Wear and anti-wear of equipment are a contradiction. Only by mastering the characteristics of commonly used wear-resistant materials and selecting appropriate wear resistant materials and anti-wear methods according to the wear properties and working conditions of different parts can the equipment be anti-wear. scientific method.
The hardness, particle size and geometry of the abrasive are determined by the process and cannot be changed easily. The focus of anti-wear lies in changing the properties of the target material and creating good external conditions. Choose appropriate wear-resistant materials
According to the principle of equipment wear, equipment is divided into pneumatic conveying equipment and material conveying equipment. The anti-wear of pneumatic conveying equipment is mainly to improve the hardness of surface materials. For material conveying systems dominated by fatigue wear, not only the material must be considered Hardness also concerns its toughness and elastic modulus.
Anti-wear materials can be divided into three major categories: metal and metal compounds, such as alloy steel with special properties; ceramics and their composite materials; plastics or rubber, especially rubber and polyurethane compounds. When a certain working condition is particularly complex and cannot be satisfied by a single material, these three materials can be combined with each other, such as composite materials of steel and rubber, ceramics and metals, and rubber and ceramics.
– Lower the angle of incidence
If conditions permit, the radius of curvature of the elbow can be increased. Generally, it is more appropriate to select 5 times the radius of curvature of the pipe diameter.
– Reduce material flow rate
Under the condition of ensuring that the dust in the pipe does not settle, try to control the wind speed in the pipe as much as possible. In many cases, the excessively fast flow rate is not a process requirement, but is caused by unreasonable design, such as high wind pressure, small pipe diameter design or blockage, etc.
The general principle that needs to be followed for equipment wear protection is that the hardness of the wear-resistant material selected should be much higher than the hardness of the abrasive.
Post time: Mar-24-2024