Sintering igwe igbu ịkpụzi na ákwà mgbasa nkwonkwo

Sintering igwe na ikuku fụọ site na ogbe oyi akwa (Ọgụgụ 3.6.) Ndi wuru na-arụ ọrụ dị ka ndị a. Na igwefoto na a pallet oyi akwa ụgwọ ofufe amanye ikuku. All ọrụ n'alaka ụlọ ọrụ nke sintering igwe na-onwem na a ndo maka collection of n'ekwú ọkụ gas na e kere eke nke ọma ịdị ọcha n'ọnọdụ ọrụ na ụlọ ahịa. The ohere n'okpuru ndo dabere kewara abụọ zones: a ọgaranya gas (ufiop ọkụ mpaghara), na ndị ogbenye (na azụ) gas. Na ọgaranya gas mpaghara 9 nsogbu igbu ulo-ákwà mgbasa nkwonkwo na nke ikuku na-ọnọ nrụgide site iche iche ofufe 3-4 kPa, na dabere gas - 6 ịfụ-ulo na iche iche ofufe. Gas si ndo ṅụrụ iche iche abụọ Fans enye ndo n'okpuru agụụ nke banyere 20 kPa. Rich, haruru si 5-7% sọlfọ dioxide na-eduzi na mmepụta nke na igirigi ibu sulphuric acid. Na ndị a switches 55-60% nke sọlfọ ẹdude ke ụgwọ. Ogbenye, haruru si 2-2.5% sọlfọ dioxide ma ọ bụ recycled ịfụ n'ime akpa-ulo 9 (ọrụ recirculation) ma ọ bụ mgbe obi jụrụ ka 450-500 ° C na 80 ° C na-zigara a ájá collection akpa nzacha na atara n'ime ikuku. Anyị ịfụ agglomachines dị iche iche ọnụ edita ụgwọ. Ike bu sintering igwe nyere na atọ oriri hoppers: n'ihi na bed oyi akwa na isi nke incendiary ụgwọ. The elu nke bed oyi akwa bụ 15-20 mm, 20-25 mm incendiary oyi akwa na isi oyi akwa nke 200-250 mm. The bed na-kwadebere si ekesa agglomerate urughuru size of 8-15 mm. Incendiary oyi akwa bụ a obere nta nke a na-kewapụrụ na mbigbọ tupu itinye ego na sinter Strand. Incendiary mpi na anụ ahụ compensators na gas ma ọ bụ mmanụ burners dị n'agbata feeder oyi akwa na isi nke incendiary ụgwọ. Ìhè oyi akwa na-akpụ akpụ na rịbọn, na-ahapụ a oyi akwa nke isi ego. N'okpuru ugwu bụ naanị agụụ ulo, ebe agụụ bụ 1-1.5 kPa. Specific arụpụtaghị agglomachines ịfụ ịkpụzi bụ 13-18 t / (m2sut). Ogbenye site sọlfọ dioxide gas sinter ma e wezụga n'ihi na iji dị ka ekesa na recirculating sekit nwere ike doro mgbe mwepụ nke ájá iche iche nhazi, e.g., citrate usoro, dị ka emejuputa atumatu ke echichi nke a ụzọ US osisi. Gas (Ọgụgụ 3.8.) Na-nri na absorption kọlụm na a nozulu na-akpali countercurrently na a ngwọta nke citric acid. The arụmọrụ nke absorption nke sọlfọ dioxide nke citric acid bụ 96-99%. The ngwọta mgbe absorption-emeso ya na hydrogen sulfide na elemental sọlfọ ahụ. Pulp mgbe nkewa nke sọlfọ pumped n'ime a pụrụ iche ulo ebe kerosin na-agbakwunyere na sọlfọ flotation. The natara sọlfọ na-gbazee na wụsara n'ime a mgbatị arọ nke 45 n'arọ. Regenerated ngwọta nke citric acid si flotation cell na-laghachiri absorption kọlụm. The ike nke gas bụ 2.8-4.2 m3 / min gas sọlfọ - 816 kg / ụbọchị.