Kev lag luam graphite electrode, uas tau poob rau xyoo tas los, tau ua qhov hloov pauv loj rau xyoo no.
"Nyob rau hauv thawj ib nrab ntawm lub xyoo, peb graphite electrodes tau pib nyob rau hauv luv luv khoom." Raws li kev lag luam sib txawv xyoo no yog kwv yees li 100,000 tons, nws xav tias qhov kev sib raug zoo ntawm cov khoom siv thiab kev thov yuav txuas ntxiv mus.
Nws tau nkag siab tias txij li lub Ib Hlis xyoo no, tus nqi ntawm graphite electrode tau nce tsis tu ncua, txij li ntawm 18,000 yuan / ton thaum pib ntawm lub xyoo mus txog 64,000 yuan / tuj tam sim no, nrog nce ntawm 256%. Nyob rau tib lub sijhawm, koob coke, raws li cov khoom siv tseem ceeb tshaj plaws ntawm graphite electrode, tau dhau los ua cov khoom tsis txaus, thiab nws cov nqi tau nce txhua txoj hauv kev, uas tau nce ntau dua 300% piv nrog rau thaum pib ntawm lub xyoo.
Kev thov ntawm downstream steel tuam txhab muaj zog
Graphite electrode feem ntau yog ua los ntawm roj av coke thiab rab koob coke ua raw cov ntaub ntawv thiab thee tar pitch li binder, thiab yog tsuas yog siv nyob rau hauv arc steelmaking rauv, submerged arc rauv, kuj rauv, thiab lwm yam. Cov graphite electrode rau steelmaking account rau txog 70% 80% ntawm tag nrho kev siv graphite electrode.
Xyoo 2016, vim yog kev poob qis hauv EAF steelmaking, tag nrho kev ua haujlwm ntawm cov tuam txhab carbon tau poob qis. Raws li kev txheeb cais, tag nrho cov muag khoom ntim ntawm graphite electrodes hauv Suav teb poob los ntawm 4.59% xyoo-rau-xyoo xyoo 2016, thiab tag nrho cov poob ntawm kaum sab saum toj graphite electrode tuam txhab yog 222 lab yuan. Txhua lub tuam txhab carbon tau sib ntaus sib tua tus nqi kom nws txoj kev lag luam sib koom, thiab tus nqi muag khoom ntawm graphite electrode yog qis dua tus nqi.
Qhov xwm txheej no tau thim rov qab rau xyoo no. Nrog rau kev sib sib zog nqus ntawm kev hloov pauv ntawm cov khoom siv sab nraud, kev lag luam hlau thiab hlau txuas ntxiv tuaj tos, thiab "strip steel" thiab nruab nrab zaus furnaces tau raug ntxuav kom huv thiab kho nyob rau hauv ntau qhov chaw, qhov kev thov rau hluav taws xob furnaces hauv steel tuam txhab tau nce. sharply, yog li tsav qhov kev thov rau graphite electrodes, nrog rau kwv yees txhua xyoo thov ntawm 600,000 tons.
Tam sim no, muaj ntau tshaj 40 tuam txhab uas muag nrog graphite electrode muaj peev xwm ntau tshaj 10,000 tons nyob rau hauv Tuam Tshoj, nrog tag nrho cov muaj peev xwm ntawm txog 1.1 lab tons. Txawm li cas los xij, vim muaj kev cuam tshuam ntawm cov neeg soj ntsuam kev tiv thaiv ib puag ncig xyoo no, graphite electrode ntau lawm cov tuam txhab hauv Hebei, Shandong thiab Henan xeev nyob rau hauv lub xeev ntawm kev txwv ntau lawm thiab raug ncua, thiab txhua xyoo graphite electrode ntau lawm yog kwv yees li ntawm 500,000 tons.
"Kev lag luam sib txawv ntawm txog 100,000 tons tsis tuaj yeem daws tau los ntawm cov tuam txhab ua kom muaj peev xwm ntau lawm." Ning Qingcai tau hais tias lub voj voog ntawm cov khoom lag luam graphite electrode feem ntau yog ntau tshaj li ob lossis peb lub hlis, thiab nrog rau lub voj voog ntawm cov khoom lag luam, nws yog qhov nyuaj rau kev nce ntim hauv lub sijhawm luv.
Cov tuam txhab carbon tau txo qis kev tsim khoom thiab kaw, tab sis qhov kev thov ntawm cov tuam txhab steel yog nce, uas ua rau graphite electrode ua cov khoom lag luam nruj hauv khw, thiab nws cov nqi tau nce txhua txoj kev. Tam sim no, tus nqi lag luam tau nce 2.5 npaug piv rau lub Ib Hlis xyoo no. Qee lub tuam txhab steel yuav tsum tau them ua ntej kom tau txais cov khoom.
Raws li kev lag luam sab hauv, piv nrog rau qhov cub tawg, hluav taws xob rauv hlau yog ntau zog-txuag, ib puag ncig-phooj ywg thiab qis-carbon. Nrog Tuam Tshoj nkag mus rau lub voj voog qis qis, hluav taws xob rauv hlau yuav ua tiav kev txhim kho ntau dua. Nws tau kwv yees tias nws qhov kev faib ua feem hauv tag nrho cov khoom siv hlau yuav tsum nce los ntawm 6% hauv 2016 txog 30% hauv 2030, thiab qhov kev thov rau graphite electrodes tseem loj nyob rau yav tom ntej.
Tus nqi nce ntawm cov khoom siv raw khoom tsis txo qis
Tus nqi nce ntawm graphite electrode tau xa mus sai sai rau cov dej ntws ntawm cov saw hlau. Txij li thaum pib ntawm lub xyoo no, tus nqi ntawm cov khoom tseem ceeb rau cov pa roj carbon ntau lawm, xws li roj av coke, thee tar pitch, calcined coke thiab koob coke, tau nce tsis tu ncua, nrog qhov nruab nrab nce ntau dua 100%.
Tus thawj coj ntawm peb lub chaw yuav khoom tau piav qhia tias nws yog "saring". Raws li tus neeg saib xyuas, raws li kev txhim kho kev ua lag luam ua ntej kev txiav txim siab, lub tuam txhab tau siv cov kev ntsuas xws li kev yuav khoom ntawm tus nqi qis thiab nce cov khoom muag los tiv thaiv tus nqi nce thiab xyuas kom ntau lawm, tab sis qhov nce siab ntawm cov khoom siv raw khoom. deb tshaj qhov kev cia siab.
Ntawm cov khoom nyoos nce ntxiv, rab koob coke, raws li cov khoom siv tseem ceeb ntawm graphite electrode, muaj tus nqi loj tshaj plaws, nrog rau tus nqi siab tshaj plaws nce 67% hauv ib hnub thiab ntau dua 300% hauv ib nrab xyoo. Nws paub tias koob coke tso nyiaj rau ntau tshaj 70% ntawm tag nrho cov nqi ntawm graphite electrode, thiab cov khoom siv raw ntawm ultra-siab zog graphite electrode yog tag nrho ntawm koob coke, uas siv 1.05 tons ib tuj ntawm ultra-siab zog graphite. electrode.
Koob coke kuj tseem siv tau rau hauv cov roj teeb lithium, nuclear fais fab, aerospace thiab lwm yam. Nws yog cov khoom lag luam tsawg nyob hauv tsev thiab txawv teb chaws, thiab feem ntau nws nyob ntawm kev xa khoom hauv Suav teb, thiab nws cov nqi tseem siab. Txhawm rau kom ntseeg tau tias kev tsim khoom, graphite electrode tuam txhab lag luam snapped ib qho tom qab lwm tus, uas coj mus rau qhov nce ntxiv ntawm tus nqi coke.
Nws tau nkag siab tias muaj ob peb lub lag luam tsim koob coke hauv Suav teb, thiab cov neeg hauv kev lag luam ntseeg tias tus nqi nce zoo li lub suab nrov. Txawm hais tias cov txiaj ntsig ntawm qee cov khoom lag luam raw khoom tau txhim kho zoo heev, kev ua lag luam pheej hmoo thiab cov nqi khiav lag luam ntawm cov lag luam qis qis tau nce ntxiv.
Post lub sij hawm: Jan-25-2021