Wet meal drying system based on mechanical steam recompression and drying technique

Abstract

The invention discloses a wet meal drying system based on mechanical steam recompression which comprises a diffuser, wherein a discharging port of the diffuser is communicated with a feeding port of a press filter; the discharging port of the press filter is communicated with a superheated steam rotary drying machine; a secondary steam outlet of the superheated steam rotary drying machine is communicated with an air suction port of a mechanical steam compressor; an air outlet of the mechanical steam compressor is communicated with a heating tube beam in the superheated steam rotary drying machine; a steam inlet is arranged in the superheated steam rotary drying machine; a condensate water outlet which is communicated with a first storage jar is arranged in the superheated steam rotary drying machine; the discharging port of the superheated steam rotary drying machine is communicated with a hot air fluid bed dryer; the first storage jar is communicated with a heating tube in the hot air fluid bed dryer; a liquid outlet of the hot air fluid bed dryer is communicated with a second storage jar; the liquid outlet of the second storage jar is communicated with a liquid inlet of the diffuser. The invention also discloses a technique utilizing the system. The wet meal drying system based on the mechanical steam recompression has the advantages that the drying energy consumption is low, the equipment is free from dead angle and the recycling of alcoholic solution does not require a large amount of cooling water for cooling.

Description

technical field [0001] The invention relates to a wet meal desolvation drying system and process, which belongs to the drying technology of protein powder, in particular to a wet meal drying system and drying process based on mechanical steam recompression. Background technique [0002] Soybean protein concentrate is a high-quality natural food additive. It uses low-temperature soybean meal as raw material. The main processes include extraction, precipitation, ultrafine grinding, and functional transformation. The extruded wet meal from the extractor generally contains 25% to 35% solvent and a certain amount of water, and the meal containing solvent and water is collectively called wet meal. The common method of removing solvent and water from wet meal is to use heat to vaporize the solvent and water in the wet meal to obtain heat energy, thereby separating from the meal. This method uses heat to remove moisture (solvent and water) from solid materials. The operation is cal...

AI Technical Summary

Problems solved by technology

And in the hot air drying part of the vertical dryer, the material is easy to stick to the bottom surface of the vertical shaft and the material tray, causing mildew, causing E. coli to exceed the standard, and the product quality is not up to standard

Images