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公开(公告)号：CS126390A2
公开(公告)日：1991-08-13
申请号：CS126390
申请日：1990-03-15
Applicant: TAMPELLA OY AB
Inventor： AHONEN HEIKKI , KENAKKALA TIMO , KOKKONEN PERTTI
Abstract: A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection with the desulphuration of flue gases. To avoid the disadvantageous effects of calcium sulphite and entringite reactions and to increase the used amount of fly ash containing desulphuration waste, the calcium sulphite is oxidized by hydrogen peroxide either before the production of cement or concrete or during the production.
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公开(公告)号：FI81558B
公开(公告)日：1990-07-31
申请号：FI891284
申请日：1989-03-17
Applicant: TAMPELLA OY AB
Inventor： AHONEN HEIKKI , KENAKKALA TIMO , KOKKONEN PERTTI
Abstract: A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection with the desulphuration of flue gases. To avoid the disadvantageous effects of calcium sulphite and entringite reactions and to increase the used amount of fly ash containing desulphuration waste, the calcium sulphite is oxidized by hydrogen peroxide either before the production of cement or concrete or during the production.
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53.发明专利
公开(公告)号：HUT51927A
公开(公告)日：1990-06-28
申请号：HU231288
申请日：1988-05-06
Applicant: TAMPELLA OY AB
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公开(公告)号：FI81024B
公开(公告)日：1990-05-31
申请号：FI872072
申请日：1987-05-11
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , HEIKKILAE MATTI , LAINE JOUKO , KOKKONEN KARI , KENAKKALA TIMO
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公开(公告)号：DD270015A5
公开(公告)日：1989-07-19
申请号：DD31567688
申请日：1988-05-11
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , HEIKKILAE MATTI , LAINE JOUKO , KOKKONEN KARI , KENAKKALA TIMO
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Patent Agency Ranking56.发明专利
公开(公告)号：GB2174081B
公开(公告)日：1988-11-23
申请号：GB8527453
申请日：1985-11-07
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAEKI MARTTI
Abstract: The invention relates to a process and apparatus for causing the sulfur dioxide of flue gases to react to form solid sulfates and sulfites which can be separated from the flue gases. Sulfur dioxide containing flue gases (16) are directed according to the invention into one end of an oblong reaction zone (4), in addition to which pulverous calcium compounds and water are directed separately into the reaction zone at several points, and finally from the opposite end a flue gas suspension is withdrawn and directed to dust separation (5). By feeding the pulverous reagent and the water separately into the reactor 4, the problems involved in the preparing, handling and spraying of an aqueous slurry are avoided, in addition to which the retention time and the reaction conditions can be regulated easily in the oblong reactor 4.
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公开(公告)号：FI872072A
公开(公告)日：1988-11-12
申请号：FI872072
申请日：1987-05-11
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , HEIKKILAE MATTI , LAINE JOUKO , KOKKONEN KARI , KENAKKALA TIMO
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公开(公告)号：FI872061A
公开(公告)日：1988-11-12
申请号：FI872061
申请日：1987-05-11
Applicant: TAMPELLA OY AB
Inventor： LAINE JOUKO , HAEMAELAE SIRPA , JAERVINEN KIMMO , KENAKKALA TIMO
IPC: B01D20060101 , B01D53/34 , B01D
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公开(公告)号：IT1185834B
公开(公告)日：1987-11-18
申请号：IT6794485
申请日：1985-11-08
Applicant: TAMPELLA OY AB
Inventor： HAMALA SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAKI MARTTI
Abstract: The invention relates to a process and apparatus for causing the sulfur dioxide of flue gases to react to form solid sulfates and sulfites which can be separated from the flue gases. Sulfur dioxide containing flue gases (16) are directed according to the invention into one end of an oblong reaction zone (4), in addition to which pulverous calcium compounds and water are directed separately into the reaction zone at several points, and finally from the opposite end a flue gas suspension is withdrawn and directed to dust separation (5). By feeding the pulverous reagent and the water separately into the reactor 4, the problems involved in the preparing, handling and spraying of an aqueous slurry are avoided, in addition to which the retention time and the reaction conditions can be regulated easily in the oblong reactor 4.
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公开(公告)号：FI872072A0
公开(公告)日：1987-05-11
申请号：FI872072
申请日：1987-05-11
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , HEIKKILAE MATTI , LAINE JOUKO , KOKKONEN KARI , KENAKKALA TIMO
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