CN101791494A - Defoaming method adopting porous ceramics - Google Patents
Defoaming method adopting porous ceramics Download PDFInfo
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- CN101791494A CN101791494A CN 201010152892 CN201010152892A CN101791494A CN 101791494 A CN101791494 A CN 101791494A CN 201010152892 CN201010152892 CN 201010152892 CN 201010152892 A CN201010152892 A CN 201010152892A CN 101791494 A CN101791494 A CN 101791494A
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Abstract
The invention belongs to the technical fields of chemical engineering production, civil production and living, and relates to a defoaming method adopting porous ceramics. The method is characterized in that: the porous ceramics which are subjected to hydrophobic treatment and have an aperture smaller than the diameter of foams are adopted; the placement mode is selected according to the orientation for generating the foams and the flowing direction of fluid, so that the foams are torn and broken in the process of flowing and running through the porous ceramics; and finally the defoaming is realized. The method adopts the defoaming mode, can fully realize that the foams are torn and broken in the process of running through the porous ceramics, and finally realizes defoaming. The technology has universal applicability in the fields with defoaming requirement in production and living, is safe and environment-friendly, and has low cost and convenient and simple operation.
Description
Technical field
The invention belongs to Chemical Manufacture, civilian production and life technical field, particularly all kinds of solution or fluid solution inner generation bubble or surface produce the field that a large amount of foams need be eliminated.
Background technology
In Chemical Manufacture and civilian processing field, in heat exchange evaporation, polymer manufacture, petroleum refining, paint of coating production and application, pulping and paper-making, textile printing and dyeing, food processing, medicine medical treatment, sugaring, fermentation, plating, ore dressing, family and processes such as industrial washing, water and wastewater treatment, usually run into and do not wish the bubble-related issues that occur, the existence of foam is given and is produced and process and caused tremendous influence, must eliminate.
Tradition research and production practices show, existing physical defoaming method such as settled process, and the decompression method, temperature-raising method, mechanical mixing method, supercritical ultrasonics technology and fluid gunite etc. are because the physical method defoaming effectiveness is lower, and industrial difficult realization, so adopt few.
And the conventional chemical debubbling method as: add model opposite surfaces activating agent; Add the material that reacts with foam stabilizer; Add the material that makes foam stabilizer cohesion or precipitation, change change pH values or, utilize the solubility of common ion effect and salting out, change foam stabilizer with salt; Add dissimilar defoamers.
First three plants chemical method owing to there is the problem of corrosion and blocking pipe, also seldom uses, and industrial debubbling method commonly used is to utilize defoamer to carry out froth breaking.
Chemical defoamer is no matter destroy the stability of foam in which way, and it is interior and sprawl on the interface, disperse at first must spontaneously to enter liquid film, could change the interface performance of liquid film, finally causes breaking of film.Because the various variety classes solution of design in producing, the foam kind and the characteristic that are produced are different, and the foam for different fluids or solution generation needs the different types of defoamer of exploitation.And in some production and process, the introducing of defoamer can influence the performance of product, and the use of simultaneously a large amount of defoamers has increased production cost.
In sum, in Chemical Manufacture, civilian production and the sphere of life, still there is not froth breaking technology at present with general applicability.
Summary of the invention
The objective of the invention is to solve present technical problem, a kind of debubbling method that adopts porous ceramics is provided, physical defoaming, method is simple, and effect is good, non-secondary pollution.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of debubbling method that adopts porous ceramics, employing is through hydrophobic treatment, and the aperture is less than the porous ceramics of foam diameter, according to the orientation and the fluid flow direction that produce foam, mode is laid in selection, make that foam is torn, fragmentation in the process that flows, passes porous ceramics, finally realize froth breaking.
The mode of laying of described porous ceramics has: (1) solution is heated or reacts comparatively violent, and foam results from the solution top in a large number, and porous ceramic bodies is placed in foam stream siphunculus road, solution top; (2) solution is heated or reacts comparatively and to relax, and foam results from solution inside, and porous ceramics is placed in the pipeline that solution passes through; (3) solution is heated or reacts extremely violent, foam produces, is gathered in the solution top in a large number, adopt multi-layer porous ceramic body to be placed in foam stream siphunculus road, solution top, when foam can not be eliminated in how empty ceramic body duct fully, produce and amount of cancellation according to foam, porous ceramic bodies adopts different rates to rotate forward or backwards.
The mode of laying of described pottery according to the generation and the elimination situation of foam in the actual condition, adopts double-deck or multi-layer porous pottery stack to lay.
What described porous ceramics was suitable for has: 1. high siliceous silicate material porous ceramics: with hard pitchers, acid-proof ceramics slag and other acidproof synthesize ceramic particles is that aggregate makes; 2. aluminosilicate material porous ceramics: with fire-clay grog, to burn alumina, sillimanite and mullite synthesizing matter particle is that aggregate makes; 3. quiet ceramic material porous ceramics: mix to obtain the micropore ceramics material and make with multiple grog particle with clay etc.; 4. diatomaceous material porous ceramics: be raw material mainly, add vitrified bond and form with the Primary Study of Choosing Diatomite; 5. pure carbon material porous ceramics: with low ash coal or the burnt particle of asphalt, perhaps add part graphite, fire with the diluted tar bonding and form; 6. corundum and diamond dust material porous ceramics: electro-corundum and silicon-carbide particle with different model are aggregate; 7. cordierite, material of aluminum titanate porous ceramics; The perhaps 8. material porous ceramics that constitutes of other industrial wastes, mine tailing and quartz glass or simple glass.
The following processing mode of surface-hydrophobicized employing of described porous ceramics: (1) according to the kind and the composition of porous ceramics, chooses the Different Silicon alkanes water-repelling agent hydrophobization that comes to the surface and handles; (2) manually make the porous ceramics super hydrophobic surface: (3) carry out surface-hydrophobicized processing by hydro-thermal method; (4) the nano silicon method is carried out surface-hydrophobicized processing.
Described (2) manually make the porous ceramics hydrophobic surface is to adopt the low-surface-energy material to modify the porous ceramics rough surface.
Described (4) nano silicon method is carried out surface-hydrophobicized processing, be by being scattered in the alcohol solvent under the effects such as coupling agent such as acetoacetate aluminium with nano silicon, centrifugal being spin-coated on the porous ceramic surface of dispersion liquid obtains hydrophobic surface through high-temperature calcination, and finishing such as surface modification agent such as PFO base dimethoxy silane can obtain the porous ceramics super hydrophobic surface again.
The present invention adopts the porous ceramics through hydrophobic treatment to carry out froth breaking, and foam is torn in flowing, pass the porous ceramics process, fragmentation, finally realizes froth breaking.The present invention according to the generation of the foam that produces, produce speed, characteristic and foam size, can select the porous ceramics in relation between the different aperture or different apertures for use; According to the orientation and the fluid flow direction that produce foam, optional majority hole ceramic body is placed in foam stream siphunculus road, solution top, multi-layer porous ceramic body is placed in foam stream siphunculus road, solution top, porous ceramic bodies adopts different rates to rotate forward or backwards, the ceramic body spacing of holding concurrently is placed in solution inside according to foam adjustable size, porous ceramics, makes solution pass through the pipeline of filling porous pottery.Adopt froth breaking mode of the present invention, can realize fully that not only foam is torn, fragmentation when passing the duct of porous ceramics, and pottery itself is pollution-free, can not cause secondary pollution, compliance with environmental protection requirements, and also easy to operate simple, security of operation.The present invention is with low cost, has general applicability for the field that the froth breaking demand is arranged in production and the life.
Description of drawings
Fig. 1 is the porous ceramics mounting means schematic diagram that bubble results from the solution top in a large number.
Fig. 2 is the porous ceramics mounting means schematic diagram that bubble results from the solution content in a large number.
Fig. 3 is multi-layer porous pottery rotation mounting means schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail, but the present invention is not limited to specific embodiment.
Embodiment 1
Solution is heated or reacts comparatively violent, foam results from the solution top in a large number, the a large amount of foams that produced as solution evaporation process in the tubular heat exchanger, employing is through hydrophobic treatment, and the aperture is placed in porous ceramics 1 in the foam stream siphunculus road, solution 3 top less than the porous ceramics of foam diameter, as shown in Figure 1, constantly produce at foam 2, in the uphill process,, make that foam is torn, fragmentation by porous ceramics.
Wherein the porous ceramics of Cai Yonging can be selected relation or different bore diameter porous pottery between the different aperture for use according to the characteristic and the foam size of the foam that produces, and the aperture is less than foam diameter; According to solution properties, as Acidity of Aikalinity, corrosivity etc., can select the unlike material porous ceramics, the porous ceramics that is suitable in this example has 1. high siliceous silicate material porous ceramics: be aggregate with hard pitchers, acid-proof ceramics slag and other acidproof synthesize ceramic particles, have resistance to water and acid resistance, serviceability temperature reaches 700 ℃; 2. aluminosilicate material porous ceramics: with fire-clay grog, to burn alumina, sillimanite and mullite synthesizing matter particle is aggregate, has acid resistance and weak acid resistant, serviceability temperature reaches more than 1000 ℃; 3. quiet ceramic material porous: form near first kind of material, mix obtaining the micropore ceramics material with multiple grog particle and clay etc.
The surface-hydrophobicized processing of porous ceramics can adopt the silanes water-repelling agent hydrophobization that comes to the surface to handle, the rough surface porous ceramics.
Embodiment 2
Solution is heated or reacts comparatively and relax, foam 2 results from solution 3 inside, produce as solution in the processes such as ore dressing, water and wastewater treatment is inner, the too stable bubble that needs elimination that perhaps adds, this class bubble can not overflow liquid level in a large number, can influence the stability of solution but exist in solution, reduce treatment effect.Employing is through hydrophobic treatment, and the aperture is installed in solution 3 inside less than the porous ceramics of foam diameter with porous ceramics 1, as shown in Figure 2, make solution pass through the pipeline of filling porous pottery, in the solution bubble when passing the duct of porous ceramics, tear, fragmentation, finally realize froth breaking.
Wherein the porous ceramics of Cai Yonging can be selected relation or different bore diameter porous pottery between the different aperture for use according to the characteristic and the foam size of the foam that produces, and the aperture is less than foam diameter; According to solution properties, as Acidity of Aikalinity, corrosivity etc., can select the unlike material porous ceramics, the porous ceramics that is suitable in this example has 4. diatomaceous material: mainly be raw material with the Primary Study of Choosing Diatomite, add vitrified bond to form, be used for smart drainage and acid medium; 5. pure carbon material: with low ash coal or the burnt particle of asphalt, perhaps add part graphite, fire with the diluted tar bonding and form, be used for water-fast, cold and hot strong acid, cold and hot highly basic medium and air sterillization, filtration etc.; 6. corundum and diamond dust material: electro-corundum and silicon-carbide particle with different model are aggregate, have anti-strong acid, high-temperature stability, and heatproof can reach 1600 ℃.
The porous ceramic surface hydrophobization handle to adopt the nano silicon method in this example: with nano silicon by being scattered in the alcohol solvent under the effects such as coupling agent such as acetoacetate aluminium, centrifugal being spin-coated on the porous ceramic surface of dispersion liquid obtains hydrophobic surface through high-temperature calcination, and finishing such as surface modification agent such as PFO base dimethoxy silane can obtain the porous ceramics super hydrophobic surface again.
Embodiment 3
Solution is heated or reacts extremely violent, foam produces in a large number, be gathered in the solution top, as have certain viscosity solution evaporation process and (evaporate as waste water, crude oil HTHP dehydration etc.) a large amount of foams that produced in, employing is through hydrophobic treatment, and the aperture is less than the porous ceramics of foam diameter, porous ceramics 1 multilayer is placed in foam stream siphunculus road, solution 3 top, the operating mode that in how empty ceramic body duct, can not be eliminated fully for foam 2, produce and amount of cancellation according to foam in producing, porous ceramic bodies adopts different rates to rotate forward or backwards, as shown in Figure 3, ceramic body is held concurrently spacing according to the foam adjustable size, when the foam that is not broken fully in the porous ceramics duct enters the ceramic body intermediate gap, in the rotation of ceramic body up and down, can be under the shearing force effect that extruding is produced by complete fragmentation.
The present invention can adopt bilayer or the multi-layer porous ceramic overlap-add procedure more than three layers according to the generation and the elimination situation of foam in the actual condition.
Wherein the porous ceramics of Cai Yonging can be selected relation or different bore diameter porous pottery between the different aperture for use according to the characteristic and the foam size of the foam that produces, and the aperture is less than foam diameter; According to solution properties, as Acidity of Aikalinity, corrosivity etc., can select the unlike material porous ceramics, the porous ceramics that is suitable in this example has 4. diatomaceous material: mainly be raw material with the Primary Study of Choosing Diatomite, add vitrified bond to form, be used for smart drainage and acid medium; 5. pure carbon material: with low ash coal or the burnt particle of asphalt, perhaps add part graphite, fire with the diluted tar bonding and form, be used for water-fast, cold and hot strong acid, cold and hot highly basic medium and air sterillization, filtration etc.; 6. corundum and diamond dust material: electro-corundum and silicon-carbide particle with different model are aggregate, have anti-strong acid, high-temperature stability, and heatproof can reach 1600 ℃; 7. cordierite, material of aluminum titanate:, be widely used in the environment of thermal shock because of its thermal coefficient of expansion is little; 8. the material of other industrial wastes, mine tailing and quartz glass or simple glass formation is then looked raw material composition difference and is applied to different field.
The artificial porous ceramics super hydrophobic surface of making is adopted in the surface-hydrophobicized processing of porous ceramics in this example: adopt the low-surface-energy material to modify the porous ceramics rough surface.Thereby perhaps make nano particle obtain coarse hydrophobic surface at porous ceramic surface ordering growth or rearrangement by hydro-thermal method.
Claims (7)
1. debubbling method that adopts porous ceramics, it is characterized in that: adopt through hydrophobic treatment, and the aperture is less than the porous ceramics of foam diameter, according to the orientation and the fluid flow direction that produce foam, mode is laid in selection, make that foam is torn, fragmentation in the process that flows, passes porous ceramics, finally realize froth breaking.
2. a kind of debubbling method that adopts porous ceramics according to claim 1, it is characterized in that: the mode of laying of porous ceramics has: (1) solution is heated or reacts comparatively violent, foam results from the solution top in a large number, and porous ceramic bodies is placed in foam stream siphunculus road, solution top; (2) solution is heated or reacts comparatively and to relax, and foam results from solution inside, and porous ceramics is placed in the pipeline that solution passes through; (3) solution is heated or reacts extremely violent, foam produces, is gathered in the solution top in a large number, adopt multi-layer porous ceramic body to be placed in foam stream siphunculus road, solution top, when foam can not be eliminated in how empty ceramic body duct fully, produce and amount of cancellation according to foam, porous ceramic bodies adopts different rates to rotate forward or backwards.
3. a kind of debubbling method that adopts porous ceramics according to claim 1 is characterized in that: the mode of laying of pottery, according to the generation and the elimination situation of foam in the actual condition, adopt double-deck or multi-layer porous pottery stack to lay.
4. according to the arbitrary described a kind of debubbling method that adopts porous ceramics of claim 1-3, it is characterized in that: what described porous ceramics was suitable for has: 1. high siliceous silicate material porous ceramics: with hard pitchers, acid-proof ceramics slag and other acidproof synthesize ceramic particles is that aggregate makes; 2. aluminosilicate material porous ceramics: with fire-clay grog, to burn alumina, sillimanite and mullite synthesizing matter particle is that aggregate makes; 3. quiet ceramic material porous ceramics: mix to obtain the micropore ceramics material and make with multiple grog particle with clay etc.; 4. diatomaceous material porous ceramics: be raw material mainly, add vitrified bond and form with the Primary Study of Choosing Diatomite; 5. pure carbon material porous ceramics: with low ash coal or the burnt particle of asphalt, perhaps add part graphite, fire with the diluted tar bonding and form; 6. corundum and diamond dust material porous ceramics: electro-corundum and silicon-carbide particle with different model are aggregate; 7. cordierite, material of aluminum titanate porous ceramics; The perhaps 8. material porous ceramics that constitutes of other industrial wastes, mine tailing and quartz glass or simple glass.
5. according to the arbitrary described a kind of debubbling method that adopts porous ceramics of claim 1-3, it is characterized in that: the following processing mode of surface-hydrophobicized employing of described porous ceramics: (1) according to the kind and the composition of porous ceramics, chooses the Different Silicon alkanes water-repelling agent hydrophobization that comes to the surface and handles; (2) manually make the porous ceramics super hydrophobic surface: (3) carry out surface-hydrophobicized processing by hydro-thermal method; (4) the nano silicon method is carried out surface-hydrophobicized processing.
6. a kind of debubbling method that adopts porous ceramics according to claim 5 is characterized in that: described (2) manually make the porous ceramics hydrophobic surface is to adopt the low-surface-energy material to modify the porous ceramics rough surface.
7. a kind of debubbling method that adopts porous ceramics according to claim 5, it is characterized in that: described (4) nano silicon method is carried out surface-hydrophobicized processing, be by being scattered in the alcohol solvent under the effects such as coupling agent such as acetoacetate aluminium with nano silicon, centrifugal being spin-coated on the porous ceramic surface of dispersion liquid obtains hydrophobic surface through high-temperature calcination, and finishing such as surface modification agent such as PFO base dimethoxy silane can obtain the porous ceramics super hydrophobic surface again.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258604A (en) * | 2014-10-17 | 2015-01-07 | 河北工业大学 | Porous medium defoamer |
| CN107096260A (en) * | 2017-04-17 | 2017-08-29 | 浙江长城搅拌设备股份有限公司 | For the defoaming stirrer in fermentation process |
| CN109046218A (en) * | 2018-09-18 | 2018-12-21 | 山西康特尔精细化工有限责任公司 | A kind of high-performance polycarboxylic acids water reducing agent reaction kettle |
| CN113692310A (en) * | 2019-01-29 | 2021-11-23 | 唐纳森公司 | System and method for degassing |
| US11959186B2 (en) | 2020-11-26 | 2024-04-16 | Changxin Memory Technologies, Inc. | Electroplating method and electroplating apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1172467A (en) * | 1995-01-31 | 1998-02-04 | 罗伯特·博施有限公司 | Ceramic powders with surface which is made hydrophobic and their production and use |
| CN101239256A (en) * | 2007-11-22 | 2008-08-13 | 南京工业大学 | Oil-gas separation ceramic composite membrane tube and assembly and preparation method thereof |
| CN101396647A (en) * | 2007-09-29 | 2009-04-01 | 中科合成油技术有限公司 | Gas-liquid-solid three-phase suspended bed reactor for f-t synthesis and use thereof |
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| CN1172467A (en) * | 1995-01-31 | 1998-02-04 | 罗伯特·博施有限公司 | Ceramic powders with surface which is made hydrophobic and their production and use |
| CN101396647A (en) * | 2007-09-29 | 2009-04-01 | 中科合成油技术有限公司 | Gas-liquid-solid three-phase suspended bed reactor for f-t synthesis and use thereof |
| CN101239256A (en) * | 2007-11-22 | 2008-08-13 | 南京工业大学 | Oil-gas separation ceramic composite membrane tube and assembly and preparation method thereof |
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| CN104258604A (en) * | 2014-10-17 | 2015-01-07 | 河北工业大学 | Porous medium defoamer |
| CN104258604B (en) * | 2014-10-17 | 2015-11-18 | 河北工业大学 | Porous media froth breaker |
| CN107096260A (en) * | 2017-04-17 | 2017-08-29 | 浙江长城搅拌设备股份有限公司 | For the defoaming stirrer in fermentation process |
| CN109046218A (en) * | 2018-09-18 | 2018-12-21 | 山西康特尔精细化工有限责任公司 | A kind of high-performance polycarboxylic acids water reducing agent reaction kettle |
| CN113692310A (en) * | 2019-01-29 | 2021-11-23 | 唐纳森公司 | System and method for degassing |
| CN113692310B (en) * | 2019-01-29 | 2024-03-08 | 唐纳森公司 | System and method for degassing |
| US11959186B2 (en) | 2020-11-26 | 2024-04-16 | Changxin Memory Technologies, Inc. | Electroplating method and electroplating apparatus |
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