Coal pitch, ipfupi kune marasha tar pitch, marasha tar distillation kugadzirisa mushure mekubviswa kwemvura ine distillate yasara, ndeyemhando yeasphalt yekugadzira, kazhinji kune viscous fluid, semi-yakasimba kana yakasimba, dema uye inopenya, kazhinji ine kabhoni 92. ~ 94%, hydrogen inenge 4 ~ 5%. Coal tar pitch chigadzirwa chikuru mukugadzirisa kwemarasha tara uye chinhu chisingadzokerike mbishi chekugadzira kabhoni.
Chinangwa che tar distillation ndechekuisa macompounds ane mapoinzi akafanana ekuvira mutara kuita zvikamu zvinowirirana kuti zvienderere mberi nekugadziriswa uye kupatsanurwa kwezvigadzirwa zvemonomeri. Izvo zvakasara zvekuchera distillate ndeye marasha tar pitch, inoverengera 50% ~ 60% yemarasha tara.
Maererano nemhando dzakasiyana dzekunyorovesa, marasha asphalt yakakamurwa kuita yakaderera tembiricha asphalt (soft asphalt), yepakati tembiricha asphalt (yakajairika asphalt), yakakwirira tembiricha asphalt (asphalt yakaoma) mapoka matatu, chikamu chimwe nechimwe chine No. 1 uye Nha. .
Bitumen yemarasha inonyanya kushandiswa mundima dzinotevera:
* Mafuta: Zvikamu zvakaonda zvinogona kusanganiswa nemafuta anorema kana kugadzirwa slurry inoshandiswa, inogona kuita basa rekutsiva mafuta anorema.
Pendi: Pendi inowedzera rosin kana turpentine uye mafiritsi paunenge uchibika mafuta ezvivakwa zvisingapinde mvura kana pombi. Iyo inokodzera kunze kwesimbi chimiro, kongiri uye masonry isingapindi mvura layer uye inodzivirira layer, uye inogona kupendwa uye kupendwa pakamuri tembiricha.
* Kuvakwa kwemugwagwa, zvekuvaka: kazhinji zvakasanganiswa ne petroleum asphalt, marasha asphalt uye petroleum asphalt zvichienzaniswa, pane iri pachena mhando gaka uye gaka rekusimba. Iyo asphalt yemarasha haina kunaka mupurasitiki, irombo mukugadzikana kwekushisa, brittle munguva yechando, inopfava muzhizha, uye kuchembera nekukurumidza.
* Binder: Ita electrode, anode paste uye zvimwe kabhoni zvigadzirwa binder, kazhinji yakagadziridzwa asphalt. Kazhinji, iyo yakagadziridzwa asphalt inogadzirirwa kubva pakati tembiricha asphalt. MuChina, kettle yekudziya nzira inowanzogamuchirwa, uye gasi rinoshandiswa sehuni kupisa asphalt mune reactor. Pakupedzisira, yakasimba yakagadziridzwa asphalt inowanikwa kuburikidza nekuparadzaniswa uye granulation.
* Asphalt coke: yakasimba yakasara yemarasha asphalt mushure mekupisa kwekushisa kwakanyanya kana kunonoka kubika. Asphalt coke inowanzo shandiswa seyakagadzirwa kune yakakosha kabhoni zvinhu, izvo zvakakosha pakugadzira semiconductor uye solar panel kugadzira michina. Iyo inoshandiswa zvakanyanya se electrode zvinhu zvealuminium kunatsa, carbonized zvinhu zvemagetsi simbi yekugadzira simbi uye yakakosha kabhoni chigadzirwa raw material ye semiconductor.
* Tsono coke: yakanatswa yakapfava asphalt neyakagadzirwa pretreatment, kunonoka coking, yakanyanya tembiricha calcination matatu maitiro, anonyanya kushandiswa mukugadzira electrode uye yakakosha kabhoni zvigadzirwa. Zvigadzirwa zvakagadzirwa kubva kune zvigadzirwa zvayo zvinoratidzirwa nekuderera kwekudzivirira, kuderera kwekuwedzera kwemafuta ekuwedzera, kupikisa kwakasimba kwekushisa, simba guru remagetsi uye kupikisa kwakanaka kwe oxidation.
* Carbon fiber: yakakosha faibha ine inodarika 92% kabhoni yemukati inowanikwa kubva asphalt nekunatsa, kutenderera, pre-oxidation, carbonization kana graphitization.
* Mafuta anonzwa, activated kabhoni, kabhoni dema uye zvimwe zvinoshandiswa.
Nguva yekutumira: Nov-30-2022