| 摘要 |
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. |
