Novel precious metal extraction and recovery device

By setting up the structure of filter element and extrusion block in the precious metal extraction and recovery device, the problems of filter element clogging and waste liquid pollution are solved, efficient filtration and environmentally friendly treatment are achieved, and the effect of precious metal recovery is improved.

CN223474490UActive Publication Date: 2025-10-28SHANGHAI LUOSHAN RENEWABLE RESOURCES CO LTD
View PDF 0 Cites 1 Cited by

Patent Information

Application Number
CN202423027303.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-10-28
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

In the prior art, when filtering electroplating liquid, the filter element is easily clogged, which affects the filtering effect, and harmful substances still remain in the waste liquid after filtering, which easily pollutes the environment.

Method used

A precious metal extraction and recovery device is designed. A filter element and an extrusion block are set in the filter box. A motor drives a forward and reverse threaded rod to squeeze the filter element to remove clogging impurities, and a stirring blade is used to mix chemicals to treat the waste liquid.

Benefits of technology

Effectively prevent filter element clogging, improve filtration efficiency, reduce the emission of harmful substances in waste liquid, and protect the environment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223474490U_ABST
    Figure CN223474490U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel precious metal extracting and recycling device which comprises a sewage tank, a filter tank, a silo and a slider, electroplating liquid enters the filter tank and passes through a filter element, and when impurities in the electroplating liquid block the filter element, a motor is started to drive a positive and negative thread rod to rotate, so that the filter element is blocked; the lead screw structure is used for pushing the two extrusion blocks to get close to each other and extrude the filter element, waste liquid in the filter element is extruded out, the waste liquid drives impurities to be extruded out, after the two extrusion blocks reset, electroplating liquid continues to pass through the filter element and is filtered, residual precious metal in the electroplating liquid is screened out on the surface of the filter element, and the situation that follow-up filtering work is affected due to blockage of the filter element can be prevented.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of precious metal recycling technology, specifically a novel precious metal extraction and recycling device. Background Technology

[0002] As the electronics industry becomes increasingly developed, electronic products are used more and more in people's lives. Circuit boards and connectors are used in various electronic products. As a result, in order to ensure conductivity and anti-oxidation properties, gold plating is usually used at the connection points of various circuit boards and connectors. This requires electroplating during the processing of circuit boards and connectors. The waste electroplating solution produced by electroplating will contain more or less some precious metals.

[0003] In existing technologies, filter sponges and other filter elements are mostly used to filter waste electroplating solutions, and the residual precious metals in the electroplating solution are filtered onto the surface of the filter element for recovery and collection. However, this recovery method has the following problems: 1. When the electroplating solution continues to pass through the filter element, impurities inside the electroplating solution can easily cause the filter element to become clogged, affecting the filtration effect of subsequent electroplating solutions; 2. Harmful substances still remain in the filtered waste liquid. If these harmful substances are discharged directly, they can easily cause pollution to the surrounding environment. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or the existing novel precious metal extraction and recycling device, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a novel precious metal extraction and recovery device. This device involves installing a filter box on top of a wastewater tank, with a silo on top of the filter box. The electroplating solution is stored inside the silo. A support frame is installed on the side wall of the wastewater tank, and a mounting frame is installed on the side wall of the support frame. A motor and a threaded rod are installed inside the mounting frame. A filter element is installed inside the filter box, and two squeezing blocks are installed on both sides of the filter element. Both squeezing blocks are connected to the threaded rod. When filtering the electroplating solution, the solution enters the filter box and passes through the filter element. When impurities in the electroplating solution clog the filter element, the motor is started, driving the threaded rod to rotate. The screw structure pushes the two squeezing blocks closer together and squeezes the filter element, expelling waste liquid from inside the filter element. The waste liquid also carries impurities out. After the two squeezing blocks return to their original positions, the electroplating solution continues to pass through the filter element and be filtered. The precious metals remaining in the electroplating solution are screened out onto the surface of the filter element, preventing subsequent filtration work from being affected by filter element clogging.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A novel precious metal extraction and recovery device, comprising:

[0009] A sewage tank, wherein a fixing frame is installed on the outer wall of the sewage tank, an mounting frame is installed on the side wall of the fixing frame, a motor is installed on the side wall of the mounting frame, and the output end of the motor extends into the interior of the mounting frame and is fitted with a positive and negative threaded rod;

[0010] A filter box is installed on top of the sewage tank. The filter box has a first slot on its symmetrical side wall and a second slot on its side wall. A sponge filter element is provided inside the filter box at a position corresponding to the first slot and the second slot.

[0011] A silo is installed on top of the fixed frame, and a solenoid valve is installed at the bottom of the silo. The solenoid valve is connected to the filter box.

[0012] The slider consists of two sliders symmetrically located on both sides of the filter box. Each slider has a pressing block installed on its sidewall. The pressing block passes through the first slot and extends into the filter box. The slider sidewall has a threaded hole, through which a positive and negative threaded rod rotates.

[0013] In a preferred embodiment of the novel precious metal extraction and recycling device of this utility model, a cover plate is hinged inside the second slot, and a sealing ring is provided on the outer wall of the cover plate.

[0014] In a preferred embodiment of the novel precious metal extraction and recycling device of this utility model, a second guide groove is provided on the inner wall of the filter box, and a second guide plate is installed on the side wall of the extrusion block, with the second guide plate located inside the second guide groove.

[0015] In a preferred embodiment of the novel precious metal extraction and recovery device described in this utility model, a guide groove is provided on the side wall of the sewage tank, and an inlet and a drain pipe are installed on the side wall of the sewage tank.

[0016] As a preferred embodiment of the novel precious metal extraction and recovery device of this utility model, it further includes a gear, which is rotatably connected to the side wall of the sewage tank. A rotating rod is installed on the side wall of the gear, which extends into the interior of the sewage tank. A stirring blade is installed on the body of the rotating rod.

[0017] In a preferred embodiment of the novel precious metal extraction and recycling device of this utility model, a connecting plate is hinged to the side wall of the slider, a rack is hinged to the other end of the connecting plate, a guide plate is installed on the side wall of the rack, and the guide plate is slidably connected inside the guide groove.

[0018] Compared with existing technologies, this solution involves installing a filter box at the top of the wastewater tank. The filter box has a silo at its top, where the electroplating solution is stored. A support frame is installed on the side wall of the wastewater tank, and a mounting frame is installed on the side wall of the support frame. The mounting frame houses a motor and a threaded rod. The filter box contains a filter element, with two pressing blocks on either side of the filter element. Both pressing blocks are connected to the threaded rod. During filtration of the electroplating solution, the solution enters the filter box and passes through the filter element. When impurities in the electroplating solution clog the filter element, the motor is activated, driving the threaded rod to rotate. This screw mechanism pushes the two pressing blocks closer together, squeezing the filter element and expelling waste liquid. The waste liquid also carries impurities out. After the two pressing blocks return to their original positions, the electroplating solution continues to pass through the filter element and be filtered. Residual precious metals in the electroplating solution are screened onto the surface of the filter element, preventing filter clogging from affecting subsequent filtration processes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is an overall structural diagram of a novel precious metal extraction and recovery device according to this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of a novel precious metal extraction and recovery device according to this utility model;

[0022] Figure 3 This is a structural diagram of a slider in a novel precious metal extraction and recovery device according to this utility model. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0026] This invention provides a novel precious metal extraction and recovery device. A filter box is installed at the top of a wastewater tank, with a silo at the top of the filter box. The electroplating solution is stored inside the silo. A support frame is installed on the side wall of the wastewater tank, and a mounting frame is installed on the side wall of the support frame. A motor and a threaded rod are installed inside the mounting frame. A filter element is installed inside the filter box, and two squeezing blocks are installed on both sides of the filter element. Both squeezing blocks are connected to the threaded rod. When filtering the electroplating solution, the solution enters the filter box and passes through the filter element. When impurities in the electroplating solution clog the filter element, the motor is started, driving the threaded rod to rotate. The screw structure pushes the two squeezing blocks closer together and squeezes the filter element, expelling waste liquid from inside the filter element. The waste liquid also carries impurities out. After the two squeezing blocks return to their original positions, the electroplating solution continues to pass through the filter element and be filtered. Residual precious metals in the electroplating solution are screened onto the surface of the filter element, preventing filter clogging from affecting subsequent filtration operations.

[0027] Example 1

[0028] Addressing the prominent problem 1 in the background technology: when the electroplating solution continuously passes through the filter element, impurities inside the electroplating solution can easily cause clogging of the filter element, affecting the subsequent filtration effect of the electroplating solution. This application proposes a novel precious metal extraction and recovery device, including a wastewater tank 100, a filter box 200, a silo 300, and a slider 400.

[0029] A fixing frame 110 is installed on the outer wall of the sewage tank 100. A mounting frame 120 is installed on the side wall of the fixing frame 110. A motor 130 is installed on the side wall of the mounting frame 120. The output end of the motor 130 extends into the mounting frame 120 and is equipped with a threaded rod 140. The fixing frame 110 is used to fix the silo 300. The top of the fixing frame 110 has a fixing ring. The silo 300 is clamped inside the fixing ring. A rubber pad is provided on the inner wall of the fixing ring to increase the friction between the silo 300 and the fixing ring.

[0030] The filter box 200 is installed on top of the sewage tank 100. The filter box 200 has a first slot 210 on its symmetrical side wall and a second slot 220 on its side wall. A sponge filter element 230 is installed inside the filter box 200 at a position corresponding to the first slot 210 and the second slot 220. A cover plate 240 is hinged inside the second slot 220. A sealing ring is provided on the outer wall of the cover plate 240. The cover plate 240 is used to seal the opening of the second slot 220. A buckle structure is provided on the outer wall of the cover plate 240 to connect with the second slot 220. When it is necessary to remove the sponge filter element 230, pull the buckle to separate it from the second slot 220, flip the cover plate 240 to open it, and pull the sponge filter element 230 out of the second slot 220. The precious metal residue on the surface of the sponge filter element 230 can then be collected.

[0031] The silo 300 is installed on top of the fixed frame 110, and a solenoid valve 310 is installed at the bottom of the silo 300. The solenoid valve 310 is connected to the filter box 200. The electroplating solution is poured into the silo 300. The flow rate of the electroplating solution entering the filter box 200 each time is controlled by activating the solenoid valve 310.

[0032] Two sliders 400 are symmetrically located on both sides of the filter box 200. An extrusion block 410 is installed on the side wall of each slider 400, penetrating the first slot 210 and extending into the filter box 200. A threaded hole 420 is provided on the side wall of each slider 400, through which a threaded rod 140 rotates. A second guide groove 250 is provided on the inner wall of the filter box 200. A second guide plate 430 is installed on the side wall of the extrusion block 410, located inside the second guide groove 250. When the electroplating solution passes through the sponge filter element 230, the sponge filter element 230 filters the electroplating solution, depositing the precious metals in the solution onto the surface of the sponge filter element 230. When impurities inside the plating solution cause blockage of the sponge filter element 230, the start motor 130 drives the threaded rod 140 to rotate. When the threaded rod 140 rotates, the screw structure pushes the two sliders 400 closer together. The sliders 400 drive the two extrusion blocks 410 closer together and squeeze the sponge filter element 230 located between the two extrusion blocks 410, squeezing out the waste liquid and impurities inside the sponge filter element 230. After the extrusion is completed, the start motor 130 drives the threaded rod 140 to reverse, pushing the two extrusion blocks 410 to reset. The extrusion blocks 410 seal the first slot 210, thus preventing the subsequent filtration work from being affected by the blockage of the sponge filter element 230.

[0033] Example 2

[0034] Addressing the prominent problem 2 in the background technology: harmful substances still remain in the filtered waste liquid, and direct discharge of these harmful substances can easily cause pollution to the surrounding environment. This application provides a novel precious metal extraction and recovery device, which also includes a gear 500.

[0035] The wastewater tank 100 has a guide groove 150 on its side wall. An inlet 160 and a drain pipe 170 are installed on the side wall of the wastewater tank 100. A gear 500 is rotatably connected to the side wall of the wastewater tank 100. A rotating rod 510 is installed on the side wall of the gear 500, extending into the wastewater tank 100. A stirring blade 520 is installed on the rod body of the rotating rod 510. A connecting plate 440 is hinged to the side wall of the slider 400. A rack 450 is hinged to the other end of the connecting plate 440. A guide plate 460 is installed on the side wall of the rack 450 and slidably connected inside the guide groove 150. When the two sliders 400 approach each other, the sliders 400 drive the connecting plate 440 to press the rack 450 downwards. The guide plate 460 slides inside the guide groove 150. When the rack 450 moves downwards, it drives the gear 500 and the rotating rod 510 to rotate clockwise, which in turn drives the stirring blade 520 to rotate clockwise. When the two sliders 400 move away from each other, the sliders 400 drive the connecting plate 440 to pull the rack 450 upward. The guide plate 460 slides inside the guide groove 150. When the rack 450 moves upward, it drives the gear 500 and the rotating rod 510 to reverse, which in turn drives the stirring blade 520 to reverse. After the waste liquid enters the sewage tank 100 through the sponge filter element 230, chemical agents are injected from the injection port 160 to treat the waste liquid inside the sewage tank 100. At the same time, when the two sliders 400 move closer or further away from each other, they drive the rack 450 to move up and down. When the rack 450 moves, it drives the gear 500 and the stirring blade 520 to rotate, which fully mixes the chemical agents and waste liquid inside the sewage tank 100. After the waste liquid is treated, it is discharged from the drain pipe 170, which can prevent the harmful substances in the waste liquid from causing pollution to the surrounding environment after the waste liquid is directly discharged.

[0036] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A novel precious metal extraction and recovery device, characterized in that, include: A sewage tank (100) is provided with a fixing frame (110) installed on its outer wall. A mounting frame (120) is installed on the side wall of the fixing frame (110). A motor (130) is installed on the side wall of the mounting frame (120). The output end of the motor (130) extends into the mounting frame (120) and is fitted with a threaded rod (140). A filter box (200) is installed on top of the sewage tank (100). The filter box (200) has a first slot (210) on its symmetrical side wall and a second slot (220) on its side wall. A sponge filter element (230) is provided inside the filter box (200) at a position corresponding to the first slot (210) and the second slot (220). A silo (300) is installed on top of the fixed frame (110), and a solenoid valve (310) is installed at the bottom of the silo (300). The solenoid valve (310) is connected to the filter box (200). Two sliders (400) are symmetrically located on both sides of the filter box (200). An extrusion block (410) is installed on the side wall of the slider (400). The extrusion block (410) passes through the first slot (210) and extends into the filter box (200). A threaded hole (420) is opened on the side wall of the slider (400). The positive and negative threaded rod (140) rotates through the threaded hole (420).

2. The novel precious metal extraction and recovery device according to claim 1, characterized in that, The second slot (220) is hinged to a cover plate (240), and a sealing ring is provided on the outer wall of the cover plate (240).

3. The novel precious metal extraction and recovery device according to claim 2, characterized in that, The filter box (200) has a second guide groove (250) on its inner wall, and the extrusion block (410) has a second guide plate (430) installed on its side wall. The second guide plate (430) is located inside the second guide groove (250).

4. A novel precious metal extraction and recovery device according to claim 3, characterized in that, The sewage tank (100) has a guide groove (150) on its side wall, and an inlet (160) and a drain pipe (170) are installed on the side wall of the sewage tank (100).

5. A novel precious metal extraction and recovery device according to claim 4, characterized in that, It also includes a gear (500) rotatably connected to the side wall of the sewage tank (100), a rotating rod (510) is installed on the side wall of the gear (500), the rotating rod (510) extends into the sewage tank (100), and a stirring blade (520) is installed on the rod body of the rotating rod (510).

6. A novel precious metal extraction and recovery device according to claim 5, characterized in that, The slider (400) has a connecting plate (440) hinged to its side wall, and a rack (450) is hinged to the other end of the connecting plate (440). A guide plate (460) is installed on the side wall of the rack (450), and the guide plate (460) is slidably connected inside the guide groove (150).

Citation Information

Cited By

  • Smoke exhaust oil mist separation system and smoke exhaust oil mist separation method

    CN121534474A