Catalyst adding device for dye intermediate production
By designing a catalyst addition device for dye intermediate production, the problems of catalyst precipitation and inaccurate addition were solved, achieving uniform addition and precise control of the catalyst, thereby improving the catalytic effect and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU JINTE CHEM CO LTD
- Filing Date
- 2024-12-24
- Publication Date
- 2026-04-17
AI Technical Summary
In the production process of dye intermediates, the addition of catalysts can lead to precipitation, and the timing and amount of addition are difficult to control precisely, which affects the catalytic effect.
A catalyst addition device was designed, comprising a preparation tank, a stirring mechanism, an ultrasonic generator, a metering pump, and a control module. The device avoids sedimentation through stirring and ultrasonic waves, precisely controls the addition amount and time, and is equipped with a spray plate and a cleaning system to ensure uniform addition.
This method achieves uniform mixing of the catalyst, avoids precipitation, and allows for precise control of the addition amount and time, thereby improving catalytic efficiency and product quality.
Smart Images
Figure CN224127217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dye intermediate production technology, specifically a catalyst addition device for dye intermediate production. Background Technology
[0002] Dye intermediates, also known as intermediates, broadly refer to various aromatic hydrocarbon derivatives used in the production of dyes and organic pigments. They are produced from aromatic hydrocarbons such as benzene, toluene, naphthalene, and anthracene derived from coal chemical and petrochemical industries through a series of organic synthesis unit processes. With the development of the chemical industry, the application scope of dye intermediates has expanded to the pharmaceutical, pesticide, explosives, and information recording materials industries, as well as the production of auxiliaries, surfactants, fragrances, plastics, and synthetic fibers. There are many types of dye intermediates, with hundreds of important ones. The production process of dye intermediates usually requires the addition of catalysts, and the quality of the catalyst preparation, the time of addition, and the amount added have a significant impact on the product quality of the dye intermediates. Currently, in the production process of dye intermediates, the catalyst is usually prepared into a solution in advance and added to the reaction vessel for catalytic reaction. However, due to the need to control the amount and time of catalyst addition, precipitation may occur during the addition of the prepared catalyst, ultimately leading to unsatisfactory catalytic effects; furthermore, the addition time and amount need to be manually controlled, which introduces a certain degree of error. Therefore, there is a need to develop a catalyst addition device for the production of dye intermediates that can avoid precipitation during catalyst addition and facilitate precise control of addition time and amount. Utility Model Content
[0003] To address the above technical problems, this utility model provides a catalyst addition device for the production of dye intermediates that can avoid precipitation during catalyst addition and facilitate precise control of addition time and amount. This solves the problems of poor catalyst preparation quality and easy error in controlling addition time and amount during the current production of dye intermediates.
[0004] To solve the above-mentioned technical problems, the present invention provides a catalyst addition device for the production of dye intermediates, comprising a preparation tank, an inlet at the top of the preparation tank, a discharge pipe fixedly connected to the bottom, a connecting rod fixedly connected to the bottom of the preparation tank, an mounting plate fixedly connected to the bottom of the connecting rod, a feeding filter cartridge placed through the inlet, a stirring mechanism rotatably connected inside the preparation tank, a vibration plate fixedly connected to the bottom, an ultrasonic generator fixedly connected to one side, the vibration plate being connected to the ultrasonic generator, a metering pump fixedly connected to the discharge pipe, and a spray plate fixedly connected to the bottom of the discharge pipe.
[0005] Furthermore, a control box is fixedly connected to one side of the preparation tank. The control box contains a control module and a time module. The control module and the time module are communicatively connected. The metering pump and the ultrasonic generator are controlled by the control module.
[0006] Furthermore, the stirring mechanism includes a rotating rod and a stirring motor. The rotating rod is rotatably connected inside the preparation tank, and several stirring rods are fixedly connected to the rotating rod. The upper end of the rotating rod passes through the preparation tank and is drivenly connected to the output shaft of the stirring motor.
[0007] Furthermore, a first bevel gear is fixedly connected to the output shaft of the stirring motor, and a second bevel gear is fixedly connected to the rotating rod, wherein the first bevel gear and the second bevel gear mesh and transmit power.
[0008] Furthermore, both the rotating rod and the stirring rod are hollow tubular structures. The upper end of the rotating rod is fixedly connected to a rotary joint, and the upper end of the rotary joint is fixedly connected to a water inlet pipe. A high-pressure pump is fixedly connected to the water inlet pipe, and a nozzle is fixedly connected to the other end of the stirring rod.
[0009] Furthermore, a level gauge is fixedly connected to the preparation tank.
[0010] This utility model has the following advantages compared with the prior art:
[0011] 1. This utility model features a preparation tank detachably connected to the reactor, with a stirring mechanism inside to continuously stir the prepared catalyst. A vibration plate connected to an ultrasonic generator is installed at the bottom of the tank to prevent sedimentation caused by timing of addition. A feed filter is placed at the tank's inlet to ensure uniform and thorough mixing of the catalyst with the solvent, filtering out larger lumps to prevent them from affecting catalytic efficiency and effect. A metering pump precisely controls the amount of catalyst added, while a spray plate ensures uniform addition of the catalyst to the reactor, guaranteeing better catalytic performance. A time module in the control box allows for setting the catalyst addition time according to production conditions, solving problems caused by errors in manual addition.
[0012] 2. This utility model sets the rotating rod and stirring rod as hollow structures, connects a nozzle to the end of the stirring rod, connects a rotary joint to the upper end of the rotating rod, and connects a high-pressure pump to the water inlet pipe. This allows for the spraying of cleaning water onto the inner wall of the preparation tank after the catalyst is added, facilitating the cleaning of the inside of the preparation tank and ensuring the quality of subsequent catalyst preparation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] In the diagram: 1. Preparation tank, 2. Feed inlet, 3. Feed pipe, 4. Feeding filter, 5. Rotating rod, 6. Stirring rod, 7. Stirring motor, 8. First bevel gear, 9. Second bevel gear, 10. Rotary joint, 11. High-pressure pump, 12. Water inlet pipe, 13. Nozzle, 14. Vibration plate, 15. Ultrasonic generator, 16. Control box, 17. Metering pump, 18. Spraying disc, 19. Connecting rod. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] like Figure 1 The catalyst addition device for the production of dye intermediates shown includes a preparation tank 1, with a feed inlet 2 at the top and a feed pipe 3 fixedly connected to the bottom. A connecting rod 19 is fixedly connected to the bottom of the preparation tank 1, and a mounting plate is fixedly connected to the bottom of the connecting rod 19. A feeding filter 4 is placed through the feed inlet 2 and extends into the preparation tank 1. The side wall of the feeding filter 4 has several filter holes. A stirring mechanism is rotatably connected inside the preparation tank 1, a vibration plate 14 is fixedly connected to the bottom, and an ultrasonic generator 15 is fixedly connected to one side. The vibration plate 14 is electrically connected to the ultrasonic generator 15. A metering pump 17 is fixedly connected to the feed pipe 3, and a spray plate 18 is fixedly connected to the bottom of the feed pipe 3.
[0017] It should be noted that, in this embodiment, during the use of the device, the mounting plate is connected to the top of the reactor for dye intermediate production via connecting bolts, and the spray plate 18 extends into the feed inlet of the reactor. To ensure sufficient material discharge, the bottom of the preparation tank 1 is inclined downwards towards the discharge pipe 3; to facilitate the control of catalyst addition, a solenoid valve is fixedly connected to the discharge pipe 3 above the metering pump 17.
[0018] To facilitate automated control, the addition amount and time are set to ensure more precise catalyst addition. A control box 16 is fixedly connected to one side of the preparation tank 1. The control box 16 contains a control module and a time module. The control module and the time module are connected in communication. The metering pump 17 and the ultrasonic generator 15 are controlled by the control module.
[0019] To ensure catalyst quality and prevent precipitation from causing a deterioration in catalyst quality, the stirring mechanism includes a rotating rod 5 and a stirring motor 7. The stirring motor 7 is fixedly connected to the top of the preparation tank 1 via a motor base and bolts. The rotating rod 5 is rotatably connected inside the preparation tank 1 via bearings. Several stirring rods 6 are fixedly connected to the rotating rod 5. The upper end of the rotating rod 5 passes through the preparation tank 1 and is connected to the output shaft of the stirring motor 7 for transmission.
[0020] To ensure stable rotation of the rotating rod 5 via the stirring motor 7, a first bevel gear 8 is fixedly connected to the output shaft of the stirring motor 7, and a second bevel gear 9 is fixedly connected to the rotating rod 5. The first bevel gear 8 and the second bevel gear 9 mesh and transmit power. It should be noted that in this embodiment, the output shaft of the stirring motor 7 and the rotating rod 5 can also be driven by means of chains and sprockets, belts and pulleys, etc.
[0021] To facilitate cleaning of the preparation tank 1 after catalyst addition, both the rotating rod 5 and the stirring rod 6 are hollow tubular structures. The upper end of the rotating rod 5 is fixedly connected to the rotary joint 10, and the upper part of the rotary joint 10 is fixedly connected to the top of the preparation tank 1 via a reinforcing rod. A water inlet pipe 12 is fixedly connected to the upper end of the rotary joint 10, and a high-pressure pump 11 is fixedly connected to the water inlet pipe 12. A nozzle 13 is fixedly connected to the other end of the stirring rod 6. It should be noted that in this embodiment, the water inlet pipe 12 is connected to an external water source; cleaning can be performed simply by turning on the water source.
[0022] To facilitate observation of the amount of catalyst solution prepared, a level gauge is fixedly connected to the preparation tank 1.
[0023] The working process of this embodiment is as follows:
[0024] In the production of dye intermediates, this device is connected to the top of the reactor using connecting bolts, and the spray plate 18 is extended into the reactor's inlet. Solvent is added to the preparation tank 1 according to production needs. The feeding filter cartridge 4 is placed into the preparation tank 1 through the inlet 2. Catalyst is added to the feeding filter cartridge 4 according to the amount of solvent. Then, the stirring motor 7 is started, driving the first bevel gear 8 to rotate, which in turn drives the second bevel gear 9 to rotate, thereby driving the rotating rod 5 to rotate the stirring rod 6, stirring the liquid in the preparation tank 1. This allows the liquid to continuously flush the catalyst in the feeding filter cartridge 4, filtering out larger lumps of material. Simultaneously, the ultrasonic generator 15 is started, driving the vibrating plate 14 to operate, making the catalyst preparation more uniform. After the catalyst is prepared, the catalyst addition time and unit time addition amount are set in the control box 16. According to the set time, the metering pump 17 is controlled to run, allowing the catalyst to be added to the reactor through the discharge pipe 3 and the spray plate 18. During the addition process, the stirring motor 7 is kept running to prevent catalyst precipitation. After the catalyst is added, remove the device, then connect the water source, start the high-pressure pump 11, and start the stirring motor 7. Under the action of the high-pressure pump 11, the cleaning water is sprayed from the water inlet pipe 12 through the rotary joint 10, the rotating rod 5, the stirring rod 6 and out of the nozzle 13 to clean the inner wall of the preparation tank 11.
Claims
1. A catalyst addition device for the production of dye intermediates, comprising a preparation tank (1), wherein the preparation tank (1) has a feed inlet (2) at the top and a feed pipe (3) fixedly connected to the bottom, characterized in that: A connecting rod (19) is fixedly connected to the bottom of the preparation tank (1), and an mounting plate is fixedly connected to the bottom of the connecting rod (19). A feeding filter (4) is placed through the feed inlet (2). A stirring mechanism is rotatably connected inside the preparation tank (1), a vibration plate (14) is fixedly connected to the bottom, and an ultrasonic generator (15) is fixedly connected to one side. The vibration plate (14) is connected to the ultrasonic generator (15). A metering pump (17) is fixedly connected to the discharge pipe (3), and a spray plate (18) is fixedly connected to the bottom of the discharge pipe (3).
2. The catalyst adding device for dye intermediate production according to claim 1, characterized by: A control box (16) is fixedly connected to one side of the preparation tank (1). The control box (16) contains a control module and a time module. The control module is communicatively connected to the time module. The metering pump (17) and the ultrasonic generator (15) are controlled by the control module.
3. The catalyst adding device for dye intermediate production according to claim 1, characterized by: The stirring mechanism includes a rotating rod (5) and a stirring motor (7). The rotating rod (5) is rotatably connected inside the preparation tank (1). Several stirring rods (6) are fixedly connected to the rotating rod (5). The upper end of the rotating rod (5) passes through the preparation tank (1) and is connected to the output shaft of the stirring motor (7) for transmission.
4. The catalyst adding device for dye intermediate production according to claim 3, characterized by: The output shaft of the stirring motor (7) is fixedly connected to a first bevel gear (8), and the rotating rod (5) is fixedly connected to a second bevel gear (9). The first bevel gear (8) and the second bevel gear (9) mesh and transmit power.
5. The catalyst adding device for dye intermediate production according to claim 3, characterized by: Both the rotating rod (5) and the stirring rod (6) are hollow tubular structures. The upper end of the rotating rod (5) is fixedly connected to the rotary joint (10). The upper end of the rotary joint (10) is fixedly connected to the water inlet pipe (12). The water inlet pipe (12) is fixedly connected to the high-pressure pump (11). The other end of the stirring rod (6) is fixedly connected to the nozzle (13).
6. The catalyst adding device for dye intermediate production according to claim 1, characterized by: A level gauge is fixedly connected to the preparation tank (1).