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The Benefits of Using Polyurethane Screens in Mining

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[Abstract]:
Polyurethane screens are used in many fields, such as mining mines, coal, etc. Polyurethane screens are used. When mining mines, it is of great benefit to choose polyurethane screens. Explain the bene
Polyurethane screens are used in many fields, such as mining mines, coal, etc. Polyurethane screens are used. When mining mines, it is of great benefit to choose polyurethane screens. Explain the benefits of using polyurethane screens in the mining process.
 
First, take measures to strictly control the coarse-breaking granularity and iron pinching. The installation of polyurethane screen can prolong the service life of the crusher.
 
The ore extracted from the mine is irregular and has a large grain size and cannot be directly ground into a ball mill. In order to reduce the cost of the ball mill, the ore must be crushed later, and then put into the ball mill to dissociate. The dissociation phase before entering the ball mill is the crushing stage of the beneficiation. The general crushing process is: coarse breaking -> middle breaking -> screening, sieving After the undersize -> ball mill; sieve after the sieve -> fine broken -> re-screening, which is the common three-stage closed circuit crushing process.
 
Coarse crusher or rotary cone crusher is generally used for coarse crushing. Before crushing, the crusher should generally be broken and must not exceed 650mm. In order to effectively control this size, crushers are installed with polyurethanes that meet the crusher size. Screens (also called polyurethane screens) for effective control. By controlling the particle size, it will reduce the resistance of the cracks, effectively protecting the jaws and preventing the crushing trucks.
 
Second, increase the buffer warehouse and material transport channel slope
 
The factors affecting the friction coefficient are generally: material properties, speed and temperature, load, vibration and smoothness, etc. Among them, we can change the material and load, as long as we change the slope of the buffer or material transport channel, increase the tilt angle In order to reduce the forward pressure, the frictional force is reduced in disguise, which can reduce the wear of the metal wall and increase the service life. Installing a polyurethane screen can achieve this effect.
 
Third, in the metal material through the wall, nailed a layer of polyurethane mesh to increase the service life of the metal wall
 
In the case that the buffer slope cannot be adjusted, in addition to increasing the hardness of the steel plate, we can nail the silo wall with a layer of 20mm--30mm thick polyurethane protection plate, according to the conclusion of the national authoritative department: "The hardness of polyurethane elastomer friction coefficient The impact is greater. Under normal circumstances, the lower the hardness, the higher the coefficient of friction, and the smoother the surface, the lower the friction. Because of the high hardness of iron ore, the polyurethane surface is smooth and elastic, which can effectively protect the buffer wall from damage.
 
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