Ultrasonic nanometer material crushing system capable of controlling raw material ratio

Abstract

The utility model discloses an ultrasonic nanometer material crushing system capable of controlling the raw material ratio, and belongs to the technical field of nanometer material treatment. The system comprises a plurality of material barrels, a mixing barrel, a reaction kettle and a control unit. Each material barrel is connected with the mixing barrel through a pipeline provided with a first flow control unit, so that raw materials are accurately input in proportion; the mixing barrel has mechanical stirring and ultrasonic crushing functions and is used for primary treatment; and the mixed material is conveyed to the reaction kettle through the second flow control unit for ultrasonic finish machining, and is discharged through the third flow control unit after treatment. And the control unit comprises a ratio adjusting module and a flow synchronizing module, and dynamically adjusts each flow unit according to feedback data to ensure accurate raw material ratio and flow synchronization. And through digital closed-loop control, the proportioning precision and the automation level are remarkably improved, personal errors are reduced, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This invention belongs to the field of nanomaterial pulverization technology, specifically relating to an ultrasonic nanomaterial pulverization system with controllable raw material ratio. Background Technology

[0002] Nanomaterials, due to their quantum size effect and surface effect, have irreplaceable application value in catalysis, sensing, drug delivery, and other fields. The quality of the materials directly depends on the precise control of key parameters during the preparation process. However, existing nanomaterial pulverization and mixing processes have the following technical defects:

[0003] 1. Insufficient precision in dynamic proportioning of multiple raw materials

[0004] Traditional proportioning control relies on manual weighing or static proportioning devices, which have large errors and cannot meet the high-precision proportioning requirements of multi-component nanomaterials.

[0005] 2. Flow dynamic imbalance in continuous production

[0006] During the transfer of materials from the mixing unit to the reaction unit, existing systems mostly use unidirectional pump control and lack real-time closed-loop verification of inlet / outlet flow rates. This defect causes continuous fluctuations in the liquid level inside the reactor, resulting in uneven distribution of ultrasonic energy density and reduced pulverization efficiency.

[0007] 3. Full-process automated control of fault lines

[0008] In the current process chain, raw material supply, mixing and crushing, and finishing are mostly independent control units, and the data interaction between modules is delayed, making it impossible to achieve cross-process collaborative optimization.

[0009] The aforementioned technological bottlenecks severely restrict the large-scale production of high-performance nanomaterials. Summary of the Invention

[0010] This invention addresses the aforementioned problems in the existing technology by proposing an ultrasonic nanomaterial pulverizing system with controllable raw material ratios.

[0011] This utility model can be achieved through the following technical solutions:

[0012] An ultrasonic nanomaterial pulverizing system with controllable proportions, comprising:

[0013] Multiple material bins, each used to store different types of raw materials;

[0014] A mixing tank is configured to perform preliminary processing of raw materials. Each of the material tanks is connected to the mixing tank through its own raw material conveying pipeline, and each of the raw material conveying pipelines is equipped with an independent first flow control unit.

[0015] A reaction vessel, which is connected to the mixing tank and is used to refine the mixture output from the mixing tank, wherein a second flow control unit and a third flow control unit are respectively provided on the input pipeline and the output pipeline of the reaction vessel;

[0016] A control unit, which is signal-connected to the first flow control unit, the second flow control unit, and the third flow control unit, includes:

[0017] The proportioning adjustment module dynamically adjusts the input flow rate of each raw material based on preset raw material proportioning parameters and feedback data from the first flow control unit.

[0018] The flow synchronization module controls the total input flow value of the second flow control unit according to preset parameters. After the reaction vessel is processed, the third flow control unit is opened and its total output flow value is controlled to match the total input flow value of the second flow control unit.

[0019] As a further improvement of this utility model, the first flow control unit includes a first flow meter and a first solenoid valve, and the control unit controls the opening and closing of the first solenoid valve according to the data fed back by the first flow meter.

[0020] As a further improvement of this utility model, the second flow control unit includes:

[0021] A diaphragm metering pump is installed on the input line;

[0022] The second flow meter is located at the output end of the diaphragm metering pump.

[0023] As a further improvement of this utility model, the control unit calculates and controls the extraction rate of the diaphragm metering pump based on the difference between the total flow rate extracted by the diaphragm metering pump and the preset total flow rate.

[0024] As a further improvement of this utility model, the third flow control unit includes:

[0025] A third flow meter is installed on the output pipeline of the reactor.

[0026] The third solenoid valve is installed in series with the third flow meter;

[0027] The control unit controls the closing of the third solenoid valve based on the feedback data from the third flow meter.

[0028] As a further improvement of this utility model, the reactor is equipped with an ultrasonic tool head, which is controlled by an external ultrasonic generator. The ultrasonic generator is equipped with a current sensor for detecting the real-time current of the ultrasonic tool head. The current sensor is signal-connected to the control unit. When the current fed back by the current sensor stabilizes within a preset range, the control unit generates a finishing completion signal and triggers the third solenoid valve to open.

[0029] As a further improvement of this utility model, the mixing tank includes:

[0030] The inner tank of the mixing tank is designed to hold raw materials and perform crushing processing.

[0031] A mixing tank jacket surrounds the inner tank of the mixing tank and is filled with a heat-conducting medium.

[0032] As a further improvement of this utility model, the inner barrel of the mixing tank is provided with:

[0033] A mechanical stirring mechanism, including a stirring shaft and blades connected to a drive motor;

[0034] At least one ultrasonic pulverizing tool rod extends axially along the inner barrel of the mixing tank.

[0035] As a further improvement of this utility model, the reaction vessel includes:

[0036] The inner tank of the reactor is designed to perform ultrasonic finishing on the mixed raw materials.

[0037] A reaction vessel jacket surrounds the inner tank of the reaction vessel and is used to fill a heat-conducting medium.

[0038] As a further improvement of this utility model, both the mixing tank jacket and the reaction vessel jacket have a temperature control system, the temperature control system comprising:

[0039] A circulation system consisting of a temperature detection module and a water pump;

[0040] A cooling system consisting of a compressor and a condenser;

[0041] A heating system consisting of heating elements;

[0042] The control unit is configured as follows:

[0043] When the detected temperature is higher than the preset range, the cooling system is activated and the speed of the water pump is increased;

[0044] When the detected temperature is lower than the preset range, the heating system is activated.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] 1. Improved accuracy: Through digital flow control unit and closed-loop control system, the raw material ratio is highly accurate, reducing the errors that may occur in traditional methods;

[0047] 2. High degree of automation: The entire process, from raw material input to final product output, can be completed automatically, which greatly improves production efficiency and reduces labor costs.

[0048] 3. Enhanced flexibility and controllability: Users can easily set different formulas and process parameters as needed, and the system can quickly respond and adjust to the optimal state to adapt to changing market demands;

[0049] 4. Reduce resource waste: Precise flow control and feedback mechanisms prevent over-addition or under-addition, effectively saving raw materials and reducing production costs;

[0050] 5. Constant temperature control: The temperature control system can monitor and adjust the temperature of the mixing tank and reaction vessel in real time during the mixing and processing process, ensuring that the materials are in the best reaction conditions during mixing and crushing, and avoiding product quality instability caused by temperature fluctuations. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the ultrasonic nanomaterial pulverizing system with controllable raw material ratio of this utility model.

[0052] Figure 2 This is a cross-sectional view of the mixing tank of this utility model.

[0053] In the diagram, 100 is the mixing tank; 101 is the drive motor; 102 is the stirring shaft; 103 is the impeller; 104 is the ultrasonic pulverizing tool rod; 110 is the reaction vessel; 120 is the raw material conveying pipeline; 121 is the first flow meter; 122 is the first solenoid valve; 130 is the input pipeline; 131 is the diaphragm metering pump; 132 is the second flow meter; 140 is the output pipeline; 141 is the third flow meter; and 142 is the third solenoid valve. Detailed Implementation

[0054] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0055] like Figures 1-2 As shown, this utility model provides an ultrasonic nanomaterial pulverizing system with controllable proportions, comprising:

[0056] Multiple material bins (only the discharge hoppers at the bottom of the material bins are shown in the figure) are used to store different types of raw materials;

[0057] The mixing tank 100 is configured to perform coarse processing on raw materials. Each material tank is connected to the mixing tank 100 through its own raw material conveying pipeline 120, and each raw material conveying pipeline 120 is equipped with an independent first flow control unit. The raw materials in the designated material tank are conveyed to the mixing tank 100 through the raw material conveying pipeline 120 for coarse processing and crushing.

[0058] The reactor 110 is connected to the mixing tank 100 and is used to refine the mixture output from the mixing tank 100. The input pipeline 130 and the output pipeline 140 of the reactor 110 are respectively equipped with a second flow control unit and a third flow control unit.

[0059] The control unit (such as a microcontroller) is signal-connected to the first flow control unit, the second flow control unit, and the third flow control unit. The control unit includes:

[0060] The proportioning adjustment module dynamically adjusts the input flow rate of each raw material based on preset raw material proportioning parameters and feedback data from the first flow control unit;

[0061] The flow synchronization module controls the total input flow of the second flow control unit according to preset parameters. After the reactor 110 is processed, the third flow control unit is turned on and the flow rate out of the reactor 110 is counted. After all the liquid in the reactor 110 is discharged, the third flow control unit is turned off and the second flow control unit is turned on to add a preset value (e.g., 4L) to the reactor 110. After the filling is completed, the second flow control unit is turned off. The above steps are repeated until the total amount of liquid flowing out of the third flow control unit matches the total input flow of the first flow control unit.

[0062] The pulverizing system provided in this embodiment adopts a closed-loop control of multiple digital systems. By simply inputting the required raw material type, proportion, and total volume on the control screen, the system can automatically select, proportion, and pulverize the raw materials.

[0063] Compared to existing technologies, this design has at least the following advantages:

[0064] 1. Improved accuracy: Through digital flow control unit and closed-loop control system, the raw material ratio is highly accurate, reducing the errors that may occur in traditional methods;

[0065] 2. High degree of automation: The entire process, from raw material input to final product output, can be completed automatically, which greatly improves production efficiency and reduces labor costs.

[0066] 3. Enhanced flexibility and controllability: Users can easily set different formulas and process parameters as needed, and the system can quickly respond and adjust to the optimal state to adapt to changing market demands;

[0067] 4. Reduce resource waste: Precise flow control and feedback mechanisms prevent over-addition or under-addition, effectively saving raw materials and reducing production costs.

[0068] Preferably, the first flow control unit includes a first flow meter 121 and a first solenoid valve 122. The control unit controls the opening and closing of the first solenoid valve 122 based on the data fed back by the first flow meter 121. The specific control principle is as follows:

[0069] (1) Input the proportion of various materials at the control terminal and input the total volume to be flowed into the mixing tank 100. The system will control the first solenoid valve 122 of each channel to open, and the corresponding digital first flow meter 121 will record the flow rate flowing into the mixing tank 100 in real time. After the preset value is reached, the filling will stop and a filling completion signal will be sent to the system.

[0070] (2) After all materials have been added, the system sends a signal that all materials have been added based on the feedback from the first flow meter 121. If a certain raw material is insufficient, the system will send a material shortage warning signal to the system based on the signal returned by the first flow meter 121 (the first solenoid valve 122 is open and the first flow meter 121 displays a number of 0), so that employees can replenish the material in a timely manner.

[0071] The following is a detailed description of mixing tank 100:

[0072] Preferably, the mixing tank 100 is designed with a double-layer structure, which includes:

[0073] The inner tank of the mixing tank is designed to hold the raw materials and perform preliminary crushing and mixing.

[0074] The mixing tank jacket surrounds the inner tank and is filled with a heat-conducting medium. Heat exchange occurs between the heat-conducting medium and the inner tank, ensuring that the ambient temperature of the inner tank remains within a preset temperature range, thereby guaranteeing the pulverization effect and achieving uniform mixing of the raw materials.

[0075] The mixing tank contains the following:

[0076] The mechanical stirring mechanism includes a stirring shaft 102 and a blade 103 connected to a drive motor 101;

[0077] At least one ultrasonic pulverizing tool rod 104 extends axially along the inner barrel of the mixing tank.

[0078] Its workflow is as follows:

[0079] (1) First, start the mechanical stirring mechanism. The stirring shaft 102 and the blade 103 rotate at a set speed to vigorously stir the various raw materials put into the mixing tank 100. This step is intended to break up larger lumps in the raw materials or to initially mix different kinds of raw materials to prepare for subsequent fine processing.

[0080] (2) After the initial mixing is completed (or simultaneously), turn on the ultrasonic pulverizing tool rod 104. The high-frequency vibration acts on the raw materials that have been initially dispersed to further refine the particle size and ensure that the final product achieves the required particle size distribution and high dispersion.

[0081] It should also be noted that the mixing tank jacket is equipped with a temperature control system, which includes:

[0082] A circulation system consisting of a temperature detection module and a water pump;

[0083] A cooling system consisting of a compressor and a condenser;

[0084] A heating system consisting of heating tubes.

[0085] The temperature detection module is attached to the inner tank of the mixing tank and is used to detect the temperature of the inner tank in real time.

[0086] Specifically, the control logic of this temperature control system is as follows:

[0087] (1) When the detected temperature is higher than the preset threshold:

[0088] The control unit determines that the current temperature is too high and immediately starts the cooling system;

[0089] If the temperature rises slowly, simply turn on the water pump and increase its speed appropriately to enhance the circulation efficiency of the cooling medium and achieve gentle cooling.

[0090] If the temperature rises extremely quickly (e.g., due to a large amount of heat generated by stirring or ultrasonic action), the compressor and condenser are started simultaneously to rapidly reduce the temperature of the heat transfer medium in the jacket and significantly increase the water pump speed to accelerate the flow of the low-temperature medium in the jacket, thereby achieving rapid cooling.

[0091] When the temperature approaches the upper limit of the preset range, the system automatically reduces the water pump speed to slow down the cooling rate, prevents over-adjustment of the temperature, and allows the temperature to smoothly approach and stabilize near the set value.

[0092] (2) When the detected temperature is lower than the preset threshold:

[0093] If the control unit determines that the current temperature is too low or the ambient temperature is too low, it will immediately start the heating system and the heating tube will start working to heat the heat-conducting medium in the jacket.

[0094] At the same time, appropriately increase the pump speed to promote the circulation of the heat transfer medium and accelerate the uniform distribution of heat;

[0095] Once the temperature rises back to the set range, the heating system enters a constant temperature maintenance mode, and the water pump keeps running at a low speed to avoid excessive temperature fluctuations.

[0096] The design of this temperature control system allows for real-time monitoring and adjustment of the temperature during mixing and processing, ensuring that the materials are in optimal reaction conditions during mixing and pulverizing, and preventing product quality instability caused by temperature fluctuations.

[0097] The following is a detailed description of reactor 110:

[0098] Preferably, the reaction vessel 110 includes:

[0099] The inner tank of the reactor is designed to perform ultrasonic finishing on the mixed raw materials.

[0100] The reactor jacket surrounds the inner tank of the reactor and is used to fill the heat-conducting medium.

[0101] The reaction vessel jacket has the same temperature control system as the mixing tank jacket, so it will not be described again here.

[0102] Preferably, the second flow control unit includes:

[0103] The diaphragm metering pump 131, which is installed on the input line 130, is responsible for extracting and transporting the material in the mixing tank 100 to the reaction vessel 110 as needed. The diaphragm metering pump 131 can provide accurate and stable flow output.

[0104] The second flow meter 132 is installed at the output end of the diaphragm metering pump 131 to monitor the actual material flow rate through the pipeline in real time and feed this data back to the control unit.

[0105] Its control logic is as follows:

[0106] (1) The control unit continuously monitors the actual flow data provided by the second flow meter 132 and compares it with the preset total flow value;

[0107] (2) The system calculates the difference between the total flow rate extracted by the diaphragm metering pump 131 and the preset total flow rate;

[0108] (3) Based on this difference, the control unit dynamically adjusts the extraction rate (i.e. flow rate) of the diaphragm metering pump 131 to achieve more precise flow control, avoid overshoot or undershoot, and ensure that the actual amount of material extracted matches the preset value.

[0109] Specifically, the diaphragm metering pump 131 initially performs high-speed extraction, then switches to medium-speed extraction when the extraction volume reaches 90% of the set value, and then performs low-speed extraction when it reaches 98%, until the flow feedback from the second flow meter 132 reaches the preset value.

[0110] In addition, the diaphragm metering pump 131 may entrain air during the initial extraction process, affecting the overall accuracy. To address this, the second flow meter 132 in the later stage will count the flow again to achieve the purpose of calibration.

[0111] Furthermore, the third flow control unit includes:

[0112] The third flow meter 141 is installed on the output pipeline of the reactor 110;

[0113] The third solenoid valve 142 is installed in series with the third flow meter 141;

[0114] The control unit controls the closing of the third solenoid valve 142 based on the feedback data from the third flow meter 141. In other words, the flow rate flowing into the reactor 110 is consistent with the flow rate flowing out each time. After the preset amount of mixed raw materials flows into the reactor 110, it is subjected to ultrasonic pulverization. After the processing is completed, the refined mixed raw materials are discharged outward. Then, the next batch of mixed raw materials is injected into the reactor 110 again, and so on, to achieve stable and continuous automatic control.

[0115] Therefore, it is necessary to set a marker for the completion of ultrasonic treatment in reactor 110. The processing progress can be determined by a set time interval or by a digital current sampling feedback method based on the load. The digital current sampling feedback method provides a more accurate basis for judgment, as explained below:

[0116] The reactor 110 is equipped with an ultrasonic tool head, which is controlled by an external ultrasonic generator (not shown in the figure). The ultrasonic generator is equipped with a current sensor to detect the real-time current of the ultrasonic tool head. The current sensor is connected to the control unit. When the current fed back by the current sensor is stable within a preset range, the control unit generates a finishing completion signal and triggers the third solenoid valve 142 to open.

[0117] For example, at the beginning of the process, the current sensor detects an input current of 9A. After the process is completed, the input current detected by the current sensor will remain stable within 6A±0.1A for a long time. At this time, it can be determined that the ultrasonic treatment of the reactor 110 is complete. Then, the control unit automatically opens the third solenoid valve 142 at the output end until all the liquid in the reactor 110 is discharged, and then automatically closes the third solenoid valve 142.

[0118] This method of indirectly assessing the degree of finishing by monitoring changes in current ensures that the same quality standards are met for each process, thus improving product quality and consistency.

[0119] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0120] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0121] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0122] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0123] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An ultrasonic nanomaterial pulverizing system with controllable raw material ratio, characterized in that, include: Multiple material bins, each used to store different types of raw materials; A mixing tank is configured to perform preliminary processing of raw materials. Each of the material tanks is connected to the mixing tank through its own raw material conveying pipeline, and each of the raw material conveying pipelines is equipped with an independent first flow control unit. A reaction vessel, which is connected to the mixing tank and is used to refine the mixture output from the mixing tank, wherein a second flow control unit and a third flow control unit are respectively provided on the input pipeline and the output pipeline of the reaction vessel; A control unit, which is signal-connected to the first flow control unit, the second flow control unit, and the third flow control unit, includes: The proportioning adjustment module dynamically adjusts the input flow rate of each raw material based on preset raw material proportioning parameters and feedback data from the first flow control unit. The flow synchronization module controls the total input flow value of the second flow control unit according to preset parameters. After the reaction vessel is processed, the third flow control unit is opened and its total output flow value is controlled to match the total input flow value of the second flow control unit.

2. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 1, characterized in that, The first flow control unit includes a first flow meter and a first solenoid valve. The control unit controls the opening and closing of the first solenoid valve based on the data fed back by the first flow meter.

3. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 1, characterized in that, The second flow control unit includes: A diaphragm metering pump is installed on the input line; The second flow meter is located at the output end of the diaphragm metering pump.

4. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 3, characterized in that, The control unit calculates and controls the pumping rate of the diaphragm metering pump based on the difference between the total flow rate already extracted by the diaphragm metering pump and the preset total flow rate.

5. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 1, characterized in that, The third flow control unit includes: A third flow meter is installed on the output pipeline of the reactor. The third solenoid valve is installed in series with the third flow meter; The control unit controls the closing of the third solenoid valve based on the feedback data from the third flow meter.

6. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 5, characterized in that, The reactor is equipped with an ultrasonic tool head, which is controlled by an external ultrasonic generator. The ultrasonic generator is equipped with a current sensor to detect the real-time current of the ultrasonic tool head. The current sensor is connected to the control unit. When the current fed back by the current sensor stabilizes within a preset range, the control unit generates a finishing completion signal and triggers the third solenoid valve to open.

7. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 1, characterized in that, The mixing tank includes: The inner tank of the mixing tank is designed to hold raw materials and perform crushing processing. A mixing tank jacket surrounds the inner tank of the mixing tank and is filled with a heat-conducting medium.

8. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 1, characterized in that, The inner tank of the mixing tank is equipped with: A mechanical stirring mechanism, including a stirring shaft and blades connected to a drive motor; At least one ultrasonic crushing tool rod extends axially along the inner barrel of the mixing tank.

9. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 7, characterized in that, The reaction vessel includes: The inner tank of the reactor is designed to perform ultrasonic finishing on the mixed raw materials. A reaction vessel jacket surrounds the inner tank of the reaction vessel and is used to fill a heat-conducting medium.

10. The ultrasonic nanomaterial pulverizing system with controllable raw material ratio according to claim 9, characterized in that, Both the mixing tank jacket and the reaction vessel jacket have a temperature control system, which includes: A circulation system consisting of a temperature detection module and a water pump; A cooling system consisting of a compressor and a condenser; A heating system consisting of heating elements; The control unit is configured as follows: When the detected temperature is higher than the preset range, the cooling system is activated and the speed of the water pump is increased; When the detected temperature is lower than the preset range, the heating system is activated.

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