Nrog rau kev taw qhia txog Kaum Ob Lub Tsib Hlis Ntuj, kuv lub teb chaws txoj kev tsim kho nroog yuav nrawm dua ib xyoos ib zaug. Txhua 1% nce hauv nroog loj yuav xav tau 3.2 billion cubic meters ntawm kev siv dej hauv nroog. Yog li ntawd, cov khoom tsim tawm ntawm cov kav dej yas tseem xav kom muaj qhov nruab nrab txhua xyoo ntawm 15%. Compound kev loj hlob ntawm li %.

Tuam Tshoj cov kav dej yas tau tsim los ua ib pawg tseem ceeb ntawm cov khoom yas. Cov khoom siv tshuaj lom neeg yog hom plaub ntawm cov khoom siv hauv tsev tshiab uas tshwm sim nyob rau lub sijhawm tam sim no tom qab steel, ntoo, thiab cement. Cov kav dej yas, yas profiles, qhov rooj thiab qhov rais yog ob lub ntsiab ntawm cov khoom siv hauv tsev uas siv ntau zaus. Txij li xyoo 1994, tsoomfwv Suav tau koom ua ke los ntawm Ministry of Construction, yav dhau los Ministry of Chemical Industry, yav dhau los Tuam Tshoj National Light Industry Council, National Building Materials Bureau, thiab yav dhau los Tuam Tshoj Petrochemical Corporation los koom ua ke "National Chemical. Pab Pawg Sib Koom Tes Ua Cov Khoom Siv Hauv Tsev” los tsim thiab tshaj tawm cov kev siv zog. Kev txhim kho cov khoom siv tshuaj lom neeg lub hom phiaj, cov phiaj xwm, cov cai, cov qauv, thiab lwm yam hauv ob peb xyoos, Tuam Tshoj cov kav dej yas, profiles, qhov rooj thiab qhov rais tau ua tiav sai. Lub teb chaws muaj peev xwm ntawm cov kav dej yas hauv xyoo 1994 yog 240,000 tons, thiab cov khoom tso tawm yog 150,000 Hauv xyoo 2000, lub peev xwm yog 1.64 lab tons, thiab cov zis yog 1 lab tons (ntawm cov zis ntawm PVC-U kav yog li 500,000 tons). , cov yeeb nkab ntau lawm kab tau mus txog ntau tshaj 2,000, thiab qhov loj-scale ntau lawm scale ntawm nyuaj polyvinyl chloride kav yog ntau tshaj 10,000 tons. Muaj ntau tshaj 30 lub lag luam thoob ntiaj teb.

Cov yeeb nkab niaj hnub feem ntau yog cov kav hlau, cov kav hlau cam, cov kav dej cement thiab cov kav dej av. Cov khoom siv yeeb nkab tsoos feem ntau muaj cov yam ntxwv ntawm kev siv hluav taws xob siab thiab ib puag ncig muaj kuab lom. Nyob rau tib lub sijhawm, cov yeeb nkab network kuj muaj qhov tsis zoo hauv qab no: ① Lub neej ua haujlwm luv, feem ntau 5-10 xyoo; ② Cov tshuaj tiv thaiv tsis zoo thiab corrosion kuj; ③ Kev ua haujlwm hydraulic tsis zoo; ④ Cov nqi tsim kho siab, lub sijhawm ntev; ⑤ Cov kav dej tsis zoo, tsis yooj yim rau xau, thiab lwm yam txij li nruab nrab ntawm lub xyoo pua 20th, cov teb chaws thoob ntiaj teb, tshwj xeeb tshaj yog cov teb chaws tsim, tau tsim cov khoom tshwj xeeb rau cov kav dej yas thiab siv cov kav dej yas.

Hauv kaum xyoo dhau los, cov kav dej yas tau tsim sai heev. Cov kav dej yas tau dhau los ua neeg nyiam ntau dua rau lawv cov kev tiv thaiv ib puag ncig thiab kev nyab xeeb hauv lub neej niaj hnub thiab kev siv hauv kev lag luam, thiab lawv ua lub luag haujlwm tseem ceeb thiab hloov tsis tau. Tshwj xeeb tshaj yog nyob rau hauv kev tsim kho kev lag luam, cov kav dej yas tuaj yeem tsis tsuas yog hloov cov hlau, ntoo, thiab cov khoom siv hauv tsev ib txwm siv hauv cov khoom siv loj, tab sis kuj muaj qhov zoo ntawm kev txuag hluav taws xob, txuag cov khoom siv, kev tiv thaiv ecological, txhim kho qhov chaw nyob, txhim kho kev ua haujlwm ntawm lub tsev. thiab ua tau zoo, txo qhov hnyav ntawm lub tsev, thiab ua kom tiav yooj yim. , Siv dav hauv kev tsim cov khoom siv dej thiab cov kav dej, cov dej hauv nroog thiab cov kav dej, cov kav dej thiab lwm yam; qhov kev loj hlob ntawm cov kav dej yas yog li 4 npaug ntawm qhov nruab nrab txoj kev loj hlob ntawm cov kav dej, uas yog ntau dua li kev loj hlob ntawm kev lag luam hauv teb chaws ntawm ntau lub teb chaws. Hloov cam khwb cia hlau kav thiab galvanized steel kav nrog ib puag ncig-phooj ywg yas yas kav tau dhau los ua tus qauv ntawm txoj kev loj hlob nyob rau hauv lub xyoo pua tshiab. Cov kav dej yas tau ua tiav tiav thiab siv dav hauv cov tebchaws tsim, tshwj xeeb tshaj yog nyob hauv Europe; txoj kev loj hlob nyob rau hauv kuv lub teb chaws tau ib tug kuj lagging, tab sis nyob rau hauv xyoo tas los no, nrog rau kev txhim kho ntawm kuv lub teb chaws lub teb chaws lub zog thiab kev txhim kho ntawm tib neeg cov kev cai nyob rau hauv lub neej, cov kav dej yas tau ua tiav sai. kev loj hlob ntawm.

Ntau yam thiab kev siv cov kav dej yas tau tsim sai heev hauv ob peb xyoos dhau los. Tam sim no, kuv lub teb chaws cov kav dej yas tau tsim rau hauv kev lag luam khoom siv hauv tsev nrog ntau yam ua tiav thiab muaj peev xwm ntau lawm. Cov kav dej yas tseem ceeb yog: UPVC kav,CPVC cov kav dej, thiab PE kav. , PAP yeeb nkab, PE-X yeeb nkab, PP-B yeeb nkab,PP-R cevABS yeeb nkab, PB yeeb nkab,steel-yas composite yeeb nkab, iav fiber reinforced yeeb nkab, thiab lwm yam. Nws yog dav siv hauv cov kav dej thiab cov kav dej rau kev tsim kho, cov kav dej hauv nroog faus, cov kav dej, cov kav dej, cov kav dej thiab cov kav dej rau cov neeg nyob deb nroog, cov kav dej, thiab cov kav dej phwj tuaj thiab tshuaj lom neeg kev thauj mus los, thiab lwm yam, ua tau raws li qhov xav tau ntawm ntau yam kev lag luam hauv lub tebchaws. Cov kev xav tau sib txawv ntawm cov kav dej. Peb yuav tsum tsim thiab tsim ib yam ntawm cov yeeb nkab yas raws li cov yam ntxwv thiab daim ntawv thov ntawm ntau cov kav dej.