A reduction treatment device for aqua regia residue

Abstract

The present invention relates to a reduction treatment device for aqua regia slag, belonging to the technical field of aqua regia slag reduction treatment tools; the invention comprises a base, a liftable reduction tank is arranged at the upper end of the base through a first electric push rod, a neutralization tank is fixedly arranged at the upper end of the reduction tank, a tank cover is fixedly arranged at the upper end of the neutralization tank, a neutralization component is arranged inside the neutralization tank, the neutralization component comprises a neutralization cylinder and a collecting cylinder distributed up and down, a reduction component is arranged inside the reduction tank, the reduction component comprises a heating pipe and a reduction cylinder, the heating pipe is fixedly arranged inside the reduction tank, and the reduction cylinder is slidably arranged inside the heating pipe along a vertical direction; a stirring rod is rotatably arranged inside the neutralization cylinder, a filter cylinder is arranged inside the collecting cylinder, and a guide plate and a stirring plate are rotatably arranged inside the reduction cylinder; the invention solves the problems of lack of real-time monitoring, uncertain amount of reducing agent addition and single stirring structure in current aqua regia slag reduction treatment devices.

Description

Technical Field

[0001] The invention belongs to the technical field of tools for reducing and treating aqua regia residue, and in particular relates to a reducing and treating device for aqua regia residue. Background Art

[0002] Aqua regia residue is the waste residue produced after aqua regia reacts with metals or other substances; aqua regia is a strong acid mixture composed of concentrated nitric acid and concentrated hydrochloric acid. It has strong oxidizing and corrosive properties and can dissolve precious metals such as gold and silver. It is often used in industrial and laboratory applications such as metal analysis, cleaning, and purification of precious metals in ores.

[0003] Existing aqua regia residue reduction treatment devices generally first neutralize the aqua regia residue to filter out non-precious metals, and then reduce the aqua regia residue to filter out precious metals; however, existing aqua regia residue reduction treatment devices lack an effective structure for real-time monitoring of reaction parameters (such as pH value, liquid quality, etc.), and are unable to dynamically adjust the amount of reducing agent input; the amount of reducing agent added relies solely on empirical estimation, which can easily lead to insufficient or excessive addition, affecting the efficiency of the reduction reaction and possibly producing excessive chemical residues, increasing subsequent processing costs and environmental risks; and the stirring structure design is single, unable to take into account both reaction mixing and splash prevention requirements; violent stirring may cause liquid splashing, posing a safety hazard (such as leakage of corrosive liquid); while gentle stirring is difficult to ensure sufficient reaction, especially when treating aqua regia residue with high viscosity or containing a large amount of solid particles, stirring dead corners are prone to occur, reducing the reduction effect; therefore, improvements and treatments are needed based on the above-mentioned problems. Summary of the Invention

[0004] The present invention overcomes the deficiencies of the prior art and proposes a reduction treatment device for aqua regia slag, solving the problems of the current aqua regia slag reduction treatment device lacking real-time monitoring, uncertain reducing agent addition amount, and single stirring structure.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0006] The hopper is fixed on the upper end of the hopper and is fixed on the upper end of the hopper, and the hopper is fixed on the upper end of the hopper and is fixed on the upper end of the hopper.

[0007] Furthermore, the reduction tank and the neutralization tank are both cylindrical structures with openings at both ends, and a liquid inlet and a feeding port are provided on the tank cover; the upper end opening of the reduction tank is fixedly connected to the lower end opening of the neutralization tank, and the upper end opening of the neutralization tank is fixedly connected to the outer edge of the tank cover; a circle of first electric push rods is provided at the outer edge of the upper end surface of the base, and one end of the piston rod of all the first electric push rods is fixedly connected to the lower end opening of the reduction tank.

[0008] Furthermore, the drive assembly also includes a motor, which is fixedly arranged at the center of the upper end surface of the tank cover, and the output shaft of the motor extends vertically downward into the interior of the neutralization tank. The upper end of the first connecting rod is fixedly connected to the output shaft of the motor, and a horizontal cross is fixedly arranged at the upper end of the first connecting rod. A vertical stirring rod is fixedly arranged at the lower end of each of the four ends of the cross, and multiple horizontal stirring support rods are fixedly arranged on each stirring rod; a pH sensor is arranged on the stirring rod.

[0009] Furthermore, the filter cartridge is a cylindrical structure with an open upper end, a first mounting cylinder is fixedly provided at the center of the inner bottom surface of the filter cartridge, a circle of blocking plates is fixedly provided on the outer cylindrical surface of the first mounting cylinder, and a plurality of filter holes are provided on the filter cartridge and the blocking plate; the lower end of the first connecting rod is fixedly connected to the upper end surface of the first mounting cylinder, and the upper end of the second connecting rod is fixedly connected to the center of the lower end surface of the filter cartridge.

[0010] Furthermore, the guide plate includes a first cone and a first annular plate. The first cone is a conical cylindrical structure that is thin at the top and thick at the bottom. The upper end opening of the first cone is fixedly sleeved on the outside of the second connecting rod. The first annular plate is fixedly arranged on the outside of the lower end opening of the first cone, and a circle of the guide ports is equidistantly arranged on the first annular plate; two second mounting cylinders and a third mounting cylinder distributed vertically are fixedly arranged at the lower end of the second connecting rod, a circle of first stirring plates is fixedly arranged on the outside of the second mounting cylinder, and a circle of second stirring plates is fixedly arranged on the outside of the third mounting cylinder. The first stirring plate and the second stirring plate are both arranged inside the reduction cylinder; a temperature sensor is arranged on the third mounting cylinder.

[0011] Furthermore, the neutralization cylinder includes a second cone cylinder, a third cone cylinder, a second annular plate, and a third annular plate; the second cone cylinder is a conical cylindrical structure that is thin at the top and thick at the bottom, and the third cone cylinder is a conical cylindrical structure that is thick at the top and thin at the bottom. The second cone cylinder is arranged inside the third cone cylinder, and the upper end opening of the second cone cylinder is fixedly sleeved on the outside of the first connecting rod, and the lower end opening of the second cone cylinder and the lower end opening of the third cone cylinder are fixedly connected through the second annular plate, and the third annular plate is fixedly sleeved on the outside of the upper end opening of the third cone cylinder; a first fixing ring is fixedly provided on the upper end of the inner wall of the neutralization tank, and the third annular plate of the neutralization cylinder is fixedly connected to the first fixing ring; a circle of discharge pipes is provided on the second annular plate of the neutralization cylinder, and an electromagnetic valve is provided inside each discharge pipe; a circle of discharge pipes are all arranged above the filter cylinder.

[0012] Furthermore, the collecting cylinder includes a first cylinder, a fourth conical cylinder, and a fourth annular plate; the first cylinder is a cylindrical structure with openings at both ends, and the fourth conical cylinder is a conical cylindrical structure with a thick top and a thin bottom. The fourth annular plate is fixedly sleeved on the outer side of the upper end opening of the first cylinder, the upper end opening of the fourth conical cylinder is fixedly connected to the lower end opening of the first cylinder, and the lower end opening of the fourth conical cylinder is sleeved on the outer side of the upper end of the guide plate. A second fixing ring is fixedly provided at the middle height of the inner wall of the neutralization tank, and the fourth annular plate is fixedly connected to the second fixing ring.

[0013] Furthermore, the heating tube is a cylindrical structure with open ends at the upper and lower ends. A heating chamber is provided inside the side wall of the heating tube, and a water inlet pipe and a water outlet pipe are fixedly provided on the outer wall of the heating tube. The inner ends of the water inlet pipe and the water outlet pipe are both connected to the interior of the heating chamber, and the outer ends of the water inlet pipe and the water outlet pipe pass through the side wall of the reduction tank and extend to the outside of the reduction tank.

[0014] Furthermore, the reduction cylinder is a cylindrical structure with an open upper end, and the outer wall of the reduction cylinder maintains sliding contact with the inner wall of the heating tube; a support plate is arranged under the reduction cylinder, and a plurality of pressure sensors are arranged between the upper end surface of the support plate and the lower end surface of the reduction cylinder, and a plurality of second electric push rods are fixedly arranged on the upper end surface of the base, and the piston rods of the second electric push rods are vertically upward and fixedly connected to the lower end surface of the support plate.

[0015] Furthermore, a feeding pipe is fixedly provided at the lower end of the side wall of the neutralization tank, the feeding port of the feeding pipe is located outside the neutralization tank, and the discharge port of the feeding pipe extends above the upper end opening of the reduction cylinder.

[0016] The beneficial effects of the present invention compared to the prior art are:

[0017] The present invention facilitates monitoring of the pH value of the aqua regia slag during the neutralization reaction of the aqua regia slag through the cooperation of the stirring rod and the pH sensor, thereby avoiding the influence of insufficient or excessive addition of the reducing agent on the pH value and improving the effect of the subsequent reduction reaction; facilitates monitoring of the quality of the liquid through the cooperation of the reduction cylinder and the pressure sensor, thereby facilitating the adaptation of the quality of the reducing agent and improving the effect of the reduction reaction; facilitates the guidance of the liquid and the breaking up of large particles of the reducing agent through the cooperation of the guide plate and the guide port, thereby improving the efficiency of the reduction reaction; facilitates filtering out the liquid while avoiding splashing of liquid mixed sediment through the cooperation of the filter cylinder and the baffle plate, thereby improving the quality of the filtered liquid; facilitates the full reduction reaction of the liquid through the cooperation of the first stirring plate and the second stirring plate, thereby preventing splashing of the liquid during stirring and improving the effect of reducing precious metals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0020] Figure 2 This is a schematic structural diagram of the present invention after the reduction tank and the neutralization tank are half-cut;

[0021] Figure 3 It is a schematic diagram of the structure of the present invention after half-section;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention after removing the reduction tank and the neutralization tank;

[0023] Figure 5 This is a schematic diagram of the drive component structure Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the drive component structure Figure 2 ;

[0025] Figure 7 It is a schematic diagram of the connection between the neutralization cylinder and the stirring rod;

[0026] Figure 8 It is a schematic diagram of the connection between the collection cylinder and the filter cylinder;

[0027] Figure 9 It is a schematic diagram of the connection between the base, the second electric push rod, the support plate, the pressure sensor, the reduction cylinder, and the guide plate;

[0028] Figure 10 yes Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0029] Figure 11 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0030] Among them, 1 is the base, 2 is the neutralization tank, 3 is the reduction tank, 4 is the tank cover, 5 is the first electric push rod, 6 is the liquid inlet, 7 is the feeding port, 8 is the feeding pipe, 9 is the motor, 10 is the first connecting rod, 11 is the cross, 12 is the stirring rod, 13 is the pH sensor, 14 is the first mounting cylinder, 15 is the baffle plate, 16 is the filter cartridge, 17 is the second connecting rod, 18 is the guide plate, 19 is the guide port, 20 is the first stirring plate, 21 is the second stirring plate, 22 is the neutralization cylinder, 23 is the first fixing ring, 24 is the discharge pipe, 25 is the solenoid valve, 26 is the collecting cylinder, 27 is the second fixing ring, 28 is the heating tube, 29 is the reduction cylinder, 30 is the pressure sensor, 31 is the support plate, 32 is the second electric push rod, and 33 is the temperature sensor. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0032] like Figure 1As shown in FIG. 11 , the present invention provides a reduction treatment device for aqua regia residue, comprising a base 1, a liftable reduction tank 3 is provided at the upper end of the base 1 via a first electric push rod 5, a neutralization tank 2 is fixedly provided at the upper end of the reduction tank 3, a tank cover 4 is fixedly provided at the upper end of the neutralization tank 2, a neutralization component is provided inside the neutralization tank 2, the neutralization component includes a neutralization cylinder 22 and a collecting cylinder 26 distributed up and down, a reduction component is provided inside the reduction tank 3, the reduction component includes a heating tube 28 and a reduction cylinder 29, the heating tube 28 is fixedly provided inside the reduction tank 3, and the reduction cylinder 29 is slidably provided on the heating tube 28 along the vertical direction. 28; a driving assembly is provided inside the reduction tank 3 and the neutralization tank 2, and the driving assembly includes a first connecting rod 10 and a second connecting rod 17. The first connecting rod 10 is rotatably provided inside the neutralization tank 2, and a stirring rod 12 is fixedly provided on the first connecting rod 10, and the stirring rod 12 is provided inside the neutralization cylinder 22. A filter cylinder 16 is fixedly provided between the first connecting rod 10 and the second connecting rod 17, and the filter cylinder 16 is provided inside the collecting cylinder 26. A guide plate 18 is fixedly provided on the second connecting rod 17, and the guide plate 18 is provided inside the reduction cylinder 29. A circle of guide ports 19 is provided on the outer edge of the guide plate 18.

[0033] The base 1 is a horizontally arranged circular plate-like structure, the reduction tank 3 and the neutralization tank 2 are both cylindrical structures with openings at both ends, and the tank cover 4 is a horizontally arranged circular plate-like structure. A liquid inlet 6 and a feeding port 7 are provided on the tank cover 4. The upper opening of the reduction tank 3 is fixedly connected to the lower opening of the neutralization tank 2 via a flange, and the upper opening of the neutralization tank 2 is fixedly connected to the outer edge of the tank cover 4 via a flange. A circle of first electric push rods 5 arranged in a circular array is provided at the outer edge of the upper end surface of the base 1. The piston rods of the first electric push rods 5 are vertically upward, and one end of the piston rods of all the first electric push rods 5 are fixedly connected to the lower opening of the reduction tank 3. The reduction tank 3, the neutralization tank 2, and the tank cover 4 are driven to rise or fall as a whole by the extension and retraction of the piston rods of a circle of first electric push rods 5.

[0034] The driving assembly further includes a motor 9 , a first stirring plate 20 , and a second stirring plate 21 .

[0035] The motor 9 is fixedly arranged at the center of the upper end surface of the tank cover 4, and the output shaft of the motor 9 extends vertically downward into the interior of the neutralization tank 2. The first connecting rod 10 and the second connecting rod 17 are both kept vertical and coaxially arranged, and the first connecting rod 10 is located above the second connecting rod 17. The upper end of the first connecting rod 10 is fixedly connected to the output shaft of the motor 9, and the first connecting rod 10 is driven by the motor 9 to rotate inside the neutralization tank 2. A horizontal cross 11 is fixedly arranged at the upper end of the first connecting rod 10, and the center of the cross 11 is fixedly connected to the first connecting rod 10. A vertical stirring rod 12 is fixedly arranged at the lower end of each of the four ends of the cross 11, and a plurality of horizontal stirring support rods are fixedly arranged on each stirring rod 12. A first mounting groove is provided at the end of the stirring support rod of one of the stirring rods 12, and a pH sensor 13 is provided inside the first mounting groove. The model of the pH sensor 13 is Endress+Hauser CPS11D.

[0036] The filter cartridge 16 is a cylindrical structure with an open top, and is provided with multiple filter holes on its bottom plate and sidewalls. A vertical first mounting cylinder 14 is fixedly mounted at the center of the inner bottom surface of the filter cartridge 16. A circle of baffles 15 arranged in a circular array are fixedly mounted on the outer cylindrical surface of the first mounting cylinder 14. The baffles 15 are arranged radially along the first mounting cylinder 14, and each baffle 15 is provided with multiple filter holes. The lower end of the first connecting rod 10 is fixedly connected to the upper end surface of the first mounting cylinder 14 via a flange, and the upper end of the second connecting rod 17 is fixedly connected to the center of the lower end surface of the filter cartridge 16 via a flange.

[0037] The guide plate 18 is fixedly provided at the middle upper end of the second connecting rod 17. The guide plate 18 includes a first cone and a first annular plate. The first cone is a conical cylindrical structure that is thin at the top and thick at the bottom, and the first annular plate is a horizontally arranged annular plate structure. The upper end opening of the first cone is fixedly sleeved on the outside of the second connecting rod 17, so that the upper end opening of the first cone remains closed. The first annular plate is fixedly provided on the outside of the lower end opening of the first cone, and the outer edge of the first annular plate extends to the inner wall of the reduction cylinder 29. A circle of the guide ports 19 is equidistantly provided on the first annular plate. Two second mounting cylinders and a third mounting cylinder are fixedly provided at the lower end of the second connecting rod 17. A circle of first stirring plates 20 is fixedly provided on the outside of the second mounting cylinder, and a circle of second stirring plates 21 is fixedly provided on the outside of the third mounting cylinder. The first stirring plates 20 are arranged at an angle. A second mounting groove is provided on the third mounting cylinder. A temperature sensor 33 is provided inside the second mounting groove. The model of the temperature sensor 33 is Omega PT100.

[0038] The cross-section of the neutralization cylinder 22 is a W-shaped structure. The neutralization cylinder 22 includes a second cone, a third cone, a second annular plate, and a third annular plate. The second cone is a conical cylindrical structure that is thin at the top and thick at the bottom, and the third cone is a conical cylindrical structure that is thick at the top and thin at the bottom. The second annular plate and the third annular plate are both horizontally arranged annular plate structures. The second cone is arranged inside the third cone, and the upper end opening of the second cone is fixedly sleeved on the outside of the first connecting rod 10. The upper end opening of the second cone is located below the cross 11 and remains closed. The lower end opening of the second cone is fixedly connected to the lower end opening of the third cone by the second annular plate, and the outer side of the upper end opening of the third cone is fixedly sleeved with the third annular plate. A first fixing ring 23 is fixedly arranged on the upper end of the inner wall of the neutralization tank 2. The third annular plate of the neutralization cylinder 22 is fixedly connected to the first fixing ring 23 by a circle of bolts and nuts, thereby fixing the neutralization cylinder 22 inside the neutralization tank 2.

[0039] Four stirring rods 12 are positioned between the second and third cones of the neutralization drum 22. A circular array of discharge pipes 24 is located on the second annular plate of the neutralization drum 22. Each discharge pipe 24 is internally housed with a solenoid valve 25, which controls its opening and closing. Each discharge pipe 24 is positioned above the inner side of the upper opening of the filter drum 16, and the material discharged from the discharge pipes 24 falls into the interior of the filter drum 16.

[0040] The collecting cylinder 26 includes a first cylinder, a fourth cone, and a fourth annular plate. The first cylinder is a cylindrical structure with openings at both ends, the fourth cone is a conical cylindrical structure with a thick top and a thin bottom, and the fourth annular plate is a horizontally arranged annular plate structure. The fourth annular plate is fixedly sleeved on the outer side of the upper opening of the first cylinder, the upper opening of the fourth cone is fixedly connected to the lower opening of the first cylinder, the lower opening of the fourth cone is sleeved on the outer side of the upper end of the first cone of the guide plate 18, and the lower opening of the fourth cone maintains a distance from the outer wall of the first cone of the guide plate 18. A second fixing ring 27 is fixedly provided at the middle height of the inner wall of the neutralization tank 2, and the fourth annular plate is fixedly connected to the second fixing ring 27 by a circle of bolts and nuts, thereby fixing the collecting cylinder 26 inside the neutralization tank 2.

[0041] The heating tube 28 is a cylindrical structure with open ends. It is fixed to the inner wall of the reduction tank 3. A heating chamber is defined within the sidewall of the heating tube 28. A water inlet and outlet pipes are also fixed to the outer wall of the heating tube 28. The inner ends of the inlet and outlet pipes communicate with the interior of the heating chamber, while the outer ends of the inlet and outlet pipes extend through the sidewall of the reduction tank 3 and outward. Hot water is injected into the heating chamber through the water inlet pipe. This hot water exchanges heat with the material inside the reduction cylinder 29, providing heat for the reduction reaction within the reduction tank 3. This cools the hot water, which then flows outward from the outlet pipe, thereby continuously heating the reduction tank 3.

[0042] The reduction cylinder 29 is a cylindrical structure with an open top, and the outer wall of the reduction cylinder 29 maintains sliding contact with the inner wall of the heating tube 28. The first stirring plate 20 and the second stirring plate 21 are both disposed inside the reduction cylinder 29.

[0043] A horizontal support plate 31 is positioned below the reduction cylinder 29. Multiple pressure sensors 30 are located between the upper end of the support plate 31 and the lower end of the reduction cylinder 29. These pressure sensors 30 measure the total mass of the reduction cylinder 29. These pressure sensors 30 are Honeywell Z-series, model 060-0240-02. Multiple second electric push rods 32 are fixed to the upper end of the base 1. The piston rods of these second electric push rods 32 extend vertically upward and are fixedly connected to the lower end of the support plate 31. The multiple second electric push rods 32 extend and retract synchronously, driving the support plate 31, pressure sensors 30, and reduction cylinder 29 to rise and fall synchronously.

[0044] A feeding pipe 8 is fixedly provided at the lower end of the side wall of the neutralization tank 2 . The feeding port of the feeding pipe 8 is located outside the neutralization tank 2 , and the discharge port of the feeding pipe 8 extends above the upper end opening of the reduction cylinder 29 .

[0045] The working principle of the present invention is:

[0046] Step 1: First, connect all electrical devices to the wires and power on, then flow hot water from the water inlet pipe into the heating chamber of the heating tube 28. Add the aqua regia residue into the neutralization cylinder 22 through the liquid inlet 6, then start the motor 9, and control the rotation of the first connecting rod 10 by the motor 9, thereby controlling the cross 11 and the stirring rod 12 to stir in the neutralization cylinder 22. Then, add the neutralizer into the neutralization cylinder 22 through the feeding port 7 to allow the neutralizer to fully react with the aqua regia residue. The pH value of the aqua regia residue is monitored in real time by the pH sensor 13. When the pH of the aqua regia residue is 7-9, stop adding the neutralizer first, then stop the motor 9, thereby stopping the rotation of the stirring rod 12, and then control the solenoid valve 25 to control the neutralized liquid to flow into the filter cylinder 16.

[0047] In step two, after the neutralized liquid is introduced into the filter cartridge 16, the motor 9 is started, and the first connecting rod 10 drives the baffle plate 15 and the filter cartridge 16 to rotate synchronously. The baffle plate 15 prevents the liquid from splashing during rotation. The liquid and the precipitate produced by the neutralization reaction are separated through the filter holes in the baffle plate 15 and the filter cartridge 16. The rotation of the baffle plate 15 and the filter cartridge 16 accelerates the separation of the liquid and the precipitate. The filtered liquid falls into the collection cartridge 26, which then directs the liquid to the guide plate 18. The second connecting rod 17 drives the guide plate 18 to rotate, thereby directing the liquid through a circle of guide ports 19 into the reduction cartridge 29.

[0048] In step three, when the liquid is introduced into the reduction cylinder 29, the quality of the liquid introduced into the reduction cylinder 29 is monitored by the pressure sensor 30, and then the reducing agent is added according to the quality of the liquid, and the reducing agent is fed into the reduction cylinder 29 through the feeding pipe 8. The large particles of reducing agent entering the guide port 19 are broken up and fall into the reduction cylinder 29 by the rotation of the guide plate 18, so as to facilitate the full reduction reaction of the reducing agent with the liquid; the second connecting rod 17 drives the first stirring plate 20 and the second stirring plate 21 to rotate in the reduction cylinder 29, and the first stirring plate 20 is tilted to prevent splashing when stirring the liquid. The temperature sensor 33 is used to facilitate real-time monitoring of the temperature during the reduction reaction, thereby ensuring the effect of the reduction reaction.

[0049] Step 4: After the reduction reaction is complete, the first and second electric push rods 5 and 32 are activated. The first electric push rod 5 controls the rise of the reduction tank 3, while the second electric push rod 32 controls the lowering of the reduction cylinder 29. The reduction cylinder 29 is then removed from the reduction tank 3, and the precious metals precipitated in the reduction cylinder 29 are filtered out. Finally, the first and second electric push rods 5 and 32 return the reduction cylinder 29 to the reduction tank 3, and all electrical devices are powered off.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A reduction treatment device for aqua regia residue, characterized in that: The invention comprises a base (1), a reduction tank (3) which can be lifted and lowered is provided at the upper end of the base (1) via a first electric push rod (5), a neutralization tank (2) is fixedly provided at the upper end of the reduction tank (3), a tank cover (4) is fixedly provided at the upper end of the neutralization tank (2), a neutralization component is provided inside the neutralization tank (2), the neutralization component comprises a neutralization cylinder (22) and a collecting cylinder (26) distributed up and down, a reduction component is provided inside the reduction tank (3), the reduction component comprises a heating pipe (28) and a reduction cylinder (29), the heating pipe (28) is fixedly provided inside the reduction tank (3), and the reduction cylinder (29) is slidably provided inside the heating pipe (28) along a vertical direction; between the reduction tank (3) and the neutralization tank, (2) A driving assembly is provided inside, the driving assembly comprising a first connecting rod (10) and a second connecting rod (17), the first connecting rod (10) being rotatably provided inside the neutralization tank (2), a stirring rod (12) being fixedly provided on the first connecting rod (10), the stirring rod (12) being provided inside the neutralization cylinder (22), a filter cylinder (16) being fixedly provided between the first connecting rod (10) and the second connecting rod (17), the filter cylinder (16) being provided inside the collection cylinder (26), a guide plate (18) being fixedly provided on the second connecting rod (17), the guide plate (18) being provided inside the reduction cylinder (29), and a circle of guide openings (19) being provided on the outer edge of the guide plate (18); The filter cartridge (16) is a cylindrical structure with an open top. A first mounting cylinder (14) is fixedly provided at the center of the inner bottom surface of the filter cartridge (16). A circle of blocking plates (15) is fixedly provided on the outer cylindrical surface of the first mounting cylinder (14). A plurality of filter holes are provided on the filter cartridge (16) and the blocking plates (15). The lower end of the first connecting rod (10) is fixedly connected to the upper end surface of the first mounting cylinder (14), and the upper end of the second connecting rod (17) is fixedly connected to the center of the lower end surface of the filter cartridge (16).

2. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The reduction tank (3) and the neutralization tank (2) are both cylindrical structures with openings at both ends, and a liquid inlet (6) and a feeding port (7) are provided on the tank cover (4); the upper opening of the reduction tank (3) is fixedly connected to the lower opening of the neutralization tank (2), and the upper opening of the neutralization tank (2) is fixedly connected to the outer edge of the tank cover (4); a circle of first electric push rods (5) is provided at the outer edge of the upper end surface of the base (1), and one end of the piston rod of all the first electric push rods (5) is fixedly connected to the lower opening of the reduction tank (3).

3. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The driving assembly further comprises a motor (9), the motor (9) being fixedly arranged at the center of the upper end surface of the tank cover (4), the output shaft of the motor (9) extending vertically downward into the interior of the neutralization tank (2), the upper end of the first connecting rod (10) being fixedly connected to the output shaft of the motor (9), a horizontal cross (11) being fixedly arranged at the upper end of the first connecting rod (10), a vertical stirring rod (12) being fixedly arranged at the lower end of each of the four ends of the cross (11), and a plurality of horizontal stirring rods being fixedly arranged on each stirring rod (12); and a pH sensor (13) being arranged on the stirring rod (12).

4. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The guide plate (18) includes a first cone and a first annular plate. The first cone is a conical cylindrical structure that is thin at the top and thick at the bottom. The upper end opening of the first cone is fixedly sleeved on the outside of the second connecting rod (17). The first annular plate is fixedly arranged on the outside of the lower end opening of the first cone. A circle of the guide ports (19) are equidistantly arranged on the first annular plate. Two second mounting cylinders and a third mounting cylinder are fixedly arranged on the lower end of the second connecting rod (17). A circle of first stirring plates (20) is fixedly arranged on the outside of the second mounting cylinder. A circle of second stirring plates (21) is fixedly arranged on the outside of the third mounting cylinder. The first stirring plates (20) and the second stirring plates (21) are both arranged inside the reduction cylinder (29). A temperature sensor (33) is arranged on the third mounting cylinder.

5. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The neutralization cylinder (22) includes a second cone, a third cone, a second annular plate, and a third annular plate; the second cone is a conical cylindrical structure that is thin at the top and thick at the bottom, and the third cone is a conical cylindrical structure that is thick at the top and thin at the bottom. The second cone is arranged inside the third cone, and the upper end opening of the second cone is fixedly sleeved on the outside of the first connecting rod (10). The lower end opening of the second cone is fixedly connected to the lower end opening of the third cone through the second annular plate, and the outer side of the upper end opening of the third cone is fixedly sleeved; a first fixing ring (23) is fixedly arranged on the upper end of the inner wall of the neutralization tank (2), and the third annular plate of the neutralization cylinder (22) is fixedly connected to the first fixing ring (23); a circle of discharge pipes (24) is arranged on the second annular plate of the neutralization cylinder (22), and a solenoid valve (25) is arranged inside each discharge pipe (24); a circle of discharge pipes (24) are all arranged above the filter cylinder (16).

6. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The collecting cylinder (26) includes a first cylinder, a fourth cone cylinder, and a fourth annular plate; the first cylinder is a cylindrical structure with openings at both ends, the fourth cone cylinder is a conical cylindrical structure with a thick top and a thin bottom, the fourth annular plate is fixedly sleeved on the outer side of the upper end opening of the first cylinder, the upper end opening of the fourth cone cylinder is fixedly connected to the lower end opening of the first cylinder, the lower end opening of the fourth cone cylinder is sleeved on the outer side of the upper end of the guide plate (18), a second fixing ring (27) is fixedly provided at a height of the middle portion of the inner wall of the neutralization tank (2), and the fourth annular plate is fixedly connected to the second fixing ring (27).

7. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The heating tube (28) is a cylindrical structure with upper and lower ends open. A heating chamber is provided inside the side wall of the heating tube (28). A water inlet pipe and a water outlet pipe are fixedly provided on the outer wall of the heating tube (28). The inner ends of the water inlet pipe and the water outlet pipe are both connected to the interior of the heating chamber, and the outer ends of the water inlet pipe and the water outlet pipe pass through the side wall of the reduction tank (3) and extend to the outside of the reduction tank (3).

8. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: The reduction cylinder (29) is a cylindrical structure with an open upper end, and the outer wall of the reduction cylinder (29) maintains sliding contact with the inner wall of the heating tube (28); a supporting plate (31) is provided below the reduction cylinder (29), and a plurality of pressure sensors (30) are provided between the upper end surface of the supporting plate (31) and the lower end surface of the reduction cylinder (29); a plurality of second electric push rods (32) are fixedly provided on the upper end surface of the base (1), and the piston rods of the second electric push rods (32) are vertically upward and fixedly connected to the lower end surface of the supporting plate (31).

9. The reduction treatment device for aqua regia residue according to claim 1, characterized in that: A feeding pipe (8) is fixedly provided at the lower end of the side wall of the neutralization tank (2), a feeding port of the feeding pipe (8) is located outside the neutralization tank (2), and a discharge port of the feeding pipe (8) extends above the upper end opening of the reduction cylinder (29).

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