Title:
SOLID/LIQUID SEPARATION APPARATUS, AND METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2015/015631
Kind Code:
A1
Abstract:
Provided is a solid/liquid separation apparatus utilizing a cycle of changes in state of a substance (A) that can dissolve water and oil, wherein the solid/liquid separation apparatus has reduced frequency of maintenance, and allows the charged amount of substance (A) within cycles to be easily controlled. This solid/liquid separation apparatus, employing a substance (A) that can dissolve water and oil, brings the substance (A) while in the liquid state into contact with a treated material composed of a mixture of water and a solid, oil and a solid, or water, oil, and a solid, and then brings about dewatering and deoiling of the treated material by vaporizing the substance (A), and is characterized by being provided with: a substance (B) that circulates while giving rise to changes in state within a closed system; a compressor for compressing the substance (B); a first heat exchanger for exchange of condensation heat of the substance (B) and vaporization heat of the substance (A); an expansion valve for depressurizing the condensed substance (B); a second heat exchanger for exchange of vaporization heat of the substance (B) and condensation heat of the substance (A); a treatment tank for condensing the vaporized substance (A) in the second heat exchanger while separating water or oil in the first heat exchanger, and mixing the liquid substance (A) with the treated material; and a pump situated on the pipeline in which the liquid substance (A) is present.
Inventors:
SANO TADASHI (JP)
SEKIYA SACHIO (JP)
SEKIYA SACHIO (JP)
Application Number:
PCT/JP2013/070962
Publication Date:
February 05, 2015
Filing Date:
August 02, 2013
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B01D12/00; B01D11/02; B01D15/00; B01J20/34; C02F11/00; C02F11/13; C02F11/15; C02F11/147
Domestic Patent References:
| WO2009022726A1 | 2009-02-19 |
Foreign References:
| JPH05115857A | 1993-05-14 | |||
| JP2011031170A | 2011-02-17 |
Other References:
KAZUYUKI OSHITA ET AL.: "Sewage Sludge Dewatering Process Using Liquefied Dimethyl Ether as Solid Fuel", DRYING TECHNOLOGY, vol. 29, 2011, pages 624 - 632
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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