Technique of processing cut stem by high pressure stem steaming

A technique of processing cut stem by high pressure stem steaming comprises the steps of screening stems, washing stems, expanding the tobacco stems, compressing the stems, cutting the stems, feedingthe cut stem, drying the cut stem, and enhancing aroma of the cut stem. Stem ends in the stems are removed through two-stage stem screening; the stem ends in the stems are effectively removed, stem purity is improved, removal rate of available stems is decreased, and utilization rate of tobacco stems and quality of cut stem are improved; according to stem expanding, the tobacco stems are steamed under the steam pressure of 1.4-1.8 mpa and are expanded under the pressure of 0.4-0.6 mpa, traditional multiple steps of cut stem are replaced by one step, moisture permeability of stems is increasedto 98% and above, and the requirement of the cut stem processing process for moisture permeability of stems is met; the traditional processing flow of cut stem is greatly simplified, the requirement of cut stem layout for spat