CN108559812B - 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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- CN108559812B CN108559812B CN201810380656.9A CN201810380656A CN108559812B CN 108559812 B CN108559812 B CN 108559812B CN 201810380656 A CN201810380656 A CN 201810380656A CN 108559812 B CN108559812 B CN 108559812B
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- cavity
- roller
- slag
- discharge tube
- heat
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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
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- 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 steel 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, is equipped with the third cavity being connected to cavity 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 is arranged cavity to absorb steel slag amount of residual heat and realizes that the heating of medium is recovered in steam pipe network in turn, to realize the waste heat recycling to roller process steel slag；The addition of unidirectional flow passage control device, can make heat transmission medium preferably complete to circulate, so that heat exchange be rapidly completed；The setting of sealing structure can be avoided a large amount of of heat and scatter and disappear, improves recovery 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 technique
Steel slag is the inevitable outcome of pneumatic steelmaking, accounts for about the 10%~15% of crude steel yield.The essential mineral group of steel 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 and reusing value.
CaO content is higher in the liquid steel slag as caused by pneumatic steelmaking, and 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 both at home and abroad and develops a variety for the treatment of fluids such as hot application method, wind quenching method, water quenching, tray method
The technology of state steel slag.But the various liquid steel slag processing techniques 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 processing technique used for more than ten years, and at home and abroad multiple steel mills have been applied popularization, drum process
Residues processing technique be by high temperature (900 ~ 1400 DEG C) melt steel 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 is existing
Very big progress, equipment more 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) 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, by removing
Dirt processing, effectively improves pollution of the Slag treatment to environment, environment protecting obtains improvement more thoroughly；
5) slag handled well, which can not land, to be directly entered high hopper and leaves concentratedly, and the number of having bad luck of slag is reduced, and shortens slag
Haulage time, improve working efficiency.
The use of the technology can greatly improve the operating environment of iron and steel enterprise's slag processing process, be steel slag subsequent processing
Process creates favorable conditions.
But be the significant drawback of drum process without heat recovery, it is wasted so as to cause a large amount of heat.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the purpose of the present invention is 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 steel 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 is arranged cavity to absorb steel slag amount of residual heat and realizes medium
It heats and then is recovered in steam pipe network, to realize the waste heat recycling to roller process steel slag；Unidirectional flow passage control device
Addition, heat transmission medium can be made preferably to complete to circulate, so that heat exchange be rapidly completed；The setting of sealing structure, can
It avoids a large amount of of heat from scattering and disappearing, improves recovery efficiency.
Detailed description of the invention
Fig. 1 is overall structure diagram of the 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 cross-sectional view of roller in the present invention.
Fig. 4 is the cross-sectional view of slag input cylinder in the present invention.
Fig. 5 is the cross-sectional view of dregs discharge tube in the present invention.
Fig. 6 is the portion 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 embodiment
Below in conjunction with attached drawing 1-7, specific embodiments of the present invention will be described in further detail.
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 sidewalls 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 it is empty can to enter first for medium in the 5th cavity 14
Chamber 12.
The one-way flow control device includes plugging block 15, and 15 two sides of plugging block offer 16 He of first runner respectively
Second flow channel 17, offers stepped hole between first runner 16 and second flow channel 17, stepped hole is the small structure of outer imperial palace, roller
It is fixed with a piston 19 through adjusting screw rod 18 on 1 side wall, one is connected with through spring 20 on piston 19 and extend into blocking up in stepped hole
First 21, when pressure is greater than pressure in second flow channel 17 in first runner 16, pressure difference pushes plug 21 to locking direction, therefore
Stepped hole cannot be opened, and when pressure is greater than pressure in first runner 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 runner 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 runner.
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 cooperatively 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 protrude 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 cooperatively 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 exhaust valve 39.
In the use of the present invention,
It is first turned on the valve of water supply pipe 10, is filled the water through the second cavity 15 into 1 wall of roller, it is small then to start the first sliding
Vehicle 34 opens slag input cylinder 2, hot steel slag is imported into slag input cylinder 2, then controls the first sliding machine 34 for 2 envelope of slag input cylinder
It closes, is filled the water by water inlet pipe 38 into roller 1, steel slag discharges a large amount of heat during cooling, at this time in 1 wall of roller
Water absorbs the heat of steel slag release, evaporates the water to form water vapour, when water vapor pressure reaches given threshold through the first cavity 12,
4th cavity 13, the second cavity 4 and the first heat pipe 8 enter in steam pipe network 11, due to the discharge of water vapour, in 1 wall of roller
Water is reduced, and 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
The heat of steel slag release, not will cause biggish 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, is filled the water by the water inlet pipe 38 on slag input lid 35 into roller 1, when pressure is excessive in roller 1
When, the exhaust valve 39 on deslagging lid 37 is opened, 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 enter in the 4th cavity 13 from the first cavity 12, 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 and release keep steady
Fixed quickly circulation.
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 heat during rotation.
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 mobile to the direction far from roller 1 during rotation, 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 set 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 set 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 guarantee the closure in cavity, improves the effect of heat exchange
Rate.
The multiple ring type seals being arranged, it is possible to reduce external sundries, dust or internal steel slag enter, and guarantee rotating part
Environment, prolong its service life.
Wherein, the spring 20 in one-way flow control device uses molybdenum steel, and piston 19 and plug 21 use high temperature resistant material
Material makes, and isolation is sealed between 1 wall of piston 19 and roller, heat is avoided to leak outside, and sealing when plug 21 and stepped hole contact avoids
It flows back.
Can adjust unidirectional flow passage control device by adjusting screw rod 18, the adjustable piston 19 of rotation adjusting screw rod 18 with
The distance between stepped hole, and then the decrement of adjustable spring 20, i.e. adjusting first runner 16 and 17 internal pressure of second flow channel
The critical value of power difference, the numerical value can be adjusted according to the actual situation.
Waste heat recovery device proposed by the invention is arranged cavity to absorb steel slag amount of residual heat and realizes medium
It heats and then is recovered in steam pipe network, to realize the waste heat recycling to roller process steel slag；Unidirectional flow passage control device
Addition, heat transmission medium can be made preferably to complete to circulate, so that heat exchange be rapidly completed；The setting of sealing structure, can
It avoids a large amount of of heat from scattering and disappearing, improves recovery efficiency.
Claims (4)
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 are connected with dregs discharge tube (3), slag input cylinder (2) and dregs discharge tube (3) is fixed and roller (1)
Rotation, roller (1) wall is interior to be equipped with cavity, is equipped with the second cavity (4) being connected to cavity, dregs discharge tube (3) wall in slag input cylinder (2) wall
It is interior equipped with the third cavity (5) being connected to cavity, the second cavity (4) connects steam pipe network (11) through the first heat pipe (8), third
Cavity (5) connects water supply pipe (10) through the second heat pipe (9)；
The cavity includes the first cavity (12) being arranged in roller (1) cylindrical wall, is respectively equipped on roller (1) two sidewalls
4th cavity (13) and the 5th cavity (14), the 4th cavity (13) are connected to the second cavity (4), and the 5th cavity (14) and third are empty
Chamber (5) connection；
It is equipped between first cavity (12) and the 4th cavity (13), between the first cavity (12) and the 5th cavity (14) more
A one-way flow control device, the first cavity (12) interior medium can enter the 4th cavity (13), and the 5th cavity (14) interior medium can
Into the first cavity (12)；
Slag input cylinder (2) first sliding machine of front end (34) is connected with slag input lid (35), dregs discharge tube (3) rear end second
Sliding machine (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 exhaust
Valve (39)；
The roller (1) seals when mutually rotating with slag input cylinder (2), dregs discharge tube (3), between roller (1) and slag input cylinder (2),
The first sealing structure (22) and second seals structure (23) are equipped between roller (1) and dregs discharge tube (3)；
First sealing structure (22) include be detachably secured on roller (1) first circle hub (24), slag input cylinder (2) or
The first connection ring (25) being cooperatively connected with the first circle hub (24), the first connection ring (25) and slag input are fixed on dregs discharge tube (3)
Cylinder (2) or dregs discharge tube (3) interference fit, the first circle hub (24) include the first extension arm (26) and the first block (27), and first connects
Connecing ring (25) includes the first groove (28) and sliding slot (29), and the first extension arm (26) protrudes into the first groove (28), the first elongation
There are gap between arm (26) and the first groove (28), it is fixed with oil sealing in gap, oil sealing is matched with the first extension arm (26) interference
It closes, the first block (27) is inserted into sliding slot (29)；
The second seals structure (23) includes the second connection ring (30) being fixed on roller (1), slag input cylinder (2) or deslagging
It is extended with the second circle hub (31) being cooperatively connected with the second connection ring (30) on cylinder (3), the is offered in the second connection ring (30)
Two grooves (32) are extended with the second extension arm (33) being inserted into the second groove (32) on the second circle hub (31), the second elongation
Oil sealing is set between arm (33) and the second groove (32), and oil sealing and the second extension arm (33) are interference fitted.
2. 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), and plugging block (15) two sides offer first runner (16) and second flow channel (17) respectively, and first
Stepped hole is offered between runner (16) and second flow channel (17), stepped hole is the small structure of outer imperial palace, is passed through on roller (1) side wall
Adjusting screw rod (18) is fixed with a piston (19), is connected with a plug extending into stepped hole through spring (20) on piston (19)
(21).
3. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that first extension arm
(26) multiple ring type seals are equipped between the first groove (28).
4. a kind of steel slag waste heat recycle device according to claim 1, which is characterized in that second extension arm
(33) multiple ring type seals are equipped between the second groove (32).
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 |
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| Publication Number | Publication Date |
|---|---|
| CN108559812A CN108559812A (en) | 2018-09-21 |
| CN108559812B true CN108559812B (en) | 2019-11-12 |
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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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| CN201014462Y (en) * | 2007-03-13 | 2008-01-30 | 乔文黄 | Cooling residue extraction mechanism of high temperature furnace slag |
| CN201028546Y (en) * | 2007-03-23 | 2008-02-27 | 杨连吉 | Roller slag cooling machine with independent cooling device |
| CN201583145U (en) * | 2009-12-11 | 2010-09-15 | 建业庆松集团有限公司 | Energy-saving slag-discharge cooler |
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| CN106052404A (en) * | 2016-07-22 | 2016-10-26 | 北京神雾环境能源科技集团股份有限公司 | Roller slag cooler |
| 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 |
|---|---|---|---|---|
| US6250109B1 (en) * | 1996-05-15 | 2001-06-26 | Voest-Alpine Industrial Services Gmbh | Method of continuously producing vitreous blast furnace slag |
| JP5338095B2 (en) * | 2008-03-20 | 2013-11-13 | Ｊｆｅスチール株式会社 | Slag cooling method |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201014462Y (en) * | 2007-03-13 | 2008-01-30 | 乔文黄 | Cooling residue extraction mechanism of high temperature furnace slag |
| CN201028546Y (en) * | 2007-03-23 | 2008-02-27 | 杨连吉 | Roller slag cooling machine with independent cooling device |
| CN201583145U (en) * | 2009-12-11 | 2010-09-15 | 建业庆松集团有限公司 | Energy-saving slag-discharge cooler |
| CN105865227A (en) * | 2016-05-30 | 2016-08-17 | 东方电气集团东方锅炉股份有限公司 | Roller type slag cooler using molten salt as cooling medium |
| 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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| CN108559812A (en) | 2018-09-21 |
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