Usoro nrụpụta GRAPHITE ELECTRODES

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1. RAW ihe
Coke (ihe dị ka 75-80% na ọdịnaya)

Petroleum Coke
Coke mmanụ ala bụ ihe akụrụngwa kachasị mkpa, a na-etolitekwa ya n'ụdị dị iche iche, site na coke agịga anisotropic nke ukwuu ruo ihe fọrọ nke nta ka ọ bụrụ isotropic fluid coke. Coke nke agịga anisotropic nke ukwuu, n'ihi nhazi ya, dị mkpa maka imepụta electrodes na-arụ ọrụ dị elu nke a na-eji n'ọkụ ọkụ eletrik, ebe a chọrọ oke ọkụ eletrik, igwe na ikike ibu ọkụ. Ọ fọrọ nke nta ka ọ bụrụ na a na-emepụta coke mmanụ ala naanị site na usoro ịchịkọta oge a na-egbu oge, nke bụ usoro ikuku carbon na-adị nwayọọ nwayọọ nke ihe fọdụrụ na-ekpochapụ mmanụ.

Coke agịga bụ okwu a na-ejikarị maka ụdị coke pụrụ iche nwere graphitizability dị oke elu sitere na ntuzi aka siri ike na-amasị ya nke usoro oyi akwa turbostratic na ụdị anụ ahụ nke ọka.

Ngwakọta (ihe dị ka 20-25% na ọdịnaya)

Ngwunye coal tar
A na-eji ihe ndị na-ejikọta ọnụ na-eme ka ihe ndị siri ike na-ejikọta ibe ha. Ike ha dị elu wetting si otú a na-agbanwe ngwakọta ahụ ka ọ bụrụ ọnọdụ rọba maka ịkpụzi ma ọ bụ extrusion na-esote.

Coal tar pitch bụ ngwakọta organic ma nwee nhazi ihe na-esi ísì ụtọ dị iche. N'ihi oke ya dị elu nke mgbanaka benzene dochie na condensed, o nweelarị usoro nhazi hexagonal lattice nke graphite nke ọma, si otú a na-eme ka e guzobe ngalaba eserese ahaziri nke ọma n'oge eserese. Pitch na-egosi na ọ bụ njide kachasị mma. Ọ bụ distillation fọdụrụnụ nke coal tar.

2. Ịgwakọta NA Mpụga
A na-agwakọta kok ahụ egweri na olulu coal tar na ụfọdụ ihe mgbakwunye iji mee otu mado. A na-ebute nke a n'ime cylinder extrusion. Na nzọụkwụ mbụ, a ga-ewepụ ikuku site na ịpịrị. Karịa n'ezie extrusion nzọụkwụ na-esote ebe ngwakọta na-extruded na-etolite ihe electrode nke chọrọ dayameta na ogologo. Iji mee ka ngwakọta ahụ na karịsịa usoro extrusion (lee foto dị n'aka nri) ngwakọta ahụ kwesịrị ịdị viscous. A na-enweta nke a site na idobe ya na okpomọkụ dị elu nke ihe ruru. 120 Celsius C (dabere na pitch) n'oge usoro mmepụta akwụkwọ ndụ akwụkwọ ndụ dum. Ụdị isi a nwere ọdịdị cylindrical ka a maara dị ka "electrode green".

3. ISI
A na-eji ụdị ọkụ ọkụ abụọ eme ihe:

N'ebe a, a na-edobe mkpanaka ndị a kpụpụrụ n'ime ite igwe anaghị agba nchara cylindrical (saggers). Iji zere nrụrụ nke electrodes n'oge usoro ikpo ọkụ, saggers na-ejupụtakwa na mkpuchi mkpuchi nke ájá. A na-ekwaju saggers n'elu ikpo okwu ụgbọ oloko (ala ala ụgbọ ala) wee tụba ya n'ime gas - ọkụ ọkụ.

Igwe ọkụ mgbanaka

N'ebe a, a na-etinye electrodes n'ime oghere mkpuchi nkume na ala nke ụlọ mmepụta ihe. oghere a bụ akụkụ nke usoro mgbanaka nke karịrị ụlọ iri. Ejikọtara ọnụ ụlọ ndị ahụ na usoro mgbasa ozi ikuku na-ekpo ọkụ iji chekwaa ike. A na-ejupụtakwa oghere dị n'etiti electrodes na ájá iji zere nrụrụ. N'oge a na-eme achịcha, ebe a na-eme ka carbon na-agbaze, a ghaghị ịchịkwa okpomọkụ nke ọma n'ihi na na okpomọkụ ruo 800 Celsius C na-ebuli ngwa ngwa gas nwere ike ime ka mgbawa nke electrode.

Na nke a na-adọ electrodes nwere a njupụta gburugburu 1,55 - 1,60 kg/dm3.

4. MGBE MGBE
A na-etinye ihe ndị a na-eme achịcha na-eji ụda pụrụ iche (mmiri mmiri dị na 200 Celsius) mee ka ha nwee njupụta dị elu, ike ọrụ, na eletriki eletrik ha ga-achọ iji nagide ọnọdụ ọrụ siri ike n'ime ọkụ ọkụ.

5. NKWUKWU
A na-achọgharị okirikiri ime achịcha nke abụọ, ma ọ bụ “nyocha,” ka ọ bụrụ carbonize impregnation nke pitch na ịchụpụ ihe ọ bụla fọdụrụnụ. Okpomọkụ rebaking ruru ihe fọrọ nke nta ka ọ bụrụ 750 Celsius. N'oge a, electrodes nwere ike iru njupụta gburugburu 1,67 - 1,74 kg / dm3.

6. NKWUO
Acheson Furnace
Nzọụkwụ ikpeazụ n'ichepụta graphite bụ ntughari nke carbon butere na graphite, nke a na-akpọ graphitizing. N'oge usoro eserese, a na-atụgharị carbon (carbon turbostratic) ma ọ bụ na-ebu ụzọ nye iwu ka ọ bụrụ nhazi graphite nwere akụkụ atọ.

A na-ejupụta na electrodes n'ime ọkụ eletrik nke ihe irighiri carbon gbara ya gburugburu ka ọ bụrụ oke siri ike. A na-agafe ọkụ eletrik site na ọkụ ọkụ, na-ebuli okpomọkụ ruo ihe dịka 3000 ° C. A na-enwetakarị usoro a site na iji ACHESON FURNAce ma ọ bụ ọkụ ogologo (LWG).

Site na ọkụ Acheson, a na-esepụta electrodes site na iji usoro batch, ebe n'ime ọkụ LWG, a na-esepụta kọlụm dum n'otu oge.

7. NKWUKWU
A na-eji igwe eletrọd graphite (mgbe ọ dị jụụ) ka a na-arụ ya na nha ya na ndidi. Ogbo a nwekwara ike ịgụnye nchikota na ịkwado nsọtụ ( sọket ) nke eletrọd na eriri graphite ntụtụ (ọra ara).


Oge nzipu: Eprel-08-2021