Txawm hais tias koj tab tom npaj dab tsi: yuav ntoo pellets lossis tsim cov ntoo pellet cog, nws yog ib qho tseem ceeb rau koj kom paub tias cov ntoo pellets zoo li cas thiab qhov phem. Ua tsaug rau kev tsim kho kev lag luam, muaj ntau tshaj 1 cov qauv ntoo pellets hauv khw. Ntoo pellet standardization yog ib qho kev sib koom ua ke ntawm cov khoom hauv kev lag luam. Txij li thaum Austrian cov qauv (ÖNORM M1735) tau luam tawm nyob rau hauv 1990, ob peb EU cov tswv cuab tau tsim lawv tus kheej lub teb chaws pellets qauv, xws li DINplus (Lub teb chaws Yelemees), NF (Fabkis), Pellet kub (Ltalis), thiab lwm yam. Raws li lub loj tshaj plaws pellets lag luam. Nyob rau hauv lub ntiaj teb no, European Commission tau tsim cov EU qauv (CEN TC335- EN 14961) rau cov roj khoom, uas yog raws li Austrian cov qauv (ÖNORM M1735).

Raws li tag nrho cov qauv uas twb muaj lawm ntawm cov ntoo pellets, peb muab koj cov lus qhia siab heev los pab koj txheeb xyuas cov ntoo pellets zoo.

Peb tau sau tag nrho cov tseem ceeb rau koj kom ceev nrooj xyuas seb cov ntoo pellet zoo npaum li cas. Tsuas yog ua raws cov kauj ruam hauv qab no:

Feem ntau cov ntoo pellet diameters yog 6mm thiab 8mm. Feem ntau, qhov me me ntawm txoj kab uas hla yog, qhov kev ua tau zoo pelletizing nws muaj. Tab sis yog tias txoj kab uas hla qis dua 5 hli, lub zog siv tau nce ntxiv thiab lub peev xwm poob qis. Tsis tas li ntawd, vim cov duab ntawm cov pellets, lub ntim ntawm cov khoom yog compressed, nws txuag qhov chaw cia. Ntxiv mus, nws yooj yim rau kev thauj mus los, yog li tus nqi tsheb thauj mus los tsawg. Ntawm tag nrho cov qauv uas twb muaj lawm, muaj ib qho kev paub txog ntawm txoj kab uas hla tsis raug, uas tsis ntau tshaj 1 hli.

Raws li tag nrho cov qauv ntoo pellets, qhov xav tau cov ntsiab lus noo noo zoo sib xws, tsis pub ntau tshaj 10%. Technically, thaum lub sij hawm tus txheej txheem, cov ntsiab lus dej yog cov binder thiab lubricant. Yog tias cov ntsiab lus noo noo tsawg dhau, cov pellets tsis tuaj yeem txuas ntxiv, yog li cov pellets yuav deformation, thiab qhov ceev yog qis dua li cov pellets li qub. Tab sis yog tias cov ntsiab lus noo noo siab dhau lawm, lub zog noj yuav nce ntxiv, thiab qhov ntim kuj tseem yuav nce ntxiv, feem ntau, cov pellets yuav muaj qhov ntxhib ntxhib ntxhib los mos, thiab nyob rau hauv cov xwm txheej hnyav, cov khoom siv raw yuav tawg los ntawm kev tuag ntawm cov khoom. pellet zeb. Tag nrho cov qauv pellet qhia tau hais tias qhov zoo tshaj plaws noo noo rau ntoo pellets yog 8%, thiab qhov zoo tshaj plaws noo noo rau grain biomass pellets yog 12%. Lub pellet noo noo tuaj yeem ntsuas los ntawm lub ntsuas dej noo.

Qhov ntom ntawm cov ntoo pellets yog ib qho tseem ceeb tshaj plaws, feem ntau nws tuaj yeem muab faib ua ntau qhov ntom ntom thiab pellets ntom. Qhov ceev ntom yog cov khoom ntiag tug ntawm cov ntaub ntawv hmoov, xws li pellets, cov mis yog qhov ntau ntawm cov hmoov nplej faib los ntawm cov ntim lawv xav tau. Qhov ntau ntom cuam tshuam tsis yog tsuas yog kev sib xyaw ua haujlwm xwb tab sis kuj yog tus nqi thauj mus los thiab tus nqi khaws cia.

Ntxiv mus ntxiv, cov pellets ntom kuj tseem yog ib qho kev cuam tshuam rau nws cov ntom ntom thiab kev ua haujlwm siab, ntau dua nws muaj, lub sijhawm ntev dua nws yuav kav ntev.

Mechanical durability kuj yog ib qho tseem ceeb parameter. Thaum lub sij hawm kev thauj mus los thiab cia, cov pellets nrog ib tug qis mechanical durability yog yooj yim puas, nws yuav ua rau kom cov hmoov cov ntsiab lus. Ntawm txhua yam ntawm biomass pellets, ntoo pellets tuav lub siab tshaj plaws txhua yam kav ntev, txog 97.8%. Muab piv rau tag nrho cov qauv biomass pellets, lub tshuab ua haujlwm tsis muaj tsawg dua 95%.

Rau tag nrho cov neeg siv kawg, qhov teeb meem kev txhawj xeeb tshaj plaws yog cov emissions, uas muaj xws li Nox, Sox, HCl, PCCD (polychlorinated dibenzo-p-dioxins) thiab ya tshauv. Nitrogen thiab Sulfur cov ntsiab lus hauv cov pellets txiav txim siab npaum li cas ntawm Nox thiab Sox. Tsis tas li ntawd, qhov teeb meem corrosion yog txiav txim los ntawm cov ntsiab lus chlorine. Txhawm rau kom muaj kev sib xyaw ua ke zoo dua, tag nrho cov qauv pellets pom zoo kom txo qis cov ntsiab lus tshuaj.