CN218910457U

CN218910457U - Leaching tank

Info

Publication number: CN218910457U
Application number: CN202223048148.1U
Authority: CN
Inventors: 钱虎; 李建辉; 国洪柱; 吴圣贤; 徐忠敏; 李雪林; 徐怀浩; 李俊杰; 张志鹏; 贾旭光
Original assignee: Zhaojin Mining Industry Co ltd
Current assignee: Zhaojin Mining Industry Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-04-25
Anticipated expiration: 2032-11-16

Abstract

The application discloses a leaching tank, which belongs to the technical field of metal compound production and comprises a tank body, wherein the lower end part of the tank body is communicated with a mineral inlet pipe, and the upper end part of the tank body is communicated with a mineral outlet pipe; the mixing mechanism is arranged in the tank body and comprises an air disc and a sodium cyanide disc, the air disc is positioned below the sodium cyanide disc, and an outlet of the ore inlet pipe is positioned between the air disc and the sodium cyanide disc; the air disk upwards opens a plurality of air nozzles that are used for importing the air to the cell body, and the sodium cyanide disk downwards opens a plurality of sodium cyanide nozzles that are used for importing the sodium cyanide to the cell body. The ore pulp is input between the air and the sodium cyanide input position, so that the ore pulp, the air and the free cyanide are fully contacted and mixed, the air, the cyanide and the ore pulp are convenient to react with each other, and the leaching rate is improved.

Description

Leaching tank

Technical Field

The application relates to the technical field of metal compound production, in particular to a leaching tank.

Background

Gold leaching is an important link in the gold extraction process by the cyanide method, and the leaching effect directly influences the cyanide recovery rate. When gold in solid state is immersed in cyanide solution, in order to enable gold to be dissolved quickly, operators need to mix ore pulp, air and free cyanide in the leaching tank sufficiently in the leaching tank to obtain a higher leaching rate.

The related art with the prior publication number of CN211411977U discloses a leaching tank which comprises a shell, a circulating pipe, an isolating sleeve and a screen plate. The shell surrounds and defines the accommodation space and includes top, reaction portion and the bottom of interconnect from top to bottom, still including setting up in the bottom and can supply the reaction gas import that reaction gas got into to and set up in the top and can supply the feed inlet that metal raw materials and ammonium bicarbonate solution got into. The circulating pipe is fixedly arranged in the shell and corresponds to the reaction part and the bottom. The isolation sleeve is fixed in the reaction part and surrounds the circulating pipe.

Aiming at the related technology, when solid minerals, gaseous air and liquid cyanide solution are mixed for reaction, three reaction raw materials are difficult to fully contact and react with each other, the contact and mixing ratio of the minerals with the air and free cyanide is low in the leaching process, and the leaching rate of gold is low.

Disclosure of Invention

The application provides a leaching tank to the defect that prior art exists, makes air, cyanide and ore pulp can intensive mixing reaction.

The technical scheme for solving the technical problems is as follows:

the leaching tank comprises a tank body, wherein the lower end part of the tank body is communicated with a mineral inlet pipe, and the upper end part of the tank body is communicated with a mineral outlet pipe; the mixing mechanism comprises an air disc and a sodium cyanide disc, the air disc is positioned below the sodium cyanide disc, and an outlet of the ore inlet pipe is positioned between the air disc and the sodium cyanide disc; the air disk upwards has seted up a plurality of air nozzles that are used for importing the air to the cell body, the sodium cyanide disk downwards has seted up a plurality of sodium cyanide nozzles that are used for importing the sodium cyanide to the cell body.

Through adopting above-mentioned technical scheme, when carrying out the cyanidation to mineral, operating personnel inputs the cell body from advancing ore deposit pipe with the ore pulp, and at this moment, air nozzle upwards inputs air, and sodium cyanide nozzle downwards inputs sodium cyanide, makes ore pulp can be located between air and the sodium cyanide, can make ore pulp, air and free cyanide fully contact and mix, and air, cyanide and ore pulp interact of being convenient for, and then reaches the effect that improves the leaching rate.

Furthermore, the side wall of the tank body is provided with a sodium cyanide input pipe in a penetrating way, wherein the sodium cyanide input pipe is used for inputting sodium cyanide to the sodium cyanide nozzle, and the side wall of the tank body is provided with an air input pipe in a penetrating way, and the air input pipe is used for inputting air to the air nozzle.

Further, the sodium cyanide tray comprises a plurality of sodium cyanide diffusion pipes, the sodium cyanide nozzles are positioned on the lower end face of the sodium cyanide diffusion pipes, and the sodium cyanide nozzles on each sodium cyanide diffusion pipe are sequentially distributed along the length direction of the sodium cyanide diffusion pipe; the air disk comprises a plurality of air diffusion pipes, the air nozzles are located on the upper end faces of the air diffusion pipes, and the air nozzles on each air diffusion pipe are sequentially distributed along the length direction of each air diffusion pipe.

Further, the sodium cyanide diffusion tube and the air diffusion tube are arranged along the radial line direction of the groove body.

Further, the included angle between adjacent sodium cyanide diffusion pipes is the same, and the included angle between adjacent air diffusion pipes is the same.

Further, a high-pressure air pipe for inputting air into the tank body is arranged in the tank body, and a sodium cyanide pipe for inputting sodium cyanide into the tank body is sleeved outside the high-pressure air pipe.

Further, the mixing mechanism comprises a stirring shaft and stirring wings, one end of the stirring shaft is fixedly connected with the stirring wings, and the end part, far away from the stirring wings, of the stirring shaft is rotationally connected with the tank body.

Further, the inner wall of the tank body is fixedly provided with a plurality of current stabilizing plates which are arranged along the vertical direction.

In summary, compared with the prior art, the beneficial effects of the technical scheme are as follows:

when carrying out the cyanidation to the mineral, operating personnel inputs the cell body with the ore pulp from advancing ore deposit pipe, and at this moment, air nozzle upwards inputs air, and sodium cyanide nozzle downwardly input sodium cyanide makes the ore pulp can be located between air and the sodium cyanide, can make ore pulp, air and free cyanide fully contact and mix, and air, cyanide and ore pulp interact of being convenient for, and then reaches the effect that improves the leaching rate.

Drawings

FIG. 1 is a schematic view of the overall structure in an embodiment of the present application;

FIG. 2 is a schematic view of the structure of an air nozzle and an air inlet pipe according to an embodiment of the present application;

FIG. 3 is a schematic diagram of the structure of a sodium cyanide diffusion tube and a sodium cyanide input tube according to an embodiment of the present application;

fig. 4 is a schematic top view of a sodium cyanide tube and a high-pressure air duct according to an embodiment of the present application.

Reference numerals illustrate: 1. a tank body; 2. a mineral inlet pipe; 3. a ore discharge pipe; 4. an air tray; 41. an air diffusion tube; 5. a sodium cyanide tray; 51. a sodium cyanide diffusion tube; 6. an air nozzle; 7. a sodium cyanide nozzle; 8. a sodium cyanide input tube; 9. an air input pipe; 10. a high-pressure air duct; 11. a sodium cyanide tube; 12. an air outlet; 13. a liquid outlet; 14. a stirring shaft; 15. stirring wings; 16. a stirring motor; 17. a speed reducer; 18. a steady flow plate; 19. a first support beam; 20. and a second support beam.

Detailed Description

The principles and features of the present application are described below with reference to the drawings, the examples are illustrated for the purpose of explanation only and are not intended to limit the scope of the present application.

The embodiment of the application discloses a leaching tank. Referring to fig. 1, a leaching tank comprises a tank body 1, wherein a mineral inlet pipe 2 is communicated with the lower end part of the tank body 1, and a mineral outlet pipe 3 is communicated with the upper end part of the tank body 1. When the cyanide treatment is carried out on minerals, an operator inputs ore pulp into the tank body 1 from the ore inlet pipe 2, and the reacted materials are discharged from the tank body 1 from the ore outlet pipe 3.

The leaching tank adopts the mode of ore pulp 'entering downwards and exiting upwards', so that ore pulp enters from the lower end part of the tank body 1, overflows from the upper end part of the tank body 1 to the next flow, and can make the ore pulp fully contact and react with the reaction raw materials in the tank body 1, and simultaneously, the materials and reaction waste materials which are not fully reacted at the bottom end of the tank body 1 are not easy to enter into the next flow.

Referring to fig. 1 to 3, a mixing mechanism is arranged in a tank body 1, the mixing mechanism comprises an air disc 4 and a sodium cyanide disc 5, the air disc 4 and the sodium cyanide disc 5 are in the same shape and are opposite to each other, the air disc 4 is positioned below the sodium cyanide disc 5, and an outlet of a mineral inlet pipe 2 is positioned between the air disc 4 and the sodium cyanide disc 5; the air disk 4 is provided with a plurality of air nozzles 6 for inputting air into the tank body 1 upwards, and the sodium cyanide disk 5 is provided with a plurality of sodium cyanide nozzles 7 for inputting sodium cyanide into the tank body 1 downwards.

In the embodiment of the application, the distance between the air disc 4 and the bottom surface of the tank body 1 is specifically set to 20-30 cm, and the distance between the air disc 4 and the sodium cyanide disc 5 is specifically set to 40 cm. The air disk 4 is closer to the bottom surface of the tank body 1, can play a role in pushing up ore pulp at the bottom of the tank body 1, and is arranged at the positions of the air disk 4 and the sodium cyanide disk 5, so that the ore pulp is not easy to precipitate at the bottom of the tank body 1.

When carrying out the cyanidation to mineral, operating personnel will ore pulp from advancing ore deposit pipe 2 input cell body 1, and at this moment, air nozzle 6 upwards inputs air, and sodium cyanide nozzle 7 downwards inputs sodium cyanide, and the ore pulp of input is located between air input port and the sodium cyanide input port, can make ore pulp, air and free cyanide fully contact and mix, and air, cyanide and ore pulp interact of being convenient for, and then reaches the effect that improves the leaching rate.

The lateral wall of the tank body 1 is penetrated with an air input pipe 9 for inputting air to the air nozzle 6, one end of the air input pipe 9 is fixedly connected with the central position of the air disk 4, the other end of the air input pipe 9 is positioned outside the tank body 1, the air input pipe 9 is communicated with the air disk 4, and the air input pipe 9 adopts a high-pressure air inlet mode to carry out air conveying operation.

When carrying out the cyanation to mineral, operating personnel lets in air in the air input pipe 9, and air moves fast along air input pipe 9 and gets into in the air dish 4, and then exports from air nozzle 6 and get into in the cell body 1, and at this moment, the air can float under the effect of buoyancy, carries out mixing stirring operation to sodium cyanide and ore pulp, makes the ore pulp be difficult for settling in cell body 1 bottom simultaneously, and then makes ore pulp, air and free cyanide contact mix that can be abundant.

The air disk 4 comprises a plurality of air diffusion pipes 41, the air nozzles 6 are located on the upper end faces of the air diffusion pipes 41, each air diffusion pipe 41 is provided with a plurality of air nozzles 6, and the air nozzles 6 are sequentially distributed along the length direction of the air diffusion pipe 41. In the embodiment of the present application, the air diffusion pipes 41 are provided in eight, the shapes of the respective air diffusion pipes 41 are the same, and the spacing between the adjacent air nozzles 6 is specifically set to 20-30 cm.

Each air diffusion tube 41 is arranged along the radial line direction of the tank body 1, and the included angles between the adjacent air diffusion tubes 41 are the same. The plurality of air diffusion tubes 41 increases the air input range, thereby increasing the contact area of the pulp, air and free cyanide, enabling the pulp, air and free cyanide to be fully contacted and mixed, and facilitating the mutual reaction of the air, cyanide and pulp.

The air diffusion pipes 41 are connected with the inner wall of the tank body 1 through the first support cross beams 19, the end part, far away from the air input pipe 9, of each air diffusion pipe 41 is fixedly provided with the first support cross beams 19, and one end, far away from the air diffusion pipes 41, of each first support cross beam 19 is fixedly connected with the inner wall of the tank body 1. The plurality of first supporting beams 19 are matched with each other, so that the air diffusion pipes 41 can be respectively and stably supported in the tank body 1, and the relative positions between the air diffusion pipes 41 and the tank body 1 are further stable.

The side wall of the tank body 1 is penetrated with a sodium cyanide input pipe 8 for inputting sodium cyanide to the sodium cyanide nozzle 7, one end of the sodium cyanide input pipe 8 is fixedly connected with the central position of the sodium cyanide disc 5, the other end of the sodium cyanide input pipe 8 is positioned outside the tank body 1, and the sodium cyanide input pipe 8 is communicated with the sodium cyanide disc 5.

When carrying out the cyanidation to the mineral, operating personnel lets in sodium cyanide input tube 8, and sodium cyanide moves into sodium cyanide dish 5 along sodium cyanide input tube 8, and then exports into cell body 1 from sodium cyanide nozzle 7 in, realizes the stable of sodium cyanide and continuously inputs the process, and sodium cyanide carries down, can better with the ore pulp and the air mixing reaction that are located sodium cyanide dish 5 below.

The sodium cyanide tray 5 comprises a plurality of sodium cyanide diffusion pipes 51, sodium cyanide nozzles 7 are positioned on the lower end face of the sodium cyanide diffusion pipes 51, each sodium cyanide diffusion pipe 51 is provided with a plurality of sodium cyanide nozzles 7, and the sodium cyanide nozzles 7 are sequentially distributed along the length direction of the sodium cyanide diffusion pipe 51. In the embodiment of the present application, the number of the sodium cyanide diffusion pipes 51 is eight, the shapes of the sodium cyanide diffusion pipes 51 are all the same, and the spacing between the adjacent sodium cyanide nozzles 7 is specifically set to 20-30 cm.

Each sodium cyanide diffusion tube 51 is arranged along the radial line direction of the tank body 1, and the included angles between adjacent sodium cyanide diffusion tubes 51 are the same. The plurality of sodium cyanide diffusion tubes 51 increase the input range of sodium cyanide, thereby increasing the contact area of the pulp, air and free cyanide, enabling the pulp, air and free cyanide to be fully contacted and mixed, and facilitating the mutual reaction of the air, cyanide and pulp.

The sodium cyanide diffusion pipes 51 are connected with the inner wall of the tank body 1 through the second support cross beams 20, the end part of each sodium cyanide diffusion pipe 51 far away from the sodium cyanide input pipe 8 is fixedly provided with the second support cross beams 20, and one end of each second support cross beam 20 far away from the sodium cyanide diffusion pipe 51 is fixedly connected with the inner wall of the tank body 1. The plurality of second supporting beams 20 are matched with each other, so that each sodium cyanide diffusion tube 51 can be stably supported in the tank body 1, and the relative positions between the sodium cyanide diffusion tubes 51 and the tank body 1 are further stabilized.

Referring to fig. 1, a high-pressure air pipe 10 for inputting air into the tank 1 is arranged in the tank 1, a plurality of air outlets 12 are formed in the side wall of the high-pressure air pipe 10, the high-pressure air pipe 10 is arranged in the vertical direction, the high-pressure air pipe 10 is located above the sodium cyanide disc 5, in the embodiment of the application, four high-pressure air pipes 10 are arranged, and the intervals between the adjacent high-pressure air pipes 10 are the same. One end of the high-pressure air pipe 10 is communicated with a high-pressure air supply pipe for supplying air into the high-pressure air pipe 10.

When the mineral is cyanidated, the high-pressure air pipe continuously introduces high-pressure air into the high-pressure air pipe 10, so that the high-pressure air pipe 10 can continuously introduce air into the middle upper part of the tank body 1 through the air outlet 12, and further the ore pulp, the air and the free cyanide are mixed for reaction.

The outside of the high-pressure air pipe 10 is coaxially sleeved with a sodium cyanide pipe 11 for inputting sodium cyanide into the tank body 1, and a plurality of liquid outlets 13 are formed in the outer wall of the sodium cyanide pipe 11. One end of the sodium cyanide tube 11 is communicated with a sodium cyanide liquid feeding tube for feeding sodium cyanide into the sodium cyanide tube 11. Because the sodium cyanide tube 11 is sealed up and down, when sodium cyanide enters the sodium cyanide tube 11 through the sodium cyanide liquid feeding tube, the sodium cyanide can be sprayed into the tank body 1 through the liquid outlet 13 under the driving action of air, so that the mixing rate of ore pulp, air and free cyanide is further improved.

The mixing mechanism further comprises a stirring motor 16, a speed reducer 17, a stirring shaft 14 and a stirring wing 15, one end of the stirring shaft 14 is fixedly connected with the stirring wing 15, the end part of the stirring shaft 14, which is far away from the stirring wing 15, is rotationally connected with the tank body 1, the stirring motor 16 is positioned at the top end of the tank body 1 and is fixedly connected with the tank body 1, and the stirring motor 16 is connected with the end part of the stirring shaft 14, which is far away from the stirring wing 15, through the speed reducer 17. In the present example, the stirring fin 15 is located 20-30 cm above the sodium cyanide tray 5.

When the mineral is subjected to cyanidation treatment, the stirring motor 16 works, so that the speed reducer 17 drives the stirring shaft 14 to rotate, the stirring wing 15 is driven by the stirring shaft 14 to rotate, and the stirring wing 15 rotates to continuously stir the ore pulp at the bottom of the tank body 1, so that the ore pulp is not easy to deposit at the bottom of the tank body 1.

The inner wall of the tank body 1 is fixedly provided with a plurality of current stabilizing plates 18 which are arranged along the vertical direction, in the embodiment of the application, the number of the current stabilizing plates 18 is six, and the distances between the adjacent current stabilizing plates 18 are the same. When the mineral is subjected to cyanide treatment, the flow stabilizer 18 is arranged on the inner wall of the tank body 1, so that the rotating speed of the ore pulp in the stirring process can be stabilized, and meanwhile, the ore pulp can be dispersed, so that the ore pulp, air and free cyanide can be better mixed.

The implementation principle of the leaching tank in the embodiment of the application is as follows: when carrying out the cyanidation to mineral, operating personnel will ore pulp from advancing ore deposit pipe 2 input cell body 1, and at this moment, air nozzle 6 upwards inputs air, and sodium cyanide nozzle 7 downwards inputs sodium cyanide, and the ore pulp of input is located between air input port and the sodium cyanide input port, can make ore pulp, air and free cyanide fully contact and mix, and air, cyanide and ore pulp interact of being convenient for, and then reaches the effect that improves the leaching rate.

The foregoing description of the preferred embodiments of the present application is not intended to limit the utility model to the particular embodiments of the present application, but to limit the scope of the utility model to the particular embodiments of the present application.

Claims

1. A leaching tank, comprising: the ore feeding device comprises a tank body (1), wherein the lower end part of the tank body (1) is communicated with an ore feeding pipe (2), and the upper end part of the tank body (1) is communicated with an ore discharging pipe (3); the mixing mechanism is arranged in the tank body (1) and comprises an air disc (4) and a sodium cyanide disc (5), the air disc (4) is positioned below the sodium cyanide disc (5), and an outlet of the ore feeding pipe (2) is positioned between the air disc (4) and the sodium cyanide disc (5); the air disk (4) upwards opens a plurality of air nozzles (6) that are used for importing air to cell body (1), sodium cyanide disk (5) downwards opens a plurality of sodium cyanide nozzles (7) that are used for importing sodium cyanide to cell body (1).

2. A leaching tank according to claim 1, wherein: the side wall of the tank body (1) is provided with a sodium cyanide input pipe (8) for inputting sodium cyanide to the sodium cyanide nozzle (7), and the side wall of the tank body (1) is provided with an air input pipe (9) for inputting air to the air nozzle (6).

3. A leaching tank according to claim 1, wherein: the sodium cyanide tray (5) comprises a plurality of sodium cyanide diffusion pipes (51), wherein sodium cyanide nozzles (7) are positioned on the lower end face of each sodium cyanide diffusion pipe (51), and the sodium cyanide nozzles (7) on each sodium cyanide diffusion pipe (51) are sequentially distributed along the length direction of each sodium cyanide diffusion pipe (51); the air disk (4) comprises a plurality of air diffusion pipes (41), the air nozzles (6) are positioned on the upper end faces of the air diffusion pipes (41), and the air nozzles (6) on each air diffusion pipe (41) are sequentially distributed along the length direction of each air diffusion pipe (41).

4. A leaching tank according to claim 3, wherein: the sodium cyanide diffusion tube (51) and the air diffusion tube (41) are arranged along the radial line direction of the tank body (1).

5. A leaching tank according to claim 3, wherein: the included angle between the adjacent sodium cyanide diffusion pipes (51) is the same, and the included angle between the adjacent air diffusion pipes (41) is the same.

6. A leaching tank according to claim 1, wherein: the high-pressure air pipe (10) for inputting air into the tank body (1) is arranged in the tank body (1), and a sodium cyanide pipe (11) for inputting sodium cyanide into the tank body (1) is sleeved outside the high-pressure air pipe (10).

7. A leaching tank according to claim 1, wherein: the mixing mechanism comprises a stirring shaft (14) and stirring fins (15), one end of the stirring shaft (14) is fixedly connected with the stirring fins (15), and the end part, far away from the stirring fins (15), of the stirring shaft (14) is rotationally connected with the tank body (1).

8. A leaching tank according to claim 1, wherein: the inner wall of the tank body (1) is fixedly provided with a plurality of current stabilizing plates (18) which are arranged along the vertical direction.