摘要 |
<p>A method of producing solid molding products from a slurry which has done absorption in wet limestone-gypsum desulfurization of flue gas, comprising the steps of concentrating a gypsum-containing absorption slurry drawn from a wet limestone-gypsum desulfurization apparatus, mixing and kneading the solid concentrated slurry with flyash from a coal-fired combustion source and also with either quicklime or slaked lime, molding the mixture into a given shape using a mold, and then curing a resulting molding in a reaction chamber through which a part of desulfurized gas is passed. A method of producing solid molding products from a by-product of wet limestone-gypsum desulfurization of flue gas comprising the steps of concentrating an absorption slurry drawn from a wet limestone-gypsum desulfurization apparatus, kneading the concentrated slurry which consists mostly of gypsum with flyash and either quicklime or slaked lime and molding the mixture to given shapes, and then solidifying a molded product by drying with water-unsaturated hot air produced with heat recovered from the flue gas. A by-product from the desulfurization of flue gas is converted into products that can be used as building materials. <IMAGE></p> |
申请人 |
MITSUBISHI JUKOGYO K.K., TOKIO/TOKYO, JP |
发明人 |
UKAWA, NAOHIKO, C/O HIROSHIMA RESEARCH & DEV. CTR., NISHI-KU, HIROSHIMA-SHI, HIROSHIMA-KEN, JP;FUJITA, HIROSHI, C/O HIROSHIMA RESEARCH & DEV. CTR, NISHI-KU, HIROSHIMA-SHI, HIROSHIMA-KEN, JP;TAKASHINA, TORU, C/O HIROSHIMA RESEARCH & DEV.CTR, NISHI-KU, HIROSHIMA-SHI, HIROSHIMA-KEN, JP;ONIZUKA, MASAKAZU, C/O HIROSHIMA RES. & DEV.CTR, NISHI-KU, HIROSHIMA-SHI, HIROSHIMA-KEN, JP;TATANI, ATSUSHI, C/O HIROSHIMA RES. & DEV. CTR, NISHI-KU, HIROSHIMA-SHI, HIROSHIMA-KEN, JP;INOUE, KENJI, C/O HIROSHIMA RES. & DEV. CT, NISHI-KU, HIROSHIMA-SHI, HIROSHIMA-KEN, JP;OHISHI, TSUYOSHI, C/O MITSUBISHI JUKOGYO K.K., CHIYODA-KU, TOKYO, JP |