CN107715574A - Ceramic filter plate and its production technology - Google Patents
Ceramic filter plate and its production technology Download PDFInfo
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- CN107715574A CN107715574A CN201711296841.1A CN201711296841A CN107715574A CN 107715574 A CN107715574 A CN 107715574A CN 201711296841 A CN201711296841 A CN 201711296841A CN 107715574 A CN107715574 A CN 107715574A
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- ceramic filter
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- 239000000919 ceramic Substances 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title abstract description 19
- 238000005516 engineering process Methods 0.000 title abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 104
- 239000002344 surface layer Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 15
- 239000000706 filtrate Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000005245 sintering Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 239000013618 particulate matter Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
- B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—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
- C04B35/10—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 aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1258—Permeability
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
- C04B2235/365—Borosilicate glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides a kind of ceramic filter plate and its production technology of new construction.Ceramic filter plate, including surface layer layer, it is characterised in that：The one side of surface layer layer is fixed with water channel layer, and the water channel layer includes several support units, the space passed through for the stream that supplies water is provided between adjacent support unit, and current can flow to surface layer layer by space.What the present invention innovated is merged water channel layer and bearing bed, enriches support unit in water channel layer, between support unit by high temperature sintering together.Filtering and anti-cleaning so for ceramic plate have preferable room for promotion, will lower the presence of particulate matter and the service life of ceramic plate in filtrate significantly.
Description
Technical field
The present invention relates to ceramic filter plate field, the change of specifically a kind of ceramic filter harden structure and its production technology.
Background technology
Ceramic filter plate belongs to a kind of energy saving environmental protection product, and it is widely used in such as iron, gold, silver, copper metallic ore masonry
The dehydration link of industry.Vital effect is played for energy-saving and emission-reduction.For use in most cases, ceramic filter plate
Feeding typically leave siccative, discharge filtrate.But some special industries are directed to, such as some chemical industries, its needs stay
Lower filtrate, then it just needs very high for the filtering requirement of ceramic plate.
Ceramic filter harden structure prepared by traditional handicraft is as shown in figure 1, be divided into following three parts：
Surface layer layer：Thickness general control is in 1mm or so.For main filtration zone, the filtering accuracy of ceramic filter plate depends on should
The aperture of layer and thickness.
Bearing bed：Thickness general control is in 11.5mm or so.It is overall to hold up surface layer layer for bearing area, while also play
Improve the function of ceramic filter plate bulk strength.Itself filtering accuracy to ceramic filter plate, does not work.
Water channel layer：For channel layer.Waterway channel is provided for filtering and anti-cleaning.
In current production link because chemical industry filtering accuracy is high, remaining residue granularity after filtering compared with
Carefully, ceramic plate is easily blocked in actual production link, has a strong impact on the service life of ceramic plate.This is because being cleaned counter
In link, bearing bed thickness is blocked up.In anti-cleaning process, water needs to get to surface layer layer by bearing bed, to being blocked in face
Particle layer by layer is counter to be cleaned.And bearing bed is blocked up, the cleaning of anti-rinse water opposite layer by layer will be weakened significantly.
In order to solve this problem, current scheme most preferably reduces the thickness of bearing bed, but the reduction of thickness can reduce
The bulk strength of ceramic plate.In order to solve this problem, we innovate the design for proposing that bearing bed and water channel layer combine together and thought
Road.
The content of the invention
The present invention solves the thickness of current ceramic filter plate bearing bed on the premise of ceramic filter plate bulk strength is ensured
The problem of blocked up influence anti-cleansing power, there is provided the ceramic filter plate and its production technology of a kind of new construction.
The technical scheme is that：
Ceramic filter plate, including surface layer layer, it is characterised in that：The one side of surface layer layer is fixed with water channel layer, and the water channel layer includes
Several support units, the space passed through for the stream that supplies water are provided between adjacent support unit, current can pass through space
Flow to surface layer layer.
Preferably, fixed form is sintering.
Preferably, the space between adjacent support unit can also make current parallel to surface layer laminar flow.
Preferably, the regular shape of the support unit or irregular, for example, spherical or cylindricality or cross or
Person's polyhedron.
Preferably, alignment up and down before and after the support unit.Tangent, phase between adjacent spherical support unit
Adjacent cylindrical support unit cylinder is tangent.
Preferably, a diameter of 5-8mm of spherical support unit.The support unit length of cylindricality is 5-25mm, diameter 5-
8mm, it is preferred that the support unit length of cylindricality is 20mm.
Preferably, the thickness 2-3mm of surface layer layer.
Preferably, the ceramic filter plate also includes third layer, and the water channel layer is fixed between surface layer layer and third layer,
Surface layer layer and the edge of third layer are tightly connected by seal.Preferably, third layer is surface layer layer or other did not had
Filter the material of function.
Pilot hole and/or water nozzle are provided with the ceramic filter plate.
The preparation method of ceramic filter plate, it is characterised in that：Comprise the following steps：
1】Raw material mixes, and prepares cast slurry and water channel layer slurry；
2】Support unit is prepared using water channel layer slurry；
3】Mould molding：Slurry will be poured into a mould to squeeze into mould, according to the suction time of mould, control the thickness of surface layer layer；
The support unit made is put into the one of surface of surface layer layer again, is provided between adjacent support unit for the stream that supplies water
The space passed through, current can be by spaces to surface layer laminar flow；
4】Drying forming, firing.
Preferably, step 1】Raw material mixing, be divided into two parts, portion is used as water channel layer slurry as cast slurry, portion；
Specifically, the raw material includes the following composition of parts by weight：：75 parts -80 parts of white fused alumina, 5 parts -12 parts of clay, potassium length
3 parts -5 parts of 10 parts -18 parts of stone, 20 parts -25 parts of boron glass and inorganic binder, 0.01 part of water reducer, 30 parts -40 parts of water.Raw material
40g-80g waterglass is added per 200kg and 20g -30g stabilizers are used as and pour slurry after composition mixing.
Preferably, step 2】Detailed process is：Raw material is well mixed, moisture is reduced to 8%-15%, it is single that support is made
Member, temperature control is at 40 DEG C -55 DEG C, and time control is in 2-4H.
Preferably, step 3】In, it will pour into a mould in the mould that slurry pressurization injection assembles.
It is an advantage of the invention that：
（1）What the present invention innovated is merged water channel layer and bearing bed, and support unit, support unit are enriched in water channel layer
Between by high temperature sintering together.Interstitial channels of the diameter in 4-5mm between support unit be present, the size of its passage than
Bearing bed originally（Micropore 50-60um）Aperture have lifting by a relatively large margin.Filtering so for ceramic plate and anti-clear
Washing has preferable room for promotion, will lower the presence of particulate matter and the service life of ceramic plate in filtrate significantly.
（2）When the support unit of the present invention is spherical, it is easy to realize 4-5mm current interstitial channels, production technology letter
It is single, reduce production difficulty.
（3）The present invention improves the thickness of surface layer layer to 2-3mm, the increase of thickness to the performance of ceramic plate bring it is following some
Advantage：
A. the wearability of surface layer layer is added,
B. the increase of thickness, the overall capillarity of surface layer will be greatly promoted, the overall energy consumption of equipment will be substantially reduced.
C. the increase of thickness, the filtering accuracy of increased product, the content of impurity in filtrate will greatly be reduced.
（4）The production technology of the present invention, reduce the production link of original ceramic plate.The production technology of original ceramic plate：It is overall
Shaping, overall firing, grinding machine shaping, film surface spray, film surface firing, sealing make.The present invention makes disposal molding into, disposably
Fire, carry out levelling production technology after firing again.The time cost and space cost fired are saved.Significantly lift ceramic plate
Production efficiency, improve the machine pressure factor such as ceramic plate structural instability.The ceramic filter plate of this technique productions is applied to chemical industry
Filtering, be advantageous to improve filtrate whole clearing degree, significantly lift requirement of some chemical industries to filtrate.
（5）Pressurization pours.The slurry prepared is injected using pressure.Simultaneously labor productivity is doubled it is more,
While increasing ceramic plate yield, novel ceramic filtering plate production technology will substantially improve the internal structure of ceramic plate, increase ceramic plate
Permeability.By certification, using new technology, the yield of ceramic plate will improve 15% than original.
Brief description of the drawings
Fig. 1 is ceramic filter plate shape assumption diagram produced by the invention；
Fig. 2 is ceramic filter plate sectional axonometric drawing produced by the invention (spherical support unit)；
Fig. 3 is ceramic filter plate section plan produced by the invention；
Fig. 4 is ceramic filter plate sectional axonometric drawing (cylindrical support member) produced by the invention
Fig. 5 is ceramic filter plate section plan in background technology.
Embodiment
Embodiment one
The present embodiment provides a kind of ceramic filter plate, including two layers of surface layer layer 1, and water channel layer, institute are fixed between two layers of surface layer layer
Stating water channel layer includes several support units 2, and the space 3 passed through for the stream that supplies water, water are provided between adjacent support unit
Stream can flow to surface layer layer by space.
Preferably, two layers of surface layer layer is by together with high temperature sintering with water channel layer.
Specifically, the shape of support unit includes but is not limited to spherical, adjacent spherical support unit as Figure 1-3
Between it is tangent, for front and rear alignment up and down into several layers of, the space between such support unit can not only make current direction face
Flow layer by layer, cleansing power of the current parallel to surface layer laminar flow, to greatest extent reservation current can also be made.Preferably, ball
A diameter of 5-8mm of the support unit of shape.The shape of support unit can also be cylindricality, such as cylinder, or section is just
The pentagon either column structure of regular hexagon or octagon, such as Fig. 4, two bottom surfaces of cylindrical support member respectively with
Surface layer layer is fixedly connected, and adjacent cylindrical support unit cylinder is tangent, it is preferred that cylindrical support unit length be 20mm,
Diameter 5-8mm.The shape of support unit can also be cross or regular polygon, for example, regular five-hedron or regular hexahedron
Deng.Preferably, interstitial channels of the diameter in 4-5mm between support unit be present, the size of its passage is than original bearing bed
（Micropore 50-60um）Aperture have lifting by a relatively large margin.
The edge of two layers of surface layer layer is tightly connected by seal 4, and the dress for installation is additionally provided with ceramic filter plate
Distribution 5 and the water nozzle 6 for cleaning.Sealed interface, pilot hole, water nozzle etc. can use material of the prior art and knot
Structure, it will not be described here.
Preferably, the thickness 2-3mm of surface layer layer.It increased compared to existing surface layer thickness degree.
Preferably, the raw material used in water channel layer can be identical with surface layer layer, so can be directly by water channel layer and surface layer layer
Firing links together.Water channel layer can also individually use other materials.
Embodiment two
The present embodiment provides a kind of production technology of ceramic filter plate, comprises the following steps that：
1】Raw material mix, raw material according to 75 parts -80 parts of 180 mesh white fused alumina of aggregate, 5 parts -12 parts of clay, 10 parts -18 parts of potassium feldspar,
20 parts -25 parts of boron glass and 3 parts -5 parts of inorganic binder, 0.01 part of water reducer, 30 parts -40 parts of water are put into ball mill together
Be pre-mixed 2 hours；It is divided into two parts after mixing；
By above-mentioned a copy of it slurry, it is put into according to 200kg portions in teeming ladle, while addition 40g- is needed according to mobility
80g waterglass and 20 g -30g stabilizers；Start and be stirred under vacuum equipment, uniform stirring 2H or so, depending on actual conditions.
Mixing speed control turns/min in 400-500, while opens vavuum pump, and the bubble inside slurry is discharged, vacuum degree control-
0.04MPa--0.05MPa or so.Using this slurry as pouring slurry.
Preferably, another above-mentioned slurry is directly squeezed into plate and frame filter press, the moisture of mud is reduced to 10% or so
（8-15%）, this slurry is as water channel layer slurry.
In this step, using material by wet type mixing.This moulding process will substantially improve working environment, reduce dust in air
Content, the labor intensity of shop worker is reduced, improve the batch mixing uniformity.
2】Water channel layer slurry is made to the support unit of spherical either cylindrical or cross or regular polygon：Use
Pug mill extrudes above-mentioned mud cake the water channel layer slurry pug mill of previous step, and then cutting is granulated, and is prepared into diameter 5-8mm's
Spherical support unit is in case use.Or mud cake is made in water channel layer slurry, above-mentioned mud cake is extruded using pug mill, cut into
Length is 20mm, the cylindrical support member into diameter 5mm-8mm.The support unit prepared is dried, is dried to table
Face slightly has intensity, and at 40 DEG C -55 DEG C, time control can't be dried excessively in 2-4H for general drying temperature control.
3】Mould molding：It will pour into a mould in the mould that slurry pressurization injection assembles.Slurry will be poured into a mould using compressed air to beat
Enter into gypsum mold, notice that pressure now will be controlled, control in 0.02-0.035mpa.The overall duration of pouring
Control is in 10 min -15min.Ensure that mould inside is integrally full of slurry, while carry out the mandatory moisture by inside sizing material and arrange
Go out.According to the suction time of mould, the thickness of surface layer layer is controlled；Again by the support unit made put into two layers surface layer layer it
Between, 1-2min or so is stood, remaining slurry in plaster mold is poured out.It is provided between adjacent support unit for supplying
The space that current pass through, current can be by spaces to surface layer laminar flow；It is tangent between adjacent spherical support unit, it is front and rear on
Bottom left Right Aligns is arranged in several layers of；The cylinder of two adjacent cylindrical support members is tangent, two cylindrical bottom surfaces difference
Contacted with surface layer layer；
Compressing technology is taken things easy dynamic low production efficiency in pressing annular, and in integral forming process, is easily caused in plate face
The defects of lower pressure is uneven, and density is big at water channel, and overall percent opening is uneven.The reason for because of barometric gradient, and this shaping
Mode can be more obvious aobvious for suppressing big plate, its undesirable element.In this step, using slip casing by pressure.By the slurry prepared profit
Injected with pressure in the gypsum mold assembled.Simultaneously labor productivity is doubled it is more, while ceramic plate yield is increased,
Novel ceramic filtering plate production technology will substantially improve the internal structure of ceramic plate, increase the permeability of ceramic plate.
4】Drying forming：Gypsum mold and product are placed on the top of the shelf after completing, drying room is put into and is dried, is dried
For dry temperature control at 60 DEG C -70 DEG C or so, the time is 3 days.The product dried, carries out Shape correction, and loading of kiln is fired.Fire
Carry out regrinding a link progress shaping into rear product, grind the size of actual product, stamping water nozzle and base pilot hole,
Install water nozzle and base.
Embodiment three
The present embodiment provides a kind of ceramic filter plate, including an aspect is layer by layer, and the one side of surface layer layer is fixed with water channel layer, the water
Channel layer includes some support units 2, is provided with the space 3 passed through for the stream that supplies water between adjacent support unit, and current can be with
Surface layer layer is flowed to by space.Fixed form between water channel layer and surface layer layer is sintering.
Preferably, the ceramic filter plate also includes third layer, and the water channel layer is fixed between surface layer layer and third layer,
Surface layer layer and the edge of third layer are tightly connected by seal.Third layer is the material without filtering function or is different from
Other of surface layer layer have the material of filtering function.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For the those of ordinary skill belonging to the present invention, this is not being departed from
On the premise of thinking of the present invention, simple deduction or replace can also be made, should all be considered as belonging to protection scope of the present invention.
Claims (10)
1. ceramic filter plate, including surface layer layer, it is characterised in that：The one side of surface layer layer is fixed with water channel layer, the water channel layer bag
Several support units are included, the space passed through for the stream that supplies water is provided between adjacent support unit, current can pass through sky
Clearance flow is to surface layer layer.
2. ceramic filter plate according to claim 1, it is characterised in that：Space between adjacent support unit can be with
Make current parallel to surface layer laminar flow.
3. ceramic filter plate according to claim 2, it is characterised in that：The support unit is spherical or cylindricality or ten
Font or polyhedron.
4. according to the ceramic filter plate described in claim 1 or 2 or 3, it is characterised in that：The thickness 2-3mm of surface layer layer.
5. ceramic filter plate according to claim 4, it is characterised in that：A diameter of 5-8mm of spherical support unit, post
The support unit length of shape is 5-25mm, diameter 5-8mm.
6. ceramic filter plate according to claim 5, it is characterised in that：The ceramic filter plate also includes third layer, institute
State water channel layer to be fixed between surface layer layer and third layer, the edge of surface layer layer and third layer is tightly connected by seal.
7. the preparation method of ceramic filter plate, it is characterised in that：Comprise the following steps：
1】Raw material mixes, and prepares cast slurry and water channel layer slurry；
2】Support unit is prepared using water channel layer slurry；
3】Mould molding：Slurry will be poured into a mould to squeeze into mould, according to the suction time of mould, control the thickness of surface layer layer；
The support unit made is put into the one of surface of surface layer layer again, is provided between adjacent support unit for the stream that supplies water
The space passed through, current can be by spaces to surface layer laminar flow；
4】Drying forming, firing.
8. the preparation method of ceramic filter plate according to claim 7, it is characterised in that：The raw material includes parts by weight
Following composition：75 parts -80 parts of white fused alumina, 5 parts -12 parts of clay, 10 parts -18 parts of potassium feldspar, 20 parts -25 parts of boron glass and inorganic
3 parts -5 parts of binding agent, 0.01 part of water reducer, 30 parts -40 parts of water；40g-80g waterglass is added per 200kg after material composition mixing
It is used as with 20g-30g stabilizers and pours slurry.
9. the preparation method of the ceramic filter plate according to claim 7 or 8, it is characterised in that：Step 2】Detailed process is：
Raw material is well mixed, moisture is reduced to 8%-15%, support unit is made.
10. the preparation method of ceramic filter plate according to claim 7, it is characterised in that：Step 3】In, slurry will be poured into a mould
In the mould that pressurization injection assembles.
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| CN201711296841.1A CN107715574A (en) | 2017-12-08 | 2017-12-08 | Ceramic filter plate and its production technology |
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| CN201711296841.1A CN107715574A (en) | 2017-12-08 | 2017-12-08 | Ceramic filter plate and its production technology |
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| CN109289299A (en) * | 2018-12-25 | 2019-02-01 | 烟台核晶陶瓷新材料有限公司 | A kind of double water route Multi-layer composite ceramic filter plates and preparation method thereof |
| CN110052067A (en) * | 2019-06-20 | 2019-07-26 | 烟台核晶陶瓷新材料有限公司 | A kind of ultra-thin ceramic filter plate, preparation method and the filter with the filter plate |
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