Alpha cyclodextrin concentration system

Abstract

The utility model belongs to the technical field of separation devices, and particularly relates to an alpha cyclodextrin concentration system which comprises an evaporation tower, a heating sleeve arranged on the outer side of the evaporation tower, a buffer tank connected with the evaporation tower, a heat exchange sleeve arranged on the outer side of the buffer tank, and a cooler, a low-temperature tank and a heat preservation tank sequentially connected with the buffer tank. The top of the evaporation tower and the top of the buffer tank are connected with compressor tanks, the bottoms of the compressor tanks are connected with heat exchange sleeves, the low-temperature tank and the heat preservation tank are connected with vacuum pumps, a heat preservation layer is arranged on the side of the heat preservation tank, and the bottom of each heat exchange sleeve is connected with the heat preservation layer. According to the device, the alpha cyclodextrin is gradually concentrated, so that the probability that the alpha cyclodextrin is decomposed and discolored under the high-temperature condition for a long time is reduced, the generated high-temperature steam is repeatedly utilized, and the waste of resources is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of separation device technology, specifically relating to an alpha cyclodextrin concentration system. Background Technology

[0002] Alpha-cyclodextrin consists of six glucose units linked end-to-end by α-1,4-glycosidic bonds, forming a truncated pyramidal cyclic structure. It is also known as α-CD or cyclohexadecimal. Due to its inclusion properties, alpha-cyclodextrin has wide applications in many fields, such as the inclusion of active ingredients, providing protection and masking effects, protecting the release of active ingredients under specific conditions, reducing irritation, and serving as a carrier in food and pharmaceuticals.

[0003] The bioprocess for preparing alpha cyclodextrin involves liquefying starch slurry, followed by enzymatic conversion. After conversion, the alpha cyclodextrin product is obtained through enzyme inactivation, purification, concentration, and crystallization. In alpha cyclodextrin preparation, concentration is a crucial bridge connecting the upstream bioconversion and downstream high-end refining. It is not merely a simple "dehydration" step, but a decisive unit operation directly affecting product yield, purity, crystal morphology, production cost, and energy consumption. However, due to the characteristics of alpha cyclodextrin, the evaporation equipment used in the concentration process is currently inefficient and easily damages the cyclodextrin structure. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an alpha cyclodextrin concentration system that can achieve segmented concentration of alpha cyclodextrin, protect the structural integrity of alpha cyclodextrin, and improve the concentration efficiency of alpha cyclodextrin.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The alpha cyclodextrin concentration system of this utility model includes an evaporation tower, a heating jacket on the outside of the evaporation tower, a buffer tank connected to the evaporation tower, a heat exchange jacket on the outside of the buffer tank, a cooler, a low-temperature tank and an insulation tank connected in sequence to the buffer tank, a compressor tank connected to the top of the evaporation tower and the top of the buffer tank, the bottom of the compressor tank connected to the heat exchange jacket, a vacuum pump connected to both the low-temperature tank and the insulation tank, an insulation layer on the side of the insulation tank, and the bottom of the heat exchange jacket connected to the insulation layer.

[0007] The evaporation tower is equipped with a raw liquid inlet at the top.

[0008] The evaporation tower includes an upper flow zone and a lower storage zone, which are connected. A heating jacket is located outside the upper flow zone.

[0009] Several laminar flow plates are spaced apart in the upper inner flow zone of the evaporator tower.

[0010] Each of the laminar flow plates is provided with several through holes.

[0011] The evaporator tower, buffer tank, and compressor tank are all equipped with viewing windows on their side walls.

[0012] The bottom of the buffer tank is connected to the top of the cooler, and the bottom of the cooler is connected to the top of the cryogenic tank.

[0013] The cooler has a cooling water inlet at the bottom and a cooling water outlet at the top.

[0014] The vacuum pump is connected to the top of the cryogenic tank and the top of the insulation tank, respectively.

[0015] The bottom of the compressor tank is connected to the upper part of the heat exchange jacket, and the bottom of the heat exchange jacket is connected to the upper part of the insulation layer.

[0016] The beneficial effects of this utility model are:

[0017] This invention addresses the characteristic of alpha cyclodextrin being easily decomposed under prolonged high temperatures by segmenting its concentration process. An evaporation tower removes most of the water from the alpha cyclodextrin, and the high-temperature water vapor generated can be used for reheating to prevent the alpha cyclodextrin from decomposing and discoloring due to excessively rapid temperature increases. The rapid cooling of the alpha cyclodextrin after the two heating cycles creates a temperature difference, enabling water vapor separation. This separation is achieved by vacuum pumping, allowing for rapid concentration at low temperatures. The reused high-temperature water vapor can then be used for heat preservation and concentration of the alpha cyclodextrin at a lower temperature, further separating water vapor from the alpha cyclodextrin using a vacuum pump.

[0018] This invention reduces the probability of alpha cyclodextrin decomposition and discoloration under prolonged high-temperature conditions by gradually concentrating alpha cyclodextrin, and reuses the generated high-temperature water vapor multiple times, reducing resource waste. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the laminar flow plate structure of this utility model;

[0021] In the diagram: 1. Evaporation tower; 2. Buffer tank; 3. Low temperature tank; 4. Insulation tank; 5. Cooler; 6. Compressor tank; 7. Vacuum pump; 8. Raw liquid inlet; 9. Heating jacket; 10. Heat exchange jacket; 11. Insulation layer; 101. Laminar flow plate. Detailed Implementation

[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1-2 As shown, the alpha cyclodextrin concentration system of this utility model includes an evaporation tower 1, a heating jacket 9 on the outside of the evaporation tower 1, a buffer tank 2 connected to the evaporation tower 1, a heat exchange jacket 10 on the outside of the buffer tank 2, a cooler 5, a low-temperature tank 3 and an insulation tank 4 connected in sequence to the buffer tank 2, a compressor tank 6 connected to the top of both the evaporation tower 1 and the buffer tank 2, the bottom of the compressor tank 6 connected to the heat exchange jacket 10, a vacuum pump 7 connected to both the low-temperature tank 3 and the insulation tank 4, an insulation layer 11 on the side of the insulation tank 4, and the bottom of the heat exchange jacket 10 connected to the insulation layer 11.

[0025] The top of the evaporator 1 is equipped with a raw liquid inlet 8.

[0026] Evaporation tower 1 includes an upper flow zone and a lower storage zone, which are connected. Heating jacket 9 is located outside the upper flow zone.

[0027] Several laminar flow plates 101 are spaced apart in the upper inner flow zone of the evaporator 1.

[0028] Each laminar flow plate 101 has several through holes.

[0029] The evaporator tower 1, buffer tank 2 and compressor tank 6 are all equipped with viewing windows on their side walls.

[0030] The bottom of buffer tank 2 is connected to the top of cooler 5, and the bottom of cooler 5 is connected to the top of cryogenic tank 3.

[0031] The cooler 5 has a cooling water inlet at the bottom and a cooling water outlet at the top.

[0032] Vacuum pump 7 is connected to the top of cryogenic tank 3 and the top of insulation tank 4 respectively.

[0033] The bottom of the compressor tank 6 is connected to the upper part of the heat exchange jacket 10, and the bottom of the heat exchange jacket 10 is connected to the upper part of the insulation layer 11.

[0034] Working principle and process:

[0035] The alpha cyclodextrin solution is fed into the evaporation tower 1 through the raw liquid inlet 8, and then heated through the heating jacket 9. As the water in the alpha cyclodextrin solution evaporates, the high-temperature water vapor is extracted through the compressor tank 6 and transported to the heat exchange jacket 10 outside the buffer tank 2. The alpha cyclodextrin solution inside the evaporation tower 1 is then transported to the buffer tank 2 and reheated by the high-temperature water vapor. The alpha cyclodextrin solution in the buffer tank 2 is then transported to the cooler 5 for cooling with cooling water. The cooled alpha cyclodextrin solution is then transported to the low-temperature tank 3. Due to the rapid cooling and the resulting temperature difference, the water in the alpha cyclodextrin solution is easily and quickly separated. A vacuum pump 7 creates negative pressure, which rapidly extracts the water for further concentration. Finally, the solution is transported to the insulation tank 4 and kept warm using the used hot water in the heat exchange jacket 10. The negative pressure environment created by the vacuum pump 7 in the insulation tank 4 promotes further evaporation of water, ultimately achieving the concentration of alpha cyclodextrin.

Claims

1. An alpha cyclodextrin concentration system, comprising an evaporation tower (1), characterized in that, A heating jacket (9) is provided on the outside of the evaporator (1). A buffer tank (2) is connected to the evaporator (1). A heat exchange jacket (10) is provided on the outside of the buffer tank (2). A cooler (5), a low-temperature tank (3), and an insulation tank (4) are connected in sequence to the buffer tank (2). A compressor tank (6) is connected to the top of the evaporator (1) and the top of the buffer tank (2). The bottom of the compressor tank (6) is connected to the heat exchange jacket (10). A vacuum pump (7) is connected to both the low-temperature tank (3) and the insulation tank (4). An insulation layer (11) is provided on the side of the insulation tank (4). The bottom of the heat exchange jacket (10) is connected to the insulation layer (11).

2. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The top of the evaporator (1) is provided with a raw liquid inlet (8).

3. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The evaporation tower (1) includes an upper flow zone and a lower storage zone. The flow zone and the storage zone are connected. The heating jacket (9) is located outside the upper flow zone.

4. The alpha cyclodextrin concentration system according to claim 3, characterized in that, Several laminar flow plates (101) are spaced apart in the upper inner flow zone of the evaporator (1).

5. The alpha cyclodextrin concentration system according to claim 4, characterized in that, Each laminar flow plate (101) has several through holes.

6. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The evaporator (1), buffer tank (2) and compressor tank (6) are all equipped with viewing windows on their side walls.

7. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The bottom of the buffer tank (2) is connected to the top of the cooler (5), and the bottom of the cooler (5) is connected to the top of the cryogenic tank (3).

8. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The cooler (5) has a cooling water inlet at the bottom and a cooling water outlet at the top.

9. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The vacuum pump (7) is connected to the top of the cryogenic tank (3) and the top of the insulation tank (4) respectively.

10. The alpha cyclodextrin concentration system according to claim 1, characterized in that, The bottom of the compressor tank (6) is connected to the upper part of the heat exchange jacket (10), and the bottom of the heat exchange jacket (10) is connected to the upper part of the insulation layer (11).

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