Raws li kev suav thiab txheeb cais, cov txheej txheem ceramic xuab zeb casting yuav tsum muaj qhov nruab nrab ntawm 0.6-1 tons ntawm coated xuab zeb (core) los tsim 1 tuj ntawm castings. Nyob rau hauv txoj kev no, kev kho cov xuab zeb siv tau dhau los ua qhov txuas tseem ceeb tshaj plaws hauv cov txheej txheem no. Qhov no tsis yog tsuas yog qhov yuav tsum tau txo cov nqi tsim khoom thiab txhim kho cov txiaj ntsig kev lag luam, tab sis kuj yog qhov yuav tsum tau txo qis emissions, paub txog kev lag luam ncig, nyob rau hauv kev sib raug zoo nrog ib puag ncig, thiab ua tiav txoj kev loj hlob.
Lub hom phiaj ntawm reclamation ntawm coated ceramic xuab zeb yog tshem tawm cov residual resin zaj duab xis coated rau saum npoo ntawm cov xuab zeb nplej, thiab tib lub sij hawm tshem tawm cov residual hlau thiab lwm yam impurities nyob rau hauv lub qub xuab zeb. Cov residues cuam tshuam rau lub zog thiab tawv ntawm cov coated ceramic xuab zeb reclaimed, thiab tib lub sij hawm nce cov roj tsim thiab qhov tshwm sim ntawm kev tsim cov khoom pov tseg. Cov kev xav tau zoo rau cov xuab zeb rov qab yog feem ntau: poob ntawm qhov hluav taws xob (LOI) < 0.3% (lossis tiam roj <0.5ml / g), thiab kev ua haujlwm ntawm cov xuab zeb rov qab ua tau raws li qhov ntsuas no tom qab txheej tsis txawv ntau ntawm cov xuab zeb tshiab.
Cov xuab zeb coated siv cov thermoplastic phenolic resin ua cov ntaub ntawv, thiab nws cov yeeb yaj kiab resin yog ib nrab tawv. Hauv txoj kev xav, ob qho tib si thermal thiab mechanical txoj kev tuaj yeem tshem tawm cov residual resin zaj duab xis. Thermal regeneration siv cov txheej txheem ntawm carbonization ntawm resin zaj duab xis ntawm qhov kub thiab txias, uas yog qhov txaus thiab siv tau zoo tshaj txoj kev tsim dua tshiab.
Hais txog cov txheej txheem thermal reclamation ntawm coated ceramic xuab zeb, cov koom haum tshawb fawb thiab qee lub tuam txhab tau ua ntau yam kev tshawb fawb. Tam sim no, cov txheej txheem hauv qab no nyiam siv. Qhov kub ntawm lub cub tawg yog 700 ° C-750 ° C, thiab xuab zeb kub yog 650 ° C-700 ° C. Txoj kev reclamation feem ntau yog:
(Vibration crushing) → sib nqus sib nqus → khib nyiab xuab zeb preheating → (lub thoob of elevator) → (ntsia hlau feeder) → reclaimed xuab zeb cia hopper → boiling kiv cua → boiling cooling txaj → plua plav tshem tawm → tub ntxhais xuab zeb hmoov → hopper nqa hoist → flue gas paug → khib nyiab xuab zeb thauj → fluidized roasting rauv → nruab nrab xuab zeb thoob → coated xuab zeb ntau lawm kab
Raws li deb raws li ceramic xuab zeb reclamation khoom muaj kev txhawj xeeb, thermal reclamation feem ntau yog siv. Cov khoom siv hluav taws xob muaj xws li hluav taws xob, roj, thee (coke), roj biomass, thiab lwm yam, thiab cov kev sib pauv cua sov muaj xws li hom kev sib cuag thiab cov cua kub npau npau. Ntxiv rau qee lub tuam txhab loj uas paub zoo nrog cov khoom siv rov ua dua tshiab, ntau lub tuam txhab me kuj muaj ntau yam khoom siv rov ua dua tshiab tsim los ntawm lawv tus kheej.
Post lub sij hawm: Aug-08-2023
