Solidification device for preparing pure directional solidification metal structure

The utility model relates to a solidification device for preparing a pure directional solidification metal structure, which comprises a bearing rack, a smelting furnace, a crystallization furnace, a crystallization condensation mechanism, a flow injection pipe, a flow injection adjusting mechanism, a negative pressure pump, a booster pump and a driving circuit, the smelting furnace and the crystallization furnace are both embedded in the bearing rack, and the smelting furnace is communicated with the crystallization furnace through the flow injection pipe; the crystallization condensation mechanism is connected with the lower end face of the crystallization furnace, the lower half portion of the injection flow adjusting mechanism is embedded in the smelting furnace, the negative pressure pump and the booster pump are communicated with the smelting furnace and the crystallization furnace respectively, and the drive circuit is embedded in the outer side face of the bearing rack. On one hand, the production cont