SU378468A1 - VACUUM APPARATUS FOR CONTINUOUS METAL REFINING - Google Patents

Description

one

The invention relates to the non-ferrous metallurgy industry and is intended for use in the processes of continuous refining of metals.

A vacuum apparatus for continuous refining of metals is known, including evaporative plates, a heating element, screens and devices for feeding and discharging a product.

Known apparatus does not provide effective cleaning of metals from impurities and has low productivity.

The purpose of the proposed apparatus is to accelerate the process of cleaning metals and increase the degree of purification from impurities.

This is achieved by the fact that the holes for the overflow of metal in the evaporation plates are alternately along their outer and inner edges, and the inner screen is provided with conical shelves for returning condensate to the evaporation plates.

FIG. 1 shows a general view of the apparatus; in fig. 2 - device tareley and internal screen.

The apparatus includes a housing 1, evaporative plates 2 and 5 with holes 4, a heating element 5, an internal perforated screen 6 with conical shelves 7, screens 5, a condenser 9, a boiler 10, a supply metal conduit 11, a receiving tank 12, discharge

2

the metal pipes 13 and 14, the condensate receiver 15, residue collection 16, condensate collection 17 and caissons 18. The vacuum apparatus works as follows

in a way.

The refined metal from the boiler 10 through the supply metal pipe 11 is fed into the receiving tank 12, from which it enters the evaporating plates 2 and 5. Flowing through the numerous holes 4 in the plates 2 and 3, the metal is intensely evaporated and condenses on the walls of the screens 8 and a condenser 9, from which it flows into a condensate receiver 15, and further along an outlet metal conduit 13 into a condensate collector 17, from which it is poured into a bitch. Condensate fraction enriched in less volatile impurities from the inner perforated screen 6 along conical shelves 7 continuously

returns to evaporative plates 2 and 3 multiple redistillation. The residue of distillation, enriched with impurities, flows through the outlet metal pipe M to the residue collection 16, from which the most advanced processing comes.

The presence in the 2 to 3 evaporator plates, numerous openings 4 greatly increases the evaporation surface of the metal during its transfer from the plate to the plate, which

improves the performance of the device, and

Multiple distillation of condensate, carried out using cone-shaped shelves 7, increases the degree of purification of the metal from impurities.

Subject invention

A vacuum apparatus for continuous refining of metals, including evaporative plates, a heating element, screens and devices for supplying and discharging a product, characterized in that, in order to increase the degree of metal purification from impurities and increase productivity, openings for the overflow of metal in the evaporation plates are alternately along their outer and inner edges, and the inner screen is equipped with cone-shaped shelves for returning condensate to evaporation plates.

needles