摘要:
The present invention concerns a process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process comprising a first roasting step (1) made in a first roasting reactor (16) and a second roasting step (3) made in a second roasting reactor (17). A gas mixture is formed from the first process gas component (2) obtained from the first roasting step(1)and from the second process gas component (4) obtained from the second roasting step (3). Post combustion of the gas mixture is made in a post combustion chamber (6). The post combustion operates with said reducing and sulphide rich first process gas component (2) and the second process gas component (4) as oxidizer gas in order to decompose SO3 in the gas mixture to reduce the SO3 content. The risk of accretion formation and corrosion in the post combustion chamber and in subsequent steps is reduced. Finally the exit gas (7) is exposed to sub sequent gas cooling and dust removal steps (8 to 11).
摘要:
A process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process comprising a first roasting step and a second roasting step. A gas mixture is formed from the first process gas component obtained from the first roasting step and from the second process gas component obtained from the second roasting step. Post combustion of the gas mixture is made in a post combustion chamber that uses the sulphide rich first process gas component and the second process gas component as oxidizer gas in order to decompose SO3 in the gas mixture. The exit gas is exposed to subsequent gas cooling and dust removal steps.
摘要:
A radial fan wheel comprising a number of fan blades symmetrically arranged with substantially equal spacing around the rotational shaft of the fan wheel. The blades are mounted between two end plates that are arranged perpendicularly to the shaft and are provided with blade surfaces which are substantially parallel to the shaft and each of which blade extends from one point at a distance from the shaft and substantially arched in the direction outwardly towards the periphery of the wheel. One first end plate is provided with a central air inlet and is shaped with a curve that, in a position radially outwardly from the innermost edges of the blades, substantially arches towards the second end plate and further radially outwardly towards the peripheral edges of the blades. Each blade is so designed in the peripheral segment that the blade extends radially longer outwardly adjacent the first end plate than the second end plate.
摘要:
The invention relates to a storage medium for storing information/data, wherein the storage medium comprises a dielectric storage material, more particularly a disk-shaped storage material on which a metal ion donor medium is arranged or can be applied on at least one side thereof. Metal ions can be transferred from the donor medium onto the storage medium by exposing the storage medium to radiation, more particularly to laser radiation. The invention also relates to a storage medium for storing information/data, wherein the storage medium comprises a dielectric storage material, more particularly a disk-shaped storage material having at least one local metal ion doping, wherein the metal ions can be converted into metal particles and/or metal particles agglomerations by means of radiation, more particularly laser radiation. The invention further relates to a method for storing and/or reading data with a storage medium, more particularly in accordance with one of the above mentioned claims, whereby doping of the storage medium/material with metal ions from a donor medium arranged on the storage medium/material is carried out by radiating the storage medium/material with a electromagnetic and/or particle radiation, more particularly laser radiation, or information in the storage material is stored in a dielectric storage material that is at least locally doped with metal ions through local metal particle formation from the metal ions by radiating the storage medium/material with electromagnetic and/or particle radiation more particularly laser radiation, and/or stored information is read by transmission and/or reflection scanning the storage material with the above-mentioned radiation.
摘要:
A radially expansible press plunge comprising two main parts named formation part (1) and expansion part (2) which are movable in relation to each other, and in which the expansion part (2) is arranged to provide an expansion of at least some part (16) of the press plunge when the said main parts (1, 2) are moved together, and in which the expansion part (2) comprises a cup formed expansion body (16), and in which the formation part (1) is designed with a formation surface (12) against which at least parts of the expansion body (16) is adapted to slide when the formation part (1) and the expansion part (2) are moved axially towards each other, and in which the expansion part (2) is materially composed of two different portions, namely an outer press portion (19) for executing the actual radially outwards directed contact pressure of the press plunge and consisting of a wear resistant, temperature resistant and elastic material, and an inner carrier portion (20) of a relatively hard, elastic material, preferably a material having a relatively low coefficient of friction, which carrier portion (20) carries the press portion (19).
摘要:
A device by a drinking cup (1) comprising a container (2) and a valve element (4), the valve element (4) being provided with, on at least a portion of its free edge portion (12), an abutment (14) for a sealing, actuable gasket (8), and wherein a user's lip is resting against the gasket (8) when the drinking cup (1) is in its operating position.
摘要:
The invention relates to a storage medium for storing information/data, wherein the storage medium comprises a dielectric storage material, more particularly a disk-shaped storage material on which a metal ion donor medium is arranged or can be applied on at least one side thereof. Metal ions can be transferred from the donor medium into the storage medium by exposing the storage medium to radiation, more particularly to laser radiation. The invention also relates to a storage medium for storing information/data, wherein the storage medium comprises a dielectric storage material, more particularly a disk-shaped storage material having at least one local metal ion doping, wherein the metal ions can be converted into metal particles and/or metal particles agglomerations by means of radiation, more particularly laser radiation.