Ntev npaum li cas nws siv stainless hlau kom decompose?

Cov siv stainless hlau reactoryog tsim los ntawm lub lauj kaub lub cev, lub lauj kaub npog, agitator, lub tsho, kev txhawb nqa thiab kis tau tus mob, ncej foob ntaus ntawv, thiab lwm yam.siv stainless hlau reactoryog ua los ntawm stainless hlau, yog li nws muaj qhov zoo ntawm qhov kub thiab txias tsis kam, corrosion kuj thiab kuj ntev kev pab cuam lub neej. Nws muaj ntau yam ntawm daim ntawv thov kev cia siab thiab kev lag luam xav tau hauv ntau qhov kev lag luam, nyob rau hauv tus txheej txheem ntawm kev yuav khoom thiab siv, nws yog ib qho tsim nyog yuav tsum nkag siab tag nrho cov yam ntxwv ntawm kev ua tau zoo ntawm cov cuab yeej siv, cov nqi lag luam thiab kev tu thiab tu cov txheej txheem los xyuas kom meej lub sijhawm ntev. kev ua haujlwm ntawm cov khoom siv thiab kev ua haujlwm zoo ntawm kev tsim khoom.

Peb muab cov khoom siv stainless hlau reactor, thov xa mus rau lub vev xaib hauv qab no kom paub meej cov lus qhia thiab cov ntaub ntawv khoom.
Khoom siv:https://www.achievechem.com/chemical-equipment/used-stainless-steel-reactor.html

Kev kho cua sov yog txheej txheem txheej txheem los hloov cov txheej txheem sab hauv ntawm cov khoom siv hlau los ntawm cov txheej txheem ntawm cov cua sov, rwb thaiv tsev thiab cua txias, kom tau txais cov khoom tsim nyog. Rau cov hlau tsis muaj steel, kev kho cua sov tuaj yeem tshem tawm cov teeb meem hauv lub koom haum, txhim kho lub koom haum, txhim kho cov khoom siv kho tshuab, txo qis kev ntxhov siab, thiab tuaj yeem hloov nws cov kev tiv thaiv corrosion, feem ntau hauv cov hauv qab no:

1. Cov hlau tsis muaj steel yog rhuab saum qhov kub thiab txias, kom nws tag nrho hloov mus rau hauv cov khoom siv austenite, thiab tom qab ntawd txias hauv huab cua. Normalizing tuaj yeem kho cov nplej thiab txhim kho lub zog thiab toughness ntawm stainless hlau.

2. Cov hlau tsis muaj steel yog rhuab saum qhov kub thiab txias, kom nws tag nrho hloov mus rau hauv cov khoom siv austenite, thiab tom qab ntawd txias hauv huab cua. Normalizing tuaj yeem kho cov nplej thiab txhim kho lub zog thiab toughness ntawm stainless hlau.

3. Cov hlau tsis muaj steel yog rhuab saum qhov kub thiab txias, kom nws tag nrho hloov mus rau hauv cov xim austenite, thiab tom qab ntawd txias lawm hauv huab cua. Normalizing tuaj yeem kho cov nplej thiab txhim kho lub zog thiab toughness ntawm stainless hlau.

4. Reheat lub quenched stainless hlau mus rau ib tug tej yam kub, thiab ces txias nws nrog ib tug tej yam txoj kev. Tempering tuaj yeem tshem tawm cov kev ntxhov siab sab hauv uas tsim los ntawm quenching, txo hardness thiab brittleness, thiab tau txais cov khoom uas xav tau. Raws li qhov sib txawv ntawm qhov kub thiab txias, tempering tuaj yeem muab faib ua qhov kub thiab txias, nruab nrab kub tempering thiab kub tempering.

Cov txheej txheem tshuaj feem ntau rau kev rhuav tshem cov hlau tsis huv

 

Concentrated sulfuric acid yog ib qho muaj zog oxidizing tus neeg sawv cev uas tuaj yeem hnov ​​​​mob nrog cov ntsiab lus hlau hauv stainless hlau los ua cov ntsev soluble, yog li yaj cov hlau tsis huv. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias cov concentrated sulfuric acid yog corrosive thiab txaus ntshai, thiab cov txheej txheem kev nyab xeeb yuav tsum tau ua nruj me ntsis thaum ua haujlwm. Tsis tas li ntawd, concentrated nitric acid kuj yog ib tug muaj zog corrosive neeg sawv cev, uas yuav ua kom puas lub nto tiv thaiv txheej ntawm stainless hlau, thiaj li hais tias nws maj mam yaj.

Ib yam li ntawd, yuav tsum tau saib xyuas tshwj xeeb thaum tuav cov concentrated nitric acid.

Tsis tas li ntawd, lwm yam tshuaj tuaj yeem siv rau decomposition. Piv txwv li, aqua regia, sib tov ntawm concentrated hydrochloric acid thiab concentrated nitric acid nyob rau hauv ib qho piv txwv (feem ntau 3: 1), yog heev corrosive thiab muaj peev xwm yaj ntau yam hlau, nrog rau cov hlau tsis muaj steel, tab sis kev siv cov aqua regia kuj yog. txaus ntshai heev thiab xav kom cov kws tshaj lij ua haujlwm raws li kev tswj hwm nruj. Qee zaum, cov tshuaj xws li ferric chloride tuaj yeem siv los rhuav tshem cov hlau tsis huv. Tab sis txoj kev no yuav siv sij hawm ntev dua thiab kub dua, thiab tej zaum yuav tsis zoo li siv cov kua qaub uas muaj zog.

 

 Kev npaj theem: Txiav txim siab hom thiab tus nqi ntawm cov hlau tsis huv uas yuav tsum tau ua kom tawg, xaiv cov tshuaj tsim nyog thiab cov tshuaj tiv thaiv cov hlab ntsha, xyuas kom meej tias qhov chaw ua haujlwm yog qhov cua zoo, thiab npaj cov khoom siv tiv thaiv kev nyab xeeb tsim nyog.

 Reaction theem: Muab cov hlau tsis huv rau hauv lub thawv tshuaj tiv thaiv, thiab ntxiv cov tshuaj lom neeg tsim nyog, raws li qhov xwm txheej ntawm cov tshuaj thiab hom stainless hlau, kho cov tshuaj tiv thaiv kub thiab sijhawm, hauv cov txheej txheem tshuaj tiv thaiv, qhov xav tau mus do tas li kom ntseeg tau tias cov tshuaj tiv thaiv tsis sib xws.

 Tom qab kev kho mob theem: Tom qab qhov kawg ntawm cov tshuaj tiv thaiv, cov tshuaj yog lim los yog centrifuged kom tshem tawm cov undissolved stainless hlau residue, thiab cov uas tau txais yog ntxiv kho, xws li neutralization, nag lossis daus, evaporation, thiab lwm yam. los yog cov tebchaw, thiab cov kua khib nyiab thiab cov pa tawm hauv cov txheej txheem kho mob yuav tsum tau kho raws li cov kev cai cuam tshuam kom tsis txhob muaj kuab paug rau ib puag ncig.