This tube is used in a proprietary process to feed used tires into a cement kiln. The tube, manufactured in Duraloy's proprietary alloy Super 22H®, is inserted through the outer wall of the rotating kiln.
Calciners are used for the heating and drying of powdered products. Typical calciner applications include the manufacture of pigments, dyes, and chemicals. The product is fed into one end of a rotating calciner, which is being heated on the outside while maintaining a very precise atmosphere inside. As the product moves through the calciner, heat is transferred through the calciner wall to achieve the desired temperature in the product.
Duraloy utilizes proprietary casting techniques and unique tools to integrally cast these lifters to the inside of a calciner. The lifters are used to tumble the product inside the calciner during the heating cycle.
Duraloy produces a variety of radiant tube assemblies, like the special fabricated assemblies shown here. These "inner" tubes are centrifugally cast, then Duraloy welds flanges and spacer bars to the outside of the tube. These tubes are then slid inside of a larger tube, with the spacer bars being used to maintain a consistent spacing between the inner and outer tube. The result is a tube assembly where gas is burned inside the inner tube, travels the length of the inner tube and returns along the outside of the inner tube to the discharge port.
Duraloy is leading the way in the development of cast intermetallic alloys, such as the nickel aluminide roll shown here. Nickel aluminides and iron aluminide are intermetallic alloys developed invented and patented by Oak Ridge National Laboratories in Tennessee. Nickel Aluminides have shown exceptional strength and resistance to creep at high temperatures as well as good resistance to oxidation and carburization. This roll is for a hydrogen furnace in a steel mill.
Duraloy casts centrifugal tubes up to 48 inch diameter for a multitude of applications such as calciners for powder processing applications. Duraloy also can fabricate assemblies from large diameter cast tubes. This is a sampling of some of our molds.
These deflector blocks are used in the power generation industry to deflect and diffuse coal powder that is being injected into a steam boiler combustion unit. The blocks are suspended in the end of the injector tubes and allow the coal powder to be more rapidly and thoroughly combusted in the heating chamber.
Duraloy fosters innovative thinking and partnerships. Let Duraloy Technologies core competency of specialty high alloys assist your business today. Duraloy has a successful history of using our specialty alloys in new applications.