殺(sha)(sha)青(qing)主要目的(de)是通過高溫破壞(huai)和鈍化(hua)鮮(xian)葉(xie)中(zhong)的(de)氧(yang)化(hua)酶活性，抑(yi)制鮮(xian)葉(xie)中(zhong)的(de)茶多(duo)酚等(deng)的(de)酶促氧(yang)化(hua)，防止烘(hong)干過程中(zhong)變色。同時散發青(qing)臭味，促進良好香(xiang)氣的(de)形成。殺(sha)(sha)青(qing)機(ji)(ji)械多(duo)采用微波殺(sha)(sha)青(qing)機(ji)(ji)、滾筒殺(sha)(sha)青(qing)機(ji)(ji)和燃氣炒青(qing)機(ji)(ji)。

微波殺青機

微波殺青(qing)設(she)備是一種新型的(de)(de)(de)(de)殺青(qing)設(she)備，殺青(qing)速度快、效率(lv)高、效果(guo)(guo)好(hao)。在殺青(qing)的(de)(de)(de)(de)同(tong)時(shi)(shi)，還可以除去約(yue)10%的(de)(de)(de)(de)鮮葉(xie)(xie)(xie)水分。微波殺青(qing)機的(de)(de)(de)(de)原(yuan)理主要是利(li)用(yong)迅速升溫(wen)來鈍化(hua)鮮葉(xie)(xie)(xie)的(de)(de)(de)(de)的(de)(de)(de)(de)活性氧化(hua)酶，抑制(zhi)鮮葉(xie)(xie)(xie)中的(de)(de)(de)(de)茶(cha)多酚等酶加速氧化(hua)，防止(zhi)在后續烘干過(guo)程中發生色(se)澤嚴重(zhong)改(gai)變(bian)，同(tong)時(shi)(shi)揮發鮮葉(xie)(xie)(xie)的(de)(de)(de)(de)腥草味，使茶(cha)香更(geng)好(hao)的(de)(de)(de)(de)形成(cheng)。采(cai)用(yong)微波殺青(qing)設(she)備對茶(cha)葉(xie)(xie)(xie)、菊(ju)花、金銀花等農產品進(jin)行(xing)殺青(qing)，平均每公斤的(de)(de)(de)(de)量所需要的(de)(de)(de)(de)電費不到三毛錢，而且(qie)殺青(qing)效果(guo)(guo)顯著，產品色(se)澤、外形和香氣(qi)都屬上佳品。

滾筒殺青機

烏龍茶(cha)殺(sha)(sha)青(qing)(qing)常用(yong)90型(xing)(xing)與110型(xing)(xing)兩種機(ji)(ji)型(xing)(xing)，該(gai)機(ji)(ji)結構(gou)緊湊、操作方便、效率高。爐(lu)火直(zhi)接加熱轉動的(de)筒(tong)(tong)(tong)(tong)(tong)體，茶(cha)葉(xie)(xie)(xie)(xie)在筒(tong)(tong)(tong)(tong)(tong)體內靠摩擦和筒(tong)(tong)(tong)(tong)(tong)體轉動的(de)離心力在滾(gun)筒(tong)(tong)(tong)(tong)(tong)內拋轉，并(bing)吸收熱量達到殺(sha)(sha)青(qing)(qing)目的(de)。殺(sha)(sha)青(qing)(qing)適度(du)后，反轉滾(gun)筒(tong)(tong)(tong)(tong)(tong)，利(li)用(yong)筒(tong)(tong)(tong)(tong)(tong)壁的(de)螺旋導(dao)(dao)葉(xie)(xie)(xie)(xie)板將(jiang)茶(cha)葉(xie)(xie)(xie)(xie)推(tui)出(chu)筒(tong)(tong)(tong)(tong)(tong)外(wai)。同時(shi)，借助滾(gun)筒(tong)(tong)(tong)(tong)(tong)末端的(de)風(feng)(feng)(feng)扇將(jiang)筒(tong)(tong)(tong)(tong)(tong)內茶(cha)葉(xie)(xie)(xie)(xie)排凈。該(gai)機(ji)(ji)由滾(gun)筒(tong)(tong)(tong)(tong)(tong)、傳動裝(zhuang)置、風(feng)(feng)(feng)扇、機(ji)(ji)架(jia)(jia)、爐(lu)灶(zao)(zao)等(deng)部分組成(cheng)。滾(gun)筒(tong)(tong)(tong)(tong)(tong)用(yong)鋼板卷制而成(cheng)，內壁焊(han)有(you)導(dao)(dao)葉(xie)(xie)(xie)(xie)板，導(dao)(dao)葉(xie)(xie)(xie)(xie)角為24°，其作用(yong)是幫助進葉(xie)(xie)(xie)(xie)或(huo)推(tui)出(chu)殺(sha)(sha)青(qing)(qing)葉(xie)(xie)(xie)(xie)，并(bing)將(jiang)茶(cha)葉(xie)(xie)(xie)(xie)帶(dai)至一(yi)定高度(du)后拋下。風(feng)(feng)(feng)扇可(ke)正、反轉，以(yi)吹葉(xie)(xie)(xie)(xie)出(chu)筒(tong)(tong)(tong)(tong)(tong)或(huo)吸排濕氣。滾(gun)筒(tong)(tong)(tong)(tong)(tong)的(de)兩端外(wai)圍設有(you)擋(dang)煙(yan)圈，中心有(you)一(yi)轉軸，通(tong)(tong)過兩端的(de)輻條與筒(tong)(tong)(tong)(tong)(tong)體相接，轉軸由軸承支撐于(yu)機(ji)(ji)架(jia)(jia)上。機(ji)(ji)架(jia)(jia)一(yi)般用(yong)角鋼制作。爐(lu)灶(zao)(zao)由通(tong)(tong)風(feng)(feng)(feng)道、爐(lu)柵、爐(lu)膛、煙(yan)囪等(deng)組成(cheng)。滾(gun)筒(tong)(tong)(tong)(tong)(tong)體置于(yu)爐(lu)膛內，爐(lu)膛頂部有(you)拔風(feng)(feng)(feng)口與煙(yan)囪相通(tong)(tong)。110型(xing)(xing)殺(sha)(sha)青(qing)(qing)機(ji)(ji)傳動配用(yong)功率1.1千(qian)瓦，投葉(xie)(xie)(xie)(xie)量15~25千(qian)克(ke),風(feng)(feng)(feng)機(ji)(ji)功率0.75千(qian)瓦。