摘要:
A method of manufacturing direct reduction iron and a reduction firing apparatus. The apparatus has a reduction furnace including a left chamber, a right chamber, a material containing device, a step mechanism, a slag distributing device, a charging device, heating burners, a fume extraction path, a charging device, a material receiving tank and a slag discharging path. The method includes the following steps: distributing and charging the slag in the material containing device; carrying and sending the material containing device through a preheating station, a heating station and a reduction station sequentially. Meanwhile, heating the material to be reduced by a combustion of fuel with the heating burners; discharging the reduced material into the material receiving tank; placing the material device from which the material is discharged into the feeding side of the other chamber, then a next work circulation begins.
摘要:
Disclosed in the present invention are a combustion furnace with coaxial staged hearth and heating method thereof, in which the combustion furnace comprises a metal furnace body (40) whose internal part is provided with a furnace chamber. The furnace chamber is divided into two sections at the middle by fire resistant material to form a left and a right independent combustion chambers (18, 19). Two independent combustion chambers (18, 19) are respectively connected with the ends of flue gas chambers (2, 60), while the other ends of the flue gas chambers (2, 60) are respectively connected with a burner (3). The peripherals of two independent combustion chambers (18, 19) are respectively provided with a flue gas heat radiation pipe (14). A middle flue gas chamber (100) is set in the middle position of the furnace chamber. Two ends of the flue gas heat radiation pipe (14) are respectively connected with the flue gas chamber (2, 60) and the middle flue gas chamber (100). Two independent combustion chambers (18, 19) are communicated with each other through the flue gas chamber (2, 60), the flue gas heat radiation pipe (14) and the middle flue gas chamber (100), and combust alternately. A suspension device including a portal frame (50) is provided for suspending the metal furnace body (40) horizontally or obliquely. The metal furnace body (40) is suspended on the portal frame (50) at a suspending point (41). A walking mechanism (20) and a feeding mechanism (9) are also set on the portal frame (50).
摘要:
A discharge assembly for removing material from a hearth in a rotary hearth furnace including a discharge auger and a coolant spray. The discharge auger is positioned above the hearth of the rotary hearth furnace and includes a central shaft having at least one helical flight affixed to the exterior of the central shaft and the hood is disposed above the discharge auger. The coolant spray cools the discharge auger.
摘要:
A tunnel kiln for firing ceramic shaped bodies including a preheating zone, a firing zone and a cooling zone. Arranged in the preheating zone is a recovery circuit composed of a decomposition product receiving part and a discharge port for discharging the recovered decomposition product.
摘要:
The baked object taking-out apparatus is an apparatus that takes out a baked object from a baking base plate including a disposing surface on which the baked object is disposed. The baked object taking-out apparatus includes a robot arm, a holding member that is provided on the robot arm, that is formed of a metal material, and that is capable of holding the baking base plate, and a protective member that is formed at a portion of the holding member which comes into contact with the baking base plate and that is configured with a ceramic coating which contains a ceramic component.
摘要:
A method of manufacturing a permanent magnet comprises a solution heat treatment. The solution heat treatment includes: performing a heat treatment at a temperature TST; placing a cooling member including a first layer and a second layer on the first layer between the heater and the treatment object so that the first layer faces the treatment object; and transferring the treatment object together with the cooling member to the outside of a heating chamber, and cooling the treatment object until a temperature of the treatment object becomes a temperature lower than a temperature TST−200° C. In the step of cooling the treatment object, a cooling rate until the temperature of the treatment object becomes the temperature TST−200° C. is 5° C./s or more.
摘要:
A plant for recovering metals and/or metal oxides from industrial process waste, in particular oil product refining waste, comprises a furnace; a feed line connected to a main inlet of the furnace and configured to feed the furnace with a solid waste containing metals, in particular in oxide form; an outlet line, connected to a solid phase outlet of the furnace and configured to draw a metal-enriched solid phase out of the furnace; the furnace is a belt conveyor furnace having a belt conveyor closed in a loop with a substantially horizontal configuration and having a top face, which receives the waste to treat and conveys it between two longitudinal opposite ends of the belt conveyor furnace respectively provided with the main inlet and the solid phase outlet.
摘要:
Contact lens curing systems and methods are described. A contact lens curing system includes an oven that has a plurality of curing zones, a mold advancement system for moving contact lens mold assemblies between the plurality of zones, and a controlled atmosphere the curing zones that provides a substantially chemically inert environment in which contact lens precursor materials can be polymerized in contact mold assemblies located in the curing zones. Methods of producing contact lenses include curing contact lens precursor materials in contact lens mold assemblies in the lens curing system.
摘要:
A method of thermally processing work pieces including providing an insulated chamber having a first end, an opposing second end, and a middle portion disposed between the first and second ends, wherein the first end is inclined with respect to middle portion, creating a thermal gradient within an interior of the insulated chamber, and providing a means for gradually moving a workpiece from the first end to the second end within the created thermal gradient.
摘要:
A carbon baking furnace has at least one vertical baking shaft with a system and method for positioning green carbon bodies to be baked at the top of the vertical baking path and ringing the green carbon bodies with a sacrificial medium such as packing coke. The disclosure provides a system and method for controlling the delivery and removal of the sacrificial medium used to surround the carbon bodies within the baking paths. A volatile extraction system and method are provided. A system and method for unloading baked carbon bodies is disclosed.