Mixer for cementitious materials

Details Mixer for cementitious materials Mixer for cementitious materials

1996-02-12

1998-01-20

Jenkins, Robert W.

Agitating

Mortar mixer type

With dynamic charging

588252, B28C 704

Patent

active

057094667

ABSTRACT:
An improved mixer for cementitious materials is described. This mixer is mobile and carried to the desired site and comprises a series of tanks and bins for containing the material to be mixed. The device is particularly useful in mixing hazardous wastes (e.g. low level radioactive soils, for example) within cementitious material along with sealants and chemicals designed to encapsulate the hazardous wastes therein. In order to thoroughly mix, and thus contain the hazardous wastes, the residence time within the mixing means must be between 4 and 45 seconds. This residence time may be achieved by keeping the mixing means within certain parameters of angles, relative to the ground, speed of mixing and length of mixing. By carefully controlling these variables, it is possible not only to achieve thorough mixing and encapsulation of the hazardous waste and to make a mobile mixing device that is extremely useful within the metes and bounds of the invention.

REFERENCES:
patent: 3456925 (1969-07-01), Gallagher
patent: 3917236 (1975-11-01), Hanson
patent: 4245915 (1981-01-01), Bracegirdle
patent: 4922463 (1990-05-01), Zotto
patent: 5171121 (1992-12-01), Smith et al.
patent: 5482528 (1996-01-01), Angell et al.
patent: 5484533 (1996-01-01), Crawford et al.

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