CN109425231A - A kind of sinter air-draft-type circulating cooling system and its technique - Google Patents
A kind of sinter air-draft-type circulating cooling system and its technique Download PDFInfo
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- 238000001816 cooling Methods 0.000 title claims abstract description 228
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000012546 transfer Methods 0.000 claims abstract description 85
- 230000008676 import Effects 0.000 claims abstract description 32
- 239000002918 waste heat Substances 0.000 claims abstract description 31
- 230000004087 circulation Effects 0.000 claims abstract description 30
- 230000005611 electricity Effects 0.000 claims abstract description 18
- 238000005245 sintering Methods 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 56
- 239000007789 gas Substances 0.000 claims description 46
- 239000004744 fabric Substances 0.000 claims description 42
- 230000001105 regulatory effect Effects 0.000 claims description 36
- 238000010276 construction Methods 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 17
- 239000000498 cooling water Substances 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 11
- 238000004064 recycling Methods 0.000 claims description 7
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- 238000011144 upstream manufacturing Methods 0.000 claims description 4
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 23
- 239000001301 oxygen Substances 0.000 description 23
- 229910052760 oxygen Inorganic materials 0.000 description 23
- 238000010586 diagram Methods 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000000112 cooling gas Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 238000010410 dusting Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 208000018875 hypoxemia Diseases 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 238000005453 pelletization Methods 0.000 description 2
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- 239000002699 waste material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
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Classifications
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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
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0005—Cooling of furnaces the cooling medium being a gas
-
- 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
Abstract
A kind of sinter air-draft-type circulating cooling system, the system include the vertical cooling furnace of air-draft-type, waste heat boiler and electricity generation system, circulation exhaust fan, hot wind transfer passage, cold wind transfer passage；Wherein: the vertical cooling furnace of air-draft-type includes feed bin, tower body, air inlet discharge device, discharge apparatus, discharge chute；Tower body top is equipped with air-draft-type hot-blast outlet；The side wall of discharge chute is equipped with cold wind import；Air-draft-type hot-blast outlet is connect by hot wind transfer passage with the air inlet of waste heat boiler and electricity generation system；Waste heat boiler and the air outlet of electricity generation system are connect by cold wind transfer passage with cold wind import.Cooling system and cooling technique of the invention can effectively cool down sinter, leak out small, while cooling wind can all carry out UTILIZATION OF VESIDUAL HEAT IN after exchanging heat with sinter, realize circulation.
Description
Technical field
The present invention relates to a kind of sintered ore cooling systems and sinter cooling residual heat to utilize system and its technique, and in particular to
A kind of sinter air-draft-type circulating cooling system and its technique, belong to ironmaking field and environment protection field.
Background technique
In recent years, with the growing tension of AND ENERGY RESOURCES CONSUMPTION IN CHINA and environmental protection relationship, energy conservation and environmental protection is by the whole society
Pay attention to, and becomes the crucial behave for establishing resource-conserving and environment-friendly society.The energy conservation and environmental protection work side's of being related to aspect
Face, the energy conservation and environmental protection of industrial circle is the key points and difficulties of energy conservation and environmental protection work, heavy-polluted especially for the high environment of energy consumption
Steel industry.Sintering process energy consumption accounts for about the 15% of total energy consumption of iron and steel enterprises, is only second to Iron-smelting and occupies second.Currently,
It is about 1.44GJ that large and medium-sized iron and steel enterprise, China, which produces the residual heat resources total amount that 1 ton of sinter generates, and recovery utilization rate is only
35%~45%.In terms of 2014 (8.91 hundred million tons of Sintering Yield), the sintering waste heat resource of 800,000,000 GJ of Shang Youyue is not returned
It receives and utilizes, serious environmental pollution is also formed while resulting in waste of resources.Therefore, waste heat resources in sintering process high efficiente callback
Become the energy-saving and environment-friendly important directions of sintering process and approach with utilizing.
Waste heat resources in sintering process mainly consists of two parts: a part is sintering mine sensible heat, accounts for about residual heat resources total amount
70%；Another portion is sintering flue gas sensible heat, accounts for about the 30% of residual heat resources total amount.Comparatively, sintering mine sensible heat quantity compared with
Greatly, quality is higher；And sintering flue gas sensible heat quantity is smaller, quality is lower.Based on this, the high efficiente callback and utilization of sintering mine sensible heat
The core and emphasis for being entire sintering waste heat recycling and utilizing.
During modern sintering process, " cooling " is more crucial one of process.Sinter is in the roasting by sintering machine
After burning, high temperature finished product mine has been formed, it is how cooling to its progress protectiveness under the premise of not influencing its quality and yield rate,
It can be sent into finished product ore storage bin through belt feeder, while the sensible heat energy perfection entrained by it being recycled, be all the time
The problem of skilled worker constantly studies in the industry.Since the 1960s, the cooling technique of sinter is rapidly developed,
It is broadly divided into cooling belt, ring type cooling and the cooling three categories of disc type.In the market competition in later period, belt cooling technology is washed in a pan
It eliminates, remaining ring type is cooling respectively to have its advantage and disadvantage with disc type cooling technology.
Currently, sinter is cooling mainly using the conventional belt based on strong wind rapid cooling, disposable handling cooling principle
Cooler or circular cooler.Regardless of using which kind of type of cooling, it is big all to there is air leak rate of air curtain in cooler, and blower power consumption is high, sensible heat
The problems such as rate of recovery is low, and boiler thermal efficiency is low.In other words, in the Vehicles Collected from Market requirement with green manufacturing energy-saving to sintering production
Under the overall situation being increasingly stringenter, originally device structure has been difficult to realize sintering mine sensible heat high efficiente callback and has utilized.Therefore, it dashes forward
The limitation that broken tradition ring type is cooling or belt is cooling, develops the technique and technical equipment of a kind of sintering mine sensible heat high efficiente callback,
It has been the energy-saving and environment-friendly only way of sintering industry.
Therefore, by proposing a kind of sinter pumping to a large amount of research work of domestic and international sintering mine sensible heat recycling aspect
Wind formula process of circulation cooling water.The technique has sinter cooling velocity slow, and ton consumption cooling air quantity is small, and exhausted air quantity is relatively small, gives up
Temperature degree is high, and boiler thermal efficiency is high, and cooling exhaust gas can all be utilized by boiler, and the sintering mine sensible heat rate of recovery is generally left up to 70%
Right cooling feature, the technique is cooling using air-draft-type, and main body cooling equipment is without exhaust gas outlet, substantially without dust emission, environmental protection
Effect is good.Also, the technique can also overcome the problems, such as double sintering of the sinter in vertical cooling device, prevent vertical cooling
There is blocking phenomenon in device.
Summary of the invention
In view of the problems of the existing technology, the present invention proposes a kind of sinter air-draft-type circulating cooling system and bosher
Skill, can effectively cool down sinter, leak out it is small, while cooling wind can all be carried out after exchanging heat with sinter waste heat benefit
With realization complete alternation.In addition, present inventor has found after study, the carbon residue burning in sinter generates sinter
Liquid phase is the main reason for causing agglomeration blocking in cooler, to agglomerate in cooler in order to prevent, the technique category that the present invention develops
In a kind of hypoxemia process of circulation cooling water.
In this application, cooler is downdraught cooler, and cooler has tower structure, therefore, also referred to as tower
Cooler, vertical cooling machine, vertical cooling furnace or the vertical cooling furnace of air-draft-type.
The first embodiment provided according to the present invention provides a kind of sinter air-draft-type circulating cooling system.
A kind of sinter air-draft-type circulating cooling system, the system include the vertical cooling furnace of air-draft-type, waste heat boiler and hair
Electric system, circulation exhaust fan, hot wind transfer passage, cold wind transfer passage.Wherein: the vertical cooling furnace of air-draft-type includes feed bin, tower
Body, air inlet discharge device, discharge apparatus, discharge chute.Tower body includes tower top, tower wall, tower bottom.The top of tower wall is arranged in tower top
Portion.Tower bottom is arranged in tower wall bottom.Feed bin be arranged in the top of tower top and be connected to inside tower body.Discharge device setting is entered the wind to exist
The lower section of tower bottom is simultaneously connected to tower body inside.The lower section of air inlet discharge device is arranged in discharge apparatus.Tower top or tower wall top are set
There is air-draft-type hot-blast outlet.The lower section of discharge apparatus is arranged in discharge chute.The top of discharge chute and the bottom of tower bottom connect,
Air inlet discharge device and discharge apparatus are located in the space of discharge chute and tower bottom composition.The bottom of discharge chute is equipped with discharge
Mouthful, the side wall of discharge chute is equipped with cold wind import.Air-draft-type hot-blast outlet passes through hot wind transfer passage and waste heat boiler and hair
The air inlet of electric system connects.Waste heat boiler and the air outlet of electricity generation system pass through the cold wind of cold wind transfer passage and discharge chute
Import connection.Exhaust fan is recycled to be arranged on cold wind transfer passage.
Preferably, the system further include: sintering machine, heat sinter conveying device.The discharge port of sintering machine is burnt by heat
Knot mine conveying device is connected to the feed inlet of feed bin.
Preferably, system further include: crusher.The discharge outlet of sintering machine is arranged in crusher, and crusher goes out
Material mouth is connected to the feed inlet of feed bin by heat sinter conveying device.
Preferably, the crusher is single roll crusher.
Preferably, hot wind transfer passage is equipped with the first deduster.
Preferably, being additionally provided with the second deduster on cold wind transfer passage.
Preferably, the upstream of circulation exhaust fan is arranged in the second deduster.
Preferably, cold wind transfer passage separates branch cold wind transfer passage branch.The head end of cold wind transfer passage branch
It is connected on cold wind transfer passage, the end of cold wind transfer passage branch is connected to the air inlet of sintering machine.
Preferably, cold wind transfer passage branch is connected to the downstream of circulation exhaust fan.
Preferably, cold wind transfer passage branch road is equipped with backheat blower.
Preferably, the system further include: cold sinter conveying device.Discharge gate is arranged in cold sinter conveying device
Lower section.
In the present invention, which further includes material envelope cloth tube.The top of material envelope cloth tube is connect with feed bin, is expected
Envelope cloth tube protrudes into tower body.
Preferably, the length of material envelope cloth tube is 30-70%, the preferably 40-65% of tower body height, more preferably
50-60%.In the present invention, the air inlet discharge device is hollow tubular structures, and air inlet discharge device side wall is shutter knot
Structure.
In the present invention, which further includes logistics air flow controller.The setting of logistics air flow controller exists
In tower body.Logistics air flow controller includes top plate and support construction.Support construction is arranged in tower bottom and is located in tower bottom
Heart position.The top of support construction is arranged in top plate.
Preferably, logistics air flow controller is located at the underface of feed bin.
In the present invention, which further includes edge air flow regulator.Edge air flow regulator is annular
Structure, edge air flow regulator are arranged in tower wall.Preferably, under edge air flow regulator is arranged in tower wall
Portion.
In the present invention, which further includes central gas stream regulating device.Central gas stream regulating device is annular
Structure, central gas stream regulating device are arranged in the exterior side wall of support construction.Preferably, central gas stream regulating device is arranged
In the middle and upper part of support construction.
In the present invention, the tower bottom of the vertical cooling furnace is equipped with multiple air inlet discharge devices, preferably 4-60 air inlet row
Expect device, further preferably 6-40 air inlet discharge device, more preferably 18-36 air inlet discharge device.
Preferably, the circumferencial direction of tower bottom is uniformly arranged in multiple air inlet discharge devices.
Preferably, multiple air inlet discharge devices are being arranged to multi-turn from the center of tower bottom to edge, preferably 1-4 circle,
More preferably 2-3 circle.It is further preferred that the air inlet discharge device on tower bottom outer ring is more than the air inlet discharge dress on tower bottom inner ring
It sets, entering the wind the number of discharge device, from coil to coil successively decreases from outside to inside in tower bottom.The lower section of each air inlet discharge device is set respectively
There is a discharge apparatus.
The vertical cooling furnace further includes auxiliary air inlet channel, and auxiliary air inlet channel is arranged in tower bottom and runs through tower bottom.
Preferably, auxiliary air inlet channel is polymorphic structure or polygonized structure or ring structure or circular cone porous structure.
It is further preferred that auxiliary air inlet channel is conical structure, the conical surface is shutter or porous plate.
Auxiliary air inlet channel is slab construction, is connected to outside the lower section in auxiliary air inlet channel and tower bottom, auxiliary air inlet channel
Top surface be porous plate.The top surface in auxiliary air inlet channel can be concordant with the upper surface of tower bottom, can also be lower than the upper table of tower bottom
Face can be above the upper surface of tower bottom.That is, the top surface in auxiliary air inlet channel can in the top of tower bottom upper surface,
Can also be in the lower section of tower bottom upper surface, it can also be in the centre of tower bottom thickness direction.
Auxiliary air inlet channel is ring structure, and auxiliary air inlet channel roof and side wall are shutter or porous plate.
In addition to entering the wind discharge device, auxiliary air inlet channel is opened up in tower bottom, the auxiliary air inlet channel and air inlet discharge dress
It sets and does not interfere with one another, cooling wind enters in tower body except through air inlet discharge device, can also be entered by auxiliary air inlet channel
In tower body.Preferably, auxiliary air inlet channel is provided on the position not interfered with one another on bottom plate with air inlet discharge device, can only be made
Cooling air-flow passes through, and cannot be that material passes through；Preferably, auxiliary air inlet channel is polymorphic structure or polygonized structure or annular
Structure or rounded porous structure.Preferably, one or more can be set in auxiliary air inlet channel.
In the present invention, the discharge apparatus is mobile board-like discharge apparatus, apron feeder or electric vibrating feeder.
Preferably, mobile board-like discharge apparatus includes driving device, movable plate, bracket, push-pull rod.Bracket setting into
The lower section of wind discharge device and be located at discharge chute in, movable plate be arranged on bracket, driving device be arranged in discharge chute
Outside, push-pull rod one end connects driving device, and the other end of push-pull rod passes through discharge chute and connect with movable plate.As excellent
Choosing, mobile board-like discharge apparatus further include baffle, baffle plate setting movable plate top and be fixedly connected with bracket.
Preferably, which further includes temperature element.The side wall of air inlet discharge device is arranged in temperature element
On.Preferably, temperature element is arranged on the side wall of air inlet discharge device and extend into the inside of air inlet discharge device.Make
To be preferred, temperature element is thermocouple temperature sensor.
Preferably, the air inlet discharge device is the column structure of polygon or round cross section.
Preferably, tower bottom is equipped with multiple auxiliary air inlet channels, and preferably 1-20, more preferably 2-10 is a, into one
Step is preferably 3-8.
Preferably, the tower bottom is slab construction or cone bottom structure (that is, cone cylinder structure suitable for reading greater than lower mouth).Tower top
For cone structure (that is, cone cylinder structure suitable for reading less than lower mouth).
Preferably, the top plate of the logistics air flow controller is flat-tope structure or cone structure.Preferably, top plate
Side be equipped with shutter and go out compression ring, the bottom of top plate is equipped with logistics air flow controller air inlet.
Preferably, edge air flow regulator and/or central gas stream regulating device are equipped with and wear stomata.Preferably,
It is equipped at the top and bottom of edge air flow regulator and central gas stream regulating device and wears stomata.Preferably, edge air-flow
The top and bottom of regulating device and central gas stream regulating device are separately equipped with multi-turn from outside to inside in a circumferential direction
Stomata is worn, preferably 1-10 circle wears stomata, and more preferably 2-4 circle wears stomata.
Preferably, which further includes control system, and control system connects discharge apparatus, temperature element, heat
Sinter conveying device and cold sinter conveying device, and control system separately controls each air inlet discharge device
The driving device of lower section discharge apparatus.
Second of the embodiment provided according to the present invention provides a kind of sinter air-draft-type process of circulation cooling water.
A kind of sinter air-draft-type process of circulation cooling water or the method using system described in the first embodiment, this method
The following steps are included:
1) defeated by heat sinter conveying device by the heat sinter that sintering machine sintering obtains after broken crusher machine
It send to the feed inlet of feed bin；Heat sinter is entered in tower body by feed bin, material envelope cloth tube, falls in logistics air flow controller
On, sinter is continuously flowed from the surrounding of logistics air flow controller from top to bottom under the effect of gravity, into vertical cooling furnace
It is cooled down；
2) cooling wind enters discharge chute from the cold wind import on discharge chute side wall under the action of recycling exhaust fan
It is interior, then from air inlet discharge device, or from air inlet discharge device and auxiliary air inlet channel, into tower body；Cooling wind and tower
Interior sinter carries out heat exchange；Alternatively, cooling wind enters in tower body from the cold wind import on discharge chute side wall, cooling wind with
The intracorporal sinter of tower carries out heat exchange, and an air cooling wind passes through sinter and enters tower body top above the charge level of sinter
Cavity in, another part cooling wind passes through sinter and enters from edge air flow regulator and/or central gas stream regulating device
In the cavity on tower body top, high-temperature hot-air is formed；Later, high-temperature hot-air is discharged from air-draft-type hot-blast outlet；
3) high-temperature hot-air is delivered to waste heat boiler and power generation by hot wind transfer passage after the discharge of air-draft-type hot-blast outlet
System carries out UTILIZATION OF VESIDUAL HEAT IN；After cogeneration, temperature reduces high-temperature hot-air, forms low temperature hot wind；Low temperature hot wind is passing through
The cold wind import that cold wind transfer passage is delivered to discharge chute is recycled；
4) sinter is discharged on discharge apparatus after vertical cooling furnace is cooling from one or more air inlet discharge device,
Sinter on discharge apparatus falls into discharge chute, is discharged from the discharge gate of discharge chute.
Preferably, being dusted when high-temperature hot-air is conveyed by hot wind transfer passage by the first deduster；Low Temperature Thermal
It is dusted when wind is conveyed by cold wind transfer passage by the second deduster.
Preferably, the cold wind import that a part of low temperature hot wind in cold wind transfer passage is delivered to discharge chute is followed
Ring utilizes, and another part low temperature hot wind in cold wind transfer passage is delivered to sintering machine by cold wind transfer passage branch and is burnt
Knot keeps air balance.
The third embodiment according to the present invention, provides a kind of application method of the cooler of sinter:
A kind of cooling means of sinter, method includes the following steps:
1) heat sinter is entered in tower body by feed bin, sinter continuous flowing from top to bottom under the effect of gravity, into
Enter vertical cooling furnace to be cooled down；
2) cooling wind enters in tower body from air inlet discharge device, and cooling wind and the intracorporal sinter of tower carry out heat exchange, it
Afterwards, it is discharged from air-draft-type hot-blast outlet by exhaust fan；
3) sinter is discharged on discharge apparatus after vertical cooling furnace is cooling from air inlet discharge device.
4th kind of embodiment according to the present invention, provides a kind of cooling means of sinter:
A kind of cooling means of sinter, method includes the following steps:
1) heat sinter is entered in tower body by feed bin, material envelope cloth tube, is fallen on logistics air flow controller, is sintered
Mine is continuously flowed from the surrounding of logistics air flow controller from top to bottom under the effect of gravity, is carried out into vertical cooling furnace cold
But；
2) cooling wind enters in discharge chute from the cold wind import on discharge chute side wall, then from air inlet discharge device,
Or from air inlet discharge device and auxiliary air inlet channel, into tower body, cooling wind and the intracorporal sinter of tower carry out heat exchange；
Alternatively, cooling wind enters in tower body from the cold wind import on discharge chute side wall, cooling wind and the intracorporal sinter of tower carry out heat
Exchange, a part of cooling wind pass through sinter and enter in the cavity on tower body top above the charge level of sinter, and another part is cold
But wind passes through sinter and enters in the cavity on tower body top from edge air flow regulator and/or central gas stream regulating device；It
Afterwards, it is discharged from air-draft-type hot-blast outlet by exhaust fan；
3) sinter is discharged on discharge apparatus after vertical cooling furnace is cooling from one or more air inlet discharge device,
Sinter on discharge apparatus falls into discharge chute, is discharged from the discharge gate of discharge chute.
In the above-mentioned methods, step 3) specifically: sinter is after vertical cooling furnace is cooling, and control system is according to each
Temperature element on air inlet discharge device monitors the temperature of sinter at each air inlet discharge device position；
If reaching emission request, the driving device of discharge apparatus below the corresponding air inlet discharge device of control system control,
Driving device drives corresponding movable plate mobile, so that the sinter at the air inlet discharge device position be discharged；Sinter passes through
Discharge apparatus falls into discharge chute, is discharged from the discharge gate of discharge chute；Preferably, when discharge, control system passes through thermometric
Element detects the temperature of sinter at the air inlet discharge device position simultaneously, if temperature is higher than emission request, control system control
Driving device processed stops the movement of movable plate；
If not reaching emission request, without discharge at the air inlet discharge device position.
In the present invention, vertical cooling furnace uses air-draft-type, remains negative pressure in vertical cooling furnace, circulating fan is in warm
Wind enrichment region generates negative pressure, and the hot wind in it is taken away.
The cooling system and technique are mainly by the vertical cooling furnace of air-draft-type, heat sinter conveying device, dust-extraction unit, waste heat
The composition such as boiler and electricity generation system, circulation exhaust fan, backheat blower, is a sinter by the system that these process units form
Air-draft-type process of circulation cooling water.Wherein, circulating fan is induced draft fans, and the vertical cooling furnace of air-draft-type is mainly by feed bin, material envelope cloth
The compositions such as expects pipe, tower body, air inlet discharge device, discharge apparatus, discharge chute, cold wind import, hot-blast outlet.
By the broken heat sinter of single roll crusher, the vertical cooling of air-draft-type is transported by heat sinter conveying device
Furnace roof portion is entered in tower body by feed bin, material envelope cloth tube, sinter continuous flowing from top to bottom under the effect of gravity, warp
Vertical cooling furnace is crossed, the cooling wind in cooling zone and tower from bottom to top carries out countercurrent heat exchange, and sinter temperature is cooled to 150
DEG C or less after, be discharged in discharge chute by the discharge device of vertical cooling furnace lower part, then drain into cold sinter conveying device
On, then by cold sinter conveying device sinter after cooling is transported into subsequent processing.
Cooling gas (or cooling wind) enters the wind discharge under the action of air-draft-type circulating fan, from vertical cooling furnace lower part
Device is pumped into tower body, passes through the sinter bed of material from bottom to top in cooling section, and carry out countercurrent heat exchange with sinter.Heat exchange
Cooling gas temperature gradually rises afterwards, and sinter charge level is discharged in vertical cooling furnace tower, forms high-temperature hot-air.High-temperature hot-air exists
Enrichment in material upper cavity region, that is, hot wind enrichment region in tower, then be discharged through hot-blast outlet.Height after vertical cooling furnace is discharged
Wind is warmed by entering subsequent waste heat boiler and electricity generation system after primary dedusting system dedusting.After cogeneration,
High-temperature hot-air temperature is down to 100 DEG C of -150 DEG C or so formation low temperature hot winds, send low temperature hot wind to vertical using circulating fan
In cooling furnace discharge chute, carries out exhausting and recycle.Since the vertical cooling furnace of this patent is air-draft-type, therefore some wind
It leaks into tower, causes systematic air flow uneven, backheat blower is provided at circulating fan air outlet thus, by extra low temperature
Hot wind is taken away, send to hot gas sintering or for sintering production, guarantees that systematic air flow balances with this.
Dust pelletizing system in the technique can be divided into primary dedusting and final dusting, and final dusting can not have to.Once remove
Dirt is set between vertical cooling machine and waste heat boiler, for removing the dust for the hot wind that vertical cooling machine comes out, can be used
Impact board-like gravitational precipitator.Final dusting can use multi-tube dust cleaner between waste heat boiler and circulating fan.
Cold sinter conveying device in the technique can be feeding cart or chain scraper conveyor.
The system and technique are a kind of small wind slow cooling technique, compare ring cold machine cooling technique, carry out in vertical cooling furnace
When sinter is cooling, reduce ton mine cooling air quantity, improve thickness of feed layer, extend cooling time, sinter under the effect of gravity from
Upper and lower continuous flowing carries out countercurrent heat exchange with the cooling wind in machine from bottom to top.The type of cooling, from vertical cooling furnace
The hot blast temperature that the hot blast temperature of portion's discharge is discharged than former ring cold machine is enhanced, and all hot wind can be applied
In cogeneration, former ring cold machine discharge hot wind is able to use only less than 50% hot wind and afterheat generating system, therefore is sintered
Mine Exposure degree rate has large increase.
The system and technique are a kind of process of circulation cooling water.The hot wind of vertical cooling furnace discharge passes through dust pelletizing system, waste heat
Vertical cooling furnace is entered after boiler and electricity generation system, circulating fan to be recycled.Into the cooling wind of vertical cooling furnace
It can be all used as cooling down, and the heat that cooling wind is taken out of from sinter can be all utilized, and former ring cold machine leakage
Wind rate is very high, causes the waste of the energy.
Since the system and technique are a circulation technology processes, after circular flow several times, in recyclegas
Oxygen passes through to react with charcoal remaining in sinter, and content becomes seldom, recyclegas essentially becomes the atmosphere of few oxygen.It burns
The necessary condition burnt of charcoal in knot mine first is that oxygen, and the process cycles gas essentially becomes the atmosphere of few oxygen,
Even if in the process double sintering phenomenon will not occur for the charcoal that remaining is not burnt down largely in sinter, to will not send out
Raw the phenomenon that generating agglomeration blocking equipment due to double sintering in vertical cooling furnace.
Tower body is located at below feed bin, is divided into hot wind enrichment region and cooling zone from top to bottom inside tower body, is hot wind richness
The place of collection and heat sinter cooling.The hot wind enrichment region of its middle and upper part is mainly to generate after carrying out heat exchange with heat sinter
The place of hot wind enrichment, the cooling zone of lower part are the places that heat sinter and cooling wind carry out countercurrent heat exchange.Since this is vertical
Cooling furnace is air-draft-type, and hot wind enrichment region of the exhaust fan in tower body above charge level generates negative pressure, the intracorporal hot wind of tower is taken away.
Due to hot wind enrichment region negative pressure, cooling wind enters inside tower body out of feed bin, material envelope cloth tube in order to prevent, therefore needs
The height of material envelope cloth tube is improved, the height (or length) of material envelope cloth tube is the 30-70%, preferably 40- of tower body height
The height of 65%, more preferably 50-60%, i.e. material envelope cloth tube is higher than the height of cooling zone in tower body.In general, material envelope cloth
The height of pipe is that 1m-10m is highly more preferably 4-8m.
Air inlet discharge device is located at tower body lower part, and main function is that passing away is provided for sinter, while to cool down
Wind provides the channel for entering tower body.The structure for entering the wind discharge device can be the column of the various shapes cross sections such as polygon or round
Shape structure.In order to make air-flow and material stream more uniform, settable multiple air inlet discharge devices in the present invention, multiple air inlet discharges
The circumferencial direction of tower bottom is uniformly arranged in device, preferably, multiple air inlet discharge devices are from the center of tower bottom to edge
It is arranged to multi-turn, the quantity of the air inlet discharge device on general tower bottom outer ring is more than the air inlet discharge device on tower bottom inner ring.Into
The side wall of wind discharge device is shutter, and cooling wind enters tower body accumulation by entering the wind the shutter of discharge device side wall
In sinter, sinter is cooled down, sinter after cooling by gravity flows into air inlet discharge device, then
It is discharged by discharge apparatus.
In the present invention, which further includes the discharge chute being arranged in below discharge apparatus.Discharge chute
The sinter that mainly discharge apparatus is discharged for effect is concentrated, and is then discharged by discharge gate.When the vertical cooling furnace is for following
When ring cooling system, the top of discharge chute is then connect with tower body bottom, enters the wind discharge device and discharge apparatus is slipped positioned at discharge
In the space of slot and tower bottom composition, while cold wind import is set on the side wall of discharge chute, circulating cooling wind is from cold wind import
Into discharge chute, then enters inside tower body via air inlet discharge device and sinter is cooled down.
In the present invention, in order to allow air-flow and material stream more evenly, the vertical cooling furnace further include be arranged inside tower body
Logistics air flow controller.Logistics air flow controller includes that the support construction that tower bottom center is arranged in and setting are being propped up
Top plate above support structure, top plate are flat-tope structure or cone structure.The side of top plate is equipped with shutter and goes out compression ring, the bottom of top plate
Portion is equipped with logistics air flow controller air inlet.After adding logistics air flow controller, center material can be made to shunt outward,
It can make air-flow and material stream more evenly, reduce cooling dead zone.And top plate side shutter goes out the setting of compression ring, it is possible to reduce interior
Circle air inlet discharge device enters the resistance of cooling wind in tower, is more conducive to the uniformity of tower interior air-flow distribution.
In the present invention, in order to allow air-flow, more evenly the vertical cooling furnace further includes the edge air-flow being arranged in tower wall
Regulating device and the central gas stream regulating device being arranged in the support construction exterior side wall of logistics air flow controller.Edge gas
The top and bottom of flow modulation device and central gas stream regulating device are separately equipped with more from outside to inside in a circumferential direction
Circle wears stomata.After adding edge air flow regulator and central gas stream regulating device, edge cooling wind and center can be made cooling
Wind can make air-flow more uniform to intermediate flow, it is therefore prevented that since air-flow is by the way that material path is short or edge effect
Caused by cooling air-flow flowed out too much from edge or center, thus caused by intermediate material cooling wind it is few and cooling is bad
Effect.
Preferably, which further includes multiple temperature elements, and position is located on the side wall of air inlet discharge device,
And it extend into the inside of air inlet discharge device.Preferably, temperature element can be thermocouple temperature sensor.
Feed bin is a cylindrical or rectangular barrel-like structure, for buffering the heat sinter for holding conveyer transport and coming, material
Orlop portion is fixedly connected on tower top.Material envelope cloth tube is a cylindrical or rectangular barrel-like structure, is located at bin bottom, the upper end
It is fixedly connected with bin bottom, lower end is protruded into below tower top, is located inside tower body, wherein sinter can be from the bottom of feed bin
It is entered inside material envelope cloth tube under the effect of gravity, and can be free from material envelope cloth tube lower openings under gravity
Outflow.Tower wall is a cylindrical or rectangular barrel-like structure, and the upper end is fixedly connected with tower top, and the weight of tower top is undertaken on tower wall one
Week.Tower bottom is located at tower wall lower end, fixes with basis.Generally, hot air draft mouth is located at tower wall top or tower top, with tower wall or tower top
It is fixedly connected, and is connected to tower body inside, hot wind passes through the charge level on bed of material top after the bed of material, into tower bottom and tower wall shape
At tower body upper end non-material area, then using hot air draft mouth be discharged；Preferably enter subsequent afterheat generating system.
Preferably, which also has self feed back discharge regulatory function.The sintering of corresponding region is detected by temperature element
It is corresponding just normally to open the region after sinter temperature of some circumferential position of detection reaches cooling effect for mine temperature
Air inlet discharge device below discharge apparatus, carry out normal discharge, conversely, allow the region sinter again cool down one section when
Between, after sinter temperature reaches cooling effect, then carry out normal discharge.
Generally, the height for the tower body being made of tower top, tower wall and tower bottom is usually 4-30 meters, and preferably 5-25 meters, more preferably
6-20 meters, further preferably 8-15 meters.The overall diameter of tower body is generally 8-30 meters, preferably 9-27 meters, preferably 10-25 meters, excellent
Select 11-22 meters, it is 12-20 meters more preferable.
In addition, technique of the invention belongs to hypoxemia process of circulation cooling water.Carbon residue burning in sinter generates sinter
Liquid phase is the main reason for causing agglomeration blocking in cooler, and agglomeration in cooler in order to prevent develops a kind of hypoxemia circulation
Cooling technique.
The present invention provides one kind to prevent method of agglomerating in cooler.By theory analysis, when oxygen content in cooling gas
When lower than some value, carbon residue burning is difficult that sinter is made to generate liquid phase, thus sinter would not be caused to form bulk, this value
We are known as safe oxygen position.This value is preferably lower than 18%, is more preferably lower than 12%.Therefore control complete alternation cooling gas
It is the basic method for preventing from agglomerating in cooler that middle oxygen content, which is in safe oxygen position,.
Method or technique of the invention generally comprises the following two stage:
1, initial safe oxygen position generation method:
Before cooling system brings into operation, safe oxygen position environment is generated in systems first, the specific method is as follows: first
Circulating fan is opened, the valve of fume generating furnace and/or nitrogen pipeline is then opened, hypoxic flue gas is passed through into system
5%) and/or nitrogen (oxygen content is preferably lower than 12%, the oxygen more preferably lower than, by several hours circulations, in system
Content is at safe oxygen position, can close the valve of fume generating furnace and/or nitrogen pipeline at this time, carries out subsequent behaviour
Make.
2, normal production safety oxygen position keeping method:
After initial safe oxygen position generates, system starts to operate normally, because system is complete alternation operation, but has certain
Air be leaked into system, and the oxygen content of air is higher.But the leakage rate of air is seldom, compared with safe oxygen position, institute
It reacts and consumes with the carbon residue in sinter containing rich oxygen.By calculating, when system air leakage amount is in 1000Nm3/h
When, it is only necessary to carbon residue content reaches 0.01% or so and can consume the rich oxygen leak into air in sinter, from
Without increasing the oxygen content in system circulation gas.After testing, the carbon residue content after former ring cold machine is cooling in sinter exists
0.1% or so, therefore, after initial safe oxygen position generates, during normal production, the oxygen content in system will not be increased, thus
Bulk will not be generated by ensuring in cooler, block tower body.
Compared with prior art, a kind of sinter air-draft-type circulating cooling system of the invention and technique have and following have
Beneficial technical effect:
1, technique of the invention has sinter cooling velocity slow, and ton consumption cooling air quantity is small, and exhausted air quantity is relatively small, exhaust gas
Temperature is high, and boiler thermal efficiency is high, and cooling exhaust gas can all be utilized by boiler, and the sintering mine sensible heat rate of recovery is generally up to 70% or so
Cooling feature.Also, the technique can also overcome the problems, such as double sintering of the sinter in vertical cooling device, prevent vertical
There is blocking phenomenon in cooling device；
2, cloth is uniform in present device, and discharge is uniform, and cloth wind is uniform.Also have and region row is carried out according to cooling effect
Expect the function of adjusting, therefore the cooler good cooling results, hot blast temperature height meet wanting for sinter adverse current deep bed sintering cooling technique
It asks；
3, vertical cooling machine of the present invention compared with the ring cold machine of the prior art, do not leak out by simple structure and reliable sealing,
Plant maintenance amount is small, and waste heat recovery efficiency is high；
4, cooling gas recycles, " zero " discharge；
5, oxygen content is low (for the part of air) in cooling gas, reduces the two of the heat sinter on tower body top
Secondary sintering avoids agglomerating.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of sinter air-draft-type circulating cooling system of the present invention；
Fig. 2 is the structural schematic diagram of the vertical cooling furnace of the present invention；
Fig. 3 is the structural schematic diagram that the vertical cooling furnace of the present invention is equipped with two circle air inlet discharge devices；
Fig. 4 is the structural schematic diagram that the vertical cooling furnace of the present invention is equipped with logistics air flow controller；
Fig. 5 is the structural representation that the vertical cooling furnace of the present invention is equipped with central gas stream regulating device and edge air flow regulator
Figure；
Fig. 6 is the structural schematic diagram of the multiple air inlet discharge devices of the vertical cooling furnace of the present invention；
Fig. 7 is the structural schematic diagram of the vertical circle of the cooling furnace two air inlet discharge device of the present invention；
Fig. 8 is the structural schematic diagram of the present invention vertical circle of cooling furnace two air inlet discharge device and auxiliary air inlet channel；
Fig. 9 is the structural schematic diagram that the vertical cooling furnace tower bottom of the present invention is equipped with auxiliary air inlet channel；
Figure 10 is another design structure schematic diagram that the vertical cooling furnace tower bottom of the present invention is equipped with auxiliary air inlet channel；
Figure 11 is the third design structure schematic diagram that the vertical cooling furnace tower bottom of the present invention is equipped with auxiliary air inlet channel；
Figure 12 is the top view of the mobile board-like discharge apparatus of the vertical cooling furnace of the present invention；
Figure 13 is the main view of the mobile board-like discharge apparatus of the vertical cooling furnace of the present invention；
Figure 14 is the structural schematic diagram of the mobile board-like discharge apparatus both ends discharging of the vertical cooling furnace of the present invention；
Figure 15 uses schematic diagram for the mobile board-like discharge apparatus of the vertical cooling furnace of the present invention；
Figure 16 is the structural schematic diagram of the vertical cooling furnace edge air flow regulator of the present invention；
Figure 17 is a kind of control system schematic diagram of sinter air-draft-type circulating cooling system of the present invention.
Appended drawing reference:
A0: the vertical cooling furnace of air-draft-type；A1: sintering machine；A2: heat sinter conveying device；A3: crusher；A4: the first removes
Dirt device；A5: waste heat boiler and electricity generation system；A6: circulation exhaust fan；A7: the second deduster；A8: backheat blower；A9: cold sintering
Mine conveying device；L1: hot wind transfer passage；L2: cold wind transfer passage；1: feed bin；2: tower body；201: tower top；202: tower wall；
203: tower bottom；3: air inlet discharge device；4: discharge apparatus；401: driving device；402: movable plate；403: bracket；404: push-and-pull
Bar；405: baffle；5: air-draft-type hot-blast outlet；6: material envelope cloth tube；7: discharge chute；701: discharge gate；702: cold wind import；
8: logistics air flow controller；801: top plate；802: support construction；9: edge air flow regulator；10: central gas stream adjusts dress
It sets；11: temperature element；12: auxiliary air inlet channel；K: control system.
Specific embodiment
The first embodiment provided according to the present invention provides a kind of sinter air-draft-type circulating cooling system.
A kind of sinter air-draft-type circulating cooling system, the system include the vertical cooling furnace A0 of air-draft-type, waste heat boiler and
Electricity generation system A5, circulation exhaust fan A6, hot wind transfer passage L1, cold wind transfer passage L2.Wherein: the vertical cooling furnace A0 of air-draft-type
Including feed bin 1, tower body 2, air inlet discharge device 3, discharge apparatus 4, discharge chute 7.Tower body 2 includes tower top 201, tower wall 202, tower
Bottom 203.The top of tower wall 202 is arranged in tower top 201.Tower bottom 203 is arranged in 202 bottom of tower wall.Feed bin 1 is arranged in tower top 201
Top and be connected to inside tower body 2.Air inlet discharge device 3 be arranged in tower bottom 203 lower section and be connected to inside tower body 2.Row
The lower section of air inlet discharge device 3 is arranged in material equipment 4.Tower top 201 or 202 top of tower wall are equipped with air-draft-type hot-blast outlet 5.Discharge
The lower section of discharge apparatus 4 is arranged in chute 7.The top of discharge chute 7 is connect with the bottom of tower bottom 203, enters the wind 3 He of discharge device
In the space that discharge apparatus 4 is located at discharge chute 7 and tower bottom 203 forms.The bottom of discharge chute 7 is equipped with discharge gate 701, discharge
The side wall of chute 7 is equipped with cold wind import 702.Air-draft-type hot-blast outlet 5 passes through hot wind transfer passage L1 and waste heat boiler and hair
The air inlet of electric system A5 connects.The air outlet of waste heat boiler and electricity generation system A5 pass through cold wind transfer passage L2 and discharge chute
7 cold wind import 702 connects.Exhaust fan A6 is recycled to be arranged on cold wind transfer passage L2.
Preferably, the system further include: sintering machine A1, heat sinter conveying device A2.The discharge port of sintering machine A1 is logical
Cross the feed inlet that heat sinter conveying device A2 is connected to feed bin 1.
Preferably, system further include: crusher A3.The discharge outlet of sintering machine A1 is arranged in crusher A3, is crushed
The discharge port of machine A3 is connected to the feed inlet of feed bin 1 by heat sinter conveying device A2.
Preferably, the crusher A3 is single roll crusher.
Preferably, hot wind transfer passage L1 is equipped with the first deduster A4.
Preferably, being additionally provided with the second deduster A7 on cold wind transfer passage L2.
Preferably, the upstream of circulation exhaust fan A6 is arranged in the second deduster A7.
Preferably, cold wind transfer passage L2 separates branch cold wind transfer passage branch L201.Cold wind transfer passage branch
The head end of L201 is connected on cold wind transfer passage L2, the end of cold wind transfer passage branch L201 be connected to sintering machine A1 into
Air port.
Preferably, cold wind transfer passage branch L201 is connected to the downstream of circulation exhaust fan A6.
Preferably, cold wind transfer passage branch L201 is equipped with backheat blower A8.
Preferably, the system further include: cold sinter conveying device A9.Cold sinter conveying device A9 is arranged in discharge
The lower section of mouth 701.
In the present invention, which further includes material envelope cloth tube 6.The top of material envelope cloth tube 6 and feed bin 1 connect
It connects, material envelope cloth tube 6 protrudes into tower body 2.
Preferably, the length of material envelope cloth tube 6 is 30-70%, the preferably 40-65% of 2 height of tower body, more preferably
50-60%.
In the present invention, the air inlet discharge device 3 is hollow tubular structures, and air inlet 3 side wall of discharge device is shutter
Structure.
In the present invention, which further includes logistics air flow controller 8.Logistics air flow controller 8 is set
It sets in tower body 2.Logistics air flow controller 8 includes top plate 801 and support construction 802.Support construction 802 is arranged in tower bottom
Center on 203 and positioned at tower bottom 203.The top of support construction 802 is arranged in top plate 801.
Preferably, logistics air flow controller 8 is located at the underface of feed bin 1.
In the present invention, which further includes edge air flow regulator 9.Edge air flow regulator 9 is
Ring structure, edge air flow regulator 9 are arranged in tower wall 202.Preferably, edge air flow regulator 9 is arranged in tower
The middle and lower part of wall 202.
In the present invention, which further includes central gas stream regulating device 10.Central gas stream regulating device 10
For ring structure, central gas stream regulating device 10 is arranged in the exterior side wall of support construction 802.Preferably, central gas stream
The middle and upper part of support construction 802 is arranged in regulating device 10.
In the present invention, the tower bottom 203 of the vertical cooling furnace A0 is equipped with multiple air inlet discharge devices 3, and preferably 4-60 is a
Enter the wind discharge device 3, further preferably 6-40 air inlet discharge device 3, more preferably 18-36 air inlet discharge device 3.
Preferably, the circumferencial direction of tower bottom 203 is uniformly arranged in multiple air inlet discharge devices 3.
Preferably, multiple air inlet discharge devices 3 are being arranged to multi-turn, preferably 1-4 from the center of tower bottom 203 to edge
Circle, more preferably 2-3 circle.It is further preferred that air inlet discharge device 3 on 203 outer ring of tower bottom more than on 203 inner ring of tower bottom into
Wind discharge device 3, in tower bottom 203, from coil to coil successively decreases the number of air inlet discharge device 3 from outside to inside.Each air inlet discharge device 3
Lower section be respectively equipped with a discharge apparatus 4.
Preferably, the vertical cooling furnace A0 further includes auxiliary air inlet channel 12, auxiliary air inlet channel 12 is arranged in tower bottom
On 203 and run through tower bottom 203.Preferably, auxiliary air inlet channel 12 is polymorphic structure or polygonized structure or ring structure
Or circular cone porous structure.It is further preferred that auxiliary air inlet channel 12 is conical structure, the conical surface is shutter or porous plate.Auxiliary
Air intake passage 12 is slab construction, is connected to outside the lower section in auxiliary air inlet channel 12 and tower bottom 203, the top in auxiliary air inlet channel 12
Face is porous plate.Auxiliary air inlet channel 12 is ring structure, and the top of auxiliary air inlet channel 12 and side wall are shutter or more
Orifice plate.
In the present invention, the discharge apparatus 4 is mobile board-like discharge apparatus, apron feeder or electric vibrating feeder.
Preferably, mobile board-like discharge apparatus includes driving device 401, movable plate 402, bracket 403, push-pull rod 404.
Bracket 403 is arranged in the lower section of air inlet discharge device 3 and is located in discharge chute 7, and movable plate 402 is arranged on bracket 403,
Driving device 401 is arranged in the outside of discharge chute 7, and 404 one end of push-pull rod connects driving device 401, push-pull rod 404 it is another
End is connect across discharge chute 7 with movable plate 402.Preferably, mobile board-like discharge apparatus further includes baffle 405, baffle 405
The top of movable plate 402 is set and is fixedly connected with bracket 403.
Preferably, which further includes temperature element 11.The setting of temperature element 11 is in air inlet discharge device 3
Side wall on.Preferably, temperature element 11 is arranged on the side wall of air inlet discharge device 3 and extend into air inlet discharge device
3 inside.Preferably, temperature element 11 is thermocouple temperature sensor.
Preferably, the air inlet discharge device 3 is the column structure of polygon or round cross section.
Preferably, tower bottom 203 is equipped with multiple auxiliary air inlet channels 12, and preferably 1-20, more preferably 2-10 is a,
Further preferably 3-8.
Preferably, the tower bottom 203 is slab construction or cone bottom structure.
Preferably, the top plate 801 of the logistics air flow controller 8 is flat-tope structure or cone structure.Preferably,
The side of top plate 801 is equipped with shutter and goes out compression ring, and the bottom of top plate 801 is equipped with logistics air flow controller air inlet.
Preferably, edge air flow regulator 9 and/or central gas stream regulating device 10 are equipped with and wear stomata.Preferably
Being that the top and bottom of edge air flow regulator 9 and central gas stream regulating device 10 are equipped with wears stomata.Preferably, side
The top and bottom of portion's air flow regulator 9 and central gas stream regulating device 10 are in a circumferential direction from outside to inside separately
Stomata is worn equipped with multi-turn, preferably 1-10 circle wears stomata, and more preferably 2-4 circle wears stomata.
Preferably, which further includes control system K, control system K connection discharge apparatus 4, thermometric member
Part 11, heat sinter conveying device A2 and cold sinter conveying device A9, and control system K separately controls each
Enter the wind the driving device 401 of 3 lower section discharge apparatus 4 of discharge device.
Second of the embodiment provided according to the present invention provides a kind of sinter air-draft-type process of circulation cooling water.
A kind of sinter air-draft-type process of circulation cooling water or the method using system described in the first embodiment, this method
The following steps are included:
1) pass through heat sinter after crusher A3 is broken by the heat sinter of sintering machine A1 sintering acquisition and convey dress
Set the feed inlet that A2 is delivered to feed bin 1；Heat sinter is entered in tower body 2 by feed bin 1, material envelope cloth tube 6, falls in logistics gas
On flow control device 8, sinter is continuously flowed from the surrounding of logistics air flow controller 8 from top to bottom under the effect of gravity, into
Enter vertical cooling furnace A0 to be cooled down；
2) cooling wind enters discharge from the cold wind import 702 on 7 side wall of discharge chute under the action of recycling exhaust fan A6
In chute 7, then from air inlet discharge device 3, or from air inlet discharge device and auxiliary air inlet channel, into tower body 2；It is cooling
Sinter in wind and tower body 2 carries out heat exchange；Alternatively, cooling wind enters tower from the cold wind import 702 on 7 side wall of discharge chute
In body 2, the sinter in cooling wind and tower body 2 carries out heat exchange, and an air cooling wind passes through charge level of the sinter from sinter
Top enters in the cavity on 2 top of tower body, another part cooling wind pass through sinter from edge air flow regulator 9 and/or in
Motive flow modulation device 10 enters in the cavity on 2 top of tower body, forms high-temperature hot-air；Later, high-temperature hot-air is from air-draft-type hot wind
5 discharge of outlet；
3) high-temperature hot-air from air-draft-type hot-blast outlet 5 discharge after, by hot wind transfer passage L1 be delivered to waste heat boiler and
Electricity generation system A5 carries out UTILIZATION OF VESIDUAL HEAT IN；After cogeneration, temperature reduces high-temperature hot-air, forms low temperature hot wind；Low temperature hot wind
It is recycled in the cold wind import 702 for being delivered to discharge chute 7 by cold wind transfer passage L2；
4) sinter is discharged to discharge apparatus 4 from one or more air inlet discharge device 3 after vertical cooling furnace A0 is cooling
On, the sinter on discharge apparatus 4 falls into discharge chute 7, is discharged from the discharge gate 701 of discharge chute 7.
Preferably, being dusted when high-temperature hot-air is conveyed by hot wind transfer passage L1 by the first deduster A4；It is low
It is dusted when warm wind is conveyed by cold wind transfer passage L2 by the second deduster A7.
Preferably, a part of low temperature hot wind in cold wind transfer passage L2 is delivered to the cold wind import 702 of discharge chute 7
It is recycled, another part low temperature hot wind in cold wind transfer passage L2 is delivered to by cold wind transfer passage branch L201
Sintering machine A1 is sintered, and keeps air balance.
Embodiment 1
As shown in Figure 1, a kind of sinter air-draft-type circulating cooling system, the system include the vertical cooling furnace A0 of air-draft-type,
Waste heat boiler and electricity generation system A5, circulation exhaust fan A6, hot wind transfer passage L1, cold wind transfer passage L2.Wherein: air-draft-type is perpendicular
Formula cooling furnace A0 includes feed bin 1, tower body 2, air inlet discharge device 3, discharge apparatus 4, discharge chute 7.Tower body 2 include tower top 201,
Tower wall 202, tower bottom 203.The top of tower wall 202 is arranged in tower top 201.Tower bottom 203 is arranged in 202 bottom of tower wall.Feed bin 1 is arranged
Tower top 201 top and be connected to inside tower body 2.Air inlet discharge device 3 be arranged in tower bottom 203 lower section and in tower body 2
Portion's connection.The lower section of air inlet discharge device 3 is arranged in discharge apparatus 4.202 top of tower wall is equipped with air-draft-type hot-blast outlet 5.Discharge
The lower section of discharge apparatus 4 is arranged in chute 7.The top of discharge chute 7 is connect with the bottom of tower bottom 203, enters the wind 3 He of discharge device
In the space that discharge apparatus 4 is located at discharge chute 7 and tower bottom 203 forms.The bottom of discharge chute 7 is equipped with discharge gate 701, discharge
The side wall of chute 7 is equipped with cold wind import 702.Air-draft-type hot-blast outlet 5 passes through hot wind transfer passage L1 and waste heat boiler and hair
The air inlet of electric system A5 connects.The air outlet of waste heat boiler and electricity generation system A5 pass through cold wind transfer passage L2 and discharge chute
7 cold wind import 702 connects.Exhaust fan A6 is recycled to be arranged on cold wind transfer passage L2.
Embodiment 2
Embodiment 1 is repeated, only the system further include: sintering machine A1, heat sinter conveying device A2.Sintering machine A1's goes out
Material mouth is connected to the feed inlet of feed bin 1 by heat sinter conveying device A2.The system further include: crusher A3；Crusher A3
For single roll crusher；The discharge outlet of sintering machine A1 is arranged in crusher A3, and the discharge port of crusher A3 is defeated by heat sinter
The feed inlet for sending device A2 to be connected to feed bin 1.
Embodiment 3
Embodiment 2 is repeated, only hot wind transfer passage L1 is equipped with the first deduster A4.It is also set on cold wind transfer passage L2
There is the second deduster A7.The upstream of circulation exhaust fan A6 is arranged in second deduster A7.
Embodiment 4
Embodiment 3 is repeated, only cold wind transfer passage L2 separates branch cold wind transfer passage branch L201.Cold wind conveying is logical
The head end of road branch L201 is connected on cold wind transfer passage L2, and the end of cold wind transfer passage branch L201 is connected to sintering machine
The air inlet of A1.Cold wind transfer passage branch L201 is connected to the downstream of circulation exhaust fan A6.Cold wind transfer passage branch L201
It is equipped with backheat blower A8.
Embodiment 5
Embodiment 4 is repeated, only the system further include: cold sinter conveying device A9.Cold sinter conveying device A9 is set
It sets in the lower section of discharge gate 701.
Embodiment 6
Embodiment 5 is repeated, only the vertical cooling furnace A0 further includes material envelope cloth tube 6.The top of material envelope cloth tube 6 and material
Storehouse 1 connects, and material envelope cloth tube 6 protrudes into tower body 2；The length of material envelope cloth tube 6 is the 55% of 2 height of tower body.Vertical cooling furnace
Tower bottom is cone bottom structure.The air inlet discharge device 3 is hollow tubular structures, and air inlet 3 side wall of discharge device is shutter.
Discharge apparatus 4 is mobile board-like discharge apparatus.Mobile board-like discharge apparatus includes driving device 401, movable plate 402, bracket
403, push-pull rod 404.Bracket 403 is arranged in the lower section of air inlet discharge device 3 and is located in discharge chute 7, and movable plate 402 is set
It sets on bracket 403, the outside of discharge chute 7 is arranged in driving device 401, and 404 one end of push-pull rod connects driving device 401,
The other end of push-pull rod 404 passes through discharge chute 7 and connect with movable plate 402.Mobile board-like discharge apparatus further includes baffle 405,
Baffle 405 is arranged in the top of movable plate 402 and is fixedly connected with bracket 403.
Embodiment 7
As shown in fig. 6, repeating embodiment 5, only the vertical cooling furnace A0 further includes material envelope cloth tube 6.Material envelope cloth tube 6
Top connect with feed bin 1, material envelope cloth tube 6 protrude into tower body 2；The length of material envelope cloth tube 6 is the 55% of 2 height of tower body.
Vertical cooling furnace tower bottom is flat-bottom structure.The air inlet discharge device 3 is hollow tubular structures, and air inlet 3 side wall of discharge device is
Shutter.Discharge apparatus 4 is mobile board-like discharge apparatus.Mobile board-like discharge apparatus includes driving device 401, movable plate
402, bracket 403, push-pull rod 404.Bracket 403 is arranged in the lower section of air inlet discharge device 3 and is located in discharge chute 7, moves
Movable plate 402 is arranged on bracket 403, and the outside of discharge chute 7, the connection driving of 404 one end of push-pull rod is arranged in driving device 401
Device 401, the other end of push-pull rod 404 pass through discharge chute 7 and connect with movable plate 402.Moving board-like discharge apparatus further includes
Baffle 405, baffle 405 are arranged in the top of movable plate 402 and are fixedly connected with bracket 403.Vertical cooling furnace A0 is equipped with 6
Enter the wind discharge device 3.
Embodiment 8
As shown in fig. 7, repeating embodiment 5, only the vertical cooling furnace A0 further includes material envelope cloth tube 6.Material envelope cloth tube 6
Top connect with feed bin 1, material envelope cloth tube 6 protrude into tower body 2；The length of material envelope cloth tube 6 is the 55% of 2 height of tower body.
Vertical cooling furnace tower bottom is flat-bottom structure.The air inlet discharge device 3 is hollow tubular structures, and air inlet 3 side wall of discharge device is
Shutter.Discharge apparatus 4 is mobile board-like discharge apparatus.Mobile board-like discharge apparatus includes driving device 401, movable plate
402, bracket 403, push-pull rod 404.Bracket 403 is arranged in the lower section of air inlet discharge device 3 and is located in discharge chute 7, moves
Movable plate 402 is arranged on bracket 403, and the outside of discharge chute 7, the connection driving of 404 one end of push-pull rod is arranged in driving device 401
Device 401, the other end of push-pull rod 404 pass through discharge chute 7 and connect with movable plate 402.Moving board-like discharge apparatus further includes
Baffle 405, baffle 405 are arranged in the top of movable plate 402 and are fixedly connected with bracket 403.Vertical cooling furnace A0 is equipped with two
Circle air inlet discharge device 3.
Embodiment 9
As shown in figure 4, repeating embodiment 8, only the vertical cooling furnace A0 further includes logistics air flow controller 8.Logistics
Air flow controller 8 is arranged in tower body 2.Logistics air flow controller 8 includes top plate 801 and support construction 802.Support construction
802 are arranged in tower bottom 203 and are located at the center of tower bottom 203.The top of support construction 802 is arranged in top plate 801.Logistics
Air flow controller 8 is located at the underface of feed bin 1.8 top-side of logistics air flow controller is shutter.
Embodiment 10
As shown in figure 5, repeating embodiment 9, only the vertical cooling furnace A0 further includes edge air flow regulator 9 and center
Air flow regulator 10.Edge air flow regulator 9 is ring structure, and edge air flow regulator 9 is arranged in tower wall 202.
The middle and lower part of tower wall 202 is arranged in edge air flow regulator 9.Central gas stream regulating device 10 is ring structure, central gas stream
Regulating device 10 is arranged in the exterior side wall of support construction 802.Support construction 802 is arranged in central gas stream regulating device 10
Middle and upper part.
Embodiment 11
Embodiment 10 is repeated, only the vertical cooling furnace A0 further includes temperature element 11.The setting of temperature element 11 is being entered the wind
On the side wall of discharge device 3.Temperature element 11 is arranged on the side wall of air inlet discharge device 3 and extend into air inlet discharge device
3 inside.Temperature element 11 is thermocouple temperature sensor.
Embodiment 12
As shown in figs. 5 and 9, embodiment 13 is repeated, only the vertical cooling furnace A0 further includes auxiliary air inlet channel 12, auxiliary
Air intake passage 12 is arranged in tower bottom 203 and runs through tower bottom 203.Auxiliary air inlet channel 12 is conical structure, and the conical surface is blinds
Window or porous plate.
Embodiment 13
As shown in figure 16, embodiment 11 is repeated, only the top of edge air flow regulator 9 and central gas stream regulating device 10
Portion and bottom, which are equipped with, wears stomata.The top and bottom of edge air flow regulator 9 and central gas stream regulating device 10 are in circumference
2 circles are separately equipped on direction from outside to inside and wear stomata.
Embodiment 14
As shown in figures 8 and 11, embodiment 14 is repeated, only the vertical cooling furnace A0 further includes 12 auxiliary air inlet channels
12, auxiliary air inlet channel 12 is ring structure, and 12 top of auxiliary air inlet channel and side wall are shutter or porous plate；Auxiliary
The setting of air intake passage 12 is between two circle air inlet discharge devices.
Embodiment 15
Embodiment 12 is repeated, only the vertical cooling furnace A0 further includes control system K, control system K connection discharge apparatus
4, temperature element 11, heat sinter conveying device A2 and cold sinter conveying device A9, and control system K is separately controlled
Make the driving device 401 of each air inlet 3 lower section discharge apparatus 4 of discharge device.
Use embodiment 1
A kind of sinter air-draft-type process of circulation cooling water, method includes the following steps:
1) pass through heat sinter after crusher A3 is broken by the heat sinter of sintering machine A1 sintering acquisition and convey dress
Set the feed inlet that A2 is delivered to feed bin 1；Heat sinter is entered in tower body 2 by feed bin 1, material envelope cloth tube 6, falls in logistics gas
On flow control device 8, sinter is continuously flowed from the surrounding of logistics air flow controller 8 from top to bottom under the effect of gravity, into
Enter vertical cooling furnace A0 to be cooled down；
2) cooling wind enters discharge from the cold wind import 702 on 7 side wall of discharge chute under the action of recycling exhaust fan A6
In chute 7, then from air inlet discharge device 3, or from air inlet discharge device 3 and auxiliary air inlet channel 12, into tower body 2；
Sinter in cooling wind and tower body 2 carries out heat exchange；Alternatively, cooling wind from the cold wind import 702 on 7 side wall of discharge chute into
Enter in tower body 2, the sinter in cooling wind and tower body 2 carries out heat exchange, and an air cooling wind passes through sinter from sinter
Enter above charge level in the cavity on 2 top of tower body, another part cooling wind pass through sinter from edge air flow regulator 9 and/
Or central gas stream regulating device 10 enters in the cavity on 2 top of tower body, forms high-temperature hot-air；Later, high-temperature hot-air is from air-draft-type
Hot-blast outlet 5 is discharged；
3) high-temperature hot-air from air-draft-type hot-blast outlet 5 discharge after, by hot wind transfer passage L1 be delivered to waste heat boiler and
Electricity generation system A5 carries out UTILIZATION OF VESIDUAL HEAT IN；After cogeneration, temperature reduces high-temperature hot-air, forms low temperature hot wind；Low temperature hot wind
It is recycled in the cold wind import 702 for being delivered to discharge chute 7 by cold wind transfer passage L2；
4) sinter is discharged on discharge apparatus 4, discharge after vertical cooling furnace A0 is cooling from 6 air inlet discharge devices 3
Sinter in equipment 4 falls into discharge chute 7, is discharged from the discharge gate 701 of discharge chute 7.
Use embodiment 2
Embodiment 1 is reused, passes through the first deduster A4 when only high-temperature hot-air is conveyed by hot wind transfer passage L1
It is dusted；It is dusted when low temperature hot wind is conveyed by cold wind transfer passage L2 by the second deduster A7；Cold wind conveying is logical
The cold wind import 702 that a part of low temperature hot wind in road L2 is delivered to discharge chute 7 is recycled, cold wind transfer passage L2
Interior another part low temperature hot wind is delivered to sintering machine A1 by cold wind transfer passage branch L201 and is sintered, and keeps air quantity flat
Weighing apparatus.
Claims (13)
1. a kind of sinter air-draft-type circulating cooling system, the system include the vertical cooling furnace of air-draft-type (A0), waste heat boiler and
Electricity generation system (A5), circulation exhaust fan (A6), hot wind transfer passage (L1), cold wind transfer passage (L2)；Wherein: air-draft-type is vertical
Cooling furnace (A0) includes feed bin (1), tower body (2), air inlet discharge device (3), discharge apparatus (4), discharge chute (7)；Tower body (2)
Including tower top (201), tower wall (202), tower bottom (203)；Tower top (201) is arranged at the top of tower wall (202)；Tower bottom (203) is set
It sets in tower wall (202) bottom；Feed bin (1) is arranged the top in tower top (201) and is connected to inside tower body (2)；Enter the wind discharge dress
(3) setting is set in the lower section of tower bottom (203) and is connected to inside tower body (2)；Discharge apparatus (4) setting is in air inlet discharge device
(3) lower section；Tower top (201) or tower wall (202) top are equipped with air-draft-type hot-blast outlet (5)；Discharge chute (7) is arranged in discharge
The lower section of equipment (4)；The top of discharge chute (7) is connect with the bottom of tower bottom (203), enters the wind discharge device (3) and discharge is set
Standby (4) are located in the space of discharge chute (7) and tower bottom (203) composition；The bottom of discharge chute (7) is equipped with discharge gate (701),
The side wall of discharge chute (7) is equipped with cold wind import (702)；Air-draft-type hot-blast outlet (5) by hot wind transfer passage (L1) with
Waste heat boiler and the connection of the air inlet of electricity generation system (A5)；Waste heat boiler and the air outlet of electricity generation system (A5) are conveyed by cold wind
Channel (L2) is connect with the cold wind import (702) of discharge chute (7)；Exhaust fan (A6) is recycled to be arranged at cold wind transfer passage (L2)
On.
2. system according to claim 1, it is characterised in that: the system further include: sintering machine (A1), heat sinter conveying
Device (A2)；The discharge port of sintering machine (A1) is connected to the feed inlet of feed bin (1) by heat sinter conveying device (A2)；It is preferred that
Be the system further include: crusher (A3), crusher (A3) be arranged sintering machine (A1) discharge outlet, crusher (A3)
Discharge port is connected to the feed inlet of feed bin (1) by heat sinter conveying device (A2)；Preferably, the crusher (A3) is
Single roll crusher；And/or
Hot wind transfer passage (L1) is equipped with the first deduster (A4)；And/or
The second deduster (A7) is additionally provided on cold wind transfer passage (L2)；Preferably, the second deduster (A7) setting is recycling
The upstream of exhaust fan (A6).
3. system according to claim 1 or 2, it is characterised in that: cold wind transfer passage (L2) separates the conveying of branch cold wind
Passage branches (L201), the head end of cold wind transfer passage branch (L201) are connected on cold wind transfer passage (L2), cold wind conveying
The end of passage branches (L201) is connected to the air inlet of sintering machine (A1)；Preferably, cold wind transfer passage branch (L201)
It is connected to the downstream of circulation exhaust fan (A6)；Preferably, cold wind transfer passage branch (L201) is equipped with backheat blower (A8)；
And/or
The system further include: cold sinter conveying device (A9)；Cold sinter conveying device (A9) is arranged in discharge gate (701)
Lower section.
4. system according to any one of claim 1-3, it is characterised in that: the vertical cooling furnace (A0) further includes material envelope
Cloth tube (6)；The top of material envelope cloth tube (6) is connect with feed bin (1), and material envelope cloth tube (6) protrudes into tower body (2)；Preferably
It is that the length of material envelope cloth tube (6) is the 30-70%, preferably 40-65%, more preferably 50-60% of tower body (2) height；
And/or
The vertical cooling furnace (A0) further includes logistics air flow controller (8)；Logistics air flow controller (8) is arranged in tower body
(2) in, logistics air flow controller (8) includes top plate (801) and support construction (802), and support construction (802) is arranged in tower bottom
(203) center on and positioned at tower bottom (203), top plate (801) are arranged in the top of support construction (802)；Preferably,
Logistics air flow controller (8) is located at the underface of feed bin (1).
5. system described in any one of -4 according to claim 1, it is characterised in that: the vertical cooling furnace (A0) further includes edge
Air flow regulator (9)；Edge air flow regulator (9) is ring structure, and edge air flow regulator (9) is arranged in tower wall
(202) on；Preferably, middle and lower part of edge air flow regulator (9) setting in tower wall (202)；And/or
The vertical cooling furnace (A0) further includes central gas stream regulating device (10)；Central gas stream regulating device (10) is ring junction
Structure, central gas stream regulating device (10) are arranged in the exterior side wall of support construction (802)；Preferably, central gas stream is adjusted
Device (10) is arranged in the middle and upper part of support construction (802).
6. system according to any one of claims 1-5, it is characterised in that: the tower bottom of the vertical cooling furnace (A0)
(203) be equipped with multiple air inlet discharge devices (3), preferably 4-60 air inlet discharge device (3), further preferably 6-40 it is a into
Wind discharge device (3), more preferably 18-36 air inlet discharge device (3)；Preferably, multiple air inlet discharge devices (3) are uniform
Setting tower bottom (203) circumferencial direction；Preferably, multiple air inlets discharge device (3) the center from tower bottom (203) to
Edge is arranged to multi-turn, preferably 1-4 circle, more preferably 2-3 circle；It is further preferred that the air inlet discharge on tower bottom (203) outer ring
Device (3) enters the wind the number of discharge device (3) in tower bottom (203) more than the air inlet discharge device (3) on tower bottom (203) inner ring
From coil to coil successively decreases from outside to inside；The lower section of each air inlet discharge device (3) is respectively equipped with a discharge apparatus (4)；And/or
The vertical cooling furnace (A0) further includes auxiliary air inlet channel (12), and auxiliary air inlet channel (12) are arranged on tower bottom (203)
And run through tower bottom (203)；Preferably, auxiliary air inlet channel (12) be polymorphic structure or polygonized structure or ring structure or
Circular cone porous structure；It is further preferred that auxiliary air inlet channel (12) are conical structure, the conical surface is shutter or porous plate；Auxiliary
Air intake passage (12) is slab construction, is connected to outside the lower section of auxiliary air inlet channel (12) and tower bottom (203), auxiliary air inlet channel
(12) top surface is porous plate；Auxiliary air inlet channel (12) is ring structure, and at the top of auxiliary air inlet channel (12) and side wall is
Shutter or porous plate.
7. system according to claim 1 to 6, it is characterised in that: the discharge apparatus (4) is that movement is board-like
Discharge apparatus, apron feeder or electric vibrating feeder；Preferably, mobile board-like discharge apparatus includes driving device (401), moves
Movable plate (402), bracket (403), push-pull rod (404), bracket (403) setting are being entered the wind the lower section of discharge device (3) and are being located at
In discharge chute (7), movable plate (402) is arranged on bracket (403), and driving device (401) is arranged in the outer of discharge chute (7)
Side, push-pull rod (404) one end connect driving device (401), and the other end of push-pull rod (404) passes through discharge chute (7) and mobile
Plate (402) connection；Preferably, mobile board-like discharge apparatus further includes baffle (405), baffle (405) is arranged in movable plate
(402) it top and is fixedly connected with bracket (403).
8. system described in any one of -7 according to claim 1, it is characterised in that: the vertical cooling furnace (A0) further includes thermometric
Element (11)；Temperature element (11) setting is on the side wall of air inlet discharge device (3)；Preferably temperature element (11) setting exists
Enter the wind on the side wall of discharge device (3) and extend into the inside of air inlet discharge device (3)；Preferably, temperature element (11)
For thermocouple temperature sensor；And/or
Air inlet discharge device (3) is the column structure of polygon or round cross section；Entering the wind discharge device (3) is hollow pipe
Shape structure；Preferably, air inlet discharge device (3) side wall is shutter；And/or the tower bottom (203) is plate
Structure or cone bottom structure；And/or
Tower bottom (203) is equipped with multiple auxiliary air inlet channels (12), preferably 1-20, more preferably 2-10, further excellent
It is selected as 3-8.
9. the vertical cooling furnace according to any one of claim 4-8, it is characterised in that: the logistics air flow controller
(8) top plate (801) is flat-tope structure or cone structure；Preferably, the side of top plate (801) goes out compression ring equipped with shutter,
The bottom of top plate (801) is equipped with logistics air flow controller air inlet；And/or
Edge air flow regulator (9) and/or central gas stream regulating device (10), which are equipped with, wears stomata；Preferably, edge gas
It is equipped at the top and bottom of flow modulation device (9) and central gas stream regulating device (10) and wears stomata；Preferably, edge air-flow
The top and bottom of regulating device (9) and central gas stream regulating device (10) are separately set from outside to inside in a circumferential direction
There is multi-turn to wear stomata, preferably 1-10 circle wears stomata, and more preferably 2-4 circle wears stomata.
10. vertical cooling furnace according to claim 1 to 9, it is characterised in that: first deduster (A4)
For gravitational precipitator, board-like gravitational precipitator is preferably impacted；And/or second deduster (A7) be multi-tube dust cleaner；And/or
Heat sinter conveying device (A2) is feeding cart or chain scraper conveyor；And/or cold sinter conveying device (A9) is upper
Trolley or chain scraper conveyor.
11. vertical cooling furnace according to claim 1 to 10, it is characterised in that: the vertical cooling furnace (A0) is also
Including control system (K), control system (K) connects discharge apparatus (4), temperature element (11), heat sinter conveying device (A2)
With cold sinter conveying device (A9), and control system (K) separately control each air inlet discharge device (3) below
The driving device (401) of discharge apparatus (4).
12. a kind of sinter air-draft-type process of circulation cooling water or the method using system described in any one of claim 1-10,
Method includes the following steps:
1) pass through heat sinter after crusher (A3) is broken by the heat sinter of sintering machine (A1) sintering acquisition and convey dress
Set the feed inlet that (A2) is delivered to feed bin (1)；Heat sinter is entered in tower body (2) by feed bin (1), material envelope cloth tube (6),
Fall on logistics air flow controller (8), sinter under the effect of gravity from the surrounding of logistics air flow controller (8) from upper and
Lower continuous flowing, is cooled down into vertical cooling furnace (A0)；
2) cooling wind enters row from the cold wind import (702) on discharge chute (7) side wall under the action of recycling exhaust fan (A6)
Expect chute (7) in, then from air inlet discharge device (3), or from air inlet discharge device (3) and auxiliary air inlet channel (12), into
Enter in tower body (2)；Sinter in cooling wind and tower body (2) carries out heat exchange；Alternatively, cooling wind is from discharge chute (7) side wall
On cold wind import (702) enter in tower body (2), the sinter in cooling wind and tower body (2) carries out heat exchange, an air cooling
Wind passes through sinter and enters in the cavity on tower body (2) top above the charge level of sinter, and another part cooling wind passes through sintering
Mine enters in the cavity on tower body (2) top from edge air flow regulator (9) and/or central gas stream regulating device (10), is formed
High-temperature hot-air；Later, high-temperature hot-air is discharged from air-draft-type hot-blast outlet (5)；
3) high-temperature hot-air from air-draft-type hot-blast outlet (5) discharge after, by hot wind transfer passage (L1) be delivered to waste heat boiler and
Electricity generation system (A5) carries out UTILIZATION OF VESIDUAL HEAT IN；After cogeneration, temperature reduces high-temperature hot-air, forms low temperature hot wind；Low Temperature Thermal
Wind is recycled in the cold wind import (702) for being delivered to discharge chute (7) by cold wind transfer passage (L2)；
4) sinter is discharged to discharge apparatus from one or more air inlet discharge device (3) after vertical cooling furnace (A0) is cooling
(4) on, the sinter on discharge apparatus (4) falls into discharge chute (7), is discharged from the discharge gate (701) of discharge chute (7).
13. according to the method for claim 12, it is characterised in that: when high-temperature hot-air is conveyed by hot wind transfer passage (L1)
It is dusted by the first deduster (A4)；Pass through the second deduster when low temperature hot wind is conveyed by cold wind transfer passage (L2)
(A7) it is dusted；And/or
The cold wind import (702) that a part of low temperature hot wind in cold wind transfer passage (L2) is delivered to discharge chute (7) is followed
Ring utilizes, and another part low temperature hot wind in cold wind transfer passage (L2) is delivered to burning by cold wind transfer passage branch (L201)
Knot machine (A1) is sintered, and keeps air balance.
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| CN201710756781.0A CN109425231B (en) | 2017-08-29 | 2017-08-29 | Air draft type circulating cooling system and process for sinter |
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| CN201710756781.0A CN109425231B (en) | 2017-08-29 | 2017-08-29 | Air draft type circulating cooling system and process for sinter |
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| CN110195983A (en) * | 2019-04-30 | 2019-09-03 | 常州捷佳创智能装备有限公司 | A kind of cooling structure |
| CN111692886A (en) * | 2019-03-14 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Vertical rectangular cooling furnace for sintered ore |
| CN113758235A (en) * | 2020-06-04 | 2021-12-07 | 上海梅山钢铁股份有限公司 | Sintering vertical cooling furnace with uniformly distributed internal furnace burden |
| CN114279210A (en) * | 2022-01-07 | 2022-04-05 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel automatic control method for air supply of vertical cooling kiln |
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| CN109654893A (en) * | 2017-10-11 | 2019-04-19 | 中冶长天国际工程有限责任公司 | A kind of vertical cooling furnace of sinter air-draft-type and sinter cooling means |
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| CN111692886B (en) * | 2019-03-14 | 2022-05-10 | 上海梅山钢铁股份有限公司 | Vertical rectangular cooling furnace for sintered ore |
| CN110195983A (en) * | 2019-04-30 | 2019-09-03 | 常州捷佳创智能装备有限公司 | A kind of cooling structure |
| CN113758235A (en) * | 2020-06-04 | 2021-12-07 | 上海梅山钢铁股份有限公司 | Sintering vertical cooling furnace with uniformly distributed internal furnace burden |
| CN114279210A (en) * | 2022-01-07 | 2022-04-05 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel automatic control method for air supply of vertical cooling kiln |
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