CN100351188C - 污泥干化与焚烧工艺及其***装置 - Google Patents
污泥干化与焚烧工艺及其***装置 Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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- Treatment Of Sludge (AREA)
Abstract
Description
处理方式 | 作用 | 处理后污泥的含固率 | 处理后污泥的主要成分 |
浓缩 | 使污泥初步脱水、缩小污泥体积,为后续处理创造条件 | 3~8% | 与原污泥同 |
消化 | 减少污泥量,防止污染环境和提高利用价值 | 3~8% | 与原污泥同 |
脱水 | 减小污泥体积 | 15~35% | 与原污泥同 |
干燥 | 减少污泥体积、稳定污泥性质、无害化 | 40~93% | 少量有机物和无机灰 |
焚烧 | 减少污泥体积、稳定污泥性质、无害化及热能回用有些污泥含有有毒物质或其他原因难以利用的也进行焚烧 | >99% | 无机灰 |
序号 | 内容 | 导热油 | 蒸汽(1.27MPa,192℃) |
1 | 流化床面积 | 7m2 | 10.6m2 |
2 | 干燥机设备价格 | 约增加30% | |
3 | 干燥***(包括冷却器、输送机械等辅助设备)的投资 | 约增加23% | |
4 | 热媒介质年运行费 | 导热油使用寿命5年,一次使用量约为2t,计1920元/年 | 汽水损失按3%计算,年运行费约21600元/年 |
5 | 电能消耗 | 约增加185kW | |
6 | 厂房面积 | 小 | 大 |
序号 | 项目 | 单位 | 数值定义 | 限值 |
1 | 烟尘 | mg/m3 | 测定均值 | 80 |
2 | 烟气黑度 | 林格曼黑度,级2) | 测定值 | 1 |
3 | 一氧化碳 | mg/m3 | 小时均值 | 150 |
4 | 氮氧化物 | mg/m3 | 小时均值 | 400 |
5 | 二氧化硫 | mg/m3 | 小时均值 | 260 |
6 | 氯化氢 | mg/m3 | 小时均值 | 75 |
7 | 汞 | mg/m3 | 测定均值 | 0.2 |
8 | 镉 | mg/m3 | 测定均值 | 0.1 |
9 | 铅 | mg/m3 | 测定均值 | 1.6 |
10 | 二恶英 | TEQ ng/m3 | 测定均值 | 1.0 |
项目 | 旋转式雾化器 | 压力喷嘴 | 二流体喷嘴 | 加压二流体喷嘴 |
雾化方式 | 旋转离心盘 | 压力 | 高压空气 | 压力+低压空气 |
平均液滴径 | 30~150μ | 70~300μ | 30~100μ | 30~70μ |
动力 | 大 | 最小 | 最大 | 小 |
保养 | 难 | 可 | 可 | 可 |
价格 | 最高 | 最便宜 | 高(需配备空压机) | 高 |
磨损对***的影响 | 不大 | 大 | 大 | 较大 |
浆料喷雾适应性 | 不易堵塞 | 易堵塞 | 易堵塞 | 较不易堵塞 |
主用途 | 浆料喷雾 | 水冷却用 | 水冷却用 | 加料喷雾及水冷却 |
序号 | 项目 | 单位 | 数值 |
1 | 型号 | DLM C4/8/15 | |
2 | 除尘效率 | % | 99.9 |
3 | 设计烟气量 | Nm3/h | 20000 |
4 | 烟气温度 | ℃ | 140 |
5 | 过滤面积 | m2 | 480 |
6 | 滤袋材料 | P84+PTFE涂层 | |
7 | 滤袋最高使用温度 | ℃ | 250 |
8 | 滤袋使用寿命 | 年 | 1.5 |
9 | 清灰方式 | 高压脉冲反吹 | |
10 | 脉冲阀 | 个 | 40 |
11 | 除尘器阻力 | Pa | <1500 |
物料名称 | 小时耗量 | 天消耗量 |
Ca(OH)2电(动力)(电伴热)自来水压缩空气(P=5~7bar) | 22.8kg210kW75kW1.86m3180m3 | 574.2kg5040kWh44.62m3间隙用 |
Claims (6)
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CN1800062A CN1800062A (zh) | 2006-07-12 |
CN100351188C true CN100351188C (zh) | 2007-11-28 |
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CN101708940B (zh) * | 2008-11-04 | 2011-10-05 | 北京博奇电力科技有限公司 | 利用气固余热的污泥干化焚烧处理*** |
CN101713543B (zh) * | 2009-02-24 | 2011-08-31 | 刘沪滨 | 一种零辅助燃料的污泥焚烧炉 |
CN101565263B (zh) * | 2009-05-21 | 2011-10-19 | 山东天力干燥股份有限公司 | 双级桨叶干燥机污泥过热蒸汽干化***及其干化工艺 |
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