Pakalipano, PVC palokha komanso kumtunda kwa calcium carbide ndizochepa kwambiri.Tikuyembekezera 2022 ndi 2023, chifukwa chamakampani a PVC omwe amagwiritsa ntchito mphamvu zambiri komanso zovuta zamankhwala a chlorine, tikuyembekezeka kuti sipadzakhalanso makhazikitsidwe ambiri omwe angapangidwe.Makampani a PVC amatha kulowa m'njira yolimba kwa zaka 3-4.
Msika wa calcium carbide ukupitilirabe bwino
Calcium carbide ndi makampani omwe amagwiritsa ntchito mphamvu zambiri, ndipo zowunikira za calcium carbide nthawi zambiri zimakhala 12500KVA, 27500KVA, 30000KVA, ndi 40000KVA.Miyendo ya calcium carbide pansi pa 30000KVA ndi mabizinesi oletsedwa ndi boma.Ndondomeko yaposachedwa yoperekedwa ndi Inner Mongolia ndi: ng'anjo zapansi pamadzi pansi pa 30000KVA, kwenikweni, zonse zimatuluka kumapeto kwa 2022;oyenerera amatha kugwiritsa ntchito kuchepetsa mphamvu m'malo pa 1.25: 1.Malinga ndi ziwerengero za wolembayo, makampani amtundu wa calcium carbide ali ndi mphamvu zopanga matani 2.985 miliyoni pansi pa 30,000 KVA, zomwe zimawerengera 8,64%.Miyendo yomwe ili pansi pa 30,000KVA ku Inner Mongolia imaphatikizapo kupanga matani 800,000, omwe amawerengera 6.75% ya mphamvu zonse zopanga ku Inner Mongolia.
Pakalipano, phindu la calcium carbide lakwera kwambiri, ndipo calcium carbide ikusowa.Kugwiritsidwa ntchito kwa ng'anjo za calcium carbide kuyenera kukhalabe kokwera, koma chifukwa cha zotsatira za ndondomeko, kuchuluka kwa ntchito sikunakweze koma kutsika.Makampani a PVC akumunsi amakhalanso ndi chiwongola dzanja chachikulu chifukwa cha phindu lake, ndipo pakufunika kwambiri calcium carbide.Kuyang'ana m'tsogolo, dongosolo loyambira kupanga calcium carbide likhoza kuyimitsidwa chifukwa cha "kusalowerera ndale kwa kaboni".Ndizotsimikizika kuti chomera cha Shuangxin cha matani 525,000 chikuyembekezeka kukhazikitsidwa mu theka lachiwiri la chaka chino.Wolembayo akukhulupirira kuti padzakhala zosintha zambiri za PVC kupanga mtsogolomo ndipo sizidzabweretsa zowonjezera zowonjezera.Zikuyembekezeka kuti makampani a calcium carbide adzakhala mu bizinesi m'zaka zingapo zikubwerazi, ndipo mitengo ya PVC ikhalabe yokwera.
Kupereka kwatsopano kwa PVC padziko lonse lapansi ndikotsika
PVC ndi bizinesi yowononga mphamvu zambiri, ndipo imagawidwa m'mphepete mwa nyanja ya ethylene ndi zida zamkati za calcium carbide ku China.Kuchuluka kwa kupanga PVC kunali mu 2013-2014, ndipo kukula kwa mphamvu zopanga kunali kochepa kwambiri, zomwe zinachititsa kuti 2014-2015 ikhale yochuluka kwambiri, kuwonongeka kwa mafakitale, ndipo chiwerengero cha ntchito chinatsikira ku 60%.Pakalipano, mphamvu yopangira PVC yachoka kuchoka kuzinthu zowonjezera kupita ku bizinesi, ndipo kuchuluka kwa ntchito zokwera pamwamba ndi pafupi 90% ya mbiri yakale.
Zikuoneka kuti zopanga zochepa za PVC zapakhomo zidzapangidwa mu 2021, ndipo kukula kwapachaka kudzakhala pafupifupi 5% yokha, ndipo ndizovuta kuchepetsa kukwanira.Chifukwa chakusowa kwanthawi yayitali pa Chikondwerero cha Spring, PVC ikuchulukirachulukira pakanthawi, ndipo mulingo wazinthu umakhala wosalowerera ndale chaka ndi chaka.Zikuyembekezeka kuti pambuyo poti kufunikira kuyambiranso kuwononga theka loyamba la chaka, zolemba za PVC zidzakhalabe zotsika kwa nthawi yayitali mu theka lachiwiri la chaka.
Kuchokera mu 2021, Inner Mongolia sidzavomerezanso mapulojekiti atsopano monga coke (blue charcoal), calcium carbide, ndi polyvinyl chloride (PVC).Ngati kumanga kuli kofunikira, mphamvu zopangira ndi kuchepetsa mphamvu zogwiritsira ntchito mphamvu ziyenera kukhazikitsidwa m'deralo.Zikuyembekezeka kuti palibe njira yatsopano ya calcium carbide yopanga mphamvu ya PVC yomwe idzapangidwe kupatula mphamvu yopangira yomwe idakonzedwa.
Kumbali inayi, kukula kwa mphamvu zopanga PVC kunja kwa nyanja kwatsika kuyambira 2015, ndi kukula kwapakati pa 2%.Mu 2020, disk yakunja idzalowa mumkhalidwe wokwanira wokwanira.Potengera momwe mphepo yamkuntho yaku US idakhudzira gawo lachinayi la 2020 komanso kuzizira mu Januware 2021, mitengo ya PVC yakunja yakwera mpaka mbiri yakale.Poyerekeza ndi mitengo ya PVC yakunja, PVC yapakhomo ndiyocheperako, ndipo phindu la kunja kwa yuan 1,500/tani.Makampani apakhomo adayamba kulandira maoda ochulukirapo kuyambira Novembala 2020, ndipo PVC yasintha kuchokera kumitundu yomwe ikufunika kutumizidwa kunja kupita kumitundu yogulitsa kunja.Zikuyembekezeka kuti pakhala malamulo otumizira kunja kotala loyamba la 2021, zomwe zakulitsa zovuta zapakhomo za PVC.
Pankhaniyi, mtengo wa PVC ndi wosavuta kukwera koma zovuta kugwa.Chotsutsana chachikulu pakali pano ndi kutsutsana pakati pa PVC yamtengo wapatali ndi phindu lotsika.Zogulitsa zotsika mtengo nthawi zambiri zimakwera pang'onopang'ono.Ngati mtengo wa PVC wokwera mtengo sungathe kufalikira kunsi kwa mtsinje, zidzakhudza zoyambira zoyambira ndi madongosolo.Ngati zinthu zotsika mtengo zitha kukweza mitengo nthawi zonse, mitengo ya PVC ikhoza kupitiliza kukwera.
Nthawi yotumiza: Jun-02-2021