CN202671336U - 车载式橇装油气田钻井、压裂废水自动处理装置 - Google Patents
车载式橇装油气田钻井、压裂废水自动处理装置 Download PDFInfo
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Abstract
本实用新型公开了一种车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于它包括预处理单元(1)、固液分离单元Ⅰ(2)、高级催化氧化单元(3)、Fe/C微电解单元(4)、固液分离单元Ⅱ(5)、深度处理单元(6)、污泥脱水单元(7),预处理单元(1)、固液分离单元Ⅰ(2)、高级催化氧化单元(3)、Fe/C微电解单元(4)、固液分离单元Ⅱ(5)、深度处理单元(6)依次通过管道相互连接,污泥脱水单元(7)通过管路分别与固液分离单元Ⅰ(2)和固液分离单元Ⅱ(5)连接,自动控制单元(8)通过电缆与各单元连接;该装置适用水质范围广,自动化程度高,装置集成橇装化,美观紧凑,运行稳定性高,处理费用低。
Description
技术领域
本实用新型涉及废水处理技术领域,具体地讲是一种车载式橇装油气田钻井、压裂废水自动处理装置,适用于一次性排量不大,作业流动性强的特殊行业废水。
背景技术
钻井废水和酸化压裂作业废水是石油天然气企业主要污染源。据统计,每个钻井队每天排放废水约30m3,每口压裂井产生废水100~200m3,每口酸化井排放废水100~200m3 。这些废水若直接外排,势必会给周边生态环境造成极大危害。
目前,油气田钻井过程使用的泥浆主要有:钙盐处理泥浆、聚合物泥浆和磺化泥浆三大体系;钻井废水是钻井泥浆的高倍稀释物,既含有细小粘土悬浮颗粒、重金属离子、油、酚类和硫化物,又含有可溶性有机处理剂。钻井废水是这些有机物作为护胶剂通过官能团和粘土颗粒形成的一种多分散的带负电荷的胶体溶液,具有高度不稳定性、多变性、复杂性和分散性等特点。
压裂是油气井增产和水井增注重要措施之一,压裂液分为水基、油基和多相压裂液三大类,水基压裂液最常用。水基压裂液一般是由稠化剂、交联剂、缓冲剂、粘土稳定剂、杀菌剂和助排剂等组成。压裂返排的破胶液粘度大、COD和悬浮物含量高,C0D深度去除难度较大。
目前,对钻井及压裂废水的常规处理方式是建立污水处理站,将分散的污水运至污水处理站与其他污水混合进行集中处理,处理方法以混凝沉淀结合生物法为主,这样就造成距离远、综合成本高,且由于水质复杂,变化大,生物处理***适应性与稳定性都存在很大问题。
总之,现用钻井、压裂废水处理技术存在如下不足:1、处理剂效能不高;2、处理方法单一,污染物深度处理能力有限;3、连续式处理装置针对性不强,运行稳定性差,处理费用高。
发明内容
本实用新型的目的是克服上述已有技术的不足,而提供一种车载式橇装油气田钻井、压裂废水自动处理装置,主要解决现有对钻井、压裂废水处理技术存在处理剂效能不高、处理方法单一、污染物深度处理能力有限、连续式处理装置针对性不强、运行稳定性差及处理费用高等问题。
本实用新型的技术方案是:车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于它包括预处理单元、固液分离单元Ⅰ、高级催化氧化单元、Fe/C微电解单元、固液分离单元Ⅱ、深度处理单元、污泥脱水单元,预处理单元、固液分离单元Ⅰ、高级催化氧化单元、Fe/C微电解单元、固液分离单元Ⅱ、深度处理单元依次通过管道相互连接,污泥脱水单元通过管路分别与固液分离单元Ⅰ和固液分离单元Ⅱ连接,自动控制单元通过电缆与各单元连接。
进一步的,所述的预处理单元由第一加酸调pH值混合槽、第一絮凝剂混凝槽和助凝剂搅拌槽连接组成。
进一步的,所述的固液分离单元Ⅰ由第一斜板沉淀槽、中间水槽、第一过滤器和过滤器进水泵通过管路连接组成。
进一步的,所述的高级催化氧化单元由一级催化氧化槽、二级催化氧化槽和三级催化氧化槽连接组成。
进一步的,所述的Fe/C微电解单元由Fe/C微电解槽体和移送泵通过管路连接组成,Fe/C微电解槽体内有Fe/C填料。
进一步的,所述的固液分离单元Ⅱ由第二加碱调pH值混合槽、第二絮凝剂混凝槽、第二斜板沉淀槽、第一污泥输送泵和沉淀槽出水移送泵通过管路连接组成。
进一步的,所述的深度处理单元由第二过滤器和高效吸附器通过管路连接组成。
进一步的,所述的污泥脱水单元由压滤机、第二污泥输送泵和滤液受槽通过管路连接组成,压滤机通过管路分别与斜板沉淀槽和斜板沉淀槽连接。
进一步的,所述的自动控制单元由配电装置、自控装置、监测仪表组成。
本实用新型所述的车载式橇装油气田钻井、压裂废水自动处理装置与已有技术相比具有如下积极效果:1、适用水质范围广,通过控制不同的工艺条件及药剂种类可以处理不同水质的废水;2、自动化程度高,PLC控制,全过程可达到无人值守;3、装置集成橇装化,美观紧凑,固定在一个或者多个基板上,可以用卡车或拖车迁移以便装置能够根据需要在不同地点循环使用,可对油气田钻井、压裂所产生的废水进行随时处理,且能达到国家相关排放标准直接排放的废水处理工艺装置;4、连续式处理装置针对性强,运行稳定性高,处理费用低。
附图说明:
图1是本实用新型的连接结构示意图。
图面说明: 1预处理单元 1-1第一加酸调pH值混合槽 1-2第一絮凝剂混凝槽 1-3助凝剂搅拌槽 2固液分离单元Ⅰ 2-1第一斜板沉淀槽 2-2中间水槽 2-3第一过滤器 2-4过滤器进水泵 3高级催化氧化单元 3-1一级催化氧化槽 3-2二级催化氧化槽 3-3三级催化氧化槽 4 Fe/C微电解单元 4-1 Fe/C微电解槽体 4-2 Fe/C填料 4-3移送泵 5固液分离单元Ⅱ 5-1第二加碱调pH值混合槽 5-2第二絮凝剂混凝槽 5-3第二斜板沉淀槽 5-4第一污泥输送泵 5-5沉淀槽出水移送泵 6深度处理单元 6-1第二过滤器 6-2高效吸附器 7污泥脱水单元 7-1压滤机 7-2第二污泥输送泵 7-3滤液受槽 8自动控制单元。
具体实施方式:
为了更好地理解与实施,下面结合附图给出具体实施例详细说明本实用新型。
参见图1,根据设计要求,将由第一加酸调pH值混合槽1-1、第一絮凝剂混凝槽1-2和助凝剂搅拌槽1-3连接组成预处理单元1,进行PH调整和混凝;
将第一斜板沉淀槽2-1、中间水槽2-2、过滤器进水泵2-4、第一过滤器2-3通过管路依次连接组成固液分离单元Ⅰ2,进行沉淀和过滤,沉淀方式采用斜板沉淀,过滤方式采用纤维束过滤器;
将一级催化氧化槽3-1、二级催化氧化槽3-2和三级催化氧化槽3-2连接组成高级催化氧化单元3,采用三步法芬顿氧化,提高药剂利用率和反应效率,采用空气搅拌方式,且该单元位于Fe/C微电解单元4之前,省去该单元PH调整药剂,降低处理成本;
将Fe/C微电解槽体4-1和移送泵4-3通过管路连接组成Fe/C微电解单元4,Fe/C微电解槽体4-1内有Fe/C填料4-2,填料为铁碳填料,通过高温冶炼形成架构式微孔合金结构,比表面积大,活性强,不钝化、不板结,其化学成分为铁75-85%,碳10-20%,催化剂5%,规格1cm*3cm,Fe/C微电解单元中电解槽采用底部穿孔管曝气,推流式进水方式;
将第二加碱调pH值混合槽5-1、第二絮凝剂混凝槽5-2连接在一起,与第二斜板沉淀槽5-3和沉淀槽出水移送泵5-5通过管路连接组成固液分离单元Ⅱ5,第二斜板沉淀槽5-3通过管路连接第一污泥输送泵5-4;进行PH值调整和絮凝沉淀,沉淀方式采用斜板沉淀;
将第二过滤器6-1和高效吸附器6-2通过管路连接组成深度处理单元6,进行过滤和活性炭吸附,采用纤维束过滤器和活性炭吸附器;
将压滤机7-1和滤液受槽7-3通过管路连接组成污泥脱水单元7,压滤机7-1通过管路和第二污泥输送泵7-2与第一斜板沉淀槽2-1连接,通过管路与第一污泥输送泵5-4连接;污泥脱水单元7采用板框压滤机,并设有滤液及滤饼接收装置;
将配电装置、自控装置、监测仪表安装组成自动控制单元8;
将上述预处理单元1、固液分离单元Ⅰ2、高级催化氧化单元3、Fe/C微电解单元4、固液分离单元Ⅱ5、深度处理单元6、污泥脱水单元7在来水方向上按照先后顺序依次通过管道相互连接,实现工艺处理过程,将自动控制单元8通过电缆与各单元连接,实现对各单元进行自动控制,可以准确控制加药量、反应时间及其他工艺条件,实现无人值守。
本实用新型所述的车载式橇装油气田钻井、压裂废水自动处理装置,工作时,待处理钻井或者压裂废水首先通过泵进入预处理单元,首先通过调整PH值,然后经过絮凝剂混凝槽、助凝剂搅拌槽混凝处理,接着通过管道自流进入后续的固液分离单元Ⅰ,在斜板沉淀槽内絮凝沉淀去除部分悬浮物,接着通过过滤器进水泵进入新型纤维束过滤器过滤,后进入高级催化氧化单元,对有机物进行氧化分解,出水直接自流至Fe/C微电解单元的反应槽进行进一步处理,本步反应结束后通过移送泵进入固液分离单元Ⅱ,进入加碱调pH值混合槽进行调整、絮凝剂混凝槽絮凝反应和斜板沉淀槽沉淀,最后通过沉淀槽出水移送泵进入深度处理单元,该单元包含纤维束过滤和高效吸附器,对废水进行进一步把关处理,保证达标排放;固液分离单元Ⅰ和固液分离单元Ⅱ所产生的污泥,被污泥输送泵输送至污泥脱水单元的板框压滤机脱水,泥饼经过固化措施得到无害化妥善处置,不会对环境产生影响。
Claims (2)
1.车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于它包括预处理单元(1)、固液分离单元Ⅰ(2)、高级催化氧化单元(3)、Fe/C微电解单元(4)、固液分离单元Ⅱ(5)、深度处理单元(6)、污泥脱水单元(7),预处理单元(1)、固液分离单元Ⅰ(2)、高级催化氧化单元(3)、Fe/C微电解单元(4)、固液分离单元Ⅱ(5)、深度处理单元(6)依次通过管道相互连接,污泥脱水单元(7)通过管路分别与固液分离单元Ⅰ(2)和固液分离单元Ⅱ(5)连接,自动控制单元(8)通过电缆与各单元连接。
2.根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的预处理单元(1)由第一加酸调pH值混合槽(1-1)、第一絮凝剂混凝槽(1-2)和助凝剂搅拌槽(1-3)连接组成。
3、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的固液分离单元Ⅰ(2)由第一斜板沉淀槽(2-1)、中间水槽(2-2)、第一过滤器(2-3)和过滤器进水泵(2-4)通过管路连接组成。
4、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的高级催化氧化单元(3)由一级催化氧化槽(3-1)、二级催化氧化槽(3-2)和三级催化氧化槽(3-2)连接组成。
5、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的Fe/C微电解单元(4)由Fe/C微电解槽体(4-1)和移送泵(4-3)通过管路连接组成。
6、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的固液分离单元Ⅱ(5)由第二加碱调pH值混合槽(5-1)、第二絮凝剂混凝槽(5-2)、第二斜板沉淀槽(5-3)、第一污泥输送泵(5-4)和沉淀槽出水移送泵(5-5)通过管路连接组成。
7、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的深度处理单元(6)由第二过滤器(6-1)和高效吸附器(6-2)通过管路连接组成。
8、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的污泥脱水单元(7)由压滤机(7-1)、第二污泥输送泵(7-2)和滤液受槽(7-3)通过管路连接组成,压滤机(7-1)通过管路分别与第一斜板沉淀槽(2-1)和第二斜板沉淀槽(5-3)连接。
9、根据权利要求1所述的车载式橇装油气田钻井、压裂废水自动处理装置,其特征在于所述的自动控制单元(8)由配电装置、自控装置、监测仪表组成。
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