CN104801114B - Ceramic filtering element - Google Patents
Ceramic filtering element Download PDFInfo
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- CN104801114B CN104801114B CN201410036392.7A CN201410036392A CN104801114B CN 104801114 B CN104801114 B CN 104801114B CN 201410036392 A CN201410036392 A CN 201410036392A CN 104801114 B CN104801114 B CN 104801114B
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Abstract
The invention discloses a ceramic filtering element. The ceramic filtering element comprises a briquette body containing a non-plastic raw material, clay and a binder; the surface of the briquette body is coated with multiple ceramic layers, and each ceramic layer has thickness of 0.001-100 um, and is a high-temperature calcination layer. The briquette body prepared from the non-plastic raw material has good stability; after coating a layer of ceramic particles on the briquette body, high temperature calcination is carried out to tightly bond the first ceramic layer with the briquette body; a second layer of ceramic particles coats on the ceramic layer subjected to high temperature calcination and then high temperature calcination is carried out again, so that the second ceramic layer tightly bonds with first ceramic layer; other ceramic layers coats in turn until the set average filtering aperture of the ceramic filtering element is reached. The briquette body provided by the invention employs non-plastic raw material and clay, and the ceramic layers are subjected to calcination to realize relatively stable structure, high abrasion resistance and high corrosion resistance.
Description
Technical field
The invention belongs to art of filters, is more particularly to a kind of ceramic filter element.
Background technology
Ceramic filter element is had a wide range of applications in water process and pump-down process field, also can be applicable to medicine, food
In other field headed by product field, for being filtered to remove suspended material, antibacterial, dust present in the fluids such as liquid, gas
Deng.In addition, it can also be used to which gas more than liquid mixture, two kinds of compositions of separation and purification more than two kinds of compositions of separation and purification is mixed
Compound.But the intensity of ceramic filter element is to be improved.
The content of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of fastness preferably durable ceramic filter element.
In order to reach above-mentioned technical purpose, technical scheme is as follows：
A kind of ceramic filter element, including moulded pottery not yet put in a kiln to bake body, moulded pottery not yet put in a kiln to bake body include non-plastic raw material, clay and binding agent, moulded pottery not yet put in a kiln to bake
The surface of body scribbles one or more layers ceramic layer, and the thickness in monolayer of ceramic layer is 0.01um～100um, and every layer of ceramic layer is
High-temperature calcination layer.
Its advantage is：Stability with moulded pottery not yet put in a kiln to bake body made by non-plastic raw material is preferable, on moulded pottery not yet put in a kiln to bake body coats one
After layer ceramic particle, through high-temperature calcination, ground floor ceramic layer and moulded pottery not yet put in a kiln to bake body tight bond are made, in the pottery through high-temperature calcination
Second layer ceramic particle is coated on enamel coating, then carries out high-temperature calcination, second layer ceramic layer and ground floor ceramic layer tight bond, according to
Secondary painting upper ceramic layer, until it reaches the average filtration aperture of the ceramic filter element of setting.The moulded pottery not yet put in a kiln to bake body of the present invention is using lean
Property raw material and clay make, and ceramic layer is through high-temperature calcination, and structure is more stable, and wearability is high, and corrosion resistance is high.
In some embodiments, average pore size of the average pore size of ceramic layer less than moulded pottery not yet put in a kiln to bake body.
Its advantage is：Average pore size of the average pore size of ceramic layer less than moulded pottery not yet put in a kiln to bake body, so that ceramic filter is first
Part has preferable filtration.
In some embodiments, the ceramics near moulded pottery not yet put in a kiln to bake body are less than away from the average pore size of the ceramic layer of moulded pottery not yet put in a kiln to bake body
The average pore size of layer.
Its advantage is：The average pore size of each ceramic layer of moulded pottery not yet put in a kiln to bake body surface periodically reduces, ceramic filter
The pressure loss of element is little, preferable to the filter effect of mixture.
In some embodiments, moulded pottery not yet put in a kiln to bake body includes being 80% to 84% non-plastic raw material by weight, is by weight
5% to 7% clay, binding agent by weight for 3% to 5%, the by weight water for 7 to 9%.
Its advantage is：Made by according to the above ratio, the stability of moulded pottery not yet put in a kiln to bake body is preferable.
In some embodiments, non-plastic raw material is aluminium oxide or/and white fused alumina or/and volcanic rock Calx.
Its advantage is：The moulded pottery not yet put in a kiln to bake body by made by one or more in aluminium oxide, white fused alumina and volcanic rock Calx
Space it is more, filter effect is preferable.
Specific embodiment
The present invention provides a kind of ceramic filter element, including moulded pottery not yet put in a kiln to bake body and ceramic layer.Moulded pottery not yet put in a kiln to bake body include non-plastic raw material,
Clay and binding agent.Moulded pottery not yet put in a kiln to bake body is supporter, play made by act on, make the Stability Analysis of Structures of right fruit ceramic filter element.Mud
The surface of base body scribbles multi-layer ceramics layer.Ceramic layer is made up of ceramic particle.The thickness in monolayer of ceramic layer is 0.01um
～100um.Every layer of ceramic layer is coated with next layer of ceramic layer after high-temperature calcination.In the surface-coated first of moulded pottery not yet put in a kiln to bake body
Ceramic layer, after high-temperature calcination, in its second ceramic layer of surface-coated, the second ceramic layer is through high-temperature calcination for the first ceramic layer
Afterwards, in its 3rd ceramic layer of surface-coated, the rest may be inferred, until the pore size filter of ceramic filter element reaches satisfactory hole
Footpath.The mean diameter of ceramic particle of the first ceramic layer is made less than the non-plastic raw material granule and clay particle for making moulded pottery not yet put in a kiln to bake body
Mean diameter, then the average pore size of the first ceramic layer less than moulded pottery not yet put in a kiln to bake body average pore size, had ceramic filter element
Filter effect.The mean diameter for making the ceramic particle of the second ceramic layer is less than the average grain of the ceramic particle for making the first ceramic layer
Footpath, the mean diameter for making the ceramic particle of the 3rd ceramic layer are less than the mean diameter of the ceramic particle for making the second ceramic layer,
The like, i.e., the average pore size of the ceramic layer away from moulded pottery not yet put in a kiln to bake body of ceramic filter element is less than the ceramics near moulded pottery not yet put in a kiln to bake body
The average pore size of coating.The average pore size of each ceramic layer of moulded pottery not yet put in a kiln to bake body surface periodically reduces, ceramic filter element
The pressure loss is little, preferable to the filter effect of mixture.
Embodiment one
Moulded pottery not yet put in a kiln to bake body include 80% non-plastic raw material, 7% clay, 5% binding agent and 8% water, wherein, non-plastic raw material includes
30% aluminium oxide, 25% white fused alumina and 25% volcanic rock Calx.Aluminium oxide, white fused alumina, volcanic rock Calx and clay it is average
Particle diameter is 20～50um.The moulded pottery not yet put in a kiln to bake body for being formed is rectangular-shape, and average pore size is 5～20um.On the surface of moulded pottery not yet put in a kiln to bake body
The first ceramic layer is coated, the mean diameter for making the alumina particle of the first ceramic layer is 5～20um, is made through high-temperature calcination
The first ceramic layer average pore size be 1.2～5um.Second ceramic layer coats make the second pottery on the surface of the first ceramic layer
The mean diameter of the alumina particle of enamel coating is 1.2～5um, through the average pore size of the second ceramic layer made by high-temperature calcination is
0.4～1.2um.3rd ceramic layer coats are in the flat of the alumina particle on the surface of the second ceramic layer, making the 3rd ceramic layer
Particle diameter is 0.5～1.2um, through the average pore size of the 3rd ceramic layer of high-temperature calcination be 0.2～0.5um.
Moulded pottery not yet put in a kiln to bake body is the filtration of the rectangular-shape being made up of porous material formed using the technique of ceramics extrusion molding
Unit.Two parallel surfaces of moulded pottery not yet put in a kiln to bake body have multiple meshes, and mesh constitutes fluid passage.On the surface of moulded pottery not yet put in a kiln to bake body
Coated ceramic layer, the surface of ceramic layer equally have multiple meshes.First ceramic layer, the second ceramic layer and the 3rd ceramic layer are to adopt
Utilized with aluminium oxide particles and be filtered into embrane method formation.The mean diameter of aluminium oxide particles of the first ceramic layer is made less than making
The mean diameter of the granule of moulded pottery not yet put in a kiln to bake body, so as to the average pore size of the first ceramic layer is less than the average pore size of moulded pottery not yet put in a kiln to bake body so that
Ceramic filter element has the effect filtered.Making the mean diameter ratio of the aluminium oxide particles of the second ceramic layer, to make first ceramic
The mean diameter of the aluminium oxide particles of layer is little.The mean diameter ratio for making the aluminium oxide particles of the 3rd ceramic layer makes the second pottery
The mean diameter of the aluminium oxide particles of enamel coating is little.So that the average pore size stage of each ceramic layer of moulded pottery not yet put in a kiln to bake body surface
Property ground reduce, the pressure loss of ceramic filter element is little, preferable to the filter effect of mixture.
Slurry mixture is imported in ceramic filter element from the side of the 3rd ceramic layer, through the mistake of the 3rd ceramic layer
Filter, the impurity in mixture are separated, and the clean water being filtrated to get is exported from the side that moulded pottery not yet put in a kiln to bake body is not coated with ceramic layer.
Embodiment two
Moulded pottery not yet put in a kiln to bake body include 84% non-plastic raw material, 5% clay, 4% binding agent and 7% water, wherein, non-plastic raw material includes
44% aluminium oxide and 40% volcanic rock Calx.The mean diameter of aluminium oxide and volcanic rock Calx and clay is 20～50um.Institute
The moulded pottery not yet put in a kiln to bake body of formation is hollow cylindrical shape, and average pore size is 5～20um.Coat in the interior side-wall surface of moulded pottery not yet put in a kiln to bake body
First ceramic layer, the mean diameter for making the zirconium dioxide particle of the first ceramic layer is 5～20um, through made by high-temperature calcination
The average pore size of the first ceramic layer is 1.2～5um.Second ceramic layer coats make second ceramic on the surface of the first ceramic layer
The mean diameter of the zirconium dioxide particle of layer is 1.2～5um, through the average pore size of the second ceramic layer made by high-temperature calcination is
0.4～1.2um.
Moulded pottery not yet put in a kiln to bake body is the hollow cylindrical shape being made up of porous material formed using the technique of ceramics extrusion molding
Filter element.There are on the side wall of moulded pottery not yet put in a kiln to bake body multiple meshes, mesh constitutes fluid passage.On the medial wall of moulded pottery not yet put in a kiln to bake body
Coated ceramic layer, the surface of ceramic layer equally have multiple meshes.First ceramic layer and the second ceramic layer are to adopt zirconium dioxide
Particle is utilized and is filtered into embrane method formation.The mean diameter of zirconium dioxide particle of the first ceramic layer is made less than making moulded pottery not yet put in a kiln to bake sheet
The mean diameter of the granule of body, so as to the average pore size of the first ceramic layer is less than the average pore size of moulded pottery not yet put in a kiln to bake body so that ceramic mistake
Filtering element has the effect filtered.The mean diameter of zirconium dioxide particle of the second ceramic layer is made than making the first ceramic layer
The mean diameter of zirconium dioxide particle is little.Then the average pore size of the second ceramic layer is less than the average pore size of the first ceramic layer.Mud
The average pore size of each ceramic layer of base body surface periodically reduces, and the pressure loss of ceramic filter element is little, to mixing
The filter effect of thing is preferable.
Slurry mixture is imported in ceramic filter element from the side of the second ceramic layer, through the mistake of the second ceramic layer
Filter, the impurity in mixture are separated, and the clean water being filtrated to get is derived from the lateral wall of ceramic filter element.
Embodiment three
Moulded pottery not yet put in a kiln to bake body include 82% non-plastic raw material, 6% clay, 3% binding agent and 9% water, wherein, non-plastic raw material select
Aluminium oxide.The mean diameter of aluminium oxide is 20～50um.The moulded pottery not yet put in a kiln to bake body for being formed is hollow cylindrical shape, and average pore size is
5～20um.One layer of ceramic layer is coated in the interior side-wall surface of moulded pottery not yet put in a kiln to bake body, the average grain of the zirconium dioxide particle of ceramic layer is made
Footpath is 5～20um, and the average pore size of ceramic layer is 1.2～5um.The mean diameter for making the zirconium dioxide particle of ceramic layer is less than
Make the mean diameter of the alumina particle of moulded pottery not yet put in a kiln to bake body.
Moulded pottery not yet put in a kiln to bake body is the hollow cylindrical shape being made up of porous material formed using the technique of ceramics extrusion molding
Filter element.There are on the side wall of moulded pottery not yet put in a kiln to bake body multiple meshes, mesh constitutes fluid passage.In the medial wall of moulded pottery not yet put in a kiln to bake body
Coated ceramic layer on surface, the surface of ceramic layer equally have multiple meshes.Ceramic layer was utilized using zirconium dioxide particle
Filter membrane formation process is formed.The mean diameter for making the aluminium oxide particles of the first ceramic layer is flat less than the granule for making moulded pottery not yet put in a kiln to bake body
Equal particle diameter, so as to the first ceramic layer average pore size less than moulded pottery not yet put in a kiln to bake body average pore size so that ceramic filter element with compared with
Good filtration.
Slurry mixture is imported in ceramic filter element from the side of ceramic layer, through the filtration of ceramic layer, mixing
Impurity in thing is separated, and the clean water being filtrated to get is derived from the lateral wall of ceramic filter element.
Above-described is only the preferred implementation of ceramic filter element of the present invention, it is noted that general for this area
For logical technical staff, without departing from the concept of the premise of the invention, some deformations and improvement can also be made, these are all
Belong to protection scope of the present invention.
Claims (1)
1. a kind of ceramic filter element, it is characterised in that including moulded pottery not yet put in a kiln to bake body, the moulded pottery not yet put in a kiln to bake body is by weight including 80%
Non-plastic raw material, 7% clay, 5% binding agent and 8% water；Aluminium oxide of the non-plastic raw material by weight including 30%,
25% white fused alumina and 25% volcanic rock Calx；Moulded pottery not yet put in a kiln to bake body is cuboid, and average pore size is 5～20 μm；The moulded pottery not yet put in a kiln to bake sheet
The surface of body scribbles three layers of ceramic layer, and ground floor ceramic layer average pore size is 1.2～5 μm, makes the oxidation of ground floor ceramic layer
Alumina particles mean diameter is 5～20 μm；Second layer ceramic layer average pore size is 0.4～1.2 μm, makes the oxygen of second layer ceramic layer
It is 1.2～5 μm to change alumina particles mean diameter；Third layer ceramic layer average pore size is 0.2～0.5 μm, makes third layer ceramic layer
Alumina particle mean diameter be 0.5～1.2 μm；The thickness in monolayer of the ceramic layer is 0.01 μm～100 μm, described in per layer
Ceramic layer is high-temperature calcination layer, and ceramic layer is made up of ceramic particle；
The mean diameter of the aluminium oxide, white fused alumina and volcanic rock Calx and clay is 20～50 μm；
Two parallel surfaces of moulded pottery not yet put in a kiln to bake body have multiple meshes, and mesh constitutes fluid passage；The surface of ceramic layer has many
Individual mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036392.7A CN104801114B (en) | 2014-01-24 | 2014-01-24 | Ceramic filtering element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036392.7A CN104801114B (en) | 2014-01-24 | 2014-01-24 | Ceramic filtering element |
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| CN104801114A CN104801114A (en) | 2015-07-29 |
| CN104801114B true CN104801114B (en) | 2017-05-03 |
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| CN201410036392.7A Active CN104801114B (en) | 2014-01-24 | 2014-01-24 | Ceramic filtering element |
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| MX2021002538A (en) * | 2018-09-03 | 2021-07-21 | Corning Inc | Honeycomb body with porous material. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081394A (en) * | 1992-07-15 | 1994-02-02 | 国家建筑材料工业局山东工业陶瓷研究设计院 | Gradient creamics with ceramic membrane fenestrata |
| CN101318808A (en) * | 2007-08-07 | 2008-12-10 | 江苏省宜兴非金属化工机械厂 | Porous ceramic supporting body for high-strength inorganic separation film |
| CN101954246A (en) * | 2010-08-27 | 2011-01-26 | 清华大学 | Double-layer asymmetrical surface film of porous ceramic filter tube for dust filter and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6225246B1 (en) * | 1996-11-12 | 2001-05-01 | National Research Council Of Canada | Functionally gradient ceramic structures |
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2014
- 2014-01-24 CN CN201410036392.7A patent/CN104801114B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081394A (en) * | 1992-07-15 | 1994-02-02 | 国家建筑材料工业局山东工业陶瓷研究设计院 | Gradient creamics with ceramic membrane fenestrata |
| CN101318808A (en) * | 2007-08-07 | 2008-12-10 | 江苏省宜兴非金属化工机械厂 | Porous ceramic supporting body for high-strength inorganic separation film |
| CN101954246A (en) * | 2010-08-27 | 2011-01-26 | 清华大学 | Double-layer asymmetrical surface film of porous ceramic filter tube for dust filter and preparation method thereof |
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