CN209941140U - 电镀废水循环回收减排装置 - Google Patents
电镀废水循环回收减排装置 Download PDFInfo
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- CN209941140U CN209941140U CN201920499083.1U CN201920499083U CN209941140U CN 209941140 U CN209941140 U CN 209941140U CN 201920499083 U CN201920499083 U CN 201920499083U CN 209941140 U CN209941140 U CN 209941140U
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- recovery
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- 238000009713 electroplating Methods 0.000 title claims abstract description 32
- 238000004064 recycling Methods 0.000 title claims abstract description 19
- 239000002351 wastewater Substances 0.000 title claims abstract description 19
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Abstract
电镀废水循环回收减排装置，包括电镀漂洗槽、第一金回收水洗槽、第二金回收水洗槽、RO水回收箱和RO水处理机构,第一金回收水洗槽、第二金回收水洗槽和RO水回收箱自左向右紧挨设置且第一金回收水洗槽的高度大于第二金回收水洗槽的高度，第二金回收水洗槽的高度大于RO水回收箱的高度，第一金回收水洗槽上设有出水口,RO水处理机构包括高压水泵和超滤膜管，超滤膜管上设有进水口、透过水出口和浓缩水出口，高压水泵的进水口通过金回收进水管与第一金回收水洗槽的出水口相接。本实用新型具有节能环保，回收电镀废水中的金和水，减少废水排放，减少污染，操作维护方便，成本低等优点。
Description
技术领域
本实用新型属于废水处理技术领域，具体涉及一种电镀废水循环回收减排装置。
背景技术
清洗水破氰后，一般采用化学沉淀方法处理，采用化学沉淀，浪费了大量的化学药剂，不能对金、水等进行回收，同时化学沉淀过程中会产生大量污泥，不符合国家提倡的节能，清洁生产的要求。为了使废水能够循环利用，同时还能回收废水中的金属金，目前普遍的做法是在常规的污水处理工艺过程中增加离子交换树脂，用离子交换树脂吸附金属金。离子交换树脂吸附饱和后，需更换离子交换树脂，即离子交换树脂处理的水量不多，另外回收金属金时，一般会将离子交换树脂焚烧，但这样产生了大气污染。
电镀时利用化学和电化学方法在金属或者其它材料表面镀上各种金属的工艺，电镀技术广泛应用于机器制造、轻工业、电子、化工、照相、材料、医药以及航空航天领域，市场需求大，然而随着电镀工业的快速发展和环保要求的日益提高，目前电镀废水治理已经开始进入清洁生产工艺、总量控制和循环经济整合阶段，资源回收利用和闭路循环是发展的主流方向。
实用新型内容
本实用新型为了解决现有技术中的不足之处，提供一种节能环保，回收电镀废水中的金和水，减少废水排放，减少污染，操作维护方便，成本低的电镀废水循环回收减排装置。
为解决上述技术问题，本实用新型采用如下技术方案：
电镀废水循环回收减排装置，包括电镀漂洗槽、第一金回收水洗槽、第二金回收水洗槽、RO水回收箱和RO水处理机构；
第一金回收水洗槽、第二金回收水洗槽和RO水回收箱自左向右紧挨设置且第一金回收水洗槽的高度大于第二金回收水洗槽的高度，第二金回收水洗槽的高度大于RO水回收箱的高度，第一金回收水洗槽上设有出水口；
RO水处理机构包括高压水泵和超滤膜管，超滤膜管上设有进水口、透过水出口和浓缩水出口，高压水泵的进水口通过金回收进水管与第一金回收水洗槽的出水口相接，超滤膜管的进水口通过连通管与高压水泵的出水口相接，超滤膜管的透过水出口通过第二连接管与第一金回收水洗槽相连接，超滤膜管的浓缩水出口通过含金浓缩液回收管与电镀漂洗槽相连接，超滤膜管上连接有RO回水管，RO回水管的一端连接在超滤膜管上，RO回水管的另一端与RO水回收箱相连接；
所述连通管上设有止回过滤机构，止回过滤机构包括止回阀和电动阀，止回阀位于靠近高压水泵的一侧，电动阀位于靠近超滤膜管的一侧；
所述第一金回收水洗槽内设有水位传感器。
采用上述技术方案，本实用新型具有以下有益效果：
(1)本实用新型设有第一金回收水洗槽、第二金回收水洗槽和RO水回收箱，第一金回收水洗槽、第二金回收水洗槽和RO水回收箱自左向右紧挨设置且第一金回收水洗槽的高度大于第二金回收水洗槽的高度，第二金回收水洗槽的高度大于RO水回收箱的高度，第一金回收水洗槽、第二金回收水洗槽和RO水回收箱之间采用溢流的方式，当第一金回收水洗槽内的水过满时，第一金回收水洗槽溢流到第二金回收水洗槽，第二金回收水洗槽内的水过满时溢流到RO水回收箱，最终RO水回收箱通过RO回水管经超滤膜管又进入第一金回收水洗槽，实现了水的循环利用，节约了水资源，减少了水排放，减少了污染，回收了电镀废水内的水；
(2)本实用新型设有高压水泵和超滤膜管，超滤膜管具有特性，水能通过超滤膜管，大分子量的金离子无法通过超滤膜管，由高压水泵提供动力，可以让水与金离子分离，金离子浓度提高，含金浓缩液不断浓缩，使更多的水与金离子分离，分离出来的水回到第一金回收水洗槽继续使用，浓缩后的含金浓缩液回到电镀漂洗槽继续使用，在此过程中，水与金离子的分离是物理分离，没有添加任何化学药剂，不会产生环境污染，且将水和金离子都进行了回收利用，节能环保，成本较低，操作维护方便；
(3)本实用新型连通管上设有止回过滤机构，止回过滤机构包括止回阀和电动阀，止回阀的使用可以防止水流倒流，损坏高压水泵，避免发生事故，电动阀控制连通管内水流的通断，使用简单方便，第一金回收水洗槽内设有水位传感器，水位传感器可以实时检测第一金回收水洗槽的水位，当水位过高时，水位传感器可以及时进行反馈与报警；
综上所述，本实用新型具有节能环保，回收电镀废水中的金和水，减少废水排放，减少污染，操作维护方便，成本低等优点。
附图说明
图1是本实用新型的结构示意图；
图2是图1的俯视图；
图3是图2中P处的放大图。
具体实施方式
如图1-图3所示，本实用新型的电镀废水循环回收减排装置，包括电镀漂洗槽1、第一金回收水洗槽2、第二金回收水洗槽3、RO水回收箱4和RO水处理机构；
第一金回收水洗槽2、第二金回收水洗槽3和RO水回收箱4自左向右紧挨设置且第一金回收水洗槽2的高度大于第二金回收水洗槽3的高度，第二金回收水洗槽3的高度大于RO水回收箱4的高度，第一金回收水洗槽2上设有出水口；
RO水处理机构包括高压水泵5和超滤膜管6，超滤膜管6上设有进水口、透过水出口和浓缩水出口，高压水泵5的进水口通过金回收进水管7与第一金回收水洗槽2的出水口相接，超滤膜管6的进水口通过连通管8与高压水泵5的出水口相接，超滤膜管6的透过水出口通过第二连接管与第一金回收水洗槽2相连接，超滤膜管6的浓缩水出口通过含金浓缩液回收管9与电镀漂洗槽1相连接，超滤膜管6上连接有RO回水管10，RO回水管10的一端连接在超滤膜管6上，RO回水管10的另一端与RO水回收箱4相连接；
所述连通管8上设有止回过滤机构，止回过滤机构包括止回阀和电动阀，止回阀位于靠近高压水泵5的一侧，电动阀位于靠近超滤膜管6的一侧；
所述第一金回收水洗槽2内设有水位传感器11。
本实用新型的具体使用过程如下：
本实用新型在使用时，产品进行电镀然后电镀漂洗槽1内产生电镀废水，电镀废水进入第一金回收水洗槽2，第一金回收水洗槽2内的电镀废水装满后溢流到第二金回收水洗槽3，第二金回收水洗槽3内的电镀废水装满后溢流到RO水回收箱4，与此同时电动阀开启，高压水泵5进行工作，第一金回收水洗槽2内的电镀废水经金回收进水管7在高压水泵5的输送下经过连通管8进入超滤膜管6，止回阀防止水流倒流损坏高压水泵5等造成事故，超滤膜管6具有特性，水能通过超滤膜管6，大分子量的金离子无法通过超滤膜管6，由高压水泵5提供动力，可以让水与金离子分离，金离子浓度提高，含金浓缩液不断浓缩，使更多的水与金离子分离，分离出来的水经超滤膜管6的透过水出口通过第二连接管回到第一金回收水洗槽2，浓缩后的含金浓缩液经超滤膜管6的浓缩水出口通过含金浓缩液回收管9回到电镀漂洗槽1继续使用；
此时，分离出来的水进入第一金回收水洗槽2，第一金回收水洗槽2持续向第二金回收水洗槽3溢流，第二金回收水洗槽3内的水持续向RO水回收箱4内溢流，RO水回收箱4内的水通过RO回水管10再次回到超滤膜管6继续进行水和金离子的分离，在整个运转工作过程中，水与金离子的分离是物理分离，没有添加任何化学药剂，不会产生环境污染，且将水和金离子都进行了回收利用，节能环保，成本较低，操作维护方便。
本实施例并非对本实用新型的形状、材料、结构等作任何形式上的限制，凡是依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均属于本实用新型技术方案的保护范围。
Claims (3)
1.电镀废水循环回收减排装置，其特征在于：包括电镀漂洗槽、第一金回收水洗槽、第二金回收水洗槽、RO水回收箱和RO水处理机构；
第一金回收水洗槽、第二金回收水洗槽和RO水回收箱自左向右紧挨设置且第一金回收水洗槽的高度大于第二金回收水洗槽的高度，第二金回收水洗槽的高度大于RO水回收箱的高度，第一金回收水洗槽上设有出水口；
RO水处理机构包括高压水泵和超滤膜管，超滤膜管上设有进水口、透过水出口和浓缩水出口，高压水泵的进水口通过金回收进水管与第一金回收水洗槽的出水口相接，超滤膜管的进水口通过连通管与高压水泵的出水口相接，超滤膜管的透过水出口通过第二连接管与第一金回收水洗槽相连接，超滤膜管的浓缩水出口通过含金浓缩液回收管与电镀漂洗槽相连接，超滤膜管上连接有RO回水管，RO回水管的一端连接在超滤膜管上，RO回水管的另一端与RO水回收箱相连接。
2.根据权利要求1所述的电镀废水循环回收减排装置，其特征在于：所述连通管上设有止回过滤机构，止回过滤机构包括止回阀和电动阀，止回阀位于靠近高压水泵的一侧，电动阀位于靠近超滤膜管的一侧。
3.根据权利要求1所述的电镀废水循环回收减排装置，其特征在于：所述第一金回收水洗槽内设有水位传感器。
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