CN211863919U

CN211863919U - Sectional overflow spraying type crystallizer

Info

Publication number: CN211863919U
Application number: CN201922221916.0U
Authority: CN
Inventors: 祝捷
Original assignee: Laohekou Huachen Chemical Co ltd
Current assignee: Laohekou Huachen Chemical Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-11-06
Anticipated expiration: 2029-12-12

Abstract

The utility model provides a segmentation overflow fountain crystallizer. The crystallization device comprises a main shaft, an upper disc and a lower disc which are coaxially arranged on the main shaft, wherein the upper disc is opposite to the feeding pipe, and the edge of the upper disc is provided with an overflow port; a plurality of spray nozzles are also arranged in the crystallization tower, and cold air is sprayed out of the spray nozzles; and a refrigerating device is also arranged at the bottom of the crystallization tower. The utility model discloses simple structure has changed traditional crystallization mode, can improve the speed of crystallization, has guaranteed the quality of crystallization, has improved the efficiency of production.

Description

Sectional overflow spraying type crystallizer

Technical Field

The utility model relates to a chemical industry equipment technical field, in particular to segmentation overflow fountain crystallizer.

Background

The crystallization method is one of the commonly used methods for separating and purifying organic compounds, and is widely applied to the fields of chemical industry, medicine, environmental protection and the like.

At present, the crystallizer commonly used by domestic chemical enterprises is a water-cooled crystallizer. The water-cooled crystallizer is a more original crystallizer, and has simple structure, closed circulation of cooling water, large water consumption and poor cooling effect.

Some enterprises also use spray type crystallization, but generally adopt column type spray crystallization devices, and the column type crystallization often has the phenomenon that the temperature difference of upper and lower section crystallization is larger, which affects the final finished product.

Therefore, a new crystallizer needs to be designed.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect, provide a simple structure, change traditional crystallization mode, adopt disc structure and overflow mode to crystallize, can improve the speed of crystallization for the same of each position temperature of crystal solid guarantees the quality of crystallization, improves the segmentation overflow fountain crystallizer of the efficiency of production.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the sectional overflow spraying type crystallizer comprises a crystallization tower, wherein a feed inlet and a feed pipe for liquid substances are arranged above the crystallization tower, and the sectional overflow spraying type crystallizer is characterized in that a disc type crystallization device is arranged in the crystallization tower, the disc type crystallization device comprises a main shaft, an upper disc and a lower disc which are coaxially arranged on the main shaft, the upper disc and the lower disc are both of hollow structures with open surfaces, the interiors of the upper disc and the lower disc are both used for containing liquid to be crystallized, the upper disc is opposite to the feed pipe, and an overflow port is arranged at the edge of the upper; the diameter of the lower disc is larger than that of the upper disc, and the outer diameter of the lower disc exceeds the vertical projection of the overflow port, so that liquid overflowing from the upper disc through the overflow port falls into the lower disc; the crystallization tower is also internally provided with a plurality of spray nozzles, cold air is sprayed out of the spray nozzles and is aligned with the bottoms of the upper disc and the lower disc to be cooled; the bottom of the crystallization tower is also provided with a refrigerating device for providing cold air for the spray nozzle.

In the scheme, the upper disc and the lower disc are both made of heat conducting materials and are fixedly mounted on the spindle, and an enough distance for spraying cold air is reserved between the upper disc and the lower disc.

In the scheme, the spray nozzles are arranged on two sides of the inner wall of the crystallization tower and are lower than the upper disc, and the spray direction of the spray nozzles is obliquely upward and is opposite to the bottoms of the upper disc and the lower disc.

In the scheme, the refrigerating device is hermetically arranged at the bottom of the crystallization tower and isolated from the upper space, and cold air is conveyed to the spray nozzle through a pipeline.

The principle of the utility model lies in:

change traditional column type crystallization mode, adopt the disk formula, guarantee crystallization temperature's that can maximize the same, two segmentation crystallization about adopting simultaneously, the liquid that goes up the disk begins to cool down when the in-process flows, when flowing into down the disk through the overflow mouth, the temperature has fallen to the melting point that is about to the crystallization, therefore the crystallization rate will be fast, and the crystallization rate of two disks will exceed original speed, and the homoenergetic guarantees the quality of crystallization.

The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:

the utility model discloses simple structure has changed traditional crystallization mode, adopts disc structure and overflow mode to crystallize, can improve the speed of crystallization for the same of each position temperature of crystal solid has guaranteed the quality of crystallization, has improved the efficiency of production.

Drawings

FIG. 1 is a schematic diagram of a four-way reversing valve according to an embodiment of the present invention;

in the figure: 1, a feeding port 3 of a crystallization tower 2, an upper disc 5 of a main shaft 4, a lower disc 6 of a disc 5, a spray nozzle 7, a refrigerating device 9 and a feeding pipe of the refrigerating device 8.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1, the sectional overflow spray-type crystallizer comprises a crystallization tower 1, a feed inlet 2 and a feed pipe 9 for liquid substances are arranged above the crystallization tower 1, a disc-type crystallization device is arranged in the crystallization tower 1, and comprises a main shaft 3, an upper disc 4 and a lower disc 5 which are coaxially arranged on the main shaft 3, both of which are hollow structures with open surfaces, and both of which are used for containing liquid to be crystallized, wherein the upper disc 4 is opposite to the feed pipe 9, and an overflow port 6 is arranged at the edge of the upper disc 4; the diameter of the lower disc 5 is larger than that of the upper disc 4, and the outer diameter of the lower disc 5 exceeds the vertical projection of the overflow port 6, so that the liquid overflowing from the upper disc 4 through the overflow port 6 falls into the lower disc 5; the crystallization tower 1 is also internally provided with a plurality of spray nozzles 7, cold air is sprayed out of the spray nozzles 7, the spray nozzles 7 are arranged on two sides of the inner wall of the crystallization tower 1 and are lower than the upper disc 4, and the spray direction of the spray nozzles 7 is obliquely upward and is opposite to the bottoms of the upper disc 4 and the lower disc 5; the bottom of the crystallization tower 1 is also provided with a refrigerating device 8, the refrigerating device 8 is hermetically arranged at the bottom of the crystallization tower 1 and isolated from the upper space, and cold air is conveyed to the spray nozzle 7 through a pipeline.

In this embodiment, the upper disk 4 and the lower disk 5 are both made of heat conductive material, and both are fixedly mounted on the spindle 3, and a sufficient space for spraying cooling air is reserved between the two.

When the liquid of the upper disk starts to cool in the flowing process and flows into the lower disk through the overflow port, the temperature is already reduced to the melting point of the liquid to be crystallized, so that the crystallization speed is increased, the crystallization speeds of the two disks exceed the original speed, and the crystallization quality can be ensured

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The sectional overflow spraying type crystallizer comprises a crystallization tower, wherein a feed inlet and a feed pipe for liquid substances are arranged above the crystallization tower, and the sectional overflow spraying type crystallizer is characterized in that a disc type crystallization device is arranged in the crystallization tower, the disc type crystallization device comprises a main shaft, an upper disc and a lower disc which are coaxially arranged on the main shaft, the upper disc and the lower disc are both of hollow structures with open surfaces, the interiors of the upper disc and the lower disc are both used for containing liquid to be crystallized, the upper disc is opposite to the feed pipe, and an overflow port is arranged at the edge of the upper; the diameter of the lower disc is larger than that of the upper disc, and the outer diameter of the lower disc exceeds the vertical projection of the overflow port, so that liquid overflowing from the upper disc through the overflow port falls into the lower disc; the crystallization tower is also internally provided with a plurality of spray nozzles, cold air is sprayed out of the spray nozzles and is aligned with the bottoms of the upper disc and the lower disc to be cooled; the bottom of the crystallization tower is also provided with a refrigerating device for providing cold air for the spray nozzle.

2. The segmented overflow spray crystallizer of claim 1, wherein: the upper disc and the lower disc are both made of heat conducting materials and are fixedly arranged on the main shaft, and an enough distance for cold air injection is reserved between the upper disc and the lower disc.

3. The segmented overflow spray crystallizer of claim 1, wherein: the spray nozzles are arranged on two sides of the inner wall of the crystallization tower and are lower than the upper disc, and the spray direction of the spray nozzles is obliquely upward and is opposite to the bottoms of the upper disc and the lower disc.

4. The segmented overflow spray crystallizer of claim 1, wherein: the refrigerating device is hermetically arranged at the bottom of the crystallization tower and isolated from the upper space, and cold air is conveyed to the spray nozzle through a pipeline.