CN106147922A - 一种洁净煤添加剂 - Google Patents
一种洁净煤添加剂 Download PDFInfo
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Abstract
本发明提供一种洁净煤添加剂,由以下重量份数的原料制成:氧化钙60~75份、锌渣20~26份、铜渣2~5份、活化剂4~8份、稳定剂1~5份和硫铝酸钙1~3份。本发明洁净煤添加剂有效地降低了粉煤灰含碳量,而且还提高了以辐射传热为主的炉内热交换效率,锅炉蒸发量增加,另外,固硫矿相反应为放热反应,CaO与SO2反应过程放出大量热量,给锅炉补充了部分热量,强化煤炭燃烧,使锅炉煤耗平均降低5%以上,有效的降低了碳和CO排放量。
Description
技术领域
本发明属于煤炭领域,具体属于一种洁净煤添加剂。
背景技术
环境污染被日益重视的今天,能源中的化石染料-煤,其燃烧产生的污染首当其冲。但是,煤是最廉价且储量最大的一种能源;随着可利用的煤不断的产出,利用价值很低的劣质煤也伴同产生且侵占了大量的土地,形成了新的污染和土地的浪费。为了克服上述不足,现在的做法是根据这种煤种的燃烧特性、发热量、挥发性及其着火、硫分、结渣性、燃尽等燃烧指标,将不同煤种按一定配比,并加入成型剂、固硫剂,生产不同性能的、燃烧完全的、污染物排放较少的洁净煤添加剂。
但是,如何进一步改善煤的燃烧质量、提高工业锅炉的炉膛温度和热效率、减少废渣废气的排放量、提高劣质煤甚至煤矿的废弃煤种的利用率,仍然具有重大意义。
发明内容
为了克服上述缺陷,本发明的目的在于提供一种洁净煤添加剂。
为实现上述技术目的,本发明采用如下技术方案。
一种洁净煤添加剂,由以下重量份数的原料制成:纳米活性氢氧化钙60~75份、锌渣20~26份、铜渣2~5份、石膏4~8份、二氧化硅1~5份和硫铝酸钙1~3份。
洁净煤添加剂的生产方法及使用方法,包括以下步骤:
(1)洁净煤添加剂的配制:将以下重量份数的原料纳米活性氢氧化钙60~75份、锌渣20~26份、铜渣2~5份、石膏4~8份、二氧化硅1~5份和硫铝酸钙1~3份加入球磨机混合,球磨成的0.1~5mm的粉末,静置6~10h,即得洁净煤添加剂;
(2)将原煤破碎至粒径≤30mm;
(3)在步骤(2)原煤中加入步骤(1)洁净煤添加剂,混合均匀,即得产品;
进一步的,一种洁净煤添加剂,所述固硫剂占原煤的重量百分比为3~10%,所述的固硫剂由以下重量份数的原料制成:纳米活性氢氧化钙60~70份、锌渣20~25份、铜渣2~3份、石膏4~5份、二氧化硅1~3份和硫铝酸钙1~2份。
进一步的,一种洁净煤添加剂,所述的固硫剂由以下重量份数的原料制成:纳米活性氢氧化钙60~65份、锌渣20~22份、铜渣2~5份、石膏4~7份、二氧化硅1~5份和硫铝酸钙1~3份。
本发明的有益效果如下:
1.本发明充分利用了工业废渣,减少了原料中纳米活性氢氧化钙的用量,实现了变废为宝,本发明固硫剂固硫效果好,本发明固硫剂固硫效果好,固硫剂颗粒直接且迅速地与煤燃烧过程中产生的SO2发生反应,抑制其随烟气排出,脱硫产物形成稳定的矿物赋存于改性产品中,脱硫效果远远好于石灰石,固硫率≥97%,使硫排放≤30mg/m3,基本实现零排放。
2.本发明洁净煤添加剂有效地降低了粉煤灰含碳量,而且还提高了以辐射传热为主的炉内热交换效率,锅炉蒸发量增加,另外,固硫矿相反应为放热反应,CaO与SO2反应过程放出大量热量,给锅炉补充了部分热量,强化煤炭燃烧,使锅炉煤耗平均降低5%以上,有效的降低了碳和CO排放量。
具体实施方式
下面结合实施例对本发明做详细说明
实施例1
一种洁净煤添加剂,由原煤和固硫剂配制而成,所述固硫剂占原煤的重量百分比为2~10%,所述的固硫剂由以下重量份数的原料制成:纳米活性氢氧化钙60份、锌渣20份、铜渣2份、石膏4份、二氧化硅1份和硫铝酸钙1份。
洁净煤添加剂的生产方法及使用方法,包括以下步骤:
(1)洁净煤添加剂的配制:将以下重量份数的原料纳米活性氢氧化钙60份、锌渣20份、铜渣2份、石膏4份、二氧化硅1份和硫铝酸钙1份加入球磨机混合,球磨成的0.1~5mm的粉末,静置6~10h,即得洁净煤添加剂;
(2)将原煤破碎至粒径≤30mm;
(3)在步骤(2)原煤中加入步骤(1)洁净煤添加剂,混合均匀,即得产品。
Claims (3)
1.一种洁净煤添加剂,其由以下重量份数的原料制成:纳米活性氢氧化钙60~75份、锌渣20~26份、铜渣2~5份、石膏4~8份、二氧化硅1~5份和硫铝酸钙1~3份。
2.根据权利要求1所述的洁净煤添加剂,其特征在于,其由以下重量份数的原料制成:纳米活性氢氧化钙60~70份、锌渣20~25份、铜渣2~3份、石膏4~5份、二氧化硅1~3份和硫铝酸钙1~2份。
3.根据权利要求1所述的洁净煤添加剂,其特征在于,其由以下重量份数的原料制成:纳米活性氢氧化钙60~65份、锌渣20~22份、铜渣2~5份、石膏4~7份、二氧化硅1~5份和硫铝酸钙1~3份。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105176618A (zh) * | 2015-10-20 | 2015-12-23 | 张保森 | 一种洁净煤及其生产方法 |
CN105198250A (zh) * | 2015-10-20 | 2015-12-30 | 河南理工大学 | 一种固硫灰渣水泥及其制备方法 |
CN105199809A (zh) * | 2015-10-20 | 2015-12-30 | 张保森 | 一种燃煤用固硫剂及其制备方法 |
CN105276576A (zh) * | 2015-10-20 | 2016-01-27 | 张保森 | 一种燃煤脱硫工艺 |
CN105733724A (zh) * | 2016-01-12 | 2016-07-06 | 韩秀峰 | 一种具备脱硫效果的固硫、高效燃烧的洁净煤及制备方法 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105176618A (zh) * | 2015-10-20 | 2015-12-23 | 张保森 | 一种洁净煤及其生产方法 |
CN105198250A (zh) * | 2015-10-20 | 2015-12-30 | 河南理工大学 | 一种固硫灰渣水泥及其制备方法 |
CN105199809A (zh) * | 2015-10-20 | 2015-12-30 | 张保森 | 一种燃煤用固硫剂及其制备方法 |
CN105276576A (zh) * | 2015-10-20 | 2016-01-27 | 张保森 | 一种燃煤脱硫工艺 |
CN105733724A (zh) * | 2016-01-12 | 2016-07-06 | 韩秀峰 | 一种具备脱硫效果的固硫、高效燃烧的洁净煤及制备方法 |
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