Reactor for preparing polymer microspheres

Abstract

The utility model discloses a reactor for preparing polymer microspheres, which comprises an outer main body, support legs are fixed on the lower side of the outer main body, an upper cover is mounted at the upper end of the outer main body, a continuous phase liquid inlet is formed in the upper cover, a stirring component is mounted on the upper cover, a water inlet and a water outlet are formed in the outer side of the outer main body, and the outer side of the outer main body is provided with a water inlet and a water outlet. An inner main body is arranged in the outer main body, guide vanes are fixed on the inner wall of the outer main body, and the guide vanes are positioned between the outer main body and the inner main body. According to the reactor for preparing the polymer microspheres, the stirring blades are arranged on the outer side of the microporous ceramic filter tube and spirally cover the outer side of the microporous ceramic filter tube, so that continuous phase liquid can comprehensively act on the wall of the microporous ceramic filter tube through rotation of the stirring blades, and the wall of the microporous ceramic filter tube is subjected to relatively uniform shearing force of the continuous phase liquid; therefore, small liquid drops seeping from the through holes in the wall of the microporous ceramic filter tube can be comprehensively and normally washed down by continuous phase liquid, and the forming quality of polymer microspheres is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a reactor for preparing polymer microspheres. Background Technology

[0002] Polymer microspheres are tiny spherical particles composed of high molecular weight polymers. They possess excellent thermal stability, solvent resistance, abrasion resistance, strong adsorption capacity, and high surface reactivity, making them promising for applications in many fields such as information technology, electronic science, coatings, and medicine.

[0003] Existing patent publication (announcement) number CN211754979U discloses a reactor for preparing polymer microspheres. It includes a heated and stirred reaction vessel, with an annular manifold consisting of an annular groove and an annular cover plate fixedly installed on the inner side of the vessel body. Multiple microporous ceramic filter tubes with sealed bottom ends are arranged in a ring on the lower side of the annular groove, connecting to the annular cavity. The annular cover plate has a manifold inlet connected to the annular cavity. A bottom inlet is located at the bottom of the vessel body. A continuous phase inlet and a dispersed phase inlet are located on the vessel cover. The dispersed phase inlet inside the vessel cover is connected to the manifold inlet via a high-pressure hose. This reactor has a reasonable structure, is easy to operate, and produces polymer microspheres with uniform particle size and stable quality.

[0004] In the aforementioned existing patents, small droplets seep out through the permeable pores of the microporous ceramic filter tube wall, and the continuous phase liquid is stirred by an arc plate to flush the droplets down. However, the overall rotational flow of the continuous phase liquid in the device results in differences in the liquid shear force acting on the microporous ceramic filter tube wall, which leads to different flushing effects on the droplets and thus affects the quality of polymer microsphere formation. Therefore, we propose a reactor for preparing polymer microspheres to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a reactor for preparing polymer microspheres, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reactor for preparing polymer microspheres, comprising an outer body, a support leg fixed to the lower side of the outer body, a top cover installed at the upper end of the outer body, a continuous phase liquid inlet on the top cover, a stirring assembly installed on the top cover, a water inlet and a water outlet on the outer side of the outer body, an inner body inside the outer body, a guide vane fixed on the inner wall of the outer body, the guide vane being located between the outer body and the inner body, a discharge outlet at the bottom of the outer body, a liquid passage chamber installed at the bottom of the outer body, a microporous ceramic filter tube installed on the upper side of the liquid passage chamber, and a dispersed phase liquid inlet at the lower side of the liquid passage chamber.

[0007] Preferably, the stirring assembly includes a motor, pulleys, a transmission belt, and stirring blades. The motor is mounted on the upper cover, and the stirring blades are mounted on the upper cover with bearings. The outer ends of the stirring blades are fixed with pulleys, and the pulleys are interconnected by transmission belts.

[0008] Preferably, the stirring blade is spiral in shape, and the stirring blade covers the outside of the microporous ceramic filter tube, and the inner diameter of the stirring blade is larger than the outer diameter of the microporous ceramic filter tube, and the lower end of the stirring blade is movably connected to the lower end of the microporous ceramic filter tube.

[0009] Preferably, the outer body and the inner body form a cavity structure, the guide vane is spiral in shape within the cavity structure, and the inner diameter of the guide vane is larger than the outer diameter of the inner body.

[0010] Preferably, the height of the guide vane is equal to the distance between the inlet and the outlet.

[0011] Preferably, both the liquid passage chamber and the microporous ceramic filter tube are fixed to the bottom of the outer body, and the interior of the microporous ceramic filter tube is connected to the interior of the liquid passage chamber.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The reactor for preparing polymer microspheres is equipped with stirring blades on the outside of the microporous ceramic filter tube. The stirring blades are spirally covered on the outside of the microporous ceramic filter tube. Therefore, by rotating the stirring blades, the continuous liquid can act on the wall of the microporous ceramic filter tube. In this way, the wall of the microporous ceramic filter tube is subjected to relatively uniform shear force from the continuous liquid. As a result, the small droplets that seep out through the permeable pores of the microporous ceramic filter tube wall can be completely and normally washed down by the continuous liquid, ensuring the quality of polymer microsphere forming.

[0014] (2) A guide vane is provided between the outer body and the inner body to guide the incoming high-temperature hot water in a spiral manner. The high-temperature hot water can fully act on the inner body, ensuring the working quality of the water bath reaction in the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer main body of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the microporous ceramic filter tube and the stirring blade of this utility model;

[0019] Figure 5This is a schematic diagram of the stirring blade structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the microporous ceramic filter tube structure of this utility model.

[0021] In the diagram: 1. Outer body; 2. Support leg; 3. Inlet; 4. Outlet; 5. Top cover; 6. Motor; 7. Pulley; 8. Drive belt; 9. Continuous phase liquid inlet; 10. Outlet; 11. Inner body; 12. Guide vane; 13. Dispersed phase liquid inlet; 14. Liquid passage chamber; 15. Microporous ceramic filter tube; 16. Stirring blade. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 The present invention provides a technical solution: a reactor for preparing polymer microspheres, comprising an outer body 1, a support leg 2 fixed on the lower side of the outer body 1, an upper cover 5 installed on the upper end of the outer body 1, a continuous liquid inlet 9 opened on the upper cover 5, and a stirring assembly installed on the upper cover 5.

[0024] Furthermore, the stirring assembly includes a motor 6, a pulley 7, a transmission belt 8, and stirring blades 16. The motor 6 is mounted on the upper cover 5, and the stirring blades 16 are mounted on the upper cover 5 with bearings. The outer ends of the stirring blades 16 are fixed with pulleys 7, and the pulleys 7 are interconnected with the transmission belts 8. The stirring blades 16 on the upper cover 5 can be driven by the motor 6 and interconnected by the pulleys 7 and the transmission belts 8 to achieve synchronous rotation of the stirring blades 16, thereby performing normal stirring work.

[0025] Furthermore, the stirring blade 16 is spiral in shape and covers the outside of the microporous ceramic filter tube 15. The rotation of the stirring blade 16 can fully act on the microporous ceramic filter tube 15, ensuring the quality of polymer microsphere molding. The inner diameter of the stirring blade 16 is larger than the outer diameter of the microporous ceramic filter tube 15. The lower end of the stirring blade 16 is movably connected to the lower end of the microporous ceramic filter tube 15, ensuring the stable rotation of the stirring blade 16 without affecting the normal working state of the microporous ceramic filter tube 15.

[0026] The outer body 1 has an inlet 3 and an outlet 4 on its outer side. The inner body 11 is located inside the outer body 1. A guide vane 12 is fixed on the inner wall of the outer body 1. The guide vane 12 is located between the outer body 1 and the inner body 11. An outlet 10 is located at the bottom of the outer body 1.

[0027] Furthermore, a cavity structure is formed between the outer body 1 and the inner body 11. The guide vane 12 is spiral-shaped inside the cavity structure, and the inner diameter of the guide vane 12 is larger than the outer diameter of the inner body 11. This allows the hot water inside the cavity structure to flow spirally through the guide vane 12, thereby fully acting on the inner body 11 and ensuring the normal operation of the water bath.

[0028] Furthermore, the height of the guide vane 12 is equal to the distance between the inlet 3 and the outlet 4, ensuring that the guide vane 12 will not affect the normal water flow.

[0029] The bottom of the outer body 1 is equipped with a liquid passage chamber 14, the upper side of the liquid passage chamber 14 is equipped with a microporous ceramic filter tube 15, and the lower side of the liquid passage chamber 14 is provided with a dispersed phase liquid inlet 13.

[0030] Furthermore, both the liquid passage chamber 14 and the microporous ceramic filter tube 15 are fixed to the bottom of the outer body 1, and the inside of the microporous ceramic filter tube 15 is connected to the inside of the liquid passage chamber 14, which not only ensures the stable working state of the microporous ceramic filter tube 15, but also enables normal liquid passage within the microporous ceramic filter tube 15.

[0031] Specifically, when using the reactor for preparing polymer microspheres, the continuous liquid phase is first injected into the inner body 11 of the outer body 1 through the continuous liquid phase inlet 9, while the outlet 10 at the bottom of the outer body 1 is sealed to ensure that the continuous liquid phase works stably in the inner body 11.

[0032] Then, hot water is injected into the cavity between the outer body 1 and the inner body 11 through the inlet 3. As the hot water fills the cavity, it will be discharged from the outlet 4. When the hot water flows in the cavity, the presence of the guide vane 12 can guide the flow of hot water to a certain extent, thus ensuring that the outlet 10 is fully heated.

[0033] Then, the dispersed liquid is injected into the liquid passage chamber 14 through the dispersed liquid inlet 13. The dispersed liquid will then enter the microporous ceramic filter tube 15. With the continuous injection and pressurization of the dispersed liquid, small droplets can seep out from the permeable pores of the wall of the microporous ceramic filter tube 15.

[0034] At the same time, the motor 6 is started. The motor 6 drives the stirring blade 16 to rotate on the upper cover 5 through the pulley 7 and the transmission belt 8. The stirring blade 16 is in a rotating state on the outside of the microporous ceramic filter tube 15, which can fully stir the continuous liquid on the outside of the microporous ceramic filter tube 15, so that the small droplets on the outer wall of the microporous ceramic filter tube 15 are completely washed off. The washed-off small droplets are suspended in the continuous liquid. The continuous liquid is heated by the hot water between the inner body 11 and the outer body 1 to carry out the maturation reaction. The resulting polymer microspheres have uniform particle size and stable quality.

[0035] After the polymer microspheres are formed, the polymer microspheres and the continuous liquid mixture can be discharged through the discharge port 10 for filtration and separation to obtain the polymer microsphere product.

[0036] The above describes the working process of the reactor. Any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A reactor for preparing polymer microspheres, comprising an outer body (1), characterized in that: The outer body (1) is fixed with a support leg (2) on the lower side, and the upper end of the outer body (1) is equipped with a top cover (5). The top cover (5) has a continuous phase liquid inlet (9) and a stirring assembly is installed on the top cover (5). The outer body (1) has an inlet (3) and an outlet (4) on its outer side. The inner body (1) has an inner body (11) inside the outer body (1). A guide vane (12) is fixed on the inner wall of the outer body (1). The guide vane (12) is located between the outer body (1) and the inner body (11). The bottom of the outer body (1) has an outlet (10). The outer body (1) has a liquid passage chamber (14) installed at the bottom, a microporous ceramic filter tube (15) installed on the upper side of the liquid passage chamber (14), and a dispersed liquid inlet (13) provided on the lower side of the liquid passage chamber (14).

2. The reactor for preparing polymer microspheres according to claim 1, characterized in that: The stirring assembly includes a motor (6), a pulley (7), a transmission belt (8), and stirring blades (16). The motor (6) is mounted on the upper cover (5). The stirring blades (16) are mounted on the upper cover (5) with bearings. The outer end of the stirring blades (16) is fixed with a pulley (7). The pulleys (7) are connected to each other by the transmission belts (8).

3. The reactor for preparing polymer microspheres according to claim 2, characterized in that: The stirring blade (16) is spiral in shape and covers the outside of the microporous ceramic filter tube (15). The inner diameter of the stirring blade (16) is larger than the outer diameter of the microporous ceramic filter tube (15). The lower end of the stirring blade (16) is movably connected to the lower end of the microporous ceramic filter tube (15).

4. The reactor for preparing polymer microspheres according to claim 1, characterized in that: The outer body (1) and the inner body (11) form a cavity structure. The guide vane (12) is spiral in the cavity structure, and the inner diameter of the guide vane (12) is larger than the outer diameter of the inner body (11).

5. The reactor for preparing polymer microspheres according to claim 4, characterized in that: The height of the guide vane (12) is equal to the distance between the inlet (3) and the outlet (4).

6. The reactor for preparing polymer microspheres according to claim 1, characterized in that: The liquid passage chamber (14) and the microporous ceramic filter tube (15) are both fixed to the bottom of the outer body (1), and the inside of the microporous ceramic filter tube (15) is connected to the inside of the liquid passage chamber (14).

Images