CN113893566A - Preparation system and purification method of neopentyl glycol copolymer - Google Patents
Preparation system and purification method of neopentyl glycol copolymer Download PDFInfo
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- CN113893566A CN113893566A CN202111219594.1A CN202111219594A CN113893566A CN 113893566 A CN113893566 A CN 113893566A CN 202111219594 A CN202111219594 A CN 202111219594A CN 113893566 A CN113893566 A CN 113893566A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
Abstract
The invention discloses a preparation system and a purification method of a neopentyl glycol copolymer, which comprises a reaction kettle body, wherein a feeding hopper with an electromagnetic valve is fixedly connected to the right side of the top of the reaction kettle body, and the invention relates to the technical field of chemical equipment. This preparation system and purification method of neopentyl glycol copolymer, through from the top down set up the material mixing chamber in reation kettle, esterification chamber and distillation chamber, can carry out compounding preliminary treatment simultaneously, the process of esterifying and distilling extraction, the material also loops through in three cavity, and then can realize continuous processing, need not the difference processing of a batch, the effectual work efficiency that has improved, and the space conversion accessible stirring subassembly of material is controlled, need not to pour into another cavity again after discharging the material, high durability and convenient use, the transfer chamber in the middle of the while has the effect of time delay transition, can make the material slowly flow down along the inner wall simultaneously, and then guaranteed that the material after the esterification has enough time to discharge.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a preparation system and a purification method of a neopentyl glycol copolymer.
Background
Neopentyl glycol, white crystalline solid, odorless, hygroscopic. The method is mainly used for producing plasticizers, surfactants, insulating materials, printing ink, polymerization inhibitors, synthetic aviation lubricating oil additives and the like of unsaturated resins, oil-free alkyd resins, polyurethane foam plastics and elastomers; meanwhile, neopentyl glycol is an excellent solvent and can be used for selective separation of aromatic hydrocarbon and naphthenic hydrocarbon; the amino baking paint has good gloss retention and no yellowing; it can also be used as raw material for producing stabilizer and pesticide.
The esterification product of some current neopentyl glycol copolymers, need carry out processes such as raw materials mixture and esterification reaction in the course of working, and the material after the esterification inside still can contain partial impurity, the purification of modes such as distilling need be carried out, generally need different temperatures in the different processes, a process can only be carried out to equipment simultaneously, just can carry out next batch processing after the impurity after the reaction need discharge, work efficiency is low, and contain a large amount of heats in the steam that the distillation produced, even through the heat transfer, if can not use as early as possible, also can waste.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation system and a purification method of a neopentyl glycol copolymer, and solves the problems that a plurality of processes of esterification products of the neopentyl glycol copolymer are reacted in the same reaction kettle, the working efficiency is low, and steam generated by distillation contains a large amount of heat and is easy to waste.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a preparation system of neopentyl glycol copolymer, includes the reation kettle body, the right side fixedly connected with at reation kettle body top has the magazine of solenoid valve, the central fixedly connected with relief valve of reation kettle body bottom, and the equal fixedly connected with landing leg of four sides of reation kettle body bottom, the reation kettle body includes the shell, the inside from the top down fixed connection's of shell last arc board, well arc board and lower arc board separate into the pug chamber, transfer chamber, esterification chamber and distillation chamber in proper order, the top of going up arc board and lower arc board all is the spherical structure of hunch-up downwards, and goes up the arc board and all has seted up the hole that leaks in the center of arc board down.
The top of well arc board is the spherical surface structure of upwards arching, and the center fixedly connected with of well arc board makes progress bellied axle sleeve, a plurality of material leaking groove has evenly been seted up at the edge of well arc board, the inner wall of shell just is located material leaking groove and is connected with the reposition of redundant personnel lug under fixedly connected with.
The center of shell is provided with the stirring subassembly that runs through material mixing chamber, transfer chamber and esterification chamber, and the stirring subassembly can be realized rotating and going up and down in the shell inside, the top fixedly connected with drive stirring subassembly moving drive assembly of shell, the stirring subassembly is including the (mixing) shaft that runs through arc board and well arc board, the surface of (mixing) shaft just is located the equal fixedly connected with stirring frame in inside in material mixing chamber and esterification chamber, the surface of (mixing) shaft just is located the top in arc board and well arc board center material leakage hole and all rotates the cover and is equipped with the sprue that can shutoff material leakage hole, the surperficial fixedly connected with fixed cover of (mixing) shaft is established at the outside water conservancy diversion cover of axle sleeve.
The top fixedly connected with bottom of shell inner wall is to the arc crown plate that extends to the outside, and the bottom of arc crown plate leaves the interval with the lateral wall of shell, a plurality of inlet opening has evenly been seted up in the top of shell and the outside that is located arc crown plate top, the ring canal of intaking of inlet opening is covered to the top fixedly connected with of shell, and the top fixedly connected with water injection tube head of the ring canal of intaking.
Preferably, drive assembly includes the motor through motor cabinet fixed connection at reation kettle body top, the processing of the second half section of motor output shaft is the prismatic type, the outside slip cover of motor output shaft prism section is equipped with the prism cover, and the bottom of prism cover and the top fixed connection of (mixing) shaft, the top of the reation kettle body just is located the equal fixedly connected with electric putter in the left and right sides of prism cover, and fixedly connected with bracket between two electric putter's the top, the top of prism cover just is located the top fixedly connected with tray of bracket, and rotates through the steel ball between tray and the bracket and be connected.
Preferably, the outside of shell and the outside fixedly connected with radiation shield that is located material mixing chamber, transfer chamber and esterification chamber, fixedly connected with heat insulating ring between the centre of radiation shield internal surface and the surface of shell, and the inside packing of radiation shield has the conduction oil, the outside of shell and the upper and lower both sides that are located heat insulating ring all overlap and are equipped with spiral heating wire.
Preferably, an annular cavity is fixedly connected between the side surface of the outer surface of the shell and the bottom of the heat insulation sleeve, a communication hole for communicating the distillation cavity and the top of the inner cavity of the annular cavity is formed in the side wall of the shell, and a first liquid discharge valve is fixedly connected to the right side of the bottom of the annular cavity.
Preferably, the top of the annular cavity is fixedly connected with a plurality of distillation pipes in a penetrating manner, the top of the heat insulation sleeve is fixedly connected with a communicating annular pipe, the top end of each distillation pipe penetrates through the heat insulation sleeve and extends into the communicating annular pipe, the right side of the heat insulation sleeve is fixedly connected with a condensing mechanism, and a connecting pipe is communicated between the right side of the communicating annular pipe and the top of the condensing mechanism.
Preferably, the condensation mechanism includes heat transfer water tank, fixedly connected with Y type baffle between the inner wall about and the top of heat transfer water tank internal surface, the below of heat transfer water tank inner chamber and the below fixedly connected with that is located Y type baffle have a horizontal baffle, the top of both sides all communicates there is the heat transfer water swivel around the heat transfer water tank.
Preferably, the middle of the top of the heat exchange water tank is fixedly connected with a connector communicated with a connecting pipe, the two sides of the top fork of the Y-shaped partition plate are communicated with heat exchange pipes, the bottom ends of the heat exchange pipes penetrate through the lower portion of the horizontal partition plate, and the bottom of the right side of the heat exchange water tank is communicated with a second liquid discharge valve.
Preferably, the bottom fixedly connected with hot plate in distillation chamber, the hot plate includes the riser that bottom plate and top evenly distributed's multi-disc radiation type distribute, and the center of bottom plate has seted up the round hole, the outside fixedly connected with main control system of heat insulating sleeve, and all through wire electric connection between main control system and motor, hot plate, electric putter, spiral heating wire and the solenoid valve.
The invention also discloses a purification method of the preparation system of the neopentyl glycol copolymer, which comprises the following steps:
step one, heating and mixing materials: opening an electromagnetic valve on a feeding hopper, feeding the raw materials into the reaction kettle body through the feeding hopper, closing the electromagnetic valve after the addition is finished, starting a spiral heating wire on the upper side, heating the mixing cavity through heat conduction oil, simultaneously starting a motor, driving a stirring shaft and a stirring frame to rotate through a prismatic sleeve, and stirring the materials to fully mix the materials;
step two, material transfer and heating esterification: after heating and mixing for a period of time, starting an electric push rod pushing tray to enable a prismatic sleeve to drive a stirring shaft and a stirring frame to ascend, enabling two blocks on the stirring shaft to leave an upper arc plate and a lower arc plate, enabling materials in a mixing cavity to flow down to the middle arc plate from a middle material leakage hole and then diffuse outwards until the materials flow into an esterification cavity through a material leakage groove on the outer side of the mixing cavity, resetting the electric push rod to enable a stirring assembly to descend after partial materials are discharged, enabling the blocks to block the upper arc plate and the lower arc plate again, continuing stirring the residual materials in the mixing cavity, starting a lower side spiral heating wire to heat to a specified temperature, and further heating and esterifying the materials in the esterification cavity under the stirring of the stirring assembly;
step three, material transfer and heating distillation: after the esterification of the materials in the esterification cavity is finished, repeating the transfer step in the second step, lifting the stirring assembly to enable the materials in the esterification cavity to flow into the distillation cavity, and simultaneously, enabling the residual materials in the mixing cavity to slowly flow into the esterification cavity, and after the secondary transfer is finished, starting the heating plate to further heat up to distill the materials;
step four, condensing and collecting materials: after a required product is distilled into a gaseous state, the gaseous product overflows into the annular cavity through the communicating holes and then moves upwards through the distillation tube, when high-temperature steam passes through heat conduction oil, the internal heat distribution quantity of the high-temperature steam is dissipated, materials in an upper space are heated, the temperature of partial steam on the outer layer is reduced and condensed, the partial steam flows into the annular cavity along the distillation tube, the residual steam is gathered to the connecting pipe through the communicating annular tube and is discharged into the heat exchange water tank, the residual steam is dispersed into the two heat exchange tubes, meanwhile, cold water is discharged from the heat exchange water joint on the rear side, the cold water flows through the heat exchange water tank, the steam in the heat exchange tubes is condensed, then the water is discharged through the heat exchange water joint on the front side, and the condensed materials are discharged from a second liquid discharge valve opened at the bottom;
step five, follow-up work: after products accumulate in the annular cavity, opening a first discharge valve periodically to discharge, closing an electric appliance after the processing is finished, and opening the discharge valve to discharge impurities in the reaction kettle;
sixthly, cleaning the interior of the reaction kettle body: open the valve of the overhead water pipe of connecting of water injection pipe, inject the water purification in the ring canal to intaking, then the water purification passes through the inlet opening dispersion and flows to the below, and flow down along the shell inner wall through the arc crown plate water conservancy diversion, control electric putter at this moment lifts the stirring subassembly, and the starter motor drives the high-speed rotation of stirring subassembly and carries out the centrifugation, throw away its surperficial clout, the water purification flows through and flows down from the centre from last arc crown plate top, then flow down from the hourglass silo after washing the arc crown plate top, flow down along the shell inner wall after the reposition of redundant personnel lug dispersion, wash down the arc crown plate top again, then flow into the distillation intracavity and soak, open the blow-off valve discharge waste water at last.
Preferably, the preparation system processes viscous copolymer with poor fluidity, and each batch of materials is put into the cavity below twice, so that the materials flowing down from the mixing cavity are prevented from directly flowing into the distillation cavity.
Advantageous effects
The invention provides a preparation system and a purification method of a neopentyl glycol copolymer. Compared with the prior art, the method has the following beneficial effects:
(1) the neopentyl glycol copolymer preparation system and the neopentyl glycol copolymer purification method have the advantages that the mixing cavity, the esterification cavity and the distillation cavity are arranged in the reaction kettle from top to bottom, the processes of mixing pretreatment, esterification and distillation extraction can be simultaneously carried out, materials also sequentially pass through the three cavities, continuous processing can be further realized, batch processing is not required, the working efficiency is effectively improved, the space conversion of the materials can be controlled through the stirring assembly, the materials are not required to be discharged and then poured into another cavity, the use is convenient, meanwhile, the middle transfer cavity has the effect of time delay transition, the materials can slowly flow down along the inner wall, the esterified materials are ensured to be discharged in enough time, the unesterified materials are not easy to be directly discharged into the distillation cavity, a small amount of impurities after the easy processing are not required to be discharged, the next batch processing can be directly carried out, and the materials are intensively discharged after the multi-batch processing, the working efficiency is further improved.
(2) This preparation system and purification method of neopentyl glycol copolymer, through from the top down set up the compounding chamber in reation kettle, esterification chamber and distillation chamber, can carry out compounding preliminary treatment simultaneously, the process of esterification and distillation extraction, the material also loops through in three cavity, and then can realize continuous processing, need not the difference processing of a batch, the effectual work efficiency that has improved, and the space conversion accessible stirring subassembly of material is controlled, need not to pour into another cavity again after discharging the material, high durability and convenient use, the transfer chamber of centre has the effect of time delay transition simultaneously, can make the material slowly flow down along the inner wall simultaneously, and then guaranteed that the material after esterifying has enough time to discharge, and the difficult direct discharge of the material of not esterifying to the distillation chamber.
(3) This neopentyl glycol copolymer's preparation system and purification method, through last arc board, the camber structure setting of well arc board and lower arc board, when carrying out the drainage to the material, the cooperation is intake ring pipe and arc crown plate, still can be to being used for abluent water drainage together, make the water purification flow down along the inner wall in thoughtlessly expecting the chamber and esterifying the chamber, and from last arc board, well arc board and lower arc board top flow through, the cleaning performance is better, need not to use a large amount of water to soak the washing, also need not to unpack apart the washing, it is convenient and using water wisely to wash.
(4) This neopentyl glycol copolymer's preparation system and purification method, the distillation tube through with steam of discharging passes and is used for carrying out the radiation shield that heats for the mixing chamber and the chamber of esterifying, can conduct the partial heat of high temperature steam in the distillation tube to mixing chamber and the intracavity of esterifying in proper order through the conduction oil, partial heat has been retrieved, energy utilization is higher, and the efficiency of follow-up heat transfer has been improved, and even a small amount of steam in the distillation tube condenses because of the temperature reduction, also can only discharge the ring intracavity, the later stage can directly discharge the utilization, and can not get back to the distillation intracavity once more, high durability and convenient use.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a portion of the structure of the present invention;
FIG. 3 is a top view of the housing, middle arc plate and shunt tabs of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 2;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 2;
FIG. 6 is an enlarged view of a portion of the invention at C of FIG. 2;
FIG. 7 is a top view of a heating plate of the present invention;
FIG. 8 is a front view of the spiral heater wire and distillation tube of the present invention;
FIG. 9 is a side cross-sectional view of the condensing mechanism of the present invention;
FIG. 10 is a flow chart of the process of the present invention.
In the figure: 1. a feeding hopper; 2. a discharge valve; 3. a reaction kettle body; 31. a housing; 32. an upper arc plate; 33. a middle arc plate; 331. a shaft sleeve; 332. a material leaking groove; 34. a lower arc plate; 35. a shunting bump; 36. a stirring assembly; 361. a stirring shaft; 362. a stirring frame; 363. blocking; 364. a flow guide sleeve; 37. a drive assembly; 38. an arc-shaped ring plate; 39. a water inlet hole; 310. a water inlet ring pipe; 311. a water injection pipe head; 371. a motor base; 372. a motor; 373. a prismatic sleeve; 374. an electric push rod; 375. a bracket; 376. a tray; 4. a heat insulating sleeve; 5. a heat insulating ring; 6. a control host; 7. a spiral heating wire; 8. an annular cavity; 9. a communicating hole; 10. a first drain valve; 11. a distillation tube; 12. a communicating ring pipe; 13. a condensing mechanism; 131. a heat exchange water tank; 132. a Y-shaped partition plate; 133. a horizontal partition plate; 134. a heat exchange water joint; 135. a joint; 136. a heat exchange pipe; 137. a second drain valve; 14. a connecting pipe; 15. heating plates; 151. a base plate; 152. a riser.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a preparation system of neopentyl glycol copolymer comprises a reaction kettle body 3, a feeding hopper 1 with an electromagnetic valve is fixedly connected on the right side of the top of the reaction kettle body 3, a discharge valve 2 is fixedly connected at the center of the bottom of the reaction kettle body 3, and the four sides of the bottom of the reaction kettle body 3 are all fixedly connected with supporting legs, the outside of the heat insulation sleeve 4 is fixedly connected with a control host machine 6, and main control system 6 and motor 372, hot plate 15, electric putter 374, all pass through wire electric connection between spiral heating wire 7 and the solenoid valve, the reation kettle body 3 includes shell 31, the inside from the top down of shell 31 is fixed connection's last arc board 32 in proper order, well arc board 33 and lower arc board 34 separate into the thoughtlessly material chamber, the transfer chamber, esterification chamber and distillation chamber, the top of going up arc board 32 and lower arc board 34 all is the spherical surface structure of hunch-up downwards, and the centre of going up arc board 32 and lower arc board 34 has all been seted up the hole of leaking.
The top of well arc board 33 is the spherical surface structure of upwards hunch-up, and the center fixedly connected with of well arc board 33 upwards bellied axle sleeve 331, and a plurality of leaks silo 332 has evenly been seted up at the edge of well arc board 33, and the inner wall of shell 31 just is located and leaks silo 332 under fixedly connected with reposition of redundant personnel lug 35, and reposition of redundant personnel lug 35 can make the water that leaks silo 332 and flow down disperse to the next door again, and then makes the abundant inner wall that erodees of water.
The center of shell 31 is provided with stirring subassembly 36 that runs through the mixing chamber, the transfer chamber and the chamber of esterifying, and stirring subassembly 36 can realize rotating and going up and down in shell 31 is inside, the top fixedly connected with of shell 31 stirs subassembly 36 moving drive assembly 37, stirring subassembly 36 includes the (mixing) shaft 361 that runs through upper arc board 32 and well arc board 33, the equal fixedly connected with stirring frame 362 of the inside that is located mixing chamber and the chamber of esterifying on the surface of (mixing) shaft 361, the surface of (mixing) shaft 361 and the top that is located upper arc board 32 and well arc board 33 center weeping hole all rotate the cover and are equipped with sprue 363 that can shutoff weeping hole, be provided with the sealing washer between sprue 363 and (mixing) shaft 361, the fixed surface of (mixing) shaft 361 is connected with the water conservancy diversion cover 364 that fixed cover is established in the outside of axle sleeve 331, through from top to bottom setting up in reation kettle, the chamber of esterifying and the chamber of esterifying, can carry out compounding preliminary treatment simultaneously, The process of esterifying and distilling extraction, the material also loops through in three cavity, and then can realize continuous processing, need not the processing respectively of a batch, the effectual work efficiency that has improved, and the space conversion accessible stirring subassembly 36 of material is controlled, need not to pour into another cavity after discharging the material again, high durability and convenient use, the transfer chamber in the middle of simultaneously has the effect of time delay transition, can make the material slowly flow down along the inner wall simultaneously, and then guaranteed that the material after the esterification has enough time to discharge, and the difficult direct discharge of material to the distillation chamber of not esterifying, and a small amount of impurity after the workable need not to discharge, can directly carry out next batch processing, processing in batches after a lot of, concentrated discharge can, further improved work efficiency.
The top of the inner wall of the shell 31 is fixedly connected with an arc-shaped ring plate 38 with the bottom extending outwards, the arc-shaped ring plate 38 can enable water flowing down from the water inlet holes 39 to be dispersed and flow down along the inner wall of the shell 31, a distance is reserved between the bottom of the arc-shaped ring plate 38 and the side wall of the shell 31, a plurality of water inlet holes 39 are uniformly formed in the top of the shell 31 and the outer side of the top of the arc-shaped ring plate 38, the top of the shell 31 is fixedly connected with a water inlet ring pipe 310 covering the water inlet holes 39, the top of the water inlet ring pipe 310 is fixedly connected with a water injection pipe head 311, and through the arc-shaped structure arrangement of the upper arc plate 32, the middle arc plate 33 and the lower arc plate 34, when the materials are drained, the water inlet ring pipe 310 and the arc-shaped ring plate 38 are matched, and the cleaned water can be drained together, so that the inner walls of the water cleaning mixing cavity and the esterification cavity flow down and flow through the tops of the upper arc plate 32, the middle arc plate 33 and the lower arc plate 34, the cleaning effect is better, need not to use a large amount of water to soak the washing, also need not to unpack apart the washing, and the washing is convenient and using water wisely.
Referring to fig. 2 and 6, the driving assembly 37 includes a motor 372 fixedly connected to the top of the reaction kettle body 3 through a motor base 371, the lower half section of the output shaft of the motor 372 is processed into a prism shape, a prism sleeve 373 is slidably sleeved outside the prism section of the output shaft of the motor 372, the bottom end of the prism sleeve 373 is fixedly connected to the top end of the stirring shaft 361, electric push rods 374 are fixedly connected to the top of the reaction kettle body 3 and located on the left and right sides of the prism sleeve 373, a bracket 375 is fixedly connected between the top ends of the two electric push rods 374, a tray 376 is fixedly connected to the top end of the prism sleeve 373 and located on the top of the bracket 375, and the tray 376 is rotatably connected to the bracket 375 through steel balls.
Referring to fig. 2 and 7, the heating plate 15 is fixedly connected to the bottom of the distillation chamber, the heating plate 15 includes a bottom plate 151 and a plurality of radial risers 152 uniformly distributed on the top of the bottom plate 151, and a circular hole is formed in the center of the bottom plate 151, the risers 152 are added to the heating plate 15, so that the surface area can be increased, the heating efficiency can be improved, and the bottoms of the heating plate 15 and the distillation chamber are both in a shallow hopper-shaped structure with a low center and a high edge.
Referring to fig. 2 and 8, a heat insulating sleeve 4 is fixedly connected to the outside of the housing 31 and located outside the mixing chamber, the transferring chamber and the esterification chamber, a heat insulating ring 5 is fixedly connected between the middle of the inner surface of the heat insulating sleeve 4 and the outer surface of the housing 31, heat conducting oil is filled in the heat insulating sleeve 4, spiral heating wires 7 are sleeved on the outside of the housing 31 and located on the upper and lower sides of the heat insulating ring 5, the heat conducting oil can be uniformly heated by matching with the spiral heating wires 7, a ring chamber 8 is fixedly connected between the side surface of the outer surface of the housing 31 and the bottom of the heat insulating sleeve 4, a communication hole 9 communicating the top of the distillation chamber and the top of the inner chamber of the ring chamber 8 is formed in the side wall of the housing 31, a first drain valve 10 is fixedly connected to the right side of the bottom of the ring chamber 8, a plurality of distillation pipes 11 are fixedly connected to the top of the ring chamber 8, a communication ring pipe 12 is fixedly connected to the top of the heat insulating sleeve 4, and extends to the communication ring 12, the right side fixedly connected with condensation mechanism 13 of radiation shield 4, and the intercommunication has connecting pipe 14 between the right side of intercommunication ring canal 12 and the top of condensation mechanism 13, pass through the radiation shield 4 that is used for heating for the mixing chamber and the chamber of esterifying through the distillation tube 11 with exhaust steam, can conduct the partial heat of high temperature steam in the distillation tube 11 to mixing chamber and the intracavity of esterifying in proper order through the conduction oil, partial heat has been retrieved, energy utilization is higher, and the efficiency of follow-up heat transfer has been improved, and even a small amount of steam in the distillation tube 11 condenses because of the temperature reduction, also only can arrange into ring chamber 8 in, later stage direct discharge utilizes, and can not get back to the distillation intracavity once more, high durability and convenient use.
Referring to fig. 2 and 9, the condensing mechanism 13 includes a heat exchange water tank 131, a Y-shaped partition 132 is fixedly connected between the top of the inner surface of the heat exchange water tank 131 and the left and right inner walls, a horizontal partition 133 is fixedly connected below the inner cavity of the heat exchange water tank 131 and below the Y-shaped partition 132, heat exchange water connectors 134 are respectively connected to the top of the front and rear sides of the heat exchange water tank 131, one heat exchange water connector 134 is responsible for water inlet and one is responsible for water outlet, a connector 135 is fixedly connected to the middle of the top of the heat exchange water tank 131 and is connected to the connecting pipe 14, heat exchange pipes 136 are respectively connected to the two sides of the top of the Y-shaped partition 132, the bottom ends of the heat exchange pipes 136 penetrate to the lower side of the horizontal partition 133, a second drain valve 137 is connected to the bottom of the right side of the heat exchange water tank 131, steam discharged from the distillation pipe 11 can be condensed more efficiently by dividing the steam into two parts, and condensed water is guided by the Y-shaped partition 132, can be fully contacted with the heat exchange pipe 136, and ensures the heat exchange efficiency.
The invention also discloses a purification method of the preparation system of the neopentyl glycol copolymer, which comprises the following steps:
step one, heating and mixing materials: opening an electromagnetic valve on a feeding hopper 1, feeding the raw materials into a reaction kettle body 3 through the feeding hopper 1, closing the electromagnetic valve after the addition is finished, starting a spiral heating wire 7 on the upper side, heating a mixing cavity through heat conduction oil, simultaneously starting a motor 372, driving a stirring shaft 361 and a stirring frame 362 to rotate through a prism sleeve 373, and stirring the materials to fully mix the materials;
step two, material transfer and heating esterification: after heating and mixing for a period of time, starting an electric push rod 374 to push up a tray 376, so that a prism sleeve 373 drives a stirring shaft 361 and a stirring frame 362 to ascend, at the moment, two blocking blocks 363 on the stirring shaft 361 leave an upper arc plate 32 and a lower arc plate 34, materials in a mixing cavity flow down to the middle arc plate 33 from a middle material leakage hole and then diffuse outwards until the materials flow into an esterification cavity through a material leakage groove 332 on the outer side of the mixing cavity, after part of the materials are discharged, resetting the electric push rod 374 to enable a stirring assembly 36 to descend, blocking the blocking blocks 363 blocking the upper arc plate 32 and the lower arc plate 34 again, continuously stirring the residual materials in the mixing cavity, starting a lower spiral heating wire 7 to heat to a specified temperature, and further heating and esterifying the materials in the esterification cavity under the stirring of the stirring assembly 36;
step three, material transfer and heating distillation: after the esterification of the materials in the esterification cavity is finished, repeating the transfer step in the second step, lifting the stirring assembly 36 to enable the materials in the esterification cavity to flow into the distillation cavity, and simultaneously, enabling the residual materials in the mixing cavity to slowly flow into the esterification cavity, and after the secondary transfer is finished, starting the heating plate 15 to further heat up to distill the materials;
step four, condensing and collecting materials: after a required product is distilled into a gas state, the gas overflows into the annular cavity 8 through the communicating hole 9, then moves upwards through the distillation pipe 11, when high-temperature steam passes through heat conduction oil, the high-temperature steam dissipates the heat distributed in the high-temperature steam to heat materials in an upper space, the temperature of the steam on the outer layer is reduced and condensed, the steam flows into the annular cavity 8 along the distillation pipe 11, the residual steam is gathered to the connecting pipe 14 through the communicating ring pipe 12 and is discharged into the heat exchange water tank 131 and is dispersed into the two heat exchange pipes 136, meanwhile, cold water is discharged into the rear side heat exchange water joint 134 and flows through the heat exchange water tank 131 to condense the steam in the heat exchange pipes 136, then the water is discharged through the front side heat exchange water joint 134, and the condensed material is discharged from a second liquid discharge valve 137 opened at the bottom;
step five, follow-up work: after products accumulate in the annular cavity 8, opening the first liquid discharge valve 10 periodically to discharge, closing the electric appliance after the processing is finished, and opening the discharge valve 2 to discharge impurities in the reaction kettle body 3;
sixthly, cleaning the inside of the reaction kettle body 3: the valve of the water pipe connected to the water injection pipe head 311 is opened, purified water is injected into the water inlet circular pipe 310, then the purified water dispersedly flows to the lower part through the water inlet hole 39 and flows down along the inner wall of the shell 31 through the diversion of the arc-shaped annular plate 38, at the moment, the electric push rod 374 is controlled to lift the stirring component 36, the motor 372 is started to drive the stirring component 36 to rotate at a high speed for centrifugation, surplus materials on the surface of the purified water are thrown out, the purified water flows through the top of the upper arc plate 32 and flows down from the middle part, then flows down from the material leakage groove 332 after washing the top of the middle arc plate 33, flows down along the inner wall of the shell 31 after being dispersed by the diversion bump 35, then the top of the lower arc plate 34 is washed, then flows into the distillation cavity for soaking, and finally the discharge valve 2 is opened to discharge waste water.
The preparation system processes viscous copolymer with poor fluidity, and each batch of materials are put into the cavity below twice, so that the materials flowing down from the mixing cavity are prevented from directly flowing into the distillation cavity.
Meanwhile, the contents which are not described in detail in the specification belong to the prior art which is known by the person skilled in the art, and the model parameters of each electric appliance are not particularly limited, and conventional equipment can be used.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a preparation system of neopentyl glycol copolymer, includes the reation kettle body (3), the right side fixedly connected with at reation kettle body (3) top has magazine (1) of solenoid valve, the central fixedly connected with blow-off valve (2) of the reation kettle body (3) bottom, and the equal fixedly connected with landing leg of four sides of the reation kettle body (3) bottom, its characterized in that: the reaction kettle body (3) comprises a shell (31), an upper arc plate (32), a middle arc plate (33) and a lower arc plate (34) which are fixedly connected with one another from top to bottom in the shell (31) are divided into a mixing cavity, a transfer cavity, an esterification cavity and a distillation cavity, the tops of the upper arc plate (32) and the lower arc plate (34) are of spherical structures which are arched downwards, and material leakage holes are formed in the centers of the upper arc plate (32) and the lower arc plate (34);
the top of the middle arc plate (33) is of an upwards arched spherical structure, the center of the middle arc plate (33) is fixedly connected with an upwards-protruded shaft sleeve (331), the edge of the middle arc plate (33) is uniformly provided with a plurality of material leaking grooves (332), and the inner wall of the shell (31) and the position right below the material leaking grooves (332) are fixedly connected with a shunting bump (35);
the center of the shell (31) is provided with a stirring component (36) which penetrates through the mixing cavity, the transit cavity and the esterification cavity, the stirring component (36) can rotate and lift in the shell (31), the top of the shell (31) is fixedly connected with a driving component (37) for driving the stirring component (36) to run, the stirring component (36) comprises a stirring shaft (361) which penetrates through the upper arc plate (32) and the middle arc plate (33), the surface of the stirring shaft (361) and the inner parts of the mixing cavity and the esterification cavity are both fixedly connected with stirring frames (362), the surface of the stirring shaft (361) and the top of the central material leakage hole of the upper arc plate (32) and the middle arc plate (33) are respectively rotatably sleeved with a blocking block (363) capable of blocking the material leakage hole, a flow guide sleeve (364) fixedly sleeved outside the shaft sleeve (331) is fixedly connected to the surface of the stirring shaft (361);
the top fixedly connected with bottom of shell (31) inner wall is to arc crown plate (38) of outside extension, and the bottom of arc crown plate (38) and the lateral wall of shell (31) leave the interval, a plurality of inlet opening (39) have evenly been seted up in the top of shell (31) and the outside that is located arc crown plate (38) top, the top fixedly connected with of shell (31) covers into water ring pipe (310) of inlet opening (39), and the top fixedly connected with water injection tube head (311) of into water ring pipe (310).
2. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: drive assembly (37) include motor (372) at reation kettle body (3) top through motor cabinet (371) fixed connection, the processing of the lower half section of motor (372) output shaft is the prism type, the outside slip cover of motor (372) output shaft prism section is equipped with prism cover (373), and the bottom of prism cover (373) and the top fixed connection of (mixing) shaft (361), the top of reation kettle body (3) just is located the equal fixedly connected with electric putter (374) in the left and right sides of prism cover (373), and fixedly connected with bracket (375) between the top of two electric putter (374), the top of prism cover (373) just is located the top fixedly connected with tray (376) of bracket (375), and rotates through the steel ball between tray (376) and bracket (375) to be connected.
3. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: the utility model discloses a heat insulation device, including shell (31), fixed connection has heat insulating sleeve (4) in the outside of shell (31) and the outside fixedly connected with heat insulating sleeve (4) that are located the material mixing chamber, transfer chamber and esterification chamber, fixedly connected with heat insulating ring (5) between the centre of heat insulating sleeve (4) internal surface and the surface of shell (31), and the inside packing of heat insulating sleeve (4) has the conduction oil, the outside of shell (31) and the upper and lower both sides that are located heat insulating ring (5) all overlap and are equipped with spiral heating wire (7).
4. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: fixedly connected with ring chamber (8) between the side of shell (31) surface and the bottom of radiation shield (4), intercommunication distillation chamber and the intercommunicating pore (9) at ring chamber (8) inner chamber top are seted up to the lateral wall inside of shell (31), the first drain valve (10) of right side fixedly connected with of ring chamber (8) bottom.
5. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: the top of ring chamber (8) runs through a plurality of distillation tubes (11) of fixedly connected with, the top fixedly connected with intercommunication ring canal (12) of radiation shield sleeve (4), the inside that radiation shield sleeve (4) and extend to intercommunication ring canal (12) is run through on the top of distillation tube (11), the right side fixedly connected with condensation mechanism (13) of radiation shield sleeve (4), and the intercommunication has connecting pipe (14) between the right side of intercommunication ring canal (12) and the top of condensation mechanism (13).
6. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: condensation mechanism (13) are including heat transfer water tank (131), fixedly connected with Y type baffle (132) between the top of heat transfer water tank (131) internal surface and the left and right sides inner wall, below of heat transfer water tank (131) inner chamber and the below fixed connection that is located Y type baffle (132) have horizontal baffle (133), the top of both sides all communicates heat transfer water swivel (134) around heat transfer water tank (131).
7. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: the middle of the top of the heat exchange water tank (131) is fixedly connected with a connector (135) communicated with a connecting pipe (14), the two sides of the top fork of the Y-shaped partition plate (132) are communicated with heat exchange pipes (136), the bottom ends of the heat exchange pipes (136) penetrate through the lower portion of the horizontal partition plate (133), and the bottom of the right side of the heat exchange water tank (131) is communicated with a second liquid discharge valve (137).
8. The system for preparing a neopentyl glycol copolymer as recited in claim 1, wherein: distillation chamber's bottom fixedly connected with hot plate (15), hot plate (15) include riser (152) that bottom plate (151) and top evenly distributed's multi-disc radiation type distribute, and the round hole has been seted up at the center of bottom plate (151), outside fixedly connected with main control system (6) of heat insulating sleeve (4), and all through wire electric connection between main control system (6) and motor (372), hot plate (15), electric putter (374), spiral heating wire (7) and the solenoid valve.
9. A purification method of a neopentyl glycol copolymer production system, characterized in that: the method specifically comprises the following steps:
step one, heating and mixing materials: opening an electromagnetic valve on a feeding hopper (1), feeding the raw materials into a reaction kettle body (3) through the feeding hopper (1), closing the electromagnetic valve after the addition is finished, starting a spiral heating wire (7) on the upper side, heating a mixing cavity through heat conduction oil, simultaneously starting a motor (372), driving a stirring shaft (361) and a stirring frame (362) to rotate through a prism sleeve (373), and stirring the materials to fully mix the materials;
step two, material transfer and heating esterification: after heating and mixing for a period of time, starting an electric push rod (374) to push up a tray (376), enabling a prism sleeve (373) to drive a stirring shaft (361) and a stirring frame (362) to rise, enabling two blocking blocks (363) on the stirring shaft (361) to leave an upper arc plate (32) and a lower arc plate (34), enabling materials in a mixing cavity to flow down to the middle arc plate (33) from a middle leakage hole and then diffuse outwards until the materials flow into an esterification cavity through a leakage groove (332) on the outer side of the mixing cavity, resetting the electric push rod (374) to enable a stirring assembly (36) to descend, enabling the blocking blocks (363) to block the upper arc plate (32) and the lower arc plate (34) again, continuing stirring residual materials in the mixing cavity, starting a lower spiral heating wire (7) to heat to a specified temperature, and further heating and esterifying the materials in the esterification cavity under the stirring of the stirring assembly (36);
step three, material transfer and heating distillation: after the esterification of the materials in the esterification cavity is finished, repeating the transfer step in the second step, lifting the stirring assembly (36) to enable the materials in the esterification cavity to flow into the distillation cavity, and simultaneously, enabling the residual materials in the mixing cavity to slowly flow into the esterification cavity, and after the secondary transfer is finished, starting the heating plate (15) to further raise the temperature to distill the materials;
step four, condensing and collecting materials: after a required product is distilled into a gas state, the gas is overflowed and scattered into the annular cavity (8) through the communicating hole (9), then the gas moves upwards through the distillation pipe (11), when high-temperature steam passes through heat conduction oil, the internal heat distribution of the high-temperature steam is dissipated, materials in an upper space are heated, the temperature of outer layer part of steam is reduced and condensed, the steam flows into the annular cavity (8) along the distillation pipe (11), the residual steam is gathered to the connecting pipe (14) through the communicating ring pipe (12) and is discharged into the heat exchange water tank (131) and is dispersed into the two heat exchange pipes (136), meanwhile, cold water is discharged from the rear side heat exchange water joint (134), the cold water flows through the heat exchange water tank (131), the steam in the heat exchange pipes (136) is condensed, then the water is discharged through the front side heat exchange water joint (134), and the condensed material is discharged from a second liquid discharge valve (137) with an open bottom;
step five, follow-up work: after products accumulate in the annular cavity (8), opening a first liquid discharge valve (10) periodically to discharge, closing an electric appliance after processing is finished, and opening a discharge valve (2) to discharge impurities in the reaction kettle body (3);
sixthly, cleaning the inside of the reaction kettle body (3): the method comprises the steps of opening a valve of a water pipe connected to a water injection pipe head (311), injecting purified water into a water inlet ring pipe (310), enabling the purified water to dispersedly flow to the lower part through a water inlet hole (39), guiding the purified water through an arc ring plate (38) and flowing down along the inner wall of a shell (31), controlling an electric push rod (374) to lift a stirring assembly (36), starting a motor (372) to drive the stirring assembly (36) to rotate at a high speed for centrifugation, throwing away surplus materials on the surface of the stirring assembly, enabling the purified water to flow through the top of an upper arc plate (32) and flow down from the middle part of the stirring assembly, flushing the top of a middle arc plate (33) and then flowing down from a material leakage groove (332), dispersing the purified water through a shunting lug (35) and flowing down along the inner wall of the shell (31), flushing the top of a lower arc plate (34), then flowing into a distillation cavity for soaking, and finally opening a discharge valve (2) to discharge waste water.
10. The purification method of a system for producing a neopentyl glycol copolymer as recited in claim 9, wherein: the preparation system processes viscous copolymer with poor fluidity, and each batch of materials are put into the cavity below twice, so that the materials flowing down from the mixing cavity are prevented from directly flowing into the distillation cavity.
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