Imeko yophuhliso lwezakhiwo zekhonkrithi eziqinisiweyo
Okwangoku, ikhonkrithi eqinisiweyo yeyona ndlela isetyenziswa kakhulu e-China, ukubala uninzi lwayo yonke. Kwangelo xesha, ikwayindawo enezona ndawo zomeleleyo zekhonkrithi emhlabeni. Imveliso yesamente yayo eluhlaza ifikelele kwi-1.882 yezigidi zeetoni ngo-2010, ebalwa malunga ne-70% yayo yonke imveliso ehlabathini.
Ukusebenza komgaqo wesamente
Isizathu sokuba ikhonkrithi eqinisiweyo isebenze kunye igqitywe zizinto zayo. Okokuqala, imivalo yentsimbi kunye nekhonkrithi zinokulingana kokulingana okwandayo kwe-thermal, kunye nokususwa phakathi kweentsimbi kunye nekhonkrithi kuncinci kakhulu kubushushu obufanayo. Okwesibini, xa ikhonkrithi iqina, kukho ukudibana okuhle phakathi kwesamente kunye nomphezulu wokuqinisa, ukuze naluphi na uxinzelelo lunokudluliselwa ngokufanelekileyo phakathi kwabo; Ngokubanzi, umphezulu wokuqiniswa ukwenziwa kwakhona kwiimbambo ezirhabaxa kunye nezisasazekileyo (ezibizwa ngokuba yi-rebar) ukuphucula ngakumbi ukubopha phakathi kwekhonkrithi kunye nokomeleza; Xa oku kungonelanga ukuhambisa uxinzelelo phakathi kokuqiniswa kunye nekhonkrithi, ukuphela kokuqiniswa kuhlala kugobile ama-180 degrees. Okwesithathu, izinto zealkaline kwisamente, ezinjengecalcium hayidroksayidi, i-potassium hayidroksayidi kunye nesodiyam hayidroksayidi, zibonelela ngendawo enezinto ezinobushushu, ezenza umboniso wokhuseleko kumhlaba wokomeleza, ngenxa yoko kunzima ngakumbi ukonakalisa kunokuqinisa kwimeko engathathi hlangothi kunye neasidi. Ngokubanzi, okusingqongileyo ngexabiso le-pH ngaphezulu kwe-11 kunokukhusela ngokufanelekileyo ukuqiniswa nokubola; Xa ubhencekile emoyeni, ixabiso le-pH lekhonkrithi eqinisiweyo liyehla kancinci ngenxa ye-asidi yecarbon dioxide. Xa ingaphantsi kwe-10, ukuqiniswa kuya kudleka. Ke ngoko, kuyafuneka ukuba kuqinisekiswe ubukhulu bomaleko wokhuselo ngexesha lokwakhiwa kweprojekthi.
Ukucaciswa kunye nohlobo lokuqiniswa okukhethiweyo
Umxholo wokuqiniswa okuqinisiweyo kwikhonkrithi eqinisiweyo ihlala incinci, ukusukela kwi-1% (ubukhulu becala kwimiqadi kunye neeslabs) ukuya kwi-6% (ubukhulu becala kwiikholamu). Icandelo lokuqiniswa lisetyhula. Ububanzi bokuqiniswa e-United States bonyuka ukusuka kwi-0.25 ukuya kwi-intshi enye, inyuka nge-intshi ye-1/8 kwibakala ngalinye; EYurophu, ukusuka kwi-8 ukuya kwi-30 mm, inyuka nge-2 mm kwinqanaba ngalinye; Izwekazi laseTshayina lahlulwe laba ziinxalenye ezili-19 ukusuka kwiimilimitha ezi-3 ukuya kwezingama-40. E-United States, ngokomxholo wekhabhoni wokuqinisa, yahlulwe yintsimbi engama-40 kunye neentsimbi ezingama-60. Le yokugqibela inomxholo ophezulu wekhabhoni, amandla aphezulu kunye nokuqina, kodwa kunzima ukugoba. Kwimeko engqongileyo kunye neentsimbi ezenziwe nge-electroplating, i-epoxy resin kunye nentsimbi engenasici nayo iyasetyenziswa.
Ixesha lokuposa: Aug-10-2021