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        Replace wet granulator rubber liner precautions
        
							
        【Product name】
        
							
						
        
						
        
							
          
								
        • Release time：2022-04-13
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        Detailed introduction
        
                            The life of the rubber liner is usually only 0.5 times higher than that of the high manganese steel liner in the two-stage mill, the life of the rubber liner is generally 2 to 3 times higher than that of the high manganese steel liner. The disassembly method of rubber lining plate and gold and steel lining plate is the same. The specific disassembly process is as follows: The disassembly method of rubber lining plate of pelletifier 1 Clean out unnecessary raw materials in the mill, and pour out the steel ball and other substances in the ball mill. 2 The rubber lining plate of the granulator is distributed in the ball mill in different shapes and sizes, arranged along the inner wall circumference, and there is a wedge iron on the cloth at 1/4 of each country. When disassembling, the parking position should be on the horizontal center line of the fixed wedge. 3 From one end of the feed or discharge port, remove the bottom adjusting wedge iron, gradually remove the lining plate in an orderly manner, and replace the rubber lining plate of the wet granulator. Precautions Wet ball mill is the most important equipment in the beneficiation equipment. At this time, the symmetrical fixed wedge on the horizontal center line cannot be disassembled. 4 After the lower lining plate is removed, use the hoist to slowly pull the ball mill cylinder | to rotate 180°, and remove the other half of the lining plate. The removal of the lining plate is a cycle from the completion to the circle, and the removal of the lining plate needs several cycles.
        

        
	
        
         

        
The rubber lining plate of the pelletizer should be fixed before the removal of the mill barrel. The method is to hang the two steel ropes suspended from the ball mill respectively on the overhand pull block and place them on both sides of the barrel to fix and tighten them to prevent sudden rotation of the heavy weight. 6 Clean the inner cavity of the mill, and check the damage of the mill cylinder and bearing end cover. Wet pelletizer rubber liner installation process Before installing the rubber liner of the pelletizer, not only to pay attention to the installation of the liner, but also to complete the installation in advance before the following to explain it carefully. Wet pelletizer rubber liner replacement preparation 1 Understand the model specifications of the ball mill in detail, implement the type, size, shape, quantity and other parameters required for the ball mill liner, and purchase and place the rubber liner before replacing the pelletizer. 2 Implement the type, size, shape and quantity of bolts, screws, seals and other parts needed for rubber lining plates of pelletizer, and purchase them in advance. 3 Check whether maintenance tools such as lifting steel rope and crowbar are in place, and strictly check the lifting equipment. Wet granulator rubber liner installation process 1 Clean the dirt inside the cylinder before installing the liner. When installing the liner for the ball mill, apply a layer of 12 cement mortar between the inner wall of the cylinder and the liner, and tighten the liner bolts while wet. The gap between the lining plates is also smoothed with sand and pulp. 2 The ball mill should check and trim the liner before installing the liner, and its back and sides should be smooth and flat, and the bolt holes should be thoroughly cleaned and the casting flash removed, so that the bolts can be smoothly penetrated. 3 The bolts fixing the lining plate should be carefully padded with sealing gaskets to prevent the leakage of pulp. 4 Directional liner should pay attention to the direction should not be reversed. The long mill is generally separated into two silo by the silo plate. The feed end is the first bin, and the first bin is the stepped liner. When installing, the thin end of the step liner should be consistent with the arrow direction of the turning direction when the mill is working. When the grate hole of the compartment plate is conical, the large end of the cone should be consistent with the discharge direction of the ball mill. Cylinder liner can not form annular clearance. 5 When installing the compartment plate, wear all the bolts and tighten the bolts gradually in three times. At the same time, it should be noted that the connecting bolt on the center disc in the cylinder body should be tightened first and then the bolt on the cylinder body should be tightened. After all the bolts are tightened, the nuts of the bolts on the center disc of the cylinder body are "spot-welded" with electric welding to prevent loosening. 6 The cement mortar can be put into the test only after it has reached the strength requirement. Bolts found loose during operation must be tightened in time. The above is the installation process of manganese steel liner, and a total of 18 pieces are installed. After the continuous reform of energy conservation in the industry, the rubber liner has made a major breakthrough, and the number has been reduced by half to 9 rubber liners. The installation process is similar but there is one more detail to note. Before, manganese steel lining plates were fixed directly by bolts, and the stability was poor. Now after changing to rubber liner, the liner is directly fixed with rubber strips, which greatly enhances the stability. The liner plate of the double-hole bolt is more able to withstand the impact of the steel ball in the ball mill after installation, which is more firm, and the bolt is not easy to break, avoiding the phenomenon of frequent breaking of the bolt, thus reducing the number of times of filling the liner plate that has been dropped. The main focus of the chute is the wear resistance of the wear-resistant plate, of which the performance of the wear-resistant plate of cast iron, rubber, polyethylene, ceramic and high chromium alloy composite material is better, and there is little difference between each other, but in actual use, through the comparison of various data, the wear degree of the high chromium alloy composite surfacing wear-resistant plate is lower under the same service life and degree. In terms of impact resistance, rubber, composite surfacing wear-resistant plate and ceramic lining plate are better, cast iron and polyethylene have low impact resistance and are not suitable for transporting ore and alloy raw materials. In terms of price, the price of wear-resistant ceramic liner is the highest, but the wear-resistant effect is good, and the service life is long, up to 10A or more. According to the service life, price and replacement cycle of the 1000m2 chute area, the ceramic liner costs 1.5 million yuan, the polyethylene costs 1.8 million yuan, the surfacing wear-resistant composite board costs 1.2 million yuan, and the rubber liner costs 1.4 million yuan. At this point, the cost of surfacing wear-resistant plate is lower. Combining a variety of factors, the choice of surfacing wear plate in mining is more suitable for enterprise production, this lining plate quality can reduce the wear degree of the chute, extend the service life of the chute, reduce the maintenance and repair probability of the chute, effectively improve the efficiency of mining, and increase economic benefits for enterprises. A wide range of processing materials, such as: quartz stone, iron ore, copper, gold, etc. Wet ball mill working time for a long time cylinder and liner will have a certain wear, will affect the efficiency of the ball mill. In order to improve work efficiency, it is necessary to replace the new rubber lining plate of the granulator. So what should we pay attention to when replacing the rubber liner of the wet granulator? How to disassemble, what is the specific installation process? How to remove rubber lining plate of wet granulator? The lining board of the wet ball mill is divided into rubber lining board and gold steel lining board. Because the size of the liner size to consider the handling, loading and unloading and in and out of the grinding door convenience and other factors. In recent years, the liner size of the ball mill has been unified. The service life of rubber liner is 2 to 4 times higher than that of alloy liner. Of course, different grinding methods and grinding conditions, the difference in life is very obvious in a section of the mill,
        
						
        
					
        
                
        
			
        
            
        
				
			
        
			
        

        
    
        
        
        
            
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