CN106495730A - A kind of production technology of winding ceramic filter - Google Patents

A kind of production technology of winding ceramic filter Download PDF

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Publication number
CN106495730A
CN106495730A CN201610906173.9A CN201610906173A CN106495730A CN 106495730 A CN106495730 A CN 106495730A CN 201610906173 A CN201610906173 A CN 201610906173A CN 106495730 A CN106495730 A CN 106495730A
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China
Prior art keywords
winding
ceramic
ceramic filter
extruder
filter
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CN201610906173.9A
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冯斌
包立新
吴泽霖
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Foshan Jin Gang Technology Co ltd
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Foshan Jingang Enterprise Group Co Ltd
FOSHAN JINGANG SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN201610906173.9A priority Critical patent/CN106495730A/en
Publication of CN106495730A publication Critical patent/CN106495730A/en
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Abstract

The invention discloses a kind of production technology of winding ceramic filter, including：The uniform mixing granulation of primary raw material needed for winding ceramic filter will be prepared, obtain granulation material；Granulation material is extruded on extruder wire material, the extruded velocity of wire material is 0.2 m/min～3 ms/min；Wire material forms multiple ceramic rings on a moving belt, and ceramic ring overlaps and is interleaved together forming the winding ceramic body with multiple structure；Located at the lower section of the extruder mouth of the extruder, the transmission speed of conveyer belt is 5 ms/min～25 ms/min to conveyer belt, and the extruder mouth of extruder is 10mm～1000mm with the distance of conveyer belt；Winding ceramic body is dried process；Dried winding ceramic body is sintered, obtains winding ceramic filter.Present invention winding ceramic filter has that intensity is high, porosity is big, filtering accuracy is high concurrently, lighter in weight, the advantages of do not introduce impurity.

Description

A kind of production technology of winding ceramic filter
Technical field
The present invention relates to ceramic field, more particularly to a kind of production technology of winding ceramic filter.
Background technology
In Foundry Production, as caused by the casting flaws such as non-metallic inclusion, casting wasted product rate generally up to waste product is total Several 50%～60%.Inclusion defect not only seriously reduces foundry goods mechanical performance, also its processing characteristics and outward appearance is produced harmful Affect.Liquid casting alloy is purified, wherein various non-metallic inclusions are reduced or eliminated, the non-of high quality casting is undoubtedly obtained Often important technical measures.The purpose for purifying liquid casting alloy can be effectively realized using filtering technique.
At present, molten metal filtering technique has three generation products, 1st generation product to weave drainage screen；2nd generation product is straight Hole ceramic filter；3rd generation product ceramic foam filter.The enterprise of casting ceramic filter production is engaged in, such as beautiful The Hi-Tech companies of state, Consolidated Aluminum companies, Selee companies, ASK, the Foseco companies of Britain, The Lanik companies of Czech, the Drache companies of Germany, Foshan Buddha's warrior attendant of China, Jinan holy well, non-spy, Fu Ji, peaceful letter and section Moral, based on the second filial generation and third generation product.
Braiding filter screen filtration effect is poor, and lasting use time is short, is unfavorable for long-term automated job.Straight-bore ceramic mistake Filter intensity is high, does not introduce impurity, but its filter effect is not good, and product is heavier in filter process.And foamed ceramics mistake Although filter good filtration effect, its low intensity are easily damaged, filter process is often scaling-off, introduces impurity.
Content of the invention
The technical problem to be solved is, there is provided a kind of production technology of winding ceramic filter, which produces The winding ceramic filter for obtaining has that intensity is high, porosity is big, filtering accuracy is high concurrently, lighter in weight, the advantages of do not introduce impurity.
The technical problem to be solved is, there is provided a kind of production technology of winding ceramic filter, technique letter Single, production process is without mould, carrier-free.
For reaching above-mentioned technique effect, the invention provides a kind of production technology of winding ceramic filter, including：
The uniform mixing granulation of primary raw material needed for winding ceramic filter will be prepared, obtain granulation material；
The granulation material is extruded into wire material on extruder, the extruded velocity of wire material is 0.2 m/min～3 meters/ Minute；
Wire material forms multiple ceramic rings on a moving belt, and ceramic ring overlaps and is interleaved together being formed with multiple structure Winding ceramic body；Located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 5 to the conveyer belt M/min～25 ms/min, the extruder mouth of the extruder is 10mm～1000mm with the distance of conveyer belt；
The winding ceramic body is dried process；
Dried winding ceramic body is sintered, obtains winding ceramic filter.
Used as the improvement of such scheme, the extruded velocity of the wire material is 0.5 m/min～2.5 ms/min；
The transmission speed of the conveyer belt is 10 ms/min～15 ms/min；
The extruder mouth of the extruder is 50mm～500mm with the distance of conveyer belt.
Used as the improvement of such scheme, the winding ceramic body is made up of multiple identical ceramic rings, the pottery of same layer Ceramic ring is equidistantly uniformly distributed, and the ceramic ring of adjacent layer is interspersed.
As the improvement of such scheme, the wire material a diameter ofThe ceramic ring straight Footpath isThe thickness of the ceramic ring is 1.0～3.0mm.
Used as the improvement of such scheme, the winding ceramic filter is circle, ellipse, rectangle, regular polygon or Pedicellus et Pericarpium Trapae Shape；
The porosity of the winding ceramic filter is 60～80%；
The size of the winding ceramic filter is 20～600mm；
The thickness of the winding ceramic filter is 5～50mm.
Used as the improvement of such scheme, the baking temperature of the dried is 50～200 DEG C；
The sintering temperature of the sintering processes is 1200～1450 DEG C.
Used as the improvement of such scheme, the primary raw material needed for the preparation winding ceramic filter includes：
Used as the improvement of such scheme, the primary raw material needed for the preparation winding ceramic filter includes：
Used as the improvement of such scheme, the primary raw material needed for the preparation winding ceramic filter includes：
Used as the improvement of such scheme, the binding agent includes low temperature bonding agent and high-temperature agglomerant；The low temperature bonding Agent is carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol, the one kind in modified starch or combination；The high temperature glues Knot agent is Ludox, the one kind in Alumina gel or combination；
The plasticiser is glycerol.
Implement the present invention to have the advantages that：
The present invention is by using without mould, DNAcarrier free extrusion filament winding process, obtaining and possessing three-D pore structure, porosity Reach 60～80%, strength at normal temperature >=2.5Mpa, the high-heat resistance shock resistant of 1200 DEG C of remaining air cooling rupture strength >=1.2MPa Can winding ceramic filter, manufacture course of products environmentally safe, it is high, no that the winding ceramic filter has had intensity concurrently Scaling-off, filtering accuracy is high, lighter in weight, big porosity the advantages of, not only can effective filtering molten metal on a large scale, reduce Impurity content, and can prevent motlten metal from producing vortex, impact is relaxed, acquisition quality is homogeneous, foundry goods of good performance.
Description of the drawings
Fig. 1 is a kind of flow chart of the production technology of winding ceramic filter of the present invention；
Fig. 2 is a kind of schematic diagram of winding ceramic filter of the present invention；
Fig. 3 is the front view of the winding ceramic filter shown in Fig. 2.
Fig. 4 is the Section A-A shown in Fig. 3.
Fig. 5 is the schematic diagram of the ceramic ring shown in Fig. 2.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing Step ground is described in detail.
As shown in figure 1, the invention provides a kind of winding ceramic filter production technology, including：
S101, the uniform mixing granulation of primary raw material needed for winding ceramic filter will be prepared, obtain granulation material；
Specifically, step S101 includes：
1st, weigh and prepare the primary raw material wound needed for ceramic filter；
2nd, the primary raw material prepared needed for winding ceramic filter is uniformly mixed into compound；
3rd, water is added mixture into, is stirred by electric blender, form pug, and little by old for pug 20～30 When；
Preferably, add mixture into water to stir in electric blender 30～60 minutes, obtain uniform pug, and by mud Expect old 24 hours, the addition of water is the 5%～25% of compound.
4th, the pug after will be old carries out pugging pelletize by vacuum granulator, and after pelletize, pug is old 20～30 hours.
Preferably, the pug after will be old carries out pugging pelletize 2～5 times by vacuum granulator, and pug moisture Control exists 12～15%, after pelletize, pug is old 24 hours.
The primary raw material prepared needed for winding ceramic filter includes carbonization silicon systems, alumina series and aluminium oxide-violet Cordierite system, difference are as follows：
First, the primary raw material (carbonization silicon systems) prepared needed for winding ceramic filter includes：
Preferably, the primary raw material (carbonization silicon systems) prepared needed for winding ceramic filter includes：
Above-mentioned formula is in parts by weight.
Further, SiC, Al2O3、SiO2Preferentially from the raw material of certain particle diameter, SiC is from D50=0.01～100 μm SiC, Al2O3Al from D50=0.01～100 μm2O3, SiO2SiO from D50=0.01～100 μm2.The present invention needs By SiC, Al2O3、SiO2Size controlling at 0.01～100 μm, by control raw material grain composition so that finished product burns till receipts Reduce, size is easily controlled.Described SiC, Al2O3、SiO2If particle diameter be more than 100 μm, it is not easy to form twining for continuous flexible Wrapping wire.Described SiC, Al2O3、SiO2If particle diameter be less than 0.01 μm, with high costs.
More preferably, SiC, Al of the SiC from D50=0.01～50 μm2O3Al from D50=0.01～50 μm2O3, SiO2 SiO from D50=0.01～50 μm2.
It should be noted that D50：Refer to that the cumulative particle sizes percentile of a sample reaches corresponding grain when 50% Footpath.Its physical significance refers to that particle diameter accounts for 50% more than its granule, also accounts for 50%, D50 less than its granule and is also intermediate value grain Footpath or meso-position radius.D50 is conventionally used to indicate the particle mean size of powder body.
The binding agent includes low temperature bonding agent and high-temperature agglomerant；The low temperature bonding agent is carboxymethyl cellulose, hydroxyl One kind or combination in propyl methocel, polyvinyl alcohol, modified starch；The high-temperature agglomerant is Ludox, Alumina gel In one kind or combination；The plasticiser is glycerol.
Preferably, the low temperature bonding agent is hydroxypropyl methyl cellulose, and high-temperature agglomerant is Alumina gel.
Low temperature bonding agent can make semi-finished product have higher-strength after drying, and be readily transported and process.High-temperature agglomerant such as silicon Colloidal sol or Alumina gel not only make semi-finished product that there is its composition nanometer in higher-strength, and high-temperature sintering process after middle cold drying The silicon dioxide of level or alumina filled gap, can also generate thermal shock resistance with the aluminium oxide in system or silicon dioxide superior Mullite phase.
2nd, the primary raw material (alumina series) prepared needed for winding ceramic filter includes：
Preferably, the primary raw material (alumina series) prepared needed for winding ceramic filter includes：
Above-mentioned formula is in parts by weight.
Further, TiO2、Al2O3、SiO2Preferentially from the raw material of certain particle diameter, TiO2From D50=0.01～100 μm TiO2, Al2O3Al from D50=0.01～100 μm2O3, SiO2SiO from D50=0.01～100 μm2.The present invention needs By TiO2、Al2O3、SiO2Size controlling at 0.01～100 μm, by control raw material grain composition so that finished product burns till receipts Reduce, size is easily controlled.The TiO2、Al2O3、SiO2If particle diameter be more than 100 μm, it is not easy to form continuous flexible Winding silk.The TiO2、Al2O3、SiO2If particle diameter be less than 0.01 μm, with high costs.
More preferably, TiO2TiO from D50=0.01～50 μm2, Al2O3Al from D50=0.01～50 μm2O3, SiO2SiO from D50=0.01～50 μm2.
The binding agent includes low temperature bonding agent and high-temperature agglomerant；The low temperature bonding agent is carboxymethyl cellulose, hydroxyl One kind or combination in propyl methocel, polyvinyl alcohol, modified starch；The high-temperature agglomerant is Ludox, Alumina gel In one kind or combination；The plasticiser is glycerol.
Preferably, the low temperature bonding agent is hydroxypropyl methyl cellulose, and high-temperature agglomerant is Alumina gel.
Low temperature bonding agent can make semi-finished product have higher-strength after drying, and be readily transported and process.High-temperature agglomerant such as silicon Colloidal sol or Alumina gel not only make semi-finished product that there is its composition nanometer in higher-strength, and high-temperature sintering process after middle cold drying The silicon dioxide of level or alumina filled gap, can also generate thermal shock resistance with the aluminium oxide in system or silicon dioxide superior Mullite phase.
3rd, the primary raw material (aluminium oxide-cordierite system) prepared needed for winding ceramic filter includes：
Preferably, the primary raw material (aluminium oxide-cordierite system) prepared needed for winding ceramic filter includes：
Above-mentioned formula is in parts by weight.
Further, Al2O3、SiO2, cordierite, Kaolin, potassium feldspar, Talcum preferentially from certain particle diameter raw material, Al2O3 Al from D50=0.01～100 μm2O3, SiO2SiO from D50=0.01～100 μm2, cordierite selects D50=0.01 ～100 μm of cordierite, Kaolin select the Kaolin of D50=0.01～100 μm, potassium feldspar to select D50=0.01～100 μm Potassium feldspar, Talcum from D50=0.01～100 μm Talcum.The present invention is needed Al2O3、SiO2, cordierite, Kaolin, Potassium feldspar, the size controlling of Talcum at 0.01～100 μm, by control raw material grain composition so that finished product burn till contraction little, Size is easily controlled.The Al2O3、SiO2If, the particle diameter of cordierite, Kaolin, potassium feldspar, Talcum be more than 100 μm, it is not easy to Form the winding silk of continuous flexible.The Al2O3、SiO2, if the particle diameter of cordierite, Kaolin, potassium feldspar, Talcum is less than 0.01 μm, with high costs.
The binding agent includes low temperature bonding agent and high-temperature agglomerant；The low temperature bonding agent is carboxymethyl cellulose, hydroxyl One kind or combination in propyl methocel, polyvinyl alcohol, modified starch；The high-temperature agglomerant is Ludox, Alumina gel In one kind or combination；The plasticiser is glycerol.
Preferably, the low temperature bonding agent is hydroxypropyl methyl cellulose, and high-temperature agglomerant is Alumina gel.
Low temperature bonding agent can make semi-finished product have higher-strength after drying, and be readily transported and process.High-temperature agglomerant such as silicon Colloidal sol or Alumina gel not only make semi-finished product that there is its composition nanometer in higher-strength, and high-temperature sintering process after middle cold drying The silicon dioxide of level or alumina filled gap, can also generate thermal shock resistance with the aluminium oxide in system or silicon dioxide superior Mullite phase.
S102, the granulation material is extruded into wire material on extruder.
The extruded velocity of wire material is 0.2 m/min～3 ms/min；
Preferably, the extruded velocity of the wire material be 0.5 m/min～2.5 ms/min, the wire material straight Footpath is
More preferably, the extruded velocity of the wire material be 0.8 m/min～2.0 ms/min, the wire material straight Footpath is
S103, wire material form multiple ceramic rings on a moving belt, and ceramic ring is overlapped and is interleaved together, and is formed and there is multilamellar The winding ceramic body of structure.
Located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 5 ms/min to the conveyer belt Clock～25 m/min, the extruder mouth of the extruder are 10mm～1000mm with the distance of conveyer belt；Preferably, the biography The transmission speed for sending band is 10 ms/min～15 ms/min；The extruder mouth of the extruder is 50mm with the distance of conveyer belt ～500mm.More preferably, the transmission speed of the conveyer belt is 11 ms/min～14 ms/min；The extruder of the extruder Mouth is 80mm～450mm with the distance of conveyer belt.
The present invention is by controlling the extruded velocity of wire material and controlling the transmission speed of conveyer belt, it is ensured that ceramic ring is uniform Distribution is overlapped, by extruder mouth and the transmission of the extruded velocity, the transmission speed of conveyer belt and extruder of control wire material The distance of band, it is ensured that the diameter range of ceramic ring, so that ensure that filter of the present invention has good filter effect.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the winding ceramic body 10 is made up of multiple ceramic rings 1, and ceramic ring is overlapped It is staggered to form multiple structure.Multiple ceramic rings 1 can be identical, or different.
Preferably, the winding ceramic body 10 is made up of multiple identical ceramic rings 1, between 1 grade of ceramic ring of same layer Away from being uniformly distributed, diameter of the distance between the center of circle of same layer ceramic ring less than or equal to ceramic ring, the ceramic ring 1 of adjacent layer are handed over The diameter of the distance between wrong distribution, center of circle of adjacent layer ceramic ring less than ceramic ring.
More preferably, the winding ceramic body 10 is made up of multiple identical ceramic rings 1, between 1 grade of ceramic ring of same layer Away from being uniformly distributed, diameter of the distance between the center of circle of same layer ceramic ring 1 less than or equal to ceramic ring, the ceramic ring 1 of adjacent layer It is interspersed, radius of the distance between the center of circle of adjacent layer ceramic ring 1 less than or equal to ceramic ring.
The ceramic ring 1 a diameter ofThe thickness of the ceramic ring 1 is 1.0～3.0mm.It is preferred that , the ceramic ring 1 a diameter ofThe thickness of the ceramic ring 1 is 1.5～2.5mm.
S104, by described winding ceramic body be dried process；
The baking temperature of the dried is 50～200 DEG C, and drying time is 8～15 minutes, winding pottery after drying The moisture Control of semi-finished product is below 2%.The dried is preferably infrared drying, but which can also be other drying sides Formula, embodiments thereof are not limited to illustrated embodiment of the present invention.
S105, by dried winding ceramic body be sintered, obtain wind ceramic filter.
The sintering temperature of the sintering processes is 1200～1450 DEG C, and firing time is 20～23 hours.
The winding ceramic filter can be arbitrary shape, it is preferred that the winding ceramic filter is circular, oval Shape, rectangle, regular polygon or rhombus.More preferably, the winding ceramic filter is circular, rectangle or regular polygon.
The porosity of the winding ceramic filter is 60～80%；Described winding ceramic filter size be 20～ 600mm；The thickness of the winding ceramic filter is 5～50mm.Preferably, the porosity of the winding ceramic filter is 70 ～80%；The size of the winding ceramic filter is 50～500mm；Described winding ceramic filter thickness be 10～ 50mm.
Present invention winding ceramic filter and traditional ceramic foam filter, straight-bore ceramic filter are done performance inspection Survey, as a result as follows：
It should be noted that the measuring method of flux is：Will winding ceramic filter, ceramic foam filter, straight hole pottery Porcelain filter is placed in fixed model, and poured weights are 700～1100g, and viscosity is the PVA glue of 600～800 centipoises, with the second Meter is calculated the time used, and poured into a mould glue weight is filter flux divided by the time used by cast.Preferably, the PVA glue Water weight is 700～1000g, and viscosity is 650～750 centipoises.
The present invention is expanded on further with specific embodiment below
Embodiment 1
1st, carbonization silicon series prescription：
SiC powder 7kg, Al2O3Powder 1.5kg, SiO2Powder 1.5kg, Alumina gel 0.5kg, hydroxypropyl methyl cellulose 0.1kg, glycerol 0.2kg, water 1.1kg.
2nd, preparation method：First by load weighted SiC powders, Al2O3Powder, SiO2Powder, hydroxypropyl methyl cellulose are placed in Electric blender mix homogeneously, load weighted Alumina gel and water are slowly added in mixed powder, continue batch mixing 30 minutes, are obtained Uniform pug, pug moisture are 14.2%, carry out vacuum granulation 5 times after old 24 hours, by pelletize after mud bar old 24 Hour；Then wire material is extruded into vacuum-extruder plasticity, the extruded velocity of wire material is 0.2 m/min, and wire material is being passed Send and take to form multiple ceramic rings, ceramic ring overlaps and is interleaved together forming the winding ceramic body with multiple structure；Described Located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 5 ms/min to conveyer belt, the extrusion The extruder mouth of machine is 10mm with the distance of conveyer belt；Winding ceramic body passes through to cut, in 50 DEG C of dryings, the moisture control of base substrate 1.6%, dried winding ceramic body burns till under 1250 DEG C of air atmospheres system, firing time 21 hours.
3rd, the SiC winding ceramic filter proportions for burning till are 0.68g/cm3, porosity is 72%, strength at normal temperature 2.6MPa, 1200 DEG C of remaining air cooling rupture strength 1.3MPa, flux is 15g/cm3.
Embodiment 2
1st, carbonization silicon series prescription：SiC powder 6kg, Al2O3Powder 2.3kg, SiO2Powder 1.7kg, Ludox 0.5kg, gather Vinyl alcohol 0.1kg, glycerol 0.2kg, water 1.2kg.
2nd, preparation method：First by load weighted SiC powders, Al2O3Powder, SiO2Powder, polyvinyl alcohol are placed in electric stirring Machine mix homogeneously, load weighted Ludox and water are slowly added in mixed powder, continue batch mixing 45 minutes, obtain uniform mud Material, pug moisture are 14%, carry out vacuum granulation 5 times after old 24 hours, by pelletize after mud bar old 24 hours；Then use Vacuum-extruder plasticity is extruded into wire material, and the extruded velocity of wire material is 0.8 m/min, and wire material is formed on a moving belt Multiple ceramic rings, ceramic ring overlap and are interleaved together forming the winding ceramic body with multiple structure；The conveyer belt is located at The lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 10 ms/min, the extruder of the extruder Mouth is 100mm with the distance of conveyer belt；By cutting, in 100 DEG C of dryings, the moisture Control of base substrate exists winding ceramic body 1.6%, dried winding ceramic body is burnt till under 1300 DEG C of air atmospheres, firing time 22 hours.
3rd, the SiC winding ceramic filter proportions for burning till are 0.66g/cm3, porosity is 71%, and strength at normal temperature is 2.7MPa, 1200 DEG C of remaining air cooling rupture strength 1.5MPa, flux is 20g/cm3.
Embodiment 3
1st, carbonization silicon series prescription：SiC powder 6.4kg, Al2O3Powder 1.8kg, SiO2Powder 1.8kg, Alumina gel 0.48kg, Hydroxypropyl methyl cellulose 0.09kg, glycerol 0.2kg, water 1kg.
2nd, preparation method：First by load weighted SiC powders, Al2O3Powder, SiO2Powder, hydroxypropyl methyl cellulose are placed in Electric blender mix homogeneously, load weighted Alumina gel and water are slowly added in mixed powder, continue batch mixing 35 minutes, are obtained Uniform pug, pug moisture are 13.8%, carry out vacuum granulation 4 times after old 24 hours, by pelletize after mud bar old 24 Hour；Then wire material is extruded into vacuum-extruder plasticity, the extruded velocity of wire material is 1 m/min, and wire material is in transmission Take to form multiple ceramic rings, ceramic ring overlaps and is interleaved together forming the winding ceramic body with multiple structure；The biography Send band located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 15 ms/min, the extruder The distance of extruder mouth and conveyer belt be 300mm；Winding ceramic body passes through to cut, in 150 DEG C of dryings, the moisture control of base substrate 1.6%, dried winding ceramic body burns till under 1350 DEG C of air atmospheres system, firing time 21 hours.
3rd, the SiC winding ceramic filter proportions for burning till are 0.72g/cm3, porosity is 73%, strength at normal temperature 3.0MPa, 1200 DEG C of remaining air cooling rupture strength 1.8MPa, flux is 25g/cm3.
Embodiment 4
1st, alumina series formula：TiO2Powder 0.05kg, Al2O3Powder 4.55kg, SiO2Powder 0.25kg, Kaolin powder Material 0.1kg, Alumina gel 0.25kg, hydroxypropyl methyl cellulose 0.05kg, glycerol 0.1kg, water 0.6kg.
2nd, preparation method：First by load weighted TiO2Powder, Al2O3Powder, SiO2Powder, Kaolin powder, hydroxypropyl first Base cellulose is placed in electric blender mix homogeneously, and load weighted Alumina gel and water are slowly added in mixed powder, continues mixed Material 30 minutes, obtains uniform pug, and pug moisture is 14.5%, carries out vacuum granulation 5 times after old 24 hours, by pelletize after Mud bar old 24 hours；Then wire material is extruded into vacuum-extruder plasticity, the extruded velocity of wire material is 2 ms/min, Wire material forms multiple ceramic rings on a moving belt, and ceramic ring overlaps and is interleaved together forming the winding pottery with multiple structure Base substrate；Located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 18 ms/min to the conveyer belt Clock, the extruder mouth of the extruder are 500mm with the distance of conveyer belt；Winding ceramic body is by cutting, dry at 180 DEG C Dry, 1.6%, dried winding ceramic body burns till under 1350 DEG C of air atmospheres the moisture Control of base substrate, firing time 22 hours.
The proportion of the aluminium oxide winding ceramic filter for the 3rd, burning till is 0.80g/cm3, porosity is 74%, and the anti-folding of room temperature is strong Degree 2.7MPa, 1200 DEG C of remaining air cooling rupture strength 1.4MPa, flux is 18g/cm3.
Embodiment 5
1st, alumina series formula：TiO2Powder 0.075kg, Al2O3Powder 7.2kg, SiO2Powder 0.375kg, Kaolin powder Material 0.15kg, Ludox 0.375kg, carboxymethyl cellulose 0.75kg, glycerol 0.15kg, water 0.9kg.
2nd, preparation method：First by load weighted TiO2Powder, Al2O3Powder, SiO2Powder, Kaolin powder, carboxymethyl are fine Dimension element is placed in electric blender mix homogeneously, and load weighted Ludox and water are slowly added in mixed powder, continues batch mixing 40 Minute, obtain uniform pug, pug moisture is 15%, carries out vacuum granulation 5 times after old 24 hours, by pelletize after mud bar Old 24 hours；Then wire material is extruded into vacuum-extruder plasticity, the extruded velocity of wire material is 2.5 ms/min, wire Material forms multiple ceramic rings on a moving belt, and ceramic ring overlaps and is interleaved together forming the winding ceramic blank with multiple structure Body；Located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 20 ms/min to the conveyer belt, The extruder mouth of the extruder is 800mm with the distance of conveyer belt；Winding ceramic body passes through to cut, in 180 DEG C of dryings, base 1.6%, dried winding ceramic body burns till under 1320 DEG C of air atmospheres the moisture Control of body, and firing time 22 is little When.
The proportion of the aluminium oxide winding ceramic filter for the 3rd, burning till is 0.82g/cm3, porosity is 75%, and the anti-folding of room temperature is strong Degree 2.6MPa, 1200 DEG C of remaining air cooling rupture strength 1.5MPa, flux is 25g/cm3.
Embodiment 6
1st, aluminium oxide-cordierite system formula：Al2O3Powder 5.7kg, SiO2Powder 0.9kg, Kaolin powder 0.7kg, violet Cordierite powder 2kg, Talcum powder 0.35kg, potassium feldspar powder 0.25kg, Alumina gel 0.5kg, hydroxypropyl methyl cellulose 0.1kg, glycerol 0.2kg, water 1.2kg.
2nd, preparation method：First by load weighted Al2O3Powder, SiO2Powder, Kaolin powder, cordierite powder, Pulvis Talci Material, potassium feldspar powder, hydroxypropyl methyl cellulose are placed in electric blender mix homogeneously, will be slow to load weighted Alumina gel and water Add in mixed powder, continue batch mixing 50 minutes, obtain uniform pug, pug moisture is 14.2%, and old 24 hours laggard Row vacuum granulation 5 times, by pelletize after mud bar old 24 hours；Then wire material, wire are extruded into vacuum-extruder plasticity The extruded velocity of material is 1.5 ms/min, and wire material forms multiple ceramic rings on a moving belt, and ceramic ring is overlapped and is interleaved together Form the winding ceramic body with multiple structure；The conveyer belt is located at the lower section of the extruder mouth of the extruder, described The transmission speed of conveyer belt is 15 ms/min, and the extruder mouth of the extruder is 10mm～1000mm with the distance of conveyer belt； By cutting, in 170 DEG C of dryings, 1.6%, dried winding ceramic body exists the moisture Control of base substrate winding ceramic body Burn till under 1310 DEG C of air atmospheres, firing time 21 hours.
3rd, the aluminium oxide for burning till-cordierite winding ceramic filter proportion is 0.75g/cm3, porosity is 71%, room temperature Rupture strength 2.9MPa, 1200 DEG C of remaining air cooling rupture strength 1.6MPa, flux is 28g/cm3.
Embodiment 7
1st, aluminium oxide-cordierite system formula：Al2O3Powder 5.7kg, SiO2Powder 1.0kg, Kaolin powder 0.65kg, violet Cordierite powder 2kg, Talcum powder 0.3kg, potassium feldspar powder 0.25kg, Alumina gel 0.50kg, hydroxypropyl methyl cellulose 0.1kg, glycerol 0.2kg, water 1.0kg.
2nd, preparation method：First by load weighted Al2O3Powder, SiO2Powder, Kaolin powder, cordierite powder, Pulvis Talci Material, potassium feldspar powder, hydroxypropyl methyl cellulose are placed in electric blender mix homogeneously, will be slow to load weighted Alumina gel and water Add in mixed powder, continue batch mixing 35 minutes, obtain uniform pug, pug moisture is 14.7%, and old 24 hours laggard Row vacuum granulation 5 times, by pelletize after mud bar old 24 hours；Then wire material, wire are extruded into vacuum-extruder plasticity The extruded velocity of material is 3 ms/min, and wire material forms multiple ceramic rings on a moving belt, and ceramic ring is overlapped and is interleaved together shape Into the winding ceramic body with multiple structure；The conveyer belt is located at the lower section of the extruder mouth of the extruder, the biography The transmission speed for sending band is 25 ms/min, and the extruder mouth of the extruder is 1000mm with the distance of conveyer belt；Winding pottery , by cutting, in 200 DEG C of dryings, 1.6%, dried winding ceramic body is in 1350 DEG C of skies for the moisture Control of base substrate for base substrate Burn till under gas atmosphere, firing time 21 hours.
3rd, the aluminium oxide for burning till-cordierite winding ceramic filter proportion is 0.85g/cm3, porosity is 75%, room temperature Rupture strength 3.2MPa, 1200 DEG C of remaining air cooling rupture strength 2.0MPa, flux is 30.0g/cm3.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (10)

1. a kind of winding ceramic filter production technology, it is characterised in that include：
The uniform mixing granulation of primary raw material needed for winding ceramic filter will be prepared, obtain granulation material；
The granulation material is extruded into wire material on extruder, the extruded velocity of wire material is 0.2 m/min～3 ms/min Clock；
Wire material forms multiple ceramic rings on a moving belt, and ceramic ring overlaps and is interleaved together forming the winding with multiple structure Ceramic body；The conveyer belt located at the lower section of the extruder mouth of the extruder, the transmission speed of the conveyer belt is 5 meters/ Minute～25 ms/min, the extruder mouth of the extruder is 10mm～1000mm with the distance of conveyer belt；
The winding ceramic body is dried process；
Dried winding ceramic body is sintered, obtains winding ceramic filter.
2. as claimed in claim 1 winding ceramic filter production technology, it is characterised in that the wire material extrusion speed Spend for 0.5 m/min～2.5 ms/min；
The transmission speed of the conveyer belt is 10 ms/min～15 ms/min；
The extruder mouth of the extruder is 50mm～500mm with the distance of conveyer belt.
3. as claimed in claim 1 or 2 winding ceramic filter production technology, it is characterised in that the winding ceramic blank Body is made up of multiple identical ceramic rings, and the ceramic ring of same layer is equidistantly uniformly distributed, and the ceramic ring of adjacent layer is interspersed.
4. as claimed in claim 3 winding ceramic filter production technology, it is characterised in that the diameter of the wire material ForThe ceramic ring a diameter ofThe thickness of the ceramic ring be 1.0～ 3.0mm.
5. as claimed in claim 4 winding ceramic filter production technology, it is characterised in that the winding ceramic filter For circle, ellipse, rectangle, regular polygon or rhombus；
The porosity of the winding ceramic filter is 60～80%；
The size of the winding ceramic filter is 20～600mm；
The thickness of the winding ceramic filter is 5～50mm.
6. as claimed in claim 1 winding ceramic filter production technology, it is characterised in that the drying of the dried Temperature is 50～200 DEG C；
The sintering temperature of the sintering processes is 1200～1450 DEG C.
7. the production technology of winding ceramic filter as claimed in claim 1, it is characterised in that the ceramic mistake of preparation winding Primary raw material needed for filter includes：
8. the production technology of winding ceramic filter as claimed in claim 1, it is characterised in that the ceramic mistake of preparation winding Primary raw material needed for filter includes：
9. the production technology of winding ceramic filter as claimed in claim 1, it is characterised in that the ceramic mistake of preparation winding Primary raw material needed for filter includes：
10. as described in claim 7,8 or 9 winding ceramic filter production technology, it is characterised in that the binding agent bag Include low temperature bonding agent and high-temperature agglomerant；The low temperature bonding agent is carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyethylene One kind or combination in alcohol, modified starch；The high-temperature agglomerant is Ludox, the one kind in Alumina gel or combination；The modeling Agent is glycerol.
CN201610906173.9A 2016-10-17 2016-10-17 A kind of production technology of winding ceramic filter Pending CN106495730A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101164655A (en) * 2007-08-24 2008-04-23 晋城市富基新材料有限公司 Silicon carbide foam ceramic filter
CN102815932A (en) * 2012-09-17 2012-12-12 李少荣 Method for adjusting firing shrinkage of cordierite honeycomb ceramics by using amorphous silicon micropowder
CN202751888U (en) * 2012-08-24 2013-02-27 河南省宏达炉业有限公司 Multi-hole solid ceramic filter screen
CN103449802A (en) * 2013-08-06 2013-12-18 南昌大学 Complex-phase aluminium oxide foam ceramic material and preparation method thereof
CN103508750A (en) * 2013-06-07 2014-01-15 湖北神雾热能技术有限公司 Production method of non-polluting low-cost honeycomb ceramic
CN103964862A (en) * 2013-02-06 2014-08-06 济南圣泉倍进陶瓷过滤器有限公司 Ceramic filter and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101164655A (en) * 2007-08-24 2008-04-23 晋城市富基新材料有限公司 Silicon carbide foam ceramic filter
CN202751888U (en) * 2012-08-24 2013-02-27 河南省宏达炉业有限公司 Multi-hole solid ceramic filter screen
CN102815932A (en) * 2012-09-17 2012-12-12 李少荣 Method for adjusting firing shrinkage of cordierite honeycomb ceramics by using amorphous silicon micropowder
CN103964862A (en) * 2013-02-06 2014-08-06 济南圣泉倍进陶瓷过滤器有限公司 Ceramic filter and preparation method thereof
CN103508750A (en) * 2013-06-07 2014-01-15 湖北神雾热能技术有限公司 Production method of non-polluting low-cost honeycomb ceramic
CN103449802A (en) * 2013-08-06 2013-12-18 南昌大学 Complex-phase aluminium oxide foam ceramic material and preparation method thereof

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