Reasons for the fracture of the sealing ring of the vibrating dewatering screen
2021-07-21
The sealing ring is an indispensable and vulnerable part of the vibrating screen. Sealing rings are commonly used in U-shaped and V-shaped, which are mainly used on the frame and dust cover. The sealing ring is to better seal the connection between the vibrating screen frame, prevent material leakage, and at the same time reduce the destructive force of the vibrating screen on the screen frame during vibration. Usually, according to the different characteristics of the material, three different vibrating dewatering screen sealing rings can be selected to achieve the expected screening effect. The user often encounters the rupture of the sealing ring of the vibrating screen during use. What causes the rupture of the sealing ring? Today, Longzhong will analyze the reasons for everyone.
Classification And Characteristics Of The Sealing Ring
Generally, according to the different characteristics of the material, three different materials of the rotary vibrating screen seal ring can be selected to achieve a better screening effect. The three types of seals are rubber seals, silicone seals, and polyurethane seals. These three types of sealing rings have different characteristics. According to the characteristics of the material, the correct selection of the sealing ring can prolong the service life of the sealing ring and effectively reduce the production cost.
1. Rubber sealing ring
The rubber seal ring is a seal ring accessory often used in rotary vibrating screen equipment. The main reason is its low cost and stable performance. However, when the screening materials are corrosive, high temperature, oily, etc., rubber seals are not suitable. Generally, if the user material has no special requirements, the vibrating screen manufacturer chooses to install the rubber sealing ring when the rotary vibrating screen leaves the factory.
2. Silicone sealing ring
Silicone seals are relatively expensive. However, the silica gel sealing ring has the advantages of stable chemical properties, strong thermal stability, high adsorption performance, and relatively high mechanical strength. If the material selected by the user has relevant characteristics, the silica gel sealing ring should be selected.
3. Polyurethane sealing ring
A polyurethane sealing ring is a sealing ring that is not often used in rotary vibrating screen equipment. The main reason is the higher cost. Polyurethane sealing ring has the characteristics of oil resistance, corrosion resistance, and high-temperature resistance. Users who screen materials with relevant characteristics should choose to install a polyurethane sealing ring.
Reasons For The Fracture Of The Sealing Ring Of The Vibrating Dewatering Screen
The vibrating dewatering screen is to seal the equipment, reduce friction and shock the upper and lower parts. The user has the problem of fracture when using the sealing ring, which is caused by the following reasons.
1. Quality problems of seals
Nowadays, the common seals are made of silica gel, but the quality of the seals used by different vibrating dewatering screen manufacturers is not the same. If the material of the seal is hard or the quality of the silica gel is not good, the equipment will break after running for a while. If such problems often occur, they will not only have a certain impact on production but also increase the input cost of related accessories. Therefore, when choosing a seal, you must choose a regular accessory supplier.
2. The production problem of vibrating dewatering screen frame
In the production process, such as the welding or grinding of the screen frame, there are burrs. In addition to the sealing effect, the seal has shock absorption and cushioning effect on the upper and lower screen frames. For example, when the screen frame is produced, uneven edges or incomplete grinding will cause unevenness or burrs. In this way, the continuous friction of the screen frame during the operation of the equipment will cause the seal to break. When encountering such a problem, the user can check whether the edge of the screen frame is flat or has burrs, and if found, it can be polished and corrected.
3. The size of the sealing ring
The seals used by vibrating dewatering screens with different dimensions are also different. If the size of the equipped seal is different from that of the screen frame, it will increase the fatigue of the seal and cause it to break.
Through the above analysis, you should know the reason for the fracture of the seal ring of the vibrating dewatering screen. Hope these analyses can help you solve the problem. If you have any other questions about the selection of the vibrating screen, please feel free to consult our customer service online at any time.
