Hitachi Zosen Corporation

Tsubakimoto Chain Company

Shiro Inoue

Kazunori Koba

Shoichi Momose

Hidetaka Sawada

Suguru Fujita

Hiroki Ishida

Shunji Sakura

Takayuki Morimoto

Takashi Hirano

Yoshinobu Takaki

Masahiro Kurokawa

Masayuki Isaka

Hideo Suematsu

The present invention is to provide a VP dewatering method being applicable over a wide range, having good handling properties, and being economically efficient and highly energy-saving, which comprises compression-pressuring a dewatered vapor product to elevate a condensation temperature thereof and then re-using the same as a heat source for vaporizing a supply liquid. In dewatering a water-containing organic substance which is a liquid starting material according to a vapor permeation membrane separation method, a dewatered organic substance vapor discharged from a membrane module is pressurized with a compressor to elevate the condensation temperature of the vapor and then the vapor is fed to a vaporizer of said method to collect and use the latent heat of condensation thereof.

Method for dewatering water-containing organic substance

To provide a compact lifter device, which can attain a work-piece's lifting/lowering operation in a stable supporting state and can reduce the parts number and an assembly load. A lifter devicein which a pair of work-piece lifting chainsrespectively fed movably forward and backward by a pair of regularly/reversely rotatable driving sprocketswhile being sandwiched by the sprockets includes flexing suppression membersdisposed oppositely to each other, and each of these flexing suppression memberscomprises a number of blocksdisposed at mounting intervals of two times the chain pitch P on a drawing side of the work-piece lifting/lowering chainand a lifting/lowering support barof a length corresponding to a chain's upright state, disposed on a feeding side continued to the drawing side of the work-piece lifting/lowering chainso that the flexing suppression membersare engaged with each other to lift or lower a work-piece in a chain's upright state of the fed chain.

Lifter device

This invention provides a compact effluent water reclamation apparatus which is minimized in the kinds and amounts of chemicals to be used for the recovery of water to thereby reduce the amount of waste and eliminate equipment which necessitates a large area for installation. The effluent water reclamation apparatus comprises a reverse osmosis device and is adapted to treat acid-alkali effluent water containing organic matter but no fluorine, by concentrating the acid-alkali effluent water containing organic matter by reverse osmosis, evaporating the resulting concentrated water to dryness and collecting the water permeating through a reverse osmosis membrane. The apparatus is characterized in that the apparatus comprises as arranged upstream from the reverse osmosis device a neutralizing device for neutralizing the effluent water to prevent a scale component from separating out from the effluent water in the process of reverse osmosis, and a biological treatment tank for biologically treating the neutralized effluent water.

System for recovering and treating waste water

For each control period, a position of each elevator of a plurality of elevating devices is calculated, the farthest elevator from a designated movement destination position is determined as a reference elevator based on the position of each elevator thus calculated, position deviations of other elevators are calculated with respect to a position of the reference elevator, actuators of the elevators other than the reference elevator which have the position deviations outside a predetermined range are off controlled, and actuators of the elevator having the position deviation within the predetermined range and the reference elevator are on controlled.

Elevating system control method and apparatus synchronizing plural elevating devices

The present invention provides an apparatus for manufacturing ultra-pure water, characterized in that a decarbonator/degassor and a reverse osmosis equipment for pretreatment of supply water are installed in the upper stream of a multiple effect evaporator. The present invention also provides a method for manufacturing ultra-pure water, characterized in that most of the carbonic groups dissolved in the supply water is degassed by a decarbonating/degassing treatment prior to introducing the water to the multiple effect evaporator, and that most of the scale components such as Ca.sup.++, SO.sub.4.sup.-- and Mg.sup.++ are also eliminated by a reverse osmosis treatment.

Apparatus for manufacturing ultra-pure water

A degreasing-cleaning method which employs as a liquid cleaning agent pure water having a resistivity of at least 10 megohm-cm and a temperature of at least 50.degree. C. The pure water is sprayed onto the article to be cleaned at a pressure of at least 8 kg/cm.sup.2.

Growing community of inventors

Osaka, Japan

Shiro Inoue