Apparatus for decoloring of bisphenol s and method of operation thereof

Abstract

This invention belongs to the technical field of general physical or chemical methods or apparatus, specifically relating to separation, and more particularly to a decolorizing device for bisphenol S and its operating method. In this decolorizing device for bisphenol S, when the drive shaft rotates at a slow speed, the liquid enters the decolorizing mechanism and flows from the front to the back of the decolorizing component, completing the decolorization. When the drive shaft rotates at a faster speed, the decolorizing component moves away from the drive shaft, at which point the liquid enters the decolorizing mechanism and flows from the back to the front, completing the decolorization. The direction of liquid flow through the decolorizing component is opposite to the direction of movement of the activated carbon within the decolorizing component due to centrifugal force, thus preventing the activated carbon from breaking at higher drive shaft speeds and ensuring the decolorization effect.

Description

Technical Field

[0001] This invention belongs to the field of general physical or chemical methods or apparatus technology, specifically relating to separation, and more particularly to a decolorization apparatus for bisphenol S and its operating method. Background Technology

[0002] Bisphenol S is a chemical substance mainly used as a monomer for synthesizing polysulfone resins. It can also be directly applied in coatings, leather modifiers, dye intermediates, and metal plating brighteners. Dihydroxydiphenyl sulfone possesses many excellent properties such as heat resistance, light resistance, and antioxidant properties, making it an important raw material for the synthesis of pesticides, dyes, auxiliaries, polymers, and various engineering plastics. In the production of bisphenol S, phenol and concentrated sulfuric acid are added to a reaction vessel for sulfonation. The resulting crude bisphenol S is then dissolved in water, adsorbed by activated carbon, and filtered to obtain refined bisphenol S. For example, CN217367252U discloses a decolorizing device; however, this device still has certain problems in use. Specifically, when the stirring speed increases, the particulate carbon particles break due to the combined effect of liquid pressure and the mechanical force generated by rotation, leading to a decrease in decolorization performance.

[0003] Therefore, due to the technical problem of particle carbon breakage caused by high stirring speed, it is necessary to design a new decolorization device for bisphenol S and its working method.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0005] This disclosure provides at least one decolorizing device for bisphenol S and its operating method.

[0006] In a first aspect, embodiments of this disclosure provide a decolorizing apparatus for bisphenol S, comprising: A tank body, in which a drive shaft is vertically inserted, and a plurality of decolorizing mechanisms are provided on the drive shaft. The drive shaft is configured to drive the decolorizing mechanisms to rotate, and the liquid in the tank body is decolorized after entering the decolorizing mechanisms. When the drive shaft rotates at a slow speed, the liquid enters the decolorization mechanism and flows from the front of the decolorization component to the back, thus completing the decolorization process. When the drive shaft rotates at a high speed, the decolorizing component moves away from the drive shaft. At this time, the liquid enters the decolorizing mechanism and flows from the back of the decolorizing component to the front, thus completing the decolorization.

[0007] In one optional embodiment, the decolorization mechanism includes: a housing; The outer shell is connected to the drive shaft. A decolorizing component is slidably disposed inside the outer shell. The decolorizing component is filled with activated carbon. Several through holes are opened on the front and back of the decolorizing component. The top surface of the decolorizing component is in contact with the inner top surface of the outer shell, and the bottom surface of the decolorizing component is in contact with the inner bottom surface of the outer shell; The front of the outer casing has a liquid inlet hole communicating with its interior, and the back of the outer casing has a liquid outlet hole communicating with its interior. The liquid outlet is located near the drive shaft, and the liquid inlet is located away from the liquid outlet.

[0008] In one optional embodiment, a first baffle is vertically arranged on the back of the decolorizing component. The first baffle is located on the back of the decolorizing component near the drive shaft. The top surface of the first baffle contacts the inner top surface of the housing, and the bottom surface of the first baffle contacts the inner bottom surface of the housing. The decolorizing component has a second baffle on its front side. The second baffle is located on the front side of the decolorizing component away from the drive shaft. The second baffle has liquid passage holes. The top surface of the second baffle contacts the inner top surface of the housing, and the bottom surface of the second baffle contacts the inner bottom surface of the housing.

[0009] In one optional embodiment, a limiting hole is provided on the decolorizing component, the limiting hole is located near the side of the decolorizing component away from the drive shaft, and a movable plate is slidably disposed in the limiting hole; The limiting hole is connected to the liquid passage hole.

[0010] In one optional embodiment, a plurality of top blocks are provided on the inner wall of the housing corresponding to the back side of the decolorizing component, the top blocks being close to the side of the housing away from the drive shaft.

[0011] In one alternative implementation, when the drive shaft rotates at a slower speed, the side of the decolorizing component near the drive shaft contacts the inner wall of the housing near the drive shaft, the liquid outlet is blocked by the decolorizing component, the movable plate extends from the back of the decolorizing component and contacts the inner wall of the housing, the liquid passage is opened, the liquid enters the housing from the liquid inlet and flows through the liquid hole, then flows from the front of the decolorizing component to the back and out, and flows out of the housing from the liquid outlet.

[0012] In one alternative implementation, when the drive shaft rotates at a high speed, the decolorizing component moves away from the drive shaft, the decolorizing component no longer blocks the liquid passage, the movable plate contacts the top block, the length of the movable plate extending from the back of the decolorizing component decreases, the length of the movable plate extending in the liquid passage increases, the liquid passage is closed, the liquid enters the housing from the inlet hole and flows from the back of the decolorizing component to the front and out of the housing from the outlet hole.

[0013] In one alternative implementation, when the drive shaft rotates at a high speed, the direction in which the liquid flows through the decolorizing component is opposite to the direction in which the activated carbon inside the decolorizing component moves under centrifugal force.

[0014] In one optional embodiment, a drive motor is provided on the top surface of the tank, and the drive motor is connected to a drive shaft to drive the drive shaft to rotate. The tank has a feed hole at the top and a discharge hole at the bottom.

[0015] Secondly, this disclosure also provides a method for operating the above-described decolorizing apparatus for bisphenol S, comprising: When the drive shaft rotates at a slow speed, the liquid enters the decolorization mechanism and flows from the front of the decolorization component to the back, thus completing the decolorization process. When the drive shaft rotates at a high speed, the decolorizing component moves away from the drive shaft. At this time, the liquid enters the decolorizing mechanism and flows from the back of the decolorizing component to the front, thus completing the decolorization.

[0016] The beneficial effects of this invention are that, in the decolorization device for bisphenol S, when the drive shaft speed is slow, the liquid enters the decolorization mechanism and flows from the front to the back of the decolorization component, completing the decolorization; when the drive shaft speed is fast, the decolorization component moves away from the drive shaft, and at this time, the liquid enters the decolorization mechanism and flows from the back to the front of the decolorization component, completing the decolorization. The direction of the liquid flowing through the decolorization component is opposite to the direction of movement of the activated carbon in the decolorization component due to centrifugal force, thereby avoiding the breakage of the activated carbon when the drive shaft speed is fast and ensuring the decolorization effect.

[0017] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1A schematic diagram of a decolorizing device for bisphenol S provided in an embodiment of this disclosure; Figure 2 A cross-sectional view of a decolorizing apparatus for bisphenol S provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of a decolorization mechanism provided in an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the state of the decolorizing component when the drive shaft rotates at a relatively high speed, provided by an embodiment of this disclosure. Figure 5 This is a schematic diagram of a decolorization component structure provided in an embodiment of the present disclosure; Figure 6 This is a schematic diagram of a bump structure provided in an embodiment of the present disclosure; Figure 7 This is a schematic diagram of a movable plate structure provided in an embodiment of this disclosure.

[0021] In the picture: Tank body 1, drive shaft 11, drive motor 12, feed port 13, discharge port 14; Decolorization mechanism 2, outer shell 21, liquid inlet 211, liquid outlet 212, top block 213, decolorization component 22, through hole 221, first baffle 222, second baffle 223, liquid passage hole 23, limiting hole 24, protrusion 241, movable plate 25, through groove 251, second spring 252. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0024] Bisphenol S is a chemical substance primarily used as a monomer in the synthesis of polysulfone resins. It can also be directly applied in coatings, leather modifiers, dye intermediates, and metal plating brighteners. Dihydroxydiphenyl sulfone possesses many excellent properties such as heat resistance, light resistance, and antioxidant properties, making it an important raw material for the synthesis of pesticides, dyes, auxiliaries, polymers, and various engineering plastics. In the bisphenol S production process, phenol and concentrated sulfuric acid are added to a reaction vessel for sulfonation. The resulting crude bisphenol S is then dissolved in water and adsorbed using activated carbon, followed by filtration to obtain refined bisphenol S. Increasing the stirring speed can cause the carbon particles to break due to the combined effects of liquid pressure and the mechanical force generated by rotation, leading to a decrease in decolorization performance.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figure 1 and Figure 2 As shown, at least one disclosed embodiment provides a decolorizing device for bisphenol S, comprising: a tank 1, a drive shaft 11 vertically inserted inside the tank 1, and a plurality of decolorizing mechanisms 2 disposed on the drive shaft 11. The drive shaft 11 is configured to drive the decolorizing mechanisms 2 to rotate, and the liquid in the tank 1 enters the decolorizing mechanism 2 and is decolorized; when the drive shaft 11 rotates at a slow speed, the liquid enters the decolorizing mechanism 2 and flows from the front to the back of the decolorizing component 22, completing the decolorization; when the drive shaft 11 rotates at a fast speed, the decolorizing component 22 moves away from the drive shaft 11, and the liquid enters the decolorizing mechanism 2 and flows from the back to the front of the decolorizing component 22, completing the decolorization. At this time, the direction of the liquid flowing through the decolorizing component 22 is opposite to the direction of movement of the activated carbon in the decolorizing component 22 due to centrifugal force, thereby avoiding the breakage of the activated carbon when the drive shaft 11 rotates at a fast speed and ensuring the decolorization effect.

[0028] In this embodiment, the front side of the decolorizing component 22 is the side of the decolorizing component 22 that is forward in the rotation direction when the drive shaft 11 drives the outer casing 21 to rotate.

[0029] like Figure 3As shown, in an optional embodiment, the decolorizing mechanism 2 includes: a housing 21; the housing 21 is connected to the drive shaft 11, a decolorizing component 22 is slidably disposed inside the housing 21, the decolorizing component 22 is filled with activated carbon, and a plurality of through holes 221 are provided on both the front and back sides of the decolorizing component 22; the top surface of the decolorizing component 22 contacts the inner top surface of the housing 21, and the bottom surface of the decolorizing component 22 contacts the inner bottom surface of the housing 21; a liquid inlet hole 211 communicating with the interior is provided on the front side of the housing 21, and a liquid outlet hole 212 communicating with the interior is provided on the back side of the housing 21; the liquid outlet hole 212 is disposed close to the drive shaft 11, and the liquid inlet hole 211 is disposed away from the liquid outlet hole 212.

[0030] In this embodiment, the rotation direction of the drive shaft 11 can be counterclockwise, specifically as follows: Figure 2 As shown in F.

[0031] In this embodiment, the liquid can flow through the decolorizing component 22 through the through hole 221, and the liquid is decolorized by the activated carbon in the decolorizing component 22.

[0032] In this embodiment, the inner top surface of the outer shell 21 may be provided with a strip groove along its length direction, and the top surface of the decolorizing component 22 may be provided with a slider, which is located in the strip groove to limit and guide the movement of the decolorizing component 22.

[0033] In this embodiment, a first spring is provided between the decolorizing component 22 and the inner wall of the housing 21 away from the drive shaft 11, or a first spring is provided between the inner wall of the strip groove and the slider (not shown in the figure), so that the decolorizing component 22 can be reset by the first spring after it moves.

[0034] like Figure 4 and Figure 5 As shown, in one optional embodiment, a first baffle 222 is vertically arranged on the back of the decolorizing component 22. The first baffle 222 is located on the back of the decolorizing component 22 near the drive shaft 11. The top surface of the first baffle 222 contacts the inner top surface of the outer shell 21, and the bottom surface of the first baffle 222 contacts the inner bottom surface of the outer shell 21. A second baffle 223 is arranged on the front of the decolorizing component 22. The second baffle 223 is located on the front of the decolorizing component 22 away from the drive shaft 11. A liquid passage hole 23 is formed on the second baffle 223. The top surface of the second baffle 223 contacts the inner top surface of the outer shell 21, and the bottom surface of the second baffle 223 contacts the inner bottom surface of the outer shell 21.

[0035] In this embodiment, when the drive shaft 11 rotates at a high speed, the decolorizing component 22 moves away from the drive shaft 11 due to the centrifugal force. The first baffle 222 moves to a position further away from the drive shaft 11 than the liquid outlet 212, so that the decolorizing component 22 no longer blocks the liquid outlet 212.

[0036] In this embodiment, in the initial state, the side of the decolorizing component 22 near the drive shaft 11 is in contact with the inner wall of the housing 21 near the drive shaft 11. At this time, the movable plate 25 extends from the back of the decolorizing component 22 and contacts the inner wall of the housing 21. The decolorizing component 22 part between the movable plate 25 and the first baffle 222 blocks the liquid outlet 212. The space between the back of the decolorizing component 22 and the inner wall of the housing 21 is surrounded by the movable plate 25 and the first baffle 222. After the liquid enters the housing 21, it can hardly flow into the space between the back of the decolorizing component 22 and the inner wall of the housing 21 from the gap between the movable plate 25 and the inner top and inner bottom surfaces of the housing 21. The liquid needs to flow from the front of the decolorizing component 22 to the back to flow through the decolorizing component 22 to complete the decolorization.

[0037] In this embodiment, the drive shaft 11 drives the decolorization mechanism 2 to rotate for a long time in order to complete the decolorization of the liquid.

[0038] like Figure 5 As shown, in an optional embodiment, the decolorizing component 22 has a limiting hole 24, which is located near the side of the decolorizing component 22 away from the drive shaft 11, and a movable plate 25 is slidably disposed in the limiting hole 24; the limiting hole 24 is connected to the liquid passage hole 23.

[0039] In this embodiment, there is only a small gap between the movable plate 25 and the inner top and bottom surfaces of the outer casing 21, so as to minimize the liquid flowing from the gap into the space between the back of the decolorizing component 22 and the inner wall of the outer casing 21 when the movable plate 25 extends from the back of the decolorizing component 22 and contacts the inner wall of the outer casing 21.

[0040] like Figure 6 and Figure 7 As shown, in this embodiment, the top of the movable plate 25 is provided with a through groove 251, and the inner top surface of the limiting hole 24 is provided with a protrusion 241. A second spring can be provided between the protrusion 241 and the inner wall of the through groove 251 so that the movable plate 25 can be reset by the second spring after it moves.

[0041] In one optional embodiment, a plurality of top blocks 213 are provided on the inner wall of the outer casing 21 corresponding to the back side of the decolorizing component 22, and the top blocks 213 are close to the side of the outer casing 21 away from the drive shaft 11.

[0042] In this embodiment, the end face of the movable plate 25 extending from the back of the decolorizing component 22 may be provided with an inclined surface, and the end face of the top block 213 near the drive shaft 11 may be provided with an inclined surface, so that the movable plate 25 can be better supported and moved by the top block 213 after contacting the top block 213.

[0043] In this embodiment, when the drive shaft 11 rotates at a high speed, the movable plate 25 moves after contacting the top block 213. The length of the movable plate 25 extending from the back of the decolorizing component 22 decreases, and the length of the movable plate 25 extending from the liquid passage 23 increases, thus closing the liquid passage 23. After entering the housing 21, the liquid cannot flow directly into the space between the front of the decolorizing component 22 and the inner wall of the housing 21. Since the movable plate 25 no longer contacts the inner wall of the housing 21, the liquid can flow into the space between the back of the movable plate 25 and the inner wall of the housing 21. After entering the housing 21 from the liquid inlet 211, the liquid flows from the back of the decolorizing component 22 into the front and out, and then flows out of the housing 21 from the liquid outlet 212.

[0044] In one alternative embodiment, when the drive shaft 11 rotates at a slower speed, the liquid flow direction is as follows: Figure 3 As shown in direction f1, the side of the decolorizing component 22 near the drive shaft 11 contacts the inner wall of the housing 21 near the drive shaft 11. The liquid outlet 212 is blocked by the decolorizing component 22. The movable plate 25 extends from the back of the decolorizing component 22 and contacts the inner wall of the housing 21. The liquid passage 23 is opened. The liquid enters the housing 21 from the liquid inlet 211 and flows through the liquid passage 23. Then it flows from the front of the decolorizing component 22 into the back and out, and flows out of the housing 21 from the liquid outlet 212.

[0045] In one alternative embodiment, when the drive shaft 11 rotates at a relatively high speed, the liquid flow direction is as follows: Figure 4 As shown in direction f2, the decolorizing component 22 moves away from the drive shaft 11, and the decolorizing component 22 no longer blocks the liquid passage 23. The movable plate 25 contacts the top block 213, and the length of the movable plate 25 extending from the back of the decolorizing component 22 decreases, while the length of the movable plate 25 extending from the liquid passage 23 increases, thus closing the liquid passage 23. The liquid enters the housing 21 from the liquid inlet 211 and flows from the back of the decolorizing component 22 to the front, and then flows out of the housing 21 from the liquid outlet 212.

[0046] In one alternative embodiment, when the drive shaft 11 rotates at a relatively high speed, the direction in which the liquid flows through the decolorizing component 22 is opposite to the direction in which the activated carbon inside the decolorizing component 22 moves under centrifugal force.

[0047] In this embodiment, the direction in which the liquid flows through the decolorizing component 22 is opposite to the direction in which the activated carbon inside the decolorizing component 22 moves under centrifugal force, so as to counteract the effect of centrifugal force on the activated carbon and avoid the activated carbon from breaking.

[0048] like Figure 1 As shown, in one optional embodiment, a drive motor 12 is provided on the top surface of the tank body 1, and the drive motor 12 is connected to the drive shaft 11 to drive the drive shaft 11 to rotate; a feed hole 13 is provided on the top of the tank body 1, and a discharge hole 14 is provided on the bottom of the tank body 1.

[0049] At least one other disclosed embodiment also provides a method of operation using the above-described decolorizing device for bisphenol S, comprising: when the drive shaft 11 rotates at a slow speed, liquid enters the decolorizing mechanism 2 and flows from the front side of the decolorizing component 22 in the decolorizing mechanism 2 and flows out from the back side, thus completing the decolorization; when the drive shaft 11 rotates at a fast speed, the decolorizing component 22 moves away from the drive shaft 11, at which time liquid enters the decolorizing mechanism 2 and flows from the back side of the decolorizing component 22 and flows out from the front side, thus completing the decolorization.

[0050] In summary, this decolorizing device for bisphenol S achieves decolorization by allowing liquid to enter the decolorizing mechanism 2 at a slower speed, flowing from the front to the back of the decolorizing component 22, thus completing the decolorization process. Conversely, when the drive shaft 11 rotates at a faster speed, the decolorizing component 22 moves away from the drive shaft 11, allowing liquid to enter the decolorizing mechanism 2 and flow from the back to the front, completing the decolorization process. The direction of liquid flow through the decolorizing component 22 is opposite to the direction of movement of the activated carbon within the decolorizing component 22 due to centrifugal force. This design effectively prevents activated carbon breakage when the drive shaft 11 rotates at a faster speed, ensuring a satisfactory decolorization effect.

[0051] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0052] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0053] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature and another element or feature illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0054] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0055] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A decolorizing device for bisphenol S, characterized in that, include: A tank (1) is provided with a drive shaft (11) vertically inserted inside the tank (1). Several decolorizing mechanisms (2) are provided on the drive shaft (11). The drive shaft (11) is configured to drive the decolorizing mechanism (2) to rotate. The liquid in the tank (1) is decolorized after entering the decolorizing mechanism (2). When the drive shaft (11) rotates at a slow speed, the liquid enters the decolorization mechanism (2) and flows from the front of the decolorization component (22) to the back, thus completing the decolorization process. When the drive shaft (11) rotates at a high speed, the decolorizing component (22) moves away from the drive shaft (11). At this time, the liquid enters the decolorizing mechanism (2) and flows from the back of the decolorizing component (22) to the front and out, thus completing the decolorization.

2. The decolorization apparatus for bisphenol S as described in claim 1, characterized in that, The decolorization mechanism (2) includes: a housing (21); The outer shell (21) is connected to the drive shaft (11). A decolorizing component (22) is slidably disposed inside the outer shell (21). The decolorizing component (22) is filled with activated carbon. Several through holes (221) are opened on the front and back of the decolorizing component (22). The top surface of the decolorizing component (22) is in contact with the inner top surface of the outer shell (21), and the bottom surface of the decolorizing component (22) is in contact with the inner bottom surface of the outer shell (21); The front of the outer shell (21) is provided with a liquid inlet (211) communicating with its interior, and the back of the outer shell (21) is provided with a liquid outlet (212) communicating with its interior. The liquid outlet (212) is located near the drive shaft (11), and the liquid inlet (211) is located away from the liquid outlet (212).

3. The decolorizing apparatus for bisphenol S as described in claim 2, characterized in that, The decolorizing component (22) has a first baffle (222) vertically arranged on its back side. The first baffle (222) is located on the back side of the decolorizing component (22) near the drive shaft (11). The top surface of the first baffle (222) contacts the inner top surface of the outer shell (21), and the bottom surface of the first baffle (222) contacts the inner bottom surface of the outer shell (21). The decolorizing component (22) has a second baffle (223) on its front side. The second baffle (223) is located on the front side of the decolorizing component (22) away from the drive shaft (11). The second baffle (223) has a liquid passage hole (23). The top surface of the second baffle (223) contacts the inner top surface of the outer shell (21), and the bottom surface of the second baffle (223) contacts the inner bottom surface of the outer shell (21).

4. The decolorizing apparatus for bisphenol S as described in claim 3, characterized in that, The decolorizing component (22) has a limiting hole (24) which is located near the side of the decolorizing component (22) away from the drive shaft (11). A movable plate (25) is slidably disposed in the limiting hole (24). The limiting hole (24) is connected to the liquid passage hole (23).

5. The decolorizing apparatus for bisphenol S as described in claim 4, characterized in that, The decolorizing component (22) has a plurality of top blocks (213) on the inner wall of the outer shell (21) corresponding to the back side. The top blocks (213) are located near the side of the outer shell (21) away from the drive shaft (11).

6. The decolorizing apparatus for bisphenol S as described in claim 5, characterized in that, When the drive shaft (11) rotates at a slow speed, the side of the decolorizing component (22) close to the drive shaft (11) contacts the inner wall of the housing (21) close to the drive shaft (11). The liquid outlet (212) is blocked by the decolorizing component (22). The movable plate (25) extends from the back of the decolorizing component (22) and contacts the inner wall of the housing (21). The liquid passage (23) opens. The liquid enters the housing (21) from the liquid inlet (211) and flows through the liquid outlet (23). Then it flows from the front of the decolorizing component (22) to the back and out, and flows out of the housing (21) from the liquid outlet (212).

7. The decolorizing apparatus for bisphenol S as described in claim 5, characterized in that, When the drive shaft (11) rotates at a high speed, the decolorizing component (22) moves away from the drive shaft (11), the decolorizing component (22) no longer blocks the liquid passage (23), the movable plate (25) contacts the top block (213), the length of the movable plate (25) extending from the back of the decolorizing component (22) decreases, the length of the movable plate (25) extending in the liquid passage (23) increases, the liquid passage (23) is closed, the liquid enters the housing (21) from the liquid inlet (211) and flows from the back of the decolorizing component (22) to the front and out, and flows out of the housing (21) from the liquid outlet (212).

8. The decolorizing apparatus for bisphenol S as described in claim 7, characterized in that, When the drive shaft (11) rotates at a high speed, the direction in which the liquid flows through the decolorizing component (22) is opposite to the direction in which the activated carbon in the decolorizing component (22) moves under centrifugal force.

9. The decolorizing apparatus for bisphenol S as described in claim 1, characterized in that, The top surface of the tank (1) is provided with a drive motor (12), which is connected to the drive shaft (11) to drive the drive shaft (11) to rotate. The tank (1) has a feed hole (13) at the top and a discharge hole (14) at the bottom.

10. A method of operating the decolorizing apparatus for bisphenol S as described in claim 1, characterized in that, include: When the drive shaft (11) rotates at a slow speed, the liquid enters the decolorization mechanism (2) and flows from the front of the decolorization component (22) to the back, thus completing the decolorization process. When the drive shaft (11) rotates at a high speed, the decolorizing component (22) moves away from the drive shaft (11). At this time, the liquid enters the decolorizing mechanism (2) and flows from the back of the decolorizing component (22) to the front and out, thus completing the decolorization.

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