JP3772006B2 - Filtration equipment for molten metal - Google Patents

Filtration equipment for molten metal Download PDF

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Publication number
JP3772006B2
JP3772006B2 JP29503297A JP29503297A JP3772006B2 JP 3772006 B2 JP3772006 B2 JP 3772006B2 JP 29503297 A JP29503297 A JP 29503297A JP 29503297 A JP29503297 A JP 29503297A JP 3772006 B2 JP3772006 B2 JP 3772006B2
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JP
Japan
Prior art keywords
filter
porous ceramic
molten metal
ceramic tube
filtered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP29503297A
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Japanese (ja)
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JPH11117027A (en
Inventor
朝一 星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Mining and Smelting Co Ltd
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Mitsui Mining and Smelting Co Ltd
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Priority to JP29503297A priority Critical patent/JP3772006B2/en
Publication of JPH11117027A publication Critical patent/JPH11117027A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtration Of Liquid (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

【０００１】
【産業上の利用分野】
本発明は、アルミニウムなどの金属溶湯中に含有される不純物を除去するための金属溶湯用濾過装置に関するものである。
【０００２】
【従来技術】
アルミニウム製自動車用ホイールなどの金属鋳造品、及びアルミニウム製薄板箔などの金属圧延品は、年々品質の向上がもとめられ、そのためにアルミニウムなどの溶融金属中の不純物を除去することがポイントになっている。即ち、アルミニウムなどの溶融金属中には、金属酸化物、耐火物の微小片、等の不純物が含まれている。
この対策として、例えば実開昭５９−６９９５９号などの金属溶湯用濾過装置が用いられ、金属溶湯用濾過装置内部に設置された複数本の硬質媒体チューブにより、アルミニウムなどの溶融金属中の不純物を除去することができる。
ところが、硬質媒体チューブが例えば外部からの強い衝撃や振動等が原因で、硬質媒体チューブの内側の骨材粒子が脱落する可能性があり、脱落した骨材粒子は、濾過後の金属溶湯中に混入して鋳造製品の品質劣化の原因となるという問題点がある。
【０００３】
【発明が解決しようとする課題】
本発明は、上記の従来の問題点を解決したものである。即ち、無機質結合材により結合されている多孔質セラミックチューブが外部からの強い衝撃や振動等が原因で、多孔質セラミックチューブの内側の骨材粒子が脱落し、濾過後の金属溶湯中に混入し、鋳造品や圧延品の品質が劣化するという問題を解決し、良好な濾過が行われることを目的とする。
【０００４】
【課題を解決するための手段】
よって、本発明は、一端を封じた多孔質セラミックチューブの両端部を鏡板の凹部に複数本装着した組立体を内含する金属溶湯用濾過装置において、該多孔質セラミックチューブの下流側に該多孔質セラミックチューブよりも目の粗い硬質媒体からなる平板状のフィルターを設け、該多孔質セラミックチューブの周面部を透過させて金属溶湯を濾過し、さらに該多孔質セラミックチューブにより濾過された金属溶湯のみを平板状のフィルターで濾過することを特徴とする金属溶湯用濾過装置である。
上記金属溶湯用濾過装置において、多孔質セラミックチューブの開放端部に前記フィルターを設けること、多孔質セラミックチューブの開放端部側の鏡板の外面側に前記フィルターを設けること、鏡板により多孔質セラミックチューブの開放端部を被覆し、該鏡板を該多孔質セラミックチューブよりも目の粗い硬質媒体からなる前記フィルターとすること、出湯口に前記フィルターを設けることなどができる。
【０００５】
【発明の実施の形態】
図１は、本発明の実施の形態に係る、金属溶湯用濾過装置である。
この図において、１は耐火材料からなる箱型形状の槽体である。７は、この槽体１内の金属溶湯を加熱・保温するための加熱装置である。槽体１の長手方向の一方の壁部には、金属溶湯の入湯口３が、また他方の壁部には、金属溶湯の出湯口４が、それぞれ設けられている。そして、この入湯口３を通じて、金属溶湯保持炉（図示せず）などから槽体１に供給された金属溶湯が、一端を封じた多孔質セラミックチューブ５にて濾過された後、フィルター６にて更に濾過されて、出湯口４から槽体１外に取り出され、鋳造装置（図示せず）などに導かれる。
図１に示すように、多孔質セラミックチューブ５は円筒状形状をなし、その一端を封じた封止端９と、他端は開放された開放端８とからなる。このような多孔質セラミックチューブ５が複数本、鏡板２により槽体１に支持・固定されている。なお、多孔質セラミックチューブ５はアルミナ、炭化珪素等の骨材粒子を無機質結合材で結合させたものである。また、フィルター６も、溶融アルミナ骨材アルミナ、炭化珪素等の骨材粒子を無機質結合材で結合させたものであるが、多孔質セラミックチューブ５よりも濾過目を粗くする。
【０００６】
次に、図２も、本発明の実施の形態に係る。図２では、一端を封じた多孔質セラミックチューブ５の開放端８に、開放端８の円筒形状に合わせてフィルター６を取り付ける。
次に、図３も、本発明の実施の形態に係る。図３では、一端を封じた多孔質セラミックチューブ５が濾過液出口１０において、鏡板２の凹部１２に複数本挿着してある。そして、鏡板２を間にして、多孔質セラミックチューブ５の反対側に、鏡板２の全面にわたって、多孔質セラミックチューブ５よりも目の粗い硬質媒体からなるフィルター層６を設け、さらにフィルター層６の全面に鏡板２と同材質の板状の硬質媒体層１１を設ける。
次に、図４も、本発明の実施の形態に係る。図４では、一端を封じた多孔質セラミックチューブ５を、鏡板２の凹部１２に複数本挿着してある。ここでは、鏡板２の材料として、多孔質セラミックチューブ５よりも目の粗い硬質媒体からなるフィルター６を用いる。
【０００７】
【発明の効果】
以上説明したように、本発明によれば、多孔質セラミックチューブが外部からの強い衝撃や振動等が原因で、多孔質セラミックチューブの内側の骨材粒子が脱落し、濾過後の金属溶湯中に混入した場合でも直ちに除去されるので、鋳造品や圧延品の品質が劣化するということはない。
【図面の簡単な説明】
【図１】 本発明に関する圧力濾過装置の全体図。
【図２】 本発明に関するフィルターの組み立て図。
【図３】 本発明に関するフィルターの組み立て図。
【図４】 本発明に関するフィルターの組み立て図。
【符号の説明】
１…槽体、２…鏡板、３…入湯口、４…出湯口、５…一端を封じた多孔質セラミックチューブ、６…フィルター、７…加熱装置、８…開放端、９…封止端、１０…濾過液出口、１１…硬質媒体層、１２…凹部。[0001]
[Industrial application fields]
The present invention relates to a molten metal filter for removing impurities contained in a molten metal such as aluminum.
[0002]
[Prior art]
Metal castings such as aluminum automobile wheels and rolled metal products such as aluminum sheet foils are required to improve in quality year by year. For this reason, it is important to remove impurities in molten metal such as aluminum. Yes. That is, the molten metal such as aluminum contains impurities such as metal oxides and refractory fine pieces.
As a countermeasure, for example, a molten metal filter device such as Japanese Utility Model Publication No. 59-69959 is used. Impurities in molten metal such as aluminum are removed by a plurality of hard medium tubes installed inside the molten metal filter device. Can be removed.
However, there is a possibility that the aggregate particles inside the hard medium tube may fall off due to, for example, strong impact or vibration from the outside, and the aggregate particles that have fallen into the molten metal after filtration. There is a problem in that it becomes a cause of quality deterioration of the cast product by mixing.
[0003]
[Problems to be solved by the invention]
The present invention solves the above-mentioned conventional problems. That is, the porous ceramic tube bonded by the inorganic binder is dropped due to strong external impact or vibration, and the aggregate particles inside the porous ceramic tube fall off and enter the molten metal after filtration. An object of the present invention is to solve the problem that the quality of cast products and rolled products deteriorates and to perform good filtration.
[0004]
[Means for Solving the Problems]
Therefore, the present invention provides an apparatus for filtering molten metal including an assembly in which a plurality of ends of a porous ceramic tube sealed at one end are mounted in a recess of an end plate, and the porous ceramic tube is disposed downstream of the porous ceramic tube. A flat filter made of a hard medium having a coarser grain than the porous ceramic tube is provided, the molten metal is filtered through the peripheral surface of the porous ceramic tube, and only the molten metal filtered by the porous ceramic tube is used. Is a filtration device for molten metal, characterized in that the filter is filtered with a flat filter.
In filtration device for the molten metal, providing the filter at the open end portion of the porous ceramic tube, the filter providing the outer surface of the open end side of the porous ceramic tube end plate, the porous ceramic tube by the end plate the open end to the coating to said filter comprising a end plate from coarse rigid medium than the porous ceramic tube, can or providing the filter tap hole.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a filter for molten metal according to an embodiment of the present invention.
In this figure, 1 is a box-shaped tank body made of a refractory material. 7 is a heating device for heating and keeping the molten metal in the tank body 1. A molten metal inlet 3 is provided on one wall of the tank body 1 in the longitudinal direction, and a molten metal outlet 4 is provided on the other wall. And after this molten metal supplied to the tank body 1 from the molten metal holding furnace (not shown) etc. through this hot water inlet 3 is filtered with the porous ceramic tube 5 which sealed one end, with the filter 6 It is further filtered, taken out of the tank body 1 from the tap 4 and guided to a casting apparatus (not shown).
As shown in FIG. 1, the porous ceramic tube 5 has a cylindrical shape, and includes a sealed end 9 with one end sealed and an open end 8 with the other end opened. A plurality of such porous ceramic tubes 5 are supported and fixed to the tank body 1 by the end plate 2. The porous ceramic tube 5 is obtained by bonding aggregate particles such as alumina and silicon carbide with an inorganic binder. The filter 6 is also made by bonding aggregate particles such as fused alumina aggregate alumina, silicon carbide or the like with an inorganic binder, but has a coarser mesh than the porous ceramic tube 5.
[0006]
Next, FIG. 2 also relates to the embodiment of the present invention. In FIG. 2, the filter 6 is attached to the open end 8 of the porous ceramic tube 5 sealed at one end in accordance with the cylindrical shape of the open end 8.
Next, FIG. 3 also relates to the embodiment of the present invention. In FIG. 3, a plurality of porous ceramic tubes 5 sealed at one end are inserted into the recess 12 of the end plate 2 at the filtrate outlet 10. Then, on the opposite side of the porous ceramic tube 5 with the end plate 2 in between, a filter layer 6 made of a hard medium having a coarser mesh than the porous ceramic tube 5 is provided on the entire surface of the end plate 2. A plate-like hard medium layer 11 made of the same material as the end plate 2 is provided on the entire surface.
Next, FIG. 4 also relates to an embodiment of the present invention. In FIG. 4, a plurality of porous ceramic tubes 5 sealed at one end are inserted into the recesses 12 of the end plate 2. Here, a filter 6 made of a hard medium having a coarser mesh than the porous ceramic tube 5 is used as the material of the end plate 2.
[0007]
【The invention's effect】
As described above, according to the present invention, the porous Shitsuse La Mick tube due to strong impact or vibration from the outside, the porous fall off the inner aggregate particles of the ceramic tube, the molten metal in the filtered Even if it is mixed in, it is removed immediately, so that the quality of the cast or rolled product is not deteriorated.
[Brief description of the drawings]
FIG. 1 is an overall view of a pressure filtration device according to the present invention.
FIG. 2 is an assembly diagram of a filter according to the present invention.
FIG. 3 is an assembly diagram of a filter according to the present invention.
FIG. 4 is an assembly diagram of a filter according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Tank body, 2 ... End plate, 3 ... Hot water inlet, 4 ... Outlet port, 5 ... Porous ceramic tube which sealed one end, 6 ... Filter, 7 ... Heating device, 8 ... Open end, 9 ... Sealed end, 10 ... filtrate outlet, 11 ... hard medium layer, 12 ... concave.

Claims (5)

一端を封じた多孔質セラミックチューブの両端部を鏡板の凹部に装着した組立体を内含する金属溶湯用濾過装置において、該多孔質セラミックチューブの下流側に該多孔質セラミックチューブよりも目の粗い硬質媒体からなる平板状のフィルターを設け、該多孔質セラミックチューブの周面部を透過させて金属溶湯を濾過し、さらに該多孔質セラミックチューブにより濾過された金属溶湯のみを平板状のフィルターで濾過することを特徴とする金属溶湯用濾過装置。In a metal melt filtration apparatus including an assembly in which both ends of a porous ceramic tube sealed at one end are mounted in a recess of a mirror plate, the downstream side of the porous ceramic tube is coarser than the porous ceramic tube. A flat plate filter made of a hard medium is provided , the molten metal is filtered through the peripheral surface portion of the porous ceramic tube, and only the molten metal filtered by the porous ceramic tube is filtered through the flat plate filter. A filter for molten metal characterized by the above. 多孔質セラミックチューブの開放端部に前記フィルターを設けたことを特徴とする請求項１に記載の金属溶湯用濾過装置。The filter for molten metal according to claim 1, wherein the filter is provided at an open end of the porous ceramic tube. 多孔質セラミックチューブの開放端部側の鏡板の外面側に前記フィルターを設けたことを特徴とする請求項１に記載の金属溶湯用濾過装置。2. The filter for molten metal according to claim 1, wherein the filter is provided on the outer surface side of the end plate on the open end side of the porous ceramic tube. 鏡板により多孔質セラミックチューブの開放端部を被覆し、該鏡板を該多孔質セラミックチューブよりも目の粗い硬質媒体からなる前記フィルターとしたことを特徴とする請求項１に記載の金属溶湯用濾過装置。End plate of the open end of the porous ceramic tube coated with, filtration molten metal according to claim 1, characterized in that the said filter comprising a end plate from coarse rigid medium than the porous ceramic tube apparatus. 出湯口に前記フィルターを設けたことを特徴とする請求項１に記載の金属溶湯用濾過装置。The filter for molten metal according to claim 1, wherein the filter is provided at a hot water outlet.
JP29503297A 1997-10-14 1997-10-14 Filtration equipment for molten metal Expired - Lifetime JP3772006B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29503297A JP3772006B2 (en) 1997-10-14 1997-10-14 Filtration equipment for molten metal

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Application Number Priority Date Filing Date Title
JP29503297A JP3772006B2 (en) 1997-10-14 1997-10-14 Filtration equipment for molten metal

Publications (2)

Publication Number Publication Date
JPH11117027A JPH11117027A (en) 1999-04-27
JP3772006B2 true JP3772006B2 (en) 2006-05-10

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US20240165696A1 (en) * 2021-03-18 2024-05-23 Pyrotek, Inc. Molten metal filter

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