JP2017053026A - Aluminum melting device and aluminum regeneration system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To melt an aluminum material in a state preventing the formation of an oxide film as much as possible and improving thermal energy efficiency while minimizing and simplifying the apparatus itself.SOLUTION: A superheated steam generating part including a lid case for airtightly closing an upper opening of a crucible and a fluid heating pipe supported by the lid case forms a unit attachable to and detachable from the crucible. The fluid heating pipe includes: first and second feeding points respectively provided in first and second ends; a water introduction port provided in one of the first and second ends to receive steam or misty water supplied from a water supply part; and one or more steam discharge ports provided in an intermediate region between the first and second ends so as to be located in a melting space formed by the lid case and the crucible to discharge superheated steam generated by being heated according to voltage application to the first and second feeding points.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an aluminum melting apparatus for melting aluminum materials such as aluminum chips and aluminum chips, and an aluminum regeneration system for melting the aluminum material and extracting an aluminum alloy from the molten aluminum material.

  An aluminum melting apparatus for melting aluminum material is used as a part of a system for regenerating metal aluminum from aluminum material. The aluminum material is charged into a melting furnace having an upper opening, and the aluminum material is burned. Have proposed an open well type aluminum melting apparatus that is heated directly or indirectly.

  In this open well method, the aluminum material accommodated in the melting furnace is directly heated with a burner (see, for example, Patent Documents 1 and 2 below), and the outer peripheral wall of the melting furnace is heated with a burner. There is an indirect heating type (see Patent Document 3 below) that indirectly heats the aluminum material.

  However, any type of apparatus has a problem that an oxide film is easily formed on the surface of the melted aluminum material, and the recovery efficiency of metallic aluminum is poor. In addition, there is also a problem that the melting speed of the aluminum material is easily different between the portion hit by the burner and the portion not hit, and it is difficult to efficiently melt the aluminum material.

  In order to solve this problem, the crucible is placed in a substantially sealed heating chamber formed by a box-shaped furnace body, and superheated steam is introduced into the heating chamber, so that the aluminum contained in the crucible The aluminum material was introduced into the melting furnace by introducing aluminum material into an aluminum melting apparatus (see Patent Document 4 below) for melting the material and a substantially sealed melting furnace, and introducing superheated steam into the melting furnace. An aluminum melting apparatus (see Patent Document 5 below) for melting an aluminum material has been proposed.

  The aluminum melting apparatus described in Patent Documents 4 and 5 can reduce the generation of a new oxide film on the surface of the melted aluminum as compared with the open well type melting apparatus. This is useful in that the contained crucible can be uniformly heated as a whole.

  However, since the furnace body or the melting furnace independently forms a sealed melting space, the apparatus itself is increased in size, and the superheated steam generator disposed apart from the furnace body or the melting furnace is used. There is a problem that piping equipment for introducing the generated superheated steam to the furnace body or the melting furnace by piping is required, and that heat energy is lost when superheated steam is introduced.

  Furthermore, in the aluminum melting apparatus described in Patent Document 4, although the superheated steam introduced into the heating chamber formed by the furnace body can uniformly heat the entire outer peripheral surface of the crucible, When attention is paid to the accommodated aluminum material, there is also a problem that a difference in melting speed tends to occur between a portion close to the peripheral wall of the crucible and a portion separated from the crucible.

Japanese Patent No. 3009123 Japanese Patent Application Laid-Open No. 7-146073 Japanese Patent Laid-Open No. 10-332272 Japanese Patent No. 5348902 JP-A-4-13820

  The present invention has been made in view of such a conventional technique, and in a state where the formation of an oxide film is prevented as much as possible and the thermal energy efficiency is improved while miniaturizing and simplifying the apparatus itself. An object is to provide an aluminum melting apparatus capable of melting a material.

  In addition, the present invention is capable of melting an aluminum material in a state in which the formation of an oxide film is prevented as much as possible and the thermal energy efficiency is improved while achieving miniaturization and simplification. An object of the present invention is to provide an aluminum regeneration system capable of improving the recovery rate of the recycled aluminum alloy.

  In order to achieve the above object, the present invention comprises a crucible having an opening at the top and a superheated steam generator, and the superheated steam generator is detachably attached to the crucible so as to airtightly cover the opening. A lid case that forms a hermetically sealed melting space together with the crucible, and a superheated steam that is supported by the lid case and heated from the water supply unit by being heated according to voltage application or from the water in the form of mist The fluid heating tube has a first and second power supply for voltage application provided at a first end on one side in the longitudinal direction and a second end on the other side, respectively. A point, a water inlet provided in one of the first and second ends to receive the steam or mist-like water supplied from the water supply part in the pipe, and the superheated steam generated in the pipe Provided in an intermediate region between the first and second ends for discharge. One or a plurality of vapor discharge ports, the first and second ends extending outward from the lid case, and the vapor discharge port is located in the melting space when the lid case is attached to the crucible. The lid case is supported so as to be located inside, and the lid case is detachably attached to the crucible while supporting the fluid heating tube, and includes the lid case and the fluid heating tube Provided is an aluminum melting apparatus in which the superheated steam generator is a unit that can be attached to and detached from the crucible.

Preferably, the fluid heating pipe is inserted into first and second mounting holes formed in the lid case, and first and second piping members whose outer ends form the first and second ends, respectively. And an intermediate piping member that fluidly connects the inner ends of the first and second piping members to form the intermediate region.
The intermediate piping member is detachably connected to the inner end portion of the first piping member, and is detachably connected to the inner end portion of the second piping member. A second straight line portion extending in parallel, a central straight line portion extending in parallel between the first and second straight line portions, and a corresponding U-shaped direction change in a plan view connecting adjacent linear portions. It is supposed that it has a part integrally.

  Preferably, the crucible has a crucible main body having an upper end defining the opening, and a crucible side flange extending radially outward from the upper end of the crucible main body in plan view, The lid case main body is formed with the first and second mounting holes and the lower end side is open, and the lid case side flange extends radially outward from the lower end portion of the lid case main body in a plan view. The lid case and the crucible are connected in an airtight and detachable manner in a state where the lid case side flange and the crucible side flange are in contact with each other.

  In order to achieve the above object, the present invention includes a crucible having an opening at the top and a superheated steam generator, and the superheated steam generator is detachable from the crucible so as to cover the opening in an airtight manner. A lid case that is attached to the crucible and forms a sealed melting space together with the crucible, and is supported by the lid case and heated from the water supply unit by being heated according to voltage application, or from mist-like water A fluid heating pipe for generating superheated steam, wherein the fluid heating pipe is provided with a first and a first for voltage application provided at each of a first end on one side in the longitudinal direction and a second end on the other side. 2 feeding points, a water inlet provided in one of the first and second ends for receiving steam or mist-like water supplied from the water supply section into the pipe, and superheat generated in the pipe An intermediate region between the first and second ends is provided for releasing steam. One or a plurality of vapor discharge ports formed, the first and second end portions extend outward from the lid case, and when the lid case is attached to the crucible, The crucible is supported by the lid case so as to be located in the melting space, and the crucible includes a crucible body whose upper end portion defines the opening, and a crucible extending radially outward from the upper end portion of the crucible body in plan view. A side flange, and the lid case has a lid case main body having a lower end opened, and a lid case side flange extending radially outward in plan view from the lower end of the lid case main body, The lid case is airtightly and detachably connected to the crucible with the lid case side flange and the crucible side flange in contact with each other, and the superheated steam generation unit including the lid case and the fluid heating tube is connected to the crucible. Removable for Providing an aluminum melting apparatus being a unit.

  In the various configurations of the aluminum melting apparatus according to the present invention, preferably, the superheated steam generator is configured such that the lower end side is located in the melting space and the upper end side is upward when the lid case is attached to the crucible. A pivot shaft supported by the lid case so as to be rotatable about an axis thereof, and the pivot shaft so as to be positioned in the melting space when the lid case is mounted on the crucible. And a stirring member supported on the lower end side.

The pivot shaft is arranged along the vertical direction at the radial center of the lid case, and the stirring member is along the vertical direction at a position displaced radially outward from the axis of the pivot shaft, It may have a plurality of stirring rods supported by the rotating shaft so as to rotate around the axis of the rotating shaft in accordance with the rotation around the axis of the rotating shaft.
The plurality of stirring bars are spaced apart from each other in the circumferential direction with respect to the axis of the rotation shaft.

  The present invention also provides a crucible having an opening at the top, a conveying device that supports and moves the crucible, a heating device that generates heat for melting the aluminum material in the crucible, and the crucible. An aluminum regeneration system comprising a squeezing device for squeezing a recycled aluminum alloy from a melted aluminum material, a melting area where a melting process is performed by the heating device, and a processing station having a squeezing area where a squeezing process is performed by the pressing device. I will provide a.

  The heating device is detachably attached to the crucible so as to cover the upper opening in an airtight manner, and a lid case capable of forming a hermetically sealed melting space together with the crucible, supported by the lid case, and adapted to voltage application. The fluid heating pipe that generates superheated steam from the steam supplied from the water supply section or mist-like water by being heated, and the crucible located in the melting area and the lid case relative to each other in the vertical direction. And an elevating mechanism for heating that is brought into contact with and separated from the heater.

  The fluid heating pipe is supplied from first and second feeding points for voltage application provided at a first end on one side in the longitudinal direction and a second end on the other side, and the water supply unit. A water inlet provided at one of the first and second ends for receiving steam or mist water into the tube, and the first and second ends for discharging superheated steam generated in the tube. One or a plurality of vapor outlets provided in an intermediate region between the first and second ends, the first and second end portions extending outward from the lid case, and the lid case to the crucible At the time of mounting, the vapor discharge port is supported by the lid case so as to be positioned in the melting space.

  The heating elevating mechanism can present a melting operation state in which the lid case is attached to the crucible to form the melting space and a standby state in which the lid case and the crucible are relatively separated in the vertical direction. It is said.

  The pressing device has an outer peripheral wall substantially along the inner surface of the crucible, and the outer peripheral wall is provided with a mesh member provided with a plurality of passage holes penetrating vertically, and the pressing unit is installed in the pressing area. A pressing elevating mechanism for moving the crucible and the mesh member relative to each other in the vertical direction;

  The squeezing lifting mechanism is configured to squeeze the recycled aluminum alloy from the molten aluminum material by pressing the mesh member toward the inner surface of the crucible, and relatively move the mesh member and the crucible vertically. The stand-by state to be separated can be displayed.

Preferably, the heating device is rotatably supported around the axis so that the lower end side is located in the melting space and the upper end side extends upward in a state where the lid case is mounted on the crucible. A rotating shaft, a stirring member supported on the lower end side of the rotating shaft so as to be positioned in the melting space in a state where the lid case is attached to the crucible, and an upper end side of the rotating shaft And an agitation drive motor that rotatively drives the motor around the axis.
In this case, the heating elevating mechanism is configured to integrally elevate and lower the lid case and the stirring drive motor.

  Preferably, the mesh member is detachably attached to the pressing lift mechanism.

In one form of the aluminum regeneration system according to the present invention, the processing station further has a charging area, and the charging area, the melting area, and the pressing area are arranged in series in this order.
In this case, the said conveying apparatus is comprised so that it may move in order of the said input area, the said melting area, and the said pressing area in the state guided by the guide rail.

  In the one aspect, the processing station may include a pair of bearing portions that lock a pair of inclined reference shafts provided in the crucible so as to be rotatable about an axis.

  Instead, the transport device includes a mounting table on which the crucible is mounted, a moving unit that moves the mounting table, a vertical frame that is erected on the mounting table, and a pair provided on the crucible. A pair of bearing portions provided on the vertical frame so as to rotatably support the tilt reference axis about the axis, and a tilt drive motor for tilting the crucible about the pair of tilt reference axes. obtain.

In the other form of the aluminum regeneration system according to the present invention, the processing station further has a charging area, and the charging area, the melting area, and the pressing area are sequentially turned to one side in the circumferential direction around the processing center. Be placed.
In this case, the said conveying apparatus shall have a turntable which can move the said crucible around the said process center.

Preferably, the processing station further has a discharge area for discharging the residue remaining in the crucible on the way from the pressing area to the input area on the one side in the circumferential direction around the processing center. .
The charging area, the melting area, the pressing area, and the discharging area are arranged at equal intervals around the processing center, and the turntable is configured to support four crucibles at intervals of 90 degrees around the processing center. .

  Preferably, the transfer device includes a turntable drive motor that rotationally drives the turntable around the processing center, a vertical frame that is erected on the turntable, and a pair of inclined reference shafts that are provided on the crucible. It may have a pair of bearing portions provided on the vertical frame so as to be pivotably supported about an axis, and a tilt drive motor for tilting the crucible around the pair of tilt reference axes.

According to the aluminum melting apparatus according to the present invention, a crucible having an upper opening and a lid case of a superheated steam generator that is detachably attached to the crucible form a sealed melting space, and the lid case Since the superheated steam generated by the fluid heating pipe of the supported superheated steam generator is directly discharged into the melting space, the oxide film can be reduced while miniaturizing and simplifying the apparatus itself. The aluminum material can be melted in a state where the generation of heat is prevented as much as possible and the thermal energy efficiency is improved.
In addition, since the aluminum material can be put into the crucible through the upper opening exposed by removing the superheated steam generator including the lid case and the fluid heating pipe, the molten metal aluminum can be taken out. The entire aluminum recycling system including can be reduced in size.

  In addition, according to the aluminum regeneration system of the present invention, aluminum can be produced in a state in which the formation of an oxide film is prevented as much as possible and the thermal energy efficiency is improved by a heating device capable of miniaturizing and simplifying the device itself. The material can be melted, and the recycled aluminum alloy can be rapidly squeezed from the molten aluminum material melted by the heating device by the pressing device, and the recovery rate of the recycled aluminum alloy can be improved.

FIG. 1 is a perspective view of an embodiment of an aluminum melting apparatus according to the present invention. FIG. 2 is a side view of the aluminum melting apparatus. FIG. 3 is a plan view of the aluminum melting apparatus. FIG. 4 is an exploded perspective view of the aluminum melting apparatus. FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a lower perspective view of the superheated steam generator in the aluminum melting apparatus. 8 is a cross-sectional view taken along line VIII-VIII in FIG. FIG. 9 is a front view of an embodiment of the aluminum regeneration system according to the present invention. 10 (a) and 10 (b) are a front view and a side view, respectively, of the transfer device and the crucible in the aluminum recycling system shown in FIG. 11 (a) and 11 (b) are front views of the melting area in the aluminum regeneration system shown in FIG. 9, showing a melting work state and a standby state of the heating device, respectively. 12 (a) to 12 (c) are front views of a pressing area in the aluminum regeneration system shown in FIG. 12 (a) and 12 (b) show a standby state and a pressing work state of the pressing device, respectively. FIG. 12 (c) shows a state in which the mesh member in the pressing device is separated from the pressing lifting mechanism and left in the crucible. FIGS. 13A and 13B are front views of the take-out area in the aluminum recycling system shown in FIG. 9 and show the horizontal posture and the inclined posture (take-out posture) of the crucible, respectively. FIG. 14 is a front view of a modified example of the transfer device in the aluminum recycling system shown in FIG. FIG. 15 is a plan view of another embodiment of the aluminum regeneration system according to the present invention. FIG. 16 is a partial cross-sectional view of the aluminum regeneration system taken along line XVI-XVI in FIG. FIG. 17 is a partial cross-sectional view of the aluminum regeneration system taken along line XVII-XVII in FIG.

Hereinafter, an embodiment of an aluminum melting apparatus according to the present invention will be described with reference to the accompanying drawings.
1 to 3 show a perspective view, a side view, and a plan view of an aluminum melting apparatus 1 according to the present embodiment, respectively.
4 is an exploded perspective view of the aluminum melting apparatus 1. FIGS. 5 and 6 are a sectional view taken along the line VV in FIG. 2 and a sectional view taken along the line VI-VI in FIG. Show.

  The aluminum melting apparatus 1 according to the present embodiment is used as a part of an aluminum regeneration system that regenerates metallic aluminum from aluminum materials such as aluminum chips and aluminum chips, and is configured to melt aluminum materials. Has been.

  Specifically, as shown in FIGS. 1 to 6, the aluminum melting apparatus 1 includes a crucible 10 and a superheated steam generator 50.

  The crucible 10 has an opening 10a at the top, and is formed so as to accommodate an aluminum material put through the upper opening 10a.

  As shown in FIGS. 4 and 6, in the present embodiment, the crucible 10 includes a crucible body 11 whose upper end portion defines the opening 10a, and a radially outer side in plan view from the upper end portion of the crucible body 11. And a crucible side flange 15 extending in the direction.

  The superheated steam generator 50 includes a lid case 60 and a fluid heating pipe 70 supported by the lid case 60.

  As shown in FIG. 6 and the like, the lid case 60 is detachably attached to the crucible 10 so as to airtightly cover the upper opening 10a of the crucible 10, and forms a sealed melting space 100 together with the crucible 10. It is configured as follows.

  In the present embodiment, the lid case 60 includes a lid case body 61 having an opening 60a on the lower side, and a lid case side flange 65 extending radially outward from a lower end portion of the lid case body 61 in a plan view. The lid case side flange 65 is connected to the crucible 10 in contact with the crucible side flange 15, thereby forming the melting space 100.

  The fluid heating pipe 70 is a long hollow member formed of a conductive material that is heated in response to voltage application such as Inconel, Hastelloy, or stainless steel, and a water supply unit such as a boiler provided in the aluminum regeneration system. It is configured to receive steam or mist-like water supplied from (not shown) and to convert the steam or mist-like water into superheated steam and release it to the outside by being heated according to voltage application. ing.

  Specifically, the fluid heating tube 70 includes first and second voltages for voltage application provided at the first end 70 (1) on one side in the longitudinal direction and the second end 70 (2) on the other side, respectively. Provided at one of the first and second end portions 70 (1), 70 (2) for receiving feeding points 71, 72 and steam or mist-like water supplied from the water supply portion into the pipe. A water introduction port 75 and one or a plurality of vapor discharge ports 76 provided in an intermediate region 70 (M) between the first and second end portions for discharging superheated steam generated in the pipe; Yes.

  In the fluid heating tube 70 having such a configuration, the first and second end portions 70 (1) and 70 (2) extend outward from the lid case 60 and to the crucible 10 of the lid case 60. The vapor discharge port 76 is supported by the lid case 60 so as to be positioned in the melting space 100 when mounted.

  Thus, in the present embodiment, the lid case 60 is detachably attached to the crucible 10 while supporting the fluid heating tube 70, and the lid case 60 and the fluid heating tube 70 are connected to each other. The superheated steam generator 50 including the unit forms a detachable unit with respect to the crucible 10.

According to the aluminum melting apparatus 1 having such a configuration, the following effects can be obtained.
That is, an intermediate region 70 (M) of the fluid heating pipe 70 that generates superheated steam by being heated according to voltage application is positioned in the melting space 100 that is formed airtight by the crucible 10 and the lid case 60. The aluminum material hermetically accommodated in the melting space 100 is melted by the superheated steam discharged from the steam discharge port 76 formed in the intermediate region 70 (M). As a result, the aluminum material is melted.

  Therefore, it is possible to reduce the generation of a new oxide film on the surface of the melted aluminum material as much as possible as compared with an open well type aluminum melting apparatus, and improve the recovery efficiency of metallic aluminum. be able to.

  Moreover, since high-temperature superheated steam is supplied to the entire melting space 100, the entire aluminum material accommodated in the melting space 100 is melted evenly as compared with a device that heats the aluminum material by a burner. The melting energy required for melting the entire aluminum material to be treated can be reduced.

  Further, since the intermediate region 70 (M) of the fluid heating pipe 70 to be heated is disposed in the melting space 100, the melting space 100 is added to the superheated steam discharged from the fluid heating pipe 70, and the fluid Heating is also performed by the amount of heat of the heating tube 70 itself, and the aluminum material in the melting space 100 can be melted more efficiently.

  Further, unlike the open well method, there is a conventional aluminum melting apparatus configured to accommodate an aluminum material in a sealed space and to melt the aluminum material using superheated steam. Compared to this conventional configuration, the aluminum melting apparatus 1 can achieve cost reduction by miniaturization of the melting apparatus itself and simplification of facilities necessary for aluminum regeneration treatment.

  In this type of conventional apparatus, the melting furnace itself forms a sealed space for housing the aluminum material, and the superheated steam generator is spaced apart from the melting furnace, so the melting apparatus itself is large. Problem arises. Furthermore, equipment for supplying the superheated steam generated by the superheated steam generator to the melting furnace is required, as well as equipment for introducing aluminum material into the melting furnace and equipment for taking out metallic aluminum from the melting furnace. Is also complicated.

  On the other hand, in the aluminum melting apparatus 1 according to the present embodiment, the lid case 60 of the superheated steam generator 50 and the crucible 10 cooperate to form a melting space 100. The device itself can be reduced in size.

  Furthermore, the opening 10a of the crucible 10 that includes the lid case 60 and the fluid heating tube 70 and that is exposed by removing the superheated steam generation unit 50 that is detachably unitized with the crucible 10 from the crucible 1. The aluminum material such as an aluminum chip can be introduced into the crucible 10 and the melted aluminum material can be taken out from the crucible 10, and the entire aluminum regeneration system including the aluminum melting apparatus 1 can be reduced in size and Simplification can be achieved.

  In the aluminum melting apparatus 1, the fluid heating pipe 70 is supported by the lid case 60 that forms the melting space 100 together with the crucible 10, and superheated steam is generated in the melting space 100. Has been.

  Therefore, it is not necessary to separately provide equipment for supplying the superheated steam generated by the superheated steam generation unit 50 to the melting space 100, and this also makes it possible to reduce the size and cost of the apparatus itself.

FIG. 7 shows a lower perspective view of the superheated steam generator 50.
FIG. 8 is a sectional view taken along line VIII-VIII in FIG.
As shown in FIGS. 5 to 8, in the present embodiment, the fluid heating tube 70 is inserted into first and second mounting holes 60 (1) and 60 (2) formed in the lid case 60. And first and second piping members 81 and 82 whose outer ends form the first and second ends 70 (1) and 70 (2), respectively, and the first and second piping members 81 and 82, respectively. And an intermediate piping member 85 that fluidly connects the inner ends of the two and forms the intermediate region 70 (M).

As shown in FIGS. 5 and 8, the intermediate piping member 85 includes a first straight portion 85 (1) that is detachably connected to an inner end portion of the first piping member 81, and the second piping member 82. A second straight portion 85 (2) that is detachably connected to the inner end portion of the first straight portion 85 (1) in parallel with the first straight portion 85 (1) in plan view, and the first and second straight portions 85 (1), The central straight line portion 85 (M) extending in parallel with each other in the plan view between 85 (2) and the corresponding end portions of the adjacent straight line portions 85 (1), 85 (M), 85 (2) are connected to each other. It has a U-shaped direction changing portion 85 (U) in plan view.
In the present embodiment, as shown in FIG. 5, the intermediate piping member 85 includes six central straight portions 85 (M).

  According to such a configuration, the first and second end portions 70 (1), 70 (2) provided with the first and second feeding points 71, 72 and provided with the water introduction port 75 on one side. ) To the outside of the melting space 100, the intermediate region 70 (M) provided with the steam discharge port 76 can be spread over substantially the entire area of the melting space 100 in plan view, It can be efficiently supplied to the entire melting space 100.

Next, an example of an aluminum regeneration system 200A including the aluminum melting apparatus 1 will be described.
FIG. 9 shows a front view of the aluminum regeneration system 200A.

As shown in FIG. 9, the aluminum regeneration system 200 </ b> A includes the crucible 10, a transport device 230 that supports and can move the crucible 10, and an amount of heat for melting the aluminum material in the crucible 10. A heating device 300 including the superheated steam generation unit 50 to be generated, a squeezing device 400 for squeezing a regenerated aluminum alloy from an aluminum material melted in the crucible 10, and a melting area 502 in which melting processing by the heating device 300 is performed. And the processing station 500 which has the pressing area 503 where the pressing process by the said pressing apparatus 400 is performed is provided.
The crucible 10 and the superheated steam generator 50 among the constituent members of the aluminum regeneration system 200 </ b> A form the aluminum melting device 1.

10 (a) and 10 (b) show a front view and a side view of the crucible 10 and the transfer device 230, respectively.
As shown in FIGS. 9, 10 (a) and 10 (b), the crucible 10 is accommodated in a crucible case 210, and the transfer device 230 moves the crucible case 210 to a melting area 502 and a pressing area 503. It is comprised so that it can be made.

The transport device 230 includes a mounting table 232 on which the crucible case 210 is mounted in a separable manner, and a moving unit that moves the mounting table 232.
In the present embodiment, the moving means includes wheels 235 mounted on the mounting table 232 described above.

In the aluminum regeneration system 200A, the processing station 500 further has a charging area 501 that is a work space for charging the aluminum material into the crucible 10.
As shown in FIG. 9, the charging area 501, the melting area 502, and the pressing area 503 are arranged in series in this order.

  In the present embodiment, the processing station 500 includes a guide rail 510 that guides the transport device 230 in the order of an input area 501, a melting area 502, and a pressing area 503, and the transport device 230 includes the guide rail. It is comprised so that it may move in the state guided by 510.

  As shown in FIG. 9, in addition to the lid case 60 and the fluid heating pipe 70 (not shown in FIG. 9, see FIG. A heating elevating mechanism 310 is provided.

  The heating elevating mechanism 310 is configured to relatively contact and separate the crucible 10 and the lid case 60 that are located in the melting area 502 in the vertical direction.

That is, the heating elevating mechanism 310 includes a melting operation state in which the lid case 60 is mounted on the crucible 10 to form the melting space 100 (see FIG. 6 and the like), and the lid case 60 is separated from the crucible 10. It is configured to selectively reveal the separated standby state.
In the present embodiment, the heating elevating mechanism 310 moves the lid case 60 up and down, thereby moving the lid case 60 and the crucible 10 relatively up and down.

11 (a) and 11 (b) show a melting work state and a standby state of the heating device 300, respectively.
As shown in FIGS. 9, 11 (a) and 11 (b), in this embodiment, the processing station 500 has a melting rack 520 that defines a melting area 502.

  The elevating mechanism 310 for heating is connected to the elevating drive unit 320 such as a hydraulic elevating device installed on the melting rack 520 and the upper end side of the elevating drive unit 320 and is moved up and down by the elevating drive unit 320. The lid case 60 is supported directly or indirectly by the support rod 330.

In the present embodiment, the heating device 300 has a stirring function.
Specifically, as shown in FIGS. 9, 11 (a) and 11 (b), the heating device 300 has a lower end side in the melting space 100 in the melting work state in which the lid case 60 is mounted on the crucible 10. The lid case 60 is mounted on the crucible 10 and the pivot shaft 350 is supported on the lid case 60 so as to be rotatable about the axis along the vertical direction so that the upper end side extends upward. The stirring member 360 supported on the lower end side of the rotating shaft 350 so as to be positioned in the melting space 100 in the melting operation state, and the rotating shaft 350 so as to rotate the rotating shaft 350 about the axis. And a stirring drive motor 370 operatively connected to the upper end side.

  That is, in the present embodiment, the rotation shaft 350 is supported by the lid case 60 forming the superheated steam generator 50 so as to be rotatable about an axis, and one end side of the rotation shaft 350 (the melting space 100). The stirring member 360 is supported on the inner side), and the stirring drive motor 370 is configured to rotationally drive the other end of the rotating shaft 350 about the axis.

In this case, the heating elevating mechanism 310 is configured to raise and lower the lid case 60 and the agitation drive motor 370 integrally.
In the present embodiment, as shown in FIG. 9 and the like, the heating elevating mechanism 310 has a support frame 340 supported by the lower end portion of the support rod 330.

  The support frame 340 is connected to the lid case 60 via a connecting rod 345 so as to support the stirring drive motor 370 and move integrally with the lid case 60.

The upper end of the rotation shaft 350 passes through the bottom wall of the support frame 340, and the agitation drive motor 370 rotates the rotation shaft 350 so as to rotate the rotation shaft 350 about its axis. Is operatively connected to the upper end of the.
In the present embodiment, the stirring drive motor 370 has a horizontal output shaft, and the horizontal output shaft is connected to the upper end portion of the rotating shaft 350 via a bevel gear train.

In the present embodiment, as shown in FIGS. 9, 11 (a), and 11 (b), the stirring member 360 is displaced from the axis of the rotating shaft 350 radially outward. A plurality of stirring rods 362 are supported on the rotation shaft 350 so as to rotate around the axis of the rotation shaft 350 in accordance with the rotation around the axis of the rotation shaft 350 along the vertical direction. .
The plurality of stirring rods 361 are spaced apart from each other in the circumferential direction based on the axis of the rotation shaft 350.

  Thus, by providing the heating device 300 with a stirring function, the superheated steam from the fluid heating pipe 70 (see FIGS. 6 and 7 and the like) and the fluid heating pipe 70 in the melted space 100 in a sealed state. While the aluminum material is melted by the amount of heat of itself, it can be stirred by the stirring member 360, thereby realizing efficient melting of the aluminum material in a low oxygen state.

  The pressing device 400 includes a mesh member 460 and a pressing lifting mechanism 410.

  The mesh member 460 has an outer peripheral wall substantially along the inner surface of the crucible 10, and the outer peripheral wall is provided with a plurality of through holes penetrating vertically.

The mesh member 460 is pressed against the inner surface of the crucible 10 to extract the regenerated aluminum alloy by destroying the oxide film of the molten aluminum material, and the extracted regenerated aluminum alloy is extracted to the mesh through the passage hole. The squeezing process which extrudes to the inside of the member 460 is performed.
The mesh member 460 is made of, for example, SUS.

  The lifting mechanism 410 for pressing is configured to make the crucible 10 and the mesh member 460 positioned in the pressing area relatively contact and separate in the vertical direction.

  That is, the pressing and lifting mechanism 410 includes a pressing operation state in which the mesh member 460 is pressed against the inner surface of the crucible 10 to squeeze the recycled aluminum alloy from the molten aluminum material, and the mesh member 460 and the crucible 10. The vertical relative positions of the mesh member 460 and the crucible 10 are changed so that the standby state in which the mesh members are separated in the vertical direction is selectively revealed.

  In the present embodiment, as shown in FIG. 9, the squeezing lift mechanism 410 directly or indirectly supports the mesh member 460 and is configured to lift and lower the mesh member 460. .

12 (a) and 12 (b) show a standby state and a pressing work state of the pressing device 400, respectively.
As shown in FIGS. 9, 12 (a), and 12 (b), in the present embodiment, the processing station 500 includes a pressing rack 530 that defines a pressing area 503.

  The elevating mechanism 430 for squeezing is connected to the elevating drive unit 420 such as a hydraulic elevating device installed on the squeezing stand 530 and the upper end side thereof is operatively connected to the elevating drive unit 420, and is moved up and down by the elevating drive unit 420. The mesh member 460 is supported by the support rod 430 directly or indirectly.

In the present embodiment, the mesh member 460 is detachably attached to the pressing elevating mechanism 410.
FIG. 12C shows a state in which the mesh member 460 is removed from the squeezing lift mechanism 410.

  In the present embodiment, the squeezing mechanism 410 includes a horizontal connecting rod 435 directly or indirectly connected to the lower end of the support rod 430, and the mesh member 460 includes the horizontal connecting rod. 435 is detachably mounted.

In the present embodiment, the squeezing device 400 is provided with a twist drawing function.
Specifically, as shown in FIGS. 9, 12 (a) and 12 (b), the squeezing device 400 includes a support frame 440 supported by a lower end portion of the support rod 430, and upper and lower parts of the support frame 440. A rotating shaft 450 that is supported so as to be rotatable about an axis in a state along the direction and that supports the mesh member 460 directly or indirectly on the lower end side, and is supported by the support frame 440, and the rotating shaft 450 is A squeezing drive motor 470 is operatively connected to the upper end side of the rotating shaft 450 so as to rotate around.

In the present embodiment, the horizontal connecting rod 435 is supported on the lower end portion of the rotating shaft 450.
In other words, in the present embodiment, the support rod 430 supports the mesh member 460 in a detachable manner via the support frame 440, the rotating shaft 450, and the horizontal connecting rod 435.

  In the present embodiment, the squeezing drive motor 470 has a horizontal output shaft, and the horizontal output shaft is connected to the upper end portion of the rotating shaft 450 via a bevel gear train.

The squeezing device 400 having the above-described configuration operates as follows.
That is, the mesh member 460 is pressed toward the inner surface of the crucible 10 by causing the squeezing lifting mechanism 410 to reveal the pressing work state.
By the pressing operation of the mesh member 460, the oxide film of the molten aluminum material is crushed and the recycled aluminum alloy is extruded.

  When the rotation shaft 450 is rotated around the axis by the squeezing drive motor 470 in this state (that is, the squeezing operation state is revealed by the squeezing lifting mechanism 410), the mesh member 460 is In a state where the molten aluminum material is crushed between the inner surface of the crucible 10 and rotated around the axis, a twisting and drawing operation is performed.

  By the twisting and drawing operation of the mesh member 460, the oxide film of the molten aluminum material can be more effectively destroyed, and the recycled aluminum alloy can be extracted efficiently.

When the squeezing process by the squeezing device is completed, the mesh member 460 is separated from the squeezing / lowering mechanism 410 (the horizontal connecting rod 435 in the present embodiment), and the mesh member 460 is left in the crucible 10. .
At this time, since the mesh member 460 is attached to the molten aluminum in the crucible 10, the mesh member 460 is not detached from the crucible 10 unexpectedly.

  The aluminum regeneration system 200A according to the present embodiment tilts the crucible 10 in a state where the mesh member 460 is left in the crucible 10 after the squeezing process, so that the recycled aluminum material is disposed above the crucible 10. It is configured to be taken out from the opening.

Specifically, the crucible 10 is provided with a substantially horizontal tilt reference axis 215.
As shown in FIGS. 10A and 10B and the like, in the present embodiment, a pair of inclined reference shafts 215 is provided in the crucible case 210 that houses the crucible 10.

The processing station 500 has a take-out area 504 for taking out the recycled aluminum alloy.
In the present embodiment, the take-out area 504 is configured to support the crucible 10 so as to be tiltable about the pair of tilt reference axes 215.

  In the present embodiment, as shown in FIGS. 12A to 12C, a bearing portion 535 that supports the pair of inclined reference shafts 215 so as to be rotatable about the axis is provided on the vertical frame 531 of the compression mount 530. It is provided and the said compression stand 530 acts also as the said extraction area 504. FIG.

FIGS. 13A and 13B are front views of the crucible 10 in a state where the tilt reference shaft 215 is locked to the bearing portion 535.
FIGS. 13A and 13B show a horizontal posture and an inclined posture (extraction posture) of the crucible 10, respectively.

  In the present embodiment, the squeezing process by the squeezing device 400 is performed, and the crucible 10 in a state where the mesh member 460 is left inside is lifted by a lifting device (not shown) such as a forklift, and the pair The tilt reference shaft 215 is locked to the bearing portion 535, and the crucible 10 appears to be tiltable about the tilt reference shaft 215 (FIG. 13A).

  In this state, one end side of the crucible case 210 is lifted by an inclination mechanism 220 such as a crane or a pulley mechanism to incline the crucible 10 around the inclination reference axis 215, and regenerate aluminum alloy from the upper opening of the crucible 10. Is poured out of the machine (FIG. 13 (b)).

  The processing station 500 has a discharge area 505 for discharging the oxide film (residue or dross) remaining in the crucible 10 after the recycled aluminum alloy is taken out.

In the present embodiment, the residue or dross is also discharged by tilting the crucible 10 around the tilt reference axis 215.
That is, the pressing area 503 (the extraction area 504) also functions as the discharge area 505.
The residue or dross is discharged in a state where the mesh member 460 is removed from the crucible 10.

  The mesh member 460 is removed from the crucible 10 while the tilt reference shaft 215 of the crucible 10 (the crucible case 210 in the present embodiment) is engaged with the bearing portion 535. Alternatively, the crucible 10 may be temporarily moved to a work surface (for example, the transfer device) by a lifting / lowering device (not shown) such as a forklift from a state in which the tilt reference shaft 215 is locked to the bearing portion 535. 230 on the work surface or the work surface.

  In the latter case, after the mesh member 460 is taken out, the crucible 10 is lifted again by an elevating device such as a forklift so that the inclined reference shaft 215 is locked to the bearing portion 535.

In the present embodiment, the input area 501 can be used as the discharge area 505.
That is, after the recycled aluminum alloy is taken out in the take-out area 504, the transfer device 230 can be moved to the feed area 501 and the residue or dross can be discharged in the feed area 501.
In this case, the extraction from the mesh member 460 from the crucible 10 is preferably performed in the extraction area 504 that also functions as the compression area 503, and the mesh member 460 is moved up and down in the compression area 503. The mechanism 410 can be attached.

  In the aluminum regeneration system 200A, the transport device 230 is configured to support and transport the crucible 10 in a fixed posture with the upper opening of the crucible 10 facing upward, but instead of the transport device 230, It is also possible to provide a transfer device 250 configured to support the crucible 10 so as to be tiltable about the tilt reference axis 215.

In FIG. 14, the front view of the said conveying apparatus 250 is shown.
As shown in FIG. 14, the transport device 250 includes the mounting table 232 and the moving means (wheel 235).

  The crucible 10 is accommodated in a crucible case 260, and a pair of inclined reference shafts 215 are provided in the crucible case 260.

  The transport device 250 includes a vertical frame 255 erected on the mounting table 232 and a bearing portion 256 provided on the vertical frame 255 so as to rotatably support the tilt reference shaft 215 about an axis. doing.

  The transport device 250 is further provided with a tilt driving motor 265 that tilts the crucible 10 (the crucible case 260) about the tilt reference axis 215, and the crucible is driven by driving the tilt driving motor 265. 10 is tilted around the tilt reference axis 215 so that the recycled aluminum alloy and dross in the crucible 10 can flow out from the upper opening of the crucible 10 (two-dot chain line in FIG. 14).

  In the aluminum regeneration system 200A, the processing areas of the input area 501, the melting area 502 and the pressing area 503 (the extraction area 504 and the discharge area 505) are arranged in series, but instead, the processing areas are arranged in the circumferential direction. It is also possible to arrange them along.

FIG. 15 shows a plan view of another example 200B of the aluminum regeneration system in which the processing areas are arranged along the circumferential direction.
FIGS. 16 and 17 are partial sectional views of the aluminum regeneration system 200B taken along lines XVI-XVI and XVII-XVII in FIG. 15, respectively.
In the figure, the same members as those in the aluminum regeneration system 200A are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  The aluminum regeneration system 200B includes a processing station 550 and a transport device 270 instead of the processing station 500 and the transport device 230, as compared with the aluminum regeneration system 200A.

  As shown in FIG. 15, in the processing station 550, a charging area 501, a melting area 502, and a pressing area 503 are sequentially arranged around the processing center C toward one side in the circumferential direction.

In addition, in the said aluminum reproduction | regeneration system 200B, as shown in FIG. 15, the pressing area 503 acts also as the extraction area 504.
In addition, the processing station 550 further includes a discharge area 505 for discharging the residue or dross on the way to the circumferential direction one side around the processing center C from the pressing area 503 (the extraction area 504) to the input area 501. Yes.

  As shown in FIGS. 16 and 17, the processing station 550 includes an input frame 560, a melting frame 565, and a compression frame 570 that define an input area 501, a melting area 502, and a pressing area 503 (an extraction area 504). doing.

  The aluminum regeneration system 200B has a charging mechanism 562 mounted on the charging frame 560, and an aluminum material is charged into the crucible 10 through the charging mechanism 562.

The transport device 550 includes a turntable 580 that moves the crucible 10 around the processing center C.
In the aluminum regeneration system 200B, the transfer device 550 can rotate the turntable 580 around the processing center C and tilt the crucible 10 around the tilt reference axis 215 on the turntable 580. It is configured.

  Specifically, the transfer device 550 is provided in the crucible 10, a turntable drive motor 590 that rotates the turntable 580 around the processing center C, a vertical frame 582 erected on the turntable 580. A pair of bearing portions 584 provided on the vertical frame 582 so as to rotatably support the pair of tilt reference shafts 215 so as to be rotatable about the axis, and tilt drive for tilting the crucible 10 about the pair of tilt reference shafts 215 And a motor 585.

  As shown in FIG. 15, in the aluminum regeneration system 200B, the processing areas in the processing station 550 are arranged at equal intervals around the processing center C.

In the aluminum regeneration system 200B, the pressing area 503 and the extraction area 504 are the same area.
Accordingly, the processing stations are arranged at 90 degree intervals so that the four processing areas of the input area 501, the melting area 502, the pressing area 503 (the extraction area 504) and the discharge area are equally spaced around the processing center C. Has been.

In the present embodiment, the turntable 580 is configured to support the four crucibles 10 at intervals of 90 degrees around the processing center C.
That is, in the transfer device 550, four vertical frames 582 are arranged at intervals of 90 degrees around the processing center, and the bearing portions 584 are provided in the four vertical frames 582, respectively. Thus, according to such a configuration, the processing in the four processing areas can be performed in parallel, and the efficiency of the aluminum regeneration processing can be improved.

  As described above, in the aluminum regeneration system 200B, the extraction area 504 for taking out the recycled aluminum alloy to the outside is at the same position as the pressing area 503.

  That is, in the pressing area 503, the recycled aluminum alloy is pressed from the molten aluminum material by the pressing device 400, and the crucible 10 is moved around the processing center C while the mesh member 460 is left in the crucible 10. Instead, the recycled aluminum alloy is taken out by tilting the crucible 10 around the tilt reference axis 215 by the tilt drive motor 585.

According to such a configuration, the recovery rate of the recycled aluminum alloy can be improved.
That is, the recycled aluminum alloy can be taken out in the discharge area 505 for discharging the residue or dross. In such a processing procedure, the pressing process is performed in the pressing area 503 and the mesh member 460 is placed in the crucible 10. In this state, the crucible 10 is moved from the pressing area 503 to the discharge area 505 around the processing center C, and then the recycled aluminum alloy is taken out by inclining the crucible 10 by the inclination driving motor 585. Become.

  In this case, it takes time from the melting treatment to the removal treatment of the recycled aluminum alloy, and the aluminum temperature is lowered during the removal treatment of the recycled aluminum alloy, and as a result, the recovery rate of the aluminum alloy may be deteriorated.

  On the other hand, as described above, according to the process procedure of taking out the recycled aluminum alloy at the same position as the pressing area 503, the time from the melting process to the taking out process of the recycled aluminum alloy can be shortened. The recovery rate of the alloy can be improved.

10 crucible 10a upper opening 11 crucible body 15 crucible side flange 50 superheated steam generator 60 lid case 60 (1) first mounting hole 60 (2) second mounting hole 61 lid case body 65 lid case side flange 70 fluid heating tube 70 (1) First end portion 70 (2) Second end portion 70 (M) Intermediate region 71 First feeding point 72 Second feeding point 75 Water inlet 76 Steam outlet 81 First piping member 82 Second piping member 85 Intermediate piping member 85 (1) First straight portion 85 (2) Second straight portion 85 (M) Central straight portion 85 (U) Direction changing portion 100 Melting space 200A, 200B Aluminum regeneration system 215 Inclined reference shaft 230 Conveying device 232 Mounting table 255 Vertical frame 256 Bearing portion 265 Tilt drive motor 300 Heating device 310 Heating lifting mechanism 340 Stirring drive motor 350 Rotating shaft 360 Stirring unit 362 Stirring bar 400 Squeezing device 410 Elevating mechanism 460 Mesh member 500, 550 Processing station 501 Input area 502 Melting area 503 Squeezing area 504 Extraction area 505 Discharge area 535 Bearing part 580 Turntable 582 Vertical frame 584 Bearing part 585 Tilt drive motor 590 Turntable drive motor

Claims (15)

It has a crucible with an upper opening and a superheated steam generator,
The superheated steam generator is detachably attached to the crucible so as to airtightly cover the opening, and a lid case that forms a sealed melting space together with the crucible, is supported by the lid case, and responds to voltage application. A fluid heating pipe that generates superheated steam from the steam supplied from the water supply unit or mist-like water by being heated,
The fluid heating pipe is supplied from first and second feeding points for voltage application provided at a first end on one side in the longitudinal direction and a second end on the other side, and the water supply unit. A water inlet provided at one of the first and second ends for receiving steam or mist water into the tube, and the first and second ends for discharging superheated steam generated in the tube. One or a plurality of vapor outlets provided in an intermediate region between the first and second ends, the first and second end portions extending outward from the lid case, and the lid case to the crucible It is supported by the lid case so that the vapor discharge port is located in the melting space when mounted,
The lid case is detachably attached to the crucible while supporting the fluid heating tube, and the superheated steam generator including the lid case and the fluid heating tube is detachable from the crucible. An aluminum melting apparatus characterized by the above. The fluid heating pipe is inserted into first and second mounting holes formed in the lid case, and first and second piping members whose outer ends form the first and second ends, respectively, An inner piping member that fluidly connects the inner ends of the first and second piping members and forms the intermediate region;
The intermediate piping member is detachably connected to the inner end portion of the first piping member, and is detachably connected to the inner end portion of the second piping member. A second straight line portion extending in parallel, a central straight line portion extending in parallel between the first and second straight line portions, and a corresponding U-shaped direction change in a plan view connecting adjacent linear portions. The aluminum melting apparatus according to claim 1, wherein the aluminum melting apparatus has an integral part. The crucible has a crucible body whose upper end portion defines the opening, and a crucible side flange extending radially outward from the upper end portion of the crucible body in plan view,
The lid case includes a lid case body in which the first and second mounting holes are formed and a lower end side is opened, and a lid case side flange that extends radially outward from a lower end portion of the lid case body in a plan view. Have
The aluminum melting apparatus according to claim 2, wherein the lid case and the crucible are connected in an airtight and detachable manner in a state where the lid case side flange and the crucible side flange are in contact with each other. It has a crucible with an upper opening and a superheated steam generator,
The superheated steam generator is detachably attached to the crucible so as to airtightly cover the opening, and a lid case that forms a sealed melting space together with the crucible, is supported by the lid case, and responds to voltage application. A fluid heating pipe that generates superheated steam from the steam supplied from the water supply unit or mist-like water by being heated,
The fluid heating pipe is supplied from first and second feeding points for voltage application provided at a first end on one side in the longitudinal direction and a second end on the other side, and the water supply unit. A water inlet provided at one of the first and second ends for receiving steam or mist water into the tube, and the first and second ends for discharging superheated steam generated in the tube. One or a plurality of vapor outlets provided in an intermediate region between the first and second ends, the first and second end portions extending outward from the lid case, and the lid case to the crucible It is supported by the lid case so that the vapor discharge port is located in the melting space when mounted,
The crucible has a crucible body whose upper end portion defines the opening, and a crucible side flange extending radially outward from the upper end portion of the crucible body in plan view,
The lid case has a lid case body whose lower end side is an opening, and a lid case side flange that extends radially outward from a lower end portion of the lid case body in a plan view,
The lid case side flange and the crucible side flange are in contact with each other and the lid case is airtightly and detachably connected to the crucible, and the superheated steam generation unit including the lid case and the fluid heating pipe is the crucible An aluminum melting apparatus characterized in that it is a unit that can be attached to and detached from the aluminum.   The superheated steam generator is supported by the lid case so as to be rotatable about its axis so that the lower end side is located in the melting space and the upper end side extends upward in a state where the lid case is mounted on the crucible. And a stirring member supported on the lower end side of the rotating shaft so as to be positioned in the melting space in a state where the lid case is attached to the crucible. The aluminum melting apparatus according to any one of claims 1 to 4. The pivot axis is along the vertical direction at the radial center of the lid case,
The stirring member is adapted to rotate in the vertical direction at a position displaced radially outward from the axis of the rotating shaft, and to rotate about the axis of the rotating shaft in response to the rotation of the rotating shaft about the axis. A plurality of stirring rods supported by the rotating shaft,
The aluminum melting apparatus according to claim 5, wherein the plurality of stirring rods are spaced apart from each other in a circumferential direction based on an axis of the rotation shaft. From the crucible having an opening on the upper side, a conveying device that supports and moves the crucible, a heating device that generates heat for melting the aluminum material in the crucible, and the aluminum material melted in the crucible A squeezing device for squeezing the reclaimed aluminum alloy, a melting station where the melting process is performed by the heating device, and a processing station having a squeezing area where the squeezing process is performed by the pressing device,
The heating device is detachably attached to the crucible so as to cover the upper opening in an airtight manner, and a lid case capable of forming a hermetically sealed melting space together with the crucible, supported by the lid case, and adapted to voltage application. The fluid heating pipe that generates superheated steam from the steam supplied from the water supply section or mist-like water by being heated, and the crucible located in the melting area and the lid case relative to each other in the vertical direction. An elevating mechanism for heating that contacts and separates,
The fluid heating pipe is supplied from first and second feeding points for voltage application provided at a first end on one side in the longitudinal direction and a second end on the other side, and the water supply unit. A water inlet provided at one of the first and second ends for receiving steam or mist water into the tube, and the first and second ends for discharging superheated steam generated in the tube. One or a plurality of vapor outlets provided in an intermediate region between the first and second ends, the first and second end portions extending outward from the lid case, and the lid case to the crucible It is supported by the lid case so that the vapor discharge port is located in the melting space when mounted,
The heating elevating mechanism can present a melting operation state in which the lid case is attached to the crucible to form the melting space and a standby state in which the lid case and the crucible are relatively separated in the vertical direction. And
The pressing device has an outer peripheral wall substantially along the inner surface of the crucible, and the outer peripheral wall is provided with a mesh member provided with a plurality of passage holes penetrating vertically, and the pressing unit is installed in the pressing area. An elevating mechanism for squeezing the crucible and the mesh member relatively contacting and separating in the vertical direction;
The squeezing lifting mechanism is configured to squeeze the recycled aluminum alloy from the molten aluminum material by pressing the mesh member toward the inner surface of the crucible, and relatively move the mesh member and the crucible vertically. An aluminum recycling system characterized by being able to reveal a standby state for separation. The heating device is a circuit that is supported by the lid case so as to be rotatable about its axis so that the lower end side is located in the melting space and the upper end side extends upward in a state where the lid case is mounted on the crucible. The moving shaft, the stirring member supported on the lower end side of the rotating shaft so as to be located in the melting space in a state where the lid case is mounted on the crucible, and the upper end side of the rotating shaft are operated. And a stirring drive motor that rotates around the axis,
The aluminum regeneration system according to claim 7, wherein the heating elevating mechanism is configured to integrally elevate and lower the lid case and the stirring drive motor.   The aluminum regeneration system according to claim 7 or 8, wherein the mesh member is detachably attached to the squeezing lifting mechanism. The processing station further has an input area,
The charging area, the melting area and the pressing area are arranged in series in this order,
The aluminum recycling system according to any one of claims 7 to 9, wherein the transfer device moves in the order of the charging area, the melting area, and the pressing area while being guided by a guide rail. The crucible has a pair of substantially horizontal inclined reference axes,
11. The aluminum regeneration system according to claim 7, wherein the processing station includes a pair of bearing portions that lock the pair of inclined reference shafts so as to be rotatable about an axis. The crucible has a pair of substantially horizontal inclined reference axes,
The transfer device is capable of rotating about a shaft about a mounting table on which the crucible is mounted, a moving means for moving the mounting table, a vertical frame standing on the mounting table, and the pair of tilt reference axes. 11. A pair of bearing portions provided on the vertical frame so as to be supported on each other, and a tilt drive motor for tilting the crucible around the pair of tilt reference axes. An aluminum regeneration system according to any one of the above. The processing station further has an input area,
The charging area, the melting area, and the pressing area are sequentially arranged in the circumferential direction one side around the processing center,
The aluminum recycling system according to any one of claims 7 to 10, wherein the transfer device has a turntable capable of moving the crucible around the processing center. The processing station further has a discharge area for discharging the residue remaining in the crucible on the way to the circumferential direction one side around the processing center from the pressing area to the input area,
The charging area, the melting area, the pressing area and the discharging area are arranged at equal intervals around the processing center,
The aluminum regeneration system according to claim 13, wherein the turntable is configured to support four crucibles at intervals of 90 degrees around the processing center. The crucible has a pair of substantially horizontal inclined reference axes,
The transfer device supports a turntable drive motor that rotationally drives the turntable around the processing center, a vertical frame that is erected on the turntable, and the pair of tilt reference shafts so as to be rotatable about an axis. The pair of bearing portions provided on the vertical frame as described above, and a tilt drive motor that tilts the crucible around the pair of tilt reference axes. Aluminum regeneration system.

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