WO2014024330A1 - 永久磁石式筒型溶湯攪拌装置及び永久磁石式汲み出しポンプ付溶解炉 - Google Patents
永久磁石式筒型溶湯攪拌装置及び永久磁石式汲み出しポンプ付溶解炉 Download PDFInfo
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- WO2014024330A1 WO2014024330A1 PCT/JP2012/078636 JP2012078636W WO2014024330A1 WO 2014024330 A1 WO2014024330 A1 WO 2014024330A1 JP 2012078636 W JP2012078636 W JP 2012078636W WO 2014024330 A1 WO2014024330 A1 WO 2014024330A1
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- molten metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
- F27D27/005—Pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/02—Electrodynamic pumps
- H02K44/04—Conduction pumps
Definitions
- the present invention relates to a permanent magnet type cylindrical molten metal stirrer and a permanent magnet type pump for agitation of Al, Cu, Zn, Si or at least two of these alloys, Mg alloys, or other metal melts. It relates to a melting furnace with a pump.
- Conventional non-ferrous metal or other metal agitation uses an electromagnetic coil to generate a moving magnetic field by applying a low-frequency or high-frequency current to generate a moving magnetic field, or a rotating blade is inserted into the melt to directly agitate the melt.
- a mechanical stirrer and the like The main objectives of these are to make the composition of the molten metal in the furnace uniform, to make the temperature distribution of the molten metal uniform, and to shorten the melting time in the melting furnace.
- the present invention has been made to solve the above-mentioned problems, and its purpose is to reduce the amount of heat generation, maintenance is easy and easy to use, the installation position is flexible, and the stirring ability can be adjusted. And providing a melting furnace with a permanent magnet pump.
- the apparatus and melting furnace of the present invention are configured as follows.
- Permanent magnet type molten metal stirring device of the present invention A furnace body having a molten metal chamber for storing molten metal; A stirring device for stirring the molten metal in the furnace body; With The stirring device A molten metal driving chamber constituting section that is disposed in the molten metal chamber and forms a driving chamber for giving driving force to the molten metal and having both ends open; A pair of electrodes arranged in the drive chamber for flowing a current in the drive chamber in the presence of molten metal; A magnetic field device composed of permanent magnets arranged outside the furnace body, wherein one of an N pole and an S pole is opposed to the furnace body, and the magnetic field lines from the one pole are the current and A magnetic field device that crosses and generates an electromagnetic force that drives the molten metal from one end to the other end in the drive chamber; It is comprised as provided with.
- the permanent magnet type molten metal stirring device of the present invention is: A furnace body having a molten metal chamber for storing molten metal; A stirring device for stirring the molten metal in the furnace body; With The stirring device A molten metal drive chamber constituent part that is disposed outside the furnace body and forms a drive chamber in cooperation with the outer wall of the furnace body, the drive chamber being formed of the molten metal chamber and the molten metal opened in the side wall.
- a molten metal driving chamber component communicating with the outlet and the inlet;
- a pair of electrodes arranged in the drive chamber for flowing a current in the drive chamber in the presence of molten metal;
- a magnetic field device composed of permanent magnets arranged outside the furnace body and outside the molten metal driving chamber component, wherein one of an N pole and an S pole faces the molten metal driving chamber component, Magnetic field lines from one of the poles intersect the current to cause the molten metal to flow into the molten metal chamber from the driving chamber and to flow out of the molten metal chamber into the driving chamber, and generate a magnetic field device. It is comprised as provided with.
- the permanent magnet type molten metal stirring device of the present invention is: A furnace body having a molten metal chamber for storing molten metal; A stirring device for stirring the molten metal in the furnace body; With The stirring device A molten metal drive chamber constituting part disposed outside the furnace body and having a drive chamber, the drive chamber communicating with the molten metal chamber via an outlet and an inlet of the molten metal opened on a side wall of the furnace body A molten metal driving chamber component, A pair of electrodes arranged in the drive chamber for flowing a current in the drive chamber in the presence of molten metal; A magnetic field device constituted by permanent magnets housed in a housing space of a magnetic field device formed in a state isolated from the molten metal by the molten metal drive chamber constituent part and the side wall of the furnace body, One pole of the N pole and the S pole is opposed to the above in the molten metal drive chamber constituting part, Magnetic field lines from the one pole intersect the current to generate an electromagnetic force that causes the molten metal to
- the melting furnace with a permanent magnet pump is A furnace body having a molten metal chamber for storing molten metal; A pump device arranged in the furnace body and pumping out the molten metal to the outside; With The pump device is A molten metal driving chamber component for applying a driving force to the molten metal, one end being opened in the molten metal chamber and the other end being opened outside the molten metal chamber, forming a driving chamber, and a molten metal driving chamber component, A pair of electrodes arranged in the drive chamber for flowing a current in the drive chamber in the presence of molten metal; A magnetic field device composed of permanent magnets arranged outside the furnace body, wherein one of an N pole and an S pole is opposed to the furnace body, and the magnetic field lines from the one pole are the current and A magnetic field device that crosses and generates an electromagnetic force that drives the molten metal from one end to the other end in the drive chamber; It is comprised as provided with.
- FIG. 2 is a sectional view taken along line II-II in FIG. 1.
- A Explanatory drawing of a side surface of a molten metal drive chamber constituent part, (b) a sectional view taken along line IIIb-IIIb.
- A The top view of the 2nd Embodiment of this invention, (b) The IVb-IVb sectional view taken on the line.
- A The top view of the 3rd Embodiment of this invention, (b) The Vb-Vb sectional view taken on the line.
- FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12. Side surface sectional drawing of the 8th Embodiment of this invention.
- FIG. 1 and 2 show a plan view of the first embodiment of the present invention and a cross-sectional view taken along the line II-II in FIG.
- the permanent magnet type molten metal stirring device 10 of this embodiment includes a furnace body 1 having a molten metal chamber MR, and a stirring device 3 attached to the furnace body 1.
- the stirring device 3 has a permanent magnet type magnetic field device 4, a cylindrical molten metal drive chamber constituting unit 5, and a power control panel 6 connected to a power source.
- the magnetic field device 4 is a so-called monopolar permanent magnet.
- the magnetic field device 4 is provided outside the side wall 1 ⁇ / b> A of the furnace body 1, the molten metal drive chamber constituting part 5 is provided in the furnace body 1, and the power control panel 6 is provided at an arbitrary position outside the furnace body 1.
- the stirring device 3 rotates the molten metal M in the furnace body 1 counterclockwise, for example, as indicated by an arrow A in FIG. 1 by electromagnetic force according to Fleming's left hand rule. Is.
- the magnetic field device 4 faces the molten metal drive chamber constituting portion 5 with the side wall 1 ⁇ / b> A of the furnace body 1 interposed therebetween.
- FIGS. 3 (a) and 3 (b) The structure of the cylindrical molten metal drive chamber constituting portion 5 is particularly shown in FIGS. 3 (a) and 3 (b).
- FIG. 3A is a front view in which a part of the molten metal drive chamber constituting portion 5 is broken
- FIG. 3B is a sectional view taken along the line IIIb-IIIb.
- the molten metal drive chamber constituting portion 5 has a slightly long cylindrical shape, and its cross section is a frame shape.
- the internal space of the melt drive chamber constituting section 5 is driven and accelerated by applying an electromagnetic force F to the melt M according to Fleming's left-hand rule (toward the left or right in FIG. 3A).
- the top plate 5a and the bottom plate 5b of the molten metal drive chamber component 5 are provided with a pair of electrodes 7a and 7b embedded in the inner surface portions thereof. Between these electrodes 7a and 7b, in the presence of the molten metal M, for example, a direct current I flows from the electrode 7a to the electrode 7b (or from the electrode 7b to 7a). These electrodes 7 a and 7 b are connected to the power supply control panel 6 through wirings 9 and 9. A part of these wirings 9, 9 is provided in an embedded state in the molten metal drive chamber constituting portion 5. This is to prevent the direct contact between the wirings 9 and 9 and the high-temperature molten metal M, thereby extending the life.
- the position where the electrodes 7a and 7b are embedded in the molten metal drive chamber constituting portion 5 is approximately the center of the length L of the molten metal drive chamber constituting portion 5. Further, the length L is preferably equal to or greater than the distance D between the electrodes 7a and 7b. This is because the current flowing between the electrodes 7a and 7b does not leak outside the acceleration space AS of the molten metal driving chamber constituting section 5 and flows only in the acceleration space AS. The electrodes 7a and 7b are inevitable to be damaged because they are in contact with the molten metal M. For this reason, also in this embodiment and other embodiments described below, the electrodes 7a and 7b are provided in a replaceable manner.
- the power supply control panel 6 is configured so that the output to the wirings 9 and 9 can be adjusted in both voltage and current.
- the polarity of the pair of output terminals is also switchable.
- the magnetic field device 4 is constituted by a permanent magnet and is used as a so-called monopolar magnet. That is, one of the S pole and the N pole (N pole in this embodiment) is disposed so as to face the furnace body 1. That is, as can be seen from FIG. 2 in particular, the N pole is provided so as to face the molten metal drive chamber constituting portion 5 through the side wall 1A of the furnace body 1. In FIG. 2, there is a gap between the magnetic field device 4 and the side wall 1 ⁇ / b> A, but there may be no gap so as to be installed as close as possible to the molten metal drive chamber constituting unit 5.
- the force that is, the rotational speed of the molten metal M can be controlled. Further, the polarity of the output to the wirings 9 and 9 can be switched by the power supply control panel 6 to change the direction of the electromagnetic force F and to reverse the rotation direction of the molten metal M in the furnace body 1.
- the magnetic field device 4 is disposed on the side of the furnace body 1, but this magnetic field device 4 can be disposed below the furnace body 1 instead.
- FIGS. 4 (a) and 4 (b) This is shown in FIGS. 4 (a) and 4 (b) as a second embodiment.
- 4A is a plan view
- FIG. 4B is a sectional view taken along the line IV-IV.
- the molten metal drive chamber constituting section 5 is arranged so that the current I flows in the horizontal direction in the figure.
- the magnetic field lines ML run in the vertical direction, the current I flows in the horizontal direction, and both are substantially orthogonal.
- FIG. 4A is a plan view
- FIG. 4B is a sectional view taken along the line IV-IV.
- the molten metal drive chamber constituting section 5 is arranged so that the current I flows in the horizontal direction in the figure.
- the magnetic field lines ML run in the vertical direction
- the current I flows in the horizontal direction
- both are substantially orthogonal.
- the electromagnetic force F that drives the molten metal M is generated as in FIG. 1, and the molten metal M is rotationally driven as indicated by an arrow A.
- the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. This is the same in all embodiments described below.
- FIG. 5 (a) and 5 (b) show a third embodiment in which the molten metal M in the furnace body 1 is rotationally driven in the vertical direction as indicated by an arrow A in FIG. 5 (b).
- 5A is a plan view
- FIG. 5B is a cross-sectional view taken along the line Vb-Vb.
- the current I and the lines of magnetic force ML are generated so as to generate an electromagnetic force F that causes the molten metal driving chamber forming section 5 to suck the molten metal M from below and discharge it upward. I am doing so. More details are as follows.
- the melt driving chamber forming portion 5 is incorporated in the furnace body 1 in a so-called standing state by a desired means.
- the current I flows between the electrodes 7a and 7b along the vertical direction in the figure, and the magnetic force line ML flows along the horizontal direction in the figure.
- the upward electromagnetic force F arises.
- the molten metal M in the furnace body 1 is rotationally driven in the vertical direction as indicated by an arrow A shown in FIG.
- the Fleming's left-hand rule is applied to the molten metal M in the acceleration space AS of the tubular molten metal driving chamber constituting portion 5.
- the electromagnetic force F is applied. That is, the embodiment of the present invention only needs to have such an acceleration space AS by some means. Therefore, in order to provide such an acceleration space AS, the molten metal drive chamber constituting portion 5 does not need to be cylindrical in itself.
- a fourth embodiment of the present invention configured from such a viewpoint will be described.
- FIGS. 6A and 6B show the molten metal drive chamber constituting portion 5A used in the fourth and fifth embodiments.
- the molten metal drive chamber constituting portion 5A is configured by cutting out one side surface of the molten metal drive chamber constituting portion 5 shown in FIG. 3A, and has a U-shaped cross section, that is, a so-called lateral channel. Has a mold.
- This molten metal drive chamber constituting portion 5A can be used in place of the molten metal drive chamber constituting portion 5 of FIG. However, in this case, the molten metal drive chamber constituting portion 5A is not used alone, but is used so as to create the acceleration space AS in cooperation with the side wall 1A (or the bottom wall 1B) of the furnace body 1.
- the molten metal drive chamber constituting portion 5A is used in such a manner that the end surface 5a1 of the top plate 5a and the end surface 5b1 of the bottom plate 5b are in contact with the inner surface of the furnace body 1 to form the acceleration space AS.
- FIG. 7 and 8 show a fourth embodiment and a fifth embodiment configured based on such a technical idea. That is, FIG. 7 shows a cross section corresponding to FIG. 2 of the first embodiment, and shows a third embodiment using the molten metal drive chamber constituting portion 5A. FIG. 8 shows a cross-section corresponding to FIG. 4B of the second embodiment, and shows a fifth embodiment using the molten metal drive chamber constituting portion 5A.
- the acceleration space AS is formed by the molten metal drive chamber constituting portions 5 and 5A housed in the furnace body 1.
- the acceleration space AS may be formed by the means.
- the acceleration space AS is formed by externally attaching the molten metal drive chamber constituting portion 5 ⁇ / b> B to the furnace body 1. More details are as follows.
- the molten metal drive chamber constituting portion 5B shown in FIG. 11 is used.
- the molten metal drive chamber constituting portion 5B has a container shape in which only the top plate portion of the six surfaces is opened, and the electrodes 7a and 7b are attached to protrude from the inner surface of the bottom plate 5Ba.
- the side wall 101A has an outlet 101a through which the molten metal M flows out and an inlet 101b through which the molten metal M flows from the outside. is doing.
- the magnetic field device 4 is provided so as to face the electrodes 7a and 7b in the horizontal direction in FIG. 10 via the bottom plate 5Ba of the molten metal drive chamber constituting portion 5B. .
- the current I flowing between the electrodes 7a and 7b and the magnetic force lines ML from the magnetic field device 4 cross each other in a substantially orthogonal state, and the electromagnetic force F shown in FIG. 9 is obtained.
- the electromagnetic force F drives the molten metal M in the acceleration space AS, and the molten metal M in the furnace body 101 flows out of the outlet 101a and enters the acceleration space AS.
- the molten metal M in the space AS flows into the furnace body 101 from the inlet 101b. Thereby, the molten metal M in the furnace body 1 is driven to rotate as indicated by an arrow A in FIG.
- the seventh embodiment shows an example in which the magnetic field device 4 is arranged in an isolated state between the electrodes 7a and 7b and the furnace body 101. More details are as follows.
- a separate melt drive / storage device 105 is attached to the furnace body 101 in a sealed state.
- the molten metal drive / storage device 105 includes an acceleration space AS and functions as a so-called original molten metal drive chamber component, and in addition to the storage space 105 ⁇ / b> A for storing the magnetic field device 4 together with the side wall 101 ⁇ / b> A of the furnace body 101. It has the function of forming.
- the storage space 105A is naturally isolated from the molten metal M, and the magnetic field device 4 does not touch the molten metal M.
- electrodes 7 a and 7 b are provided in the vertical direction in the drawing in the acceleration space AS in the molten metal drive and storage device 105.
- this acceleration space AS is open only at the top, and as can be seen from FIG. 12, the furnace main body 101 and its outlet 101a and inlet 101b communicate with each other.
- the magnetic field device 4 is stored in the storage space 105A.
- the current I between the electrodes 7a and 7b and the magnetic force line ML from the magnetic field device 4 intersect to generate an electromagnetic force F, which is finally the same as in the previous embodiment.
- Molten metal M is driven along arrow A as shown in FIG.
- the molten metal drive chamber constituting section 5 shown in FIG. 2 can be configured to be continuously rotatable around an axis perpendicular to the paper surface in the drawing. With such a configuration, the molten metal drive chamber constituting portion 5 can be rotated to the direction of the molten metal drive chamber constituting portion 5 shown in FIG. In this case, it is necessary to change the direction of the magnetic field device 4 in accordance with the change in the direction of the molten metal drive chamber constituting unit 5.
- FIG. 14 shows yet another embodiment of the present invention.
- This embodiment shows the example which comprised the molten metal pump which can send out the molten metal M in a furnace main body out of a furnace main body by changing the structure of a molten metal drive chamber structure part.
- the molten metal drive chamber constituting portion 205 having one end of the molten metal drive chamber constituting portion 5 shown in FIG. 1 is used, and the discharge pipe portion 205a communicating with the acceleration space AS is provided on the top plate portion.
- a pair of electrodes 7a and 7b are arranged in the thickness direction of the paper surface in FIG.
- an electromagnetic force F is generated in the same manner as described above, and the molten metal M is driven from right to left as indicated by an arrow in the figure, and then discharged from the tip of the discharge pipe portion 205a to the outside and received by the receiving box 207. .
- the N pole of the permanent magnet of the magnetic field device 4 is opposed to the molten metal drive chamber constituent part, but it is natural that the S pole may be opposed to the molten metal drive chamber structural part. It is.
- a drive chamber is provided, and a current I is passed between a pair of electrodes provided therein, and a magnetic field is applied to the current I so that the molten metal is efficiently driven by a stirrer.
- a molten metal or a non-ferrous metal is a fluid
- the force applied to the fluid is dispersed in all directions. Therefore, it cannot stir efficiently.
- the present inventor notices that when the stirring force is applied to the molten metal in a limited space (driving chamber DR), the magnitude and direction of the force can be defined and the molten metal can be driven with high efficiency. It was.
- this limited space is formed by the tubular or U-shaped (channel type) molten metal driving chamber constituting section 5.
- the inventor conducted an experiment to confirm the effect of the present invention.
- the results are as follows.
- the substance to be agitated in this case a metal and a non-ferrous metal melt, both have high electrical conductivity (low resistance), so the applied voltage between the electrodes is small. For this reason, power consumption can be suppressed to an extremely small value. Even if the present invention is applied to a so-called large furnace, the value is estimated to be 10 Kw or less. In the case of the conventional type stirring device (the most common linear type furnace bottom stirring device), it is understood that the permanent magnet type molten metal stirring device of the present invention is superior, considering that power consumption of 500 Kw or more is necessary.
- the driving chamber DR (acceleration space AS) is partitioned and the current I flows therein, and the current I leaks outside the driving chamber DR.
- the electromagnetic force F according to Fleming's law is generated by applying a magnetic field to the current I, and the driving force is applied to the molten metal M in the driving chamber DR as a confined space by the electromagnetic force F.
- the molten metal M in the driving chamber DR can be reliably driven to rotate the molten metal M in the furnace body with high efficiency, or the molten metal M in the furnace body can be pumped out to the outside with high efficiency. Can do.
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Abstract
Description
溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内の前記溶湯を攪拌するための攪拌装置と、
を備え、
前記攪拌装置は、
前記溶湯室内に配置されて、溶湯に駆動力を与えるための且つ両端が開放した駆動室を形成する、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記炉本体外に配置された永久磁石で構成した磁場装置であって、N極及びS極の一方の極が前記炉本体に対向しており、前記一方の極からの磁力線が、前記電流と交差して、前記駆動室内において、溶湯を一端から他端に向けて駆動する電磁力を発生させる、磁場装置と、
を備えるものとして構成される。
溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内の前記溶湯を攪拌するための攪拌装置と、
を備え、
前記攪拌装置は、
前記炉本体外に配置されて、前記炉本体の外側壁との共同によって駆動室を形成する溶湯駆動室構成部であって、前記駆動室は前記溶湯室と、前記側壁に開口された溶湯の流出口及び流入口を介して連通している、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記炉本体外及び前記溶湯駆動室構成部外に配置された永久磁石で構成した磁場装置であって、N極及びS極の一方の極が前記溶湯駆動室構成部に対向しており、前記一方の極からの磁力線が、前記電流と交差して、溶湯を、前記駆動室から前記溶湯室に流入させると共に前記溶湯室から前記駆動室に流出させる、電磁力を発生させる、磁場装置と、
を備えるものとして構成される。
溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内の前記溶湯を攪拌するための攪拌装置と、
を備え、
前記攪拌装置は、
前記炉本体外に配置され且つ駆動室を有する溶湯駆動室構成部であって、前記駆動室は前記溶湯室と、前記炉本体の側壁に開口された溶湯の流出口及び流入口を介して連通している、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記溶湯駆動室構成部と前記炉本体の側壁とによって溶湯から隔離された状態に形成された磁場装置の収納空間内に収納された永久磁石で構成した磁場装置であって、
N極及びS極の一方の極が前記溶湯駆動室構成部における前記に対向しており、
前記一方の極からの磁力線が、前記電流と交差して、溶湯を、前記駆動室から前記溶湯室に流入させると共に前記溶湯室から前記駆動室に流出させる、電磁力を発生させる、
磁場装置と、
を備えるものとして構成される。
溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内に配置され、前記溶湯を外部に汲み出すポンプ装置と、
を備え、
前記ポンプ装置は、
溶湯に駆動力を与えるための溶湯駆動室構成部であって、一端が前記溶湯室内において開放し、他端が前記溶湯室外に開放する、駆動室を形成する、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記炉本体外に配置された永久磁石で構成した磁場装置であって、N極及びS極の一方の極が前記炉本体に対向しており、前記一方の極からの磁力線が、前記電流と交差して、前記駆動室内において、溶湯を一端から他端に向けて駆動する電磁力を発生させる、磁場装置と、
を備えるものとして構成される。
この際、電源制御盤6からの出力を制御することにより、電極7a、7b間に流れる電流Iの値を変化させて、前記の電磁力Fの強さを制御し、溶湯Mを回転駆動する力即ち溶湯Mの回転速度を制御することができる。さらには、電源制御盤6により、配線9,9への出力の極性を切り換えて、電磁力Fの向きを変え、炉本体1内の溶湯Mの回転方向を逆とすることもできる。
また、図14中紙面の厚さ方向に一対の電極7a、7b(7aのみ表示)を配置している。これにより、前述と同様に電磁力Fが生じ、溶湯Mは同図に矢印で示すように右から左に駆動され、次いで吐出管部205aの先端から外部に吐出され、受箱207で受けられる。
したがって効率よく攪拌することができない。しかるに、本発明者は、攪拌力を限られた空間(駆動室DR)内で溶湯に作用させると、その力の大きさと方向を規定して、溶湯を高効率で駆動することができることに気がついた。本発明はまさにこの本発明者に特有の知得に基づいてなされたものである。実施形態レベルで言えば、この限られた空間(駆動室DR)を筒状あるいはU字型(チャネル型)の溶湯駆動室構成部5によって作り上げている。
電流(Amp) 流速(V) 圧力(P) 流量(m 3 /min)(Al換算)
20Amp 15~20 0.05Kg/cm2 0.043~0.057
40Amp 35~45 0.1 Kg/cm2 0.1~0.13
80Amp 50~60 0.15Kg/cm2 0.144~0.173
Claims (13)
- 溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内の前記溶湯を攪拌するための攪拌装置と、
を備え、
前記攪拌装置は、
前記溶湯室内に配置されて、溶湯に駆動力を与えるための且つ両端が開放した駆動室を形成する、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記炉本体外に配置された永久磁石で構成した磁場装置であって、N極及びS極の一方の極が前記炉本体に対向しており、前記一方の極からの磁力線が、前記電流と交差して、前記駆動室内において、溶湯を一端から他端に向けて駆動する電磁力を発生させる、磁場装置と、
を備えることを特徴とする永久磁石式溶湯攪拌装置。 - 前記溶湯駆動室構成部は、単独で前記駆動室を構成している、ことを特徴とする請求項1に記載の永久磁石式溶湯攪拌装置。
- 前記溶湯駆動室構成部は、前記炉本体の内壁との協同により前記駆動室を構成している、ことを特徴とする請求項1に記載の永久磁石式溶湯攪拌装置。
- 前記溶湯駆動室構成部は、両端が開放した筒状として構成されていることを特徴とする請求項2に記載の永久磁石式溶湯攪拌装置。
- 前記溶湯駆動室構成部は、チャネル状として構成されていることを特徴とする請求項3に記載の永久磁石式溶湯攪拌装置。
- 前記一対の電極は、前記駆動室を横切って対向するように、前記駆動室内に取り付けられている、ことを特徴とする請求項1記載の永久磁石式溶湯攪拌装置。
- 前記一対の電極は縦方向に対向するように設けられ、前記磁場装置は前記炉本体の側壁に対向して配置されて横向きに磁力線を出す/磁力線が入るように構成され、これにより前記電磁力を横向きのものとして発生させる、ことを特徴とする請求項6に記載の永久磁石式溶湯攪拌装置。
- 前記一対の電極は横方向に対向するように設けられ、前記磁場装置は前記炉本体の側壁に対向して配置されて横向きに磁力線を出す/磁力線が入るように構成され、これにより前記電磁力を縦向きのものとして発生させる、ことを特徴とする請求項6に記載の永久磁石式溶湯攪拌装置。
- 前記一対の電極は横方向に対向するように設けられ、前記磁場装置は前記炉本体の底壁に対向して配置されて縦向きに磁力線を出す/磁力線が入るように構成され、これにより前記電磁力を横向きのものとして発生させる、ことを特徴とする請求項6に記載の永久磁石式溶湯攪拌装置。
- 前記駆動室における前記両端間の距離が、前記一対の電極間の距離以上である、ことを特徴とする請求項1乃至9の1つに記載の永久磁石式溶湯攪拌装置。
- 溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内の前記溶湯を攪拌するための攪拌装置と、
を備え、
前記攪拌装置は、
前記炉本体外に配置されて、前記炉本体の外側壁との協同によって駆動室を形成する溶湯駆動室構成部であって、前記駆動室は前記溶湯室と、前記側壁に開口された溶湯の流出口及び流入口を介して連通している、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記炉本体外及び前記溶湯駆動室構成部外に配置された永久磁石で構成した磁場装置であって、N極及びS極の一方の極が前記溶湯駆動室構成部に対向しており、前記一方の極からの磁力線が、前記電流と交差して、溶湯を、前記駆動室から前記溶湯室に流入させると共に前記溶湯室から前記駆動室に流出させる、電磁力を発生させる、磁場装置と、
を備えることを特徴とする永久磁石式溶湯攪拌装置。 - 溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内の前記溶湯を攪拌するための攪拌装置と、
を備え、
前記攪拌装置は、
前記炉本体外に配置され且つ駆動室を有する溶湯駆動室構成部であって、前記駆動室は前記溶湯室と、前記炉本体の側壁に開口された溶湯の流出口及び流入口を介して連通している、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記溶湯駆動室構成部と前記炉本体の側壁とによって溶湯から隔離された状態に形成された磁場装置の収納空間内に収納された永久磁石で構成した磁場装置であって、
N極及びS極の一方の極が前記溶湯駆動室構成部における前記駆動室に対向しており、
前記一方の極からの磁力線が、前記電流と交差して、溶湯を、前記駆動室から前記溶湯室に流入させると共に前記溶湯室から前記駆動室に流出させる、電磁力を発生させる、
磁場装置と、
を備えることを特徴とする永久磁石式溶湯攪拌装置。 - 溶湯を収納する溶湯室を有する炉本体と、
前記炉本体内に配置され、前記溶湯を外部に汲み出すポンプ装置と、
を備え、
前記ポンプ装置は、
溶湯に駆動力を与えるための溶湯駆動室構成部であって、一端が前記溶湯室内において開放し、他端が前記溶湯室外に開放する、駆動室を形成する、溶湯駆動室構成部と、
前記駆動室内に配置され、溶湯の存在下において、前記駆動室内に電流を流すための、一対の電極と、
前記炉本体外に配置された永久磁石で構成した磁場装置であって、N極及びS極の一方の極が前記炉本体に対向しており、前記一方の極からの磁力線が、前記電流と交差して、前記駆動室内において、溶湯を一端から他端に向けて駆動する電磁力を発生させる、磁場装置と、
を備えることを特徴とする永久磁石式汲み出しポンプ付溶解炉。
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EP2708839B1 (en) | 2016-09-21 |
JP2014035131A (ja) | 2014-02-24 |
JP5819270B2 (ja) | 2015-11-18 |
AU2012365869A1 (en) | 2014-02-27 |
CN203550641U (zh) | 2014-04-16 |
CN103575121A (zh) | 2014-02-12 |
EP2708839A1 (en) | 2014-03-19 |
US9593884B2 (en) | 2017-03-14 |
AU2012365869B2 (en) | 2016-01-14 |
EP2708839A4 (en) | 2014-10-29 |
KR101644978B1 (ko) | 2016-08-02 |
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