Cov ntaub ntawv tseem ceeb uas yog biomass particle molding yog cov khoom sib txawv ntawm qhov ntau thiab tsawg, thiab cov yam ntxwv ntawm cov dej ntws, cov yam ntxwv ntws thiab compression yam ntxwv ntawm cov khoom thaum lub sij hawm compression txheej txheem muaj kev cuam tshuam zoo rau compression molding ntawm biomass.

Biomass pellet compression molding yog muab faib ua ob theem.

Nyob rau hauv thawj theem, nyob rau hauv thaum ntxov theem ntawm compression, lub siab qis yog pauv mus rau lub biomass raw khoom, thiaj li hais tias tus thawj loosely packed raw cov ntaub ntawv txheej txheem pib hloov, thiab lub internal void ratio ntawm biomass txo.

Nyob rau theem thib ob, thaum lub siab maj mam nce, lub siab cov menyuam ntawm lub tshuab biomass pellet tawg cov khoom loj-grained raw khoom nyob rau hauv qhov kev txiav txim ntawm lub siab, tig mus rau hauv finer hais, thiab deformation los yog yas ntws tshwm sim, cov hais pib sau cov khoom. voids, thiab hais yog ntau compact.Lawv mesh nrog ib leeg thaum lawv nyob rau hauv kev sib cuag nrog hauv av, thiab ib feem ntawm cov residual kev nyuaj siab yog khaws cia nyob rau hauv lub tsim hais, uas ua rau cov kev sib raug zoo ntawm cov hais.

Qhov zoo dua cov khoom siv raw uas ua rau cov khoom zoo li qub, qhov siab dua qhov ntim ntawm cov khoom thiab qhov sib cuag nruj dua;Thaum qhov loj me ntawm cov khoom me me rau qee qhov (ntau pua mus rau ob peb microns), lub zog sib txuas hauv cov khoom zoo li qub thiab cov thawj thiab theem nrab kuj tseem yuav hloov.Cov kev hloov pauv tshwm sim, thiab cov molecular attraction, electrostatic attraction, thiab kua theem adhesion (capillary quab yuam) ntawm cov khoom pib nce mus rau dominance.
Cov kev tshawb fawb tau pom tias qhov impermeability thiab hygroscopicity ntawm cov pwm pwm yog ze ze rau qhov loj me ntawm cov khoom.Cov khoom uas muaj me me me me muaj qhov loj ntawm qhov chaw tshwj xeeb, thiab cov khoom molded yog ib qho yooj yim kom nqus noo noo thiab rov qab ya raws.Me me, cov voids ntawm cov hais yog ib qho yooj yim mus sau, thiab lub compressibility yuav loj dua, yog li ntawd cov residual sab hauv kev nyuaj siab nyob rau hauv lub zoo li tus hais yuav ua rau me me, yog li tsis muaj zog lub hydrophilicity ntawm lub zoo li tus hais thiab txhim kho impermeability ntawm dej.

Nyob rau hauv txoj kev kawm ntawm particle deformation thiab binding daim ntawv thaum lub sij hawm compression molding ntawm cov ntaub ntawv cog, cov particle mechanical engineers tau soj ntsuam lub tshuab kuaj kab mob thiab particle ob-dimensional nruab nrab txoj kab uas hla ntsuas ntawm cov hais nyob rau hauv lub molding block, thiab tsim ib tug particle microscopic binding qauv.Nyob rau hauv cov kev taw qhia ntawm lub siab tshaj plaws tus thawj xib fwb kev nyuaj siab, cov hais mus rau ib puag ncig, thiab cov hais yog ua ke nyob rau hauv daim ntawv ntawm kev sib nrig sib meshing;nyob rau hauv cov kev taw qhia raws lub siab tshaj plaws tus thawj xib fwb kev nyuaj siab, cov hais yuav thinner thiab ua flakes, thiab particle txheej yog ua ke nyob rau hauv daim ntawv ntawm kev sib nrig sib bonding.

Raws li cov qauv kev sib xyaw ua ke no, nws tuaj yeem piav qhia tias qhov softer cov khoom ntawm biomass raw khoom, qhov yooj yim dua qhov nruab nrab ntawm ob sab ntawm cov khoom yuav loj dua, thiab qhov yooj yim ntawm biomass yog compressed thiab molded.Thaum cov dej ntsiab lus hauv cov khoom cog tsawg dhau lawm, cov khoom tsis tuaj yeem txuas ntxiv, thiab cov khoom nyob ib puag ncig tsis nruj, yog li lawv tsis tuaj yeem tsim;Thaum cov ntsiab lus dej siab dhau lawm, txawm hais tias cov ntsiab lus tau txuas mus rau qhov kev coj mus rau qhov siab tshaj plaws kev ntxhov siab, Cov khoom tuaj yeem sib txuas ua ke, tab sis vim tias cov dej ntau hauv cov khoom siv raw yog extruded thiab faib nruab nrab ntawm cov particle txheej, cov particle txheej tsis tuaj yeem txuas nrog, yog li nws tsis tuaj yeem tsim.

Raws li cov ntaub ntawv kev paub dhau los, tus kws tshaj lij tshwj xeeb tau txiav txim siab los txiav txim siab tias nws yog qhov zoo dua los tswj qhov loj me ntawm cov khoom siv raw hauv ib feem peb ntawm txoj kab uas hla ntawm qhov tuag, thiab cov ntsiab lus ntawm cov hmoov zoo yuav tsum tsis txhob siab dua. 5%.