Chii chinonzi pneumatic conveing?
Pneumatic conveying (Pneumatic conveying) kureva kutakurwa kwezvakaoma zvakawanda kuburikidza nepombi uchishandisa mafambiro emhepo kana imwe gasi.... Pneumatic transportation inogona kuvakwa seyakanaka kudzvanywa kana vacuum system.
Pneumatic poda inofambisa inoshandisa simba rekuyerera kwemhepo.Pneumatic conveying inonziwo air conveying kana air conveying system.Kushandiswa kwakananga kweiyo fluidization tekinoroji kutakura zvinhu zvegranular nenzira yekuyerera kwemhepo mupombi yakavharwa.Kurongeka kweiyo pneumatic conveying mudziyo iri nyore uye iri nyore kushanda.Inogona kushandiswa kune yakachinjika, yakatwasuka kana oblique yekufambisa.Munguva yekufambisa maitiro, mashandiro emuviri akadai sekudziya, kutonhora, yakaoma-inoshamwaridzika kuyerera kwemhando, kana mamwe mavhisi emakemikari anogonawo kuitwa panguva imwe chete.
Zvinoenderana nekuwanda kwezvimedu mukufambisa kwepombi, kufambisa kwepneumatic kwakakamurwa kuita:
1. Dilute phase transportation: iyo yakasimba inenge isingasviki 100kg / m3 kana kuti yakasimba-kusvika-gasi reshiyo (yakawanda kuyerera kwechiyero pakati peiyo yakasimba yekufambisa vhoriyamu uye inofananidzwa gasi kushandiswa) ndeye 0.1-25.Iyo yekumhanyisa gasi inoshanda yakakwira zvakanyanya (inenge 1830ms, zvichienderana nekumanikidza kwegasi mupombi, yakakamurwa kuita yekusveta mhando uye rudzi rwekumanikidza kuburitsa. Kudzvanywa mupombi kwakadzikira pane kumanikidzwa kwemhepo, kuzvisveta wega, asi inofanirwa. kuburutswa pasi pekumanikidzwa kwakashata, uye inogona kutakurwa zvakadarikidza.Chinhambwe chipfupi; kudzvanywa kwepombi yekupedzisira kwakakwira kupfuura kudzvanywa kwemhepo, uye kubuda kuri nyore, uye kunogona kutakurwa kureba, asi hupfu. zvimedu zvinofanirwa kutumirwa mupombi yekumanikidza neanodyisa.
2. Dense phase transportation: nzira yekufambisa iyo iyo yakasimba yakasimba kupfuura 100kg / m3 kana kuti yakasimba-gasi reshiyo yakakwirira kudarika 25. Mhepo yekushanda yemhepo yakaderera, uye mhepo yakakwirira yemhepo inoshandiswa kugadzira hurongwa hwekufambisa mhepo. .Inopindirana nemhepo yakazadzwa tangi mhando dense phase yekufambisa.Isa zvimedu mudhishi tangi mumabhechi, uye wobva waisa mweya kuti uzvisunungure.Kana dzvinyiriro iri mutangi yasvika pane imwe dzvinyiriro, vhura vharuvhu yekuburitsa uye furidzira zvimedu mupombi inotakura yekufambisa.Pulse conveying ndeyekupfuura mhepo yakamanikidzwa kupinda mutangi rezasi kusunungura zvinhu;imwe pulse compressed atmosphere inoyerera ine frequency ye 2040min-1 inopeperetswa mukupinda kwepombi yekudyisa, ichigadzira alternately yakarongeka makoramu madiki uye zvikamu zvidiki mupombi Iyo mbiru yemhepo inoshandisa kumanikidza kwemhepo kusundira mberi.Dense phase yekufambisa ine hukuru hwekufambisa, inogona kudzvanywa kwechinhambwe chakareba, kukuvadzwa kwezvinhu uye kupfeka kwekugadzirisa kudiki, uye kushandiswa kwesimba zvakare kushoma.Paunenge uchiita dilute chikamu chekufambisa mune yakachinjika pombi yekufambisa sisitimu, kumhanya kwegasi kunofanirwa kunge kwakakwira kuitira kuti zvimedu zvibviswe uye zvinomiswa mukuyerera kwemhepo.Pakusarudza dilute chikamu chinotakura kana dense chikamu chinofambisa, chinogadzirwa zvinoenderana nekufambisa kuburitsa uye kuita kwehupfu.
Nguva yekutumira: Nov-22-2021