A new type of chain extender production crystallization kettle

Abstract

The utility model discloses a novel crystallization kettle for producing chain extenders, and relates to the technical field of chain extender production, including a crystallization kettle body, which is suitable for chain extender production and use, wherein the crystallization kettle body includes a tank shell, a discharge port is fixedly installed on the front bottom end of the tank shell, a sealing cover plate is detachably engaged on the top of the tank shell, and a mixing unit is arranged inside the tank shell. The utility model drives a driving rod to rotate at a uniform speed by setting a driving motor, drives the driving gear to cause the driven gear to follow the rotation, and at this time, the rotating rod follows the rotation, drives the stirring rod and the mixing blades to rotate between the raw materials to stir the chain extender, and sets a rotating ring to follow the rotation of the driving rod to cause the scraper horizontal plate to rotate at the inner bottom end of the tank shell, scrapes and stirs the inner bottom end to prevent precipitation, and at the same time drives the scraper vertical plate to rotate and fit on the inner wall of the tank shell to scrape off the attached raw materials, further promoting the effect of uniform mixing.

Description

Technical Field

[0001] The utility model relates to the technical field of chain extender production, in particular to a novel crystallization kettle for chain extender production. Background Art

[0002] Chain extenders refer to compounds that can promote the extension and expansion of molecular chains, and can quickly extend and crosslink the polyurethane reactant system; they can effectively adjust the reactants and reaction speeds. Different types of crosslinkers and dosages can be used to adjust process parameters such as the viscosity growth of reactants to meet the processing requirements and affect certain properties of polyurethane. Therefore, in the production of polyurethane, it is necessary to add accurate weights of chain extenders to improve the performance of polyurethane. Chain extenders require a crystallization kettle for processing reactions during production.

[0003] During the production of chain extenders, a stirring device is required to stir them so that they are evenly mixed, thereby promoting crystallization. Currently, most chain extenders are produced by using a motor to drive a stirring rod to rotate and stir the materials. However, this method results in uneven stirring, and the materials are easily precipitated at the bottom of the reaction tank, reducing the crystallization efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a novel crystallization kettle for producing a chain extender to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A novel crystallization kettle for producing chain extenders comprises a crystallization kettle body, which is suitable for the production of chain extenders. The crystallization kettle body comprises a tank shell, a discharge port is fixedly installed on the front bottom end of the tank shell, and a sealing cover plate is detachably engaged on the top of the tank shell.

[0007] A mixing unit is arranged inside the tank shell, and a scraping unit is arranged on the inner wall of the tank shell.

[0008] A further improvement of the technical solution of the utility model is that the mixing unit includes a bracket fixedly installed on the top of the sealing cover plate, a driving motor is fixedly installed on the top of the bracket, a driving rod is fixedly installed on the output end of the driving motor, and the other end of the driving rod is rotatably installed on the inner bottom end of the tank shell, and the bracket facilitates the installation and support of the driving motor.

[0009] A further improvement of the technical solution of the utility model is that a driving gear is fixedly sleeved on the outer surface of the top end of the driving rod, driven gears are meshedly connected on both sides of the driving gear, and a rotating rod is fixedly installed on the bottom of the driven gear.

[0010] A further improvement of the technical solution of the utility model is that a stirring rod is fixedly sleeved on the outer surface of the rotating rod, and a mixing blade is fixedly sleeved on the outer surface of the driving rod. The stirring rod and the mixing blade rotate simultaneously, so that the mixing is more uniform.

[0011] A further improvement of the technical solution of the utility model is that the scraper unit includes a rotating ring fixedly sleeved on the outer surface of the bottom end of the driving rod, a scraper cross plate is fixedly connected to the outer surface of the rotating ring, and the scraper cross plate is fitly connected to the inner bottom end of the tank shell. The scraper cross plate scrapes the inner bottom end of the tank shell to prevent material sedimentation.

[0012] A further improvement of the technical solution of the utility model is that a connecting plate is fixedly installed on the other end of the scraper horizontal plate, a scraper vertical plate is fixedly installed on the outer surface of the connecting plate, and the scraper vertical plate is closely connected to the inner wall of the tank shell, and the scraper vertical plate can prevent the material from adhering to the inner wall of the crystallization kettle.

[0013] A further improvement of the technical solution of the utility model is that: a snap-fit ​​groove is provided on the top of the shell of the tank shell, connecting ears are fixedly installed on the four sides of the sealing cover plate, an electric telescopic column is fixedly installed on the bottom end of the connecting ear, a sealing ring is fixedly installed on the bottom end of the sealing cover plate, the sealing ring is movably snap-fitted inside the snap-fit ​​groove, and the electric telescopic column drives the sealing cover plate to snap-fit ​​on the top of the tank shell to achieve a sealing effect.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a new type of crystallization kettle for producing chain extenders. By setting an electric telescopic column to start and drive the sealing cover plate to gradually move down, the sealing ring is clamped in the inside of the clamping groove to seal the tank shell, prevent the raw materials from splashing out during stirring, and improve the sealing effect of the crystallization kettle.

[0016] 2. The utility model provides a new type of crystallization kettle for producing chain extenders. A driving motor is set to drive a driving rod to rotate at a uniform speed, thereby driving a driving gear to cause a driven gear to follow the rotation. At this time, the rotating rod follows the rotation, driving a stirring rod and a mixing blade to rotate between the raw materials, stirring the chain extender to achieve a uniform mixing effect.

[0017] 3. The utility model provides a new type of crystallization kettle for producing chain extenders. A rotating ring is arranged to rotate with the driving rod to cause the scraper horizontal plate to rotate on the inner bottom end of the tank shell, and the inner bottom end is scraped and stirred to prevent precipitation. At the same time, the scraper vertical plate is driven to rotate and fit on the inner wall of the tank shell to scrape off the raw materials attached to the inner wall, thereby further promoting the effect of uniform mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the tank shell structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the drive motor of the utility model;

[0021] Figure 4 This is a schematic diagram of the stirring rod structure of the utility model;

[0022] Figure 5 It is a schematic structural diagram of the scraper horizontal plate and the scraper vertical plate of the utility model.

[0023] In the figure: 1, crystallization kettle body; 2, tank shell; 21, snap-fit ​​groove; 3, discharge port; 4, sealing cover plate; 41, connecting ear; 42, electric telescopic column; 43, sealing ring; 44, bracket; 45, driving motor; 46, driving rod; 461, mixing blade; 462, rotating ring; 463, scraper horizontal plate; 464, connecting plate; 465, scraper vertical plate; 47, driving gear; 48, driven gear; 49, rotating rod; 410, stirring rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1-5As shown, the utility model provides a novel crystallization kettle for producing chain extenders, a crystallization kettle body 1, which is suitable for use in the production of chain extenders, and the crystallization kettle body 1 includes a tank shell 2, a discharge port 3 is fixedly installed on the front bottom end of the tank shell 2, a sealing cover plate 4 is detachably engaged on the top of the tank shell 2, a mixing unit is arranged inside the tank shell 2, a scraping unit is arranged on the inner wall of the tank shell 2, the mixing unit includes a bracket 44 fixedly installed on the top of the sealing cover plate 4, a driving motor 45 is fixedly installed on the top of the bracket 44, a driving rod 46 is fixedly installed on the output end of the driving motor 45, and the other end of the driving rod 46 is rotatably installed on the inner bottom end of the tank shell 2, a driving gear 47 is fixedly sleeved on the outer surface of the top end of the driving rod 46, and driven gears 48 are meshed and connected on both sides of the driving gear 47, and a rotating rod 49 is fixedly installed on the bottom of the driven gear 48, a stirring rod 410 is fixedly sleeved on the outer surface of the rotating rod 49, and a mixing blade 461 is fixedly sleeved on the outer surface of the driving rod 46.

[0027] Furthermore, the sealing cover plate 4 is gradually moved downward by starting the electric telescopic column 42, so that the sealing ring 43 is engaged in the inside of the engaging groove 21, and the tank shell 2 is sealed to prevent the raw materials from splashing out during stirring. Then, the output end of the driving motor 45 drives the driving rod 46 to rotate at a uniform speed, and then drives the driving gear 47 to cause the driven gear 48 to follow the rotation. At this time, the rotating rod 49 follows the rotation, driving the stirring rod 410 and the mixing blade 461 to rotate between the raw materials, stirring the chain extender to make it mixed evenly.

[0028] Example 2

[0029] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the scraper unit includes a rotating ring 462 fixedly sleeved on the outer surface of the bottom end of the driving rod 46, a scraper cross plate 463 is fixedly connected to the outer surface of the rotating ring 462, the scraper cross plate 463 is fitly connected to the inner bottom end of the tank shell 2, a connecting plate 464 is fixedly installed on the other end of the scraper cross plate 463, a scraper vertical plate 465 is fixedly installed on the outer surface of the connecting plate 464, the scraper vertical plate 465 is fitly connected to the inner wall of the tank shell 2, a snap-fit ​​groove 21 is opened on the top of the shell of the tank shell 2, connecting ears 41 are fixedly installed around the sealing cover plate 4, an electric telescopic column 42 is fixedly installed on the bottom end of the connecting ear 41, a sealing ring 43 is fixedly installed on the bottom end of the sealing cover plate 4, and the sealing ring 43 is movably engaged in the inside of the snap-fit ​​groove 21.

[0030] Furthermore, while stirring, the rotating ring 462 is driven to cause the scraper horizontal plate 463 to rotate on the inner bottom end of the tank shell 2, scraping and stirring the inner bottom end to prevent sedimentation, and at the same time, the scraper vertical plate 465 is driven to rotate and fit on the inner wall of the tank shell 2, scraping off the raw materials attached to the inner wall, further promoting uniform mixing.

[0031] The working principle of the crystallization kettle for producing the new chain extender is described in detail below.

[0032] like Figure 1-5 As shown, when in use, the chain extender raw material is placed inside the tank shell 2. At this time, the sealing cover plate 4 is gradually moved downward by starting the electric telescopic column 42, so that the sealing ring 43 is clamped in the clamping groove 21 to seal the tank shell 2 to prevent the raw material from splashing out during stirring. Then, the output end of the driving motor 45 drives the driving rod 46 to rotate at a uniform speed, and then drives the driving gear 47 to drive the driven gear 48 to follow the rotation. At this time, the rotating rod 49 follows the rotation, driving the stirring rod 410 and the mixing blade 461 to rotate between the raw materials, stirring the chain extender to make it mixed evenly. While stirring, it drives the rotating ring 462 to cause the scraper horizontal plate 463 to rotate on the inner bottom end of the tank shell 2, scrape and stir the inner bottom end to prevent precipitation, and at the same time drives the scraper vertical plate 465 to rotate and fit on the inner wall of the tank shell 2 to scrape the raw material attached to the inner wall, further promoting uniform mixing.

[0033] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A novel crystallization kettle for producing chain extenders, comprising a crystallization kettle body (1), suitable for use in the production of chain extenders, characterized in that: The crystallization kettle body (1) comprises a tank shell (2), a discharge port (3) is fixedly mounted on the front bottom end of the tank shell (2), and a sealing cover plate (4) is detachably engaged with the top of the tank shell (2); A mixing unit is arranged inside the tank shell (2), and a scraping unit is arranged on the inner wall of the tank shell (2); The mixing unit comprises a bracket (44) fixedly mounted on the top of the sealing cover plate (4), a driving motor (45) fixedly mounted on the top of the bracket (44), a driving rod (46) fixedly mounted on the output end of the driving motor (45), and the other end of the driving rod (46) is rotatably mounted on the inner bottom end of the tank shell (2); A driving gear (47) is fixedly sleeved on the outer surface of the top end of the driving rod (46), driven gears (48) are meshedly connected on both sides of the driving gear (47), and a rotating rod (49) is fixedly installed on the bottom of the driven gear (48); A stirring rod (410) is fixedly sleeved on the outer surface of the rotating rod (49), and a mixing blade (461) is fixedly sleeved on the outer surface of the driving rod (46); The scraper unit comprises a rotating ring (462) fixedly sleeved on the outer surface of the bottom end of the driving rod (46), a scraper transverse plate (463) fixedly connected to the outer surface of the rotating ring (462), and the scraper transverse plate (463) is closely connected to the inner bottom end of the tank shell (2); A connecting plate (464) is fixedly mounted on the other end of the scraper transverse plate (463), and a scraper vertical plate (465) is fixedly mounted on the outer surface of the connecting plate (464). The scraper vertical plate (465) is closely connected to the inner wall of the tank shell (2).

2. A novel chain extender production crystallization kettle according to claim 1, characterized in that: The top of the tank shell (2) is provided with a snap-fit ​​groove (21), the sealing cover plate (4) is fixedly provided with connecting ears (41) on the four sides, the bottom end of the connecting ears (41) is fixedly provided with an electric telescopic column (42), the bottom end of the sealing cover plate (4) is fixedly provided with a sealing ring (43), and the sealing ring (43) is movably snap-fitted inside the snap-fit ​​groove (21).

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