A catalyst feeding device in synthesis of high hydrophobic polyester polyol

Abstract

The utility model provides a kind of catalyst feeding equipment in high hydrophobic polyester polyol synthesis, it is related to catalyst feeding technology field including, the top of mounting panel is fixedly connected with a set of support frame.The utility model, through the unique weighing feeding mechanism design, utilizes the synergic cooperation of electric telescopic link, rotating part, transmission rod and rotating shaft seat, the flexible movement of feeding container in multidimensional space is realized, compared with traditional catalyst feeding equipment, the design can be according to different synthesis process demand, accurately catalyst is fed to specified position, greatly improve the accuracy and flexibility of feeding, simultaneously, multidimensional movement mode makes that equipment can adapt to various complex reaction kettle structure and layout, avoids the deviation caused by position limit and feeds, ensures the uniform distribution of catalyst in high hydrophobic polyester polyol synthesis process, to improve the quality and stability of synthetic product.

Description

Technical Field

[0001] This utility model relates to the field of catalyst delivery technology, and in particular to a catalyst delivery device for the synthesis of highly hydrophobic polyester polyols. Background Technology

[0002] Against the backdrop of the booming development of industries such as new energy and high-end equipment manufacturing, the demand for highly hydrophobic polyester polyols, as high-performance polymer materials, continues to rise in fields such as coatings, adhesives, and polyurethane elastomers. Their synthesis process requires extremely precise catalyst dosing; the amount of catalyst added, the timing of its addition, and the uniformity of its distribution directly affect the polymerization rate, the molecular structure of the product, and the performance of the final product. With intensifying industry competition, companies are paying increasing attention to the stability of the synthesis process, the uniformity of product quality, and the control of production costs. Traditional catalyst dosing methods are no longer sufficient to meet the demands of modern large-scale, high-precision production, necessitating more intelligent and efficient dosing equipment to upgrade the process.

[0003] The existing technology has the following shortcomings:

[0004] 1) Low accuracy and poor stability in catalyst dosing: Traditional catalyst dosing equipment often uses manual metering or extensive mechanical dosing, such as relying on gravity flow or simple screw conveying. Manual operation is easily affected by subjective factors, resulting in large metering errors and significant batch-to-batch differences. Mechanical dosing equipment lacks real-time monitoring and feedback mechanisms, and cannot dynamically adjust the dosing amount according to the state of the material in the reactor. In the synthesis of highly hydrophobic polyester polyols, even a small deviation in catalyst dosage can lead to fluctuations in reaction rate and uneven molecular weight distribution of the product, affecting key indicators such as hydrophobicity and mechanical properties. 2) Insufficient flexibility and weak adaptability: Existing equipment has a fixed structure, and the dosing position and angle are difficult to adjust. It cannot be adapted to reactors of different specifications and layouts, nor can it meet the needs of diverse synthesis processes. For example, some reactors require catalyst to be injected from a specific height and angle to promote mixing, which is difficult to achieve with traditional equipment. Utility Model Content

[0005] This utility model mainly provides a catalyst feeding device for the synthesis of highly hydrophobic polyester polyols, which facilitates accurate weighing and reduces raw material waste.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a catalyst dispensing device for the synthesis of highly hydrophobic polyester polyols, comprising: a mounting plate; a set of support frames fixedly connected to the top of the mounting plate; a set of weighing and dispensing mechanisms fixedly connected to the top of the mounting plate; the weighing and dispensing mechanism comprising a set of third rotating shaft seats; a first rotating component rotatably connected inside each of the third rotating shaft seats; an electric telescopic rod fixedly connected to the outer surface of each of the first rotating components; a second rotating component fixedly connected to the output end of each of the electric telescopic rods; a fourth rotating shaft seat rotatably connected to the outer surface of each of the second rotating components; a first transmission rod fixedly connected to the outer surface of each of the fourth rotating shaft seats; and a rotating seat rotatably connected to the outer surface of each of the first transmission rods via a shaft.

[0007] Preferably, the outer surfaces of each set of rotating seats are rotatably connected to a second transmission rod via a shaft, and the outer surfaces of each set of rotating seats are fixedly connected to a fixing plate.

[0008] Preferably, the outer surface of the support frame is fixedly connected with a first rotating shaft seat and a second rotating shaft seat.

[0009] Preferably, the outer surface of the first rotating shaft seat is rotatably connected to the outer surface of the shaft and the first transmission rod, and the outer surface of the second rotating shaft seat is rotatably connected to the outer surface of the shaft and the second transmission rod.

[0010] Preferably, a placement platform is fixedly installed on the opposite side of a set of fixed plates, and a limiting plate is fixedly connected to the opposite side of the placement platform.

[0011] Preferably, a set of fixing seats is fixedly installed on the outer surface of the placement platform, and a limiting rod is movably engaged on the opposite side of the set of fixing seats.

[0012] Preferably, the placement platform contains a delivery container, and the outer surface of the delivery container is provided with a guide plate.

[0013] Preferably, the outer surface of the placement platform is provided with a weight sensing element, and the top of the mounting plate is provided with a passage plug.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, through a unique weighing and dispensing mechanism design, the coordinated operation of the electric telescopic rod, rotating parts, transmission rod, and rotating shaft seat enables the dispensing container to move flexibly in multi-dimensional space. Compared with traditional catalyst dispensing equipment, this design can accurately dispense the catalyst to the designated position according to different synthesis process requirements, greatly improving the accuracy and flexibility of dispensing. At the same time, the multi-dimensional movement mode allows the equipment to adapt to various complex reactor structures and layouts, avoiding dispensing deviations caused by positional limitations, ensuring the uniform distribution of catalyst during the synthesis of highly hydrophobic polyester polyols, thereby improving the quality and stability of the synthesized products.

[0016] 2. In this utility model, the weight sensing element can monitor the weight of the catalyst in the dosing container in real time and accurately. During the dosing process, when the preset dosing amount is reached, the system can immediately stop the dosing operation, realizing the quantitative dosing of the catalyst. This is in stark contrast to the difficulty in accurately controlling the dosing amount in the prior art, effectively avoiding the impact of too much or too little catalyst on the synthesis reaction, reducing the waste of raw materials, and lowering production costs. In addition, the limiting plate, fixing seat, and limiting rod on the placement platform provide stable fixation and limiting of the dosing container, preventing the container from shaking or shifting during movement, further ensuring the accuracy of weighing and dosing. Moreover, the setting of the access plug facilitates the connection between the equipment and the external control system, realizing the automated control and remote operation of the equipment, improving production efficiency and management convenience. Attached Figure Description

[0017] Figure 1 This utility model provides a perspective view of a catalyst feeding device for the synthesis of highly hydrophobic polyester polyols;

[0018] Figure 2 This utility model presents another perspective view of a catalyst delivery device in the synthesis of highly hydrophobic polyester polyols;

[0019] Figure 3 This utility model provides a three-dimensional mechanical structure diagram of a catalyst feeding device in the synthesis of highly hydrophobic polyester polyols.

[0020] Figure 4 This invention provides a three-dimensional, exploded view of the mechanical structure of a catalyst delivery device for the synthesis of highly hydrophobic polyester polyols.

[0021] Figure 5 This invention presents a three-dimensional view of another part of the mechanical structure of a catalyst delivery device in the synthesis of highly hydrophobic polyester polyols.

[0022] Legend: 1. Mounting plate; 2. Support frame; 21. First rotating shaft seat; 22. Second rotating shaft seat; 3. Weighing and dispensing mechanism; 301. Third rotating shaft seat; 302. First rotating component; 303. Electric telescopic rod; 304. Second rotating component; 305. Fourth rotating shaft seat; 306. First transmission rod; 307. Rotating seat; 308. Second transmission rod; 309. Fixing plate; 4. Dispensing container; 5. Placement platform; 51. Limiting plate; 6. Fixing seat; 7. Limiting rod; 8. Guide plate; 9. Pathway plug; 10. Weight sensing element. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see the appendix Figure 1 - Appendix Figure 5 As shown, this utility model provides a technical solution: a catalyst feeding device for the synthesis of highly hydrophobic polyester polyols, comprising: a mounting plate 1; a set of support frames 2 fixedly connected to the top of the mounting plate 1; a set of weighing and feeding mechanisms 3 fixedly connected to the top of the mounting plate 1; the set of weighing and feeding mechanisms 3 includes a set of third rotating shaft seats 301; a set of first rotating parts 302 rotatably connected inside each set of third rotating shaft seats 301; an electric telescopic rod 303 fixedly connected to the outer surface of each set of first rotating parts 302; a set of second rotating parts 304 fixedly connected to the output end of each set of electric telescopic rods 303; a set of fourth rotating shaft seats 305 rotatably connected to the outer surface of each set of second rotating parts 304; and a set of fourth rotating shaft seats 305... The outer surface of the rotating shaft seat 305 is fixedly connected to the first transmission rod 306. The outer surface of a group of first transmission rods 306 is rotatably connected to the rotating seat 307 via the shaft. The mounting plate 1 serves as the basic load-bearing structure of the equipment, providing a stable mounting plane for the entire catalyst dispensing equipment, ensuring the benchmark for the installation of each component and the stability of the equipment during operation. The support frame 2 enhances the overall structural strength of the equipment, further stabilizing the equipment architecture, while providing higher mounting support points for other components, optimizing the spatial layout of the equipment, and directly fixing the weighing and dispensing mechanism 3 to the top of the mounting plate 1, shortening the power transmission path, reducing intermediate losses, facilitating the overall control and debugging of the equipment, and ensuring the high efficiency of catalyst dispensing.

[0026] Please see the appendix Figure 1- Appendix Figure 5 As shown, the outer surfaces of a set of rotating seats 307 are all rotatably connected to a second transmission rod 308 via a shaft, and the outer surfaces of a set of rotating seats 307 are all fixedly connected to a fixing plate 309. The second transmission rod 308 cooperates with the rotating seats 307 to further expand the movement range of the mechanism; the fixing plate 309 provides a stable installation base for the placement platform 5, ensuring that the placement platform 5 remains stable during movement.

[0027] Please see the appendix Figure 1 - Appendix Figure 5 As shown, the outer surface of the support frame 2 is fixedly connected with a first rotating shaft seat 21 and a second rotating shaft seat 22. The first rotating shaft seat 21 and the second rotating shaft seat 22 provide rotation fulcrums for the first transmission rod 306 and the second transmission rod 308, thereby enhancing the stability of the transmission structure and ensuring the effective transmission of force during the transmission process.

[0028] Please see the appendix Figure 1 - Appendix Figure 5 As shown, the outer surface of the first rotating shaft seat 21 is rotatably connected to the outer surface of the first transmission rod 306 via a shaft, and the outer surface of the second rotating shaft seat 22 is rotatably connected to the outer surface of the second transmission rod 308 via a shaft. The shaft connection method ensures the flexibility of rotation of the first transmission rod 306 and the second transmission rod 308, and at the same time, in cooperation with the rotating shaft seat, restricts their movement trajectory, making the delivery action more precise and controllable.

[0029] Please see the appendix Figure 1 - Appendix Figure 5 As shown, a placement platform 5 is fixedly installed on the opposite side of a set of fixed plates 309. A limiting plate 51 is fixedly connected to the opposite side of the placement platform 5. The placement platform 5 is used to support the delivery container 4, and the limiting plate 51 limits and fixes the delivery container 4 to prevent the container from shifting during equipment operation, thus ensuring the accuracy of catalyst weighing and delivery.

[0030] Please see the appendix Figure 1 - Appendix Figure 5 As shown, a set of fixing seats 6 are fixedly installed on the outer surface of the placement platform 5. A limiting rod 7 is movably attached to the opposite side of the set of fixing seats 6. The fixing seats 6 and the limiting rod 7 further enhance the fixing effect on the delivery container 4, while facilitating the quick loading and unloading of the container and improving the ease of use of the equipment.

[0031] Please see the appendix Figure 1 - Appendix Figure 5 As shown, the platform 5 has an internal container 4 for dispensing catalyst, and the outer surface of the container 4 is provided with a guide plate 8. The container 4 is used to store catalyst, and the guide plate 8 can guide the catalyst to flow out smoothly, control the dispensing speed and flow direction, avoid catalyst spillage, and ensure the cleanliness and efficiency of the dispensing process.

[0032] Please see the appendix Figure 1 - Appendix Figure 5 As shown, a weight sensing element 10 is provided on the outer surface of the placement platform 5, and a channel plug 9 is provided on the top of the mounting plate 1. The weight sensing element 10 monitors the weight of the catalyst in the dispensing container 4 in real time to achieve accurate weighing and quantitative dispensing; the channel plug 9 provides an interface for the electrical connection and signal transmission of the equipment, which facilitates the integration of the equipment with the external control system and improves the degree of automation.

[0033] Operating Instructions and Working Principle of this Device: Operating Instructions: Equipment Preparation: Place the dispensing container 4 on the placement platform 5, ensuring it is in close contact with the weight sensing element 10. Position and fix the dispensing container 4 using the limiting plate 51, fixing seat 6, and limiting rod 7 to prevent displacement during operation. Check the wiring connections of the electric telescopic rod 303, weight sensing element 10, and other electrical equipment. After confirming everything is correct, turn on the power. Catalyst Loading: Open the dispensing container 4 and load the catalyst required for the synthesis of highly hydrophobic polyester polyols into the container. After loading, close the dispensing container 4, ensuring a good seal. Parameter Setting: According to the process requirements of the highly hydrophobic polyester polyol synthesis, set the target dispensing weight of the catalyst through the equipment control system. Simultaneously, adjust the extension of the electric telescopic rod 303 according to the location of the reactor or synthesis vessel. The length reduction and motion parameters of each transmission component are adjusted for the following operation: The equipment is started, and the weighing and dispensing mechanism 3 begins to work. The electric telescopic rod 303 extends and retracts according to the set parameters, driving the first rotating component 302, the second rotating component 304, and other components to move. Through the transmission of the first transmission rod 306 and the second transmission rod 308, the placement platform 5 and the dispensing container 4 are moved to the target dispensing position. During the movement, the weight sensing element 10 monitors the weight of the catalyst in the dispensing container 4 in real time and feeds the data back to the control system. When the set dispensing weight is reached, the control system controls the electric telescopic rod 303 to stop moving, and the catalyst is slowly and accurately dispensed to the designated position through the guide plate 8. Dispensing ends: After dispensing is completed, the weighing and dispensing mechanism 3 drives the placement platform 5 and the dispensing container 4 back to the initial position. If dispensing is required again, the above steps are repeated.If the equipment is not used for a long time, turn off the power, clean the catalyst residue on the surface of the dispensing container 4 and the equipment, and perform equipment maintenance. Working principle: Power transmission principle: The electric telescopic rod 303 is the core power component. After being powered on, it extends and retracts. The extension and retraction of the electric telescopic rod 303 drives the first rotating component 302 to rotate around the third rotating shaft seat 301. The first rotating component 303 transmits power to the fourth rotating shaft seat 305 through the connection of the second rotating component 304, thereby causing the first transmission rod 306 to move. The first transmission rod 306 is rotatably connected to the rotating seat 307 via a shaft, transmitting the motion to the second transmission rod 308. The first rotating shaft seat 21 and the second rotating shaft seat 22 provide rotation fulcrums for the first transmission rod 306 and the second transmission rod 308, respectively. Through the coordinated movement of the two transmission rods, the placement platform 5 can move in multiple dimensions within space, accurately transporting the dispensing container 4 to the target location. Weighing control principle. The principle is as follows: The weight sensing element 10 detects the total weight of the container 4 and catalyst on the placement platform 5 in real time, and converts the weight signal into an electrical signal and transmits it to the equipment control system. The control system compares the received weight data with the preset target weight. When the detected weight reaches the target value, the control system immediately issues a command to stop the extension and retraction of the electric telescopic rod 303, thereby accurately controlling the amount of catalyst added. The structural stability principle is as follows: The mounting plate 1 provides a stable foundation support for the entire equipment, the support frame 2 enhances the structural strength of the equipment, and the limiting plate 51, fixed seat 6, and limiting rod 7 limit and fix the container 4, ensuring the stability of the container 4 during movement. The cooperation between the rotating shaft seats, transmission rods, and rotating parts ensures the stability of power transmission and the accuracy of the movement trajectory, keeping the equipment stable during operation and avoiding the impact of shaking or deviation on the accuracy of catalyst addition.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A catalyst dispensing device for the synthesis of highly hydrophobic polyester polyols, characterized in that: Mounting plate (1), a set of support frame (2) is fixedly connected to the top of the mounting plate (1), and a set of weighing and dispensing mechanism (3) is fixedly connected to the top of the mounting plate (1). A weighing and dispensing mechanism (3) includes a set of third rotating shaft seats (301), each of the third rotating shaft seats (301) is rotatably connected to a first rotating component (302), each of the first rotating components (302) is fixedly connected to an electric telescopic rod (303) on its outer surface, each of the electric telescopic rods (303) is fixedly connected to a second rotating component (304) at its output end, each of the second rotating components (304) is rotatably connected to a fourth rotating shaft seat (305) on its outer surface, each of the fourth rotating shaft seats (305) is fixedly connected to a first transmission rod (306) on its outer surface, and each of the first transmission rods (306) is rotatably connected to a rotating seat (307) via a shaft on its outer surface.

2. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 1, characterized in that; The outer surfaces of each set of rotating seats (307) are rotatably connected to a second transmission rod (308) via a shaft, and the outer surfaces of each set of rotating seats (307) are fixedly connected to a fixing plate (309).

3. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 2, characterized in that: The outer surface of the support frame (2) is fixedly connected to a first rotating shaft seat (21) and a second rotating shaft seat (22).

4. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 3, characterized in that: The outer surface of the first rotating shaft seat (21) is rotatably connected to the outer surface of the shaft and the first transmission rod (306), and the outer surface of the second rotating shaft seat (22) is rotatably connected to the outer surface of the shaft and the second transmission rod (308).

5. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 2, characterized in that: A placement platform (5) is fixedly installed on the opposite side of a set of fixed plates (309), and a limiting plate (51) is fixedly connected to the opposite side of the placement platform (5).

6. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 5, characterized in that: A set of fixed seats (6) are fixedly installed on the outer surface of the placement platform (5), and a limiting rod (7) is movably engaged on the opposite side of the set of fixed seats (6).

7. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 6, characterized in that: The placement platform (5) contains a delivery container (4), and the outer surface of the delivery container (4) is provided with a guide plate (8).

8. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 5, characterized in that: The outer surface of the placement platform (5) is provided with a weight sensing element (10), and the top of the mounting plate (1) is provided with a passage plug (9).

9. The catalyst feeding device for the synthesis of highly hydrophobic polyester polyols according to claim 7, characterized in that: The outer surface of the dispensing container (4) and the limiting rod (7) cooperate with each other.

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