CN103111811B - A kind of manufacture method of kaolin iron removal filter screen - Google Patents
A kind of manufacture method of kaolin iron removal filter screen Download PDFInfo
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- CN103111811B CN103111811B CN201310072607.6A CN201310072607A CN103111811B CN 103111811 B CN103111811 B CN 103111811B CN 201310072607 A CN201310072607 A CN 201310072607A CN 103111811 B CN103111811 B CN 103111811B
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Abstract
The invention discloses a kind of manufacture method of kaolin iron removal filter screen, comprise sub-wire, make ripple, make circumferential notch, coiling, welding and the step such as zinc-plated.Advantage of the present invention is: the kaolin iron removal filter screen adopting the method for the invention to prepare can promote the de-ferrous effect of kaolin iron removal filter screen, can not the residual component such as solder or welding rod be contained in screen pack, can not the kaolin in iron removal be polluted.Adopt the screen pack of above-mentioned manufacture method manufacture to have more firmly structure, be in use not easy distortion or fall apart.
Description
Technical field
The present invention relates to a kind of manufacture method of kaolin iron removal filter screen, particularly relate to a kind of with the manufacture method of the iron cobalt magnetically soft alloy kaolin iron removal filter screen that is material.
Background technology
Kaolin take kandite as the claystone class mineral products of main component, it is a kind of 1:1 type phyllosilicate, main component is silica and alundum (Al2O3), also containing a small amount of iron oxide, titanium dioxide, the compositions such as magnesia, it has plasticity, caking property, fire resistance, insulating properties and chemical stability etc.It is a kind of industrial mineral of function admirable, is widely used in the aspects such as pottery, papermaking, rubber, building materials, paint and petrochemical industry.
Pure kaolin presents the white of kaolinite mineral itself, and the principal element causing kaolin whiteness to reduce is organic carbon, pigment element (as iron, titanium, vanadium, chromium, copper, manganese etc.) and the melanocratic mineral such as biotite, chlorite.Wherein iron and titanium are the principal elements affecting kaolin whiteness, have impact on the quality of its physical property and deep processing products obtained therefrom to a great extent, limit the range of application of product.Kaolin, after iron-removal and whitening process, can promote kaolinic quality.Consult Fig. 1, conventional removing iron by kaolin method utilizes electromagnetic deironing machine deironing, electromagnetic deironing machine comprises casing 1, charging aperture 2, discharging opening 3 and magnetic pole 4 etc., discharging opening 3 is arranged on casing 1 upper end, charging aperture 2 is arranged on casing 1 lower end, it is inner that magnetic pole 4 is arranged on casing 1, the periphery of magnetic pole 4 is provided with magnetic separation tube 5, coil 6 and insulating barrier 7 from inside to outside in turn, magnetic separation tube 5 is made up of multiple filtration net 8, and charging aperture 2, screen pack 8 and discharging opening 3 form the passage that kaolin slurry flows through electromagnetic deironing machine.When kaolin slurry flows through filter screen 8, coil 6 is energized, and screen pack 8 is magnetized and can adsorbs the iron part in kaolin slurry, thus reaches the object of removing iron by kaolin.
The manufacture of common screen pack, be generally select stainless iron or stainless steel as the material of screen pack, and stainless iron or stainless saturation induction density are generally less than 0.8T, de-ferrous effect is not ideal enough.In the manufacture process of common screen pack, be generally first by screen pack global formation, and then human weld, this method is difficult to each node being welded to screen pack, and therefore filter screen structure is firm not; In addition, adopt the method for artificial electric welding, need to use solder or welding rod, remain in solder in screen pack or welding rod can pollute the kaolin in iron removal.
Chinese patent CN2476350Y discloses a kind of device utilizing laser technology, electromagnetic technique and natural manganese ores to carry out deironing and filtration, and this device comprises the screen pack that stainless steel is prepared into, and it is not good that it puts into practice de-ferrous effect.CN102583412A discloses a kind of method that removing iron by kaolin brightens, and it carries out acidleach with sulfuric acid to kaolin, then carries out reduction deironing with formaldehyde, acetaldehyde to kaolin, after filtration, washing, obtains brightening kaolin clay sample after drying.This method of whitening is simple to operate, but there is environmental pollution, shortcoming that process operation cost is high.
Summary of the invention
In order to overcome the technological deficiency of solder or the easy polluted kaolin of welding rod in removing iron by kaolin weak effect, iron removal in prior art, the invention provides a kind of manufacture method that can promote the deironing screen pack of removing iron by kaolin effect.Its good iron removal effect, and any pollution can not be caused to kaolin in iron removal, significantly improve kaolinic quality.
Technical scheme of the present invention is: a kind of manufacture method of kaolin iron removal filter screen, and wherein said deironing screen pack material is the iron cobalt magnetically soft alloy containing vanadium, and its saturation induction density is greater than 2.2T.Select iron cobalt magnetically soft alloy as the material manufacturing kaolin iron removal filter screen, the de-ferrous effect of kaolin iron removal filter screen can be promoted.Adopt the iron cobalt magnetically soft alloy containing vanadium metal as the material of screen pack, make screen pack have better processing characteristics, be convenient to manufacture and the processing of screen pack.Inventor is found by a large amount of experiments and practice, when the saturation induction density of the iron cobalt magnetically soft alloy containing vanadium is greater than the removing iron by kaolin effect that 2.2T can promote screen pack, use the obtained deironing screen pack of this material all can obtain gratifying de-ferrous effect in removing iron by kaolin technique.
The manufacture method of kaolin iron removal filter screen described above, the described iron cobalt magnetically soft alloy weight percentage containing vanadium, its chemical composition is preferably: 0≤C≤0.04%, 0≤Mn≤0.30%, 0≤Si≤0.30%, 0≤P≤0.020%, 0≤S≤0.020%, 0≤Cu≤0.20%, 0≤Ni≤0.50%, 49.0%≤Co≤51.0%, 0.80%≤V≤1.80%, 0.50%≤Zn≤0.70%, surplus is Fe.
The manufacture method of kaolin iron removal filter screen described above, it comprises the following steps:
A) sub-wire: iron cobalt magnetically soft alloy is cut into wide vertical bar shape alloy sheet;
B) ripple is made: vertical bar shape alloy sheet is made ripple and obtains corrugated alloy sheet;
C) circumferential notch is made: vertical bar shape alloy plates is become circular ring plate, obtains the circumferential notch of screen pack;
D) coil: vertical bar shape alloy sheet and corrugated alloy sheet are alternately coiled in the periphery of circumferential notch and ensures that the crest of corrugated alloy sheet or trough contact with the vertical bar shape alloy sheet of outside or inner side respectively;
E) be welded and fixed: the crest of welding corrugated alloy sheet or trough and vertical bar shape alloy sheet contact point, make vertical bar shape alloy sheet be fixedly connected with trough with the crest of corrugated alloy sheet;
F) the hocketing of step d) and step e), can obtain screen pack;
G) zinc-plated: step f) gained screen pack to be carried out zinc-plated process and can obtain deironing screen pack.
In the manufacture method of kaolin iron removal filter screen described above, steps d and step e hocket, and can be welded to each node of screen pack, therefore make the structure of screen pack more firm.What adopt in described step c) and step e) is welded as high-frequency welding welding, does not use solder or welding rod in welding process.Therefore, other compositions outside deironing cobalt magnetically soft alloy can not be remained in kaolin iron removal filter screen, can not the kaolin in iron removal be polluted.
In the manufacture method of kaolin iron removal filter screen described above, the quantity that the quantity of the described vertical bar shape alloy sheet in described steps d is preferably one and/or described corrugated alloy sheet is one.Whole screen pack only uses a vertical bar shape alloy sheet and/or a corrugated alloy sheet, makes the structure of screen pack more firm, is in use not easy distortion or falls apart.
The kaolin iron removal filter screen that preparation method of the present invention obtains may be used for kaolin whitening process.The embodiment of the present invention 5 detailed comparisons kaolin iron removal filter screen of the present invention contrasts with adopting the whitening effect of other mode deironing, result shows, the de-ferrous effect of the kaolin iron removal filter screen that preparation method of the present invention obtains significantly is better than the de-ferrous effect of additive method, and iron removal can not pollute kaolin.
The manufacture method of kaolin iron removal filter screen of the present invention, compared with prior art its advantage is:
1) manufacture method of kaolin iron removal filter screen of the present invention, selects iron cobalt magnetically soft alloy as the material manufacturing kaolin iron removal filter screen, can promote the de-ferrous effect of kaolin iron removal filter screen.
2) in the manufacture method of kaolin iron removal filter screen of the present invention, welding adopts high-frequency welding welding, can not remain other compositions outside deironing cobalt magnetically soft alloy, can not pollute in iron removal to kaolin in screen pack.
3) adopt the screen pack of the manufacture method manufacture of kaolin iron removal filter screen of the present invention to have more firmly structure, be in use not easy distortion or fall apart.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the embodiment of the present invention for the electromagnetic deironing machine of removing iron by kaolin;
Fig. 2 is the structural representation of the embodiment of the present invention 1 screen pack;
Fig. 3 is the structural representation of the embodiment of the present invention 2 screen pack;
1. casing, 2. charging aperture, 3. discharging opening, 4. magnetic pole, 5. magnetic separation tube, 6. coil, 7. insulating barrier, 8. screen pack, 81. circumferential notches, 82. vertical bar shape alloy sheets, 83. corrugated alloy sheets, 831. crests, 832. troughs.
Detailed description of the invention
Further illustrate the present invention below by way of specific embodiment, but described embodiment limits the present invention never in any form.
embodiment 1: the manufacture method of kaolin iron removal filter screen of the present invention
It is iron cobalt magnetically soft alloy that kaolin iron removal filter screen prepares material.Selected iron cobalt magnetically soft alloy weight percentage, its chemical composition is: C=0.04%, Mn=0.30%, Si=0.30%, P=0.020%, S=0.020%, Cu=0.20%, Ni=0.50%, Co=49.0%, V=0.80%, Zn=0.70%, Fe=surplus.The kaolin iron removal filter screen structure prepared is consulted shown in Fig. 2, and the manufacture method of this kaolin iron removal filter screen comprises the following steps:
Step a, sub-wire: iron cobalt magnetically soft alloy is cut into wide vertical bar shape alloy sheet 82; Utilize metal banding machine, iron cobalt magnetically soft alloy sheet material be divided into wide vertical bar shape alloy sheet 82, its thickness is about 0.3mm, width is about 3mm, length more than 2 meters.
Step b, make ripple: vertical bar shape alloy sheet 82 is made ripple and obtains corrugated alloy sheet 83.
Step c, make circumferential notch: vertical bar shape alloy sheet 82 is surrounded a small circle, obtains the circumferential notch 81 of screen pack 8; The diameter of circumferential notch 81 is about 70mm.
Steps d, coiling: by vertical bar shape alloy sheet 82 and corrugated alloy sheet 83 circumferential notch 81 around screen pack 8, the alternately coiling and form screen pack 8 in the periphery of circumferential notch 81; Vertical bar shape alloy sheet 82 and corrugated alloy sheet 83 coil about 80 circles respectively in the periphery of circumferential notch 81, one circle of outermost is vertical bar shape alloy sheet 82, screen pack 8 diameter formed is about 160mm, the quantity of vertical bar shape alloy sheet 82 used about 80, the quantity of corrugated alloy sheet 83 used about 80.
Step e, welding: in the process of steps d coiling, when the crest 831 of vertical bar shape alloy sheet 82 and corrugated alloy sheet 83 or trough 832 contact, adopt high-frequency welding method the crest 831 of vertical bar shape alloy sheet 82 and corrugated alloy sheet 83 or trough 832 to be welded together, thus vertical bar shape alloy sheet 82 is fixedly connected with trough 832 with the crest 831 of corrugated alloy sheet 83; The welding method adopted is high-frequency welding, does not use solder or welding rod in welding process.
Through constantly hocketing of steps d and step e, finally obtain screen pack 8.
Step e, zinc-plated: screen pack 8 can be obtained kaolin iron removal filter screen of the present invention through zinc-plated process.
embodiment 2: the preparation method of kaolin iron removal filter screen of the present invention
Screen pack material is iron cobalt magnetically soft alloy.Selected iron cobalt magnetically soft alloy weight percentage, its chemical composition is: C=0.02%, Mn=0.15%, Si=0.20%, P=0.020%, S=0.020%, Cu=0.10%, Ni=0.50%, Co=51.0%, V=1.80%, Zn=0.50%, Fe=surplus.Consult screen pack 8 structure shown in Fig. 3, wherein the diameter of circumferential notch 81 is about 80mm, and screen pack 8 diameter of formation is about 120mm.The difference of the present embodiment and embodiment 1 is, in steps d, the quantity of vertical bar shape alloy sheet 82 used is 1, and the quantity of corrugated alloy sheet 83 used is 1.
the preparation method of embodiment 3 kaolin iron removal filter screen of the present invention
Screen pack material is iron cobalt magnetically soft alloy.Selected iron cobalt magnetically soft alloy weight percentage, its chemical composition is: C=0.02%, Si=0.25%, P=0.015%, S=0.020%, Cu=0.10%, Ni=0.40%, Co=51.0%, V=1.80%, Zn=0.50%, Fe=surplus.Consult screen pack 8 structure shown in Fig. 3, preparation method is with embodiment 2, and wherein the diameter of circumferential notch 81 is about 60mm, and screen pack 8 diameter of formation is about 100mm.The difference of the present embodiment and embodiment 1 is, in steps d, the quantity of vertical bar shape alloy sheet 82 used is 1, and the quantity of corrugated alloy sheet 83 used is 1.
the preparation method of embodiment 4 kaolin iron removal filter screen of the present invention
Screen pack material is iron cobalt magnetically soft alloy.Selected iron cobalt magnetically soft alloy weight percentage, its chemical composition is: C=0.03%, Mn=0.15%, Si=0.20%, P=0.020%, S=0.020%, Cu=0.10%, Ni=0.50%, Co=50.0%, V=1.50%, Zn=0.60%, Fe=surplus.Consult screen pack 8 structure shown in Fig. 2, preparation method is with embodiment 1, and wherein the diameter of circumferential notch 81 is about 90mm, and screen pack 8 diameter of formation is about 180mm.
the kaolin iron removal filter screen de-ferrous effect test that embodiment 5 the present invention prepares
Comparative Examples 1 adopts embodiment 1 kaolin iron removal filter screen, and screen pack material is stainless steel.
Comparative Examples 2 adopts embodiment 1 kaolin iron removal filter screen, and screen pack material is the iron cobalt magnetically soft alloy described in the embodiment of the present invention 2, adopts solder to bond between rectangular-shaped alloy sheet and corrugated alloy sheet.
Comparative Examples 3 adopts method of whitening described in patent application 201210013462.8 embodiment 1.
Use said method to carry out removing iron by kaolin test, measure each group of material permeability, the rear kaolin whiteness of process, deironing rate and dustiness.Wherein whiteness adopts whiteness instrument to measure, and deironing rate is the ferric slip after kaolin process, and the content of iron ion can adopt and form with highly basic the amount precipitated and determine.Dustiness is for being divided into 0 degree, 1 degree, 2 degree Three Estates according to pollution level range estimation, and higher grade, pollutes more serious.0 degree represents pollution-free, and 1 degree represents slight pollution, and 2 degree represent serious pollution.The mensuration of magnetic conductivity adopts the indirect method of measurement, uses electric inductance measuring-testing instrument to measure the inductance value of winding coil on magnetic core, then goes out the magnetic conductivity of core material with formulae discovery.
Table 1 electromagnetic deironing machine of the present invention is to removing iron by kaolin Contrast on effect
Contrast with Comparative Examples 1,
*p < 0.05,
*p < 0.01
As can be seen from Table 1, the present invention includes and use the electromagnetic deironing machine of iron cobalt magnetically soft alloy screen pack and Comparative Examples 1 tool to be significantly improved, to compare on partial parameters also tool with Comparative Examples 3 with Comparative Examples 2 and be significantly improved.Specific as follows:
1) from permeability, the magnetic conductivity of iron cobalt magnetically soft alloy of the present invention is much larger than stainless steel, and this has great importance for the deironing ability strengthening magnet.Wherein containing embodiment 2(with Comparative Examples 2) the magnetic conductivity of iron cobalt magnetically soft alloy the highest.
2) to kaolinic de-ferrous effect, the effect of the electromagnetic deironing machine containing iron cobalt magnetically soft alloy of the present invention is better than the electromagnetic deironing machine containing stainless steel material and makes de-ferrous effect chemically.But because Comparative Examples 2 adopts solder adhesive form and non-solder, certain influence is caused to de-ferrous effect.
3) from whiteness after kaolin process, have direct relation due to itself and electromagnetic deironing machine except ferrum property, its variation tendency is identical with kaolinic de-ferrous effect.The kaolin whiteness of the electromagnetic deironing machine containing iron cobalt magnetically soft alloy of the present invention is better than the electromagnetic deironing machine containing stainless steel material and makes kaolin whiteness chemically, and after the kaolin process of the electromagnetic deironing machine wherein described in the embodiment of the present invention 2, whiteness is the highest.
4) from the dustiness after kaolin process, cause slight pollution in Comparative Examples 2 because the binding materials such as solder come off to kaolin, Comparative Examples 3 is owing to employing a large amount of organic solvent or reagent causes serious pollution to kaolin.Embodiment of the present invention 1-4 adopts physical method deironing, pollution-free to kaolin, and the long service life of involved electromagnetic deironing machine, treatment effeciency is high.
Above-listed detailed description is illustrating for one of the present invention possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (7)
1. a manufacture method for kaolin iron removal filter screen, is characterized in that, described deironing screen pack material is the iron cobalt magnetically soft alloy containing vanadium, and its saturation induction density is greater than 2.2T; Described iron cobalt magnetically soft alloy weight percentage, its chemical composition is: 0≤C≤0.04%, 0≤Mn≤0.30%, 0≤Si≤0.30%, 0≤P≤0.020%, 0≤S≤0.020%, 0≤Cu≤0.20%, 0≤Ni≤0.50%, 49.0%≤Co≤51.0%, 0.80%≤V≤1.80%, 0.50%≤Zn≤0.70%, surplus is Fe.
2. the manufacture method of kaolin iron removal filter screen according to claim 1, is characterized in that, it comprises the following steps:
A) sub-wire: iron cobalt magnetically soft alloy is cut into wide vertical bar shape alloy sheet;
B) ripple is made: vertical bar shape alloy sheet is made ripple and obtains corrugated alloy sheet;
C) circumferential notch is made: vertical bar shape alloy plates is become circular ring plate, obtains the circumferential notch of screen pack;
D) coil: vertical bar shape alloy sheet and corrugated alloy sheet are alternately coiled in the periphery of circumferential notch and ensures that the crest of corrugated alloy sheet or trough contact with the vertical bar shape alloy sheet of outside or inner side respectively;
E) be welded and fixed: the crest of welding corrugated alloy sheet or trough and vertical bar shape alloy sheet contact point, make vertical bar shape alloy sheet be fixedly connected with trough with the crest of corrugated alloy sheet;
F) the hocketing of step d) and step e), can obtain screen pack;
G) zinc-plated: step f) gained screen pack to be carried out zinc-plated process and can obtain deironing screen pack.
3. the manufacture method of kaolin iron removal filter screen according to claim 2, is characterized in that, be welded as high-frequency welding welding in described step c) and step e), welding process does not use solder or welding rod.
4. the manufacture method of kaolin iron removal filter screen according to claim 2, is characterized in that, the quantity of the described vertical bar shape alloy sheet in described step d) is one.
5. the manufacture method of kaolin iron removal filter screen according to claim 2, is characterized in that, the quantity of the described corrugated alloy sheet in described step d) is one.
6. the application of manufacture method gained deironing screen pack in kaolin whitening process described in claim 1.
7. the application of manufacture method gained deironing screen pack in kaolin whitening process described in claim 2.
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| CN101549324A (en) * | 2009-05-25 | 2009-10-07 | 河南理工大学 | Coarse coal powder permanent magnet dry type echelon magnetic extractor |
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| US4079002A (en) * | 1976-04-15 | 1978-03-14 | Aquafine Corporation | Thin-section-matrix magnetic separation apparatus and method |
| CN1227271A (en) * | 1998-02-05 | 1999-09-01 | 安费尤吉纳精密公司 | Iron-cobalt alloy |
| CN2522172Y (en) * | 2002-02-09 | 2002-11-27 | 北京欣博通石油化工设备有限公司 | Magnetic separator strong magnet roller for treating low-intensity magnetic super-fine powder material |
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Address after: 525000 Tian'an District, Jintang Town, Maonan District, Maoming City, Guangdong Province Patentee after: GUANGDONG GAOCI TECHNOLOGY Corp.,Ltd. Address before: 525000 Tian'an District, Jintang Town, Maonan District, Maoming City, Guangdong Province Patentee before: Guangdong high porcelain Technology Co.,Ltd. |
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Address after: 525000 Tian'an District, Jintang Town, Maonan District, Maoming City, Guangdong Province Patentee after: Guangdong high porcelain Technology Co.,Ltd. Address before: 525025 Maoming Xingli kaolin Co., Ltd Patentee before: MAOMING CITY XINGLI KAOLIN Co.,Ltd. |