FOB Price: US $ 1,000 - 10,000 / Set;
Min.Order Quantity: 1 Set/Sets;
Supply Ability: 300 Set/Sets per Year;
Port: qingdao;
Payment Terms: L/C,T/T.
Dryer machine / industrial minrowave small tea leaf processing machine ---tunnel continuous type dryer machine
![]()
1, the tea microwave drying equipment in tea fixing
Production of green tea, oolong tea, need to crank up the heating process to inactivate the polyphenol oxidase activity, evaporate some water, grass volatile odor, soften tissue. The current production of the common Roasted way fixing process, few places steam fixing mode.
The results show that good quality tea kill infertility and Roasted way microwave processing, no significant difference, but the microwave fixation short time (for the time Roasted 1/8) can be carried out continuously. The steam fixing since the high water content of steam, the outer material affected by high temperature, so the tea fixing after almost no weight loss, damaged part of chlorophyll, nutrients contained in raw and partly with condensate drain, quality is not ideal.
Microwave in tea fixation is mainly thermal effects it produces. When the magnetron generating microwaves, shine tea affected microwave periodically changing the polarity of the molecules inside of tea, with the microwave periodic activities. Due to the high frequency of the microwave, make tea inside the high-speed collision of molecules to produce a large amount of frictional heat rapidly increase the temperature of the material, so as to achieve rapid warming effect.
2, fixing tea microwave drying equipment in the drying of tea
Generally hot air drying process material external heat, the surface is dry, the heat transfer inward, in the opposite direction of water diffusion transfer its direction, affecting the evaporation of water outside. The microwave is an internal heating, high water content sites warming faster. Therefore, in the microwave drying process, the moisture from the inner to the outer layer of fast migration velocity, drying faster than hot air drying. Application of tea drying microwave drying has the following advantages:
(1) fast drying; good
(2) product quality; the tea surface temperature is not too high, less chlorophyll changes, emerald green color and storability, less aroma loss, uniform drying ; the same time as the water evaporates fast, easy to form a porous, good rehydration products, when the contents of soluble tea out
3, the tea microwave drying tea fixing equipment in the insecticidal and mildew
Tea in the storage and transportation process prone to insects, insect contamination phenomenon often occurs in autumn tea Ottawa heap process. Insecticide fumigation method commonly used drugs in the past, but there is the problem of drug residues. Microwave treatment can achieve good insecticidal effect, insecticidal effect is closely related to tea and tea insects and dielectric properties of the parasite, when the water content of less than 12 percent of tea, help enhance the insecticidal effect.
Tea in processing and storage in damp moldy easily reduced quality. The experiment shows that the microwave technique of tea fungus has excellent killing effect.
4, tea microwave drying fixation device application (teabag) tea beverages in the sterilization
Tea drinks in the conventional thermal sterilization, due to high temperature long time, make tea aroma suffer large losses. Microwave sterilization, with good results.
Microwave sterilization is the result of the microwave thermal effect and biological effects of the role. Microwave thermal effects of microorganisms to make protein denaturation, resulting in microbial death; and the biological effect of microwave on microbial microwave electric field changes the size distribution of the membrane section, affecting the concentration of electrons and ions around the cell membrane, thus changing the permeability of cell membranes performance, microbial growth inhibition and death. Also microwave electric field strong enough to do can lead to biological DNA, RNA hydrogen bonds relaxation, breakage and recombination. Thereby inducing genetic mutations. Because use of the damaging effects of microwave sterilization thermal effects and non-thermal effects of biological, therefore, the sterilization temperature is lower than the conventional method, which is conducive to maintaining the aroma of tea drinks.
4,Packing and Shippong :
1. Delivery Term: FOB Qingdao
2. Delivery time: 30 work days after having received payment
3. Package: wooden cases
4. Payment Terms: 50% deposit by T/T,balance 50% paid by T/T before shipment.
5. Transportion : By vessel