CN108636008A - 一种煤矸石页岩烧结砖尾气净化方法 - Google Patents
一种煤矸石页岩烧结砖尾气净化方法 Download PDFInfo
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Abstract
本发明公开了一种煤矸石页岩烧结砖尾气净化方法,本发明将洗尘废水依次经过一级沉淀池、过滤器、二级沉淀池处理后再泵入清洗水池供除尘器循环使用,极大的节约了水资源。清洗池内的水PH值调制到5‑6的范围内,以增加氢离子浓度,抑制了除尘过程中酸性氧化物溶于水雾除尘器的清洗水中,以此让酸性氧化物尽量的留在了一级处理气中以便后续处理。本发明使用纳米孔隙材料作为金属催化器的载体将三级处理气中的二氧化硫、一氧化碳和一氧化氮等进行氧化还原反应生成三氧化硫、二氧化碳和氮气,然后再利用碱性溶液和活性炭吸收。纳米孔隙材料作为催化剂载体可以增加反应的接触面积,而且可通过直径达到纳米级,利于过滤和催化,使得尾气净化更加彻底。
Description
技术领域
本发明涉及尾气处理技术领域,特别涉及一种煤矸石页岩烧结砖尾气净化方法。
背景技术
为了实现资源的再循环利用,同时也是为了成本考虑,在进行页岩砖烧制时有时会加入一定量的煤矸石,煤矸石不仅可以作为原材料的一部分,在烧制的过程中还能放出一定的热量加快烧制过程,但是因此砖窑排出的尾气中不仅含有大量的尘土,而且还会含有相当数量的一氧化碳、一氧化氮、二氧化硫等次氧化物,直接排放到空气中显然会造成环境污染,因此排放之前需要处理。但是,现有技术中,除尘过程一般是水雾除尘法除去尾气中的尘土,这个过程需要源源不断的水源,造成大量的水资源浪费,同时部分氧化物会溶于水生成弱酸,排出后会对环境造成危害,也会影响后续的处理过程。次氧化物催化装置载体一般采用多孔陶瓷或者三氧化二铝,但是这两种载体的孔隙度都不是很高,因此催化接触面积较小,反应速率低,对于尾气的净化不彻底。
发明内容
本发明要解决的技术问题是提供一种节约水资源、尾气净化更加彻底的煤矸石页岩烧结砖尾气净化方法。
本发明的技术方案为,一种煤矸石页岩烧结砖尾气净化方法,包括以下处理工艺:
(1)煤矸石页岩烧结砖尾气水洗除尘,得到不含尘的一级处理气和洗尘废水;
(2)洗尘废水经过初步静置沉淀后进行过滤,接着再进行二次静置沉淀后泵入清洗水池供水雾除尘器循环使用;
(3)一级处理气送入冷凝器加压至1.5-2个标准大气压下冷凝至25-30°凝出水汽得到二级处理气;
(4)二级处理气干燥处理得到三级处理气;
(5)三级处理气加热后导入纳米孔隙材料中利用金属催化剂进行催化得到四级处理气;
(6)四级处理气通入10%—20%体积比的碱性溶液吸收处理得到五级处理气;
(7)五级处理气经活性炭吸收塔吸收残余的有害物质后排放;
其中:清洗池内的水PH值控制在5-6的范围内,以增加氢离子浓度,达到抑制步骤1除尘过程中酸性氧化物溶于水雾除尘器的清洗水中的目的,以利于后续的步骤处理。
进一步的,纳米孔隙材料采用气凝胶、冻凝胶或者干凝胶。
进一步的,金属催化剂为锰、铂、铱或钯。
进一步的,冻凝胶为非金属氧化物冻凝胶或者炭冻凝胶。
进一步的,清洗池中的清洗水通过通入二氧化碳的方式来调节PH值。
本发明的有益之处在于:
本发明将洗尘废水依次经过一级沉淀池、过滤器、二级沉淀池处理后再泵入清洗水池供除尘器循环使用,极大的节约了水资源。清洗池内的水PH值调制到5-6的范围内,以增加氢离子浓度,抑制了除尘过程中酸性氧化物溶于水雾除尘器的清洗水中,以此让酸性氧化物尽量的留在了一级处理气中以便后续处理,使得处理更加的完全。
本发明使用纳米孔隙材料作为金属催化器的载体将三级处理气中的二氧化硫、一氧化碳和一氧化氮等有害氧化物与氧气混合反应,其中二氧化硫、一氧化碳被氧化成三氧化硫和二氧化碳,而一氧化氮被还原成氮气,然后再利用碱性溶液和活性炭吸收。纳米孔隙材料作为催化剂载体可以增加反应的接触面积,而且可通过直径达到纳米级,利于过滤和催化,使得尾气净化更加彻底。
附图说明
图1为本发明工艺流程结构框图。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步说明。在此需要说明的是,对于这些实施方式的说明用于帮助理解本发明,但并不构成对本发明的限定。此外,下面所描述的本发明各个实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互组合。
如图1所示:
实施例1:
一种煤矸石页岩烧结砖尾气净化方法,包括以下处理工艺和步骤:
(1)将煤矸石页岩烧结砖尾气导入水雾除尘器洗去其中的烟尘和灰尘,得到不含尘的一级处理气和洗尘废水,水雾除尘器采用寻常的水雾除尘器便可,这里主要的作用是先去除尾气中含有的大量灰尘,以便后续对尾气进行处理;
(2)将步骤1中的洗尘废水用抽吸泵泵入一级沉淀池进行静置沉淀,吸尘废水中吸附了大量的尘土和烟尘,先经过一级沉淀池将大部分的尘土和烟尘沉淀后,得到一级处理水,将一级处理水泵入过滤器进行过滤得到二级处理水,这里主要是过滤掉残余的尘土颗粒和泥浆,进一步的净化,接着将二级处理水泵入二级沉淀池静置沉淀得到三级处理水,这一步主要是去除最后的悬浮物和浮尘,到这一步三级处理水已经肉眼上看不出里面有浮尘了,最后将沉淀后的三级处理水泵入清洗水池供水雾除尘器循环使用,如此便可以节约水之源,实现循环除尘的目的。而一级沉淀池和二级沉淀池只需要过一段时间清理一次便可;
(3)将步骤1得到的一级处理气送入冷凝器加压至1.5-2个标准大气压下冷凝至25-30°,将一级处理气中的水汽冷凝出来得到较为干燥的二级处理气,处理过程采用1.5-2个标准大气压是因为水汽在高压低温下更容易液化,因为尾气中肯定带有水汽,而且温度较高,所以在步骤1的过程中部分吸尘水也会蒸发,为了后续的催化步骤正常进行,得先去除一级处理气中的水汽;
(4)将步骤3得到的二级处理气导入气体干燥装置进一步吸附其中残余的水汽得到三级处理气,此处只是为了进一步干燥,不再赘述;
(5)将步骤4中得到的三级处理气加热后导入催化装置内的纳米孔隙材料中利用金属催化剂锰进行催化得到四级处理气,纳米孔隙材料可以采用气凝胶、冻凝胶或者干凝胶,目的是将三级处理气中的二氧化硫、一氧化碳和一氧化氮等有害氧化物与氧气混合进行氧化还原反应,二氧化硫、一氧化碳被氧化成三氧化硫和二氧化碳,而一氧化氮被还原成氮气,其中二氧化碳和氮气已经无害,三氧化硫后续处理。寻常的催化装置载体一般采用多孔陶瓷或者三氧化二铝,但是这两种载体的孔隙度都不是很高,因此催化接触面积较小,而且孔隙直径处于微米级,较大的尘粒还是能通过孔隙,而本发明采用纳米孔隙材料作为催化剂载体可以增加反应的接触面积,而且可通过直径达到纳米级,利于过滤和催化;
(6)将步骤5中得到的四级处理气通入有机溶剂吸收塔利用10%—20%体积比的碱性溶液吸收尾气中的酸性氧化物后得到五级处理气,这里的碱性溶液可以用生石灰调配;
(7)将步骤6中得到的五级处理气经活性炭吸收塔吸收残余的有害物质后排放,这一步是处理最后残余的有害物质;
其中:清洗池内的水PH值调制到5-6的范围内,以增加氢离子浓度,此处可以通过通入二氧化碳的方式来调节PH值,以达到抑制步骤1除尘过程中酸性氧化物溶于水雾除尘器的清洗水中的目的,以利于后续的步骤处理。
实施例2:
步骤3中的冷凝器加压至1.5个标准大气压;
步骤5中纳米孔隙材料采用非金属氧化物冻凝胶,金属催化剂采用铂;
步骤6中的碱性溶液体积比为10%;
其余步骤与实施例1相同。
实施例3:
步骤3中的冷凝器加压至1.75个标准大气压;
步骤5中纳米孔隙材料采用炭冻凝胶,金属催化剂采用铱;
步骤6中的碱性溶液体积比为15%;
其余步骤与实施例1相同。
实施例4:
步骤3中的冷凝器加压至2个标准大气压;
步骤5中纳米孔隙材料采用炭冻凝胶,金属催化剂采用钯;
步骤6中的碱性溶液体积比为20%;
其余步骤与实施例1相同。
以上结合附图对本发明的实施方式作了详细说明,但本发明不限于所描述的实施方式。对于本领域的技术人员而言,在不脱离本发明原理和精神的情况下,对这些实施方式进行多种变化、修改、替换和变型,仍落入本发明的保护范围内。
Claims (5)
1.一种煤矸石页岩烧结砖尾气净化方法,其特征在于,包括以下处理工艺:
(1)煤矸石页岩烧结砖尾气水洗除尘,得到不含尘的一级处理气和洗尘废水;
(2)洗尘废水经过初步静置沉淀后进行过滤,接着再进行二次静置沉淀后泵入清洗水池供水洗除尘循环使用;
(3)一级处理气送入冷凝器加压至1.5-2个标准大气压下冷凝至25-30°凝出水汽得到二级处理气;
(4)二级处理气干燥处理得到三级处理气;
(5)三级处理气加热后导入纳米孔隙材料中利用金属催化剂进行催化得到四级处理气;
(6)四级处理气通入10%—20%体积比的碱性溶液吸收处理得到五级处理气;
(7)五级处理气经活性炭吸收残余有害物质后排放;
其中:控制所述清洗池内的水pH值为5-6。
2.根据权利要求1所述的煤矸石页岩烧结砖尾气净化方法,其特征在于:所述纳米孔隙材料采用气凝胶、冻凝胶或者干凝胶。
3.根据权利要求1所述的煤矸石页岩烧结砖尾气净化方法,其特征在于:所述金属催化剂为锰、铂、铱或钯。
4.根据权利要求2所述的煤矸石页岩烧结砖尾气净化方法,其特征在于:所述冻凝胶为非金属氧化物冻凝胶或者炭冻凝胶。
5.根据权利要求1-4任一项所述的煤矸石页岩烧结砖尾气净化方法,其特征在于:所述清洗池中的清洗水通过通入二氧化碳的方式来调节PH值。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104353340A (zh) * | 2014-10-25 | 2015-02-18 | 陈列鑫 | 一种污泥焚烧后的烟气净化和回用方法及其设备 |
CN204485563U (zh) * | 2014-12-26 | 2015-07-22 | 咸阳非金属矿研究设计院有限公司 | 一种湿法水雾除尘器 |
CN106621641A (zh) * | 2016-12-19 | 2017-05-10 | 李光武 | 一种尾气净化材料、其制备方法及尾气净化装置 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104353340A (zh) * | 2014-10-25 | 2015-02-18 | 陈列鑫 | 一种污泥焚烧后的烟气净化和回用方法及其设备 |
CN204485563U (zh) * | 2014-12-26 | 2015-07-22 | 咸阳非金属矿研究设计院有限公司 | 一种湿法水雾除尘器 |
CN106621641A (zh) * | 2016-12-19 | 2017-05-10 | 李光武 | 一种尾气净化材料、其制备方法及尾气净化装置 |
Non-Patent Citations (2)
Title |
---|
徐宏建: "《超超临界火电机组培训系列教材 燃料与环保分册》", 31 January 2013, 中国电力出版社 * |
王永刚等: "《煤化工工艺学》", 30 September 2014, 中国矿业大学出版社 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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