CN210700029U

CN210700029U - Continuous esterification reaction device

Info

Publication number: CN210700029U
Application number: CN201920988166.7U
Authority: CN
Inventors: 关鉴平
Original assignee: Yingkou Hengyang New Energy Chemical Co Ltd
Current assignee: Yingkou Hengyang New Energy Chemical Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-09
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to a continuous reaction unit esterifies, the pans set up in the main reaction jar below, and the pans below is equipped with electric discharger, and mixed sprayer is connected to electric discharger below, mixes sprayer nozzle tube coupling roots fan, and mixed sprayer conveying line connects the buffer tank, and the buffer tank passes through circulation pipeline and connects main reaction jar top. The reaction materials in the mixing ejector are in full contact reaction with carbon dioxide in gas, the gas is excessive relative to the reaction materials, and in addition, the reaction materials are in contact reaction with the gas in a circulating mode, so that the full reaction of the reaction materials is promoted, the conversion rate is improved, and the yield is improved.

Description

Continuous esterification reaction device

Technical Field

The utility model relates to a chemical production technical field, concretely relates to continuous reaction unit esterifies.

Background

Esterification is a type of organic chemical reaction, which is the reaction of alcohol with carboxylic acid or oxygen-containing inorganic acid to produce ester and water. The esterification reaction is a reversible reaction, and as the reaction proceeds, the reactant is less and less, the product is more and more, and the reaction rate is slower and slower. The ethylene carbonate/propylene carbonate is generated by mixing and reacting ethylene oxide/propane and carbon dioxide, and the reaction process comprises the following steps: although the ethylene oxide/propane from the storage tank and the carbon dioxide are mixed and reacted, gas is continuously blown into the reaction kettle, the gas quantity is small relative to the reactant quantity, the excessive carbon dioxide cannot be ensured, the gas and the reactant cannot be in full contact, the reaction is slow, and the conversion rate is low.

In order to promote the reaction, the device needs to be improved, so that the excessive gas is promoted to be fully contacted with the reactants, the reaction conversion rate is increased, and the product content is increased.

Disclosure of Invention

An object of the utility model is to solve above-mentioned problem, provide the continuous reaction unit esterifies, it promotes the reaction conversion, improves the product content.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

the continuous esterification reaction device is characterized by comprising a main reaction tank, a middle tank, a buffer tank, a Roots blower and a mixing ejector, wherein the middle tank is arranged below the main reaction tank, an electric discharger is arranged below the middle tank, the mixing ejector is connected below the electric discharger, the Roots blower is connected with a nozzle pipeline of the mixing ejector, a conveying pipeline of the mixing ejector is connected with the buffer tank, the buffer tank is connected with a circulating pipeline through a material beating pump, and the circulating pipeline is connected with the upper part of the main reaction tank.

Further, the mixing ejector comprises a feeding hopper, a nozzle and a diffuser, the feeding hopper is arranged above the diffuser, the nozzle extends into the diffuser, the inner structure of the diffuser is a Venturi tube, and the other end of the diffuser is connected with the conveying pipe.

Compared with the prior art, the utility model discloses favourable effect does:

(1) the Roots blower blows gas into the mixing ejector, the reaction materials enter from the feed inlet of the mixing ejector, and under the blowing of the rear gas, the reaction materials in the mixing ejector are fully contacted and reacted with carbon dioxide in the gas, the gas is excessive relative to the reaction materials, the reaction materials are promoted to fully react, the conversion rate is improved, and the yield is increased.

(2) The reaction materials continuously enter the mixing ejector to contact and react with the gas, so that the reaction materials are further promoted to fully react, the conversion rate is improved, and the yield is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a structural diagram of the esterification continuous reaction device of the present invention;

FIG. 2 is a schematic diagram of a mixing injector according to the present invention;

description of reference numerals: a main reaction tank-1, a middle tank-2, a buffer tank-3, a Roots blower-4, a mixing ejector-5, a feeding hopper-51, a nozzle-52, a diffuser-53, an electric discharger-6 and a gas filter-7.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to the description attached drawing 1, the continuous reaction unit esterifies, including main retort 1, intermediate tank 2, buffer tank 3, roots blower 4, mixing ejector 5, intermediate tank 2 sets up in main retort 1 below, 2 below of intermediate tank are equipped with electronic tripper 6, mixing ejector 5 is connected to 6 below of electronic tripper, 5 nozzle tube connections roots blower 4 of mixing ejector, gas filter 7 is connected to roots blower's air inlet, gas filter is the inside storage tank that is equipped with the filter core, the storage tank top is equipped with the air inlet, gas filter is used for filtering dust removal to the gas of participating in the reaction and handles. Mix 5 delivery line connection buffer tank 3 of sprayer, the buffer tank top is equipped with pressure regulating valve, pressure regulating valve is used for controlling buffer tank and mixed sprayer internal pressure and remains stable, buffer tank 3 is through knockout pump connection circulation pipeline, 1 top in circulation pipeline connection main reaction jar, the material is from the main reaction jar, the pans, mix the sprayer, the buffer tank carries out reciprocal circulation, the main reaction jar has the cover that presss from both sides, press from both sides the inside steam that leads to of cover, be used for heating its inside material, the inside temperature sensor that is equipped with of main reaction jar, temperature sensor and the solenoid valve connection control who presss from both sides on the cover steam pipe way, the buffer tank has the heat preservation function, the chemical reaction temperature is mainly controlled by the main reaction jar. The Roots blower blows gas into the mixing ejector, the reaction materials enter from the feed inlet of the mixing ejector, the reaction materials in the mixing ejector are in full contact reaction with carbon dioxide in the gas, the gas is excessive relative to the reaction materials, and in addition, the reaction materials are circulated and in contact reaction with the gas, so that the full reaction of the reaction materials is promoted, the conversion rate is improved, and the yield is increased.

Further, the mixing injector 5 includes a feeding hopper 51, a nozzle 52, and a diffuser 53, wherein the feeding hopper 51 is disposed above the diffuser 53, the nozzle extends into the diffuser 53, the diffuser has a venturi structure, and the other end of the diffuser is connected to the delivery pipe. The mixing chamber of the mixing ejector 5 adopts a Venturi tube structure, so that materials are fully and quickly mixed in the diffuser, the mixing effect of gas and a desulfurizing agent is improved, and the gas desulfurization effect is better.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The continuous esterification reaction device is characterized by comprising a main reaction tank, a middle tank, a buffer tank, a Roots blower and a mixing ejector, wherein the middle tank is arranged below the main reaction tank, an electric discharger is arranged below the middle tank, the mixing ejector is connected below the electric discharger, the Roots blower is connected with a nozzle pipeline of the mixing ejector, a conveying pipeline of the mixing ejector is connected with the buffer tank, the buffer tank is connected with a circulating pipeline through a material beating pump, and the circulating pipeline is connected with the upper part of the main reaction tank.

2. The continuous esterification reactor according to claim 1, wherein the mixing injector comprises a hopper, a nozzle, and a diffuser, the hopper is disposed above the diffuser, the nozzle extends into the diffuser, the diffuser is internally configured as a venturi, and the other end of the diffuser is connected to the delivery pipe.