Tom qab ntau tshaj 80 xyoo ntawm txoj kev loj hlob, Tuam Tshoj txoj kev lag luam calcium carbide tau dhau los ua ib qho tseem ceeb ntawm kev lag luam raw khoom. Nyob rau hauv xyoo tas los no, tau tsav los ntawm kev loj hlob sai ntawm kev lag luam hauv tsev thiab kev xav tau ntau ntxiv rau calcium carbide downstream, cov khoom siv calcium carbide hauv tsev tau nthuav dav sai. Nyob rau hauv 2012, muaj 311 calcium carbide tuam txhab nyob rau hauv Tuam Tshoj, thiab cov zis mus txog 18 lab tons. Nyob rau hauv cov khoom siv ntawm calcium carbide rauv, cov electrode yog ib qho ntawm cov khoom tseem ceeb, uas plays lub luag hauj lwm ntawm conduction thiab tshav kub hloov. Hauv kev tsim cov calcium carbide, cov hluav taws xob tam sim no tau nkag mus rau hauv lub cub tawg los ntawm cov hluav taws xob los tsim cov arc, thiab cov cua sov thiab cov cua sov siv los tso tawm lub zog (kub txog li 2000 ° C) rau calcium carbide smelting. Kev ua haujlwm ib txwm ntawm cov electrode yog nyob ntawm cov yam ntxwv xws li qhov zoo ntawm cov khoom siv electrode, qhov zoo ntawm lub plhaub electrode, qhov vuam zoo, qhov ntev ntawm lub siab tso lub sij hawm, thiab qhov ntev ntawm cov electrode ua haujlwm. Thaum lub sij hawm siv cov electrode, theem kev khiav hauj lwm ntawm tus neeg teb xov tooj yog nruj heev. Kev ua haujlwm tsis tu ncua ntawm lub tshuab hluav taws xob tuaj yeem yooj yim ua rau muag muag thiab nyuaj ntawm lub electrode, cuam tshuam rau kev sib kis thiab hloov hluav taws xob hluav taws xob, ua rau lub tshuab hluav taws xob tsis zoo, thiab tseem ua rau muaj kev puas tsuaj rau cov tshuab thiab cov khoom siv hluav taws xob. Kev nyab xeeb ntawm tus neeg teb xov tooj lub neej. Piv txwv li, thaum lub Kaum Ib Hlis 7, 2006, ib qho hluav taws xob tawg tau tshwm sim ntawm cov nroj tsuag calcium carbide hauv Ningxia, ua rau 12 tus neeg ua haujlwm ntawm qhov chaw raug hlawv, suav nrog 1 tus neeg tuag thiab 9 tus raug mob hnyav. Xyoo 2009, kev tawg ntawm cov hluav taws xob nyuaj tau tshwm sim hauv cov nroj tsuag calcium carbide hauv Xinjiang, ua rau tsib tus neeg ua haujlwm ntawm qhov chaw raug hlawv.
Kev soj ntsuam ntawm qhov ua rau ntawm cov mos mos thiab tawv so ntawm calcium carbide rauv electrode
1.Ua rau kev soj ntsuam ntawm mos so ntawm calcium carbide rauv electrode
Lub sintering ceev ntawm cov electrode yog qis dua tus nqi noj. Tom qab lub tshuab hluav taws xob tsis siv hluav taws xob muab tso rau, nws yuav ua rau lub electrode tawg softly. Kev tsis khiav tawm ntawm tus neeg teb xov tooj cua sov lub sijhawm tuaj yeem ua rau kub hnyiab. Cov laj thawj tshwj xeeb rau electrode soft so yog:
1.1 Tsis zoo electrode paste zoo thiab ntau dhau volatiles.
1.2 Lub plhaub hlau electrode yog nyias lossis tuab heev. Nyias dhau los tiv thaiv lub zog loj sab nraud thiab kev tawg, ua rau lub tshuab hluav taws xob kom quav lossis xau thiab muag muag thaum nias; tuab heev ua rau lub plhaub hlau thiab cov tub ntxhais electrode tsis nyob ze rau ib leeg thiab cov tub ntxhais yuav ua rau Mos tawg.
1.3 Lub plhaub electrode hlau tsis zoo tsim los yog qhov vuam zoo tsis zoo, ua rau tawg, ua rau kom tawg lossis muag muag.
1.4 Lub electrode yog nias thiab muab tso rau ntau zaus, lub sijhawm luv luv, lossis cov electrode ntev dhau lawm, ua rau qhov muag muag.
1.5 Yog hais tias lub electrode paste tsis ntxiv rau lub sij hawm, lub electrode paste txoj hauj lwm siab dhau los yog qis dhau, uas yuav ua rau cov electrode tawg.
1.6 Lub electrode paste loj dhau, tsis tu ncua thaum ntxiv cov muab tshuaj txhuam, so ntawm cov tav thiab nyob rau saum taub hau, tuaj yeem ua rau muag muag.
1.7 Cov electrode tsis sintered zoo. Thaum cov electrode txo qis thiab tom qab nws txo qis, qhov tam sim no tsis tuaj yeem tswj tau zoo, kom qhov tam sim no loj dhau, thiab cov ntaub ntawv electrode raug hlawv thiab cov electrode yog softly tawg.
1.8 Thaum cov electrode txo qis nrawm dua li qhov ceev ntawm sintering, ntu pasting nyob rau hauv cov duab raug nthuav tawm, los yog cov ntsiab lus conductive yuav raug nthuav tawm, cov ntaub ntawv electrode bears tag nrho tam sim no thiab ua kom muaj cua sov ntau. Thaum cov ntaub ntawv electrode tau kub siab tshaj 1200 ° C, lub zog tensile raug txo kom tsis tuaj yeem dais qhov hnyav ntawm electrode, kev sib tsoo mos yuav tshwm sim.
2.Ua rau kev tsom xam ntawm qhov nyuaj ntawm calcium carbide rauv electrode
Thaum cov electrode puas lawm, yog tias cov calcium carbide molten yog splashed, tus neeg teb xov tooj tsis muaj kev tiv thaiv kev tiv thaiv thiab tsis khiav tawm hauv lub sijhawm yuav ua rau kub hnyiab. Cov laj thawj tshwj xeeb rau lub zog tawg ntawm electrode yog:
2.1 Lub electrode paste feem ntau tsis zoo khaws cia, cov hmoov tshauv yog siab dhau lawm, ntau impurities yog entrained, electrode paste muaj me ntsis volatile teeb meem, sintering ntxov ntxov los yog tsis zoo adhesion, ua rau lub electrode nyuaj.
2.2 Qhov sib txawv electrode paste ratios, me me binder ratio, sib tov tsis sib xws, tsis zoo electrode zog, thiab tsis haum binder. Tom qab cov electrode muab tshuaj yog yaj, lub thickness ntawm cov khoom yuav delaminate, uas txo cov electrode zog thiab yuav ua rau cov electrode tawg.
2.3 Muaj ntau lub zog hluav taws xob, thiab cov khoom siv hluav taws xob feem ntau nres thiab qhib. Nyob rau hauv cov ntaub ntawv ntawm lub hwj chim tsis ua hauj lwm, kev ntsuas tsim nyog tsis tau ua, ua rau electrode tawg thiab sintering.
2.4 Muaj ntau cov plua plav poob rau hauv lub plhaub electrode, tshwj xeeb tshaj yog tom qab lub sijhawm ntev ntawm kev kaw, ib txheej tuab ntawm cov hmoov tshauv yuav ntim rau hauv lub plhaub electrode hlau. Yog tias nws tsis raug ntxuav tom qab xa hluav taws xob, nws yuav ua rau electrode sintering thiab delamination, uas yuav ua rau Electrode nyuaj.
2.5 Lub sij hawm tsis ua hauj lwm ntawm lub hwj chim yog ntev, thiab cov electrode ua hauj lwm seem tsis faus rau hauv tus nqi thiab oxidized hnyav, uas yuav ua rau cov electrode nyuaj.
2.6 Cov electrodes yuav tsum tau ua kom txias thiab cua sov sai, ua rau muaj kev ntxhov siab loj hauv qhov sib txawv; Piv txwv li, qhov kub ntawm qhov sib txawv ntawm cov electrodes tso rau hauv thiab sab nraum cov khoom thaum lub sij hawm tu; qhov kub ntawm qhov sib txawv ntawm sab hauv thiab sab nraud ntawm cov khoom sib txuas yog loj; Cov cua sov tsis sib xws thaum lub sijhawm xa hluav taws xob tuaj yeem ua rau Nyuaj tawg.
2.7 Lub sijhawm ua haujlwm ntawm lub tshuab electrode ntev dhau lawm thiab lub zog rub tawm yog qhov loj heev, uas yog lub nra ntawm lub electrode nws tus kheej. Yog tias kev ua haujlwm tsis tu ncua, nws kuj tuaj yeem ua rau lub zog tawg.
2.8 Cov cua nkag los ntawm lub raj electrode yog me me los yog nres, thiab cov dej txias me me dhau, uas ua rau cov electrode muab tshuaj txhuam kom yaj ntau dhau thiab dhau los ua dej, ua rau cov khoom siv carbon feem ntau los nag, cuam tshuam. Lub zog sintering ntawm cov electrode, thiab ua rau cov electrode nyuaj tawg.
2.9 Lub electrode tam sim no ceev yog loj, uas tuaj yeem ua rau cov electrode nyuaj.
Countermeasures kom tsis txhob mos thiab tawv electrode so
1.Cov kev ntsuas kom tsis txhob muaj kev sib tsoo ntawm calcium carbide rauv
1.1 Tswj kev ua haujlwm ntev ntawm cov electrode kom ua tau raws li cov kev cai ntawm calcium carbide ntau lawm.
1.2 Qhov qis qis yuav tsum tau sib haum nrog cov electrode sintering ceev.
1.3 Tsis tu ncua xyuas cov electrode ntev thiab cov txheej txheem mos thiab tawv; Koj tuaj yeem siv lub steel bar los khaws cov electrode thiab mloog lub suab. Yog tias koj hnov ib lub suab nkig heev, nws ua pov thawj tias yog ib qho hluav taws xob paub tab. Yog hais tias nws tsis yog lub suab nkig heev, lub electrode yog mos heev. Tsis tas li ntawd, qhov kev xav kuj txawv. Yog hais tias lub steel bar tsis hnov lub resilience thaum nws yog ntxiv dag zog, nws ua pov thawj tias cov electrode yog mos thiab lub load yuav tsum tau tsa maj mam.
1.4 Tsis tu ncua xyuas qhov kev loj hlob ntawm cov electrode (koj tuaj yeem txiav txim qhov xwm txheej ntawm electrode los ntawm kev paub, xws li cov electrode zoo uas pom cov tawv nqaij liab me ntsis hlau; cov electrode yog dawb, nrog cov kab nrib pleb, thiab cov tawv nqaij hlau tsis pom, nws qhuav dhau lawm, lub electrode emits dub pa luam yeeb, dub, Dawb point, electrode zoo yog mos).
1.5 Tsis tu ncua xyuas qhov vuam zoo ntawm lub plhaub electrode, ib ntu rau txhua qhov vuam, thiab ib ntu rau kev tshuaj xyuas.
1.6 Tsis tu ncua xyuas qhov zoo ntawm cov electrode muab tshuaj.
1.7 Thaum lub sij hawm lub hwj chim-up thiab load-up lub sij hawm, lub load yuav tsis tau nce ceev heev. Lub load yuav tsum tau nce raws li kev loj hlob ntawm cov electrode.
1.8 Tsis tu ncua xyuas seb lub clamping quab yuam ntawm lub electrode tiv tauj cov khoom tsim nyog.
1.9 Tsis tu ncua ntsuas qhov siab ntawm cov electrode paste kem, tsis siab dhau.
1.10 Cov neeg ua haujlwm ua haujlwm kub yuav tsum hnav cov khoom tiv thaiv tus kheej uas tiv taus qhov kub thiab txias.
2.Cov kev ntsuas kom tsis txhob nyuaj ntawm calcium carbide rauv electrode
2.1 nruj me ntsis tuav lub sijhawm ua haujlwm ntawm cov electrode. Cov electrode yuav tsum tau ntsuas txhua ob hnub thiab yuav tsum yog qhov tseeb. Feem ntau, kev ua haujlwm ntev ntawm cov electrode tau lees tias yog 1800-2000mm. Tsis pub ntev los yog luv dhau.
2.2 Yog hais tias lub electrode ntev dhau lawm, koj tuaj yeem ncua lub sij hawm tso tawm lub siab thiab txo qhov piv ntawm cov electrode nyob rau theem no.
2.3 nruj me ntsis xyuas qhov zoo ntawm cov electrode paste. Cov ntsiab lus tshauv tsis tuaj yeem tshaj tus nqi teev tseg.
2.4 Ua tib zoo xyuas cov huab cua ntawm cov khoom siv hluav taws xob thiab lub iav qhov chaw ntawm lub tshuab cua sov.
2.5 Tom qab lub hwj chim tsis ua hauj lwm, lub electrode yuav tsum tau khaws cia kom kub li sai tau. Cov electrode yuav tsum tau faus nrog cov khoom siv los tiv thaiv cov electrode los ntawm oxidizing. Lub load tsis tuaj yeem tsa tau sai heev tom qab xa hluav taws xob. Thaum lub sijhawm fais fab tsis ua haujlwm ntev, hloov mus rau Y-hom hluav taws xob preheating electrode.
2.6 Yog hais tias lub electrode nyuaj lov ob peb zaug ua ke, nws yuav tsum tau xyuas seb qhov zoo ntawm cov electrode muab tshuaj yog raws li tus txheej txheem yuav tsum tau.
2.7 Lub tshuab hluav taws xob tom qab muab tshuaj txhuam yuav tsum tau npog nrog lub hau kom tsis txhob muaj plua plav poob rau hauv.
2.8 Cov neeg ua haujlwm ua haujlwm kub yuav tsum hnav cov khoom tiv thaiv tus kheej uas tiv taus qhov kub thiab txias.
nyob rau hauv xaus
Kev tsim cov calcium carbide yuav tsum muaj kev paub ntau lawm. Txhua lub qhov cub calcium carbide muaj nws tus yam ntxwv rau lub sijhawm. Lub tuam txhab yuav tsum sau cov ntsiab lus muaj txiaj ntsig zoo hauv cov txheej txheem tsim khoom, ntxiv dag zog rau kev nqis peev hauv kev nyab xeeb kev tsim khoom, thiab ua tib zoo txheeb xyuas qhov kev pheej hmoo ntawm cov mos thiab tawv tawg ntawm calcium carbide rauv electrode. Electrode kev tswj hwm kev nyab xeeb, cov txheej txheem ua haujlwm kom ntxaws, ntxiv dag zog rau kev cob qhia cov neeg ua haujlwm, hnav cov ntaub ntawv tiv thaiv nruj raws li qhov yuav tsum tau ua, npaj cov phiaj xwm xwm txheej kub ntxhov thiab cov phiaj xwm kev cob qhia thaum muaj xwm txheej ceev, thiab ua ib qho kev tawm dag zog kom zoo los tswj qhov tshwm sim ntawm calcium carbide furnace kev sib tsoo thiab txo kev sib tsoo. poob.
Post lub sij hawm: Dec-24-2019