Liquid aluminum transport electromagnetic pump IDEA

              Electromagnetic pump principle             Electromagnetic pump is based on the principle of linear motor. Pump body work produced traveling wave magnetic field by the special coil structure in the internal, magnetic field interact with internal molten electromagnetic thrust, extract furnace high temperature molten liquid electromagnetic thrust and keep high speed into the circular inner cavity material well, and in the swirl well formed in high speed, whirlpool will broke the material, through a return tube into the bottom of the furnace. The phase of the power supply voltage and current, can change the size and direction of the electromagnetic thrust.                     Electromagnetic pump is a device which use magnetic field and current in the conductive fluid interaction, make the fluid by the electromagnetic force and pressure gradient, to push the fluid motion. Often used for pumping liquid metal in the practical, so is also called the liquid metal electromagnetic pump. Electromagnetic pump is used to transport liquid in the airtight pipeline system of metal or other conductible liquid. In this sense, the electromagnetic pump with rotating impeller drive device, the difference is the force generated in a different way.             Drivers can use the right hand rule, when current flows through a conductor, will produce an induced magnetic field with metal solution produce induced current, induced current and magnetic field produce electromagnetic force, The force is the motive force of the molten metal movement, this force is not generated by mechanical components, and the metal solution not contact is the most important feature of electromagnetic pump.             Electromagnetic pump no mechanical moving parts, simple structure, good sealing, reliable running and don't need a shaft seal, therefore in the chemical industry, printing industry, used for conveying some toxic heavy metals, such as mercury, lead, etc. Used in nuclear power and nuclear fusion device transmit the molten nonferrous metals (sodium or potassium, sodium, potassium alloys, lithium lead), more widely used in metallurgy transport molten nonferrous metal casting production. The flow rate can reach 13000 m/h, the Pressure can reach 1.5 MPa, temperature is 1200 °C.               The economic benefits of electromagnetic pump application             Rely on the very high speed and large flow capacity, electromagnetic pump system can increase the rate of most of the melting furnace. Can do that rely mainly on the following respects:             Increase the rate of cold scrap melting because of high heat of liquid aluminum waste flow vortex is able to take cold.            Through a very efficient heat sink and minimize the temperature of the molten pool increases the heat exchange ability of the molten pool.           Don'ot open the oven door can give into the alloy melt into the eddy current reduces the cycle time.          Don't need to open the oven door manually stirring can constantly stir less liquid aluminum melting cycle time.          Don't open oven door can achieve add alloy, stirring, extracting samples of aluminum liquid function can improve the melting speed by 10%, increase more than 20% of production.