Njengamanje, i-China inaka kakhulu ukuvikelwa kwemvelo nokongiwa kwamandla.Mayelana nezinsiza ezijulile zokucubungula amalahle, amakhasimende amaningi awazi ukuthi yikuphi okungcono ukukhetha amalahle agxotshiwe mpo roller mill kanye ne-ball mill yamalahle agayiwe.Ngokulandelayo, i-HCM ihlaziye izici zamalahle, okuyinzuzo ekukhetheni kwekhasimende umshini wokugaya amalahle.

I-HLMamalahle agxotshiwe mpo roller mill 

1. Ngenxa yomehluko ohlotsheni lokuthungwa kwamalahle kanye nebhayela esetshenzisiwe, izidingo zosayizi wezinhlayiyana zamalahle zihlukile.Ngokuvamile, izinga lokuhlola licishe libe ngu-90% kuma-meshes angu-200.Imishini yokugaya kufanele ikwazi ukulungisa ukucoleka;

2. Ngokuvamile, amabhulokhi amalahle akuzona izinto ezomile kakhulu.Ngokuvamile, amalahle aqukethe umswakama ongaphezu kuka-15%, futhi i-lignite ifinyelela ku-45%.Ngakho-ke, okokusebenza kokugaya amalahle kumele kukwazi ukuzivumelanisa nezinto ezinomswakama ophezulu futhi yomise izinto ezisetshenziswayo ngenkathi ugaya.Akudingekile ukusetha isomisi esihlukile ukwandisa inqubo yokomisa;

3. Amalahle aqukethe amanzi avuthayo avuthayo, futhi amalahle ngokwawo ayakwazi ukuvutha, ngakho-ke izinyathelo ezivimbela ilangabi kanye nezinyathelo zokuvikela ukuqhuma kufanele zithathwe ngesikhathi sokugaya;

4. Amalahle aqukethe ukungcola okuqinile futhi okunzima ukugaya, okudingekayo ukuzivumelanisa nokungcola okunzima futhi okunzima ukugaya ngesikhathi sokugaya;

Ibhola lokugaya nomaamalahle agxotshiwempo roller millukulungiselela amalahle agayiwe?Nakuba kokubili isigayo se-roller esime mpo samalahle esihlutshiwe kanye nesigayo sebhola singacubungula amalahle ngokujulile, kusukela ekuhlaziyweni kwezici zamalahle, isigayo se-roller esime mpo samalahle acindezelwe sifaneleka kakhulu ngenxa yezizathu ezintathu:

Okokuqala, umshini wokugaya amalahle oqondile wamukela inqubo yokukhiqiza eyingqayizivele kanye nesakhiwo, esithatha indawo encane, enothuli oluncane nomsindo ngesikhathi sokukhiqiza, futhi sikhiqiza amalahle ahlutshiwe anohlelo olusebenza kahle kakhulu kanye nokusebenza okuhle kakhulu kokuvutha.

Okwesibili, uma kuqhathaniswa nesigayo sebhola esikalini esifanayo, ukusetshenziswa kwamandla kwesigayo esigaywe samalahle esiqondile kungasindisa u-20~40%, ikakhulukazi uma umswakamo wamalahle ungakahluzwa mkhulu.Ngaphezu kwalokho, lesi sigayo se-roller esiqondile sisebenzisa ukusebenza kokushanela umoya.Ngokulungisa izinga lokushisa lomoya ongenayo kanye nevolumu yomoya, amalahle aluhlaza anomswakama ofinyelela ku-10% angagaywa futhi omiswe.Umthamo womoya ophezulu usetshenziselwa ukuhlangabezana nemfuneko yokomisa ngomswakama ophezulu, ngaphandle kokwengeza imishini yokusiza.

Okwesithathu, umshini wokugaya amalahle oqondile uhlanganisa izinqubo ezinhlanu zokuchotshozwa, ukugaya, ukomisa, ukukhethwa kwempushana kanye nokuthutha.Inqubo ilula, ukwakheka kuhlangene, indawo ephansi imayelana ne-60-70% yesistimu yokugaya ibhola, futhi indawo yokwakha imayelana ne-50-60% yesistimu yokugaya ibhola.

Okubaluleke kakhulu ukuthi i- umshini wokugaya amalahle omile mpoyamukela i-powder concentrator esebenza kahle kakhulu, enokukhethwa okuphezulu kwempushana kanye negumbi elikhulu lokulungisa.Ukucoleka kokukhethwa kwempushana kungafinyelela ngaphansi kuka-3% wensalela yesisefo engu-0.08 mm, engahlangabezana nezidingo zokucoleka zekhwalithi ephansi kakhulu yokugaya amalahle noma i-anthracite emgqeni wokukhiqiza usimende.