Leaching device for recovering silver from water quenching slag

Abstract

The utility model discloses a leaching device for recovering silver from water-quenched slag, which relates to the technical field of water-quenched slag, and is technically characterized by comprising a bottom plate and a leaching box arranged above the bottom plate, and a discharging mechanism and a mixing mechanism are arranged in the leaching box; the mixing mechanism is positioned on the right side of the discharging mechanism; the discharging mechanism comprises a discharging part and a dredging part; the device has the technical effects that the discharging mechanism is arranged, water in the leaching box can be discharged after silver in the water-quenched slag is separated out, so that the silver in the leaching box can be taken out more separately, the baffle can be controlled to move upwards in the water discharging process, and the silver in the leaching box can be discharged more conveniently. And the leaching box can be driven and controlled to incline when the control baffle moves upwards, so that the water in the leaching box can be completely drained during drainage, and the phenomenon that residues exist in the leaching box after drainage and corrode the leaching box is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water-quenched slag, in particular to a leaching device for recovering silver from water-quenched slag. Background Art

[0002] Water-quenched slag is the abbreviation of water-quenched basic iron furnace slag. It is a granular slag with a rough and porous surface, a light and brittle texture, and is easy to break. However, there will be some silver metal inside the water-quenched slag. When recovering these silver metals, a leaching device is required;

[0003] For this purpose, the China Patent Network has published a special leaching device for recovering metals from metal waste slag, with the announcement number CN213680825U, which includes a body, a feed pipe is arranged at the upper end of the body, a support plate and a rotating shaft are arranged inside the body, a stirring rod is arranged at the lower end of the rotating shaft, and the upper end of the stirring rod is rotatably connected to a power device; a discharge pipe is arranged on the right side of the body, a slot and a filter screen plug-in plate along the front-to-back direction are arranged at the right end of the front end face of the body, when the filter screen plug-in plate is inserted along the slot, the filter screen plug-in plate separates the discharge pipe from the interior of the body, a control valve is arranged in the middle of the discharge pipe, the right end of the discharge pipe is connected to a filter box, a filter screen plate is arranged in the filter box, the right end of the discharge pipe is arranged above the filter screen plate, and a liquid outlet pipe is arranged at the bottom of the filter box, and the liquid outlet pipe is arranged below the filter screen plate. In short, the utility model is convenient for cleaning the remaining metal waste slag in the mixer body;

[0004] However, there are still the following disadvantages. The existing devices discharge wastewater after leaching the metal, but there will still be residues inside the leaching box after the wastewater is discharged. In the long run, these residues will cause damage to the leaching box, resulting in a reduction in the service life of the leaching box itself. Therefore, a leaching device for recovering silver from water-quenched slag is proposed. Utility Model Content

[0005] Technical Solution

[0006] To achieve the above object, the utility model provides the following technical solution: a leaching device for recovering silver from water-quenched slag, comprising a bottom plate and a leaching box arranged above the bottom plate, wherein a discharging mechanism and a mixing mechanism are arranged inside the leaching box;

[0007] The mixing mechanism is located on the right side of the discharging mechanism;

[0008] The discharging mechanism comprises a discharging part and a dredging part;

[0009] The discharging part includes a baffle and a first extrusion block, and the dredging part includes a filter screen and an electric telescopic rod;

[0010] A slide rail is fixedly provided on the top surface of the bottom plate, a slide plate is slidably provided on the surface of the slide rail, the left side of the slide plate is fixedly connected to the right side of the first extrusion block, a second extrusion block is fixedly provided on the bottom surface of the leaching box, the inclined surface of the second extrusion block is slidably connected to the inclined surface of the first extrusion block, a connecting block is hingedly provided on the top surface of the bottom plate, and the top surface of the connecting block is fixedly connected to the bottom surface of the leaching box.

[0011] Preferably, the mixing mechanism includes a fixed frame, the front and rear end surfaces inside the fixed frame are fixedly connected to the front and rear side surfaces of the leaching box respectively, a second motor is fixedly arranged on the top surface of the fixed frame, the bottom surface of the output end of the second motor penetrates the top surface of the fixed frame and extends to the inside of the fixed frame, a rotating rod is fixedly arranged on the bottom surface of the output end of the second motor, and a stirring frame is fixedly arranged on the front side of the rotating rod. By providing the mixing mechanism, the water-quenched slag can be stirred when silver is precipitated, so that the mixing between the water-quenched slag and the catalyst can be faster.

[0012] Preferably, a partition is vertically fixedly provided on the inner side of the leaching box, and a through groove is formed on the left side of the partition, and the inner wall of the through groove is fixedly connected to the surface of the filter screen, the left side of the partition is fixedly connected to the right side of the baffle, and the front and rear end faces of the baffle are slidably connected to the front and rear end faces of the inner side of the leaching box respectively, and a mounting bracket is fixedly provided on the left side of the leaching box, and a first motor is fixedly provided on the inner top surface of the mounting bracket, and a second threaded rod is fixedly provided on the bottom surface of the output end of the first motor, and a lifting block is threadedly sleeved on the surface of the second threaded rod, and the right side of the lifting block is fixedly connected to the left side of the baffle, and the bottom surface of the second threaded rod is rotatably connected to the inner bottom surface of the leaching box through a bearing seat. When the first motor is turned on, the rotation of the output end of the first motor can drive the second threaded rod to rotate, and when the second threaded rod rotates, the baffle can be driven up and down by the lifting block, and when the baffle moves upward, liquid on the right side of the partition can flow to the left side of the partition.

[0013] Preferably, a support plate is fixedly provided on the front side of the leaching box, and a first threaded rod is rotatably provided on the top surface of the support plate through bearing seat 2, a lifting plate is threadedly sleeved on the surface of the first threaded rod, a connecting rod is hingedly provided on the bottom surface of the lifting plate, and the bottom surface of the connecting rod is hinged to the top surface of the sliding plate, two pulleys are fixedly sleeved on the surface of the first threaded rod and the surface of the first motor output end, and the two pulley surfaces are connected by belt transmission, a dovetail groove is provided on the front side of the leaching box, a dovetail block is slidably provided on the inner wall of the dovetail groove, and the front side of the dovetail block is fixedly connected to the back side of the lifting plate, and when the sliding plate moves to the left, the first extrusion block can be driven to move synchronously, and when the first extrusion block moves to the left, the leaching box can be tilted through the second extrusion block.

[0014] Preferably, the front side of the electric telescopic rod is fixedly connected to the back side of the leaching box, the top surface of the leaching box is slidably arranged with the sliding frame, the right side surface of the output end of the electric telescopic rod is fixedly connected to the left side surface of the sliding frame, the bottom surface of the sliding frame is fixedly provided with a needle plate, a wedge-shaped groove is provided on the front side surface inside the leaching box, a wedge block is slidably provided on the inner wall of the wedge-shaped groove, the back side of the wedge block is fixedly connected to the front side of the needle plate, and a water outlet pipe is fixedly penetrated on the left side of the leaching box, the water outlet pipe extends to the inside of the leaching box, and a solenoid valve is provided inside the water outlet pipe. When the electric telescopic rod is turned on, the output end of the electric telescopic rod can be extended and retracted by driving the needle plate to move left and right through the sliding frame, and the filter can be dredged when the needle plate moves to the left.

[0015] Preferably, a telescopic plate is slidably provided on the inner front end surface of the stirring frame and extends to the front of the stirring frame; a fixed frame is vertically fixed on the inner side of the stirring frame; the surface of the telescopic plate is slidably connected to the inner wall of the fixed frame; an elastic member and two dampers are respectively fixedly provided on the back side of the telescopic plate; the elastic member and the back sides of the two dampers are fixedly connected to the inner rear end surface of the fixed frame; the stirring frame and its inner device are both provided with two groups of front and rear mirror images; the two telescopic plates can be extended by centrifugal force; when the two telescopic plates are extended, mixing efficiency can be higher; the telescopic plates can be retracted after the stirring frame stops rotating by a spring.

[0016] Preferably, a liquid storage tank is fixedly provided on the right side of the leaching tank, a liquid inlet pipe is fixedly provided on the top surface of the liquid storage tank and extends to the inside of the liquid storage tank, a liquid inlet pipe cover is provided on the surface of the liquid inlet pipe, a liquid pump is fixedly provided on the right side of the leaching tank, the back side of the liquid inlet end of the liquid pump is fixedly provided through the front side of the liquid storage tank and extends to the inside of the liquid storage tank, and the bottom side of the liquid outlet end of the liquid pump extends to the inside of the leaching tank, and by turning on the liquid pump, the liquid pump extracts the catalyst inside the liquid storage tank into the inside of the leaching tank.

[0017] Beneficial Effects

[0018] Compared with the prior art, the utility model provides a leaching device for recovering silver from water-quenched slag, which has the following beneficial effects:

[0019] 1. By providing a discharging mechanism, the water inside the leaching box can be discharged after the silver inside the water-quenched slag is precipitated, so that the silver inside the leaching box can be taken out more clearly. During the drainage process, the baffle can be controlled to move upward, so that the water on the right side of the partition can flow to the left side of the partition, and when the baffle is controlled to move upward, the leaching box can be driven to tilt, so that the water inside the leaching box can be drained during drainage, avoiding corrosion caused by residual liquid inside the leaching box after drainage. By providing a filter, the silver can be blocked when the liquid flows to the left side of the partition, so as to avoid the silver metal flowing out with the water flow and causing economic losses. During the filtration process of the filter, the needle plate can be controlled to move to the left, and the filter can be dredged when the needle plate moves to the left.

[0020] 2. The mixing mechanism can be provided to stir the water-quenched slag when silver is precipitated, so that the water-quenched slag and the catalyst can be mixed more quickly, making the silver precipitation more efficient. In addition, the telescopic plate can be extended by centrifugal force during the stirring process, thereby increasing the contact area during stirring and making the stirring efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a main perspective schematic diagram of the utility model;

[0022] Figure 2 It is a partial three-dimensional schematic diagram of the utility model from top view;

[0023] Figure 3 It is a partial cutaway perspective schematic diagram of the right side of the utility model;

[0024] Figure 4 It is a partially cutaway three-dimensional schematic diagram of the rear side of the utility model;

[0025] Figure 5 For this utility model Figure 1 Enlarged three-dimensional schematic diagram of area A in the middle.

[0026] In the figure: 1 bottom plate, 2 leaching box, 3 discharging mechanism, 301 mounting frame, 302 first motor, 303 slide rail, 304 sliding plate, 305 connecting rod, 306 baffle, 307 water outlet pipe, 308 lifting block, 309 pulley, 310 first threaded rod, 311 partition, 312 electric telescopic rod, 313 needle plate, 314 sliding frame, 315 wedge block, 316 first extrusion block, 317 second extrusion block, 318 filter screen, 319 second threaded rod, 321 support plate, 322 lifting plate, 323 dovetail block, 4 mixing mechanism, 401 second motor, 402 fixed frame, 403 liquid inlet pipe, 404 liquid storage tank, 405 liquid pump, 406 rotating rod, 407 damper, 408 telescopic plate, 409 elastic member, 410 fixed frame, 411 stirring frame. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1-Figure 5 As shown, this embodiment proposes a method including a bottom plate 1 and a leaching box 2 arranged above the bottom plate 1, wherein a discharging mechanism 3 and a mixing mechanism 4 are arranged inside the leaching box 2;

[0030] The mixing mechanism 4 is located on the right side of the discharging mechanism 3;

[0031] The discharging mechanism 3 includes a discharging part and a dredging part;

[0032] The discharging part includes a baffle 306 and a first extrusion block 316, and the dredging part includes a filter screen 318 and an electric telescopic rod 312;

[0033] A slide rail 303 is fixedly arranged on the top surface of the bottom plate 1, and a slide plate 304 is slidably arranged on the surface of the slide rail 303. The left side of the slide plate 304 is fixedly connected to the right side of the first extrusion block 316. A second extrusion block 317 is fixedly arranged on the bottom surface of the leaching box 2. The inclined surface of the second extrusion block 317 is slidably connected to the inclined surface of the first extrusion block 316. A connecting block is hingedly arranged on the top surface of the bottom plate 1. The top surface of the connecting block is fixedly connected to the bottom surface of the leaching box 2. A partition 311 is vertically fixedly arranged on the inner side surface of the leaching box 2. A through groove is penetrated on the left side of the partition 311. The inner wall of the through groove is fixedly connected to the surface of the filter screen 318. The left side of the partition 311 The front and rear end surfaces of the baffle 306 are respectively slidably connected to the front and rear end surfaces inside the leaching box 2. A mounting frame 301 is fixedly arranged on the left side of the leaching box 2. A first motor 302 is fixedly arranged on the inner top surface of the mounting frame 301. A second threaded rod 319 is fixedly arranged on the bottom surface of the output end of the first motor 302. A lifting block 308 is threadedly sleeved on the surface of the second threaded rod 319. The right side of the lifting block 308 is fixedly connected to the left side of the baffle 306. The bottom surface of the second threaded rod 319 is rotatably connected to the inner bottom surface of the leaching box 2 through a bearing seat 1. A support plate is fixedly arranged on the front side of the leaching box 2. 321, the top surface of the support plate 321 is rotatably provided with a first threaded rod 310 through the bearing seat 2, the surface of the first threaded rod 310 is threadedly sleeved with a lifting plate 322, the bottom surface of the lifting plate 322 is hingedly provided with a connecting rod 305, the bottom surface of the connecting rod 305 is hinged with the top surface of the sliding plate 304, the surface of the first threaded rod 310 and the surface of the output end of the first motor 302 are respectively fixedly sleeved with two pulleys 309, the surfaces of the two pulleys 309 are connected by belt transmission, the front side of the leaching box 2 is provided with a dovetail groove, the inner wall of the dovetail groove is slidably provided with a dovetail block 323, the front side of the dovetail block 323 is connected to the back side of the lifting plate 322 The front side of the leaching box 2 is fixedly connected, the front side of the electric telescopic rod 312 is fixedly connected to the back side of the leaching box 2, the top surface of the leaching box 2 is slidably arranged with a sliding frame 314, the right side of the output end of the electric telescopic rod 312 is fixedly connected to the left side of the sliding frame 314, and a needle plate 313 is fixedly arranged on the bottom surface of the sliding frame 314. A wedge-shaped groove is provided on the front side of the inside of the leaching box 2, and a wedge-shaped block 315 is slidably arranged on the inner wall of the wedge-shaped groove, and the back side of the wedge block 315 is fixedly connected to the front side of the needle plate 313. A water outlet pipe 307 is fixedly penetrated on the left side of the leaching box 2, and the water pipe 307 extends to the inside of the leaching box 2, and a solenoid valve is arranged inside the water outlet pipe 307.

[0034] In this embodiment, the discharging mechanism 3 is provided to discharge the water in the leaching box 2 after the silver in the water-quenched slag is precipitated, so that the silver in the leaching box 2 can be taken out more clearly. During the drainage process, the baffle 306 can be controlled to move upward, so that the water on the right side of the partition 311 can flow to the left side of the partition 311, and when the baffle 306 is controlled to move upward, the leaching box 2 can be driven to be tilted, so that the water in the leaching box 2 can be drained during drainage, and the residual inside the leaching box 2 after drainage can be avoided to cause corrosion to it. The filter screen 318 can be provided to block the silver when the liquid flows to the left side of the partition 311, so as to prevent the silver metal from flowing out with the water flow and causing economic losses. During the filtering process of the filter screen 318, the needle plate 313 can be controlled to move to the left, and the filter screen 318 can be dredged when the needle plate 313 moves to the left.

[0035] Example 2

[0036] like Figure 1-Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the mixing mechanism 4 includes a fixed frame 402, the front and rear end surfaces inside the fixed frame 402 are fixedly connected to the front and rear side surfaces of the leaching box 2 respectively, the top surface of the fixed frame 402 is fixedly provided with a second motor 401, the bottom surface of the output end of the second motor 401 penetrates the top surface of the fixed frame 402 and extends to the inside of the fixed frame 402, the bottom surface of the output end of the second motor 401 is fixedly provided with a rotating rod 406, the front surface of the rotating rod 406 is fixedly provided with a stirring frame 411, the front end surface of the inner side of the stirring frame 411 is slidably penetrated with a telescopic plate 408 extending to the front of the stirring frame 411, and a fixed frame 410 is vertically fixedly provided on the inside of the stirring frame 411, and the surface of the telescopic plate 408 is connected to the fixed frame The inner wall of 410 is slidably connected, and an elastic member 409 and two dampers 407 are fixedly arranged on the back of the telescopic plate 408, and the backs of the elastic member 409 and the two dampers 407 are fixedly connected to the inner rear end surface of the fixed frame 410. The stirring frame 411 and its inner devices are mirror-imaged in two groups. A liquid storage tank 404 is fixedly arranged on the right side of the leaching tank 2, and a liquid inlet pipe 403 is fixedly penetrated on the top surface of the liquid storage tank 404 and extends to the inside of the liquid storage tank 404. A liquid inlet pipe cover is sleeved on the surface of the liquid inlet pipe 403. A liquid pump 405 is fixedly arranged on the right side of the leaching tank 2, and the back of the liquid inlet end of the liquid pump 405 is fixedly penetrated through the front of the liquid storage tank 404 and extends to the inside of the liquid storage tank 404, and the bottom side of the liquid outlet end of the liquid pump 405 extends to the inside of the leaching tank 2.

[0037] In this embodiment, the mixing mechanism 4 is provided to stir the water-quenched slag when silver is precipitated, so that the mixing between the water-quenched slag and the catalyst can be more rapid, making the silver precipitation more efficient, and during the stirring process, the telescopic plate 408 can be extended by centrifugal force to increase the contact area during stirring, thereby making the stirring efficiency higher.

[0038] When in use, the water-quenched slag is placed on the right side of the partition 311, and water is poured into the leaching box 2. The liquid pump 405 is turned on, and the liquid pump 405 extracts the catalyst in the liquid storage tank 404 into the leaching box 21. The second motor 401 is turned on, and the rotation of the output end of the second motor 401 can drive the rotating rod 406 to rotate. When the rotating rod 406 rotates, the stirring frame 411 can be driven to rotate synchronously. When the stirring frame 411 rotates, the two telescopic plates 408 can be extended by centrifugal force. When the two telescopic plates 408 are extended, the mixing efficiency can be higher. After the mixing is completed, it is allowed to stand for a period of time so that the silver in the water-quenched slag can be precipitated. After precipitation, the first motor 302 is turned on, and the rotation of the output end of the first motor 302 can drive the second threaded rod 319 to rotate. When the second threaded rod 319 rotates, the baffle 306 can be driven to move up and down through the lifting block 308. When the baffle 306 moves upward, the partition The liquid on the right side of 311 flows to the left side of the partition 311, and can drive the first threaded rod 310 to rotate when the output end of the first motor 302 rotates through the pulley 309, and the lifting plate 322 can be moved up and down when the first threaded rod 310 rotates. When the lifting plate 322 moves up and down, the sliding plate 304 can be driven to move left and right through the connecting rod 305. When the sliding plate 304 moves to the left, it can drive the first extrusion block 316 to move synchronously. When the first extrusion block 316 moves to the left, the leaching box 2 can be tilted through the second extrusion block 317. After the leaching box 2 is tilted, the solenoid valve is opened, so that the liquid inside the leaching box 2 can be discharged through the water outlet rod 307. When the liquid passes through the filter screen 318, the electric telescopic rod 312 is opened. The output end of the electric telescopic rod 312 can be extended and retracted to drive the needle plate 313 to move left and right through the sliding frame 314, and the filter screen 318 can be dredged when the needle plate 313 moves to the left.

[0039] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A leaching device for recovering silver from water-quenched slag, comprising a bottom plate (1) and a leaching box (2) arranged above the bottom plate (1), characterized in that: The leaching box (2) is provided with a discharging mechanism (3) and a mixing mechanism (4) inside; The mixing mechanism (4) is located to the right of the discharging mechanism (3); The discharging mechanism (3) comprises a discharging portion and a dredging portion; The discharge part includes a baffle (306) and a first extrusion block (316), and the dredging part includes a filter screen (318) and an electric telescopic rod (312); A slide rail (303) is fixedly arranged on the top surface of the bottom plate (1), a slide plate (304) is slidably arranged on the surface of the slide rail (303), the left side of the slide plate (304) is fixedly connected to the right side of the first extrusion block (316), a second extrusion block (317) is fixedly arranged on the bottom surface of the leaching tank (2), the inclined surface of the second extrusion block (317) is slidably connected to the inclined surface of the first extrusion block (316), and a connecting block is hingedly arranged on the top surface of the bottom plate (1), and the top surface of the connecting block is fixedly connected to the bottom surface of the leaching tank (2).

2. The leaching device for recovering silver from water-quenched slag according to claim 1, characterized in that: The mixing mechanism (4) comprises a fixed frame (402), the front and rear end surfaces inside the fixed frame (402) are respectively fixedly connected to the front and rear side surfaces of the leaching box (2), a second motor (401) is fixedly arranged on the top surface of the fixed frame (402), the bottom surface of the output end of the second motor (401) passes through the top surface of the fixed frame (402) and extends to the inside of the fixed frame (402), a rotating rod (406) is fixedly arranged on the bottom surface of the output end of the second motor (401), and a stirring frame (411) is fixedly arranged on the front surface of the rotating rod (406).

3. The leaching device for recovering silver from water-quenched slag according to claim 1, characterized in that: A partition (311) is vertically fixedly arranged on the inner side of the leaching box (2); a through groove is formed through the left side of the partition (311); the inner wall of the through groove is fixedly connected to the surface of the filter screen (318); the left side of the partition (311) is fixedly connected to the right side of the baffle (306); the front and rear end surfaces of the baffle (306) are respectively slidably connected to the front and rear end surfaces of the inner side of the leaching box (2); a mounting frame (301) is fixedly arranged on the left side of the leaching box (2); a first motor (302) is fixedly arranged on the inner top surface of the mounting frame (301); a second threaded rod (319) is fixedly arranged on the bottom surface of the output end of the first motor (302); a lifting block (308) is threadedly sleeved on the surface of the second threaded rod (319); the right side of the lifting block (308) is fixedly connected to the left side of the baffle (306); and the bottom surface of the second threaded rod (319) is rotatably connected to the inner bottom surface of the leaching box (2) through a bearing seat 1.

4. The leaching device for recovering silver from water-quenched slag according to claim 3, characterized in that: A support plate (321) is fixedly provided on the front side of the leaching box (2), and a first threaded rod (310) is rotatably provided on the top side of the support plate (321) through a second bearing seat, and a lifting plate (322) is threadedly sleeved on the surface of the first threaded rod (310), and a connecting rod (305) is hingedly provided on the bottom side of the lifting plate (322), and the bottom side of the connecting rod (305) is hingedly connected to the top side of the sliding plate (304), and two pulleys (309) are fixedly sleeved on the surface of the first threaded rod (310) and the surface of the output end of the first motor (302), respectively, and the surfaces of the two pulleys (309) are connected through a belt transmission, and a dovetail groove is provided on the front side of the leaching box (2), and a dovetail block (323) is slidably provided on the inner wall of the dovetail groove, and the front side of the dovetail block (323) is fixedly connected to the back side of the lifting plate (322).

5. The leaching device for recovering silver from water-quenched slag according to claim 1, characterized in that: The front side of the electric telescopic rod (312) is fixedly connected to the back side of the leaching box (2); the top surface of the leaching box (2) is slidably arranged with a sliding frame (314); the right side of the output end of the electric telescopic rod (312) is fixedly connected to the left side of the sliding frame (314); a needle plate (313) is fixedly arranged on the bottom surface of the sliding frame (314); a wedge-shaped groove is provided on the front side of the inside of the leaching box (2); a wedge-shaped block (315) is slidably arranged on the inner wall of the wedge-shaped groove; the back side of the wedge-shaped block (315) is fixedly connected to the front side of the needle plate (313); a fixed water outlet pipe (307) is arranged through the left side of the leaching box (2); the water outlet pipe (307) extends to the inside of the leaching box (2); and a solenoid valve is arranged inside the water outlet pipe (307).

6. The leaching device for recovering silver from water-quenched slag according to claim 2, characterized in that: The front end surface of the inner side of the stirring frame (411) is slidably penetrated by a telescopic plate (408) extending to the front of the stirring frame (411); a fixing frame (410) is vertically fixedly arranged on the inner side of the stirring frame (411); the surface of the telescopic plate (408) is slidably connected to the inner wall of the fixing frame (410); an elastic member (409) and two dampers (407) are respectively fixedly arranged on the back side of the telescopic plate (408); the back sides of the elastic member (409) and the two dampers (407) are fixedly connected to the rear end surface of the inner side of the fixing frame (410); and the stirring frame (411) and its inner device are both arranged in two groups in a front-to-back mirror image.

7. The leaching device for recovering silver from water-quenched slag according to claim 2, characterized in that: A liquid storage tank (404) is fixedly arranged on the right side of the leaching tank (2); a liquid inlet pipe (403) is fixedly arranged on the top surface of the liquid storage tank (404) and extends into the interior of the liquid storage tank (404); a liquid inlet pipe cover is sleeved on the surface of the liquid inlet pipe (403); a liquid pump (405) is fixedly arranged on the right side of the leaching tank (2); the back side of the liquid inlet end of the liquid pump (405) is fixedly arranged to penetrate the front side of the liquid storage tank (404) and extend into the interior of the liquid storage tank (404); and the bottom side of the liquid outlet end of the liquid pump (405) extends to the inside of the leaching tank (2).

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