Liquid purification or separation – Processes – Separating
Patent
1995-04-06
1996-10-01
Upton, Christopher
Liquid purification or separation
Processes
Separating
210791, 210386, 210396, 210400, B01D 3346
Patent
active
055608345
ABSTRACT:
A machine for conditioning a flocculated mixture formed by adding high molecular weight polymer to a slurry of ultrafine particles such as are found in mining silts, clays, sludges and the like. With this machine, such mixtures, which have already been partially dewatered, can then be substantially further dewatered. Reductions to between about 27% and 30% moisture content have been obtained. The machine includes a perforate endless conveyor belt onto which a continuous flow of the mixture is deposited and an array of stationary inverter plates and rollers in which pairs of rows of plates alternate with the rollers, both the plates and the rollers extending downwardly into the mixture as it is being moved on the belt. The rollers in the array squeeze water out of the mixture without disrupting bonds between the polymers and ultrafine particles and, in the process of applying pressure, contribute to the formation of new bonds. Rollers further downstream are set to apply increasingly higher pressures to the mixture, the pressures corresponding with the anticipated decreases in the moisture content of a particular mixture as it moves along the belt. Such adjustments, together with individually setting the orientations and heights, relative to the belt, of each row of plates, allow the plates and the rollers to interact so as to knead the mixture, enhancing its cohesiveness. Downstream of the array, the mixture is squeezed, one last time, between the belt and a high pressure roller, expelling additional water from the mixture.
REFERENCES:
patent: 2097529 (1937-11-01), Nordell
patent: 3984329 (1976-10-01), Wenzel et al.
patent: 4354935 (1982-10-01), Austin et al.
patent: 4602998 (1986-07-01), Goron
patent: 4609467 (1986-09-01), Morales
patent: 4729836 (1988-03-01), Ickinger et al.
patent: 4857193 (1989-08-01), Clements et al.
patent: 4986911 (1991-01-01), Goron et al.
patent: 5026487 (1991-06-01), Abdulmassih
patent: 5059322 (1991-10-01), Austin
Leon Harry I.
Steadman Vivian L.
Upton Christopher
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