Emulsion reaction kettle for producing waterborne polyurethane emulsion

Abstract

The utility model discloses an emulsification reaction kettle for producing waterborne polyurethane emulsion. The emulsification reaction kettle comprises a base, the top of the base is fixedly connected with a reaction kettle body, the outer wall of the reaction kettle body is fixedly connected with a feeding port, a stirring assembly is arranged in the reaction kettle body, and a scraping assembly is arranged on one side of the stirring assembly; the stirring assembly comprises a motor, and an output shaft of the motor is fixedly connected with a rotating rod through a coupler. The emulsification reaction kettle for producing the waterborne polyurethane emulsion is provided with a starting motor, the motor drives a rotating rod to rotate, the rotating rod drives a connecting plate to rotate, the connecting plate drives a stirring plate to rotate to stir materials, in addition, when the rotating rod rotates, a first gear can be driven to rotate, and the first gear drives a third gear to rotate through a second gear; the third gear drives the fixed ring to rotate by virtue of the rotary drum, and the fixed ring drives the stirring frame to rotate reversely, so that the material stirring effect can be improved through two groups of stirring in opposite directions.

Description

Technical Field

[0001] The utility model relates to the technical field of waterborne polyurethane emulsion production, in particular to an emulsification reaction kettle used for the production of waterborne polyurethane emulsion. Background Art

[0002] The production of waterborne polyurethane composite emulsions involves a process involving chemical reactions and process control. The emulsification reactor used in waterborne polyurethane emulsion production is a crucial piece of equipment in chemical production. It is primarily used to mix, disperse, emulsify, and chemically react raw materials to produce a waterborne polyurethane emulsion that meets the requirements. The operating principle of the emulsification reactor is primarily based on the mixing, dispersion, and emulsification of materials. The emulsification reactor used in waterborne polyurethane emulsion production is an indispensable piece of equipment in chemical production. By properly selecting and using an emulsification reactor, stable production and high-quality output of waterborne polyurethane emulsions can be ensured.

[0003] However, the emulsification reactor used for the production of water-based polyurethane emulsions in the prior art is generally only equipped with a single-direction agitator, which often fails to fully mix and disperse the materials in the reactor. Due to the single stirring direction, the flow of materials in the reactor is restricted, and stirring dead corners and material accumulation are prone to occur, which not only affects the uniformity of the materials, but may also lead to incomplete reaction, thereby affecting the quality and performance of the product. Therefore, we need an emulsification reactor for the production of water-based polyurethane emulsions. Utility Model Content

[0004] The purpose of the utility model is to provide an emulsification reactor for producing waterborne polyurethane emulsion, so as to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an emulsification reactor for the production of water-based polyurethane emulsion, comprising a base, the top of the base is fixedly connected to the reactor, the outer wall of the reactor is fixedly connected to the feed inlet, a stirring assembly is provided inside the reactor, and a scraping assembly is provided on one side of the stirring assembly; the stirring assembly comprises a motor, the output shaft of the motor is fixedly connected to a rotating rod through a coupling, the outer wall of the rotating rod is fixedly connected to a connecting plate, the outer wall of the connecting plate is fixedly connected to a stirring plate, the bottom of the connecting plate is fixedly connected to a spiral feeding sheet, the outer wall of the rotating rod is fixedly connected to a first gear, the outer wall of the first gear is meshedly connected to a second gear, the outer wall of the second gear is meshedly connected to a third gear, the outer wall of the third gear is fixedly connected to a rotating drum, the outer wall of the rotating drum is fixedly connected to a fixing ring, and the outer wall of the fixing ring is fixedly connected to a stirring frame.

[0006] Preferably, the motor forms a rotating structure through the connecting plate and the stirring plate, and there are multiple stirring plates on the connecting plate, and the multiple stirring plates are evenly spaced on the outer wall of the connecting plate.

[0007] Preferably, the first gear forms a rotating structure through the second gear and the third gear, and the second gear is arranged between the first gear and the third gear.

[0008] Preferably, the rotating drum and the stirring frame form a fixed structure through a fixing ring, and the fixing ring is arranged between the rotating drum and the stirring frame.

[0009] Preferably, the scraper assembly includes an electric push rod, a limiting groove is opened inside the stirring frame, a spring is fixedly connected to the inside of the limiting groove, one end of the spring is fixedly connected to the scraper, the stirring frame forms an elastic structure through the spring and the scraper, and there are two springs, and the two springs are symmetrically arranged with the horizontal center line of the scraper as the symmetry axis.

[0010] Preferably, the fixed ring forms a telescopic structure with the stirring frame through an electric push rod, and the electric push rod is arranged between the fixed ring and the stirring frame.

[0011] Preferably, the stirring frame forms a sliding structure with the scraper through the limiting groove, the inner diameter of the limiting groove matches the outer diameter of the scraper, and the inner wall of the limiting groove is fitted with the outer wall of the scraper.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the emulsification reactor for producing waterborne polyurethane emulsion,

[0013] (1) A starting motor is provided, so that the motor drives the rotating rod to rotate, so that the rotating rod drives the connecting plate to rotate, so that the connecting plate drives the stirring plate to rotate to stir the material. In addition, when the rotating rod rotates, it can drive the first gear to rotate, so that the first gear drives the third gear to rotate by relying on the second gear, so that the third gear drives the fixed ring to rotate by relying on the rotating drum, so that the fixed ring drives the stirring frame to rotate in the opposite direction, and then through two groups of stirring, stirring in opposite directions, the stirring effect of the material can be improved;

[0014] (2) When the motor is reversed, the spiral feed plate transports the material to the discharge port of the reactor and discharges the material, and at the same time, the electric push rods on both sides are started, so that the electric push rods drive the stirring frame to move, so that the scraper in the stirring frame contacts the inside of the reactor, and with the support of the spring inside the scraper, the pressure of the scraper on the inner wall of the reactor can be adjusted at any time. At this time, when the motor is reversed, the scraper is driven to scrape the material from the inner wall of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the stirring plate and the spiral conveying plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the stirring assembly of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the scraper assembly of the utility model.

[0019] In the figure: 1. Base; 2. Reactor; 3. Feed port; 4. Stirring assembly; 401. Motor; 402. Rotating rod; 403. Connecting plate; 404. Stirring plate; 405. Spiral feed plate; 406. First gear; 407. Second gear; 408. Third gear; 409. Rotating drum; 410. Fixed ring; 411. Stirring frame; 5. Scraper assembly; 501. Electric push rod; 502. Limiting groove; 503. Spring; 504. Scraper. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The present invention provides an emulsification reactor for producing waterborne polyurethane emulsion. Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, it includes a base 1, the top of the base 1 is fixedly connected to a reactor 2, the outer wall of the reactor 2 is fixedly connected to a feed port 3, a stirring assembly 4 is provided inside the reactor 2, and a scraping assembly 5 is provided on one side of the stirring assembly 4; the stirring assembly 4 includes a motor 401, the output shaft of the motor 401 is fixedly connected to a rotating rod 402 through a coupling, the outer wall of the rotating rod 402 is fixedly connected to a connecting plate 403, the outer wall of the connecting plate 403 is fixedly connected to a stirring plate 404, the motor 401 forms a rotating structure with the stirring plate 404 through the connecting plate 403, and the number of stirring plates 404 on the connecting plate 403 is multiple, and the multiple stirring plates 404 are evenly spaced and arranged on the connecting plate The outer wall of 403 strengthens the connection effect between the motor 401 and the connecting plate 403, so that the connecting plate 403 drives the stirring plate 404 to rotate, so that the multiple stirring plates 404 mix the materials in the reactor 2. The bottom of the connecting plate 403 is fixedly connected to the spiral feeding plate 405. The outer wall of the rotating rod 402 is fixedly connected to the first gear 406. The outer wall of the first gear 406 is meshed with the second gear 407. The outer wall of the second gear 407 is meshed with the third gear 408. The first gear 406 forms a rotating structure with the third gear 408 through the second gear 407, and the second gear 407 is arranged between the first gear 406 and the third gear 408. The connection effect between the first gear 406 and the second gear 407 is strengthened, so that the first gear 406 drives the second gear 407 and then drives the third gear 408 to rotate. The outer wall of the third gear 408 is fixedly connected to the rotating drum 409, and the outer wall of the rotating drum 409 is fixedly connected to the fixing ring 410. The outer wall of the fixing ring 410 is fixedly connected to the stirring frame 411. The rotating drum 409 forms a fixed structure with the stirring frame 411 through the fixing ring 410, and the fixing ring 410 is arranged between the rotating drum 409 and the stirring frame 411, which strengthens the connection effect between the rotating drum 409 and the fixing ring 410, so that when the rotating drum 409 rotates, it can rely on the fixing ring 410 to drive the stirring frame 411 1 is rotated, the motor 401 is started, and the motor 401 drives the rotating rod 402 to rotate, and the rotating rod 402 drives the connecting plate 403 to rotate, and the connecting plate 403 drives the stirring plate 404 to rotate to stir the material. In addition, when the rotating rod 402 rotates, it can drive the first gear 406 to rotate, and the first gear 406 drives the third gear 408 to rotate by relying on the second gear 407, and the third gear 408 drives the fixed ring 410 to rotate by relying on the rotating drum 409, and the fixed ring 410 drives the stirring frame 411 to rotate in the opposite direction, thereby improving the stirring effect of the material through two groups of stirring and stirring in opposite directions.

[0023] In a further preferred embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the scraper assembly 5 includes an electric push rod 501, and the fixed ring 410 forms a telescopic structure with the stirring frame 411 through the electric push rod 501, and the electric push rod 501 is arranged between the fixed ring 410 and the stirring frame 411, which strengthens the connection effect between the fixed ring 410 and the electric push rod 501, so that the electric push rod 501 can push the stirring frame 411 to move under the support of the fixed ring 410, and a limiting groove 502 is provided inside the stirring frame 411, and a spring 503 is fixedly connected to the inside of the limiting groove 502, and one end of the spring 503 is fixedly connected to the scraper 504, and the stirring frame 411 forms a sliding structure with the scraper 504 through the limiting groove 502, and the limiting groove 5 The inner diameter of 02 matches the outer diameter of the scraper 504, and the inner wall of the limiting groove 502 is fitted with the outer wall of the scraper 504, which strengthens the connection effect between the stirring frame 411 and the scraper 504, so that the scraper 504 can be adjusted to slide in the limiting groove 502. The stirring frame 411 forms an elastic structure with the scraper 504 through the spring 503, and the number of springs 503 is two, and the two springs 503 are symmetrically arranged with the horizontal center line of the scraper 504 as the symmetry axis, which strengthens the connection effect between the stirring frame 411 and the spring 503, so that the stirring frame 411 relies on the spring 503 to support the scraper 504, which can improve the effect of supporting the scraper 504.

[0024] Working principle: When in use, the two sets of feed ports 3 on the reactor 2 can be used to add different materials, and during the reaction, the motor 401 can be started to drive the rotating rod 402 to rotate, and the rotating rod 402 drives the connecting plate 403 to rotate, and the connecting plate 403 drives the stirring plate 404 to rotate to stir the materials. In addition, when the rotating rod 402 rotates, it can drive the first gear 406 to rotate, and the first gear 406 drives the third gear 408 to rotate by relying on the second gear 407, and the third gear 408 drives the fixed ring 410 to rotate by relying on the rotating drum 409, so that the fixed ring 410 drives the stirring frame 4 11 rotates in the opposite direction, and then through two groups of stirring, stirring in opposite directions, which can improve the stirring effect of the material. In addition, when the reactor 2 needs to be cleaned, the motor 401 is reversed, so that the spiral feeding piece 405 conveys the material to the discharge port of the reactor 2 for unloading, and at the same time, the electric push rods 501 on both sides are started, so that the electric push rods 501 drive the stirring frame 411 to move, so that the scraper 504 in the stirring frame 411 contacts the inside of the reactor 2, and with the support of the spring 503 in the scraper 504, the pressure of the scraper 504 on the inner wall of the reactor 2 can be adjusted at any time. At this time, when the motor 401 is reversed, it drives the scraper 504 to scrape out the material on the inner wall of the reactor 2.

[0025] It should be noted that the above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emulsification reactor for producing aqueous polyurethane emulsion, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a reactor (2), the outer wall of the reactor (2) is fixedly connected to a feed port (3), a stirring assembly (4) is provided inside the reactor (2), and a scraping assembly (5) is provided on one side of the stirring assembly (4); The stirring assembly (4) comprises a motor (401), the output shaft of the motor (401) is fixedly connected to a rotating rod (402) via a coupling, the outer wall of the rotating rod (402) is fixedly connected to a connecting plate (403), the outer wall of the connecting plate (403) is fixedly connected to a stirring plate (404), the bottom of the connecting plate (403) is fixedly connected to a spiral feeding plate (405), the outer wall of the rotating rod (402) is fixedly connected to a first gear (406), the outer wall of the first gear (406) is meshedly connected to a second gear (407), the outer wall of the second gear (407) is meshedly connected to a third gear (408), the outer wall of the third gear (408) is fixedly connected to a rotating drum (409), the outer wall of the rotating drum (409) is fixedly connected to a fixing ring (410), and the outer wall of the fixing ring (410) is fixedly connected to a stirring frame (411).

2. The emulsification reactor for producing aqueous polyurethane emulsion according to claim 1, characterized in that: The motor (401) forms a rotating structure through the connecting plate (403) and the stirring plate (404), and the connecting plate (403) has a plurality of stirring plates (404), and the plurality of stirring plates (404) are evenly spaced and arranged on the outer wall of the connecting plate (403).

3. The emulsification reactor for producing aqueous polyurethane emulsion according to claim 1, characterized in that: The first gear (406) forms a rotating structure through the second gear (407) and the third gear (408), and the second gear (407) is arranged between the first gear (406) and the third gear (408).

4. The emulsification reactor for producing aqueous polyurethane emulsion according to claim 1, characterized in that: The rotating drum (409) forms a fixed structure through a fixing ring (410) and a stirring frame (411), and the fixing ring (410) is arranged between the rotating drum (409) and the stirring frame (411).

5. The emulsification reactor for producing aqueous polyurethane emulsion according to claim 1, characterized in that: The scraper assembly (5) includes an electric push rod (501), a limiting groove (502) is provided inside the stirring frame (411), a spring (503) is fixedly connected inside the limiting groove (502), one end of the spring (503) is fixedly connected to a scraper (504), the stirring frame (411) forms an elastic structure with the spring (503) and the scraper (504), and the number of the springs (503) is two, and the two springs (503) are symmetrically arranged with the horizontal center line of the scraper (504) as the symmetry axis.

6. The emulsification reactor for producing aqueous polyurethane emulsion according to claim 5, characterized in that: The fixed ring (410) forms a telescopic structure with the electric push rod (501) and the stirring frame (411), and the electric push rod (501) is arranged between the fixed ring (410) and the stirring frame (411).

7. The emulsification reactor for producing aqueous polyurethane emulsion according to claim 5, characterized in that: The stirring frame (411) forms a sliding structure with the scraper (504) through the limiting groove (502), the inner diameter of the limiting groove (502) matches the outer diameter of the scraper (504), and the inner wall of the limiting groove (502) is arranged in close contact with the outer wall of the scraper (504).

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