Gold ion resin adsorption recovery device
By employing a multi-stage series adsorption structure and a real-time monitoring system, the problems of low adsorption efficiency and easy resin clogging in traditional gold ion recovery devices have been solved, achieving efficient gold ion recovery and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHANGJIE ELECTRONICS CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional gold ion recovery devices suffer from low adsorption efficiency, easy resin clogging, high operating costs, and a lack of real-time parameter monitoring, which leads to the risk of resin damage.
It adopts a multi-stage series adsorption structure, a precision filtration unit and key parameter monitoring components to form a collaborative hardware system, which realizes efficient interception of suspended particles and deep adsorption of gold ions, and performs real-time operating condition monitoring through a direct connection architecture of flow and pressure sensors and control unit.
It significantly improves the gold ion recovery rate, reduces operating costs, extends the resin replacement cycle, and avoids resin clogging and gold ion escape.
Smart Images
Figure CN224350429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precious metal recycling technology, and in particular to a gold ion resin adsorption and recycling device. Background Technology
[0002] In industries such as electroplating and metallurgy, the recovery of gold ions from gold-containing waste liquids is crucial for resource reuse. Currently, ion exchange resin adsorption is commonly used to treat low-concentration gold-containing waste liquids. However, traditional devices suffer from three major drawbacks: low adsorption efficiency, easy resin clogging, and high operating costs, resulting in the loss of significant gold resources.
[0003] Analysis of existing technology deficiencies: Most devices only use a single-stage adsorption tower, with waste liquid being directly discharged after passing through the resin, preventing the deep adsorption of residual gold ions; traditional pretreatment only uses simple filters, which cannot effectively intercept metal debris and colloidal particles, leading to resin pore blockage and requiring frequent resin replacement; adsorption process parameters cannot be obtained in real time, and the system always operates at a constant flow rate; the lack of high-range pressure monitoring components means that when resin blockage causes an abnormal increase in gauge pressure, equipment protection cannot be triggered, posing a risk of resin damage. These shortcomings in hardware design result in traditional devices facing problems such as frequent resin replacement, high gold ion escape rates, and high operating and maintenance costs.
[0004] To address the aforementioned shortcomings, this invention proposes a gold ion resin adsorption and recovery device to solve the problems described above. Utility Model Content
[0005] The purpose of this invention is to provide a gold ion resin adsorption and recovery device. This device significantly improves the gold ion recovery rate and reduces operating costs through a hardware layout that includes a multi-stage series adsorption structure, a precision filtration unit, and key parameter monitoring components.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a gold ion resin adsorption and recovery device, characterized in that it includes a collection tank for gold-containing waste liquid, a pretreatment unit, an adsorption tower system, and a control unit; the inlet of the pretreatment unit is connected to the collection tank for filtering suspended particles in the gold-containing waste liquid; the inlet of the adsorption tower system is connected to the outlet of the pretreatment unit, and the adsorption tower system consists of two resin tanks connected in series for selectively adsorbing gold ions; the outlet of the adsorption tower system is connected to a waste liquid discharge port; the control unit consists of a flow sensor, a pressure sensor, and a booster pump that drives the waste liquid from the collection tank to the adsorption tower system; the flow sensor, pressure sensor, and booster pump are all signal-connected to the control unit.
[0007] By adopting the above technical solution, the multi-stage series adsorption structure and the high-precision filtration unit form a collaborative hardware system, which achieves efficient interception of suspended particles and deep adsorption of gold ions within the optimized flow rate range. At the same time, the direct connection architecture of the sensor and control unit builds real-time operating condition monitoring capabilities, which completely solves the core defects of traditional devices such as resin clogging, gold ion escape and frequent maintenance from the physical structure level.
[0008] The pretreatment unit is further configured to include a cylindrical stainless steel housing and a precision filter disposed within the housing. The precision filter is a polypropylene pleated filter element, which is fixed to the stainless steel housing by a snap-on end cap.
[0009] By adopting the above technical solutions, the stainless steel shell provides strong corrosion resistance and is suitable for acidic / alkaline conditions of gold-containing waste liquid; the honeycomb structure of the polypropylene pleated filter element increases the filtration area and can maintain high flow rate; the snap-on end cap enables quick unlocking and tight sealing of the filter element, and no tools are needed to remove the bolts during maintenance, shortening the time for each replacement.
[0010] The adsorption tower system is further configured such that the ion exchange resin used is a strongly basic anion exchange resin.
[0011] By adopting the above technical solution, its inherent quaternary ammonium groups achieve specific capture of gold ion complexes through electrostatic attraction, the nanoscale channels formed by the highly cross-linked framework provide a physical sieving barrier, and the wide pH tolerance enables the material to adapt to complex waste liquid conditions, ensuring the efficient and selective adsorption of gold ions from the source.
[0012] The system is further configured such that: the adsorption tower system includes resin tank one and resin tank two arranged in series; the outlet of the pretreatment unit is connected to the inlet of resin tank one, the outlet of resin tank one is connected to the inlet of resin tank two, and the outlet of resin tank two is connected to the waste liquid discharge port.
[0013] By adopting the above technical solution and through the physical layout of two-stage series resin tanks, the waste liquid flows through resin tank one to complete primary adsorption and resin tank two to achieve deep interception, forming a spatially progressive adsorption barrier. This completely blocks the escape path of residual gold ions from the perspective of structural redundancy, while diverting the resin saturation load to extend the overall replacement cycle.
[0014] The flow sensor and pressure sensor are further configured to be fixedly mounted on the resin tank.
[0015] By adopting the above technical solution, the working conditions of the resin bed inlet can be directly monitored at the top installation position to obtain raw data on flow rate and pressure.
[0016] The system is further configured to include an online gold ion concentration detector, which is installed on the pipeline between the outlet of the pretreatment unit and the inlet of the adsorption tower system and is signal-connected to the control unit.
[0017] By adopting the above technical solution, an online gold ion concentration detector is physically integrated into the pipeline between the pretreatment unit outlet and the adsorption tower inlet, and a signal connection is established with the control unit. This constructs the first line of defense for concentration monitoring before the waste liquid enters the adsorption system, providing the device with real-time sensing capability of pre-emptive gold ion load, and laying the physical foundation for visualizing the operating conditions from the hardware architecture.
[0018] The control unit is further configured to receive the pressure signal from the pressure sensor, and the upper limit of the pressure sensor's range exceeds 0.6 MPa.
[0019] By adopting the above technical solution, the 0.6MPa range covers the safe pressure threshold of the resin tank, providing a hardware foundation for system overpressure protection.
[0020] The further configuration is as follows: the booster pump is a centrifugal booster pump, installed on the pipeline between the collection tank and the pretreatment unit.
[0021] By adopting the above technical solution, the centrifugal pump structure is adapted to the conveying conditions of waste liquid containing particles, preventing flow channel blockage. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0023] In the diagram: 1. Collection tank; 111. Flow sensor; 112. Pressure sensor; 3. Pretreatment unit; 5. Control unit; 51. Booster pump; 31. Precision filter; 32. End cap; 4. Adsorption tower system; 41. Resin tank one; 42. Resin tank two; 43. Waste liquid discharge port; 8. Online gold ion concentration detector; 9. T-fitting. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] refer to Figure 1A gold ion resin adsorption and recovery device includes a gold-containing waste liquid collection tank 1, a pretreatment unit 3, an adsorption tower system 4, a control unit 5, and an online gold ion concentration detector 8. The control unit 5 consists of a flow sensor 111, a pressure sensor 112, and a booster pump 51 that drives the waste liquid from the collection tank 1 to the adsorption tower system 4. The collection tank 1 is a cubic open container with an outlet at the bottom; the outlet on the right side of the collection tank 1 is connected to the inlet on the left side of the booster pump 51 via a pipe; the inlet of the adsorption tower system 4 is connected to the outlet on the right side of the pretreatment unit 3 via a rigid PVC pipe; the adsorption tower system 4 has a discharge port 43 on the right side; the electrical cabinet of the control unit 5 is wall-mounted on the side of the adsorption tower system 4, and its signal lines are connected to the flow sensor 111, the pressure sensor 112, and the booster pump 51, respectively; the inlet of the pretreatment unit 3 is connected to the outlet of the booster pump 51 via a flange.
[0026] The pretreatment unit 3 includes a precision filter 31, an end cap 32, and a housing. The housing of the pretreatment unit 3 is made of stainless steel, which provides strong corrosion resistance and is suitable for acidic / alkaline conditions of gold-containing waste liquid. Flanges are welded at both ends. The precision filter 31 adopts a polypropylene pleated filter element (5μm pore size). The structure of the polypropylene pleated filter element significantly increases the filtration area and maintains high flow rate. It is pressed and fixed to the cylinder by the top snap-on end cap 32. An annular sealing ring is provided between the end cap 32 and the stainless steel cylinder to achieve quick-release sealing.
[0027] The adsorption tower system 4 is filled with a strongly basic anion exchange resin. The adsorption tower system 4 includes resin tank 1 (41) and resin tank 2 (42) arranged in series. Both resin tank 1 (41) and resin tank 2 (42) are vertical cylindrical tanks connected in series via pipes: the outlet pipe of the pretreatment unit 3 is horizontally connected to the left inlet of resin tank 1 (41); the right outlet of resin tank 2 (42) is connected to the waste liquid discharge port 43. A flow sensor 111 (vortex type) and a pressure sensor 112 (piezoresistive type) are fixed to the top inlet pipe of resin tank 1 (41) via threaded interfaces, with their axes coinciding with the center line of the pipe. A gold ion concentration online detector 8 (electrochemical probe type) is installed in the middle of the straight pipe section from the outlet of the pretreatment unit 3 to the inlet of resin tank 1 (41) via a T-fitting 9. The probe is inserted to a depth of 1 / 2 of the pipe diameter, and its signal line is connected to the control unit 5 through the pipe. The pressure sensor 112 has a range of 0-1.0MPa, exceeding the safety threshold of 0.6MPa; the booster pump 51 is a centrifugal type, horizontally installed on the foundation between the collection tank 1 and the pretreatment unit 3, and rubber shock-absorbing pads are installed on the pump inlet and outlet pipes.
[0028] Workflow: Gold-containing waste liquid is transported from collection tank 1 to pretreatment unit 3 via booster pump 51, where suspended particles are intercepted by filter element 31. After filtration, the waste liquid flows through online gold ion concentration detector 8 into resin tank 1 41 for primary adsorption. Residual waste liquid enters resin tank 2 42 for deep adsorption, and the tail liquid is discharged from discharge port 43. Control unit 5 collects flow rate, pressure, and gold ion concentration data in real time: when the pressure > 0.5 MPa or the gold ion concentration changes abruptly, the speed of booster pump 51 is automatically adjusted; when the pressure ≥ 0.6 MPa, the pump is immediately stopped, triggering blockage protection.
[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A gold ion resin adsorption and recovery device, characterized in that, The system includes a collection tank (1) for gold-containing waste liquid, a pretreatment unit (3), an adsorption tower system (4), and a control unit (5); the inlet of the pretreatment unit (3) is connected to the collection tank (1) and is used to filter suspended particles in the gold-containing waste liquid; the inlet of the adsorption tower system (4) is connected to the outlet of the pretreatment unit (3), and the adsorption tower system (4) consists of two resin tanks connected in series for selective adsorption of gold ions; the outlet of the adsorption tower system (4) is connected to a waste liquid discharge port (43); the control unit (5) consists of a flow sensor (111), a pressure sensor (112), and a booster pump (51) that drives the waste liquid to flow from the collection tank (1) to the adsorption tower system (4); the flow sensor (111), the pressure sensor (112), and the booster pump (51) are all signal connected to the control unit (5).
2. The gold ion resin adsorption and recovery device according to claim 1, characterized in that: The pretreatment unit (3) includes a cylindrical stainless steel housing and a precision filter (31) disposed inside the housing. The precision filter (31) is a polypropylene pleated filter element, which is fixed inside the stainless steel housing by a snap-on end cap.
3. The gold ion resin adsorption and recovery device according to claim 1, characterized in that: The adsorption tower system (4) uses a strongly basic anion exchange resin.
4. The gold ion resin adsorption and recovery device according to claim 1, characterized in that: The adsorption tower system (4) includes resin tank one (41) and resin tank two (42) arranged in series; the outlet of the pretreatment unit (3) is connected to the inlet of resin tank one (41), the outlet of resin tank one (41) is connected to the inlet of resin tank two (42), and the outlet of resin tank two (42) is connected to the waste liquid discharge port (43).
5. The gold ion resin adsorption and recovery device according to claim 4, characterized in that: The flow sensor (111) and pressure sensor (112) are fixedly installed on the resin tank (41).
6. The gold ion resin adsorption and recovery device according to claim 1, characterized in that: It also includes an online gold ion concentration detector (8), which is installed on the pipeline between the outlet of the pretreatment unit (3) and the inlet of the adsorption tower system (4) and is signal-connected to the control unit (5).
7. The gold ion resin adsorption and recovery device according to claim 1, characterized in that: The control unit (5) is configured to receive the pressure signal from the pressure sensor (112), and the upper limit of the range of the pressure sensor (112) exceeds 0.6 MPa.
8. The gold ion resin adsorption and recovery device according to claim 1, characterized in that: The booster pump (51) is a centrifugal booster pump, which is installed on the pipeline between the collection tank (1) and the pretreatment unit (3).