A silver powder washing device

Abstract

The utility model discloses a silver powder washing device, include: reation kettle body, its top end is provided with liquid inlet pipe and feed port respectively, and the bottom of reation kettle body is provided with the discharge gate, still include: stirring subassembly, it is rotatablely connected in reation kettle body through drive motor, telescopic liquid outlet pipe, one end intercommunication is provided in the top end of reation kettle body, and the other end is connected with external water pump, the utility model discloses a kind of silver powder washing device, solved the problem of current silver powder with supernatant discharge loss.

Description

Technical Field

[0001] This utility model relates to the field of washing technology, specifically a silver powder washing device. Background Technology

[0002] In the electrolytic silver smelting process, when silver powder is deposited, metallic impurities such as copper, antimony, bismuth, and lead are also deposited on the cathode plate. These impurities affect the purity of the electrolytic silver, and consequently, the quality of the silver ingots. Therefore, the electrolytic silver powder must be washed to remove impurities and achieve purification.

[0003] In the domestic precious metal smelting industry, after washing silver powder, a hose is inserted into the liquid. First, the air in the hose is manually expelled by mouth to fill the hose with liquid and create negative pressure. Then the hose is released to allow the clear liquid above to flow into the waste liquid collection container. However, the hose is not fixed and the liquid level is judged manually, which can easily cause silver powder to be discharged through the hose or the hose position to be constantly changed, resulting in low overall efficiency.

[0004] To address the aforementioned issues, existing technologies, such as application number CN201820010770.8, describe a silver powder washing device. This device uses a drive unit to move stirring blades on a stirring shaft to wash the silver powder inside the reactor. The device has one or more outlet pipes on the side wall of the reactor shell, evenly distributed at different heights. However, the device has the following drawbacks: while multiple outlet pipes at different heights can accommodate different liquid levels, in actual operation, frequent switching of valves at different heights is required, increasing the number of steps. Furthermore, if valve switching is not timely or the operation is improper, silver powder may be discharged with the supernatant, resulting in loss. Utility Model Content

[0005] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0006] To achieve these objectives and other advantages according to this utility model, a silver powder washing device is provided, comprising: a reaction vessel body, the top of which is respectively connected to an inlet pipe and a feed port, and the bottom of the reaction vessel body is provided with a discharge port, and further comprising:

[0007] The stirring assembly is rotatably connected to the reactor body via a drive motor;

[0008] The retractable liquid outlet pipe has one end connected to the top of the reactor body and the other end connected to an external water pump.

[0009] Preferably, there are two sets of feed inlets symmetrically arranged about the liquid inlet pipe;

[0010] A drain pipe is provided on the top surface of the reactor body, and the drain pipe is C-shaped with a high central axis and low ends.

[0011] The liquid inlet pipe is connected to the higher end of the central axis of the drainage pipe, and the two sets of feed inlets are respectively connected to the lower side near the outlet end of the drainage pipe.

[0012] Preferably, the structure of the stirring assembly includes:

[0013] A rotating shaft is mounted inside the reactor via bearings, and one end is connected to the output of a drive motor.

[0014] The R-shaped frame-type stirring paddle is fixedly installed in the upper middle half of the rotating shaft;

[0015] An anchor-type agitator is fixedly installed on the lower half of the rotating shaft, and the blades of the anchor-type agitator are close to the inner wall of the reactor body.

[0016] Preferably, a filter ball is installed at one end of the liquid outlet pipe inside the reactor body;

[0017] The rotary table housing is fixedly installed on the top surface of the reactor body;

[0018] A storage tray is rotatably mounted inside a turntable housing via a central shaft; the liquid outlet pipe is wound around the storage tray, and the other end of the liquid outlet pipe passes through the turntable housing and is connected to an external water pump.

[0019] The roulette wheel is fixedly connected to the central axis of the storage tray.

[0020] Preferably, an L-shaped fixing block is hinged to the turntable housing, and a protruding limiting block is symmetrically provided on the bottom surface of the L-shaped fixing block, and the distance between the two sets of limiting blocks is adapted to the distance between the notches of the turntable.

[0021] Preferably, a support frame is provided on the outside of the reactor body.

[0022] This utility model has at least the following beneficial effects:

[0023] This device effectively washes the silver powder in the reactor by means of a stirring assembly, and extracts the turbid washing liquid from the upper layer through a retractable outlet pipe, ensuring that the silver powder is thoroughly washed and greatly reducing the loss of silver powder due to liquid extraction.

[0024] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0026] Figure 2This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 3 For the present utility model Figure 1 Enlarged view at point A;

[0028] Figure 4 For the present utility model Figure 2 Enlarged view at point B;

[0029] Figure 5 This is a bottom view of the cross-sectional profile of the drainage tube of this utility model;

[0030] Figure 6 This is a top view of the horizontal cross-section of the drainage tube of this utility model;

[0031] Figure 7 This is a schematic diagram of the L-shaped fixing block of this utility model being opened upwards;

[0032] The diagram is labeled as follows: 1. Reactor body, 11. Liquid inlet pipe, 12. Feed inlet, 13. Discharge outlet, 14. Support frame, 2. Stirring assembly, 21. Rotating shaft, 22. Frame-type stirring paddle, 221. Rectangular frame, 222. Parallel horizontal paddle, 23. Anchor-type stirring paddle, 3. Drive motor, 4. Liquid outlet pipe, 5. Water pump, 6. Transparent observation window, 7. Drainage pipe, 71. High end of the central shaft, 72. Outlet end, 8. Filter ball, 9. Wheel, 90. Notch, 91. Turntable shell, 92. Collection tray, 93. Central shaft, 94. L-shaped fixing block, 95. Limiting block. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0034] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0035] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] The following is a detailed description of this novel experimental device with reference to the accompanying drawings:

[0039] Figure 1-7 This invention discloses a silver powder washing device, comprising: a reaction vessel body 1, with an inlet pipe 11 and a feed inlet 12 respectively connected to its top end, and a discharge outlet 13 provided at the bottom of the reaction vessel body 1; and further comprising:

[0040] The stirring assembly 2 is rotatably connected inside the reactor body 1 via a drive motor 3;

[0041] The retractable liquid outlet pipe 4 has one end connected to the top of the reactor body 1 and the other end connected to an external water pump 5.

[0042] Working principle:

[0043] The operator injects a washing solution (such as water, ethanol, or a specific acid or alkali solution) into the reactor body 1 through the inlet pipe 11, and then adds the silver powder to be washed into the reactor body 1 through the feed port 12. At this time, the drive motor 3 is started by an external power supply, which causes the stirring component 2 to start operating and fully mix the silver powder with the washing solution.

[0044] After the stirring operation is completed, the drive motor 3 is stopped, the stirring component 2 stops rotating and remains stationary for a period of time until the silver powder and washing liquid in the reaction vessel 1 undergo solid-liquid separation. At this time, the operator adjusts the height of the liquid outlet pipe 4 so that the liquid outlet pipe 4 is lowered to a position above the boundary line between the silver powder and the washing liquid, and the upper turbid liquid (the used washing liquid) is extracted by starting the external water pump 5.

[0045] At this point, new washing liquid can be added and the stirring component 2 can be turned on to repeat the washing operation, or the washed silver powder can be discharged and collected from the bottom outlet 13.

[0046] To facilitate operators in adjusting the height of the liquid outlet pipe 4, a transparent observation window 6 is provided on the side of the reactor body 1.

[0047] In summary, this device effectively washes the silver powder in the reaction vessel 1 through the stirring component 2, and extracts the upper turbid washing liquid through the retractable liquid outlet pipe 4, ensuring that the silver powder is thoroughly washed and significantly reducing the loss of silver powder due to liquid extraction.

[0048] As described above, the feed inlet 12 is symmetrically arranged in two sets with respect to the liquid inlet pipe 11;

[0049] The top surface of the reactor body 1 is provided with a drain pipe 7, and the drain pipe 7 is C-shaped with a high central axis and low ends;

[0050] The liquid inlet pipe 11 is connected to the higher end 71 of the central axis of the drainage pipe 7, and the two sets of feed inlets 12 are respectively connected to the lower side near the outlet end 72 of the drainage pipe 7.

[0051] Working principle:

[0052] The operator first injects the washing liquid into the higher end 71 of the central axis of the drain pipe 7 through the inlet pipe 11. At this time, the washing liquid flows along the C-shaped drain pipe 7 from the higher end 71 to the lower end 72 at both ends. The operator then pours the silver powder into the drain pipe through the two sets of symmetrical feed ports 12.

[0053] At this time, the silver powder will come into full contact with the washing liquid filling the guide tube 7, and the mixed material will fall into the reactor body 1 from the outlet end 72 of the guide tube 7.

[0054] In summary, since the silver powder and washing liquid have been initially mixed in the inlet pipe 7, the stirring component 2 does not need to spend too much time and energy to achieve uniform mixing after entering the reaction vessel body 1. This improves efficiency and reduces the operating time of the stirring component 2, thus saving energy.

[0055] Meanwhile, the two sets of symmetrically arranged feed inlets 12 improve the feeding efficiency and ensure that the silver powder enters the guide pipe 7 evenly, avoiding localized insufficient mixing caused by uneven feeding.

[0056] As described above, the structure of the stirring assembly 2 includes:

[0057] The rotating shaft 21 is mounted inside the reactor body 1 via bearings, and one end is connected to the output end of the drive motor 3;

[0058] The rectangular-frame stirring paddle 22 in the shape of a Chinese character "ri" is fixedly installed in the upper middle part of the rotating shaft 21;

[0059] The anchor-shaped stirring paddle 23 is fixedly installed in the lower half of the rotating shaft 21, and the blades of the anchor-shaped stirring paddle 23 are close to the inner wall of the reaction kettle body 1.

[0060] Working principle:

[0061] After the operator starts the driving motor 3 through an external power source, the output end drives the rotating shaft 21 to rotate, and then the rectangular-frame stirring paddle 22 and the anchor-shaped stirring paddle 23 fixed on the rotating shaft 21 rotate synchronously.

[0062] The rectangular-frame stirring paddle 22 is in the upper half area of the reaction kettle body 1, which can push the material to do circular motion in horizontal and vertical directions, forming a strong "overall convection", suitable for promoting the mixing of materials in the upper middle area. Also, because the rectangular-frame stirring paddle 22 in the stirring component 2 is in the shape of a Chinese character "ri" (composed of a rectangular frame 221 and internal parallel cross paddles 222), the parallel cross paddles 222 on the inner wall can form a stirring space with multi-region cutting, accelerating the dissolution of impurities while reducing the agglomeration of silver powder and improving the washing uniformity.

[0063] Moreover, since the bottom of the reaction kettle body 1 is the area where silver powder is prone to sedimentation, the blades of the anchor-shaped stirring paddle 23 are close to the inner wall of the reaction kettle, generating a scraping effect during rotation to avoid bottom deposition. At the same time, the rotation of the anchor-shaped stirring paddle 23 can generate an upward thrust to send the lower-layer material back into the area of the rectangular-frame stirring paddle 22, ultimately achieving uniform washing of silver powder in the reaction kettle body 1.

[0064] Among them, ① compared with some stirring blades with high rotation speed and large shear force, the rotation speed of the rectangular-frame stirring paddle 22 is relatively low, and the generated shear force is relatively gentle. During the stirring process, for silver powder products with high requirements for particle integrity, the original shape of silver powder particles can be maintained to the greatest extent while ensuring the washing effect.

[0065] ② To ensure the sealing performance inside the reaction kettle body 1, the connection position between the rotating shaft 21 and the reaction kettle body 1 through the bearing adopts a double-sealing structure. On the basis of the original sealing ring, an additional lip seal is added. The lip of the lip seal fits tightly with the rotating shaft 21 to form a dynamic seal, further improving the sealing performance.

[0066] In the above solution, a filter ball 8 is provided at one end of the liquid outlet pipe 4 located inside the reaction kettle body 1;

[0067] The turntable housing 91 is fixedly installed on the top surface of the reaction kettle body 1;

[0068] The storage tray 92 is rotatably mounted inside the turntable housing 91 via the central shaft 93; the liquid outlet pipe 4 is wound around the storage tray 92, and the other end of the liquid outlet pipe 4 passes through the turntable housing 91 and is connected to the external water pump 5.

[0069] The roulette wheel 9 is fixedly connected to the central axis 93 of the storage tray 92.

[0070] Working principle:

[0071] After the silver powder and washing liquid have settled, the operator manually rotates the wheel 9, causing the wheel 9 to drive the storage tray 92 installed in the turntable housing 91 to rotate synchronously, thereby realizing the opening and closing of the liquid outlet pipe 4.

[0072] When the wheel 9 is rotated in the forward direction, the liquid outlet pipe 4 begins to descend inside the reactor body 1 until the filter ball 8 is suspended above the boundary between the silver powder and the washing liquid (the operator can adjust this through the transparent observation window 6).

[0073] At this time, the water pump 5 is started by the external power supply. The washing liquid enters the outlet pipe 4 through the filter ball 8, so as to quickly extract the washing wastewater in the reaction vessel 1. The silver powder is intercepted by the filter ball 8 to prevent the silver powder from being discharged with the washing liquid and causing loss.

[0074] After extraction is completed, the operator rotates the wheel 9 in the opposite direction to make the liquid outlet tank wrap around the recovery tray 92 again until the filter ball 8 returns to its initial position, higher than the top surface of the frame-type stirring paddle 22, to avoid the liquid outlet pipe 4 getting tangled with the stirring assembly 2 during operation, which could damage the device.

[0075] Among them, ① the mechanical structure of the wheel 9 and the storage tray 92 of this device does not require electric drive, making it easy to operate and low in maintenance cost.

[0076] ② In actual use, the liquid outlet pipe 4 should be made of a material that is resistant to acid and alkali corrosion and has good flexibility (such as stainless steel hose, PTFE-lined composite pipe, etc.).

[0077] ③ In actual use, the connection between the turntable shell 91 and the reactor body 1 can be preferably provided with double sealing (sealing ring and sealing packing, etc.) to ensure the sealing of the device.

[0078] In the above scheme, an L-shaped fixing block 94 is hinged on the turntable housing 91, and a protruding limiting block 95 is symmetrically provided on the bottom surface of the L-shaped fixing block 94, and the distance between the two sets of limiting blocks 95 is adapted to the distance between the notch 90 of the turntable 9.

[0079] Working principle:

[0080] When the filter ball 8 is in the initial position, the operator presses down on the L-shaped fixing block 94 so that the two sets of limiting blocks 95 are respectively embedded in the two adjacent notches 90 of the wheel 9, forming a mechanical lock for clamping, thereby preventing the drain pipe wrapped on the collection tray 92 from loosening and slipping down and interfering with the operation of the stirring assembly 2.

[0081] After settling, the operator pulls up the hinged L-shaped fixing block 94, disengaging the limiting block 95 from the notch 90, allowing the wheel 9 to be used. When the filter ball 8 is suspended above the boundary between the silver powder and the washing liquid, the operator presses down the L-shaped fixing block 94, causing the two sets of limiting blocks 95 to engage with the two adjacent notches 90 on the wheel 9, forming a mechanical locking mechanism. At this point, the wheel 9 is fixed and cannot continue to rotate, preventing accidental contact with the wheel 9 from causing the outlet pipe 4 to shift.

[0082] As described above, a support frame 14 is provided on the outer side of the reactor body 1.

[0083] Working principle:

[0084] The support frame 14 is fixed to the ground by anchor bolts to form a stable rectangular support structure, thereby avoiding direct contact between the bottom of the reactor body 1 and the ground, which can reduce the damage to the reactor body 1 caused by factors such as ground moisture.

[0085] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A silver powder washing apparatus comprising: A reaction vessel body, with a liquid inlet pipe and a feed inlet respectively connected to its top, and a discharge outlet provided at the bottom of the reaction vessel body, is characterized by further comprising: The stirring assembly is rotatably connected to the reactor body via a drive motor; The retractable liquid outlet pipe has one end connected to the top of the reactor body and the other end connected to an external water pump.

2. The silver powder washing apparatus according to claim 1, characterized by The feed inlet is symmetrically arranged in two sets with respect to the liquid inlet pipe; A drain pipe is provided on the top surface of the reactor body, and the drain pipe is C-shaped with a high central axis and low ends. The liquid inlet pipe is connected to the higher end of the central axis of the drainage pipe, and the two sets of feed inlets are respectively connected to the lower side near the outlet end of the drainage pipe.

3. The silver powder washing apparatus according to claim 1, wherein The structure of the stirring assembly includes: A rotating shaft is mounted inside the reactor via bearings, and one end is connected to the output of a drive motor. The R-shaped frame-type stirring paddle is fixedly installed in the upper middle half of the rotating shaft; An anchor-type agitator is fixedly installed on the lower half of the rotating shaft, and the blades of the anchor-type agitator are close to the inner wall of the reactor body.

4. The silver powder washing apparatus according to claim 1, wherein A filter ball is installed at one end of the liquid outlet pipe inside the reactor body; The rotary table housing is fixedly installed on the top surface of the reactor body; A storage tray is rotatably mounted inside a turntable housing via a central shaft; the liquid outlet pipe is wound around the storage tray, and the other end of the liquid outlet pipe passes through the turntable housing and is connected to an external water pump. The roulette wheel is fixedly connected to the central axis of the storage tray.

5. The silver powder washing apparatus according to claim 4, wherein An L-shaped fixing block is hinged to the turntable housing, and a protruding limiting block is symmetrically provided on the bottom surface of the L-shaped fixing block. The distance between the two sets of limiting blocks is adapted to the distance between the notches of the turntable.

6. The silver powder washing apparatus according to claim 1, wherein A support frame is provided on the outside of the reaction vessel.

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