CN107151715A - A kind of blast furnace water-flushing-slag apparatus and technique based on itself permeation filtration - Google Patents
A kind of blast furnace water-flushing-slag apparatus and technique based on itself permeation filtration Download PDFInfo
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- CN107151715A CN107151715A CN201710522623.9A CN201710522623A CN107151715A CN 107151715 A CN107151715 A CN 107151715A CN 201710522623 A CN201710522623 A CN 201710522623A CN 107151715 A CN107151715 A CN 107151715A
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- 239000002893 slag Substances 0.000 title claims abstract description 234
- 238000001914 filtration Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 159
- 239000003818 cinder Substances 0.000 claims abstract description 71
- 239000002245 particle Substances 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 238000005469 granulation Methods 0.000 claims abstract description 12
- 230000003179 granulation Effects 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 54
- 239000013078 crystal Substances 0.000 claims description 54
- 238000005406 washing Methods 0.000 claims description 33
- 238000004080 punching Methods 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 14
- 210000000498 stratum granulosum Anatomy 0.000 claims description 11
- 230000008595 infiltration Effects 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims 1
- 239000000706 filtrate Substances 0.000 abstract description 20
- 230000009467 reduction Effects 0.000 abstract description 7
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 238000006722 reduction reaction Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 208000002352 blister Diseases 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
It is provided with itself permeatable filter layer in a kind of blast furnace water-flushing-slag apparatus and technique based on itself permeation filtration, including filter tank, the filter tank, granulated blast fumace grain slag is carried out itself permeation filtration with this as filter layer and realizes that pulp water is separated by itself permeatable filter layer.Itself permeatable filter layer is laid in the support frame in the filter tank, and support frame as described above is used for supporting itself permeatable filter layer.Realize that pulp water is separated as itself permeatable filter layer using granulated blast fumace grain slag：Itself filter layer is used as using qualified grain slag particle; it is layed in filter tank in itself permeatable filter layer support frame; the filtrate of various heterogeneous (multilayer) structures is not re-layed in filter tank; slag-water slurry after flushing cinder granulation is fallen into behind filter tank; pass through the continuous permeation filtration principle of itself filter layer; slag-water slurry is separated, the grain slag particle of filtering layer retention is dehydrated with the continuous reduction of water level in filter tank.
Description
Technical field
The present invention relates to technical field of blast furnace process, and in particular to a kind of blast furnace water slag-flushing dress based on itself permeation filtration
Put and technique, more particularly to a kind of grain slag produced by blast furnace itself carries out the blast furnace water-flushing-slag apparatus of itself permeation filtration
And technique with realize pulp water separate.
Background technology
Blast furnace slag is the high-temperature fusion silicates material discharged when blase furnace cast iron is smelted from blast furnace.In blast furnace process
When, the compositions such as iron ore, fuel (coke) and flux are added from furnace roof, and hot blast and coal dust are blown into from air port, hot blast with
There is provided load melting heat and the reducing agent of reduction of iron ore in tuyere zone burning for the fuel such as coke, coal dust so that containing iron furnace
Material is constantly reduced and heated, when in-furnace temperature reaches 1400~1500 DEG C, material melting becomes liquid during decline
Phase, by fully fusing and reduction reaction, liquid phase clinker floats over molten iron upper strata, by iron mouthful through the separation of sow skimming tool or slag
Mouth discharge, here it is blast furnace cinder.In modern blast furnace ironmaking production, the processing of blast furnace cinder is mainly carried out using water quenching method,
I.e. flush slag technique, accounts for blast furnace cinder processing more than 90%, dry Slag treatment mode is just used only in emergency management.
Bottom filter method is to use most Handling Blast Furnace Granulated Slag methods at present.Its technical process is:Blast furnace cinder is by porous spray
The high speed water of head (pelletizer) injection is carried out after water quenching, and the agitated groove of slag-water slurry (guiding device) enters filtering ponds.Filtering
The cobblestone filtrate of bottom laying multilayer (generally 3~4 layers) different-diameter in pond is filtered to slag-water slurry, by pulp water
Separation.Washing slag water after filtering continues cycling through utilization by pumping plant.Grain slag in filtering ponds by grab bucket directly catch entrucking (or
Belt feeder) outward transport.The residues processing technique is few due to equipment, invests small, maintenance cost is few, easy to operate, obtained grain slag quality
Good, sewage is without outer row, and power consumption is low, and integrated operation cost is low, is Handling Blast Furnace Granulated Slag technique widely used at present.
On the other hand, the key that the Handling Blast Furnace Granulated Slag technique of method is filtered the bottom of using is selection and the paving of filtering layer of filtering material particle
If.It is general from cobblestone as filtrate, lay the fine grained cobblestone of minor diameter on the upper strata of filtering layer, successively downward filtering layer
Filtering material particle diameter constantly increases, and the cobblestone that the bottom of filtering layer is about 20mm from diameter is constituted.Due to cobblestone filter
The density of material is higher, and thickness is big, after laying multilayer cobblestone filtrate, big to the pressure of filter tank bottom, and slag-water slurry
Into after filter tank, pressure is bigger；Simultaneously because the high speed of slag-water slurry is flowed into, grain slag particle is easy to directly into filtering layer,
Destroy the sandwich construction of filtering layer；The fine particle and suspension of slag-water slurry, filtering is constantly rested on the impact of current
In duct, formed and blocked；When the water hardness of washing slag water is big, as water temperature is raised after flushing cinder, calcium ions and magnesium ions are separated out in filtrate
Duct gap, causes filtering layer to occur hardened.All these problems, once occurring, will cause filter in multi-layer thick layer filter structure
The filter capacity of layer is drastically reduced, and rate of filtration fluctuation is uneven, ultimately causes filtering layer blocking, it is impossible to carry out normal filtration, must not
Filtrate is not changed, substantial amounts of discarded object can be also produced during increasing maintenance cost, filter material replacement.
The content of the invention
To solve the above problems, the invention provides a kind of blast furnace water-flushing-slag apparatus based on itself permeation filtration and work
Skill, realizes that pulp water is separated as itself permeatable filter layer using granulated blast fumace grain slag：Using qualified grain slag particle conduct
Itself filter layer, is layed in filter tank in itself permeatable filter layer support frame, does not re-lay various heterogeneous (multilayers) knot in filter tank
Slag-water slurry after the filtrate of structure, flushing cinder granulation is fallen into behind filter tank, by the continuous permeation filtration principle of itself filter layer, will
Slag-water slurry is separated, and the grain slag particle of filtering layer retention is dehydrated with the continuous reduction of water level in filter tank.
The present invention is specific as follows：
Itself is provided with a kind of blast furnace water-flushing-slag apparatus based on itself permeation filtration, including filter tank 2, the filter tank 2
Permeatable filter layer 1, itself permeatable filter layer 1 carries out itself permeation filtration with this using granulated blast fumace grain slag as filter layer
Realize that pulp water is separated.
Further, itself permeatable filter layer 1 is the homogeneity grain slag stratum granulosum of blast fumance, the grain slag stratum granulosum
Thickness range be 100mm~800mm, the diameter range of the grain slag particle in the grain slag stratum granulosum is 0.5mm~6mm.
Further, itself permeatable filter layer 1 is laid in the support frame 3 in the filter tank 2, the support
Frame 3 is used for supporting itself permeatable filter layer 1.Itself permeatable filter layer 1 includes some rectangular-shape grain slag stratum granulosums
Unit, support frame as described above 3 is fixed on the inwall in the filter tank 2, and support frame as described above 3 includes trellis steelframe 14, the trellis steel
Each lattice in frame 14 are all a through slots, and each slag case 15, the top of the slag case 15 are fixed with each through slot
All it is provided with bottom wall and side wall for opening shape and the slag case 15 in through hole, the slag case 15 and is filled with grain slag stratum granulosum list
Member.The through slot is rectangular-shape, and the slag case 15 is rectangular-shape, and the through hole is circular hole.The other trellis steel
Frame 14 can be with the upright supports being fixed on the bottom wall in the filter tank 2 in the filter tank 2.
Further, the outlet in the filter tank 2 is connected with being evenly distributed on the collecting pipe 4 of the bottom of filter tank 2, described
The connecting portion of the outlet in collecting pipe 4 and the filter tank 2 is in the lower section of itself permeatable filter layer 1.
Further, it is that the blast furnace water-flushing-slag apparatus based on itself permeation filtration is configured with molten cinder spout 5
Pelletizer 6 and the tank diameter 7 of molten cinder spout front end, the pelletizer 6 are used for spraying washing slag water handle from the molten cinder spout 5
The blast furnace cinder of outflow smashes and blast furnace cinder formation is flowed into the slag-water slurry of tank diameter 7, and the tank diameter 7 is used for handle
Slag-water slurry depth is granulated and is cooled into grain slag crystal grain；
The outlet of the tank diameter 7 is connected with guiding device 8, and the filter is configured in the outlet of the guiding device 8
Pond 2, the guiding device 8 is used for the grain slag crystal grain to import in the filter tank 2, and itself permeatable filter layer 1 is used with this
The grain slag crystal grain is filtered；
The collecting pipe 4 is connected with the pelletizer 6.
Further, the collecting pipe 4 is with the structure that the pelletizer 6 is connected：
The collecting pipe 4 is connected by being provided with the pipeline of upper tower pump 9 with the water inlet of cooling tower 10, the cooling tower
10 delivery port is connected by pipeline with the inside of water cooling pond 11, and the delivery port of the water cooling pond 11 is by being provided with recirculated water
The pipeline of pump 12 is connected with the pelletizer 6.
Further, the pelletizer 6 can be substituted with Punched box or granulation head, and the tank diameter 7 can use grain
Change tower or sluice to substitute.
Further, the technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration, specific as follows：
The washing slag water that the blast furnace cinder flowed out from molten cinder spout 5 sprays through pelletizer 6 is smashed blast furnace melted to realize
The punching of slag, the blast furnace cinder after punching is formed slag-water slurry, and slag-water slurry subsequently enters tank diameter 7 and carries out depth
It is granulated and cools down to form grain slag crystal grain, the grain slag crystal grain that grain slag crystal grain is discharged through guiding device 8, which enters, uses grain slag in filter tank 2
The method of itself permeation filtration carries out pulp water separation.
Further, the grain slag crystal grain enters the method progress pulp water point using grain slag itself permeation filtration in filter tank 2
From concrete mode be：
The slag particle of grain slag crystal grain is trapped on itself permeatable filter layer 1 by itself permeatable filter layer 1 in the filter tank 2
Face, as the decline of filtering water level realizes that grain slag crystal grain is dehydrated, and the washing slag water after being filtered through itself permeatable filter layer 1 is by collecting
Pipe is exported from filter tank 2 again after collecting.
Further, the grain slag crystal grain after the dehydration grabs bucket or taken slag device to load vehicle or belt feeder outward transport；Cross
Washing slag water after filter sends into cooling tower by upper tower pump 8 and carries out heat exchange cooling, the cold water feeding cooling bay after heat exchange cooling, cold water
Continuation flushing cinder in the pelletizer 6 is sent to by water circulating pump 12 again to use；Or without cooling tower cooler, the flushing cinder after filtering
Water 13 is directly sent to carry out hot flushing cinder in the pelletizer 6.
Beneficial effects of the present invention are：
The present invention smashes the washing slag water that the blast furnace cinder flowed out from molten cinder spout 5 sprays through pelletizer 6 to realize pair
The punching of blast furnace cinder, the blast furnace cinder after punching is formed slag-water slurry, and slag-water slurry subsequently enters tank diameter 7 and entered
Row depth is granulated and cooled down to form grain slag crystal grain, and the grain slag crystal grain that grain slag crystal grain is discharged through guiding device 8 enters to be adopted in filter tank 2
Pulp water separation is carried out with the method for grain slag itself permeation filtration, the difference that the technique filters method with traditional bottom is：
First, filtrate is the grain slag particle from blast furnace itself；
Second, the multistage filtering layer such as traditional cobblestone is no longer set.The grain slag particle of blast furnace punching is penetrated as itself
Filtering layer, while filter water quality is ensured, reduces the laying cost and maintenance cost of traditional bottom filter method filtrate.
And the technique of the present invention can clear up replacing at any time after the filter capacity reduction when itself permeatable filter layer；No
Occur that the filtering layer that traditional filtering layer occurs is disorderly, ooze and wear the influence such as slag particle, hardened (fouling) filter capacity and can not handle in time again
The phenomenon of recovery；Heterogeneous (non-grain slag) filtering layer such as cobblestone cleaning recover filter capacity when to consume substantial amounts of manpower and when
Between, or even the pollution of discarded object can be caused, and homogeneity (grain slag) itself permeatable filter layer can then realize recycling for itself.
Brief description of the drawings
Fig. 1 is the filter tank structure schematic diagram for being provided with itself permeatable filter layer of the invention；
Fig. 2 is the process schematic representation of the blast furnace water-flushing-slag apparatus based on itself permeation filtration of the present invention；
Fig. 3 is the overall diagram of the cabinet of the present invention；
Fig. 4 is the exploded view of the cabinet of the present invention；
Fig. 5 is the side view of the cabinet of the present invention；
Fig. 6 is the schematic diagram of the drainage piece of the present invention；
Fig. 7 is partial schematic diagram of the invention.
Fig. 8 is the part-structure schematic diagram of the support frame of the present invention.
Embodiment
The present invention is described further below in conjunction with drawings and examples.
Embodiment 1
As Figure 1-Figure 8, in the blast furnace water-flushing-slag apparatus based on itself permeation filtration, including filter tank 2, the filter tank 2
Itself permeatable filter layer 1 is provided with, itself permeatable filter layer 1 carries out granulated blast fumace grain slag as filter layer itself to ooze
Realize that pulp water is separated through filter with this.
It is laid on as itself permeatable filter layer 1 described in blast furnace water slag-flushing in the support frame 3 in the filter tank 2,
Support frame as described above 3 is used for supporting itself permeatable filter layer 1.Itself permeatable filter layer 1 includes some rectangular-shape water
Solid impurity particle layer unit, support frame as described above 3 is fixed on the inwall in the filter tank 2, and support frame as described above 3 includes trellis steelframe 14, institute
It is all a through slot to state each lattice in trellis steelframe 14, and each slag case 15, the slag case are fixed with each through slot
15 top is all to be provided with through hole, the slag case 15 to be filled with grain slag on opening shape and the bottom wall and side wall of the slag case 15
Particle layer unit.The through slot is rectangular-shape, and the slag case 15 is rectangular-shape, and the through hole is circular hole.Other institute
Stating trellis steelframe 14 can be with the upright supports being fixed on the bottom wall in the filter tank 2 in the filter tank 2.
Because the speed of the slag-water slurry of inflow is fast, punching easily is produced to the upper surface of itself permeatable filter layer of laying
Hit, destroy the filtration of itself permeatable filter layer, therefore, realized using filter layer support frame to itself infiltration in filtering ponds
The support of filter layer.
The outlet of the bottom of filter tank 2 is connected with being evenly distributed on the collecting pipe 4 of the bottom of filter tank 2, described to collect
The connecting portion of the outlet in pipe 4 and the filter tank 2 itself is penetrated in the lower section of itself permeatable filter layer 1 by described
Washing slag water after the filtering of filtering layer 1 excludes from filter tank 2 after the collecting pipe 4 collection, follows washing slag water after walking process after progress
Ring is used.
The He of pelletizer 6 under molten cinder spout 5 is configured with for the blast furnace water-flushing-slag apparatus based on itself permeation filtration
The tank diameter 7 of the molten front end of cinder spout 5, the pelletizer 6 is used for ejection washing slag water handle at a high speed and flowed out from the molten cinder spout 5
Blast furnace cinder smash and blast furnace cinder formation flow into tank diameter 7 slag-water slurry, and the tank diameter 7 be used for pulp water
Mixture depth is granulated and is cooled into grain slag crystal grain.
The outlet of the tank diameter 7 is connected with guiding device 8, and the filter is configured in the outlet of the guiding device 8
Pond 2, the guiding device 8 is used for itself permeatable filter layer 1 described in the grain slag crystal grain importing filter tank 2 to carry out
Filter；
The collecting pipe 4 is connected with the pelletizer 6.
The structure that the collecting pipe 4 is connected with the pelletizer 6 is：
The technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration, it is specific as follows：
The washing slag water that the blast furnace cinder flowed out from molten cinder spout 5 sprays through pelletizer 6 is smashed blast furnace melted to realize
The punching of slag, the blast furnace cinder after punching is formed slag-water slurry, and slag-water slurry subsequently enters tank diameter 7 and carries out depth
It is granulated and cools down to form grain slag crystal grain, the grain slag crystal grain that grain slag crystal grain is discharged through guiding device 8, which enters, uses grain slag in filter tank 2
The method of itself permeation filtration carries out pulp water separation, and qualified grain slag grain and the recirculated water after purification are obtained with this.
The grain slag crystal grain enters the specific side of the method progress pulp water separation using grain slag itself permeation filtration in filter tank 2
Formula is：
The slag particle of grain slag crystal grain is trapped on itself permeatable filter layer 1 by itself permeatable filter layer 1 in the filter tank 2
Face, as the decline of filtering water level realizes that grain slag crystal grain is dehydrated, can be achieved anhydrous (not dropping down water) scarfing cinder, and through itself permeation filtration
Layer 1 filtering after washing slag water by collecting pipe collect after again from filter tank 2 export.
The present embodiment has the beneficial effect that：
The present embodiment smashes the washing slag water that the blast furnace cinder flowed out from molten cinder spout 5 sprays through pelletizer 6 to realize
Punching to blast furnace cinder, the blast furnace cinder after punching is formed slag-water slurry, and slag-water slurry subsequently enters tank diameter 7
Carry out depth granulation and cool down to form grain slag crystal grain, the grain slag crystal grain that grain slag crystal grain is discharged through guiding device 8 enters in filter tank 2
Pulp water separation is carried out using the method for grain slag itself permeation filtration, the difference that the technique filters method with traditional bottom is：
First, filtrate is the grain slag particle from blast furnace itself；
Second, the multistage filtering layer such as traditional cobblestone is no longer set.The grain slag particle of blast furnace punching is penetrated as itself
Filtering layer, while filter water quality is ensured, reduces the laying cost and maintenance cost of traditional bottom filter method filtrate.
And the technique of the present embodiment can clear up replacing at any time after the filter capacity reduction when itself permeatable filter layer；
Be not in that the filtering layer that occurs of traditional filtering layer is disorderly, ooze and wear the influence such as slag particle, hardened (fouling) filter capacity and can not locate in time again
Manage the phenomenon recovered；Heterogeneous (non-grain slag) filtering layer such as cobblestone cleaning recover filter capacity when to consume substantial amounts of manpower and when
Between, or even the pollution of discarded object can be caused, and homogeneity (grain slag) itself permeatable filter layer can then realize recycling for itself.
Embodiment 2
Based on the blast furnace water-flushing-slag apparatus of itself permeation filtration, including filter tank 2, itself infiltration is provided with the filter tank 2
Granulated blast fumace grain slag is carried out itself permeation filtration as filter layer and realized with this by filter layer 1, itself permeatable filter layer 1
Pulp water is separated.
Itself permeatable filter layer 1 is laid in the support frame 3 in the filter tank 2, and support frame as described above 3 is used for branch
Support itself permeatable filter layer 1.Itself permeatable filter layer 1 includes some rectangular-shape grain slag particle layer units, described
Support frame 3 is fixed on the inwall in the filter tank 2, and support frame as described above 3 includes every in trellis steelframe 14, the trellis steelframe 14
One lattice are all a through slots, and each slag case 15 is fixed with each through slot, the top of the slag case 15 for opening shape and
All it is provided with the bottom wall and side wall of the slag case 15 in through hole, the slag case 15 and is filled with grain slag particle layer unit.It is described to pass through
Groove is rectangular-shape, and the slag case 15 is rectangular-shape, and the through hole is circular hole.The other trellis steelframe 14 can be used
The upright supports on the bottom wall in the filter tank 2 are fixed in the filter tank 2.
Because the speed of the slag-water slurry of inflow is fast, punching easily is produced to the upper surface of itself permeatable filter layer of laying
Hit, destroy the filtration of itself permeatable filter layer, therefore, realized using filter layer support frame to itself infiltration in filtering ponds
The support of filter layer.
The outlet of the bottom of filter tank 2 is connected with being evenly distributed on the collecting pipe 4 of the bottom of filter tank 2, is uniformly distributed
Collecting pipe 4 in the bottom of filter tank 2 can realize evenly distributing for filter water, be conducive to the emptying of filter tank bottom filter water, often
Individual filter tank bottom collects the washing slag water after filtering using equally distributed collecting conduit, and the purpose is to obtain solid carbon dioxide slag.It is described to receive
The connecting portion of the outlet in collector 4 and the filter tank 2 is in the lower section of itself permeatable filter layer 1, by itself infiltration
Washing slag water after the filtering of filter layer 1 is excluded after the collecting pipe 4 collection from filter tank 2, is walked washing slag water after progress after process
Recycle.
The He of pelletizer 6 under molten cinder spout 5 is configured with for the blast furnace water-flushing-slag apparatus based on itself permeation filtration
The tank diameter 7 of molten cinder spout front end, the pelletizer 6 is used for ejection washing slag water handle at a high speed and flowed out from the molten cinder spout 5
Blast furnace cinder smash and blast furnace cinder formation flow into tank diameter 7 slag-water slurry, and the tank diameter 7 be used for pulp water
Mixture depth is granulated and is cooled into grain slag crystal grain；
The outlet of the tank diameter 7 is connected with guiding device 8, and the filter is configured in the outlet of the guiding device 8
Pond 2, the guiding device 8 is used for itself permeatable filter layer 1 described in the grain slag crystal grain importing filter tank 2 to carry out
Filter；
The collecting pipe 4 is connected with the pelletizer 6.
The structure that the collecting pipe 4 is connected with the pelletizer 6 is：
The collecting pipe 4 is connected by being provided with the pipeline of upper tower pump 9 with the water inlet of cooling tower 10, the cooling tower
10 delivery port is connected by pipeline with the inside of water cooling pond 11, and the delivery port of the water cooling pond 11 is by being provided with recirculated water
The pipeline of pump 12 is connected with the pelletizer 6.
The pelletizer 6 can be substituted with Punched box or granulation head, and the tank diameter 7 can use granulation tower or flushing cinder
Ditch is substituted.
The technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration, it is specific as follows：
The washing slag water that the blast furnace cinder flowed out from molten cinder spout 5 sprays through pelletizer 6 is smashed blast furnace melted to realize
The punching of slag, the blast furnace cinder after punching is formed slag-water slurry, and slag-water slurry subsequently enters tank diameter 7 and carries out depth
It is granulated and cools down to form grain slag crystal grain, the grain slag crystal grain that grain slag crystal grain is discharged through guiding device 8, which enters, uses grain slag in filter tank 2
The method of itself permeation filtration carries out pulp water separation, and qualified grain slag grain and the recirculated water after purification are obtained with this.
The grain slag crystal grain enters the specific side of the method progress pulp water separation using grain slag itself permeation filtration in filter tank 2
Formula is：
The slag particle of grain slag crystal grain is trapped on itself permeatable filter layer 1 by itself permeatable filter layer 1 in the filter tank 2
Face, as the decline of filtering water level realizes that grain slag crystal grain is dehydrated, can be achieved anhydrous (not dropping down water) scarfing cinder, and through itself permeation filtration
Layer 1 filtering after washing slag water by collecting pipe collect after again from filter tank 2 export.
Grain slag crystal grain after the dehydration grabs bucket or taken slag device to load vehicle or belt feeder outward transport；Flushing cinder after filtering
Water sends into cooling tower by upper tower pump 8 and carries out heat exchange cooling, and the cold water feeding cooling bay after heat exchange cooling, cold water passes through circulation again
Water pump 12 is sent to continuation flushing cinder in the pelletizer 6 and used；Or without cooling tower cooler, the washing slag water after filtering is directly sent to
Continue hot flushing cinder in the pelletizer 6.
The present embodiment has the beneficial effect that：
Itself permeatable filter layer of the present embodiment be using blast furnace grain slag particle as filter layer, realize blast furnace water slag-flushing
It is used as filter layer there is no the filtrate of other materials below the separation of slag-water slurry, itself permeatable filter layer, item can be saved
Mesh is invested and maintenance cost.Grain slag crystal grain is through after itself permeatable filter layer itself permeation filtration, the particle content of washing slag water is small
It is less than 12% in finished product grain slag moisture content after 30mg/L, filtering means dehydration.The water of washing slag water after being filtered through itself permeatable filter layer
Matter is good, and upper tower pump and slag flushing pump equipment attrition are low, and evaporated water is few, and power consumption is low, and all devices can be circulated by industrial water purification
Condition is selected.To ensure that the grain slag crystal grain that itself permeatable filter layer is not flowed into destroys its infiltration structure, itself is penetrated
Filtering layer is protected using support frame and " slag case ", impact failure of the grain slag crystal grain to itself permeatable filter layer is reduced, when itself
When permeatable filter layer filter capacity is reduced, it can be changed in time, it is not necessary to wait blast furnace synchronously maintenance.
Embodiment 3
Based on the blast furnace water-flushing-slag apparatus of itself permeation filtration, including filter tank 2, itself infiltration is provided with the filter tank 2
Granulated blast fumace grain slag is carried out itself permeation filtration as filter layer and realized with this by filter layer 1, itself permeatable filter layer 1
Pulp water is separated.
Itself permeatable filter layer 1 is the homogeneity grain slag stratum granulosum of blast fumance, the thickness model of the grain slag stratum granulosum
Enclose for 100mm~800mm, the diameter range of the grain slag particle in the grain slag stratum granulosum is 0.5mm~6mm.
Itself permeatable filter layer 1 is laid in the support frame 3 in the filter tank 2, and support frame as described above 3 is used for branch
Support itself permeatable filter layer 1.Itself permeatable filter layer 1 includes some rectangular-shape grain slag particle layer units, described
Support frame 3 is fixed on the inwall in the filter tank 2, and support frame as described above 3 includes every in trellis steelframe 14, the trellis steelframe 14
One lattice are all a through slots, and each slag case 15 is fixed with each through slot, the top of the slag case 15 for opening shape and
All it is provided with the bottom wall and side wall of the slag case 15 in through hole, the slag case 15 and is filled with grain slag particle layer unit.It is described to pass through
Groove is rectangular-shape, and the slag case 15 is rectangular-shape, and the through hole is circular hole.The other trellis steelframe 14 can be used
The upright supports on the bottom wall in the filter tank 2 are fixed in the filter tank 2.
Because the speed of the slag-water slurry of inflow is fast, punching easily is produced to the upper surface of itself permeatable filter layer of laying
Hit, destroy the filtration of itself permeatable filter layer, therefore, realized using filter layer support frame to itself infiltration in filtering ponds
The support of filter layer.
The outlet of the bottom of filter tank 2 is connected with being evenly distributed on the collecting pipe 4 of the bottom of filter tank 2, is uniformly distributed
Collecting pipe 4 in the bottom of filter tank 2 can realize evenly distributing for filter water, be conducive to the emptying of filter tank bottom filter water, often
Individual filter tank bottom collects the washing slag water after filtering using equally distributed collecting conduit, and the purpose is to obtain solid carbon dioxide slag.It is described to receive
The connecting portion of the outlet in collector 4 and the filter tank 2 is in the lower section of itself permeatable filter layer 1, by itself infiltration
Washing slag water after the filtering of filter layer 1 is excluded after the collecting pipe 4 collection from filter tank 2, is walked washing slag water after progress after process
Recycle.
The pelletizer 6 under the molten side of cinder spout 5 is configured with for the blast furnace water-flushing-slag apparatus based on itself permeation filtration
With the tank diameter 7 of molten cinder spout front end, the washing slag water handle that the pelletizer 6 is sprayed with high speed flows from the molten cinder spout 5
The blast furnace cinder gone out smashes and blast furnace cinder formation is flowed into the slag-water slurry of tank diameter 7, and the tank diameter 7 is used for slag
Aqueous mixtures depth is granulated and is cooled into grain slag crystal grain；
The outlet of the tank diameter 7 is connected with guiding device 8, and the filter is configured in the outlet of the guiding device 8
Pond 2, the guiding device 8 is used for itself permeatable filter layer 1 described in the grain slag crystal grain importing filter tank 2 to carry out
Filter；
The collecting pipe 4 is connected with the pelletizer 6.
The structure that the collecting pipe 4 is connected with the pelletizer 6 is：
The collecting pipe 4 is connected by being provided with the pipeline of upper tower pump 9 with the water inlet of cooling tower 10, the cooling tower
10 delivery port is connected by pipeline with the inside of water cooling pond 11, and the delivery port of the water cooling pond 11 is by being provided with recirculated water
The pipeline of pump 12 is connected with the pelletizer 6.
The pelletizer 6 can be substituted with Punched box or granulation head, and the tank diameter 7 can use granulation tower or flushing cinder
Ditch is substituted.
The technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration, it is specific as follows：
The washing slag water that the blast furnace cinder flowed out from molten cinder spout 5 sprays through pelletizer 6 is smashed blast furnace melted to realize
The punching of slag, the blast furnace cinder after punching is formed slag-water slurry, and slag-water slurry subsequently enters tank diameter 7 and carries out depth
It is granulated and cools down to form grain slag crystal grain, the grain slag crystal grain that grain slag crystal grain is discharged through guiding device 8, which enters, uses grain slag in filter tank 2
The method of itself permeation filtration carries out pulp water separation, and qualified grain slag grain and the recirculated water after purification are obtained with this.
The grain slag crystal grain enters the specific side of the method progress pulp water separation using grain slag itself permeation filtration in filter tank 2
Formula is：
The slag particle of grain slag crystal grain is trapped on itself permeatable filter layer 1 by itself permeatable filter layer 1 in the filter tank 2
Face, as the decline of filtering water level realizes that grain slag crystal grain is dehydrated, can be achieved anhydrous (not dropping down water) scarfing cinder, and through itself permeation filtration
Layer 1 filtering after washing slag water by collecting pipe collect after again from filter tank 2 export.
Grain slag crystal grain after the dehydration grabs bucket or taken slag device to load vehicle or belt feeder outward transport；Flushing cinder after filtering
Water sends into cooling tower by upper tower pump 8 and carries out heat exchange cooling, and the cold water feeding cooling bay after heat exchange cooling, cold water passes through circulation again
Water pump 12 is sent to continuation flushing cinder in the pelletizer 6 and used；Or without cooling tower cooler, the washing slag water after filtering is directly sent to
Continue hot flushing cinder in the pelletizer 6.
The present embodiment has the beneficial effect that：
The heterogeneous granular filtrate of other multi-level particle diameters is not re-layed in the filter tank of the present embodiment.Due to this, itself is penetrated
Filtering layer 1 is the homogeneity grain slag particle of blast fumance, and the grain slag particle effect that filtering retention blast furnace punching comes out is significantly improved, filtering layer
Change convenient, both the buying expenses without filtrate, the filtrate changed is remained to grain slag production marketing, waste pollution filter is not produced
Material.Simultaneously as filter tank bottom does not re-lay the heterogeneous structure of filtering layer such as 1.5m or so many particle diameter cobblestones, filter tank bottom load
It is greatly reduced, without destruction of the slag stream to structure of filtering layer is worried, less with particulate intrusion, the fouling considered because of structure of filtering layer
(hardened) filter capacity reduces and is forced to carry out leveling and changing for filtrate afterwards.Grain slag is filtered from the bottom of filtering layer particle and prior art
The minimum grain size particle diameter of method is close, by itself permeation filtration, and scum silica frost can not only be retained completely, is suspended in the water after filtering
Thing content can guarantee that less than 30mg/L, realize that clear water is circulated, it is to avoid the abrasion of the equipment such as pipeline and water pump, reduce equipment investment
And maintenance cost.Due to the multilayer filter structure of the bottom filter tank bottom that eliminates prior art, be not in when being washed away by slag stream,
Small particle filtrate above is filled downwards, causes the filter layer rate of filtration uneven, can be obvious when particle is disorderly, hydraulic is hardened
The problem of influenceing filter capacity and effect, or even filtering layer blocking occur；It can in addition contain make original bottom filter the thickness of method filter layer
Degree is greatly thinned, the load of reduction filtering ponds bottom, reduces civil engineering expense；Because filter layer is changed to grain slag homogeneity filtrate,
The buying expenses of consideration filtrate is no longer needed, can in time be changed when filtering layer filter capacity is reduced, eliminated and safeguard replacement cost
With saving substantial amounts of buying and repair time, the grain slag filtering material changed can be no longer produced useless with grain slag production marketing
Gurry rubbish；Due to no longer use big thickness, multilayer, different-grain diameter rank filtrate, filter layer will not because pulp water at a high speed flow into
The accident for causing the influences such as structure of filtering layer is disorderly, hardened, filtering is uneven normally to produce afterwards occurs, and obtains the filter water of cleaning
Matter.The present embodiment is to reduction engineering cost, it is ensured that the normal table operation of production, obtains high-quality, the blast furnace granulated slag of low water content
With the filtration cycle water of cleaning, prevent the generation of production pollution waste material, improving the economic benefit and social benefit of enterprise has weight
Want meaning.
Other cooling tower is configured with remote monitoring system for operation parameters of cooling tower, the cooling tower operational factor remotely monitor
System includes the remote data acquisition device with GPRS module, and the input of the remote data acquisition device is with being arranged at cooling tower
On on-site data gathering device be connected, another input is connected with power module, output end pass through GPRS module with it is remotely several
It is connected according to server, remote data server is connected with display.
And remote data server is deposited in server cabinet, it can be heated up during the remote data server operation, if
It is that remote data server heating the problem of operational efficiency is low or even remote data server is damaged too just usually occurs, by
Cooling efficiency of this remote data server in server cabinet will determine that whether normal remote data server operational efficiency is
With the length of the work period of remote data server.
The cooling tower is configured with remote monitoring system for operation parameters of cooling tower, the cooling tower operational factor remotely monitor
System includes the remote data acquisition device with GPRS module, and the input of the remote data acquisition device is with being arranged at cooling tower
On on-site data gathering device be connected, another input is connected with power module, output end pass through GPRS module with it is remotely several
It is connected according to server, remote data server is connected with display；
The remote data server is deposited in server cabinet, and the server cabinet includes the hollow of rectangular-shape
Cabinet 1Q, the hollow cabinet 1Q are to set the first cooling system and second to drop on aluminum alloy materials, the hollow cabinet 1Q
Warm equipment, first cooling system includes being arranged on the air blower 3Q of the cabinet 1Q roofs, is arranged on the cabinet 1Q two
The through hole 13Q, the air blower 3Q of side wall bottoms of the quadrangular shape projection 11Q with being arranged on the cabinet 1Q in individual side wall
Air inlet communicated with the inside of the cabinet 1Q, the gas outlet of the air blower 3Q is in the outside of the cabinet 1Q, described
The openings 12Q communicated with the inside of the cabinet 1Q is provided with quadrangular shape projection 11Q outer wall, the openings 12Q's
Connect the cabinet 1Q inside and apart from the inside of the cabinet 1Q closer to the both sides of one end be provided with drainage piece 9Q, in institute
More high-order install in hollow heat-insulating shield 4Q, the heat-insulating shield 4Q for stating air blower 3Q sets asbestos shingle 41Q；
Second cooling system includes being arranged on the rectangular-shape hollow chamber 8Q of the cabinet 1Q bottom walls and is arranged on institute
State the dish type passage 6Q in rectangular-shape hollow chamber 8Q and accommodate in the container of cooling liquid, the rectangular-shape hollow chamber 8Q
Dish type passage 6Q is communicated with the container for accommodating cooling liquid, is also equipped with being located on described two side wall 14Q of cabinet 1Q in addition
Dish type passage 6Q on described two side wall 14Q of cabinet 1Q, the dish type passage on described two side wall 14Q of cabinet 1Q
6Q is connected with the dish type passage 6Q being arranged in the rectangular-shape hollow chamber 8Q.
It is provided with the top of one end being located on quadrangular shape projection 11Q outer walls of the openings 12Q towards outer process
Rectangular-shape catch 121Q, sets copper in one end being located on quadrangular shape projection 11Q outer walls of the openings 12Q in addition
Matter grid 122Q.
The heat-insulating shield 4Q is connected on the cabinet 1Q roofs via some rectangular-shape connection sheet 5Q, the cuboid
Distance is remain between shape connection sheet 5Q, more can further improve air blower 3Q exhaust cooling effect.
The top of the air blower 3Q sets protecting crust 31Q.
The dish type passage 6Q on described two side wall 14Q of cabinet 1Q is connected to the cabinet 1Q via anchor ear 7Q
In two side walls.
Reciprocating pump is set on the dish type passage 6Q being arranged in the rectangular-shape hollow chamber 8Q.
Thermocouple is provided with the cabinet 1Q, thermocouple group is connected with temperature indicator signal, temperature indicator and list
Piece machine signal is connected, and single-chip microcomputer is also connected with relay signal, relay and air blast mechatronics, thus utilizes the letter of thermocouple
Number, the connecting and disconnecting that signal controls air blower are fed back after being handled through single-chip microcomputer, temperature that thus can be in cabinet surpasses
When crossing setting value, air blower operation improves cooling efficiency.
The drainage piece 9Q is rectangular-shape, the drainage piece 9Q perpendicular to the cabinet 1Q inwall and be arranged on described
On cabinet 1Q inwall, the connection cabinet 1Q of openings 12Q inside and apart from the inside of the cabinet 1Q closer to
One end and the solid 1Q inwall flush.
The present embodiment has the beneficial effect that：
So via reciprocating pump cooling liquid the dish type passage 6Q on described two side wall 14Q of cabinet 1Q with
Flowed in the dish type passage 6Q being arranged in the rectangular-shape hollow chamber 8Q, thus via described two side walls of cabinet 1Q
Cooling is realized, furthermore with the signal of thermocouple, that feeds back that signal controls air blower after being handled through single-chip microcomputer connects through and off
Open, temperature that thus can be in cabinet is led more than when setting value, single-chip microcomputer feeds back signal after handling via relay
Logical air blower operation, the air inlet of air blower extracts the elevated gas of temperature in the cabinet 1Q out, and in gas bleeding
When suck the gas that external temperature is lower with reference to through hole 13Q and openings 12Q so that the remote date transmission in cabinet
Device realizes cooling, the cooling of such air current flow and the collective effect of cooling liquid, and cooling efficiency is good, more reliably, allows long-range number
It is normal and can more extend the work period of remote data server according to server operational efficiency.
The present invention is described in the way of brief description of the drawings above, it will be understood by those of skill in the art that the disclosure
Embodiments described above is not limited to, in the case of without departing from the scope of the present invention, can make a variety of changes, change and replace
Change.
Claims (10)
1. a kind of blast furnace water-flushing-slag apparatus based on itself permeation filtration, including filter tank, it is characterised in that set in the filter tank
There is itself permeatable filter layer, granulated blast fumace grain slag is carried out itself permeation filtration by itself permeatable filter layer
Realize that pulp water is separated with this.
2. the blast furnace water-flushing-slag apparatus according to claim 1 based on itself permeation filtration, it is characterised in that it is described itself
Permeatable filter layer is the homogeneity grain slag stratum granulosum of blast fumance, and the thickness range of the grain slag stratum granulosum is 100mm~800mm,
The diameter range of grain slag particle in the grain slag stratum granulosum is 0.5mm~6mm.
3. the blast furnace water-flushing-slag apparatus according to claim 1 based on itself permeation filtration, it is characterised in that it is described itself
Permeatable filter layer is laid in the support frame in the filter tank, and support frame as described above is used for supporting itself permeation filtration
Layer.
4. the blast furnace water-flushing-slag apparatus according to claim 1 based on itself permeation filtration, it is characterised in that the filter tank
Outlet be connected with being evenly distributed on the collecting pipe of the filter tank bottom, the connection of the outlet in the collecting pipe and the filter tank
Portion is located at the lower section of itself permeatable filter layer.
5. the blast furnace water-flushing-slag apparatus according to claim 1 based on itself permeation filtration, it is characterised in that be the base
Pelletizer under molten cinder spout and molten cinder spout front end are configured with the blast furnace water-flushing-slag apparatus of itself permeation filtration
Tank diameter, the pelletizer is used for spraying washing slag water and the blast furnace cinder from the molten cinder spout outflow is smashed to form inflow and stir
The slag-water slurry of groove is mixed, and the tank diameter is used for slag-water slurry depth to be granulated and be cooled into grain slag crystal grain；
The outlet of the tank diameter is connected with guiding device, and the filter tank is configured in the outlet of the guiding device, described
Guiding device is used for itself permeatable filter layer described in the grain slag crystal grain importing filter tank to be filtered；
The collecting pipe is connected with the pelletizer.
6. the blast furnace water-flushing-slag apparatus according to claim 5 based on itself permeation filtration, it is characterised in that the collection
Managing the structure being connected with the pelletizer is：
The collecting pipe is connected by being provided with the pipeline of upper tower pump with the water inlet of cooling tower, the delivery port of the cooling tower
Be connected by pipeline with the inside of water cooling pond, the delivery port of the water cooling pond by be provided with the pipeline of water circulating pump with it is described
Pelletizer is connected.
7. the blast furnace water-flushing-slag apparatus according to claim 5 based on itself permeation filtration, it is characterised in that the granulation
Device can be substituted with Punched box or granulation head, and the tank diameter can be substituted with granulation tower or sluice.
8. the technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration according to claim 6, its feature exists
In specific as follows：
The washing slag water that the blast furnace cinder flowed out from molten cinder spout sprays through pelletizer is smashed blast furnace cinder rushed to realize
System, the blast furnace cinder after punching is formed slag-water slurry, slag-water slurry subsequently enter tank diameter carry out depth granulation and
Cool down to form grain slag crystal grain, the grain slag crystal grain that grain slag crystal grain is discharged through guiding device enters in filter tank using grain slag itself infiltration
The method of filtering carries out pulp water separation.
9. the technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration according to claim 8, its feature exists
In, the grain slag crystal grain enter the concrete mode for the method progress pulp water separation for use grain slag itself permeation filtration in filter tank for：
The slag particle of grain slag crystal grain is trapped in above itself permeatable filter layer by itself permeatable filter layer in the filter tank, with mistake
Drainage position decline realize grain slag crystal grain be dehydrated, and through itself permeatable filter layer filter after washing slag water by collecting pipe collect after again
Exported from filter tank.
10. the technique of the blast furnace water-flushing-slag apparatus based on itself permeation filtration according to claim 9, its feature exists
In the grain slag crystal grain after the dehydration grabs bucket or taken slag device to load vehicle or belt feeder outward transport；Washing slag water after filtering leads to
Cross tower and be pumped into cooling tower progress heat exchange cooling, the cold water feeding cooling bay after heat exchange cooling, cold water passes through water circulating pump again
Continuation flushing cinder in the pelletizer is sent to use；Or without cooling tower cooler, the washing slag water after filtering is directly sent to the grain
Change in device and continue hot flushing cinder.
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| CN201710522623.9A CN107151715A (en) | 2017-06-30 | 2017-06-30 | A kind of blast furnace water-flushing-slag apparatus and technique based on itself permeation filtration |
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| CN109022647A (en) * | 2018-08-08 | 2018-12-18 | 北京钢元工程技术有限公司 | A kind of bottom filter method Water ramjet+ and process |
| CN110923378A (en) * | 2019-12-24 | 2020-03-27 | 中冶京诚工程技术有限公司 | Blast furnace grain slag filtering system |
| CN114849295A (en) * | 2022-05-13 | 2022-08-05 | 广东韶钢松山股份有限公司 | Blast furnace grain slag filtering system |
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