The Development Of Cyclone Accelerator

The Pipe wearing is still a puzzle to the foundry sand delivering. Cyclone accelerator is put forward as a new dispenser by means of the exploratory analysis of central cyclone suction, based on the suction phenomenon of tornado.In this dissertation, it is considered that the mechanical equilibrium condition of centrifugal force, viscous drag and pressure gradient-force. The movement of cyclone gas in pipe, the feasibility of central cyclone suction, and the inlets critical velocities are analyzed. The test data such as static pressures and inlet velocity in various parameters are gathered by pitot measure principle. It is found that the size of throat pipe is an important factor that affects the central suction performance which helps to achieve the optimum material flow depended on the gradient distributions of static pressure and radial thrust in the water-carrying section. The best length is 600mm under this condition. It is observed that an increase of cyclone-throat inlet area ratio is favorable to the central suction system, and also influences on the allocation of inlet velocity, static pressure in pipe. In addition, within a reasonable scope of parameters, can increase the system pressure and it is out performed is more advantageous than enlarging the frictionless delivering.FloWizard is first used in the numerical simulation research of the three-dimensional rotational flow in pipe based on the Reynolds stress model. It is found that the results of numerical solution are in satisfactory agreements with experimental data, which validates this model to be reasonable. The model is developed to analyze the distribution of static pressure and velocity and also the turbulence kinetic energy and turbulence dissipation rate. It obtained the parameter optimization prediction model based on the BP artificial neural network.