Polycondensation kettle with cleaning function

Abstract

The utility model relates to the technical field of polycondensation kettles, in particular to a polycondensation kettle with a cleaning function, which comprises a kettle body and a scraping mechanism arranged on the inner side of the kettle body to scrape and sweep the inner wall of the kettle body. The triangular plate is arranged at the bottom of the scraping ring so as to move along the inner wall of the kettle body when the scraping ring moves up and down to clean the bottom of the scraping ring; the arc grooves are formed in the inner wall of the kettle body in an annular array manner so as to control the moving track of the triangular plate; the motor is adopted to drive the screw rod to rotate, so that the screw rod drives the scraping ring to move up and down to clean the inner wall of the kettle body under the action of threads of the scraping ring, and meanwhile, the inclined block drives the triangular plate and the inner scraping plate to rotate and move along the bottom and the inner side of the scraping ring in the up-and-down moving process of the scraping ring under the resisting action of the inclined block and the sliding groove; and the materials on the surface of the scraping ring are scraped off, the materials are prevented from being accumulated on the surface of the scraping assembly, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polycondensation kettles, in particular to a polycondensation kettle with a cleaning function. Background Art

[0002] A polycondensation reactor is a commonly used equipment in chemical production. It is used to convert low molecular weight compounds into high molecular weight polymers through polymerization reactions. It is usually composed of a reactor, a heating system, a stirring device and a control system. It can perform polymerization reactions under certain temperature, pressure and other conditions to produce various types of polymers, such as plastics and resins. The synthesis of the resin begins with the ester exchange reaction of three alcohol compounds, propylene glycol, ethylene glycol and diethylene glycol, with acid anhydrides to produce hydroxyl compounds and corresponding esters. These hydroxyl compounds undergo polycondensation reactions in the polycondensation reactor to form high molecular weight polyhydroxy compounds. Polyhydroxy compounds may have cross-linking properties, which is the basis for the formation of resins.

[0003] A Chinese patent with publication number CN216727238U discloses a polycondensation kettle, including a kettle body and an additive pipeline. A reaction chamber is arranged inside the kettle body, and the additive pipeline is arranged in the reaction chamber to prevent the additive from being directly sprayed onto the inner wall of the reaction chamber and also to prevent the additive from dripping onto the liquid surface of the reaction chamber and splashing.

[0004] In similar prior art, in the process of producing resin, the polyhydroxy compounds produced are usually not directly used to prepare the resin because they may be too viscous or difficult to handle, causing the produced polyhydroxy compounds to stick to the stirring rod and the inner wall of the condensation reactor and be difficult to clean, affecting the product quality of the next condensation reaction.

[0005] Therefore, the utility model provides a polycondensation kettle capable of cleaning the inside of the polycondensation kettle. Utility Model Content

[0006] Aiming at the problem that it is difficult to clean the materials inside a polycondensation kettle and on a stirring rod in the prior art, a polycondensation kettle with a cleaning function is designed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a condensation reactor with a cleaning function, comprising a reactor body, and also comprising a scraping mechanism, which is arranged on the inner side of the reactor body to scrape the inner wall of the reactor body, comprising a screw and a scraping ring, the screw is installed inside the reactor body through a bearing, the scraping ring is arranged on the inner side of the reactor body and is threadedly connected with the screw; a triangular plate is arranged at the bottom of the scraping ring, so that it moves along the inner wall direction of the reactor body when the scraping ring moves up and down, so as to clean the bottom of the scraping ring; arc grooves are opened on the inner wall of the reactor body in a ring array to control the moving trajectory of the triangular plate.

[0008] Furthermore, a feed pipe is installed through one side of the kettle body, a discharge pipe is installed through the outer side of the kettle body, and the discharge pipe is located at the bottom of the feed pipe, and solenoid valves are respectively installed on the outer sides of the feed pipe and the discharge pipe, a reducer is arranged at the top center of the kettle body, an electric motor is fixedly installed on the top of the kettle body, and the output end of the motor is installed through one side of the reducer, a stirring rod is installed through the top of the kettle body through a bearing, and one end of the stirring rod is installed through the bottom of the reducer.

[0009] Furthermore, the scraping mechanism also includes a motor, and the motor is fixedly installed on the top of the kettle body, the output end of the motor is installed on the top of the kettle body through a bearing, and is fixedly connected to one end of the screw, three guide rods are fixedly installed on the inner side of the kettle body, and the guide rods pass through the interior of the scraper ring, the bottom of the scraper ring is provided with a bottom groove, and the inner side of the scraper ring is provided with an inner groove.

[0010] Furthermore, an inclined block is installed on the side of the triangular plate close to the inner wall of the kettle body, and the inclined block is located on the inner side of the arc groove, an inner scraper is fixedly installed on the side of the triangular plate away from the inner wall of the kettle body, a solid column is provided on the top of the triangular plate, and the solid column is located on the inner side of the bottom groove, and a solid block is fixedly installed on the side of the inner scraper close to the inner wall of the kettle body, and the solid block is located on the inner side of the inner groove.

[0011] Furthermore, a water outlet assembly is provided on the inner side of the kettle body, and the water outlet assembly is located on the top of the scraping mechanism and is configured to clean the inner side of the bottom wall of the kettle body of the stirring rod.

[0012] Furthermore, the water outlet assembly includes a square ring tube, and the square ring tube is fixedly installed on the top of the scraper ring, an opening is opened on the inner side of the square ring tube, a water inlet pipe is installed through the top of the square ring tube, and the water inlet pipe passes through the top of the kettle body.

[0013] Furthermore, an inner ring is slidably installed on the inner side of the opening through two sealed bearings, a plurality of nozzles are installed through the interior of the inner ring, and the nozzles are obliquely downwardly directed toward the stirring rod, a short column is fixedly installed on the bottom of the inner ring, a column groove is opened on the top of the inner scraper, and the short column is located on the inner side of the column groove.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model discloses a polycondensation kettle with a cleaning function, which adopts a motor to drive the screw to rotate, so that the screw utilizes the threaded action with the scraper ring to drive the scraper ring to move up and down to clean the inner wall of the kettle body. At the same time, the resisting action of the inclined block and the slide groove is utilized, so that during the process of the scraper ring moving up and down, the inclined block drives the triangular plate and the inner scraper plate to rotate and move along the bottom and inner side of the scraper ring, so as to scrape off the material on the surface of the scraper ring, prevent the material from accumulating on the surface of the scraper component, and improve the cleaning effect.

[0016] (2) The utility model discloses a polycondensation kettle with a cleaning function, which adopts the linkage between the water outlet assembly and the scraping mechanism. When the scraper moves up and down, the scraper drives the square ring tube to move up and down. Through the interlocking action of the short column and the column groove, when the inner scraper ring rotates, the inner ring and the nozzle are driven to rotate, so that the nozzle rotates while moving up and down, thereby cleaning the stirring rod and the inner side of the bottom wall of the kettle body, and cleaning the inner side of the kettle body in all directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the polycondensation kettle body of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the section of the kettle body of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the scraping mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the triangular block of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the water outlet assembly of the utility model;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the square ring tube of the utility model.

[0024] In the figure: 1, kettle body; 2, feed pipe; 3, discharge pipe; 4, motor; 5, reducer; 6, stirring rod; 701, scraping mechanism; 7, motor; 8, screw; 9, scraper ring; 10, guide rod; 11, bottom groove; 12, inner groove; 13, arc groove; 14, inclined block; 15, triangular plate; 16, inner scraper; 17, solid block; 18, solid column; 1901, water outlet assembly; 19, square ring pipe; 20, opening; 21, water inlet pipe; 22, inner ring; 23, nozzle; 24, short column; 25, column groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] Example:

[0027] like Figure 1-Figure 6As shown, a polycondensation kettle with a cleaning function described in the utility model comprises a kettle body 1, a feed pipe 2 is installed through one side of the kettle body 1, a discharge pipe 3 is installed through the outer side of the kettle body 1, and the discharge pipe 3 is located at the bottom of the feed pipe 2, and electromagnetic valves are respectively installed on the outer sides of the feed pipe 2 and the discharge pipe 3, a reducer 5 is arranged at the center of the top of the kettle body 1, a motor 4 is fixedly installed on the top of the kettle body 1, and the output end of the motor 4 is installed through one side of the reducer 5, a stirring rod 6 is installed through the top of the kettle body 1 through a bearing, and one end of the stirring rod 6 is installed through the bottom of the reducer 5.

[0028] Specifically, the feed pipe 2 can provide a channel for external materials to enter the inner side of the kettle body 1, the discharge pipe 3 can provide a channel for the materials inside the kettle body 1 to the outside, the solenoid valve can control the closing of the feed pipe 2 and the discharge pipe 3, the motor 4 can provide a rotational driving force for the stirring rod 6, and the reducer 5 can reduce the rotation speed of the stirring rod 6 and increase the torque of the stirring rod 6 under the drive of the motor 7.

[0029] In this embodiment, a scraping mechanism 701 is also included, which is arranged on the inner side of the kettle body 1 to scrape the inner wall of the kettle body 1, including a screw 8 and a scraping ring 9. The screw 8 is installed inside the kettle body 1 through a bearing, and the scraping ring 9 is arranged on the inner side of the kettle body 1 and is threadedly connected with the screw 8; a triangular plate 15 is arranged at the bottom of the scraping ring 9 to move along the inner wall direction of the kettle body 1 when the scraping ring 9 moves up and down to clean the bottom of the scraping ring 9; arc grooves 13 are arranged on the inner wall of the kettle body 1 in an annular array to control the moving trajectory of the triangular plate 15. The scraping mechanism 701 also includes a motor 7, and the motor 7 is fixedly installed on the top of the kettle body 1, and the output end of the motor 7 is connected to the bottom of the scraping ring 9 through the shaft. The bearing is installed through the top of the kettle body 1 and is fixedly connected to one end of the screw 8. Three guide rods 10 are fixedly installed on the inner side of the kettle body 1, and the guide rods 10 pass through the interior of the scraper ring 9. A bottom groove 11 is provided at the bottom of the scraper ring 9, and an inner groove 12 is provided on the inner side of the scraper ring 9. An inclined block 14 is installed on the side of the triangular plate 15 close to the inner wall of the kettle body 1, and the inclined block 14 is located on the inner side of the arc groove 13. An inner scraper 16 is fixedly installed on the side of the triangular plate 15 away from the inner wall of the kettle body 1. A solid column 18 is provided on the top of the triangular plate 15, and the solid column 18 is located on the inner side of the bottom groove 11. A solid block 17 is fixedly installed on the side of the inner scraper 16 close to the inner wall of the kettle body 1, and the solid block 17 is located on the inner side of the inner groove 12.

[0030] Specifically, the motor 7 can provide driving force for the screw 8, and the screw 8 can use the threaded action with the scraper ring 9 to drive the scraper ring 9 to move up and down. The guide rod 10 can provide a limiting effect for the scraper ring 9 to ensure that the scraper ring 9 can move up and down normally. When the scraper ring 9 moves up and down, the materials on the surface of the guide rod 10 and the screw 8 can be cleaned up. The inner wall of the kettle body 1 can provide an opening space for the arc groove 13. The arc groove 13 is the movement trajectory of the triangular plate 15 and the inner ring 22. The limiting effect of the arc groove 13 and the inclined block 14 is used to make the triangular plate 15 and the inner ring 22 move up and down along the trajectory of the arc groove 13. The ring plate can provide an opening space for the bottom groove 11 and the inner groove 12. The cooperation of the solid column 18 and the bottom groove 11 can prevent the inclined block 14 from moving out of the inner side of the inclined groove. The cooperation of the solid block 17 and the inner groove 12 can ensure that when the scraper ring 9 moves upward, it drives the triangular plate 15 and the inner ring 22 to move upward together.

[0031] In this embodiment, a water outlet component 1901 is provided on the inner side of the kettle body 1, and the water outlet component 1901 is located at the top of the scraping mechanism 701, and is assembled to clean the inner side of the bottom wall of the kettle body 1 of the stirring rod 6. The water outlet component 1901 includes a square ring tube 19, and the square ring tube 19 is fixedly installed on the top of the scraper ring 9. An opening 20 is provided on the inner side of the square ring tube 19. A water inlet pipe 21 is installed through the top of the square ring tube 19, and the water inlet pipe 21 penetrates the top of the kettle body 1. An inner ring 22 is slidably installed on the inner side of the opening 20 through two sealing bearings. A plurality of nozzles 23 are installed through the interior of the inner ring 22, and the nozzles 23 are obliquely downwardly directed toward the direction of the stirring rod 6. A short column 24 is fixedly installed on the bottom of the inner ring 22. A column groove 25 is provided on the top of the inner scraper 16, and the short column 24 is located on the inner side of the column groove 25.

[0032] Specifically, the scraper ring 9 can provide a stable support for the square ring tube 19, so that the scraper ring 9 can drive the square ring tube 19 to move up and down during the up and down movement. The square ring tube 19 can provide a through-opening space for the opening 20, and the opening 20 can provide a rotation space for the inner ring 22. The opening 20 can provide a stable support for the rotation of the inner ring 22 through the sealed bearing. The inner ring 22 can provide a through support for the nozzle 23, so that the nozzle 23 can spray the water inside the square ring tube 19. The inner ring 22 can provide a stable support for the short column 24. The interlocking action of the short column 24 and the column groove 25 enables the inner ring 22 to rotate during the rotation process, so that the inner ring 22 moves up and down driven by the square ring tube 19, and rotates at the same time driven by the short column 24, so that the inner ring 22 drives the nozzle 23 to clean the stirring rod 6 and the inner side of the bottom wall of the kettle body 1, and cooperates with the scraping mechanism 701 to clean the inside of the kettle body 1 in all directions.

[0033] Working principle: the staff first connects the external water pipe with one end of the water inlet pipe 21. When the inner wall of the kettle body 1 needs to be cleaned, the motor 7 is started to drive the screw 8 to rotate, so that the screw 8 uses the threaded action with the scraper ring 9 to drive the scraper ring 9 to move downward, so that the scraper ring 9 cleans the inner wall of the kettle body 1. At the same time, the scraper ring 9 squeezes the triangular plate 15 downward, and the triangular plate 15 moves along the track direction of the arc groove 13 through the resistance of the inclined block 14 and the arc groove 13. In the process of moving downward, the triangular plate 15 moves along the bottom of the scraper ring 9 with the stirring rod 6 as the center of the circle. The triangular plate 15 and the bottom of the scraper ring 9 move relative to each other, so that the triangular plate 15 cleans the bottom of the scraper ring 9, and the triangular plate 15 drives the inner scraper 16 to clean the inner side of the scraper ring 9, so as to prevent the scraper ring 9 from accumulating materials on the surface of the scraper ring 9 in the process of cleaning the inner wall of the kettle body 1.

[0034] During the movement of the triangular plate 15 and the inner scraper 16, the inner scraper 16 drives the inner ring 22 to rotate through the fitting action of the column groove 25 and the short column 24. The staff transports water to the inner side of the square ring tube 19 through the water inlet pipe 21, so that the water inside the square ring tube 19 is sprayed on the surface of the stirring rod 6 through the nozzle 23. The square ring tube 19 moves up and down with the scraper ring 9, so that the rotation of the inner ring 22 drives the nozzle 23 to rotate together, and the stirring rod 6 is cleaned in all directions. When the scraper ring 9 moves close to the bottom wall of the kettle body 1, the nozzle 23 cleans the inner side of the bottom wall of the kettle body 1, which is convenient for all-round cleaning of the inner side of the kettle body 1.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A polycondensation kettle with a cleaning function, comprising a kettle body (1), characterized in that: Also includes A scraping mechanism (701) is arranged on the inner side of the kettle body (1) to scrape the inner wall of the kettle body (1), comprising a screw (8) and a scraping ring (9), wherein the screw (8) is installed inside the kettle body (1) through a bearing, and the scraping ring (9) is arranged on the inner side of the kettle body (1) and is threadedly connected to the screw (8); A triangular plate (15) is arranged at the bottom of the scraper ring (9) so as to move along the inner wall direction of the kettle body (1) when the scraper ring (9) moves up and down, so as to clean the bottom of the scraper ring (9); The arc grooves (13) are arranged in a circular array on the inner wall of the kettle body (1) so as to control the moving track of the triangular plate (15).

2. The polycondensation reactor with cleaning function according to claim 1, characterized in that: A feed pipe (2) is installed through one side of the kettle body (1), a discharge pipe (3) is installed through the outside of the kettle body (1), and the discharge pipe (3) is located at the bottom of the feed pipe (2), and electromagnetic valves are respectively installed on the outside of the feed pipe (2) and the discharge pipe (3), a reducer (5) is arranged at the center of the top of the kettle body (1), an electric motor (4) is fixedly installed on the top of the kettle body (1), and the output end of the electric motor (4) is installed through one side of the reducer (5), and a stirring rod (6) is installed through the top of the kettle body (1) through a bearing, and one end of the stirring rod (6) is installed through the bottom of the reducer (5).

3. The polycondensation reactor with cleaning function according to claim 1, characterized in that: The scraping mechanism (701) further comprises a motor (7), and the motor (7) is fixedly mounted on the top of the kettle body (1); the output end of the motor (7) is installed on the top of the kettle body (1) through a bearing and fixedly connected to one end of the screw rod (8); three guide rods (10) are fixedly mounted on the inner side of the kettle body (1), and the guide rods (10) penetrate the interior of the scraping ring (9); a bottom groove (11) is provided at the bottom of the scraping ring (9), and an inner groove (12) is provided on the inner side of the scraping ring (9).

4. The polycondensation reactor with cleaning function according to claim 1, characterized in that: A slanted block (14) is installed on the side of the triangular plate (15) close to the inner wall of the kettle body (1), and the slanted block (14) is located on the inner side of the arc groove (13); an inner scraper (16) is fixedly installed on the side of the triangular plate (15) away from the inner wall of the kettle body (1); a fixed column (18) is arranged on the top of the triangular plate (15), and the fixed column (18) is located on the inner side of the bottom groove (11); a fixed block (17) is fixedly installed on the side of the inner scraper (16) close to the inner wall of the kettle body (1), and the fixed block (17) is located on the inner side of the inner groove (12).

5. The polycondensation reactor with cleaning function according to claim 4, characterized in that: A water outlet assembly (1901) is provided on the inner side of the kettle body (1), and the water outlet assembly (1901) is located on the top of the scraping mechanism (701) and is configured to clean the inner side of the bottom wall of the kettle body (1) of the stirring rod (6).

6. The polycondensation reactor with cleaning function according to claim 5, characterized in that: The water outlet assembly (1901) comprises a square ring tube (19), and the square ring tube (19) is fixedly installed on the top of the scraper ring (9), an opening (20) is provided on the inner side of the square ring tube (19), and a water inlet pipe (21) is installed through the top of the square ring tube (19), and the water inlet pipe (21) passes through the top of the kettle body (1).

7. The polycondensation reactor with cleaning function according to claim 6, characterized in that: An inner ring (22) is slidably mounted on the inner side of the opening (20) via two sealed bearings, a plurality of nozzles (23) are installed through the inner side of the inner ring (22), and the nozzles (23) are obliquely downwardly directed toward the stirring rod (6), a short column (24) is fixedly mounted on the bottom of the inner ring (22), a column groove (25) is formed on the top of the inner scraper (16), and the short column (24) is located on the inner side of the column groove (25).

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