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Method and system for simulating motion trail of solid inclusions in molten steel
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A technology of motion trajectory and simulation method, applied in the field of metallurgy
Active Publication Date: 2020-11-17
UNIV OF SCI & TECH BEIJING
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Physical simulation uses the flow similarity criterion. Generally, liquid steel at room temperature is used to simulate molten steel, and paraffin or other materials are used to simulate inclusions. This method can visually see the movement trajectory of inclusions, but this method is not suitable for simulating particle size. The movement of inclusions at the micron level, and a considerable part of the inclusions in molten steel have particle sizes at the micron level
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Embodiment 1
[0085] refer to figure 1 , in the present embodiment, propose a kind of simulation system that is used for solid inclusion moving track in molten steel, described system comprises:
[0086] The inclusion initial state data storage module is used to save the initial state data of the inclusions;
[0087] The flow field data calling module is used to extract the initial state data of the inclusions and calculate the flow field data of the inclusions;
[0088] inclusion force calculation module, used to extract the flow field data and calculate the inclusion force data;
[0089] The inclusion movement trajectory calculation module is used to extract the force data of the inclusions and calculate the spatial coordinate data of the inclusions;
[0090] The calculation result storage module is used to save the finally calculated spatial coordinates of inclusions; and
[0091] The control module is used to set the calculation step size, extract the spatial coordinates of the inclu...
Embodiment 2
[0101] refer to figure 2 , in this embodiment, a method for simulating the movement trajectory of solid inclusions in molten steel is provided, the simulation method can calculate the movement trajectory of inclusions in molten steel by using the above-mentioned system, and the The trajectory includes the three-dimensional coordinates of the inclusion space at each moment, and the three-dimensional velocity of the inclusion in the flow field at each moment.
[0102] In this embodiment, the simulation method includes the following steps:
[0103] S1, saving the initial state data of the inclusions in the initial state data storage module of the inclusions, and setting the number of calculation steps;
[0104] S2, the control module monitors the number of steps, and according to the set number of calculation steps, circulates through the flow field data call module, the inclusion force calculation module and the inclusion movement track calculation module to calculate, and cal...
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Abstract
The invention belongs to the field of metallurgical industry, and particularly relates to a method and a system for simulating a motion trail of solid inclusions in molten steel. The system comprisesan inclusion initial state data storage module, a flow field data calling module, an inclusion stress calculation module, an inclusion motion trail calculation module, a calculation result storage module and a control module. The method comprises the following steps of calculating by initial state data of inclusions, the circular flow field data calling module, the inclusion stress calculation module and the inclusion motion trail calculation module in a circulating manner and simulating the motion trail of the solid inclusion in molten steel.
Description
technical field [0001] The invention belongs to the field of metallurgical industry, and in particular relates to a simulation method and system for the movement track of solid inclusions in molten steel. Background technique [0002] Inclusions in molten steel can be divided into foreign inclusions and endogenous inclusions according to their sources. Foreign inclusions are caused by refractory materials or slag remaining in the steel during the smelting process. Endogenous inclusions are caused by deoxidation of molten steel. A large number of studies have shown that inclusions in steel have great harm to the quality of steel. On the other hand, during the pouring process of molten steel, inclusions will deposit on the refractory wall and cause nodules, which will affect the smooth production. The removal of inclusions generally utilizes the good fluidity of molten steel and the density difference between inclusions and molten steel to remove inclusions. Therefore, exp...
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