Vacuum wet meal desolventizing system

Abstract

The invention provides a vacuum wet meal desolventizing system. By utilizing a steam jet pressurizer, a drying layer of an evapo-separated machine is designed by utilizing a steam jet pressurizer, and factors such as the material layer height, drying temperature, vacuum degree and drying time in the vacuum wet meal desolventizing and drying process are further optimized, so that the residual content of bean pulp is about 78ppm at the best condition; the steam jet pressurizer performs vacuumization on the drying layer of the evapo-separated machine, a pumped mixed gas is pressurized into direct steam to be pumped into a desolventizing layer for desolventizing the wet meal, thus the residual content of the bean pulp can be effectively reduced, the denaturation of protein in the bean pulp is weakened so that the produced bean pulp is golden yellow, the steam consumption is reduced, condensation load of the whole wet meal desolventizing system is lowered, and the continuity of wet meal desolventizing production and the quality of finished bean pulp are ensured. Thus, with the adoption of the vacuum wet meal desolventizing system, the quality of the finished bean pulp is effectively improved, and the economic benefits of an enterprise are also improved.

Description

technical field [0001] The invention relates to a vacuum wet meal desolventization system. Background technique [0002] Solvent residue in soybean meal is an important indicator of solvent consumption and soybean meal amount in leaching oil factory. The desolventization effect of wet meal directly affects solvent consumption and solvent residue in finished soybean meal. When the residual solvent exceeds the standard, solvent consumption increases, feed value decreases and even causes Animals die. About 25%~35% solvent remains in the wet meal produced in the oil extraction workshop. This part of the solvent generally exists in the form of mechanical combination, chemical combination, and physical-chemical combination. The amount of solvent combined by chemical and physical-chemical methods Smaller and more difficult to remove, it is the focus of wet meal desolventization. Although the performance of the distillation equipment has been gradually improved, the more advanced ...

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the unreasonable use of steam in the wet meal desolventization process and the improper treatment of the desolventized soybean meal, which cause the direct steam consumption of the whole wet meal desolventization system to be too high, the condensation system is seriously loaded, and the residual solvent of the finished meal is relatively high. A Vacuum Wet Meal Desolventization System Proposed