A continuous production device and method of hydroxyethylethylenediaminetrimethylenephosphonic acid

Abstract

The application discloses a kind of hydroxyethyl ethylenediamine trimethylene phosphonic acid continuous production device and method, it is related to chemical reaction device field, it solves the problem that the retained liquid in the inside of existing liquid collection ring is easy to deposit in bottom, cannot be discharged completely, including liquid collection ring, the bottom of liquid collection ring is equipped with sharp triangle ring part, and the center inner wall round bottom of liquid collection ring is middle ring dome part, the present application is through in the top and bottom of liquid collection ring design middle ring dome part and sharp triangle ring part, can guarantee residual liquid maximum degree of automatic through drain hole flow, and transmission mechanism drives the sliding process of poking frame, can push residual liquid that deposit in the bottom of sharp triangle ring part, make residual liquid flow constantly, finally through drain hole flow, can effectively avoid residual liquid deposition in the inside of liquid collection ring, and reverse drive transmission mechanism can also trigger cleaning mechanism by docking assembly and closed assembly, can clean the inner wall of liquid collection ring after draining.

Description

Technical Field

[0001] This invention relates to the field of chemical reaction apparatus, specifically to a continuous production apparatus and method for hydroxyethyl ethylenediamine trimethylenephosphonic acid. Background Technology

[0002] Hydroxyethyl ethylenediamine is a curing agent for epoxy resins. The published literature (CN101830813B) describes the reaction process of ethylenediamine and ethylene oxide to produce hydroxyethyl ethylenediamine. This reaction is very fast under certain conditions. If the reaction products cannot be quickly removed from the reaction area, a series of side reactions will occur, and a large number of side reaction products will be generated.

[0003] To address the issue of significant by-product generation during the production of hydroxyethyl ethylenediamine (HEED), published literature describes a solution based on distillation principles. This solution utilizes an upper distillation section, a middle reaction section, and a lower lifting section to circulate the liquid feedstock while simultaneously achieving zero emissions of ethylene oxide, thus resolving safety concerns. The core of the patent is a novel continuous reactor that enables instantaneous gas-liquid two-phase reaction, with cross-flow contact to control side reactions. The reactor design incorporates multiple channels (gas phase inlet) to increase the flow rate of the gas phase feedstock and a low liquid layer (same-height annular overflow) to ensure a low residence time, making it a novel and practical reactor. Liquid feedstock rises laminarly from the lower central tube through the reaction zone, while gaseous feedstock enters the gas phase distribution ring from the upper central tube and laterally enters the reaction zone through distribution holes on both the inner and outer sides. The gas and liquid contact at a 90-degree cross-flow angle, resulting in an instantaneous reaction to generate a reaction liquid. This reaction liquid rapidly rises and overflows from the reaction zone through the inner and outer sides of the ring. A complete distillation reaction process has been designed to achieve continuous and semi-automated industrial production of HEED from ethylenediamine and ethylene oxide.

[0004] According to publicly available literature, the lower part of the liquid collecting ring has a tear hole, which automatically drains the remaining liquid at the end of the reaction. Since the bottom of the entire liquid collecting ring is horizontal, most of the liquid can flow out when the remaining liquid is discharged through the tear hole. However, a small amount of remaining liquid is still deposited on the horizontal bottom surface inside the liquid collecting ring and cannot be discharged through the tear hole. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous production apparatus and method for hydroxyethyl ethylenediamine trimethylenephosphonic acid that can completely drain the residual liquid inside the liquid collection ring, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous production apparatus for hydroxyethyl ethylenediamine (TRM) phosphonic acid, comprising a collection ring, wherein the bottom of the collection ring is provided with a sharp triangular ring portion, and the central inner wall of the collection ring has a circular bottom that forms the top of a middle ring. The design of the middle ring top prevents residual liquid from remaining on the inner top of the collection ring and prevents residual liquid from failing to slide down. The design of the sharp triangular ring portion facilitates the flow of residual liquid through the drain hole and minimizes the area of ​​residual liquid bearing at the bottom of the collection ring. Two drain holes are provided on the outer side of the bottom of the collection ring, and both drain holes are fitted with plugs. A draining auxiliary mechanism is provided to prevent residual liquid from depositing at the bottom of the sharp triangular ring portion and to effectively drain the residual liquid. The draining auxiliary mechanism is installed inside the collection ring and the sharp triangular ring portion, and a transmission mechanism for driving the draining auxiliary mechanism is provided on the outer side of the collection ring. A cleaning mechanism is provided in conjunction with the transmission mechanism to clean the inner wall of the collection ring and the sharp triangular ring portion. The cleaning mechanism is installed on the top of the collection ring.

[0007] Preferably, the drainage auxiliary mechanism includes a sliding frame that is fitted between the collection ring and the sharp triangular ring. When the sliding frame slides on the inner wall of the collection ring, it can push the residual liquid deposited at the bottom of the sharp triangular ring, so that the residual liquid is discharged through the drainage hole during the flow process. A concave rotating ring is rotatably installed on the top of the inner wall of the collection ring, and a connecting rod is fixedly installed between the concave rotating ring and the sliding frame. The top of the concave rotating ring is concave.

[0008] Preferably, the transmission mechanism includes a motor fixedly installed on the outside of the liquid collecting ring. A plurality of teeth evenly distributed in a circle are fixedly installed on one side wall of the top concave ring of the concave rotating ring. A gear one is rotatably installed on the inner side of the top concave ring of the concave rotating ring, and the gear one is movably meshed with the teeth. During the rotation of the gear one, the concave rotating ring can slide on the top of the liquid collecting ring. A connecting shaft that rotatably passes through the top of the liquid collecting ring is fixedly inserted into the center of the gear one, and a gear two is fixedly sleeved on the top of the connecting shaft. A gear three is provided at the output end of the motor, and a toothed belt is installed between the gear two and the gear three for transmission.

[0009] Preferably, an idler assembly is provided between the motor output end and the gear three. The idler assembly includes several conical slots equidistantly distributed around the motor output end. Two symmetrically distributed top conical sliders are radially slidable on the inner wall of the gear three, and the top conical part of the top conical slider is slidably embedded in the inner side of the conical slot. A spring is provided at the end of the top conical slider away from the conical slot. The spring applies pressure to the top conical slider to make it fit tightly with the conical slot.

[0010] Preferably, the cleaning mechanism includes a plurality of support sleeves fixedly installed on the top of the liquid collection ring, and a delivery pipe is fixedly installed on the top of the plurality of support sleeves. The support sleeves and the delivery pipe are connected, and a through pipe is installed on the outer side of the delivery pipe, through which cleaning fluid can be injected into the interior of the delivery pipe. A docking assembly is provided between the support sleeves and the concave rotating ring.

[0011] Preferably, the docking assembly includes several guide arc grooves circumferentially distributed at equal intervals on the top of the concave rotating ring, and each guide arc groove has a through hole corresponding to the inside of the concave rotating ring on its outer side. The number of guide arc grooves and through holes is the same as the number of support sleeves. Each support sleeve has a slide cylinder installed inside, and a piston sleeve block that slides against the inner wall of the support sleeve block is fixedly sleeved on the outer surface of the slide cylinder. The lower end of the slide cylinder is slidably inserted into the inside of the liquid collecting ring. A tension spring is fixedly installed between the bottom of the piston sleeve block and the support sleeve. Several air holes circumferentially distributed at equal intervals are opened on the outer periphery of the bottom of the support sleeve. The actuating frame and the connecting rod are hollow, and one of the through holes communicates with the connecting rod. A one-way spray head is fixedly installed at the bottom of each through hole and on the outer side of the actuating frame. When the bottom of the slide cylinder docks with the upper part of the through hole, its cleaning fluid can be sprayed out through the one-way spray head. The bottom of the slide cylinder is provided with a sealing assembly.

[0012] Preferably, the guide arc groove includes a horizontal bottom groove and an arc-shaped bottom groove, and the through hole is located on one side close to the horizontal bottom groove. The guide arc groove, composed of the horizontal bottom groove and the arc-shaped bottom groove, is in the shape of a slide.

[0013] Preferably, the sealing assembly includes an extended arc block fixedly installed on the outer side of the bottom of the slide cylinder, a bottom sealing block slidably fitted to the bottom of the slide cylinder, and the outer diameters of the slide cylinder and the bottom sealing block are the same. A fitting block is fixedly installed on the upper part of the bottom sealing block, and the fitting block is slidably fitted into the inner side of the extended arc block. A second spring is provided at the end of the fitting block away from the slide cylinder. Under normal conditions, the second spring applies pressure to the bottom sealing block through the fitting block, which can ensure that the bottom sealing block seals the lower end of the slide cylinder.

[0014] Preferably, the height of the bottom sealing block is consistent with the depth of the horizontal bottom groove, and the width of the horizontal bottom groove and the arc-shaped bottom groove is greater than the diameter of the bottom sealing block.

[0015] A continuous production method for hydroxyethyl ethylenediamine trimethylenephosphonic acid, comprising the following steps:

[0016] S1. In the auxiliary drainage stage, the drive of the transmission mechanism causes the concave rotating ring to rotate on the top of the inner wall of the liquid collecting ring. During this rotation, the connecting rod drives the actuating frame to slide against the inner wall of the liquid collecting ring and the sharp triangular ring. During the sliding process, the residual deposited liquid can be pushed out and discharged through the drainage hole.

[0017] S2. In the inner wall cleaning pretreatment stage, the transmission mechanism drives the concave rotating ring to rotate counterclockwise to clean the residual sediment. When the transmission mechanism drives the concave rotating ring to rotate clockwise, the sliding cylinder can be stably connected to the through hole through the docking component and the sealing component.

[0018] S3. During the cleaning stage, after the slide and through hole are connected, high-pressure hot water can be introduced into the delivery pipe, and the inside of the liquid collection ring can be cleaned by a one-way jet head.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention, by designing a circular top and a sharp triangular ring at the top and bottom of the liquid collection ring, ensures that residual liquid can automatically flow out through the drain hole to the maximum extent. During the sliding process of the transmission mechanism driving the actuating frame, residual liquid deposited at the bottom of the sharp triangular ring can be pushed, allowing the residual liquid to flow continuously and eventually flow out through the drain hole. This effectively prevents residual liquid from accumulating inside the liquid collection ring. Furthermore, the reverse drive transmission mechanism can trigger the cleaning mechanism through the docking component and the sealing component, which can clean the inner wall of the liquid collection ring after the drainage is completed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the liquid collecting ring of the present invention;

[0023] Figure 3 This is a cross-sectional view of the liquid collection ring of the present invention;

[0024] Figure 4 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the gear three of the present invention;

[0026] Figure 6 This is a schematic diagram of the horizontal bottom groove and the arc-shaped inclined bottom groove of the present invention;

[0027] Figure 7 This is a schematic diagram showing the connection relationship between the connecting rod and the actuating frame and the through hole in this invention;

[0028] Figure 8 This is a schematic diagram of the bottom closed block structure of the present invention.

[0029] In the diagram: 1. Liquid collecting ring; 2. Sharp triangular ring; 3. Drainage hole; 4. Round top of middle ring; 5. Drainage auxiliary mechanism; 6. Transmission mechanism; 7. Cleaning mechanism; 8. Docking assembly; 9. Sealing assembly; 10. Concave rotating ring; 11. Actuating frame; 12. Motor; 13. Gear 1; 14. Gear; 15. Gear 2; 16. Gear 3; 17. Support sleeve; 18. Delivery pipe; 19. Conical groove; 20. Top cone slider; 21. Spring 1; 22. Through hole; 23. Connecting rod; 24. One-way spray head; 25. Slide cylinder; 26. Piston sleeve block; 27. Tension spring; 28. Air hole; 29. ​​Bottom sealing block; 30. Extending arc block; 31. Fitting block; 32. Spring 2; 33. Guide arc groove; 34. Horizontal bottom groove; 35. Arc-shaped bottom groove. Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0031] Please see Figures 1-3 The diagram shows a continuous production apparatus for hydroxyethyl ethylenediamine (HEDTA) and trimethylphosphonic acid, including a collection ring 1. The bottom of the collection ring 1 has a sharp triangular ring portion 2, and the central inner wall of the collection ring 1 has a circular bottom and a central circular top portion 4. The design of the central circular top portion 4 prevents residual liquid from remaining on the inner top of the collection ring 1, ensuring it flows down smoothly. The sharp triangular ring portion 2 facilitates the flow of residual liquid through the drain hole 3 and minimizes the area of ​​the bottom of the collection ring 1 that bears the residual liquid. Two drain holes 3 are opened on the bottom outer side of the 1, and plugs are embedded in the two drain holes 3; a drain auxiliary mechanism 5 is provided to prevent residual liquid from accumulating at the bottom of the sharp triangular ring 2 and to effectively drain the residual liquid. The drain auxiliary mechanism 5 is installed inside the liquid collection ring 1 and the sharp triangular ring 2, and a transmission mechanism 6 is provided on the outer side of the liquid collection ring 1 to drive the drain auxiliary mechanism 5; a cleaning mechanism 7 is provided in conjunction with the transmission mechanism 6 to clean the inner wall of the liquid collection ring 1 and the sharp triangular ring 2. The cleaning mechanism 7 is installed on the top of the liquid collection ring 1.

[0032] Please see Figure 2 and Figure 4The drainage auxiliary mechanism 5 shown in the figure includes a sliding frame 11 that is fitted between the collection ring 1 and the sharp triangular ring 2. When the sliding frame 11 slides on the inner wall of the collection ring 1, it can push the residual liquid deposited at the bottom of the sharp triangular ring 2, so that the residual liquid is discharged through the drainage hole 3 during the flow process. A concave rotating ring 10 is rotatably installed on the top of the inner wall of the collection ring 1, and a connecting rod 23 is fixedly installed between the concave rotating ring 10 and the sliding frame 11. The top of the concave rotating ring 10 is in the shape of a concave ring.

[0033] Please see Figure 4 The transmission mechanism 6 shown in the figure includes a motor 12 fixedly installed on the outside of the liquid collection ring 1. A number of teeth 14 distributed circumferentially on one side wall of the top concave ring 10 are fixedly installed. A gear 13 is rotatably installed on the inner side of the top concave ring 10, and the gear 13 is movably meshed with the teeth 14. During the rotation of the gear 13, the concave ring 10 can slide on the top of the liquid collection ring 1. A connecting shaft that rotatably passes through the top of the liquid collection ring 1 is fixedly inserted into the center of the gear 13, and a gear 2 15 is fixedly sleeved on the top of the connecting shaft. A gear 3 16 is provided at the output end of the motor 12, and a toothed belt is installed between the gear 2 15 and the gear 3 16 for transmission.

[0034] A continuous production method for hydroxyethyl ethylenediamine trimethylenephosphonic acid, comprising the following steps:

[0035] S1. During the auxiliary drainage stage, the drive of the transmission mechanism 6 causes the concave rotating ring 10 to rotate on the top of the inner wall of the liquid collecting ring 1. During this rotation, the connecting rod 23 drives the actuating frame 11 to slide against the inner wall of the liquid collecting ring 1 and the sharp triangular ring 2. During the sliding process, the residual deposited liquid can be pushed out, and during the pushing process, it can be discharged through the drainage hole 3.

[0036] S2, In the pretreatment stage of cleaning the inner wall, the transmission mechanism 6 drives the concave rotating ring 10 to rotate counterclockwise to clean the residual sediment. When the transmission mechanism 6 drives the concave rotating ring 10 to rotate clockwise, the sliding cylinder 25 can be stably connected to the through hole 22 through the docking component 8 and the sealing component 9.

[0037] S3. During the cleaning stage, after the slide cylinder 25 and the through hole 22 are connected, high-pressure hot water can be introduced into the inside of the delivery pipe 18, and the inside of the liquid collection ring 1 can be cleaned by the one-way jet head 24.

[0038] The working principle of effectively removing residual liquid from the bottom of the collection ring 1 is as follows: After the reaction of ethylenediamine and ethylene oxide to produce hydroxyethyl ethylenediamine is completed, the residual liquid inside the collection ring 1 can be automatically discharged downward through the drain hole 3. To ensure that the residual liquid does not accumulate at the bottom of the collection ring 1, the motor 12 can be started, so that the gear 13 meshes with the meshing gear 14, causing the concave rotating ring 10 to rotate counterclockwise at the top of the collection ring 1. During the rotation, the concave rotating ring 10 can slide inside the collection ring 1 through the connecting rod 23 with the actuating frame 11. The bottom of the actuating frame 11 can push the residual liquid deposited at the bottom of the sharp triangular ring 2, so that the residual liquid flows continuously at the bottom of the collection ring 1. When it flows to the drain hole 3, it can be discharged through the drain hole 3, thus preventing the residual liquid from remaining at the top of the collection ring 1 and solving the problem of residual liquid not being completely discharged. Example

[0039] Please see Figure 5 This embodiment further illustrates Example 1. An idler assembly is provided between the output end of the motor 12 and the gear 3 16. The idler assembly includes several conical slots 19 that are circumferentially equidistantly distributed outside the output end of the motor 12. Two symmetrically distributed top cone sliders 20 are radially slidably provided on the inner wall of the gear 3 16. The top cone portion of the top cone slider 20 is slidably embedded in the inner side of the conical slot 19. A spring 21 is provided at the end of the top cone slider 20 away from the conical slot 19. The spring 21 applies pressure to the top cone slider 20 to make it fit tightly with the conical slot 19.

[0040] Please see Figure 4 The cleaning mechanism 7 shown in the figure includes several support sleeves 17 fixedly installed on the top of the liquid collection ring 1, and a delivery pipe 18 is fixedly installed on the top of the several support sleeves 17. The support sleeves 17 and the delivery pipe 18 are connected, and a through pipe is installed on the outer side of the delivery pipe 18, through which cleaning fluid can be injected into the interior of the delivery pipe 18. A docking assembly 8 is provided between the support sleeves 17 and the concave rotating ring 10.

[0041] Please see Figures 6-8The diagram shows that the docking assembly 8 includes several circumferentially equidistant guide arc grooves 33 formed on the top of the concave rotating ring 10. Each guide arc groove 33 has a through hole 22 on its outer side corresponding to the interior of the concave rotating ring 10. The number of guide arc grooves 33 and through holes 22 is the same as the number of support sleeves 17. Each support sleeve 17 has a sliding cylinder 25 installed inside, and a piston sleeve block 26 that slides and fits against the inner wall of the support sleeve 17 is fixedly sleeved on the outer surface of the sliding cylinder 25. The lower end of the sliding cylinder 25 is slidably inserted into the interior of the liquid collecting ring 1. A tension spring 27 is fixedly installed between the bottom of the plug block 26 and the support sleeve 17. Several air holes 28 are circumferentially distributed around the bottom periphery of the support sleeve 17. The actuating frame 11 and the connecting rod 23 are hollow, and one of the through holes 22 communicates with the connecting rod 23. A one-way spray head 24 is fixedly installed at the bottom of each through hole 22 and on the outside of the actuating frame 11. When the bottom of the slide cylinder 25 is aligned with the upper part of the through hole 22, the cleaning fluid can be sprayed out through the one-way spray head 24. The bottom of the slide cylinder 25 is provided with a sealing component 9.

[0042] Please see Figure 6 The guide arc groove 33 shown in the figure includes a horizontal bottom groove portion 34 and an arc-shaped bottom groove portion 35. The through hole 22 is located on the side close to the horizontal bottom groove portion 34. The guide arc groove 33, which is composed of the horizontal bottom groove portion 34 and the arc-shaped bottom groove portion 35, is in the shape of a slide.

[0043] Please see Figure 8 The diagram shows that the sealing component 9 includes an extended arc block 30 fixedly installed on the outer side of the bottom of the slide cylinder 25. A bottom sealing block 29 is slidably fitted to the bottom of the slide cylinder 25, and the outer diameters of the slide cylinder 25 and the bottom sealing block 29 are the same. A fitting block 31 is fixedly installed on the upper part of the bottom sealing block 29, and the fitting block 31 is slidably fitted into the inner side of the extended arc block 30. A spring 32 is provided at the end of the fitting block 31 away from the slide cylinder 25. Under normal conditions, the spring 32 applies pressure to the bottom sealing block 29 through the fitting block 31, which can ensure that the bottom sealing block 29 seals the lower end of the slide cylinder 25.

[0044] In this embodiment: the motor 12 drives the concave rotating ring 10 to rotate counterclockwise. After the residual liquid is drained, the motor 12 can be driven in the opposite direction to rotate the concave rotating ring 10 clockwise. During the rotation, under the action of the tension spring 27, the bottom sealing block 29 of the slide cylinder 25 always slides against the upper end surface of the concave rotating ring 10 until it slides through the arc-shaped bottom groove 35 to the inside of the horizontal bottom groove 34. At this time, under the continuous rotation of the concave rotating ring 10, the edge of the horizontal bottom groove 34 can push the bottom sealing block 29 and compress the spring 32. At this time, the bottom sealing block 29 no longer seals the bottom of the slide cylinder 25. During the compression of the second spring 32, the bottom of the slide cylinder 25 will slide a distance along the upper end face of the concave rotating ring 10. Then, the second spring 32 is compressed to its maximum value, and the concave rotating ring 10 can no longer rotate. At this time, the bottom of the slide cylinder 25 is connected to the through hole 22. Since the concave rotating ring 10 can no longer rotate, and the motor 12 continues to output, the top cone slider 20 will be pushed into the inside of the third gear 16 by the conical slot 19. At this time, the output end of the motor 12 will run idle.

[0045] When the motor 12 spins freely at its output end, it means that the bottom of the slide 25 is connected to the through hole 22. At this time, high-pressure hot water can be delivered into the inside of the delivery pipe 18. The hot water can then be sprayed out through the one-way jet head 24 to clean the inside of the liquid collection ring 1. The hot water can melt the crystals formed by the retained liquid and effectively clean the inner wall of the liquid collection ring 1. Example

[0046] Please see Figure 8 This embodiment further illustrates that, for other embodiments, the height of the bottom sealing block 29 is consistent with the depth of the horizontal bottom groove 34, and the width of the horizontal bottom groove 34 and the arc-shaped bottom groove 35 is greater than the diameter of the bottom sealing block 29.

[0047] In this embodiment, the height of the bottom sealing block 29 and the depth of the horizontal bottom groove 34 are the same in order to ensure that after the bottom sealing block 29 is restricted by the horizontal bottom groove 34, the bottom of its slide cylinder 25 can slide a certain distance against the upper end surface of the concave rotating ring 10.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous production apparatus for hydroxyethyl ethylenediamine trimethylenephosphonic acid, comprising a liquid collection ring (1), characterized in that: The liquid collecting ring (1) has a sharp triangular ring (2) at its bottom, and the inner wall of the liquid collecting ring (1) has a round bottom and a round top (4). Two drain holes (3) are opened on the outer side of the bottom of the liquid collecting ring (1), and plugs are embedded in the two drain holes (3). A draining auxiliary mechanism (5) is provided to prevent residual liquid from accumulating at the bottom of the sharp triangular ring (2) and to effectively drain the residual liquid. The draining auxiliary mechanism (5) is installed inside the liquid collecting ring (1) and the sharp triangular ring (2), and a transmission mechanism (6) for driving the draining auxiliary mechanism (5) is provided on the outer side of the liquid collecting ring (1). The draining auxiliary mechanism (5) includes a sliding fit embedded in the liquid collecting ring. (1) A toggle frame (11) between the liquid collection ring (1) and the sharp triangular ring (2), a concave rotating ring (10) is rotatably installed on the top of the inner wall of the liquid collection ring (1), and a connecting rod (23) is fixedly installed between the concave rotating ring (10) and the toggle frame (11), the top of the concave rotating ring (10) is concave ring-shaped; a cleaning mechanism (7) is used in conjunction with the transmission mechanism (6) to clean the inner wall of the liquid collection ring (1) and the sharp triangular ring (2), the cleaning mechanism (7) is installed on the top of the liquid collection ring (1), the cleaning mechanism (7) includes a plurality of support sleeves (17) fixedly installed on the top of the liquid collection ring (1), and the tops of the plurality of support sleeves (17) are together A conveying pipe (18) is fixedly installed on the support sleeve (17), which communicates with the conveying pipe (18). A through pipe extends from the outer side of the conveying pipe (18). A docking assembly (8) is provided between the support sleeve (17) and the concave rotating ring (10). The docking assembly (8) includes several guide arc grooves (33) that are circumferentially equidistantly distributed on the top of the concave rotating ring (10). Each guide arc groove (33) has a through hole (22) on its outer side corresponding to the interior of the concave rotating ring (10). The number of guide arc grooves (33) and through holes (22) is the same as the number of support sleeves (17). The interior of each support sleeve (17) is... A slide cylinder (25) is installed, and a piston sleeve block (26) is fixedly sleeved on the outer surface of the slide cylinder (25) and slides against the inner wall of the support sleeve column (17). The lower end of the slide cylinder (25) is slidably inserted into the inside of the liquid collecting ring (1). A tension spring (27) is fixedly installed between the bottom of the piston sleeve block (26) and the support sleeve column (17). The actuating frame (11) and the connecting rod (23) are hollow, and one of the through holes (22) communicates with the connecting rod (23). A one-way spray head (24) is fixedly installed at the bottom of each through hole (22) and on the outside of the actuating frame (11). A sealing component (9) is provided at the bottom of the slide cylinder (25).

2. The continuous production apparatus for hydroxyethyl ethylenediamine trimethylenephosphonic acid according to claim 1, characterized in that: The transmission mechanism (6) includes a motor (12) fixedly installed on the outside of the liquid collection ring (1). A number of teeth (14) are fixedly installed on one side wall of the concave ring at the top. A gear (13) is rotatably installed on the inner side of the concave ring at the top. The gear (13) meshes with the teeth (14). A connecting shaft that rotatably passes through the top of the liquid collection ring (1) is fixedly inserted into the center of the gear (13). A gear (15) is fixedly sleeved on the top of the connecting shaft. A gear (16) is provided at the output end of the motor (12). A toothed belt is installed between the gear (15) and the gear (16).

3. The continuous production apparatus for hydroxyethyl ethylenediamine trimethylenephosphonic acid according to claim 2, characterized in that: An idler assembly is provided between the output end of the motor (12) and the gear three (16). The idler assembly includes several conical slots (19) that are circumferentially distributed outside the output end of the motor (12). Two symmetrically distributed top cone sliders (20) are radially slidably provided on the inner wall of the gear three (16). The top cone part of the top cone slider (20) is slidably embedded in the inner side of the conical slot (19). A spring (21) is provided at the end of the top cone slider (20) away from the conical slot (19).

4. The continuous production apparatus for hydroxyethyl ethylenediamine trimethylenephosphonic acid according to claim 1, characterized in that: The guide groove (33) includes a horizontal bottom groove (34) and an arc-shaped bottom groove (35), and the through hole (22) is located on the side close to the horizontal bottom groove (34).

5. The continuous production apparatus for hydroxyethyl ethylenediamine trimethylenephosphonic acid according to claim 4, characterized in that: The closing component (9) includes an extended arc block (30) fixedly installed on the outer side of the bottom of the slide cylinder (25). A bottom closing block (29) is slidably fitted to the bottom of the slide cylinder (25), and the outer diameters of the slide cylinder (25) and the bottom closing block (29) are the same. A fitting block (31) is fixedly installed on the upper part of the bottom closing block (29), and the fitting block (31) is slidably fitted into the inner side of the extended arc block (30). A spring (32) is provided at one end of the fitting block (31) away from the slide cylinder (25).

6. The continuous production apparatus for hydroxyethyl ethylenediamine trimethylenephosphonic acid according to claim 5, characterized in that: The height of the bottom sealing block (29) is the same as the depth of the horizontal bottom groove (34), and the width of the horizontal bottom groove (34) and the arc-shaped bottom groove (35) is greater than the diameter of the bottom sealing block (29).

7. A continuous production method for hydroxyethyl ethylenediamine trimethylenephosphonic acid, implemented using the production apparatus as described in any one of claims 1-6, characterized in that: The method includes the following steps: S1. During the auxiliary drainage stage, the drive of the transmission mechanism (6) causes the concave rotating ring (10) to rotate on the top of the inner wall of the liquid collecting ring (1). During this rotation, the connecting rod (23) drives the actuating frame (11) to slide against the inner wall of the liquid collecting ring (1) and the sharp triangular ring (2). During the sliding process, the residual deposited liquid can be pushed out, and during the pushing process, it can be discharged through the drainage hole (3). S2, In the pretreatment stage of cleaning the inner wall, the transmission mechanism (6) drives the concave rotating ring (10) to rotate counterclockwise to clean the residual sediment. When the transmission mechanism (6) drives the concave rotating ring (10) to rotate clockwise, the sliding cylinder (25) can be stably connected to the through hole (22) through the docking assembly (8) and the sealing assembly (9). S3. Cleaning stage: After the slide (25) and through hole (22) are connected, high-pressure hot water is input into the inside of the delivery pipe (18) and the inside of the liquid collection ring (1) is cleaned by the one-way jet head (24).

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