A device and method for recovering metals from cyanide tailings

Abstract

The invention discloses a recovery device and a recovery method for metals in cyanide tailings, which belongs to the technical field of cyanide tailings treatment, and comprises two support frames, wherein a crushing box is fixedly connected between the two support frames, wherein a driving crushing assembly is provided inside the crushing box, wherein the driving crushing assembly is used to crush the agglomerated cyanide tailings, wherein a coarse screen assembly is provided below the driving crushing assembly, wherein the coarse screen assembly is used to coarsely screen the crushed cyanide tailings, wherein a fine screen assembly is provided below the coarse screen assembly, wherein the fine screen assembly performs fine screening on the cyanide tailings after coarse screening. The invention performs jumping dust suction while crushing the agglomerated cyanide tailings to avoid dust flying, and blows air on both sides of the coarse screen plate, thus facilitating the cyanide tailings to be concentrated in the middle, facilitating the jumping screening of the cyanide tailings, and simultaneously, not only can the jumping screening be performed during the fine screening, but also the swinging can be performed, thus facilitating the cyanide tailings to have more vibration modes, thereby improving the screening efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of cyanidation tailings treatment, and in particular relates to a device for recovering metals in cyanidation tailings and a recovery method thereof. Background Art

[0002] Cyanide tailings are solid waste produced during the cyanidation process, which often contain a variety of valuable metals such as gold and silver. With the rapid development of my country's gold industry, my country's gold smelting companies will discharge a large amount of cyanide tailings every year. With the continuous depletion of gold mineral resources, the recycling of secondary resources such as tailings has become increasingly important. Comprehensive recycling and utilization of cyanide tailings can not only improve resource utilization, but also bring good economic benefits to enterprises.

[0003] Most of the existing cyanide tailings are recycled by flotation, and the cyanide tailings usually agglomerate after sintering. Therefore, when the flotation method is used to recover metals, the agglomerated cyanide tailings cannot complete the metal recovery, and the agglomerated cyanide tailings need to be crushed. When the agglomerated cyanide tailings are crushed, they need to be screened to ensure that the cyanide tailings meet the flotation requirements. Traditional screening equipment can only perform a single vibration screening. In this way, the screening efficiency of the screen cannot be maximized due to the limited vibration amplitude and vibration direction of the screen. For this reason, we propose a metal recovery device and a recovery method in cyanide tailings. Summary of the invention

[0004] In order to solve the above problems, the object of the present invention is to provide a device and method for recovering metals in cyanidation tailings.

[0005] To achieve the above-mentioned purpose, the present invention proposes a device for recovering metals in cyanide tailings, comprising two support frames, a crushing box fixedly connected between the two support frames, a driven crushing assembly provided inside the crushing box, the driven crushing assembly being used to crush the agglomerated cyanide tailings, a coarse screen assembly provided below the driven crushing assembly, the coarse screen assembly being used to coarsely screen the crushed cyanide tailings, a fine screen assembly provided below the coarse screen assembly, the fine screen assembly being used to finely screen the coarsely screened cyanide tailings, and two jumping dust suction assemblies provided above the driven crushing assembly, the jumping dust suction assemblies being used to suction and suppress dust, and assist in feeding and coarse screening.

[0006] Preferably, the driving crushing assembly includes two crushing rollers movably sleeved inside a crushing box, a rotating shaft is fixedly sleeved inside the crushing roller, and both ends of the rotating shaft movably penetrate the box wall of the crushing box, one end of the rotating shaft is fixedly connected to a gear, and the two gears are meshed with each other, a plurality of toggle rods are fixed in an array on a side of the gear away from the crushing box, a fixing plate is fixedly connected to one side of the box wall of the crushing box, a first driving motor is fixedly connected to the fixing plate, and the output shaft of the first driving motor is fixedly connected to one of the gears.

[0007] Preferably, the coarse screening assembly includes a material receiving frame fixedly connected to the inner wall of the crushing box, a first material guide plate fixedly connected to the inner walls of both sides of the material receiving frame is provided below the crushing roller, side panels are fixedly connected to both sides of the material receiving frame, a lifting rod is movably provided inside the side panels, a coarse screening plate is fixedly connected to the top of the lifting rod, a spring sleeved on the outside of the lifting rod is connected between the side panels and the coarse screening plate, a toggle plate fixedly connected to both sides of the coarse screening plate is provided below the gear, and the toggle rod intermittently toggles the toggle plate, a cross plate is fixedly connected between the two toggle plates, a second driving motor is fixedly connected to the cross plate, a screw is fixedly connected to the output shaft of the second driving motor, a push plate is provided on the external thread of the screw, and the push plate is in sliding contact with the inner walls of both sides of the coarse screening plate.

[0008] Preferably, the jumping dust suction assembly includes a jumping rod fixedly connected to the top of the toggle plate, the other end of the jumping rod is fixedly connected to the first fixed tube, one end of the first fixed tube is fixedly connected to the suction pipe connected thereto, both ends of the suction pipe are provided with guide plates fixedly connected to the top of the crushing box, and the suction pipe slides on the surface of the guide plate, a second material guide plate is fixedly connected between the two guide plates, the second material guide plate is fixedly connected to a shaking rod on the side close to the gear, and the teeth on the gear intermittently toggle the shaking rod, the end of the first fixed tube away from the suction pipe is fixedly connected to an air suction pump, the air outlet of the air suction pump is fixedly connected to the second fixed tube, the bottom end of the second fixed tube is fixedly connected to a blowing pipe connected thereto, and the blowing pipe is located inside the crushing box.

[0009] Preferably, the fine screen assembly includes two fixed shafts rotatably arranged on the lifting rod, a fine screen plate is fixedly connected between the two fixed shafts, elastic bands are fixedly connected to the two sides of the bottom of the fine screen plate, two fixed seats are provided on the fixed sleeve of the lifting rod, and the bottom end of the elastic band is fixedly connected to the fixed seat, a swing shaft is movably provided on the fixed seat, and two V-shaped frames are provided on the external fixed sleeve of the swing shaft, one end of the swing shaft is fixedly connected to a swing gear, one side of the swing gear is provided with a rack fixedly connected to the material receiving frame, and the swing gear and the rack are meshed for transmission.

[0010] Preferably, a plurality of suction holes are arranged in an array on the suction pipe, and a plurality of blowing holes are arranged in an array on the blowing pipe.

[0011] Preferably, a lifting hole is provided on the side plate, and the lifting rod movably passes through the lifting hole.

[0012] Preferably, a material receiving box is provided below the fine screen assembly.

[0013] A method for recovering metals in cyanidation tailings, comprising the following steps:

[0014] Step 1: Add the agglomerated cyanide tailings into a crushing box, and crush the cyanide tailings by driving the crushing component;

[0015] Step 2: While driving the crushing component to work, the jumping dust collection component also drives the working of the jumping dust collection component. The jumping dust collection component not only shakes to assist the smooth feeding of the cyanide tailings, but also absorbs the floating dust;

[0016] Step 3: Driving the crushing component also drives the coarse screening component to work. The coarse screening component performs coarse screening on the crushed cyanide tailings. During the coarse screening, the toggle rod rotates with the gear to intermittently squeeze the toggle plate to lift and lower. When the toggle plate lifts and lowers, it drives the side plate and the lifting rod to lift and lower synchronously, and the side plate drives the coarse screening plate to lift and lower, thereby achieving the up and down shaking of the coarse screening plate to help screening. At the same time, the unscreened cyanide tailings on the coarse screening plate can also be pushed away from one side;

[0017] Step 4: When the coarse screen component shakes up and down, it also drives the fine screen component to work. The cyanide tailings after coarse screening will fall onto the fine screen component for fine screening. During fine screening, the lifting rod moves up and down and also drives the fixed shaft, fine screen plate and fixed seat to rise and fall synchronously, so that the fine screen plate can shake up and down, and the lifting rod moves up and down and also drives the swing shaft and swing gear to move up and down. The swing gear rises and falls along the rack and rotates back and forth, which drives the swing shaft to rotate back and forth. The swing shaft drives the fine screen plate and the fixed shaft to deflect back and forth, thereby realizing the shaking of the fine screen plate. In this way, the inclination angle of the fine screen plate is changed for screening, and the cyanide tailings that fall on the fine screen plate are also shaken and screened. Finally, the screened cyanide tailings fall into the receiving box.

[0018] The device and method for recovering metals from cyanide tailings proposed by the present invention can bring the following beneficial effects:

[0019] 1. The agglomerated cyanide tailings are crushed and crushed by driving the crushing component, and dust is sucked during the crushing to avoid dust flying;

[0020] 2. The crushing component is driven to drive the coarse screening component. During the coarse screening, the coarse screening plate jumps up and down for screening, and the jumping dust suction component jumps synchronously and blows air on both sides of the coarse screening plate, so that the cyanide tailings are concentrated in the middle and the screening of the cyanide tailings is convenient;

[0021] 3. The coarse screen assembly is shaken up and down while driving the fine screen assembly to work. The fine screen assembly can not only perform jumping screening, but also swing screening. In this way, the cyanide tailings on the fine screen plate can be vibrated in multiple directions, thereby improving the screening efficiency;

[0022] To sum up, the present scheme has a simple structure and a novel design. While crushing the agglomerated cyanide tailings, it performs dust collection by jumping to avoid dust flying. In addition, air is blown on both sides of the coarse screen plate, which makes it convenient for the cyanide tailings to be concentrated in the middle and convenient for the jumping screening of the cyanide tailings. At the same time, during the fine screening, it can not only perform jumping screening, but also swing, which makes it convenient to drive more vibration modes of the cyanide tailings, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] In the attached picture:

[0025] Figure 1 It is a front view structural schematic diagram of the present invention.

[0026] Figure 2 It is a side structural schematic diagram of the present invention.

[0027] Figure 3 It is a cross-sectional structural schematic diagram of the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the driving crushing assembly of the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the coarse screen assembly of the present invention.

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the jumping dust suction component of the present invention.

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fine screen assembly of the present invention.

[0034] In the figure: 1 support frame, 2 crushing box, 3 driving crushing assembly, 301 crushing roller, 302 rotating shaft, 303 gear, 304 toggle rod, 305 fixing plate, 306 first driving motor, 4 coarse screen assembly, 401 material receiving frame, 402 first material guide plate, 403 side plate, 404 lifting rod, 405 coarse screen plate, 406 spring, 407 toggle plate, 408 horizontal plate, 409 second driving motor, 410 screw rod, 411 pushing material Plate, 5 jumping dust suction component, 501 jumping rod, 502 first fixed pipe, 503 suction pipe, 504 guide plate, 505 second material guide plate, 506 shaking rod, 507 suction pump, 508 second fixed pipe, 509 blowing pipe, 6 fine screen component, 601 fixed shaft, 602 fine screen plate, 603 elastic belt, 604 fixed seat, 605 swing shaft, 606 V-frame, 607 swing gear, 608 rack, 7 material receiving box. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0036] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

[0040] like Figures 1 to 9 As shown, an embodiment of the present invention proposes a device for recovering metals in cyanide tailings, comprising two support frames 1, a crushing box 2 being fixedly connected between the two support frames 1, a driving crushing assembly 3 being provided inside the crushing box 2, the driving crushing assembly 3 being used for crushing the agglomerated cyanide tailings, a coarse screen assembly 4 being provided below the driving crushing assembly 3, the coarse screen assembly 4 being used for coarse screening of the crushed cyanide tailings, a fine screen assembly 6 being provided below the coarse screen assembly 4, the fine screen assembly 6 being used for fine screening of the coarsely screened cyanide tailings, two jumping dust suction assemblies 5 being provided above the driving crushing assembly 3, the jumping dust suction assemblies 5 being used for dust suction and dust suppression, and assisting in feeding and coarse screening.

[0041] like Figure 5 and Figure 6 As shown, the driving crushing assembly 3 includes two crushing rollers 301 movably sleeved inside the crushing box 2, a rotating shaft 302 is fixedly sleeved inside the crushing roller 301, and both ends of the rotating shaft 302 movably penetrate the box wall of the crushing box 2, one end of the rotating shaft 302 is fixedly connected to a gear 303, and the two gears 303 are meshed with each other, and a plurality of toggle rods 304 are fixed in an array on the side of the gear 303 away from the crushing box 2, a fixed plate 305 is fixedly connected to the box wall of one side of the crushing box 2, a first driving motor 306 is fixedly connected to the fixed plate 305, and the output shaft of the first driving motor 306 is fixedly connected to one of the gears 303, the first driving motor 306 drives one of the gears 303 to rotate, so that the two gears 303 will mesh and transmit, and the gear 303 will drive the crushing roller 301 to rotate through the rotating shaft 302, and the crushing roller 301 will crush the agglomerated cyanide tailings.

[0042] like Figure 6 and Figure 7As shown, the coarse screen assembly 4 includes a material receiving frame 401 fixedly connected to the inner wall of the crushing box 2, a first material guide plate 402 fixedly connected to the inner walls on both sides of the material receiving frame 401 is provided below the crushing roller 301, side plates 403 are fixedly connected to the two sides of the material receiving frame 401, a lifting rod 404 is movably penetrated inside the side plate 403, a coarse screen plate 405 is fixedly connected to the top of the lifting rod 404, a spring 406 sleeved on the outside of the lifting rod 404 is connected between the side plate 403 and the coarse screen plate 405, a toggle plate 407 fixedly connected to both sides of the coarse screen plate 405 is provided below the gear 303, and the toggle rod 304 intermittently toggles the toggle plate 407, a cross plate 408 is fixedly connected between the two toggle plates 407, and the cross plate 408 is fixedly connected between the two toggle plates 407. A second drive motor 409 is fixedly connected to the plate 408, and a screw 410 is fixedly connected to the output shaft of the second drive motor 409. A push plate 411 is provided on the external threaded sleeve of the screw 410, and the push plate 411 is in sliding contact with the inner walls on both sides of the coarse screen plate 405. When the gear 303 rotates, it also drives the toggle rod 304 to intermittently toggle the toggle plate 407, so that the toggle plate 407 will move up and down, thereby driving the coarse screen plate 405 to jump up and down for screening. After screening for a period of time, some materials that cannot be screened are accumulated on the coarse screen plate 405. At this time, the second drive motor 409 drives the screw 410 to rotate, and the rotation of the screw 410 will drive the push plate 411 to move and push the material on the coarse screen plate 405 to one side, so as to facilitate unloading.

[0043] like Figure 6 , Figure 7 and Figure 8As shown, the jumping dust suction component 5 includes a jumping rod 501 fixedly connected to the top of the toggle plate 407, the other end of the jumping rod 501 is fixedly connected to a first fixed pipe 502, one end of the first fixed pipe 502 is fixedly connected to an air suction pipe 503 communicated with it, both ends of the air suction pipe 503 are provided with guide plates 504 fixedly connected to the top of the crushing box 2, and the air suction pipe 503 slides on the surface of the guide plates 504, a second guide plate 505 is fixedly connected between the two guide plates 504, a shaking rod 506 is fixedly connected to the side of the second guide plate 505 close to the gear 303, and the teeth on the gear 303 intermittently toggle the shaking rod 506, and the end of the first fixed pipe 502 away from the air suction pipe 503 is fixedly connected to an air suction pump 507, and the air outlet of the air suction pump 507 is fixedly A second fixed pipe 508 is connected, and a blowing pipe 509 is fixedly connected to the bottom end of the second fixed pipe 508 and is connected thereto, and the blowing pipe 509 is located inside the crushing box 2. The up and down movement of the toggle plate 407 will drive the jumping rod 501 to move synchronously, and the jumping rod 501 will drive the first fixed pipe 502 to move up and down, and the first fixed pipe 502 will drive the suction pipe 503, the suction pump 507, the second fixed pipe 508 and the blowing pipe 509 to move synchronously. The suction pipe 503 will move up and down to adjust the dust suction range to prevent dust from escaping, and the blowing pipe 509 will always rise and fall synchronously with the coarse screen plate 405 and blow air. At the same time, the rotation of the gear 303 also intermittently toggle the shaking rod 506, thereby driving the second guide plate 505 to vibrate, thereby helping the material between the second guide plates 505 to slide down.

[0044] like Figure 7 and Fig. 9 As shown, the fine screen assembly 6 includes two fixed shafts 601 rotatably arranged on the lifting rod 404, a fine screen plate 602 is fixedly connected between the two fixed shafts 601, and elastic bands 603 are fixedly connected to the bottom sides of the fine screen plate 602. Two fixed seats 604 are fixedly sleeved on the lifting rod 404, and the bottom ends of the elastic bands 603 are fixedly connected to the fixed seats 604. A swing shaft 605 is movably penetrated on the fixed seat 604, and two V-shaped frames 606 are fixedly sleeved on the outer fixed sleeve of the swing shaft 605. One end of the swing shaft 605 is fixedly connected to a swing gear 607, and the swing gear 607 is A rack 608 is provided on one side, which is fixedly connected to the material receiving frame 401, and the swing gear 607 is meshed with the rack 608 for transmission. The lifting rod 404 moves up and down and also drives the fixed shaft 601, the fine screen plate 602 and the fixed seat 604 to rise and fall synchronously, and the fixed seat 604 drives the swing shaft 605 and the swing gear 607 to rise and fall, and the swing gear 607 rises and falls and rotates along the rack 608, which drives the swing shaft 605 to rotate back and forth, and the swing shaft 605 drives the V-frame 606 to swing, and the V-frame 606 squeezes the fine screen plate 602, thereby driving the fine screen plate 602 to swing.

[0045] like Figure 8As shown, a plurality of suction holes are arranged in an array on the suction pipe 503, and a plurality of blowing holes are arranged in an array on the blowing pipe 509. The suction holes are used to suck air and remove dust, while the blowing holes are used to blow air and remove dust.

[0046] like Figure 7 As shown, a lifting hole is opened on the side plate 403 , and the lifting rod 404 movably passes through the lifting hole, and the lifting hole plays a guiding role for the lifting rod 404 .

[0047] like Figure 1 As shown, a receiving box 7 is provided below the fine screen assembly 6 , and the cyanide tailings after fine screening directly fall into the receiving box 7 .

[0048] A method for recovering metals in cyanidation tailings, comprising the following steps:

[0049] Step 1: Add the agglomerated cyanide tailings into the crushing box 2, and crush the cyanide tailings by driving the crushing component 3;

[0050] Step 2: while driving the crushing component 3 to work, the jumping dust collecting component 5 is also driven to work. The jumping dust collecting component 5 not only shakes to assist the smooth feeding of the cyanide tailings, but also absorbs the flying dust;

[0051] Step 3: driving the crushing assembly 3 also drives the coarse screening assembly 4 to work, and the coarse screening assembly 4 performs coarse screening on the crushed and fallen cyanide tailings. During the coarse screening, the toggle rod 304 rotates with the gear 303 to intermittently squeeze the toggle plate 407 to lift and lower. When the toggle plate 407 is lifted and lowered, the side plate 403 and the lifting rod 404 are driven to lift and lower synchronously, and the side plate 403 drives the coarse screening plate 405 to lift and lower, thereby achieving the up and down shaking of the coarse screening plate 405 to help screening, and at the same time, the unscreened cyanide tailings on the coarse screening plate 405 can be pushed away from one side;

[0052] Step 4: When the coarse screen component 4 shakes up and down, it also drives the fine screen component 6 to work. The cyanide tailings after coarse screening will fall onto the fine screen component 6 for fine screening. During fine screening, the lifting rod 404 moves up and down and also drives the fixed shaft 601, the fine screen plate 602 and the fixed seat 604 to rise and fall synchronously, so that the fine screen plate 602 can shake up and down, and when the lifting rod 404 moves up and down, it also drives the swing shaft 605 and the swing gear 607 to move up and down. The swing gear 607 rises and falls along the rack 608 and rotates back and forth, which will drive the swing shaft 605 to rotate back and forth, and the swing shaft 605 will drive the fine screen plate 602 and the fixed shaft 601 to deflect back and forth, thereby realizing the shaking of the fine screen plate 602, thereby changing the inclination angle of the fine screen plate 602 for screening, and also allowing the cyanide tailings that fall on the fine screen plate 602 to be shaken and screened, and finally the screened cyanide tailings fall into the receiving box 7.

[0053] Working principle: add the agglomerated cyanide tailings between the two second guide plates 505 in the crushing box 2, and the first drive motor 306 drives one of the gears 303 to rotate, so that the two gears 303 will be meshed and transmitted, and the gear 303 drives the crushing roller 301 to rotate through the rotating shaft 302, and the crushing roller 301 will crush the agglomerated cyanide tailings. At the same time, the rotation of the gear 303 also intermittently toggles the shaking rod 506, thereby driving the second guide plate 505 to vibrate, thereby helping the second The material between the guide plates 505 slides down, and the gear 303 also drives the toggle rod 304 to intermittently toggle the toggle plate 407 when rotating, so that the toggle plate 407 will move up and down, thereby driving the coarse screen plate 405 to jump up and down for screening. After screening for a period of time, some material that cannot be screened is accumulated on the coarse screen plate 405. At this time, the second drive motor 409 drives the screw 410 to rotate, and the rotation of the screw 410 will drive the push plate 411 to move and push the material on the coarse screen plate 405 to one side to facilitate unloading.

[0054] The up and down movement of the toggle plate 407 will drive the jumping rod 501 to move synchronously, and the jumping rod 501 will drive the first fixed pipe 502 to move up and down, and the first fixed pipe 502 will drive the suction pipe 503, the suction pump 507, the second fixed pipe 508 and the blowing pipe 509 to move synchronously. The suction pipe 503 will move up and down to adjust the dust suction range to prevent dust from escaping, and the blowing pipe 509 will always rise and fall synchronously with the coarse screen plate 405 and blow air, so that it is convenient to concentrate the cyanide tailings in the middle and facilitate the screening of the cyanide tailings.

[0055] The lifting of the coarse screen plate 405 also drives the lifting rod 404 to lift synchronously, and the up and down movement of the lifting rod 404 also drives the fixed shaft 601, the fine screen plate 602 and the fixed seat 604 to lift synchronously, and the fixed seat 604 drives the swing shaft 605 and the swing gear 607 to lift, and the swing gear 607 lifts and rotates along the rack 608, which drives the swing shaft 605 to reciprocate, and the swing shaft 605 drives the V-shaped frame 606 to swing, and the V-shaped frame 606 squeezes the fine screen plate 602, thereby driving the fine screen plate 602 to swing. Since the V-frame 606 and the fine screen plate 602 are only released from contact but not fixed, the fine screen plate 602 is pulled to reset by the elastic band 603. Therefore, this solution performs jumping dust suction while crushing the agglomerated cyanide tailings to avoid dust flying, and blows air on both sides of the coarse screen plate, which makes it convenient for the cyanide tailings to be concentrated in the middle and convenient for the jumping screening of the cyanide tailings. At the same time, during fine screening, not only jumping screening can be performed, but also swinging can be performed, which facilitates more vibration modes of the cyanide tailings, thereby improving the screening efficiency.

[0056] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0057] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for recovering metals from cyanide tailings, comprising two support frames (1), a crushing box (2) being fixedly connected between the two support frames (1), characterized in that: A driven pulverizing assembly (3) is provided inside the pulverizing box (2), and the driven pulverizing assembly (3) is used to pulverize agglomerated cyanide tailings; a coarse screen assembly (4) is provided below the driven pulverizing assembly (3), and the coarse screen assembly (4) is used to coarsely screen the pulverized cyanide tailings; a fine screen assembly (6) is provided below the coarse screen assembly (4), and the fine screen assembly (6) is used to finely screen the coarsely screened cyanide tailings; and two jumping dust suction assemblies (5) are provided above the driven pulverizing assembly (3), and the jumping dust suction assemblies (5) are used to suction and suppress dust, and assist in feeding and coarse screening; The driving pulverizing assembly (3) comprises two crushing rollers (301) movably sleeved inside the crushing box (2); a rotating shaft (302) is fixedly sleeved inside the crushing rollers (301); and both ends of the rotating shaft (302) movably penetrate the wall of the crushing box (2); one end of the rotating shaft (302) is fixedly connected to a gear (303), and the two gears (303) are meshed with each other; a plurality of toggle rods (304) are fixedly arranged in an array on a side of the gear (303) away from the crushing box (2); a fixing plate (305) is fixedly connected to one side of the wall of the crushing box (2); a first driving motor (306) is fixedly connected to the fixing plate (305), and an output shaft of the first driving motor (306) is fixedly connected to one of the gears (303); The coarse screening assembly (4) comprises a material receiving frame (401) fixedly connected to the inner wall of the crushing box (2); a first material guide plate (402) fixedly connected to the inner walls of both sides of the material receiving frame (401) is provided below the crushing roller (301); side plates (403) are fixedly connected to both sides of the material receiving frame (401); a lifting rod (404) is movably provided inside the side plate (403); a coarse screening plate (405) is fixedly connected to the top of the lifting rod (404); a spring (406) sleeved on the outside of the lifting rod (404) is connected between the side plate (403) and the coarse screening plate (405); A toggle plate (407) fixedly connected to both sides of the coarse screen plate (405) is provided below the gear (303), and the toggle rod (304) intermittently toggles the toggle plate (407), a transverse plate (408) is fixedly connected between the two toggle plates (407), a second drive motor (409) is fixedly connected to the transverse plate (408), a screw (410) is fixedly connected to the output shaft of the second drive motor (409), a push plate (411) is provided on the external thread sleeve of the screw (410), and the push plate (411) is in sliding contact with the inner walls on both sides of the coarse screen plate (405); The jumping dust suction assembly (5) comprises a jumping rod (501) fixedly connected to the top of the toggle plate (407); the other end of the jumping rod (501) is fixedly connected to a first fixed pipe (502); one end of the first fixed pipe (502) is fixedly connected to an air suction pipe (503) in communication therewith; guide plates (504) fixedly connected to the top of the crushing box (2) are provided at both ends of the air suction pipe (503); the air suction pipe (503) slides on the surface of the guide plates (504); a second material guide plate (504) is fixedly connected between the two guide plates (504); 05), a shaking rod (506) is fixedly connected to one side of the second material guide plate (505) close to the gear (303), and the teeth on the gear (303) intermittently move the shaking rod (506), an end of the first fixed tube (502) away from the suction tube (503) is fixedly connected to an air suction pump (507), an air outlet of the suction pump (507) is fixedly connected to a second fixed tube (508), a bottom end of the second fixed tube (508) is fixedly connected to an air blowing tube (509) in communication therewith, and the air blowing tube (509) is located inside the crushing box (2); The fine screen assembly (6) comprises two fixed shafts (601) rotatably arranged on the lifting rod (404), a fine screen plate (602) is fixedly connected between the two fixed shafts (601), elastic bands (603) are fixedly connected to both sides of the bottom of the fine screen plate (602), two fixed seats (604) are fixedly sleeved on the lifting rod (404), and the bottom ends of the elastic bands (603) are fixedly connected to the fixed seats (604), a swing shaft (605) is movably penetrated on the fixed seats (604), two V-shaped frames (606) are fixedly sleeved on the outer side of the swing shaft (605), one end of the swing shaft (605) is fixedly connected to a swing gear (607), one side of the swing gear (607) is provided with a rack (608) fixedly connected to the material receiving frame (401), and the swing gear (607) and the rack (608) are meshed for transmission.

2. The device for recovering metals from cyanide tailings according to claim 1, characterized in that: The air suction pipe (503) is provided with a plurality of air suction holes in an array, and the air blowing pipe (509) is provided with a plurality of air blowing holes in an array.

3. The device for recovering metals from cyanide tailings according to claim 1, characterized in that: A lifting hole is provided on the side plate (403), and the lifting rod (404) movably passes through the lifting hole.

4. The device for recovering metals from cyanide tailings according to claim 1, characterized in that: A material receiving box (7) is provided below the fine screen assembly (6).

5. A method for recovering metals from cyanide tailings according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: adding the agglomerated cyanide tailings into a crushing box (2), and driving the crushing component (3) to crush the cyanide tailings; Step 2: while driving the crushing component (3) to work, the jumping dust suction component (5) is also driven to work. The jumping dust suction component (5) not only shakes to assist the smooth feeding of the cyanide tailings, but also absorbs the floating dust; Step 3: driving the crushing component (3) and also driving the coarse screening component (4) to work, the coarse screening component (4) performs coarse screening on the crushed and fallen cyanide tailings. During the coarse screening, the toggle rod (304) rotates with the gear (303) to intermittently squeeze the toggle plate (407) to lift and lower. When the toggle plate (407) is lifted and lowered, it drives the coarse screening plate (405) and the lifting rod (404) to lift and lower synchronously, thereby achieving the coarse screening plate (405) shaking up and down to help screening, and at the same time, the unscreened cyanide tailings on the coarse screening plate (405) can be pushed away from one side; Step 4: The coarse screen component (4) vibrates up and down while driving the fine screen component (6) to work. The cyanide tailings after coarse screening will fall onto the fine screen component (6) for fine screening. During the fine screening, the lifting rod (404) moves up and down and drives the fixed shaft (601), the fine screen plate (602) and the fixed seat (604) to move up and down synchronously. In this way, the fine screen plate (602) can vibrate up and down, and the lifting rod (404) moves up and down and drives the swing shaft (605) and the swing gear (607) to move up and down. The swing gear (607) moves up and down along the rack (608) and rotates back and forth, which drives the swing shaft (605) to rotate back and forth. The swing shaft (605) drives the fine screen plate (602) and the fixed shaft (601) to deflect back and forth, thereby achieving the shaking of the fine screen plate (602). In this way, the inclination angle of the fine screen plate (602) is changed for screening, and the cyanide tailings falling on the fine screen plate (602) are also shaken and screened. Finally, the screened cyanide tailings fall into the receiving box (7).

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