Design Of Magnetic Fluid Sealing Device And Computer Simulation In Sintering Machine

With the rapid development of sintering industry，sintering equipment has becomemore and more perfect day by day. However, the problem of sintering industry sealing hasnot been effectively solved. Due to the air leakage problem, the effective air volume ofunit area is reduced which makes productivity decline and results in the sinter quality andquantity descending. In addition, the turning back ratio of mine increases and it leads tothe deterioration of the environment and arising of the cost. Consequently, sinteringsealing research has important practical significance.Magnetic fluid as a kind of new functional material has got widely used because ofits unique nature in the fields of application. This paper, based on magnetic fluid dynamics,combined with the air leakage of sintering machine, proposes a new type of magnetic fluidsealing device on sintering machine.First of all, according to the sealing mechanism of MHD as well as Bernoulliequation, the sealing theory--pressure difference equation in static sealing by magneticfluid is deduced for the actual model of sintering machine. And then, with the workingprinciple of sintering machine, we have designed the new type sealing device of entitymodel when the trolleys are working on the track and gave the parameters. Moreover，byusing ANSYS finite element simulation software, the two-dimensional numericalsimulation of thermal magnetic coupled inside of sealing device is set up. We obtain fluxdensity distribution and temperature distribution within the magnetic sealing gap byanalyzing the influence of a single field and get magnetic flux density distribution atdifferent temperatures. We discuss the effects of magnetic properties at differenttemperatures, and calculate the corresponding pressure difference in order to getparameters range when the sealing performance is best. At last, through the thermalstructure coupled analysis, we study the deformation of sealing groove as well as Vonmises distribution in various loads to ensure the normal use of the device. This topicprovides a reference that successfully applied to actual production in future.