Stirring mechanism for high-viscosity reaction medium and reaction kettle

Abstract

The utility model discloses a stirring mechanism for a high-viscosity reaction medium and a reaction kettle, relates to the technical field of chemical equipment, and can solve the problem that the existing anchor type stirring structure has poor anti-sticking and anti-coking effects on the high-viscosity reaction medium. According to the stirring mechanism for the high-viscosity reaction medium, the stirring mechanism comprises a material stirring frame structure driven by a motor, and the material stirring frame structure comprises a vertically-arranged rotating shaft structure and at least one support structure arranged in the circumferential direction of the rotating shaft structure; the support structure comprises a vertically arranged vertical rod structure and at least one connecting rod structure, one end of the connecting rod structure is fixedly connected with the vertical rod structure, and the other end of the connecting rod structure is fixedly connected with the rotating shaft structure; the reaction kettle further comprises a long-strip-shaped elastic scraping assembly used for scraping materials on the inner side wall of the reaction kettle body, and the elastic scraping assembly is vertically fixed to the side, opposite to the rotating shaft structure, of the vertical rod structure.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a stirring mechanism and a reaction kettle for high-viscosity reaction media. Background Art

[0002] The reactor jacket is an important component of the reactor. It is the most common mechanism that provides heating and heat exchange functions for the reactor. It brings or takes away heat through circulating flow. It is usually a hollow cylindrical structure. The stirring mechanism is another important component of the reactor. It can break up the reaction medium and drive the reaction medium to circulate in the reactor.

[0003] At present, the stirring mechanism in the reactor usually adopts different structural types of stirring mechanisms for reaction media with different high viscosities. For reaction media with medium and low viscosities, a two-blade or three-blade paddle stirring structure, or a propeller stirring structure and a turbine stirring structure can be used. For reaction media with high viscosity, an anchor stirring structure is usually used. The gap between the anchor stirring structure and the side wall of the reactor is small during rotation to prevent the material from coking on the side wall of the reactor. However, the existing anchor stirring structure is not effective in preventing sticking and coking of high-viscosity reaction media and is in urgent need of improvement.

[0004] Based on the above background, the inventors have designed a stirring mechanism and a reactor for high-viscosity reaction media to solve the above problems, and thus proposed this application. Utility Model Content

[0005] The purpose of this application is to provide a stirring mechanism and reactor for high-viscosity reaction media, so as to solve the problem that the current anchor stirring structure has poor anti-sticking and anti-coking effects on high-viscosity reaction media.

[0006] In order to solve the above technical problems, the present invention adopts the following solutions:

[0007] In one aspect, the present application provides a stirring mechanism for a high-viscosity reaction medium, wherein the stirring mechanism includes a stirring frame structure driven by a motor, and the stirring frame structure includes:

[0008] A vertically arranged rotating shaft structure and at least one bracket structure arranged circumferentially of the rotating shaft structure;

[0009] The support structure includes a vertical rod structure and at least one connecting rod structure, one end of the connecting rod structure is fixedly connected to the vertical rod structure, and the other end is fixedly connected to the rotating shaft structure;

[0010] It also includes an elastic scraping component in the shape of a long strip and used to scrape materials on the inner wall of the reactor body. The elastic scraping component is vertically fixed to the side of the vertical rod structure facing away from the rotating shaft structure.

[0011] Optionally, the elastic scraper assembly includes a scraper piece mounting seat welded and fixed on the vertical rod structure, and an elastic scraper piece bonded or clamped and fixed on the scraper piece mounting seat.

[0012] Optionally, the cross-sectional shape of the free end of the elastic scraper piece is an arc shape.

[0013] Optionally, the rotating shaft structure is a hollow rotating shaft, the vertical rod structure is a hollow vertical tube, and the connecting rod structure is a horizontally arranged hollow horizontal tube;

[0014] The hollow vertical tube is connected to the hollow rotating shaft through the hollow horizontal tube, and a plurality of air injection holes are distributed on the side of the hollow vertical tube facing away from the hollow rotating shaft;

[0015] It also includes an air supply component whose air outlet end is connected to the hollow rotating shaft.

[0016] Optionally, the air supply assembly includes a fan that is vertically arranged and coaxially fixedly connected to the hollow rotating shaft;

[0017] Several exhaust holes are provided on the upper part of the fan;

[0018] It also includes a motor for driving the hollow shaft to rotate, and the motor is fixedly connected to the hollow shaft through a coupling.

[0019] Optionally, the aperture of the air jet hole gradually decreases along the air outlet direction;

[0020] The cross-sectional shape of the fumarole is an isosceles trapezoid.

[0021] Optionally, the plurality of air injection holes are evenly distributed along the axis of the hollow vertical tube;

[0022] The air injection hole is arranged adjacent to the elastic scraper component.

[0023] Optionally, the number of the support structures is 2, 3 or 4, and the 2 or more support structures are evenly distributed along the circumference of the rotating shaft structure.

[0024] Another aspect of the present application provides a reactor for high-viscosity reaction media, comprising any one of the above-described stirring mechanisms for high-viscosity reaction media, and further comprising a reactor body, wherein the stirring rack structure is disposed in the reactor body;

[0025] The side of the elastic scraper assembly away from the vertical rod structure is pressed against the side wall of the reactor body.

[0026] Beneficial effects of the utility model:

[0027] The present application sets up a rotating shaft structure and a bracket structure, and the bracket structure includes a vertical rod structure and an elastic scraper assembly set on the vertical rod, so that when the motor drives the rotating shaft structure and the bracket structure to rotate, the elastic scraper assembly can continuously scrape off the reaction medium adhering to the side wall of the reactor body along with the bracket assembly, thereby avoiding the problem of long-term adhesion causing coking.

[0028] Secondly, based on the design of the elastic scraper assembly, the present application has a rotating shaft structure of a hollow rotating shaft, the vertical rod structure of a hollow vertical tube, and the connecting rod structure of a horizontally arranged hollow horizontal tube. The hollow rotating shaft, the hollow vertical tube, and the hollow horizontal tube are interconnected, and a jet hole is provided on the hollow vertical tube. The air outlet end of the air supply assembly is connected to the hollow rotating shaft, so that when the hollow rotating shaft rotates, the jet hole can continuously spray high-pressure gas toward the side wall of the reactor body, rushing towards and removing a considerable portion of the reaction medium adhering to the side wall of the reactor body, and the jet hole is arranged adjacent to the elastic scraper assembly, so that when the hollow rotating shaft rotates, the reaction medium adhering to the side wall of the reactor body is first blown and then scraped to form a removal effect, thereby avoiding the reaction medium from adhering to the side wall of the reactor body for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the main structure of Example 1 of the present application.

[0030] Figure 2 This is a schematic cross-sectional structural diagram of Example 2 of the present application.

[0031] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow vertical tube in Example 2 of the present application.

[0032] Figure 4 This is a schematic cross-sectional structural diagram of Example 3 of the present application.

[0033] Description of reference numerals:

[0034] 1-hollow shaft, 101-ventilation main chamber, 2-stirring frame structure, 21-hollow horizontal tube, 211-ventilation horizontal chamber, 22-hollow vertical tube, 221-jet hole, 222-ventilation vertical chamber, 23-elastic scraper assembly, 231-elastic scraper blade, 232-scraper blade mounting seat, 3-fan, 301-exhaust hole, 4-motor, 5-reactor body, 6-conductive slip ring. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "opened," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] Example 1:

[0040] like Figure 1 As shown, this embodiment provides a stirring mechanism for high-viscosity reaction media, wherein the stirring mechanism includes a stirring frame structure 2 driven by a motor 4, and the stirring frame structure 2 includes:

[0041] A vertically arranged rotating shaft structure and at least one bracket structure arranged circumferentially of the rotating shaft structure;

[0042] The support structure includes a vertical rod structure and at least one connecting rod structure, one end of the connecting rod structure is fixedly connected to the vertical rod structure, and the other end is fixedly connected to the rotating shaft structure;

[0043] It also includes an elastic scraper assembly 23 in a long strip shape for scraping materials on the inner wall of the reactor body 5. The elastic scraper assembly 23 is vertically fixed to the side of the vertical rod structure facing away from the rotating shaft structure.

[0044] In this embodiment, a rotating shaft structure and a bracket structure are provided, and the bracket structure includes a vertical rod structure and an elastic scraper assembly 23 provided on the vertical rod. When the motor 4 drives the rotating shaft structure and the bracket structure to rotate, the elastic scraper assembly 23 can continuously scrape the reaction medium adhering to the side wall of the reactor body 5 along with the bracket assembly, thereby avoiding the problem of carbonization caused by its long-term adhesion.

[0045] Specifically, in this embodiment, the elastic scraper assembly 23 includes a scraper blade mounting seat 232 welded to the vertical rod structure, and an elastic scraper blade 231 bonded or clamped to the scraper blade mounting seat 232. In this embodiment, the elastic scraper blade 231 is fixed to the scraper blade mounting seat 232 by clamping. The elastic scraper blade 231 can be made of rubber or silicone.

[0046] Specifically, in this embodiment, the cross-section of the free end of the elastic scraper piece 231 is in the shape of an arc, so that only one area of ​​the free end of the elastic scraper piece 231 contacts the side wall of the reactor body 5 .

[0047] Example 2:

[0048] Based on Example 1, Figure 2 and Figure 3 As shown, the shaft structure is a hollow shaft 1, the vertical rod structure is a hollow vertical tube 22, and the connecting rod structure is a horizontally arranged hollow horizontal tube 21;

[0049] The hollow vertical tube 22 is connected to the hollow shaft 1 through the hollow horizontal tube 21. A plurality of air injection holes 221 are distributed on the side of the hollow vertical tube 22 facing away from the hollow shaft 1.

[0050] It also includes an air supply component whose air outlet end is connected to the hollow rotating shaft 1.

[0051] In this embodiment, based on the design of the elastic scraper component 23, the rotating shaft structure is a hollow rotating shaft 1, the vertical rod structure is a hollow vertical tube 22, and the connecting rod structure is a horizontally arranged hollow horizontal tube 21. The hollow rotating shaft 1, the hollow vertical tube 22, and the hollow horizontal tube 21 are interconnected, and an air jet hole 221 is provided on the hollow vertical tube 22. The air outlet end of the air supply component is connected to the hollow rotating shaft 1, so that when the hollow rotating shaft 1 rotates, the air jet hole 221 can continuously spray high-pressure gas toward the side wall of the reactor body 5, rushing towards and removing a considerable portion of the reaction medium adhering to the side wall of the reactor body 5.

[0052] Specifically, in this embodiment, Figure 2 and Figure 3 As shown, the air supply assembly includes a fan 3 which is vertically arranged and coaxially fixedly connected to the hollow rotating shaft 1;

[0053] A plurality of air extraction holes 301 are provided at the upper portion of the fan 3;

[0054] It also includes a motor 4 for driving the hollow shaft 1 to rotate. The motor 4 is fixedly connected to the hollow shaft 1 through a coupling. The exhaust hole 301 is located above the fan 3, close to the top of the reactor body 5 to avoid contact with the reaction medium.

[0055] In this embodiment, a conductive slip ring 6 is further included which is sleeved on the rotating shaft. The cable of the fan 3 is connected to the external power supply via the conductive slip ring 6. The conductive slip ring 6 is an existing structure and will not be described in detail here.

[0056] Specifically, in this embodiment, Figure 2 and Figure 3 As shown, the aperture of the air jet hole 221 gradually decreases along the air outlet direction, which can increase the pressure of the gas ejected from the air jet hole 221 and improve the removal effect of the reaction medium.

[0057] Specifically, in this embodiment, the cross-sectional shape of the air injection hole 221 is an isosceles trapezoid.

[0058] Specifically, in this embodiment, Figure 2 As shown, the plurality of air injection holes 221 are evenly distributed along the axis direction of the hollow vertical tube 22;

[0059] The air injection hole 221 is arranged adjacent to the elastic scraper assembly 23, so that when the hollow shaft 1 rotates, the reaction medium adhering to the side wall of the reactor body 5 is removed by first blowing and then scraping, thereby preventing the reaction medium from adhering to the side wall of the reactor body 5 for a long time.

[0060] Specifically, in this embodiment, the number of the support structures is 2, 3 or 4, and the two or more support structures are evenly distributed along the circumference of the rotating shaft structure.

[0061] Example 3:

[0062] like Figure 4 As shown, this embodiment provides a reactor for high-viscosity reaction media, including the above-mentioned stirring mechanism for high-viscosity reaction media, and also includes a reactor body 5, and the stirring rack structure 2 is arranged in the reactor body 5;

[0063] The side of the elastic scraper assembly 23 away from the connecting rod structure is pressed against the side wall of the reactor body 5 .

[0064] The rest of the structure of this embodiment is the same as that of embodiment 2 and will not be described here in detail.

[0065] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will be able to make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A stirring mechanism for a high-viscosity reaction medium, characterized in that: The stirring mechanism comprises a stirring frame structure (2) driven by a motor (4), and the stirring frame structure (2) comprises: A vertically arranged rotating shaft structure and at least one bracket structure arranged circumferentially of the rotating shaft structure; The support structure includes a vertical rod structure and at least one connecting rod structure, one end of the connecting rod structure is fixedly connected to the vertical rod structure, and the other end is fixedly connected to the rotating shaft structure; It also includes an elastic scraping assembly (23) in a long strip shape and used for scraping materials on the inner side wall of the reactor body (5). The elastic scraping assembly (23) is vertically fixed to the side of the vertical rod structure facing away from the rotating shaft structure.

2. A stirring mechanism for a high-viscosity reaction medium according to claim 1, characterized in that: The elastic scraper assembly (23) comprises a scraper piece mounting seat (232) welded and fixed on the vertical rod structure, and an elastic scraper piece (231) bonded or clamped and fixed on the scraper piece mounting seat (232).

3. A stirring mechanism for a high-viscosity reaction medium according to claim 2, characterized in that: The cross-section of the free end of the elastic scraper piece (231) is in the shape of a circular arc.

4. The stirring mechanism for a high-viscosity reaction medium according to claim 1, characterized in that: The rotating shaft structure is a hollow rotating shaft (1), the vertical rod structure is a hollow vertical tube (22), and the connecting rod structure is a horizontally arranged hollow horizontal tube (21); The hollow vertical tube (22) is connected to the hollow rotating shaft (1) through the hollow horizontal tube (21), and a plurality of air injection holes (221) are distributed on the side of the hollow vertical tube (22) facing away from the hollow rotating shaft (1); It also includes an air supply component whose air outlet end is connected to the hollow rotating shaft (1).

5. A stirring mechanism for a high-viscosity reaction medium according to claim 4, characterized in that: The air supply assembly comprises a fan (3) which is vertically arranged and coaxially fixedly connected to the hollow rotating shaft (1); A plurality of air extraction holes (301) are provided at the upper portion of the fan (3); It also includes a motor (4) for driving the hollow rotating shaft (1) to rotate, and the motor (4) is fixedly connected to the hollow rotating shaft (1) via a coupling.

6. A stirring mechanism for a high-viscosity reaction medium according to claim 4, characterized in that: The aperture of the air jet hole (221) gradually decreases along the air outlet direction; The cross-sectional shape of the air injection hole (221) is an isosceles trapezoid.

7. A stirring mechanism for a high-viscosity reaction medium according to claim 4, characterized in that: The plurality of air injection holes (221) are evenly distributed along the axial direction of the hollow vertical tube (22); The air injection hole (221) is arranged adjacent to the elastic scraper assembly (23).

8. The stirring mechanism for a high-viscosity reaction medium according to claim 1, characterized in that: The number of the support structures is 2, 3 or 4, and the 2 or more support structures are evenly distributed along the circumference of the rotating shaft structure.

9. A reactor for high-viscosity reaction media, comprising a stirring mechanism for high-viscosity reaction media according to any one of claims 1 to 8, characterized in that: It also includes a reactor body (5), wherein the stirring rack structure (2) is arranged in the reactor body (5); The side of the elastic scraper assembly (23) away from the vertical rod structure is pressed against the side wall of the reactor body (5).

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