A concentrated purification device for the medicinal herb of centipeda minima

Abstract

The application discloses a concentrated purification device for a hundred-rib grass medicine, which comprises a concentration tank, a impeller mechanism is connected to the flange of the concentration tank, a connecting shaft is fixed to the impeller mechanism in the axial direction, a transmission mechanism is arranged at the other end of the connecting shaft, a speed regulating mechanism is driven by the transmission mechanism, the speed regulating mechanism comprises a speed regulating execution mechanism and a speed regulating power mechanism, wherein the speed regulating execution mechanism is driven by the transmission mechanism to complete the rotating action, the speed adjustment of the speed regulating execution mechanism is realized by the speed regulating power mechanism, a stirring paddle is fixedly connected to the speed regulating execution mechanism, the flow force of steam is used to drive the rotation of the impeller body of the impeller mechanism, the rotating force of the impeller body is transmitted to the stirring paddle through the transmission mechanism and the speed regulating mechanism, so that the stirring paddle does not need to be configured with power equipment, the power consumption is reduced, meanwhile, the radial length of the expansion gear assembly is changed by using the steam pressure change to push the oil body in the channel to move, then the rotating speed of the stirring paddle fixed to the base is adjusted, and the flow rate of the steam is balanced.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine extraction technology, specifically to a device for concentrating and purifying Centella asiatica for medicinal use. Background Technology

[0002] Centella asiatica is the whole herb of Centella asiatica, a plant in the Santalaceae family. It was first recorded in the "Illustrated Materia Medica" and has the effects of "clearing heat and detoxifying", "unblocking qi and blood vessels", and "regulating qi". Centella asiatica contains a variety of chemical components such as flavonoids, organic acids, alkaloids, sterols, phenols, and volatile oils. Modern research shows that Centella asiatica has a broad-spectrum antibacterial effect and is often used to treat acute mastitis, colds and fever, tonsillitis, various pneumonias and respiratory infections. Its efficacy is definite, its onset is rapid, it is safe and non-toxic, and it has a pleasant taste and is easily absorbed.

[0003] The extraction process of *Centella asiatica* typically includes decoction, filtration, and concentration. For example, the energy-saving vacuum depressurization concentrator disclosed in application number CN201922012449.0 includes a concentrator body, a gas-liquid separator, a condenser, and a receiving tank. The top outlet of the concentrator body is connected to the inlet of the gas-liquid separator via a pipe, and the liquid outlet of the gas-liquid separator is connected to the liquid inlet of the concentrator body. The gas outlet of the gas-liquid separator is connected to the heat medium inlet of the condenser via a pipe, and the heat medium outlet of the condenser is connected to the receiving tank. In this embodiment, the condenser is a coil condenser. A heating jacket is fitted in the lower part of the concentrator body, and the heating jacket is connected to a steam pipe. A stirring shaft is installed inside the concentrator body, and stirring blades are installed on the stirring shaft. A scraper is installed at the lower end of the stirring shaft to cooperate with the bottom and side walls of the concentrator body. This energy-saving vacuum depressurization concentrator heats the concentrator body using external circulating steam, thereby continuously boiling the herbal extract and evaporating water vapor, thus forming a concentrated herbal extract.

[0004] However, the stirring blades of this concentration tank need to be equipped with a motor. The motor's power output drives the stirring blades to rotate, thereby agitating the liquid and making it heat more evenly, which is beneficial for the dissipation of water vapor. The motor, as a power source, consumes electricity, increasing the electricity cost of production. At the same time, in order to balance the rate of water vapor evaporation and ensure a relatively uniform gas-liquid flow rate so that the gas-liquid separator can fully perform its separation function (too high a flow rate will cause the gas-liquid separator to be unable to separate in time), the steam temperature (the temperature is constantly changing during the boiling process) and the rotation speed of the stirring blades need to be inversely proportional. At higher temperatures, water vapor evaporates faster, requiring a lower rotation speed; conversely, as the steam temperature decreases, a higher rotation speed is required. However, this utility model does not have this function, and cannot meet the need for speed adjustment. Summary of the Invention

[0005] The purpose of this invention is to provide a device for concentrating and purifying Centella asiatica for medicinal use, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a medicinal concentration and purification device for Centella asiatica, comprising a concentration tank, an impeller mechanism connected to the steam inlet flange of the concentration tank, a connecting shaft fixedly connected to the axis of the impeller mechanism, a transmission mechanism provided at the other end of the connecting shaft, the transmission mechanism driving a speed regulating mechanism, the speed regulating mechanism comprising a speed regulating actuator and a speed regulating power mechanism, wherein the speed regulating actuator is driven by the transmission mechanism to complete the rotational action, the speed regulation of the speed regulating actuator is realized by the speed regulating power mechanism, the speed regulating power mechanism is connected to the gas-liquid outlet of the concentration tank, and a stirring paddle is fixedly connected to the speed regulating actuator, and the stirring paddle extends into the concentration tank.

[0007] As a further preferred embodiment of this technical solution, the impeller mechanism includes a housing with a flange connected to the steam inlet, a rotating impeller body disposed inside the housing, and the impeller body being fixedly connected to the connecting shaft.

[0008] As a further preferred embodiment of this technical solution, the transmission mechanism includes a synchronous pulley one fixedly connected to the top of the connecting shaft, the synchronous pulley one meshing with a synchronous belt one, the synchronous belt one meshing with a synchronous pulley two, the synchronous belt one meshing with a tensioning gear, the tensioning gear causing the synchronous belt one to be taut into a triangular shape, and the tensioning gear being rotatably connected to a tensioning element in the axial direction.

[0009] As a further preferred embodiment of this technical solution, the tensioning member includes a connecting rod rotatably connected to the axial direction of the tensioning gear, and a spring telescopic member is fixedly connected to the other end of the connecting rod.

[0010] As a further preferred embodiment of this technical solution, the speed regulating actuator includes a speed regulating gear fixed coaxially with the second synchronous pulley. The speed regulating gear meshes with the second synchronous belt, and the other end of the second synchronous belt meshes with a plurality of telescopic gear assemblies. The telescopic gear assemblies are equidistantly distributed circumferentially. The inner ends of the telescopic gear assemblies are all fixedly connected to a base, and the interior of the base has a channel that communicates with all the telescopic gear assemblies.

[0011] As a further preferred embodiment of this technical solution, the speed regulating actuator further includes an L-shaped connecting rod rotatably connected to the speed regulating gear in the axial direction, and the horizontal end of the L-shaped connecting rod is also fixedly connected to a spring telescopic member.

[0012] As a further preferred embodiment of this technical solution, the telescopic gear assembly includes a telescopic component that communicates with the channel. A U-shaped pawl is fixedly connected to the outer end of the telescopic component, and a small gear that meshes with the synchronous belt is rotatably connected to the U-shaped pawl.

[0013] As a further preferred embodiment of this technical solution, the speed regulating power mechanism includes an oil pipe fixed at the center of the base and connected to all channels. The other end of the oil pipe is fixedly connected to a piston cylinder. Two piston bodies are movably connected inside the piston cylinder. A return spring is fixedly connected between the upper piston body and the piston cylinder. A linkage rod is fixedly connected between the two piston bodies. An air outlet pipe is provided on the side wall of the piston cylinder. A pneumatic slip ring is fixedly connected to the upper end of the piston cylinder. A conduit is connected to the other side of the pneumatic slip ring and is connected to the gas-liquid outlet.

[0014] As a further preferred embodiment of this technical solution, the spring telescopic component includes a fixed cylinder and a movable rod nested together, and a compression spring connected to the movable rod is fixedly connected inside the fixed cylinder.

[0015] As a further preferred embodiment of this technical solution, it also includes a housing fixedly installed on the outer wall of the concentration tank, wherein the transmission mechanism and the speed regulating actuator are both located inside the housing.

[0016] This invention provides a device for concentrating and purifying Centella asiatica for medicinal use, which has the following beneficial effects:

[0017] (1) The present invention connects an impeller mechanism at the steam inlet of the concentrator, and the steam flow drives the impeller body of the impeller mechanism to rotate. Then, the transmission mechanism and the speed regulation mechanism are driven to rotate synchronously through the connecting shaft. When the speed regulation mechanism rotates, it drives the stirring paddle to rotate inside the concentrator, stirring the liquid to make it heat more evenly. Moreover, the stirring paddle does not need to be equipped with electrical equipment, which reduces the electricity cost.

[0018] (2) The present invention sets a speed regulating mechanism between the transmission mechanism and the stirring paddle. The speed regulating mechanism is divided into a speed regulating execution mechanism and a speed regulating power mechanism. When the temperature inside the concentration tank rises, the internal steam pressure increases. The increased steam enters the piston cylinder through the conduit, pushing the two piston bodies inside the piston cylinder to move. The lower piston body squeezes the oil inside the oil pipe, pushing the telescopic components of all telescopic gear assemblies to extend, increasing the radial length of all telescopic gear assemblies, thereby reducing the rotational speed of the base, and finally realizing the speed regulation of the stirring paddle to balance the speed of gas-liquid evaporation.

[0019] (3) By setting spring extension members on the speed regulating gear and the tensioning gear, the present invention balances the displacement of the speed regulating gear and the tensioning gear during the speed regulation process, and at the same time ensures that the speed regulating gear and the tensioning gear always maintain meshing with the corresponding synchronous belt two and synchronous belt one, thereby improving the stability of the entire device during movement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention;

[0022] Figure 3 This is a schematic diagram of the impeller mechanism, connecting shaft, and synchronous wheel of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the impeller mechanism of the present invention.

[0024] Figure 5 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the speed regulating actuator of the present invention;

[0026] Figure 7 This is a schematic diagram of the tensioning component structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the telescopic gear assembly structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the speed regulating power mechanism of the present invention;

[0029] Figure 10 This is a schematic diagram of the internal structure of the piston cylinder of the present invention;

[0030] Figure 11 This is a schematic diagram of the channel structure of the present invention;

[0031] In the diagram: 1. Concentrator; 2. Impeller mechanism; 21. Outer shell; 22. Impeller body; 3. Connecting shaft; 4. Transmission mechanism; 41. Synchronous pulley one; 42. Synchronous belt one; 43. Synchronous pulley two; 44. Tensioning gear; 45. Tensioning component; 451. Connecting rod; 452. Spring telescopic component; 5. Speed ​​regulating mechanism; 6. Speed ​​regulating actuator; 61. Speed ​​regulating gear; 62. Synchronous belt two; 63. Telescopic gear assembly; 631. Telescopic component; 632. U-shaped chuck; 633. Pinion; 64. Base; 65. Channel; 66. L-shaped connecting rod; 7. Speed ​​regulating power mechanism; 71. Oil pipe; 72. Piston cylinder; 73. Piston body; 74. Linkage rod; 75. Air outlet pipe; 76. Pneumatic slip ring; 77. Guide tube; 8. Agitator; 9. Outer shell. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] This invention provides a technical solution: a device for concentrating and purifying Centella asiatica for medicinal use. In this embodiment, as shown... Figure 1 and Figure 4As shown, the device includes a concentration tank 1, with an impeller mechanism 2 connected to the steam inlet of the concentration tank 1 via a flange. Specifically, the impeller mechanism 2 includes a horizontally arranged outer shell 21, with flange interfaces on both sides of the outer shell 21. One flange interface is connected to the concentration tank 1, and the other flange interface is connected to an external steam boiler via a pipe. Meanwhile, a rotating impeller body 22 is arranged inside the outer shell 21. During the steam circulation process, the steam flow force blows towards the impeller body 22, driving the impeller body 22 to rotate continuously.

[0034] In this embodiment, as Figure 2 and Figure 3 As shown, the impeller body 22 of the impeller mechanism 2 is screwed with a vertically upward connecting shaft 3 on its axis. At the same time, the transmission mechanism 4 is connected to the top of the connecting shaft 3. When the impeller body 22 rotates, the rotational force is transmitted to the connecting shaft 3. During the rotation of the connecting shaft 3, the rotational force can be transmitted to the transmission mechanism 4, thereby driving the transmission mechanism 4 to move.

[0035] Specific transmission mechanism 4, such as Figure 5 As shown, it includes a first synchronous pulley 41 screwed to the top of the connecting shaft 3. The first synchronous pulley 41 is connected to a second synchronous pulley 43 via a first synchronous belt 42. Under the action of the first synchronous belt 42, the first synchronous pulley 41 and the second synchronous pulley 43 can rotate synchronously.

[0036] In addition, in order to coordinate with the speed regulating gear 61 of the speed regulating actuator 6 to move towards the axis of the concentration tank 1, a tensioning gear 44 is simultaneously engaged on the first synchronous belt 42. The tensioning gear 44 tightens the first synchronous belt 42 to form a triangular shape. As the second synchronous pulley 43 moves away from the first synchronous pulley 41, the tensioning gear 44 gradually moves towards the line connecting the centers of the first synchronous pulley 41 and the second synchronous pulley 43. The distance between the first synchronous pulley 41 and the second synchronous pulley 43 can be adjusted according to the position change of the speed regulating gear 61, while ensuring that the first synchronous belt 42 is always engaged with the first synchronous pulley 41 and the second synchronous pulley 43.

[0037] To ensure that the tensioning gear 44 remains firmly attached to the timing belt 42, a tensioning element 45 is rotatably connected in the axial direction of the tensioning gear 44. Specifically, the tensioning element 45 is as follows: Figure 7As shown, it includes a connecting rod 451 rotatably connected to the axial direction of the tension gear 44, and a spring telescopic member 452 fixedly connected to the other end of the connecting rod 451. The direction of the spring telescopic member 452 is set in the moving direction of the tension gear 44. Specifically, the spring telescopic member 452 includes a fixed cylinder and a movable rod nested together. A compression spring connected to the movable rod is fixedly connected inside the fixed cylinder. During the movement of the tension gear 44, the tension gear 44 pushes the connecting rod 451 to move, and the connecting rod 451 transmits this pressure to the spring telescopic member 452. At this time, the movable rod of the spring telescopic member 452 moves into the fixed cylinder and squeezes the compression spring. The elastic restoring force generated by the compression spring at this time causes the connecting rod 451 to give the tension gear 44 a reverse force. Under this reverse force, the tension gear 44 always maintains engagement with the timing belt 42. In addition, in the initial state, in order to make the tension gear 44 mesh well with the timing belt 42, the compression spring is in a compressed state in the initial state, giving the tension gear 44 an initial tension force.

[0038] In this embodiment, as Figure 2 and Figure 5 As shown, the transmission mechanism 4 drives the speed regulating mechanism 5. The transmission mechanism 4 transmits its rotational force to the speed regulating mechanism 5. Specifically, the speed regulating mechanism 5 includes a speed regulating execution mechanism 6 and a speed regulating power mechanism 7. The speed regulating execution mechanism 6 is driven by the transmission mechanism 4 to complete the rotational action. Specifically, the speed regulating execution mechanism 6 includes a speed regulating gear 61 that is coaxially fixed with the second synchronous pulley 43. The speed regulating gear 61 is located below the second synchronous pulley 43. At the same time, the second synchronous belt 62 meshes with the speed regulating gear. The other end of the second synchronous belt 62 meshes with several telescopic gear assemblies 63. Specifically, there are six telescopic gear assemblies 63, which are equidistantly distributed in the circumferential direction.

[0039] The specific telescopic gear assembly 63, such as Figure 8 As shown, the telescopic gear assembly 63 includes a piston-moving telescopic component 631. The movable end of the telescopic component 631 is fixedly connected to a U-shaped chuck 632, and a small gear 633 rotatably connects to the U-shaped chuck 632 and meshes with the second synchronous belt 62. All telescopic gear assemblies 63 are fixedly connected to the side of the base 64. During the rotation of the speed regulating gear 61, the speed regulating gear 61 transmits power to the telescopic gear assembly 63 via the second synchronous belt 62. The continuous movement of the second synchronous belt 62 can drive the small gear 63 to rotate, and simultaneously, the traction force of the synchronous belt drives all the telescopic gear assemblies 63 to cause the base 64 to revolve around the axis of the concentration tank 1; furthermore, as... Figure 11 As shown, a channel 65 is opened inside the base 64 to communicate with the telescopic gear assembly 63. Specifically, the channel 65 is connected to the telescopic member and forms an oil cavity with the inner cavity of the telescopic member.

[0040] In this embodiment, as Figure 9 and Figure 10 As shown, the speed regulation of the speed regulating actuator 6 is achieved by the speed regulating power mechanism 7, which is connected to the gas-liquid outlet of the concentrator 1. Specifically, the speed regulating power mechanism 7 includes an oil pipe 71 fixed on the base 64 and connected to all channels 65. The oil pipe 71 is fixed at the center of the base 64. A piston cylinder 72 is installed on the other end of the oil pipe 71. Two piston bodies 73 are arranged inside the piston cylinder 72. A return spring is connected between the upper piston body 73 and the piston cylinder 72. The piston cylinder 72 cavity isolated by the lower piston body 73 is filled with oil of equal volume to the oil pipe 71 and the oil cavity. The piston cylinder 72 has a piston body 73 with a linkage rod 74 fixed between the two piston bodies 73. The linkage rod 74 enables the two piston bodies 73 to move together. The piston cylinder 72 has an exhaust pipe 75 on its side wall. In the initial state, the exhaust pipe 75 is horizontally facing the side of the upper piston body 73. The upper piston body 73 blocks the exhaust pipe 75. In order to ensure that steam can be smoothly delivered into the piston cylinder 72 during the rotation of the base 64, a pneumatic slip ring 76 is fixedly connected to the upper end of the piston cylinder 72. A conduit 77 is installed on the other side of the pneumatic slip ring 76 and connected to the gas-liquid outlet.

[0041] As the liquid inside the concentration tank 1 boils, the temperature inside the tank gradually rises, causing the internal gas pressure to increase. This increases the gas-liquid pressure in the gas-liquid outlet guide pipe 77. The gas-liquid pressure is transmitted through the guide pipe 77 and the pneumatic slip ring 76 to the piston cylinder 72. This pressure pushes the upper piston body 73 against the tension of the return spring, moving it towards the lower piston body 73. This, in turn, causes the lower piston body 73, which is fixed together by the linkage rod 74, to move synchronously. The lower piston body 73 compresses the oil inside the piston cylinder 72, transmitting pressure through the oil medium to the interior of all telescopic components 631. This causes all telescopic components 631 to move synchronously, increasing their length. By increasing the length of the telescopic component 631, the transmission radius formed by all the telescopic gear components 63 is increased. At this time, the speed regulating gear 61 transmits the rotational force through the synchronous belt 62, thereby reducing the rotational speed of the base 64 and the stirring paddle 8 fixed on the base 64. This balances the relationship between temperature and the rotational speed of the stirring paddle 8, ensuring a relatively stable evaporation rate. During the descent of the upper piston body 73, the piston body 73 leaves the port of the gas outlet pipe 75. At this time, gas and liquid can flow from the gas outlet pipe 75 into the gas-liquid separator. The gas outlet pipe 75 is set on the side of the upper piston body 73 in the initial state, so that gas and liquid can enter the gas outlet pipe 75 after impacting the piston body 73, ensuring that gas and liquid pressure can be applied to the piston body 73.

[0042] After the temperature drops, the gas and liquid in the upper piston body 73 gradually decrease. At this time, under the action of the return spring, the two piston bodies 73 gradually move back. After the lower piston body 73 moves back, the volume of the chamber formed by the lower piston body 73 and the piston cylinder 72 gradually increases, forming a local negative pressure. At this time, the oil body begins to move back. The moving oil body causes a local negative pressure to be formed inside the telescopic component 631. At this time, the telescopic component 631 begins to retract, reducing the length, thereby reducing the transmission radius and increasing the rotational speed.

[0043] After the transmission radius of all telescopic gear assemblies 63 increases, the second synchronous belt 62 is forced to deform. The deformation of the second synchronous belt 62 requires the movement of the speed regulating gear 61. Therefore, to cooperate with the movement of the speed regulating gear 61, an L-shaped connecting rod 66 is rotatably connected to the bottom of the speed regulating gear 61. The L-shaped connecting rod 66 has a horizontal end. At the same time, the L-shaped connecting rod 66 also cooperates with the spring telescopic component 452. As the speed regulating gear 61 is forced to move towards the axis of the concentration tank 1 due to the deformation of the second synchronous belt 62, the L-shaped connecting rod 66 compresses the movable rod of the spring telescopic component 452. Similarly, the movable rod compresses the spring to generate an elastic restoring force. Under the reaction of the elastic restoring force, the speed regulating gear 61 is always engaged with the synchronous belt 62. Likewise, in the initial state, an initial pressure is applied to the compression spring at this point to ensure the engagement of the speed regulating gear 61 with the synchronous belt 62. The speed regulating gear 61, the synchronous pulley 43, and the tension gear 44 are in a dynamic equilibrium state, changing their positions with temperature changes. At the same time, under the action of the spring extension member 452, they always maintain the engagement state, ensuring the transmission stability of the entire system.

[0044] In addition, the device includes a housing 9 fixedly mounted on the outer wall of the concentration tank 1, a connecting shaft 3 extending upwards into the housing 9, with a bearing between them, a spring telescopic member 452 of the transmission mechanism 4 fixed to the inner wall of the housing 9 via a support plate, a synchronous pulley 43 fixed to the inner wall of the housing 9 via a bearing, a speed regulating gear 61 of the speed regulating actuator 6 fixed to the inner wall of the housing 9 via a bearing, and a stirring paddle 8 rotatably mounted on the top of the concentration tank 1 and equipped with an angular bearing, providing axial support.

[0045] This invention provides a device for concentrating and purifying Centella asiatica for medicinal use. The specific working principle is as follows: The impeller body 22 of the impeller mechanism 2 is driven to rotate by the hydrodynamic force of the transported steam. The impeller body 22 drives the connecting shaft 3 to synchronously rotate the transmission mechanism 4 and the speed regulating mechanism 5. During rotation, the speed regulating mechanism 5 drives the stirring paddle 8 to rotate inside the concentration tank 1, agitating the liquid to ensure more uniform heating. Furthermore, the stirring paddle 8 does not require electrical equipment, reducing electricity costs. The speed regulating mechanism 5 is located between the transmission mechanism 4 and the stirring paddle 8. This speed regulating mechanism 5 is divided into a speed regulating actuator 6 and a speed regulating power mechanism 7. As the temperature inside the concentration tank 1 rises, the internal steam pressure increases. The increased pressure of steam enters the piston cylinder 72 through the conduit 77, pushing the two piston bodies 73 inside the piston cylinder 72 to move. The lower piston body 73 squeezes the oil inside the oil pipe 71, pushing the telescopic components 631 of all telescopic gear assemblies 63 to extend, increasing the radial length of all telescopic gear assemblies 63, thereby reducing the rotational speed of the agitator 8. After the temperature decreases, the gas-liquid pressure decreases, the length of all telescopic gear assemblies 63 decreases, and the rotational speed of the agitator 8 decreases. This invention can adjust the rotational speed of the agitator 8 in real time according to the temperature inside the concentration tank 1, balancing the inverse relationship between the temperature of the concentration tank 1 and the rotational speed of the agitator 8, and stabilizing the gas-liquid evaporation rate.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for concentrating and purifying Centella asiatica for medicinal use, comprising a concentration tank (1), characterized in that: The steam inlet flange of the concentrator (1) is connected to an impeller mechanism (2). A connecting shaft (3) is fixedly connected to the axis of the impeller mechanism (2). A transmission mechanism (4) is provided at the other end of the connecting shaft (3). The transmission mechanism (4) drives a speed regulating mechanism (5). The speed regulating mechanism (5) includes a speed regulating actuator (6) and a speed regulating power mechanism (7). The speed regulating actuator (6) is driven by the transmission mechanism (4) to complete the rotation action. The speed regulation of the speed regulating actuator (6) is realized by the speed regulating power mechanism (7). The speed regulating power mechanism (7) is connected to the gas-liquid outlet of the concentrator (1). A stirring paddle (8) is fixedly connected to the speed regulating actuator (6), and the stirring paddle (8) extends into the concentrator (1). The impeller mechanism (2) includes a housing (21) with a flange connected to the steam inlet, and a rotating impeller body (22) is provided inside the housing (21), and the impeller body (22) is fixedly connected to the connecting shaft (3); The transmission mechanism (4) includes a timing pulley (41) fixedly connected to the top of the connecting shaft (3). The timing pulley (41) meshes with a timing belt (42). The timing belt (42) meshes with a timing pulley (43). The timing belt (42) meshes with a tension gear (44). The timing belt (42) is tightened into a triangular shape by the tension gear (44). A tensioning member (45) is rotatably connected to the tension gear (44) in the axial direction. The tensioning member (45) includes a connecting rod (451) rotatably connected to the axial direction of the tensioning gear (44), and a spring telescopic member (452) is fixedly connected to the other end of the connecting rod (451). The speed regulating actuator (6) includes a speed regulating gear (61) fixed coaxially with the second synchronous pulley (43). The speed regulating gear is meshed with the second synchronous belt (62). The other end of the second synchronous belt (62) is simultaneously meshed with a number of telescopic gear assemblies (63). The telescopic gear assemblies (63) are equidistantly distributed in the circumferential direction. The inner ends of the telescopic gear assemblies (63) are all fixedly connected to a base (64). The base (64) has a channel (65) inside that communicates with all the telescopic gear assemblies (63). The speed regulating actuator (6) also includes an L-shaped connecting rod (66) rotatably connected to the speed regulating gear (61) in the axial direction, and the horizontal end of the L-shaped connecting rod (66) is also fixedly connected to a spring telescopic member (452). The telescopic gear assembly (63) includes a telescopic component (631) that is connected to the channel (65). A U-shaped claw (632) is fixedly connected to the outer end of the telescopic component (631). A small gear (633) that meshes with the timing belt (62) is rotatably connected to the U-shaped claw (632). The speed regulating power mechanism (7) includes an oil pipe (71) fixed at the center of the base (64) and connected to all channels (65). The other end of the oil pipe (71) is fixedly connected to a piston cylinder (72). Two piston bodies (73) are movably connected inside the piston cylinder (72). A return spring is fixedly connected between the upper piston body (73) and the piston cylinder (72). A linkage rod (74) is fixedly connected between the two piston bodies (73). An air outlet pipe (75) is provided on the side wall of the piston cylinder (72). A pneumatic slip ring (76) is fixedly connected to the upper end of the piston cylinder (72). A conduit (77) is connected to the other side of the pneumatic slip ring (76), and the conduit (77) is connected to the gas-liquid outlet. The spring telescopic component (452) includes a fixed cylinder and a movable rod nested together, and a compression spring connected to the movable rod is fixedly connected inside the fixed cylinder; It also includes a housing (9) fixedly installed on the outer wall of the concentration tank (1), and the transmission mechanism (4) and the speed regulating actuator (6) are both located inside the housing (9).

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