Zinc oxide collecting device

Abstract

The invention relates to a zinc oxide collecting device, and belongs to the technical field of a facility for producing metallic oxides by a dry method. The zinc oxide collecting device comprises a machine frame, a collecting box, a feeding pipe, an air return box, an air extracting mechanism, a compressed air leading-in mechanism and a zinc material separation mechanism, wherein a collecting box separation cavity is arranged in the collecting box and consists of a recovery cabin and a collecting cabin; a collecting hopper is arranged on the outer wall of the collecting box; the bottom of the collecting box is provided with a discharging hopper; the discharging hopper is communicated with the recovery cabin and the collecting cabin; a discharging hopper discharging control valve is arranged in a position of a discharging opening of the discharging hopper; a feeding pipe discharging opening control valve is arranged on a feeding pipe discharging opening in a cooperated way; the air return box corresponds to the recovery cabin; the air extracting mechanism is connected with the back side of the air return box and is communicated with an air return box cavity; the compressed air leading-in mechanism is arranged at the front side of the air return box; the zinc material separation mechanism is positioned in the separation cavity of the collecting box and is fixed with a zinc material separation mechanism installing hole. Zinc oxide products in different grades can be obtained; the collecting efficiency is improved, the production speed of zinc oxide is guaranteed, and the energy-saving effect is achieved; and the efficiency is high, and the grading effect of zinc oxide products is good.

Description

technical field [0001] The invention belongs to the technical field of dry-process metal oxide production facilities, and in particular relates to a zinc oxide collecting device. Background technique [0002] Zinc oxide (ZnO) is an oxide of zinc, soluble in acid and strong alkali, but insoluble in water. As a commonly used chemical additive, zinc oxide is widely used in plastics, silicate products, synthetic rubber, lubricants, paints, ointments, adhesives, food, batteries, flame retardants, cosmetics, printing and dyeing, papermaking, enamel And cable cables, and so on. With the continuous acceleration of industrial processes, the demand for zinc oxide continues to increase, and its performance requirements are also increasingly stringent. [0003] There are two main methods of producing zinc oxide, dry method and wet method, but most of them adopt dry method. The dry method has direct method and indirect method. The direct method is also called the American production m...

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Problems solved by technology

[0007] Figure 4 It is a schematic diagram of a zinc oxide collection device in the prior art. The zinc oxide that is melted from zinc ingots is introduced into the collection bag 9 by the zinc oxide feed pipe 8. Although the structure is simple, due to the oxidation in the zinc oxide feed pipe 8 Zinc flows naturally by the air temperature difference between the hot air and the cold air, so not only the efficiency is low, but also the particle size classification (i.e. quality classification) of the zinc oxide entering the collection bag 9 cannot be carried out. The thickness of the zinc oxide product in the collection bag 9 tends towards the same

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