CN109289299B - A kind of double water route Multi-layer composite ceramic filter plates and preparation method thereof - Google Patents
A kind of double water route Multi-layer composite ceramic filter plates and preparation method thereof Download PDFInfo
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- CN109289299B CN109289299B CN201811585657.3A CN201811585657A CN109289299B CN 109289299 B CN109289299 B CN 109289299B CN 201811585657 A CN201811585657 A CN 201811585657A CN 109289299 B CN109289299 B CN 109289299B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
- B01D33/23—Construction of discs or component sectors thereof
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- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
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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
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- C04B38/0615—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 the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
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Abstract
The present invention relates to a kind of double water route Multi-layer composite ceramic filter plates and preparation method thereof, belong to ceramic filter plate technical field, including substrate and drainpipe, two positioning seats are arranged in the end of the substrate, epoxy sealing glue-line is arranged in the side of the substrate and positioning seat installation place, the substrate includes seven-layer structure, seven-layer structure is the filter layer A being sequentially overlapped, filter layer B, water channel layer, filter layer C, water channel layer, filter layer B and filter layer A, the seven-layer structure is disposable pressure sintering molding, the water channel layer includes several support units, the gap that water supply stream passes through is set between adjacent support unit, the water channel layer is connected to filter layer C and filter layer B, the nozzle of the drainpipe is connected to filter layer C and water channel layer simultaneously, increase water route space while proof strength, improve apparent porosity, reduce blocking Probability, cleaning is simple, improves filter efficiency and filter effect, prolongs the service life.
Description
Technical field
The invention belongs to ceramic filter plate technical fields, and in particular to a kind of double water route Multi-layer composite ceramic filter plates and its
Preparation method.
Background technique
Ceramic vacuum filter is for the solid and the equipment that is separated of liquid in ore pulp, existing ceramic vacuum mistake
The filter element of filter is usually to be made of 12 pieces of fan-shaped ceramic wafers, using the inside and outside differential pressure of filter medium, passes through filter medium
Between micropore the water in ore pulp is collected, and subparticle be then adsorbed on filter medium outer surface formed filter cake realize it is solid
Liquid separation.Energy-efficient advantage possessed by ceramic vacuum filter depends on the " permeable airtight " special of ceramic filter plate
Property, therefore ceramic filter plate is the core of ceramic filtration equipment.Currently, ceramic filter board type in the prior art is more, it is main
There are hollow structure microporous ceramic filter plate, cohesive type ceramic filter plate and integral ceramic filter plate.
(1) hollow structure microporous ceramic filter plate: in order to guarantee filter plate have enough mechanical strengths, generally use compared with
The ceramic particle of small particle, but micropore can be made too small simultaneously, cause aluminium sheet flow resistance to increase, next two sidewalls is relatively
It is thin, it often will cause filter plate root in use process and cracking occur or even fractures, in addition, hollow support uses particles supports,
Resistance of water drainage is larger, influences filter efficiency and production capacity；
(2) cohesive type ceramic filter plate: two panels pairing is bonded and obtains filter plate, process flow by partial pressure mold molding are as follows:
Ingredient-membrane pressure monolithic-bonding-firing-plane machining-fitting attachments, the filter plate being prepared is longer at production. art process, raw
Produce it is inefficient, especially pairing bonding not only production efficiency it is low, also will cause many defects: such as consumption of binder and bonding pressure
Clamp force is uneven, will cause MATRIX CRACKING, and internal extra binder can generate crude protrusion in raised support rib side, occupy water
Road increases resistance of water drainage；Secondly, membrane pressure monolithic is the asymmetric flake structure for being surrounded by raised support rib on one side, in dry and firing
Easily causing to deform in the process, yield rate is not high, and general only 85% or so；In addition, also holding in bonding product use process
Easily occur to bond not strong and crack, anti-suction adaptability to changes fatigue strength is low, and service life is made to shorten；
(3) integral ceramic filter plate: the ceramic filter plate inner recess water route of existing integral forming process preparation
Height disunity, not only influence draining it is unobstructed, influence effectively to be separated by filtration, also will cause filtering plate thickness be uneven it is whole,
It not only will affect filter plate surface intensity, but also can also generate cracking damage because of became uneven during the sintering process, influence to give birth to
Finished product rate.
In order to solve deficiency existing for the above ceramic filter plate existing in the prior art, be badly in need of a kind of water route space it is big and
The high ceramic filter plate of apparent porosity, can have higher-strength and filtering plate face is relatively thin, to improve ceramic filter
The filter efficiency and service life of plate.
Summary of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of double water route Multi-layer composite ceramic filter plates and its preparation
Method.
The technical scheme to solve the above technical problems is that a kind of double water route Multi-layer composite ceramic filter plates, packet
Substrate and drainpipe are included, two positioning seats, the side of the substrate and the setting of positioning seat installation place is arranged in the end of the substrate
Epoxy sealing glue-line, the substrate include seven-layer structure, seven-layer structure is the filter layer A being sequentially overlapped, filter layer B, water channel layer,
Filter layer C, water channel layer, filter layer B and filter layer A, the seven-layer structure are disposable pressure sintering molding, the water channel layer packet
The gap that water supply stream passes through is set containing several support units, between adjacent support unit, and the water channel layer is connected to filter layer C
It is connected to simultaneously with filter layer C and water channel layer with the nozzle of filter layer B, the drainpipe.
The beneficial effects of the present invention are: the ceramic filter plate compound by setting seven-layer structure, with filter layer C and two sides water
The support unit of channel layer is filtered as spine support by filter layer A and filter layer B, and the plate face intensity of filter plate is improved
While avoid there is a situation where filter plate block；By using double waterway structures of two layers of water channel layer, compared to more common pottery
Porcelain filter plate has bigger water route space and higher apparent porosity, improves the filter efficiency of filter plate, extends filtering
The service life of plate；By forming pressure sintering of seven-layer structure, it can guarantee that filter plate water channel layer and each filter layer are flat
Whole thickness is uniform, keeps filter plate surface density uniform, effectively reduces the waste and loss of material, and energy-saving consumption-reducing improves production efficiency
With reduction production cost.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the filter layer A, filter layer B, filter layer C filtering hole be sequentially increased.
Beneficial effect using above-mentioned further scheme is, by using successively filter layer A, filter layer B and filter layer C
The hole of increase, formation gradient-porosity is poor, is conducive to the apparent porosity for improving filtering plate face, to improve the effect of filtering absorption
Rate.
Further, the thickness of the filter layer A and filter layer B is 3mm, and the thickness of the filter layer C and water channel layer is equal
For 6mm.
Further, the support unit cross sectional shape of the water channel layer is strip or round or ellipse.
Beneficial effect using above-mentioned further scheme is, by setting filter layer A and filter layer B with a thickness of 3mm, compared with
Thin filtering plate face is conducive to improve filter efficiency, while filter layer C and water channel layer is arranged with a thickness of 6mm, thicker water channel layer
Be conducive to increase water route space with filter layer C and increase the intensity of filter plate, extends the service life of filter plate.
Further, the drainpipe is set as 2.
Beneficial effect using above-mentioned further scheme is, by 2 drainpipes of setting, to guarantee the timely output of water flow,
Improve filter efficiency.
A kind of preparation method of double water route Multi-layer composite ceramic filter plates, step includes: (1) ingredient: corundum: potassium is long
Stone: kaolin: water: adhesive: dispersing agent is according to (400~450): 100:(25~30): (200~250): (1~2): 1 ratio
It is formulated as the slurry of slurry A, slurry B and slurry C, wherein corundum partial size successively increases in the ingredient of slurry A, slurry B and slurry C
Greatly；(2) substrate manufacture: slurry A being added into mold and forms filter layer A, and the slurry B that feeds after dry forms filter layer B, is then placed in
Water channel mould indentation slurry B is made the hollow out of water channel mould fill up material by the water channel mould complementary with water channel layer shape using press box
B is starched, slurry C is then added and forms filter layer C, adds the water channel mould complementary with water channel layer shape, is eventually adding slurry B and fills out
It fills after the hollow out of water channel mould and forms filter layer B on water channel layer top, slurry A is added after dry and forms filter layer A, pressurization one
Secondary molding；(3) fire: stripper member after product room temperature after molding is conserved 10-14 hours is put into 60-80 DEG C of drying chamber and bakes
After 96 hours, water channel mould is melted at high temperature, and the slurry filled in the hollow out of water channel mould forms support unit, water through baking
The gap that road mold is formed after melting becomes water flow space, and the product baked is put 1100 DEG C of -1500 DEG C of sintering of sintering oven
96 hours, drainpipe, positioning seat and epoxy sealing glue-line are installed after taking-up.
Further, corundum partial size is 180 mesh in the ingredient of the slurry A, and corundum partial size is 120- in the ingredient of slurry B
150 mesh, corundum partial size is 30-80 mesh in slurry C.
Further, the corundum: potassium feldspar: kaolin: water: adhesive: the configuration proportion of dispersing agent are as follows: 400:100:
30:200:2:1。
Further, the corundum: potassium feldspar: kaolin: water: adhesive: the configuration proportion of dispersing agent are as follows: 450:100:
25:250:1:1。
Further, in (3) step, stripper member after product room temperature after molding is conserved 12 hours.
Further, in (3) step, 1300 DEG C of sintering oven are put after having baked and is sintered 96 hours.
Further, the water channel mould is made of polystyrene foam plastics material.
Further, the corundum is Brown Alundum or white fused alumina.
Beneficial effect using above-mentioned further scheme is, by using aforementioned proportion range ingredient and using mold into
The once sintered molding of row, and the filtering pore size of each filter layer is controlled using the corundum of different-grain diameter, to form gradient
Aperture is effectively improved the apparent porosity of filtering plate face；The double waterway structures for using Double-layer water channel layer simultaneously effectively improve filtering effect
Rate；By using the water channel mould that can melt at high temperature, disposable sinter molding, the process for eliminating die sinking modulus tool, at
This is low, compared to the more common technique for needing to carry out on water channel layer and filter layer molding bonded, ensure that filter plate water channel and
Filtering plate face is smooth and thickness is uniform, keeps filter plate surface density uniform, and intensity is high, effectively reduces the loss of material, reduces production
Cost improves production efficiency, prolongs the service life.
Detailed description of the invention
Fig. 1 is the schematic perspective view of ceramic filter plate；
Fig. 2 is structure enlargement diagram at A in Fig. 1；
Fig. 3 is the broken section structural schematic diagram of ceramic filter plate internal water channel layer；
Fig. 4 is the structural schematic diagram of water channel mould；
Fig. 5 is permeation rate verifying attachment schematic diagram.
1. substrate in figure, 2. water channel layers, 3. drainpipes, 4. support units, 5. water channel moulds, 6. epoxy sealing glue-lines, 7.
Positioning seat, 11. filter layer A, 12. filter layer B, 13. filter layer C, 14. sides.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
A kind of double water route Multi-layer composite ceramic filter plates, including substrate 1 and drainpipe 3, the end setting two of the substrate 1
Epoxy sealing glue-line 6 is arranged in a positioning seat 7, the side 14 of the substrate 1 and 7 installation place of positioning seat, and the substrate 1 includes seven layers
Structure, seven-layer structure are the filter layer A being sequentially overlapped, filter layer B, water channel layer 2, filter layer C, water channel layer 2, filter layer B and mistake
Filtering layer A, the filter layer A, filter layer B, filter layer C filtering hole be sequentially increased, by by filter layer A, filter layer B and mistake
For filtering layer C using the hole being sequentially increased, formation gradient-porosity is poor, is conducive to the apparent porosity for improving filtering plate face, to improve
The thickness of the efficiency of filtering absorption, the filter layer A and filter layer B are 3mm, and the thickness of the filter layer C and water channel layer 2 is equal
For 6mm, by setting filter layer A and filter layer B with a thickness of 3mm, relatively thin filtering plate face is conducive to improve filter efficiency, together
When setting filter layer C and water channel layer 2 with a thickness of 6mm, thicker water channel layer 2 and filter layer C are conducive to increase water route space and increasing
The intensity for adding filter plate, extends the service life of filter plate, and the seven-layer structure is disposable pressure sintering molding, the water channel
Layer 2 includes several support units 4, the gap that setting water supply stream passes through between adjacent support unit 4, in the water channel layer 2
4 cross sectional shape of support unit in portion is strip or round or ellipse, and the water channel layer 2 is connected to filter layer C and filter layer B,
The nozzle of the drainpipe 3 is connected to filter layer C and water channel layer 2 simultaneously, and the drainpipe 3 is set as 2, passes through setting 2
Drainpipe 3 guarantees the timely output of water flow, improves filter efficiency, by the compound ceramic filter plate of setting seven-layer structure, with mistake
The support unit 4 of filtering layer C and two sides water channel layer 2 is used as spine support, is filtered, was improved by filter layer A and filter layer B
Avoided while the plate face intensity of filter plate there is a situation where filter plate block；By using double waterway structures of two layers of water channel layer 2,
There is bigger water route space and higher apparent porosity compared to more common ceramic filter plate, improve the filtering effect of filter plate
Rate extends the service life of filter plate；By forming pressure sintering of seven-layer structure, it can guarantee filter plate water channel layer
2 and the smooth thickness of each filter layer it is uniform, keep filter plate surface density uniform, effectively reduce the waste and loss of material, energy-saving consumption-reducing,
It improves production efficiency and reduces production cost.
Working principle: in use, above-mentioned ceramic filter plate is mounted on vacuum filter by positioning seat 7, work as vacuum
When filter rotates, ceramic filter plate immerses in ore pulp, and the moisture in ore pulp is successively via the filter layer A of ceramic filter plate, mistake
Filtering layer B enters water channel layer 2 after being filtered, water a part in two layers of water channel layer 2 is directly collected into outer via drainpipe 3
Portion, another part enter filter layer C it is for re-filtering after through being discharged by drainpipe 3, by using filter layer A, filter layer B,
Filter layer C is filtered the water in ore pulp and collects to two layers of water channel layer 2, and subparticle is then adsorbed on the outer of ceramic filter plate
Surface forms filter cake and realizes separation of solid and liquid.
Embodiment 1
A kind of preparation method of double water route Multi-layer composite ceramic filter plates, step includes: (1) ingredient: corundum: potassium is long
Stone: kaolin: water: adhesive: dispersing agent is formulated as slurry A, slurry B and slurry C according to 400:100:30:200:2:1 ratio
Slurry, wherein corundum partial size is sequentially increased in the ingredient of slurry A, slurry B and slurry C, corundum grain in the ingredient of the slurry A
Diameter is 180 mesh, and corundum partial size is 150 mesh in the ingredient of slurry B, and corundum partial size is 80 mesh in slurry C；
(2) substrate manufacture: slurry A is added into mold and forms filter layer A, the slurry B that feeds after dry forms filter layer B, so
It is put into the water channel mould 5 complementary with 2 shape of water channel layer afterwards, water channel mould indentation slurry B is made into engraving for water channel mould 5 using press box
Sky fills up slurry B, and slurry C is then added and forms filter layer C, adds the water channel mould 5 complementary with 2 shape of water channel layer, finally
It is added after the hollow out of slurry B filling water channel mould and forms filter layer B on 2 top of water channel layer, slurry A is added after dry and was formed
Filtering layer A, one-pass molding of pressurizeing；
(3) fire: stripper member after product room temperature after molding is conserved 12 hours is put into 60-80 DEG C of drying chamber and bakes 96
After hour, water channel mould 5 is melted at high temperature, and the slurry filled in the hollow out of water channel mould 5 forms support unit 4 through baking,
The gap that water channel mould 5 is formed after melting becomes water flow space, and it is small that the product baked is put 1300 DEG C of sintering oven sintering 96
When, drainpipe 3, positioning seat 7 and epoxy sealing glue-line 6 are installed after taking-up.
The water channel mould is made of polystyrene foam plastics material.
The corundum is Brown Alundum or white fused alumina.
By using the ingredient of aforementioned proportion range and once sintered molding is carried out using mold, and using different-grain diameter
Corundum controls the filtering pore size of each filter layer, to form gradient aperture, is effectively improved the apparent porosity of filtering plate face；
The double waterway structures for using Double-layer water channel layer simultaneously, effectively improve filter efficiency；By using the water channel that can melt at high temperature
Mold, disposable sinter molding, the process for eliminating die sinking modulus tool is at low cost, compared to it is more common need by water channel layer with
Filter layer carries out the technique of molding bonded, ensure that the water channel of filter plate and filtering plate face is smooth and thickness is uniform, make filter plate
Surface density is uniform, and intensity is high, effectively reduces the loss of material, reduces production cost, improves production efficiency, prolongs the service life.
Embodiment 2
A kind of preparation method of double water route Multi-layer composite ceramic filter plates, step includes: (1) ingredient: corundum: potassium is long
Stone: kaolin: water: adhesive: dispersing agent is formulated as slurry A, slurry B and slurry C according to 450:100:25:250:1:1 ratio
Slurry, wherein corundum partial size is sequentially increased in the ingredient of slurry A, slurry B and slurry C, corundum grain in the ingredient of the slurry A
Diameter is 180 mesh, and corundum partial size is 150 mesh in the ingredient of slurry B, and corundum partial size is 80 mesh in slurry C；
(2) substrate manufacture: slurry A is added into mold and forms filter layer A, the slurry B that feeds after dry forms filter layer B, so
It is put into the water channel mould 5 complementary with 2 shape of water channel layer afterwards, water channel mould indentation slurry B is made into engraving for water channel mould 5 using press box
Sky fills up slurry B, and slurry C is then added and forms filter layer C, adds the water channel mould 5 complementary with 2 shape of water channel layer, finally
It is added after the hollow out of slurry B filling water channel mould and forms filter layer B on 2 top of water channel layer, slurry A is added after dry and was formed
Filtering layer A, one-pass molding of pressurizeing；
(3) fire: stripper member after product room temperature after molding is conserved 12 hours is put into 60-80 DEG C of drying chamber and bakes 96
After hour, water channel mould 5 is melted at high temperature, and the slurry filled in the hollow out of water channel mould 5 forms support unit 4 through baking,
The gap that water channel mould 5 is formed after melting becomes water flow space, and it is small that the product baked is put 1300 DEG C of sintering oven sintering 96
When, drainpipe 3, positioning seat 7 and epoxy sealing glue-line 6 are installed after taking-up.
The water channel mould is made of polystyrene foam plastics material.
The corundum is Brown Alundum or white fused alumina.
By using the ingredient of aforementioned proportion range and once sintered molding is carried out using mold, and using different-grain diameter
Corundum controls the filtering pore size of each filter layer, to form gradient aperture, is effectively improved the apparent porosity of filtering plate face；
The double waterway structures for using Double-layer water channel layer simultaneously, effectively improve filter efficiency；By using the water channel that can melt at high temperature
Mold, disposable sinter molding, the process for eliminating die sinking modulus tool is at low cost, compared to it is more common need by water channel layer with
Filter layer carries out the technique of molding bonded, ensure that the water channel of filter plate and filtering plate face is smooth and thickness is uniform, make filter plate
Surface density is uniform, and intensity is high, effectively reduces the loss of material, reduces production cost, improves production efficiency, prolongs the service life.
Embodiment 3
A kind of preparation method of double water route Multi-layer composite ceramic filter plates, step includes: (1) ingredient: corundum: potassium is long
Stone: kaolin: water: adhesive: dispersing agent is formulated as slurry A, slurry B and slurry C according to 400:100:30:200:2:1 ratio
Slurry, wherein corundum partial size is sequentially increased in the ingredient of slurry A, slurry B and slurry C, corundum grain in the ingredient of the slurry A
Diameter is 180 mesh, and corundum partial size is 150 mesh in the ingredient of slurry B, and corundum partial size is 80 mesh in slurry C；
(2) substrate manufacture: slurry A is added into mold and forms filter layer A, the slurry B that feeds after dry forms filter layer B, so
It is put into the water channel mould 5 complementary with 2 shape of water channel layer afterwards, water channel mould indentation slurry B is made into engraving for water channel mould 5 using press box
Sky fills up slurry B, and slurry C is then added and forms filter layer C, adds the water channel mould 5 complementary with 2 shape of water channel layer, finally
It is added after the hollow out of slurry B filling water channel mould and forms filter layer B on 2 top of water channel layer, slurry A is added after dry and was formed
Filtering layer A, one-pass molding of pressurizeing；
(3) fire: stripper member after product room temperature after molding is conserved 12 hours is put into 60-80 DEG C of drying chamber and bakes 96
After hour, water channel mould 5 is melted at high temperature, and the slurry filled in the hollow out of water channel mould 5 forms support unit 4 through baking,
The gap that water channel mould 5 is formed after melting becomes water flow space, and it is small that the product baked is put 1500 DEG C of sintering oven sintering 96
When, drainpipe 3, positioning seat 7 and epoxy sealing glue-line 6 are installed after taking-up.
The water channel mould is made of polystyrene foam plastics material.
The corundum is Brown Alundum or white fused alumina.
By using the ingredient of aforementioned proportion range and once sintered molding is carried out using mold, and using different-grain diameter
Corundum controls the filtering pore size of each filter layer, to form gradient aperture, is effectively improved the apparent porosity of filtering plate face；
The double waterway structures for using Double-layer water channel layer simultaneously, effectively improve filter efficiency；By using the water channel that can melt at high temperature
Mold, disposable sinter molding, the process for eliminating die sinking modulus tool is at low cost, compared to it is more common need by water channel layer with
Filter layer carries out the technique of molding bonded, ensure that the water channel of filter plate and filtering plate face is smooth and thickness is uniform, make filter plate
Surface density is uniform, and intensity is high, effectively reduces the loss of material, reduces production cost, improves production efficiency, prolongs the service life.
Embodiment 4
A kind of preparation method of double water route Multi-layer composite ceramic filter plates, step includes: (1) ingredient: corundum: potassium is long
Stone: kaolin: water: adhesive: dispersing agent is formulated as slurry A, slurry B and slurry C according to 400:100:30:200:2:1 ratio
Slurry, wherein corundum partial size is sequentially increased in the ingredient of slurry A, slurry B and slurry C, corundum grain in the ingredient of the slurry A
Diameter is 180 mesh, and corundum partial size is 150 mesh in the ingredient of slurry B, and corundum partial size is 80 mesh in slurry C；
(2) substrate manufacture: slurry A is added into mold and forms filter layer A, the slurry B that feeds after dry forms filter layer B, so
It is put into the water channel mould 5 complementary with 2 shape of water channel layer afterwards, water channel mould indentation slurry B is made into engraving for water channel mould 5 using press box
Sky fills up slurry B, and slurry C is then added and forms filter layer C, adds the water channel mould 5 complementary with 2 shape of water channel layer, finally
It is added after the hollow out of slurry B filling water channel mould and forms filter layer B on 2 top of water channel layer, slurry A is added after dry and was formed
Filtering layer A, one-pass molding of pressurizeing；
(3) fire: stripper member after product room temperature after molding is conserved 10 hours is put into 60-80 DEG C of drying chamber and bakes 96
After hour, water channel mould 5 is melted at high temperature, and the slurry filled in the hollow out of water channel mould 5 forms support unit 4 through baking,
The gap that water channel mould 5 is formed after melting becomes water flow space, and it is small that the product baked is put 1300 DEG C of sintering oven sintering 96
When, drainpipe 3, positioning seat 7 and epoxy sealing glue-line 6 are installed after taking-up.
The water channel mould is made of polystyrene foam plastics material.
The corundum is Brown Alundum or white fused alumina.
By using the ingredient of aforementioned proportion range and once sintered molding is carried out using mold, and using different-grain diameter
Corundum controls the filtering pore size of each filter layer, to form gradient aperture, is effectively improved the apparent porosity of filtering plate face；
The double waterway structures for using Double-layer water channel layer simultaneously, effectively improve filter efficiency；By using the water channel that can melt at high temperature
Mold, disposable sinter molding, the process for eliminating die sinking modulus tool is at low cost, compared to it is more common need by water channel layer with
Filter layer carries out the technique of molding bonded, ensure that the water channel of filter plate and filtering plate face is smooth and thickness is uniform, make filter plate
Surface density is uniform, and intensity is high, effectively reduces the loss of material, reduces production cost, improves production efficiency, prolongs the service life.
Embodiment 5
A kind of preparation method of double water route Multi-layer composite ceramic filter plates, step includes: (1) ingredient: corundum: potassium is long
Stone: kaolin: water: adhesive: dispersing agent is formulated as slurry A, slurry B and slurry C according to 400:100:30:200:2:1 ratio
Slurry, wherein corundum partial size is sequentially increased in the ingredient of slurry A, slurry B and slurry C, corundum grain in the ingredient of the slurry A
Diameter is 180 mesh, and corundum partial size is 150 mesh in the ingredient of slurry B, and corundum partial size is 80 mesh in slurry C；
(2) substrate manufacture: slurry A is added into mold and forms filter layer A, the slurry B that feeds after dry forms filter layer B, so
It is put into the water channel mould 5 complementary with 2 shape of water channel layer afterwards, water channel mould indentation slurry B is made into engraving for water channel mould 5 using press box
Sky fills up slurry B, and slurry C is then added and forms filter layer C, adds the water channel mould 5 complementary with 2 shape of water channel layer, finally
It is added after the hollow out of slurry B filling water channel mould and forms filter layer B on 2 top of water channel layer, slurry A is added after dry and was formed
Filtering layer A, one-pass molding of pressurizeing；
(3) fire: stripper member after product room temperature after molding is conserved 14 hours is put into 60-80 DEG C of drying chamber and bakes 96
After hour, water channel mould 5 is melted at high temperature, and the slurry filled in the hollow out of water channel mould 5 forms support unit 4 through baking,
The gap that water channel mould 5 is formed after melting becomes water flow space, and it is small that the product baked is put 1300 DEG C of sintering oven sintering 96
When, drainpipe 3, positioning seat 7 and epoxy sealing glue-line 6 are installed after taking-up.
The water channel mould is made of polystyrene foam plastics material.
The corundum is Brown Alundum or white fused alumina.
By using the ingredient of aforementioned proportion range and once sintered molding is carried out using mold, and using different-grain diameter
Corundum controls the filtering pore size of each filter layer, to form gradient aperture, is effectively improved the apparent porosity of filtering plate face；
The double waterway structures for using Double-layer water channel layer simultaneously, effectively improve filter efficiency；By using the water channel that can melt at high temperature
Mold, disposable sinter molding, the process for eliminating die sinking modulus tool is at low cost, compared to it is more common need by water channel layer with
Filter layer carries out the technique of molding bonded, ensure that the water channel of filter plate and filtering plate face is smooth and thickness is uniform, make filter plate
Surface density is uniform, and intensity is high, effectively reduces the loss of material, reduces production cost, improves production efficiency, prolongs the service life.
Analysis of experimental data:
Experimental example: according to embodiment 1-5 ceramic filter plate produced.
Reference examples: the conventional ceramic filter plate of existing integral formation method production in market.
Above-described embodiment 1-5 is detected simultaneously with reference examples, as a result as follows:
1. light transmittance: according to Q/YF103-2000 standard, ceramic filter plate to be detected being placed on built-in 200w incandescent lamp
On the lamp box of bubble, the area of filter plate energy light transmission is measured with the square transparent plastic plate of uniformly distributed 5.0x5.0 grid；
2. apparent porosity: according to 1966 standard of GB/T；
3. flexural strength: according to 4741 standard of GB/T；
4. compression strength: according to 4740 standard of GB/T；
5. acidproof (alkali) corrosivity: according to 1970 standard of GB/T；
6. permeation rate: permeation rate is related with the viscosity of the pressure difference of filter plate two sides and water, is counted by following formula
Calculate permeation rate:
In formula-and permeation rate of the sample under certain pressure intensity difference, m3/m2.s；
Permeable amount of the sample under certain pressure difference, kg；
Time used in the permeable amount that sample obtains under certain pressure difference, s；
The water permeable area of filter plate, m2；
Density kg/m that test temperature is lauched3。
The device for carrying out water permeability test is as shown in Fig. 5, and water is added in upper shell, then will impregnate 4 in water
The filter plate sample of hour is clamped in experimental provision, opens bleeder valve, the quality of the water obtained in the record stipulated time.
7. attrition value test method: through friction steel wheel under rated condition effect, generating mill in filter plate specimen surface
Hole calculates the attrition value of filter plate with thickness after grinding before measurement grinding.
δ=δ1-δ2
δ-sample attrition value under prescribed conditions in formula, μm；
δ1Thickness before sample grinding, μm；
δ2Sample thickness after grinding, μm；
The steel wheel that rubs is reciprocating in specimen surface, it is specified that the steel wheel linear running speed that rubs is set past for 0.1m/s
Sample grinding thichness is measured after 500 times multiple.
Experimental data statistical form is as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Reference examples | |
| Light transmittance (%) | 96 | 95 | 96 | 96 | 69 | 95 |
| Apparent porosity (%) | 40.0 | 38.4 | 39.6 | 38.5 | 39.4 | 36 |
| Flexural strength (Mpa) | 42 | 39 | 41 | 40 | 41 | 35 |
| Compression strength (Mpa) | 54 | 50 | 52 | 50 | 51 | 41 |
| Acidproof (alkali) mass loss rate (%) | 1.1 | 1.5 | 1.0 | 1.2 | 1.3 | 2.0 |
| Permeation rate (m3/m2.s) | 2.1 | 1.9 | 1.9 | 2.0 | 2.1 | 1.8 |
| Attrition value (μm) | 0.04 | 0.06 | 0.04 | 0.05 | 0.04 | 0.08 |
As seen from the above table, the comparative analysis by embodiment 1-5 and reference examples concludes that and the existing city in reference examples
Ceramic filter plate comparison on field, the light transmittance and apparent porosity of the ceramic filter plate of the method according to the invention production are higher,
Flexural strength and compression strength are stronger, and acidproof (alkali) mass loss rate is lower, i.e., the ability of acidproof (alkali) is stronger, and permeation rate is more
Height, attrition value is lower, that is, wearability is higher, and the service life is longer.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Claims (10)
1. a kind of double water route Multi-layer composite ceramic filter plates, including substrate and drainpipe, the end of the substrate is arranged two and determines
Position seat, it is characterised in that: epoxy sealing glue-line is arranged in the side of the substrate and positioning seat installation place, and the substrate includes seven layers
Structure, seven-layer structure are the filter layer A being sequentially overlapped, filter layer B, water channel layer, filter layer C, water channel layer, filter layer B and filtering
Layer A, the seven-layer structure are disposable pressure sintering molding, and the water channel layer includes several support units, adjacent support
The gap that water supply stream passes through is set between unit, and the water channel layer is connected to filter layer C and filter layer B, and the nozzle of drainpipe is simultaneously
It is connected to filter layer C and water channel layer, the drainpipe is set as 2.
2. a kind of double water route Multi-layer composite ceramic filter plates according to claim 1, it is characterised in that: the filter layer A,
Filter layer B, filter layer C filtering hole be sequentially increased, the thickness of the filter layer A and filter layer B are 3mm, the filtering
The thickness of layer C and water channel layer is 6mm.
3. a kind of double water route Multi-layer composite ceramic filter plates according to claim 1, it is characterised in that: the water channel layer
Support unit cross sectional shape is strip or round or ellipse.
4. a kind of preparation method of double water route Multi-layer composite ceramic filter plates, it is characterised in that: its step includes: (1) ingredient: will
Corundum: potassium feldspar: kaolin: water: adhesive: dispersing agent is according to (400~450): 100:(25~30): (200~250): (1
~2): 1 ratio is formulated as the slurry of slurry A, slurry B and slurry C, wherein corundum grain in the ingredient of slurry A, slurry B and slurry C
Diameter is sequentially increased；(2) substrate manufacture: slurry A being added into mold and forms filter layer A, and the slurry B that feeds after dry forms filter layer B,
It is then placed in the water channel mould complementary with water channel layer shape, water channel mould indentation slurry B is made into engraving for water channel mould using press box
Sky fills up slurry B, then be added slurry C formed filter layer C, add the water channel mould complementary with water channel layer shape, finally plus
Enter after the hollow out of slurry B filling water channel mould and form filter layer B on water channel layer top, slurry A is added after dry and forms filtering
Layer A, one-pass molding of pressurizeing；(3) fire: stripper member after product room temperature after molding is conserved 10-14 hours is put into 60-80 DEG C
Drying chamber bake 96 hours after, water channel mould is melted at high temperature, and the slurry filled in the hollow out of water channel mould is formed through baking
Support unit, the gap that water channel mould is formed after melting become water flow space, the product baked are put 1100 DEG C of sintering oven-
1500 DEG C are sintered 96 hours, and drainpipe, positioning seat and epoxy sealing glue-line are installed after taking-up.
5. a kind of preparation method of double water route Multi-layer composite ceramic filter plates according to claim 4, it is characterised in that: institute
Stating corundum partial size in the ingredient of slurry A is 180 mesh, and corundum partial size is 120-150 mesh, corundum grain in slurry C in the ingredient of slurry B
Diameter is 30-80 mesh.
6. a kind of preparation method of double water route Multi-layer composite ceramic filter plates according to claim 4, it is characterised in that: institute
State corundum: potassium feldspar: kaolin: water: adhesive: the configuration proportion of dispersing agent are as follows: 400:100:30:200:2:1.
7. a kind of preparation method of double water route Multi-layer composite ceramic filter plates according to claim 4, it is characterised in that: institute
State corundum: potassium feldspar: kaolin: water: adhesive: the configuration proportion of dispersing agent are as follows: 450:100:25:250:1:1.
8. a kind of preparation method of double water route Multi-layer composite ceramic filter plates according to claim 4, it is characterised in that: the
(3) in step, it is small to put 1300 DEG C of sintering oven sintering 96 for stripper member after product room temperature after molding is conserved 12 hours after having baked
When.
9. a kind of preparation method of double water route Multi-layer composite ceramic filter plates according to claim 4, it is characterised in that: institute
Water channel mould is stated to be made of polystyrene foam plastics material.
10. a kind of preparation method of double water route Multi-layer composite ceramic filter plates according to claim 4, it is characterised in that:
The corundum is Brown Alundum or white fused alumina.
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| CN114634362B (en) * | 2022-04-12 | 2022-11-25 | 烟台核晶陶瓷新材料有限公司 | Boron carbide ceramic filter plate and preparation method thereof |
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