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CN106731240A - A kind of ceramic base effluent filter - Google Patents

A kind of ceramic base effluent filter Download PDF

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Publication number
CN106731240A
CN106731240A CN201710069383.1A CN201710069383A CN106731240A CN 106731240 A CN106731240 A CN 106731240A CN 201710069383 A CN201710069383 A CN 201710069383A CN 106731240 A CN106731240 A CN 106731240A
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parts
layer
filter
ceramic base
raw material
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CN106731240B (en
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陆小荣
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DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING CO LTD
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Wuxi Institute of Arts and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/20Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068Other inorganic materials, e.g. ceramics
    • B01D39/2093Ceramic foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10Filtering material manufacturing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

一种陶瓷基废水过滤器,由过滤层和脱滤层叠合后高温烧结而成,所述过滤层为朝向未过滤的废水方向的一层,所述脱滤层为朝向已过滤的净水方向的一层;所述过滤层由以下重量份数的原料组成:活性氧化铝:30~40份;煅烧高岭土:20~30份;锐钛矿型二氧化钛:20~35份;玻璃纤维:5~8份;蛭石:1~3份;所述脱滤层由以下重量份数的原料组成:普通氧化铝:40~50份;普通高岭土:20~30份;金红石型二氧化钛:10~15份;石英:5~10份;预处理后的石墨烯:3~5份。本发明制备得到的陶瓷过滤器具有双层构造,既容易正向吸附废水杂质,也容易反洗脱附,且脱附压力小,脱附效果好,大大提高了过滤水的效率。A ceramic-based wastewater filter, which is formed by laminating a filter layer and a defiltration layer and sintering at high temperature, the filter layer is a layer facing the direction of unfiltered wastewater, and the defiltration layer is a layer facing the direction of filtered clean water The filter layer is composed of the following raw materials in parts by weight: activated alumina: 30-40 parts; calcined kaolin: 20-30 parts; anatase titanium dioxide: 20-35 parts; glass fiber: 5-35 parts 8 parts; vermiculite: 1-3 parts; the defiltration layer is composed of the following raw materials in parts by weight: ordinary alumina: 40-50 parts; ordinary kaolin: 20-30 parts; rutile titanium dioxide: 10-15 parts ; Quartz: 5-10 parts; Graphene after pretreatment: 3-5 parts. The ceramic filter prepared by the present invention has a double-layer structure, is easy to positively adsorb impurities in waste water, and is also easy to backwash and desorb. The desorption pressure is small, the desorption effect is good, and the efficiency of filtering water is greatly improved.

Description

A kind of ceramic base effluent filter
Technical field
The present invention relates to water-treatment technology field, more particularly, to a kind of ceramic base effluent filter.
Background technology
Ceramic filter is the filtering material commonly used in water process.General running is:Allow under pressure useless Water is filtrated to get water purification by filter;After operation a period of time, be by backwash come polishing filter.Backwash is exactly right Filter applies the pressure in opposite direction come with waste water, allows water purification back through filter, and will build up in the filter is miscellaneous Matter is rinsed out.
Ceramic filter typically makes loose structure, so can more adsorb the impurity in waste water.But porous knot The ceramics of structure are easier in adsorbing contaminant, more difficult when backwash is desorbed, and are not only because a large amount of holes and are difficult to entirely Portion is uniformly subject to buffer brake to impact is desorbed impurity, but also because there is substantial amounts of work the hole inside of porous ceramics in itself Property surface group, after being combined by hydrogen bond or Van der Waals force with impurity be difficult disengage.Want to disengage hole surface and impurity it Between adhesion, it is necessary to increase buffer brake, the excessive easily direct internal structure of destruction porous ceramics of pressure makes its cracking collapse Collapse, it is impossible to be continuing with.
The content of the invention
In view of the above-mentioned problems existing in the prior art, the applicant provides a kind of ceramic base effluent filter.The present invention The ceramic filter for preparing has double-layer structural, both easily positive to adsorb waste water impurity, also easy backwash desorption, and desorption Pressure is small, and desorption effect is good, substantially increases the efficiency of filter water.
Technical scheme is as follows:
A kind of ceramic base effluent filter, high temperature sintering is formed after being overlapped by filter layer and de- filtering layer, and the filter layer is Towards one layer of unfiltered waste water direction, the de- filtering layer is a layer towards filtered water purification direction;
The filter layer is made up of the raw material of following parts by weight:
Activated alumina:30~40 parts;Calcined kaolin:20~30 parts;Anatase titanium dioxide:20~35 parts;Glass Glass fiber:5~8 parts;Vermiculite:1~3 part;Each raw material average grain diameter of the filter layer is 300~500 microns;
The de- filtering layer is made up of the raw material of following parts by weight:
Common aluminum oxide:40~50 parts;Common kaolin:20~30 parts;Rutile titanium dioxide:10~15 parts;Stone English:5~10 parts;Pretreated Graphene:3~5 parts;Each raw material average grain diameter of the de- filtering layer is 200~300 microns;
The method of the pretreating graphite alkene is:It is the ethoxy perhydro-s-triazine and graphite of Graphene 3~5% by quality Alkene adds the acetone soln that concentration is 1~2wt% together, and ultrasonic disperse 40~60 minutes, then dry in the case of stirring Into powder.
It is first each compressing after the filter layer and the respective raw material of de- filtering layer are well mixed respectively, then it is superimposed on one Rise by hot binding together;Calcined with reference to after.
The pressure of the hot pressing is 3~5Mpa, and temperature is 120~150 DEG C, and hot pressing time is 3~5 minutes.
When the filter layer and the respective raw material of de- filtering layer mix respectively, surfactant, binding agent, pore creating material are added And deionized water.
The surfactant is oleic acid, stearic acid, one kind of odium stearate.
The binding agent is methylcellulose or hydroxypropyl methyl cellulose.
The pore creating material is carbon dust, benzoic acid, phenolic resin ball or other conventional pore creating materials, and the particle diameter of the pore creating material is 10~20 microns.
With filter layer and the respective raw material weight of de- filtering layer and be an entirety, the surfactant is respectively the two The 1~2.5% of total quality, binding agent is respectively the 4~6% of the two total qualities, and pore creating material is respectively the two entirety The 10~25% of quality;Deionized water is respectively the 30~35% of the two total qualities.
The sintering temperature is 1250~1280 DEG C, and soaking time is 3~5 hours.
The present invention is beneficial to be had technical effect that:
Filter layer of the invention is the porous ceramic structure of conventional easy adsorbing contaminant, and de- filtering layer be then with filtering Layer is kept on the basis of basically identical chemical composition, has carried out drop activity treatment.First feature of de- filtering layer is micropore chi It is very little smaller than filter layer, can further prevent smaller size of impurity by filter, improve water purification ability.
Second feature is that activity is low, even if there is impurity to enter the micropore of de- filtering layer, cannot also produce hydrogen bond or model moral The combination of Hua Li;Pretreated Graphene is particularly with the addition of, its activity, the impurity in backwash process is greatly reduced Can be desorbed under the effect of small pressure, be backwashed water and be flushed in the micropore of filter layer;Swiftly flowing impurity impact filtration layer Micropore, serves the effect that physics washes away, and the pressure with backwash water combines, and absorption is acted in mistake equivalent to two parts of strength Impurity in the micropore of filtering layer, makes them faster, more thoroughly be backwashed away.
3rd feature be it is substantially similar to the crystal structure of filter layer, with the unified with nature of filter layer and it is tight, will not Because crystal formation suddenly change causes to produce clogging in two-layer junction.
Specific embodiment
With reference to embodiment, the present invention is specifically described.
Embodiment 1
A kind of ceramic base effluent filter, high temperature sintering is formed after being overlapped by filter layer and de- filtering layer, and the filter layer is Towards one layer of unfiltered waste water direction, the de- filtering layer is a layer towards filtered water purification direction;
The filter layer is made up of the raw material of following parts by weight:Activated alumina:30 parts;Calcined kaolin:20 parts;It is sharp Titanium ore type titanium dioxide:20 parts;Glass fibre:5 parts;Vermiculite:1 part;Each raw material average grain diameter of the filter layer is 300 micro- Rice;
The de- filtering layer is made up of the raw material of following parts by weight:Common aluminum oxide:40 parts;Common kaolin:20 parts;Gold Red stone-type titanium dioxide:10 parts;Quartz:5 parts;Pretreated Graphene:3 parts;Each raw material average grain diameter of the de- filtering layer It is 200 microns;
The method of the pretreating graphite alkene is:It is the ethoxy perhydro-s-triazine and Graphene of Graphene 3% by quality It is the acetone soln of 1wt% to add concentration together, and ultrasonic disperse 40 minutes, are then dried to powder in the case of stirring.
Specifically preparation method is:
(1) each raw material of filter layer is mixed, is subsequently adding surfactant, binding agent, pore creating material and deionized water It is well mixed;The surfactant is oleic acid, and the binding agent is methylcellulose, and the pore creating material is carbon dust, described to make The particle diameter of hole agent is 10 microns;
With the raw material weight of filter layer and be an entirety, the surfactant is the 1% of this total quality, is bonded Agent is the 4% of this total quality, and pore creating material is the 10% of this total quality;Deionized water is this total quality 30%.
(2) each raw material of de- filtering layer is mixed, is subsequently adding surfactant, binding agent, pore creating material and deionized water It is well mixed;The surfactant is oleic acid, and the binding agent is methylcellulose, and the pore creating material is carbon dust, described to make The particle diameter of hole agent is 10 microns;
To take off the raw material weight of filtering layer and be an entirety, the surfactant is the 1.5% of this total quality, is glued Knot agent is the 4.3% of this total quality, and pore creating material is the 12% of this total quality;Deionized water is this total quality 31.5%.
(3) it is filter layer and de- filtering layer is each compressing, then be superimposed together by hot binding together;Hot pressing Pressure is 3Mpa, and temperature is 150 DEG C, and hot pressing time is 5 minutes.Calcined with reference to after.
(4) it is put into calcining furnace through hot binding filter layer together and de- filtering layer and is sintered, sintering temperature is 1250 DEG C, Soaking time is 5 hours.
Embodiment 2
A kind of ceramic base effluent filter, high temperature sintering is formed after being overlapped by filter layer and de- filtering layer, and the filter layer is Towards one layer of unfiltered waste water direction, the de- filtering layer is a layer towards filtered water purification direction;
The filter layer is made up of the raw material of following parts by weight:Activated alumina:35 parts;Calcined kaolin:25 parts;It is sharp Titanium ore type titanium dioxide:30 parts;Glass fibre:6 parts;Vermiculite:2 parts;Each raw material average grain diameter of the filter layer is 400 micro- Rice;
The de- filtering layer is made up of the raw material of following parts by weight:Common aluminum oxide:45 parts;Common kaolin:25 parts;Gold Red stone-type titanium dioxide:12 parts;Quartz:8 parts;Pretreated Graphene:4 parts;Each raw material average grain diameter of the de- filtering layer It is 250 microns;
The method of the pretreating graphite alkene is:It is the ethoxy perhydro-s-triazine and Graphene of Graphene 4% by quality It is the acetone soln of 1.5wt% to add concentration together, and ultrasonic disperse 50 minutes, are then dried to powder in the case of stirring.
Specifically preparation method is:
(1) each raw material of filter layer is mixed, is subsequently adding surfactant, binding agent, pore creating material and deionized water It is well mixed;The surfactant is stearic acid, and the binding agent is hydroxypropyl methyl cellulose, and the pore creating material is benzene first Acid, the particle diameter of the pore creating material is 12 microns;
With the raw material weight of filter layer and be an entirety, the surfactant is the 1.5% of this total quality, is glued Knot agent is the 5% of this total quality, and pore creating material is the 18% of this total quality;Deionized water is this total quality 33%.
(2) each raw material of de- filtering layer is mixed, is subsequently adding surfactant, binding agent, pore creating material and deionized water It is well mixed;The surfactant is one kind of odium stearate, and the binding agent is methylcellulose, and the pore creating material is phenol Urea formaldehyde ball, the particle diameter of the pore creating material is 16 microns;
To take off the raw material weight of filtering layer and be an entirety, the surfactant is the 1.8% of this total quality, is glued Knot agent is the 5% of this total quality, and pore creating material is the 20% of this total quality;Deionized water is this total quality 32%.
(3) it is filter layer and de- filtering layer is each compressing, then be superimposed together by hot binding together;Hot pressing Pressure is 4Mpa, and temperature is 130 DEG C, and hot pressing time is 4 minutes.Calcined with reference to after.
(4) it is put into calcining furnace through hot binding filter layer together and de- filtering layer and is sintered, sintering temperature is 1260 DEG C, Soaking time is 4 hours.
Embodiment 3
A kind of ceramic base effluent filter, high temperature sintering is formed after being overlapped by filter layer and de- filtering layer, and the filter layer is Towards one layer of unfiltered waste water direction, the de- filtering layer is a layer towards filtered water purification direction;
The filter layer is made up of the raw material of following parts by weight:Activated alumina:40 parts;Calcined kaolin:30 parts;It is sharp Titanium ore type titanium dioxide:35 parts;Glass fibre:8 parts;Vermiculite:3 parts;Each raw material average grain diameter of the filter layer is 500 micro- Rice;
The de- filtering layer is made up of the raw material of following parts by weight:Common aluminum oxide:50 parts;Common kaolin:30 parts;Gold Red stone-type titanium dioxide:5 parts;Quartz:10 parts;Pretreated Graphene:5 parts;Each raw material average grain diameter of the de- filtering layer It is 300 microns;
The method of the pretreating graphite alkene is:It is the ethoxy perhydro-s-triazine and Graphene of Graphene 5% by quality It is the acetone soln of 2wt% to add concentration together, and ultrasonic disperse 60 minutes, are then dried to powder in the case of stirring.
Specifically preparation method is:
(1) each raw material of filter layer is mixed, is subsequently adding surfactant, binding agent, pore creating material and deionized water It is well mixed;The surfactant is odium stearate, and the binding agent is hydroxypropyl methyl cellulose, and the pore creating material is carbon Powder, the particle diameter of the pore creating material is 20 microns;
With the raw material weight of filter layer and be an entirety, the surfactant is the 2.5% of this total quality, is glued Knot agent is the 6% of this total quality, and pore creating material is the 25% of this total quality;Deionized water is this total quality 35%.
(2) each raw material of de- filtering layer is mixed, is subsequently adding surfactant, binding agent, pore creating material and deionized water It is well mixed;The surfactant is odium stearate, and the binding agent is hydroxypropyl methyl cellulose, and the pore creating material is carbon Powder, the particle diameter of the pore creating material is 20 microns;
To take off the raw material weight of filtering layer and be an entirety, the surfactant is the 2.2% of this total quality, is glued Knot agent is the 4.7% of this total quality, and pore creating material is the 22% of this total quality;Deionized water is this total quality 35%.
(3) it is filter layer and de- filtering layer is each compressing, then be superimposed together by hot binding together;Hot pressing Pressure is 5Mpa, and temperature is 120 DEG C, and hot pressing time is 3 minutes.Calcined with reference to after.
(4) it is put into calcining furnace through hot binding filter layer together and de- filtering layer and is sintered, sintering temperature is 1280 DEG C, Soaking time is 3 hours.
Test case 1:Performance test, the test result such as institute of table 1 are carried out to the ceramic wastewater filter that embodiment 2 is prepared Show.
Table 1
Filter layer De- filtering layer
Porosity (%) 68 75
Micro-pore diameter (micron) 60~90 20~40
Compression strength (MPa) 4.52 4.69
Test case 2:The effluent filter that the present invention is prepared, can as wastewater treatment equipment in intermediate filter ring Section.Flocculation treatment and coarse filtration first are carried out to waste water, impurity therein is changed into cotton-shaped, and wherein granularity will be more than 100 microns Contaminant filter fall, be left particle diameter less than 100 microns of impurity, cascade filtration is then carried out using this filter.
The filter prepared using embodiment 2 carries out cascade filtration to coating wastewater and sanitary sewage, before and after filtering Water index it is as shown in table 2.
Table 2

Claims (9)

1. a kind of ceramic base effluent filter, it is characterised in that high temperature sintering is formed after being overlapped by filter layer and de- filtering layer, described Filter layer is a layer towards unfiltered waste water direction, and the de- filtering layer is a layer towards filtered water purification direction;
The filter layer is made up of the raw material of following parts by weight:
Activated alumina:30~40 parts;Calcined kaolin:20~30 parts;Anatase titanium dioxide:20~35 parts;Glass fibers Dimension:5~8 parts;Vermiculite:1~3 part;Each raw material average grain diameter of the filter layer is 300~500 microns;
The de- filtering layer is made up of the raw material of following parts by weight:
Common aluminum oxide:40~50 parts;Common kaolin:20~30 parts;Rutile titanium dioxide:10~15 parts;Quartz:5 ~10 parts;Pretreated Graphene:3~5 parts;Each raw material average grain diameter of the de- filtering layer is 200~300 microns;
The method of the pretreating graphite alkene is:It is the ethoxy perhydro-s-triazine and Graphene one of Graphene 3~5% by quality The acetone soln for adding concentration to be 1~2wt% is acted, ultrasonic disperse 40~60 minutes, are then dried to powder in the case of stirring End.
2. ceramic base effluent filter according to claim 1, it is characterised in that the filter layer and de- filtering layer are respective It is first each compressing after raw material is well mixed respectively, then be superimposed together by hot binding together;Forged with reference to after Burn.
3. ceramic base effluent filter according to claim 2, it is characterised in that the pressure of the hot pressing is 3~5Mpa, Temperature is 120~150 DEG C, and hot pressing time is 3~5 minutes.
4. ceramic base effluent filter according to claim 2, it is characterised in that the filter layer and de- filtering layer are respective When raw material mixes respectively, surfactant, binding agent, pore creating material and deionized water are added.
5. ceramic base effluent filter according to claim 4, it is characterised in that the surfactant is oleic acid, tristearin Acid, one kind of odium stearate.
6. ceramic base effluent filter according to claim 4, it is characterised in that the binding agent be methylcellulose or Hydroxypropyl methyl cellulose.
7. ceramic base effluent filter according to claim 4, it is characterised in that the pore creating material be carbon dust, benzoic acid, Phenolic resin ball or other conventional pore creating materials, the particle diameter of the pore creating material is 10~20 microns.
8. ceramic base effluent filter according to claim 4, it is characterised in that with filter layer and the respective original of de- filtering layer Material weight and be an entirety, the surfactant is respectively the 1~2.5% of the two total qualities, and binding agent is respectively The 4~6% of the two total qualities, pore creating material is respectively the 10~25% of the two total qualities;Deionized water is respectively this Two the 30~35% of total quality.
9. the ceramic base effluent filter according to any one of claim 1~8, it is characterised in that the sintering temperature is 1250~1280 DEG C, soaking time is 3~5 hours.
CN201710069383.1A 2017-02-08 2017-02-08 A kind of ceramic base effluent filter Active CN106731240B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109224629A (en) * 2018-09-17 2019-01-18 江苏光天耐材科技有限公司 A kind of filter of dry process and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1155723A2 (en) * 2000-05-18 2001-11-21 Fleetguard, Inc. High temperature ceramic filter
CN101288815A (en) * 2007-04-16 2008-10-22 黄瑞中 High precision high flow rate micropore ceramic tube
CN202173845U (en) * 2011-08-11 2012-03-28 王建伟 Ceramic filter material for removing iron in steam condensate water at high temperature
CN102964124A (en) * 2011-01-07 2013-03-13 宜兴市鑫帝豪高科陶瓷厂 High-temperature gas-solid ceramic filter tube and preparation method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1155723A2 (en) * 2000-05-18 2001-11-21 Fleetguard, Inc. High temperature ceramic filter
CN101288815A (en) * 2007-04-16 2008-10-22 黄瑞中 High precision high flow rate micropore ceramic tube
CN102964124A (en) * 2011-01-07 2013-03-13 宜兴市鑫帝豪高科陶瓷厂 High-temperature gas-solid ceramic filter tube and preparation method
CN202173845U (en) * 2011-08-11 2012-03-28 王建伟 Ceramic filter material for removing iron in steam condensate water at high temperature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109224629A (en) * 2018-09-17 2019-01-18 江苏光天耐材科技有限公司 A kind of filter of dry process and preparation method thereof

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