Device for preparing high-quality mixtures of a solid and a liqu

Details Device for preparing high-quality mixtures of a solid and a liqu Device for preparing high-quality mixtures of a solid and a liqu

1984-02-21

1986-02-04

Coe, Philip R.

Agitating

Method

366601, 366137, 241 4617, B01F 312

Patent

active

045681961

ABSTRACT:
A device for preparing high-quality mixtures of a solid and a liquid extending to a colloidal system, for treating water or for introducing gases and liquids. The device has a mixture-receiving tank equipped with a motor-powered mixer that has a drive shaft provided with mixing elements. The mixing elements rotate at a peripheral speed ranging from 60 to 500 m/sec during an initial interval of the time taken to process a mixture of a solid and a liquid. Controls are provided that can reduce the peripheral speed of the mixing elements to a minimum in accordance with the viscosity of the mixture of a solid and a liquid. The minimum speed can range from to 20 to 60 m/sec and is maintained constant up to the end of the preparation time. The device can be operated discontinuously or continuously. In the latter case the heavy phase of the charge is conveyed into an extraction line by means of a pump and the light phase through a recirculation line back into the tank into which some of a fresh mixture of a solid and a liquid is introduced.

REFERENCES:
patent: 1291877 (1919-01-01), Herrbold
patent: 2623961 (1952-12-01), Holstein
patent: 3556487 (1971-01-01), Nauta
patent: 3871272 (1975-03-01), Melandri
patent: 3920227 (1975-11-01), Davis, Jr.
patent: 4037794 (1977-07-01), Melliger
patent: 4050637 (1977-09-01), Eirich et al.
patent: 4286883 (1981-09-01), Johanson
patent: 4464055 (1984-08-01), Mercatoris et al.

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