Kansai Chemical Eng. Col. Ltd.

Kansai Chemical Engineering Co., Ltd.

Takaya Inoue

Hideo Noda

Hiroshi Yamaji

Hiroshi Ooshima

Hiroaki Ueda

Yasuo Noda

A device includes an agitation tank, a liquid circulation means for circulating a liquid along a tank wall of the agitation tank, and at least one auxiliary heat transfer means provided inside the agitation tank, wherein the auxiliary heat transfer means is constantly put in a wetted state.

Heat transfer device

With a liquid ejection apparatus where a liquid-transporting body is attached to an agitator shaft, the liquid-transporting body is revolved about the agitator shaft, with the rotational speed being changed in accordance with a change in liquid depth. Hence ejection liquid ejected from an upper opening of the liquid-transporting body over a large ejection distance and in sufficient volume, is distributed onto the inner surface of the tank and/or into the space above the liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, dispersing a foam layer on the liquid surface, and promoting evaporation of liquid in the tank.

Method for distributing liquid by controlling rotation speed of a shaft as a function of the liquid depth in a tank

A liquid ejection apparatus has gutter bodies secured to an agitator shaft at predetermined inclination angles or gutter bodies or tubular bodies attached to these agitator shaft so that the size of the inclination angles are adjustable. The gutter bodies or tubular bodies of the liquid ejection apparatus are revolved around the agitator shaft so that liquid is ejected from the respective upper openings of the gutter bodies or tubular bodies. This liquid is distributed onto the inner surface of a tank, and/or into a space above a liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, and promoting evaporation of the liquid in the tank.

Liquid ejection apparatus and liquid ejection method

A liquid ejection apparatus has gutter bodies secured to an agitator shaft at predetermined inclination angles or gutter bodies or tubular bodies attached to the agitator shaft so that the size of the inclination angles are adjustable. The gutter bodies or tubular bodies of the liquid ejection apparatus are revolved around the agitator shaft so that liquid is ejected from the respective upper openings of the gutter bodies or tubular bodies. This liquid is distributed onto the inner surface of a tank, and/or into a space above a liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, and promoting evaporation of the liquid in the tank.

An agitator blade comprises one or more cylindrical local agitators which have inner fabrics therein and are radially mounted on a mounting frame, which in turn is secured to an agitator shaft. The inner fabrics can include, for example, one or more twisted plates, one or more orifice plates, a plurality of bent plates, which are disposed in an alternately inverted relationship with one another so that the facing bent peripheral side of the adjacent bent plates cross each other, a plurality of flat plates or one or more net-like sheets. The agitator shaft is rotated by a motor to drive the local agitators to mix the fluid throughly. When applied for agitation and mixing processes, the agitator blade of this invention can realize a high degree of mixing easily and reliably in a short period of time and with a small driving power. Further, the construction of this agitator blade is simple.

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Takatsuki, Japan

Takaya Inoue