CN219168422U

CN219168422U - Dioctyl terephthalate esterification kettle

Info

Publication number: CN219168422U
Application number: CN202223554109.9U
Authority: CN
Inventors: 李俊华; 姚宁; 夏涛; 高艳; 刘晓路; 杨允霞
Original assignee: Henan Tianning New Material Technology Co ltd
Current assignee: Henan Tianning New Material Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-13
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a dioctyl terephthalate esterification kettle, in particular to the technical field of dioctyl terephthalate production, which comprises a kettle body, wherein the top of the kettle body is connected with a kettle cover through a hasp, the top end of the kettle cover is fixedly communicated with a feed hopper, the bottom end of the kettle body is fixedly connected with a transparent kettle body, the bottom of the transparent kettle body is provided with an extraction assembly, the extraction assembly comprises a discharge pipe, a first valve, a first material guide pipe, a water pump, a liquid storage tank, a second valve and a second material guide pipe, and the discharge pipe is fixedly communicated with the transparent kettle body. According to the utility model, the dioctyl terephthalate semi-finished product in the discharge pipe is extracted through the first material guide pipe by the operation of the water pump, the first valve is opened, so that byproducts flow out of the kettle body through the discharge pipe, then an alkaline decoloring agent with the mass fraction of 0.5-0.8% of terephthalic acid is added into the kettle body, and finally isooctyl alcohol is removed by heating.

Description

Dioctyl terephthalate esterification kettle

Technical Field

The utility model relates to the technical field of dioctyl terephthalate production, in particular to a dioctyl terephthalate esterification kettle.

Background

Dioctyl terephthalate (DOTP) is a main plastic plasticizer with excellent performance, and has plasticizing performance slightly lower than that of dioctyl phthalate (DOP), better volatility, volume resistivity, compatibility with PVC, temperature resistance, weather resistance and the like, and toxicity greatly lower than that of DOP. DOTP is mainly used as a 7O ℃ temperature resistant cable material, and is used as a preferred plasticizer in PVC plastic cable jackets. It can also be used as a plasticizer for other plastics such as artificial leather films, nitrile rubber, nitrocellulose, polyvinyl butyral, etc. In addition, DOTP has application in paint, paper, lubricant, bidirectional film, plasma plastic bag and artwork, and has very wide prospect.

The utility model of the authority bulletin number CN209715067U discloses a controllable esterification kettle for producing dioctyl terephthalate, the temperature of the esterification kettle is accurately controlled by a temperature sensor, a heater and a site controller, and meanwhile, the site controller also controls the working state of each pump, so that the whole process of the transesterification reaction is more scientifically regulated and controlled;

when the structure is used, the main product dioctyl terephthalate is led into an alcohol extraction kettle for treatment by the output pump, the redundant isooctyl alcohol and the byproduct glycol are led into the condenser by the circulating pump, and the dioctyl terephthalate and the isooctyl alcohol are inconvenient to separate, so that the use effect is poor.

Disclosure of Invention

The technical scheme of the utility model aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and aims to overcome the defects of the prior art, provide a dioctyl terephthalate esterification kettle and solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dioctyl terephthalate esterification kettle, includes the cauldron body, there is the cauldron lid at cauldron body top through the hasp connection, cauldron lid top fixedly connected with feeder hopper, the transparent cauldron body of cauldron body bottom fixedly connected with, transparent cauldron body bottom is equipped with extraction component, extraction component includes discharging pipe, first valve, first passage, water pump, liquid reserve tank, second valve and second passage.

The discharging pipe is fixedly communicated with the transparent kettle body, one end of the first material guiding pipe is fixedly communicated with the discharging pipe, the other end of the first material guiding pipe is fixedly communicated with the water inlet end of the water pump, the water pump is fixedly connected with the liquid storage tank, and the liquid storage tank is fixedly connected with the kettle body.

Further, the first valve is fixedly arranged on the discharging pipe, and the first valve is positioned at the bottom of the first material guiding pipe.

Further, the second valve is fixedly communicated with the bottom end of the liquid storage tank, one end of the second material guiding pipe is fixedly communicated with the second valve, and the other end of the second material guiding pipe is fixedly communicated with the kettle body.

Further, the motor is fixedly connected to the top end of the kettle cover, a rotating shaft is connected to the output shaft of the motor in a coaxial transmission mode, and a plurality of stirring rods are fixedly connected to the rotating shaft.

Furthermore, a heater and a thermometer are fixedly arranged on one side of the kettle body, and the heater is positioned at the bottom of the thermometer.

Further, three supporting seats are fixedly connected to the bottom end of the transparent kettle body.

The utility model has the technical effects and advantages that:

1. according to the utility model, the dioctyl terephthalate semi-finished product in the discharge pipe is extracted through the first material guide pipe by the operation of the water pump, the first valve is opened, so that byproducts flow out of the kettle body through the discharge pipe, then an alkaline decolorizer with the mass fraction of 0.5-0.8% of terephthalic acid is added into the kettle body, and finally isooctyl alcohol is removed by heating;

2. according to the utility model, the fixing between the kettle cover and the kettle body is released by opening the hasp, the kettle cover is taken out, the rotating shaft and the stirring rods are cleaned, the inside of the kettle body is cleaned, the kettle cover is installed in the same way, and the operation is simple and convenient for next use.

Drawings

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a front view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view of the kettle body of the present utility model;

FIG. 4 is a schematic view of the structure of the extraction assembly according to the present utility model;

in the figure: 1. a kettle body; 2. a feed hopper; 3. a motor; 4. a kettle cover; 5. an extraction assembly; 6. a support base; 7. a transparent kettle body; 8. a heater; 9. a thermometer; 10. a rotating shaft; 11. a stirring rod; 501. a discharge pipe; 502. a first valve; 503. a first material guide pipe; 504. a water pump; 505. a liquid storage tank; 506. a second valve; 507. and a second material guiding pipe.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4 of the specification, a dioctyl terephthalate esterification kettle of this embodiment includes a kettle body 1, a kettle cover 4 is connected to the top of the kettle body 1 through a hasp, a feed hopper 2 is fixedly connected to the top end of the kettle cover 4, a transparent kettle body 7 is fixedly connected to the bottom end of the kettle body 1, an extraction assembly 5 is arranged at the bottom of the transparent kettle body 7, and the extraction assembly 5 includes a discharge pipe 501, a first valve 502, a first material guiding pipe 503, a water pump 504, a liquid storage tank 505, a second valve 506 and a second material guiding pipe 507.

The discharging pipe 501 is fixedly communicated with the transparent kettle body 7, one end of the first material guiding pipe 503 is fixedly communicated with the discharging pipe 501, the other end of the first material guiding pipe 503 is fixedly communicated with the water inlet end of the water pump 504, the water pump 504 is fixedly connected with the liquid storage tank 505, the liquid storage tank 505 is fixedly connected with the kettle body 1, the first valve 502 is fixedly arranged on the discharging pipe 501, the first valve 502 is positioned at the bottom of the first material guiding pipe 503, the second valve 506 is fixedly communicated with the bottom end of the liquid storage tank 505, one end of the second material guiding pipe 507 is fixedly communicated with the second valve 506, and the other end of the second material guiding pipe 507 is fixedly communicated with the kettle body 1.

Wherein, pour raw materials and catalyst into the cauldron body 1 through feeder hopper 2, then start heater 8, heater 8 heats the internal portion of cauldron 1, and thermometer 9 detects the internal temperature of cauldron simultaneously, and starter motor 3, motor 3 work drive pivot 10 rotate to drive a plurality of puddlers 11 and rotate, a plurality of puddlers 11 stir raw materials and catalyst in the cauldron body 1, make raw materials and catalyst fully take place the esterification reaction.

Further, motor 3 is fixedly connected with in the top of cauldron lid 4, and motor 3 output shaft coaxial transmission is connected with pivot 10, fixedly connected with a plurality of puddlers 11 in the pivot 10, and cauldron body 1 one side fixed mounting has heater 8 and thermometer 9, and heater 8 is located thermometer 9 bottom.

Wherein thereby open the hasp and remove the fixation between lid 4 and the cauldron body 1, take out lid 4 and wash pivot 10 and a plurality of puddler 11, wash the internal portion of cauldron simultaneously 1, thereby install lid 4, easy operation, convenient use next time.

Further, three supporting seats 6 are fixedly connected with the bottom end of the transparent kettle body 7, so that the transparent kettle body 7 is conveniently supported.

The application method of the embodiment is as follows:

after the esterification reaction is finished, standing and layering are carried out, layering conditions are observed through the transparent kettle body 7, byproducts are located at the top of the dioctyl terephthalate semi-finished product, the water pump 504 is started, the dioctyl terephthalate semi-finished product in the discharge pipe 501 is pumped through the first material guide pipe 503 by the operation of the water pump 504, and is injected into the liquid storage tank 505, after the dioctyl terephthalate semi-finished product is pumped, the first valve 502 is opened, the byproducts flow out of the kettle body 1 through the discharge pipe 501, then an alkaline decoloring agent with the mass fraction of 0.5-0.8% of terephthalic acid is added into the kettle body 1, the second valve 506 is opened, the dioctyl terephthalate semi-finished product flows into the kettle body 1 through the second material guide pipe 507, isooctyl alcohol is removed by heating, the structure is simple, the dioctyl terephthalate and isooctyl alcohol are conveniently separated, and the use effect is good.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a dioctyl terephthalate esterification kettle, includes the cauldron body (1), there is kettle cover (4) at cauldron body (1) top through the hasp connection, there is feeder hopper (2) kettle cover (4) top fixed intercommunication, the transparent cauldron body (7) of cauldron body (1) bottom fixedly connected with, its characterized in that: the bottom of the transparent kettle body (7) is provided with an extraction assembly (5), and the extraction assembly (5) comprises a discharging pipe (501), a first valve (502), a first material guide pipe (503), a water pump (504), a liquid storage tank (505), a second valve (506) and a second material guide pipe (507);

the discharging pipe (501) is fixedly communicated with the transparent kettle body (7), one end of the first material guiding pipe (503) is fixedly communicated with the discharging pipe (501), the other end of the first material guiding pipe (503) is fixedly communicated with the water inlet end of the water pump (504), the water pump (504) is fixedly connected with the liquid storage tank (505), and the liquid storage tank (505) is fixedly connected with the kettle body (1).

2. The dioctyl terephthalate esterification kettle according to claim 1, wherein: the first valve (502) is fixedly arranged on the discharging pipe (501), and the first valve (502) is positioned at the bottom of the first material guiding pipe (503).

3. The dioctyl terephthalate esterification kettle according to claim 1, wherein: the second valve (506) is fixedly communicated with the bottom end of the liquid storage tank (505), one end of the second material guide pipe (507) is fixedly communicated with the second valve (506), and the other end of the second material guide pipe (507) is fixedly communicated with the kettle body (1).

4. The dioctyl terephthalate esterification kettle according to claim 1, wherein: the novel kettle is characterized in that a motor (3) is fixedly connected to the top end of the kettle cover (4), a rotating shaft (10) is coaxially connected to an output shaft of the motor (3) in a transmission mode, and a plurality of stirring rods (11) are fixedly connected to the rotating shaft (10).

5. The dioctyl terephthalate esterification kettle according to claim 1, wherein: a heater (8) and a thermometer (9) are fixedly arranged on one side of the kettle body (1), and the heater (8) is positioned at the bottom of the thermometer (9).

6. The dioctyl terephthalate esterification kettle according to claim 1, wherein: the bottom end of the transparent kettle body (7) is fixedly connected with three supporting seats (6).