Visual olefin polymerization device

Abstract

The utility model belongs to the field of olefin polymerization, particularly relates to a visual olefin polymerization device, aims to solve the problem that a temperature control function is not provided or the temperature control is inaccurate, and comprises a vacuumizing device, a high-precision low-temperature constant-temperature control device, a visual high-carbon olefin polymerization device and a low-temperature turnover reaction device, the vacuumizing device and the high-precision low-temperature constant-temperature control device are respectively connected with the visual high-carbon olefin polymerization device, and after the visual high-carbon olefin polymerization device mixes samples, the low-temperature turnover reaction device can turn over and cool the mixed samples; according to the polymerization reaction device, oxygen and water in the reaction device can be effectively removed through the vacuumizing device, the catalyst can fully participate in the olefin polymerization process, the low-temperature overturning reaction device is mainly used for stirring the polymerization reaction bag at a constant rotating speed after the catalyst is added, the catalyst is effectively prevented from being gathered, and the polymerization effect is improved. Therefore, the purpose of uniformly increasing polymer molecules is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of olefin polymerization, and specifically relates to a visual olefin polymerization device. Background Technology

[0002] The catalyst used in the olefin polymerization reaction is Ziegler-Natta catalyst, which is characterized by direct mixing with the monomers. If the mixture is not uniform or the temperature cannot be precisely controlled during the reaction, the product will explode, resulting in some products having too small a molecular weight, which does not meet the requirements of drag reducers.

[0003] Currently, common polymerization reactors on the market either lack temperature control or are not precise in temperature control. Because olefin polymerization releases a lot of heat, overheating can lead to short polymer chains and small molecular weights, failing to meet the requirements for drag-reducing agents. Utility Model Content

[0004] To address the problem that existing technologies lack temperature control functionality or are not precise in temperature control, this utility model provides a visual olefin polymerization device, including a vacuum device, a high-precision low-temperature constant temperature control device, a visual high-carbon olefin polymerization device, and a low-temperature reversible reaction device.

[0005] The vacuum device and the high-precision low-temperature constant temperature control device are respectively connected to the visualized high-carbon olefin polymerization device. After the visualized high-carbon olefin polymerization device has mixed the sample, the low-temperature reversible reaction device can cool the mixed sample.

[0006] According to some embodiments of this application, a visual olefin polymerization apparatus is provided, wherein the visual high-carbon olefin polymerization apparatus is equipped with a pressure detection system, a temperature detection system, and a magnetic stirring system.

[0007] According to some embodiments of this application, a visual olefin polymerization apparatus is provided, wherein the pressure detection system includes a pressure sensor, the pressure sensor being connected to a PLC and outputting to a touch screen.

[0008] According to some embodiments of this application, a visual olefin polymerization apparatus is provided, wherein the temperature detection system includes a temperature sensor, the temperature sensor being connected to a PLC and outputting to a touch screen display.

[0009] According to some embodiments of this application, a visualization olefin polymerization apparatus is provided, wherein a storage tank is provided inside the low-temperature reversible reaction apparatus, and the sample can be placed inside the storage tank.

[0010] According to some embodiments of this application, a visualized olefin polymerization apparatus is provided, wherein the low-temperature reversible reaction apparatus is provided with an insulation layer, the insulation layer being able to at least cover the storage tank.

[0011] According to some embodiments of this application, a visualization olefin polymerization apparatus is provided, wherein the high-precision low-temperature constant temperature control device includes a refrigeration system and a control system, and the refrigeration system is connected to the control system.

[0012] According to some embodiments of this application, a visualization olefin polymerization apparatus is provided, wherein the high-precision low-temperature constant temperature control device is also equipped with an alarm system.

[0013] The beneficial effects of this utility model are:

[0014] The high-precision low-temperature constant temperature control device can stably control the reaction temperature with an effective temperature control accuracy of ±0.5℃. The polymerization reactor of this application can effectively remove oxygen and water from the reactor through a vacuum device, allowing the catalyst to fully participate in the olefin polymerization process instead of being consumed by oxygen or water. It can evacuate the gas pressure in the polymerization reactor to -0.1MPa within 5 minutes. The main function of the low-temperature flipping reactor is to stir the polymerization reaction bag at a constant speed after the catalyst is added. The speed can be adjusted from 0-500 r / min, effectively preventing catalyst aggregation and thus achieving the purpose of uniform growth of polymer molecules. Attached Figure Description

[0015] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of some embodiments of this application.

[0017] In the diagram: 1. Vacuum pumping device; 2. High-precision low-temperature constant temperature control device; 3. Visual high-carbon olefin polymerization device; 4. Low-temperature reversible reaction device. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] like Figure 1As shown, this utility model provides a visual olefin polymerization device, including a vacuum device 1, a high-precision low-temperature constant temperature control device 2, a visual high-carbon olefin polymerization device 3, and a low-temperature reversible reaction device 4.

[0021] Vacuum device 1 and high-precision low-temperature constant temperature control device 2 are respectively connected to visualization high-carbon olefin polymerization device 3. After the visualization high-carbon olefin polymerization device 3 mixes the sample, the low-temperature reversible reaction device 4 can flip and cool the mixed sample.

[0022] In practical implementation, the visualized high-carbon olefin polymerization device 3 is used for polymer reaction. It cannot come into contact with air before the reaction. The reaction process generates a large amount of heat. The vacuum device 1 is connected to the visualized high-carbon olefin polymerization device 3 through an air pipe and can remove the air inside the visualized high-carbon olefin polymerization device 3. The high-precision low-temperature constant temperature control device 2 can cool the visualized high-carbon olefin polymerization device 3. The low-temperature flip-over reaction device 4 is used to bag the mixed sample of the visualized high-carbon olefin polymerization device 3 and can flip and cool the sample. The connection is made by manual sample receiving, sampling, and loading. The vacuum device 1 includes components such as a pump body, gas-liquid separator, and vacuum gauge. These components are fixed to the mobile trolley with screws and connected through an air pipe to extract the gas inside the visualized high-carbon olefin polymerization device 3.

[0023] In some embodiments, the visualization high-carbon olefin polymerization apparatus 3 is equipped with a pressure detection system, a temperature detection system, and a magnetic stirring system.

[0024] In practice, the pressure monitoring system, temperature detection system, and magnetic stirring system are used for the pre-reaction synthesis, adjustment, and control of the high-carbon olefin polymerization process. The magnetic stirring system works by utilizing the principle of like poles repelling and unlike poles attracting in magnetic fields.

[0025] In some embodiments, the pressure detection system includes a pressure sensor connected to a PLC and outputting to a touch screen; the temperature detection system includes a temperature sensor connected to a PLC and outputting to a touch screen.

[0026] In practice, the pressure monitoring system and temperature detection system consist of pressure sensors and temperature sensors connected to a PLC and outputting to a touch screen display.

[0027] In some embodiments, the low-temperature reversible reaction device 4 is equipped with components such as a storage tank, an insulation layer, an electrical control cabinet, a compressor, an evaporator, a condenser, a motor, and a reducer. The sample can be placed inside the storage tank. The low-temperature reversible reaction device 4 is equipped with an insulation layer that can at least cover the storage tank. The connection method and working principle of the storage tank, insulation layer, electrical control cabinet, compressor, evaporator, and condenser are mature existing technologies, and the connection relationship of each component is the same as that of existing refrigerators.

[0028] In some embodiments, the high-precision low-temperature constant temperature control device 2 includes a refrigeration system and a control system, the refrigeration system being connected to the control system, and an alarm system being provided within the high-precision low-temperature constant temperature control device 2.

[0029] In practice, the refrigeration system typically uses an air-cooled, fully enclosed compressor unit, which features rapid cooling and is equipped with multiple protection devices such as overheat and overcurrent protection. The control system uses a microcomputer intelligent control system, which can quickly set the temperature, is easy to operate, and has an over-temperature alarm system. It is mainly used for precise temperature control of the visualized high-carbon olefin polymerization unit.

[0030] The specific implementation steps are as follows:

[0031] S1. Start the high-precision low-temperature constant temperature control device 2 and adjust the temperature inside the visual high-carbon olefin polymerization device 3 to make it reach the appropriate temperature for the polymerization reaction.

[0032] S2. Start the vacuum pumping device 1 to extract the air in the visualized high-carbon olefin polymerization device 3, and after reaching a vacuum, introduce nitrogen into it. Repeat this process three times until the visualized high-carbon olefin polymerization device 3 contains only nitrogen, thus preventing oxygen, water, etc. in the air from reacting with the catalyst.

[0033] S3. Add an appropriate amount of monomer and catalyst into the visualization high-carbon olefin polymerization device 3 and stir evenly.

[0034] S4. Open the liquid outlet under the visualization high carbon olefin polymerization device 3 and fill it with a reaction bag;

[0035] S5. Place the reaction bag into the low-temperature reversible reaction device 4, adjust the reaction temperature, and observe the reaction process at any time.

[0036] As some optional embodiments, the vacuum pumping device 1 can be a Fujiwara 280Pro vacuum machine, the high-precision low-temperature constant temperature control device 2 can be a Jiezhimai 30AT air-cooled refrigerator, the visual high-carbon olefin polymerization device 3 can be a Lumich MT-SVS-3L reactor, and the low-temperature reversible reaction device 4 can be a Yinggong YG-DC-3060.

[0037] Because the Ziegler-Natta catalyst used in olefin polymerization is highly reactive, it readily reacts with oxygen and water vapor in the air, ultimately leading to catalyst deactivation and reaction failure. The polymerization apparatus of this application effectively removes oxygen and water from the visualized high-carbon olefin polymerization apparatus 3 using a vacuum pump 1, allowing the catalyst to fully participate in the olefin polymerization process instead of being consumed by oxygen or water. This vacuum pump can reduce the pressure inside the polymerization apparatus to -0.1 MPa within 5 minutes. The low-temperature inversion reaction apparatus 4 primarily functions to stir the polymerization reaction bag at a constant speed after the catalyst is added. The speed can be adjusted from 0-500 r / min, effectively preventing catalyst aggregation and achieving uniform polymer molecule growth.

[0038] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0041] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A visualization apparatus for olefin polymerization, characterized in that, It includes a vacuum pumping device (1), a high-precision low-temperature constant temperature control device (2), a visual high-carbon olefin polymerization device (3), and a low-temperature reversible reaction device (4); The vacuum device (1) and the high-precision low-temperature constant temperature control device (2) are respectively connected to the visualization high-carbon olefin polymerization device (3). After the visualization high-carbon olefin polymerization device (3) has mixed the sample, the low-temperature reversible reaction device (4) can cool the mixed sample.

2. The visualized olefin polymerization apparatus according to claim 1, characterized in that, The visualized high-carbon olefin polymerization device (3) is equipped with a pressure detection system, a temperature detection system and a magnetic stirring system.

3. The visualized olefin polymerization apparatus according to claim 2, characterized in that, The pressure detection system includes a pressure sensor, which is connected to a PLC and outputs its signal to a touch screen.

4. The visualized olefin polymerization apparatus according to claim 3, characterized in that, The temperature detection system includes a temperature sensor, which is connected to a PLC and outputs its data to a touch screen.

5. The visualized olefin polymerization apparatus according to claim 1, characterized in that, The low-temperature reversible reaction device (4) is equipped with a storage tank, and the sample can be placed in the storage tank.

6. The visualized olefin polymerization apparatus according to claim 5, characterized in that, The low-temperature reversible reaction device (4) is provided with an insulation layer, which is at least able to cover the storage tank.

7. The visualized olefin polymerization apparatus according to claim 1, characterized in that, The high-precision low-temperature constant temperature control device (2) includes a refrigeration system and a control system, wherein the refrigeration system is connected to the control system.

8. The visualized olefin polymerization apparatus according to claim 7, characterized in that, The high-precision low-temperature constant temperature control device (2) is also equipped with an alarm system.

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