Mitsubishi Jukogyo Kabushiki Kaisha

Churyo Engineering Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

Chiyoda-ku

Yasuhiro Tsubaki

Toshio Hattori

Haruo Hagiwara

Hideo Tsukamoto

Atsushi Ueda

Shoichi Hayashi

Kazuo Kitajima

Kenichi Yagami

Shuji Yamada

Nobuharu Takagi

Kiyomi Yamada

Hidetoshi Ishihara

Masahiro Bessho

Hiroyuki Takagawa

Yoshio Miyairi

Takayoshi Hamada

Ishihara Hidetoshi

The present invention is an organic halogen compound decomposition device which utilizes a plasma, wherein a stable and reliable ignition at operation commencement is possible, and where following ignition, a good plasma form can be maintained and stable operation is possible. The organic halogen compound decomposition device is equipped with a cylindrical waveguide made up of an outer conductor and an inner conductor , and a dual construction discharge tube made up of an inner tube and an outer tube which is provided inside the cylindrical waveguide and on an identical axis. Furthermore, a probe antenna formed from an extension of the inner conductor is positioned so as to encircle the discharge tube , and the tip of the inner tube is positioned further inwards than the tip of the probe antenna

Organic halogen compound decomposing device and operation control method therefor, and organic halogen compound decomposing method

A product gas generated through the decomposition reaction of organohalogen compounds and steam is neutralized with an alkali solution and is left to stand for a predetermined period of time, while a neutralization product generated in this neutralization reaction is caused to precipitate in the alkali solution and is then removed. In order to remove the neutralization product completely, a takeout tube is disposed to plunge into a waste gas processing tank and a disk-shaped plate is fastened at the distal end of the takeout tube in parallel to the bottom surface of the waste gas processing tank , while the takeout tube opens in the lower surface of the plate at the center thereof. Thus the solid-liquid separation efficiency of the neutralization product and the alkali solution is improved and the quantity of alkali solution remaining in the neutralization product that is disposed of as waste is decreased.

Method for decomposition-treating organic halogen compound and decomposing device

In a dry cleaner, after clothes 2 is washed, the washing solvent contained in the washed clothes 2 is dissolved into a liquid perfluorocarbon 4a being heated at its boiling point or thereabout in order to remove the washing solvent. Thereafter, drying of the clothes 2 is performed by mainly aiming to evaporate the liquid perfluorocarbon 4a contained in the clothes 2. Since the drying is targeted on the liquid perfluorocarbon, the time required for drying clothes can markedly reduced.

Apparatus for washing and drying clothes

Method of washing and drying clothes

A drum type washing apparatus and a method of processing the wash using the drum type washing apparatus wherein they have a characterizing feature which consists in that the peripheral wall of a rotary drum made of a perforated plate is configured in the form of a wall having a single corrugated portion or a plurality of corrugated portions which do not intersect the direction of centrifugal force generated by rotation of the rotary drum at right angles. Further, they have other characterizing features which consist in that the apparatus is provided with a liquid injecting nozzle and/or a gas blowing nozzle and/or a hot air blowing nozzle for allowing liquid and/or gas and/or hot air to be injected and/or blown into the interior of the rotary drum whereby a period of time required for performing steps of washing, dewatering and drying the wash in the rotary drum can be shortened. Moreover, they have another characterizing feature which consists in that the rotary drum is rotated and air is blown into the interior of the rotary drum while a door is kept opened so that the wash can be discharged from the rotary drum at a high efficiency under the influence of force generated by flowing of the air.

Drum type washing apparatus and method of processing the wash using said

The present invention is directed to a technique which comprises the steps of stopping the rotation of a treating drum in a deodorizing step, introducing the outside air into a treating tank through an upper opening provided in the upper portion of the treating tank or the upper portion of a recovery air duct, simultaneously exhausting a solvent gas from the treating tank through a lower opening provided in the lower portion of the treating tank or a button trap portion so slowly as not to agitate the solvent gas in the treating tank by an exhaust means connected to a solvent recovery device in the condition that the treating drum is stopped, in order to replace the solvent gas in the treating tank with the outside air, and reusing the solvent gas through the solvent recovery device once or several times. In addition, the present invention is further directed to an improvement of the above-mentioned technique. According to the above-mentioned technique of the present invention, a gas throughput which is required to recover a certain amount of the solvent in the treating tank can be noticeably miniaturized and hence it can be manufactured at a lower cost, as compared with conventional ones, and air pollution and the breakage of ozone layer can be prevented. Moreover, the solvent can be saved owing to its recovery and reuse, and occupation space for the solvent recovery device can be also saved.

Method for dry cleaning as well as a method for recovery of solvent

Method and apparatus for dry cleaning as well as method and device for

The present invention is directed to a technique which comprises the steps of stopping the rotation of a treating durm in a deodorizing step, introducing the outside air into a treating tank through an upper opening provided in the upper portion of the treating tank or the upper portion of a recovery air duct, simultaneously exhausting a solvent gas from the treating tank through a lower opening provided in the lower portion of the treating tank or a button trap portion so slowly as not to agitate the solvent gas in the treating tank by an exhaust means connected to a solvent recovery device in the condition that the treating drum is stopped, in order to replace the solvent gas in the treating tank with the outside air, and reusing the solvent gas through the solvent recovery device once or several times. In addition, the present invention is further directed to an improvement of the above-mentioned technique. According to the above-mentioned technique of the present invention, a gas throughput which is required to recover a certain amount of the solvent in the treating tank can be noticeably miniaturized and hence it can be manufactured at a lower cost, as compared with conventional ones, and air pollution and the breakage of ozone layer can be prevented. Moreover, the solvent can be saved owing to its recovery and reuse, and occupation space for the solvent recovery device can be also saved.

The present invention relates to a dry cleaning method in which tanks for exclusively receiving at least two kinds of solvents which are soluble in each other are provided. One treating tank and a fractionating device for recovering the two or more kinds of solvents by fractonal distillation are provided. Exclusive filters for the respective solvents are provided through the use of, a common filter or a multi-filter device composed of both the filters which is disposed between the tanks and the treating tank. The two or more kinds of solvents are used independently so that washing is carried out. Further, the present disclosure relates to a dry cleaning method in which in a dry cleaner using organic solvents such as perchloroethylene, 1,1,1-trichloroethane, turpentine (oil series) and the like, the previously use solvent is replaced with another solvent which is soluble therein and has a lower boiling point, for exmple, Flon 113 or 11, during washing or immediately before drying in order to thereby shorten a drying period of time. According to this disclosure, the most proper washing method can be chosen for the greater part of materials, processings and forms of clothes, and troubles due to the wasing of the clothes can be reduced remarkably. Further, the disclosed apparatus and method can advantageously save occupation space, equipment cost, volume of facilities, maintenace cost and the like. In addition thereto, a drying time can be reduced by half.

Dry cleaning method using at least two kinds of solvents

The present invention relates to a dry cleaning apparatus in which a main portion of a dry cleaner comprises tanks for exclusively receiving at least two kinds of solvents which are soluble in each other, one treating tank and a fractionating device for recovering the two or more kinds of solvents by batch distillation, exclusive filters for the respective solvents comprising, a common filter or a multi-filter device composed of both the filters, and the two or more kinds of solvents are used independently so that washing is carried out.

Growing community of inventors

Nagoya, Japan

Yasuhiro Tsubaki