CN213221023U

CN213221023U - Low-temperature condensation crystallization device

Info

Publication number: CN213221023U
Application number: CN202021066951.6U
Authority: CN
Inventors: 孙立佳; 裴栋中
Original assignee: Beijing Hengtai Jieneng Technology Co ltd
Current assignee: Beijing Hengtai Jieneng Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-05-18
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a device of low temperature condensation crystallization, including crystallizer and feed liquor pipe, the top fixedly connected with filter screen of crystallizer inner wall to the top intercommunication of crystallizer has the standpipe, the top intercommunication of standpipe has the compressor to the surface of standpipe is provided with the regenerator, there is the cooler one side of compressor through the connecting pipe intercommunication to one side intercommunication of cooler has the tubule, the top intercommunication on tubule surface has the nitrogen gas pipe, the utility model relates to the technical field. This device of low temperature condensation crystallization sets up through the cooperation of expander, intake pipe, air nozzle, hydrojet mouth, row's material pipe and crystal settling tank for accelerate cooling rate under the condition of not polluting the crystalline solid, improve cooling efficiency, thereby improve the product yield.

Description

Low-temperature condensation crystallization device

Technical Field

The utility model relates to a cooling crystallization technical field specifically is a device of low temperature condensation crystallization.

Background

The cooling thermal saturated solution crystallization method is called as the cooling thermal saturated solution method for short, and is also called as a cooling crystallization method. Cooling the hot saturated solution is a method for separating or purifying the solid substance according to the solubility of the substance at different temperatures (generally, the solubility is high at high temperature and low at low temperature). This method is mainly used for substances whose solubility decreases significantly with decreasing temperature.

At present, a cooling water crystallization process or an evaporation concentration process of partition wall heat exchange is generally adopted in chemical production, and the above process devices can consume a large amount of cooling water or steam, so that the production cost is high; and the adhesion of crystals on the heat exchange surface can greatly influence the heat exchange effect and increase the cooling time

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a device of low temperature condensation crystallization has solved manufacturing cost height, problem that cooling time is of a specified duration.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a low-temperature condensation crystallization device comprises a crystallizer and a liquid inlet pipe, wherein the top of the inner wall of the crystallizer is fixedly connected with a filter screen, and the top of the crystallizer is communicated with a vertical pipe, the top end of the vertical pipe is communicated with a compressor, the surface of the vertical pipe is provided with a heat regenerator, one side of the compressor is communicated with a cooler through a connecting pipe, one side of the cooler is communicated with a thin tube, the top of the surface of the thin tube is communicated with a nitrogen tube, the bottom end of the thin tube is communicated with an expander, and the bottom of the expansion machine is communicated with an air inlet pipe, one end of the air inlet pipe penetrates through the crystallizer and extends into the crystallizer, the surface of the air inlet pipe extending to one end inside the crystallizer is communicated with an air nozzle, one end of the liquid inlet pipe penetrates through the crystallizer and extends into the crystallizer, and a liquid spraying nozzle is communicated below the liquid inlet pipe extending to the surface inside the crystallizer.

Preferably, the bottom of the crystallizer is communicated with a discharge pipe, the bottom end of the discharge pipe is communicated with a crystal settling tank, and the bottom of the crystal settling tank is communicated with a crystal discharge pipe.

Preferably, one side of the top of the crystal settling tank is communicated with a liquid outlet pipe, and one end of the liquid outlet pipe is communicated with a circulating pump.

Preferably, the top of the circulating pump is communicated with a return pipe, and one end of the return pipe, which is far away from the circulating pump, is communicated with the lower part of the surface of the liquid inlet pipe.

Advantageous effects

The utility model provides a device of low temperature condensation crystallization. Compared with the prior art, the method has the following beneficial effects:

(1) this device of low temperature condensation crystallization through including crystallizer and feed liquor pipe, the top fixedly connected with filter screen of crystallizer inner wall to the top intercommunication of crystallizer has the standpipe, the top intercommunication of standpipe has the compressor, and the surface of standpipe is provided with the regenerator, and rethread expander, intake pipe, air nozzle, hydrojet, row's material pipe and the cooperation setting of crystal settling tank for accelerated cooling rate under the condition of not polluting the crystalline solid improves cooling efficiency, thereby improves the product yield.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

fig. 2 is a schematic sectional view of the crystallizer structure of the present invention.

In the figure: 1-crystallizer, 2-liquid inlet pipe, 3-filter screen, 4-vertical pipe, 5-compressor, 6-heat regenerator, 7-cooler, 8-thin pipe, 9-nitrogen pipe, 10-expander, 11-air inlet pipe, 12-air nozzle, 13-liquid spray nozzle, 14-discharge pipe, 15-crystal settling tank, 16-crystal discharge pipe, 17-liquid outlet pipe, 18-circulating pump and 19-return pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a low-temperature condensation crystallization device comprises a crystallizer 1 and a liquid inlet pipe 2, wherein a filter screen 3 is fixedly connected to the top of the inner wall of the crystallizer 1, the top of the crystallizer 1 is communicated with a vertical pipe 4, the top end of the vertical pipe 4 is communicated with a compressor 5, the surface of the vertical pipe 4 is provided with a heat regenerator 6, one side of the compressor 5 is communicated with a cooler 7 through a connecting pipe, one side of the cooler 7 is communicated with a thin pipe 8, the top of the surface of the thin pipe 8 is communicated with a nitrogen pipe 9, the bottom end of the thin pipe 8 is communicated with an expander 10, the bottom of the expander 10 is communicated with an air inlet pipe 11, one end of the air inlet pipe 11 penetrates through the crystallizer 1 and extends into the crystallizer 1, the surface of the air inlet pipe 11 extending to one end inside the crystallizer 1 is communicated with an air nozzle 12, one end of the liquid inlet pipe 2 penetrates through the crystallizer 1 and extends into the crystallizer 1, the lower, the bottom of crystallizer 1 communicates with row material pipe 14 to the bottom of arranging material pipe 14 communicates with crystal subsider 15, the bottom of crystal subsider 15 communicates with crystal discharge pipe 16, one side at crystal subsider 15 top communicates with drain pipe 17, the one end of drain pipe 17 communicates with circulating pump 18, the top of circulating pump 18 communicates with back flow 19, and the one end that back flow 19 kept away from circulating pump 18 is linked together with the below on feed liquor pipe 2 surface.

And those not described in detail in this specification are well within the skill of those in the art.

The working principle is as follows: the method comprises the steps that a dissolving solution is sprayed into a cooling crystallization tank through an inlet pipeline of the cooling crystallization tank, the dissolving solution is in full contact with expanded low-temperature nitrogen from top to bottom in the tank for heat exchange and cooling, then flows to the bottom of the tank, dissolved crystals are separated out of the solution in the cooling process, the low-temperature nitrogen cooling solution is discharged from the top of the cooling crystallization tank, enters a compressor for pressurization after being reheated by a heat regenerator, the nitrogen is cooled by a cooler after being pressurized, then is further cooled by the heat regenerator, the temperature of the cooled nitrogen is reduced after being expanded by an expander, the low-temperature nitrogen enters the tank from the bottom of the cooling crystallization tank and is in full contact with the falling solution from bottom to top for heat exchange, the temperature of the solution is reduced, so that the dissolved crystals are separated out, the liquid at the bottom of the cooling crystallization tank carries the crystals to flow into a crystal settling tank.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 utility model provides a device of low temperature condensation crystallization, includes crystallizer (1) and feed liquor pipe (2), its characterized in that: the top fixedly connected with filter screen (3) of crystallizer (1) inner wall to the top intercommunication of crystallizer (1) has standpipe (4), the top intercommunication of standpipe (4) has compressor (5), and the surface of standpipe (4) is provided with regenerator (6), one side of compressor (5) is passed through the connecting pipe intercommunication and is had cooler (7), and one side intercommunication of cooler (7) has tubule (8), the top intercommunication on tubule (8) surface has nitrogen gas pipe (9), the bottom intercommunication of tubule (8) has expander (10), and the bottom intercommunication of expander (10) has intake pipe (11), the one end of intake pipe (11) runs through crystallizer (1) and extends to the inside of crystallizer (1), the surface intercommunication that intake pipe (11) extended to the inside one end of crystallizer (1) has air nozzle (12), one end of the liquid inlet pipe (2) penetrates through the crystallizer (1) and extends into the crystallizer (1), and a liquid spraying nozzle (13) is communicated below the liquid inlet pipe (2) extending to the inner surface of the crystallizer (1).

2. The apparatus of claim 1, wherein: the bottom of the crystallizer (1) is communicated with a discharge pipe (14), the bottom end of the discharge pipe (14) is communicated with a crystal settling tank (15), and the bottom of the crystal settling tank (15) is communicated with a crystal discharge pipe (16).

3. The apparatus of claim 2, wherein: one side at the top of the crystal settling tank (15) is communicated with a liquid outlet pipe (17), and one end of the liquid outlet pipe (17) is communicated with a circulating pump (18).

4. The apparatus of claim 3, wherein: the top of the circulating pump (18) is communicated with a return pipe (19), and one end of the return pipe (19) far away from the circulating pump (18) is communicated with the lower part of the surface of the liquid inlet pipe (2).