ʻO ka lanahu pitch, he pōkole no ka pitch tar pitch, ka hana hoʻoheheʻe ʻana o ka lanahu ma hope o ka wehe ʻia ʻana o ke koena distillate wai, no kahi ʻano asphalt artificial, maʻamau no ka wai viscous, semi-paʻa a paʻa paha, ʻeleʻele a ʻālohilohi, i loko o ke kalapona 92 ~ 94%, hydrogen e pili ana i 4 ~ 5%. He huahana nui ka coal tar pitch i ke kaʻina hana o ke kala lanahu a he mea hiki ʻole ke hoʻololi ʻia no ka hana kalapona.
ʻO ke kumu o ka hoʻoheheʻe ʻia ʻana o ka tar, ʻo ia ka hoʻopili ʻana i nā pūhui me nā wahi paila like i loko o ka pā i loko o nā hakina like no ka hana hou ʻana a me ka hoʻokaʻawale ʻana i nā huahana monomer. ʻO ke koena o ka distillate extraction ʻo ia ka lanahu tar pitch, helu no 50% ~ 60% o ka lanahu tar.
E like me nā wahi palupalu like ʻole, ua māhele ʻia ka lanahu asphalt i haʻahaʻa wela asphalt (soft asphalt), medium wela asphalt (maʻamau asphalt), kiʻekiʻe wela asphalt (paʻakikī asphalt) ʻekolu mau ʻāpana, kēlā me kēia ʻāpana he No. 1 a me ka No. 2 ʻelua papa. .
Hoʻohana nui ʻia ka lānahu bitumen ma nā ʻāina aʻe:
* Huina: Hiki ke hoʻohui ʻia nā mea paʻa me ka ʻaila kaumaha a i ʻole i hana ʻia i slurry i hoʻohana ʻia, hiki ke pāʻani i ke kuleana o ke pani ʻana i ka ʻaila kaumaha.
Pena: Pena e hoʻohui i ka rosin a i ʻole turpentine a me nā mea hoʻopiha i ka wā e kuke ai i ka ʻaila no nā hale wai a i ʻole nā paipu. He kūpono ia no ka hoʻolālā kila o waho, ka ʻōpala a me ka masonry papa wai a me ka pale pale, a hiki ke pena ʻia a pena ʻia i ka lumi wela.
* Ke kūkulu ʻana i ke alanui, nā mea kūkulu hale: hui pū ʻia me ka asphalt petroleum, asphalt lanahu a me ka asphalt petroleum i hoʻohālikelike ʻia, aia kahi ʻokoʻa maikaʻi a me ka lōʻihi. He ʻilihune ka asphalt lanahu i ka plasticity, ʻilihune i ke kūpaʻa wela, palupalu i ka hoʻoilo, palupalu i ke kauwela, a wikiwiki hoʻi ka ʻelemakule.
* Binder: E hana electrode, anode paste a me nā huahana kalapona ʻē aʻe, ka asphalt i hoʻololi ʻia. ʻO ka maʻamau, hoʻomākaukau ʻia ka asphalt i hoʻololi ʻia mai ka asphalt wela waena. Ma Kina, hoʻohana maʻamau ke kaʻina hana hoʻomehana ipu, a hoʻohana ʻia ke kinoea i wahie e wela ai ka asphalt i loko o ka reactor. ʻO ka hope, loaʻa ka asphalt hoʻololi paʻa ma o ka hoʻokaʻawale ʻana a me ka granulation.
* Asphalt coke: ke koena paʻa o ka asphalt lanahu ma hope o ka hoʻihoʻi ʻana o ka wela kiʻekiʻe a i ʻole ka lohi ʻana i ka coking. Hoʻohana pinepine ʻia ʻo Asphalt coke ma ke ʻano he kumu waiwai no nā mea kalapona kūikawā, he mea nui ia no ka hana ʻana i nā semiconductor a me nā lako hana panel solar. Hoʻohana nui ʻia ia e like me nā mea electrode no ka hoʻomaʻemaʻe alumini, nā mea carbonized no ka hana ʻana i ka umu uila a me nā huahana kalapona kūikawā no ka semiconductor.
* Needle coke: hoʻomaʻemaʻe ʻia i ka asphalt maʻemaʻe e ka hoʻomaʻamaʻa mua ʻana i nā mea, hoʻopaneʻe coking, kiʻekiʻe wela calcination ʻekolu kaʻina, hoʻohana nui ʻia i ka hana electrode a me nā huahana kalapona kūikawā. ʻO nā huahana i hanaʻia mai kāna mau mea waiwai e hōʻikeʻia e ka haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa hoʻonui hoʻonui, ikaika ikaika ka wela, kiʻekiʻe mechanical ikaika a me ka maikaʻi oxidation kū'ē.
* ʻO ke kalapona: fiber kūikawā me ka ʻoi aku o 92% carbon content i loaʻa mai ka asphalt ma o ka hoʻomaʻemaʻe ʻana, wili, pre-oxidation, carbonization a i ʻole graphitization.
* ʻO ka ʻaila i manaʻo ʻia, ke kalapona hoʻāla ʻia, ke kalapona ʻeleʻele a me nā mea hoʻohana ʻē aʻe.
Ka manawa hoʻouna: Nov-30-2022