Omethoate double-layer built-in projecting disc reaction kettle
By using a double -layer built -in dial design in the oxygen fruit synthetic reaction kettle, combined with the external cooling and thermal insulation layer, the problem of poor cooling effect of the existing reactor kettle is solved. The uniformity of a methamine has significantly improved the response efficiency and effect.
Patent Information
- Application Number
- CN202421022172.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In the synthesis reaction of oxylephants, the existing interlayer reactor has poor refrigeration effect and severe heat loss, resulting in long refrigeration time, large power consumption, and poor uniformity of monomethylamine release, which affects the synthesis reaction effect.
A two -layer built -in dial reactor of oxygen -oxygen fruit is designed, which uses the carbon steel kettle body and the external cooling pipe of the semi -tube structure for external refrigeration. Set the brush plate on the top to achieve a uniform spraying of a methamine through the dums and drops of the drug.
Through internal and external refrigeration combination and the use of thermal insulation layer, the cooling effect of essence is significantly improved, the refrigeration time is shortened, the power consumption is reduced, and the design of a norerine is increased by the design of the plate and the dripping tube. Improve the efficiency and effect of synthetic reactions.
Smart Images
Figure CN222384817U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chemical equipment, in particular to an omethoate double-layer built-in disk-throwing reaction kettle. Background Art
[0002] The synthesis (amination) process in the production of oxydemeton-methyl is the key to the entire oxydemeton-methyl production, and directly affects the yield, content and other indicators of oxydemeton-methyl crude oil.
[0003] The synthesis reaction of omethoate is a violent exothermic reaction. The reactants are monomethylamine and ester, and the reaction product is crude omethoate. The reactor must be refrigerated during the synthesis reaction of omethoate.
[0004] The ester in the reactor is cooled to below -20°C, and then monomethylamine is added for synthesis reaction. The current reactor for omethoate synthesis reaction mainly adopts conventional sandwich reactor.
[0005] This kind of reactor has the problem of poor refrigeration effect and serious heat loss when refrigerating.
[0006] The time is long, the power consumption is large, and the monomethylamine is directly discharged into the reactor through the feeding pipe.
[0007] The uniformity of monomethylamine addition is poor, which affects the synthesis reaction effect and needs to be improved. Utility Model Content
[0008] In order to solve the above problems, the utility model provides an omethoate double-layer internally-mounted spinning tray reactor.
[0009] The technical scheme of the utility model is: an omethoate double-layer built-in spinning disk reactor, comprising a driving assembly installed in the middle of the top of a carbon steel reactor body, a stirring paddle and a spinning disk coaxially arranged in the reactor body, wherein the driving assembly comprises a motor bracket and a reduction motor; the upper end of the paddle rod of the stirring paddle is connected to the driving assembly, the paddle rod and the output shaft of the reduction motor are coaxially fixedly connected through a coupling, a shaft sleeve is arranged at the center of the spinning disk, the shaft sleeve is fixedly sleeved on the upper end of the paddle rod, a threaded hole is arranged on the shaft sleeve, a screw is inserted into the threaded hole to fix the shaft sleeve and the paddle rod, a medicine dropper is arranged on the upper part of the reactor body, a medicine dropping port at the inner end of the medicine dropper extends into the reactor body and close to the central part of the spinning disk, and the medicine dropping port of the medicine dropper is close to the upper surface of the spinning disk, the medicine dropper comprises a medicine dropper section fixedly connected to the reactor body and a conveying pipe section connected to the medicine dropper section through a flange; an outer side surface of the reactor body is densely wound with an external cooling pipe.
[0010] Preferably, the spinning disc is in the shape of a stainless steel disc, and a plurality of circular through holes are densely arranged on the surface of the spinning disc.
[0011] Preferably, an automatic control valve is provided on the tube body of the medicine dropper.
[0012] Preferably, the external cooling pipe is a half-pipe structure, and the inner end of the external cooling pipe is sealed and welded to the outer side surface of the kettle body.
[0013] Preferably, the lower end of the external cooling pipe is wound and extended to the central part of the arc-shaped bottom of the kettle body.
[0014] Preferably, the inner side wall of the kettle body is provided with a spiral inner cooling pipe, the two ends of the inner cooling pipe are close to the two ends of the kettle body, the inner cooling pipe and the outer cooling pipe are both stainless steel pipes, and the kettle body is made of carbon steel.
[0015] Preferably, the outer side surface of the kettle body is provided with an insulation layer covering the external cooling pipe, and the insulation layer is polyurethane foam and polystyrene board, and the insulation layer extends to the arc-shaped upper cover and arc-shaped bottom of the kettle body.
[0016] Preferably, a protective film is provided on the outer side of the thermal insulation layer, and anti-corrosion paint is applied on the outer side of the protective film.
[0017] Preferably, a bracket is provided at the center of the arc-shaped bottom of the kettle body, a discharge pipe is provided at the center of the arc-shaped bottom, a bearing with a seat is provided in the middle of the bracket, and the lower end of the paddle rod of the stirring paddle is installed in the bearing with a seat.
[0018] The beneficial technical effects of the utility model are:
[0019] (1) The reactor adopts a carbon steel reactor with good heat exchange effect, and a semi-tube structured external cooling pipe is arranged on the outside of the reactor to cool the reactor body, and a spiral internal cooling pipe is arranged on the inside to directly cool the liquid. The internal and external cooling combined with the external insulation layer and protective film greatly improve the cooling effect of the refined fat and improve the efficiency of the synthetic reaction.
[0020] (2) A brush plate covered with round through holes is provided on the paddle rod inside the reactor. The dropper drips the drug through the swing plate. The high-speed rotation of the brush plate can evenly spray monomethylamine from the edge of the brush plate and each round through hole into the reactor, thereby improving the effect and efficiency of the synthetic reaction. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the internal structure of the utility model;
[0022] Figure 2 yes Figure 1 AA section structural diagram;
[0023] Figure 3 yes Figure 1 Schematic diagram of the structure after the thermal insulation layer and protective film are set;
[0024] Figure 4 yes Figure 3 A partial enlarged view of .
[0025] In the figure, 11. kettle body, 12. driving assembly, 13. stirring paddle, 131. paddle rod, 14. spinning plate, 141. round through hole, 142. bushing, 15. dropper, 151. automatic control valve, 16. outer cooling pipe, 17. inner cooling pipe, 18. insulation layer, 19. protective film, 20. seat bearing, 21. bracket. DETAILED DESCRIPTION
[0026] Example 1, see the attached specification Figure 1 , 3 -4, a double-layer oxydemeton-methyl reactor with a built-in spinning disc 14, comprising a driving assembly 12 installed in the middle of the top of a carbon steel reactor body 11, and a stirring paddle 13 coaxially arranged in the reactor body 11, a bracket 21 is provided in the center of the arc-shaped bottom of the reactor body 11, and a bearing 20 is provided in the middle of the bracket 21. The lower end of a paddle rod 131 of the stirring paddle 13 is installed in the bearing 20, which provides a rotation support for the lower end of the stirring paddle 13 and improves its stirring and mixing stability. The upper end of the paddle rod 131 of the stirring paddle 13 is connected to the driving assembly 12, and the driving assembly 12 drives the stirring paddle 13 to rotate and stir the material liquid in the reactor body 11. The outer side surface of the reactor body 11 is densely wrapped with an external cooling pipe 16, and refrigeration is achieved by introducing a coolant into the external cooling pipe 16.
[0027] The outer cooling pipe 16 is a semi-tube structure, and the inner port of the outer cooling pipe 16 is seal-welded to the outer side surface of the kettle body 11. The outer cooling pipe 16 of this structure allows the coolant to directly contact the kettle body 11, and the refrigeration efficiency is high. The lower end of the outer cooling pipe 16 is wrapped and extended to the center of the arc-shaped bottom of the kettle body 11, so as to maximize the cooling area of the kettle body 11.
[0028] The inner wall of the kettle body 11 is provided with a spiral inner cooling pipe 17, and the two ends of the inner cooling pipe 17 are close to the two ends of the kettle body 11. The spiral inner cooling pipe 17 can directly contact with the feed liquid to directly cool it.
[0029] The outer side of the kettle body 11 is provided with an insulation layer 18 covering the external cooling pipe 16, and the insulation layer 18 extends to the arc-shaped upper cover and the arc-shaped bottom of the kettle body 11. The outer side of the insulation layer 18 is provided with a protective film 19. The insulation layer 18 and the protective film 19 are used to isolate the kettle body 11 from the heat exchange with the outside world, which is conducive to achieving rapid cooling and reducing energy consumption.
[0030] The reactor of this embodiment adopts a carbon steel reactor with good heat exchange effect, and a semi-tube structured outer cooling pipe 16 is arranged on the outside of the reactor to cool the reactor body, and a spiral inner cooling pipe 17 is arranged on the inside to directly cool the liquid. The internal and external cooling combined with the outer insulation layer 18 and the protective film 19 greatly improves the cooling effect of the refined fat and improves the efficiency of the synthetic reaction.
[0031] Example 2, see the attached specification Figure 1-2 In the first embodiment, a spinning tray 14 is provided in the kettle body 11, and a shaft sleeve 142 is provided in the center of the spinning tray 14. The shaft sleeve 142 is fixedly sleeved on the upper end of the paddle rod 131. A medicine dropper 15 is provided on the upper part of the kettle body 11. The medicine dropper 15 extends into the kettle body 11 and is close to the center of the spinning tray 14. Monomethylamine can gradually diffuse outward from the center of the spinning tray 14 to drip medicine, and the diffusion uniformity is good. The medicine dropper 15 The medicine dropper port is close to the upper surface of the spinning tray 14, avoiding the problem of diffusion of monomethylamine before entering the spinning tray 14, ensuring the effect of medicine dropping; the spinning tray 14 is disc-shaped, and a plurality of round through holes 141 are densely arranged on the surface of the spinning tray 14, and an automatic control valve 151 is provided on the tube body of the medicine dropper 15.
[0032] The working process of this embodiment is as follows: the driving assembly 12 is started to drive the paddle rod 131 of the stirring paddle 13 to rotate, and the spinning plate 14 rotates synchronously with the paddle rod 131, and the dropper 15 is opened through the automatic control valve 151, and the monomethylamine dropper 15 enters the center of the spinning plate 14 and gradually spreads outward from the center of the spinning plate 14, and is evenly sprayed into the reactor from the edge of the brush plate and each round through hole 141.
Claims
1. A double-layer omethoate built-in disk-spinning reactor, characterized in that: It includes a driving assembly installed in the middle of the top of a carbon steel kettle body, a stirring paddle and a spinning disc coaxially arranged in the kettle body; the upper end of the paddle rod of the stirring paddle is connected to the driving assembly, a shaft sleeve is provided in the center of the spinning disc, the shaft sleeve is fixedly sleeved on the upper end of the paddle rod, a medicine dropper is provided on the upper part of the kettle body, a medicine dropping port at the inner end of the medicine dropper extends into the kettle body and close to the center of the spinning disc, and the medicine dropping port of the medicine dropper is close to the upper surface of the spinning disc; the outer side surface of the kettle body is densely wound with an external cooling pipe.
2. The omethoate double-layer internally-mounted spinning tray reactor according to claim 1, characterized in that: The spinning disk is in the shape of a disk, and a plurality of round through holes are densely arranged on the surface of the spinning disk.
3. The omethoate double-layer internally-mounted spinning tray reactor according to claim 1 is characterized in that: An automatic control valve is arranged on the tube body of the medicine dropper.
4. The omethoate double-layer internally-mounted spinning tray reactor according to claim 1 is characterized in that: The outer cooling pipe is a half-pipe structure, and the inner end of the outer cooling pipe is sealed and welded to the outer side surface of the kettle body.
5. The omethoate double-layer internally-mounted spinning tray reactor according to claim 4 is characterized in that: The lower end of the outer cooling pipe is wound and extended to the central part of the arc-shaped bottom of the kettle body.
6. The omethoate double-layer internally-mounted spinning tray reactor according to claim 1, characterized in that: The inner side wall of the kettle body is provided with a spiral inner cooling pipe, and the two ends of the inner cooling pipe are close to the two ends of the kettle body.
7. The omethoate double-layer internally-mounted spinning tray reactor according to claim 1, characterized in that: The outer side surface of the kettle body is provided with a heat-insulating layer covering the outer cooling pipe, and the heat-insulating layer extends to the arc-shaped upper cover and the arc-shaped bottom of the kettle body.
8. The omethoate double-layer internally-mounted spinning tray reactor according to claim 7, characterized in that: A protective film is arranged on the outer side of the thermal insulation layer.
9. The omethoate double-layer internally-mounted spinning tray reactor according to claim 1, characterized in that: A bracket is arranged at the center of the arc-shaped bottom of the kettle body, a bearing with a seat is arranged in the middle of the bracket, and the lower end of the paddle rod of the stirring paddle is installed in the bearing with a seat.