What is a coal bunker lining plate
Coal bunker lining plate is a protective board installed inside the coal bunker, mainly used to protect the coal bunker wall, reduce the friction and impact of coal on the bunker wall, and prevent coal from sticking and accumulating inside the bunker.
Advantages of coal bunker lining plate
Self lubrication. The surface friction coefficient is low, and it has good self-lubricating properties. This makes it easier for coal to slide and flow in the coal bunker, reducing the blockage and sticking of coal in the bunker. Compared with traditional metal lining plates, there is no need to add additional lubricants, which reduces maintenance costs.
Chemical stability. Has good tolerance to chemicals in coal. Coal may contain some moisture, sulfides, and other components, and UHMWPE material liners can remain stable in such chemical environments without corrosion or chemical reactions.
Limitations of coal bunker lining plate
Heavy load pressure limitation. Although the coal bunker liner has a certain strength, it has certain limitations in withstanding excessive pressure. When the coal accumulation in the coal bunker is too high, or in some large coal bunkers, the bottom lining plate may experience local deformation due to excessive pressure. This deformation may cause the connection between the lining plates to loosen, further affecting the sealing of the coal bunker and the normal flow of coal.
Uneven bearing problem. If coal is unevenly distributed in the coal bunker, it will cause excessive pressure on the lining plate locally. For example, in the area near the coal bunker feed inlet where coal is concentrated, the impact and pressure on the lining plate are much greater than in other areas. Long term exposure to such uneven load-bearing conditions can lead to increased wear and even damage to the lining plate.
The main function of the coal bunker lining plate
The coal bunker lining plate is mainly made of wear-resistant materials such as ultra-high molecular weight polyethylene, which have functions such as anti-wear, improving coal flowability, and anti bonding. It can protect the warehouse wall from coal wear and impact, prevent coal blockage and adhesion with self-lubricating properties, reduce cleaning costs, and improve coal loading and unloading efficiency.
The working principle of the coal bunker lining plate
The coal bunker lining plate is mostly made of ultra-high molecular weight polyethylene material, which has a long molecular chain structure and high toughness to resist coal impact wear, low friction coefficient self-lubricating characteristics to improve coal flow, hydrophobic surface anti bonding, and protects the coal bunker wall.
There are various types of coal bunker lining plate , how to choose the one that suits you
一、Consider the environmental factors of the coal bunker
1.Temperature environment. If the coal bunker is located in an environment with significant temperature changes, such as in places with large temperature differences between day and night or close to heat sources, it is necessary to choose lining plates with good temperature adaptability.
2.Coal characteristics. Choose based on the characteristics of coal. For high viscosity coal, it is preferred to choose lining plates with more outstanding self-lubricating and anti bonding effects, such as ultra-high molecular weight polyethylene lining plates, which can effectively reduce coal adhesion.
二、Pay attention to the performance indicators of the lining board
1.Wear resistance. This is a key performance indicator for coal bunker liners. Compare the wear resistance coefficients of different lining plates and prioritize the lining plate with high wear resistance performance. Usually, ultra-high molecular weight polyethylene lining plates have excellent wear resistance, with a much higher wear resistance coefficient than ordinary plastics and some metal materials, which can effectively reduce the wear of coal bunker walls.
2.Impact resistance. Good impact resistance can ensure that the lining board remains intact under frequent coal impacts. Check the impact strength index of the lining plate and select the lining plate that can withstand the maximum impact energy of coal in the coal bunker.
三、Based on the structure and scale of the coal bunker
1.Coal bunker size. For large coal bunkers, the lining plate needs to withstand greater pressure and more coal impact. At this time, a stronger and thicker lining plate should be selected to ensure that it can effectively disperse pressure and avoid local deformation.
2.Coal bunker shape and structure. If the coal bunker structure is complex and has many special shapes such as corners and slopes, it is necessary to choose lining plates that are flexible, easy to install, and fit these special shapes.
四、Consider installation and maintenance costs
1.Installation difficulty. Choosing a lining plate with a simple installation method and low installation requirements can save installation costs.
2.Maintenance cost. including factors such as the service life of the lining board and the difficulty of replacement. Long service life liners can reduce the frequency of replacement, thereby lowering costs.