Gold concentrate cyanidation tailing treatment device and volatilization method thereof

Abstract

The invention relates to the technical field of tailing treatment devices, in particular to a gold concentrate cyanidation tailing treatment device which comprises a first fixing frame, a conveying mechanism is arranged at the top of the first fixing frame, a dewatering mechanism is arranged at the top of the conveying mechanism, and a discharging hopper is arranged at the discharging end of the conveying mechanism. One side of the first fixing frame is fixedly connected with a second fixing frame, and the top of the second fixing frame is provided with a drying mechanism. According to the method for improving the volatilization rate of the gold concentrate cyanidation tailings, the cyanidation recovery rate is improved by improving and perfecting the production process, and the cyanidation recovery rate reaches above%.

Description

Technical Field

[0001] The invention relates to the technical field of tailings treatment devices, in particular to a gold concentrate cyanidation tailings treatment device and a volatilization method thereof. Background Art

[0002] With the large-scale mining of gold mines, the world's easily processable gold resources are decreasing, and difficult-to-process gold mines will become the main mineral resources of the gold industry in the future. Gold mines with an average gold grade of 50-60g / t are suitable for direct cyanidation system treatment. In addition to gold and silver, their gold concentrates also contain a certain amount of valuable metals such as copper, lead, and zinc.

[0003] After two-stage roasting-acid leaching-cyanide leaching of arsenic-sulfur-containing refractory gold ore, the tailings often contain 3-10g / t of gold and 30-60% of other valuable metal elements such as iron, copper, lead, and zinc. Conventional methods cannot effectively recover gold and it can only be used for building materials, waste storage or landfill. High-temperature chlorination volatilization utilizes the characteristics of metal chlorides, which generally have low boiling points and are easy to volatilize, and chlorides are easy to decompose at high temperatures. The chlorinating agent is used to make the valuable metals form chlorides that volatilize into the flue gas for recovery, while the gangue remains in the tailings. At temperatures greater than 800°C and in the presence of a chlorinating agent, some metals such as tin, lead, gallium, copper, zinc, gold, and silver and their sulfides and oxides can react with the chlorinating agent to form volatile metal chlorides.

[0004] In the prior art, after the gold concentrate is directly cyanided to extract gold and silver, the cyanidation tailings are successively subjected to lead and copper selection processes to obtain lead concentrate containing more than 40% lead and copper concentrate containing more than 10% copper. The lead concentrate is sent to a lead smelter, and the copper concentrate is sent to a copper smelter or roasted by sulfuric acid and acid leaching. Extraction and electrowinning produce qualified cathode copper.

[0005] When the gold concentrate cyanide tailings are treated by the hydrogenation reduction method of sodium thioantimonite leaching solution, the method has the disadvantages of slow reduction speed and high production cost, and cannot improve the effect of gold concentrate cyanide tailings treatment. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a gold concentrate cyanidation tailings processing device, which solves the problems raised in the background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a gold concentrate cyanide tailings treatment device and a volatilization method thereof, comprising a first fixed frame, a conveying mechanism is arranged on the top of the first fixed frame, a dehydration mechanism is arranged on the top of the conveying mechanism, a discharge hopper is arranged at the discharge end of the conveying mechanism, a second fixed frame is fixedly connected to one side of the first fixed frame, and a drying mechanism is arranged on the top of the second fixed frame;

[0008] One side of the second fixed frame is fixedly connected to the third fixed frame, and one side of the third fixed frame is fixedly connected to the vibrating screen mechanism.

[0009] The conveying mechanism includes a first driving motor fixedly connected to one end of the top of the first fixed frame, a driving turntable fixedly connected to the driving end of the first driving motor, a belt drivingly connected to the outer side of the driving turntable, a driven turntable drivingly connected to the bottom end of the belt, a main roller fixedly connected to one side of the driven turntable, a plurality of slave rollers movably connected between the bottom ends of the first fixed frame, and a conveyor belt drivingly connected to the outer sides of the main roller and the plurality of slave rollers.

[0010] Preferably, the dehydration mechanism includes a mixing and stirring box fixedly connected to the top of the first fixed frame, two fixed plates are fixedly connected between the tops of the mixing and stirring box, a second drive motor is fixedly connected to the top of each of the fixed plates, a stirring shaft is fixedly connected to the transmission end of the second drive motor, a stirring blade is provided at the bottom of the stirring shaft, two dehydration shells are through-connected on one side of the mixing box, a third drive motor is fixedly connected to one end of each of the dehydration shells, a dehydration roller is fixedly connected to the transmission end of the third drive motor, and a dehydration rotating frame is fixedly connected to the outer side of the dehydration roller.

[0011] Preferably, the drying mechanism comprises a feeding rack fixedly connected to the inside of the second fixed frame, a first servo motor fixedly connected to one side of the feeding rack, a first main roller fixedly connected to the driving end of the first servo motor, a first slave roller arranged at the other end of the feeding rack, and a feeding belt drivingly connected to the outer sides of the first main roller and the first slave roller;

[0012] A heating box is fixedly connected to one side of the top of the second fixed frame, a second servo motor is fixedly connected to one side of the top of the heating box, a first small turntable is fixedly connected to the transmission end of the second servo motor, an outer side of the first small turntable is transmission-connected with an adjusting belt, a bottom end of the adjusting belt is movably connected to the second small turntable, one side of the second small turntable is fixedly connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a fan blade, a heating rod is fixedly connected to the inside of the heating box, and an air outlet is provided at the bottom of the heating box.

[0013] Preferably, the vibrating screen mechanism includes a plurality of telescopic springs fixedly connected to both ends of the bottom of the third fixed frame, the top of the telescopic springs is fixedly connected to a vibrating screen shell, the bottom side of the vibrating screen shell is fixedly connected to a vibrator, and a vibrating screen mesh plate is provided on the top of the vibrating screen shell, and a plurality of openings are provided on the surface of the vibrating screen mesh plate.

[0014] Preferably, a gold concentrate cyanide tailings processing device and a volatilization method thereof include the following steps:

[0015] Step 1: Select ore samples: The ore samples used are from the slag after roasting-acid leaching-cyanidation-dehydration-drying of gold concentrate, with a water content of 15.08%, a gold grade of 6.25g / t, a silver grade of 10.10g / t, a sulfur content of 1.6%, and an iron content of 33%;

[0016] Calcination: Use No. 3 clay crucible as the calcination vessel, take the raw balls that are dried by the grate machine at the production site and screened by the vibrating screen to obtain the qualified particle size;

[0017] Step 2: Granulation: Use a disc granulator to make balls, add a binder bentonite, calcined at 1150°C, 2h, 7% CaCl2, 1% bentonite;

[0018] The raw balls obtained by the on-site granulator are pre-screened by a roller screen, dried by a chain grate machine, and then sent to a vibrating screen for inspection and screening. The raw balls dried on the production site are screened by 14mm, 12mm, 10mm, and 8mm.

[0019] Step 3: The chlorinating agent is 5% NaCl or 3% NaCl+2% CaCl2 or 5% CaCl2.

[0020] Step 4: Selection of roasting temperature: roasting at 800°C for 60 min; roasting at 1150°C for 40 min; continuously heating and cooling from 800°C to 1150°C to 950°C for 60-40-50 min.

[0021] Step 5: The gold concentrate is mainly composed of pyrite and is associated with chalcopyrite and sphalerite.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a gold concentrate cyanide tailings processing device and a volatilization method thereof:

[0024] 1. When treating the cyanide tailings of gold concentrate, the cyanide tailings of gold concentrate are put into the mixing and stirring box, and the two second driving motors on the top of the fixed plate rotate to drive the stirring shaft to rotate. The rotation of the two stirring shafts drives the stirring blades to mix and stir the cyanide tailings of gold concentrate in the mixing and stirring box, so as to facilitate dispersion and drainage. The rotation of the third driving motor on one side of the dehydration shell drives the corresponding dehydration roller to rotate, so as to dehydrate the cyanide tailings of gold concentrate in the dehydration shell.

[0025] 2. When treating the cyanide tailings of gold concentrate, in order to prevent the cyanide tailings of gold concentrate from being too large and uneven in size, they are dried by a drying mechanism and then fall onto the vibrating screen mesh plate on the vibrating screen shell. The vibrating screen mesh plate has a number of openings to facilitate vibrating and filtering of the cyanide tailings of gold concentrate of different particle sizes. The vibrator is vibrated to adjust the particles of the cyanide tailings of gold concentrate on the vibrating screen mesh plate.

[0026] 3. The method of the present invention for increasing the volatilization rate of gold concentrate cyanidation tailings improves and perfects the production process, thereby increasing the cyanidation recovery rate to more than 87%. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the dehydration mechanism structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the conveying mechanism of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the vibrating screen mechanism of the present invention;

[0031] Figure 5 It is a schematic diagram of the drying mechanism structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the fan blade structure of the present invention;

[0033] Figure 7 It is a schematic diagram of the active turntable structure of the present invention.

[0034] In the figure: 1, first fixed frame; 101, discharge hopper; 102, second fixed frame; 103, third fixed frame; 2, conveying mechanism; 201, first driving motor; 202, driving turntable; 203, belt; 204, driven turntable; 205, main roller; 206, slave roller; 207, conveyor belt; 3, dehydration mechanism; 301, mixing and stirring box; 302, fixed plate; 303, second driving motor; 304, stirring shaft; 305, stirring blade; 306, dehydration shell; 307, third driving motor; 308, dehydration turntable Roller; 309, dehydration rotating frame; 4, drying mechanism; 401, feeding rack; 402, first servo motor; 403, first main roller; 404, first slave roller; 405, feeding belt; 406, heating box; 407, second servo motor; 408, first small turntable; 409, adjustment belt; 4091, second small turntable; 4092, fan blade; 4093, heating rod; 4094, air outlet; 5, vibrating screen mechanism; 501, telescopic spring; 502, vibrating screen shell; 503, vibrator; 504, vibrating screen mesh plate; 505, opening. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. 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] like Figure 1-Figure 7 As shown, a gold concentrate cyanide tailings processing device proposed by the present invention comprises a first fixed frame 1, a conveying mechanism 2 is arranged on the top of the first fixed frame 1, a dehydration mechanism 3 is arranged on the top of the conveying mechanism 2, a discharge hopper 101 is arranged at the discharge end of the conveying mechanism 2, a second fixed frame 102 is fixedly connected to one side of the first fixed frame 1, and a drying mechanism 4 is arranged on the top of the second fixed frame 102;

[0040] One side of the second fixed frame 102 is fixedly connected to the third fixed frame 103 , and one side of the third fixed frame 103 is fixedly connected to the vibrating screen mechanism 5 .

[0041] The conveying mechanism 2 includes a first driving motor 201 fixedly connected to one end of the top of the first fixed frame 1, a driving turntable 202 fixedly connected to the driving end of the first driving motor 201, a belt 203 drivingly connected to the outer side of the driving turntable 202, a driven turntable 204 drivingly connected to the bottom end of the belt 203, a main roller 205 fixedly connected to one side of the driven turntable 204, a plurality of slave rollers 206 movably connected between the bottom ends of the first fixed frame 1, and a conveyor belt 207 drivingly connected to the outer sides of the main roller 205 and the outer sides of the plurality of slave rollers 206.

[0042] During specific use, the rotation of the first driving motor 201 drives the active turntable 202 to rotate, so that the first driving motor 201 provides the power for conveying. At the same time, the rotation of the active turntable 202 drives the driven turntable 204 at the bottom of the belt 203 to rotate, so that the main roller 205 can rotate under the rotation of the driven turntable 204, so that the cooperation of the driven roller 205 and the main roller 206 can rotate and drive the conveyor belt 207. The conveyance of the conveyor belt 207 facilitates the transportation and processing of the cyanide tailings of the gold concentrate.

[0043] The dehydration mechanism 3 includes a mixing and stirring box 301 fixedly connected to the top of the first fixed frame 1, two fixed plates 302 are fixedly connected between the tops of the mixing and stirring box 301, a second drive motor 303 is fixedly connected to the top of each fixed plate 302, a stirring shaft 304 is fixedly connected to the transmission end of the second drive motor 303, a stirring blade 305 is arranged at the bottom of the stirring shaft 304, two dehydration shells 306 are through-connected to one side of the mixing box, one end of each dehydration shell 306 is fixedly connected to the third drive motor 307, a dehydration roller 308 is fixedly connected to the transmission end of the third drive motor 307, and a dehydration rotating frame 309 is fixedly connected to the outer side of the dehydration roller 308.

[0044] During specific use, when treating the cyanide tailings of gold concentrate, the cyanide tailings of gold concentrate are placed inside the mixing and stirring box 301, and the two second driving motors 303 on the top of the fixed plate 302 are rotated to drive the stirring shaft 304 to rotate. The rotation of the two stirring shafts 304 can drive the stirring blades 305 to mix and stir the cyanide tailings of gold concentrate inside the mixing and stirring box 301, so as to facilitate dispersion and drainage. The rotation of the third driving motor 307 on one side of the dehydration shell 306 can drive the corresponding dehydration roller 308 to rotate, so as to dehydrate the cyanide tailings of gold concentrate inside the dehydration shell 306 for use.

[0045] The drying mechanism 4 includes a feeding rack 401 fixedly connected to the inside of the second fixed frame 102, a first servo motor 402 fixedly connected to one side of the feeding rack 401, a first main roller 403 fixedly connected to the driving end of the first servo motor 402, a first slave roller 404 provided at the other end of the feeding rack 401, and a feeding belt 405 drivingly connected to the outer sides of the first main roller 403 and the first slave roller 404;

[0046] A heating box 406 is fixedly connected to one side of the top of the second fixed frame 102, a second servo motor 407 is fixedly connected to one side of the top of the heating box 406, a first small turntable 408 is fixedly connected to the transmission end of the second servo motor 407, an outer side of the first small turntable 408 is transmission-connected to an adjusting belt 409, a second small turntable 4091 is movably connected to the bottom end of the adjusting belt 409, one side of the second small turntable 4091 is fixedly connected to another side of a rotating shaft, one end of the rotating shaft is fixedly connected to a fan blade 4092, a heating rod 4093 is fixedly connected to the inside of the heating box 406, and an air outlet 4094 is provided at the bottom of the heating box 406.

[0047] During specific use, the first servo motor 402 is set to rotate to drive the first main roller 403 to rotate, so that the first main roller 403 drives the feeding belt 405 to rotate while rotating, so that the gold concentrate cyanide tailings pass through the drying mechanism 4 and are dried and dehydrated at the same time, and the first small turntable 408 is driven to rotate by the rotation of the second servo motor 407, and the adjustment belt 409 is rotated by the rotation of the first small turntable 408, which is convenient for driving the second small turntable 4091 to rotate, and at the same time drives the rotation shaft to rotate, so as to facilitate driving the fan blade 4092 to rotate, so that the hot air emitted by the heating rod 4093 inside the heating box 406 is discharged, and the gold concentrate cyanide tailings on the adjustment belt 409 are treated through the air outlet 4094.

[0048] The vibrating screen mechanism 5 includes a plurality of telescopic springs 501 fixedly connected to both ends of the bottom of the third fixed frame 103, a vibrating screen shell 502 fixedly connected to the top of the telescopic spring 501, a vibrating screen shell 502 fixedly connected to the bottom side of the vibrating screen shell 502, a vibrator 503 fixedly connected, a vibrating screen mesh plate 504 is arranged on the top of the vibrating screen shell 502, and a plurality of openings 505 are opened on the surface of the vibrating screen mesh plate 504.

[0049] During specific use, when treating the cyanide tailings of gold concentrate, in order to prevent the cyanide tailings of gold concentrate from being too large in size, after being dried by the drying mechanism 4, the tailings fall onto the vibrating screen mesh plate 504 on the vibrating screen shell 502. By setting a plurality of openings 505 on the vibrating screen mesh plate 504, it is convenient to vibrate and filter the cyanide tailings of gold concentrate of different particle sizes. The vibration of the vibrator 503 allows the particles of the cyanide tailings of gold concentrate on the vibrating screen mesh plate 504 to be vibrated and adjusted.

[0050] A method for volatilizing gold concentrate cyanide tailings, comprising the following steps:

[0051] Step 1: Select ore samples: The ore samples used are from the slag after roasting-acid leaching-cyanidation-dehydration-drying of gold concentrate, with a water content of 15.08%, a gold grade of 6.25g / t, a silver grade of 10.10g / t, a sulfur content of 1.6%, and an iron content of 33%;

[0052] Calcination: Use No. 3 clay crucible as the calcination vessel, take the raw balls that are dried by the grate machine at the production site and screened by the vibrating screen to obtain the qualified particle size;

[0053] Step 2: Granulation: Use a disc granulator to make balls, add a binder bentonite, calcined at 1150°C, 2h, 7% CaCl2, 1% bentonite;

[0054] The raw balls obtained by the on-site granulator are pre-screened by a roller screen, dried by a chain grate machine, and then sent to a vibrating screen for inspection and screening. The raw balls dried on the production site are screened by 14mm, 12mm, 10mm, and 8mm.

[0055] Step 3: The chlorinating agent is 5% NaCl or 3% NaCl+2% CaCl2 or 5% CaCl2.

[0056] Step 4: Selection of roasting temperature: roasting at 800°C for 60 min; roasting at 1150°C for 40 min; continuously heating and cooling from 800°C to 1150°C to 950°C for 60-40-50 min.

[0057] Step 5: Gold concentrate refers to gold concentrate mainly composed of pyrite, accompanied by chalcopyrite and sphalerite.

[0058] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0059] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A gold concentrate cyanide tailings processing device, comprising a first fixed frame (1), characterized in that: A conveying mechanism (2) is arranged on the top of the first fixed frame (1), a dehydrating mechanism (3) is arranged on the top of the conveying mechanism (2), a discharging hopper (101) is arranged at the discharging end of the conveying mechanism (2), a second fixed frame (102) is fixedly connected to one side of the first fixed frame (1), and a drying mechanism (4) is arranged on the top of the second fixed frame (102); One side of the second fixed frame (102) is fixedly connected to a third fixed frame (103), and one side of the third fixed frame (103) is fixedly connected to a vibrating screen mechanism (5).

2. A gold concentrate cyanide tailings treatment device according to claim 1, characterized in that: The conveying mechanism (2) comprises a first driving motor (201) fixedly connected to one end of the top of the first fixed frame (1); a driving turntable (202) fixedly connected to the driving end of the first driving motor (201); a belt (203) drivingly connected to the outer side of the driving turntable (202); a driven turntable (204) drivingly connected to the bottom end of the belt (203); a main rotating roller (205) fixedly connected to one side of the driven turntable (204); a plurality of driven rotating rollers (206) movably connected between the bottom ends of the first fixed frame (1); and a conveying belt (207) drivingly connected to the outer sides of the main rotating roller (205) and the plurality of driven rotating rollers (206).

3. A gold concentrate cyanide tailings treatment device according to claim 1, characterized in that: The dehydration mechanism (3) comprises a mixing and stirring box (301) fixedly connected to the top of the first fixed frame (1); two fixed plates (302) are fixedly connected between the tops of the mixing and stirring box (301); a second drive motor (303) is fixedly connected to the top of each of the fixed plates (302); a stirring shaft (304) is fixedly connected to the driving end of the second drive motor (303); a stirring blade (305) is arranged at the bottom of the stirring shaft (304); two dehydration shells (306) are connected through one side of the mixing box; one end of each of the dehydration shells (306) is fixedly connected to a third drive motor (307); a dehydration roller (308) is fixedly connected to the driving end of the third drive motor (307); a dehydration rotating frame (309) is fixedly connected to the outer side of the dehydration roller (308).

4. A gold concentrate cyanide tailings treatment device according to claim 1, characterized in that: The drying mechanism (4) comprises a feeding rack (401) fixedly connected to the inside of the second fixed frame (102), a first servo motor (402) fixedly connected to one side of the feeding rack (401), a first main roller (403) fixedly connected to the driving end of the first servo motor (402), a first slave roller (404) provided at the other end of the feeding rack (401), and a feeding belt (405) drivingly connected to the outer sides of the first main roller (403) and the first slave roller (404).

5. The gold concentrate cyanide tailings processing device according to claim 1, characterized in that: A heating box (406) is fixedly connected to one side of the top of the second fixed frame (102), a second servo motor (407) is fixedly connected to one side of the top of the heating box (406), a first small turntable (408) is fixedly connected to a driving end of the second servo motor (407), an outer side of the first small turntable (408) is transmission-connected to an adjusting belt (409), a bottom end of the adjusting belt (409) is movably connected to a second small turntable (4091), one side of the second small turntable (4091) is fixedly connected to another side of a rotating shaft, one end of the rotating shaft is fixedly connected to a fan blade (4092), a heating rod (4093) is fixedly connected to the inside of the heating box (406), and an air outlet (4094) is provided at the bottom of the heating box (406).

6. The gold concentrate cyanide tailings processing device according to claim 1, characterized in that: The vibrating screen mechanism (5) comprises a plurality of telescopic springs (501) fixedly connected to both ends of the bottom of the third fixed frame (103); the top of the telescopic springs (501) is fixedly connected to a vibrating screen housing (502); a vibrator (503) is fixedly connected to one side of the bottom of the vibrating screen housing (502); a vibrating screen mesh plate (504) is provided on the top of the vibrating screen housing (502); and a plurality of openings (505) are provided on the surface of the vibrating screen mesh plate (504).

7. A gold concentrate cyanide tailings treatment device and a volatilization method thereof, comprising the gold concentrate cyanide tailings treatment device described in 1-6 above, characterized in that: The steps include: Step 1: Select ore samples: The ore samples used are from the slag after roasting-acid leaching-cyanidation-dehydration-drying of gold concentrate, with a water content of 15.08%, a gold grade of 6.25g / t, a silver grade of 10.10g / t, a sulfur content of 1.6%, and an iron content of 33%; Calcination: Use No. 3 clay crucible as the calcination vessel, take the raw balls that are dried by the grate machine at the production site and screened by the vibrating screen to obtain the qualified particle size; Step 2: Granulation: Use a disc granulator to make balls, add a binder bentonite, calcined at 1150°C, 2h, 7% CaCl2, 1% bentonite; The raw balls obtained by the on-site granulator are pre-screened by a roller screen, dried by a chain grate machine, and then sent to a vibrating screen for inspection and screening. The raw balls dried on the production site are screened by 14mm, 12mm, 10mm, and 8mm. Step 3: The chlorinating agent is 5% NaCl or 3% NaCl+2% CaCl2 or 5% CaCl2. Step 4: Selection of roasting temperature: roasting at 800°C for 60 min; roasting at 1150°C for 40 min; continuously heating and cooling from 800°C to 1150°C to 950°C for 60-40-50 min. Step 5: The gold concentrate is mainly composed of pyrite and is associated with chalcopyrite and sphalerite.

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