Tshem tawm cov plua plav saum npoo los ntawm polypropylene (PP) granules tom qab sib xyaw ua ke feem ntau suav nrog kev siv lub cev xws li kev sib cais huab cua, ntxuav, thiab kev sib cais electrostatic; qhov tseem ceeb nyob rau hauv kev xaiv ib qho kev daws teeb meem uas ua raws li cov txheej txheem tsim khoom thiab kev siv nyiaj txiag.
1. Txoj kev tshem plua plav ceev
(1) Huab cua sib cais
Lub vibrating npo ua ke nrog lub tshuab tshuab yog siv los siv qhov sib txawv ntawm qhov sib txawv ntawm PP granules thiab hmoov av, tshuab tawm cov hmoov av sib dua nrog cov cua ntws. Qhov no yog qhov feem ntau thiab tus nqi - txoj kev siv tau zoo, haum rau cov plua plav dav dav.
(2) Static Elimination
Txij li kev sib txhuam kev sib txhuam feem ntau ua rau cov hluav taws xob zoo li qub uas nyiam cov plua plav, lub ionizing cua bar tuaj yeem ntsia tau rau ntawm qhov hluav taws xob tawm kom tsis txhob muaj cov nqi hluav taws xob zoo li qub rau ntawm qhov chaw granule, tso cai rau cov plua plav kom tshem tawm ib txwm muaj rau kev sau los ntawm cov plua plav extraction.
2. Cov tshuaj ntxuav tu tob tob
(1) Ntxuav thiab ziab
Rau cov plua plav ruaj khov, cov granules tuaj yeem txhuam tau - ntxuav nrog dej huv lossis tshuaj ntxuav tes, ua raws li kub- cua qhuav ntawm 80-100℃kom ntseeg tau cov dej noo qis dua 0.2% (Ceeb toom: qhov no yog cov txheej txheem noo noo yuav tsum tau ua rau cov yas ua raws li 2023 cov ntaub ntawv) thiab tiv thaiv cov txheej txheem subquent.
Ceeb Toom: Kev ziab tsis tiav tom qab ntxuav tuaj yeem ua rau oxidative yellowing thiab cov khoom degradation.
(2) Dej cawv so
Rau kev teeb tsa hauv chav kuaj lossis me me -batch ua, granule nto tuaj yeem so sai sai nrog lint -dawb daim ntaub dampened nrog anhydrous ethanol; cawv evaporates sai heev yam tsis tau tso cov residue. Txawm li cas los xij, txoj kev no yog kim thiab tsis muaj txiaj ntsig, ua rau nws tsis tsim nyog rau cov khoom loj -.
3. Cov khoom siv plua plav tshem tawm kev tshaj lij
(1) Cov Kab Tsuag Tshwj Xeeb
Loj - cov chaw tsim khoom lag luam tuaj yeem siv cov khoom siv ua ke ntawm cov yas granule ntxuav thiab dewatering tshuab. Cov tshuab no feem ntau suav nrog cov qauv rau ua ntej- ntxuav, yaug, siab- nrawm centrifugal dewatering, thiab rov ua kom sov- cua kom qhuav, nrog kev ua haujlwm muaj peev xwm ntawm 500 txog 2,000 kg ib teev (raws li cov khoom siv hauv kev lag luam ib txwm muaj los ntawm 2024).
(2) Vacuum Conveying Systems
Raws li cov khoom raug thauj los ntawm lub tshuab nqus tsev mus rau lub tov khoom lossis lub hopper, cyclone separators thiab lub hnab lim yog siv los cais cov plua plav ncaj qha, ua kom muaj plua plav- pub dawb thiab tswj kev huv.
4. Tiv thaiv kom tsis txhob muaj plua plav
Kev hais txog qhov laj thawj yuav tsum ua kom zoo tshaj qhov chaw cia thiab cov khoom siv - pub ib puag ncig:
- Khaws cov ntaub ntawv raw hauv huv, noo noo- pov thawj, ntim ntim; zam kev sib tw sab nraum zoov.
- Nruab cov plua plav yooj yim lossis cov ntxaij lim dej ntawm cov khoom sib xyaw kom tsis txhob muaj plua plav sab nraud nkag mus.
- Ua kom cov chaw ua haujlwm hauv pem teb huv si thiab ua kom cov av noo kom tsim nyog kom txo tau cov plua plav hauv huab cua.