Green tea fixation machine is a machine used to fix tea leaves. It uses high temperature and pressure to destroy the enzymes and kill bacteria in the tea leaves to maintain the freshness and quality of the tea leaves. The following is a detailed introduction to the relevant knowledge of the tea fixing machine.
1. Types of tea fixation machine
There are different types of tea fixation machine according to different classification methods. The following are some common classification methods:
According to the structural form: Green tea fixation machine can be divided into three types: drum type, trough type and steam type. The drum-type fixing machine is the most commonly used one. It has the characteristics of simple structure, easy operation, and large output; the trough-type fixing machine is an intermittent fixing machine, suitable for small and medium-sized tea factories and individual tea farmers; the steam-type fixing machine It is a high-temperature rapid curing machine, suitable for tea varieties that require rolling and other processes immediately after curing.
According to the operation mode: Green tea fixation machine can be divided into two types: manual and automatic. The manual fixing machine requires manual control of factors such as temperature, time, and amount of leaves, and the operation is relatively cumbersome; the automatic fixing machine uses an intelligent control system that can automatically control factors such as temperature, time, and amount of leaves, and has higher production efficiency.
According to the heating method: Tea fixation machine can be divided into two types: electric heating type and gas type. The electric-heated finishing machine uses electric energy for heating, which is easy to operate and hygienic, but consumes a lot of energy. The gas-type finishing machine uses gas for heating, which has fast heating speed and high production efficiency, but requires a certain fuel supply guarantee.
2. Structure of tea fixation machine
A complete tea greening machine usually consists of the following main parts:
Heating device: The heating device is the core part of the tea curing machine. It usually consists of an electric heating tube or a gas burner. Electric heating tube heating requires the use of electric energy, which has fast heating speed and easy operation, but consumes a large amount of energy. Gas burner heating requires the use of gas, which has fast heating speed and high production efficiency, but requires a certain fuel supply guarantee.
Transmission device: The transmission device is a device used to drive the operation of the tea fixing machine. It usually consists of a motor and a reducer. The motor provides the source of power, and the reducer is used to reduce the rotation speed so that rotating parts such as drums rotate more smoothly.
Ventilation device: The ventilation device is a device used to extract steam and smoke generated during the tea curing process. It usually consists of an exhaust fan and a chimney. An extractor fan pulls steam and smoke out of the machine and out through the chimney.
Temperature control system: The temperature control system is a device used to control the temperature during the tea curing process. It usually consists of a temperature sensor and a control panel. The temperature sensor can detect in real time the temperature is measured and transmitted to the control panel, which can automatically adjust the temperature according to the set temperature range.
Time control system: The time control system is a device used to control the time during the tea curing process. It usually consists of a time relay and a control panel. The time relay can control the running time of the machine, and the control panel can automatically adjust the time according to the set time range.
Leaf throwing device: The leaf throwing device is a device used to throw tea leaves into the tea fixing machine. It usually consists of a leaf throwing port and a leaf throwing device. The leaf throwing port is the entrance for tea leaves to be thrown in. The leaf throwing device can evenly throw tea leaves into rotating parts such as drums.
Body and base: The body and base are the shell and supporting parts of the tea curing machine. It is usually made of metal materials and is used to fix the entire machine and enhance its stability.
3. How to use the tea fixation machine
When using a tea fixing machine, you generally need to follow the following steps:
Debugging the green tea fixation machine. Before finalizing, the machine status should be checked to ensure that everything is normal before starting the machine.
According to the different processes in different places, adjust the tilt angle and put in a small amount of fresh leaves to determine the curing time. Generally speaking, green tea should be brewed for 1 to 2 minutes.
Coal is used as the main fuel to heat up. The flame gradually burns out, making the temperature of the shell and cylinder around the fixing machine relatively uniform. After a few minutes, use a thermometer to measure the temperature inside the cylinder. Experiments have shown that when the leaf temperature reaches 85°C, the enzyme completely loses activity. Therefore, it is generally appropriate to control the temperature inside the cylinder at around 110℃-120℃.
Before frying, check each transmission component and add lubricating oil to each lubrication point.
Press the start switch and let the spindle test run. Open the liquefied gas gate and ignite the liquefied gas. The fire should be strong and steady.
When the temperature of the cylinder at the leaf outlet reaches about 280°C, 5-10kg of leaves can be thrown in for frying. The amount of leaves should be increased at the beginning to avoid scorched leaves. Then observe the greening situation from the leaf outlet and adjust the amount of leaves appropriately.
After frying, press down the operating lever to push down the drum outlet, and the tea will be automatically dispensed.
After frying, close the gas valve, extinguish the open flame, stop the machine, and remove the remaining leaves in the tube.
Please adjust the specific operations according to the actual situation, and seek professional help when necessary.
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