Kuyamba kwa gypsum (ⅱ)

October 21, 2024

Gypsum ufa ndi imodzi mwazinthu zazikulu zisanu zowoneka bwino ndipo zimagwira ntchito yofunika kwambiri padziko lonse lapansi. Amagwiritsidwa ntchito kwambiri pamapulogalamu ambiri monga zomangamanga, zomangira, nkhungu, zamakampani ndi zaulimi, mankhwala ndi kukongola kwa mafakitale. Kusiyana pakati pa gypsum ufa ndi gypsum ufa wamabodza. ufa wa gypsuuring gypsum umakhalanso ndi silicon dioxide, calcium carbonate, magnesium chloride, ndi tinthu tating'onoting'ono, zokhazikika zokhudzana ndi zosayera zoyipa, komanso chiyero chachikulu.

Mayiko opanga mafakitale athetsa mavuto aukadaulo monga madyerero, kuyanika, kusintha, ndi kugwiritsa ntchito gypsum gypsum. Makampani ogulitsa GypsAm akutengera gypsulamu yayikulu pamlingo waukulu, ndipo ukadaulo wogwiritsa ntchitoyo ndiwokhwima. Japan ndi dziko loyamba la dziko lapansi kuti lisagwiritse zida za desulfuriza pamlingo waukulu, limatulutsa pafupifupi matani gypsulamu chaka chilichonse. Mtundu wa FGD ndiwokwera ndipo kugwiritsa ntchito bwino ndiye bwino kwambiri, ndipo pafupifupi 97,5%. Mu 1977, kugwiritsa ntchito kumafikira matani 2.145 miliyoni, pafupifupi zonse zomwe zimagwiritsidwa ntchito popanga ma board a gypsum. M'zaka zaposachedwa, ntchentche phulusa ndi FGD zakhala zikugwiritsidwa ntchito, ndipo laimu yochepa yawonjezedwa kuti "poanaote" phula lonyowa ufa ndi mapiri a phulusa lamphamvu ngati cholowa m'malo mwa mchenga. Germany ili ndi ukadaulo wapamwamba kwambiri komanso wambiri kwambiri wa FGD, zomwe zimagwiritsidwa ntchito mokwanira. Zimamanga mafakitale opanga kuti apange mabatani a gypsum, ndipo imagwiritsidwanso ntchito ngati zinthu zosefera komanso zokutira kuti zisinthe katswirina ndi calcite mu pepala. United States idapangidwa mwachangu pambuyo pa zaka za m'ma 1970, ndikupanga matani 9 miliyoni mu 2000. Pakadali pano, zimagwiritsidwa ntchito makamaka ndi gypsum.

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Mr. James Jing

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