Reaction kettle for recovering palladium from solid waste

Abstract

This utility model discloses a reaction vessel for recovering palladium from solid waste, comprising a vessel body, a stirring mechanism, a filtering mechanism, a protective mechanism, and a transfer tank. The stirring mechanism includes a support shaft I. A motor is fixedly connected to the top outer wall of the vessel body, and the output end of the motor passes through the vessel body and is fixedly connected to the support shaft I. Multiple stirring blades I and bearing sleeves are fixedly connected at equal intervals on the circumferential outer wall of the support shaft I, and the bearing sleeves are located below the stirring blades I. A support shaft II is rotatably connected inside each bearing sleeve, and multiple stirring blades II are fixedly connected at equal intervals on the circumferential outer wall of the support shaft II. Multiple push rods I are fixedly connected at equal intervals on the circumferential inner wall of the vessel body. The reaction vessel for recovering palladium from solid waste disclosed in this utility model has the effect of optimizing mixing efficiency while ensuring the thorough dissolution of palladium, avoiding the waste of palladium metal.

Description

Technical Field

[0001] This utility model relates to the field of palladium recovery technology, and in particular to a reaction vessel for recovering palladium from solid waste. Background Technology

[0002] Aqua regia is a highly corrosive liquid composed of concentrated hydrochloric acid and concentrated nitric acid in a 3:1 ratio, capable of dissolving many metals. When recovering palladium from solid waste, the pulverized material needs to be mixed with aqua regia, utilizing its high oxidizing and acidic properties to decompose the palladium. Generally, during palladium recovery, a reaction vessel is used to heat and assist in mixing the palladium and aqua regia mixture.

[0003] However, since the crushed material will settle at the bottom of the mixing vessel during the initial mixing stage, the accumulated material cannot be completely mixed and reacted with aqua regia, which will directly affect the dissolution efficiency or lead to the waste of palladium metal. Utility Model Content

[0004] This utility model discloses a reaction vessel for recovering palladium from solid waste, aiming to solve the technical problem that the crushed material in the initial stage of mixing will settle at the bottom of the mixing vessel, which will prevent the accumulated material from being completely mixed and reacted with aqua regia, directly affecting the dissolution efficiency or causing the waste of palladium metal.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reaction vessel for recovering palladium from solid waste includes a vessel body, a stirring mechanism, a filtering mechanism, a protective mechanism, and a transfer tank. The stirring mechanism includes a support shaft 1. A motor is fixedly connected to the top outer wall of the vessel body, and the output end of the motor passes through the vessel body and is fixedly connected to the support shaft 1. Multiple stirring blades 1 and bearing sleeves are fixedly connected at equal intervals on the outer circumference of the support shaft 1, and the bearing sleeves are located below the stirring blades 1. A support shaft 2 is rotatably connected in each bearing sleeve, and multiple stirring blades 2 are fixedly connected at equal intervals on the outer circumference of the support shaft 2. Multiple push rods 1 are fixedly connected at equal intervals on the inner circumference of the vessel body.

[0007] A sealed bearing is fixedly connected to the inner wall of the bottom end of the vessel body, and a support shaft is rotatably connected to the sealed bearing. A feed inlet is fixedly connected to the inner wall of the top end of the vessel body, and a discharge outlet is fixedly connected to the inner wall of the bottom end of the vessel body. A valve is fixedly connected to the discharge outlet.

[0008] The bottom outer wall of the vessel is fixedly connected to a transition chamber, and the bottom outer wall of the transition chamber is fixedly connected to multiple base frames. The turnover bucket is placed directly below the filtration mechanism, and the turnover bucket is also located inside the protective mechanism.

[0009] By incorporating a stirring mechanism, during the mixing process, as the first support shaft rotates, the second stirring blades contact the first push rod, causing multiple second stirring blades to rotate along the second support shaft. This lifts up the pulverized material deposited at the bottom of the vessel, ensuring uniform mixing of all pulverized material with aqua regia. This optimizes mixing efficiency while ensuring thorough palladium dissolution and avoids waste of palladium metal.

[0010] In a preferred embodiment, the filtration mechanism includes a hemispherical outer frame fixedly connected to the inner wall of the bottom end of the transition chamber, a hemispherical filter support movably connected to the inner wall of the hemispherical outer frame, and a filter fixedly connected to the inner wall of the hemispherical filter support.

[0011] The bottom end of the support shaft 1 is fixedly connected to the top end of the transition chamber with an annular bracket 2, and multiple abutment rods 2 are fixedly connected to the bottom outer wall of the annular bracket 2 at equal intervals, with the height of the multiple abutment rods 2 increasing progressively.

[0012] The top outer wall of the hemispherical filter support is fixedly connected to an annular top plate, and the bottom ends of multiple abutment rods 2 simultaneously abut against the top outer wall of the annular top plate.

[0013] With a filtration mechanism, during the filtration process, the synchronous rotation of the first support shaft drives multiple rods of varying lengths to move along the top of the annular top plate. Under the limiting action of the outer frame of the hemispherical body, the hemispherical filter screen support can be moved to shake within the outer frame of the hemispherical body, thereby optimizing the filtration efficiency of insoluble matter.

[0014] In a preferred embodiment, the protective mechanism includes multiple ring-shaped brackets, multiple waterproof sheets, hooks, and support rods;

[0015] The annular bracket at the top is fixedly connected to the bottom outer wall of the transition chamber, and multiple waterproof cloths are respectively fixedly connected between two adjacent annular brackets.

[0016] A hanging bracket is fixedly connected to one side of the outer wall of the annular bracket at the bottom end, and the hook is movably sleeved on the hanging bracket;

[0017] The bottom outer wall of the transition chamber is fixedly connected to a connecting frame, and the support rod is fixedly connected to the outer wall of the connecting frame. The hook is movably engaged with the outer periphery of the support rod.

[0018] By incorporating a protective mechanism that allows multiple ring supports and waterproof cloth to be lowered, palladium solution can be prevented from splashing onto workers and causing injury when it is filtered by the filtration mechanism and enters the transfer tank, thus providing a safe working environment for the staff.

[0019] As described above, a reaction vessel for recovering palladium from solid waste includes a vessel body, a stirring mechanism, a filtering mechanism, a protective mechanism, and a transfer tank. The stirring mechanism includes a support shaft I. A motor is fixedly connected to the outer wall of the top of the vessel body, and the output end of the motor passes through the vessel body and is fixedly connected to the support shaft I. Multiple stirring blades I and bearing sleeves are fixedly connected at equal intervals on the outer circumference of the support shaft I, with the bearing sleeves located below the stirring blades I. A support shaft II is rotatably connected inside each bearing sleeve, and multiple stirring blades II are fixedly connected at equal intervals on the outer circumference of the support shaft II. Multiple push rods I are fixedly connected at equal intervals on the inner circumference of the vessel body. The reaction vessel for recovering palladium from solid waste provided by this utility model has the technical effect of optimizing mixing efficiency while ensuring the complete dissolution of palladium, avoiding the waste of palladium metal. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a reaction vessel for recovering palladium from solid waste, as proposed in this utility model.

[0021] Figure 2 This is a schematic diagram showing the internal structure of the reactor body for recovering palladium from solid waste according to the present invention.

[0022] Figure 3 This is a schematic diagram showing the filtration mechanism of a reactor for recovering palladium from solid waste, as proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the protective mechanism of a reaction vessel for recovering palladium from solid waste, as proposed in this utility model.

[0024] In the attached diagram: 1. Motor; 2. Feed inlet; 3. Kettle body; 4. Protective mechanism; 5. Transfer bucket; 6. Base frame; 7. Stirring mechanism; 8. Filtering mechanism; 9. Transition chamber; 10. Valve; 11. Discharge port; 401. Annular support one; 402. Waterproof cloth; 403. Hanging frame; 404. Hook; 405. Support rod; 406. Connecting frame; 701. Support shaft one; 702. Stirring blade one; 703. Support rod one; 704. Bearing sleeve; 705. Stirring blade two; 706. Support shaft two; 801. Annular support two; 802. Support rod two; 803. Annular top plate; 804. Hemispherical filter screen support; 805. Filter screen; 806. Hemispherical outer frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] The reaction vessel for recovering palladium from solid waste disclosed in this utility model is mainly used in palladium recovery scenarios.

[0027] Reference Figure 1 and Figure 2 A reaction vessel for recovering palladium from solid waste includes a vessel body 3, a stirring mechanism 7, a filtration mechanism 8, a protective mechanism 4, and a transfer tank 5. The stirring mechanism 7 includes a support shaft 701. A motor 1 is fixedly connected to the top outer wall of the vessel body 3, and the output end of the motor 1 passes through the vessel body 3 and is fixedly connected to the support shaft 701. Multiple stirring blades 702 and bearing sleeves 704 are fixedly connected at equal intervals on the circumferential outer wall of the support shaft 701, and the bearing sleeves 704 are located below the stirring blades 702. A second support shaft 706 is rotatably connected inside each bearing sleeve 704, and multiple second stirring blades 705 are fixedly connected at equal intervals on the circumferential outer wall of the second support shaft 706. Multiple second stirring blades 705 are fixedly connected at equal intervals on the circumferential inner wall of the vessel body 3. A push rod 703 is used to mix aqua regia and palladium metal powder in the vessel body 3. The palladium metal powder will be deposited on the bottom inner wall of the vessel body 3 until it is completely dissolved in the aqua regia. During the mixing process, the multiple stirring blades 702 can promote the mixing efficiency of aqua regia and palladium metal powder. During the rotation of the support shaft 701, as the stirring blades 705 come into contact with the push rod 703, the multiple stirring blades 705 can be driven to rotate along the support shaft 706, lifting the powder deposited at the bottom of the vessel body 3, so as to ensure that all the powder is evenly mixed with aqua regia. This optimizes the mixing efficiency and ensures the thorough dissolution of palladium, avoiding the waste of palladium metal.

[0028] Reference Figure 1 and Figure 3 In a preferred embodiment, a sealed bearing is fixedly connected to the inner wall of the bottom end of the vessel body 3, and the support shaft 701 is rotatably connected to the sealed bearing. The inner wall of the top end of the vessel body 3 is fixedly connected to the feed inlet 2, and the inner wall of the bottom end of the vessel body 3 is fixedly connected to the discharge outlet 11. A valve 10 is fixedly connected to the discharge outlet 11.

[0029] Reference Figure 1 and Figure 3 In a preferred embodiment, a transition chamber 9 is fixedly connected to the bottom outer wall of the vessel body 3, and a plurality of base frames 6 are fixedly connected to the bottom outer wall of the transition chamber 9. The turnover bucket 5 is placed directly below the filtration mechanism 8, and the turnover bucket 5 is also located inside the protective mechanism 4.

[0030] Reference Figure 3 In a preferred embodiment, the filtration mechanism 8 includes a hemispherical outer frame 806 fixedly connected to the inner wall of the bottom end of the transition chamber 9, a hemispherical filter support 804 movably connected to the inner wall of the hemispherical outer frame 806, and a filter 805 fixedly connected to the inner wall of the hemispherical filter support 804.

[0031] Reference Figure 3 In a preferred embodiment, the bottom end of the support shaft 701 passes through the top end of the transition chamber 9 and is fixedly connected to an annular bracket 801. The bottom outer wall of the annular bracket 801 is equidistantly surrounded and fixedly connected to a plurality of abutment rods 802, and the height of the plurality of abutment rods 802 is arranged in an increasing manner.

[0032] Reference Figure 3 In a preferred embodiment, an annular top plate 803 is fixedly connected to the top outer wall of the hemispherical filter support 804, and the bottom ends of multiple abutment rods 802 simultaneously abut against the top outer wall of the annular top plate 803. When palladium water enters the hemispherical filter support 804 from the outlet 11, the filter screen 805 can filter out the insoluble substances remaining in the palladium water, thereby avoiding the transfer of palladium water to the filtration device and realizing direct filtration. During the process, the synchronous rotation of the support shaft 701 drives multiple abutment rods 802 of different lengths to move along the top of the annular top plate 803, which can drive the hemispherical filter support 804 to shake inside the hemispherical outer frame 806 under the limiting action of the hemispherical outer frame 806, thereby optimizing the filtration efficiency of insoluble substances.

[0033] Reference Figure 4 In a preferred embodiment, the protective mechanism 4 includes a plurality of annular brackets 401, a plurality of waterproof sheets 402, hooks 404, and support rods 405.

[0034] Reference Figure 4 In a preferred embodiment, the annular bracket 401 at the top is fixedly connected to the bottom outer wall of the transition chamber 9, and multiple waterproof cloths 402 are respectively fixedly connected between two adjacent annular brackets 401.

[0035] Reference Figure 4 In a preferred embodiment, a hanger 403 is fixedly connected to one side of the outer wall of the annular bracket 401 located at the bottom, and a hook 404 is movably sleeved on the hanger 403.

[0036] Reference Figure 4 In a preferred embodiment, a connecting frame 406 is fixedly connected to the bottom outer wall of the transition chamber 9, and a support rod 405 is fixedly connected to the outer wall of the connecting frame 406. A hook 404 is movably engaged with the outer periphery of the support rod 405. Multiple annular brackets 401 and waterproof cloth 402 can be lowered in the protective mechanism 4 to form a cylindrical protective cover covering the outer periphery of the turnover barrel 5. Thus, when palladium water is filtered by the filtration mechanism 8 and enters the turnover barrel 5, palladium water can be prevented from splashing onto workers and causing injury, providing a safe working environment for the workers.

[0037] Working principle: When aqua regia and palladium metal powder are mixed in the vessel body 3, the palladium metal powder will be deposited on the bottom inner wall of the vessel body 3 until it is completely dissolved in the aqua regia. During the mixing process, the mixing efficiency of aqua regia and palladium metal powder is promoted by the setting of multiple stirring blades 702. During the rotation of the support shaft 701, as the stirring blades 705 come into contact with the push rod 703, the multiple stirring blades 705 can be driven to rotate along the support shaft 706, lifting the powder deposited at the bottom of the vessel body 3, so as to ensure that all the powder is evenly mixed with aqua regia. This optimizes the mixing efficiency and ensures the thorough dissolution of palladium, avoiding the waste of palladium metal.

[0038] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A reaction kettle for recovering palladium from solid waste, comprising a kettle body (3), a stirring mechanism (7), a filtering mechanism (8), a protection mechanism (4) and a turnover bucket (5), characterized in that, The stirring mechanism (7) includes a support shaft (701). A motor (1) is fixedly connected to the top outer wall of the vessel body (3), and the output end of the motor (1) passes through the vessel body (3) and is fixedly connected to the support shaft (701). Multiple stirring blades (702) and bearing sleeves (704) are fixedly connected at equal intervals on the outer circumference of the support shaft (701). The bearing sleeves (704) are located below the stirring blades (702). A support shaft (706) is rotatably connected in each bearing sleeve (704). Multiple stirring blades (705) are fixedly connected at equal intervals on the outer circumference of the support shaft (706). Multiple push rods (703) are fixedly connected at equal intervals on the inner circumference of the vessel body (3).

2. The reaction kettle for recovering palladium from solid waste according to claim 1, wherein A sealed bearing is fixedly connected to the inner wall of the bottom end of the vessel body (3), and the support shaft (701) is rotatably connected to the sealed bearing. The inner wall of the top end of the vessel body (3) is fixedly connected to the feed inlet (2), and the inner wall of the bottom end of the vessel body (3) is fixedly connected to the discharge outlet (11). A valve (10) is fixedly connected to the discharge outlet (11).

3. The reactor for recovering palladium from solid waste according to claim 1, wherein The bottom outer wall of the vessel body (3) is fixedly connected to a transition chamber (9), and the bottom outer wall of the transition chamber (9) is fixedly connected to multiple base frames (6). The turnover bucket (5) is placed directly below the filtration mechanism (8), and the turnover bucket (5) is also located inside the protective mechanism (4).

4. The reaction kettle for recovering palladium from solid waste according to claim 3, wherein The filtration mechanism (8) includes a hemispherical outer frame (806) fixedly connected to the inner wall of the bottom end of the transition chamber (9), a hemispherical filter support (804) movably connected to the inner wall of the hemispherical outer frame (806), and a filter (805) fixedly connected to the inner wall of the hemispherical filter support (804).

5. The reactor for recovering palladium from solid waste according to claim 4, wherein The bottom end of the support shaft (701) passes through the top end of the transition chamber (9) and is fixedly connected to the annular support (801). The bottom outer wall of the annular support (801) is equidistantly surrounded and fixedly connected to multiple abutment rods (802), and the height of the multiple abutment rods (802) is arranged in an increasing manner.

6. The reactor for recovering palladium from solid waste according to claim 5, wherein The top outer wall of the hemispherical filter support (804) is fixedly connected to an annular top plate (803), and the bottom ends of multiple abutment rods (802) simultaneously abut against the top outer wall of the annular top plate (803).

7. The reactor for recovering palladium from solid waste according to claim 1, wherein The protective mechanism (4) includes multiple ring brackets (401), multiple waterproof cloths (402), hooks (404), and support rods (405).

8. The reactor for recovering palladium from solid waste according to claim 7, wherein The annular support (401) at the top is fixedly connected to the bottom outer wall of the transition chamber (9), and multiple waterproof cloths (402) are fixedly connected between two adjacent annular supports (401).

9. The reactor for recovering palladium from solid waste according to claim 8, wherein A hanger (403) is fixedly connected to one side of the outer wall of the annular bracket (401) located at the bottom, and a hook (404) is movably sleeved on the hanger (403).

10. The reactor for recovering palladium from solid waste according to claim 9, wherein The bottom outer wall of the transition chamber (9) is fixedly connected to a connecting frame (406), and the support rod (405) is fixedly connected to the outer wall of the connecting frame (406). The hook (404) is movably engaged with the outer periphery of the support rod (405).

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