Acid dissolution experiment device

Abstract

The utility model provides an acid dissolution experiment device, and relates to the technical field of experiment devices.The acid dissolution experiment device comprises at least two acid storage containers, a mixing container, at least two flow meters and at least two control valves, all the acid storage containers are arranged in parallel, the mixing container is provided with a mixing cavity, all the acid storage containers are communicated with the mixing cavity, and the flow meters are arranged in the mixing cavity; a flow meter is arranged on a communication path of each acid storage container and the mixing container, and a control valve is arranged on a communication path of each flow meter and the mixing container; according to the acid dissolution experiment device, the at least two acid storage containers and the flow meters and the control valves which are in one-to-one correspondence with the acid storage containers are arranged, so that the instantaneous flow rate and the total flow rate of the acid solution flowing into the mixing container from the acid storage containers can be controlled, and the technical problem of difficulty in simultaneously and quantitatively adding multiple acids in the acid dissolution experiment device is solved; the requirements of experiments on the acid solution are met, and the accuracy and reliability of experimental data are improved.

Description

Technical Field

[0001] This application relates to the field of experimental apparatus technology, and in particular to an acid dissolution experimental apparatus. Background Technology

[0002] In the process of analyzing the composition of marine sediments, acid dissolution experiments are used, which utilize multiple acids to react synergistically with marine sediments to extract chemical components such as metal elements and carbon elements, thereby analyzing the actual composition of marine sediments.

[0003] In related technologies, the acid solution addition function in acid dissolution experiments is limited to a single acid addition function. Therefore, if multiple types of acid solutions need to be added, operators need to repeatedly change the acid addition equipment, which is a complex operation process that consumes a lot of manpower and time. Moreover, errors are easily generated during the process of changing acid addition equipment, affecting the accuracy and reliability of experimental data. In addition, the control precision of acid amount during acid addition is low, and it is impossible to accurately add acid solution quantitatively, which affects the chemical balance in the reaction process between acid solution and marine sediments, resulting in deviations in acid dissolution experimental data and making it impossible to accurately analyze the actual composition of marine sediments.

[0004] Therefore, in related technologies, there is a technical problem that it is difficult to add multiple acid solutions quantitatively at the same time in acid dissolution experimental devices. Utility Model Content

[0005] In view of the above problems, this application provides an acid dissolution experimental apparatus, which aims to solve the technical problem of difficulty in simultaneously and quantitatively adding multiple acid solutions during the acid dissolution experiment, so as to meet the experimental requirements for acid solutions and thereby improve the accuracy and reliability of acid dissolution experimental data.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides an acid solubility test apparatus, including:

[0008] At least two acid storage containers, and at least two acid storage containers are arranged side by side;

[0009] A mixing container having a mixing chamber, wherein at least two of the acid storage containers are respectively connected to the mixing chamber, so that the acid solution in the acid storage containers is transported to the mixing chamber;

[0010] At least two flow meters are provided, one of which is installed on the communication path between each of the acid storage containers and the mixing container, and the flow meters are configured to measure the flow rate of the acid solution delivered from each of the acid storage containers to the mixing container;

[0011] At least two control valves are provided, one of which is installed on the communication path between each of the flow meters and the mixing container. The control valves are configured to adjust their opening degree according to the flow rate measured by the flow meter corresponding to the same acid storage container.

[0012] In some embodiments, the acid dissolution experimental apparatus further includes a controller, which is electrically connected to the flow meter and the control valve respectively, and the controller adjusts the opening degree of the control valve corresponding to the same acid storage container according to the flow rate measured by the flow meter.

[0013] In some embodiments, the control valve includes a flow regulating valve and a check valve, the flow regulating valve being disposed between the corresponding flow meter and the mixing container, and the check valve being disposed between the corresponding flow regulating valve and the mixing container.

[0014] In some embodiments, the top cross-sectional dimension of the mixing chamber is larger than the bottom cross-sectional dimension.

[0015] In some embodiments, the cross-sectional dimensions of the mixing chamber gradually decrease from top to bottom.

[0016] In some embodiments, a stirring element is provided in the mixing chamber to stir the mixed acid solution in the mixing chamber.

[0017] In some embodiments, the acid dissolution experimental apparatus further includes a drive mechanism connected to the stirring element to drive the stirring element to rotate relative to the mixing chamber.

[0018] In some embodiments, the acid dissolution experimental apparatus further includes a flow guiding stirrer and a reaction vessel, the reaction vessel and the mixing vessel being in communication, the flow guiding stirrer being disposed on the communication path between the mixing vessel and the reaction vessel, the flow guiding stirrer having a flow guiding section configured to guide the mixed acid solution in the mixing vessel to the reaction vessel.

[0019] In some embodiments, the flow guide agitator further includes a stirring section configured to agitate the mixed liquid flowing from the mixing vessel to the reaction vessel.

[0020] In some embodiments, the flow-guiding and stirring element is a spiral flow-guiding blade.

[0021] The acid dissolution test apparatus provided in this application includes at least two acid storage containers, a mixing container, at least two flow meters, and at least two control valves. The acid storage containers are arranged side-by-side, and the mixing container has a mixing chamber. Each acid storage container is connected to the mixing chamber so that the acid solutions in each acid storage container can flow into the mixing chamber of the mixing container. To accurately and quantitatively control the total flow rate of the acid solutions delivered to the mixing chamber to meet the requirements of the acid dissolution test, a flow meter and a control valve are respectively installed on the communication path between each acid storage container and the mixing container. The flow meter is located near the acid storage container, and the control valve is located near the mixing container. Each flow meter is used to measure the flow rate of the acid solutions delivered from the corresponding acid storage container to the mixing container. The instantaneous and total flow rates of each acid solution are monitored. Each control valve adjusts its opening based on the changes in the instantaneous and total flow rates measured by the corresponding flow meter for the same acid storage container. Therefore, along the same connection path, the control valve adjusts its opening accordingly based on the fluctuations in the instantaneous flow rate of the acid solution measured by the flow meter to keep the acid solution delivery stable. This avoids excessive fluctuations in the acid solution affecting the measurement accuracy of the flow meter and reduces frequent large-amplitude changes in the opening of the control valve, thereby improving the stability and accuracy of the entire acid dissolution experimental device system. In addition, when the total flow rate of each acid solution measured by each flow meter reaches the target value required for the acid dissolution experiment, the corresponding control valve stops operating, ensuring that each acid solution can be quantitatively delivered to the mixing chamber.

[0022] In addition, flow meters are installed upstream of the control valves in the connection paths from each acid storage container to the mixing container. On the one hand, this reduces the impact of changes in the control valve opening on the flow meter measurement, preventing fluctuations in the flow of acid solution in the connection path caused by rapid changes in the control valve opening, which could lead to flow meter measurement distortion. On the other hand, the flow meters can detect changes in the flow rate of acid solution in the connection path earlier, allowing the control valve to adjust its opening, shortening the response time, and making the delivery of acid solution more stable. This, in turn, allows for more precise control of the total flow rate of acid solution flowing from each acid storage container into the mixing container, in order to meet the acid solution requirements in acid dissolution experiments and improve the accuracy and reliability of experimental data.

[0023] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the battery pack disassembly and assembly equipment provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of an acid dissolution experimental apparatus provided in an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Acid dissolution experimental apparatus;

[0028] 100 - Acid storage container;

[0029] 200 - Mixing container; 210 - Mixing chamber;

[0030] 300-Flow Meter;

[0031] 400 - Control valve; 410 - Flow regulating valve; 420 - Check valve;

[0032] 500-Controller;

[0033] 600 - Reaction vessel. Detailed Implementation

[0034] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] In the process of analyzing the composition of marine sediments, acid dissolution experiments are often used. This involves using multiple acid solutions to react synergistically with marine sediments to extract chemical components, such as metal elements and carbon elements, thereby analyzing the actual composition of marine sediments.

[0036] Therefore, in order to meet the acid solution required for the reaction with marine sediments in acid dissolution experiments, this application provides an acid dissolution experimental apparatus.

[0037] In some embodiments, the acid dissolution experimental apparatus has a single acid addition function. Therefore, when multiple types of acid solutions need to be added to participate in the reaction, the operator needs to repeatedly change the acid addition equipment to meet the experimental requirements. However, the operation process is complex, consumes a lot of manpower and time, and errors are easily generated during the process of changing the acid addition equipment, affecting the accuracy and reliability of the experimental data. On the other hand, when using an acid dissolution experimental apparatus that can add multiple acid solutions, the control precision of the amount of each acid solution added is low, and it is impossible to accurately add each acid solution quantitatively. Deviations in the added acid solutions affect the chemical balance in the reaction process between the acid solution and the marine sediment, which also affects the accuracy and reliability of the experimental data, thus making it impossible to accurately analyze the actual composition of the marine sediment. Therefore, in general, there is a problem with the simultaneous quantitative addition of multiple acid solutions in the acid dissolution experimental apparatus.

[0038] To address the aforementioned issues, this application provides an acid dissolution experimental device that can simultaneously and accurately add multiple acid solutions in a quantitative manner to participate in the experiment. Of course, the acid dissolution experimental device in this application is not limited to providing data support for analyzing the composition of marine sediments; it can also provide data support for the metal and impurity components in metallic materials, the metal elements and chemical composition in ores, the heavy metal content in soil, and the composition and impurities of pharmaceuticals. In the embodiments of this application, taking marine sediments as an example, the acid dissolution experimental device controls the simultaneous and accurate quantitative addition of multiple acid solutions to react with the marine sediments, thereby improving the accuracy and reliability of the experimental data.

[0039] Among them, reference Figure 1As shown, the acid dissolution experimental apparatus 10 includes at least two acid storage containers 100, a mixing container 200, at least two flow meters 300, and at least two control valves 400. The at least two acid storage containers 100 are arranged side-by-side. The mixing container 200 has a mixing chamber 210. The at least two acid storage containers 100 are respectively connected to the mixing chamber 210 to allow the acid solution in the acid storage containers 100 to be transported to the mixing chamber 210. A flow meter 300 is installed on the communication path between each acid storage container 100 and the mixing container 200. The flow meter 300 is configured to measure the flow rate of the acid solution transported from each acid storage container 100 to the mixing container 200. A control valve 400 is installed on the communication path between each flow meter 300 and the mixing container 200 to control the flow rate of the acid solution. The valve is configured to adjust its opening based on the flow rate measured by the flow meter 300 corresponding to the same acid storage container 100. That is, flow meters 300 and control valves 400 are sequentially installed on the connection path from each acid storage container 100 to the mixing container 200. This allows the instantaneous flow rate and total flow rate of the acid solution transported from each acid storage container 100 to the mixing container 200 to be monitored and controlled separately. Therefore, multiple acid solutions in the acid dissolution experimental apparatus 10 can be added simultaneously and quantitatively to the mixing chamber 210 of the mixing container 200 to meet the acid solution requirements during the reaction of marine sediments with acid solutions in subsequent acid dissolution experiments. This improves the accuracy and reliability of the acid dissolution experimental data and provides data support for the accurate analysis of the composition of marine sediments.

[0040] Figure 1 This is a schematic diagram of the structure of the acid dissolution experimental apparatus 10 provided in the embodiments of this application, wherein, Figure 1 Taking the acid dissolution experimental apparatus 10, which includes three acid storage containers 100, a mixer, three flow meters 300, and three control valves 400, as an example, Figure 1 As shown, three acid storage containers 100 are arranged side by side, and a mixing container 200 has a mixing chamber 210. The three acid storage containers 100 are respectively connected to the mixing chamber 210 so that the acid solution in the acid storage containers 100 is transported to the mixing chamber 210, and a mixed acid solution is formed in the mixing chamber 210 to meet the requirements of the mixed acid solution in the reaction process between marine sediments and the mixed acid solution, thereby improving the accuracy and reliability of acid dissolution experimental data.

[0041] In some embodiments, the acid storage container 100 is made of materials including, but not limited to, polytetrafluoroethylene, polyethylene, polypropylene, polyvinyl chloride, glass, ceramics, etc. Each acid storage container 100 can store one acid solution or a mixed acid solution in a certain proportion. Graduation lines are set on the outer or inner wall of the acid storage container 100 so that when the operator adds the acid solution to each acid storage container 100 or when the acid solution in the acid storage container 100 is transported to the mixing container 200, the operator can accurately record the volume data of the acid solution in each acid storage container 100 by observing the changes in the corresponding graduation lines of the acid solution, providing basic data for subsequent experiments. Specifically, the smallest graduation on the acid storage container 100 is 0.5 ml, which improves the accuracy of data recording.

[0042] In some embodiments, the number of acid storage containers 100 can be set not only to two or three, but also, for example, four, five, six, seven, eight, etc., depending on the requirements for mixed acid solutions in acid dissolution experiments. Each acid storage container 100 is connected to a mixing container 200 so that the acid solution in the acid storage container 100 is transported to the mixing chamber 210 of the mixing container 200 to form different mixed acid solutions, thereby meeting the requirements of acid dissolution experiments and improving the accuracy and reliability of experimental data.

[0043] In addition, such as Figure 1 As shown, a flow meter 300 is installed on the connection path between each of the three acid storage containers 100 and the mixing container 200, and a control valve 400 is installed on the connection path between each flow meter 300 and the mixing container 200. That is, a flow meter 300 and a control valve 400 are sequentially installed on the connection path from each acid storage container 100 to the mixing container 200. The flow meter 300 is configured to measure the flow rate of the acid solution delivered from each acid storage container 100 to the mixing container 200, and the control valve is configured to adjust its opening according to the flow rate measured by the flow meter 300 corresponding to the same acid storage container 100. This allows the instantaneous flow rate and total flow rate of the acid solution flowing from each acid storage container 100 into the mixing container 200 to be monitored and controlled. This enables the control of the composition of different types of acid solutions or different types of mixed acid solutions required for acid dissolution experiments, thereby improving the accuracy and reliability of experimental data.

[0044] In some embodiments, the flow meter 300 includes, but is not limited to, electromagnetic flow meters, ultrasonic flow meters, differential pressure flow meters, turbine flow meters, volumetric flow meters, mass flow meters, etc. For example, the flow meter 300 adopts an electromagnetic flow meter, which is not affected by changes in the physical properties of the acid solution such as temperature, pressure, density, and viscosity. It has high measurement accuracy and fast response speed, thereby reducing response time and improving the overall control efficiency and accuracy of the acid solution by the acid dissolution experimental device 10.

[0045] In some embodiments, such as Figure 1 As shown, flow meters 300 and control valves 400 are sequentially installed along the connection path from each acid storage container 100 to the mixing container 200. Specifically, the flow meter 300 is positioned upstream of the control valve 400. The control valve 400 adjusts its opening based on the flow rate measured by the flow meter 300 corresponding to the same acid storage container 100, thereby controlling the instantaneous flow rate and total amount of acid solution flowing from each acid storage container 100 into the mixing container 200. Firstly, positioning the flow meter 300 upstream of the control valve 400 reduces the impact of changes in the control valve 400's opening on the flow meter 300's measurement, thus avoiding interference with the control valve 400's operation. Rapid changes in the opening of the flow meter 300 cause fluctuations in the flow of the acid solution in the connecting path, resulting in measurement distortion of the flow meter 300. Secondly, since the flow meter 300 is located upstream of the control valve 400, it can detect changes in the flow of the acid solution in the connecting path earlier, thereby adjusting the opening of the control valve 400, shortening the response time, and making the delivery of the acid solution more stable. This allows for more precise control of the instantaneous flow rate and total flow rate of the acid solution flowing from each acid storage container 100 into the mixing container 200, so as to meet the control requirements of the acid solution in the acid dissolution experiment and improve the accuracy and reliability of the experimental data.

[0046] In other embodiments, control valves 400 and flow meters 300 are sequentially installed along the connection path from each acid storage container 100 to the mixing container 200. The control valve 400 adjusts its opening based on the flow rate measured by the flow meter 300 corresponding to the same acid storage container 100, thereby controlling the instantaneous flow rate and total flow rate of the acid solution flowing from each acid storage container 100 into the mixing container 200. However, since the flow meter 300 is located downstream of the control valve 400, the flow rate of the acid solution can only be measured after passing through the control valve 400, and the opening of the control valve 400 is then adjusted. This results in a lag between the adjustment of the control valve 400 opening and the change in the acid solution flow rate, causing significant fluctuations in the acid solution flow rate along the connection path from each acid storage container 100 to the mixing container 200, which is detrimental to the control of the acid solution.

[0047] In some embodiments, the flow meter 300 and the control valve 400 are configured in a one-to-one correspondence with the acid storage container 100, such as... Figure 1As shown, each acid storage container 100 corresponds to one flow meter 300 and one control valve 400. Therefore, the number of acid storage containers 100, flow meters 300, and control valves 400 in the entire acid dissolution experimental apparatus 10 is the same. Of course, the number of flow meters 300 and control valves 400 can also be more than the number of acid storage containers 100. For example, multiple flow meters 300 can be set on the same connecting path between the acid storage container 100 and the mixing container 200 for mutual verification, reducing errors and improving measurement accuracy. In addition, multiple control valves 400 can be set on the same connecting path between the flow meter 300 and the mixing container 200, some of which serve as backup control valves 400. When a single valve fails, the backup control valves 400 can be activated to continue the operation of the acid dissolution experimental apparatus 10, thereby improving the reliability of the operation of the acid dissolution experimental apparatus 10 and reducing the risk of shutdown of the acid dissolution experimental apparatus 10.

[0048] In addition, such as Figure 1 As shown, the acid dissolution experimental apparatus 10 also includes a controller 500, which is electrically connected to a flow meter 300 and a control valve 400. The controller 500 adjusts the opening of the control valve 400 corresponding to the same acid storage container 100 according to the flow rate measured by the flow meter 300. With this configuration, the controller 500 can adjust the opening of the control valve 400 on the connecting path between the same acid storage container 100 and the mixing container 200 in real time according to the flow rate measured by the flow meter 300. This ensures that the flow rate of the acid solution remains stable when flowing through the connecting path between the acid storage container 100 and the mixing container 200, thereby improving the accuracy of the acid solution flow rate control. This, in turn, ensures the accuracy of the total flow rate of the acid solution flowing from each acid storage container 100 into the mixing container 200, guarantees the chemical balance when reacting with marine sediments in subsequent experiments, reduces reaction errors, and ensures the accuracy and reliability of experimental data. This provides accurate and reliable data support for the accurate analysis of the composition of marine sediments.

[0049] In some embodiments, the controller 500 includes a display, a processor, a memory, etc., wherein the processor is used to process the flow data fed back by the flow meters 300 and issue execution instructions to the control valves 400; the memory is used to store the control program, the instantaneous flow data measured by each flow meter 300, the total flow data, and the opening data of each control valve 400, so as to record the experimental process; the display is used to display the instantaneous flow data measured by each flow meter 300, the total flow data, and the opening of each control valve 400, and has an operation module, which can be used to set the preset value of the total required flow rate of acid solution flowing from each acid storage container 100 to the mixing container 200, the start and stop of the acid dissolution experimental device 10, and the start and stop of the control valves 400. During the automatic control process of the control valves 400, the flow rate from each acid storage container 100 to the mixing container 200 is first controlled. The total amount of each acid solution is preset, and then the acid dissolution test device 10 is started. The control valve 400 opens automatically. Based on the comparison between the instantaneous flow rate and total flow rate measured by each flow meter 300 and the preset value, the opening degree of the control valve 400 is adjusted in real time through the controller 500. When the total amount of each acid solution flowing from each acid storage container 100 to the mixing container 200 reaches the preset value, the control valve 400 closes simultaneously. In the process of manually controlling the control valve 400, after the total amount of each acid solution flowing from each acid storage container 100 to the mixing container 200 is preset, the operator starts and stops the control valve 400 in the operation module. However, in the automatic control method of the control valve 400, the controller 500 issues the start and stop command of the control valve 400 and the response time of the control valve 400 is more accurate than the manual start and stop method of the control valve 400.

[0050] Furthermore, such as Figure 1 As shown, the control valve 400 includes a flow regulating valve 410 and a check valve 420. The flow regulating valve 410 is disposed between its corresponding flow meter 300 and mixing container 200, and the check valve 420 is disposed between its corresponding flow regulating valve 410 and mixing container 200. That is, the flow regulating valve 410 is disposed between the flow meter 300 and mixing container 200 on the communication path between the same acid storage container 100 and mixing container 200, and the check valve 420 is disposed between the same acid storage container 100 and mixing container 200. The flow regulating valve 410 and the mixing container 200 are connected in the communication path. Each flow regulating valve 410 adjusts the flow rate of the acid solution delivered from each acid storage container 100 to the mixing container 200 by changing its own opening. The one-way valve 420 is set to prevent the acid solution from flowing back into each acid storage container 100, thereby avoiding affecting the instantaneous flow rate and total flow rate of the acid solution delivered from each acid storage container 100 to the mixing container 200 in the acid dissolution experimental device 10, and improving the control accuracy of the instantaneous flow rate and total flow rate of the acid solution.

[0051] Therefore, as Figure 1As shown, a flow meter 300, a flow regulating valve 410, and a check valve 420 are sequentially installed on the connection path from each acid storage container 100 to the mixing container 200. The flow meter 300 transmits the measured flow rate on each connection path to the controller 500 via an electrical signal. The controller 500 controls the opening of the flow regulating valve 410 and the check valve 420 based on the flow feedback from the flow meter 300. It should be noted that the controller 500 adjusts the opening of the flow regulating valve 410 on the connection path between the same acid storage container 100 and the mixing container 200 in real time based on the real-time flow rate feedback from each flow meter 300, so as to control the acid storage container 100 to deliver the acid to the mixing container 200. The instantaneous and total flow rates of the acid solution in the mixing container 200 are measured to meet the acid solution requirements in acid dissolution experiments. In addition, the one-way valves only have two states: open and closed. When each flow regulating valve 410 changes from a non-working state to a working state, the controller 500 adjusts the corresponding one-way valve 420 on the same connection path to open. When each flow regulating valve 410 changes from a working state to a non-working state, the controller 500 adjusts the corresponding one-way valve 420 on the same connection path to close. This avoids fluctuations in the acid solution on the connection path caused by the opening and closing of the one-way valve 420, and improves the control accuracy of the acid solution flow rate delivered from each acid storage container 100 to the mixing container 200.

[0052] In some embodiments, the flow regulating valve 410 includes, but is not limited to, ball valves, butterfly valves, gate valves, needle valves, diaphragm valves, etc., wherein the flow regulating valve 410 includes, but is not limited to, pneumatic flow regulating valves, electric flow regulating valves, hydraulic flow regulating valves, etc., depending on the mode of operation; in addition, the one-way valve 420 includes, but is not limited to, lift check valves, swing check valves, butterfly check valves, ball check valves, double plate check valves, diaphragm check valves, spring-loaded check valves, etc.

[0053] Additionally, in some embodiments, such as Figure 1 As shown, the top cross-sectional dimension of the mixing chamber 210 is larger than the bottom cross-sectional dimension, so that the mixed acid solution formed by each acid storage container 100 flowing into the mixing chamber 210 can flow out of the mixing chamber 210 more smoothly, avoiding residue in the mixing chamber 210, thereby improving the reliability of the reaction between the mixed solution and marine sediments, and thus improving the accuracy and reliability of experimental data.

[0054] For example, the cross-sectional dimensions of the mixing chamber 210 gradually decrease from top to bottom, thereby guiding the acid solutions transported from each acid storage container 100 to the mixing chamber 210 to accumulate at the bottom of the mixing chamber 210 to form a mixed solution. This facilitates the subsequent extraction of the mixed solution from the bottom of the mixing chamber 210 and reduces dead zones where liquids may remain inside the mixing chamber 210, thereby reducing the amount of mixed solution remaining in the mixing chamber 210. This meets the requirement for the total amount of mixed acid solution reacting with marine sediments and improves the accuracy and reliability of experimental data.

[0055] Specifically, the bottom of the mixing chamber 210 can be funnel-shaped, including but not limited to conical funnel, square conical funnel, polygonal funnel, etc., in order to reduce the adhesion residue of the mixed acid solution in the mixing chamber 210 and reduce the reaction deviation with marine sediments.

[0056] In some embodiments, the adhesion of the mixed acid solution in the mixing chamber 210 can be reduced by selecting a mixing container 200 made of a suitable material, such as polytetrafluoroethylene or glass. Alternatively, the roughness of the inner surface of the mixing chamber 210 can be reduced by mechanical processing methods such as grinding and polishing, making it easier for the acid solution to flow and form a mixed acid solution. Or, the residue of the mixed acid solution after being discharged from the mixing chamber 210 can be reduced by coating the mixing chamber 210 with a fluoropolymer coating, an organosilicon material coating, a ceramic coating, or by using a combination of two or three of the above methods.

[0057] In some embodiments, a stirrer is provided in the mixing chamber 210 to stir the mixed acid solution in the mixing chamber 210, so that the acid solution in each acid storage container 100 is transported to the mixing chamber 210 and formed under the action of the stirrer, forming a more uniform mixed acid solution, which facilitates uniform contact with marine sediments in subsequent reactions.

[0058] In some embodiments, the stirring component includes, but is not limited to, stirring rods, stirring blades, etc.

[0059] In addition, the acid dissolution experimental apparatus 10 also includes a driving mechanism, which is connected to the stirring element to drive the stirring element to rotate relative to the mixing chamber 210.

[0060] In some embodiments, to fully mix the acid solutions delivered from each acid storage container 100 to the mixing chamber 210 and form a more uniform mixed acid solution, a stirring element is provided at the bottom of the mixing chamber 210 so that the stirring element can be fully or partially submerged in the mixed acid solution. The driving mechanism can be fixedly installed on the top, side wall, or bottom of the mixing container 200. For example, the driving mechanism includes a drive motor and a transmission shaft. The drive motor is fixedly installed on the top of the mixing container 200, and the transmission shaft passes through the top of the mixing container 200, with one end connected to the drive motor and the other end connected to the stirring element. This allows the transmission shaft to drive the stirring element to rotate relative to the mixing chamber 210 under the drive of the drive motor, thereby stirring the mixed solution and obtaining a more uniform mixed solution.

[0061] Furthermore, the drive motor in the drive mechanism provides rotational power to the stirring component. Specifically, the drive motor drives the stirring component at a speed of 500-2000 rpm to reduce the stirring time with a high speed. Of course, the drive motor can select the speed according to the total amount of the mixed acid solution to avoid splashing of the mixed acid solution if the total amount of the mixed acid solution is small and the stirring component speed is too fast, or the stirring time is increased if the total amount of the mixed acid solution is large and the stirring component speed is too slow.

[0062] In some embodiments, the drive motor in the drive mechanism is electrically connected to the controller 500. The start and stop of the drive motor and the duration of one run of the drive motor are set in the operation module of the controller 500. Thus, the start and stop of the drive motor, i.e. the agitator, can be manually controlled by the controller 500. Of course, the start of the drive motor can also be linked with the data of each flow meter 300 or the start and stop of each control valve 400. When all flow meters 300 change from having flow data to zero, or when all control valves 400 change from working state to non-working state, the drive motor automatically starts, thereby driving the agitator to rotate in the mixing chamber 210. After stirring for the set duration of one run, the operation stops, thereby reducing manual operation steps and reducing operation errors.

[0063] In some embodiments, such as Figure 1 As shown, the acid dissolution experimental apparatus 10 also includes a flow guiding and stirring element and a reaction vessel 600. The reaction vessel 600 and the mixing vessel 200 are connected. The flow guiding and stirring element is disposed on the communication path between the mixing vessel 200 and the reaction vessel 600. The flow guiding and stirring element has a flow guiding section, which is configured to guide the mixed acid solution in the mixing vessel 200 to the reaction vessel 600 so that the mixed acid solution and the marine sediment react in the reaction vessel 600.

[0064] Furthermore, the flow guide and stirring component also has a stirring section, which is configured to stir the mixed acid solution delivered from the mixing container 200 to the reaction container 600, so as to further mix the mixed acid solution in the mixing container 200 evenly, so that the reaction with the marine sediment in the reaction container 600 is more complete, thereby ensuring the experimental quality, improving the success rate of the experiment, and providing reliable and accurate data support for the analysis of marine sediment composition.

[0065] For example, the flow-guiding agitator is a spiral guide vane, which guides the mixed solution to flow in a spiral shape into the reaction vessel 600, making the flow of the mixed acid solution more orderly and stable. The spiral guide vane also gives the mixed acid solution a radial velocity component during the spiral flow, thereby promoting further mixing of the mixed acid solution at different positions in the cross-section of the connecting path between the mixing vessel 200 and the reaction vessel 600. This further improves the homogeneity of the mixed acid solution before entering the reaction vessel 600, so that the contact and reaction between the mixed acid solution and the marine sediment are more complete.

[0066] In addition, after the acid dissolution test apparatus 10 is used, it needs to be cleaned and regularly maintained to ensure its long-term stable operation. In some embodiments, cleaning the acid dissolution test apparatus 10 includes, but is not limited to, rinsing each acid storage tank, each connecting path, the mixing container 200 and the reaction container 600 with clean water multiple times to remove residual acid solution. The operation of the flow meter 300, flow regulating valve 410, check valve 420, stirring element, drive mechanism and controller 500 should be checked regularly. This includes, but is not limited to, checking the measurement accuracy of the flow meter 300, the sensitivity of the flow regulating valve 410 and check valve 420, the operation of the stirring element and drive mechanism, etc., and repairing or replacing them in a timely manner to ensure that the acid dissolution test apparatus 10 can be put into normal use next time.

[0067] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0068] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0069] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0070] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," "above," etc., may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An acid dissolution experimental apparatus, characterized in that, include: At least two acid storage containers (100) are arranged side by side; A mixing container (200) has a mixing chamber (210), and at least two of the acid storage containers (100) are respectively connected to the mixing chamber (210) so that the acid solution in the acid storage containers (100) is delivered to the mixing chamber (210). At least two flow meters (300) are provided on each of the communication paths between the acid storage container (100) and the mixing container (200), and the flow meters are configured to measure the flow rate of the acid solution delivered from each of the acid storage containers (100) to the mixing container (200); At least two control valves (400) are provided on the communication path between each of the flow meters (300) and the mixing container (200), and the control valves are configured to adjust their opening degree according to the flow rate measured by the flow meter corresponding to the same acid storage container (100).

2. The acid dissolution experimental apparatus according to claim 1, characterized in that, The acid dissolution experimental device (10) also includes a controller (500), which is electrically connected to the flow meter (300) and the control valve (400) respectively. The controller (500) adjusts the opening degree of the control valve (400) corresponding to the same acid storage container (100) according to the flow rate measured by the flow meter (300).

3. The acid dissolution experimental apparatus according to claim 1, characterized in that, The control valve (400) includes a flow regulating valve (410) and a check valve (420). The flow regulating valve (410) is disposed between the flow meter (300) and the mixing container (200) corresponding to it, and the check valve (420) is disposed between the flow regulating valve (410) and the mixing container (200) corresponding to it.

4. The acid dissolution experimental apparatus according to claim 1, characterized in that, The top cross-sectional dimension of the mixing chamber (210) is larger than the bottom cross-sectional dimension.

5. The acid dissolution experimental apparatus according to claim 4, characterized in that, The cross-sectional dimensions of the mixing chamber (210) gradually decrease from top to bottom.

6. The acid dissolution experimental apparatus according to claim 1, characterized in that, A stirring element is provided in the mixing chamber (210) to stir the mixed acid solution in the mixing chamber (210).

7. The acid dissolution experimental apparatus according to claim 6, characterized in that, The acid dissolution experimental apparatus (10) further includes a driving mechanism connected to the stirring element to drive the stirring element to rotate relative to the mixing chamber (210).

8. The acid dissolution experimental apparatus according to any one of claims 1-7, characterized in that, The acid dissolution experimental apparatus (10) further includes a flow guiding stirrer and a reaction vessel (600). The reaction vessel (600) and the mixing vessel (200) are connected. The flow guiding stirrer is disposed on the communication path between the mixing vessel (200) and the reaction vessel (600). The flow guiding stirrer has a flow guiding section, which is configured to guide the mixed acid solution in the mixing vessel (200) to the reaction vessel (600).

9. The acid dissolution experimental apparatus according to claim 8, characterized in that, The flow guide agitator also has a stirring section configured to agitate the mixed liquid flowing from the mixing container (200) to the reaction container (600).

10. The acid dissolution experimental apparatus according to claim 9, characterized in that, The flow-guiding and stirring component is a spiral flow-guiding blade.

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