Temperature control system and oxygen pressure leaching device

Abstract

The utility model provides a temperature control system and an oxygen pressure leaching device, and relates to the field of hydrometallurgy. The temperature control system comprises a heat exchange piece, a first pipeline assembly and a second pipeline assembly. The heat exchange piece is arranged in the reaction kettle, the heat exchange piece is provided with a heat exchange cavity, and the first pipeline assembly and the second pipeline assembly are both communicated with the heat exchange cavity; the first pipeline assembly comprises a first pipeline and a second pipeline which are connected in parallel, the first pipeline is used for bearing a cooling medium, and the second pipeline is used for bearing a heating medium; the first pipeline, the heat exchange chamber and the second pipeline assembly form a first flowing path; the second pipeline, the heat exchange cavity and the second pipeline assembly form a second flowing path. The temperature control system provided by the utility model solves the technical problems of high cost and high manufacturing difficulty of a reaction kettle temperature control method in the prior art.

Description

Technical Field

[0001] This application relates to the field of hydrometallurgy, and more specifically, to a temperature control system and an oxygen pressure leaching apparatus. Background Technology

[0002] In the oxygen pressure leaching process, preheating and heating of the liquid are required in the initial stage of the reaction, while during continuous operation, excess heat of reaction needs to be removed to ensure the reaction reaches the appropriate temperature. See also Figure 1 In existing technologies, the temperature of the reactor 3 is controlled by installing a steam heating pipe 1 and a cooling circulating water pipe 2 on the reactor 3. Specifically, a jacket 4 is provided on the outside of the reactor 3, and the cooling circulating water pipe 2 is installed inside the jacket 4, surrounding the outside of the reactor 3. One end of the steam heating pipe 1 is used to connect to the steam pipeline network, and the other end passes through the top wall, middle and bottom walls of the reactor 3 in sequence before connecting to the cooling circulating water pipe 2. This temperature control method requires the installation of a jacket, which results in high cost and manufacturing difficulty. Utility Model Content

[0003] The purpose of this application is to provide a temperature control system and an oxygen pressure leaching device to alleviate the technical problems of high cost and difficult manufacturing of existing reactor temperature control methods.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0005] In a first aspect, the temperature control system provided by this utility model includes a heat exchanger, a first pipeline assembly, and a second pipeline assembly;

[0006] The heat exchanger is configured to be placed inside the reactor, and the heat exchanger is provided with a heat exchange chamber. The first pipeline assembly and the second pipeline assembly are both connected to the heat exchange chamber.

[0007] The first piping assembly includes a first pipe and a second pipe connected in parallel, wherein the first pipe is used to carry a cooling medium and the second pipe is used to carry a heating medium;

[0008] The first pipeline, the heat exchange chamber, and the second pipeline assembly form a first flow path; the second pipeline, the heat exchange chamber, and the second pipeline assembly form a second flow path.

[0009] Furthermore, the fluid flow direction in the first flow path is opposite to the fluid flow direction in the second flow path;

[0010] And / or, one of the first flow path and the second flow path is connected.

[0011] Furthermore, the second piping assembly includes a third piping and a fourth piping, the third piping and the fourth piping being connected in parallel and both communicating with the heat exchange chamber;

[0012] The first pipeline, the heat exchanger, and the fourth pipeline form a first flow path; the second pipeline, the heat exchanger, and the third pipeline form a second flow path.

[0013] Furthermore, a first control valve is installed on the first pipeline, which controls the opening and closing of the first flow path, and / or;

[0014] A third control valve is installed on the third pipeline, and the third control valve controls the opening and closing of the second flow path.

[0015] Furthermore, a second control valve is installed on the second pipeline, and / or a fourth control valve is installed on the fourth pipeline.

[0016] Furthermore, a drain valve is installed at the end of the second pipeline.

[0017] Furthermore, the temperature control system includes a temperature detection mechanism, which is signal-connected to the first control valve and the third control valve.

[0018] Furthermore, the heat exchanger includes a reinforcing section and two connecting sections, the two connecting sections being connected to both ends of the reinforcing section respectively;

[0019] One of the connecting segments is connected to a first piping assembly, and the other connecting segment is connected to a second piping assembly.

[0020] Furthermore, the reinforcing section and the connecting section are detachably connected;

[0021] And / or, the reinforcing section is configured to be located inside the reactor, and the connecting section is configured to be located outside the reactor.

[0022] Secondly, the oxygen pressure leaching device provided by this utility model includes a reaction vessel and a temperature control system as described in any of the above.

[0023] The reactor has a partition plate inside, and the heat exchanger is installed on the partition plate.

[0024] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows:

[0025] The temperature control system provided by this utility model includes a heat exchanger, a first pipeline assembly, and a second pipeline assembly. The heat exchanger is configured to be placed inside a reaction vessel and has a heat exchange chamber. Both the first pipeline assembly and the second pipeline assembly are connected to the heat exchange chamber. The first pipeline assembly includes a first pipeline and a second pipeline connected in parallel. The first pipeline is used to carry a cooling medium, and the second pipeline is used to carry a heating medium. The first pipeline, the heat exchange chamber, and the second pipeline assembly form a first flow path. The second pipeline, the heat exchange chamber, and the second pipeline assembly form a second flow path.

[0026] The first pipe is used to carry the cooling medium, and the first pipe, the heat exchange chamber and the second pipe assembly form a first flow path, so that the cooling medium can flow through the heat exchange chamber; the second pipe is used to carry the heating medium, and the second pipe, the heat exchange chamber and the second pipe assembly form a second flow path, so that the heating medium can flow through the heat exchange chamber.

[0027] The heat exchanger is placed inside the reactor and has a heat exchange chamber. When a cooling medium or a heating medium flows through the heat exchange chamber, the cooling medium or heating medium in the heat exchange chamber exchanges heat with the substance in the reactor, thereby cooling or heating the substance in the reactor.

[0028] This temperature control system uses a heat exchanger to cool or heat the substances inside the reactor. Since the same heat exchanger is used for both heating and cooling, it saves materials and reduces costs. Furthermore, the structure is simple, requiring no jacket and is easy to manufacture. In addition, the heat exchange efficiency is improved because the heat exchanger is placed inside the reactor. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a reaction vessel in the prior art;

[0031] Figure 2 This is a schematic diagram of the temperature heat exchange system provided in an embodiment of this application.

[0032] icon:

[0033] 1-Steam heating pipe; 2-Cooling circulating water pipe; 3-Reaction vessel; 4-Jacket;

[0034] 100 - Heat exchanger; 110 - Reinforcing section; 120 - Connecting section;

[0035] 200 - First piping assembly; 210 - First piping; 211 - First control valve; 220 - Second piping; 221 - Second control valve;

[0036] 300 - Second piping assembly; 310 - Third piping; 311 - Third control valve; 320 - Fourth piping; 321 - Fourth control valve;

[0037] 400 - Temperature detection agency. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] In the description of this application, it should be noted that the terms "inner" and "outer," etc., 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 product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 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 this application based on the specific circumstances.

[0041] Example 1

[0042] See Figure 1 In existing technology, the temperature of the reactor 3 is controlled by installing a steam heating pipe 1 and a cooling circulating water pipe 2 on the reactor 3. Specifically, a jacket 4 is provided on the outside of the reactor 3, and the cooling circulating water pipe 2 is installed inside the jacket 4, surrounding the outside of the reactor 3. One end of the steam heating pipe 1 is used to connect to the steam pipeline network, and the other end passes through the top wall, middle and bottom wall of the reactor 3 in sequence before connecting to the cooling circulating water pipe 2. This temperature control method has the problems of high cost and high manufacturing difficulty.

[0043] In view of this, see Figure 2 The temperature control system provided in this embodiment of the present invention includes a heat exchanger 100, a first pipeline assembly 200, and a second pipeline assembly 300. The heat exchanger 100 is configured to be placed inside a reaction vessel 3, and the heat exchanger 100 is provided with a heat exchange chamber. The first pipeline assembly 200 and the second pipeline assembly 300 are both connected to the heat exchange chamber. The first pipeline assembly 200 includes a first pipeline 210 and a second pipeline 220 connected in parallel. The first pipeline 210 is used to carry a cooling medium, and the second pipeline 220 is used to carry a heating medium. The first pipeline 210, the heat exchange chamber, and the second pipeline assembly 300 form a first flow path. The second pipeline 220, the heat exchange chamber, and the second pipeline assembly 300 form a second flow path.

[0044] Specifically, the cooling medium can be water or other coolant, and the heating medium can be steam or other medium that can provide heating effect; there are no restrictions on this.

[0045] The first pipe 210 is used to carry the cooling medium, and the first pipe 210, the heat exchange chamber and the second pipe assembly 300 form a first flow path, so that the cooling medium can flow through the heat exchange chamber; the second pipe 220 is used to carry the heating medium, and the second pipe 220, the heat exchange chamber and the second pipe assembly 300 form a second flow path, so that the heating medium can flow through the heat exchange chamber.

[0046] The heat exchanger 100 is placed inside the reactor 3 and is provided with a heat exchange chamber. When a cooling medium or a heating medium flows through the heat exchange chamber, the cooling medium or heating medium in the heat exchange chamber exchanges heat with the substance in the reactor 3, thereby cooling or heating the substance in the reactor 3.

[0047] The temperature control system uses the heat exchanger 100 to cool or heat the reactor 3. That is, heating and cooling use the same heat exchanger 100, which can save materials and reduce costs. In addition, the structure is simple, and there is no need to set up the jacket 4, which makes it easy to manufacture. Furthermore, the heat exchanger 100 is placed inside the reactor 3, thereby improving the heat exchange efficiency.

[0048] The structure of the temperature control system is described in detail below:

[0049] In the optional scheme provided by the embodiments of this utility model, the first flow path and the second flow path are connected.

[0050] Specifically, "selectively connecting the first flow path and the second flow path" means that when the first flow path is connected, the second flow path is not connected; when the second flow path is connected, the first flow path is not connected. Of course, selecting independently connecting the first flow path and the second flow path is the preferred solution, and a solution where both the first flow path and the second flow path are connected should also be within the protection scope of this utility model embodiment.

[0051] The first flow path and the second flow path can be connected to each other, so that the cooling medium or the heating medium flows through the heat exchange chamber, avoiding the mixing of the cooling medium and the heating medium due to the connection of the cooling medium and the heating medium, which would not achieve the cooling or heating effect.

[0052] In an optional embodiment of this utility model, the fluid flow direction in the first flow path is opposite to the fluid flow direction in the second flow path.

[0053] Specifically, to better understand the fluid flow, an example is given: The first flow path is currently open, with the cooling medium flowing in the first direction, while the second flow path is closed. When it's necessary to switch the second flow path to be open, the second flow path is opened and the first flow path is closed. At this time, residual cooling medium remains in the heat exchange chamber flowing in the first direction, while the heating medium in the second flow path flows in the second direction. The heating medium can mix with the cooling medium in the heat exchange chamber, causing the cooling medium to heat up rapidly, thus quickly reducing the amount of cooling medium in the heat exchange chamber. This allows the heat exchange chamber to switch to heating the reactor 3, improving the switching efficiency of the temperature control system between cooling and heating states. Of course, when the second flow path switches to the first flow path, the cooling and heating media also mix in the heat exchange chamber, causing the heating medium to cool down rapidly, thus switching the heat exchange chamber to cooling the reactor 3. Specific flow details will not be elaborated here.

[0054] The fluid flow direction in the first flow path is opposite to that in the second flow path, which can improve heat exchange efficiency and enhance temperature control.

[0055] In an optional embodiment of this utility model, the second pipeline assembly 300 includes a third pipeline 310 and a fourth pipeline 320, which are connected in parallel and are both connected to the heat exchange chamber; the first pipeline 210, the heat exchanger 100, and the fourth pipeline 320 form a first flow path; the second pipeline 220, the heat exchanger 100, and the third pipeline 310 form a second flow path.

[0056] Specifically, the first pipe 210 and the second pipe 220 are connected in parallel and are both connected to one end of the heat exchanger 100; more specifically, the first pipe 210, the second pipe 220 and the heat exchanger 100 can be connected by a tee fitting. The third pipe 310 and the fourth pipe 320 are connected in parallel and are both connected to the other end of the heat exchanger 100; more specifically, the third pipe 310, the fourth pipe 320 and the heat exchanger 100 can be connected by a tee fitting.

[0057] The first pipe 210, the heat exchanger 100, and the fourth pipe 320 form a first flow path, wherein the first pipe 210 is used to input the cooling medium and the fourth pipe 320 is used to output the cooling medium; the second pipe 220, the heat exchanger 100, and the third pipe 310 form a second flow path, wherein the third pipe 310 is used to input the heating medium and the second pipe 220 is used to output the heating medium; thus, the fluid flow direction of the first flow path is opposite to that of the fluid flow direction of the second flow path.

[0058] In an optional embodiment of this utility model, a first control valve 211 is installed on the first pipeline 210, and the first control valve 211 controls the opening and closing of the first flow path, and / or; a third control valve 311 is installed on the third pipeline 310, and the third control valve 311 controls the opening and closing of the second flow path.

[0059] Specifically, in this embodiment, a first control valve 211 is installed on the first pipeline 210. When the first control valve 211 is open, the first flow path is connected; when the first control valve 211 is closed, the first flow path is disconnected. Furthermore, a third control valve 311 is installed on the third pipeline 310. When the third control valve 311 is open, the second flow path is connected; when the second control valve 211 is closed, the second flow path is disconnected. The first control valve 211 and the third control valve 311 can be manually operated to open and close; alternatively, the first control valve 211 and the third control valve 311 can be linked by a computer to control one of them to open and the other to close, thereby achieving automated temperature control.

[0060] The first control valve 211 controls the opening and closing of the first pipeline 210, thereby controlling whether cooling medium is input into the heat exchange chamber, and thus controlling the opening and closing of the first flow path. Similarly, the third control valve 311 controls the opening and closing of the third pipeline 310, thereby controlling whether heating medium is input into the heat exchange chamber, and thus controlling the opening and closing of the second flow path.

[0061] In an optional embodiment of this utility model, a second control valve 221 is installed on the second pipeline 220, and / or a fourth control valve 321 is installed on the fourth pipeline 320.

[0062] Specifically, the second control valve 221 and the third control valve 311 are linked, opening and closing simultaneously; the first control valve 211 and the fourth control valve 321 are linked, opening and closing simultaneously.

[0063] The second control valve 221 controls the opening and closing of the second pipeline 220, thereby controlling whether heating medium is output from the heat exchange chamber, and further controlling the opening and closing of the second flow path. Similarly, the fourth control valve 321 controls the opening and closing of the fourth pipeline 320, thereby controlling whether cooling medium is output from the heat exchange chamber, and further controlling the opening and closing of the first flow path.

[0064] In an optional embodiment of this utility model, a drain valve is installed at the end of the second pipeline 220.

[0065] Specifically, in this embodiment, the heating medium is set as steam, and a steam trap is installed at the end of the second pipeline 220 so that the steam condensate can be connected to other downstream devices for secondary use, which is more energy-efficient and environmentally friendly, and avoids heat loss.

[0066] Steam traps are used to recover condensate, improving environmental friendliness.

[0067] In an optional embodiment of this utility model, the temperature control system includes a temperature detection mechanism 400, which is signal-connected to the first control valve 211 and the third control valve 311.

[0068] Specifically, the temperature detection mechanism 400 includes a temperature sensor, which is installed on the outer wall of the reactor 3 and is signal-connected to the first control valve 211 and the third control valve 311 via a computer. Of course, the temperature sensor may also be installed in other locations on the reactor 3 depending on the actual situation, which should also be within the protection scope of this utility model embodiment. Furthermore, the specific installation method of the temperature sensor, such as snap-fit, can be set according to the actual situation and is not limited here. The first control valve 211 and the third control valve 311 control the connection of the first flow path or the second flow path according to the temperature of the reactor 3 detected by the temperature sensor.

[0069] The temperature detection mechanism 400 is connected to the first control valve 211 and the third control valve 311 to achieve automatic, precise and stable control of the temperature of the reactor 3.

[0070] In an optional embodiment of this utility model, the heat exchanger 100 includes a reinforcing section 110 and two connecting sections 120, which are respectively connected to both ends of the reinforcing section 110; one connecting section 120 is connected to the first pipeline assembly 200, and the other connecting section 120 is connected to the second pipeline assembly 300.

[0071] Specifically, the reinforcing section 110 and the connecting section 120 are made of different materials. The reinforcing section 110 is made of titanium, while the connecting section 120 is made of stainless steel. The reinforcing section 110 has high strength and is suitable for harsh working conditions.

[0072] By combining the reinforcing section 110 with the connecting section 120, the heat exchanger 100 can be used under a variety of harsh operating conditions, thus increasing the applicability of the temperature control system.

[0073] In an optional embodiment of this utility model, the reinforcing section 110 is configured to be located inside the reactor 3, and the connecting section 120 is configured to be located outside the reactor 3.

[0074] The reinforcing section is located inside the reactor 3 to adapt to the harsh working conditions inside the reactor 3, while the connecting section 120 is located outside the reactor 3 to achieve connection with other parts and reduce costs.

[0075] In an optional embodiment of this utility model, the reinforcing section 110 and the connecting section 120 are detachably connected.

[0076] Specifically, in this embodiment, the reinforcing section 110 and the connecting section 120 are connected by a flange, and the flange is located outside the reactor 3.

[0077] The reinforcing section 110 and the connecting section 120 are detachably connected, making it convenient to install and remove both.

[0078] The following is a detailed explanation of the operating procedure of the temperature control system:

[0079] When heating is required in reactor 3, the heating medium heats the liquid in reactor 3 through the heat exchange chamber, maintaining the temperature in reactor 3 at 150-200℃. This allows metallic nickel to leach into the liquid, while most impurities such as iron and magnesium are leached into the slag. During shutdown, the cooling medium cools the liquid in reactor 3 through the heat exchange chamber. If the heat of reaction is high during the reaction, excess heat can also be removed by introducing a cooling medium to precisely control the temperature.

[0080] Example 2

[0081] The oxygen pressure leaching device provided in this embodiment includes the temperature control system described in Embodiment 1, and therefore also possesses all the beneficial effects of Embodiment 1, which will not be repeated here.

[0082] In an optional embodiment of this utility model, the oxygen pressure leaching device includes a reaction vessel 3; the reaction vessel 3 has a partition plate, and the heat exchanger 100 is installed on the partition plate.

[0083] Specifically, the heat exchanger 100 is configured as a coil, which is wound around the partition plate in a ring-shaped loop. The heat exchanger 100 is installed on the partition plate, thus ensuring that the heat exchanger 100 is stably installed inside the reactor 3.

[0084] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0085] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A temperature control system, characterized in that, include: Heat exchanger (100), first piping assembly (200), and second piping assembly (300); The heat exchanger (100) is configured to be placed inside the reactor (3). The heat exchanger (100) is provided with a heat exchange chamber. The first pipeline assembly (200) and the second pipeline assembly (300) are both connected to the heat exchange chamber. The first piping assembly (200) includes a first pipe (210) and a second pipe (220) connected in parallel. The first pipe (210) is used to carry the cooling medium, and the second pipe (220) is used to carry the heating medium. The first pipeline (210), the heat exchange chamber, and the second pipeline assembly (300) form a first flow path; the second pipeline (220), the heat exchange chamber, and the second pipeline assembly (300) form a second flow path.

2. The temperature control system according to claim 1, characterized in that, The fluid flow direction in the first flow path is opposite to the fluid flow direction in the second flow path; And / or, one of the first flow path and the second flow path is connected.

3. The temperature control system according to claim 1, characterized in that, The second piping assembly (300) includes a third piping (310) and a fourth piping (320), wherein the third piping (310) and the fourth piping (320) are connected in parallel and are both connected to the heat exchange chamber; The first pipeline (210), the heat exchanger (100), and the fourth pipeline (320) form a first flow path; the second pipeline (220), the heat exchanger (100), and the third pipeline (310) form a second flow path.

4. The temperature control system according to claim 3, characterized in that, A first control valve (211) is installed on the first pipeline (210), and the first control valve (211) controls the opening and closing of the first flow path, and / or; A third control valve (311) is installed on the third pipeline (310), and the third control valve (311) controls the opening and closing of the second flow path.

5. The temperature control system according to claim 4, characterized in that, A second control valve (221) is installed on the second pipeline (220), and / or a fourth control valve (321) is installed on the fourth pipeline (320).

6. The temperature control system according to claim 3, characterized in that, A drain valve is installed at the end of the second pipeline (220).

7. The temperature control system according to claim 4, characterized in that, The temperature control system includes a temperature detection mechanism (400), which is signal-connected to the first control valve (211) and the third control valve (311).

8. The temperature control system according to any one of claims 1-7, characterized in that, The heat exchanger (100) includes a reinforcing section (110) and two connecting sections (120), the two connecting sections (120) being connected to both ends of the reinforcing section (110); One of the connecting segments (120) is connected to the first conduit assembly (200), and the other connecting segment (120) is connected to the second conduit assembly (300).

9. The temperature control system according to claim 8, characterized in that, The reinforcing section (110) and the connecting section (120) are detachably connected; And / or, the reinforcing section (110) is configured to be located inside the reactor (3), and the connecting section (120) is configured to be located outside the reactor (3).

10. An oxygen pressure leaching apparatus, characterized in that, Includes a reaction vessel (3) and a temperature control system as described in any one of claims 1-9; The reactor (3) has a partition plate inside, and the heat exchanger (100) is installed on the partition plate.

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