ANALYSIS OF COMPOSITION AND FUSING BEHAVOR FOR ASH RESULTED FROM GRATE TYPE MSW INCINARATOR

WANG Gui-ying; YU Hai-miao; CHEN De-zhenThermal Energy and Environmental Engineering Research Institute

doi:10.19666/j.rlfd.2009.01.009

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ANALYSIS OF COMPOSITION AND FUSING BEHAVOR FOR ASH RESULTED FROM GRATE TYPE MSW INCINARATOR

更新时间：2025-09-28

- ANALYSIS OF COMPOSITION AND FUSING BEHAVOR FOR ASH RESULTED FROM GRATE TYPE MSW INCINARATOR
- Thermal Power Generation Vol. 38, Issue 1, Pages: 35-38(2009)
- 作者机构：
  
  同济大学热能与环境工程研究所
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2009.01.009
  CLC： X705
- Published：2009
- 稿件说明：
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WANG Gui-ying, YU Hai-miao, CHEN De-zhenThermal Energy and Environmental Engineering Research Institute. ANALYSIS OF COMPOSITION AND FUSING BEHAVOR FOR ASH RESULTED FROM GRATE TYPE MSW INCINARATOR[J]. Thermal power generation, 2009, 38(1): 35-38.
DOI：

WANG Gui-ying, YU Hai-miao, CHEN De-zhenThermal Energy and Environmental Engineering Research Institute. ANALYSIS OF COMPOSITION AND FUSING BEHAVOR FOR ASH RESULTED FROM GRATE TYPE MSW INCINARATOR[J]. Thermal power generation, 2009, 38(1): 35-38. DOI： 10.19666/j.rlfd.2009.01.009.

摘要

在工况和炉内气氛一定的情况下

灰渣中各种化学成分及其物相对灰渣的熔融特性起着决定性作用。从灰熔点、灰成分、XRD物相分析3个方面对焚烧炉灰渣熔融特性进行了研究。结果表明

在远低于灰熔点的条件下

灰渣内部已经有一部分矿物发生了烧结

这些局部的熔融是引起矿物质颗粒相互粘连的原因之一;CaO、Al2O3/MgO/ZnO、SiO2等反应生成的钙化合物形成的低熔点共熔物相的存在是灰渣形成的主要原因。

Abstract

Under certain operating condition and atmosphere inside the furnace

various chemical constituents in ash and their phase play a decisive role on the fusing behavior of ash.The fusing behavior of ash has been studied from analysis in three aspects

i.e.ash fusing point

ash composition

and the XRD phase.Results show that:under condition of far lower than the ash fusing point

a part of minerals inside ash has been sintered

these local fusion is one of the causes which leads mineral particles to adhere to each other

the existence of low fusing point eutectic phase resulting from reaction of calcium compounds due to reaction of CaO

Al2O3/MgO/ZnO and SiO2 etc.is the main cause of slagging.

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