摘要:
The present invention regards a method for determining the surface weight of a mineral wool mat (26), in which the mineral wool is transported from the spinner aggregate (13) to a collector band (64, 25) worn by a gasformed transportmedium. Some property of the gas formed medium at the time of separating same from the mineral wool shaped is measured and used for controlling the speed of the collector band (25) in order of eliminating any variation of the surface weight of the mineral wool mat (26) produced.
摘要:
A method for controlling the surface weight of a mineral wool mat (39) comprises production of the mineral wool by fibration of a mineralic melt (12). transfering the formed mineral wool to a collection device (36), and measuring one or more variables. influencing the amount of mineral wool formed per unit of time. introducing said variables into a functional combination and controlling under influence thereof the movement of the collection device, whereby the surface weight of the mineral wool mat is measured by weighing (44), and the functional combination is brought to contain one ore more parameters. the value of which is changed by influence from a counter unit (20) on basis of the amount of mineral wool produced per unit of time as well as on basis of the corresponding amount of mineral wool produced during one or more earlier periods of time.
摘要:
A method and an apparatus for transferring a layer of mineral wool from one conveyor (3) to another one (14) whereby mineral wool fibres (1) received from a spinning chamber (2) are continuously collected on a first conveyor (3) from which a mineral wool path or layer (4) formed by said fibres (1) is to be transferred to a second conveyor (14) for further treatment of the mineral wool path (4). An optimum large amount of the mineral wool path (4) is moved over to an intermediate conveyor (11) at a delivering point (17) of the first conveyor (3) and is by said intermediate conveyor (11) moved on and is deposited on said second conveyor (14) at receiving point (18). Such fibres and flocks of mineral wool which remain on the first conveyor (3) subsequent to the delivering point (17) are released from the first conveyor (3) by a cleaning apparatus (19) and are transferred to the said second conveyor (14) at a point advanced of the receiving point (18) thereof for the mineral wool path (4) transferred by the intermediate conveyor (11) and are combined at the said receiving point (18) with the mineral wool path (4) received from the intermediate conveyor (11)
摘要:
A hydraulically binding composition which comprises cement and reinforcement fibres of a mineralic substance like glass and which may contain a grained formed ballast substance like sand, and the composition also includes a contraction compensating component in the form of particles of an elastomeric material, preferably finely ground rubber or bundles of fibres of for instance asbestos or a cellulose material or a combination of elastomeric particles and bundles of fibres.