A solution decolorizing device

Abstract

The utility model provides a kind of solution decolorization device, including decolorization jar, the top of decolorization jar is equipped with liquid inlet pipe, the side bottom of decolorization jar is equipped with liquid outlet pipe, the inside of decolorization jar is equipped with several filter screens from top to bottom in turn, active carbon is placed on the filter screen, one side of decolorization jar is equipped with circulating pump, the input of circulating pump is equipped with suction tube, the suction tube is communicated with the inner bottom of decolorization jar, the output of circulating pump is equipped with backwater pipe, the end of backwater pipe is communicated with the inner top of decolorization jar, the other side of decolorization jar is equipped with several cleaning holes matched with the filter screen. The utility model has the beneficial effects as follows, by the design of plugging mechanism and limiting piece, the lactulose concentrated solution can be treated by internal decolorization, and the active carbon used for decolorization filtration can be quickly replaced, the convenience of decolorization device is improved.

Description

Technical Field

[0001] This invention relates to a solution decolorization device, belonging to the field of lactulose concentrated solution decolorization technology. Background Technology

[0002] Lactulose is produced by the isomerization of lactose under alkaline conditions. This reaction inevitably produces some side reactions and decomposition products, which may be colored, typically yellow to brownish-yellow.

[0003] Therefore, it is necessary to decolorize the concentrated lactulose solution. The decolorization process can not only remove colored substances, but also adsorb and remove other soluble organic impurities, odor substances, and precursor substances that may cause the product to continue to change color during storage. This helps to improve the chemical purity and long-term stability of the product and extend its shelf life. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a solution decolorization device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A solution decolorization device includes a decolorization tank. The top of the decolorization tank has an inlet pipe, and the bottom side of the decolorization tank has an outlet pipe. Inside the decolorization tank, several filter screens are arranged from top to bottom, and activated carbon is placed on each filter screen. A circulation pump is installed on one side of the decolorization tank. The input end of the circulation pump has a suction pipe that communicates with the bottom of the decolorization tank. The output end of the circulation pump has a return water pipe that communicates with the top of the decolorization tank. The other side of the decolorization tank has several cleaning holes that cooperate with the filter screens. A sealing plate is installed in each cleaning hole. A sealing mechanism that cooperates with the sealing plate is provided on the outside of the decolorization tank.

[0007] Furthermore, the sealing mechanism includes two guide arc plates symmetrically arranged on the outer surface of the decolorizing tank. The two guide arc plates are respectively located on the upper and lower sides of the sealing plate. An arc-shaped groove is opened on the opposite side of each of the two guide arc plates. A slider is slidably connected in the arc-shaped groove. An abutment plate is fixed between the sliders on both sides. The inner wall of the abutment plate abuts against the outer surface of several sealing plates. A fixing block is fixed on the outer surface of the guide arc plate and on the side of the arc-shaped groove. Bolt holes are opened on the fixing block and the outer surface of the abutment plate. The two bolt holes are fixed together by bolts. A limiting member is provided at the bottom of one side of the outer surface of the abutment plate.

[0008] Furthermore, the limiting component includes a fixed base fixed to the bottom side of the abutment plate, the fixed base having a movable groove at the top, a positioning groove at the top of one side of the movable groove, a through hole at the bottom of the movable groove, a limiting plate vertically slidably connected in the through hole, and a handle rotatably connected to the top of the limiting plate, the handle being adapted to both the movable groove and the positioning groove.

[0009] Furthermore, solenoid valves are provided at the connection points of the inlet pipe, the outlet pipe, the suction pipe, and the return water pipe with the decolorization tank.

[0010] Furthermore, the inner wall of the abutment plate is adapted to the outer circumferential surface of the decolorization tank.

[0011] Furthermore, the inner outer surface of the sealing plate is provided with a sealing gasket that mates with the cleaning hole.

[0012] Furthermore, the mesh size of the filter screens on the three screens decreases from top to bottom.

[0013] The beneficial effects of this utility model are:

[0014] Thanks to the design of the sealing mechanism, when it is necessary to replace the activated carbon inside the decolorizing tank, the bolts between the fixing block and the abutment plate can be removed. Then, the abutment plate can be pushed to slide in an arc on the guide arc plate. The abutment plate will slide off from the outside of the sealing plate. At this time, the three sealing plates can be removed, and the activated carbon located on the filter screen inside the decolorizing tank can be removed through the cleaning hole for replacement.

[0015] By designing the limiting component, in order to ensure the stable operation of activated carbon replacement and cleaning, when the abutment plate slides arc-shaped to the side of the guide arc plate, the handle can be removed from the positioning groove and rotated to an angle that matches the movable groove. Then, the handle is released, and the handle descends into the movable groove. The limiting plate at the bottom of the handle can descend to the side of the bottom guide arc plate. The limiting plate and the side wall of the guide arc plate are used to limit and fix the abutment plate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a solution decolorization device according to the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of a solution decolorization device according to the present invention. Figure 2 ;

[0019] Figure 3 This is a partial structural schematic diagram of a solution decolorization device according to the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the decolorization tank in a solution decolorization device according to the present invention;

[0021] Figure 5 This is a schematic diagram of the sealing plate structure of a solution decolorization device according to the present invention;

[0022] Figure 6 This is a schematic diagram of the abutment plate structure of a solution decolorization device according to the present invention;

[0023] Figure 7 This is a schematic diagram of the connection structure between the abutment plate and the limiting member of a solution decolorization device according to this utility model;

[0024] Figure 8 This is a schematic diagram of the limiting component structure of a solution decolorization device according to the present invention.

[0025] In the diagram, 1. Decolorization tank; 2. Inlet pipe; 3. Filter screen; 4. Outlet pipe; 5. Circulation pump; 6. Return water pipe; 7. Sealing plate; 8. Guide arc plate; 9. Fixing block; 10. Abutment plate; 11. Sliding block; 12. Bolt hole; 13. Fixing seat; 14. Movable groove; 15. Positioning groove; 16. Handle; 17. Limiting plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-8This utility model provides a solution decolorization device, including a decolorization tank 1. The top of the decolorization tank 1 has an inlet pipe 2, and the bottom side of the decolorization tank 1 has an outlet pipe 4. Inside the decolorization tank 1, several filter screens 3 are arranged sequentially from top to bottom, with the mesh size of the three filter screens 3 decreasing from top to bottom. Activated carbon is placed on each filter screen 3. A circulation pump 5 is installed on one side of the decolorization tank 1. The input end of the circulation pump 5 has a suction pipe connected to the bottom of the decolorization tank 1. The output end of the circulation pump 5 has a return water pipe 6, the end of which is connected to the top of the decolorization tank 1. Several cleaning holes that cooperate with the filter screens 3 are opened on the other side of the decolorization tank 1. A sealing plate 7 is installed in each cleaning hole, and the inner and outer surfaces of the sealing plate 7 are provided with a surface corresponding to the cleaning hole. The decolorizing tank 1 is equipped with a sealing gasket, and a sealing mechanism that cooperates with the sealing plate 7 is provided on the outside of the decolorizing tank 1. In use, activated carbon is placed on the three-layer filter screen 3 through the cleaning hole. Then, the concentrated lactulose solution is poured into the decolorizing tank 1 through the liquid inlet pipe 2. The activated carbon has a huge specific surface area and rich microporous structure, which can efficiently capture and remove pigment molecules and other impurities in the concentrated lactulose solution through physical adsorption. In order to ensure that the concentrated lactulose solution is in full contact with the activated carbon, the concentrated lactulose solution that has fallen to the bottom of the decolorizing tank 1 can be circulated to the top of the decolorizing tank 1 through the circulation pump 5, and then decolorized again with the activated carbon. After the circulation pump 5 is started quantitatively several times, the solenoid valves on the suction pipe and the return water pipe 6 are closed, and the solenoid valve on the outlet pipe 4 is opened. Then, the decolorized concentrated lactulose solution is discharged through the outlet pipe 4.

[0028] See Figures 1-3 , Figure 6The sealing mechanism includes two guide arc plates 8 symmetrically arranged on the outer surface of the decolorizing tank 1. The two guide arc plates 8 are located on the upper and lower sides of the sealing plate 7, respectively. An arc-shaped groove is formed on one side of each of the two guide arc plates 8. A slider 11 is slidably connected within the arc-shaped groove. An abutment plate 10 is fixed between the two sliders 11. The inner wall of the abutment plate 10 abuts against the outer surfaces of several sealing plates 7. A fixing block 9 is fixed on the outer surface of the guide arc plate 8 and located on the side of the arc-shaped groove. Bolt holes 12 are formed on both the fixing block 9 and the outer surface of the abutment plate 10. The bolt holes 12 are fixed together by bolts. A limiting member is provided on the bottom of one side of the outer surface of the abutment plate 10. The inner wall of the abutment plate 10 is adapted to the outer circumferential surface of the decolorizing tank 1. Through the design of the sealing mechanism, when it is necessary to replace the activated carbon inside the decolorizing tank 1, the bolts between the fixing block 9 and the abutment plate 10 can be removed. Then, the abutment plate 10 is pushed to slide in an arc on the guide arc plate 8. The abutment plate 10 will slide off from the outside of the sealing plate 7. At this time, the three sealing plates 7 can be removed, and the activated carbon located on the filter screen 3 inside the decolorizing tank 1 can be removed through the cleaning hole for replacement.

[0029] See Figure 7 and Figure 8 The limiting component includes a fixed base 13 fixed to the bottom side of the abutment plate 10. The fixed base 13 has a movable groove 14 on its top and a positioning groove 15 on one side of the top of the movable groove 14. The bottom of the movable groove 14 has a through hole. A limiting plate 17 is vertically slidably connected in the through hole. A handle 16 is rotatably connected to the top of the limiting plate 17. The handle 16 is adapted to both the movable groove 14 and the positioning groove 15. Through the design of the limiting component, in order to ensure the stable operation of activated carbon replacement and cleaning, when the abutment plate 10 slides arc-shaped to the side of the guide arc plate 8, the handle 16 can be taken out from the positioning groove 15 and rotated to an angle adapted to the movable groove 14. Then, the handle 16 is released, and the handle 16 descends into the movable groove 14. The limiting plate 17 at the bottom of the handle 16 can descend to the side of the bottom guide arc plate 8. The limiting and fixing of the abutment plate 10 is achieved by the abutment and limiting between the limiting plate 17 and the side wall of the guide arc plate 8.

[0030] The inlet pipe 2, the outlet pipe 4, the suction pipe and the return water pipe 6 are all equipped with solenoid valves (not shown in the figure) at the connection points with the decolorization tank 1; the solenoid valves enable electromagnetic control of the connection between the four pipes and the decolorization tank 1.

[0031] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0032] In use, activated carbon is placed onto the three-layer filter screen 3 through the cleaning hole. Then, concentrated lactulose solution is poured into the decolorizing tank 1 through the inlet pipe 2. Activated carbon, with its large specific surface area and abundant microporous structure, can efficiently capture and remove pigment molecules and other impurities in the concentrated lactulose solution through physical adsorption. To ensure sufficient contact between the concentrated lactulose solution and the activated carbon, the concentrated lactulose solution that has descended to the bottom of the decolorizing tank 1 can be circulated back to the top of the decolorizing tank 1 by the circulation pump 5 for further decolorization with the activated carbon. After the circulation pump 5 has been started several times, the solenoid valves on the suction pipe and return water pipe 6 are closed, and the solenoid valve on the outlet pipe 4 is opened. The decolorized concentrated lactulose solution is then discharged through the outlet pipe 4. When it is necessary to replace the activated carbon inside the decolorizing tank 1, the solid... The bolts between the fixing block 9 and the abutment plate 10 are removed. Then, the abutment plate 10 is pushed to slide in an arc on the guide arc plate 8. The abutment plate 10 will slide off from the outside of the sealing plate 7. At this time, the three sealing plates 7 can be removed, and the activated carbon located on the filter screen 3 in the decolorization tank 1 can be removed through the cleaning hole for replacement. In order to ensure the stable progress of the activated carbon replacement and cleaning work, when the abutment plate 10 slides in an arc to the side of the guide arc plate 8, the handle 16 can be taken out from the positioning groove 15 and rotated to an angle that matches the movable groove 14. Then, the handle 16 is released, and the handle 16 descends into the movable groove 14. The limiting plate 17 at the bottom of the handle 16 can descend to the side of the bottom guide arc plate 8. The abutment plate 10 is fixed by the abutment limit between the limiting plate 17 and the side wall of the guide arc plate 8.

[0033] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A solution decolorization device, characterized in that, The decolorizing tank (1) includes an inlet pipe (2) at the top and an outlet pipe (4) at the bottom side. Inside the decolorizing tank (1), several filter screens (3) are arranged from top to bottom. Activated carbon is placed on the filter screens (3). A circulation pump (5) is installed on one side of the decolorizing tank (1). The input end of the circulation pump (5) is provided with a suction pipe, which is connected to the bottom inside the decolorizing tank (1). The output end of the circulation pump (5) is provided with a return water pipe (6), the end of which is connected to the top inside the decolorizing tank (1). Several cleaning holes that cooperate with the filter screens (3) are opened on the other side of the decolorizing tank (1). A sealing plate (7) is installed in the cleaning hole. A sealing mechanism that cooperates with the sealing plate (7) is provided on the outside of the decolorizing tank (1).

2. The solution decolorization device according to claim 1, characterized in that, The sealing mechanism includes two guide arc plates (8) symmetrically arranged on the outer surface of the decolorizing tank (1). The two guide arc plates (8) are located on the upper and lower sides of the sealing plate (7), respectively. An arc-shaped groove is provided on the opposite side of the two guide arc plates (8). A slider (11) is slidably connected in the arc-shaped groove. An abutment plate (10) is fixed between the sliders (11) on both sides. The inner wall of the abutment plate (10) abuts against the outer surface of several sealing plates (7). A fixing block (9) is fixed on the outer surface of the guide arc plate (8) and on the side of the arc-shaped groove. Bolt holes (12) are provided on the fixing block (9) and the outer surface of the abutment plate (10). The two bolt holes (12) are fixed together by bolts. A limiting member is provided at the bottom of one side of the outer surface of the abutment plate (10).

3. The solution decolorization device according to claim 2, characterized in that, The limiting component includes a fixed base (13) fixed to the bottom side of the abutment plate (10). The fixed base (13) has a movable groove (14) on its top. A positioning groove (15) is provided on the top side of the movable groove (14). A through hole is provided at the bottom inside the movable groove (14). A limiting plate (17) is vertically slidably connected inside the through hole. A handle (16) is rotatably connected to the top of the limiting plate (17). The handle (16) is adapted to both the movable groove (14) and the positioning groove (15).

4. The solution decolorization device according to claim 3, characterized in that, Solenoid valves are provided at the connection points of the inlet pipe (2), the outlet pipe (4), the suction pipe and the return water pipe (6) with the decolorization tank (1).

5. The solution decolorization device according to claim 4, characterized in that, The inner wall of the abutment plate (10) is adapted to the outer circumferential surface of the decolorizing tank (1).

6. The solution decolorization device according to claim 5, characterized in that, The inner outer surface of the sealing plate (7) is provided with a sealing gasket that matches the cleaning hole.

7. The solution decolorization device according to claim 6, characterized in that, The mesh size of the filter holes on the three filter screens (3) decreases from top to bottom.

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