Boron-containing solution evaporative crystallization device for boric acid recovery

Abstract

The utility model discloses a boron-containing solution evaporative crystallization device for boric acid recovery. The boron-containing solution evaporative crystallization device comprises a box body, a filtering mechanism used for filtering and crystallizing crystal mush is arranged in the box body, a material stirring mechanism used for stirring the crystal mush is further arranged on the inner side wall of the box body, a bottom plate is fixedly mounted at the bottom of the box body, and a recycling mechanism used for extracting boron is arranged at one end of the top of the bottom plate; through cooperative arrangement of the filtering mechanism and the stirring mechanism, crystal mush can be stirred in the filtering and crystallizing process, so that the crystal mush is uniformly separated during filtering, the required purity is improved, impurities are reduced, blockage is not caused in the separating and crystallizing process, the crystal mush is driven by adopting a stirring mode, and the crystal mush is prevented from being blocked. According to the device, uniform and rapid crystal separation operation is achieved, the requirements of people are met, rotation can be conducted through the filtering mechanism, crystals can be separated, and the material stirring operation can be completed by matching the material stirring mechanism with the filtering mechanism.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to an evaporation and crystallization device for boron-containing solution recovery of boric acid. Background Technology

[0002] Boric acid is an inorganic compound, a white crystalline powder with a slippery feel and no odor. It is widely used in the glass industry. Boric acid solution refers to a solution formed by dissolving boric acid in water, which is usually a clear, colorless, and odorless liquid. This solution has various applications in the medical and skincare fields, including sterilization, disinfection, anti-inflammatory and antipruritic effects, astringency, and wound cleaning.

[0003] Therefore, boric acid can be extracted and recovered from the mother liquor. For example, existing technologies use evaporation devices to recover high-purity sodium borate from boric acid mother liquor. The steam temperature generated in the first-effect evaporator is much higher than 80°C, so using the steam generated in the first-effect evaporator to heat the second and third-effect evaporators can greatly improve energy utilization. However, the above technology still has the following shortcomings: during the crystallization process, clogging easily occurs during filtration and crystallization, resulting in slow crystallization efficiency and effect, which cannot meet the requirements. Utility Model Content

[0004] The purpose of this invention is to provide a boron-containing solution evaporation and crystallization device for boric acid recovery, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an evaporation and crystallization device for boric acid recovery, comprising a housing;

[0006] The interior of the box is equipped with a filtration mechanism for filtering and crystallizing the crystal slurry. The inner side wall of the box is also equipped with a feeding mechanism for agitating the crystal slurry. A bottom plate is fixedly installed at the bottom of the box, and a recovery mechanism for extracting boron is provided at one end of the top of the bottom plate.

[0007] The filtration mechanism includes a collection component, a separation component, and a rotating component. The collection component is located at the bottom of the inner cavity of the housing, the separation component is located on the inner side wall of the housing, and the rotating component is located on the back of the collection component and the separation component.

[0008] The recycling mechanism includes a heating component, a conveying component, and a cooling component. The heating component is located at one end of the top of the base plate, the conveying component is located inside the heating component, and the cooling component is located on one side of the conveying component.

[0009] In one embodiment, the collection assembly includes a first support base, which is fixedly installed at the bottom of the inner cavity of the box, and a first material tray is placed inside the first support base.

[0010] In one embodiment, the separation component includes a second support base, which is fixedly installed in the middle of the inner cavity of the housing. A second material tray is placed inside the second support base, and a filter plate is fixedly installed at the bottom of the inner cavity of the second material tray.

[0011] In one embodiment, the rotating assembly includes a motor, which is fixedly mounted on the top of the housing, and the output shaft of the motor is keyed to a shaft, with a gear fixedly mounted on the outer side of the shaft.

[0012] In one embodiment, the feeding mechanism includes a horizontal plate, which is fixedly installed on the back of the inner cavity of the box. A vertical rod is slidably connected through the bottom of the horizontal plate, and a feeding plate is fixedly installed at the bottom of the vertical rod.

[0013] In one embodiment, the heating assembly includes an outer cylinder, which is fixedly installed at one end of the top of the base plate, and a heating tube is fixedly installed inside the outer cylinder.

[0014] In one embodiment, the conveying assembly includes an inner cylinder that is fixedly mounted through the top of the outer cylinder, and the top of the inner cylinder is connected to a through pipe.

[0015] In one embodiment, the cooling assembly includes a cold air delivery pipe and a water tank. The cold air delivery pipe is connected to one end of a through pipe, and the water tank is fixedly installed on the top of the tank. A feeding pipe is fixedly installed inside the water tank, and the feeding pipe is located inside the cold air delivery pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention, through the combined arrangement of a filtration mechanism and a feeding mechanism, enables the feeding of crystal slurry during the filtration and crystallization process, thereby ensuring uniform separation during filtration, improving the required purity, reducing impurities, and preventing clogging during separation and crystallization. The feeding method moves the crystal slurry to achieve uniform and rapid separation and crystallization to meet people's needs. The filtration mechanism can rotate and separate crystals, while the feeding mechanism, adapted to the filtration mechanism, can complete the feeding operation.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. 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 heating tube structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the motor structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.

[0023] In the picture:

[0024] 1. Box body;

[0025] 2. Filtration mechanism; 21. First support base; 22. First material tray; 23. Second support base; 24. Second material tray; 25. Motor; 26. Shaft; 27. Gear; 28. Filter plate;

[0026] 3. Material feeding mechanism; 31. Horizontal plate; 32. Vertical rod; 33. Material feeding plate;

[0027] 4. Recycling mechanism; 41. Outer cylinder; 42. Heating tube; 43. Inner cylinder; 44. Through pipe; 45. Water tank; 46. Cold air conveying pipe; 47. Feeding pipe;

[0028] 5. Base plate. Detailed Implementation

[0029] 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.

[0030] This utility model provides an evaporation and crystallization device for boric acid recovery, including a housing 1;

[0031] The interior of the box 1 is equipped with a filtration mechanism 2 for filtering and crystallizing the crystal slurry. The inner side wall of the box 1 is also equipped with a feeding mechanism 3 for agitating the crystal slurry. A bottom plate 5 is fixedly installed at the bottom of the box 1. A recovery mechanism 4 for extracting boron is installed at one end of the top of the bottom plate 5. The feeding mechanism 3 is used for feeding during the filtration and separation of the crystal slurry.

[0032] The filtration mechanism 2 includes a collection component, a separation component, and a rotating component. The collection component is located at the bottom of the inner cavity of the housing 1, the separation component is located on the inner side wall of the housing 1, and the rotating component is located on the back of the collection component and the separation component. The cooperation of the collection component, the separation component, and the rotating component facilitates the filtration and separation of the crystal slurry, and the rotating component adapts to the feeding mechanism 3 to complete the feeding operation.

[0033] The recovery mechanism 4 includes a heating component, a conveying component, and a cooling component. The heating component is located at one end of the top of the base plate 5, the conveying component is located inside the heating component, and the cooling component is located on one side of the conveying component. Through the cooperation of the heating component, the conveying component, and the cooling component, the effects of evaporation, conveying, and condensation of the boron-containing solution are achieved.

[0034] Preferred: such as Figure 3 As shown, the collection component includes a first support base 21, which is fixedly installed at the bottom of the inner cavity of the box 1. A first material tray 22 is placed inside the first support base 21, which plays the role of collecting the separated material.

[0035] like Figure 3 As shown, the separation component includes a second support base 23, which is fixedly installed in the middle of the inner cavity of the housing 1. A second material tray 24 is placed inside the second support base 23, and a filter plate 28 is fixedly installed at the bottom of the inner cavity of the second material tray 24. The crystal slurry can be separated by filtration, resulting in solid-liquid separation.

[0036] like Figure 3 As shown, the rotating assembly includes a motor 25, which is fixedly mounted on the top of the housing 1. The output shaft of the motor 25 is keyed to a shaft 26, and a gear 27 is fixedly mounted on the outside of the shaft 26. The rotating assembly will rotate according to the power output, thereby adapting to the feeding mechanism 3 to complete the feeding operation.

[0037] Furthermore, such as Figure 3 As shown, the feeding mechanism 3 includes a horizontal plate 31, which is fixedly installed on the back of the inner cavity of the box 1. A vertical rod 32 is slidably connected through the bottom of the horizontal plate 31. A feeding plate 33 is fixedly installed at the bottom of the vertical rod 32. The feeding plate 33 is equipped with a feeding rod at the bottom to feed the crystal slurry that is rotating and separated at the bottom, so as to improve the required separation effect and efficiency.

[0038] During operation, the condensed crystal slurry falls directly onto both sides of the top of the filter plate 28. At this time, the motor 25 is started and drives the gear 27 to rotate through the shaft 26. While the gear 27 is rotating, it meshes and drives the second material tray 24 and the first material tray 22 to rotate synchronously. The rotation is uniform and slow to avoid spilling the crystal slurry. Then the filter plate 28 performs filtration and separation to separate the solid and liquid. Subsequently, the fixed material feeding plate 33 completes the feeding operation through the feeding rod at its bottom.

[0039] At the same time, when picking up and putting down, push the material plate 33 upward to move the vertical rod 32 upward until it is higher than the corresponding second material tray 24 and first material tray 22. Then move the second material tray 24 and first material tray 22 upward, and they will be higher than the corresponding first support seat 21 and second support seat 23. Then pull them outward to take them out.

[0040] Furthermore, such as Figure 2 As shown, the heating assembly includes an outer cylinder 41, which is fixedly installed at one end of the top of the base plate 5. A heating tube 42 is fixedly installed inside the outer cylinder 41, which realizes the heating operation and facilitates liquid evaporation.

[0041] like Figure 2 As shown, the conveying assembly includes an inner cylinder 43, which is fixedly installed through the top of the outer cylinder 41. The top of the inner cylinder 43 is connected to a through pipe 44, which facilitates the carrying of liquid and the discharge of evaporated gas to a preset position.

[0042] like Figure 2 As shown, the cooling assembly includes a cold air delivery pipe 46 and a water tank 45. The cold air delivery pipe 46 is connected to one end of the through pipe 44. The water tank 45 is fixedly installed on the top of the housing 1. A feeding pipe 47 is fixedly installed inside the water tank 45. The feeding pipe 47 is located inside the cold air delivery pipe 46 and can condense the steam, causing it to liquefy and crystallize to form a crystal slurry.

[0043] First, the boron-containing liquid is added to the inner cylinder 43, and the heating tube 42 is preheated to keep it within the preset temperature range, thereby continuously heating the boron-containing liquid until it evaporates. The liquid then enters the feeding pipe 47 through the through pipe 44. Before this, cooling water is added to the inside of the water tank 45. Then, the cold air delivery pipe 46 is connected to the external refrigeration equipment to form a cold air delivery system, thereby improving the condensation effect and efficiency. During the condensation process, the gas will liquefy and continuously cool to form a crystal slurry, which is then discharged downwards to complete the final crystallization operation.

[0044] 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 boron-containing solution evaporative crystallization apparatus for boron acid recovery, characterized by, The box (1) is provided with a filter mechanism (2) for filtering and crystallizing the slurry inside the box (1), and the inner side wall of the box (1) is also provided with a stirring mechanism (3) for stirring the slurry, and the bottom of the box (1) is fixedly installed with a bottom plate (5), and one end of the top of the bottom plate (5) is provided with a recovery mechanism (4) for boron extraction. The filter mechanism (2) comprises a collecting assembly, a separating assembly and a rotating assembly, the collecting assembly is arranged at the bottom of the inner cavity of the box (1), the separating assembly is arranged on the inner side wall of the box (1), and the rotating assembly is arranged on the back of the collecting assembly and the separating assembly. The recovery mechanism (4) comprises a heating assembly, a conveying assembly and a cooling assembly, the heating assembly is arranged at one end of the top of the bottom plate (5), the conveying assembly is arranged on the inner side of the heating assembly, and the cooling assembly is arranged on one side of the conveying assembly.

2. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 1, wherein: The collecting assembly comprises a first support seat (21), the first support seat (21) is fixedly installed at the bottom of the inner cavity of the box (1), and the first support seat (21) is internally provided with a first material loading disc (22).

3. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 2, wherein: The separating assembly comprises a second support seat (23), the second support seat (23) is fixedly installed at the middle of the inner cavity of the box (1), the second support seat (23) is internally provided with a second material loading disc (24), and the bottom of the inner cavity of the second material loading disc (24) is fixedly installed with a filter plate (28).

4. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 3, wherein: The rotating assembly comprises a motor (25), the motor (25) is fixedly installed at the top of the box (1), the output shaft of the motor (25) is key-connected with a shaft rod (26), and the outer side of the shaft rod (26) is fixedly installed with a gear (27).

5. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 1, wherein: The stirring mechanism (3) comprises a horizontal plate (31), the horizontal plate (31) is fixedly installed on the back of the inner cavity of the box (1), the bottom of the horizontal plate (31) is through-type slidingly connected with a vertical rod (32), and the bottom of the vertical rod (32) is fixedly installed with a stirring plate (33).

6. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 1, wherein: The heating assembly comprises an outer cylinder (41), the outer cylinder (41) is fixedly installed at one end of the top of the bottom plate (5), and the inner side of the outer cylinder (41) is fixedly installed with a heating pipe (42).

7. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 6, wherein: The conveying assembly comprises an inner cylinder (43), the inner cylinder (43) is through-type fixedly installed at the top of the outer cylinder (41), and the top of the inner cylinder (43) is communicated with a through pipe (44). ​ 8. The boron-containing solution evaporation crystallization device for boron acid recovery according to claim 7, characterized in that the cooling assembly comprises a cold gas conveying pipe (46) and a water tank (45), the cold gas conveying pipe (46) is communicated at one end of the through pipe (44), and the water tank (45) is fixedly installed at the top of the box body (1), and a feeding pipe (47) is fixedly installed inside the water tank (45), and the feeding pipe (47) is located inside the cold gas conveying pipe (46). ​

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