CN110508231B - Continuous production system of azo reactive dyes using hypergravity - Google Patents

Abstract

The invention provides a continuous production system for azo reactive dyes using supergravity, combines a spiral coil reactor with a supergravity technology, and treats the diazotization reaction and the coupling reaction separately. The diazotization reaction is carried out in the spiral coil reactor. For the coupling reaction, the supergravity reactor can greatly improve the conversion rate and the quality of the product. The spiral coil reactor can precisely control the temperature to avoid the decomposition of the diazonium salt. In this way, due to the precise temperature control, the decomposition of the diazonium salt is very small, which will not affect the subsequent coupling reaction, so it can ensure continuous production. The concentration of the diazonium salt is maintained in a high range, so as to ensure that the properties of the azo reactive dyes in the same batch are close to or the same, and meet the actual needs of the industry. Further, a disturbance member is arranged in the spiral coil tube, which can disturb the reaction solution in the spiral coil tube reactor, accelerate the flow and mixing of the reaction solution, and facilitate the homogenization reaction.

Description

Continuous production system of azo reactive dyes using hypergravity

technical field

The invention relates to the technical field of preparation of azo reactive dyes. More specifically, it relates to a continuous production system of azo reactive dyes using supergravity.

Background technique

Industrially, the production of reactive azo dyes is carried out in batch operation in stirred tank reactors. Due to the complexity of the organic reaction and the large volume of the stirred tank reactor, the temperature and mixing effect of the materials are difficult to achieve uniformity in local areas, the production efficiency of dyes is low, and the batches of dyes produced in intermittent stirred tanks are quite different. , which brings inconvenience to the post-processing of the dye and the application of the dye.

Therefore, there is an urgent need to provide a continuous production system for azo reactive dyes using supergravity.

SUMMARY OF THE INVENTION

In view of this, in order to solve the current lack of an effective continuous production system for azo reactive dyes, the present invention provides a continuous production system for azo reactive dyes using supergravity.

In certain embodiments, a continuous production system of azo reactive dyes using supergravity, the system comprises:

a condensation reaction unit comprising a condensation reaction tank for generating coupling components;

A diazotization reaction unit, the diazotization reaction unit includes:

A premix kit for premixing the diazo component and diazo reagent, and

a helical coil reactor, communicated with the premixing component, so that the premixed reaction solution is subjected to diazotization reaction in the helical coil reactor to generate diazonium salt;

The system further includes:

The hypergravity coupling reaction unit communicated with the diazotization reaction unit and the condensation reaction unit, and the hypergravity coupling reaction unit is used to carry out the coupling reaction of the diazonium salt and the coupling component under the hypergravity environment to produce the said azo reactive dyes;

Wherein, a disturbance member with a fixed structure is arranged in the inner cavity of the helical coil reactor where the diazotization reaction occurs, and the disturbance member is used to disturb the reaction solution in the helical coil reactor.

In some embodiments, the perturbation member includes a fixing part fixed on the inner cavity surface of the helical coil reactor, and is fixed in combination with an end of the fixing part away from the inner cavity surface of the helical coil reactor The free part includes two free parts, and the two free parts and the fixed part form a "Y"-shaped structure or a "T"-shaped structure.

In some embodiments, the perturbation member is arranged perpendicular to the inner cavity surface of the helical coil reactor, or is arranged obliquely.

In some embodiments, the disturbing member includes a first portion with a diameter reduced along the liquid feeding direction, and a second portion communicating with an end of the first portion with a smaller inner diameter, the second portion extending along the liquid feeding direction The diameter-expanding structure is provided, and the first part and the second part are symmetrically arranged with their connecting surfaces as the symmetry plane.

In certain embodiments, the system further includes:

An ultrasonic feeder is used to feed ultrasonic waves to the helical coil reactor and the supergravity coupling reaction unit respectively, wherein the intensity of the ultrasonic waves fed into the helical coil reactor and the supergravity coupling reaction unit same or different.

In certain embodiments, the premix assembly includes a first infusion tube and a second infusion tube;

The first infusion tube is sleeved on the outside of the second infusion tube, and there is a gap between the first infusion tube and the second infusion tube for one of the diazonium components and the diazonium reagent to circulate , the cavity in the second infusion tube is for circulation of the other of the diazo component and the diazo reagent;

The first infusion pipe is close to one end of the helical coil reactor to form a premixed area for mixing the diazo component and the diazonium reagent, and the second infusion pipe extends to the inlet of the premixed area, and The other of the diazo component and the diazo reagent is sprayed into the premix zone.

In certain embodiments, the premixing zone includes a reduced diameter portion adjacent to its inlet and a straight portion in integral communication with the reduced diameter portion.

In certain embodiments, the hypergravity coupling reaction unit comprises:

a hypergravity reactor, communicated with the helical coil reactor;

a stirred tank reactor in series with the hypergravity reactor, and

The pump used to pump the diazonium salt after the diazo reaction into the supergravity rotating packed bed reactor and the pump of the discharge port of the stirred tank reactor to circulate back to the supergravity reactor.

In certain embodiments, the system further includes a heat exchange unit for controlling the temperature in the reaction chamber of the helical coil reactor and the temperature in the reaction chamber of the hypergravity coupling reaction unit.

In some embodiments, the heat exchange unit includes:

a pipe jacket sleeved on the outside of the pipe of the spiral coil reactor, the pipe jacket has a cavity through which liquid can be passed;

an outer shell jacket sleeved on the outer side of the outer shell of the hypergravity reactor forming the reaction cavity, the outer shell jacket has a cavity through which liquid can be passed; and

A heat exchange device for heating or cooling the liquid passing into the pipe jacket and the shell jacket.

The beneficial effects of the present invention are as follows:

The invention provides a continuous production system for azo reactive dyes using supergravity, combines a spiral coil reactor with a supergravity technology, and treats the diazotization reaction and the coupling reaction separately. The diazotization reaction is carried out in the spiral coil reactor. The supergravity reactor used for the coupling reaction can greatly improve the conversion rate and the quality of the product. The spiral coil reactor can precisely control the temperature to avoid the decomposition of the diazonium salt. In this way, due to the precise temperature control, the decomposition of the diazonium salt is very small, which will not affect the subsequent coupling reaction, so it can ensure continuous production. The concentration of the diazonium salt is maintained in a high range, so as to ensure that the properties of the azo reactive dyes in the same batch are close to or the same, and meet the actual needs of the industry. Further, a disturbance member is arranged in the spiral coil tube, which can disturb the reaction solution in the spiral coil tube reactor, accelerate the flow and mixing of the reaction solution, and facilitate the homogenization reaction.

Description of drawings

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

FIG. 1 shows a schematic structural diagram of a continuous production system for azo reactive dyes using hypergravity in an embodiment of the present invention.

FIG. 2 shows a schematic structural diagram of a premix component in an embodiment of the present invention.

Fig. 3a shows one of the structural schematic diagrams of the disturbance member in the inner cavity of the helical coil according to the embodiment of the present invention.

Fig. 3b shows the second schematic diagram of the structure of the disturbance member in the inner cavity of the helical coil according to the embodiment of the present invention.

Fig. 3c shows the third schematic diagram of the structure of the disturbance member in the inner cavity of the spiral coil according to the embodiment of the present invention.

Fig. 3d shows the fourth schematic diagram of the structure of the disturbance member in the inner cavity of the spiral coil according to the embodiment of the present invention.

Detailed ways

In order to illustrate the present invention more clearly, the present invention will be further described below with reference to the preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

In view of this, the present invention first provides a continuous production system of azo reactive dyes using supergravity, the system includes: a condensation reaction unit, the condensation reaction unit includes a condensation reaction tank for generating coupling components; A diazotization reaction unit, the diazotization reaction unit includes: a premixing component, which premixes the diazonium components and the diazonium reagent, and a spiral coil reactor, which is communicated with the premixing component to make the premixing The latter reaction solution is subjected to diazotization reaction in the spiral coil reactor to generate diazonium salt; the system further comprises: a hypergravity coupling reaction communicated with the diazotization reaction unit and the condensation reaction unit unit, the hypergravity coupling reaction unit is used to make the diazonium salt and the coupling component carry out the coupling reaction in the hypergravity environment to produce the azo reactive dye; wherein, the helical coil reactor undergoes the diazotization reaction. A perturbation member with a fixed structure is arranged in the inner cavity, and the perturbation member is used to perturb the reaction solution in the helical coil reactor.

The continuous production system for the above-mentioned azo reactive dyes provided by the present invention firstly adopts a spiral coil reactor to be applied to the diazotization reaction. Since the reaction chamber of the spiral coil reactor is in the shape of a spiral coil, when temperature control is required , the heating medium or cooling medium can be passed into the jacket set on the outer wall of the coil. The heat is directly conducted or removed from the reaction system through the metal tube wall within a short period of time, and the tube diameter is small, and the heat conduction of the reaction solution in the tube body is uniform, so as to achieve the purpose of precise temperature control, and can accurately control the rise and fall of the system temperature and greatly reduce the weight. Decomposition of nitrogen salts.

In addition, the present invention further combines the spiral coil reactor with the supergravity technology, and treats the diazotization reaction and the coupling reaction differently. The diazotization reaction is carried out in the spiral coil reactor, and the supergravity reactor can be used for the coupling reaction. Maximize conversion rates and product quality. The spiral coil reactor can precisely control the temperature to avoid the decomposition of the diazonium salt. The combination of the two, due to the precise temperature control, the decomposition of the diazonium salt is very little, and will not affect the subsequent coupling reaction, so it can ensure continuous production. At the same time, the concentration of diazonium salt is maintained in a high range, so that the performance of the same batch of azo reactive dyes can be guaranteed to be close to or the same, and it can meet the actual needs of the industry.

Thirdly, the mixing of the reaction solution in the coil is improved by setting the perturbation element, the reaction speed is accelerated, and the uniform reaction is facilitated.

In some embodiments, the supergravity reactor can use a supergravity rotating device such as a rotating packed bed, a fixed rotor, a baffled flow, a spiral channel, a rotating disc type, etc., wherein the rotating packed bed includes a shell, a rotating chamber, and a rotating The chamber is driven to rotate by a motor, and a filler is arranged in the rotation chamber, and the filler is used to cut the liquid into micro-elements (droplets or) of micro-nano scale, such as wire mesh filler, etc., which is not limited in the present invention. The difference between the stator-rotor and the rotating packed bed is that the liquid is cut into micro-elements (droplets or liquid films) at the micro-nano scale by cutting between the fixed stator column and the rotating rotor.

Further, in a preferred embodiment, the system further comprises: an ultrasonic feeder for feeding ultrasonic waves to the helical coil reactor and the hypergravity coupling reaction unit, respectively, wherein the helical coil is fed The ultrasonic intensity fed into the tube reactor and the hypergravity coupling reaction unit is the same or different.

Due to the perturbation element, the reaction liquid forms a turbulent environment in the coil. At the same time, combined with ultrasound, it can cooperate with the macro-mixing of the turbulent environment, and further realize micro-mixing through molecular vibration, and then the macro- and micro-mixing is carried out at the same time to further achieve mass transfer. The effect of mixing, at the same time, due to the small diameter of the coil tube, for the reaction solution or slurry with high viscosity, the setting of the perturbation element may easily lead to partial blockage. With the help of ultrasound, the molecules can vibrate, so that the molecules will not be fixed. Stay in place, significantly reduce the clogging phenomenon, and speed up the flow of the reaction solution or slurry.

In a specific embodiment, as shown in FIG. 1, FIG. 1 shows a continuous production system, the continuous production system includes: a diazo component mixing tank 1, a diazo reagent raw material tank 2, a pump 3, a pump 4 , Premixing component 5 , spiral coil reactor 7 , coupling component raw material tank 9 , supergravity reactor 11 , collection container 14 . Wherein, the diazo component mixing tank 1 is communicated with the premix component 5 through the pump 3 , so that the diazo component is passed into the premix component 5 . The diazo reagent raw material tank 2 is communicated with the pre-mixing component 5 through the pump 4, so that the diazo reagent is passed into the pre-mixing component 5, and in the pre-mixing component 5, the diazo component and the diazo reagent are mixed. The premixing assembly 5 is communicated with the spiral coil reactor 7, and the mixed diazo components and the diazo reagent are passed into the spiral coil reactor 7 for reaction, and then enter the hypergravity reactor 11 after the diazo reaction. In the coupling reaction, the product after the coupling reaction enters the collection container 14 .

Included in this example is a hypergravity reactor 11 that can be used for continuous production of diazotization-coupling reactions. For example, the red reactive azo dye reactive red M-3BE.

In some embodiments, as shown in FIGS. 3 a to 3 d , the disturbance member includes a fixing portion fixed on the inner surface of the helical coil reactor, and reacts with the fixing portion away from the helical coil. One end of the surface of the inner cavity of the device is combined with a fixed free portion, the free portion includes two, and the two free portions and the fixed portion form a "Y"-shaped structure or a "T"-shaped structure.

Further, it can be seen from Fig. 3a to Fig. 3d that the disturbance member is arranged perpendicular to the inner cavity surface of the helical coil reactor, or is arranged obliquely.

Specifically, with reference to the above figures, the disturbing member includes a first part with a reduced diameter along the liquid feeding direction, and a second part communicating with the end of the first part with a smaller inner diameter, the second part being along the liquid feeding direction It has an expanded diameter structure, and the first part and the second part are symmetrically arranged with their connecting surfaces as the symmetry plane.

In some embodiments, the above system further includes a heat exchange unit, which can heat or cool the tube body of the spiral coil reactor, for example, the outer wall of the tube of the spiral coil reactor is sleeved with a heat exchange jacket (Fig. not shown). Due to the small diameter of the tube body, the heat exchange jacket can quickly and uniformly diffuse heat or cold energy into the cavity in the entire tube body.

In some embodiments, the helical coils in the helical coil reactor are made of polyurethane. This prevents corrosion while having less effect on heat transfer.

Of course, as a different embodiment from this embodiment, the inner surface of the spiral coil in the spiral coil reactor is lined with a polyurethane material layer.

Also, in order to avoid the influence of corrosion, the above-mentioned pump is a PTFE advection pump.

In some preferred embodiments, the heat exchange unit comprises a pipe jacket sleeved on the outside of the pipes of the helical coil reactor, the pipe jacket has a cavity through which liquid can be passed; and used for heating Or the cooling medium is passed into the heat exchange device of the liquid in the pipe jacket. That is, the liquid is used to heat or cool the body of the helical coil reactor to achieve precise temperature control.

In addition, the heating or cooling medium in the pipe jacket can be water, alcohol, salt solution, or oil, which is not limited in the present invention.

In the above embodiment, the specific structure of the premix component is shown in FIG. 2 , the premix component includes a first infusion tube 51 (outer layer infusion tube) and a second infusion tube 52 (inner layer infusion tube); the The first infusion tube 51 is sleeved on the outer side of the second infusion tube 52, and there is a gap between the first infusion tube 51 and the second infusion tube 52 for the diazo component and the diazo reagent. One circulation, the cavity in the second infusion pipe 52 is for the circulation of the other of the diazo component and the diazo reagent; the first infusion pipe 51 is close to one end of the helical coil reactor to form a supply for diazonium The premixing zone 53 where the components and the diazo reagent are mixed, the second infusion pipe 52 extends to the inlet of the premixing zone 53, and the diazonium components and the diazonium are sprayed to the premixing zone 53 the other of the reagents. During specific implementation, the diazo component is circulated in the gap between the first infusion tube 51 and the second infusion tube 52, and the diazo reagent is circulated in the second infusion tube 52. Of course, in other embodiments, and vice versa, the present invention There is no restriction on this.

It should be noted that the feeding of the first infusion tube 51 is vertical feeding, and a feeding port is formed on the outer wall of the tube, thereby avoiding the first infusion tube 51 and the second infusion tube 52 from the same position (the left position in the figure). ) feeding causes the problem of inability to feed.

Further, in order to enable the solution flowing out through the premixing component to have a faster speed, the premixing zone includes a diameter reduction part adjacent to the inlet thereof and a straight part integrally communicated with the diameter reduction part. In this way, the outlet diameter of the liquid becomes smaller when the material is discharged, and the speed of the outflow of the solution can be accelerated.

In some preferred embodiments, there is no gap between the heat exchange jacket and the outer wall of the tube of the helical coil reactor, so as to avoid the influence of air with low heat transfer rate on heat transfer.

The diazotization reaction occurs in the spiral coil reactor to generate diazonium salts. Since the spiral coil reactor can precisely control the temperature, the decomposition of the diazonium salts can be avoided, so that in the continuous production of the same batch, the diazonium salts are The subsequent feed concentration remains stable, so that the product quality is stable, and the product performance of the same batch varies little.

In some embodiments, the hypergravity reactor may be a hypergravity rotating bed reactor or a stator-rotor reactor. Those skilled in the art will understand that the present invention does not limit the specific type of the hypergravity reactor, and can be arbitrarily set as required. One of all hypergravity reactors in the prior art.

It should be noted that in this embodiment, the liquid distributor of the supergravity reactor is the two feeds shown in the figure, which are sprayed separately, but in other embodiments, a premixing zone can also be set at the injection port of the liquid distributor, Furthermore, before spraying, the diazonium salt solution and the coupling component respectively enter the hypergravity reactor through the first liquid inlet and the second liquid inlet to be premixed in the premixing zone of the liquid distributor, and then sprayed into the reaction inner cavity, The present invention does not further limit this.

It should be noted that the coupling reaction also needs to ensure a certain temperature, but compared with the diazotization reaction, the coupling reaction does not require high temperature control. Spiral coil reactors are more advantageous.

In addition, since the coupling reaction needs to ensure a certain temperature, the outer shell of the hypergravity reactor can be heated or cooled by the above-mentioned heat exchange unit, so as to realize the temperature control.

In some specific embodiments, the heat exchange unit further comprises a shell jacket sleeved on the hypergravity reactor to form a reaction cavity, and the shell jacket has a cavity through which a liquid can be passed. Further, the heat exchange device can simultaneously heat or cool the liquid in the pipe jacket and the shell jacket. Further, the pipe jacket is communicated with the shell jacket, and the heat exchange medium can flow into the shell jacket from the pipe jacket, which is not limited.

In some specific embodiments, the diazonium component includes 2-naphthylamine-1,5 disulfonic acid, the diazotization reagent includes nitrite and hydrochloric acid, and the coupling component includes H acid, para-position The condensate obtained by condensing ester and cyanuric chloride twice, so the azo reactive dye produced by the above system of the present invention is a red reactive azo dye reactive red M-3BE.

Of course, the continuous production system of the present invention is not limited to the above two specific embodiments. It should be known that the system can be applied to any azo reactive dyes that carry out diazotization reaction and coupling reaction, and the present invention will not be exhaustive here. .

The continuous generation system provided by the present invention will be described in detail below with reference to two specific examples.

Continuous Generation of Red Reactive Azo Dye Reactive Red M-3BE

In this embodiment, the diazonium component includes 2-naphthylamine-1,5 disulfonic acid, the diazonium reagent includes hydrochloric acid and sodium nitrite, and the coupling component includes H acid, para-ester and The condensate obtained by two condensations of cyanuric chloride.

The diazotization reaction process is as follows: the mixed solution of 2-naphthylamine-1,5 disulfonic acid and nitrite and the hydrochloric acid solution are premixed through the premixing component, as shown in Figure 2, and then continuously fed into the screw through the pipeline. In the coiled tube reactor, it is recirculated at the outlet and pumped back to the inlet of the spiral tube to obtain a diazonium salt suspension. The diazotization reaction is carried out at -10°C to +40°C, preferably 0°C to 12°C. The mol ratio of the hydrogen ion of diazotization reaction hydrochloric acid and 2-naphthylamine-1,5 disulfonic acid is 2.5～4:1, preferably 3:1, and the mol ratio of sodium nitrite and para-ester is 1～2: 1, preferably 1.01-1.1:1, the feed flow rate is 0.08-0.8m/s, preferably 0.25-0.7m/s.

The condensation reaction process is as follows: the cyanuric chloride and H acid are introduced into the stirred tank through a constant flow pump to carry out a condensation reaction at a temperature of 0-5 ° C and a pH of 2.5 to 3.5. After the reaction is completed, the para-ester and The primary condensation solution is subjected to secondary condensation at a temperature of 30-35° C. and a pH of 3 to 4 to obtain a secondary condensation solution, that is, a coupling raw material solution.

The coupling reaction process is as follows: the diazonium salt and the coupling components are respectively continuously fed into the supergravity rotating bed reactor, and the azo compound is generated through the mixing reaction, and the reaction temperature is 0°C to 45°C, preferably 8°C to 15°C; Preferably pH=6～8.5; the rotation speed of the supergravity reactor is 1200～3200rpm, preferably 1600～1900rpm.

The performance of the red reactive azo dye reactive red M-3BE produced by the continuous production method of the present invention is described below by taking some specific experimental parameters as examples.

(a) Preparation of 2-naphthylamine-1,5 disulfonic acid diazonium salt (spiral coil reactor)

Weigh 6.40g of 2-naphthylamine-1,5 disulfonic acid, add 90ml of water, add ₁₀ % _Na2CO3 solution and stir, dissolve at room temperature to pH=6～6.5, then add 1.1178g NaNO2 and stir to dissolve, which is called 2-naphthylamine The amount of -1,5 disulfonic acid and sodium nitrite mixed solution is about 105ml.

The mixed solution of 2-naphthylamine-1,5 disulfonic acid and sodium nitrite and 45 ml of hydrochloric acid with a concentration of 1 mol/L were pumped into the premixed component of the spiral coil reactor through a peristaltic pump. The temperature was controlled at 8°C by a thermostat jacket. A pale yellow suspension of 2-naphthylamine-1,5 disulfonic acid diazonium salt was obtained.

(b) Preparation of coupling components (stirred tank reactor)

Weigh 4.45g of para-ester powder, add 30ml of water, add 10% Na ₂ CO ₃ solution and stir, dissolve at room temperature to pH=6～6.5, then filter it with suction to obtain para-ester sodium salt solution; weigh 5.63g H acid powder, add 30 ml of water, then add 10% Na ₂ CO ₃ solution and stir, dissolve at room temperature to pH=6～6.5 to obtain H acid disodium salt solution; weigh 2.83 g of cyanuric chloride powder and pour it directly into the stirring tank In the reactor, add 72ml of ice-water mixed solution, beating cyanuric chloride at 0～5℃, and then pass H acid into the stirred tank through a constant flow pump to carry out a condensation reaction, after the reaction is over, pass the constant flow Pump the para-ester solution into the stirring tank again, and carry out secondary condensation at 30-35°C to obtain secondary condensation liquid, that is, coupling raw material liquid.

(c) Coupling reaction (hypergravity reactor)

The secondary condensation solution obtained above is connected with one of the inlets of the coupling reaction rotating bed, the outlet of the spiral coil reactor is connected with the other inlet of the supergravity rotating bed, and two feeds are divided into the supergravity rotating bed to react, and then enter The stirred tank reactor is recycled back to the supergravity reactor, the temperature is controlled by a constant temperature tank jacket at about 10°C, and the rotating bed speed is 1700rpm to obtain a red coupling product.

The feed liquid is salted out, dried, refined, and dried again to obtain reactive red M-3BE dye with a yield as high as 96% and a sample purity as high as 92%.

Obviously, the products in this experimental scenario can achieve high yield and high purity samples, and the product performance of the same batch is almost the same. Of course, although the present invention uses the red reactive azo dye reactive red M-3BE as the continuous production It is an example, but it does not mean that the present invention can only be used for the above-mentioned examples. From the perspective of the inventive concept of the present invention, the types of azo reactive dyes are not directly related to the main concept of the present invention. It should be understood that the inventive concept proposed by those skilled in the art in combination with the present invention can be applied to any azo reactive dyes, and the present invention is not exhaustive here.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Changes or changes in other different forms cannot be exhausted here, and all obvious changes or changes derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims (10)

1. A system for the continuous production of azo reactive dyes using supergravity, said system comprising:

a condensation reaction unit comprising a condensation reaction tank for generating a coupling component;

a diazotization reaction unit, the diazotization reaction unit comprising:

a pre-mix assembly for pre-mixing the heavy nitrogen component and the diazonium reagent, an

The spiral coil reactor is communicated with the premixing component so that the premixed reaction solution can perform diazotization reaction in the spiral coil reactor to generate diazonium salt;

the system further comprises:

the hypergravity coupling reaction unit is communicated with the diazotization reaction unit and the condensation reaction unit and is used for performing coupling reaction on diazonium salt and coupling components under a hypergravity environment to generate the azo reactive dye;

wherein, a disturbance piece with a fixed structure is arranged in an inner cavity of the spiral coil reactor for diazotization reaction, and the disturbance piece is used for disturbing the reaction solution in the spiral coil reactor.

2. The system according to claim 1, wherein the disturbing member comprises a fixed part fixed on the inner cavity surface of the spiral coil reactor and two free parts fixed with one end of the fixed part far away from the inner cavity surface of the spiral coil reactor, and the two free parts and the fixed part form a Y-shaped structure or a T-shaped structure.

3. The system of claim 2, wherein the disturbance element is disposed perpendicular to the inner cavity surface of the helical coil reactor or is disposed obliquely.

4. The system according to claim 1, wherein the disturbing member comprises a first portion which is reduced in diameter in the liquid inlet direction, and a second portion which is communicated with one end of the first portion having a smaller inner diameter, the second portion has an enlarged diameter structure in the liquid inlet direction, and the first portion and the second portion are symmetrically arranged with the connecting surface as a symmetrical plane.

5. The system of claim 1, further comprising:

and the ultrasonic feeder is used for feeding ultrasonic waves into the spiral coil reactor and the hypergravity coupling reaction unit respectively, wherein the ultrasonic intensities fed into the spiral coil reactor and the hypergravity coupling reaction unit are the same or different.

6. The system of claim 1, wherein the premix assembly comprises a first fluid line and a second fluid line;

the first infusion tube is sleeved outside the second infusion tube, a gap is formed between the first infusion tube and the second infusion tube to allow one of the diazo component and the diazo reagent to flow through, and a cavity in the second infusion tube allows the other of the diazo component and the diazo reagent to flow through;

one end of the first liquid conveying pipe, which is close to the spiral coil reactor, forms a pre-mixing area for mixing the diazo component and the diazo reagent, and the second liquid conveying pipe extends to an inlet of the pre-mixing area and sprays the other one of the diazo component and the diazo reagent to the pre-mixing area.

7. The system of claim 6, wherein the premixing zone comprises a reduced diameter portion adjacent to an inlet thereof and a flat portion in integral communication with the reduced diameter portion.

8. The system of claim 1, wherein the supergravity coupling reaction unit comprises:

the supergravity reactor is communicated with the spiral coil reactor;

a stirred tank reactor in series with the hypergravity reactor, an

And the pump is used for pumping diazonium salt after diazo reaction into the hypergravity rotating packed bed reactor and the pump of the discharge port of the stirred tank reactor to circularly pump back to the hypergravity reactor.

9. The system of claim 1, further comprising a heat exchange unit for controlling the temperature within the helical coil reactor reaction chamber and the temperature within the supergravity coupled reaction unit reaction chamber.

10. The system of claim 9, wherein the heat exchange unit comprises:

the pipeline jacket is sleeved outside the pipeline of the spiral coil reactor and is provided with a cavity into which liquid can be introduced;

the shell jacket is sleeved on the outer side of a shell of the reaction cavity formed by the supergravity reactor and is provided with a cavity into which liquid can be introduced; and

and the heat exchange device is used for heating or cooling liquid introduced into the pipeline jacket and the shell jacket.

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