Nrog rau kev tshwm sim tas li ntawm cov kav dej tshiab nyob rau xyoo tas los no, cov yeeb nkab yas tau siv los thauj cov pa roj. Cov kav dej yas yog cov kav dej tshwj xeeb uas tuaj yeem thauj tau ntau yam roj xws li cov pa roj carbon monoxide thiab biogas, uas yog cov kav dej ntau yam.
Lub peev txheej ntawm kev siv cov kav hlau yas yog dav. Cov yeeb nkab steel kho nrog cov tshuaj hauv cov txheej txheem sab hauv thiab sab nraud yog cov txheej txheem ntawm txheej txheej steel kav. Cov tshuaj yas feem ntau siv nyob rau hauv txheej txheej ntawm cov kav hlau muaj xws li polyethylene, epoxy resin thiab lwm yam txheej. Lub neej kev pab cuam ntawm cov kav hlau yas yog ntev dua li cov kav dej yav dhau los, uas tuaj yeem siv tau 50 xyoo. Txawm li cas los xij, cov yeeb nkab steel hloov cov yam ntxwv ntawm lub raj qub tom qab txheej, yog li koj yuav tsum tau them sai sai rau thaum tso.
Cov yam ntxwv ntawm cov kav hlau yas: muaj cov yam ntxwv ntawm kev tiv thaiv corrosion thiab xeb. Sab hauv phab ntsa ntawm cov yeeb nkab anticorrosive kauv hlau ntawm epoxy resin txheej yog du heev thiab kev sib txhuam kuj me me. Yuav siv tau rau cov kav dej ntuj lossis cov kav dej haus. Tsis tas li ntawd, sab nrauv phab ntsa ntawm cov kav dej tuaj yeem txhuam nrog cov duab ci ntsa iab, uas kuj zoo nkauj dua.
Piv nrog rau cov kav dej khov thiab rusty, kev pabcuam lub neej ntawm cov kav hlau yas tuaj yeem ncav cuag ntau tshaj 50 xyoo, thiab tag nrho cov nqi qis heev. Piv nrog cov kav dej tooj liab thiab cov kav dej galvanized, nws yog tus nqi ntau dua. Yog li tam sim no nws tsis yog cov kav dej hauv tsev xwb. Tsis tas li ntawd, nws tseem yog lub kav dej ntawm lub nroog. Piv txwv li, raws li ib tug natural gas thiab roj pipeline, txheej steel kav muaj lub hardness ntawm lub yav dhau los steel yeeb nkab, thiab nws yog sib dua, lub kuj yog me me, thiab cov txaus tus nqi nyob rau hauv pipeline yog sai dua.
Cov yam ntxwv ntawm cov khoom: Mine-shaped yas kav (tom qab no hu ua zaj duab xis-pob yas steel kav) yog steel-plastic composite kav nrog anti-static thiab nplaim retardant zog. Lawv tau ua los ntawm cov txheej txheem kev kho mob thiab tshwj xeeb coated nrog cov ntaub ntawv tshwj xeeb polyethylene rau sab hauv thiab sab nrauv ntawm cov kav hlau zoo tib yam. Qhov tseem ceeb
(1) Cov khoom no siv cov txheej txheem polyethylene. Nws cov khoom siv los tiv thaiv zoo li qub thiab nplaim hluav taws retardant yog sib npaug ntawm qhov chaw thiab cov khaubncaws sab nraud povtseg ntawm cov raj xa dej. Nws ua tau raws li qhov yuav tsum tau muaj ntawm MT181 thiab tsim nyog rau cov chaw tshwj xeeb uas cov mines yog cov nplaim taws thiab tawg.
(2) Muaj zog adhesion: Tom qab txheej txheej steel kav, tom qab txheej, adhesion, thiab txij nkawm, lub puab thiab peb tus kheej nto adhesion Ntau tshaj los yog sib npaug zos rau 30n / 10mm, thiab lub cev nqaij daim tawv rauj cuam tshuam thiab tsis muaj kev puas tsuaj tom qab tearing.
(3) Corrosion kuj, tsis yooj yim rau scalce, thiab me me kua kuj: pipelines muaj zog thiab alkaline, haum rau mining siab sulfur dej zoo, calcium thiab magnesium ion dej. Vim nws qhov kev huv huv siab, tsis muaj dej tsis kam, thiab tsis muaj av, nws tuaj yeem txo cov pa phem.
(4) High-voltage bearing muaj peev xwm: Polyethylene hmoov muaj cov yas zoo txheej toughness, siab steel yeeb nkab txhua yam muaj zog, muaj zog tiv thaiv kev cuam tshuam, khoov thiab lwm yam cuam tshuam sab nraud.
Kev siv tseem ceeb thiab kev siv ntau yam: Cov kav dej yas hlau yog siv rau cov kav dej dav hlau hauv qab cov mines, uas tuaj yeem siv rau cov mines kom cov dej ntws, qhov cua zoo, qhov cua tsis zoo, qhov cua tsis zoo, coal slurry spraying, gas emissions, etc. yuav tsum tsis txhob tshaj lub nominal siab.
