CN109576489A - Sinter return fine cyclic utilization system and application method - Google Patents
Sinter return fine cyclic utilization system and application method Download PDFInfo
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- CN109576489A CN109576489A CN201811464869.6A CN201811464869A CN109576489A CN 109576489 A CN109576489 A CN 109576489A CN 201811464869 A CN201811464869 A CN 201811464869A CN 109576489 A CN109576489 A CN 109576489A
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- tank body
- sinter
- return fine
- sinter return
- cyclic utilization
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 125000004122 cyclic group Chemical group 0.000 title claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 40
- 238000012546 transfer Methods 0.000 claims abstract description 35
- 239000000853 adhesive Substances 0.000 claims abstract description 31
- 230000001070 adhesive effect Effects 0.000 claims abstract description 31
- 238000005453 pelletization Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000004615 ingredient Substances 0.000 claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 57
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 24
- 239000005011 phenolic resin Substances 0.000 claims description 24
- 229920001568 phenolic resin Polymers 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 241000196324 Embryophyta Species 0.000 claims description 17
- 239000003364 biologic glue Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 230000004048 modification Effects 0.000 claims description 15
- 238000012986 modification Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 15
- 239000001254 oxidized starch Substances 0.000 claims description 14
- 235000013808 oxidized starch Nutrition 0.000 claims description 14
- 229920002472 Starch Polymers 0.000 claims description 11
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910021538 borax Inorganic materials 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 10
- 239000004328 sodium tetraborate Substances 0.000 claims description 10
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 10
- 230000002459 sustained effect Effects 0.000 claims description 10
- 229920001169 thermoplastic Polymers 0.000 claims description 10
- 239000004416 thermosoftening plastic Substances 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- 241001465754 Metazoa Species 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 6
- 235000019890 Amylum Nutrition 0.000 claims description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 238000005904 alkaline hydrolysis reaction Methods 0.000 claims description 5
- 239000003077 lignite Substances 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- 239000001828 Gelatine Substances 0.000 claims description 4
- 244000017020 Ipomoea batatas Species 0.000 claims description 4
- 235000002678 Ipomoea batatas Nutrition 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 239000004833 fish glue Substances 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 4
- 235000019322 gelatine Nutrition 0.000 claims description 4
- 125000005456 glyceride group Chemical group 0.000 claims description 4
- 229920002521 macromolecule Polymers 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 229920002261 Corn starch Polymers 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000008120 corn starch Substances 0.000 claims description 3
- 229940099112 cornstarch Drugs 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 235000010981 methylcellulose Nutrition 0.000 claims description 3
- -1 pentaerythritol ester Chemical class 0.000 claims description 3
- 240000003183 Manihot esculenta Species 0.000 claims description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 2
- 150000004702 methyl esters Chemical class 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 2
- 244000061456 Solanum tuberosum Species 0.000 claims 1
- 235000002595 Solanum tuberosum Nutrition 0.000 claims 1
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- UGWKCNDTYUOTQZ-UHFFFAOYSA-N copper;sulfuric acid Chemical group [Cu].OS(O)(=O)=O UGWKCNDTYUOTQZ-UHFFFAOYSA-N 0.000 claims 1
- RCHKEJKUUXXBSM-UHFFFAOYSA-N n-benzyl-2-(3-formylindol-1-yl)acetamide Chemical compound C12=CC=CC=C2C(C=O)=CN1CC(=O)NCC1=CC=CC=C1 RCHKEJKUUXXBSM-UHFFFAOYSA-N 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 claims 1
- 239000002562 thickening agent Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 12
- 238000001035 drying Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical group [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 7
- 239000008188 pellet Substances 0.000 description 7
- 235000013339 cereals Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920001592 potato starch Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000037081 physical activity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 1
- 239000002639 bone cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention discloses a kind of sinter return fine cyclic utilization system and application method, system includes the blast furnace of successively pipeline connection, sinter return fine screening plant, transfer feed bin, material-stirring device, palletizing device and finished bin, the big grain mine discharge port and the discharge port of finished bin and the feed inlet pipeline of blast furnace of transfer feed bin are connected to, material-stirring device includes outer tank body, outer tank body is equipped with pressure and weighting device, activity is equipped with inner tank body in outer tank body, ingredient area is formed in inner tank body, mixed material area is formed between inner tank body and outer tank body, mixing component is equipped in mixed material area, it is (95-98): the sinter return fine and high-strength adhesive of (2-5) that mass ratio is contained in ingredient area.Compared with prior art, this programme freezes off small grade sinter form type after return again to blast furnace, avoid repeating to be sintered, realize resource recycling, reduce energy consumption and cost；High-strength adhesive can make pelletizing rapid link form in the case where spontaneously drying process conditions, remove baking process process from, energy saving.
Description
Technical field
The present invention relates to the technical field for belonging to blast furnace ironmaking Matter Transfer and utilizing, in particular to a kind of sinter return fine circulation
Utilize system and application method.
Background technique
In blast furnace production process, 10% or so sinter return fine can be generated, the usual grade > 5mm of sinter return fine under blast furnace
Sinter can be smelted directly as finished product.However, due to the problems such as sieving specification and sieve powder efficiency under finished product screen, ditch,
So that can not be entirely grade > 5mm sinter in returning mine, therefore occupy the small grade burning of significant proportion in BF return fines
Knot mine can be sent to sintering plant, and blast furnace ore tank is returned again to after the processes such as mixing, sintering, but return mine and travel to and fro between iron-smelter and burn
It ties between factory, repeats sintering process process, production cost has been significantly greatly increased, has improved energy consumption；
Small grade sinter is freezed off and returns again to blast furnace after forming type, resource recycling is realized, reduces environmental pollution,
Reduce energy consumption.Freezing off knot moulding process is the various dust that will be generated in steel manufacture process, adds bonding appropriate
Agent under a certain pressure, makes to mix material by the block for pressing to certain shapes, size, density and intensity after mixing
Material makes the agglomerate with higher-strength using corresponding baking drying or natural consolidation.But baking is dry to be increased
Energy consumption, production cost are higher and have certain environmental pollution, though spontaneously dry the consumption of technique energy free, the drying of pelletizing
It is bad that speed causes the effect of binder to play compared with slow-motion, and the speed that intensity improves is slow, and the water content of pelletizing cannot be effective
It reduces, so that the big heavy discount of the metallurgical effect of product, and the natural drying place of demand is also bigger.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of sinter return fine cyclic utilization system and application method, with solution
Certainly to the recycling of small grade sinter, alleviates sinter supply " bottleneck ", avoid energy waste, save asking for operating cost
Topic.
The technical solution adopted by the invention is as follows: a kind of sinter return fine cyclic utilization system, key are: including successively managing
Blast furnace, sinter return fine screening plant, transfer feed bin, material-stirring device, palletizing device and the finished bin of road connection, the transfer
The big grain mine discharge port and the discharge port of the finished bin and the feed inlet pipeline of the blast furnace of feed bin are connected to；
The material-stirring device includes outer tank body, and outer tank body is equipped with pressure and weighting device, activity in the outer tank body
It is equipped with inner tank body, ingredient area is formed in the inner tank body, forms mixed material area between the inner tank body and the outer tank body, it is described
In mixed material area be equipped with mixing component, the top of the inner tank body respectively with the granule mine discharge port and high intensity of the transfer feed bin
The connection of binder tank pipeline, the bottom of the outer tank body are equipped with the first discharge port, first discharge port and the palletizing device
The connection of feed inlet pipeline；
It is (95-98): the sinter return fine and high-strength adhesive of (2-5) that mass ratio is contained in the ingredient area, described
High-strength adhesive by 44-62 parts of modification biological glue, 38-50 parts of phenolic resin, 28-46 parts of oxidized starch, 25-38 parts of lignite,
15-21 parts of cellulose family macromolecule, 8-14 parts of tackifier compositions.
Preferably, the pressure and weighting device includes surrounding the horizontally disposed sensor support frame of the outer tank body, the biography
Face is equipped with pressure sensor, the upper and lower surface point of the pressure sensor between sensor support frame and the cover board of the inner tank body
It is not pushed against with the sensor support frame and the cover board of the inner tank body, the outer tank of the sensor support frame and the outer tank body
Wall is fixedly connected.
Preferably, in the inner tank body longitudinally be equipped with partition, the outer ledge of the partition respectively with the inner tank body
The inner tank body is divided into Liang Ge feed separation area by inner wall connection, the partition, two feed separation areas respectively with institute
The granule mine discharge port for stating transfer feed bin is connected to high-strength adhesive tank pipeline, and the inner tank body bottom is equipped with the second discharging
Mouthful, the bottom in two feed separation areas is connected to second discharge port respectively.
Preferably, the mixing component includes horizontally disposed agitating shaft, and fixing sleeve is equipped with multiple leaves on the agitating shaft
Piece component, the blade assembly include tubular base, are set on the tubular base there are two stirring blade, the tubular base
Inner tubal wall is fixedly connected with the outer surface of the agitating shaft, and the two sides of the tubular base are fixedly connected to fixing bolt, and two
Locking nut is respectively equipped on a fixing bolt, the stirring blade includes blade unit setting up and down, described in two
Blade unit favours the axis of the agitating shaft in the same direction, and the locking nut is by two blade units and the tubular base
The outer tube wall of seat compresses.
Preferably, the modification biological glue is obtained using following methods: animal glue and water being placed in reaction kettle, impregnated
20-30h is swollen animal glue sufficiently, and the temperature of reaction kettle is then risen to 50-80 DEG C, and NaOH is added and carries out alkaline hydrolysis, stirring is anti-
10-40min is answered, then the temperature of reaction kettle is adjusted to 30-60 DEG C, agitation and dropping epichlorohydrin carries out polymerization reaction, sustained response
1.5-5h obtains the modification biological glue.
Preferably, the mass ratio of the animal glue, water, NaOH and epichlorohydrin is 1:(0.5-1.5): (0.01-0.1):
(0.01-0.05)；The animal glue is the mixture of one or more of gelatine, fish glue, shellac, Lao Starters glue.
Preferably, the phenolic resin includes thermoplastic phenolic resin and hexa, by phenolic resin total weight
Meter, the content of the thermoplastic phenolic resin are 90-98%, and the content of the hexa is 2-10%.
Preferably, the oxidized starch is obtained using following methods: plant amylum and water being placed in reaction kettle, stirring is equal
It is even, catalyst is then sequentially added while stirring, NaOH aqueous solution, hydrogen peroxide and the borax that mass fraction is 10%wt, wherein
The plant amylum, water, catalyst, borax, NaOH aqueous solution and hydrogen peroxide mass volume ratio be 1g:(2-8) g:(0.001-
0.01) g:(0.005-0.015) g:(0.5-1.2) ml:(0.05-0.2) ml, sustained response 1.5-4.5h obtains the oxidation
Starch.
Preferably, the plant amylum be one of potato starch, cornstarch, starch from sweet potato or tapioca or
Two or more mixtures；The catalyst is copper sulphate.
Preferably, the cellulose family macromolecule is methylcellulose, carboxymethyl cellulose, in hydroxypropyl methyl cellulose
One or two；The tackifier are in newtrex pentaerythritol ester, hydrogenated rosin glyceride or hydrogenated rosin methyl ester
One or more kinds of mixtures.
A kind of application method of sinter return fine cyclic utilization system, key be the following steps are included:
It is sieved Step 1: the sinter return fine that blast furnace generates is delivered in sinter return fine screening plant, after screening
Grade > 5mm sinter and small grade sinter sent respectively into transfer feed bin；
Step 2: grade > 5mm sinter in transfer feed bin is fed directly to blast furnace process, it will be small in transfer feed bin
High-strength adhesive in grade sinter and high-strength adhesive tank is delivered in the inner tank body of material-stirring device, through pressure
After weighing device ingredient, into carrying out mixing in outer tank body；
Step 3: the mixture in material-stirring device is delivered to cold moudling in palletizing device, obtained sintering is returned
Mine pelletizing is delivered to finished bin, and the sinter return fine pelletizing in finished bin, which is delivered in blast furnace, to be smelted.
The utility model has the advantages that compared with prior art, sinter return fine cyclic utilization system and application method provided by the invention are adjusted
Whole blast furnace technology, small grade sinter is freezed off and returns again to blast furnace after forming type, is avoided repeating sintering process process, is realized money
Source recycles, and reduces environmental pollution, reduces energy consumption, reduces cost；High-strength adhesive can spontaneously dry
Pelletizing rapid link is formed, baking process process is eliminated, energy saving, reduction is polluted, and can
The speed for accelerating coal-pressing ball early stage natural drying, guarantees the requirement of pellet strength and moisture in a short time, is effectively steel
Iron enterprise cost efficiency.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention；
Fig. 2 is the structural schematic diagram of material-stirring device 4 in Fig. 1；
Fig. 3 is the structural schematic diagram of blade assembly 43b in Fig. 2.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
Embodiment 1
As shown in Figure 1-3, a kind of sinter return fine cyclic utilization system, blast furnace 1, sinter return fine including the connection of successively pipeline
The big grain mine of screening plant 2, transfer feed bin 3, material-stirring device 4, palletizing device 5 and finished bin 6, the transfer feed bin 3 goes out
The discharge port of material mouth and the finished bin 6 is connected to the feed inlet pipeline of the blast furnace 1；
The material-stirring device 4 includes outer tank body 41, and outer tank body 41 is equipped with pressure and weighting device 7, the outer tank body
Activity is equipped with inner tank body 42 in 41, forms ingredient area in the inner tank body 42, the inner tank body 42 and the outer tank body 41 it
Between form mixed material area, mixing component 43 is equipped in the mixed material area, is longitudinally equipped with partition 44, the partition in the inner tank body 42
44 outer ledge is connect with the inner wall of the inner tank body 42 respectively, and the inner tank body 42 is divided into two objects by the partition 44
Expect Disengagement zone, two feed separation areas respectively with the granule mine discharge port and high-strength adhesive tank 8 of the transfer feed bin 3
Pipeline connection, 42 bottom of inner tank body be equipped with the second discharge port, the bottom in two feed separation areas respectively with this second
Discharge port is connected to, and is contained with sinter return fine and high-strength adhesive I, the sinter return fine respectively in two feed separation areas
Mass ratio with the high-strength adhesive I is 95:5, and the bottom of the outer tank body 41 is equipped with the first discharge port, first discharging
Mouth is connected to the feed inlet pipeline of the palletizing device 5；
It can be seen that, the pressure and weighting device 7 includes surrounding the horizontally disposed biography of the outer tank body 41 in Fig. 2 and Fig. 3
Sensor support frame 71, face is equipped with pressure sensor 72, institute between the sensor support frame 71 and the cover board of the inner tank body 42
The upper and lower surface for stating pressure sensor 72 is pushed against with the sensor support frame 71 and the cover board of the inner tank body 42 respectively, described
Sensor support frame 71 is fixedly connected with the outer tank skin of the outer tank body 41；
The mixing component 43 includes horizontally disposed agitating shaft 43a, and fixing sleeve is equipped with multiple leaves on the agitating shaft 43a
Piece component 43b, the blade assembly 43b include tubular base b1, are set on the tubular base b1 there are two stirring blade b2, institute
The inner tubal wall for stating tubular base b1 is fixedly connected with the outer surface of the agitating shaft 43a, and the two sides of the tubular base b1 are solid
Surely it is connected with fixing bolt b3, locking nut b4 is respectively equipped on two fixing bolt b3, the stirring blade b2 includes
Blade unit setting up and down, two blade units favour the axis of the agitating shaft 43a, the locking nut in the same direction
B4 compresses the outer tube wall of two blade units and the tubular base b1.
The high-strength adhesive I by 44 parts of modification biological glue, 38 parts of phenolic resin, 28 parts of oxidized starch, 25 parts of lignite,
15 parts of methylcellulose, 8 parts of newtrex pentaerythritol ester compositions；
The modification biological glue is obtained using following methods: fish glue and water being placed in reaction kettle, 20-30h is impregnated, makes
Object glue is sufficiently swollen, and the temperature of reaction kettle is then risen to 50-80 DEG C, and NaOH is added and carries out alkaline hydrolysis, is stirred to react 10-40min,
The temperature of reaction kettle is adjusted to 30-60 DEG C again, agitation and dropping epichlorohydrin, carries out polymerization reaction, sustained response 1.5-5h,
In, the fish glue, water, NaOH and epichlorohydrin mass ratio be 1:0.5:0.01:0.01, obtain the modification biological glue；
The phenolic resin includes thermoplastic phenolic resin and hexa, described by phenolic resin total weight
The content of thermoplastic phenolic resin is 90%, and the content of the hexa is 10%.
The oxidized starch is obtained using following methods: cornstarch and water being placed in reaction kettle, stirred evenly, then
Copper sulphate is sequentially added while stirring, NaOH aqueous solution, hydrogen peroxide and the borax that mass fraction is 10%wt, wherein the jade
Rice starch, water, copper sulphate, borax, NaOH aqueous solution and hydrogen peroxide mass volume ratio be 1g:2g:0.001g:0.005g:
0.5ml:0.05ml, sustained response 1.5-4.5h obtain the oxidized starch.
Embodiment 2
As shown in Figure 1-3, a kind of sinter return fine cyclic utilization system, blast furnace 1, sinter return fine including the connection of successively pipeline
The big grain mine of screening plant 2, transfer feed bin 3, material-stirring device 4, palletizing device 5 and finished bin 6, the transfer feed bin 3 goes out
The discharge port of material mouth and the finished bin 6 is connected to the feed inlet pipeline of the blast furnace 1；
The material-stirring device 4 includes outer tank body 41, and outer tank body 41 is equipped with pressure and weighting device 7, the outer tank body
Activity is equipped with inner tank body 42 in 41, forms ingredient area in the inner tank body 42, the inner tank body 42 and the outer tank body 41 it
Between form mixed material area, mixing component 43 is equipped in the mixed material area, is longitudinally equipped with partition 44, the partition in the inner tank body 42
44 outer ledge is connect with the inner wall of the inner tank body 42 respectively, and the inner tank body 42 is divided into two objects by the partition 44
Expect Disengagement zone, two feed separation areas respectively with the granule mine discharge port and high-strength adhesive tank 8 of the transfer feed bin 3
Pipeline connection, 42 bottom of inner tank body be equipped with the second discharge port, the bottom in two feed separation areas respectively with this second
Discharge port is connected to, and is contained with sinter return fine and high-strength adhesive I, the sinter return fine respectively in two feed separation areas
It is 95:5 with the mass ratio of the high-strength adhesive II, the bottom of the outer tank body 41 is equipped with the first discharge port, this first goes out
Material mouth is connected to the feed inlet pipeline of the palletizing device 5；
It can be seen that, the pressure and weighting device 7 includes surrounding the horizontally disposed biography of the outer tank body 41 in Fig. 2 and Fig. 3
Sensor support frame 71, face is equipped with pressure sensor 72, institute between the sensor support frame 71 and the cover board of the inner tank body 42
The upper and lower surface for stating pressure sensor 72 is pushed against with the sensor support frame 71 and the cover board of the inner tank body 42 respectively, described
Sensor support frame 71 is fixedly connected with the outer tank skin of the outer tank body 41；
The mixing component 43 includes horizontally disposed agitating shaft 43a, and fixing sleeve is equipped with multiple leaves on the agitating shaft 43a
Piece component 43b, the blade assembly 43b include tubular base b1, are set on the tubular base b1 there are two stirring blade b2, institute
The inner tubal wall for stating tubular base b1 is fixedly connected with the outer surface of the agitating shaft 43a, and the two sides of the tubular base b1 are solid
Surely it is connected with fixing bolt b3, locking nut b4 is respectively equipped on two fixing bolt b3, the stirring blade b2 includes
Blade unit setting up and down, two blade units favour the axis of the agitating shaft 43a, the locking nut in the same direction
B4 compresses the outer tube wall of two blade units and the tubular base b1.
The high-strength adhesive II is by 62 parts of modification biological glue, 50 parts of phenolic resin, 46 parts of oxidized starch, lignite 38
Part, 21 parts of carboxymethyl cellulose, 14 parts of hydrogenated rosin glyceride compositions；
The modification biological glue obtains: using following methods and Lao Starters glue and water is placed in reaction kettle, impregnates 20-30h, makes
Lao Starters glue is sufficiently swollen, and the temperature of reaction kettle is then risen to 50-80 DEG C, and NaOH is added and carries out alkaline hydrolysis, is stirred to react 10-
40min, then the temperature of reaction kettle is adjusted to 30-60 DEG C, agitation and dropping epichlorohydrin carries out polymerization reaction, sustained response 1.5-
5h, wherein the Lao Starters glue, water, NaOH and epichlorohydrin mass ratio be 1:1.5:0.1:0.05, obtain the modification biological
Glue；
The phenolic resin includes thermoplastic phenolic resin and hexa, described by phenolic resin total weight
The content of thermoplastic phenolic resin is 98%, and the content of the hexa is 2%.
The oxidized starch is obtained using following methods: starch from sweet potato and water being placed in reaction kettle, stirred evenly, then
Copper sulphate is sequentially added while stirring, NaOH aqueous solution, hydrogen peroxide and the borax that mass fraction is 10%wt, wherein described red
Sweet potato starch, water, copper sulphate, borax, NaOH aqueous solution and hydrogen peroxide mass volume ratio be 1g:8g:0.01g:0.015g:
1.2ml:0.2ml sustained response 4.5h obtains the oxidized starch.
Embodiment 3
As shown in Figure 1-3, a kind of sinter return fine cyclic utilization system, blast furnace 1, sinter return fine including the connection of successively pipeline
The big grain mine of screening plant 2, transfer feed bin 3, material-stirring device 4, palletizing device 5 and finished bin 6, the transfer feed bin 3 goes out
The discharge port of material mouth and the finished bin 6 is connected to the feed inlet pipeline of the blast furnace 1；
The material-stirring device 4 includes outer tank body 41, and outer tank body 41 is equipped with pressure and weighting device 7, the outer tank body
Activity is equipped with inner tank body 42 in 41, forms ingredient area in the inner tank body 42, the inner tank body 42 and the outer tank body 41 it
Between form mixed material area, mixing component 43 is equipped in the mixed material area, is longitudinally equipped with partition 44, the partition in the inner tank body 42
44 outer ledge is connect with the inner wall of the inner tank body 42 respectively, and the inner tank body 42 is divided into two objects by the partition 44
Expect Disengagement zone, two feed separation areas respectively with the granule mine discharge port and high-strength adhesive tank 8 of the transfer feed bin 3
Pipeline connection, 42 bottom of inner tank body be equipped with the second discharge port, the bottom in two feed separation areas respectively with this second
Discharge port is connected to, and is contained with sinter return fine and high-strength adhesive I, the sinter return fine respectively in two feed separation areas
It is 97:3 with the mass ratio of the high-strength adhesive III, the bottom of the outer tank body 41 is equipped with the first discharge port, this first goes out
Material mouth is connected to the feed inlet pipeline of the palletizing device 5；
It can be seen that, the pressure and weighting device 7 includes surrounding the horizontally disposed biography of the outer tank body 41 in Fig. 2 and Fig. 3
Sensor support frame 71, face is equipped with pressure sensor 72, institute between the sensor support frame 71 and the cover board of the inner tank body 42
The upper and lower surface for stating pressure sensor 72 is pushed against with the sensor support frame 71 and the cover board of the inner tank body 42 respectively, described
Sensor support frame 71 is fixedly connected with the outer tank skin of the outer tank body 41；
The mixing component 43 includes horizontally disposed agitating shaft 43a, and fixing sleeve is equipped with multiple leaves on the agitating shaft 43a
Piece component 43b, the blade assembly 43b include tubular base b1, are set on the tubular base b1 there are two stirring blade b2, institute
The inner tubal wall for stating tubular base b1 is fixedly connected with the outer surface of the agitating shaft 43a, and the two sides of the tubular base b1 are solid
Surely it is connected with fixing bolt b3, locking nut b4 is respectively equipped on two fixing bolt b3, the stirring blade b2 includes
Blade unit setting up and down, two blade units favour the axis of the agitating shaft 43a, the locking nut in the same direction
B4 compresses the outer tube wall of two blade units and the tubular base b1.
The high-strength adhesive III is by 56 parts of modification biological glue, 41 parts of phenolic resin, 30 parts of oxidized starch, lignite 28
Part, 18 parts of carboxymethyl cellulose, 10 parts of hydrogenated rosin glyceride compositions；
The modification biological glue is obtained using following methods: gelatine and water being placed in reaction kettle, 20-30h is impregnated, makes bone
Glue is sufficiently swollen, and the temperature of reaction kettle is then risen to 60 DEG C, and NaOH is added and carries out alkaline hydrolysis, is stirred to react 10-40min, then will
The temperature of reaction kettle is adjusted to 50 DEG C, and agitation and dropping epichlorohydrin carries out polymerization reaction, sustained response 2h, wherein the gelatine,
The mass ratio of water, NaOH and epichlorohydrin is 1:1:0.03:0.04, obtains the modification biological glue；
The phenolic resin includes thermoplastic phenolic resin and hexa, described by phenolic resin total weight
The content of thermoplastic phenolic resin is 92%, and the content of the hexa is 8%.
The oxidized starch is obtained using following methods: potato starch and water being placed in reaction kettle, stirred evenly, so
Sequentially add copper sulphate while stirring afterwards, NaOH aqueous solution, hydrogen peroxide and the borax that mass fraction is 10%wt, wherein described
Potato starch, water, copper sulphate, borax, NaOH aqueous solution and hydrogen peroxide mass volume ratio be 1g:5g:0.006g:0.01g:
0.8ml:0.1ml, sustained response 2h obtain the oxidized starch.
Embodiment 4
A kind of application method of sinter return fine cyclic utilization system, comprising the following steps:
It sieves, will sieve Step 1: the sinter return fine that blast furnace 1 generates is delivered in sinter return fine screening plant 2
Grade > 5mm sinter and small grade sinter afterwards is sent respectively into transfer feed bin 3；
It is smelted Step 2: grade > 5mm sinter in transfer feed bin 3 is fed directly to blast furnace 1, it will be in transfer feed bin 3
High-strength adhesive I in small grade sinter and high-strength adhesive tank 8 is delivered to the inner tank body 42 of material-stirring device 4
In, after 7 ingredient of pressure and weighting device, into carrying out mixing in outer tank body 41；
Step 3: the mixture in material-stirring device 4 is delivered to cold moudling in palletizing device 5, obtained sintering
The pelletizing I that returns mine is delivered to finished bin 6, and the sinter return fine pelletizing in finished bin 6, which is delivered in blast furnace 1, to be smelted.
Test result: the initial balling ratio of sinter return fine pelletizing I be 91.2%, initial pellet strength 536.8N, for 24 hours after pelletizing
Intensity is 1015.1N, and pelletizing moisture content is 3.2%wt, and pellet strength is 1800N after 72h, and pelletizing moisture content is 1.7%wt.
Embodiment 5
A kind of application method of sinter return fine cyclic utilization system, comprising the following steps:
It sieves, will sieve Step 1: the sinter return fine that blast furnace 1 generates is delivered in sinter return fine screening plant 2
Grade > 5mm sinter and small grade sinter afterwards is sent respectively into transfer feed bin 3；
It is smelted Step 2: grade > 5mm sinter in transfer feed bin 3 is fed directly to blast furnace 1, it will be in transfer feed bin 3
High-strength adhesive I in small grade sinter and high-strength adhesive tank 8 is delivered to the inner tank body 42 of material-stirring device 4
In, after 7 ingredient of pressure and weighting device, into carrying out mixing in outer tank body 41；
Step 3: the mixture in material-stirring device 4 is delivered to cold moudling in palletizing device 5, obtained sintering
The pelletizing II that returns mine is delivered to finished bin 6, and the sinter return fine pelletizing in finished bin 6, which is delivered in blast furnace 1, to be smelted.
Test result: the initial balling ratio of sinter return fine pelletizing II be 93.8%, initial pellet strength 697.1N, for 24 hours after ball
Group's intensity is 1120.1N, and pelletizing moisture content is 2.7%wt, and pellet strength is 2100N after 72h, and pelletizing moisture content is 1.5%wt.
Embodiment 6
A kind of application method of sinter return fine cyclic utilization system, comprising the following steps:
It sieves, will sieve Step 1: the sinter return fine that blast furnace 1 generates is delivered in sinter return fine screening plant 2
Grade > 5mm sinter and small grade sinter afterwards is sent respectively into transfer feed bin 3；
It is smelted Step 2: grade > 5mm sinter in transfer feed bin 3 is fed directly to blast furnace 1, it will be in transfer feed bin 3
High-strength adhesive I in small grade sinter and high-strength adhesive tank 8 is delivered to the inner tank body 42 of material-stirring device 4
In, after 7 ingredient of pressure and weighting device, into carrying out mixing in outer tank body 41；
Step 3: the mixture in material-stirring device 4 is delivered to cold moudling in palletizing device 5, obtained sintering
The pelletizing III that returns mine is delivered to finished bin 6, and the sinter return fine pelletizing in finished bin 6, which is delivered in blast furnace 1, to be smelted.
Test result: the initial balling ratio of sinter return fine pelletizing III be 96.2%, initial pellet strength 725.6N, for 24 hours after ball
Group's intensity is 1433.5N, and pelletizing moisture content is 2.2%wt, and pellet strength is 2600N after 72h, and pelletizing moisture content is 1.12%
wt。
Finally it is to be appreciated that foregoing description is merely a preferred embodiment of the present invention, those skilled in the art is in the present invention
Enlightenment under, without prejudice to the purpose of the present invention and the claims, multiple similar expressions, such change can be made
It changes and falls within the scope of protection of the present invention.
Claims (10)
1. a kind of sinter return fine cyclic utilization system, it is characterised in that: blast furnace (1), sinter return fine including the connection of successively pipeline
Screening plant (2), transfer feed bin (3), material-stirring device (4), palletizing device (5) and finished bin (6), the transfer feed bin
(3) discharge port of big grain mine discharge port and the finished bin (6) is connected to the feed inlet pipeline of the blast furnace (1)；
The material-stirring device (4) includes outer tank body (41), and outer tank body (41) is equipped with pressure and weighting device (7), described outer
Activity is equipped with inner tank body (42) in tank body (41), and ingredient area, the inner tank body (42) and institute are formed in the inner tank body (42)
It states and forms mixed material area between outer tank body (41), be equipped with mixing component (43) in the mixed material area, the top of the inner tank body (42)
It is connected to respectively with the granule mine discharge port of the transfer feed bin (3) and high-strength adhesive tank (8) pipeline, the outer tank body (41)
Bottom be equipped with the first discharge port, which is connected to the feed inlet pipeline of the palletizing device (5)；
It is (95-98): the sinter return fine and high-strength adhesive of (2-5) that mass ratio is contained in the ingredient area, described high-strength
Binder is spent by 44-62 parts of modification biological glue, 38-50 parts of phenolic resin, 28-46 parts of oxidized starch, 25-38 parts of lignite, fiber
15-21 parts of plain class macromolecule, 8-14 parts of tackifier compositions.
2. sinter return fine cyclic utilization system according to claim 1, it is characterised in that: the pressure and weighting device (7)
Including surrounding the outer tank body (41) horizontally disposed sensor support frame (71), the sensor support frame (71) and the inner canister
Between the cover board of body (42) face be equipped with pressure sensor (72), the upper and lower surface of the pressure sensor (72) respectively with it is described
Sensor support frame (71) and the cover board of the inner tank body (42) push against, the sensor support frame (71) and the outer tank body
(41) outer tank skin is fixedly connected.
3. sinter return fine cyclic utilization system according to claim 2, it is characterised in that: longitudinal in the inner tank body (42)
Equipped with partition (44), the outer ledge of the partition (44) is connect with the inner wall of the inner tank body (42) respectively, the partition
(44) inner tank body (42) is divided into Liang Ge feed separation area, two feed separation areas respectively with the transfer feed bin
(3) granule mine discharge port is connected to high-strength adhesive tank (8) pipeline, and inner tank body (42) bottom is equipped with the second discharging
Mouthful, the bottom in two feed separation areas is connected to second discharge port respectively；The mixing component (43) sets including level
The agitating shaft (43a) set, fixing sleeve is equipped with multiple blade assemblies (43b) on the agitating shaft (43a), the blade assembly
(43b) includes tubular base (b1), is set on the tubular base (b1) there are two stirring blade (b2), the tubular base (b1)
Inner tubal wall be fixedly connected with the outer surface of the agitating shaft (43a), the two sides of the tubular base (b1) are fixedly connected to
Fixing bolt (b3) is respectively equipped with locking nut (b4) on two fixing bolts (b3), and the stirring blade (b2) includes
Blade unit setting up and down, two blade units favour the axis of the agitating shaft (43a), the locking screw in the same direction
Female (b4) compresses the outer tube wall of two blade units and the tubular base (b1).
4. sinter return fine cyclic utilization system according to claim 3, it is characterised in that the modification biological glue use with
Lower method obtains: animal glue and water being placed in reaction kettle, 20-30h is impregnated, is swollen animal glue sufficiently, then by reaction kettle
Temperature rise to 50-80 DEG C, NaOH is added and carries out alkaline hydrolysis, is stirred to react 10-40min, then the temperature of reaction kettle is adjusted to 30-
60 DEG C, agitation and dropping epichlorohydrin carries out polymerization reaction, and sustained response 1.5-5h obtains the modification biological glue.
5. sinter return fine cyclic utilization system according to claim 4, it is characterised in that: the animal glue, water, NaOH and
The mass ratio of epichlorohydrin is 1:(0.5-1.5): (0.01-0.1): (0.01-0.05)；The animal glue is gelatine, fish glue, worm
The mixture of one or more of glue, Lao Starters glue.
6. according to claim 1,4 or 5 described in any item sinter return fine cyclic utilization systems, it is characterised in that: the phenolic aldehyde
Resin includes thermoplastic phenolic resin and hexa, by phenolic resin total weight, the thermoplastic phenolic resin
Content is 90-98%, and the content of the hexa is 2-10%.
7. sinter return fine cyclic utilization system according to claim 6, it is characterised in that the oxidized starch is using following
Method obtains: plant amylum and water being placed in reaction kettle, stirred evenly, then sequentially adds catalyst, quality while stirring
Score is NaOH aqueous solution, hydrogen peroxide and the borax of 10%wt, wherein the plant amylum, water, catalyst, borax, NaOH water
The mass volume ratio of solution and hydrogen peroxide is 1g:(2-8) g:(0.001-0.01) g:(0.005-0.015) g:(0.5-1.2) ml:
(0.05-0.2) ml, sustained response 1.5-4.5h obtain the oxidized starch.
8. sinter return fine cyclic utilization system according to claim 7, it is characterised in that: the plant amylum is potato
The mixture of one or more of starch, cornstarch, starch from sweet potato or tapioca；The catalyst is sulfuric acid
Copper.
9. according to claim 1, the described in any item sinter return fine cyclic utilization systems in 3,5 or 8, it is characterised in that: the fibre
Tieing up plain class macromolecule is one or both of methylcellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose；The thickening
Agent is the mixing of one or more of newtrex pentaerythritol ester, hydrogenated rosin glyceride or hydrogenated rosin methyl ester
Object.
10. a kind of application method of such as described in any item sinter return fine cyclic utilization systems of claim 1-9, it is characterised in that
The following steps are included:
It sieves, will sieve Step 1: the sinter return fine that blast furnace (1) generates is delivered in sinter return fine screening plant (2)
Grade > 5mm sinter and small grade sinter afterwards is sent respectively into transfer feed bin (3)；
It is smelted Step 2: grade > 5mm sinter in transfer feed bin (3) is fed directly to blast furnace (1), by transfer feed bin (3)
High-strength adhesive in medium and small grade sinter and high-strength adhesive tank (8) is delivered to the inner canister of material-stirring device (4)
In body (42), after pressure and weighting device (7) ingredient, into progress mixing in outer tank body (41)；
Step 3: the mixture in material-stirring device (4) is delivered to cold moudling in palletizing device (5), obtained sintering
Pelletizing of returning mine is delivered to finished bin (6), and the sinter return fine pelletizing in finished bin (6), which is delivered in blast furnace (1), to be smelted.
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