CN216799775U

CN216799775U - Temperature control system of carboxylation reaction kettle

Info

Publication number: CN216799775U
Application number: CN202123320670.6U
Authority: CN
Inventors: 孔凡泉; 李本军; 相志浩; 郭佳佳; 曾凤凤; 郑明君
Original assignee: Weifang Yongquan Machinery Manufacturing Co ltd
Current assignee: Weifang Yongquan Machinery Manufacturing Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-24
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a temperature control system of a carboxylation reaction kettle, which comprises a cylindrical kettle body, wherein an elliptical upper end socket is sealed at the upper end of the kettle body, an elliptical lower end socket is sealed at the lower end of the kettle body, a jacket is coated on the peripheries of the kettle body and the lower end socket, a sealed space is formed among the jacket, the kettle body and the lower end socket, a medium inlet is formed in the bottom of the jacket, a medium outlet is formed in the upper part of the jacket, a steam inlet is formed in the upper end socket, a stirring shaft is rotatably arranged in the kettle body, a stirring paddle is arranged on the stirring shaft, a first steam channel for introducing steam is arranged in the stirring shaft, one end of the stirring shaft is arranged as a steam inlet, and the other end of the stirring shaft is arranged as a steam outlet. Through steam inlet and first steam channel, directly to the internal heating of cauldron, improved temperature control's efficiency, and then improved production efficiency.

Description

Temperature control system of carboxylation reaction kettle

Technical Field

The utility model relates to the technical field of carboxylation reaction kettles, in particular to a temperature control system of a carboxylation reaction kettle.

Background

The carboxylation reaction kettle (also called carboxylation pot, short for reaction kettle) is a device for preparing salicylic acid, the production process is adding water and sodium phenolate into the kettle, fully stirring and mixing, then introducing carbon dioxide for reaction, keeping the temperature in the kettle in a certain range during the reaction, opening a discharge port after the reaction is finished, taking out the product, and cleaning the kettle for next preparation. Therefore, the structure of the carboxylation reaction kettle is complex, and comprises a stirring system, a feeding system, an air inlet system, an exhaust system, a temperature control system and the like. The current mature carboxylation reaction kettle has small volume, which is usually 3m³The yield of each product preparation is limited, and if the yield of each production is increased, the capacity of the reaction kettle is only increased, however, after the capacity of the reaction kettle is increased, the temperature is difficult to be quickly controlled only by the jacket on the periphery of the kettle body, so that the production time is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a temperature control system of a carboxylation reaction kettle, which can meet the requirement of a large-capacity carboxylation reaction kettle on temperature control and quickly adjust the temperature in the kettle, thereby improving the production efficiency.

In order to solve the technical problem, the technical scheme of the utility model is as follows: carboxylation reation kettle temperature control system, including the cylindric cauldron body, the sealed upper cover that has the ellipse circular form in cauldron body upper end, the sealed lower head that has the ellipse circular form of lower extreme, the cauldron body with the periphery cladding of lower head has the clamp cover, it forms a confined space between the clamp cover and the cauldron body and the lower head, the bottom that presss from both sides the cover is equipped with the medium entry, the upper portion that presss from both sides the cover is equipped with the medium export, be equipped with steam inlet on the upper cover, the (mixing) shaft is installed to the internal rotation of cauldron, install the stirring rake on the (mixing) shaft, be equipped with the first steam channel that lets in steam in the (mixing) shaft, the one end of (mixing) shaft is established to steam inlet, and the other end is established to steam outlet.

Due to the adoption of the technical scheme, the temperature is controlled by the jacket, the steam inlet is formed in the upper end enclosure, the steam can be introduced, the temperature can be rapidly increased, meanwhile, the first steam channel is formed in the stirring shaft, the steam can be introduced, the temperature in the kettle can be rapidly increased, the control capacity of the temperature in the kettle is improved, the production time of products can be shortened, and the production efficiency is improved. Because the increase of cauldron body capacity, the diameter of (mixing) shaft also follows the increase, has sufficient space and intensity to add first steam passageway, is equipped with the weight that first steam passageway can alleviate the (mixing) shaft, reduces the energy consumption.

As a preferable scheme, a second steam channel is arranged on the stirring paddle and communicated with the first steam channel. When the stirring paddle increases to sufficient size, set up second steam channel in the stirring paddle, can accelerate the improvement of the interior temperature of cauldron, reduce the weight of stirring paddle.

As a preferable scheme, a radiating blade is arranged above the stirring shaft, the radiating blade is positioned above the stirring paddle, the radiating blade is provided with a third steam channel, and the third steam channel is communicated with the first steam channel. Through addding the thermal paddle, can promote the control to the temperature in the cauldron, the thermal paddle does not participate in the stirring moreover, and material strength does not require so high, and what can make is comparatively light.

Preferably, the number of the medium outlets is two, and the two medium outlets are symmetrically arranged around the jacket.

Drawings

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

FIG. 2 is a sectional view of the paddle taken along the line A-A in FIG. 1.

In the figure: 1, a kettle body; 2, sealing an end socket; 3, lower end enclosure; 4, jacket; 41, a media inlet; 42, a media outlet; 5, a steam inlet; 6, stirring the shaft; 61, a first steam channel; 7, a stirring paddle; 71, a second steam channel; 8, radiating fins; 81, a third steam channel.

Detailed Description

The utility model is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1, the temperature control system of the carboxylation reaction kettle comprises a cylindrical kettle body 1, an elliptical upper end enclosure 2 is sealed at the upper end of the kettle body 1, an elliptical lower end enclosure 3 is sealed at the lower end, a jacket 4 is coated on the periphery of the kettle body 1 and the lower end enclosure 3, a sealed space is formed between the jacket 4 and the kettle body 1 and the lower end enclosure 3, a medium inlet 41 is arranged at the bottom of the jacket 4, a medium outlet 42 is arranged at the upper part of the jacket 4, two medium outlets 42 are arranged, the two medium outlets 42 are symmetrically arranged at two sides of the jacket 4, a steam inlet 5 is arranged on the upper end enclosure 2, the steam inlet 5 can be shared with a water inlet of the kettle body 1, so as to save the internal rotation installation space, a stirring shaft 6 is arranged on the kettle body 1, a stirring paddle 7 is arranged on the stirring shaft 6, a first steam channel 61 for introducing steam is arranged in the stirring shaft 6, one end of the stirring shaft 6 is arranged as a steam inlet, the other end is set as a steam outlet, the stirring shaft is rotary, therefore, shaft seals are needed to be arranged at the two ends of the stirring shaft to prevent air leakage of the steam inlet and the steam outlet, and the designs are conventional technical means, not shown in the figure and are not described again. Steam is introduced through the steam inlet 5, and the temperature in the kettle can be quickly improved by introducing the steam into the stirring shaft 6, so that the production efficiency is improved.

As a further technical improvement, a second steam passage 71 is arranged on the stirring paddle 7, and the second steam passage 71 is communicated with the first steam passage 61, so that the stirring paddle 7 and the stirring shaft 6 need to be sealed to prevent steam leakage. When the stirring paddle 7 is increased to a sufficient size, the second steam channel 71 is arranged in the stirring paddle 7, so that the temperature in the kettle can be increased, the strength of the stirring paddle 7 is not influenced, the weight of the stirring paddle 7 can be reduced, and the energy consumption is reduced.

As a further technical improvement, a heat radiating blade 8 is arranged above the stirring shaft 6, the heat radiating blade 8 is arranged above the stirring paddle 7, the heat radiating blade 8 is provided with a third steam channel 81, and the third steam channel 81 is communicated with the first steam channel 61. Through addding radiating paddle 8, can promote the control dynamics to the temperature in the cauldron, radiating paddle 8 does not participate in the stirring moreover, and material strength does not require so high, comparatively light that can make.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Carboxylation reation kettle temperature control system, including the cylindric cauldron body, the sealed upper cover that has the ellipse circular of cauldron body upper end, the sealed lower cover that has the ellipse circular of lower extreme, the cauldron body with the periphery cladding of lower cover has the clamp cover, it forms a confined space between the clamp cover and the cauldron body and the lower cover, the bottom of pressing from both sides the cover is equipped with the medium entry, the upper portion that presss from both sides the cover is equipped with medium export, its characterized in that: the reactor comprises a kettle body, and is characterized in that a steam inlet is formed in the upper end enclosure, a stirring shaft is installed in the kettle body in a rotating mode, a stirring paddle is installed on the stirring shaft, a first steam channel for introducing steam is arranged in the stirring shaft, a steam inlet is formed in one end of the stirring shaft, and a steam outlet is formed in the other end of the stirring shaft.

2. The carboxylation reactor temperature control system according to claim 1, wherein: and a second steam channel is arranged on the stirring paddle and communicated with the first steam channel.

3. The carboxylation reactor temperature control system according to claim 1, wherein: and a radiating blade is arranged above the stirring shaft and positioned above the stirring paddle, and a third steam channel is arranged on the radiating blade and communicated with the first steam channel.

4. The carboxylation reactor temperature control system according to claim 1, wherein: the number of the medium outlets is two, and the two medium outlets are symmetrically arranged around the jacket.