Magnesium alloy furnace structure system:1) The concrete made of special composite steel plate does not pollute the magnesium liquid, has anti-corrosion structure inside, and has long service life.2) Using a radiant tube or other heating method, the heater can be quickly replaced3) Stainless steel casing and panel, corrosion resistant, high temperature resistant4) Imported thermocouple, accurate temperature control and high service life5) Quantitative pump instantaneous flow design, maintenance time of more than 30 days (patent: ZL201220249304.8)6) The transmission tube is made of special corrosion-resistant materials, which can be quickly changed, and the maintenance time is more than 30 days (patent: ZL201120347014.2)7) Preheater adopts clamping mechanism to make liquid level control stable and accurate feeding (patent: ZL201420137471.2)8) Preheating machine has low energy consumption and good preheating effect