Device for removing arsenic and producing gold from arsenic-containing gold ore

Abstract

The utility model discloses a device for removing arsenic and producing gold from arsenic-containing gold ore. The device comprises a solid-liquid premixing box, a liquid-liquid mixing box and a final mixing box which are arranged side by side at intervals, the liquid-liquid mixing box is arranged between the solid-liquid premixing box and the final mixing box, a first conveying pipe communicated with the liquid-liquid mixing box is arranged on the lower portion of the solid-liquid premixing box, a first water pump is arranged in the middle of the first conveying pipe, a second conveying pipe communicated with the final mixing box is arranged on the lower portion of the liquid-liquid mixing box, and a second water pump is arranged in the middle of the second conveying pipe. A discharging pipe is arranged at the other end of the final mixing box and is connected with a water pump III; a feeding pipe extending into the solid-liquid premixing box is vertically arranged in the middle of the solid-liquid premixing box, a feeding port is formed in the position, located on one side of the feeding pipe, of the solid-liquid premixing box, a feeding and mixing part extending into the liquid-liquid mixing box is arranged on the liquid-liquid mixing box, and a feeding pipe extending into the final mixing box is vertically arranged in the middle of the final mixing box. And an electrolysis device is wound on the upper part of the feeding pipe.

Description

Technical Field

[0001] This utility model relates to the field of ore processing technology, specifically to a device for removing arsenic from arsenic-containing gold ore to produce gold. Background Technology

[0002] Gold, as an important precious metal, is widely used in jewelry, electronics, aerospace, and other fields. With the gradual depletion of high-grade gold mine resources, arsenic-bearing gold ore, as a low-grade and difficult-to-process gold ore resource, has gradually become an important source of gold production. However, arsenic in arsenic-bearing gold ore usually exists in the form of arsenopyrite (FeAsS) or arsenopyrite (FeAsS2), which have stable structures and are difficult to effectively separate using conventional beneficiation methods.

[0003] Currently, the main methods for processing arsenic-containing gold ore include roasting, pressure oxidation, and bacterial oxidation. While these methods can remove arsenic from the ore to some extent, they have the following problems:

[0004] Roasting method: produces a large amount of arsenic-containing fumes, causing serious environmental pollution and consuming a lot of energy.

[0005] Pressure oxidation method: large equipment investment, high operating costs, and high requirements for equipment materials.

[0006] Bacterial oxidation method: long processing cycle, low efficiency, and demanding environmental conditions.

[0007] Therefore, developing an efficient, environmentally friendly, and economical method for processing arsenic-containing gold ore has become an urgent problem to be solved in the gold production industry.

[0008] 2. Analysis of Existing Technologies

[0009] In recent years, some new technologies for processing arsenic-bearing gold ores have been proposed and applied, including:

[0010] Chemical leaching: This method removes arsenic by reacting chemical reagents with the arsenic in the ore, converting it into soluble arsenic compounds. While this method is simple to operate and relatively inexpensive, it also has drawbacks such as high reagent consumption and long reaction times.

[0011] Bioleaching: This method utilizes microorganisms to oxidize and decompose arsenic in ores, offering advantages such as environmental friendliness and low energy consumption. However, this method has a long processing cycle, and the activity of microorganisms is significantly affected by environmental factors.

[0012] Therefore, a device for removing arsenic from arsenic-containing gold ore to produce gold is proposed to address the current shortcomings. Utility Model Content

[0013] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a device for removing arsenic from arsenic-containing gold ore to produce gold.

[0014] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a device for removing arsenic from arsenic-containing gold ore and producing gold: including a solid-liquid premixing tank, a liquid-liquid mixing tank and a final mixing tank arranged side by side and spaced apart;

[0015] The liquid-liquid mixing tank is located between the solid-liquid premixing tank and the final mixing tank. The solid-liquid premixing tank has a conveying pipe connected to the liquid-liquid mixing tank at its lower part. A water pump is located in the middle of the conveying pipe. The liquid-liquid mixing tank has a conveying pipe connected to the final mixing tank at its lower part. A water pump is located in the middle of the conveying pipe. The final mixing tank has a discharge pipe at its other end, and a water pump is connected to the discharge pipe.

[0016] The solid-liquid premixing tank has a feed pipe extending vertically into its interior at the middle position. The solid-liquid premixing tank has a feed port on one side of the feed pipe. The liquid-liquid mixing tank has a feed mixing section extending into the liquid-liquid mixing tank. The final mixing tank has a feed pipe extending vertically into its interior at the middle position. A DC electrolysis device is wound around the upper part of the feed pipe.

[0017] As an improvement, the solid-liquid premixing tank, the liquid-liquid mixing tank, and the final mixing tank are all rectangular parallelepiped structures.

[0018] As an improvement, the feeding and mixing section includes a set of two parallel feeding pipes, the second and the third feeding pipe, which are perpendicular to the liquid-liquid mixing tank. The bottoms of the second and the third feeding pipes are connected by a U-shaped connector. A stirrer is provided inside the connector, and a liquid outlet pipe is provided at the bottom of the connector. A water pump is connected to the liquid outlet pipe.

[0019] As an improvement, the DC electrolysis device consists of an electrode spirally wound around the upper part of the feed pipe, with both ends of the electrode connected to an external power source.

[0020] As an improvement, the end of the electrode furthest from the final mixing chamber is the positive electrode, and the other end is the negative electrode.

[0021] As an improvement, the feeding tube is in a vertical "J" shape.

[0022] The advantages of this utility model compared with the prior art are as follows:

[0023] 1. The solid-liquid premixing tank is used to initially mix solid Na2SO4 and liquid C4H8O2 to form mixture one. The liquid-liquid mixing tank adds methyl alcohol xanthate and the mixing agent through the feeding mixing section, and the mixture is thoroughly mixed by a stirrer. The final mixing tank adds mixture two through a feeding pipe and performs DC electrolysis using a DC electrolysis device to finally obtain a highly efficient arsenic removal mixture. This three-stage mixing structure—solid-liquid premixing tank, liquid-liquid mixing tank, and final mixing tank—achieves thorough mixing of solid materials and liquid reagents.

[0024] 2. A spiral electrode is installed on the feeding pipe of the final mixing tank, and the mixture is electrolyzed using the principle of direct current electrolysis to further enhance the destruction effect on the arsenic crystal structure, thereby enhancing the arsenic removal effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a device for removing arsenic from arsenic-containing gold ore to produce gold according to this utility model.

[0026] Figure 2 This is a top view of a device for removing arsenic from arsenic-containing gold ore to produce gold, according to this utility model.

[0027] Figure 3 yes Figure 2 Sectional view at point AA.

[0028] As shown in the figure:

[0029] 1. Solid-liquid premixing tank; 2. Liquid-liquid mixing tank; 3. Final mixing tank; 4. Feed pipe 1; 5. Water pump 1; 6. Feed pipe 2; 7. Water pump 2; 8. Discharge pipe; 9. Water pump 3; 10. Feed pipe; 11. Feed inlet.

[0030] 12. Feeding and mixing section; 121. Feeding pipe two; 122. Feeding pipe three; 123. Connecting section; 124. Agitator; 125. Liquid outlet pipe; 126. Water pump four.

[0031] 13. Feed tube; 14. Electrode. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the utility model embodiments clearer, the technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The components of the utility model embodiments described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0033] In the description of the embodiments of the utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the 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, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the utility model embodiments, "a plurality of" means at least two.

[0036] In the description of the embodiments of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0037] As shown in the attached figures, an apparatus for removing arsenic from arsenic-containing gold ore and producing gold can improve the removal of arsenic by mixing liquid and solid materials, thereby increasing the efficiency of gold extraction, reducing the amount of gold lost in the production process of arsenic-containing gold ore, and increasing the actual recovery rate of gold in arsenic-containing gold ore. Moreover, it does not cause environmental pollution during use.

[0038] The device includes a solid-liquid premixing tank 1, a liquid-liquid mixing tank 2, and a final mixing tank 3 arranged side by side and at intervals, that is, the solid-liquid premixing tank 1, the liquid-liquid mixing tank 2, and the final mixing tank 3 are arranged linearly at intervals.

[0039] Specifically, the structures of the solid-liquid premixing tank 1, the liquid-liquid mixing tank 2, and the final mixing tank 3 can be configured according to actual conditions. In this embodiment, the solid-liquid premixing tank 1, the liquid-liquid mixing tank 2, and the final mixing tank 3 are all cuboid structures. In specific implementation, the solid-liquid premixing tank 1 is used for preliminary mixing of liquid (such as 31% C4H8O2) and solid materials (such as Na2SO4); the liquid-liquid mixing tank 2 is used for mixing the mixture from the solid-liquid premixing tank 1 and the feed mixing section; and the final mixing tank 3 is used for final mixing of the mixture from the liquid-liquid mixing tank 2 and additional mixing agents.

[0040] The liquid-liquid mixing tank 2 is located between the solid-liquid premixing tank 1 and the final mixing tank 3. The solid-liquid premixing tank 1 is provided with a conveying pipe 4 connected to the liquid-liquid mixing tank 2 at the bottom. A water pump 5 is provided in the middle of the conveying pipe 4. The liquid-liquid mixing tank 2 is provided with a conveying pipe 6 connected to the final mixing tank 3 at the bottom. A water pump 7 is provided in the middle of the conveying pipe 6. The final mixing tank 3 is provided with a discharge pipe 8 at the other end. A water pump 9 is connected to the discharge pipe 8.

[0041] The solid-liquid premixing tank 1 has a vertically extending feed pipe 10 at its center, and a feed inlet 11 is located on one side of the feed pipe 10. The liquid-liquid mixing tank 2 has a feed mixing section 12 extending into the liquid-liquid mixing tank 2.

[0042] Specifically, the feeding and mixing section 12 includes a set of two parallel feeding pipes 121 and 122 perpendicular to the liquid-liquid mixing tank 2. The bottoms of the two feeding pipes 121 and 122 are connected by a U-shaped connecting part 123. A stirrer 124 is provided inside the connecting part 123. In this embodiment, the stirrer 124 is an electric stirrer. A liquid outlet pipe 125 is provided at the bottom of the connecting part 123, and a water pump 126 is connected to the liquid outlet pipe 125.

[0043] The final mixing box 3 is provided with a feeding pipe 13 extending vertically into its interior at the middle position. Specifically, the feeding pipe 13 has a vertical "J" shaped structure.

[0044] A DC electrolysis device is wound around the upper part of the feeding pipe 13.

[0045] Specifically, the DC electrolysis device consists of an electrode 14 spirally wound around the upper part of the feed pipe 13, with both ends of the electrode 14 connected to an external power supply. The end of the electrode 14 furthest from the final mixing tank 3 is the positive electrode, and the other end is the negative electrode.

[0046] In this embodiment, the electrode 14 is selected as a titanium-coated ruthenium (Ti / RuO2) electrode or a platinum electrode. The electrode 14 is spirally wound around the upper part of the outside of the feed tube 13. The electrode 14 is connected to the positive and negative terminals of the power supply through wires to ensure that the current can pass through the liquid to carry out the direct current electrolysis reaction.

[0047] During installation, a protective layer is also provided on the outer layer of electrode 14 to prevent the electrode from directly contacting the external environment and to provide insulation. In addition, electrode 14 can also be arranged in a mesh structure on the upper part of feed pipe 13.

[0048] In a specific implementation of this utility model, 31% C4H8O2 is added to the solid-liquid premixing tank 1 through the feed pipe 10, and solid material Na2SO4 is added to the solid-liquid premixing tank 1 through the feed port 11, so as to achieve the mixing of the two in the solid-liquid premixing tank 1 and obtain a mixed liquid.

[0049] Simultaneously, 15% methyl alcohol xanthate is added to the feeding mixing section 12 through the second feeding pipe 121, and 14.1% of the mixing agent is added to the feeding mixing section 12 through the third feeding pipe 122. The two are mixed by the stirrer 124 set in the connecting section 123, and the mixed liquid is transported to the liquid-liquid mixing tank 2 by the fourth water pump 126. The mixed liquid one is then transported to the liquid-liquid mixing tank 2 through the first conveying pipe 4 under the action of the first water pump 5, so as to mix with the liquid in the liquid-liquid mixing tank 2 to obtain mixed liquid two.

[0050] Then, the mixed liquid II, under the action of water pump II 7, is transported to the final mixing tank 3 through conveying pipe II 6. At the same time, the mixing agent II is added to the final mixing tank 3 through feeding pipe 13 to achieve mixing with the mixed liquid II. When the mixing agent II enters the feeding pipe 13, the DC electrolysis device performs DC electrolysis treatment on it to obtain the final mixed liquid, so as to enhance the destruction of the arsenic crystal structure in the arsenic-containing gold ore and achieve the effect of improving arsenic removal and gold production.

[0051] The final mixture is transported to the subsequent processing stage through discharge pipe 8 and water pump 3 9.

[0052] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An apparatus for removing arsenic from arsenic-containing gold ore to produce gold, characterized in that: It includes a solid-liquid premixing tank (1), a liquid-liquid mixing tank (2), and a final mixing tank (3) arranged side by side and spaced apart; The liquid-liquid mixing tank (2) is located between the solid-liquid premixing tank (1) and the final mixing tank (3). The solid-liquid premixing tank (1) is provided with a conveying pipe (4) connected to the liquid-liquid mixing tank (2) at the bottom. A water pump (5) is provided in the middle of the conveying pipe (4). The liquid-liquid mixing tank (2) is provided with a conveying pipe (6) connected to the final mixing tank (3) at the bottom. A water pump (7) is provided in the middle of the conveying pipe (6). The final mixing tank (3) is provided with a discharge pipe (8) at the other end. A water pump (9) is connected to the discharge pipe (8). The solid-liquid premixing tank (1) has a feed pipe (10) extending vertically into its interior at the middle position. The solid-liquid premixing tank (1) has a feed inlet (11) on one side of the feed pipe (10). The liquid-liquid mixing tank (2) has a feed mixing section (12) extending into the liquid-liquid mixing tank (2). The final mixing tank (3) has a feed pipe (13) extending vertically into its interior at the middle position. The feed pipe (13) has a DC electrolysis device wrapped around its upper part.

2. The apparatus for removing arsenic from arsenic-containing gold ore to produce gold according to claim 1, characterized in that: The solid-liquid premixing tank (1), the liquid-liquid mixing tank (2), and the final mixing tank (3) are all rectangular parallelepiped structures.

3. The apparatus for removing arsenic from arsenic-containing gold ore to produce gold according to claim 1, characterized in that: The feeding mixing section (12) includes a set of two parallel feeding pipes (121) and three feeding pipes (122) arranged perpendicular to the liquid-liquid mixing tank (2). The bottoms of the two feeding pipes (121) and three feeding pipes (122) are connected by a U-shaped connecting part (123). A stirrer (124) is provided in the connecting part (123). A liquid outlet pipe (125) is provided at the bottom of the connecting part (123). A water pump (126) is connected to the liquid outlet pipe (125).

4. The apparatus for removing arsenic from arsenic-containing gold ore to produce gold according to claim 1, characterized in that: The DC electrolysis device consists of an electrode (14) spirally wound around the upper part of the feed pipe (13), with both ends of the electrode (14) connected to an external power source.

5. The apparatus for removing arsenic from arsenic-containing gold ore to produce gold according to claim 4, characterized in that: The electrode (14) is positive at one end away from the final mixing tank (3), and negative at the other end.

6. The apparatus for removing arsenic from arsenic-containing gold ore to produce gold according to claim 1, characterized in that: The feeding pipe (13) has a vertical "J" shaped structure.

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