The continuous rain and rain affects the spring tea picking machine and drying equipment.

When the spring is cold, many areas have been caught in the rainy weather for several days. When the value of spring tea is picked and listed, the quality of tea has become the focus of everyone's attention. According to professionals, rainy weather tends to increase the water content of tea leaves, and the requirements for subsequent processing are improved; the prevention and control of tea pests and diseases becomes more and more difficult; once the drainage is not smooth, it is easy to appear wet stains, etc., affecting the growth of tea roots... Of course, rainy weather Not only does it bring all the disadvantages, the rainy weather keeps the temperature fluctuations within a certain range, making the tea grow slowly, which is more conducive to the accumulation of nutrients. Below, the author proposes a solution to the adverse effects of the rainy weather on spring tea.

Rain or let the tea picking period focus on the tea picker to help increase efficiency
As mentioned earlier, the rainy weather will make the tea grow slowly. If the weather is fine in the later period and the temperature rises rapidly, the tea is easy to concentrate and germinate, resulting in less concentrated production during the production period and affecting the economic income of the tea farmers. In addition, for the tea gardens that have been mined, it is necessary to use the cloudy or rain stop to speed up the picking, which requires high efficiency for the picking workers.

From the past years, the contradiction between tea picking and employment has become a bottleneck in the development of the tea industry, and it is imperative to accelerate the development of tea picking mechanization. According to the introduction of tea farmers in a certain place, a tea picking machine picks more than 5,000 kilograms of fresh leaves every day, which is equivalent to the amount of manual picking by more than 100 tea pickers a day. High efficiency makes it quick to adapt to the high-intensity work when picking tea leaves. The tea picking machines commonly used in the current market are classified into two types: selective tea picking machines and non-selective tea picking machines according to different picking methods. For selective tea picking machines, it is necessary to use computer vision systems to identify tea tree shoots and achieve positioning picking. This type of equipment not only ensures the integrity of the leaves, but also fully automates the entire picking process, but the current machine vision recognition efficiency Still have to be improved.

In general, the tea-picking machine replaces labor with mechanized operations, which not only reduces labor costs, but also doubles the efficiency of tea picking. At present, there is an urgent need to improve the quality of the tea picked by the tea picker, so that the tea picking equipment can serve high quality tea.

Tea processing problems, drying equipment needs to force
When it is picked, it is easy to make the water content of the fresh leaves of the tea high, which makes the technical difficulty of the later processing increase greatly. If the processed tea leaves are too high in moisture, they are easily mildewed and difficult to store. According to the person in charge of Beilun Tea Factory, in response to this phenomenon, the company has taken technical remedial measures, one is to extend the time of aikild, and the other is to strictly dry the process and promote water evaporation.

The fresh tea leaves picked up on the same day are evenly distributed in a cool and ventilated environment, so that the tea leaves naturally emit moisture and grass gas, which is called adipose, also called withering. In the rainy weather, the air humidity is relatively large, and the appropriate extension of the ablation time can further reduce the moisture content of the fresh tea.

In fact, the tea making process is also a drying process. Like killing, it is necessary to kill the leaf cells with high temperature to stop the fermentation; the drying process needs to evaporate the water; the fire in the refining process needs to dry the tea leaves again. Taking tea greening equipment as an example, the current market for killing equipment mainly distinguishes energy sources, such as microwave tea killing equipment, heat pump tea killing equipment, and electric killing machine. Among them, microwave and heat pump as energy sources are welcomed by more consumers because of their energy saving and environmental protection characteristics. These equipments can adjust the process parameters according to different seasons, different varieties, different picking time, etc., so that the tea can achieve the desired killing effect.

With the improvement of the mechanization of tea processing equipment, the problem of tea quality caused by complex weather has a reliable solution. It is also expected that there will be more perfect tea processing equipment in the future to promote the further development of tea processing and production.