CN104475307B - A kind of Mechanical Method spray membrane process - Google Patents
A kind of Mechanical Method spray membrane process Download PDFInfo
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- CN104475307B CN104475307B CN201410629805.2A CN201410629805A CN104475307B CN 104475307 B CN104475307 B CN 104475307B CN 201410629805 A CN201410629805 A CN 201410629805A CN 104475307 B CN104475307 B CN 104475307B
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- ball milling
- spray film
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- 239000007921 spray Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010297 mechanical methods and process Methods 0.000 title claims abstract description 13
- 239000012528 membrane Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000000498 ball milling Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 11
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000011324 bead Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 239000010459 dolomite Substances 0.000 claims abstract description 10
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 10
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 10
- 239000011591 potassium Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 18
- 239000004927 clay Substances 0.000 claims description 9
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 239000010433 feldspar Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 9
- 239000012065 filter cake Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: bentonite: dolomite: feldspar powder: carbon element: potassium humate=(0.30 0.40): (0.33 0.38): (0.0457 0.055): (0.22 0.25): (0.00047 0.0007);Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 5 8kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: (0.1 0.2), spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.Therefore there is significant Social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of Mechanical Method spray membrane process.
Background technology
Filter is to utilize porous filter medium, retains liquid and the solid particle in solid particle mixture, and realizes the equipment that solid, liquid separates.Filter is widely used in the departments such as chemical industry, oil, pharmacy, light industry, food, ore dressing, coal and water process.Screen plate is the core component of ceramic filter.Using inorganic fenestra burning process, utilize capillary theory, form vacuum in plate, energy-conservation effectively separation by the moisture content in slurry is extracted, and is trapped on screen plate by the solid matter in slurry, then strikes off with scraper.
United States Patent (USP) 4863656 relates to a kind of method for manufacturing microwell plate, and discloses the screen plate obtained by the method and utilize the suction drier of this screen plate.The screen plate of this United States Patent (USP) 4863656 includes a pair relative jam wall, and this determines inner space between which to suction walls, and this inner space is full of granular materials.Suction drier apparatus includes at least one screen plate, and this screen plate is mounted to can enter and leave in basin or the like, and material to be dehydrated is arranged in this basin.In one embodiment, suction drier apparatus includes several screen plate, and these screen plates are mounted around the circular arrangement of rotary shaft.Negative pressure is applied in the suction walls of each plate, therefore, and water or the sucking-off from material to be dehydrated of other liquid, and pass through in the inner space in suction walls suction filter plate, then under suction function in sucking-off plate structure.
The about 0.1 bar absolute pressure that micro-porous filtration plate for capillary filter is designed to bear from filter cake manufacture and dry run changes to the continuous pressure of about 2.0 bar absolute pressures in backwash process.Plate allows for bearing the change of this pressure in circulation every time, it means that be of about the compression shock of 500,000 times every year.It is, therefore, apparent that the intensity of micro-porous filtration plate must be high, in order to make plate can use for many years under rather harsh environments.
United States Patent (USP) 5178777 relates to a kind of method for making filter cake take off when being pumped in filter cake, by the filtering surface of filter element, the liquid produced from capillary surface.In this United States Patent (USP) 5178777, on the filtering surface of filter element, form liquid film by the back-pressure by filter element effect, in order to produce the effect of backwashing to screen plate.Particularly, after just producing liquid film, at least one air-flow guides the filtering surface of filter element into, in order to the filter cake being separately positioned on filtering surface.
Except requirement of strength, optimal liquid flowing requires that interior substructure has the minimum pressure drop.This is critically important in the stage forming filter cake, but particular importance in backwash process.Backwash deficiently so that screen plate blocking is too fast, it reduce the performance of filter.And, when the filter plates are clogged, flow resistance increases, the dangerous increase of the impact damage that is under pressure.
Preferably, the screen plate for capillary filter includes: barrier film, and this barrier film has the hole that average cell size is of about 1 micron;And matrix, this matrix has hole that average cell size is of about 10 microns, the filtration/conduit that backwashes, filtration/backwash outlet/import and for the installing hole/hub being arranged on filter plant by screen plate.Taking out and backwashing capacity according to filtrate, this structure has sufficient intensity and good flow performance.But, when condition is by such high-pressure peak, need that there is higher intensity and the structure of optimal flow performance.The flow design optimized is not had to make screen plate inside produce uneven pressure distribution.Design and be optimized to the situation when the structure of the backwash pressure of maximum 2 bar absolute pressures can not be used for producing pressure peak, but this pressure makes to produce the stress being high enough to make plate rupture in plate.
There is presently no international standard and the national sector standard of screen plate, the domestic industry standard only having filter, carry out the quality of specification screen plate.And the theoretical research aspect designed and developed of screen plate relatively lags behind so that the performance of screen plate and practical effect are difficult to meet the requirement that client is the highest, such as: the using effect of screen plate and service life.In the mine ore dressing technique in past using formula filtering techniques more, owing to this process energy consumption is big, yield poorly, water resource utility model is big, and mine tailing moisture is big, takes up an area wide, and causes and deposit potential safety hazard.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=(0.30-0.40): (0.33-0.38): (0.0457-0.055): (0.22-0.25): (0.00047-0.0007);Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 5-8kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: (0.1-0.2), spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Barrier film and the matrix of the screen plate of the present invention are preferably manufactured from the same material, and only particle size is different.Barrier film and matrix can also be made from a different material.The screen plate of the present invention is preferably made up of at least one ceramic material, and such as aluminium oxide, carborundum, silicon dioxide, titanium dioxide, zirconium oxide and chromium oxide, they are sintered or glass is bonding.Other material such as graphite, amorphous carbon, sintering metal, plastics and cellulose can also use.And, the screen plate of the present invention can be used for conventional vacuum disc filters.
By adjusting the type selecting of the shape of substrate raw materials granularmetric composition and abrasive material, select high intensity, resistance to grinding, high rigidity and there is the abrasive material of high resistance to chemical attack carry out surface spray film and process, and optimize process combination further, make new product have: to improve the abrasion resistance of screen plate overall construction intensity and face;Improve the service life of screen plate;Product is raw materials used for inorganic solid overall, and without radiation toxic odor, sintering process uses natural gas to fire, and non smoke is discharged, without acid-alkali treatment and discharge in technique.
Detailed description of the invention
Embodiment 1
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=0.30: 0.33: 0.0457: 0.22: 0.00047;Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 5kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.1, spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Embodiment 2
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=0.40: 0.38: 0.055: 0.25: 0.0007;Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 8kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.2, spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Embodiment 3
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=0.2: 0.34: 0.0459: 0.24: (0.00047-0.0007);Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 6kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.2), spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Embodiment 4
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=0.30: 0.38: 0.055: 0.22: 0.00047;Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 7kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.2, spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Embodiment 5
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=(0.30-0.40): 0.37: 0.0457: 0.25: 0.0006;Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 5.3kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.15, spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Embodiment 6
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=0.3: 0.36: 0.0455: 0.24: 0.0007;Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 5-8kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.12, spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Embodiment 7
A kind of Mechanical Method spray membrane process, the preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon element: potassium humate=0.31: 0.37: 0.045: 0.21: 0.0005;Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, add 10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seal pin, side placing flat, ball milling opened pin after 24 hours, add white fused alumina abrasive micro-powder 10kg and 5-8kg water, after covering again ball milling 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry adjustment, virgin pulp liquid: water=1: 0.12, spray film device is made up of air compressor machine and spray gun, and pressure is adjusted to 0.5MPa.
Claims (1)
1. a Mechanical Method spray membrane process, it is characterised in that comprise the steps of,
The preparation of spray film adhesive: the weight ratio of each composition: zinc powder: clay: dolomite: potassium carbonate: carbon
Element: potassium humate=(0.30-0.40): (0.33-0.38): (0.0457-0.055): (0.22-0.25):
(0.00047-0.0007): 1;
Filming technology: with rotary mill, binding agent correct amount is positioned in pottery ball milling bottle, adds
10kg rustless steel or glass bead or Midst density mill ball, add 5kg water, seals pin, side placing flat, ball
Open pin after grinding 24 hours, add white fused alumina abrasive micro-powder 10kg and 5-8kg water, cover ball again
After grinding 10 hours, cross 300 mesh sieves standby, add water as required when implementing spray film and carry out concentration of slurry tune
Whole, virgin pulp liquid: weight ratio=1 of water: (0.1-0.2), spray film device is made up of air compressor machine and spray gun, pressure
It is adjusted to 0.5MPa.
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CN201410629805.2A CN104475307B (en) | 2014-11-10 | 2014-11-10 | A kind of Mechanical Method spray membrane process |
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CN201410629805.2A CN104475307B (en) | 2014-11-10 | 2014-11-10 | A kind of Mechanical Method spray membrane process |
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CN104475307A CN104475307A (en) | 2015-04-01 |
CN104475307B true CN104475307B (en) | 2016-09-14 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1605214A (en) * | 1973-01-08 | 1984-08-30 | Commissariat Energie Atomique | Method of and apparatus for producing tubular filter element |
US5059366A (en) * | 1986-10-10 | 1991-10-22 | Societe Des Ceramiques Techniques | Method of making a membrane filter |
WO2004087294A1 (en) * | 2003-03-31 | 2004-10-14 | Ngk Insulators, Ltd. | Base for honeycomb filter, method for producing same and honeycomb filter |
CN102010187A (en) * | 2010-10-01 | 2011-04-13 | 江苏省陶瓷研究所有限公司 | Ceramic membrane for porous ceramic filter pipe and modified preparation method thereof |
CN102633532A (en) * | 2012-04-10 | 2012-08-15 | 清华大学 | High-temperature and high-pressure inorganic filter membrane and preparation method thereof |
CN103193513A (en) * | 2013-04-16 | 2013-07-10 | 海南大学 | Coating method of silicon carbide ceramic membrane for high-temperature filtration |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2007260245B2 (en) * | 2006-06-14 | 2012-10-11 | Aqua-Nu Filtration Systems Limited | Ceramic filter |
US9878272B2 (en) * | 2010-05-28 | 2018-01-30 | Corning Incorporated | Porous inorganic membranes and method of manufacture |
-
2014
- 2014-11-10 CN CN201410629805.2A patent/CN104475307B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1605214A (en) * | 1973-01-08 | 1984-08-30 | Commissariat Energie Atomique | Method of and apparatus for producing tubular filter element |
US5059366A (en) * | 1986-10-10 | 1991-10-22 | Societe Des Ceramiques Techniques | Method of making a membrane filter |
WO2004087294A1 (en) * | 2003-03-31 | 2004-10-14 | Ngk Insulators, Ltd. | Base for honeycomb filter, method for producing same and honeycomb filter |
CN102010187A (en) * | 2010-10-01 | 2011-04-13 | 江苏省陶瓷研究所有限公司 | Ceramic membrane for porous ceramic filter pipe and modified preparation method thereof |
CN102633532A (en) * | 2012-04-10 | 2012-08-15 | 清华大学 | High-temperature and high-pressure inorganic filter membrane and preparation method thereof |
CN103193513A (en) * | 2013-04-16 | 2013-07-10 | 海南大学 | Coating method of silicon carbide ceramic membrane for high-temperature filtration |
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Inventor after: Ding Shun Inventor before: Hua Yuye |
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Effective date of registration: 20170317 Address after: 225509 Jiangsu, Jiangyan City, the town of the town of Industrial Park Patentee after: Jiangsu North tungsten new Mstar Technology Ltd Address before: Lake town of Xishan District 214000 Jiangsu city of Wuxi Province Green River Dang Village No. 11 Patentee before: Hua Yuye |