CN1266031A - 一种适用于低挥发份煤煅烧的分解炉 - Google Patents
一种适用于低挥发份煤煅烧的分解炉 Download PDFInfo
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- CN1266031A CN1266031A CN 99102740 CN99102740A CN1266031A CN 1266031 A CN1266031 A CN 1266031A CN 99102740 CN99102740 CN 99102740 CN 99102740 A CN99102740 A CN 99102740A CN 1266031 A CN1266031 A CN 1266031A
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- furnace
- decomposing furnace
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/45—Burning; Melting in fluidised beds, e.g. spouted beds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
分解炉型式 | 基本指标参数 | 基本特征 | 优缺点 |
本发明分解炉 | 1.主炉断面风速:7~10m/s悬浮炉断面风速:4~7m/s2.物料停留时间10~21s3.工作温度:主炉:870~920℃预燃室:830~870℃4.物料分解率85~95% | 三次风以双侧或单侧进入流化床悬浮炉;燃料在纯空气中燃烧;主炉内依靠双喷腾将物料分散到整个炉膛内,形成喷腾区和环形区,加强气固混合换热和反应的进行。 | 1.物料、温度分布均匀。2.主炉结构简单,操作简便。3.预燃炉为离线布置4.预燃炉可根据需要来调整容积大小,设计弹性大5.燃料在纯空气中点燃,有利于燃料的着火燃烧 |
喷腾型 | 1.炉断面风速5.5~9.5m/s2.物料停留时间8~17s3.工作温度870~920℃4.物料分解率85~92% | 主要依靠喷腾将物料分散到整个炉膛内,形成喷腾区和环形区。离线式:燃料在纯空气中燃烧。在线式:燃料在窑气与三次风的混合气中燃烧。 | 1.物料分布、温度分布无本发明分解炉均匀。2.可离线或在线布置。3.部分炉型NOx浓度较低。4.对离线式分解炉常因强料脉冲或三次风不畅造成塌料堵塞。 |
管道型 | 1.炉断面风速8~18m/s2.物料停留时间8~20s(顶部采用特殊结构时为30s)3.工作温度880~920℃4.物料分解率85~90% | 该炉型为管道流,为了延长物料在管道内的停留时间,管道需作得很长。 | 1.温度分布较均匀。2.物料分布均匀性介于流态化炉和其它几种炉型之间。3.在线或局部离线布置。4.不易结皮。5.烧低挥发份煤时,管道较长 |
流态化型 | 1.炉断面风速稀相区3.5~5.5m/s浓相区7.5~12m/s2.物料停留时间45~140s3.工作温度820~865℃4.炉内料分解率60~75% | 物料以流化风进行流态化,三次风以近似对撞进入,炉内存在稀相区和浓相区;该炉与垂直烟道一起实现入窑物料分解率的“二次到位”,达90~95%。 | 1.物料分布均匀。2.温度分布均匀,炉内温差常在±10℃内,不会因局部过热而导致结皮。3.炉子运行比较稳定。4.有利于劣质燃料的燃烧。5.通常离线布置,无高温区,低温操作,但不利于过细煤粉在床上的停留 |
组合型 | 1.炉断面变化较大,风速变化较大5~20m/s2.物料停留时间7~18s3.工作温度860~910℃4.物料分解率85~92% | 一般分SB、SC和MC三个室,在SB、SC室燃料在纯空气中预燃烧,出SC室后进入MC室进一步燃烧、混合和分解。 | 1.两室温度分布稍有差别。2.MC室物料分布和喷腾炉相当,SC室物料分布不均,无本发明分解炉均匀。3.局部离线布置,为“离线预燃”,“在线分解”。4.有时因局部过热而结皮。5.属部分高温操作分解炉。 |
Claims (4)
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Application Number | Priority Date | Filing Date | Title |
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CN 99102740 CN1117261C (zh) | 1999-03-04 | 1999-03-04 | 一种适用于低挥发份煤煅烧的分解炉 |
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CN 99102740 CN1117261C (zh) | 1999-03-04 | 1999-03-04 | 一种适用于低挥发份煤煅烧的分解炉 |
Publications (2)
Publication Number | Publication Date |
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CN1266031A true CN1266031A (zh) | 2000-09-13 |
CN1117261C CN1117261C (zh) | 2003-08-06 |
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CN 99102740 Expired - Fee Related CN1117261C (zh) | 1999-03-04 | 1999-03-04 | 一种适用于低挥发份煤煅烧的分解炉 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104903268A (zh) * | 2012-12-26 | 2015-09-09 | 三菱综合材料株式会社 | 流化预烧炉 |
CN106029600A (zh) * | 2014-02-28 | 2016-10-12 | 三菱综合材料株式会社 | 流动煅烧炉 |
-
1999
- 1999-03-04 CN CN 99102740 patent/CN1117261C/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104903268A (zh) * | 2012-12-26 | 2015-09-09 | 三菱综合材料株式会社 | 流化预烧炉 |
CN106029600A (zh) * | 2014-02-28 | 2016-10-12 | 三菱综合材料株式会社 | 流动煅烧炉 |
CN106029600B (zh) * | 2014-02-28 | 2018-09-18 | 三菱综合材料株式会社 | 流动煅烧炉 |
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CN1117261C (zh) | 2003-08-06 |
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Owner name: TIANJIN DESIGN INST. OF CEMENT INDUSTRY CO., LTD. Free format text: FORMER OWNER: TIANJIN DESIGN INST. OF CEMENT INDUSTRY, STATE BUREAU OF BUILDING MATERIAL INDUS Effective date: 20070309 |
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Effective date of registration: 20070309 Address after: Tianjin District of Beichen city in the 300400 major North Road No. 1 Patentee after: Tianjin Cement Industry Design & Research Institute Co., Ltd. Address before: 300400 Tianjin Beichen Yinhe North Road, No. 1 Patentee before: Tianjing Cement Industry Design Institute, State Board of Architectural material |
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Owner name: SINOMA TECHNOLOGY + EQUIPMENT GROUP CO., LTD. Free format text: FORMER OWNER: TIANJIN CEMENT INDUSTRY DESIGN + RESEARCH INSTITUTE CO., LTD. Effective date: 20110916 |
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