殺(sha)青(qing)主要目的(de)(de)是通過高溫破(po)壞和(he)鈍(dun)化鮮葉中的(de)(de)氧(yang)化酶活性，抑制鮮葉中的(de)(de)茶多酚等的(de)(de)酶促氧(yang)化，防止烘干過程(cheng)中變(bian)色。同時散發(fa)青(qing)臭味，促進良(liang)好香氣的(de)(de)形成。殺(sha)青(qing)機械多采(cai)用微(wei)波(bo)殺(sha)青(qing)機、滾筒殺(sha)青(qing)機和(he)燃氣炒(chao)青(qing)機。

微波殺青機

微(wei)波殺(sha)(sha)青設(she)備是一種新型(xing)的(de)(de)(de)殺(sha)(sha)青設(she)備，殺(sha)(sha)青速(su)(su)度快、效(xiao)率(lv)高、效(xiao)果(guo)(guo)好。在(zai)殺(sha)(sha)青的(de)(de)(de)同時，還(huan)可以除去(qu)約(yue)10%的(de)(de)(de)鮮(xian)葉(xie)(xie)水(shui)分。微(wei)波殺(sha)(sha)青機(ji)的(de)(de)(de)原(yuan)理主要是利用(yong)迅速(su)(su)升溫來鈍(dun)化鮮(xian)葉(xie)(xie)的(de)(de)(de)的(de)(de)(de)活(huo)性(xing)氧化酶(mei)，抑制鮮(xian)葉(xie)(xie)中(zhong)的(de)(de)(de)茶(cha)多酚(fen)等酶(mei)加速(su)(su)氧化，防止(zhi)在(zai)后續(xu)烘干過程中(zhong)發生色澤(ze)嚴重改(gai)變(bian)，同時揮發鮮(xian)葉(xie)(xie)的(de)(de)(de)腥草味(wei)，使茶(cha)香更好的(de)(de)(de)形(xing)成。采(cai)用(yong)微(wei)波殺(sha)(sha)青設(she)備對茶(cha)葉(xie)(xie)、菊花、金(jin)銀花等農產品進(jin)行(xing)殺(sha)(sha)青，平均每公斤的(de)(de)(de)量(liang)所需要的(de)(de)(de)電(dian)費不到三毛錢，而且殺(sha)(sha)青效(xiao)果(guo)(guo)顯(xian)著(zhu)，產品色澤(ze)、外(wai)形(xing)和香氣都屬上佳(jia)品。

滾筒殺青機

烏龍茶(cha)(cha)殺(sha)(sha)青(qing)常用90型與(yu)(yu)110型兩種機(ji)型，該機(ji)結構緊湊、操作方便、效率高(gao)(gao)。爐(lu)(lu)(lu)火(huo)直接(jie)(jie)加熱(re)轉(zhuan)(zhuan)動的筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)，茶(cha)(cha)葉(xie)(xie)(xie)(xie)在筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)內(nei)靠摩擦和(he)筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)轉(zhuan)(zhuan)動的離(li)心力在滾筒(tong)(tong)(tong)(tong)(tong)內(nei)拋轉(zhuan)(zhuan)，并(bing)吸(xi)收(shou)熱(re)量達到殺(sha)(sha)青(qing)目的。殺(sha)(sha)青(qing)適度(du)后(hou)，反轉(zhuan)(zhuan)滾筒(tong)(tong)(tong)(tong)(tong)，利用筒(tong)(tong)(tong)(tong)(tong)壁的螺旋導(dao)葉(xie)(xie)(xie)(xie)板將茶(cha)(cha)葉(xie)(xie)(xie)(xie)推出(chu)筒(tong)(tong)(tong)(tong)(tong)外(wai)(wai)。同時，借助(zhu)滾筒(tong)(tong)(tong)(tong)(tong)末端(duan)(duan)(duan)的風(feng)(feng)扇(shan)將筒(tong)(tong)(tong)(tong)(tong)內(nei)茶(cha)(cha)葉(xie)(xie)(xie)(xie)排凈。該機(ji)由(you)滾筒(tong)(tong)(tong)(tong)(tong)、傳動裝置(zhi)、風(feng)(feng)扇(shan)、機(ji)架(jia)、爐(lu)(lu)(lu)灶等(deng)部(bu)分(fen)組(zu)(zu)成。滾筒(tong)(tong)(tong)(tong)(tong)用鋼板卷制而成，內(nei)壁焊有(you)導(dao)葉(xie)(xie)(xie)(xie)板，導(dao)葉(xie)(xie)(xie)(xie)角為24°，其作用是幫助(zhu)進(jin)葉(xie)(xie)(xie)(xie)或(huo)推出(chu)殺(sha)(sha)青(qing)葉(xie)(xie)(xie)(xie)，并(bing)將茶(cha)(cha)葉(xie)(xie)(xie)(xie)帶(dai)至一定高(gao)(gao)度(du)后(hou)拋下。風(feng)(feng)扇(shan)可正、反轉(zhuan)(zhuan)，以吹葉(xie)(xie)(xie)(xie)出(chu)筒(tong)(tong)(tong)(tong)(tong)或(huo)吸(xi)排濕(shi)氣。滾筒(tong)(tong)(tong)(tong)(tong)的兩端(duan)(duan)(duan)外(wai)(wai)圍設有(you)擋煙(yan)(yan)圈，中心有(you)一轉(zhuan)(zhuan)軸(zhou)，通過兩端(duan)(duan)(duan)的輻條與(yu)(yu)筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)相接(jie)(jie)，轉(zhuan)(zhuan)軸(zhou)由(you)軸(zhou)承支撐于機(ji)架(jia)上。機(ji)架(jia)一般用角鋼制作。爐(lu)(lu)(lu)灶由(you)通風(feng)(feng)道、爐(lu)(lu)(lu)柵(zha)、爐(lu)(lu)(lu)膛(tang)(tang)、煙(yan)(yan)囪等(deng)組(zu)(zu)成。滾筒(tong)(tong)(tong)(tong)(tong)體(ti)(ti)置(zhi)于爐(lu)(lu)(lu)膛(tang)(tang)內(nei)，爐(lu)(lu)(lu)膛(tang)(tang)頂部(bu)有(you)拔風(feng)(feng)口與(yu)(yu)煙(yan)(yan)囪相通。110型殺(sha)(sha)青(qing)機(ji)傳動配(pei)用功率1.1千瓦(wa)，投葉(xie)(xie)(xie)(xie)量15~25千克,風(feng)(feng)機(ji)功率0.75千瓦(wa)。