Sintering pupuhi mīhini niao, me te papanga hononga roha

mīhini Sintering ki rangi puhia i roto i te apa puranga (Figure 3.6.) E hanga me te mahi e whai ake. I roto i te kāmera ki te mea powhiriwhiri tiaki apa moenga takoha rangi. rawa te peka mahi katoa o te mīhini sintering te ki te piringa mo te kohinga o ngā haurehu oumu, me te hanga o te tikanga parukore pai o te mahi i roto i te toa. Ko te wāhi i raro i te whakaruru raro herenga wehea ki ngā rohe e rua: i te hau taonga (kaha rohe tahunga), me te rawakore (i roto i te muri) hau. I roto i te hononga ruma pupuhi papanga roha rohe hau taonga 9 kei roto i nei tukua rangi te raro i te pēhanga i tahi motuhake 3-4 kPa, i roto i te hau kikokore - 6 ruma pupuhi ki powhiriwhiri motuhake. Hau i te whakaruru ngote wehe rua pā whakarato piringa i raro i korehau o e pā ana ki 20 kPa. hau taonga i 5-7% te pūngāwhā hāora rua whakahaua te ki te hanga o te waikawa pungatara. I roto i enei whakakā 55-60% o te whanariki i roto i roto i te tiaki. hau rawakore i 2-2.5% te pūngāwhā hāora rua hangarua ranei ki whakatangi ki te tuatahi ruma 9 (mahi ki recirculation) i muri i te meangiti ki te 450-500 ° C ki te 80 ° C te tonoa ki te kohinga puehu ranei whiriwhiringa putea me tukua ki te kōhauhau. pupuhi tatou agglomachines rerekē kōpuku whakakā i te tiaki. mīhini sintering pupuhi whakaratohia ki toru hoppers kai: hoki te apa moenga, me te matua o te tiaki hei tahutahu. Ko te tiketike o te apa moenga ko 15-20 mm, 20-25 mm paparanga hei tahutahu me te apa turanga 200-250 mm o. rite te moenga te i komuhumuhu rahi matūriki agglomerate 8-15 mm o. paparanga hei tahutahu Ko te hautanga iti wehea nei i roto i te haruru i mua i uta i tiaki ki te whenu sinter. Hei tahutahu compensators haona me te kikokiko ki te hau hinu ranei muratahi kei waenganui i te apa pūwhāngai me te matua o te tiaki hei tahutahu. kahu tahuna neke me te rīpene, ka mahue i te apa o te tiaki matua. I raro i te maunga, ko te ruma mārua anake, ai korehau ko 1-1.5 kPa. agglomachines hua motuhake whakatangi niao ko 13-18 t / (m2sut). Rawakore i te pūngāwhā hāora rua hau sinter anake hoki te whakamahi i rite te komuhumuhu i roto i iahiko recirculating kia i raro i muri i tango o te puehu tukatuka motuhake, hei tauira, tikanga citrate, pera whakatinana i roto i te tāutanga o te mata US tipu. Gas (Figure 3.8.) He whangai ki te tīwae absorption ki te pupuha, me neke countercurrently ki te otinga o te waikawa citric. Ko te tōtika o te absorption o pūngāwhā hāora rua o te waikawa citric ko 96-99%. tukinotia te otinga i muri i te absorption te ki hauwai sulfide ki timatanga whanariki. Penupenu i muri i te wehenga o te whanariki te mäminga ki te ruma motuhake te wahi e tapiritia karahīni ki te tēnei waka whanariki. rewa te whanariki ora ake te ka ringihia ki te taimaha o 45 kg makanga. Kei te hoki mai otinga regenerated o te waikawa citric i te pūtau tēnei waka ki te tīwae absorption. Ko te kaha o te hau, ko te 2.8-4.2 m3 / min hau whanariki - 816 kg / ra.