CN113398855A - But reation kettle is used in self-cleaning's polyurethane production - Google Patents
But reation kettle is used in self-cleaning's polyurethane production Download PDFInfo
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- CN113398855A CN113398855A CN202110798273.5A CN202110798273A CN113398855A CN 113398855 A CN113398855 A CN 113398855A CN 202110798273 A CN202110798273 A CN 202110798273A CN 113398855 A CN113398855 A CN 113398855A
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- stirring
- kettle body
- stirring shaft
- liquid
- strip
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 32
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 118
- 239000007788 liquid Substances 0.000 claims abstract description 86
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000001802 infusion Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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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
- B01J19/0053—Details of the reactor
-
- 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
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- 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
-
- 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
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0813—Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to the technical field of reaction kettles, and discloses a reaction kettle capable of being automatically cleaned and used for polyurethane production, which comprises a kettle body, wherein the top of the kettle body is provided with a feeding hole, and the bottom of the kettle body is provided with a discharging hole; the stirring device comprises a driving motor, a stirring shaft and stirring blades, wherein one end of the stirring shaft is connected with the driving motor, the other end of the stirring shaft extends into the kettle body, the stirring blades are arranged on the outer peripheral side of the stirring shaft, the stirring shaft and the stirring blades are hollow, the stirring blades are communicated with the interior of the stirring shaft, and a plurality of liquid outlet holes communicated with the interior of the kettle body are formed in the stirring blades; the cleaning device comprises a liquid storage tank, a liquid conveying pipeline and a pump, wherein the pump is arranged on the liquid conveying pipeline, one end of the liquid conveying pipeline is connected with the liquid storage tank, and the other end of the liquid conveying pipeline is connected with the top of the stirring shaft. According to the invention, the liquid outlet holes on the stirring blades are utilized to transmit water flow or other cleaning liquid into the kettle body, so that the interior of the kettle body is cleaned without extending a liquid conveying pipeline into the kettle body.
Description
Technical Field
The invention relates to the technical field of reaction kettles, in particular to a reaction kettle capable of being automatically cleaned and used for polyurethane production.
Background
Polyurethane (PU), a full name of polyurethane, is a high molecular compound, and has characteristics of high strength, tear resistance, wear resistance, and the like, so that it is widely used in the fields of home furnishing, buildings, daily necessities, transportation, home appliances, and the like. Polyurethane is generally produced by mixing and stirring production raw materials in a reaction kettle, and the reaction kettle serving as an important device for producing polyurethane influences the quality of the produced polyurethane. After polyurethane is produced by using a reaction kettle, an inner cavity of the reaction kettle is generally required to be cleaned so as to prepare for the next production. At present, the inner cavity of the reaction kettle is generally cleaned by extending a high-pressure water spray head into the reaction kettle and manually operating the position of the high-pressure water spray head. However, the cleaning method is not only inefficient, but also labor-intensive, and the residual gas in polyurethane production can cause harm to human body due to manual cleaning.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a reaction kettle for polyurethane production, which is capable of automatically cleaning, so as to solve the problems of low cleaning efficiency, large labor capacity and easy damage of residual gas to human body of the existing reaction kettle.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a reaction kettle for producing polyurethane, which can be automatically cleaned, and comprises:
the device comprises a kettle body, wherein a feeding hole is formed in the top of the kettle body, and a discharging hole is formed in the bottom of the kettle body;
the stirring device comprises a driving motor, a stirring shaft and stirring blades, wherein one end of the stirring shaft is connected with the driving motor, the other end of the stirring shaft extends into the kettle body, the stirring blades are arranged on the outer peripheral side of the stirring shaft, the stirring shaft is hollow, the stirring blades are communicated with the inside of the stirring shaft, and a plurality of liquid outlet holes communicated with the inside of the kettle body are formed in the stirring blades;
the cleaning device comprises a liquid storage tank, a liquid conveying pipeline and a pump, wherein the pump is arranged on the liquid conveying pipeline, one end of the liquid conveying pipeline is connected with the liquid storage tank, and the other end of the liquid conveying pipeline is connected with the top of the stirring shaft.
Preferably, the stirring leaf includes inner tube, urceolus and drive arrangement, the one end of inner tube with the outer wall of (mixing) shaft is fixed, the urceolus cover is established on the inner tube, drive arrangement installs the urceolus with between the inner tube, in order to drive the urceolus is followed the inner tube slides, it sets up to go out the liquid hole the wall of inner tube.
Preferably, the driving device is an electric push rod.
Preferably, electric putter's outside covers there is the strip shell, the strip shell with the outer wall of inner tube is fixed, be provided with on the urceolus with shell assorted strip is protruding, the bellied below of strip is provided with the elastic component, the one end of elastic component with the inner tube is connected, the other end of elastic component with the bellied terminal surface of strip is connected, the both sides of elastic component set up slidable respectively in the wall of urceolus, electric putter's one end with the inner tube is fixed, electric putter's other end butt is in the bellied terminal surface of strip.
Preferably, one end of the stirring blade is provided with an arc-shaped scraper.
Preferably, the inside cavity of arc scraper blade, just the inside of arc scraper blade with the inside intercommunication of stirring leaf, be provided with on the arc scraper blade go out the liquid hole.
Preferably, the infusion tube is a hose.
Preferably, the top of the kettle body is provided with a support frame for supporting the hose, the hose is arranged on the top of the support frame, and the top height of the support frame is higher than the top height of the stirring device.
Preferably, the bottom of the kettle body is also provided with a liquid outlet.
Preferably, the plurality of stirring blades are staggered along the central axis direction of the stirring shaft.
Compared with the prior art, the reaction kettle capable of being automatically cleaned for polyurethane production has the beneficial effects that:
according to the reaction kettle disclosed by the embodiment of the invention, the stirring shaft and the stirring blade are arranged to be of a hollow structure with the inner parts communicated, and the inner space is communicated with the liquid conveying pipeline of the cleaning device, so that water flow or other cleaning liquid in the liquid conveying pipeline can enter the kettle body through the liquid outlet holes in the stirring blade, the cleaning of the inner part of the kettle body is realized, the liquid conveying pipeline does not need to extend into the kettle body, the structure of the kettle body is simplified, and a high-pressure water gun does not need to extend into the kettle body.
Drawings
FIG. 1 is a schematic structural diagram of a reaction kettle according to an embodiment of the invention;
FIG. 2 is a schematic sectional view of a stirring vane in an embodiment of the present invention;
in the figure, 1, a kettle body; 11. a feed inlet; 12. a discharge port; 13. a liquid outlet; 2. a drive motor; 3. a stirring shaft; 4. stirring blades; 41. an inner barrel; 42. an outer cylinder; 43. an electric push rod; 44. a strip-shaped housing; 45. strip-shaped bulges; 5. a liquid storage tank; 6. a fluid delivery conduit; 61. an electromagnetic valve; 7. a pump; 8. an arc-shaped scraper.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, the reaction kettle for producing polyurethane, which is capable of being automatically cleaned according to the embodiment of the present invention, includes a kettle body 1, a stirring device and a cleaning device, wherein a feeding port 11 is provided at the top of the kettle body 1 for delivering raw materials required for producing polyurethane, and a discharging port 12 is provided at the bottom of the kettle body 1 for outputting polyurethane formed in production or waste liquid after cleaning; the stirring device comprises a driving motor 2, a stirring shaft 3 and stirring blades 4, wherein the driving motor 2 is connected with the stirring shaft 3 so as to drive the stirring shaft 3 to rotate, the stirring shaft 3 can be in transmission connection with a motor shaft of the driving motor 2, the driving motor 2 can be fixed at the top of the kettle body 1, or a motor mounting frame is arranged at the top of the kettle body 1, and the driving motor 2 is mounted on the motor mounting frame; one end, which is not connected with the driving motor 2, of the stirring shaft 3 extends into the kettle body 1, the stirring blades 4 are arranged on the outer peripheral side of the stirring shaft 3, the stirring blades 4 are located in the kettle body 1, the stirring shaft 3 is hollow, the stirring blades 4 are communicated with the interior of the stirring shaft 3, a plurality of liquid outlet holes communicated with the interior of the kettle body 1 are formed in the stirring blades 4, and the liquid outlet holes are also uniformly formed in the circumferential direction of the stirring blades 4; the cleaning device comprises a liquid storage tank 5, a liquid conveying pipeline 6 and a pump 7, wherein water or other cleaning liquid is stored in the liquid storage tank 5, the pump 7 is arranged on the liquid conveying pipeline 6, one end of the liquid conveying pipeline 6 is connected with the liquid storage tank 5, the other end of the liquid conveying pipeline 6 is connected with the top of the stirring shaft 3, the cleaning liquid in the liquid storage tank 5 can be transmitted to the inside of the stirring shaft 3 through the liquid conveying pipeline 6, the cleaning liquid enters the inner space of the stirring shaft 3 and the stirring blades 4 and then enters the inside of the kettle body 1 through the liquid outlet hole in the stirring blades 4, the cleaned waste liquid is output to the outside of the kettle body 1 through a discharge port 12, the cleaning of the kettle body 1 is realized, a high-pressure water gun is not required to be additionally arranged inside and outside the kettle body 1 or the liquid conveying pipeline 6 is extended into the inside of the kettle body 1, the structure of the kettle body 1 is simplified, and the automatic cleaning of the kettle body 1 is realized.
In this embodiment, the bottom of the kettle body 1 is further provided with a liquid outlet 13, and the position of the liquid outlet 13 and the position of the discharge port 12 are not interfered with each other, so that the discharge of polyurethane and the liquid outlet of the cleaning waste liquid are separated.
Optionally, a flange interface may be disposed on the top of the stirring shaft 3, and the flange interface is connected to the infusion pipe 6 through a flange, so as to detachably connect the infusion pipe 6 and the stirring shaft 3. When need not to wash the cauldron body 1, can lift off infusion pipeline 6 from the flange interface to cover the flange apron on the flange interface and seal in order to realize the closure to (mixing) shaft 3, when making (mixing) shaft 3 rotate the stirring, infusion pipeline 6 can not twine on (mixing) shaft 3, perhaps disturbs the rotation of (mixing) shaft 3. When the kettle body 1 needs to be cleaned, the liquid conveying pipeline 6 is connected to a flange connector of the stirring shaft 3.
In this embodiment, the infusion tube 6 is a flexible tube, which is beneficial to changing the position of the infusion tube 6. The top of the kettle body 1 is provided with a support frame for supporting the hose, the hose is arranged on the top of the support frame, and the top height of the support frame is higher than that of the stirring device, so that the part of the infusion pipeline 6 is higher than that of the stirring device. The hose is lifted by the supporting frame, so that when part of the hose rotates along with the stirring shaft 3, the hose can not be wound on the stirring shaft 3, and the transmission of liquid can not be influenced.
Further, a control valve is arranged at the position of the liquid conveying pipeline 6 close to the stirring shaft 3 so as to control the opening and closing of the liquid conveying pipeline 6. The control valve is preferably a solenoid valve 61.
Preferably, the stirring blades 4 are arranged in a staggered manner along the central axis direction of the stirring shaft 3, so that on one hand, raw materials can be stirred more sufficiently, and the raw materials are uniformly mixed; on the other hand, the water flow output from the liquid outlet holes of the stirring blades 4 can be uniformly dispersed in the kettle body 1. It should be noted that the staggered arrangement means that the vertical height positions of the plurality of stirring vanes 4 in the central axis direction of the stirring shaft 3 are different. The positions of the stirring blades 4 in the circumferential direction of the stirring shaft 3 may be the same or different, for example, two stirring blades 4 adjacent to each other up and down, and a connecting line between connecting points of the two stirring blades 4 and the stirring shaft 3 may be parallel or non-parallel to the central axis of the stirring shaft 3.
In this embodiment, the stirring blade 4 includes an inner cylinder 41, an outer cylinder 42 and a driving device, one end of the inner cylinder 41 is fixed to the outer wall of the stirring shaft 3, the outer cylinder 42 is sleeved on the inner cylinder 41, the driving device is installed between the outer cylinder 42 and the inner cylinder 41 to drive the outer cylinder 42 to slide along the inner cylinder 41, the liquid outlet is formed in the wall surface of the inner cylinder 41, when the kettle body 1 does not need to be cleaned, the outer cylinder 42 covers the inner cylinder 41 to block the liquid outlet, so that the polyurethane raw material is prevented from entering the stirring blade 4 from the liquid outlet; when the kettle body 1 needs to be cleaned, the outer cylinder 42 slides relative to the inner cylinder 41, the liquid outlet hole is communicated with the inside of the kettle body 1, and the cleaning liquid enters the inside of the kettle body 1 from the liquid outlet hole.
Further, the liquid outlet hole can be arranged on the end surface of the outer cylinder 42 perpendicular to the cylinder wall, so as to clean the inner wall of the kettle body 1.
As shown in fig. 2, in the present embodiment, the driving device is an electric push rod 43. Further, a strip-shaped shell 44 covers the outer portion of the electric push rod 43 to protect the electric push rod 43 and prevent polyurethane raw materials from entering the inner portion of the electric push rod 43, the side surface of the strip-shaped shell 44 is fixed to the outer wall of the inner cylinder 41, a strip-shaped protrusion 45 matched with the shell is arranged on the outer cylinder 42, one end of the strip-shaped shell 44 is open, and the inner space of the strip-shaped shell 44 is communicated with the inner portion of the strip-shaped protrusion 45; when the outer cylinder 42 covers the inner cylinder 41, the strip-shaped protrusion 45 covers the strip-shaped shell 44 to prevent the electric push rod 43 from blocking the sliding of the outer cylinder 42; the elastic part is arranged below the strip-shaped bulge 45, one end of the elastic part is connected with the inner cylinder 41, is specifically connected with the outer wall of the inner cylinder 41 and is close to the end part of the inner cylinder 41 far away from the stirring shaft 3, the other end of the elastic part is connected with the end face of the strip-shaped bulge 45, the end face refers to the end face perpendicular to the central axis of the stirring blade 4, two sides of the elastic part are respectively slidably arranged in the wall surface of the outer cylinder 42, so that when the outer cylinder 42 slides relative to the inner cylinder 41, the elastic part can stretch along with the outer cylinder, the electric push rod 43 and the strip-shaped shell 44 are prevented from obstructing the sliding of the outer cylinder 42, meanwhile, when the stirring blade 4 is filled with water flow, the elastic part covers the bulge, the water flow can be prevented from entering the inner space communicated with the strip-shaped bulge 45 and the strip-shaped shell 44, and the water flow is prevented from entering the inside of the electric push rod 43. The elastic piece covers the lower part of the strip-shaped bulge 45, and the elastic piece and the inner wall of the outer cylinder 42 form a complete circle; the elastic member may be a retractable plate member. One end of the electric push rod 43 is fixed to the inner cylinder 41, the other end of the electric push rod 43 abuts against an end face of the strip-shaped protrusion 45, and the electric push rod 43 is used for sliding the outer cylinder 42 relative to the inner cylinder 41, wherein the end face is an end face perpendicular to the central axis of the stirring blade 4.
It should be noted that the strip-shaped housing 44 and the strip-shaped protrusion 45 are both strip-shaped along the central axis of the inner cylinder 41 or the outer cylinder 42. The end of the strip-shaped housing 44 may be fixed to the stirring shaft 3, or there may be a gap between the end of the strip-shaped housing 44 and the stirring shaft 3. The length of the strip-shaped protrusion 45 is substantially the same as the length of the strip-shaped housing 44, the length of the strip-shaped protrusion 45 is less than or equal to the length of the outer cylinder 42, and when the strip-shaped protrusion 45 covers the strip-shaped housing 44, the outer cylinder 42 can cover the inner cylinder 41 completely or partially. The extension length of the outer cylinder 42 and the inner cylinder 41 is less than the radius of the kettle body 1.
Further, the reaction kettle is also provided with a controller which is connected with the driving motor 2, the electric push rod 43 and the electromagnetic valve 61 so as to control the rotation of the stirring shaft 3, the work of the electric push rod 43 and the opening and closing of the liquid conveying pipeline 6 by the controller.
In this embodiment, the one end of stirring leaf 4 is provided with arc scraper blade 8, and arc scraper blade 8's radian and the inner wall radian phase-match of the cauldron body 1 utilize arc scraper blade 8 can carry out preliminary cleaning to the inner wall of the cauldron body 1, are favorable to scraping the raw materials that will remain on the inner wall of the cauldron body 1, are convenient for to the further washing of the cauldron body 1.
Further, the inside cavity of arc scraper blade 8, just the inside of arc scraper blade 8 with the inside intercommunication of stirring leaf 4, be provided with on the arc scraper blade 8 go out the liquid hole. A plurality of liquid outlet holes can be uniformly arranged on the arc-shaped scraper 8, so that the inner wall of the kettle body 1 can be conveniently cleaned, and the flowing cleaning liquid can be uniformly dispersed.
The working process of the invention is as follows:
when need not to wash the cauldron body 1, solenoid valve 61 is closed, and pump 7 is out of work, and driving motor 2 drive (mixing) shaft 3 rotates, and stirring leaf 4 rotates along with (mixing) shaft 3, at the pivoted in-process for raw materials intensive mixing mixes for the polyurethane production, and the polyurethane of formation flows out from discharge gate 12.
When the kettle body 1 needs to be cleaned, the electromagnetic valve 61 is opened, the pump 7 works, and water in the liquid storage tank 5 is conveyed to the inner space of the stirring shaft 3 and the stirring blade 4. The outer cylinder 42 is pushed by the electric push rod 43, so that the outer cylinder 42 slides relative to the inner cylinder 41, the liquid outlet hole in the inner cylinder 41 is communicated with the inside of the kettle body 1, water flows into the kettle body 1 from the liquid outlet hole, the kettle body 1 is cleaned, and the cleaned waste liquid flows out from the discharge hole 12 or the liquid outlet 13. When the kettle body 1 is cleaned, the stirring shaft 3 may or may not rotate.
To sum up, the embodiment of the present invention provides a reaction kettle, in which a stirring shaft 3 and a stirring blade 4 are arranged in a hollow structure with an internal communication, and the internal space is communicated with a liquid conveying pipeline 6 of a cleaning device, so that water flow or other cleaning liquid in the liquid conveying pipeline 6 can enter the interior of a kettle body 1 through a liquid outlet hole on the stirring blade 4, thereby cleaning the interior of the kettle body 1 without extending the liquid conveying pipeline 6 into the kettle body 1, simplifying the structure of the kettle body 1, and without extending a high pressure water gun into the kettle body 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A reaction kettle capable of being automatically cleaned for polyurethane production is characterized by comprising:
the device comprises a kettle body, wherein a feeding hole is formed in the top of the kettle body, and a discharging hole is formed in the bottom of the kettle body;
the stirring device comprises a driving motor, a stirring shaft and stirring blades, wherein one end of the stirring shaft is connected with the driving motor, the other end of the stirring shaft extends into the kettle body, the stirring blades are arranged on the outer peripheral side of the stirring shaft, the stirring shaft is hollow, the stirring blades are communicated with the inside of the stirring shaft, and a plurality of liquid outlet holes communicated with the inside of the kettle body are formed in the stirring blades;
the cleaning device comprises a liquid storage tank, a liquid conveying pipeline and a pump, wherein the pump is arranged on the liquid conveying pipeline, one end of the liquid conveying pipeline is connected with the liquid storage tank, and the other end of the liquid conveying pipeline is connected with the top of the stirring shaft.
2. The reaction kettle for producing polyurethane capable of being automatically cleaned according to claim 1, wherein the stirring blade comprises an inner cylinder, an outer cylinder and a driving device, one end of the inner cylinder is fixed with the outer wall of the stirring shaft, the outer cylinder is sleeved on the inner cylinder, the driving device is installed between the outer cylinder and the inner cylinder to drive the outer cylinder to slide along the inner cylinder, and the liquid outlet is arranged on the wall surface of the inner cylinder.
3. The self-cleanable reaction kettle for polyurethane production according to claim 2, wherein the driving device is an electric push rod.
4. The reaction kettle for producing polyurethane capable of being automatically cleaned according to claim 3, wherein a strip-shaped outer shell covers the outer portion of the electric push rod, the strip-shaped outer shell is fixed to the outer wall of the inner barrel, a strip-shaped protrusion matched with the outer shell is arranged on the outer barrel, an elastic part is arranged below the strip-shaped protrusion, one end of the elastic part is connected with the inner barrel, the other end of the elastic part is connected with the end face of the strip-shaped protrusion, two sides of the elastic part are slidably arranged in the wall face of the outer barrel respectively, one end of the electric push rod is fixed to the inner barrel, and the other end of the electric push rod abuts against the end face of the strip-shaped protrusion.
5. The self-cleanable reaction kettle for polyurethane production according to claim 1, wherein an arc-shaped scraper is provided at one end of the stirring blade.
6. The reaction kettle for producing polyurethane capable of being automatically cleaned according to claim 5, wherein the arc-shaped scraper is hollow, the inside of the arc-shaped scraper is communicated with the inside of the stirring blade, and the liquid outlet hole is formed in the arc-shaped scraper.
7. The self-cleanable polyurethane production reactor according to claim 1, wherein the liquid supply line is a hose.
8. The reaction kettle capable of being automatically cleaned for polyurethane production as claimed in claim 7, wherein a support frame for supporting the hose is arranged on the top of the kettle body, the hose is arranged on the top of the support frame, and the top height of the support frame is higher than the top height of the stirring device.
9. The reaction kettle capable of being automatically cleaned for polyurethane production as claimed in claim 1, wherein a liquid outlet is further arranged at the bottom of the kettle body.
10. The self-cleanable reaction kettle for polyurethane production according to claim 1, wherein a plurality of stirring blades are arranged in a staggered manner along a central axis direction of the stirring shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110798273.5A CN113398855A (en) | 2021-07-14 | 2021-07-14 | But reation kettle is used in self-cleaning's polyurethane production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110798273.5A CN113398855A (en) | 2021-07-14 | 2021-07-14 | But reation kettle is used in self-cleaning's polyurethane production |
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| CN113398855A true CN113398855A (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717517A (en) * | 2022-11-30 | 2023-02-28 | 北京探矿工程研究所 | Evaluation device and experimental method for influence of simulated drilling on hydrate decomposition inhibition performance |
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| CN207562871U (en) * | 2017-07-29 | 2018-07-03 | 盐城美茵新材料有限公司 | A kind of lauryl sodium sulfate production reaction kettle |
| CN208161592U (en) * | 2018-04-04 | 2018-11-30 | 潍坊市招商科瑞生物技术有限公司 | A kind of PET reaction kettle with cleaning function |
| CN109289747A (en) * | 2018-12-07 | 2019-02-01 | 杭州纳尔森精细化工有限公司 | A kind of reaction kettle convenient for cleaning inner wall agglomeration |
| CN209362354U (en) * | 2018-12-27 | 2019-09-10 | 河套学院 | A kind of environmental protection type water reducer compositional apparatus |
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| CN115717517B (en) * | 2022-11-30 | 2024-01-23 | 北京探矿工程研究所 | Evaluation device and experimental method for influence of simulated drilling on hydrate inhibition and decomposition performance |
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Application publication date: 20210917 |