CN108754136A - Low-grade gold ore heap leaching site and bottom liquid collection piping system - Google Patents

Abstract

The low-grade gold ore heap leaching field and the liquid collection pipeline system at the bottom, including the heap leaching field, the solution collection main pipe, the solution collection branch pipe and the solution collection branch pipe. , the heap leaching field also includes a solution collection ditch arranged at the bottom thereof, the main pipe is arranged in the solution collection ditch at the bottom of the middle channel of the heap leaching field, the solution collection branch pipe is connected to the solution collection main pipe, and the solution collection branch pipe Connected to the solution collection branch pipe, the solution collection branch pipe and the solution collection branch pipe are all arranged in the solution collection ditch provided at the bottom of the heap leaching field, and the pipe walls of the solution collection main pipe, the solution collection branch pipe and the solution collection branch pipe are all provided with Several openings. The invention has the beneficial effects: the solution collection branch pipes are all over the bottom of the heap leaching area, and the heap leaching efficiency is improved. Equipped with emergency collection pipes and solution buffer pools, it can effectively deal with emergencies such as rainfall and local blockage.

Description

Low-grade gold ore heap leaching site and bottom liquid collection piping system

technical field

The invention relates to the field of metal infiltration processing, in particular to a low-grade gold ore heap leaching field and a liquid collection pipeline system at the bottom.

Background technique

With the wide application of non-ferrous hydrometallurgy technology, more and more non-ferrous mines need to extract copper, gold and other non-ferrous metals by means of heap leaching. The terrain of the heap leaching site is ever-changing, and such situations are often encountered: the terrain is flat , or in other words, there is a slope in the longitudinal direction (the total outflow direction of the solution), while the slope in the transverse direction is very small. However, when non-ferrous mines use the heap leaching process to extract copper, gold and other metals, there is a requirement for the slope of the heap leaching site. For the total outflow direction of the solution, that is, the longitudinal slope of the site is not less than 1%. At the same time, the heap body should be considered to avoid sliding. Safety requirements, the vertical slope is not greater than 3%; and in the horizontal direction, considering the requirement that the solution can quickly flow to the vertical collection pipe, it is also required that the horizontal direction has a slope of not less than 0.5%.

For the case of flat terrain, in the previous design, the general way is to make a large area of slope to meet the slope requirements of the process, resulting in a large height difference between filling and excavation, resulting in a large amount of earthwork, and at the same time, the high filling is easy to settle. ; or in order to overcome this situation, the slope of the site is not adjusted, so the situation caused is that the solution flows out slowly, and the consequence is that the bottom layer of the pile is hardened, and the solution sprayed from the upper part flows out from the side slope in the middle , the purpose of full infiltration cannot be achieved, the metal in the ore cannot be fully leached, and the content of metal ions in the solution is low, which cannot meet the next process requirements.

Contents of the invention

The object of the present invention is to propose a low-grade gold ore heap leaching field and a liquid collection pipeline system at the bottom, so as to improve leaching efficiency and solution collection efficiency.

In order to achieve the above purpose, the following technical solutions are adopted: the low-grade gold ore heap leaching site and the liquid collection pipeline system at the bottom include a heap leaching site, a solution collection main pipe, a solution collection branch pipe and a solution collection branch pipe, and the heap leaching site includes an intermediate channel and the heap leaching area located on both sides of the middle passage, the heap leaching field also includes a solution collection ditch set at the bottom, the main pipe is arranged in the solution collection ditch at the bottom of the middle passage of the heap leaching field, and the solution collection branch pipe is connected to On the solution collection main pipe, the solution collection branch pipe is connected to the solution collection branch pipe, and the solution collection branch pipe and the solution collection branch pipe are all arranged in the solution collection ditch provided at the bottom of the heap leaching site, the solution collection main pipe, the solution collection branch pipe and A plurality of openings are arranged on the pipe walls of the solution collecting branch pipes.

As a further solution of the present invention, the heap leaching field is V-shaped and slopes toward the middle channel, and the slope from the highest point to the lowest point is 0.5%.

As a further solution of the present invention, the overall longitudinal direction of the heap leaching field is a slope with a slope of 2%.

As a further solution of the present invention, the ground at the bottom of the heap leaching area is arranged in zigzag strips.

As a further solution of the present invention, the solution collection branch pipe and the solution collection main pipe are arranged in a herringbone shape.

As a further solution of the present invention, the branched solution collection pipes are distributed in a dendritic shape on both sides of the branched solution collection pipes.

As a further solution of the present invention, a solution buffer pool is provided at the lower end of the middle aisle, and several F-type emergency collection pipes connected to the solution collection main pipe are arranged in the solution buffer pool.

As a further solution of the present invention, the openings of the solution collection main pipe, the solution collection branch pipe and the solution collection branch pipe are evenly arranged around the pipe wall.

As a further solution of the present invention, the solution collection main pipe, the solution collection branch pipe, the solution collection branch pipe and the emergency collection pipe all adopt double-wall corrugated pipes.

The invention has beneficial effects: the solution collection branch pipes are all over the bottom of the heap leaching area, and the heap leaching efficiency is improved. It is equipped with emergency collection pipes and solution buffer pools to effectively deal with emergencies such as rainfall and local blockage.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the horizontal structure of the heap leaching field of the present invention.

Fig. 3 is a partial structural schematic diagram of the present invention.

Fig. 4 is a structural schematic diagram of the emergency collection pipe of the present invention.

In the figure: 1-heap leaching field, 11-middle channel, 12-heap leaching area, 13-solution collection ditch, 2-solution collection main pipe, 3-solution collection branch pipe, 4-solution collection branch pipe, 5-solution buffer pool, 6-Emergency collection tube.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, not all of them.

Referring to Fig. 1-4, the low-grade gold ore heap leaching site and the bottom liquid collection pipeline system include a heap leaching site 1, a solution collection main pipe 2, a solution collection branch pipe 3 and a solution collection sub-pipe 4, and the heap leaching site 1 includes a middle channel 11 and the heap leaching area 12 located on both sides of the middle channel 11, the heap leaching site 1 also includes a solution collecting ditch 13 arranged at the bottom thereof, and the main pipe is arranged at the solution collecting ditch 13 at the bottom of the channel 11 in the middle of the heap leaching site Inside, the solution collection branch pipe 3 is connected to the solution collection main pipe, and the solution collection branch pipe 4 is connected to the solution collection branch pipe 3, and the solution collection branch pipe 3 and the solution collection branch pipe 4 are all arranged at the bottom of the heap leaching site 1. In the solution collection ditch 13, the pipe walls of the solution collection main pipe 2, the solution collection branch pipe 3 and the solution collection branch pipe 4 are all provided with a number of openings.

The heap leaching field 1 is V-shaped and slopes toward the middle channel 11 with a slope of 0.5% from the highest point to the lowest point. Its role or beneficial effect: doing so ensures solution collection efficiency.

The overall longitudinal direction of the heap leaching field 1 is a slope with a slope of 2%. Its role or beneficial effect: doing so ensures solution collection efficiency.

The ground at the bottom of the heap leaching zone 12 is arranged in a zigzag strip. Its role or beneficial effect: doing so is beneficial to site adjustment, reduces the amount of earthwork for construction, and reduces costs.

The solution collection branch pipe 3 and the solution collection main pipe 2 are arranged in a herringbone shape. Its function or beneficial effect: doing so can make the solution collection branch pipe 3 have a larger slope, which is beneficial to the solution collection and flow into the solution collection main pipe 2 .

The solution collecting branch pipe 4 is distributed on both sides of the solution collecting branch pipe 3 in a dendritic shape. Its role or beneficial effect: the collection branch pipes 4 are all over the bottom of the heap leaching area 12, improving the solution collection efficiency, and at the same time, it can cope with the impact of rainfall, and prevent the economic loss caused by the leakage of the solution and pollute the environment caused by the rainfall.

A solution buffer pool 5 is provided at the lower end of the middle aisle 12, and a plurality of emergency collection pipes 6 connected to the solution collection main pipe 2 are arranged in the solution buffer pool 5, and the emergency collection pipes 6 are F-shaped. Its function or beneficial effect: the solution can flow into the solution buffer pool from the solution collection ditch 13 after the flow is too large and partially blocked during rainfall, so as to avoid the solution from leaking out.

The openings of the solution collecting main pipe 2, the solution collecting branch pipe 3 and the solution collecting branch pipe 4 are evenly arranged around the pipe wall. Its role or beneficial effect: it is beneficial to solution collection.

The solution collection main pipe 2, the solution collection branch pipe 3, the solution collection branch pipe 4 and the emergency collection pipe 6 all adopt double-wall corrugated pipes. Its role or beneficial effect: the use of this type of pipeline increases the contact area between the solution and the collection pipe per unit area, which is beneficial to solution collection.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (8)

1. The low-grade gold ore heap leaching site and the liquid collection pipeline system at the bottom, including the heap leaching site (1), the solution collection supervisor (2), the solution collection branch pipe (3) and the solution collection branch pipe (4), are characterized in that: The heap leaching field (1) includes a middle channel (11) and a heap leaching area (12) positioned at both sides of the middle channel (11), and the heap leaching field (1) also includes a solution collection ditch (13) provided at the bottom thereof ), the main pipe is arranged in the solution collection ditch (13) at the bottom of the channel (11) in the middle of the heap leaching site, the solution collection branch pipe (3) is connected to the solution collection main pipe, and the solution collection branch pipe (4) is connected to On the solution collection branch pipe (3), the solution collection branch pipe (3) and the solution collection branch pipe (4) are all arranged in the solution collection ditch (13) provided at the bottom of the heap leaching field (1), and the solution collection main pipe ( 2), the pipe walls of the solution collection branch pipe (3) and the solution collection branch pipe (4) are provided with a number of openings. 2. The low-grade gold ore heap leaching field according to claim 1 and the liquid collecting pipeline system at the bottom are characterized in that: the heap leaching field (1) is V-shaped and slopes towards the middle channel (11) and the highest point reaches The resulting slope at the lowest point is 0.5%. 3. The low-grade gold ore heap leaching field and the liquid collection pipeline system at the bottom according to claim 1, characterized in that: the ground at the bottom of the heap leaching area (12) is arranged in a zigzag strip. 4. The low-grade gold ore heap leaching site and bottom liquid collection pipeline system according to claim 1, characterized in that: the solution collection branch pipe (3) and the solution collection main pipe (2) are arranged in a herringbone shape. 5. The low-grade gold ore heap leaching site and bottom liquid collection pipeline system according to claim 1, characterized in that: the solution collection branch pipes (4) are distributed on both sides of the solution collection branch pipes (3) in a dendritic shape. 6. the low-grade gold ore heap leaching field according to claim 1 and the liquid collecting pipeline system at the bottom, it is characterized in that: the lower end of the middle aisle (12) is provided with a solution buffer pool (5), and the solution Several emergency collection pipes (6) connected to the solution collection main pipe (2) are arranged in the buffer pool (5), and the emergency collection pipes (6) are F-shaped. 7. The low-grade gold ore heap leaching field and the bottom liquid collection pipeline system according to claim 1, characterized in that: the solution collection main pipe (2), the solution collection branch pipe (3) and the solution collection branch pipe (4) The openings are evenly arranged around the pipe wall. 8. according to claim 1 and 6 described low-grade gold ore heap leaching field and the liquid collection piping system at the bottom, it is characterized in that: described solution collection main pipe (2), solution collection branch pipe (3), solution collection branch pipe ( 4) and the emergency collection pipe (6) are double-wall corrugated pipes.