摘要:
According to the method, granular ore or ore concentrate is introduced into a kiln (1) for roasting the ore at temperatures of 400 to 1050 DEG C, whereby the ore in the kiln forms a stationary fluidised bed (3). The ore is projected onto the fluidised bed through an opening (16) in the kiln housing located above said fluidised bed, the ore being accelerated by the blades (14a) of a rotating projection wheel. Said projection wheel (14) lies outside the kiln in the vicinity of the housing opening. Preferably, the speed of the projection wheel is variable and the projection wheel can be displaced and/or pivoted in relation to the kiln.
摘要:
According to the method, granular ore or ore concentrate is introduced into a kiln (1) for roasting the ore at temperatures of 400 to 1050 °C, whereby the ore in the kiln forms a stationary fluidised bed (3). The ore is projected onto the fluidised bed through an opening (16) in the kiln housing located above said fluidised bed, the ore being accelerated by the blades (14a) of a rotating projection wheel. Said projection wheel (14) lies outside the kiln in the vicinity of the housing opening. Preferably, the speed of the projection wheel is variable and the projection wheel can be displaced and/or pivoted in relation to the kiln.
摘要:
A method and an apparatus for sintering a compact of particulate material for a ceramic or of particles of metal, or a ceramic precursor film, wherein the sintering is performed by heating and burning the compact or the ceramic precursor film while applying centrifugal force to the compact or the ceramic precursor film.
摘要:
A method and an apparatus for sintering a compact of particulate material for a ceramic or of particles of metal, or a ceramic precursor film, wherein the sintering is performed by heating and burning the compact or the ceramic precursor film while applying centrifugal force to the compact or the ceramic precursor film.
摘要:
In an apparatus for introducing waste materials and/or alternative fuels into a clinker production plant, the apparatus comprising a tubular housing (2) with a rotor (4) which can be driven in a rotary manner is mounted such that it can rotate substantially concentrically in relation to the tube axis (3) and has a plurality of beating elements (5) arranged on the circumference of the rotor (4), the housing (2) is adjoined by at least one line (6) for feeding the waste materials and/or alternative fuels and a discharge opening (7) transversely in relation to the axis of rotation (3) of the rotor (4), wherein the beating elements (5) are formed as rows (17) of wires (16).
摘要:
Gas is dispersed into molten metal by immersing a shaft-supported impeller (20, 40) into the molten metal and by pumping gas through the shaft (40) and out of the impeller (20). The impeller (20) is in the form of a rectangular prism having sharp-edged corners (39) that shear the gas into finely divided bubbles. The particular shape of the impeller (20) provides an especially effective bubble-shearing and bubble-dispersing action.