A novel reaction vessel for the preparation of methyldiethanolamine
By employing a cleaning method combining hollow scrapers and high-pressure airflow in the reactor, the problem of material adhesion was solved, achieving efficient cleaning of the reactor's inner wall and convenient disassembly of components, thus improving the efficiency of methyldiethanolamine preparation and the reactor's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOMING YUNLONG IND DEV
- Filing Date
- 2025-05-16
- Publication Date
- 2026-07-17
AI Technical Summary
In the current process of preparing methyldiethanolamine, the material adheres to the inner wall of the reactor and cannot be effectively cleaned, resulting in incomplete reaction and reduced reactor performance.
A novel reactor was designed, employing a cleaning method that combines hollow scrapers with high-pressure airflow. The hollow scrapers scrape off materials along the inner wall of the reactor, while the high-pressure airflow blows off the materials on the scrapers. Combined with a rotating cleaning mechanism and a detachable connection structure, efficient cleaning is achieved.
It effectively cleans the material inside the vessel, improves the completeness of the material reaction and the efficiency of the vessel, avoids material waste, and facilitates the inspection and maintenance of components.
Smart Images
Figure CN224507052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reaction vessel technology, specifically to a novel reaction vessel for the preparation of methyldiethanolamine. Background Technology
[0002] In the preparation of methyldiethanolamine, to ensure the stable progress of the reaction, a reaction vessel is used to stably add and mix the raw materials. For example, patent document CN218962598U discloses a reaction vessel for the preparation of N-methyldiethanolamine. This reaction vessel, through the cooperation of a fixed tube, spring, circular limiting plate and connecting rod, allows an arc-shaped scraper to fit tightly against the inner wall of the vessel. Then, under the rotation of a transmission mechanism consisting of a servo motor, a first circular gear, a second circular gear and a rotating rod, the arc-shaped scraper moves in a circular linear motion along the inner wall of the vessel, scraping off the raw materials used for N-methyldiethanolamine adhering to the inner wall of the vessel. This helps to improve the product yield and also avoids contamination of the new raw materials when they are added to the vessel for subsequent reactions.
[0003] However, when cleaning the adhering material by contacting the inner wall of the reactor with the scraper, the adhering material will transfer and continue to adhere to the scraper, so that the material cannot be effectively cleaned, reducing the sufficiency of the material reaction and reducing the effectiveness of the reactor. Utility Model Content
[0004] In view of the problems existing in the novel reaction vessels used for the preparation of methyldiethanolamine, this utility model is proposed.
[0005] Therefore, the purpose of this invention is to provide a novel reaction vessel for the preparation of methyldiethanolamine, solving the problem that materials adhere to the inner wall of the reaction vessel during the preparation of methyldiethanolamine and cannot be effectively cleaned. To achieve the above objective, this invention provides the following technical solution:
[0006] A novel reaction vessel for the preparation of methyldiethanolamine includes a vessel body and a vessel cover located on top of the vessel body. A rotating rod is rotatably inserted inside the vessel cover. The rotating rod has a hollow structure and a mounting tube is connected to its side wall. A connecting tube is inserted into the opening of the mounting tube. A hollow scraper is fixedly sleeved on the upper end of the connecting tube. The hollow scraper contacts and cooperates with the inner side wall of the vessel body, and a blowing pipe is connected to its upper side.
[0007] An air pump is fixedly installed on the outer wall of the vessel body. An air outlet pipe is connected to the air outlet end of the air pump. The upper end of the air outlet pipe is rotatably inserted through the upper end of the rotating rod. A rotary cleaning mechanism for driving the hollow scraper to rotate is provided on the top of the vessel lid.
[0008] Preferably, the rotary cleaning mechanism includes a motor, which is fixedly mounted on the top of the vessel lid, and a drive gear is fixedly mounted at the end of the output shaft. The drive gear is coupled with a transmission gear, and the transmission gear is fixedly sleeved with the rotating rod.
[0009] Preferably, the side of the hollow scraper that contacts the inner wall of the vessel is tapered, and the hollow scraper is angled.
[0010] Preferably, a sealing ring is fixedly sleeved at the lower end of the connecting pipe, the sealing ring is inserted into the mounting pipe, two symmetrically arranged locking blocks are fixedly arranged on the wall of the mounting pipe, a fixing ring is fixedly sleeved on the outer wall of the connecting pipe, two symmetrically arranged mounting plates are fixedly arranged on the outer wall of the fixing ring, a crossbar is fixedly arranged inside the mounting plate, a U-shaped hook is rotatably sleeved on the wall of the crossbar, the end of the U-shaped hook is engaged inside the locking block, and a torsion spring is sleeved on the wall of the crossbar, the two ends of the torsion spring are fixedly connected to the crossbar and the U-shaped hook respectively.
[0011] Furthermore, a guide slope is provided on the side of the locking block near the connecting pipe. Preferably, the sealing ring has a T-shaped cross-section.
[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0013] 1. This utility model, through the provided vessel body, vessel cover, rotating rod, mounting pipe, connecting pipe, hollow scraper, air pump and air outlet pipe, can scrape off the adhering material along the inner wall of the reactor while the hollow scraper scrapes off the material adhering to the outer wall of the scraper under the action of high pressure airflow, and blow the material adhering to the outer wall of the scraper into the material inside the vessel body, ensuring that the material is not wasted and improving the preparation effect.
[0014] 2. This utility model, through the provided installation pipe and connecting pipe, allows for easy removal of the connecting pipe and hollow scraper for maintenance when the cover and vessel body are separated, thus improving the multi-functionality of the reaction vessel. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure of the hollow scraper, connecting pipe, and mounting pipe of this utility model;
[0018] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.
[0019] Explanation of reference numerals in the attached drawings: 1. Vessel body; 2. Vessel lid; 3. Rotating rod; 4. Mounting pipe; 5. Connecting pipe; 6. Hollow scraper; 7. Air blowing pipe; 8. Air pump; 9. Air outlet pipe; 10. Motor; 11. Drive gear; 12. Transmission gear; 13. Sealing ring; 14. Clamping block; 15. Fixing ring; 16. Mounting plate; 17. Crossbar; 18. U-shaped hook; 19. Torsion spring. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0021] This utility model discloses a novel reaction vessel for the preparation of methyldiethanolamine.
[0022] This utility model provides, for example Figure 1-3 A novel reactor for the preparation of methyldiethanolamine is shown, comprising a reactor body 1 and a reactor cover 2 located on top of the reactor body 1. A rotating rod 3 is rotatably inserted inside the reactor cover 2. The rotating rod 3 is hollow and has an installation pipe 4 connected to its side wall. A connecting pipe 5 is inserted into the opening of the installation pipe 4. A hollow scraper 6 is fixedly sleeved on the upper end of the connecting pipe 5. The side of the hollow scraper 6 that contacts the inner wall of the reactor body 1 is conical and is angled. During rotation, the hollow scraper 6 generates an axial force on the inner wall of the reactor body, pushing the scraped material towards the bottom of the reactor body, preventing the material from accumulating in front of the scraper and improving cleaning efficiency. Compared with a vertical scraper, the cleaning area increases in the same amount of time. The hollow scraper 6 contacts and cooperates with the inner side wall of the reactor body 1, and an air blowing pipe 7 is connected to its upper side.
[0023] An air pump 8 is fixedly installed on the outer wall of the vessel body 1. An air outlet pipe 9 is connected to the air outlet end of the air pump 8. The upper end of the air outlet pipe 9 is rotatably inserted into the upper end of the rotating rod 3. The air outlet pipe 9 can be made of rigid plastic. A rotary cleaning mechanism for driving the hollow scraper 6 to rotate is provided on the top of the vessel lid 2. The rotary cleaning mechanism includes a motor 10. The motor 10 is fixedly installed on the top of the vessel lid 2, and a drive gear 11 is fixedly installed at the end of the output shaft. The drive gear 11 is matched with a transmission gear 12. The transmission gear 12 is fixedly sleeved with the rotating rod 3.
[0024] In order to allow the internal components of vessel 1 to be removed for inspection after the reaction is complete, such as... Figure 2-3As shown, a sealing ring 13 is fixedly sleeved at the lower end of the connecting pipe 5. The sealing ring 13 has a T-shaped cross-section and is inserted into the mounting pipe 4. Two symmetrically arranged locking blocks 14 are fixedly installed on the wall of the mounting pipe 4. A fixing ring 15 is fixedly sleeved on the outer wall of the connecting pipe 5. Two symmetrically arranged mounting plates 16 are fixedly installed on the outer wall of the fixing ring 15. A crossbar 17 is fixedly installed inside the mounting plate 16. A U-shaped hook 18 is rotatably sleeved on the wall of the crossbar 17. The end of the U-shaped hook 18 is engaged with the inside of the locking block 14. A guide slope is opened on the side of the locking block 14 near the connecting pipe 5. A torsion spring 19 is sleeved on the wall of the crossbar 17. The two ends of the torsion spring 19 are fixedly connected to the crossbar 17 and the U-shaped hook 18, respectively.
[0025] Working principle: Before the preparation of methyldiethanolamine, the raw materials are fed into the reactor body 1 through the feed pipe of the reactor itself, and the reactor body 1 is started to mix the raw materials. During the reaction, the motor 10 is started, and its output shaft drives the transmission gear 12 to rotate through the drive gear 11, which in turn drives the rotating rod 3 and the hollow scraper 6 to move in a circular motion along the inner wall of the reactor body 1. The conical contact surface of the hollow scraper 6 is in contact with the inner wall of the reactor body to scrape off the methyldiethanolamine raw materials or products that are adhering to it.
[0026] Meanwhile, the air pump 8 introduces high-pressure airflow into the rotating rod 3 through the air outlet pipe 9. The airflow enters the hollow scraper 6 through the installation pipe 4 and the connecting pipe 5, and is ejected at high speed from the air blowing pipe 7. The high-pressure airflow directly sweeps the surface of the scraper, blowing the material adhering to the scraper during the scraping process into the vessel body 1, avoiding material residue and waste. When the hollow scraper 6 needs to be repaired, press the U-shaped hook 18 inward to disengage it from the locking block 14, and the connecting pipe 5 can be pulled out from the installation pipe 4 to achieve quick disassembly of the scraper assembly.
[0027] During installation, the connecting pipe 5 is inserted into the mounting pipe 4. The U-shaped hook 18 automatically engages with the guide slope of the locking block 14 under the action of the torsion spring 19, forming a lock. The T-shaped section of the sealing ring 13 fits tightly with the inner wall of the mounting pipe 4 to ensure airflow sealing and prevent leakage.
[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A new type of reaction kettle for the preparation of methyldiethanolamine, comprising a kettle body (1) and a kettle cover (2) arranged at the top of the kettle body (1), characterized in that, The inside of the lid (2) is rotatably connected to a rotating rod (3). The rotating rod (3) is hollow and has an installation tube (4) connected to its side wall. A connecting tube (5) is inserted into the opening of the installation tube (4). A hollow scraper (6) is fixedly sleeved on the upper end of the connecting tube (5). The hollow scraper (6) is in contact with the inner side wall of the body (1) and has an air blowing pipe (7) connected to its upper side. An air pump (8) is fixedly installed on the outer wall of the vessel body (1). An air outlet pipe (9) is connected to the air outlet end of the air pump (8). The upper end of the air outlet pipe (9) is rotatably inserted into the upper end of the rotating rod (3). A rotary cleaning mechanism for driving the hollow scraper (6) to rotate is provided on the top of the vessel cover (2).
2. The novel reactor for the preparation of methyldiethanolamine as claimed in claim 1, wherein, The rotating cleaning mechanism includes a motor (10), which is fixedly mounted on the top of the lid (2), and a drive gear (11) is fixedly mounted at the end of the output shaft. The drive gear (11) is fitted with a transmission gear (12), and the transmission gear (12) is fixedly sleeved with the rotating rod (3).
3. The novel reactor for the preparation of methyldiethanolamine as claimed in claim 1, wherein, The hollow scraper (6) is tapered on the side that contacts the inner wall of the vessel body (1), and the hollow scraper (6) is obliquely arranged.
4. The novel reactor for the preparation of methyldiethanolamine as claimed in claim 1, wherein, A sealing ring (13) is fixedly fitted at the lower end of the connecting pipe (5). The sealing ring (13) is inserted into the mounting pipe (4). Two symmetrically arranged locking blocks (14) are fixedly fitted on the wall of the mounting pipe (4). A fixing ring (15) is fixedly fitted on the outer wall of the connecting pipe (5). Two symmetrically arranged mounting plates (16) are fixedly fitted on the outer wall of the fixing ring (15). A crossbar (17) is fixedly fitted inside the mounting plate (16). A U-shaped hook (18) is rotatably fitted on the wall of the crossbar (17). The end of the U-shaped hook (18) is engaged inside the locking block (14). A torsion spring (19) is fitted on the wall of the crossbar (17). The two ends of the torsion spring (19) are fixedly connected to the crossbar (17) and the U-shaped hook (18) respectively.
5. The novel reactor for the preparation of methyldiethanolamine as claimed in claim 4, wherein, The card block (14) has a guide slope on the side near the connecting pipe (5).
6. The novel reactor for the preparation of methyldiethanolamine as claimed in claim 4, wherein, The sealing ring (13) has a T-shaped cross-section.