Kansai Chemical Engineering Co., Ltd.

Kansai Chemical Eng. Col. Ltd.

Hiroshi Yamaji

Hideo Noda

Tadahiro Mukaida

Takaya Inoue

Nobuyuki Kuratani

Kunio Kataoka

An evaporator of the present invention includes an agitation vessel having a volatile component outlet and a concentrate outlet and configured to receive a raw material liquid, a heat source provided inside the agitation vessel, a liquid distributing portion provided within the agitation vessel and configured to cause the raw material liquid to flow down the heat source, and a first condenser provided on an outer circumference of the agitation vessel and configured to cool an inner wall of the agitation vessel. The evaporator of the present invention is useful in, for example, the concentration of various liquid chemicals and chemical products and the removal of volatile impurities from these chemicals and chemical products.

Evaporator

An evaporation device including an agitation vessel to which raw material liquid is supplied. The agitation vessel has a volatile component outlet and a concentrate outlet, a jacket provided on an outer circumference and configured to heat an inner wall, and a liquid-distributing portion configured to cause the raw material liquid to flow down the inner wall. The agitation vessel includes storage portion surrounded by a bottom, the inner wall, and a partition wall portion configured to temporarily store the raw material liquid that flows down, the liquid-distributing portion is constituted by a rotating shaft and at least one channel part having a flow passage which, as the rotating shaft rotates, the raw material liquid temporarily stored in the storage portion flows upward from a lower side of the agitation vessel. The channel part is mounted to the rotating shaft, and the concentrate outlet is provided in the bottom.

Evaporation device

The present invention provides a multi-structured internal heat exchange-type distillation column including at least an outermost heat exchange section, an intermediate section, and an innermost heat exchange section, in which the innermost heat exchange section is isolated from the intermediate section, the outermost heat exchange section is also isolated from the intermediate section, the outermost heat exchange section and the innermost heat exchange section are in communication with one another through at least two vapor tunnel connecting ports, a channel is formed inside the outermost heat exchange section in such a manner that, in a case where at least one of the vapor tunnel connecting ports serves as an inlet for vapor from the innermost heat exchange section into the outermost heat exchange section, and the other vapor tunnel connecting port serves as an outlet for vapor from the outermost heat exchange section back to the innermost heat exchange section, the vapor can smoothly flow in one-way traffic from the inlet toward the outlet, and either the outermost heat exchange section and the innermost heat exchange section, or the intermediate section, is a rectifying section, and the other is a stripping section. The distillation column of the present invention has excellent efficiency of internal heat exchange.

Multi-structure internal heat exchange type distillation tower

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.

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Amagasaki, Japan

Hiroshi Yamaji