Storage device for preventing chromaticity of phenol from rising

By combining a stirring shaft, stirring paddle, heating coil, and nitrogen pipe, the problem of increased phenol color during storage was solved, achieving uniform mixing and stable storage of phenol and citric acid, thus ensuring product quality.

CN223736764UActive Publication Date: 2025-12-30HENAN PINGMEI SHENMA POLYCARBON MATERIAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520385435.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2025-12-30
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The existing storage device exhibits an increase in color intensity during the phenol storage process compared to the later stages, causing the color intensity of bisphenol A products to exceed the standard during factory inspection and affecting product quality.

Method used

The system employs a combination of components such as a stirring shaft, stirring paddle, heating coil, and nitrogen pipe. Through stirring, heating, and nitrogen sealing, it ensures the uniform mixing of phenol and citric acid and maintains the phenol at 50°C to prevent color increase.

Benefits of technology

This effectively prevents the increase in phenol color, ensures the uniformity and stability of the mixing of phenol and citric acid, and guarantees the quality of the product.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223736764U_ABST
    Figure CN223736764U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of phenol storage equipment, and particularly relates to a storage device for preventing chromaticity of phenol from rising, which comprises a tank body provided with a feeding device. The feeding device comprises a mixing barrel communicated with the tank body; a feeding pipe and a citric acid pipe corresponding to the feeding pipe are arranged on the mixing barrel; the mixing barrel is also rotationally connected with a main shaft, and the main shaft is provided with a stirring paddle corresponding to the mixing barrel; a plurality of partition plates which are arranged from top to bottom are arranged in the mixing barrel, communicating holes are formed in the multiple partition plates, and the multiple communicating holes are formed in a staggered mode; a nitrogen pipe is arranged on the tank body, and a heating coil is further arranged on the tank body; the utility model effectively solves the problem that the chromaticity of the existing storage device is increased in the later stage and the earlier stage of storing phenol.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of phenol storage equipment, specifically relating to a storage device that prevents the color of phenol from increasing. Background Technology

[0002] Phenol is an organic compound with the chemical formula C6H5OH. It is a colorless, needle-like crystal with a characteristic odor and is toxic. It is an important raw material for the production of certain resins, bactericides, preservatives, and pharmaceuticals (such as aspirin). It can also be used for disinfecting surgical instruments and treating excrement, as well as for skin sterilization, relieving itching, and treating otitis media. It has a melting point of 43°C, is slightly soluble in water at room temperature, and readily soluble in organic solvents; at temperatures above 65°C, it is miscible with water in any proportion.

[0003] During storage, phenol exhibits an increase in color intensity compared to the later stages. Experiments have shown that phenol turns red and powdery after being sampled and left for a period of time. This is due to the oxidation of phenol to form a new substance called quinone. The increased color intensity of phenol directly causes bisphenol A (BPA) products to exceed color standards during factory inspection, and the quality of BPA directly affects the quality of PC products. Therefore, a storage device is needed to prevent the increase in color intensity of phenol during storage. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a storage device to prevent the color of phenol from increasing, which effectively solves the problem that the color of phenol increases in the later stage of storage compared with the earlier stage in the existing storage device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a storage device for preventing the increase of phenol color, comprising a tank body, wherein a feeding device is provided on the tank body; the feeding device includes a mixing tank communicating with the tank body, wherein a feeding pipe and a citric acid pipe corresponding to the feeding pipe are provided on the mixing tank; a main shaft is rotatably connected to the mixing tank, wherein a stirring paddle corresponding to the mixing tank is provided on the main shaft; a plurality of partitions are provided inside the mixing tank from top to bottom, wherein each of the plurality of partitions is provided with a connecting hole, and the plurality of connecting holes are staggered; a nitrogen pipe is provided on the tank body, and a heating coil is also provided on the tank body.

[0006] Furthermore, the tank body includes an inner layer communicating with a mixing tank, an outer layer covering the inner layer, and a heating coil disposed between the inner layer and the outer layer.

[0007] Furthermore, the mixing tank is equipped with a mixing motor, and the output end of the mixing motor is fixedly connected to the main shaft.

[0008] Furthermore, a rotating frame is rotatably connected to the mixing tank, and multiple outer guide plates arranged along the circumference are fixedly connected to the rotating frame.

[0009] Furthermore, an inner guide plate, which is fixedly connected to the rotating frame, is provided between adjacent outer guide plates.

[0010] Furthermore, a sun gear is fixedly connected to the main shaft, and a gear ring is fixedly connected to the mixing tank; a planet carrier is coaxially fixed to the rotating frame, and planet gears that mesh with the sun gear and gear ring are rotatably connected to the planet carrier.

[0011] Furthermore, the tank is equipped with a discharge pipe, and both the discharge pipe and the nitrogen pipe are equipped with valves.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, this invention employs a mixing shaft, a stirring paddle, a tank, a heating coil, and a nitrogen pipe. The main shaft and stirring paddle work together to mix phenol and citric acid. Multiple baffles and their connecting holes guide the flow of phenol and citric acid, improving their flow path within the mixing tank and ensuring thorough mixing by the stirring paddle, thus enhancing the uniformity of the mixture. The heating coil heats the phenol in the tank, and nitrogen is introduced through the nitrogen pipe to seal the phenol. By maintaining the phenol at 50°C and sealing it with nitrogen, along with the addition of citric acid, the color remains qualified and stable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the mixing tank in this utility model;

[0016] In the diagram: 1. Discharge pipe, 2. Tank body, 3. Heating coil, 4. Mixing tank, 5. Mixing motor, 6. Feed pipe, 7. Citric acid pipe, 8. Nitrogen pipe, 9. Main shaft, 10. Sun gear, 11. Gear ring, 12. Rotating frame, 13. Outer guide plate, 14. Inner guide plate, 15. Baffle, 16. Agitator. Detailed Implementation

[0017] A storage device to prevent phenol from increasing in color, such as Figure 1 and Figure 2 As shown, the system includes a tank body 2, on which a feeding device is provided; the feeding device includes a mixing tank 4 connected to the tank body 2, and the mixing tank 4 is provided with a feeding pipe 6 and a citric acid pipe 7 corresponding to the feeding pipe 6; a main shaft 9 is also rotatably connected to the mixing tank 4, and a stirring paddle 16 corresponding to the mixing tank 4 is provided on the main shaft 9; multiple baffles 15 are provided inside the mixing tank 4 arranged from top to bottom, and each of the multiple baffles 15 is provided with a connecting hole, which is staggered; a nitrogen pipe 8 is provided on the tank body 2, and a heating coil 3 is also provided on the tank body 2.

[0018] In use, liquid phenol enters the mixing tank 4 through the feed pipe 6, and citric acid enters the mixing tank 4 through the citric acid pipe 7. The main shaft 9 rotates, driving the stirring paddle 16 to mix the phenol and citric acid. Multiple baffles 15 and their connecting holes guide the flow of phenol and citric acid, improving their flow path within the mixing tank 4 and ensuring the stirring paddle 16 can fully mix them, thus improving the uniformity of the mixture. The phenol in the tank 2 is heated by the heating coil 3, and nitrogen is introduced through the nitrogen pipe 8 to seal the phenol. By maintaining the phenol at 50°C and sealing it with nitrogen, the addition of citric acid ensures that the color is qualified and stable.

[0019] Furthermore, the tank 2 includes an inner layer that communicates with the mixing tank 4, and an outer layer is provided outside the inner layer. The heating coil 3 is located between the inner layer and the outer layer; the phenol in the inner layer is heated by the heating coil 3.

[0020] Furthermore, the mixing tank 4 is equipped with a mixing motor 5, the output end of which is fixedly connected to the main shaft 9; the mixing motor 5 drives the main shaft 9 to rotate.

[0021] Furthermore, a rotating frame 12 is rotatably connected to the mixing tank 4, and multiple outer guide plates 13 arranged circumferentially are fixed to the rotating frame 12. An inner guide plate 14 fixed to the rotating frame 12 is provided between adjacent outer guide plates 13. The inner guide plate 14 and the outer guide plate 13 cooperate to guide the phenol, so that the phenol flows away from the main shaft 9 and towards the main shaft 9 under the guiding action of the inner guide plate 14 and the outer guide plate 13, thereby promoting the fluidity of the phenol and improving the uniformity of the mixing of phenol and citric acid. In addition, the rotating frame 12 rotates along the mixing tank 4, so that the inner guide plate 14 and the outer guide plate 13 guide the phenol at different positions.

[0022] Furthermore, a sun gear 10 is fixedly connected to the main shaft 9, and a gear ring 11 is fixedly connected to the mixing tank 4; a planet carrier is coaxially fixed to the rotating frame 12, and planet gears that mesh with the sun gear 10 and the gear ring 11 are rotatably connected to the planet carrier; when the main shaft 9 rotates, the main shaft 9 drives the planet carrier to rotate through the cooperation of the sun gear 10, the gear ring 11, and the planet gears, and the planet carrier drives the rotating frame 12 to rotate.

[0023] Furthermore, the tank body 2 is provided with a discharge pipe 1, and both the discharge pipe 1 and the nitrogen pipe 8 are provided with valves.

[0024] The working process of this utility model is as follows:

[0025] In use, liquid phenol enters the mixing tank 4 through the feed pipe 6, and citric acid enters the mixing tank 4 through the citric acid pipe 7. The mixing motor 5 drives the main shaft 9 to rotate, and the main shaft 9 drives the stirring paddle 16 to mix and stir the phenol and citric acid. Through the cooperation of multiple partitions 15 and their connecting holes, the phenol and citric acid are guided to improve the flow path of phenol and citric acid in the mixing tank 4, so that the stirring paddle 16 can fully stir the phenol and citric acid to improve the uniformity of the phenol and citric acid mixture. At the same time, the main shaft 9 drives the planetary carrier to rotate through the cooperation of the sun gear 10, the gear ring 11, and the planetary gears. The planetary carrier drives the rotating frame 12 to rotate. The rotating frame 12 drives the inner guide plate 14 and the outer guide plate 13 to move in a circle. The inner guide plate 14 drives the phenol to flow closer to the main shaft 9, and the outer guide plate 13 drives the phenol to flow away from the main shaft 9, thereby improving the fluidity of the phenol.

[0026] In addition, the phenol in tank 2 is heated by heating coil 3, and nitrogen is introduced through nitrogen pipe 8 to seal the phenol; the phenol is kept at 50°C, sealed with nitrogen, and in an environment with added citric acid to ensure that the phenol color is qualified and stable.

Claims

1. A storage device for preventing the increase of colority of phenol, comprising a tank body (2), a feeding device is arranged on the tank body (2); characterized in that: The feeding device comprises a mixing barrel (4) in communication with the tank body (2), the mixing barrel (4) is provided with a feeding pipe (6) and a citric acid pipe (7) corresponding to the feeding pipe (6); the mixing barrel (4) is further rotationally connected with a main shaft (9), the main shaft (9) is provided with a stirring paddle (16) corresponding to the mixing barrel (4); the mixing barrel (4) is provided with a plurality of baffles (15) arranged from top to bottom, the baffles (15) are all provided with communication holes, and the communication holes are arranged in a staggered manner.

2. The storage device for preventing the increase in color of phenol according to claim 1, characterized by: The tank body (2) comprises an inner layer in communication with the mixing barrel (4), the inner layer is sleeved with an outer layer, and the heating coil (3) is arranged between the inner layer and the outer layer.

3. The storage device for preventing the increase in color of phenol according to claim 1, wherein: The mixing barrel (4) is provided with a mixing motor (5), and the output end of the mixing motor (5) is fixedly connected with the main shaft (9).

4. The storage device to prevent phenol color increase according to claim 1, characterized by: The mixing barrel (4) is rotationally connected with a rotating frame (12), and the rotating frame (12) is fixedly connected with a plurality of outer guide plates (13) arranged along the circumference.

5. The storage device to prevent phenol color increase according to claim 4, characterized in that: Adjacent outer guide plates (13) are provided with inner guide plates (14) fixedly connected with the rotating frame (12).

6. The storage device to prevent the increase in color of phenol according to claim 4, characterized by: The main shaft (9) is fixedly connected with a sun gear (10), and the mixing barrel (4) is fixedly connected with a ring gear (11); the rotating frame (12) is coaxially fixedly connected with a planet carrier, and the planet carrier is rotationally connected with a planet gear meshing with the sun gear (10) and the ring gear (11).

7. The storage device to prevent phenol color increase according to claim 1, characterized by: The tank body (2) is provided with a discharge pipe (1), and the discharge pipe (1) and the nitrogen pipe (8) are both provided with valves.