Can it be dealt with if there is a longitudinal crack on the surface of the conveyor belt roller?

Looking at this problem, I didn't figure out whether it was a longitudinal crack in the conveyor belt or a crack on the surface of the pulley, so I could only analyze it in two cases at the same time.

Longitudinal crack treatment method of conveyor belt

Step 1: Sand the damaged surface.

First, mark the contour of the wound, the marked part should be larger than the damaged part, and then use an angle grinder L1202 with a 125mmK23 tungsten steel grinding disc to polish the wound site until the surface of the injured part presents a certain arc and no protrusion.

Step 2: Clean the damaged surface Clean the grinding surface with a cleaning brush, use a cleaning agent to deeply clean the grinding surface, and wait for it to dry.

Step 3: Apply the adhesive.

The damaged surface is coated with the first cold vulcanized adhesive SK313 and allowed to dry completely. The damaged surface is coated with SK313 cold vulcanization bonding for the second time, and the semi-vulcanized layer of the repair strip is also coated with cold vulcanization adhesive SK313 at the same time.

Step 4: Attach the patch strip.

The adhesive surface of the repair strip is laminated along the damaged surface, and air entrapment is avoided as much as possible during the lamination process. After lamination, the compaction roller is used to roll from the inside and outside to exhaust and compact the air from the repaired surface.

How to deal with cracks on the surface of the drum

The surface of the drum is special, if it is not too troublesome, it is recommended to dispose of the original rubber sheet and re-laminate. Cold vulcanization can be used to lagging the cold vulcanized adhesive SK313 and the RIT rubber board with a semi-vulcanized CN layer for lagging to prevent the occurrence of cracks from the source.

If you want to be lazy, it is recommended to use liquid rubber SK360 for quick repair.

Step 1: Use a wallpaper knife to cut the rubber at a 45-degree angle along the damaged part of the rubber board, making sure that there is an edge tilt radius at the repaired part when viewed from above.

Step 2: Use a low-speed angle grinder with a tungsten carbide grinding disc to polish the repaired parts.

Step 3: Use a cleaner and brush to clean the area of the belt to be repaired.

Step 4: After the cleaner is completely dry, apply the primer to the area to be repaired, make sure that the area to be repaired is completely painted, and wait for the primer to dry.

Step 5: Pour the B component into the A component and stir it well for about a minute using a stir bar until it is completely incorporated.

Step 6: Slowly pour the mixture over the area to be repaired until it is level with the surface of the glue.

Step 7: After repairing, allow it to solidify for at least one hour at 21 degrees Celsius before turning it on.

Step 8: If necessary, use a medium-speed angle grinder to polish the repaired area after the repaired area is completely vulcanized.

The above steps seem complicated, but in fact, the operation is still very simple.

The first is whether the conveyor belt is textured or the roller is textured.

It may be that the roller is too small and the glue is too thick

Hello, dear, I am glad to answer for you: the cause of cracks in the belt conveyor belt conveyor belt caused by impurities in the conveyed materials. The impurities in the conveyed materials are mainly due to the poor quality of Yuchun coal, and the large pieces of coal and various impurities in the raw coal, such as ironware, wooden sticks, etc., cause about 70-80% of the tearing, so ensuring the quality of the source coal is the key to preventing tearing.

Belt tearing caused by improper installation of belt conveyor auxiliary equipment. There are many auxiliary equipment of belt conveyor, and the falling liner plate, the sharp iron adsorbed by the iron remover, and the improper installation of the cleaner may cause tearing and scraping to the conveyor belt. Belt tearing caused by the imperfect structure of the conveyor belt conveyor.

Due to the imperfect structure of the belt conveyor, the blanking point of the conveyor belt is large, the relative speed of the impurities in the coal flow is large, the impact force is large, and the sharp and hard ultra-long impurities are easy to be inserted into the conveyor belt at the blanking point, resulting in the tearing of the conveyor belt. Belt tearing caused by material blockage. The adapter chute is small, which is easy to hinder the passage of materials and impurities, causing the conveyor belt to tear.

Mistracking of the conveyor belt causes edge pulling.

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The reasons for the cracks in the conveyor belt conveyor belt: 1. Improper operation technology, which makes the conveyor belt subject to excessive mechanical impact or wear, resulting in sudden rupture of the conveyor belt or delay in cracking; 2. Improper selection of conveyor belt, so that the input power is greater than the load bearing capacity of the input belt; 3. The wear of the conveyor belt and the interface is serious, which reduces the strength of the conveyor belt and is easy to crack; 4. The protective device is damaged, resulting in local overheating of the conveyor belt, which will cause the conveyor belt to age and form cracks. <>