CN210449176U - Anti-migration reaction kettle for thermoplastic polyurethane elastomer preparation - Google Patents
Anti-migration reaction kettle for thermoplastic polyurethane elastomer preparation Download PDFInfo
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- CN210449176U CN210449176U CN201921231683.6U CN201921231683U CN210449176U CN 210449176 U CN210449176 U CN 210449176U CN 201921231683 U CN201921231683 U CN 201921231683U CN 210449176 U CN210449176 U CN 210449176U
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- inner cavity
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Abstract
The utility model discloses a reation kettle is used to anti migration thermoplastic polyurethane elastomer system, the reactor comprises a kettle body, the top of the cauldron body is provided with the feed inlet, agitator motor blow-down pipe and thermometer, the top spiro union of feed inlet has sealed lid, agitator motor's bottom is provided with the (mixing) shaft, the outer wall of (mixing) shaft is provided with the stirring rake, the right side wall top of the cauldron body is provided with the backup pad, the top of backup pad is provided with the vacuum pump, the left side intake pipe of vacuum pump is provided with the exhaust tube, the outer wall of the cauldron body has cup jointed and has pressed from both sides the cover, the left side wall top that presss from both sides the cover is provided with into oil pipe, the bottom that presss from both sides the cover is provided with out oil pipe, the right side wall that presss. The utility model discloses can be through the temperature of the internal portion material of flow rate control cauldron of hot oil to accomplish adding nitrogen gas at the reaction, maintain the internal and external atmospheric pressure's of cauldron balance, prevent that the product from meetting oxygen oxidation.
Description
Technical Field
The utility model relates to a thermoplastic polyurethane elastomer production facility technical field, in particular to reation kettle is used to anti migration thermoplastic polyurethane elastomer.
Background
The anti-migration thermoplastic polyurethane elastomer is one of thermoplastic polyurethane elastomer rubbers (TPU), and has wide application. In the preparation process, polyester polyol raw materials are added into a reaction kettle, and proper antioxidants, catalysts and other auxiliary reagents are matched to perform chemical reaction at the temperature of 100-200 ℃ and the air pressure in the kettle of about 0.1MPa, and the polyester polyol is prepared after heat preservation for a period of time. After the reaction in the reaction kettle is finished and before the product is discharged out of the reaction kettle, because the pressure of the air in the kettle is low, the product is directly discharged to cause danger, and therefore, the reaction kettle for preparing the anti-migration thermoplastic polyurethane elastomer is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reation kettle is used to anti migration thermoplastic polyurethane elastomer, main aim at can be through the temperature of the internal portion material of flow rate control cauldron of hot oil to accomplish at the reaction and add nitrogen gas, maintain the internal and external atmospheric pressure's of cauldron balance, prevent that the product from meetting oxygen oxidation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a reaction kettle for anti-migration thermoplastic polyurethane elastomer preparation comprises a kettle body, wherein a stirring motor is arranged in the middle of the top of the kettle body, a stirring shaft is arranged at the bottom power output end of the stirring motor, the bottom of the stirring shaft extends into the inner cavity of the kettle body, a stirring paddle is arranged on the outer wall of one end, extending into the inner cavity of the kettle body, of the stirring shaft, a feed inlet is arranged on the left side of the top of the kettle body, a sealing cover is screwed on the top of the feed inlet, a supporting plate is arranged on the top of the right side wall of the kettle body, a vacuum pump is arranged at the top of the supporting plate, an air suction pipe is arranged at the left air inlet pipe of the vacuum pump, the air inlet end, far away from the vacuum pump, of the air suction pipe penetrates through the side wall of the kettle body and extends into the inner cavity of the kettle body, a, and the barometer is located the below of second pneumatic valve, the outer wall of the cauldron body has cup jointed and has pressed from both sides the cover, the left side wall top that presss from both sides the cover is provided with into oil pipe, and advances oil pipe and stretch into the inner chamber bottom that presss from both sides the cover inner chamber to go out oil end and hug closely the cover, it is provided with liquid flow valve on the oil pipe to advance, the bottom that presss from both sides the cover is provided with out oil pipe, the right side wall that presss from both sides the cover is provided with the overflow pipe, the bottom of the cauldron body is provided with the discharging pipe, and the bottom of discharging pipe stretches out the bottom that presss from both sides the cover, the one end that the discharging pipe stretches out the cover is provided with the bleeder valve, the left side of the cauldron body is provided with the nitrogen gas jar.
Preferably, the bottom of the inner cavity of the kettle body is arc-shaped, so that all materials in the kettle body can be discharged conveniently.
Preferably, the shape of the end of the stirring paddle close to the bottom of the inner cavity of the kettle body is consistent with the shape of the bottom of the inner cavity of the kettle body, so that the stirring paddle can be adapted to the shape of the bottom of the inner cavity of the kettle body while stirring the materials at the bottom of the inner cavity of the kettle body, and the stirring paddle does not collide with the inner wall of the kettle body.
Preferably, the height of the oil inlet pipe is higher than that of the overflow pipe, so that hot oil in the jacket is prevented from flowing back to the oil inlet pipe.
Preferably, the outer wall of the jacket is coated with a heat insulation coating layer, so that heat loss from the outer wall of the jacket is reduced, and heat waste is reduced.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses an advance oil pipe and add hot oil to the heating chamber between jacket and the cauldron body to by the discharge recovery of oil pipe, heat the mixed raw materials in the cauldron body, through the temperature value that the thermometer obtained, change the hot oil velocity of flow of oil pipe through the liquid flow valve control, under the oil temperature certain condition, the same hot oil is longer with the time that exists in the heating chamber, the heating effect is worse, the velocity of flow is faster promptly, heating temperature is higher, the velocity of flow is slower, heating temperature is lower, it is comparatively convenient to the control of heating temperature;
2. the utility model discloses after the reaction is accomplished, through opening gas flow valve, send into the cauldron body by the nitrogen gas pipe nitrogen gas ration in the nitrogen gas jar, not only can maintain the internal and external atmospheric pressure's of cauldron balance, can prevent moreover that the product from meetting oxygen oxidation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-kettle body; 2-a stirring motor; 3-stirring shaft; 4-stirring paddle; 5-a feed inlet; 6-sealing cover; 7-a support plate; 8-a vacuum pump; 9-an air exhaust pipe; 10-a first air valve; 11-a blow-down pipe; 12-a thermometer; 13-barometer; 14-a second air valve; 15-jacket; 16-an oil inlet pipe; 17-liquid flow valve; 18-an oil outlet pipe; 19-a discharge pipe; 20-a discharge valve; a 21-nitrogen tank; a 22-nitrogen gas pipe; 23-gas flow valve; 24-overflow pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in figure 1, the anti-migration thermoplastic polyurethane elastomer preparation reaction kettle comprises a kettle body 1, wherein the bottom of an inner cavity of the kettle body 1 is arc-shaped, so that materials in the kettle body 1 can be completely discharged, a stirring motor 2 is arranged in the middle of the top of the kettle body 1, a stirring shaft 3 is arranged at the power output end of the bottom of the stirring motor 2, the bottom of the stirring shaft 3 extends into the inner cavity of the kettle body 1, a stirring paddle 4 is arranged on the outer wall of one end, extending into the inner cavity of the kettle body 1, of the stirring shaft 3, the shape of one end, close to the bottom of the inner cavity of the kettle body 1, of the stirring paddle 4 is consistent with the shape of the bottom of the inner cavity of the kettle body 1, so that the stirring paddle 4 can adapt to the shape of the bottom of the inner cavity of the kettle body 1 while stirring the materials at the bottom of the inner cavity of the kettle body 1, the stirring paddle 4, a supporting plate 7 is arranged at the top of the right side wall of the kettle body 1, a vacuum pump 8 is arranged at the top of the supporting plate 7, an exhaust pipe 9 is arranged at a left air inlet pipe of the vacuum pump 8, an air inlet end of the exhaust pipe 9 far away from the vacuum pump 8 penetrates through the side wall of the kettle body 1 and extends into the inner cavity of the kettle body 1, a first air valve 10 is arranged on the exhaust pipe 9, a vent pipe 11 and a thermometer 12 are arranged at the right side of the top of the kettle body 1, an air pressure gauge 13 and a second air valve 14 are arranged on the vent pipe 11, the air pressure gauge 13 is positioned below the second air valve 14, a jacket 15 is sleeved on the outer wall of the kettle body 1, a heat insulation coating layer is coated on the outer wall of the jacket 15, the loss of heat from the outer wall of the jacket 15 is reduced, the waste of heat is reduced, an oil inlet pipe 16 is arranged at the top of the left side wall of the, the bottom that presss from both sides cover 15 is provided with out oil pipe 18, the right side wall that presss from both sides cover 15 is provided with overflow pipe 24, advance oil pipe 16's height that highly is higher than overflow pipe 24, prevent to press from both sides the hot oil refluence that presss from both sides in the cover 15 and get into oil pipe 16, the bottom of the cauldron body 1 is provided with discharging pipe 19, and the bottom of discharging pipe 19 stretches out the bottom that presss from both sides cover 15, discharging pipe 19 stretches out the one end that presss from both sides cover 15 and is provided with bleeder valve 20, the left side of the cauldron body 1 is provided with nitrogen gas jar 21, the top end of giving vent to anger of nitrogen gas jar 21 is provided with nitrogen gas pipe 22, and nitrogen gas.
In the specific application of this embodiment, in the process of preparing the anti-migration thermoplastic polyurethane elastomer, the sealing cover 6 is first opened, the raw material and the auxiliary reagent are added through the feed inlet 5, after the liquid level in the inner cavity of the kettle body 1 is immersed in the measuring end at the bottom of the thermometer 12, the sealing cover 6 is covered, the vacuum pump 8 is then started, the first air valve 10 is opened, the gas in the kettle body 1 is pumped out through the exhaust tube 9, the air pressure in the inner cavity of the kettle body 1 is reduced, after the value is determined to reach the designed air pressure through the barometer 13, the vacuum pump 8 and the first air valve 10 are closed, the stirring motor 3 is then started, the stirring motor 3 drives the stirring shaft 4 at the bottom power output end to rotate, so that the stirring paddle 5 stirs the mixed raw material in the inner cavity of the kettle body 1, hot oil is added into the heating cavity between the jacket 15 and the kettle body 1 through the oil inlet tube, the mixed raw materials in the kettle body 1 are heated, the flow rate of hot oil which is controlled by a liquid flow valve 17 to an oil inlet pipe 16 is changed through a temperature value obtained by a thermometer 12, and under the condition that the oil temperature is constant, the longer the same hot oil exists in a heating cavity, the poorer the heating effect is, namely, the faster the flow rate is, the higher the heating temperature is, the slower the flow rate is and the lower the heating temperature is. After the reaction is finished for a period of time, the gas flow valve 23 is opened, nitrogen in the nitrogen tank 21 is quantitatively sent into the kettle body 1 through the nitrogen pipe 22, and after the kettle body 1 is balanced with the external air pressure, the discharge valve 20 is opened and discharged through the discharge pipe 19.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A reation kettle is used to anti migration thermoplastic polyurethane elastomer preparation which characterized in that: comprises a kettle body (1), wherein a stirring motor (2) is arranged in the middle of the top of the kettle body (1), a stirring shaft (3) is arranged at the bottom power output end of the stirring motor (2), the bottom of the stirring shaft (3) extends into the inner cavity of the kettle body (1), a stirring paddle (4) is arranged on the outer wall of one end of the stirring shaft (3) extending into the inner cavity of the kettle body (1), a feed inlet (5) is arranged on the left side of the top of the kettle body (1), a sealing cover (6) is screwed on the top of the feed inlet (5), a supporting plate (7) is arranged on the top of the right side wall of the kettle body (1), a vacuum pump (8) is arranged on the top of the supporting plate (7), an exhaust pipe (9) is arranged at the left air inlet pipe of the vacuum pump (8), and the air inlet end of the exhaust pipe (9) far away from the vacuum pump (8, the device is characterized in that a first air valve (10) is arranged on the air suction pipe (9), an air release pipe (11) and a thermometer (12) are arranged on the right side of the top of the kettle body (1), an air pressure gauge (13) and a second air valve (14) are arranged on the air release pipe (11), the air pressure gauge (13) is positioned below the second air valve (14), a jacket (15) is sleeved on the outer wall of the kettle body (1), an oil inlet pipe (16) is arranged on the top of the left side wall of the jacket (15), the oil outlet end of the oil inlet pipe (16) extending into the inner cavity of the jacket (15) is tightly attached to the bottom of the inner cavity of the jacket (15), a liquid flow valve (17) is arranged on the oil inlet pipe (16), an oil outlet pipe (18) is arranged at the bottom of the jacket (15), an overflow pipe (24) is arranged on the right side wall of the jacket (15), a discharge pipe (19) is arranged at the bottom of the kettle body (1, discharging pipe (19) stretch out the one end that presss from both sides cover (15) and be provided with bleeder valve (20), the left side of the cauldron body (1) is provided with nitrogen gas jar (21), the top of nitrogen gas jar (21) is given vent to anger the end and is provided with nitrogen gas pipe (22), and nitrogen gas pipe (22) run through the top left side of the cauldron body (1) and stretch into the inner chamber of the cauldron body (1), be provided with gas flow valve (23) on nitrogen gas pipe (22).
2. The transfer-resistant thermoplastic polyurethane elastomer-making reaction kettle according to claim 1, wherein: the bottom of the inner cavity of the kettle body (1) is arc-shaped.
3. The transfer-resistant thermoplastic polyurethane elastomer-making reaction kettle according to claim 1, wherein: the shape of one end of the stirring paddle (4) close to the bottom of the inner cavity of the kettle body (1) is consistent with the shape of the bottom of the inner cavity of the kettle body (1).
4. The transfer-resistant thermoplastic polyurethane elastomer-making reaction kettle according to claim 1, wherein: the height of the oil inlet pipe (16) is higher than that of the overflow pipe (24).
5. The transfer-resistant thermoplastic polyurethane elastomer-making reaction kettle according to claim 1, wherein: the outer wall of the jacket (15) is coated with a heat insulation coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231683.6U CN210449176U (en) | 2019-08-01 | 2019-08-01 | Anti-migration reaction kettle for thermoplastic polyurethane elastomer preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231683.6U CN210449176U (en) | 2019-08-01 | 2019-08-01 | Anti-migration reaction kettle for thermoplastic polyurethane elastomer preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210449176U true CN210449176U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921231683.6U Active CN210449176U (en) | 2019-08-01 | 2019-08-01 | Anti-migration reaction kettle for thermoplastic polyurethane elastomer preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210449176U (en) |
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2019
- 2019-08-01 CN CN201921231683.6U patent/CN210449176U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An anti migration thermoplastic polyurethane elastomer standby reactor Effective date of registration: 20220401 Granted publication date: 20200505 Pledgee: Zijin Trust Co.,Ltd. Pledgor: Nanjing Jinqi Chemical Industry Group Co.,Ltd. Registration number: Y2022980003743 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230421 Granted publication date: 20200505 Pledgee: Zijin Trust Co.,Ltd. Pledgor: Nanjing Jinqi Chemical Industry Group Co.,Ltd. Registration number: Y2022980003743 |