The hazards of dust removal pipe wear
The dangers of dust collection pipe wear cannot be ignored. This kind of wear phenomenon mainly occurs in local special-shaped construction areas such as elbows and tees of pipelines. These areas are prone to wear and tear on the inner wall of the pipeline due to changes in the airflow direction and acceleration of the flow rate. Although the wear of straight pipes is relatively weak, long-term dust accumulation and airflow erosion will also cause certain damage to them.
Wear and tear will not only cause air leakage in the system and reduce dust removal efficiency but may also seriously damage the function of the dust removal system. When the pipeline wear is serious, the air leakage will increase, making it difficult for the dust removal system to maintain a stable operating state, thus affecting the effective control of dust sources. This will not only lead to an increase in environmental pollution problems but may also affect the production efficiency of enterprises and employees' working environment.
Factors affecting dust removal pipe wear
1. The influence of wind speed in the pipe: The wind speed in the pipe is the key factor that determines the movement and collision speed of dust particles. Excessively high wind speeds may cause dust particles to hit the pipe walls at higher velocities, thereby increasing wear. Conversely, wind speeds that are too low can cause dust particles to deposit on the pipe walls, which can also lead to wear in the long term. Therefore, it is essential to choose an appropriate wind speed.
2. Influence of dust concentration: Dust concentration is also an important factor affecting wear. High concentrations of dust mean more particles inside the pipe collide with the walls, increasing the potential for wear. However, dust concentrations that are too low may result in reduced wear in certain areas within the pipe because collisions are less frequent and less severe.
3. Influence of incident angle: The incident angle refers to the angle at which dust particles hit the pipe wall. Different incident angles will lead to different wear effects. For example, particles hitting the wall at right angles may cause more wear, while impacts at oblique angles may reduce wear. Therefore, by adjusting the duct design or optimizing the airflow distribution, the angle of incidence can be controlled, thereby reducing wear.
4. Influence of friction coefficient: The friction coefficient is related to many factors such as the hardness of the dust particle material, the hardness of the wall material, the surface geometry of the particles, and the surface roughness of the pipe. A higher coefficient of friction usually means greater wear. Therefore, choosing materials and surface treatments with lower friction coefficients can effectively reduce the wear of dust collection pipes.
Measures to prevent wear and tear
1. On the premise of ensuring that the dust in the pipe does not settle, try to control the wind speed in the pipe.
2. Reasonably design the vacuum hood structure and exhaust position, control the daily wind speed of the hood, and try to avoid excessive and coarse dust particles in the pipeline.
3. Design a suitable elbow curvature radius, and appropriately increase the wall thickness of 1 to 2 mm at the elbow or tee.
4. Use wear-resistant composite pipes, such as wear-resistant ceramics, wear-resistant cast iron, wear-resistant cast stone, wear-resistant rubber, wear-resistant coating, etc.
The wear-resistant ceramic pipes produced by our company are designed to solve the problem of particularly serious wear and tear in powder and slurry conveying systems. The outer shell is made of steel and the lining is alumina ceramics with excellent wear resistance. It not only plays the role of high-temperature wear resistance, but The corrosion resistance performance also brings into play the characteristics of high strength and high toughness of steel pipe materials. The integrated design makes it easy to replace and install.
This kind of wear-resistant ceramic composite pipe has broken through the long-standing anti-wear problem of industrial pipelines, so it has replaced most elbows and pipes in pneumatic conveying systems in thermal power, metallurgy, steel, coal, cement, petroleum, chemical, and other industries as soon as it came out. It has been proven by hundreds of customers that the use of wear-resistant ceramic pipes can effectively extend the service life of the equipment by more than 10 times.
