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Key points of inspection and maintenance before and after use of tea dryer

Publish Time: 2023-01-29
After each use of the tea dryer, lubricating grease should be injected into each lubrication point, and the lubricating grease should be kept clean. Apply engine oil to the sleeve roller chain for lubrication every shift, and check whether the specified oil level is maintained in the reducer box. Before the end of each shift of tea baking, the residual tea leaves on the upper leaf conveying part and the uniform impeller should be cleaned. After the end, the dust accumulated inside, outside and around the tea dryer should be cleaned.

It should be overhauled after one year or 1000 hours of use. The maintenance steps and precautions are as follows:
(1) It is strictly forbidden to use a hammer to directly hit the parts during disassembly.
(2) Two people should work together to assemble and disassemble the 100-page drying plate, separate the two sides of the observation door, hold up the dragging chain, and pull it outward, so that the 100-leaf plate and the pin of the traction chain are separated, and then disassemble the 100-sheet baking plate .
(3) Remove the traction chain
(4) Remove the drive shaft.
(5) Remove the driven shaft.
(6) The disassembled parts should be carefully cleaned. The grease remaining in the oil holes and oil tanks should be cleaned up and properly stored to prevent collisions.
Check the tea dryer before use:
1. Before starting the tea dryer each time, check whether there are any obstacles in the moving parts and whether there are hard debris left in the oven.
2. The hot air generator can only be turned on when the temperature reaches the temperature required for tea baking, and the oven should be fully preheated before the leaves are loaded.
3. There should not be too many opponents in the upper leaf, and empty boards should not appear. The tea leaves to be baked must be deblocked and sieved to remove hard debris such as bamboo whistle.
4. The thickness of the leaves and the time of the whole baking process are selected according to the degree of dryness of the baked tea leaves (that is, the moisture content requirement). Generally, it is better to spread thinly and quickly.
5. The position of the handle of the movable damper should be at the place where the tea is blown clean.
6. When the upper leaf conveying device returns to the tea bucket during work, it is better to open it slightly, and it should be opened regularly for cleaning.
7. Adjusting the damper can control the total air intake volume, and it is better to adjust the position of the damper handle so as not to blow the baked goods seriously.
8. The stover should be added less frequently to ensure the constant temperature of the hot air.
9. After the drying operation is completed, turn off the fan when the temperature of the hot air drops below 60 degrees Celsius, let the remaining tea leaves in the oven be removed, and then stop the main machine from rotating. Always pay attention to the heating of the bearings of the motor, fan, reducer and individual components during exercise. The temperature rise of the main engine motor shall not exceed 100°C, the temperature rise of the motor and fan bearing housing shall not exceed 65°C, and the temperature rise of the reducer shall not exceed 60°C. If any abnormal impact and noise are found during operation, the machine should be shut down for inspection. If a fault occurs, it must be shut down immediately to find out the cause quickly. Even if it is resolved, the house will run with a disease.
10. Check the fire tube ablation and furnace wall cracks to ensure the normal operation of the heating furnace.
11. During the operation of the tea dryer, the connecting screws of each part, the fastening of the bolts, the tightness of each chain and the working condition of the pressing wheel should be checked frequently, and adjusted at any time.
12. Always check the working position of the baking plate, and there must be no displacement, jamming and inversion.
13. Regularly check the working conditions of various transmission parts and wearing parts, and repair or replace them in time.

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