Siv xoob biomass los tsim cov roj pellet ntawm chav tsev kub yog ib txoj hauv kev yooj yim thiab ncaj qha los siv lub zog biomass. Wb sib tham txog cov cuab yeej siv tshuab ua qoob loo straw pellets nrog koj.

Tom qab cov qauv roj ntsha nrog cov qauv xoob thiab ceev ceev yog raug rau sab nraud, cov khoom siv raw yuav yauv los siv tshuab, muaj kev cuam tshuam yas deformation. Lub inelastic los yog viscoelastic cellulose molecules yog intertwined thiab twisted, lub ntim ntawm cov khoom yog txo thiab qhov ceev yog nce.

Lub compression ratio ntawm lub nplhaib tuag ntawm biomass pellet machinery khoom txiav txim qhov loj ntawm molding siab. Cov ntsiab lus cellulose ntawm raw cov ntaub ntawv xws li pob kws stalks thiab reeds yog me me, thiab nws yog ib qho yooj yim rau deform thaum extruded los ntawm sab nraud quab yuam, yog li lub compression ratio ntawm lub nplhaib tuag yuav tsum tau rau molding yog me me. , uas yog, molding siab yog me me. Cov ntsiab lus cellulose ntawm sawdust yog siab, thiab compression piv ntawm lub nplhaib tuag xav tau rau molding yog loj, uas yog, lub molding siab yog loj. Yog li ntawd, sib txawv biomass raw cov ntaub ntawv yog siv los tsim molded pellet roj, thiab sib txawv nplhaib tuag compression yuav tsum tau siv. Rau cov ntaub ntawv biomass nrog cov ntsiab lus cellulose zoo sib xws hauv cov ntaub ntawv raw, lub nplhaib tuag nrog tib qhov sib piv tuaj yeem siv tau. Rau cov ntaub ntawv tau hais los saum toj no, raws li compression piv ntawm lub nplhaib tuag taus, lub zog particle ua kom nce, thiab cov zis nce ntxiv. Thaum twg ib tug compression piv tau mus txog, qhov ceev ntawm cov tsim hais nce me ntsis, lub zog noj nce raws li, tab sis cov zis txo. Lub nplhaib tuag nrog compression piv ntawm 4.5 yog siv. Nrog sawdust raws li cov khoom siv raw thiab lub nplhaib tuag nrog qhov sib piv ntawm 5.0, qhov ceev ntawm cov roj pellet tuaj yeem ua tau raws li qhov yuav tsum tau ua, thiab kev siv lub zog ntawm cov cuab yeej siv tau tsawg.

Tib yam khoom raw yog tsim nyob rau hauv lub nplhaib tuag nrog sib txawv compression ratios, qhov ceev ntawm pellet roj nce maj mam nrog rau qhov nce ntawm compression piv, thiab nyob rau hauv ib tug tej yam kev sib txawv ntawm compression ratio, qhov ceev tseem nyob ruaj khov, thaum lub compression ratio nce mus rau ib tug. qee qhov, Cov khoom siv raw yuav tsis tuaj yeem tsim vim yog lub zog ntau dhau. Qhov loj ntawm cov nplej husk yog qhov loj thiab cov hmoov tshauv loj, yog li nws nyuaj rau cov nplej husk los tsim cov khoom. Rau cov khoom siv tib yam, txhawm rau kom tau txais qhov loj dua qhov ntom ntom, nws yuav tsum tau tsim los siv lub nplhaib loj dua compression piv.
Kev cuam tshuam ntawm raw khoom particle loj ntawm molding tej yam kev mob

Qhov loj me ntawm biomass raw cov ntaub ntawv muaj kev cuam tshuam zoo rau cov pwm molding. Nrog rau qhov nce ntawm qhov loj me ntawm pob kws stalk thiab reed raw cov ntaub ntawv, qhov ceev ntawm molding hais maj mam txo. Yog hais tias qhov particle loj ntawm cov khoom siv raw me me dhau, nws tseem yuav cuam tshuam rau qhov ntom ntom. Yog li ntawd, thaum siv biomass xws li pob kws stalks thiab reeds li raw khoom rau particle roj ntau lawm, nws yog tsim nyog los khaws cov particle loj ntawm 1-5 nun.

Kev cuam tshuam ntawm noo noo nyob rau hauv feedstock ntawm ntom ntawm pellet roj

Muaj qhov tsim nyog ntawm cov dej khi thiab cov dej dawb hauv lub cev lom neeg, uas muaj lub luag haujlwm ntawm cov roj nplua nyeem, uas txo cov kev sib txhuam sab hauv ntawm cov khoom thiab txhim kho cov fluidity, yog li txhawb cov zawv zawg thiab haum ntawm cov khoom nyob rau hauv qhov kev txiav txim siab. . Thaum cov dej ntsiab lus ntawm biomass raw khoom Thaum cov dej noo tsawg dhau, 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 noo noo siab dhau lawm, txawm hais tias cov khoom tuaj yeem txuas ntxiv mus rau qhov kev coj mus rau qhov siab tshaj plaws ntawm kev ntxhov siab, thiab cov khoom tuaj yeem sib txuas nrog ib leeg, tab sis txij li cov dej ntau ntxiv hauv cov khoom siv raw yog extruded thiab faib nruab nrab ntawm cov particle txheej. , cov khaubncaws sab nraud povtseg tsis tuaj yeem txuas nrog, yog li nws tsis tuaj yeem tsim.

Yog li ntawd, thaum biomass pellet tshuab thiab cov cuab yeej siv biomass xws li pob kws stalks thiab reeds li raw cov ntaub ntawv rau zus tau tej cov roj pellet, cov dej noo ntawm raw cov ntaub ntawv yuav tsum tau khaws cia ntawm 12% -18%.

Nyob rau hauv ib txwm kub tej yam kev mob, thaum lub sij hawm compression molding txheej txheem ntawm biomass raw cov ntaub ntawv, cov hais yog deformed thiab ua ke nyob rau hauv daim ntawv ntawm kev sib nrig sib meshing, thiab particle txheej yog ua ke nyob rau hauv daim ntawv ntawm kev sib nrig sib bonding. Cov ntsiab lus ntawm cellulose nyob rau hauv cov khoom raw txiav txim siab qhov nyuaj ntawm molding Qhov siab dua cov ntsiab lus cellulose, qhov yooj yim rau molding. Qhov loj me me thiab cov dej noo ntawm cov ntaub ntawv raw muaj qhov cuam tshuam loj rau cov pwm pwm.