Ka twogere Ku Destoner: "Omukuumi w'obukuumi" Ow'omugaso mu kyuma ky'obuwunga
Mu kusiba obuwunga, ebyuma ebimu bikulu nnyo ddala kubanga tobitegeera bubi-okutuusa lwe biremererwa. Omusaanyi w’amayinja y’omu ku abo. Si kye kyuma ekisinga okuwulikika, naye kiyimiridde wakati w’okukola obulungi n’okuyimirira okw’amaanyi.
Mu ngeri ennyangu, omulimu gwayo kwe kuggyawo obucaafu obwo "obukodo": amayinja, ebitundutundu by'endabirwamu, n'ebitundu by'ebyuma ebirina obunene nga bwe bumu n'obukuta bw'eŋŋaano naye nga bizitowa. Zino tuziyita "amayinja abiri"-zekweka mu kukulukuta kw'eŋŋaano ng'ababeezi abatambula ku mabbali, era ebisenge ebya bulijjo tebisobola kubyawula.
Lwaki ogenda mu maaso n’okukola ku mayinja gano amatonotono?
Ekimera kyaffe kyayiga essomo lino mu ngeri enzibu emyaka ebiri egiyise ejjinja ettono bwe lyayitamu ne liyingira mu kyuma ekisenya:
Obukuumi bwe businga okweraliikiriza: Amayinja gasobola okukuba ennimi z’omuliro nga gakuba emizingo egy’okusiiga egy’amaanyi-sipiidi. Mu mbeera y’enfuufu ey’ekyuma ekikuba obuwunga, ennimi y’omuliro emu eyinza okuvaako ekintu ekinene.
Okwonooneka kw’ebyuma kufiirwa okulabika: Obubenje buyinza okuleeta ebiwujjo mu mizingo egy’okusena. Ebisale by’okuddaabiriza n’obudde bwa layini y’okufulumya byombi bikiikirira okufiirwa.
Obukuumi bw’emmere y’ensonga enkulu: Amayinja okusiigibwa ne gafuuka butto ne gatabulwa mu buwunga kijja kukosa omutindo gw’obuwunga n’obukuumi bw’emmere.
Kiteekebwa wa mu layini y’okufulumya?
Tugiteeka ku kifo ekisinga obukulu-ekifo ekisembayo okukeberebwa nga eŋŋaano tennayingira mu kyuma ekisekula. Entambula eringa bweti:
Okuyingiza eŋŋaano → Pre-cleaner (okuggyawo obusaanyi n’ebisasiro) → Magnetic separator (alonda ebitundu by’ebyuma) → Destoner (core stone-omutendera gw’okuggyawo) → Scourer → Tempering bin → Grinding mill
Bw’ogiteeka wano kikakasa nti eŋŋaano ennyonjo yokka y’etuuka ku basiiga.
Ekyuma kino mu butuufu kikola kitya?
Omusingi guno gwa magezi nnyo. Ekyuma kino kirina ekisenge kya ssirini ekiserengese ekikankana ng’empewo efuuwa waggulu okuyita mu kyo okuva wansi. Eŋŋaano n’amayinja bikka ku ddeeke wamu, era wansi w’ekikolwa eky’okukankana n’okutambula kw’empewo okugatta, bifuuka mu ngeri ya otomatiki: ebikuta by’eŋŋaano ebiweweevu bitengejja waggulu, ate amayinja amazito ne gabbira wansi. Enkola y’okukankana kwa ddeeke ya njawulo-ereetera amayinja agasenze okulinnya ku lusozi nga gagenda ku lusozi ne gakulukuta nga gayita mu kifo ekifulumye, ate ebikuta by’eŋŋaano ne bikulukuta wansi n’omusenyu okutuuka ku mutendera oguddako.
Ekkolero lyaffe likozesa ekyuma ekiggyamu amayinja ekiyitibwa aspirating (suction-type). Kiyungibwa nga kiyita mu payipu y’omukutu gw’empewo, ekitegeeza nti enfuufu ntono efuluma mu musomo, ekigifuula etali ya bulabe eri obutonde bw’ensi.
Okusobola okugikuuma ng’ekola mu ngeri eyesigika, ebintu ebitonotono bikulu:
Emmere erina okuba nga-si nnyingi nnyo oba ntono nnyo omulundi gumu-oba okugabanya mu bitundu (stratification) kukosebwa.
Entambula y’empewo yeetaaga okutereezebwa obulungi, era wano obukugu we buyingira Empewo ntono nnyo, era eŋŋaano ekolebwa n’amayinja, ekivaako kasasiro. Empewo nnyingi nnyo, n’amayinja tegajja kuserengeta, kale okuggyawo tekujjuvu.
Deki ya ssirini erina okukeberebwa buli kiseera n’okuweebwa endagiriro singa eyambala oba ng’ezibiddwa.
Wuliriza eddoboozi buli lunaku: ekyuma ekikola obulungi kirina okuwuuma okutambula obutasalako; amaloboozi agatali ga bulijjo gasobola okulaga nti waliwo ekizibu.
Ku nkomerero, ekyuma ekitta amayinja tekikoma ku kyuma kyokka
Eri ffe, kisinga kufaanana "omukuumi w'obukuumi" n'omukuumi w'omulyango ogw'omutindo. Kye kikola si kuyonja kwokka-kiteekawo omusingi gw'enkola yonna ey'okufulumya:
Kikuuma ebyuma, kiyamba ebyuma eby’ebbeeyi ng’ebyuma ebisena okuwangaala.
Kikakasa obukuumi, okumalawo obulabe obw’amaanyi obw’okubwatuka kw’enfuufu.
Kikakasa omutindo, kiwa obwesige mu buwunga obuva mu kimera.
Kikuuma obulungi, okukendeeza ku kufiirwa kw’eŋŋaano ennungi-n’okwewala okuyimiriza okufulumya.
Buli lwe mpitako ne mpulira okuwuuma kw’amayinja okutambula obutasalako nga gagwa mu nsawo y’okukung’aanya, mpulira nga nkakasa. We kiyimiridde ye layini esinga obukulu ey’okwekuuma wakati w’ebintu ebisookerwako n’ebintu ebiwedde.
