Polyester synthesis reactor

Abstract

The utility model discloses a polyester synthetic reaction kettle, it includes: shell and charging cylinder, the top of shell and the top of charging cylinder all are provided with the discharge gate, the bottom of shell is provided with the discharge pipeline, the top of shell is provided with charging cylinder separation subassembly, be provided with feeding assembly on charging cylinder, be provided with pipeline dredging formula stirring subassembly on the shell, be provided with buckle assembly on charging cylinder separation subassembly, feeding assembly includes electric push rod, electric push rod fixed mounting is at the top of charging cylinder, the output shaft of electric push rod is penetrated in the through -hole that charging cylinder top seted up, the output shaft of electric push rod is fixed mounting has the long pole, the bottom fixed mounting of long pole has the sealing block, through above -mentioned's structure, effectively avoid air mixing into the reaction system, prevent oxygen and high temperature melt contact can cause thermal oxidative degradation, and use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a polyester synthesis reaction vessel. Background Technology

[0002] A reaction vessel is a comprehensive reaction container that achieves mixing functions such as heating, evaporation, and cooling required by the process through structural design and parameter configuration. Reactors are widely used in various fields such as petroleum, chemical, rubber, and medical, and are mainly used as pressure vessels to complete processes such as vulcanization, polymerization, and condensation.

[0003] In polyester production, the polyester synthesis reactor is an important core piece of equipment. However, traditional polyester synthesis reactors lack a proper subsequent feeding mechanism, which makes it difficult to continuously replenish raw materials. If the feeding method is open or semi-open, air can easily be mixed into the reaction system. This can cause oxygen to come into contact with the high-temperature melt, leading to thermal oxidation and degradation, which affects polyester synthesis and results in poor performance. Utility Model Content

[0004] The purpose of this utility model is to provide a polyester synthesis reactor. In order to solve the problem that the polyester synthesis reactor is an important core equipment in polyester production, but the traditional polyester synthesis reactor does not have a complete subsequent feeding mechanism, which makes it difficult to continuously replenish raw materials. If the feeding method is open or semi-open, air can easily be mixed into the reaction system, causing oxygen to come into contact with the high temperature melt and triggering thermal oxidation degradation, which affects polyester synthesis and results in poor performance.

[0005] To achieve the above objectives, a polyester synthesis reactor is provided, comprising: an outer shell and a feeding cylinder, wherein the top of the outer shell and the top of the feeding cylinder are both provided with a discharge port, the bottom of the outer shell is provided with a discharge pipe, the top of the outer shell is provided with a feeding cylinder separation component, the feeding cylinder is provided with a feeding component, the outer shell is provided with a pipe-clearing stirring component, and the feeding cylinder separation component is provided with a snap-fit ​​component;

[0006] The feeding assembly includes an electric push rod, which is fixedly installed on the top of the feeding cylinder. The output shaft of the electric push rod passes through a through hole opened on the top of the feeding cylinder. A long rod is fixedly installed on the output shaft of the electric push rod. A sealing block is fixedly installed at the bottom end of the long rod. A connecting ring is fixedly installed on the outer wall of the long rod. A side rod is fixedly installed on the outer wall of the connecting ring. An internal threaded ring is fixedly installed at the other end of the side rod.

[0007] According to the polyester synthesis reactor, an installation rod is rotatably mounted on the inner top of the feeding cylinder, a first threaded rod is fixedly mounted on the bottom end of the installation rod, a drive rod is fixedly mounted on the bottom end of the first threaded rod, a second stirring blade is fixedly mounted on the outer wall of the drive rod, and the inner wall of the internal threaded ring is threaded onto the first threaded rod.

[0008] According to the polyester synthesis reactor, the pipe-dredging type stirring assembly includes a stirring motor, which is fixedly installed on the top of the outer shell. The output shaft of the stirring motor passes through a through hole opened on the top of the outer shell, and a stirring rod is fixedly installed on the output shaft of the stirring motor.

[0009] According to the polyester synthesis reactor, a first stirring blade is fixedly installed on the side wall at the bottom of the stirring rod, and a spiral rod is fixedly installed at the bottom end of the stirring rod, the spiral rod being located inside the discharge pipe.

[0010] According to the polyester synthesis reactor, the feeding cylinder separation assembly includes a base and a ring. The base is fixedly installed on the top of the outer shell, and a feeding cylinder insertion hole is provided on the outer wall of the outer shell.

[0011] According to the polyester synthesis reactor, the upper surface of the base is provided with a slot and a sealing groove, the ring is fixedly installed on the outer wall of the feeding cylinder, and a sealing ring and a locking block are fixedly installed at the bottom of the feeding cylinder.

[0012] According to the polyester synthesis reactor, the snap-fit ​​assembly includes a housing, which is fixedly installed on both sides of the base. A turntable is rotatably installed on the outer wall of the housing, and a drive shaft is fixedly installed on the outer wall of the turntable. A second threaded rod is fixedly installed at the other end of the drive shaft.

[0013] According to the polyester synthesis reactor, an internally threaded telescopic cylinder is threadedly installed on the outer wall of the second threaded rod, and an arc-shaped insert is fixedly installed at one end of the internally threaded telescopic cylinder. A stroke groove is opened on the inner wall of the base, and the arc-shaped insert is slidably installed on the inner wall of the stroke groove. A slot is opened on the outer wall of the feeding cylinder.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] In this invention, a feeding assembly and a feeding cylinder are provided. With this design, raw materials that may need to be added later can be placed into the feeding cylinder first. When the reactor needs to be added again during operation, the feeding assembly can be activated to directly add the raw materials prepared in advance in the feeding cylinder into the reactor. The entire process is in a sealed state, which prevents air from mixing into the reaction system and prevents oxygen from contacting the high-temperature melt and causing thermal oxidation degradation, thereby affecting polyester synthesis. The result is a good product.

[0016] In this invention, a feeding cylinder separation component is provided. This design effectively enables the feeding cylinder to be quickly removed from the reactor, making it easier to maintain the feeding components inside the feeding cylinder, reducing maintenance difficulty, and improving the performance.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a polyester synthesis reactor according to the present invention;

[0020] Figure 2 This is a perspective view of a pipe-clearing stirring assembly in a polyester synthesis reactor according to the present invention.

[0021] Figure 3 This is an exploded view of the feed cylinder separation component in a polyester synthesis reactor according to this utility model;

[0022] Figure 4 This is a perspective view of a feeding assembly in a polyester synthesis reactor according to the present invention.

[0023] Figure 5 This is a perspective view of a snap-fit ​​assembly in a polyester synthesis reactor according to the present invention.

[0024] Legend:

[0025] 1. Outer shell; 2. Discharge pipe; 3. Pipe-clearing mixing assembly; 31. Mixing motor; 32. Mixing rod; 33. First mixing blade; 34. Spiral rod; 4. Feeding cylinder; 5. Feeding assembly; 51. Electric push rod; 52. Long rod; 53. Sealing block; 54. Connecting ring; 55. Side rod; 56. Internal threaded ring; 57. First threaded rod; 58. Mounting rod; 59. Drive rod; 510. Second mixing blade; 6. Feeding cylinder separation assembly; 61. Base; 62. Slot; 63. Sealing ring; 64. Locking block; 65. Circular ring; 66. Sealing groove; 7. Buckle assembly; 71. Slot; 72. Outer shell; 73. Turntable; 74. Drive shaft; 75. Second threaded rod; 76. Internal threaded telescopic cylinder; 77. Arc-shaped insert. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5 This utility model provides a polyester synthesis reactor, which includes: an outer shell 1 and a feeding cylinder 4. The top of the outer shell 1 and the top of the feeding cylinder 4 are both provided with a discharge port. The bottom of the outer shell 1 is provided with a discharge pipe 2. The top of the outer shell 1 is provided with a feeding cylinder separation component 6. The feeding cylinder 4 is provided with a feeding component 5. The outer shell 1 is provided with a pipe-clearing stirring component 3. The feeding cylinder separation component 6 is provided with a snap-fit ​​component 7.

[0028] The feeding assembly 5 includes an electric push rod 51, which is fixedly installed on the top of the feeding cylinder 4. The output shaft of the electric push rod 51 passes through a through hole opened on the top of the feeding cylinder 4. A long rod 52 is fixedly installed on the output shaft of the electric push rod 51. A sealing block 53 is fixedly installed at the bottom end of the long rod 52. A connecting ring 54 is fixedly installed on the outer wall of the long rod 52. A side rod 55 is fixedly installed on the outer wall of the connecting ring 54. An internal threaded ring 56 is fixedly installed at the other end of the side rod 55. An installation rod 58 is rotatably installed on the inner top of the feeding cylinder 4. A first threaded rod 57 is fixedly installed at the bottom end of the installation rod 58. A drive rod 59 is fixedly installed at the bottom end of the first threaded rod 57. A second stirring blade 510 is fixedly installed on the outer wall of the drive rod 59. The inner wall of the internal threaded ring 56 is threaded onto the first threaded rod 57.

[0029] In the polyester synthesis reactor of this invention, when the feeding assembly 5 starts working, the electric push rod 51 is activated as a power source. Its output shaft extends and retracts through the through hole at the top of the feeding cylinder 4, thereby driving the long rod 52 fixedly connected to it to move up and down. The sealing block 53 at the bottom of the long rod 52 changes position as the long rod 52 moves, thereby opening or closing the feeding channel inside the feeding cylinder 4, thus controlling the timing of raw material addition. At the same time, the connecting ring 54 on the outer wall of the long rod 52 moves up and down synchronously with the long rod 52. The connecting ring 54 drives the internal threaded ring 56 to move together via the side rod 55. Since the inner wall of the internal threaded ring 56 is threadedly connected to the first threaded rod 57, when the internal threaded ring 56 moves up and down, it will drive the first threaded rod 57 to rotate. The drive rod 59 at the bottom of the first threaded rod 57 will rotate with the rotation of the first threaded rod 57, thereby driving the second stirring blade 510 on the outer wall of the drive rod 59 to rotate, which will play a stirring role on the raw materials in the feeding cylinder 4, so that the raw materials can be introduced into the outer shell 1 more evenly and faster.

[0030] The pipe-dredging type mixing assembly 3 includes a mixing motor 31, which is fixedly installed on the top of the housing 1. The output shaft of the mixing motor 31 passes through a through hole opened on the top of the housing 1. A mixing rod 32 is fixedly installed on the output shaft of the mixing motor 31. A first mixing blade 33 is fixedly installed on the side wall at the bottom of the mixing rod 32. A spiral rod 34 is fixedly installed at the bottom end of the mixing rod 32. The spiral rod 34 is located inside the discharge pipe 2.

[0031] In the polyester synthesis reactor of this utility model, when the pipeline unblocking stirring assembly 3 is working, the stirring motor 31, as the core power device, is started. Its output shaft passes through the through hole opened at the top of the outer shell 1 and extends into the interior of the outer shell 1, driving the stirring rod 32, which is fixedly connected to it, to rotate. The first stirring blade 33 on the bottom side wall of the stirring rod 32 rotates synchronously with the stirring rod 32, and fully stirs the raw materials of the polyester synthesis reaction inside the outer shell 1, so as to promote the uniform mixing of the raw materials and accelerate the reaction process. At the same time, the spiral rod 34 at the bottom of the stirring rod 32 also rotates with the stirring rod 32. Since the spiral rod 34 is located inside the discharge pipe 2, it can push the raw materials in the discharge pipe 2 during its rotation, effectively preventing the raw materials from accumulating and blocking in the discharge pipe 2, and ensuring that the raw materials after the reaction can be smoothly discharged through the discharge pipe 2, thus realizing the coordinated work of stirring reaction and pipeline unblocking.

[0032] The feeding cylinder separation assembly 6 includes a base 61 and a ring 65. The base 61 is fixedly installed on the top of the outer shell 1. A feeding cylinder insertion hole is provided on the outer wall of the outer shell 1. A slot 62 and a sealing groove 66 are provided on the upper surface of the base 61. The ring 65 is fixedly installed on the outer wall of the feeding cylinder 4. A sealing ring 63 and a locking block 64 are fixedly installed at the bottom of the feeding cylinder 4.

[0033] In the polyester synthesis reactor of this invention, the feeding cylinder separation assembly 6 is used for the detachable connection and sealing between the feeding cylinder 4 and the outer shell 1. When installing the feeding cylinder 4, align the feeding cylinder 4 with the feeding cylinder insertion hole opened on the outer wall of the outer shell 1, so that the locking block 64 at the bottom of the feeding cylinder 4 corresponds to the locking groove 62 on the upper surface of the base 61, and at the same time align the sealing ring 63 at the bottom of the feeding cylinder 4 with the sealing groove 66 on the base 61. Then, place the feeding cylinder 4 downwards, and the locking block 64 will be embedded in the locking groove 62, realizing the initial locking and fixing of the feeding cylinder 4 and the base 61, preventing the feeding cylinder 4 from shaking during operation. The material is moved or displaced, and the sealing ring 63 will enter the sealing groove 66 and fit tightly, effectively preventing material leakage from the connection during the feeding process and ensuring the sealing of the reaction environment. The ring 65 fixedly installed on the outer wall of the feeding cylinder 4 can limit the installation position of the feeding cylinder 4, ensuring that the locking block 64 and the sealing ring 63 can be accurately embedded in the corresponding locking groove 62 and sealing groove 66, thereby achieving a stable connection and seal between the feeding cylinder 4 and the outer shell 1. When it is necessary to separate the feeding cylinder 4, simply lift the feeding cylinder 4 upwards to make the locking block 64 disengage from the locking groove 62 and the sealing ring 63 disengage from the sealing groove 66.

[0034] The snap-fit ​​assembly 7 includes a housing 72, which is fixedly installed on both sides of the base 61. A turntable 73 is rotatably installed on the outer wall of the housing 72. A drive shaft 74 is fixedly installed on the outer wall of the turntable 73. A second threaded rod 75 is fixedly installed on the other end of the drive shaft 74. An internal threaded telescopic cylinder 76 is threadedly installed on the outer wall of the second threaded rod 75. An arc-shaped insert 77 is fixedly installed on one end of the internal threaded telescopic cylinder 76. A stroke groove is provided on the inner wall of the base 61. The arc-shaped insert 77 is slidably installed on the inner wall of the stroke groove. A slot 71 is provided on the outer wall of the feeding cylinder 4.

[0035] In the polyester synthesis reactor described in this utility model, the main function of the snap-fit ​​assembly 7 is to further fix the installed feeding cylinder 4 and enhance its stability in connection with the outer shell 1. After the feeding cylinder 4 is initially installed through the feeding cylinder separation assembly 6, the turntable 73 on the outer wall of the sleeve 72 is rotated. The turntable 73 will drive the drive shaft 74 fixedly connected to it to rotate synchronously, thereby causing the second threaded rod 75 at the other end of the drive shaft 74 to rotate accordingly. Since the outer wall of the second threaded rod 75 is threadedly connected to the internal threaded telescopic cylinder 76, when the second threaded rod 75 rotates, the internal threaded telescopic cylinder 76 will move along the axis of the second threaded rod 75. When the internal thread telescopic cylinder 76 is extended and retracted, the arc-shaped insert 77 at one end will move along with it. Since the arc-shaped insert 77 is slidably installed in the travel groove on the inner wall of the base 61, the travel groove will guide the movement direction of the arc-shaped insert 77 and ensure its smooth movement. When the arc-shaped insert 77 is inserted into the slot 71 opened on the outer wall of the feeding cylinder 4 during the movement, it can form a firm snap-fit ​​fixation for the feeding cylinder 4, preventing the feeding cylinder 4 from accidentally falling off during operation. If it is necessary to disassemble the feeding cylinder 4, rotate the turntable 73 in the opposite direction to make the arc-shaped insert 77 exit from the slot 71 and return to the travel groove, thereby releasing the fixation.

[0036] Working Principle: First, the raw materials for polyester synthesis are poured in through the feed inlet at the top of the outer shell 1, and then through the feed inlet at the top of the feeding cylinder 4 for later use. The reactor is started to initiate the polyester synthesis reaction, and simultaneously, the stirring motor 31 is activated. The output shaft of the stirring motor 31 drives the stirring rod 32 to rotate, which in turn drives the first stirring blade 33 to rotate, thus stirring the raw materials inside the outer shell 1. The stirring rod 32 also drives the spiral rod 34 to rotate within the discharge pipe 2, accelerating the discharge rate and preventing blockage. When it is necessary to add more raw materials to the outer shell 1, the electric push rod 51 is activated. The output shaft of the electric push rod 51 drives the long rod 52 to move downwards, which in turn moves the sealing block 53 downwards, opening the feed inlet at the bottom of the feeding cylinder 4, allowing the raw materials to be poured into the outer shell 1. Simultaneously, as the stirring rod 32 moves downwards, it drives the internal threaded ring 56 downwards through the connecting ring 54 and the side rod 55. The inner wall of the internal threaded ring 56 is threadedly connected to the first threaded rod 57. When the internal threaded ring 56 moves down, it drives the first threaded rod 57 to rotate. The rotation of the first threaded rod 57 drives the drive rod 59 to rotate, which in turn drives the second stirring blade 510 to rotate. The second stirring blade 510 stirs the raw material in the feeding cylinder 4, improving the discharge efficiency. When it is necessary to remove the feeding cylinder 4 from the reactor, the turntable 73 is rotated. The rotation of the turntable 73 drives the second threaded rod 75 to rotate through the drive shaft 74. The outer wall of the second threaded rod 75 is threadedly connected to the inner wall of the internal threaded telescopic cylinder 76. The rotation of the second threaded rod 75 drives the internal threaded telescopic cylinder 76 to move on its outer wall. The internal threaded telescopic cylinder 76 drives the arc-shaped insert 77 to move, so that the arc-shaped insert 77 is removed from the slot 71, releasing the fixation of the feeding cylinder 4. The feeding cylinder 4 can then be removed from the base 61, completing the disassembly of the feeding cylinder 4.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A polyester synthesis reactor, comprising: The outer shell (1) and the feeding cylinder (4) are characterized in that the top of the outer shell (1) and the top of the feeding cylinder (4) are provided with a discharge port, the bottom of the outer shell (1) is provided with a discharge pipe (2), the top of the outer shell (1) is provided with a feeding cylinder separation component (6), the feeding cylinder (4) is provided with a feeding component (5), the outer shell (1) is provided with a pipe clearing stirring component (3), and the feeding cylinder separation component (6) is provided with a buckle component (7). The feeding assembly (5) includes an electric push rod (51), which is fixedly installed on the top of the feeding cylinder (4). The output shaft of the electric push rod (51) passes through a through hole opened on the top of the feeding cylinder (4). A long rod (52) is fixedly installed on the output shaft of the electric push rod (51). A sealing block (53) is fixedly installed at the bottom end of the long rod (52). A connecting ring (54) is fixedly installed on the outer wall of the long rod (52). A side rod (55) is fixedly installed on the outer wall of the connecting ring (54). An internal threaded ring (56) is fixedly installed at the other end of the side rod (55).

2. The polyester synthesis reactor according to claim 1, characterized in that, An installation rod (58) is rotatably mounted on the inner top of the feeding cylinder (4). A first threaded rod (57) is fixedly mounted on the bottom end of the installation rod (58). A drive rod (59) is fixedly mounted on the bottom end of the first threaded rod (57). A second stirring blade (510) is fixedly mounted on the outer wall of the drive rod (59). The inner wall of the inner threaded ring (56) is threaded onto the first threaded rod (57).

3. The polyester synthesis reactor according to claim 1, characterized in that, The pipe-dredging mixing assembly (3) includes a mixing motor (31), which is fixedly installed on the top of the outer shell (1). The output shaft of the mixing motor (31) passes through a through hole opened on the top of the outer shell (1), and a mixing rod (32) is fixedly installed on the output shaft of the mixing motor (31).

4. The polyester synthesis reactor according to claim 3, characterized in that, A first stirring blade (33) is fixedly installed on the side wall at the bottom of the stirring rod (32), and a spiral rod (34) is fixedly installed at the bottom end of the stirring rod (32). The spiral rod (34) is located inside the discharge pipe (2).

5. A polyester synthesis reactor according to claim 1, characterized in that, The feeding cylinder separation assembly (6) includes a base (61) and a ring (65). The base (61) is fixedly installed on the top of the outer shell (1), and a feeding cylinder insertion hole is provided on the outer wall of the outer shell (1).

6. The polyester synthesis reactor according to claim 5, characterized in that, The upper surface of the base (61) is provided with a slot (62) and a sealing groove (66). The ring (65) is fixedly installed on the outer wall of the feeding cylinder (4). The bottom of the feeding cylinder (4) is fixedly installed with a sealing ring (63) and a locking block (64).

7. A polyester synthesis reactor according to claim 1, characterized in that, The buckle assembly (7) includes a housing (72), which is fixedly installed on both sides of the base (61). A turntable (73) is rotatably installed on the outer wall of the housing (72), and a drive shaft (74) is fixedly installed on the outer wall of the turntable (73). A second threaded rod (75) is fixedly installed at the other end of the drive shaft (74).

8. A polyester synthesis reactor according to claim 7, characterized in that, The second threaded rod (75) has an internal threaded telescopic cylinder (76) threaded on its outer wall. An arc-shaped insert (77) is fixedly installed at one end of the internal threaded telescopic cylinder (76). A stroke groove is provided on the inner wall of the base (61). The arc-shaped insert (77) is slidably installed on the inner wall of the stroke groove. A slot (71) is provided on the outer wall of the feeding cylinder (4).

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