CN218653060U

CN218653060U - Continuous crystallization device

Info

Publication number: CN218653060U
Application number: CN202222509675.1U
Authority: CN
Inventors: 马家驹; 俞洪明; 孔敏; 舒伟杰; 金玉宏
Original assignee: Zhejiang Titan Design & Engineering Co ltd
Current assignee: Zhejiang Titan Design & Engineering Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-03-21
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a crystallization device in succession, it forms to establish ties by multistage looks isostructure's crystallization cauldron unit, the crystallization cauldron unit includes the crystallization cauldron body, material import has been seted up on the crystallization cauldron body, material export, gaseous phase export and overflow mouth, through overflow mouth series connection between the crystallization cauldron unit of each grade, still be provided with the baffle of co-altitude in the crystallization cauldron unit, crystallization cauldron unit outside cover is equipped with and presss from both sides the cover, it is provided with the refrigerant and is connected with refrigerant water feeding passageway and refrigerant return water passageway to press from both sides the cover, the outside that presss from both sides the cover is provided with cold insulation layer, the material export of the crystallization cauldron unit of each grade and the overflow mouth of the crystallization cauldron unit of last one-level converge the back and access centrifuge and handle, still be provided with independent temperature control circuit on the crystallization cauldron unit of each grade. The utility model discloses the device has batch processing temperature, the energy consumption is low, the handling capacity is big, and the crystallization effect is good, be fit for the advantage of serialization production, is applicable to the application of industrialization.

Description

Continuous crystallization device

Technical Field

The utility model belongs to the technical field of chemical engineering equipment, concretely relates to serialization crystallization device.

Background

In the production process of raw material medicines, cooling crystallization is an important purification process, the traditional crystallization device is arranged by a single device at present, the crystallization method is basically an intermittent process, the intermittent crystallization has the defects of unstable batch content, complex operation, high energy consumption and the like, and the continuous crystallization device is developed for saving energy consumption, improving production efficiency and reducing production cost, and has important significance for improving product quality and efficiency.

SUMMERY OF THE UTILITY MODEL

To the above problem condition, the utility model provides a serialization crystallization device converts traditional intermittent type crystallization production process into serialization crystallization process to the engineering is used, solves among the prior art shortcomings such as batch content unstability, complex operation, energy consumption height.

In order to realize the purpose, the utility model discloses the technical scheme who takes does:

the utility model provides a serialization crystallization device, it forms to establish ties by the crystallization kettle unit that the multilevel structure is the same, the crystallization kettle unit includes the crystallization kettle body, material import has been seted up on the crystallization kettle body, the material export, gaseous phase export and overflow mouth, through overflow mouth series connection between the crystallization kettle unit of each grade, still be provided with the baffle of co-altitude in the crystallization kettle unit, crystallization kettle unit outside cover is equipped with and presss from both sides the cover, it is provided with the refrigerant and is connected with refrigerant water feeding channel and refrigerant return water passageway to press from both sides the cover, the outside that presss from both sides the cover is provided with cold insulation layer, accesss to centrifuge after the material export of the crystallization kettle unit of each grade and the overflow mouth of the crystallization kettle unit of last grade join and handles, still be provided with independent temperature control loop on the crystallization kettle unit of each grade.

Furthermore, the temperature control loop comprises a concentrated thermometer arranged on the crystallization kettle body and a refrigerant regulating valve arranged on the refrigerant return water channel, and linkage regulation is performed between the concentrated thermometer and the refrigerant regulating valve to regulate the temperature in the crystallization kettle body.

Furthermore, the device is provided with a PLC control system for controlling the feeding, discharging, stirring and temperature regulation of the whole device.

Further, still set up agitating unit on the crystallization kettle unit of each grade, agitating unit includes agitator motor and the stirring rake that links to each other with agitator motor.

Furthermore, this internal overflow mouth and the baffle of being equipped with of crystallization kettle, the material is behind the baffle, and the overflow is to next stage crystallization kettle unit.

Further, the gas phase outlets of the crystallization kettle units of each stage are converged and then connected to a tail gas treatment device.

Furthermore, a sight glass is arranged on the material inlet and used for observing the state of the material entering.

Furthermore, a material inlet of the first-stage crystallization kettle unit is connected with a feed pump to receive materials from the feed pump, and the rest crystallization kettle units receive materials from an overflow port of the upper-stage crystallization kettle unit.

This device is equipped with multistage crystallization kettle unit, can set up the quantity of crystallization kettle unit according to the in-service use demand during the use.

The utility model discloses technical scheme compares with prior art, has following beneficial effect:

(1) The crystallization process of the utility model is provided with a multi-stage crystallization kettle, which can improve the crystallization effect;

(2) The crystallization kettle of the utility model is provided with an overflow port, and materials are transferred through the position difference, so that the retention time of the crystallization kettle is increased;

(3) The crystallization kettle of the utility model is provided with an independent temperature control loop, so that the crystallization material can be cooled and crystallized according to a certain temperature gradient, and the cooling rate is more uniform;

(4) The crystallization kettle of the utility model is provided with the stirring paddle, which can evenly distribute the materials and enhance the heat transfer effect;

(5) The utility model has the advantages that the baffles and overflow ports with different heights are arranged in the crystallization kettle, so that the preliminary separation of supernatant and turbid liquid can be realized, the turbid liquid enters the next-stage crystallization kettle, and the supernatant is pre-separated to a clear liquid tank, so that the subsequent centrifugal operation load can be reduced;

in conclusion, the utility model adopts a multi-stage continuous crystallization method, and each stage of crystallization kettle unit is provided with independent temperature control, thus being applicable to the crystallization requirement of complex working conditions; meanwhile, the materials are primarily separated through baffles with different heights arranged in the crystallization kettle, so that the load of subsequent centrifugal operation is greatly reduced; the number of the cascade crystallization kettle units can be set according to actual needs, and the crystallization separation efficiency can be improved. The utility model has the advantages of batch processing temperature, low energy consumption, large processing capacity, good crystallization effect and suitability for continuous production, and is suitable for industrial application.

Drawings

FIG. 1 is a schematic structural view of a crystallization kettle unit of the present invention;

FIG. 2 is a schematic structural view of a continuous crystallization apparatus according to the present invention;

in the figure: 1. a crystallization kettle body; 2. an overflow port; 3. a jacket; 4. a cold insulation layer; 5. a refrigerant water feeding channel; 6. a material outlet; 7. a refrigerant backwater channel; 8. a refrigerant regulating valve; 9. a gas phase outlet; 10. a stirring motor; 11. a centralized thermometer; 12. a material inlet; 13. a sight glass; 14. and (4) a stirring paddle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, a continuous crystallization device is formed by serially connecting crystallization kettle units with the same multi-stage structure, which is 5 stages in this embodiment, each crystallization kettle unit includes a crystallization kettle body 1, a material inlet 12, a material outlet 6, a gas phase outlet 9 and an overflow port 2 are provided on the crystallization kettle body 1, each crystallization kettle unit of each stage is serially connected through the overflow port 2, baffles with different heights are further provided in the crystallization kettle units, a jacket 3 is sleeved outside the crystallization kettle units, a refrigerant is provided in the jacket 3 and connected with a refrigerant water feeding channel 5 and a refrigerant water returning channel 7, a cold insulation layer 4 is provided outside the jacket 3, the material outlet 6 of each crystallization kettle unit of each stage and the overflow port 2 of the last crystallization kettle unit of each stage are converged and then led to a centrifuge for processing, an independent temperature control loop is further provided on each crystallization kettle unit of each stage, so that the crystallization material can be cooled according to a certain temperature gradient, and the cooling rate is more uniform.

The temperature control loop comprises a concentrated thermometer 11 arranged on the crystallization kettle body 1 and a refrigerant regulating valve 8 arranged on the refrigerant return water channel 7, and a linkage adjusting effect is generated between the concentrated thermometer 11 and the refrigerant regulating valve 8 to adjust the temperature in the crystallization kettle body 1. The utility model sets the temperature in each stage of crystallization kettle unit to form a certain temperature gradient for cooling crystallization,

The utility model discloses the device is provided with PLC control system, controls feeding, ejection of compact, stirring and temperature regulation to whole device.

This device contains a plurality of crystallization kettle units, can set up the quantity of crystallization kettle unit according to the in-service use demand during the use, and wherein first order crystallization kettle unit receives the material that comes from the charge pump through crystallization kettle top mouth of pipe, and all the other crystallization kettle units receive the material that comes from last order crystallization kettle unit overflow mouth 2. The crystallization kettle body 1 is externally provided with a jacket 3, a coolant is arranged in the jacket 3, and the temperature in the crystallization kettle is controlled by a centralized thermometer 11 on the crystallization kettle and a coolant adjusting valve 8. An overflow port 2 and a baffle are arranged in the crystallization kettle, and the material overflows to the next-stage crystallization kettle after passing through the baffle.

A plurality of crystallization kettle units are arranged for establishing ties, are equipped with the overflow mouth on the crystallization kettle body, and the material flows to next-level crystallization kettle unit through the mode of overflow. Still set up agitating unit on the crystallization kettle unit of every grade, agitating unit includes agitator motor 10 and the stirring rake 14 that links to each other with agitator motor 10, ensures that there is good heat transfer and mixing condition in the system. And a cold insulation layer 4 is arranged outside the crystallization kettle, so that the energy loss of a refrigerant medium can be effectively reduced.

A sight glass 13 is also arranged on the material inlet 12 for observing the state of the material entering. And gas phase outlets 9 of the crystallization kettle units of each stage are converged and then connected to a tail gas treatment device.

After entering a first-stage crystallization kettle from a feed pump, the material enters a next-stage crystallization kettle through an overflow port, wherein each stage of crystallization kettle is provided with independent temperature control to ensure that a certain temperature gradient is formed in the crystallization process; simultaneously, through each grade crystallization kettle be equipped with not co-altitude baffle and overflow mouth, make supernatant and turbid liquid can the initial gross separation, improved the yield.

The utility model discloses a serialization crystallization device specifically is at the during operation, and the material passes through inside the material import 12 entering crystallization kettle body 1 at 1 top of crystallization kettle body, observes the state when the material enters into through 13 sight glasses simultaneously. The crystallization kettle body 1 controls the temperature in the crystallization kettle body 1 through the interlocking action of the concentrated thermometer 11 and the refrigerant regulating valve 8 on the refrigerant return water channel 7, so that part of materials can be crystallized. Under the condition that crystallizer body 1 lasts the feeding, the liquid level risees in the crystallizer body 1, submerges the scraper blade in the crystallizer body 1 after, flows to next stage crystallization cauldron unit through overflow mouth 2 and carries out the crystallization operation. When the material passes through the scraper blade, can realize the initial separation of clear liquid and turbid liquid, the clear liquid enters next-level crystallization kettle unit and continues the crystallization, delivers to centrifuge centrifugation recovery finished product after turbid liquid is collected.

The utility model adopts a multi-stage crystallization method, and each stage of crystallization kettle is provided with independent temperature control, thus being applicable to the crystallization requirement of complex working conditions; meanwhile, the materials are primarily separated through baffles with different heights arranged in the crystallization kettle, so that the load of subsequent centrifugal operation is greatly reduced; the number of the cascade crystallization kettle units can be set according to actual needs, the crystallization separation efficiency can be improved, and the method is extremely suitable for industrial application.

The utility model has the advantages of batch processing temperature, low energy consumption, large processing capacity, good crystallization effect and suitability for continuous production, and is suitable for industrial application.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a serialization crystallization device, a serial communication port, it is formed by the crystallization cauldron unit of multistage looks isostructure establishes ties, the crystallization cauldron unit includes crystallization cauldron body (1), material import (12) have been seted up in the last (1) of crystallization cauldron body, material export (6), gaseous phase export (9) and overflow mouth (2), through overflow mouth (2) series connection between the crystallization cauldron unit of each level, still be provided with the baffle of co-altitude in the crystallization cauldron unit, crystallization cauldron unit outside cover is equipped with and presss from both sides cover (3), it is provided with the refrigerant and is connected with refrigerant water feeding passageway (5) and refrigerant return water passageway (7) to press from both sides the cover (3) the outside and be provided with cold-retaining layer (4), material export (6) of the crystallization cauldron unit of each level and overflow mouth (2) of the crystallization cauldron unit of last level converge the back access to centrifuge and handle, still be provided with independent temperature control return circuit on the crystallization cauldron unit of each level.

2. The continuous crystallization device as claimed in claim 1, wherein the temperature control loop comprises a centralized thermometer (11) disposed on the crystallization kettle body (1) and a refrigerant regulating valve (8) disposed on the refrigerant return channel (7), and the centralized thermometer (11) and the refrigerant regulating valve (8) generate a linkage adjusting effect to adjust the temperature in the crystallization kettle body (1).

3. The continuous crystallization device as claimed in claim 1, wherein the device is provided with a PLC control system for controlling the feeding, discharging, stirring and temperature regulation of the whole device.

4. The continuous crystallization device according to claim 1, wherein a stirring device is further disposed on each crystallization kettle unit, and the stirring device comprises a stirring motor (10) and a stirring paddle (14) connected to the stirring motor (10).

5. The continuous crystallization device according to claim 1, wherein the crystallization kettle body (1) is provided with an overflow port (2) and a baffle, and the material overflows to the next stage of crystallization kettle unit after passing through the baffle.

6. A continuous crystallization apparatus as claimed in claim 1, wherein the gas phase outlets (9) of the crystallization kettle units of each stage are connected to a tail gas treatment device after being merged.

7. A continuous crystallization apparatus as claimed in claim 1, wherein a sight glass (13) is further provided at the material inlet (12) for observing the state of the material entering.

8. A continuous crystallisation apparatus as claimed in claim 1, wherein the material inlet (12) of the first crystalliser unit is connected to a feed pump to receive material from the feed pump and the remaining crystalliser units receive material from the overflow (2) of the previous crystalliser unit.