A distillation apparatus for the preparation of disperse dye intermediates

Abstract

The utility model relates to the technical field of disperse dye intermediate preparation discloses a distillation device for disperse dye intermediate preparation, including base, the top fixed mounting of base has the lifter, the outer surface fixed mounting of lifter has the retort, the outer surface of the agitating mechanism including the retort cover is connected with the inner surface of retort, the top fixed mounting of retort cover has the motor, the output end of motor is fixedly installed with the rotating shaft through the speed reducer, the bottom end of rotating shaft penetrates retort cover and extends to the inside of retort cover. The distillation device for disperse dye intermediate preparation, the motor drives the hollow tube to rotate through the rotating shaft, the hollow tube drives the stirring rod, the first jet pipe and the second jet pipe to rotate, the raw materials in the retort are stirred, then the external high temperature and high pressure steam is injected into the communication box through the communicating pipe first, and is injected into the first jet pipe and the second jet pipe connected with the hollow tube through the hole of the hollow tube.

Description

Technical Field

[0001] This utility model relates to the technical field of disperse dye intermediate preparation, and in particular to a standby distillation apparatus for disperse dye intermediate preparation. Background Technology

[0002] Disperse dye intermediates, also known as intermediates, refer to various aromatic hydrocarbon derivatives used in the production of dyes and organic pigments. They are produced from aromatic hydrocarbons such as benzene, toluene, naphthalene, and anthracene from coal chemical and petrochemical industries through a series of organic synthesis unit processes. There are many types of dye intermediates, with hundreds of important ones. However, to date, existing dye products still do not meet the environmental protection requirements of the market. Currently, most dyes or dye intermediates contain seriously excessive levels of chlorobenzene, chlorotoluene, and aniline substances, which affect the quality of textiles.

[0003] Existing equipment uses steam distillation to process the intermediate mixture in the distillation vessel. Free benzene in the mixture is distilled out along with the steam, and then chlorobenzene, chlorotoluene, and aniline compounds are separated by allowing them to stand and separate into layers. However, in traditional steam distillation methods, only steam is introduced into the distillation vessel. The steam cannot diffuse sufficiently in the mixture, and the mixture has poor fluidity, preventing the steam from fully contacting all parts of the mixture, resulting in low distillation efficiency. Utility Model Content

[0004] In view of the problem of uneven contact between water vapor and mixed liquid in the existing distillation vessel, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a standby distillation device for disperse dye intermediates, which aims to ensure that water vapor can be evenly and fully contacted with the mixture in the distillation vessel, while also preventing the mixture from being injected into the jetting equipment through the jetting hole.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a standby distillation device for disperse dye intermediates, including a base, a lifting device fixedly installed on the top of the base, a distillation kettle fixedly installed on the outer surface of the lifting device, and a stirring mechanism fixedly installed at the bottom of the lifting device; The stirring mechanism includes a lid, the outer surface of which is engaged with the inner surface of the distillation vessel. A motor is fixedly installed on the top of the lid, and a rotating shaft is fixedly installed on the output end of the motor via a reducer. The bottom end of the rotating shaft passes through the lid and extends into the interior of the lid.

[0007] As a preferred embodiment of the standby distillation apparatus for the disperse dye intermediate system of this utility model, the stirring mechanism further includes a hollow tube, the top of which is fixedly connected to the bottom of the rotating shaft, the bottom of which penetrates through the kettle lid and extends to the outside of the kettle lid, and a stirring rod is fixedly installed on the outer surface of the hollow tube.

[0008] As a preferred embodiment of the standby distillation apparatus for the disperse dye intermediate system of this utility model, the stirring mechanism further includes an air jet assembly, which includes a first air jet pipe. The outer surface of the first air jet pipe is fixedly connected to the inner surface of the stirring rod, and the outer surface of the first air jet pipe is connected to the inner surface of the hollow tube.

[0009] As a preferred embodiment of the standby distillation apparatus for the disperse dye intermediate system of this utility model, the jet assembly further includes a second jet pipe, the outer surface of which is connected to the inner surface of the hollow tube.

[0010] As a preferred embodiment of the standby distillation apparatus for the disperse dye intermediate system of this utility model, the jet assembly further includes a jet box, a rotating rod rotatably mounted on the inner surface of the jet box, a torsion spring sleeved on the outer surface of the rotating rod, a limit block fixedly mounted on the inner surface of the jet box, and a closing plate fixedly mounted on the outer surface of the rotating rod.

[0011] As a preferred embodiment of the standby distillation apparatus for the disperse dye intermediate system of this utility model, the jet assembly further includes a connecting box, the inner surface of which is rotatably connected to the outer surface of the hollow tube, and a connecting pipe connected to the outer surface of the connecting box, the rear end of which penetrates the kettle lid and extends to the outside of the kettle lid.

[0012] As a preferred embodiment of the standby distillation apparatus for the disperse dye intermediate system of this utility model, wherein: the top of the jet box is connected to the outer surface of the first jet pipe and the second jet pipe, one end of the torsion spring is fixedly connected to the inner wall of the jet box, and the other end of the torsion spring is fixedly connected to the outer surface of the rotating rod.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model improves the design by increasing the contact between the dye raw material in the distillation kettle and water vapor. Through the combined use of the motor and rotating shaft with the hollow tube and stirring rod, the combined use of the stirring rod and the first jet pipe with the second jet pipe and the jet box, and the combined use of the hollow tube and the connecting box with the connecting pipe, water vapor can be sprayed out from the bottom of the distillation kettle and the bottom of the stirring rod. While stirring, water vapor is sprayed out, thereby achieving the effect of water vapor fully contacting the dye raw material.

[0014] 2. This utility model improves upon the design by preventing the dye raw material from flowing back into the jetting equipment when the jetting stops. This is achieved by using the No. 1 and No. 2 jetting pipes in conjunction with the jetting box and the limiting block, and by using the jetting box and the rotating rod in conjunction with the torsion spring and the closing plate. This results in a one-way valve at the jetting position of the No. 1 and No. 2 jetting pipes, allowing only water vapor to be ejected from the pipes and preventing the dye raw material from flowing back into the pipes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the standby distillation apparatus for the disperse dye intermediate system of this utility model. Figure 2 This is a three-dimensional structural diagram of the stirring mechanism of the standby distillation apparatus for disperse dye intermediates according to this utility model; Figure 3 This is a partial cross-sectional perspective view of the jet assembly of the standby distillation apparatus for disperse dye intermediates according to this utility model. Figure 4 This is a cross-sectional perspective view of the jet box structure of the standby distillation apparatus for the disperse dye intermediate system of this utility model. Figure 5 This is a cross-sectional three-dimensional structural diagram of the connecting box of the standby distillation apparatus for the disperse dye intermediate system of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Base; 2. Lifter; 3. Distillation vessel; 4. Stirring mechanism; 41. Vessel lid; 42. Motor; 43. Rotating shaft; 44. Hollow tube; 45. Stirring rod; 46. Jet assembly; 461. No. 1 jet pipe; 462. No. 2 jet pipe; 463. Jet box; 464. Rotating rod; 465. Torsion spring; 466. Limiting block; 467. Closing plate; 468. Connecting box; 469. Connecting pipe. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0018] Reference Figures 1-2 This is the first embodiment of the present invention, which provides a standby distillation device for disperse dye intermediates. The standby distillation device for disperse dye intermediates includes a base 1, a lifting device 2 fixedly installed on the top of the base 1, a distillation vessel 3 fixedly installed on the outer surface of the lifting device 2, and a stirring mechanism 4 fixedly installed on the bottom of the lifting device 2. The stirring mechanism 4 includes a lid 41, the outer surface of which is engaged with the inner surface of the distillation vessel 3. A motor 42 is fixedly installed on the top of the lid 41, and a rotating shaft 43 is fixedly installed on the output end of the motor 42 through a reducer. The bottom end of the rotating shaft 43 passes through the lid 41 and extends into the interior of the lid 41.

[0019] The stirring mechanism 4 also includes a hollow tube 44, the top of which is fixedly connected to the bottom of the rotating shaft 43. The bottom of the hollow tube 44 passes through the lid 41 and extends to the outside of the lid 41. A stirring rod 45 is fixedly installed on the outer surface of the hollow tube 44.

[0020] The stirring mechanism 4 also includes an air jet assembly 46, which includes a first air jet pipe 461. The outer surface of the first air jet pipe 461 is fixedly connected to the inner surface of the stirring rod 45, and the outer surface of the first air jet pipe 461 is connected to the inner surface of the hollow tube 44.

[0021] The jet assembly 46 also includes a second jet pipe 462, the outer surface of which is connected to the inner surface of the hollow tube 44.

[0022] The hollow tube 44 has a hole, allowing gas from the communicating box 468 to be injected into the hollow tube 44 through the hole. During operation, motor 42 drives hollow tube 44 to rotate via rotating shaft 43. Hollow tube 44 drives stirring rod 45, No. 1 jet pipe 461 and No. 2 jet pipe 462 to rotate, stirring the raw materials in distillation kettle 3. Then, external high-temperature and high-pressure steam is first injected into connecting box 468 through connecting pipe 469, and then injected into No. 1 jet pipe 461 and No. 2 jet pipe 462 connected to hollow tube 44 through the holes in hollow tube 44. The high-pressure steam squeezes and drives closing plate 467 to rotate, opening it and allowing high-pressure steam to be ejected from jet box 463. Steam is ejected from below No. 1 jet pipe 461 and No. 2 jet pipe 462, mixing and stirring the dye raw materials with steam. Example 2

[0023] Reference Figures 3-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the jet assembly 46 further includes a jet box 463. A rotating rod 464 is rotatably mounted on the inner surface of the jet box 463. A torsion spring 465 is sleeved on the outer surface of the rotating rod 464. A limit block 466 is fixedly mounted on the inner surface of the jet box 463. A closing plate 467 is fixedly mounted on the outer surface of the rotating rod 464.

[0024] The jet assembly 46 also includes a connecting box 468, the inner surface of which is rotatably connected to the outer surface of the hollow tube 44, and a connecting pipe 469 connected to the outer surface of the connecting box 468, the rear end of which passes through the vessel cover 41 and extends to the outside of the vessel cover 41.

[0025] The top of the jet box 463 is connected to the outer surface of the first jet pipe 461 and the second jet pipe 462. One end of the torsion spring 465 is fixedly connected to the inner wall of the jet box 463, and the other end of the torsion spring 465 is fixedly connected to the outer surface of the rotating rod 464.

[0026] During use, when steam injection is not required, the torsion spring 465 drives the closing plate 467 to rotate via the rotating rod 464, and then, with the cooperation of the limiting block 466, the jet box 463 is resealed, preventing the dye raw material from flowing from the jet box 463 into the first jet pipe 461 and the second jet pipe 462.

[0027] The remaining structure is the same as that in Example 1.

[0028] Based on embodiments 1-2, the working principle of this utility model is as follows: The user first places the dye raw material into the distillation kettle 3. Then, the lifting device 2 covers the distillation kettle 3 with the kettle lid 41. The motor 42 drives the hollow tube 44 to rotate via the rotating shaft 43. The hollow tube 44 drives the stirring rod 45, the first jet pipe 461, and the second jet pipe 462 to rotate, stirring the raw material in the distillation kettle 3. Then, external high-temperature, high-pressure steam is first injected into the connecting box 468 through the connecting pipe 469, and then injected into the first jet pipe 461 connected to the hollow tube 44 through the holes in the hollow tube 44. In the No. 2 jet pipe 462, the high-pressure steam squeezes and drives the closing plate 467 to rotate, opening it and allowing high-pressure steam to be ejected from the jet box 463. The steam is ejected from below the No. 1 jet pipe 461 and the No. 2 jet pipe 462, mixing and stirring the dye raw materials. When steam injection is not needed, the torsion spring 465 drives the closing plate 467 to rotate through the rotating rod 464, and then, through the cooperation of the limiting block 466, the jet box 463 is sealed again, preventing the dye raw materials from flowing from the jet box 463 into the No. 1 jet pipe 461 and the No. 2 jet pipe 462.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A standby distillation apparatus for a disperse dye intermediate, comprising a base (1), characterized in that: A lifting device (2) is fixedly installed on the top of the base (1), a distillation vessel (3) is fixedly installed on the outer surface of the lifting device (2), and a stirring mechanism (4) is fixedly installed on the bottom of the lifting device (2). The stirring mechanism (4) includes a lid (41), the outer surface of which is engaged with the inner surface of the distillation vessel (3). A motor (42) is fixedly installed on the top of the lid (41), and a rotating shaft (43) is fixedly installed on the output end of the motor (42) through a reducer. The bottom end of the rotating shaft (43) passes through the lid (41) and extends into the interior of the lid (41).

2. The standby distillation apparatus for disperse dye intermediates according to claim 1, characterized in that: The stirring mechanism (4) also includes a hollow tube (44), the top of which is fixedly connected to the bottom of the rotating shaft (43), the bottom of which penetrates the lid (41) and extends to the outside of the lid (41), and a stirring rod (45) is fixedly installed on the outer surface of the hollow tube (44).

3. The standby distillation apparatus for disperse dye intermediates according to claim 1, characterized in that: The stirring mechanism (4) also includes an air jet assembly (46), which includes a first air jet pipe (461). The outer surface of the first air jet pipe (461) is fixedly connected to the inner surface of the stirring rod (45), and the outer surface of the first air jet pipe (461) is connected to the inner surface of the hollow tube (44).

4. The standby distillation apparatus for disperse dye intermediates according to claim 3, characterized in that: The jet assembly (46) also includes a second jet pipe (462), the outer surface of which is connected to the inner surface of the hollow tube (44).

5. The standby distillation apparatus for disperse dye intermediates according to claim 3, characterized in that: The jet assembly (46) further includes a jet box (463), on the inner surface of the jet box (463) a rotating rod (464) is rotatably mounted, a torsion spring (465) is sleeved on the outer surface of the rotating rod (464), a limit block (466) is fixedly mounted on the inner surface of the jet box (463), and a closing plate (467) is fixedly mounted on the outer surface of the rotating rod (464).

6. The standby distillation apparatus for disperse dye intermediates according to claim 3, characterized in that: The jet assembly (46) also includes a connecting box (468), the inner surface of which is rotatably connected to the outer surface of the hollow tube (44), and the outer surface of the connecting box (468) is connected to a connecting pipe (469), the rear end of which passes through the lid (41) and extends to the outside of the lid (41).

7. The standby distillation apparatus for disperse dye intermediates according to claim 5, characterized in that: The top of the jet box (463) is connected to the outer surface of the first jet pipe (461) and the second jet pipe (462). One end of the torsion spring (465) is fixedly connected to the inner wall of the jet box (463), and the other end of the torsion spring (465) is fixedly connected to the outer surface of the rotating rod (464).

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