Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With testing – sampling or analyzing
Patent
1990-03-21
1991-12-03
Hastings, Karen M.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With testing, sampling or analyzing
73 63, 73 61R, 162198, 162263, D21F 1300, G01N 504
Patent
active
050697536
ABSTRACT:
In a method and apparatus for making a dry sheet-like sample of solid particles from a suspension, a part of the suspension is sampled by a sampling unit as it flows through a pipe or while it is retained in a storage tank, then the sampled suspension is stirred by supplying a compressed air and then dewatered by filtration with vacuum, thereby forming a wet sheet-like intermediate sample of solid particles deposited on a filter. Subsequently, the filter and the intermediate sample deposited thereon are conveyed by an overturning conveyor unit to a drying station while being turned upside down, thereafter intermediate sample is removed from the filter by a sample removing unit, and finally, the wet sheet-like intermediate sample is dried with heat and pressure whereby a dry sheet-like final sample is obtained.
REFERENCES:
patent: 3152036 (1964-10-01), Box et al.
patent: 3585106 (1971-06-01), Sepall et al.
patent: 4323426 (1982-04-01), Cowan et al.
patent: 4662991 (1987-05-01), Karna et al.
patent: 4708011 (1987-11-01), Rantakorpi et al.
Hastings Karen M.
Kyoritsu Electric Corporation
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