Gold ore continuous separation process

Abstract

The invention provides a gold ore continuous separation process, and relates to the technical field of ore separation, the gold ore continuous separation process comprises the following steps: S1, gold ore containing gangue is prepared into gold ore pulp, and the prepared gold ore pulp is discharged into a separation roller through a discharging pipeline and is close to the closed side; s2, the separation solution is fed into the separation roller through a liquid guide pipeline and close to the closed side, and the separation solution and the gold ore pulp directionally flow from the closed side in the separation roller to the open side in the separation roller; s3, controlling the separation roller to rotate directionally or swing back and forth while controlling continuous introduction of the gold ore pulp and the separation solution; and S4, the bottom of the turbulent flow device is controlled to spray out the sorting solution, turbulent flow on the bottom of the sorting area is achieved, gangue floating is accelerated, and the gangue is directionally discharged from the open side of the sorting roller along with the sorting solution. The gold ore continuous sorting efficiency and effect are greatly improved, and the gold ore sorting cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ore sorting, in particular to a continuous gold ore sorting process. BACKGROUND

[0002] The directly mined gold ore contains a large amount of impurities, among which gangue is common and in large quantity. The gangue and gold ore need to be sorted through a sorting process to improve the purity of the gold ore in the ore pulp.

[0003] The conventional sorting step is to sort the gangue and gold ore into an extremely fine ore pulp, and to selectively float the ore by adding reagents to form a separation. The traditional operation mode not only needs to grind a large amount of ore for a long time, increasing the grinding time and energy consumption, but also needs to add additional reagents for flotation operation, increasing the cost of gold ore sorting and reducing the efficiency of continuous gold ore sorting. SUMMARY

[0004] In view of the above problems, the present application provides a continuous gold ore sorting process, which can use a directional flow of sorting solution to carry out the gangue, greatly improving the efficiency and effect of continuous gold ore sorting, and reducing the cost of gold ore sorting.

[0005] To solve the above problems, the technical scheme adopted by the present application is:

[0006] The continuous gold ore sorting process uses an automatic gold ore sorting device, which comprises a bearing frame, the bearing frame is internally provided with a sorting drum, a plurality of partition rings are internally and intermittently arranged in the sorting drum, a sorting area is formed between adjacent two partition rings, the sorting drum has a closed side and an open side, a liquid guide pipe and a discharging pipe are arranged at the axial position of the closed side of the sorting drum, the discharging pipe is sleeved outside the liquid guide pipe, a plurality of flow disturbing devices are arranged on the surface of the liquid guide pipe, and the flow disturbing devices are opposite to the corresponding sorting areas; the process comprises the following steps: S1, configuring gold ore containing gangue into gold ore pulp, and discharging the configured gold ore pulp into the sorting drum near the closed side through the discharging pipe; S2, discharging the sorting solution into the sorting drum near the closed side through the liquid guide pipe, and the sorting solution and the gold ore pulp flow directionally from the closed side of the sorting drum to the open side of the sorting drum; S3, controlling the continuous introduction of the gold ore pulp and the sorting solution while controlling the directional rotation or reciprocating swing of the sorting drum; and S4, controlling the flow disturbing devices to spray sorting solution from the bottom, realizing the flow disturbance of the bottom of the sorting area, accelerating the floating of the gangue, and discharging the gangue with the sorting solution from the open side of the sorting drum.

[0007] Preferably, the density of the sorting solution is in the range of 1.2-1.45 g / cm³, and the gold ore is prepared into a gold slurry using the sorting solution.

[0008] Preferably, the discharge pipe includes an inner sleeve and an outer sleeve, which are connected by a connecting assembly, and the inner sleeve is sleeved on the outside of the liquid guiding pipe.

[0009] Preferably, the surface of the liquid guiding pipe has a first drainage opening, which is located on the outside of the connecting component.

[0010] Preferably, the turbulence device includes a deflection ring sleeved on the outside of the liquid guiding pipe, a connecting pipe fixed at the bottom of the deflection ring, a fan-shaped turbulence component fixed at the bottom of the connecting pipe, and a first nozzle and a second nozzle disposed inside the fan-shaped turbulence component, through which the sorting solution is sprayed out.

[0011] Preferably, the tops of the first nozzle and the second nozzle are both located on the inner side, and the bottoms of the first nozzle and the second nozzle spread outwards.

[0012] Preferably, the deflection ring has an internal interlayer chamber, the interlayer chamber has a flow-guiding opening on the side near the liquid guiding pipe, and the surface of the liquid guiding pipe has a second drainage opening that matches the flow-guiding opening.

[0013] Preferably, a torsional elastic component is provided between the deflection ring and the liquid guiding pipe, and under normal conditions, the flow guiding opening partially overlaps with the second liquid drainage opening, and the second liquid drainage opening is located on the deflection path of the flow guiding opening.

[0014] Preferably, the torsion elastic component includes a positioning ring fixedly connected to the liquid guiding pipe, and the positioning ring and the deflection ring are connected by a torsion elastic element.

[0015] Preferably, the positioning ring and the liquid guiding pipe are connected by a locking workpiece, and the position of the positioning ring is adjusted and locked according to the content and density of gangue in the gold ore.

[0016] The beneficial effects of this invention are as follows:

[0017] Compared with existing technologies, this invention utilizes the density difference between gold ore and gangue to separate them. While controlling the directional rotation or oscillation of the sorting drum, a turbulence device sprays sorting solution towards the bottom of the sorting area to accelerate the floating and discharge of gangue. The entire process does not require excessive grinding of the gold ore, shortening the preparation time and reducing energy consumption. Furthermore, no additional reagents are needed for subsequent flotation. The gangue can be carried out by the directional flow of the sorting solution, which greatly improves the efficiency and effect of continuous gold ore sorting and reduces the cost of gold ore sorting. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the automatic gold ore sorting device of the present invention.

[0019] Figure 2 For the present invention Figure 1 A top-view structural diagram.

[0020] Figure 3 For the present invention Figure 1 A schematic diagram of the main structure.

[0021] Figure 4 For the present invention Figure 3 A schematic diagram of the AA-direction cross-section structure.

[0022] Figure 5 For the present invention Figure 4 A magnified structural diagram at point B.

[0023] Figure 6 This is a three-dimensional structural diagram of the turbulence-disrupting device of the present invention.

[0024] Figure 7 For the present invention Figure 6 A schematic diagram of the main structure.

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the CC-direction cross-section structure.

[0026] In the diagram: 100, bearing frame; 110, support frame; 200, sorting roller; 210, separating ring; 2101, sorting area; 300, liquid guiding pipe; 310, first drain opening; 320, second drain opening; 400, turbulence device; 410, deflection ring; 411, interlayer chamber; 412, flow guiding opening; 420, torsional elastic element; 430, positioning ring; 440, connecting pipe; 441, internal chamber; 450, fan-shaped turbulence assembly; 451, first nozzle; 452, second nozzle; 500, discharge pipe; 510, inner sleeve; 520, connecting assembly; 530, outer sleeve. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See attached document Figure 1 -Appendix Figure 8 The continuous gold ore sorting process is used to separate high-density gold ore from low-density gangue. An automatic gold ore sorting device is used. Before sorting, the gold ore containing gangue is ground into a preset particle size and prepared into a gold slurry. The gold slurry is then fed into the automatic gold ore sorting device for sorting.

[0029] Specifically, the automatic gold ore sorting device includes a support frame 100, on which a support frame 110 is fixed. A sorting drum 200 is rotatably connected inside the support frame 100. Multiple separating rings 210 are fixed at intervals inside the sorting drum 200. A sorting area 2101 is formed between two adjacent separating rings 210 to accommodate the gold ore slurry. A feeding pipe 500 is provided on the first side of the sorting drum 200. The gold ore slurry is fed into the sorting drum 200 for sorting through the feeding pipe 500. The feeding pipe 500 is rotatably and sealed to the axis of the sorting drum 200, ensuring normal feeding of the ore slurry while allowing the sorting drum 200 to rotate in a specific direction or swing back and forth.

[0030] A liquid guiding pipe 300 is also provided at the axis of the sorting drum 200. The sorting solution can be introduced into the sorting drum 200 through the liquid guiding pipe 300, and the direction of the sorting solution can be controlled. The flowing sorting solution can carry gangue out of the sorting drum 200, while the denser gold ore cannot cross the separating ring 210 and remains in the sorting area 2101, thus achieving the separation of gold ore and gangue.

[0031] The preferred separation solutions are calcium chloride or magnesium chloride solutions, as these solutions have a higher density and will not affect gold separation. The density of the prepared solution should be controlled within the range of 1.2-1.45 g / cm³, which can increase the buoyancy of the gangue and accelerate its flotation efficiency in the separation solution, achieving efficient separation, while avoiding excessive concentration that could affect the normal settling of ore particles. In addition, the same high-density solution should be used in the preparation of the gold slurry to ensure the consistency and stability of the separation.

[0032] The aforementioned liquid guiding pipe 300 also passes through the axis of the sorting drum 200. Its first side is connected and fixed to the support frame 100 through the support frame 110, and its second side passes through the feeding pipe 500 and extends to the outside. The feeding pipe 500 here is a sandwich design, including an outer sleeve 530 located on the outermost side and an inner sleeve 510 located on the inner side. The inner sleeve 510 and the outer sleeve 530 are fixedly connected by multiple spaced connecting components 520. This structure can ensure that the gold slurry can pass through normally, and can also achieve relative isolation and sealing by the inner sleeve 510 being fitted on the outside of the liquid guiding pipe 300, thus ensuring the normal flow of the gold slurry.

[0033] The sorting drum 200 here is open on one side and closed on the other: the side closer to the feed pipe 500 is closed, and the side farther away from the feed pipe 500 is open. The open side allows the sorting solution and gangue to flow out. During the sorting process, the gold ore slurry must first be fed into the closed side of the sorting drum 200 through the feed pipe 500, and then the sorting solution is fed into the corresponding position through the liquid guiding pipe 300. The sorting solution is controlled to flow in a specific direction within the sorting drum 200. During the flow, gangue with lower density will float to the surface and be discharged with the sorting solution.

[0034] A first drain opening 310 is provided on the surface of the liquid guiding pipe 300. The sorting solution can be discharged to the corresponding position inside the sorting drum 200 through the first drain opening 310. At the same time, the first drain opening 310 is located on the side close to the feeding pipe 500. When the gold ore slurry is fed, the sorting solution can be controlled to spray out from the first drain opening 310, forming turbulence on the gold ore slurry and further improving the sorting effect of the gold ore slurry.

[0035] To further improve the sorting effect of gold ore slurry in each sorting zone 2101 within the sorting drum 200, multiple turbulence devices 400 are also installed inside the sorting drum 200. These multiple turbulence devices 400 are opposite to the corresponding sorting zones 2101, which can both disturb the ore at the bottom of the sorting zone 2101, accelerate the floating of gangue to improve sorting efficiency, and reduce the flow rate of the sorting solution to reduce resource loss.

[0036] Specifically, the turbulence device 400 includes a deflection ring 410 sleeved on the outside of the liquid guiding pipe 300. A connecting pipe 440 is fixed to the bottom of the deflection ring 410, and a fan-shaped turbulence component 450 is fixed to the bottom of the connecting pipe 440. The fan-shaped turbulence component 450 has a fan-shaped structure and is set in the sorting area 2101. It can disturb the ore. Especially when the sorting drum 200 rotates in a direction, the fan-shaped turbulence component 450 is located on the path of ore tumbling, which can form local turbulence, improve the sorting effect of ore in the slurry, and accelerate the separation of gangue and gold ore.

[0037] The aforementioned deflection ring 410 and the liquid guiding pipe 300 are preferentially connected through a torsion elastic component. When there is a large amount of gold ore in the sorting area 2101, the fan-shaped turbulence component 450 can deflect synchronously with the ore and automatically reset under the action of the torsion elastic component.

[0038] The aforementioned torsional elastic component includes a positioning ring 430 fixedly connected to the outer wall of the liquid guiding pipe 300, and a torsional elastic element 420 disposed between the positioning ring 430 and the deflection ring 410. With the positioning ring 430 as a reference, the torsional elastic element 420 can drive the deflection ring 410, which has been deflected to the outer position, to return to its original position. In a static state, the deflection ring 410 and the connecting pipe 440 and the fan-shaped turbulence assembly 450 below it will be in a predetermined position and facing the bottom of the sorting area 2101.

[0039] To further enhance the turbulence effect on the ore in the sorting area 2101, a first nozzle 451 and a second nozzle 452 are provided at the bottom of the fan-shaped turbulence assembly 450. The tops of the first nozzle 451 and the second nozzle 452 are located in the middle position, and the bottoms radiate outwards. They can spray liquid to create turbulence on the slurry in the sorting area 2101, further accelerating the floating of gangue.

[0040] The aforementioned connecting pipe 440 has an internal chamber 441 inside. The deflection ring 410 is hollow and has an internal interlayer chamber 411 that communicates with the internal chamber 441. A flow guide opening 412 is provided on the side wall of the interlayer chamber 411, and the flow guide opening 412 communicates with the inside of the liquid guiding pipe 300. The sorting solution in the liquid guiding pipe 300 can pass through the flow guide opening 412, the interlayer chamber 411, and the internal chamber 441 in sequence, and finally be discharged from the first nozzle 451 and the second nozzle 452, thereby realizing multi-position turbulence of the sorting solution and improving the gangue sorting effect.

[0041] In order to adaptively adjust the amount of sorting solution sprayed from the first nozzle 451 and the second nozzle 452 according to the size of the solid particles in the slurry in the sorting area 2101, and to achieve targeted sorting turbulence control, a second drain opening 320 is opened at the bottom of the liquid guiding pipe 300. The aforementioned guiding opening 412 is located on the side wall of the interlayer chamber 411. When the connecting pipe 440 is in a vertical state, the second drain opening 320 and the guiding opening 412 only overlap slightly, allowing only a small portion of the sorting solution to pass through and be sprayed out from the first nozzle 451 and the second nozzle 452.

[0042] When the amount of solid impurities in the slurry increases in the sorting zone 2101, during the process of the slurry and ore being directionally deflected by the sorting drum 200, the excess ore will impact the fan-shaped turbulence component 450, causing the fan-shaped turbulence component 450 to deflect. As the deflection angle of the fan-shaped turbulence component 450 increases, the overlapping area of ​​the guide opening 412 and the second drain opening 320 will increase simultaneously, and the passage area of ​​the sorting solution will also increase. At this time, the flow velocity of the sorting solution sprayed from the interlayer chamber 411 and the first nozzle 451 and the second nozzle 452 will increase, forming a stronger turbulence in the sorting zone 2101, further improving the sorting effect of gangue.

[0043] Through the above structural design, the turbulence effect of the turbulence device 400 can be automatically adjusted according to the distribution of the gangue in multiple sorting areas 2101. Moreover, there is no need to design too many sensing elements. Automatic adjustment can be achieved by simply using the impact of the gangue. The structure is simple and the effect is significant, which greatly improves the sorting effect and efficiency of gangue.

[0044] The aforementioned flow guide opening 412 and the second drainage opening 320 both have strip-shaped horizontal projection surfaces, which can form different overlapping areas depending on the deflection angle of the deflection ring 410. In addition, the fixed position of the positioning ring 430 can be deflected and adjusted. By changing the overlapping area of ​​the flow guide opening 412 and the second drainage opening 320 in the initial state, the initial turbulence effect of the fan-shaped turbulence component 450 can be adjusted to meet the sorting requirements of different types of ores.

[0045] The gold ore is continuously sorted according to the following steps:

[0046] Step 1: The gold ore slurry is fed into the sorting drum 200 through the feed pipe 500, and the sorting solution is fed into the sorting drum 200 through the liquid guide pipe 300. Both the gold ore slurry and the sorting solution enter from the closed side of the sorting drum 200, and excess sorting solution flows from the closed side of the sorting drum 200 to the open side.

[0047] Step 2: During the flow of the sorting solution, the sorting drum 200 is controlled to rotate continuously or oscillate back and forth; during this process, the gangue with lower density will float to the surface and eventually flow out from the open side of the sorting drum 200 with the sorting solution.

[0048] Step 3: While the sorting drum 200 continues to rotate or oscillates back and forth, control the bottom of the turbulence device 400 to spray out a portion of the sorting solution; the sprayed sorting solution flows toward the bottom of the sorting drum 200, lifting up the gangue deposited at the bottom and accelerating the upward separation of the gangue.

[0049] Step 4: After continuous sorting for a predetermined time, control the sorting drum 200 to stop rotating or reciprocate, and use a negative pressure device to collect the sorted gold ore slurry remaining in multiple sorting areas 2101 within the sorting drum 200.

[0050] By repeating the above steps, continuous, efficient, and precise sorting of gold ore can be achieved.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous gold ore separation process using an automatic gold ore separation device, characterized in that: The gold ore automatic sorting device comprises a bearing frame (100), a sorting drum (200) is arranged in the bearing frame (100), a plurality of partition rings (210) are arranged at intervals in the sorting drum (200), a sorting area (2101) is formed between two adjacent partition rings (210), the sorting drum (200) has a closed side and an open side, a liquid guide pipe (300) and a discharging pipe (500) are arranged at the axis position of the closed side of the sorting drum (200), the discharging pipe (500) is arranged outside the liquid guide pipe (300), a plurality of flow disturbing devices (400) are arranged on the surface of the liquid guide pipe (300), and the flow disturbing devices (400) are opposite to the corresponding sorting areas (2101); the method comprises the following steps: S1, gold ore containing gangue is configured into gold slurry, and the configured gold slurry is discharged into the sorting drum (200) near the closed side through the discharging pipe (500); S2, the sorting solution is discharged into the sorting drum (200) near the closed side through the liquid guide pipe (300), and the sorting solution and the gold slurry flow directionally from the closed side of the sorting drum (200) to the open side of the sorting drum (200); S3, the sorting drum (200) is controlled to rotate directionally or reciprocate while the gold slurry and the sorting solution are continuously introduced; S4, the flow disturbing devices (400) are controlled to spray the sorting solution from the bottom, so that the flow of the bottom of the sorting area (2101) is disturbed, the gangue is accelerated to float, and the gangue is discharged directionally from the open side of the sorting drum (200) along with the sorting solution.

2. The continuous gold ore separation process according to claim 1, characterized in that, The density of the sorting solution ranges from 1.2 to 1.45 g / cm3, and the gold ore is configured into gold slurry by using the sorting solution.

3. The continuous gold ore separation process according to claim 1, characterized in that, The discharging pipe (500) comprises an inner sleeve (510) and an outer sleeve (530), the inner sleeve (510) and the outer sleeve (530) are connected through a connecting assembly (520), and the inner sleeve (510) is arranged outside the liquid guide pipe (300).

4. The continuous gold ore separation process according to claim 3, characterized in that, The surface of the liquid guide pipe (300) is provided with a first liquid discharge opening (310), and the first liquid discharge opening (310) is located outside the connecting assembly (520).

5. The continuous gold ore separation process according to claim 1, characterized in that, The flow disturbing device (400) comprises a deflection ring (410) arranged outside the liquid guide pipe (300), a communication pipe (440) is fixed to the bottom of the deflection ring (410), a fan-shaped flow disturbing assembly (450) is fixed to the bottom of the communication pipe (440), a first spray pipe (451) and a second spray pipe (452) are arranged in the fan-shaped flow disturbing assembly (450), and the sorting solution is sprayed through the first spray pipe (451) and the second spray pipe (452).

6. The continuous gold ore separation process according to claim 5, characterized in that, The top of the first spray pipe (451) and the second spray pipe (452) is located on the inner side, and the bottom of the first spray pipe (451) and the second spray pipe (452) spreads outward.

7. The continuous gold ore separation process according to claim 5, characterized in that, The deflection ring (410) is internally formed with a sandwich chamber (411), the sandwich chamber (411) is opened with a flow guide opening (412) near one side of the liquid guide pipe (300), and the surface of the liquid guide pipe (300) is opened with a second liquid discharge opening (320) matched with the flow guide opening (412).

8. The continuous gold ore separation process according to claim 7, characterized in that, A torsion elastic assembly is arranged between the deflection ring (410) and the liquid guide pipe (300), the flow guide opening (412) and the second liquid discharge opening (320) partially overlap in normal state, and the second liquid discharge opening (320) is located on the deflection path of the flow guide opening (412).

9. The continuous gold ore separation process according to claim 8, characterized in that, The torsion elastic assembly comprises a positioning ring (430) fixedly connected with the liquid guide pipe (300), and the positioning ring (430) and the deflection ring (410) are connected through a torsion elastic element (420).

10. The continuous gold ore separation process according to claim 9, characterized in that, The positioning ring (430) and the liquid guide pipe (300) are connected through locking workpieces, and the position of the positioning ring (430) is locked after being adjusted according to the content and density of the vein stone in the gold ore.

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