Convenient-to-feed sulfonation kettle for bisphenol S production

Abstract

The utility model relates to the technical field of bisphenol S production, and particularly discloses a sulfonation kettle convenient to feed for bisphenol S. The sulfonation kettle comprises a sulfonation reaction kettle body, a sulfuric acid feed port is formed in the right end of the upper end face of the sulfonation reaction kettle body, and a first motor is installed in the middle of the upper end face of the sulfonation reaction kettle body. The output end of the first motor penetrates through the upper end face of the sulfonation reaction kettle and is provided with a stirring rod, the upper end face of the sulfonation reaction kettle communicates with a feeding pipe located on the left side of the first motor, a material guiding pipe is installed at the other end of the feeding pipe, and a discharging opening located in the feeding pipe is formed in the outer side wall of the material guiding pipe in a penetrating mode; by controlling the discharging amount of phenol, quantitative phenol can be conveniently added into the reaction kettle, the phenol can be dispersed and scattered into the reaction kettle, accumulation of the phenol is avoided, the stirring and mixing time is shortened, the reaction rate of the phenol is increased, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bisphenol S production, in particular to a sulfonation kettle for bisphenol S production which is convenient for feeding. Background Art

[0002] Bisphenol S is a chemical substance primarily used as a monomer in the synthesis of polysulfone resins. It can also be directly used in coatings, leather modifiers, dye intermediates, and metal electroplating brighteners. Bisphenol S is an important synthetic raw material for pesticides, dyes, additives, and polymer compounds. During the bisphenol S production process, phenol and concentrated sulfuric acid are added to a reactor for a sulfonation reaction. The reaction liquid must be continuously stirred to ensure full reaction.

[0003] Since phenol is a solid crystal at room temperature during the current production of bisphenol S, it is typically added manually to a reactor. For example, Chinese Patent Publication No. CN215783324U discloses a special scraper-type reactor for producing bisphenol S for low-color thermal paper. When the temperature inside the tank reaches a certain value, a temperature sensor transmits data to a control box, which issues a command to illuminate a warning light. This allows personnel to control the addition of phenol from the storage tank into the tank in batches, allowing the phenol to fully react inside the tank.

[0004] In actual use, the above-mentioned device requires manual feeding of phenol into the reactor in batches, which is cumbersome and inconvenient. Furthermore, it is difficult to distribute the phenol into the reactor during feeding, which results in easy accumulation of phenol and prolonged stirring and mixing time of the stirring rod, resulting in low production efficiency. Therefore, it is necessary to provide a sulfonation reactor for bisphenol S production that is convenient for feeding to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a sulfonation kettle for bisphenol S production with convenient feeding. The utility model has the characteristics of conveniently adding a fixed amount of phenol into the reactor by controlling the amount of phenol discharged, and can disperse the phenol in the reactor to avoid phenol accumulation, shorten the stirring and mixing time, thereby accelerating the reaction rate of phenol and improving production efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sulfonation kettle for convenient feeding of bisphenol S production, comprising a sulfonation reactor, a sulfuric acid feed port is installed at the right end of the upper end surface of the sulfonation reactor, and a first motor is installed in the middle of the upper end surface, the output end of the first motor passes through the upper end surface of the sulfonation reactor and is installed with a stirring rod, the upper end surface of the sulfonation reactor is connected with a feed pipe located on the left side of the first motor, the other end of the feed pipe is installed with a guide pipe, the outer side wall of the guide pipe is penetrated by a feed port located inside the feed pipe, and the other end is connected with a feed hopper, a second motor is installed at the bottom of the outer side wall of the feed hopper, the output end of the second motor passes through the outer side wall of the feed hopper and is installed with a rotating shaft, and the outer side wall of the rotating shaft is installed with a plurality of dividing plates slidably connected to the inner wall of the feed hopper;

[0007] The upper end face of the sulfonation reactor is equipped with a fixed plate located on the right side of the first motor, and the inner top end face of the fixed plate is equipped with two first electric push rods distributed on the left and right, and the output ends of the two first electric push rods are equipped with a mounting plate, and the bottom of the mounting plate is equipped with a third motor, and the output end of the third motor is equipped with a rotating rod, the bottom of the rotating rod passes through the outer wall of the material guide pipe and extends to the inside of the feed pipe through the discharge port, and the bottom of the rotating rod is equipped with a spreading plate, the upper end face of the spreading plate is abutted against a fixed cylinder, and a telescopic sleeve is installed between the top of the fixed cylinder and the material guide pipe.

[0008] In order to facilitate the delivery of phenol to the spreading plate, as a preferred embodiment of the sulfonation kettle for convenient feeding of bisphenol S production of the present invention, the telescopic sleeve and the fixed cylinder are both located on the outside of the rotating rod.

[0009] In order to facilitate the opening and closing of the feed pipe, a sulfonation kettle with convenient feeding for bisphenol S production is preferably used in the present invention. A second electric push rod is installed at the left end of the upper end face of the sulfonation reactor, and a clamping plate is installed at the output end of the second electric push rod, which passes through the outer wall of the feed pipe and is slidably connected to the outer wall of the feed pipe. A clamping groove is opened on the left side wall inside the feed pipe, and the right end of the clamping plate is located in the clamping groove.

[0010] In order to increase the stability of the feed hopper, a sulfonation kettle for convenient feeding of bisphenol S production according to the present invention is preferably provided with a support plate installed on the left side wall of the sulfonation reactor, and a plurality of legs fixedly mounted on the bottom end surface of the feed hopper are installed on the support plate and the top surface of the sulfonation reactor.

[0011] In order to facilitate stable rotation of the rotating shaft, as a preferred embodiment of the sulfonation kettle for bisphenol S production with convenient feeding of the present invention, the end of the rotating shaft away from the second motor is movably connected to the inner wall of the feed hopper through the rotating shaft.

[0012] In order to facilitate the sealing between the rotating rod and the material guide pipe, as a preferred embodiment of the sulfonation kettle for convenient feeding of bisphenol S production of the present invention, the outer wall of the rotating rod and the inner wall of the material guide pipe are mechanically sealed.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] When the utility model is used for phenol feeding, the second motor is started to rotate the rotating shaft to drive the multiple material distribution plates to rotate, so that a certain amount of phenol falls on the scattering disc through the guide pipe, and then the second electric push rod is started to drive the clamping plate to move, and the feeding pipe is opened, and then the two first electric push rods are started to push the third motor, the rotating rod and the scattering disc to move, so that the scattering disc moves into the sulfonation reactor, and then the third motor is started to rotate the rotating rod to drive the scattering disc to rotate, so that the scattering disc scatters the phenol to the surrounding areas, so as to avoid the phenol from piling up. Then the staff passes the sulfuric acid feed port Sulfuric acid is added into the interior of the sulfonation reaction kettle to facilitate the sulfonation reaction. During the reaction, when phenol is added into the sulfonation reaction kettle, a certain amount of phenol is transported to the spreading plate again, the clamping plate is moved to open the feeding pipe, and the spreading plate is adjusted to move it into the interior of the sulfonation reaction kettle, so that the phenol is dispersed and scattered in the sulfonation reaction kettle. Therefore, by controlling the amount of phenol discharged, it is convenient to add a certain amount of phenol into the reactor, and the phenol can be dispersed and scattered in the reactor, thereby avoiding phenol accumulation, shortening the stirring and mixing time, thereby accelerating the reaction rate of the phenol and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall cross-sectional structural diagram of the utility model;

[0016] Figure 2 This is a structural diagram of the feed hopper of the present utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0018] Figure 4 This is a top view of the structure of the spreading tray of the present utility model.

[0019] In the figure: 1. Sulfonation reactor; 101. Feed pipe; 102. First motor; 103. Stirring rod; 2. Material guide pipe; 201. Feeding port; 3. Feed hopper; 301. Rotating shaft; 3011. Second motor; 302. Material distributor plate; 303. Support leg; 304. Support plate; 4. Fixed plate; 401. First electric push rod; 402. Mounting plate; 5. Third motor; 501. Rotating rod; 6. Spreading tray; 7. Telescopic sleeve; 701. Fixed cylinder; 8. Card plate; 801. Card slot; 802. Second electric push rod. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 , a sulfonation kettle with convenient feeding for bisphenol S production, comprising a sulfonation reactor 1, a sulfuric acid feed port is installed at the right end of the upper end surface of the sulfonation reactor 1, and a first motor 102 is installed in the middle of the upper end surface, the output end of the first motor 102 passes through the upper end surface of the sulfonation reactor 1 and is installed with a stirring rod 103, the upper end surface of the sulfonation reactor 1 is connected with a feed pipe 101 located on the left side of the first motor 102, the other end of the feed pipe 101 is installed with a guide pipe 2, the outer side wall of the guide pipe 2 is penetrated by a feed port 201 located inside the feed pipe 101, and the other end is connected with a feed hopper 3, a second motor 3011 is installed at the bottom of the outer side wall of the feed hopper 3, the output end of the second motor 3011 passes through the outer side wall of the feed hopper 3 and is installed with a rotating shaft 301, and the outer side wall of the rotating shaft 301 is installed with a plurality of dividing plates 302 slidably connected to the inner wall of the feed hopper 3;

[0021] The upper end face of the sulfonation reactor 1 is installed with a fixed plate 4 located on the right side of the first motor 102, and the inner top surface of the fixed plate 4 is installed with two first electric push rods 401 distributed on the left and right, and the output ends of the two first electric push rods 401 are installed with a mounting plate 402, and the bottom of the mounting plate 402 is installed with a third motor 5, and the output end of the third motor 5 is installed with a rotating rod 501, and the bottom of the rotating rod 501 passes through the outer wall of the material guide pipe 2 and extends to the interior of the feed pipe 101 through the discharge port 201, and the bottom of the rotating rod 501 is installed with a spreading plate 6, and the upper end face of the spreading plate 6 is abutted against the fixed cylinder 701, and a telescopic sleeve 7 is installed between the top of the fixed cylinder 701 and the material guide pipe 2.

[0022] In this embodiment: when phenol is unloaded, the second motor 3011 is started to rotate the rotating shaft 301 and drive the multiple distribution plates 302 to rotate, so that a certain amount of phenol falls on the scattering tray 6 through the guide pipe 2, and then the second electric push rod 802 is started to drive the card plate 8 to move, and the feed pipe 101 is opened, and then the two first electric push rods 401 are started to push the third motor 5, the rotating rod 501 and the scattering tray 6 to move, so that the scattering tray 6 moves into the sulfonation reactor 1, and then the third motor 5 is started to rotate the rotating rod 501 and drive the scattering tray 6 to rotate, so that the scattering tray 6 scatters phenol to the surrounding areas to prevent the phenol from piling up. Then the staff adds sulfuric acid to the interior of the sulfonation reactor 1 through the sulfuric acid feed port to facilitate the sulfonation reaction. During the reaction, when phenol is added to the sulfonation reactor 1, a certain amount of phenol is transported to the spreading plate 6 again, and the clamping plate 8 is moved to open the feed pipe 101. By adjusting the position of the spreading plate 6 to move it to the interior of the sulfonation reactor 1, the phenol is scattered in the sulfonation reactor 1. Therefore, by controlling the amount of phenol discharged, it is convenient to add a certain amount of phenol into the reactor, and the phenol can be scattered in the reactor, avoiding phenol accumulation, shortening the stirring and mixing time, thereby accelerating the reaction rate of phenol and improving production efficiency.

[0023] As a technical optimization solution of the present invention, the telescopic sleeve 7 and the fixed cylinder 701 are both located outside the rotating rod 501 .

[0024] In this embodiment, the telescopic sleeve 7 and the fixed cylinder 701 are both located outside the rotating rod 501 , so as to facilitate the delivery of phenol to the spreading tray 6 .

[0025] As a technical optimization solution of the present invention, a second electric push rod 802 is installed at the left end of the upper end face of the sulfonation reactor 1, and the output end of the second electric push rod 802 is installed with a clamping plate 8 that passes through the outer wall of the feed pipe 101 and is slidably connected to the outer wall of the feed pipe 101. A clamping groove 801 is opened on the left side wall inside the feed pipe 101, and the right end of the clamping plate 8 is located in the clamping groove 801.

[0026] In this embodiment, by activating the second electric push rod 802 , the clamping plate 8 can be pushed away from the clamping slot 801 , thereby facilitating the opening of the feed tube 101 .

[0027] As a technical optimization solution of the present invention, a support plate 304 is installed on the left side wall of the sulfonation reactor 1, and a plurality of legs 303 fixedly installed on the bottom end surface of the feed hopper 3 are installed on the support plate 304 and the top surface of the sulfonation reactor 1.

[0028] In this embodiment, the support plate 304 is provided to support the legs 303 and the feed hopper 3 , thereby increasing the stability of the feed hopper 3 .

[0029] As a technical optimization solution of the present invention, one end of the rotating shaft 301 away from the second motor 3011 is movably connected to the inner wall of the feed hopper 3 through the rotating shaft.

[0030] In this embodiment, one end of the rotating shaft 301 is movably connected to the inner wall of the feed hopper 3 so that the feed hopper 3 can rotate stably.

[0031] As a technical optimization solution of the present invention, a mechanical seal is provided between the outer wall of the rotating rod 501 and the inner wall of the material guiding tube 2 .

[0032] In this embodiment, a mechanical seal is provided between the outer wall of the rotating rod 501 and the inner wall of the material guiding tube 2 , so that the connection between the rotating rod 501 and the material guiding tube 2 can be sealed.

[0033] Working principle: First, when using the device, first connect the device to the external power supply and controller, then pour phenol into the feed hopper 3, and when discharging phenol, by starting the second motor 3011, the rotating shaft 301 rotates to drive the multiple distribution plates 302 to rotate, so that a certain amount of phenol passes through the guide tube 2 along the telescopic sleeve 7 and the fixed cylinder 701 and falls on the spreading tray 6, and by starting the second electric push rod 802, the card plate 8 is away from the card slot 801, and the feed pipe 101 can be opened, and then the two first electric push rods 401 are started to push the third motor 5, the rotating rod 501 and the spreading tray 6 to move, and when the spreading tray 6 moves, the fixed cylinder 701 descends with the spreading tray 6 due to gravity and pulls the telescopic sleeve 7 to extend (when the telescopic sleeve 7 is extended to the maximum length, the bottom of the fixed cylinder 701 The scattering disc 6 is flush with the port at the bottom of the feed pipe 101), when the scattering disc 6 moves into the sulfonation reactor 1, the scattering disc 6 is separated from the fixed cylinder 701, and the third motor 5 is started at this time, so that the rotating rod 501 rotates to drive the scattering disc 6 to rotate, so that the scattering disc 6 scatters phenol to the surrounding areas to avoid phenol accumulation. Then the staff adds sulfuric acid to the interior of the sulfonation reactor 1 through the sulfuric acid feed port to facilitate the sulfonation reaction. In the process of the reaction, when phenol is added to the sulfonation reactor 1, a certain amount of phenol is transported to the scattering disc 6 again, and then the card plate 8 is moved to open the feed pipe 101, and the position of the scattering disc 6 is adjusted to move it to the interior of the sulfonation reactor 1, and the phenol is scattered and scattered on the sulfonation reactor 1, and the stirring of the stirring rod 103 is coordinated to allow the phenol and sulfuric acid to fully react.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sulfonation kettle for producing bisphenol S with convenient feeding, comprising a sulfonation reactor (1), wherein a sulfuric acid feed port is installed at the right end of the upper end surface of the sulfonation reactor (1), and a first motor (102) is installed in the middle of the upper end surface, the output end of the first motor (102) passes through the upper end surface of the sulfonation reactor (1) and is installed with a stirring rod (103), and the upper end surface of the sulfonation reactor (1) is connected to a feed pipe (101) located on the left side of the first motor (102), characterized in that: The other end of the feed pipe (101) is provided with a guide pipe (2), the outer wall of the guide pipe (2) is penetrated by a discharge port (201) located inside the feed pipe (101), and the other end is connected to a feed hopper (3), a second motor (3011) is installed at the bottom of the outer wall of the feed hopper (3), the output end of the second motor (3011) penetrates the outer wall of the feed hopper (3) and is provided with a rotating shaft (301), and the outer wall of the rotating shaft (301) is provided with a plurality of dividing plates (302) slidably connected to the inner wall of the feed hopper (3); The upper end face of the sulfonation reactor (1) is provided with a fixed plate (4) located on the right side of the first motor (102), and the inner top face of the fixed plate (4) is provided with two first electric push rods (401) distributed on the left and right, and the output ends of the two first electric push rods (401) are provided with a mounting plate (402), and the bottom of the mounting plate (402) is provided with a third motor (5), and the output end of the third motor (5) is provided with a rotating rod (501), and the bottom of the rotating rod (501) passes through the outer wall of the guide tube (2) and extends to the inside of the feed tube (101) through the discharge port (201), and the bottom of the rotating rod (501) is provided with a spreading disc (6), and the upper end face of the spreading disc (6) is in contact with a fixed cylinder (701), and a telescopic sleeve (7) is provided between the top of the fixed cylinder (701) and the guide tube (2).

2. The sulfonation kettle with convenient feeding for producing bisphenol S according to claim 1, characterized in that: The telescopic sleeve (7) and the fixed cylinder (701) are both located outside the rotating rod (501).

3. The sulfonation kettle with convenient feeding for producing bisphenol S according to claim 1, characterized in that: A second electric push rod (802) is installed at the left end of the upper end surface of the sulfonation reactor (1), and a clamping plate (8) is installed at the output end of the second electric push rod (802) that penetrates the outer wall of the feed pipe (101) and is slidably connected to the outer wall of the feed pipe (101). A clamping groove (801) is opened on the left side wall inside the feed pipe (101), and the right end of the clamping plate (8) is located in the clamping groove (801).

4. The sulfonation kettle with convenient feeding for producing bisphenol S according to claim 1, characterized in that: A support plate (304) is installed on the left side wall of the sulfonation reactor (1), and a plurality of legs (303) fixedly mounted on the bottom end surface of the feed hopper (3) are installed on the top surface of the support plate (304) and the sulfonation reactor (1).

5. The sulfonation kettle with convenient feeding for producing bisphenol S according to claim 1, characterized in that: One end of the rotating shaft (301) away from the second motor (3011) is movably connected to the inner side wall of the feed hopper (3) via the rotating shaft.

6. The sulfonation kettle with convenient feeding for producing bisphenol S according to claim 1, characterized in that: A mechanical seal is formed between the outer wall of the rotating rod (501) and the inner wall of the material guiding tube (2).

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