CN216573552U - Comprehensive treatment system for gold tailings - Google Patents

Abstract

The utility model discloses a gold tailing comprehensive treatment system, the underflow opening of a desliming bucket is connected with a hindered settling machine, the overflow opening of the hindered settling machine is connected with a buffer pool, the underflow opening is connected with a cylindrical deslagging screen, the underflow opening of the cylindrical deslagging screen is connected with a high-gradient vertical ring magnetic separator, a first discharge pipe of the high-gradient vertical ring magnetic separator is connected with a first swirler, and a second discharge pipe is connected with a second swirler; the first cyclone is connected with a first thickener through an overflow pipe, the first cyclone is connected with a belt filter press through an underflow pipe, and the first thickener is connected with the belt filter press; the first thickener is also connected with a buffer pool; the second cyclone is connected with the buffer tank and a high-frequency vibrating screen; the high-frequency vibrating screen is respectively connected with a buffer pool. By means of the recycling and harmless treatment subsystems of the tailings, the gold tailings are utilized in multiple stages to produce coarse sand, feldspar concentrate, magnetic separation minerals and other products, the economic benefit of mine enterprises is improved, and zero emission of the mine tailings is realized.

Description

Comprehensive treatment system for gold tailings

Technical Field

The utility model relates to a gold tailing integrated processing system.

Background

A large amount of tailings are generated in the gold mine mining and dressing process, and particularly, the amount of tailings is increased along with the gradual reduction of ore grade in recent years. As the prior art, the treatment mode for the gold tailings generally includes the following types: the first type: the tailings are discharged to a tailing pond for stockpiling by adopting a traditional wet discharge method, and most of the middle-sized and small-sized mines adopt the treatment mode, so that the main defects of the treatment mode are that the potential safety hazard of dam break exists and certain influence is caused on the environment ecology. The second type: the tailings are filled into a goaf underground, which is a mainstream tailing treatment method advocated at present. Because the output rate of the tailings reaches about 99 percent and the unit weight of the raw ore and the tailings is obviously different, the tailings are difficult to be completely used for filling an underground goaf, namely, the mine is difficult to realize the mining and filling balance. In the third category: the curing and stacking are used for land reclamation, or pouring materials are prepared after treatment, but the methods usually have difficult economic benefits due to high treatment cost and have low popularization value for mines.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a gold tailing integrated processing system, realize the multistage comprehensive utilization of gold tailing in order to improve mine economic benefits to reach innocent treatment's purpose.

The utility model provides a technical scheme as follows:

gold tailing integrated processing system, including desliming fill and buffer pool, its characterized in that: the bottom flow port of the mud removing hopper is connected with a hindered settling machine through a pipeline, the overflow port of the hindered settling machine is connected with the buffer pool through a pipeline, the bottom flow port of the hindered settling machine is connected with a cylindrical deslagging screen through a pipeline, and the bottom flow port of the cylindrical deslagging screen is connected with a high-gradient vertical ring magnetic separator through a pipeline; the high-gradient vertical ring magnetic separator is provided with a first discharge pipe of the magnetic separator, the first discharge pipe is connected with a first swirler, the high-gradient vertical ring magnetic separator is also provided with a second discharge pipe of the magnetic separator, and the second discharge pipe is connected with a second swirler through a pipeline; the first cyclone is connected with a first thickener through an overflow pipe, the first cyclone is connected with a belt filter press through an underflow pipe, and the first thickener is connected with the underflow pipe of the first cyclone through the underflow pipe or directly connected with the belt filter press; an overflow port of the first thickener is connected with the buffer tank; an overflow port of the second cyclone is connected with the buffer pool; the underflow pipe of the second cyclone is connected with a high-frequency vibrating screen; the high-frequency vibrating screen is connected with the buffer pool through a water drainage pipe.

Preferably, the buffer tank is connected with a second thickener through a pipeline, a bottom flow port of the second thickener is connected with a plate and frame filter press through a pipeline, and the plate and frame filter press is connected with a sedimentation tank through a pipeline; and an overflow port of the second thickener is connected with the sedimentation tank through a pipeline.

Further preferably, the overflow port of the desliming hopper is higher than the buffer pool; the feeding position of the hindered settling machine is lower than the underflow port of the desliming hopper; the overflow port of the hindered settling machine is higher than the buffer pool; the bottom flow port of the hindered settling machine is higher than the cylindrical deslagging screen; the bottom flow port of the cylindrical deslagging screen is higher than the high-gradient vertical ring magnetic separator; the overflow port of the first thickener is higher than the buffer tank; the bottom flow port of the first cyclone and the bottom flow port of the first thickener are both higher than the feed inlet of the belt filter press; the overflow port of the second cyclone is higher than the buffer pool; the position of the underflow opening of the second cyclone is higher than that of the high-frequency vibrating screen; the position of the sedimentation tank is lower than the water outlet of the plate and frame filter press; the position of an overflow port of the second thickener is higher than that of the sedimentation tank.

The utility model has the advantages of:

first, the utility model discloses with the help of each tailing resource utilization and innocent treatment subsystem, with gold tailing multilevel utilization, products such as output coarse sand, feldspar concentrate and magnetic separation mineral have improved the economic benefits of mine enterprise. Second, the utility model discloses with tailing thick liquid and relevant overflow tailing under the high frequency vibration sieve screen through the thickener after concentrated filter-pressing become fine mud tailing filter cake under the effect of plate and frame filter press, fine mud tailing filter cake can be used to produce building products such as cement brick after certain processing, the return water then returns sedimentation tank recycle. The zero emission of the mine tailings is realized, and the national requirements on clean production of mines are met. Third, the utility model discloses a design of relevant equipment relative position height, system's processing procedure thick liquids and water realize the conveying through flowing automatically, have saved installation, use and the maintenance cost of pump.

Drawings

Fig. 1 is a schematic diagram of the structure and process flow of the system of the present invention.

In the figure, 1-a concentrating mill, 2-a slurry pump, 3-a desliming hopper, 4-a hindered settling machine, 5-a cylindrical deslagging screen, 6-a high-gradient vertical ring magnetic separator, 7-a first discharge pipe of a magnetic separator, 8-a second discharge pipe of the magnetic separator, 9-a first thickener, 10-a first cyclone, 11-a belt filter press, 12-a high-frequency vibrating screen, 13-a second cyclone, 14-a second cyclone overflow pipe, 15-a buffer tank, 16-a second thickener, 17-a plate-and-frame filter press and 18-a sedimentation tank.

Detailed Description

The invention will be further described with reference to the following examples and the accompanying drawings.

As fig. 1, the embodiment of the utility model discloses an overflow mouth position including desliming fill 3 and buffer pool 15 and desliming fill 3 is higher than buffer pool 15, and the inlet pipe of desliming fill 3 is connected with slurry pump 2, and slurry pump 2 carries the tailing thick liquid of ore dressing plant 1 output to desliming fill 3, and the overflow tailing of desliming fill 3 flows to buffer pool 15 by oneself. The underflow port of the desliming bucket 3 is connected with a hindered settling machine 4 with the position lower than the underflow port through a pipeline, and the underflow of the desliming bucket 3 automatically flows to the hindered settling machine 4 under the action of gravity to carry out coarse and fine particle classification. The overflow port of the hindered settling machine 4 is higher than the buffer pool 15, the overflow port of the hindered settling machine 4 is connected with the buffer pool 15 through a pipeline, and the overflow of the hindered settling machine 4 automatically flows to the buffer pool 15. The bottom flow port of the hindered settling machine 4 is connected with a cylindrical deslagging screen 5 which is lower than the bottom flow port through a pipeline, and the bottom flow of the hindered settling machine 4 is coarsely removed through the cylindrical deslagging screen 5 to obtain a coarse sand product. The underflow port of the cylindrical deslagging screen 5 is connected with a high-gradient vertical-ring magnetic separator 6 with the position lower than the underflow port through a pipeline, undersize tailing slurry of the cylindrical deslagging screen 5 automatically flows into the high-gradient vertical-ring magnetic separator 6, and nonmagnetic products and magnetic products are obtained after magnetic separation. The high-gradient vertical ring magnetic separator 6 is provided with a first discharge pipe 7 of the magnetic separator, the first discharge pipe 7 is connected with a first swirler 10 as a non-magnetic product discharge pipeline, the high-gradient vertical ring magnetic separator 6 is further provided with a second discharge pipe 8 of the magnetic separator, and the second discharge pipe 8 is connected with a second swirler 13 as a magnetic product discharge pipeline.

An overflow pipe of the first cyclone 10 is connected with a first thickener 9, an underflow pipe of the first cyclone 10 is connected with a belt filter press 11, and the underflow pipe of the first thickener 9 is connected with the underflow pipe of the first cyclone 10 or directly connected with the belt filter press 11. The overflow of the first thickener 9 is located higher than the buffer tank 15 and the overflow of the first thickener 9 is connected to the buffer tank 15 via a pipe (this pipe is omitted in fig. 1). Concentrating, press-filtering and dehydrating the nonmagnetic product to obtain feldspar concentrate. The underflow port of the first cyclone 10 and the underflow port of the first thickener 9 are both higher than the feed inlet of the belt filter press 11.

The overflow of the second cyclone 13 is located above the buffer reservoir 15 and the overflow of the second cyclone 13 is connected to the buffer reservoir 15 via a second cyclone overflow 14. The underflow pipe of the second cyclone 13 is connected with a high frequency vibration screen 12 which is positioned lower than the underflow port of the second cyclone 13. The magnetic product is classified by the second cyclone 13 and then conveyed to the high-frequency vibrating screen 12 for dehydration, the product on the screen is magnetic separation mineral, and the magnetic separation mineral can be returned to the concentrating mill 1 for concentrating again to obtain beneficial metal mineral, and can also be directly transported for sale. The discharge port of the high-frequency vibration sieve 12 is positioned higher than the buffer pool 15 and the high-frequency vibration sieve 12 is connected to the buffer pool 15 through a discharge pipe.

In order to perform further harmless treatment on undersize tailings and overflow tailings and realize zero emission of the tailings, the buffer tank 15 is connected with a second thickener 16 through a pipeline, a bottom flow port of the second thickener 16 is connected with a plate and frame filter press 17 through a pipeline, and the plate and frame filter press 17 is connected with a sedimentation tank 18 with a position lower than a water outlet of the plate and frame filter press through a pipeline. The overflow of the second thickener 16 is located higher than the sedimentation tank 18 and the overflow of the second thickener 16 is connected to the sedimentation tank 18 by a pipe (the pipe is omitted in fig. 1). After the tailings in the buffer pool 15 are concentrated by a thickener 16, the underflow is subjected to fine mud tailings dehydration by a plate and frame filter press 17 to form a fine mud tailings filter cake. The return water is returned to the sedimentation tank 19 for recycling.

Claims (3)

1. Gold tailing integrated processing system, including taking off mud bucket (3) and buffer pool (15), its characterized in that: the bottom flow port of the desliming hopper (3) is connected with a hindered settling machine (4) through a pipeline, the overflow port of the hindered settling machine (4) is connected with the buffer pool (15) through a pipeline, the bottom flow port of the hindered settling machine (4) is connected with a cylindrical deslagging screen (5) through a pipeline, and the bottom flow port of the cylindrical deslagging screen (5) is connected with a high-gradient vertical ring magnetic separator (6) through a pipeline; the high-gradient vertical ring magnetic separator (6) is provided with a first discharge pipe (7) of the magnetic separator, the first discharge pipe (7) is connected with a first swirler (10), the high-gradient vertical ring magnetic separator (6) is also provided with a second discharge pipe (8) of the magnetic separator, and the second discharge pipe (8) is connected with a second swirler (13) through a pipeline; the first cyclone (10) is connected with a first thickener (9) through an overflow pipe, the first cyclone (10) is connected with a belt filter press (11) through an underflow pipe, and the first thickener (9) is connected with the underflow pipe of the first cyclone (10) through the underflow pipe or directly connected with the belt filter press (11); an overflow port of the first thickener (9) is connected with the buffer pool (15); the overflow port of the second cyclone (13) is connected with the buffer pool (15); the underflow pipe of the second cyclone (13) is connected with a high-frequency vibrating screen (12); the high-frequency vibrating screen (12) is connected with the buffer pool (15) through a water drainage pipe.

2. The comprehensive treatment system for gold tailings of claim 1, wherein: the buffer tank (15) is connected with a second thickener (16) through a pipeline, a bottom flow port of the second thickener (16) is connected with a plate and frame filter press (17) through a pipeline, and the plate and frame filter press (17) is connected with a sedimentation tank (18) through a pipeline; the overflow port of the second thickener (16) is connected with the sedimentation tank (18) through a pipeline.

3. The comprehensive treatment system for gold tailings of claim 2, wherein: the overflow port of the desliming hopper (3) is higher than the buffer pool (15); the feeding position of the hindered settling machine (4) is lower than the underflow port of the desliming hopper (3);

the overflow port of the hindered settling machine (4) is higher than the buffer pool (15); the bottom flow port of the hindered settling machine (4) is higher than the cylindrical deslagging screen (5); the bottom flow port of the cylindrical deslagging screen (5) is higher than the high-gradient vertical ring magnetic separator (6); the overflow port of the first thickener (9) is higher than the buffer pool (15); the underflow opening of the first cyclone (10) and the underflow opening of the first thickener (9) are both higher than the feed inlet of the belt filter press (11); the overflow port of the second cyclone (13) is higher than the buffer pool (15); the position of a bottom flow opening of the second cyclone (13) is higher than that of the high-frequency vibrating screen (12); the position of the sedimentation tank (18) is lower than the water outlet of the plate-and-frame filter press; the overflow port of the second thickener (16) is higher than the sedimentation tank (18).

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