A kind of esterification reaction kettle

Abstract

The utility model belongs to the technical field of reactors, and particularly relates to an esterification reactor, comprising: a reactor body, wherein a feed pipe is arranged on the top of the reactor body, and a discharge pipe is arranged on the bottom; a stirring shaft, wherein the stirring shaft is rotatably arranged in the reactor body, and a plurality of stirring rods are evenly arranged on the stirring shaft in a circumferential direction; a cleaning assembly, wherein the cleaning assembly comprises: a side plate, wherein a scraper pad is arranged on the side of the side plate close to the inner wall of the reactor body, and a slide bar is arranged on the side away from the inner wall of the reactor body, a connecting rod, wherein the connecting rod is hollow, and one end is connected to the stirring shaft, and the other end is slidably connected to the slide bar, a cavity, wherein the cavity is arranged inside the stirring shaft and is connected to the connecting rod, and a transmission structure, wherein the transmission structure is arranged in the cavity and the connecting rod, and is connected to the end face of the slide bar; wherein a bracket is arranged above the reactor body, and a motor is arranged on the bracket, and the motor conveying shaft is connected to the stirring shaft. The effect of being able to adjust the distance between the scraper pad and the reactor wall, thereby extending its service life is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of reaction kettles, in particular to an esterification reaction kettle. Background Art

[0002] An esterification kettle is a device used for esterification reaction, usually used in the process of producing lipid compounds; for example, when producing tributyl phosphate, phosphorus oxychloride and butanol in a certain molar ratio are mixed and then an esterification reaction occurs in the esterification kettle.

[0003] Chinese utility model patent CN220589955U discloses an esterification reactor with a catalyst that can react quickly, including a reactor body, a cleaning assembly fixedly installed on the right side of the reactor body, and a sealing assembly fixedly installed on the front side of the top of the reactor body. In the above scheme, after the reaction is completed, the driving device drives the driving shaft to rotate, so that the gear transmission ring rotates, so that the rotating plate and the ring rotate on the reactor body, so that the side rod, the scraper pad, and the scraper rod are simultaneously attached to the inner surface of the reactor body and rotate in a circle, and the side wall and the bottom wall inside the reactor body are scraped and cleaned, and during the reaction, it can be rotated and stirred synchronously. Using the above structure, the inner wall of the reactor body can be automatically scraped and cleaned to prevent the organic compound liquid from remaining in the reactor body, reduce the labor intensity of the staff, and can be stirred synchronously when mixing the catalyst, so that the catalyst is fully in contact with the liquid, and the catalyst catalytic reaction is accelerated.

[0004] However, when the cleaning component cleans the inner wall of the kettle body, since the side rod and the rotating plate are fixedly arranged, the scraper pad is always in contact with the inner wall of the kettle body during the esterification process, thereby reducing the service life of the cleaning component. Utility Model Content

[0005] The purpose of the utility model is to provide an esterification reaction kettle in view of the above-mentioned technical problems, so as to achieve the effect of being able to adjust the distance between the cleaning structure and the inner wall of the kettle body, thereby extending its service life.

[0006] In view of this, the utility model provides an esterification reaction kettle, characterized in that:

[0007] A kettle body, wherein a feed pipe is arranged at the top of the kettle body, and a discharge pipe is arranged at the bottom of the kettle body;

[0008] A stirring shaft, the stirring shaft is rotatably arranged in the kettle body, and a plurality of stirring rods are evenly distributed circumferentially on the stirring shaft;

[0009] A cleaning component, the cleaning component comprising:

[0010] The side plate is provided with a scraper pad on the side close to the inner wall of the kettle body, and a slide bar on the side away from the inner wall of the kettle body.

[0011] The connecting rod is hollow and has one end connected to the stirring shaft and the other end connected to the sliding rod.

[0012] A cavity, wherein the cavity is arranged inside the stirring shaft and communicated with the connecting rod,

[0013] A transmission structure, which is arranged in the cavity and the connecting rod and connected to the end surface of the sliding rod;

[0014] A bracket is arranged above the kettle body, and a motor is arranged on the bracket, and the motor conveying shaft is connected with the stirring shaft.

[0015] In this technical solution, the material is put into the kettle through the feed pipe, and the stirring rod is driven by the motor to rotate, so that the stirring rod stirs the material in the kettle to make it fully react, and the position of the sliding rod in the connecting rod is controlled by controlling the transmission structure, thereby controlling the position between the side plate and the scraper pad, so as to avoid the scraper pad always contacting the inner wall of the kettle body and accelerating the wear of the scraper pad. The adjustable cleaning component is conducive to improving the service life of the device.

[0016] In the above technical solution, further, the transmission structure includes:

[0017] A transmission rod, wherein the transmission rod is arranged in the cavity and the axis thereof coincides with the axis of the stirring shaft;

[0018] A first bevel gear, which is sleeved on the transmission rod and meshed with a second bevel gear on the side;

[0019] A rotating shaft, which is arranged on the back of the second bevel gear and passes through the stirring shaft and extends to the outside of the stirring shaft;

[0020] A handle, wherein the handle is connected to the rotating shaft in a detachable manner;

[0021] A third bevel gear, which is sleeved on the transmission rod, and a fourth bevel gear is symmetrically arranged on the side thereof, and the third bevel gear is meshed with the fourth bevel gear;

[0022] A screw rod, which is rotatably arranged in the connecting rod and has one end connected to the fourth bevel gear;

[0023] A transmission groove, which is arranged on the end face of the slide rod, and an internal thread is arranged on the inner wall of the transmission groove, and is threadedly connected to the lead screw;

[0024] A support block is fixedly arranged in the connecting rod to support the screw rod.

[0025] In this technical solution, by turning the handle, the screw rod is driven to rotate through the cooperation among the rotating shaft, the second bevel gear, the transmission rod, the third bevel gear, and the fourth bevel gear. Through the cooperation between the screw rod and the sliding rod, the sliding rod can be driven to move back and forth in the connecting rod, thereby achieving the effect of adjusting the distance between the scraper pad and the inner wall of the kettle body.

[0026] In the above technical solution, further, a limiting structure is provided between the rotating shaft and the outer wall of the stirring shaft, and the limiting structure includes:

[0027] A fixed sleeve, wherein the fixed sleeve is arranged on the rotating shaft and is rotatably connected to the rotating shaft;

[0028] The limiting hole passes through the fixing sleeve and the rotating shaft and is used for inserting the limiting pin.

[0029] In this technical solution, by removing the handle and inserting the limit pin into the limit hole, the rotating shaft cannot rotate, which is helpful to improve the stability of the device.

[0030] In the above technical solution, further, a feed hopper is provided on the feed pipe, and a cover body is hingedly provided on the feed hopper; wherein a first valve is provided between the feed hopper and the feed pipe.

[0031] In the present technical solution, the feed hopper facilitates the operator to put materials into the kettle body, which is beneficial to improving production efficiency, and the provided cover prevents dust and other impurities from entering the kettle body through the feed hopper.

[0032] In the above technical solution, further, a liquid inlet structure is provided above the kettle body.

[0033] In the above technical solution, further, the liquid inlet structure includes:

[0034] A liquid inlet pipe, the liquid inlet pipe is arranged on the top of the kettle body, and a sphere is arranged at the end of the liquid inlet pipe inside the kettle body, and a plurality of water outlet holes are evenly arranged on the sphere;

[0035] Wherein, a second valve is arranged on the liquid inlet pipe.

[0036] In this technical solution, through the cooperation between the liquid inlet pipe, the second valve, the ball, and the water outlet hole, water or solvent can be evenly sprayed onto the inner wall of the kettle body, and the material adhering to the inner wall of the kettle body can be cleaned, which is beneficial to improving the accuracy of the material ratio in the kettle body.

[0037] In the above technical solution, further, a delivery pipe is provided between the liquid inlet pipe and the feed hopper, and a third valve is provided on the delivery pipe.

[0038] In the present technical solution, by closing the second valve, water or solvent can be transported to the feed hopper through the delivery pipe, which can drive the residual material in the feed hopper into the kettle body, which is beneficial to improve the accuracy of the material ratio.

[0039] In the above technical solution, further, a lifting blade is provided on the stirring shaft at the bottom of the stirring rod.

[0040] In the present technical solution, the materials at the bottom of the kettle body can be stirred upwards by the provided lifting blades, which is beneficial to improving the efficiency and uniformity of the material reaction.

[0041] The beneficial effects of the utility model are:

[0042] 1. The material is put into the kettle through the feed pipe, and the motor drives the stirring rod to rotate, so that the stirring rod stirs the material in the kettle to make it fully react. The transmission structure is controlled to control the position of the slide bar in the connecting rod, thereby controlling the position between the side plate and the scraper pad to prevent the scraper pad from always contacting the inner wall of the kettle and accelerating the wear of the scraper pad. The adjustable cleaning component is helpful to increase the service life of the device.

[0043] 2. Through the cooperation among the liquid inlet pipe, the second valve, the ball and the water outlet hole, water or solvent can be evenly sprayed onto the inner wall of the kettle body, and the materials adhering to the inner wall of the kettle body can be cleaned, which is beneficial to improve the accuracy of the material ratio in the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0045] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0046] Figure 3 It is a schematic diagram of the limiting structure of the utility model;

[0047] Figure 4 This utility model Figure 2 A magnified image of area A;

[0048] Figure 5 This utility model Figure 2 Enlarged view of area B;

[0049] The symbols in the figure are:

[0050] 1. kettle body; 2. feed pipe; 3. discharge pipe; 4. stirring shaft; 5. cleaning assembly; 501. side plate; 502. scraper pad; 503. slide rod; 504. connecting rod; 505. cavity; 6. transmission structure; 601. transmission rod; 602. first bevel gear; 603. second bevel gear; 604. rotating shaft; 605. third bevel gear; 606. fourth bevel gear; 607. screw rod; 608. transmission groove; 609. supporting block; 610. handle; 7. limiting structure; 701. fixing sleeve; 702. limiting hole; 8. feed hopper; 9. cover body; 10. first valve; 11. stirring rod; 12. motor; 13. bracket; 14. liquid inlet structure; 1401. liquid inlet pipe; 1402. ball; 1403. second valve; 15. delivery pipe; 16. third valve; 17. lifting blade. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0052] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0054] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0055] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0056] Embodiment 1:

[0057] Depend on Figure 1-Figure 5As shown, this embodiment provides an esterification reaction kettle, comprising: a kettle body 1, wherein a feed pipe 2 is arranged on the top of the kettle body 1, and a discharge pipe 3 is arranged on the bottom; a stirring shaft 4, wherein the stirring shaft 4 is rotatably arranged in the kettle body 1, and a plurality of stirring rods 11 are evenly arranged on the stirring shaft 4 in a circumferential direction; a cleaning component 5, wherein the cleaning component 5 comprises: a side plate 501, wherein a scraper pad 502 is arranged on the side of the side plate 501 close to the inner wall of the kettle body 1, and a sliding rod 503 is arranged on the side away from the inner wall of the kettle body 1, and a connecting rod 504, The connecting rod 504 is hollow, and one end is connected to the stirring shaft 4, and the other end is slidably connected to the sliding rod 503. The cavity 505 is arranged inside the stirring shaft 4 and is connected to the connecting rod 504. The transmission structure 6 is arranged in the cavity 505 and the connecting rod 504, and is connected to the end face of the sliding rod 503. A bracket 13 is arranged above the kettle body 1, and a motor 12 is arranged on the bracket 13. The conveying shaft of the motor 12 is connected to the stirring shaft 4.

[0058] The material is put into the kettle body 1 through the feed pipe 2, and the stirring rod 11 is driven to rotate by the motor 12, so that the stirring rod 11 stirs the material in the kettle body 1 to make it fully react, and the position of the sliding rod 503 in the connecting rod 504 is controlled by controlling the transmission structure 6, thereby controlling the position between the side plate 501 and the scraper pad 502, so as to prevent the scraper pad 502 from always contacting the inner wall of the kettle body 1 and accelerating the wear of the scraper pad 502. The adjustable cleaning component 5 is conducive to improving the service life of the device.

[0059] Furthermore, the transmission structure 6 includes: a transmission rod 601, the transmission rod 601 is arranged in the cavity 505, and the axis thereof coincides with the axis of the stirring shaft 4; a first bevel gear 602, the first bevel gear 602 is sleeved on the transmission rod 601, and a second bevel gear 603 is arranged on the side in meshing; a rotating shaft 604, the rotating shaft 604 is arranged on the back of the second bevel gear 603, and passes through the stirring shaft 4 and extends to the outside of the stirring shaft 4; a handle 610, the handle 610 is connected to the rotating shaft 604, and is detachably connected; a third bevel gear 605, the third bevel gear 605 is sleeved on the transmission rod 601, and the fourth bevel gear 606 is symmetrically arranged on the side, and the third bevel gear 605 is meshed with the fourth bevel gear 606; the screw rod 607, the screw rod 607 is rotatably arranged in the connecting rod 504, and one end is connected to the fourth bevel gear 606; the transmission groove 608, the transmission groove 608 is arranged on the end face of the sliding rod 503, and the inner wall of the transmission groove 608 is provided with an internal thread, and is threadedly connected to the screw rod 607; the support block 609, the support block 609 is fixedly arranged in the connecting rod 504, for supporting the screw rod 607.

[0060] By turning the handle 610, the screw rod 607 is driven to rotate through the cooperation among the rotating shaft 604, the second bevel gear 603, the transmission rod 601, the third bevel gear 605, and the fourth bevel gear 606. Through the cooperation between the screw rod 607 and the slide rod 503, the slide rod 503 can be driven to move back and forth in the connecting rod 504, thereby achieving the effect of adjusting the distance between the scraper pad 502 and the inner wall of the kettle body 1.

[0061] Furthermore, a limiting structure 7 is provided between the rotating shaft 604 and the outer wall of the stirring shaft 4, and the limiting structure 7 includes: a fixing sleeve 701, which is sleeved on the rotating shaft 604 and is rotatably connected to the rotating shaft 604; and a limiting hole 702, which passes through the fixing sleeve 701 and the rotating shaft 604 for inserting a limiting pin.

[0062] By removing the handle 610 and inserting the limiting pin into the limiting hole 702, the rotating shaft 604 cannot rotate, which is helpful to improve the stability of the device.

[0063] Embodiment 2:

[0064] Depend on Figure 1-Figure 2 As shown, this embodiment provides an esterification reaction kettle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] Furthermore, a feed hopper 8 is provided on the feed pipe 2 , and a cover body 9 is hingedly provided on the feed hopper 8 ; wherein a first valve 10 is provided between the feed hopper 8 and the feed pipe 2 .

[0066] The feed hopper 8 makes it easy for the operator to put materials into the kettle body 1, which is beneficial to improving the production efficiency, and the cover body 9 is provided to prevent dust and other impurities from entering the kettle body 1 through the feed hopper 8.

[0067] Furthermore, a liquid inlet structure 14 is provided above the kettle body 1, and the liquid inlet structure 14 is used to add water or solvent into the kettle body 1. The liquid inlet structure 14 comprises: a liquid inlet pipe 1401, the liquid inlet pipe 1401 is provided at the top of the kettle body 1, and a sphere 1402 is provided at the end of the liquid inlet pipe 1401 inside the kettle body 1, and a plurality of water outlet holes are evenly distributed on the sphere 1402; wherein, a second valve 1403 is provided on the liquid inlet pipe 1401.

[0068] Through the cooperation among the liquid inlet pipe 1401, the second valve 1403, the ball 1402, and the water outlet hole, water or solvent can be evenly sprayed onto the inner wall of the kettle body 1, and the material adhering to the inner wall of the kettle body 1 can be cleaned, which is beneficial to improve the accuracy of the material ratio in the kettle body 1.

[0069] Furthermore, a delivery pipe 15 is provided between the liquid inlet pipe 1401 and the feed hopper 8 , and a third valve 16 is provided on the delivery pipe 15 .

[0070] By closing the second valve 1403, water or solvent can be delivered to the feed hopper 8 through the delivery pipe 15, which can drive the residual material in the feed hopper 8 into the kettle body 1, which is beneficial to improve the accuracy of the material ratio.

[0071] Furthermore, a lifting blade 17 is provided on the stirring shaft 4 at the bottom of the stirring rod 11 .

[0072] The lifting blades 17 can be provided to stir the material at the bottom of the kettle body 1 upward, which is beneficial to improving the efficiency and uniformity of the material reaction.

[0073] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An esterification reactor, characterized in that ,include: A kettle body (1), wherein a feed pipe (2) is arranged at the top of the kettle body (1), and a discharge pipe (3) is arranged at the bottom; A stirring shaft (4), the stirring shaft (4) being rotatably arranged in the kettle body (1), and a plurality of stirring rods (11) being evenly distributed circumferentially on the stirring shaft (4); A cleaning component (5), the cleaning component (5) comprising: A side plate (501), wherein a scraper pad (502) is arranged on the side of the side plate (501) close to the inner wall of the kettle body (1), and a slide bar (503) is arranged on the side of the side plate (501) away from the inner wall of the kettle body (1). The connecting rod (504) is hollow and has one end connected to the stirring shaft (4) and the other end slidably connected to the sliding rod (503). A cavity (505), wherein the cavity (505) is disposed inside the stirring shaft (4) and is connected to the connecting rod (504), A transmission structure (6), wherein the transmission structure (6) is arranged in the cavity (505) and the connecting rod (504), and is connected to the end surface of the sliding rod (503); A bracket (13) is arranged above the kettle body (1), and a motor (12) is arranged on the bracket (13), wherein a conveying shaft of the motor (12) is connected to a stirring shaft (4).

2. An esterification reaction kettle according to claim 1, characterized in that: The transmission structure (6) comprises: A transmission rod (601), wherein the transmission rod (601) is arranged in the cavity (505), and the axis thereof coincides with the axis of the stirring shaft (4); A first bevel gear (602), the first bevel gear (602) is sleeved on the transmission rod (601), and a second bevel gear (603) is meshedly arranged on the side; A rotating shaft (604), wherein the rotating shaft (604) is arranged on the back side of the second bevel gear (603) and penetrates the stirring shaft (4) and extends to the outside of the stirring shaft (4); A handle (610), wherein the handle (610) is connected to the rotating shaft (604) in a detachable manner; A third bevel gear (605), wherein the third bevel gear (605) is sleeved on the transmission rod (601), and a fourth bevel gear (606) is symmetrically arranged on the side thereof, and the third bevel gear (605) and the fourth bevel gear (606) are meshed with each other; A screw rod (607), the screw rod (607) is rotatably disposed in the connecting rod (504), and one end of the screw rod (607) is connected to the fourth bevel gear (606); A transmission groove (608), wherein the transmission groove (608) is arranged on the end surface of the slide rod (503), and an internal thread is arranged on the inner wall of the transmission groove (608), and the transmission groove (608) is threadedly connected to the lead screw (607); A support block (609), wherein the support block (609) is fixedly disposed in the connecting rod (504) to support the screw rod (607).

3. An esterification reaction kettle according to claim 2, characterized in that: A limiting structure (7) is provided between the rotating shaft (604) and the outer wall of the stirring shaft (4), and the limiting structure (7) comprises: A fixing sleeve (701), wherein the fixing sleeve (701) is sleeved on the rotating shaft (604) and is rotatably connected to the rotating shaft (604); A limiting hole (702), wherein the limiting hole (702) passes through the fixing sleeve (701) and the rotating shaft (604) and is used for inserting a limiting pin.

4. An esterification reaction kettle according to claim 1, characterized in that: The feed pipe (2) is provided with a feed hopper (8), and a cover body (9) is hingedly provided on the feed hopper (8); wherein a first valve (10) is provided between the feed hopper (8) and the feed pipe (2).

5. An esterification reaction kettle according to claim 1, characterized in that: A liquid inlet structure (14) is arranged above the kettle body (1), and the liquid inlet structure (14) is used to add water or solvent into the kettle body (1).

6. An esterification reaction kettle according to claim 5, characterized in that: The liquid inlet structure (14) comprises: A liquid inlet pipe (1401), the liquid inlet pipe (1401) is arranged at the top of the kettle body (1), and a sphere (1402) is arranged at the end of the liquid inlet pipe (1401) inside the kettle body (1), and a plurality of water outlet holes are evenly distributed on the sphere (1402); Wherein, a second valve (1403) is provided on the liquid inlet pipe (1401).

7. An esterification reaction kettle according to claim 6, characterized in that: A delivery pipe (15) is provided between the liquid inlet pipe (1401) and the feed hopper (8), and a third valve (16) is provided on the delivery pipe (15).

8. An esterification reaction kettle according to claim 1, characterized in that: A lifting blade (17) is arranged on the stirring shaft (4) at the bottom of the stirring rod (11).

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