The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1984
Filed:
Oct. 22, 1981
Gerald E Engdahl, Wheaton, IL (US);
Chicago Bridge & Iron Company, Oak Brook, IL (US);
Abstract
A freeze concentration apparatus comprising a cold concentrator tank; a conduit to deliver an aqueous liquid mixture feed stream to the cold concentrator tank; a conduit to feed the liquid mixture from the cold concentrator tank to a freeze exchanger for indirect cooling by heat exchange to a cold fluid to form ice crystals in the liquid mixture; a conduit to feed the liquid mixture containing ice crystals from the freeze exchanger to the cold concentrator tank; a conduit to withdraw liquid mixture from the cold concentrator tank concentrated by the freezing of water therefrom; a conduit to withdraw an ice slurry from the cold concentrator tank and deliver it to an ice slurry washer; a spray system to wash the ice slurry in the washer with water; a washer to collect washed ice and an aqueous mixture; a conduit to remove the aqueous mixture from the washer; and an unloader to remove the washed ice from the washer.