Zvinhu zvisina kugadzirwa Aluminium trihydrate inocheneswa kubva ku bauxite. Nzvimbo dzekutengesa dze bauxite (30-75% Al2O3) dzinowanikwa muAustralia, Jamaica, France, Guyana, Guinea, USA neBrazil. Bauxite ore inonyungudutswa mu caustic soda yakasimba kuti igadzire sodium aluminate. Aluminium trihydrate inobva yanyungudutswa nekusashanda zvakanaka (kazhinji necarbon dioxide) kana ne autoprecipitation (Bayer process). Imwe mhando, sulfuric acid, inogadzirwa kuti igadzire superphosphate kuFarmers Fertiliser Ltd. Acid inosvika ne road tanker uye inopombwa mumatangi ekuchengetera.
Danho 1 - Kugadzirisa zvinhu zvisina kugadzirwa. Aruminiyamu trihydrate inotakurwa yochengetwa mumabhegi etani imwe chete. Bhegi rega rega rinotakurwa nechikwidzo kuenda kufeed hopper, uko rinovhurwa roendeswa kutangi rereaction. Mvura yereaction, trihydrate uye sulfuric acid batch zvinokurunga kwenguva yakati nemhepo inobuda nemudura.
Danho rechipiri - Kugadzira chigadzirwa chekupedzisira Mushure menguva yekuita response, ingava mvura kana solid alum yagadzirwa. Kana iri mvura, boka rayo rakasanganiswa rinoiswa mutangi rekusanganiswa rakazadzwa nemvura yekusanganiswa kwainotonhorera nekufamba kwenguva. Liquid alum inozosefa uye inopombwa kuti ichengetwe. Kune nzvimbo dzekuisa zvinhu pamusoro paMorrinsville uko makemikari akawanda emvura anowanikwa mumatangi ekutumira matangi emumugwagwa. Kana yakasimba yakagadzirwa, iyo yakaomeswa inoiswa mumapani ekukanda mvura kwainogadzika, ichibatsirwa nekutonhodza kwefeni. Mapani acho anosimudzwa neforogo kuenda kuma racks ekuchengetera uye kubva ipapo anoendeswa kuCrushing Plant odonhedzwa muhopper. Zvidimbu zvinopwanywa zvakanyanya nehopper hombe inoteverwa nehopper diki yozoongororwa. Zvidimbu zvakakura zvinoenda kuhopper yebhegi uye zvinotengeswa sechigadzirwa chakakanyiwa. Alum yakaongororwa inopwanywa rotary uye yoongororwazve kuti idzoserwe kurotary crusher kana kuti igoiswa muhopper sechigadzirwa chakakuyiwa. Guruva rinounganidzwa nguva dzose kuburikidza nesystem yekuburitsa uye rinotengeswa sechigadzirwa. Chirimwa chekupwanya chinochinjika uye chiyero chealuminium sulfate yakakuyiwa chinosiyana.
Nguva yekutumira: Kukadzi-18-2022