Dissolving solution filtering device for gold refining
By using a two-stage filtration device consisting of a metal filter and a nylon filter, combined with a motor-driven scraper and electromagnetic adsorption, the problem of easy clogging in traditional gold refining filtration devices has been solved, achieving efficient impurity interception and resource recovery, and reducing the risk of manual operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU NUOBEIJIN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-28
AI Technical Summary
Traditional gold refining filtration devices are prone to clogging, and the filters require manual cleaning and are inconvenient to disassemble, affecting the filtration effect and efficiency.
It adopts a two-stage filtration system with metal and nylon filters, combined with a motor-driven scraper and electromagnetic adsorption, to automatically clean impurities and classify and recycle waste materials, reducing manual intervention and downtime.
It improves filtration accuracy and efficiency, achieves efficient impurity retention and resource recovery, and reduces the risks associated with manual operation.
Smart Images

Figure CN224558199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gold refining technology, specifically to a solution filtration device for gold refining. Background Technology
[0002] Gold refining refers to the process of removing impurities from crude gold to produce pure gold. It is an important part of the gold extraction and metallurgical process. In addition to gold electrolytic refining and total extraction purification, gold refining methods also include high-temperature chlorination and general chemical methods. Crude gold usually contains 70%-95% gold and 1%-25% silver. Some also contain about 20% base metal impurities such as copper, lead, zinc, mercury, iron, arsenic, and antimony. During the gold refining process, the solution (such as aqua regia, cyanide solution, etc.) needs to undergo multi-stage filtration to remove insoluble impurities and ensure the purity of the gold. Traditional filtration devices are mostly single-stage filtration devices, which can easily clog the filter screen and affect the subsequent filtration effect. Metal impurities (such as silver and copper) accumulated on the surface of the filter screen need to be scraped off manually, which is dangerous and can easily damage the filter screen. Furthermore, the fixedly installed filter screen is inconvenient to disassemble later. Therefore, we propose a solution filtration device for gold refining. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a solution filtration device for gold refining. It improves the filtration accuracy and efficiency through two-stage filtration of metal and nylon filter screens. The motor-driven scraper and electromagnetic adsorption can efficiently remove impurities from the filter screen and classify and recycle waste materials, reducing manual intervention and downtime. This makes the device suitable for high-purity gold refining processes and can effectively solve the problems in the background technology.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for a gold refining solution, comprising a shell, a metal filter screen, and a nylon filter screen; Housing: A liquid collecting hopper is fixed inside, and a liquid outlet pipe is fixed on the bottom surface of the liquid collecting hopper. An intelligent solenoid valve is installed on the outside of the liquid outlet pipe. A first filter frame and a second filter frame are arranged sequentially from top to bottom on the rear side inside the housing. The metal filter screen passes through the through groove on the top surface of the housing and is inserted into the corresponding interior of the first filter frame. The nylon filter screen passes through the through groove on the top surface of the housing and is inserted into the corresponding interior of the second filter frame. A cleaning unit is provided inside the housing. The system also includes a controller, which is fixed to the right side of the housing. The input terminal of the intelligent solenoid valve is electrically connected to the output terminal of the controller, and the input terminal of the controller is electrically connected to the output terminal of an external power source.
[0005] The metal filter screen inserted inside the first filter frame can filter out larger particles of impurities in the solution, while the nylon filter screen inserted inside the second filter frame can filter out smaller impurities in the solution after the initial filtration. This forms a stepped two-stage filtration to improve the impurity retention rate.
[0006] Furthermore, the cleaning unit includes a motor, a motor frame, a lead screw, an adjusting plate, a scraper, a guide shell, a collection box, and a waste box. The motor frame is mounted on the right side of the housing, and motors are fixed on both sides of the motor frame surface. The output shaft of the motor is connected to the right end of the lead screw, and the lead screw is threadedly connected to the screw hole on the surface of the adjusting plate. The adjusting plate is slidably installed inside the housing, and a scraper is fixed on the bottom surface of the adjusting plate. The guide shell is connected to the left side of the housing, and the bottom end of the guide shell is connected to the top surface of the collection box. A waste box is slidably installed inside the collection box. The input end of the motor is electrically connected to the output end of the controller. Starting the motor drives the lead screw to rotate, causing the scraper on the bottom surface of the adjusting plate to move along the top surface of the metal filter screen and the nylon filter screen, thereby preventing excessive accumulation of impurities that would affect the filtration efficiency and effect of the subsequent dissolving solution. At the same time, the impurities that fall off during cleaning are collected in the waste box for personnel to handle.
[0007] Furthermore, the cleaning unit also includes an electromagnet, a magnetic rod, a fixing plate, a mounting bracket, and a stop bar. Magnetic rods are evenly fixed on the right side of the fixing plate. There are two mounting brackets, arranged front and back on the right side of the fixing plate, and the mounting brackets are inserted into the mounting grooves on the surface of the guide shell. An electromagnet is fixed on the surface of the fixing plate, and the electromagnet is fitted with the magnetic rod. There are two stop bars, arranged front and back, and rotatably mounted on the surface of the guide shell. The input end of the electromagnet is electrically connected to the output end of the controller. Rotating the stop bar fixes the fixing plate to the surface of the guide shell. When the electromagnet is energized, the magnetic rod becomes magnetic to attract metal residues in the impurities, thereby achieving the separation and recycling of metal and non-metal impurities and improving resource utilization.
[0008] Furthermore, the cleaning unit also includes a baffle, a handle, a slide groove, and a rubber pad. The slide groove is formed on the side of the housing, and the interior of the slide groove is slidably installed with one side of the interior of the baffle. The rubber pad is fixed inside the baffle, and the handle is installed on the front side of the baffle. The slidably installed baffle facilitates quick disassembly and assembly of the metal filter and the nylon filter, while the rubber pad prevents leakage at the joint between the baffle and the housing.
[0009] Furthermore, it also includes a linear motor, a pressure frame, and anti-slip strips. There are two linear motors, which are fixed on the left and right sides inside the housing respectively. The inner side of the linear motor's moving part is connected to the end of the pressure frame. The bottom surface of the pressure frame is glued with anti-slip strips. The input end of the linear motor is electrically connected to the output end of the controller. Activating the linear motor drives the pressure frame to move downward to fix the placed liquid tank. The glued anti-slip strips can increase the stability of the liquid tank being pressed.
[0010] Furthermore, it also includes a weighing device and a display screen. The weighing device is installed inside a groove on the bottom surface of the housing, and the display screen is installed on the front side of the housing. The output of the weighing device is electrically connected to the input of the controller, and the input of the display screen is electrically connected to the output of the controller. The weighing device monitors the weight of the dissolved liquid inside the tank in real time and displays the feedback on the display screen. When the weight of the dissolved liquid reaches a preset value, the intelligent solenoid valve is activated to close it.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This gold refining solution filtration device has the following advantages: 1. The metal filter screen inserted inside the first filter frame can filter out larger particles of impurities in the solution, while the nylon filter screen inserted inside the second filter frame can filter out smaller impurities in the solution after the initial filtration. This forms a stepped two-stage filtration to improve the impurity retention rate.
[0012] 2. By starting the motor and rotating the lead screw, the scraper on the bottom of the adjusting plate moves along the top surface of the metal and nylon filter screens, thus preventing excessive accumulation of impurities that could affect the filtration efficiency and effect of the subsequent dissolving solution. Meanwhile, the impurities that fall off are collected in the waste box for disposal.
[0013] 3. By rotating the stop lever, the fixing plate is fixed to the surface of the guide shell. When the electromagnet is energized, the magnetic rod becomes magnetic to adsorb the metal residue in the impurities, so as to achieve the separation and recycling of metal and non-metal impurities, thereby improving the resource utilization rate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cleaning unit structure of this utility model; Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0015] In the diagram: 1. Housing, 2. Cleaning unit, 21. Motor, 22. Motor frame, 23. Lead screw, 24. Adjusting plate, 25. Scraper, 26. Guide shell, 27. Collection box, 28. Waste box, 29. Electromagnet, 210. Magnetizing rod, 211. Fixing plate, 212. Mounting bracket, 213. Stop bar, 214. Baffle, 215. Handle, 216. Slide groove, 217. Rubber pad, 3. Liquid collection hopper, 4. First filter frame, 5. Second filter frame, 6. Metal filter screen, 7. Nylon filter screen, 8. Liquid outlet pipe, 9. Intelligent solenoid valve, 10. Linear motor, 11. Pressure frame, 12. Anti-slip strip, 13. Weighing device, 14. Display screen, 15. Controller. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-3 This embodiment provides a technical solution: a filtration device for a gold refining solution, comprising a housing 1, a metal filter screen 6, and a nylon filter screen 7; Housing 1: A liquid collecting hopper 3 is fixed inside, and a liquid outlet pipe 8 is fixed to the bottom surface of the liquid collecting hopper 3. A smart solenoid valve 9 is installed on the outside of the liquid outlet pipe 8. From top to bottom, a first filter frame 4 and a second filter frame 5 are arranged on the rear side inside the housing 1. A metal filter screen 6 passes through the through groove on the top surface of the housing 1 and is inserted into the interior of the first filter frame 4. A nylon filter screen 7 passes through the through groove on the top surface of the housing 1 and is inserted into the interior of the second filter frame 5. A cleaning unit 2 is provided inside the housing 1. The cleaning unit 2 includes a motor 21, a motor frame 22, a lead screw 23, an adjusting plate 24, a scraper 25, a guide shell 26, a collection box 27, and a waste box 28. The motor frame 22 is located on the right side of the housing 1. Motors 21 are fixed on both sides of the surface of the motor frame 22. The output shaft of motor 21 is connected to the right end of lead screw 23. Lead screw 23 is threadedly connected to the screw hole on the surface of adjusting plate 24. Adjusting plate 24 is slidably installed inside housing 1. Scraper 25 is fixed on the bottom surface of adjusting plate 24. Guide shell 26 is connected to the left side of housing 1. The bottom end of guide shell 26 is connected to the top surface of collection box 27. Waste box 28 is slidably installed inside collection box 27. The input end of motor 21 is electrically connected to the output end of controller 15. Starting motor 21 drives lead screw 23 to rotate, causing scraper 25 on the bottom surface of adjusting plate 24 to move along the top surface of metal filter screen 6 and nylon filter screen 7, thereby preventing excessive accumulation of impurities that affect the filtration efficiency and effect of subsequent dissolving solution. At the same time, the impurities that fall off are collected in the waste box. The internal components of the cleaning unit 28 are collected for personnel processing. The cleaning unit 2 also includes an electromagnet 29, a magnetic rod 210, a fixing plate 211, a mounting bracket 212, and a stop bar 213. Magnetic rods 210 are evenly fixed to the right side of the fixing plate 211. Two mounting brackets 212 are arranged correspondingly on the right side of the fixing plate 211, and they are inserted into the mounting grooves on the surface of the guide shell 26. An electromagnet 29 is fixed to the surface of the fixing plate 211, and it is fitted to the magnetic rod 210. Two stop bars 213 are rotatably mounted on the surface of the guide shell 26, corresponding to each other. The input end of the electromagnet 29 is electrically connected to the output end of the controller 15. Rotating the stop bars 213 fixes the fixing plate 211 to the surface of the guide shell 26. On the other hand, when the electromagnet 29 is energized, the magnetic rod 210 becomes magnetic to attract metal residues in the impurities, so as to separate and recycle metal and non-metal impurities, thereby improving resource utilization. The cleaning unit 2 also includes a baffle 214, a handle 215, a slide 216 and a rubber pad 217. The slide 216 is opened on the side of the housing 1. The interior of the slide 216 is slidably installed with one side of the interior of the baffle 214. The rubber pad 217 is fixed inside the baffle 214. The handle 215 is installed on the front side of the baffle 214. The slidably installed baffle 214 facilitates the quick disassembly and assembly of the metal filter screen 6 and the nylon filter screen 7. The rubber pad 217 can prevent leakage at the joint between the baffle 214 and the housing 1. The system includes a controller 15, which is fixed to the right side of the housing 1. The input of the intelligent solenoid valve 9 is electrically connected to the output of the controller 15, which in turn is electrically connected to the output of an external power supply. A metal filter 6 inserted inside the first filter frame 4 filters larger particles of impurities in the solution, while a nylon filter 7 inserted inside the second filter frame 5 filters smaller impurities from the initially filtered solution. This forms a stepped two-stage filtration system to improve the impurity retention rate. The system also includes a linear motor 10, a pressure frame 11, and anti-slip strips 12. There are two linear motors 10, fixed to the left and right sides of the housing 1 respectively. The inner side of the actuator of the linear motor 10 is connected to the end of the pressure frame 11. The bottom surface of the frame 11 is bonded with anti-slip strips 12. The input end of the linear motor 10 is electrically connected to the output end of the controller 15. When the linear motor 10 is started, it drives the frame 11 to move downward to fix the placed liquid tank. The bonded anti-slip strips 12 can increase the stability of the liquid tank. The frame also includes a weighing device 13 and a display screen 14. The weighing device 13 is installed in a groove on the bottom surface of the housing 1. The display screen 14 is installed on the front side of the housing 1. The output end of the weighing device 13 is electrically connected to the input end of the controller 15. The input end of the display screen 14 is electrically connected to the output end of the controller 15. The weighing device 13 monitors the weight of the dissolved liquid inside the liquid tank in real time and displays the feedback on the display screen. When the weight of the dissolved liquid reaches the preset value, the intelligent solenoid valve 9 is activated to close it.
[0018] The working principle of the gold refining solution filtration device provided by this utility model is as follows: First, the metal filter screen 6 and the nylon filter screen 7 are respectively inserted into the first filter frame 4 and the second filter frame 5. The sliding baffle 214 facilitates the fixing of the metal filter screen 6 and the nylon filter screen 7, while the rubber pad 217 can prevent leakage at the contact point between the baffle 214 and the housing 1. The liquid tank is placed on the bottom surface inside the housing 1, and the linear motor 10 is started to drive the pressure frame 11 to move downward to fix the placed liquid tank. The adhesive anti-slip strip 12 can increase the stability of the liquid tank. Then, the gold refining solution required is poured in from the top surface of the housing 1. The metal filter screen 6 can filter out larger particles of impurities in the solution, while the nylon filter screen 7 can filter out the impurities in the initially filtered solution. Fine impurities are filtered out, forming a two-stage filtration process to improve the impurity retention rate. After filtration for a period of time, the motor 21 is started to drive the lead screw 23 to rotate, causing the scraper 25 on the bottom of the adjusting plate 24 to move along the top surface of the metal filter screen 6 and the nylon filter screen 7, thereby preventing excessive accumulation of impurities that would affect the filtration efficiency and effect of the subsequent solution. At this time, the electromagnet 29 is energized, causing the magnetic rod 210 to become magnetic, which adsorbs the metal residue in the impurities, thereby achieving the separation and recovery of metal and non-metal impurities and improving resource utilization. Meanwhile, the impurities that fall off are collected in the waste box 28 for personnel to handle. Finally, the weighing device 13 monitors the weight of the solution in the tank in real time and displays the feedback on the display screen. When the weight of the solution reaches the preset value, the intelligent solenoid valve 9 is activated to close it.
[0019] It is worth noting that the controller 15 disclosed in the above embodiments is provided with buttons on its surface corresponding to the motor 21, electromagnet 29, intelligent solenoid valve 9, linear motor 10, weighing device 13, and display screen 14. The controller 15 controls the operation of the motor 21, electromagnet 29, intelligent solenoid valve 9, linear motor 10, weighing device 13, and display screen 14 using methods commonly used in the prior art.
[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A filtration device for a dissolving solution used in gold refining, characterized in that: It includes a housing (1), a metal filter (6), and a nylon filter (7). Housing (1): A liquid collecting hopper (3) is fixed inside. A liquid outlet pipe (8) is fixed on the bottom surface of the liquid collecting hopper (3). An intelligent solenoid valve (9) is installed on the outside of the liquid outlet pipe (8). A first filter frame (4) and a second filter frame (5) are arranged sequentially from top to bottom on the rear side inside the housing (1). The metal filter screen (6) passes through the through groove on the top surface of the housing (1) and is inserted into the interior of the first filter frame (4). The nylon filter screen (7) passes through the through groove on the top surface of the housing (1) and is inserted into the interior of the second filter frame (5). A cleaning unit (2) is provided inside the housing (1). The system also includes a controller (15), which is fixed on the right side of the housing (1). The input end of the intelligent solenoid valve (9) is electrically connected to the output end of the controller (15), and the input end of the controller (15) is electrically connected to the output end of an external power source.
2. The gold refining solution filtration device according to claim 1, characterized in that: The cleaning unit (2) includes a motor (21), a motor frame (22), a lead screw (23), an adjusting plate (24), a scraper (25), a guide shell (26), a collection box (27), and a waste box (28). The motor frame (22) is located on the right side of the housing (1). Motors (21) are fixed on both sides of the surface of the motor frame (22). The output shaft of the motor (21) is connected to the right end of the lead screw (23). The lead screw (23) is threadedly connected to the screw hole on the surface of the adjusting plate (24). The adjusting plate (24) is slidably installed inside the housing (1). A scraper (25) is fixed on the bottom surface of the adjusting plate (24). The guide shell (26) is connected to the left side of the housing (1). The bottom end of the guide shell (26) is connected to the top surface of the collection box (27). The waste box (28) is slidably installed inside the collection box (27). The input end of the motor (21) is electrically connected to the output end of the controller (15).
3. The gold refining solution filtration device according to claim 2, characterized in that: The cleaning unit (2) also includes an electromagnet (29), a magnetic rod (210), a fixing plate (211), a mounting bracket (212), and a stop bar (213). The magnetic rod (210) is evenly fixed on the right side of the fixing plate (211). There are two mounting brackets (212) arranged in a front-to-back manner on the right side of the fixing plate (211). The mounting brackets (212) are inserted into the mounting groove on the surface of the guide shell (26). The surface of the fixing plate (211) is fixed with an electromagnet (29). The electromagnet (29) is fitted and installed in close contact with the magnetic rod (210). There are two stop bars (213) arranged in a front-to-back manner and rotated on the surface of the guide shell (26). The input end of the electromagnet (29) is electrically connected to the output end of the controller (15).
4. The gold refining solvent filtration device according to claim 3, characterized in that: The cleaning unit (2) also includes a baffle (214), a handle (215), a groove (216) and a rubber pad (217). The groove (216) is opened on the side of the housing (1). The inside of the groove (216) is slidably installed with one side of the inside of the baffle (214). The rubber pad (217) is fixed inside the baffle (214). The handle (215) is installed on the front side of the baffle (214).
5. The gold refining solution filtration device according to claim 1, characterized in that: It also includes a linear motor (10), a pressure frame (11) and an anti-slip strip (12). There are two linear motors (10) and they are fixed on the left and right sides inside the housing (1). The inner side of the moving part of the linear motor (10) is connected to the end of the pressure frame (11). The bottom surface of the pressure frame (11) is bonded with an anti-slip strip (12). The input end of the linear motor (10) is electrically connected to the output end of the controller (15).
6. The gold refining solution filtration device according to claim 1, characterized in that: It also includes a weighing device (13) and a display screen (14). The weighing device (13) is installed inside a groove on the bottom surface of the housing (1). The display screen (14) is installed on the front side of the housing (1). The output end of the weighing device (13) is electrically connected to the input end of the controller (15). The input end of the display screen (14) is electrically connected to the output end of the controller (15).