Izingcezu Ezine Eziyisisekelo Zezinsiza Zezinhlelo Zokufutha Electrostatic

Iningi i-powder coating amasistimu wokufutha we-electrostatic aqukethe izingcezu ezine eziyisisekelo zemishini - i-hopper yokuphakelayo, isibhamu sempushana ye-electrostatic, umthombo wamandla we-electrostatic, kanye neyunithi yokutholwa kwempushana. Ingxoxo yesiqeshana ngasinye, ukusebenzisana kwayo nezinye izingxenye, kanye nezitayela ezihlukahlukene ezitholakalayo kuyadingeka ukuze kuqondwe ukusebenza komsebenzi wale nqubo.

Impushana ihlinzekwa esibhamuni sokufuthwa isuka kuyunithi ye-powder feeder. Ngokuvamile impahla eyimpushana egcinwe kule yunithi ifakwa emanzini noma ifakwe amandla adonsela phansi emshinini wokumpompa ukuze ihanjiswe ku(izi)bhamu zokufutha (Umfanekiso 5-9). Amasistimu okuphakelayo asanda kuthuthukiswa angampompa impushana ngokuqondile ebhokisini lokugcina.

Idivayisi yokupompa ngokuvamile isebenza njenge-venturi, lapho ukugeleza komoya okucindezelwe noma okuphoqelelwe kudlula epompo, kudala umphumela wokukhipha i-siphoning kanye ne-powder yokudweba kusuka ku-hopper yokuphakelayo ibe yi-powder hoses noma amashubhu okuphakelayo, njengoba kuboniswe ku-Figure 5-10. Umoya uwufuzoralisetshenziswa kahle ukuhlukanisa izinhlayiya zempushana ukuze kube lula ukuthutha nokushaja amandla. Ivolumu kanye nesivinini sokugeleza kwempushana kungashintshwa.

Ezimweni eziningi, idivayisi yokuphakelayo isebenzisa umoya, ukudlidliza, noma izinyakazi zemishini ukuze zisize “ekuhlukaniseni” isisindo sempushana. Lesi senzo siholela ekuthuthweni okulula kwempushana, kuyilapho kusiza ekulawuleni umthamo kanye nesivinini sokugeleza kwempushana ku(izi)sibhamu zokufutha. Ukulawula okuzimele kwempushana kanye namavolumu omoya kusiza ekutholeni ugqinsi olufunwayo lokumbozwa kokumboza. I-powder feeder iyakwazi ukuhlinzeka ngezinto ezanele kusibhamu esisodwa noma ngaphezulu se-electrostatic spray gunral izinyawo kude. Iziphakeli zempushana zitholakala ngosayizi abaningi abahlukene, nokukhethwa kuye ngokuthi zisetshenziswa kanjani, inani lezibhamu ezizolethwa, kanye nomthamo wempushana ozofafazwa ngesikhathi esithile. Generalyakhiwe kahle ngeshidi lensimbi, iyunithi yokuphakelayo ingafakwa eduze kwayo, noma ibe yinhlanganiselaral ingxenye, iyunithi yokutakula.

Amayunithi okuphakelayo, asebenzisa umoya omanzi ukuze enze lula ukumpompa okubalulekile okuyimpushana emcabangweni wesifutho. Umoya ocindezelwe, noma ophoqelelwe, unikezwa isakhi sofuzo se-air plenumralitholakala ezansi kweyunithi yokuphakelayo. Phakathi kwe-plenum yomoya kanye nomzimba oyinhloko weyunithi yokuphakelayo kukhona ulwelwesi, ngokuvamile olwakhiwe ngezinto ezinezimbotshana eziyinhlanganisela yepulasitiki. Umoya ocindezelwe udlula kuwo uye emzimbeni omkhulu weyunithi yokuphakela, lapho kugcinwa khona izinto eziyimpushana. Isenzo somoya esiwuketshezi siphumela ekuphakamiseni impahla eyimpushana phezulu, kwakheka isimo esiyaluzayo, noma esisamanzi (Umfanekiso 5-2). Ngalesi senzo sokukhipha uketshezi, kungenzeka ukulawula ukulinganiswa kwempushana ethathwe kuyunithi yokuphakela ngedivayisi yokumpompa enamathiselwe, noma engaphansi kwamanzi (bona uMfanekiso 5-9).

Uma kusetshenziswa amayunithi okuphakelayo ohlobo lwe-gravity, ukusebenza kuhilela iyunithi emise okwefaneli lapho kugcinwa khona izinto eziyimpushana. Imishini yokumpompa enamathiselwe kulolu hlobo lweyunithi yokuphakelayo ngokuvamile ingeyephampu yohlobo lwe-venturi. Kwezinye izimo, ukudlidliza noma ama-stirrers emishini asetshenziselwa ukuthuthukisa i-powder siphoning ngomphumela we-venturi okhiqizwa idivayisi yokupompa. I-Powder amandla adonsela phansi afakwa kumishini yokupompa, futhi uketshezi lwempushana akudingekile. Futhi, bheka uMfanekiso 5-9. Impushana ingase futhi ilethwe ngokuqondile emabhokisini empushana noma iziqukathi kusetshenziswa ishubhu ye-siphon ene-double-well, ehlinzeka ngoketshezi olwanele lwasendaweni ukuze kuvunyelwe ukulethwa okufanayo.

Imishini yokuhluza ngezinye izikhathi isetshenziswa ngokuhambisana namayunithi okuphakelayo ukuze kuhlolwe noma yikuphi ukungcola, izigaxa zempushana, nezinye izibi, kanye nokubeka isimo sempushana ngaphambi kokufafaza. Lezi zisefo zingafakwa ngokuqondile noma ngaphezulu kweyunithi yokuphakelayo ukuze kube lula ukugeleza kwempushana ngaphakathi kweluphu evaliwe yokulethwa kwempushana, isifutho, kanye nokululama (Umfanekiso 5-1 1).

Izingcezu Ezine Eziyisisekelo Zezinsiza Zezinhlelo Zokufutha Electrostatic