Nippon Steel Sumitomo Metal Corporation

Nittetu Chemical Engineering Ltd.

Tsukishima Kankyo Engineering Ltd.

Yasuhiro Tateishi

Yoichi Shimoi

Takeshi Kinomoto

Ryoh Izumi

Ryuichi Kano

Kensaku Ito

Genji Ono

[Object] To provide a rolling apparatus that enables an operator to recognize the rolling status such as the behavior of the steel sheet entering the rolling stand and enables a stable rolling process. [Solution] A rolling apparatusincludes a plurality of rolling standseach including a pair of rolling mills, and an imaging unitprovided between adjacent rolling standsA andB, the imaging unitbeing configured to image a steel sheetentering a pair of rolling millsB of the rolling standB from an upstream side of the rolling standA located on a downstream side in a rolling direction. The imaging unitis disposed so as to satisfy the following equation (1), on the upstream side in the rolling direction Z of the rolling standB, in a central portion in the width direction of the steel sheet in an area P in which the steel sheetis able to be conveyed:2&#xd7;&#xd7;tan(&#x3b1;/2)&#x3e;&#x2003;&#x2003;(1)wherein L represents a distance in the rolling direction between the rolling standB located on the downstream side in the rolling direction and the imaging unit, &#x3b1; represents a horizontal viewing angle of the imaging unit, and Wrepresents a maximum width of the steel sheet

Rolling apparatus and rolling monitoring method

A separation apparatus using a membrane for diafiltration, which provides precise fractionation of a target substance by monitoring and regulating permeability of the target substance based on measurement values and analytical values indicating separation status, such as physical values and concentration of a permeate liquid, a circulating liquid and an internal circulating liquid in a membrane device. A diafiltration process including adding a cleaning liquid to an treating liquid which contains multiple target substances and extracting a target substance into the permeate liquid supplied from a membrane separation apparatus to fractionate the target substance from other target substances remaining in a residual liquid. In the present invention, permeability of the target substance is controlled by regulating or controlling at least one operating parameter, such as a flow rate of the permeate liquid, operating pressure and temperature of the membrane separation apparatus, and concentration and amount of a circulating liquid, to a predetermined range based on a separation status index and/or a progress index of a separating operation.

Method of isolating target substance using membrane and apparatus therefor

A method for separating an objective component from a crude material in a time lagged multi-stage counter flow system, comprising: (a) contacting the crude material with a washing liquid or an extracting reagent in a semi-batch system to form a mixture of the crude material and the washing liquid or extracting reagent; (b) separating the mixture into a recovered liquid containing the objective component and a residue, with the proviso that the mixture is not separated with a separation membrane that is connected to a tank containing the crude material; and repeating (a) and (b) at least once, wherein the concentration of the objective component is successively lower in the washing liquid or extracting reagent contacted with the crude material in each (a).

Method for separating objective component

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Tokyo, Japan

Yasuhiro Tateishi