CN213388439U

CN213388439U - Device is used in methylnaphthalene production

Info

Publication number: CN213388439U
Application number: CN202022423711.3U
Authority: CN
Inventors: 常兆霞
Original assignee: Jining Changsheng New Material Co ltd
Current assignee: Jining Changsheng New Material Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-08
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a device for producing methylnaphthalene, which belongs to the technical field of producing methylnaphthalene, and comprises a bracket, wherein the bracket is fixedly connected with two symmetrical fixed plates, one end of each fixed plate, which is far away from the bracket, is respectively and fixedly connected with a rectifying box and a crystallizing box, the inner wall of the rectifying box is fixedly connected with a heating plate, the inner wall of the heating plate is fixedly connected with a rectifying bottle, the side wall of the rectifying bottle is fixedly connected with a first inlet and a first discharge outlet which are distributed in an upper and lower array, the upper end of the rectifying bottle is fixedly connected with an arc-shaped connecting pipe, one end of the arc-shaped connecting pipe, which is far away from the rectifying bottle, is fixedly connected with an annular inner pipe, the outer wall of the annular inner pipe is sleeved with an annular outer pipe, one end of the annular outer pipe, which is close to the arc-shaped connecting pipe, is, meanwhile, multiple steps of methylnaphthalene production are reduced, and the quality of the finished methylnaphthalene is improved.

Description

Device is used in methylnaphthalene production

Technical Field

The utility model relates to a technical field is used in the methylnaphthalene production, and more specifically says, relates to a device is used in methylnaphthalene production.

Background

Methylnaphthalene, also known as 1-methylnaphthalene, is an organic synthetic feedstock for coking by-products. A yellowish or bluish-violet oily liquid, with a naphthalene smell. It is insoluble in water, easily soluble in ether and alcohol, and inflammable. Can be evaporated with water vapor, and the melting point of the methylnaphthalene is-30.6, the boiling point is 244.6, and the refractive index is 1.6175. Is insoluble in water and soluble in organic solvents such as ethanol and diethyl ether, and belongs to flammable chemicals. Less toxic than naphthalene.

The production of the methylnaphthalene is relatively complex, multiple rectification and crystallization are needed, then water, gas and other impurities in the methylnaphthalene are removed, the methylnaphthalene not only wastes a large amount of labor cost and time cost through the multiple rectification and crystallization, but also has complicated steps, and the finished methylnaphthalene product contains more impurities due to easy error, so that the quality of the finished methylnaphthalene product is reduced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a device is used in methylnaphthalene production, it carries out rectification and crystallization in step, has practiced thrift staff's plenty of time and cost of labor, reduces the multiple step of methylnaphthalene production simultaneously, has improved the off-the-shelf quality of methylnaphthalene.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a device is used in methylnaphthalene production, includes the support, two fixed plates of support fixedly connected with symmetry, two the one end difference fixedly connected with rectification box and crystallization case of support are kept away from to the fixed plate, the inner wall fixedly connected with hot plate of rectification box, the inner wall fixedly connected with rectification bottle of hot plate, array distribution's first entry and first discharge opening about the lateral wall fixedly connected with of rectification bottle, the upper end fixedly connected with arc connecting pipe of rectification bottle, the one end fixedly connected with annular inner tube of rectification bottle is kept away from to the arc connecting pipe, the outer wall of annular inner tube has cup jointed annular outer tube, the annular outer tube is close to the one end fixedly connected with second entry of arc connecting pipe, the inner wall fixedly connected with crystallization bottle of crystallization box, the one end fixedly connected with crystallization bottle of arc connecting pipe is kept away from to the annular inner tube, array distribution has first screen cloth about the inner wall of crystallization bottle, The outer wall fixedly connected with second discharge port of crystallization bottle, the lateral wall fixedly connected with third discharge port of crystallization case.

Furthermore, the lateral wall of crystallization case and crystallization bottle all has clean door through the hinge handing-over, is convenient for take out the crystal body of sieving out on first screen cloth, second screen cloth and the third screen cloth.

Furthermore, the one end fixedly connected with connecting tube that the annular outer tube is close to the crystallization case, the one end fixedly connected crystallization case that the annular outer tube was kept away from to the connecting tube, the inner chamber of the annular outer tube intercommunication crystallization case of being convenient for to be convenient for transmit the cryogenic fluid to the inner chamber of crystallization case.

Furthermore, the upper end of support is provided with the fixed slot with arc connecting pipe looks adaptation, is convenient for fix the arc connecting pipe, prevents that the arc connecting pipe from droing.

Further, the sum of the heights of the first screen and the third screen is 20cm smaller than the height of the cleaning door, so that crystals on the first screen, the second screen and the third screen can be taken out conveniently.

Furthermore, the screen mesh apertures of the first screen mesh, the second screen mesh and the third screen mesh are gradually reduced, so that crystals with different sizes can be conveniently screened out.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the utility model discloses going on rectification and crystallization in step, having practiced thrift staff's plenty of time and cost of labor, reduce the multiple step of methylnaphthalene production simultaneously, improved the off-the-shelf quality of methylnaphthalene.

(2) The lateral wall of crystallization case and crystallization bottle all has clean door through the hinge handing-over, is convenient for take out the crystal body of sieving out on first screen cloth, second screen cloth and the third screen cloth.

(3) The one end fixedly connected with connecting tube that the annular outer tube is close to the crystallization case, and the one end fixedly connected crystallization case of annular outer tube is kept away from to the connecting tube, the inner chamber of the annular outer tube intercommunication crystallization case of being convenient for to be convenient for transmit the cryogenic fluid to the inner chamber of crystallization case.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of the portion B in fig. 2.

The reference numbers in the figures illustrate:

1. a support; 2. a fixing plate; 3. a rectification box; 301. heating plates; 302. a rectification bottle; 303. a first inlet; 304. a first discharge port; 4. a crystallization box; 401. a crystallization bottle; 402. a first screen; 403. a second screen; 404. a third screen; 405. a second discharge port; 406. a third discharge port; 407. cleaning the door; 5. an arc-shaped connecting pipe; 6. an annular inner tube; 7. an annular outer tube; 701. a second inlet; 702. and connecting the pipelines.

Detailed Description

The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, a device for producing methylnaphthalene comprises a support 1, the support 1 is arranged in an inverted T shape, the support 1 is fixedly connected with two symmetrical fixing plates 2, the two fixing plates 2 are symmetrically distributed about the geometric center of the support 1, one ends of the two fixing plates 2 far away from the support 1 are respectively fixedly connected with a rectifying box 3 and a crystallizing box 4, the inner wall of the rectifying box 3 is fixedly connected with a heating plate 301, the heating plate 301 is connected with an external power supply, the inner wall of the heating plate 301 is fixedly connected with a rectifying bottle 302, the side wall of the rectifying bottle 302 is fixedly connected with a first inlet 303 and a first discharge port 304 which are distributed in an up-and-down array, the first inlet 303 is positioned at the upper side of the first discharge port 304, the first discharge port 304 is convenient for discharging distilled mixture, the upper end of the rectifying bottle 302 is fixedly connected with an arc-shaped connecting pipe 5, wherein the upper, the arc connecting pipe 5 is convenient to fix, the arc connecting pipe 5 is prevented from falling off, one end of the arc connecting pipe 5, which is far away from the rectifying bottle 302, is fixedly connected with an annular inner pipe 6, the outer wall of the annular inner pipe 6 is sleeved with an annular outer pipe 7, the upper end of the crystallization box 4 is fixedly connected with the annular outer pipe 7 through a first fixing column, the annular inner pipe 6 and the annular outer pipe 7 are arranged to be in an annular structure, one end of the annular outer pipe 7, which is close to the arc connecting pipe 5, is fixedly connected with a second inlet 701, refrigerating fluid is injected into the second inlet 701, so that the water in the steam in the annular inner pipe 6 is conveniently crystallized, and further, the methylnaphthalene is conveniently rectified, one end of the annular outer pipe 7, which is close to the crystallization box 4, one end of the connecting pipe 702, which is far away from the annular outer pipe 7, is fixedly connected with the crystallization box 4, the inner wall of the crystallization box 4 is fixedly connected with a crystallization bottle 401 through a second fixed column, the side walls of the crystallization box 4 and the crystallization bottle 401 are respectively connected with a cleaning door 407 through hinges, so that crystals screened on a first screen 402, a second screen 403 and a third screen 404 can be conveniently taken out, one end of the annular inner tube 6, which is far away from the arc-shaped connecting tube 5, is fixedly connected with the crystallization bottle 401, the first screen 402, the second screen 403 and the third screen 404 are arranged on the inner wall of the crystallization bottle 401 in an up-and-down array manner, the sum of the heights of the first screen 402 and the third screen 404 is 20cm smaller than the height of the cleaning door 407, so that crystals on the first screen 402, the second screen 403 and the third screen 404 can be conveniently taken out, the screen apertures of the first screen 402, the second screen 403 and the third screen 404 are gradually reduced, so that crystals of different sizes can be conveniently screened out, the outer wall of the crystallization bottle 401 is fixedly connected with a second discharge port 405, and the, the sidewall of the crystallization box 4 is fixedly connected with a third discharge port 406 for discharging the cooling liquid.

The device connects the heating plate 301 with an external power supply and is started, then the methylnaphthalene mixture is poured into the rectifying bottle 302 from the first inlet 303, then the rectifying bottle 302 is heated by the first inlet 303, and the methylnaphthalene mixture in the rectifying bottle 302 is evaporated, steam enters the annular inner tube 6 through the arc-shaped connecting tube 5, and simultaneously refrigerating fluid is introduced into the annular outer tube 7 through the second inlet 701, the steam is condensed and crystallized under the action of the refrigerating fluid of the annular outer tube 7, meanwhile, the refrigerating fluid in the annular outer tube 7 is introduced into the inner cavity of the crystallization box 4 through the connecting tube 702, then the crystallized mixture enters the crystallization bottle 401, the crystallization is respectively screened through the first screen 402, the second screen 403 and the third screen 404, the methylnaphthalene falls into the bottom of the crystallization bottle 401 and is taken out through the third discharge outlet 406, the utility model saves a large amount of time and labor cost, and reduces the step of carrying the distillation arrangement to the crystallization device after rectification, meanwhile, multiple steps of methylnaphthalene production are reduced, and the quality of the finished methylnaphthalene is improved.

The above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the utility model.

Claims

1. The utility model provides a device is used in methylnaphthalene production, includes support (1), its characterized in that: the support (1) is fixedly connected with two symmetrical fixing plates (2), one end of each fixing plate (2) far away from the support (1) is fixedly connected with a rectifying box (3) and a crystallizing box (4) respectively, the inner wall of each rectifying box (3) is fixedly connected with a heating plate (301), the inner wall of each heating plate (301) is fixedly connected with a rectifying bottle (302), the side wall of each rectifying bottle (302) is fixedly connected with a first inlet (303) and a first discharge port (304) which are distributed in an upper-lower array manner, the upper end of each rectifying bottle (302) is fixedly connected with an arc-shaped connecting pipe (5), one end of each arc-shaped connecting pipe (5) far away from the rectifying bottle (302) is fixedly connected with an annular inner pipe (6), the outer wall of the annular inner pipe (6) is sleeved with an annular outer pipe (7), the annular outer pipe (7) is close to one end of the arc-shaped connecting pipe (, inner wall fixedly connected with crystallization bottle (401) of crystallization case (4), one end fixed connection crystallization bottle (401) of arc connecting pipe (5) are kept away from in annular inner tube (6), first screen cloth (402), second screen cloth (403) and third screen cloth (404) have been arranged in array from top to bottom on the inner wall of crystallization bottle (401), the outer wall fixedly connected with second discharge port (405) of crystallization bottle (401), the lateral wall fixedly connected with third discharge port (406) of crystallization case (4).

2. The apparatus for methylnaphthalene production according to claim 1, wherein: the side walls of the crystallization box (4) and the crystallization bottle (401) are connected with a cleaning door (407) through hinges.

3. The apparatus for methylnaphthalene production according to claim 1, wherein: the crystallization device is characterized in that one end of the annular outer pipe (7) close to the crystallization box (4) is fixedly connected with a connecting pipeline (702), and one end of the annular outer pipe (7) far away from the connecting pipeline (702) is fixedly connected with the crystallization box (4).

4. The apparatus for methylnaphthalene production according to claim 1, wherein: the upper end of the bracket (1) is provided with a fixing groove matched with the arc-shaped connecting pipe (5).

5. The apparatus for methylnaphthalene production according to claim 2, wherein: the sum of the heights of the first screen (402) and the third screen (404) is 20cm less than the height of the cleaning gate (407).

6. The apparatus for methylnaphthalene production according to claim 1, wherein: the screen hole diameters of the first screen (402), the second screen (403) and the third screen (404) are gradually reduced.