Cov pa roj carbon dub reactor muab faib ua tsib qhov loj hauv ob sab phlu: combustion chamber, caj pas, seem tshuaj tiv thaiv, seem quenching, thiab seem tuav.
Cov roj ntawm cov roj carbon dub reactor feem ntau yog cov roj hnyav, thiab cov khoom siv raw siv yog hydrocarbons. Thaum lub sij hawm tsim cov pa roj carbon dub, cov huab cua ntawm cov roj combustion nyob rau hauv lub reactor yog complex, raw cov ntaub ntawv yog thermally decomposed, cov tshuaj tsuag ntawm txias carbon dub, thiab cov khoom tsim los ntawm thermal decomposition ntawm roj thiab raw cov ntaub ntawv yuav tsim ntau yam kev cuam tshuam lub cev. nrog rau refractory bricks siv rau hauv ob sab phlu.
1. Cov kev xav tau rau kev xaiv cov khoom siv hluav taws xob refractory
Kev khiav hauj lwm kub ntawm lub reactor hauv ob sab phlu tuaj yeem ncav cuag 1600 ~ 1700 degree, thiab qhov ceev ntawm cov cua kub ntws hauv lub cub tawg yog ceev ceev. Qhov kub ntawm qhov kawg ntawm lub caj pas yog siab tshaj 1700 degree, thiab kuj tseem muaj cua ntws tawm. Qee qhov chaw kub kub txawm tias siab li 1900 degree. Qee lub sij hawm lub cub tawg raug kaw thiab cov khoom sib txawv raug hloov vim yog kev ua haujlwm, thiab cov dej vapor hauv huab cua yuav nkag mus rau hauv lub qhov cub hauv ob sab phlu thiab tshuab cov kav dej.
Lub complex huab cua ntawm lub reactor hauv ob sab phlu yuav ua rau cov refractory cib ntawm lub hauv ob sab phlu raug tawm tsam los ntawm thermal stress thiab ua rau tev. Tsis tas li ntawd, cov tshauv tsim tom qab pyrolysis ntawm cov roj thiab cov ntaub ntawv raw kuj muaj kev yaig zoo thiab kev puas tsuaj rau cov refractories cib.
Yog li ntawd, cov hluav taws kub refractory cib siv rau hauv ob sab phlu ntawm cov pa roj carbon dub reactor yuav tsum muaj siab refractoriness, zoo thermal shock stability, siab ntim ceev, thiab porosity tsawg. Lawv kuj yuav tsum tau tiv taus kub corrosion thiab muaj zog yaig los ntawm airflow.
2. Feem ntau siv refractories cib
Lub refractory firebricks feem ntau siv nyob rau hauv ob sab phlu ntawm cov pa roj carbon dub reactor muab faib uaalumina silica cib, corundum cib, chrome corundum cib thiab zirconium refractory firebricks. Alumina silica cib muaj xws li siab alumina, mullite, corundum cib, thiab lwm yam.; chrome corundum cib yog cov khoom sib xyaw refractories cib uas muaj cov chromium sib txawv thiab sintered ntawm qhov kub thiab txias, thiab zirconium cib suav nrog chrome corundum khoom thiab cib uas muaj zirconium oxide.
3. Ntau hom refractory cib ntawm qhov kub thiab txias
Tseem muaj cov pa roj carbon dub reactor linings uas siv silicon carbide composite cib rau masonry, thiab tsis tshua muaj kub qhov chaw yuav siv high alumina bricks los yog av nplaum cib rau masonry. Nyob rau hauv qhov kub ntawm 1550 ~ 1750 degree, corundum mullite yog ua ke nrog refractory hluav taws cib. Nyob rau hauv qhov chaw uas qhov chaw txias txias tsis tshaj 1300 degree, high-alumina cib nrog cov ntsiab lus txhuas ntawm 65-70% yog siv rau masonry. Nyob rau hauv qhov chaw uas qhov kub thiab txias yog 1750 ~ 1925 degree, chrome corundum bricks nrog thermal shock kuj yog siv rau masonry.
Nyob rau hauv luv luv, sib txawv refractory hluav taws cib ntawm cov ntaub ntawv sib txawv yog siv nyob rau hauv sib txawv kub qhov chaw, yog li ntawd txawm tias tus nqi ntau lawm yog txo, kev siv cov kev xav tau ntawm lub qhov cub hauv ob sab phlu tuaj yeem ua tau.
