首页>
外国专利>
PROCESS AND DEVICE FOR TORREFACTION AND MILLING IN A FLUIDIZED LAYER OF A BIOMASS LOAD FOR A GASIFICATION OR A LATER COMBUSTION
PROCESS AND DEVICE FOR TORREFACTION AND MILLING IN A FLUIDIZED LAYER OF A BIOMASS LOAD FOR A GASIFICATION OR A LATER COMBUSTION
展开▼
机译:用于气化或以后燃烧的生物质流化层中的折射和铣削的过程和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A unit for roasting and milling large particles (2-5 cm) of biomass in a fluidised bed, has two vertical walls (P1, P2) and inclined wall(s) (P3) defining three zones: (1) a lower zone with means of fluidising particles 2-5 mm in size and with a mill at the bottom, (2) a zone with means of fluidising particles of 1-2 mm and (3) an upper zone with means of fluidising particles smaller than 1 mm, in which the particle feed pipe (11) reaches down to the level of zone 2 and (P3) is at an angle of 30-60[deg] to the vertical. Independent claims are also included for (1) A method for roasting and milling biomass particles as above in which (2) the rate of particle fluidisation in zone 1 is 1.3-2.5 times the minimum rate for particles with a diameter of 1-2 mm (3) the rate in zone 2 is 1.3-2.0 times the minimum rate for particles with a diameter of 1-2 mm (4) the rate in zone 3 is 1.3-1.5 times the minimum rate for particles with a diameter of less than 1 mm (5) the average residence time of the largest biomass particles in the unit is 10-40 (preferably 15-30) minutes and (6) the temperature inside the unit is 230-300 (preferably 250-280) [deg] C .
展开▼
机译:用于在流化床中烘烤和磨碎大颗粒(2-5厘米)生物质的装置,具有两个垂直壁(P1,P2)和倾斜壁(P3),它们定义了三个区域:(1)下部区域使尺寸为2-5 mm的颗粒流化并在底部装有研磨机的装置;(2)带有1-2 mm的流化颗粒的区域;以及(3)带有小于1 mm的流化颗粒的上部区域,其中颗粒进料管(11)下降到区域2的高度,而颗粒(P3)与竖直方向成30-60°角。还包括以下方面的独立权利要求:(1)一种如上所述的焙烧和研磨生物质颗粒的方法,其中(2)区域1中的颗粒流化速率是直径为1-2 mm的颗粒的最小速率的1.3-2.5倍(3)区域2的比率是直径为1-2毫米的颗粒的最小比率的1.3-2.0倍(4)区域3的比率是直径小于1-2毫米的颗粒的最小比率的1.3-1.5倍1毫米(5)单元中最大的生物质颗粒的平均停留时间为10-40(最好为15-30)分钟,(6)单元内部的温度为230-300(最好为250-280)[°] C 。
展开▼