Device for separating out low molecular resin in reaction mother liquor

Abstract

The utility model relates to the field of chemical engineering, in particular to a device for separating out low molecular resin in reaction mother liquor. The device comprises a reaction kettle, a conveying pipe, a framework, a microporous filtering membrane, a spiral conveying strip and a driving assembly, the reaction kettle is used for containing the mother liquor for precipitation reaction, the conveying pipe is rotatably connected to the center of the interior of the reaction kettle, the framework is fixedly connected to the outer side of the conveying pipe, and the microporous filtering membrane covers the outer surface of the framework. According to the device for separating out the low-molecular resin in the reaction mother liquor, the high-efficiency separation of the solid low-molecular resin in the mother liquor is realized through the rotation of the conveying pipe and the stirring of the spiral conveying strip, and meanwhile, the injection of low-temperature water and the auxiliary action of ultrasonic waves are combined, so that the separation efficiency is further improved, and the production cost is reduced; the stirring effect of the spiral conveying strip can effectively prevent solid low-molecular resin from depositing in the reaction kettle, and the reaction kettle is kept clean and efficient.

Description

Technical Field

[0001] The utility model relates to the field of chemical engineering, in particular to a device for precipitating low molecular resin in reaction mother liquor. Background Art

[0002] In the chemical industry, the treatment of reaction mother liquor is a crucial link. Especially in the production process involving low molecular resin, as an important chemical raw material, low molecular resin has a wide range of applications in the fields of plastics, coatings, adhesives, etc. However, in the chemical reaction process, low molecular resin often mixes with various impurities, solvents, etc. to form a complex reaction mother liquor. How to efficiently and accurately precipitate low molecular resin from this complex mother liquor has always been an urgent problem to be solved in the chemical industry. Traditional precipitation methods include evaporation, crystallization, filtration, etc. However, these methods often have poor effects when dealing with complex reaction mother liquor, and there are problems such as low precipitation rate, low purity, and high energy consumption. In addition, traditional precipitation methods may also require a large amount of chemical additives or solvents, which not only increases the production cost but also may cause environmental pollution.

[0003] Therefore, it is necessary to provide a new device for precipitating low molecular resin in reaction mother liquor to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a device for precipitating low molecular resin in reaction mother liquor.

[0005] The device for precipitating low molecular resin in reaction mother liquor provided by the utility model includes:

[0006] A reaction kettle, which is used to accommodate the mother liquor for precipitation reaction;

[0007] A conveying pipe, which is rotatably connected to the center inside the reaction kettle;

[0008] A framework, which is fixedly connected to the outside of the conveying pipe;

[0009] A microporous filter membrane, which covers the outer surface of the framework and is used to precipitate solid low molecular resin from the reaction mother liquor during the reaction. The top of the microporous filter membrane is communicated with the top of the conveying pipe;

[0010] A spiral conveying strip, which is fixedly connected to the outside of the framework and is used to stir the mother liquor in the reaction kettle during the rotation of the conveying pipe;

[0011] A driving component, which is used to drive the conveying pipe to rotate.

[0012] Preferably, a kettle cover is provided on the top of the reaction kettle, and liquid injection pipes are equidistantly arranged on the top of the kettle cover.

[0013] Preferably, a liquid storage cylinder is provided at the bottom of the reaction kettle, and a filter screen is arranged inside the liquid storage cylinder.

[0014] Preferably, a frame is arranged outside the filter screen, and the frame is slidably inserted inside the liquid storage cylinder.

[0015] Preferably, the framework is arranged in a frustum shape.

[0016] Preferably, an ultrasonic sound generating device is installed outside the reaction kettle, and the output end of the ultrasonic sound generating device is arranged inside the reaction kettle.

[0017] Preferably, the driving assembly includes a motor and a belt transmission mechanism. A motor is installed on one side of the reaction kettle, and the output end of the motor is in transmission connection with the conveying pipe through the belt transmission mechanism.

[0018] Compared with the related technology, the device for precipitating low-molecular resin in the reaction mother liquor provided by the present utility model has the following beneficial effects:

[0019] The present utility model provides a device for precipitating low-molecular resin in the reaction mother liquor. Through the rotation of the conveying pipe and the agitation of the spiral conveying strip, the efficient precipitation of solid low-molecular resin in the mother liquor is realized. At the same time, combined with the injection of low-temperature water and the auxiliary effect of ultrasonic waves, the precipitation efficiency is further improved, the production cost is reduced, and the agitation of the spiral conveying strip can effectively prevent the deposition of solid low-molecular resin in the reaction kettle, keeping the reaction kettle clean and efficient, and the operation is convenient, which helps to maintain the purity and quality of the product. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the device for precipitating low-molecular resin in the reaction mother liquor provided by the present utility model;

[0021] Figure 2 is Figure 1 a schematic structural diagram of the reaction kettle shown;

[0022] Figure 3 is Figure 2 a schematic structural diagram of the liquid storage cylinder shown;

[0023] Figure 4 is Figure 2 a schematic cross-sectional view of the structure of the reaction kettle shown;

[0024] Figure 5 is Figure 4 a schematic diagram of the bottom structure of the microporous filter membrane shown.

[0025] Reference numerals in the figure: 1, reaction kettle; 2, delivery pipe; 3, framework; 4, microporous filtration membrane; 5, spiral conveyor strip; 6, drive assembly; 7, kettle cover; 8, liquid injection pipe; 9, liquid storage cylinder; 10, filter screen; 11, frame; 12, ultrasonic sound generating device; 13, motor; 14, belt drive mechanism. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] The following elaborates on the specific implementation of the present utility model in detail in conjunction with specific embodiments.

[0028] Please refer to Figures 1 to 5 , a device for precipitating low-molecular-weight resin in reaction mother liquor, the device for precipitating low-molecular-weight resin in reaction mother liquor includes:

[0029] Reaction kettle 1, which is used to hold mother liquor for precipitation reaction;

[0030] Delivery pipe 2, which is rotatably connected to the center inside reaction kettle 1;

[0031] Framework 3, which is fixedly connected to the outside of delivery pipe 2;

[0032] Microporous filtration membrane 4, which covers the outer surface of framework 3 and is used to precipitate solid low-molecular-weight resin from reaction mother liquor during the reaction process. The top of microporous filtration membrane 4 is connected to the top end of delivery pipe 2;

[0033] Spiral conveyor strip 5, which is fixedly connected to the outside of framework 3 and is used to agitate the mother liquor in reaction kettle 1 during the rotation of delivery pipe 2;

[0034] Drive assembly 6, which is used to drive delivery pipe 2 to rotate.

[0035] Please refer to Figures 1 to 5 , a kettle cover 7 is provided at the top of reaction kettle 1, and liquid injection pipes 8 are equidistantly arranged at the top of kettle cover 7;

[0036] It should be noted that: making the addition process of mother liquor more convenient, and at the same time allowing low-temperature water or other additives to be conveniently added through liquid injection pipe 8, so as to optimize the precipitation process. Injecting low-temperature water through liquid injection pipe 8 can effectively reduce the temperature of mother liquor, promote the precipitation of low-molecular-weight resin from mother liquor, and improve the precipitation efficiency and product quality;

[0037] Please refer to Figures 1 to 5A liquid storage cylinder 9 is provided at the bottom of the reaction kettle 1, and a filter screen 10 is provided inside the liquid storage cylinder 9;

[0038] It should be noted that the filter screen 10 inside the liquid storage cylinder 9 can effectively intercept and collect the tiny solid particles that have not been precipitated, ensuring the purity of the liquid part. This structure not only improves the efficiency of the precipitation process, but also helps the subsequent recovery and reuse of the liquid;

[0039] See also Figures 1 to 5 A frame 11 is provided outside the filter screen 10, and the frame 11 is slidably inserted into the liquid storage cylinder 9;

[0040] It should be noted that when enough solid particles have accumulated on the filter screen 10 and it needs to be cleaned or replaced, the filter screen 10 can be easily taken out for cleaning or replacement by simply sliding the frame 11 out of the liquid storage cylinder 9;

[0041] See also Figures 1 to 5 , the skeleton 3 is arranged in a truncated cone shape;

[0042] It should be noted that the truncated cone-shaped skeleton 3 can optimize the flow and distribution of the mother liquid on the microporous filtration membrane 4 while ensuring sufficient support strength. Since the truncated cone-shaped structure has a gradually increasing diameter, the mother liquid can form a more uniform distribution when flowing through the microporous filtration membrane 4, thereby improving the precipitation efficiency.

[0043] See also Figures 1 to 5 , an ultrasonic sound-generating device 12 is installed outside the reactor 1, and an output end of the ultrasonic sound-generating device 12 is arranged inside the reactor 1;

[0044] It should be noted that the ultrasonic wave is emitted into the reactor 1 by the ultrasonic sound generating device 12, and the vibration of the ultrasonic wave can further promote the separation of the solid low-molecular resin and the mother liquid, thereby improving the precipitation efficiency. At the same time, the action of the ultrasonic wave also helps to prevent the solid low-molecular resin from forming agglomerates or deposits in the reactor 1, thereby keeping the reactor 1 clean and efficient.

[0045] See also Figures 1 to 5 The driving assembly 6 includes a motor 13 and a belt transmission mechanism 14. The motor 13 is installed on one side of the reactor 1, and the output end of the motor 13 is connected to the conveying pipe 2 through the belt transmission mechanism 14;

[0046] It should be noted that the rotation of the conveying pipe 2 can be driven by the motor 13, and the belt transmission mechanism 14 ensures the stability and reliability of the transmission. By adjusting the rotation speed of the motor 13, the rotation speed of the conveying pipe 2 can be conveniently controlled, thereby achieving precise control of the precipitation process.

[0047] The working principle of the low molecular weight resin precipitation device in the reaction mother liquid provided by the utility model is as follows:

[0048] First, the mother liquor is injected into the reaction kettle 1 through the liquid injection pipe 8. The design of the liquid injection pipe 8 makes the addition process of the mother liquor more convenient. At the same time, low-temperature water can also be conveniently added through the liquid injection pipe 8. When it is necessary to add low-temperature water to the mother liquor to precipitate the low-molecular resin dissolved therein, only need to inject the low-temperature water into the reaction kettle 1 through the liquid injection pipe 8. The addition of low-temperature water will reduce the temperature of the mother liquor, thereby promoting the precipitation of the low-molecular resin from the mother liquor;

[0049] As the mother liquor is injected into the reaction kettle 1, the conveying pipe 2 starts to rotate driven by the driving component 6. The spiral conveying strip 5 on the outer side of the conveying pipe 2 stirs the mother liquor as the conveying pipe 2 rotates, making the solid low-molecular resin in the mother liquor better separated from the liquid part. At the same time, the design of the spiral conveying strip 5 also helps to prevent the solid low-molecular resin from depositing in the reaction kettle 1, keeping the reaction kettle 1 clean and efficient;

[0050] While the spiral conveying strip 5 stirs the mother liquor, the microporous filtration membrane 4 starts to play its role. The microporous filtration membrane 4 covers the outer surface of the framework 3, and its pore size is carefully selected to be able to intercept the solid low-molecular resin and allow the liquid part to pass through. As the mother liquor flows and is stirred by the spiral conveying strip 5, the solid low-molecular resin gradually adheres to the microporous filtration membrane 4, forming a relatively thick precipitation layer.

[0051] When the precipitation layer reaches a certain thickness, the spiral conveying strip 5 continues to rotate, conveying the precipitated solid low-molecular resin upward into the interior of the conveying pipe 2. The solid low-molecular resin in the conveying pipe 2 is then discharged from the reaction kettle 1, achieving the purpose of separating the solid low-molecular resin from the mother liquor;

[0052] In addition, the ultrasonic generating device 12 installed outside the reaction kettle 1 can emit ultrasonic waves into the interior of the reaction kettle 1 when needed. The vibration effect of the ultrasonic waves can further promote the separation of the solid low-molecular resin and the mother liquor, improving the precipitation efficiency.

[0053] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A device for precipitating low molecular weight resin in reaction mother liquid, characterized in that: include: A reaction kettle (1), the reaction kettle (1) is used to contain the mother liquor for precipitation reaction; A delivery pipe (2), the delivery pipe (2) being rotatably connected to the center of the reaction kettle (1); A frame (3), the outer side of the delivery pipe (2) is fixedly connected to the frame (3); A microporous filtration membrane (4), the microporous filtration membrane (4) covers the outer surface of the skeleton (3) and is used to precipitate solid low-molecular resin from the reaction mother liquid during the reaction process, and the top of the microporous filtration membrane (4) is connected to the top of the delivery pipe (2); A spiral conveying bar (5), the outer side of the skeleton (3) is fixedly connected with the spiral conveying bar (5), and the spiral conveying bar (5) is used to stir the mother liquid in the reaction kettle (1) during the rotation of the conveying pipe (2); A driving assembly (6) is used to drive the conveying pipe (2) to rotate.

2. The device for precipitating low molecular weight resin in reaction mother solution according to claim 1, characterized in that: A reactor cover (7) is provided on the top of the reactor (1), and liquid injection pipes (8) are equidistantly provided on the top of the reactor cover (7).

3. The device for precipitating low molecular weight resin in reaction mother liquid according to claim 1, characterized in that: A liquid storage cylinder (9) is provided at the bottom of the reaction kettle (1), and a filter screen (10) is provided inside the liquid storage cylinder (9).

4. The device for precipitating low molecular weight resin in reaction mother solution according to claim 3, characterized in that: A frame (11) is provided outside the filter screen (10), and the frame (11) is slidably inserted into the liquid storage cylinder (9).

5. The device for precipitating low molecular weight resin in reaction mother solution according to claim 1, characterized in that: The frame (3) is arranged in a truncated cone shape.

6. The device for precipitating low molecular weight resin in reaction mother solution according to claim 1, characterized in that: An ultrasonic sound-generating device (12) is installed outside the reaction kettle (1), and an output end of the ultrasonic sound-generating device (12) is arranged inside the reaction kettle (1).

7. The device for precipitating low molecular weight resin in reaction mother liquid according to claim 1, characterized in that: The driving assembly (6) comprises a motor (13) and a belt transmission mechanism (14). The motor (13) is installed on one side of the reaction kettle (1), and the output end of the motor (13) is connected to the conveying pipe (2) through the belt transmission mechanism (14).

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