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Eli nqaku libonelela ngesishwankathelo esibanzi amalahle athambileyo, ukuhlola iimpawu zayo, izicelo, kunye nezinto ezinokuthi ziqwalaselwe xa usebenza ngolu hlobo lwamalahle. Singena kwiimpawu zayo ezahlukileyo, sithelekisa nezinye iintlobo zamalahle kwaye siqaqambise usetyenziso lwalo oluthile kumashishini ahlukeneyo. Sikwaxoxa ngeempembelelo zokusingqongileyo ezinxulumene nokusetyenziswa kwayo. Funda malunga neenzuzo kunye nokungalunganga kokusebenzisa amalahle athambileyo kunye nendima yayo kumhlaba wamandla ehlabathi.
Amalahle athambileyo, eyaziwa ngokuba yi-sub-bituminous coal, imele isiteji kwinkqubo yokudibanisa phakathi kwe-lignite (amalahle amdaka) kunye namalahle e-bituminous. Ibonakala ngeempawu zayo eziphakathi, iwela phakathi kwe-lignite ethambileyo, encinci yamandla-exineneyo kunye ne-bituminous eqinile, ephezulu yamandla amalahle. Ubumanzi bayo buphezulu xa kuthelekiswa namalahle e-bituminous, okuchaphazela ukuphatha kwayo kunye neempawu zokutsha. Iimpawu ezithile ze amalahle athambileyo inokwahluka kakhulu ngokuxhomekeke kwimvelaphi yayo yokwakheka komhlaba kunye neemeko zokwakheka. Ukuqonda ezi yantlukwano kubalulekile kusetyenziso olusebenzayo nolusebenzayo.
Uphawu oluphambili lwe amalahle athambileyo sisiqulatho saso sokufuma esiphezulu, esiqhele ukuqala kwi-15% ukuya kwi-30%. Oku kuchaphazela ubuninzi bayo bamandla kwaye kufuna uhlengahlengiso kwiinkqubo zokutsha. Umxholo wothuthu, umlinganiselo wezinto ezingatshiyo, nazo ziyahluka kakhulu kodwa ngokubanzi ziwela phakathi koluhlu oluthile. Isiqulatho sokufuma esiphezulu sihlala sitolika kwixabiso eliphantsi lokufudumeza ngeyunithi nganye yobunzima xa kuthelekiswa namalahle ebhituminous. Ukumiselwa ngokuchanekileyo kokufuma kunye nothuthu luyimfuneko ekusebenziseni ngokufanelekileyo kunye namaxabiso.
Amalahle athambileyo inexabiso elisezantsi lokufudumeza kunelahle lebhituminous kodwa liphezulu kune-lignite. Eli xabiso lokufudumeza, elichazwe kwii-British Thermal Units (BTU) ngeponti okanye i-megajoules ngekhilogram, ibonisa ubungakanani bamandla akhutshwe ngexesha lokutsha. Umxholo wesulfure ngomnye umba obalulekileyo, ochaphazela ukuqwalaselwa kokusingqongileyo ngenxa yokukhutshwa kwesulfure dioxide. Isulfure ephantsi amalahle athambileyo idla ngokukhethwa ngenxa yezizathu zokusingqongileyo.
Umxholo womba oguquguqukayo kwi amalahle athambileyo iphembelela ukuziphatha kwayo kokutsha. Isiqulatho semiba eguquguqukayo ephezulu ngokuqhelekileyo ithetha ilahle elisebenza ngakumbi elivutha ngokukhawuleza. Ikhabhoni engaguqukiyo, into eseleyo enokutsha emva kokuba into eguquguqukayo igxothwe, inegalelo elikhulu kwixabiso lobushushu elipheleleyo. Umlinganiselo wezinto eziguquguqukayo kwikhabhoni esisigxina yinto ebalulekileyo ekukhetheni ubugcisa obufanelekileyo bokutsha.
Amalahle athambileyo ifumana usetyenziso kumashishini ahlukeneyo, nangona ukusetyenziswa kwayo kuhlala kuphenjelelwa ziipropati kunye nokufumaneka kwayo. Isetyenziswa ngokuqhelekileyo ekwenzeni amandla, ngakumbi kwimimandla enoovimba abaninzi. Ngenxa yexabiso layo elisezantsi lokufudumeza, inokufuna uhlengahlengiso kuyilo lweplanti yamandla ekhoyo okanye ukusetyenziswa kobuchwepheshe obuthile bokutshisa. Isenokusetyenziswa kwiinkqubo zemizi-mveliso ezifuna ubushushu, nangona ubukho besiqulatho sokufuma esiphezulu bungafuna uhlengahlengiso kwiiparamitha zenkqubo.
Ukusetyenziswa kwe amalahle athambileyo, njengawo nasiphi na isibaso sefosili, ineempembelelo zokusingqongileyo. Inkqubo yokutsha ikhupha iigesi zegreenhouse, ngokuyintloko ikharbon diokside, ezifak’ isandla kutshintsho lwemozulu. Ngaphezu koko, umxholo wesulfure unokukhokelela ekukhutshweni kwesulfure dioxide, igalelo elikhulu kwimvula eneasidi. Ukwembiwa kunye nokuthuthwa kwe amalahle athambileyo kunokubangela umonakalo wokusingqongileyo. Ukunciphisa ezi ziphumo zokusingqongileyo kubalulekile, kwaye ukuqhubela phambili kubuchwephesha bamalahle kulandelwa ngenkuthalo.
| Uhlobo lwamalahle | Umxholo wokufuma | Ixabiso lokufudumeza | Umxholo wesulfure |
|---|---|---|---|
| Lignite | Phezulu (30-70%) | Phantsi | Iyaguquguquka |
| Amalahle athambileyo (I-sub-bituminous) | Phakathi (15-30%) | Phakathi | Iyaguquguquka |
| Amalahle eBituminous | Phantsi (2-10%) | Phezulu | Iyaguquguquka |
Qaphela: Uluhlu olunikezelweyo lwesiqulatho sokufuma, ixabiso lokufudumeza, kunye nomxholo wesulfure ziqikelelweyo kwaye zinokwahluka kakhulu ngokuxhomekeke kumthungo wamalahle kunye nendawo akuyo ngokwejoloji. Ukufumana idatha echanekileyo, jongana nophando olufanelekileyo lwejoloji kunye neengxelo zeshishini.
Ngolwazi oluthe kratya malunga nezibonelelo zamalahle kunye nezicelo zefektri, unokunqwenela ukubonisana neengcali zeshishini kunye nemibutho yophando. Qhagamshelana nathi ku I-Inner Mongolia i-Xinxin Silicon Industry Co.,Ltd ukufunda ngakumbi malunga nokuzibophelela kwethu kwizenzo zemizi-mveliso ezizinzileyo.
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