CN106630250A - 一种铬废水处理成套装置 - Google Patents
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Abstract
本发明提出的一种铬废水处理成套装置,包括反应罐、压滤机、机械过滤器和活性炭吸附器,反应罐上设有水位计、浮球开关、PH传感器、药液进口和搅拌设备,机械过滤器设有高压进气管和出气管,机械过滤器内分为上层的粗过滤层和下层的精过滤层,本发明结构简单,设计合理,具有降低设备运行成本,提高铬废水处理效率和效果,有效控制进量,液位高度可视的特点,同时,废液过滤速率更为快速,安全性高,而且过滤后的水,再经过一次活性炭吸附后,十分洁净,可直接供其他工序使用,或者用于清洗,避免了对环境的污染,也提高了水源利用率,避免浪费。
Description
技术领域
本发明涉及铬废水处理,特别是一种铬废水处理成套装置。
背景技术
目前,含铬废水主要来源于金属电镀行业,钢铁制造工业等金属加工企业国内冶金和化学工业中每年大约排出20一30万吨铬渣。铬渣中的有害成分主要是可溶性铬酸钠、酸溶性铬酸钙等六价铬离子。由于这些六价铬以及它的流失扩散而构成对生态环境的污染危害。其次是铬渣的强碱性危害。当铬渣在露天堆存时,经长期雨水冲淋后大量的六价铬离子随雨水溶渗、流失、渗入地表,从而污染地下水,也污染了江河、湖泊,进而危害农田、水产和人体健康。
一般的铬废水处理设备需对铬废水进行酸化、破铬、调减和分离等步骤,酸化作为首要步骤,直接影响后续反应的完整程度,进而影响铬废水处理的效果,现下使用的酸化设备,不能有效自动控制进液量,而且酸液的注入也不能达到随PH变化,自动注入的程度,对铬废水处理有着直接影响,而且在压滤分离后,一般的企业直接将废液排出或粗滤后排出,不仅对环境造成了污染,同时也造成了水源浪费。
发明内容
针对上述问题,本发明提出了一种铬废水处理成套装置。
为解决以上技术问题,本发明提供的技术方案是:
一种铬废水处理成套装置,其特征在于,包括反应罐、压滤机、机械过滤器和活性炭吸附器,所述反应罐数量为3个,反应罐分为酸化罐、破铬罐和调减罐,所述酸化罐、破铬罐、调减罐、压滤机、机械过滤器和活性炭吸附器通过管道依次相连;
所述反应罐上设有水位计、浮球开关、PH传感器、药液进口和搅拌设备,所述浮球开关设置于反应罐内,所述药液进口处设有注入管,所述注入管的下端位于反应罐内,其上端伸出反应罐外,并与药液存储罐联通,注入管上设有第一电磁阀,所述PH传感器与第一电磁阀相连,所述搅拌设备包括电机、转动主轴和搅拌叶,所述电机固定设置于反应罐顶部,其转动端设置朝下设置,并贯穿反应罐顶部,伸入反应罐内,所述转动主轴与电机的转动端固定连接,转动主轴上套有主轴导向套,所述主轴导向套呈圆台形,主轴导向套内设有密封圈和轴承,所述轴承的数量至少为2个,并与转动主轴过盈配合,所述搅拌叶的数量至少为2个,搅拌叶展开呈直角梯形,并呈弧形弯折,相邻2个搅拌叶之间连接有连接板,所述连接板呈扇形;
所述机械过滤器包括罐体,所述罐体上设有高压进气管和出气管,罐体内分为上层的粗过滤层和下层的精过滤层,所述粗过滤层和精过滤层之间通过隔板分隔,粗过滤层内设有呈中空圆柱形的石英砂粗滤网,所述精过滤层内设有呈中空圆柱形的石英砂精滤网,石英砂粗滤网和石英砂精滤网的内部联通,所述高压进气管和出气管均位于罐体上部,并与粗过滤层联通,高压进气管上设有高压气泵和压力计,所述出气管上设有第二电磁阀,所述机械过滤器的入水口处设有分水挡板和强化连接板,所述分水挡板呈斜向下设置,其与罐体的内壁所呈角度为α,所述α为30~45°,分水挡板上设有分液通道,所述分液通道的数量为2个,且对称设置,分液通道的截面呈圆弧形,所述强化连接板与分水挡板、罐体的内壁固定连接;
进一步的,所述酸化罐、破铬罐、调减罐、压滤机、机械过滤器和活性炭吸附器之间的管道上均设有阀门和水泵;
进一步的,所述压力计与第二电磁阀相连。
进一步的,所述酸化罐上设有废水进口,所述废水进口上连接有废水管道,所述废水管道上依次设有初级过滤器、精滤器和水泵。
本发明的有益效果为:
本发明提出的一种铬废水处理成套装置,包括反应罐、压滤机、机械过滤器和活性炭吸附器,反应罐上设有水位计、浮球开关、PH传感器、药液进口和搅拌设备,机械过滤器设有高压进气管和出气管,机械过滤器内分为上层的粗过滤层和下层的精过滤层,本发明结构简单,设计合理,反应罐搅拌效果好,酸化、破铬、调减过程快速,且均匀程度高,降低设备运行成本的同时,提高铬废水处理效率和效果,且第一电磁阀受浮球开关控制,有效控制进量,液位高度可视。
同时,机械过滤器采用高压气体促进废液过滤,过滤速率更为快速,同时进水管处设置分水挡板,进液进行分液并阻挡,降低废液对粗过滤层的直接冲刷,出气管的开闭由压力机控制,有效避免过滤器内部压力过大,导致安全问题,而且过滤后的水,再经过一次活性炭吸附后,十分洁净,可直接供其他工序使用,或者用于清洗,避免了对环境的污染,也提高了水源利用率,避免浪费。
附图说明
图1本发明示意图。
图2反应罐示意图。
图3反应罐截面图。
图4搅拌叶示意图。
图5机械过滤器截面图。
具体实施方式
如图所示的一种铬废水处理成套装置,其特征在于,包括反应罐1、压滤机2、机械过滤器3和活性炭吸附器4,所述反应罐1数量为3个,反应罐1分为酸化罐5、破铬罐6和调减罐7,所述酸化罐5、破铬罐6、调减罐7、压滤机2、机械过滤器3和活性炭吸附器4通过管道依次相连;
所述反应罐1上设有水位计8、浮球开关9、PH传感器10、药液进口11和搅拌设备,所述浮球开关9设置于反应罐1内,所述药液进口11处设有注入管12,所述注入管12的下端位于反应罐1内,其上端伸出反应罐1外,并与药液存储罐13联通,注入管12上设有第一电磁阀14,所述PH传感器10与第一电磁阀14相连,所述搅拌设备包括电机15、转动主轴16和搅拌叶17,所述电机15固定设置于反应罐1顶部,其转动端设置朝下设置,并贯穿反应罐1顶部,伸入反应罐1内,所述转动主轴16与电机15的转动端固定连接,转动主轴16上套有主轴导向套18,所述主轴导向套18呈圆台形,主轴导向套18内设有密封圈19和轴承20,所述轴承20的数量至少为2个,并与转动主轴16过盈配合,所述搅拌叶17的数量至少为2个,搅拌叶17展开呈直角梯形,并呈弧形弯折,相邻2个搅拌叶17之间连接有连接板21,所述连接板21呈扇形;
所述机械过滤器3包括罐体22,所述罐体22上设有高压进气管23和出气管24,罐体22内分为上层的粗过滤层25和下层的精过滤层26,所述粗过滤层25和精过滤层26之间通过隔板分隔27,粗过滤层25内设有呈中空圆柱形的石英砂粗滤网28,所述精过滤层26内设有呈中空圆柱形的石英砂精滤网29,石英砂粗滤网28和石英砂精滤网29的内部联通,所述高压进气管23和出气管24均位于罐体22上部,并与粗过滤层25联通,高压进气管23上设有高压气泵30和压力计31,所述出气管24上设有第二电磁阀32,所述机械过滤器3的入水口处设有分水挡板33和强化连接板34,所述分水挡板33呈斜向下设置,其与罐体22的内壁所呈角度为α,所述α为30~45°,分水挡板33上设有分液通道35,所述分液通道35的数量为2个,且对称设置,分液通道35的截面呈圆弧形,所述强化连接板34与分水挡板33、罐体22的内壁固定连接;
进一步的,所述酸化罐5、破铬罐6、调减罐7、压滤机2、机械过滤器3和活性炭吸附器4之间的管道上均设有阀门和水泵40;
进一步的,所述压力计31与第二电磁阀32相连。
进一步的,所述酸化罐5上设有废水进口36,所述废水进口36上连接有废水管道37,所述废水管道37上依次设有初级过滤器38、精滤器39和水泵40。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围内。因此,本发明的保护范围应该以权利要求书的保护范围为准。
Claims (4)
1.一种铬废水处理成套装置,其特征在于,包括反应罐、压滤机、机械过滤器和活性炭吸附器,所述反应罐数量为3个,反应罐分为酸化罐、破铬罐和调减罐,所述酸化罐、破铬罐、调减罐、压滤机、机械过滤器和活性炭吸附器通过管道依次相连;
所述反应罐上设有水位计、浮球开关、PH传感器、药液进口和搅拌设备,所述浮球开关设置于反应罐内,所述药液进口处设有注入管,所述注入管的下端位于反应罐内,其上端伸出反应罐外,并与药液存储罐联通,注入管上设有第一电磁阀,所述PH传感器与第一电磁阀相连,所述搅拌设备包括电机、转动主轴和搅拌叶,所述电机固定设置于反应罐顶部,其转动端设置朝下设置,并贯穿反应罐顶部,伸入反应罐内,所述转动主轴与电机的转动端固定连接,转动主轴上套有主轴导向套,所述主轴导向套呈圆台形,主轴导向套内设有密封圈和轴承,所述轴承的数量至少为2个,并与转动主轴过盈配合,所述搅拌叶的数量至少为2个,搅拌叶展开呈直角梯形,并呈弧形弯折,相邻2个搅拌叶之间连接有连接板,所述连接板呈扇形;
所述机械过滤器包括罐体,所述罐体上设有高压进气管和出气管,罐体内分为上层的粗过滤层和下层的精过滤层,所述粗过滤层和精过滤层之间通过隔板分隔,粗过滤层内设有呈中空圆柱形的石英砂粗滤网,所述精过滤层内设有呈中空圆柱形的石英砂精滤网,石英砂粗滤网和石英砂精滤网的内部联通,所述高压进气管和出气管均位于罐体上部,并与粗过滤层联通,高压进气管上设有高压气泵和压力计,所述出气管上设有第二电磁阀,所述机械过滤器的入水口处设有分水挡板和强化连接板,所述分水挡板呈斜向下设置,其与罐体的内壁所呈角度为α,所述α为30~45°,分水挡板上设有分液通道,所述分液通道的数量为2个,且对称设置,分液通道的截面呈圆弧形,所述强化连接板与分水挡板、罐体的内壁固定连接。
2.如权利要求1所述的一种铬废水处理成套装置,其特征在于,所述酸化罐、破铬罐、调减罐、压滤机、机械过滤器和活性炭吸附器之间的管道上均设有阀门和水泵。
3.如权利要求1所述的一种铬废水处理成套装置,其特征在于,所述压力计与第二电磁阀相连。
4.如权利要求1所述的一种铬废水处理成套装置,其特征在于,所述酸化罐上设有废水进口,所述废水进口上连接有废水管道,所述废水管道上依次设有初级过滤器、精滤器和水泵。
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