Abstract:
There is provided a dispersion apparatus for use with a solid fuel burner. The dispersion apparatus comprises a passage through which particulate material may flow toward an outlet region for dispersal therefrom, the flow being at least in part rotational about the longitudinal axis of the passage. The dispersion apparatus also comprises a downstream guide means arranged within the passage at or near the outlet region, the downstream guide means configured to at least reduce the rotational motion so that the flow progresses toward the outlet region in a substantially uniform manner in a direction aligned with a longitudinal axis of the passage.
Abstract:
A method of fluxing or degassing a molten metal residing as a bath in a furnace. The bath of molten metal includes a bath surface height and the method provides at least one rotating impeller in the molten metal bath to initiate a flow of the molten metal. The flow in the molten metal results in elevating a portion of the molten metal above the bath surface height where at least one of a fluxing agent and an inert gas is introduced into the elevated portion of the molten metal.
Abstract:
Combined microwave heating and plasma/electric arc heating is utilized in several processes and apparatus which involve co-production of pig iron and high quality syngas, biomass to liquid fuel production, coal to liquid fuel production, co-gasification of biomass and coal, municipal solid waste treatment, waste-to-energy (agriculture waste, ASR and PEF), EAF dust and BOF sludge treatment to recover zinc and iron, hazardous bottom ash vitrification, and bromine, chlorine and sulfur removal/recycling.
Abstract:
A hydraulic distributor for safely and efficiently top charging a bell-less blast furnace. The hydraulic distributor includes a main housing, an inner ring, a trunnion, and an actuator ring, which act together to lift and rotate the distributor chute. Hydraulic tilt cylinders operatively coupled to the inner ring act to lift the distributor chute to change tilt. Rotational Drives operatively coupled to the trunnion act to rotate the distributor chute. The hydraulic distributor provides improved repeatability and precision control of the distributor chute, and hence the placement of burden materials within the blast furnace resulting in improved productivity and operation of the furnace. The hydraulic distributor provides a less complex design and construction resulting in reduced costs for manufacturing and maintenance.
Abstract:
An apparatus for melting and refining impure nonferrous metals, particularly scraps of copper and/or impure copper originating from the processing of minerals comprising a tiltable reverberatory furnace (32) with a furnace body (34) that has a base with a rectangular plan shape and is provided with two mutually opposite heads (37, 38), which are mutually connected by a bottom wall (39), by an upper wall or ceiling (40) and by two side walls (41, 42), the furnace being provided with means (45) for the tilting of the furnace body (34) about an axis (34a) which is substantially horizontal and perpendicular to the heads (37, 38); the furnace has, in a central region of the upper wall (40), a portion (50) that protrudes upwardly from the remaining portion of the upper wall (40) and is delimited in an upper region by a flying buttress-like wall (51) and laterally by two mutually opposite side walls (52, 53), the portion (50) having, on the side that faces the flying buttress-like wall (51), a loading port (54), which is closed by a door (55) movable to open and close the loading port (54).
Abstract:
A distribution chute (100) for a charging device of a metallurgical reactor comprises an inner wear protection (104) defining a sliding channel for charge material and an elongated chute body (102) supporting the wear protection and comprising mounting members (122) for mounting the chute to a charging device. The chute (100) includes a cooling arrangement (130) with tube sections (132) for protecting the distribution chute against heat. According to the invention, the chute body comprises a rigid structural frame (150) that incorporates the tube sections (132) as integral structural elements to support the inner wear protection (104).
Abstract:
A charging device for a metallurgical reactor comprises a stationary housing having a lower housing part (104) with an annular rotor (108) therein and an upper housing part (106) having at least one charge material inlet (112; 114) that is offset from the axis of rotation of the rotor (108). The rotor (108) supports a distribution member (116) for distributing charge material circumferentially about its axis of rotation. A feeder spout (120) inside the stationary housing has a longitudinal axis and channels charge material through a central passage (110) in the rotor (108) onto the distribution member (116). A conduit-connecting rotary joint (130) has a stationary part (134) and a rotary part (132) and connects a stationary conduit (154; 155) to a rotary conduit (152; 153) for fluid supply to the rotor (108) and/or to the distribution member (116). The feeder spout (120) has an inlet section (122) arranged in the upper housing part (106) and an outlet section (124) arranged at least partially in the lower housing part (104). The feeder spout (120) is rotatably supported and coupled in rotation to the rotor (108) to rotate together therewith. According to the invention, the rotary joint (130) has a joint diameter that is smaller than the width of the central passage (110) in the rotor. The feeder spout (120) further comprises a support (140) having at least one spoke member (142) fixed to the feeder spout (120) and supporting the rotary part (132) of the rotary joint (130) coaxially with the longitudinal spout axis and above the outlet section (124). The rotary conduit (152; 153) passes from the rotary part (132) of the rotary joint (130) via the support (140) and via the outside of the feeder spout (120) to the rotor (108) and/or to the distribution member (116).