ZIVEZWA NJANI IZIGANEKO?

Xa kuthelekiswa nobunye ubugcisa bokuphucula i-biomass, i-pelletisation yinkqubo esebenza ngokufanelekileyo, elula nexabiso eliphantsi. Amanyathelo amane angundoqo kule nkqubo ngala:

• ukugaya kwangaphambili imathiriyeli ekrwada
• ukomiswa kwemathiriyeli ekrwada
•ukugaya imathiriyeli ekrwada
• ukuxinana kwemveliso

La manyathelo anika amandla ukuveliswa kwe-fuel elinganayo kunye nokufuma okuphantsi kunye noxinano lwamandla aphezulu. Kwimeko apho izinto ezomileyo zikhoyo, kugalelwa kuphela kunye noxinaniso olufunekayo.

Ngoku malunga nama-80% eepellets eziveliswa kwihlabathi jikelele zenziwe ngamaplanga ebhayoloji. Kwiimeko ezininzi, iimveliso eziphuma kwiisarha zokusila ezifana nesarha kunye neetshefu ziyasetyenziswa. Ezinye iipellet ezinkulu zikwasebenzisa iinkuni ezinexabiso eliphantsi njengemathiriyeli ekrwada. Umthamo onyukayo weepellets ezithengiswayo zenziwa ngezinto ezifana neziqhamo ezingenanto (ezisuka kwi-oil palm), i-bagasse, kunye ne-rice husk.

Itekhnoloji enkulu yemveliso

Esona sityalo sikhulu ehlabathini ngokwemveliso yepellet yiGeorgia Biomass Plant (USA) eyakhiwe nguAndritz. Esi sityalo sisebenzisa iinkuni ezikhula ngokukhawuleza eziveliswa kumasimi epine. Izigodo ziyancothulwa, zicolwe, zomiswe kwaye zicolwe phambi kokuba zixinanisene kwimill yokusila. Umthamo we-Georgia Biomass Plant umalunga ne-750 000 yeetoni zeepellets ngonyaka. Imfuno yomthi yesi sityalo iyafana neyokungqusha iphepha.

Ubuchwephesha bemveliso encinci

Ubuchwephesha obuncinci bokuvelisa i-pellet ngokuqhelekileyo busekelwe kwi-sawdust shavings kunye ne-off-cuts ukusuka kwi-sawmill okanye kumashishini okulungisa amaplanga (Abavelisi bemigangatho, iingcango kunye nefenitshala njl. Imathiriyeli ekrwada eyomileyo iyasilwa, kwaye ukuba iyafuneka, ilungelelaniswe ngokuthe ngqo kwisixa esichanekileyo sokufuma kunye neqondo lobushushu elilelona liphezulu ngokulungiswa kwangaphambili ngomphunga phambi kokungena kwindawo yokusila apho ixinaniswe khona. Into epholileyo emva kokuba ilitye lokusila linciphisa ubushushu beepellets ezishushu emva koko iipellets zihluzwe phambi kokuba zifakwe engxoweni, okanye zisiwe kwindawo yokugcina imveliso.