CN214486398U - A hydrolysate nanofiltration device for producing glucosamine hydrochloride - Google Patents
A hydrolysate nanofiltration device for producing glucosamine hydrochloride Download PDFInfo
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- CN214486398U CN214486398U CN202120394529.1U CN202120394529U CN214486398U CN 214486398 U CN214486398 U CN 214486398U CN 202120394529 U CN202120394529 U CN 202120394529U CN 214486398 U CN214486398 U CN 214486398U
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Abstract
The utility model discloses a hydrolysate nanofiltration device for producing glucosamine hydrochloride belongs to chemical industry equipment technical field. The device comprises a primary nanofiltration device, a secondary nanofiltration device and a nitrogen source; the first-stage nanofiltration device comprises a first-stage nanofiltration tank, a first-stage nanofiltration membrane and a decolorization box; a first supporting plate and a first nanofiltration membrane are arranged in the first nanofiltration tank; the decolorizing box is fixedly arranged on the inner wall of the primary nanofiltration tank, and an activated carbon layer is arranged in the decolorizing box; the secondary nanofiltration device comprises a secondary nanofiltration tank and a secondary nanofiltration membrane component; the secondary nanofiltration membrane component comprises a horizontal pipeline membrane component and a plurality of groups of vertical pipeline membrane components communicated with the horizontal pipeline membrane component; the nitrogen source is communicated with the first-stage nanofiltration tank and the second-stage nanofiltration tank. The device is provided with a two-stage nanofiltration membrane filtering device, and hydrolysate can be treated by two stages to obtain a product with higher purity; and a nitrogen source is used as a power source in the filtering process, so that the filtering efficiency is increased.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment, concretely relates to hydrolysate nanofiltration device for producing glucosamine hydrochloride.
Background
Nanofiltration membranes are a functional semipermeable membrane that allows the permeation of solvent molecules or certain low molecular weight solutes or low valent ions. As a novel separation technology, the method has wide application in the preparation of drinking water and the industries of food, medicine, bioengineering, pollution control and the like. A method for preparing glucosamine hydrochloride by microwave-assisted acidolysis of chitin is characterized in that chitin and hydrochloric acid are subjected to acidolysis under the microwave condition, then a hydrolysate generated by acidolysis is subjected to primary concentration treatment, and a concentrated solution is subjected to primary nanofiltration and secondary nanofiltration and then subjected to crystallization treatment to obtain the glucosamine hydrochloride with high purity.
Disclosure of Invention
Aiming at the problems in the prior art, the technical problem to be solved by the utility model is to provide a hydrolysate nanofiltration device for producing glucosamine hydrochloride, the device is provided with a two-stage nanofiltration membrane filtration device, and hydrolysate can obtain a product with higher purity after two-stage treatment; and a nitrogen source is used as a power source in the filtering process, so that the filtering efficiency is increased.
In order to solve the above problem, the utility model adopts the following technical scheme:
a hydrolysate nanofiltration device for producing glucosamine hydrochloride comprises a primary nanofiltration device, a secondary nanofiltration device and a nitrogen source;
the primary nanofiltration device comprises a primary nanofiltration tank, a primary nanofiltration membrane and a decolorization box, wherein the primary nanofiltration membrane and the decolorization box are arranged in the primary nanofiltration tank; the upper part of the primary nanofiltration tank is provided with a liquid inlet and a nitrogen inlet, and the lower part of the primary nanofiltration tank is provided with a liquid outlet; a first supporting plate is arranged in the primary nanofiltration tank, and one end of the first supporting plate is provided with a liquid permeation hole; the primary nanofiltration membrane is arranged on the first supporting plate; the decolorizing box is fixedly arranged on the inner wall of the primary nanofiltration tank through a closed connecting piece, filtrate holes are arranged on an upper bottom plate and a lower bottom plate of the decolorizing box, and an activated carbon layer is arranged in the decolorizing box;
the secondary nanofiltration device comprises a secondary nanofiltration tank and a secondary nanofiltration membrane component arranged in the secondary nanofiltration tank, wherein the upper part of the secondary nanofiltration tank is provided with a liquid inlet and a nitrogen inlet, and the lower part of the secondary nanofiltration tank is provided with a liquid outlet; the liquid inlet of the second-stage nanofiltration tank is connected with the liquid outlet of the first-stage nanofiltration tank; the secondary nanofiltration membrane component comprises a horizontal pipeline membrane component and a plurality of groups of vertical pipeline membrane components communicated with the horizontal pipeline membrane component, and the horizontal pipeline membrane component is communicated with a liquid inlet of the secondary nanofiltration tank;
the nitrogen source is communicated with the nitrogen inlet of the first-stage nanofiltration tank, and the nitrogen source is communicated with the nitrogen inlet of the second-stage nanofiltration tank.
The hydrolysate nanofiltration device for producing the glucosamine hydrochloride is characterized in that second support plates are arranged on two side walls of the lower end in the primary nanofiltration tank, and the top of each second support plate is movably connected with a decolorization box through a spring; and two ends of the top of the decoloring box are provided with vibrating motors, and the vibrating motors are connected with an external power supply.
The hydrolysate nanofiltration device for producing the glucosamine hydrochloride is characterized in that a damping pad is arranged between the vibrating motor and the decolorization box.
The hydrolysate nanofiltration device for producing the glucosamine hydrochloride is characterized in that a first air valve and a second air valve are respectively arranged on a connecting pipeline of the nitrogen source and the first-stage nanofiltration tank and a connecting pipeline of the nitrogen source and the second-stage nanofiltration tank.
The hydrolysate nanofiltration device for producing the glucosamine hydrochloride is characterized in that the closed connecting piece is a rubber plate.
The hydrolysate nanofiltration device for producing the glucosamine hydrochloride further comprises a concentration tank, a liquid collecting tank, a condenser, an evaporator, a compressor and an expansion valve, wherein the concentration tank is communicated with the liquid collecting tank through a pipeline; the condenser is arranged in the concentration tank, the evaporator is arranged in the liquid collecting tank, and the condenser, the compressor, the evaporator and the expansion valve are sequentially connected to form a closed loop; and a liquid outlet of the liquid collecting tank is connected with a liquid inlet of the first-stage nanofiltration tank.
Has the advantages that: compared with the prior art, the beneficial effects of the utility model are that:
(1) the hydrolysate nanofiltration device for producing the glucosamine hydrochloride is provided with a two-stage nanofiltration membrane filtration device, and hydrolysate can be treated in two stages to obtain products with higher purity; and a nitrogen source is used as a power source in the filtering process, so that the filtering efficiency is increased.
(2) The hydrolysate nanofiltration device for producing glucosamine hydrochloride of the utility model is provided with the condenser, the compressor, the evaporator and the expansion valve which are connected in sequence to form a closed loop, the nanofiltration process does not need high temperature, and the solution temperature is high in the concentration process; the evaporator can collect energy generated when the solution in the liquid collecting tank is cooled, and the energy absorbed by the evaporator is transferred to the concentration tank through the work of the expansion valve and the compressor, so that the energy is saved by utilizing the proceeding of the concentration process.
Drawings
Fig. 1 is a schematic structural diagram of a hydrolysate nanofiltration device for producing glucosamine hydrochloride.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Example 1
A hydrolysate nanofiltration device for producing glucosamine hydrochloride, which has a structural schematic diagram shown in figure 1. As shown in fig. 1, the apparatus comprises a primary nanofiltration device, a secondary nanofiltration device and a nitrogen source;
the primary nanofiltration device comprises a primary nanofiltration tank 1, a primary nanofiltration membrane 5 and a decoloration box 6 which are arranged in the primary nanofiltration tank 1; the upper part of the first-stage nanofiltration tank 1 is provided with a liquid inlet and a nitrogen inlet, and the lower part is provided with a liquid outlet; a first supporting plate 3 is arranged in the first-stage nanofiltration tank 1, and one end of the first supporting plate 3 is provided with a liquid permeable hole 4; the primary nanofiltration membrane 5 is arranged on the first supporting plate 3; the decolorizing box 6 is fixedly arranged on the inner wall of the primary nanofiltration tank 1 through a closed connecting piece, filtrate holes are arranged on an upper bottom plate and a lower bottom plate of the decolorizing box 6, and an activated carbon layer 8 is arranged in the decolorizing box 6;
the secondary nanofiltration device comprises a secondary nanofiltration tank 2 and a secondary nanofiltration membrane component arranged in the secondary nanofiltration tank 2, wherein the upper part of the secondary nanofiltration tank 2 is provided with a liquid inlet and a nitrogen inlet, and the lower part of the secondary nanofiltration tank is provided with a liquid outlet; the liquid inlet of the second-stage nanofiltration tank 2 is connected with the liquid outlet of the first-stage nanofiltration tank 1; the secondary nanofiltration membrane component comprises a horizontal pipeline membrane component 12 and a plurality of groups of vertical pipeline membrane components 13 communicated with the horizontal pipeline membrane component 12, and the horizontal pipeline membrane component 12 is communicated with a liquid inlet of the secondary nanofiltration tank 2;
the nitrogen source 16 is communicated with the nitrogen inlet of the first-stage nanofiltration tank 1, and the nitrogen source 16 is communicated with the nitrogen inlet of the second-stage nanofiltration tank 2.
The device is provided with a two-stage nanofiltration membrane filtering device, and hydrolysate can be treated by two stages to obtain a product with higher purity; and a nitrogen source is used as a power source in the filtering process, so that the filtering efficiency is increased.
Example 2
A hydrolysate nanofiltration device for producing glucosamine hydrochloride, which has a structural schematic diagram shown in figure 1. As shown in fig. 1, the apparatus comprises a primary nanofiltration device, a secondary nanofiltration device and a nitrogen source;
the primary nanofiltration device comprises a primary nanofiltration tank 1, a primary nanofiltration membrane 5 and a decoloration box 6 which are arranged in the primary nanofiltration tank 1; the upper part of the first-stage nanofiltration tank 1 is provided with a liquid inlet and a nitrogen inlet, and the lower part is provided with a liquid outlet; a first supporting plate 3 is arranged in the first-stage nanofiltration tank 1, and one end of the first supporting plate 3 is provided with a liquid permeable hole 4; the primary nanofiltration membrane 5 is arranged on the first supporting plate 3; the decolorizing box 6 is fixedly arranged on the inner wall of the primary nanofiltration tank 1 through a rubber plate, filtrate holes are arranged on an upper bottom plate and a lower bottom plate of the decolorizing box 6, and an activated carbon layer 8 is arranged in the decolorizing box 6; two side walls of the inner lower end of the first-stage nanofiltration tank 1 are provided with second supporting plates 9, and the tops of the second supporting plates 9 are movably connected with a decolorizing box 6 through springs 10; and two ends of the top of the decolorizing box 6 are provided with vibrating motors 11, and the vibrating motors 11 are connected with an external power supply. A shock pad is arranged between the vibrating motor 11 and the decoloring box 6,
the secondary nanofiltration device comprises a secondary nanofiltration tank 2 and a secondary nanofiltration membrane component arranged in the secondary nanofiltration tank 2, wherein the upper part of the secondary nanofiltration tank 2 is provided with a liquid inlet and a nitrogen inlet, and the lower part of the secondary nanofiltration tank is provided with a liquid outlet; the liquid inlet of the second-stage nanofiltration tank 2 is connected with the liquid outlet of the first-stage nanofiltration tank 1; the secondary nanofiltration membrane component comprises a horizontal pipeline membrane component 12 and a plurality of groups of vertical pipeline membrane components 13 communicated with the horizontal pipeline membrane component 12, and the horizontal pipeline membrane component 12 is communicated with a liquid inlet of the secondary nanofiltration tank 2;
the nitrogen source 16 is communicated with the nitrogen inlet of the first-stage nanofiltration tank 1, and the nitrogen source 16 is communicated with the nitrogen inlet of the second-stage nanofiltration tank 2; a first air valve 14 and a second air valve 15 are respectively arranged on a connecting pipeline of the nitrogen source 16 and the first-stage nano-filtration tank 1 and a connecting pipeline of the nitrogen source 16 and the second-stage nano-filtration tank 2.
The device also comprises a concentration tank 17, a liquid collecting tank 18, a condenser 19, an evaporator 20, a compressor 21 and an expansion valve 22, wherein the concentration tank 17 is communicated with the liquid collecting tank 18 through a pipeline; the condenser 19 is arranged in the concentration tank 17, the evaporator 20 is arranged in the liquid collecting tank 18, and the condenser 19, the compressor 21, the evaporator 20 and the expansion valve 22 are sequentially connected to form a closed loop; the liquid outlet of the liquid collecting tank 18 is connected with the liquid inlet of the first-stage nanofiltration tank 1.
The device is provided with a two-stage nanofiltration membrane filtering device, and hydrolysate can be treated by two stages to obtain a product with higher purity; and a nitrogen source is used as a power source in the filtering process, so that the filtering efficiency is increased. The condenser 19, the compressor 21, the evaporator 20 and the expansion valve 22 are sequentially connected to form a closed loop, the nanofiltration process does not need high temperature, and the solution temperature is high in the concentration process; the evaporator 20 can collect energy when the solution in the liquid collecting tank 18 is cooled, and transfer the absorbed energy to the concentration tank 17 through the operation of the expansion valve 22 and the compressor 21, so as to utilize the progress of the concentration process and save energy.
Claims (6)
1. A hydrolysate nanofiltration device for producing glucosamine hydrochloride is characterized by comprising a primary nanofiltration device, a secondary nanofiltration device and a nitrogen source; the primary nanofiltration device comprises a primary nanofiltration tank (1), and a primary nanofiltration membrane (5) and a decoloration box (6) which are arranged in the primary nanofiltration tank (1); the upper part of the first-stage nanofiltration tank (1) is provided with a liquid inlet and a nitrogen inlet, and the lower part is provided with a liquid outlet; a first supporting plate (3) is arranged in the first-stage nanofiltration tank (1), and one end of the first supporting plate (3) is provided with a liquid permeable hole (4); the primary nanofiltration membrane (5) is arranged on the first supporting plate (3); the decolorizing box (6) is fixedly arranged on the inner wall of the primary nanofiltration tank (1) through a closed connecting piece, filtrate holes are arranged on an upper bottom plate and a lower bottom plate of the decolorizing box (6), and an activated carbon layer (8) is arranged in the decolorizing box (6);
the secondary nanofiltration device comprises a secondary nanofiltration tank (2) and a secondary nanofiltration membrane component arranged in the secondary nanofiltration tank (2), wherein the upper part of the secondary nanofiltration tank (2) is provided with a liquid inlet and a nitrogen inlet, and the lower part of the secondary nanofiltration tank is provided with a liquid outlet; the liquid inlet of the second-stage nanofiltration tank (2) is connected with the liquid outlet of the first-stage nanofiltration tank (1); the secondary nanofiltration membrane component comprises a horizontal pipeline membrane component (12) and a plurality of groups of vertical pipeline membrane components (13) communicated with the horizontal pipeline membrane component (12), and the horizontal pipeline membrane component (12) is communicated with a liquid inlet of the secondary nanofiltration tank (2);
the nitrogen source (16) is communicated with a nitrogen inlet of the first-stage nano-filtration tank (1), and the nitrogen source (16) is communicated with a nitrogen inlet of the second-stage nano-filtration tank (2).
2. The hydrolysate nanofiltration device for producing glucosamine hydrochloride according to claim 1, wherein two side walls of the inner lower end of the primary nanofiltration tank (1) are provided with second support plates (9), and the top of each second support plate (9) is movably connected with a decolorizing box (6) through a spring (10); and two ends of the top of the decolorizing box (6) are provided with vibrating motors (11), and the vibrating motors (11) are connected with an external power supply.
3. The nanofiltration device of claim 2, wherein a shock pad is arranged between the vibration motor (11) and the decolorization box (6).
4. The nanofiltration device for hydrolysate nanofiltration for producing glucosamine hydrochloride according to claim 1, wherein a first air valve (14) and a second air valve (15) are respectively arranged on the connecting pipeline of the nitrogen source (16) and the primary nanofiltration tank (1) and the connecting pipeline of the nitrogen source (16) and the secondary nanofiltration tank (2).
5. Nanofiltration device of hydrolysates for the production of glucosamine hydrochloride according to claim 1, wherein the closed connectors are rubber sheets (7).
6. The hydrolysate nanofiltration device for producing glucosamine hydrochloride according to claim 1, further comprising a concentration tank (17), a liquid collection tank (18), a condenser (19), an evaporator (20), a compressor (21) and an expansion valve (22), wherein the concentration tank (17) is communicated with the liquid collection tank (18) through a pipeline; the condenser (19) is arranged in the concentration tank (17), the evaporator (20) is arranged in the liquid collection tank (18), and the condenser (19), the compressor (21), the evaporator (20) and the expansion valve (22) are sequentially connected to form a closed loop; the liquid outlet of the liquid collecting tank (18) is connected with the liquid inlet of the first-stage nanofiltration tank (1).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115228300A (en) * | 2022-06-24 | 2022-10-25 | 河北工业大学 | Ion-selective nanofiltration membrane and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115228300A (en) * | 2022-06-24 | 2022-10-25 | 河北工业大学 | Ion-selective nanofiltration membrane and preparation method and application thereof |
| CN115228300B (en) * | 2022-06-24 | 2024-02-23 | 河北工业大学 | Ion-selective nanofiltration membrane and preparation method and application thereof |
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