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2021.02.26
生物質(zhì)秸稈發(fā)電的優(yōu)勢(shì)有哪些？
秸稈發(fā)電是秸稈優(yōu)化利用的主要形式之一，是生物質(zhì)氣發(fā)電的一種，秸稈是一種很好的清潔可再生能源，每?jī)蓢嵔斩挼臒嶂迪喈?dāng)于一噸標(biāo)準(zhǔn)煤，而且其平均含硫量只有千分之3.8，而煤的平均含硫量達(dá)到百分之一，在生物質(zhì)的再生利用過(guò)程中，排放的CO2與生物質(zhì)再生時(shí)吸收的CO2達(dá)到平衡，具有CO2零排放的作用，對(duì)緩解和更終解決溫室效應(yīng)問題將具有重大意義。
Straw power generation is one of the main ways to optimize the utilization of straw, and it is a kind of biomass gas power generation. Straw is a good clean and renewable energy. The calorific value of every two tons of straw is equivalent to one ton of standard coal, and its average sulfur content is only 3.8%, while the average sulfur content of coal is up to 1%. In the process of biomass recycling, the emission of CO2 is closely related to biomass regeneration It is of great significance to alleviate and ultimately solve the problem of greenhouse effect.
秸稈發(fā)電一般分為燃料準(zhǔn)備階段和輸送階段，進(jìn)入燃料倉(cāng)之前的秸稈處理生產(chǎn)線為燃料準(zhǔn)備階段，從燃料倉(cāng)到爐前這個(gè)階段為燃料輸送階段。
Straw power generation is generally divided into fuel preparation stage and conveying stage. The straw treatment production line before entering the fuel bunker is the fuel preparation stage, and the stage from the fuel bunker to the furnace is the fuel conveying stage.
1、燃料準(zhǔn)備階段的工藝流程
1. Process flow in fuel preparation stage
秸稈通過(guò)皮帶輸送線(上料)->切碎機(jī)(粗加工)->錘磨機(jī)(細(xì)加工)->旋風(fēng)分離器(分離切碎的秸稈和粉塵，秸稈進(jìn)入料倉(cāng))->布袋除塵器(粉塵回收，氣體排放)
Straw through the belt conveyor line (feeding) - > chopper (rough processing) - > hammer mill (fine processing) - > cyclone separator (separation of chopped straw and dust, straw into the bin) - > bag filter (dust recovery, gas emission)
2、燃料輸送階段的工藝流程
2. Process flow of fuel delivery stage
秸稈通過(guò)位于燃料倉(cāng)下部平面布置的由變頻電機(jī)驅(qū)動(dòng)的橫向排放螺旋輸送機(jī)驅(qū)動(dòng)進(jìn)而送入一個(gè)縱向螺旋輸送機(jī)。從縱向螺旋輸送機(jī)出來(lái)的燃料進(jìn)入出料口的螺旋氣閥。通過(guò)一次風(fēng)機(jī)將從位于燃料倉(cāng)的下部出料口的燃料以氣動(dòng)的形式分別送入燃燒器進(jìn)行燃燒。
The straw is driven by a transverse discharge screw conveyor driven by a frequency conversion motor, which is arranged in the lower plane of the fuel bunker, and then sent to a longitudinal screw conveyor. The fuel from the longitudinal screw conveyor enters the screw valve at the discharge port. Through the primary air fan, the fuel from the lower outlet of the fuel bunker is pneumatically sent to the burner for combustion.