Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1978-07-03
1980-07-01
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 9, 65 29, C03B 3700
Patent
active
042104327
ABSTRACT:
A method is provided for controlling the surface weight of a mineral wool mat in a process in which fibers of mineral wool are produced by spinning a mineral melt and the mineral wool formed from the fibers is transferred to a collection device using a stream of gas which is separated from the mineral wool in the collection device, the mineral wool forming a mat on a collection band. The method concerns measuring at least two variables which influence the amount of mineral wool formed per unit time and predicting, based on these measurements, the production of mineral wool at a predetermined future point in time. The surface weight of the mineral wool mat is measured along with the speed of the collection band and these quantities are used to determine the actual amount of mineral wool produced at the predetermined time. The values corresponding to the actual and predicted amounts are compared to determine the error in the latter and this information together with updated measurements of the two variables is used to make a new prediction.
REFERENCES:
patent: 3539316 (1970-11-01), Trethewey
Aberg Ulf L.
Brelen Hans E. O.
Dahlberg Arvid S.
Lindsay, Jr. Robert L.
Rockwool Aktiebolaget
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