Why use uhmw pe plate as coal bunker lining?
Coal bunker lining, one is that the wet pulverized coal starts to bond on the silo wall, layer by layer, and then the shape of the mouse hole is formed in the silo, and then the coal will cause the silo to be blocked; the other is Due to the large internal frictional resistance between the wet coal powder blocks and the external frictional resistance between the wet coal and the wall, when the coal bunk is filled with coal, the coal outlet of the lower conical section is similar to stuck and rusted. The shape of the arch (commonly known as the bridge). When the brakes are opened, only a small part can be put down, and the upper coal is blocked by the arching.
Coal bunkers in coal mines, power plants, and docks are basically cast from concrete. The surface is not smooth, the friction coefficient is large, and the water absorption is high. This is the main reason for the frequent bonding and blockage. Especially in the case of soft coal mining, pulverized coal and large water, the blockage accident is particularly serious.
The high wear-resistant uhmw coal bunker lining plate is widely used in electric power, paper making, port, dock, coal, textile, chemical, coking, environmental protection and so on. Its service life is longer than steel, and its wear resistance is 3-1 times that of carbon steel and stainless steel.
Self-lubricating, so the friction coefficient is small, no water absorption, high impact strength, no bonding materials; alkali, acid, salt corrosion; hygienic non-toxic, non-aging, light weight, low temperature resistance.
Issues to consider when installing high wear-resistant UHMW coal bunker liners
High wear-resistant UHMWPE coal bunker liner products should be installed with no less than ten bolts per square meter.
The gap between the plates of each high wear-resistant coal bunker shall not exceed five millimeters.
During the installation of the high wear-resistant coal bunker liner, the bolt head plane requirements of the liner must be lower than the plate surface.
Precautions for use
In operation, it is necessary to always keep the material in the warehouse of the material entering and closing the material, and always keep the material storage in the warehouse more than one-half of the capacity of the entire warehouse.
For the first time, the material in the silo is stored to two-thirds of the capacity of the entire warehouse, and then discharged.
The hardness of the various materials is different. The material and flow rate shall not be changed at will. If it needs to be changed, it shall not be greater than 12% of the original design capacity. Changing the material or flow rate at will will affect the service life of the UHMW liner.
-It is strictly forbidden to directly impact the liner.
-Do not use external forces to damage its structure and loosen fasteners at will.
-The ambient temperature should not be greater than 100 °C.
-When the temperature is low, please pay attention to the static time of the material in the warehouse to avoid the formation of frozen blocks.
-The time of the material in the quiescent state of the warehouse should not exceed 36 hours (please do not stay in the warehouse for viscous materials to prevent the knot), and the material with water content less than 4% can prolong the rest time.