bottom aperture, and the high velocity air that is subjected to being arranged at the below ejection impacts, and makes slag become particulate state.This is than the technical progress of water quenching technology, and waterworks is simplified, the water system initial cost is economized, and cost is low, the unsafe factor that explodes when overcoming shrend.
Drum process is with crane cylinder slag input device notch to be arrived in the slag ladle handling, and liquid steel slag is poured in the drum apparatus, and liquid steel slag is discharged to the slag field through apron conveyor finish water spray cooling, curing, fragmentation simultaneously in cylinder after.Granulation wheel technology is similar with the cylinder pelletizing technology, liquid steel slag is transported to treatment plant after, adopt crane that slag ladle is slowly sling, pour in the granulation wheel of high speed rotating, make the slag crushing granulation, water spray cools off.Drum process and granulation wheel method all are to adopt the water spray cooling to accompany by cooling and the fragmentation that the Mechanical Crushing mode realizes slag, system device power consumption height, and slag is difficult for the granulation that is crashed to pieces, and is heavier to equipment attrition.
In the above the whole bag of tricks, hot application method floor space is big, long processing period, the big and uncontrollable discharge of quantity of steam; Water quenching, wind quench method, drum process and granulation wheel method all the flowability of liquid towards slag higher requirement is arranged; only be fit to handle flowability liquid steel slag preferably; along with the progress of steel-smelting technology, slag viscosity has increase tendency, and this safety that is unfavorable for the fused solution slag is handled with efficient.
Summary of the invention
The purpose of this invention is to provide the air-cooled roll-in processing equipment for pulverizing of a kind of molten steel slag and method, comprise roll-in crushing chamber, roll-in shredder assembly, push away the slag device, walking dolly and heat recovery device; Roll-in shredder assembly and to push away the slag device mobile in the roll-in crushing chamber along roll-in crushing chamber both sides trolley running track.
Described roll-in crushing chamber comprises collector mat and broken pond, and collector mat is positioned on the broken pond, constitutes an enclosed space with broken pond; Collector mat is used for collecting warm air; Broken pond is used for providing the space that holds molten steel slag.
Described collector mat comprises shroud body, cover door, pyroceram fibre plate and iron plate net; Shroud body is steel construction piece with the cover door, is welded by angle steel, steel plate; The pyroceram fibre plate is fixed on the shroud body inwall by the iron plate net; The cover door is used for accepting to irritate the molten steel slag of pouring broken pond into from slag; The pyroceram fibre plate is used for the opposing slag to the high temperature erosion of shroud body; The iron plate net is used for fixedly pyroceram fibre plate.
Described broken pond comprises concrete layer, steel billet liner, hanging hook assembly, thermal insulation layer, chute and skimming plate, and the steel billet liner is arranged on the concrete layer inwall, and the steel billet liner is connected by hanging hook assembly with the concrete layer inwall; Thermal insulation layer is filled between concrete layer inwall and the steel billet liner; Chute is positioned at broken pond one side bottom; Hanging hook assembly is used for connecting concrete layer and steel billet liner; Thermal insulation layer is exempted from the erosion of high temperature slag for the protection of concrete layer.
Described roll-in shredder assembly comprises breaker roll, breaker roll rotating drive mechanism and breaker roll rotation drive machine; The breaker roll profile is a hollow cylinder, and its outside surface is arranged detent projection according to certain rules; Breaker roll, breaker roll rotating drive mechanism and breaker roll rotation drive machine all are positioned on the walking dolly, and move horizontally with it; Breaker roll is used for broken bulk slag; Breaker roll device of rotation driving and breaker roll rotation transmission device are used for providing the power of breaker roll rotation.
The air-cooled roll-in processing equipment for pulverizing of described molten steel slag comprises also and pushes away the slag device that itself and roll-in shredder assembly all are across on the trolley running track and can move horizontally in orbit.
The described slag device that pushes away comprises scraper bowl, scraper bowl rotating drive mechanism and scraper bowl rotation drive machine; Scraper bowl, scraper bowl rotating drive mechanism and scraper bowl rotation drive machine all are positioned on the walking dolly, and move horizontally with it; Scraper bowl is used for promoting slag and enters chute; Scraper bowl rotating drive mechanism and scraper bowl rotation drive machine are used for rotating scraper bowl.
Described walking dolly comprises car body, lintel and drive car; Car body is used for bearing roller and crushes crushing device and push away the slag device, and drives the two and move horizontally; Lintel is used for connecting car body, can reinforce car body on the one hand, makes the same moved further of car body on the other hand; Drive car is for the power that provides dolly to move horizontally.
Described heat recovery device comprises air supply device, air intake device, regenerator, fly-ash separator and waste heat boiler; Air supply device blasts the roll-in crushing chamber with normal temperature air; Become warm air after normal temperature air and the molten steel slag heat exchange, warm air enters waste heat boiler and generates electricity or heat behind air intake device, regenerator and fly-ash separator; Air supply device is used for blasting normal temperature air to the roll-in crushing chamber; Air intake device is used for warm air sucking-off in the roll-in crushing chamber; Regenerator is used for the store heat air; Fly-ash separator is used for purifying warm air; Waste heat boiler is used for warm air generating or heating.
The air-cooled roll-in processing equipment for pulverizing of described molten steel slag also is included as the roll-in crushing chamber and irritates for the slag of slag, and slag is irritated and is used for the interim fused solution slag that stores.
The air-cooled roll-in break process of described molten steel slag method is: fused solution slag (more than 1400 ℃) is irritated by slag pour the roll-in crushing chamber into; Air supply device blasts normal temperature air molten steel slag is cooled off; The slag crushing that has been crusted in the surface by the roll-in shredder assembly is to the block slag below the 200mm, realizes simultaneously the molten steel slag below the duricrust is turned over to the surface to improve heat exchanger effectiveness; Air-cooled and fragmentation is carried out being cooled to below 400-800 ℃ until the slag temperature repeatedly; Normal temperature compressed air is heated to more than 400 ℃ simultaneously, enters heat recovery device device and is used for generating or heating etc.; By push away the slag device will cool off the back block slag be pushed into slag chute through chute, carry out stabilization treatment.
In sum, the air-cooled roll-in break process of molten steel slag method has following characteristics:
A) be applicable to the slag of any flow velocity;
B) air-cooled crushing efficiency height;
C) carry out at enclosed space fully, avoided the pollution to surrounding environment;
D) the slag waste heat be can collect and generating or heating are used for;
E) level of automation height is applicable to that industrialization produces continuously.
Description of drawings
Fig. 1 is front view of the present invention.
Fig. 2 is the vertical view among Fig. 1.
Fig. 3 is the left view among Fig. 1.
The main nomenclature of accompanying drawing
1 roll-in crushing chamber
The broken pond of 1-1 collector mat 1-2
1-1a shroud body 1-1b cover door 1-1c pyroceram fibre plate 1-1d iron plate net
1-2a concrete layer 1-2b steel billet liner 1-2c hanging hook assembly 1-2d thermal insulation layer 1-2e chute 1-2f skimming plate
2 roll-in shredder assemblys
2-1 breaker roll 2-2 breaker roll device of rotation driving 2-3 breaker roll rotation transmission device
3 push away the slag device
3-1 scraper bowl 3-2 scraper bowl device of rotation driving 3-3 scraper bowl rotation transmission device
4 walking dollies
4-1 car body 4-2 lintel 4-3 drive car
5 heat recovery devices
5-1 air supply device 5-2 air intake device 5-3 regenerator 5-4 fly-ash separator 5-5 waste heat boiler
6 slag ladles
Embodiment
Be the structural representation of the air-cooled roll-in processing equipment for pulverizing of a kind of molten steel slag of the present invention as Fig. 1,2,3, comprise roll-in crushing chamber 1, roll-in shredder assembly 2, push away slag device 3, walking dolly 4 and heat recovery device 5; Roll-in shredder assembly 2 and push away slag device 3 and be positioned on the walking dolly 4, walking dolly 4 is along the movement roll-in crushing chamber 1 in of 1 liang of siding track of roll-in crushing chamber.
Described roll-in crushing chamber 1 comprises collector mat 1-1 and broken pond 1-2, and collector mat 1-1 is positioned on the broken pond 1-2, constitutes an enclosed space with broken pond 1-2; Collector mat 1-1 is used for collecting warm air; Broken pond 1-2 is used for providing the space that holds molten steel slag.
Described collector mat 1-1 comprises shroud body 1-1a, cover door 1-1b, pyroceram fibre plate 1-1c and iron plate net 1-1d; Shroud body 1-1a and cover door 1-1b are steel construction piece, are welded by angle steel, steel plate; Pyroceram fibre plate 1-1c is fixed on the shroud body 1-1a inwall by iron plate net 1-1d; Cover door 1-1b is used for accepting to pour into from slag filling 6 molten steel slag of broken pond 1-2; Pyroceram fibre plate 1-1c is used for the opposing slag to the high temperature erosion of shroud body 1-1a; Iron plate net 1-1d is used for fixedly pyroceram fibre plate 1-1c.
Described broken pond 1-2 comprises concrete layer 1-2a, steel billet liner 1-2b, hanging hook assembly 1-2c, thermal insulation layer 1-2d, chute 1-2e and skimming plate 1-2f, steel billet liner 1-2b is arranged on the concrete layer 1-2a inwall, and steel billet liner 1-2a is connected by hanging hook assembly 1-2c with concrete layer 1-2b inwall; Thermal insulation layer 1-2d is filled between concrete layer 1-2a inwall and the steel billet liner 1-2b; Chute 1-2e is positioned at broken pond 1-2 one side bottom; Hanging hook assembly 1-2c is used for connecting concrete layer 1-2a and steel billet liner 1-2b; Thermal insulation layer 1-2d exempts from the erosion of high temperature slag for the protection of concrete layer 1-2a.
Described roll-in shredder assembly 2 comprises breaker roll 2-1, breaker roll rotating drive mechanism 2-2 and breaker roll rotation drive machine 2-3; Breaker roll 2-1 profile is a hollow cylinder, and its outside surface is arranged detent projection according to certain rules, and its inner logical water coolant is with the cooling surface temperature; Breaker roll 2-1, breaker roll rotating drive mechanism 2-2 and breaker roll rotation drive machine 2-3 all are positioned on the walking dolly 4, and move horizontally with it; Breaker roll 2-1 is used for broken bulk slag; Breaker roll device of rotation driving 2-2 and breaker roll rotation transmission device 2-3 are used for providing the breaker roll 2-1 power of rotation.
The described slag device 3 that pushes away comprises scraper bowl 3-1, scraper bowl rotating drive mechanism 3-2 and scraper bowl rotation drive machine 3-3; Scraper bowl 3-1, scraper bowl rotating drive mechanism 3-2 and scraper bowl rotation drive machine 3-3 all are positioned on the walking dolly 4, and move horizontally with it; Scraper bowl 3-1 is used for promoting block slag to chute 1-2e; Scraper bowl device of rotation driving 3-2 and scraper bowl rotation transmission device 3-3 are used for providing the scraper bowl 3-1 power of rotation.
Described walking dolly 4 comprises car body 4-1, lintel 4-2 and drive car 4-3; Car body 4-1 is used for bearing roller and crushes crushing device 2 and push away slag device 3, and drives the two and move horizontally; Lintel 4-2 is used for connecting car body 4-1, can reinforce car body 4-1 on the one hand, makes the same moved further of car body 4-1 on the other hand; Drive car 4-3 is for the power that provides dolly to move horizontally.
The air-cooled roll-in processing equipment for pulverizing of described molten steel slag also comprises heat recovery device 5, and it is positioned at roll-in crushing chamber 1 outside, and links to each other with roll-in crushing chamber 1 by pipeline.Described heat recovery device 5 comprises air supply device 5-1, air intake device 5-2, regenerator 5-3, fly-ash separator 5-4 and waste heat boiler 5-5; Air supply device 5-1 blasts roll-in crushing chamber 1 with normal temperature air; Become warm air after normal temperature air and the molten steel slag heat exchange, warm air enters waste heat boiler 5-5 and generates electricity or heat behind air intake device 5-2, regenerator 5-3 and fly-ash separator 5-4; Air supply device 5-1 is used for blasting normal temperature air to roll-in crushing chamber 1; Air intake device 5-2 is used for warm air sucking-off in the roll-in crushing chamber 1; Regenerator 5-3 is used for the store heat air; Fly-ash separator 5-4 is used for purifying warm air; Waste heat boiler 5-5 is used for warm air generating or heating.
The air-cooled roll-in processing equipment for pulverizing of described molten steel slag also is included as the roll-in crushing chamber and irritates 6 for the slag of slag, and described slag is irritated 6 and is used for the interim fused solution slag that stores.
The air-cooled roll-in break process of molten steel slag method comprises the steps:
1) fused solution slag (more than 1400 ℃) is irritated 6 by slag and pour roll-in crushing chamber 1 into;
2) blast normal temperature air (20-30 ℃) by air supply device 5-1, carry out air-cooled to molten steel slag;
3) liquid steel slag surface crust in the air-cooled process carries out fragmentation by 2 pairs of surperficial duricrusts of roll-in shredder assembly, and the interior liquid molten steel slag is turned over again to the surface, improves heat exchange efficiency;
4) air-cooled and fragmentation are carried out being cooled to below 400-800 ℃ until the slag temperature repeatedly, and the slag of this moment becomes block solid steel slag below the 200mm by molten state; Simultaneously, cooled steel slag is delivered to the chute 1-2e of roll-in crushing chamber 1 one sides by pushing away slag device 3, and slag falls into slag chute through chute 1-2e, carries out the slag stabilization treatment;
5) become warm air after normal temperature air and the molten steel slag heat exchange, enter heat recovery device 5 and generate electricity or heat.
Claims (13)
1. air-cooled roll-in processing equipment for pulverizing of molten steel slag is characterized in that: comprise roll-in crushing chamber (1), roll-in shredder assembly (2), push away slag device (3), walking dolly (4) and heat recovery device (5); Roll-in shredder assembly (2), pushing away slag device (3) is positioned on the walking dolly (4), walking dolly (4) is mobile in roll-in crushing chamber (1) along roll-in crushing chamber (1) two siding track, wherein, described roll-in shredder assembly (2) comprises breaker roll (2-1), breaker roll device of rotation driving (2-2) and breaker roll rotation transmission device (2-3), described breaker roll (2-1) is the column cavity structure, outer wall is arranged detent projection according to certain rules, its inner logical water coolant is with the cooling surface temperature, the described slag device (3) that pushes away comprises scraper bowl (3-1), scraper bowl device of rotation driving (3-2) and scraper bowl rotation transmission device (3-3), described heat recovery device (5) comprises air supply device (5-1), air intake device (5-2), regenerator (5-3), fly-ash separator (5-4) and waste heat boiler (5-5), normal temperature air is in air supply device (5-1) blasts roll-in crushing chamber (1), become warm air after normal temperature air and the molten steel slag heat exchange, warm air is through air intake device (5-2), regenerator (5-3) and fly-ash separator (5-4) enter waste heat boiler (5-5) and generate electricity or heat.
2. the air-cooled roll-in processing equipment for pulverizing of molten steel slag according to claim 1, it is characterized in that: described roll-in crushing chamber (1) comprises collector mat (1-1) and broken pond (1-2), collector mat (1-1) is positioned at top, broken pond (1-2), constitutes an enclosed space with broken pond (1-2).
3. the air-cooled roll-in processing equipment for pulverizing of molten steel slag according to claim 1, it is characterized in that: described walking dolly (4) comprises car body (4-1), lintel (4-2) and drive car (4-3).
4. the air-cooled roll-in processing equipment for pulverizing of molten steel slag according to claim 1 is characterized in that: described roll-in shredder assembly (2) and push away slag device (3) and all be positioned on the walking dolly (4) and with it and move horizontally.
5. the air-cooled roll-in processing equipment for pulverizing of molten steel slag according to claim 2 is characterized in that: described collector mat (1-1) comprises shroud body (1-1a), cover door (1-1b), pyroceram fibre plate (1-1c) and iron plate net (1-1d); Shroud body (1-1a) is steel construction piece with cover door (1-1b), is welded by rectangular pipe steel, angle steel and steel plate; Pyroceram fibre plate (1-1c) is fixed on shroud body (1-1a) inwall by iron plate net (1-1d).
6. the air-cooled roll-in processing equipment for pulverizing of molten steel slag according to claim 2, it is characterized in that: described broken pond (1-2) comprises concrete layer (1-2a), steel billet liner (1-2b), hanging hook assembly (1-2c), thermal insulation layer (1-2d), chute (1-2e) and skimming plate (1-2f); Steel billet liner (1-2b) is arranged on concrete layer (1-2a) inwall, and steel billet liner (1-2b) is connected by hanging hook assembly (1-2c) with concrete layer (1-2a) inwall; Thermal insulation layer (1-2d) is filled between concrete layer (1-2a) inwall and the steel billet liner (1-2b); Chute (1-2e) is positioned at broken pond (1-2) side bottom.
7. the air-cooled roll-in break process of the molten steel slag method of the air-cooled roll-in processing equipment for pulverizing of molten steel slag according to claim 1 comprises the steps:
1) molten steel slag is poured in the roll-in crushing chamber (1) by slag ladle (6);
2) blast roll-in crushing chamber (1) normal temperature air by air supply device (5-1), carry out air-cooled to molten steel slag;
3) slag surface crust in the air-cooled process carries out fragmentation by roll-in shredder assembly (2) to surperficial duricrust, and inner molten steel slag is turned over again to the surface, improves heat exchange efficiency;
4) air-cooled and fragmentation is carried out being cooled to certain temperature until the slag temperature repeatedly, and slag becomes block solid steel slag by molten state;
Wherein, described roll-in shredder assembly (2) comprises breaker roll (2-1), breaker roll device of rotation driving (2-2) and breaker roll rotation transmission device (2-3), described breaker roll (2-1) is the column cavity structure, outer wall is arranged detent projection according to certain rules, and its inner logical water coolant is with the cooling surface temperature.
8. the air-cooled roll-in break process of molten steel slag according to claim 7 method, it is characterized in that: this method can be handled the slag of any flow velocity, comprises fused solution, solid-state or solid-liquid mixture.
9. the air-cooled roll-in break process of molten steel slag according to claim 7 method is characterized in that: slag is disposable pour roll-in crushing chamber (1) into after, air-cooled and broken two processes are carried out simultaneously.
10. the air-cooled roll-in break process of molten steel slag according to claim 7 method is characterized in that: the molten steel slag temperature of being poured in the roll-in crushing chamber (1) by slag ladle (6) is more than 1400 ℃.
11. the air-cooled roll-in break process of molten steel slag according to claim 7 method, it is characterized in that: cooled steel slag is delivered to the chute (1-2e) of roll-in crushing chamber (1) one side by pushing away slag device (3), slag falls into slag chute through chute (1-2e), carries out the slag stabilization treatment.
12. the air-cooled roll-in break process of molten steel slag according to claim 7 method is characterized in that: the normal temperature air that enters in the roll-in crushing chamber (1) is 20-30 ℃; The temperature rising is more than 400 ℃ after normal temperature air and the slag heat exchange.
13. the air-cooled roll-in break process of molten steel slag according to claim 7 method is characterized in that: molten steel slag is 400-800 ℃ through temperature after the air-cooled roll-in fragmentation; Granularity is below the 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101207114A CN102191343B (en) | 2010-03-08 | 2010-03-08 | Aircooled crushing device and method of molten steel slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101207114A CN102191343B (en) | 2010-03-08 | 2010-03-08 | Aircooled crushing device and method of molten steel slag |
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| CN102191343A CN102191343A (en) | 2011-09-21 |
| CN102191343B true CN102191343B (en) | 2013-08-14 |
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| CN114262761B (en) * | 2021-12-16 | 2022-11-01 | 北京崎基环保科技有限公司 | Short-flow integrated treatment system and treatment method for steel slag |
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| CN101417866A (en) * | 2007-10-25 | 2009-04-29 | 中国京冶工程技术有限公司 | Solid thermal self antipyretic steel slag treatment method in pressure |
| CN101413037A (en) * | 2008-11-28 | 2009-04-22 | 首钢总公司 | Method for recovery of waste heat of steel slag and comprehensively processing and utilizing steel slag |
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