Solution condensation circulating device for recycling precious metal through photocatalysis

Abstract

The utility model relates to the technical field of precious metal recovery, and solves the problems that acetonitrile and dichloromethane are not easy to recover and a solvent is wasted in the existing precious metal dissolving method. The solution condensation circulating device comprises an object placing plate, a supporting rod is vertically installed at one end of the object placing plate, a reaction bottle and a condensation backflow device installed on the reaction bottle are arranged on the object placing plate at one end of the supporting rod, and the condensation backflow device comprises a condensation backflow pipe installed on the reaction bottle. A diffusion cap is arranged at the upper end of the condensation backflow pipe, a plurality of overflow holes are formed in the diffusion cap, the inward extending length of the overflow holes and the diffusion cap is smaller than the wall thickness of the diffusion cap, the diffusion cap is communicated with the condensation backflow pipe, and the condensation backflow pipe comprises a pipe body and a backflow pipe installed in the pipe body. The backflow pipe is longer than the pipe body and is spirally arranged, the interior of the backflow pipe is through, and the end of the backflow pipe is communicated with an inner cavity of the diffusion cap.

Description

Technical Field

[0001] This utility model relates to the field of precious metal recycling technology, specifically a solution condensation and circulation device for photocatalytic precious metal recycling. Background Technology

[0002] Currently, the most common industrial methods for dissolving precious metals are cyanidation and aqua regia treatment, which are toxic, harmful, and highly corrosive. In addition, many potential reagents, such as complexes of chlorine, mercury, or sulfur, are mostly highly corrosive or toxic. Therefore, these traditional industrial methods cannot perfectly extract precious metals without polluting the environment.

[0003] Furthermore, due to the volatility of acetonitrile and dichloromethane, existing precious metal dissolution methods make it difficult to recover acetonitrile and dichloromethane, resulting in solvent waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a solution condensation and circulation device for photocatalytic recovery of precious metals, which solves the problem of acetonitrile and dichloromethane being difficult to recover and resulting in solvent waste in existing precious metal dissolution methods.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solution condensation and circulation device for photocatalytic recovery of precious metals, comprising a plate, a support rod vertically mounted on one end of the plate, a reaction flask and a condensation reflux device mounted on the plate at one end of the support rod;

[0006] The reflux condenser includes a reflux condenser installed on the reaction flask. A diffusion cap is provided at the upper end of the reflux condenser. The diffusion cap has several overflow holes. The length of the overflow holes extending inward from the diffusion cap is less than the wall thickness of the diffusion cap. The diffusion cap is connected to the reflux condenser.

[0007] The condensation reflux pipe includes a pipe body and a reflux pipe installed inside the pipe body. The length of the reflux pipe is greater than the length of the pipe body and is arranged in a spiral shape. The reflux pipe is internally continuous and its end is connected to the inner cavity of the diffuser cap.

[0008] In one embodiment, the support rod is provided with a plurality of fixed connecting rods that slide thereon. Each fixed connecting rod includes a fixed sleeve sleeved on the support rod. The fixed sleeve extends a connecting rod to one end of the condensation reflux device. A tie sleeve for supporting the reaction flask or reflux tube is installed on the extended end of the connecting rod.

[0009] In one embodiment, the support rod has a plurality of symmetrical fixing slots, which are equidistant from front to back. The fixing sleeve has an inner hole adapted to the fixing slots. Two inner holes are symmetrically opened on the fixing sleeve, and the inner holes are filled with bolts that are screwed inward.

[0010] In one embodiment, the harness sleeve is semi-circular with a single-position opening, and an outwardly extending end plate is installed on the structure at the opening end of the harness sleeve. A bolt for adjusting the distance between the two end plates is connected between them.

[0011] In one embodiment, the pipe body is provided with an inlet and an outlet. The inlet is located lower than the outlet, and both the inlet and outlet are connected to the pipe body for water to enter and exit.

[0012] In one embodiment, the connecting rod consists of a connecting fixing sleeve, an end rod of the connecting rod, and an indirect rod, with the indirect rod connecting between the two end rods and the end rods being threadedly connected to the indirect rod.

[0013] Compared with the prior art, this utility model provides a solution condensation and circulation device for photocatalytic recovery of precious metals, which has the following beneficial effects:

[0014] In the technical solution disclosed in this utility model, a more efficient use of solvent is achieved by using a condenser reflux pipe installed on the reaction flask to condense and reflux water. After the vapor is condensed by the condenser pipe, it is refluxed into a colorless liquid and transported to the dissolving reaction vessel for recycling.

[0015] Through this utility model, the fixed connecting rod and the matching of the fixed groove on the support rod can fix the support rod and the condensation reflux device at a certain distance and maintain their stable state on the shelf through the fixed connecting rod, and the alignment of the inner hole of the fixed sleeve with the fixed groove enhances the installation stability on the support rod. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixed connecting rod structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the condensation reflux device of this utility model.

[0020] In the diagram: 1. Shelf; 2. Support rod; 3. Reaction flask; 4. Condensation reflux device; 41. Condensation reflux pipe; 411. Pipe body; 412. Reflux pipe; 413. Inlet; 414. Outlet; 42. Diffusion cap; 43. Overflow hole; 5. Fixing rod; 51. Fixing sleeve; 52. Connecting rod; 521. End rod; 522. Indirect rod; 53. Bundle sleeve; 54. Inner hole; 55. End plate; 6. Fixing groove. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Figures 1-3 This is one embodiment of the present invention, addressing the specific problem that currently, the most common industrial methods for dissolving precious metals are cyanidation and aqua regia treatment, which are toxic, harmful, and highly corrosive. Furthermore, many potential reagents, such as complexes of chlorine, mercury, or sulfur, are highly corrosive or toxic. Therefore, these traditional industrial methods cannot perfectly extract precious metals without polluting the environment. Additionally, due to the volatility of acetonitrile and dichloromethane, existing precious metal dissolution methods make it difficult to recover these substances, resulting in solvent waste. To address the above-mentioned problem of difficult solvent recovery, this solution provides a photocatalytic precious metal recovery solution condensation and circulation device. It utilizes a condensation reflux pipe 41 installed on the reaction flask 3 to achieve more efficient solvent utilization through water condensation reflux. After condensation by the condenser pipe, the vapor is refluxed into a colorless liquid, which is then transported to the dissolution reaction vessel for recycling.

[0024] A solution condensation and circulation device for photocatalytic recovery of precious metals includes a plate 1. A support rod 2 is vertically mounted on one end of the plate 1. A reaction bottle 3 and a condensation reflux device 4 are mounted on the plate 1 at one end of the support rod 2. The condensation reflux device 4 includes a condensation reflux pipe 41 mounted on the reaction bottle 3. A diffusion cap 42 is provided at the upper end of the condensation reflux pipe 41. The diffusion cap 42 has several overflow holes 43. The inward extension length of the overflow holes 43 and the diffusion cap 42 is less than the wall thickness of the diffusion cap 42. The diffusion cap 42 is connected to the condensation reflux pipe 41. The diameter of the diffusion cap 42 is larger than the diameter of the condensation reflux pipe 41. The diffusion cap 42 is interference-fitted onto the condensation reflux pipe 41. In order to increase the tightness of the connection, a rubber layer is attached to the inside of the connection between the diffusion cap 42 and the condensation reflux pipe 41.

[0025] The condensate return pipe 41 includes a pipe body 411 and a return pipe 412 installed inside the pipe body 411. The length of the return pipe 412 is greater than the length of the pipe body 411 and is arranged in a spiral shape. The return pipe 412 is internally continuous and its end is connected to the inner cavity of the diffuser cap 42. The pipe body 411 has an inlet 413 and an outlet 414. The inlet 413 is located lower than the outlet 414, and both the inlet 413 and the outlet 414 are connected to the pipe body 411 for water to enter and exit. External flowing water enters from the inlet 413 and gradually floods the pipe body 411, wrapping the return pipe 412 for heat exchange, and then flows out from the outlet 414. The return pipe 412 is cooled by the flowing water and produces steam condensation. After it diffuses into the diffuser cap 42, the cavity inside the diffuser cap 42 increases the surface area for steam adhesion. In addition, the overflow hole 43 provided on the diffuser cap 42 enhances the heat exchange between the cavity inside the diffuser cap 42 and the outside air, thus increasing the effect of steam condensation.

[0026] The support rod 2 is provided with several fixed connecting rods 5 that slide on it. Each fixed connecting rod 5 includes a fixed sleeve 51 that is sleeved on the support rod 2. A connecting rod 52 extends from one end of the fixed sleeve 51 toward the condenser reflux device 4. A tie-position sleeve 53 for supporting the reaction bottle 3 or the reflux pipe 412 is installed at the extended end of the connecting rod 52. The tie-position sleeve 53 is semi-annular and has a single-position opening. An outwardly extending end plate 55 is installed on the structure at the opening end of the tie-position sleeve 53. A bolt for adjusting the distance between the two end plates 55 is connected between them. The support rod 2 has several symmetrically arranged fixing slots 6. The fixing slots 6 are equidistantly arranged. The fixed sleeve 51 has two inner holes 54 that are adapted to the fixing slots 6. The inner holes 54 are symmetrically arranged on the fixed sleeve 51 and are filled with bolts that are screwed inward. The connecting rod 52 consists of a connecting fixing sleeve 51, an end rod 521, and an indirect rod 522. The indirect rod 522 connects the two end rods 521, and the end rods 521 and indirect rods 522 are threaded together. Both ends of the indirect rod 522 have internal threaded grooves, and the ends of the end rods 521 and indirect rods 522 that meet are provided with external threads. Rotating the indirect rod 522 can achieve the overall contraction or extension of the connecting rod 52. The fixed connecting rod 5 and the fixed groove 6 provided on the support rod 2 can fix the support rod 2 and the condensation reflux device 4 at a certain distance and maintain their stability on the shelf 1 through the fixed connecting rod 5. Furthermore, the alignment of the inner hole 54 on the fixing sleeve 51 with the fixed groove 6 enhances the installation stability on the support rod 2.

[0027] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0028] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solution condensation and recycling device for photocatalytic recovery of precious metals, comprising a shelf (1), characterized in that: One end of the shelf (1) is vertically installed with a support rod (2), and the support rod (2) is provided with a reaction bottle (3) on the shelf (1) at one end and a condensation reflux device (4) installed on the reaction bottle (3). The condensation reflux device (4) comprises a condensation reflux pipe (41) installed on the reaction bottle (3), and the upper end of the condensation reflux pipe (41) is provided with a diffusion cap (42), a plurality of overflow holes (43) are formed in the diffusion cap (42), the extension length of the overflow holes (43) and the inward of the diffusion cap (42) is less than the wall thickness of the diffusion cap (42), and the diffusion cap (42) is in communication with the condensation reflux pipe (41). The condensation reflux pipe (41) comprises a pipe body (411) and a reflux pipe (412) installed in the pipe body (411), the length of the reflux pipe (412) is greater than the length of the pipe body (411) and is arranged in a spiral shape, and the reflux pipe (412) is through the inside and the end is in communication with the inner cavity of the diffusion cap (42).

2. The solution condensation and circulation device for photocatalytic recovery of precious metals according to claim 1, characterized in that: A plurality of fixed connecting rods (5) are arranged on the support rod (2) and slide thereon, the fixed connecting rod (5) comprises a fixed sleeve (51) sleeved on the support rod (2), the fixed sleeve (51) extends to one end of the condensation reflux device (4) and has a connecting rod (52), and the connecting rod (52) is provided with a binding sleeve (53) for supporting the reaction bottle (3) or the reflux pipe (412) at the end of the extension.

3. The solution condensation and circulation device for photocatalytic recovery of precious metals according to claim 2, characterized in that: A plurality of front and rear symmetrical fixed groove points (6) are formed on the support rod (2), the fixed groove points (6) are arranged at equal intervals, the fixed sleeve (51) is provided with an inner hole (54) matched with the fixed groove point (6), two inner holes (54) are formed on the fixed sleeve (51) and are front and rear symmetrical, and the inner hole (54) is filled with an inwardly screwed bolt.

4. The solution condensation and circulation device for photocatalytic recovery of precious metals according to claim 2, characterized in that: The binding sleeve (53) is in a half-ring shape and has a single position opening, outwardly extending end plates (55) are arranged on the opening end structure of the binding sleeve (53), and bolts for adjusting the distance between the end plates (55) are arranged between the two end plates (55).

5. The solution condensation and circulation device for photocatalytic recovery of precious metals according to claim 1, characterized in that: The pipe body (411) is provided with a water inlet (413) and a water outlet (414), the water inlet (413) is arranged lower than the water outlet (414), and the water inlet (413) and the water outlet (414) are in communication in the pipe body (411) for water inflow and outflow.

6. The solution condensation and circulation device for photocatalytic recovery of precious metals according to claim 2, characterized in that: The connecting rod (52) is composed of a connecting fixed sleeve (51), end rods (521) and indirect rods (522), the indirect rods (522) are connected between the two end rods (521), and the end rods (521) and the indirect rods (522) are threadedly connected.

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