CN217288789U - Comprehensive recovery system of gold cyanided tailings - Google Patents

Abstract

The present disclosure relates to a comprehensive recovery system of gold cyanided tailings, including: the device comprises a first ore pulp stirring tank, a first flotation machine, a first thickener, a first plate-and-frame filter press, a second thickener, a leaching tank, a second flotation machine, a third flotation machine and a fourth flotation machine. According to the technical scheme, the method includes the steps that firstly, a flotation machine is adopted to float and select mixed concentrate which simultaneously contains valuable elements such as gold, silver, sulfur, zinc, copper and lead from gold cyanidation tailings, then the mixed concentrate enters a thickener to be washed, produced noble liquid is replaced through a plate-and-frame filter press to produce gold mud, and then the gold mud is sequentially and respectively floated and recovered through three times of flotation to obtain sulfur concentrate, zinc concentrate, copper concentrate and lead concentrate.

Description

Comprehensive recovery system of gold cyanided tailings

Technical Field

The disclosure relates to the technical field of valuable element recovery, in particular to a comprehensive recovery system for gold cyanided tailings.

Background

At present, the production method for extracting gold from gold-bearing minerals mainly adopts a cyanidation gold extraction method. The tailings after gold is extracted by adopting a cyaniding gold extraction method still contain a small part of gold, and also contain valuable elements such as copper, lead, zinc, sulfur and the like, and the valuable elements have great utilization value, so that if the valuable elements can be recycled, the waste of resources can be reduced, and the valuable elements can be prevented from damaging the ecological environment after the tailings are discarded.

The existing recovery system for gold cyanidation tailings is mainly used for recovering incompletely extracted gold in the tailings, and has the advantages of low recovery rate and high recovery cost of valuable elements such as copper, lead, zinc, sulfur and the like, and the grade of recovered concentrate is lower.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a comprehensive recovery system of gold cyanidation tailing, this comprehensive recovery system can high-efficiently retrieve valuable elements such as gold, copper, lead, zinc and sulphur in the tailing.

In order to achieve the above objects, the present disclosure provides an integrated recovery system of gold cyanided tailings, comprising:

the first ore pulp stirring tank is used for receiving and mixing gold cyanided tailings;

a first flotation machine connected downstream of the first slurry agitation tank and used for sorting gold cyanided tailings, the first flotation machine having a bulk concentrate discharge port and a tailings discharge port;

the first thickener is connected to a bulk concentrate ore discharge port of the first flotation machine and is provided with an overflow port and a bottom flow port;

the first plate-and-frame filter press is connected to an overflow port of the first thickener and used for receiving the pregnant solution overflowing from the first thickener, the first plate-and-frame filter press is provided with a liquid outlet and a discharge port, and the discharge port of the first plate-and-frame filter press is used for discharging gold mud;

the second thickener is connected to the liquid outlet of the first plate-and-frame filter press and is used for receiving the barren solution overflowing from the first plate-and-frame filter press;

the leaching tank is connected to the underflow port of the first thickener and used for receiving the ore pulp concentrated by the first thickener and performing leaching operation, and the leaching tank is connected to the upstream of the second thickener;

a second flotation machine connected downstream of the second thickener, the second flotation machine having a concentrate discharge port and a tailings discharge port, the tailings discharge port of the second flotation machine for discharging sulfur concentrate;

the third flotation machine is connected to the concentrate discharge port of the second flotation machine and is provided with a concentrate discharge port and a tailing discharge port, and the tailing discharge port of the third flotation machine is used for discharging zinc concentrate; and

the fourth flotation machine is connected to the concentrate ore discharge mouth of third flotation machine, the third flotation machine has concentrate ore discharge mouth and tailing ore discharge mouth, and the concentrate ore discharge mouth of fourth flotation machine is used for discharging copper concentrate, the tailing ore discharge mouth of fourth flotation machine is used for discharging lead concentrate.

Optionally, the bulk concentrate ore discharge mouth of first flotation device is connected with the third thickener, the downstream junction of third thickener has the filter, the downstream junction of filter has second ore pulp stirred tank, the downstream junction of second ore pulp stirred tank has the hydrocyclone who has sand setting mouth and overflow mouth, hydrocyclone's sand setting mouth is connected to the upper reaches of ball mill, hydrocyclone's overflow mouth is connected to the upper reaches of first thickener, the ball mill is connected to the upper reaches of second ore pulp stirred tank.

Optionally, an overflow port of the first thickener is connected to a precious liquid pool, a downstream of the precious liquid pool is connected with a first chamber filter press, a downstream of the first chamber filter press is connected with a liquid storage pool, a downstream of the liquid storage pool is connected with a second plate-and-frame filter press, a downstream of the second plate-and-frame filter press is connected with a liquid purification pool, a downstream of the liquid purification pool is connected with a deoxygenation tower, and a downstream of the deoxygenation tower is connected to an upstream of the first plate-and-frame filter press.

Optionally, a third ore pulp stirring tank is connected to the downstream of the second thickener, a second box filter press is connected to the downstream of the third ore pulp stirring tank, a first double-machine stirring tank is connected to the downstream of the second box filter press, a fourth ore pulp stirring tank is connected to the downstream of the first double-machine stirring tank, and the fourth ore pulp stirring tank is connected to the upstream of the second flotation machine.

Optionally, a tailings discharge port of the second flotation machine is connected to a fourth thickener, a third chamber filter press is connected to the downstream of the fourth thickener, and the third chamber filter press produces the sulfur concentrate.

Optionally, a concentrate discharge port of the second flotation machine is connected to a fifth ore pulp stirring tank, a fourth chamber filter press is connected to the downstream of the fifth ore pulp stirring tank, a second dual-machine stirring tank is connected to the downstream of the fourth chamber filter press, a sixth ore pulp stirring tank is connected to the downstream of the second dual-machine stirring tank, and the sixth ore pulp stirring tank is connected to the upstream of the third flotation machine.

Optionally, a tailing discharge port of the third flotation machine is connected to a seventh ore pulp stirring tank, a fifth chamber filter press is connected to the downstream of the seventh ore pulp stirring tank, and the fifth chamber filter press produces the zinc concentrate.

Optionally, a concentrate discharge port of the third flotation machine is connected to an eighth ore pulp stirring tank, a downstream of the eighth ore pulp stirring tank is connected to a sixth chamber filter press, a downstream of the sixth chamber filter press is connected to a third duplex stirring tank, a downstream of the third duplex stirring tank is connected to a ninth ore pulp stirring tank, and the ninth ore pulp stirring tank is connected to an upstream of the fourth flotation machine.

Optionally, a concentrate discharge port of the fourth flotation machine is connected to a tenth slurry stirring tank, a seventh chamber filter press is connected to the downstream of the tenth slurry stirring tank, and the seventh chamber filter press produces the copper concentrate.

Optionally, a tailing discharge port of the fourth flotation machine is connected to an eleventh ore pulp stirring tank, an eighth chamber filter press is connected to the downstream of the eleventh ore pulp stirring tank, and the eighth chamber filter press produces the lead concentrate.

Through the technical scheme, the gold cyanided tailings are subjected to multiple times of flotation respectively after being pulped, the system disclosed by the invention can effectively separate and recover valuable elements such as gold, silver, sulfur, zinc, copper and lead in the gold cyanided tailings, the recovery cost is low, the recovery rate is high, and the grade of each recovered valuable element concentrate is high.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic diagram of an integrated recovery system for gold cyanidation tailings provided by an exemplary embodiment of the present disclosure;

fig. 2 is a process flow diagram of an integrated recovery system for gold cyanidation tailings provided by an exemplary embodiment of the present disclosure.

Description of the reference numerals

110 first pulp agitation tank 120 second pulp agitation tank

130 third pulp stirring tank 140 fourth pulp stirring tank

150 fifth pulp agitator tank 160 sixth pulp agitator tank

170 seventh pulp agitating tank 180 eighth pulp agitating tank

190 ninth pulp stirring tank 1100 tenth pulp stirring tank

1110 eleventh slurry mixing tank 210 first flotation machine

220 second flotation machine 230 third flotation machine

240 fourth flotation machine 310 first thickener

320 second thickener 330 third thickener

340 fourth thickener 410 first plate and frame filter press

420 second plate and frame filter press 5 leaching tank

6 filter 7 hydrocyclone

8 precious liquid pond of ball mill 910

920 liquid storage tank 930 liquid purifying tank

940 barren liquor pool 1010 first chamber type filter press

1020 second chamber filter press 1030 third chamber filter press

1040 fourth chamber filter press 1050 fifth chamber filter press

1060 sixth chamber filter press 1070 seventh chamber filter press

1080 eighth chamber filter press 11 deoxidation tower

1210 first twin agitating tank 1220 second twin agitating tank

1230 third double-machine stirring tank 13 belt conveyer

14 air compressor 15 numerical control dosing machine

10 gold mud 20 sulphur concentrate

30 zinc concentrate 40 copper concentrate

50 lead concentrate

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, "inner" and "outer" refer to the inner and outer of the respective component profiles, unless otherwise specified. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

Referring to fig. 1 and 2, the present embodiment provides an integrated recovery system for gold cyanidation tailings, which may include: the flotation device comprises a first ore pulp stirring tank 110, a first flotation machine 210, a first thickener 310, a first plate-and-frame filter press 410, a second thickener 320, a leaching tank 5, a second flotation machine 220, a third flotation machine 230 and a fourth flotation machine 240, wherein the first ore pulp stirring tank 110 is used for receiving and mixing gold cyanided tailings, before flotation, the gold cyanided tailings are required to be placed into the first ore pulp stirring tank 110, necessary flotation reagents such as a regulator, an inhibitor, a vulcanizing agent, a dispersing agent, an activator and a collecting agent are added into the ore pulp, stirring is carried out stage by stage, and the acid-base value or the inhibition, activation and collection effects of the reagents of the ore pulp are sequentially adjusted so that the ore pulp reaches a state suitable for flotation requirements; the first flotation machine 210 is connected to the downstream of the first pulp agitation tank 110 and is used for sorting the gold cyanided tailings, the gold cyanided tailings need to be subjected to a rough-sweeping-fine flotation process flow to sort out bulk concentrates and tailings, the first flotation machine 210 is provided with a bulk concentrate discharge port and a tailing discharge port, and tailings generated in the flotation operation are discharged through the tailing discharge port and conveyed to a tailing pond to be discharged; the first thickener 310 is connected to a mixed concentrate discharge port of the first flotation machine 210, the mixed concentrate is fed into the first thickener 310 for washing, wherein the first thickener 310 is a high-efficiency thickener, and the first thickener 310 is provided with an overflow port and a bottom flow port; first plate and frame filter press 410 is connected to the overflow mouth of first thickener 310 for receive the pregnant solution through the overflow of first thickener 310 outflow, the pregnant solution is the liquid that the gold-bearing ore flows through the decomposition promptly, and first plate and frame filter press 410 has liquid outlet and bin outlet, and the pregnant solution is by bin outlet output gold mud 10 after first plate and frame filter press 410 replacement. A liquid outlet of the chamber filter press 4 is connected to the ore pulp stirring tank 1 so as to return filtrate generated by dehydration operation to the ore pulp stirring tank 1 before flotation operation for continuous size mixing; the second thickener 320 is connected to the liquid outlet of the first plate-and-frame filter press 410 and is used for receiving and washing the barren liquor overflowing from the first plate-and-frame filter press 410, the barren liquor refers to liquid with little or no recovery value, a barren liquor pool 940 is connected with the downstream of the liquid outlet of the first plate-and-frame filter press 410, the barren liquor in the barren liquor pool 940 is fed into the second thickener 320 through a barren liquor pump, and the second thickener 320 is a three-layer thickener; the leaching tank 5 is connected to the bottom flow port of the first thickener 310, the leaching tank 5 is connected to the upstream of the second thickener 320, the underflow ore pulp washed by the first thickener 310 is pumped into the leaching tank 5 for leaching, the ore pulp washed by the leaching operation is fed into the second thickener 320 for washing, and the overflow water washed by the second thickener 320 is returned to the first thickener 310 as additional water. The leaching tank 5 can be selected as a pneumatic stirring leaching tank, the upstream of the pneumatic stirring leaching tank is connected with an air compressor 14, the air compressor 14 provides oxygen for the pneumatic stirring leaching tank so as to ensure the requirement of leaching operation, the upstream of the pneumatic stirring leaching tank is also connected with a numerical control dosing machine 15, and in the embodiment of the disclosure, a sodium cyanide solution is selected as a leaching agent to be added into the numerical control dosing machine 15 and then added into the leaching tank 5; the second flotation machine 220 is connected to the downstream of the second thickener 320, the underflow slurry washed by the second thickener 320 is fed into the second flotation machine 220 for flotation (including roughing, scavenging and concentrating), the second flotation machine 220 is provided with a concentrate discharge port and a tailing discharge port, the tailing discharge port of the second flotation machine 220 is used for discharging sulfur concentrate 20, and the sulfur concentrate 20 is transported to a sulfur concentrate storage yard through a belt conveyor 13; the third flotation machine 230 is connected to the concentrate discharge port of the second flotation machine 220, the flotation concentrate produced through the concentrate discharge port of the second flotation machine 220 is fed into the third flotation machine 230 for flotation operation, the third flotation machine 230 has a concentrate discharge port and a tailing discharge port, the tailing discharge port of the third flotation machine 230 is used for discharging zinc concentrate 30, and the zinc concentrate 30 is transported to a zinc concentrate storage yard through the belt conveyer 13; the fourth flotation machine 240 is connected to the concentrate discharge port of the third flotation machine 230, the flotation concentrate produced through the concentrate discharge port of the third flotation machine 230 enters the fourth flotation machine 240 for flotation, the third flotation machine 230 has the concentrate discharge port and a tailing discharge port, the concentrate discharge port of the fourth flotation machine 240 is used for discharging the copper concentrate 40, the copper concentrate 40 is transported to the copper concentrate storage yard through the belt conveyer 13, the tailing discharge port of the fourth flotation machine 240 is used for discharging the lead concentrate 50, and the lead concentrate 50 is transported to the lead concentrate storage yard through the belt conveyer 13.

According to the technical scheme, the method includes the steps that firstly, a flotation machine is adopted to float and select mixed concentrate which simultaneously contains valuable elements such as gold, silver, sulfur, zinc, copper and lead from gold cyanidation tailings, then the mixed concentrate enters a thickener to be washed, produced noble liquid is replaced through a plate-and-frame filter press to produce gold mud, and then the gold mud is sequentially and respectively floated and recovered through three times of flotation to obtain sulfur concentrate, zinc concentrate, copper concentrate and lead concentrate.

As an exemplary embodiment of the present disclosure, referring to fig. 1, a third thickener 330 is connected to a bulk concentrate discharge port of the first flotation machine 210, and after the bulk concentrate is concentrated by feeding the bulk concentrate into the third thickener 330, the overflow water returns to the first pulp stirring tank 110, the bottom flow is pumped into the filter 6 for dehydration, the filter 6 can be a ceramic filter, the ore pulp dehydrated by the filter 6 is fed into the second ore pulp stirring tank 120 for size mixing by the belt conveyer 13, the ore pulp after size mixing is fed into the hydrocyclone 7 by the pump for classification operation, the settled sand discharged from the settled sand port of the hydrocyclone 7 is fed into the ball mill 8 for grinding, here, the ball mill 8 may be an overflow type ball mill, the ground slurry is fed into the second slurry agitation tank 120, and the overflow discharged from the overflow port of the hydrocyclone 7 is fed into the first thickener 310 to be washed, so that the pregnant solution can overflow.

Further, referring to fig. 1, the pregnant solution flowing out of the overflow port of the first thickener 310 enters the pregnant solution tank 910, the downstream of the pregnant solution tank 910 is connected with a first chamber filter press 1010, the liquid flowing out after being dehydrated by the first chamber filter press 1010 enters the liquid storage tank 920, the downstream of the liquid storage tank 920 is connected with a second plate and frame filter press 420, the liquid flowing out after being dehydrated by the second plate and frame filter press 420 enters the clean liquid tank 930, the downstream of the clean liquid tank 930 is connected with the deoxygenation tower 11, and the liquid after being deoxygenated by the deoxygenation tower 11 enters the first plate and frame filter press 410 for replacement to produce gold mud 10.

Referring to fig. 1, the underflow slurry washed by the second thickener 320 is fed into the third slurry stirring tank 130, a second chamber filter press 1020 is connected to the downstream of the third slurry stirring tank 130, the filtrate produced by the treatment of the second chamber filter press 1020 is returned to the second thickener 320 by a filtrate pump, a first double-machine stirring tank 1210 is connected to the downstream of the second chamber filter press 1020, the slurry is subjected to pre-flotation pulp conditioning treatment by the first double-machine stirring tank 1210, a fourth slurry stirring tank 140 is connected to the downstream of the first double-machine stirring tank 1210, and the slurry treated by the fourth slurry stirring tank 140 is fed into the second flotation machine 220 for flotation.

According to some embodiments, referring to fig. 1, after the flotation tailings discharged from the tailings discharge port of the second flotation machine 220 are pumped into the fourth thickener 340 for concentration, the flotation tailings are pumped into the third chamber filter press 1030 for dehydration treatment, so as to produce a sulfur concentrate 20, and the sulfur concentrate 20 is transported to a sulfur concentrate storage yard through the belt conveyor 13. In addition, the filtrate dehydrated by the third chamber filter press 1030 is returned to the fourth thickener 340 for continuous use.

Specifically, referring to fig. 1, the flotation concentrate discharged from the concentrate discharge port of the second flotation machine 220 is fed into the fifth slurry agitation tank 150, a fourth chamber filter press 1040 is connected downstream of the fifth slurry agitation tank 150, a second dual-machine agitation tank 1220 is connected downstream of the fourth chamber filter press 1040, a sixth slurry agitation tank 160 is connected downstream of the second dual-machine agitation tank 1220, and the sixth slurry agitation tank 160 is connected upstream of the third flotation machine 230 to perform the flotation operation. The filtrate after the dehydration operation by the fourth chamber filter press 1040 is returned to the first two-machine agitation tank 1210 by the filtrate pump.

As an exemplary embodiment of the present disclosure, referring to fig. 1, a tailing discharge port of the third flotation machine 230 is connected to the seventh slurry stirring tank 170, a fifth chamber filter press 1050 is connected to a downstream of the seventh slurry stirring tank 170, the flotation concentrate is fed into the fifth chamber filter press 1050 through a filter press feeding pump to be dehydrated, so as to produce the zinc concentrate 30, and the zinc concentrate 30 is transported to the zinc concentrate storage yard through the belt conveyor 13. The filtrate after the dehydration operation by the fifth chamber filter press 1050 is returned to the second twin agitator tank 1220 by the filtrate pump.

Referring to fig. 1, the flotation concentrate discharged from the concentrate discharge port of the third flotation machine 230 enters the eighth slurry mixing tank 180 and is fed into the sixth chamber filter press 1060 through the filter press feed pump, the downstream of the sixth chamber filter press 1060 is connected with the third dual-machine mixing tank 1230, the downstream of the third dual-machine mixing tank 1230 is connected with the ninth slurry mixing tank 190, and the ninth slurry mixing tank 190 is connected to the upstream of the fourth flotation machine 240 for flotation operation. The filtrate after the dehydration operation by the sixth chamber filter press 1060 is returned to the second twin agitator tank 1220 by the filtrate pump.

According to an exemplary embodiment of the present disclosure, referring to fig. 1, the flotation concentrate discharged from the concentrate discharge port of the fourth flotation machine 240 enters the tenth slurry mixing tank 1100, and further, is fed into the seventh chamber filter press 1070 through the filter press feed pump to be dehydrated, so as to produce the copper concentrate 40, and the copper concentrate 40 is transported to the copper concentrate storage yard through the belt conveyor 13. The filtrate after the dehydration operation by the seventh chamber filter press 1070 is returned to the third two-machine agitation tank 1230 by the filtrate pump.

Further, referring to fig. 1, the flotation tailings discharged from the tailing discharge port of the fourth flotation machine 240 enter the eleventh slurry stirring tank 1110, and further enter the eighth chamber filter press 1080 through the filter press feeding pump to perform a dewatering operation, so as to produce the lead concentrate 50, and the lead concentrate 50 is transported to the lead concentrate storage yard through the belt conveyor 13. In addition, the filtrate after the dehydration operation by the eighth chamber filter press 1080 is returned to the third two-machine stirring tank 1230 by the filtrate pump for recycling.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. An integrated recovery system for gold cyanided tailings, which is characterized by comprising:

a first pulp stirring tank (110) for receiving and size mixing gold cyanided tailings;

a first flotation machine (210) connected downstream of the first slurry agitation tank (110) and used for sorting gold cyanidation tailings, the first flotation machine (210) having a bulk concentrate discharge and a tailings discharge;

a first thickener (310) connected to a bulk concentrate discharge of the first flotation machine (210), the first thickener (310) having an overflow and a underflow opening;

the first plate-and-frame filter press (410) is connected to an overflow port of the first thickener (310) and is used for receiving the pregnant solution overflowing from the first thickener (310), the first plate-and-frame filter press (410) is provided with a liquid outlet and a discharge port, and the discharge port of the first plate-and-frame filter press (410) is used for discharging gold mud (10);

a second thickener (320) connected to the outlet of the first plate and frame filter press (410) for receiving the barren liquor overflowing the first plate and frame filter press (410);

a leaching tank (5) connected to the underflow port of the first thickener (310) for receiving the slurry concentrated by the first thickener (310) and performing leaching operation, wherein the leaching tank (5) is connected to the upstream of the second thickener (320);

a second flotation machine (220) connected downstream of the second thickener (320), the second flotation machine (220) having a concentrate discharge and a tailings discharge, the tailings discharge of the second flotation machine (220) being for discharge of a sulfur concentrate (20);

a third flotation machine (230) connected to the concentrate discharge of the second flotation machine (220), the third flotation machine (230) having a concentrate discharge and a tailings discharge, the tailings discharge of the third flotation machine (230) for discharging zinc concentrate (30); and

a fourth flotation machine (240) connected to the concentrate discharge of the third flotation machine (230), the third flotation machine (230) having a concentrate discharge and a tailing discharge, the concentrate discharge of the fourth flotation machine (240) being for discharging copper concentrate (40), the tailing discharge of the fourth flotation machine (240) being for discharging lead concentrate (50).

2. The comprehensive recovery system of gold cyanidation tailings of claim 1, wherein the bulk concentrate discharge outlet of the first flotation machine (210) is connected with a third thickener (330), the downstream of the third thickener (330) is connected with a filter (6), the downstream of the filter (6) is connected with a second slurry stirring tank (120), the downstream of the second slurry stirring tank (120) is connected with a hydrocyclone (7) with a sand settling port and an overflow port, the sand settling port of the hydrocyclone (7) is connected to the upstream of a ball mill (8), the overflow port of the hydrocyclone (7) is connected to the upstream of the first thickener (310), and the ball mill (8) is connected to the upstream of the second slurry stirring tank (120).

3. The comprehensive recovery system of gold cyanidation tailings of claim 1, wherein an overflow port of the first thickener (310) is connected to a precious liquid pool (910), a first chamber filter press (1010) is connected to the downstream of the precious liquid pool (910), a liquid pool (920) is connected to the downstream of the first chamber filter press (1010), a second plate-and-frame filter press (420) is connected to the downstream of the liquid pool (920), a clean liquid pool (930) is connected to the downstream of the second plate-and-frame filter press (420), a deoxygenation tower (11) is connected to the downstream of the clean liquid pool (930), and the downstream of the deoxygenation tower (11) is connected to the upstream of the first plate-and-frame filter press (410).

4. The comprehensive recovery system of gold cyanidation tailings of claim 1, wherein a third slurry stirring tank (130) is connected downstream of the second thickener (320), a second chamber filter press (1020) is connected downstream of the third slurry stirring tank (130), a first double-machine stirring tank (1210) is connected downstream of the second chamber filter press (1020), a fourth slurry stirring tank (140) is connected downstream of the first double-machine stirring tank (1210), and the fourth slurry stirring tank (140) is connected upstream of the second flotation machine (220).

5. The integrated recovery system of gold cyanidation tailings according to claim 1, wherein a tailings discharge port of the second flotation machine (220) is connected to a fourth thickener (340), and a third chamber filter press (1030) is connected downstream of the fourth thickener (340), and the sulfur concentrate (20) is produced by the third chamber filter press (1030).

6. The integrated recovery system of gold cyanidation tailings according to claim 1, wherein the concentrate discharge port of the second flotation machine (220) is connected to a fifth chamber filter press (150), a fourth chamber filter press (1040) is connected downstream of the fifth chamber filter press (150), a second dual-machine agitation tank (1220) is connected downstream of the fourth chamber filter press (1040), a sixth slurry agitation tank (160) is connected downstream of the second dual-machine agitation tank (1220), and the sixth slurry agitation tank (160) is connected upstream of the third flotation machine (230).

7. The integrated recovery system of gold cyanidation tailings according to claim 1, characterized in that a tailing discharge port of the third flotation machine (230) is connected to a seventh slurry stirring tank (170), and a fifth chamber filter press (1050) is connected downstream of the seventh slurry stirring tank (170), and the zinc concentrate (30) is produced by the fifth chamber filter press (1050).

8. The comprehensive recovery system of gold cyanidation tailings of claim 1, wherein a concentrate discharge port of the third flotation machine (230) is connected to an eighth chamber filter press (180), a sixth chamber filter press (1060) is connected downstream of the eighth chamber filter press (180), a third double-machine agitation tank (1230) is connected downstream of the sixth chamber filter press (1060), a ninth chamber agitation tank (190) is connected downstream of the third double-machine agitation tank (1230), and the ninth chamber filter press (190) is connected upstream of the fourth flotation machine (240).

9. The integrated recovery system of gold cyanidation tailings according to claim 1, wherein the concentrate discharge port of the fourth flotation machine (240) is connected to a tenth pulp stirring tank (1100), and a seventh chamber filter press (1070) is connected downstream of the tenth pulp stirring tank (1100), and the copper concentrate (40) is produced by the seventh chamber filter press (1070).

10. The comprehensive recovery system of gold cyanidation tailings of claim 1, wherein a tailings discharge port of the fourth flotation machine (240) is connected to an eleventh slurry stirring tank (1110), an eighth chamber filter press (1080) is connected downstream of the eleventh slurry stirring tank (1110), and the lead concentrate (50) is produced by the eighth chamber filter press (1080).

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