Liquid purification or separation – With repair or assembling means
Patent
1995-06-07
1997-08-12
Lithgow, Thomas M.
Liquid purification or separation
With repair or assembling means
210406, 210407, 210454, 210482, 210436, B01D 2970, B01D 2984, B01D 2996, B01D 3531
Patent
active
056561610
ABSTRACT:
An improved salt basket for dewatering solids, particularly salts resulting from evaporation of industrial wastewaters. The salt basket system includes a pressurizable vessel having a screen floor situated above a bottom liquid collection head, an inlet for the brine/solids slurry from which solids are to be separated and dried, an inlet for air, an inlet for steam (the latter two inlets may be combined, where convenient), an inlet for solids free feed, and a drain outlet (these two may be combined where convenient into a combination feed/drain connection). Preferably, an automated system for introducing feed brine and for removing the solids product is provided. For safety, a pivotally attached lower door has a hydraulic failsafe closure mechanism and locking safety latches to prevent the door from inadvertently opening. The process control design minimizes exposure of the salt basket interior to supersaturated solutions with precipitating solids therein, thus reducing scaling of the salt basket, by introducing feed brine rather than magma (crystal/concentrated liquor slurry) to the salt basket between crystal harvest cycles.
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Bostjancic Joseph
Jones George R.
Peterson Dan
Solomon Robert L.
Standiford Ferris C.
Goodloe, Jr. R. Reams
Ionics Incorporated
Lithgow Thomas M.
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