Drying module is one of the most important parts of the printing equipment. It directly restricts the printing speed and production efficiency of the printing press. Even if subtle problems occur in the drying equipment, it will have a great influence on the quality of the printed matter and the printability of the ink and the substrate. The following will introduce several major common failures of drying equipment.
1. Dryer does not absorb the material: One reason is improper installation of dryer equipment, dryer leak or improper installation; second reason is the design of the dryer equipment, dryer pressure is not enough. The solution to the former is to check whether the installation is correct with respect to the installation drawings and check whether there is a leak at the pipe interface and then solve it accordingly; the design problem of the dryer itself should be the responsibility of the dryer manufacturer.
2. Raw materials can not be dried by one time: The dryer is too small, and the raw materials in the dryer are too much; it may be that the wind pressure and flow of the air net are calculated incorrectly and wrongly; another reason is that The dryer operator is not familiar with the dryer, resulting in improper use of the dryer. For the first reason, the dryer can be replaced with a larger capacity; it can also be loaded less each time; it can also increase the temperature of the dryer, but this method is easy to cause the inside of the dryer On fire, it is also possible to change the dryer. For the second reason and the third reason, it can be solved by contacting the drying equipment manufacturer. The former can require the dryer manufacturer to recalculate the wind pressure and flow rate and then provide a design change plan according to the actual situation; the latter can be combined with drying The machine manufacturer negotiates the equipment instructions to learn how to use the dryer properly.
3. Drying equipment wasted fuel: If the equipment is poor insulation, you need to improve its insulation properties, you can package a layer of insulation material, if it is the design of the dryer or the dryer furnace design problems, need to Contact the manufacturer to resolve.
4. Uneven dry and wet materials may be caused by improper use of drying equipment, or it may be due to the influence of low temperature on the material of the dryer. For the former, it is necessary to strengthen the technical training for the operators so that they can master the operating skills; if the raw materials are formed into a group, the drying raw materials must be broken and then dried.
5. Dryer “spray gunâ€: This may be because the temperature of the dryer is too high, causing the fire in the drying device to burn; it may also be caused by the “blasting†phenomenon caused by the clogged dryer. For the former, the temperature of the dryer should be lowered. For the latter, the dryer equipment should be cleaned to keep the inside of the dryer unobstructed.
6. The material of the dryer is on fire: The material can't move and cause the fire in the dryer. It's also possible that the dryer's equipment is too small to achieve the drying effect and forcibly warm up, causing fire; it may be the dryer equipment. Improper use; in addition, there is a problem with the design principle of dryer equipment. For the first reason, you should check whether the dryer equipment is installed correctly, whether there is air leakage or increase the wind pressure; for the second reason, you can change the dryer, or you can replace the dryer with a larger capacity; for the operator is not Understand, can be familiar with the dryer, and re-learn the operation of the dryer; it is the problem of the device itself, must require the manufacturer to replace or modify the repair dryer.
1. Dryer does not absorb the material: One reason is improper installation of dryer equipment, dryer leak or improper installation; second reason is the design of the dryer equipment, dryer pressure is not enough. The solution to the former is to check whether the installation is correct with respect to the installation drawings and check whether there is a leak at the pipe interface and then solve it accordingly; the design problem of the dryer itself should be the responsibility of the dryer manufacturer.
2. Raw materials can not be dried by one time: The dryer is too small, and the raw materials in the dryer are too much; it may be that the wind pressure and flow of the air net are calculated incorrectly and wrongly; another reason is that The dryer operator is not familiar with the dryer, resulting in improper use of the dryer. For the first reason, the dryer can be replaced with a larger capacity; it can also be loaded less each time; it can also increase the temperature of the dryer, but this method is easy to cause the inside of the dryer On fire, it is also possible to change the dryer. For the second reason and the third reason, it can be solved by contacting the drying equipment manufacturer. The former can require the dryer manufacturer to recalculate the wind pressure and flow rate and then provide a design change plan according to the actual situation; the latter can be combined with drying The machine manufacturer negotiates the equipment instructions to learn how to use the dryer properly.
3. Drying equipment wasted fuel: If the equipment is poor insulation, you need to improve its insulation properties, you can package a layer of insulation material, if it is the design of the dryer or the dryer furnace design problems, need to Contact the manufacturer to resolve.
4. Uneven dry and wet materials may be caused by improper use of drying equipment, or it may be due to the influence of low temperature on the material of the dryer. For the former, it is necessary to strengthen the technical training for the operators so that they can master the operating skills; if the raw materials are formed into a group, the drying raw materials must be broken and then dried.
5. Dryer “spray gunâ€: This may be because the temperature of the dryer is too high, causing the fire in the drying device to burn; it may also be caused by the “blasting†phenomenon caused by the clogged dryer. For the former, the temperature of the dryer should be lowered. For the latter, the dryer equipment should be cleaned to keep the inside of the dryer unobstructed.
6. The material of the dryer is on fire: The material can't move and cause the fire in the dryer. It's also possible that the dryer's equipment is too small to achieve the drying effect and forcibly warm up, causing fire; it may be the dryer equipment. Improper use; in addition, there is a problem with the design principle of dryer equipment. For the first reason, you should check whether the dryer equipment is installed correctly, whether there is air leakage or increase the wind pressure; for the second reason, you can change the dryer, or you can replace the dryer with a larger capacity; for the operator is not Understand, can be familiar with the dryer, and re-learn the operation of the dryer; it is the problem of the device itself, must require the manufacturer to replace or modify the repair dryer.
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