Graphite electrodes rau metallurgical kev lag luam
Feb 25, 2022
Muaj ntau yam khoom siv carbon, uas tau muab faib ua graphite electrodes, carbon blocks, graphite anodes, carbon electrodes, pastes, hluav taws xob carbons, thiab lwm yam. Carbon block, feem ntau hu ua carbon cib los yog hluav taws xob rauv thaiv, feem ntau yog siv hauv smelting. ntawm non-ferrous thiab non-ferrous hlau nrog rau calcium carbide thiab phosphorus tshuaj lag luam. Cov pa roj carbon monoxide tuaj yeem muab faib ua cov pa roj carbon monoxide blocks, aluminium carbon blocks, thiab hluav taws xob rauv hluav taws xob raws li lawv siv. Cov khoom siv carbon tuaj yeem muab faib ua cov khoom siv carbon, cov khoom siv graphite, carbon fiber thiab graphite fiber ntau raws li qhov ua tiav qhov tob. Txog tam sim no, cov khoom siv carbon feem ntau tseem yog graphite electrodes thiab carbon blocks.
1. Taw qhia txog graphite electrodes
1. Graphite electrode kev faib tawm thiab kev tsim khoom
Raws li qhov tso cai tam sim no ceev, graphite electrodes tuaj yeem muab faib uaregular zog graphite electrodes, siab zog electrodes, thiab ultra-siab zog electrodes. Cov graphite electrode yog tsim los ntawm cov roj av coke thiab rab koob coke ua cov khoom siv raw thiab cov thee tar pitch ua cov ntawv khi. Tus nqi yog rhuab kom yaj tus neeg xyuas pib.
Lub zog tsis tu ncua graphite electrode yog graphite electrode nrog qhov ceev tam sim no qis dua 17A / cm2, uas yog siv rau hauv cov hluav taws xob hluav taws xob zoo tib yam xws li steelmaking, silicon smelting, thiab daj phosphorus smelting.
High-power graphite electrodes yog graphite electrodes nrog tam sim no ceev ntawm 18 ~ 25A / cm2, uas yog tsuas yog siv nyob rau hauv high-power hluav taws xob arc rauv rau steelmaking.
Ultra-high-power graphite electrodes tso cai rau kev siv graphite electrodes nrog qhov ceev tam sim no ntau dua 25A / cm2, uas yog siv rau hauv ultra-high-power steelmaking electric arc furnaces.
2. Cov qauv kev tsom xam ntawm graphite electrode raw khoom
A. koob coke
Koob coke yog cov khoom siv zoo rau kev tsim khoomHPthiabUHPelectrodes. Graphite electrodes ua los ntawm koob coke muaj lub zog thermal poob siab tsis kam, siab mechanical zog, zoo oxidation kev ua tau zoo, tsawg electrode noj thiab siab tso cai tam sim no ceev, thiab lwm yam kom zoo dua.
Cov koob coke tam sim no tsim tau tuaj yeem muab faib ua ob pawg: roj av thiab thee raws li cov khoom siv raw. Koob coke ua los ntawm roj av residue li raw khoom yog roj-raws li koob coke; koob coke ua los ntawm cov thee tar suab thiab nws cov feem ntau raws li raw khoom yog coke-raws li koob coke. Ob rab koob coke txheej txheem ntau lawm tsis zoo ib yam, tab sis lawv cov kev siv yog tib yam.
Tam sim no, cov neeg tsim khoom tseem ceeb ntawm rab koob coke roj av yog Tebchaws Meskas, Tebchaws Askiv thiab Nyij Pooj. Coal-based koob coke feem ntau yog tsim nyob rau hauv Nyiv, thiab kev sib koom ua ke ntawm cov roj-raws li thiab thee-based koob coke tau tsim.
Tam sim no, thoob ntiaj teb cov zis ntawm koob coke yog kwv yees li 1.5 lab tons, thaum kuv lub teb chaws cov zis tsawg dua 100,000 tons. kuv lub teb chaws qhov kev thov txhua xyoo rau rab koob coke yog kwv yees li 400, 000 txog 500, 000 tons, feem ntau yog nyob ntawm kev xa khoom. Tam sim no, cov zis ntawm domesticUHPelectrodes yog txiav txim los ntawm qhov ntau ntawm koob coke.
B. Coal pitch
Raws li ib tug binder nyob rau hauv zus tau tej cov graphite electrodes, nws yog tsuas yog muab faib mus rau hauv nruab nrab kub suab thiab hloov suab. Nruab nrab-kub suab yog ib feem ntawm cov tar distillation residue, thiab cov txiaj ntsig nyiaj rau 54 ~ 56 feem pua ntawm cov tar. Hloov kho asphalt yog npaj los ntawm nruab nrab kub asphalt ua raw khoom.
C. Petroleum coke:
Siv raws li kev sib sau ua ke hauv kev tsim cov graphite electrodes.
Petroleum coke siv cov roj hnyav lossis lwm cov roj hnyav tom qab cov roj distillation ua raw khoom, thiab dhau los ntawm lub qhov cub hluav taws xob ntawm 500 degree cua sov rauv ntawm qhov siab txaus, kom tawg thiab condensation tshwm sim nyob rau hauv lub coke ntauwd, thiab ces lub coke yog txias rau ib lub sij hawm ntawm lub sij hawm, thiab ces lub coke raug tshem tawm. Coke tsim roj av coke.
Feem ntau coke yog siv los ua electrodes, insulating cov ntaub ntawv, silicon carbide thiab smelting industrial fuels. High-zoo coke feem ntau yog siv los ua graphite electrode rauHPthiabUHPsteelmaking. Tshwj xeeb coke yog raw khoom rau zus tau tej cov nuclear graphite casings rau reactors.
