Influencing Factors of Service Life of Rotary Kiln

2023-06-08

How to prolong the life of Rotary kiln? With the development of heavy industry, the development and application of Rotary kiln in all walks of life are more and more. Many enterprises are concerned about the quality of Rotary kiln, how to buy long-life Rotary kiln equipment or how to extend the life of Rotary kiln equipment, etc., and then I will give you a brief introduction!

Of course, most customers are concerned about the service life of Rotary kiln. One of the main factors affecting the life of the Rotary kiln is the refractories used in the Rotary kiln, and the construction quality of Rotary kiln refractories is extremely important. Yongxin Rotary kiln engineers will analyze the key points of Rotary kiln lining for you.

The Rotary kiln refractory uses three kinds of amorphous refractory materials. The amount of water added to each kind of castable has requirements. Too much or too little will affect the pouring quality of the Rotary kiln, whether the mixing is uniform, and whether the time from mixing to pouring is beyond the limit will affect the lining of the Rotary kiln. The refractory materials from different places of origin are different in texture, resulting in a large difference in the service life of the lining, and even some Rotary kiln need to be overhauled once a year.

The service life of Rotary kiln lining will be shortened if the refractory materials of Rotary kiln are damp and expired. The welding strength and density of claw nails of Rotary kiln castables can not be ignored. Before lining pouring, claw nails should be welded in the Rotary kiln barrel. The role of claw nails is to make the barrel and lining firmly connected to prevent the lining from falling off. Claw nails shall be staggered with a distance of about 300 mm. If the density is too thin, the connection strength between the cylinder and the lining in the Rotary kiln will be weakened, and the welding strength of the claw nails will be insufficient. The connection degree between the cylinder and the lining will also be weakened, increasing the possibility of lining falling off, and shortening the service life of the lining in the Rotary kiln.

The strength and material of Rotary kiln claw nails also affect the lining. The claw nails should be made of materials with good heat resistance, low thermal expansion and high strength. The vibrating time during pouring is also very important. If the vibrating time is short and the pouring material is not fully compacted, the lining structure of Rotary kiln is relatively loose, then the life of the lining will be relatively short.