A wastewater treatment device for metal extraction

Abstract

The application relates to the technical field of wastewater recovery devices, in particular to a wastewater treatment device for metal extraction, which comprises a decomposition cylinder, a liquid discharge valve is fixedly connected to the bottom end output port of the decomposition cylinder, an isolation disc is fixedly installed at the inner end of the decomposition cylinder, a plurality of support pipes are fixedly installed at the lower end of the isolation disc, a central rod is rotatably installed at the bottom end of the isolation disc, the output end of a driving motor is fixedly connected with the central rod, a guide pipe is fixedly installed at the inner end of the support pipe, helical holes are formed in the surface of the guide pipe, and a collecting device is arranged between the guide pipe and the support pipe. The device drives the electromagnetic rod to rotate through the output gear plate, so that the metal particles in the metal wastewater can be attached to the surface of the electromagnetic rod in the stirring and flowing process, and are guided into the output pipe along the helical holes, the treatment process and the metal recovery process are synchronously performed, compared with the simple sedimentation and discharge mode in the prior art, the device can effectively improve the recovery efficiency of heavy metal particles and reduce the waste of metal resources.

Description

Technical Field

[0001] This invention relates to the field of wastewater recycling devices, specifically a wastewater treatment device for metal refining. Background Technology

[0002] As a crucial component of metallurgical manufacturing, the metal refining industry generates substantial amounts of industrial wastewater with high concentrations of pollutants during processes such as ore smelting, leaching purification, electrolytic refining, and metal recovery. This wastewater is typically characterized by complex composition, large fluctuations in pH levels, high levels of heavy metal ions, and a high concentration of suspended particulate matter. Improper treatment can easily cause serious pollution to surrounding aquatic environments and ecosystems.

[0003] First, existing technologies mostly rely on sedimentation separation as the main method. Heavy metal particles or flocs often rely on natural sedimentation for discharge, which easily leads to low recovery efficiency and loss of metal resources with sludge. It is difficult to achieve the simultaneous operation of the treatment process and the metal recovery process. Second, the treatment of metal wastewater usually requires the addition of powdered reaction reagents or catching agents. However, existing dosing devices mostly use simple gravity feeding or mechanical pushing methods. Powdered reagents are prone to wetting and clumping in humid environments, resulting in poor feeding or even blockage, which affects the continuity of the reaction and the stability of the treatment. Moreover, they require frequent manual cleaning and maintenance. Therefore, this application proposes a wastewater treatment device for metal refining. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device for metal refining, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device for metal refining, comprising a decomposition cylinder, a drain valve fixedly connected to the bottom outlet of the decomposition cylinder, an isolation plate fixedly installed at the inner end of the decomposition cylinder, and multiple support pipes fixedly installed at the lower end of the isolation plate, the support pipes being arranged in a ring, a central rod rotatably installed at the bottom end of the isolation plate, and the output end of a drive motor fixedly connected to the central rod, a stirring plate fixedly installed on the outer surface of the central rod, a guide pipe fixedly installed at the inner end of the support pipe, and a spiral hole opened on the surface of the guide pipe, the spiral hole being used to guide and transport the settled metal particles and flocs, a collecting device being provided between the guide pipe and the support pipe, and multiple slag discharge pipes fixedly installed at the inner end of the decomposition cylinder, the multiple slag discharge pipes being respectively arranged corresponding to the bottom end of each support pipe, so that the settled metal slag can be discharged through the slag discharge pipes.

[0006] As a further embodiment of the present invention, a passive gear is rotatably installed at the inner end of the support tube, an electromagnetic rod is passed through the inner end of the guide tube, and the upper end of the electromagnetic rod is fixedly connected to the passive gear. An isolation plate is fixedly installed at the inner end of the support tube. By rotatably installing the passive gear at the inner end of the support tube and fixing the electromagnetic rod to the passive gear, the electromagnetic rod can rotate synchronously under the driving force of stirring, thereby enhancing the adsorption and guiding transport capacity of metal particles in metal wastewater and improving the recovery efficiency of metal substances.

[0007] As a further embodiment of the present invention, the isolation plate divides the interior of the support tube into two independent chambers. The guide tube is exposed on the outside of the support tube, and an output tube is fixedly installed at the inner end of the support tube. The bottom end of the output tube corresponds to the upper end of the slag discharge tube. By dividing the interior of the support tube into two independent chambers through the isolation plate, the guiding and conveying of metal particles and the slag discharge process are isolated from each other, avoiding interference from impurity backflow and improving separation efficiency.

[0008] As a further embodiment of the present invention, the collection device includes a passive cylinder, which is rotatably mounted on the upper end of the output pipe. A rectangular hole is provided on the side wall of the output pipe, and the rectangular hole is correspondingly connected to the end of the spiral hole in the support pipe, so that the metal particles precipitated in the metal wastewater can enter the interior of the output pipe through the rectangular hole.

[0009] As a further embodiment of the present invention, a jumping rod is inserted inside the output tube, an isolation plug is fixedly installed at the bottom end of the jumping rod, an agitator is rotatably installed at the inner end of the output tube, and the agitator is located below the isolation plug, a force-receiving plate is fixedly installed at the upper end of the jumping rod, the force-receiving plate is connected to the output tube by an auxiliary spring, a protrusion is fixedly installed at the bottom end of the passive cylinder, and multiple force-receiving blocks are fixedly installed circumferentially above the force-receiving plate, with the protrusion positioned between any two adjacent force-receiving blocks.

[0010] As a further embodiment of the present invention, an addition tube is fixedly installed at the inner end of the support tube. The addition tube is used to fill the reaction reagents required in the metal wastewater treatment process, and the addition tube is located above the passive cylinder. The addition tube is equipped with a transmission screw inside, and a lower pressure plate is threaded on the surface of the transmission screw. The lower pressure plate is used to apply downward pressure to the powdered reagents. By setting an addition tube for filling reaction reagents at the inner end of the support tube, the reaction reagents can be centrally stored and replenished in a timely manner during the wastewater treatment process. The addition tube is located above the passive cylinder, which facilitates automatic dosing in conjunction with the device. At the same time, the transmission screw and the lower pressure plate threaded with it inside the addition tube can apply continuous downward pressure to the powdered reagents, so that the reagents can be stably conveyed downwards, avoiding material flow obstruction caused by moisture clumping or accumulation, thereby improving the continuity of dosing and the reaction treatment effect.

[0011] As a further embodiment of the present invention, the lower pressure plate and the adding tube are connected by a return spring. A disturbance plate is rotatably mounted on the surface of the support tube. A movable hole is opened on the surface of the support tube, and a pressure plate is slidably mounted in the movable hole. A squeezing block is fixedly mounted on one end of the disturbance plate near the pressure plate. The squeezing block abuts against the pressure plate. By setting a return spring between the lower pressure plate and the adding tube, the lower pressure plate can automatically spring back to its original position after the reagent is pressed down, avoiding the compaction and accumulation of powdered reagent and improving the dosing stability.

[0012] As a further embodiment of the present invention, the side wall of the adding tube is provided with an output port, the inner end of the supporting tube is fixedly installed with a pressure bladder, the upper end of the pressure bladder is fixedly connected with an auxiliary nozzle, and the output end of the auxiliary nozzle extends into the output port of the adding tube. The inner end of the passive cylinder is fixedly installed with a transmission sleeve, the transmission sleeve is sleeved on the outside of the pressure bladder, and the inner end of the transmission sleeve is fixedly installed with a plurality of pressure blocks along the circumferential direction. The plurality of pressure blocks are fixedly connected to the outer surface of the pressure bladder.

[0013] As a further embodiment of the present invention, a dredging screw is inserted through the inner end of the slag discharge pipe, and a dredging gear is rotatably installed at the upper end of the slag discharge pipe. The upper end of the dredging screw is fixedly connected to the dredging gear, so that when the dredging gear rotates, it can drive the dredging screw to rotate synchronously, thereby agitating and clearing the metal particle deposits in the slag discharge pipe. By setting a dredging screw in the slag discharge pipe and configuring a dredging gear fixedly connected to it at the upper end of the slag discharge pipe, the rotation of the dredging gear can drive the dredging screw to rotate synchronously, thereby continuously agitating and breaking up the metal particles deposited in the slag discharge pipe, avoiding the accumulation of deposits and blockage, improving the smoothness of the slag discharge process and the stability of the device operation, and enhancing the continuous discharge capacity of the wastewater treatment system.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This device drives the electromagnetic rod to rotate through the output toothed disc, so that the metal particles in the metal wastewater can adhere to the surface of the electromagnetic rod during the stirring and flow process, and be guided into the output pipe along the spiral hole. This realizes the simultaneous operation of the treatment process and the metal recovery process. Compared with the simple sedimentation and discharge method in the existing technology, this device can effectively improve the recovery efficiency of heavy metal particles and reduce the waste of metal resources. 2. When using this invention, the passive cylinder drives the pressure block to periodically squeeze the pressure bladder, causing the gas to be ejected through the auxiliary nozzle, which forms a blowing effect on the reagent in the addition tube. Even if the reagent is partially wetted, it can still be smoothly discharged, thereby improving the continuity and reliability of powder reagent addition. 3. This invention integrates multiple functional units such as stirring reaction, metal recovery, automatic dosing, and anti-clogging slag discharge into the decomposition cylinder. It has a compact structure and strong operational linkage. Compared with existing multi-equipment series treatment systems, this device can reduce the floor space and pipeline connection complexity, making it suitable for on-site treatment needs of metal refining wastewater. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a wastewater treatment device. Figure 2 This is a schematic diagram of the internal structure of the decomposition cylinder; Figure 3 This is a structural diagram of the isolation disc and support tube; Figure 4 This is a schematic diagram of the internal structure of the support tube; Figure 5 This is a disassembled diagram of the support tube. Figure 6 This is a schematic diagram of the structure, viewed from top view of the support tube. Figure 7 This is a schematic diagram of the internal structure of the output tube and the passive cylinder; Figure 8 A schematic diagram of the internal structure of the added tube; Figure 9 This is a schematic diagram of the internal structure of the passive cylinder; Figure 10 This is a schematic diagram of the internal structure of the slag discharge pipe; Figure 11 This is a schematic diagram showing the positional relationship between the triangular block and the connecting key.

[0016] In the diagram: 1. Decomposition cylinder; 2. Slag discharge pipe; 3. Liquid discharge valve; 4. Output gear disc; 5. Passive gear disc; 101. Isolation plate; 102. Support tube; 103. Stirring plate; 104. Center rod; 105. Guide tube; 106. Drive motor; 201. Passive gear; 202. Helical hole; 203. Adding tube; 204. Passive cylinder; 205. Output tube; 206. Electromagnetic rod; 207. Isolation plate; 208. Disturbance plate; 209. Pressure plate; 210. Transmission rod; 211. Extrusion block; 301. Auxiliary nozzle; 302. Pressure bladder; 303. Transmission sleeve; 304. One-way valve; 305. Force plate; 306. Jumping rod; 307. Auxiliary spring; 308. Isolation plug; 309. Stirring blade; 310. Pressure block; 311. Protrusion; 401. Crown gear; 402. Return spring; 403. Lower pressure plate; 404. Transmission screw; 501. Unblocking gear; 502. Unblocking screw; 503. Transmission gear; 504. Connecting key; 505. Output key; 506. Triangular block; 507. Force-bearing baffle; 508. Support spring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1-4 A wastewater treatment device for metal refining includes a decomposition cylinder 1. A drain valve 3 is fixedly connected to the bottom outlet of the decomposition cylinder 1 for controlling the discharge of treated wastewater after the reaction is completed. An isolation plate 101 is fixedly installed at the inner end of the decomposition cylinder 1, and multiple support pipes 102 are fixedly installed at the lower end of the isolation plate 101 in a ring arrangement. A central rod 104 is rotatably installed at the bottom end of the isolation plate 101. A drive motor 106 is fixedly installed at the upper end of the isolation plate 101 by bolts, and the output end of the drive motor 106 is fixedly connected to the central rod 104. A stirring plate 103 is fixedly installed on the outer surface of the central rod 104. The stirring plate 103 is used to fully stir and mix the metal wastewater and the reaction agent, accelerate the decomposition reaction and flocculation sedimentation process of heavy metal ions, and improve the wastewater treatment efficiency. An inlet is opened on the surface of the decomposition cylinder 1 for the inflow of metal wastewater. A guide pipe 105 is fixedly installed at the inner end of the support pipe 102, and a spiral hole 202 is opened on the surface of the guide pipe 105. The spiral hole 202 is used to guide and transport the settled metal particles and flocs. A collection device is provided between the guide pipe 105 and the support pipe 102. The collection device is used to centrally recover the metal substances or sludge precipitated during the metal wastewater treatment process. Multiple slag discharge pipes 2 are fixedly installed at the inner end of the decomposition cylinder 1. The multiple slag discharge pipes 2 are respectively set corresponding to the bottom end of each support pipe 102, so that the settled metal sludge can be discharged through the slag discharge pipes 2.

[0019] like Figures 3-5 As shown, a driven gear 201 is rotatably mounted on the inner end of the support tube 102, and an electromagnetic rod 206 is passed through the inner end of the guide tube 105. The upper end of the electromagnetic rod 206 is fixedly connected to the driven gear 201, so that when the driven gear 201 rotates, it can drive the electromagnetic rod 206 to rotate synchronously or reciprocate. An isolation plate 207 is fixedly mounted on the inner end of the support tube 102. The isolation plate 207 divides the interior of the support tube 102 into two independent chambers. The guide tube 105 is exposed on the outside of the support tube 102. Specifically, the electromagnetic rod 206 is an electromagnetic composite adsorption rod. By applying a microcurrent to the rod, its surface becomes charged (electrolysis principle). First, copper ions in the water are reduced to metallic copper and plated on the rod. Then, iron and nickel are captured by magnetic attraction. An output toothed disc 4 is fixedly installed on the surface of the central rod 104, and the output toothed disc 4 meshes with the driven gear 201. An output pipe 205 is fixedly installed on the inner end of the support tube 102, and the bottom end of the output pipe 205 corresponds to the upper end of the slag discharge pipe 2.

[0020] Example 2: Please refer to Figure 4 , Figures 6-8 A wastewater treatment device for metal refining, based on Embodiment 1, includes a passive cylinder 204, which is rotatably mounted on the upper end of an output pipe 205. A rectangular hole is provided on the side wall of the output pipe 205, and the rectangular hole is correspondingly connected to the end of the spiral hole 202 in the support pipe 102, so that the metal particles or flocculated impurities precipitated in the metal wastewater can enter the interior of the output pipe 205 through the rectangular hole. An agitator 306 is inserted inside the output tube 205. An isolation plug 308 is fixedly installed at the bottom end of the agitator 306. The surface of the isolation plug 308 is in close contact with the inner wall of the output tube 205. An agitator 309 is rotatably installed at the inner end of the output tube 205 and is located below the isolation plug 308. It is used to agitate and interfere with the deposited metal impurities in the output tube 205 to prevent blockage. Specifically, a force-receiving plate 305 is fixedly installed at the upper end of the jumping rod 306. The force-receiving plate 305 is connected to the output pipe 205 through an auxiliary spring 307. A protrusion 311 is fixedly installed at the bottom end of the passive cylinder 204. Multiple force-receiving blocks are fixedly installed circumferentially above the force-receiving plate 305. The protrusion 311 is positioned between any two adjacent force-receiving blocks. It is worth noting that the contact surfaces of the protrusion 311 and the force-receiving blocks are all designed with an arc-shaped transition structure. Thus, during the rotation of the passive cylinder 204, the protrusion 311 can periodically push the force-receiving blocks downward, thereby driving the force-receiving plate 305 and the jumping rod 306 to produce periodic reciprocating motion. More specifically, the agitator 309 and the output pipe 205 are elastically engaged by a torsion spring, enabling the agitator 309 to automatically reset. An auxiliary block (not shown in the figure) is fixedly installed at the bottom of the isolation plug 308. The auxiliary block abuts against the surface of the agitator 309. Therefore, when the isolation plug 308 reciprocates with the jumping rod 306, it can intermittently push the agitator 309 to rotate through the auxiliary block. When the agitator 309 loses its thrust, it returns to its initial position under the action of the torsion spring. This creates a continuous reciprocating disturbance process for the agitator 309, achieving dynamic interference and dispersed transport of metal impurities in the cavity of the output pipe 205, avoiding the accumulation of metal deposits in a single location, and reducing the risk of blockage.

[0021] like Figure 4 , Figure 8 As shown, an addition tube 203 is fixedly installed at the inner end of the support tube 102. The addition tube 203 is used to fill the reaction reagents required in the metal wastewater treatment process. The reaction reagents are powdered flocculants, neutralizers, or heavy metal precipitants, so as to fully react with the metal wastewater in the decomposition cylinder 1 and achieve the sedimentation and removal of heavy metal ions. The addition tube 203 is located above the passive cylinder 204. A removable sealing cap is provided above the addition tube 203, so that it is easy to open when replenishing reagents. The inside of the addition tube 203 is provided with a transmission screw 404. A lower pressure plate 403 is threaded on the surface of the transmission screw 404. The lower pressure plate 403 is used to apply downward pressure to the powdered reagent to achieve quantitative delivery and continuous addition of the reagent. The surface of the lower pressure plate 403 has a rectangular opening. A rectangular strip is fixedly installed on the inner wall of the addition tube 203. The rectangular opening is sleeved on the outside of the rectangular strip, thereby forming an anti-rotation guide restriction for the lower pressure plate 403 and preventing the rotation phenomenon when the transmission screw 404 drives the lower pressure plate 403 to move axially. The lower pressure plate 403 is connected to the addition tube 203 by a return spring 402. Under the elastic force of the return spring 402, the lower pressure plate 403 always tends to return upward, so that it can automatically rebound when the screw drive stops intermittently, avoiding the compaction and accumulation of powdered reagents. A crown gear 401 is fixedly installed at the upper end of the transmission screw 404. The crown gear 401 is located above the addition tube 203. A passive gear 5 is fixedly installed at the bottom end of the output gear disk 4, and the passive gear 5 meshes with the crown gear 401, so that the output gear disk 4 can drive the transmission screw 404 to rotate through gear transmission during the rotation process, realizing the synchronous addition and automatic dosing of reaction reagents.

[0022] like Figures 4-6 , Figure 9 As shown, a disturbance plate 208 is rotatably mounted on the surface of the support pipe 102. The support pipe 102 has an overall elliptical structure. During the flow of metal wastewater in the decomposition cylinder 1, the water flow forms local turbulence after passing through the support pipe 102, which drives the disturbance plate 208 to reciprocate. The surface of the support pipe 102 is provided with a movable hole, and a pressure plate 209 is slidably installed in the movable hole. A pressing block 211 is fixedly installed at one end of the disturbance plate 208 near the pressure plate 209. The pressing block 211 is set to abut against the pressure plate 209. Therefore, when the disturbance plate 208 reciprocates, the pressing block 211 can periodically push the pressure plate 209 to reciprocate, thereby forming a mechanical transmission action. Specifically, a transmission rod 210 is rotatably mounted on the end of the pressure plate 209 near the passive cylinder 204, and the end of the transmission rod 210 away from the pressure plate 209 is rotatably connected to the outer surface of the passive cylinder 204 (connection method as follows). Figure 6As shown in the figure, this allows the reciprocating motion of the pressure plate 209 to be transmitted to the passive cylinder 204, thus achieving linkage drive; An outlet is provided on the side wall of the adding tube 203. A pressure bladder 302 is fixedly installed at the inner end of the support tube 102. An auxiliary nozzle 301 is fixedly connected to the upper end of the pressure bladder 302, and the output end of the auxiliary nozzle 301 extends into the outlet of the adding tube 203 for exporting and blowing the reaction reagent into the decomposition cylinder 1. It is worth noting that the outer diameter of the auxiliary nozzle 301 is smaller than the inner diameter of the outlet to ensure that the powdered reaction reagent can fall and be discharged smoothly and avoid blockage. A one-way valve 304 is fixedly installed at the bottom end of the pressure bladder 302. The one-way valve 304 is used to ensure that the gas in the pressure bladder 302 can only be exported to the auxiliary nozzle 301 in one direction to prevent wastewater or moisture from flowing back into the pressure bladder 302. A transmission sleeve 303 is fixedly installed at the inner end of the passive cylinder 204. The transmission sleeve 303 is sleeved on the outside of the pressure bladder 302. Multiple pressure blocks 310 are fixedly installed circumferentially at the inner end of the transmission sleeve 303. The multiple pressure blocks 310 are fixedly connected to the outer surface of the pressure bladder 302. Therefore, during the rotation of the passive cylinder 204, the pressure blocks 310 can periodically squeeze the pressure bladder 302 to cause it to undergo elastic deformation, thereby squeezing out the gas inside the pressure bladder 302 and spraying it out through the auxiliary nozzle 301 to form an airflow blowing effect. Even if the powder reagent in the lower part of the addition tube 203 is wetted or adhered due to moisture, it can still be smoothly discharged under the pushing action of the lower pressure plate 403 and the airflow blowing action of the auxiliary nozzle 301, realizing the continuous addition of reagents.

[0023] like Figure 2 , Figure 10 , Figure 11 As shown, a dredging screw 502 is inserted through the inner end of the slag discharge pipe 2, and a dredging gear 501 is rotatably installed on the upper end of the slag discharge pipe 2. The upper end of the dredging screw 502 is fixedly connected to the dredging gear 501, so that when the dredging gear 501 rotates, it can drive the dredging screw 502 to rotate synchronously, which is used to stir and dredge the metal particle deposits in the slag discharge pipe 2. An output key 505 is fixedly installed at the bottom end of the electromagnetic rod 206. A transmission gear 503 is rotatably installed at the bottom end of the support tube 102, and the transmission gear 503 is connected to the unblocking gear 501. A connecting key 504 is slidably installed at the upper end of the transmission gear 503, and the connecting key 504 is located inside the support tube 102. A force-bearing baffle 507 is slidably installed at the bottom end of the support tube 102. A triangular block 506 is fixedly installed at the end of the force-bearing baffle 507 near the connecting key 504, and the inclined surface of the triangular block 506 abuts against the lower end of the connecting key 504. The force-bearing baffle 507 and the support tube 102 are elastically connected by a support spring 508, so that the force-bearing baffle 507 has a reset capability. When metal particles accumulate and block the area below the output pipe 205 or inside the slag discharge pipe 2, causing the sludge to be unable to continue flowing, the accumulation pressure will push the force-baffle 507 upward, thereby causing the triangular block 506 to push the connecting key 504 upward along the axial direction and engage with the output key 505. The rotation of the electromagnetic rod 206 is transmitted to the unblocking gear 501 through the output key 505, the connecting key 504 and the transmission gear 503, which in turn drives the unblocking screw 502 to rotate, disturbing, crushing and conveying the metal particles in the blocked area, thereby achieving automatic unblocking of the area above the slag discharge pipe 2.

[0024] The working principle of this invention is: When in use, the output end of the drive motor 106 drives the center rod 104 to rotate. While the center rod 104 rotates, it drives the output gear 4 to rotate synchronously. Since the output gear 4 meshes with the driven gear 201, the driven gear 201 is subjected to force and rotates, which further drives the electromagnetic rod 206 to rotate. During this process, the metal wastewater in the decomposition cylinder 1 is circulated under the stirring action of the stirring plate 103, so that the metal particles in the wastewater gradually adhere to the surface of the electromagnetic rod 206. The adhered metal material moves gradually along the spiral hole 202 under the rotational guidance action, and enters the interior of the output pipe 205 through the rectangular hole on the surface of the output pipe 205, thereby realizing the guiding collection and recovery of metal particles, and finally being discharged from the slag discharge pipe 2. Meanwhile, since the support pipe 102 has an elliptical structure, the wastewater generates local turbulence after flowing through the support pipe 102, which in turn drives the disturbance plate 208 to swing back and forth. During the swinging process of the disturbance plate 208, the extrusion block 211 periodically pushes the pressure plate 209 to move back and forth. The force of the pressure plate 209 is transmitted to the passive cylinder 204 through the transmission rod 210, causing the passive cylinder 204 to rotate back and forth. Therefore, during the rotation of the passive cylinder 204, the pressure block 310 periodically squeezes the pressure bladder 302, causing the gas inside the pressure bladder 302 to be ejected through the auxiliary nozzle 301, thereby forming an airflow blowing effect on the powdered reaction reagent in the addition tube 203, preventing the reagent from getting damp and sticking, and promoting its smooth discharge. At the same time, the passive gear disk 5 drives the crown gear 401 to rotate. The crown gear 401 drives the lower pressure plate 403 to move downward along the axis through the transmission screw 404, so that the reaction reagent in the addition tube 203 is continuously pushed downward, realizing the automatic addition and continuous replenishment of the reaction reagent. If a blockage occurs above the slag discharge pipe 2, the accumulated pressure will push the force-baffle 507 to move, which in turn will drive the triangular block 506 to move. As the triangular block 506 moves, its inclined surface will push the connecting key 504 to move upward and eventually connect with the output key 505. During the rotation of the electromagnetic rod 206, the transmission gear 503 will rotate. Subsequently, when the unblocking gear 501 rotates, it can drive the unblocking screw 502 to rotate synchronously, which is used to stir and unblock the metal particle deposits in the slag discharge pipe 2.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wastewater treatment device for metal refining, comprising a decomposition cylinder (1), characterized in that: A drain valve (3) is fixedly connected to the bottom outlet of the decomposition cylinder (1). An isolation plate (101) is fixedly installed at the inner end of the decomposition cylinder (1), and multiple support pipes (102) are fixedly installed at the lower end of the isolation plate (101). The support pipes (102) are arranged in a ring. A central rod (104) is rotatably installed at the bottom end of the isolation plate (101), and the output end of the drive motor (106) is fixedly connected to the central rod (104). A stirring plate (103) is fixedly installed on the outer surface of the central rod (104). The support pipes A guide tube (105) is fixedly installed at the inner end of (102), and a spiral hole (202) is opened on the surface of the guide tube (105). The spiral hole (202) is used to guide and transport the settled metal particles and flocs. A collection device is provided between the guide tube (105) and the support tube (102). Multiple slag discharge pipes (2) are fixedly installed at the inner end of the decomposition cylinder (1). The multiple slag discharge pipes (2) are respectively set to correspond to the bottom end of each support tube (102), so that the settled metal slag can be discharged through the slag discharge pipes (2).

2. The wastewater treatment device for metal refining according to claim 1, characterized in that: A passive gear (201) is rotatably installed at the inner end of the support tube (102), an electromagnetic rod (206) is passed through the inner end of the guide tube (105), and the upper end of the electromagnetic rod (206) is fixedly connected to the passive gear (201). An isolation plate (207) is fixedly installed at the inner end of the support tube (102).

3. The wastewater treatment device for metal refining according to claim 2, characterized in that: The isolation plate (207) divides the interior of the support tube (102) into two independent chambers. The guide tube (105) is exposed on the outside of the support tube (102). The output tube (205) is fixedly installed at the inner end of the support tube (102). The bottom end of the output tube (205) corresponds to the upper end of the slag discharge tube (2).

4. The wastewater treatment device for metal refining according to claim 3, characterized in that: The collection device includes a passive cylinder (204), which is rotatably mounted on the upper end of the output pipe (205). The side wall of the output pipe (205) has a rectangular hole, which is connected to the end of the spiral hole (202) in the support pipe (102), so that the metal particles precipitated in the metal wastewater can enter the interior of the output pipe (205) through the rectangular hole.

5. A wastewater treatment device for metal refining according to claim 4, characterized in that: A jumping rod (306) is inserted inside the output pipe (205). An isolation plug (308) is fixedly installed at the bottom end of the jumping rod (306). An agitator (309) is rotatably installed at the inner end of the output pipe (205), and the agitator (309) is located below the isolation plug (308). A force-receiving plate (305) is fixedly installed at the upper end of the jumping rod (306). The force-receiving plate (305) is connected to the output pipe (205) by an auxiliary spring (307). A protrusion (311) is fixedly installed at the bottom end of the passive cylinder (204). Multiple force-receiving blocks are fixedly installed circumferentially above the force-receiving plate (305). The protrusion (311) is located between any two adjacent force-receiving blocks.

6. A wastewater treatment device for metal refining according to claim 2, characterized in that: An addition tube (203) is fixedly installed at the inner end of the support tube (102). The addition tube (203) is used to fill the reaction reagents required in the metal wastewater treatment process. The addition tube (203) is located above the passive cylinder (204). A transmission screw (404) is provided inside the addition tube (203). A lower pressure plate (403) is threaded on the surface of the transmission screw (404). The lower pressure plate (403) is used to apply downward pressure to the powdered reagent.

7. A wastewater treatment device for metal refining according to claim 6, characterized in that: The lower pressure plate (403) and the adding tube (203) are connected by a return spring (402). A disturbance plate (208) is rotatably installed on the surface of the support tube (102). A movable hole is opened on the surface of the support tube (102), and a pressure plate (209) is slidably installed in the movable hole. A pressing block (211) is fixedly installed on one end of the disturbance plate (208) near the pressure plate (209). The pressing block (211) is abutted against the pressure plate (209).

8. A wastewater treatment device for metal refining according to claim 7, characterized in that: The side wall of the adding tube (203) has an output port. The inner end of the support tube (102) is fixedly installed with a pressure bladder (302). The upper end of the pressure bladder (302) is fixedly connected with an auxiliary nozzle (301), and the output end of the auxiliary nozzle (301) extends into the output port of the adding tube (203). The inner end of the passive cylinder (204) is fixedly installed with a transmission sleeve (303). The transmission sleeve (303) is sleeved on the outside of the pressure bladder (302). The inner end of the transmission sleeve (303) is fixedly installed with multiple pressure blocks (310) along the circumferential direction. The multiple pressure blocks (310) are fixedly connected to the outer surface of the pressure bladder (302).

9. A wastewater treatment device for metal refining according to claim 1, characterized in that: The inner end of the slag discharge pipe (2) is provided with a dredging screw (502), and the upper end of the slag discharge pipe (2) is rotatably installed with a dredging gear (501). The upper end of the dredging screw (502) is fixedly connected to the dredging gear (501), so that when the dredging gear (501) rotates, it can drive the dredging screw (502) to rotate synchronously, which is used to stir and dredge the metal particle deposits in the slag discharge pipe (2).

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