Mixing reaction kettle

Abstract

The utility model discloses a mixing reaction kettle and belongs to the technical field of reaction kettles. The mixing reaction kettle comprises a reaction kettle body and a rotating shaft arranged in the reaction kettle body, a plurality of stirring rods are arranged on the rotating shaft, rotatable stirring blades are arranged on the peripheries of the stirring rods, and the rotatable stirring blades are driven by the rotating shaft to rotate around the rotating shaft and rotate around the stirring rods at the same time, so that substances in the reaction kettle body are mixed and stirred. The plurality of stirring rods are arranged on the rotating shaft in a staggered manner. A heating mechanism is arranged outside the mixing reaction kettle, and a scraping rod mechanism is arranged inside the mixing reaction kettle. Through the arrangement of the plurality of stirring rods and the rotatable stirring blades, multidirectional and three-dimensional mixing and stirring can be realized. A liftable heating mechanism is arranged, so that substances in the reaction kettle body are uniformly heated, and the heating rate is increased; and through the arrangement of a scraping rod mechanism, scraping and replacement of substances on the inner wall are synchronously completed while mixing, stirring and uniform heating are performed, and the mixing, stirring and uniform heating effects can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a mixing reaction kettle used for environmentally friendly coatings. Background Art

[0002] Environmentally friendly paint is a type of paint with low volatile organic compound (VOC) content and little impact on the environment and human health. These paints usually use water-based base materials or other environmentally friendly organic solvents as diluents to reduce pollution to the atmosphere. Environmentally friendly paints require the use of a mixing reactor during the production process.

[0003] At present, the mixing reactors on the market only use a single stirring rod to mix the raw materials of the coating, which will result in incomplete mixing and poor mixing effect. In addition, when heating the coating in the mixing reactor, only a fixed position is heated, which can easily lead to uneven heat distribution, resulting in uneven heating of the environmentally friendly coating in the reactor, affecting the quality of the coating.

[0004] It can be seen that the above existing mixing reactors still have inconveniences and defects in structure, method and use, and are in urgent need of further improvement. How to create a new mixing reactor that can improve the mixing effect through multiple staggered stirring rods and improve the heating uniformity through an adjustable heating mechanism so that the contents of the reactor are heated evenly has become a goal that the industry urgently needs to improve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a mixing reactor, which improves the stirring and mixing effect through a plurality of staggered stirring rods, and also improves the heating uniformity through an adjustable heating mechanism, so that the contents of the reactor are heated evenly, thereby overcoming the shortcomings of the existing mixing reactors.

[0006] In order to solve the above technical problems, the utility model provides a mixing reactor, including a reactor body, a rotating shaft is provided inside the reactor body, a plurality of stirring rods are provided on the rotating shaft, and rotatable stirring blades are provided on the outer periphery of the stirring rods. The rotatable stirring blades are driven by the rotating shaft to rotate around the rotating shaft and at the same time rotate around the stirring rods to achieve mixing and stirring of the substances inside the reactor body.

[0007] As a further improvement, the plurality of stirring rods are divided into at least two layers on the rotating shaft, and the stirring rods distributed in at least two layers are staggeredly arranged on the rotating shaft.

[0008] As a further improvement, at least two rotatable stirring blades are provided at the outer periphery of the stirring rod, and at least two rotatable stirring blades are spaced apart on the stirring rod.

[0009] As a further improvement, the outside of the mixing reactor includes a heating mechanism, which includes a heating ring arranged along the outer periphery of the reactor body, and a lifting mechanism that drives the heating ring to move up and down along the outer periphery of the reactor body.

[0010] As a further improvement, the lifting mechanism adopts a threaded screw mechanism, the threaded screw of the threaded screw mechanism is rotatably arranged on the outside of the reactor body, and the slider of the threaded screw mechanism is fixedly connected to the heating ring;

[0011] The heating mechanism also includes a transmission mechanism connected to the lifting mechanism, the transmission mechanism includes a main driving wheel and an auxiliary driving wheel, and a transmission belt connecting the main driving wheel and the auxiliary driving wheel, the main driving wheel is fixedly connected to the top end of the rotating shaft, and the auxiliary driving wheel is fixedly connected to the top end of the threaded screw. Then, the threaded screw, driven by the rotating shaft and driven by the transmission mechanism, can drive the slider to move up and down thereon, and further drive the heating ring to move up and down along the outer periphery of the reactor body.

[0012] As a further improvement, the interior of the mixing reactor also includes a scraper mechanism, which includes a scraper, an inner gear ring, a transmission gear and a driving gear. The driving gear is fixed on the upper part of the rotating shaft, and the central column of the transmission gear is fixed on the top wall of the reactor body. The outer periphery of the transmission gear is respectively meshed with the driving gear and the inner gear ring, and the inner gear ring is arranged along the inner wall of the reactor body. The scraper is fixed at the lower part of the inner gear ring. Then, the scraper is driven by the rotating shaft and rotates along the inner wall of the reactor body through the transmission of the driving gear, the transmission gear and the inner gear ring, so as to scrape off the material on the inner wall of the reactor body.

[0013] As a further improvement, a limiting groove is provided at the bottom of the reactor body for sliding of the bottom end of the scraper rod.

[0014] As a further improvement, the scraper rods include at least two, and the two scraper rods are evenly arranged at the lower part of the inner gear ring.

[0015] As a further improvement, the bottom end of the rotating shaft passes through the bottom of the reactor body and is connected to the output end of the motor.

[0016] As a further improvement, a feed pipe is provided on the top of the reactor body, a discharge pipe is provided on the bottom, and a liquid discharge pump is provided on the discharge pipe.

[0017] After adopting such a design, the utility model has at least the following advantages:

[0018] 1. The mixing reactor of the utility model can realize multi-directional and three-dimensional mixing and stirring by setting a plurality of staggered stirring rods and a rotatable stirring blade, which can greatly improve the mixing and stirring effect and is conducive to meeting the mixing effect of environmentally friendly coatings.

[0019] 2. The adjustable heating mechanism is set to make the heating ring move up and down along the reactor body, so that different positions of the reactor body can be heated, so that the heat is evenly distributed, so that the material in the reactor body is evenly heated and the heating rate is improved. The combination of the rotating shaft and the transmission mechanism can achieve both stirring and heating effects under the action of the same power mechanism, with a simple structure, convenient and practical.

[0020] 3. The scraper mechanism is also set up to further utilize the rotation of the rotating shaft to scrape off the paint on the inner wall of the reactor body while mixing and stirring, so that the paint on the inner wall can be mixed evenly. In addition, the scraper structure is also coordinated with the heating mechanism to further improve the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 The overall structure of the mixed reactor of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The overall structure of the mixed reactor of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure inside the reactor body of the hybrid reactor of the utility model;

[0025] Figure 4 The utility model is a schematic diagram of the structure of the rotating shaft and the scraper mechanism of the mixing reactor.

[0026] Among them, 1. secondary pulley; 2. limit block; 3. threaded rod; 4. fixed plate; 5. discharge pump; 6. reactor body; 7. heating ring; 8. feed pipe; 9. main pulley; 10. motor; 11. transmission gear; 12. fixed column; 13. driving gear; 14. inner gear ring; 15. rotating shaft; 16. stirring rod; 17. stirring blade; 18. scraper rod. DETAILED DESCRIPTION

[0027] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0028] Refer to the attached Figures 1 to 3 As shown, the mixing reactor of this embodiment includes a reactor body 6, and a rotating shaft 15 is provided inside the reactor body 6. The bottom end and the top end of the rotating shaft 15 respectively pass through the bottom and the top of the reactor body 6, and the bottom end is connected to the output end of the motor 10, so that the motor 10 drives the rotating shaft 15 to rotate inside the reactor body 6.

[0029] In this embodiment, the top of the reactor body 6 is also provided with a feed pipe 8 for adding the material to be mixed and stirred, such as environmentally friendly paint, into the reactor body 6. The bottom of the reactor body 6 is also provided with a discharge pipe, and a discharge pump 5 is provided on the discharge pipe for discharging the mixed material from the reactor body 6.

[0030] The rotating shaft 15 is provided with a plurality of stirring rods 16, and the outer periphery of the stirring rods 16 is provided with rotatable stirring blades 17. Driven by the rotating shaft 15, the rotatable stirring blades 17 rotate around the rotating shaft 15 and the stirring rods 16 at the same time, and the rotation direction changes randomly, so that the coating in the reactor body 6 can be stirred and mixed from different directions, thereby improving the mixing effect.

[0031] See attached Figure 3 and 4 As shown, in this embodiment, the plurality of stirring rods 16 are divided into three layers on the rotating shaft 15, and the stirring rods 16 distributed in three layers are staggered on the rotating shaft 15, which can achieve a multi-directional and three-dimensional mixing and stirring effect.

[0032] In this embodiment, three rotatable stirring blades 17 are provided on the outer periphery of the stirring rod 16. The three rotatable stirring blades 17 are arranged at intervals on the stirring rod 16 to form stirring in different diameter areas centered on the rotating shaft 15, further improving the stirring effect.

[0033] Please refer to the attached Figure 1 and 2 As shown, the outside of the mixing reactor includes a heating mechanism. The heating mechanism includes a heating ring 7 arranged along the outer periphery of the reactor body 6, and a lifting mechanism that drives the heating ring 7 to move up and down along the outer periphery of the reactor body 6.

[0034] The lifting mechanism in this embodiment adopts a threaded screw mechanism, and the threaded screw 3 of the threaded screw mechanism is fixed to the outside of the reactor body 6 through the upper fixing plate and the lower fixing plate 4, and the threaded screw 3 is rotatable relative to the upper fixing plate and the lower fixing plate 4. The slider 2 of the threaded screw mechanism is fixedly connected to the heating ring 7. The threaded screw mechanism can drive the slider 2 to move up and down through the rotation of the threaded screw 3, and then drive the heating ring 7 to move up and down, so as to provide heat to the reactor body 6 and heat the substances inside the reactor body 6.

[0035] The heating mechanism described in this embodiment also includes a transmission mechanism connected to the lifting mechanism, and the transmission mechanism includes a main pulley 9 and a secondary pulley 1, and a belt 19 connecting the main pulley 9 and the secondary pulley 1. The main pulley 9 is fixedly connected to the top of the rotating shaft 15, and the secondary pulley 1 is fixedly connected to the top of the threaded screw 3. Then, the threaded screw 3 is driven by the rotating shaft 15 and is transmitted by the transmission mechanism to drive the slider 2 to move up and down thereon, thereby driving the heating ring 7 to move up and down along the outer periphery of the reactor body 6.

[0036] Please refer to the attached Figure 3 and 4 As shown, the interior of the mixing reactor also includes a scraper mechanism. The scraper mechanism includes a scraper 18, an inner gear ring 14, a transmission gear 11 and a driving gear 13. The driving gear 13 is fixed to the upper part of the rotating shaft 15, and the central column 12 of the transmission gear 11 is fixed to the top wall of the reactor body 6. The outer periphery of the transmission gear 11 is meshed with the driving gear 13 and the inner gear ring 14 on both sides, and the inner gear ring 14 is arranged along the inner wall of the reactor body 6. The scraper 18 is fixed to the lower part of the inner gear ring 14. Then, the scraper 18 is driven by the rotating shaft 15 and rotates along the inner wall of the reactor body 6 through the transmission of the driving gear 13, the transmission gear 11 and the inner gear ring 14 to scrape the material on the inner wall of the reactor body 6. Since the driving gear 13 and the transmission gear 11 have opposite rotation directions, and the transmission gear 11 and the inner gear ring 14 have the same rotation direction, the scraper 18 and the stirring rod 16 have opposite rotation directions, which can achieve a better scraping effect.

[0037] The bottom of the reactor body 6 is provided with a limiting groove for the bottom end of the scraper rod 18 to slide, so as to ensure the smooth sliding of the scraper rod 18 .

[0038] In this embodiment, the scraping rods 18 include at least two, and the two scraping rods 18 are evenly arranged at the lower part of the inner gear ring 14, so as to scrape off the paint on the inner wall of the reactor body 6 more timely.

[0039] When the utility model mixing reactor is used, the motor 10 is started to rotate the rotating shaft 15, the rotating shaft 15 rotates the stirring rod 16, and the stirring rod 16 rotates the stirring blade 17 to achieve mixing and stirring of the environmentally friendly paint in the reactor body 6. At the same time, the rotating shaft 15 rotates the driving gear 13, the driving gear 13 rotates the transmission gear 11, the transmission gear 11 rotates the inner gear ring 14, and the inner gear ring 14 moves the scraper rod 18, so as to scrape off the paint on the inner wall of the reactor body 6, so that the paint on the inner wall is mixed evenly. At the same time, the rotating shaft 15 rotates the main pulley 9, the main pulley 9 rotates the secondary pulley 1 through the belt, and the secondary pulley 1 rotates the threaded rod 3. Due to the thread effect of the threaded rod 3, the slider 2 moves, thereby moving the heating ring 7 up and down, so as to heat different positions of the reactor body 6 and evenly distribute the heat. And as the scraper rod 18 scrapes off and replaces the paint on the side wall of the reactor body 6 during heating, new paint can be adhered to the side wall of the reactor body 6 to achieve heating of the newly adhered paint, and this process is repeated, greatly improving the heating efficiency.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art may make some simple modifications, equivalent changes or modifications using the technical contents disclosed above, which are all within the protection scope of the present invention.

Claims

1. A mixing reactor, comprising a reactor body, characterized in that: A rotating shaft is provided inside the reactor body, a plurality of stirring rods are provided on the rotating shaft, rotatable stirring blades are provided on the outer periphery of the stirring rods, and the rotatable stirring blades are driven by the rotating shaft to rotate around the rotating shaft and the stirring rods at the same time to achieve mixing and stirring of the substances inside the reactor body.

2. The mixing reactor according to claim 1, characterized in that: The plurality of stirring rods are at least divided into two layers on the rotating shaft, and the stirring rods distributed in at least two layers are staggeredly arranged on the rotating shaft.

3. The mixing reactor according to claim 2, characterized in that: At least two rotatable stirring blades are arranged on the outer periphery of the stirring rod, and at least two rotatable stirring blades are arranged on the stirring rod at intervals.

4. The mixing reactor according to claim 1, characterized in that: The outside of the mixing reactor comprises a heating mechanism, which comprises a heating ring arranged along the outer periphery of the reactor body, and a lifting mechanism driving the heating ring to move up and down along the outer periphery of the reactor body.

5. The mixing reactor according to claim 4, characterized in that: The lifting mechanism adopts a threaded screw mechanism, the threaded screw of the threaded screw mechanism is rotatably arranged on the outside of the reactor body, and the slider of the threaded screw mechanism is fixedly connected to the heating ring; The heating mechanism also includes a transmission mechanism connected to the lifting mechanism, the transmission mechanism includes a main driving wheel and an auxiliary driving wheel, and a transmission belt connecting the main driving wheel and the auxiliary driving wheel, the main driving wheel is fixedly connected to the top end of the rotating shaft, and the auxiliary driving wheel is fixedly connected to the top end of the threaded screw. Then, the threaded screw, driven by the rotating shaft and driven by the transmission mechanism, can drive the slider to move up and down thereon, and further drive the heating ring to move up and down along the outer periphery of the reactor body.

6. The mixing reactor according to claim 1, characterized in that: The interior of the mixing reactor also includes a scraper mechanism, which includes a scraper, an inner gear ring, a transmission gear and a driving gear. The driving gear is fixed on the upper part of the rotating shaft, and the central column of the transmission gear is fixed on the top wall of the reactor body. The outer periphery of the transmission gear is respectively meshed with the driving gear and the inner gear ring. The inner gear ring is arranged along the inner wall of the reactor body, and the scraper is fixed at the lower part of the inner gear ring. Then, the scraper is driven by the rotating shaft and rotates along the inner wall of the reactor body through the transmission of the driving gear, the transmission gear and the inner gear ring, so as to scrape the material on the inner wall of the reactor body.

7. The mixing reactor according to claim 6, characterized in that: The bottom of the reactor body is provided with a limiting groove for the bottom end of the scraper rod to slide.

8. The mixing reactor according to claim 6, characterized in that: The scraper rods include at least two, and the two scraper rods are evenly arranged at the lower part of the inner gear ring.

9. The mixing reactor according to claim 1, characterized in that: The bottom end of the rotating shaft passes through the bottom of the reactor body and is connected to the output end of the motor.

10. The mixing reactor according to claim 1, characterized in that: The top of the reactor body is also provided with a feed pipe, the bottom is also provided with a discharge pipe, and the discharge pipe is provided with a liquid discharge pump.

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