Stirring reaction equipment for processing waterborne polyurethane emulsion

Abstract

The utility model discloses stirring reaction equipment for processing waterborne polyurethane emulsion, and relates to the field of waterborne polyurethane emulsion. The stirring device comprises a stirring device body, a feeding port is formed in one side of the top of the stirring device body, one side of a feeding pipe is connected with a first pipeline and a second pipeline, and control valves are arranged on the first pipeline and the second pipeline. The water-based polyurethane emulsion raw materials pass through the second pipeline, the feeding pipe and the feeding port and finally enter the stirring equipment, then the control valve on the first pipeline is opened, water flow can flow out from an external water source, and the water source can wash away the water-based polyurethane emulsion raw materials remaining on the feeding pipe and the feeding port through the first pipeline, the feeding pipe and the feeding port. And the trouble of manual cleaning of workers is avoided, the working intensity of the workers is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waterborne polyurethane emulsions, specifically a stirring reaction device for processing waterborne polyurethane emulsions. Background Technology

[0002] Waterborne polyurethane emulsion is an environmentally friendly synthetic material that uses water as a dispersion medium. It is prepared by internal emulsification and has the advantages of being non-flammable, non-toxic, non-polluting, energy-saving, and easy to process. The mixing equipment in its processing is the key to ensuring production efficiency and product quality. It usually consists of a reaction vessel, a stirrer, a transmission and temperature control system, etc., and aims to achieve full mixing and chemical reaction of raw materials.

[0003] Existing stirring and reaction equipment for waterborne polyurethane emulsion processing is used to achieve thorough mixing, homogenization, and chemical reaction of waterborne polyurethane emulsion raw materials. However, when the waterborne polyurethane emulsion raw materials enter the stirring and reaction equipment, they need to be fed into the equipment through the feed inlet. The feed inlet inevitably gets contaminated with waterborne polyurethane emulsion raw materials, which requires workers to clean the contaminated raw materials from the feed inlet. This not only increases the workload of workers but also reduces production efficiency, thereby reducing the ease of use of the stirring and reaction equipment for waterborne polyurethane emulsion processing. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a stirring and reaction device for processing waterborne polyurethane emulsions, so as to solve the technical problem that when raw materials need to be put into the device through the feed inlet, the waterborne polyurethane emulsion raw materials may be contaminated at the feed inlet.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stirring reaction device for processing waterborne polyurethane emulsion, comprising a stirring device, wherein a feed inlet is provided on one side of the top of the stirring device, and a feed pipe is connected to the top of the feed inlet via a flange, and a first pipe and a second pipe are respectively connected to one side of the feed pipe, and a control valve is provided on both the first pipe and the second pipe.

[0006] By adopting the above technical solution, the feed pipe of the mixing equipment is tightly connected to the feed inlet through a flange, so that the raw material can enter the mixing equipment accurately. Then, the control valve on the second pipe is opened and the control center is started, connecting the metering pump to the external power supply and starting work. The waterborne polyurethane emulsion raw material flows out from the storage bin, passing through the second pipe, feed pipe and feed inlet in sequence, and finally smoothly enters the mixing equipment. When the raw material reaches the predetermined metering, the control center will issue an instruction to close the metering pump and the control valve on the second pipe to stop the continued delivery of raw material. Immediately afterwards, the control valve on the first pipe is opened and the water pump is connected to the external power supply. At this time, water flows out from the external water source, passing through the first pipe, feed pipe and feed inlet in sequence, and finally also enters the mixing equipment. Finally, the water and waterborne polyurethane emulsion are mixed. Since the water source enters after the raw material is delivered, it will effectively wash away the waterborne polyurethane emulsion raw material remaining on the feed pipe and feed inlet.

[0007] Furthermore, the other end of the first pipeline is connected to an external water source via a liquid pump, and the other end of the second pipeline is connected to an external water-based polyurethane emulsion raw material storage device via a metering pump.

[0008] By adopting the above technical solution, it is ensured that the water source can be stably and continuously supplied to the stirring reaction equipment. Simply open the control valve on the first pipeline and start the liquid pump, and the water will flow smoothly through the first pipeline, the feed pipe and the feed port.

[0009] Furthermore, the lower flange of the second pipe is connected to a collection bin for the water-based polyurethane emulsion raw material entering the mixing equipment.

[0010] By adopting the above technical solution, it plays a crucial role in the operation of the mixing equipment. When the waterborne polyurethane emulsion raw material is transported to the mixing equipment through the second pipeline, if the raw material fails to fully enter the mixing equipment and leaks or overflows due to some reason, such as pipeline blockage, pump failure or operation error, the collection bin can collect the leaked or overflowed raw material in a timely manner.

[0011] Furthermore, the second pipe is made of polyurethane, while the first pipe is made of alloy steel.

[0012] By adopting the above technical solution, polyurethane material has significant advantages for conveying waterborne polyurethane emulsion raw materials. Polyurethane material has good corrosion resistance and wear resistance, and can effectively resist the corrosion and wear of waterborne polyurethane emulsion raw materials.

[0013] Furthermore, the top of the stirring device is equipped with a drive motor, which is electrically connected to an external power source through a control center. The output end of the drive motor is equipped with a stirring shaft, and stirring blades are mounted on the stirring shaft.

[0014] By adopting the above technical solution, the drive motor can be started and stopped under the precise command of the control center, thereby ensuring the accuracy and controllability of the stirring process.

[0015] Furthermore, a support frame is installed on the outside of the mixing device, and a support bracket is provided below the support frame, arranged in a rectangular array.

[0016] By adopting the above technical solution, additional stability and support are provided. The support frame can disperse the vibration and impact force generated by the mixing equipment during operation, thereby protecting the equipment from damage.

[0017] Furthermore, the bottom of the mixing device is provided with a discharge port to provide an output space for the mixed water-based polyurethane emulsion.

[0018] By adopting the above technical solution, a convenient output space is provided for the well-stirred waterborne polyurethane emulsion. During the stirring process, when the waterborne polyurethane emulsion reaches the required stirring effect, it can be smoothly discharged by opening the discharge port, thereby completing the entire stirring production process.

[0019] In summary, the present invention has the following main advantages:

[0020] This invention utilizes a first pipe, a second pipe, and a control valve. First, a flange tightly connects the feed pipe to the feed inlet at the top of the mixing equipment, ensuring smooth entry of the raw material. Next, the control valve on the second pipe is opened, and the control center is activated to connect the metering pump and external power supply. This allows the waterborne polyurethane emulsion raw material to flow from the storage tank, through the second pipe, the feed pipe, and the feed inlet, ultimately entering the mixing equipment. Once the raw material reaches the predetermined metering level, the control center closes the metering pump and the control valve on the second pipe, stopping the material delivery. Simultaneously, the control valve on the first pipe is opened, and the water pump is activated to connect to the external power supply. Water then flows from an external water source, through the first pipe, the feed pipe, and the feed inlet, also entering the mixing equipment. Finally, the water and waterborne polyurethane emulsion are mixed. Since the water source enters after the raw material, it effectively washes away any residual waterborne polyurethane emulsion raw material on the feed pipe and feed inlet, eliminating the need for manual cleaning by workers. This not only reduces worker workload but also improves production efficiency, making the mixing and reaction equipment for waterborne polyurethane emulsion processing more convenient to use. Attached Figure Description

[0021] Figure 1This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Mixing equipment; 2. Drive motor; 3. Feed inlet; 4. Flange; 5. Feed pipe; 6. First pipe; 7. Second pipe; 8. Collection bin; 9. Support frame; 10. Control valve; 11. Discharge outlet; 12. Mixing blades; 13. Mixing shaft. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", and "setting" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] A stirring reaction apparatus for processing waterborne polyurethane emulsions, such as Figures 1-4As shown, the system includes a mixing device 1. A feed inlet 3 is located on one side of the top of the mixing device 1. A feed pipe 5 is connected to the top of the feed inlet 3 via a flange 4. A first pipe 6 and a second pipe 7 are connected to one side of the feed pipe 5. Control valves 10 are installed on both the first pipe 6 and the second pipe 7. The feed pipe 5 of the mixing device 1 is tightly connected to the feed inlet 3 via the flange 4 to ensure accurate entry of the raw material into the mixing device 1. Then, the control valve 10 on the second pipe 7 is opened, and the control center is activated, connecting the metering pump to an external power source. The water-based polyurethane emulsion raw material flows out of the storage chamber, passing sequentially through the second pipe 7, the feed pipe 5, and the feed inlet 3, finally entering the mixing device 1 smoothly. When the raw material reaches the predetermined metering value, the control center will... The system issues a command to close the control valve 10 on the metering pump and the second pipeline 7 to stop the continued delivery of raw materials. Immediately afterward, the control valve 10 on the first pipeline 6 is opened, and the water pump is connected to the external power supply. At this time, water flows out from the external water source, passing through the first pipeline 6, the feed pipe 5, and the feed port 3 in sequence, and finally enters the mixing equipment 1. The water is then mixed with the waterborne polyurethane emulsion. Since the water source enters after the raw materials are delivered, it effectively washes away the waterborne polyurethane emulsion raw materials remaining on the feed pipe 5 and the feed port 3, avoiding the tedious process of manual cleaning by workers. This not only reduces the workload of workers but also improves production efficiency, making the use of the entire mixing and reaction equipment for waterborne polyurethane emulsion processing more convenient and efficient.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The other end of the first pipe 6 is connected to an external water source via a liquid pump, and the other end of the second pipe 7 is connected to an external water-based polyurethane emulsion raw material storage device via a metering pump. This ensures a stable and continuous supply of water to the stirring reaction equipment. Simply open the control valve 10 on the first pipe 6 and start the liquid pump, and the water will flow smoothly through the first pipe 6, the feed pipe 5, and the feed port 3. While providing a certain water source for the water-based polyurethane emulsion, the water source will also wash away any residual raw materials, simplifying the cleaning process and improving cleaning efficiency. At the same time, the other end of the second pipe 7 is connected to the external water-based polyurethane emulsion raw material storage device via a metering pump. This setup enables precise metering and stable delivery of raw materials. During processing, the operating status of the metering pump is controlled by the control center, which can accurately control the amount of raw materials added, avoiding waste and shortage. This precise metering method not only improves the quality and stability of the product but also reduces production costs.

[0032] See Figure 1 , Figure 2 , Figure 3The lower flange of the second pipe 7 is connected to a collection bin 8, which is used to collect the water-based polyurethane emulsion raw material entering the mixing equipment 1. It plays a crucial role in the operation of the mixing equipment 1. When the water-based polyurethane emulsion raw material is transported to the mixing equipment 1 through the second pipe 7, if the raw material fails to enter the mixing equipment 1 completely due to some reason, such as pipe blockage, pump failure or operation error, and leakage or overflow occurs, the collection bin 8 can collect the leaked or overflowed raw material in time. This not only avoids the waste of raw material, but also prevents the raw material from polluting the surrounding environment, thereby protecting the cleanliness and hygiene of the production environment.

[0033] See Figure 1 , Figure 2 , Figure 3 The second pipe 7 is made of polyurethane, while the first pipe 6 is made of alloy steel. Polyurethane has significant advantages for conveying water-based polyurethane emulsion raw materials. Polyurethane has good corrosion resistance and wear resistance, which can effectively resist the corrosion and wear of water-based polyurethane emulsion raw materials, thereby extending the service life of the pipe. In addition, polyurethane also has good flexibility and elasticity, which can adapt to pressure changes and vibrations during the raw material transportation process, ensuring smooth transportation of raw materials. Meanwhile, the use of alloy steel for the first pipe 6 also brings many benefits. Alloy steel has high strength and hardness, which can withstand greater pressure and impact, ensuring the stability and safety of water flow during transportation. Moreover, alloy steel also has good high temperature and low temperature resistance, which can maintain stable performance under different temperature environments, ensuring smooth water flow.

[0034] See Figure 1 , Figure 2 , Figure 3 The top of the mixing device 1 is equipped with a drive motor 2, which is electrically connected to an external power source through a control center. The output end of the drive motor 2 is equipped with a stirring shaft 13, and stirring blades 12 are mounted on the stirring shaft 13. This allows the drive motor 2 to start and stop under the precise commands of the control center, thereby ensuring the accuracy and controllability of the mixing process. As a power source, the drive motor 2 provides stable and powerful power support for the mixing device. At the same time, the output end of the drive motor 2 is connected to the stirring shaft 13, and the stirring blades 12 are mounted on the stirring shaft 13. When the drive motor 2 starts, it drives the stirring shaft 13 and the stirring blades 12 to rotate. During the rotation, the stirring blades 12 can fully stir the water-based polyurethane emulsion raw materials, ensuring that the raw materials are uniformly mixed in the mixing device 1. This not only improves the quality and stability of the product, but also optimizes the production process, making the mixing process more efficient and reliable.

[0035] See Figure 1 , Figure 2 , Figure 3A support frame 9 is installed on the outside of the mixing device 1. A support frame is set below the support frame 9 in a rectangular array, providing additional stability and support. The support frame 9 can disperse the vibration and impact force generated by the mixing device 1 during operation, thereby protecting the device from damage. At the same time, the support frame 9 also increases the overall structural strength of the device, improving its durability and service life. In addition, the support frame arranged in a rectangular array below the support frame 9 can evenly distribute the weight and load of the device, ensuring the stability and balance of the device during operation. The support frame also takes into account the convenience of installation and maintenance, allowing staff to easily install, debug and maintain the device.

[0036] See Figure 1 , Figure 2 , Figure 3 The bottom of the mixing device 1 is provided with a discharge port 11, which provides an output space for the mixed waterborne polyurethane emulsion. During the mixing process, when the waterborne polyurethane emulsion reaches the required mixing effect, it can be smoothly discharged by opening the discharge port 11, thereby completing the entire mixing production process. This not only improves production efficiency but also ensures timely output of the product, avoiding quality problems caused by excessive retention time. At the same time, the discharge port 11 also helps with the cleaning and maintenance of the mixing device 1. After mixing, the residue inside the device can be discharged through the discharge port 11, facilitating subsequent cleaning work. This not only keeps the equipment clean and hygienic but also extends the service life of the equipment.

[0037] The implementation principle of this utility model is as follows: First, the feed pipe 5 is connected to the feed port 3 through the flange 4. Then, the control valve 10 on the second pipe 7 is opened, and the control center controls the metering pump to be electrically connected to the external power supply, so that the water-based polyurethane emulsion raw material flows from the storage bin into the second pipe 7. After that, it flows through the second pipe 7, the feed pipe 5, and the feed port 3 until it reaches the stirring equipment 1. After the water-based polyurethane emulsion raw material reaches a certain metering level, the control center controls the metering pump to be turned off and closes the control valve 10 on the second pipe 7. Then, the control valve 10 on the first pipe 6 is opened, and the control center controls the water pump to be electrically connected to the external power supply, so that the water flows from the external water source to the first pipe. 6. The water flows into the mixing equipment 1 through the feed pipe 5 and feed inlet 3, and finally the water and waterborne polyurethane emulsion are mixed. Since the waterborne polyurethane emulsion raw material and water both enter through the feed pipe 5 and feed inlet 3, and the waterborne polyurethane emulsion raw material is first transported into the reaction equipment, and then the water is transported into the reaction equipment, the subsequent water source will flush the waterborne polyurethane emulsion raw material contaminated with the feed pipe 5 and feed inlet 3 into the reaction equipment. This avoids the need for workers to clean the feed inlet 3 and feed pipe 5 to remove the waterborne polyurethane emulsion raw material. This not only reduces the labor intensity of workers, but also improves production efficiency, thereby improving the ease of use of the mixing reaction equipment for waterborne polyurethane emulsion processing.

[0038] All parts not covered in this utility model are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A stirring and reaction apparatus for processing waterborne polyurethane emulsions, characterized in that: The equipment includes a mixing device (1), which has a feed inlet (3) on one side of its top. The top of the feed inlet (3) is connected to a feed pipe (5) via a flange (4). A first pipe (6) and a second pipe (7) are connected to one side of the feed pipe (5). A control valve (10) is installed on both the first pipe (6) and the second pipe (7).

2. The stirring reaction equipment for processing waterborne polyurethane emulsions according to claim 1, characterized in that: The other end of the first pipe (6) is connected to an external water source via a liquid pump, and the other end of the second pipe (7) is connected to an external water-based polyurethane emulsion raw material storage device via a metering pump.

3. The stirring reaction equipment for processing waterborne polyurethane emulsions according to claim 1, characterized in that: The lower flange of the second pipe (7) is connected to a collection bin (8) for the water-based polyurethane emulsion raw material to enter the mixing equipment (1).

4. The stirring reaction equipment for processing waterborne polyurethane emulsions according to claim 1, characterized in that: The second pipe (7) is made of polyurethane, and the first pipe (6) is made of alloy steel.

5. The stirring reaction equipment for processing waterborne polyurethane emulsions according to claim 1, characterized in that: The top of the stirring device (1) is equipped with a drive motor (2) and is electrically connected to an external power source through a control center. The output end of the drive motor (2) is equipped with a stirring shaft (13) and stirring blades (12) are provided on the stirring shaft (13).

6. The stirring reaction equipment for processing waterborne polyurethane emulsions according to claim 1, characterized in that: The mixing device (1) is equipped with a support frame (9) on its outside. A support frame is provided below the support frame (9) and arranged in a rectangular array.

7. The stirring reaction equipment for processing waterborne polyurethane emulsions according to claim 1, characterized in that: The bottom of the mixing device (1) is provided with a discharge port (11) to provide an output space for the well-mixed water-based polyurethane emulsion.

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