CN106977212A - A kind of method and its recovery system of powder classification recycling - Google Patents
A kind of method and its recovery system of powder classification recycling Download PDFInfo
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Abstract
The invention discloses the method and its recovery system of a kind of powder classification recycling, comprise the following steps：Step A, ceramic powder is classified with the color after burning till according to dried chemical composition, different classes of ceramic powder classification carries out finished product base-material after spray drying and dedusting, and the ceramic powder being collected into after dedusting is deposited according to category classification, it is ceramic feed back to define the ceramic powder being collected into after dedusting；Step B, extracts same category of ceramic feed back and slurry is made.The method of the powder classification recycling is spray-dried by classifying to ceramic powder and classification is reclaimed, avoid the problem of ceramic feed back chemical composition and powder color collected by bag-type dust have differences big, and then avoid causing the ceramic firing deformation degree made and strength fluctuation big using the big ceramic feed back of difference, realize to the recycling using ceramic feed back, reduce raw material usage quantity and discarded object yield.
Description
Technical field
The present invention relates to method and its recovery system in architectural pottery field, more particularly to a kind of classification recycling of powder
System.
Background technology
Raw material is mainly crushed by the way of wet ball grinding in ceramic industry, then powder is made by spray drying, in spray
During mist is dried, particle tiny ceramic powder is taken away while tail gas is taken away, according to statistics, tail gas takes away ceramic powder
The weight of material accounts for the 5% of ceramic powder production.In order to reduce the solids particles being discharged into air, generally adopt at present
With the mode of bag-type dust, the dust-filtering in tail gas is fallen, Bag filter how is handled and gets off dust as urgently to be resolved hurrily
Problem.Enterprise produces multiple product simultaneously in practice, therefore spray dryer handles different types of ceramic powder so that dedusting
There is larger difference in the powder being collected into, and particle is comparatively fine after chemical composition and burning in color, if therefore straight
Connect and ball milling, powder processed carried out to the ceramic feed back after spray drying and used, then the percent of firing shrinkage of the ceramic burnt out is big,
Easily deformed when burning till.
The content of the invention
It is an object of the invention to propose a kind of method and its recovery system of powder classification recycling, by pottery
Ceramic powder classification spray drying and classification are reclaimed, it is to avoid cause the ceramic made to burn till receipts using the big ceramic feed back of difference
Contracting is big and strength fluctuation is big, effectively reduces powder loss, reduces raw material usage quantity and discarded object yield.
For up to this purpose, the present invention uses following technical scheme：
A kind of method of powder classification recycling, comprises the following steps：
Step A, classifies according to dried chemical composition with the color after burning till to ceramic powder, different classes of
Ceramic powder classification carry out spray drying and dedusting after finished product base-material, and by the ceramic powder being collected into after dedusting according to
Category classification is deposited, and it is ceramic feed back to define the ceramic powder being collected into after dedusting；
Step B, extracts same category of ceramic feed back and slurry is made；
Step C, will be made the ceramic feed back after slurry and carries out scattered sieving in step B；
Step D, to being handled through step C after ceramic feed back carry out composition detection, and by composition detection result and corresponding
Finished product base material formulation carries out contrast and draws component difference data, and the composition of ceramic feed back is carried out according to the component difference data
Adjustment, makes the composition of ceramic feed back consistent with corresponding finished product base material formulation；
Step E, is spray-dried to the ceramic feed back after being handled through step D, and by the ceramic feed back after spray drying
It is incorporated into finished product base-material made from step A, produces ceramic.
Preferably, in the step D, plastic mud material is contained in the raw material added during adjustment toward ceramic feed back.
Preferably, the step E also includes prefabrication detection：
Step E1, the ceramic feed back after spray drying is incorporated into finished product base-material made from step A, so as to be made prefabricated
Product base-material, the incorporation of the ceramic feed back is 5%~12% by mass percentage；
Step E2, is pressed into adobe by the prefabrication base-material in step E1 and is burnt till, and preformed bricks are made；
Step E3, detects the property indices of the preformed bricks, if all properties index of the preformed bricks all reaches
Production requirement can then carry out the batch production of ceramic；If the preformed bricks have one or more of performance indications to be not up to production
It is required that then adjusting the incorporation of the ceramic feed back, newly formed preformed bricks of laying equal stress on carry out detection untill up to standard.
Preferably, the step B is specially：
Step B1, according to mass percent：Ceramic feed back 64%~67%, water 33%~36% is weighed same category of
Ceramic feed back and water；
Step B2, the water that the step B1 is weighed is added toward slurrying pond；Then according to mass percent：Sodium tripolyphosphate
0.04%~0.06%, water 99.94%~99.96% adds sodium tripolyphosphate toward slurrying pond and stirred；
Step B3, adds ceramic feed back that the step B1 weighs toward slurrying pond and stirs, ceramic slurry is made.
Preferably, the step C is specially：
Step C1, is added suitable quantity of water toward ceramic slurry made from step B, is reached with the flow velocity for adjusting ceramic slurry：100ml
Volt cup delivery time 35s~45s；
Step C2, is transported to dispersion cylinder by the ceramic slurry after being adjusted through step C1 and is disperseed；
Step C3, the ceramic slurry after disperseing, which is transported to rotate through, crosses 100 eye mesh screens in cribellum.
Preferably, the step C also includes：Step C4, is carried out to the ceramic slurry after sieving except iron processing.
Preferably, in the step A, the color according to dried chemical composition and after burning till divides ceramic powder
Into polishing without toner material, the light powder of polishing, it is modelled after an antique without toner material, be of little use powder and dark powder；
For powder and the dark powder of being of little use, collected ceramic feed back directly squeezes into mud cake；
For polishing no toner material, polishing light powder and modelled after an antique without toner material, collected ceramic feed back is returned
Receive and recycle, that is, carry out the step B to step E processing.
Preferably, the recovery system of the method for the powder classification recycling, be from upstream to downstream includes ball successively
Mill unit, spray drying unit, bag-type dust unit, reclaim filler bin group, slurrying pond, dispersion cylinder, rotated cribellum and except iron
Device；
The ball milling unit includes many table grinders, and the spray drying unit includes multiple spray drying units, described
Bag-type dust unit includes multiple sack cleaners, and the recovery filler bin group includes multiple recovery filler bins；
Multiple spray dryers in the same spray drying unit connect the same sack cleaner.
Preferably, the slurrying pond and the inside of dispersion cylinder are equipped with agitator；
The charging aperture of the dispersion cylinder is arranged at the bottom of the dispersion cylinder, and the discharging opening of the dispersion cylinder is arranged at described
The top of dispersion cylinder；
The screen cloth for rotating cribellum is 100 eye mesh screens.
The method of the powder classification recycling is spray-dried by classifying to ceramic powder and classification is reclaimed, it is to avoid
The problem of ceramic feed back chemical composition and powder color collected by drying, dedusting have differences big, and then avoid utilizing difference
Big ceramic feed back cause the ceramic made to burn till contraction is big and strength fluctuation is big, effectively reduce powder loss, reduce original
Materials'use quantity and discarded object yield, it is to avoid the waste of powder, the powder reuse ratio collected by dedusting reach 90%
More than, reduce production cost.
Brief description of the drawings
The present invention will be further described for accompanying drawing, but the content in accompanying drawing does not constitute any limitation of the invention.
Fig. 1 is the recovery system structural representation of one of embodiment of the invention；
Fig. 2 is the spray drying unit structure chart of one of embodiment of the invention.
Wherein：Slurrying pond 1；Dispersion cylinder 2；Rotated cribellum 3；Ball milling unit 4；It is spray-dried unit 5；Bag-type dust unit
6；Reclaim filler bin group 7；Tramp iron separator 8；Spray dryer 51；Sack cleaner 61.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Embodiment one,
The method of the powder classification recycling of the present embodiment, comprises the following steps：
Step A, classifies according to dried chemical composition with the color after burning till to ceramic powder, different classes of
Ceramic powder classification carry out spray drying and dedusting after finished product base-material, and by the ceramic powder being collected into after dedusting according to
Category classification is deposited, and it is ceramic feed back to define the ceramic powder being collected into after dedusting；
Step B, extracts same category of ceramic feed back and slurry is made；
Step C, will be made the ceramic feed back after slurry and carries out scattered sieving in step B；
Step D, to being handled through step C after ceramic feed back carry out composition detection, and by composition detection result and corresponding
Finished product base material formulation carries out contrast and draws component difference data, and the composition of ceramic feed back is carried out according to the component difference data
Adjustment, makes the composition of ceramic feed back consistent with corresponding finished product base material formulation；
Step E, is spray-dried to the ceramic feed back after being handled through step D, and by the ceramic feed back after spray drying
It is incorporated into finished product base-material made from step A, produces ceramic.
The method of powder classification recycling is spray-dried by classifying to ceramic powder, and to spray drying after
Ceramic feed back classified use collected by tails dedusting, it is to avoid ceramic feed back chemical composition and powder collected by tails dedusting
The problem of color has differences big, and then avoid causing the ceramic made to burn till contraction using the big ceramic feed back of difference
Big and strength fluctuation is big, effectively reduces powder loss, reduces raw material usage quantity and discarded object yield.
The ceramic feed back that the method for the powder classification recycling is reclaimed to classification carries out slurrying according to category classification
Scattered sieving, to go the removal of impurity；Then carry out composition detection to draw component difference data, be easy to the composition tune of ceramic feed back
It is made into consistent with corresponding finished product base material formulation, the corresponding finished product base material formulation can be same category finished product base material formulation
In any one；Finally, deployed ceramic feed back is spray dried to graininess, is incorporated into finished product base-material and carries out again
Follow-up Ceramic Production, can need that ceramic tile, bathtub, toilet seat etc. is made according to production.The powder classification is reclaimed again
The method utilized avoids the waste of powder, and the powder reuse ratio collected by dedusting reaches more than 90%, reduces production cost.
Preferably, in the step D, plastic mud material is contained in the raw material added during adjustment toward ceramic feed back.Add plasticity
The particle that pug can be made subsequent step E mist projection granulatings has higher intensity, and rammed ceramic body intensity is high, causes
Close property is good.Meanwhile, the tiny ceramic powder of particle can more preferably be reunited using plastic mud material, make the ceramics system after sintering
The constriction coefficient of product is stable in controlled range.
Preferably, the step E also includes prefabrication detection：
Step E1, the ceramic feed back after spray drying is incorporated into finished product base-material made from step A, so as to be made prefabricated
Product base-material, the incorporation of the ceramic feed back is 5%~12% by mass percentage；
Step E2, is pressed into adobe by the prefabrication base-material in step E1 and is burnt till, and preformed bricks are made；
Step E3, detects the property indices of the preformed bricks, if all properties index of the preformed bricks all reaches
Production requirement can then carry out the batch production of ceramic；If the preformed bricks have one or more of performance indications to be not up to production
It is required that then adjusting the incorporation of the ceramic feed back, newly formed preformed bricks of laying equal stress on carry out detection untill up to standard.
Due to the tail gas that the ceramic feed back that dedusting is collected into is produced from spray drying, the ceramic feed back particle being collected into
D50 is 4.84 μm, and the D50 of the ceramic feed back particle after ball milling is 4.29 μm, and the D50 of finished product base granule is 4.96 μm, institute
State ceramic feed back to compare with finished product base-material, particle is comparatively fine.D50 is commonly used to represent the particle mean size of powder, i.e., one sample
Cumulative particle sizes percentile reach particle diameter corresponding when 50%, its physical significance is that particle diameter is accounted for more than its particle
50%, also account for 50%, D50 less than its particle and be also meso-position radius or median particle diameter.If so directly to the pottery after spray drying
Porcelain feed back carries out ball milling, powder processed and used, then the percent of firing shrinkage of the ceramic burnt out is big, easily becomes when burning till
Shape.
Therefore, ceramic feed back need to be incorporated into finished product base-material and used, and pass through before batch production the prefabrication
Detection, determines the optimal mixing amount of the ceramic feed back, it is to avoid incorporation is improper and influences the quality of production of ceramic.It is described
The incorporation of the ceramic feed back of method control of powder classification recycling is 5%~12% by mass percentage, is both fully returned
Receive using ceramic feed back, avoid causing the overall percent of firing shrinkage of powder excessive because ceramic feed back incorporation is excessive again, according to
The incorporation of the ceramic feed back of firing feature regulation of variety classes ceramic powder, until all properties index of the preformed bricks is all
Reach that production requirement can just carry out the batch production of ceramic, improve the validity recycled.The performance indications may include
Water absorption rate, rupture strength, flatness, thermal shock resistance and hysteresis set situation.
Preferably, the step B is specially：
Step B1, according to mass percent：Ceramic feed back 64%~67%, water 33%~36% is weighed same category of
Ceramic feed back and water；
Step B2, the water that the step B1 is weighed is added toward slurrying pond 1；Then according to mass percent：Sodium tripolyphosphate
0.04%~0.06%, water 99.94%~99.96% adds sodium tripolyphosphate toward slurrying pond 1 and stirred；
Step B3, adds ceramic feed back that the step B1 weighs toward slurrying pond 1 and stirs, ceramic slurry is made.
Slurrying time control potting porcelain feed back 64%~67%, preferably 65%；Water 33%~36%, preferably 35%；So as to
Both avoided ceramic slurry water content very few and caused ceramic slurry feeding-up, poor fluidity is unfavorable for follow-up spray drying, keeps away again
Exempting from ceramic slurry water content excessively causes subsequent spray drying time long, increases energy consumption.The sodium tripolyphosphate, which is played, to be subtracted
The effect of aqua, water consumption needed for both having reduced slurrying, prevents ceramic slurry feeding-up again, improves the mobility of ceramic slurry.
Preferably, the step C is specially：
Step C1, is added suitable quantity of water toward ceramic slurry made from step B, is reached with the flow velocity for adjusting ceramic slurry：100ml
Volt cup delivery time 35s~45s；
Step C2, is transported to dispersion cylinder 2 by the ceramic slurry after being adjusted through step C1 and is disperseed；
Step C3, the ceramic slurry after disperseing, which is transported to rotate through, crosses 100 eye mesh screens in cribellum 3.
The flow velocity of adjustment ceramic slurry reaches before scattered：100ml volts of cup delivery time 35s~45s, so that flow velocity is suitable
In, disperse and sieve more abundant；Flow velocity is too small, causes that scattered screening efficiency is low, and flow velocity is excessive, makes jitter time short, point
Dissipate insufficient.The method of the powder classification recycling is disperseed to ceramic slurry, further dissolves ceramic particle
Yu Shuizhong is simultaneously well mixed, it is to avoid caking；Ceramic slurry is sieved after scattered, the homogeneity of ceramic slurry has both been improved, again
It can remove the impurity in ceramic slurry, it is to avoid influence of the impurity to follow-up composition detection accuracy.
Preferably, the step C also includes：Step C4, is carried out to the ceramic slurry after sieving except iron processing.To ceramic slurry
Material carries out removing iron, can further go the removal of impurity, improves the follow-up composition detection degree of accuracy.
Preferably, in the step A, the color according to dried chemical composition and after burning till divides ceramic powder
Into polishing without toner material, the light powder of polishing, it is modelled after an antique without toner material, be of little use powder and dark powder；
For powder and the dark powder of being of little use, collected ceramic feed back directly squeezes into mud cake；
For polishing no toner material, polishing light powder and modelled after an antique without toner material, collected ceramic feed back is returned
Receive and recycle, that is, carry out the step B to step E processing.
By classification, it is prevented effectively from because the difference of composition and color causes the ceramic strength fluctuation burnt out greatly, no
Attractive in appearance the problems such as.Due to the ceramic feed back negligible amounts being of little use collected by both powder and dark powder, it is impossible to change again
Powder processed is starched, therefore it is directly squeezed into mud cake and sells or carry out landfill disposal.And polish without toner material, the light powder of polishing and
Modelled after an antique is conventional powder without toner material, and collected ceramic feed back quantity is larger, can slurrying powder again, effectively reduce powder
Loss.
Preferably, the recovery system of the method for described powder classification recycling, as shown in figure 1, being from upstream to down
Trip includes ball milling unit 4, spray drying unit 5, bag-type dust unit 6, recovery filler bin group 7, slurrying pond 1, dispersion cylinder successively
2nd, cribellum 3 and tramp iron separator 8 were rotated；
The ball milling unit 4 includes many table grinders, and the spray drying unit 5 includes multiple spray drying units, institute
Stating bag-type dust unit 6 includes multiple sack cleaners 61, and the recovery filler bin group 7 includes multiple recovery filler bins；
As shown in Fig. 2 multiple spray dryers 51 in the same spray drying unit connect same described
Sack cleaner 61.
The recovery system is spray-dried by classifying to ceramic powder and classification is reclaimed, it is to avoid collected by drying, dedusting
The problem of ceramic feed back chemical composition and powder color have differences big, effectively reduces powder loss, reduces raw material and uses
Quantity and discarded object yield.During production, ceramic powder is assigned to corresponding ball mill according to classification and carries out ball milling, then presses again
Corresponding spray drying unit is assigned to according to classification to be spray-dried, and the ceramic feed back that each sack cleaner 61 is collected into
Corresponding recovery filler bin is assigned to according to classification to be deposited, so as to complete the classification of ceramic feed back.And ceramic feed back is again
Using then by slurrying pond 1, dispersion cylinder 2, rotated cribellum 3 and tramp iron separator 8 is completed, same category of ceramic being transported to of feed back
Stock tank 1 carries out slurrying, is then delivered to dispersion cylinder 2 and is disperseed, and is then transported to and rotated cribellum 3 and sieved, finally defeated
Tramp iron separator 8 is sent to carry out removing iron.Except the ceramic slurry after iron by composition detection and allocate to and corresponding finished product base material formulation
After consistent, then it be transported to and be spray-dried for handling the spray drying unit of correspondence finished product base-material, finally mixes pari passu
Enter into finished product base-material, so as to complete the recycling of ceramic feed back.Due to multiple sprays in the same spray drying unit
Mist drying machine 51 is used to handle same category of ceramic powder, therefore can connect the same progress of the sack cleaner 61 dedusting
With the collection of ceramic feed back, equipment investment cost is saved.
Preferably, the slurrying pond 1 and the inside of dispersion cylinder 2 are equipped with agitator；The charging aperture of the dispersion cylinder 2 is set
In the bottom of the dispersion cylinder 2, the discharging opening of the dispersion cylinder 2 is arranged at the top of the dispersion cylinder 2；It is described to rotate cribellum
3 screen cloth is 100 eye mesh screens.
The slurrying pond 1 and the inside of dispersion cylinder 2 are equipped with agitator, for the dissolving of ceramic feed back and well mixed.
The slurrying pond 1 can use the agitator provided with 4 paddle groups, and the paddle of each paddle group is arranged at a stirring
On axle, two neighboring paddle group is mutually perpendicular to, and each paddle group installs 4 paddles in the perpendicular direction, and increase is stirred
Active area is mixed, mixing quality is improved.The motor of high-speed rotation, the power transmission shaft of motor can be set in the agitator of the dispersion cylinder 2
Helical form flabellum is connected, scattered intensity is improved, it is to avoid powder particles are deposited on the bottom of dispersion cylinder 2.The dispersion cylinder 2 is entered under being
On go out, ceramic slurry enters dispersion cylinder 2 from the bottom of dispersion cylinder 2, and is flowed out from the top of dispersion cylinder 2, so that in identical flow velocity
The decentralized processing time of lower extension ceramic slurry, it is ensured that ceramic slurry is scattered abundant.The screen cloth for rotating cribellum 3 is 100
Eye mesh screen, makes ceramic slurry after sieving more mix homogeneous.
Embodiment two,
The quality percentage composition (%) of ceramic powder used in the present embodiment see the table below：
The quality percentage composition of upper table ceramic powder is less than 100%, and its surplus is conventional fossil impurity.Ablation is mainly
Organic compound combustion amount and carbonate decomposition amount in sintering process.Above-mentioned ultrawhite formula powder, secondary white formula powder and Pu Bai are matched somebody with somebody
Square powder belongs to polishing without toner material.
Step one, above-mentioned ultrawhite formula powder, secondary white formula powder and Pu Bai formula powder carry out ball milling respectively, are made super
White formula slurry, secondary white formula slurry and Pu Bai formula slurry.
Step 2, is formulated slurry, secondary white formula slurry and Pu Bai formula slurry by ultrawhite and is delivered to the first spray dryer
Group is spray-dried, and is then sent to the first sack cleaner being connected with the first spray drying unit and is carried out dedusting, is made
Ultrawhite finished product base-material, secondary white finished product base-material and Pu Bai finished product base-material.
Step 3, collects the ceramic feed back of first sack cleaner, and the ceramic feed back being collected into is stored in into the
One reclaims filler bin.
Step 4, adds 90 tons of water and 0.036 ton of sodium tripolyphosphate, and make sodium tripolyphosphate by stirring toward slurrying pond 1
It is completely dissolved into water.
Step 5, reclaims filler bin described first and extracts 180 tons of ceramic feed backs, open the mixer in the slurrying pond 1；
Then, flow is poured into by the ceramic feed back of electronic scale control, the ceramic feed back speed is homogeneously added into the slurrying pond
1, it is stirred continuously up to the ceramic feed back is completely dissolved into water, ceramic slurry is made.
Step 6, suitable quantity of water is added toward ceramic slurry, and the flow velocity of adjustment ceramic slurry reaches：During 100ml volts of cup outflows
Between 42s；Then, the ceramic slurry after adjustment is delivered into dispersion cylinder 2 to be disperseed.
Step 7, the ceramic slurry after disperseing, which is transported to rotate through, crosses 100 eye mesh screens in cribellum 3, after then sieving
Ceramic slurry be delivered to tramp iron separator 8 carry out except iron processing.
Step 8, detection remove iron after ceramic slurry carry out composition detection, and by composition detection result and ultrawhite be formulated into
Row contrast draws component difference data, and the composition of ceramic slurry is adjusted according to the component difference data, makes ceramic slurry
The composition of material is consistent with ultrawhite formula.
Step 9, to being handled through step 8 after ceramic slurry be spray-dried, then weigh spray drying after pottery
8 kilograms of porcelain feed back and 92 kilograms of ultrawhite finished product base-material is weighed, that is, 8% incorporation by mass percentage of the ceramic feed back after being spray-dried
Into ultrawhite finished product base-material, so that prefabrication base-material is made.
Step 10, is made adobe by prefabrication base-material and is burnt till, and a collection of preformed bricks are made；Then detect described prefabricated
Water absorption rate, rupture strength, flatness, thermal shock resistance and the hysteresis set situation of brick, testing result are preformed bricks surfacing, are inhaled
Water rate is 0.01~0.05, and rupture strength is 39.6MPa, and 160 degree to 25 degree of thermal shock resistance does not split for 10 times, delayed change after 48 hours
Shape is less than 0.05mm, and the performance of the preformed bricks reaches the requirement of national product standard, can carry out the batch production of ceramic.
Embodiment three,
The quality percentage composition (%) of ceramic powder used in the present embodiment see the table below：
The quality percentage composition of upper table ceramic powder is less than 100%, and its surplus is conventional fossil impurity.Ablation is mainly
Organic compound combustion amount and carbonate decomposition amount in sintering process.The colorant is the colorant of same color.Above-mentioned color one is matched somebody with somebody
Square powder, the formula powder of color two and the formula powder of color three belong to polish light powder.
Step one, the above-mentioned formula of color one powder, the formula powder of color two and the formula powder of color three carry out ball milling respectively, and color is made
One formula slurry, the formula slurry of color two and the formula slurry of color three.
Step 2, color one is formulated slurry, color two are formulated slurry and color three is formulated slurry and is delivered to the second spray dryer
Group is spray-dried, and is then sent to the second sack cleaner being connected with the second spray drying unit and is carried out dedusting, is made
The finished product base-material of color one, the finished product base-material of color two and the finished product base-material of color three.
Step 3, collects the ceramic feed back of second sack cleaner, and the ceramic feed back being collected into is stored in into the
Two reclaim filler bin.
Step 4, adds 66 tons of water and 0.0265 ton of sodium tripolyphosphate, and make sodium tripolyphosphate by stirring toward slurrying pond 1
It is completely dissolved into water.
Step 5, reclaims filler bin described second and extracts 130 tons of ceramic feed backs, open the mixer in the slurrying pond 1；
Then, flow is poured into by the ceramic feed back of electronic scale control, the ceramic feed back speed is homogeneously added into the slurrying pond
1, it is stirred continuously up to the ceramic feed back is completely dissolved into water, ceramic slurry is made.
Step 6, suitable quantity of water is added toward ceramic slurry, and the flow velocity of adjustment ceramic slurry reaches：During 100ml volts of cup outflows
Between 36s；Then, the ceramic slurry after adjustment is delivered into dispersion cylinder 2 to be disperseed.
Step 7, the ceramic slurry after disperseing, which is transported to rotate through, crosses 100 eye mesh screens in cribellum 3, after then sieving
Ceramic slurry be delivered to tramp iron separator 8 carry out except iron processing.
Step 8, detection remove iron after ceramic slurry carry out composition detection, and by composition detection result and color one be formulated into
Row contrast draws component difference data, and the composition of ceramic slurry is adjusted according to the component difference data, makes ceramic slurry
The composition of material is formulated consistent with color one.
Step 9, to being handled through step 8 after ceramic slurry be spray-dried, then weigh spray drying after pottery
5 kilograms of porcelain feed back and 95 kilograms of one finished product base-material of color is weighed, that is, 5% incorporation by mass percentage of the ceramic feed back after being spray-dried
Into the finished product base-material of color one, so that prefabrication base-material is made.
Step 10, is made adobe by prefabrication base-material and is burnt till, and a collection of preformed bricks are made；Then detect described prefabricated
Water absorption rate, rupture strength, flatness, thermal shock resistance and the hysteresis set situation of brick, testing result are preformed bricks surfacing, are inhaled
Water rate is 0.01~0.04, and rupture strength is 38.8MPa, and 160 degree to 25 degree of thermal shock resistance does not split for 10 times, delayed change after 48 hours
Shape is less than 0.05mm, and the performance of the preformed bricks reaches the requirement of national product standard, can carry out the batch production of ceramic.
Example IV,
The quality percentage composition (%) of ceramic powder used in the present embodiment see the table below：
| SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | Ablation | |
| Formula modelled after an antique | 66.98 | 20.63 | 0.44 | 0.15 | 0.18 | 0.87 | 1.91 | 3.47 | 5.42 |
The other compositions of upper table ceramic powder are conventional fossil impurity.The ablation mainly organic compound combustion in sintering process
Amount and carbonate decomposition amount.Above-mentioned formula powder modelled after an antique belongs to modelled after an antique without toner material.
Step one, above-mentioned formula powder modelled after an antique carries out ball milling, and formula slurry modelled after an antique is made.
Step 2, by it is modelled after an antique formula slurry be delivered to the 3rd spray drying unit be spray-dried, be then sent to and
3rd sack cleaner of the 3rd spray drying unit connection carries out dedusting, and finished product base-material modelled after an antique is made.
Step 3, collects the ceramic feed back of the 3rd sack cleaner, and the ceramic feed back being collected into is stored in into the
Three reclaim filler bin.
Step 4, adds 90 tons of water and 0.036 ton of sodium tripolyphosphate, and make sodium tripolyphosphate by stirring toward slurrying pond 1
It is completely dissolved into water.
Step 5, reclaims filler bin the described 3rd and extracts 180 tons of ceramic feed backs, open the mixer in the slurrying pond 1；
Then, flow is poured into by the ceramic feed back of electronic scale control, the ceramic feed back speed is homogeneously added into the slurrying pond
1, it is stirred continuously up to the ceramic feed back is completely dissolved into water, ceramic slurry is made.
Step 6, suitable quantity of water is added toward ceramic slurry, and the flow velocity of adjustment ceramic slurry reaches：During 100ml volts of cup outflows
Between 45s；Then, the ceramic slurry after adjustment is delivered into dispersion cylinder 2 to be disperseed.
Step 7, the ceramic slurry after disperseing, which is transported to rotate through, crosses 100 eye mesh screens in cribellum 3, after then sieving
Ceramic slurry be delivered to tramp iron separator 8 carry out except iron processing.
Step 8, detection remove iron after ceramic slurry carry out composition detection, and by composition detection result and it is modelled after an antique be formulated into
Row contrast draws component difference data, and the composition of ceramic slurry is adjusted according to the component difference data, makes ceramic slurry
The composition of material is consistent with formula modelled after an antique.
Step 9, to being handled through step 8 after ceramic slurry be spray-dried, then weigh spray drying after pottery
12 kilograms of porcelain feed back and 88 kilograms of finished product base-material modelled after an antique is weighed, that is, the ceramic feed back after being spray-dried 12% is mixed by mass percentage
Enter into finished product base-material modelled after an antique, so that prefabrication base-material is made.
Step 10, is made adobe by prefabrication base-material and is burnt till, and a collection of preformed bricks are made；Then detect described prefabricated
Water absorption rate, rupture strength, flatness, thermal shock resistance and the hysteresis set situation of brick, testing result are preformed bricks surfacing, are inhaled
Water rate is 0.01~0.04, and rupture strength is 41.8MPa, and 160 degree to 25 degree of thermal shock resistance does not split for 10 times, delayed change after 48 hours
Shape is less than 0.05mm, and the performance of the preformed bricks reaches the requirement of national product standard, can carry out the batch production of ceramic.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel, which would not require any inventive effort, can associate other embodiments of the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (9)
- A kind of method of recycling 1. powder is classified, it is characterised in that comprise the following steps：Step A, classifies according to dried chemical composition with the color after burning till to ceramic powder, different classes of ceramics Powder classification carries out finished product base-material after spray drying and dedusting, and by the ceramic powder being collected into after dedusting according to classification Store classifiedly, it is ceramic feed back to define the ceramic powder being collected into after dedusting；Step B, extracts same category of ceramic feed back and slurry is made；Step C, will be made the ceramic feed back after slurry and carries out scattered sieving in step B；Step D, to being handled through step C after ceramic feed back carry out composition detection, and by composition detection result and corresponding finished product Base material formulation carries out contrast and draws component difference data, and the composition of ceramic feed back is adjusted according to the component difference data It is whole, make the composition of ceramic feed back consistent with corresponding finished product base material formulation；Step E, is spray-dried to the ceramic feed back after being handled through step D, and the ceramic feed back after spray drying is mixed Into finished product base-material made from step A, ceramic is produced.
- The method of recycling 2. powder according to claim 1 is classified, it is characterised in that：In the step D, adjustment When the raw material that is added toward ceramic feed back in contain plastic mud material.
- The method of recycling 3. powder according to claim 1 is classified, it is characterised in that the step E also includes Prefabrication is detected：Step E1, the ceramic feed back after spray drying is incorporated into finished product base-material made from step A, so that prefabrication base is made Material, the incorporation of the ceramic feed back is 5%~12% by mass percentage；Step E2, is pressed into adobe by the prefabrication base-material in step E1 and is burnt till, and preformed bricks are made；Step E3, detects the property indices of the preformed bricks, if all properties index of the preformed bricks all reaches production It is required that can then carry out the batch production of ceramic；If the preformed bricks have the not up to production requirement of one or more of performance indications The incorporation of the ceramic feed back is then adjusted, newly formed preformed bricks of laying equal stress on carry out detection untill up to standard.
- The method of recycling 4. powder according to claim 1 is classified, it is characterised in that the step B is specially：Step B1, according to mass percent：Ceramic feed back 64%~67%, water 33%~36% weighs same category of ceramics Feed back and water；Step B2, the water that the step B1 is weighed is added toward slurrying pond；Then according to mass percent：Sodium tripolyphosphate 0.04% ~0.06%, water 99.94%~99.96% adds sodium tripolyphosphate toward slurrying pond and stirred；Step B3, adds ceramic feed back that the step B1 weighs toward slurrying pond and stirs, ceramic slurry is made.
- The method of recycling 5. powder according to claim 4 is classified, it is characterised in that the step C is specially：Step C1, is added suitable quantity of water toward ceramic slurry made from step B, is reached with the flow velocity for adjusting ceramic slurry：100ml volts Cup delivery time 35s~45s；Step C2, is transported to dispersion cylinder by the ceramic slurry after being adjusted through step C1 and is disperseed；Step C3, the ceramic slurry after disperseing, which is transported to rotate through, crosses 100 eye mesh screens in cribellum.
- The method of recycling 6. powder according to claim 5 is classified, it is characterised in that the step C also includes：Step C4, is carried out to the ceramic slurry after sieving except iron processing.
- The method of recycling 7. powder according to claim 1 is classified, it is characterised in that：In the step A, according to Dried chemical composition and the color after burning till, polishing is divided into without toner material, the light powder of polishing, modelled after an antique by ceramic powder Without toner material, be of little use powder and dark powder；For powder and the dark powder of being of little use, collected ceramic feed back directly squeezes into mud cake；For polishing no toner material, polishing light powder and modelled after an antique without toner material, collected ceramic feed back is reclaimed again Utilize, that is, carry out the step B to step E processing.
- 8. the recovery system of the method for powder classification recycling according to claim 6, it is characterised in that：From upstream Include successively to downstream ball milling unit, spray drying unit, bag-type dust unit, reclaim filler bin group, slurrying pond, dispersion cylinder, Rotated cribellum and tramp iron separator；The ball milling unit includes many table grinders, and the spray drying unit includes multiple spray drying units, the cloth bag Dust removing units include multiple sack cleaners, and the recovery filler bin group includes multiple recovery filler bins；Multiple spray dryers in the same spray drying unit connect the same sack cleaner.
- 9. the recovery system of the method for powder classification recycling according to claim 8, it is characterised in that：Describedization The inside of stock tank and dispersion cylinder is equipped with agitator；The charging aperture of the dispersion cylinder is arranged at the bottom of the dispersion cylinder, and the discharging opening of the dispersion cylinder is arranged at described disperse The top of cylinder；The screen cloth for rotating cribellum is 100 eye mesh screens.
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Address after: 528138 fan Lake Industrial Park, Leping Town, Sanshui District, Foshan, Guangdong Applicant after: Foshan Oushennuo Ceramic Co., Ltd. Address before: 528138 fan Lake Industrial Park, Leping Town, Sanshui District, Foshan, Guangdong Applicant before: Foshan Oceano Ceramic Co., Ltd. |
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Effective date of registration: 20201202 Address after: 543300 Zhonghe Ceramic Industrial Park C District, East Village, Tengzhou Town, Wuzhou City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI OUSHENNUO CERAMIC Co.,Ltd. Address before: 528138 fan Lake Industrial Zone, Leping Town, Sanshui District, Guangdong, Foshan Patentee before: FOSHAN OCEANO CERAMICS Co.,Ltd. |