CN109928767A - Ceramic wet low temperature flouring technology - Google Patents
Ceramic wet low temperature flouring technology Download PDFInfo
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- CN109928767A CN109928767A CN201910219626.4A CN201910219626A CN109928767A CN 109928767 A CN109928767 A CN 109928767A CN 201910219626 A CN201910219626 A CN 201910219626A CN 109928767 A CN109928767 A CN 109928767A
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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Abstract
The present invention relates to ceramic wet powder-making technical field, especially a kind of ceramic wet low temperature flouring technology；It is handled including step 1, slurry dewatering, obtains pug；Step 2 dries the pug under low-temperature condition, reaches the drying clod of predetermined moisture content；Dry clod is broken into the powder particles with certain partial size by step 3；Ceramic powder production technology of the invention improves the technique that traditional ceramics powder uses spray drying tower that ceramic mud is dried, effective use residual heat from kiln furnace dries the small pug of ceramics or ceramic particle in the present invention, the energy consumption of Production of Ceramics process is greatly lowered, improves productivity effect.
Description
Technical field
The present invention relates to ceramic wet powder-making technical field, especially a kind of ceramic wet low temperature flouring technology.
Background technique
Ceramic industry is a high energy consumption, the industry of high pollution.Wet powder-making technique is in ceramic product production process
Important process.
Traditional wet powder-making process flow is ingredient-ball milling slurrying-sieving, except iron-spray drying granulation.Wherein,
The process of spray drying granulation mainly carries out in the spray drying tower, and spray drying tower is that thermal energy consumption and the main of conversion are set
Standby, energy consumption accounts for 35% or more of Production of Ceramics totle drilling cost.
The process of spray drying granulation is usually that aqueous 30%~40% ceramic mud pressurizes through plunger pump by meeting
Aperture require spray gun atomization spray into spray drying tower, while through Combustion of Hot Air Furnace generate high-temperature hot air (800 DEG C in furnace~
1050 DEG C) into spray drying tower, the mud droplet of the hot-air quickly flowed in spray drying tower and atomization sufficiently connects
Touching, takes away rapidly the moisture in mud droplet, is taken away together by negative pressure induced wind machine with exhaust gas therein, evaporated the mud of moisture
Slurry drops become ceramic powder particle.
The mode of this drying-granulating has the following problems:
1, the hot-blast stove of heat source is provided for spray drying tower, fuel is mostly the coals fuel such as water-coal-slurry or coal dust, matchmaker's combustion
The pollutants such as a large amount of SOx, NOx, dust can be discharged in material burning, these pollutants are the main pollutions during Production of Ceramics
Source, although current enterprise is equipped with post-processing device to solve such pollution problem, post-processing device being purchased and running
Somewhat expensive, the production cost for increasing enterprise, do not meet the energy-saving and emission-reduction requirement of national requirements；
2, energy consumption is high, 100 tons of powders of every preparation, this drying mode needs to expend coal fuel and the synthesis electricity consumption 15 of 70KG
Degree, drying cost are very high.
Summary of the invention
The present invention mentions to solve the problems, such as high energy consumption existing for traditional wet powder-making technique, high pollution, high-cost
A kind of ceramic wet low temperature flouring technology supplied.
In order to achieve the above functions, present invention provide the technical scheme that
A kind of ceramic wet low temperature flouring technology, comprising the following steps:
Step 1, slurry dewatering processing, obtain pug；
Step 2 dries the pug under low-temperature condition, reaches the drying clod of predetermined moisture content；
Step 3, by dry clod, broken, granulation obtains the satisfactory powder particles of partial size.
Preferably, before baking, the pug is first divided into small pug, the small pug in the form of sheets, bulk and/or item
Shape.
Preferably, the water content of cake mass described in step 1 is 18%~25%.
Preferably, the temperature of low-temperature condition described in step 2 is between 80 DEG C~250 DEG C.
Preferably, the predetermined moisture content of dry clod described in step 2 is 7%~10%.
Preferably, by realizing low-temperature condition using the hot wind of residual heat from kiln furnace or/and air-heater.
Preferably, the ceramic wet low temperature flouring technology further include:
Step 4, optimization abrasive grain；The resulting powder particle of step 3 is put into material grinder, to the surface of the powder particle
It polishes.
Preferably, small pug described in step 3 is dried in the state of tiling expansion.Preferably, before optimizing abrasive grain,
Reinforcing agent is first added in powder particle, is placed into material grinder after mixing.
Preferably, the powder particles are screened, isolates the finished product powder for meeting Particle size requirements, screens out partial size mistake
Small powder dust；Powder dust squeeze and forms block material.
The beneficial effects of the present invention are: ceramic powder production technology of the invention improves traditional ceramics powder using spray
The technique that ceramic mud is dried in mist drying tower, in the present invention by successively dry through dehydration, low temperature to material-mud
Dry processing and break process, obtained dry powder particle have the characteristics of low water content, which is keeping ceramics
Without expending the excessive burning energy while milling efficiency, the energy consumption of Production of Ceramics process is greatly lowered, improves production effect
Benefit efficiently reduces pollutant and the production cost of enterprise is greatly lowered.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is the structural schematic diagram that high speed cuts mud equipment；
Fig. 3 is the structural schematic diagram of clay shredder structure；
Fig. 4 is the structural schematic diagram of feed hopper；
Fig. 5 is the main view of ceramic material drying equipment；
Fig. 6 is the left view of ceramic material drying equipment；
Fig. 7 is the top view of ceramic material drying equipment；
Fig. 8 is longitudinal cut-away view of ceramic material crushing plant；
Fig. 9 is the lateral cut-away view of ceramic material crushing plant；
Figure 10 is the structural schematic diagram of crushing mechanism；
Figure 11 is the cooperation schematic diagram of quartering hammer and blade；
Figure 12 is the structural schematic diagram of discharging mechanism；
Figure 13 is the structural schematic diagram for actively rolling cage；
Figure 14 is the main view of material grinder；
Figure 15 is the left view of material grinder；
Figure 16 is the structural schematic diagram of pressurizing unit；
Figure 17 is the cooperation schematic diagram of two compression rollers.
Specific embodiment
Embodiment one:
1 to attached drawing 17, the present invention is further elaborated with reference to the accompanying drawing:
A kind of ceramic wet low temperature flouring technology as shown in Figure 1, including successively through ingredient, ball milling, sieving and remove iron, slurry
The process of pond homogenizing, so that the mud that water content is 30%~40% is obtained, above-mentioned process and traditional wet powder-making technique
Concerned process steps it is identical, handled in practice using existing equipment and technology.In the present embodiment, by preparatory
The several pieces raw material got ready requires to carry out mix according to a certain ratio, to obtain required mixed powder, then will mixing
Rear mixed powder is sent into ball milling mechanism and carries out ball-milling treatment, reaches the fine powder material of predetermined fineness with ball milling, then by fine powder material
Be sieved and except iron is handled, to remove the iron filings and impurity thing in fine powder material, slurry will be sent into except the pure powder after iron sieving
Homogenizing processing is in pond to just obtain required mud.
Technique of the invention further includes the steps that following to mud drying process:
Step 1, slurry dewatering processing, obtain pug；
Step 2 dries the pug under low-temperature condition, reaches the drying clod of predetermined moisture content；
Dry clod is broken into the powder particles with certain partial size by step 3.
Slurry dewatering in step 1, we can be carried out using existing dehydration equipment, and existing dehydration equipment mainly has
Two types, one kind are dehydrated using centrifuge or vacuum hydroextractor；Another kind of be dehydrated using filter press.Using
Pug its small volume that centrifuge or the mud of vacuum hydroextractor processing obtain, the length on maximum side is less than 5cm, due to it
Small volume, we can directly be dried these pugs；The bulk obtained after being handled using filter press mud
The volume of pug is big, is unfavorable for drying, and the thickness for needing cake mass to be divided into thickness is less than the small pug of 5cm；Small pug
In the form of sheets, blocky and/or strip.
In the present embodiment, we are using the scape saliva single chamber charging filter press of Jingjin Environmental Protection Inc.'s production to mud
Slurry is dehydrated, the cake mass (filter for being 18%~25% slurry dewatering to the water content that water content is 30%~40%
Cake).Although the equipment is gold concentrate, the tailings glass for gold industry, but be applied to the ceramic mud in the present embodiment
Effect is obvious in dehydration, and obtained filter cake thickness is uniform, and for filter cake greatly to being in cuboid, the length on maximum side is about 2m, thick
Degree is about 4cm.The length of filter cake is larger, it would be desirable to it is carried out it is preliminary it is broken obtain the lesser pug of length, with convenient
In subsequent production process.In the present embodiment, to realize automated production, conveyer belt is arranged in the lower section of filter press in we,
Dewatered filter cake is fallen down on conveyer belt, and is conveyed outward by conveyer belt, in the outside of transmission end of tape, about away from end
At 10cm, be provided with the cutter of a rotation, when filter cake is sent transmission end of tape, into cutter cut coverage when, just by
It is cut into small pieces, after being tentatively crushed, filter cake is divided into the small clod that side length is 5cm~20cm.Certainly, we can also use
The mode of other methods such as hand-crushed carries out preliminary treatment to filter cake.
Obtained small clod after above-mentioned preliminary treatment, volume is also bigger, we need to cut mud device using high speed
Break process is carried out again to it.A kind of high speed as shown in Figure 2 cuts mud device, including pedestal 11, cuts hopper dredger 12 and clay shredder structure
13, it is cylindrical to cut hopper dredger 12, is fixedly mounted on the pedestal 11；It cuts 12 upper top of hopper dredger and is provided with crossbeam 14, clay shredder structure
13 are fixedly mounted on crossbeam 14；The top for cutting hopper dredger 12 is provided with feed hopper 15, and feed hopper 15 is fixed on crossbeam 14, and lower section is set
It is equipped with out hopper dredger 16, hopper dredger 16 is installed on the pedestal 11 out.
Clay shredder structure 13 as shown in Figures 2 and 3 cuts trowel 133, rotary shaft including rotary shaft 131, motor 132 and 3
131 may be rotatably mounted on crossbeam 14, and motor 132 is fixedly mounted on crossbeam 14 and is connected by belt pulley set and rotary shaft 131
It connects, drives rotary shaft 131 to rotate 3 and cut be fixedly mounted in rotary shaft 131 from top to bottom along rotary shaft 131 of trowel 133,
Be equipped with and cut the part of trowel 133 and be located at and cut in hopper dredger 12, rotary shaft 131 with to cut hopper dredger 12 coaxial.
As shown in figure 3, the longitudinal section of feed hopper 15 is in " people " word shape, 1 import 151,2 outlets 152 are provided with, in
Between be equipped with sharp sub-material sword 153, the effect of sub-material sword 153 is that the filter cake fallen into feed hopper 15 is split, make its compared with
It equably falls into and is cut in hopper dredger 12 in both directions, trowel 133 is cut with raising and cuts the rate of mud, and make the body of small pug after cutting
Product is smaller.
As shown in figure 3, every is cut trowel 133 with 3 blades 1331, and neighbouring two are cut the dislocation of trowel 133 and set
It sets, i.e., upper and lower two adjacent blades 1331 in the same direction, the cutting efficiency of trowel 133 are not cut with raising.In addition, cutting mud
The quantity of knife 133 and every quantity for cutting 133 cutter 1331 of trowel can be according to the sizes of the volume of small pug required after cutting
It is increase accordingly or is reduced.
For hopper dredger 16 in cone or truncated cone-shaped, the big lower opening of upper opening is small to collect small pug to facilitate out.In order to
The working condition for facilitating observation clay shredder structure 13, the middle part for cutting hopper dredger 12 are provided with door 121, and door 121 is using transparent sub- gram
Power plate is made.
High speed cut mud device by setting cut hopper dredger 12 and clay shredder structure 13, and on cutting hopper dredger 12 setting 1 into 2 go out into
Hopper 15, small clod, which is fallen into, to be divided into two parts by feed hopper 15 after feed hopper 15 and exports 152 from two of feed inlet respectively
Into cutting in hopper dredger 12, on clay shredder structure 13 from top to bottom high-speed rotating 3 cut trowel 133 gradually small clod be divided into greatly
The small small pug that meets the requirements.
After small clod is cut trowel more than 133 times cuttings, the small pug that partial size is about 1cm~3cm may be partitioned into, to be convenient to
Subsequent drying process.
Fig. 5 to it is attached it is shown in Fig. 7 be the present embodiment use a kind of ceramic material drying equipment, it includes drying box
21, conveying device 22, hot blast conveying pipe road 23, hydrofuge total pipeline 24, wet-emitting blower 25 and circulating fan 26.
The front of drying box 21 is hot wind cavity 211, and rear portion is dry cavity 212.Conveying device 22 includes 5 conveyings
Band, the front and rear of conveyer belt are respectively arranged with driving wheel and driven wheel, and driving wheel is fixedly mounted on the output shaft of motor
And rotation is driven by motor.5 conveyer belts are successively set on from top to bottom in dry cavity 212, and one end of conveyer belt is charging
End, the other end are blanking end, and 5 conveyer belts are 4 chain net belts and 1 conveyor belt, and wherein conveyor belt is arranged most
Lower layer；On dry cavity 212, the tail portion at the blanking end of conveyer belt is tiltedly installed with striker plate 2121, to guarantee small pug
From the feed end that upper one layer of blanking end falls to next layer completely.
To make small pug more uniformly be heated, along the conveying direction of conveyer belt, the top of every chain net belt is also equal
It is even to be provided with 3 stirring rods 29, multi-disc strip material mixing piece, stirring rod are circumferentially evenly arranged on every stirring rod 29
Rotation is driven by motor.When small pug is transported to 29 lower section of stirring rod along chain net belt, the material mixing piece of rotation stirs chain
Small pug above net belt guarantees that small pug is whole by evenly drying to keep small pug heated more evenly.
Along the conveying direction of conveyer belt, the upper and lower part of the demarcation plate 213 of hot wind cavity 211 and dry cavity 212
It is uniformly provided with multiple hot wind through-holes 2131 respectively, the hot wind through-hole 2131 on top is located at the top of top layer's chain net belt,
The hot wind through-hole 2131 of lower part is between undermost chain net belt and conveyor belt；The top of hot wind cavity 211 is uniform
Multiple hot wind inlets 2111 are offered, hot wind inlet 2111 is connected with the one end in hot blast conveying pipe road 23 respectively.Hot wind conveying
The other end of pipeline 23 is connected with the air outlet of the exhaust pipe of kiln and air-heater respectively, and the middle part in hot blast conveying pipe road 23 is also
It is provided with air blower.During actual use, the low temperature shape needed for residual heat from kiln furnace is able to achieve flouring technology of the invention
When state, i.e., the temperature in drying box 21 then directly does small pug using residual heat from kiln furnace between 80~250 DEG C
It is dry, to reach maximum energy-saving effect；When residual heat from kiln furnace deficiency, then starts air-heater and carry out hot wind supplement, to guarantee to dry
Dry equipment can work normally.Temperature in drying box 21 can be examined by the way that temperature sensor is arranged in drying box 21
It surveys, and is controlled by the start and stop of control air-heater, in the art, these are common technological means, herein not to it
Principle is repeated.
The centre at the top of dry cavity 212 is evenly arranged with several circulating fans along the conveying direction of conveyer belt
26, make the hot wind in hot wind cavity 211 in dry 212 internal circulation flow of cavity by circulating fan 26.The top of dry cavity 212
Portion is evenly arranged with several dehumidifier mouths along the conveying direction of conveyer belt in one end far from hot wind inlet 2111, in this implementation
In example, the length of dry cavity 212 is about 20m, is equipped with 9 dehumidifier mouths altogether, and every 3 dehumidifier mouths are one group and pass through dehumidifier subtube
27 connections, each dehumidifier subtube 27 are connected to by wet-emitting blower 25 with hydrofuge total pipeline 24 respectively again, pass through wet-emitting blower 25
Wet wind in dry cavity 212 is taken away.It is provided with regulating valve 28 between wet-emitting blower 25 and dehumidifier subtube 27, passes through adjusting
Valve 28 adjusts air output, to adjust dehumidifier speed.
In the present embodiment, small pug by swing distributing belt machine 6 equably trickle down ceramic material drying equipment most
On the feed end of the chain net belt on upper layer, small pug moves to blanking end from feed end along chain net belt, then from blanking end
It falls on the feed end of next layer of chain net belt, and so on downwards, the drying clod after final drying passes through conveying skin
Band transfers out drying box 21, and the hot wind that residual heat from kiln furnace and/air-heater generate in this process enters hot wind by air blower
In conveyance conduit 23, then through hot wind cavity 211 and by the upper and lower two thermal wind exhaustings through-hole of demarcation plate 213 2131 in circulating fan 26
Under the action of, the circulation up and down in dry cavity 212, to guarantee coming into full contact with for hot wind and small pug, dry hot wind by
After gradually taking away the moisture on small pug, become the lower damp and hot wind of temperature, then be discharged into hydrofuge total pipeline 24 through dehumidifier blower.Small mud
Material is aqueous to be most reduced to 7%~10% after the drying of drying box 21, and transfers out drying box 21 by conveyor belt
Outside.Swinging material distributing machine belt feeder 6 is the common charging equipment of dry industry, structural reference city dealer's product, herein not to it
Principle is repeated.
It should be noted that described wet-emitting blower 25, circulating fan 26 are for ease of description, by wind in the description
The purposes name of machine in the present specification, using the blower for being able to achieve associated uses in city's dealer's product when use.
In step 2, it is unfolded by swinging distributing belt machine 6 and small pug being tiled, it is enterprising is uniformly sprinkled upon chain net belt
Row low temperature drying processing, to guarantee that small pug comes into full contact with dry-heat air, accelerates dry efficiency.Secondly, the present embodiment
Drying cavity 212 in temperature between 80~250 DEG C, by the way that such temperature is arranged to enable moisture in small pug
Enough rapidly evaporations.
In step 3, we are crushed Granulation Equipments by ceramic material and carry out quick crashing and granulation to dry clod.
A kind of ceramic material as shown in Figure 8 and Figure 9 is crushed Granulation Equipments, including cracking cabin 31, disruption elements 32 and goes out
Expect mechanism 33, disruption elements 32 are arranged in cracking cabin 31, and the lower section of cracking cabin 31 is arranged in discharging mechanism 33.
Disruption elements 32 include rotation axis 321, motor A322, the arc-shaped sieve 324 of 8 crushing mechanisms 323 and 2, every 4
The corresponding arc-shaped sieve 324 of a crushing mechanism 323, crushing mechanism 323 is generally uniform to be fixed in rotation axis 321；Circular arc
Shape sieve 324 and rotation axis 321 are coaxial, and are fixedly mounted on the underface of rotation axis 321, uniformly open on arc-shaped sieve 324
Equipped with several through-holes, the diameter of through-hole is 0.5mm~1.5mm.The diameter of through-hole determines powder particles after being crushed and being granulated
The size of maximum particle diameter, the diameter of through-hole can be configured according to the actual needs of production.The both ends of rotation axis 321 are respectively from broken
It is pierced by broken storehouse 31, and both ends may be rotatably mounted on cracking cabin 31 by bearing, wherein one end and motor A322 pass through speed change
Case is connected, and motor A322 drives rotation axis 321 to rotate.
As shown in Figure 10, crushing mechanism 323 includes 2 rotating turrets, 3231,12 blade 3232 and 6 piece quartering hammers 3233；2
A 3231 or so mirror of rotating turret is uniformly fixed with 6 blades 3232 on the circumferencial direction of each rotating turret 3231 to setting；It is broken
Hammer into shape 3233 in long strip, left and right ends are separately fixed at the terminal part of corresponding left and right two panels blade 3232.Certainly in reality
During the use of border, the quantity of quartering hammer 3233 can basis in the quantity of crushing mechanism 323 and each crushing mechanism 323
Actual needs are adjusted.Between the least significant end of quartering hammer 3233 and arc-shaped sieve 324 have certain gap, we
The gap is known as friction gap, and in the present embodiment, which is about 1mm.
Quartering hammer 3233 includes connector 32331 and hammer body 32332；As shown in figure 11, the end of blade 3232 offers
A plurality of non-slip groove 32321, connector 32331 and blade 3232, which cooperate, is correspondingly arranged on tread plate on fixed lower surface
323311, the mounting groove for installing hammer body 32332 is offered in the middle part of upper top surface.In the present embodiment, hammer body 32332 is in length
Cube shape is made of ceramics, the impact effect and make that ceramic hardness is high, density is greatly to be conducive to raising quartering hammer 3233
Use the service life.
As shown in figure 12, discharging mechanism 33 include discharging band 331, actively roll cage 332, passively roll cage 333, motor B334 and
Discharge tape holder 335；It actively rolls cage 332 and passive rolling cage 333 to be rotatably provided on discharging tape holder 335, motor B334 and active
Rolling cage 332, which is connected and driven, actively rolls the rotation of cage 332；Discharging band 331, which is set in, actively to be rolled on cage 332 and passive rolling cage 333.
In the present embodiment, cage 332 and driven rolling cage are actively rolled in spinning taper.The structure of cage 332 is actively rolled in addition to rotation
One end of axis 3321 is longer and be provided with outside connection structure due to that need to connect with motor B334, other parts and passive rolling cage
333 structure is identical.Below for actively rolling cage 332, the structure of the two is illustrated.
As shown in figure 13, actively rolling cage 332 includes rotary shaft 3321, front mounting plate 3322, rear mounting plate 3323, support plate
3323 and several cage items 3324；Front mounting plate 3322, rear mounting plate 3323 and support plate 3323 is cylindrical and support plate
Big, front mounting plate 3322, rear mounting plate of the diameter of 3323 cross section than front mounting plate 3322 and rear mounting plate 3323
3323 and support plate 3323 be separately fixed at the front end, rear end and middle part of rotary shaft 3321；Several cage items 3324 are along rotation
The circumferencial direction of axis 3321 is uniformly distributed, and front end, rear end and the middle part of cage item 3324 are separately fixed at front mounting plate 3322, rear peace
In loading board 3323 and support plate 3323, to form spindle cage body.
Discharging mechanism 33 further includes 9 upper supporting roller 337 and 3 piece snub pulleys 336, and upper supporting roller 337 is uniformly arranged on discharging band
On frame 335, upper supporting roller 337 is in contact with the lower surface of the discharging band 331.The effect of upper supporting roller 337 be to discharging band 331 into
Row support prevents discharging band 331 from deforming when conveying powder particles because excessively bearing a heavy burden.In addition, to prevent discharging band 331 from sending
During material, the front and rear sides of powder particle from discharging band 331 are unrestrained, and the front and rear sides of discharging band 331 are provided with gear edge
311。
When in use, the drying pug after drying falls into the cracking cabin 31 of crushing plant from the feed inlet above crushing plant
In；It isolated, hit by high-speed rotating quartering hammer 3233 in cracking cabin 31, dry pug forms bulky grain after being crashed to pieces and falls into
On arc-shaped sieve 324, the lasting circular-rotation of multiple quartering hammers 3233 can sink to the bulky grain on arc-shaped sieve 324 under
Constant collision drives bulky grain to recycle above arc-shaped sieve 324 and sheds, is broken into granule so that bulky grain gradually be collided
The little particle of diameter；In addition, being squeezed when quartering hammer 3233 turns to arc-shaped 324 top of sieve using the rotation of quartering hammer 3233
Pressure squeezes the little particle of the small particle on arc-shaped sieve 324 to the friction gap of quartering hammer 3233 and arc-shaped sieve 324
In, make to be extruded into the through-hole on the little particle friction circle curved screen 324 in friction gap, so that little particle is rubbed to be formed
The powder particle of ultra-small grain size is granulated by above-mentioned broken and friction, and the final powder particles for meeting Particle size requirements penetrate
Through-hole on arc-shaped sieve 324 falls on discharging band 331 and is transported.
In the process of the invention, we also optimize abrasive grain to above-mentioned powder particles, i.e., carry out to powder particles
Polishing, keeps its surface more smooth.Optimization abrasive grain purpose be increase powder mobility, adjust particle grain composition and
Adjust the bulk density of particle.In the present embodiment, the process for optimizing abrasive grain is realized using material grinder.
As shown in Figure 14 and Figure 15, material grinder includes mounting base 41, abrasive barrel 42 and motor 43.Abrasive barrel 42 is in cylinder
Shape, opening up inclination are rotatably provided in mounting base 41.Circular trough is offered in the middle part of the outer surface of abrasive barrel 42
421, motor 43 is fixedly mounted in mounting base 41, and belt pulley is equipped on the output shaft of motor 43, and belt is set in circular trough
421 and belt pulley on, pass through motor 43 indirectly driving abrasive barrel 42 rotate.
The outer surface of abrasive barrel 42 is evenly arranged with 4 rolling raised lines 422, every rolling raised line along its radial direction
422 are correspondingly arranged on scroll wheel 44, and scroll wheel 44 may be rotatably mounted in mounting base 41, by scroll wheel 44 to abrasive barrel 42 into
Row support, while the frictional force between abrasive barrel 42 and mounting base 41 is reduced, it makes it easier for rotating.
The left and right ends of abrasive barrel 42 are also respectively provided with limit raised line 423, and the effect of limit raised line 423 is to prevent abrasive material
42 or so plays of cylinder.The left and right end of mounting base 41 is respectively arranged with the limited roller 45 matched with limit raised line 423.
After powder particles are put into abrasive barrel 42, motor 43 drives abrasive barrel 42 to rotate, the powder in abrasive barrel 42
The inside meeting phase mutual friction of intergranular or powder particles and abrasive barrel 42 is realized excellent to realize the polishing to powder particles surface
Change abrasive grain.
The process that above-mentioned optimization abrasive material treated powder particles are screened through partial size again, to screen out the too small powder of partial size
Dust screens out the powder dust of partial size 0.05mm~0.18mm in the present embodiment, and sub-argument goes out to meet the finished powder of Particle size requirements
Material, and finished product powder is sent into the finished bin that is preset with store it is spare.
Embodiment two:
The present embodiment is in the basic improved of embodiment one, and the different place of one embodiment one is:
Before being polished using material grinder powder particles, reinforcing agent is added in we in powder particle, then mixing
Powder particle afterwards carries out abrasive material by material grinder.To make to optimize abrasive material, treated that powder particle surface is stained with reinforcing agent.
The effect that powder particles surface is stained with reinforcing agent is to prevent powder particles fragmentation in subsequent process, and improve
The viscosity of powder particles.
We can buy to resell the various reinforcing agents for applying to ceramic body of product to reinforcing agent using current city, in the present embodiment
In, used reinforcing agent is sodium carboxymethylcellulose.
Embodiment three:
The present embodiment is advanced optimized on the basis of embodiment one and embodiment two.
In the present embodiment, our the powder dust too small to partial size obtained in embodiment one and embodiment two returns
It receives, squeeze.
Be pressed through pressurizing unit progress, as shown in figure 16, pressurizing unit include working bin 51 and be set to working bin 51
Two interior compression rollers 52, two compression rollers 52 are parallel and the compression roller 52 that rotates towards each other, and 52 both ends of compression roller are to pass through axis
Seat is held to be fixedly installed in working bin 51.The output end for squeezing motor 101 is passed on from one to another with 102 input terminal of retarder by driving belt
It is dynamic, 102 output end of retarder and the transmission of 103 phase of shaft coupling, shaft coupling 103 and wherein 52 end of the compression roller mutually company of transmission
It connects, two ipsilateral ends of compression roller 52 are provided with the transmission gear 123 for the transmission that is meshed, thus by squeezing motor 101
It drives a compression roller 52 to be rotated through retarder 102 and shaft coupling 103, and utilizes the transmission gear 123 of two engagements
It drives another compression roller 52 to be rotated, finally realizes the movement that two compression rollers 52 rotate towards each other.As shown in figure 17, every
A plurality of arrangement and the extruding slot 521 axially extending along compression roller 52 in a ring are formed on 52 roll surface of root compression roller, two are squeezed
Extruding slot 521 on 52 roll surface of pressure roller correspond with two compression rollers 52 rotate towards each other roll surface the tangent mutually converge to be formed it is crowded
Press chamber 522.Material-falling hopper 53 is provided with above the working bin 51 of the present embodiment.Powder dust is delivered to two extruding from material-falling hopper 53
At 52 roll surface of roller, filling completely squeezes slot 521, as two compression rollers 52 rotate towards each other, squeezes to be formed in roll surface the tangent
Chamber 522 is realized to powder dust extrusion forming, and then obtains the block material consistent with 522 shape of extrusion chamber, and block material is with two
The rotational action of root compression roller 52 is discharged.
Block material is crushed Granulation Equipments by above-mentioned ceramic material again and carries out broken and granulating working procedure, to realize powder
The recycling of dust.
Ceramic wet low temperature flouring technology of the invention, the burning energy without expending excessive can reach low water content
Drying effect greatly reduces dry cost, maintains the milling efficiency of ceramic powder.In addition, due to the energy that burns
The reduction used can greatly reduce the discharge of pollutant, enterprise's production cost is greatly lowered.
Claims (10)
1. a kind of ceramic wet low temperature flouring technology, it is characterised in that: the following steps are included:
Step 1, slurry dewatering processing, obtain pug；
Step 2 dries the pug under low-temperature condition, reaches the drying clod of predetermined moisture content；
Step 3, by dry clod, broken, granulation obtains the satisfactory powder particles of partial size.
2. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: before baking, first the pug
Be divided into small pug, the small pug in the form of sheets, blocky and/or strip.
3. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: cake mass described in step 1
Water content is 18%~25%.
4. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: low-temperature condition described in step 2
Temperature is between 80 DEG C~250 DEG C.
5. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: dry clod described in step 2
Predetermined moisture content is 7%~10%.
6. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: by using residual heat from kiln furnace or/and
The hot wind of air-heater realizes low-temperature condition.
7. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: the ceramic wet low temperature powder work
Skill further include:
Step 4, optimization abrasive grain；The resulting powder particle of step 3 is put into material grinder, the surface of the powder particle is carried out
Polishing.
8. ceramic wet low temperature flouring technology as described in claim 1, it is characterised in that: small pug described in step 3 is flat
It is dried in the state of drawout.
9. ceramic wet low temperature flouring technology as claimed in claim 7, it is characterised in that: before optimization abrasive grain, first in powder
Reinforcing agent is added in grain, is placed into material grinder after mixing.
10. the ceramic wet low temperature flouring technology as described in claim 7 or 9, it is characterised in that: carry out the powder particles
Screening, isolates the finished product powder for meeting Particle size requirements, screens out the too small powder dust of partial size；Extruding shape is carried out to powder dust
At block material.
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| CN201910219626.4A CN109928767B (en) | 2019-03-22 | 2019-03-22 | Wet low-temp powder-making process for ceramics |
| PCT/CN2019/083923 WO2020191843A1 (en) | 2019-03-22 | 2019-04-23 | Process for preparing ceramic powder by means of wet method at low temperature |
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| CN112321303A (en) * | 2021-01-04 | 2021-02-05 | 佛山市蓝之鲸科技有限公司 | Ceramic powder making process and system thereof |
| CN113979754A (en) * | 2021-10-18 | 2022-01-28 | 罗嘉熙 | Novel energy-saving emission-reducing ceramic powder making process |
| CN114409415A (en) * | 2022-01-26 | 2022-04-29 | 佛山市科达机电有限公司 | Novel powder production process and production line thereof |
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| WO2020191843A1 (en) | 2020-10-01 |
| CN109928767B (en) | 2022-01-04 |
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