Crystallization assisting groove and crystallization assisting system

Abstract

The utility model relates to crystallization assisting equipment, in particular to a crystallization assisting tank and a crystallization assisting system. The utility model discloses a crystallization assisting tank which comprises a tank body and a speed-adjustable stirring device arranged in the tank body, and the tank body is cooled through a cooling device; the tank body comprises a first split body, a second split body and a third split body which are sequentially connected in series and in parallel; a feeding hole is formed in the upper part of the third split body; and a discharge port is formed in the lower part of the second split body. According to the crystallization assisting tank, the cooling device is used for cooling, crystals can be promoted to be further separated out, the separated crystals can be rapidly led out to the outside through the speed-adjustable stirring device, and the treatment efficiency of the crystals is improved.

Description

Technical Field

[0001] The present application relates to a crystal-aiding device, and in particular to a crystal-aiding tank and a crystal-aiding system. Background Art

[0002] Seawater desalination is the process of using technical means to process seawater into fresh water for human use. The commonly used seawater desalination equipment is as follows:

[0003] Multi-Stage Flash Distillation: It is a thermal desalination technology. It introduces heated seawater into multiple flash chambers with gradually decreasing pressure. As the seawater pressure decreases, water vapor will separate from the seawater and condense to obtain fresh water. The advantages of multi-stage flash distillation technology are mature technology, simple equipment and large output. However, the disadvantages are high energy consumption, large amount of heat energy required, and large amount of concentrated brine.

[0004] Currently, the concentrated liquid obtained through multi-stage flash evaporation is a high-temperature concentrated liquid. Direct filtration causes part of the dissolved matter to dissolve in the concentrated liquid, resulting in a low recovery rate of crystallization and crystal liquid. Therefore, it is necessary to add a crystal-aiding tank to cool the high-temperature concentrated liquid.

[0005] In addition, the added crystal-assisting tank can not only be used in the field of seawater desalination, but can also be used for crystallization in the chemical and agricultural fields according to actual adjustments.

[0006] To this end, the present application provides a crystal-assisting tank and a crystal-assisting system. Utility Model Content

[0007] In order to overcome the shortcomings of the prior art, a crystal-aiding trough described in the present application can promote further precipitation of crystals by cooling with a cooling device, and can quickly export the precipitated crystals to the outside through an adjustable speed stirring device, thereby improving the processing efficiency of the crystals.

[0008] The technical solution adopted by this application to solve its technical problem is:

[0009] The first object of the present application is to provide a crystal-assisting tank, comprising a tank body, an adjustable speed stirring device arranged in the tank body, and the tank body is cooled by a cooling device;

[0010] The tank body comprises a first sub-body, a second sub-body and a third sub-body which are connected in series and in parallel in sequence;

[0011] A material inlet is arranged at the upper part of the third sub-body; and a material discharge port is arranged at the lower part of the second sub-body.

[0012] Furthermore, an air extraction port is provided at the upper portion of the second split body.

[0013] Furthermore, low-temperature saturated concentrated brine is provided in the cooling device.

[0014] Furthermore, the cooling device is sleeved on the outside of the crystal-aiding groove.

[0015] Furthermore, the adjustable speed stirring device includes a stepless speed regulating motor and a stirring paddle connected to the stepless speed regulating motor; the stirring paddle rotates horizontally.

[0016] Furthermore, the stirring part of the stirring paddle extends to the first sub-body, the second sub-body, and the third sub-body; and the stepless speed regulating motor is arranged outside the first sub-body.

[0017] Furthermore, the stirring paddle is provided with ≥4 blades; and the number of blades on the stirring paddle corresponding to the second split body is ≥2.

[0018] The second purpose of the present application is to provide a crystal-raising system, including the crystal-raising tank described above.

[0019] Furthermore, the discharge port is connected to a discharge pump.

[0020] Furthermore, the feed inlet is connected to an evaporator.

[0021] The beneficial effects of this application are:

[0022] The crystal-aiding tank of the present application cools down the high-temperature concentrated liquid through a cooling device, thereby effectively controlling the temperature of the high-temperature concentrated liquid; the tank body of the crystal-aiding tank is designed as a separate structure, which can conveniently add high-temperature concentrated liquid or remove crystals during the production process, and is also convenient for cleaning and maintenance of the equipment.

[0023] The crystallization system described in this application integrates multiple devices, such as a crystallization tank, a discharge pump, and an evaporator, to form a complete production process. The design of the crystallization system simplifies the operation process, reduces manual intervention, reduces the difficulty of operation, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the structure of the crystal-aiding tank described in this application;

[0026] Figure 2 is a top view of the crystal-assisting trough described in the present application;

[0027] Figure 3 is a cross-sectional schematic diagram of the crystal-aiding trough described in the present application;

[0028] Among them: 1. trough body; 2. adjustable speed stirring device; 3. cooling device; 11. first sub-body; 12. second sub-body; 13. third sub-body; 14. inlet; 15. discharge port; 16. exhaust port; 21. stepless speed regulating motor; 22. stirring paddle; 23. blades. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the present application in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present application. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features created in this application can be combined interactively without conflicting with each other.

[0030] On the one hand, this application provides Figure 1-3 A crystal-assisting tank shown includes a tank body 1, an adjustable speed stirring device 2 disposed in the tank body 1, and the tank body 1 is cooled by a cooling device 3;

[0031] The tank body 1 comprises a first split body 11, a second split body 12, and a third split body 13 which are connected in series and in parallel in sequence;

[0032] A material inlet 14 is disposed at the upper portion of the third body 13 , and a material discharge port 15 is disposed at the lower portion of the second body 12 .

[0033] Specifically, the crystallization tank can effectively control the temperature of the high-temperature concentrated liquid by using a cooling device to cool the high-temperature concentrated liquid, thereby promoting the precipitation of crystals; this can improve the efficiency and purity of the crystallization of the high-temperature concentrated liquid. The solubility of the crystals in the high-temperature concentrated liquid decreases (rapidly decreases) as the temperature decreases, and more crystals can be precipitated, thereby promoting the precipitation of crystals.

[0034] In one embodiment, an air extraction port 16 is provided at the upper portion of the second body 12. Specifically, the tank body is designed as a split structure (first body 11, second body 12, third body 13), so that high-temperature concentrated liquid can be easily added or crystals can be removed during the production process, and it is also convenient to clean and maintain the equipment. The setting of the air extraction port can effectively extract the hot air in the tank body, thereby helping to cool the high-temperature concentrated liquid and facilitating the precipitation of crystals.

[0035] In one embodiment, low-temperature saturated concentrated brine is provided in the cooling device 3. The temperature of the low-temperature saturated concentrated brine is -10°C to 0°C, and can be above 0°C (eg 10°C to 20°C), which can effectively cool the tank body.

[0036] The cooling device 3 is sleeved on the outside of the crystal-aiding tank.

[0037] Specifically, the cooling device 3 can be an existing device such as a jacket or a coil directly mounted outside the crystallization tank. The cooling device is arranged outside the crystallization tank, which can be easily repaired and replaced, and can also reduce the space occupied by the equipment.

[0038] In one embodiment, the adjustable speed stirring device 2 includes a stepless speed regulating motor 21 and a stirring paddle 22 connected to the stepless speed regulating motor 21; the stirring paddle 22 rotates horizontally.

[0039] The stirring portion of the stirring paddle 22 extends to the first body 11 , the second body 12 , and the third body 13 ; the stepless speed regulating motor 21 is disposed outside the first body 11 .

[0040] Specifically, the stepless speed regulating motor can conveniently adjust the rotation speed of the stirring paddle, thereby controlling the extraction speed of the crystals.

[0041] In one embodiment, the stirring paddle 22 is provided with ≥4 blades 23 ; the number of blades 23 on the stirring paddle 22 corresponding to the second split body 12 is ≥2.

[0042] Specifically, the design of the stirring paddle enables it to stir the high-temperature concentrated liquid in the tank in all directions, thereby making the precipitation of crystals more uniform and rapid; the increase in the number of blades can increase the stirring effect of the stirring paddle and further promote the precipitation of crystals.

[0043] Therefore, the specific operation process of the above-mentioned crystal-assisting tank is as follows:

[0044] The high-temperature concentrated liquid is poured into the feed port of the crystal-aiding tank and stirred by an adjustable-speed stirring device to fully mix the high-temperature concentrated liquid.

[0045] The cooling device is started to cool down the high-temperature concentrated liquid in the crystallization tank, and the air is extracted through the exhaust port. The cooling device can use existing devices such as jackets or coils, and use low-temperature saturated concentrated brine as a cooling medium to reduce the temperature of the high-temperature concentrated liquid to the temperature required for crystallization.

[0046] The crystals are uniformly precipitated in the crystallization tank by stirring with an adjustable speed stirring device. The stirring paddle can be designed with multiple blades to increase the stirring effect and promote the precipitation of crystals.

[0047] When the crystals precipitate to the desired size and content, the cooling device is turned off and the crystals are discharged from the discharge port using a discharge pump.

[0048] The above-mentioned crystal-assisting tank achieves the following beneficial effects:

[0049] Cooling effect: The crystallization tank cools down the high-temperature concentrated liquid through the cooling device, effectively controlling the temperature of the high-temperature concentrated liquid. This helps to promote the precipitation of crystals and improve the crystallization efficiency and purity of the high-temperature concentrated liquid. The solubility of crystals decreases as the temperature decreases, so rapid cooling can promote the precipitation of more crystals.

[0050] Split structure design: The body of the crystallization tank is designed as a split structure, including the first split, the second split and the third split. This structure makes it easy to add high-temperature concentrate or take out crystals during the production process, and also makes it easy to clean and maintain the equipment. This design improves the practicality and convenience of the equipment.

[0051] Air extraction port setting: An air extraction port is set at the upper part of the second split body, which can effectively extract the hot air in the tank. This helps to speed up the cooling speed of the high-temperature concentrated liquid and further promote the precipitation of crystals. At the same time, it also helps to maintain a uniform temperature in the tank and improve the crystallization effect.

[0052] Low-temperature saturated brine cooling: The cooling device is equipped with low-temperature saturated brine, and its temperature range is -10℃~0℃. This low-temperature saturated brine can effectively cool the tank body and improve the cooling effect. At the same time, using low-temperature saturated brine as a cooling medium also reduces energy consumption and equipment costs.

[0053] Cooling device: The cooling device is set outside the crystal-assisting tank, which is convenient for maintenance and replacement of the cooling device and reduces the space occupied by the equipment. This design not only ensures the cooling effect, but also improves the maintainability of the equipment.

[0054] Adjustable speed stirring device: The crystallization tank is equipped with an adjustable speed stirring device, including a stepless speed regulating motor and a stirring paddle. By adjusting the stepless speed regulating motor, the speed of the stirring paddle can be easily changed to control the crystallization speed. This design makes the operation more flexible, and the stirring speed can be adjusted according to actual needs to optimize the crystallization process.

[0055] All-round stirring: The design of the stirring paddle enables it to stir the high-temperature concentrated liquid in the tank in all directions, making the crystals precipitate more evenly and quickly. The rotation of the stirring paddle blades can effectively break up the crystals in the high-temperature concentrated liquid and promote the uniform precipitation of crystals. This design improves the crystallization effect and the purity of the product.

[0056] On the other hand, the present application provides a crystal-aiding system, comprising the crystal-aiding tank described above, wherein the discharge port 15 is connected to a discharge pump, and the inlet port 14 is connected to an evaporator.

[0057] Specifically, the discharge pump transfers the crystals discharged from the discharge port to the next process; and the inlet can be connected to the high-temperature concentrated liquid discharged from the evaporator, thereby realizing rapid processing of the high-temperature concentrated liquid.

[0058] Continuous production capability: The crystallization system can realize a continuous production process by discharging the crystals through the discharge pump. This continuous production method can improve production efficiency, reduce production costs, and ensure stable product output.

[0059] Integrated operation: The crystallization system integrates multiple devices, such as crystallization tank, discharge pump and evaporator, to form a complete production process. This integrated design simplifies the operation process, reduces manual intervention, reduces the difficulty of operation, and improves production efficiency.

[0060] The above is a specific description of the preferred implementation of the present application, but the invention of the present application is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A crystal-assisting tank, characterized in that: It comprises a tank body (1), an adjustable speed stirring device (2) arranged in the tank body (1), and the tank body (1) is cooled by a cooling device (3); The tank body (1) comprises a first sub-body (11), a second sub-body (12), and a third sub-body (13) which are sequentially connected in series and in parallel; A material inlet (14) is arranged at the upper part of the third sub-body (13); and a material discharge port (15) is arranged at the lower part of the second sub-body (12).

2. The crystal-aiding tank according to claim 1, characterized in that: An air extraction port (16) is provided at the upper portion of the second split body (12).

3. The crystal-aiding tank according to claim 1, characterized in that: The cooling device (3) is provided with low-temperature saturated concentrated brine.

4. The crystal-aiding tank according to claim 3, characterized in that: The cooling device (3) is sleeved on the outside of the crystal-aiding tank.

5. The crystal-aiding tank according to claim 1, characterized in that: The adjustable speed stirring device (2) comprises a stepless speed regulating motor (21) and a stirring paddle (22) connected to the stepless speed regulating motor (21); the stirring paddle (22) rotates horizontally.

6. The crystal-aiding tank according to claim 5, characterized in that: The stirring portion of the stirring paddle (22) extends to the first sub-body (11), the second sub-body (12), and the third sub-body (13); and the stepless speed regulating motor (21) is arranged outside the first sub-body (11).

7. The crystal-aiding tank according to claim 6, characterized in that: The stirring paddle (22) is provided with ≥4 blades (23); the number of blades (23) on the stirring paddle (22) corresponding to the second split body (12) is ≥2.

8. A crystal-assisting system, characterized in that: It comprises the crystal-aiding groove as described in any one of claims 1 to 7.

9. The crystal assisting system according to claim 8, characterized in that: The discharge port (15) is connected to a discharge pump.

10. The crystal assist system according to claim 8, characterized in that: The feed inlet (14) is connected to the evaporator.

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