Crystal cultivation tank and crystallization device

Abstract

The utility model belongs to the technical field of production equipment for producing crystalline fructose from rice, and particularly relates to a crystal cultivating tank and a crystallizing device. The crystal growing tank comprises a tank body, the tank body is further provided with a heating device and a cooling device, and the heating device and the cooling device are matched with each other to adjust the crystal growing temperature. By arranging the heating device and the cooling device, when the temperature in the tank body is higher than the requirement, the cooling device can be used for cooling, and when the temperature in the tank body is lower than the requirement, the heating device can be used for heating, so that the temperature in the crystal growing tank can be controlled according to the requirement.

Description

Technical Field

[0001] This utility model belongs to the technical field of production equipment for making crystallized fructose from rice, and particularly relates to a crystallization tank and crystallization device. Background Technology

[0002] Crystallized fructose is a high-purity solid fructose product. It is a high-purity form of fructose with many advantages, such as high sweetness, low glycemic index, no need for insulin in the metabolic process, less likely to cause tooth decay after consumption, and less likely to cause weight gain.

[0003] The raw materials for crystalline fructose include sucrose, corn starch, inulin, beet syrup, etc. In my country, rice is a staple food with abundant sources. Exploring the use of cadmium-containing rice as a raw material for crystalline fructose expands the comprehensive utilization of cadmium-containing rice.

[0004] The production process of crystalline fructose begins with making a starch slurry from the raw materials. This slurry undergoes enzymatic hydrolysis, followed by filtration and clarification to obtain a clear liquid. This clear liquid is then evaporated, concentrated, and cooled for crystallization, yielding crystalline fructose. The crystallization process typically includes steps such as supersaturation, crystal growth, crystal development, and crystal purification.

[0005] Crystal growth, in this context, refers to the process of introducing crystal nuclei into a supersaturated solution to promote crystal growth. These crystal nuclei can be pre-prepared small crystals or other substances that can provide nucleation sites.

[0006] In traditional crystallization processes, the entire crystallization process is completed within the same tank. However, the temperature and time requirements for the environment differ between steps such as crystal cultivation and growth, resulting in a relatively long crystallization time. To address this issue, patent application number CN202120232594.4 discloses a novel fructose crystallization device, comprising a housing and a vertical crystallizer. A stirring motor is installed on the top surface of the housing, with its shaft penetrating the top surface. A stirring shaft is mounted at the bottom end of the motor shaft, and two horizontal bars are mounted on the stirring shaft, arranged vertically. A spiral plate is installed on the outer circumference of the stirring shaft, positioned between the two horizontal bars. The two horizontal bars are connected by two spiral stirring rods.

[0007] Although the aforementioned patent separates crystal growth from the subsequent crystallization steps, it cannot control the crystal growth temperature during the crystal growth process, and the temperature during the crystal growth process directly affects the quality and efficiency of crystal growth. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a crystal growth tank and crystallization device that can control the temperature of the crystal growth tank to achieve crystal growth.

[0009] The technical solution proposed by this utility model is as follows:

[0010] In a first aspect, this utility model provides a crystal growth vessel, including a vessel body, the vessel body further comprising:

[0011] The heating and cooling devices work together to regulate the crystal growth temperature.

[0012] Optional, the cooling device includes:

[0013] Cooling pipes are installed inside the tank.

[0014] The feed pipe has one end connected to the input end of the cooling pipe and the other end extending out of the tank body.

[0015] The discharge pipe has one end connected to the output end of the cooling pipe and the other end extending out of the tank body.

[0016] Cooling medium enters the cooling pipe along the feed pipe and is discharged from the discharge pipe.

[0017] Optional, the cooling pipes include:

[0018] U-shaped tubes and connecting tubes: multiple U-shaped tubes are connected end to end by connecting tubes to form a ring-shaped cooling pipe.

[0019] Optionally, the cooling pipe is a spiral pipe.

[0020] Optionally, the tank is also equipped with a stirring device, which includes:

[0021] The shaft and blades are arranged in a series. Multiple blades are fixedly mounted on the outer wall of the shaft, and cooling pipes are sleeved on the outside of the blades.

[0022] Optionally, the cooling device may also include:

[0023] The support plate and cooling pipes are fixed relative to the support plate;

[0024] At least one connection port is provided, through which the material inside the support plate exchanges heat with the material outside the support plate.

[0025] Optionally, one portion of the connecting ports is located at one end of the support plate, and the other portion of the connecting ports is located at the other end of the support plate.

[0026] Optionally, multiple blades are spirally wound around the outer wall of the shaft.

[0027] Optionally, the heating device includes:

[0028] Heating jacket, which is installed on the outer wall of the tank;

[0029] The heating medium enters the heating jacket from the input end and exchanges heat with the tank body before being discharged from the output end of the heating jacket.

[0030] Secondly, this utility model provides a crystallization apparatus, comprising:

[0031] The aforementioned crystal growth tank;

[0032] The crystallization tank and the growth tank are connected by a pipeline. The material that has completed growth in the growth tank is transported to the crystallization tank for crystallization.

[0033] Compared with the prior art, the beneficial effects of this utility model are:

[0034] This invention incorporates a heating device and a cooling device. When the temperature inside the tank is higher than required, the cooling device can be used to lower the temperature. When the temperature inside the tank is lower than required, the heating device can be used to heat the temperature, thereby enabling the temperature inside the crystal growth tank to be controlled according to the needs. Attached Figure Description

[0035] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0036] Figure 1 This is a perspective view of the crystallization apparatus of this utility model;

[0037] Figure 2 This is a perspective view of the crystal growth vessel of this utility model;

[0038] Figure 3 This is a structural diagram of the crystal growth tank in Embodiment 3 of this utility model;

[0039] Figure 4 This is a perspective view of the cooling pipe and connecting pipe of this utility model.

[0040] Figure 5 This is a perspective view of the blade of this utility model, which is plate-shaped;

[0041] Figure 6 This is a structural diagram of the crystal growth tank in Embodiment 4 of this utility model;

[0042] Figure 7 This is a perspective view of the support plate of this utility model;

[0043] Figure 8 This is a perspective view of the blades of this utility model spirally wound around the outer wall of the rotating shaft;

[0044] Figure 9 This is a perspective view of the cooling pipe of this utility model, which is a spiral tube.

[0045] In the diagram: 1. Tank body; 11. Stirring device; 12. Heating device; 13. Cooling device; 111. Rotating shaft; 112. Blades; 113. Power source; 121. Heating jacket; 131. Cooling pipe; 132. Feed pipe; 133. Discharge pipe; 134. Support plate; 1311. U-shaped pipe; 1312. Connecting pipe; 1341. Connecting port; 2. Crystallization tank. Detailed Implementation

[0046] 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.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Example 1

[0049] Please refer to Figure 1-9 This utility model provides a crystal growth device, which includes a crystal growth tank and a crystallization tank 2, and the crystal growth tank and the crystallization tank 2 are connected by a pipe.

[0050] In the prior art, crystal growth and crystallization are carried out in the same crystal growth tank. This utility model modifies the traditional crystal growth tank to separate the crystal growth and crystallization processes, allowing crystal growth and crystallization to be carried out simultaneously (in the traditional production process, crystallization can only be carried out after crystal growth is completed), thus realizing continuous production and improving production efficiency.

[0051] It should be noted that a pump is also installed on the pipeline connecting the growth tank and crystallization tank 2 to facilitate the transfer of materials.

[0052] Example 2

[0053] The crystal growth vessel was improved based on Example 1.

[0054] refer to Figure 2-9The crystallization tank includes a tank body 1. To achieve temperature control, a heating device 12 and a cooling device 13 are provided. The heating device 12 is used for heating, and the cooling device 13 is used for cooling. When the temperature of the material in the tank body 1 is higher than the required temperature, the material is cooled down by the cooling device 13; when the temperature of the material in the tank body 1 is lower than the required temperature, the material is heated by the heating device 12.

[0055] It should be noted that a temperature detection device is installed inside tank 1, and the temperature detection device is existing technology.

[0056] As a further option, the cooling device 13 adopts a cooling pipe 131 and is installed inside the tank body 1. The two ends of the cooling pipe 131 are connected to the feed pipe 132 and the discharge pipe 133, respectively. The feed pipe 132 and the discharge pipe 133 extend out of the tank body 1. The cooling medium is input into the cooling pipe 131 through the feed pipe 132 and then discharged through the discharge pipe 133.

[0057] Cooling media can be air, water, oil, quenching fluid, salt bath, gas, brine, alkaline water, machine oil, nitrates, polyvinyl alcohol, trinitrate solution, water-soluble quenching agents, etc.

[0058] It should be noted that the transportation of the cooling medium also requires a power source. For example, gas can be powered by a compressor, fan, vacuum pump, etc., while liquid can be powered by a pump.

[0059] As a further solution, the heating device 12 adopts a heating jacket 121, which is installed on the outer wall of the tank 1. It exchanges heat with the tank 1 through the heating medium, and further exchanges heat with the material through the tank 1 to achieve the heating of the material.

[0060] The heating medium can be air, water, oil, quenching fluid, salt bath, gas, brine, alkaline water, machine oil, nitrate, polyvinyl alcohol, trinitrate solution, water-soluble quenching agent, etc.

[0061] It should be noted that the heating medium transportation also requires a power source. For example, gas can be powered by a compressor, fan, vacuum pump, etc., while liquid can be powered by a pump.

[0062] It should be noted that by changing the medium inside the cooling device 13, the cooling device 13 can also be used for heating; by changing the medium inside the heating device 12, the heating device 12 can also be used for cooling.

[0063] It should be noted that since the crystal growth process requires cooling, the cooling device 13 is placed inside the tank 1. Since the cooling pipe 131 is in direct contact with the material, the heat exchange process does not require heat transfer through the tank 1, which can improve the cooling efficiency.

[0064] It should be noted that the heating device 12 can also be implemented in other ways, such as resistance heating, induction heating, electric arc heating, water resistance heating, infrared heating, microwave heating, vapor deposition heating, etc.

[0065] As a further solution, a stirring device 11 is also installed inside the tank 1. The stirring device 11 includes a power source 113, a rotating shaft 111, and blades 112. The blades 112 are installed on the outer wall of the rotating shaft 111. The power source 113 drives the rotating shaft 111 to rotate, and the rotation of the rotating shaft 111 drives the blades 112 to rotate, thereby driving the material flow. The material flow can improve the efficiency of heat transfer.

[0066] Example 3

[0067] refer to Figure 4 , Figure 9 The structure of cooling pipe 131 is described in detail.

[0068] One option for cooling pipe 131 is to use a spiral tube.

[0069] Another option for the cooling pipe 131 is to use a U-shaped pipe 1311 and a connecting pipe 1312. Multiple U-shaped pipes 1311 are arranged in a ring array and connected to each other through the connecting pipe 1312.

[0070] By adopting the above two schemes, the surface area of ​​the cooling pipe 131 can be increased, the contact area between the material and the cooling pipe 131 can be increased, and the heat exchange efficiency can be improved.

[0071] refer to Figure 3 , Figure 4 , Figure 5 As a preferred embodiment, a stirring device 11 and a cooling pipe 131 are used. The cooling pipe 131 is located outside the stirring device 11, and the blades 112 are plate-shaped and arranged vertically. In use, the rotating shaft 111 rotates, driving the blades 112 to rotate. The rotation of the blades 112 pushes the material from the area inside the cooling pipe 131 to the area outside the cooling pipe 131, where it exchanges heat with the cooling pipe 131. After the blades 112 pass, the material enters the cooling pipe 131 from the outside and exchanges heat with it again. Because the material is in a flowing state, the efficiency of heat exchange between the materials is improved, and the efficiency of heat exchange between the material and the cooling pipe 131 is also improved.

[0072] It should be noted that the number of stirring devices 11 and cooling devices 13 can also be multiple.

[0073] Example 4

[0074] To improve the stability of the cooling pipe 131, a support plate 134 is provided to fix the cooling pipe 131 relatively to the support plate 134. A connecting port 1341 is provided on the support plate 134, allowing materials inside and outside the support plate 134 to exchange heat and flow through the connecting port 1341. After the position of the cooling pipe 131 is fixed, collisions between the cooling pipe 131 and the blade 112 can be avoided.

[0075] The cooling pipe 131 can be installed inside the support plate 134 or fixed to one side of the cooling pipe 131.

[0076] The support plate 134 is an annular structure with openings at both ends. The support plate 134 can be fixed inside the tank 1. The support plate 134 is fixed by setting a plate on the outer wall of the support plate 134 and fixing the other end of the plate to the inner wall of the tank 1. At this time, the connecting port 1341 can be the opening at the upper and lower ends of the annular support plate 134, or the connecting port 1341 can be a through hole (not shown in the figure) set on the support plate 134.

[0077] It should be noted that other methods can be used to replace the support plate 134 to achieve the function of fixing the cooling pipe 131, such as using clips.

[0078] refer to Figure 6 , Figure 7 , Figure 8 As a preferred embodiment, a stirring device 11 and a cooling pipe 131 are used. The stirring device 11 is located inside the support plate 134, and the cooling pipe 131 is set inside the support plate 134. The blades 112 are spirally wound around the outer wall of the rotating shaft 111. The support plate 134 is fixed to the inner bottom surface of the tank 1, and a through groove (equivalent to a connecting port 1341) is opened at the lower end of the support plate 134, so that connecting ports 1341 can be formed at the upper and lower ends of the support plate 134 respectively.

[0079] It should be noted that there is at least one through-slot.

[0080] In operation, the rotating shaft 111 drives the blades 112 to rotate, pushing the material inside the support plate 134 vertically downwards. The material then enters the area between the support plate 134 and the inner wall of the tank 1 through the lower connecting port 1341, and moves vertically upwards above the support plate 134. As the material inside the support plate 134 moves downwards, the material above the support plate 134 moves into the support plate 134 under pressure and gravity, thus forming a ring-shaped, circulating flow channel. During this flow, heat exchange occurs through contact with the support plate 134 and the tank 1. With this design, because the flow channel is formed, the material can circulate along it, resulting in better heat exchange.

[0081] It should be noted that the flow direction of the material can also be changed by changing the rotation direction of the shaft, so that the material inside the support plate 134 moves upward and the material outside the support plate 134 moves downward.

[0082] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crystal growth vessel, comprising a vessel body (1), characterized in that, The tank (1) is also equipped with: Heating device (12) and cooling device (13) work together to regulate crystal growth temperature; The cooling device (13) includes: Cooling pipe (131) is installed inside tank (1); The feed pipe (132) has one end connected to the input end of the cooling pipe (131) and the other end of the feed pipe (132) extends out of the tank body (1); The discharge pipe (133) has one end connected to the output end of the cooling pipe (131) and the other end of the discharge pipe (133) extends out of the tank (1); The cooling medium enters the cooling pipe (131) through the feed pipe (132) and is discharged from the discharge pipe (133); The heating device (12) includes: Heating jacket (121) is installed on the outer wall of tank body (1); The heating medium enters the heating jacket (121) along the input end of the heating jacket (121) and exchanges heat with the tank (1). After exchanging heat, the heating medium is discharged from the output end of the heating jacket (121).

2. The crystal growth vessel according to claim 1, characterized in that, Cooling pipe (131) includes: U-shaped tubes (1311) and connecting tubes (1312), multiple U-shaped tubes (1311) are connected end to end through connecting tubes (1312) to form an annular cooling tube (131).

3. The crystal growth vessel according to claim 1, characterized in that, The cooling pipe (131) is a spiral pipe.

4. The crystal growth vessel according to claim 2 or 3, characterized in that, The tank (1) is also equipped with a stirring device (11), which includes: A rotating shaft (111) and blades (112) are provided. Multiple blades (112) are fixedly installed on the outer wall of the rotating shaft (111), and a cooling pipe (131) is sleeved on the outside of the multiple blades (112).

5. The crystal growth vessel according to claim 4, characterized in that, The cooling device (13) also includes: The support plate (134) and the cooling pipe (131) are fixed relative to the support plate (134); At least one connection port (1341) is provided, through which the material inside the support plate (134) exchanges heat with the material outside the support plate (134).

6. The crystal growth vessel according to claim 5, characterized in that, One part of the connecting port (1341) is located at one end of the support plate (134), and the other part of the connecting port (1341) is located at the other end of the support plate (134).

7. The crystal growth vessel according to claim 6, characterized in that, Multiple blades (112) are spirally wound around the outer wall of the shaft (111).

8. A crystallization apparatus, characterized in that, include: The crystal growth vessel according to any one of claims 1-7 above; The crystallization tank (2) and the crystal growth tank are connected by a pipeline. The material that has completed crystal growth in the crystal growth tank is transported to the crystallization tank (2) for crystallization.

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