CN108088240A - It is a kind of to prepare kaolin calcination activation rotary furnace application method - Google Patents
It is a kind of to prepare kaolin calcination activation rotary furnace application method Download PDFInfo
- Publication number
- CN108088240A CN108088240A CN201711448464.9A CN201711448464A CN108088240A CN 108088240 A CN108088240 A CN 108088240A CN 201711448464 A CN201711448464 A CN 201711448464A CN 108088240 A CN108088240 A CN 108088240A
- Authority
- CN
- China
- Prior art keywords
- calcination activation
- rotating cylinder
- rotary furnace
- activation
- aluminium ball
- 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
- 230000004913 activation Effects 0.000 title claims abstract description 80
- 238000001354 calcination Methods 0.000 title claims abstract description 67
- 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 35
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 33
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 239000004411 aluminium Substances 0.000 claims abstract description 31
- 239000003245 coal Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 15
- 239000003546 flue gas Substances 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 239000013589 supplement Substances 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
- 238000009826 distribution Methods 0.000 claims description 2
- 238000012797 qualification Methods 0.000 claims 1
- 239000010881 fly ash Substances 0.000 abstract description 14
- 238000000227 grinding Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000284 resting effect Effects 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 10
- 229910001845 yogo sapphire Inorganic materials 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 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
- 239000005060 rubber Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 208000028571 Occupational disease Diseases 0.000 description 2
- 206010037211 Psychomotor hyperactivity Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 2
- 239000000919 ceramic Substances 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
- 230000006378 damage Effects 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant 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
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical class Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003134 recirculating effect 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
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/34—Arrangements of heating devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (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 calcination activation rotary furnace application method.It is characterized in that：Do not stop rolling, phase mutual friction when being turned round using high aluminium ball in calcination activation rotary furnace with it, realize the grinding to resting on calcination activation rotary furnace bottom cycle fluidized bed burned-coal boiler fly ash, so as to produce qualified kaolin finished particle.
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 roasting work
Change rotary furnace 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 201310554028.5, patent name are big straight for a kind of tool
The powder body material calcining rotary furnace and its method for calcinating of footpath boiler tube）A kind of powder body material for having large-diameter furnace tube is disclosed to calcine back
Converter and its method for calcinating, it is characterised in that：Including housing, the feed arrangement at rear portion, boiler tube, the drawing mechanism of forepart, heating
System, boiler tube revolution transmission system, sealing system automatically control operating system and air extractor, the sealing system include before,
Seal closure afterwards；The boiler tube revolution transmission system is arranged on boiler tube rear portion；The boiler tube be corundum furnace tube, i.e. Al2O3Boiler tube, stove
A diameter of 600~1400mm of pipe, length are 4500~12000mm；Boiler tube inner wall is provided with 6 row baffling plates, often row folding
Flowing plate number of blocks is 2 pieces or more, and the baffling plate is integrally in cuboid, and size is 15 × 1 × 3cm, and baffling plate is in stove
Inside pipe wall longitudinal arrangement is uniformly arranged, and baffling plate is molded with boiler tube for a pressing mold；The forward and backward seal closure is set respectively
In the front and back ends of boiler tube, it is characterised in that：The section of the baffling plate be in isosceles triangle, the base of isosceles triangle with
Boiler tube inner wall is connected as a single entity, and the apex angle of isosceles triangle is directed toward the center of boiler tube；Boiler tube revolution transmission system includes air-cooled electronic
Machine, speed reducer, pinion gear and gear wheel, the gear wheel are assemblied in outside revolution boiler tube；It is air-cooled when ventilated motor starts
Motor drive speed reducer drive, speed reducer drive pinion gear, pinion drive gear wheel, gear wheel drive boiler tube revolution, this
Sample forms gear mechanism transmission；The operating system that automatically controls may be programmed including control panel, intelligent temperature display instrument, PLC
Logic controller and control operation computer；Be provided on the control panel ammeter, temperature display watch, temperature control table, into
Expect frequency converter, boiler tube frequency converter, cooling frequency converter and sealing frequency converter；The intelligent temperature display instrument includes audible-visual alarm lamp；
It is electrically connected between control panel, intelligent temperature display instrument, programmable logic controller (PLC) and control operation computer.Chinese invention patent
（Patent No. CN201210252301.4, patent name are the revolution stove of calcined phosphogypsum）Disclose a kind of calcined phosphogypsum
Revolution stove, it is characterized in that, it include stove, rotary kiln cylinder, electrostatic precipitator, rotary kiln cylinder be located at stove center, stove one end
Equipped with combustion chamber, three partition walls and two firebreaks are equipped at the top of stove, stove bottom is equipped with partition wall and three lower blocks fire under twice
Wall, by stove bottom be separated into six dust chambers and it is high, in, three areas of constant temperature, rotary kiln cylinder inner wall even distribution flue gas fire tube, one
End is equipped with the heat smoke import other end and is equipped with outlet and is respectively communicated with flue gas fire tube, and the port of export is equipped with annular gas gathering mask；Boiling
Stove is combined with rotary kiln can make full use of heat, increase the contact surface of ardealite and rotary kiln smoke-fire-tube, and plays overturning material and make
With ardealite with smoke contacts, does not ensure the quality and whiteness of product, not only saved the energy but also reached the environmental protection of exhaust gas dust
It is required that.
The technical solution purpose that the prior art 1 proposes is to provide that a kind of production capacity is big, low energy consumption, continuous production and is suitble to powder
The rotary calcining stove of material, heating unit are using heating wire corundum furnace tube, to increase the residence time of material, set baffling
Plate, but the dust seal of the feed inlet and outlet of rotary calcining stove is difficult to solve, the dust seal used at present such as labyrinth seal exists
At a temperature of 1280 DEG C can not reliably working and cause powder body material particle effusion cause environmental pollution, reason is exactly labyrinth seal
Static and dynamic sealing cooperation require high, and rotary calcining stove internal-external temperature difference is very big, and static and dynamic sealing cooperation is extremely difficult to require, and
Powder body material, which is easily accessible in labyrinth seal, to be caused to fail；The baffle plate of design is in fact similar to the effect of shovelling plate, if powder material
Above-mentioned low melting point fused salt can be adhered to corundum furnace tube wall by such as sylvite, sodium salt, the molysite class of the complex salt containing low melting point in material
On, it influences furnace tube heat transfer efficiency and adheres to high-melting-point kaolin particle simultaneously, accumulate over a long period, boiler tube and baffle plate fail；It is existing
The technical solution that technology 2 is combined using fluidized bed furnace with rotary kiln, but the flue gas of fluidized bed furnace is not contacted with material, cigarette in flue gas
Dirt（Flying dust）As pollutant using past smoke stack emission after expansion chamber, electrostatic precipitator purification.
The content of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of kaolin calcination activation rotary furnaces for preparing to use
Method, it is characterized in that：
Step 1, idler assembly include roller set, pedestal, bushing two groups of roller-way components before and after calcination activation rotating cylinder, positioning
It is erected on idler assembly, circle gear is bushed on calcination activation rotating cylinder, and roasting is driven under the driving of drive gear assemblies
It burns activation rotating cylinder to turn round around own central axis line, drive gear assemblies include drive gear and transmission system.
Step 2, 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 3, 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 4, 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.
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 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, while the more uniform finished product of fineness its work
Change degree is also than more uniform.
Inventor has found that activation of kaoline degree is associated with activation temperature, soak time, grain fineness, three above
Element keeps uniform state, with regard to that can improve activation efficiency and prevent the quality problems that activation degree differs, passes through high aluminium ball
Grinding of the stack layers to circulating fluidized bed combustion coal boiler fly ash improves activation efficiency, reduces soak time, and doing with selection by winnowing
Method is also prevented from the row reconstruct again of overactivity lattice while controlling fineness.
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, while more uniform its activation degree of finished product of fineness is also than more uniform；4th, activation of kaoline degree with
Activation temperature, soak time, grain fineness are associated, three above element keep uniform state, with regard to can improve activation efficiency and
The quality problems that activation degree differs are prevented, by grinding of the high aluminium ball stack layers to circulating fluidized bed combustion coal boiler fly ash,
Overactivity lattice is also prevented from while improving activation efficiency, reduce soak time, and fineness is controlled with the method for selection by winnowing
Row reconstruct again.
Description of the drawings
Fig. 1 is a kind of main structure diagram for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 2 is a kind of overlooking the structure diagram for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 3 is a kind of A-A cross-sectional views for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 4 is a kind of B partial enlargement structural representations for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 5 is a kind of C full-page proof structure diagrams for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 6 is a kind of D partial enlargement structural representations for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 7 is a kind of E for preparing kaolin calcination activation rotary furnace application method of the present invention to structure diagram.
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.
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 kaolin calcination activation rotary furnace user shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7
Method, it is characterized in that：
Step 1, idler assembly 3 include roller set 21, pedestal 22, bushing two groups of roller-way groups before and after calcination activation rotating cylinder 18
Part 17, positioning are erected on idler assembly 3, and circle gear 16 is bushed on calcination activation rotating cylinder 18, in drive gear assemblies 2
Driving under calcination activation rotating cylinder 18 is driven to be turned round around own central axis line, drive gear assemblies 2 include 13 He of driving gear
Transmission system 12.
Step 2, 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 3, 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 4,5 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.
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 calcination activation rotary furnace application method, it is characterized in that：Step 1, idler assembly include disk roller
Group, pedestal, bushing two groups of roller-way components before and after calcination activation rotating cylinder, positioning are erected on idler assembly, and circle gear is bushing
On calcination activation rotating cylinder, under the driving of drive gear assemblies calcination activation rotating cylinder is driven to be returned around own central axis line
Turn, drive gear assemblies include drive gear and transmission system；Step 2, it is close that calcination activation rotary furnace cylinder assembly includes machinery
Sealing assembly I, circle gear, calcination activation rotating cylinder, roller-way component, high aluminium ball stack layers, mechanical sealing assembly II, in calcination activation
Laying high aluminium ball stack layers in rotating cylinder, due to wearing and not stopping the reason of supplement, high aluminium ball stack layers form diameter and differ
Ball filler, do not stop when high aluminium ball turns round in calcination activation rotating cylinder with it roll, phase mutual friction；Step 3, distribution
The materials such as directed agents are delivered into injector by the auger conveyor of device, while high-temperature flue gas carries under one's arms circulating fluidized bed combustion coal boiler
Flying dust enters after injector is mixed with materials such as directed agents the spiral blade that distributor is jumped on through spreader guiding from hot-flow flue, by
Centrifugal force effect is got rid of along spiral blade rolling tangential direction to calcination activation rotating cylinder inner wall, by calcination activation rotating cylinder
The effects that wall friction, high aluminium ball stack layers, gravity, spiral blade hinder loses kinetic energy and rests on bottom, and high aluminium ball stack layers are suspended in
Simultaneously mutual rubbing therebetween, activation is completed at a temperature of 900~1280 DEG C in stove and be ground into the kaolin of enough fineness into
Product particle；Step 4, air classifier inlet design are three along the circumferential direction uniformly distributed spiral imports, and calcination activation can be avoided to return
The distinguished and admirable road short circuit of converter barrel component both ends cigarette and guide that spiral blade raises along before calcination activation rotating cylinder spiral inner wall
Into whirlwind wind band, the path of the spiral whirlwind wind band that high-temperature flue gas is raised along spiral blade, which is advanced, sweeps along fineness qualification into inlet air
Device is selected, so as to sub-elect the more uniform finished particle of activation degree and fineness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448464.9A CN108088240B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin calcination activation rotary furnace application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448464.9A CN108088240B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin calcination activation rotary furnace application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108088240A true CN108088240A (en) | 2018-05-29 |
| CN108088240B CN108088240B (en) | 2019-07-30 |
Family
ID=62180087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711448464.9A Expired - Fee Related CN108088240B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin calcination activation rotary furnace application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108088240B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850290A (en) * | 2020-08-05 | 2020-10-30 | 龙南县堉然科技有限公司 | Rare earth waste airflow mill oxygen-enriched roasting device and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008045791A (en) * | 2006-08-11 | 2008-02-28 | Takasago Ind Co Ltd | Rotary heat treatment apparatus |
| CN201488531U (en) * | 2009-07-15 | 2010-05-26 | 恒正科技（苏州）有限公司 | Grinding rotary furnace with pulverizing system |
-
2017
- 2017-12-27 CN CN201711448464.9A patent/CN108088240B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008045791A (en) * | 2006-08-11 | 2008-02-28 | Takasago Ind Co Ltd | Rotary heat treatment apparatus |
| CN201488531U (en) * | 2009-07-15 | 2010-05-26 | 恒正科技（苏州）有限公司 | Grinding rotary furnace with pulverizing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850290A (en) * | 2020-08-05 | 2020-10-30 | 龙南县堉然科技有限公司 | Rare earth waste airflow mill oxygen-enriched roasting device and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108088240B (en) | 2019-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108131665B (en) | A kind of recirculating fluidized bed roasting revolution all-in-one oven application method | |
| CN104949537B (en) | A kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system | |
| CN208860109U (en) | A kind of manufacture of cement rotary kiln | |
| CN107314539A (en) | A kind of environmentally friendly vertical fire coal stove provided with vibrating type Lv Chen mechanisms | |
| CN108088240B (en) | It is a kind of to prepare kaolin calcination activation rotary furnace application method | |
| CN108120244A (en) | It is a kind of to prepare kaolin grinding drying rotary furnace | |
| CN110108095A (en) | The microwave hot air combined drying equipment of ceramic material | |
| CN108151530B (en) | It is a kind of to prepare kaolin calcination activation rotary furnace | |
| CN113636769A (en) | Method and equipment for reducing carbon emission in cement clinker production | |
| CN108083287B (en) | It is a kind of to prepare kaolin production line application method | |
| CN108087869B (en) | A kind of recirculating fluidized bed calcination activation revolution coproduction furnace | |
| CN108105763A (en) | It is a kind of to prepare kaolin Circulation fluidized-bed furnace material returning device | |
| CN106824144B (en) | A kind of volatile organic compound from waste gas hypersober prepares dedicated activation granulation tower | |
| CN206891148U (en) | A kind of bicyclic room alternately heating filters dirt intellectuality calciner plant certainly | |
| CN108002401B (en) | It is a kind of to prepare kaolin production line | |
| CN210543390U (en) | High-speed centrifugal spray dryer | |
| CN108147799A (en) | A kind of recirculating fluidized bed roasting revolution all-in-one oven | |
| CN210921796U (en) | Vertical biomass hot blast stove | |
| CN209588709U (en) | High-frequency heating calcining drying kaolin device | |
| RU2337288C1 (en) | Spraying dryer | |
| CN209131375U (en) | A kind of rotary kiln of high-efficiency environment friendly | |
| CN104449879B (en) | A kind of rotary type fixed bed raw coke oven gas dust pelletizing system and method | |
| CN108105762B (en) | It is a kind of to prepare kaolin Circulation fluidized-bed furnace material returning device application method | |
| CN108117383A (en) | A kind of recirculating fluidized bed calcination activation turns round coproduction stove application method | |
| CN108358474B (en) | Continuous air supply coal-saving mixing lime kiln |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190709 Address after: 276624 Shandi Village, Pingshang Town, Lingang Economic Development Zone, Linyi City, Shandong Province Applicant after: LINYI JINHAIHUI TECHNOLOGY CO., LTD. Address before: 362000 Yuanyuan, 610 Xinmen Street, Licheng District, Quanzhou City, Fujian Province, and 36 buildings and 6 floors of 1916 Creative Industry Park Applicant before: Yang Song |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20201227 |