Reaction device for preparing diamino-anthraquinone

Abstract

The utility model discloses a reaction device for preparing diamino-anthraquinone. The reaction device comprises a supporting bottom plate, a reaction tank and a recycling box, a stirring motor is fixedly mounted in the middle of the upper end of the reaction tank in a supporting manner, a stirring shaft is fixedly mounted on a transmission shaft part at the lower end of the stirring motor, stirring blades are fixedly mounted on the outer curved surface of the stirring shaft, a feeding port is fixedly mounted at the upper end of the reaction tank in a penetrating manner, and a temperature sensor is fixedly mounted at the upper end of the reaction tank in a penetrating manner; a temperature adjusting cavity is formed in the outer curved surface of the lower end of the reaction tank, the upper end and the lower end of the temperature adjusting cavity are fixedly communicated with a temperature adjusting inlet and a temperature adjusting outlet respectively, a discharging pipe is fixedly installed in the middle of the lower end of the reaction tank in a penetrating mode, an air inlet pipe is fixedly installed in the middle of the lower end of the discharging pipe in a penetrating mode, and an aeration disc is fixedly communicated with the upper end of the air inlet pipe; the upper end of the reaction tank is fixedly communicated with a guide pipe. According to the utility model, the preparation reaction of a diamino-anthraquinone raw material is realized, and meanwhile, the preparation mixing efficiency and the reaction uniformity are further improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically a reaction apparatus for the preparation of diaminoanthraquinone. Background Technology

[0002] Diaminoanthraquinones are a large class of anthraquinone derivatives, possessing a quinone structure and therefore being colored substances. The main characteristics of diaminoanthraquinones include:

[0003] It is soluble in benzene, pyridine, nitrobenzene, and aniline, and slightly soluble in hot acetic acid and ethanol. This solubility gives it a unique advantage in certain chemical reactions. It is also an important intermediate in the synthesis of dyes, widely used in the production of vat gray (BG), disperse turquoise blue (HBF), and acid dyes. Furthermore, it is a key component of disperse violet dye and is used in the dyeing process of polyester.

[0004] In summary, diaminoanthraquinone, as a derivative of anthraquinone, is an important dye intermediate. These substances play a crucial role in the chemical industry, particularly in dye synthesis.

[0005] However, in practical applications, diaminoanthraquinone, as an important member of anthraquinone derivatives, shows broad application prospects in dyes, pigments, pharmaceuticals, and pesticides due to its unique chemical structure and properties. However, its preparation process faces many challenges. For example, traditional preparation equipment often lacks effective temperature and stirring control during the reaction process, resulting in low reaction efficiency of the raw materials for diaminoanthraquinone preparation, further affecting the quality and yield of the product. Utility Model Content

[0006] The purpose of this invention is to provide a reaction apparatus for the preparation of diaminoanthraquinone, in order to solve the problem that traditional preparation apparatuses mentioned in the background art often lack effective temperature and stirring control during the reaction process, resulting in low reaction efficiency of the raw materials for the preparation of diaminoanthraquinone, which further affects the quality and yield of the product.

[0007] To achieve the above objectives, this utility model provides the following technical solution: including a supporting base plate, a reaction vessel, and a recovery box;

[0008] A stirring motor is fixedly installed at the middle of the upper end of the reaction tank. A stirring shaft is fixedly installed on the lower drive shaft of the stirring motor. A stirring blade is fixedly installed on the outer curved surface of the stirring shaft. A feed inlet is fixedly installed through the upper end of the reaction tank. A temperature sensor is fixedly installed through the upper end of the reaction tank. A temperature regulating cavity is opened on the outer curved surface of the lower end of the reaction tank. A temperature regulating inlet and a temperature regulating outlet are fixedly connected to the upper and lower ends of the temperature regulating cavity, respectively. A discharge pipe is fixedly installed through the middle of the lower end of the reaction tank. An air inlet pipe is fixedly installed through the middle of the lower end of the discharge pipe. An aeration disc is fixedly connected to the upper end of the air inlet pipe. A guide pipe is fixedly connected to the upper end of the reaction tank.

[0009] A recycling pipe is fixedly installed through the bottom of the recycling bin, and an exhaust pipe is fixedly connected to the top of the recycling bin. A condensing copper pipe is fixedly installed on the inner wall of the recycling bin, and a condensing inlet pipe and a condensing outlet pipe are fixedly connected to the outer side of the condensing copper pipe.

[0010] Preferably, the reaction vessel and the recovery tank are respectively supported and fixedly installed on the upper end of the support base plate.

[0011] Preferably, the stirring shaft is rotatably connected to the middle of the reaction vessel through a rotating shaft, and there are several stirring blades, which are symmetrically distributed from top to bottom along the outer curved surface of the stirring shaft.

[0012] Preferably, the feed inlet is connected to an external pipeline for preparing diaminoanthraquinone raw materials, and there are several feed inlets symmetrically distributed at the top of the reaction vessel.

[0013] Preferably, the temperature regulating inlet and temperature regulating outlet are respectively connected to an external temperature regulating medium pipeline, and a switch valve is fixedly installed at the lower end of the discharge pipe.

[0014] Preferably, the outside of the air inlet pipe is connected to an external control air pump via a one-way valve, and the aeration disc is located in the middle of the bottom of the reaction tank.

[0015] Preferably, the guide pipe extends to the lower end of the recycling bin, and a switch valve is fixedly installed at the lower end of the recycling pipe. The upper and lower ends of the recycling bin are respectively conical.

[0016] Preferably, the exhaust pipe is connected to an external waste gas treatment facility, and there are several condensing copper pipes, which are symmetrically distributed from top to bottom inside the recovery box. The condensing inlet pipe and the condensing outlet pipe are respectively connected to an external condensing medium pipeline.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention allows for temperature control of the raw materials inside the reaction vessel by introducing a temperature-regulating hot or cold water medium into the temperature-regulating chamber. Simultaneously, an external control air pump is activated, discharging high-pressure compressed air through the inlet pipe into the aeration disc. As the compressed air enters the aeration disc, it escapes as bubbles from the micropores. These bubbles, during their ascent, disturb the surrounding liquid, creating a stirring-like effect. In the preparation of diaminoanthraquinone, the raw material solution may initially exhibit localized concentration unevenness; this... The disturbance caused by rising bubbles can promote the mixing of raw materials in different areas. At the same time, during the reaction, the movement of bubbles generated by the aeration disc helps to break the temperature stratification in the liquid. The reaction is often accompanied by the release or absorption of heat. If the heat cannot be transferred evenly in time, it will lead to local excessively high or low temperatures, affecting the reaction and mixing effect. When the bubbles rise, they drive the liquid to flow, so that the heat can be distributed more evenly in the entire reaction system, maintaining a relatively stable reaction temperature. Thus, while realizing the preparation reaction of diaminoanthraquinone raw materials, it further improves the preparation mixing efficiency and reaction uniformity.

[0019] This invention also allows for the opening of an external condensing medium pipeline when waste gas is discharged into the lower part of the recovery box. When the external condensing medium pipeline is opened, the condensing medium is circulated into the condensing copper pipe through the condensing inlet and condensing outlet pipes. When the condensing medium is circulated into the condensing copper pipe, the waste gas inside the recovery box exchanges heat with the condensing copper pipe, causing the condensable gases in the waste gas to be cooled and condensed into liquid, which is then discharged and recovered through the recovery pipe. After the waste gas is condensed, it can be discharged into an external waste gas treatment facility for subsequent treatment through the exhaust pipe. This allows for the simultaneous condensation and recovery of waste gas generated during the preparation reaction of diaminoanthraquinone raw materials. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the reaction apparatus for preparing diaminoanthraquinone according to this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the reaction apparatus for preparing diaminoanthraquinone according to this utility model. Figure 2 ;

[0022] Figure 3 This is a cross-sectional schematic diagram of the overall structure of the reaction apparatus for preparing diaminoanthraquinone according to this utility model.

[0023] In the diagram: 1. Support base plate; 2. Reaction tank; 3. Recovery tank; 4. Stirring motor; 5. Stirring shaft; 6. Stirring blade; 7. Feed inlet; 8. Temperature sensor; 9. Temperature control chamber; 10. Temperature control inlet; 11. Temperature control outlet; 12. Discharge pipe; 13. Air inlet pipe; 14. Aeration disc; 15. Guide pipe; 16. Exhaust pipe; 17. Condensing copper pipe; 18. Condensing inlet pipe; 19. Condensing outlet pipe; 20. Recovery pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 This utility model provides a technical solution for a reaction device for the preparation of diaminoanthraquinone: it includes a supporting base plate 1, a reaction tank 2 and a recovery box 3, and the reaction tank 2 and the recovery box 3 are respectively supported and fixedly installed on the upper end of the supporting base plate 1;

[0026] A stirring motor 4 is fixedly mounted on the upper middle part of the reaction vessel 2. A stirring shaft 5 is fixedly mounted on the lower drive shaft of the stirring motor 4. The stirring shaft 5 is rotatably connected to the middle part of the reaction vessel 2 through a rotating shaft. Stirring blades 6 are fixedly mounted on the outer curved surface of the stirring shaft 5. There are several stirring blades 6, which are symmetrically distributed from top to bottom on the outer curved surface of the stirring shaft 5. A feed inlet 7 is fixedly mounted through the upper end of the reaction vessel 2 and is connected to an external pipeline for preparing diaminoanthraquinone raw materials. There are several feed inlets 7, which are symmetrically distributed on the upper end of the reaction vessel 2, so that the required diaminoanthraquinone raw materials are discharged into the interior of the reaction vessel 2 through the feed inlets 7. A temperature sensor 8 is fixedly mounted through the upper end of the reaction vessel 2. The temperature of the raw materials inside the reaction tank 2 can be monitored by temperature sensor 8. A temperature regulating cavity 9 is opened on the outer curved surface of the lower end of the reaction tank 2. The upper and lower ends of the temperature regulating cavity 9 are respectively fixedly connected to a temperature regulating inlet 10 and a temperature regulating outlet 11. The temperature regulating inlet 10 and the temperature regulating outlet 11 are respectively connected to an external temperature regulating medium pipeline. A discharge pipe 12 is fixedly installed through the middle of the lower end of the reaction tank 2. A switch valve is fixedly installed at the lower end of the discharge pipe 12. An air inlet pipe 13 is fixedly installed through the middle of the lower end of the discharge pipe 12. The outside of the air inlet pipe 13 is connected to an external control air pump through a one-way valve. An aeration plate 14 is fixedly connected to the upper end of the air inlet pipe 13. The aeration plate 14 is located in the middle of the inner bottom of the reaction tank 2. A guide pipe 15 is fixedly connected to the upper end of the reaction tank 2.

[0027] The guide pipe 15 extends to the lower end of the recycling box 3. A recycling pipe 20 is fixedly installed through the bottom of the recycling box 3, and a switch valve is fixedly installed at the lower end of the recycling pipe 20. The upper and lower ends of the recycling box 3 are conical. An exhaust pipe 16 is fixedly connected to the upper end of the recycling box 3, and the exhaust pipe 16 is connected to the external waste gas treatment facility. A condensing copper pipe 17 is fixedly installed on the inner wall of the recycling box 3. There are several condensing copper pipes 17, which are symmetrically distributed from top to bottom inside the recycling box 3. A condensing inlet pipe 18 and a condensing outlet pipe 19 are fixedly connected to the outer side of the condensing copper pipe 17, and the condensing inlet pipe 18 and the condensing outlet pipe 19 are respectively connected to the external condensing medium pipeline.

[0028] Working principle: In use, the present invention discharges the required diaminoanthraquinone raw material into the reaction tank 2 through the feed inlet 7. When the diaminoanthraquinone raw material is discharged into the reaction tank 2, the stirring motor 4 is turned on by control. When the stirring motor 4 is turned on, it will drive the stirring shaft 5 to rotate. When the stirring shaft 5 rotates, it will drive the stirring blade 6 to rotate. When the stirring blade 6 rotates, it will drive the diaminoanthraquinone raw material in the reaction tank 2 to be stirred and mixed.

[0029] When the diaminoanthraquinone raw material is stirred and mixed, the preparation temperature of the raw material inside the reaction tank 2 is monitored by temperature sensor 8. When the preparation temperature of the raw material is too high or too low, hot or cold water medium for temperature regulation is circulated into the temperature regulation chamber 9 through temperature regulation inlet 10 and temperature regulation outlet 11. When the hot or cold water medium for temperature regulation is discharged into the temperature regulation chamber 9, the temperature of the raw material inside the reaction tank 2 can be regulated through the temperature regulation chamber 9. At the same time, the external control air pump is turned on. When the external control air pump is turned on, high-pressure compressed air is discharged into the aeration plate 14 along the air inlet pipe 13. When the compressed air is discharged into the aeration plate 14, the compressed gas will escape from the micropores of the aeration plate 14 in the form of bubbles. These bubbles will affect the surrounding liquid during the rising process. The rising bubbles create a disturbance, similar to stirring. In the preparation of diaminoanthraquinone, the raw material solution may have local uneven concentrations. This disturbance can promote the mixing of raw materials in different areas. At the same time, the movement of bubbles generated by the aeration disc 14 helps to break the temperature stratification in the liquid. Reactions are often accompanied by the release or absorption of heat. If the heat cannot be transferred evenly in time, it will lead to local excessively high or low temperatures, affecting the reaction and mixing effect. When the bubbles rise, they drive the liquid to flow, so that the heat can be more evenly distributed in the entire reaction system, maintaining a relatively stable reaction temperature. Thus, while preparing diaminoanthraquinone raw materials, the mixing efficiency and reaction uniformity are further improved.

[0030] Simultaneously, the waste gas generated from the preparation reaction of diaminoanthraquinone raw materials is discharged into the lower end of the recovery tank 3 through the guide pipe 15. When the waste gas is discharged into the lower end of the recovery tank 3, the external condensing medium pipeline is opened by control. When the external condensing medium pipeline is opened, the condensing medium is circulated into the condensing copper pipe 17 through the condensing inlet pipe 18 and the condensing outlet pipe 19. When the condensing medium is circulated into the condensing copper pipe 17, the waste gas inside the recovery tank 3 will exchange heat with the condensing copper pipe 17, so that the condensable gases in the waste gas are cooled and condensed into liquid, and discharged and recovered through the recovery pipe 20. After the waste gas is condensed, the condensed and recovered waste gas can be discharged into the external waste gas treatment facility for subsequent treatment through the exhaust pipe 16. Thus, the preparation reaction of diaminoanthraquinone raw materials can be carried out simultaneously, and the waste gas generated from the preparation reaction can be condensed and recovered.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction apparatus for the preparation of diaminoanthraquinone, characterized in that: It includes a supporting base plate (1), a reaction vessel (2), and a recovery box (3); A stirring motor (4) is fixedly installed at the middle of the upper end of the reaction tank (2). A stirring shaft (5) is fixedly installed on the transmission shaft of the lower end of the stirring motor (4). A stirring blade (6) is fixedly installed on the outer curved surface of the stirring shaft (5). A feed inlet (7) is fixedly installed through the upper end of the reaction tank (2). A temperature sensor (8) is fixedly installed through the upper end of the reaction tank (2). A temperature regulating cavity (9) is opened on the outer curved surface of the lower end of the reaction tank (2). A temperature regulating inlet (10) and a temperature regulating outlet (11) are fixedly connected to the upper and lower ends of the temperature regulating cavity (9), respectively. A discharge pipe (12) is fixedly installed through the middle of the lower end of the reaction tank (2). An air inlet pipe (13) is fixedly installed through the middle of the lower end of the discharge pipe (12). An aeration disc (14) is fixedly connected to the upper end of the air inlet pipe (13). A guide pipe (15) is fixedly connected to the upper end of the reaction tank (2). A recycling pipe (20) is fixedly installed through the bottom of the recycling box (3), and an exhaust pipe (16) is fixedly connected to the upper end of the recycling box (3). A condensing copper pipe (17) is fixedly installed on the inner wall of the recycling box (3), and a condensing inlet pipe (18) and a condensing outlet pipe (19) are fixedly connected to the outer side of the condensing copper pipe (17).

2. The reaction apparatus for preparing a diaminanthraquinone according to claim 1, wherein: The reaction vessel (2) and the recovery box (3) are respectively supported and fixedly installed on the upper end of the support base plate (1).

3. The reaction apparatus for preparing a diaminium anthraquinone according to claim 2, characterized by: The stirring shaft (5) is rotatably connected to the middle of the reaction vessel (2) through a rotating shaft. There are several stirring blades (6), which are symmetrically distributed from top to bottom on the outer curved surface of the stirring shaft (5).

4. The reaction apparatus for preparing a diaminium anthraquinone according to claim 3, characterized by: The feed inlet (7) is connected to the external diaminoanthraquinone preparation raw material pipeline. There are several feed inlets (7), which are symmetrically distributed at the upper end of the reaction vessel (2).

5. A reaction apparatus for preparing a diaminanthraquinone according to claim 4, wherein: The temperature regulating inlet (10) and temperature regulating outlet (11) are respectively connected to the external temperature regulating medium pipeline, and a switch valve is fixedly installed at the lower end of the discharge pipe (12).

6. A reaction apparatus for preparing a diaminanthraquinone according to claim 5, wherein: The air inlet pipe (13) is connected to an external control air pump via a one-way valve on the outside, and the aeration plate (14) is located in the middle of the bottom of the reaction tank (2).

7. A reaction apparatus for preparing a diaminanthraquinone according to claim 6, wherein: The guide tube (15) extends to the lower end of the recycling box (3), and a switch valve is fixedly installed at the lower end of the recycling tube (20). The upper and lower ends of the recycling box (3) are respectively conical.

8. The reaction apparatus for preparing a diaminium anthraquinone according to claim 7, characterized by: The exhaust pipe (16) is connected to the external waste gas treatment facility. There are several condensing copper pipes (17), which are symmetrically distributed from top to bottom inside the recovery box (3). The condensing inlet pipe (18) and the condensing outlet pipe (19) are connected to the external condensing medium pipeline.

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