Gas distribution device with gas microbubble device

Abstract

The utility model discloses a gas distribution device with a gas microbubble device. The gas distribution device comprises a leaching container, the gas distribution ring is horizontally arranged in the leaching container; the plurality of gas guide assemblies are distributed on the gas distribution ring; the gas microbubble device is arranged on the gas outlet of the gas guide assembly; the gas supply assembly is arranged on the gas distribution ring; the stirrer is arranged in the gas distribution ring, and the working part of the stirrer is positioned in the center of the plurality of gas guide components.

Description

Technical Field

[0001] This utility model relates to the field of hydrometallurgical equipment technology, and in particular to a gas distribution device with a gas microbubble generator. Background Technology

[0002] Oxidative leaching is a commonly used material leaching method in hydrometallurgical processes. Air and oxygen are often the preferred oxidants due to their convenient availability and low cost. Hydrometallurgical leaching containers for oxidative leaching typically require gas distribution devices. Oxygen is crucial to the entire leaching oxidation reaction. The oxygen supply, the distribution of oxygen in the reaction medium, the bubble size, and the residence time are key conditions for oxygen to function as an oxidant in the oxidation reaction.

[0003] Traditional gas distributors suffer from problems such as large bubble size, uneven bubble dispersion, rapid gas escape velocity, and low oxygen utilization, which affect the yield of the target product. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a gas distribution device with a gas microbubble generator.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A gas distribution device with a gas microbubble generator, comprising:

[0007] leaching vessel;

[0008] A gas distribution ring is horizontally positioned inside the leaching container;

[0009] Several gas guiding components are distributed on the gas distribution ring;

[0010] Gas microbubbler, located at the outlet of the gas guiding component;

[0011] Gas supply components are installed on the gas distribution ring;

[0012] The stirrer is located within the gas distribution ring, and its working part is located at the center of several gas guiding components.

[0013] The air guiding assembly includes:

[0014] air delivery tube;

[0015] The air duct includes:

[0016] First air duct;

[0017] The second air guide tube is located below the first air guide tube and is connected to the first air guide tube via a double compression fitting.

[0018] The gas microbubble generator includes:

[0019] case;

[0020] End caps are fitted and installed at the bottom of the housing;

[0021] The air core is located inside the housing.

[0022] The air core includes:

[0023] Several air droplets are evenly distributed inside the shell;

[0024] A pressure pad is placed at the bottom of the air bead;

[0025] Several layers of air mesh are set under the pressure pad;

[0026] An air hood is installed at the lower part of the air mesh;

[0027] The gas hood consists of a hood edge and a mesh welded thereon, with the hood edge fixedly installed on the brim of the end cap at the bottom.

[0028] The mesh size of the cover is 5 mesh.

[0029] The air mesh consists of six layers of titanium mesh with different mesh sizes from bottom to top, and the mesh sizes of the six layers of titanium mesh from bottom to top are 200 mesh, 150 mesh, 120 mesh, 100 mesh, 60 mesh and 30 mesh respectively.

[0030] The gas supply assembly includes:

[0031] Gas connection connector, located on the gas distribution ring;

[0032] A gas flow regulating valve is installed on the gas inlet end of the gas connection connector;

[0033] The gas control valve is located at the inlet end of the gas flow regulating valve.

[0034] The stirrer includes:

[0035] The agitator has its shaft connected to the power source.

[0036] The beneficial effects of this utility model are:

[0037] 1. By installing a gas flow regulating valve on the gas connection joint, the flow rate of the gas can be adjusted according to the needs, and the amount of gas introduced can be measured.

[0038] 2. By placing the gas connection connector at the midpoint between any two adjacent gas guide pipes, the introduced gas can be evenly distributed within the gas distribution ring. By evenly distributing multiple gas guide components along the circumference of the gas distribution ring, the gas distribution entering the leaching container can be relatively uniform.

[0039] 3. The first and second air guide tubes are connected by a double compression fitting, which facilitates disassembly and cleaning and also meets the diverse needs of changing the diameter of the air guide tubes.

[0040] 4. By setting a gas microbubble device at the lower end of the second gas guide tube, the gas from the gas guide tube can be dispersed in a "trumpet shape", expanding the gas distribution area. The gas is further diverted through the gas bead layer and gas mesh layer and comes out of the gas hood, generating a large number of small bubbles. The gas distribution is uniform, the gas escape speed is slowed down, and more gas participates in the oxidation reaction.

[0041] 5. By setting a large-mesh gas mesh on the outermost layer, solid particles in the solution can be effectively prevented from entering the gas mesh layer and blocking the gas channels, thus ensuring smooth gas flow.

[0042] 6. The gas microbubble generator is threadedly connected to the gas delivery tube, making it easy to disassemble and clean the gas core.

[0043] 7. Since the central vertical part of the gas distribution device is empty, the stirring paddle of the leaching equipment can be installed. When the gas distribution device is used in conjunction with the stirring paddle, the gas-liquid or gas-solid-liquid materials can be mixed quickly and evenly, which is conducive to the smooth progress of the leaching reaction.

[0044] 8. This invention features an adjustable and measurable gas supply flow rate, ensuring smooth and unobstructed airflow. The gas introduced into the leaching container is evenly distributed in the reaction medium, generating a large number of small gas bubbles that can fully contact the solid particles to produce an oxidation reaction. Bubbles that do not yet participate in the reaction escape slowly, allowing them to further participate in the oxidation reaction during their escape. This results in high oxygen utilization and a high yield of the target product. It can be equipped with a stirring paddle from a leaching device and used in conjunction with a mixer, which is beneficial for the leaching of materials involved in gas-liquid two-phase or gas-solid-liquid three-phase reactions, and improves the oxygenation effect during leaching. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of this utility model;

[0046] Figure 2 This is a schematic diagram of the gas supply component of this utility model;

[0047] Figure 3 This is a schematic diagram of the gas microbubble generator structure of this utility model;

[0048] Figure 4 This is a diagram showing the positional relationship of the air beads in this utility model;

[0049] Figure 5 This is a schematic diagram of the air network structure of this utility model;

[0050] Figure 6 This is a schematic diagram of the air hood structure of this utility model;

[0051] Figure 7 This is a front view of the air mesh of this utility model.

[0052] The components include: gas distribution ring 1, gas guiding assembly 2, gas guiding pipe 201, first gas guiding pipe 2011, second gas guiding pipe 2012, double compression fitting 202, gas microbubble generator 3, shell 301, end cap 302, cap edge 3021, gas core 303, gas cover 3031, cover edge 30311, cover net 30312, gas net 3032, gas bead 3033, pressure pad 3034, gas supply assembly 4, gas connection connector 401, gas control valve 402, gas flow regulating valve 403, stirrer 5, stirring paddle 501, and leaching container 6. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0054] like Figures 1 to 7As shown, a gas distribution device with a gas microbubble generator includes: an leaching container 6; a gas distribution ring 1 horizontally disposed within the leaching container 6; a plurality of gas guiding components 2 distributed on the gas distribution ring 1; a gas microbubble generator 3 disposed at the outlet of the gas guiding components 2; a gas supply component 4 disposed on the gas distribution ring 1; and a stirrer 5 disposed within the gas distribution ring 1, with its working part located at the center of the plurality of gas guiding components 2. The gas guiding component 2 includes: a gas guiding pipe 201; the gas guiding pipe 201 includes: a first gas guiding pipe 2011; and a second gas guiding pipe 2012 disposed below the first gas guiding pipe 2011 and connected to the first gas guiding pipe 2011 via a double-ferrule connector 202. The gas microbubble generator 3 includes: a housing 301; an end cap 302 fitted and installed at the bottom of the housing 301; and a gas core 303 disposed within the housing 301. The air core 303 includes: a plurality of air beads 3033 evenly distributed within the housing 301; a pressure pad 3034 disposed at the bottom of the air beads 3033; a plurality of layers of air mesh 3032 disposed below the pressure pad 3034; and an air cover 3031 disposed below the air mesh 3032. The air cover 3031 consists of a cover edge 30311 and a cover mesh 30312 welded thereon. The cover edge 30311 is fixedly installed on the cap edge 3021 at the bottom of the end cap 302. The mesh count of the cover mesh 30312 is 5 mesh. The air mesh 3032 consists of six layers of titanium mesh with different mesh counts from bottom to top, and the mesh counts of the six layers of titanium mesh from bottom to top are 200 mesh, 150 mesh, 120 mesh, 100 mesh, 60 mesh, and 30 mesh, respectively. The gas supply assembly 4 includes: a gas connection connector 401, disposed on the gas distribution ring 1; a gas flow regulating valve 403, disposed on the gas inlet end of the gas connection connector 401; and a gas control valve 402, disposed on the gas inlet end of the gas flow regulating valve 403. The agitator 5 includes: an agitator paddle 501, the shaft of which is connected to a power source.

[0055] The gas distribution ring 1 is an annular tubular structure with interconnected interiors; the gas guide tube 201 includes a first gas guide tube 2011 connected to the gas distribution ring 1, and a second gas guide tube 2012 connected to the bottom end of the first gas guide tube 2011. A double compression fitting 202 is provided between the first gas guide tube 2011 and the second gas guide tube 2012; the gas microbubble generator 3 includes a shell 301, an end cap 302, and a gas core 303. The shell 301 is trumpet-shaped and threadedly connected to the bottom end of the second gas guide tube 2012; the end cap 302 is hollow with a cap edge 3021, located at the lower part of the shell 301, and threadedly connected to the shell 301; the gas core 303 is composed of a gas cover 3031, a gas mesh 3032, a gas bead 3033, and a pressure pad 3034, and is located in the cavity formed by the shell 301 and the end cap 302. The gas hood 3031 is made of titanium and consists of a hood edge 30311 and a welded mesh 30312. It is positioned on the brim 3021 of the end cap 302, and the mesh 30312 has a mesh count of 5. The gas mesh 3032 is also made of titanium and consists of six layers of titanium mesh 30321-30326 with different mesh counts from bottom to top. The six layers of titanium mesh are tightly bonded together and positioned on the hood 30321. The mesh counts of the six layers of titanium mesh from bottom to top are 200 mesh, 150 mesh, 120 mesh, 100 mesh, 60 mesh, and 30 mesh. The pressure pad 3034 is positioned above the gas mesh 3032 and below the shell 301. The gas beads 3033 are solid polytetrafluoroethylene spheres, made by mixing spheres of different specifications in a 1:1:1 ratio and randomly placing them on the gas mesh 3032, with the thickness not exceeding the center of the "V" shape of the shell. The solid spheres have diameters of 10mm, 6mm, and 3mm. A gas distribution device is positioned above the stirring paddle 501 of the agitator 5 in the leaching container 6, and a gas distribution ring 1 is positioned above the solution. The gas distribution device is fixed to the wall of the leaching container 6. The gas supply assembly 4 includes a gas connection connector 401 connected to the gas distribution ring 1. The gas connection connector 401 is equipped with a gas control valve 402 and a gas flow regulating valve 403. The connection point between the gas connection connector 401 and the gas distribution ring 1 is located between two adjacent gas guiding assemblies 2. The free end of the gas connection connector 401 is connected to an external gas supply device.

[0056] Both the first air guide tube 2011 and the second air guide tube 2012 are open at both ends. The lower end of the second air guide tube 2012 is threaded. The upper end of either the first air guide tube 2011 is fixed to the lower part of the gas distribution ring 1 and communicates with its interior. The diameter of the first air guide tube 2011 and the diameter of the second air guide tube 2012 can be the same or different. The specifications of the double compression fitting 202 are the same or different depending on the diameter of the first air guide tube 2011 and the second air guide tube 2012.

[0057] By setting a large-mesh gas mesh on the outermost layer of the gas microbubble generator 3, solid particles in the solution can be effectively prevented from entering the gas mesh layer and blocking the gas channel, thus ensuring smooth gas flow. The gas microbubble generator 3 is threadedly connected to the gas guide tube 201, facilitating disassembly and cleaning of the gas core 303.

[0058] In use, first connect all components and place them in the reaction medium of the leaching container 6. The gas distribution device is set above the stirring paddle 501 of the stirrer 5 in the leaching container 6, and the gas distribution ring 1 is set above the solution. The gas distribution device is fixed to the wall of the leaching container 6. This ensures the stability of the gas distribution device during use and avoids the gas microbubble generator 3 from contacting the bottom of the leaching container 6, which would cause solid particles of the leached material to accumulate and affect the material dispersion and leaching effect. The stirrer 5 is set in the center of the leaching container 6, taking care not to contact or rub against the gas distribution device. The gas connection joint 401 of the gas supply component 4 is connected to the external gas supply equipment. The gas control valve 402 and the gas flow regulating valve 403 are opened. The external gas enters the reaction medium in sequence through the gas connection joint 401, the gas control valve 402, the gas flow regulating valve 403, the gas distribution ring 1, the first gas guide pipe 2011 and the second gas guide pipe 2012 of the gas guide component 2, and the gas microbubble generator 3 to react with the leached material. The stirrer 5 can be turned on when the gas is supplied.

[0059] In this example, one way to achieve efficient gas utilization is as follows: the flow rate and volume of the introduced gas can be adjusted and measured by the gas flow regulating valve 403; after entering the gas distribution ring 1, the gas is evenly distributed into the gas guiding component 2, which splits the gas into multiple streams, and then the gas from the gas guiding pipe 201 is dispersed in a "trumpet shape" through the shell 301 of the gas microbubble device 3, expanding the gas distribution area. The gas is further divided through the gas bead 3033 layer and the gas mesh 3032 layer and exits from the gas hood 3031, generating a large number of small bubbles. The gas is evenly distributed, and the small bubbles are in full contact with the reaction medium in the leaching container 6, allowing more gas to participate in the oxidation reaction. As the reaction continues, the gas that has not participated in the reaction rises and escapes in the reaction medium. Due to its small size, the gas escapes slowly and continues to participate in the reaction during the rising and escaping process. At the same time, the gas distribution device works in conjunction with the stirring paddle 501 of the leaching container 6 to quickly achieve uniform mixing of gas-liquid or gas-solid-liquid materials, which is conducive to the smooth progress of the leaching reaction, thereby achieving efficient utilization of the introduced gas.

[0060] This invention provides a gas distribution device with a gas microbubble generator. The gas flow rate is adjustable and measurable. A large-mesh gas mesh on the outermost layer effectively prevents solid particles in the solution from entering the mesh and blocking the gas channels, ensuring smooth and unobstructed gas flow. The gas introduced into the leaching container is evenly distributed in the reaction medium, generating a large number of small gas bubbles that can fully contact the solid particles to produce an oxidation reaction. Bubbles that do not yet participate in the reaction escape slowly and can further participate in the oxidation reaction during their escape, resulting in high oxygen utilization and a high yield of the target product. An agitator from a leaching device can be installed for use with a mixer, which is beneficial for the leaching of materials involved in gas-liquid two-phase or gas-solid-liquid three-phase reactions, and improves the oxygenation effect during leaching.

[0061] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A gas distribution device with a gas microbubble generator, characterized in that, include: Leaching vessel (6); A gas distribution ring (1) is horizontally positioned inside the leaching container (6); Several gas guiding components (2) are distributed on the gas distribution ring (1); Gas microbubble generator (3) is set on the outlet of gas guiding component (2); Gas supply component (4) is installed on gas distribution ring (1); The stirrer (5) is set inside the gas distribution ring (1), and its working part is located at the center of several gas guiding components (2).

2. The gas distribution device with a gas microbubble generator according to claim 1, characterized in that, The air guiding component (2) includes: Air duct (201); The air duct (201) includes: First air tube (2011); The second air guide tube (2012) is located below the first air guide tube (2011) and is connected to the first air guide tube (2011) via a double compression fitting (202).

3. A gas distribution device with a gas microbubble generator according to claim 1, characterized in that, The gas microbubble generator (3) includes: Housing (301); End cap (302) is fitted and installed at the bottom of housing (301); The air core (303) is disposed inside the housing (301).

4. A gas distribution device with a gas microbubble generator according to claim 3, characterized in that, The air core (303) includes: Several air beads (3033) are evenly distributed inside the shell (301); A pressure pad (3034) is disposed at the bottom of the air bead (3033); Several layers of air mesh (3032) are set under the pressure pad (3034); Air hood (3031), with air mesh (3032) installed at the lower part; The air hood (3031) consists of a hood edge (30311) and a hood mesh (30312) welded thereon. The hood edge (30311) is fixedly installed on the cap edge (3021) at the bottom of the end cap (302).

5. A gas distribution device with a gas microbubble generator according to claim 4, characterized in that: The mesh count of the cover (30312) is 5 mesh.

6. A gas distribution device with a gas microbubble generator according to claim 4, characterized in that: The gas mesh (3032) is composed of six layers of titanium mesh with different mesh sizes from bottom to top, and the mesh sizes of the six layers of titanium mesh from bottom to top are 200 mesh, 150 mesh, 120 mesh, 100 mesh, 60 mesh and 30 mesh respectively.

7. A gas distribution device with a gas microbubble generator according to claim 1, characterized in that, The gas supply assembly (4) includes: A gas connection connector (401) is provided on the gas distribution ring (1); A gas flow regulating valve (403) is installed on the gas inlet end of the gas connection connector (401); A gas control valve (402) is installed on the inlet end of the gas flow regulating valve (403).

8. A gas distribution device with a gas microbubble generator according to claim 1, characterized in that, The stirrer (5) includes: The agitator (501) has its shaft connected to the power source.

Images