Stirring device of reaction kettle

Abstract

The invention relates to the technical field of reaction kettles, in particular to a reaction kettle stirring device which comprises a tank body, a guide cover is fixedly mounted on the upper side of the tank body, a tank cover is fixedly mounted on the upper side of the guide cover, a stirring mechanism is rotatably mounted on the lower side of the tank cover, and the stirring mechanism comprises a plurality of fixing rods. And the multiple fixing rods are fixedly mounted on the lower side of the tank cover, the surfaces of the multiple fixing rods are sleeved with driving sleeves, and multiple mounting openings are formed in the surfaces of the driving sleeves. A driving sleeve drives a stirring rod to rotate back and forth, the stirring rod drives a first-stage bevel gear to horizontally move, the driving sleeve rotates under the combined action of the first-stage bevel gear, when the stirring rod rotates, the surface of the stirring rod is scraped and cleaned through a scraping piece, and it is prevented that raw materials adhere to the stirring rod to affect normal reaction; raw materials are prevented from being adhered to the surface of the stirring rod, the stirring rod is cleaned in real time in the reaction process, and the normal reaction is prevented from being influenced by adhesion of the materials.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, in particular to a reactor stirring device. Background Art

[0002] The reactor is one of the main equipment used for material reaction in industrial production. It is widely used in chemical, pharmaceutical, food, petroleum, environmental protection and other fields. It is a comprehensive reaction device that can realize multiple functions such as material mixing, heating, cooling, reaction, stirring and substance transfer.

[0003] Chinese utility model patent CN221965329U discloses a reactor stirring device, comprising a reactor, a stirring mechanism for stirring materials arranged inside the reactor, and an adjusting mechanism connected above the stirring mechanism for adjusting the position of the stirring mechanism; a cover for sealing and separating the reactor is installed on the top of the reactor, a gas filling tank for inflating the stirring mechanism is connected to one side of the adjusting mechanism, and a connecting hose for gas transmission is arranged at the connection between the gas filling tank and the adjusting mechanism. The utility model drives the rotating shaft to rotate through a driving motor, and drives multiple groups of stirring plates and scraping plates arranged on both sides of the rotating shaft to rotate through the rotating shaft, so as to fully stir the polyurethane curing agent material inside the reactor, increase the stirring effect, and reduce the adhesion and retention of materials on the inner wall of the reactor.

[0004] However, the device still has some problems. Among them, the rotating shaft drives multiple groups of stirring plates and scraper plates arranged on both sides of the rotating shaft to rotate, so as to fully stir the polyurethane curing agent material inside the reactor, thereby increasing the stirring effect and reducing the adhesion and retention of the material on the inner wall of the reactor. In actual use, when the reactor is stirring the reaction, it may be easy to adhere to the surface of the stirring roller or stirring paddle during the stirring process because the stirring material has a high viscosity. The adhered material may reduce the effective reaction area, affect the heat and mass transfer efficiency, and lead to a decrease in the reaction rate in the reactor. Summary of the invention

[0005] The object of the present invention is to provide a reactor stirring device to solve the problem raised in the above-mentioned background technology that when the reactor is performing a stirring reaction, it may be easy to adhere to the surface of the stirring roller or stirring paddle during the stirring process because the stirring material has a high viscosity. The adhered material may reduce the effective reaction area, affect the heat and mass transfer efficiency, and cause the reaction rate in the reactor to decrease.

[0006] The technical solution of the present invention is: a stirring device for a reaction kettle, comprising a tank body, a guide cover is fixedly installed on the upper side of the tank body, a tank cover is fixedly installed on the upper side of the guide cover, and a stirring mechanism is rotatably installed on the lower side of the tank cover; The stirring mechanism comprises a plurality of fixed rods, wherein the plurality of fixed rods are fixedly mounted on the lower side of the tank cover, the surfaces of the plurality of fixed rods are sleeved with drive sleeves, the surface of the drive sleeves is provided with a plurality of mounting openings, the plurality of mounting openings are fixedly mounted with sealing sleeves, the sealing sleeves are rotatably mounted with stirring rods, one end of the sealing sleeves is fixedly mounted with a cleaning assembly, and the fixed rods are rotatably mounted with a drive assembly; The cleaning component includes a scraper blade, which is fixedly installed on one side of the sealing sleeve. The surface of the fixed rod is provided with a plurality of annular grooves, and a primary bevel gear is fixedly installed in each of the plurality of annular grooves. A secondary bevel gear is fixedly installed at one end of the stirring rod, and the primary bevel gear is meshed with the secondary bevel gear. The inner wall of the tank body is provided with a plurality of slide grooves, and a wall scraping unit is slidably installed in each of the plurality of slide grooves.

[0007] Furthermore, the scraping unit includes a limit block, and a plurality of the limit blocks are slidably installed in a plurality of slide grooves accordingly. A cleaning scraper is fixedly installed on one side of the limit blocks, and the plurality of cleaning scrapers are attached to the inner wall of the tank body. A connecting rod is fixedly installed on one side of the cleaning scraper, and a lifting scraper ring is slidably installed on the surface of the driving sleeve, and the other end of the connecting rod is fixedly installed on the lifting scraper ring.

[0008] Furthermore, the wall scraping unit also includes a limiting groove opened on the surface of the driving sleeve, and two limiting balls are fixedly installed on the inner wall of the lifting scraper ring, and the two limiting balls are both slidably installed in the limiting groove.

[0009] Furthermore, the driving assembly includes a plurality of sub-gears, and the plurality of sub-gears are rotatably mounted on the surfaces of a plurality of fixed rods. The top end of the driving sleeve is fixedly connected to the lower side of the sub-gears. A driving hole is provided on the upper side of the tank cover, and a driving tube is rotatably mounted in the driving hole. A main gear is fixedly mounted on the driving tube, and the main gear is meshed with a plurality of sub-gears. A heat exchange assembly is rotatably mounted on the inner wall of the driving tube.

[0010] Furthermore, the driving assembly also includes a primary gear, which is fixedly mounted on the surface of the driving tube, a swing arm is rotatably mounted on the upper side of the tank cover, a partial gear meshing with the primary gear is fixedly mounted on one end of the swing arm, a secondary gear is rotatably mounted on the upper side of the tank cover, a driving block is fixedly mounted on the upper side of the secondary gear, the driving block is eccentrically arranged with the secondary gear, a long hole is opened on the upper side of the swing arm, the driving block is slidably mounted in the long hole, a motor bracket is fixedly mounted on the upper side of the tank cover, a driving motor is fixedly mounted on the motor bracket, a third-stage gear is fixedly mounted on the output end of the driving motor, and the third-stage gear meshes with the second-stage gear.

[0011] Furthermore, the heat exchange assembly includes a heat exchange tube, which is rotatably mounted on the inner wall of the driving tube, a spacer ring is fixedly mounted on the inner wall of the heat exchange tube, an inner tube is fixedly mounted inside the spacer ring, and a liquid supply unit is slidably mounted on the inner wall of the heat exchange tube.

[0012] Furthermore, the liquid supply unit includes a piston, which is slidably installed in the heat exchange tube, a pull rod is fixedly installed on one side of the piston, a connecting frame is fixedly installed on the other end of the pull rod, and the other end of the connecting frame is fixedly installed on the lifting scraper ring, a plurality of primary delivery holes are opened on the surface of the spacer ring, and a secondary one-way valve is fixedly installed in each of the plurality of primary delivery holes, and a secondary delivery hole is opened at the bottom end of the inner tube, and a primary one-way valve is fixedly installed in each of the secondary delivery holes.

[0013] Furthermore, the liquid supply unit also includes an external connection box, a fixing bracket is fixedly installed on the upper side of the tank cover, the external connection box is installed on one end of the fixing bracket, a mounting port is opened on one side of the external connection box, one end of the inner tube is fixedly installed in the mounting port, an external interface is opened on the upper side of the external connection box, and an injection pipe is fixedly installed in the external interface.

[0014] Furthermore, a plurality of fixing frames are fixedly mounted on the upper side of the connecting frame, a plurality of annular scrapers are fixedly mounted on the surface of the fixing frames, and the plurality of annular scrapers are attached to the surface of the heat exchange tube.

[0015] Furthermore, a base is fixedly installed on the lower side of the tank body, a discharge port is opened on the lower side of the base, a discharge pipe is fixedly installed in the discharge port, a valve is installed on the discharge pipe, a feed port is opened on the surface of the guide cover, a feed nozzle is fixedly installed in the feed port, and a plurality of supporting feet are fixedly installed on the lower side of the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the stirring rod to rotate back and forth through the driving sleeve, and the stirring rod drives the primary bevel gear to move horizontally, and the driving sleeve is rotated under the joint action of the primary bevel gear. When the stirring rod rotates, the surface of the stirring rod is scraped and cleaned by the scraper to prevent the raw materials from sticking to the stirring rod and affecting the normal reaction. At the same time, when the driving sleeve rotates, the limiting groove and limiting ball on the surface of the driving sleeve and the joint limiting action of the connecting rod and the cleaning scraper slidably installed on the inner wall of the tank body drive the lifting ring to reciprocate up and down, and drive the lifting scraper ring to scrape the surface of the driving sleeve to prevent the raw materials from sticking to the surface, so as to achieve real-time cleaning of the stirring rod during the reaction process and prevent the material from sticking to the normal reaction.

[0017] 2. In the present invention, when scraping and cleaning is performed by means of the lifting scraper ring, the connecting rod drives the cleaning scraper to move, and the cleaning scraper scrapes and cleans the inner wall of the tank body to prevent the raw materials from adhering to the inner wall of the tank body, and drives the connecting frame to lift and lower back and forth through the lifting hanging ring, and the connecting frame drives the three fixed frames to move, and the three fixed frames drive the three annular scrapers on the surface to move, so as to scrape and clean the surface of the heat exchange tube to prevent the raw materials from adhering to its surface and affecting the heat exchange effect.

[0018] 3. In the present invention, the three lifting scraper rings at the bottom of the tank body drive the pull rod to move back and forth through the connecting frame. When the pull rod descends, the pull rod drives the piston to move downward to form a negative pressure environment in the heat exchange tube. At this time, the heat exchange tube draws the external heat exchange fluid into the heat exchange tube through the injection tube, and contacts with the raw material through the heat exchange tube to exchange heat with the raw material in the reactor. When the pull rod drives the piston to move upward, the secondary one-way valve blocks the heat exchange fluid from flowing back into the heat exchange tube, and injects the heat exchange fluid to be replaced into the inner tube through the primary one-way valve and discharges it through the other end of the inner tube, so as to perform real-time dynamic circulation of the heat exchange fluid, maintain its heat exchange efficiency, maintain the constant temperature during the reaction process, and prevent the problem of adhesion caused by overheating or overcooling of the raw materials due to heat generation or heat absorption during the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cutaway structure of the present invention; Figure 3 It is a schematic diagram of the structure of the driving component part of the present invention; Figure 4 It is a schematic diagram of the stirring rod and its related structures of the present invention; Figure 5 It is a schematic diagram of the structure of the wall scraping unit in the present invention; Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of the A area in the middle; Figure 7 It is a schematic diagram of the cross-section structure of the driving sleeve in the present invention; Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the middle B area; Fig. 9 It is a schematic diagram of the cross-sectional structure of the heat exchange tube in the present invention; Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure of the C area in the middle.

[0020] Description of the accompanying drawings: 1, tank body; 2, guide cover; 3, tank cover; 4, feed nozzle; 5, base; 6, support foot; 7, feed pipe; 8, valve; 9, heat exchange tube; 10, drive sleeve; 11, secondary gear; 12, main gear; 13, drive pipe; 14, primary gear; 15, motor bracket; 16, drive motor; 17, third gear; 18, second gear; 19, drive block; 20, sealing sleeve; 21, stirring rod; 22, lifting scraper ring; 23 , limit ball; 24, limit groove; 25, connecting rod; 26, cleaning scraper; 27, limit block; 28, fixing rod; 29, primary bevel gear; 30, secondary bevel gear; 31, connecting frame; 32, inner tube; 33, external box; 34, injection pipe; 35, fixing frame; 36, annular scraper; 37, pull rod; 38, piston; 39, primary one-way valve; 40, secondary one-way valve; 41, fixing bracket; 42, scraper; 43, swing rod; 44, spacer ring. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0022] Figure 1 to Figure 10 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1 to Figure 10 The present invention is further described.

[0023] like Figure 1 to Figure 10 As shown, a reactor stirring device comprises a tank body 1, a guide cover 2 is fixedly mounted on the upper side of the tank body 1, a tank cover 3 is fixedly mounted on the upper side of the guide cover 2, a stirring mechanism is rotatably mounted on the lower side of the tank cover 3, and the stirring mechanism is arranged in the tank body 1.

[0024] The stirring mechanism includes a plurality of fixed rods 28, which are fixedly installed on the lower side of the tank cover 3. A driving sleeve 10 is sleeved on the surface of the plurality of fixed rods 28. A plurality of mounting openings are provided on the surface of the driving sleeve 10. A sealing sleeve 20 is fixedly installed in the plurality of mounting openings. A stirring rod 21 is rotatably installed in the sealing sleeve 20. A cleaning component is fixedly installed at one end of the sealing sleeve 20, and a driving component is rotatably installed on the fixed rod 28.

[0025] The cleaning component includes a scraper 42, which is fixedly installed on one side of the sealing sleeve 20. A plurality of annular grooves are provided on the surface of the fixed rod 28, and a primary bevel gear 29 is fixedly installed in each of the plurality of annular grooves. A secondary bevel gear 30 is fixedly installed at one end of the stirring rod 21, and the primary bevel gear 29 is meshed with the secondary bevel gear 30. A plurality of slide grooves are provided on the inner wall of the tank body 1, and a wall scraping unit is slidably installed in each of the plurality of slide grooves.

[0026] By means of the above structure, the guide cover 2 installed on the upper side of the tank body 1 provides a running space for the driving component to prevent the raw materials from sticking to the driving component and affecting normal use. Three fixing rods 28 are fixedly installed on the lower side of the tank cover 3. A sealing sleeve 20 is correspondingly sleeved on the outside of each fixing rod 28. Six installation openings are opened on the surface of each sealing sleeve 20, which are opened horizontally in groups of two. A sealing sleeve 20 is installed in each installation opening. The sealing sleeve 20 can seal the area between the driving sleeve 10 and the fixing rod 28 to prevent the raw materials from flowing back to the inside during the stirring process. A scraper 42 is correspondingly installed on one side of each sealing sleeve 20. The scraper 42 is located below the stirring rod 21 and is attached to the surface of the stirring rod 21. When the stirring rod 21 rotates, the scraper 42 will scrape off the raw materials adhered to the surface of the stirring rod 21. The lower side of the scraper 42 is set as an oblique section, which can greatly reduce the adhesion of the raw materials.

[0027] Furthermore, the scraping unit includes a limit block 27, and multiple limit blocks 27 are correspondingly slidably installed in multiple slide grooves. A cleaning scraper 26 is fixedly installed on one side of the multiple limit blocks 27. The multiple cleaning scrapers 26 are all attached to the inner wall of the tank body 1. A connecting rod 25 is fixedly installed on one side of the cleaning scraper 26. A lifting scraper ring 22 is slidably installed on the surface of the driving sleeve 10, and the other end of the connecting rod 25 is fixedly installed on the lifting scraper ring 22.

[0028] By means of the above structure, nine slide grooves are opened on the inner wall of the tank body 1, and a limit block 27 is slidably installed in each slide groove. A cleaning scraper 26 is installed on the side corresponding to each limit block 27. The three longitudinal cleaning scrapers 26 are installed as a group at equal intervals, and are connected to the lifting scraper ring 22 through the corresponding connecting rod 25. The lifting scraper ring 22 is slidably installed outside the driving sleeve 10. Three lifting scraper rings 22 are installed on each driving sleeve 10. When the lifting scraper ring 22 is lifted and lowered, it drives the cleaning scraper 26 to clean the inner wall of the tank body 1. The cleaning area of ​​a group of cleaning scrapers 26 is exactly the height of the inner wall of the tank body 1. The three groups of cleaning scrapers 26 can just scrape and clean the entire inner wall of the tank body 1.

[0029] Furthermore, the wall scraping unit also includes a limiting groove 24 opened on the surface of the driving sleeve 10 , and two limiting balls 23 are fixedly installed on the inner wall of the lifting scraper ring 22 , and the two limiting balls 23 are both slidably installed in the limiting groove 24 .

[0030] By means of the above structure, three equally spaced limiting grooves 24 are provided on the surface of each driving sleeve 10, corresponding to the number of the lifting scraper rings 22. When the driving sleeve 10 rotates, the limiting grooves 24 squeeze the two limiting balls 23 symmetrically mounted on the inner wall of the lifting scraper ring 22, and the squeezing will drive the lifting scraper ring 22 to reciprocate. The limiting grooves 24 can be spiral.

[0031] Furthermore, the driving assembly includes a plurality of sub-gears 11, and the plurality of sub-gears 11 are rotatably mounted on the surfaces of the plurality of fixed rods 28. The top end of the driving sleeve 10 is fixedly connected to the sub-gears 11. A driving hole is provided on the upper side of the tank cover 3, and a driving tube 13 is rotatably mounted in the driving hole. A main gear 12 is fixedly mounted on the driving tube 13, and the main gear 12 is meshed with the plurality of sub-gears 11. A heat exchange assembly is rotatably mounted on the inner wall of the driving tube 13.

[0032] By means of the above structure, three sub-gears 11 are provided and respectively drive the corresponding three drive sleeves 10. The radius of the main gear 12 is larger than that of the sub-gear 11. When the main gear 12 rotates to the maximum angle once, the sub-gear 11 will rotate one circle, causing the drive sleeve 10 to rotate one circle. At this time, the lifting scraper ring 22 will also go through a reciprocating cycle, and the primary bevel gear 29 will also drive the stirring rod 21 to rotate one circle, thereby ensuring that the scraper 42 can completely scrape off the material sticking to the stirring rod 21.

[0033] Furthermore, the driving assembly also includes a primary gear 14, which is fixedly mounted on the surface of the driving tube 13. A swing rod 43 is rotatably mounted on the upper side of the tank cover 3, and a partial gear meshing with the primary gear 14 is fixedly mounted on one end of the swing rod 43. A secondary gear 18 is rotatably mounted on the upper side of the tank cover 3, and a driving block 19 is fixedly mounted on the upper side of the secondary gear 18. The driving block 19 is eccentrically arranged with the secondary gear 18, and a long hole is opened on the swing rod 43. The driving block 19 is slidably mounted in the long hole. A motor bracket 15 is fixedly mounted on the upper side of the tank cover 3, and a driving motor 16 is fixedly mounted on the motor bracket 15. A third-stage gear 17 is fixedly mounted on the output end of the driving motor 16, and the third-stage gear 17 meshes with the secondary gear 18.

[0034] With the above structure, the swing rod 43 is composed of a swing rod and a partial gear. One side of the half gear is meshed with the primary gear 14. The surface of the swing rod is slidingly connected to the driving block 19 through a long hole. The area where the swing rod is connected to the half gear is rotatably connected to the upper side of the tank cover 3 through a rotating shaft. When the driving block 19 moves, it will drive the swing rod 43 to swing through the long hole, thereby causing the primary bevel gear 29 to reciprocate.

[0035] Furthermore, the heat exchange assembly includes a heat exchange tube 9, which is rotatably mounted on the inner wall of the driving tube 13, a spacer ring 44 is fixedly mounted on the inner wall of the heat exchange tube 9, an inner tube 32 is fixedly mounted inside the spacer ring 44, and a liquid supply unit is slidably mounted on the inner wall of the heat exchange tube 9.

[0036] With the above structure, the inner wall of the inner tube 32 is provided with an insulation layer to prevent heat exchange between the inner tube 32 and the heat exchange tube 9, which would cause a decrease in heat exchange efficiency. A space is created between the inner tube 32 and the heat exchange tube 9 through the spacer ring 44, and the space is used to inject heat exchange liquid to exchange heat in the reactor.

[0037] Furthermore, the liquid supply unit includes a piston 38, which is slidably installed in the heat exchange tube 9, a pull rod 37 is fixedly installed on one side of the piston 38, a connecting frame 31 is fixedly installed on the other end of the pull rod 37, and the other end of the connecting frame 31 is fixedly installed on the lifting scraper ring 22, a plurality of primary delivery holes are opened on the surface of the spacer ring 44, and a secondary one-way valve 40 is fixedly installed in each of the plurality of primary delivery holes, a secondary delivery hole is opened at the bottom end of the inner tube 32, and a primary one-way valve 39 is fixedly installed in each of the secondary delivery holes.

[0038] By means of the above structure, the direction of the secondary one-way valve 40 is from the top of the heat exchange tube 9 to the piston 38 area, and the direction of the primary one-way valve 39 is from the piston 38 to the top of the inner tube 32. When the piston 38 moves downward, a negative pressure environment is formed in the heat exchange tube 9. At this time, the heat exchange tube 9 draws the external heat exchange fluid into the heat exchange tube 9 through the injection tube 34, and contacts with the raw materials through the heat exchange tube 9 to exchange heat with the raw materials in the reactor. When the piston 38 moves upward, the secondary one-way valve 40 prevents the heat exchange fluid from flowing back into the heat exchange tube 9, and injects the heat exchange fluid to be replaced into the inner tube 32 through the primary one-way valve 39, and discharges it through the other end of the inner tube 32, so as to perform real-time dynamic circulation of the heat exchange fluid.

[0039] Furthermore, the liquid supply unit also includes an external connection box 33, a fixing bracket 41 is fixedly installed on the upper side of the tank cover 3, the external connection box 33 is installed on one end of the fixing bracket 41, a mounting port is opened on one side of the external connection box 33, one end of the inner tube 32 is fixedly installed in the mounting port, an external interface is opened on the upper side of the external connection box 33, and an injection pipe 34 is fixedly installed in the external interface.

[0040] With the above structure, the fixing bracket 41 can fix the external box 33, and then fix the entire heat exchange component. The heat exchange liquid is injected into the injection pipe 34 and can directly enter the heat exchange tube 9 for heat exchange, and then discharged through the inner tube 32 after the heat exchange is completed.

[0041] Furthermore, a plurality of fixing frames 35 are fixedly mounted on the upper side of the connecting frame 31 , and a plurality of annular scrapers 36 are fixedly mounted on the surface of the fixing frames 35 . The plurality of annular scrapers 36 are attached to the surface of the heat exchange tube 9 .

[0042] By means of the above structure, three fixing frames 35 are installed on the connecting frame 31, and three annular scrapers 36 are installed on the surfaces of the three fixing frames 35. The annular scrapers 36 are attached to the surface of the heat exchange tube 9. When the heat exchange tube 9 is performing heat exchange, the annular scrapers 36 are driven to reciprocate and lift to scrape the surface of the heat exchange tube 9 to prevent the material from sticking and affecting the heat exchange.

[0043] Furthermore, a base 5 is fixedly installed on the lower side of the tank body 1, a discharge port is opened on the lower side of the base 5, a discharge pipe 7 is fixedly installed in the discharge port, a valve 8 is installed on the discharge pipe 7, a feed port is opened on the surface of the guide cover 2, a feed nozzle 4 is fixedly installed in the feed port, and a plurality of supporting legs 6 are fixedly installed on the lower side of the base 5.

[0044] With the above structure, when feeding materials, it is necessary to pay attention that the liquid level of the material cannot be higher than the lowest position of the feed nozzle 4. A guiding slope is provided on the upper side of the base 5 to facilitate the discharge of the material. The valve 8 installed on the discharge pipe 7 is a manual valve 8.

[0045] Working principle: When the device is in use, first manually open the feed nozzle 4, add the raw materials to be processed into the tank body 1 and keep the liquid level at the same level or lower than the lowest position of the feed nozzle 4, close the feed nozzle 4 to keep the tank sealed, and then manually connect the external pipe of the heat exchange liquid required for heat exchange to the injection pipe 34, and connect the top of the inner pipe 32 to the discharge pipe, then start the drive motor 16, the output end of the drive motor 16 drives the three-stage gear 17 to rotate, the three-stage gear 17 drives the two-stage gear 18 to rotate, the two-stage gear 18 drives the drive block 19 to move, the drive block 19 drives the swing rod 43 to swing through the long hole, the swing rod 43 drives the first-stage gear 14 to reciprocate, the first-stage gear 14 drives the drive tube 13 to rotate, the drive tube 13 drives the main gear 12 to rotate, the main gear 12 drives multiple sub-gears 11 to rotate, the multiple sub-gears 11 drive the corresponding drive sleeves 10 to rotate, and the multiple drive sleeves 10 drive the corresponding stirring rods 21 to reciprocate to stir the materials in the reactor.

[0046] In the process of the driving sleeve 10 driving the stirring rod 21 to reciprocate, the stirring rod 21 rotates under the joint action of the secondary bevel gear 30 and the primary bevel gear 29 at one end thereof. When the stirring rod 21 rotates, the surface of the stirring rod 21 is scraped and cleaned by the scraper 42 to prevent the raw materials from sticking to the stirring rod 21 and affecting the normal reaction. At the same time, when the driving sleeve 10 rotates, through the cooperation of the limiting groove 24 and the limiting ball 23 on its surface, and through the joint limiting action of the connecting rod 25 and the cleaning scraper 26 slidably installed on the inner wall of the tank body 1, the lifting scraper ring 22 is driven to reciprocate up and down to scrape the surface of the driving sleeve 10 to prevent the raw materials from sticking to its surface. When the lifting scraper ring 22 is scraping and cleaning, the connecting rod 25 drives the cleaning scraper 26 to move, and the cleaning scraper 26 scrapes and cleans the inner wall of the tank body 1 to prevent the raw materials from sticking to the inner wall of the tank body 1, so as to achieve dynamic and real-time cleaning of the stirring rod 21 and the inner wall of the tank body 1 during the reaction process to prevent the raw materials from sticking.

[0047] During the reaction, the three lifting scraper rings 22 at the bottom of the tank body 1 drive the pull rod 37 to move up and down through the connecting frame 31. When the pull rod 37 descends, the pull rod 37 drives the piston 38 to move downward to form a negative pressure environment in the heat exchange tube 9. At this time, the heat exchange tube 9 draws the external heat exchange liquid into the heat exchange tube 9 through the injection tube 34, and contacts with the raw materials through the heat exchange tube 9 to exchange heat with the raw materials in the reactor, maintain the constant temperature during the reaction process, and prevent the problem of adhesion caused by overheating or overcooling of the raw materials due to heat generation or absorption during the reaction. When the pull rod 37 drives the piston 38 to move upward, the secondary one-way valve 40 blocks the heat exchange fluid from flowing back into the heat exchange tube 9, and injects the heat exchange fluid that needs to be replaced into the inner tube 32 through the primary one-way valve 39, and discharges it through the other end of the inner tube 32, so as to perform real-time dynamic circulation of the heat exchange fluid and maintain its heat exchange efficiency. When the heat exchange tube 9 is working, the connecting frame 31 drives the three fixing frames 35 to move, and the three fixing frames 35 drive the three annular scrapers 36 on the surface to move, so as to scrape and clean the surface of the heat exchange tube 9 to prevent the raw materials from adhering to its surface and affecting the heat exchange effect.

[0048] When the reaction is completed, the collecting dish is placed under the discharge pipe 7, and then the valve 8 is manually opened to discharge the raw materials that have completed the reaction in the reactor. When they are completely discharged, the driving motor 16 is turned off to complete the stirring reaction of the raw materials.

[0049] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A stirring device for a reaction kettle, comprising a tank body (1), characterized in that: A guide cover (2) is fixedly mounted on the upper side of the tank body (1), a tank cover (3) is fixedly mounted on the upper side of the guide cover (2), and a stirring mechanism is rotatably mounted on the lower side of the tank cover (3); The stirring mechanism comprises a plurality of fixed rods (28), the plurality of fixed rods (28) being fixedly mounted on the lower side of the tank cover (3), the surfaces of the plurality of fixed rods (28) being sleeved with a driving sleeve (10), the surface of the driving sleeve (10) being provided with a plurality of mounting openings, the plurality of mounting openings being fixedly mounted with a sealing sleeve (20), the sealing sleeve (20) being rotatably mounted with a stirring rod (21), one end of the sealing sleeve (20) being fixedly mounted with a cleaning component, and the fixed rod (28) being rotatably mounted with a driving component; The cleaning assembly comprises a scraper blade (42), the scraper blade (42) being fixedly mounted on one side of the sealing sleeve (20), a plurality of annular grooves being provided on the surface of the fixing rod (28), a primary bevel gear (29) being fixedly mounted in each of the plurality of annular grooves, a secondary bevel gear (30) being fixedly mounted on one end of the stirring rod (21), the primary bevel gear (29) being meshed with the secondary bevel gear (30), and a plurality of sliding grooves being provided on the inner wall of the tank body (1), a wall scraping unit being slidably mounted in each of the plurality of sliding grooves.

2. A stirring device for a reaction kettle according to claim 1, characterized in that: The wall scraping unit comprises a limit block (27), wherein a plurality of the limit blocks (27) are slidably mounted in a plurality of slide grooves, a cleaning scraper (26) is fixedly mounted on one side of the plurality of limit blocks (27), and the plurality of cleaning scrapers (26) are attached to the inner wall of the tank body (1), a connecting rod (25) is fixedly mounted on one side of the cleaning scraper (26), a lifting scraper ring (22) is slidably mounted on the surface of the driving sleeve (10), and the other end of the connecting rod (25) is fixedly mounted on the lifting scraper ring (22).

3. A stirring device for a reaction kettle according to claim 2, characterized in that: The wall scraping unit further comprises a limiting groove (24) formed on the surface of the driving sleeve (10), and two limiting balls (23) are fixedly mounted on the inner wall of the lifting scraper ring (22), and the two limiting balls (23) are both slidably mounted in the limiting groove (24).

4. A stirring device for a reaction kettle according to claim 1, characterized in that: The driving assembly comprises a plurality of pinion gears (11), the plurality of pinion gears (11) being rotatably mounted on the surfaces of a plurality of fixing rods (28) in correspondence, the top end of the driving sleeve (10) being fixedly connected to the bottom side of the pinion gears (11), the top side of the tank cover (3) being provided with a driving hole, a driving tube (13) being rotatably mounted in the driving hole, a main gear (12) being fixedly mounted on the driving tube (13), the main gear (12) being meshed with the plurality of pinion gears (11), and a heat exchange assembly being rotatably mounted on the inner wall of the driving tube (13).

5. A stirring device for a reaction kettle according to claim 4, characterized in that: The driving assembly further comprises a primary gear (14), the primary gear (14) being fixedly mounted on the surface of the driving tube (13); a swing rod (43) being rotatably mounted on the upper side of the tank cover (3); a partial gear meshing with the primary gear (14) being fixedly mounted on one end of the swing rod (43); a secondary gear (18) being rotatably mounted on the upper side of the tank cover (3); a driving block (19) being fixedly mounted on the upper side of the secondary gear (18); the driving block (19) being eccentrically arranged with the secondary gear (18); a long hole being opened on the upper side of the swing rod (43); the driving block (19) being slidably mounted in the long hole; a motor bracket (15) being fixedly mounted on the upper side of the tank cover (3); a driving motor (16) being fixedly mounted on the motor bracket (15); a third-stage gear (17) being fixedly mounted on the output end of the driving motor (16); the third-stage gear (17) being meshing with the second-stage gear (18).

6. A stirring device for a reaction kettle according to claim 4, characterized in that: The heat exchange assembly comprises a heat exchange tube (9), the heat exchange tube (9) being rotatably mounted on the inner wall of a driving tube (13), a spacer ring (44) being fixedly mounted on the inner wall of the heat exchange tube (9), an inner tube (32) being fixedly mounted inside the spacer ring (44), and a liquid supply unit being slidably mounted on the inner wall of the heat exchange tube (9).

7. A stirring device for a reaction kettle according to claim 6, characterized in that: The liquid supply unit comprises a piston (38), the piston (38) is slidably mounted in the heat exchange tube (9), a pull rod (37) is fixedly mounted on one side of the piston (38), a connecting frame (31) is fixedly mounted on the other end of the pull rod (37), the other end of the connecting frame (31) is fixedly mounted on the lifting scraper ring (22), a plurality of primary delivery holes are provided on the surface of the spacer ring (44), a secondary check valve (40) is fixedly mounted in each of the plurality of primary delivery holes, a secondary delivery hole is provided at the bottom end of the inner tube (32), a primary check valve (39) is fixedly mounted in each of the secondary delivery holes.

8. A stirring device for a reaction kettle according to claim 7, characterized in that: The liquid supply unit further comprises an external connection box (33), a fixing bracket (41) is fixedly mounted on the upper side of the tank cover (3), the external connection box (33) is mounted on one end of the fixing bracket (41), a mounting opening is provided on one side of the external connection box (33), one end of the inner tube (32) is fixedly mounted in the mounting opening, an external interface is provided on the upper side of the external connection box (33), and an injection tube (34) is fixedly mounted in the external interface.

9. A stirring device for a reaction kettle according to claim 7, characterized in that: A plurality of fixing frames (35) are fixedly mounted on the upper side of the connecting frame (31), a plurality of annular scrapers (36) are fixedly mounted on the surface of the fixing frame (35), and the plurality of annular scrapers (36) are attached to the surface of the heat exchange tube (9).

10. A stirring device for a reaction kettle according to claim 1, characterized in that: A base (5) is fixedly mounted on the lower side of the tank body (1), a feed opening is provided on the lower side of the base (5), a feed pipe (7) is fixedly mounted in the feed opening, a valve (8) is mounted on the feed pipe (7), a feed inlet is provided on the surface of the guide cover (2), a feed nozzle (4) is fixedly mounted in the feed inlet, and a plurality of support legs (6) are fixedly mounted on the lower side of the base (5).

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