CN202658170U - Fluidization heat exchanger device for dry-type granulated blast-furnace slag - Google Patents
Fluidization heat exchanger device for dry-type granulated blast-furnace slag Download PDFInfo
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- CN202658170U CN202658170U CN2012202527063U CN201220252706U CN202658170U CN 202658170 U CN202658170 U CN 202658170U CN 2012202527063 U CN2012202527063 U CN 2012202527063U CN 201220252706 U CN201220252706 U CN 201220252706U CN 202658170 U CN202658170 U CN 202658170U
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- bed body
- fluidized
- slag
- heat exchanger
- feed back
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a fluidization heat exchanger device for dry-type granulated blast-furnace slag and belongs to a waste heat utilization device in the metallurgy field. The fluidization heat exchanger device comprises a fluidized bed body, a waste heat flue gas collecting unit and an air distribution feed back unit, wherein the air distribution feed back unit is arranged at the lower part of the fluidized bed body, the waste heat flue gas collecting unit is arranged at the upper part of the fluidized bed body, and the waste heat flue gas collecting unit is used for collecting waste heat flue gas obtained through heat exchange and outputting the waste heat flue gas; a multiplayer transition plate used for scattering slag particles is also arranged in the fluidized bed body, a feed inlet is arranged at any side of the fluidized bed body, and the feed inlet is arranged above the multiplayer transition plate; and the fluidization heat exchanger device for dry-type granulated blast-furnace slag, provided by the utility model, is simple in structure, applicable to cooling various types of blast-furnace slag in an heat-exchanging manner, is particularly suitable for being used as a heat exchanger device in a waste heat continuous utilization system for continuous dry method treatment of blast-furnace slag, and is wide in application range.
Description
Technical field
The utility model relates to the residual heat using device in a kind of field of metallurgy, and in particular, the utility model relates generally to the fluidisation heat exchanger behind a kind of dry granulation blast-furnace slag.
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 the 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 the iron ore, ash content in the fuel and flux merge and just form liquid slag, and its general temperature is 1450～1650 ℃, regularly discharge from cinder notch, iron mouth.Usually will be called from the slag that cinder notch is discharged " upper slag ", from be called " the lower slag " of iron mouth in company with the molten iron discharge, often be mixed with a small amount of molten iron in the lower slag.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.Main component is CaO, MgO, SiO in the blast furnace slag
2And A1
2O
3, accounting for more than 95% of total amount, these four kinds of compositions can determine the metallurgical performance of blast furnace slag substantially.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 Ti0 in the slag
2, CaF
2More.In addition, also containing a small amount of FeO, MnO and CaS and some minor compounds in the slag, O.9 its basicity be generally～and 1.25.When blast-furnace smelting normally carried out, slag composition changed little, but sometimes needs to adjust in process of production charge composition, 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 slightly have 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 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 the 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; 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 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.There was the report that adopts using exhaust heat of slag flushing water to solve plant area's part heating or bathroom supplying hot water in the 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, only is about 10%, and is subjected to time and regional limits, and in summer with without the southern area of warming installation, this part energy can only be wasted, and therefore applies being restricted.As seen; the molten blast furnace slag dry granulation is processed and waste heat recovery just becomes 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 behind the dry granulation is utilized, will become one of core technology of whole molten slag Transforming Engineering.
Conventional dry granulation high temperature slag particle heat recovery technology directly passes into waste heat boiler equipment with the high temperature slag particle as heat source medium, carries out heat exchange by 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.
The utility model content
One of the purpose of this utility model is to solve above-mentioned deficiency; fluidisation heat exchanger behind a kind of dry granulation blast-furnace slag is provided; solve the technical problems such as the high temperature slag particle at heat transfer process the secondary caking occurs easily 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 utility model by the following technical solutions:
Provided by the utility model is fluidisation heat exchanger behind a kind of dry 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 top of fluidized-bed body, and waste heat flue gas collector unit be used for to be collected waste heat flue gas that heat exchange obtains and with its output; The inside of described fluidized-bed body also is provided be used to the multilayer overcurrent plate of breaing 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 bottom of cloth wind feed back unit is provided with discharge opening, many slag dropping tubes are installed in the below of multilayer overcurrent plate, and be connected with the fluidized-bed body interior, be used for and deliver near the discharge opening by the slag particle behind the multilayer overcurrent plate, and a side of cloth wind feed back unit 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 by 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 for the slag particle that filtration bonds together and volume is larger, 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 cross section 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.
Further technical scheme is: described material inlet is level or the downward-sloping any side that is arranged on the fluidized-bed body, and near also being provided with for purging slag particle of material inlet 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.
Further technical scheme 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.
Further technical scheme is: described fly-ash separator is tornado dust collector, and it comprises the fly-ash separator body, is provided with air flow inlet, air stream outlet and ash port on the fly-ash separator body, 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.
Further technical scheme 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.
Further technical scheme 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 side of described cloth wind feed back unit also is provided with the manhole device.
Further technical scheme 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 gas blower.
Further technical scheme is: described fluidized-bed body, waste heat flue gas collector unit and cloth wind feed back unit are monoblock type, and are coated by the fluidized-bed housing.
Compared with prior art, one of the beneficial effects of the utility model are: by the polynuclear plane of being arranged and forming in the fluidized-bed body interior by multilayer overcurrent plate, so that slag particle can fully be broken up after entering the fluidized-bed body, prevent generation secondary caking in heat transfer process, simultaneously at lower other passage also avoided in the larger slag particle obstruction fluidized-bed body of volume of assisting of filtering net and overfiren air port; And utilize air to carry out heat exchange as intermediate medium, 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 cause the slag particle heat exchange reclaim after in the middle of have the situation of moisture; And by 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 practical situation such as its granular size and speed of cooling speeds to be reclaimed; fluidisation heat-exchange device structure behind a kind of dry granulation blast-furnace slag provided by the utility model is simple simultaneously; be applicable to various types of blast-furnace slag heat exchange coolings; and be particularly suited for utilizing continuously the heat-exchanger rig in the system to use as the continuous dry process waste heat of blast-furnace slag, range of application is wide.
Description of drawings
Fig. 1 is for being used for the one-piece construction synoptic diagram of a kind of embodiment fluidisation of explanation the utility model heat exchanger;
Fig. 2 is for being used for the cloth wind feed back modular construction synoptic diagram of the another kind of embodiment of explanation the utility model;
Fig. 3 is for being used for the cyclone duster structure synoptic diagram of the another kind of embodiment of explanation the utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
Fig. 1 shows the one-piece construction of a kind of form of the utility model; referring to shown in Figure 1; the first embodiment of the present utility model is the fluidisation heat exchanger behind a kind of dry granulation blast-furnace slag; comprise 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 monoblock 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 carry out the heat energy trans-utilization for collecting the waste heat flue gas that heat exchange obtains and exporting them to other equipment; 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, be provided with material inlet 12 and enter and aforesaid slag particle is any side from fluidized-bed body 1, material inlet only need to be arranged on it top of aforesaid multilayer overcurrent plate 11 because 12 positions that arrange do 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 be connected with fluidized-bed body 1 inside, be used for and deliver near the discharge opening 32 by 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, 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 by 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 embodiment on basis of the utility model, slag particle is after entering fluidized-bed body 1 by material inlet 12, in the process that descends, be subject to the obstruction of multilayer overcurrent plate 11, so that it is broken up, and produce at the wind-force generation device under the effect of air-flow, the temperature of slag particle is fast-descending also, entering subsequently many slag dropping tubes 31 continues to descend, discharged by discharge opening 32 at last, the hot gas flow that produces in the slag particle process of cooling 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 above-described embodiment, for preventing that slag particle is bonded together, perhaps the excessive slag particle of volume own is stuck in the multilayer overcurrent plate 11 and can't descends, so that the follow-up slag particle that enters through material inlet 12 stops up, therefore preferred as the utility model above-described embodiment, in the structure of above-described embodiment technical scheme, also can do following improvement, set up filtering net 13 in fluidized-bed body 1 inside, and filtering net 13 places between material inlet 12 and the multilayer overcurrent plate 11, the slag particle that enters 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 in the side of fluidized-bed body 1 aperture of door 14 to be set, 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 is bonded together for having deposited at filtering net 13, volume is larger, open the slag particle on the filtering net 13 is removed, can't enter again the inside of fluidized-bed body 1 with the slag particle that prevents from being entered by material inlet 12.Aforementioned mentioning increased the structure of filtering net 13 with aperture of door 14, can be used as relative preferred another embodiment with above-mentioned basic embodiment of the utility model.
Continuation is in conjunction with the technical scheme of above-mentioned two embodiment, the multilayer overcurrent plate 11 of wherein mentioning is structures that fluidized-bed body 1 internal main is wanted, also be to break up slag particle in the utility model and delay its lowering speed to reach one of primary structure that fully dispels the heat by air-flow, structure for multilayer overcurrent plate 11, preferred a kind of structure formation is that its cross section is set to trilateral or is similar to leg-of-mutton shape, on the medial surface that is fixed on fluidized-bed body 1 of layering, arrange and then form cellular structure by 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 utility model is more preferably.
The contriver is when testing with the fluidisation heat exchanger behind the dry granulation blast-furnace slag of above-mentioned example structure; although find that it has solved and break up slag particle; and delay its lowering speed to make fully heat radiation of air-flow realization by the wind-force generation device; and reclaim the technical problem such as heat; but owing to its one-piece construction need to reclaim the high-temperature flue gas air-flow to do the reason of his usefulness; material inlet 12 can only be arranged on the side of fluidized-bed body 1; therefore easily cause slag particle skewness when entering fluidized-bed body 1 inside in actual the use; multilayer overcurrent plate 11 local slag particles are by too intensive; and local slag particle is by too loose; therefore this situation that is left to be desired for the utility model; 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; near and the overfiren air port 15 that also is provided with of material inlet 12; and overfiren air port 15 places 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 of configuration; 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 the utility model cloth wind feed back unit 3, referring to shown in Figure 2, the wind-force generation device of mentioning except comprising above-described embodiment in the cloth wind feed back unit 3, outside many slag dropping tubes 31 and discharge opening 32 and the air intake vent 33, also comprise air distribution plate 34, 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 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 mobile smoothly by air distribution plate 34, slag particle then enters many slag dropping tubes 31 inside, and the purpose of blast cap 35 oblique perforates is for preventing that slag particle from entering blast cap 35 and stopping up.And wind-force generation device illustrated in fig. 2 is gas blower 4.
Simultaneously on above-mentioned cloth wind feed back unit 3 architecture basics, for so that the side directly upwards flowed by the air-flow that air intake vent 33 enters 3 inside, cloth wind feed back unit, the inside that is preferably in cloth wind feed back unit 3 arranges an inclined-plane 36 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 through multilayer overcurrent plate to cool off 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 entered by this hole and overhaul, so manhole device 37 aperture arranges and will can satisfy the inside that the maintainer enters heat exchanger.
On the basis of above-mentioned cloth wind feed back unit 3 structures, the embodiment that is more preferably for the utility model 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 inclined-plane 36 that air intake vent 33 directions tilt and the below of many slag dropping tubes 31, 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 is conducive to converging of high-temperature flue gas, and turn to fly-ash separator 23 also is installed on the flue 22, the acting as of fly-ash separator 23 removed the dust in the high-temperature flue gas air-flow that the slag particle cooling produces, 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 utility model, referring to shown in Figure 3, fly-ash separator 23 is tornado dust collector, it comprises fly-ash separator body 231, be provided with air flow inlet 232, air stream outlet 233 and ash port 234 on the fly-ash separator body 231, and all be 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 swollen poor that the metal heat-expansion shrinkage 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, more clear for what all parts can be set forth in the utility model, the similar terms such as " top ", " bottom " " top ", " below " have been adopted, 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 speaks of in this manual simultaneously, etc., the specific features, structure or the characteristics that refer in conjunction with this embodiment description are 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.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 drop in the scope of the present utility model.
Although with reference to a plurality of explanatory embodiment of the present utility model the utility model is described 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 embodiment will drop within 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 also will be obvious.
Claims (10)
1. the fluidisation heat exchanger behind the dry 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) be used for to be collected waste heat flue gas that heat exchange obtains and with its output; The inside of described fluidized-bed body (1) also is provided be used to the multilayer overcurrent plate (11) of breaing 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 deliver near the discharge opening (32) by 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), and air intake vent is equipped with the wind-force generation device on (33).
2. the fluidisation heat exchanger behind the dry 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 for the slag particle that filtration bonds together and volume is larger; and the side of fluidized-bed body (1) also is provided with aperture of door (14), and described aperture of door (14) places the top of filtering net (13).
3. the fluidisation heat exchanger behind the dry granulation blast-furnace slag according to claim 1 and 2; it is characterized in that: the cross section 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 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 also being provided with for purging slag particle of material inlet (12) 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 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 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), be provided with air flow inlet (232), air stream outlet (233) and ash port (234) on the fly-ash separator body (231), and all be 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 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 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 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 to the below of the 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 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 monoblock type, and are coated by the fluidized-bed housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202527063U CN202658170U (en) | 2012-05-31 | 2012-05-31 | Fluidization heat exchanger device for dry-type granulated blast-furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202527063U CN202658170U (en) | 2012-05-31 | 2012-05-31 | Fluidization heat exchanger device for dry-type granulated blast-furnace slag |
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| Publication Number | Publication Date |
|---|---|
| CN202658170U true CN202658170U (en) | 2013-01-09 |
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| CN2012202527063U Expired - Fee Related CN202658170U (en) | 2012-05-31 | 2012-05-31 | Fluidization heat exchanger device for dry-type granulated blast-furnace slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719579A (en) * | 2012-05-31 | 2012-10-10 | 四川川润股份有限公司 | Fluidized heat exchange device after slag of dry type granulating blast furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719579A (en) * | 2012-05-31 | 2012-10-10 | 四川川润股份有限公司 | Fluidized heat exchange device after slag of dry type granulating blast furnace |
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