Cov yam ntxwv cuam tshuam rau Kev Pabcuam Lub Neej Ntawm Refractory Brick Lining hauv Gasifier

Cov yam ntxwv cuam tshuam rau lub neej kev pab cuam ntawm refractory cib hauv ob sab phlu hauv gasifier

Muaj ntau yam uas cuam tshuam rau lub neej kev pab cuam ntawm refractory cib hauv ob sab phlu hauv gasification furnaces. Hauv kev siv, cov ntsiab lus hauv qab no yuav tsum tau sau tseg:


1. Ua haujlwm kub

Qhov kub hauv qhov cub yog qhov tseem ceeb heev rau lub neej kev pab cuam ntawm refractory cib hauv ob sab phlu, yog li nws yuav tsum tau tswj nruj me ntsis kom tsis txhob siab tshaj qhov kub. Nyob rau hauv cov xwm txheej ntau lawm, muaj txheej txheej ntawm cov coal slag rau saum npoo ntawm refractory cib. Qhov tseeb, txheej slag yog dynamic, nrog ib txheej thicker ntawm qhov kub thiab txias thiab ib txheej nyias ntawm qhov kub thiab txias. Ib txheej txheej slag tuab zoo tuaj yeem ua kom qeeb ntawm kev yaig ntawm siab -kub gases thiab slag. Cov kev cai rau refractory bricks nyob rau hauv cov thee dej slurry gasification furnaces yog ntau dua li cov nyob rau hauv furnaces siv cov roj hnyav li raw khoom, feem ntau yog vim kev nkag mus thiab corrosion ntawm refractory cov ntaub ntawv los ntawm slag. Thaum hloov cov cib refractory, nws tau pom tias qhov infiltration thickness mus txog 10mm mus rau 20mm, thiab tom qab infiltration ntawm slag, nws lub zog txo qis. Kub kub exacerbates yaig. Raws li cov ntaub ntawv tseem ceeb, tshwj xeeb tshaj yog thaum lub sijhawm ua haujlwm kub tshaj 1400 degree, cov nyhuv etching nce exponentially.

Thaum lub sijhawm ua haujlwm, muaj cov piv txwv ntawm cov pa oxygen hloov pauv. Qee lub sij hawm cov pa regulating valve tuaj yeem ua rau muaj kev hloov pauv hauv cov pa oxygen, thiab qee zaum cov khoom loj tuaj yeem dheev thaiv qhov siab -siab thee slurry twj valve, ua rau muaj qhov txo qis hauv cov roj slurry ntws thiab ua rau cov pa ntau dhau. Kev hloov pauv ntawm cov pa ncaj qha ua rau muaj qhov hloov pauv hauv qhov cub kub, qee zaum muaj li ntawm 500m3 txog 600m3, thiab txog li ntawm 1000m3. Tom qab ib qho kev nce siab hauv cov pa oxygen, qhov kub ntawm lub cub tawg dheev nce siab, uas tuaj yeem kub hnyiab tau siab -kub thermocouples. Qhov xwm txheej no muaj kev cuam tshuam loj rau cov cib refractory thiab yuav tsum zam kom ntau li ntau tau.
Muab rau hauv tus account ntau yam, qhov kev khiav hauj lwm kub ntawm ib tug raug gasifier yuav tsum tau tswj hauv qab no 1350 degree. Thaum lub siab - kub thermocouple puas lawm los yog qhov taw qhia tsis raug, vim hais tias cov ntsiab lus methane hauv cov roj synthesis muaj feem xyuam rau qhov kub hauv qhov cub, feem ntau nws tuaj yeem tswj tau raws li cov ntsiab lus methane hauv qhov hluav taws xob roj. Hauv qhov xwm txheej no, hauv kev ua haujlwm, txhawm rau zam qhov sib txawv ntawm CH4 cov ntsiab lus txheeb xyuas, nws yuav tsum tsis tsuas yog saib cov ntsiab lus methane, tab sis kuj hloov pauv hauv H2, CO, CO2 thiab lwm yam khoom, nrog rau lwm yam kev tsim khoom xws li coal slurry concentration, refractory cib flow rate, oxygen flow rate, slag discharge, thiab lwm yam. los ntawm theoretical tswj kub.

2. Txo tus naj npawb ntawm pib nres cycles

Thaum lub sij hawm pib thiab nres, hloov lub burner yuav cia cov cua txias nkag mus rau hauv lub cub tawg, ua rau muaj kev hloov pauv ntawm lub cub tawg kub. Nyob rau lub sijhawm luv luv thaum lub sijhawm pub mis, qhov kub ntawm lub cub tawg tau nce sai, uas tseem nyuaj rau kev tswj. Cov xwm txheej no muaj kev phom sij heev rau cov cib refractory, thiab tej zaum yuav ua rau tawg thiab puas hauv cov refractory cib. Yog li ntawd, kev tsim khoom ruaj khov yuav tsum tau ua tiav ntau li ntau tau thaum lub sijhawm tsim khoom, thiab tus naj npawb ntawm kev pib thiab nres yuav tsum raug txo.