Grain drying system based on gravity dust removal

• Main Authors: LI XIAOYING, XU MIANJUN, XU SHENGHUI, SHI LIN
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2019
• Subjects: BLASTING; DRYING; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM; HEATING; LIGHTING; MECHANICAL ENGINEERING; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; SEPARATING SOLIDS FROM SOLIDS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING; WEAPONS

The invention discloses a grain drying system based on gravity dust removal. Grain is lifted to an upper screw conveyer by a hoister; the grain is conveyed to the center of a grain storage tempering section by the upper screw conveyer, and then is dispersed in the grain storage tempering section by a grain dispersing device in a multiple-point manner; the grain flows into grain paths of a drying section by the own gravity; hot air enters the drying section from an angular box cavity and penetrates the grain paths through air exhaust sieve pores to take away moisture in the grain; after the grain paths are heated, a grain stirring wheel is used for guiding the grain and controlling the flow rate of the grain so as to guide the grain into a lower screw conveyor; the lower screw conveyor conveys the grain to the hoister in parallel; the hoister vertically conveys the grain to the upper screw conveyor, and thus, the effect of circular drying is achieved; meanwhile, the gravity impurity removal is used for solving