CN217351228U

CN217351228U - Continuous vulcanization reaction device

Info

Publication number: CN217351228U
Application number: CN202221534392.6U
Authority: CN
Inventors: 王艳红; 孙仿建; 董学建; 王泽东; 袁令华
Original assignee: Shandong Yubin New Material Co ltd
Current assignee: Shandong Yubin New Material Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-02
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a continuous vulcanization reaction device, which comprises a tubular reactor, wherein the upper part of the tubular reactor is communicated with a stirring and dissolving kettle, and the bottom of the tubular reactor is sequentially communicated with a standing and layering tank and a product collecting tank; the lower part of the tubular reactor is also provided with a hydrogen sulfide inlet; the stirring and dissolving kettle is respectively communicated with a methyl acrylate metering tank, an ammonia water metering tank and a sulfur powder storage tank. The device can realize the continuous production of products, and can greatly shorten the reaction time and improve the product productivity.

Description

Continuous vulcanization reaction device

Technical Field

The utility model relates to a chemical industry technical field, concretely relates to continuous vulcanization reaction unit.

Background

Dimethyl dithiodipropionate, a yellowish to colorless transparent liquid, is an important intermediate for synthesizing the isozaolone industrial mildew preventive, and can also be used as a nickel plating brightener and a metal surface cleaner.

At present, a synthesis device for dimethyl dithiodipropionate usually adds reaction raw materials into a reaction kettle for carrying out a vulcanization reaction, the synthesis device can not realize the continuous production of products, a large amount of waste water is generated in the production process, and the yield of the prepared products is low.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: aiming at the defects in the prior art, the continuous vulcanization reaction device is provided, the continuous production of products can be realized, the reaction time can be greatly shortened, and the product productivity is improved.

In order to solve the technical problem, the technical scheme of the utility model is that:

a continuous vulcanization reaction device comprises a tubular reactor, wherein the upper part of the tubular reactor is communicated with a stirring and dissolving kettle, and the bottom of the tubular reactor is sequentially communicated with a standing and layering tank and a product collecting tank; the lower part of the tubular reactor is also provided with a hydrogen sulfide inlet;

the stirring and dissolving kettle is respectively communicated with a methyl acrylate metering tank, an ammonia water metering tank and a sulfur powder storage tank.

Preferably, a stirring device is arranged in the stirring and dissolving kettle.

Preferably, the top of the tubular reactor is provided with a gas outlet.

Preferably, the standing layering tank is communicated with an ammonia water metering tank.

As the optimization of above-mentioned technical scheme, the quantity of stirring dissolving kettle is at least two, and two at least stirring dissolving kettles are equallyd divide and are respectively communicated with methyl acrylate metering tank, aqueous ammonia metering tank, sulphur powder storage tank.

Preferably, the number of the standing layering tanks is at least two, and the at least two standing layering tanks are communicated with the product collecting tank.

Since the technical scheme is used, the beneficial effects of the utility model are that:

the utility model provides a continuous vulcanization reaction device, which comprises a tubular reactor, wherein the upper part of the tubular reactor is communicated with a stirring and dissolving kettle, and the bottom of the tubular reactor is sequentially communicated with a standing and layering tank and a product collecting tank; the lower part of the tubular reactor is also provided with a hydrogen sulfide inlet; the stirring and dissolving kettle is respectively communicated with a methyl acrylate metering tank, an ammonia water metering tank and a sulfur powder storage tank. When the dimethyl dithiodipropionate is prepared, firstly, the methyl acrylate, the ammonia water and the sulfur powder are fully and uniformly mixed in the stirring and dissolving kettle, then the mixed liquid in the stirring and dissolving kettle is introduced from the upper part of the tubular reactor, the hydrogen sulfide gas enters from the hydrogen sulfide inlet, and the hydrogen sulfide gas and the mixed liquid are fully contacted and reacted in the tubular reactor, so that the purity and the yield of the product are high, the heat exchange efficiency of the tubular reactor is high, the reaction time can be effectively shortened, and the productivity of the product is further improved. And the hydrogen sulfide gas and the sulfur powder are respectively introduced from the lower part and the upper part of the tubular reactor at the same time, so that the problem of hydrogen sulfide gas escape during sulfur powder feeding is avoided, and the safety and the environmental protection of product production are ensured.

The stirring dissolving kettle of the device is internally provided with a stirring device, so that the raw materials entering the stirring dissolving kettle are fully mixed uniformly, the subsequent raw materials can fully participate in the reaction, the production cost of the product is reduced, and the high yield and high purity of the product can be ensured.

The top of the tubular reactor of the device is provided with a gas outlet, so that the escaped hydrogen sulfide gas in production can be conveniently collected for recycling. The layering jar that stews of this device still communicates with the aqueous ammonia metering tank, and there is the aqueous ammonia in the water layer of collecting after the layering of the feed liquid after the reaction in the layering jar that stews, collects and carries out reuse in the aqueous ammonia metering tank, practices thrift product preparation cost.

The device comprises at least two stirring and dissolving kettles, wherein the at least two stirring and dissolving kettles are respectively communicated with a methyl acrylate metering tank, an ammonia water metering tank and a sulfur powder storage tank; the number of the standing layering tanks is at least two, the at least two standing layering tanks are communicated with the product collecting tank, and the plurality of stirring dissolving kettles and the plurality of standing layering tanks can be alternately used, so that the continuous production of the product is realized.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a tubular reactor according to an embodiment of the present invention;

in the figure, 1, a tubular reactor; 2. a first stirring and dissolving kettle; 3. a second stirring and dissolving kettle; 4. a first methyl acrylate metering tank; 5. a first ammonia metering tank; 6. a first sulfur powder storage tank; 7. a second methyl acrylate metering tank; 8. a second ammonia metering tank; 9. a second sulfur powder storage tank; 10. a first standing and layering tank; 11. a second standing and layering tank; 12. a product collection tank; 13. a hydrogen sulfide inlet; 14. a stirring device; 15. and a gas outlet.

Detailed Description

The invention is further explained below by referring to the drawings and examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Examples

As shown in fig. 1 and fig. 2, a continuous vulcanization reaction apparatus comprises a tubular reactor 1, wherein the upper part of the tubular reactor 1 is communicated with two stirring and dissolving kettles, namely a first stirring and dissolving kettle 2 and a second stirring and dissolving kettle 3; the first stirring and dissolving kettle 2 is respectively communicated with a first methyl acrylate metering tank 4, a first ammonia water metering tank 5 and a first sulfur powder storage tank 6; the second stirring and dissolving kettle 3 is respectively communicated with a second methyl acrylate metering tank 7, a second ammonia water metering tank 8 and a second sulfur powder storage tank 9; in the actual production, the first stirring and dissolving kettle 2 and the second stirring and dissolving kettle 3 are alternately used, so that the continuous production of the dimethyl dithiodipropionate is effectively ensured.

The bottom of the tubular reactor 1 is respectively communicated with a first standing and layering tank 10 and a second standing and layering tank 11, and the first standing and layering tank 10 and the second standing and layering tank 11 are both communicated with a product collecting tank 12. First layering jar 10 that stews still communicates with first aqueous ammonia metering tank 5, and the second layering jar 11 that stews still communicates with second aqueous ammonia metering tank 8, and when production, the water layer after the layering in first layering jar 10, the second layering jar 11 that stews can enter into first aqueous ammonia metering tank 5, reuse in the second aqueous ammonia metering tank 8, has effectively practiced thrift the preparation cost of product.

The lower part of the tubular reactor 1 is also provided with a hydrogen sulfide inlet 13, hydrogen sulfide gas entering the tubular reactor 1 is in full contact reaction with feed liquid, and the prepared product has high purity.

Further, stirring devices 14 are arranged in the first stirring and dissolving kettle 2 and the second stirring and dissolving kettle 3; preferably, the stirring device can adopt one or more of anchor type stirring, frame type stirring and paddle type stirring.

Further, the top of the tubular reactor 1 is provided with a gas outlet 15.

Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims

1. A continuous vulcanization reaction device is characterized in that: the device comprises a tubular reactor, wherein the upper part of the tubular reactor is communicated with a stirring and dissolving kettle, and the bottom of the tubular reactor is sequentially communicated with a standing and layering tank and a product collecting tank; the lower part of the tubular reactor is also provided with a hydrogen sulfide inlet;

2. A continuous vulcanization reaction device according to claim 1, wherein: and a stirring device is arranged in the stirring and dissolving kettle.

3. A continuous vulcanization reaction device according to claim 1, wherein: and a gas outlet is arranged at the top of the tubular reactor.

4. A continuous vulcanization reaction device according to claim 1, wherein: the standing layering tank is also communicated with an ammonia water metering tank.

5. A continuous vulcanization reaction device according to claim 1, wherein: the quantity of stirring dissolving kettle is at least two, and two at least stirring dissolving kettles are equallyd divide and are respectively communicated with methyl acrylate metering tank, aqueous ammonia metering tank, sulphur powder storage tank.

6. A continuous vulcanization reaction device according to claim 1, wherein: the number of the standing layering tanks is at least two, and the at least two standing layering tanks are communicated with the product collecting tank.