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CN-224221357-U - Kettle for dehydration and alcohol removal of dichloroethane

CN224221357UCN 224221357 UCN224221357 UCN 224221357UCN-224221357-U

Abstract

The utility model provides a kettle for dehydration and alcohol removal of dichloroethane, which comprises a reaction kettle, wherein the reaction kettle comprises a kettle body, a stirring mechanism is fixedly arranged at the top of the kettle body, a stirring shaft is fixedly connected with a transmission mechanism through a supporting rod, a mixing mechanism is fixedly connected with the bottom of the transmission mechanism, the mixing mechanism comprises a connecting seat, a stirring rod and a hydraulic cylinder, the connecting seat is fixedly connected with the bottom of a surrounding ring, the top end of the stirring rod is rotationally connected with the inside of the connecting seat, and a plurality of rod bodies which are uniformly distributed are arranged on the stirring rod. According to the utility model, the stirring mechanism and the mixing mechanism are arranged in the kettle body to be matched, so that the full mixing can be realized, the mixing mechanism can be retracted after stirring, the mixing efficiency can be improved, the influence on subsequent standing layering is avoided, the dichloroethane production period can be effectively shortened, the production efficiency is improved, the alcohol removal treatment is carried out on the dichloroethane recycling solvent by water, the yield of the acylation reaction is better stabilized and improved, and the solvent scrapping consumption and the production cost are reduced.

Inventors

  • XU FUQIAN
  • JIANG YI

Assignees

  • 大连九信作物科学有限公司

Dates

Publication Date
20260512
Application Date
20260326

Claims (10)

  1. 1. The utility model provides a cauldron for dehydration and dealcoholization of dichloroethane, includes reation kettle (100), reation kettle (100) includes cauldron body (11), cauldron body (11) surface mounting has shell (111), a serial communication port, cauldron body (11) top fixed mounting has rabbling mechanism, rabbling mechanism includes (mixing) shaft (212) and stirring rake (213), (mixing) shaft (212) are connected with cauldron body (11) top rotation, stirring rake (213) are connected with (mixing) shaft (212) bottom fixed connection, stirring rake (213) are arc structure and are located cauldron body (11) bottom, a plurality of evenly distributed's through-holes (214) have been seted up on stirring rake (213); The stirring shaft (212) is fixedly connected with a transmission mechanism through a supporting rod (215), the bottom of the transmission mechanism is fixedly connected with a mixing mechanism, the mixing mechanism comprises a connecting seat (312), a stirring rod (313) and a hydraulic cylinder (314), the connecting seat (312) is fixedly connected with the bottom of the enclosure (31), the connecting seat (312) is positioned on the inner side of the limit ring (311), the top end of the stirring rod (313) is rotationally connected with the connecting seat (312), and a plurality of rod bodies which are uniformly distributed are arranged on the stirring rod (313).
  2. 2. The kettle for dehydrating and removing ethylene dichloride according to claim 1, wherein two sealed cavities are formed between the outer shell (111) and the kettle body (11), a first heater (112) and a second heater (113) with spiral structures are fixedly arranged on the outer surface of the kettle body (11), the first heater (112) and the second heater (113) are respectively positioned in the two separated cavities, and the first heater (112) and the second heater (113) are both positioned in the outer shell (111).
  3. 3. The kettle for dehydrating and removing alcohol from dichloroethane according to claim 1, wherein a plurality of evenly distributed supporting legs (114) are fixedly arranged on the outer wall of the housing (111), the surfaces of the kettle body (11) and the housing (111) are fixedly sleeved with an insulating layer (115), and the supporting legs (114) penetrate through the insulating layer (115).
  4. 4. The kettle for the dehydration and the dealcoholization of dichloroethane according to claim 1, characterized in that the top of the kettle body (11) is fixedly connected with an exhaust pipe (116) and an input pipe (117) respectively, the bottom of the kettle body (11) is fixedly connected with an output pipe (118), a conveying pipe (119) is fixedly arranged on the side wall of the kettle body (11), and the exhaust pipe (116), the input pipe (117), the output pipe (118) and the conveying pipe (119) are all in penetrating connection with the heat insulation layer (115).
  5. 5. The kettle for dehydrating and removing ethylene dichloride according to claim 1, wherein a sleeve (21) is fixedly arranged at the top of the kettle body (11), the top of the sleeve (21) is fixedly connected with a driving motor (211), and the output end of the driving motor (211) is fixedly connected with a stirring shaft (212) through a coupler.
  6. 6. The kettle for dehydrating and removing ethylene dichloride according to claim 1, wherein the transmission mechanism comprises a surrounding ring (31) and a limiting ring (311), the inner wall of the surrounding ring (31) is fixedly connected with the stirring shaft (212) through two supporting rods (215), the number of the limiting rings (311) is two, the two limiting rings (311) are correspondingly arranged at the upper end and the lower end of the surrounding ring (31), the limiting ring (311) is fixedly connected with the inner wall of the kettle body (11), and the surrounding ring (31) is rotationally connected with the inner part of the kettle body (11).
  7. 7. The tank for the dehydration and alcohol removal of dichloroethane according to claim 1, characterized in that a mixing mechanism is fixedly installed at the bottom of the enclosure (31), and the stirring rod (313) has a bent structure.
  8. 8. The kettle for dehydrating and removing ethylene dichloride according to claim 1, wherein the hydraulic cylinder (314) is fixedly connected with the bottom of the limit ring (311), the telescopic end of the hydraulic cylinder (314) is fixedly connected with the end head (315), the end head (315) is of a convex structure, the bottom of the limit ring (311) is provided with the movable ring (316), the guide groove of the T-shaped structure is formed in the movable ring (316), the end head (315) is in sliding connection with the guide groove of the movable ring (316), and the inner side of the movable ring (316) is movably connected with the stirring rod (313) through the connecting rod (317).
  9. 9. The tank for the dehydration and dealcoholization of dichloroethane according to claim 1, characterized in that the connection seats (312) are disposed on both sides of the top of the stirring rod (313).
  10. 10. The tank for the dehydration and dealcoholization of dichloroethane according to claim 1, characterized in that the number of the hydraulic cylinders (314) is plural, and the plurality of the hydraulic cylinders (314) are uniformly distributed to the bottom of the limit collar (311).

Description

Kettle for dehydration and alcohol removal of dichloroethane Technical Field The utility model relates to a kettle for dehydration and alcohol removal of dichloroethane, belonging to the technical field of chemical production operation synthesis process. Background The fine chemical synthetic reaction process can use a plurality of relevant solvents which can meet the production requirement and the optimal requirement of the process, and dichloroethane is the key solvent for the ethyl 2-hydroxy-2- (4-phenoxyphenyl) propionate product. In the acylation reaction production, the main solvent is dichloroethane, the main content of the dichloroethane is reduced after one period of reaction period, and the enrichment of other fusel is increased, so that the acylation reaction yield is affected to be gradually reduced. The ethylene dichloride solvent needs to be periodically replaced by about 30 percent to ensure the reaction yield, so that the unit consumption is high. And in the water washing layering unit, because of enrichment of fusel, emulsification occurs, so that layering is difficult and the production period of water washing is prolonged. In the post-treatment dichloroethane recovery dehydration section, the time and period of distillation dehydration are gradually prolonged due to the influence of the fusel, the recovery rate and efficiency of the dichloroethane are gradually reduced, and the related energy consumption of electricity, steam, circulating water, cold salt and the like is also increased. Disclosure of utility model The utility model aims to solve the technical problems set forth above and provides a kettle for dehydration and alcohol removal of dichloroethane. The utility model solves the technical problems by the following technical proposal: The utility model provides a kettle for dehydration and alcohol removal of dichloroethane, which comprises a reaction kettle, wherein the reaction kettle comprises a kettle body, a shell is fixedly arranged on the surface of the kettle body, a stirring mechanism is fixedly arranged at the top of the kettle body, the stirring mechanism comprises a stirring shaft and a stirring paddle, the stirring shaft is rotationally connected with the top of the kettle body, the stirring paddle is fixedly connected with the bottom of the stirring shaft, the stirring paddle is of an arc-shaped structure and is positioned at the bottom of the kettle body, and a plurality of uniformly distributed through holes are formed in the stirring paddle; The stirring shaft is fixedly connected with the transmission mechanism through a supporting rod, the bottom of the transmission mechanism is fixedly connected with the mixing mechanism, the mixing mechanism comprises a connecting seat, a stirring rod and a hydraulic cylinder, the connecting seat is fixedly connected with the bottom of the enclosure, the connecting seat is positioned on the inner side of the limit ring, the top end of the stirring rod is rotationally connected with the inside of the connecting seat, and a plurality of rod bodies which are uniformly distributed are arranged on the stirring rod. In this technical scheme, be formed with two sealed cavitys between shell and the cauldron body, cauldron external surface fixed mounting has helical structure's first heater and second heater, first heater and second heater are located two divided cavitys respectively, first heater and second heater all are located the shell. In this technical scheme, shell outer wall fixed mounting has a plurality of evenly distributed's stabilizer blade, the heat preservation has all been fixedly cup jointed on the cauldron body and shell surface, the stabilizer blade runs through the heat preservation. In this technical scheme, cauldron body top respectively with blast pipe and input tube fixed connection, cauldron body bottom and output tube fixed connection, cauldron body lateral wall fixed mounting has the conveyer pipe, just blast pipe, input tube, output tube and conveyer pipe all run through with the heat preservation and be connected. In this technical scheme, cauldron body top fixed mounting has the sleeve pipe, sleeve pipe top and driving motor fixed connection, and driving motor output passes through shaft coupling and (mixing) shaft fixed connection. In this technical scheme, drive mechanism includes enclosure and spacing collar, enclosure inner wall is through two branches and (mixing) shaft fixed connection, the quantity of spacing collar is two, and two spacing collars correspond the upper and lower both ends that set up at the enclosure, spacing collar and the internal wall fixed connection of cauldron, just the enclosure is connected with the internal rotation of cauldron. In the technical scheme, a mixing mechanism is fixedly arranged at the bottom of the enclosure, and the stirring rod is of a bending structure. In this technical scheme, pneumatic cylinder and spacing collar bottom fixed connection, the flexible end