成本控制是任何生产活动都要注意的, 褐煤烘干机对物料进行干燥处理,热量是***为关键的。热量达不到的话,物料干燥的时间长、效率低,耗费的燃料也更多。热量充足是干燥的保证。那么除了选择好的热源燃料外,通过一些措施来降低
烘干机热量的损失也非常有效。此处所指的“热损失”主要是燃料的机械和化学不完全燃烧热损失、灰渣带走的显热、外壁表面的散热损失等。 减少废气带走的热量及化学、机械不完全燃烧的热损失,选择合理的燃烧室,降低物料粒度等都可以不同程度的提高烘干机的热效率。同时,加强对工人的技术培训和生产管理,也能达到提高烘干机热效率的目的。 目前,燃烧室的形式主要有人工燃烧室、煤粉燃烧室、机械炉篦燃烧室、沸腾燃烧室。各种燃烧室都有其优缺点。但就其燃烧效率来看:人工燃烧室一般只有50%左右,近一半的煤未燃烧完全。而煤粉燃烧室和沸腾燃烧室有80%左右。只有机械炉篦式燃烧室燃烧效率******,可达90%以上。 被烘干物料的粒度愈小,物料与气流的接触面积就愈大,干燥时间就愈短,因此,适当降低物料粒度有利于提高烘干机热效率。
褐煤烘干机岁排放的废气温度,必须保证废气经过收尘器、排风机直到排出大气中,水汽不会冷凝出来。但废气温度也不宜过高,否则热耗会增加。出烘干机废气温度一般在100~150℃,顺流烘干机烘干物料出口温度略低于废气温度,约为80~120℃,废气排放温度越低,系统热效率越高。废气温度从150℃降到100℃可以使热效率提高5%~7%。 破碎机设备,
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Cost control is any production activity, must pay attention to lignite dryer to dry the material, the heat is the most critical. Heat can not reach, the material drying time is long, low efficiency, cost of fuel and more. Heat is the assurance of drying. So in addition to choose a good heat source of fuel, by some measures to reduce the heat loss of the dryer are also very effective. Here refers to the heat loss is mainly chemical and mechanical incomplete combustion heat loss of fuel, the sensible heat of the ash away, on the surface of the outer wall heat loss, etc. Reduce exhaust away heat and chemical, mechanical incomplete combustion heat loss, selecting rational combustion chamber, reduce material granularity can improve the thermal efficiency of the dryer. At the same time, strengthen the technical training of workers and production management, can also be the purpose of improving the thermal efficiency of the dryer. Currently, the main form of the combustion chamber of pulverized coal combustion chamber, combustion chamber, mechanical grate combustion chamber, boiling