KR20200121906A - Molten Metal Scrap Immersion Device - Google Patents

Abstract

The metal piece immersion device includes an open top chamber including a wall of a heat-resistant material, an injection port positioned at a base or side wall of the chamber, an outlet port positioned at the base of the chamber, and a lamp adjacent to the side wall of the chamber. The device further comprises removable wings and/or diverters.

Description

Molten Metal Scrap Immersion Device

This application claims priority to U.S. Patent Application No. 15/921,047, filed March 14, 2018, the entire disclosure of which is expressly incorporated herein by reference.

The present invention relates to an improved method and apparatus for melting a piece of metal such as aluminum. However, this specification is not limited to those used for aluminum, but relates to all molten metals.

Aluminum pieces fall into two general categories. The first category for pieces consists of large parts, such as internal combustion engines, which are usually self-immersed. The second category for flakes is for light flakes such as chopped food and beverage containers or machine chips and filings. Lightweight pieces are difficult to submerge and therefore difficult to melt.

The conventional melting system for light flakes has a problem in that floating flakes occur within the melting section and seriously hinder the efficiency of the process. These conventional systems induce a high level of thin film formation of the scheme, free aluminum metal blocked in the scheme, and melt losses resulting from floating aluminum fragments converted to oxides. In addition to the melt loss, the high level of the scheme requires a more intense processing downstream to separate these materials to provide a refined metal.

U.S. Patent No. 4,128,415 discloses a system that is generally circular in cross section and includes a housing having a top and a bottom and for melting a piece of metal in a melting media. The piece of metal is guided to a molten body that melts the media contained in the top of the housing. The supply of molten media is added to the top of the housing through a volute installed at the bottom. The molten melting media is installed on a drive shaft extending through the top and supplied or added by the operation of an impeller installed at the bottom. A vane is installed on the drive shaft to control the flow motion of the body of the molten media and create a votex in this body for the purpose of mixing the molten media and the metal piece, thereby forming a piece of metal at the top of the housing. Control.

U.S. Patent No. 3,997,336 discloses a system for melting a piece of metal in a molten melting media comprising a housing having a melting medium and a top that is taken together to initiate melting. The housing also has a lower part fitted with a volute. An impeller with a central hub, an outer circumferential band surrounding the hub, and oblique blades protruding radially from the hub to the band are positioned at the bottom of the housing to cooperate well with the swirling shape, so that the metal pieces and melting media move away from the housing and Moves.

U.S. Patent No. 4,518,424 discloses a method of melting a piece of metal in a molten melting medium. The method includes providing a body of molten melting media in a housing having a top and a bottom, the bottom having a generally cylindrical wall cross section. The supply of metal pieces is added to the housing and the supply of molten melting media is introduced into the top of the housing. Melting of the metal piece is initiated by injecting it, and it is initiated by directing the molten melting media in a downward direction within the housing by the action (operation) of the impeller located at the bottom, and the impeller having a flat ring member is placed in the center. It has an opening and has a blade extending from the ring member to the circular disk member.

US Patent Registration No. 4,486,228 discloses a method of melting a piece of metal in a molten melting media. The method includes providing a body of molten melting media in a housing having a top and a bottom, the bottom having a generally cylindrical wall cross section. The supply of metal pieces is added to the housing, and the supply of molten media is introduced into the top of the housing. Melting of the metal piece is initiated by injecting it, and it is initiated by injecting the molten melting media in a downward direction from the housing by the action of the impeller positioned below, the impeller has a flat ring member having an opening in the center, and from the ring member It has a blade extending down to the circular disk member. The metal pieces and the melting media are axially fed into the openings in the ring member, and are propelled radially by the use of blades. The impeller is positioned within the cylindrical wall cross section so that at least one ring member cooperates with them to utilize the flake and melting media from the top through the impeller, while substantially avoiding recirculation of the molten melting media in the housing relative to the top. .

U.S. Patent No. 4,437,650 discloses an apparatus for melting a relatively large floating unit for a piece of metal in a molten melting medium or medium, the unit having an oxide film and a composition in the form of solid, liquid and gas. The unit is then filled with a melting medium and the freshly molten metal layer is provided as a melting medium. The apparatus includes a bay for heating the molten media and means for pumping the media from the heating bay to a circular bay for receiving large units of metal pieces.

U.S. Patent No. 4,286,985, the content of which is incorporated by reference, discloses a vortex melting system for dispensing and melting a piece of metal that tends to float on the surface of a molten melting media. The method includes providing a feeder that directs and melts the media up to the top of a receptacle having an outlet within its bottom. The flow of the melting media entering the receptacle creates a swirl of media in the receptacle as if the media flows through the lower opening. The amount of flow of the melting media to the receptacle and the size of the lower opening allows a certain level of media to be maintained within the receptacle.

US Patent Nos. 6,036,745, 6,074,455 and 6,217,823 also describe a piece of metal immersion device. The disclosure content of each of these patents is incorporated herein by reference.

The various details of this specification are summarized below to provide a basic understanding. This summary is not a strong point of view of the specification, is not intended to identify certain elements of the specification, nor is it intended to elaborate on the scope thereof. Rather, the primary purpose of the summary is to present some concepts of the disclosure within a simplified form prior to the detailed description that is presented below.

According to a first embodiment, a metal piece immersion device is provided. The device includes an open top chamber with a wall of heat-resistant material, an inlet located on the base or side wall of the chamber, and an outlet located on the base or side wall of the chamber, and the side wall of the chamber. It contains a ramp adjacent to. The sidewall also includes removable vanes including hook elements suitable for engaging the top edge of the chamber.

According to another embodiment, a system for submerging molten metal pieces is provided. The system includes a vortex piece submerged wall. Includes a diverter transversely covering the vortex piece immersion wall outlet. The diverter may be a cylindrical body defining a hollow interior of a plurality of paths formed within the body and communicating with the hollow interior. The hollow interior allows fluid communication with the outlet of the vortex fragment immersion wall.

According to another embodiment, a system for submerging molten metal pieces is provided. This system includes a vortex sculptural submerged wall. This vortex piece immersion wall contains a diverter transversely covering the outlet of the vortex piece immersion wall. The diverter is suspended by the suspension assembly. The suspension assembly piece includes an arm having a first end for attaching to a location outside the submerged wall, and a second end for receiving the first end of the post. The diverter is attached to the second end of the post.

1 is a schematic diagram of a conventional molten metal regeneration furnace.
2 is a cross-sectional view of a filling well of the furnace of FIG. 1 and a conventional pump well.
3 is a plan view of a partial cross-sectional view of a first embodiment of an improved filling well.
Figure 4 is a cross-sectional view of the filling well of Figure 3;
5 is a cross-sectional view of a modified embodiment of an improved filling well.
6 is a cross-sectional view of another modified embodiment of an improved filling well.
7 is a cross-sectional view of a fourth modified embodiment of an improved filling well.
8 is a cross-sectional view of a fifth embodiment of an improved filling well.
9 is a cross-sectional view of a sixth embodiment of an improved filling well.
10 is a plan view of the filling well of FIG. 9;
11 is a cross-sectional view of another modified embodiment in which the shape of the filling wall is modified.
12 is a perspective view of a wing including a filling well structure.
13 is a diagram of an embodiment of a modified filling well including a diverter element shown as a phantom inserted in the outlet of the filling well.
14 is a perspective view of the diverter element of FIG. 13;
15 is a perspective view of a diverter associated with a filling well.
16 is a perspective view of a diverter with posts.
17 is a side cross-sectional view of FIG. 16.

References will be made in detail with respect to various embodiments of the present invention, and examples thereof are well shown in the accompanying drawings. On the other hand, although the present invention has been described in connection with the described embodiments, the present invention should not be limited only to these embodiments. Conversely, it is included within the concept and scope of the present invention as defined in the appended claims, and can cover all modifications, alterations, and equivalents.

The present invention relates to a piece immersion system of the type typically applied to a metal regeneration process such as aluminum regeneration. In metal recycling systems, it is necessary to melt the pieces for processing and processing. Most of the pieces of aluminum are thin walls (thickness) as a result of mechanical shaping actions that take the form of shaving, boring, and cold rolling. Melting thin-walled pieces are particularly difficult because rapid immersion in molten metal is severely hampered by the fact that the thin-walled pieces on the molten metal are floating. As a problem, extended exposure to disturbing atmospheres in conventional melting furnaces results in very high oxidation losses.

In conventional melting operations used to convert lightweight pieces into ingots, the melting furnace is provided with a closed hearth and a connected side well. Usually side wells are classified into pump wells and melting bays. A pump or other molten metal flow guiding device is located outside the melting bay (ie within the pump well) and allows molten metal to flow from the burn to the melting bay. Typically, melting bays are classified into packed wells and dross wells. The piece of metal scrap is fed into the melting bay and in particular into the filling well component thereby. Floating impurities are skimmed from the surface of the molten metal in the impurity well.

Referring to Figure 1, an aluminum regeneration furnace 10 is shown. The regeneration furnace 10 comprises a main burning component which is heated, for example by a gas or oil burner or by known means. The main regeneration area consisting of a pump well, a filling well and an impurity well is in fluid communication with the image 12 (typically submerged arcway). Although not shown, the well in image 12 opens the pump well 14, the pump well opens the filling well 16, and the filling well 16 opens the impurity well 18 and Reference numeral 18 opens the image 12 so that a circular pattern is possible in the direction of the arrow. The pump well may comprise a molten metal pump of a type well known to those skilled in the art. Preferably, the wells and pumps may be replaced by electromagnetic pumps. The molten metal pump circulates the molten metal from the burn 12 to the filling well, and a piece of regenerated metal piece is placed on the melt surface. The filling well is also in the position where additional metals or fluxes are added to achieve the desired alloy. The molten metal from the filling well 16 flows into the impurity well, and impurities in the form of dross are skimmed from the surface before the melt flows back into the image 12. This particular invention relates to the improved design of the filling well 16.

The filling well includes a wall made of a heat resistant material and may include an open top chamber (top open chamber). The chamber contains an inlet in fluid communication with the pump well and located on the side wall (alternatively within the base), and an outlet in fluid communication with the impurity well and located on the opposite side wall (however, with an inner conduit forming the side outlet). A molten metal outlet is feasible through the chamber bottom wall). In general, the interior shape of the chamber may be described as a bottom or bottom side wall inlet, and a bottom outlet having a lamp adjacent to the side wall.

According to the first embodiment, the lamp may include a ledge extending from the filling well side wall toward the center of the chamber. The piece of metal immersion device may be configured by placing the bottom edge of the lamp on the base of the chamber near the inlet. The protrusion is at least an upwardly abutting surface. The upwardly abutting surface includes a first end (bottom edge) that engages the base, and a second end raised above the base. The upward facing surface has a width between 5% and 33% of the chamber diameter. So, if we consider two facing upward facing surfaces, the overlap area could be 66%. The protrusion further comprises at least a substantially horizontal wall extending from the edge of the upward abutting surface facing the side wall to the chamber base and helping to define the outlet. The horizontal wall can also be tilted inward or outward. Alternatively, the upwardly abutting surface could engage the inner wall forming the outlet for the chamber at the edge opposite the side wall. The top edge of the wall may be approximately the same height as the terminal end of the lamp.

According to another embodiment, the ramp also includes a sloped surface that rotates 360 degrees around the chamber and extends the slope from the base to a sidewall effectively forming a cone-shaped chamber base.

The lamp may be 180 degrees, 270 degrees, 320 degrees spiral, or may be a full chamber circumference. The upwardly abutting ramp surface may comprise a portion having an inclination of 5 degrees or 10 degrees to 15 degrees. However, the range of lamps around the circumference of the chamber can vary greatly, and the inclination can be varied throughout the dimensions of the lamp.

2, the pump well 14 and filling well of FIG. 1 are shown. The pump 20 is located in the pump well and guides molten aluminum from the image to depress it into the filling well 16. More specifically, the rotation of the impeller 22 guides the molten aluminum from the bath 24 to the pump, discharges it through the discharge port 26, the ascending passage 28, and fills it through the discharge port 26. Export to well (16). Molten aluminum flows into the ascending passage 32 in the filling well 16, overflows into the cavity 36 over the inner edge, and exits through the outlet. The leading edge 44 of the ramp 32 may be located near the injection port 30.

While ramp 32 is inclined, there is a gain, but this need not be achieved by a constant slope. Rather, the ramp 32 may cover the first 180 degree portion 40 and be inclined, while the last approximately 120 degree portion 42 remains horizontal. Thus, the invention includes all versions of the inclined ramp. Similarly, the invention includes a lamp covering from 45 degrees to 360 degrees around the periphery of the filling well 16 at a minimum. However, ramps extended between 180 and 270 degrees are typical.

Since the present invention is applicable to a component (element) for remodeling representing a filling well, the cavity 36 allows molten metal to flow into the impurity well 18 of FIG. 1 and provides a clearance for the outlet 38. It can be seen from FIG. 2 that the design includes a base section 46 of recycled material that raises the. As will be appreciated by those skilled in the art, the regenerated metal chips are placed on the surface of the melt 48 in the filling well 16.

Referring briefly to the piece immersion device of US Patent Registration No. 6,217,823 as shown in Figure 2, a commercial success system is described. Moreover, the system shown here was devised to facilitate turn-over of molten aluminum up to 20,000 lbs./hr. Obviously, the furnace's ability to calculate molten aluminum throughout the image to achieve the desired alloy composition and introduction of the flakes is directly related to the furnace's economic performance.

In order to increase the turn-over of the furnace, the molten metal pump component (shown in FIG. 2) can be run at high RPM. Similarly, large molten metal pumps can be applied. However, it has been found that the filling well 16 (Fig. 2) is not of sufficient benefit to the molten metal flow the eddy formed therein. Moreover, a simple increase in the flow of molten metal output by the pump into the filling well cannot improve the immersion of the pieces because it can change the optimum shape of the vortex formed therein. Also, due to the space constraints in conventional furnace structures, the ability to increase the fill well size to install large immersion vessels to use a higher overall pump is not always an available option.

It is already known that the filling well 16 has a "dead zone" relatively adjacent to its outer wall. The term dead zone, as used herein, rotates within a chamber in which the molten metal confined portion only enters the vortex and cavity 38. Dead zones are problematic because they reduce effective immersion for added pieces, provide large amounts of molten metal that cannot be circulated through the burn, reduce energy efficiency, and increase the BTU demand for the system.

Referring to the first embodiment of the present invention, a reference is made with respect to FIGS. 3 and 4. Referring to this embodiment, the piece melting apparatus 100 is made of a refractory material 102 configured in a suitable size to provide a relatively close tolerance with the size of an existing filling well (eg, filling well in FIG. 1). It consists of blocks. Preferably block 102 is made of a preserved material such as alumina silica refractory or castable refractory well known to those skilled in the art. In a preferred form of the present invention, the surface of the cast body should be treated with boron nitrification prior to heat treatment. The block 102 has an inner wall 122 forming a cavity 123 installed in the center leading to the discharge port 124 and the discharge port duct 125, and the base 120 including the lamp 121 and approximately cylindrical And a chamber 116 with phosphorous sidewalls 118. The ramp 121 starts at the leading edge l27 adjacent the inlet 126 to the chamber 116. In this example, the inlet 126 includes an inclined opening 128.

A flow impeding baffle 302 in the shape of a vane or wing is included in the wall of the chamber 116. More specifically, the baffles 302 are distributed around the chamber walls. The baffles may be continuous, may include multiple baffles evenly or unevenly spaced around the periphery of the chamber, and may be of one or various heights within the chamber. Generally speaking, the baffle has a lower surface that slopes downward, so that molten metal flowing from the center of the chamber 116 is guided downward. Alternatively, where the flow of molten metal is a chamber predominantly directed upwards relative to the wall 118 of the chamber 116, a baffle that slopes downward from its position on the wall toward the central edge of the chamber 116 is preferred. Similarly, the baffle is preferably inclined downward within its longitudinal limit in the direction of the molten metal rotating within chamber 116. A preferred feature of the baffle in this respect should be to drive the molten metal downwards in the chamber. The baffle of US Patent Registration No. 6.036,745 provides an example.

Referring again to Fig. 5, it is beneficial to provide an inner slope 502 to the lamp 121 to help destroy the dead zone surrounding the walls of the mixing chamber via the inner folds of metal as it travels to the lamp. Became known. The inward slant as used herein relates to a ramp having a relatively lower edge closer to the center of the chamber and an upper edge at the chamber sidewall. The external slope is related to the ramp with the opposite direction. The interior and exterior may be generally considered throughout the specification to relate to the relative position between the chamber center and the chamber sidewall.

6, it is similar that providing an external slope 602 to the lamp 121 can help destroy the dead zone surrounding the walls of the mixing chamber through the external folds of metal when using the lamp. Became known. More specifically, the horizontal surface 126 in the device of FIG. 2 is inclined inwardly or outwardly in the designs of FIGS. 5 and 6, respectively.

The slope of the ramp does not necessarily have to be continuous. Also it can be inclined in some areas and horizontal in other areas. Moreover, the angle of inclination may vary.

Referring to FIG. 7, providing an inner slope 702 (converging) adjacent to and having a space with the lamp 121 on the side wall of the chamber 116 is a light turbulence conducive to the dead zone adjacent to the outer wall of the chamber 116. (turbulence) can be provided.

Referring to FIG. 8, providing an external slope 802 (deverging) adjacent to the lamp 121 on the side wall of the chamber 116 may provide conducive turbulence within the dead zone adjacent to the outer wall of the chamber 116. . With reference also to FIGS. 7 and 8, it may be beneficial to provide a change in diameter adjacent to the lamp 121 by causing the sidewall of the chamber 116. The change in diameter may be continuous or discontinuous throughout the entire circumference of the chamber.

Although the interior and exterior slopes of the sidewalls are depicted as extending over a limited range above the ramp, the slope may continue as high as necessary to achieve light disturbance in the dead zone. Similarly, the slope of the wall does not require that all of the walls be continuous and need not have its shape and/or slope.

3 to 8, it should be noted that a combination of inclined lamps, inclined chamber walls and baffles may be used.

Turning to FIGS. 9 and 10, it is strongly contemplated that it is beneficial to have a relatively small port 902 through block 102 through direct passage into the impurity well 18. The pot 902 may be of some height as if slightly higher than the top edge of the ramp 121 in the piece melting apparatus. Moreover, the port 902 can facilitate the transfer of molten metal from the dead zone adjacent the wall of the filling well 16 and create a flow therein. In addition, the port 902 can improve circulation between the chamber and the impurity well and, in turn, improve the burner for burn bath heat transfer, allowing the molten metal returning to the filling well to be at an elevated temperature. Allow. This reduces the residence time in the filling well, while maintaining a suitable vortex adjacent to the center of the filling well.

The features of Figures 3-8, which are related to reduce external well dead zones, can be combined with the discharge ports of Figures 9 and 10 in a manner of reasonable effort of those skilled in the art.

Referring next to FIG. 11, features of the present specification including adjacent shaped side wells and path diverters spaced apart from the lamp may be used in connection with an optionally shaped lamp. In particular, the 360-degree lamp 1002, which has a relatively constant slope from the chamber base to the side well and effectively forms a cone shape, communicates with the baffle 1302 or the side well 1702 or impurity well and/or the pump well. A passageway 1902 may be similarly included.

Referring to FIG. 12, the removable blade 1501 is supported by the tower surface 1503 of the piece submerged well 100. The wings have a long and thin shape like a rectangle. The portion of the blade designed for immersion into the molten metal in the filling well may be formed of a refractory material such as graphite or ceramic. The hook end can be formed of a metal such as steel. The hook end can be shaped to engage the outer surface of the filling well. In some embodiments or may be separated from the filling well, making the wing 1501 removable. This allows the filling well to be operated selectively with or without wings. It should be further noted that multiple blades can be applied over one or several walls of the filling well.

13 and 14 show diverters. Particularly, the piece immersion device 100 includes a block 2002 of refractory material, which block 2002 may be configured in a size tailored to provide a relatively close error matching the size of an existing filling well. have. The blocks may be composed of cured materials such as other castable refractories or alumina-silica refractories well known to those skilled in the art. The surface of the cast body may be treated with boron nitride prior to heat treatment.

Block 2002 generally defines a chamber with cylindrical sidewalls 2018. The base is provided in the chamber 2016 containing the lamp 2021. The lamp 2021 surrounds the cavity 2013 located at the center of the tip of the discharge port 2014. The diverter element 2030 covers the outlet 2014.

The diverter includes a neck region 2033 formed in a complementary manner to space the edge surface of the outlet 2014. The diverter may include a number of passages 2035 within the sidewall 2014. A passageway may additionally or alternatively also be provided within the tower surface 2039. The passageway includes sloped inlet regions 2041A and 2041B that guide molten metal into passageway 2035.

The diverter element 2030 may be made of a refractory material such as graphite or ceramic. The diverter further contains a high-density material (eg lead) therein to increase its mass and prevents the current in the molten material flowing in the chamber from physically moving the diverter.

Alternatively, diverter 2030 may be held in position via arm 3002. 15 to 17, the arm 3002 may include a first end 3004 suitable for attaching to the post 3006. The post 3006 is fixed to one end of the arm 3002 and couples the diverter 2030 at the opposite end.

The arm 3002 is attached to the outer wall 3008 of the piece immersion chamber through a coupling 3010. The coupling 3010 is housed within the sleeve 3014 to provide horizontal rotation and may include a cylindrical projection 3012 bolted to the arm 3002. The bolted connection coupled with the elongated slot 3016 allows the length of the arm to be adjusted. In this way, the arm can be adjusted for the length of penetration into the diameter of the piece immersion well. This similarly allows the assembly to be used with wells of different sizes.

The post 3006 includes a metal rod 3018 and a fire resistant sheath 3020. The rod 3018 includes a head element 3022 that is received in the diverter 2030 into a pocket 3024. The fire resistant plug 3026 seals the pocket 3024.

The post 3006 includes a spring element 3028 that provides a compressive force on the sheath 3020. Furthermore, the cap 3030 is disposed between the sheath 3020 and the spring element 3028. The bullt 3032 is screwed into the rod 3018 and engages the insert 3034 to compress the spring element 3028 through the cap 3030, and transmits force onto the sheath 3020. The cap 3020 includes a ring member 3040 to allow the post/diverter assembly to easily control removal from the vortex chamber.

The diverter 2030 may be used to slow the immersion of the piece metal piece. Slow immersion provides an increase in residence time on the surface of the molten metal. This in turn enables the vapor build-up of the treatment solution into the atmosphere above the filling well and reduces impurity foam formation.

The diverter functions to cause a piece of molten metal to be placed on the surface of the molten metal bath between the diverter and the inner wall of the chamber. It is known that the efficiency of the vortex generated in the chamber increases in efficiency as the center of the chamber approaches. In this regard, placing a chip of metal chips between the diverter and the wall of the chamber provides a longer residence time on the surface of the molten metal in the filling well, and the dampness and treatment solution will cause the piece material to become molten metal. It is known that it is possible to slow the egress of the chips from the shard immersion chamber which causes them to evaporate from the surface of the sculpting material before submerging into it. In some embodiments, it may be desirable to provide a diverter disk with holes or paths. Moreover, a perforated diverter (disc or drum) can help to adjust the desired molten metal flow rate, while increasing the time remaining for pieces in the filling well by then.

Exemplary embodiments have been described with reference to preferred embodiments. Obviously, modifications and alterations can occur upon reading and understanding the foregoing detailed description. It should be noted that the exemplary embodiments have been practiced to include such modifications and alterations so far as may occur throughout the scope of the appended claims or their identity.

Claims (19)

A vortex piece immersion well, wherein the vortex piece immersion well has a diverter covering the outlet of the vortex piece immersion well, and the diverter includes a cylindrical body defining a hollow interior;
A molten metal immersion system comprising a plurality of passages formed in the cylindrical body and communicating with the hollow interior, wherein the hollow interior is in fluid communication with an outlet of the vortex fragment immersion well. The method according to claim 1,
The diverter further comprises a neck configured to mate with the outlet. The method according to claim 1,
The molten metal immersion system, further comprising a sloped inlet region adjacent to the passage. The method according to claim 1.
The diverter is a molten metal immersion system, characterized in that selectively separable from the well. A vortex piece immersion well, the vortex piece immersion well has a diverter covering the outlet of the vortex piece immersion well, the diverter is suspended by a suspension assembly, and the suspension assembly is the piece immersion well A molten metal, characterized in that it has an arm including a first end attached to an external position of the well and a second end accommodating the first end of the post, and the second end of the post is attached to the diverter Immersion system. The method of claim 5,
The molten metal immersion system, characterized in that the arm is rotatable horizontally. The method of claim 6,
The arm through the socket,
A molten metal immersion system, characterized in that attached to the outer wall of the piece immersion well. The method of claim 5,
Wherein the arm is adjusted in relation to the depth of penetration into the diameter of the piece immersion well. The method of claim 5,
And the post comprises a metal rod and a fire resistant sheath. The method of claim 9,
And the rod comprises a head element received into a pocket on the diverter. The method of claim 9,
And the post comprises a spring element that provides a compressive force over the sheath. The method of claim 11,
A molten metal immersion system, characterized in that a cap is disposed between the spring element and the sheath. The method of claim 12,
The molten metal immersion system, characterized in that the cap comprises a grasping element. The method of claim 12,
A molten metal immersion system, characterized in that the bolt engages the rod to compress the spring element. The method of claim 8,
And the arm includes an elongated slot for adjusting length. An open top chamber containing a wall of a heat resistant material;
An injection hole positioned on the base or sidewall of the chamber;
An outlet located on the base or sidewall of the chamber; And
Including; a lamp adjacent to the side wall of the chamber,
The sidewall further comprises removable vanes comprising hook elements suitable for engaging a top edge of the chamber. The method of claim 16,
The molten metal immersion device, characterized in that the blades are spaced above the lamp. The method of claim 16,
The wing is a molten metal immersion device, characterized in that it comprises a square body. The method of claim 16,
The molten metal immersion device, wherein the blade has a length of at least 50% of the height of the chamber.

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