CN102719579A - Fluidized heat exchange device after slag of dry type granulating blast furnace - Google Patents
Fluidized heat exchange device after slag of dry type granulating blast furnace Download PDFInfo
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- CN102719579A CN102719579A CN2012101754933A CN201210175493A CN102719579A CN 102719579 A CN102719579 A CN 102719579A CN 2012101754933 A CN2012101754933 A CN 2012101754933A CN 201210175493 A CN201210175493 A CN 201210175493A CN 102719579 A CN102719579 A CN 102719579A
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- fluidized
- slag
- bed body
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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
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/076—Fluidised bed for cooling
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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
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a fluidized heat exchange device after slag of dry type granulating blast furnace, and belongs to a waste heat utilization device in the field of metallurgy. The fluidized heat exchange device comprises a fluidized bed body, a waste heat smoke gas collecting unit and an air distribution and material return unit, wherein the air distribution and material return unit is arranged at the lower part of the fluidized bed body; the waste heat smoke gas collecting unit is arranged at the upper part of the fluidized bed body and is used for collecting the waste heat smoke gas obtained through heat exchange and outputting the waste heat smoke gas; and a multilayer overflowing plate for smashing slag particles is also arranged inside the fluidized bed body, a feeding port is formed on one random side of the fluidized bed body, and the feeding port is formed above the multilayer overflowing plate. The fluidized heat exchange device after slag of the dry type granulating blast furnace is simple in structure, is suitable for heat exchange cooling of various blast furnace slag, is particularly suitable to be used as a heat exchanger device in a blast furnace slag continuous dry treatment waste heat continuous utilization system, and is wide in range of application.
Description
Technical field
The present invention relates to the residual heat using device in a kind of field of metallurgy, in particular, the present invention relates generally to the fluidisation heat exchanger behind a kind of dry type granulation blast-furnace slag.
Background technology
Blast-furnace slag is a kind of sub product that blast furnace ironmaking produces, and is a kind of well behaved silicate material, through processing treatment, is mainly used in the raw material of manufacture building material and chemical fertilizer.Simultaneously; In the blast furnace production process, various former, the fuel of going into stove removes acquisition molten iron (conversion pig or foundry iron) and the sub product blast furnace gas after smelting; Gangue in the iron ore; Temperature is 1450～1650 ℃ as ash content in the fuel and the flux fusion just formation liquid slag, one of which, regularly discharges from cinder notch, iron mouth.Usually will be called " going up slag " from the slag that cinder notch is discharged,, often be mixed with a small amount of molten iron in the following slag from be called " the following slag " of iron mouth in company with the molten iron discharge.The chemical ingredients of blast-furnace slag depends on that the working of a furnace in material composition, smelt iron kind, working method and the smelting process changes.Staple is CaO, MgO, SiO in the blast furnace slag
2And Al
2O
3, accounting for more than 95% of total amount, these four kinds of compositions can determine the metallurgical performance of blast furnace slag basically.The Flos Bombacis Malabarici vanadium titano-magnetite contains more TiO
2, the packet header baiyuneboite contains more CaF
2, with these particular iron ore smeltings, corresponding TiO in the slag
2, CaF
2More.In addition, also contain small amount of Fe O, MnO and CaS and some minor compounds in the slag, its basicity is generally 0.9～1.25.When blast-furnace smelting normally carried out, slag composition changed little, but need adjust charge composition sometimes in process of production, this moment the slag composition respective change, the working of a furnace changes slag composition and also can change, Feo, SiO in the slag when stove is cold
2Content can have slightly and increases.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 contains the heat of 1800MJ approximately, amounts to 64Kg standard coal equivalent.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 coal equivalents.
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 the water-cooled can be used for making material of construction such as cement, and water treating method commonly used has Yin Bafa, figure daraf(reciprocal of farad), Lhasa method etc.The subject matter that this method exists has: water consumption is serious, handles 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.Handle the 1t slag and produce 800m
3Water vapor, wherein H2S 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; The investment of system and running cost are high, and the blast furnace of a daily output 2500t will be built two cover flush slag equipment, and generally about 4,000 ten thousand yuan, in the flush slag process, the higher slag of iron content is prone to set 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 to pollute.Domestic blast furnace slag heat recovery only limits to the using exhaust heat of slag flushing water heating.All there was the report that adopts using exhaust heat of slag flushing water to solve plant area's part heating or bathroom heat supply water in enterprises such as Shoudu Iron and Steel Co, Ji steel, Xuan Gang, Anshan iron and steel plant, this steel, Laigang, An Gang.But this utilization only accounts for the seldom part of blast furnace slag complete sensible heat, and the waste heat recovery rate is low, is merely about 10%, and limited by time and region, and at the southern area of summer and no warming installation, this part energy can only be wasted, and therefore applies being restricted.It is thus clear that; Molten blast furnace slag dry type granulated processed and waste heat recovery just become iron and steel enterprise's environment protection and energy-saving and cost-reducing important channel; Under the prerequisite that guarantees finished product slag particle economic benefit; How the high temperature slag particle waste heat high efficiente callback after the dry type granulation is utilized, will become one of core technology of whole molten slag waste heat recovery engineering.
Conventional dry type granulation high temperature slag particle heat recovery technology directly feeds waste heat boiler equipment with the high temperature slag particle as the thermal source medium, carries out heat exchange through heating surface and reclaims.The characteristics of this technical scheme are that consumption of new water, theoretical recovery waste heat quality high (heat exchange), initial investment cost are not low; But can't solve some problems of the actual generation of engineering, as: in case high temperature slag particle secondary caking, heating surface wear heating surface wear booster cause contradiction between slag particle band water, slag particle flowability and the heat exchange efficiency etc.
Summary of the invention
One of the object of the invention is to solve above-mentioned deficiency; Fluidisation heat exchanger behind a kind of dry type granulation blast-furnace slag is provided; Solve technical problems such as the high temperature slag particle is prone to take place the secondary caking at heat transfer process in the prior art, and heat exchange is not thorough, and comprehensive heat exchange efficiency is low with expectation.
For solving above-mentioned technical problem, the present invention adopts following technical scheme:
Provided by the present invention is fluidisation heat exchanger behind a kind of dry type granulation blast-furnace slag; Comprise fluidized-bed body, waste heat flue gas collector unit and cloth wind feed back unit; Described cloth wind feed back unit places the bottom of fluidized-bed body; Waste heat flue gas collector unit places the fluidized-bed upper part of body, and waste heat flue gas collector unit is used to collect waste heat flue gas that heat exchange obtains and with its output; The inside of described fluidized-bed body also is provided with the multilayer overcurrent plate that is used to break up slag particle, and any side of fluidized-bed body is provided with material inlet, and material inlet is arranged on the top of multilayer overcurrent plate; Described cloth wind feed back comprises wind-force generation device and many slag dropping tubes in the unit; The unitary bottom of cloth wind feed back is provided with discharge opening; Many slag dropping tubes are installed in the below of multilayer overcurrent plate, and are connected with the fluidized-bed body interior, are used for delivering to through the slag particle behind the multilayer overcurrent plate near the discharge opening; And the unitary side of cloth wind feed back also is provided with air intake vent; The wind-force generation device is installed on the air intake vent, make the inner generation in cloth wind feed back unit air-flow upwards through the wind-force generation device, and air-flow passes through fluidized-bed body and waste heat flue gas collector unit successively.
Further technical scheme is: described fluidized-bed body interior also is provided with filtering net; And filtering net places between material inlet and the multilayer overcurrent plate; Be used to filter and bond together and slag particle that volume is bigger; And the side of fluidized-bed body also is provided with aperture of door, and described aperture of door places the top of filtering net.
Further technical scheme is: it is characterized in that: the xsect of described multilayer overcurrent plate is for being trilateral or being similar to trilateral, and layering is fixed on the inboard of fluidized-bed body, and is the vertically staggered form cellular structure of formation of arranging.
Technical scheme further is: described material inlet is level or the downward-sloping any side that is arranged on the fluidized-bed body; And near material inlet also is provided with and is used to purge slag particle and makes its overfiren air port that is distributed in the fluidized-bed body interior, and overfiren air port places on the fluidized-bed body side of filtering net top.
Technical scheme further is: comprise tapered gas skirt in the described waste heat flue gas collector unit and turn to flue, and turn to fly-ash separator also is installed on the flue.
Technical scheme further is: described fly-ash separator is tornado dust collector, and it comprises the fly-ash separator body, and the fly-ash separator body is provided with air flow inlet, air stream outlet and ash port, and all is provided with the standpipe expansion joint on air flow inlet and the ash port; The described steering angle that turns to flue is 90 degree.
Technical scheme further is: described cloth wind feed back also comprises air distribution plate in the unit; Air distribution plate is installed in the below of multilayer overcurrent plate; Described many slag dropping tubes pass air distribution plate and place the below of air distribution plate, and the air distribution plate top also is provided with the blast cap of oblique perforate.
Technical scheme further is: also be provided with one in the described cloth wind feed back unit to the inclined-plane that the air intake vent direction tilts, the length of many slag dropping tubes and this inclined-plane adapt, and the wind-force generation device that is installed in the air intake vent place produces air-flow upwards by this inclined-plane; The unitary side of described cloth wind feed back also is provided with the manhole device.
Technical scheme further is: described cloth wind feed back unit also is provided with tapered slag bucket; And slag bucket places to the inclined-plane that the air intake vent direction tilts and the below of many slag dropping tubes; Described discharge opening is arranged on the bottom of slag bucket, and discharge valve is installed on the discharge opening; Described wind-force generation device is a gas blower.
Technical scheme further is: described fluidized-bed body, waste heat flue gas collector unit and cloth wind feed back unit are monobloc(k)type, and are coated by the fluidized-bed housing.
Compared with prior art; One of beneficial effect of the present invention is: through the polynuclear plane of being arranged and forming in the fluidized-bed body interior by multilayer overcurrent plate; Make slag particle after getting into the fluidized-bed body, can fully be broken up; Prevent in heat transfer process, to take place the secondary caking, the auxiliary bigger slag particle of volume of also having avoided down at filtering net and overfiren air port blocks other passage in the fluidized-bed body simultaneously; And utilize air to carry out heat exchange, by turning to flue that warm air is exported, recycle the waste heat of high temperature slag particle after the heat exchange, thoroughly solved waste heat boiler equipment heating surface wear booster and caused that the slag particle heat exchange reclaims the situation that has moisture in the middle of the back as intermediate medium; And through cooperatively interacting between slag dropping tube, air distribution plate, slag bucket and the overfiren air port; Can realize that slag particle is carried out heat exchange according to different situation such as its particle size and speed of cooling speeds to be reclaimed; Fluidisation heat-exchange device structure behind a kind of dry type granulation blast-furnace slag provided by the present invention is simple simultaneously; Be applicable to various types of blast-furnace slag heat exchange coolings; And be particularly suited for utilizing the heat-exchanger rig in the system to use continuously as the continuous dry process waste heat of blast-furnace slag, range of application is wide.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram that is used to explain an embodiment of the present invention fluidisation heat exchanger;
Fig. 2 is the cloth wind feed back modular construction synoptic diagram that is used for explaining the another kind of embodiment of the present invention;
Fig. 3 is the cyclone duster structure synoptic diagram that is used for explaining the another kind of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further elaboration.
Fig. 1 shows the one-piece construction of a kind of form of the present invention; Referring to shown in Figure 1; First kind of embodiment of the present invention is the fluidisation heat exchanger behind a kind of dry type granulation blast-furnace slag, comprises fluidized-bed body 1, waste heat flue gas collector unit 2 and cloth wind feed back unit 3, and according to content illustrated in fig. 1; Fluidized-bed body 1, waste heat flue gas collector unit 2 and cloth wind feed back unit 3 all are monobloc(k)type, and are coated by the fluidized-bed housing.
Described cloth wind feed back unit 3 places the bottom of fluidized-bed body 1; Waste heat flue gas collector unit 2 places the top of fluidized-bed body 1, and the effect of waste heat flue gas collector unit 2 is to be used for collecting the waste heat flue gas that heat exchange obtains and to export them to other equipment carrying out the heat energy trans-utilization; The inside of described fluidized-bed body 1 also is provided with multilayer overcurrent plate 11; The effect of this multilayer overcurrent plate 11 is that slag particle is broken up it in the process that descends; And aforesaid slag particle to be any side from fluidized-bed body 1 be provided with material inlet 12 gets into; Material inlet only need be arranged on it top of aforesaid multilayer overcurrent plate 11 because the position of 12 settings does not have particular requirement; Comprise wind-force generation device and many slag dropping tubes 31 in the described cloth wind feed back unit 3; The bottom of cloth wind feed back unit 3 is provided with discharge opening 32; Many slag dropping tubes 31 are installed in the below of multilayer overcurrent plate 11, and are connected with fluidized-bed body 1 inside, are used for delivering to through the slag particle behind the multilayer overcurrent plate 11 near the discharge opening 32; And a side of cloth wind feed back unit 3 also is provided with air intake vent 33; The wind-force generation device is installed on the air intake vent 33, make cloth wind feed back unit 3 inner generations air-flow upwards through the wind-force generation device, and air-flow passes through fluidized-bed body 1 and waste heat flue gas collector unit 2 successively.
Above-mentioned technical scheme is a comparatively basic embodiment of the present invention; Slag particle receives the obstruction of multilayer overcurrent plate 11 in the process that descends after getting into fluidized-bed body 1 by material inlet 12, make that it is broken up; And produce at the wind-force generation device under the effect of air-flow; The temperature of slag particle also descends fast, gets into many slag dropping tubes 31 subsequently and continues to descend, and is discharged by discharge opening 32 at last; The hot gas flow that in the slag particle process of cooling, is produced is then collected by the parts in the waste heat flue gas collector unit 2, is delivered in other devices to carry out heat energy utilization.
And on the basis of the foregoing description; For preventing that slag particle from bonding together, the excessive slag particle of perhaps volume own is stuck in the multilayer overcurrent plate 11 and can't descends, and makes the follow-up slag particle that gets into through material inlet 12 stop up; Therefore preferred as the above embodiment of the present invention; In the structure of the foregoing description technical scheme, also can do following improvement, set up filtering net 13, and filtering net 13 places between material inlet 12 and the multilayer overcurrent plate 11 in fluidized-bed body 1 inside; The slag particle that gets into through material inlet 12 so at first drops on the filtering net, passes through fluidized-bed body 1 inside that is provided with multilayer overcurrent plate 11 after being filtered by filtering net again.For forming supporting with filtering net 13; Also need aperture of door 14 to be set in the side of fluidized-bed body 1; Described aperture of door 14 places the top of filtering net 13; During slag particle that the purpose that aperture of door 14 is set too much bonds together on filtering net 13, having deposited, volume is bigger, open the slag particle on the filtering net 13 is removed, to prevent to get into again the inside of fluidized-bed body 1 by the slag particle that material inlet 12 gets into.Aforementioned mentioning increased the structure of filtering net 13 with aperture of door 14, can be used as preferred relatively another embodiment of the present invention and above-mentioned basic embodiment.
Continue to combine the technical scheme of above-mentioned two embodiment; The multilayer overcurrent plate of wherein being mentioned 11 is the main structures in fluidized-bed body 1 inside; Also be to break up slag particle among the present invention and delay its lowering speed to reach one of primary structure that fully dispels the heat through air-flow; Structure for multilayer overcurrent plate 11; Preferred a kind of structure formation is that its xsect is set to trilateral or is similar to leg-of-mutton shape, on the stratified medial surface that is fixed on fluidized-bed body 1, arranges and then forms cellular structure through vertically staggered form.The structure of aforesaid preferred multilayer overcurrent plate 11 can combine with the technical scheme of above-mentioned two embodiment, is configured to the embodiment that the present invention is more preferably.
The contriver is when experimentizing with the fluidisation heat exchanger behind the dry type granulation blast-furnace slag of above-mentioned example structure; Though find that it has solved to break up slag particle and delay its lowering speed and realize fully heat radiation to make air-flow through the wind-force generation device; And reclaim technical problem such as heat, but, can only material inlet 12 be arranged on the side of fluidized-bed body 1 because its one-piece construction need reclaim the high-temperature flue gas air-flow to do his usefulness; Therefore be prone to cause slag particle skewness when getting into fluidized-bed body 1 inside in actual the use; Multilayer overcurrent plate 11 local slag particles are through too intensive, and local slag particle is through too loose, therefore to this situation that is left to be desired of the present invention; The contriver provides following structure and improves aforesaid deficiency with expectation; Be that described material inlet 12 is any side that level or downward-sloping form are arranged on fluidized-bed body 1, and near the of material inlet 12 also be provided with overfiren air port 15, and overfiren air port 15 place on fluidized-bed body 1 side of filtering net 13 tops; The effect of overfiren air port 15 is the purging slag particle makes it be distributed in the inside of fluidized-bed body 1; And consider that pipeline is arranged and heat exchanger is installed the convenience that disposes, preferably overfiren air port 15 and material inlet 2 are installed in the same side of fluidized-bed body 1, and overfiren air port 15 settings are inclined upwardly.
Fig. 2 shows a kind of preferred structure synoptic diagram of cloth wind feed back of the present invention unit 3; Referring to shown in Figure 2; In the cloth wind feed back unit 3 except comprising wind-force generation device that the foregoing description mentions, many slag dropping tubes 31 and discharge opening 32 and air intake vent 33; Also comprise air distribution plate 34, air distribution plate 34 is installed in the below of multilayer overcurrent plate 11, and described many slag dropping tubes 31 pass air distribution plate 34 and place the below of air distribution plate 34; And air distribution plate 34 tops also are provided with the blast cap 35 of oblique perforate; The air-flow that the acting as of blast cap 35 produces the wind-force generation device can make progress through air distribution plate 34 smoothly and flow, and slag particle then gets into many slag dropping tubes 31 inside, and the purpose of blast cap 35 oblique perforates is stopped up for preventing slag particle entering blast cap 35.And wind-force generation device illustrated in fig. 2 is a gas blower 4.
Simultaneously on above-mentioned cloth wind feed back unit 3 architecture basics; Directly upwards flow for making the side get into cloth wind feed back unit 3 inner air-flows by air intake vent 33; Be preferably in the inclined-plane 36 of the set inside one of cloth wind feed back unit 3 to the inclination of air intake vent 33 directions; The length of many slag dropping tubes 31 and this inclined-plane adapt; Be that many slag dropping tubes 31 down do not extend to above this inclined-plane 36, acting as then of this inclined-plane 36 impels the slag particle cooling through multilayer overcurrent plate for auxiliary wind-force generation device produces air-flow upwards; The side of described cloth wind feed back unit 3 also is provided with manhole device 37; Manhole device 37 effect is when heat exchanger breaks down; The maintainer can be got into by this hole and overhaul, so manhole device 37 aperture is provided with and will can satisfies the inside that the maintainer gets into heat exchanger.
On the basis of above-mentioned cloth wind feed back unit 3 structures; The embodiment that is more preferably for the present invention is; For converging to discharge opening 32 fast, the slag particle that many slag dropping tubes 31 are discharged discharges; In cloth wind feed back unit 3, also have additional tapered slag bucket 38, and slag bucket 38 places to the below with many slag dropping tubes 31, inclined-plane 36 that air intake vent 33 directions tilt, discharge opening 32 is arranged on the bottom of slag bucket 38; And discharge valve 39 is installed on the discharge opening 32, and acting as at device of discharge valve 39 can not closed discharge opening 32 when not making.
Again referring to shown in Figure 1; Comprise tapered gas skirt 21 in the above-mentioned waste heat flue gas collector unit 2 and turn to flue 22; The gas skirt 21 of taper helps converging of high-temperature flue gas; And turn to fly-ash separator 23 also is installed on the flue 22, the removal slag particle that act as of fly-ash separator 23 cools off the dust in the high-temperature flue gas air-flow that is produced, conveniently to export the utilization of carrying out heat in other equipment to.
Fig. 3 shows the synoptic diagram of a kind of preferred fly-ash separator structure of the present invention; Referring to shown in Figure 3; Fly-ash separator 23 is tornado dust collector; It comprises fly-ash separator body 231, and fly-ash separator body 231 is provided with air flow inlet 232, air stream outlet 233 and ash port 234, and all is provided with standpipe expansion joint 235 on air flow inlet 232 and the ash port 234; The effect of standpipe expansion joint 235 is to absorb bloated poor that metal expands with heat and contract with cold and causes.For cooperating the fly-ash separator 23 of this structure, again referring to shown in Figure 1, the above-mentioned steering angle that turns to flue 22 is preferably 90 degree simultaneously.
Also need to prove; In the present invention for can with each parts set forth more clear; Adopted similar terms such as " top ", " bottom " " top ", " below ", it should be interpreted as the relative position between the described parts, and is not the absolute location on the geometric meaning." embodiment ", " another embodiment ", " embodiment " that is spoken of in this manual simultaneously, etc., refer to the concrete characteristic, structure or the characteristics that combine this embodiment to describe and be included among at least one embodiment of the application's generality description.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification sheets.Further, when describing a concrete characteristic, structure or characteristics in conjunction with arbitrary embodiment, what institute will advocate is that other embodiment of combination realize that this characteristic, 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, these are revised and embodiment will drop within disclosed principle scope of the application and the spirit.More particularly, in the scope of, accompanying drawing open and claim, can carry out multiple modification and improvement to the building block and/or the layout of subject combination layout in the application.Except modification that building block and/or layout are carried out with improve, to those skilled in the art, other purposes also will be tangible.
Claims (10)
1. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag; Comprise fluidized-bed body (1), waste heat flue gas collector unit (2) and cloth wind feed back unit (3); It is characterized in that: described cloth wind feed back unit (3) places the bottom of fluidized-bed body (1); Waste heat flue gas collector unit (2) places the top of fluidized-bed body (1), and waste heat flue gas collector unit (2) is used to collect waste heat flue gas that heat exchange obtains and with its output; The inside of described fluidized-bed body (1) also is provided with the multilayer overcurrent plate (11) that is used to break up slag particle, and any side of fluidized-bed body (1) is provided with material inlet (12), and material inlet (12) is arranged on the top of overcurrent plate (11); Comprise wind-force generation device and many slag dropping tubes (31) in the described cloth wind feed back unit (3); The bottom of cloth wind feed back unit (3) is provided with discharge opening (32); Many slag dropping tubes (31) are installed in the below of multilayer overcurrent plate (11); And be connected with fluidized-bed body (1) inside; Be used for and will deliver near the discharge opening (32) through the slag particle behind the multilayer overcurrent plate (11), and a side of cloth wind feed back unit (3) also is provided with air intake vent (33), air intake vent is equipped with the wind-force generation device on (33); Make the inner generation in cloth wind feed back unit (3) air-flow upwards through the wind-force generation device, and air-flow passes through fluidized-bed body (1) and waste heat flue gas collector unit (2) successively.
2. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 1; It is characterized in that: described fluidized-bed body (1) inside also is provided with filtering net (13); And filtering net (13) places between material inlet (12) and the multilayer overcurrent plate (11); Be used to filter and bond together and slag particle that volume is bigger, and the side of fluidized-bed body (1) also is provided with aperture of door (14), described aperture of door (14) places the top of filtering net (13).
3. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 1 and 2; It is characterized in that: the xsect of described multilayer overcurrent plate (11) is for being trilateral or being similar to trilateral; And layering is fixed on the inboard of fluidized-bed body (1), and is vertically staggered form and arranges and form cellular structure.
4. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 1 and 2; It is characterized in that: described material inlet (12) is level or the downward-sloping any side that is arranged on fluidized-bed body (1); And near material inlet (12) also is provided with and is used to purge slag particle and makes it be distributed in the inner overfiren air port (15) of fluidized-bed body (1), and overfiren air port (15) places on fluidized-bed body (1) side of filtering net (13) top.
5. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 1 and 2; It is characterized in that: comprise tapered gas skirt (21) in the described waste heat flue gas collector unit (2) and turn to flue (22), and turn to fly-ash separator (23) also is installed on the flue (22).
6. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 5; It is characterized in that: described fly-ash separator (23) is tornado dust collector; It comprises fly-ash separator body (231); Fly-ash separator body (231) is provided with air flow inlet (232), air stream outlet (233) and ash port (234), and all is provided with standpipe expansion joint (235) on air flow inlet (232) and the ash port (234); The described steering angle that turns to flue (22) is 90 degree.
7. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 1 and 2; It is characterized in that: also comprise air distribution plate (34) in the described cloth wind feed back unit (3); Air distribution plate (34) is installed in the below of multilayer overcurrent plate (11); Described many slag dropping tubes (31) pass air distribution plate (34) and place the below of air distribution plate (34), and air distribution plate (34) top also is provided with the blast cap (35) of oblique perforate.
8. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 7; It is characterized in that: also be provided with an inclined-plane (36) to the inclination of air intake vent (33) direction in the described cloth wind feed back unit (3); The length of many slag dropping tubes (31) and this inclined-plane (36) adapt, and are installed in the wind-force generation device that air intake vent (33) locates and produce air-flow upwards by this inclined-plane (36); The side of described cloth wind feed back unit (3) also is provided with manhole device (37).
9. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 8; It is characterized in that: described cloth wind feed back unit (3) also is provided with tapered slag bucket (38); And slag bucket (38) places the below to inclined-plane (36) that air intake vent (33) direction tilts and many slag dropping tubes (31); Described discharge opening (32) is arranged on the bottom of slag bucket (38), and on the discharge opening (32) discharge valve (39) is installed; Described wind-force generation device is gas blower (4).
10. the fluidisation heat exchanger behind the dry type granulation blast-furnace slag according to claim 1; It is characterized in that: described fluidized-bed body (1), waste heat flue gas collector unit (2) and cloth wind feed back unit (3) are monobloc(k)type, and are coated by the fluidized-bed housing.
Priority Applications (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160624A (en) * | 2013-03-05 | 2013-06-19 | 江苏一同环保工程技术有限公司 | Device for using sensible heat of blast furnace slag with high efficiency |
| CN103940251A (en) * | 2014-05-14 | 2014-07-23 | 许宁 | Slag dry quenching waste heat recycling device and method |
| CN106969630A (en) * | 2017-04-13 | 2017-07-21 | 鲁玉弟 | Alumina roasting furnace vertical fluidized bed and powder flow cooling means |
| CN111074021A (en) * | 2019-12-04 | 2020-04-28 | 西安交通大学 | Uniform flow field air outlet structure for liquid slag dry-type centrifugal granulation system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2549331Y (en) * | 2002-04-26 | 2003-05-07 | 刘月明 | Fluid bed water and air cinder cooling device |
| CN1916491A (en) * | 2006-08-10 | 2007-02-21 | 上海锅炉厂有限公司 | Method for cooling bottom dregs at fluid bed boiler |
| KR20090036352A (en) * | 2007-10-09 | 2009-04-14 | 재단법인 포항산업과학연구원 | Apparatus for recycling heat of slag |
| JP4353706B2 (en) * | 2003-02-04 | 2009-10-28 | Ｊｆｅスチール株式会社 | Process for producing milled slag and facility for producing milled slag |
| CN101660014A (en) * | 2009-09-24 | 2010-03-03 | 中钢集团鞍山热能研究院有限公司 | Molten blast furnace slag sensible heat recovery method and device |
| CN101871025A (en) * | 2010-06-24 | 2010-10-27 | 陈瑞颖 | Metallurgical molten slag dry-type processing device and processing method thereof |
| CN101921884A (en) * | 2009-06-12 | 2010-12-22 | 中国科学院过程工程研究所 | Blast furnace slag dry-type sensible heat recovery system and production process |
| CN102331192A (en) * | 2011-08-29 | 2012-01-25 | 圣火科技(河南)有限责任公司 | Power generating device using waste heat of high temperature liquid material |
| CN202658170U (en) * | 2012-05-31 | 2013-01-09 | 四川川润股份有限公司 | Fluidization heat exchanger device for dry-type granulated blast-furnace slag |
-
2012
- 2012-05-31 CN CN2012101754933A patent/CN102719579B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2549331Y (en) * | 2002-04-26 | 2003-05-07 | 刘月明 | Fluid bed water and air cinder cooling device |
| JP4353706B2 (en) * | 2003-02-04 | 2009-10-28 | Ｊｆｅスチール株式会社 | Process for producing milled slag and facility for producing milled slag |
| CN1916491A (en) * | 2006-08-10 | 2007-02-21 | 上海锅炉厂有限公司 | Method for cooling bottom dregs at fluid bed boiler |
| KR20090036352A (en) * | 2007-10-09 | 2009-04-14 | 재단법인 포항산업과학연구원 | Apparatus for recycling heat of slag |
| CN101921884A (en) * | 2009-06-12 | 2010-12-22 | 中国科学院过程工程研究所 | Blast furnace slag dry-type sensible heat recovery system and production process |
| CN101660014A (en) * | 2009-09-24 | 2010-03-03 | 中钢集团鞍山热能研究院有限公司 | Molten blast furnace slag sensible heat recovery method and device |
| CN101871025A (en) * | 2010-06-24 | 2010-10-27 | 陈瑞颖 | Metallurgical molten slag dry-type processing device and processing method thereof |
| CN102331192A (en) * | 2011-08-29 | 2012-01-25 | 圣火科技(河南)有限责任公司 | Power generating device using waste heat of high temperature liquid material |
| CN202658170U (en) * | 2012-05-31 | 2013-01-09 | 四川川润股份有限公司 | Fluidization heat exchanger device for dry-type granulated blast-furnace slag |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160624A (en) * | 2013-03-05 | 2013-06-19 | 江苏一同环保工程技术有限公司 | Device for using sensible heat of blast furnace slag with high efficiency |
| CN103160624B (en) * | 2013-03-05 | 2015-02-11 | 江苏一同环保工程技术有限公司 | Device for using sensible heat of blast furnace slag with high efficiency |
| CN103940251A (en) * | 2014-05-14 | 2014-07-23 | 许宁 | Slag dry quenching waste heat recycling device and method |
| CN106969630A (en) * | 2017-04-13 | 2017-07-21 | 鲁玉弟 | Alumina roasting furnace vertical fluidized bed and powder flow cooling means |
| CN106969630B (en) * | 2017-04-13 | 2023-07-14 | 张金波 | Vertical fluidized bed of alumina roasting furnace and powder flow cooling method |
| CN111074021A (en) * | 2019-12-04 | 2020-04-28 | 西安交通大学 | Uniform flow field air outlet structure for liquid slag dry-type centrifugal granulation system |
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| CN102719579B (en) | 2013-12-18 |
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Application publication date: 20121010 Assignee: Sichuan CRUN Power Equipment Co., Ltd. Assignor: Sichuan Chuanrun Co., Ltd. Contract record no.: 2016510000014 Denomination of invention: Fluidized heat exchange device after slag of dry type granulating blast furnace Granted publication date: 20131218 License type: Exclusive License Record date: 20160805 |
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