CN210906102U

CN210906102U - Device for spraying continuous reaction

Info

Publication number: CN210906102U
Application number: CN201921881171.4U
Authority: CN
Inventors: 刘新哲
Original assignee: Jinyi Chuangdian Tianjin Technology Co ltd
Current assignee: Jinyi Chuangdian Tianjin Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-03
Anticipated expiration: 2029-11-04

Abstract

The utility model provides a spraying continuous reactor installs the fluid spray gun on the reactor, utilizes the high-speed principle that flows of inert gas, makes liquid micronize, and the fluid through two strands of high-speed flows fiercely strikes in the twinkling of an eye, realizes the quick dissipation of energy to reduce the segregation degree between two strands of fluids rapidly, reach the purpose of flash mixing. When the collision reaction occurs, the inert gas can carry away most of heat, and the reaction is facilitated. The impinging fluid may be designed in a symmetrical configuration or in an asymmetrical configuration. The fluid inlet may be designed as a high pressure nozzle or as a two-fluid nozzle with gas delivery through which the two flows pass in the form of a spray. After atomization, they are mutually impacted and mixed in the reactor. Experimental studies find that the collision mixing of droplets with the diameter of about 200-300 μm is more beneficial to the uniform mixing of the liquid.

Description

Device for spraying continuous reaction

Technical Field

The utility model belongs to the technical field of the pharmaceutical industry, especially, relate to a device of spraying continuous reaction.

Background

The equipment for realizing liquid-liquid mixing by using a turbulent mixing mechanism in industrial production mainly comprises a stirring kettle mixer, a jet flow jet mixer, an impinging stream mixer, a static mixer, a dynamic mixer and the like, wherein the macro mixing time corresponding to the process of mixing fluid in a mechanical stirring mode is longer, the process is mainly controlled by macro mixing, about 85 percent of liquid-liquid mixing process in industrial production is finished in the stirring kettle, and the existing reaction equipment mostly adopts mechanical stirring and intermittent production modes, so that on one hand, the reaction is incomplete, the conversion rate is reduced, on the other hand, the labor intensity of operators is high, and the operation cost is high.

Disclosure of Invention

In view of the above, the present invention is directed to a device for spray continuous reaction, which solves the above mentioned problems in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an apparatus for spray continuous reaction comprising a reactor, and at least two-fluid spray guns disposed on the reactor for atomizing liquid delivered thereto into minute droplets, the at least two-fluid spray guns being disposed toward each other so that the minute droplets produced by the two-fluid spray guns collide with each other and are rapidly mixed to form a mixture.

Further, the at least two dual-fluid spray guns are arranged in pairs to form one or more pairs.

Further, each pair of two-fluid guns delivers a different solution and carrier gas into the reactor from at least one direction.

Furthermore, the double-fluid spray gun comprises a spray gun inner tube and a spray gun outer tube, the spray gun outer tube is sleeved at the spray gun inner tube, liquid reaches the spray head through a liquid inlet of the spray gun inner tube, gas reaches the spray head through a gas inlet of a gas path formed by the spray gun inner tube and the spray gun outer tube, the liquid and the gas are atomized at the spray head, a gas cap and a liquid cap are arranged at the spray head, the spray head is conical, and spray holes are formed in the conical spray head.

Further, a reducing agent injector is arranged below the reactor.

Further, a material conveying pump is arranged at a material outlet below the reactor and used for conveying the produced mixture to the next system.

Further, the top of the reactor is also provided with a radar liquid level meter, the bottom of the reactor is provided with a differential pressure type liquid level meter, and the radar liquid level meter and the differential pressure type liquid level meter are both connected with a PLC (programmable logic controller).

Furthermore, a jacket is also arranged on the outer wall of the reactor.

Furthermore, a recovery device is arranged above the reactor and used for recycling the carrier gas.

Further, the recovery device comprises a compressor, and the compressor conveys the carrier gas to the air inlet.

Compared with the prior art, the device for spraying continuous reaction has the following advantages:

1. the utility model can realize continuous feeding and continuous reaction;

2. the utility model has rapid collision reaction, short time, high conversion rate, less by-products and high product quality

3. The carrier gas of the utility model takes away most of heat and is suitable for heat-sensitive substances;

4. the utility model discloses a carrier gas recovery resource utilization, it is green not have to discharge.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic diagram of rapid collision of liquid droplets according to an embodiment of the present invention;

FIG. 2 is a schematic view of an apparatus for spray continuous reaction according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a dual-fluid spray gun according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a gas cap according to an embodiment of the present invention;

fig. 5 is a schematic view of a threaded connection structure of a gas cap and a liquid cap according to an embodiment of the present invention.

Description of reference numerals:

1-a first dual fluid spray gun; 2-a second dual fluid spray gun; 3-a reactor; 4-a material transfer pump; 5-inner tube of spray gun; 6-spray gun outer tube; 7-a connecting flange; 8-liquid cap; 9-a gas cap; 10-liquid inlet; 11-air inlet.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in figures 1-5, the utility model provides a spray continuous reactor installs fluid spray gun on the reactor, utilizes the high-speed principle of flowing of inert gas, makes liquid micronize, through the fierce striking in the twinkling of an eye of two strands of high-speed fluid that flow, realizes the quick dissipation of energy to reduce the segregation degree between two strands of fluids rapidly, reach the mesh of flash mixing. When the collision reaction occurs, the inert gas can carry away most of heat, and the reaction is facilitated. The impinging fluid may be designed in a symmetrical configuration or in an asymmetrical configuration. The fluid inlet may be designed as a high pressure nozzle or as a two-fluid nozzle with gas delivery through which the two flows pass in the form of a spray. After atomization, they are mutually impacted and mixed in the reactor. Experimental studies find that the collision mixing of droplets with the diameter of about 200-300 μm is more beneficial to the uniform mixing of the liquid.

Specifically, the reactor comprises a reactor 3 and at least two-fluid spray guns arranged on the reactor 3 and used for atomizing liquid conveyed into the two-fluid spray guns into tiny droplets, wherein the two-fluid spray guns are arranged towards each other, so that the tiny droplets generated by the two-fluid spray guns collide with each other and are rapidly mixed to form a mixture.

More specifically, the impinging stream reactor realizes rapid dissipation of energy by two streams of high-speed flowing fluid being instantaneously and violently impinged, thereby rapidly reducing the segregation degree between the two streams of fluid and achieving the purpose of rapid mixing. The impinging fluid may be designed in a symmetrical configuration or in an asymmetrical configuration. The fluid inlet may be designed as a high pressure nozzle or as a two-fluid nozzle with gas delivery through which the two flows pass in the form of a spray. After atomization, they are mutually impacted and mixed in the mixing chamber.

The at least two dual-fluid spray guns are arranged in pairs to form one or more pairs.

Each pair of two-fluid guns delivers a different solution and carrier gas into the reactor 3 from at least one direction. Wherein the carrier is inert gas.

As most of the fast reactions in the pharmaceutical industry belong to strong exothermic reactions, in order to ensure that the fast reactions are carried out within a proper temperature range, considering that the double-fluid spray gun generates proper droplet size to ensure the retention time of the droplets and avoid the upward movement of the droplets, partial reaction heat can be taken away by utilizing the inert gas circulation in the double-fluid spray device.

The double-fluid spray gun comprises a spray gun inner tube 5 and a spray gun outer tube 6, the spray gun outer tube 6 is sleeved at the spray gun inner tube 5, liquid reaches a spray head through a liquid inlet 10 of the spray gun inner tube 5, gas reaches the spray head through a gas inlet 11 of a gas path formed by the spray gun inner tube 5 and the spray gun outer tube 6, the liquid and the gas are atomized at the spray head, a gas cap 9 and a liquid cap 8 are arranged at the spray head, the spray head is conical, and a spray hole is formed in the conical spray head. The two-fluid spray gun can make the particle diameter of liquid drop below 10 μm by high speed flow of compressed air.

The liquid drop contacts the in-process that the collision mixes and reacts, and the liquid solid mixture of production can descend under the effect of gravity, because the viscidity effect of liquid solid mixture, partial solid particle can be attached to the reactor wall, consequently, still sets up the reductant sprayer in the below of reactor, dissolves the material on the reactor inner wall, avoids the solid wall sticking phenomenon in the reactor.

A material delivery pump 4 is provided at a material outlet below the reactor 3 for delivering the produced mixture to the next system. The solution and inert gas are metered by a flowmeter, sprayed into the reactor according to the required quality, and adapted to the operation load of the production line through the interlocking control of the liquid level and the delivery pump after reaction.

The top of the reactor 3 is also provided with a radar liquid level meter, the bottom of the reactor is provided with a differential pressure type liquid level meter, and the radar liquid level meter and the differential pressure type liquid level meter are both connected with a PLC controller. The accuracy of liquid level measurement is ensured by the two liquid level meters because the viscosity of the generated material is not easy to measure and the requirement of the middle part of the reactor on the radar liquid level meter is higher due to the spray area. The whole system is controlled by a PLC, the system realizes automatic operation, the operation is basically unattended, core data has a report function, the labor cost is reduced, and the labor intensity is reduced. It should be noted that the electronic components such as the level gauge and the PLC of the present invention are all existing products, and the connection relationship with the PLC is a common connection relationship for those skilled in the art.

The outer wall of the reactor 3 is also provided with a jacket, and partial reaction heat is taken away by utilizing the heat exchange of the jacket on the outer wall of the reactor.

And a recovery device is arranged above the reactor 3 and used for recycling the carrier gas. The recovery device 3 comprises a compressor which delivers the carrier gas to the inlet.

When the device is used, the material A solution and the material B solution respectively enter a first double-fluid spray gun 1 and a second double-fluid spray gun 2 together with inert gas, are atomized into small fog drops and then collide in a reactor 3 to rapidly react, and after the generated material is detected to be qualified, a reducing agent is introduced to dissolve viscous materials, and the materials are pumped out through a material conveying pump 4 to enter the next system; the atomized liquid drops have small particle size, the contact and reaction are carried out in the collision process, and the carrier gas (inert gas) used by the double-fluid spray gun can be recycled in consideration of large consumption and no influence of other impurities.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for spray continuous reaction, characterized in that: the two-fluid spray gun type mixing device comprises a reactor and at least two-fluid spray guns arranged on the reactor and used for atomizing liquid conveyed into the two-fluid spray guns into micro droplets, wherein the two-fluid spray guns are arranged towards each other so that the micro droplets generated by the two-fluid spray guns collide with each other and are rapidly mixed to form a mixture.

2. A device for spray continuous reaction according to claim 1, wherein: the at least two dual-fluid spray guns are arranged in pairs to form one or more pairs.

3. A spray continuous reaction apparatus according to claim 2, wherein: each pair of two-fluid guns delivers a different solution and carrier gas into the reactor from at least one direction.

4. A device for spray continuous reaction according to claim 3, wherein: the double-fluid spray gun comprises a spray gun inner pipe and a spray gun outer pipe, the spray gun outer pipe is sleeved at the spray gun inner pipe, liquid reaches the spray head through a liquid inlet of the spray gun inner pipe, gas reaches the spray head through a gas inlet of a gas path formed by the spray gun inner pipe and the spray gun outer pipe, the liquid and the gas are atomized at the spray head, a gas cap and a liquid cap are arranged at the spray head, the spray head is conical, and spray holes are formed in the conical spray head.

5. A device for spray continuous reaction according to claim 1, wherein: a reducing agent injector is also arranged below the reactor.

6. A device for spray continuous reaction according to claim 1, wherein: and a material conveying pump is arranged at a material outlet below the reactor and used for conveying the produced mixture to the next system.

7. A device for spray continuous reaction according to claim 1, wherein: the reactor top still is provided with the radar level gauge, and the bottom is equipped with the differential pressure type level gauge, and radar level gauge, differential pressure type level gauge all connect the PLC controller.

8. A device for spray continuous reaction according to claim 1, wherein: the outer wall of the reactor is also provided with a jacket.

9. A device for spray continuous reaction according to claim 4, characterized in that: and a recovery device is also arranged above the reactor and is used for recycling the carrier gas.

10. A spray continuous reaction apparatus according to claim 9, wherein: the recovery device includes a compressor that delivers the carrier gas to the air inlet.