CN108088240B - 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
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- CN108088240B CN108088240B CN201711448464.9A CN201711448464A CN108088240B CN 108088240 B CN108088240 B CN 108088240B CN 201711448464 A CN201711448464 A CN 201711448464A CN 108088240 B CN108088240 B CN 108088240B
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- Prior art keywords
- calcination activation
- rotating cylinder
- activation
- rotary furnace
- calcination
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Classifications
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- 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.Do not stop rolling, phase mutual friction when it is characterized in that: turning round in calcination activation rotary furnace with it using high aluminium ball, realizes to the grinding of calcination activation rotary furnace bottom cycle fluidized bed burned-coal boiler fly ash is rested on, 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 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 201310554028.5, patent name are that a kind of tool is big straight to Chinese invention patent
The powder body material calcining rotary furnace and its method for calcinating of diameter boiler tube) disclose it is a kind of have large-diameter furnace tube powder body material calcine back
Converter and its method for calcinating, it is characterised in that: including shell, the feeding device at rear portion, boiler tube, the discharging device of front, heating
System, sealing system, automatically controls operating system and air extractor at boiler tube revolution transmission system, the sealing system include before,
Seal closure afterwards；The boiler tube revolution transmission system is arranged at boiler tube rear portion；The boiler tube is corundum furnace tube, i.e. Al2O3Boiler tube, furnace
The diameter of pipe is 600~1400mm, length is 4500~12000mm；Boiler tube inner wall is provided with 6 row baffling plates, every row folding
Flowing plate number of blocks is 2 pieces or more, and the baffling plate is integrally in cuboid, and having a size of 15 × 1 × 3cm, baffling plate is in furnace
Inside pipe wall longitudinal arrangement is uniformly arranged, and baffling plate and boiler tube are that a pressing mold forms；The forward and backward seal closure is respectively set
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 bottom edge of isosceles triangle with
Boiler tube inner wall is linked together, and the apex angle of isosceles triangle is directed toward the center of boiler tube；It includes air-cooled electronic that boiler tube, which turns round transmission system,
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 starting
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 automatic control operating system includes control panel, intelligent temperature display instrument, PLC programmable
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) discloses a kind of calcined phosphogypsum
Revolution stove, characterized in that it includes stove, rotary kiln cylinder, electrostatic precipitator, and rotary kiln cylinder is 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 hot fume import other end and is equipped with outlet and is respectively communicated with flue gas fire tube, and outlet end is equipped with annular gas gathering mask；Boiling
Furnace 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 guarantee the quality and whiteness of product, had not only saved the energy but also had 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 furnace of material, heating device are, for the residence time for increasing material, baffling to be arranged using heating wire corundum furnace tube
Plate, but the dust seal of the feed inlet and outlet of rotary calcining furnace is difficult to solve, such as labyrinth seal of currently used dust seal exists
At a temperature of 1280 DEG C can not reliably working and cause powder body material particle evolution cause environmental pollution, reason is exactly labyrinth seal
Static and dynamic sealing cooperation require high, and rotary calcining furnace 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, to be caused to fail in labyrinth seal；The baffle plate of design is in fact similar to the effect of shovelling plate, if powder material
Complex salt such as sylvite, sodium salt, molysite class in material containing low melting point, can be adhered to corundum furnace tube wall for above-mentioned low melting point fused salt
On, it influences furnace tube heat transfer efficiency while adhering to high-melting-point kaolin particle, 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) is as pollutant using past smoke stack emission after expansion chamber, electrostatic precipitator purification.
Summary 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 is erected on idler assembly, and circle gear is bushed on calcination activation rotating cylinder, the band under the driving of drive gear assemblies
Dynamic calcination activation rotating cylinder is turned round around own central axis line, and drive gear assemblies include driving 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 different ball filler of diameter, and high aluminium ball is returned in calcination activation
Rolling, phase mutual friction are not stopped when in drum body with its revolution.
The materials such as directed agents are delivered into injector by the auger conveyor of step 3, distributor, while high-temperature flue gas is held under the arm
Band circulating fluidized bed combustion coal boiler fly ash enters after the materials such as injector and directed agents mix from hot-flow flue to be flutterred through spreader guiding
To the spiral blade of distributor, is acted on by centrifugal force and being got rid of along spiral blade rolling tangential direction into calcination activation rotating cylinder
Wall is lost kinetic energy by the effects of 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 furnace 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 be avoided calcination activation
The rotary furnace cylinder assembly both ends distinguished and admirable road of cigarette be shorted and guide that spiral blade raises along calcination activation rotating cylinder spiral inner wall
The whirlwind wind band of advance, high-temperature flue gas sweep along fineness qualification to enter along the path advance for the spiral whirlwind wind band that spiral blade raises
Air classifier, to sub-elect the more uniform finished particle of activation degree and fineness.
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
The fineness reached is mechanically pulverized to go even farther, 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 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, while the more uniform finished product of fineness its work
Change degree is also relatively uniform.
Inventors have found that activation of kaoline degree is associated with activation temperature, activation time, grain fineness, three above
Element keeps uniform state, can improve activation efficiency and prevent the different quality problems of activation degree, pass through high aluminium ball
Grinding of the stack layers to circulating fluidized bed combustion coal boiler fly ash improves activation efficiency, reduces activation 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 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, while more uniform its activation degree of finished product of fineness is also relatively uniform；4th, activation of kaoline degree with
Activation temperature, activation time, grain fineness are associated, and three above element keeps uniform state, can improve activation efficiency and
Prevent the different quality problems of activation degree, the grinding by 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 activation time, and control fineness with the method for selection by winnowing
Row reconstruct again.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 2 is a kind of overlooking structure diagram for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 3 is a kind of A-A the schematic diagram of the section structure for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 4 is a kind of B partial enlargement structural representation for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 5 is a kind of C full-page proof structural schematic diagram for preparing kaolin calcination activation rotary furnace application method of the present invention.
Fig. 6 is a kind of D partial enlargement structural representation 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 structural schematic diagram.
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.
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 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, the 18 bushing two groups of rollers in front and back of calcination activation rotating cylinder
Road component 17, positioning are erected on idler assembly 3, and circle gear 16 is bushed on calcination activation rotating cylinder 18, in driving gear
Calcination activation rotating cylinder 18 is driven to turn round around own central axis line under the driving of component 2, drive gear assemblies 2 include driving gear
13 and transmission system 12.
Step 2, calcination activation rotary furnace cylinder assembly 4 include mechanical sealing assembly I 15, circle gear 16, calcination activation time
Drum body 18, roller-way component 17, high aluminium ball stack layers 19, mechanical sealing assembly II 20, lay 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 different ball filler of diameter,
High aluminium ball does not stop rolling, phase mutual friction when turning 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 the auger conveyor 6 of step 3, 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 by centrifugal force and being got rid of along 11 rolling tangential direction of spiral blade to calcination activation
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 of lose kinetic energy and rest on bottom, high aluminium ball stack layers 19 suspend therebetween simultaneously mutual rubbing, 900~1280 in furnace
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 be avoided calcination activation
The 4 distinguished and admirable road of both ends cigarette of rotary furnace cylinder assembly be shorted and guide that spiral blade 11 raises along 18 inner wall of calcination activation rotating cylinder
The whirlwind wind band being threadingly advanced, high-temperature flue gas sweep along fineness to close along the path advance for the spiral whirlwind wind band that spiral blade 11 raises
Lattice enter air classifier 5, 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 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 kaolin calcination activation rotary furnace application method, it is characterized in that: step 1, idler assembly includes roller
Group, pedestal, the bushing two groups of roller-way components in calcination activation rotating cylinder front and back, positioning are erected on idler assembly, and circle gear is bushing
On calcination activation rotating cylinder, calcination activation rotating cylinder is driven to return around own central axis line under the driving of drive gear assemblies
Turn, drive gear assemblies include driving gear and transmission system；Step 2, calcination activation rotary furnace cylinder assembly include mechanical close
Sealing assembly I, circle gear, calcination activation rotating cylinder, roller-way component, high aluminium ball stack layers, mechanical sealing assembly II, in calcination activation
High aluminium ball stack layers are laid in rotating cylinder, due to wearing and not stopping the reason of supplement, it is different that high aluminium ball stack layers form diameter
Ball filler, high aluminium ball in calcination activation rotating cylinder with its revolution when do not stop 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 the materials such as injector and directed agents mix 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 of 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 furnace and be ground into the kaolin of enough fineness at
Product particle；Step 4, air classifier inlet design are three along the circumferential direction uniformly distributed spiral imports, can be avoided calcination activation and return
The converter barrel component both ends distinguished and admirable road of cigarette be shorted and guide that spiral blade raises before calcination activation rotating cylinder spiral inner wall
Into whirlwind wind band, the path for the spiral whirlwind wind band that high-temperature flue gas is raised along spiral blade, which is advanced, sweeps along fineness qualification to enter wind
Device is selected, 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)
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|---|---|---|---|
| CN201711448464.9A CN108088240B (en) | 2017-12-27 | 2017-12-27 | It is a kind of to prepare kaolin calcination activation rotary furnace application method |
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| CN108088240B true CN108088240B (en) | 2019-07-30 |
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| 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 |
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