Abstract: A method and an installation (10) for removing slag allows both slag removal and metal recovery from slag (60?) to be performed quickly and easily. The risk of slag fires is reduced.

Abstract: A roller treatment process and a treatment device suitable for a total-amount steel slag treatment. The treatment process is: firstly, a slag tank (2) with the molten slag is tightly held by a slag tank tilting mechanism and moved to a slag inlet position, the slag tank (2) is tilted to pour the molten slag with good fluidity into a rotary roller device (5) through a feeding chute (51), so that a roller treatment is achieved; secondly, when the steel slag (3) without fluidity in the slag tank (2) cannot flow out, a slag removal machine (4) is used for pushing the high-viscosity slag or the solid slag into the roller device (5); and thirdly, the slag tank (2) is reversed by a large angle tilting to make the slag at the bottom of the tank drop into the roller device (5), so that the total-amount steel slag treatment of the same roller device (5) is achieved.

Abstract: A melting pot includes a pot body and a float salvaging apparatus. The pot body is provided with a melting chamber having an open upper end. The float salvaging apparatus includes a hanging bracket, a bearing plate, a rotating plate and a drive assembly configured to drive pivoting of the rotating plate. The hanging bracket is disposed above the melting chamber. The rotating plate is pivotably disposed on the bearing plate, and the bearing plate and the rotating plate are provided on the hanging bracket between an initial position and a first salvaging position in a manner of moving up and down. The drive assembly is connected to the rotating plate.

Abstract: A method (110) for removing a quantity of slag (24) from hot metal (6) in a ladle (2) during a process of metal purification such as steelmaking using an improved skimmer paddle (100) having a system of internal piping (60) that at one end is attached to a source of gas and at a second end terminates into one or more ports (64). The improved skimmer (100) is moved along a top surface (6a) of the hot metal, though the quantity of slag, and predetermined flows of gas are forced into the piping system and expelled through the port or ports (64) to move the quantity of slag out from the back of ladle to be skimmed into a slag pot (4) to remove undesired impurities from the hot metal.

Abstract: In an implementation, an apparatus for separation and recovery of a molten metal (106) from a slag (108) includes a device (400) attached to a slag ladle (100). The device (400) having a lower edge (404) and free edge (402) is fitted over a part of the slag-ladle (100) holding the molten metal (106) and the slag (108). The device (400) acts as a barrier for the flow of molten iron (106) such that the slag (108) is allowed to flow over the device (400) while the molten metal (106) is retained in the slag-ladle (100). The device (400) has a sluice gate (406) and a chute (408) for indicating the flow of the slag (108) in the form of a pipe-like stream.

Abstract: The present invention provides a method of high efficient slag scooping-up from liquid iron and a device for implementing said method. The two wings of slag rake mounted to the front end of cantilever descend side by side until beneath the surface of the liquid iron at a certain depth. The two rakes make swing movement respectively along the surface of liquid iron. When gradually moving close to each other in the course of swing movement, they get put together and clamp the solid slag. Then, driven by the cantilever, the two slag rakes which clamp the sold slag are brought to ascend until above the surface at a certain height. Finally they leave the space over the ladle and discharge the slag. The deslagging rate can reach over 90%. It just takes less than 3 minutes for the whole process of slagging-off. Additionally, the iron carried away in the process of slagging-off could be greatly reduced. The iron loss rate can be strictly controlled within 0.1%.

Abstract: An embodiment in accordance with the present invention provides an apparatus and a method for skimming slag from molten metal including a base, wherein the base pivots around an axis, a mast mounted on the base, a carriage including wheels and the wheels engage the plurality of posts, an outer beam disposed perpendicular to the mast and within an inner space of the carriage, and including walls defining a slot and powered wheels, an inner beam disposed movably within the slot of the outer beam and in frictional contact with the powered wheels, and rams including one end mounted on the other beam and the other end mounted on one of the base or the mast. This configuration provides at least four degrees of freedom to the apparatus in order to skim the slag from the molten metal.

Abstract: A process for recycling composite materials includes the steps of feeding a quantity of composite material composed of at least one polymer and aluminum into at least one first reactor; heating the composite material in a non-oxidizing environment at a temperature sufficient to volatilize the at least one polymer and form a hydrocarbon by-product and aluminum in the at least one first reactor; feeding the aluminum free of the at least one polymer into a second reactor; and heating the aluminum in a non-oxidizing environment at a temperature sufficient to melt the aluminum in the second reactor.

Abstract: An embodiment in accordance with the present invention provides an apparatus and a method for skimming slag from molten metal including a base, wherein the base pivots around an axis, a mast mounted on the base, a carriage including wheels and the wheels engage the plurality of posts, an outer beam disposed perpendicular to the mast and within an inner space of the carriage, and including walls defining a slot and powered wheels, an inner beam disposed movably within the slot of the outer beam and in frictional contact with the powered wheels, and rams including one end mounted on the other beam and the other end mounted on one of the base or the mast. This configuration provides at least four degrees of freedom to the apparatus in order to skim the slag from the molten metal.

Abstract: A method for removing slag comprises: preparing a filter 21 of heat-resistant porous ceramics, which passes a molten metal and catches slag, liquidizing metal material to form a molten metal A on which slag is floating; and traveling filter 21 along a surface of the molten metal A and removing slag. And a device for removing slag comprises: a filter 21 of heat-resistant porous ceramics, which passes a molten metal and catches slag; and a driving device for traveling filter 21 along a surface of the molten metal on which slag is floating and removing slag.

Abstract: The invention provides an internal filter with an improved filtering ability of removing particularly fine inclusion particles from molten aluminum or molten aluminum alloy. The internal filter includes an aggregate meshed member made of a refractory material and a coating layer formed on a surface of the aggregate meshed member. The coating layer contains a soda silicate that is able to be softened or viscous at a temperature of the molten aluminum alloy.

Abstract: A method and apparatus for substantially smoke free separation and recovery of zinc from galvanizing skimmings and for refining the resulting ash to a by-product form. An essentially closed housing defining a skimmings receiving chamber and a skimmings processing chamber with a bottom opening is placed on or above a galvanizing kettle and extends into the molten zinc of the kettle so that molten zinc is present with a skimmings processing chamber. A motor driven agitator shaft having paddles is rotated within the skimmings processing chamber so that the ends of the paddles enter the molten zinc during each shaft revolution and enhance melting and recovery of the zinc.

Abstract: A device for removing dross from the surface of the molten metal and for extracting usable elemental metal from the dross. The device comprises a container in which the dross is collected, a means for lifting the container out of the molten bath of metal and an agitating means for chopping the dross to separate the elemental metal from the particles of metal oxides contained in the dross. Preferably, the container has perforations therein such that the elemental metal may drain through the perforations and back into the molten bath. The remaining dross is then dumped in a recycle bin by the device.

Abstract: In order to separate metals and/or metal alloys of different melting points from one another, a mixture of these metals and/or metal alloys is brought to a temperature at which the metal or the metal alloy of relatively low melting point is molten and the metal or the metal alloy of relatively high melting point is in the solid state. The solid constituents are separated from the melt, use being made of washing column with at least one filter which withstands the temperature of molten metal. Each of the filters is arranged in the wall of a separate pipe which extends through the washing column. The mixture is fed to one end of the washing column and moves along the pipe or pipes, towards means arranged at the opposite side of the washing column for removing solid crystalline material. The melt passes via the filter or filters into the pipe or pipes, and flows in countercurrent to the mixture situated on the outside of the pipe or pipes, towards a melt discharge.

Abstract: A system and process for decontaminating solder which includes a linking pipe with an internal heater in the path of solder flow into a skim tank and transfer pump and valves for moving decontaminated solder from the skim tank into a standby tank which in turn is able to provide decontaminated solder to a solder machine or back to the skim tank in order to test the system.

Abstract: A jet column reactor apparatus for moving molten metal in a bath of such metal is formed with a monolithic refractory body.

Abstract: A pushing machine is described, which is capable of running to opposite directions, upon remote control, along a length of rail provided in front of the mouth or slag hole of an electric furnace (10) for the smelting of iron products. It shows, at the end of an arm (5, 5a) telescopically extensible and preferably pivoting to be able to swing also in the vertical plane, a head or front shield (6) mounted on a frame (1) which can be anchored to the ground and is slidable on rails by means of wheels (2, 2' . . . ), at least two of which are driving wheels. Said shield (6), having a size slightly smaller than the slag hole, has the function of keeping the scrap at the inside of the furnace during the charging operation and keeping the threshold free of the slag without any operator's intervention.

Abstract: This invention relates to an apparatus for separating two fluids having different specific gravities. The invention also relates to a method for using the separating apparatus of the present invention. This invention particularly relates to the skimming of molten lithium metal from the surface of a fused salt electrolyte in the electrolytic production of lithium metal from a mixed fused salt.

Abstract: Disclosed is a method of removing slag from a body of molten iron comprising the steps of providing a body of molten iron in a crucible, the body having a layer of slag on the surface thereof, the crucible having a side thereof for removing slag therefrom. Means is provided for removing the slag at the side from the surface of the molten iron. Gas is injected into the molten iron to concentrate the slag on the surface adjacent the side for removing the slag to facilitate removal thereof. The concentrated slag is removed over the side by the means for removing the slag.

Abstract: In a dip soldering apparatus, a first scraper blade scrapes the surface of the solder bath before a pot is raised through the surface of the bath, and a second blade then scrapes the surface of solder in the pot when the pot has been lifted through the surface. The blades are swept around in a circle to facilitate operation of the device. A rotary station for feeding components to the soldering apparatus comprises a rotatable table carrying a plurality of pneumatically operated stations to index them sequentially through operating positions. The air supply lines, for pneumatic control and operation of each station, are discrete to the respective operating positions and so it is not necessary to provide a system of supply lines which rotate with the stations. An end of a supply line is sealed to a conduit in the table by a PTFE sealing member which has an inwardly directed, tapered lip. As air pressure in the line is increased (to operate the station) the lip is urged against the underside of the table.

Abstract: An automatic dross removal apparatus (10) is disclosed for removing dross from the surface of a solder bath (22) in an automated electric component handling system. A rotatable wiper blade (14) is positioned adjacent the solder bath (22) which skims the dross off of the surface prior to the dipping of a robot conveyed component into the bath. An electronic control circuit (34) causes a motor (32) to rotate the wiper arm (14) one full rotational cycle each time a pulse is received from a robot controller (44) as a component approaches the solder bath (22).

Abstract: A device for removing material from the free surface of a contained body of liquid comprises a scoop supported from a fixed member by two links that carry a substantially horizontal arm on which the scoop is mounted so as to be rotatable about the axis of the arm. The connections of the links to the fixed member and to the arm are pivotal connections at the four corners of a quadrilateral. First actuating means pivots the link about its connection to the fixed member thereby to move the arm to and fro substantially in a horizontal plane. Second actuating means rotates the scoop about the axis of the arm.

Abstract: By means of an electromagnetic stirrer there is produced in the melt within the melt chamber of the melting furnace a turbulent flow or pair of turbulent flows working in opposite directions and each having a substantially vertical turbulent flow axis. By means of this turbulent flow the upwardly floating slag is forced towards the outermost turbulent flow lines or regions and into an auxiliary chamber formed between a slag barricade and the furnace door. The melt can flow back from the auxiliary chamber into the melt chamber. The slag collected in the auxiliary chamber can be removed in predeterminate time intervals from the auxiliary chamber by means of a slag removal sliding or pusher element and disposed in an environmentally protective fashion in a slag container moved into position at the opened furnace door.

Abstract: A ladle slagging stand includes a tilting arrangement supporting a ladle, a slag vessel, and a slagging slide scumming the surface of the melt in the ladle placed on the tilting arrangement. In order to be able to seize all the gas and dust emissions forming during the slagging procedure, both the tilting means and the slagging slide, and the slag vessel are surrounded by a casing into which a suction duct enters. The casing includes at least one closable opening for introducing and removing the ladle and the slag vessel.

Abstract: An apparatus for removing dendrites or other crystalline matter from the surface of a liquid in a matter transport process, and an electrolytic cell including such an apparatus. A notch may be provided to allow continuous exposure of the liquid surface, and a bore may be further provided to permit access to the liquid.

Abstract: A nozzle or nozzles for spraying cooling water are disposed at the lower end of a slag suction path. A cooling water down-flow passage is provided on the outer periphery of an inner tube which constitutes a slag suction path. A water sump is provided below the cooling water down-flow passage, the water sump being located lower than the each nozzle. A lower end opening of the cooling water down-flow passage is disposed lower than the each nozzle and is submerged in water in the water sump. The cooling water down-flow passage, except the lower end opening, is adapted to be closed up. When the cooling water down-flow passage is closed up, water in the passage is stopped by atmospheric pressure acting upon the surface of the water in the water sump, so that it is prevented from flowing down.

Abstract: A deslagging rake includes a boom having a first section and a second section mounted on one end of the first section for pivotal movement about a vertical axis. A blade is mounted at the other end of the second section for pivotal movement about a generally horizontal axis. The boom may also include a support which engages the boom adjacent its other end and is mounted for pivotal movement about a second generally vertical axis.

Abstract: Dross is removed from molten lead during its refining by scraping the dross by means of a rake up a ramp fitted to the rim of the refining pot, a baffle being placed to trap dross in front of the ramp. The rake may be operated manually or by means of a power operated device.

Abstract: In the removal of a layer of fluid located on a bath, such as a layer of reaction products in pyrometallurgical crude-lead refining, the layer is propelled by an agitating mechanism into the intake of a stationary conveyor. The conveyor removes the layer of fluid through a trough from the bath.

Abstract: Solder pot apparatus comprising a tank divided into first and second sections by a common wall with holes therein below the level of molten solder in the sections for the transfer of molten metal between the sections. The wall has relatively low heat conductivity. The sections are heated by separately controlled heating elements, the heating elements for the second section having a heating capacity higher than that of the first section, so that solder ingots may be rapidly melted in the second section without substantially affecting the solder temperature in the first section. A ramp extends from the first section to the second section and a powered skimmer stirs metal, and removes dross from metal, in the first section and pushes the dross over the ramp into the second section. Also, the apparatus includes a metal surface level sensor in the second section and signals and an ingot feeder conrolled by the sensor.

Abstract: Apparatus for manipulating a tool for conditioning material within a high temperature furnace. The tool is secured in one end of an air-cooled boom while the other end of the boom is connected to a carriage that is arranged to move reciprocally within a horizontally-aligned gantry. The gantry, in turn, is adjustably supported upon a chassis mounted turntable that is capable of being driven over the ground by means of a pair of endless treads. The gantry is connected to the turntable by hydraulic lifters which independently raise or lower the gantry at two separate locations along its length to impart an expanded degree of maneuverability to the tool. Shock absorber means are also operatively associated with the boom to prevent the boom structure from being damaged in the event the tool becomes hung up in the furnace.

Abstract: Apparatus for supporting an extendable, elongated tool-handling boom within a gantry. The back end of the boom is rotatably supported in a carriage that is movably mounted in a gantry while the main body of the boom forward of the carriage is seated upon a rest carried within a cradle which is also movably mounted within the gantry whereby the relative position of the two boom support points can be altered as the boom is extended and retracted within the gantry. The boom is able to be lifted from the cradle seat in the event it becomes hung-up upon an obstacle while in use thereby preventing the boom from being damaged. A shock absorber is operably connected between the cradle and the boom which serves to return the boom to the cradle seat at a controlled rate.

Abstract: A smelting furnace for metal such as aluminum or aluminum-base alloy having a relatively low melting point comprising a rotatable lower furnace body having an upper opening and an upper furnace body secured to a frame and having a lower opening for covering the opening of the lower furnace body. A feed inlet chamber is formed in a peripheral portion of the upper furnace body and positioned above the opening of the lower furnace body. The feed inlet chamber has opposite side walls extending downward to the upper edge of the lower furnace body to separate the feed inlet chamber from the interior chamber of the furnace.

Abstract: A device for skimming floating material from a body of liquid, particularly useful with a pipe galvanizing apparatus for skimming dross from a zinc bath. The device includes paddles pivoted to a reciprocating carriage for dragging floating material to an edge of the vessel. The paddles pivot to positions in which their faces lie parallel with the direction of carriage movement to avoid pushing material back toward the interior of the vessel during return strokes of the carriage.

Abstract: A hot metal ladle tilter including a support stand having spaced-apart bearings, a ladle support frame pivotally mounted on the bearings for tilting about a tilt axis, the ladle support frame including two spaced-apart support members for readily receiving thereon a ladle to be tilted, a stop bracket fixedly positioned and engaging the ladle support frame to prevent the tilting thereof rearwardly, the center of gravity of the ladle support frame in combination with the ladle being disposed rearwardly with respect to the tilt axis to urge the ladle support frame against the stop bracket under gravity, an hydraulic motor for pivoting the ladle support frame about the tilt axis, and controls for actuating the hydraulic motor.

Abstract: Apparatus for the continuous sulphur drossing of lead to reduce its copper content including a plurality of reaction vessels arranged in series, each reaction vessel having a curved bottom and a stirrer for creating a vortex of the contents. Bullion and sulphur are fed into the series through a vortex at controlled rates and through the series at controlled temperatures and a controlled total reaction time, optimally between 8 and 15 minutes. The bullion, dross and unreacted sulphur, if any, are overflowed from vessel to vessel and into an unagitated vessel for separation of the dross and bullion. The bullion feed device splits the undrossed bullion into a metered stream and an unmetered stream, the unmetered stream being utilized to carry away the separated dross for further processing.

Abstract: A method of slagging off slag, especially treatment slag, from metal baths, particularly iron baths, in vessels such as crucibles and ladles, by means of a rabble while the vessel is slightly tilted. To this end, a slag-free zone starting at the lifted side of the vessel is created by means of a rinsing gas acting on the bath surface on the lifted side of the vessel so that the slag which originally covered the slag-free zone is partially displaced toward the vessel side opposite the slag-free bath surface. The rabble is then lowered onto the slag-free portion of the metal bath and while engaging the slag from behind, the rabble is pushed so as to force the slag over the vessel rim section opposite the slag-free bath surface.

Abstract: A method and apparatus for skimming liquids such as solder are provided for removing the surface layer to produce a clean fresh surface by breaking the surface at two parallel spaced confining boundaries and moving the confined surface unidirectionally.

Abstract: A device for the removal of slag from the surface of molten metal, comprising a frame made up of two parts articulated with, disposed at an angle to one another and carrying plate-like parts secured on the external side of the links of an endless chain encompassing rollers fixed on the frame. The frame is mounted on a slag-collecting vessel. One of the frame parts is adapted to be introduced into a furnace and another to be submerged into the vessel which is filled with a coolant. Secured on the frame part submerged into the vessel are knives facing one another with their blades and disposed with a clearance approximating the thickness of the plate-like parts passing therebetween. The device is equipped with a gear adapted to turn the frame part introduced into the furnace to set it to a position ensuring an intimate contact between the wide surfaces of the plates and the layer of slag, as the latter is being removed.