CN206959604U - A kind of flashboard unloading type vertical cooling machine - Google Patents
A kind of flashboard unloading type vertical cooling machine Download PDFInfo
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- CN206959604U CN206959604U CN201621482463.7U CN201621482463U CN206959604U CN 206959604 U CN206959604 U CN 206959604U CN 201621482463 U CN201621482463 U CN 201621482463U CN 206959604 U CN206959604 U CN 206959604U
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Abstract
Flashboard unloading type vertical cooling machine, including：Feed bin (1), cloth tube (2), the tower body being made up of tower body top cover (3), tower wall (4), the tower body cone cylinder (5) below tower wall (4) and bottom of towe (D), vane (H), blast cap (M), multiple Discharge outlets (5a) of discharge cone bucket (5) bottom are arranged on, and the hot-blast outlet (8) being arranged on tower wall (4) top or tower body top cover (3)；The fixed interval (FI) of one week is formed between the bottom of tower wall (4) and the top of discharge cone bucket (5) as vane (H), the center of bottom of towe is provided with the blast cap (M) for extending upwardly into tower body inner space, discharge gate (12) is correspondingly provided with each Discharge outlet (5a) place, and discharging channel (10) is provided with the lower section of discharge gate (12).
Description
Technical field
Flashboard unloading type vertical cooling machine is the utility model is related to, belongs to ironmaking field and field of Environment Protection.
Background technology
During modern sintering process, " cooling " is one of more crucial process.Sintering deposit is in the roasting by sintering machine
After burning, high temperature finished product ore deposit has been formed, how on the premise of its quality and yield rate is not influenceed protectiveness cooling to be carried out to it,
Finished product ore storage bin can be sent into through belt feeder, while the sensible heat energy perfection entrained by it is recycled, is all the time
The problem of skilled worker constantly studies in the industry.Since the 1960s, the cooling technique of sintering deposit is developed rapidly, its
It is broadly divided into belt cooling, ring type cooling and disc type cooling three major types.In the market competition in later stage, belt cooling technology is washed in a pan
Eliminate, remaining ring type cooling respectively has its advantage and disadvantage with disc type cooling technology.But Integrated comparative, the cold UTILIZATION OF VESIDUAL HEAT IN colder than ring of disk
Rate is more preferable (all sintering mine sensible heats are recycled utilization), therefore market application is very extensive abroad for disk cold, and this patent is also
It is illustrated around disk cold technology.
Disk cold technology develops since the seventies, most start for transverse type disk it is cold, that is, cool down wind be out of disk cold
Ring outer shroud flows, and is horizontally through the bed of material to be cooled and is exchanged heat with it, and the cooling wind after having exchanged heat is directly outer to drain into air.So do
Both it is uneconomical or not environmentally, optimize by continuous research for many years, newest disk cold technology is Mitsubishi Hitachi with
Contain " 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 air
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 been 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, so
On the one hand it is to play a part of uniform blanking, is on the other hand to play material envelope to prevent charging aperture string wind action.Mineral aggregate continue to
It is lower to enter after hood in disk cold casing, push into the stock column of certain altitude.At the same time, by the negative pressure shadow of air exhauster
Ring, the air near disk cold can be inhaled into stock column via blinds air-intake device, exchanged heat, changed therewith through stock column from the bottom up
Air after heat is passed into air outlet from stock column top surface, is sent to gravitational precipitator and waste heat boiler, finally by taking out
By outer row after blower fan.It is 37 degree of stocking angle triangles that sintering feed after being cooled down by air forms cross section at disk cold lower tray
The annular accumulation area of shape, when being turned to discharge zone, sintering feed is scraped by scraper plate device, and completion refrigerating work procedure enters next
Individual process links.
Hitachi of Mitsubishi with it is middle Sheng steel " air-draft-type longitudinal direction disk refrigeration technique " although more conventional technology has marked improvement, but still
Following five point defect so be present：
1) device whole height requires too high：Because " air-draft-type longitudinal direction disk refrigeration technique " takes exhausting mode, so necessary
Material envelope, that is, the stock column accumulated in D1 Fig. 1 in feed chute 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
Either just need to rise whole sintering machine absolute altitude during dress, or just need down to dig the civil engineering plane of disk cold.No matter choosing
Which kind of mode is selected, a high cost of investment can be all caused, not calculate very much 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 "
Flow for open circuit circulation, the directly outer row of the air come out from waste heat boiler does not recycle, and so causes what is spent also 100 more
Air sensible is wasted, and contains a large amount of little particle dust in the air arranged outside, and a certain degree of particle is caused for air
Thing pollutes；
3) material serious wear at charging aperture：Because " air-draft-type longitudinal direction disk refrigeration technique " sets material envelope at feed chute,
Therefore have one section of frictional distance between charge level upper strata in material envelope bottom and disk cold casing.Now sintering feed is expected in high temperature and top
Under the double-deck bad working environments of post extruding, efflorescence is easy to when being rubbed and becomes broken, so as to reduce the yield rate of sintering machine；
4) environmental pollution is more serious：Due to the negative pressure exhausting technology that " air-draft-type longitudinal direction disk refrigeration technique " is taken, thus it
It is not provided with sealing closure assembly at lower box pallet.So when sintering deposit is scraped by doctor blade device, easily cause a large amount of trickle
Particle splashes with dust.And once air exhauster breaks down and overhauled, the material dust pushed around disk cold can all enter big
Gas, is caused and its ill effect to the operating environment by machine.
5) the waste heat boiler thermal efficiency is not up to highest：Because " air-draft-type longitudinal direction disk refrigeration technique " be not the air for passing the bed of material
Precisely it is classified according to wind-warm syndrome, but is all mixed into waste heat boiler, will certainly so when low-temperature zone outlet wind-warm syndrome is too low
The air themperature into waste heat boiler is dragged down, so as to reduce the thermal efficiency value of waste heat boiler.
At present, sintering deposit cooling is mainly using the conventional belt based on strong wind rapid cooling, disposable handling cooling principle
Cooler or circular cooler.No matter which kind of type of cooling used, it is big air leak rate of air curtain to be all present in cooler, and blower fan power consumption is high, sensible heat
The rate of recovery is low, the problems such as boiler thermal output is low.In other words, in the Vehicles Collected from Market requirement with green manufacturing energy-saving to sintering production
Under increasingly stricter overall situation, originally device structure has been difficult to realize sintering mine sensible heat high efficiente callback with utilizing.
Therefore, the limitation of traditional ring type cooling or belt cooling is broken through, develops a kind of sintering mine sensible heat high efficiente callback
Technique and technical equipment, it has been the only way of sintering industry energy-conserving and environment-protective.
Utility model content
Therefore, by substantial amounts of research work in terms of domestic and international sintering mine sensible heat recovery, it is proposed that one kind is based on small wind
Slow cooling sintering deposit adverse current deep bed sintering cooling technique.The technique has that sintering deposit cooling velocity is slow, and ton consumption cooling air quantity is small, exhausted air quantity
Relatively small, EGT is high, and boiler thermal output is high, and cooling waste 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 sintering deposit adverse current deep bed sintering cooling technique, a kind of vertical cooling of utility model
The characteristics of machine, the vertical cooling machine have cloth uniform, and discharge is uniform, and cloth wind is uniform, also region can be carried out according to cooling effect
Discharge regulatory function, therefore the cooler good cooling results, hot blast temperature is high, meets wanting for sintering deposit adverse current deep bed sintering cooling technique
Ask.
The utility model vertical cooling machine is simple in construction compared with former central cooler, sealed reliable, does not leak out, equipment dimension
Shield amount is small, waste heat recovery efficiency high.
A kind of vertical cooling machine for cooling down sintering deposit is to provide according to the purpose of this utility model, it is tower knot
Structure, therefore, also referred to as tower cooler.
According to the utility model, there is provided a kind of flashboard unloading type vertical cooling machine, the vertical cooling machine include：Feed bin, cloth
Expects pipe, the tower body being made up of tower body top cover, tower wall, the tower body cone cylinder below tower wall and bottom of towe, vane, blast cap, is arranged on
Multiple Discharge outlets of tower body cone cylinder bottom, and the hot-blast outlet being arranged on tower wall top or tower body top cover；
Wherein, top cover is fixedly connected with the upper end of tower wall, and feed bin is arranged on the top of top cover, the upper end of cloth tube and feed bin
Bottom connection, the lower end of cloth tube extend into the lower section of top cover,
Annular spread or the multiple Discharge outlet edge is presented in surrounding of the multiple Discharge outlet in tower body cone cylinder bottom
The circumferencial direction for tower body cone cylinder bottom is evenly distributed,
The fixed interval (FI) of one week is formed between the bottom of tower wall and the top of tower body cone cylinder as vane,
The center of bottom of towe is provided with the blast cap for extending upwardly into tower body inner space, and
Discharge gate or discharge gate are correspondingly provided with each Discharge outlet, and row is provided with the lower section of discharge gate
Expect passage；Preferably, the discharging channel is the feeding chute corresponding with each Discharge outlet or the discharging channel is whole
One dump skip of body design.
Typically, blast cap stretches into tower body inner space so that the height of blast cap airduct (i.e. the stem of blast cap) sufficiently achieves vane
Height.
It is preferred that the end or lower section of discharging channel, such as the end of feeding chute or the lower section of dump skip, provided with cold sintering
Ore deposit conveying device.
It is preferred that in the bottom of tower wall or lower section and in the top of tower body cone cylinder, further setting tower wall changeover portion.This
Sample, in the more convenient installation tower body cone cylinder in the bottom of tower wall.In this case, by tower body top cover, tower wall and the (inverted cone of bottom
Tubular or back taper tubular) tower wall changeover portion constitutes tower body.Back taper tubular or rounding cone barrel is presented in tower wall changeover portion, i.e.
The interior diameter of its bottom is less than the interior diameter on its top.It may also be referred to as transition bucket or make top cone bucket.Back taper tubular
Or the cone angle of the tower wall changeover portion of rounding cone barrel is usually 60-75 degree, preferably>63.5 degree.
The overall diameter of the lower end of tower body cone cylinder is less than the overall diameter of upper end.Therefore, back taper tubular is presented in tower body cone cylinder.
Typically, the vertical cooling machine also includes vane air supply device, and the vane air supply device includes vane air channel and in wind
The vane airduct connected on ring air channel, the circular vane in the vane air channel are simultaneously coupled logical.
Typically, vertical cooling machine also includes blast cap air supply device, and the blast cap air supply device includes multiple blast cap branch pipes, annular
Or the blast cap air channel and the blast cap airduct that is connected with blast cap air channel of " C " shape, one end and the blast cap air channel of each blast cap branch pipe connect
The logical and other end connects with the bottom of blast cap or stem.Stem described here is blast cap airduct.
It is preferred that it is provided with temperature probe in the bottom of tower wall.It is further preferred that the temperature probe is thermocouple temperature sensor.
Using vane as cut-point, height (or making bottom bed depth) h1 of tower body cone cylinder is more than the windrow height of tower wall
Spend (or making top bed depth) h2.
Typically, the number of the Discharge outlet of tower body cone cylinder bottom is 4-12, preferably 6-10,6-8.
Typically, the quantity of blast cap branch pipe is 1-12 roots, preferably 2-10 roots, more preferably 4-8 roots, more preferably 6-8 roots.It is excellent
Choosing, blast cap branch pipe are bent downwardly the bottom for being connected to blast cap, or blast cap branch pipe is connected to blast cap through the wall of tower body cone cylinder
Stem be blast cap airduct.
It is preferred that the blast cap includes support frame, hood top cover, multiple taper cover plates and blast cap airduct, multiple taper cover plates
It is successively set on support frame, from top to bottom, the base diameter of taper cover plate increases successively；Hood top cover is arranged on top cone
The top of shape cover plate, airduct are arranged on the lower section of support frame and are connected with support frame.Preferably, the hood top cover is cone
Shape structure.
It is preferred that the vertical cooling machine also includes control system, control system and vane air supply device, blast cap air supply device,
Temperature probe, discharge gate, the connection of cold sinter conveying device, and control vane air supply device, blast cap air supply device, thermometric to visit
The operation of head, discharge gate, cold sinter conveying device.
According to the utility model, a kind of sintering deposit cooling means or vertical using above-described flashboard unloading type is also provided
Cooler cools down the method for sintering deposit, and this method comprises the following steps：
(1) sintering deposit enters in the feed bin of vertical cooling machine, under gravity continuous flowing from top to bottom, via cloth
Expects pipe, it is deposited in the tower body of cooler；
(2) the vane air supply device of vertical cooling machine and blast cap air supply device convey cooling gas (i.e. cold wind or sky respectively
Gas) entered by vane and blast cap in tower body, cooling gas from bottom to top through the sintering deposit bed of material being deposited in tower body, and with
Sintering deposit carries out countercurrent heat exchange, and cooling gas temperature gradually rises after heat exchange, sintered ore materials in the tower through vertical cooling machine
Face is discharged, and forms high-temperature hot-air, and high-temperature hot-air is discharged through hot-blast outlet；Preferably, high-temperature hot-air is transported to UTILIZATION OF VESIDUAL HEAT IN
In system (such as afterheat generating system)；
(3) be deposited in sintering deposit in the tower body of cooler and cooling gas from bottom to top carry out countercurrent heat exchange and by
Cooling, is entered in the tower body cone cylinder of vertical cooling machine bottom, is then discharged from multiple Discharge outlets of the bottom of tower body cone cylinder,
Then via discharging channel blowdown (such as blowdown to cold sinter conveying device on).
It is preferred that the temperature detected according to temperature probe, control system control vane air supply device, blast cap air supply device,
The operation of discharge gate or discharge gate and cold sinter conveying device.
It is preferred that setting temperature probe corresponding with each Discharge outlet, the temperature detected according to each temperature probe
Degree, control system control the operation (that is, the operation for controlling corresponding Discharge outlet) of corresponding discharge gate or discharge gate,
Such as upper and lower motion.By the lifting or opening and closing of (at Discharge outlet) discharge gate or discharge gate, to adjust above it
The temperature of material.
It is preferred that in vertical cooling machine, the height h1 of tower body cone cylinder is more than the feed height h2 of tower wall.
In the utility model, material is discharged by discharge gate from inside to outside in the bottom of tower body cone cylinder, can be tried one's best
Reduce the downward velocity of discharge difference of the material of center and peripheral in vertical cooling machine tower.Burning after the cooling of discharge gate discharge
Knot ore deposit is flowed into the discharging channel (such as bottom chute) of lower section, then the lower part outlet from discharging channel (such as bottom chute)
Outflow, flows into the conveyer of its underpart, next process is transported to by conveyer.Cooling wind into tower body passes through and heat burning
After the heat exchange for tying ore deposit, heat sinter is cooled to less than 150 DEG C, and itself being heated to higher temperature turns into hot blast, heat
Wind is passed through after the bed of material by the charge level on bed of material top, the non-material area of the upper end of the tower body formed into top cover and tower wall, Ran Houzai
Discharged by hot-blast outlet, into follow-up afterheat generating system.
Feed bin is a cylindrical or square barrel-like structure, for buffering the heat sinter for holding conveyer transport and coming, material
Orlop portion is fixedly connected on top cover.Cloth tube is a cylindrical or square barrel-like structure, positioned at bin bottom, its upper end and material
Orlop portion is fixedly connected, and lower end is stretched into below top cover, inside the tower body formed positioned at top cover and tower wall, wherein, sintering deposit can be with
Entered under gravity inside cloth tube from the bottom of feed bin, and can be under gravity from cloth tube lower openings
Freely flow out.Tower wall is a cylindrical or square barrel-like structure, and its upper end is fixedly connected with top cover, tower wall lower end and tower body cone cylinder
Between form the fixed interval (FI) of one week, be vane, on the basis of some position is fixed on therebetween, the weight of top cover is undertaken on
Tower wall one week.Vane is the one week cavity formed between tower wall and tower body cone cylinder, and cooling wind can be uniformly across a circle wind
Sintering deposit in ring tower body is blown into, and is sintered the cooling of ore deposit.Vane air supply device, can be to one week air feed of vane.Blast cap
Positioned at tower wall inner lower position, it is seated on tower body cone cylinder, cooling wind can be uniformly through in one circumferential tower body of blast cap
Sintering deposit is blown into, and is sintered the cooling of ore deposit.Tower body cone cylinder is located at tower wall lower end, is fixed with basis, while the shape between tower wall
Into vane, blast cap is fixed thereon end.It is preferred that tower body cone cylinder is shaped as up big and down small conical structure.Burning after cooling
Knot ore deposit is by gravity flowed into tower body cone cylinder.Material in tower body cone cylinder, by being moved down on each discharge gate
It is dynamic, the discharge velocity of the corresponding material outlet of tower body cone cylinder can be controlled.Typically, hot-blast outlet is located at tower wall top, with
Tower wall is fixedly connected, and with connect inside tower body, hot blast is through the charge level after the bed of material by bed of material top, into top cover and tower
The non-material area of the upper end for the tower body that wall is formed, then discharged again by hot-blast outlet, into follow-up afterheat generating system.
Preferably, several temperature probes are circumferentially evenly arranged in tower wall bottom, its position is located at vane top, fixed
In tower wall, its one end extend into a bit of in tower body, the temperature for the sintering deposit of detection herein, it is preferable that temperature probe
It can be thermocouple temperature sensor.It is just normal after the sintering deposit temperature of some circumferential position of detection reaches cooling effect
The discharge gate below tower body cone cylinder corresponding to the region is opened on ground, carries out normal discharge, conversely, then mutually reply reduces row
Expect the open height of gate or close discharge gate, allow the sintering deposit in the region to cool down a period of time again, when sintering deposit temperature reaches
To after cooling effect, normal discharge is being carried out.
Preferably, vane air supply device is made up of vane air channel and vane airduct, and vane air channel is arranged on the outside of vane, will
Vane is surrounded for one week, and cooling wind can equably be connected by vane air channel to vane air feed, vane airduct with vane air channel
It is logical, to vane air channel air feed.
Preferably, blast cap air supply device is made up of blast cap branch pipe, blast cap air channel and blast cap airduct.Blast cap branch pipe is circumferentially equal
It is even to arrange several.Preferably, each blast cap branch pipe connects through the wall of tower body cone cylinder and the stem of blast cap, or is bent downwardly
It is connected with the bottom of blast cap.It is responsible for equably to each blast cap branch pipe air feed in blast cap air channel.Blast cap airduct is responsible for blast cap air channel
Air feed.
Heat sinter after single roll crusher is broken, vertical cooling machine top is transported by heat sinter conveying device
Portion, enter in vertical cooling machine feed bin, sintering deposit continuous flowing from top to bottom under gravity, by vertical cooling machine material
Storehouse and cloth tube, natural packing carry out countercurrent heat exchange in tower body, with the cooling wind in machine from bottom to top, and sintering deposit temperature is cold
But to after less than 150 DEG C, by the tower body cone cylinder of vertical cooling machine bottom, discharging channel is then discharged to by discharge gate
In (such as bottom chute), then it is discharged to from the end of discharging channel or lower section in cold sinter conveying device, then by cold sintering
Sintering deposit after cooling is transported subsequent processing by ore deposit conveying device.
Cooling gas is in the presence of circulating fan, from vertical cooling machine vane air supply device and blast cap air supply device with one
Fixed pressure is fed in body by vane and blast cap, from bottom to top through the sintering deposit bed of material, and carries out refluent heat with sintering deposit
Exchange.Cooling gas temperature gradually rises after heat exchange, is discharged through sintering deposit charge level in vertical cooling machine tower, forms high warm
Wind.Hot-blast outlet discharge of the high-temperature hot-air through vertical cooling machine top.The high-temperature hot-air of discharge enters follow-up cogeneration
System.
Preferably, the equipment also has self feed back discharge regulatory function.The sintering of respective regions is detected by temperature probe
Ore deposit temperature, after the sintering deposit temperature of some circumferential position of detection reaches cooling effect, it is corresponding just normally to open the region
Tower body cone cylinder below discharge gate, carry out normal discharge, conversely, then mutually reply reduce discharge gate open height or pass
Discharge gate is closed, allows the sintering deposit in the region to cool down a period of time again, after sintering deposit temperature reaches cooling effect, then carries out just
Normal discharge.
The surface toughness of the pelletizing shape sintering deposit of high temperature, once cooling, is adhered to one another, the equipment of prior art
Discharge difficulty is often resulted in, still, equipment of the present utility model solves this problem well.
Typically, the height for the tower body being made up of top cover and tower wall, the tower body cone cylinder below tower wall and bottom of towe is usually
4-25 rice, preferably 5-22 rice, more preferably 6-20 rice, further preferred 7-18 rice, still more preferably 8-15 rice, more preferably
9-14 rice.The overall diameter of tower body is generally 8-30 rice, preferably 9-27 rice, preferably 10-25 rice, preferably 11-22 rice, more preferably 12-
20 meters, more preferably 13-18 rice, such as 15 meters.
In this application, the diameter of blast cap is usually 1-5 rice, preferably 1.5-4 rice, preferably 1.8-3.5 rice, more preferably 2-
3 meters, still more preferably 2.2-2.8 rice, such as 2.5 meters.
In this application, the diameter of vane or interior diameter are usually 5-30 rice, preferably 7-26 rice, preferably 8-24 rice, preferably
9-22 rice, preferably 10-20 rice, more preferably 12-15 rice.
The diameter or interior diameter of vane are usually 0.65-0.96 times of the overall diameter of tower body, preferably 0.68-0.94 times, excellent
Select 0.70-0.92 times, more preferably 0.73-0.9 times, more preferably 0.78-0.88 times, more preferably 0.8-0.86 times.
Chute as discharging channel has such as 1 meter of width, 9 meters of height.
Compared with prior art, the utility model has following advantageous effects：
Technique of the present utility model has that sintering deposit cooling velocity is 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 output is high, and cooling waste gas can all be utilized by boiler, and the sintering mine sensible heat rate of recovery is typically left up to 70%
Right cooling feature.Also, the technique can also overcome double sintering problem of the sintering deposit in vertical cooling device, prevent from standing
There is blocking phenomenon in formula cooling device.
Cloth is uniform in the utility model device, and discharge is uniform, and cloth wind is uniform.Also region row can be carried out according to cooling effect
Material regulatory function, therefore the cooler good cooling results, hot blast temperature is high, meets wanting for sintering deposit adverse current deep bed sintering cooling technique
Ask.
The utility model vertical cooling machine is simple in construction compared with the central cooler of prior art, sealed reliable, does not leak
Wind, plant maintenance amount is small, waste heat recovery efficiency high.Cooling feature of the sintering mine sensible heat rate of recovery typically up to 73% or so.
1st, it is simple in construction, equipment investment is reduced, and reduce the running cost of equipment；
2nd, the good airproof performance of device, the heat recovery efficiency of sintering deposit is high and obtains the waste gas (hot blast) of high temperature for producing
Raw steam, and be used to generate electricity in the form of high-temperature steam, electricity generation efficiency is higher；
3rd, discharge significantly reduces shutdown, the frequency of maintenance without clogging；
4th, can be by independently controlling each discharge according to the temperature of the top material of each tower body cone cylinder detected
Gate is lifted to adjust the discharge velocity of Discharge outlet, and then adjusts the temperature.
Brief description of the drawings
Fig. 1 is a kind of structural representation of vertical cooling machine of the utility model；
Fig. 2 is the utility model vane and vane air supply device structural representation；
Fig. 3 is the utility model blast cap and blast cap air supply device structural representation；
Fig. 4 is the utility model tower body cone cylinder layout drawing；
Fig. 5 is the utility model temperature probe layout drawing；
Fig. 6 is the utility model discharge gate layout drawing；
Fig. 7 is the structural representation of the utility model blast cap.
Fig. 8 is the schematic diagram of the control system of the utility model vertical cooling machine.
Reference：A1：Flashboard type vertical cooling machine；1：Feed bin；2：Cloth tube；3：Top cover；4：Tower wall；4a：Tower wall mistake
Cross section；5：Tower body cone cylinder；5a：Discharge outlet；5b：Optional (that is, dispensable) Discharge outlet seal closure；6：Vane air feed
Device；601：Vane air channel；602：Vane airduct；7：Blast cap air supply device；701：Blast cap by-path；702：Blast cap air channel；703：
Blast cap airduct；8：Hot-blast outlet；9：Temperature probe；10：Discharging channel (such as feeding chute or blowdown bucket)；11：Cold sinter
Conveying device；12：Discharge gate；H：Vane；M：Blast cap；M01：Support frame；M02：Top cover；M03：Taper cover plate；M04：Blast cap
Airduct；D：Bottom of towe.K：Control system.
h1：The height of tower body cone cylinder；h2：The tower wall feed height of tower body.
Embodiment
As shown in figs. 1-7, according to the utility model, there is provided a kind of flashboard unloading type vertical cooling machine, the vertical cooling
Machine A1 includes：Feed bin 1, cloth tube 2, it is made up of tower body top cover 3, tower wall 4, the tower body cone cylinder 5 positioned at the lower section of tower wall 4 and bottom of towe D
Tower body, vane H, blast cap M be arranged on multiple Discharge outlet 5a of the bottom of tower body cone cylinder 5, and be arranged on the top of tower wall 4 or
Hot-blast outlet 8 on tower body top cover 3；
Wherein, top cover 3 is fixedly connected with the upper end of tower wall 4, and feed bin 1 is arranged on the top of top cover 3, the upper end of cloth tube 2
It is connected with the bottom of feed bin 1, the lower end of cloth tube 2 extend into the lower section of top cover,
Annular spread or the multiple Discharge outlet is presented in surroundings of the multiple Discharge outlet 5a in the bottom of tower body cone cylinder 5
Circumferencial directions of the 5a along the bottom of tower body cone cylinder 5 is evenly distributed,
The fixed interval (FI) of one week is formed between the bottom of tower wall 4 and the top of tower body cone cylinder 5 as vane H,
Bottom of towe D center is provided with the blast cap M for extending upwardly into tower body inner space, and
Discharge gate 12 or discharge gate 12 are correspondingly provided with each Discharge outlet 5a, and under discharge gate 12
Side is provided with discharging channel 10；Preferably, the discharging channel 10 be the feeding chute corresponding with each Discharge outlet 5a or
The discharging channel 10 is a dump skip of global design.
Typically, blast cap M stretches into tower body inner space so that blast cap airduct M04 (i.e. the stem of blast cap) height sufficiently achieves
Vane H height.
It is preferred that the end or lower section of discharging channel 10, such as the end of feeding chute or the lower section of dump skip, provided with cold burning
Tie ore deposit conveying device 11.
It is preferred that in the bottom of tower wall 4 or lower section and in the top of tower body cone cylinder 5, further setting tower wall changeover portion 4a.
So, in the more convenient installation tower body cone cylinder 5 in the bottom of tower wall 4.In this case, by tower body top cover 3, tower wall 4 and bottom
(back taper tubular) tower wall changeover portion 4a constitutes tower body.Back taper tubular is presented in tower wall changeover portion 4a, i.e. its bottom it is interior straight
Footpath is less than the interior diameter on its top.It may also be referred to as transition bucket or make top cone bucket.The tower wall changeover portion 4a of back taper tubular
Cone angle be usually 60-75 degree, preferably>63.5 degree.
The overall diameter of the lower end of tower body cone cylinder 5 is less than the overall diameter of upper end.Therefore, tower body cone cylinder 5 present back taper tubular or
Rounding cone barrel.
Typically, vertical cooling machine A1 also includes vane air supply device 6, and the vane air supply device 6 includes vane air channel 601
It is simultaneously coupled logical with the vane airduct 602 connected on vane air channel 601, the circular vane H in the vane air channel 601.
Typically, vertical cooling machine A1 also includes blast cap air supply device 7, and the blast cap air supply device 7 includes multiple blast cap branch pipes
701st, annular or " C " shape blast cap air channel 702 and the blast cap airduct 703 being connected with blast cap air channel 702, each blast cap branch pipe
701 one end connects with blast cap air channel 702 and the other end connects with blast cap M bottom or stem.Stem described here is wind
Cap airduct M04.Blast cap airduct 703 is connected to air blower, so as to the air feed of blast cap air channel 702.
It is preferred that it is provided with temperature probe 9 in the bottom of tower wall 4.It is further preferred that the temperature probe 9 senses for electric thermo-couple temperature
Device.
The height h1 of tower body cone cylinder 5 is more than the feed height h2 of tower wall 4
Typically, the Discharge outlet 5a of the bottom of tower body cone cylinder 5 number is 4-12, preferably 6-10,6-8.
Typically, the quantity of blast cap branch pipe 701 is 1-12 roots, preferably 2-10 roots, more preferably 4-8 roots, more preferably 6-8
Root.Preferably, blast cap branch pipe 701 is bent downwardly the bottom for being connected to blast cap M, or blast cap branch pipe 701 passes through tower body cone cylinder 5
Wall is connected to blast cap M stem i.e. blast cap airduct M04.
It is preferred that the blast cap M includes support frame M01, hood top cover M02, multiple taper cover plate M03 and blast cap airduct
M04, multiple taper cover plate M03 are successively set on support frame M01, and from top to bottom, taper cover plate M03 base diameter increases successively
Greatly；Hood top cover M02 is arranged on top taper cover plate M03 top, airduct M04 be arranged on support frame M01 lower section and
It is connected with support frame M01.Preferably, the hood top cover M02 is pyramidal structure.
It is preferred that vertical cooling machine A1 also includes control system K, control system K and vane air supply device 6, blast cap air feed
Device 7, temperature probe 9, discharge gate 12, cold sinter conveying device 11 connect, and control vane air supply device 6, blast cap to supply
The operation of wind apparatus 7, temperature probe 9, discharge gate 12, cold sinter conveying device 11.
According to the utility model, a kind of sintering deposit cooling means or vertical using above-described flashboard unloading type is also provided
Cooler cools down the method for sintering deposit, and this method comprises the following steps：
(1) sintering deposit enters in vertical cooling machine A1 feed bin 1, under gravity continuous flowing from top to bottom, warp
By cloth tube 2, it is deposited in the tower body of cooler；
(2) vertical cooling machine A1 vane air supply device 6 and blast cap air supply device 7 convey cooling gas (i.e. cold wind respectively
Or air) entered by vane H and blast cap M in tower body, cooling gas is from bottom to top through the sintered ore materials being deposited in tower body
Layer, and countercurrent heat exchange is carried out with sintering deposit, cooling gas temperature gradually rises after heat exchange, through being burnt in vertical cooling machine A1 towers
The discharge of mineral aggregate face is tied, forms high-temperature hot-air, high-temperature hot-air is discharged through hot-blast outlet 8；Preferably, high-temperature hot-air is transported to remaining
In heat utilization system (such as afterheat generating system)；
(3) be deposited in sintering deposit in the tower body of cooler and cooling gas from bottom to top carry out countercurrent heat exchange and by
Cooling, is entered in the tower body cone cylinder 5 of vertical cooling machine A1 bottoms, then from multiple Discharge outlets of the bottom of tower body cone cylinder 5
5a is discharged, then via the blowdown of discharging channel 10 (such as blowdown to cold sinter conveying device 11 on).
It is preferred that the temperature detected according to temperature probe 9, control system K control vanes air supply device 6, blast cap air feed dress
Put the operation of 7, discharge gate 12 or discharge gate 12 and cold sinter conveying device 11.
It is preferred that setting temperature probe 9 corresponding with each Discharge outlet 5a, is detected according to each temperature probe 9
Temperature, control system K controls the operation of corresponding discharge gate 12 or discharge gate 12, such as upper and lower motion.Pass through row
The lifting or opening and closing of gate 12 or discharge gate 12 are expected, to adjust the temperature of the material above it.
It is preferred that in vertical cooling machine A1, the height h1 of tower body cone cylinder 5 is more than the feed height h2 of tower wall 4.
In the utility model, material is discharged by discharge gate from inside to outside in the bottom of tower body cone cylinder 5, can be tried one's best
Reduce the downward velocity of discharge difference of the material of center and peripheral in vertical cooling machine tower.Burning after the cooling of discharge gate discharge
Knot ore deposit is flowed into the discharging channel (such as bottom chute) of lower section, then the lower part outlet from discharging channel (such as bottom chute)
Outflow, flows into the conveyer of its underpart, next process is transported to by conveyer.Cooling wind into tower body passes through and heat burning
After the heat exchange for tying ore deposit, heat sinter is cooled to less than 150 DEG C, and itself being heated to higher temperature turns into hot blast, heat
Wind is passed through after the bed of material by the charge level on bed of material top, the non-material area of the upper end of the tower body formed into top cover and tower wall, Ran Houzai
Discharged by hot-blast outlet, into follow-up afterheat generating system.
Feed bin is a cylindrical or square barrel-like structure, for buffering the heat sinter for holding conveyer transport and coming, material
Orlop portion is fixedly connected on top cover.Cloth tube is a cylindrical or square barrel-like structure, positioned at bin bottom, its upper end and material
Orlop portion is fixedly connected, and lower end is stretched into below top cover, inside the tower body formed positioned at top cover and tower wall, wherein, sintering deposit can be with
Entered under gravity inside cloth tube from the bottom of feed bin, and can be under gravity from cloth tube lower openings
Freely flow out.Tower wall is a cylindrical or square barrel-like structure, and its upper end is fixedly connected with top cover, tower wall lower end and tower body cone cylinder
Between form the fixed interval (FI) of one week, be vane, on the basis of some position is fixed on therebetween, the weight of top cover is undertaken on
Tower wall one week.Vane is the one week cavity formed between tower wall and tower body cone cylinder, and cooling wind can be uniformly across a circle wind
Sintering deposit in ring tower body is blown into, and is sintered the cooling of ore deposit.Vane air supply device, can be to one week air feed of vane.Blast cap
Positioned at tower wall inner lower position, it is seated on tower body cone cylinder, cooling wind can be uniformly through in one circumferential tower body of blast cap
Sintering deposit is blown into, and is sintered the cooling of ore deposit.Tower body cone cylinder is located at tower wall lower end, is fixed with basis, while the shape between tower wall
Into vane, blast cap is fixed thereon end.It is preferred that tower body cone cylinder is shaped as up big and down small conical structure.Burning after cooling
Knot ore deposit is by gravity flowed into tower body cone cylinder.Material in tower body cone cylinder, by being moved down on each discharge gate
It is dynamic, the discharge velocity of the corresponding material outlet of tower body cone cylinder can be controlled.Typically, hot-blast outlet is located at tower wall top, with
Tower wall is fixedly connected, and with connect inside tower body, hot blast is through the charge level after the bed of material by bed of material top, into top cover and tower
The non-material area of the upper end for the tower body that wall is formed, then discharged again by hot-blast outlet, into follow-up afterheat generating system.
Preferably, several temperature probes are circumferentially evenly arranged in tower wall bottom, its position is located at vane top, fixed
In tower wall, its one end extend into a bit of in tower body, the temperature for the sintering deposit of detection herein, it is preferable that temperature probe
It can be thermocouple temperature sensor.It is just normal after the sintering deposit temperature of some circumferential position of detection reaches cooling effect
The discharge gate below tower body cone cylinder corresponding to the region is opened on ground, carries out normal discharge, conversely, then mutually reply reduces row
Expect the open height of gate or close discharge gate, allow the sintering deposit in the region to cool down a period of time again, when sintering deposit temperature reaches
To after cooling effect, normal discharge is being carried out.
Preferably, vane air supply device is made up of vane air channel and vane airduct, and vane air channel is arranged on the outside of vane, will
Vane is surrounded for one week, and cooling wind can equably be connected by vane air channel to vane air feed, vane airduct with vane air channel
It is logical, to vane air channel air feed.
Preferably, blast cap air supply device is made up of blast cap branch pipe, blast cap air channel and blast cap airduct.Blast cap branch pipe is circumferentially equal
It is even to arrange several.Preferably, each blast cap branch pipe connects through the wall of tower body cone cylinder and the stem of blast cap, or is bent downwardly
It is connected with the bottom of blast cap.It is responsible for equably to each blast cap branch pipe air feed in blast cap air channel.Blast cap airduct is responsible for blast cap air channel
Air feed.
Heat sinter after single roll crusher is broken, vertical cooling machine top is transported by heat sinter conveying device
Portion, enter in vertical cooling machine feed bin, sintering deposit continuous flowing from top to bottom under gravity, by vertical cooling machine material
Storehouse and cloth tube, natural packing carry out countercurrent heat exchange in tower body, with the cooling wind in machine from bottom to top, and sintering deposit temperature is cold
But to after less than 150 DEG C, by the tower body cone cylinder of vertical cooling machine bottom, discharging channel is then discharged to by discharge gate
In (such as bottom chute), then it is discharged to from the end of discharging channel or lower section in cold sinter conveying device, then by cold sintering
Sintering deposit after cooling is transported subsequent processing by ore deposit conveying device.
Cooling gas is in the presence of circulating fan, from vertical cooling machine vane air supply device and blast cap air supply device with one
Fixed pressure is fed in body by vane and blast cap, from bottom to top through the sintering deposit bed of material, and carries out refluent heat with sintering deposit
Exchange.Cooling gas temperature gradually rises after heat exchange, is discharged through sintering deposit charge level in vertical cooling machine tower, forms high warm
Wind.Hot-blast outlet discharge of the high-temperature hot-air through vertical cooling machine top.The high-temperature hot-air of discharge enters follow-up cogeneration
System.
Preferably, the equipment also has self feed back discharge regulatory function.The sintering of respective regions is detected by temperature probe
Ore deposit temperature, after the sintering deposit temperature of some circumferential position of detection reaches cooling effect, it is corresponding just normally to open the region
Tower body cone cylinder below discharge gate, carry out normal discharge, conversely, then mutually reply reduce discharge gate open height or pass
Discharge gate is closed, allows the sintering deposit in the region to cool down a period of time again, after sintering deposit temperature reaches cooling effect, then carries out just
Normal discharge.
The surface toughness of the pelletizing shape sintering deposit of high temperature, once cooling, is adhered to one another, the equipment of prior art
Discharge difficulty is often resulted in, still, equipment of the present utility model solves this problem well.
Typically, the height for the tower body being made up of top cover and tower wall is usually 6-20 rice, preferably 7-18 rice, more preferably 8-15
Rice.The overall diameter of tower body is generally 8-30 rice, preferably 9-27 rice, preferably 10-25 rice, preferably 11-22 rice, more preferably 12-20
Rice.
In this application, the diameter of blast cap is usually 1.5-4 rice, preferably 1.8-3.5 rice, more preferably 2-3 rice, more preferably
2.2-2.8 rice, such as 2.5 meters.
In this application, the diameter of vane or interior diameter are usually 7-26 rice, preferably 8-24 rice, preferably 9-22 rice, preferably
10-20 rice, more preferably 12-15 rice.
The diameter or interior diameter of vane are usually 0.65-0.96 times of the overall diameter of tower body, preferably 0.68-0.94 times, excellent
Select 0.70-0.92 times, more preferably 0.73-0.9 times, more preferably 0.78-0.88 times, more preferably 0.8-0.86 times.
Chute as discharging channel has such as 1 meter of width, 9 meters of height.
Embodiment 1
The height of the tower body being made up of top cover and tower wall of cooler is 9 meters.The overall diameter of tower body is 13 meters.Blast cap it is straight
Footpath is 2.5 meters.The height of tower body cone cylinder 5 is 5.5 meters.The interior diameter of vane is 10.5 meters.
The daily handling ability of sintering deposit is 8650 ton days.The temperature of sintering deposit before into feed bin is 700 DEG C, heat
The hot blast temperature of wind outlet 8 reaches 500 DEG C.The heat of recovery is used to generate electricity, and generated energy is about 35 degree of electricity.
Compared with the central cooler of 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
Lean on, due to better tightness, the hot blast that technology of the present utility model can provide higher temperature is used to produce high-temperature steam, significantly
Improve electricity generation efficiency.
Claims (22)
1. a kind of flashboard unloading type vertical cooling machine, the vertical cooling machine (A1) includes：Feed bin (1), cloth tube (2), by tower body
The tower body that top cover (3), tower wall (4), the tower body cone cylinder (5) below tower wall (4) and bottom of towe (D) are formed, vane (H), blast cap
(M) multiple Discharge outlets (5a) of tower body cone cylinder (5) bottom, are arranged on, and are arranged on tower wall (4) top or tower body top cover
(3) hot-blast outlet (8) on；
Wherein, top cover (3) is fixedly connected with the upper end of tower wall (4), and feed bin (1) is arranged on the top of top cover (3), cloth tube (2)
Upper end be connected with the bottom of feed bin (1), the lower end of cloth tube (2) extend into the lower section of top cover,
Annular spread or the multiple Discharge outlet is presented in surrounding of the multiple Discharge outlet (5a) in tower body cone cylinder (5) bottom
The circumferencial direction of (5a) along tower body cone cylinder (5) bottom is evenly distributed,
The fixed interval (FI) of one week is formed between the bottom of tower wall (4) and the top of tower body cone cylinder (5) as vane (H),
The center of bottom of towe (D) is provided with the blast cap (M) for extending upwardly into tower body inner space, and
Each Discharge outlet (5a) place is correspondingly provided with discharge gate (12), and is provided with discharge in the lower section of discharge gate (12)
Passage (10)；
Wherein：The tower being made up of tower body top cover (3) and tower wall (4), the tower body cone cylinder (5) below tower wall (4) and bottom of towe (D)
The height of body is 4-25 rice.
2. flashboard unloading type vertical cooling machine according to claim 1, it is characterised in that：The discharging channel (10) be with often
The corresponding feeding chute of one Discharge outlet (5a) or the discharging channel (10) are a dump skips of global design.
3. flashboard unloading type vertical cooling machine according to claim 1 or 2, it is characterised in that：The end of discharging channel (10)
End or lower section are provided with cold sinter conveying device (11)；And/or
In the bottom of tower wall (4) or lower section and in the top of tower body cone cylinder (5), further setting tower wall changeover portion (4a).
4. vertical cooling machine according to claim 1 or 2, it is characterised in that the vertical cooling machine (A1) also includes vane and supplied
Wind apparatus (6), the vane air supply device (6) include vane air channel (601) and the vane wind connected on vane air channel (601)
Manage (602), the circular vane (H) in the vane air channel (601) is simultaneously coupled logical.
5. vertical cooling machine according to claim 3, it is characterised in that the vertical cooling machine (A1) also includes vane air feed
Device (6), the vane air supply device (6) include vane air channel (601) and the vane airduct connected on vane air channel (601)
(602), the vane air channel (601) is around the vane (H) and coupled logical.
6. according to the vertical cooling machine described in claim 1,2 or 5, it is characterised in that the vertical cooling machine (A1) also includes blast cap
Air supply device (7), the blast cap air supply device (7) include the blast cap air channel (702) of multiple blast cap branch pipes (701), annular or " C " shape
With the blast cap airduct (703) being connected with blast cap air channel (702), one end and the blast cap air channel (702) of each blast cap branch pipe (701)
Connection and the other end connect with the bottom of blast cap (M) or stem.
7. vertical cooling machine according to claim 3, it is characterised in that the vertical cooling machine (A1) also includes blast cap air feed
Device (7), the blast cap air supply device (7) include multiple blast cap branch pipes (701), annular or " C " shape blast cap air channel (702) and with
The blast cap airduct (703) of blast cap air channel (702) connection, one end of each blast cap branch pipe (701) connects with blast cap air channel (702)
Connected with the other end with the bottom of blast cap (M) or stem.
8. vertical cooling machine according to claim 4, it is characterised in that the vertical cooling machine (A1) also includes blast cap air feed
Device (7), the blast cap air supply device (7) include multiple blast cap branch pipes (701), annular or " C " shape blast cap air channel (702) and with
The blast cap airduct (703) of blast cap air channel (702) connection, one end of each blast cap branch pipe (701) connects with blast cap air channel (702)
Connected with the other end with the bottom of blast cap (M) or stem.
9. according to the vertical cooling machine any one of claim 1,2,5,7 or 8, it is characterised in that under tower wall (4)
Portion is provided with temperature probe (9).
10. vertical cooling machine according to claim 4, it is characterised in that be provided with temperature probe in the bottom of tower wall (4)
(9)。
11. vertical cooling machine according to claim 6, it is characterised in that be provided with temperature probe in the bottom of tower wall (4)
(9)。
12. vertical cooling machine according to claim 9, it is characterised in that：The temperature probe (9) passes for electric thermo-couple temperature
Sensor.
13. the vertical cooling machine according to claim 10 or 11, it is characterised in that：The temperature probe (9) is thermocouple
Temperature sensor.
14. according to the flashboard unloading type vertical cooling machine any one of claim 1,2,5,7,8 or 10-12, its feature
It is：The number of Discharge outlet (5a) is 4-12；And/or
The quantity of blast cap branch pipe (701) is 1-12 roots.
15. flashboard unloading type vertical cooling machine according to claim 4, it is characterised in that：The number of Discharge outlet (5a)
For 4-12；And/or
The quantity of blast cap branch pipe (701) is 1-12 roots.
16. flashboard unloading type vertical cooling machine according to claim 6, it is characterised in that：The number of Discharge outlet (5a)
For 4-12；And/or
The quantity of blast cap branch pipe (701) is 1-12 roots.
17. flashboard unloading type vertical cooling machine according to claim 14, it is characterised in that：The number of Discharge outlet (5a)
For 6-10；And/or
The quantity of blast cap branch pipe (701) is 2-10 roots；Blast cap branch pipe (701) is bent downwardly the bottom for being connected to blast cap (M) or worn
The wall for crossing tower body cone cylinder (5) is connected to blast cap (M) stem.
18. according to claim 1,2,5,7,8,10-12 or the flashboard unloading type vertical cooling machine any one of 15-17,
It is characterized in that：The blast cap (M) includes support frame (M01), hood top cover (M02), multiple taper cover plates (M03) and blast cap wind
To manage (M04), multiple taper cover plates (M03) are successively set on support frame (M01), from top to bottom, the bottom of taper cover plate (M03)
Diameter increases successively；Hood top cover (M02) is arranged on the top of top taper cover plate (M03), and airduct (M04) is arranged on support
The lower section of frame (M01) and it is connected with support frame (M01).
19. flashboard unloading type vertical cooling machine according to claim 4, it is characterised in that：The blast cap (M) includes support
Frame (M01), hood top cover (M02), multiple taper cover plates (M03) and blast cap airduct (M04), multiple taper cover plates (M03) are successively
It is arranged on support frame (M01), from top to bottom, the base diameter of taper cover plate (M03) increases successively；Hood top cover (M02) is set
Put and be arranged on the lower section of support frame (M01) and and support frame in the top of top taper cover plate (M03), airduct (M04)
(M01) connect.
20. flashboard unloading type vertical cooling machine according to claim 6, it is characterised in that：The blast cap (M) includes support
Frame (M01), hood top cover (M02), multiple taper cover plates (M03) and blast cap airduct (M04), multiple taper cover plates (M03) are successively
It is arranged on support frame (M01), from top to bottom, the base diameter of taper cover plate (M03) increases successively；Hood top cover (M02) is set
Put and be arranged on the lower section of support frame (M01) and and support frame in the top of top taper cover plate (M03), airduct (M04)
(M01) connect.
21. flashboard unloading type vertical cooling machine according to claim 18, it is characterised in that：The hood top cover (M02)
For pyramidal structure.
22. flashboard unloading type vertical cooling machine according to claim 13, it is characterised in that：The vertical cooling machine (A1) is also
Including control system (K), control system (K) and vane air supply device (6), blast cap air supply device (7), temperature probe (9), discharge
Gate (12), cold sinter conveying device (11) connection, and control vane air supply device (6), blast cap air supply device (7), thermometric
The operation of probe (9), discharge gate (12), cold sinter conveying device (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621482463.7U CN206959604U (en) | 2016-12-30 | 2016-12-30 | A kind of flashboard unloading type vertical cooling machine |
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| CN201621482463.7U CN206959604U (en) | 2016-12-30 | 2016-12-30 | A kind of flashboard unloading type vertical cooling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059561A (en) * | 2018-09-12 | 2018-12-21 | 王海燕 | A kind of cooler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059561A (en) * | 2018-09-12 | 2018-12-21 | 王海燕 | A kind of cooler |
| CN109059561B (en) * | 2018-09-12 | 2024-03-01 | 王海燕 | Cooling machine |
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