Sugar – starch – and carbohydrates – Apparatus – Treating sacchariferous material
Patent
1988-02-25
1989-10-24
Pal, Asok
Sugar, starch, and carbohydrates
Apparatus
Treating sacchariferous material
127 9, 127 15, 127 16, 127 17, 324 52Q, 324 61R, 324436, 324442, 324443, B01J 200
Patent
active
048759406
ABSTRACT:
The invention provides an apparatus for controlling both the supersaturation of the mother liquor and the crystal content of massecuite by measuring di-electric constant and electrical conductivity at radio frequencies by means of a probe which is included in a circuit which may be tuned to a fixed setting or may be variably tuned, the combined impedance is measured as a function of the tuning and the measurements are compared with predetermined desired values. By suitable combination of the two signals, measurement of crystal content and mother liquor supersaturation can be controlled.
REFERENCES:
patent: 3899386 (1975-08-01), Komiyama et al.
patent: 4196385 (1980-04-01), Vestergaard et al.
patent: 4468610 (1984-08-01), Hanson
patent: 4468611 (1984-08-01), Tward
patent: 4547725 (1985-10-01), Oetiker et al.
patent: 4549134 (1985-10-01), Weiss
patent: 4555941 (1985-12-01), Fathauer et al.
"Influence of Controllable Massecuite Properties on Crystallizer Processing and Molasses Exhaustion", Cane Sugar Handbook, 9th Edition, pp. 222 and 223.
"Recent Developments in Pan Boiling Automatics", International Sugar Journal, vol. 86, No. 1023, 1984, by Gunther R. Moller, pp. 73-79.
"The Use of Electrical Properties Measured at Radio Frequencies for Pan Boiling & Brix Control", Proceedings of the South African Technologists' Association, Jun. 1986, by D. J. Radford et al., pp. 94-102.
Pal Asok
The Tongaat-Hulett Group Limited
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