Distillation kettle for processing crude dioctyl terephthalate

Abstract

The utility model relates to the technical field of distillation kettles, in particular to a distillation kettle for processing crude dioctyl terephthalate, which comprises a supporting base, a mounting shell, a distillation kettle body and a sealing cover, a homogeneous mixing mechanism is arranged in the distillation kettle body, an anti-sticking mechanism is arranged on the side edge of the homogeneous mixing mechanism, and the sealing cover is arranged on the side edge of the homogeneous mixing mechanism. When the distillation kettle for crude dioctyl terephthalate processing is used, a stirring shaft rotates to synchronously drive stirring blades and limiting scrapers to rotate, and when the stirring blades rotate, crude dioctyl terephthalate in the distillation kettle is mainly stirred; when the limiting scraping plate rotates, the crude dioctyl terephthalate raw material adhered to the inner wall of the distillation kettle is mainly scraped off in time to continuously participate in mixing, and the crude dioctyl terephthalate is processed in a dynamic mixing manner, so that the problem that the material is adhered to the inner wall of the distillation kettle is reduced to a great extent; and on the basis of improving the utilization rate of raw materials, the cleaning work of subsequent devices is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation kettles, in particular to a distillation kettle for processing crude dioctyl terephthalate. Background Art

[0002] A still for crude dioctyl terephthalate processing is a device specifically used to process crude dioctyl terephthalate raw materials. It separates impurities and impure substances from the raw materials through distillation to obtain pure dioctyl terephthalate products. The still is usually composed of a heating system, a distillation tower, a cooling system, and other components. It can perform distillation operations under controlled temperature and pressure conditions. This equipment is widely used in the chemical industry to produce chemical products such as dioctyl terephthalate.

[0003] Since crude dioctyl terephthalate is a relatively viscous substance, a large amount of crude dioctyl terephthalate material will remain on the inner wall of the distillation kettle after processing, making it difficult to clean and affecting the production of the next batch of products. However, the existing device has not made any improvements to this problem, and the overall practical effect is poor. Utility Model Content

[0004] The purpose of the present utility model is to solve the above-mentioned problem and propose a distillation kettle for processing crude dioctyl terephthalate, which improves the problem that a large amount of crude dioctyl terephthalate material will remain on the inner wall of the existing distillation kettle after processing, making it difficult to clean and affecting the production of the next batch of products.

[0005] A distillation kettle for processing crude dioctyl terephthalate, comprising a supporting base, a mounting shell, a distillation kettle body and a sealing cover: the top outer wall of the supporting base is provided with a mounting shell, the bottom inner wall of the mounting shell is provided with a distillation kettle body, the top outer wall of the distillation kettle body is provided with a sealing cover, the top outer wall of the sealing cover is provided with a feed pipe and an exhaust pipe, the side outer wall of the distillation kettle body located at the bottom is provided with a discharge pipe, and a control valve is provided on the outside of the discharge pipe, the interior of the distillation kettle body is provided with a homogeneous mixing mechanism, the side of the homogeneous mixing mechanism is provided with an anti-sticking mechanism, the side of the distillation kettle body is provided with a heating control mechanism, the homogeneous mixing mechanism, a driving motor, a stirring shaft and a stirring blade, the top outer wall of the sealing cover is provided with a driving motor, the driving motor is connected to the top outer wall of the stirring shaft, the bottom outer wall of the stirring shaft is in contact with the bottom inner wall of the distillation kettle body, and the outside of the stirring shaft is provided with a stirring blade.

[0006] Preferably, the anti-sticking mechanism includes a limiting scraper, and the limiting scraper is provided on the side outer wall of the stirring shaft at the bottom end.

[0007] Preferably, the limiting scraper is arranged in a "U" shape, and the side outer wall of the limiting scraper is in contact with the side inner wall of the distillation kettle body.

[0008] Preferably, the heating control mechanism includes a heating wire, a power supply and a controller. The heating wire is embedded in the interior of the mounting shell, the top outer wall of the support base is provided with a power supply, and the side of the power supply is provided with a controller.

[0009] Preferably, the controller is connected to the top outer wall of the support base, the power supply and the controller are both arranged inside the protective cover, and the bottom outer wall of the protective cover is connected to the top outer wall of the support base.

[0010] Preferably, a heat-conducting ring is fitted on the top outer wall of the mounting shell, and the heat-conducting ring is connected to the side outer wall of the distillation kettle body.

[0011] Preferably, a heat-conducting rod is provided on the side outer wall of the heat-conducting ring, the heat-conducting rod is connected to a temperature monitoring sensor, and the temperature monitoring sensor is connected to the side inner wall of the support cover.

[0012] Preferably, the bottom outer wall of the support cover is connected to the top outer wall of the auxiliary support shaft, and the bottom outer wall of the auxiliary support shaft is connected to the top outer wall of the protective cover.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the distillation kettle for processing crude dioctyl terephthalate is in use, the stirring blade and the limiting scraper are synchronously driven to rotate by the rotation of the stirring shaft. When the stirring blade rotates, the crude dioctyl terephthalate inside the distillation kettle is mainly stirred, and when the limiting scraper rotates, the crude dioctyl terephthalate raw material adhered to the inner wall of the distillation kettle is mainly scraped off in time for further mixing. Furthermore, through the above arrangement, the crude dioctyl terephthalate raw material is not easily adhered to the inner wall of the distillation kettle during processing. The crude dioctyl terephthalate is processed by dynamic mixing, which greatly reduces the problem of material sticking to the inner wall of the distillation kettle. On the basis of improving the utilization rate of raw materials, the cleaning work of subsequent devices is simplified, and the overall practical effect is good.

[0015] 2. When the distillation kettle for processing crude dioctyl terephthalate is in use, since the temperature of the distillation kettle for processing crude dioctyl terephthalate needs to be strictly controlled during the processing, if the temperature control is unstable, it may lead to unstable product quality or low production efficiency. Therefore, a design is adopted in which the temperature of the distillation kettle is transmitted in real time through a heat-conducting ring and the opening and closing of the power supply component is controlled in real time in conjunction with a temperature monitoring sensor. As the power supply component is opened and closed, the heating wire is automatically controlled to heat. Through the above design, the internal temperature of the device can be automatically controlled in real time according to the processing requirements of crude dioctyl terephthalate, thereby ensuring the quality of the subsequent crude dioctyl terephthalate processing products on the basis of stable operating temperature of the device, and the overall practical effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the homogeneous mixing mechanism of the present utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the anti-sticking mechanism of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the heating control mechanism of the present invention.

[0021] In the figure: 1. Support base; 2. Mounting shell; 3. Distillation kettle body; 4. Sealing cover; 5. Homogeneous mixing mechanism; 51. Driving motor; 52. Stirring shaft; 53. Stirring blade; 6. Anti-sticking mechanism; 61. Limiting scraper; 7. Heating control mechanism; 71. Heating wire; 72. Power supply; 73. Controller; 74. Protective cover; 75. Heat-conducting ring; 76. Heat-conducting rod; 77. Temperature monitoring sensor; 78. Support cover; 79. Auxiliary support shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] When implementing: Figure 1-5As shown, a distillation kettle for processing crude dioctyl terephthalate comprises a supporting base 1, a mounting shell 2, a distillation kettle body 3 and a sealing cover 4: the top outer wall of the supporting base 1 is provided with a mounting shell 2, the bottom inner wall of the mounting shell 2 is provided with a distillation kettle body 3, the top outer wall of the distillation kettle body 3 is provided with a sealing cover 4, the top outer wall of the sealing cover 4 is provided with a feed pipe and an exhaust pipe, the side outer wall of the distillation kettle body 3 at the bottom is provided with a discharge pipe, and a control valve is provided on the outside of the discharge pipe, the interior of the distillation kettle body 3 is provided with a homogeneous mixing mechanism 5, the side of the homogeneous mixing mechanism 5 is provided with an anti-sticking mechanism 6, the side of the distillation kettle body 3 is provided with a heating control mechanism 7, the homogeneous mixing mechanism 5, the driving mechanism 6 ... Motor 51, stirring shaft 52 and stirring blade 53, the top outer wall of the sealing cover 4 is provided with a driving motor 51, the driving motor 51 is connected to the top outer wall of the stirring shaft 52, the bottom outer wall of the stirring shaft 52 is in contact with the bottom inner wall of the distillation kettle body 3, and the outside of the stirring shaft 52 is provided with a stirring blade 53; when it is necessary to mix and homogenize the crude dioctyl terephthalate raw material inside the distillation kettle body 3, it is necessary to turn on the driving motor 51 first. When the driving motor 51 is turned on, it will automatically drive the stirring shaft 52 to rotate and then drive the stirring blade 53 to rotate. As the stirring blade 53 moves along the rotation trajectory, the crude dioctyl terephthalate raw material inside the distillation kettle body 3 will be automatically pushed and mixed.

[0024] The anti-sticking mechanism 6 includes a limiting scraper 61 , and the limiting scraper 61 is provided on the side outer wall of the bottom end of the stirring shaft 52 ; when the above stirring shaft 52 rotates, it will also synchronously drive the limiting scraper 61 to rotate.

[0025] The limiting scraper 61 is set to a "U" shape, and the side outer wall of the limiting scraper 61 is in contact with the side inner wall of the distillation kettle body 3; here the limiting scraper 61 is set to a "U" shape and its outer wall is in contact with the side inner wall of the distillation kettle body 3. When the limiting scraper 61 rotates, it will automatically scrape off the crude dioctyl terephthalate raw material stuck to the inner wall of the distillation kettle body 3 in time to participate in mixing and stirring.

[0026] The heating control mechanism 7 includes a heating wire 71, a power supply 72 and a controller 73. The heating wire 71 is embedded in the interior of the mounting shell 2, and the power supply 72 is provided on the top outer wall of the support base 1. The side of the power supply 72 is provided with a controller 73. The controller 73 is connected to the top outer wall of the support base 1. The power supply 72 and the controller 73 are both provided inside the protective cover 74. The bottom outer wall of the protective cover 74 is connected to the top outer wall of the support base 1. The top outer wall of the mounting shell 2 is fitted with the protective cover 74. A heat-conducting ring 75 is provided, and the heat-conducting ring 75 is connected to the side outer wall of the distillation kettle body 3. The side outer wall of the heat-conducting ring 75 is provided with a heat-conducting rod 76, and the heat-conducting rod 76 is connected to the temperature monitoring sensor 77. The temperature monitoring sensor 77 is connected to the side inner wall of the support cover 78. The bottom outer wall of the support cover 78 is connected to the top outer wall of the auxiliary support shaft 79. The bottom outer wall of the auxiliary support shaft 79 is connected to the top outer wall of the protective cover 74. When the crude dioctyl terephthalate raw material needs to be heated In order to separate the impurities and impure substances in the raw materials by distillation, it is necessary to first set the temperature monitoring value of the temperature monitoring sensor 77, and then control the controller 73 to turn on so that the power supply 72 supplies power to the heating wire 71, and then the heating wire 71 is powered on to generate heat and heats the outer shell of the distillation kettle body 3 by heat transfer, and further heats the crude dioctyl terephthalate raw material inside the distillation kettle body 3 by heat transfer. The setting of the heat-conducting ring 75 and the heat-conducting rod 76 here is convenient for real-time transmission of the temperature of the distillation kettle body 3, and the setting of the temperature monitoring sensor 77 here is convenient for real-time monitoring of the temperature of the heat-conducting rod 76. Once the temperature of the distillation kettle body 3 exceeds the monitoring value of the temperature monitoring sensor 77, the temperature monitoring sensor 77 will automatically transmit the information to the controller 73, and the controller 73 will automatically supply the power supply 72 to stop heating the heating wire 71. In this way, the effect of controlling the heating temperature of the distillation kettle body 3 is achieved through the above control process.

[0027] When the present invention is in use, it is first necessary to pour the crude dioctyl terephthalate raw material to be distilled into the interior of the still body 3 through the feed pipe at the top of the sealing cover 4, and control the driving motor 51 to be turned on. When the driving motor 51 is turned on, it will automatically drive the stirring shaft 52 to rotate and then drive the stirring blade 53 to rotate. As the stirring blade 53 rotates, the crude dioctyl terephthalate raw material inside the still body 3 is automatically pushed and mixed. When the above-mentioned stirring shaft 52 rotates, it will also synchronously drive the limiting scraper 61 to rotate; the limiting scraper 61 is set to a "U" shape and its outer wall is designed to fit the side inner wall of the still body 3. When the limiting scraper 61 rotates, it will automatically scrape the crude dioctyl terephthalate raw material stuck to the inner wall of the still body 3 in time to participate in mixing and stirring;

[0028] When it is necessary to heat the crude dioctyl terephthalate raw material so as to separate the impurities and impure substances in the raw material by distillation, it is necessary to first set the temperature monitoring value of the temperature monitoring sensor 77, and then control the controller 73 to turn on so that the power supply 72 supplies power to the heating wire 71, and then the heating wire 71 is connected to the power supply to generate heat and heat the outer shell of the distillation kettle body 3 by heat transfer, and further heat the crude dioctyl terephthalate raw material inside the distillation kettle body 3 by heat transfer. The arrangement of the heat conducting ring 75 and the heat conducting rod 76 here facilitates the real-time transmission of the distillation temperature. The temperature of the kettle body 3. The setting of the temperature monitoring sensor 77 here facilitates real-time monitoring of the temperature of the heat-conducting rod 76. Once the temperature of the distillation kettle body 3 exceeds the monitoring value of the temperature monitoring sensor 77, the temperature monitoring sensor 77 will automatically transmit the information to the controller 73, and then the controller 73 will automatically supply the power supply 72 to stop heating the heating wire 71. In this way, the effect of controlling the heating temperature of the distillation kettle body 3 is achieved through the above-mentioned control process. It is noted here that the air outlet pipe above the sealing cover 4 needs to be connected to the relevant pipeline according to the existing operating steps so that the steam in the distillation kettle body 3 can be discharged in time.

[0029] It is noted here that the above-mentioned drive motor 51 can be powered by existing technology, whether it is powered by a power supply unit or an external wire. It belongs to the existing technology and will not be described in detail here.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A distillation kettle for processing crude dioctyl terephthalate, characterized in that: The invention comprises a supporting base (1), a mounting shell (2), a distillation kettle body (3) and a sealing cover (4): the top outer wall of the supporting base (1) is provided with a mounting shell (2), the bottom inner wall of the mounting shell (2) is provided with a distillation kettle body (3), the top outer wall of the distillation kettle body (3) is provided with a sealing cover (4), the top outer wall of the sealing cover (4) is provided with a feed pipe and an exhaust pipe, the side outer wall of the distillation kettle body (3) at the bottom is provided with a discharge pipe, and a control valve is provided outside the discharge pipe, and the interior of the distillation kettle body (3) is provided with a homogenizing mixing mechanism (5) The side of the homogenizing and mixing mechanism (5) is provided with an anti-sticking mechanism (6), the side of the distillation kettle body (3) is provided with a heating control mechanism (7), the homogenizing and mixing mechanism (5), the driving motor (51), the stirring shaft (52) and the stirring blade (53), the top outer wall of the sealing cover (4) is provided with a driving motor (51), the driving motor (51) is connected to the top outer wall of the stirring shaft (52), the bottom outer wall of the stirring shaft (52) is in contact with the bottom inner wall of the distillation kettle body (3), and the outside of the stirring shaft (52) is provided with a stirring blade (53).

2. The distillation kettle for processing crude dioctyl terephthalate according to claim 1, characterized in that: The anti-sticking mechanism (6) comprises a limiting scraper (61), and the limiting scraper (61) is arranged on the outer wall of the side of the stirring shaft (52) at the bottom end.

3. The distillation kettle for processing crude dioctyl terephthalate according to claim 2, characterized in that: The limiting scraper (61) is arranged in a "U" shape, and the side outer wall of the limiting scraper (61) is in contact with the side inner wall of the distillation kettle body (3).

4. The distillation kettle for processing crude dioctyl terephthalate according to claim 1, characterized in that: The heating control mechanism (7) comprises a heating wire (71), a power supply (72) and a controller (73); the heating wire (71) is embedded in the interior of the mounting shell (2); the power supply (72) is arranged on the top outer wall of the support base (1); and the controller (73) is arranged on the side of the power supply (72).

5. The distillation kettle for processing crude dioctyl terephthalate according to claim 4, characterized in that: The controller (73) is connected to the top outer wall of the support base (1), the power supply (72) and the controller (73) are both arranged inside the protective cover (74), and the bottom outer wall of the protective cover (74) is connected to the top outer wall of the support base (1).

6. The distillation kettle for processing crude dioctyl terephthalate according to claim 5, characterized in that: A heat-conducting ring (75) is fitted on the top outer wall of the installation shell (2), and the heat-conducting ring (75) is connected to the side outer wall of the distillation kettle body (3).

7. The distillation kettle for processing crude dioctyl terephthalate according to claim 6, characterized in that: A heat-conducting rod (76) is provided on the side outer wall of the heat-conducting ring (75), and the heat-conducting rod (76) is connected to a temperature monitoring sensor (77), and the temperature monitoring sensor (77) is connected to the side inner wall of the support cover (78).

8. The distillation kettle for processing crude dioctyl terephthalate according to claim 7, characterized in that: The bottom outer wall of the support cover (78) is connected to the top outer wall of the auxiliary support shaft (79), and the bottom outer wall of the auxiliary support shaft (79) is connected to the top outer wall of the protective cover (74).

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