Cov Khoom Siv thiab Kev Teeb tsa Dab Tsi Muaj Rau Conical Screw Belt Mixer Tshwj Xeeb Kev Tsim Khoom?

Cov khoom sib tov siv conical ntsia hlau siv tau ntau yam khoom siv thiab kev teeb tsa rau cov xwm txheej tshwj xeeb. Cov neeg ua haujlwm tuaj yeem ntxiv cov khoom noj volumetric lossis gravimetric, cov qhov tso tawm, cov tshuaj tsuag nozzles, thiab cov ntaub thaiv uas tsis yooj yim hnav. Cov kev teeb tsa tshwj xeeb rau cov txheej txheem suav nrog cua sov, txias, ziab hauv lub tshuab nqus tsev, cov qauv CIP huv si, thiab cov tshuab hluav taws xob uas tsis tawg. Cov kev xaiv no txhawb nqa cov chaw ua haujlwm abrasive, kub siab, corrosive, huv si, thiab tawg. Kev xaiv cov khoom sib tov zoo yuav tsum tau soj ntsuam cov khoom siv, cov hom phiaj txheej txheem, thiab cov kev xav tau kev ua tau zoo. Cov qauv tsim tshwj xeeb kuj tseem tuaj yeem hloov kho rau cov qauv cog uas twb muaj lawm thiab cov tshuab automation. Ib qho kev sib phim zoo Conical Ntsia Hlau Tov Khoom txhim kho kev ruaj khov, kev nyab xeeb, thiab kev ua haujlwm zoo hauv txhua txoj kev sib tov. Cov chaw tsim khoom muab cov kev daws teeb meem tshwj xeeb, tab sis cov yam ntxwv xaiv txiav txim siab qhov kev ntseeg siab thiab kev tsim khoom mus sij hawm ntev.

Cov Ntsiab Lus Tseem Ceeb

• Kho koj tus kheej conical ntsia hlau sib tov nrog rau cov khoom noj, cov li qub, thiab cov tshuaj tsuag kom phim koj cov khoom ntws.
• Tiv thaiv kev hnav thiab xeb nrog cov ntsia hlau stainless hlau uas tau kho kom ruaj khov thiab cov chaw ci ntsa iab.
• Tswj qhov kub thiab siab nrog cua sov, cua txias, lossis lub tshuab nqus tsev rau cov hmoov uas rhiab heev.
• Xyuas kom muaj kev nyab xeeb hauv thaj chaw muaj kev phom sij nrog cov ntawv pov thawj tiv thaiv kev tawg xws li ATEX, IECEx, lossis NFPA 70 NEC.
• Tswj kev huv si nrog cov qauv tsim huv si thiab cov chaw du kom tiv thaiv kev ua qias tuaj.

Cov Khoom Siv Tshwj Xeeb rau Conical Screw Belt Mixers

Lub tshuab sib tov uas siv txoj siv conical tsis tshua ua haujlwm ua ib lub tshuab uas nyob ib leeg xwb. Cov chaw tsim khoom tsim ib lub ecosystem dav dav nyob ib puag ncig lub thawv sib tov tseem ceeb. Cov khoom ntxiv no tswj kev pub cov khoom siv, kev tso tawm, kev ntxiv kua, thiab kev tiv thaiv nto. Txhua yam khoom siv daws teeb meem tshwj xeeb ntawm kev tsim khoom. Cov neeg yuav khoom uas nkag siab txog cov kev xaiv no tuaj yeem xaiv lub tshuab sib tov conical uas haum rau lawv txoj haujlwm.

Cov Khoom Noj, Cov Qhov Dej Tawm, thiab Cov Nozzles Tshuaj Tshauv

Cov txheej txheem pub mis txiav txim siab seb cov khoom siv raw nkag mus rau hauv lub tshuab sib tov conical ntsia hlau siv li cas. Cov tshuab pub ib lub ntsia hlau haum rau cov hmoov yooj yim, ntws dawb. Cov tshuab pub ob lub ntsia hlau tuav cov khoom xyaw uas dej nyab lossis cov khoom xyaw ntws tsis zoo nrog kev ua haujlwm zoo dua. Cov tshuab pub BSP muab lwm txoj hauv kev me me rau cov qauv cog nruj. Kev xa khoom nqus tsev tag nrho txav cov hmoov los ntawm qhov chaw cia khoom mus rau qhov nkag ntawm lub tshuab sib tov. Qhov kev teeb tsa no txhawb nqa kev ua haujlwm tsis siv neeg thiab txo kev tuav tes.

Kev tsim cov khoom tso tawm tsim nyog tau txais kev saib xyuas sib npaug. Cov hmoov uas tsis sib xyaw ua ke hauv chav kawm 1–2 ua haujlwm zoo nrog cov chutes hnyav, cov qhov cua yooj yim, cov ntsia hlau pub, thiab cov siv. Cov ntaub ntawv no xav tau kev sib xyaw tsawg kawg nkaus. Cov hmoov sib xyaw hauv chav kawm 3–4 xav tau kev tsim kho kom zoo dua. Cov neeg ua haujlwm feem ntau xav tau cov ntsia hlau nrog lub suab kom raug, qhov dav dav, thiab qhov cua. Cov hoppers lossis cov hauv qab nyob saum cov pub tiv thaiv kev arching thiab surging. Cov conveyor vibratory uas tau kho kom zoo thiab kev tswj hwm aeration hauv hoppers kuj pab tau. Cov cua compressed-air blasts random feem ntau ua rau muaj teeb meem es tsis yog daws lawv.

Kev xaiv lub valve cuam tshuam rau kev ua haujlwm thiab kev huv. Cov valve uas siv tes ua haujlwm pheej yig dua thaum xub thawj. Lawv qeeb dua thiab siv zog ntau dua thaum lub sijhawm tsim khoom. Lub qhov rooj tso pa tawm los ntawm lub tshuab cua lossis hydraulic ua rau kev tso tawm sai thiab huv. Lawv sib xyaw yooj yim rau hauv cov txheej txheem ua haujlwm tsis siv neeg. Lub valve lobe uas tau teeb tsa ze rau hauv qab ntawm lub hau ntev pab txo cov ces kaum tuag thaum sib tov. Lwm cov qauv tso tawm suav nrog lub valve npauj npaim, lub valve pob, lub hnub qub, thiab cov qhov tawm sab. Hom tso tawm yuav tsum phim cov hmoov ntws kom tsis txhob muaj kev hloov pauv ntawm ib pawg mus rau ib pawg.

Cov kev xaiv txau atomization thiab kua ntxiv ua rau kev ua haujlwm yooj yim dua. Cov khoom siv no coj cov binders, flavors, lossis cov solvents ncaj qha mus rau hauv thaj chaw sib tov. Lawv txhawb nqa granulation, txheej, thiab cov txheej txheem reactive yam tsis muaj cov khoom siv sib cais.

Shenying Group yog kev ua tau zoo conical ntsia hlau siv sib tov nplooj ntawv khoom qhia txog ntau yam ntawm cov kev xaiv ntxiv no hauv daim ntawv teev khoom tiag tiag. Nplooj ntawv qhia txog yuav ua li cas cov khoom noj, cov twj tso kua mis, thiab cov tshuab tsuag sib xyaw ua ke rau hauv ib chav tsev uas tau teeb tsa.

Cov ntaub thaiv thiab kev kho kom zoo nkauj uas tiv taus kev hnav

Cov khoom siv uas muaj zog thiab xeb yuav tawm tsam cov nplaim ntawm cov khoom sib tov raws sijhawm. Cov ntsia hlau stainless hlau uas tau ua kom tawv, xws li SS316, nrog rau cov nplaim uas tau txhuam kom txo cov khoom seem thiab kev pheej hmoo ntawm kev xeb. Cov tsav tsheb hloov pauv zaus hloov kho qhov ceev ntawm cov ntsia hlau, feem ntau yog 5–60 rpm. Cov cav torque siab dua yog qhov xav tau rau cov khoom siv ntom lossis nplaum. Cov kev ntsuas no ua rau lub neej ua haujlwm ntev dua thiab tswj cov khoom siv tswj tau zoo ib yam thoob plaws ntau pawg.

Kev kho kom zoo nkauj ntawm qhov chaw tiv thaiv lub tshuab sib tov conical ntsia hlau ntxiv. Cov xim tiav, cov tshuaj pleev xim, thiab cov khoom sib txuas uas tawv tawv daws cov qauv hnav tshwj xeeb. Kev sib xyaw ua ke zoo nyob ntawm qhov nyuaj ntawm cov khoom siv, kev ua haujlwm tshuaj lom neeg, thiab qhov kub. Lub tshuab sib tov conical ntsia hlau uas tsim los nrog cov yam ntxwv no muab kev ua tau zoo txhim khu kev qha hauv cov chaw tsim khoom uas nyuaj.

Kev teeb tsa rau Cov Xwm Txheej Tshwj Xeeb

Cov xwm txheej tshwj xeeb ntawm kev tsim khoom xav tau ntau dua li lub thawv sib tov ib txwm muaj. Cov chaw tsim khoom teeb tsa lub tshuab sib tov conical ntsia hlau nrog cua sov, cua txias, nqus tsev, tiv thaiv kev tawg, thiab kev huv. Cov kev teeb tsa no hais txog kev kub ntxhov, cov hmoov av uas kub hnyiab tau, thiab cov cai huv huv. Cov neeg yuav khoom uas phim cov kev xaiv no rau lawv cov txheej txheem tau txais kev ruaj khov dua, kev nyab xeeb, thiab kev ua haujlwm zoo dua.

Cov Tshuab Ua Kub, Txias, thiab Nqus Tsev

Kev tswj qhov kub thiab txias yog qhov tseem ceeb rau cov hmoov uas rhiab heev. Lub tshuab sib tov conical ntsia hlau nrog lub tsho sov tswj cov khoom siv uas xav tau kev sov thaum lub sijhawm sib tov. Lub tshuab sib tov conical ntsia hlau nrog lub tsho txias tswj cov tshuaj exothermic lossis cov khoom xyaw rhiab heev rau cua sov. Qhov kub ua haujlwm rau cov kab ke no yog 40 txog 140 degrees Celsius. Lub siab tsim lub tsho ncav cuag 0.3 MPa. Cov khoom siv cua sov suav nrog dej kub, roj hloov cua sov, lossis cov pa dej qis. Cov khoom siv cua txias suav nrog dej txias lossis glycol. Cov kab ke no kuj txhawb nqa kev ziab thiab kev ua kom noo noo. Lub tshuab ziab conical ntsia hlau, ib hom conical ntsia hlau siv sib tov, tshem tawm cov dej noo thaum txo qhov siab.

Kev tsim qauv sib txawv tseem ceeb rau cov haujlwm tshwj xeeb. Cov qauv tsim ib lub khob hliav qab thiab ob lub khob hliav qab ua haujlwm sib txawv lub hom phiaj sib tov. Cov kev xaiv siv txoj siv sia uas tig tau txhim kho kev txav mus los rau cov khoom sib xyaw ua ke lossis cov khoom ua fibrous. Lub dav hlau helical ntsia hlau nqa cov khoom los ntawm hauv qab mus rau sab saum toj ntawm lub khob hliav qab. Qhov kev ua no tsim cov khoom sib tov mos mos, qis-shear. Cov khoom siv granule thiab cov khoom tawg yooj yim tau txais txiaj ntsig los ntawm qhov kev txav mus los no.

Qhov loj thiab qhov muaj peev xwm yuav tsum tau ua yog qhov kawg ntawm kev teeb tsa. Lub peev xwm sib tov txheem yog txij li 50 txog 5,000 litres. Cov khoom yuav tsum tau ntim 30 txog 80 feem pua ​​ntawm tag nrho cov ntim ntawm lub thawv. Qib ntim cuam tshuam rau kev sib xws. Kev ntim 30 feem pua ​​ua rau muaj 84 feem pua ​​sib xws. Kev ntim 70 feem pua ​​ncav cuag 99 feem pua ​​sib xws. Kev ntim 95 feem pua ​​poob rau 89 feem pua ​​sib xws. Cov neeg yuav khoom xam cov ntim khoom los ntawm kev faib lub hom phiaj tsim khoom txhua hnub los ntawm qhov ceev ntawm cov khoom thiab cov voj voog hauv ib hnub. Tom qab ntawd lawv faib cov ntim khoom los ntawm 0.8 rau qhov ntim tsawg kawg nkaus ntawm lub thawv thiab los ntawm 0.3 rau qhov ntim ntau tshaj plaws ntawm lub thawv. Kev sim ua ntej lees paub qhov kev xaiv kawg ua ntej yuav tag nrho.

Cov Qauv Uas Tiv Thaiv Kev Tawg Thiab Huv Si

Cov hmoov av uas kub hnyiab tau ua rau muaj kev phom sij tiag tiag hauv kev tsim tshuaj lom neeg, khoom noj, thiab pub tsiaj. Cov qauv tsis tawg tiv thaiv cov neeg ua haujlwm thiab cov khoom siv. ATEX, IECEx, thiab NFPA 70 NEC yog cov txheej txheem pov thawj tseem ceeb. Rau cov huab cua plua plav, ATEX siv thaj tsam 20, 21, thiab 22. IECEx siv cov qib tiv thaiv Da, Db, thiab Dc. Qhov sib npaug ntawm NEC yog Class II, Division 1 lossis 2. ATEX yog qhov yuav tsum tau ua hauv EU. NFPA 70 NEC thiab OSHA NRTL siv rau hauv Tebchaws Meskas IECEx tau txais thoob ntiaj teb. Cov ntawv pov thawj no ua kom lub tshuab sib tov conical ntsia hlau ua haujlwm zoo hauv cov chaw muaj kev phom sij.

Cov qauv tsim huv si siv rau cov khoom noj, tshuaj, thiab cov khoom noj pub tsiaj. Cov txheej txheem huv si, cov nplaim ci ntsa iab, thiab kev tswj hwm zoo dua txo qhov kev pheej hmoo ntawm kev ua qias tuaj. Kev tsim qauv huv si kuj ua rau kev hloov pauv ntawm cov pawg ua ke sai dua. Cov yam ntxwv no tseem ceeb thaum cov khoom sib tov conical ntsia hlau tswj ntau daim ntawv qhia zaub mov hauv ib hnub.

Cov Yam Tseem Ceeb Yuav Tsum Xav Txog Thaum Xaiv Lub Conical Screw Mixer

Muaj ob peb yam tseem ceeb uas yuav tsum xav txog thaum xaiv ib qho conical ntsia hlau sib tov suav nrog tus cwj pwm ntawm cov khoom siv, cov txheej txheem xav tau, thiab txoj kev tso tawm. Cov kws ua haujlwm kuj yuav tsum tshuaj xyuas cov kev xav tau ntawm kev tsim khoom. Kev sib phim tsis raug ua rau muaj kev sib cais lossis hnav ntau dhau.

Kev Soj Ntsuam Cov Khoom Siv thiab Cov Txheej Txheem Xav Tau

Kev sib xws ntawm cov khoom siv pib nrog qhov loj ntawm cov khoom me me, qhov ceev ntawm cov khoom loj, cov dej noo, thiab kev ntws tau. Carr Index siab dua 25 qhia tias ntws tsis zoo. Cov dej noo tuaj yeem tsim cov pob ntawm phab ntsa sib tov, yog li kev kuaj tom qab raug cov dej noo yog qhov tseem ceeb. Kev kuaj shear raws li ASTM D6128 yog qhov zoo tshaj plaws rau cov hmoov sib xyaw.

Cov kev xav tau tseem ceeb no ntxiv 2–4 lub lis piam rau cov tsho loj thiab 80–110 hnub rau kev tswj kom tsis txhob tawg. Lawv kuj yog cov yam tseem ceeb uas yuav tsum xav txog thaum xaiv lub tshuab sib tov conical ntsia hlau.

Ua haujlwm nrog cov chaw tsim khoom rau cov kev daws teeb meem tshwj xeeb

Cov neeg yuav khoom yuav tsum nug cov lus nug ntxaws txog kev txav ntawm lub hau ntswj, qhov ntau ntawm lub tshuab nqus tsev, cov kev xaiv valve, thiab qhov muaj CIP. Cov lus teb ua rau cov qauv tsim thiab cov tshuab tsav tsheb hloov kho tau. Cov ntaub ntawv meej txog cov dej noo, qhov kub thiab txias, thiab lub sijhawm ua haujlwm ua rau kev tsim kho sai dua.

Qhov loj thiab qhov muaj peev xwm yuav tsum muaj feem cuam tshuam rau lub tshuab sib tov conical ntsia hlau sab xis. Cov ntim ua haujlwm ib txwm muaj txij li 50 L txog 5,000 L. Kev thauj khoom ntau yuav tsum nyob nruab nrab ntawm 30% thiab 80% ntawm lub thawv ntim. Kev sau 70% ncav cuag 99% sib xws, thaum kev sau 30% ncav cuag 84%. Cov kev cai loj thiab qhov muaj peev xwm no txiav txim siab txog lub peev xwm sib tov.

Lub tshuab yuav tsum phim cov khoom siv hauv qab. Kev sib npaug siv sijhawm 5-15 feeb. Cov khoom sib tov ntsia hlau conical maj mam kov cov khoom siv granular thiab cov khoom tawg yooj yim. Cov neeg ua haujlwm xaiv cov khoom sib tov ntsia hlau conical rau cov khoom noj, tshuaj lom neeg, thiab tshuaj. Lub qhov tso tawm sab lossis lub qhov hluav taws xob pneumatic haum rau cov qauv cog uas twb muaj lawm.

Kev Sib Piv Khoom Siv Rau Koj Txoj Kev Sib Tov

Kev sib haum xeeb ntawm cov khoom siv rau koj cov txheej txheem sib tov pib nrog kev saib ze ntawm cov hmoov nws tus kheej. Qhov nyuaj ntawm cov khoom me me, kev ua haujlwm ntawm tshuaj lom neeg, cov dej noo, thiab qhov kub thiab txias txhua yam ua rau cov khoom siv kawg. Cov yam ntxwv no tsav kev xaiv ntawm cov liners, kev kho qhov chaw, thiab cov ntaub ntawv sib cuag. Lub tshuab sib tov conical uas tsis quav ntsej cov cim no yuav hnav sai dua, ua rau cov khoom ua qias tuaj, lossis ua tsis tiav thaum thauj khoom. Cov kws ua haujlwm uas kho cov khoom siv sib haum xeeb ua ib qho kev tsim qauv es tsis yog kev xav tom qab tiv thaiv ob qho tib si qhov zoo ntawm cov khoom thiab lub neej ntawm cov khoom siv.

Xaiv Lub Tshuab Sib Tov Conical Screw rau Cov Khoom Siv Abrasive lossis Corrosive

Cov hmoov txhuam yuav txhuam rau ntawm cov ntsia hlau, cov dav hlau, thiab phab ntsa ntawm cov hlab ntsha. Cov ntsia hlau stainless hlau uas tau ua kom tawv, xws li SS316, tiv taus qhov kev hnav no thiab tuav lawv cov qauv thoob plaws ntau pawg. Cov nplaim ci ntsa iab ntxiv txo cov khoom seem thiab txo qhov kev pheej hmoo ntawm kev xeb. Thaum xaiv ib qho conical ntsia hlau sib tov rau cov dej num corrosive, cov neeg yuav khoom yuav tsum teev cov chaw sib cuag SUS316L thiab xyuas cov ntawv pov thawj khoom ua ntej xa khoom. Cov kev xaiv no txuas ncaj qha rau kev ua haujlwm ruaj khov thiab kev sib xyaw ua ke thoob plaws lub neej ua haujlwm ntawm lub tshuab.

Kev Sib Txuas Cov Kev Teeb Tsa Rau Qhov Kub Thiab Kev Xav Tau Kev Huv Si

Qhov kub thiab kev huv huv xav tau kev xaiv teeb tsa rau ntau qhov kev taw qhia. Lub tshuab sib tov conical ntsia hlau nrog lub tsho cua sov lossis txias ua haujlwm rau cov khoom siv uas xav tau kev sov lossis cua sov tshem tawm thaum lub sijhawm sib tov. Qhov ntau thiab tsawg ua haujlwm yog 40 txog 140 degrees Celsius, thiab lub siab tsim lub tsho ncav cuag 0.3 MPa. Kev ua haujlwm huv huv xav tau cov qhov dej tsis muaj qhov chaw thiab cov nplaim ci nrog qhov roughness ntawm lossis qis dua Ra 0.6 lossis 0.4 micrometers. Lub rooj hauv qab no txuas txhua qhov kev thov nrog nws cov lus qhia tseem ceeb.

Lub tshuab sib tov siv txoj siv conical muaj ntau yam kev xaiv ntxiv thiab kev teeb tsa. Cov khoom noj, cov qhov tso tawm, cov tshuaj tsuag nozzles, thiab cov ntaub thaiv uas tiv taus hnav tswj cov khoom ntws thiab kev tiv thaiv nto. Kev ua kom sov, txias, nqus tsev, tiv thaiv kev tawg, thiab kev tsim qauv huv si daws cov xwm txheej tshwj xeeb ntawm kev tsim khoom. Cov kev xaiv no txhim kho kev ruaj khov, kev ua haujlwm zoo, thiab kev nyab xeeb. Kev sib xws ntawm cov khoom siv coj txhua qhov kev xaiv. Lub tshuab sib tov conical nrog cov ntaub thaiv thiab cov tiav zoo siv tau ntev dua thiab ntxuav sai dua. Kev xaiv lub tshuab sib tov conical zoo txhais tau tias phim cov yam ntxwv rau cov kev xav tau ntau lawm.

Cov Lus Nug Feem Ntau

Cov khoom siv twg tuaj yeem txhim kho kev pub thiab kev tso tawm hauv lub tshuab sib tov conical ntsia hlau?
Cov ntsia hlau ib leeg, cov ntsia hlau ob leeg, thiab cov khoom noj BSP tswj cov cwj pwm ntws hmoov sib txawv. Kev xa khoom siv lub tshuab nqus tsev txhawb nqa kev ua haujlwm tsis siv neeg. Cov kev xaiv tso tawm suav nrog cov qhov dej ntws tes, lub qhov rooj pneumatic, cov qhov dej lobe, cov qhov dej npauj npaim, thiab cov qhov hluav taws xob sab. Cov khoom siv no phim cov khoom siv ntws thiab txo cov ces kaum tuag thaum sib tov.

Cov tsho tiv cua sov thiab cua txias txhawb nqa cov xwm txheej tshwj xeeb ntawm kev tsim khoom li cas?
Cov tsho sov thiab txias tswj tau qhov kub ntawm 40 txog 140 degrees Celsius. Lub siab ntawm lub tsho tsim txog 0.3 MPa. Dej kub, roj hloov cua sov, lossis cov pa dej qis qis muab cua sov. Dej txias lossis glycol muab cua txias. Cov kab ke no kuj txhawb nqa kev ziab thiab ua kom noo rau cov hmoov rhiab heev.

Cov ntawv pov thawj twg siv tau rau cov khoom sib tov conical screw uas tsis tawg?
ATEX, IECEx, thiab NFPA 70 NEC yog cov txheej txheem pov thawj tseem ceeb. ATEX siv thaj tsam 20, 21, thiab 22 rau cov huab cua plua plav. IECEx siv cov qib tiv thaiv Da, Db, thiab Dc. Qhov sib npaug ntawm NEC yog Class II, Division 1 lossis 2. Cov qib no ua kom muaj kev nyab xeeb hauv cov chaw muaj kev phom sij.

Qib ntawm kev sau ntawv cuam tshuam li cas rau kev sib xyaw ua ke?
Qib kev sau khoom muaj feem cuam tshuam rau qhov sib xws. Kev sau 30 feem pua ​​​​​​ua rau muaj 84 feem pua ​​​​​​sib xws. Kev sau 70 feem pua ​​​​​​mus txog 99 feem pua ​​​​​​sib xws. Kev sau 95 feem pua ​​​​​​tso tseg rau 89 feem pua ​​​​​​sib xws. Cov neeg ua haujlwm yuav tsum khaws cov khoom thauj ntawm 30 thiab 80 feem pua ​​​​​​ntawm lub nkoj kom tau txais cov txiaj ntsig sib xws.

Vim li cas qhov sib xws ntawm cov khoom siv thiaj li tseem ceeb thaum xaiv cov khoom sib tov conical ntsia hlau zoo?
Cov khoom siv tsav cov lus qhia txog qhov nyuaj ntawm cov khoom me me, kev ua haujlwm tshuaj lom neeg, dej noo, thiab qhov kub thiab txias. Cov hmoov txhuam xav tau cov ntsia hlau stainless hlau uas tawv thiab cov nplaim ci. Kev ua haujlwm xeb xav tau cov nplaim sib cuag SUS316L nrog cov ntawv pov thawj uas tau txheeb xyuas. Cov ntawv thov huv si xav tau cov qhov dej tsis muaj qhov chaw tuag thiab qhov roughness ntawm lossis qis dua Ra 0.6 lossis 0.4 micrometers. Kev sib phim cov khoom siv kom raug tiv thaiv kev ruaj khov, kev ua haujlwm zoo, thiab kev nyab xeeb.