CN107986642A - A kind of swollen pearl preparation facilities and preparation method thereof - Google Patents
A kind of swollen pearl preparation facilities and preparation method thereof Download PDFInfo
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- CN107986642A CN107986642A CN201711270700.2A CN201711270700A CN107986642A CN 107986642 A CN107986642 A CN 107986642A CN 201711270700 A CN201711270700 A CN 201711270700A CN 107986642 A CN107986642 A CN 107986642A
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- furnace slag
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- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000002893 slag Substances 0.000 claims abstract description 57
- 238000005469 granulation Methods 0.000 claims abstract description 40
- 230000003179 granulation Effects 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 238000009825 accumulation Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 230000000694 effects Effects 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 5
- 235000019628 coolness Nutrition 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 239000011490 mineral wool Substances 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 5
- 230000035508 accumulation Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 and at this moment Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
- C04B5/065—Porous slag
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of swollen pearl preparation facilities and preparation method thereof; the device includes molten blast furnace slag flow guiding structure, granulation structure, cooling structure and heat recovery structure; molten blast furnace slag flow guiding structure is used to molten blast furnace slag introducing granulation structure; granulation structure is used to molten blast furnace slag being granulated; cooling structure is used in granulation; molten blast furnace slag is cooled down, heat recovery structure is used to the high-temperature gas produced in granulation being collected heat accumulation.Only graphite crucible and the turntable that blast furnace slag directly contacts in the device, and the only turntable washed away is caused, compared with prepared by current industrial, cost can substantially reduce.The method for preparing swollen pearl prepares swollen pearl using above-mentioned swollen pearl preparation facilities, and due to being produced in closed system, degree of danger can reduce, and producing the pollutants such as slag wool will not be scattered to outside granulation stove, reduce the harm to worker's body.Confined space can reduce noise pollution.
Description
Technical field
The present invention relates to a kind of blast furnace slag processing equipment, and in particular to a kind of swollen pearl preparation facilities and preparation method thereof.
Background technology
The processing mode of blast furnace slag mainly has grain slag method, stacks air-cooled, Granulated Blast Furnace method etc. naturally.But due to grain slag method meeting
Substantial amounts of water is expended, its slag water ratio general 1：6~10, and substantial amounts of steam can be produced, quantity of steam is about 600m3/ t（Slag）, together
When can also produce H2S、S02And S03Deng toxic and harmful gas.Its concentration H2S is 19.23mg/m3, S02For 4.3mg/m3, these have
Malicious pernicious gas forms serious pollution to plant area and air, and stacks air-cooled method naturally and do not only take up a large amount of factory sites, also wastes high
The a large amount of sensible heats of clinker.
Granulated Blast Furnace method is come into being, and not only acts as water-saving, emission reduction, moreover it is possible to certain economic benefit is brought to factory.First
Swollen pearl grindability is close with grain slag, and swollen pearl activity is higher, and the cement for making cement admixture production is higher than the cement produced with grain slag
Go out No. 50, the i.e. high 50kg/cm of compression strength3, swollen pearl is substantially free of water, and production cement is not required to dry.Compared with grain slag, save dry
It is dry to use coal 45kg/t, freight charges 10% or so are saved, the market competitiveness is had more than grain slag when making cement admixture；Second swollen bead surface
Smooth, thermal insulation and sound-proofing are good, surface-active and naturality is strong, water absorption rate is low, and natural grading is good, is manufactured into swollen pearl
Lightweight aggregate, its performance are better than artificial lightweight aggregate haydite, are good lightweight aggregates.Big 300,000 m of slab-type apartment building of swollen pearl concrete is built abroad2,
Ma'an Mountain also builds swollen about 100,000 m of the big slab-type apartment building of pearl concrete2, detection was carried out to the performance of these big slab-type apartment buildings, its intensity and thermal insulation
It is superior to Ceramsite Concrete and Aerated Concrete building.
Current the industrially prepared of Granulated Blast Furnace is produced under conditions of semi-open, and there are following defect for it：1、
The blast furnace slag of melting meets the high-temperature steam that water is formed, and blast furnace slag and the release of the sensible heat of air exchange and allowing to be formed rich in aobvious
Natural cooling, factory all do not recycle these heats the swollen pearl of heat in the air；2nd, swollen pearl meeting is prepared under the conditions of semi-open
Than relatively hazardous, hazard of contaminant worker's health such as generation slag wool, the larger bad control of noise in addition；3rd, required equipment such as slag
Groove, roller are since washing away for high temperature can be more demanding to material so that equipment replacement frequency is fast.
The content of the invention
In view of the above-mentioned problems existing in the prior art, it is an object of the present invention to provide a kind of low to material requirements, life
Produce the low swollen pearl preparation facilities of cost.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of swollen pearl preparation facilities, it is characterised in that：Bag
Include molten blast furnace slag flow guiding structure, granulation structure, cooling structure and heat recovery structure；
Molten blast furnace slag flow guiding structure：Including graphite crucible and pin；
The bottom of the graphite crucible has drainage tube, and the pin is arranged on drainage tube；
Granulation structure：Including granulation stove, motor, shaft, turntable and frequency converter；
The position that the side wall of the granulation stove is top is equipped with observation panel, is granulated the position of the side wall of stove on the lower and is equipped with manhole；
The shaft is arranged in granulation stove；
The turntable is wide at the top and narrow at the bottom, and longitudinal section is trapezoidal structure, and turntable is fixed at the top of shaft；
The top of the observation panel is identical with turntable in the height of vertical direction；
The bottom of the drainage tube is located at the surface of turntable bottom centre；
The bottom of the motor and shaft connects, and drives shaft to axially rotate；
The frequency converter is connected with motor, controls motor speed；
Cooling structure：Including water pump, water-supply-pipe and water valve nozzle；
The water inlet end connection of the water pump and water-supply-pipe, water valve nozzle are installed on the water outlet of water-supply-pipe, the water valve nozzle
Center of the water outlet towards turntable bottom；
Heat recovery structure：Top including exhaust pipe, dirt pocket, outlet side and dirt pocket and the wind conveying pipe of exhaust pipe；It is described
Air blower connects the inlet end of wind conveying pipe, and the outlet side of wind conveying pipe is arranged on the bottom of granulation stove.
As an optimization, the supplementary structure is multiple, and multiple cooling structures are arranged circumferentially along granulation stove.
As an optimization, the cooling structure is multiple, and multiple cooling structures are arranged circumferentially along granulation stove.
As an optimization, the angle of water of the water valve nozzle is adjustable.
As an optimization, the heat recovery structure is multiple, and multiple cooling structures are arranged circumferentially along granulation stove.
It is a further object to provide one kind to recycle waste heat, while reduces to worker's health
The swollen pearl preparation method of risk.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of preparation method of swollen pearl, it is characterised in that
It is as follows using the swollen pearl preparation facilities described in claim 6, preparation process：
S1：Open and adjust frequency converter and motor, shaft (11), which rotates, drives the turntable (9) at the top of shaft to rotate；
S2：Water pump and water valve nozzle are opened, the water scattering angle and water that water valve nozzle sprays are observed by watch window
Whether meet the requirements；If meet just to continue in next step；If being unsatisfactory for just stop motor, water pump, water valve nozzle is debugged,
Until meeting the requirements, then carry out in next step；
S3：Pin is opened, molten blast furnace slag enters the turntable for flowing directly into rotation from graphite crucible, since turntable is in high speed rotation
Turning, molten blast furnace slag can be split off by the effect of this centrifugal force, be granulated the molten drop chilling in the air that flies out, when molten drop circles in the air in the air,
Due to surface tension effects, molten drop forms swollen pearl；
S4：Air blower is started while molten blast furnace slag is poured into and carries out air blast, the closing pin after blast furnace slag pours into completely；S5：
Observe whether molten blast furnace slag is granulated by turntable completely by watch window, need to continue to be granulated if not being granulated completely；Such as
Fruit has been granulated completely, then first switches off the pump, and then closes motor by frequency converter again, turntable is stopped operating, and continues
Use air blower air blast；
S6：Vapor rich in heat wraps up in impurity and enters dirt pocket by exhaust pipe, collects swollen pearl.
Relative to the prior art, the invention has the advantages that：
1st, swollen pearl preparation facilities provided by the invention is locking device, is endangered so as to avoid as far as possible during swollen pearl is prepared
Evil gas is scattered to outside granulation stove.
2nd, swollen pearl preparation facilities provided by the invention, only graphite crucible and the turntable, and make directly contacted with blast furnace slag
Into the only turntable washed away, compared with prepared by current industrial, cost can substantially reduce.
3rd, the method provided by the invention for preparing swollen pearl, is carried out by closing air blast, can achieve the purpose that to recycle heat.
4th, the method provided by the invention for preparing swollen pearl, is produced in closed system, and degree of danger can reduce, production
The pollutants such as raw slag wool will not be scattered to outside granulation stove, reduce the harm to worker's body.Confined space can reduce noise dirt
Dye.
Brief description of the drawings
Fig. 1 is the structure diagram of swollen pearl preparation facilities.
In figure, 1- water pumps, 2- air blowers, 3- dirt pockets, 4- heat accumulations room, 5- watch windows, 6- water valves nozzle, 7- graphite earthenwares
Crucible, 8- pins, 9- turntables, 10- flanges, 11- shafts, 12- manholes.
Embodiment
The present invention is described in further detail below.
In the description of the present invention, it is to be understood that term " on ", " under ", " vertical ", " top ", " bottom ", " interior ",
The orientation or position relationship of instructions such as " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this hair
It is bright and simplify description, rather than instruction or imply that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
Embodiment 1：Referring to Fig. 1, a kind of swollen pearl preparation facilities, including molten blast furnace slag flow guiding structure, granulation structure, cooling
Structure, heat recovery structure and supplementary structure；
Molten blast furnace slag flow guiding structure：Including graphite crucible 7 and pin 8；
The bottom of the graphite crucible 7 has drainage tube, and the pin 8 is arranged on drainage tube.
Granulation structure：Including granulation stove 15, motor 14, shaft 11, turntable 9 and frequency converter 13；
The position that the side wall of the granulation stove 15 is top is equipped with observation panel 5, is granulated the position of the side wall of stove 15 on the lower and is equipped with manhole
12；When it is implemented, it is made of 5 quartz glass of observation panel.
The shaft 11 is arranged in granulation stove 15；
The turntable 9 is wide at the top and narrow at the bottom, and longitudinal section is trapezoidal structure, and turntable 9 is fixed at the top of shaft 11, tool
Body can be fixed at the top of shaft 11 by flange 10；The rotation of motor can drive shaft, pass through method at the top of shaft
Orchid 10 secures turntable, and turntable is to increase the contact area of clinker and turntable and the conveniently molten blast furnace slag in turntable
Fly out from turntable open top, the swollen pearl obtained by turntable granulated bf slag, particle is uniform, good sphericity.In addition, by turning
Disk granulated bf slag liquid prepares swollen pearl, can be controlled by adjusting blast furnace slag fluid flow, disk diameter and rotating speed size
The size of pelleting, meets production needs, and the rotation of shaft can drive the turntable at the top of shaft.
The top of the observation panel 5 is identical with turntable 9 in the height of vertical direction；
The bottom of the drainage tube is located at the surface of 9 bottom centre of turntable；
The motor 14 is connected with the bottom of shaft 11, drives shaft 11 to axially rotate, when it is implemented, motor 14 is logical
The bottom that electric wire is crossed with shaft 11 is connected.
The frequency converter 13 is connected with motor 14, controls 14 rotating speed of motor；
Cooling structure：Including water pump 1, water-supply-pipe and water valve nozzle 6；The water pump 1 is connected with the water inlet end of water-supply-pipe, water valve spray
First 6 are installed on the water outlet of water-supply-pipe, the center of the water outlet of the water valve nozzle 6 towards 9 bottom of turntable；
When it is implemented, the cooling structure is multiple, and multiple cooling structures are arranged circumferentially along granulation stove 15.The water
The angle of water of valve nozzle 6 is adjustable.Specific adjustable range is -90 ~ 0 °.
Heat recovery structure：Including exhaust pipe, dirt pocket 3 and heat accumulation room 4；The inlet end of the exhaust pipe is arranged on granulation
The top of stove 15, the outlet side of exhaust pipe are connected with dirt pocket 3, and dirt pocket 3 is connected with heat accumulation room 4.The heat recovery structure
To be multiple, and multiple cooling structures are arranged circumferentially along granulation stove 15.
Supplementary structure：Including air blower 2 and wind conveying pipe；The air blower 2 connects the inlet end of wind conveying pipe, and wind conveying pipe goes out
Gas end is arranged on the bottom of granulation stove 15.
Embodiment 2：A kind of preparation method of swollen pearl, the swollen pearl preparation facilities described in using embodiment 1, preparation process is such as
Under：
S1：Open and adjust frequency converter 13 and motor 14, shaft 11, which rotates, drives the turntable 9 at the top of shaft to rotate；Frequency converter
And be placed in outside granulation stove, it is convenient to adjust, open and close motor.
S2：Water pump 1 and water valve nozzle 6 are opened, the water scattering angle that water valve nozzle 6 sprays is observed by watch window
Whether met the requirements with water；If meet just to continue in next step；If being unsatisfactory for just stop motor 14, water pump 1, debugging
Water valve nozzle 6, until meeting the requirements, then carries out in next step.
S3：Pin 8 is opened, molten blast furnace slag enters the turntable 9 for flowing directly into rotation from graphite crucible 7, since turntable exists
Rotate at a high speed, molten blast furnace slag can be split off by the effect of this centrifugal force, be granulated the molten drop chilling in the air that flies out, and molten drop flies in the air
During Xiang, due to surface tension effects, molten drop forms swollen pearl.
Temperature is up to 1450 DEG C of blast furnace slag while turntable 9 are contacted, and blast furnace slag is cooled down by water, and water evaporation of being heated becomes
Water vapour makes to form the unstable gas phase layer with certain pressure between blast furnace slag and water；Under the promotion of air pressure, part is steamed
Vapour overcomes slag surface tension force and the obstruction of internal particle to enter slag, and at this moment, gas content greatly increases in slag, much super
The solubility of slag under normal pressure to gas is crossed, internal gas cannot be present in slag in dissolved form, and can only be in slag
Interior to be contained therein in the form of bubble, at the same time since turntable is rotating at a high speed, molten blast furnace slag is acted on by this centrifugal force
It can be split off, be granulated and fly out molten drop chilling in the air along the tangential direction of turntable, viscosity coefficient of dross steeply rises, and surface is solid rapidly
Change so that considerable bubble consolidates inside slag.When molten drop circles in the air in the air, due to surface tension effects, molten drop
Form swollen pearl, bubble formation micropore in slag.
S4：Air blower 2 is started while molten blast furnace slag is poured into and carries out air blast, the purpose one of air blast is conveniently to be changed
Heat；Second, air blast can give one upward buoyancy of molten drop that granulation falls, slow down molten drop due to being hurtled down by gravity,
Make molten drop granulation stove it is aerial stay for some time, this hardness for not only contributing to increase swollen pearl and can also be conducive to more
Swap out some heat, and probably at 900 DEG C, it can exchange heat the skyborne temperature of molten drop with air, and last swollen pearl can drop to granulation
The lower surface of stove.The closing pin 8 after blast furnace slag pours into completely；Prevent hot-air from graphite crucible passage be diffused into it is exterior so as to
Recuperation of heat is caused to fail.
S5：Observe whether molten blast furnace slag is granulated by turntable 9 completely by watch window 5, if not being granulated completely
It need to continue to be granulated；If be granulated completely, 1 is first switched off the pump, reduce the water content of swollen pearl to the greatest extent, not so the later stage will be to swollen
Pearl carries out drying and wastes energy, then closes motor 14 by frequency converter 13 again, turntable 9 is stopped operating, be continuing with
2 air blast of air blower.
S6：Vapor rich in heat wraps up in impurity and enters dirt pocket 3 by exhaust pipe, removes vapor and other impurity,
Then heat accumulation room 4 is entered by pipeline again, so as to achieve the purpose that to recycle heat.
S7：Air blower is closed, stops air blast.
S8：Manhole 12 is opened, collects swollen pearl.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of technical solution of the present invention, it should all cover at this
Among the right of invention.
Claims (7)
- A kind of 1. swollen pearl preparation facilities, it is characterised in that：Including molten blast furnace slag flow guiding structure, granulation structure, cooling structure and Heat recovery structure；Molten blast furnace slag flow guiding structure：Including graphite crucible（7）And pin（8）；The graphite crucible（7）Bottom there is drainage tube, the pin（8）It is arranged on drainage tube；Granulation structure：Including being granulated stove（15）, motor（14）, shaft（11）, turntable（9）And frequency converter（13）；The granulation stove（15）The top position of side wall be equipped with observation panel（5）, it is granulated stove（15）Side wall position on the lower set There is manhole（12）；The shaft（11）It is arranged on granulation stove（15）It is interior；The turntable（9）To be wide at the top and narrow at the bottom, and longitudinal section is trapezoidal structure, turntable（9）It is fixed at shaft（11）'s Top；The observation panel（5）Top vertical direction height and turntable（9）It is identical；The bottom of the drainage tube is located at turntable（9）The surface of bottom centre；The motor（14）With shaft（11）Bottom connection, drive shaft（11）Axially rotate；The frequency converter（13）With motor（14）Connection, controls motor（14）Rotating speed；Cooling structure：Including water pump（1）, water-supply-pipe and water valve nozzle（6）；The water pump（1）It is connected with the water inlet end of water-supply-pipe, water valve nozzle（6）Installed in the water outlet of water-supply-pipe, the water valve Nozzle（6）Water outlet towards turntable（9）The center of bottom；Heat recovery structure：Including exhaust pipe, dirt pocket（And heat accumulation room 3)（4)；The inlet end of the exhaust pipe is arranged on granulation stove（15）Top, the outlet side of exhaust pipe and dirt pocket（3) connect, remove Dirt room（3) with heat accumulation room（4) connect.
- 2. swollen pearl preparation facilities as claimed in claim 1, it is characterised in that：Further include supplementary structure；Supplementary structure：Including air blower（2）And wind conveying pipe；The air blower（2）The inlet end of wind conveying pipe is connected, the outlet side of wind conveying pipe is arranged on granulation stove（15）Bottom.
- 3. swollen pearl preparation facilities as claimed in claim 2, it is characterised in that：The supplementary structure is multiple, and multiple coolings Structure edge granulation stove（15）It is arranged circumferentially.
- 4. such as the swollen pearl preparation facilities of claim 1-3 any one of them, it is characterised in that：The cooling structure is multiple, and Multiple cooling structures edge granulation stoves（15）It is arranged circumferentially.
- 5. swollen pearl preparation facilities as claimed in claim 4, it is characterised in that：The water valve nozzle（6）Angle of water it is adjustable.
- 6. swollen pearl preparation facilities as claimed in claim 5, it is characterised in that：The heat recovery structure is multiple and multiple Cooling structure edge granulation stove（15）It is arranged circumferentially.
- 7. a kind of preparation method of swollen pearl, it is characterised in that using the swollen pearl preparation facilities described in claim 6, preparation process It is as follows：S1：Open and adjust frequency converter（13）And motor（14）, shaft (11), which rotates, drives the turntable (9) at the top of shaft to turn It is dynamic；S2：Open water pump（1）And water valve nozzle（6）, water valve nozzle is observed by watch window（6）The water angle of scattering of ejection Whether degree and water meet the requirements；If meet just to continue in next step；If it is unsatisfactory for the motor that just stops（14）, water pump（1） Come, debug water valve nozzle（6）, until meeting the requirements, then carry out in next step；S3：Open pin（8）, molten blast furnace slag is from graphite crucible（7）It is middle to enter the turntable for flowing directly into rotation（9）, due to turntable Rotated in high speed, molten blast furnace slag can be split off by the effect of this centrifugal force, be granulated the molten drop chilling in the air that flies out, and molten drop is in the air When circling in the air, due to surface tension effects, molten drop forms swollen pearl；S4：Air blower is started while molten blast furnace slag is poured into（2）Carry out air blast, the closing pin after blast furnace slag pours into completely （8）；S5：Pass through watch window（5）Whether to observe molten blast furnace slag completely by turntable（9）Granulation, if not being granulated completely It need to continue to be granulated；If be granulated completely, first switch off the pump（1）, then pass through frequency converter again（13）To close motor （14）, make turntable（9）Stop operating, be continuing with air blower（2）Air blast；S6：Vapor rich in heat wraps up in impurity and enters dirt pocket by exhaust pipe（3) vapor and other impurity, are removed, so Heat accumulation room is entered by pipeline again afterwards（4)；S7：Air blower is closed, stops air blast；S8：Open manhole（12）, collect swollen pearl.
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| CN201711270700.2A CN107986642A (en) | 2017-12-05 | 2017-12-05 | A kind of swollen pearl preparation facilities and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457064A (en) * | 2018-11-15 | 2019-03-12 | 重庆大学 | A method of processing titanium-containing blast furnace slag prepares hydrogen |
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|---|---|---|---|---|
| JPS61243104A (en) * | 1985-04-17 | 1986-10-29 | Nippon Jiryoku Senko Kk | Method for producing steel shot material |
| JP2000073109A (en) * | 1998-08-30 | 2000-03-07 | Shinkoo Flex:Kk | Production of granular body of magnesium or magnesium alloy |
| CN103924012A (en) * | 2014-05-05 | 2014-07-16 | 重庆大学 | Device and method for recovering residual heat by dry-process granulation of metallurgical slag |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457064A (en) * | 2018-11-15 | 2019-03-12 | 重庆大学 | A method of processing titanium-containing blast furnace slag prepares hydrogen |
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Application publication date: 20180504 |