Leaching equipment for hydrometallurgy

Abstract

The utility model relates to the technical field of hydrometallurgy, and discloses leaching equipment for hydrometallurgy. The leaching equipment for hydrometallurgy comprises a leaching barrel, a supporting frame is fixedly installed on the outer side of the leaching barrel, a liquid discharging valve is fixedly installed at the bottom end of the leaching barrel, a heating coil and a shell are fixedly installed on the outer side of the leaching barrel, a fixing frame is installed in the leaching barrel in an embedded mode, and a liquid discharging valve is fixedly installed at the bottom end of the leaching barrel. A fixed pipe is fixedly installed in the fixed frame, a movable pipe is movably installed above the leaching barrel, a filter screen is fixedly installed at the bottom end of the movable pipe, a gear can drive a stirring frame to rotate through a gear ring, and materials and leaching liquid are stirred through a branch structure on the outer side of the stirring frame; and the liquid pump can pump out the leaching liquid at the bottom of the leaching barrel through the water pumping pipe, and the leaching liquid is limited to fall back to the position above the filter screen through the liquid discharging pipe, so that the leaching liquid can be heated while the leaching liquid and the materials are uniformly mixed, and the leaching efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrometallurgical technology, specifically to a leaching device for hydrometallurgical processes. Background Technology

[0002] Leaching is an important process in hydrometallurgy. It involves immersing ores, concentrates, roasted sand, or other materials in a selected solvent. By utilizing the different solubilities of various components in the solvent, the process allows the soluble metals or impurities to be extracted to dissolve into the solution under certain conditions. For example, in the leaching process of hydrometallurgical zinc, dilute sulfuric acid solution or zinc electrolysis waste liquid is used as a solvent to dissolve zinc roasted sand, allowing the zinc in the roasted sand to dissolve in the sulfuric acid solution.

[0003] The existing Chinese utility model patent with publication number CN208617957U discloses a simplified hydrometallurgical leaching device, including a reaction tank, an inlet pipe, an outlet pipe, a controller, a top plate, a support, a crushing mechanism, a mixing mechanism, and two support plates. The crushing mechanism includes a crushing pipe, a hopper, a feed pipe, an outlet pipe, and two drive chambers. The crushing pipe is equipped with a reciprocating assembly, a vertical plate, a screen, and two first saw teeth. The drive chamber is equipped with a drive assembly, which includes a translation unit, a crushing block, and second saw teeth. The mixing mechanism includes a lifting assembly, a first motor, a first drive shaft, a filter screen, a screen cover, and two sealing assemblies. This simplified hydrometallurgical leaching device crushes large pieces of ore into particles through the crushing mechanism, increasing the specific surface area of ​​the ore, which is beneficial for leaching. Furthermore, the mixing mechanism causes the ore particles to rotate and move up and down in the leaching agent, ensuring full contact with the leaching agent, accelerating the leaching efficiency, and improving the practicality of the equipment.

[0004] To increase the contact area between the material and the leachate, the material is usually in powder form during leaching. This results in a period of sedimentation required when the leachate is discharged after leaching. Furthermore, the powdery material is carried out during the discharge of the leachate, which is very inconvenient. In addition, existing leaching devices only increase leaching efficiency by stirring, which is not very effective. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a leaching device for hydrometallurgy, which has the advantages of improving leaching efficiency and preventing solid materials from being carried out during the discharge of the leachate, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a leaching device for hydrometallurgy, comprising: a leaching tank, a support frame fixedly installed on the outside of the leaching tank, a drain valve fixedly installed at the bottom of the leaching tank, a heating coil and a shell fixedly installed on the outside of the leaching tank, a fixed frame fitted inside the leaching tank, a fixed pipe fixedly installed inside the fixed frame, a movable pipe movably installed above the leaching tank, a filter screen fixedly installed at the bottom of the movable pipe, a top cover movably installed above the movable pipe, a bearing fixedly installed at the center of the top cover, a stirring frame fixedly installed at the center of the bearing, a gear ring fixedly installed at the top of the stirring frame, a motor fixedly installed above the top cover, a gear fixedly installed at the bottom of the motor shaft, a liquid pump fixedly installed above the top cover, a water suction pipe fixedly installed at the inlet end of the liquid pump, and a drain pipe fixedly installed at the outlet end of the liquid pump; the water suction pipe facilitates the liquid pump to extract the leaching liquid from the bottom of the leaching tank.

[0009] As a preferred embodiment of this utility model, the bottom of the leaching tank is a conical structure, and the heating coil is installed equidistantly on the outside of the leaching tank with the center of the leaching tank as a reference. The heating coil is located between the outside of the leaching tank and the inner wall of the outer shell; the heating coil can facilitate the heating of the leaching solution.

[0010] As a preferred embodiment of this utility model, the center of the fixed tube and the center of the leaching tank are in the same vertical line, the fixed tube is slidably connected to the leaching tank through a fixing frame, and the top of the movable tube is provided with an annular protrusion structure; the movable tube can restrict the position of the filter screen.

[0011] As a preferred embodiment of this utility model, the movable tube and the leaching tank are slidably connected, the center of the filter screen is provided with an opening structure for the fixed tube to fit into, and the filter screen and the fixed tube are fixedly connected, the center of the top cover is provided with an opening for fitting into the bearing; the top cover can restrict the position of the stirring rack.

[0012] As a preferred embodiment of this utility model, the stirring frame is rotatably connected to the top cover via a bearing, and a horizontal branch is provided on the outer side of the stirring frame. The inner diameter of the stirring frame is larger than the outer diameter of the fixed tube. The stirring frame is capable of stirring the leachate.

[0013] As a preferred embodiment of this utility model, the gear and the toothed ring mesh with each other, and the bottom end of the pumping pipe is located below the bottom end of the fixed pipe; the gear can drive the toothed ring to rotate.

[0014] As a preferred embodiment of this utility model, the bottom end of the drain pipe penetrates the top cover and is located between the outer wall of the fixed pipe and the inner wall of the leaching tank; the drain pipe facilitates the return of the leaching liquid.

[0015] Compared with the prior art, this utility model provides a leaching device for hydrometallurgy, which has the following beneficial effects:

[0016] 1. This utility model utilizes a heating coil, which is installed equidistantly on the outside of the leaching tank with the center as the reference. When the heating coil is energized, it generates heat to heat the leachate inside the leaching tank. When the motor drives the gear to rotate, the gear meshes with the gear ring, and the gear drives the stirring frame to rotate through the gear ring. The material and leachate are stirred through the branch structure on the outside of the stirring frame. The liquid pump can draw out the leachate from the bottom of the leaching tank through the water pump pipe and prevent the leachate from falling back above the filter screen through the drain pipe. This method can heat the leachate while uniformly mixing it with the material, thereby improving the leaching efficiency.

[0017] 2. This utility model utilizes a filter screen, which is fixed to the bottom of a movable tube. The center of the filter screen has an opening structure for the fixed tube to fit into, and the filter screen and the fixed tube form a fixed connection. The material is located above the filter screen, which only allows liquid to pass through. Material with a particle size larger than the filter screen pores will be restricted to the top by the filter screen, thus ensuring that the leachate at the bottom of the filter screen is free of solid impurities. The leachate below the filter screen is pumped to the top of the filter screen through a pumping pipe and a drain pipe to avoid changes in the concentration of the leachate below the filter screen and the leachate above the filter screen. This method ensures that there are no solid impurities inside the leachate when it is discharged. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the heating coil installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the movable tube of this utility model;

[0021] Figure 4 This is a schematic diagram of the liquid pump installation structure of this utility model;

[0022] The components are as follows: 1. Leaching tank; 11. Support frame; 12. Drain valve; 13. Heating coil; 14. Outer shell; 15. Fixing frame; 16. Fixing pipe; 17. Movable pipe; 18. Filter screen; 19. Top cover; 110. Bearing; 111. Stirring frame; 112. Gear ring; 113. Motor; 114. Gear; 115. Liquid pump; 116. Water suction pipe; 117. Drain pipe. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4 In this embodiment, a leaching device for hydrometallurgy includes: a leaching tank 1, a support frame 11 fixedly installed on the outside of the leaching tank 1, a drain valve 12 fixedly installed at the bottom of the leaching tank 1, a heating coil 13 and a shell 14 fixedly installed on the outside of the leaching tank 1, a fixing frame 15 fitted inside the leaching tank 1, a fixing pipe 16 fixedly installed inside the fixing frame 15, a movable pipe 17 movably installed above the leaching tank 1, a filter screen 18 fixedly installed at the bottom of the movable pipe 17, and the movable pipe 17... A top cover 19 is movably installed on the top. A bearing 110 is fixedly installed at the center of the top cover 19. A stirring frame 111 is fixedly installed at the center of the bearing 110. A gear ring 112 is fixedly installed at the top of the stirring frame 111. A motor 113 is fixedly installed on the top of the top cover 19. A gear 114 is fixedly installed at the bottom of the shaft of the motor 113. A liquid pump 115 is fixedly installed on the top of the top cover 19. A water inlet pipe 116 is fixedly installed at the liquid inlet end of the liquid pump 115. A drain pipe 117 is fixedly installed at the liquid outlet end of the liquid pump 115.

[0027] The bottom of the leaching tank 1 is conical. The heating coil 13 is installed equidistantly on the outside of the leaching tank 1 with the center of the leaching tank 1 as the reference. The heating coil 13 is located between the outside of the leaching tank 1 and the inner wall of the outer shell 14. The center of the fixed tube 16 is in the same vertical line as the center of the leaching tank 1. The fixed tube 16 is slidably connected to the leaching tank 1 through the fixing bracket 15. The top of the movable tube 17 is provided with an annular protrusion structure. The movable tube 17 is slidably connected to the leaching tank 1. The center of the filter screen 18 is provided with an opening structure for the fixed tube 16 to fit into. The filter screen 18 and the fixed tube 16 are fixedly connected. The top cover 19 has an opening in the center that fits into the bearing 110. The stirring frame 111 is rotatably connected to the top cover 19 through the bearing 110. The stirring frame 111 has a horizontal branch on its outer side. The inner diameter of the stirring frame 111 is larger than the outer diameter of the fixed tube 16. The gear 114 and the gear ring 112 mesh with each other. The bottom end of the water pumping pipe 116 is located below the bottom end of the fixed tube 16. The bottom end of the drain pipe 117 passes through the top cover 19 and is located between the outer wall of the fixed tube 16 and the inner wall of the leaching tank 1.

[0028] Specifically, the motor 113 is a BLDC75W model. The leaching tank 1 can restrict the position of the leachate. The support frame 11 is fixed to the outside of the leaching tank 1, providing support and raising the leaching tank 1. The drain valve 12 facilitates the discharge of the leachate. The heating coil 13 generates heat after being energized to heat the leachate inside the leaching tank 1. The outer shell 14 protects the heating coil 13. The fixing frame 15 restricts the position of the fixing tube 16. The fixing tube 16 prevents the leachate above the filter screen 18 from flowing downwards through the opening in the center of the filter screen 18 and restricts the position of the material. The movable tube... 17 can slide the filter screen 18 and the fixed pipe 16 out of the leaching tank 1 by sliding, so as to carry out the waste residue. The top cover 19 can restrict the position of the stirring frame 111. When the motor 113 drives the gear 114 to rotate, the gear 114 will drive the stirring frame 111 to rotate through the gear ring 112 because the gear 114 and the gear ring 112 mesh with each other. The branch structure on the outside of the stirring frame 111 will stir the material and the leachate. The liquid pump 115 can draw out the leachate at the bottom of the leaching tank 1 through the water pumping pipe 116 and restrict the leachate from falling back to the top of the filter screen 18 through the drain pipe 117.

[0029] In use, the heating coil 13 is installed equidistantly on the outside of the leaching tank 1, with the center of the leaching tank 1 as the reference. When energized, the heating coil 13 generates heat to heat the leachate inside the leaching tank 1. When the motor 113 drives the gear 114 to rotate, the gear 114 meshes with the gear ring 112, driving the stirring frame 111 to rotate via the gear ring 112. The branch structure on the outside of the stirring frame 111 stirs the material and the leachate. The liquid pump 115 draws the leachate from the bottom of the leaching tank 1 through the water suction pipe 116 and prevents the leachate from falling back above the filter screen 18 through the drain pipe 117. This method allows for uniform mixing of the leachate and the material while simultaneously improving the quality of the leachate. Heat is used to improve leaching efficiency. The filter screen 18 is fixed to the bottom end of the movable tube 17. The center of the filter screen 18 is provided with an opening structure that fits into the fixed tube 16, and the filter screen 18 and the fixed tube 16 form a fixed connection. The material is located above the filter screen 18. The filter screen 18 can only allow liquid to pass through. The material with a particle size larger than the filter screen 18 pores will be restricted above the filter screen 18, so that the leaching liquid at the bottom of the filter screen 18 is free of solid impurities. The leaching liquid below the filter screen 18 is transported to the top of the filter screen 18 through the pump 115, the pump pipe 116 and the drain pipe 117, to avoid the change in the concentration of the leaching liquid below the filter screen 18 and the concentration of the leaching liquid above the filter screen 18. This method can ensure that there are no solid impurities inside the leaching liquid when it is discharged.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leaching device for hydrometallurgy, characterized in that, include: A leaching tank (1) is provided, with a support frame (11) fixedly installed on its outer side. A drain valve (12) is fixedly installed at the bottom of the leaching tank (1). A heating coil (13) and a shell (14) are fixedly installed on the outer side of the leaching tank (1). A fixing frame (15) is fitted inside the leaching tank (1). A fixing pipe (16) is fixedly installed inside the fixing frame (15). A movable pipe (17) is movably installed above the leaching tank (1). A filter screen (18) is fixedly installed at the bottom of the movable pipe (17). A top cover (19) is movably installed above the movable pipe (17). The top cover (19) is fixedly equipped with a bearing (110) at its center, and a stirring frame (111) is fixedly equipped with a stirring frame (111) at its center. A gear ring (112) is fixedly equipped with the top of the stirring frame (111). A motor (113) is fixedly equipped with a motor (113) above the top cover (19). A gear (114) is fixedly equipped with the bottom of the shaft of the motor (113). A liquid pump (115) is fixedly equipped with a liquid pump (115) above the top cover (19). A water pump pipe (116) is fixedly equipped with the liquid inlet end of the liquid pump (115). A liquid pump pipe (117) is fixedly equipped with the liquid outlet end of the liquid pump (115).

2. The leaching equipment for hydrometallurgy according to claim 1, characterized in that: The bottom of the leaching tank (1) is a conical structure. The heating coil (13) is installed at equal intervals above and below the center of the leaching tank (1) on the outside of the leaching tank (1). The heating coil (13) is located between the outside of the leaching tank (1) and the inner wall of the outer shell (14).

3. The leaching equipment for hydrometallurgy according to claim 1, characterized in that: The center of the fixed tube (16) and the center of the leaching tank (1) are in the same vertical line. The fixed tube (16) and the leaching tank (1) are connected by a fixed frame (15). The top of the movable tube (17) is provided with an annular protrusion structure.

4. The leaching equipment for hydrometallurgy according to claim 1, characterized in that: The movable tube (17) is slidably connected to the leaching tank (1), the center of the filter screen (18) is provided with an opening structure for fitting the fixed tube (16), and the filter screen (18) and the fixed tube (16) are fixedly connected, and the center of the top cover (19) is provided with an opening for fitting the bearing (110).

5. A leaching apparatus for hydrometallurgy according to claim 1, characterized in that: The stirring rack (111) is rotatably connected to the top cover (19) via a bearing (110). A horizontal branch is provided on the outer side of the stirring rack (111). The inner diameter of the stirring rack (111) is larger than the outer diameter of the fixed tube (16).

6. The leaching equipment for hydrometallurgy according to claim 1, characterized in that: The gear (114) meshes with the gear ring (112), and the bottom end of the pumping pipe (116) is located below the bottom end of the fixed pipe (16).

7. The leaching equipment for hydrometallurgy according to claim 1, characterized in that: The bottom end of the drain pipe (117) penetrates the top cover (19) and is located between the outer wall of the fixed pipe (16) and the inner wall of the leaching tank (1).

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