Leaching device for recycling heavy metal from tailings

Abstract

The utility model relates to the technical field of leaching for recycling heavy metals from tailings, in particular to a leaching device for recycling heavy metals from tailings, which comprises a bottom frame, a mixing mechanism arranged above the bottom frame and a crushing mechanism positioned above the mixing mechanism. The device has the beneficial effects that large-size tailings are fully crushed through the crushing assembly, the tailings which are not completely crushed are screened out through the screening assembly, repeated crushing is carried out, when the crushed tailings are screened, the tailings possibly block filter holes of a filter plate, and the tailings are prevented from blocking the filter holes of the filter plate. The lifting assembly drives the filter plate to intermittently move up and down, so that the filter plate jolts up and down and generates certain vibration at the same time, and tailings blocked in the filter holes are vibrated and dredged, so that the tailings are ensured to fall into the mixing mechanism in a relatively small volume and are fully mixed with leacheate; and metal substances in the tailings are fully fused with the leacheate, so that the waste of the metal substances is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of leaching of heavy metals recovered from tailings, in particular to a leaching device for recovering heavy metals from tailings. Background Art

[0002] The part of the product of the sorting operation in the ore dressing that has a low content of useful target components and cannot be used for production is called tailings. The most economically valuable part of the mine is the various valuable metals and minerals contained in it. The valuable resources of lead-zinc tailings are mainly lead, zinc and other substances. In the process of recovering heavy metals in tailings, tailings heavy metal recovery and leaching equipment is often needed.

[0003] By comparing the patent announcement number CN218360921U, a leaching device for recovering heavy metals from lead-zinc tailings, in this scheme, before the tailings are leached, a large amount of tailings may be mixed with larger tailings. If the larger tailings are not crushed to a certain extent, the larger tailings may not be fully mixed with the leaching liquid during leaching, which may result in the metal substances inside the tailings not being able to fully merge with the leaching liquid after the tailings are mixed with the leaching liquid, which may result in waste of metal substances in the tailings. Utility Model Content

[0004] The purpose of the utility model is to provide a leaching device for recovering heavy metals from tailings in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A tailings washing device for recovering heavy metals comprises a base frame, a mixing mechanism is arranged above the base frame, and a crushing mechanism for crushing large tailings before tailings washing, wherein the crushing mechanism is located above the mixing mechanism;

[0007] The crushing mechanism includes a filter bin arranged above the base frame, a crushing assembly for crushing large tailings, and a screening assembly for filtering and screening the crushed tailings;

[0008] The screening component includes a filter plate arranged inside the filter bin, two front-and-rear symmetrical sliding seats are rotatably installed on one end of the filter plate, and two front-and-rear symmetrical fixed seats are rotatably installed on the other end, the fixed seats are fixedly connected to the inner wall of the filter bin, a material discharge cavity is opened on the side of the filter bin close to the fixed seat, a material holding box is arranged below the material discharge cavity, and the material holding box is slidably connected to the side wall of the filter bin, a baffle is fixed on the upper end of the filter plate, and a lifting assembly is arranged on the side of the filter plate close to the sliding seat, and the lifting assembly is used to lift up the end of the filter plate close to the sliding seat to make the filter plate vibrate.

[0009] Preferably: the lifting assembly includes a lifting plate arranged below the sliding seat, the sliding seat is slidably connected to the lifting plate, a connecting plate is fixed in the middle position of the lifting plate, the lifting plate and the connecting plate form an L shape with each other, the connecting plate is slidably connected to the filter bin, a fixed plate is arranged above the connecting plate, the fixed plate is fixedly connected to the filter bin, an eccentric disk is rotatably installed on one end of the fixed plate near the connecting plate, a rotating motor is installed on the rotating end of the eccentric disk, and a connecting rod is rotatably connected between the eccentric disk and the connecting plate.

[0010] Preferably, the crushing assembly comprises two symmetrical crushing rollers rotatably mounted on the upper end of the filter bin, gears are fixed to the rear ends of the crushing rollers, the two gears are meshed, and a crushing motor is mounted on the rotating end of the crushing rollers.

[0011] Preferably: the mixing mechanism includes a mixing bin arranged between the base frame and the filtering bin, a partition is fixed at the upper end of the mixing bin, a rotating shaft is installed at the lower end of the partition, a mixing motor is installed at the rotating end of the rotating shaft, a plurality of stirring blades are fixedly installed at the upper end of the rotating shaft, a drug delivery tube is installed at the upper end of the mixing bin, a first solenoid valve is installed at the lower end of the drug delivery tube, and a second solenoid valve is installed at the lower end of the mixing bin.

[0012] Preferably: a material discharge platform is arranged on the lower side of the filter plate near the fixed seat, the material discharge platform is fixedly connected to the filter bin, and the upper end of the material discharge platform is arc-shaped.

[0013] Preferably: a protective cover is arranged above the mixing motor, the upper end of the protective cover is arc-shaped, and a feeding auger is fixed at the lower end of the rotating shaft.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] The larger tailings are fully crushed by the crushing component, and the incompletely crushed tailings are screened out by the screening component, and then repeated crushing is performed. When the crushed tailings are screened, the tailings may clog the filter holes of the filter plate, so that the filter plate is driven to move up and down intermittently by the lifting component, causing the filter plate to bump up and down and generate a certain vibration, thereby vibrating and clearing the tailings blocked in the filter holes, thereby ensuring that the tailings fall into the mixing mechanism in a smaller volume and are fully mixed with the eluent, so that the metal substances inside the tailings are fully integrated with the eluent, avoiding the waste of metal substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a spatial stereogram of a washing device for recovering heavy metals from tailings according to the utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of a leaching device for recovering heavy metals from tailings according to the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 It is a schematic diagram of the structure of a part of a crushing roller of a leaching device for recovering heavy metals from tailings according to the utility model;

[0021] Figure 5 It is a structural schematic diagram of a lifting assembly of a leaching device for recovering heavy metals from tailings according to the utility model;

[0022] Figure 6 It is a schematic diagram of the structure inside a mixing bin of a leaching device for recovering heavy metals from tailings described in the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 100, base frame; 201, filter bin; 202, crushing roller; 203, gear; 204, crushing motor; 205, lifting plate; 206, connecting plate; 207, sliding seat; 208, fixed seat; 209, connecting rod; 210, eccentric disk; 211, rotating motor; 212, fixed plate; 213, unloading platform; 214, material box; 215, filter plate; 216, unloading chamber; 301, mixing bin; 302, mixing motor; 303, protective cover; 304, rotating shaft; 305, stirring blade; 306, unloading auger; 307, partition; 308, drug delivery tube. DETAILED DESCRIPTION

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] like Figure 1-Figure 6 As shown, a leaching device for recovering heavy metals from tailings includes a base frame 100, a mixing mechanism for mixing crushed tailings with a leaching solution, the mixing mechanism being located above the base frame 100, and a crushing mechanism for crushing large pieces of tailings before leaching the tailings, the crushing mechanism being located above the mixing mechanism.

[0029] In this embodiment: the crushing mechanism includes a filter chamber 201 arranged above the base frame 100, a crushing assembly for crushing large tailings, and a screening assembly for filtering and screening the crushed tailings.

[0030] The screening component includes a filter plate 215 arranged inside the filter bin 201, and two front-to-back symmetrical sliding seats 207 are rotatably installed at one end of the filter plate 215, and two front-to-back symmetrical fixed seats 208 are rotatably installed at the other end. The fixed seats 208 are fixedly connected to the inner wall of the filter bin 201, and a material discharge cavity 216 is provided on the side of the filter bin 201 close to the fixed seat 208, and a material holding box 214 is provided below the material discharge cavity 216. The material holding box 214 is slidably connected to the side wall of the filter bin 201, a baffle is fixed to the upper end of the filter plate 215, and a lifting assembly is provided on the side of the filter plate 215 close to the sliding seat 207. The lifting assembly is used to lift the end of the filter plate 215 close to the sliding seat 207 upwards to cause the filter plate 215 to vibrate.

[0031] The lifting assembly includes a lifting plate 205 arranged below the sliding seat 207, the sliding seat 207 is slidably connected to the lifting plate 205, a connecting plate 206 is fixed at the middle position of the lifting plate 205, the lifting plate 205 and the connecting plate 206 form an L shape with each other, the connecting plate 206 is slidably connected to the filter bin 201, a fixed plate 212 is arranged above the connecting plate 206, the fixed plate 212 is fixedly connected to the filter bin 201, an eccentric disk 210 is rotatably installed on one end of the fixed plate 212 near the connecting plate 206, a connecting rod 209 is rotatably connected between the eccentric disk 210 and the connecting plate 206, a rotating motor 211 is installed at the rotating end of the eccentric disk 210, a discharge platform 213 is arranged on the filter plate 215 near the lower side of the fixed seat 208, the discharge platform 213 is fixedly connected to the filter bin 201, and the upper end of the discharge platform 213 is arc-shaped.

[0032] The crushing assembly includes two symmetrical crushing rollers 202 rotatably mounted on the upper end of the filter bin 201 , gears 203 are fixed to the rear ends of the crushing rollers 202 , the two gears 203 are meshed with each other, and a crushing motor 204 is mounted on the rotating end of the crushing rollers 202 .

[0033] In this embodiment, the mixing mechanism includes a mixing bin 301 disposed between the base frame 100 and the filtering bin 201, a partition 307 is fixed to the upper end of the mixing bin 301, a rotating shaft 304 is installed at the lower end of the partition 307, a mixing motor 302 is installed at the rotating end of the rotating shaft 304, a protective cover 303 is arranged above the mixing motor 302, and the upper end of the protective cover 303 is arc-shaped, which is convenient for feeding the tailings after screening and reducing the retention on the partition 307, a plurality of stirring blades 305 are fixedly installed at the upper end of the rotating shaft 304, and a feeding auger 306 is fixed at the lower end of the rotating shaft 304. A drug delivery tube 308 is installed at the upper end, a first solenoid valve is installed at the lower end of the drug delivery tube 308, and a second solenoid valve is installed at the lower end of the mixing bin 301. Eluent is added into the drug delivery tube 308 to mix the eluent with the tailings inside. The mixing motor 302 is driven to drive the rotating shaft 304 to rotate, and the plurality of stirring blades 305 are driven to rotate to fully stir the tailings and the eluent inside, so that the tailings and the eluent are fully mixed and the two are mixed more evenly. Then, the rotation of the rotating shaft 304 drives the unloading auger 306 at the lower end of the rotating shaft 304 to rotate, so as to accelerate the unloading of the mixed solution inside.

[0034] Working principle: First, start the crushing motor 204, and use the two gears 203 to mesh, thereby driving the two crushing rollers 202 to rotate in opposite directions, and then pour a large amount of tailings into the filter bin 201, and use the opposite rotation of the two upper crushing rollers 202 to crush the tailings, and crush the larger tailings. The crushed tailings fall on the filter plate 215 below, and the filter plate 215 is used to perform preliminary filtration on the crushed tailings. The tailings that meet the volume pass through the filter plate 215 and fall into the mixing bin 301, and the tailings that do not meet the volume remain on the filter plate 215.

[0035] Then, the rotating motor 211 is driven to drive the eccentric disk 210 to rotate, and the connecting plate 206 is driven to move up and down through the connecting rod 209, thereby driving the lifting plate 205 to move up and down, so that the two sliding seats 207 drive the filter plate 215 to move up and down, so that the filter plate 215 forms a certain inclination angle, so that the uncrushed qualified tailings above fall along the discharge cavity 216 into the material holding box 214 for collection. When the collection is full, the material holding box 214 is pulled out and the tailings inside are poured into the upper end of the filter bin 201 for crushing again. When the filter plate 215 moves up and down, the filter plate 215 will produce up and down bumps and generate certain vibrations, thereby vibrating and clearing the tailings blocked in the filter hole, thereby ensuring that the tailings fall into the mixing mechanism in a smaller volume and are fully mixed with the eluent, so that the metal substances in the tailings are fully integrated with the eluent, thereby avoiding the waste of metal substances.

[0036] The tailings after crushing fall into the mixing bin 301, and then the eluent is added into the drug delivery tube 308 to mix the eluent with the tailings inside. The mixing motor 302 is driven to drive the rotating shaft 304 to rotate, and drive the multiple stirring blades 305 to rotate, so as to fully stir the tailings and the eluent inside, so that the tailings and the eluent are fully mixed and the two are mixed more evenly. Then, the rotation of the rotating shaft 304 drives the unloading auger 306 at the lower end of the rotating shaft 304 to rotate, accelerate the unloading of the internal mixed solution, and then filter the mixed solution to separate the tailings and the eluent.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A washing device for recovering heavy metals from tailings, comprising a base frame, a mixing mechanism is arranged above the base frame, and is characterized in that: It also includes a crushing mechanism for crushing large tailings before tailings washing, and the crushing mechanism is located above the mixing mechanism; The crushing mechanism includes a filter bin arranged above the base frame, a crushing assembly for crushing large tailings, and a screening assembly for filtering and screening the crushed tailings; The screening assembly includes a filter plate arranged inside the filter bin, one end of the filter plate is rotatably mounted with two front-and-rear symmetrical sliding seats, and the other end is rotatably mounted with two front-and-rear symmetrical fixed seats, the fixed seats are fixedly connected to the inner wall of the filter bin, a material discharge cavity is provided on the side of the filter bin close to the fixed seat, a material holding box is provided below the material discharge cavity, the material holding box is slidably connected to the side wall of the filter bin, a baffle is fixed to the upper end of the filter plate, and a lifting assembly is provided on the side of the filter plate close to the sliding seat, the lifting assembly is used to lift the end of the filter plate close to the sliding seat upwards to cause the filter plate to vibrate.

2. The leaching device for recovering heavy metals from tailings according to claim 1, characterized in that: The lifting assembly includes a lifting plate arranged below the sliding seat, the sliding seat is slidably connected to the lifting plate, a connecting plate is fixed at the middle position of the lifting plate, the lifting plate and the connecting plate form an L shape with each other, the connecting plate is slidably connected to the filter bin, a fixed plate is arranged above the connecting plate, the fixed plate is fixedly connected to the filter bin, an eccentric disk is rotatably installed on one end of the fixed plate close to the connecting plate, a rotating motor is installed on the rotating end of the eccentric disk, and a connecting rod is rotatably connected between the eccentric disk and the connecting plate.

3. A leaching device for recovering heavy metals from tailings according to claim 2, characterized in that: The crushing assembly comprises two symmetrical crushing rollers rotatably mounted on the upper end of the filter bin, gears are fixed to the rear ends of the crushing rollers, the two gears are meshed, and a crushing motor is mounted on the rotating end of the crushing rollers.

4. A tailings washing device for recovering heavy metals according to claim 3, characterized in that: The mixing mechanism includes a mixing bin arranged between the base frame and the filtering bin, a partition is fixed at the upper end of the mixing bin, a rotating shaft is installed at the lower end of the partition, a mixing motor is installed at the rotating end of the rotating shaft, a plurality of stirring blades are fixedly installed at the upper end of the rotating shaft, a drug delivery tube is installed at the upper end of the mixing bin, a first solenoid valve is installed at the lower end of the drug delivery tube, and a second solenoid valve is installed at the lower end of the mixing bin.

5. The leaching device for recovering heavy metals from tailings according to claim 4, characterized in that: The filter plate is provided with a material discharge platform near the lower side of the fixing seat, the material discharge platform is fixedly connected to the filter bin, and the upper end of the material discharge platform is arc-shaped.

6. A washing device for recovering heavy metals from tailings according to claim 5, characterized in that: A protective cover is arranged above the mixing motor, the upper end of the protective cover is arc-shaped, and a feeding auger is fixed to the lower end of the rotating shaft.

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