CN108559812A - A kind of steel slag waste heat recycle device - Google Patents
A kind of steel slag waste heat recycle device Download PDFInfo
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- CN108559812A CN108559812A CN201810380656.9A CN201810380656A CN108559812A CN 108559812 A CN108559812 A CN 108559812A CN 201810380656 A CN201810380656 A CN 201810380656A CN 108559812 A CN108559812 A CN 108559812A
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- Prior art keywords
- cavity
- roller
- slag
- waste heat
- discharge tube
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Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/04—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
-
- 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
-
- 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
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Details (AREA)
Abstract
A kind of steel slag waste heat recycle device, effective solution do not have the problem of residual neat recovering system using drum process processing slag；It includes roller, drum front end is rotatably connected to slag input cylinder, roller rear end thereof is connected with dregs discharge tube, slag input cylinder and dregs discharge tube is fixed and roller rotates, it is equipped with cavity in cylinder wall, the second cavity being connected to cavity is equipped in slag input barrel, the third cavity being connected to cavity is equipped in deslagging barrel, second cavity connects steam pipe network through the first heat pipe, and third cavity connects water supply pipe through the second heat pipe；Waste heat recovery device proposed by the invention, setting cavity realizes that the heating of medium is recovered in steam pipe network in turn to absorb slag amount of residual heat, to realize the waste heat recovery to roller process slag；The addition of unidirectional flow passage control device, can make heat transmission medium preferably complete to circulate, to which heat exchange be rapidly completed；The setting of sealing structure can avoid a large amount of of heat from scattering and disappearing, improve organic efficiency.
Description
Technical field
The present invention relates to STEELMAKING PRODUCTION heat recovery technology fields, recycle and fill more particularly to a kind of steel slag waste heat
It sets.
Background technology
Slag is the inevitable outcome of pneumatic steelmaking, accounts for about the 10%~15% of crude steel yield.The essential mineral group of slag becomes
Dicalcium silicate, dicalcium silicate, monticellite, calcium and magnesium rhodonite, dicalcium ferrite, free calcium oxide, free magnesium, and press from both sides
Wrap up in the residual steel in part and iron oxide etc..Wherein, the mass fraction of ferro element is about 10%~20%, can after recovered wherein ferro element
As raw materials such as slag micro powder, steel slag building block brick, roadbed steady layer of water, there is very high recycling to be worth.
Since CaO content is higher in liquid steel slag caused by pneumatic steelmaking, never image height clinker equally obtains very
Good utilization.To adapt to raising of the society to environmental requirement, the clinker that pneumatic steelmaking generates is become refining from a kind of industrial waste
One byproduct of steel production, studies and develops a variety for the treatment of fluids such as hot application method, wind quenching method, water quenching, tray method both at home and abroad
The technology of state slag.But the various liquid steel slag treatment technologies to put into production at present are in environmental protection, processing cost, treatment scale and peace
There is some shortcomings for full property etc..
Drum process slag treatment technology used for more than ten years, and at home and abroad multiple steel mills have been applied popularization, drum process
Residues processing technique is by high temperature（900~1400℃）Melt slag in roller chilling, solidification, broken short route, clean,
The residues processing technique of recycling.By the application and improvement in the development and many places engineering practice of recent years, technology has
Prodigious progress, equipment more they tend to it is perfect, stablize, preferably embodied its advanced feature：
1）Process flow is short, and the slag treatment time is short, and prouctiveness is high；
2）Vessel slag uniform granularity that treated, stay in grade, finished product slag after processing can be applied directly；
3）The separation of slag steel is good；
4）Slag treatment carries out in container, and the steam of generation is concentrated by chimney to be discharged, and working environment is improved, at dedusting
Reason, effectively improves pollution of the Slag treatment to environment, environment protecting obtains improvement more thoroughly；
5）The slag handled well, which can not land, to be directly entered high hopper and leaves concentratedly, and that reduces slag has bad luck number, shortens the fortune of slag
The defeated time improves working efficiency.
The use of the technology can greatly improve the operating environment of iron and steel enterprise's slag processing process, be slag subsequent processing
Process creates favorable conditions.
But no heat recovery is the significant drawback of drum process, is wasted so as to cause a large amount of heat.
Invention content
For the above situation, to overcome the defect of the prior art, the purpose of the present invention to be just to provide a kind of steel slag waste heat time
It receives and utilizes device, effective solution does not have the problem of residual neat recovering system using drum process processing slag.
Its technical solution solved the problems, such as is, the present invention includes roller, and drum front end is rotatably connected to slag input cylinder, after roller
End is rotatably connected to dregs discharge tube, and slag input cylinder and dregs discharge tube are fixed and roller rotates, and cavity, slag input barrel are equipped in cylinder wall
It is interior equipped with the second cavity being connected to cavity, the third cavity being connected to cavity is equipped in deslagging barrel, the second cavity is through first
Heat pipe connects steam pipe network, and third cavity connects water supply pipe through the second heat pipe.
Waste heat recovery device proposed by the invention, setting cavity realize medium to absorb slag amount of residual heat
It heats and then is recovered in steam pipe network, to realize the waste heat recovery to roller process slag；Unidirectional flow passage control device
Addition, heat transmission medium can be made preferably to complete to circulate, to which heat exchange be rapidly completed；The setting of sealing structure, can
It avoids a large amount of of heat from scattering and disappearing, improves organic efficiency.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the attachment structure schematic diagram of roller in the present invention, slag input cylinder and dregs discharge tube.
Fig. 3 is the sectional view of roller in the present invention.
Fig. 4 is the sectional view of slag input cylinder in the present invention.
Fig. 5 is the sectional view of dregs discharge tube in the present invention.
Fig. 6 is the portions A enlarged drawing in Fig. 2 of the present invention.
Fig. 7 is the enlarged drawing of one-way flow control device in the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in further detail below in conjunction with attached drawing 1-7.
By Fig. 1 to Fig. 7 it is found that a kind of steel slag waste heat recycle device, including roller 1,1 front end of roller are rotatably connected to
Slag input cylinder 2,1 rear end thereof of roller are connected with dregs discharge tube 3, and slag input cylinder 2 and dregs discharge tube 3 are fixed and roller 1 rotates, roller 1
It is equipped with cavity in wall, is equipped with the second cavity 4 be connected to cavity in 2 wall of slag input cylinder, equipped with being connected to cavity in 3 wall of dregs discharge tube
Third cavity 5, the second cavity 4 connect steam pipe network 11 through the first heat pipe 8, and third cavity 5 connects water supply pipe through the second heat pipe 9
10。
The cavity includes the first cavity 12 being arranged in 1 cylindrical wall of roller, and is respectively equipped on 1 two side of roller
Four cavitys 13 and the 5th cavity 14, the 4th cavity 13 are connected to the second cavity 4, and the 5th cavity 14 is connected to third cavity 5, and the 4th
4 coupling part of cavity 13 and the second cavity, the 5th cavity 14 and 5 coupling part of third cavity are equipped with through-hole.
Between first cavity 12 and the 4th cavity 13, multiple lists are equipped between the first cavity 12 and the 5th cavity 14
To flow control apparatus, medium can enter the 4th cavity 13 in the first cavity 12, and medium can enter the first sky in the 5th cavity 14
Chamber 12.
The one-way flow control device includes plugging block 15, and 15 both sides of plugging block offer 16 He of first flow respectively
Second flow channel 17, offers stepped hole between first flow 16 and second flow channel 17, stepped hole is the small structure of outer imperial palace, roller
Screw rod 18 is fixed with a piston 19 after the adjustment on 1 side wall, and being connected with one through spring 20 on piston 19 extend into blocking up in stepped hole
First 21, when pressure is more than pressure in second flow channel 17 in first flow 16, pressure difference pushes plug 21 to locking direction, therefore
Stepped hole cannot be opened, and when pressure is more than pressure in first flow 16 in second flow channel 17, pressure difference pushes plug 21 to press
Contracting spring 20 so that stepped hole is opened, so that first flow 16 be connected to second flow channel 17, i.e., one-way flow direction is the
Two runners 17 flow to 16 direction of first flow.
The roller 1 and slag input cylinder 2, dregs discharge tube 3 seal when mutually rotating, between roller 1 and slag input cylinder 2, roller 1 with
The first sealing structure 22 and second seals structure 23 are equipped between dregs discharge tube 3.
First sealing structure 22 includes the first circle hub 24 being detachably secured on roller 1, slag input cylinder 2 or deslagging
The first connection ring 25 being connected with the first circle hub 24, the first connection ring 25 and slag input cylinder 2 or dregs discharge tube 3 are fixed on cylinder 3
Interference fit, the first circle hub 24 include the first extension arm 26 and the first block 27, and the first connection ring 25 includes 28 He of the first groove
Sliding slot 29, the first extension arm 26 stretch into the first groove 28, and there are gap, gaps between the first extension arm 26 and the first groove 28
It is inside fixed with oil sealing, oil sealing and the first extension arm 26 are interference fitted, and the first block 27 is inserted into sliding slot 29.
Multiple ring type seals are equipped between first extension arm 26 and the first groove 28.
The second seals structure 23 includes the second connection ring 30 being fixed on roller 1, slag input cylinder 2 or dregs discharge tube 3
On be extended with the second circle hub 31 being connected with the second connection ring 30, offer the second groove 32 in the second connection ring 30, the
It is extended with the second extension arm 33 being inserted into the second groove 32 on two circle hubs 31, between the second extension arm 33 and the second groove 32
Oil sealing is set, and oil sealing and the second extension arm 33 are interference fitted.
Multiple ring type seals are equipped between second extension arm 33 and the second groove 32.
2 first sliding machine of front end 34 of slag input cylinder is connected with slag input lid 35, the sliding of 3 rear end second of dregs discharge tube
Trolley 36 is connected with deslagging lid 37, and slag input lid 35 is equipped with water inlet pipe 38, and deslagging lid 37 is equipped with air bleeding valve 39.
In the use of the present invention,
It is first turned on the valve of water supply pipe 10, through the water filling into 1 wall of roller of the second cavity 15, then starts the first sliding machine
34, slag input cylinder 2 is opened, hot steel slag is imported into slag input cylinder 2, the first sliding machine 34 is then controlled and closes slag input cylinder 2,
By the water filling into roller 1 of water inlet pipe 38, slag discharges a large amount of heat during cooling, at this time the water in 1 wall of roller
The heat for absorbing slag release, evaporates the water to form water vapour, through the first cavity 12, the when water vapor pressure reaches given threshold
Four cavitys 13, the second cavity 4 and the first heat pipe 8 enter in steam pipe network 11, due to the discharge of water vapour, the water in 1 wall of roller
It reduces, water supply pipe 10 persistently carries out water-refilling operation, the water in 1 wall of roller is made to remain stable amount, being capable of constant absorption steel
The heat of slag release, will not cause larger heat loss.
In order to reduce scattering and disappearing for heat, slag input lid 35 and deslagging lid 37 are added outside slag input cylinder 2 and dregs discharge tube 3 so that rolling
1 inner sealing of cylinder, heat is not lost, by the water filling into roller 1 of water inlet pipe 38 on slag input lid 35, when pressure is excessive in roller 1
When, the air bleeding valve 39 on deslagging lid 37 is opened, and to reduce pressure in roller 1, avoids having an accident.
To make heat transmission medium preferably transmit heat, in the first cavity 12 and the 4th cavity 13, the first cavity 12 and
One-way flow control device is set between five cavitys 14, water vapour can only be entered from the first cavity 12 in the 4th cavity 13, and
The 5th cavity 14 will not be reversely flowed into, so that the flow direction in hot flow path is unified, so the recycling of heat keeps steady with release
Fixed quickly cycle.
In steel slag waste heat removal process, roller 1 is in rotary state always, and water vapour or liquid water may be from rollings
It is flowed out in cylinder 1 and the gap between slag input cylinder 2 or dregs discharge tube 3, so between roller 1 and slag input cylinder 2, roller 1 and slag-drip opening
Sealing structure is set, to avoid lost and heat transmission medium the volatilization of the heat in rotation process.
In the first sealing structure 22, the first block 27 is inserted into sliding slot 29, and slag input cylinder 2 or dregs discharge tube 3 are stuck in rolling
In cylinder 1, prevent it from being moved to the direction far from roller 1 in rotation process, the first extension arm 26 is inserted into the first groove 28,
Oil sealing between first extension arm 26 and the first groove 28 plays sealing function, and oil sealing can be arranged it is multiple, multiple oil sealings
Lip is in contact.
In second seals structure 23, the second extension arm 33 is inserted into the second groove 32, auxiliary positioning slag input cylinder 2 or row
Slag cylinder 3, oil sealing are arranged between the second extension arm 33 and the second groove 32, can be arranged multiple.
First sealing structure 22 can prevent external substance to be connected to cavity, and second seals structure 23 can prevent roller 1
Interior substance is connected to cavity, and two sealing structures are used cooperatively, and can ensure the closure in cavity, improve the effect of heat exchange
Rate.
The multiple ring type seals being arranged, it is possible to reduce external sundries, dust or internal slag enter, and ensure rotating part
Environment, extend its service life.
Wherein, the spring 20 in one-way flow control device uses molybdenum steel, piston 19 and plug 21 to use high temperature resistant material
Material makes, and isolation is sealed between 1 wall of piston 19 and roller, avoids heat from leaking outside, plug 21 seals when being contacted with stepped hole, avoids
It flows back.
Can adjust unidirectional flow passage control device by adjusting screw rod 18, rotation adjusting screw rod 18 can with regulating piston 19 with
The distance between stepped hole, and then can adjust first flow 16 and 17 internal pressure of second flow channel with the decrement of adjustment spring 20
The critical value of force difference, the numerical value can be adjusted according to actual conditions.
Waste heat recovery device proposed by the invention, setting cavity realize medium to absorb slag amount of residual heat
It heats and then is recovered in steam pipe network, to realize the waste heat recovery to roller process slag；Unidirectional flow passage control device
Addition, heat transmission medium can be made preferably to complete to circulate, to which heat exchange be rapidly completed；The setting of sealing structure, can
It avoids a large amount of of heat from scattering and disappearing, improves organic efficiency.
Claims (10)
1. a kind of steel slag waste heat recycle device, including roller（1）, which is characterized in that roller（1）Front end be rotatably connected into
Slag cylinder（2）, roller（1）Rear end thereof is connected with dregs discharge tube（3）, slag input cylinder（2）And dregs discharge tube（3）Fixed and roller（1）
Rotation, roller（1）Cavity, slag input cylinder are equipped in wall（2）The second cavity being connected to cavity is equipped in wall（4）, dregs discharge tube（3）Wall
It is interior equipped with the third cavity being connected to cavity（5）, the second cavity（4）Through the first heat pipe（8）Connect steam pipe network（11）, third
Cavity（5）Through the second heat pipe（9）Connect water supply pipe（10）.
2. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that the cavity includes setting
It sets in roller（1）The first cavity in cylindrical wall（12）, roller（1）The 4th cavity is respectively equipped on two side（13）With the 5th sky
Chamber（14）, the 4th cavity（13）With the second cavity（4）Connection, the 5th cavity（14）With third cavity（5）Connection.
3. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that first cavity
（12）With the 4th cavity（13）Between, the first cavity（12）With the 5th cavity（14）Between be equipped with multiple one-way flows control dress
It sets, the first cavity（12）Interior medium can enter the 4th cavity（13）, the 5th cavity（14）Interior medium can enter the first cavity（12）.
4. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that the one-way flow control
Device processed includes plugging block（15）, plugging block（15）Both sides offer first flow respectively（16）And second flow channel（17）, first
Runner（16）And second flow channel（17）Between offer stepped hole, stepped hole is the small structure of outer imperial palace, roller（1）It is passed through on side wall
Adjusting screw rod（18）It is fixed with a piston（19）, piston（19）On through spring（20）It is connected with a plug extending into stepped hole
（21）.
5. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that the roller（1）With
Slag input cylinder（2）, dregs discharge tube（3）It is sealed when mutually rotating, roller（1）With slag input cylinder（2）Between, roller（1）With dregs discharge tube（3）It
Between be equipped with the first sealing structure（22）And second seals structure（23）.
6. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that the first sealing knot
Structure（22）Including being detachably secured to roller（1）On first circle hub（24）, slag input cylinder（2）Or dregs discharge tube（3）On be fixed with
First circle hub（24）The first connection ring being connected（25）, the first connection ring（25）With slag input cylinder（2）Or dregs discharge tube（3）Interference
Cooperation, the first circle hub（24）Including the first extension arm（26）With the first block（27）, the first connection ring（25）Including the first groove
（28）And sliding slot（29）, the first extension arm（26）Stretch into the first groove（28）It is interior, the first extension arm（26）With the first groove（28）
Between there are gap, be fixed with oil sealing, oil sealing and the first extension arm in gap（26）Interference fit, the first block（27）It is inserted into
Sliding slot（29）It is interior.
7. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that first extension arm
（26）With the first groove（28）Between be equipped with multiple ring type seals.
8. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that the second sealing knot
Structure（23）Including being fixed on roller（1）On the second connection ring（30）, slag input cylinder（2）Or dregs discharge tube（3）On be extended with second
Connection ring（30）The second circle hub being connected（31）, the second connection ring（30）On offer the second groove（32）, the second circle hub
（31）On be extended with and be inserted into the second groove（32）The second interior extension arm（33）, the second extension arm（33）With the second groove（32）
Between oil sealing, oil sealing and the second extension arm are set（33）Interference fit.
9. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that second extension arm
（33）With the second groove（32）Between be equipped with multiple ring type seals.
10. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that the slag input cylinder（2）
The first sliding machine of front end（34）It is connected with slag input lid（35）, dregs discharge tube（3）The second sliding machine of rear end（36）It is connected with
Deslagging lid（37）, slag input lid（35）It is equipped with water inlet pipe（38）, deslagging lid（37）It is equipped with air bleeding valve（39）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810380656.9A CN108559812B (en) | 2018-04-25 | 2018-04-25 | A kind of steel slag waste heat recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810380656.9A CN108559812B (en) | 2018-04-25 | 2018-04-25 | A kind of steel slag waste heat recycle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108559812A true CN108559812A (en) | 2018-09-21 |
| CN108559812B CN108559812B (en) | 2019-11-12 |
Family
ID=63536622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810380656.9A Active CN108559812B (en) | 2018-04-25 | 2018-04-25 | A kind of steel slag waste heat recycle device |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000510197A (en) * | 1996-05-15 | 2000-08-08 | フェスト アルピネ インダストリアル サーヴィシス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for continuously producing vitreous or vitrified blast furnace slag |
| CN200981871Y (en) * | 2006-12-14 | 2007-11-28 | 上海宝钢设备检修有限公司 | Roller method steel slag treatment slag feeding device |
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| Publication number | Publication date |
|---|---|
| CN108559812B (en) | 2019-11-12 |
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