CN108793988A - A kind of high porosity, low-expansion honeycomb porous ceramics and preparation method thereof - Google Patents

A kind of high porosity, low-expansion honeycomb porous ceramics and preparation method thereof Download PDF

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CN108793988A
CN108793988A CN201810425045.1A CN201810425045A CN108793988A CN 108793988 A CN108793988 A CN 108793988A CN 201810425045 A CN201810425045 A CN 201810425045A CN 108793988 A CN108793988 A CN 108793988A
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parts
low
porous ceramics
high porosity
honeycomb porous
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陈桂香
吴广
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ANHUI ZHONGDING MEIDA ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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ANHUI ZHONGDING MEIDA ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
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    • 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
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
    • C04B38/0645—Burnable, meltable, sublimable materials
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
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Abstract

The invention discloses a kind of high porosity, low-expansion honeycomb porous ceramics, a kind of high porosity, low-expansion honeycomb porous ceramics manufacture material be 99 grades of alpha-aluminas, Unimodal Distribution, bulky grain talcum powder; hydrated alumina micro mist, electroquartz, Suzhou soil; cubic crystal zircon English; surfactant, plasticizer, foam lubricant; high purity water; modified tapioca starch, crystalline flake graphite, walnut shell powder.The present invention is used using preferred cordierite synthesis material and technique synthesis high-purity, low bulk cordierite crystal, using degradable tapioca, the crystalline flake graphite of sintering no pollution and walnut shell powder as good pore forming material, using the environmental friendly principle recycled, it is recycled waste material is generated in manufacturing process, the plug-hole material of the gas containing particulate matter is blocked as both ends, such setting can not only carry out waste utilization, its windage can also be made to reduce, be adapted to different operating modes.

Description

A kind of high porosity, low-expansion honeycomb porous ceramics and preparation method thereof
Technical field
The present invention relates to ceramic fabrication technique field, specially a kind of high porosity, the porous pottery of low-expansion honeycomb Porcelain and preparation method thereof.
Background technology
Particulate pollutant refers to the diameter in air and is less than 2.5 microns of molecules, and main source comes automobile exhaust gas, power generation Factory, the stove etc. for burning timber.Since these particles can penetrate into human lung depths, U.S.EPA thinks, in air The content of grain pollutant is likely to become air quality health index primary in the future.The solid or liquid particles to suspend in an atmosphere Object, (no matter in long or short term) can all cause to biology and human health damage, and major pollutants are one wherein in automobile exhaust gas Carbonoxide, hydrocarbon, oxynitrides, sulfur dioxide, smokeshade（Certain heavy metal compounds, lead compound, black smoke And mist of oil）, foul smell（Formaldehyde etc.）.For automobile as mobile pollution source, operating condition is complicated, and exhaust gas discharge supervision is administered and compared It is difficult.
Homemade goods are on the market for the particulate emission of diesel vehicle at present, used high hole ceramic honey comb or deposit Or porosity it is not high cause windage is excessive, cause different adaptability for working condition poor there are heat resistance deficiency the problems such as, for this purpose, It is proposed that a kind of high porosity, low-expansion honeycomb porous ceramics and preparation method thereof.
Invention content
The purpose of the present invention is to provide a kind of high porosity, low-expansion honeycomb porous ceramics and its preparation sides Method, to solve the problems, such as to propose in background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of high porosity, low-expansion honeycomb are more Hole ceramics, a kind of high porosity, low-expansion honeycomb porous ceramics manufacture material be 99 grades of alpha-aluminas, it is single Peak distribution, bulky grain talcum powder, hydrated alumina micro mist, electroquartz, Suzhou soil, cubic crystal zircon English, surfactant, Plasticizer, foam lubricant, high purity water, modified tapioca starch, crystalline flake graphite, walnut shell powder, and pore forming material and inorganic particle connect Connect material, the high porosity, low-expansion honeycomb porous ceramics the parts by weight of manufacture material be 99 grades of alpha-oxidations 15-20 parts of aluminium powder, 35-45 parts of Unimodal Distribution, bulky grain talcum powder, 10-15 parts of hydrated alumina micro mist, electroquartz 10-15 Part, 16-20 parts of Suzhou soil, 2 parts of cubic crystal zircon English <, 0.5-1 parts of surfactant, 2-3 parts of plasticizer, foam lubricant 0.2 part of <, 22-28 parts of high purity water, 1.5-2.0 parts of modified tapioca starch, 3-15 parts of crystalline flake graphite, 3-15 parts of walnut shell powder are made 0.5 part of Porous materials and inorganic particle connecting material <.
A kind of preparation method of high porosity, low-expansion honeycomb porous ceramics, it is a kind of high porosity, low swollen The preparation method of the honeycomb porous ceramics of swollen coefficient includes the following steps：
（1）：The manufacture material for weighing certain mass number is spare；
（2）：By modified tapioca starch, crystalline flake graphite, walnut shell powder, plasticizer and inorganic particle connecting material be put into mixing machine it In, mix 20-25min under conditions of closed, high speed；
（3）：Low-expansion coefficient cordierite crystal host inorganic powder is synthesized, is ground using whole ball milling, ball milling is rotating speed 50-150 revs/min, Ball-milling Time is no more than 30min；
（4）：By after ball milling powder sieving removal of impurities, then with step（2）In inorganic particle connecting material, plasticizer be put into mixing It among machine, is mixed under conditions of closed, high speed, incorporation time is no more than 30min；
（5）：Finally by surfactant（It is configured to 5% solution）, foaming lubricant, high purity water put into inside mixing machine successively, mix Closing the time is no more than 10min, reach unite, granulation outcome, subsequent blowing mediated to kneader；
（6）：It is mediated by controlling material, density is 1.3-1.6g/cm3 after bonding, controls kneading time, direct spiral after kneading It squeezes, squeeze sieving 60-80 mesh net later and carries out vacuum suction and form it into mud column；
（7）：Constant pressure, extrusion molding, then with 9150MHz microwave fast shapings；
（8）：Then be sintered, process, plug-hole, secondary low-temperature sintering, skin-grafting and inspection.
The present invention is used using preferred cordierite synthesis material and technique synthesis high-purity, low bulk cordierite crystal, Using degradable tapioca, be sintered no pollution crystalline flake graphite and walnut shell powder as good pore forming material, using following The environmental friendly principle that ring utilizes recycles waste material is generated in manufacturing process, the plug-hole material of the gas containing particulate matter is blocked as both ends Material, such setting can not only carry out waste utilization, its windage can also be made to reduce, be adapted to different operating modes.
Specific implementation mode
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one：
A kind of high porosity, low-expansion honeycomb porous ceramics, a kind of high porosity, low-expansion honeycomb are more The manufacture material of hole ceramics is 99 grades of alpha-aluminas, Unimodal Distribution, bulky grain talcum powder, hydrated alumina micro mist, electric smelting stone English, Suzhou soil, cubic crystal zircon English, surfactant, plasticizer, foam lubricant, high purity water, modified tapioca starch, squama Piece graphite, walnut shell powder, pore forming material and inorganic particle connecting material, the high porosity, low-expansion honeycomb are porous The parts by weight of the manufacture material of ceramics are 99 grades of 15 parts of alpha-aluminas, and 35 parts of Unimodal Distribution, bulky grain talcum powder are hydrated oxygen Change 10 parts of aluminium micro mist, 10 parts of electroquartz, 16 parts of Suzhou soil, 1.5 parts of cubic crystal zircon English, 0.5 part of surfactant, plasticising 2 parts of agent, foam 0.1 part of lubricant, 22 parts of high purity water, 1.5 parts of modified tapioca starch, 3 parts of crystalline flake graphite, and 3 parts of walnut shell powder is made 0.4 part of Porous materials and inorganic particle connecting material.
A kind of preparation method of high porosity, low-expansion honeycomb porous ceramics, it is a kind of high porosity, low swollen The preparation method of the honeycomb porous ceramics of swollen coefficient includes the following steps：
（1）：The manufacture material for weighing certain mass number is spare；
（2）：By modified tapioca starch, crystalline flake graphite, walnut shell powder, plasticizer and inorganic particle connecting material be put into mixing machine it In, mix 20min under conditions of closed, high speed；
（3）：Low-expansion coefficient cordierite crystal host inorganic powder is synthesized, is ground using whole ball milling, ball milling is rotating speed 50 revs/min, Ball-milling Time 28min；
（4）：By after ball milling powder sieving removal of impurities, then with step（2）In inorganic particle connecting material, plasticizer be put into mixing Among machine, mixed under conditions of closed, high speed, incorporation time 28min；
（5）：Finally by surfactant（It is configured to 5% solution）, foaming lubricant, high purity water put into inside mixing machine successively, mix The conjunction time is 10min, reach unite, granulation outcome, subsequent blowing mediated to kneader；
（6）：It is mediated by controlling material, density is 1.3g/cm3 after bonding, controls kneading time, and direct spiral is squeezed after kneading Pressure squeezes 60 mesh nets of sieving later and carries out vacuum suction and form it into mud column；
（7）：Constant pressure, extrusion molding, then with 9150MHz microwave fast shapings；
（8）：Then be sintered, process, plug-hole, secondary low-temperature sintering, skin-grafting and inspection.
Embodiment two：
A kind of high porosity, low-expansion honeycomb porous ceramics, a kind of high porosity, low-expansion honeycomb are more The manufacture material of hole ceramics is 99 grades of alpha-aluminas, Unimodal Distribution, bulky grain talcum powder, hydrated alumina micro mist, electric smelting stone English, Suzhou soil, cubic crystal zircon English, surfactant, plasticizer, foam lubricant, high purity water, modified tapioca starch, squama Piece graphite, walnut shell powder, pore forming material and inorganic particle connecting material, the high porosity, low-expansion honeycomb are porous The parts by weight of the manufacture material of ceramics are 99 grades of 20 parts of alpha-aluminas, and 45 parts of Unimodal Distribution, bulky grain talcum powder are hydrated oxygen Change 15 parts of aluminium micro mist, 15 parts of electroquartz, 20 parts of Suzhou soil, 1 part of cubic crystal zircon English, 1 part of surfactant, plasticizer 3 Part, foam 0.15 part of lubricant, 28 parts of high purity water, 2.0 parts of modified tapioca starch, 15 parts of crystalline flake graphite, and 15 parts of walnut shell powder is made 0.45 part of Porous materials and inorganic particle connecting material.
A kind of preparation method of high porosity, low-expansion honeycomb porous ceramics, it is a kind of high porosity, low swollen The preparation method of the honeycomb porous ceramics of swollen coefficient includes the following steps：
（1）：The manufacture material for weighing certain mass number is spare；
（2）：By modified tapioca starch, crystalline flake graphite, walnut shell powder, plasticizer and inorganic particle connecting material be put into mixing machine it In, mix 25min under conditions of closed, high speed；
（3）：Low-expansion coefficient cordierite crystal host inorganic powder is synthesized, is ground using whole ball milling, ball milling is rotating speed 150 revs/min, Ball-milling Time is no more than 30min；
（4）：By after ball milling powder sieving removal of impurities, then with step（2）In inorganic particle connecting material, plasticizer be put into mixing Among machine, mixed under conditions of closed, high speed, incorporation time 30min；
（5）：Finally by surfactant（It is configured to 5% solution）, foaming lubricant, high purity water put into inside mixing machine successively, mix The conjunction time is 10min, reach unite, granulation outcome, subsequent blowing mediated to kneader；
（6）：It is mediated by controlling material, density is 1.3g/cm3 after bonding, controls kneading time, and direct spiral is squeezed after kneading Pressure squeezes 80 mesh nets of sieving later and carries out vacuum suction and form it into mud column；
（7）：Constant pressure, extrusion molding, then with 9150MHz microwave fast shapings；
（8）：Then be sintered, process, plug-hole, secondary low-temperature sintering, skin-grafting and inspection.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (2)

1. a kind of high porosity, low-expansion honeycomb porous ceramics, it is characterised in that：It is a kind of high porosity, low swollen The manufacture material of the honeycomb porous ceramics of swollen coefficient is 99 grades of alpha-aluminas, Unimodal Distribution, bulky grain talcum powder, aqua oxidation Aluminium micro mist, electroquartz, Suzhou soil, cubic crystal zircon English, surfactant, plasticizer, foam lubricant, and high purity water changes Property tapioca, crystalline flake graphite, walnut shell powder, pore forming material and inorganic particle connecting material, the high porosity, low bulk system The parts by weight of the manufacture material of several honeycomb porous ceramics are 99 grades of 15-20 parts of alpha-aluminas, and Unimodal Distribution, bulky grain are slided 35-45 parts of mountain flour, 10-15 parts of hydrated alumina micro mist, 10-15 parts of electroquartz, 16-20 parts of Suzhou soil, cubic crystal zircon 2 parts of English <, 0.5-1 parts of surfactant, 2-3 parts of plasticizer, 0.2 part of foaming lubricant L T.LT.LT, 22-28 parts of high purity water, innovation wood 1.5-2.0 parts of sweet potato starch, 3-15 parts of crystalline flake graphite, 3-15 parts of walnut shell powder, pore forming material and inorganic particle connecting material < 0.5 Part.
2. the preparation method of a kind of high porosity, low-expansion honeycomb porous ceramics, it is characterised in that：A kind of high hole Gap rate, the preparation method of low-expansion honeycomb porous ceramics include the following steps：
（1）：The manufacture material for weighing certain mass number is spare；
（2）：By modified tapioca starch, crystalline flake graphite, walnut shell powder, plasticizer and inorganic particle connecting material be put into mixing machine it In, mix 20-25min under conditions of closed, high speed；
（3）：Low-expansion coefficient cordierite crystal host inorganic powder is synthesized, is ground using whole ball milling, ball milling is rotating speed 50-150 revs/min, Ball-milling Time is no more than 30min；
（4）：By after ball milling powder sieving removal of impurities, then with step（2）In inorganic particle connecting material, plasticizer be put into mixing It among machine, is mixed under conditions of closed, high speed, incorporation time is no more than 30min；
（5）：Finally by surfactant（It is configured to 5% solution）, foaming lubricant, high purity water put into inside mixing machine successively, mix Closing the time is no more than 10min, reach unite, granulation outcome, subsequent blowing mediated to kneader；
（6）：It is mediated by controlling material, density is 1.3-1.6g/cm3 after bonding, controls kneading time, direct spiral after kneading It squeezes, squeeze sieving 60-80 mesh net later and carries out vacuum suction and form it into mud column；
（7）：Constant pressure, extrusion molding, then with 9150MHz microwave fast shapings；
（8）：Then be sintered, process, plug-hole, secondary low-temperature sintering, skin-grafting and inspection.
CN201810425045.1A 2018-05-07 2018-05-07 A kind of high porosity, low-expansion honeycomb porous ceramics and preparation method thereof Pending CN108793988A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102459125A (en) * 2009-06-05 2012-05-16 康宁股份有限公司 Cordierite-forming batch materials and methods of using the same
CN103449840A (en) * 2013-08-28 2013-12-18 北京中安四海节能环保工程技术有限公司 Honeycomb ceramic carrier and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102459125A (en) * 2009-06-05 2012-05-16 康宁股份有限公司 Cordierite-forming batch materials and methods of using the same
CN103449840A (en) * 2013-08-28 2013-12-18 北京中安四海节能环保工程技术有限公司 Honeycomb ceramic carrier and preparation method thereof

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Application publication date: 20181113