Cov txheej txheem kho rau cov hmoov av graphite thiab cov electrodes pov tseg yog dab tsi?

Cov Txheej Txheem Kho Mob Rau Cov Pluag Graphite Thiab Cov Hluav Taws Xob Pov Tseg

I. Kev Kho Mob Plua Plav Graphite: Kev Sib Koom Tes Ntau Yam Technology Rau Kev Tswj Xyuas Zoo

1. Kev Tswj Xyuas Qhov Chaw thiab Kev Ntxig Cov Txuj Ci

• Cov Txheej Txheem Kaw thiab Cov Hau Kaw: Nruab cov hau kaw ntawm cov chaw tseem ceeb uas tsim cov plua plav (piv txwv li, tsoo, tshuaj ntsuam, xa khoom) ua ke nrog cov lim hnab ua haujlwm zoo (piv txwv li, cov khoom siv electrostatic-bag composite dust collectors). Qhov no txo ​​qhov concentration ntawm cov plua plav los ntawm 2,000–3,000 mg/m³ mus rau qhov concentration ntawm 20–30 mg/m³, ua tiav 99% kev tshem tawm plua plav zoo.
• Cov Khoom Siv Tshem Tawm Pluav Plua Plav Uas Tsis Tawg: Vim tias cov hmoov av graphite muaj zog thiab nws yooj yim rau hluav taws, siv cov khoom sau plua plav uas tsis tawg (piv txwv li, cov khoom sib cais cua daj cua dub ua ke nrog cov lim hnab uas tsis tawg) los txo qhov kev pheej hmoo ntawm kev tawg thaum sib xyaw nrog cov khoom siv uas kub hnyiab tau.
• Cov Txheej Txheem Sau Cov Pluag Mov Uas Nqus Tau: Siv cov tshuaj tsuag uas muaj dej los ua kom cov hmoov av poob, uas haum rau cov cuab yeej siv. Lus Cim: Xyuas kom cov khoom siv electrode qhuav (piv txwv li, 60–80°C hauv lub qhov cub convection rau 1 teev) kom tiv thaiv kev ua qias tuaj ntawm cov roj dielectric.

2. Kev Ntxuav Cua thiab Kev Tswj Xyuas Pa Tawm

• Cov Txheej Txheem Ua Kom Huv Si Ntau Theem: Txias cov pa tawm kub siab los ntawm cov khoom sib pauv cua sov, tom qab ntawd dhau nws los ntawm lub tshuab cais cua daj cua dub (rau cov khoom loj), lub tshuab ntxuav alkaline (kom tshem tawm cov pa roj acidic), thiab lub pej thuam adsorption carbon activated (rau kev tshem tawm VOC). Kev tso tawm zaum kawg tshwm sim los ntawm 15-meter pa tawm, xyuas kom ua raws liCov Txheej Txheem Tso Pa Phem Rau Cov Chaw Dav Dav(GB 16297-1996).
• Kev Soj Ntsuam thiab Kev Txhim Kho Hauv Online: Nruab cov sensors rau cov khoom me me thiab VOC concentration kom kho cov kev ntsuas xws li pH ntawm cov tshuaj ntxuav thiab cov sijhawm hloov cov pa roj carbon activated, tswj cov pa phem hauv qab 120 mg/m³.

3. Kev Tswj Xyuas Pab Txhawb

• Kev Ua Kom Cov Khoom Siv noo: Siv cov tshuaj tiv thaiv plua plav (piv txwv li, cov kua polyacrylamide) rau cov chaw khaws cov hlau thiab cov pas dej tailings, tswj cov av noo ntawm 6-8% kom txo cov plua plav uas khiav tawm.
• Kev Txij Nkawm Khoom Siv thiab Kev Tiv Thaiv Cov Neeg Ua Haujlwm: Ntxuav cov hnab lim dej tas li, tshuaj xyuas cov foob ntawm cov kav dej, thiab muab cov neeg ua haujlwm nrog cov ntaub npog N95 thiab cov khaub ncaws tiv taus plua plav kom txo qis kev raug mob hauv chaw ua haujlwm.

II. Kev Kho Mob Graphite Electrode Pov Tseg: Kev Sib Npaug ntawm Kev Rov Qab Tau Cov Khoom Siv thiab Kev Pov Tseg Ib puag ncig

1. Kev kho mob ua ntej lub cev

• Kev Cais thiab Kev Ntxuav: Faib cov electrodes raws li hom (piv txwv li, lub zog ib txwm, lub zog siab), tshem tawm cov roj ntawm qhov chaw thiab cov hlau tsis huv, thiab ntxuav siv cov tshuab ultrasonic (40 kHz zaus) rau 10-15 feeb.
• Kev Sib Tsoo thiab Kev Tshuaj Xyuas: Siv cov tshuab zom cov hlau kom txo cov electrodes kom txog ≤50 mm cov khoom me me, tom qab ntawd lim los ntawm kev siv cov ntxaij vab tshaus vibrating. Khaws cov khoom me me 5–50 mm rau kev tsim cov electrode rov ua dua tshiab.

2. Kev Ntxuav Tshuaj thiab Kev Tsim Kho Dua Tshiab

• Kev Ua Graphitization Kub Siab: Ua kom cov khoom me me kub hauv lub cub tawg graphitization ntawm 2,800–3,000°C rau 4–6 teev kom tshem tawm cov khoom tsis huv (piv txwv li, sulfur, nitrogen), ua kom cov pa roj carbon ruaj khov nce mus txog ≥99.5%.
• Kev Tshem Tawm Cov Kua Txob Uas Muaj Acid: Muab cov khoom me me uas raug tsoo tso rau hauv 15–20% hydrochloric acid ntawm 80–90°C rau 2 teev kom tshem tawm cov txhuas, hlau, thiab lwm yam hlau uas tsis muaj zog. Ua kom cov dej lim tsis muaj zog ua ntej tso tawm.

3. Kev Siv Rov Qab Tshwj Xeeb ntawm Alloy Electrode

• Kev Sib Cais Platinum-Iridium Electrode: Rau cov electrodes kho mob uas muaj platinum-iridium alloys, yaj platinum hauv aqua regia (80 ° C rau 3 teev). Rho tawm iridium ntawm molten ntsev electrolysis (NaCl-KCl system ntawm 700 ° C) thiab ua kom ob qho tib si huv si txog 99.99% siv thaj chaw yaj.
• Kev Tsim Kho Dua Tshiab ntawm Cov Hluav Taws Xob Uas Muaj Tooj Liab: Tsoo cov hluav taws xob tooj liab-graphite pov tseg, cais cov graphite (qhov ceev: 1.8–2.1 g/cm³) thiab hmoov tooj liab (qhov ceev: 8.9 g/cm³) los ntawm kev ua kom sov, thiab ua kom cov hmoov tooj liab ua cov tooj liab huv si los ntawm kev siv hluav taws xob (qhov ceev tam sim no: 200 A/m²).

III. Kev Tshawb Fawb Txog Kev Lag Luam thiab Kev Tshawb Fawb Txog Kev Lag Luam

1. Kev Sib Piv Tus Nqi-Cov Txiaj Ntsig

• Cov Lim Hnab: Kev nqis peev thawj zaug: ~ ¥ 500,000; tus nqi ua haujlwm: ¥ 0.2 / m³ ntawm cov pa tawm. Haum rau cov lag luam loj graphite electrode (cov pa tawm txhua xyoo ≥100,000 m³).
• Cov Txheej Txheem Sau Cov Pluas Hmab Ntub: Kev nqis peev rau cov khoom siv: ¥200,000; tus nqi tshuaj ua los ntawm dej: ¥0.5/tuj ntawm cov dej khib nyiab. Zoo tagnrho rau cov chaw ua haujlwm me mus rau nruab nrab.
• Kev Rov Tsim Dua Cov Hluav Taws Xob Pov Tseg: Txhua tuj yuav tau 850 kg graphite (tus nqi ¥3,000) thiab 150 kg hlau (tus nqi ¥5,000), ua rau tau tag nrho ¥8,000 cov nyiaj tau los. Lub sijhawm them rov qab rau kev nqis peev: 1.5–2 xyoos.

2. Kev Kawm Txog Kev Lag Luam

• Lub Tuam Txhab Graphite Electrode Ua Lag Luam: Tau txais yuav lub kaw lus "静电袋式除尘器 (lub lim dej electrostatic) + lub pej thuam adsorption carbon activated", txo cov pa phem ntawm 2,000 mg / m³ mus rau 15 mg / m³ thiab ua tiav 95% VOC tshem tawm. Cov nqi nplua ib puag ncig txhua xyoo raug txo los ntawm ¥ 2 lab.
• Lub Hoobkas Rov Siv Dua Cov Hluav Taws Xob Kho Mob: Rov qab tau cov hlau platinum-iridium kom huv si txog 99.99% los ntawm kev siv cov ntsev electrolysis uas yaj, siv ncaj qha rau hauv kev tsim cov tshuab pacemaker. Txuag tau ¥ 1.2 lab ib tuj ntawm cov hluav taws xob pov tseg hauv cov nqi khoom siv raw.

IV. Txoj Cai thiab Cov Lus Qhia Txog Kev Cai Lij Choj

• Cov Qauv Kev Tso Pa Tawm: Ua raws liCov Txheej Txheem Tso Tawm Cov Pa phem ntawm Kev Lag Luam Graphite(GB 31573-2015), yuam kom muaj cov pa phem tsawg dua ≤30 mg/m³ thiab VOCs tsawg dua ≤100 mg/m³.
• Cov Nyiaj Txhawb Nqa Rov Qab Tau Cov Khoom Siv: Txhawb kom siv covCov Lus Qhia Txog Kev Siv Cov Khoom Siv Graphite Electrodes Rov Qab Siv Dua(GB/T 35164-2017) nrog rau cov nyiaj pab them se (piv txwv li, 70% VAT rov qab rau cov khoom graphite rov ua dua tshiab).
• Cov Cai Kev Nyab Xeeb: Ua raws liCov Cai Kev Nyab Xeeb Tiv Thaiv Kev Tawg Plua Plav(GB 15577-2018), xav tau cov khoom siv pab kom tawg (siab: 0.01–0.02 MPa) thiab kev tshuaj xyuas av electrostatic tsis tu ncua rau cov tshuab tshem tawm plua plav.