CN212881137U

CN212881137U - Vertical wall-scraping type continuous crystallization device

Info

Publication number: CN212881137U
Application number: CN202021426478.8U
Authority: CN
Inventors: 史永文; 孙仲猛; 李永刚
Original assignee: Yantai Shenghua Liquid Crystal Material Co ltd
Current assignee: Yantai Shenghua Liquid Crystal Material Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-04-06
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a vertical wall type crystallization device that scrapes is equipped with the spiral shell area respectively in two sets of vertical containers and scrapes the wall stirring, the spiral shell area is scraped the upper end of wall stirring and is linked to each other with an agitator motor respectively, wherein the upper end of a set of vertical container is equipped with the material import, the upper end of another assemblage formula container is equipped with the material export, the container wall of the vertical container that has the material import is hollow container wall, leave refrigerant import and refrigerant export on the hollow container wall respectively, be equipped with crystal filter in the bottom of two sets of vertical containers, two sets of vertical containers pass through crystal filter and connect the intercommunication, be equipped with mother liquor export in crystal filter's bottom, the utility model has the characteristics of the yield is high, fast, low cost.

Description

Vertical wall-scraping type continuous crystallization device

Technical Field

The utility model belongs to the technical field of chemical industry equipment, especially, relate to a convenient, continuous, efficient continuous crystallization device.

Background

When a chemical product is refined, the situation that the position isomer exceeds the standard is easy to occur, and the refining method which can be usually adopted is rectification and recrystallization: when the refining is carried out by adopting a rectification method, because the difference of the boiling points of isomers is small, the purification efficiency is low, the energy consumption is high, and the quality index requirement of a refined product is difficult to meet; when the recrystallization method is adopted for purification, a large amount of solvent is consumed, and much product can be lost into recrystallization mother liquor, so that the yield is too low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to improve the defects of the prior art and provide a continuous crystallization device with high yield, high speed and low cost.

The utility model aims at realizing like this, a vertical wall type continuous crystallization device of scraping, including two sets of vertical containers, the spiral shell area of being equipped with respectively in the two sets of vertical containers of characterized by scrapes the wall stirring, the spiral shell area is scraped the upper end of wall stirring and is linked to each other with an agitator motor respectively, wherein the upper end of a set of vertical container is equipped with the material import, the upper end of another set of vertical container is equipped with the material export, the container wall that has the vertical container of material import is hollow container wall, leave refrigerant import and refrigerant export on the hollow container wall respectively, bottom at two sets of vertical containers is equipped with the crystallization filter, two sets of vertical containers pass through the crystallization filter and connect the intercommunication, bottom at the crystallization filter is equipped with the mother liquor export.

Compared with the prior art, the utility model has the following characteristics of showing and positive effect: the utility model discloses an installation spiral shell area scrapes the wall stirring in the container of two sets of vertical cavity container walls, and the motor drives the spiral shell area and scrapes the wall stirring and rotate and promote the material and go forward, and the refrigerant in the cavity container wall cools off the material, and the high melting point material gets into the crystallization filter after the in-process freezing through two sets of vertical containers is solidified, and the mother liquor export through the crystallization filter is discharged and is retrieved, and the low melting point material is because not reaching the freezing point and flow from the material export at whole flow in-process to the refining of product has been realized. The utility model discloses with the refined mode of current rectification or recrystallization, change into continuous crystallization mode, make by the refined product quick, the efficient obtains refine, various products that contain isomer impurity can obtain effectual purification after passing through this device, in addition, can not the refined yield of improvement of equidimension, practice thrift the cost.

Drawings

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

In the figure: 1. the device comprises a right stirring motor, 2, a material inlet, 3, a right refrigerant outlet, 4, a right vertical container, 5, a right refrigerant cooling jacket, 6, a right spiral shell belt wall scraping stirring device, 7, a right refrigerant inlet, 8, a crystallization filter, 9, a mother liquid outlet, 10, a left stirring motor, 11, a left spiral shell belt wall scraping stirring device, 12, a left vertical container, 13 and a material outlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

A vertical wall-scraping type continuous crystallization device is disclosed, referring to FIG. 1, a left vertical container 12 and a right vertical container 4 are vertically arranged side by side, in order to ensure the effect, two groups of containers are generally cylindrical, a left helical ribbon wall-scraping stirring motor 11 and a right helical ribbon wall-scraping stirring motor 6 are respectively arranged in the left vertical container 12 and the right vertical container 4, the upper end of the right helical ribbon wall-scraping stirring motor 6 is connected with a right stirring motor 1, the upper end of the left helical ribbon wall-scraping stirring motor 11 is connected with a left stirring motor 10, the right stirring motor 1 and the left stirring motor 10 respectively drive the right helical ribbon wall-scraping stirring motor 6 and the left helical ribbon wall-scraping stirring motor 11 to rotate, the right helical ribbon wall-scraping stirring motor 6 rotates to push the material to move from top to bottom, the left helical ribbon wall-scraping stirring motor 11 rotates to push the material to move from bottom to top, a material inlet 2 is arranged at the top end of the right vertical container 4, a material outlet 13 is, the cavity is used for filling a refrigerant to form a right refrigerant cooling jacket 5, a right refrigerant inlet 7 and a right refrigerant outlet 3 are arranged on the side surface of the right refrigerant cooling jacket 5, crystallization filters 8 are arranged at the bottoms of the left vertical container 12 and the right vertical container 4, the crystallization filters 8 are communicated with the inner cavities of the two groups of vertical containers, and a mother liquor outlet 9 is arranged at the bottom of each crystallization filter 8.

When the crystallized material enters the right vertical container 4 from the material inlet 2, the crystallized material flows through the crystallizing filter 8 under the pushing action of the right helical ribbon wall scraping stirring 6, then continuously enters the left vertical container 12, and then flows out from the material outlet 13 of the left vertical container 12 under the pushing action of the left helical ribbon wall scraping stirring 11, in the process, the high-melting-point material enters the crystallizing filter 8 after being frozen and solidified in the process of passing through the right vertical container 4, and the low-melting-point material flows out from the material outlet 13 because the freezing point is not reached in the whole flowing process, thereby realizing the refining of the product.

In practical use, a plurality of right vertical containers 4 can be connected in series and then connected with one left vertical container 12 for use as required, that is, the bottoms of two adjacent vertical containers are connected and communicated through one crystallization filter 8, and the tops of the two adjacent vertical containers are connected and communicated through a pipeline, so as to meet the requirement of multiple crystallization, and detailed description is omitted here.

Claims

1. The vertical wall scraping type continuous crystallization device comprises two groups of vertical containers and is characterized in that spiral belt wall scraping stirring devices are respectively arranged in the two groups of vertical containers, the upper ends of the spiral belt wall scraping stirring devices are respectively connected with a stirring motor, a material inlet is formed in the upper end of one group of vertical containers, a material outlet is formed in the upper end of the other group of vertical containers, the container wall of the vertical container with the material inlet is a hollow container wall, a refrigerant inlet and a refrigerant outlet are respectively reserved on the hollow container wall, a crystallization filter is arranged at the bottom of the two groups of vertical containers, the two groups of vertical containers are connected and communicated through the crystallization filter, and a mother liquid outlet is formed in the bottom of the crystallization filter.