Rotary drum filter for preparing coated vitamin C granules

Abstract

The invention provides a rotary drum filter for preparing coated vitamin C granules. The rotary drum filter comprises a shell, a filter vat and a collecting tank which are sequentially sheathed from outside to inside; a feeding pipe and a rotating shaft are respectively arranged at the two ends of the filter vat; the feeding pipe is rotationally connected with the side wall of the shell, and a part positioned outside the shell is connected with a transmission device; the rotating shaft is rotationally connected with the inner side wall of the shell; the two ends of the collecting tank are rotationally connected with the filter vat, and a discharging pipe is arranged at one end, close to the rotating shaft, of the collecting tank; an air intake tank is arranged on the upper wall of the shell, the opening end of the air intake tank is opposite to a position at a notch in the upper part of the collecting tank. The rotary drum filter for preparing the coated vitamin C granules, provided bythe invention, has the benefits that slurry is positioned inside the filter vat, a solid-phase matter in the slurry naturally settles under the action of gravity, the dependence on vacuum equipment in the outer filter surface rotary drum filter is eliminated, the production equipment input is reduced, the energy consumption in the filtration process is reduced, and no problem of solid phase precipitation in a slurry filtering tank of the outer filter surface rotary drum filter exists..

Description

technical field [0001] The invention belongs to the technical field of vitamin C preparation, in particular to a rotary drum suction filter for preparing coated vitamin C particles. Background technique [0002] Vitamin C is an important part of animal nutrition. It participates in the formation of collagen, prevents scurvy, and improves the immunity and disease resistance of animals. However, vitamin C itself is unstable and is very sensitive to oxygen, light, and metal ions such as copper and iron. Sensitive, easy to be oxidized and lose its unique effect. In production, vitamin C particles are usually coated with fat, ethyl cellulose, polyacrylic acid resin and other coating materials to separate vitamin C from the external environment and effectively solve the problem. Its characteristics of easy water solubility and easy oxidation reduce the difficulty of its storage and improve its utilization rate. [0003] The preparation of vitamin C mainly includes Reyes method, t...

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Problems solved by technology

[0003] The preparation of vitamin C mainly includes Reyes method, two-step fermentation method, etc. The production process involves filtration and suction filtration steps. Drum vacuum filter is widely used because of its compact structure, continuous operation, and convenient maintenance. However, Drum vacuum filters all have the unavoidable problem of solid phase precipitation in the filter slurry tank, resulting in waste of production materials and increased production costs

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