Renovation of Dummy Bar Counter for Continuous Casting Machine

In the production and operation of the steel mill, the stable operation of the dummy rod contaminant plays a key role in improving the production efficiency of the continuous casting machine and reducing equipment failures. Recently, the steel mill successfully completed the continuous casting machine dummy rod contaminant transformation project, effectively solving a problem of easy damage, saving spare parts replacement costs and maintenance costs of about 25,000 yuan each year, and ensuring production stability and improving resource kinetic energy.

The dummy rod is a core component of the continuous casting machine, and its stability directly affects the cutting accuracy and production continuity of the casting. Recently, the dummy rod of the continuous casting machine in the steel mill is very easy to fail due to baking due to being in a high temperature environment for a long time. The blockage failure not only leads to equipment maintenance and increases maintenance costs, but also increases the labor intensity of employees, and requires manual dummy rod feeding and billet length calculation.

In order to overcome this technical difficulty, we deeply analyzed the root cause of the problem, and after repeated discussions and experiments, we determined the modification plan of adding a protective seal sleeve on the outside and introducing a cooling water circulation system. It is reported that the protective seal sleeve is made of high-temperature resistant and high-strength materials, which can effectively isolate high-temperature radiation and provide a relatively stable working environment; at the same time, the cooling water circulation system removes heat through the continuous flow of cooling water, accurately controls the temperature, and fundamentally avoids the problem of pollutant damage caused by high temperature.

After the transformation, the working environment temperature and the temperature of the equipment itself have been significantly reduced. First of all, this series of failures have been significantly controlled, the replacement frequency has been reduced, and the cost of spare parts replacement can be saved by about 14,000 yuan per year. In addition, the equipment failure rate has been significantly reduced, the productivity has been effectively guaranteed, the labor intensity of employees has been reduced, and the maintenance cost can be saved by about 11,000 yuan per year.