A kind of electroplating cyanide-containing wastewater decyanation treatment system

Abstract

The utility model discloses a kind of electroplating cyanide-containing wastewater de-cyanide processing systems, including collection assembly, processing cylinder installed in collection assembly, stirring assembly and feed pipe installed in processing cylinder, feeding pipe and outlet valve installed in processing cylinder, monitor and first liquid outlet valve installed in processing cylinder, and blocking component installed in collection assembly, collection assembly includes collection box, the collection drawer of detachable installation in collection box, processing cylinder is installed in collection box, collection box is equipped with collection chamber, collection drawer is located in collection chamber, processing cylinder is communicated with collection chamber, one end of blocking component is slidably installed in collection box, and first liquid outlet valve is located above collection box;The collection assembly set can collect the precipitation after processing, and the electroplating solution after processing flows out from the first liquid outlet valve, the electroplating solution after processing can be solid-liquid separated, secondary treatment is not needed, processing time and cost are saved, and the first liquid outlet valve is avoided to be blocked, to ensure the normal processing.

Description

Technical Field

[0001] This utility model relates to the field of electroplating wastewater treatment technology, and more particularly to a cyanide removal treatment system for cyanide-containing electroplating wastewater. Background Technology

[0002] Cyanide ions, as strong complexing agents, can form complexes with numerous metal ions, thus finding widespread application in the metallurgical and electroplating industries. In copper plating processes, cyanide copper plating is widely used due to its ease of operation and the resulting coating's bright surface, fine crystals, low porosity, ease of polishing, good conductivity, and solderability. This has led to the generation of large quantities of cyanide-containing wastewater from electroplating, despite the toxicity of cyanide and its environmental hazards. Cyanide is highly toxic and acts rapidly, entering the human body through skin, inhalation, mucous membrane cavities, and oral ingestion. The released cyanide ions can bind to ferric ions in cytochrome enzymes, preventing them from carrying oxygen, hindering cellular respiration, and causing tissue hypoxia and asphyxiation. Therefore, my country's electroplating wastewater discharge standards strictly limit the cyanide content in wastewater. Currently, the main methods for treating cyanide-containing wastewater from electroplating are alkaline chlorination, hydrogen peroxide oxidation, ferrous sulfate, and adsorption. For example, the cyanide removal device for cyanide-containing wastewater disclosed in patent CN216106117U can remove cyanide from cyanide-containing wastewater, but it does not have a sedimentation and collection structure when using hydrogen peroxide for cyanide removal. The sediment flows out with the treated water and requires secondary treatment, which wastes time and costs and easily causes blockage of the outlet, affecting the normal operation of the treatment. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a cyanide removal treatment system for electroplating wastewater containing cyanide. The system uses a collection component to collect the treated precipitate, while the treated electroplating solution flows out from the first outlet valve. This allows for solid-liquid separation of the treated electroplating solution, eliminating the need for secondary treatment, saving processing time and costs, and preventing blockage of the first outlet valve, thus ensuring the normal operation of the treatment process.

[0004] To achieve the above objectives, the present invention provides a cyanide removal treatment system for electroplating cyanide-containing wastewater, comprising a collection assembly, a treatment cylinder installed on the collection assembly, a stirring assembly and a feed pipe installed on the treatment cylinder, a feeding pipe and an exhaust valve installed on the treatment cylinder, a monitor and a first liquid outlet valve installed on the treatment cylinder, and a stop assembly installed on the collection assembly. The collection assembly includes a collection box and a detachable collection drawer installed on the collection box. The treatment cylinder is installed on the collection box, the collection box has a collection chamber, the collection drawer is located in the collection chamber, the treatment cylinder communicates with the collection chamber, one end of the stop assembly is slidably installed on the collection box, and the first liquid outlet valve is located above the collection box.

[0005] As a preferred embodiment, the processing cylinder is provided with a processing chamber and a discharge port, the discharge port is connected to the processing chamber, a portion of the stirring assembly is installed in the processing chamber, the feed pipe, the feeding pipe and the vent valve are all connected to the processing chamber, the discharge port is connected to the collection chamber, the detection end of the monitor is located in the processing chamber, and the first discharge valve is connected to the processing chamber.

[0006] As a preferred embodiment, the collection box is provided with an inlet, the collection box has multiple spaced support frames, the inlet is connected to the collection chamber, the bottom of the processing cylinder is located in the inlet, and the processing cylinder is installed on the support frame.

[0007] As a preferred embodiment, it further includes a second liquid outlet valve installed in the collection box, the second liquid outlet valve communicating with the collection chamber, the collection drawer having a plurality of spaced-apart liquid discharge holes, and the bottom of the collection chamber being inclined.

[0008] As a preferred embodiment, the blocking assembly includes a blocking frame installed on the collection box, a blocking cylinder installed on the blocking frame, and a blocking plate installed on the blocking cylinder, with one end of the blocking plate slidably installed on the collection box.

[0009] As a preferred embodiment, the collection box is provided with a stop groove, the stop groove is connected to the inlet, the width of the stop groove is greater than the diameter of the inlet, and the stop plate is slidably installed in the stop groove.

[0010] As a preferred embodiment, the stirring assembly includes a stirring motor mounted on the processing cylinder, a stirring shaft mounted on the stirring motor, and stirring blades mounted on the stirring shaft. Both the stirring shaft and the stirring blades are located in the processing chamber, and there are multiple stirring blades arranged at intervals.

[0011] The beneficial effects of this utility model are as follows: the collected components can collect the treated precipitate, and the treated electroplating solution flows out from the first outlet valve, thereby separating the solid and liquid in the treated electroplating solution without the need for secondary treatment, saving processing time and cost, and avoiding blockage of the first outlet valve, ensuring the normal operation of the process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a cyanide removal treatment system for electroplating wastewater according to this utility model.

[0013] Figure 2 for Figure 1A cross-sectional structural diagram of a cyanide removal treatment system for electroplating wastewater containing cyanide.

[0014] Figure 3 for Figure 1 A schematic diagram of the structure of a collection component in a cyanide removal treatment system for electroplating wastewater containing cyanide.

[0015] Figure 4 for Figure 1 A schematic diagram of the structure of a stirring component in a cyanide removal treatment system for electroplating wastewater containing cyanide.

[0016] Figure 5 for Figure 1 A schematic diagram of the structure of a stop component in a cyanide removal treatment system for electroplating wastewater containing cyanide.

[0017] Reference numerals: 100, Collection assembly; 110, Collection box; 111, Collection chamber; 112, Inlet; 113, Support frame; 114, Second outlet valve; 115, Stop groove; 116, Limit groove; 120, Collection drawer; 121, Drop hole; 122, Limit post; 200, Processing cylinder; 210, Processing chamber; 220, Drop hole; 300, Stirring assembly; 310, Stirring motor; 320, Stirring shaft; 330, Stirring blade; 331, Resistance reduction hole; 400, Feed pipe; 500, Feeding pipe; 600, Air outlet valve; 700, Monitor; 800, First outlet valve; 900, Stop assembly; 910, Stop frame; 920, Stop cylinder; 930, Stop plate. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figures 1 to 5 As shown, this utility model provides a cyanide removal treatment system for electroplating cyanide-containing wastewater, including a collection component 100, a treatment cylinder 200 installed in the collection component 100, a stirring component 300 and a feed pipe 400 installed in the treatment cylinder 200, a feeding pipe 500 and an exhaust valve 600 installed in the treatment cylinder 200, a monitor 700 and a first liquid outlet valve 800 installed in the treatment cylinder 200, and a stop component 900 installed in the collection component 100. The device 100 includes a collection box 110, a detachable collection drawer 120 installed in the collection box 110, a processing cylinder 200 installed in the collection box 110, a collection chamber 111 in the collection box 110, the collection drawer 120 located in the collection chamber 111, the processing cylinder 200 communicating with the collection chamber 111, one end of a stop assembly 900 slidably installed in the collection box 110, and a first outlet valve 800 located above the collection box 110. The collection assembly 100 can collect the treated precipitate, and the treated electroplating solution flows out from the first outlet valve 800. This allows for solid-liquid separation of the treated electroplating solution, eliminating the need for secondary treatment, saving processing time and costs, and preventing clogging of the first outlet valve 800, ensuring normal processing.

[0022] The processing cylinder 200 is provided with a processing chamber 210 and a discharge port 220. The discharge port 220 is connected to the processing chamber 210. Part of the stirring assembly 300 is installed in the processing chamber 210. The feed pipe 400, the feeding pipe 500, and the vent valve 600 are all connected to the processing chamber 210. The discharge port 220 is connected to the collection chamber 111. The detection end of the monitor 700 is located in the processing chamber 210. The first discharge valve is connected to the processing chamber 210. Electroplating waste liquid enters through the feed pipe 400, and then the pH value of the electroplating waste liquid is adjusted by adding adjusting reagents through the feeding pipe 500. After adjustment, a catalyst is added and stirred evenly by the stirring assembly 300. The gas generated during catalysis is sent out through the vent valve 600. After catalysis is completed, the treated wastewater is sent out through the first liquid outlet valve 800, and the precipitate falls into the collection assembly 100 from the discharge port 220.

[0023] The collection box 110 is provided with an inlet 112 and has multiple spaced-apart support frames 113. The inlet 112 communicates with the collection chamber 111. The bottom of the processing cylinder 200 is located in the inlet 112, and the processing cylinder 200 is mounted on the support frame 113. A second liquid outlet valve 114 is also included in the collection box 110 and communicates with the collection chamber 111. The collection drawer 120 is provided with multiple spaced-apart drain holes 121. The bottom of the collection chamber 111 is inclined. Sediment enters the collection chamber 111 from the drain hole 220 via the inlet 112 and is collected by the collection drawer 120. The liquid in the sediment falls to the bottom of the collection chamber 111 through the drain holes 121 and is finally discharged through the second liquid outlet valve 114. In this embodiment, the collection box 110 is provided with limiting grooves 116 on both sides, and the limiting grooves 116 are connected to the collection chamber 111. The collection drawer 120 is provided with limiting posts 122 on both sides, and the limiting posts 122 are matched with the limiting grooves 116, so that the collection drawer 120 can be suspended in the collection chamber 111.

[0024] The stop assembly 900 includes a stop frame 910 mounted on the collection box 110, a stop cylinder 920 mounted on the stop frame 910, and a stop plate 930 mounted on the stop cylinder 920. One end of the stop plate 930 is slidably mounted on the collection box 110. The collection box 110 is provided with a stop groove 115, which communicates with the feed inlet 112. The width of the stop groove 115 is greater than the diameter of the feed inlet 112, and the stop plate 930 is slidably mounted in the stop groove 115. When treating electroplating waste liquid, the baffle plate 930 blocks the inlet 112 to prevent the electroplating waste liquid from entering the collection tank 110 from the inlet 112. After the electroplating waste liquid is treated, the treated liquid is sent out from the first outlet valve 800. When only sediment remains, the baffle cylinder 920 works to drive the baffle plate 930 to move and open the inlet 112. The sediment can enter the collection chamber 111 from the inlet and is finally collected by the collection drawer 120. At this time, clean water can also be sent into the treatment chamber 210 from the feed pipe 400 to clean the sediment and send it into the collection drawer 120. After standing for a period of time, the liquid in the sediment falls from the drop hole 121 into the bottom of the collection drawer 120. Then the collection drawer 120 can be pulled out, the sediment can be cleaned and put back in. The second outlet valve 114 can also be opened to send out the liquid that seeps out of the sediment.

[0025] The stirring assembly 300 includes a stirring motor 310 mounted on the processing cylinder 200, a stirring shaft 320 mounted on the stirring motor 310, and stirring blades 330 mounted on the stirring shaft 320. Both the stirring shaft 320 and the stirring blades 330 are located in the processing chamber 210. Multiple stirring blades 330 are arranged at intervals. During processing, after adding pH adjuster, hydrogen peroxide, and catalyst to the collection chamber 111, stirring is required. Simply turn on the stirring motor 310 to rotate the stirring shaft 320, which in turn rotates the stirring blades 330, thus performing stirring. In this embodiment, the stirring blades 330 are provided with multiple spaced-apart resistance-reducing holes 331, which can reduce the resistance received by the stirring blades 330 during stirring.

[0026] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A cyanide removal treatment system for electroplating wastewater containing cyanide, characterized in that, The device includes a collection assembly, a processing cylinder installed on the collection assembly, a stirring assembly and a feed pipe installed on the processing cylinder, a feeding pipe and an air outlet valve installed on the processing cylinder, a monitor and a first liquid outlet valve installed on the processing cylinder, and a stop assembly installed on the collection assembly. The collection assembly includes a collection box and a detachable collection drawer installed on the collection box. The processing cylinder is installed on the collection box, the collection box has a collection chamber, the collection drawer is located in the collection chamber, the processing cylinder communicates with the collection chamber, one end of the stop assembly is slidably installed on the collection box, and the first liquid outlet valve is located above the collection box.

2. The electroplating cyanide-containing wastewater decyanation treatment system according to claim 1, characterized in that: The processing cylinder is provided with a processing chamber and a discharge port. The discharge port is connected to the processing chamber. Part of the stirring assembly is installed in the processing chamber. The feed pipe, the feeding pipe and the air outlet valve are all connected to the processing chamber. The discharge port is connected to the collection chamber. The detection end of the monitor is located in the processing chamber. The first liquid outlet valve is connected to the processing chamber.

3. The electroplating cyanide-containing wastewater decyanation treatment system according to claim 2, characterized in that: The collection box is provided with an inlet and has multiple spaced support frames. The inlet is connected to the collection chamber. The bottom of the processing cylinder is located in the inlet and is mounted on the support frame.

4. The electroplating cyanide-containing wastewater decyanation treatment system according to claim 3, characterized in that: It also includes a second liquid outlet valve installed in the collection box, the second liquid outlet valve being connected to the collection chamber, the collection drawer having a plurality of spaced-apart liquid discharge holes, and the bottom of the collection chamber being inclined.

5. The electroplating cyanide-containing wastewater decyanation treatment system according to claim 4, characterized in that: The blocking assembly includes a blocking frame installed on the collection box, a blocking cylinder installed on the blocking frame, and a blocking plate installed on the blocking cylinder, with one end of the blocking plate slidably installed on the collection box.

6. The electroplating cyanide-containing wastewater decyanation treatment system according to claim 5, characterized in that: The collection box is provided with a stop groove, which is connected to the feed inlet. The width of the stop groove is greater than the diameter of the feed inlet, and the stop plate is slidably installed in the stop groove.

7. The electroplating cyanide-containing wastewater decyanation treatment system according to claim 2, characterized in that: The stirring assembly includes a stirring motor installed in the processing cylinder, a stirring shaft installed in the stirring motor, and stirring blades installed in the stirring shaft. The stirring shaft and the stirring blades are both located in the processing chamber, and there are multiple stirring blades arranged at intervals.

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