US 6,386,752 B1Granted

Coagulation reaction device

AssigneeEbara Corporation

InventorsTakao Hagino, Shyoiti Gohda, Hideyuki Yoshida, Kiyoshi Uchiumi

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Abstract

The present invention provides a concentration type aggregation reaction apparatus having a concentration screen, which enables an aggregation reaction to be conducted in sludge and the sludge to be concentrated by separation of a liquid by means of a single apparatus. The concentration screen is in a cylindrical form and includes slits having horizontal openings. A decelerating device is connected to an upper portion of a shaft for an agitator for agitation in the tank and brushes are connected to the decelerating device. The brushes are adapted to revolve along opposite surfaces (on a primary side and a secondary side) of the screen. By use of these brushes, aggregates adhered to the screen are continuously removed.

Claims8

Dependent claims

A concentration type aggregation reaction apparatus for conducting an aggregation reaction and concentration of a liquid to be treated, comprising:

a reaction tank substantially in a cylindrical form;
a concentration screen substantially in a cylindrical form, which is located at an upper portion of the reaction tank;
and
a shaft for an agitator for agitation in the tank, the shaft vertically extending through a substantially central portion of the reaction tank and the concentration screen,
wherein the concentration screen includes slits having horizontal openings, a decelerating device is connected to an upper portion of the shaft for the agitator, brushes adapted to revolve along a primary side and a secondary side of the concentration screen are connected to the decelerating device and aggregates adhered to the concentration screen are continuously removed.

2 more elements

Dependencies are inferred from the claim text.