Pamene dziko limayika kufunikira kwa chitetezo cha chilengedwe, ngati mtundu wa zinyalala zolimba, momwe mungagwiritsire ntchito slag yachitsulo yakhala mutu wofunikira. Nkhaniyi ikuwonetsa njira yokwanira yaukadaulo yokonzanso zitsulo zachitsulo. Ukadaulo waumisiri wowuma uyenera kuwonetsetsa kuchira bwino kwazitsulo mbali imodzi ndikugwiritsa ntchito mokwanira zotsalira za zinyalala kwina. Njira zotsatirazi zopangira zitsulo zachitsulo zafotokozedwa: Kuphwanya kosankha; kupatukana kwa maginito ndi udindo wa chipangizo chatsopano cha single-drive high-pressure roller mphero pakugwiritsa ntchito mokwanira chitsulo slag; kugwiritsa ntchito zipangizo zatsopano kungachepetse kwambiri mtengo wa zitsulo za slag, potero kumapanga phindu lochulukirapo pakugwiritsa ntchito zitsulo zachitsulo. Kupititsa patsogolo kugwiritsiridwa ntchito kokwanira kwa zitsulo zachitsulo kwapangitsa kuthekera. Kukwezeleza ganizo lathunthu mumakampaniwa kumafuna kuyesetsa kwamakampani opanga zitsulo, akatswiri okonza mchere ndi akatswiri, kukhazikitsidwa kwathunthu kwa ntchitoyi, komanso madipatimenti otsatsa ndi kukwezedwa.
Ntchito zomanga zitsulo slag
1) Slag yachitsulo imagwiritsidwa ntchito popanga simenti ndi zosakaniza za konkire. Slag yachitsulo imakhala ndi mchere wogwira ntchito monga tricalcium silicate (C3S), dicalcium silicate (C2S) ndi chitsulo chosungunuka ndi hydraulic cementing properties, zomwe zimagwirizana ndi makhalidwe a simenti. Choncho, angagwiritsidwe ntchito ngati zopangira ndi simenti admixture kupanga sanali clinker simenti, zochepa clinker simenti. Simenti yachitsulo ya slag ili ndi makhalidwe abwino kwambiri monga kukana kuvala, kusinthasintha kwakukulu, kukana kwa dzimbiri ndi kukana chisanu.
2) Slag yachitsulo imalowa m'malo mwa miyala yophwanyidwa ndi kuphatikiza bwino. Mwala wophwanyidwa wachitsulo wa slag uli ndi ubwino wokhala ndi mphamvu zambiri, pamwamba pake, kukana kuvala bwino komanso kukhazikika, voliyumu yayikulu, kukhazikika kwabwino, komanso kuphatikiza kolimba ndi phula. Poyerekeza ndi mwala wamba wophwanyidwa, umalimbananso ndi Makhalidwe a kutentha kwapansi, kotero ukhoza kugwiritsidwa ntchito kwambiri muzitsulo zamsewu. Steel slag, monga ballast ya njanji, ili ndi mawonekedwe osasokoneza ntchito yolumikizirana ndi njanji komanso kuyendetsa bwino kwamagetsi. Chifukwa slag yachitsulo imakhala ndi madzi abwino otsekemera ndi madzi, zigawo za simenti zomwe zili mkati mwake zimatha kuumitsa kukhala zidutswa zazikulu. Slag yachitsulo ndi yoyeneranso kupanga misewu m'madambo ndi magombe.
Pakalipano, njira yodziwika kwambiri yogwiritsira ntchito zitsulo zapakhomo ndikuphwanya zitsulo mpaka -5mm kusintha mchenga wamtsinje ngati zomangira, kapena kupukuta zitsulo zophwanyika kukhala ufa wabwino kuti zigwiritsidwe ntchito ngati chowonjezera cha simenti. Shandong Huate Magnetoelectric Technology Co., Ltd. yachitanso kafukufuku wozama pakugwiritsa ntchito zitsulo zonse, mwanzeru idagwiritsa ntchito mphero imodzi yokhayokha yopumira kwambiri pakuphwanyidwa bwino kwachitsulo, kupititsa patsogolo luso laukadaulo lachitsulo, ndipo anapindula zabwino zachuma. Zagwiritsidwa ntchito bwino ku Pangang Mining ndi bizinesi ina yachitsulo ku Lianyungang.
Njira yopangira zitsulo zachitsulo ndi izi:
1) Zidutswa zazikuluzikulu zimaphwanyidwa ndi nsagwada ku -50, ndipo chitsulo cha maginito chimalekanitsidwa ndi maginito pulley.
2) Khazikitsani kukula kwa chitsulo ku +45 mm. Otsala 0-45 mm nthawi zambiri amagwiritsidwa ntchito ngati misewu ndi kudzaza zida. Kuti muwonjezere mtengo wake, slag yachitsulo imatha kugawidwa mu 0-4, 4-8 ndi magiredi ena osiyanasiyana. Ukadaulo umafunikira ndalama zochepa komanso zotsika mtengo zogwirira ntchito. Komabe, kuposa 50% ya zitsulo zomwe zili mu slag zimayikidwa mu mphamvu -10 mm, kotero lusoli lidzachititsa kuti zitsulo zambiri ziwonongeke, koma zitsulo zolemera zidzawonjezeka.
Choncho, kupukuta konyowa kwagwiritsidwa ntchito kwambiri makamaka pa slag yomwe imapangidwa popanga zitsulo zamtengo wapatali zomwe zili ndi Cr, Ni, Mo, etc. Njira zodziwika bwino zimaphatikizapo kuphwanya ndi kupukuta kwapawiri (ndodo mphero / mphero). ). Popeza chitsulo chokhala ndi ductility sichiri chophweka pogaya, kulekanitsa zitsulo ndi zitsulo slag kungapezeke mwa sieving kapena gulu. Ubwino wa gawo la mchere wa slag nthawi zambiri umakhala pamwamba pa 95% ndi pansi pa 0.2mm. Mlingo wobwezeretsa zitsulo zamtunduwu umaposa 95%, ndipo zokolola zazitsulo zopangidwa ndi 90 mpaka 92%. Kuchokera pakuwona kulekanitsa zitsulo ndi slag, njirayi inganenedwe kuti ndiyo njira yabwino kwambiri.
Choyipa chachikulu cha njirayi ndikuti slag yachitsulo yopatulidwa ndi slurry yabwino. Chifukwa ndondomekoyi ndi yonyowa, zimakhala zovuta kugwiritsa ntchito pomanga nyumba. Choncho, zinthu zambiri zachitsulo zotsalira pambuyo posankhidwa zitsulo zimatayidwa, ndipo izi nthawi zambiri zimakhala chifukwa cha kukwera mtengo kwa kuyanika konyowa ndi zoletsedwa zalamulo padziko lonse lapansi. Kugwiritsa ntchito kulikonse kwamtengo wapatali kumafunikira njira zina zochizira matope onyowa (kuyanika, kukhuthala, etc.).
Chisankho chiyenera kupangidwa nthawi zambiri pakati pa kuchuluka kwachitsulo chobwezeretsa kapena kupezeka kwa slag yotsalayo. Kawirikawiri, kusankha kumeneku kumadalira mtengo wachitsulo chobwezeretsedwa.
Njira zodziwika bwino panthawiyi ndi izi:
Zidutswa zazikuluzikulu zimaphwanyidwa ndi nsagwada mpaka -50, ndipo chitsulo cha maginito chimalekanitsidwa ndi maginito pulley.
-50 slag yachitsulo imaphwanyidwa ndi nyundo ya nyundo kapena chopondapo, chophwanyira, chophwanyidwa kupyolera mu sieve yamitundu yambiri, -20-10 grit mankhwala angagwiritsidwe ntchito ngati miyala, -10-1 grit mankhwala angagwiritsidwe ntchito ngati mchenga wabwino.
Table I
Kuwunika kwa tinthu tating'onoting'ono ta 50mm chakudya mu chophwanyira nyundo
-10 grain steel slag imasiyidwa kukhala mphero youma kukhala -200 mesh fine powder, ndiyeno electromagnetic dry powder magnetic separator imagwiritsidwa ntchito kuchotsa chitsulo ngati chowonjezera simenti.
Nthawi yotumiza: Apr-12-2021