The working environment of the continuous casting machine equipment is extremely harsh, especially the secondary cooling chamber with high temperature, large water vapor and iron oxide. The sector section is in low speed and heavy load working condition. It is very important to maintain good lubrication of the bearings in the sector section of the secondary cooling chamber. Difficult things.
The secondary cooling chamber of a continuous casting machine in a steelmaking plant
There is approximately a lubrication point for oil and gas lubrication. In the early stage of production, due to design flaws, local roller lubrication was not good, which resulted in scratches on the slab and affected the surface quality of the slab. The following is an introduction to the specific improvements
and improvements to the pipelines of the oil and gas lubrication system. Transform to achieve diversion and segmented control.
The sealing of the oil pipe and air pipe joints from the mixer to the lubrication main pipe is changed to a cone seal. Because the sealing effect of the flat ring is not good, and the material has poor high temperature resistance, it leaks more, resulting in higher fuel consumption.
Change the gas source medium from compressed air to nitrogen. Because the compressed air pressure is low and unstable, the system is unclean and contaminates the mixer. The gas source was changed to nitrogen and a filtering device was added to the system, which not only improved the cleanliness level, but also stabilized the pressure and greatly improved it, reaching ~, which meets the usage requirements of oil and gas lubrication systems.
According to the actual situation on site, the oil and gas lubrication pressure holding time and interval time are optimized, and the most economical oil consumption is used to achieve the best lubrication effect of the bearing.
, Improve the quality of offline equipment maintenance, and concentrate on dealing with oil and gas lubrication leaks in the secondary cold room. An additional oil and gas lubrication and suppression system is built offline to suppress the offline maintenance sectors and vibrating table spare parts to ensure that the quality of the spare parts is qualified. Use all opportunities when the main machine stops pouring to deal with leaks in the secondary cold room and minimize controllable oil leakage. .
Through the transformation of
the oil and gas lubrication system, the number of failures and leakage of the oil and gas lubrication system has been greatly reduced, and the service life of related equipment has been increased to varying degrees. Now the oil and gas lubrication consumption has dropped from ~~ per day in the past to less than a day. The number of sectors that have gone offline due to poor lubrication has also been significantly reduced, and the service life of the sectors has also been increased to 3 months. Moreover, the oil and gas lubrication system operates smoothly, the failure rate is extremely low, and the quality of the slab is greatly improved.
News