Mitsubishi Kasei Corporation

Mitsubishi Chemical Industries Limited

Takahisa Fukao

Yoshihiro Omae

Masaaki Mita

Katashi Shioda

Seiji Sudoh

Kunio Ishikawa

Takashi Komoda

Katsushige Yoshida

A hydrophilic drying liquid such as isopropyl alcohol is evaporated and supplied to an object to be dried such as an electronic component. As the drying liquid is condensed on the surface of the object and flows down together with water adhering to the object, the object is dried. Water contained in the condensate is removed by means of a membrane-type separator disposed in the liquid or vapor of the drying liquid. A rise in the water concentration in the drying liquid is prevented so as to maintain high drying efficiency.

Vapor drier

A method for producing a high-purity silica glass powder by calcining a high purity silica gel powder, wherein a vertical-type moving bed apparatus equipped with a heating means is used in a moving bed system such that the feed silica gel powder is continuously supplied from an upper portion of the apparatus and discharged from a lower portion of the apparatus, and wherein a small amount of gas is blown to flow from a lower portion of the moving bed towards an upper portion of the moving bed, and the calcination is conducted at a temperature of from 1,000.degree. to 1,300.degree. C.

Method for producing a high-purity silica glass powder

A method and apparatus for observing and/or repairing damages on a wall of a coke oven or combustion chamber is disclosed. The damages on the wall are detected by positioning a heat resisting lance which includes an optical system for observing an image on the wall and conduit having a nozzle for spraying repairing materials onto damaged areas on the wall in the inside of the coke oven and moving the lance horizontally and vertically within the coke oven along its wall while observing the image on the wall at an outside of the coke oven through the optical system. When the damages are detected, the damages are repaired by spraying the repairing material onto the damaged area on the wall from the nozzle.

Method and apparatus for repairing a wall of coke oven

Growing community of inventors

Kitakyushu, Japan

Takahisa Fukao