A freeze concentration apparatus

Abstract

The application belongs to the technical field of frozen concentration, and particularly relates to a frozen concentration device, which comprises a frozen dissolution assembly, a gas treatment assembly and a gas-liquid separation device. The frozen dissolution assembly comprises a container, a container upper cover, a gas guide hole arranged on the container upper cover and a gas-liquid mixture outlet arranged at the bottom of the container. The gas treatment assembly is connected with the container, provides high gas pressure to crush the frozen material in the container, and provides energy medium gas to transfer heat to the frozen material in the container. The gas-liquid separation device is connected with the gas-liquid mixture outlet, and separates the outflowing gas-liquid mixture. The dilute solution is frozen into the frozen material in a solid state or a solid-liquid mixed state in the frozen dissolution assembly. After the high gas pressure of the gas treatment assembly crushes the frozen material in the container, the energy medium gas penetrates the frozen material, so that the dilute solution is concentrated by realizing dissolution and separation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of freeze concentration, and particularly relates to a freeze concentration device. BACKGROUND

[0002] The existing freeze concentration technical method is a method for realizing concentration through solid-liquid separation by using the solid-liquid correlation of a dilute solution and ice below the freezing point; the method mainly has two modes: a suspension crystallization freeze concentration method and a (interface) progressive freeze concentration method. In addition, there is a freeze concentration method through natural dissolution of ice or heating dissolution of ice (a traditional and conventional heating dissolution freeze concentration method). However, the three existing freeze concentration methods all have the problem of low concentration efficiency.

[0003] The suspension crystallization freeze concentration method and the progressive freeze concentration method are methods for realizing concentration through solid-liquid (ice crystal and liquid) separation, and both have the problems of ice crystal entrainment of solutes and low concentration efficiency. The concentration method of the traditional and conventional heating dissolution (including natural dissolution) of frozen materials, although does not have the problem of solute entrainment leading to efficiency, but has to face a problem that technicians have been unable to solve for a long time and seriously affects the concentration efficiency: when the frozen materials are conventionally and routinely heated, if the heating is too fast, the concentration effect is poor, if low-temperature heating (such as refrigeration temperature) is adopted, the concentration effect will be better than that at high temperature (relative to temperature), but the time consumption is very long. Therefore, when the traditional and conventional heating dissolution freeze concentration method is adopted, technicians generally prefer natural dissolution at room temperature (heating dissolution using environmental energy) or heating dissolution at refrigeration temperature; the traditional and conventional heating dissolution (including natural dissolution at room temperature) freeze concentration not only consumes a long time, but also has lower concentration efficiency than the first two methods (methods for realizing concentration through solid-liquid separation). Therefore, the current mainstream freeze concentration technical method mostly adopts the first two methods (methods for realizing concentration through solid-liquid separation).

[0004] Existing cryogenic concentration apparatuses include a dissolving component and a gas processing component. The dissolving component contains a filter element that divides it into upper and lower parts: the upper part holds the crushed solids, and the lower part holds the dissolved solution. The gas processing component includes a gas drying device, a gas temperature regulating device, and a fan connected in sequence. A gas inlet is located on the side wall or top of the upper part of the dissolving component, connected to the fan outlet, and a gas outlet is located on the side wall of the lower part. The dry gas entering through the gas inlet acts as an energy medium, penetrating the crushed solids in the upper part of the dissolving component and transferring heat. The gas then exits through the gas outlet in the lower part of the dissolving component. The dissolved solution passes through the filter element into the lower part of the dissolving component, allowing for segmented solution collection to obtain solutions of different concentrations, thus achieving cryogenic concentration of a dilute solution. This apparatus improves the dissolution and separation efficiency by crushing the cryogenic material (solid or solid-liquid mixture) and allowing the energy medium gas to penetrate the crushed material, thereby enhancing the cryogenic concentration effect and efficiency. However, during the freeze-concentration process, this device requires a separate crushing step for the frozen materials before dissolving and separating them, increasing the operational complexity. Concentrating high-concentration solutions often necessitates deep cryogenic treatment. At low temperatures (especially deep cryogenic conditions), each additional step increases the operational complexity. Furthermore, the increased number of operational steps also leads to greater complexity in designing multi-stage freeze-concentration combinations or automated control systems for freeze-concentration devices. Summary of the Invention

[0005] To address the problems existing in the prior art, the main objective of this invention is to provide a cryogenic concentration apparatus.

[0006] According to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A cryogenic concentration apparatus includes: a cryogenic dissolution component, a gas processing component, and a gas-liquid separation component;

[0008] The freeze-thaw assembly includes a container, a container cover, a gas guide hole on the container cover, and a gas-liquid mixture outlet at the bottom of the container;

[0009] The gas handling unit is connected to the container, which crushes the frozen material in the container by pressing it with high pressure (positive or negative pressure) and provides the energy medium gas to transfer heat to the frozen material in the container. This avoids the need for independent crushing operations in other devices, which not only improves operational efficiency but also facilitates automated design and operation.

[0010] The gas-liquid separator is connected to the outlet of the gas-liquid mixture to separate the outflowing gas-liquid mixture into gas and liquid components.

[0011] The dilute solution is frozen into frozen material in solid state or solid-liquid mixed state in the freezing dissolving assembly. The gas treatment assembly uses energy medium gas to penetrate the frozen material after extruding and crushing the frozen material in the container by providing high gas pressure (positive high pressure or negative high pressure) to the container, so as to realize dissolving and separation, and to segmentally take the dissolved solution, and the solution meeting the target concentration is taken for standby, and the solution not meeting the target concentration is continuously frozen and dissolved by using the freezing concentration device to realize concentration of the dilute solution.

[0012] As a preferred scheme of the freezing concentration device, the gas treatment assembly uses the same device to realize supply of high gas pressure (positive high pressure or negative high pressure) and energy medium gas.

[0013] As a preferred scheme of the freezing concentration device, the gas treatment assembly uses different devices to realize supply of high gas pressure (positive high pressure or negative high pressure) and energy medium gas, and includes a device for realizing high gas pressure (positive high pressure or negative high pressure) and a device for supplying energy medium gas.

[0014] As a preferred scheme of the freezing concentration device, the gas treatment assembly is connected with the container, and the high gas pressure (positive high pressure or negative high pressure) provided by the gas treatment assembly is used to extrude and crush the frozen material in the container, and the high gas pressure (positive high pressure or negative high pressure) is formed by the following manners: the high pressure gas is introduced to form positive high pressure to extrude and crush the frozen material in the container, or the negative pressure extraction is used to form negative high pressure to extrude and crush the frozen material in the container.

[0015] As a preferred scheme of the freezing concentration device, the gas treatment assembly includes a power fan and a gas drying device connected in sequence, the gas drying device is connected with the gas-liquid separation device, and the power fan is connected with the container.

[0016] As a preferred scheme of the freezing concentration device, the gas treatment assembly further includes a gas heating device, and the gas heating device is located between the power fan and the gas drying device.

[0017] As a preferred scheme of the freezing concentration device, the gas treatment assembly further includes a high pressure gas device, and the high pressure gas device is connected with the container.

[0018] As a preferred scheme of the freezing concentration device, the gas treatment assembly is a negative pressure extraction device, and the negative pressure extraction device is connected with the gas-liquid separation device.

[0019] As a preferred scheme of the freezing concentration device, the solution is taken out in sections by the gas-liquid separation device, the solution meeting the target concentration is taken out for use, and the solution not meeting the target concentration is continuously frozen and dissolved by using the freezing concentration device to realize concentration of the dilute solution.

[0020] As a preferred scheme of the freezing concentration device, the gas-liquid mixture outlet is further provided with a protection device.

[0021] As a preferred scheme of the freezing concentration device, the bottom of the container is further provided with a container bottom cover.

[0022] As a preferred scheme of the freezing concentration device, the energy medium gas is a gas that does not interfere with freezing and dissolution of the material, for example, air, inert gas, carbon dioxide gas, nitrogen, etc.

[0023] According to another aspect of the present application, the present application provides the following technical scheme:

[0024] The freezing concentration device is applied in the fields of food, cosmetics, biological medicine, petroleum chemical industry, metal processing, environmental protection treatment, etc.

[0025] The freezing concentration device is applied in the fields of milk, vinegar (including vinegar-containing food, vinegar beverage, condiment, etc.), wine, beverage (such as fruit juice, coffee, tea, soy milk, soybean milk, etc.), chemical liquid, Chinese herbal medicine liquid, plant extract, petroleum purification, chemical purification, metal separation and purification, seawater purification, wastewater treatment, etc.

[0026] The freezing concentration device is applied in the field of freezing concentration and separation and purification of heat-sensitive raw materials.

[0027] The freezing concentration device is applied in the fields of freezing concentration and separation and purification of milk, vinegar (including vinegar-containing food, vinegar beverage, condiment, etc.), wine, beverage (such as fruit juice, coffee, tea, soy milk, soybean milk, etc.), chemical liquid, Chinese herbal medicine liquid, plant extract, petroleum purification, chemical purification, metal separation and purification, seawater purification, wastewater treatment, etc.

[0028] The freezing concentration device is applied in the fields of freezing concentration and separation and purification of milk, vinegar (including vinegar-containing food, vinegar beverage, condiment, etc.), wine, beverage (such as fruit juice, coffee, tea, soy milk, soybean milk, etc.), chemical liquid, Chinese herbal medicine liquid, plant extract, petroleum purification, chemical purification, metal separation and purification, seawater purification, wastewater treatment, etc.

[0029] This invention proposes a cryogenic concentration apparatus, comprising a cryogenic dissolution component, a gas processing component, and a gas-liquid separation device. The cryogenic dissolution component includes a container, a container cover, a gas guide hole on the container cover, and a gas-liquid mixture outlet at the bottom of the container. The gas processing component is connected to the container, and the high pressure (positive or negative pressure) it provides compresses and breaks down the frozen material in the container, while also providing an energy medium gas to transfer heat to the frozen material in the container. The gas-liquid separation device is connected to the gas-liquid mixture outlet to separate the outflowing gas-liquid mixture. The dilute solution is frozen into a solid or solid-liquid mixture in the cryogenic dissolution component. After the high pressure (positive or negative pressure) provided by the gas processing component compresses and breaks down the frozen material in the container, the energy medium gas penetrates the frozen material to achieve dissolution and separation. The dissolved solution is collected in segments. The solution that meets the target concentration is kept for later use, while the solution that does not meet the target concentration is further frozen and dissolved using the cryogenic concentration apparatus to achieve dilute solution concentration. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the cryogenic concentration apparatus of the present invention.

[0032] In the diagram, 1-container, 2-container top cover, 3-container bottom cover, 4-refrigeration material, 5-gas guide hole, 6-gas-liquid mixture outlet, 7-protection device, 8-protection device switch, 9-filter device, 10-insulation layer, 11-high pressure gas device, 12, 13-valve, 14-power fan, 15-gas heating device, 16-gas drying device, 17-gas-liquid separation device, 18-concentrated solution outlet valve, 19-energy medium gas.

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions described below in conjunction with the embodiments will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

[0035] Example

[0036] like Figure 1 As shown, the present invention provides a cryogenic concentration apparatus, comprising: a cryogenic dissolution assembly, a gas processing assembly, and a gas-liquid separation device;

[0037] The freeze-thaw assembly includes a container 1, a container cover 2, a gas guide hole 5 disposed on the container cover 2, and a gas-liquid mixture outlet 6 disposed at the bottom of the container 1;

[0038] The gas handling assembly is connected to the container 1. The high pressure provided by the assembly crushes and breaks up the frozen material 4 in the container 1, and the energy medium gas 19 transfers heat to the frozen material 4 in the container 1.

[0039] The gas-liquid separator 17 is connected to the gas-liquid mixture outlet 6 to perform gas-liquid separation on the outflowing gas-liquid mixture.

[0040] The dilute solution is frozen into a solid or solid-liquid mixture in the cryo-dissolution component. The high pressure of the gas treatment component squeezes and crushes the frozen material 4 in the container 1. The energy medium gas 19 penetrates the frozen material 4 to achieve dissolution and separation. The dissolved solution is collected in segments. The solution that meets the target concentration is kept for later use. The solution that does not meet the target concentration is frozen and dissolved again using the cryo-concentration device to achieve dilute solution concentration.

[0041] In one embodiment of the invention, the gas processing assembly employs the same device to supply high-pressure and energy medium gas 19.

[0042] In one embodiment of the present invention, the gas processing assembly includes a power fan 14, the connection method and power of which are adjusted to serve as a dual-function device for supplying high-pressure and energy medium gas 19.

[0043] In one embodiment of the present invention, the gas processing assembly further includes a gas heating device 15 and a gas drying device 16; the gas drying device 16 is connected to a gas-liquid separation device 17, and the power blower 14 is connected to the container 1; the gas heating device 15 is located between the gas drying device 16 and the power blower 14.

[0044] In one embodiment of the present invention, the dissolved solution is separated into segments by the gas-liquid separation device 17. The solution that meets the target concentration is kept for later use, while the solution that does not meet the target concentration is further frozen and dissolved using the freeze-concentration device to achieve concentration of the dilute solution.

[0045] In one embodiment of the present invention, the gas-liquid mixture outlet 6 is further provided with a protective device 7.

[0046] In one embodiment of the present invention, a container bottom cover 3 is also provided at the bottom of the container 1.

[0047] In one embodiment of the present invention, the energy medium gas 19 is a gas that does not interfere with the dissolution and separation of the cryogenic material, such as air, inert gas, carbon dioxide gas, nitrogen gas, etc.

[0048] In one embodiment of the present invention, the gas processing assembly employs different devices to supply high-pressure gas and energy medium gas 19, including a device for supplying high-pressure gas and a device for supplying energy medium gas 19. Specifically, the device for supplying high-pressure gas is a high-pressure gas device 11, and the device for supplying energy medium gas 19 is an energy medium gas processing system. The high-pressure gas device 11 is connected to the container 1, and the high-pressure gas it provides forms a positive pressure gas to crush and break up the frozen material 4 in the container 1. The energy medium gas processing system is connected to the container 1, and it provides energy medium gas 19 to provide heat to the frozen material 4 in the container 1. The dilute solution is frozen into a solid or solid-liquid mixed state of frozen material 4 in the freeze-dissolving assembly. After the high-pressure gas in the high-pressure gas device 11 forms a positive pressure gas to crush and break up the frozen material 4 in the container 1, the energy medium gas 19 provided by the energy medium gas processing system penetrates the frozen material 4 to achieve dissolution and separation. The dissolved solution is collected in segments. The solution that meets the target concentration is kept for later use, and the solution that does not meet the target concentration is further frozen and dissolved using the freeze-concentration device to achieve dilute solution concentration.

[0049] like Figure 1As shown, the cryogenic concentration unit (gas processing component) employs different devices to supply high-pressure gas and energy medium gas 19, including a device for achieving high pressure and a device for supplying energy medium gas 19. Specifically, the device for achieving high pressure is a high-pressure gas device 11, and the device for supplying energy medium gas 19 is an energy medium gas processing system. The energy medium gas processing system sequentially includes a gas drying device 16, a gas heating device 15, and a power fan 14. The gas drying device 16 is connected to a gas-liquid separation device 17, and the power fan 14... (Connected to container 1) In use, open the container cover 2 of the cryo-dissolving component container 1, lock the protective device 7 using the protective device switch 8, then inject the dilute solution into container 1 and close the container cover 2; send the cryo-dissolving component into the freezing equipment, and after the dilute solution is frozen into a solid or solid-liquid mixture freezing material 4 in the cryo-dissolving component, remove the cryo-dissolving component from the freezing equipment; through the gas guide hole 5 set on the container cover 2 and the gas-liquid mixture outlet 6 set at the bottom of the container, the cryo-concentration component is connected to the high-pressure gas device 11 and the energy... The medium processing system and the gas-liquid separation device 17 are connected; after opening valve (e.g., a gas gate valve) 12 and closing valve (e.g., a gas gate valve) 13, high-pressure gas is supplied to container 1 through high-pressure gas device 11, causing the frozen material 4 inside to be crushed; the high-pressure gas device 11 and valve 12 are closed, and valve 13 is opened; the protection device 7 is opened through protection device switch 8; the energy medium gas processing system is started, allowing the dried energy medium gas 19 to enter container 1 and penetrate the frozen material 4; the gas-liquid mixture is separated in the gas-liquid separation device 17; the gas separated from the gas-liquid separation device 17 is dried by the gas drying device 16 of the energy medium gas processing system, heated to the set temperature in the gas heating device 15, and sent into container 1 by the power fan 14 to continue circulating and penetrating the frozen material 4 to transfer heat; the dissolved solution is collected in stages from the concentrated solution outlet valve 18 of the gas-liquid separation device 17, the solution that meets the target concentration is kept for later use, and the solution that does not meet the target concentration is frozen and dissolved again using the freezing concentration device to achieve dilute solution concentration.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A cryogenic concentration apparatus, characterized in that, include: Freeze-thaw assembly, gas processing assembly, gas-liquid separation device; The freeze-thaw assembly includes a container, a container cover, a gas guide hole on the container cover, and a gas-liquid mixture outlet at the bottom of the container; The gas handling unit is connected to the container, and uses high pressure to crush and break up the frozen material in the container, and provides an energy medium gas to transfer heat to the frozen material in the container; The gas-liquid separator is connected to the outlet of the gas-liquid mixture to separate the outflowing gas-liquid mixture into gas and liquid components. Dilute solutions are frozen into solid or solid-liquid mixtures in a cryo-dissolution unit. A gas treatment unit applies high pressure to the container to crush the frozen material inside. Energy medium gas then penetrates the frozen material to achieve dissolution and separation. The dissolved solutions are collected in segments. Solutions that meet the target concentration are kept for later use. Solutions that do not meet the target concentration are frozen and dissolved again using a cryo-concentration unit to concentrate the dilute solution.

2. The cryogenic concentration apparatus according to claim 1, characterized in that, The gas handling unit uses the same device to supply high-pressure and energy medium gases.

3. The cryogenic concentration apparatus according to claim 1, characterized in that, The gas handling assembly employs different devices to supply high-pressure and energy medium gases, including devices for supplying high-pressure gases and devices for supplying energy medium gases.

4. The cryogenic concentration apparatus according to claim 1, characterized in that, The gas handling assembly includes a power blower and a gas drying device connected in sequence; the gas drying device is connected to a gas-liquid separation device, and the power blower is connected to a container.

5. The cryogenic concentration apparatus according to claim 1, characterized in that, The gas processing component is a negative pressure extraction device, which is connected to a gas-liquid separation device.

6. The cryogenic concentration apparatus according to claim 1, characterized in that, The solution is separated into sections by a gas-liquid separation device. The solution that meets the target concentration is kept for later use, while the solution that does not meet the target concentration is further frozen and dissolved using a freeze-concentration device to achieve concentration of the dilute solution.

7. The cryogenic concentration apparatus according to claim 1, characterized in that, The outlet of the gas-liquid mixture is also equipped with a protective device.

8. The cryogenic concentration apparatus according to claim 1, characterized in that, The container also has a bottom cover.

9. The cryogenic concentration apparatus according to claim 1, characterized in that, The energy medium gas is a gas that does not interfere with the dissolution and separation of the cryogenic materials.

10. The application of the cryogenic concentration apparatus according to any one of claims 1-9 in the fields of food, cosmetics, biomedicine, petrochemicals, metal processing, and environmental protection.

Images