Concentration equipment and concentration control method

Abstract

The invention relates to the technical field of concentration processes, and discloses concentration equipment and a concentration control method, and the concentration equipment comprises a separation device, a feeding device, a foam detection device and a controller; in the concentration process, the feeding direction of the material in the horizontal direction can be adjusted by adjusting the rotating angle of the feeding pipe, so that the component of the speed of the material entering the gas-liquid separation chamber in the tangential direction is adjusted, and adjustable centrifugal force capable of inhibiting foaming can be generated; therefore, effective defoaming is carried out while feeding is carried out on the gas-liquid separation chamber by the feeding pipe, no other substances are introduced, and the influence on concentrated substances and the working environment in the gas-liquid separation chamber is avoided. Besides, according to the concentration equipment disclosed by the embodiment of the invention, the rotation angle of the feeding pipe can be correspondingly adjusted according to the foam amount in the gas-liquid separation chamber, dynamic defoaming can be realized in the concentration process, the foam eliminating effect is optimized, and the production efficiency and the product yield are favorably improved.

Description

Technical Field

[0001] The present application relates to the technical field of concentration processes, and in particular to a concentration device and a concentration control method. Background Art

[0002] In the fields of traditional Chinese medicine, biopharmaceuticals, and food processing, concentration processes often involve the presence of foaming ingredients such as saponins and proteins in the materials, leading to rapid foaming during the concentration process. This can cause equipment downtime and material loss, seriously impacting production efficiency and product yield. In related art concentration equipment, material is fed tangentially along the inner wall of the gas-liquid separation chamber through a feed port located on the side wall of the gas-liquid separation chamber. The centrifugal force generated by the tangential velocity component of the material moving along the inner wall of the gas-liquid separation chamber can crush some bubbles, which can have a certain defoaming effect. However, some bubbles are not crushed by the centrifugal force. During this process, the centrifugal force generated by this feeding method inhibits the further expansion of the bubbles or compresses them. The water vapor within these bubbles cannot undergo normal gas-liquid separation, resulting in failure to concentrate the material, which will affect the concentration efficiency of the material. Therefore, although this feeding method can achieve a certain defoaming effect, it also has an adverse impact on the concentration efficiency. Some defoaming measures used by some concentration equipment, such as using defoamers or spraying water to suppress foaming, have the risk of contaminating the product or affecting the environment within the concentration equipment, which still has a negative impact on the concentration process. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a concentration device capable of effectively defoaming, and the present application also proposes a concentration control method.

[0004] In a first aspect, the concentration device of the embodiment of the present application includes a separation device, a feeding device, a foam detection device and a controller; wherein, The separation device has a gas-liquid separation chamber for accommodating materials inside, and the lower part of the separation device is provided with a discharge port connected to the gas-liquid separation chamber; The feeding device includes a feeding pipe and an adjustment mechanism, one end of the feeding pipe is located outside the gas-liquid separation chamber, and the other end is located in the gas-liquid separation chamber and has a feeding port. The feeding pipe is movably arranged relative to the separation device. The adjustment mechanism is connected to the feeding pipe and is used to drive the feeding pipe to rotate to adjust the feeding direction of the feeding port along the horizontal direction. A foam detection device is connected to the separation device and is used to monitor the amount of foam in the gas-liquid separation chamber; The controller is communicatively connected to the feeding device and the foam detection device, and is used to control the adjustment mechanism to adjust the rotation angle of the feeding tube according to a feedback signal from the foam detection device.

[0005] The concentrating device according to the embodiment of the present application has at least the following beneficial effects: during the concentration process, the horizontal feeding direction of the material can be adjusted by adjusting the rotation angle of the feed pipe, thereby adjusting the component of the tangential velocity of the material entering the gas-liquid separation chamber, thereby generating an adjustable centrifugal force that can suppress foaming, thereby effectively defoaming while the feed pipe feeds the gas-liquid separation chamber, without introducing other substances, thereby avoiding affecting the concentrated material and the working environment in the gas-liquid separation chamber. In addition, the concentrating device according to the embodiment of the present application can adjust the rotation angle of the feed pipe according to the amount of foam in the gas-liquid separation chamber, so that the concentrating device can adjust the centrifugal force generated by the feed pipe feeding according to the real-time foam amount, and can achieve dynamic defoaming during the concentration process, optimizing the foam elimination effect while reducing the impact on the concentration efficiency, which is conducive to improving production efficiency and product yield.

[0006] According to some embodiments of the concentration equipment of the present application, the inner wall of the gas-liquid separation chamber includes a cylindrical inner wall of a cylindrical segment, the feed port is located on the inner side of the inner wall of the cylindrical segment, and the adjustment mechanism is used to adjust the angle β of the tangent between the feed pipe and the inner wall of the cylindrical segment along the horizontal direction, and the tangent passes through the center of rotation of the feed pipe.

[0007] According to some embodiments of the present application, the concentrating device, the angle β satisfies: 0≤β≤arctan (R / L); Among them, R is the radius of the inner wall of the cylindrical section, and L is the horizontal distance between the rotation center of the feeding tube and the axis of the inner wall of the cylindrical section.

[0008] According to the concentration equipment of some embodiments of the present application, the feed pipe is arranged to be inclined downward from the outside to the inside of the gas-liquid separation chamber.

[0009] According to some embodiments of the present application, the feed pipe forms an angle α with the horizontal direction, and the angle α satisfies: ; Wherein, R is the radius of the inner wall of the cylindrical segment, and t is the time it takes for the material to rotate one circle in the gas-liquid separation chamber; V V is the velocity component in the vertical direction of the velocity V when the material enters the gas-liquid separation chamber, ; g is the acceleration due to gravity.

[0010] According to the concentration equipment of some embodiments of the present application, the inner wall of the gas-liquid separation chamber also includes a conical cone section inner wall, which is connected to the bottom of the cylindrical section inner wall and has a radius decreasing downward; the separation device is provided with a discharge port connected to the gas-liquid separation chamber, and the discharge port is provided at the lower part of the cone section inner wall.

[0011] According to the concentration equipment of some embodiments of the present application, the feeding device also includes a flexible connecting cover, the separation device is provided with a connecting port connected to the gas-liquid separation chamber, one end of the flexible connecting cover is sealedly connected to the connecting port, the feeding pipe is passed through the flexible connecting cover to extend into the interior of the separation device, the other end of the flexible connecting cover is sealedly connected to the outer wall of the feeding pipe, and the flexible connecting cover is deformed as the feeding pipe rotates.

[0012] According to some embodiments of the concentration device of the present application, the adjustment mechanism includes a support, a fixing member and a regulator, the support and the fixing member are fixed to the outer wall of the separation device, the feed pipe is rotatably connected to the support, the regulator is installed on the fixing member, the regulator is connected to the feed pipe and is communicatively connected to the controller, and the regulator is used to drive the feed pipe to rotate relative to the support.

[0013] According to the concentration equipment of some embodiments of the present application, the feeding device further includes a hose connected to a portion of the feeding pipe located outside the separation device, and the feeding pipe is connected to a feeding pipeline through the hose.

[0014] According to some embodiments of the present application, the concentration device further comprises: a feeding pipeline connected to the feeding device of the concentrating device; A feeding device, connected to the feeding pipeline, and used to transport external materials to the feeding pipeline; a circulation device connected to the discharge port of the separation device and the feeding pipeline; A discharge pipeline is connected to the circulation device; the circulation device is used to return the material output from the discharge port to the feeding device or to the discharge pipeline; A vacuum device, connected to the separation device, for adjusting the air pressure environment in the gas-liquid separation chamber; Wherein, the controller is communicatively connected to the feeding device, the circulation device and the vacuum device.

[0015] In a second aspect, a concentration control method according to an embodiment of the present application employs a concentration device according to any of the above embodiments, and the method comprises: The material is fed into the gas-liquid separation chamber through the feeding pipe for gas-liquid separation; monitoring the amount of foam in the gas-liquid separation chamber by a foam detection device; The controller controls the rotation angle of the feeding pipe according to the foam amount, so that the material entering the gas-liquid separation chamber has a velocity component along the tangential direction of the material rotation path.

[0016] The concentration control method according to the embodiment of the present application has at least the following beneficial effects: gas-liquid separation and concentration are performed using a concentration device, and the velocity component of the material entering the gas-liquid separation chamber along the tangential direction of the material rotation path is automatically and in real time adjusted by detecting the amount of foam and adjusting the rotation angle of the feed pipe, thereby achieving dynamic defoaming during the concentration process, optimizing the foam elimination effect, and helping to improve production efficiency and product yield.

[0017] According to the concentration control method of some embodiments of the present application, the method in which the controller controls the rotation angle of the feeding pipe according to the foam amount includes: The gas-liquid separation chamber is provided with a cylindrical inner wall of a cylindrical section, and the feed port is located on the inner side of the inner wall of the cylindrical section. The controller controls the angle β between the feed pipe and the tangent of the cylindrical section inner wall along the horizontal direction according to the amount of foam; the angle β satisfies: 0≤β≤arctan (R / L); wherein R is the radius of the cylindrical section inner wall, and L is the horizontal distance between the center of rotation of the feed pipe and the axis of the cylindrical section inner wall.

[0018] According to the concentration control method of some embodiments of the present application, the method in which the controller controls the angle β between the tangent line of the feeding pipe and the inner wall of the cylindrical segment along the horizontal direction according to the foam amount includes: When the foam amount is higher than or equal to a first threshold, reducing the angle β to increase the centrifugal force; When the foam amount is lower than the first threshold and higher than or equal to the second threshold, maintaining the current angle β; When the foam amount is lower than the second threshold, increasing the angle β to increase the concentration rate; The first threshold is greater than the second threshold.

[0019] According to some embodiments of the present application, the concentration control method further includes feed and discharge control and / or pressure control; The inlet and outlet control includes: monitoring the density of the material output from the gas-liquid separation chamber through a density sensor, and monitoring the liquid level of the material in the gas-liquid separation chamber through a liquid level sensor; connecting the feed pipe through a feed pipeline, connecting the discharge port of the separation device and the feed pipeline through a circulation device, and the controller controlling the circulation device to feed the material to the feed pipeline according to the liquid level, or the controller controlling the circulation device to feed the material to the discharge pipeline according to the density; The pressure control includes: monitoring the air pressure in the gas-liquid separation chamber through a pressure sensor, connecting to the separation device through a vacuum device, and the controller controlling the start and stop of the vacuum device according to the air pressure.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a partial structural diagram of a concentration device according to an embodiment of the present application; Figure 2 This is a partial structural diagram of the concentration equipment, showing the feed pipe, the horizontal cross-section of the gas-liquid separation chamber, and the adjustment mechanism; Figure 3 A schematic diagram of a feeding pipe; Figure 4 It is another state schematic diagram of the feeding pipe; Figure 5 This is a schematic diagram of the change in velocity direction of the material after it enters the gas-liquid separation chamber; Figure 6 This is a schematic diagram of the velocity components of the material after it enters the gas-liquid separation chamber; Figure 7 This is a partial structural diagram of a concentration device in another embodiment of the present application.

[0022] Reference numerals: Separation device 100; cylindrical section inner wall 110; conical section inner wall 120; connection port 130; discharge port 140; regulating air pipe 150; opening regulating valve 160; tangent line 170; Feeding device 200; Feeding pipe 210; feeding port 211; Adjustment mechanism 220; support member 221; fixing member 222; regulator 223; flexible connection cover 224; hose 225; rotation center 226; Foam detection device 300; Feeding pipeline 400; first valve 410; heating heat exchanger 420; temperature sensor 430; Feeding device 500; second valve 510; delivery pump 520; Circulation device 600; third valve 610; circulation pump 620; flow sensor 630; liquid level sensor 640; density sensor 650; temperature sensor 660; Discharge pipeline 700; fourth valve 710; Vacuum device 800; fifth valve 810; pressure sensor 820; first vacuum pump 830; second vacuum pump 840; Cooling heat exchanger 900. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the concept and technical effects of this application in conjunction with the embodiments to fully understand the purpose, features and effects of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of this application.

[0024] In the description of the embodiments of the present application, if orientation descriptions are involved, the orientations or positional relationships indicated by "up", "down", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0025] In the description of the embodiments of the present application, if a certain feature is referred to as being “set,” “fixed,” “connected,” or “installed” on another feature, it may be directly set, fixed, or connected on the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present application, if “several” is involved, it means more than one; if “multiple” is involved, it means more than two; if “greater than,” “less than,” or “exceeds” is involved, it should be understood as not including the number itself; if “above,” “below,” or “within” is involved, it should be understood as including the number itself. If “first” or “second” is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] The concentrating device of the present embodiment is provided with a movable feed pipe. During use, the material to be concentrated is fed into the gas-liquid separation chamber through the feed pipe, and the fed material is simultaneously defoamed. Furthermore, the rotation angle of the feed pipe can be adjusted based on the amount of foam monitored by a foam detection device, achieving dynamic defoaming. The following describes the embodiment in detail with reference to the accompanying drawings.

[0027] refer to Figure 1 and Figure 2 The concentration device of the embodiment of the present application includes a separation device 100, a feeding device 200, a foam detection device 300 and a controller.

[0028] The separation device 100 has a gas-liquid separation chamber for accommodating the material. The material to be concentrated is fed into the gas-liquid separation chamber for gas-liquid separation. The feeding device 200 includes a feed pipe 210. One end of the feed pipe 210 is located outside the gas-liquid separation chamber, and the other end is located within the gas-liquid separation chamber and has a feed port 211. The feed pipe 210 can deliver the material into the gas-liquid separation chamber. The feed pipe 210 is movable relative to the separation device 100. Therefore, movement of the feed pipe 210 can change the direction of the material being fed from the feed port 211.

[0029] Feeding device 200 also includes an adjustment mechanism 220 connected to feed pipe 210 and configured to rotate feed pipe 210 to adjust the horizontal feed direction of feed port 211. During the concentration process, the horizontal feed direction of the material can be adjusted by adjusting the rotation angle of feed pipe 210, thereby adjusting the tangential velocity component of the material entering the gas-liquid separation chamber. This generates an adjustable centrifugal force that suppresses foaming. This effectively eliminates foaming while feed pipe 210 feeds the gas-liquid separation chamber, preventing the introduction of other substances and thus preventing the concentrated material and the working environment within the gas-liquid separation chamber from being affected.

[0030] In the concentrating apparatus of the present embodiment, a foam detection device 300 is connected to the separation device 100 and is used to monitor the amount of foam within the gas-liquid separation chamber. A controller is communicatively connected to the feeding device 200 and the foam detection device 300. The controller controls the adjustment mechanism 220 to adjust the rotation angle of the feeding tube 210 based on feedback signals from the foam detection device 300. Therefore, the rotation angle of the feeding tube 210 can be adjusted in accordance with the amount of foam within the gas-liquid separation chamber. This allows for dynamic defoaming during the concentration process while maintaining the concentration rate, optimizing the effectiveness of foam elimination and improving production efficiency and product yield.

[0031] It can be understood that the concentration equipment of the embodiment of the present application realizes dynamic defoaming in the gas-liquid separation chamber through dynamic adjustment of the feeding device 200, the foam detection device 300 and the controller. Therefore, the rotation of the feeding pipe 210 can be adjusted according to the amount of foam, so that the material input into the gas-liquid separation chamber obtains a more suitable defoaming centrifugal force, which can also make the defoaming efficiency and the foam amount adapted to a certain extent, taking into account the foam suppression requirements and the concentration efficiency, and avoiding the disadvantages of excessive defoaming when there is less foam, which affects the concentration rate, or the defoaming rate is too low when there is more foam, resulting in foam out of control.

[0032] The separation device 100 is provided with a discharge port 140 communicating with the gas-liquid separation chamber. Thus, during the concentration process, the material can be discharged from the gas-liquid separation chamber through the discharge port 140, causing the material in the gas-liquid separation chamber to form a downward spiral flow. In some embodiments of the concentration apparatus, the inner wall of the gas-liquid separation chamber includes a cylindrical cylindrical segment inner wall 110, and the feed port 211 is located inside the cylindrical segment inner wall 110. The adjustment mechanism 220 is used to adjust the horizontal angle β between the feed pipe 210 and the tangent 170 of the cylindrical segment inner wall 110 (the tangent 170 passes through the rotation center 226 of the feed pipe 210). Adjusting the angle β can thus change the horizontal component of the material's force, thereby adjusting the effective force exerted by the material on the foam, thereby achieving efficient adjustment of the defoaming effect.

[0033] refer to Figures 3 to 6 , we can understand the relationship between the adjustment of angle β and the defoaming effect through simplified model calculation: The feeding port 211 of the feeding tube 210 is tilted downward at an angle α in the vertical direction. The angle between the tangent line 170 between the feeding tube 210 and the cylindrical segment inner wall 110 (the tangent line 170 passes through the rotation center 226 of the feeding tube 210) and the horizontal direction is β. R is the radius of the cylindrical segment inner wall 110. L is the horizontal distance between the rotation center 226 of the feeding tube 210 and the axis of the cylindrical segment inner wall 110. Reflection angle γ when the material contacts the gas-liquid separation chamber: ; The velocity of the material when it contacts the gas-liquid separation chamber is V, then the velocity component of V in the horizontal direction is ; Reflection speed = ; Component in the tangential direction of the gas-liquid separation chamber , Component in the radial direction of the gas-liquid separation chamber ; Calculate the time t for the material to rotate one circle in the gas-liquid separation chamber: ; Calculate the centrifugal force F that the material experiences when it spirals downward along the inner wall 110 of the cylindrical section of the gas-liquid separation chamber: ; m is the material mass.

[0034] From the above calculations, we can see that the centrifugal force F is related to Nothing to do with The angle β is related to the material's centrifugal force F as it spirals downward along the inner wall 110 of the cylindrical section of the gas-liquid separation chamber. Specifically, the smaller β is, the greater the centrifugal force F it experiences as the material spirals downward along the inner wall 110 of the cylindrical section of the gas-liquid separation chamber, the better the foaming suppression effect, and the greater the impact on the concentration rate. The larger β is, the smaller the centrifugal force F it experiences as the material spirals downward along the inner wall 110 of the cylindrical section of the gas-liquid separation chamber, the worse the foaming suppression effect, and the smaller the impact on the concentration rate. Therefore, adjusting the angle β according to the foaming situation of the material can achieve efficient defoaming.

[0035] In some embodiments of the concentrating apparatus, angle β satisfies the following relationship: 0 ≤ β ≤ arctan (R / L), where R is the radius of the cylindrical inner wall 110, and L is the horizontal distance between the rotation center 226 of the feed tube 210 and the axis of the cylindrical inner wall 110. Thus, the adjustment range of angle β varies depending on the size of the gas-liquid separation chamber. Within this adjustment range, an appropriate centrifugal force can be provided to effectively defoam, balancing foam suppression requirements and concentration efficiency. The angle β can be adjusted within this range based on the foaming conditions, avoiding the drawbacks of an excessively small angle β, which may lead to excessive defoaming and affect the concentration rate, or an excessively large angle β, which may lead to a low defoaming rate when foam is abundant and cause uncontrolled foaming.

[0036] Therefore, the concentration equipment uses the centrifugal force F exerted on the material input by the feed pipe 210 when it moves spirally downward along the inner wall 110 of the cylindrical section of the gas-liquid separation chamber to effectively defoam, forming a centrifugal force foam suppression concentration equipment. When in use, the feed pipe 210 can be driven to rotate according to the foaming situation during material concentration to generate appropriate centrifugal force to suppress foaming, reduce the impact on the concentration rate, and help improve production efficiency and product yield.

[0037] In some embodiments of the concentrating apparatus, the foam detection device 300 may be a contact electrode, with a contact end located within the gas-liquid separation chamber and triggered when contacted by foam. A contact electrode may be positioned above the gas-liquid separation chamber. When foam rises to trigger the contact electrode, it is determined that the foam volume has reached a preset value. The controller then adjusts the feed pipe 210 to eliminate foam based on the triggering feedback from the contact electrode.

[0038] Alternatively, in some embodiments, two contact electrodes at different heights may be provided in the concentration device to form a contact electrode group for determining the foaming state. For example, if both contact electrodes at different installation heights are not triggered, there is no foaming or the amount of foaming is small, and the angle β is increased to reduce the centrifugal force and its effect on evaporation until the angle β reaches its maximum value; if both contact electrodes at different installation heights are triggered in a short period of time, it indicates that the gas-liquid separation chamber is rapidly foaming and growing, and the angle β is decreased to increase the centrifugal force and improve the defoaming ability; if both contact electrodes at different installation heights are deactivated in a short period of time, it indicates that the foaming is being rapidly deactivated, and the angle β is increased to reduce the centrifugal force and its effect on evaporation; if the contact electrode at the lower installation position is triggered, and the contact electrode at the higher installation position is not triggered or is deactivated, it indicates that the foaming and evaporation concentration are in a balanced state, and there is no need to adjust the current angle β.

[0039] In some embodiments of the concentration device, the foam detection device 300 can also be a machine vision judgment device that uses machine vision to judge the foaming state. For example: if no foam feature is identified in the photo taken by the machine vision, there is no foaming, and the angle β is increased to reduce the centrifugal force and its effect on evaporation until the angle β reaches its maximum value; if a foam feature is identified in the photo taken by the machine vision, and the foam feature size is larger in the subsequent photo, according to the principle that the farther the foam is, the smaller it is, and the closer the foam is, then it indicates that the foam is rapidly growing and growing, and the angle β is decreased to increase the centrifugal force to improve the defoaming ability; if a foam feature is identified in the photo taken by the machine vision, and the foam feature size is smaller in the subsequent photo, according to the principle that the farther the foam is, the smaller it is, and the closer the foam is, then it indicates that the foam is rapidly defoaming, and the angle β is increased to reduce the centrifugal force and its effect on evaporation; if a foam feature is identified in the photo taken by the machine vision, and the foam feature size does not change significantly in the subsequent photo, then the foaming and evaporation concentration are in a balanced state, and the angle β does not need to be adjusted.

[0040] refer to Figure 1 In some embodiments of the concentration equipment, the feed pipe 210 is arranged to be tilted downward from the outside to the inside of the gas-liquid separation chamber, forming a method of tilting the material downward, which can impact the foam to a certain extent. Combined with the rotation of the feed pipe 210, the defoaming efficiency can be improved.

[0041] refer to Figure 1 In some embodiments of the concentrating device, the feed pipe 210 forms an angle α with the horizontal direction, and the angle α satisfies: ; Wherein, R is the radius of the inner wall 110 of the cylindrical section, and t is the time it takes for the material to rotate one circle in the gas-liquid separation chamber; V V It is the velocity component in the vertical direction of the velocity V when the material enters the gas-liquid separation chamber, ; g is the acceleration due to gravity.

[0042] According to the different sizes of the gas-liquid separation chamber, limiting the angle α within this range can effectively prevent the material from colliding with the newly entered material after rotating one circle in the gas-liquid separation chamber, thereby affecting its movement state.

[0043] refer to Figure 1 In some embodiments, the inner wall of the gas-liquid separation chamber also includes a conical cone section inner wall 120. The cone section inner wall 120 is connected to the bottom of the cylindrical section inner wall 110 and the radius decreases downward. The discharge port 140 is arranged at the lower part of the cone section inner wall 120. In this way, it can be ensured that the centrifugal force exerted on the material during the spiral downward movement will not be significantly reduced, thereby preventing the device from losing the ability to suppress foaming.

[0044] Specifically, calculate the centrifugal force F that the material experiences when it moves spirally downward along the inner wall 120 of the conical section of the gas-liquid separation chamber. : ; m is the material mass; V r V is the velocity of the gas-liquid separation chamber in the tangential direction when the gas-liquid separation chamber moves downward in a spiral along the conical inner wall 120 of the gas-liquid separation chamber. 22 The real-time speed is constantly decreasing; r is the radius of the inner wall 120 of the conical section of the gas-liquid separation chamber, and r decreases or gradually decreases downward.

[0045] It can be seen that when the material moves downward in a spiral along the inner wall 120 of the conical section of the gas-liquid separation chamber, V r When the material moves downward along the inner wall 110 of the cylindrical section of the gas-liquid separation chamber, the centrifugal force F is reduced. It will not decrease significantly faster than F, so the separation device 100 will not lose the ability to suppress foaming.

[0046] refer to Figure 2 In some embodiments, the feeding device 200 further includes a flexible connection cover 224. The separation device 100 is provided with a connection port 130 connected to the gas-liquid separation chamber. The connection port 130 can be opened on the inner wall 110 of the cylindrical section of the gas-liquid separation chamber. One end of the flexible connection cover 224 is sealedly connected to the connection port 130. The feeding pipe 210 is passed through the flexible connection cover 224 to extend into the interior of the separation device 100. The other end of the flexible connection cover 224 is sealedly connected to the outer wall of the feeding pipe 210. The flexible connection cover 224 can be deformed as the feeding pipe 210 rotates, thereby forming a soft connection so that the feeding pipe 210 can move relative to the separation device 100 while avoiding affecting the seal.

[0047] The flexible connection cover 224 can adopt a variety of structures. The embodiments of the present application do not limit the type and connection method of the flexible connection cover 224. For example, the flexible connection cover 224 can be a metal corrugated sealing sleeve, which can be connected to the connection port 130 of the separation device 100 and the feed pipe 210 by gluing or welding; or the flexible connection cover 224 can also be a plastic sleeve, which can be connected to the connection port 130 of the separation device 100 and the feed pipe 210 by gluing or other methods. A section of connecting pipe can be provided on the wall of the separation device 100, and the connecting pipe protrudes outwardly from the outer wall of the separation device 100 in the radial direction of the separation device 100. The pipe mouth of the connecting pipe forms the connection port 130. The periphery of the connection port 130 can be connected to a flange connection plate. The flexible connection cover 224 can be connected to the flange connection plate, thereby realizing the connection between the flexible connection cover 224 and the separation device 100.

[0048] refer to Figure 2 In some embodiments, the size of the connection port 130 is larger than the outer diameter of the feed tube 210. The feed tube 210 can be connected and supported by an adjustment mechanism 220 located outside the separation device 100, allowing the feed tube 210 to be suspended within the connection port 130, leaving room for the feed tube 210 to move. For example, when the connection port 130 is a circular hole, the diameter of the connection port 130 is larger than the outer diameter of the feed tube 210; or, when the connection port 130 is a regular or irregular polygon, the size of the connection port 130, at least in the horizontal direction, is larger than the outer diameter of the feed tube 210.

[0049] There can be many ways to movably connect the feed pipe 210 and the separation device 100, as long as the rotation of the feed pipe 210 and the sealing of the feed pipe 210 and the separation device 100 are satisfied. For example, the feed pipe 210 and the separation device 100 can also be movably connected in a way that a connecting port 130 communicating with the gas-liquid separation chamber is provided in the separation device 100, and a soft sealing ring can be fixedly connected to the inner wall of the connecting port 130 by gluing, extrusion, etc. The feed pipe 210 is passed through the sealing ring, and the inner ring of the sealing ring and the outer wall of the feed pipe 210 can be sealed by gluing, extrusion, etc., so that the outer wall of the feed pipe 210 and the inner wall of the connecting port 130 are flexibly connected and sealed by the soft sealing ring. The formation of a soft connection allows the feed pipe 210 to move relative to the separation device 100 while avoiding affecting the sealing.

[0050] refer to Figure 1 In some embodiments, the feeding device 200 may further include a hose 225, which is connected to the portion of the feeding pipe 210 located outside the separation device 100, for example, connected to the end of the feeding pipe 210 facing away from the feeding port 211, to achieve flexible connection and sealing when the feeding pipe 210 is adjusted. The feeding pipe 210 is connected to the feeding pipeline 400 through the hose 225, so that material can be transported to the feeding pipe 210.

[0051] In some embodiments, the adjustment mechanism 220 may include a support member 221, a fixing member 222 and a regulator 223. The support member 221 and the fixing member 222 are fixed to the outer wall of the separation device 100. The feed tube 210 is rotatably connected to the support member 221. The regulator 223 is installed on the fixing member 222. The regulator 223 is connected to the feed tube 210 and is communicatively connected to the controller. The first position on the feed tube 210 for connecting the regulator 223 and the second position for connecting the support member 221 are spaced apart along the extension direction of the feed tube 210. For example, the first position is located between the second position and the outer wall of the separation device 100, or the first position is located on the side of the second position away from the separation device 100. Thus, the support member 221 and the regulator 223 can support the feed tube 210 outside the separation device 100, so that the feed tube 210 can be suspended in the connection port 130, leaving space for the feed tube 210 to move. The regulator 223 is used to drive the feeding pipe 210 to rotate relative to the support member 221, thereby changing the feeding direction of the feeding port 211 in the gas-liquid separation chamber.

[0052] The embodiment of the present application does not limit the specific structural form of the regulator 223, as long as it can drive the feeding tube 210 to rotate around the connection point where it is rotatably connected to the support member 221 (that is, the rotation center 226 of the feeding tube 210).

[0053] As an example, see Figure 2 The regulator 223 can be a telescopic adjustment component such as a telescopic cylinder. One end of the regulator 223 is connected to the part of the feed pipe 210 located outside the separation device 100, and the other end is connected to the fixed part 222 through a rotating pair. Therefore, when the regulator 223 is extended or retracted, the feed pipe 210 can be driven to rotate around the connection point where it is rotatably connected to the support part 221 (that is, the rotation center 226 of the feed pipe 210), thereby changing the feeding direction of the feed port 211 in the gas-liquid separation chamber, for example, changing the angle β of the feed pipe 210.

[0054] In other examples, the regulator 223 may be a rotating regulating mechanism 220 such as a motor, and the regulator 223 may be connected to the portion of the feed tube 210 located outside the separation device 100 through a transmission mechanism. For example, the transmission mechanism may be a rack and pinion mechanism, and the output end of the regulator 223 is connected to the gear to drive the rack meshed with the gear to move, and the rack is connected to the feed tube 210, thereby driving the feed tube 210 to rotate around the connection point where it is rotatably connected to the support member 221 (i.e., the center of rotation 226 of the feed tube 210); or, the transmission mechanism may be a synchronous pulley mechanism, wherein two synchronous pulleys are fixed to the separation device 100, and a synchronous belt is wound around the synchronous pulleys. The output end of the regulator 223 is connected to one of the two synchronous pulleys, driving the synchronous belt wound around the synchronous pulleys to rotate, and the synchronous belt is connected to the feed tube 210 through a connector, so that the synchronous belt can drive the feed tube 210 to rotate around the connection point where it is rotatably connected to the support member 221 (i.e., the center of rotation 226 of the feed tube 210).

[0055] refer to Figure 7 In some embodiments, the concentration apparatus further includes a feed line 400, which is connected to the feed device 200 of the concentration apparatus and is configured to input material into the feed pipe 210. The feed line 400 may include a first valve 410, and the controller may be communicatively connected to the first valve 410 of the feed line 400 to control the on / off state of the feed line 400.

[0056] refer to Figure 7 In some embodiments, the feeding pipeline 400 may further include a heating heat exchanger 420 for heating the material before feeding it into the feeding pipe 210. The controller may be communicatively connected to the heating heat exchanger 420 to control the heating temperature and / or duration of the material.

[0057] refer to Figure 7 In some embodiments, the feeding pipeline 400 may further include a temperature sensor 430 disposed on one side of the output end of the heating heat exchanger 420 for monitoring the temperature of the material output through the heating heat exchanger 420. The temperature sensor 430 may be communicatively connected to a controller, and the controller may control the heating temperature and / or heating duration of the material based on the temperature detected by the temperature sensor 430.

[0058] refer to Figure 7 In some embodiments, the concentration apparatus further includes a feeding device 500, which is connected to the feeding pipeline 400 and is used to deliver external materials to the feeding pipeline 400. The controller is communicatively connected to the feeding device 500 and is used to control the feeding of the feeding device 500 according to the concentration process and / or defoaming requirements.

[0059] refer to Figure 7In some embodiments, the feeding device 500 may include a delivery pump 520 and a second valve 510, and the controller is communicatively connected to the feeding pump and the second valve 510, and is used to control the start and stop of the delivery pump 520 and / or the opening and closing of the second valve 510 according to the concentration process and / or defoaming requirements.

[0060] refer to Figure 7 In some embodiments, the concentration apparatus further includes a circulation device 600 and a discharge pipeline 700. The circulation device 600 is connected to the discharge port 140 of the separation device 100 and the feed pipeline 400, and the discharge pipeline 700 is connected to the circulation device 600. The circulation device 600 is used to return the material output from the discharge port 140 to the feed device 200 or to the discharge pipeline 700. The controller is communicatively connected to the circulation device 600 and is used to control the circulation device 600 to feed the material to the feed pipeline 400 and discharge the material to the discharge pipeline 700 based on the concentration process, defoaming requirements, and the density of the material output from the discharge port 140.

[0061] refer to Figure 7 In some embodiments, the circulation device 600 may include a circulation pump 620 and a third valve 610, and the discharge pipeline 700 may include a fourth valve 710. The controller is communicatively connected to the circulation pump 620, the third valve 610, and the fourth valve 710 to control the feeding and discharging of the circulation device 600 based on the concentration process, defoaming requirements, and the density of the material output from the discharge port 140. The circulation device 600 may also include a flow sensor 630 disposed on one side of the output end of the circulation pump 620. The flow sensor 630 is communicatively connected to the controller, and the controller may control the speed of the circulation pump 620 based on the flow rate detected by the flow sensor 630.

[0062] refer to Figure 7 In some embodiments, the circulation device 600 may further include a density sensor 650 disposed between the input end of the circulation pump 620 and the discharge port 140 to detect the density of the material discharged from the discharge port 140. The circulation device 600 may further include a liquid level sensor 640 disposed between the input end of the circulation pump 620 and the discharge port 140 to detect the liquid level in the pipeline below the discharge port 140. The circulation device 600 may further include a discharge temperature sensor 660 disposed between the input end of the circulation pump 620 and the discharge port 140 to detect the temperature of the material discharged from the pipeline below the discharge port 140.

[0063] refer to Figure 7In some embodiments, the concentration device further includes a vacuum device 800, which is connected to the separation device 100 and is used to adjust the air pressure environment in the gas-liquid separation chamber. The controller is communicatively connected to the vacuum device 800 and is used to control the start and stop of the vacuum device 800 according to the air pressure in the gas-liquid separation chamber. The vacuum device 800 may also include a pressure sensor 820, the entirety or the detection end of the pressure sensor 820 is located in the gas-liquid separation chamber and is used to detect the air pressure in the separation chamber. The controller is communicatively connected to the pressure sensor 820 and controls the start and stop of the vacuum device 800 according to the air pressure detected by the pressure sensor 820.

[0064] refer to Figure 7 In some embodiments, the vacuum pump can be divided into two parts: a first vacuum pump 830 and a second vacuum pump 840. A cooling heat exchanger 900 is connected between the first vacuum pump 830 and the gas-liquid separation chamber. A controller is communicatively connected to the first vacuum pump 830 and the cooling heat exchanger 900 and is used to control the first vacuum pump 830 to extract steam from the gas-liquid separation chamber. The steam extracted from the gas-liquid separation chamber is condensed and discharged through the cooling heat exchanger 900. The second vacuum pump 840 is connected to the gas-liquid separation chamber and is communicatively connected to the controller. A fifth valve 810 is provided between the second vacuum pump 840 and the gas-liquid separation chamber. The controller is used to control the start and stop of the second vacuum pump 840 and the fifth valve 810 based on the air pressure detected by the pressure sensor 820 to maintain the air pressure in the gas-liquid separation chamber at a set value.

[0065] refer to Figure 7 In some embodiments, the gas-liquid separation chamber can also be connected to a regulating air pipe 150, which connects the gas-liquid separation chamber and an external gas source or outside air. An opening regulating valve 160 is provided on the regulating air pipe 150, and the controller is communicated with the opening regulating valve 160 to control the start and stop of the second vacuum pump 840 and / or the opening regulating valve 160 according to the air pressure detected by the pressure sensor 820, so as to keep the air pressure in the gas-liquid separation chamber at the set value.

[0066] refer to Figure 7 In some embodiments, the concentration device includes the aforementioned feed line 400, feed device 500, circulation device 600, and discharge line 700. A controller is communicatively connected to the aforementioned devices to control their operating states. The following is an example of a process for material concentration according to some embodiments of the present application: Start the concentration process and initialize all valves to the closed state; Open the first valve 410 and the third valve 610, start the vacuum pump to pump the system vacuum to the set value of the pressure sensor 820; Open the second valve 510 and start the delivery pump 520 to add water (water is used as an example, but it can be alcohol or other liquids that are the same as the solvent of the material to be concentrated) to the gas-liquid separation chamber until the liquid level sensor 640 reaches the set value. Close the second valve 510 and the delivery pump 520; Start the circulation pump 620 and the third valve 610, and adjust the speed of the circulation pump 620 so that the flow sensor 630 reaches the set value, so that the material passes through the third valve 610 at a stable flow rate; The heating heat exchanger 420 is started and the heating amount is adjusted to heat the water until the temperature sensor 430 reaches the set value. The heating amount is then maintained to maintain a stable temperature. The heated water is sprayed into the gas-liquid separation chamber through the hose 225 and the feed pipe 210 to evaporate. The water vapor is then drawn into the cooling heat exchanger 900, condensed into liquid water, and discharged. Open the fifth valve 810, start the second vacuum pump 840 according to the feedback from the pressure sensor 820, and adjust the opening of the regulating valve 160 to maintain the vacuum level in the gas-liquid separation chamber within the set range; When the concentration process is stable, open the second valve 510 and start the delivery pump 520 to add material to the device for concentration until the density sensor 650 reaches the set value. The concentration is completed, and the third valve 610, circulation pump 620 and fourth valve 710 are opened to take out the concentrate from the discharge pipeline 700.

[0067] During the concentration process, the horizontal angle β of the feed pipe 210 entering the gas-liquid separation chamber can be adjusted according to the foaming conditions during the material concentration process.

[0068] The present application also provides a concentration control method, using any of the above-mentioned concentration devices (refer to Figures 1 to 7 ), concentration control methods include: The material is fed into the gas-liquid separation chamber through the feeding pipe 210 for gas-liquid separation; The foam amount in the gas-liquid separation chamber is monitored by the foam detection device 300; The controller controls the rotation angle of the feeding pipe 210 according to the amount of foam, so as to adjust the velocity component of the material entering the gas-liquid separation chamber along the tangential direction of the material rotation path.

[0069] The above-mentioned concentration equipment is used for gas-liquid separation and concentration. By detecting the amount of foam and adjusting the rotation angle of the feed pipe 210, the velocity component of the material entering the gas-liquid separation chamber along the tangential direction of the material rotation path is automatically and in real time adjusted, thereby achieving dynamic defoaming during the concentration process, optimizing the foam elimination effect, and helping to improve production efficiency and product yield.

[0070] In some embodiments of the concentration control method, the method in which the controller controls the rotation angle of the feeding pipe 210 according to the amount of foam includes: A gas-liquid separation chamber having a cylindrical inner wall 110 is used, and the feed port 211 is located on the inner side of the cylindrical inner wall 110. The controller controls the angle β between the feed pipe 210 and the tangent 170 of the cylindrical inner wall 110 along the horizontal direction according to the amount of foam; the angle β satisfies: 0≤β≤arctan (R / L); wherein R is the radius of the cylindrical inner wall 110, and L is the horizontal distance between the rotation center 226 of the feed pipe 210 and the axis of the cylindrical inner wall 110.

[0071] In some embodiments of the concentration control method, the controller controls the angle β between the feeding pipe 210 and the tangent line 170 of the cylindrical segment inner wall 110 along the horizontal direction according to the foam amount, including: When the amount of foam is higher than or equal to a first threshold, the angle β is reduced to increase the centrifugal force; When the foam amount is lower than the first threshold and higher than or equal to the second threshold, the current angle β is maintained; When the foam amount is lower than the second threshold, the angle β is increased to increase the concentration rate; The first threshold is greater than the second threshold.

[0072] In some embodiments of the concentration control method, the foam amount can be detected by two contact electrodes installed at different heights. When the two contact electrodes installed at different heights are triggered, it indicates that the foam amount has reached a first threshold value. When the contact electrode installed at a low position is triggered and the contact electrode installed at a high position is not triggered, it indicates that the foam amount has reached a second threshold value but has not reached the first threshold value. When both the contact electrodes installed at high and low positions are not triggered, it indicates that the foam amount has not reached the second threshold value. Thus, a contact electrode group is formed to judge the foaming state. For example: if the two contact electrodes installed at different heights are not triggered, there is no foaming or the amount of foaming is small, then the angle β is increased to reduce the centrifugal force and its influence on evaporation until the angle β reaches the maximum value; if the contact electrodes installed at different heights are all triggered in a short period of time, it means that the gas-liquid separation chamber is rapidly foaming and growing, then the angle β is reduced, the centrifugal force is increased to improve the defoaming ability; if the contact electrodes installed at different heights are all detached from the trigger in a short period of time, it means that rapid defoaming is in progress, then the angle β is increased to reduce the centrifugal force and its influence on evaporation; if the contact electrode installed at a low position is triggered, and the contact electrode installed at a high position is not triggered or is detached from the trigger, then the foaming and evaporation concentration are in a balanced state, and there is no need to adjust the angle β.

[0073] In some embodiments of the concentration control method, a foam detection device 300 can also monitor changes in the amount of foam, and the controller can control the operation of the feeding tube 210 based on the changes in the amount of foam. For example, the foam detection device 300 can also be a machine vision judgment device that uses machine vision to take pictures at set intervals and compare them to determine the foaming status. For example: if no foam feature is identified in the photo taken by machine vision, it means that the amount of foam is small or no foam is generated, then the angle β should be increased to reduce the centrifugal force and its influence on evaporation until the angle β reaches its maximum value; if foam feature is identified in the photo taken by machine vision, and the foam feature size is larger in the photo taken later, according to the principle of small at a distance and large near, it means that the foam is rapidly generated and growing, then the angle β should be reduced, the centrifugal force should be increased to improve the defoaming ability; if foam feature is identified in the photo taken by machine vision, and the foam feature size is smaller in the photo taken later, according to the principle of small at a distance and large near, it means that the foam is rapidly defoaming, then the angle β should be increased to reduce the centrifugal force and its influence on evaporation; if foam feature is identified in the photo taken by machine vision, and the foam feature size does not change significantly in the photo taken later, then the foaming and evaporation concentration are in equilibrium, and there is no need to adjust the angle β.

[0074] In some embodiments of the concentration control method, the controller can also calculate the required rotation angle of the feed tube 210 based on the amount of foam, determine the target horizontal rotation angle of the feed tube 210 relative to the tangent line 170 of the cylindrical segment inner wall 110, and control the rotation of the feed tube 210. The determination of the amount of foam can be similar to the above method, except that the controller's calculation software calculates the current required rotation angle of the feed tube 210. The rotation angle of the feed tube 210 can be fed back via an angle sensor.

[0075] In some embodiments, the concentration control method further includes material inlet and outlet control and / or pressure control; The material inlet and outlet control includes: monitoring the density of the material output from the gas-liquid separation chamber through the density sensor 650, and monitoring the liquid level of the material in the gas-liquid separation chamber through the liquid level sensor 640; connecting the feed pipe 210 through the feed pipe 400, and connecting the discharge port 140 and the feed pipe 400 through the circulation device 600, and the controller controls the circulation device 600 to feed the material to the feed pipe 400 according to the liquid level monitored by the liquid level sensor 640, or controls the circulation device 600 to feed the material to the discharge pipe 700 according to the density monitored by the density sensor 650; The pressure control includes: monitoring the air pressure in the gas-liquid separation chamber through a pressure sensor, connecting the vacuum device 800 to the separation device 100, and controlling the start and stop of the vacuum device 800 according to the air pressure by a controller.

[0076] The concentration equipment and concentration control method of the embodiments of the present application effectively solve the deficiencies of the defoaming measures adopted in related technologies, such as: The water spray defoaming method sprays water into the gas-liquid separation chamber to destroy the foam stability through the impact force, dilution effect or temperature change of water. The water spray defoaming will reduce the temperature in the gas-liquid separation chamber, making the material temperature lower than the boiling point of the material under the pressure in the equipment, changing the reaction conditions in the gas-liquid separation chamber, and easily causing the evaporation and concentration process to stop; Gas defoaming method, which introduces air / compressed air into the gas-liquid separation chamber to break the foam. This method will increase the air pressure in the gas-liquid separation chamber and increase the boiling point of the material. This will make the boiling point of the material under the air pressure in the gas-liquid separation chamber higher than the material temperature, causing the evaporation and concentration process to stop; The defoaming agent method, which adds a defoaming agent to the material to be concentrated, can effectively suppress the generation of foam. However, the addition of a defoaming agent also introduces unnecessary additives into the material, which poses a risk of product material contamination and may have uncertain effects on the drug. Light source defoaming method: Irradiating specific light into the gas-liquid separation chamber can destroy the material properties by absorbing the energy carried by photons, which may cause various uncertain effects on the properties of the material. For example, heat-sensitive components in traditional Chinese medicine and active substances in biopharmaceuticals may be inactivated and denatured.

[0077] Tangential nozzle defoaming method: Existing equipment passes the material through a heater and then feeds it into the gas-liquid separation chamber through the side wall at a fixed tangential angle. This method has a certain defoaming effect, but the defoaming principle is not fully explained or fully understood. In fact, the defoaming principle of the centrifugal force generated by the tangential velocity component of the material moving along the inner wall of the gas-liquid separation chamber has two aspects. On the one hand, the centrifugal force can crush the bubbles, allowing the water vapor within the bubbles to separate normally from the gas and liquid and be drawn out of the gas-liquid separation chamber (for example, entering the condensation chamber), achieving material concentration. On the other hand, the centrifugal force does not crush the bubbles, but only inhibits their further expansion or even compresses them. In this case, the water vapor within the bubbles cannot be drawn out, and thus normal gas-liquid separation cannot be achieved. In this case, the material is not concentrated, thereby affecting the concentration efficiency. Therefore, when the tangential nozzle defoaming method used in existing equipment is specifically applied in the concentration process, the centrifugal force generated by the tangential velocity component of the material moving along the inner wall of the gas-liquid separation chamber can crush some bubbles. Although this can achieve a certain defoaming effect, some bubbles are not crushed by the centrifugal force. During this process, the centrifugal force generated by the above-mentioned feeding method inhibits the further expansion of the bubbles or compresses the bubbles. The water vapor within these bubbles cannot undergo normal gas-liquid separation, and the material is not concentrated, which will affect the material concentration efficiency. Therefore, while the above-mentioned feeding method can achieve a certain defoaming effect, it also has an adverse effect on the concentration efficiency. In addition, it is understandable that different traditional Chinese medicines have different foaming properties. For example, extracts of Isatis indigotica and rose flowers are not easy to foam when concentrated, while extracts of Kochia scoparia and Achyranthes bidentata are easy to foam when concentrated. The foaming properties of the same traditional Chinese medicine also vary at different stages of concentration (for example, when concentrated to different concentrations). For example, the low-density Chaiqinning granule extract foams less when concentrated. As the concentration progresses, the density of the Chaiqinning granule concentrate increases, and the concentration process becomes more prone to foaming. During the concentration process, however, inappropriate centrifugal force can affect the concentration efficiency of materials that are not prone to foaming or are in the stage where they are not prone to foaming. Similarly, inappropriate centrifugal force cannot effectively defoam materials that are prone to foaming or are in the stage where they are prone to foaming. Therefore, the above method cannot adapt to the defoaming requirements of different traditional Chinese medicines and the varying concentration processes, and also affects the concentration efficiency.

[0078] The defoaming measures adopted in the above-mentioned related technologies have not fundamentally solved the problem. The water spray defoaming method and the gas defoaming method can easily change the environment in the gas-liquid separation chamber, causing the concentration equipment to stop. Once the equipment resumes evaporation and concentration, the foaming will also resume; the defoaming agent method and the light source defoaming method have the risk of contaminating or destroying the material components; the tangential nozzle defoaming method has a fixed tangential angle entering the gas-liquid separation chamber, and cannot generate different centrifugal forces according to the concentrated Chinese medicine varieties and concentration stages to dynamically defoam while maintaining appropriate concentration efficiency.

[0079] In comparison, the solution of the embodiment of the present application performs defoaming by inputting the material itself into the gas-liquid separation chamber, which will not change the material temperature and the environment inside the equipment. It can perform defoaming without interrupting the evaporation and concentration process, affecting the material properties, and introducing other substances. It realizes dynamic defoaming more directly and efficiently, effectively solves the above-mentioned shortcomings, optimizes the foam elimination effect, and is conducive to improving production efficiency and product yield.

[0080] The controller's control processes and methods are readily implementable by those skilled in the art. For example, a controller can be a PLC (Programmable Logic Controller), a single-chip microcomputer, a time-controlled switch, or a microprocessor terminal. It internally stores instructions for executing logical operations, sequential control, timing, counting, and arithmetic calculations, and controls various types of mechanical equipment or production processes through digital or analog input and output. It can implement operational control of various devices, valves, and other components through pre-set schemes, ensuring orderly operation of the equipment. The controller can also collect and process data from sensors and instruments within the system, providing feedback on system operating status and a basis for system regulation. Controlling the various devices, valves, and other components of the concentration equipment of the present application using a controller is readily implementable by those skilled in the art based on commonly used controllers and computational methods in industrial production, and will not be elaborated upon here.

[0081] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. Concentration equipment, characterized in that include: A separation device having a gas-liquid separation chamber for accommodating materials; A feeding device, comprising a feeding pipe and an adjusting mechanism, wherein one end of the feeding pipe is located outside the gas-liquid separation chamber, and the other end is located inside the gas-liquid separation chamber and has a feeding port; The feeding pipe is movably arranged relative to the separating device, and the adjusting mechanism is connected to the feeding pipe and is used to drive the feeding pipe to rotate so as to adjust the feeding direction of the feeding port along the horizontal direction; a foam detection device, connected to the separation device, for monitoring the amount of foam in the gas-liquid separation chamber; A controller is communicatively connected to the feeding device and the foam detection device, and is used to control the adjustment mechanism to adjust the rotation angle of the feeding tube according to a feedback signal from the foam detection device.

2. The concentration device according to claim 1, characterized in that The inner wall of the gas-liquid separation chamber includes a cylindrical inner wall of a cylindrical section, the feed port is located on the inner side of the inner wall of the cylindrical section, and the adjustment mechanism is used to adjust the angle β of the tangent between the feed pipe and the inner wall of the cylindrical section along the horizontal direction, and the tangent passes through the center of rotation of the feed pipe.

3. The concentration device according to claim 2, characterized in that The angle β satisfies: 0≤β≤arctan(R / L); Among them, R is the radius of the inner wall of the cylindrical section, and L is the horizontal distance between the rotation center of the feeding tube and the axis of the inner wall of the cylindrical section.

4. The concentration device according to claim 2, characterized in that The feed pipe is arranged to be tilted downward from the outside to the inside of the gas-liquid separation chamber; the feed pipe forms an angle α with the horizontal direction, and the angle α satisfies: ; Wherein, R is the radius of the inner wall of the cylindrical segment, and t is the time it takes for the material to rotate one circle in the gas-liquid separation chamber; V V is the velocity component in the vertical direction of the velocity V when the material enters the gas-liquid separation chamber, ; g is the acceleration due to gravity.

5. The concentration device according to claim 2, characterized in that The inner wall of the gas-liquid separation chamber also includes a conical cone section inner wall, which is connected to the bottom of the cylindrical section inner wall and has a radius decreasing downward; the separation device is provided with a discharge port connected to the gas-liquid separation chamber, and the discharge port is provided at the lower part of the cone section inner wall.

6. The concentration device according to claim 1, characterized in that The feeding device further includes a flexible connection cover, the separation device is provided with a connection port communicating with the gas-liquid separation chamber, one end of the flexible connection cover is sealedly connected to the connection port, the feeding pipe is passed through the flexible connection cover to extend into the interior of the separation device, the other end of the flexible connection cover is sealedly connected to the outer wall of the feeding pipe, and the flexible connection cover deforms as the feeding pipe rotates; And / or, the feeding device further comprises a hose, the hose being connected to a portion of the feeding pipe located outside the separation device, and the feeding pipe being connected to a feeding pipeline via the hose.

7. The concentration device according to claim 1, characterized in that The adjustment mechanism includes a support member, a fixing member and an adjuster, the support member and the fixing member are fixed to the outer wall of the separation device, the feed pipe is rotatably connected to the support member, the adjuster is installed on the fixing member, the adjuster is connected to the feed pipe and is communicatively connected to the controller, and the adjuster is used to drive the feed pipe to rotate relative to the support member.

8. A concentration control method, characterized in that: Using the concentrating device according to any one of claims 1 to 7, the method comprises: The material is fed into the gas-liquid separation chamber through the feeding pipe for gas-liquid separation; monitoring the amount of foam in the gas-liquid separation chamber by a foam detection device; The controller controls the rotation angle of the feeding pipe according to the foam amount to adjust the velocity component of the material entering the gas-liquid separation chamber along the tangential direction of the material rotation path.

9. The concentration control method according to claim 8, characterized in that: The method in which the controller controls the rotation angle of the feeding pipe according to the foam amount includes: The gas-liquid separation chamber is provided with a cylindrical inner wall of a cylindrical section, and the feed port is located on the inner side of the inner wall of the cylindrical section. The controller controls the angle β between the feed pipe and the tangent of the cylindrical section inner wall along the horizontal direction according to the amount of foam; the angle β satisfies: 0≤β≤arctan (R / L); wherein R is the radius of the cylindrical section inner wall, and L is the horizontal distance between the center of rotation of the feed pipe and the axis of the cylindrical section inner wall.

10. The concentration control method according to claim 9, characterized in that: The method for the controller to control the angle β of the tangent line between the feeding pipe and the inner wall of the cylindrical segment along the horizontal direction according to the foam amount includes: When the foam amount is higher than or equal to a first threshold, reducing the angle β to increase the centrifugal force; When the foam amount is lower than the first threshold and higher than or equal to the second threshold, maintaining the current angle β; When the foam amount is lower than the second threshold, increasing the angle β to increase the concentration rate; The first threshold is greater than the second threshold.

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