Simulation And Optimization On Drilling System And The Whole Blast Furnace Taphole Machine

As the basic industry of the national economy, steel industry is an important manifestation of the comprehensive national strength and the economic level. In recent years, the development of Steel-Making calls higher request on the blast furnace ironmaking technologies and equipments. Whether or not the equipments work continuously, efficiently and safely impacts the production efficiency and the steel and iron profession development. As one of the most important mechanical equipment, the taphole drilling machine have many problems, such as the short life, low efficiency and high production costs. These problems have become an important factor in the development of steel industry. So these problems need to be solved well. As a sub-project in the Jinan Iron and Steel hydraulic taphole drilling machine project, this project mainly proposes improvement and optimization to raise efficiency and decrease the cost of production.The connection type in the drilling system of tap hole drills used in blast furnace is improved and optimized. The integration connection is used to replace the separate sets connection. Use ADAMS software to actualize dynamics emulate analysis of the driving energy transmission process and the data of produce locale is collected. The result shows that using the integration connection reduces the loss in the driving energy transmission process and the work efficiency is increased.ABAQUS Finite Element Analysis Software is used to simulate the thermal condition to obtain the temperature distribution field of the drill. It is known that the high temperature affects the drill a lot. To get around the cooling problem of drills, a spray cooling system is developed successfully. According to the actual situation at the scene, the spray cooling system could cool the drill system effectively and raise the working efficiency. The use of vulnerable parts and production cost is reduced obviously. At the same time, the spray cooling system reduces the dust emissions and improves the working condition.Theoretical analysis and dynamics emulate analysis of taphole drilling machine drill force using ADAMS software is taken. The finite element model is established in ABAQUS software. The dynamics analysis result and temperature field is put on the model as load and the finite element analysis is taken. The stress and deformation condition is obtained. According to the analysis result, the main reason to the drill failure is the drop of drill lip. As to this reason, a new type of drill is designed to reduced the production cost.The parts of taphole drilling machine are surveyed and drawn and the complete appliance model is established. The kinematical and dynamical analysis of the working process is taken using ADAMS software. The stress state of the joints is obtained. It applies the finite element analysis to make strength check, the result satisfies the strength requirement.