WO1991005883A1 - Melting apparatus of cutting scrap - Google Patents
Melting apparatus of cutting scrap Download PDFInfo
- Publication number
- WO1991005883A1 WO1991005883A1 PCT/JP1990/001316 JP9001316W WO9105883A1 WO 1991005883 A1 WO1991005883 A1 WO 1991005883A1 JP 9001316 W JP9001316 W JP 9001316W WO 9105883 A1 WO9105883 A1 WO 9105883A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molten metal
- discharge pipe
- melting
- pipe
- charging container
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0084—Obtaining aluminium melting and handling molten aluminium
- C22B21/0092—Remelting scrap, skimmings or any secondary source aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/066—Treatment of circulating aluminium, e.g. by filtration
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
- C22B7/003—Dry processes only remelting, e.g. of chips, borings, turnings; apparatus used therefor
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S266/00—Metallurgical apparatus
- Y10S266/901—Scrap metal preheating or melting
Definitions
- the present invention is a device for melting a Dalai powder for melting Dalai powder such as aluminum into a molten metal of a melting furnace for aluminum or the like.
- Examples of such technology include those disclosed in Japanese Utility Model Laid-Open Publication No. 60-1363652 and Japanese Utility Model Publication No. 60-136353, In this technique, Dally powder is put into a feed pipe with its lower end immersed in the molten metal, and the Darryl powder is forcibly immersed in the melt by a screw conveyor provided in the feed pipe.
- Japanese Utility Model Application Laid-Open No. 62-1646492 and Japanese Utility Model No. 62-22997 also state that a part of the molten metal is taken out, transported to a high place by an electromagnetic gutter, and There is disclosed a technique in which the powder is dropped into the molten metal while being poured, so that the dary powder is immersed in the molten metal.
- the above-mentioned conventional technology requires a screw conveyor and an electromagnetic gutter, and thus has a problem that the entire device becomes large-scale, and in particular, the technology using the electromagnetic gutter increases the price of the device. was there.
- the Dalai powder In the technology using a screw conveyor, the Dalai powder is pushed down and is pushed into the molten metal. There is a problem that the dissolving efficiency of rye powder is low. Dalai powder is heated and melted by the heat of contact with the molten metal. However, the molten metal in contact with the Dalai powder loses its heat to the Dalai powder and its temperature decreases. Since the molten metal in contact with the Dalai powder hardly flows, the temperature of the molten metal in contact with the Dalai powder eventually decreases to near the melting point of the Dalai powder. There is a problem that a lot of the water floats on the surface of the water and comes into contact with air, causing oxidation.
- an object of the present invention is to always provide a new molten metal as a molten metal that is in contact with the Dalai powder without greatly disturbing the shape of the outer surface of the entire molten metal, and to improve the melting efficiency of the Dalai powder. Disclosure of the invention
- the present invention has been made to achieve the above object, that is, the present invention is directed to immersing a charging container having an opening above a surface of a molten metal in a molten metal in a melting furnace.
- a pouring port for inflow of the molten metal in the melting furnace is provided, an outflow hole is provided in a portion below the surface of the charging vessel, and a discharge pipe is attached to the discharge side of a pump for transporting the molten metal.
- An inflow hole communicating with the outflow hole of the charging vessel is provided, and the molten metal is returned from the discharge pipe into the melting furnace.
- a pouring port can be provided on the side wall of the charging container, and an outflow hole can be provided on the bottom wall of the charging container.
- the charging container may be formed into a rotating body having a substantially vertical axis, for example, a cylindrical shape, and an outflow hole may be provided at a substantially intersection point between the axis and the bottom wall of the charging container.
- the pouring port can be opened in a direction eccentric to a vertical line passing through the outflow hole of the charging container.
- the discharge pipe may be arranged substantially horizontally below the charging container, and an inflow hole may be provided in the upper wall of the discharge pipe to make contact with the outflow hole of the charging vessel.
- the diameter of the pipe can be reduced by an orifice, a Venturi pipe, or the like, or the diameter of the pipe can be rapidly increased.
- a discharge pipe is constituted by an outer pipe having an inflow hole in the pipe wall and a plug provided at one end, and an inner pipe having one end attached to the discharge side of the pump and the other end penetrating through the plug to reach the inflow hole. You can also. Further, the discharge end of the discharge pipe can be extended at least to the vicinity of the outer periphery of the charging container.
- a partitioning means may be provided in the melting furnace so that the molten metal flowing into the suction port of the pump and / or the pouring port of the charging vessel or the like is supplied from the side of the heating chamber of the melting furnace. it can.
- the pressure of the molten metal near the outlet of the charging vessel is substantially equal to the pressure of the molten metal in the melting furnace.
- Bernoulli's theorem is applied between the molten metal near the inlet of the discharge pipe and the molten metal in the melting furnace in the operation state of the Boner, the pressure of the former becomes lower by almost the speed than the latter, and Eventually, the melt pressure near the inlet of the discharge pipe will be lower than the melt pressure near the outlet of the inlet vessel.
- the shape of the outer surface of the entire molten metal has not substantially changed, so that no partial cooling of the molten metal occurs, and the molten metal flowing into the charging vessel also passes through the pump. Since the molten metal is always supplied with new molten metal, the Dalai powder charged from the opening of the charging vessel is sufficiently melted into the rush reaching the melting furnace.
- the pouring port provided in the charging vessel is for letting the molten metal in the melting furnace flow into the charging vessel, it is formed on the side wall or bottom wall of the charging vessel so that at least a part of the pouring port is below the level of the molten metal. There is a need.
- the entire outlet hole of the charging container is formed below the surface of the molten metal in order to prevent air from being mixed. Therefore, it is preferable that the pouring port is provided on the side wall of the charging container and the outlet hole is provided on the bottom wall of the charging container.
- the molten metal flowing out of the outflow hole is rotated by receiving the force of the coriolis and turns into a vortex, so that dissolution of the Dalai powder in the molten metal is promoted.
- the contact time with the molten metal is prolonged, and the heat exchange becomes remarkably good.
- the vortex does not entrap air, so that oxidation does not occur.
- the discharge pipe When an outlet is provided on the bottom wall of the charging vessel, the discharge pipe is It is easy to manufacture because it is arranged almost horizontally below the vessel, and an inflow hole is provided in the upper wall of the discharge pipe so as to contact the outflow hole of the charging vessel.
- a connecting pipe for connecting the two can be used, or the bottom wall or the side wall of the charging vessel has the wall of the discharge pipe. It can also be formed so that it also serves as one capital.
- a charging vessel 10 having an opening 11, a pouring port 12, and an outflow hole 13 is infiltrated.
- the pouring port 12 is for allowing the molten metal 2 in the melting furnace 1 to flow into the charging container 10, and at least a part of the molten metal 2 must be below the molten metal level 3.
- the pouring port 12 is formed on the side wall of the charging container 10, and when the pouring surface 3 rises to the highest position, the pouring port 12 is entirely below the pouring surface 3. When the level 3 falls to the lowest position, only a part of the level is open to a level below the level 3.
- the pouring port 12 can be formed in a slit shape cut downward from the opening 11, it is more advantageous to open the side wall of the charging container 11 as in the present embodiment in terms of the strength of the charging container. It is. Also, as shown in FIG.
- a ceramic for driving the pump 30 and an air motor 31 made of K are mounted at the upper part of the pump 30, a ceramic for driving the pump 30 and an air motor 31 made of K are mounted.
- This embodiment is configured as described above, and the molten metal 2 in the melting furnace 1 flows into the charging vessel 10 through the pouring port 12 of the charging vessel 10.
- the pump 30 is operated by the air motor 31 in this state, the molten metal 2 in the melting furnace sucked by the pump 30 is supplied to the other end of the inner pipe 23 of the discharge pipe 20 attached to the discharge side of the bomb 30 ( In FIG. 1, the melt is discharged from the right end (in the right end) into the outer tube 21. Therefore, the flow velocity of the molten metal 2 is reduced in the outer tube 21.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69020887T DE69020887T2 (de) | 1989-10-14 | 1990-10-12 | Schmelzvorrichtung für späneschrott. |
CA 2042020 CA2042020C (en) | 1989-10-14 | 1990-10-12 | Apparatus for melting down chips |
EP19900914963 EP0448724B1 (en) | 1989-10-14 | 1990-10-12 | Melting apparatus of cutting scrap |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1267513A JPH03129286A (ja) | 1989-10-14 | 1989-10-14 | ダライ粉の溶解装置 |
JP1/267513 | 1989-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991005883A1 true WO1991005883A1 (en) | 1991-05-02 |
Family
ID=17445884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/001316 WO1991005883A1 (en) | 1989-10-14 | 1990-10-12 | Melting apparatus of cutting scrap |
Country Status (6)
Country | Link |
---|---|
US (1) | US5135202A (ja) |
EP (1) | EP0448724B1 (ja) |
JP (1) | JPH03129286A (ja) |
CA (1) | CA2042020C (ja) |
DE (1) | DE69020887T2 (ja) |
WO (1) | WO1991005883A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3299332B2 (ja) * | 1992-04-24 | 2002-07-08 | 株式会社宮本工業所 | アルミニウム合金の廃材溶解装置 |
CA2262108C (en) * | 1996-07-26 | 2004-01-06 | Metaullics Systems Co., L.P. | Gas injection pump |
US6036745A (en) * | 1997-01-17 | 2000-03-14 | Metaullics Systems Co., L.P. | Molten metal charge well |
US6074455A (en) * | 1999-01-27 | 2000-06-13 | Metaullics Systems Co., L.P. | Aluminum scrap melting process and apparatus |
US9156087B2 (en) | 2007-06-21 | 2015-10-13 | Molten Metal Equipment Innovations, Llc | Molten metal transfer system and rotor |
US8337746B2 (en) | 2007-06-21 | 2012-12-25 | Cooper Paul V | Transferring molten metal from one structure to another |
US9410744B2 (en) | 2010-05-12 | 2016-08-09 | Molten Metal Equipment Innovations, Llc | Vessel transfer insert and system |
US10428821B2 (en) | 2009-08-07 | 2019-10-01 | Molten Metal Equipment Innovations, Llc | Quick submergence molten metal pump |
US8524146B2 (en) | 2009-08-07 | 2013-09-03 | Paul V. Cooper | Rotary degassers and components therefor |
US9108244B2 (en) | 2009-09-09 | 2015-08-18 | Paul V. Cooper | Immersion heater for molten metal |
US9903383B2 (en) | 2013-03-13 | 2018-02-27 | Molten Metal Equipment Innovations, Llc | Molten metal rotor with hardened top |
US9011761B2 (en) | 2013-03-14 | 2015-04-21 | Paul V. Cooper | Ladle with transfer conduit |
US10052688B2 (en) | 2013-03-15 | 2018-08-21 | Molten Metal Equipment Innovations, Llc | Transfer pump launder system |
US10465688B2 (en) | 2014-07-02 | 2019-11-05 | Molten Metal Equipment Innovations, Llc | Coupling and rotor shaft for molten metal devices |
US10947980B2 (en) | 2015-02-02 | 2021-03-16 | Molten Metal Equipment Innovations, Llc | Molten metal rotor with hardened blade tips |
US10267314B2 (en) | 2016-01-13 | 2019-04-23 | Molten Metal Equipment Innovations, Llc | Tensioned support shaft and other molten metal devices |
US11149747B2 (en) | 2017-11-17 | 2021-10-19 | Molten Metal Equipment Innovations, Llc | Tensioned support post and other molten metal devices |
CN109161693A (zh) * | 2018-10-31 | 2019-01-08 | 中信戴卡股份有限公司 | 一种铝屑在线回炉装置及工艺 |
JP6997738B2 (ja) * | 2019-04-10 | 2022-01-18 | 三建産業株式会社 | 循環式非鉄金属溶解炉及び非鉄金属溶解方法 |
US11471938B2 (en) | 2019-05-17 | 2022-10-18 | Molten Metal Equipment Innovations, Llc | Smart molten metal pump |
US11873845B2 (en) | 2021-05-28 | 2024-01-16 | Molten Metal Equipment Innovations, Llc | Molten metal transfer device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5731067B2 (ja) * | 1979-09-19 | 1982-07-02 | ||
JPS59226128A (ja) * | 1983-03-14 | 1984-12-19 | アルミニウム・カンパニ−・オブ・アメリカ | 溶融する溶解媒体に金属屑を溶解する方法 |
JPS6134123A (ja) * | 1984-07-10 | 1986-02-18 | ステンカ−・コ−ポレ−シヨン | スクラップ金属を再溶融するための装置 |
JPS62115094U (ja) * | 1986-01-10 | 1987-07-22 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4052199A (en) * | 1975-07-21 | 1977-10-04 | The Carborundum Company | Gas injection method |
US4169584A (en) * | 1977-07-18 | 1979-10-02 | The Carborundum Company | Gas injection apparatus |
US4286985A (en) * | 1980-03-31 | 1981-09-01 | Aluminum Company Of America | Vortex melting system |
CH654331A5 (de) * | 1983-08-25 | 1986-02-14 | Gautschi Electro Fours Sa | Verfahren und vorrichtung zum schmelzen von metallschrott und/oder groebe. |
JP2554510B2 (ja) * | 1987-11-17 | 1996-11-13 | 三建産業 株式会社 | 非鉄金属の切粉溶解装置 |
-
1989
- 1989-10-14 JP JP1267513A patent/JPH03129286A/ja active Pending
-
1990
- 1990-10-12 CA CA 2042020 patent/CA2042020C/en not_active Expired - Fee Related
- 1990-10-12 DE DE69020887T patent/DE69020887T2/de not_active Expired - Fee Related
- 1990-10-12 US US07/684,918 patent/US5135202A/en not_active Expired - Fee Related
- 1990-10-12 EP EP19900914963 patent/EP0448724B1/en not_active Expired - Lifetime
- 1990-10-12 WO PCT/JP1990/001316 patent/WO1991005883A1/ja active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5731067B2 (ja) * | 1979-09-19 | 1982-07-02 | ||
JPS59226128A (ja) * | 1983-03-14 | 1984-12-19 | アルミニウム・カンパニ−・オブ・アメリカ | 溶融する溶解媒体に金属屑を溶解する方法 |
JPS6134123A (ja) * | 1984-07-10 | 1986-02-18 | ステンカ−・コ−ポレ−シヨン | スクラップ金属を再溶融するための装置 |
JPS62115094U (ja) * | 1986-01-10 | 1987-07-22 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0448724A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0448724B1 (en) | 1995-07-12 |
CA2042020C (en) | 1994-03-15 |
US5135202A (en) | 1992-08-04 |
DE69020887T2 (de) | 1996-02-29 |
EP0448724A4 (en) | 1992-04-22 |
DE69020887D1 (de) | 1995-08-17 |
JPH03129286A (ja) | 1991-06-03 |
EP0448724A1 (en) | 1991-10-02 |
CA2042020A1 (en) | 1991-04-15 |
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