CN218281779U

CN218281779U - Methyl anthranilate production device

Info

Publication number: CN218281779U
Application number: CN202222466859.4U
Authority: CN
Inventors: 蔡绅; 符章; 李鹏
Original assignee: Weifang Run'an Chemical Technology Co ltd
Current assignee: Weifang Run'an Chemical Technology Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-13
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a methyl anthranilate production device, which belongs to the technical field of methyl anthranilate production equipment and comprises a degradation kettle, wherein an annular groove is formed in the side wall of the degradation kettle, the bottom wall of the annular groove is made of a heat conduction material, a semiconductor refrigeration piece is arranged in the annular groove, and the cold end of the semiconductor refrigeration piece is attached to the bottom wall of the annular groove; a heat dissipation cavity is arranged outside the side wall of the degradation kettle, the heat dissipation cavity accommodates the hot end of the semiconductor refrigeration sheet, and a heat exchange medium is filled in the heat dissipation cavity; a telescopic component is arranged on the top wall in the degradation kettle, and an inverted conical spoiler is arranged at the lower end of the telescopic component; the utility model utilizes the semiconductor refrigeration piece embedded in the annular groove to accurately control the temperature in the degradation kettle; the heat exchange medium in the heat dissipation cavity can ensure that the semiconductor refrigeration piece continuously works; the expansion component can be used for driving the inverted cone-shaped spoiler to move, so that the reaction speed is increased.

Description

Methyl anthranilate production device

Technical Field

The utility model relates to a methyl anthranilate production facility technical field, concretely relates to methyl anthranilate apparatus for producing.

Background

In nature, methyl anthranilate is present in tall oil, orange flower oil, ylang, jasmine oil, tuberose oil, etc.; the industrial production is generally obtained by esterifying anthranilic acid and methanol, specifically, heating the methanol solution of anthranilic acid to 65 ℃, dropwise adding sulfuric acid, and reacting at 75 ℃ to generate sulfate of methyl anthranilate; then neutralizing by using a sodium hydroxide solution to separate out methyl anthranilate; extracting with toluene, washing the toluene extract, evaporating toluene, rectifying the crude methyl anthranilate under reduced pressure in the presence of sodium carbonate, and cooling the finished product fraction to below 12-15 ℃ to separate out methyl anthranilate; the other preparation method is that the product is obtained by ammoniation, degradation and esterification of phthalic anhydride; methyl anthranilate can also be prepared by esterifying anthranilic acid and methanol under acidic conditions and neutralizing with alkali, or by aminating, degrading and esterifying phthalic anhydride.

Traditional methyl anthranilate apparatus for producing, the structure is comparatively complicated, and the operation is comparatively loaded down with trivial details, and reaction temperature control is not accurate, and production is long consuming time, and the accessory substance is difficult to retrieve, needs a large amount of hot water, and product quality is not high, very big increase methyl anthranilate manufacturing enterprise's manufacturing cost.

SUMMERY OF THE UTILITY MODEL

For the problems existing in the prior art, the utility model provides a methyl anthranilate production device, which utilizes the semiconductor refrigeration piece embedded in the annular groove to accurately control the temperature in the degradation kettle; the heat exchange medium in the heat dissipation cavity can effectively ensure the continuous work of the semiconductor refrigeration sheet; the expansion component can be used for driving the inverted conical spoiler to move, so that the reaction speed can be increased; simple structure, easy and simple to handle, temperature control is accurate, and production weak point consuming time no longer needs a large amount of hot water to product quality has been improved.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a methyl anthranilate production device comprises a degradation kettle, wherein a methanol inlet, a sodium hypochlorite inlet and a methyl ester outlet are formed in the degradation kettle, an annular groove is formed in the side wall of the degradation kettle, the bottom wall of the annular groove is made of a heat conduction material, a semiconductor refrigeration piece is arranged in the annular groove, and the cold end of the semiconductor refrigeration piece is attached to the bottom wall of the annular groove; a heat dissipation cavity is arranged outside the side wall of the degradation kettle, the heat dissipation cavity accommodates the hot end of the semiconductor refrigeration sheet, and a heat exchange medium is filled in the heat dissipation cavity; the top wall in the degradation kettle is provided with a telescopic assembly, and the lower end of the telescopic assembly is provided with an inverted conical spoiler.

As a preferred technical scheme, the device also comprises a dissolving kettle, wherein the dissolving kettle is provided with a liquid caustic soda inlet, an imine inlet and a methanol outlet, and the methanol outlet is communicated with the methanol inlet.

As a preferable technical scheme, the device also comprises a rectifying still, wherein the rectifying still is provided with a methyl ester inlet which is communicated with the methyl ester outlet.

As a preferred technical scheme, the semiconductor refrigeration piece is connected with a controller, and the controller is connected with the telescopic assembly.

As a preferable technical solution, the controller is a PLC, and the telescopic assembly is an electric push rod, an air cylinder or a hydraulic cylinder.

As a preferable technical scheme, the side wall of the degradation kettle and the side wall of the annular groove are both made of heat insulation materials.

As a preferred technical scheme, the annular groove sets up to many, many the annular groove is along vertical direction evenly distributed.

As a preferred technical scheme, the heat dissipation cavity is provided with a heat exchange medium inlet and a heat exchange medium outlet, the heat exchange medium inlet is located at the lower end of the heat dissipation cavity, and the heat exchange medium outlet is located at the upper end of the heat dissipation cavity.

As a preferred technical solution, the heat exchange medium is water or heat exchange oil.

As a preferred technical scheme, a plurality of through holes are formed in the spoiler.

The beneficial effects of the utility model are shown in:

the utility model can accurately control the temperature in the degradation kettle by using the semiconductor refrigeration sheet embedded in the annular groove; the heat exchange medium in the heat dissipation cavity can effectively ensure the continuous work of the semiconductor refrigeration sheet; the expansion component can be used for driving the inverted conical spoiler to move, so that the reaction speed can be increased; simple structure, easy and simple to handle, temperature control is accurate, and production is consuming time weak point, no longer needs a large amount of hot water to product quality has been improved.

Drawings

FIG. 1 is a schematic structural diagram of a degradation kettle in a methyl anthranilate production device of the present invention;

fig. 2 is the overall structure schematic diagram of the methyl anthranilate production device of the present invention.

In the figure: the device comprises a degradation kettle 1, a 11-methanol inlet, a 12-sodium hypochlorite inlet, a 13-methyl ester outlet, a 14-annular groove, a 2-semiconductor refrigerating sheet, a 3-heat dissipation cavity, a 31-heat exchange medium inlet, a 32-heat exchange medium outlet, a 4-spoiler, a 41-telescopic component, a 42-through hole, a 5-dissolving kettle, a 51-liquid caustic soda inlet, a 52-imine inlet, a 53-methanol outlet, a 6-rectifying kettle and a 61-methyl ester inlet.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Please refer to fig. 1 and fig. 2, which are an embodiment of a device for producing methyl anthranilate according to the present invention, comprising a degradation kettle 1, wherein the degradation kettle 1 is provided with a methanol inlet 11, a sodium hypochlorite inlet 12, and a methyl ester outlet 13, anthranilic alcohol enters the degradation kettle 1 through the methanol inlet 11, sodium hypochlorite enters the degradation kettle 1 through the sodium hypochlorite inlet 12, anthranilic alcohol and sodium hypochlorite can generate a degradation reaction in the degradation kettle 1 to generate methyl anthranilate, and methyl anthranilate can be discharged from the methyl ester outlet 13; an annular groove 14 is formed in the side wall of the degradation kettle 1, the bottom wall of the annular groove 14 is made of heat conduction materials, a semiconductor refrigerating sheet 2 is arranged in the annular groove 14, the cold end of the semiconductor refrigerating sheet 2 is attached to the bottom wall of the annular groove 14, and the cold energy generated by the cold end of the semiconductor refrigerating sheet 2 can enable the interior of the degradation kettle 1 to keep the low temperature required by degradation reaction; the heat dissipation cavity 3 is arranged outside the side wall of the degradation kettle 1, the heat dissipation cavity 3 accommodates the hot end of the semiconductor refrigeration piece 2, the heat dissipation cavity 3 is filled with a heat exchange medium, and the heat exchange medium can continuously take away heat generated by the hot end of the semiconductor refrigeration piece 2, so that the semiconductor refrigeration piece 2 can continuously and stably operate; the top wall in the degradation kettle 1 is provided with a telescopic assembly 41, the lower end of the telescopic assembly 41 is provided with an inverted conical spoiler 4, and the telescopic assembly 41 drives the spoiler 4 to move up and down, so that the speed and the effect of degradation reaction can be promoted.

It should be noted that the bottom wall of the annular groove 14 is preferably made of a copper-containing or aluminum-containing alloy, which has a good heat conducting effect.

In this embodiment, please refer to fig. 2, the present invention further includes a dissolving kettle 5, the dissolving kettle 5 has a caustic soda liquid inlet 51, an imine inlet 52 and a methanol outlet 53, the caustic soda liquid enters the dissolving kettle 5 through the caustic soda liquid inlet 51, the imine enters the dissolving kettle 5 through the imine inlet 52, and the caustic soda liquid and the imine are dissolved in the dissolving kettle 5 to generate anthranilic alcohol; the methanol outlet 53 is communicated with the methanol inlet 11, and the anthranilic alcohol in the dissolving kettle 5 can flow into the degradation kettle 1 through the methanol outlet 53 and the methanol inlet 11.

In this embodiment, please refer to fig. 2, the utility model discloses still include rectifying still 6, rectifying still 6 has methyl ester entry 61, methyl ester entry 61 and methyl ester export 13 intercommunication, and methyl anthranilate in the degradation cauldron 1 enters into rectifying still 6 through methyl ester export 13 and methyl ester entry 61 in, purifies methyl anthranilate through the mode of rectification.

It should be noted that the semiconductor refrigeration piece 2 is connected to a controller, the controller is connected to the telescopic assembly 41, and the controller can control the refrigeration temperature of the semiconductor refrigeration piece 2 and the telescopic amplitude and telescopic frequency of the telescopic assembly 41; further, the controller is preferably a PLC, and the telescopic assembly 41 is preferably an electric push rod, an air cylinder, or a hydraulic cylinder.

As a preferred technical scheme, the side wall of the degradation kettle 1 and the side wall of the annular groove 14 are both made of heat insulation materials, specifically, the side wall of the degradation kettle 1 and the side wall of the annular groove 14 are both provided with heat insulation layers, and the heat insulation layers are preferably made of glass fiber, asbestos, rock wool or silicate.

In this embodiment, please refer to fig. 1 and fig. 2, the plurality of annular grooves 14 are provided, the plurality of annular grooves 14 are uniformly distributed along the vertical direction, and the plurality of semiconductor cooling fins 2 can be uniformly arranged on the degradation kettle 1, so as to ensure uniform temperature in the degradation kettle 1 and effectively improve the cooling effect of the degradation kettle 1.

In this embodiment, referring to fig. 1 and fig. 2, the heat dissipation cavity 3 is provided with a heat exchange medium inlet 31 and a heat exchange medium outlet 32, the heat exchange medium inlet 31 is located at the lower end of the heat dissipation cavity 3, and the heat exchange medium outlet 32 is located at the upper end of the heat dissipation cavity 3, so that the heat absorption effect of the heat exchange medium can be effectively improved; specifically, the heat exchange medium is preferably water or heat exchange oil.

In this embodiment, referring to fig. 1, the spoiler 4 has a plurality of through holes 42, and when the spoiler 4 moves up and down, the through holes 42 can further improve the mixing effect of the anthranilic alcohol and the sodium hypochlorite in the degradation kettle 1, so as to further improve the degradation speed and the degradation effect.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A methyl anthranilate production device is characterized by comprising a degradation kettle, wherein the degradation kettle is provided with a methanol inlet, a sodium hypochlorite inlet and a methyl ester outlet, the side wall of the degradation kettle is provided with an annular groove, the bottom wall of the annular groove is made of a heat conduction material, a semiconductor refrigeration piece is arranged in the annular groove, and the cold end of the semiconductor refrigeration piece is attached to the bottom wall of the annular groove; a heat dissipation cavity is arranged outside the side wall of the degradation kettle, the heat dissipation cavity accommodates the hot end of the semiconductor refrigeration sheet, and a heat exchange medium is filled in the heat dissipation cavity; the top wall in the degradation kettle is provided with a telescopic assembly, and the lower end of the telescopic assembly is provided with an inverted conical spoiler.

2. The production device of methyl anthranilate according to claim 1, characterized by further comprising a dissolution kettle, wherein the dissolution kettle is provided with a liquid caustic soda inlet, an imine inlet and a methanol outlet, and the methanol outlet is communicated with the methanol inlet.

3. The methyl anthranilate production plant according to claim 1 or 2, characterized by further comprising a rectifying still having a methyl ester inlet in communication with the methyl ester outlet.

4. The apparatus for producing methyl anthranilate according to claim 1, wherein the semiconductor refrigeration plate is connected with a controller, and the controller is connected with the telescopic assembly.

5. The apparatus for producing methyl anthranilate according to claim 4, wherein the controller is a PLC, and the telescopic assembly is an electric push rod, an air cylinder or a hydraulic cylinder.

6. The apparatus for producing methyl anthranilate according to claim 1, wherein the side wall of the degradation kettle and the side wall of the annular groove are made of heat insulating materials.

7. The apparatus for producing methyl anthranilate according to claim 1, wherein the plurality of annular grooves are provided, and the plurality of annular grooves are uniformly distributed in the vertical direction.

8. The apparatus for producing methyl anthranilate according to claim 1, wherein the heat dissipation chamber is provided with a heat exchange medium inlet and a heat exchange medium outlet, the heat exchange medium inlet is positioned at the lower end of the heat dissipation chamber, and the heat exchange medium outlet is positioned at the upper end of the heat dissipation chamber.

9. The apparatus for producing methyl anthranilate according to claim 1 or 8, wherein the heat exchange medium is water or heat exchange oil.

10. The apparatus for producing methyl anthranilate according to claim 1, wherein the spoiler is provided with a plurality of through holes.