A method for controlling moisture of a raw material reagent for synthesizing aramid

Abstract

The application discloses a kind of water content regulation methods of raw material reagent of synthetic aramid fiber, it is related to determination device field, water content regulation methods of raw material reagent of synthetic aramid fiber is applied to moisture detection regulation device, moisture detection regulation device includes: base, pipette component, reagent storage, detection component, water supplement component and controller, controller can control mechanical arm and pipette mechanism according to the water content regulation method of raw material reagent of synthetic aramid fiber, to at least part of reagent in reagent storage is transferred to moisture analyzer, controller can control water supplement component and reagent storage is watered.The water content regulation method of raw material reagent of synthetic aramid fiber proposed in the application can effectively solve the problems existing in traditional moisture detection and regulation method, improve the automation level of chemical production process and product quality stability.

Description

Technical Field

[0001] This invention relates to the field of measuring devices, and in particular to a method for controlling the moisture content of raw materials and reagents used in the synthesis of aramid fibers. Background Technology

[0002] In chemical production and polymer material preparation processes, the trace moisture content in the system and environment has a crucial impact on process stability and product performance. Taking the synthesis of aromatic polyamides (aramid fibers) as an example, this reaction requires strictly dry conditions. Excessive moisture can easily trigger side reactions, leading to a decline in product performance. Currently, widely used trace moisture determination methods (such as Karl Fischer titration) still mainly rely on manual sampling and offline analysis, which suffers from problems such as strong lag and low efficiency. Furthermore, if water needs to be added to adjust the dryness after detection, the lag in manual detection and the large errors in subsequent water addition operations make it difficult to control the dryness in a timely manner, and the amount of water cannot be accurately controlled. This can easily lead to excessive moisture, thereby affecting the stability of the reaction system and product quality. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a method for controlling the moisture content of raw materials and reagents used in the synthesis of aramid fibers, which can effectively solve the problems existing in traditional moisture detection and control methods, and improve the automation level of chemical production processes and the stability of product quality.

[0004] The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to embodiments of the present invention is applied to a moisture detection and control device, the moisture detection and control device comprising:

[0005] Base;

[0006] A pipetting assembly includes a robotic arm and a pipetting mechanism, wherein the robotic arm is disposed on the base and the pipetting mechanism is connected to the end of the robotic arm;

[0007] A reagent storage unit is disposed on the base and located on one side of the robotic arm;

[0008] The detection component includes a moisture analyzer, which is disposed on the base and located on one side of the robotic arm;

[0009] A water replenishment component is provided on the base and located on one side of the reagent storage unit, and is used to replenish water to the reagent storage unit;

[0010] The controller, the robotic arm, the moisture analyzer, the pipetting mechanism, and the water replenishment assembly are all electrically connected to the controller;

[0011] The method for controlling the moisture content of the raw materials and reagents used in the synthesis of aramid includes:

[0012] Control the robotic arm (210) and the pipetting mechanism (220) to transfer at least a portion of the reagent in the reagent storage unit (300) to the moisture analyzer (410).

[0013] The moisture analyzer (410) is controlled to analyze and determine the actual moisture content C of the reagent;

[0014] Determine whether the actual moisture content C is less than a preset moisture content threshold;

[0015] When the actual moisture content C is less than the preset moisture content threshold, the water replenishment component (500) is controlled to replenish water to the reagent storage component (300);

[0016] Define the preset moisture content threshold as (A, B), define the adjustment coefficient as D, and when the actual moisture content C is less than the preset moisture content threshold, control the water replenishment component (500) to replenish the reagent storage component (300) with water, including:

[0017] When the actual moisture content C is less than the preset moisture content threshold;

[0018] Obtain the volume V of the reagent in the reagent storage container (300);

[0019] The water replenishment component (500) is controlled to replenish water to the reagent storage component (300), and the amount of water replenishment is X, which satisfies: X=[A+(BA)×DC]×V×0.001.

[0020] According to the present invention, the method for controlling the moisture content of raw materials and reagents for synthesizing aramid includes a water replenishment component comprising an infusion pump, a water replenishment storage unit, and an infusion tube. The infusion pump is disposed on the base and electrically connected to the controller. The infusion pump is connected to the water replenishment storage unit and the reagent storage unit respectively through the infusion tube.

[0021] According to the present invention, the method for controlling the moisture content of raw materials and reagents for synthesizing aramid is provided in an embodiment of the present invention. The pipetting mechanism is detachably connected to the robotic arm, the base is provided with a placement rack, and the controller is capable of controlling the robotic arm to detach and position the pipetting mechanism on the placement rack.

[0022] According to the present invention, the method for controlling the moisture content of raw materials and reagents for synthesizing aramid is provided in the embodiment of the present invention, wherein the pipetting assembly includes at least two pipetting mechanisms, and the base is provided with at least two placement racks, and each pipetting mechanism corresponds to one placement rack.

[0023] According to the present invention, the method for controlling the moisture content of raw materials and reagents for synthesizing aramid includes a pipetting mechanism comprising a pipetting pump, a mounting base, and a first end. The pipetting pump and the first end are disposed on the mounting base, and the end of the robotic arm is provided with a first connector. The first end and the first connector are detachably connected.

[0024] According to the present invention, the method for controlling the moisture content of raw materials for synthesizing aramid is provided in the embodiment of the present invention. The first end is annular and has a plurality of grooves on its inner peripheral wall. The first connector is columnar and has a plurality of electrically retractable locking posts on its outer peripheral wall. Each locking post corresponds to one groove. When the first connector and the first end are connected, the controller can control the locking post to extend or retract to engage or disengage with the groove.

[0025] According to the method for controlling the moisture content of raw materials and reagents for synthesizing aramid provided in the embodiments of the present invention, the detection component further includes a display instrument, which is disposed on the base and electrically connected to the moisture analyzer, and / or the base is provided with a wastewater collection device, which is located on one side of the robotic arm.

[0026] The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to embodiments of the present invention has at least the following beneficial effects: By setting a base and integrating a pipetting assembly, a reagent storage container, a detection assembly, a water replenishment assembly, and a controller on the base, the robotic arm and pipetting mechanism of the pipetting assembly, under the control of the controller, can transfer at least a portion of the reagent in the reagent storage container to the moisture analyzer, achieving rapid moisture detection. This effectively overcomes the problems of lag, subjective operation, and untimely control in traditional manual sampling and detection, and allows for real-time acquisition of moisture data. Simultaneously, based on the detection results of the moisture analyzer, the controller can control the water replenishment assembly to replenish water to the reagent storage container, avoiding the problem of insufficient water volume control and excessive moisture caused by manual water addition. This further ensures the stability of the reaction system and product quality, improves the automation and reliability of the entire process, and reduces the product defect rate and production risks caused by moisture issues.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 A schematic diagram of the structure of a moisture detection and control device provided in an embodiment of the present invention;

[0030] Figure 2This provides another structural schematic diagram of the moisture detection and control device for embodiments of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the robotic arm and pipetting assembly provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic flowchart of a method for controlling the moisture content of raw materials and reagents for synthesizing aramid fibers, provided in an embodiment of the present invention.

[0033] The attached icons are numbered as follows:

[0034] 100. Base; 110. Placement rack; 120. Wastewater collection device;

[0035] 200, pipetting assembly; 210, robotic arm; 211, first connector; 220, pipetting mechanism; 221, pipetting pump; 222, mounting base; 223, first end;

[0036] 300. Reagent storage components;

[0037] 400. Detection components; 410. Moisture analyzer; 420. Display instrument;

[0038] 500. Water replenishment component; 510. Infusion pump; 520. Water replenishment storage component. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 limiting this invention.

[0041] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0042] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0043] In chemical production and polymer material preparation processes, the trace moisture content in the system and environment has a crucial impact on process stability and product performance. Taking the synthesis of aromatic polyamides (aramid fibers) as an example, this reaction requires strictly dry conditions. Excessive moisture can easily trigger side reactions, leading to a decline in product performance. Currently, widely used trace moisture determination methods (such as Karl Fischer titration) still mainly rely on manual sampling and offline analysis, which suffers from problems such as strong lag, subjective operation, and untimely control, making it difficult to achieve real-time and stable moisture monitoring. Furthermore, if water needs to be added to adjust the dryness after detection, manual water addition makes it difficult to accurately control the amount of water, easily resulting in excessive moisture, further affecting the stability of the reaction system and product quality.

[0044] To address the aforementioned problems, embodiments of the present invention provide a moisture detection and control device. The specific structure and function of the moisture detection and control device provided in the embodiments of the present invention will be described below with reference to the text and accompanying drawings.

[0045] Reference Figures 1 to 3 According to an embodiment of the present invention, a moisture detection and control device includes: a base 100, a pipetting assembly 200, a reagent storage unit 300, a detection assembly 400, a water replenishment assembly 500, and a controller. The base 100 can be a substrate, a machine base, etc., thereby providing stable support for the entire device. The pipetting assembly 200 includes a robotic arm 210 and a pipetting mechanism 220. The robotic arm 210 adopts a multi-joint robotic arm structure, has multiple degrees of freedom, and can move flexibly in three-dimensional space. Its fixed end is installed in the middle of the base 100. The pipetting mechanism 220 is connected to the end of the robotic arm 210, and the pipetting pump 221 can accurately control the volume of reagent aspirated and discharged. The reagent storage unit 300 has an inner cavity for storing reagents, which is disposed on the base 100 and located on one side of the robotic arm 210, and is used to store the reagent to be detected. The moisture analyzer 410 of the detection assembly 400 is installed on the base 100 and located on the other side of the robotic arm 210, and is used to analyze the moisture content in the reagent. The water replenishment component 500 is located on the base 100 and on one side of the reagent storage unit 300, and is used to replenish water to the reagent storage unit 300. The controller adopts a programmable logic controller (PLC). The robotic arm 210, the moisture analyzer 410, the pipetting pump 221 of the pipetting mechanism 220, and the water pump of the water replenishment component 500 are all electrically connected to the controller via signal lines. The controller can accurately control and interact with data from each component.

[0046] In use, the controller first controls the movement of the robotic arm 210, which moves the pipetting mechanism 220 above the reagent storage container 300 and then draws in a portion of the reagent from the container. Next, under the control of the controller, the robotic arm 210 moves the pipetting mechanism 220 to the detection position of the moisture analyzer 410 and injects the drawn-in reagent into the analyzer 410.

[0047] Moisture analyzer 410 analyzes the moisture content of the injected reagent and transmits the detection results to the controller in the form of an electrical signal. Upon receiving the moisture content data, the controller makes a judgment. If the detected actual moisture content is lower than the lower limit of the preset moisture content threshold, the controller activates the water replenishment component 500 to automatically replenish the water; if the detected moisture content is higher than the upper limit of the preset moisture content threshold, the controller determines that the current reagent is no longer suitable as an experimental medium, performs a solution disposal operation, and sends an alarm.

[0048] Optionally, a magnetic actuator is provided on the base 100, and a magnetic stirring rod is provided inside the reagent storage unit 300. The reagent storage unit 300 is positioned above the magnetic actuator. After water replenishment, the controller can control the magnetic actuator to drive the magnetic stirring rod to rotate for stirring, so that the reagent and the added water are evenly mixed. After stirring, the controller again controls the robotic arm 210 and the pipetting mechanism 220 to repeat the above sampling and detection steps to detect the moisture content of the reagent after water replenishment. This cycle is repeated to achieve real-time monitoring and precise control of the moisture in the reaction system, ensuring the stable progress of the aramid synthesis process and the stable and reliable quality of the product.

[0049] According to the embodiments of the present invention, the moisture detection and control device, by setting a base 100 and integrating a pipetting assembly 200, a reagent storage container 300, a detection assembly 400, a water replenishment assembly 500, and a controller on the base 100, allows the robotic arm 210 and the pipetting mechanism 220 of the pipetting assembly 200, under the control of the controller, to transfer at least a portion of the reagent in the reagent storage container 300 to the moisture analyzer 410, achieving rapid moisture detection. This effectively overcomes the problems of lag, subjective operation, and untimely control in traditional manual sampling and detection, and can acquire moisture data in real time. Simultaneously, based on the detection results of the moisture analyzer 410, the controller can control the water replenishment assembly 500 to replenish water to the reagent storage container 300, avoiding the problem of insufficient water volume control and excessive moisture caused by manual water addition. This further ensures the stability of the reaction system and product quality, improves the automation and reliability of the entire process, and reduces the product defect rate and production risks caused by moisture problems.

[0050] Reference Figures 1 to 3According to the moisture detection and control device provided in this embodiment of the invention, the water replenishment component 500 includes an infusion pump 510, a water replenishment storage unit 520, and an infusion tube. The water replenishment storage unit 520 is a transparent glass bottle, which facilitates observation of the internal water level. The water replenishment storage unit 520 is placed on the base 100, and its position can be set according to actual needs to ensure that it does not affect the normal operation of other components and facilitates operations such as adding water. The infusion pump 510 is a high-precision electric infusion pump 510, which is installed on the side of the base 100 near the water replenishment storage unit 520 to ensure that the connection length of the infusion tube between the infusion pump 510 and the water replenishment storage unit 520 is moderate, reducing resistance during liquid delivery. The infusion pump 510 is electrically connected to the controller through a signal line, enabling the controller to accurately control parameters such as the start / stop, operating speed, and infusion volume of the infusion pump 510. The infusion tube is made of tetrafluoroethylene (PTFE), which has good flexibility and chemical stability, can adapt to the usage requirements of different environments, and will not chemically react with the delivered water or other reagents. One end of the infusion tube is connected to the water replenishment storage unit 520 to ensure that the water in the water replenishment storage unit 520 can flow out smoothly; the other end is connected to the top water inlet of the reagent storage unit 300 so that water can be accurately delivered to the reagent storage unit 300.

[0051] During operation, when the moisture analyzer 410 detects that the moisture content of the reagent in the reagent storage unit 300 is lower than the lower limit of the preset moisture content threshold, the controller sends a start signal to the infusion pump 510. Upon receiving the signal, the infusion pump 510 starts operating and, according to the water replenishment amount calculated by the controller, extracts water from the water replenishment storage unit 520 and delivers it to the reagent storage unit 300 through the infusion tube. This achieves precise control of the reagent moisture content by the moisture detection and control device, improving the automation level and reliability of the entire device.

[0052] Optionally, the infusion pump 510 is a precision pump with a small infusion range, such as a range of 10 μl; the infusion tubing has a small diameter to enable small-dose fluid replenishment, such as a diameter of 1 mm.

[0053] Reference Figures 1 to 3 According to the moisture detection and control device provided in this embodiment of the invention, the pipetting mechanism 220 is detachably connected to the robotic arm 210. A placement rack 110 is provided on the base 100. The placement rack 110 is made of metal and mainly includes four supporting legs and a support plate provided on the supporting legs, which has sufficient strength and stability. The position of the placement rack 110 can be set according to actual conditions to ensure that it is in a relatively empty area on the base 100 and does not affect the normal operation of other components, so that the robotic arm 210 can move the pipetting mechanism 220 there for placement.

[0054] After the device completes a pipetting operation, or when the pipetting mechanism 220 needs to be replaced or maintained according to a preset program, the controller sends a control command to the robotic arm 210. Upon receiving the command, the robotic arm 210 follows the path and actions preset by the controller, gradually bringing the pipetting mechanism 220 closer to and placing it on the placement rack 110, after which the robotic arm 210 and the pipetting mechanism 220 separate. When the pipetting mechanism 220 needs to be used again, the controller sends a command to the robotic arm 210 again, and the robotic arm 210 engages with the pipetting mechanism 220 on the placement rack 110, preparing for subsequent pipetting operations. Through this detachable connection and the design of the placement rack 110, the moisture detection and control device can more flexibly respond to different usage needs, facilitating the replacement, cleaning, and maintenance of the pipetting mechanism 220, improving the device's efficiency and reliability, and extending the service life of the pipetting mechanism 220.

[0055] Reference Figure 1 and Figure 2 According to the moisture detection and control device provided in the embodiments of the present invention, the pipetting assembly 200 includes at least two pipetting mechanisms 220, which will be described here as an example. One pipetting mechanism 220 is used for accurately aspirating and transferring trace amounts of liquid. Its volume range is small, which can meet the needs of precise operation of trace reagents, for example, in steps requiring the addition of extremely small amounts of liquid. The other pipetting mechanism 220 is a large-capacity pipette used for handling larger volumes of liquid. Its volume range is large, suitable for use in scenarios requiring the addition of large amounts of solvent or diluting reagents, such as in batch transfer or large-scale dilution operations, enabling rapid and efficient completion of liquid transfer tasks.

[0056] At least two placement racks 110 are provided on the base 100. Taking two placement racks 110 as an example, the two placement racks 110 are respectively matched with the size and shape of the two pipetting mechanisms 220, and have sufficient strength and stability to place the pipetting mechanisms 220 well.

[0057] Optionally, the two pipetting mechanisms 220 can also be used for different reagents to avoid mixing of different reagents during operation.

[0058] Reference Figures 1 to 3According to the moisture detection and control device provided in the embodiment of the present invention, the pipetting mechanism 220 includes a pipetting pump 221, a mounting base 222, and a first end 223. The pipetting pump 221 can be an electric plunger pump with high precision and high stability, thereby enabling precise control of the reciprocating motion of the plunger to achieve precise control of the liquid intake and discharge volume, meeting the strict requirements for liquid transfer volume during moisture control. The mounting base 222 includes a base plate and a vertical plate. The vertical plate is disposed on one side of the base plate and is perpendicular to the base plate. The pipetting pump 221 is fixed to the vertical plate by fasteners, which can prevent the pipetting pump 221 from shifting due to vibration during the pipetting process. The first end 223 is fixed to the base plate of the mounting base 222. The end of the robotic arm 210 is provided with a first connector 211, which is detachably connected to the first end 223.

[0059] During operation, when a pipetting operation is required, the controller first controls the robotic arm 210 to move to the position of the pipetting mechanism 220, and aligns and connects the first connector 211 at its end to the first end 223 on the pipetting mechanism 220. After connection, the controller controls the robotic arm 210 to transfer the entire pipetting mechanism 220 to the reagent storage unit 300, and then sends a command to the pipetting pump 221. The pipetting pump 221 starts working, drawing reagents according to the set parameters. After drawing, the robotic arm 210 transfers the pipetting mechanism 220 above the moisture analyzer 410, and the reagent in the pipetting pump 221 falls into the moisture analyzer 410 for testing.

[0060] Optionally, the first end 223 is annular in shape, with multiple circular grooves on its inner wall; the first connector 211 is cylindrical in shape, with multiple electrically controllable telescopic locking pins on its outer wall. The ends of the locking pins are circular. When the first connector 211 is inserted into the first end 223, the controller can control the locking pins to extend or retract, thereby enabling the ends of the locking pins to engage or disengage with the grooves on the inner wall of the first end 223, thus achieving a detachable connection.

[0061] Optionally, the first end 223 and the first connector 211 can also be detached by means of quick-connect buckles. They can be detached automatically by the controller or by the operator operating the buckles.

[0062] Reference Figure 1 and Figure 2According to the moisture detection and control device provided in this embodiment of the invention, the detection component 400 further includes a display 420, which is mounted on the base 100. The installation position of the display 420 can be set according to actual needs to ensure that it is convenient for operators to view the displayed information at any time during operation, without interfering with other components, thus ensuring a reasonable and orderly operating space for the entire device. The display 420 is electrically connected to the moisture analyzer 410 via a signal line. When the moisture analyzer 410 detects the moisture content of the reagent in the reagent storage container 300, it converts the detected electrical signal into a digital signal and transmits it to the display 420 in real time via the signal line. After receiving these digital signals, the display 420 processes and analyzes the data, and then displays it on the LCD screen in the form of intuitive numbers, charts, or curves. Operators can understand the moisture content of the reagent in a timely and accurate manner simply by observing the information on the display 420.

[0063] Reference Figure 1 and Figure 2 According to the moisture detection and control device provided in this embodiment of the invention, the base 100 is provided with a wastewater collection component 120. The wastewater collection component 120 is cylindrical in shape with a large opening at the top to facilitate the smooth flow of wastewater. A raised baffle is designed around the edge of the opening to prevent wastewater from splashing out during the flow process. The wastewater collection component 120 is installed on one side of the robotic arm 210. Its specific position can be set according to actual needs to ensure that it does not affect the normal range of motion of the robotic arm 210 and that the robotic arm 210 can move freely and flexibly when performing operations such as pipetting and stirring, without colliding with the wastewater collection component 120.

[0064] Reference Figure 4 The embodiments of the present invention also propose a method for controlling the moisture content of raw materials and reagents for synthesizing aramid fibers, applied to the moisture detection and control device provided in the embodiments of the present invention. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid fibers includes:

[0065] S100: Control the robotic arm 210 and the pipetting mechanism 220 to transfer at least a portion of the reagent in the reagent storage unit 300 to the moisture analyzer 410;

[0066] S200: Controls the moisture analyzer 410 to analyze and determine the actual moisture content C of the reagent;

[0067] S300: Determine whether the actual moisture content C is less than the preset moisture content threshold;

[0068] S400: When the actual moisture content C is less than the preset moisture content threshold, the water replenishment component 500 is controlled to replenish the reagent storage component 300 with water.

[0069] During operation, the controller first controls the robotic arm 210 to move the pipetting mechanism 220 above the reagent storage container 300 and aspirate a portion of the reagent. Then, the robotic arm 210 moves the pipetting mechanism 220 to the detection position of the moisture analyzer 410 and injects the reagent into it. Once the reagent enters the moisture analyzer 410, the controller activates the analyzer to determine the actual moisture content C (ppm) of the reagent. The moisture analyzer 410 feeds back the actual moisture content C as a digital signal to the controller for subsequent judgment and processing.

[0070] After receiving the actual moisture content C, the controller compares it with a preset moisture content threshold. This preset threshold is pre-set in the controller based on specific process requirements and reagent properties, representing the allowable moisture content of the reagent under that process. The controller quickly and accurately determines whether the actual moisture content C is less than the preset threshold.

[0071] If the actual moisture content C is less than the preset moisture content threshold, it indicates that the moisture content in the current reagent is too low, which may affect subsequent process reactions or product quality. In this case, the controller sends a command to the water replenishment component 500. The water replenishment component 500 replenishes water according to the controller's command. Through this method of moisture control in the raw materials and reagents for synthesizing aramid, the moisture detection and control device can control the moisture content of the reagent in real time and accurately, ensuring that the device is always in optimal operating condition and meeting the process requirements of chemical production and other fields.

[0072] A method for controlling the moisture content of raw materials and reagents for synthesizing aramid fibers according to embodiments of the present invention:

[0073] Define a preset moisture content threshold as (A, B), define an adjustment coefficient as D, and S400: When the actual moisture content C is less than the preset moisture content threshold, control the water replenishment component 500 to replenish water to the reagent storage component 300, including:

[0074] When the actual moisture content C is less than the preset moisture content threshold;

[0075] Obtain the volume V of the reagent within the reagent storage container 300;

[0076] The water replenishment component 500 replenishes water to the reagent storage component 300, and the amount of water replenished is X.

[0077] The water replenishment volume X satisfies: X = [A + (BA) × DC] × V × 0.001.

[0078] First, the preset threshold is defined as (A, B), in ppm. This threshold range is set based on the required moisture content of the reagent in the process. A represents the lower limit of the reagent moisture content under this process, and B represents the upper limit. Only when the reagent moisture content is within this range can the stable operation of subsequent processes and the achievement of product quality standards be guaranteed.

[0079] Taking the production of aramid fibers as an example, after the moisture analyzer 410 obtains the actual moisture content C of the reagent, the controller compares it with a preset threshold (A, B). Once it is determined that the actual moisture content C is less than the preset moisture content threshold, i.e., C < A, it indicates that the moisture content in the current reagent is too low and a water replenishment operation is required.

[0080] Next, the controller acquires the reagent volume V (ml) within the reagent storage unit 300. This can be achieved by installing a high-precision liquid level sensor within the reagent storage unit 300, by having the operator input the data into the controller, or by setting a mass sensor to detect the mass of the reagent storage unit 300 and the reagent as a whole, subtracting the weight of the reagent storage unit 300 itself, and then calculating the volume using the density, mass, and volume formula. Based on the reagent volume V (ml) within the reagent storage unit 300, the controller then controls the water replenishment component 500 to replenish the reagent storage unit 300, simultaneously determining the water replenishment volume X according to a specific water replenishment calculation formula. The water replenishment volume X satisfies the formula X = [A + (BA) × DC] × V × 0.001 (μl). The principle behind this formula is as follows: First, based on the lower limit A (ppm) of a preset threshold, an adjustment factor (BA) × D is added to A to ensure the reagent's moisture content after replenishment is closer to the optimal range. Here, (BA) is the width of the preset threshold range, and multiplying by the adjustment factor D selects a suitable increment within this range, making the moisture content after replenishment closer to the ideal state. Then, this adjusted value is subtracted from the actual moisture content C to obtain the required increase in moisture content relative to the current moisture content. This is then multiplied by the reagent volume V, and finally multiplied by 0.001 to convert the calculation result into a suitable unit for replenishment, such as μl. The specific unit can be adjusted according to the actual situation.

[0081] For example, assuming preset thresholds A=280ppm, B=300ppm, actual moisture content C=260ppm, adjustment coefficient D=0.2, and reagent volume V=100ml, the replenishment volume is calculated using the formula X=[280+(300-280)×0.2-260]×100×0.001, resulting in a replenishment volume X=2.4μl. Based on this calculated replenishment volume X, the controller precisely controls the replenishment component 500 to add 2.4μl of water to the reagent storage container 300. During the replenishment process, the controller continuously monitors the replenishment status to ensure accuracy. Once the preset replenishment volume is reached, the controller promptly stops the replenishment component 500, completing the entire replenishment process. This ensures effective and precise control of the reagent's moisture content, meeting process requirements.

[0082] Optionally, in the formula X=[A+(BA)×DC]×V×0.001, the adjustment coefficient D can be modified according to actual needs to make the water replenishment more in line with the process requirements.

[0083] The embodiments of the present invention also propose an automatic production equipment, including a moisture detection and control device as provided in the embodiments of the present invention. The specific structure of the moisture detection and control device is as described in the above embodiments. Since the automatic production equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0084] Optionally, the automated production equipment can be automated production equipment for aromatic polyamides (aramid fibers).

[0085] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A method for controlling the moisture content of raw materials and reagents used in the synthesis of aramid fibers, applied to a moisture detection and control device, the moisture detection and control device comprising: Base (100); The pipetting assembly (200) includes a robotic arm (210) and a pipetting mechanism (220), wherein the robotic arm (210) is disposed on the base (100) and the pipetting mechanism (220) is connected to the end of the robotic arm (210); A reagent storage unit (300) is disposed on the base (100) and located on one side of the robotic arm (210); The detection assembly (400) includes a moisture analyzer (410), which is disposed on the base (100) and located on one side of the robotic arm (210); A water replenishment component (500) is disposed on the base (100) and located on one side of the reagent storage unit (300), and is used to replenish water to the reagent storage unit (300); The controller, the robotic arm (210), the moisture analyzer (410), the pipetting mechanism (220) and the water replenishment assembly (500) are all electrically connected to the controller; The method for controlling the moisture content of the raw materials and reagents used in the synthesis of aramid is characterized by: Control the robotic arm (210) and the pipetting mechanism (220) to transfer at least a portion of the reagent in the reagent storage unit (300) to the moisture analyzer (410). The moisture analyzer (410) is controlled to analyze and determine the actual moisture content C of the reagent; Determine whether the actual moisture content C is less than a preset moisture content threshold; When the actual moisture content C is less than the preset moisture content threshold, the water replenishment component (500) is controlled to replenish water to the reagent storage component (300); Define the preset moisture content threshold as (A, B), define the adjustment coefficient as D, and when the actual moisture content C is less than the preset moisture content threshold, control the water replenishment component (500) to replenish the reagent storage component (300) with water, including: When the actual moisture content C is less than the preset moisture content threshold; Obtain the volume V of the reagent in the reagent storage container (300); The water replenishment component (500) is controlled to replenish water to the reagent storage component (300), and the amount of water replenishment is X, which satisfies: X=[A+(BA)×DC]×V×0.

001.

2. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to claim 1, characterized in that, The water replenishment component (500) includes an infusion pump (510), a water replenishment storage unit (520), and an infusion tube. The infusion pump (510) is located on the base (100) and electrically connected to the controller. The infusion pump (510) is connected to the water replenishment storage unit (520) and the reagent storage unit (300) respectively through the infusion tube.

3. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to claim 1, characterized in that, The pipetting mechanism (220) is detachably connected to the robotic arm (210), the base (100) is provided with a placement rack (110), and the controller can control the robotic arm (210) to detach and place the pipetting mechanism (220) in the placement rack (110).

4. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to claim 3, characterized in that, The pipetting assembly (200) includes at least two pipetting mechanisms (220), and the base (100) is provided with at least two placement racks (110), with each pipetting mechanism (220) corresponding to one placement rack (110).

5. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to claim 3, characterized in that, The pipetting mechanism (220) includes a pipetting pump (221), a mounting base (222), and a first end (223). The pipetting pump (221) and the first end (223) are mounted on the mounting base (222). The end of the robotic arm (210) is provided with a first connector (211). The first end (223) is detachably connected to the first connector (211).

6. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to claim 5, characterized in that, The first end (223) is annular and has multiple grooves on its inner peripheral wall. The first connector (211) is columnar and has multiple electrically retractable locking pins on its outer peripheral wall. Each locking pin corresponds to one groove. When the first connector (211) and the first end (223) are connected, the controller can control the locking pins to extend or retract to engage or disengage with the grooves.

7. The method for controlling the moisture content of raw materials and reagents for synthesizing aramid according to claim 1, characterized in that, The detection component (400) also includes a display (420) which is located on the base (100) and electrically connected to the moisture analyzer (410), and / or the base (100) is provided with a wastewater collection device (120) located on one side of the robotic arm (210).

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