CN102690915B - Modular dry granulating and cooling device for blast furnace slag - Google Patents
Modular dry granulating and cooling device for blast furnace slag Download PDFInfo
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- CN102690915B CN102690915B CN2012101756746A CN201210175674A CN102690915B CN 102690915 B CN102690915 B CN 102690915B CN 2012101756746 A CN2012101756746 A CN 2012101756746A CN 201210175674 A CN201210175674 A CN 201210175674A CN 102690915 B CN102690915 B CN 102690915B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/052—Apparatus features including rotating parts
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/052—Apparatus features including rotating parts
- C21B2400/054—Disc-shaped or conical parts for cooling, dispersing or atomising of molten slag rotating along vertical axis
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/074—Tower structures for cooling, being confined but not sealed
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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
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Abstract
The invention discloses a modular dry granulating and cooling device for blast furnace slag, and belongs to a treatment device for blast furnace slag. The modular dry granulating and cooling device comprises a mobile tundish device, a mobile granulating device, a water-cooled barrel and a mobile stirring, cooling and discharging device, wherein the mobile granulating device and the mobile stirring, cooling and discharging device are respectively arranged on a support frame through moving mechanisms; the mobile tundish device is arranged on the top of a cooling device and arranged above the mobile granulating device through a moving mechanism; the water-cooled barrel is arranged below the mobile granulating device; and the mobile stirring, cooling and discharging device is arranged below the water-cooled barrel. By modular design, the structure of each device of the modular dry granulating and cooling device for blast furnace slag is clear, and the modular dry granulating and cooling device is easy to operate and replace. The modular dry granulating and cooling device can be used for cooling and granulating the blast furnace slag, and is wide in application range, easy to produce and assemble, suitable for industrialized production and easy to popularize.
Description
Technical field
The present invention relates to a kind for the treatment of unit of blast furnace slag, in particular, the present invention relates generally to a kind of blast-furnace slag dry granulation refrigerating unit of moudle type.
Background technology
Blast-furnace slag is a kind of byproduct that blast furnace ironmaking produces, and is a kind of well behaved silicate material, through processing treatment, is mainly used in making the raw material of material of construction and chemical fertilizer.Simultaneously, in blast furnace production process, enter various former, the fuel of stove after smelting, except obtaining molten iron (conversion pig or foundry iron) and byproduct blast furnace gas, gangue in iron ore, ash content in fuel and flux merge and just form liquid slag, and its general temperature is 1450～1650 ℃, regularly discharge from cinder notch, iron mouth.1 ton of pig iron of every production is wanted by-product 300～400kg slag, and outflow temperature is at 1450～1650 ℃, and the 1t blast furnace slag approximately contains the heat of 1800MJ, amounts to the 64kg standard coal.The blase furnace cast iron output of China in 2011 is 6.3 hundred million t, and the generation of blast furnace slag is about 2.14 hundred million t, and institute's heat content is amounted to 1,370 ten thousand t standard coals.
At present, the liquid blast-furnace slag of China adopts water quenching to produce grain slag more than 90%, and the blast-furnace slag after water-cooled can be used for making the material of construction such as cement, and water treating method commonly used has Yin Bafa, figure daraf(reciprocal of farad), Lhasa method etc.The method Main Problems has: water consumption is serious, processes 1 ton of slag water consumption per ton, and a large amount of H that produce
2S and SO
XGas enters atmosphere with water vapour, causes environmental pollution.Process the 1t slag and produce 800m
3Water vapor, wherein H
2S content 19mg/m
3, SO
2Content 4.319mg/m
3The waste heat of slag is not effectively recycled; The grain slag water ratio is high simultaneously, still needs drying treatment as cement raw material, needs to consume certain energy; Investment and the running cost of system are high, and the blast furnace of a daily output 2500t will be built two cover flush slag equipment, and generally 4,000 ten thousand yuan of left and right, in the flush slag process, the slag that iron content is higher easily sets off an explosion in construction investment; And the grain slag purposes is more single.The H that produces
2S and SO
XEnter atmosphere Deng obnoxious flavour with steam, promote the formation of acid rain, the accumulation of Water Quenching Slag has taken a large amount of land areas, even sand can occur, and aggravating working environment causes serious environmental pollution.Domestic blast furnace slag heat recovery only limits to the using exhaust heat of slag flushing water heating.
Shortcoming for the blast-furnace slag water quenching; 20 century 70s, the method for the dry granulation slag that begun one's study both at home and abroad mainly contains wind quench method and centrifugal granulation method; both first with liquid blast-furnace slag quick crashing, be solidified as small-particle, then adopt the method for technique means recovery waste heat.The wind method of quenching be with high-power granulation blower fan produce high pressure, high velocity air with slag dispel, the method for granulation, main drawback is that power consumption is large, equipment bulky complex, floor space are large, investment and working cost high, and produce secondary dust and pollute.Centrifugal granulation is to rely on centrifugal force that the high speed rotating of rotating disk or revolving cup produces with liquid blast furnace slag granulation; have that the granulation energy consumption is low, the size distribution of grain slag is even; be easy to realize the characteristics such as sensible heat recovery; it is the hot research direction that current blast furnace slag is processed; many granulating occur theoretical, and obtained the part Experiment Result.The cooling distance of slag particle granulating in prilling granulator is larger, generally needs 5-7 rice, and the transmission mechanism of existing prilling granulator granulation disc all designs below prilling granulator, so its transmission shaft is longer, overhauls very inconveniently, also there is no reliable interchangeability.
Summary of the invention
The technical problems such as one of purpose of the present invention is to solve above-mentioned deficiency, and a kind of blast-furnace slag dry granulation refrigerating unit of moudle type is provided, and solves in prior art the cooling distance of blast furnace slag with expectation larger, and the oversize and trouble shooting of propeller shaft length is inconvenient.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
Provided by the present invention is a kind of blast-furnace slag dry granulation refrigerating unit of moudle type, comprise portable tundish device, portable prilling granulator, water-cooled cylindrical shell and the cooling dumping device of mobile stirring, also comprise bracing frame in described refrigerating unit, described portable prilling granulator and the cooling dumping device of mobile stirring all are arranged on bracing frame by travel mechanism respectively, and they can move on bracing frame by travel mechanism at different horizontal planes in case of necessity; Described portable tundish device is placed in the top of refrigerating unit, and is arranged on the top of portable prilling granulator by travel mechanism, and the water-cooled cylindrical shell is placed in the below of portable prilling granulator, and the cooling dumping device of mobile stirring is placed in the below of water-cooled cylindrical shell.
Further technical scheme is: the central axis of described portable tundish device, portable prilling granulator, water-cooled cylindrical shell and the cooling dumping device of mobile stirring overlaps; Described refrigerating unit also comprises the warm sludge e Foerderanlage, the warm sludge e Foerderanlage be arranged on the cooling dumping device of mobile stirring near, will be delivered to field of employment or storage place by the granulated slag that the cooling dumping device of mobile stirring is discharged.
Further technical scheme is: described portable tundish device integral body is arranged on the top of portable prilling granulator by travel mechanism, and portable prilling granulator top is provided with the supportive device that matches with its travel mechanism, and be provided with guide rail on supportive device, and the whole cup-shaped body of portable tundish device, its below is provided with the slag spout, be provided with the slag flow control mechanism on described slag spout, by the speed of slag outflow in slag flow control mechanism adjustable mobile tundish device.
Further technical scheme is: described portable prilling granulator comprises granulation cylindrical shell, granulation disc, granulation bracing frame and transmission rig at least, and granulation disc is fixed on the top of granulation bracing frame, and granulation bracing frame and transmission rig interfix; The bottom of described granulation cylindrical shell is equipped with a plurality of center divergent shape or netted supports of being, transmission rig is arranged on the support of granulation cylinder body bottom, drive granulation bracing frame and granulation disc rotation by transmission rig, granulation disc is corresponding with the position of the slag spout of portable tundish bottom of device; Also be provided with one or more spiral wind nozzles on the side any part of described granulation cylindrical shell.
Further technical scheme is: described granulation bracing frame bottom centre place is interconnected and fixed by shaft coupling and transmission rig; Also be provided with water cooling or air-cooling device on described transmission rig.
Further technical scheme is: be provided with the retaining cavity between the skin of described water-cooled cylindrical shell and internal layer, and its side also is provided with at least one exhanst gas outlet, and the water-cooled cylindrical shell is fixed on also on bracing frame; Described water-cooled cylindrical shell medial surface also is provided with one or more spiral wind nozzles.
Further technical scheme is: the cross section of the cooling dumping device of described mobile stirring is in the shape of the letter V, it comprises discharging cylindrical shell, dreg scraper and transmission rig at least, the bottom of discharging cylindrical shell is provided with the slag particle relief outlet, near middle is provided with and is center divergent shape or netted support, transmission rig is arranged on the support of discharging cylindrical shell near middle, and dreg scraper is connected with transmission rig; And also be provided with at least one air nozzle on any side of discharging cylindrical shell.
Further technical scheme is: the central axis of the position that described transmission rig is installed on the support of discharging cylindrical shell near middle and discharging cylindrical shell coincides; Also be provided with the retaining cavity between the skin of described discharging cylindrical shell and internal layer; Described dreg scraper is axially uniform butterfly structure of 120 degree; Described air nozzle is arranged on the bottom of discharging cylindrical shell, and the direction of air nozzle tilts for court.
Further technical scheme is: described bracing frame is the symmetrical structure in left and right, symmetrical bracing frame inboard, left and right is provided with a plurality of supporting bable tops groups that are comprised of supporting bable tops, and the supporting bable tops in every group of supporting bable tops group is all on the same straight line, and is provided with supporting guide on supporting bable tops.
Further technical scheme is: described travel mechanism comprises rotating shaft, bearing and wheel hub, is connected with wheel hub by rotating shaft and bearing, is placed on the supporting guide on bracing frame.
compared with prior art, one of beneficial effect of the present invention is: by with the portable tundish device in refrigerating unit, portable prilling granulator, the cooling dumping device modularization of water-cooled cylindrical shell and mobile stirring arranges, and use respectively travel mechanism that they are installed on bracing frame, make when wherein certain device breaks down, can move to by the device that travel mechanism will break down other positions overhauls, other devices that do not affect in refrigerating unit use, maintainability performance is excellent, have advantages of also that simultaneously the modular device between a plurality of refrigerating units changes use mutually, make blast furnace slag granulation refrigerating unit reliability of operation be improved, and effectively realize the energy-saving and emission-reduction of STEELMAKING PRODUCTION, for realizing that the blast-furnace slag UTILIZATION OF VESIDUAL HEAT IN provides prerequisite, after the blast-furnace slag dry granulation refrigerating unit of a kind of moudle type provided by the present invention arranges its each appliance arrangement by modularization simultaneously, structure is more clear, can be used for the various blast-furnace slags of cooling granulation, range of application is wide, and production and assembly are simple, be suitable for suitability for industrialized production, be easy to promote.
Description of drawings
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the portable prilling granulator structural representation in an embodiment of the present invention;
Fig. 3 is the structural representation of the cooling dumping device of mobile stirring in the another kind of embodiment of the present invention;
Fig. 4 is the structural representation of the bracing frame in the embodiment of the present invention.
Embodiment
The present invention is further elaborated below in conjunction with accompanying drawing.
Fig. 1 shows one-piece construction schematic diagram of the present invention, shown in Figure 1, first embodiment of the present invention is to provide a kind of blast-furnace slag dry granulation refrigerating unit of moudle type, comprise portable tundish device 1, portable prilling granulator 2, the cooling dumping device 4 of water-cooled cylindrical shell 3 and mobile stirring, also comprise bracing frame 5 in described refrigerating unit, described portable prilling granulator 2 all is arranged on bracing frame 5 by travel mechanism respectively with the cooling dumping device 4 of mobile stirring, they can move on bracing frame 5 by travel mechanism at different horizontal planes in case of necessity, described portable tundish device 1 is placed in the top of refrigerating unit, and be arranged on the top of portable prilling granulator 2 by travel mechanism, water-cooled cylindrical shell 3 is placed in the below of portable prilling granulator 2, and the cooling dumping device 4 of mobile stirring is placed in the below of water-cooled cylindrical shell 3, and aforesaid technical scheme is for solving the basic embodiment of at least one technical problem in the present invention.
above-mentioned portable prilling granulator 2 with in the granulation refrigerating unit all is arranged on bracing frame 5 with the cooling dumping device 4 of mobile stirring, and portable tundish device 1 is arranged on the top of portable prilling granulator 2, make tundish device 1, portable prilling granulator 2, form modularization between the cooling dumping device 4 of water-cooled cylindrical shell 3 and mobile stirring, its daily do not use or aforesaid parts in any one when breaking down, all it can be moved separately and out overhaul or change, but carrying out granulation when cooling, the parts of aforesaid modules need to be merged into a single whole, therefore for guaranteeing the fiting effect between aforesaid parts, mutual repulsion does not appear, preferably with described portable tundish device 1, portable prilling granulator 2, the central axis of the cooling dumping device 4 of water-cooled cylindrical shell 3 and mobile stirring is set to overlap, and for realizing aforesaid modular functionality, all can be by travel mechanism on the basis of moving on bracing frame 5 with the cooling dumping device 4 of mobile stirring at portable prilling granulator 2, water-cooled cylindrical shell 3 does not generally need to move to realize modularization, but for making good the coordinating and the convenience of installation of cooling dumping device 4 formation of itself and portable prilling granulator 2, mobile stirring, preferably water-cooled cylindrical shell 3 also is fixedly mounted on bracing frame 5, fixed form is preferably bolt and fixes.Simultaneously for increasing cooling effect, be provided with retaining cavity 31 between the skin of water-cooled cylindrical shell 3 and internal layer, water-cooled cylindrical shell 3 medial surfaces also are provided with one or more spiral wind nozzles 8, and its side also is provided with at least one exhanst gas outlet 32, the cooling high-temperature flue gas that obtains can be exported to outside water-cooled cylindrical shell 3 to be used as him by exhanst gas outlet 32, spiral wind nozzle 8 can make the inner spiral air flow that forms of water-cooled cylindrical shell 3, reduces the speed that slag particle descends, and prevents that it from the secondary bonding occuring.Described refrigerating unit also comprises the warm sludge e Foerderanlage 7 of carrying corollary apparatus as granulation and cooled blast-furnace slag, warm sludge e Foerderanlage 7 be arranged on the cooling dumping device 4 of mobile stirring near.
And above-mentioned wherein preferred fitting limit is corresponding with the slag particle relief outlet of warm sludge e Foerderanlage 7 at the initiating terminal of e Foerderanlage 7, will be delivered to field of employment or storage place by the granulated slag that the cooling dumping device 4 of mobile stirring is discharged.Technical scheme in the embodiment of aforesaid distinguishing characteristics and the invention described above basis combines, and can be used as another embodiment that the present invention can obtain more excellent cooling granulation effect.
above-mentioned bracing frame 5 is realized the key structure of each apparatus module for the present invention, it mainly plays a supportive role in the present invention, make in the present invention each device can by travel mechanism above it different aspect carry out transverse shifting, shown in Figure 4, be set to the symmetrical structure in left and right for the preferred structure of bracing frame 5 for it, symmetrical bracing frame 5 inboards, left and right are provided with a plurality of supporting bable tops groups 51 that are comprised of supporting bable tops, and the supporting bable tops in every group of supporting bable tops group 51 is all on the same straight line, and the top of supporting bable tops also is provided with supporting guide 52.And consider that the above-mentioned travel mechanism that realizes on bracing frame 5 on each mobile device that is arranged on need coordinate with each supporting bable tops group 51 formation on bracing frame, the preferred structure of the travel mechanism on therefore portable prilling granulator 2 and the cooling dumping device 4 of mobile stirring is for comprising rotating shaft, bearing and wheel hub, be connected with wheel hub by rotating shaft and bearing, be placed on the supporting guide 52 on bracing frame 5.
refer again to shown in Figure 1, portable tundish device 1 integral body of mentioning in the middle of above-mentioned two embodiment of the present invention is arranged on the top of portable prilling granulator 2 by travel mechanism, and portable prilling granulator 2 tops are provided with the supportive device that matches with its travel mechanism, and be provided with guide rail 9 on supportive device, and the whole cup-shaped body of portable tundish device 1, its below is provided with slag spout 11, be provided with slag flow control mechanism 12 on described slag spout 11, speed by slag outflow in slag flow control mechanism 12 adjustable mobile tundish devices 1.And the travel mechanism on portable tundish device 1 also can be with reference to the structure of travel mechanism on above-mentioned portable prilling granulator 2 and the cooling dumping device 4 of mobile stirring, rotating shaft and bearing are connected with wheel hub, are placed on the guide rail 9 of the supportive device that portable prilling granulator 2 tops arrange.Blast-furnace slag in being poured onto portable tundish device 1 after, for preventing that a large amount of blast-furnace slags from entering in portable prilling granulator 2 at one time, or enter without blast-furnace slag intermittently, make portable prilling granulator 2 idle running, therefore acting as of portable tundish device 1 will make blast-furnace slag section will be temporary within it, and it is cooling that its entering is at the uniform velocity carried out granulation in portable prilling granulator 2, improves cooling efficient.
And on the above embodiments bases, the present inventor also improves for the portable prilling granulator 2 of mentioning in the middle of it, and provide a kind of preferred technical scheme of relevant portable prilling granulator 2, combine with above-mentioned several embodiment being used for, and construct the embodiment that the present invention is more preferably:
Fig. 2 shows the preferred structure schematic diagram of portable prilling granulator 2 of the present invention, shown in Figure 2, described portable prilling granulator 2 comprises granulation cylindrical shell 21, granulation disc 22, granulation bracing frame 23 and transmission rig at least, granulation disc 22 is fixed on the top of granulation bracing frame 23, and granulation bracing frame 23 interfixes with transmission rig, the bottom of described granulation cylindrical shell 21 is equipped with a plurality of center divergent shape or netted supports 24 of being, transmission rig is arranged on the support of granulation cylindrical shell 21 bottoms, driving granulation bracing frame 23 by transmission rig rotates with granulation disc 22, granulation disc 22 is corresponding with the position of the slag spout 11 of portable tundish device 1 bottom, and preferably granulation bracing frame 23 is interconnected and fixed by shaft coupling and transmission rig by its bottom centre place, and for guarantee that transmission rig turns round for a long time in specified operating temperature range, water cooling or air-cooling device can also be set on described transmission rig, also be provided with one or more spiral wind nozzles 8 on the side any part of described granulation cylindrical shell 21, spiral wind nozzle 8 act as at the interior formation spiral air flow of granulation cylindrical shell 21, prevent that by spiral wind is cooling slag particle from boning again, the form that makes blast-furnace slag after granulation be spiral drops in water-cooled cylindrical shell 3, therefore for guaranteeing in granulation cylindrical shell 21 enough strong spiral air flow, therefore preferably with the uniform surrounding that is set to water-cooled cylindrical shell 3 inside of spiral wind nozzle 8, quantity is set to 5 to 8 for well, but concrete also the need determined according to the concrete volume of granulation cylindrical shell 21 inside.
Fig. 3 shows the preferred structure schematic diagram of the cooling dumping device 4 of the mobile stirring that adopts in the above embodiment of the present invention, shown in Figure 3, the contriver is except having carried out improvement to the structure of above-mentioned portable prilling granulator 2, also the structure of the cooling dumping device 4 of mobile stirring is also improved, can combine with the above embodiments equally, construct preferred one or several embodiment of the present invention, the cross section of the cooling dumping device 4 of described mobile stirring is in the shape of the letter V, it comprises discharging cylindrical shell 41, dreg scraper 42 and transmission rig, the bottom of discharging cylindrical shell 41 is provided with slag particle relief outlet 45, near middle is provided with and is center divergent shape or netted support 43, transmission rig is arranged on the support 43 of discharging cylindrical shell 41 near middles, dreg scraper 42 is connected with transmission rig, and also be provided with at least one air nozzle 6 on any side of discharging cylindrical shell 41, and air nozzle 6 to act on said structure identical, its quantity and arrangement mode also can carry out with reference to above-mentioned technical scheme, in conjunction with aforesaid technical scheme content, the technique means that is more preferably is that the position that described transmission rig is installed on the support 43 of discharging cylindrical shell 41 near middles and the central axis of discharging cylindrical shell 41 coincide, also be provided with retaining cavity 44 between the skin of described discharging cylindrical shell 41 and internal layer, described dreg scraper 42 is axially uniform butterfly structure of 120 degree, described air nozzle 6 is arranged on the bottom of discharging cylindrical shell 41, and the direction of air nozzle 6 tilts for court.
" embodiment " who speaks of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification sheets.Furthermore, when describing a specific features, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (9)
1. the blast-furnace slag dry granulation refrigerating unit of a moudle type, comprise portable tundish device (1), portable prilling granulator (2), water-cooled cylindrical shell (3) and the cooling dumping device of mobile stirring (4), it is characterized in that: also comprise bracing frame (5) in described refrigerating unit, described portable prilling granulator (2) all is arranged on bracing frame (5) by travel mechanism respectively with the cooling dumping device of mobile stirring (4), and they can be upper mobile at bracing frame (5) by travel mechanism at different horizontal planes in case of necessity; Described portable tundish device (1) is placed in the top of refrigerating unit, and be arranged on the top of portable prilling granulator (2) by travel mechanism, water-cooled cylindrical shell (3) is placed in the below of portable prilling granulator (2), and the cooling dumping device of mobile stirring (4) is placed in the below of water-cooled cylindrical shell (3); The cross section of the cooling dumping device of described mobile stirring (4) is in the shape of the letter V, it comprises discharging cylindrical shell (41), dreg scraper (42) and transmission rig at least, the bottom of discharging cylindrical shell (41) is provided with slag particle relief outlet (45), near middle is provided with and is center divergent shape or netted support (43), transmission rig is arranged on the support (43) of discharging cylindrical shell (41) near middle, and dreg scraper (42) is connected with transmission rig; And also be provided with at least one air nozzle (6) on any side of discharging cylindrical shell (41); The direction of described air nozzle (6) tilts for court; Described transmission rig coincides in the upper position of installing of the support (43) of discharging cylindrical shell (41) near middle and the central axis of discharging cylindrical shell (41); Also be provided with retaining cavity (44) between the skin of described discharging cylindrical shell (41) and internal layer; Described dreg scraper (42) is axially uniform butterfly structure of 120 degree.
2. the blast-furnace slag dry granulation refrigerating unit of moudle type according to claim 1, it is characterized in that: the central axis of described portable tundish device (1), portable prilling granulator (2), water-cooled cylindrical shell (3) and the cooling dumping device of mobile stirring (4) overlaps; Described refrigerating unit also comprises warm sludge e Foerderanlage (7); warm sludge e Foerderanlage (7) be arranged on the cooling dumping device of mobile stirring (4) near, will be delivered to field of employment or storage place by the granulated slag that the cooling dumping device of mobile stirring (4) is discharged.
3. the blast-furnace slag dry granulation refrigerating unit of moudle type according to claim 1, it is characterized in that: described portable tundish device (1) integral body is arranged on the top of portable prilling granulator (2) by travel mechanism, and portable prilling granulator (2) top is provided with the supportive device that matches with its travel mechanism, and be provided with guide rail on supportive device, and the whole cup-shaped body of portable tundish device (1), its below is provided with slag spout (11), be provided with slag flow control mechanism (12) on described slag spout (11), speed by slag outflow in slag flow control mechanism (12) adjustable mobile tundish device (1).
4. the blast-furnace slag dry granulation refrigerating unit of moudle type according to claim 1, it is characterized in that: described portable prilling granulator (2) comprises granulation cylindrical shell (21), granulation disc (22), granulation bracing frame (23) and transmission rig at least, granulation disc (22) is fixed on the top of granulation bracing frame (23), and granulation bracing frame (23) interfixes with transmission rig; The bottom of described granulation cylindrical shell (21) is equipped with a plurality of center divergent shape or netted supports (24) of being, transmission rig is arranged on the support of granulation cylindrical shell (21) bottom, drive granulation bracing frame (23) by transmission rig and rotate with granulation disc (22), the position of the slag spout (11) of granulation disc (22) bottom portable tundish device (1) is corresponding; Also be provided with one or more spiral wind nozzles (8) on the side any part of described granulation cylindrical shell (21).
5. the blast-furnace slag dry granulation refrigerating unit of moudle type according to claim 4 is characterized in that: described granulation bracing frame (23) bottom centre place is interconnected and fixed by shaft coupling and transmission rig; Also be provided with water cooling or air-cooling device on described transmission rig.
6. the blast-furnace slag dry granulation refrigerating unit of moudle type according to claim 1 and 2, it is characterized in that: be provided with retaining cavity (31) between the skin of described water-cooled cylindrical shell (3) and internal layer, and its side also is provided with at least one exhanst gas outlet (32), and water-cooled cylindrical shell (3) also is fixed on bracing frame (5); Described water-cooled cylindrical shell (3) medial surface also is provided with one or more spiral wind nozzles (8).
7. the blast-furnace slag dry granulation refrigerating unit of moudle type according to claim 1, it is characterized in that: described air nozzle (6) is arranged on the bottom of discharging cylindrical shell (41).
According to claim 1 to 3 any described moudle type of claim blast-furnace slag dry granulation refrigerating unit; it is characterized in that: described bracing frame (5) is the symmetrical structure in left and right; symmetrical bracing frame (5) inboard, left and right is provided with a plurality of supporting bable tops groups (51) that are comprised of supporting bable tops; and the supporting bable tops in every group of supporting bable tops group (51) is all on the same straight line, and is provided with supporting guide (52) on supporting bable tops.
9. the blast-furnace slag dry granulation refrigerating unit of 4,5,7 any described moudle types of claim according to claim 1; it is characterized in that: described travel mechanism comprises rotating shaft, bearing and wheel hub; be connected with wheel hub by rotating shaft and bearing, be placed on the supporting guide (52) on bracing frame (5).
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| CN2012101756746A CN102690915B (en) | 2012-05-31 | 2012-05-31 | Modular dry granulating and cooling device for blast furnace slag |
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| CN2012101756746A CN102690915B (en) | 2012-05-31 | 2012-05-31 | Modular dry granulating and cooling device for blast furnace slag |
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