Pressure-bearing cyanidation leaching horizontal reactor

Abstract

The utility model provides a pressure-bearing cyanidation leaching horizontal reactor, and belongs to the field of gold mine cyanide residue recovery treatment. A shell of the pressure-bearing cyanidation leaching horizontal reactor is divided into a plurality of cavities; according to the multi-chamber cyanidation leaching device, the chambers are arranged, and the communicating components used for connecting every two adjacent chambers, the aeration devices connected with the communicating components, the overflow pipes, the turbulent flow plates and the stirring systems are arranged among the chambers, so that the cyanidation leaching process can be carried out in multiple chambers in a grading manner, and unutilized gas in the previous chamber can be collected and then fed into the next chamber, so that the cyanidation leaching efficiency is improved. Aeration is performed again, so that the utilization rate of air can be greatly improved; according to the integrated design principle, in the cyanide residue recycling cyanidation leaching process section, the pressure-bearing horizontal reactor is adopted to replace a traditional multi-stage leaching stirring tank, equipment is highly integrated in the horizontal reactor, the number of the equipment is effectively reduced, the occupied area is reduced, and the cyanidation leaching efficiency is improved to a certain degree.

Description

Technical Field

[0001] This application relates to the field of gold mine cyanide slag recycling and treatment technology, specifically to a pressurized cyanide leaching horizontal reactor. Background Technology

[0002] Cyanide slag in the gold industry is a large-scale industrial solid waste, and there is an urgent need to carry out technical research on cyanide slag recycling. However, since cyanide slag contains not only toxic components such as cyanide and heavy metals, but also precious metals such as gold and silver, it is necessary to recover precious metals during the cyanide slag recycling process. Cyanide leaching is a commonly used method, and the mainstream equipment currently used is a cyanide leaching tank under normal pressure conditions. However, the disadvantages are that there are many tanks, a large area, low gas utilization rate, low leaching efficiency, and the equipment cannot be integrated.

[0003] In view of this, it is necessary to design a pressurized cyanide leaching horizontal reactor to solve the above problems. Utility Model Content

[0004] In view of the technical problems existing in the background art, this application provides a pressurized cyanide leaching horizontal reactor. The pressurized cyanide leaching horizontal reactor divides the shell into several chambers and provides a connecting member between each chamber for connecting two adjacent chambers and an aeration device connected to the connecting member. This not only allows the cyanide leaching process to be carried out in stages in multiple chambers, but also allows the unused gas in the previous chamber to be collected and sent to the next chamber for re-aeration, which can greatly improve the air utilization rate.

[0005] This application provides a pressurized cyanide leaching horizontal reactor, comprising: a shell divided into several chambers by several partitions, a connecting member for connecting adjacent chambers, an overflow pipe disposed on the partitions, and an aeration device disposed at the bottom of the chambers; the connecting member is disposed at the top of the shell;

[0006] The connecting component includes a communicating vessel whose inlet is connected to the (N-1)th chamber and whose outlet is connected to the Nth chamber, and an air collecting component connected to the outlet of the communicating vessel; the outlet of the air collecting component is connected to the aeration device.

[0007] In the technical solution of this application embodiment, the shell is divided into several chambers, and a connecting member is provided between each chamber. At the same time, an aeration device is provided at the bottom of the chamber, and an overflow pipe is provided on the partition plate used to divide the shell into several chambers. This allows the cyanide leaching process to be carried out in stages in multiple chambers, which helps to improve the leaching efficiency. The aeration device at the bottom of the chamber effectively distributes the gas evenly into the liquid, optimizes the gas-liquid contact, improves the oxygen transfer efficiency, and thus enhances the leaching effect. Meanwhile, by connecting the connecting member to the aeration device, the unused gas in the previous chamber can be collected and sent to the next chamber for re-aeration, which further effectively improves the air utilization rate.

[0008] In some embodiments, the air collecting component includes an air collecting cylinder connected to the outlet of the communicating vessel and a communicating pipe connected to the outlet of the air collecting cylinder, the outlet of the communicating pipe being connected to the aeration device.

[0009] In some embodiments, the pressurized cyanide leaching horizontal reactor further includes a plurality of turbulence plates disposed on the inner wall of the chamber.

[0010] In this embodiment, by setting several turbulence plates on the inner wall of the chamber, turbulence can be generated in the liquid within the chamber, increasing the internal turbulence of the liquid, thereby enhancing the contact between solid particles and the liquid and improving the leaching efficiency. In addition, due to the effect of turbulence, the deposition of solid particles in the chamber is effectively suppressed, which can reduce the blockage and cleaning work caused by deposition, and can also make the reactants more evenly distributed in the chamber, reducing the phenomenon of local over-concentration or over-dilute, and improving the uniformity of the reaction. Furthermore, the turbulence plates can promote the dispersion of gas in the liquid and improve the oxygen mass transfer efficiency, which is particularly important for the cyanide leaching process.

[0011] In some embodiments, the plurality of turbulence plates include turbulence plate one, turbulence plate two, turbulence plate three opposite to turbulence plate one, and turbulence plate four opposite to turbulence plate two; turbulence plate one, turbulence plate two, turbulence plate three, and turbulence plate four are evenly distributed around the inner wall of the chamber.

[0012] In some embodiments, the overflow pipe is located above the turbulence plate, and the liquid in the (N-1)th chamber flows through the overflow pipe to the Nth chamber.

[0013] In some embodiments, the housing is provided with a plurality of manholes; the housing is provided with a maintenance door that cooperates with the manholes.

[0014] In this embodiment, by providing maintenance manholes on each chamber, personnel can easily enter the pressurized cyanide leaching horizontal reactor for maintenance.

[0015] In some embodiments, the plurality of chambers include a first chamber, a second chamber, ..., an Nth chamber, according to the direction of liquid flow; and / or,

[0016] The chamber is provided with a maintenance manhole; and / or,

[0017] The number of chambers is consistent with the number of manholes; and / or,

[0018] The turbulence plate is installed on the inspection door.

[0019] In some embodiments, the pressurized cyanide leaching horizontal reactor further includes a stirring system disposed in the chamber.

[0020] In some embodiments, the stirring system includes a speed reducer base connected to the top of the housing, a speed reducer disposed on the speed reducer base, a stirring shaft connected to the speed reducer via a coupling, and stirring blades connected to the stirring shaft; the stirring blades are located in the chamber of the housing and are located above the aeration device.

[0021] In this embodiment, the introduction of a stirring system can effectively stir the liquid in the chamber, making the contact between solid particles and liquid more thorough, thereby improving leaching efficiency; it can also prevent solid particles from settling at the bottom or around the chamber, keeping them in suspension, which is beneficial for the leaching reaction; it can also promote the circulation of fluid in the chamber, reduce local concentration differences, and ensure the uniformity of reaction conditions throughout the chamber; and by placing the stirring blades above the aeration device, the gas released from the aeration device can be further dispersed and evenly distributed into the liquid by the stirring blades, improving gas utilization and mass transfer efficiency.

[0022] In some embodiments, the pressurized cyanide leaching horizontal reactor further includes: an inlet and a dosing port located in the first chamber region, and an outlet and an exhaust port located in the Nth chamber region.

[0023] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the pressurized cyanide leaching horizontal reactor in the embodiments of this application;

[0026] Figure 2 This is an enlarged schematic diagram of the stirring blades in the pressurized cyanide leaching horizontal reactor in the embodiments of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Shell; 11. Partition; 12. Chamber; 13. Manhole; 21. Communicating Vessel; 221. Air Collecting Cylinder; 222. Connecting Pipe; 3. Overflow Pipe; 4. Aeration Device; 41. Air Pipe; 5. Turbulence Plate; 61. Reducer Base; 62. Reducer; 63. Agitator Blade; 64. Agitator Shaft; 71. Liquid Inlet; 72. Chemical Dosing Port; 73. Liquid Outlet; 74. Exhaust Port; 75. Sewage Outlet; 76. Saddle. Detailed Implementation

[0029] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0034] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0035] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 the embodiments of this application and simplifying the description, and are not intended to 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 the embodiments of this application.

[0036] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0037] Current mainstream equipment for cyanide residue recovery has a large footprint, low gas utilization rate, low leaching efficiency, and cannot be integrated. Therefore, it is particularly important to rationally design equipment for efficient and safe recovery of cyanide residue resources.

[0038] To address the aforementioned technical problems, this application provides a pressurized cyanide leaching horizontal reactor. By dividing the shell 1 into several chambers 12, and providing a connecting member between each chamber 12 to connect adjacent chambers 12, an aeration device 4 connected to the connecting member, an overflow pipe 3, a turbulence plate 5, and a stirring system, the cyanide leaching process can be carried out in stages within multiple chambers 12. Furthermore, unused gas from the previous chamber 12 can be collected and sent to the next chamber 12 for re-aeration, significantly improving air utilization. This not only saves on the equipment's floor space but also improves gas utilization and leaching efficiency.

[0039] For ease of explanation, the following embodiments use a pressurized cyanide leaching horizontal reactor according to an embodiment of this application as an example.

[0040] Please refer to Figures 1-2 A pressurized cyanide leaching horizontal reactor includes: a shell 1 divided into several chambers 12 by several partitions 11; a connecting member for connecting adjacent chambers 12; an overflow pipe 3 disposed on the partitions 11; an aeration device 4 disposed at the bottom of the chambers 12; several turbulence plates 5 welded to the inner wall of the chambers 12; and a stirring system disposed in the chambers 12.

[0041] According to the direction of liquid flow, the plurality of chambers 12 include a first chamber, a second chamber...a fourth chamber;

[0042] The connecting member is disposed on the top of the housing 1; the connecting member includes a communicating vessel 21 whose inlet is connected to the (N-1)th chamber and whose outlet is connected to the Nth chamber, and an air collecting member connected to the outlet of the communicating vessel 21; the air collecting member includes an air collecting cylinder 221 connected to the outlet of the communicating vessel 21, and a communicating pipe 222 connected to the outlet of the air collecting cylinder 221, the outlet of the communicating pipe 222 being connected to the aeration device 4;

[0043] The overflow pipe 3 is located above the turbulence plate 5, and the liquid in the (N-1)th chamber flows to the Nth chamber through the overflow pipe 3;

[0044] The aeration device 4 includes a base disposed at the bottom of the housing 1 and located in the inner cavity of the housing 1, and an aerator disposed on the base. The base is welded to the bottom of the housing 1. The aerator of the aeration device 4 located in the first chamber is also connected to an air pipe 41, and the other end of the air pipe 41 is connected to the outside.

[0045] The stirring system includes a reducer base 61 connected to the top of the housing 1, a reducer 62 mounted on the reducer base 61, a stirring shaft 64 connected to the reducer 62 via a coupling, and a stirring blade 63 connected to the stirring shaft 64; the stirring blade 63 is located in the chamber 12 of the housing 1 and is located above the aeration device 4; the reducer base 61 is fixed to the housing 1 via a flange.

[0046] The first chamber region of the shell 1 is provided with a liquid inlet 71 and a chemical dosing port 72, and the fourth chamber region of the shell 1 is provided with a liquid outlet 73 and a vent 74; the bottom of the shell 1 is evenly distributed with a number of sewage outlets 75 and a number of saddles 76 for supporting the multidimensional high-efficiency horizontal reactor.

[0047] The materials used for the components in the pressurized cyanide leaching horizontal reactor include ordinary carbon steel, such as Q235B.

[0048] This allows the cyanide leaching process to be carried out in stages within multiple chambers 12. An aeration device 4 is installed at the bottom of the chamber 12 to effectively distribute the gas evenly into the liquid, optimize gas-liquid contact, and improve oxygen transfer efficiency, thereby enhancing the leaching effect. At the same time, connecting the connecting component to the aeration device 4 allows the unused gas from the previous chamber 12 to be collected and sent to the next chamber 12 for re-aeration, further improving the air utilization rate. This integrated design principle, using a pressurized horizontal reactor instead of a traditional multi-stage leaching stirred tank in the cyanide leaching process section for cyanide residue recycling, effectively reduces the number of devices and the floor space required, and improves the cyanide leaching efficiency to a certain extent.

[0049] Further, in this embodiment, the plurality of turbulence plates 5 include turbulence plate one, turbulence plate two, turbulence plate three opposite to turbulence plate one, and turbulence plate four opposite to turbulence plate two; turbulence plate one, turbulence plate two, turbulence plate three, and turbulence plate four are evenly distributed around the inner wall of the chamber 12 (in Figure 1 The turbulence plate is located in a place not visible from the chamber (indicated by dashed lines).

[0050] Furthermore, in this embodiment of the application, the housing 1 is provided with a plurality of maintenance manholes 13; the housing 1 is provided with a maintenance door that cooperates with the maintenance manholes 13; the maintenance door and the maintenance manholes 13 are connected by hinges;

[0051] Each of the chambers 12 is provided with a maintenance manhole 13; the number of chambers 12 is the same as the number of maintenance manholes 13; the turbulence plate is provided on the maintenance door.

[0052] The working principle of a pressurized cyanide leaching horizontal reactor provided in this application is explained below: Figures 1-2 As shown,

[0053] First, check and ensure that the inside of the reactor is clean and free of debris;

[0054] Secondly, the slurry entering the cyanide leaching process section of the cyanide slag recovery treatment is transported to the inlet 71 on the shell 1 through the pipeline. At the same time, a certain concentration of sodium cyanide solution and lime solution are added through the dosing port 72. With the support of the aeration device 4 and the stirring system, the gas-liquid-solid three-phase reaction of cyanide leaching is realized. The pressure inside the shell 1 is monitored in real time by the pressure gauge installed on the shell 1 to maintain it within the optimal process parameter range.

[0055] Next, under certain pressure, aeration and stirring conditions, the cyanide leaching slurry liquid inside the shell 1 gradually increases. When it reaches a certain height, it overflows through the overflow pipe 3 to the next adjacent cavity, and finally overflows from the outlet 73 to the next process section.

[0056] Meanwhile, the air source enters the housing 1 through the aeration device 4 at the bottom of the first chamber of the housing 1. As the gas rises and passes through the liquid surface of the first chamber, the gas overflowing from the liquid passes through the connector 21 (used to connect the first chamber and the second chamber) and enters the gas collecting cylinder 221 (located in the second chamber). Then, it enters the aeration device 4 through the connecting pipe 222 connected to the gas collecting cylinder 221 and is aerated again. This cycle is repeated, which greatly improves the utilization rate of air.

[0057] Please refer to the following: Figures 1-2 According to one or more embodiments of this application, the pressurized cyanide leaching horizontal reactor provided by this application divides the shell 1 into several chambers 12, and provides a connecting member for connecting two adjacent chambers 12, an aeration device 4 connected to the connecting member, an overflow pipe 3, a turbulence plate 5, and a stirring system between each chamber 12. This not only allows the cyanide leaching process to be carried out in stages within multiple chambers 12, but also allows the unused gas from the previous chamber 12 to be collected and sent to the next chamber 12 for re-aeration, which can greatly improve the air utilization rate. This integrated design principle, in the cyanide leaching process section for cyanide residue recycling, uses a pressurized horizontal reactor to replace the traditional multi-stage leaching stirring tank. The equipment is highly integrated inside the horizontal reactor, which effectively reduces the number of equipment, reduces the floor space, and improves the cyanide leaching efficiency to a certain extent.

[0058] The entire device is easy to operate, runs stably, is safe and reliable, energy-saving and environmentally friendly, effectively reduces production costs, and has a good energy-saving effect.

[0059] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A pressurized cyanide leaching horizontal reactor, characterized in that, include: The shell is divided into several chambers by several partitions, a connecting member for connecting adjacent chambers, an overflow pipe disposed on the partitions, and an aeration device disposed at the bottom of the chambers; the connecting member is disposed at the top of the shell. The connecting component includes a communicating vessel whose inlet is connected to the (N-1)th chamber and whose outlet is connected to the Nth chamber, and an air collecting component connected to the outlet of the communicating vessel; the outlet of the air collecting component is connected to the aeration device.

2. The pressurized cyanide leaching horizontal reactor according to claim 1, characterized in that, The air collecting component includes an air collecting cylinder connected to the outlet of the communicating vessel and a communicating pipe connected to the outlet of the air collecting cylinder, the outlet of the communicating pipe being connected to the aeration device.

3. The pressurized cyanide leaching horizontal reactor according to claim 1, characterized in that, Also includes: Several turbulence plates are installed on the inner wall of the chamber.

4. The pressurized cyanide leaching horizontal reactor according to claim 3, characterized in that, The plurality of turbulence plates include turbulence plate one, turbulence plate two, turbulence plate three opposite to turbulence plate one, and turbulence plate four opposite to turbulence plate two; turbulence plate one, turbulence plate two, turbulence plate three, and turbulence plate four are evenly distributed around the inner wall of the chamber.

5. The pressurized cyanide leaching horizontal reactor according to claim 4, characterized in that, The overflow pipe is located above the turbulence plate, and the liquid in the (N-1)th chamber flows to the Nth chamber through the overflow pipe.

6. The pressurized cyanide leaching horizontal reactor according to claim 4, characterized in that, The housing is provided with a plurality of maintenance manholes; the housing is provided with maintenance doors that are used in conjunction with the maintenance manholes.

7. The pressurized cyanide leaching horizontal reactor according to claim 6, characterized in that, According to the direction of liquid flow, the plurality of chambers include a first chamber, a second chamber, ..., an Nth chamber; and / or, Each of the aforementioned chambers is provided with a maintenance manhole; and / or, The number of chambers is consistent with the number of manholes; and / or, The turbulence plate is installed on the inspection door.

8. The pressurized cyanide leaching horizontal reactor according to claim 1, characterized in that, Also includes: A stirring system is installed in the chamber.

9. The pressurized cyanide leaching horizontal reactor according to claim 8, characterized in that, The stirring system includes a speed reducer base connected to the top of the housing, a speed reducer mounted on the speed reducer base, a stirring shaft connected to the speed reducer via a coupling, and stirring blades connected to the stirring shaft; the stirring blades are located in the chamber of the housing and are positioned above the aeration device.

10. The pressurized cyanide leaching horizontal reactor according to claim 7, characterized in that, Also includes: The inlet and dosing port are located in the first chamber area, and the outlet and vent are located in the Nth chamber area.

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