An apparatus for recovering Ag from wet sludge in smelting

Abstract

This invention discloses an apparatus for recovering Ag from wet sludge in smelting processes, relating to the field of wet sludge recovery technology. The apparatus includes a processing frame and a feeding device. A dual-shaft motor is fixedly installed above the processing frame, with drive shafts fixedly installed at both the upper and lower output ends of the motor. An installation plate is fixedly installed inside the processing frame. The feeding device includes a feeding box, a driven shaft, a rotating rod, and a feeding pipe. The feeding box is fixedly inserted through the upper inner and outer walls of the processing frame. The driven shaft rotatably inserts through the inner and outer walls of the feeding box. The rotating rod is fixedly installed on the surface of the driven shaft. The feeding pipe is fixedly inserted through the lower inner and outer walls of the feeding box and the upper inner and outer walls of the processing frame. This apparatus for recovering Ag from wet sludge in smelting processes can effectively break up the clumps of wet sludge inside the feeding box, while simultaneously achieving stable and uniform feeding of the wet sludge.

Description

Technical Field

[0001] This invention relates to the field of wet sludge recycling technology, specifically to an apparatus for recycling Ag from wet sludge in smelting processes. Background Technology

[0002] Equipment for recovering silver (Ag) from wet smelting sludge is typically designed to recover silver from wet smelting sludge and use it for recycling or final product preparation.

[0003] Patent publication number CN217869016U relates to an apparatus for recovering Ag from wet sludge during smelting. The apparatus includes a fixed frame and a connecting shaft. A feed hopper is fixedly connected to the top of the fixed frame, and a fixed column is fixedly connected to one side of the top of the fixed frame. A limit block is fixedly connected to the top and outside of the fixed column, and a sleeve block is movably fitted onto the outside of the fixed column. A fixed frame is fixedly connected between the bottom ends of the fixed frame. This patent, by incorporating a drive motor, mounting groove, connecting shaft, connecting seat, circular groove, fixed sleeve, feed inlet, and smelting cylinder, allows the connecting shaft to rotate when the drive motor is turned on. Simultaneously, the fixed sleeve rotates outside the feed inlet, and the connecting seat rotates inside the circular groove. This rotation of the smelting cylinder ensures more uniform heating and better recovery quality, solving the problem of uneven heating during smelting that affects recovery quality.

[0004] The aforementioned patent, by incorporating a drive motor, mounting groove, connecting shaft, connecting seat, circular groove, fixing sleeve, feed port, and smelting cylinder, achieves a more uniform smelting effect and solves the problem of uneven heating. However, during the feeding process, when wet sludge enters the smelting cylinder in large chunks, it causes splashing of the reaction liquid, resulting in some wet sludge splashing onto the inner wall of the smelting cylinder and making it difficult to treat. Therefore, a device for recovering Ag from wet sludge in smelting with stable feeding is designed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an apparatus for recovering Ag from wet sludge in smelting processes, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an apparatus for recovering Ag from wet sludge in smelting, comprising a processing frame, a feeding device, and a stirring device; wherein a dual-shaft motor is fixedly installed above the processing frame, and drive shafts are fixedly installed at both the upper and lower output ends of the dual-shaft motor; an mounting plate is fixedly installed inside the processing frame; wherein the feeding device comprises a feeding box, a driven shaft, a rotating rod, and a feeding pipe; the rotation of the motor's output end drives the upper drive shaft to rotate, the rotation of the upper drive shaft drives the driven shaft to rotate via a transmission belt, and the rotation of the driven shaft drives the rotating rod to rotate. The feed box is fixedly inserted through the upper inner and outer walls of the processing frame. The driven shaft rotates through the inner and outer walls of the feed box. The rotating rod is fixedly installed on the surface of the driven shaft. The feed pipe is fixedly inserted through the lower inner and outer walls of the feed box and the upper inner and outer walls of the processing frame. The driven shaft is connected to the upper drive shaft by a drive belt. The surface of the driven shaft is threaded. The rotation of the rotating rod can effectively break up the clumps of wet sludge inside the feed box. At the same time, the rotation of the driven shaft, through the thread on its surface, evenly and stably discharges the broken-up wet sludge into the interior of the processing frame, achieving stable and uniform feeding of the wet sludge.

[0007] According to the above technical solution, a spreading plate is slidably installed on the surface of the lower drive shaft, a receiving block is fixedly installed above the spreading plate, and a pressing block is fixedly installed on the top of the inner wall of the processing frame. The upper part of the receiving block is an arc surface one, and the lower part of the pressing block is an arc surface two. A spreading groove is provided on the surface of the spreading plate, and a spring is provided between the spreading plate and the lower drive shaft. The spreading plate shakes up and down to evenly distribute the wet sludge into the interior of the processing frame, avoiding excessive accumulation of wet sludge in the same position, which would lead to incomplete reaction and improve the recycling efficiency.

[0008] According to the above technical solution, the stirring device includes a stirring rod, a sliding rod, a material-dispensing plate, and a receiving rod. The rotation of the lower drive shaft drives the stirring rod to rotate, which in turn drives the sliding rod to rotate. The sliding rod rotates and contacts the receiving rod, moving under its action. The stirring rod is fixedly installed on the surface of the lower drive shaft. The sliding rod slides through the left and right walls of the stirring rod. The material-dispensing plate is fixedly installed at the end of the sliding rod near the lower drive shaft. The receiving rod is slidably installed on the inner wall of the processing frame. A spring-loaded spring is provided between the sliding rod and the stirring rod. The end of the receiving rod near the sliding rod is formed into an arc surface. The movement of the material-dispensing plate can effectively dispense the wet sludge accumulated on the surface of the mounting plate, making the wet sludge contact with the reactant more fully and improving the recovery efficiency.

[0009] According to the above technical solution, an air frame is fixedly inserted through the surface of the stirring rod, a sliding plate is slidably installed inside the air frame, an L-shaped rod is fixedly installed on the surface of the sliding plate, the L-shaped rod slidably penetrates the inner and outer walls of the air frame, and the end of the L-shaped rod away from the sliding plate is fixedly connected to the sliding rod. A one-way valve one and a one-way valve two are provided on the surface of the sliding plate. The one-way valve one and the one-way valve two are of different sizes, so that the speed at which the sliding plate resets is slower than the speed at which it is squeezed, thereby avoiding the sliding rod from being in constant contact with the receiving rod, reducing wear, and extending the service life of the equipment.

[0010] According to the above technical solution, it also includes a discharge device and a separation device. The separation device includes a conical disc, a sliding frame, and a connecting rod. The output end of the motor reverses to drive the lower transmission shaft to reverse. The rotation of the lower transmission shaft will drive the receiving rod to move downward through the stirring rod and the sliding rod. The conical disc is fixedly installed below the lower transmission shaft. A discharge groove is opened on the surface of the mounting plate. The sliding frame is slidably installed on the surface of the discharge groove. The connecting rod is fixedly installed below the receiving rod. The end of the connecting rod away from the receiving rod is fixedly connected to the sliding frame. A spring is provided between the receiving rod and the inner wall of the processing frame. The sliding frame moves downward to disengage from the conical disc, allowing the material inside the processing frame to be discharged. At the same time, the receiving rod is reset under the action of the spring to achieve intermittent discharge of material, avoiding excessive discharge at one time, which would make solid-liquid separation difficult.

[0011] According to the above technical solution, a reciprocating screw is fixedly installed below the conical disc, a sleeve is slidably installed on the surface of the reciprocating screw, a connecting rod is fixedly installed on the surface of the sleeve, and a lifting plate is fixedly installed on the surface of the connecting rod. The reciprocating movement of the lifting plate can effectively clear the inside of the sliding frame, preventing metal particles and impurities inside the material from clogging the inside of the sliding frame, thereby affecting the discharge effect and improving the recycling efficiency.

[0012] According to the above technical solution, the separation device includes a moving rod, a separation disc, a receiving disc, a pressure plate, and a filter plate. The receiving disc is placed on the surface of the separation disc. The moving rod moves, causing the separation disc to move. The movement of the separation disc causes the receiving disc to move below the sliding frame. The moving rod is slidably installed at the bottom of the processing frame. The separation disc is fixedly installed at the end of the moving rod away from the processing frame. The receiving disc is fixedly installed above the separation disc. The pressure plate is slidably installed on the surface of the reciprocating screw. The filter plate is fixedly installed at the bottom of the receiving disc. A spring is provided between the pressure plate and the reciprocating screw. The separation disc and the processing frame are connected by a conduit. The conduit is elastic. A groove is provided on the surface of the moving rod. The lifting plate and the pressure plate move downward to squeeze the interior of the separation disc and pump the solution back into the interior of the processing frame through the conduit. At the same time, metal particles and impurities in the reactant are filtered out by the filter plate on the surface of the receiving disc, realizing solid-liquid separation in the solution and improving the recovery efficiency.

[0013] According to the above technical solution, a pull rod is fixedly installed on the surface of the moving rod, and a limit rod is slidably installed below the processing frame. A spring-loaded spring is provided between the limit rod and the processing frame. When the moving rod moves, it contacts and squeezes the limit rod, thus limiting its movement. This effectively maintains the stability of the receiving tray and the separation tray during the solid-liquid separation process.

[0014] This invention provides an apparatus for recovering Ag from wet sludge in smelting. It has the following beneficial effects:

[0015] (1) The device for recovering Ag from wet slurry in this smelting process starts the motor. The output end of the motor drives the driven shaft and rotating rod to rotate through the upper drive shaft and drive belt, so as to achieve uniform and stable transportation of wet slurry and avoid the wet slurry from clogging inside the feed box, thereby improving the recovery efficiency. At the same time, the lower drive shaft drives the spreading plate and the receiving block to contact the pressing block and generate up and down swing, so as to evenly discharge the wet slurry into the processing frame, avoid the accumulation of too much wet slurry in the same position, which would lead to incomplete reaction and improve the recovery efficiency.

[0016] (2) In this device for recovering Ag from wet sludge in smelting, the rotation of the lower drive shaft drives the stirring rod and the sliding rod to rotate and contact the receiving rod, and move under its action. The movement of the sliding rod drives the material feeding plate to move the reactant inside the processing frame, so as to avoid excessive wet sludge deposition at the bottom, which would lead to incomplete reaction and improve the recovery efficiency. At the same time, the movement of the sliding rod drives the L-shaped rod and the sliding plate to move and squeeze the air inside the air frame. The air is controlled by one-way valve one and one-way valve two to control the speed of the sliding rod rebound, so as to avoid the sliding rod from being in contact with the receiving rod, reduce wear, and extend the service life of the equipment.

[0017] (3) In this device for recovering Ag from wet sludge in smelting, after the reaction is completed, the motor is reversed, the lower drive shaft reverses to contact and squeeze the receiving rod to move downward. The receiving rod moves downward and drives the sliding frame to move downward through the connecting rod, so as to realize the intermittent discharge of the material and improve the recovery efficiency. At the same time, the conical disk rotates and drives the connecting rod and lifting rod to move back and forth through the reciprocating screw and sleeve, so as to avoid the metal particles and impurities inside the material from clogging the inside of the sliding frame, thereby affecting the discharge effect and improving the recovery efficiency.

[0018] (4) In this device for recovering Ag from wet sludge in smelting, the moving rod moves the separation plate and the receiving plate to the bottom of the sliding frame. The sliding frame moves downward and contacts the receiving plate. At the same time, the lifting plate moves downward and contacts the pressure plate, which in turn moves downward to pump the reactant inside the separation plate back into the processing frame through the conduit. Meanwhile, the metal particles in the reactant are filtered out through the filter plate at the bottom of the receiving plate, thus achieving solid separation in the reactant and improving the recovery efficiency. At the same time, the pull rod drives the moving rod to contact the squeezing limit rod and be limited during the movement, which can effectively maintain the stability of the receiving plate and the separation plate during the solid-liquid separation process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the position and structure of the feed box and driven shaft of the present invention;

[0022] Figure 4 This is a partial cross-sectional structural diagram of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged structural diagram of section A;

[0024] Figure 6 This is a schematic diagram of the position structure of the sliding frame and the receiving tray of the present invention;

[0025] Figure 7 The structure of this invention Figure 6 Enlarged schematic diagram of part B in the middle.

[0026] In the diagram: 1. Processing frame; 2. Drive shaft; 31. Feed box; 32. Driven shaft; 33. Rotating rod; 34. Feed pipe; 35. Spreading plate; 36. Receiving block; 37. Pressing block; 41. Stirring rod; 42. Sliding rod; 43. Feeding plate; 44. Receiving rod; 45. Air frame; 46. Sliding plate; 47. L-shaped rod; 51. Conical disc; 52. Sliding frame; 53. Connecting rod; 54. Reciprocating screw; 55. Sleeve; 56. Connecting rod; 57. Lifting plate; 61. Moving rod; 62. Separating disc; 63. Receiving disc; 64. Pressing plate; 65. Filter plate; 66. Pull rod; 67. Limiting rod; 7. Mounting plate. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-5 One embodiment of the present invention is: an apparatus for recovering Ag from wet sludge in smelting, comprising a processing frame 1, a feeding device, and a stirring device; wherein, a dual-shaft motor is fixedly installed above the processing frame 1, and drive shafts 2 are fixedly installed at the upper and lower output ends of the dual-shaft motor; an mounting plate 7 is fixedly installed inside the processing frame 1; wherein, the feeding device comprises a feeding box 31, a driven shaft 32, a rotating rod 33, and a feeding pipe 34; the rotation of the output end of the motor drives the upper drive shaft 2 to rotate, the rotation of the upper drive shaft 2 drives the driven shaft 32 to rotate via a transmission belt, the rotation of the driven shaft 32 drives the rotating rod 33 to rotate, and the feeding box 31 is fixedly installed through... The driven shaft 32 rotates through the inner and outer walls of the upper part of the processing frame 1, and the rotating rod 33 is fixedly installed on the surface of the driven shaft 32. The feed pipe 34 is fixedly installed through the inner and outer walls of the lower part of the feed box 31 and the inner and outer walls of the upper part of the processing frame 1. The driven shaft 32 is connected to the upper drive shaft 2 through the drive belt. The surface of the driven shaft 32 is threaded. The rotation of the rotating rod 33 can effectively break up the clumps of wet mud inside the feed box 31. At the same time, the rotation of the driven shaft 32, through the thread on its surface, evenly and stably discharges the broken wet mud into the interior of the processing frame 1, so as to achieve stable and uniform feeding of wet mud.

[0029] A spreading plate 35 is slidably mounted on the surface of the lower drive shaft 2. A receiving block 36 is fixedly mounted on the top of the spreading plate 35. A pressure block 37 is fixedly mounted on the top of the inner wall of the processing frame 1. The upper part of the receiving block 36 is an arc surface one, and the lower part of the pressure block 37 is an arc surface two. A spreading groove is provided on the surface of the spreading plate 35. A spring is provided between the spreading plate 35 and the lower drive shaft 2. The spreading plate 35 shakes up and down to evenly distribute the wet mud into the interior of the processing frame 1, avoiding the accumulation of too much wet mud in the same position, which would lead to incomplete reaction and improve the recycling efficiency.

[0030] The mixing device includes a stirring rod 41, a sliding rod 42, a material-dispensing plate 43, and a receiving rod 44. The rotation of the lower drive shaft 2 drives the stirring rod 41 to rotate, which in turn drives the sliding rod 42 to rotate. The sliding rod 42 rotates and contacts the receiving rod 44, moving under its action. The stirring rod 41 is fixedly installed on the surface of the lower drive shaft 2. The sliding rod 42 slides through the left and right walls of the stirring rod 41. The material-dispensing plate 43 is fixedly installed on the end of the sliding rod 42 near the lower drive shaft 2. The receiving rod 44 is slidably installed on the inner wall of the processing frame 1. A spring-loaded spring 2 is provided between the sliding rod 42 and the stirring rod 41. The end of the receiving rod 44 near the sliding rod 42 is opened into an arc surface 3. The movement of the material-dispensing plate 43 can effectively dispense the wet sludge accumulated on the surface of the mounting plate 7, making the wet sludge contact with the reactant more fully and improving the recovery efficiency.

[0031] An air frame 45 is fixedly inserted through the surface of the stirring rod 41. A sliding plate 46 is slidably installed inside the air frame 45. An L-shaped rod 47 is fixedly installed on the surface of the sliding plate 46. The L-shaped rod 47 slides through the inner and outer walls of the air frame 45. The end of the L-shaped rod 47 away from the sliding plate 46 is fixedly connected to the sliding rod 42. A one-way valve 1 and a one-way valve 2 are provided on the surface of the sliding plate 46. The one-way valve 1 and the one-way valve 2 are of different sizes, so that the reset speed of the sliding plate 46 is slower than the extrusion speed, thereby preventing the sliding rod 42 from being in constant contact with the receiving rod 44, reducing wear, and extending the service life of the equipment.

[0032] In this embodiment, when the motor is started, the output end of the motor rotates, driving the upper drive shaft 2 to rotate. The rotation of the upper drive shaft 2 drives the driven shaft 32 to rotate via the transmission belt. The rotation of the driven shaft 32 drives the rotating rod 33 to rotate. The rotation of the rotating rod 33 can effectively break up the clumps of wet sludge inside the feed box 31. At the same time, the rotation of the driven shaft 32, through the threads on its surface, evenly and stably discharges the broken wet sludge into the interior of the processing frame 1, achieving stable and uniform feeding of wet sludge and preventing wet sludge from clogging the inside of the feed pipe 34 and affecting the discharge. Simultaneously, the rotation of the motor output end drives the lower drive shaft 2 to rotate, which in turn drives the spreading plate 35 to rotate. The rotation of the spreading plate 35 drives the receiving block 36 to rotate. The receiving block 36 rotates and contacts the pressing block 37, causing it to shake up and down under its action. This causes the spreading plate 35 to shake up and down, evenly discharging the wet sludge into the interior of the processing frame 1, avoiding excessive accumulation of wet sludge in the same position, which would lead to incomplete reaction and improve the recycling efficiency.

[0033] The rotation of the lower drive shaft 2 drives the stirring rod 41 to rotate, which in turn drives the sliding rod 42 to rotate. The sliding rod 42 rotates and contacts the receiving rod 44, moving under its action. The movement of the sliding rod 42 drives the material-pushing plate 43 to move. The movement of the material-pushing plate 43 can effectively move the wet mud accumulated on the surface of the mounting plate 7, making the wet mud contact the reactant more fully and improving the recovery efficiency. At the same time, the movement of the sliding rod 42 drives the L-shaped rod 47 to move, which in turn drives the sliding plate 46 to move. The movement of the sliding plate 46 compresses the air inside the air frame 45, causing the air inside the air frame 45 to flow on both sides of the sliding plate 46 through one-way valve one and one-way valve two. At the same time, the flow rates discharged by one-way valve one and one-way valve two are different, making the reset speed of the sliding plate 46 slower than the compression speed, thereby avoiding continuous contact between the sliding rod 42 and the receiving rod 44, reducing wear, and extending the service life of the equipment.

[0034] Please see Figure 1-7 Based on the above embodiments, another embodiment of the present invention further includes a discharge device and a separation device. The separation device includes a conical disc 51, a sliding frame 52, and a connecting rod 53. The output end of the motor reverses to drive the lower transmission shaft 2 to reverse. The rotation of the lower transmission shaft 2 will drive the receiving rod 44 to move downward through the stirring rod 41 and the sliding rod 42. The conical disc 51 is fixedly installed below the lower transmission shaft 2. A discharge groove is opened on the surface of the mounting plate 7. The sliding frame 52 is slidably installed on the surface of the discharge groove. The connecting rod 53 is fixedly installed below the receiving rod 44. The end of the connecting rod 53 away from the receiving rod 44 is fixedly connected to the sliding frame 52. A spring is provided between the receiving rod 44 and the inner wall of the processing frame 1. The sliding frame 52 moves downward to disengage from the conical disc 51, so that the material inside the processing frame 1 is discharged. At the same time, the receiving rod 44 is reset under the action of the spring to achieve intermittent discharge of the material, avoiding excessive discharge at one time, which would make solid-liquid separation difficult.

[0035] A reciprocating screw 54 is fixedly installed below the conical disc 51. A sleeve 55 is slidably installed on the surface of the reciprocating screw 54. A connecting rod 56 is fixedly installed on the surface of the sleeve 55. A lifting plate 57 is fixedly installed on the surface of the connecting rod 56. The reciprocating movement of the lifting plate 57 can effectively clear the inside of the sliding frame 52, preventing metal particles and impurities inside the material from clogging the inside of the sliding frame 52, thereby affecting the discharge effect and improving the recycling efficiency.

[0036] The separation device includes a moving rod 61, a separation disc 62, a receiving disc 63, a pressure plate 64, and a filter plate 65. The receiving disc 63 is placed on the surface of the separation disc 62. The moving rod 61 moves, causing the separation disc 62 to move. The movement of the separation disc 62 causes the receiving disc 63 to move below the sliding frame 52. The moving rod 61 is slidably mounted on the bottom of the processing frame 1. The separation disc 62 is fixedly mounted on the end of the moving rod 61 away from the processing frame 1. The receiving disc 63 is fixedly mounted on top of the separation disc 63. The pressure plate 64 is slidably mounted on the surface of the reciprocating screw 54. Plate 65 is fixedly installed at the bottom of receiving tray 62. A spring is provided between pressure plate 64 and reciprocating screw 54. Separating tray 62 is connected to processing frame 1 through a conduit. The conduit is elastic. The surface of moving rod 61 is provided with a sliding groove. Lifting plate 57 and pressure plate 64 move downward to squeeze the inside of separating tray 62 and pump the solution in it back into processing frame 1 through the conduit. At the same time, metal particles and impurities in the reactant will be filtered out by filter plate 65 on the surface of receiving tray 63, realizing solid-liquid separation in the solution and improving recovery efficiency.

[0037] A pull rod 66 is fixedly installed on the surface of the moving rod 61, and a limit rod 67 is slidably installed below the processing frame 1. A spring-loaded spring 5 is provided between the limit rod 67 and the processing frame 1. When the moving rod 61 moves, it contacts and squeezes the limit rod 67, which moves and is limited, effectively maintaining the stability of the receiving tray 63 and the separation tray 62 during the solid-liquid separation process.

[0038] In this embodiment, after the wet sludge and reactant have fully reacted, the motor is reversed. The reverse rotation of the motor's output end drives the lower transmission shaft 2 to reverse as well. The rotation of the lower transmission shaft 2 causes the receiving rod 44 to move downwards via the stirring rod 41 and the sliding rod 42. The downward movement of the receiving rod 44 causes the connecting rod 53 to move downwards, which in turn causes the sliding frame 52 to move downwards. The downward movement of the sliding frame 52 disengages from the conical disk 51, allowing the material inside the processing frame 1 to be discharged. Simultaneously, the receiving rod 44 resets under the action of the spring 3, achieving intermittent discharge of the material. To avoid excessive discharge at once, which would make solid-liquid separation difficult, the lower drive shaft 2 rotates, causing the conical disc 51 to rotate. The rotation of the conical disc 51 drives the reciprocating screw 54 to rotate, which in turn drives the sleeve 55 to reciprocate. The reciprocating motion of the sleeve 55 drives the connecting rod 56 to reciprocate, which in turn drives the lifting plate 57 to reciprocate. The reciprocating motion of the lifting plate 57 effectively clears the inside of the sliding frame 52, preventing metal particles and impurities inside the material from clogging the inside of the sliding frame 52, thus affecting the discharge effect and improving the recycling efficiency.

[0039] The receiving tray 63 is placed on the surface of the separating tray 62. Then, the pull rod 66 is pushed to move. The movement of the pull rod 66 causes the moving rod 61 to move, which in turn causes the separating tray 62 to move. The moving tray 62 causes the receiving tray 63 to move below the sliding frame 52. The sliding frame 52 moves downward and contacts the receiving tray 63. The lifting plate 57 moves downward and contacts and squeezes the pressure plate 64 downward. The lifting plate 57 and the pressure plate 64 move downward and squeeze the interior of the separating tray 62, and the solution therein is pumped back into the interior of the processing frame 1 through the conduit. At the same time, the metal particles and impurities in the reactant are filtered out by the filter plate 65 on the surface of the receiving tray 63, realizing solid-liquid separation in the solution and improving the recovery efficiency. Meanwhile, the moving rod 61 moves and contacts the squeezing limit rod 67 and is limited, which can effectively maintain the stability of the receiving tray 63 and the separating tray 62 during the solid-liquid separation process.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for recovering Ag from wet sludge in smelting, comprising a processing frame (1), characterized in that: It also includes a feeding device, a mixing device, a discharging device, and a separating device; A dual-axis motor is fixedly installed above the processing frame (1), and a transmission shaft (2) is fixedly installed at the output ends of both the upper and lower ends of the dual-axis motor. An installation plate (7) is fixedly installed inside the processing frame (1). The feeding device includes a feeding box (31), a driven shaft (32), a rotating rod (33), and a feeding pipe (34). The feeding box (31) is fixedly inserted through the upper inner and outer walls of the processing frame (1). The driven shaft (32) rotates through the inner and outer walls of the feeding box (31). The rotating rod (33) is fixedly installed on the surface of the driven shaft (32). The feeding pipe (34) is fixedly inserted through the lower inner and outer walls of the feeding box (31). The feeding pipe (34) is fixedly inserted through the upper inner and outer walls of the processing frame (1). The driven shaft (32) is connected to the upper drive shaft (2) by a drive belt. The surface of the driven shaft (32) is threaded. The stirring device includes a stirring rod (41), a sliding rod (42), a feeding plate (43), and a receiving rod (44). The stirring rod (41) is fixedly installed on the surface of the lower drive shaft (2). The sliding rod (42) slides through the left and right walls of the stirring rod (41). The feeding plate (43) is fixedly installed at one end of the sliding rod (42) near the lower drive shaft (2). The receiving rod (44) is slidably installed on the inner wall of the processing frame (1). A spring is provided between the sliding rod (42) and the stirring rod (41). The receiving rod (44) is opened into an arc surface at one end near the sliding rod (42). The sliding rod (42) rotates and contacts the receiving rod (44) and moves under its action. The output end of the motor reverses and drives the lower drive shaft (2) to reverse. The rotation of the lower drive shaft (2) will drive the receiving rod (44) to move downward through the stirring rod (41) and the sliding rod (42). The separation device includes a conical disc (51), a sliding frame (52), and a connecting rod (53). The conical disc (51) is fixedly installed below the lower drive shaft (2). The surface of the mounting plate (7) is provided with a discharge groove. The sliding frame (52) is slidably installed on the surface of the discharge groove. The connecting rod (53) is fixedly installed below the receiving rod (44). The end of the connecting rod (53) away from the receiving rod (44) is fixedly connected to the sliding frame (52). A spring is provided between the receiving rod (44) and the inner wall of the processing frame (1). A reciprocating screw (54) is fixedly installed below the conical disc (51). A sleeve (55) is slidably installed on the surface of the reciprocating screw (54). A connecting rod (56) is fixedly installed on the surface of the sleeve (55). A lifting plate (57) is fixedly installed on the surface of the connecting rod (56).

2. The apparatus for recovering Ag from wet smelting sludge according to claim 1, characterized in that: A material spreading plate (35) is slidably mounted on the surface of the lower drive shaft (2). A receiving block (36) is fixedly mounted on the top of the material spreading plate (35). A pressure block (37) is fixedly mounted on the top of the inner wall of the processing frame (1). An arc surface one is opened on the top of the receiving block (36), and an arc surface two is opened on the bottom of the pressure block (37). A material spreading groove is opened on the surface of the material spreading plate (35). A spring spring one is provided between the material spreading plate (35) and the lower drive shaft (2).

3. The apparatus for recovering Ag from wet smelting sludge according to claim 2, characterized in that: An air frame (45) is fixedly inserted through the surface of the stirring rod (41). A sliding plate (46) is slidably installed inside the air frame (45). An L-shaped rod (47) is fixedly installed on the surface of the sliding plate (46). The L-shaped rod (47) slidably penetrates the inner and outer walls of the air frame (45). The end of the L-shaped rod (47) away from the sliding plate (46) is fixedly connected to the sliding rod (42). A one-way valve is provided on the surface of the sliding plate (46), and a two-way valve is provided on the surface of the sliding plate (46).

4. The apparatus for recovering Ag from wet slurry according to claim 3, characterized in that: The separation device includes a moving rod (61), a separation disc (62), a receiving disc (63), a pressure plate (64), and a filter plate (65). The moving rod (61) is slidably installed at the bottom of the processing frame (1). The separation disc (62) is fixedly installed at the end of the moving rod (61) away from the processing frame (1). The receiving disc (63) is fixedly installed above the separation disc (62). The pressure plate (64) is slidably installed on the surface of the reciprocating screw (54). The filter plate (65) is fixedly installed at the bottom of the receiving disc (63). A spring is provided between the pressure plate (64) and the reciprocating screw (54). The separation disc (62) is connected to the processing frame (1) through a conduit. The conduit is elastic and has a one-way valve inside. A groove is provided on the surface of the moving rod (61).

5. The apparatus for recovering Ag from wet slurry according to claim 4, characterized in that: A pull rod (66) is fixedly installed on the surface of the moving rod (61), and a limit rod (67) is slidably installed below the processing frame (1). A spring-loaded spring is provided between the limit rod (67) and the processing frame (1).

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