CN1034636C - Micropore metal filter element and its producing method - Google Patents
Micropore metal filter element and its producing method Download PDFInfo
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- CN1034636C CN1034636C CN94111937A CN94111937A CN1034636C CN 1034636 C CN1034636 C CN 1034636C CN 94111937 A CN94111937 A CN 94111937A CN 94111937 A CN94111937 A CN 94111937A CN 1034636 C CN1034636 C CN 1034636C
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Abstract
The present invention relates to a particulate separating element, particularly to a filter element made of metallic material of particulates in trapped fluid and trapped gas and a producing method of the filter element. The particulate separating element comprises a metallic body of filtration pores communicated by pore space combined by the particulates containing nickel, chromium and ferrum, and the metallic body is in a pipe shape or a plate shape; the filter element is produced by mixing, molding and sintering the ingredients of 70 to 91 wt% of base material containing nickel powder, nickel-chromium powder and iron powder, 3 to 15 wt% of pore-creating addition agent, 0.5 to 5 wt% of binding agent and 5 to 10 wt% of agglutinant; the diameter of the filtration pores for the filter element is 0.1 to 10 microns, the porosity is 35 to 40%, and the filtration efficiency can reach 99.99%; the filtering function of the filter element can be recovered by the reverse blow of gas.
Description
The present invention relates to the separation of particles element, particularly hold back the filter element that the metal material of the particulate in the liquids and gases is made.
Existing metal micro particle filtering element has the surface attachment metal level at film, and shines the filter and the water purifier of the use multiple aperture plasma membrane that obtains with X-ray; The porous metals substrate filter that useful stainless steel-like metal particle metal thin tube is made through sintering; Useful stainless steel-like metal fine aggregate, the metal porous body that makes through sintering, calendering, filling croci, hydrogen reducing; Have to be used in the burning-loss fiber and add the porous metal sintered body that metal powder and/or metallic fiber obtain through sintering; The combined filtration pipe that useful plastic particles and auxiliary material are made through sintering.Above-mentioned metal filter element, most palpuses adopt metallic fiber or metal thin tube, and structure is complicated, and manufacturing process is also complicated, and the plastics filter element is relatively poor to the adaptability of serviceability temperature.Japan Patent office opens the spy and has announced a kind of metal porous goods among the clear 59-107001, be in metal powder, to sneak into flammable hard granular organic material to make, but its aperture is bigger, be the millimeter grade hole footpath, therefore mainly be used as sound-absorbing, absorbing material, can not be as the filter element that separates the micron order particulate.In addition, this porous article is copper base or iron-based goods, and institute's cupric or ferro element composition are high, and the nickel component only contains 5～10%, and therefore, poor corrosion resistance can not be used to contain the medium of acid, alkali.In addition, big because of the aperture of these goods, so the effect of metal powder mainly is the structural strength that increases goods.
Given this, purpose of the present invention just is to provide a kind of metal filter element with energy isolated by filtration particulate of stronger corrosion resistance and recovery reproducibility.
Micropore metal filter element of the present invention (referring to accompanying drawing), have to comprise the metallic object that copper, nickel, chromium, iron powder are formed filter opening, the component of system element and weight percent proportioning thereof comprise nickel powder 19～35, nickel chromium triangle powder 20～35, copper powder 5～10, iron powder 20～47.5, as the lead chloride of pore forming agent or copper chloride 3～15, as the polyvinyl alcohol of binding agent or phenolic resins 0.5～5, as the titantium hydride or the ammonium chloride 5～10 of agglutinant.
Above-mentioned metallic object can be a different shape, can be tubular, can be plate shape, also can be spherical.
One end of above-mentioned tubular metallic object can have adapter, other end sealing to form blind pipe.
The metallic object of above-mentioned plate shape can have a connector that matches with metallic object.Connector can be flange ring, blind flange, the compound tube of adapter is arranged.
After the present invention is shaped the each component batch mixes, pore forming agent, binding agent, agglutinant burning are disappeared, metal particle is formed filtering bodies, original position of the pore forming agent between metal particle, binding agent, agglutinant forms many micro pores, hole between these metal particles and the metal particle formation filtration channel that is interconnected, the double-sided surface that countless filtration channels is communicated with filtering bodies forms filter opening, becomes filter element.
Above-mentioned metal powder and consumption are selected for use according to purposes, and the granularity of metal powder is selected according to required filter opening aperture of making, and the more little then aperture of granularity is more little, and the big more then aperture of granularity is big more.Above-mentioned pore forming agent is used for making filtering bodies to form hole, the aperture and the porosity of its consumption and granularity decision filtering bodies, and consumption is many, and granularity is little, can obtain small-bore and highly porous filtering bodies.Above-mentioned binding agent has the function that powder is shaped, and agglutinant plays one's part to the full pore forming agent, makes filtering bodies obtain uniform hole.In addition, the consumption of metal powder is many more, and then the intensity of filtering bodies is high more, but porosity can descend, and the aperture can be big more, so the used in amounts of each component is selected to determine according to purposes.
Micropore metal filter element of the present invention has following advantage and effect.
One, the present invention adopts the degree of metal powders such as nickel with highly corrosion resistant, chromium to exceed the prior art several times, has the performance of stainless steel metal, intensity height not only, and its high corrosion resistance is applicable to acid, bases Korrosionsmedium.
Two, filter opening of the present invention is minimum, its filter road is tortuous, therefore the particulate foreign material in the fluid can not enter filter opening, or only enter the shallow table portion of filter opening, and can not enter the filter road, therefore, available air-flow backblowing adheres to particulate foreign material on the outer surface when remove filtering, make the filter element regeneration of being recovered, recover and the maintenance filtering function long service life.
Three, adopt pore forming agent, agglutinant to make that metal particle and filter opening filter road is evenly distributed, the density height among the present invention, porosity is up to 35～45%.Filter efficiency can reach 99.99%.
Being of wide application of micropore metal filter element of the present invention is applicable to the filtration of gaseous fluid, can be used for flue gas, soda acid waste gas, vehicle exhaust, fuel oil waste gas; Pharmaceutical purpose gas, Gourmet Powder Factory's usefulness gas, fermentation gas; Gas filtrations such as outdoor bathing place ventilation, central air-conditioning gas, hotel and villa idle call.
The present invention also is applicable to the filtration of liquid phase fluid, can be used for Electronics Factory's ultra-pure water, X-ray and TV fluorescent material, electroplate liquid, sensitization barium sulfate, barium chloride, floral water, silk mill water quality, amylase sheet frame liquid, injection wash bottle water, adriamycin zymotic fluid, Glucose Liquid, activated carbon degassing liquid, chlor-alkali salt solution, dioxygen water quality, petroleum catalyst, manganese liquid, the fine sour sodium of sulphur, sulphur, aluminium oxide, syrup, seaweed gel; The filtration of oil-field brine, drinking water, fish sauce, soy sauce, chrysanthemum juice, sea-buckthorn juice, soya-bean oil, rape oil, grease, wine, middle medicament etc.
The present invention also is applicable to three wastes processing, can be used for the filtration decontamination of heavy metal wastewater thereby, acid wastewater in mine, carbon ore deposit waste water, alcohol waste water, fluoride waste, dyeing waste water, oily waste water, emulsion paint waste water, suspended matter-containing wastewater, fishpond recirculated water, outdoor bathing place recirculated water etc.
Below, use embodiment and accompanying drawing thereof again, the present invention is further described.
Brief description of drawings.
Fig. 1 is the structural representation of a kind of micropore metal filter element of the present invention.Show and be tubular.
Fig. 2 is the cross-sectional structure schematic diagram of Fig. 1.Show and be tubular.
Fig. 3 is the structural representation of a kind of micropore metal filter element of the present invention.It is tubular that demonstration is rib.
Fig. 4 is the cross-sectional structure schematic diagram of Fig. 3.Show that six ribs are tubular.
Fig. 5 is the schematic diagram of a kind of end construction of Fig. 1.Show that the end is the blind pipe structure of hemisphere pedestal.
Fig. 6 is the schematic diagram of a kind of end construction of Fig. 1.Show that the end is the blind pipe structure of plug pedestal.
Fig. 7 is the schematic diagram of a kind of end construction of Fig. 1.Show that the end is the adapter of screw-type.
Fig. 8 is the schematic diagram of a kind of end construction of Fig. 3.Show that the end is bayonet socket welded type or bonded adapter.
Fig. 9 is the structural representation of a kind of micropore metal filter element of the present invention.Show the plate shape that is the plane.
Figure 10 is the structural representation of a kind of micropore metal filter element of the present invention.Show the plate shape that is the spherical crown curved surface.
Figure 11 is Fig. 9,10 left TV structure schematic diagram.Show that periphery is circular.
Figure 12 is that schematic diagram is looked on the left side of the another kind of structure of Fig. 9.Show that periphery is a quadrangle.
Figure 13 is the structural representation that the metallic object of plate shape is connected with the connector of blind flange formula.
Figure 14 is the structural representation that the metallic object of plate shape is connected with the connector of flange ring type.
Figure 15 is the structural representation that metallic object and the two ends of plate shape have the connector of the assembled tube type of adapter to be connected.
Embodiment 1
A kind of micropore metal filter element of the present invention.Its structure is shown in Fig. 1,2,5,6.With particle diameter is-400～+ 100 orders, Liang nickel powder 30, nickel chromium triangle powder 20, copper powder 5, iron powder 21, the copper chloride 15 that helps the hole example, the phenolic resins 4 of making binding agent are made the ammonium chloride 5 of agglutinant by weight percentage, fully mix, being packed into mould, using hydraulic press, is under 1～1.2 ton/square centimeter at pressure, compression molding, put into sintering furnace, under 800～1100 ℃ of temperature, sintering is made cross-sectional profile and is circular tubular metallic object 1.Above-mentioned circle can be positive circle, also can be oval.Metallic object 1 is interconnected to constitute by metal particle 2, the filtration channel that between metal particle, has many holes that are interconnected to constitute, these filtration channels are communicated with the inner surface 3 and the outer surface 4 of metallic object 1, form filter opening, the aperture of its filter opening is 0.5～10 micron, and porosity is 35%.The external diameter of metallic object is 80 millimeters, and length is 400 millimeters.Can make the hemispheric bottom 5 identical at an end of metallic object, also can make the plate shaped bottom 7 of supporting protruding 6, make the tubular metal body become blind pipe with welding or adhering method with the metallic object structure.At the other end of metallic object, can install with helicitic texture and take over 8, also can install adapter with welding or bonded structure.Above-mentioned adapter can be isometrical pipe, also can be reducer pipe.
During use, the present invention is installed in constitutes filter in the housing.Medium can through the filter opening of tube wall, flow in the pipe outside pipe, and the granulometric impurity in the medium is trapped within outside the pipe, and clean medium is sent from adapter.During cleaning, with pressure is that the purge gas medium of 0.1～0.2NPa is sent in the pipe from adapter, blow out through filter opening, peel off attached to the particulate in the present invention, also can be before using purge of gas, the present invention is put into stove be heated to 800 ℃, make, to recover porosity attached to the particulate carbonization in the present invention.Filtering process and cleaning process also can adopt with above-mentioned opposite direction and carry out.
Present embodiment can be used for deironing, the oil filtration of industrial steam and condensate water, and the recycle-water that can be used for sewage disposal filters and the resolution element of liquid-solid, gas-solid, gas-liquid.The pressure reduction that bears during filtration is 0.1～0.5MPa
Embodiment 2
A kind of micropore metal filter element of the present invention, its structure are shown in Fig. 3,4,7, and its structure, manufacture method and using method are substantially the same manner as Example 1.Different is that metallic object 9 is that six ribs are tubular.Also can be cross section be polygonal its each limits such as triangle, quadrangle, pentagon can be equilateral or unequal-sided or the rib of arc and straightway combination tubular.It is taken over 10 and can adopt welding or adhesive structure to be connected with metallic object.
Embodiment 3
A kind of micropore metal filter element of the present invention.Its structure is shown in Fig. 9,11,12,13,15.With particle diameter be-400～+ 100 orders, by weight percentage amount nickel powder 20, nickel chromium triangle powder 35, copper powder 10, iron powder 26.5, do pore forming agent lead oxide 3, do binding agent polyvinyl alcohol 0.5, make the titantium hydride 5 of agglutinant, fully mix, the mould of packing into, use hydraulic press, at pressure is under 1.2～1.7 tons/square centimeter, and sintering furnace is put in compression molding, under 1000～1300 ℃ of temperature, sintering is made the metallic object 11 of plate shape.Above-mentioned plate shape can be a planar shaped, also can be curved surface shaped, and its peripheral shape can be that circle comprises positive circle, ellipse; Can be polygon, comprise triangle, quadrangle, can be equilateral, also can be inequilateral shape, also can be the combination shape of arc and straightway.The structure of particulate is identical with embodiment 1 in the metallic object.Filtration channel is communicated with left-hand face 12 and right lateral surface 13 forms filter openings, and its aperture is that 0.1～0.2 micron, porosity are 40%.Metallic object 11 is plate shaped, also can be made into plectane, or tetragonal side's plate 14, and its thickness is 2～3 millimeters.The blind flange 15 that matches with the shape size with metallic object is installed in metallic object on the substrate 16.Also can take over 17,18 and barrel shell 19, make compound tube, metallic object is encapsulated in the compound tube constitutes with helicitic texture or welding or bonded structure with structure identical two.Using method and cleaning method are substantially the same manner as Example 1.
Present embodiment can be used for the degerming of drinkable water, the filtration of removing organic matter and jelly; Be used for the impurity of medical medicament, the filtration of removing the thalline thing; Be used for the filtration of wine and extract; Liquid-solid, gas-solid, gas-liquid separation element as all trades and professions of food.
Embodiment 4
A kind of micropore metal filter element of the present invention, its structure is shown in Figure 10,14.Its structure and manufacture method and using method are substantially the same manner as Example 3, and the metallic object 20 of different is plate shape is spherical.Above-mentioned spherical, can be that single side face is spherical, it is spherical to be that two sided is; Its spherical crown can be less than hemisphere, also can be greater than hemisphere.Its periphery can weld mutually with bonding with flange ring and be connected.When medium during to inner surface 22 flow filtrations, can bear big pressure from spherical crown outer surface 21.
Claims (1)
1, micropore metal filter element, have to comprise the metallic object that copper, nickel, iron powder are formed filter opening, the component weight percent proportioning that it is characterized in that making this element comprises nickel powder 19～35, nickel chromium triangle powder 20～35, copper powder 5～10, iron powder 20～47.5, as the lead oxide of pore forming agent or copper chloride 3～15, as the polyvinyl alcohol of binding agent or phenolic resins 0.5～5, as the titantium hydride or the ammonium chloride 5～10 of agglutinant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111937A CN1034636C (en) | 1994-10-19 | 1994-10-19 | Micropore metal filter element and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111937A CN1034636C (en) | 1994-10-19 | 1994-10-19 | Micropore metal filter element and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1104945A CN1104945A (en) | 1995-07-12 |
| CN1034636C true CN1034636C (en) | 1997-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94111937A Expired - Fee Related CN1034636C (en) | 1994-10-19 | 1994-10-19 | Micropore metal filter element and its producing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034636C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368055C (en) * | 2006-07-20 | 2008-02-13 | 孙迎涛 | Copper filtering material and its preparing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069188A (en) * | 2010-11-26 | 2011-05-25 | 王东伟 | Method for producing high-strength long metal powder filter tube |
| CN115572786B (en) * | 2022-10-31 | 2023-09-05 | 北京北科环境工程有限公司 | Converter gas dust removal and recovery integrated device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239557A (en) * | 1978-01-11 | 1980-12-16 | Gould Inc. | Thermally stable sintered porous metal articles |
| JPS59107001A (en) * | 1982-12-09 | 1984-06-21 | Janome Seimitsu Kogyo Kk | Production of porous metallic body by sintering |
-
1994
- 1994-10-19 CN CN94111937A patent/CN1034636C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239557A (en) * | 1978-01-11 | 1980-12-16 | Gould Inc. | Thermally stable sintered porous metal articles |
| JPS59107001A (en) * | 1982-12-09 | 1984-06-21 | Janome Seimitsu Kogyo Kk | Production of porous metallic body by sintering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368055C (en) * | 2006-07-20 | 2008-02-13 | 孙迎涛 | Copper filtering material and its preparing method |
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| Publication number | Publication date |
|---|---|
| CN1104945A (en) | 1995-07-12 |
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