Iyo poda impregnation inogadzirwa kubva kune fluidized bed process. MuWinkler gasi jenareta, mubhedha wakanyungudutswa wakatanga kushandiswa pakuparara kwepetroleum, uye ipapo gasi rakasimba-gasi-pase-phase contact process rakagadzirwa, uye zvishoma nezvishoma rinoshandiswa kune simbi coatings. Nokudaro, dzimwe nguva ichiri kunzi "fluidized bed coating method". Nzira chaiyo ndeyekuwedzera poda yakanandirwa pasi pegaba rinopinda mvura ine porous (flow trough), pinda mumhepo yakatsikirirwa kubva painofuridza, wozoigadzira kuti ishandure poda yekuputira kuita “fluidization” chinzvimbo.
Mubhedha wakanyungudutswa ndiyo nhanho yechipiri yekuyerera kwezvakaoma (yekutanga ndiyo nhanho yakagadziriswa yemubhedha, uye yechipiri ndiyo gasi kuyerera kwekuburitsa). Pamusoro pemubhedha wakagadziriswa, ramba uchiwedzera kuyerera (W), mubhedha unotanga kuwedzera uye kusunungura, uye urefu hwebhedha hunotanga kuwedzera. , Chimwe nechimwe chehupfu. E inoyangarara, nekudaro ichisiya chinzvimbo chepakutanga kuti iite imwe nhanho yekufamba. Wobva wapinda munhanho yemubhedha wemvura.
Chikamu BC chinoratidza kuti hupfu hwehupfu mumubhedha wemvura unowedzera, uye kureba kwayo (I) kunowedzera nekuwedzera kwegesi velocity, asi kumanikidzika pamubhedha hakuwedzere (ΔP). Iyo bhedha yakasvibiswa haizoshandure chiyero chekuyerera mukati meimwe nharaunda, uye haizokanganisa simba chairo rinodiwa nemvura. Ichi ndicho chimiro chemubhedha unoyerera, unoshandiswa pakupfekedza maitiro. Kufanana kweiyo fluidization state mumubhedha wemvura inoyerera ndiyo kiyi yekufanana kwejasi. Mubhedha wakanyungudika unoshandiswa pakuputira upfu ndewe "vertical fluidization". Nhamba ye fluidization inowanikwa kuburikidza nekuedza. Kazhinji, inogona kuvharwa. Kuturika kwehupfu mumubhedha wakasvibiswa kunogona kusvika 30% -50%.
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Nguva yekutumira: Aug-26-2020