CN116371295A - Automatic vacuumizing polyester reaction equipment for chemical industry - Google Patents
Automatic vacuumizing polyester reaction equipment for chemical industry Download PDFInfo
- Publication number
- CN116371295A CN116371295A CN202310393444.5A CN202310393444A CN116371295A CN 116371295 A CN116371295 A CN 116371295A CN 202310393444 A CN202310393444 A CN 202310393444A CN 116371295 A CN116371295 A CN 116371295A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- hollow
- tube
- scraper
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 49
- 229920000728 polyester Polymers 0.000 title claims abstract description 22
- 239000000126 substance Substances 0.000 title claims abstract description 12
- 238000007790 scraping Methods 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000009467 reduction Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000003889 chemical engineering Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005485 electric heating Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 22
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/006—Processes utilising sub-atmospheric pressure; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention discloses automatic vacuumizing polyester reaction equipment for chemical industry, which comprises a vacuum reaction kettle, wherein a feeding pipe is arranged at one side of the top of the vacuum reaction kettle; the other side is connected with a vacuum tube, and the tail end of the vacuum tube is connected with a vacuum pump body; the top of the vacuum tube is rotationally connected with a rotating tube, the rotating tube is connected with the spindle end of the driving motor in a matched mode, and a hollow scraping plate is attached to the inner wall of the vacuum tube. The vacuum pump is linked with the rotary pipe to rotate, so that the hollow scraper inserted in the vacuum pipe is driven to rotate, small molecular oligomers attached to the inner wall of the vacuum pipe are conveniently scraped off, meanwhile, the elastic air bags arranged in the scraping process are intermittently extruded to continuously charge air into the hollow scraper, the air bags are heated and warmed by the electric heating wires, and then are sprayed out from the inclined air holes on the hollow scraper to act on the inner wall of the vacuum pipe, so that the attached small molecular oligomers conveniently flow, the removing effect is enhanced, the cleaning efficiency is improved, and manual control is not needed.
Description
Technical Field
The invention relates to the technical field of polyester reaction, in particular to automatic vacuumizing polyester reaction equipment for chemical industry.
Background
The polyester reaction is generally carried out in a vacuum environment, the vacuum environment is manufactured by virtue of a vacuum system, the vacuum system is used for pumping and removing glycol generated in the polycondensation reaction process to enable the reaction to be carried out in the chain growth direction, and in addition, a small amount of water, aldehydes and other non-condensable gases generated in the reaction process are pumped and removed to provide vacuum conditions required by the reaction, so that the product quality is ensured; in the vacuum treatment process, small molecular oligomers are attached to the wall of a vacuum pipeline and need to be treated;
the Chinese patent grant publication No. CN212442407U, the name is an online heat cleaning device of a polyester vacuum system, comprising a pre-polymerization kettle, a spray condenser and an ethylene glycol heater, wherein the pre-polymerization kettle is communicated with the spray condenser through a connecting pipe, the pre-polymerization kettle is fixedly connected with the spray condenser in a sealing way, the ethylene glycol heater is arranged at the outer side of the spray condenser, and is connected with the spray condenser in a sealing way through a steam pipeline;
the defects of the prior art scheme are that: according to the scheme, only the oligomer attached to the inner wall of the vacuum pipeline is acted by high-temperature glycol steam, the removal effect is general, the efficiency is low, when the glycol is cleaned through the glycol steam each time, the glycol addition regulating valve and the circulating pump are required to be manually and periodically opened, the glycol is input into the interior of the glycol heater for heating, then the glycol steam is released into the interior of the vacuum pipeline through the steam pipeline, the operation cannot be synchronous with the vacuum device, namely the accumulation condition of attachments on the inner wall of the vacuum pipeline is required to be manually and periodically checked, and the use effect is poor.
Disclosure of Invention
The invention aims to provide automatic vacuumizing polyester reaction equipment for chemical industry, so as to solve the technical problems that the efficiency of removing oligomers attached to the inner wall of a vacuum pipeline in the polyester reaction equipment in the prior art is low, manual regular checking operation is needed, and the operation is not convenient enough.
The technical problems to be solved by the invention can be realized by the following technical scheme:
the automatic vacuumizing polyester reaction equipment for the chemical industry comprises a vacuum reaction kettle, wherein a feeding pipe is arranged at one side of the top of the vacuum reaction kettle; the other side is connected with a vacuum tube, the tail end of the vacuum tube is connected with a vacuum pump body, and the vacuum pump body is provided with a driving motor;
a closed valve assembly is arranged on the feed pipe; a starting key switch electrically connected with the vacuum pump body is arranged on the outer wall of the vacuum reaction kettle, and the starting key switch is matched with the closed valve component;
the top of the vacuum tube is rotationally connected with a rotating tube, the rotating tube is connected with a spindle end of a driving motor in a matched manner, a hollow scraping plate is attached to the inner wall of the vacuum tube and is communicated with the rotating tube, a plurality of inclined air holes are longitudinally and equidistantly formed in the hollow scraping plate, the hollow scraping plate and the rotating tube are both heat-conducting metal bodies, heating wires are arranged on the inner wall of the hollow scraping plate and the rotating tube, and a linkage air inlet mechanism is arranged at the top end of the rotating tube; the hollow scraping plate is provided with a blocking piece mechanism, and the bottom of the vacuum tube is provided with a discharge mechanism.
As a further scheme of the invention: the linkage air inlet mechanism comprises an elastic air bag, the elastic air bag is connected to the top end of the rotating pipe, one end of the elastic air bag is connected with a one-way air inlet valve, the other end of the elastic air bag is connected with a one-way air outlet valve, the one-way air outlet valve is communicated with the rotating pipe, one end, far away from the rotating pipe, of the elastic air bag is connected with a movable convex ball, and a fixed convex ball matched with the movable convex ball is connected to the vacuum pump body.
As a further scheme of the invention: the baffle mechanism comprises a rotary baffle and a U-shaped scraper, the rotary baffle is connected to the hollow scraper through a rebound hinge, the U-shaped scraper is arranged on the upper side of the rotary baffle, the U-shaped scraper is connected with the hollow scraper in a sliding fit manner, and a traction mechanism is connected between the U-shaped scraper and the movable convex ball.
As a further scheme of the invention: the traction mechanism comprises a linkage steel wire, one end of the linkage steel wire is connected to the movable convex ball, the other end of the linkage steel wire penetrates through the vacuum tube, a first fixed pulley matched with the linkage steel wire is connected to one side of the top end of the rotating tube, a second fixed pulley matched with the linkage steel wire is connected to the bottom end of the hollow scraping plate, and the U-shaped scraping plate is connected with the linkage steel wire.
As a further scheme of the invention: the discharging mechanism comprises a lifting bottom plate and a second valve plate, the lifting bottom plate is embedded at the bottom of the vacuum tube, the second valve plate is inserted on one side of the bottom of the vacuum tube in a sliding mode, the second valve plate is connected with the lifting bottom plate, a supporting spring is connected between the second valve plate and the outer wall of the vacuum tube, the bottom of the hollow scraping plate is connected with a push rod in a sliding mode, and one end, close to the U-shaped scraping plate, of the linkage steel wire is connected with the push rod.
As a further scheme of the invention: the hollow scraping plate is provided with a strip-shaped chute, the U-shaped scraping plate is in sliding connection with the strip-shaped chute, and a limiting spring is connected between the U-shaped scraping plate and the strip-shaped chute.
As a further scheme of the invention: the closed valve assembly comprises an electric telescopic rod and a first valve plate, the electric telescopic rod is connected to the vacuum reaction kettle, the first valve plate is inserted on the feeding pipe in a sliding mode, and the first valve plate is connected with the telescopic end of the electric telescopic rod.
As a further scheme of the invention: the rotary pipe is coaxially connected with a linkage gear, the spindle end of the driving motor is connected with a reduction gear set in a matched mode, and the reduction gear set is connected with the linkage gear in a matched mode.
The invention has the beneficial effects that:
1. after a proper amount of polyester reaction material is introduced into a vacuum reaction kettle through a feed pipe, the vacuum reaction kettle is closed by a closed valve assembly, the closed valve assembly acts on a starting key switch, so that a vacuum pump body is automatically started, a driving motor arranged on the vacuum pump body runs, the driving motor drives a rotary pipe to rotate by means of the combination of a reduction gear set and a linkage gear, the rotary pipe drives a hollow scraper blade inserted in a vacuum pipe to rotate, small molecular oligomers attached to the inner wall of the vacuum pipe are scraped off conveniently, meanwhile, an elastic air bag arranged in the scraping process is intermittently extruded, the hollow scraper blade is continuously inflated, and the hollow scraper blade is heated and heated by an electric heating wire, and then sprayed out from an inclined air hole on the hollow scraper blade to act on the inner wall of the vacuum pipe, so that the attached small molecular oligomers flow together conveniently, the removing effect is enhanced, the cleaning efficiency is improved, and manual control is not needed;
2. the rotary baffle plates distributed on the hollow scraping plates are used for intercepting small molecular oligomers sucked into the vacuum tubes, so that the small molecular oligomers are convenient to attach, and when the elastic air bags are extruded each time, the movable convex balls at the end parts of the elastic air bags pull the linkage steel wires, and the U-shaped scraping plates above the rotary baffle plates are pulled to slide downwards along the hollow scraping plates by means of the linkage steel wires, so that the small molecular oligomers attached to the outer walls of the hollow scraping plates and the rotary baffle plates are scraped off;
3. the bottom of the vacuum tube is provided with the openable lifting bottom plate, when the U-shaped scraping plate is pulled by the linkage steel wire to slide downwards, the lifting bottom plate is pushed downwards by the ejector rod in a synchronous pulling manner, and meanwhile, the lifting bottom plate drives the connected second valve plate to descend to close one end close to the vacuum pump, so that removed small molecular oligomers are conveniently discharged from the opening position of the lifting bottom plate.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 2;
FIG. 4 is a schematic top view cross-sectional structure of the hollow scraper and vacuum tube of the present invention in cooperation;
fig. 5 is an enlarged schematic view of the structure at C in fig. 1.
In the figure: 1. a vacuum reaction kettle; 2. a feed pipe; 3. a first valve plate; 4. starting a key switch; 5. an electric telescopic rod; 6. a vacuum pump body; 7. a driving motor; 8. a vacuum tube; 9. an elastic air bag; 10. a sliding guide rod; 11. a movable convex ball; 12. a one-way air inlet valve; 13. a one-way air outlet valve; 14. a linkage gear; 15. a reduction gear set; 16. a hollow scraper; 17. inclined air holes; 18. a U-shaped scraping plate; 19. rotating the baffle; 20. a linkage steel wire; 21. a rotary pipe; 22. fixing the convex ball; 23. a strip-shaped chute; 24. a second fixed pulley; 25. a first fixed pulley; 26. a push rod; 27. lifting the bottom plate; 28. a second valve plate; 29. a support spring; 30. heating wires; 31. and (5) connecting a plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, the automatic vacuumizing polyester reaction equipment for chemical industry comprises a vacuum reaction kettle 1, wherein a feeding pipe 2 is arranged at one side of the top of the vacuum reaction kettle 1, and the feeding pipe 2 is used for guiding materials required by polyester reaction into the vacuum reaction kettle 1; the top of the vacuum reaction kettle 1 is provided with a cover body, so that the material after the reaction can be conveniently opened and taken out; the feeding pipe 2 is provided with a sealing valve assembly, the sealing valve assembly comprises an electric telescopic rod 5 and a first valve plate 3, the electric telescopic rod 5 is fixedly connected to the vacuum reaction kettle 1 through a frame body, the first valve plate 3 is inserted on the feeding pipe 2 in a sliding mode, the first valve plate 3 is connected with the telescopic end of the electric telescopic rod 5, when a proper amount of materials are introduced into the vacuum reaction kettle 1, the electric telescopic rod 5 is controlled to extend, the first valve plate 3 descends, the feeding pipe 2 is blocked, and the feeding position is sealed;
the other side of the top of the vacuum reaction kettle 1 is vertically connected with a vacuum pipe 8, the tail end of the vacuum pipe 8 is connected with a vacuum pump body 6, the vacuum pump body 6 is a rotary vane type vacuum pump and is provided with a driving motor 7, the inside rotary vane is driven to rotate by virtue of the driving motor 7, then negative pressure is generated, the inside of the vacuum reaction kettle 1 is conveniently pumped into a vacuum environment through the vacuum pipe 8, a starting key switch 4 electrically connected with the vacuum pump body 6 is arranged on the outer wall of the vacuum reaction kettle 1, the starting key switch 4 is matched with a sealing valve component, the telescopic end of an electric telescopic rod 5 in the sealing valve component is positioned above the starting key switch 4, when the electric telescopic rod 5 stretches to drive a first valve plate 3 to descend so as to seal a feed pipe 2, the telescopic end of the electric telescopic rod 5 is abutted to the starting key switch 4, and the starting key switch 4 enables the vacuum pump body 6 to be started, so that automatic vacuum pumping operation is started;
the top of the vacuum tube 8 is rotationally connected with a rotary tube 21, the rotary tube 21 penetrates through the top of the vacuum tube 8, and the rotary tube 21 is connected with a main shaft end of the driving motor 7 in a matched manner, specifically: the rotary tube 21 is coaxially connected with a linkage gear 14, the spindle end of the driving motor 7 is connected with a reduction gear set 15 in a matched manner, the reduction gear set 15 is connected with the linkage gear 14 in a matched manner, when the vacuum pump body 6 is started, the driving motor 7 is started, the spindle end drives the reduction gear set 15 to operate, the linkage gear 14 is driven by the reduction gear set 15 to drive the rotary tube 21 to rotate, the hollow scraper 16 is attached to the inner wall of the vacuum tube 8, the hollow scraper 16 is communicated with the rotary tube 21, a plurality of inclined air holes 17 are longitudinally and equidistantly formed in the hollow scraper 16, the inclined air holes 17 are obliquely opposite to the inner wall of the vacuum tube 8, the hollow scraper 16 and the rotary tube 21 are heat-conducting metal bodies, heating wires 30 are buried in the inner wall, and a linkage air inlet mechanism is arranged at the top end of the rotary tube 21;
the linkage air inlet mechanism comprises an elastic air bag 9, the elastic air bag 9 is connected to the top end of a rotary pipe 21 through a connecting plate 31, the elastic air bag 9 can be transversely compressed, one end of the elastic air bag 9 is connected with a one-way air inlet valve 12, the other end of the elastic air bag 9 is connected with a one-way air outlet valve 13, the one-way air outlet valve 13 is communicated with the rotary pipe 21, the one-way air inlet valve 12 enables the elastic air bag 9 to suck air from the external environment, when the elastic air bag 9 is compressed, the one-way air outlet valve 13 is convenient for guiding the pressed air into the rotary pipe 21, one end of the elastic air bag 9, which is far away from the rotary pipe 21, is connected with a movable convex ball 11, a sliding guide rod 10 is fixedly connected to the movable convex ball 11, the sliding guide rod 10 is inserted on the connecting plate 31 in a sliding manner, and a fixed convex ball 22 matched with the movable convex ball 11 is connected to a vacuum pump body 6;
when the vacuum pump body 6 starts to operate, the spindle end of the driving motor 7 rotates to drive the rotary tube 21 to rotate in a linkage manner, the hollow scraping plate 16 at the bottom end of the rotary tube 21 scrapes along the inner wall of the vacuum tube 8 to scrape off attached small molecular oligomers, meanwhile, whenever the elastic air bag 9 on the rotary tube 21 rotates to be close to the fixed convex ball 22, transverse extrusion occurs between the fixed convex ball 22 and the movable convex ball 11, so that the movable convex ball 11 compresses the elastic air bag 9, air in the movable convex ball is discharged into the rotary tube 21 through the one-way air outlet valve 13 and flows into the hollow scraping plate 16 along the rotary tube 21, and meanwhile, the heated air is heated by electrifying the rotary tube 21 and the electric heating wire 30 in the hollow scraping plate 16, then the heated air is sprayed out from the inclined air holes 17 distributed on the hollow scraping plate 16 and acts on the inner wall of the vacuum tube 8, the attached small molecular oligomers conveniently flow, the removal effect is enhanced, and meanwhile, the outer wall of the hollow scraping plate 16 is a heat conducting metal body, the low molecular oligomers conveniently attached on the hollow scraping plate 16 is conveniently heated, and flows down to the inner bottom of the vacuum tube 8;
be provided with separation blade mechanism on the hollow scraper blade 16, separation blade mechanism is including rotating separation blade 19 and U type scraper blade 18, rotates separation blade 19 and passes through rebound hinged joint on hollow scraper blade 16, and rotates separation blade 19 and be provided with a plurality ofly, distributes along hollow scraper blade 16 equidistance, rotates separation blade 19 and is the heat conduction metal body equally, and has buried heating wire 30, U type scraper blade 18 is provided with a plurality ofly, corresponds to distribute at rotation separation blade 19 upside, and U type scraper blade 18 is connected with hollow scraper blade 16 sliding fit, specifically does: the hollow scraper 16 is provided with a bar-shaped chute 23, the U-shaped scraper 18 is attached to the outer wall of the hollow scraper 16 and is in sliding connection with the bar-shaped chute 23, a limit spring is connected between the U-shaped scraper 18 and the bar-shaped chute 23, not shown in the figure, a traction mechanism is connected between the U-shaped scraper 18 and the movable convex ball 11, the traction mechanism comprises a linkage steel wire 20, one end of the linkage steel wire 20 is connected to the movable convex ball 11, the other end of the linkage steel wire is arranged in the vacuum tube 8 in a penetrating way, the linkage steel wire 20 is arranged along the rotating tube 21 in a penetrating way, one side of the top end of the rotating tube 21 is connected with a first fixed pulley 25 matched with the linkage steel wire 20, the bottom end of the hollow scraper 16 is connected with a second fixed pulley 24 matched with the linkage steel wire 20, and the first fixed pulley 25 and the second fixed pulley 24 enable the linkage steel wire 20 to turn;
the rotating baffle 19 arranged on the hollow scraper 16 is used for blocking small molecular oligomers sucked into the vacuum tube 8, so that the small molecular oligomers are conveniently attached to the rotating baffle 19, and when the movable convex ball 11 compresses the elastic air bag 9, the movable convex ball 11 pulls the linkage steel wire 20, the linkage steel wire 20 pulls one end close to the U-shaped scraper 18 downwards under the steering action of the first fixed pulley 25 and the second fixed pulley 24, so that the connected U-shaped scraper 18 slides downwards, when each U-shaped scraper 18 slides downwards, the outer wall of the hollow scraper 16 is scraped, and meanwhile, the corresponding rotating baffle 19 is extruded and scraped, so that the oligomers attached to the surfaces of the rotating baffle 19 and the hollow scraper 16 are separated; when the movable convex ball 11 and the elastic air bag 9 are reset, the linkage steel wire 20 is loosened, all the U-shaped scraping plates 18 slide back and reset, and the rotary baffle 19 also rotates and resets, so that the repeated action can be realized;
the bottom of the vacuum tube 8 is provided with a discharge mechanism, the discharge mechanism comprises a lifting bottom plate 27 and a second valve plate 28, the lifting bottom plate 27 is horizontally embedded at the bottom of the vacuum tube 8, the second valve plate 28 is vertically and slidably inserted at one side of the bottom of the vacuum tube 8, the second valve plate 28 is connected with the lifting bottom plate 27 through a rod body, a supporting spring 29 is connected between the second valve plate 28 and the outer wall of the vacuum tube 8, the bottom of the hollow scraper 16 is slidably connected with a push rod 26, namely the push rod 26 is slidably connected with a strip-shaped chute 23 on the hollow scraper 16, and one end, close to the U-shaped scraper 18, of a linkage steel wire 20 is connected with the push rod 26;
when the U-shaped scraping plate 18 is pulled downwards by the linkage steel wire 20 to slide downwards, the linkage steel wire 20 also drives the ejector rod 26 to slide downwards, so that the ejector rod 26 pushes the lifting bottom plate 27 downwards, the lifting bottom plate 27 descends, the bottom of the vacuum tube 8 is opened, the internal treated oligomer is conveniently discharged, meanwhile, the lifting bottom plate 27 drives the second valve plate 28 to descend, one side of the vacuum tube 8, which is communicated with the vacuum pump body 6, is sealed, and the collected oligomer is conveniently discharged.
The working principle of the invention is as follows: the material required by the polyester reaction is led into the vacuum reaction kettle 1 through the feed pipe 2, when a proper amount of material is led into the vacuum reaction kettle 1, the electric telescopic rod 5 is controlled to extend, so that the first valve plate 3 descends, the feed pipe 2 is blocked, and the feed position is closed; when the electric telescopic rod 5 stretches, the telescopic end of the electric telescopic rod 5 abuts against the starting key switch 4, and the starting key switch 4 enables the vacuum pump body 6 to be started for vacuumizing operation;
when the vacuum pump body 6 starts to operate, the spindle end of the driving motor 7 is rotated and drives the speed reducing gear set 15 to operate, the speed reducing gear set 15 is used for driving the linkage gear 14 to drive the rotary pipe 21 to rotate, the hollow scraping plate 16 at the bottom end of the rotary pipe 21 scrapes along the inner wall of the vacuum pipe 8 to scrape off attached small molecular oligomer, and meanwhile, when the elastic air bag 9 on the rotary pipe 21 rotates to be close to the fixed convex ball 22, transverse extrusion occurs between the fixed convex ball 22 and the movable convex ball 11, so that the movable convex ball 11 compresses the elastic air bag 9, air in the hollow scraping plate is discharged into the rotary pipe 21 through the one-way air outlet valve 13 and flows into the hollow scraping plate 16 along the rotary pipe 21, and meanwhile, the temperature is raised by means of electrifying and heating the electric heating wires 30 in the rotary pipe 21 and the hollow scraping plate 16, then hot air is sprayed out from the inclined air holes 17 distributed on the hollow scraping plate 16 and acts on the inner wall of the vacuum pipe 8, the attached small molecular oligomer is conveniently moved, the removal effect is enhanced, and meanwhile, the outer wall of the hollow scraping plate 16 is a metal body, and the air is conveniently attached to the hollow scraping plate 16 is heated up and flows down to the inner bottom of the vacuum pipe 8;
the rotating baffle 19 arranged on the hollow scraper 16 is used for blocking small molecular oligomers sucked into the vacuum tube 8, so that the small molecular oligomers are conveniently attached to the rotating baffle 19, and when the movable convex ball 11 compresses the elastic air bag 9, the movable convex ball 11 pulls the linkage steel wire 20, the linkage steel wire 20 pulls one end close to the U-shaped scraper 18 downwards under the steering action of the first fixed pulley 25 and the second fixed pulley 24, so that the connected U-shaped scraper 18 slides downwards, when each U-shaped scraper 18 slides downwards, the outer wall of the hollow scraper 16 is scraped, and meanwhile, the corresponding rotating baffle 19 is extruded and scraped, so that the oligomers attached to the surfaces of the rotating baffle 19 and the hollow scraper 16 are separated; when the movable convex ball 11 and the elastic air bag 9 are reset, the linkage steel wire 20 is loosened, all the U-shaped scraping plates 18 slide back and reset, and the rotary baffle 19 also rotates and resets, so that the repeated action can be realized;
when the U-shaped scraping plate 18 is pulled downwards by the linkage steel wire 20 to slide downwards, the linkage steel wire 20 also drives the ejector rod 26 to slide downwards, so that the ejector rod 26 pushes the lifting bottom plate 27 downwards, the lifting bottom plate 27 descends, the bottom of the vacuum tube 8 is opened, the internal treated oligomer is conveniently discharged, meanwhile, the lifting bottom plate 27 drives the second valve plate 28 to descend, one side of the vacuum tube 8, which is communicated with the vacuum pump body 6, is sealed, and the collected oligomer is conveniently discharged.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. The automatic vacuumizing polyester reaction equipment for chemical industry comprises a vacuum reaction kettle (1), wherein a feeding pipe (2) is arranged at one side of the top of the vacuum reaction kettle (1); the other side is connected with a vacuum tube (8), the tail end of the vacuum tube (8) is connected with a vacuum pump body (6), and the vacuum pump body (6) is provided with a driving motor (7); the method is characterized in that:
a closed valve assembly is arranged on the feed pipe (2); a starting key switch (4) electrically connected with the vacuum pump body (6) is arranged on the outer wall of the vacuum reaction kettle (1), and the starting key switch (4) is matched with the closed valve component;
the top of the vacuum tube (8) is rotationally connected with a rotating tube (21), the rotating tube (21) is connected with a main shaft end of the driving motor (7) in a matched manner, a hollow scraping plate (16) is attached to the inner wall of the vacuum tube (8), the hollow scraping plate (16) is communicated with the rotating tube (21), a plurality of inclined air holes (17) are longitudinally and equidistantly formed in the hollow scraping plate (16), the hollow scraping plate (16) and the rotating tube (21) are both heat-conducting metal bodies, heating wires (30) are respectively arranged on the inner wall of the hollow scraping plate, and a linkage air inlet mechanism is arranged at the top end of the rotating tube (21); a baffle mechanism is arranged on the hollow scraping plate (16), and a discharge mechanism is arranged at the bottom of the vacuum tube (8).
2. The automatic vacuumizing polyester reaction equipment for chemical engineering according to claim 1, wherein the linkage air inlet mechanism comprises an elastic air bag (9), the elastic air bag (9) is connected to the top end of a rotary pipe (21), one end of the elastic air bag (9) is connected with a one-way air inlet valve (12), the other end of the elastic air bag is connected with a one-way air outlet valve (13), the one-way air outlet valve (13) is communicated with the rotary pipe (21), one end, far away from the rotary pipe (21), of the elastic air bag (9) is connected with a movable convex ball (11), and a fixed convex ball (22) matched with the movable convex ball (11) is connected to the vacuum pump body (6).
3. The automatic vacuumizing polyester reaction equipment for chemical engineering according to claim 2, wherein the baffle mechanism comprises a rotary baffle (19) and a U-shaped scraper (18), the rotary baffle (19) is connected to the hollow scraper (16) through a rebound hinge, the U-shaped scraper (18) is arranged on the upper side of the rotary baffle (19), the U-shaped scraper (18) is connected with the hollow scraper (16) in a sliding fit manner, and a traction mechanism is connected between the U-shaped scraper (18) and the movable convex ball (11).
4. The automatic vacuumizing polyester reaction equipment for chemical engineering according to claim 3, wherein the traction mechanism comprises a linkage steel wire (20), one end of the linkage steel wire (20) is connected to the movable convex ball (11), the other end of the linkage steel wire is arranged in the vacuum tube (8) in a penetrating mode, a first fixed pulley (25) matched with the linkage steel wire (20) is connected to one side of the top end of the rotating tube (21), a second fixed pulley (24) matched with the linkage steel wire (20) is connected to the bottom end of the hollow scraper (16), and the U-shaped scraper (18) is connected with the linkage steel wire (20).
5. The automatic vacuumizing polyester reaction equipment for chemical industry according to claim 4, wherein the discharging mechanism comprises a lifting bottom plate (27) and a second valve plate (28), the lifting bottom plate (27) is embedded at the bottom of the vacuum tube (8), the second valve plate (28) is inserted on one side of the bottom of the vacuum tube (8) in a sliding mode, the second valve plate (28) is connected with the lifting bottom plate (27), a supporting spring (29) is connected between the second valve plate (28) and the outer wall of the vacuum tube (8), a push rod (26) is connected to the bottom of the hollow scraper (16) in a sliding mode, and one end, close to the U-shaped scraper (18), of the linkage steel wire (20) is connected with the push rod (26).
6. The automatic vacuumizing polyester reaction equipment for chemical industry according to claim 1, wherein the hollow scraping plate (16) is provided with a strip-shaped chute (23), the U-shaped scraping plate (18) is in sliding connection with the strip-shaped chute (23), and a limiting spring is connected between the U-shaped scraping plate (18) and the strip-shaped chute (23).
7. The automatic vacuumizing polyester reaction equipment for chemical industry according to claim 1, wherein the sealing valve assembly comprises an electric telescopic rod (5) and a first valve plate (3), the electric telescopic rod (5) is connected to the vacuum reaction kettle (1), the first valve plate (3) is inserted on the feeding pipe (2) in a sliding mode, and the first valve plate (3) is connected with the telescopic end of the electric telescopic rod (5).
8. The automatic vacuumizing polyester reaction equipment for chemical industry according to claim 1, wherein a linkage gear (14) is coaxially connected to the rotary pipe (21), a reduction gear set (15) is connected to the main shaft end of the driving motor (7) in a matched mode, and the reduction gear set (15) is connected with the linkage gear (14) in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393444.5A CN116371295A (en) | 2023-04-13 | 2023-04-13 | Automatic vacuumizing polyester reaction equipment for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393444.5A CN116371295A (en) | 2023-04-13 | 2023-04-13 | Automatic vacuumizing polyester reaction equipment for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116371295A true CN116371295A (en) | 2023-07-04 |
Family
ID=86978603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310393444.5A Pending CN116371295A (en) | 2023-04-13 | 2023-04-13 | Automatic vacuumizing polyester reaction equipment for chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116371295A (en) |
-
2023
- 2023-04-13 CN CN202310393444.5A patent/CN116371295A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213912428U (en) | Crystallization kettle anti-clogging device | |
| WO2023015801A1 (en) | Freeze-drying device for drug injection preparation | |
| CN113182262A (en) | Intelligent production line for bletilla striata decoction pieces | |
| CN116371295A (en) | Automatic vacuumizing polyester reaction equipment for chemical industry | |
| CN114688847A (en) | Multifunctional vacuum vertical spiral stirring, drying and material pouring machine | |
| CN110743408A (en) | Efficient thermal desorption equipment for soil organic pollution restoration | |
| CN113203300A (en) | Evaporation type condenser | |
| CN111921228B (en) | Ultrasonic reinforced supercritical fluid extraction method | |
| CN114931768B (en) | Extraction device for preparing traditional Chinese medicine composition | |
| CN113559539A (en) | Distillation extraction equipment for bio-pharmaceuticals | |
| CN211247727U (en) | Change system drying machine | |
| CN216964390U (en) | Milk beverage production is with heat preservation allotment jar | |
| CN215439741U (en) | Landfill leachate low temperature evaporation equipment | |
| CN213395932U (en) | Water tank of air energy water heater | |
| CN211316739U (en) | Vacuum drier | |
| CN211912748U (en) | Chemical waste residue treatment device | |
| JP2003038915A (en) | Apparatus and system for solid/liquid separation, and apparatus and system for garbage treatment using the same | |
| CN219607515U (en) | Heparin sodium low-temperature vacuum drying oven | |
| CN113551431B (en) | Self-descaling environment-friendly solar heat collecting tube | |
| CN109129993B (en) | Device for recovering waste high polymer thin-wall tubular material | |
| CN219946870U (en) | Cooling device is used in polyacrylamide production | |
| CN219308745U (en) | Ion exchange device | |
| CN219023633U (en) | Heat energy recycling device for garbage heating device | |
| CN219454698U (en) | Calcining kiln waste heat recovery equipment | |
| CN116557285B (en) | Hydraulic pump for electromechanical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |