目前,市場上流行的殺青機械多是以微(wei)波(bo)殺青(qing)機(ji)、滾筒(tong)殺青(qing)機(ji)和燃氣炒(chao)青(qing)機(ji)為(wei)主(zhu)。
1.微波殺青機
微(wei)波(bo)殺(sha)青(qing)設(she)(she)備是一種新型的(de)殺(sha)青(qing)設(she)(she)備,殺(sha)青(qing)速(su)度快、效率高、效果好。在殺(sha)青(qing)的(de)同時,還可(ke)以除去約(yue)10%的(de)鮮(xian)(xian)葉(xie)水分。的(de)原(yuan)理主要(yao)是利用迅速(su)升溫來鈍(dun)化(hua)鮮(xian)(xian)葉(xie)的(de)的(de)活性(xing)氧化(hua)酶(mei),抑制鮮(xian)(xian)葉(xie)中的(de)茶(cha)(cha)多酚等酶(mei)加速(su)氧化(hua),防止在后續烘干過程中發生色澤嚴重改(gai)變,同時揮發鮮(xian)(xian)葉(xie)的(de)腥草味,使茶(cha)(cha)香(xiang)更(geng)好的(de)形成(cheng)。
采(cai)用微波殺(sha)青(qing)設備(bei)對茶葉(xie)、菊(ju)花、金銀(yin)花等農(nong)產品進行殺(sha)青(qing),平(ping)均每(mei)公斤的量(liang)所(suo)需要(yao)的電費(fei)不(bu)到三毛錢,而且(qie)殺(sha)青(qing)效果(guo)顯(xian)著,產品色澤、外形和香氣都屬上佳品。
2.滾筒(tong)殺青機
烏龍茶殺青常用90型與110型兩種機型,該機結構(gou)緊湊、操作方(fang)便、效率高。爐火直接加(jia)熱轉動的筒
體(ti)(ti),茶葉(xie)在筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)內(nei)(nei)靠(kao)摩擦(ca)和筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)轉(zhuan)動的(de)(de)(de)(de)離心(xin)力在滾筒(tong)(tong)(tong)(tong)(tong)內(nei)(nei)拋(pao)轉(zhuan),并吸(xi)收熱量達到(dao)殺(sha)青(qing)(qing)目的(de)(de)(de)(de)。殺(sha)青(qing)(qing)適度后,反轉(zhuan)滾筒(tong)(tong)(tong)(tong)(tong),利(li)用(yong)筒(tong)(tong)(tong)(tong)(tong)壁的(de)(de)(de)(de)螺旋導(dao)葉(xie)板(ban)將(jiang)茶葉(xie)推出筒(tong)(tong)(tong)(tong)(tong)外(wai)。同時,借助滾筒(tong)(tong)(tong)(tong)(tong)末端的(de)(de)(de)(de)風(feng)扇(shan)(shan)將(jiang)筒(tong)(tong)(tong)(tong)(tong)內(nei)(nei)茶葉(xie)排(pai)(pai)凈(jing)。該(gai)機(ji)(ji)由滾筒(tong)(tong)(tong)(tong)(tong)、傳(chuan)動裝置(zhi)、風(feng)扇(shan)(shan)、機(ji)(ji)架(jia)(jia)、爐(lu)灶(zao)等部分組成(cheng)。滾筒(tong)(tong)(tong)(tong)(tong)用(yong)鋼板(ban)卷制(zhi)而成(cheng),內(nei)(nei)壁焊有(you)(you)(you)導(dao)葉(xie)板(ban),導(dao)葉(xie)角為24°,其作(zuo)(zuo)用(yong)是幫助進葉(xie)或推出殺(sha)青(qing)(qing)葉(xie),并將(jiang)茶葉(xie)帶至一(yi)定高度后拋(pao)下。風(feng)扇(shan)(shan)可(ke)正、反轉(zhuan),以吹葉(xie)出筒(tong)(tong)(tong)(tong)(tong)或吸(xi)排(pai)(pai)濕氣。滾筒(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)(de)兩端外(wai)圍(wei)設有(you)(you)(you)擋(dang)煙圈,中(zhong)心(xin)有(you)(you)(you)一(yi)轉(zhuan)軸(zhou),通過(guo)兩端的(de)(de)(de)(de)輻條與(yu)筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)相接,轉(zhuan)軸(zhou)由軸(zhou)承支撐(cheng)于機(ji)(ji)架(jia)(jia)上。機(ji)(ji)架(jia)(jia)一(yi)般(ban)用(yong)角鋼制(zhi)作(zuo)(zuo)。爐(lu)灶(zao)由通風(feng)道、爐(lu)柵、爐(lu)膛(tang)、煙囪等組成(cheng)。滾筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)置(zhi)于爐(lu)膛(tang)內(nei)(nei),爐(lu)膛(tang)頂(ding)部有(you)(you)(you)拔風(feng)口與(yu)煙囪相通。110型殺(sha)青(qing)(qing)機(ji)(ji)傳(chuan)動配用(yong)功率1.1kW,投葉(xie)量15~25kg,風(feng)機(ji)(ji)功率0.75kW。
3.燃(ran)氣(qi)炒青機
該機(ji)(ji)(ji)以液化(hua)氣為熱(re)源(yuan),作(zuo)(zuo)業(ye)穩定,殺青均(jun)勻,清潔衛生、操作(zuo)(zuo)方便(bian)。該機(ji)(ji)(ji)為滾筒(tong)(tong)式(shi),由(you)滾筒(tong)(tong)、火排(pai)加熱(re)系(xi)(xi)統(tong)、傳動機(ji)(ji)(ji)構(gou)(gou)(gou)、出茶(cha)裝(zhuang)(zhuang)置、控制(zhi)系(xi)(xi)統(tong)和機(ji)(ji)(ji)架組成(cheng)(圖4)。滾筒(tong)(tong)體中部為圓筒(tong)(tong)式(shi)結構(gou)(gou)(gou),兩(liang)端為150mm錐體,外筒(tong)(tong)體采(cai)用(yong)(yong)保溫材料,轉(zhuan)筒(tong)(tong)體下部敞開,用(yong)(yong)于(yu)安裝(zhuang)(zhuang)加熱(re)火排(pai);加熱(re)系(xi)(xi)統(tong)使用(yong)(yong)液化(hua)氣作(zuo)(zuo)燃料,燃燒器為直線排(pai)火式(shi),采(cai)用(yong)(yong)電子點火裝(zhuang)(zhuang)置;傳動機(ji)(ji)(ji)構(gou)(gou)(gou)由(you)無級變速電機(ji)(ji)(ji)通(tong)(tong)過(guo)減速裝(zhuang)(zhuang)置帶動筒(tong)(tong)體轉(zhuan)動;機(ji)(ji)(ji)架用(yong)(yong)型鋼焊制(zhi)。機(ji)(ji)(ji)器的所有結構(gou)(gou)(gou)均(jun)裝(zhuang)(zhuang)置于(yu)機(ji)(ji)(ji)架上(shang),機(ji)(ji)(ji)架底部裝(zhuang)(zhuang)有4只行走輪,便(bian)于(yu)移動。整機(ji)(ji)(ji)配(pei)用(yong)(yong)功率0.75kW,單機(ji)(ji)(ji)投葉(xie)(xie)(xie)量10~15kg。作(zuo)(zuo)業(ye)時,待筒(tong)(tong)內(nei)溫度達(da)到作(zuo)(zuo)業(ye)要求(qiu)后,將(jiang)茶(cha)葉(xie)(xie)(xie)喂(wei)入滾筒(tong)(tong)內(nei),通(tong)(tong)過(guo)控制(zhi)系(xi)(xi)統(tong)調節滾筒(tong)(tong)轉(zhuan)速及筒(tong)(tong)內(nei)溫度,至茶(cha)葉(xie)(xie)(xie)殺青適度時,讓筒(tong)(tong)體出葉(xie)(xie)(xie)端向下傾斜,利用(yong)(yong)重力將(jiang)茶(cha)葉(xie)(xie)(xie)排(pai)出機(ji)(ji)(ji)外。
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