Reaction kettle for producing environment-friendly weather-resistant automobile coating curing agent

Abstract

This application relates to the field of reaction vessel technology and discloses a reaction vessel for producing environmentally friendly weather-resistant automotive coating curing agents. The reaction vessel includes a vessel body, with a vent pipe and several feed pipes fixedly connected to the top of the vessel body, and a discharge pipe fixedly connected to the bottom of the vessel body. A drive shaft is rotatably mounted on the axis of the vessel body, and a flat key is fixedly mounted on the shaft body inside the vessel body. This invention uses an electric push rod to drive the moving seat and filter mechanism to rise and fall. During the rising and falling process, the filter plate filters undissolved powder agglomerates and scrapes off materials adhering to the inner wall of the vessel body. When the probe contacts the pressure sensor at the top of the vessel body, the pressure sensor can reflect the contact pressure value that changes with the mass of the filtered material on the filter plate. This can correct the total weight detection value of the weighing sensor, reduce interference with weighing accuracy, improve the accuracy of component addition control and reaction endpoint determination, and improve reaction efficiency and product quality stability.

Description

Technical Field

[0001] This application relates to the field of reaction vessel technology, and in particular to a reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent. Background Technology

[0002] A reaction vessel is a device that utilizes stirring, heating, and pressurization to achieve the mixing, dispersion, reaction, and mass and heat transfer processes of multiphase materials within a closed container. It provides suitable temperature, pressure, and mixing environment for chemical reactions, thereby ensuring the efficiency of the reaction process and the stability of product quality. In the production of environmentally friendly weather-resistant automotive coating curing agents, reaction vessels need to complete processes such as precise proportioning and uniform dispersion of multiple components. Existing curing agent production reaction vessels typically include a jacketed vessel body, several feed pipes and vent pipes connected to the top of the vessel body, and a discharge pipe with a discharge valve at the bottom. A stirring shaft driven by a geared motor is rotatably mounted on the vessel body's axis, with a stirring frame or stirring blades fixedly connected to the stirring shaft for mechanical stirring of the materials inside the vessel. Simultaneously, multiple load cells are installed around the vessel body via support components to monitor the total mass of the vessel body and its internal materials in real time. Flexible connections are used in the feed pipes to reduce external interference. The load cells feed mass signals back to the controller to achieve quantitative control of the amount of each component added.

[0003] During operation, different components are injected into the reactor by opening the feed valves in sequence. The weighing sensor provides real-time feedback on the mass increment. Once the preset addition amount is reached, the corresponding valve is closed. Then, the stirring motor is started to drive the stirring frame to rotate, so that the components are fully mixed and dispersed in the reactor. At the same time, the reactor body is heated to the reaction temperature through the circulation of heat medium in the jacket, and the pressure in the reactor is regulated by the air vent. During the reaction, the operator judges the reaction progress based on the mass change of the weighing sensor and the preset process time. After the reaction is completed, the discharge valve is opened to discharge the material.

[0004] However, in the operation of existing reactors, some curing agent raw materials often contain insoluble powder components or easily agglomerated excipients. During the stirring and dispersion process, some undissolved solid particles and materials adhering to the inner wall of the reactor due to liquid level fluctuations will be suspended or adhered to the mixture. This results in the total mass detected by the weighing sensor not only including the completely dissolved effective components, but also the mass of unreacted solid impurities and wall-adhered substances. This makes it difficult to distinguish between effective reactants and ineffective solid impurities, causing a deviation between the "reaction completion mass" reflected by the weighing sensor and the actual effective product mass. Especially in the preparation of reagents with strict requirements for conversion rate, this error will significantly affect the accuracy of the endpoint judgment of the mixing stage. It may lead to prematurely increasing the rotation speed, causing material splashing or excessive shearing, or prematurely increasing the rotation speed, resulting in insufficient stirring and prolonging the reaction time. This not only reduces production efficiency, but also easily leads to a decrease in batch consistency of product quality. Summary of the Invention

[0005] This application proposes a reaction vessel for producing environmentally friendly and weather-resistant automotive coating curing agents, which has the advantages of improving the uniformity of material dispersion and being able to dynamically correct the weighing. This solves the problem of undissolved solids interfering with the weighing sensor during the curing agent preparation process in existing reaction vessels, leading to misjudgment of the reaction endpoint.

[0006] To achieve the above objectives, this application adopts the following technical solution: a reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent, comprising a vessel body, a vent pipe and several feed pipes fixedly connected to the top of the vessel body, a discharge pipe fixedly connected to the bottom of the vessel body, a drive shaft rotatably disposed at the axis of the vessel body, a flat key fixedly disposed on the shaft body of the drive shaft located inside the vessel body, a movable sleeve slidably sleeved on the outer side of the drive shaft, a stirring frame fixedly sleeved on the top of the movable sleeve, a movable seat rotatably snapped onto the bottom of the movable sleeve, a connecting sleeve fixedly connected to the bottom of the movable seat, and a filter mechanism movably disposed on the outer side of the connecting sleeve;

[0007] The filtration mechanism includes a filter plate with a plurality of filter holes at equal intervals. Probes are provided on both sides of the filtration mechanism. A pressure sensor is fixedly installed near the top of the vessel. A balance spring is movably sleeved on the outside of the connecting sleeve. The balance spring is used to balance the weight of the filtration mechanism and the probes, so that the pressure sensor can detect the contact pressure value that changes with the mass of the filtered material on the filtration mechanism.

[0008] Furthermore, a No. 1 motor is fixedly installed on the top of the vessel body, and the output end of the No. 1 motor is connected to the drive shaft. Electric push rods are fixedly installed on both sides of the top of the vessel body, and the output ends of the electric push rods are fixedly connected to the moving base. One side of the connecting sleeve has an L-shaped cross-section.

[0009] The electric push rod extends and retracts, causing the moving seat to move vertically. The moving seat, through the connecting sleeve and balance spring, drives the filter mechanism to rise and fall, so that the filter plate filters the material in the vessel during the rising and falling process, while scraping off the material adhering to the inner wall of the vessel due to liquid level fluctuations.

[0010] Furthermore, the number and position of the pressure sensors are adapted to the number and position of the probes, and several support members are fixedly connected to the outside of the vessel body, with a weighing sensor fixedly installed at the bottom of each support member.

[0011] The weighing sensor detects the total weight of the vessel, related structures, and materials in real time and feeds it back to the processor. Combined with the feedback from the pressure sensor, it helps to determine whether the amount of each component added meets the standard and whether the reaction process has reached the endpoint. Multiple sensors work together to reduce detection errors.

[0012] Furthermore, the filtration mechanism also includes an adjustment plate, the plate body of which has a plurality of adjustment slots, the adjustment slots being fan-shaped and the plurality of adjustment slots being arranged in a ring at equal intervals, a rotating ring being rotatably provided on the top inner side of the adjustment plate, the plate body of the filter plate having a plurality of connecting slots, the filter plate rotating relative to the adjustment plate being able to switch the positional correspondence between the connecting slots and the plate body part with filter holes and the adjustment slots.

[0013] When the connecting sleeve rises, the filter plate rotates to align the plate body with the position of the regulating groove. After the material is filtered through the filter holes, it falls through the regulating groove, filtering out the powder that clumps during the mixing stage and the colloidal material generated during the reaction stage. When the connecting sleeve descends, the filter plate rotates to align the position of the connecting groove with the regulating groove, allowing the material at the bottom of the filtration mechanism to flow through the regulating groove and the connecting groove to the top of the filtration mechanism, and driving the material to flow vertically, which facilitates the concentrated filtration of colloidal materials.

[0014] Furthermore, the adjusting plate is slidably sleeved with the connecting sleeve, the adjusting plate is fixedly connected with the probe rod, one end of the balance spring is fixedly connected with the adjusting plate, the adjusting plate is slidably sleeved with the vessel body, and a space is left between the filter plate and the inner wall of the vessel body.

[0015] Furthermore, the rotating ring is fixedly sleeved with the filter plate, and the shape and number of the connecting grooves are adapted to the shape and number of the adjusting grooves, with several adjusting grooves arranged at equal intervals.

[0016] Furthermore, a gear ring is rotatably provided inside the adjusting plate, a gear is rotatably provided on one side of the adjusting plate, an adjusting shaft is rotatably provided on one side of the adjusting plate, a fixing frame is fixedly connected to one side of the bottom of the vessel body, a fixing cylinder is fixedly provided on one side of the bottom of the vessel body, a transmission shaft is rotatably engaged inside the fixing cylinder, and a second motor is fixedly provided at the bottom of the fixing frame.

[0017] Furthermore, the gear meshes with the adjusting plate, the gear ring is fixedly connected to the rotating ring, the bottom shaft of the adjusting shaft is set as a key shaft, the adjusting shaft is connected to the transmission shaft via a key, and the output end of the second motor is connected to the transmission shaft.

[0018] Furthermore, a number of baffles are fixedly installed in the adjustment groove. The baffles are arranged in a circumferential direction in the corresponding adjustment groove at equal intervals. The baffles are used to close the filter holes when the filter plate rotates to a preset angle relative to the adjustment plate.

[0019] The baffle is fixedly installed in the adjustment groove. When the filter plate rotates to the preset angle, the baffle aligns with the filter hole and closes the filter hole, so that the filter plate and the adjustment plate together form a partition structure. When a small amount of liquid reagent is added, the filter plate rotates to the state where the baffle closes the filter hole and the connecting groove aligns with the adjustment plate body, separating the top and bottom cavities of the filtration mechanism. This allows a small amount of liquid reagent to fall from the feed pipe and be temporarily stored at the top of the filtration mechanism. Then, the filter plate rotates to align the connecting groove with the adjustment groove and open it to a small degree, allowing the liquid reagent to be evenly dispersed and fall through each adjustment groove. When adding powdered reagent, the No. 2 motor drives the filter plate to rotate during the addition process to pre-disperse the powder and improve the uniformity of powder wetting.

[0020] The beneficial effects of this invention are as follows:

[0021] This application provides a reactor for producing an environmentally friendly, weather-resistant automotive coating curing agent. An electric push rod drives the moving base and filtration mechanism to rise and fall. During this process, the filter plate filters undissolved powder clumps and scrapes off materials adhering to the inner wall of the reactor. In conjunction with a probe and a pressure sensor at the top of the reactor, a balancing spring balances the weight of the filtration mechanism and the probe. This allows the pressure sensor to detect changes in contact pressure as the mass of the filtered material on the filter plate changes. The processor corrects the total weight detected by the weighing sensor based on this contact pressure value, minimizing interference from undissolved solids and wall deposits on the weighing accuracy. This improves the accuracy of component addition control and reaction endpoint determination. Simultaneously, the processor judges the dissolution process of the powder components based on changes in the pressure sensor feedback value and dynamically adjusts the stirring rack speed accordingly. This ensures the stirring intensity matches the requirements of the mixing and reaction stages, guaranteeing sufficient dispersion of the reagents and improving reaction efficiency and product quality stability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the stirring frame in this invention;

[0026] Figure 4 This is a cross-sectional schematic diagram of the movable sleeve structure of the present invention;

[0027] Figure 5 This is a cross-sectional view of a portion of the structure at the connecting sleeve of the present invention;

[0028] Figure 6 This is a partial structural cross-sectional view of the filtration mechanism in Embodiment 3 of the present invention;

[0029] Figure 7 This is a schematic cross-sectional view of a portion of the gear structure of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point A in the image;

[0031] Figure 9 For the present invention Figure 7 Enlarged view of the structure at point B in the image.

[0032] In the diagram: 1. Vessel body; 2. Drive shaft; 3. Motor No. 1; 4. Moving sleeve; 5. Stirring frame; 6. Moving seat; 7. Connecting sleeve; 8. Filtration mechanism; 801. Filter plate; 802. Connecting groove; 803. Adjusting plate; 804. Adjusting groove; 805. Rotating ring; 806. Gear ring; 807. Gear; 808. Stop bar; 9. Electric push rod; 10. Probe rod; 11. Balance spring; 12. Weighing sensor; 13. Adjusting shaft; 14. Fixed frame; 15. Motor No. 2; 16. Transmission shaft; 17. Fixed cylinder; 18. Pressure sensor. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1, as Figures 1-5 and Figure 7A reaction vessel for producing environmentally friendly and weather-resistant automotive coating curing agents includes a vessel body 1 with a jacket. The vessel body 1 can be used for the dispersion and reaction of agents such as environmentally friendly and weather-resistant automotive coating curing agents. A vent pipe and several feed pipes are fixedly connected to the top of the vessel body 1. A discharge pipe with a discharge valve is fixedly connected to the midpoint of the bottom of the vessel body 1. A drive shaft 2 is rotatably installed on the axis of the vessel body 1. A No. 1 motor 3 is fixedly installed on the top of the vessel body 1. The output end of the No. 1 motor 3 is connected to the drive shaft 2. The No. 1 motor 3 is a geared motor used to drive the drive shaft 2 to rotate. A flat key is fixedly installed on the shaft of the drive shaft 2 located inside the vessel body 1. A movable sleeve 4 is slidably sleeved on the outside of the drive shaft 2. While the drive shaft 2 drives the movable sleeve 4 to rotate through the flat key, the movable sleeve 4 can move axially relative to the drive shaft 2.

[0035] A stirring frame 5 is fixedly fitted to the top of the movable sleeve 4. The stirring frame 5 is used to rotate and stir the liquid to accelerate the dispersion of the pharmaceutical components. A movable seat 6 is rotatably engaged at the bottom of the movable sleeve 4. The movable seat 6 drives the movable sleeve 4 to move axially while the movable sleeve 4 can rotate circumferentially relative to the movable seat 6. Electric push rods 9 are fixedly installed on both sides of the top of the vessel body 1. The output end of the electric push rod 9 extends into the vessel body 1 and is fixedly connected to the movable seat 6. The two electric push rods 9 extend and retract synchronously to drive the movable seat 6 to move vertically. A connecting sleeve 7 is fixedly connected to the bottom of the movable seat 6. One side of the connecting sleeve 7 has an L-shaped cross section. A filter mechanism 8 is movably installed on the outside of the connecting sleeve. Specifically, the filter mechanism 8 includes a filter plate 801. The filter plate 801 is set as an annular plate and can move vertically relative to the connecting sleeve 7. The plate body of the filter plate 801 has a number of filter holes opened at equal intervals to filter out solid impurities in the pharmaceutical mixture. See reference. Figure 4 The filter mechanism 8 has probes 10 on both sides.

[0036] The top height of the probe 10 is higher than the top height of the agitator 5. A pressure sensor 18 is fixedly installed near the top of the vessel body 1. The number and position of the pressure sensors 18 are adapted to the number and position of the probes 10. When the filter mechanism 8 rises, it can drive the probe 10 to contact the corresponding pressure sensor 18. The pressure sensor 18 is used to detect the contact pressure with the probe and feed the result back to the PLC processor. A balance spring 11 is movably sleeved on the outside of the connecting sleeve 7. The top end of the balance spring 11 is connected to the filter mechanism 8, and one end of the bottom end of the balance spring 11 is fixedly connected to the bottom of the connecting sleeve 7. It is used to balance the gravity of the filter mechanism 8 and the probe 10. The filter mechanism 8 can move axially without detaching from the connecting sleeve 7. In the initial state, the balance spring 11 pushes the filter mechanism 8 to move relative to the connecting sleeve 7 to a position close to the moving seat 6.

[0037] Several support members are fixedly connected to the outside of the vessel body 1. The support members are arranged in a ring at equal intervals. Weighing sensors 12 are fixedly installed at the bottom of the support members. The bottom of the weighing sensors 12 is fixedly installed on the working platform. The several weighing sensors 12 are used to support the vessel body 1 and detect the total weight of the vessel body 1, the connected structure and the reagent mixture. The results are fed back to the processor. The processor determines the amount of each component of the reagent and the end point of the reaction stage based on the feedback value of the weighing sensors 12. The feed pipe and the feed pipe of the reagent components are connected in a flexible manner to ensure the accuracy of the detection results of the weighing sensors 12. When the vessel body 1 is in an empty state, the value fed back to the processor by the weighing sensors 12 is the zero point value.

[0038] During operation, each component of the curing agent is added sequentially into the reactor body 1 through the feed pipe. At this time, the weighing feedback value of the weighing sensor 12 increases. When the feedback value of the weighing sensor relative to the zero point value is greater than the weight of the corresponding required amount of reagent component, the controller cuts off the supply of the corresponding reagent component and proceeds to the next reagent component addition operation. This continues until the feedback value of the weighing sensor 12 increases by the weight of the reagent component to be added this time when the previous reagent component addition is completed, until all reagents are added. At the same time, a heat medium is introduced into the jacket of the reactor body 1 to heat the reactor body 1 to the preset temperature. The first motor 3 starts and drives the drive shaft 2 to rotate. The rotation of the drive shaft 2 drives the moving sleeve 4 to rotate. The rotation of the moving sleeve 4 drives the stirring frame 5 to rotate, dispersing the reagent mixture added into the reactor body 1. The vent pipe is connected to the air extraction component through a pipe equipped with a valve. The air extraction component controls the internal air pressure of the reactor body 1.

[0039] During the process of the stirring frame 5 rotating and stirring the liquid, the electric push rod 9 starts to drive the moving seat 6 to move vertically up and down. During the process of the moving seat 6 moving from the bottom of the vessel body 1 to the top of the vessel body 1, the moving seat 6 moves up and drives the connecting sleeve 7 to rise. The connecting sleeve 7 drives the filter plate 801 to rise through the elastic transmission of the balance spring 11. In this embodiment, the filter plate 801 is set to slide and sleeve with the inner wall of the vessel body 1, so that while the filter plate 801 is rising and stirring the drug mixture, the filter plate 801 scrapes off the material attached to the inner wall of the vessel body 1 due to the fluctuation of the liquid surface, and filters the drug mixture. The drug mixture falls through the filter holes into the bottom cavity of the vessel body 1 of the filter plate 801. Undissolved and agglomerated powder components are filtered out by the filter plate 801 until the filtration mechanism drives the probe 10 to contact the corresponding pressure sensor 18.

[0040] At this point, the filter plate 801 disengages from the reagent solution, and the filtration mechanism 8, driven by the reaction force of the probe 10, tends to move closer to the bottom of the connecting sleeve 7. When the electric push rod 9 retracts to its rated amount, the transmission drives the connecting sleeve 7 to move upwards to its rated amount. At this time, the distance between the bottom surface of the connecting sleeve 7 and the corresponding pressure sensor 18 is less than the distance between the top surface of the probe 10 and the bottom surface of the connecting sleeve 7. Under the reverse force of the probe 10, the filtration mechanism 7 moves as a whole closer to the connecting sleeve 7, i.e., the end point of the connecting sleeve 7's stroke, causing the balance spring 11 to be compressed by a preset amount. When there is no material on the filtration mechanism 8, the balance spring 11 is in the corresponding compressed state, causing the filtration mechanism to drive the probe 10 to contact the corresponding pressure sensor 18. The contact pressure value of 8 is the zero-point state value. When the powder component at the top of the filter plate 801 is filtered out, the total weight of the filter mechanism 8, probe 10 and undissolved powder component increases, thereby increasing the compression of the balance spring 11 when it is in equilibrium. At this time, the balance spring 11 pushes the filter mechanism under the preset compression, thereby causing the probe 10 to contact the corresponding pressure sensor 18 and the actual contact pressure decreases. That is, when the mass of the filtered material increases, in order to maintain balance, the compression of the balance spring 11 will increase accordingly at a fixed geometric position, causing the feedback value of the contact pressure detected by the sensor to change, and the amount of contact pressure change detected by the pressure sensor is numerically equal to the weight of the newly filtered material.

[0041] When the connecting sleeve 7 descends, the probe 10 disengages from the corresponding pressure sensor 18, the filter plate 801 is re-immersed in the drug solution, and the drug solution is driven to flow vertically. In conjunction with the rotation of the stirring frame 5 to disperse the drug components, the electric push rod 9 repeatedly extends and retracts. During this process, the stirring frame 5 is immersed in the drug solution. After a certain interval, the electric push rod 9 again drives the filter plate 801 out of the drug solution and moves the probe 10 to contact the pressure sensor 18, causing the balance spring 11 to compress again by the preset amount. When the feedback value of the pressure sensor 18 changes within the preset range three times in a row, the dissolution and mixing stage can be considered complete.

[0042] Next, the speed of the drive shaft 2 is increased by the first motor 3, which drives the agitator 5 to agitate at high speed to carry out the chemical reaction. During this process, the weighing sensor 12 detects the pressure value of the entire vessel 1. At the same time, the electric push rod 9 drives the probe 10 to contact the pressure sensor 18 at certain intervals, so that the balance spring 11 is in a preset compression state. At this time, the processor calculates the difference between the actual pressure value of the pressure sensor 18 and the zero point state value. The average value of the difference between the two pressure sensors 18 is recorded as the judgment difference to reduce the off-center load error. When the feedback value of the weighing sensor 12 minus the judgment difference reaches the preset value, the controller determines that the reaction of the curing agent preparation operation is completed and performs the discharge and cleaning operations.

[0043] By adjusting the contact pressure between the probe rod 10 and the pressure sensor 18 when there are impurities of different masses on the filter plate 801, the balance spring 11, in conjunction with the filter mechanism 8, minimizes the error caused by the mass of undissolved solids and materials adhering to the inner wall of the vessel 1, which may lead to the error in the weighing sensor 12 reflecting the complete mass of the material reaction. This improves the accuracy of the weighing sensor 12's results. The continuous change in the contact pressure between the probe rod 10 and the pressure sensor 18 is used to determine the mixing stage progress, thereby adjusting the rotation speed of the agitator 5 to match the reaction stage, ensuring the reaction environment required by the reagents during the reaction stage, further improving the quality of the curing agent prepared in the reactor, and increasing the overall production efficiency. After preparation, the heat medium in the jacket is discharged, and clean water is introduced into the vessel 1 for cleaning. At this time, when the balance spring 11 is at the preset compression level, the detection value of the pressure sensor 18 is set to a new zero point value. In this example, the filter can be cleaned of impurities periodically by backflushing, i.e., the discharge pipe is switched to the water inlet end through a valve, and the feed pipe at the top of the vessel 1 used for water inlet is switched to the water outlet pipe through a valve for backflushing cleaning.

[0044] Example 2, as Figures 1-5 and Figures 7-9 Based on Embodiment 1, the filter mechanism 8 further includes an adjusting plate 803, which is slidably sleeved with the connecting sleeve 7 and fixedly connected to the probe rod 10. One end of the balance spring 11 is fixedly connected to the adjusting plate 803. Unlike Embodiment 1, in this embodiment, there is a space between the filter plate 801 and the inner wall of the vessel body 1. The adjusting plate 803 is slidably sleeved with the vessel body 1. The adjusting plate 803 has several adjusting grooves 804, which are fan-shaped and spaced equally. The filter plates are arranged in a ring. A rotating ring 805 is rotatably installed on the top inner side of the adjusting plate 803. The rotating ring 805 is fixedly sleeved with the filter plate 801. The filter plate 801 has several connecting grooves 802. The shape and number of the connecting grooves 802 are adapted to the shape and number of the adjusting grooves 804. The several adjusting grooves 804 are arranged at equal intervals. The filter plate 801 is used to rotate relative to the adjusting plate 803 to switch the positional correspondence between the connecting grooves 802 and the plate part with filter holes and the adjusting grooves 804.

[0045] A gear ring 806 is rotatably mounted inside the adjusting plate 803. A gear 807 is rotatably mounted on one side of the adjusting plate 803. The gear 807 meshes with the gear ring 806. The gear ring 806 is fixedly connected to the rotating ring 805. An adjusting shaft 13 is rotatably mounted on one side of the adjusting plate 803. A fixing frame 14 is fixedly connected to one side of the bottom of the vessel body 1. A fixing cylinder 17 is fixedly mounted on one side of the bottom of the vessel body 1. A transmission shaft 16 is rotatably engaged inside the fixing cylinder 17. The bottom shaft of the adjusting shaft 13 is a flat key shaft. The adjusting shaft 13 is connected to the transmission shaft 16 via a flat key, so that the transmission shaft 16 drives the adjusting shaft 13 to rotate circumferentially relative to the fixing cylinder 17, while the adjusting shaft 13 can move axially. A second motor 15 is fixedly mounted at the bottom of the fixing frame 14. The second motor 15 is a servo motor. The output end of the second motor 15 is connected to the transmission shaft 16.

[0046] When the electric push rod 9 drives the connecting sleeve 7 to rise from the bottom of the vessel body 1, the second motor 15 drives the drive shaft 16 to rotate. The drive shaft 16 drives the adjusting shaft 13 to rotate. While the adjusting shaft 13 moves upward, it drives the gear 807 to rotate. The rotation of the gear 807 drives the gear ring 806 to rotate, thereby driving the rotating ring 805 to rotate. The rotation of the rotating ring 805 drives the filter plate 801 to rotate until the plate position of the filter plate 801 rotates to correspond to the position of the adjusting groove 804. At this time, the reagent mixture located at the top of the filter plate 801 can flow through the filter holes and the adjusting groove 804 to the cavity at the bottom of the filter mechanism 8 in the vessel body 1. The filter holes are used to filter out the agglomerated powder that appears in the mixing stage and the side reaction colloidal materials that appear in the reaction stage.

[0047] When the connecting sleeve 7 moves and descends, the second motor 15 drives the filter plate 801 to rotate to the state where the connecting groove 802 and the adjusting groove 804 are in the same position. At this time, the filter plate 801 and the adjusting plate 803 descend relative to the mixture. The mixture flows from the bottom of the adjusting plate 803 through the adjusting groove 804 and the connecting groove 802 to the cavity of the vessel body 1 located at the top of the filter plate 801. During this process, the by-product colloids generated by the reaction of the reagent components at the bottom of the filtration mechanism 8 can move to the top of the filtration mechanism 8. When the filtration mechanism 8 rises again, it drives the vertical convection of the mixture at the bottom of the vessel body 1, so that the colloidal materials located at the top and bottom of the filtration mechanism 8 in the vessel body 1 can flow to the top of the filtration mechanism 8 and be filtered out during the subsequent rise of the filtration mechanism 8.

[0048] In this embodiment, the control method of motor 3 and electric push rod 9 is the same as in embodiment one. However, during the reaction stage, by switching the state of filter plate 801, connecting groove 802 and adjusting groove 804, the filter plate 801 may contain undissolved impurities and colloidal materials during the reaction stage. This causes the balance spring 11 to work with the filter mechanism 8 to change the contact pressure between the probe rod 10 and the pressure sensor 18. That is, the judgment difference increases with the increase of colloidal products from the side reaction. The processor judges the weighing sensor 12 to remove the judgment difference and correct it. When there are colloidal by-products in the preparation process, it can further improve the accuracy of the weighing sensor 12 in reflecting the mass of the material after the reaction is completed. It minimizes the error caused by the mass of undissolved solids, materials attached to the inner wall of the reactor 1 and colloidal products from the side reaction that may exist in the weighing sensor 12 reflecting the mass of the material after the reaction is complete. At the same time, it is necessary to judge the range of difference change. When the judgment difference changes within the rated range for three consecutive times, it is determined that the reaction is complete. The weighing sensor 12 and pressure sensor 18 jointly reflect the reaction process of the reagent components, further improving the quality and production efficiency of the curing agent prepared in the reactor.

[0049] Unlike Embodiment 1, in this embodiment, during the cleaning operation, as the electric push rod 9 drives the connecting sleeve 7 to rise and fall, the filter plate 801 maintains the state in which the connecting groove 802 and the adjusting groove 804 are aligned, thereby separating and discharging impurities and finished pharmaceuticals, and improving unloading efficiency.

[0050] Example 3, as Figure 2 , Figure 3 , Figures 5-7 Based on Embodiment 2, a plurality of baffles 808 are fixedly installed in the adjustment groove 804. The baffles 808 are arranged in a circumferential direction in the corresponding adjustment groove 804 at equal intervals. The baffles 808 are used to close the filter holes when the filter plate 801 rotates to a preset angle relative to the adjustment plate 803. When the filter plate 801 drives the connecting groove 802 to rotate and switch to the position corresponding to the adjustment groove 804, the colloidal material can pass through the channel between the baffles 808 through the adjustment groove 804, and then flow from the bottom to the top of the filter mechanism 8 through the connecting groove 802.

[0051] In this embodiment, when the pharmaceutical components are added sequentially, the electric push rod 9 drives the connecting sleeve 7 to move and rise to the top position of the vessel body 1, so that the position of the filter mechanism 8 is higher than the liquid level inside the vessel body 1. Before adding the corresponding pharmaceutical components, for a small amount of liquid pharmaceutical components, the second motor 15 drives the filter plate 801 to rotate so that the plate position corresponds to the position of the adjusting groove 804, and the position of the baffle 808 corresponds to the position of the filter hole. At this time, the position of the connecting groove 802 corresponds to the position of the adjusting plate 803. The filter plate 801 and the adjusting plate 803 separate the cavities of the vessel body 1 located at the top and bottom of the filter mechanism 8. After the added pharmaceuticals enter the vessel body 1 through the feed pipe, they fall to the top of the filter mechanism 8. Then, the filter plate 801 rotates until a part of the connecting groove 802 corresponds to the position of the adjusting groove 804, so that the adjusting groove 804 opens to a small degree, thereby dispersing the small amount of liquid pharmaceuticals to each adjusting groove 804 and falling down, reducing the possibility that the addition of a small amount of components will lead to uneven dispersion later.

[0052] For powdered reagents, the second motor 15 drives the filter plate 801 to rotate during the addition process. The rotation of the filter plate 801 disperses the powdered reagent components, thereby ensuring uniform addition of the reagent and improving the subsequent dispersion efficiency. During the subsequent dispersion and reaction process, when the connecting sleeve 7 rises, the second motor 15 drives the filter plate 801 to rotate so that the plate position corresponds to the position of the adjustment groove 804, and so that the channel of the adjustment groove 804 before the adjacent baffle 808 corresponds to the position of the filter hole. The dispersion and reaction operation is still carried out according to the process of Example 2.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent, comprising a vessel body (1), wherein a vent pipe and several feed pipes are fixedly connected to the top of the vessel body (1), and a discharge pipe is fixedly connected to the bottom of the vessel body (1), characterized in that, A drive shaft (2) is rotatably provided at the axis of the vessel body (1). A flat key is fixedly provided on the shaft of the drive shaft (2) inside the vessel body (1). A movable sleeve (4) is slidably sleeved on the outside of the drive shaft (2). A stirring frame (5) is fixedly sleeved on the top of the movable sleeve (4). A movable seat (6) is rotatably snapped onto the bottom of the movable sleeve (4). A connecting sleeve (7) is fixedly connected to the bottom of the movable seat (6). A filter mechanism (8) is movably provided on the outside of the connecting sleeve. The filtration mechanism (8) includes a filter plate (801). The filter plate (801) has a number of filter holes at equal intervals. Probes (10) are provided on both sides of the filtration mechanism (8). A pressure sensor (18) is fixedly installed at the top position inside the vessel body (1). A balance spring (11) is movably sleeved on the outside of the connecting sleeve (7). The balance spring (11) is used to balance the weight of the filtration mechanism (8) and the probes (10), so that the pressure sensor (18) can detect the contact pressure value that changes with the mass of the filtered material on the filtration mechanism (8).

2. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 1, characterized in that, A No. 1 motor (3) is fixedly installed on the top of the vessel body (1). The output end of the No. 1 motor (3) is connected to the drive shaft (2) for transmission. Electric push rods (9) are fixedly installed on both sides of the top of the vessel body (1). The output end of the electric push rod (9) is fixedly connected to the moving seat (6). One side of the connecting sleeve (7) has an L-shaped cross section.

3. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 1, characterized in that, The number and position of the pressure sensors (18) are adapted to the number and position of the probes (10). Several support members are fixedly connected to the outside of the vessel body (1), and a weighing sensor (12) is fixedly installed at the bottom of the support member.

4. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 3, characterized in that, The filtration mechanism (8) further includes an adjustment plate (803). The plate body of the adjustment plate (803) is provided with a plurality of adjustment grooves (804). The adjustment grooves (804) are fan-shaped and the plurality of adjustment grooves (804) are arranged in a ring at equal intervals. A rotating ring (805) is rotatably provided on the top inner side of the adjustment plate (803). The plate body of the filter plate (801) is provided with a plurality of connecting grooves (802). The filter plate (801) can rotate relative to the adjustment plate (803) to switch the positional correspondence between the connecting grooves (802) and the plate body part with filter holes and the adjustment grooves (804).

5. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 4, characterized in that, The adjusting plate (803) is slidably sleeved with the connecting sleeve (7), the adjusting plate (803) is fixedly connected with the probe rod (10), one end of the balance spring (11) is fixedly connected with the adjusting plate (803), the adjusting plate (803) is slidably sleeved with the vessel body (1), and there is a space between the filter plate (801) and the inner wall of the vessel body (1).

6. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 4, characterized in that, The rotating ring (805) is fixedly sleeved with the filter plate (801), and the shape and number of the connecting groove (802) are adapted to the shape and number of the adjusting groove (804). Several adjusting grooves (804) are arranged at equal intervals.

7. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 4, characterized in that, A gear ring (806) is rotatably provided inside the adjusting plate (803), a gear (807) is rotatably provided on one side inside the adjusting plate (803), an adjusting shaft (13) is rotatably provided on one side of the adjusting plate (803), a fixing frame (14) is fixedly connected to one side of the bottom of the vessel body (1), a fixing cylinder (17) is fixedly provided on one side of the bottom of the vessel body (1), a transmission shaft (16) is rotatably engaged inside the fixing cylinder (17), and a second motor (15) is fixedly provided at the bottom of the fixing frame (14).

8. The reaction vessel for producing an environmentally friendly and weather-resistant automotive coating curing agent according to claim 7, characterized in that, The gear (807) meshes with the adjusting plate (803), the gear ring (806) is fixedly connected with the rotating ring (805), the bottom shaft of the adjusting shaft (13) is set as a flat key shaft, the adjusting shaft (13) is connected to the transmission shaft (16) through the flat key, and the output end of the second motor (15) is connected to the transmission shaft (16).

9. The reaction vessel for producing an environmentally friendly weather-resistant automotive coating curing agent according to claim 7, characterized in that, A plurality of baffles (808) are fixedly provided in the adjustment groove (804). The baffles (808) are arranged in a circumferential direction in the corresponding adjustment groove (804) at equal intervals. The baffles (808) are used to close the filter holes when the filter plate (801) is rotated to a preset angle relative to the adjustment plate (803).

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