Antimony removal device for antimony-containing gold concentrate

Abstract

The utility model provides an antimony-containing gold concentrate antimony removal device which comprises a feeding tank, the lower portion of the feeding tank is respectively connected with a first-stage leaching tank and a second-stage leaching tank, the first-stage leaching tank is connected with the second-stage leaching tank, the first-stage leaching tank and the second-stage leaching tank are respectively connected with a first-stage intermediate tank through a hose pump, and the second-stage intermediate tank is connected with a second-stage intermediate tank through a hose pump. The first-stage intermediate tank is connected with the second-stage intermediate tank, the second-stage intermediate tank is connected with the filter press through the ore beating pump, the ore unloading pit is arranged below the filter press, and the side surface of the filter press is connected with the rich liquid tank; according to the utility model, by adopting the form of automatically controlling the washing and blowing filter press, the problems of low antimony recovery rate and high antimony content and water content of antimony electrodeposition leaching residues are effectively solved, and the antimony content of the leaching residues is reduced to 0.2% from the original 1.8%. The device is simple in structure, convenient to operate, high in applicability, stable in production, low in failure rate and convenient for industrial production and application.

Description

Technical Field

[0001] This utility model belongs to the field of smelting equipment technology, specifically relating to a device for removing antimony from antimony-containing gold concentrate. Background Technology

[0002] Currently, due to the difficulty of antimony removal in pyrometallurgical systems, pretreatment of antimony-containing gold concentrate is necessary to produce anode copper with lower impurity element content, thereby reducing the amount of antimony entering the pyrometallurgical system. The pretreatment process for antimony removal in the antimony electrowinning system involves first leaching in an alkaline solution, followed by pressure filtration of the slurry to separate the solid and liquid components. Antimony enters the filtrate (i.e., the rich electrowinning solution) in the form of ions, while the remaining gold, silver, copper, and other precious metals remain in the filter residue (i.e., the leaching residue). Subsequently, the ore is blended in the pyrometallurgical system. The patent with patent number "CN202099358U" and utility model name "Antimony Removal Device for Pretreatment of Arsenic-Stimony-Gold Concentrate" specifically discloses an antimony removal device for pretreatment of arsenic-stimony-gold concentrate to improve the recovery rate of precious metals. This device provides a method of treating leaching residue with a washing-type diaphragm filter press, which can wash away the rich liquor remaining in the leaching residue and significantly reduce the antimony content in the antimony electrowinning leaching residue. However, it cannot solve the problem of excessive residual moisture in the leaching residue. Excessive moisture content in the leaching residue will affect its storage and transportation on the one hand, and its participation in pyrometallurgical ore blending will lead to uneven blending, resulting in large fluctuations in the grade of the produced matte and affecting the stable operation of the pyrometallurgical system. Utility Model Content

[0003] To solve the above problems, this utility model provides an antimony removal device for antimony-containing gold concentrate.

[0004] The technical solution of this utility model is implemented as follows: An antimony removal device for antimony-containing gold concentrate includes a feeding tank, which is connected to a primary leaching tank and a secondary leaching tank at its lower part. The primary leaching tank is connected to the secondary leaching tank, and the primary leaching tank and the secondary leaching tank are respectively connected to a primary intermediate tank via a hose pump. The primary intermediate tank is connected to the secondary intermediate tank, and the secondary intermediate tank is connected to a filter press via a ore pump. A ore discharge pit is provided below the filter press, and the side of the filter press is connected to a rich liquor tank. The filter press is connected to a control cabinet.

[0005] Preferably, the rich liquid tank is equipped with a baffle.

[0006] The beneficial effects of this utility model are as follows: This utility model sets up a filter press and its control cabinet, and through the use of an automatically controlled water washing and blowing filter press, it achieves automatic control, effectively washing away the residual antimony-rich solution in the leaching residue, thereby reducing the antimony content in the leaching residue and improving the antimony recovery rate. It effectively solves the problems of low antimony recovery rate, high antimony content, and high water content in antimony electrowinning leaching residue. The antimony content in the leaching residue is reduced from the original 1.8% to 0.2%. Based on the ore input, an additional 800-900 tons of antimony can be recovered annually. This device has a simple structure, is easy to operate, has strong applicability, stable production, low failure rate, and is easy to apply in industrial production, improving the antimony recovery rate and reducing the antimony content and water content in the antimony electrowinning leaching residue. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model.

[0008] Parts Description: 1. Feeding tank, 2. Primary leaching tank, 3. Secondary leaching tank, 4. Hoses pump, 5. Primary intermediate tank, 6. Secondary intermediate tank, 7. Mining pump, 8. Filter press, 9. Rich liquor tank, 10. Unloading pit, 11. Baffle plate. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0010] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0011] See attached document Figure 1An antimony removal device for antimony-containing gold concentrate includes a feeding tank 1, which is connected to a primary leaching tank 2 and a secondary leaching tank 3. The primary leaching tank 2 is connected to the secondary leaching tank 3. During ore cleaning, either the primary leaching tank 2 or the secondary leaching tank 3 can be used alone. A flexible pump 4 can be freely connected to either the primary leaching tank 2 or the secondary leaching tank 3. A primary intermediate tank 5 is connected to a secondary intermediate tank 6. When the slurry in the primary intermediate tank 5 is full, it overflows into the secondary intermediate tank 6, thereby extending the leaching time, resulting in a more complete reaction and lower antimony content in the leaching residue. The secondary intermediate tank 6 is connected to a filter press 8 via a slurry pump 7. A discharge pit 10 is provided below the filter press 8, and the side of the filter press 8 is connected to a rich liquor tank 9. The rich liquor tank 9 is equipped with a baffle 11. When the filtrate on the side closest to the filter press 8 is full, it overflows into the other side, facilitating the cleaning of accumulated ore. The filter press 8 is equipped with a control cabinet, which can set the washing and blowing times according to production conditions to achieve automatic control of washing and blowing. The control cabinet of the filter press is programmed through the operation panel, and the washing and blowing times are preset to achieve automatic control, effectively washing away the antimony-rich solution remaining in the leaching residue, thereby reducing the antimony content in the leaching residue and improving the antimony recovery rate.

[0012] In operation, antimony-containing gold concentrate, liquid alkali, and antimony electrowinning lean solution are added to the feeding tank. After the slurry is thoroughly stirred, it overflows into the primary leaching tank and then into the secondary leaching tank. The slurry is then pumped into the primary intermediate tank via a hose pump and overflows into the secondary intermediate tank. Finally, the slurry is pumped into a filter press via a slurry pump. The filtrate enters the antimony electrowinning system, and the filter residue, after being washed with water and blown by air, falls into the unloading pit and is transported to the pyrometallurgical system for ore blending. The above description is only a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A device for removing antimony from antimony-containing gold concentrate, comprising a feeding tank (1), characterized in that... The feeding tank (1) is connected to the first-stage leaching tank (2) and the second-stage leaching tank (3) respectively. The first-stage leaching tank (2) is connected to the second-stage leaching tank (3). The first-stage leaching tank (2) and the second-stage leaching tank (3) are connected to the first-stage intermediate tank (5) through the hose pump (4). The first-stage intermediate tank (5) is connected to the second-stage intermediate tank (6). The second-stage intermediate tank (6) is connected to the filter press (8) through the ore pump (7). The filter press (8) is provided with an unloading pit (10) below it. The side of the filter press (8) is connected to the rich liquor tank (9). The filter press (8) is connected to the control cabinet.

2. The antimony removal device for antimony-containing gold concentrate as described in claim 1, characterized in that... The rich liquid tank (9) is equipped with a partition (11).

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