Evaporating pan for vacuum smelting furnace

Abstract

The invention discloses an evaporating pan for a vacuum smelting furnace. At least one circle of groove is formed in the bottom surface of the evaporating pan; and the upper plane of the outer edge of a liquid accommodating tank of the evaporating pan is inclined towards the inner side. According to the evaporating pan, the splashing prevention effect can be enhanced, the pollution caused by volatile matters can be relieved, and the metal recycling rate can be increased.

Description

technical field [0001] The invention relates to a vacuum smelting device, in particular to an evaporation pan used in a vacuum smelting furnace. Background technique [0002] Vacuum smelting technology originated in the 1930s and was introduced into my country in the 1950s. Due to its low energy consumption, no pollution, short process, high recovery and high efficiency, it has played an important role in the development of my country's nonferrous metallurgical industry. An internal heating continuous vacuum smelting furnace is widely used in vacuum distillation smelting such as crude metal purification and alloy separation. In the middle of this kind of vacuum smelting furnace, a plurality of disk-shaped evaporating plates are stacked to form an evaporating plate group. The evaporating plate is provided with a liquid tank for holding the metal liquid. There is a gap to form a steam outlet channel. There is a cylindrical condensation cover around the evaporator group. The e...

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Problems solved by technology

However, since the technical features of the patent document are not clearly defined, and the drawings in the description do not conform to the mechanical drawing standards, those skilled in the art cannot implement the content disclosed in the patent document.

Now on the market there is a evaporator with a structure similar to the patent drawings (such as figure 1 ), that is, there is a circle of protruding edge 1 on the bottom of the evaporator, and a circle of concave steps 2 on the inner side of the outer edge of the evaporator liquid tank. The steam outlet channel is S-shaped, and a circle of protruding edge protruding downward from the bottom of the evaporator can block metal droplets from splashing out of the evaporator. This structure is better than purely narrowing the gap, and can reduce volatile pollution. The impact on the recovery rate is smaller than that of purely narrowing the gap. However, this kind of evaporator has a complicated structure, and it is difficult to process the protruding edge of the bottom surface and the inner concave step on the outer edge of the liquid storage tank, and the manufacturing cost is high. Improve income

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