Ngwuputa coal kasị ukwuu na China - Haerwusu Open Pit Mine. Ebe a na-egwupụta coal dị na Inner Mongolia Autonomous Region City, Zhungeer Qi Ordos (Xuejiawan) Eastern genera na mpaghara a, e wuru North na Heidaigou Open-pit Coal mine. A na-eji ọtụtụ rollers na-egwupụta ihe n'ebe a na-egwupụta ihe.Ihe nchekwa coal nwere ike nwetaghachi bụ tọn 17.3, nkezi oke nha coal bụ mita 21.01, nha nha nha niile bụ 6.626 cubic mita kwa ton.Ndụ ọrụ imewe bụ afọ 79.Ebe a na-egwupụta kol nke mbụ nwere tọn 6.36, yana nkezi nha nke 4.099 cubic mita kwa ton, yana ndụ ọrụ nke afọ 32.

Ebe a na-egwupụta ọkụ maka ash, sọlfọ dị ala, obere phosphorus, nnukwu ihe na-agbanwe agbanwe, uru calorific dị elu, nnukwu ihe na-agbaze ash nke ogologo ọkụ ọkụ, nke a maara dị ka "coal green", coal nwere ikike dị elu, nwere atụmanya ahịa sara mbara. Ngwuputa teknụzụ nke ogbunigwe kol na nsochi na otu shọvel gwupụta ihe ịwụ na gwongworo na ịwepu ọrụ.Kwa ụbọchị, nnukwu ụlọ ọrụ ụwa nke gụnyere ndị na-ebupu gwongworo super heavy Transport team gbakọtara ebe a, nke a maara dị ka anụ ọhịa "iron na Steel Group Mining toil" si na-agba ọsọ na mpaghara Wujin na-egwupụta ihe, na-emepụta uru dị ukwuu.

Ebe a na-egwupụta coal a na-emepe emepe dị na Ordos Plateau, nke bụ otu n'ime ebe kachasị njọ nke mmiri na oke ala na China.Ọgba mmiri mbụ dị n'elu kwụ ọtọ na kwụ ọtọ, ahịhịa anaghị adị obere, oke ikuku na ọzara dị oke njọ, na gburugburu ebe obibi dị njọ nke ukwuu.Site na ihe owuwu bụ isi, a ga-emekọrịta oghere oghere coal na mmepe na greening. Mmepe ahụike nke coal m dị mma n'ahịa nke igwe na-ebufe igwe.

Ngwuputa coal kacha n'ụwa - Rochester coal mine.Ebe a na-egwupụta coal dị na Powder River Basin nke Wyoming, bụ ngwuputa coal kachasị n'ụwa nwere ihe karịrị tọn 23.Ebe a na-egwupụta akụ bụ otu n'ime ogige coal kasị ukwuu n'ụwa, nke ụlọ ọrụ Peabody na-arụ ọrụ ike. Kwa afọ, ogbunigwe na-azụta ọtụtụ igwe na-ebuga igwe.Ihe ndina coal nke Rochester coal mine nwere mita 18.3 nke elu elu nke 76.2 mita ma gbatịa kilomita 80.47.Ngwuputa a na-ekpuchi ebe dị square kilomita 258.9, nhata nha Washington, D. c.. Carbon nwere ihe dị ka tọn 30.Ọ na-ewe afọ 25 ruo 30 iji rụchaa ọrụ ngwungwu ahụ.A maara mmepụta coal nke Rochester dị ka coal kachasị dị ọcha, nkezi okpomọkụ nke coal kwa paụnd 8800 British thermal units, na sọlfọ ọdịnaya nke na-erughị 0.2%.

A na-eji kol na-adọkpụ na-adọkpụ na teknụzụ otu ịwụ na gwongworo, na-adabere na nnukwu akụrụngwa arụpụtara nke ukwuu, na-eme ka arụmọrụ ọrụ dịkwuo mma.Kwa ụbọchị, ihe dịka njem ụgbọ oloko 21 ga-esi na Wyoming's Rochester coal mine ruo 100 ọkụ na-agba ọkụ n'ofe mba ahụ.Ọbụna gwongworo ndị na-adọba ụgbọala na-adọba ụgbọala na Rochester coal mine ụlọ ọrụ nwere ike ibu ihe ruru tọn 440. A maara obodo ahụ dị ka "ihe oyiyi ụwa", "obodo ifuru", mmiri ọ bụla, okooko osisi na-eto eto, ya mere "ifuru" obodo” n'ụwa.