The Diffusion Simulation Of Unorganized Emitting Dust Concentration In Steel-Making Workship

At present,steel demand and steel industry increases more strong with the global economy picking up. But steel industry belongs to the special industries, the non-organization smoke in a relatively large steelmaking workshop will be difficult to fully diffusion, give workers health cause certain threat. This article mainly studies the problem of air circulation and air quality in workshop.to providing technical according for the choice of the design of workshop and the management.this article using the computational fluid dynamics method simulate different workshop scheme under in a series of wind speed,getting the velocity field airflow and the concentration distribution of unorganized emitting dust.First,this article simulate the velocity field airflow and the concentration distribution of non-organization smoke of the first of workshop design scheme (only one gate in air inlet) in 1.2 m/s,having a conclusion of poor ventilation effect of this scheme and smoke concentration belowing standard;it will optimize the first of scheme, to constructing the second of design scheme, namely adding one more gate in the air outlet,then using FLUENT numerical simulation simulating the velocity field airflow and the concentration distribution of non-organization smoke of the second of workshop design scheme in 1.2 m/s, This scheme having good ventilation effect, making smoke spreading fully and smoke concentration uping to standard; Meanwhile simulating the velocity field airflow and the concentration distribution of non-organization smoke of the first scheme with the wind speed increasing.When the speed of winds greater than 4m/s,it can ensure the smooth circulation of air inside the workshop and the smoke concentration can up to the health standard of workshop shut up the gate of air outlet. From this series of simulation can the air quality the steel workshop, reflecte intuitively the working environment of steelmaking workshop,then discovering problems in advance, saving a lot of manpower and material resources,for providing more effective and feasible control technical measures to optimize the design of steelmaking workshop and selecte the way of management.In short,this article study air circulation and the spreading of pollutant concentration in different wind speeds of workshop, for providing certain ideas and exploration to optimize the design of steelmaking workshop and selecte the way of management.