殺(sha)青(qing)主(zhu)要目(mu)的(de)是通過高溫破壞(huai)和鈍化(hua)鮮葉中(zhong)的(de)氧化(hua)酶活性，抑制(zhi)鮮葉中(zhong)的(de)茶多酚等的(de)酶促氧化(hua)，防(fang)止烘干(gan)過程中(zhong)變色(se)。同時散發青(qing)臭味，促進良好(hao)香氣的(de)形成。殺(sha)青(qing)機械多采用微(wei)波殺(sha)青(qing)機、滾筒殺(sha)青(qing)機和燃氣炒(chao)青(qing)機。

微波殺青機

微波殺青(qing)設(she)備(bei)是一種新型的(de)殺青(qing)設(she)備(bei)，殺青(qing)速(su)度(du)快、效(xiao)率(lv)高(gao)、效(xiao)果(guo)好。在(zai)殺青(qing)的(de)同(tong)時，還可(ke)以除去約(yue)10%的(de)鮮(xian)葉水分(fen)。微波殺青(qing)機的(de)原理主要是利用迅速(su)升溫來(lai)鈍化(hua)鮮(xian)葉的(de)的(de)活性氧化(hua)酶，抑(yi)制(zhi)鮮(xian)葉中的(de)茶(cha)多酚等酶加速(su)氧化(hua)，防止在(zai)后(hou)續烘干(gan)過程(cheng)中發生色(se)澤嚴重改變(bian)，同(tong)時揮發鮮(xian)葉的(de)腥草(cao)味，使茶(cha)香(xiang)更好的(de)形成。采用微波殺青(qing)設(she)備(bei)對茶(cha)葉、菊花、金銀花等農(nong)產品進行殺青(qing)，平均(jun)每公斤(jin)的(de)量所(suo)需要的(de)電費不到三毛錢，而且殺青(qing)效(xiao)果(guo)顯著，產品色(se)澤、外形和香(xiang)氣(qi)都屬上佳品。

滾筒殺青機

烏龍茶(cha)殺(sha)青(qing)(qing)常用(yong)(yong)90型(xing)(xing)(xing)與(yu)(yu)110型(xing)(xing)(xing)兩種(zhong)機(ji)型(xing)(xing)(xing)，該機(ji)結構緊湊、操作(zuo)方便、效率(lv)(lv)高。爐(lu)(lu)火直(zhi)接加熱轉(zhuan)(zhuan)動(dong)的(de)(de)筒(tong)(tong)(tong)(tong)(tong)(tong)體(ti)，茶(cha)葉(xie)在筒(tong)(tong)(tong)(tong)(tong)(tong)體(ti)內(nei)(nei)靠摩擦和筒(tong)(tong)(tong)(tong)(tong)(tong)體(ti)轉(zhuan)(zhuan)動(dong)的(de)(de)離(li)心力在滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)內(nei)(nei)拋轉(zhuan)(zhuan)，并吸收熱量達到殺(sha)青(qing)(qing)目的(de)(de)。殺(sha)青(qing)(qing)適度后，反(fan)轉(zhuan)(zhuan)滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)，利用(yong)(yong)筒(tong)(tong)(tong)(tong)(tong)(tong)壁的(de)(de)螺旋(xuan)導葉(xie)板(ban)將(jiang)茶(cha)葉(xie)推出(chu)筒(tong)(tong)(tong)(tong)(tong)(tong)外。同(tong)時，借助(zhu)滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)末端的(de)(de)風(feng)(feng)扇(shan)將(jiang)筒(tong)(tong)(tong)(tong)(tong)(tong)內(nei)(nei)茶(cha)葉(xie)排凈。該機(ji)由(you)滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)、傳動(dong)裝置(zhi)、風(feng)(feng)扇(shan)、機(ji)架(jia)、爐(lu)(lu)灶等部分組成。滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)用(yong)(yong)鋼(gang)板(ban)卷制而成，內(nei)(nei)壁焊有導葉(xie)板(ban)，導葉(xie)角為(wei)24°，其作(zuo)用(yong)(yong)是幫助(zhu)進葉(xie)或(huo)推出(chu)殺(sha)青(qing)(qing)葉(xie)，并將(jiang)茶(cha)葉(xie)帶(dai)至(zhi)一(yi)定高度后拋下。風(feng)(feng)扇(shan)可正、反(fan)轉(zhuan)(zhuan)，以吹葉(xie)出(chu)筒(tong)(tong)(tong)(tong)(tong)(tong)或(huo)吸排濕氣。滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)的(de)(de)兩端外圍設(she)有擋(dang)煙圈，中心有一(yi)轉(zhuan)(zhuan)軸(zhou)，通過兩端的(de)(de)輻條與(yu)(yu)筒(tong)(tong)(tong)(tong)(tong)(tong)體(ti)相接，轉(zhuan)(zhuan)軸(zhou)由(you)軸(zhou)承支撐于(yu)(yu)機(ji)架(jia)上(shang)。機(ji)架(jia)一(yi)般用(yong)(yong)角鋼(gang)制作(zuo)。爐(lu)(lu)灶由(you)通風(feng)(feng)道、爐(lu)(lu)柵(zha)、爐(lu)(lu)膛、煙囪(cong)等組成。滾(gun)(gun)筒(tong)(tong)(tong)(tong)(tong)(tong)體(ti)置(zhi)于(yu)(yu)爐(lu)(lu)膛內(nei)(nei)，爐(lu)(lu)膛頂部有拔風(feng)(feng)口與(yu)(yu)煙囪(cong)相通。110型(xing)(xing)(xing)殺(sha)青(qing)(qing)機(ji)傳動(dong)配用(yong)(yong)功率(lv)(lv)1.1千瓦(wa)，投葉(xie)量15~25千克,風(feng)(feng)機(ji)功率(lv)(lv)0.75千瓦(wa)。