殺青(qing)(qing)主要目的(de)(de)是(shi)通(tong)過高溫破壞(huai)和鈍化(hua)鮮(xian)(xian)葉中(zhong)(zhong)(zhong)的(de)(de)氧化(hua)酶(mei)活性，抑制鮮(xian)(xian)葉中(zhong)(zhong)(zhong)的(de)(de)茶多酚等的(de)(de)酶(mei)促氧化(hua)，防止烘干過程(cheng)中(zhong)(zhong)(zhong)變色。同(tong)時散發青(qing)(qing)臭(chou)味(wei)，促進良(liang)好香氣的(de)(de)形成。殺青(qing)(qing)機(ji)(ji)(ji)械多采用微(wei)波殺青(qing)(qing)機(ji)(ji)(ji)、滾筒殺青(qing)(qing)機(ji)(ji)(ji)和燃氣炒青(qing)(qing)機(ji)(ji)(ji)。

微波殺青機

微波(bo)(bo)殺(sha)(sha)青(qing)設(she)(she)備(bei)是(shi)一種(zhong)新(xin)型(xing)的(de)(de)(de)殺(sha)(sha)青(qing)設(she)(she)備(bei)，殺(sha)(sha)青(qing)速度快、效率(lv)高、效果好(hao)。在(zai)(zai)殺(sha)(sha)青(qing)的(de)(de)(de)同時，還(huan)可以除去約10%的(de)(de)(de)鮮(xian)(xian)葉(xie)(xie)水分。微波(bo)(bo)殺(sha)(sha)青(qing)機的(de)(de)(de)原理主要(yao)是(shi)利用迅速升(sheng)溫來鈍(dun)化(hua)鮮(xian)(xian)葉(xie)(xie)的(de)(de)(de)的(de)(de)(de)活性氧化(hua)酶(mei)，抑制鮮(xian)(xian)葉(xie)(xie)中(zhong)的(de)(de)(de)茶多酚(fen)等(deng)酶(mei)加(jia)速氧化(hua)，防止在(zai)(zai)后續烘干過程(cheng)中(zhong)發生(sheng)色(se)澤嚴重改變，同時揮發鮮(xian)(xian)葉(xie)(xie)的(de)(de)(de)腥草味，使茶香更(geng)好(hao)的(de)(de)(de)形(xing)成。采用微波(bo)(bo)殺(sha)(sha)青(qing)設(she)(she)備(bei)對(dui)茶葉(xie)(xie)、菊花(hua)、金銀花(hua)等(deng)農產品(pin)進行殺(sha)(sha)青(qing)，平均每公斤的(de)(de)(de)量所需要(yao)的(de)(de)(de)電費不到三毛錢，而且殺(sha)(sha)青(qing)效果顯(xian)著(zhu)，產品(pin)色(se)澤、外形(xing)和香氣都(dou)屬上(shang)佳品(pin)。

滾筒殺青機

烏龍茶(cha)殺青常用(yong)(yong)90型(xing)與110型(xing)兩種機(ji)型(xing)，該(gai)機(ji)結(jie)構緊(jin)湊(cou)、操作方(fang)便、效率(lv)(lv)高。爐(lu)(lu)(lu)火直接加(jia)熱轉(zhuan)(zhuan)動的(de)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)體(ti)(ti)，茶(cha)葉(xie)(xie)(xie)(xie)在筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)體(ti)(ti)內靠摩(mo)擦和筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)體(ti)(ti)轉(zhuan)(zhuan)動的(de)離心(xin)力在滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)內拋(pao)轉(zhuan)(zhuan)，并吸(xi)收熱量達(da)到殺青目的(de)。殺青適度(du)后，反(fan)轉(zhuan)(zhuan)滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)，利用(yong)(yong)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)壁的(de)螺旋(xuan)導葉(xie)(xie)(xie)(xie)板將茶(cha)葉(xie)(xie)(xie)(xie)推(tui)出(chu)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)外。同時，借助(zhu)滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)末端(duan)的(de)風(feng)扇將筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)內茶(cha)葉(xie)(xie)(xie)(xie)排(pai)(pai)凈。該(gai)機(ji)由滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)、傳動裝置、風(feng)扇、機(ji)架(jia)(jia)、爐(lu)(lu)(lu)灶等(deng)部(bu)分(fen)組(zu)成(cheng)。滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)用(yong)(yong)鋼(gang)(gang)板卷(juan)制(zhi)(zhi)而成(cheng)，內壁焊(han)有導葉(xie)(xie)(xie)(xie)板，導葉(xie)(xie)(xie)(xie)角(jiao)為(wei)24°，其作用(yong)(yong)是幫助(zhu)進葉(xie)(xie)(xie)(xie)或推(tui)出(chu)殺青葉(xie)(xie)(xie)(xie)，并將茶(cha)葉(xie)(xie)(xie)(xie)帶至一(yi)(yi)定高度(du)后拋(pao)下。風(feng)扇可正、反(fan)轉(zhuan)(zhuan)，以吹(chui)葉(xie)(xie)(xie)(xie)出(chu)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)或吸(xi)排(pai)(pai)濕氣。滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)的(de)兩端(duan)外圍(wei)設有擋煙(yan)(yan)(yan)圈，中心(xin)有一(yi)(yi)轉(zhuan)(zhuan)軸(zhou)，通(tong)過兩端(duan)的(de)輻條與筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)體(ti)(ti)相接，轉(zhuan)(zhuan)軸(zhou)由軸(zhou)承支撐于機(ji)架(jia)(jia)上。機(ji)架(jia)(jia)一(yi)(yi)般用(yong)(yong)角(jiao)鋼(gang)(gang)制(zhi)(zhi)作。爐(lu)(lu)(lu)灶由通(tong)風(feng)道(dao)、爐(lu)(lu)(lu)柵、爐(lu)(lu)(lu)膛(tang)、煙(yan)(yan)(yan)囪等(deng)組(zu)成(cheng)。滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)(tong)體(ti)(ti)置于爐(lu)(lu)(lu)膛(tang)內，爐(lu)(lu)(lu)膛(tang)頂部(bu)有拔風(feng)口與煙(yan)(yan)(yan)囪相通(tong)。110型(xing)殺青機(ji)傳動配用(yong)(yong)功率(lv)(lv)1.1千瓦，投葉(xie)(xie)(xie)(xie)量15~25千克(ke),風(feng)機(ji)功率(lv)(lv)0.75千瓦。