CN209537529U - A kind of high-temperature slag roller drains method granulator - Google Patents
A kind of high-temperature slag roller drains method granulator Download PDFInfo
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- CN209537529U CN209537529U CN201822175584.2U CN201822175584U CN209537529U CN 209537529 U CN209537529 U CN 209537529U CN 201822175584 U CN201822175584 U CN 201822175584U CN 209537529 U CN209537529 U CN 209537529U
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- granulation
- heat exchange
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- 239000002893 slag Substances 0.000 title claims abstract description 231
- 238000005469 granulation Methods 0.000 claims abstract description 68
- 230000003179 granulation Effects 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims description 24
- 238000010791 quenching Methods 0.000 claims description 19
- 230000000171 quenching Effects 0.000 claims description 19
- 230000001105 regulatory Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 8
- 239000000110 cooling liquid Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 5
- 239000003818 cinder Substances 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000002826 coolant Substances 0.000 description 15
- 101710006852 bath-40 Proteins 0.000 description 14
- 239000002918 waste heat Substances 0.000 description 13
- 239000000779 smoke Substances 0.000 description 9
- 238000010227 cup method (microbiological evaluation) Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000003517 fume Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 210000003128 Head Anatomy 0.000 description 1
- -1 Illustratively Substances 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007908 dry granulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model discloses a kind of high-temperature slag rollers to drain method granulator, belongs to blast furnace cinder granulated processed technical field, solves the problems, such as that slag treatment energy consumption is big, processing equipment requirement is high and slag particle partial size is non-uniform in the prior art.The granulator of the utility model includes that molten bath, pumping slag roller and driving motor, the feed inlet in molten bath are connect with the slag mouth of a river of slag tundish, and the both ends for taking out slag roller are connect with molten bath side wall support rotating, and the output shaft of driving motor is connect with slag roller is taken out；The roll surface for taking out slag roller is in contact with the slag liquid level in molten bath.The granulator of the utility model can be used for blast furnace cinder granulation.
Description
Technical field
The utility model relates to a kind of blast furnace cinder granulated processed technologies more particularly to a kind of high-temperature slag roller to drain method grain
Change device.
Background technique
Molten slag is the high-temperature liquid furnace slag generated in a kind of high-temperature smelting process, can be used for building materials, cement industry
Additive.
Currently, molten slag processing method mainly has water quenching, revolving cup method, drum process and wind quenching method.
Water quenching can guarantee that granulated slag has the characteristics that granularity is small and vitreum content is high, and still, high-temperature slag is aobvious
Heat consumes a large amount of new water without utilizing and needing, and since the coolant-temperature gage after cooling slag is less than 70 DEG C, UTILIZATION OF VESIDUAL HEAT IN is difficult, mesh
Preceding prior art poor recovery effect, low efficiency.
Revolving cup method is to be granulated using the revolving cup of variable-ratio to slag, and slag is flow in revolving cup by slag chute or slag runner
The heart, slag is granulated in the outer of revolving cup under the action of the centrifugal force, still, under high temperature, high speed rotation, to the resistance to of revolving cup material
High temperature, wearability and mechanical stability requirements are high, and dynamic balance property is poor, and revolving cup is caused easily to damage, it is difficult to realize industry
Metaplasia produces.
Drum process is cylinder surface or the single roller upper surface for allowing slag to flow into two reverse rotations from top, in centrifugal force
Granulation is thrown away under effect, still, high-temperature liquid state slag stream is usually uncontrollable, causes slag particle partial size uneven, or even clinker occur, difficult
In content of the guarantee as glass phase necessary to cement raw material (amorphous).
Wind quenching method is the kinetic energy using compressed air, and liquid slag is dispelled, is granulated and is cooled down.But using compressed air,
Power consumption is too big, and equipment volume bulky complex.
Summary of the invention
In view of above-mentioned analysis, the utility model is intended to provide a kind of high-temperature slag roller and drains method granulator, solves existing
Slag treatment energy consumption is big in technology, processing equipment requires the high and non-uniform problem of slag particle partial size.
The purpose of this utility model is mainly achieved through the following technical solutions:
The utility model provides a kind of high-temperature slag roller and drains method granulator, including molten bath, takes out slag roller and driving motor,
The feed inlet in molten bath is connect with the slag mouth of a river of slag tundish, and the both ends for taking out slag roller are connect with molten bath side wall support rotating, is driven
The output shaft of dynamic motor is connect with slag roller is taken out；The roll surface for taking out slag roller is in contact with the slag liquid level in molten bath.
In a kind of possible design, granulator further include granulation room, heat exchange unit, granulated slag storage element and with grain
Change the air blower that room is connected with heat exchange unit；The discharge port in molten bath with granulation room feed inlet connect, be granulated room discharge port and
Heat exchange unit connection；The discharge port of heat exchange unit is connect with granulated slag storage element；It is evenly arranged on the side wall of granulation room multiple
Air-blast nozzle, air-blast nozzle are connect with air blower.
In a kind of possible design, heat exchange unit includes shaft, the multiple stirring blades and the drive that are arranged in shaft
The stirring motor of turn axis rotation, multiple stirring blades are twist arranged.
In a kind of possible design, granulated slag storage element includes finished product storage warehouse and slag storage warehouse of quenching, slag of quenching storage
The discharge port in storehouse is connected to the connecting line of air blower and granulation room, the feeding inlet of finished product storage warehouse and the discharge port of heat exchange unit
Connection.
In a kind of possible design, air blower is connect by granulation blast pipe with granulation room, and granulation blast pipe is equipped with
It is granulated air blast regulating valve；Air blower is connect by the air hose that exchanges heat with heat exchange unit, and heat exchange air hose is equipped with heat exchange air blast regulating valve.
In a kind of possible design, the roll surface for taking out slag roller is machined with the groove of fine uniform arrangement.
In a kind of possible design, the shape of groove is rectangle, square, circle, ellipse or diamond shape.
In a kind of possible design, taking out slag unit further includes the scum board being in contact with the roll surface for taking out slag roller, for scraping
Except the solids for taking out adhesion on slag roller roll surface.
In a kind of possible design, granulator further includes the level sensing for measuring the slag liquid level in molten bath
Device.
In a kind of possible design, takes out in the inside of slag roller and the cooling wall of granulation room and be passed through circulating cooling liquid.
Compared with prior art, the utility model one of at least has the advantages that:
A) high-temperature slag roller provided by the utility model is drained in method granulator, takes out the slag liquid level phase of slag roller and molten bath 40
Contact, the quick rotation for taking out slag roller can throw away the slag in molten bath along a tangential direction, to realize slag granulating.Due to
It takes out slag roller and uses both ends supporting way, the mode of difference and the single-ended support of revolving cup method, structural stability is good, and the service life is long, Yi Wei
Shield, yield is big, is easy to realize industrial production；Meanwhile existing revolving cup method and drum process using slag stream from revolving cup/roller
Granulation working face is directly arrived in top, there are the non-uniform problem of slag flow distribution, it is uneven so as to cause slag particle granularity the problems such as, into
And the vitreum content and product qualification rate of granulated slag are influenced, and it is from the roll surface for taking out slag roller that roller provided by the utility model, which takes out method,
Lower section contacts granulation with slag liquid level, and roller is taken out method liquid level and is easier to control, and so as to guarantee granulated stability, realizes granulation
Vitreum content is greater than 90% in slag, and the granulation qualification rate of granulated slag is greater than 95%, guarantees that dry granulation slag following resource is answered
Quality.
B) high-temperature slag roller provided by the utility model drains method granulator for energy consumption, uses two due to taking out slag roller
Supporting way is held, under the conditions of same treatment amount (45t/h), drum process driving motor installed capacity 25kW, and revolving cup method and roller are taken out
Method energy consumption is substantially close to, driving motor installed capacity < 10kW, and wind quenching method energy consumption is higher, it is thus evident that roller provided by the utility model
The energy consumption of pumping method is lower.
Other feature and advantage of the utility model will illustrate in the following description, also, partial from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Structure specifically indicated in the written description, claims, and drawings is achieved and obtained.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitations of the present invention, entire
In attached drawing, identical reference symbol indicates identical component.
Fig. 1 is the structural schematic diagram that the high-temperature slag roller that the utility model embodiment one provides drains method granulator；
Fig. 2 is that the high-temperature slag roller that the utility model embodiment one provides drains the knot that cooling unit is granulated in method granulator
Structure schematic diagram；
Fig. 3 is drained for the high-temperature slag roller that the utility model embodiment one provides and is granulated bowing for cooling unit in method granulator
View；
Fig. 4 is that the high-temperature slag roller that the utility model embodiment one provides drains the knot that room, nozzle are granulated in method granulator
Structure schematic diagram.
Appended drawing reference:
1- smelting furnace；2- slag ditch；3- flashboard；4- stopper；5- slag tundish；6- takes out slag roller；7- air-blast nozzle；8- granulation
Room；9- hot material discharge valve；10- shaft；11- stirring blade；12- cold burden discharge valve；13- is granulated fume pipe；14- conveyer belt；15-
It is granulated air blast regulating valve；16- is granulated blast pipe；17- heat exchange fume pipe；18- heat exchange smoke regulating valve；19- heat exchange air blast is adjusted
Valve；20- heat exchange air hose；21- air blower；22- flue gas flow regulating valve；23- recycles air hose；24- finished product storage warehouse；25- first
Deduster；26- waste heat boiler；The second deduster of 27-；28- air-introduced machine；29- chimney；30- circulation；31- steam turbine；
32- generating set；33- liquid level sensor；34- scum board；The 35- slag mouth of a river；36- fulcrum bearing；37- driving motor；38- quenches slag
Storage warehouse；39- cold flow regulating valve；The molten bath 40-；41- is granulated room water outlet；42- is granulated room water inlet.
Specific embodiment
Specifically describe the preferred embodiment of the utility model with reference to the accompanying drawing, wherein attached drawing constitutes the utility model
A part, and be used to illustrate the principles of the present invention together with the embodiments of the present invention.
Embodiment one
It present embodiments provides a kind of high-temperature slag roller and drains method granulator, referring to Fig. 1 to Fig. 4, including take out slag unit, grain
Change cooling unit, heat exchange unit and granulated slag storage element, takes out slag unit and include molten bath 40 (being built by resistance to material), take out slag roller
6 and driving motor 37, granulation cooling unit includes the air blower 21 for being granulated room 8 and connecting with granulation room 8 and heat exchange unit.Its
In, the feed inlet in molten bath 40 is connect with the slag mouth of a river 35 of slag tundish 5, is taken out the both ends of slag roller 6 by fulcrum bearing 36 and is melted
The rotation connection of 40 side wall support of pond, the output shaft of driving motor 37 are connect with slag roller 6 is taken out, and pumping 6 both ends of slag roller are equipped with rotation and connect
Head and sealing ring, the roll surface for taking out slag roller 6 are in contact with the slag liquid level in molten bath 40, discharge port and the granulation room 8 in molten bath 40
The discharge port of feed inlet connection, granulation room 8 is connect by hot material discharge valve 9 with heat exchange unit, and the discharge port of heat exchange unit passes through
Cold burden discharge valve 12 is connect with granulated slag storage element.
When implementation, about 1480 DEG C of high-temperature slags are released from smelting furnace 1 enters slag ditch 2, adjusts high-temperature slag by flashboard 3
Flow, slag travels further into slag tundish 5, and the slag stream of slag tundish 5 is controlled by stopper 4, and slag stream passes through in slag
Between packet 5 the slag mouth of a river 35 enter molten bath 40 in, air blower 21 to granulation room 8 and heat exchange unit in be blown into cooling medium, drive
37 frequency control of motor driving is taken out slag roller 6 and is quickly rotated, and slag speed is taken out in control, the slag in molten bath 40 by pumping slag roller 6 tangentially
Direction is quickly thrown away, into granulation room 8 in exchange heat with cooling medium, be quickly cooled to phase transition temperature or less (700 DEG C~
900 DEG C), it completes slag and is tentatively granulated, obtain preliminary granulated slag；Hot material discharge valve 9 is opened, preliminary granulated slag enters heat exchange unit
Interior further cooling obtains finished product granulated slag (about 100 DEG C), opens cold burden discharge valve 12, finished product granulated slag can be by defeated
It send band 14 to be delivered to granulated slag storage element to be stored, to complete entire granulation.
Compared with prior art, high-temperature slag roller provided by the utility model is drained in method granulator, takes out slag roller 6 and molten bath
40 slag liquid level is in contact, and the quick rotation for taking out slag roller 6 can throw away the slag in molten bath along a tangential direction, to realize
Slag granulating.Both ends supporting way, the mode of difference and the single-ended support of revolving cup method, stable structure are used due to taking out slag roller 6
Property is good, and the service life is long, and easy to maintain, yield is big, is easy to realize industrial production；Meanwhile existing revolving cup method and drum process using
Slag stream is from revolving cup/roller top directly to granulation working face, and there are the non-uniform problems of slag flow distribution, so as to cause slag particle grain
The problems such as uneven is spent, and then influences the vitreum content and product qualification rate of granulated slag, and roller provided by the utility model is taken out
Method is to contact granulation with slag liquid level below the roll surface for taking out slag roller 6, and roller is taken out method liquid level and is easier to control, so as to guarantee grain
The stability of change realizes that vitreum content is greater than 90% in granulated slag, and the granulation qualification rate of granulated slag is greater than 95%, guarantees dry method
The quality of granulated slag following resourceization application.
In addition, using both ends supporting way, same treatment amount (45t/h) condition due to taking out slag roller 6 for energy consumption
Under, drum process driving motor installed capacity 25kW, and revolving cup method and roller take out method energy consumption substantially close to, driving motor installed capacity <
10kW, wind quenching method energy consumption are higher, it is thus evident that the energy consumption that roller provided by the utility model takes out method is lower.
The slag in molten bath 40 is smoked for the ease of taking out slag roller 6, the roll surface of pumping slag roller 6 can be machined with multiple tiny
The groove of even arrangement, the roll surface for taking out slag roller 6 enter in bath surface, and slag can enter in above-mentioned groove, when roll surface leaves slag
When liquid level, groove will drive its internal slag and be detached from slag liquid level, take out the slag in molten bath 40 consequently facilitating taking out slag roller 6
It rises.Illustratively, the shape of above-mentioned groove can be rectangle, square, circle, ellipse, diamond shape or other irregular shapes
Shape, it should be noted that in practical applications, can be granulated by adjusting the shape and size of groove further to adjust finished product
Slag size and shape.
In order to reduce the temperature for taking out slag roller 6, improves and take out slag efficiency, it is cold that the inside of pumping slag roller 6 can be passed through pumping slag roller circulation
But liquid, the inside for taking out slag roller 6 are equipped with the coolant flow channel for taking out slag roller circulating cooling liquid, and pumping 6 both ends of slag roller open up takes out slag roller accordingly
Water inlet and take out slag roller water outlet, take out slag roller water inlet and pumping slag roller water outlet respectively with circulating cooling water supplying unit (in figure not
Show) connection.During taking out slag, the interior of pumping slag roller 6 can be effectively reduced by being passed through the pumping slag roller coolant liquid inside pumping slag roller 6
Portion and surface temperature reduce the solids in slag and stick in the problem of taking out 6 roll surface of slag roller, improve the pumping slag efficiency for taking out slag roller 6.
Similarly, it is contemplated that the solids in slag inevitably sticks on the roll surface for taking out slag roller 6, once solid
The cumulant of object is excessive, will affect the uniformity of the working efficiency and granulated slag of taking out slag roller 6, and even resulting in pumping slag roller 6 can not
Work, therefore, the scum board 34 that above-mentioned pumping slag unit can also be in contact with the roll surface for taking out slag roller 6, for striking off pumping slag in time
Solids on 6 roll surface of roller, avoids the cumulant of solids excessive, guarantee take out slag roller 6 working efficiency and granulated slag it is equal
Even property.
It, can be in the cooling of granulation room 8 in order to avoid the slag entered in granulation room 8 sticks on the inner wall of granulation room 8
Granulation room circulating cooling liquid is passed through in wall, that is to say, that granulation room 8 can be set to sandwich, preferably cast iron lining plate, can be with
Understand, is granulated on the liner plate of room 8 and needs to be arranged granulation room water inlet 42 and granulation room water outlet 41, be granulated room water inlet 42
It is connect respectively with circulating cooling water supplying unit (not shown) with granulation room water outlet 41.In granulation, it is passed through granulation
Circulating cooling liquid in 8 cooling wall of room can be effectively reduced the inner wall temperature of granulation room 8, reduce and enter melting in granulation room 8
Slag sticks in the problem on the inner wall of granulation room 8.
In order to guarantee the uniformity for the granulation cooling medium being passed through in granulation room 8, being granulated on the side wall of room can be equal
The even multiple air-blast nozzles 7 of arrangement, air-blast nozzle 7 are connect with air blower 21, and air blower 21 passes through multiple air-blast nozzles 7 to granulation room
The cooling medium being uniformly blown into 8.
In view of the liquid level in molten bath 40 will affect the size, shape and uniformity of finished product granulated slag, therefore, above-mentioned pumping
Slag unit can also include the liquid level sensor 33 for measuring the slag liquid level in molten bath 40, pass through liquid level sensor 33
The slag liquid level in molten bath 40 is detected, the executing agency of stopper 4 is fed back to, slag is controlled by the up and down motion of stopper 4
Slag in tundish 5 enters the flow in molten bath, and then adjusts the slag liquid level in molten bath 40.In this way, passing through slag stream
Amount control, liquid level detection and Rotating speed measring；The roll surface height for taking out slag roller 6 couples tune with slag liquid level intelligent Synchronization
Control；The speed of slag roller 6 passes through 37 variable frequency adjustment of driving motor；The granulated slag granularity obtained is acquired and analyzed by figure and is divided
Cloth, Real-time Feedback adjust technological parameter.
It quenches slag efficiency to improve granulation, above-mentioned granulated slag storage element may include finished product storage warehouse 24 and slag storage of quenching
The discharge port in storehouse 38, slag storage warehouse 38 of quenching is connected to, finished product with the connecting line (granulation blast pipe 16) of air blower 21 and granulation room 8
The feeding inlet of storage warehouse 24 and the discharge port of heat exchange unit connect；Granulated slag is mixed with cooling medium, be then blown into granulation room 8 into
Row is granulated slag of quenching, wherein and the slag mode of quenching of cooling medium is with wind quenching slag, and the slag mode of quenching of granulated slag is slag of being quenched with slag, due to
The density of cooling medium is small, and specific heat capacity is small, and the density of granulated slag is big, and specific heat capacity is big, the double methods of quenching combined using two ways
The flow of cooling medium can not only be reduced, additionally it is possible to so that slag is rapidly solidificated into grain, improve slag efficiency of quenching.
In view of the temperature of low-temperature flue gas is usually above the temperature of air, in order to single to granulation room 8 and heat exchange is blown into
The temperature of cooling medium in member is adjustable, and the air inlet of air blower 21 can also connect with cold wind feed unit (not shown)
Connect, the connecting line (circulation air hose 23) of air-introduced machine 28 and air blower 21 is equipped with flue gas flow regulating valve 22, air-introduced machine 28 with
Cold flow regulating valve 39 is additionally provided on the connecting line of cold wind feed unit.Pass through the adjustable drum of flue gas flow regulating valve 22
Enter the flue gas flow in air blower 21, by the adjustable cold flow blasted in air blower 21 of cold flow regulating valve 39,
Since flue gas is different from the temperature of cold wind, so as to adjust blast the cooling medium in air blower 21 (flue gas and cold wind it is mixed
Close gas) temperature, and then adjust granulation room 8 and heat exchange unit in cooling velocity.
Illustratively, cold wind can be air and/or CO2, wherein CO2Heat content is bigger than air, and utilizes its asymmetric point
The thermal radiation absorption and emission characteristics of sub- gas strengthen gas-solid heat exchange；Simultaneously as flue gas can recycle in above-mentioned granulation system
It uses, so as to reduce CO2Dosage and discharge amount.
It is equally possible that the cooling velocity of granulation room 8 and heat exchange unit is adjusted by the flow for adjusting cooling medium,
Illustratively, air blower 21 can be connect by granulation blast pipe 16 with granulation room 8, and granulation blast pipe 16 is equipped with granulation air blast
Regulating valve 15；Air blower 21 can be connect by the air hose 20 that exchanges heat with heat exchange unit, and heat exchange air hose 20 is equipped with heat exchange air blast tune
Save valve 19.
Illustratively, above-mentioned heat exchange unit use strength mixing stirring structure, specifically, may include shaft 10,
The stirring motor (not shown) for multiple stirring blades 11 and drive shaft 10 rotation being arranged in shaft 10, it is multiple to stir
It mixes blade 11 twist to arrange, the surface of stirring blade 11 uses antifriction alloy built-up welding.Using the above structure, preliminary granulated slag
It is stirred blade 11 to raise, the heat transfer between preliminary granulated slag and cooling medium can be promoted, temperature is down to about 100 DEG C, is made
Preliminary granulated slag is obtained further to cool down.
It can also include waste heat recovery unit in order to improve the waste heat recovery rate of above-mentioned granulator, granulation room 8
The exhanst gas outlet of exhanst gas outlet and heat exchange unit is connect with waste heat recovery unit respectively.In this way, can be with by waste heat recovery unit
Effectively recycling is granulated the waste heat in room 8 and heat exchange unit in generated flue gas.
Specifically, above-mentioned waste heat recovery unit includes sequentially connected first deduster 25, waste heat boiler 26, second removes
The outlet flue of dirt device 27 (for example, bag filter) and air-introduced machine 28, granulation room 8 passes through granulation fume pipe 13 and the first deduster
The outlet flue of 25 smoke inlet connection, heat exchange unit is connect by the fume pipe 17 that exchanges heat with the smoke inlet of the first deduster 25.This
Sample, the high-temperature flue gas for being granulated room 8 and heat exchange unit generation is mixed first, by 25 preliminary dust removal of the first deduster, dedusting
Mixed flue gas afterwards is passed through waste heat boiler 26, and the water in waste heat boiler 26 and mixed flue gas carry out heat exchange, absorbs mixed flue gas
In heat generate overheat or saturated vapor, pushing turbine 31 rotates, and using generating set 32 by the kinetic energy of steam turbine 31
Electric energy is converted to, realizes power generation；Condensed water can be delivered to waste heat boiler 26 by circulation 30 in steam turbine 31
It recycles；After the dust in the second deduster 27 further removal flue gas, temperature can drop mixed gas after cooling
To 100~120 DEG C, low-temperature flue gas is obtained, low-temperature flue gas can be discharged from chimney 29, it can be achieved that reaching under the action of air-introduced machine 28
Mark discharge.Using above-mentioned waste heat recovery unit, sensible heat (55~60kgce/t- of high-temperature slag can be recycled to the greatest extent
Slag), Exposure degree rate avoids the new water consumption of current high-temperature slag water quenching ton slag at 0.8t~1t tons 75% or more,
Economic, society with higher and environmental benefit.
In order to adjust the exhaust smoke level of heat exchange unit, heat exchange fume pipe 17 is equipped with heat exchange smoke regulating valve 18, passes through heat exchange
The exhaust smoke level of the adjustable heat exchange unit of smoke regulating valve 18, and then adjust the flow and temperature of mixed flue gas.
From the point of view of environmental protection, in order to reduce the smoke discharge amount of above-mentioned granulator, the gas vent of air-introduced machine 28 can
To be connect by recycling air hose 23 with the air inlet of air blower 21.In this way, the high-temperature flue gas that granulation room 8 and heat exchange unit generate,
The low-temperature flue gas obtained after the cooling of waste heat boiler 26 can be blown into granulation room 8 by air blower 21 as cooling medium and change
Hot cell realizes recycling for flue gas, reduces the smoke discharge amount of above-mentioned granulator.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (10)
1. a kind of high-temperature slag roller drains method granulator, which is characterized in that including molten bath, slag roller and driving motor are taken out, it is described molten
The feed inlet in pond is connect with the slag mouth of a river of slag tundish, and the both ends for taking out slag roller are connect with molten bath side wall support rotating,
The output shaft of the driving motor is connect with slag roller is taken out；
The roll surface for taking out slag roller is in contact with the slag liquid level in molten bath.
2. high-temperature slag roller according to claim 1 drains method granulator, which is characterized in that the granulator further includes grain
Change room, heat exchange unit, granulated slag storage element and the air blower connecting with granulation room and heat exchange unit；
The discharge port in the molten bath is connect with the feed inlet of granulation room, and the discharge port of the granulation room is connect with heat exchange unit；Institute
The discharge port for stating heat exchange unit is connect with granulated slag storage element；
Multiple air-blast nozzles are evenly arranged on the side wall of the granulation room, the air-blast nozzle is connect with air blower.
3. high-temperature slag roller according to claim 2 drains method granulator, which is characterized in that the heat exchange unit includes turning
The stirring motor of axis, the multiple stirring blades being arranged in shaft and drive shaft rotation, multiple stirring blades are twist
Arrangement.
4. high-temperature slag roller according to claim 2 drains method granulator, which is characterized in that the granulated slag storage element
Including finished product storage warehouse and slag storage warehouse of quenching, the discharge port and air blower of the slag storage warehouse of quenching and the connecting line for being granulated room connect
Logical, the feeding inlet of the finished product storage warehouse and the discharge port of heat exchange unit connect.
5. high-temperature slag roller according to claim 2 drains method granulator, which is characterized in that the air blower passes through granulation
Blast pipe is connect with granulation room, and the granulation blast pipe is equipped with granulation air blast regulating valve；The air blower passes through heat exchange air hose
It is connect with heat exchange unit, the heat exchange air hose is equipped with heat exchange air blast regulating valve.
6. high-temperature slag roller according to any one of claims 1 to 5 drains method granulator, which is characterized in that the pumping slag
The roll surface of roller is machined with the groove of fine uniform arrangement.
7. high-temperature slag roller according to claim 6 drains method granulator, which is characterized in that the shape of the groove is square
Shape, square, circle, ellipse or diamond shape.
8. high-temperature slag roller according to any one of claims 1 to 5 drains method granulator, which is characterized in that the pumping slag
Unit further includes the scum board being in contact with the roll surface for taking out slag roller, for striking off the solids for taking out adhesion on slag roller roll surface.
9. high-temperature slag roller according to any one of claims 1 to 5 drains method granulator, which is characterized in that the granulation
Device further includes the liquid level sensor for measuring the slag liquid level in molten bath.
10. high-temperature slag roller according to any one of claims 1 to 5 drains method granulator, which is characterized in that the pumping slag
Circulating cooling liquid is passed through in the inside of roller and the cooling wall of granulation room.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175584.2U CN209537529U (en) | 2018-12-24 | 2018-12-24 | A kind of high-temperature slag roller drains method granulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175584.2U CN209537529U (en) | 2018-12-24 | 2018-12-24 | A kind of high-temperature slag roller drains method granulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209537529U true CN209537529U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822175584.2U Active CN209537529U (en) | 2018-12-24 | 2018-12-24 | A kind of high-temperature slag roller drains method granulator |
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| Country | Link |
|---|---|
| CN (1) | CN209537529U (en) |
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2018
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