CN108083287A - It is a kind of to prepare kaolin production line application method - Google Patents
It is a kind of to prepare kaolin production line application method Download PDFInfo
- Publication number
- CN108083287A CN108083287A CN201711450173.3A CN201711450173A CN108083287A CN 108083287 A CN108083287 A CN 108083287A CN 201711450173 A CN201711450173 A CN 201711450173A CN 108083287 A CN108083287 A CN 108083287A
- Authority
- CN
- China
- Prior art keywords
- grinding
- furnace body
- revolution
- calcination activation
- fluidized bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 48
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000227 grinding Methods 0.000 claims abstract description 84
- 230000004913 activation Effects 0.000 claims abstract description 82
- 238000001354 calcination Methods 0.000 claims abstract description 76
- 239000003245 coal Substances 0.000 claims abstract description 62
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 238000001035 drying Methods 0.000 claims abstract description 50
- 239000000428 dust Substances 0.000 claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 71
- 239000002245 particle Substances 0.000 claims description 64
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 36
- 239000003546 flue gas Substances 0.000 claims description 36
- 239000007789 gas Substances 0.000 claims description 36
- 239000004411 aluminium Substances 0.000 claims description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 28
- 229910052782 aluminium Inorganic materials 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 14
- 230000003134 recirculating effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims description 2
- 241000237858 Gastropoda Species 0.000 claims 1
- 238000012797 qualification Methods 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 238000000197 pyrolysis Methods 0.000 description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 229910052593 corundum Inorganic materials 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 229910001845 yogo sapphire Inorganic materials 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 7
- 229910052906 cristobalite Inorganic materials 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 229910052682 stishovite Inorganic materials 0.000 description 7
- 229910052905 tridymite Inorganic materials 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000498 ball milling Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
- 210000000038 chest Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052622 kaolinite Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 206010035653 pneumoconiosis Diseases 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- -1 oxygen content≤6% Chemical compound 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to environmental protection and resources circulation technical field of comprehensive utilization, and in particular to a kind of to prepare kaolin production line application method.It is characterized in that：The production line formed using devices such as calcination activation rotary furnace, circulating fluidized bed combustion coal boiler, electric bag dust extractor, grinding drying rotary furnace, cloth bag dust extractors is realized prepares kaolinic purpose using discarded object circulating fluidized bed combustion coal boiler fly ash.
Description
Technical field
The present invention relates to environmental protection and resources circulation technical field of comprehensive utilization, and in particular to a kind of to prepare kaolin production line
Application method.
Background technology
Kaolin purposes is very extensive, is mainly used for the industries such as papermaking, ceramics, rubber and plastic, chemical industry, coating, medicine, kaolin
Main mineral constituent is kaolinite, and kaolinic crystal-chemical formula is 2SiO2·Al2O3·2H2O has by calcine technology removing
Machine matter, lattice reconstruct；Mechanical crushing and the enough fineness of air-flow crushing prepare cable plastics and rubber seal etc. and fill out to meet
The requirement of material, papermaking paint, molecular sieve, catalyst carrier.Circulating fluidized bed combustion coal boiler fly ash be during boiler for producing most
Common discarded object, main component SiO2、Al2O3It is the occupational root of pneumoconiosis, to personnel in workplace
Injury it is larger, be easy to cause the occupational diseases such as pneumoconiosis, the aerial dust of loss is polluted the environment, how turned waste into wealth
And it is always that the art engineers and technicians want to be solved the problems, such as that high-value-use, which prepares kaolin, wherein needing to solve
Existing practical problem include obtaining enough fineness, the various proportioning directed agents of addition and suitable technological equipment so that following
Ring fluid bed coal-burning boiler flying dust prepare kaolin meet papermaking, ceramics, rubber and plastic, coating, Enamel Industry requirement chemistry into
Point and physical performance index.Chinese invention patent（Patent No. CN 201610683499.X, patent name is outside sludge roller
Heat drying is integrated with Incineration in CFB and exhaust gas cleaner）Disclose a kind of outer heat drying of sludge roller and recycle stream
Fluidized-bed incineration integration and exhaust gas cleaner, it is characterised in that：It includes recirculating fluidized bed, anhydration system and tail gas clean-up system
System, anhydration system include rotary kiln roller, wind turbine and condenser, and rotary kiln roller interts the afterbody cigarette for being arranged on recirculating fluidized bed
On road, after moisture removal is removed in the condensed device condensation of the vapor and foul smell that are generated in wet mud drying process, recirculating fluidized bed is sent into
Hearth combustion deodorization；It is set in back-end ductwork there are two air preheater, respectively with being set on the burner hearth of recirculating fluidized bed
Primary air nozzle connected with overfiren air port；Exhaust gas purification system includes the activated carbon injection dress set gradually after air preheater
It puts, bag filter and wet desulfurization system；Air shooter and one is set between bag filter and wet desulfurization system
Secondary air port connection；The present invention is used for the desiccation and burning of sludge.Chinese invention patent（Patent No. CN201510884574.4,
Patent name is a kind of polygenerations systeme and method based on pyrolysis of coal）It discloses a kind of multi-joint based on pyrolysis of coal
System and method is produced, it is characterized in that, including being capable of each the coal pyrolysis unit of independent operating and coal-char combustion power generation unit；Institute
State coal pyrolysis unit include sequentially connected drier, preheater, pyrolysis kiln, high-temperature gas filter, pyrolysis air cooling and
Waste-heat recovery device, the second cooler and tar electric trapper and the fluidized bed furnace being connected with pyrolysis kiln；The coal-char combustion power generation
Unit includes the circulating fluidized bed boiler being connected with pyrolysis kiln, the heat recovery boiler being connected with circulating fluidized bed boiler and cold slag
Device, the steam turbine being connected with circulating fluidized bed boiler and heat recovery boiler and the generator being connected with steam turbine；The heat
Solution air cooling and waste-heat recovery device, heat recovery boiler and slag cooler are connected with drier, for providing heat to drier
Flue gas；The hot semicoke generated after being pyrolyzed by coal pyrolysis unit, most is directly entered burning in circulating fluid bed boiler hair
Electricity, another fraction then into fluidized bed furnace, generate the heat smoke needed for for pyrolysis；When coal pyrolysis unit and coal-char combustion power generation
One in unit when breaking down, cut-out coupling link, another unit therein still is able to independent operating；Chinese invention is special
Profit（Patent No. CN 200920185135.4, patent name are ball milling rotary furnace）Disclose a kind of ball milling rotary furnace, feature
It is the boiler tube including being equipped with feed system and discharge system, the boiler tube is equipped with ball milling between feed system and discharge system
Heating interval and conventional heating section.The utility model material synthesizes in it by multiple ball milling, mixing, calcining, so as to
Make the abundant fast reaction of storeroom, ultimately form the product that capability and performance is stable, performance indicator is higher, while energy consumption is relatively low.
The technical solution purpose that the prior art 1 proposes is to provide a kind of outer heat drying of sludge roller and Incineration in CFB
Integration and exhaust gas cleaner, are closer to the designing scheme of this case, but the burner hearth of circulating fluidized bed combustion coal boiler
Outlet temperature is 900 ± 50 DEG C of temperature, and kaolinic calcination activation temperature requirement reaches 900~1280 DEG C, rotary kiln rolling
It can only be drying functions that cylinder is interspersed, which to be arranged on heating on the back-end ductwork of recirculating fluidized bed, and can not meet needed for calcination activation
Technological temperature condition；The prior art 2 is using the coal-fired hot carbocoal tar pneumatic transmission circulating fluidized bed boiler combustion after rotary kiln cracking
Power generation is burnt, another part carbocoal tar pneumatic transmission fluidized bed furnace generates hot wind for coal-fired cracking institute calorific requirement, do not refer to recirculating fluidized bed
The circulation comprehensive of burned-coal fly ash utilizes；The prior art 3, which designs, is equipped with ball milling heating interval between feed system and discharge system（Add
Hot stove pipe）With conventional heating section（Furnace tubing）, material is interior by multiple ball milling, mixing, calcining synthesis at it, so that
The abundant fast reaction of storeroom ultimately forms the product that capability and performance is stable, performance indicator is higher, while energy consumption is relatively low.If
The waste heat flue gas that hot medium is added to be discharged for electrostatic fabric filter after recirculating fluidized bed, the furnace tubing of the device are obviously not suitable for.
The content of the invention
In view of the deficiencies of the prior art, kaolin production line application method is prepared the object of the present invention is to provide a kind of,
It is characterized in：
Step 1, fire coal is after the burner hearth fluidized bed combustion of circulating fluidized bed combustion coal boiler into cyclone separator, cyclone separator
The larger high-temperature solid particle separated enters revert system, and high-temperature solid particle forms stock column in the standpipe of material returning device,
There is U-shaped valve between standpipe and refeed line, there is isobaric air compartment air-supply in U-shaped valve bottom to ensure that high-temperature solid particle fluidizes, in standpipe
Stock column and gun pressure pressure differential high-temperature solid particle by refeed line successively to burner hearth conveying burn again, in returning charge
The port of export design guide wire of pipe, exporting flue gas by air-vent makes guiding room be always negative pressure state, so as to reduce refeed line
Local gun pressure is exported, the high temperature coal particle for falling into negative pressure chamber is fluidized through blowing chamber air-supply cooling and discharged through air-vent, with
The circulating fluidized bed combustion coal boiler fly ash of this cyclone separator discharge simultaneously is carried by high-temperature flue gas is sent into calcination activation rotary furnace
As preparing kaolinic raw material.
Step 2, idler assembly include roller set, pedestal, bushing two groups of roller-way components before and after calcination activation rotating cylinder,
Positioning is erected on idler assembly, and circle gear is bushed on calcination activation rotating cylinder, in the driving lower band of drive gear assemblies
Dynamic calcination activation rotating cylinder is turned round around own central axis line, and drive gear assemblies include drive gear and transmission system.
Step 3, calcination activation rotary furnace cylinder assembly include mechanical sealing assembly I, circle gear, calcination activation revolving drum
Body, roller-way component, high aluminium ball stack layers, mechanical sealing assembly II lay high aluminium ball stack layers in calcination activation rotating cylinder, due to
Abrasion and the reason for not stopping supplement, high aluminium ball stack layers form the ball filler that diameter differs, and high aluminium ball is returned in calcination activation
Do not stop rolling, phase mutual friction when being turned round in drum body with it.
Step 4, the materials such as directed agents are delivered into injector by the auger conveyor of distributor, while high-temperature flue gas is held under the arm
Band circulating fluidized bed combustion coal boiler fly ash enters from hot-flow flue after injector is mixed with materials such as directed agents to be flutterred through spreader guiding
To the spiral blade of distributor, acted on along spiral blade rolling tangential direction and got rid of into calcination activation rotating cylinder by centrifugal force
Wall is lost kinetic energy by the effects that wall friction, high aluminium ball stack layers, gravity, spiral blade hinder in calcination activation rotating cylinder and stopped
In bottom, high aluminium ball stack layers suspend simultaneously mutual rubbing therebetween, complete activation at a temperature of 900~1280 DEG C in stove and grind
Wear into the kaolin finished particle of enough fineness.
Step 5, air classifier inlet design are three along the circumferential direction uniformly distributed spiral imports, can avoid calcination activation
The distinguished and admirable road short circuit of rotary furnace cylinder assembly both ends cigarette and guide that spiral blade raises along calcination activation rotating cylinder spiral inner wall
The whirlwind wind band of advance, the path for the spiral whirlwind wind band that high-temperature flue gas is raised along spiral blade, which is advanced, sweeps along fineness is qualified to enter
Air classifier, so as to sub-elect the more uniform finished particle of activation degree and fineness.
Step 6, from air classifier discharge high-temperature flue gas successively through superheater, economizer, air preheater heat exchange after, flue gas temperature
Degree is down to 150~160 DEG C, and flue gas carries kaolin finished particle and enters electric bag dust extractor, in this flue gas and kaolin finished product
Particle separates, and kaolin finished particle is sent to next process through the trapping of electric bag dust extractor, and tail gas is sent to grinding drying rotary furnace
Further UTILIZATION OF VESIDUAL HEAT IN.
The materials such as step 7, directed agents deliver into grinding drying revolution furnace body through feeding screw, are stopped by gravity
Grinding drying revolution bottom of furnace body is stayed in, the grinding drying in vivo roller of rotary furnace is placed on and dries revolution furnace body revolution with grinding
Do not stop to roll and crushed material using own wt, the roll surface of roller is designed with spiral slot grinding and sharpening, and spiral slot grinding is held
It is dried revolution furnace body discharge end to grinding while the material particles received are sent to sharpening slowly to move, the sharpening of roller is on edge
It dries revolution furnace body with the mutual rubbing of material, material in grinding drying revolution furnace body circumferential inner wall rolling process with grinding and returns
Turn to rise to certain altitude and left again to bottom to be ground repeatedly by roller, can not the impurity of crushing grinding accommodated by spiral slot grinding
And dry the discharge end movement of revolution furnace body to grinding.
Step 8, the exhaust temperature that circulating fluidized bed combustion coal boiler is discharged after electrostatic fabric filter purifies are 150~160
DEG C, tail gas is discharged after hot wind sleeve enters in grinding drying rotary furnace body from selection by winnowing sleeve, and revolution furnace body is dried to grinding
Revolution rises the material heat transfer raised, and the moisture in material is heated as vapor and is taken away.
Step 9, grinding drying revolution furnace body have been distributed uniformly and circumferentially short jaw on the inner wall of discharge end,
Short jaw is dried revolution furnace body revolution with grinding and is along the circumferential direction moved up and down, when short jaw is moved to grinding drying revolution furnace body
During bottom, contained material and climbed, reach grinding drying revolution 2/3 height of furnace diameter when, the torsion angular direction of short jaw with it is short
The parabola that both furnace body axis are turned round in jaw and grinding drying is tangent, and material is jettisoninged to above spiral discharging device import, smaller
The material of granularity by tail gas swept along be sent into selection by winnowing sleeve, it is hard can not crush, the impurity of larger granularity is arranged by spiral discharging device
Go out, so as to sub-elect the more uniform material particles of fineness, the exhaust temperature through the discharge of selection by winnowing sleeve is not less than 110 DEG C.
Step 10, the tail gas containing vapor discharged through selection by winnowing sleeve carry material particles and enter cloth bag dust extractor,
Calcination activation is transported in material particles such as this material and tail gas separation, tail gas qualified discharge after environmental protection treatment, directed agents to return
Converter.
Inventor has found that fire coal divides after 900 ± 50 DEG C of temperature of recirculating fluidized bed burner hearth are burnt, then through cyclone separator
From coarse granule returns to burner hearth through material returning device and burns away, 38 μm of the fine grained grain size carried in the flue gas of cyclone separator discharge
~58 μm, main component Al2O3、SiO2With uncombusted C, it is known as circulating fluidized bed combustion coal boiler fly ash, with good work
The main component SiO of property2Content is about 45~55%, Al2O3Content is about 35~38%, and uncombusted C content is about 3~5%, as
Impurity component Si forms SiO after circulating fluidized bed combustion coal boiler furnace high temperature is burnt under the relatively low situation of oxygen amount in coal2Gas
Colloidal sol, with Al2O3It carried under one's arms with uncombusted C particles by high velocity smoke, hit broken, separating at high temperature and enter calcination activation rotary furnace, had
There are larger specific surface area and cation exchange capacity, in other words, circulating fluidized bed combustion coal boiler fly ash fineness is compared with kaolinite
That the fineness reached through mechanical crushing had and too late, activity function is more preferable, and impurity is less.
Inventor has found, the high-value-use that realize circulating fluidized bed combustion coal boiler fly ash prepare kaolin, it is necessary to according to
《Kaolin and its test method》GB/T 14563-2008 reach its chemical composition and physical property requirements, although every profession and trade pair
The specific requirement of kaolin clay filler is not quite identical, but wherein fineness and Al2O3/SiO2Than having more specific regulation, therefore profit
Do not stop rolling, phase mutual friction when being turned round with high aluminium ball in calcination activation rotary furnace with it, realize and returned to resting on calcination activation
The grinding of converter bottom cycle fluidized bed burned-coal boiler fly ash, and under 900~1280 DEG C of high temperature of calcination activation, Al2O3、
SiO2Since intermolecular bonding energy declines, spacing increases while completing lattice reconstruct, it is readily available under high aluminium ball rubbing
Fineness reaches 1000~1200 mesh kaolin finished products, while the component particles that the mutual rubbing of high aluminium ball comes off also add to height
In the soil finished product of ridge, separated impurity is not needed.
Inventor find, if to realize circulating fluidized bed combustion coal boiler fly ash high-value-use prepare kaolin and fully
Using the waste heat of calcination activation rotary furnace discharge high-temperature flue gas, designed using calcination activation rotary furnace in circulating fluidized bed combustion coal pot
Technical solution between the combustion system and heat-exchange system of stove can realize above-mentioned target, particularly calcination activation rotary furnace
Hot-flow flue is connected with the cyclone separator of circulating fluidized bed combustion coal boiler, the high temperature cigarette of the air classifier discharge of calcination activation rotary furnace
Gas is successively by superheater, economizer, the air preheater heat exchange of circulating fluidized bed combustion coal boiler.
Inventor's discovery,《Cleaner design and installation operation and maintenance and standard criterion operating guidance》（Jilin phonotape and videotape is published
Society publishes, publication date in September, 2003）It explicitly points out, electrostatic fabric filter even high temperature gathers dust, and flue-gas temperature can not be high
In 400 DEG C, calcination activation rotary furnace discharges high-temperature flue gas after superheater, economizer, air preheater heat exchange cooling, disclosure satisfy that
Use condition is stated, electrostatic fabric filter reaches while is the finished product capturing device of calcination activation rotary furnace and circulating fluidized bed combustion coal pot
The purpose of the environment-friendly processing unit of furnace exhaust particulate matter.
Inventor has found, since the temperature in use of calcination activation rotary furnace calcination activation is 900~1280 DEG C, and recycle stream
Change the temperature of bed coal-burning boiler thorax as 900 ± 50 DEG C, because more than after above-mentioned temperature, fluosolids, that is, coking loses fluidized state and leads
Cause is unable to operate normally, while burner hearth no longer arranges heating surface, calcination activation in addition to fluidisation layer segment arrangement water wall surface
The solution of operating temperature needed for rotary furnace is inside conveying fine coal powder burning to supplement required calorific value.
Inventor has found that the effect of material returning device is the high-temperature solid particle that cyclone separator is separated, and is led to through standpipe
The isobaric air compartment air-supply of bottom is crossed, burner hearth is sent back to by refeed line and is burnt again, there is U-shaped valve, U-shaped valve between standpipe and refeed line
Bottom has isobaric air compartment air-supply to ensure that high-temperature solid particle fluidizes.The pressure difference of stock column and gun pressure is driving in standpipe in standpipe
The guarantee that high-temperature solid particle is successively conveyed to burner hearth.Since this case is recirculating fluidized bed roasting revolution all-in-one oven, roast
The discharge end of rotary furnace is activated as air classifier, design requirement flue gas flow rate is relatively low, to reduce the finished particle kinetic energy carried, so as to
Sub-elect the finished particle of enough fineness, and to burner hearth air-supply need to overcome burner hearth, cyclone separator, injector, spiral blade,
The resistance of the components such as air classifier, therefore the air-supply requirement to circulating fluidized bed combustion coal boiler thorax is that wind pressure is big, air quantity is small, therefore stove
The pressure head of thorax is larger, by the requirement of the pressure balance of stock column and gun pressure in above-mentioned standpipe, then the stock column requirement for height of standpipe is set
Count higher, i.e., the returning charge amount of high-temperature solid particle is just high, and returning charge amount and the recirculating fluidized bed into calcination activation rotary furnace
The ratio of coal-burning boiler flying dust determines that in other words, returning charge amount increase, circulating fluidized bed combustion coal boiler flies via cyclone separator
Ash increase, the load increase of air classifier, separated efficiency reduce.To solve the above problems, the port of export design in refeed line is led
Draw room, guiding room is negative pressure state, by designing the guide wire by refeed line outlet, reduces the local thorax in refeed line outlet
Pressure so as to reduce the stock column height of standpipe, realizes material balance and ensures the purpose of separative efficiency, make circulating fluidized bed combustion coal pot
Stove can effectively be combined and be run well with calcination activation rotary furnace.
Inventor has found, to prevent exhaust emission from leaking, and calcination activation rotary furnace both ends need the sealing of reliable design, by
In furnace body internal-external temperature difference is larger and fineness of materials is up to more than 1000 mesh, and working condition is barotropic state, the sealings such as labyrinth, filler
Form is easy to fail, and only mechanical seal is relatively suitble to, and being typically employed in dynamic and static ring sealing face spray hydraulic oil just can be very well
The purpose of solving cooling, lubricating, is dust-proof.
Inventor has found that the purpose for designing distributor is the powders such as supplement high aluminium ball and conveying directed agents, cleaned coal, is gone out at it
Design spreader main purpose in mouth end is to disperse above-mentioned material and uniformly mixed with circulating fluidized bed combustion coal boiler fly ash, uniformly mixed
Powder after conjunction is swept along by high-temperature flue gas jumps on spiral blade, by centrifugal force effect along spiral blade rolling tangential direction get rid of to
Calcination activation rotary furnace inner wall is lost kinetic energy by the effects that inboard wall of furnace body friction, high aluminium ball stack layers, gravity, spiral blade obstruction
Bottom of furnace body is rested on, by the mutual rubbing of high aluminium ball, obtains and is swept along feeding air classifier by flue gas after enough fineness.
Inventor has found that air classifier inlet design is three along the circumferential direction uniformly distributed spiral imports, can avoid roasting
The distinguished and admirable road short circuit of activation rotary furnace both ends cigarette and guide that spiral blade raises advance along calcination activation rotating cylinder spiral inner wall
Whirlwind wind band, and since import draught area relatively exports big, flue gas flow rate reduces under conditions of equal ventilation quantity, also means
The particle kinetic energy of carrying reduces, so as to sub-elect the finished particle of enough fineness.
Inventor has found that the coal-fired circulating fluidized bed combustion coal boiler fly ash generated after the burning of recirculating fluidized bed burner hearth is sent into
In calcination activation rotary furnace after roasting, high-temperature flue gas carries kaolin finished particle and exchanges heat again through superheater, economizer, air preheater
It traps and separates through electrostatic fabric filter, the exhaust temperature discharged after being purified by electrostatic fabric filter still has 150~160 DEG C, this part
It is more suitable that fume afterheat is undoubtedly for the baking operation of kaolin diverting agent and fuel.According to《Kaolin and its experiment
Method》GB/T 14563-2008 reach kaolin chemical composition and physical property requirements, must be the kaolinic Al of adjustment2O3/
SiO2Than etc. addition diverting agent and fuel, the fineness that reach certain must will be ground as the ore raw materials of diverting agent and is removed outer
Water, while the cleaned coal particle as fuel also needs to be ground to fine coal powder and be uniformly mixed with diverting agent to be sent into calcination activation rotary furnace
It is interior.
Inventor has found that the oxygen content for the tail gas that circulating fluidized bed combustion coal boiler is discharged after electrostatic fabric filter purifies is general
Suitable with benchmark oxygen, i.e. oxygen content≤6%, the tail gas under this anaerobic condition will not cause cleaned coal particle in grinding drying revolution
Spontaneous combustion can simultaneously allow coal-fired outer water to be dried for standby in stove process of lapping.
Inventor has found, to prevent the leakage of exhaust gas particle object from causing environmental pollution, and grinding drying rotary furnace both ends need to design
Reliable sealing, since furnace body internal-external temperature difference is larger and fineness of materials is up to more than 100 mesh, and working condition is barotropic state, fan
The seal forms such as palace, filler are easy to fail, and only mechanical seal is relatively suitble to, and is typically employed in dynamic and static ring sealing face spray liquid
The purpose of pressure oil can just solve to cool down, lubricate, is dust-proof very well.
Inventor has found that diverting agent and cleaned coal particle deliver into grinding drying rotary furnace through feeding screw, by gravity
Effect rests on bottom of furnace body, and grinding drying revolution bottom of furnace body places cylindrical roller, and roller dries revolution furnace body with grinding
Revolution, which does not stop to roll, grinds material.The roll surface of roller is designed with spiral slot grinding and sharpening, the material that spiral slot grinding is accommodated
It is slowly moved to discharge end while being sent to sharpening, spiral slot grinding, which also has, accommodates higher, the non-breakable impurity of hardness
Effect and be constantly moved into discharge end；Roller is ground material grinding to smaller particle by the weight of itself again
Mill can only utilize the work efficiency of mutual rubbing to greatly improve compared with iron ball, and energy consumption is greatly reduced.
Inventor has found, chilled cast iron roll surface Quench and generate chill, hardness is high, wearability is good, in chill cast share iron roll
Grey mouth layer still keeps some strength, is unlikely to deform, is not easy roll breakage.Position of centre of gravity is fixed in grinding drying rotary furnace body, will not
Revolution furnace body is caused to swing, damage carrying roller, roller apparatus and transmission device, the chill alloy cast iron of material selection of roller are relatively fitted
It closes.
Inventor has found that grinding drying revolution furnace body feed end is designed with hot wind sleeve, and discharge end is designed with selection by winnowing sleeve,
Tail gas is discharged after hot wind sleeve enters in grinding drying rotary furnace body from selection by winnowing sleeve.Grinding drying revolution furnace body is close to discharging
Short jaw is distributed uniformly and circumferentially on the inner wall at end, such as the principle of waterwheel, short jaw dries revolution furnace body with grinding
Revolution along the circumferential direction moves up and down, and when short jaw is moved to grinding drying revolution bottom of furnace body, has contained material and has climbed, reached
During grinding drying revolution 2/3 height of furnace diameter, in the torsion angular direction of short jaw and short jaw and grinding drying revolution furnace body
The parabola of both axis is tangent, and material is jettisoninged to above spiral discharging device import, and the material of smaller particle size is swept along by tail gas to be sent
Enter selection by winnowing sleeve, it is hard can not crush, the impurity of larger granularity is discharged by spiral discharging device.
Compared with the prior art, the present invention, which at least contains, to be had the advantage that：First, circulating fluidized bed combustion coal boiler fly ash is pot
Most common discarded object in stove production process, it is larger to the injury of personnel in workplace, the occupational diseases such as pneumoconiosis are be easy to cause,
The aerial dust of loss pollutes the environment, main at present to be handled using the methods of landfill, not only contaminated soil, but also
Waste of resource and manpower.And the present invention is then turned waste into wealth, and is used to prepare kaolin, can not only be reduced environmental pollution, and
And production cost can be reduced；Second, the high-value-use that realize circulating fluidized bed combustion coal boiler fly ash prepare kaolin, it is necessary to
According to《Kaolin and its test method》GB/T 14563-2008 reach its chemical composition and physical property requirements, although each row
Industry is not quite identical to the specific requirement of kaolin clay filler, but wherein fineness and Al2O3/SiO2Than there is more specific regulation, because
Do not stop rolling, phase mutual friction when this is turned round using high aluminium ball in calcination activation rotary furnace with it, realize and live to resting on roasting
Change the grinding of rotary furnace bottom cycle fluidized bed burned-coal boiler fly ash, and under 900~1280 DEG C of high temperature of calcination activation,
Al2O3、SiO2Since intermolecular bonding energy declines, spacing increases while completing lattice reconstruct, under high aluminium ball rubbing easily
It obtains fineness and reaches 1000~1200 mesh kaolin finished products, while the component particles that the mutual rubbing of high aluminium ball comes off also are supplemented
Into kaolin finished product, separated impurity is not needed；3rd, the sealing of calcination activation rotary furnace both ends is using mechanical seal side
Case can be reliably completed under hot conditions and seal problem, avoid the discharge of exhaust emission；4th, air classifier inlet design is
Three along the circumferential direction uniformly distributed spiral imports can avoid the distinguished and admirable road short circuit of calcination activation rotary furnace both ends cigarette and guide spiral
The whirlwind wind band to advance along calcination activation rotating cylinder spiral inner wall that blade raises, and since import draught area relatively exports
Greatly, flue gas flow rate reduces under conditions of equal ventilation quantity, also means the particle kinetic energy of carrying and reduces, enough thin so as to sub-elect
The finished particle of degree；5th, by designing the guide wire by refeed line outlet, reduction refeed line exports local gun pressure, from
And reduce the stock column height of standpipe, realize material balance and ensure separative efficiency purpose, make circulating fluidized bed combustion coal boiler with
Calcination activation rotary furnace effectively can be combined and run well；6th, calcination activation rotary furnace is designed in circulating fluidized bed combustion coal
Between the combustion system and heat-exchange system of boiler, the particularly hot-flow flue of calcination activation rotary furnace and circulating fluidized bed combustion coal pot
The cyclone separator connection of stove, the high-temperature flue gas of the air classifier discharge of calcination activation rotary furnace pass through circulating fluidized bed combustion coal successively
The superheater of boiler, economizer, air preheater heat exchange, electric bag dust extractor be simultaneously calcination activation rotary furnace finished product capturing device and
The environment-friendly processing unit of circulating fluidized bed combustion coal boiler waste gas particulate matter；7th, after efficiently using the burning of recirculating fluidized bed burner hearth
It traps separate through electrostatic fabric filter again through superheater, economizer, air preheater heat exchange, the tail gas discharged after being purified by electrostatic fabric filter
Waste heat is for the drying preheating of the materials such as diverting agent, the tail gas that circulating fluidized bed combustion coal boiler is discharged after electrostatic fabric filter purifies
Oxygen content it is generally suitable with benchmark oxygen, i.e. oxygen content≤6%, the tail gas under this anaerobic condition will not cause cleaned coal particle to exist
Spontaneous combustion can simultaneously allow coal-fired outer water to be dried for standby in grinding drying rotary furnace process of lapping；8th, grinding drying revolution furnace body bottom
Cylindrical roller is placed in portion, and roller is ground material grinding to smaller particle by the weight of itself again, can only compared with iron ball
It is greatly improved using the work efficiency of mutual rubbing, energy consumption is greatly reduced.
Description of the drawings
Fig. 1 is a kind of main structure diagram for preparing kaolin production line application method of the present invention.
Fig. 2 is a kind of A-A cross-sectional views for preparing kaolin production line application method of the present invention.
Fig. 3 is a kind of B partial enlargement structural representations for preparing kaolin production line application method of the present invention.
Fig. 4 is a kind of C full-page proof structure diagrams for preparing kaolin production line application method of the present invention.
Fig. 5 is a kind of D for preparing kaolin production line application method of the present invention to structure diagram.
Fig. 6 is a kind of E partial enlargement structural representations for preparing kaolin production line application method of the present invention.
Fig. 7 is a kind of F partial enlargement structural representations for preparing kaolin production line application method of the present invention.
Fig. 8 is a kind of G-G cross-sectional views for preparing kaolin production line application method of the present invention.
Fig. 9 is a kind of H partial enlargement structural representations for preparing kaolin production line application method of the present invention.
Figure 10 is a kind of I full-page proof structure diagrams for preparing kaolin production line application method of the present invention.
Figure 11 is a kind of J partial enlargement structural representations for preparing kaolin production line application method of the present invention.
Figure 12 is a kind of K partial enlargement structural representations for preparing kaolin production line application method of the present invention.
I-calcination activation, II-circulating fluidized bed combustion coal of rotary furnace boiler III-electricity bag dust extractor
IV-grinding drying rotary furnace V-cloth bag dust extractor
1- distributor 2- drive gear assemblies 3- idler assemblies
4- calcination activation rotary furnace cylinder assembly 5- air classifier 6- auger conveyor 7- injectors
8- cooling jacket 9- spreader 10- locating rack 11- spiral blades
12- transmission system 13- driving gear 14- hot-flow flue 15- mechanical sealing assemblies I
16- encloses gear 17- roller-way component 18- calcination activation rotating cylinders
II 21- roller set 22- pedestals of 19- high aluminium ball stack layers 20- mechanical sealing assemblies
23- cyclone separator 24- burner hearth 25- revert system 26- material returning devices
27- guides room 28- standpipe 29-U type valve 30- refeed line 31- air-vents
32- guide wire 33- negative pressure chamber 34- blowing chamber 35- superheater 36- economizers
37- air preheater 38- feeding screw 39- hot wind sleeves 40- grinding drying revolution furnace body 41- selection by winnowing sleeves
The short jaw 45- sharpenings 46- spiral slot grindings of 42- spiral discharging device 43- rollers 44-.
Specific embodiment
The present invention is described further with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, it is a kind of to prepare kaolinite shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12
Autochthonal producing line application method, it is characterized in that：
Step 1, fire coal is after 24 fluidized bed combustion of burner hearth of circulating fluidized bed combustion coal boiler II into cyclone separator 23, whirlwind
The larger high-temperature solid particle that separator 23 separates enters revert system 25, and high-temperature solid particle is in the standpipe of material returning device 26
Stock column is formed in 28, there is U-shaped valve 29 between standpipe 28 and refeed line 30, U-shaped 29 bottom of valve has isobaric air compartment air-supply to ensure height
Warm solid particle fluidizes, and the pressure differential high-temperature solid particle of stock column and gun pressure in standpipe 28 is successive by refeed line 30
It conveys to burner hearth 24 and burns again, guide wire 32 is designed in the port of export of refeed line 30, exporting flue gas by air-vent 31 makes to lead
It is always negative pressure state to draw room 27, exports local gun pressure so as to reduce refeed line 30, falls into the high temperature coal of negative pressure chamber 33
Grain blows to cool down through blowing chamber 34 and fluidizes and discharged through air-vent 31, the recirculating fluidized bed that at the same time cyclone separator 23 is discharged
Coal-burning boiler flying dust is used as by high-temperature flue gas carrying feeding calcination activation rotary furnace II and prepares kaolinic raw material.
Step 2, idler assembly 3 include roller set 21, pedestal 22, bushing two groups of rollers before and after calcination activation rotating cylinder 18
Road component 17, positioning are erected on idler assembly 3, and circle gear 16 is bushed on calcination activation rotating cylinder 18, in drive gear
Under the driving of component 2 calcination activation rotating cylinder 18 is driven to be turned round around own central axis line, drive gear assemblies 2 include driving gear
13 and transmission system 12.
Step 3, calcination activation rotary furnace cylinder assembly 4 include mechanical sealing assembly I 15, circle gear 16, calcination activation and return
Drum body 18, roller-way component 17, high aluminium ball stack layers 19, mechanical sealing assembly II 20, the laying in calcination activation rotating cylinder 18
High aluminium ball stack layers 19, due to wearing and not stopping the reason of supplement, high aluminium ball stack layers 19 form the ball filler that diameter differs,
High aluminium ball does not stop rolling, phase mutual friction when being turned round in calcination activation rotating cylinder 18 with it.
The materials such as directed agents are delivered into injector 7, while high-temperature flue gas by step 4, the auger conveyor 6 of distributor 1
It carries under one's arms after circulating fluidized bed combustion coal boiler fly ash is mixed from hot-flow flue 14 into injector 7 with materials such as directed agents through spreader 9
Guiding jumps on the spiral blade 11 of distributor 1, is acted on along 11 rolling tangential direction of spiral blade and is got rid of to calcination activation by centrifugal force
18 inner wall of rotating cylinder is hindered by wall friction, high aluminium ball stack layers 19, gravity, spiral blade 11 in calcination activation rotating cylinder 18
The effects that lose kinetic energy and rest on bottom, high aluminium ball stack layers 19 suspend therebetween simultaneously mutual rubbing, 900~1280 in stove
Activation is completed at a temperature of DEG C and is ground into the kaolin finished particle of enough fineness.
Step 5,5 inlet design of air classifier are three along the circumferential direction uniformly distributed spiral imports, can avoid calcination activation
The distinguished and admirable road short circuit of 4 both ends cigarette of rotary furnace cylinder assembly and guide that spiral blade 11 raises along 18 inner wall of calcination activation rotating cylinder
The whirlwind wind band being threadingly advanced, the path for the spiral whirlwind wind band that high-temperature flue gas is raised along spiral blade 11, which is advanced, sweeps along fineness to close
Lattice enter air classifier 5, so as to sub-elect the more uniform finished particle of activation degree and fineness.
Step 6, from air classifier 5 discharge high-temperature flue gas successively through superheater 35, economizer 36, air preheater 37 exchange heat after,
Flue-gas temperature is down to 150~160 DEG C, and flue gas carries kaolin finished particle and enters electric bag dust extractor III, in this flue gas and height
Ridge soil finished particle separation, kaolin finished particle are sent to next process through the trapping of electric bag dust extractor III, and tail gas is sent to grinding
Dry IV further UTILIZATION OF VESIDUAL HEAT IN of rotary furnace.
The materials such as step 7, directed agents deliver into grinding drying revolution furnace body 40 through feeding screw 38, are made by gravity
With 40 bottom of grinding drying revolution furnace body is rested on, the roller 43 being placed in grinding drying revolution furnace body 40 is dried back with grinding
Rotary furnace body 40 is turned round not stop to roll and is crushed material using own wt, and the roll surface of roller 43 is designed with spiral slot grinding 46 and sharpening
45, it is dried into revolution 40 discharge end of furnace body to grinding while the material particles that spiral slot grinding 46 is accommodated are sent to sharpening 45
It is slowly mobile, the sharpening 45 of roller 43 along grind along drying revolution 40 circumferential inner wall rolling process of furnace body with material phase mutual friction
Grinding, material with grinding dries the revolution revolution of furnace body 40 and rises to certain altitude and left again to bottom to be ground repeatedly by roller,
Can not the impurity of crushing grinding accommodated from spiral slot grinding 46 and dry revolution furnace body 40 discharge end movement to grinding.
Step 8, the exhaust temperature that circulating fluidized bed combustion coal boiler is discharged after the purification of electrostatic fabric filter III are 150~160
DEG C, tail gas is discharged after hot wind sleeve 39 is interior into grinding drying revolution furnace body 40 from selection by winnowing sleeve 41, is dried back to grinding
The revolution of rotary furnace body 40 rises the material heat transfer raised, and the moisture in material is heated as vapor and is taken away.
Step 9, grinding drying revolution furnace body 40 have been distributed uniformly and circumferentially short jaw on the inner wall of discharge end
44, short jaw 44 is turned round with grinding drying revolution furnace body 40 and along the circumferential direction moved up and down, and is dried when short jaw 44 is moved to grinding
During dry revolution 40 bottom of furnace body, contain material and climbed, when reaching grinding drying revolution 40 2/3 height of diameter of furnace body, short jaw 44
Torsion angular direction and short jaw 44 and grinding dry turn round both 40 axis of furnace body parabola it is tangent, material is jettisoninged to spiral
Above 42 import of discharger, the material of smaller particle size is swept along by tail gas is sent into selection by winnowing sleeve 41, it is hard can not crush, larger grain
The impurity of degree is discharged by spiral discharging device 42, so as to sub-elect the more uniform material particles of fineness, is discharged through selection by winnowing sleeve 41
Exhaust temperature be not less than 110 DEG C.
Step 10, the tail gas containing vapor discharged through selection by winnowing sleeve 41 carry material particles and enter cloth bag dust extractor
V, it is transported to calcination activation in material particles such as this material and tail gas separation, tail gas qualified discharge after environmental protection treatment, directed agents
Rotary furnace II.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in specific embodiment disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, it although is used in this specification
Some specific terms, but these terms are merely for convenience of description, do not limit the present invention in any way.
Claims (1)
1. a kind of prepare kaolin production line application method, it is characterized in that：Step 1, fire coal is in circulating fluidized bed combustion coal boiler
Into cyclone separator after burner hearth fluidized bed combustion, the larger high-temperature solid particle that cyclone separator separates enters returning charge system
System, high-temperature solid particle form stock column in the standpipe of material returning device, there is U-shaped valve between standpipe and refeed line, and U-shaped valve bottom has
To ensure that high-temperature solid particle fluidizes, the pressure differential high-temperature solid particle of stock column and gun pressure in standpipe passes through the air-supply of pressure air compartment
Refeed line successively burns again to burner hearth conveying, designs guide wire in the port of export of refeed line, cigarette is exported by air-vent
Gas makes guiding room be always negative pressure state, so as to reduce the local gun pressure in refeed line outlet, falls into the high temperature coal of negative pressure chamber
Grain blows to cool down through blowing chamber and fluidizes and discharged through air-vent, the circulating fluidized bed combustion coal pot of at the same time cyclone separator discharge
Converter fly ash is used as by high-temperature flue gas carrying feeding calcination activation rotary furnace and prepares kaolinic raw material；Step 2, idler assembly bag
Include roller set, pedestal, bushing two groups of roller-way components before and after calcination activation rotating cylinder, positioning is erected on idler assembly, encloses tooth
Wheel is bushed on calcination activation rotating cylinder, and calcination activation rotating cylinder is driven under the driving of drive gear assemblies in itself
Axis turns round, and drive gear assemblies include drive gear and transmission system；Step 3, calcination activation rotary furnace cylinder assembly include
Mechanical sealing assembly I, circle gear, calcination activation rotating cylinder, roller-way component, high aluminium ball stack layers, mechanical sealing assembly II, are roasting
Laying high aluminium ball stack layers in activation rotating cylinder are burnt, due to wearing and not stopping the reason of supplement, it is big that high aluminium ball stack layers form diameter
The small ball filler to differ does not stop rolling, phase mutual friction when high aluminium ball turns round in calcination activation rotating cylinder with it；Step
Four, the materials such as directed agents are delivered into injector by the auger conveyor of distributor, while high-temperature flue gas carries under one's arms recirculating fluidized bed
Coal-burning boiler flying dust enters after injector is mixed with materials such as directed agents the snail that distributor is jumped on through spreader guiding from hot-flow flue
Blade is revolved, is acted on along spiral blade rolling tangential direction and is got rid of to calcination activation rotating cylinder inner wall, by calcination activation by centrifugal force
The effects that wall friction, high aluminium ball stack layers, gravity, spiral blade hinder in rotating cylinder loses kinetic energy and rests on bottom, high aluminium ball
Stack layers suspend simultaneously mutual rubbing therebetween, complete activation at a temperature of 900~1280 DEG C in stove and are ground into enough fineness
Kaolin finished particle；Step 5, air classifier inlet design are three along the circumferential direction uniformly distributed spiral imports, can be avoided
The distinguished and admirable road short circuit of calcination activation rotary furnace cylinder assembly both ends cigarette and guide that spiral blade raises along calcination activation rotating cylinder
The whirlwind wind band that spiral inner wall advances, the path for the spiral whirlwind wind band that high-temperature flue gas is raised along spiral blade, which is advanced, sweeps along fineness
Qualification is into air classifier, so as to sub-elect the more uniform finished particle of activation degree and fineness；Step 6 is discharged from air classifier
High-temperature flue gas successively through superheater, economizer, air preheater heat exchange after, flue-gas temperature is down to 150~160 DEG C, and flue gas carries
Kaolin finished particle enters electric bag dust extractor, is separated in this flue gas with kaolin finished particle, and kaolin finished particle is through electricity
Next process is sent in bag dust extractor trapping, and tail gas is sent to the grinding drying further UTILIZATION OF VESIDUAL HEAT IN of rotary furnace；Step 7, directed agents
Materials is waited to deliver into grinding drying revolution furnace body through feeding screw, grinding drying revolution furnace body bottom is rested on by gravity
Portion, be placed on grinding drying the in vivo roller of rotary furnace with grinding dry revolution furnace body revolution do not stop roll using own wt will
Material crushes, and the roll surface of roller is designed with spiral slot grinding and sharpening, and the material particles that spiral slot grinding is accommodated are sent to sharpening
It is dried revolution furnace body discharge end to grinding simultaneously slowly to move, the sharpening of roller is ground on edge in drying revolution furnace body circumference
It rises to certain altitude with the mutual rubbing of material, material in wall rolling process with grinding drying revolution furnace body revolution and throws again
Bottom is fallen on to be ground repeatedly by roller, can not crushing grinding impurity accommodated from spiral slot grinding and to grinding dry revolution furnace body go out
Expect end movement；Step 8, the exhaust temperature that circulating fluidized bed combustion coal boiler is discharged after electrostatic fabric filter purifies are 150~160
DEG C, tail gas is discharged after hot wind sleeve enters in grinding drying rotary furnace body from selection by winnowing sleeve, and revolution furnace body is dried to grinding
Revolution rises the material heat transfer raised, and the moisture in material is heated as vapor and is taken away；Step 9, grinding are dried back
Rotary furnace body has been distributed uniformly and circumferentially short jaw on the inner wall of discharge end, and short jaw is dried revolution furnace body with grinding and returned
Turn along the circumferential direction to move up and down, when short jaw is moved to grinding drying revolution bottom of furnace body, has contained material and climbed, arrival is ground
During mill drying revolution 2/3 height of furnace diameter, torsion angular direction and the short jaw and grinding drying revolution furnace body axis of short jaw
The parabola of the two is tangent, and material is jettisoninged to above spiral discharging device import, and the material of smaller particle size is swept along feeding by tail gas
Selection by winnowing sleeve, it is hard can not crush, the impurity of larger granularity is discharged by spiral discharging device, more uniform so as to sub-elect fineness
Material particles, the exhaust temperature through the discharge of selection by winnowing sleeve are not less than 110 DEG C；Step 10, steaming containing water through the discharge of selection by winnowing sleeve
The tail gas of gas carries material particles and enters cloth bag dust extractor, and in this material and tail gas separation, tail gas is up to standard after environmental protection treatment
The material particles such as discharge, directed agents are transported to calcination activation rotary furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450173.3A CN108083287B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin production line application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450173.3A CN108083287B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin production line application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108083287A true CN108083287A (en) | 2018-05-29 |
| CN108083287B CN108083287B (en) | 2019-07-05 |
Family
ID=62180186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711450173.3A Active CN108083287B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin production line application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108083287B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399437A (en) * | 2021-07-05 | 2021-09-17 | 武汉武锅能源工程有限公司 | System and method for distributed fly ash high-temperature melting vitrification utilization |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382657A (en) * | 2002-06-05 | 2002-12-04 | 武汉理工大学 | Process for supplying heat while preparing aluminat cement/active powdered coal ash by coal burning boiler and its products |
| CN101058218A (en) * | 2007-05-25 | 2007-10-24 | 中国地质大学（武汉） | Process for increasing viscosity of kaolinite |
| CN101676203A (en) * | 2008-09-16 | 2010-03-24 | 储晞 | Reactor for producing high purity granular silicon and method thereof |
| CN204999627U (en) * | 2015-09-15 | 2016-01-27 | 江西宝烀高岭土有限公司 | Kaolinic production line |
| CN106241823A (en) * | 2016-08-03 | 2016-12-21 | 杨松 | A kind of using method of active hargil preparation device special |
| CN106311193A (en) * | 2016-08-03 | 2017-01-11 | 杨松 | Using method of reactivation drying rotary furnace for preparing activated clay |
| CN106895412A (en) * | 2017-04-20 | 2017-06-27 | 金圆水泥股份有限公司 | A kind of method of utilization cement kiln two-part disposal of solid castoff burning flying dust |
-
2017
- 2017-12-27 CN CN201711450173.3A patent/CN108083287B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382657A (en) * | 2002-06-05 | 2002-12-04 | 武汉理工大学 | Process for supplying heat while preparing aluminat cement/active powdered coal ash by coal burning boiler and its products |
| CN101058218A (en) * | 2007-05-25 | 2007-10-24 | 中国地质大学（武汉） | Process for increasing viscosity of kaolinite |
| CN101676203A (en) * | 2008-09-16 | 2010-03-24 | 储晞 | Reactor for producing high purity granular silicon and method thereof |
| CN204999627U (en) * | 2015-09-15 | 2016-01-27 | 江西宝烀高岭土有限公司 | Kaolinic production line |
| CN106241823A (en) * | 2016-08-03 | 2016-12-21 | 杨松 | A kind of using method of active hargil preparation device special |
| CN106311193A (en) * | 2016-08-03 | 2017-01-11 | 杨松 | Using method of reactivation drying rotary furnace for preparing activated clay |
| CN106895412A (en) * | 2017-04-20 | 2017-06-27 | 金圆水泥股份有限公司 | A kind of method of utilization cement kiln two-part disposal of solid castoff burning flying dust |
Non-Patent Citations (2)
| Title |
|---|
| 张希等: "城市生活垃圾焚烧飞灰在建筑材料中的资源化利用", 《砖瓦》 * |
| 李来时: ""粉煤灰中提取氧化铝研究新进展"", 《轻金属》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399437A (en) * | 2021-07-05 | 2021-09-17 | 武汉武锅能源工程有限公司 | System and method for distributed fly ash high-temperature melting vitrification utilization |
| CN113399437B (en) * | 2021-07-05 | 2023-12-29 | 武汉武锅能源工程有限公司 | System and method for high-temperature melting vitrification utilization of distributed fly ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108083287B (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101975388B (en) | Biomass boiler system capable of saving energy and reducing emission | |
| CN108120244B (en) | It is a kind of to prepare kaolin grinding drying rotary furnace | |
| CN104829080B (en) | Compound sludge high-temperature pyrolysis device | |
| CN202613898U (en) | Drying device using rotary crushing and spouting fluidization | |
| CN209639466U (en) | Double air-flow whirlwind type expansion driers | |
| CN104949537B (en) | A kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system | |
| CN204768066U (en) | Biomass boiler environmental protection dust collector | |
| CN108131665B (en) | A kind of recirculating fluidized bed roasting revolution all-in-one oven application method | |
| CN104819470A (en) | Biomass solid waste and hazardous waste treatment system | |
| CN105234339B (en) | A kind of environment-friendly biomass particle forge furnace | |
| CN108083287B (en) | It is a kind of to prepare kaolin production line application method | |
| CN204421572U (en) | A kind of rotary drying machine | |
| CN104567299A (en) | Rotary drying device | |
| CN108087869B (en) | A kind of recirculating fluidized bed calcination activation revolution coproduction furnace | |
| CN108002401B (en) | It is a kind of to prepare kaolin production line | |
| CN202081033U (en) | Organic fertilizer polishing dryer | |
| CN204730209U (en) | A kind of living beings class solid waste and the useless treatment system of danger | |
| CN104748573B (en) | It is a kind of from rotary kiln take wind take heat method and desirable wind take heat rotary system | |
| CN2620844Y (en) | Vertical drying machinery | |
| CN206604572U (en) | A kind of direct draught abraum salt drying and crushing device and system | |
| CN108088240B (en) | It is a kind of to prepare kaolin calcination activation rotary furnace application method | |
| CN206425108U (en) | A kind of high-temperature flue gas multi-cyclone dedusting cooler | |
| CN108105763A (en) | It is a kind of to prepare kaolin Circulation fluidized-bed furnace material returning device | |
| CN105001895A (en) | Bio-oil preparation system | |
| CN108117383A (en) | A kind of recirculating fluidized bed calcination activation turns round coproduction stove application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180529 Assignee: QUANZHOU GREEN LOW CARBON Research Institute Assignor: Yang Song Contract record no.: X2020350000041 Denomination of invention: An application method of kaolin production line Granted publication date: 20190705 License type: Exclusive License Record date: 20200824 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: QUANZHOU GREEN LOW CARBON Research Institute Assignor: Yang Song Contract record no.: X2020350000041 Date of cancellation: 20210727 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210923 Address after: 332 Hankou village, Dapu Town, Yongchun County, Quanzhou City, Fujian Province Patentee after: Ye Shenghai Address before: 362000 Yuanyuan, 610 Xinmen Street, Licheng District, Quanzhou City, Fujian Province, and 36 buildings and 6 floors of 1916 Creative Industry Park Patentee before: Yang Song |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211020 Address after: Liu'an Development Zone, Yongchun County, Quanzhou City, Fujian Province (east side of Taoxi bridge) Patentee after: Yongchun County Product Quality Inspection Institute Fujian fragrance product quality inspection center, national incense burning product quality supervision and Inspection Center (Fujian) Address before: 332 Hankou village, Dapu Town, Yongchun County, Quanzhou City, Fujian Province Patentee before: Ye Shenghai |