A reaction kettle for producing ultrahigh viscosity metallocene poly-alpha olefin is convenient to clean

Abstract

This application relates to the field of reactor technology, and in particular to a reactor for the production of ultra-high viscosity metallocene polyalphaolefins that is easy to clean. It includes a base, a temperature-controlled electric heating wire, a rotating wall scraping assembly, a liquid distribution pipeline, a Y-type upward-expanding discharge valve, a spiral discharge mechanism, and a spray device. Flexible scrapers and a self-cleaning layer reduce material adhesion, while the rotating spray head provides all-around automatic cleaning of the reactor interior. The combination of the Y-type upward-expanding discharge valve and the spiral discharge mechanism effectively prevents material retention. The heating wire structure of the temperature-controlled electric heating wire ensures temperature control, the liquid distribution pipeline ensures orderly delivery of materials and cleaning fluid, and the modular design enhances assembly convenience. This application significantly reduces the frequency of manual cleaning, improves the automation level and cleaning effect of the equipment, and protects the inner wall of the reactor from damage, making it suitable for high-viscosity material production scenarios.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, specifically to a reactor for the production of ultra-high viscosity metallocene polyalphaolefins that is easy to clean. Background Technology

[0002] In the chemical production field, with the continuous development of polymer materials technology, ultra-high viscosity metallocene polyalphaolefins, as important high-performance materials, are increasingly in demand in industrial applications. As the core equipment for the production of these materials, the internal structure design and cleaning efficiency of the reactor directly affect product quality and production cycle. Therefore, optimizing the design of the reactor is particularly important to ensure uniform mixing and efficient conversion of materials during the reaction process.

[0003] Traditional reactors for ultra-high viscosity materials often employ a single stirring structure combined with a fixed inner wall design to achieve the mixing function. For example, common design schemes include using multi-layer paddle agitators to enhance shear force, while a heating jacket provides a constant temperature environment to promote complete material reaction. Other common methods include setting an inclined angle at the bottom of the reactor to reduce residue, or adding a spray system to clean the inner wall.

[0004] However, these traditional methods generally face a problem: due to structural design limitations, high-viscosity materials tend to adhere to the inner wall and dead corners of the reactor, making them difficult to remove completely. Especially in continuous production processes, this significantly increases the frequency and intensity of manual cleaning, thus affecting overall production efficiency and potentially leading to the risk of cross-contamination. Therefore, based on these issues, existing technologies require further improvement and optimization. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reaction vessel for the production of ultra-high viscosity metallocene polyalphaolefins that is easy to clean.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a reactor for the production of ultra-high viscosity metallocene polyalphaolefins that is easy to clean, comprising: a base for supporting the equipment; a temperature-controlled electric heating wire disposed on the base for temperature control and heating of the reactor; a rotating wall scraper assembly disposed inside the reactor for stirring and cleaning the material; a liquid distribution pipeline disposed at the upper part of the reactor for inputting the material into the inlet and conveying the liquid to the spraying device; a Y-type upward-expanding discharge valve disposed at the bottom of the reactor for controlling and sealing the discharge of the material; a spiral discharge mechanism disposed at the bottom of the Y-type upward-expanding discharge valve for discharging the cleaned material; and a spraying device disposed inside the reactor and above the rotating wall scraper assembly for cleaning the material.

[0007] As a further description of the above technical solution:

[0008] The temperature-controlled electric heating wire is spirally welded onto the reactor and used to heat the materials.

[0009] As a further description of the above technical solution:

[0010] The rotating scraper assembly includes: a rotating drive motor, mounted above the reactor, with its output end connected to a drive shaft via a coupling; a drive shaft, mounted on the rotating scraper assembly and connected to the output end of the rotating drive motor, for transmitting the rotational drive; a rotating support, mounted on the drive shaft, for supporting the flexible scraper and the stirring system; a flexible scraper, mounted on the side of the rotating support, for cleaning the self-cleaning layer; a stirring system, mounted on the rotating support, for stirring the materials; and a self-cleaning layer, located inside the reactor, for cooperating with the flexible scraper and preventing material adhesion.

[0011] As a further description of the above technical solution:

[0012] The liquid distribution pipeline includes: a material inlet pipe, installed on the reactor, for inputting materials; a material inlet one-way check valve, installed in the material inlet pipe for sealing and reflux of the reactor; and a liquid delivery pipe, installed on the spray device, for delivering liquid to the spray device.

[0013] As a further description of the above technical solution:

[0014] The Y-type upward-expanding discharge valve includes: a lifting cylinder, mounted on the base and located at the bottom of the reactor, used for driving the discharge telescopic rod; a discharge pipe, mounted on the Y-type upward-expanding discharge valve, with the discharge end connected to the spiral discharge mechanism for conveying materials; and a discharge telescopic rod, mounted on the lifting cylinder, which extends and retracts linearly for discharging and sealing materials.

[0015] As a further description of the above technical solution:

[0016] The spiral discharge mechanism includes: a spiral discharge motor, mounted on the base and located at the bottom of the Y-shaped upward-expanding discharge valve, for rotating and driving the auger mechanism; an auger mechanism, mounted on the spiral discharge mechanism and connected to the output end of the spiral discharge motor, for guiding and conveying the discharged material; and a discharge pipe, located below the spiral discharge mechanism, for discharging the cleaned material.

[0017] As a further description of the above technical solution:

[0018] The spraying device includes: a nozzle, disposed on the spraying device, for spraying materials; a rotary bearing, disposed inside the spraying device, for driving the rotation of the nozzle; and a connecting shaft, disposed inside the spraying device, for supporting the rotary bearing and the connecting shaft.

[0019] This utility model has the following beneficial effects:

[0020] 1. This reactor achieves its core technological effects through the collaborative design of multiple components. The flexible scraper of the rotating wall scraping assembly works in conjunction with the self-cleaning layer to continuously scrape away the adhering substances on the inner wall while stirring the materials; the rotating nozzle of the spray device can clean in all directions. The combination of the two greatly reduces the frequency of manual cleaning and improves cleaning efficiency.

[0021] 2. The Y-type upward discharge valve and spiral discharge mechanism solve the problem of discharging high-viscosity materials. Temperature control is achieved by temperature-controlled electric heating wire, and liquid distribution pipelines ensure the delivery of materials and cleaning fluid. All components work together to ensure efficient reaction, reduce maintenance costs, and improve production safety and continuity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the equipment in operation according to this utility model;

[0024] Figure 3 This is a diagram of the Y-type upward-expanding discharge valve and the spiral discharge mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the spraying device of this utility model.

[0026] Legend:

[0027] 1. Base; 2. Temperature-controlled electric heating wire; 3. Rotary scraper assembly; 301. Rotary drive motor; 302. Drive shaft; 303. Rotary support; 304. Flexible scraper; 305. Stirring system; 306. Self-cleaning layer; 4. Liquid distribution pipeline; 401. Material inlet pipeline; 402. Material inlet one-way check valve; 403. Liquid conveying pipeline; 5. Y-type upward-expanding discharge valve; 501. Lifting cylinder; 502. Discharge pipeline; 503. Discharge telescopic rod; 6. Spiral discharge mechanism; 601. Spiral discharge motor; 602. Screw mechanism; 603. Discharge pipeline; 7. Spraying device; 701. Nozzle; 702. Rotary bearing; 703. Connecting shaft. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of 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. The utility model will be further described in detail below with reference to the accompanying drawings.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown in this embodiment, a reactor for the production of ultra-high viscosity metallocene polyalphaolefins that is easy to clean includes: a base 1 for supporting the equipment; a temperature-controlled electric heating wire 2, mounted on the base 1, for temperature control and heating of the reactor; a rotating scraper assembly 3, located inside the reactor, for stirring and cleaning the material; a liquid distribution pipeline 4, located at the top of the reactor, for inputting the material into the inlet and conveying the liquid to the spray device 7; a Y-type upward-expanding discharge valve 5, located at the bottom of the reactor, for controlling and sealing the discharge of the material; a spiral discharge mechanism 6, located at the bottom of the Y-type upward-expanding discharge valve 5, for discharging the cleaned material; and a spray device 7, located inside the reactor and above the rotating scraper assembly 3, for cleaning the material.

[0033] In this embodiment, the base, temperature-controlled electric heating wire, rotating wall scraping assembly, liquid distribution pipeline, Y-type upward discharge valve, spiral discharge mechanism, and spraying device constitute a reaction vessel for the production of ultra-high viscosity metallocene polyalphaolefins that is easy to clean, as described in this application.

[0034] It should also be noted that this equipment can be used for any ultra-high viscosity metallocene polyalphaolefin that requires cleaning, and this application does not limit the specific types of high viscosity materials.

[0035] In addition, in this embodiment, the components work together: the base 1 provides support, the temperature-controlled electric heating wire 2 controls the temperature, the rotating scraper assembly 3 stirs the material, the liquid distribution pipeline 4 conveys the material, the Y-type upward-expanding discharge valve 5 controls the discharge, the spiral discharge mechanism 6 discharges the material, and the spray device 7 cleans the material, thus realizing the functions of material reaction, conveying, discharge and equipment cleaning.

[0036] Specifically, the temperature-controlled electric heating wire 2 is spirally welded onto the reactor for heating the materials.

[0037] In this embodiment, the temperature-controlled electric heating wire 2 generates heat after being energized, and heats the material in the reactor through heat conduction, providing the material with the heat required for the reaction.

[0038] Specifically, the rotating scraper assembly 3 includes: a rotating drive motor 301, mounted above the reactor, with its output end connected to a drive shaft 302 via a coupling; a drive shaft 302, mounted on the rotating scraper assembly 3 and connected to the output end of the rotating drive motor 301, for driving the rotation; a rotating support 303, mounted on the drive shaft 302, for supporting the flexible scraper 304 and the stirring system 305; the flexible scraper 304, mounted on the side of the rotating support 303, for cleaning the self-cleaning layer 306; the stirring system 305, mounted on the rotating support 303, for stirring the materials; and the self-cleaning layer 306, located inside the reactor, for cooperating with the flexible scraper 304 and preventing material adhesion.

[0039] In a preferred embodiment, the rotary drive motor 301 drives the transmission shaft 302 to rotate, thereby causing the rotary support 303, the flexible scraper 304, and the stirring system 305 to rotate. The flexible scraper 304 scrapes off the material on the self-cleaning layer 306, and the stirring system 305 stirs the material. The flexible scraper 304 and the rotary support 303 are connected by a snap-fit ​​support. The flexible scraper 304 scrapes off the material close to the inner wall, thereby achieving material stirring and material removal from the inner wall.

[0040] Example 2:

[0041] Based on Example 1, a liquid distribution pipeline 4 and a Y-type upward discharge valve are installed.

[0042] Specifically, the liquid distribution pipeline 4 includes: a material inlet pipeline 401, which is installed on the reactor and used for inputting materials; a material inlet one-way check valve 402, which is installed in the material inlet pipeline 401 and used for sealing and backflow of the reactor; and a liquid delivery pipeline 403, which is installed on the spray device 7 and used for delivering liquid to the spray device 7.

[0043] In this embodiment, the material enters the reactor through the material inlet pipe 401 and the material inlet one-way check valve 402, and the liquid is transported to the spray device 7 through the liquid delivery pipe 403. The one-way check valve 402 prevents backflow, and the liquid delivery pipe 403 supplies water to the spray device to realize the material input and liquid delivery.

[0044] Specifically, the Y-type upward-expanding discharge valve 5 includes: a lifting cylinder 501, which is mounted on the base 1 and located at the bottom of the reactor, for driving the discharge telescopic rod 503; a discharge pipe 502, which is mounted on the Y-type upward-expanding discharge valve 5, with the discharge end connected to the spiral discharge mechanism 6 for conveying materials; and a discharge telescopic rod 503, which is mounted on the lifting cylinder 501 and extends linearly for discharging and sealing materials.

[0045] With this configuration, the lifting cylinder 501 drives the material discharge telescopic rod 503 to extend and retract linearly up and down, controlling the opening or closing of the material discharge port of the material discharge pipe 502, thereby realizing material discharge and sealing.

[0046] Example 3:

[0047] Based on Example 1, a spiral discharge mechanism and a spraying device are provided.

[0048] Specifically, the spiral discharge mechanism 6 includes: a spiral discharge motor 601, which is mounted on the base 1 and located at the bottom of the Y-shaped upward-expanding discharge valve 5, for rotating and driving the auger mechanism 602; the auger mechanism 602, which is mounted on the spiral discharge mechanism 6 and connected to the output end of the spiral discharge motor 601, for guiding and conveying the discharged material; and a discharge pipe 603, which is located at the bottom of the spiral discharge mechanism 6, for discharging the cleaned material.

[0049] Among them, the spiral discharge motor 601 drives the auger mechanism 602 to rotate, and discharges the material through the discharge pipe 603. The motor drives the auger to rotate, pushing the material out along the pipe, so as to achieve continuous and stable discharge of high-viscosity materials after cleaning.

[0050] Specifically, the spraying device 7 includes: a nozzle 701, which is disposed on the spraying device 7 and used to spray materials; a rotary bearing 702, which is disposed inside the spraying device 7 and used to drive the rotation of the nozzle 701; and a connecting shaft 703, which is disposed inside the spraying device 7 and used to support the rotary bearing 702 and the connecting shaft 703.

[0051] In this embodiment, the liquid is sprayed out through the nozzle 701, and the rotary bearing 702 drives the nozzle 701 to rotate, spraying and cleaning the material, covering the inner wall of the reactor, and thus cleaning the material.

[0052] In actual use, firstly, during the material addition and mixing stage, the reaction raw materials are introduced into the reactor through the material inlet pipe 401 and the material inlet one-way check valve 402. The temperature of the material is controlled by the uniform heating of the temperature-controlled electric heating wire 2. The self-cleaning layer 306 allows a small amount of the reaction raw materials to adhere to the inner wall. After the reaction is completed, the rotating wall scraping assembly 3 is started. The rotating drive motor 301 rotates the drive shaft 302, the rotating support 303, the flexible scraper 304, and the stirring system 305 to perform rotating wall scraping cleaning of the reaction raw materials. The flexible scraper 304 moves along the inner wall to clean it. The rotating support 303 guides the material by rotating. Then, the Y-type upper... The extended discharge valve 5 causes the lifting cylinder 501 to drive the discharge telescopic rod 503 to lower and discharge material from the sealed port. The material will flow from the discharge pipe 502 into the spiral discharge mechanism 6. The spiral discharge motor 601 is turned on to rotate and drive the auger mechanism 602, guiding the material to be discharged from the discharge pipe 603. For any residues in the reactor, cleaning fluid and compressed air are used to clean the inner wall from the spray device 7 through the liquid delivery pipe 403. The compressed air will make the cleaning fluid discharged more thoroughly through the nozzle 701. The nozzle 701 thoroughly cleans the inside of the reactor through the rotating bearing 702 and the connecting shaft 703, and then discharges through the Y-shaped extended discharge valve 5 and the spiral discharge mechanism 6.

[0053] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device that can be controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0054] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reaction vessel for producing ultra-high viscosity metallocene polyalphaolefins that is easy to clean, characterized in that: include: Base (1), used to support the equipment; Temperature-controlled electric heating wire (2) is set on the base (1) and is used for temperature control and heating of the reactor. The rotating scraper assembly (3) is installed inside the reactor and is used for stirring and cleaning the materials; The liquid distribution pipeline (4) is located at the top of the reactor and is used for the input of material into the inlet and the delivery of liquid to the spray device (7); Y-type top-mounted discharge valve (5) is installed at the bottom of the reactor and is used for controlling and sealing the discharge of materials; The spiral discharge mechanism (6) is located at the bottom of the Y-type upward discharge valve (5) and is used to discharge the cleaned material. The spray device (7) is located inside the reactor and above the rotating scraper assembly (3) for cleaning the materials.

2. The reactor for producing ultra-high viscosity metallocene polyalphaolefins that is easy to clean, as described in claim 1, is characterized in that: The temperature-controlled electric heating wire (2) is spirally welded onto the reactor.

3. The reactor for producing ultra-high viscosity metallocene polyalphaolefins that is easy to clean, as described in claim 1, is characterized in that: The rotating scraper assembly (3) includes: A rotary drive motor (301) is installed above the reactor, and its output end is connected to the drive shaft (302) via a coupling; A drive shaft (302) is mounted on the rotating scraper assembly (3) and connected to the output end of the rotating drive motor (301) for transmitting the rotation drive.

4. The reactor for producing ultra-high viscosity metallocene polyalphaolefins, which is easy to clean, as described in claim 3, is characterized in that: The rotating scraper assembly (3) also includes: A rotating support (303) is mounted on the drive shaft (302) and is used to support the flexible scraper (304) and the stirring system (305); A flexible scraper (304) is disposed on the side of the rotating bracket (303) for cleaning the self-cleaning layer (306).

5. The reactor for producing ultra-high viscosity metallocene polyalphaolefins that is easy to clean, as described in claim 1, is characterized in that: The liquid distribution pipeline (4) includes: The material inlet pipe (401) is installed on the reactor and is used for the input of materials; The material inlet check valve (402) is installed in the material inlet pipe (401) for sealing the reactor and preventing backflow.

6. The reactor for producing ultra-high viscosity metallocene polyalphaolefins, which is easy to clean, as described in claim 1, is characterized in that: The Y-type upward-expanding discharge valve (5) includes: The lifting cylinder (501) is set on the base (1) and located at the bottom of the temperature-controlled electric heating wire (2) for driving the material feeding telescopic rod (503); The material discharge telescopic rod (503) is mounted on the lifting cylinder (501) and is used for material discharge and sealing by linear extension and retraction.

7. The reactor for producing ultra-high viscosity metallocene polyalphaolefins that is easy to clean, as described in claim 1, is characterized in that: The spraying device (7) includes: The nozzle (701) is installed on the spraying device (7) and is used to spray the material; A rotary bearing (702) is installed inside the spray device (7) for driving the rotation of the nozzle (701); The connecting shaft (703) is located inside the spray device (7) and is used to support the rotary bearing (702) and the connecting shaft (703).

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