“热皮冷心”是高大平房仓散装储粮中普遍存在的现象,“热皮粮”主要存在于粮堆表层、底层以及靠近四周墙壁部位,在粮堆内部有一个常年温度在15℃左右的“冷核心”。粮堆中“冷核心粮”的存在,一方面因与“热皮粮”存在较大温差,影响储粮稳定性,另一方面由于“冷核心粮”温度低 “Hot skin cold heart” is a common phenomenon in tall bulk warehouse grain storage grain, “hot skin grain” mainly exists in the surface layer of the piles, the bottom and the surrounding walls around the place, in the interior of the grain piles have a perennial temperature of about 15 ℃ The “cold core.” The existence of “cold core grain” in the grain piles, on the one hand, has a large temperature difference with the “hot parchment” and affects the stability of grain storage. On the other hand, due to the low temperature of the “cold core grain”