CN217568726U

CN217568726U - Nitrogen seal reaction device for TPU production

Info

Publication number: CN217568726U
Application number: CN202221074500.6U
Authority: CN
Inventors: 陈盛
Original assignee: Zhongtian Kosen Shanghai Enterprise Development Co ltd
Current assignee: Zhongtian Kesheng Technology Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-10-14
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a TPU production is with nitrogen sealing reaction unit belongs to TPU membrane production technical field. The device comprises a reaction kettle, a stirring assembly and an arc-shaped pipe, wherein the top of the reaction kettle is provided with a nitrogen inlet valve and a nitrogen outlet valve; the stirring assembly comprises a rotating pipe which is rotatably arranged in the reaction kettle, the bottom end of the rotating pipe is communicated with the arc-shaped pipe, and a plurality of air outlets are formed in the inner wall of the arc-shaped pipe; a rhombus tube which is coaxial with the rotating tube is fixed on the top of the inner kettle of the reaction kettle, an air inlet hole which is positioned in the rhombus tube is formed in the side wall of the rotating tube, a one-way air inlet sliding plate is arranged in the rhombus tube in a sliding mode, an inclined annular groove is formed in the outer wall of the rotating tube, and a fixing block which is connected with the inclined annular groove in a sliding mode is fixed on the one-way air inlet sliding plate. The utility model discloses can carry out nitrogen to the polymer in the reation kettle and seal the protection, simultaneously when the stirring subassembly starts, can continuously aerify in to the polymer, make the polymer granule upwards surge, be favorable to polymerization to go on when getting rid of oxygen efficiency.

Description

Nitrogen seal reaction device for TPU production

Technical Field

The utility model relates to a TPU production is with nitrogen sealing reaction unit belongs to TPU membrane production technical field.

Background

The reaction kettle is a pressure vessel used for completing the processes of vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and the like, wherein the reaction kettle is a main device for preparing high molecular compounds such as TPU and the like.

At present, a nitrogen inflation inlet is formed in the reaction preparation process of TPU in a reaction kettle, the air in the reaction kettle is discharged through nitrogen, the oxidation of materials and the air is reduced, in the prior art, the nitrogen in the reaction kettle is kept standing after the completion of the filling, the action between the nitrogen and the materials cannot be realized, and the reaction efficiency of subsequent materials is reduced.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the utility model provides a TPU production is with nitrogen sealing reaction unit, it has solved among the prior art in the reation kettle nitrogen gas fill the completion after mostly keep stewing, can not act on with between the material, reduced the reaction efficiency's of follow-up material problem.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

a nitrogen seal reaction device for TPU production comprises a reaction kettle, a stirring assembly and an arc-shaped pipe, wherein the top of the reaction kettle is provided with a nitrogen inlet valve and a nitrogen outlet valve;

the stirring assembly comprises a rotating pipe which is rotatably arranged in the reaction kettle, the bottom end of the rotating pipe is communicated with the arc-shaped pipe, and a plurality of air outlets are formed in the inner wall of the arc-shaped pipe;

the reation kettle's interior cauldron top be fixed with the rhombus pipe of commentaries on classics pipe with the axle center, the lateral wall of commentaries on classics pipe has been seted up and has been located inlet port in the rhombus pipe, it has one-way slide of admitting air to one-way slide of admitting air when reciprocating to the inlet port admits air, one-way slide of admitting air with commentaries on classics pipe movable sleeve establishes, the slope annular has been seted up to the outer wall of commentaries on classics pipe, one-way slide of admitting air go up be fixed with slope annular sliding connection's fixed block.

As a preferred example, the one-way air inlet sliding plate comprises a movable plate, a rotating plate and a torsion spring, wherein the side wall of the movable plate is provided with an opening used for rotating the rotating plate towards one side of the air inlet, one end of the rotating plate is rotatably connected with the movable plate through a rotating shaft, the torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively fixed with the side wall of the opening and the side wall of the rotating plate.

As a preferable example, a sealing ring which is mutually abutted with the rhombic pipe is fixedly sleeved on the movable plate.

As a preferred example, the opening on the movable plate is provided with three, and the cross section of the opening is T-shaped.

As a preferable example, the inclined ring grooves on the outer wall of the rotating pipe are staggered with two.

As a preferred example, the stirring assembly further comprises a driving motor and a stirring blade, the driving motor is installed at the top of the reaction kettle, an output shaft is in transmission connection with the rotating pipe, and the stirring blade is fixedly sleeved with the rotating pipe and located in the reaction kettle.

As a preferable example, the rotating pipe is movably sleeved with a positioning frame, and the positioning frame is fixed with the reaction kettle.

The utility model has the advantages that: the utility model discloses can carry out nitrogen to the polymer in the reation kettle and seal the protection, simultaneously when stirring the subassembly and start, can continuously aerify in to the polymer, make the polymer granule upwelling, be favorable to the efficiency that polymerization goes on when getting rid of oxygen.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of portion A of FIG. 1;

FIG. 3 is a schematic structural view of the transfer pipe and the inclined ring groove of the present invention;

fig. 4 is a schematic structural view of the middle movable plate and the fixed block of the present invention.

In the figure: 1. a reaction kettle; 2. a nitrogen gas inlet valve; 3. a nitrogen outlet valve; 4. an arc-shaped tube; 5. pipe rotation; 6. a rhombus tube; 7. a one-way air inlet sliding plate; 71. a movable plate; 72. rotating the plate; 73. a torsion spring; 74. a seal ring; 8. inclining the ring groove; 9. a fixed block; 10. a drive motor; 11. stirring blades; 12. a positioning frame.

Detailed Description

In order to understand the technical means, creation features, achievement purposes and functions of the present invention easily, the present invention will be further explained by combining with the specific drawings.

As shown in figures 1-4, the nitrogen sealing reaction device for the TPU production comprises a reaction kettle 1, a stirring component and an arc-shaped pipe 4, wherein the top of the reaction kettle is provided with a nitrogen inlet valve 2 and a nitrogen outlet valve 3, and the arc-shaped pipe 4 is closed at two ends.

Specifically, the stirring assembly comprises a rotating pipe 5 which is rotatably arranged in the reaction kettle 1, the bottom end of the rotating pipe 5 is communicated with the arc-shaped pipe 4, and a plurality of air outlets are formed in the inner wall of the arc-shaped pipe 4. External nitrogen is filled into the reaction kettle 1 through the nitrogen inlet valve 2, redundant nitrogen is discharged through the nitrogen outlet valve 3, and then through the air outlet holes formed in the arc-shaped pipe 4, after the nitrogen in the rotating pipe 5 is filled into the arc-shaped pipe 4, the gas is discharged through the air outlet holes, so that bubbles are discharged upwards from the bottom of the reaction kettle 1, polymer particles are enabled to surge upwards, and the polymerization reaction is facilitated while oxygen is removed.

In some specific implementation modes, the rotating pipe 5 is movably sleeved with the positioning frame 12, and the positioning frame 12 is fixed with the reaction kettle 1, so that the rotating stability of the rotating pipe 5 is improved.

In this embodiment, reation kettle 1's interior cauldron top is fixed with the rhombus pipe 6 with the axle center with rotating pipe 5, the inlet port that is located rhombus pipe 6 is seted up to rotating pipe 5's lateral wall, it has one-way slide 7 that admits air to slide in rhombus pipe 6, admit air to the inlet port when one-way slide 7 that admits air reciprocates, one-way slide 7 that admits air is established with rotating pipe 5 movable sleeve, slope annular 8 has been seted up to rotating pipe 5's outer wall, be fixed with on the one-way slide 7 that admits air with slope annular 8 sliding connection's fixed block 9, rotating pipe 5 through stirring subassembly rotates, can make slope annular 8 rotate, and because rhombus pipe 6 has restricted one-way slide 7's rotation that admits air, and then make slope annular 8 rotate and to make fixed block 9 up-and-down reciprocating motion.

When the unidirectional air inlet sliding plate 7 moves upwards, nitrogen in the rhombic tube 6 is pressed into the rotary tube 5 through the air inlet and is discharged through the air outlet on the arc-shaped tube 4; when the one-way air inlet sliding plate 7 moves downwards, the one-way air inlet sliding plate 7 can be ventilated, so that external nitrogen can be refilled into the rhombic tube 6, and the next air compression is facilitated.

In a specific implementation manner, the one-way air intake sliding plate 7 includes a movable plate 71, a rotating plate 72 and a torsion spring 73, an opening for the rotating plate 72 to rotate towards one side of the air intake is opened on a side wall of the movable plate 71, one end of the rotating plate 72 is rotatably connected with the movable plate 71 through a rotating shaft, the torsion spring 73 is sleeved on the rotating shaft, and two ends of the torsion spring are respectively fixed with the side wall of the opening and the side wall of the rotating plate 72. During the upward movement of the movable plate 71, the internal pressure of the rhombic tube 6 can push the rotating plate 72 to close the opening; when the movable plate 71 moves downward, the torsion force of the torsion spring 73 can automatically open the rotary plate 72, so that the external air of the rhombic tube 6 is filled into the interior thereof.

In some specific implementations, the movable plate 71 is fixedly sleeved with a sealing ring 74 which is abutted against the rhombic tube 6, so as to improve the sealing performance when the movable plate 71 moves.

In a preferred embodiment of the present invention, three openings are provided in the movable plate 71, and the cross section of the openings is T-shaped, so that the efficiency of air intake can be improved, and the T-shaped openings can limit the rotation direction of the rotating plate 72.

In the preferred embodiment, two inclined ring grooves 8 are alternately arranged on the outer wall of the rotating pipe 5, so as to improve the stability of the moving plate 71 moving upwards or downwards.

In a specific implementation mode, the stirring assembly further comprises a driving motor 10 and a stirring blade 11, the driving motor 10 is installed at the top of the reaction kettle 1, the output shaft is in transmission connection with the rotating pipe 5, the stirring blade 11 is fixedly sleeved with the rotating pipe 5 and is located in the reaction kettle 1, and the rotating pipe 5 can be stably driven to rotate.

The working principle is as follows: when the device is used, external nitrogen is filled into the reaction kettle 1 through the nitrogen inlet valve 2, redundant nitrogen is discharged through the nitrogen outlet valve 3, the inclined ring groove 8 can be rotated through the rotation of the rotating pipe 5 of the stirring assembly, and the diamond pipe 6 limits the rotation of the one-way air inlet sliding plate 7, so that the inclined ring groove 8 rotates to enable the fixing block 9 to vertically reciprocate. When the movable plate 71 moves upwards, the internal pressure of the rhombic tube 6 can push the rotating plate 72 to close the opening, so that nitrogen in the rhombic tube 6 can be pressed into the rotating tube 5 through the air inlet and discharged through the air outlet on the arc-shaped tube 4; after the nitrogen in the rotating pipe 5 is filled into the arc-shaped pipe 4, the gas is discharged through the gas outlet, so that bubbles are discharged upwards from the bottom of the reaction kettle 1, polymer particles are enabled to surge upwards, and the efficiency of the polymerization reaction is facilitated while oxygen is removed; when the movable plate 71 moves downward, the torsion of the torsion spring 73 can automatically open the rotary plate 72, so that the air outside the rhombic tube 6 is filled into the interior thereof.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a TPU production is with nitrogen sealing reaction unit which characterized in that: comprises a reaction kettle (1) with a nitrogen inlet valve (2) and a nitrogen outlet valve (3) arranged at the top, a stirring component and an arc-shaped pipe (4) with two closed ends;

the stirring assembly comprises a rotating pipe (5) rotatably arranged in the reaction kettle (1), the bottom end of the rotating pipe (5) is communicated with the arc-shaped pipe (4), and a plurality of air outlets are formed in the inner wall of the arc-shaped pipe (4);

the interior cauldron top of reation kettle (1) be fixed with the rhombus pipe (6) of trompil (5) with the axle center, the lateral wall of trompil (5) has been seted up and has been located inlet port in rhombus pipe (6), it has one-way slide (7) of admitting air to slide in rhombus pipe (6) one-way slide (7) of admitting air when reciprocating to the inlet port admits air, one-way slide (7) of admitting air with trompil (5) movable sleeve is established, slope annular (8) have been seted up to the outer wall of trompil (5), one-way slide (7) of admitting air go up be fixed with slope annular (8) sliding connection's fixed block (9).

2. The nitrogen-sealed reaction device for TPU production according to claim 1, wherein: one-way air inlet slide (7) are including fly leaf (71), commentaries on classics board (72) and torsional spring (73), the lateral wall of fly leaf (71) is seted up and is used for commentaries on classics board (72) is towards air inlet one side pivoted opening, the one end of commentaries on classics board (72) through the pivot with fly leaf (71) rotate to be connected, torsional spring (73) cover is located in the pivot, and both ends are fixed with the lateral wall of open-ended lateral wall and commentaries on classics board (72) respectively.

3. The nitrogen-sealed reaction device for TPU production according to claim 2, wherein: the movable plate (71) is fixedly sleeved with a sealing ring (74) which is mutually abutted with the rhombic tube (6).

4. The nitrogen-sealed reaction device for TPU production according to claim 2, wherein: three openings are formed in the movable plate (71), and the cross section of each opening is T-shaped.

5. The nitrogen-sealed reaction device for TPU production according to claim 1, wherein: the inclined ring grooves (8) on the outer wall of the rotating pipe (5) are arranged in a staggered mode.

6. The nitrogen-sealed reaction device for TPU production according to claim 1, wherein: the stirring assembly further comprises a driving motor (10) and a stirring blade (11), the driving motor (10) is installed on the top of the reaction kettle (1), an output shaft is connected with the rotating pipe (5) in a transmission mode, and the stirring blade (11) is fixedly sleeved with the rotating pipe (5) and is located in the reaction kettle (1).

7. The nitrogen-sealed reaction device for TPU production according to claim 1, wherein: the rotating pipe (5) is movably sleeved with a positioning frame (12), and the positioning frame (12) is fixed with the reaction kettle (1).