CN108002401B - It is a kind of to prepare kaolin production line - Google Patents
It is a kind of to prepare kaolin production line Download PDFInfo
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- CN108002401B CN108002401B CN201711450174.8A CN201711450174A CN108002401B CN 108002401 B CN108002401 B CN 108002401B CN 201711450174 A CN201711450174 A CN 201711450174A CN 108002401 B CN108002401 B CN 108002401B
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- calcination activation
- rotary furnace
- fluidized bed
- revolution
- grinding
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 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 abstract description 40
- 239000005995 Aluminium silicate Substances 0.000 title abstract description 37
- 235000012211 aluminium silicate Nutrition 0.000 title abstract description 37
- 230000004913 activation Effects 0.000 claims abstract description 101
- 238000001354 calcination Methods 0.000 claims abstract description 99
- 239000003245 coal Substances 0.000 claims abstract description 67
- 238000000227 grinding Methods 0.000 claims abstract description 61
- 238000002485 combustion reaction Methods 0.000 claims abstract description 58
- 238000001035 drying Methods 0.000 claims abstract description 39
- 239000000428 dust Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 35
- 238000013461 design Methods 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 21
- 239000004411 aluminium Substances 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 5
- 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 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 239000013618 particulate matter Substances 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 abstract description 13
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 24
- 230000003134 recirculating effect Effects 0.000 description 12
- 238000000197 pyrolysis Methods 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 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
- 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
- 239000003795 chemical substances by application Substances 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
- 238000000034 method Methods 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
- 238000010438 heat treatment Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 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
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052622 kaolinite Inorganic materials 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
- 230000008569 process Effects 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 208000028571 Occupational disease Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000000919 ceramic Substances 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
- 230000007423 decrease Effects 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
- 239000003517 fume 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
- 239000002893 slag Substances 0.000 description 2
- 239000002689 soil 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
- 239000013589 supplement Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 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
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 230000008859 change Effects 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
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid 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
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000779 smoke Substances 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
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
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
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.It is characterized in that: including calcination activation rotary furnace, circulating fluidized bed combustion coal boiler, electric bag dust extractor, grinding drying rotary furnace, cloth bag dust extractor, the present apparatus, which can be realized, prepares kaolin using waste 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.
Background technique
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；It is mechanically pulverized and the enough fineness of air-flow crushing prepares 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 waste, 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 pollutes the environment, how to turn waste into wealth
And it is always that the art engineers and technicians want the problem of being resolved that high-value-use, which prepares kaolin, wherein needing to solve
Existing practical problem include obtaining enough fineness, adding various proportion directed agents and suitable technological equipment, to make to follow
Ring fluidized bed coal-burning boiler flying dust preparation kaolin meet papermaking, ceramics, rubber and plastic, coating, Enamel Industry requirement chemistry at
Point and physical performance index.(Patent No. CN 201610683499.X, patent name are outside sludge roller to Chinese invention patent
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, blower and condenser, the interspersed tail portion cigarette that recirculating fluidized bed is arranged in of rotary kiln roller
On road, the vapor and foul smell generated in wet mud drying process is sent into recirculating fluidized bed after moisture removal is removed in condenser condensation
Hearth combustion deodorization；There are two air preheaters for setting in back-end ductwork, are arranged respectively on the burner hearth of recirculating fluidized bed
Primary air nozzle connected with overfiren air port；Exhaust gas purification system is filled comprising the active carbon injection set gradually after air preheater
It sets, 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) disclose it is a kind of multi-joint based on pyrolysis of coal
Produce system and method, characterized in that including being capable of respectively independently operated coal pyrolysis unit 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 connect with pyrolysis kiln；The coal-char combustion power generation
Unit includes the circulating fluidized bed boiler connecting with pyrolysis kiln, the heat recovery boiler connecting with circulating fluidized bed boiler and cold slag
Device, the steam turbine being connect with circulating fluidized bed boiler and heat recovery boiler, and the generator being connect with steam turbine；The heat
Solution air cooling and waste-heat recovery device, heat recovery boiler and slag cooler are connect with drier, for providing heat to drier
Flue gas；By the hot semicoke generated after the pyrolysis of coal pyrolysis unit, most is directly entered burning in circulating fluid bed boiler hair
Electricity, another fraction then enter fluidized bed furnace, generate for the hot fume needed for being pyrolyzed；When coal pyrolysis unit and coal-char combustion power generation
One in unit when breaking down, cutting coupling link, another unit therein still is able to independent operating；Chinese invention is special
Sharp (Patent No. CN 200920185135.4, patent name are ball milling rotary furnace) discloses a kind of ball milling rotary furnace, feature
It is that 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, thus
Make the abundant fast reaction of storeroom, ultimately form that capability and performance is stable, the higher product of performance indicator, while energy consumption is lower.
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 design 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 in heating on the back-end ductwork of recirculating fluidized bed, and be unable to satisfy 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 and cracks institute's calorific requirement for fire coal, does not refer to recirculating fluidized bed
The circulation comprehensive of burned-coal fly ash utilizes；The prior art 3, which designs, (to be added between feed system and discharge system equipped with ball milling heating interval
Hot stove pipe) and conventional heating section (furnace tubing), material synthesizes in it by multiple ball milling, mixing, calcining, to make
The abundant fast reaction of storeroom, ultimately forms that capability and performance is stable, the higher product of performance indicator, while energy consumption is lower.If
Adding hot medium is the waste heat flue gas of electrostatic fabric filter discharge after recirculating fluidized bed, and the furnace tubing of the device is obviously not suitable for.
Summary of the invention
In view of the deficiencies of the prior art, kaolin production line is prepared the object of the present invention is to provide a kind of, it is characterized in that: packet
Include calcination activation rotary furnace, circulating fluidized bed combustion coal boiler, electric bag dust extractor, grinding drying rotary furnace, cloth bag dust extractor.
The calcination activation rotary furnace includes distributor, drive gear assemblies, idler assembly, calcination activation revolution furnace tube
Component, air classifier.
The distributor includes auger conveyor, injector, cooling jacket, spreader, locating rack, spiral blade, hot wind
Road.The auger conveyor is connect with injector, and the spreader, spiral blade are fixed on calcination activation revolving drum by locating rack
It is turned round on body and with calcination activation rotating cylinder.The hot-flow flue is connect with injector, the cooling folder of injector periphery package
It covers and passes through mechanical sealing assembly I and couple with calcination activation rotating cylinder.
The drive gear assemblies include transmission system and driving gear, and transmission system is connect with driving gear, the biography
Dynamic system is mounted on the base.
The idler assembly includes roller set, pedestal, and the roller set is mounted on the base.
The 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.
The circle gear is bushed on calcination activation rotating cylinder, drives calcination activation under the driving of drive gear assemblies
Rotating cylinder is turned round around own central axis line.
Bushing two groups of roller-way components before and after the calcination activation rotating cylinder, positioning are erected on idler assembly, Neng Gouyi
The roller set of idler assembly is ask to turn round around own central axis line, the air classifier is turned round by mechanical sealing assembly II and calcination activation
Cylinder connection, air classifier inlet design are three along the circumferential direction uniformly distributed spiral imports.
The distributor is mounted on hot-flow flue central axes and protrudes into calcination activation rotating cylinder, the locating rack and spiral
Blade is in calcination activation rotating cylinder.
The high aluminium ball stack layers are placed in calcination activation rotating cylinder, and calcination activation rotating cylinder is returned around own central axis line
When turning, high aluminium ball stack layers are constantly rolled and phase mutual friction by the effect of the frictional force of calcination activation revolving drum body wall.
The circulating fluidized bed combustion coal boiler includes cyclone separator, burner hearth, revert system, superheater, economizer, empty pre-
Device, the revert system include material returning device, guiding room, and the material returning device includes standpipe, U-shaped valve, refeed line, the guiding room packet
Include air-vent, guide wire, negative pressure chamber, blowing chamber.
The calcination activation rotary furnace design is between the combustion system and heat-exchange system of circulating fluidized bed combustion coal boiler, tool
Body is that the hot-flow flue of calcination activation rotary furnace is connect with the cyclone separator of circulating fluidized bed combustion coal boiler, calcination activation revolution
The high-temperature flue gas of the air classifier discharge of furnace successively passes through superheater, economizer, the air preheater heat exchange of circulating fluidized bed combustion coal boiler.
The electricity bag dust extractor is the finished product capturing device and circulating fluidized bed combustion coal boiler of calcination activation rotary furnace simultaneously
The environment-friendly processing unit of exhaust gas particle object.
Grinding drying rotary furnace include screw-feeder, hot wind sleeve, grinding drying revolution furnace body, selection by winnowing sleeve,
Spiral discharging device.
The screw-feeder design is in hot wind sleeve, and the spiral discharging device design is in selection by winnowing sleeve, the heat
Windband cylinder, selection by winnowing sleeve are dried revolution furnace body with grinding by mechanical seal and are coupled.
The roller is placed in grinding drying rotary furnace body, and the roller material selects chilled cast iron, and roller is with grinding
Drying revolution furnace body revolution, which does not stop to roll, grinds material, and the roll surface design of roller has spiral slot grinding and sharpening, and spiral slot grinding will
It revolution furnace body discharge end is dried to grinding while its material accommodated is sent to sharpening slowly to move.
The grinding drying revolution furnace body has been distributed uniformly and circumferentially short jaw, short jaw on the inner wall of discharge end
Plate is dried revolution furnace body revolution with grinding and is along the circumferential direction moved up and down.
The tail gas of the electricity bag dust extractor discharge enters grinding drying revolution furnace body through hot wind sleeve, flows into from selection by winnowing sleeve
Cloth bag dust extractor.
Inventors have 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 fine grained partial size carried in the flue gas of cyclone separator discharge
~58 μm, main component Al2O3、SiO2With uncombusted C, referred to 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 under the lower situation of oxygen amount after circulating fluidized bed combustion coal boiler furnace high temperature is burnt in coal2Gas
Colloidal sol, with Al2O3It carried under one's arms with uncombusted C particle by high velocity smoke, hit broken, separating at high temperature and enter calcination activation rotary furnace, had
There are biggish specific surface area and cation exchange capacity, in other words, circulating fluidized bed combustion coal boiler fly ash fineness is compared with kaolinite
It was that the fineness reached had and too late to be mechanically pulverized, and activity function is more preferable, and impurity is less.
Inventors have found that realize that the high-value-use of circulating fluidized bed combustion coal boiler fly ash prepares kaolin, need according to
" kaolin and its test method " GB/T 14563-2008 reaches its chemical component 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 benefit
Rolling, phase mutual friction are not stopped when being turned round in calcination activation rotary furnace with it with high aluminium ball, realization is returned to calcination activation is rested on
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 decline, spacing increase while completing lattice reconstruct, it is easy to get 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 falls off also add to height
In the soil finished product of ridge, impurity to be separated is not needed.
Inventors have found that if to realize the high-value-use of circulating fluidized bed combustion coal boiler fly ash prepare kaolin and sufficiently
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 furnace can be realized above-mentioned target, particularly calcination activation rotary furnace
Hot-flow flue is connect 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 successively passes through superheater, economizer, the air preheater heat exchange of circulating fluidized bed combustion coal boiler.
Inventors have found that " cleaner designs installation and operation maintenance and standard criterion operating guidance " (Jilin phonotape and videotape publication
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, high-temperature flue gas is discharged after superheater, economizer, air preheater heat exchange cooling in calcination activation rotary furnace, can satisfy
Use condition is stated, electrostatic fabric filter reaches while being the finished product capturing device and circulating fluidized bed combustion coal pot of calcination activation rotary furnace
The purpose of the environment-friendly processing unit of furnace exhaust particulate matter.
Inventors have found that since the use temperature of calcination activation rotary furnace calcination activation is 900~1280 DEG C, and recycle stream
The temperature for changing bed coal-burning boiler thorax is 900 ± 50 DEG C, because fluosolids, that is, coking loses fluidized state and leads more than after above-mentioned temperature
Cause is unable to operate normally, while burner hearth no longer arranges heating surface, calcination activation in addition to water wall surface is arranged in fluosolids part
The solution of operating temperature needed for rotary furnace is inside conveying fine coal powder burning to supplement required calorific value.
Inventors have found that the effect of material returning device is the high-temperature solid particle that cyclone separator is separated, it is logical through standpipe
The isobaric air compartment air-supply for crossing bottom, sends burner hearth back to by refeed line and burns again, there is U-shaped valve, U-shaped valve between standpipe and refeed line
Bottom has isobaric air compartment air-supply to guarantee 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, roasting
The discharge end for activating rotary furnace is air classifier, and design requirement flue gas flow rate is lower, to reduce the finished particle kinetic energy carried, thus
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 to the air-supply of circulating fluidized bed combustion coal boiler thorax requirement is big for wind pressure, air quantity is small, therefore furnace
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 for entering calcination activation rotary furnace
The ratio of coal-burning boiler flying dust determines that in other words, returning charge amount increases, and circulating fluidized bed combustion coal boiler flies via cyclone separator
Ash increases, and the load of air classifier increases, and isolated efficiency reduces.To solve the above problems, design is led in the outlet end of refeed line
Draw room, guiding room is negative pressure state, by designing the guide wire by refeed line outlet, reduces the thorax of refeed line outlet part
Pressure makes circulating fluidized bed combustion coal pot to reduce the stock column height of standpipe, realize material balance and guarantee the purpose of separative efficiency
Furnace effectively can be combined and be run well with calcination activation rotary furnace.
Inventors have found that prevent exhaust emission from leaking, 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 sealing 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 can be very well
The purpose of solving cooling, lubricating, is dust-proof.
Inventors have found that the purpose of design distributor is supplement high aluminium ball and conveying directed agents, the powders such as cleaned coal, go out at it
Design spreader main purpose in mouth end is the above-mentioned material of dispersion and uniformly mixes 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 of 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.
Inventors have found that air classifier inlet design is three along the circumferential direction uniformly distributed spiral imports, roasting can be avoided
Activation rotary furnace both ends cigarette distinguished and admirable road is shorted and guide that spiral blade raises along the advance of calcination activation rotating cylinder spiral inner wall
Whirlwind wind band, and since import draught area relatively exports big, flue gas flow rate is reduced under conditions of same ventilation quantity, also means
The particle kinetic energy of carrying reduces, to sub-elect the finished particle of enough fineness.
Inventors have 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 being discharged after being purified by electrostatic fabric filter still has 150~160 DEG C, this part
Fume afterheat is undoubtedly more appropriate for the baking process of kaolin diverting agent and fuel.According to " kaolin and its test
Method " GB/T 14563-2008 reaches kaolin chemical component and physical property requirements, and it must be the kaolinic Al of adjustment2O3/
SiO2Than etc. addition diverting agent and fuel, the ore raw materials as diverting agent must be ground to the fineness that reach certain and 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.
Inventors have 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 not will lead to cleaned coal particle in grinding drying revolution
Spontaneous combustion and coal-fired outer water can be allowed to be dried for standby in furnace process of lapping.
Inventors have found that prevent the leakage of exhaust gas particle object from causing environmental pollution, 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 are typically employed in dynamic and static ring sealing face spray liquid
The purpose of pressure oil can solve cooling very well, lubricate, be dust-proof.
Inventors have found that diverting agent and cleaned coal particle deliver into grinding drying rotary furnace through screw-feeder, 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 design of roller has 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 be greatly improved compared with iron ball using the working efficiency of mutual rubbing, and energy consumption is greatly reduced.
Inventors have found that 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 material of roller select chill alloy cast iron relatively more suitable
It closes.
Inventors have found that grinding drying revolution furnace body feed end design has hot wind sleeve, discharge end design has 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
When 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 be crushed, the impurity of larger granularity is discharged by spiral discharging device.
Compared with the existing technology, the present invention, which at least contains, has the advantage that first, and circulating fluidized bed combustion coal boiler fly ash is pot
The most common waste in furnace 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 kaolin is used to prepare, and can not only be reduced environmental pollution, and
And production cost can be reduced；The high-value-use of second, Yao Shixian circulating fluidized bed combustion coal boiler fly ash prepares kaolin, needs
Reach its chemical component and physical property requirements according to " kaolin and its test method " GB/T 14563-2008, 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
This does not stop rolling, phase mutual friction when turning round in calcination activation rotary furnace with it using high aluminium ball, realization is lived to roasting is rested on
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 decline, spacing increase while completing lattice reconstruct, it is easy under high aluminium ball rubbing
It obtains fineness and reaches 1000~1200 mesh kaolin finished products, while the component particles that the mutual rubbing of high aluminium ball falls off also are supplemented
Into kaolin finished product, impurity to be separated is not needed；Third, the sealing of calcination activation rotary furnace both ends use 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 be avoided the calcination activation rotary furnace both ends distinguished and admirable road of cigarette and be shorted 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 same ventilation quantity, also means that the particle kinetic energy of carrying reduces, to sub-elect enough thin
The finished particle of degree；5th, by designing the guide wire by refeed line outlet, reduction refeed line exports the gun pressure of part, from
And reduce the stock column height of standpipe, realize material balance and guarantee separative efficiency purpose, make circulating fluidized bed combustion coal boiler with
Calcination activation rotary furnace effectively can be combined and be 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 of furnace connects, and the high-temperature flue gas of the air classifier discharge of calcination activation rotary furnace successively passes through circulating fluidized bed combustion coal
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 effective use recirculating fluidized bed burner hearth burning
It traps separate through electrostatic fabric filter again through superheater, economizer, air preheater heat exchange, the tail gas being discharged after being purified by electrostatic fabric filter
Drying preheating of the waste heat for materials such as diverting agents, 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 not will lead to cleaned coal particle and exist
Grinding dries spontaneous combustion in rotary furnace process of lapping and coal-fired outer water can be allowed to be dried for standby；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 working efficiency of mutual rubbing, energy consumption is greatly reduced.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view for preparing kaolin production line of the present invention.
Fig. 2 is a kind of A-A the schematic diagram of the section structure for preparing kaolin production line of the present invention.
Fig. 3 is a kind of B partial enlargement structural representation for preparing kaolin production line of the present invention.
Fig. 4 is a kind of C full-page proof structural schematic diagram for preparing kaolin production line of the present invention.
Fig. 5 is a kind of D for preparing kaolin production line of the present invention to structural schematic diagram.
Fig. 6 is a kind of E partial enlargement structural representation for preparing kaolin production line of the present invention.
Fig. 7 is a kind of F partial enlargement structural representation for preparing kaolin production line of the present invention.
Fig. 8 is a kind of G-G the schematic diagram of the section structure for preparing kaolin production line of the present invention.
Fig. 9 is a kind of H partial enlargement structural representation for preparing kaolin production line of the present invention.
Figure 10 is a kind of I full-page proof structural schematic diagram for preparing kaolin production line of the present invention.
Figure 11 is a kind of J partial enlargement structural representation for preparing kaolin production line of the present invention.
Figure 12 is a kind of K partial enlargement structural representation for preparing kaolin production line 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 V-cloth bag of rotary furnace dust extractor
1- distributor 2- drive gear assemblies 3- idler assembly
4- calcination activation rotary furnace cylinder assembly 5- air classifier 6- auger conveyor 7- injector
8- cooling jacket 9- spreader 10- locating rack 11- spiral blade
12- transmission system 13- driving gear 14- hot-flow flue 15- mechanical sealing assembly I
16- encloses gear 17- roller-way component 18- calcination activation rotating cylinder
II 21- roller set 22- pedestal of 19- high aluminium ball stack layers 20- mechanical sealing assembly
23- cyclone separator 24- burner hearth 25- revert system 26- material returning device
27- guides room 28- standpipe 29-U type valve 30- refeed line 31- air-vent
32- guide wire 33- negative pressure chamber 34- blowing chamber 35- superheater 36- economizer
37- air preheater 38- screw-feeder 39- hot wind sleeve 40- grinding drying revolution furnace body 41-
The short jaw 45- sharpening 46- spiral slot grinding of selection by winnowing sleeve 42- spiral discharging device 43- roller 44-.
Specific embodiment
The present invention is described further with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, 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, it is characterized in that: including calcination activation rotary furnace I, circulating fluidized bed combustion coal boiler II, electric bag dust extractor III, grinding
Dry rotary furnace IV, cloth bag dust extractor V.
The calcination activation rotary furnace I includes distributor 1, drive gear assemblies 2, idler assembly 3, calcination activation rotary furnace
Cylinder assembly 4, air classifier 5.
The distributor 1 includes auger conveyor 6, injector 7, cooling jacket 8, spreader 9, locating rack 10, spiral paddle
Leaf 11, hot-flow flue 14.The auger conveyor 6 is connect with injector 7, and the spreader 9, spiral blade 11 are consolidated by locating rack 10
It is scheduled on calcination activation rotating cylinder 18 and is turned round with calcination activation rotating cylinder 18.The hot-flow flue 14 is connect with injector 7,
It wraps up cooling jacket 8 and is coupled by mechanical sealing assembly I 15 with calcination activation rotating cylinder 18 in 7 periphery of injector.
The drive gear assemblies 2 include transmission system 12 and driving gear 13, and transmission system 12 and driving gear 13 connect
It connects, the transmission system 12 is mounted on pedestal 22.
The idler assembly 3 includes roller set 21, pedestal 22, and the roller set 21 is mounted on pedestal 22.
The calcination activation rotary furnace cylinder assembly 4 includes mechanical sealing assembly I 15, circle gear 16, calcination activation revolution
Cylinder 18, roller-way component 17, high aluminium ball stack layers 19, mechanical sealing assembly II 20.
The circle gear 16 is bushed on calcination activation rotating cylinder 18, and roasting is driven under the driving of drive gear assemblies 2
Activation rotating cylinder 18 is burnt to turn round around own central axis line.
The hot-flow flue 14 is connect by mechanical sealing assembly I 15 with calcination activation rotating cylinder 18, the calcination activation
The 18 bushing two groups of roller-way components 17 in front and back of rotating cylinder, positioning are erected on idler assembly 3, can rely on the roller of idler assembly 3
Wheel group 21 is turned round around own central axis line, and the air classifier 5 is connected by mechanical sealing assembly II 20 and calcination activation rotating cylinder 18
It connects, 5 inlet design of air classifier is three along the circumferential direction uniformly distributed spiral imports.
The distributor 1 is mounted on 14 central axes of hot-flow flue and protrudes into calcination activation rotating cylinder 18, the locating rack
10 and spiral blade 11 be in calcination activation rotating cylinder 18.
The high aluminium ball stack layers 19 are placed in calcination activation rotating cylinder 18, and calcination activation rotating cylinder 18 is in itself
When axis turns round, high aluminium ball stack layers 19 are constantly rolled by the effect of the frictional force of 18 wall of calcination activation rotating cylinder and are mutually rubbed
It wipes.
The circulating fluidized bed combustion coal boiler II include cyclone separator 23, burner hearth 24, revert system 25, superheater 35,
Economizer 36, air preheater 37, the revert system 25 include material returning device 26, guiding room 27, the material returning device 26 include standpipe 28,
U-shaped valve 29, refeed line 30, the guiding room 27 include air-vent 31, guide wire 32, negative pressure chamber 33, blowing chamber 34.
The calcination activation rotary furnace I design circulating fluidized bed combustion coal boiler II combustion system and heat-exchange system it
Between, particularly the hot-flow flue 14 of calcination activation rotary furnace I is connect with the cyclone separator 23 of circulating fluidized bed combustion coal boiler II,
The high-temperature flue gas that the air classifier 5 of calcination activation rotary furnace I is discharged successively pass through circulating fluidized bed combustion coal boiler II superheater 35,
Economizer 36, air preheater 37 exchange heat.
The electricity bag dust extractor III is the finished product capturing device and circulating fluidized bed combustion coal pot of calcination activation rotary furnace I simultaneously
The environment-friendly processing unit of II exhaust gas particle object of furnace.
The grinding drying rotary furnace IV includes screw-feeder 38, hot wind sleeve 39, grinding drying revolution furnace body 40, wind
Select sleeve 41, spiral discharging device 42.
The design of screw-feeder 38 is in hot wind sleeve 39, and the design of spiral discharging device 42 is in selection by winnowing sleeve 41
Interior, the hot wind sleeve 39, selection by winnowing sleeve 41 are dried revolution furnace body 40 with grinding by mechanical seal and are coupled.
The roller 43 is placed in grinding drying revolution furnace body 40, and 43 material of roller selects chilled cast iron, roller
43, which do not stop rolling with the grinding drying revolution revolution of furnace body 40, grinds material, and the roll surface design of roller 43 has spiral slot grinding 46 and grinds
It is dried revolution 40 discharge end of furnace body to grinding while material that spiral slot grinding 46 is accommodated is sent to sharpening 45 and delayed by sword 45
It is slow mobile.
The grinding drying revolution furnace body 40 has been distributed uniformly and circumferentially short jaw 44 on the inner wall of discharge end,
Short jaw 44 is dried the revolution revolution of furnace body 40 with grinding and is along the circumferential direction moved up and down.
The tail gas of III discharge of electricity bag dust extractor enters grinding drying revolution furnace body 40 through hot wind sleeve 39, from selection by winnowing set
Cylinder 41 flows into cloth bag dust extractor V.
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 is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to of the invention
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (1)
1. a kind of prepare kaolinic production line, it is characterized in that: include calcination activation rotary furnace, circulating fluidized bed combustion coal boiler,
Electric bag dust extractor, grinding drying rotary furnace, cloth bag dust extractor；Calcination activation rotary furnace includes distributor, drive gear assemblies, support
Roll assembly, calcination activation rotary furnace cylinder assembly, air classifier；Distributor includes auger conveyor, injector, cooling jacket, divides
Flow cone, locating rack, spiral blade, hot-flow flue, auger conveyor are connect with injector, and the spreader, spiral blade are by positioning
Frame is fixed on calcination activation rotating cylinder and turns round with calcination activation rotating cylinder, and hot-flow flue is connect with injector, injector
Periphery package cooling jacket is simultaneously coupled by mechanical sealing assembly I with calcination activation rotating cylinder；Drive gear assemblies include passing
Dynamic system and driving gear, transmission system are connect with driving gear, and transmission system is mounted on the base；Idler assembly includes roller
Group, pedestal, roller set are mounted on the base；Calcination activation rotary furnace cylinder assembly includes mechanical sealing assembly I, circle gear, roasting
Activation rotating cylinder, roller-way component, high aluminium ball stack layers, mechanical sealing assembly II are burnt, circle gear is bushed in calcination activation revolving drum
On body, calcination activation rotating cylinder is driven to turn round around own central axis line under the driving of drive gear assemblies；Calcination activation revolution
Bushing two groups of roller-way components before and after cylinder, positioning are erected on idler assembly, and the roller set of idler assembly can be relied on around itself
Central axes revolution, air classifier are coupled by mechanical sealing assembly II with calcination activation rotating cylinder, and air classifier inlet design is edge
Three uniformly distributed spiral imports of circumferencial direction；Distributor is mounted on hot-flow flue central axes and protrudes into calcination activation rotating cylinder,
Locating rack and spiral blade are in calcination activation rotating cylinder；High aluminium ball stack layers are placed in calcination activation rotating cylinder, roasting
When burning activation rotating cylinder around the revolution of own central axis line, effect of the high aluminium ball stack layers by the frictional force of calcination activation revolving drum body wall
Constantly rolling and phase mutual friction；Circulating fluidized bed combustion coal boiler includes cyclone separator, burner hearth, revert system, superheater, saves coal
Device, air preheater, revert system include material returning device, guiding room, and material returning device includes standpipe, U-shaped valve, refeed line, and guiding room includes drawing
Air port, guide wire, negative pressure chamber, blowing chamber；Calcination activation rotary furnace design circulating fluidized bed combustion coal boiler combustion system and
Between heat-exchange system, particularly the cyclone separator of the hot-flow flue of calcination activation rotary furnace and circulating fluidized bed combustion coal boiler connects
It connects, the high-temperature flue gas of the air classifier discharge of calcination activation rotary furnace successively passes through the superheater of circulating fluidized bed combustion coal boiler, saves
Coal device, air preheater heat exchange；Electric bag dust extractor is the finished product capturing device and circulating fluidized bed combustion coal of calcination activation rotary furnace simultaneously
The environment-friendly processing unit of boiler waste gas particulate matter；Grinding drying rotary furnace includes screw-feeder, hot wind sleeve, grinds and dry back
Rotary furnace body, selection by winnowing sleeve, spiral discharging device, screw-feeder design in hot wind sleeve, and spiral discharging device is designed in selection by winnowing set
In cylinder, hot wind sleeve, selection by winnowing sleeve are dried revolution furnace body with grinding by mechanical seal and are coupled；Roller is placed on grinding and dries back
In rotary furnace body, roller material selects chilled cast iron, and roller does not stop to roll with grinding drying revolution furnace body revolution grinds material, grinds
The roll surface design of roller has spiral slot grinding and sharpening, dries it to grinding while the material that spiral slot grinding is accommodated is sent to sharpening
Dry revolution furnace body discharge end slowly moves；Grinding drying revolution furnace body is distributed uniformly and circumferentially on the inner wall of discharge end
There is short jaw, short jaw is dried revolution furnace body revolution with grinding and along the circumferential direction moved up and down；The tail gas of electric bag dust extractor discharge
Enter grinding drying revolution furnace body through hot wind sleeve, flows into cloth bag dust extractor from selection by winnowing sleeve.
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Effective date of registration: 20211022 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 |