CN108955276A - Vertical sinter cooler and sinter cooling means with revolving top - Google Patents
Vertical sinter cooler and sinter cooling means with revolving top Download PDFInfo
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- CN108955276A CN108955276A CN201710367694.6A CN201710367694A CN108955276A CN 108955276 A CN108955276 A CN 108955276A CN 201710367694 A CN201710367694 A CN 201710367694A CN 108955276 A CN108955276 A CN 108955276A
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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
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0286—Cooling in a vertical, e.g. annular, shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
Vertical cooling machine with revolving top, comprising: revolving top (1), umbrella chute (2), vertical chute (3), the tower body, cooling section (6) and the tower body that are made of tower body top cover (4) and tower body side wall (5) top cover or side wall upper part setting hot-blast outlet (10)；Wherein: umbrella chute (2) includes the overall section (201) on top and the separated section (202) of lower part, the upper end of overall section (201) is connect with revolving top (1), each branch vertical chute (3) connection corresponding with lower section of section (202) is separated, the gas compartment between the top of cooling section (6), vertical chute (3) and tower body forms hot-air channel (7)；The lower section of cooling section (6) is equipped with uniform air intake device (8)；Lower section of multiple discharge cone bucket (9) settings in uniform air intake device (8)；Discharge apparatus is equipped with the lower section of discharge cone bucket (9).The configuration of the present invention is simple, sealed reliable, waste heat recovery efficiency are high.
Description
Technical field
The present invention relates to sinter cooler and sinter cooling means with revolving top, belong to ironmaking field and
Environment protection field.
Background technique
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.But it is comprehensively compared, the cold UTILIZATION OF VESIDUAL HEAT IN colder than ring of disk
Rate is more preferable (all sintering mine sensible heats are recycled), therefore disk cold is very widely used in overseas market, and this patent is also
It is illustrated around disk cold technology.
Disk cold technology develops since the seventies, most starts cold for transverse type disk, i.e., cooling wind is out of disk cold
Circumferential outer ring flowing, is horizontally through the bed of material to be cooled and exchanges heat with it, and the cooling wind after having exchanged heat is directly outer to drain into atmosphere.It does so
Both uneconomical or not environmentally, optimize by continuous research for many years, newest disk cold technology is Mitsubishi Hitachi in
It contains " air-draft-type longitudinal direction disk refrigeration technique " that steel proposes.This technology uses exhausting, and cooling wind is pumped into material bottom to be cooled from atmosphere
Portion, then up longitudinally through the bed of material, finally from bed of material top, blowout enters subsequent handling.The program and the scheme phase most started
Than having had very big optimization and progress, having described in detail below for the program.
JP2008232519A (Hitachi of Mitsubishi and middle Sheng steel, call D1 in the following text) discloses air-draft-type longitudinal direction disk refrigeration technique, referring to
Fig. 1 therein: heat sinter enters feed chute from sintering machine tail clan, the stock column of certain altitude is piled into chute, in this way
On the one hand it is to play the role of uniform blanking, is on the other hand to play material envelope to prevent feed inlet string wind action.Mineral aggregate continue to
It is lower to enter in disk cold cabinet after hood, push the stock column at certain altitude.At the same time, by the negative pressure shadow of exhaust fan
It rings, the air near disk cold can be inhaled into stock column via blinds air-intake device, passed through stock column from the bottom up and exchanged heat therewith, change
Air after heat is pierced by from stock column top surface into air outlet, is sent to gravitational precipitator and waste heat boiler, finally by taking out
By outlet after blower.Being formed cross section at disk cold lower tray by air sintering feed after cooling is 37 degree of stocking angle triangles
The annular accumulation area of shape, when being turned to discharge zone, sintering feed is scraped by scraper plate device, and completion cooling process enters next
A process links.
Hitachi of Mitsubishi and it is middle contain steel " air-draft-type longitudinal direction disk refrigeration technique " although having marked improvement compared with routine techniques, but still
So there is following five point defect:
1) device whole height requires excessively high: since " air-draft-type longitudinal direction disk refrigeration technique " takes exhausting mode, so necessary
Material envelope, that is, the stock column accumulated in feed chute in Fig. 1 of D1 are set in gating location, material envelope height is with disk cold case
1.2~1.5 times of internal stock column height are standard.The height of whole series of discs device for cooling is thus virtually increased, is pacified in construction
When dress or just needs to rise whole sintering machine absolute altitude or just need down to dig the civil engineering plane of disk cold.Regardless of choosing
Which kind of mode is selected, a high cost of investment can be all caused, it is very not cost-effective in economic indicator；
2) distinguished and admirable open circuit circulation causes utilization rate of waste heat low and pollutes environment: due to the wind of " air-draft-type longitudinal direction disk refrigeration technique "
Stream is open circuit circulation, and the direct outlet of air come out from waste heat boiler does not recycle, and causes also more than 100 degree in this way
Air sensible is wasted, and contains a large amount of little particle dust in the air of outlet, causes a degree of particle for atmosphere
Object pollution；
3) material serious wear at feed inlet: since " air-draft-type longitudinal direction disk refrigeration technique " setting material seals at feed chute,
Therefore one section of frictional distance is had between charge level upper layer in material envelope lower part and disk cold cabinet.Sintering feed is expected in high temperature and top at this time
Under the double-deck bad working environments that column squeezes, it is easy to dusting when being rubbed and becomes broken, to reduce the yield rate of sintering machine；
4) environmental pollution is more serious: the negative pressure exhausting technology taken due to " air-draft-type longitudinal direction disk refrigeration technique ", thus it
Not set sealing closure assembly at lower box pallet.In this way when sinter is scraped by scraper device, it be easy to cause a large amount of subtle
Particle and dust splash.And once exhaust fan breaks down maintenance, the material dust pushed around disk cold can all enter big
Gas, causes the operating environment by machine and its bad influence.
5) the waste heat boiler thermal efficiency is not up to highest: since " air-draft-type longitudinal direction disk refrigeration technique " be not the air for being pierced by the bed of material
It is precisely classified according to wind-warm syndrome, but is all mixed into waste heat boiler, it, will certainly in this way when low-temperature zone outlet wind-warm syndrome is too low
The air themperature into waste heat boiler is dragged down, to reduce the thermal efficiency value of waste heat boiler.
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, the limitation that traditional ring type is cooling or belt is cooling is broken through, a kind of sintering mine sensible heat high efficiente callback is developed
Technique and technical equipment have been the energy-saving and environment-friendly only ways of sintering industry.
Summary of the invention
Therefore, by proposing a kind of based on small wind to a large amount of research work of domestic and international sintering mine sensible heat recycling aspect
Slow cooling sinter adverse current deep bed sintering cooling technique.The technique has sinter cooling velocity slow, and ton consumption cooling air quantity is small, exhausted air quantity
Relatively small, exhaust gas temperature is high, and boiler thermal efficiency is high, and cooling exhaust gas can all be utilized by boiler, the sintering mine sensible heat rate of recovery one
As up to 70% or so cooling feature.According to sinter adverse current deep bed sintering cooling technique, a kind of vertical cooling machine has been invented, it should
Vertical cooling machine has cloth uniform, and discharge is uniform, the uniform feature of cloth wind, therefore the cooler good cooling results, hot blast temperature
Height meets the requirement of sinter adverse current deep bed sintering cooling technique.
The invention vertical cooling machine compared with former ring cold machine, do not leak out by simple structure and reliable sealing, plant maintenance amount
Small, waste heat recovery efficiency is high.
According to the invention ,the aim of the invention is to provide a kind of vertical cooling machine for cooling down sinter, it is tower structure, because
This, also referred to as tower cooler.
According to the present invention, a kind of vertical cooling machine with revolving top is provided, which includes: rotation cloth
Device, umbrella chute, vertical chute, the tower body, cooling section and the tower body that are made of tower body top cover and tower body side wall top cover or side wall
The hot-blast outlet of top setting；Wherein: umbrella chute includes the overall section on top and the separated section with multiple branches of lower part,
The upper end of overall section is connect with revolving top, separates each branch vertical chute connection corresponding with lower section of section,
The top of tower body side wall is arranged in tower body top cover, and vertical chute is arranged on tower body top cover, and the lower end of vertical chute is protruded into
In tower body, the branches end for separating section of the upper end and umbrella chute connect, the top of umbrella chute is arranged in revolving top,
The lower part of tower body is arranged in cooling section；
The gas compartment (no material space) between the top of cooling section, vertical chute and tower body forms hot-air channel；
The lower section of cooling section is equipped with uniform air intake device；
The lower section of uniform air intake device is arranged in multiple discharge cone buckets；With
The lower section of discharge cone bucket is equipped with discharge apparatus.
Preferably, in tower body, the front end of hot-blast outlet be equipped with radiation heat regenerator.Preferably, recuperation of heat is radiated
Device uses fin type heat exchanger or tubulation type heat exchanger.
Preferably, discharge apparatus is oscillating feeder or plate belt feeder.
Preferably, the lower section of oscillating feeder end is equipped with cold sinter conveying device.
Preferably, discharge apparatus is plate belt feeder, and discharge chute is equipped with below the discharge port of plate belt feeder or is unloaded
The lower section of hopper, discharge chute or dump skip is equipped with cold sinter conveying device.
It is preferred that the end of discharge cone bucket is equipped with gate valve.
It is preferred that the lower part (preferably along circumferencial direction) of cooling section is equipped with temperature probe；Preferably, the temperature probe
For thermocouple temperature sensor.
It is preferred that uniform air intake device includes outer ring blast pipe, multiple air duct branch pipes and the inner ring air inlet of annular or " C " shape
Road, in which: the outer periphery of tower wall is arranged in the outer ring blast pipe of annular or " C " shape, and inner ring air inlet duct is arranged in tower body bottom,
One end connection outer ring blast pipe of each air duct branch pipe connects inner ring air inlet duct with the other end.Preferably, inner ring air inlet duct
Side wall or side be shutter.
It is preferred that the quantity of the branch of the separated section of umbrella chute and the quantity of corresponding vertical chute are 3-12, it is excellent
It is selected as 4-10, more preferably 6-8.
It is preferred that multiple discharge cone buckets are presented annular spread in uniform air intake device lower end or circumferentially equably divide
Cloth.
Generally, the number of discharge cone bucket is 4-12, preferably 6-10,6-8.
Generally, the quantity of air duct branch pipe is at least one in uniform air intake device, preferably 2-12, preferably 3-10, more
It is preferred that 4-8, more preferable 6-8.
It is preferred that the top of inner ring air inlet duct is sealing and lower end is opening.
Generally, uniform air intake device includes 1 or 2 inner ring air inlet duct；Preferably, when there is 2 inner ring air inlet ducts, it
Upper and lower setting each other.
It is preferred that discharge apparatus is the double-deck oscillating feeder；The double-deck oscillating feeder include body rack, upper layer vibra shoot,
Lower layer's vibra shoot, vibrator；Upper layer vibra shoot and lower layer's vibra shoot are arranged on body rack, and upper layer vibra shoot is located at lower layer's vibration
The top of dynamic slot, upper layer vibra shoot and lower layer's vibra shoot are connect with vibrator respectively.Preferably, upper layer vibra shoot and/or under
Layer vibra shoot is equipped with regulating device, and regulating device adjusts the bottom plate inclination angle of lower layer's vibra shoot.
It is preferred that vibrator includes upper layer vibrator and lower layer's vibrator, upper layer vibrator is connect with upper layer vibra shoot, lower layer
Vibrator is connect with lower layer's vibra shoot.Preferably, upper layer vibra shoot and lower layer's vibra shoot are arranged by spring in body rack
On.
It is preferred that the vertical cooling machine further includes control system, control system and uniform air intake device, cold sinter conveying are filled
It sets, the connection of gate valve, temperature probe, discharge apparatus, and controls uniform air intake device, cold sinter conveying device, gate valve, survey
The operation of temperature probe, discharge apparatus.
According to the present invention, a kind of sinter cooling means or next cold using a kind of above-described vertical cooling machine is also provided
But the method for sinter, method includes the following steps:
(1) sinter enters in the revolving top of vertical cooling machine, under gravity continuous flowing from top to bottom,
Enter vertical chute via umbrella chute, is then deposited in the tower body of cooler；
(2) uniform air intake device conveying cooling gas (such as air) of vertical cooling machine enters tower by inner ring air inlet duct
In vivo, cooling gas passes through from bottom to top is deposited in the intracorporal sinter bed of material of tower, and carries out countercurrent heat exchange, heat with sinter
Cooling gas temperature gradually rises after exchange, and sinter charge level is discharged in vertical cooling machine tower, forms high-temperature hot-air, high warm
Wind is discharged through hot-air channel from hot-blast outlet；Preferably, high-temperature hot-air is transported to afterheat utilizing system (such as cogeneration
System) in；
(3) be deposited in the intracorporal sinter of tower of cooler and cooling gas from bottom to top carry out countercurrent heat exchange and by
It is cooling, it enters in the discharge cone bucket of vertical cooling machine lower part, is then discharged by oscillating feeder or is passed through by plate belt feeder
Discharge chute or dump skip are discharged in cold sinter conveying device；With
(4) radiant heat energy of radiation heat regenerator recycling sinter generates high-temperature vapor, and vapor passes through recovery tubes
Road enters in afterheat generating system.
It is preferred that control system controls uniform air intake device, cold sinter conveying dress according to temperature probe temperature detected
It sets, the operation of gate valve, temperature probe, discharge apparatus.
It is preferred that with each, discharge cone bucket is corresponding that temperature probe is arranged above it, according to each temperature probe institute
The temperature of detection, control system control the operation of corresponding discharge apparatus.
The equipment also has self feed back discharge regulatory function.The sinter temperature of corresponding region is detected by temperature probe,
After the sinter temperature of some circumferential position of detection reaches cooling effect, the corresponding discharge cone in the region is just normally opened
Discharge apparatus below struggling against, carries out normal discharge, sets conversely, then accordingly decreasing the discharge velocity of discharge apparatus or closing discharge
It is standby, it allows the sinter in the region to cool down a period of time again, after sinter temperature reaches cooling effect, then carries out normal discharge.
It is also possible to carry out the adjusting of discharge velocity by the insertion depth for adjusting gate valve.
In the present invention, it is however generally that, the vertical cooling machine is mainly by revolving top, umbrella chute, vertical chute, tower
Body, uniform air intake device, cooling section, discharge cone bucket, discharge apparatus, hot-blast outlet composition.
Revolving top is located at the top of vertical cooling machine, can enter along tower body central axis rotary motion, heat sinter
After revolving top, flowed out under the effect of gravity from revolving top chute, into umbrella chute, during charging,
Revolving top rotary motion enables material to be evenly distributed on umbrella chute.
Umbrella chute is a umbrella shape chute, and upper end is disposed with revolving top, and lower end connects vertical chute, umbrella chute point
For upper and lower two parts, overall section and separated section.Overall section is integral umbrella chute, separates section and is located at below overall section, is
One circumferentially equally distributed several segments umbrella chute separates and keeps apart between the chute of section.It is planted from revolving top
Sinter is evenly distributed on umbrella chute, continues to flow downwardly through overall section and separated section, enters slipping vertically for lower section
Slot.
For one, circumferentially several equally distributed Vertical Channels, each channel correspond umbrella chute point to vertical chute
Open the umbrella chute of section, vertical chute is divide into upper part and lower part by vertical cooling machine top cover, wherein the intracorporal vertical chute of tower it
Between form hot-air channel, the hot wind between vertical chute can be flowed out on the outside of vertical chute from hot-air channel between tower body
Hot-blast outlet discharge is flowed into without material space, then from no material space.The sinter flowed out from umbrella chute is flowed into vertical chute
It is interior, then flowed downward out from vertical chute, it enters in cooling section, forms uniform annular material heap in cooling section.
Cooling section is mainly a shell structure, cooling section is entered by the sinter that vertical chute flows down, in cooling
In section, the cooling wind blown up from uniform air intake device carries out heat exchange with sinter in cooling section, and sinter is cooling, changes
Cooling wind after heat becomes hot wind, and hot wind can be discharged from the free charge level on cooling section top, enters no material space.After cooling
Sinter enter the uniform air intake device of cooling section lower end, flowed out from the material channel of uniform air intake device.
Uniform air intake device is mainly made of outer ring blast pipe, inner ring air inlet duct, multiple air duct branch pipes, major function be by
Cooling wind is blown into the cooling section above it, cools down to sinter.Wherein, outer ring blast pipe is a circulating line, air blast
The pressure cooling wind that machine conveying comes enters outer ring blast pipe, and cooling wind is equably conveyed to air duct branch by outer ring blast pipe
Pipe；Inner ring air inlet duct be a circulating line, inner ring air inlet duct both side plate be venetian blind type structure, inner ring air inlet duct top seal,
Cooling wind is introduced into inner ring air inlet duct by lower ending opening by air duct branch pipe from outer ring blast pipe, cold in inner ring air inlet duct
But wind can be equably upwardly into the sinter in cooling section from inner ring air inlet duct two sides shutter, to sinter
It is cooled down.Wherein outer ring blast pipe, inner ring air inlet duct, constitute material channel between the branch pipe of air duct, what cooling section flow down
Sinter can flow downwardly into discharge cone bucket by material channel.
Discharge cone bucket is located at uniform discharge air blast section lower end, it is evenly distributed in the circumferential direction several, generally 4-8,
Its shape is up big and down small abnormity or circle or pyramidal structure.Sinter after cooling by gravity flows into discharge cone
In bucket.Each discharge cone bucket lower end connects a discharge apparatus, can control the discharge of each discharge cone bucket by discharge apparatus
Speed.
In the present invention, discharge apparatus be oscillating feeder or plate belt feeder, using oscillating feeder or it is board-like give mine
Machine carries out discharge, has discharge uniform, and Maintenance and Repair are convenient, the small advantage of maintenance workload.
Hot-blast outlet is located on vertical cooling machine top tower body side wall, is connected to no material space inside, in no material space
Hot wind is discharged by hot-blast outlet, into subsequent afterheat generating system.
Preferably, gate valve is arranged in discharge cone bucket lower end, can end material after gate valve is inserted into discharge cone bucket, no
It flows downward.During normal production, gate valve is opened, and when the corresponding discharge apparatus below discharge cone bucket needs to overhaul, will be inserted
Plate valve is inserted into discharge cone bucket, is ended material, is overhauled.
By the broken heat sinter of single roll crusher, vertical cooling machine top is transported by heat sinter conveying device
Portion, through the revolving top at the top of it, equably cloth flows into the vertical chute of lower section on umbrella chute by umbrella chute,
Continuous flowing from top to bottom by vertical chute flows into the cooling section of lower section to sinter under the effect of gravity, in cooling section with
Cooling wind carries out countercurrent heat exchange and flows downward after sinter is cooled to 150 DEG C or less, flows through the object of uniform air intake device
Expect channel, enter in the discharge cone bucket of lower section, then cold sinter conveying dress is discharged to by the discharge apparatus of discharge cone bucket lower end
It sets, then sinter after cooling is transported into subsequent processing by cold sinter conveyer.
Cooling gas passes through confession under the action of air blower, from the inner ring air inlet duct of uniform air intake device with certain pressure
Enter in cooling section, passes through the sinter bed of material of cooling section from bottom to top, and carry out countercurrent heat exchange with sinter.It is cold after heat exchange
But gas temperature gradually rises, and is discharged through the free charge level of cooling section, forms high-temperature hot-air.High-temperature hot-air is through vertical cooling machine top
Without material space, be discharged by hot-blast outlet, the high-temperature hot-air of discharge enters subsequent afterheat generating system.
The surface toughness of the pelletizing shape sinter of high temperature, once it is cooling, it is adhered to one another, the equipment of the prior art
Discharge difficulty is often resulted in, still, equipment of the invention has well solved this problem.
Generally, the height of tower body is usually 4-24 meters, and preferably 4.5-22 meters, preferably 5-18 meters, preferably 6-12 meters, more preferably
7-10 meters.The overall diameter of tower body is generally 8-30 meters, and preferably 9-27 meters, preferably 10-25 meters, preferably 11-22 meters, more preferable 12-
20 meters.
Compared with prior art, the present invention has following advantageous effects:
Cloth is uniform in present device, and discharge is uniform, and cloth wind is uniform.Also region discharge tune can be carried out according to cooling effect
Function is saved, therefore the cooler good cooling results, hot blast temperature height meet the requirement of sinter adverse current deep bed sintering cooling technique.
The invention vertical cooling machine compared with the ring cold machine of the prior art, do not leak out by simple structure and reliable sealing, if
Standby maintenance is small, and waste heat recovery efficiency is high.Cooling feature of the sintering mine sensible heat rate of recovery generally up to 71% or so.
The technique can also overcome the problems, such as double sintering of the sinter in vertical cooling device, prevent vertical cooling device
There is blocking phenomenon.
1, structure is simple, reduces equipment investment, and reduce the operating cost of equipment；
2, the heat recovery efficiency of the good airproof performance of device, sinter is high and obtains the exhaust gas (hot wind) of high temperature for producing
Raw steam, and for generating electricity in the form of high-temperature steam, electricity generation efficiency is higher；
3, discharge significantly reduces the frequency shut down, overhauled without clogging；
It 4, can be by independently controlling each discharge according to the temperature of the top material of each discharge cone bucket detected
The discharge velocity of cone bucket, to adjust the temperature；
5, sinter radiates heat recovery function: the heat sinter temperature for having just enter into tower body is very high, by bed of material surface to tower
Internal radiation thermal energy, is set in tower body, the radiation heat regenerator of hot-blast outlet front end can recycle radiant heat energy, is converted to height
Warm steam enters afterheat generating system by recuperation of heat pipeline.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the vertical cooling machine with revolving top of the present invention；
Fig. 2 is the cross-sectional view of the position A-A in Fig. 1；
Fig. 3 is the cross-sectional view of the position B-B in Fig. 1；
Fig. 4 is the cross-sectional view of the position C-C in Fig. 1；
Fig. 5 is discharge cone bucket layout drawing of the present invention；
Fig. 6 is uniform air intake apparatus structure schematic diagram of the present invention；
Fig. 7 is the structural schematic diagram of umbrella chute of the present invention；
Fig. 8 is the structural scheme of mechanism of vibrator there are two the double-deck oscillating feeder of the present invention is set；
Fig. 9 is the structural scheme of mechanism that the double-deck oscillating feeder of the present invention is equipped with a vibrator；
Figure 10 is the structural schematic diagram of another vertical cooling machine with revolving top of the present invention；
Figure 11 is the structural schematic diagram of the third vertical cooling machine with revolving top of the invention；
Figure 12 is the schematic diagram of the radiation heat regenerator of pipe type；
Figure 13 is plate belt feeder schematic layout pattern of the present invention；
Figure 14 is a kind of control system schematic diagram of vertical cooling machine of the present invention.
Appended drawing reference: 1: revolving top；2: umbrella chute；201: umbrella chute overall section；202: umbrella chute separates
Section；3: vertical chute；4: tower body top cover；5: tower body side wall；6: cooling section；7: hot-air channel；8: uniform air intake device；801: outer
Ring blast pipe；802: air duct branch pipe；803: inner ring air inlet duct；804: blast main；9: discharge cone bucket；10: hot-blast outlet；11: cold
Sinter conveying device；12: gate valve；13: temperature probe；14: plate belt feeder；15: discharge chute or dump skip；P: vibration
Batcher；P01: body rack；P02: upper layer vibra shoot；P03: lower layer's vibra shoot；P04: vibrator；P0401: upper layer vibration
Device；P0402: lower layer's vibrator；P05: regulating device；F01: radiation heat regenerator；F0101: the water inlet of heat regenerator is radiated；
F0102: the steam (vapor) outlet of heat regenerator is radiated；F02: recuperation of heat pipeline (jet chimney)；K: control system.
Specific embodiment
As shown in Fig. 1-13, according to the present invention, a kind of vertical cooling machine with revolving top, the cooler are provided
It include: revolving top 1, umbrella chute 2, vertical chute 3, tower body, the cooling section 6 being made of tower body top cover 4 and tower body side wall 5
And the hot-blast outlet 10 of top cover or the side wall upper part setting of tower body；Wherein: umbrella chute 2 includes the overall section 201 on top under
The separated section 202 with multiple branches in portion, the upper end of overall section 201 are connect with revolving top 1, separate each of section 202
A branch vertical chute 3 corresponding with lower section connects, and the top of tower body side wall 5, vertical chute 3 is arranged in tower body top cover 4
It is arranged on tower body top cover 4, and the lower end of vertical chute 3 is protruded into tower body, the upper end with umbrella chute 2 separates section 202
Branches end connection, the top of umbrella chute 2 is arranged in revolving top 1, and the lower part of tower body is arranged in cooling section 6；
The gas compartment (no material space) between the top of cooling section 6, vertical chute 3 and tower body forms hot-air channel 7；
The lower section of cooling section 6 is equipped with uniform air intake device 8；
The lower section of uniform air intake device 8 is arranged in multiple discharge cone buckets 9；With
The lower section of discharge cone bucket 9 is equipped with discharge apparatus.
Preferably, in tower body, the front end of hot-blast outlet 10 be equipped with radiation heat regenerator F01.
Preferably, radiation heat regenerator F01 uses fin type heat exchanger or tubulation type heat exchanger.
F0101 is the water inlet for radiating heat regenerator F01, and F0102 is the steam (vapor) outlet for radiating heat regenerator F01.
Preferably, discharge apparatus is oscillating feeder P or plate belt feeder 14.
Preferably, the lower section of the end oscillating feeder P is equipped with cold sinter conveying device 11.
Preferably, discharge apparatus is plate belt feeder 14, is equipped with discharge chute below the discharge port of plate belt feeder 14
Or dump skip 15, the lower section of discharge chute or dump skip 15 are equipped with cold sinter conveying device 11.
It is preferred that the end of discharge cone bucket 9 is equipped with gate valve 12.
It is preferred that the lower part (preferably along circumferencial direction) of cooling section 6 is equipped with temperature probe 13；Preferably, the thermometric
Probe 13 is thermocouple temperature sensor.
It is preferred that uniform air intake device 8 includes annular or the outer ring blast pipe 801 of " C " shape, multiple air duct branch pipes 802 and interior
Ring air inlet duct 803, in which: the outer periphery of tower wall 5, inner ring air inlet duct is arranged in the outer ring blast pipe 801 of annular or " C " shape
803 settings in tower body bottom, one end connection outer ring blast pipe 801 of each air duct branch pipe 802 connected with the other end inner ring into
Air duct 803.Preferably, the side wall of inner ring air inlet duct 803 or side are shutter.
804 be blast main, and the conveying of uniform air intake device 8 cooling gas (such as air) is entered outer by blast main 804
Ring blast pipe 801.
It is preferred that the quantity of the branch of the separated section 202 of umbrella chute 2 and the quantity of corresponding vertical chute 3 are 3-12
It is a, preferably 4-10, more preferably 6-8.
It is preferred that annular spread or circumferentially equably is presented in 8 lower end of uniform air intake device in multiple discharge cone buckets 9
Distribution.
Generally, the number of discharge cone bucket 9 is 4-12, preferably 6-10,6-8.
Generally, the quantity 2-12 of air duct branch pipe 802 is a in uniform air intake device 8, and preferably 3-10, more preferable 4-8, more
It is preferred that 6-8.
It is preferred that the top of inner ring air inlet duct 803 is sealing and lower end is opening.
Generally, uniform air intake device 8 includes 1 or 2 inner ring air inlet duct 803；Preferably, when there is 2 inner ring air inlet ducts
When 803, their upper and lower settings each other.
It is preferred that discharge apparatus is the double-deck oscillating feeder P；The double-deck oscillating feeder P includes body rack P01, upper layer vibration
Dynamic slot P02, lower layer vibra shoot P03, vibrator P04；Upper layer vibra shoot P02 and lower layer vibra shoot P03 is arranged in body rack P01
On, upper layer vibra shoot P02 is located at the top of lower layer vibra shoot P03, upper layer vibra shoot P02 and lower layer vibra shoot P03 respectively with vibration
Dynamic device P04 connection.Preferably, upper layer vibra shoot P02 and/or lower layer vibra shoot P03 is equipped with regulating device P05, adjusts dress
Set the bottom plate inclination angle that P05 adjusts lower layer's vibra shoot P03.
It is preferred that vibrator P04 includes upper layer vibrator P0401 and lower layer vibrator P0402, upper layer vibrator P0401 with
Upper layer vibra shoot P02 connection, lower layer vibrator P0402 are connect with lower layer vibra shoot P03.Preferably, upper layer vibra shoot P02 and
Lower layer vibra shoot P03 is arranged on body rack P01 by spring.
It is preferred that the vertical cooling machine further includes control system K, control system K and uniform air intake device 8, cold sinter are defeated
Device 11, gate valve 12, temperature probe 13, discharge apparatus connection are sent, and controls uniform air intake device 8, cold sinter conveying dress
Set the operation of 11, gate valve 12, temperature probe 13, discharge apparatus.
According to the present invention, a kind of sinter cooling means or next cold using a kind of above-described vertical cooling machine is also provided
But the method for sinter, method includes the following steps:
(1) sinter enters in the revolving top 1 of vertical cooling machine, under gravity continuous flow from top to bottom
It is dynamic, enter vertical chute 3 via umbrella chute 2, is then deposited in the tower body of cooler；
(2) vertical cooling machine uniform air intake device 8 convey cooling gas (such as air) by inner ring air inlet duct 803 into
Enter in tower body, cooling gas passes through from bottom to top is deposited in the intracorporal sinter bed of material of tower, and carries out refluent heat friendship with sinter
It changes, cooling gas temperature gradually rises after heat exchange, and sinter charge level is discharged in vertical cooling machine tower, high-temperature hot-air is formed,
High-temperature hot-air is discharged through hot-air channel 7 from hot-blast outlet 10；Preferably, high-temperature hot-air is transported to afterheat utilizing system (example
Such as afterheat generating system) in；
(3) be deposited in the intracorporal sinter of tower of cooler and cooling gas from bottom to top carry out countercurrent heat exchange and by
It is cooling, it enters in the discharge cone bucket 9 of vertical cooling machine lower part, is then discharged by oscillating feeder P or by plate belt feeder 14
It is discharged in cold sinter conveying device 11 by discharge chute or dump skip 15；With
(4) radiant heat energy of radiation heat regenerator F01 recycling sinter generates high-temperature vapor, and vapor passes through recuperation of heat
Pipeline F02 enters in afterheat generating system.
It is preferred that it is defeated that control system K controls uniform air intake device 8, cold sinter according to the temperature detected of temperature probe 13
Send the operation of device 11, gate valve 12, temperature probe 13, discharge apparatus.
It is preferred that corresponding with each discharge cone bucket 9 be arranged temperature probe 13 above it, according to each temperature probe
13 temperature detected, control system K control the operation of corresponding discharge apparatus.
The equipment also has self feed back discharge regulatory function.The sinter temperature of corresponding region is detected by temperature probe 13
Degree just normally opens the corresponding row in the region after sinter temperature of some circumferential position of detection reaches cooling effect
The discharge apparatus for expecting 9 lower section of cone bucket, carries out normal discharge, conversely, then accordingly decreasing discharge velocity or the closing of discharge apparatus
Discharge apparatus allows the sinter in the region to cool down a period of time again, after sinter temperature reaches cooling effect, then carries out normal
Discharge.It is also possible to carry out the adjusting of discharge velocity by the insertion depth for adjusting gate valve 12.
Embodiment 1
The height of tower body is 8 meters, and the overall diameter of tower body is 13 meters.The height of discharge cone bucket 9 is 7 meters.Discharge apparatus is vibration
Dynamic batcher P.In tower body, the front end of hot-blast outlet 10 be equipped with radiation heat regenerator F01；Using tubulation type heat exchanger, such as scheme
Shown in 12.
The daily handling ability of sinter is 8650 ton/days.The temperature of sinter into before in revolving top 1 is
700 DEG C or so, the hot blast temperature of hot-blast outlet 10 reaches 502 DEG C or so.For the heat of recycling for generating electricity, generated energy is about 36
Degree electricity.
Compared with the ring cold machine of the prior art, advantage is: generated energy is high, air leak rate of air curtain is low, dust emission is small, and equipment simply may be used
It leans on, due to better tightness, technology of the invention is capable of providing the hot wind of higher temperature for generating high-temperature steam, significantly improves
Electricity generation efficiency.
The technique can also overcome the problems, such as double sintering of the sinter in vertical cooling device, prevent vertical cooling device
There is blocking phenomenon.Device is run 6 months, putty, stuck problem does not occur.
Embodiment 2
Embodiment 1 is repeated, only discharge apparatus is plate belt feeder 14, as shown in figure 11.
Claims (12)
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| CN112240710A (en) * | 2020-11-02 | 2021-01-19 | 胡锡文 | Vertical flow annular cooler for cement clinker |
| CN112474292A (en) * | 2020-11-27 | 2021-03-12 | 陕西龙门钢铁有限责任公司 | Device for secondary screening of blast furnace return ores in steel plant |
| CN113175822A (en) * | 2021-04-30 | 2021-07-27 | 胡锡文 | Pneumatic grading rotary cooler for cement clinker |
| CN116136361A (en) * | 2023-04-20 | 2023-05-19 | 泽州县金秋铸造有限责任公司 | Lifting type vertical cooling kiln cooling mechanism |
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| CN113175822A (en) * | 2021-04-30 | 2021-07-27 | 胡锡文 | Pneumatic grading rotary cooler for cement clinker |
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