CN214158588U

CN214158588U - Sublimation crystallization device is used in p-benzoquinone production

Info

Publication number: CN214158588U
Application number: CN202121556797.5U
Authority: CN
Inventors: 杨启邦; 王亮; 朱志强; 邱彦国; 单鲁凯
Original assignee: Weifang Taixing Biological Chemical Co ltd
Current assignee: Weifang Taixing Biological Chemical Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-09-10
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a sublimation crystallization device for p-benzoquinone production, which relates to the technical field of chemical equipment and comprises a crystallization kettle and a sampling tube arranged in the crystallization kettle and used for sampling; the sampling tube comprises a long tube and a short tube rotatably arranged at the bottom of the long tube, and the top of the short tube is rotatably connected with the long tube through a connecting sleeve. The utility model discloses in, through removing the material subassembly, change the sampling tube into the sectional type, utilize the hand to change the nozzle stub, make the scraper strike off attached to the material at the long tube inner wall, replaced the washing liquid and washed the pipe wall, improved the cleaning efficiency.

Description

Sublimation crystallization device is used in p-benzoquinone production

Technical Field

The utility model relates to a chemical industry equipment technical field especially relates to a sublimation crystallization device is used in p-benzoquinone production.

Background

Benzoquinone (benzoquinone) is one of quinones, has a molecular formula of C6H4O2, comprises two kinds of O-benzoquinone and p-benzoquinone, is important, and can be used as a dye, a medical intermediate, a rubber anti-aging agent, a polymerization inhibitor, an antioxidant, a developer and the like.

When p-benzoquinone is produced, a crystallization device special for p-benzoquinone is mostly adopted for preparation, and the specific process comprises the following steps: p-benzoquinone is stirred to react, then materials in the crystallization device are sampled and analyzed through a sampling tube, and whether no o-methyl-p-benzoquinone in the system reaches a reaction end point or not is observed. The sampling tube used in the method is mostly integrated, so that the phenomenon that crystals are attached to the inner wall of the sampling tube easily occurs during sampling, and the existing cleaning method using a cleaning solution cannot clean the sampling tube.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a sublimation crystallization device for p-benzoquinone production.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sublimation crystallization device for p-benzoquinone production comprises a crystallization kettle and a sampling tube arranged in the crystallization kettle and used for sampling;

the sampling tube comprises a long tube and a short tube which is rotatably arranged at the bottom of the long tube, and the top of the short tube is rotatably connected with the long tube through a connecting sleeve;

a material removing component used for scraping the attached crystals on the inner wall of the long pipe is arranged in the short pipe in a sliding way;

remove the material subassembly including slide setting up in the nozzle stub slide and set up in the scraper of slide top one side, seted up in the nozzle stub with slide complex spout, spout one end extends to the top of nozzle stub inner wall, the spout other end ends in the well upper segment of nozzle stub inner wall.

Furthermore, the top of the short pipe is in threaded connection with a pipe cover used for tightly abutting against the sliding seat, an internal thread is arranged on the outer wall of the short pipe, an external thread screwed with the internal thread is arranged on the inner wall of the pipe cover, and an annular block used for tightly abutting against the sliding seat is arranged in the pipe cover.

Further, the pipe cover is fixedly connected with the connecting sleeve through a fixing bolt, and a sealing bearing is rotationally arranged in the inner wall of the connecting sleeve.

Further, all offer the through-hole that is used for the air current to derive in tube cap and the slide.

Furthermore, a positioning seat for preventing the scraper from rotating unstably is arranged in the top of the long pipe in a rotating mode, and the positioning seat is connected with the top of the scraper through a fixing screw.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses in, through removing the material subassembly, change the sampling tube into the sectional type, utilize the hand to change the nozzle stub, make the scraper strike off attached to the material at the long tube inner wall, replaced the washing liquid and washed the pipe wall, improved the cleaning efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of a sublimation crystallization device for p-benzoquinone production according to the present invention;

FIG. 2 is a schematic structural view of a sampling tube in a sublimation crystallization device for p-benzoquinone production according to the present invention;

FIG. 3 is a schematic view of the internal structure of a sampling tube in a sublimation crystallization device for p-benzoquinone production according to the present invention;

fig. 4 is the utility model provides a structural schematic of remove material subassembly in sublimation crystallization device for p-benzoquinone production.

In the figure: 1. a crystallization kettle; 2. a sampling tube; 21. a short pipe; 22. a long tube; 23. connecting sleeves; 24. a tube cover; 25. a material removing component; 26. positioning seats; 231. fixing the bolt; 232. sealing the bearing; 251. a slide base; 252. and (4) scraping the blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a sublimation crystallization device for p-benzoquinone production comprises a crystallization kettle 1 and a sampling tube 2 arranged in the crystallization kettle 1 for sampling;

the sampling tube 2 comprises a long tube 22 and a short tube 21 rotatably arranged at the bottom of the long tube 22, and the top of the short tube 21 is rotatably connected with the long tube 22 through a connecting sleeve 23;

the short pipe 21 is internally provided with a material removing component 25 for scraping crystals attached to the inner wall of the long pipe 22 in a sliding manner, and the short pipe 21 is rotated by holding by hand to drive the material removing component 25 to rotate in the long pipe 22 so as to scrape the crystals attached to the inner wall of the long pipe 22;

the material removing assembly 25 comprises a sliding seat 251 arranged in the short pipe 21 in a sliding manner and a scraper 252 arranged on one side of the top of the sliding seat 251, a sliding groove matched with the sliding seat 251 is formed in the short pipe 21, one end of the sliding groove extends to the top of the inner wall of the short pipe 21, the other end of the sliding groove is stopped at the middle upper section of the inner wall of the short pipe 21, and when the short pipe 21 is rotated, the scraper 252 rotates along the inner wall of the long pipe 22 to scrape off attached materials.

Further, the top of the short pipe 21 is connected with a pipe cover 24 for tightly abutting against the sliding seat 251 through a thread, an internal thread is formed on the outer wall of the short pipe 21, an external thread screwed with the internal thread is formed on the inner wall of the pipe cover 24, and an annular block for tightly abutting against the sliding seat 251 is arranged in the pipe cover 24.

Further, the pipe cover 24 is fixedly connected with the connecting sleeve 23 through a fixing bolt 231, and a sealing bearing 232 is rotatably arranged on the inner wall of the connecting sleeve 23.

Further, through holes for guiding out air flow are formed in the pipe cover 24 and the sliding base 251.

Further, a positioning seat 26 for preventing the scraper 252 from rotating unstably is rotatably arranged in the top of the long tube 22, and the positioning seat 26 is connected with the top of the scraper 252 through a fixing screw.

The working principle is as follows: firstly, installing the sampling tube 2, sliding the material removing component 25 into the short tube 21, then screwing the tube cover 24 on the short tube 21, abutting an annular block in the tube cover 24 against the sliding seat 251 to ensure that the material removing component 25 cannot shake, then sleeving the connecting sleeve 23 on the tube cover 24, and fixing by using a fixing bolt 231 to finish the installation of the sampling tube 2; after sampling is finished, the sampling tube 2 is taken out, the short tube 21 is rotated, the scraper 252 is driven to rotate in the long tube 22, and the scraper 252 scrapes and removes the crystal material attached to the inner wall of the long tube 22.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The sublimation crystallization device for producing p-benzoquinone is characterized by comprising a crystallization kettle (1) and a sampling tube (2) arranged in the crystallization kettle (1) and used for sampling;

the sampling tube (2) comprises a long tube (22) and a short tube (21) rotatably arranged at the bottom of the long tube (22), and the top of the short tube (21) is rotatably connected with the long tube (22) through a connecting sleeve (23);

a material removing component (25) used for scraping crystals attached to the inner wall of the long pipe (22) is arranged in the short pipe (21) in a sliding mode;

the material removing assembly (25) comprises a sliding seat (251) arranged in the short pipe (21) in a sliding mode and a scraper (252) arranged on one side of the top of the sliding seat (251), a sliding groove matched with the sliding seat (251) is formed in the short pipe (21), one end of the sliding groove extends to the top of the inner wall of the short pipe (21), and the other end of the sliding groove is stopped at the middle upper section of the inner wall of the short pipe (21).

2. The sublimation crystallization device for p-benzoquinone production according to claim 1, wherein the top of the short pipe (21) is in threaded connection with a pipe cover (24) for abutting against the sliding seat (251), the outer wall of the short pipe (21) is provided with an internal thread, the inner wall of the pipe cover (24) is provided with an external thread screwed with the internal thread, and the pipe cover (24) is internally provided with an annular block for abutting against the sliding seat (251).

3. The sublimation crystallization device for p-benzoquinone production according to claim 2, wherein the pipe cover (24) is fixedly connected with the connecting sleeve (23) through a fixing bolt (231), and a sealing bearing (232) is rotatably arranged in the inner wall of the connecting sleeve (23).

4. The sublimation crystallization device for p-benzoquinone production according to claim 2, wherein through holes for guiding out air flow are formed in the pipe cover (24) and the sliding seat (251).

5. The sublimation crystallization device for p-benzoquinone production according to claim 1, wherein a positioning seat (26) for preventing the scraper (252) from rotating unstably is rotatably arranged in the top of the long tube (22), and the positioning seat (26) is connected with the top of the scraper (252) through a fixing screw.