CN112973286A - Novel ceramic filter plate and manufacturing process thereof - Google Patents
Novel ceramic filter plate and manufacturing process thereof Download PDFInfo
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- CN112973286A CN112973286A CN202110341005.0A CN202110341005A CN112973286A CN 112973286 A CN112973286 A CN 112973286A CN 202110341005 A CN202110341005 A CN 202110341005A CN 112973286 A CN112973286 A CN 112973286A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 66
- 239000002344 surface layer Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000010453 quartz Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 9
- 239000004593 Epoxy Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000010431 corundum Substances 0.000 claims description 34
- 229910052593 corundum Inorganic materials 0.000 claims description 34
- 239000002002 slurry Substances 0.000 claims description 32
- 238000005245 sintering Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003431 cross linking reagent Substances 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
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- 230000008569 process Effects 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 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 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
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- 239000004743 Polypropylene Substances 0.000 claims description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 2
- 238000000498 ball milling Methods 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002585 base Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
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- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 239000000725 suspension Substances 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a novel ceramic filter plate and a manufacturing process thereof, belonging to the technical field of ceramic filter plates, and comprising a substrate, a positioning seat and a drain pipe, wherein the positioning seat is positioned at the end part of the substrate, and surface layers with the same size as the substrate are arranged on the upper surface and the lower surface of the substrate; the substrate and the surface layer are respectively manufactured in a gel injection molding mode, and the substrate and the surface layer are integrally sintered and molded; the side surfaces of the surface layer and the base plate and the installation position of the positioning seat are provided with epoxy sealing glue layers, the base plate comprises a plurality of supporting units, and a water path space of a sponge-like structure is formed inside the base plate. According to the novel ceramic filter plate and the manufacturing process thereof, the quartz fiber is added into the ingredients of the substrate and the surface layer, so that the strength and toughness of the novel ceramic filter plate can be effectively improved, the sponge-like structure in the substrate can effectively reduce the blocking probability, the filtering efficiency and the filtering effect are improved, and the service life of the filter plate is prolonged.
Description
Technical Field
The invention relates to a ceramic filter plate, in particular to a novel ceramic filter plate and a manufacturing process thereof, and belongs to the technical field of ceramic filter plates.
Background
The ceramic vacuum filter is used for separating solid and liquid in ore pulp, the filtering part of the existing ceramic vacuum filter is generally composed of 12 fan-shaped ceramic plates, water in the ore pulp is collected through micropores among the filtering media by utilizing the internal and external pressure difference of the filtering media, and fine particles are adsorbed on the outer surface of the filtering media to form a filter cake so as to realize solid-liquid separation. The high-efficiency energy-saving advantage of the ceramic vacuum filter mainly depends on the water-permeable and air-impermeable characteristics of the ceramic filter plate, so that the ceramic filter plate is the core of the ceramic filter equipment. At present, the ceramic filter plates in the prior art are of a plurality of types, and mainly comprise a microporous ceramic filter plate with a hollow structure, a bonding type ceramic filter plate and a water-cast molding ceramic filter plate.
(1) Hollow structure micropore ceramic filter: in order to ensure that the filter plate has enough mechanical strength, ceramic particles with small particle size are usually adopted, but micropores are too small at the same time, so that the water filtration resistance of the aluminum plate is increased, the two side walls are relatively thin, the strength is not large enough, the root of the filter plate is often cracked or even broken in the use process, in addition, the hollow support adopts particle support, the water drainage resistance is large, and the filtration efficiency and the yield are influenced;
(2) bonded ceramic filter plate: forming a partial pressure die, and bonding two pieces in a closing way to obtain a filter plate, wherein the process flow is as follows: the preparation method comprises the following steps of material preparation, film pressing and single sheet forming, bonding, sintering, plane processing and accessory assembling, so that the prepared filter plate has a longer production process flow and low production efficiency, and particularly, involutory bonding not only has low production efficiency, but also causes a plurality of defects: if the dosage of the adhesive and the bonding pressing force are not uniform, the base body can crack, and the excessive adhesive in the base body can generate rough protrusions on the side surfaces of the raised support ribs, so that water channels are occupied, and the drainage resistance is increased; secondly, the film pressing single sheet is in an asymmetric sheet structure with one surface coated with a raised support rib, deformation is easily caused in the drying and sintering process, the yield is not high, in addition, in the use process of a bonding product, poor bonding and cracking are easily caused, the fatigue strength of suction strain resistance is low, and the service life is shortened;
(3) water casting molding ceramic filter plate: the aqueous solution slurry is poured into a fixed mold, and the filter plate is formed by demolding, maintaining and firing, so that the prepared filter plate has certain requirements on the suspension property of the slurry, the uniformity of the substrate is poor, the hardness of the substrate of the filter plate is not enough after demolding, the filter plate can be fired after 96 hours of maintenance, and the time consumption is long.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects in the prior art and provides a novel ceramic filter plate and a manufacturing process thereof.
The technical scheme for solving the technical problems is as follows:
a novel ceramic filter plate comprises a substrate, a positioning seat and a drain pipe, wherein the positioning seat is positioned at the end part of the substrate, and surface layers with the same size as the substrate are arranged on the upper surface and the lower surface of the substrate; the substrate and the surface layer are respectively manufactured in a gel injection molding mode, and the substrate and the surface layer are integrally sintered and molded; the side surfaces of the surface layer and the base plate and the installation position of the positioning seat are provided with epoxy sealing glue layers, the base plate comprises a plurality of supporting units, and a water path space of a sponge-like structure is formed inside the base plate.
Furthermore, the filtration pores of the substrate and the surface layer are sequentially increased; the thickness of the substrate is 22mm, and the thickness of the surface layer is 1 mm.
Further, the facing layer is in communication with a base plate, which is in communication with a drain.
Still further, the drain pipes are provided in two.
A manufacturing process of a novel ceramic filter plate comprises the following steps:
step 1, preparation of a gel system: adopting a water-based acrylamide gel system, taking acrylamide as a monomer, N-N methylene bisacrylamide as a cross-linking agent and ammonium persulfate as an initiator, and mixing the components in parts by weight according to the following monomer: a crosslinking agent: initiator: water is (20-50): (1-3): (0.5-2): preparing a premixed solution according to the proportion of 400;
step 4, firing: and (3) putting the baked product into a sintering kiln at 1100-1500 ℃ for sintering for 96 hours, decomposing and melting the high molecular polymer in the substrate at high temperature, baking the residual slurry to form a supporting unit, forming a sponge-like space structure gap after decomposing and melting the high molecular polymer in the substrate to form a waterway space, taking out the ceramic filter plate after the integral sintering is finished, and installing a drain pipe, a positioning seat and an epoxy sealing adhesive layer.
Furthermore, the corundum particle diameter of the substrate is 120-150 meshes, and the corundum particle diameter of the surface layer is 180 meshes.
Further, the polymer in the substrate is one or more of polyethylene, polypropylene, polyvinyl chloride, polystyrene and acrylonitrile-butadiene-styrene copolymer.
Further, the quartz fiber has a purity of 99.95% and a diameter of 5 to 7 μm.
Further, the corundum is white corundum or brown corundum.
The invention has the beneficial effects that: the base plate and the surface layer which are prepared in a certain proportion range are respectively formed in one step by injection coagulation, so that the uniformity of the base plate and the surface layer is ensured; the strength and toughness of the ceramic filter plate can be effectively improved by adding quartz fibers into the ingredients of the substrate and the surface layer; the sponge-like structure in the substrate can effectively reduce the blocking probability, is easy to clean, improves the filtering efficiency and the filtering effect and prolongs the service life; the filter plate has the advantages of short forming period, good filtering effect and long service life, and meets the current market demand.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a substrate; 2. a surface layer; 3. a drain pipe; 4. a positioning seat.
Detailed Description
The principles and features of the present invention are described below in conjunction with the accompanying fig. 1, which is provided by way of example only to illustrate the present invention and not to limit the scope of the present invention.
A novel ceramic filter plate comprises a substrate 1, a positioning seat 4 and a drain pipe 3, wherein the positioning seat 4 is positioned at the end part of the substrate 1, and surface layers 2 with the same size as the substrate 1 are arranged on the upper surface and the lower surface of the substrate 1; the substrate 1 and the surface layer 2 are respectively manufactured in a gel-casting forming mode, so that the uniformity of the substrate 1 and the surface layer 2 is ensured, and the substrate 1 and the surface layer 2 are integrally sintered and formed; the side of surface course 2 and base plate 1 and the 4 installation departments of positioning seat are provided with epoxy sealing glue layer, including a plurality of support element in the base plate 1, the inside water route space that is formed with class sponge structure of base plate 1 can effectual reduction probability of jam, and it is simple to wash, improves filtration efficiency and filter effect, increase of service life.
The filtration pores of the substrate 1 and the surface layer 2 are sequentially increased to form gradient pore difference; the thickness of base plate 1 is 22mm, the thickness of surface course 2 is 1mm, and thinner filter plate face is favorable to improving filtration efficiency.
The surface layer 2 is communicated with the substrate 1, and the substrate 1 is communicated with the drain pipe 3. The drain pipes 3 are arranged in two numbers, so that the timely output of water flow is guaranteed, and the filtering efficiency is improved.
The working principle is as follows: during the use, pass through positioning seat 4 with above-mentioned ceramic filter and install on vacuum filter, when vacuum filter is rotatory, during ceramic filter immerges the ore pulp, moisture in the ore pulp gets into base plate 1 via ceramic filter's surface course 2 in proper order, and the water in the base plate 1 passes through drain pipe 3 and exports to the outside, and fine particle then adsorbs the surface formation filter cake that forms of ceramic filter and realizes solid-liquid separation.
Example one
A manufacturing process of a novel ceramic filter plate comprises the following steps:
(1) preparation of gel system: adopting a water-based acrylamide gel system, taking acrylamide as a monomer, N-N methylene bisacrylamide as a cross-linking agent and ammonium persulfate as an initiator, and mixing the components in parts by weight according to the following monomer: a crosslinking agent: initiator: the water content is 30: 2: 1: preparing a premixed solution according to the proportion of 400;
(2) preparation of substrate 1: mixing corundum: potassium feldspar: kaolin: adhesive: dispersing agent: quartz fiber: polyethylene was prepared according to a 500: 100: 20: 1: 1: adding the slurry into the premixed solution at a ratio of 45:100 to prepare slurry with the solid content of 75 percent as slurry of the substrate 1; injecting the slurry into a ceramic filter plate die A; putting the formed product into a water bath at 60 ℃ for curing for 30 minutes, then removing the mold, and curing the substrate 1 with the mold removed for 30 minutes at 80 ℃; the grain diameter of corundum in the substrate 1 is 120-150 meshes, and the corundum is white corundum or brown corundum;
(3) preparation of the surface layer 2: mixing corundum: water: water glass: charcoal powder: the quartz fiber was prepared according to the following formula 400: 100: 5: 2: 30 until the particle size is 7-8 microns, adding the mixture into the premixed solution to prepare slurry with the solid content of 75 percent as slurry of the surface layer 2; putting the prepared substrate 1 into a specific ceramic filter plate mold B; injecting the slurry of the surface layer 2 into a ceramic filter plate mould B, putting the formed product into a water bath at 60 ℃ for curing for 15 minutes, then removing the mould, and curing the filter plate with the mould removed for 30 minutes at 80 ℃; the grain diameter of corundum in the surface layer 2 is 180 meshes, and the corundum is white corundum or brown corundum;
(4) firing: and (3) putting the baked product into a sintering kiln at 1200 ℃ for sintering for 96 hours, decomposing and melting the high molecular polymer in the substrate 1 at high temperature, baking the residual slurry to form a supporting unit, and forming a space structure with a gap similar to a sponge after decomposing and melting the high molecular polymer, namely a waterway space. And after the integral sintering is finished, taking out the ceramic filter plate and then installing the drain pipe 3, the positioning seat 4 and the epoxy sealing glue layer.
Example two
A manufacturing process of a novel ceramic filter plate comprises the following steps:
(1) preparation of gel system: adopting a water-based acrylamide gel system, taking acrylamide as a monomer, N-N methylene bisacrylamide as a cross-linking agent and ammonium persulfate as an initiator, and mixing the components in parts by weight according to the following monomer: a crosslinking agent: initiator: the water content is 35: 2: 0.5: preparing a premixed solution according to the proportion of 400;
(2) preparation of substrate 1: mixing corundum: potassium feldspar: kaolin: adhesive: dispersing agent: quartz fiber: polystyrene was prepared according to a 500: 100: 25: 1: 2: 40: adding the mixture into the premixed solution at a ratio of 120 to prepare slurry with the solid content of 78 percent as slurry of the substrate 1; injecting the slurry into a ceramic filter plate die A; putting the formed product into a water bath at 60 ℃ for curing for 30 minutes, then removing the mold, and curing the substrate 1 with the mold removed for 30 minutes at 80 ℃; the grain diameter of corundum in the substrate 1 is 120-150 meshes, and the corundum is white corundum or brown corundum;
(3) preparation of the surface layer 2: mixing corundum: water: water glass: charcoal powder: quartz fiber the mass ratio was as follows 450: 100: 8: 2: 40 until the grain diameter is 7-8 microns, adding the ball-milled mixture into the premixed solution to prepare slurry with the solid content of 78 percent as slurry of the surface layer 2; putting the prepared substrate 1 into a specific ceramic filter plate mold B; injecting the slurry of the surface layer 2 into a ceramic filter plate mould B, putting the formed product into a water bath at 60 ℃ for curing for 15 minutes, then removing the mould, and curing the filter plate with the mould removed for 30 minutes at 80 ℃; the grain diameter of corundum in the surface layer 2 is 180 meshes, and the corundum is white corundum or brown corundum;
(4) firing: and (3) putting the baked product into a sintering kiln at 1350 ℃ for sintering for 96 hours, decomposing and melting the high molecular polymer in the substrate 1 at high temperature, baking the residual slurry to form a supporting unit, forming a gap into a waterway space after decomposing and melting the high molecular polymer, forming a sponge-like spatial structure inside the supporting unit, taking out the ceramic filter plate after the integral sintering is finished, and installing the drain pipe 3, the positioning seat 4 and the epoxy sealing adhesive layer.
Analysis of Experimental data
Carry out luminousness, apparent porosity, rupture strength, compressive strength, acid and alkali resistance mass loss rate, permeable rate, wearing and tearing value to novel ceramic filter and detect to compare with the ceramic filter of standard, the contrast result is as follows:
TABLE 1
| Example 1 | Experimental example 2 | Comparative example | |
| Light transmittance (%) | 96 | 96 | 94 |
| Apparent porosity (%) | 40 | 41 | 36 |
| Breaking strength (Mpa) | 41 | 40 | 35 |
| Compressive strength (Mpa) | 49 | 48 | 41 |
| Acid (alkali) resistance mass loss rate (%) | 1.2 | 1.4 | 2.0 |
| Rate of water penetration (m)3/m2s) | 2.2 | 2.4 | 1.8 |
| Abrasion value (μm) | 0.06 | 0.06 | 0.08 |
As can be seen from the drawings, the comparative analysis of examples 1-2 with the comparative example leads to the conclusion that: compared with the ceramic filter plate on the existing market in the comparison example, the ceramic filter plate produced by the method has higher light transmittance and apparent porosity, stronger breaking strength and compressive strength, lower acid (alkali) resistant quality loss rate, namely stronger acid (alkali) resistant capability, higher water permeation rate, lower abrasion value, namely higher abrasion resistance and longer service life.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a novel ceramic filter, includes base plate (1), positioning seat (4) and drain pipe (3), positioning seat (4) are located the tip of base plate (1), its characterized in that: the upper surface and the lower surface of the substrate (1) are provided with surface layers (2) with the same size as the substrate (1); the substrate (1) and the surface layer (2) are respectively manufactured in a gel casting mode, and the substrate (1) and the surface layer (2) are integrally sintered and molded; the side of surface course (2) and base plate (1) is provided with epoxy sealant layer with positioning seat (4) installation department, including a plurality of support unit in base plate (1), the inside water route space that is formed with class sponge structure of base plate (1).
2. The novel ceramic filter plate according to claim 1, wherein: the filtration pores of the substrate (1) and the surface layer (2) are sequentially increased; the thickness of base plate (1) is 22mm, the thickness of surface course (2) is 1 mm.
3. The novel ceramic filter plate according to claim 1, wherein: the surface layer (2) is communicated with the substrate (1), and the substrate (1) is communicated with the drain pipe (3).
4. The novel ceramic filter plate according to claim 1, wherein: the number of the drain pipes (3) is two.
5. A process for manufacturing a novel ceramic filter plate according to claims 1 to 4, comprising the steps of:
step 1, preparation of a gel system: adopting a water-based acrylamide gel system, taking acrylamide as a monomer, N-N methylene bisacrylamide as a cross-linking agent and ammonium persulfate as an initiator, and mixing the components in parts by weight according to the following monomer: a crosslinking agent: initiator: water is (20-50): (1-3): (0.5-2): preparing a premixed solution according to the proportion of 400;
step 2, manufacturing the substrate (1): mixing corundum: potassium feldspar: kaolin: adhesive: dispersing agent: quartz fiber: the high molecular polymer is prepared from (500-550): 100: (20-30): (1-2): 1: (40-50): (100-150) proportionally adding the slurry into the premixed liquid to prepare slurry with the solid content of 70-80 percent as the slurry of the substrate (1); injecting the slurry into a ceramic filter plate mold A added with a specific water channel mold; putting the formed product into a water bath at 60 ℃ for curing for 20-30 minutes, then removing the mold, and curing the substrate (1) with the mold removed for 30-40 minutes at 80 ℃;
step 3, manufacturing the surface layer (2): mixing corundum: water: water glass: charcoal powder: the quartz fiber is prepared from (400-500): 100: (5-10): 2: (30-40) ball-milling the mixture according to the proportion until the particle size is 7-8 microns, and adding the mixture into the premixed solution to prepare slurry with the solid content of 70-80% as slurry of the surface layer (2); putting the prepared substrate (1) into a specific ceramic filter plate mould B; injecting the slurry of the surface layer (2) into a ceramic filter plate mould B, putting the formed product into a water bath at 60 ℃ for curing for 10-15 minutes, then removing the mould, and curing the filter plate with the mould removed for 15-30 minutes at 80 ℃;
step 4, firing: and (3) putting the baked product into a sintering kiln at 1100-1500 ℃ for sintering for 96 hours, decomposing and melting the high molecular polymer in the substrate (1) at high temperature, baking the residual slurry to form a supporting unit, forming a sponge-like space structure gap after decomposing and melting the high molecular polymer in the substrate to form a waterway space, taking out the ceramic filter plate after the integral sintering is finished, and installing the drain pipe (3), the positioning seat (4) and the epoxy sealant layer.
6. The manufacturing process of the novel ceramic filter plate according to claim 5, wherein: the corundum particle size in the substrate (1) is 120-150 meshes, and the corundum particle size in the surface layer (2) is 180 meshes.
7. The manufacturing process of the novel ceramic filter plate according to claim 5, wherein: the polymer in the substrate (1) is one or more of polyethylene, polypropylene, polyvinyl chloride, polystyrene and acrylonitrile-butadiene-styrene copolymer.
8. The manufacturing process of the novel ceramic filter plate according to claim 5, wherein: the purity of the quartz fiber is 99.95%, and the diameter of the quartz fiber is 5-7 mu m.
9. The manufacturing process of the novel ceramic filter plate according to claim 6, wherein: the corundum is white corundum or brown corundum.
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| CN202110341005.0A CN112973286A (en) | 2021-03-30 | 2021-03-30 | Novel ceramic filter plate and manufacturing process thereof |
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| CN202110341005.0A CN112973286A (en) | 2021-03-30 | 2021-03-30 | Novel ceramic filter plate and manufacturing process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248239A (en) * | 2021-06-18 | 2021-08-13 | 烟台核晶陶瓷新材料有限公司 | Injection-condensation-molded quartz ceramic roller and manufacturing method thereof |
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