Thaum lub sijhawm xa khoom siv pneumatic, qhov ceev ntawm huab cua muaj feem cuam tshuam loj heev rau qib kev hnav ntawm cov kav dej chemshun uas tiv taus kev hnav. Vim tias kev hnav yog tshwm sim los ntawm kev sib tsoo lossis kev sib txhuam ntawm cov cua ntws thiab phab ntsa sab hauv ntawm cov kav dej, qhov ceev ntawm huab cua ntws ntau dua, lub zog ntawm kev sib tsoo lossis kev sib txhuam ntau dua, thiab qhov hnav hnyav dua. Nyob rau hauv tib yam xwm txheej, txo qhov ceev uas cov khoom ntaus phab ntsa yeeb nkab lossis hloov lub kaum sab xis ntawm cov khoom tuaj yeem txo qhov hnav ntawm phab ntsa yeeb nkab. Tau kawg, yog tias qhov ceev ntawm huab cua ntws qis dhau, cov khoom xa tuaj yuav raug tso rau hauv cov yeeb nkab thiab thaiv cov yeeb nkab. Yog li ntawd, kev xaiv qhov ceev ntawm huab cua ntws yog qhov tseem ceeb los xyuas kom meej tias lub kaw lus ua haujlwm ib txwm muaj.
Hauv kev xa khoom pneumatic, kev sib raug zoo ntawm qhov ntau ntawm kev hnav thiab qhov ceev ntawm huab cua tuaj yeem qhia tau tias qhov ntau ntawm kev hnav yog proportional rau lub voos xwmfab ntawm qhov ceev ntawm huab cua xa khoom, uas yog, qhov ceev dua thaum cov khoom sib cuag nrog phab ntsa yeeb nkab, qhov siab dua ntawm kev sib cuag tsim, qhov siab dua ntawm kev sib cuag tsim, thiab qhov ceev ntawm kev hnav ntawm phab ntsa yeeb nkab luj tshib. Muaj plaub qhov laj thawj tseem ceeb rau kev hnav ntawm pneumatic conveying hnav-resistant yeeb nkab:
(1) Qhov sib piv ntawm kev sib tov. Qhov sib piv ntawm cov khoom siv rau huab cua qis dua, qhov hnav hnyav dua.
(2) Tus nqi ntws. Tus nqi ntws ntawm cov khoom sib xyaw nrog huab cua hauv cov kav dej siab dua, qhov ntau dua qhov kev yaig thiab kev hnav ntawm phab ntsa yeeb nkab.
(3) Cov yam ntxwv ntawm cov khoom siv. Cov khoom siv uas muaj zog ntau dua, qhov hnav hnyav dua.
(4) Kev xaiv ntawm lub yeeb nkab txoj kab uas hla thiab qhov ntim cua. Yog tias kev xaiv tsis tsim nyog, qhov hnav yuav nce ntxiv exponentially.
Nws tuaj yeem pom tias txhawm rau kom txuas lub neej kev pabcuam ntawm cov kav dej uas tsis yooj yim hnav, nws yog qhov tsim nyog los xav txog qhov sib xyaw ntawm cov ntaub ntawv xa khoom, tus nqi ntws, txoj kab uas hla ntawm cov yeeb nkab, thiab lwm yam. Tsuas yog ua kom qhov nyuaj thiab tuab ntawm phab ntsa yeeb nkab tsis yog qhov kev daws teeb meem tseem ceeb rau qhov teeb meem.
Lub sijhawm tshaj tawm: Lub Rau Hli-22-2025