CN109182625A - A method of hot melt steel slag dry method cooling system and waste heat recycle - Google Patents
A method of hot melt steel slag dry method cooling system and waste heat recycle Download PDFInfo
- Publication number
- CN109182625A CN109182625A CN201810977918.XA CN201810977918A CN109182625A CN 109182625 A CN109182625 A CN 109182625A CN 201810977918 A CN201810977918 A CN 201810977918A CN 109182625 A CN109182625 A CN 109182625A
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- China
- Prior art keywords
- steel slag
- cooling
- hot melt
- waste heat
- cooling system
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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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a kind of methods that hot melt steel slag dry method cooling system and waste heat recycle, and including handling appliance, machinery smashs equipment, screening installation, transloading equipment, air high speed spraying equipment, steel slag cooling device, cleaner and residual heat collection system to pieces；The present invention is directly to smash high-temperature steel slag to pieces, be transported to as container containing it is hinged made of on conveyer belt, into closed cooling duct.Cold air is sprayed in transmission high speed.Then, to the air heated by steel slag, the method for taking staged to utilize with calorific value height.
Description
Technical field
This application involves converter, the processing of electric furnace hot melt steel slag, especially a kind of hot melt steel slag dry method cooling systems and remaining
The method that heat recycles.
Background technique
Steel slag as the trade waste generated in steel manufacture process, be belong to national regulation a kind of industrial solid it is useless
Gurry, discharge amount is big and effect on environment seriously annoyings always enterprise, how to carry out handling and utilizes these wastes
Become steel, building materials enterprise urgent problem instantly.
Therefore, " environmental protection tax law " and " People's Republic of China's solid that country came into effect on January 1st, 2018
The anti-therapy of waste pollution environment " legislation management is carried out to industrial solid castoff, encourage enterprise innovation to utilize, optimization production.
Present hot melt slag processing mode both domestic and external is divided into bored slag method, drum process, wind crush method, water quenching, hot application method, cold
Abandoning method and tray method etc..It is that steel slag is cooled to environment temperature from liquid, molten state or high-temperature solid using water as cooling media
Degree.The prior art can be narrow using face, can not accomplish that stage construction, staged utilize；Also, high-temperature steam dust-laden is easy to produce greatly
Secondary pollution damages greatly downstream waste heat utilization equipment, and the loss of Water Energy is serious, has drawn high processing cost on the whole.
After traditional water cooling of high-temperature steel slag, UTILIZATION OF VESIDUAL HEAT IN is carried out, is not possible to accomplish pure use, it is serious to restrict
Waste heat directly or indirectly uses approach, and by the cooling high-temperature steam collected, in conversion process of energy there is also very big
Loss and environmental pollution cause it to utilize low.
The heat of steel slag can be exchanged into hot wind using air cooling system by the application.Hot wind can be directly using as baking
Dry medium can also be heated into hot water with indirect utilization or be heated to form steam, directly utilization or steam-electric power.This system is closing
The dust of system, generation is recycled with bagroom, can be used for the raw material of steel-making slag powder.
Summary of the invention
In view of current processing hot melt steel slag using water as on the technological layer of the processing mode of cooling media, the application is proposed
A method of hot melt steel slag dry method cooling system and waste heat recycle.
The technical solution for the technical issues of the application solves is: a kind of hot melt steel slag dry method cooling system and waste heat recycling
Method, which is characterized in that including handling appliance, machinery smashs equipment to pieces, screening installation, transloading equipment, and air high speed injection is set
It is standby, steel slag cooling device, cleaner and residual heat collection system, which is characterized in that include the following steps.
A, the steel slag of molten condition is hoisted to steel slag and smashs platform to pieces by handling.
B, it is crushed, smashs method to pieces using machinery and smash the steel slag of molten condition to pieces.
C, it screens, carries out size screening, the little particle screened using the broken steel slag of mechanical oscillation screening installation butt ramming
It is transferred in next step, step is smashed in bulky grain return to pieces again；
D, it transports, the steel slag smashed to pieces is transported to cooling device using transfer tool.
E, cooling carries out the graininess steel slag for stirring, transmitting in cooling device using high speed injection cold air stream cold
But simultaneously, steel slag after cooling is discharged.
F, dedusting, the high temperature air dedusting using cloth-sack-type dust removal equipment to heating.
G, it collects, conveying is collected to the air after being heated by closed channel.
H, it uses, uses high temperature air staged is collected into.
Further, the cooling device include slag charge container containing, it is slag charge turning mechanism, transmission mechanism, closed cold
But channel and closed recuperation of heat channel.
Further, the slag charge container containing is several arrangements, hingedly forms, and forms conveyer belt.
Further, the slag charge turning mechanism is the ratchet device of rotation, and ratchet surface is equipped with pawl, pawl and wheel body
Hingedly, it and can only be swung to bending direction；The ratchet device is mounted on above slag charge container containing, ratchet device surface
Pawl contacted with the slag charge on container containing.
Further, ratchet device direction of rotation when stirring slag charge is consistent with container containing direction of transfer.
Further, the both ends for the conveyer belt that container containing is hinged together are arranged in the driving wheel, are slag charge in cooling
Device transmission provides power.
Further, it when the steel slag particle after screening is poured onto the feeding inlet of cooling device by the transfer tool, contains
Container will pass through the cooling duct of high speed jet airstream with steel slag, and cooling duct is in barotropic state.
Further, the tail portion of cooling duct is arranged in the recuperation of heat channel, and recuperation of heat channel is equipped with cloth-bag type dust suction
Equipment carries out dust suction purified treatment to the high-temperature hot air for the heating that cooling duct is sent, is re-fed into using port.
Further, the front end using port is equipped with powerful air delivery pump, maintains the negative pressure shape in recuperation of heat channel
State.
Further, the use port is equipped with slag charge drying port, sea water desalination port and cogeneration port.
Detailed description of the invention:
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to embodiment or existing skill
Attached drawing needed in art description is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram for a kind of method that of the invention hot melt steel slag dry method cooling system and waste heat recycle.
Fig. 2 is the operation schematic diagram of cooling device of the invention.
In Fig. 2: 1- ratchet device, 2- slag charge container containing, 3- driving wheel.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carry out it is clear,
It is fully described by, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those skilled in the art are obtained under the premise of not making creative labor
Every other embodiment belongs to the range that the present invention is protected.
Firstly, the present invention proposes a kind of method for heating steel slag dry method cooling system and waste heat and recycling, pass through steel slag tune
The driving of fortune equipment and slag ladle, the steel slag that will be discharged in converter are transported to and hold on slag platform.Being smashed to pieces steel slag using machinery is become
Steel slag block equal to or less than 150mm, is delivered to particle screen selecting equipment, and the steel slag particle of 150mm is equal to by filtering out, is returned
It returns and holds slag platform, continue to smash to pieces；Steel slag particle equal to or less than 150mm is passed to steel slag cooling by transporting trolley
On device.
Secondly, the steel slag into the cooling equipment of steel slag is poured into container containing, the ratchet mechanism that stirs being located above is turned over
Slag charge inside dynamic container containing keeps it quick, uniformly cooling, and conveyer belt drives container containing to contain slag charge, passes through high speed cold
But channel is sent to slag notch, does subsequent processing.
Furthermore by the cold air of cooling duct, after being heated by high-temperature steel slag, becomes high-temperature hot air and enter hot-air receipts
Collect channel and is assigned to UTILIZATION OF VESIDUAL HEAT IN ports at different levels according to calorific value gradient.
Claims (10)
1. a kind of method that hot melt steel slag dry method cooling system and waste heat recycle, which is characterized in that mechanical including handling appliance
Smash equipment, screening installation, transloading equipment, air high speed spraying equipment, steel slag cooling device, cleaner and residual heat collection system to pieces
System, which comprises the following steps:
A, the steel slag of molten condition is hoisted to steel slag and smashs platform to pieces by handling；
B, it is crushed, smashs method to pieces using machinery and smash the steel slag of molten condition to pieces；
C, it screens, carries out size screening using the broken steel slag of mechanical oscillation screening installation butt ramming, the little particle screened is transferred to
In next step, step is smashed in bulky grain return to pieces again；
D, it transports, the steel slag smashed to pieces is transported to cooling device using transfer tool；
E, cooling carries out the graininess steel slag for stirring, transmitting in cooling device using high speed injection cold air stream cooling same
When, steel slag after cooling is discharged；
F, dedusting, the high temperature air dedusting using cloth-sack-type dust removal equipment to heating；
G, it collects, conveying is collected to the air after being heated by closed channel；
H, it uses, uses high temperature air staged is collected into.
2. the method that hot melt steel slag dry method cooling system according to claim 1 and waste heat recycle, which is characterized in that institute
The cooling device stated includes slag charge container containing, slag charge turning mechanism, driving wheel, closed cooling duct and closed recuperation of heat
Channel.
3. the method that hot melt steel slag dry method cooling system according to claim 2 and waste heat recycle, which is characterized in that institute
The slag charge container containing stated is several arrangements, hingedly forms, and forms conveyer belt.
4. the method that hot melt steel slag dry method cooling system according to claim 2 and waste heat recycle, which is characterized in that institute
The slag charge turning mechanism stated is the ratchet device of rotation, and ratchet surface is equipped with pawl, and pawl is hinged with wheel body, and can only be to curved
Qu Fangxiang is swung；The ratchet device is mounted on above slag charge container containing, the pawl and container containing on ratchet device surface
On slag charge contact.
5. the method that hot melt steel slag dry method cooling system according to claim 4 and waste heat recycle, which is characterized in that institute
The ratchet device stated direction of rotation when stirring slag charge is consistent with container containing direction of transfer.
6. the method that hot melt steel slag dry method cooling system according to claim 2 and waste heat recycle, which is characterized in that institute
The both ends for the conveyer belt that container containing is hinged together are arranged in the driving wheel stated, transmitted in cooling device for slag charge provide it is dynamic
Power.
7. the method that hot melt steel slag dry method cooling system according to one of claims 1 to 6, and waste heat recycle, feature
It is, when the steel slag particle after screening is poured onto the feeding inlet of cooling device by the transfer tool, container containing will be with
Steel slag passes through the cooling duct of high speed jet airstream, and cooling duct is in barotropic state.
8. the method that hot melt steel slag dry method cooling system according to claim 1 and waste heat recycle, which is characterized in that institute
The tail portion of cooling duct is arranged in the recuperation of heat channel stated, and recuperation of heat channel is equipped with cloth-bag type dust collection equipment, passes to cooling duct
The high-temperature hot air for the heating brought carries out dust suction purified treatment, is re-fed into using port.
9. the method that hot melt steel slag dry method cooling system according to claim 8 and waste heat recycle, which is characterized in that institute
The front end using port stated is equipped with powerful air delivery pump, maintains the negative pressure state in recuperation of heat channel.
10. the method that hot melt steel slag dry method cooling system according to one of claims 1 to 6, and waste heat recycle, special
Sign is that described uses port, is equipped with slag charge drying port, sea water desalination port and cogeneration port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810977918.XA CN109182625A (en) | 2018-08-27 | 2018-08-27 | A method of hot melt steel slag dry method cooling system and waste heat recycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810977918.XA CN109182625A (en) | 2018-08-27 | 2018-08-27 | A method of hot melt steel slag dry method cooling system and waste heat recycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109182625A true CN109182625A (en) | 2019-01-11 |
Family
ID=64915989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810977918.XA Pending CN109182625A (en) | 2018-08-27 | 2018-08-27 | A method of hot melt steel slag dry method cooling system and waste heat recycle |
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| Country | Link |
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| CN (1) | CN109182625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909195A (en) * | 2022-04-16 | 2022-08-16 | 河北鑫达钢铁集团有限公司 | Converter slag heat-taking power generation system and power generation method thereof |
| CN115522001A (en) * | 2022-10-10 | 2022-12-27 | 许工雄 | Dry treatment method for stainless steel slag |
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| US20160084575A1 (en) * | 2013-06-04 | 2016-03-24 | Sichuan Ko Chang Technology Co., Ltd | Method of comprehensively utilizing high-temperature slag balls exiting rotary kiln in kiln process for producing phosphoric acid, and process system thereof |
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| CN205939185U (en) * | 2016-06-08 | 2017-02-08 | 青岛德施普工程技术有限公司 | Cooling of high temperature slag dry -type and cloth wind bed material system that carries |
| CN107916312A (en) * | 2017-11-15 | 2018-04-17 | 重集团大连工程技术有限公司 | Slag dry process and waste heat recovery and electricity-generating method |
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| CN101551199A (en) * | 2009-04-13 | 2009-10-07 | 杭州锅炉集团股份有限公司 | Recovery method of steel slag residual heat and system thereof |
| CN101691620A (en) * | 2009-09-10 | 2010-04-07 | 河北理工大学 | Process and device for processing liquid steel slag |
| CN102191343A (en) * | 2010-03-08 | 2011-09-21 | 中冶建筑研究总院有限公司 | Aircooled crushing device and method of molten steel slag |
| US20160084575A1 (en) * | 2013-06-04 | 2016-03-24 | Sichuan Ko Chang Technology Co., Ltd | Method of comprehensively utilizing high-temperature slag balls exiting rotary kiln in kiln process for producing phosphoric acid, and process system thereof |
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| CN205939185U (en) * | 2016-06-08 | 2017-02-08 | 青岛德施普工程技术有限公司 | Cooling of high temperature slag dry -type and cloth wind bed material system that carries |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909195A (en) * | 2022-04-16 | 2022-08-16 | 河北鑫达钢铁集团有限公司 | Converter slag heat-taking power generation system and power generation method thereof |
| CN114909195B (en) * | 2022-04-16 | 2024-02-13 | 河北鑫达钢铁集团有限公司 | Converter slag heat-extraction power generation system and power generation method thereof |
| CN115522001A (en) * | 2022-10-10 | 2022-12-27 | 许工雄 | Dry treatment method for stainless steel slag |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190111 |