A continuous decolorizing device for functional sugars

Abstract

The application relates to the technical field of functional sugar production and processing, in particular to a functional sugar continuous decolorizing device. The device comprises a decolorizing feed tank, a feed pipeline is arranged below the decolorizing feed tank, the feed pipeline is connected with an adsorption tower decolorizing system, a feed pump is arranged on the feed pipeline and located between the decolorizing feed tank and the adsorption tower decolorizing system, the adsorption tower decolorizing system is connected with a discharge pipeline, and the discharge pipeline is connected with a post-decolorizing tank; the adsorption tower decolorizing system comprises counterclockwise-circulation-connected carbon-supplementing adsorption towers, standby adsorption towers, feed adsorption towers and carbon-discharging adsorption towers, and an activated carbon regeneration system is further arranged; each adsorption tower is provided with feed valves and other valves, and a discharge distribution disc is further arranged; and the adsorption tower decolorizing system is provided with a circulating three-way valve and the like. The application reduces the equipment investment cost, reduces the contact time of sugar liquid and activated carbon, and avoids microbial pollution caused by long-time contact of sugar liquid and activated carbon.

Description

Technical Field

[0001] This utility model relates to the field of functional sugar production and processing technology, specifically to a continuous decolorization device for functional sugars. Background Technology

[0002] In the production of functional sugars, the color value of the system is high due to factors such as raw materials and processing. Decolorization is an essential step. Currently, most companies use powdered activated carbon for decolorization, followed by plate and frame filtration. During this process, waste such as activated carbon cake is generated. After improvements, some companies have started to use granular activated carbon for decolorization. However, granular activated carbon columns are large, and in order not to delay normal production during regeneration and carbon replenishment, a separate set of equipment usually needs to be built as a backup. The equipment investment is large, and the activated carbon inside is prone to the growth of microorganisms during the long-term soaking of sugar solution, which gives the syrup an unpleasant taste and flavor. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a continuous decolorization device for functional sugars to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a continuous decolorization device for functional sugars, including a decolorization feed tank, a feed pipe provided below the decolorization feed tank, the feed pipe being connected to an adsorption tower decolorization system, a feed pump provided on the feed pipe, the feed pump being located between the decolorization feed tank and the adsorption tower decolorization system, the adsorption tower decolorization system being connected to a discharge pipe, and the discharge pipe being connected to a decolorization post-tank; the adsorption tower decolorization system includes a carbon replenishment adsorption tower, a standby adsorption tower, a feed adsorption tower, and a carbon release adsorption tower connected in a counterclockwise cycle, and the adsorption tower decolorization system is equipped with an activated carbon regeneration system.

[0005] Preferably, the number of carbon replenishment adsorption tower, standby adsorption tower and carbon discharge adsorption tower is one, and the number of feed adsorption towers is not less than three. All adsorption towers, including carbon replenishment adsorption tower, standby adsorption tower, carbon discharge adsorption tower and feed adsorption tower, are equipped with feed valve, circulating feed valve, circulating discharge valve, discharge valve, carbon discharge valve and carbon replenishment valve.

[0006] Preferably, the activated carbon regeneration system includes a carbon discharge pipe, one end of which is connected to a carbon discharge valve, and the other end of which is connected to an activated carbon regeneration tower. The activated carbon regeneration tower is connected to a carbon replenishment tank via a carbon conveying pipe, and the carbon replenishment tank is connected to a carbon replenishment valve via a carbon replenishment pipe.

[0007] Preferably, all adsorption towers, including the carbon replenishment adsorption tower, the standby adsorption tower, the carbon discharge adsorption tower, and the feed adsorption tower, are equipped with a discharge distribution plate.

[0008] Preferably, the adsorption tower decolorization system is equipped with a circulation three-way valve, which is connected to the circulation feed valve, the discharge valve and the leftmost adsorption tower respectively.

[0009] Preferably, the adsorption tower decolorization system is equipped with an intelligent controller.

[0010] Preferably, the feed pump is a centrifugal pump.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention provides a functional sugar continuous decolorization device. Through a continuous decolorization device with a system circulation structure, the original large adsorption tower is evenly divided into multiple small adsorption towers. At the same time, there is no need to prepare a spare tower of the same size, which reduces equipment investment costs and reduces the contact time between sugar solution and activated carbon, avoiding microbial contamination caused by prolonged contact between sugar solution and activated carbon. It also precisely controls the regeneration of the failed part, reduces the regeneration amount, reduces energy consumption, and reduces the generation of product waste by using granular activated carbon. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; In the diagram, 1. Decolorization feed tank; 2. Feed pump; 3. Decolorization system of adsorption tower; 4. Feed valve; 5. Circulating feed valve; 6. Circulating discharge valve; 7. Discharge valve; 8. Circulating three-way valve; 9. Activated carbon regeneration tower; 10. Carbon replenishment tank; 11. Post-decolorization tank; 12. Carbon discharge valve; 13. Feed pipe; 14. Discharge pipe; 15. Carbon replenishment adsorption tower; 16. Standby adsorption tower; 17. Feed adsorption tower; 18. Carbon discharge adsorption tower; 19. Carbon replenishment valve; 20. Carbon discharge pipe; 21. Carbon conveying pipe; 22. Carbon replenishment pipe; 23. Discharge distribution plate; 24. Activated carbon regeneration system. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Example 1 The attached figure illustrates a specific embodiment of this utility model. This embodiment includes a decolorizing feed tank 1, with a feed pipe 13 located below the tank. A feed pump 2 pumps the sugar solution out, which then enters the adsorption tower decolorization system 3 through a feed valve 4. After decolorization, the solution exits through a discharge pipe 14 into a post-decolorization tank 11. This connection method allows the functional sugar solution to be smoothly transported from the decolorizing feed tank 1 to the adsorption tower decolorization system 3 for decolorization, and then exits through the discharge pipe 14 into the post-decolorization tank 11, achieving continuous transport and decolorization of the functional sugar solution and improving production efficiency.

[0017] Specifically, the decolorizing feed tank 1 is used to store the functional sugar solution to be decolorized. It is typically a sealed container, made of corrosion-resistant materials such as stainless steel to prevent contamination of the functional sugar solution. Its shape can be cylindrical, which facilitates solution storage and outflow. The feed pipe 13 connects the decolorizing feed tank 1 and the adsorption tower decolorization system 3, and is generally made of corrosion-resistant materials such as plastic or stainless steel. The diameter of the feed pipe 13 is determined based on the production scale and solution flow rate. The feed pump 2 is installed on the feed pipe 13; in this embodiment, the feed pump 2 is a centrifugal pump. Centrifugal pumps are characterized by simple structure, large flow rate, and high efficiency. They generate centrifugal force through the rotation of the impeller, transporting the functional sugar solution from the decolorizing feed tank 1 to the adsorption tower decolorization system 3. The centrifugal pump must be installed securely to the feed pipe 13 to prevent solution leakage.

[0018] The adsorption tower decolorization system 3 includes a carbon replenishment adsorption tower 15, a standby adsorption tower 16, a feed adsorption tower 17, and a carbon discharge adsorption tower 18.

[0019] The adsorption tower decolorization system includes one carbon replenishment adsorption tower, one standby adsorption tower, five feed adsorption towers, and one carbon discharge adsorption tower. These adsorption towers are connected in a counterclockwise cycle to achieve continuous decolorization.

[0020] The carbon replenishment adsorption tower 15 receives the regenerated activated carbon. The activated carbon regenerated by the activated carbon regeneration system 24 enters the carbon replenishment tank 10 and then enters the carbon replenishment adsorption tower 15 through the carbon replenishment pipe 22.

[0021] The feed adsorption tower 17 consists of five adsorption towers: the first feed adsorption tower Z31, the second feed adsorption tower Z32, the third feed adsorption tower Z33, the fourth feed adsorption tower Z34, and the fifth feed adsorption tower Z35. These five adsorption towers are connected in sequence. The first feed adsorption tower Z31 discharges through the discharge distribution plate 23. After distribution, the liquid flows through the circulation discharge valve 6 and then through the pipeline to the second feed adsorption tower Z32 via the circulation feed valve 5. And so on. The liquid is discharged from the top of the fifth feed adsorption tower Z35 through the discharge distribution plate 23 and then through the discharge valve 7 before entering the decolorization tank 11 through the pipeline.

[0022] When the first feed adsorption tower Z31 reaches its adsorption capacity limit, it needs to be regenerated and becomes a carbon discharge adsorption tower 18. It flows into the activated carbon regeneration system 24 through the carbon discharge valve 12 and the carbon discharge pipe 20 for regeneration. At the same time, the adsorption tower decolorization system 3 enters the circulation. The original second feed adsorption tower Z32 becomes the first feed adsorption tower Z31, and so on. Meanwhile, the standby adsorption tower 16 enters the system and becomes the fifth feed adsorption tower Z35. The carbon replenishment adsorption tower 15 completes carbon replenishment and becomes the standby adsorption tower 16.

[0023] The activated carbon regeneration system 24 includes a carbon discharge pipe 20, an activated carbon regeneration tower 9, a carbon conveying pipe 21, a carbon replenishment tank 10, and a carbon replenishment pipe 22. One end of the carbon discharge pipe 20 is connected to a carbon discharge valve 12, and the other end is connected to the activated carbon regeneration tower 9. When the carbon discharge valve 12 of the activated carbon adsorption tower 18 is opened, saturated activated carbon enters the activated carbon regeneration tower 9 through the carbon discharge pipe 20. The activated carbon regeneration tower 9 can regenerate the saturated activated carbon using methods such as high-temperature regeneration to restore its adsorption capacity. The regenerated activated carbon is conveyed to the carbon replenishment tank 10 through the carbon conveying pipe 21, and then the carbon replenishment tank 10 conveys the regenerated activated carbon to the carbon replenishment adsorption tower 15 through the carbon replenishment pipe 22, realizing the recycling of activated carbon, improving the utilization rate of activated carbon, and reducing production costs.

[0024] The discharge pipe 14 connects the adsorption tower decolorization system 3 and the decolorized tank 11, and is used to transport the decolorized functional sugar solution. The discharge pipe 14 is also made of corrosion-resistant material, and its diameter is determined according to the solution flow rate. The decolorized tank 11 is used to store the decolorized functional sugar solution, and its structure and material are similar to those of the decolorization feed tank.

[0025] All adsorption towers are equipped with a discharge distribution plate 23. The discharge distribution plate 23 allows the decolorized solution to flow out of the adsorption tower evenly, ensuring the uniformity of the solution quality. The discharge distribution plate typically has a porous structure and can be made of plastic or stainless steel.

[0026] The adsorption tower decolorization system 3 is equipped with a circulation three-way valve 8, which is connected to the circulation feed valve 6, the discharge valve 7, and the leftmost adsorption tower. The circulation three-way valve 8 enables the circulation of the solution. When the circulation feed valve is open, the solution can circulate between the adsorption towers, further improving the decolorization effect.

[0027] The adsorption tower decolorization system 3 is equipped with an intelligent controller. This intelligent controller can precisely control the feed pump, various valves, and other components, enabling automated operation of the unit. For example, it can automatically control the flow rate of the feed pump and the opening and closing of valves based on parameters such as pressure and liquid level within the adsorption tower, ensuring stable operation of the unit.

[0028] The usage process and working principle of this utility model are as follows: Through a continuous decolorization device with a cyclical system, the original large adsorption tower is evenly divided into multiple smaller adsorption towers. Simultaneously, there is no need to prepare a spare tower of the same size, thus reducing equipment investment costs. With the setup of a carbon replenishment adsorption tower 15, a spare adsorption tower 16, a feed adsorption tower 17, and a carbon removal adsorption tower 18, during operation, the feed liquid first enters the feed adsorption tower 17, which consists of multiple adsorption towers. The carbon replenishment adsorption tower 15, the spare adsorption tower 16, and the carbon removal adsorption tower 18 are ready for use. When the carbon in one of the feed adsorption towers 17 reaches its adsorption limit, the feed to that adsorption tower is cut off, and the spare adsorption tower is activated. 16 is added to the adsorption process. When the carbon adsorption in the adsorption tower reaches its limit, the carbon that has completed adsorption is released into the activated carbon regeneration system 24. The feed adsorption tower 17 becomes the carbon-discharging adsorption tower 18. The carbon-discharging adsorption tower 18, which has previously discharged carbon, is re-injected with activated carbon and becomes the carbon-replenishing adsorption tower 15. The carbon-replenishing adsorption tower 15, which has previously been replenished with carbon, can be reused and becomes the standby adsorption tower 16. Then, the cycle begins. Whenever the carbon in the feed adsorption tower reaches its adsorption limit, the above operation is performed once. The adsorption limit of the carbon in the adsorption tower can be detected and judged by a monitor, or it can be judged in advance by calculating the amount of feed liquid that can be adsorbed.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A continuous decolorization device for functional sugars, comprising a decolorization feed tank (1), characterized in that: A feed pipe (13) is provided below the decolorizing feed tank (1). The feed pipe (13) is connected to the adsorption tower decolorization system (3). A feed pump (2) is provided on the feed pipe (13). The feed pump (2) is located between the decolorizing feed tank (1) and the adsorption tower decolorization system (3). The adsorption tower decolorization system (3) is connected to the discharge pipe (14). The discharge pipe (14) is connected to the decolorized post-tank (11). The adsorption tower decolorization system (3) includes a carbon replenishing adsorption tower (15), a standby adsorption tower (16), a feed adsorption tower (17), and a carbon release adsorption tower (18) connected in a counterclockwise cycle. The adsorption tower decolorization system (3) is equipped with an activated carbon regeneration system (24).

2. The continuous decolorization device for functional sugars according to claim 1, characterized in that: The number of carbon replenishing adsorption tower (15), standby adsorption tower (16) and carbon discharging adsorption tower (18) is one, and the number of feeding adsorption tower (17) is not less than three. All adsorption towers of the carbon replenishing adsorption tower (15), standby adsorption tower (16), carbon discharging adsorption tower (18) and feeding adsorption tower (17) are equipped with a feed valve (4), a circulating feed valve (5), a circulating discharge valve (6), a discharge valve (7), a carbon discharging valve (12) and a carbon replenishing valve (19).

3. The continuous decolorization device for functional sugars according to claim 1, characterized in that: The activated carbon regeneration system (24) includes a carbon discharge pipe (20), one end of which is connected to a carbon discharge valve (12), and the other end of which is connected to an activated carbon regeneration tower (9). The activated carbon regeneration tower (9) is connected to a carbon replenishment tank (10) via a carbon conveying pipe (21), and the carbon replenishment tank (10) is connected to a carbon replenishment valve (19) via a carbon replenishment pipe (22).

4. The continuous decolorization device for functional sugars according to claim 1, characterized in that: All adsorption towers of the carbon replenishment adsorption tower (15), the standby adsorption tower (16), the carbon discharge adsorption tower (18), and the feed adsorption tower (17) are equipped with a discharge distribution plate (23).

5. The continuous decolorization device for functional sugars according to claim 1, characterized in that: The adsorption tower decolorization system (3) is equipped with a circulation three-way valve (8), which is connected to the circulation feed valve (5), the discharge valve (7) and the leftmost adsorption tower respectively.

6. The continuous decolorization device for functional sugars according to claim 1, characterized in that: The adsorption tower decolorization system (3) is equipped with an intelligent controller.

7. The continuous decolorization device for functional sugars according to claim 1, characterized in that: The feed pump (2) is a centrifugal pump.

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