CN108624729A - A kind of air-distribution device and slag granulating heat-exchange system - Google Patents
A kind of air-distribution device and slag granulating heat-exchange system Download PDFInfo
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- CN108624729A CN108624729A CN201810781439.0A CN201810781439A CN108624729A CN 108624729 A CN108624729 A CN 108624729A CN 201810781439 A CN201810781439 A CN 201810781439A CN 108624729 A CN108624729 A CN 108624729A
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- air
- slag
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- distribution plate
- air compartment
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- 239000002893 slag Substances 0.000 title claims abstract description 101
- 238000009826 distribution Methods 0.000 title claims abstract description 82
- 238000009477 fluid bed granulation Methods 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000012216 screening Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 7
- 238000007908 dry granulation Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 238000010791 quenching Methods 0.000 description 8
- 230000000171 quenching effect Effects 0.000 description 8
- 238000005243 fluidization Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241001235022 Aplysia punctata Species 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous waste material
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a kind of air-distribution device and slag granulating heat-exchange systems.Air-distribution device including be in tilted layout three-stage air distribution plate, blast cap and with the corresponding air compartment including the first sub- air compartment, the second sub- air compartment and the sub- air compartment of third of air distribution plate.First sub- air compartment, the second sub- air compartment and the sub- air compartment of third are by according to its fluidising air velocityw 1 、w 2 、w 3 Relationshipw 1 <w 2 <w 3 It is configured.System include slag granulating heat-exchanger rig, granulating device, lifting device, cooling device, screening plant and give slag device.Slag granulating heat-exchanger rig includes fluid bed granulation Heat Room and the air-distribution device in fluid bed granulation Heat Room bottom is arranged.The least significant end side of fluid bed granulation Heat Room bottom air distribution plate is provided with slag particle channel, is connected to lifting device lower part.Lifting device upper outlet is arranged at the top of cooling device.Cooling device bottom is connected with screening plant, and slag particle after cooling, which enters in screening plant, is sieved into thick slag and fine slag.Fine slag is transported to slag device and then is sent back to fluid bed granulation Heat Room as fluidizing agent.The present invention is cooled down with subregion, it is ensured that the effect of high intensity cooling.
Description
Technical field
The present invention relates to a kind of air-distribution device and slag granulating heat-exchange systems, belong at the metallurgical cinder in energy conservation and environmental protection field
Reason and heat recovery technical field.
Background technology
Slag is high temperature, molten state product in metallurgical production process, such as the blast furnace slag of liquid, slag, copper ashes,
In contain abundant heat resource.
Such as liquid blast furnace is a kind of typical slag, the blast furnace slag of quenching forms the amorphous of a large amount of glass phase
State substance has higher hydration activity, is the quality raw materials for producing the construction materials such as cement.Meanwhile liquid blast furnace temperature
Between 1300 DEG C to 1600 DEG C, there is very high heat energy recycle to be worth.
Currently, liquid blast furnace mainly uses water quenching to handle, the blast furnace slag after water quenching can be used for making the buildings such as cement
Material, main problem existing for water quenching have：Water consumption is big；Generate H2S and SOxCause atmosphere pollution；Thermal energy is not returned
It receives；Water Quenching Slag moisture content is high, and processing need to be dried in grinding；Contained subparticle is to components such as water pump and valves in recirculated water
Abrasion and blocking are very serious, and system maintenance work amount is big, increases maintenance cost.
The shortcomings that for blast furnace cinder water quenching technique, the 1970s, foreign countries just had begun working on dry granulation slag
Method, it is more representational to have wind quenching method and centrifugal process.Wind quenching method is to generate high-speed flow with high-power granulation blower fan to blow
Dissipating liquid blast furnace, major defect is that power consumption is big, equipment bulky complex, take up a large area, invest and operating cost is high,
In liquid blast furnace changes in flow rate, wind speed and air quantity are not easy to coordinate, and a large amount of cold wind enters system and also reduces heat time
The quality of receipts.Centrifugal process is to rely on turntable or the centrifugal force of revolving cup high speed rotation generation by liquid blast furnace slag granulation, although being not required to
Highly energy-consuming equipment as granulation blower fan is wanted, but high-speed rotating turntable or revolving cup are in direct contact with high-temperature slag, therefore drop
Low granulation apparatus reliability of operation, it is more sensitive to the temperature and changes in flow rate of liquid blast furnace to be granulated effect in addition, only
By adjusting rotating speed, the effect is unsatisfactory, and slag disperses at a high speed also be unfavorable for the compact design of equipment, high-temperature slag around
A certain position inside high-speed impact equipment is concentrated, the hot-spot of equipment is also easily caused and damages equipment.
In recent years, domestic part Research Team had also carried out relevant research, such as revolving cup to the granulating technique of slag
Granulation, mechanical wheel granulation, high pressure gas granulation etc. also attempt to develop on the basis of slag granulating technological development split type or one
Body formula is granulated and energy recycle device, and is constantly directed to problem in practice process and optimizes.
Invention content
The object of the present invention is to provide a kind of air-distribution devices and slag granulating heat-exchange system of heat exchange optimization.
The present invention is achieved through the following technical solutions：
A kind of air-distribution device, the air-distribution device include the three-stage air distribution plate being in tilted layout, are arranged on the air distribution plate
Several blast caps and the air compartment being arranged below the air distribution plate, the air compartment include one-to-one with three-stage air distribution plate
The first sub- air compartment, the second sub- air compartment and the sub- air compartment of third being arranged in juxtaposition, the first sub- air compartment, the second sub- air compartment and third
Air compartment is sequentially arranged along the air distribution plate least significant end to most significant end, and is arranged to positioned at the first sub- air compartment of air distribution plate least significant end
Its fluidising air velocityw 1 Minimum is arranged to its fluidising air velocity positioned at the sub- air compartment of the third of air distribution plate most significant endw 3 It is maximum.
In above-mentioned technical proposal, the wedge shaped arrangement of air distribution plate, and its least significant end is its small head end.
In above-mentioned technical proposal, 5 °≤α≤20 ° of key groove of the air distribution plate.
A kind of slag granulating heat-exchange system can be used in recovery waste heat after the molten slag dry granulation by slag chute, institute
The system of stating includes slag granulating heat-exchanger rig, granulating device, lifting device and cooling device；The slag granulating heat-exchanger rig packet
It includes fluid bed granulation Heat Room and the air-distribution device in fluid bed granulation Heat Room bottom is set；The air-distribution device includes tilting
The three-stage air distribution plate of arrangement, several blast caps being arranged on the air distribution plate and the wind being arranged below the air distribution plate
Room, the air compartment include the first sub- air compartment, the second sub- air compartment and third being arranged in juxtaposition correspondingly with three-stage air distribution plate
Sub- air compartment, the first sub- air compartment, the second sub- air compartment and the sub- air compartment of third are along the air distribution plate least significant end to most significant end successively cloth
It sets；The granulating device is arranged in the fluid bed granulation Heat Room upper outside, and below the slag chute；The stream
Change bed granulating heat-transfer room bottom and be provided with slag particle channel, and the slag particle channel is arranged in the least significant end side of the air distribution plate；
The slag particle channel is connected to the lifting device lower part；The lifting device upper outlet is arranged on the cooling device top
Portion.
In above-mentioned technical proposal, fluid bed granulation Heat Room lower part is in tapered setting.
In above-mentioned technical proposal, the fluid bed granulation Heat Room wall surface selects water wall structure.
Preferably, the described first sub- air compartment, the second sub- air compartment and the sub- air compartment of third are by according to its fluidising air velocityw 1 、w 2 、w 3 's
Relationshipw 1 <w 2 <w 3 It is configured.
In above-mentioned technical proposal, the system also includes screening plant and give slag device, the screening plant with it is described cold
But bottom of device is connected；The screening plant is connected to slag device with fluid bed granulation Heat Room lower part by described.
In above-mentioned technical proposal, fluid bed granulation Heat Room lower part is provided with pipe laying, and the pipe laying is along the cloth
Aerofoil inclined direction is arranged.
In above-mentioned technical proposal, the wedge shaped arrangement of air distribution plate, and its least significant end is its small head end；The air distribution plate
5 °≤α≤20 ° of key groove.
Compared with the prior art, the present invention has the following advantages：Wedge structure and the hot spraying particles shape of slag after jet stream
It is adapted, reduces air distribution plate area and Fluidization wind rate to greatest extent, to reduce power consumption and improve heat recovery rate；
Thin loopback of material is used to maintain material screening in fluid bed to exchange heat suitable for high intensity, the cooling effect of hot particle can be improved,
It is allowed to maintain higher vitreum content, obtains the dry slag particle of high-quality.
Description of the drawings
Fig. 1 is a kind of air-distribution device schematic top plan view according to the present invention.
Fig. 2 is a kind of slag granulating heat-exchange system schematic diagram according to the present invention.
In figure：1- slag granulating heat-exchanger rigs；2- slag chutes；3- granulating devices；4- lifting devices；5- cooling dresses
It sets；6- screening plants；11- fluid bed granulation Heat Rooms；12- air distribution plates；13- air compartments；The first sub- air compartments of 131-；132-
Second sub- air compartment；The sub- air compartment of 133- thirds；14- slag particles channel；15- pipe layings；16- blast caps；17- gives slag device.
Specific implementation mode
The specific implementation mode and the course of work of the present invention are further described below in conjunction with the accompanying drawings.
The orientation such as upper, lower, left, right, front and rear in present specification term be position relationship based on ... shown in the drawings and
It establishes.Attached drawing is different, then corresponding position relationship is also possible to change therewith, therefore cannot be interpreted as with this to protecting model
The restriction enclosed.
As shown in Figure 1, the present invention provides a kind of slag granulating heat-exchange system, can be used in the liquid in slag chute 2
Recovery waste heat after slag dry granulation.System includes slag granulating heat-exchanger rig 1, granulating device 3, lifting device 4 and cooling dress
Set 5.
Slag granulating heat-exchanger rig 1 includes fluid bed granulation Heat Room 11 and is arranged in 11 bottom of fluid bed granulation Heat Room
Air-distribution device.
Slag chute 2 comes from slag discharge mouth, and molten slag is transported to slag granulating heat-exchanger rig 1.2 entrance of slag chute
Top side in fluid bed granulation Heat Room 11 is set.Granulating device 3 is arranged in 11 upper outside of fluid bed granulation Heat Room,
And positioned at 2 lower section of slag chute.Granulating device 3 is granulated spout towards fluid bed granulation Heat Room 11.1000 ~ 1500 DEG C of liquid
Slag enters fluid bed granulation Heat Room 11 by 2 overflow of slag chute, is cured by chilling under the action of granulating device 3, is broken
It is less than the slag particle of 10mm at average diameter, slag particle is scattering into 11 surrounding of fluid bed granulation Heat Room and bottom in aplysia punctata.Fluidisation
11 lower part of bed granulating heat-transfer room is in tapered setting, convenient for collecting slag particle.11 wall surface of fluid bed granulation Heat Room selects water-cooling wall knot
Structure so that slag particle can be cooled when being scattering into wall surface further to be solidified or cool down.
It collects and continues naturally in order to make to spill after granulation the high temperature melting slag particle splashed in fluid bed granulation Heat Room 11
It is sent to next stage heat-exchanger rig, 11 bottom of fluid bed granulation Heat Room is provided with air-distribution device.Air-distribution device include air distribution plate 12,
Blast cap 16 and air compartment 13.Air distribution plate 12 is in tilted layout, and air compartment 13 is arranged below air distribution plate 12.It is provided on air distribution plate 12 several
A blast cap 16.Air distribution plate 12 is in an inclined direction pressed three-stage and is arranged, a corresponding sub- air compartment below each section of air distribution plate.Cause
This, air compartment 13 include the first sub- air compartment 131 being arranged in juxtaposition correspondingly with three-stage air distribution plate, the second sub- air compartment 132 and
The sub- air compartment of third 133.
As shown in Fig. 2, 12 wedge shaped arrangement of air distribution plate, and its least significant end is its small head end.The bevel edge of wedge shape is formed sharp
Angle is key groove.The key groove α of air distribution plate 12 is 5 °≤α≤20 °.Air distribution plate from low into high placement process, identical spacing
Air distribution plate cross-sectional area also increase.The wedge structure of air distribution plate cross section is mutually fitted with the hot spraying particles shape of slag after jet stream
It answers, reduces air distribution plate area and Fluidization wind rate to greatest extent, to reduce power consumption and improve heat recovery rate.
Landing point after being granulated due to high-temperature slag concentrates on the high side of air distribution plate, then in gravity and fluidisation wind action
It is lower to be flowed to downside, therefore, the material of air distribution plate high side often temperature highest.It, can if be arranged with conventional pressure air compartment
Upper part slag particle heat transfer effect can be caused bad.And according to the technique and scheme of the present invention, at this point, since each sub- air compartment is independent,
Wind pressure, wind speed can be different, are convenient for the optimizing regulation of region wind pressure and wind speed on air distribution plate.The sub- air compartment independently arranged
Also it is respectively connect with air feed system, so that the wind pressure of each sub- air compartment, wind speed can be separately adjustable.Therefore it can reduce more
Remaining air improves the thermal efficiency into fluidized bed by air distribution plate to reduce heat loss.
As a kind of technical solution of optimization, the first sub- air compartment 131, the second sub- air compartment 132 and the sub- air compartment of third 133 are along institute
It states 12 least significant end of air distribution plate to be sequentially arranged to most significant end, and the first sub- air compartment 131, the second sub- air compartment 132 and the sub- air compartment of third 133
By according to its fluidising air velocityw 1 、w 2 、w 3 Relationshipw 1 <w 2 <w 3 It is configured.That is, positioned at the first sub- wind of 12 least significant end of air distribution plate
Room 131 is arranged to its fluidising air velocityw 1 Minimum is arranged to its fluidisation positioned at the sub- air compartment of the third of 12 most significant end of air distribution plate 133
Wind speedw 3 It is maximum.To strengthen the cooling effect that hot particle trickles down region, the dry solid impurity particle of higher quality is obtained.
11 bottom of fluid bed granulation Heat Room is provided with slag particle channel 14, and slag particle channel 14 be arranged air distribution plate 12 most
Low side side so that slag particle enters slag particle channel under fluidized wind and gravity double reaction plus from fluid bed granulation Heat Room 11
14。
Slag particle channel 14 is connected to 4 lower part of lifting device；The setting of 4 upper outlet of lifting device, will at 5 top of cooling device
High temperature slag particle in slag particle channel 14 promotes into cooling device 5 further heat exchange cooling and carries out UTILIZATION OF VESIDUAL HEAT IN.
5 bottom of cooling device is connected with screening plant 6, slag particle after cooling enter in screening plant 6 be sieved into thick slag and
Fine slag.Thick slag carries out later use.Fine slag is then transported to slag device 17, to slag device 17 and fluid bed granulation Heat Room 11
Lower part is connected, and sending fine slag back to fluid bed granulation Heat Room 11 is used as fluidizing agent, strengthens in fluid bed granulation Heat Room 11
Slag particle flows and heat transfer effect.
Meanwhile to further strengthen slag particle heat transfer effect, 11 lower part of fluid bed granulation Heat Room is provided with pipe laying 15, pipe laying
15 arrange along 12 inclined direction of air distribution plate, reduce abrasion.
11 top side of fluid bed granulation Heat Room is equipped with exhanst gas outlet, is connect with follow-up waste gas utilization or processing unit,
High-temperature flue gas after further heat exchanging carries out heat recovery.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of air-distribution device, it is characterised in that：The air-distribution device includes the three-stage air distribution plate being in tilted layout（12）, setting
In the air distribution plate（12）On several blast caps（16）And it is arranged in the air distribution plate（12）The air compartment of lower section（13）, described
Air compartment（13）It include the first sub- air compartment being arranged in juxtaposition correspondingly with three-stage air distribution plate（131）, the second sub- air compartment（132）
With the sub- air compartment of third（133）, the first sub- air compartment（131）, the second sub- air compartment（132）With the sub- air compartment of third（133）Described in
Air distribution plate（12）Least significant end is sequentially arranged to most significant end, and is located at air distribution plate（12）First sub- air compartment of least significant end（131）It is set
It is set to its fluidising air velocityw 1 Minimum is located at air distribution plate（12）The sub- air compartment of third of most significant end（133）It is arranged to its fluidising air velocityw 3
It is maximum.
2. a kind of air-distribution device according to claim 1, it is characterised in that：The air distribution plate（12）Wedge shaped arrangement, and
Its least significant end is its small head end.
3. a kind of air-distribution device according to claim 2, it is characterised in that：The air distribution plate（12）5 °≤α of key groove
≤20°。
4. a kind of slag granulating heat-exchange system can be used in slag chute（2）Molten slag dry granulation after recovery waste heat,
It is characterized in that：The system comprises slag granulating heat-exchanger rigs（1）, granulating device（3）, lifting device（4）And cooling device
（5）；The slag granulating heat-exchanger rig（1）Including fluid bed granulation Heat Room（11）With setting in fluid bed granulation Heat Room
（11）The air-distribution device of bottom；The air-distribution device includes the three-stage air distribution plate being in tilted layout（12）, be arranged in the cloth wind
Plate（12）On several blast caps（16）And it is arranged in the air distribution plate（12）The air compartment of lower section（13）, the air compartment（13）Packet
Include the first sub- air compartment being arranged in juxtaposition correspondingly with three-stage air distribution plate（131）, the second sub- air compartment（132）With the sub- wind of third
Room（133）, the first sub- air compartment（131）, the second sub- air compartment（132）With the sub- air compartment of third（133）Along the air distribution plate（12）
Least significant end is sequentially arranged to most significant end；The granulating device（3）It is arranged in the fluid bed granulation Heat Room（11）Upper outside,
And it is located at the slag chute（2）Lower section；The fluid bed granulation Heat Room（11）Bottom is provided with slag particle channel（14）, and it is described
Slag particle channel（14）It is arranged in the air distribution plate（12）Least significant end side；The slag particle channel（14）With the lifting device
（4）Lower part is connected to；The lifting device（4）Upper outlet is arranged in the cooling device（5）Top.
5. a kind of slag granulating heat-exchange system according to claim 4, it is characterised in that：The fluid bed granulation Heat Room
（11）Lower part is in tapered setting；The fluid bed granulation Heat Room（11）Wall surface selects water wall structure.
6. a kind of slag granulating heat-exchange system according to claim 4 or 5, it is characterised in that：The cooling device（5）Choosing
With moving bed cooler.
7. a kind of slag granulating heat-exchange system according to claim 4, it is characterised in that：The first sub- air compartment（131）、
Second sub- air compartment（132）With the sub- air compartment of third（133）By according to its fluidising air velocityw 1 、w 2 、w 3 Relationshipw 1 <w 2 <w 3 It is configured.
8. a kind of slag granulating heat-exchange system according to claim 4, it is characterised in that：The system also includes screenings to fill
It sets（6）With give slag device（17）, the screening plant（6）With the cooling device（5）Bottom is connected；The screening plant（6）
Slag device is given by described（17）With the fluid bed granulation Heat Room（11）Lower part is connected.
9. a kind of slag granulating heat-exchange system according to claim 4, it is characterised in that：The fluid bed granulation Heat Room
（11）Lower part is provided with pipe laying（15）, the pipe laying（15）Along the air distribution plate（12）Inclined direction is arranged.
10. a kind of slag granulating heat-exchange system according to claim 4, it is characterised in that：The air distribution plate（12）In wedge
Shape is arranged, and its least significant end is its small head end；The air distribution plate（12）5 °≤α≤20 ° of key groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781439.0A CN108624729A (en) | 2018-07-17 | 2018-07-17 | A kind of air-distribution device and slag granulating heat-exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781439.0A CN108624729A (en) | 2018-07-17 | 2018-07-17 | A kind of air-distribution device and slag granulating heat-exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108624729A true CN108624729A (en) | 2018-10-09 |
Family
ID=63688864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810781439.0A Pending CN108624729A (en) | 2018-07-17 | 2018-07-17 | A kind of air-distribution device and slag granulating heat-exchange system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288438A (en) * | 2020-03-26 | 2020-06-16 | 江苏大学 | Fluidized bed combustion furnace and combustion method |
| EP4279614A1 (en) * | 2022-05-16 | 2023-11-22 | ThyssenKrupp MillServices & Systems GmbH | Waste heat use in cooling slags from iron and steel production |
| BE1030525B1 (en) * | 2022-05-16 | 2023-12-11 | Thyssenkrupp Millservices & Systems Gmbh | Use of waste heat when cooling slag from iron and steel production |
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