Terumo Kabushiki Kaisha

Primetals Technologies Japan, Ltd.

Mitsubishi Heavy Industries Limited

Mitsubishi-hitachi Metals Machinery, Inc.

Mitsubishi Jukogyo Kabushiki Kaisha

Eneos Corporation

Preferred Networks, Inc.

Masashi Yoshikawa

Masahiro Yamada

Takashi Yonekura

Hironori Fujioka

Ryusuke Nakatsuka

Kosei Tsuji

Hiromi Deguchi

Masao Tambara

Takuya Hirata

Takanori Nagai

Shinji Nanba

Hideo Hata

Takahiro Yagi

Susumu Okino

Takashi Nakano

Tsuyoshi Oishi

Toru Takashina

Shintaro Honjo

Toyoaki Yasui

Kazuo Morimoto

Kazutoshi Yokoo

Tetsuya Arioka

Kyuta Sagae

Tomoaki Takeda

Yu Yoshimura

Kazunari Tanaka

Nobukazu Tanokura

Hiroshi Mochizuki

Naohiko Matsuda

Keiji Mizuta

Shinya Kanemori

Ritsuo Hashimoto

Koichi Mizushita

Akira Sako

Akira Kaya

Fumiaki Inaba

Shigenari Horie

Kenichi Okada

Takayuki Kido

Masahiro Sakai

Tatsuya Hirano

Toru Takeguchi

Shinichiro Kuroda

Toshiya Komuro

Akira Kinoshita

Ryusuke Kimoto

Ryuichi Matsubara

Shinji Namba

Shinsaku Kimura

Taichiro Hirai

Hiroyuki Mizuma

Keisuke Nakata

Takuro Moriyama

Yuki Maehashi

Hideaki Takatani

Hiroyuki Hino

Tsutomu Ogasawara

Yo Iida

Kaizaburo Kido

Keisuke Yahata

Keigo Kawamura

Kazuki Yoshida

Kazuki Uehara

Kosei Kanuma

Masao Tanbara

Noriaki Hirano

Syuji Maniwa

Jyun Sakamoto

Shinji Hirai

Jyunsou Fukumori

Osamu Fukushige

A control system includes at least one processor and at least one memory. The at least one processor is configured to determine operation data by repeating a process of calculating control target data indicating a predicted value of a control target in a plant and the operation data indicating an operation value of a control device of the plant by a given calculation model based on observation data indicating an actual value of the plant.

Control system, control method, and control program for determining operation data by repeatedly calculating control target data indicating a predicted value of a control target in a plant

A pickling apparatus for pickling a strip of metal being conveyed is equipped with: a pickling tank for storing an acid solution; a surrounding part disposed in the pickling tank so as to surround the strip immersed in the acid solution in the pickling tank; and an oxidant supply part for supplying a liquid oxidant toward an inside of the surrounding part.

Pickling apparatus and pickling method

An acid solution preparation device is an acid solution preparation device for preparing an acid solution used for pickling of a steel plate, the device including a sealed tank for storing the acid solution, a gas supply part for supplying an oxygen-containing gas from outside of the sealed tank to the sealed tank, and a purge part for discharging a gas in the sealed tank to the outside.

Acid solution preparation device, acid solution supply apparatus, and pickling facility

A method for pickling a steel plate having a first steel plate portion and a second steel plate portion which is connected to a tail end of the first steel plate portion and which requires a longer time for pickling than the first steel plate portion when pickled under the same condition includes: a step of pickling the steel plate by immersing the steel plate in an acid solution in at least one pickling tank while conveying the steel plate; a step of circulating the acid solution, through a circulation line connected to any of the at least one pickling tank, between the pickling tank and an oxidizing device disposed in the circulation line; a step of oxidizing Fein the acid solution to Feby the oxidizing device using a gaseous oxidant; and a feeding start step of, upon switching from pickling of the first steel plate portion to pickling of the second steel plate portion, starting feeding of a liquid oxidant for oxidizing Fein the acid solution to Feto any of the at least one pickling tank or to the circulation line.

Method for pickling steel plate and pickling apparatus

A pickling facility includes: a pickling tank for storing an acid solution; a conveyance part for continuously conveying a steel plate immersed in the acid solution; a measurement part for measuring at least one parameter which has a correlation with a heat transfer coefficient between the acid solution and a reference surface disposed in the acid solution so as to face the steel plate; and a conveyance speed decision part configured to decide a conveyance speed of the steel plate conveyed by the conveyance part, on the basis of a measurement result of the at least one parameter.

Pickling facility and operation method of pickling facility

A crossbow correction devicefor correcting crossbow of a steel strip S by a magnetic force during conveyance includes a plurality of electromagnetstotoarranged in a strip width direction of the steel strip S and facing each other so as to sandwich the steel strip S in a strip thickness direction, a moving mechanismtotocapable of moving the electromagnetstotorelative to the steel strip S, and a controllerconfigured to operate the moving mechanismtoto, based on a current value flowing through the electromagnetstoto

Crossbow correction device, molten metal plating facility, and crossbow correction method

A cooling device for a metal plate includes a plurality of first nozzles and a plurality of second nozzles disposed on both sides of the metal plate, respectively, in a thickness direction of the metal plate across a pass line of the metal plate. The plurality of first nozzles form a staggered array in which a pitch in a width direction of the metal plate is Xn, a pitch in a longitudinal direction of the metal plate is Yn, and an offset amount in the width direction of a pair of first nozzles disposed adjacent to each other in the longitudinal direction is &#x394;Xn. The plurality of second nozzles form a staggered array in which a pitch in the width direction is Xn, a pitch in the longitudinal direction is Yn, and an offset amount in the width direction of a pair of second nozzles disposed adjacent to each other in the longitudinal direction is &#x394;Xn. The staggered array of the first nozzles and the staggered array of the second nozzles are disposed offset from each other such that, a center of the second nozzle is at a position offset by a shift amount S from a center of the first nozzle in the width direction, and the center of the second nozzle is positioned in a region defined by an oval having a semi-axis of &#x394;Xn/4 in the width direction and a semi-axis of Yn/3 in the longitudinal direction. The shift amount S is expressed by S=m&#xd7;&#x394;Xn/2, where m is an odd number such that S is closest to Xn/2.

Cooling apparatus for metal strip and continuous heat treatment facility for metal strip

When a portion for measuring the plating adhesion amount reaches an upstream side position, plating adhesion amount estimation values are calculated by using a plating adhesion amount estimation expression at positions away from a position that faces the distance sensors, that is, the upstream side position, by strip-width direction distances, of the surfaces of the steel strip. When the portion for measuring the plating adhesion amount reaches a downstream side position, the strip-width direction distances of the plating adhesion amount meters are matched to the strip-width direction distances, and the plating adhesion amount actual measurement values are obtained. The plating adhesion amount estimation expression is corrected on the basis of the differences between the plating adhesion amount estimation values and the plating adhesion amount actual measurement values. Accordingly, the control accuracy of the plating adhesion amount is improved.

Plating adhesion amount control mechanism and method for controlling an adhesion amount by comparing a plating adhesion amount estimation value at an upstream position and a plating adhesion actual amount at a downstream position

Provided are a molten metal plating facility and a method with which degradation in the surface quality of a strip can be prevented by preventing the adhesion of splashes. In a molten metal plating facility and a method for plating a strip (S) with molten metal by guiding the strip (S) into a molten metal bath (Mm) and then guiding the strip (S) upward, a pair of wiping nozzles () disposed so as to face a front surface side and a back surface side of the strip (S) guided upward is used to discharge air streams (Ea, Eb) toward a collision point (A) inside the strip (S) such that the first air streams spread out in a strip width direction of the strip (S), and a pair of outer nozzles () disposed so as to face a front surface side and a back surface side of an extended plane on an outer side of the strip (S) with respect to the strip width direction, above the wiping nozzles () and on each of both outer sides of the strip (S) with respect to the strip width direction is used to discharge air streams (Fa, Fb) toward a collision point (B) within the extended plane and below the collision point (A).

Molten metal plating facility and method

The present invention reduces the amount of gas consumed, edge-overcoating and splashing and adjusts plating thickness with high precision by providing a wiping nozzle with: thin plates, which are each inserted into a lip from the entrances to the lip for a specified distance to the inside of the two ends of the lip in the sheet width direction in order to seal the gas jet where the thin plates are inserted, and which are movable in the sheet width direction of the lip; and ropes extending in the sheet width direction of the lip so as to track the movements of the thin plates and seal the gas jet in a specified range.

Wiping nozzle of hot-dip metal plating equipment and wiping position control device for hot-dip metal plating equipment

A gas cooler () which is provided with a heat exchanger (), cools a gas to be cooled, which is introduced from the outside, by performing heat exchange between the gas to be cooled and the heat exchanger, and discharges the cooled gas to the outside. The heat exchanger includes: a plurality of heat transfer fins () which are placed side by side via a prescribed gap therebetween, the gas to be cooled flowing through the gaps; and heat transfer tubes () which pierce through the plurality of heat transfer fins and are provided in a plurality of rows along the direction in which the gas to be cooled flows. The outside diameter dof the heat transfer tubes is 20 to 30 mm.

Gas cooler

In a gas wiping apparatus for blowing a gas on the front side and the back side of a strip, which exits from a hot-dip plating bath and travels upward, from wiping nozzles to adjust the amount of a plating deposit, the wiping nozzles are supported to be linearly movable beyond the width of the nozzles in the plate width direction of the strip.

Gas wiping apparatus

In a gas wiping apparatus which blows gas through a wiping nozzle onto front and rear surfaces of a steel plate going out from a molten metal coating pot and running upward and which thereby controls a deposit mass, the wiping nozzle is separated into upper and lower lips, blocking faces partially closing a gas supply channel are formed in the upper and lower lips at vertically different positions on the opposite sides from each other in a gas outlet width direction, and the upper and lower lips are provided in such a manner as to be movable in a width direction of the steel plate.

A liquid wiping apparatus that can eliminate the increase in the thickness of membranous liquid and defects in the surface quality resulting from the attachment of splash onto the surface of a metallic strip and can improve the productivity in a manner of accelerating the line speed is provided. The liquid wiping apparatus includes blade wipers for contacting with a molten metal having been attached onto the metallic stripto mechanically wipe the molten metal. In the liquid wiping apparatus, a pressure applying unitof the static pressure pad type using gas is installed at the outlet side of the blade wiperin the strip running direction, and phase-mixed flow of gas/liquidis produced in membranous liquid running between the blade wiperand the strip

Liquid wiping apparatus

A liquid column type exhaust gas treatment apparatus comprising a spray header () for injecting an absorbing solution upward in an absorption tower (), wherein exhaust gas introduced from a lower part of the absorption tower () and the absorbing solution injected from the spray header () are brought into gas-liquid contact with each other, by which desulfurization of exhaust gas is accomplished, characterized in that drift preventing plates (and) are provided in a liquid top portion of a liquid column () formed by the absorbing solution and/or at the installation position of the spray header ().

Exhaust gas treatment apparatus

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Tokyo, Japan

Masashi Yoshikawa