中部出气的上吸式固定床气化炉及其自动控制的料斗供料系统设计  

Updraft Fixed- bed Biomass Gasifier with Gas Outlet in the Middle Position and its Automatic Hopper Feeding System

作　　者：杜海江[1] 徐冰嬿 李宗楠[2] 刘光华 董燕萍 

机构地区：[1]中科院广州电子技术有限公司,广州510070 [2]中国科学院广州能源研究所,广州510640 [3]东莞市百大新能源股份有限公司,广东东莞523808

出　　处：《应用能源技术》2015年第1期23-28,共6页Applied Energy Technology

基　　金：2009年广东省中科院战略合作项目(200-9B091300009);2011年广东省重大科技专项(2011A080803002);2012年广东省重大科技专项(2012A080103002)

摘　　要：改进的固定床上吸式生物质气化炉,以锥形下料裙将气化炉分成气化室与储料室两部分,出气口设在下料裙死角处。输出的产出气温度在300℃以上、灰分少、热值高,气化效率高,兼具上吸式与下吸式气化炉的优点,有效解决了常规上吸式气化炉产出气中焦油含量高、热值低问题。自动控制的料斗供料方式保证了气化炉运行的可靠性与安全性,扩展了生物质木料的适用范围。实现产出燃气在蒸汽锅炉中代替煤、木材、油燃烧,可有效解决中小企业的用能问题,达到节能减排的目的。An improved fixed -bed updraft biomass gasifier, is divided into two gasification chamber and storage chamber by a tapered feeding skirt. The gas outlet of parts, i. e. the gasifier is designed in the comer of the skirt. This gasifier possesses the advantages of both updraft gasifier and downdraft gasifier, with high gasification efficiency, the outlet gas has the characteristics of temperature higher than 300℃, low ash content and high calorific value. The proposed method solves the problem of high tar content and low calorific value of conventional updraft gasifier. The hopper feeding method expands the scope of biomass material, and the automatic control provides the reliability and safety of the system. Using the outlet gas of gasifier as fuel of boiler instead of coal, wood, or oil,will effectively solve the energy problem of small and medium - sized enterprise , and achieve the purpose of energy - saving and emission - reduction.

关 键 词：中部出气 固定床上吸式气化炉 料斗供料 

分 类 号：TK6[动力工程及工程热物理—生物能] TP273.2[自动化与计算机技术—检测技术与自动化装置]