【 Lubrication case 】 A cement plant lubrication system blindly use energy-saving additives

【 Lubrication case 】 A cement plant lubrication system blindly use energy-saving additives - 2019 03 - 3 a, case background a cement plant since 2012 has been widely research testing equipment of oil monitoring work. Detected by monitoring purpose mainly through the oil equipment may appear early wear, so as to take timely measures to maintenance. The company's two coal mill in October 2016, a kind of energy-saving additives, the energy-saving additives claimed that bearing temperature can reduce energy consumption and equipment. Second, the monitoring situation since 2012, widely research test of the cement plant two coal grinding machine has been oil monitoring, use a type gear oil, monitoring during the period of equipment running well. In October 2016 monitoring found that the two main reduction of coal grinding machine, grinding head, grinding, lubricating oil viscosity were significantly lower, the highest fell by 68. 6%. Then get in touch with field engineers, get feedback: two coal mill lubrication system energy-saving additives added, lead to the oil viscosity changes. Consider adding the JieNengJi gear oil viscosity decreased more significantly, may be the cause of the oil film strength is insufficient, cause the abnormal wear and tear of equipment, advice to track monthly sampling site monitoring, to ensure the safe operation of equipment. In the subsequent monitoring found that two main reduction of coal mill and 73 b of the grinding head wear is in the decrease of viscosity are rising at the same time, along with the falling of viscosity, has led to the decrease of the oil film strength, affect the bearing capacity of oil and antiwear performance, finally show the content of Fe element. Several other lubrication points, in the case of viscosity decreased, while the content of Fe element inside short time did not rise, but the use of low viscosity there is still a risk. Three, case revelation of lubricating oil in production tend to add a few even more than ten kinds of additives, these additives in oil each other constraints, such as: extreme pressure antiwear additives can reduce friction and wear of prevent but affects antioxidant and its role in inhibitor. A qualified additives in lubricating oil can be a very good balance, achieve perfect once blindly with other additives, the balance will be broken, affect the overall performance of the oil. So, adding other additives in need without authorization to oil, must be careful, if really necessary, should do well the relevant assessment test in advance, can reduce risk. （ Extensive research test shandong inspection center)