Ma muli o ka hana maikaʻi loa o ka graphite electrodes me ka conductivity kiʻekiʻe, ke kūpaʻa kiʻekiʻe i ka haʻalulu wela a me ka corrosion kemika a me ka haumia haʻahaʻa, ke pāʻani nei nā electrodes graphite i ka hana koʻikoʻi i ka hana kila EAF i ka wā o ka ʻoihana kila a me ka metallurgy no ke koi ʻana i ka hoʻomaikaʻi ʻana i ka pono, hoʻemi i nā kumukūʻai, hoʻomau.
He aha ka Graphite Electrode?
ʻO GRAPHITE ELECTRODES ka mea hoʻoheheʻe maikaʻi loa no ka umu ahi arc a me ka umu hoʻoheheʻe ʻia, Ua hana ʻia e nā cokes koila kiʻekiʻe i hui ʻia, hoʻoheheʻe ʻia, kālua a me ka hana graphitization e hana i ka huahana i hoʻopau ʻia. hiki ke pale i ka wela loa me ka haki ʻole. ʻO ia wale nō ka huahana i loaʻa i nā kiʻekiʻe kiʻekiʻe o ka conductivity uila a me ka hiki ke hoʻomau i nā pae kiʻekiʻe loa o ka wela i hana ʻia i loko o ke kaiapuni koi.
Keia hiʻona ho'ēmi i ka ikehu poho a me ka hoʻomaikaʻi i ka holoʻokoʻa hooheheeia kaʻina hana, ka hopena i ka emi ikehu hoʻohana a me ka emi hana koina.
Nā Pono Kūʻokoʻa o ka Electrode Graphite
ʻO ka GRAPHITE ELECTRODE ka mea kūpono no ka hoʻohanaʻana i nā kapuahi uila a me nāʻoihanaʻoihana'ē aʻe.
- Kiʻekiʻe Thermal Conductivity- Loaʻa i nā electrodes graphite maikaʻi ka thermal conductivity, e hiki ai iā lākou ke kū i nā wela kiʻekiʻe a me nā kaomi i ka wā o ka hoʻoheheʻe ʻana.
- Kūleʻa Uila Haʻahaʻa- ʻO ka haʻahaʻa haʻahaʻa haʻahaʻa o nā electrodes graphite e hoʻomaʻamaʻa i ke kahe maʻalahi o ka ikehu uila i nā kapuahi uila.
- Ikaika Mechanical Kiʻekiʻe- Hoʻolālā ʻia nā electrodes graphite e loaʻa i ka ikaika mechanical kiʻekiʻe e kū i ke kiʻekiʻe kiʻekiʻe o ka wela a me ke kiʻekiʻe o ke kaomi i loko o nā kapuahi uila.
- Kūʻē Kemika maikaʻi loa- He mea inert loa ka graphite i kū i ka hapa nui o nā kemika a me nā mea ʻino.He kūpono nā graphite electrodes no ka hoʻohana ʻana i nā kaiapuni ʻoihana koʻikoʻi, kahi e hāʻule ai nā mea ʻē aʻe ma muli o ka hoʻouka ʻana i ke kemika.
ʻAʻole hoʻohana nui ʻia nā electrodes graphite i nā umu ahi arc, hoʻohana pū ʻia i ka hana ʻana i ka metala silika, phosphorus melemele, a me nā metala non-ferrous, acids, alkalis, a me nā mea ʻē aʻe, corrosive environment.
Hoʻokaʻawale ʻia nā electrodes graphite i ʻekolu mau māka e pili ana i kā lākou mau waiwai kino, nā kikoʻī a me nā noi like ʻole e pili ana i ka mana o ka umu uila, ka ukana mana transformer.ʻO nā māka i hoʻohana pinepine ʻia o nā electrodes graphite ʻo ia ka mana Ultra-kiʻekiʻe (UHP), mana kiʻekiʻe (HP), a me ka mana maʻamau (RP).
UHP graphite electrodes hiʻona kiʻekiʻe thermal conductivity a me ka haʻahaʻa uila kū'ē, lakou i kūikawā hoʻohana no ka ultra-kiʻekiʻe mana uila uila arc kapuahi (EAF) i ka hooheheeia o ka hoʻoheheʻe kila a kūikawā steel.UHP graphite electrode ua kūpono i ka uila kapuahi 500 ~ 1200kV / A no ke tona.
ʻO ka HP Graphite Electrode ka mea conductive maikaʻi loa no ka umu ahi arc a me ka umu hoʻoheheʻe, hana ia ma ke ʻano he mea lawe e hoʻokomo i kēia manawa i loko o ka umu. no ke tona.
Hoʻohana nui ʻia ʻo RP graphite electrode i ka umu uila mana maʻamau a puni ka 300kV/A no ka ton a i ʻole ka liʻiliʻi. no ka hana ʻana i nā metala haʻahaʻa e like me ka hana kila, hoʻomaʻemaʻe silikon, hoʻomaʻemaʻe i ka phosphorus melemele, hana i nā ʻoihana aniani.
Me ka piʻi nui ʻana o nā kumu mana ʻē aʻe, ke pāʻani nei nā electrodes graphite i kahi hana koʻikoʻi i ka hoʻomohala ʻana o nā wahie.
Loaʻa i nā electrodes graphite ka nui o nā noi i nā ʻoihana like ʻole.ʻO kekahi o nā noi mua o ka electrode graphite e komo pū ana;
Uhi Ahi Uila (EAF) ma ka hana kila
ʻO ka noi electrode graphite i ka hana kila EAF he mea nui o ka hana kila hou.ʻO nā electrodes graphite e like me ke alakaʻi e hāʻawi i ka uila i ka umu, a laila e hoʻopuka i ka wela e hoʻoheheʻe i ke kila. ʻO ke kaʻina hana EAF e koi i nā mahana kiʻekiʻe e hoʻoheheʻe ai i ke kila ʻōpala, hiki i nā electrodes graphite ke kū i nā wela kiʻekiʻe me ka ʻole o ka nalowale ʻana o ko lākou structural integrity. Ke hoʻomau nei ka nānā ʻana i nā ʻano hana hoʻomau a maikaʻi hoʻi, e hoʻomau ka graphite electrodes i ke kuleana koʻikoʻi i ka hana kila EAF.
Uhi Ladle(LF)
ʻO nā kapuahi Ladle (LFs) nā mea koʻikoʻi o ka hana kila.Loaʻa i nā electrodes graphite nā hiʻohiʻona maikaʻi loa e pili ana i ka conductivity kiʻekiʻe, ke kū'ē i ka haʻalulu wela a me ka corrosion kemika, a me ka lōʻihi o ke ola, ʻo lākou ke koho kūpono no ka noi ladle furnace (LF). a me ka maikaʻi o ke kumukūʻai, ʻoiai e mālama ana i nā kūlana kiʻekiʻe e koi ai ka ʻoihana.
Imi Uila Paʻa (SEF)
Hoʻohana nui ʻia nā electrodes graphite i loko o ka umu uila i hoʻopaʻa ʻia he mea koʻikoʻi i ka hana ʻana o nā metala a me nā mea e like me ka phosphorus melemele, silika maʻemaʻe.Loaʻa i nā electrodes graphite ka hiʻohiʻona maikaʻi e pili ana i ka conductivity uila kiʻekiʻe, ke kūpaʻa kiʻekiʻe i ka haʻalulu wela, a me ka coefficient haʻahaʻa o ka hoʻonui wela.ʻO kēia mau hiʻohiʻona e hana i ka electrode graphite i mea kūpono no ka hoʻohana ʻana i nā umu uila i hoʻopaʻa ʻia, kahi maʻamau ka wela a me nā kūlana paʻakikī.
He mau mea koʻikoʻi ka graphite electrodes i ke kaʻina hana kila ʻo Electric Arc Furnace (EAF).
- ʻAno kila a me ka pae
- ʻO ka hana puhi ahi a me ka oxygen
- pae mana
- pae o kēia manawa
- Hoʻolālā kapuahi a me ka hiki
- Kāohi mea
- ʻO ka hoʻohana ʻana i ka electrode graphite
ʻO ke koho ʻana i ka electrode graphite kūpono no kāu umu ahi he mea koʻikoʻi ia i ka hoʻokō ʻana i ka hana maikaʻi loa, ka hoʻemi ʻana i ka ikehu, a me ka hōʻemi ʻana i nā kumukūʻai mālama.
Palapala No ka Manaʻo Hoʻohālikelike No ka Uhi Uila Me Electrode
| Kaha kapuahi (t) | Anawaena o loko (m) | Ka nui o ka mea hoʻololi (MVA) | Anawaena Electrode Graphite (mm) | ||
| UHP | HP | RP | |||
| 10 | 3.35 | 10 | 7.5 | 5 | 300/350 |
| 15 | 3.65 | 12 | 10 | 6 | 350 |
| 20 | 3.95 | 15 | 12 | 7.5 | 350/400 |
| 25 | 4.3 | 18 | 15 | 10 | 400 |
| 30 | 4.6 | 22 | 18 | 12 | 400/450 |
| 40 | 4.9 | 27 | 22 | 15 | 450 |
| 50 | 5.2 | 30 | 25 | 18 | 450 |
| 60 | 5.5 | 35 | 27 | 20 | 500 |
| 70 | 6.8 | 40 | 30 | 22 | 500 |
| 80 | 6.1 | 45 | 35 | 25 | 500 |
| 100 | 6.4 | 50 | 40 | 27 | 500 |
| 120 | 6.7 | 60 | 45 | 30 | 600 |
| 150 | 7 | 70 | 50 | 35 | 600 |
| 170 | 7.3 | 80 | 60 | --- | 600/700 |
| 200 | 7.6 | 100 | 70 | --- | 700 |
| 250 | 8.2 | 120 | --- | --- | 700 |
| 300 | 8.8 | 150 | --- | --- | |