A low-temperature evaporation crystallization device

Abstract

This utility model belongs to the field of wastewater treatment technology and discloses a low-temperature evaporation crystallization device. The technical solution of this utility model includes a housing. A first electric telescopic rod is fixedly installed on the top of the housing. A movable plate is fixedly installed at the lower end of the first electric telescopic rod. Several crystallization plates are fixedly installed on the bottom surface of the movable plate. U-shaped plates are respectively provided on both sides of the crystallization plates. Second electric telescopic rods are rotatably connected to the U-shaped plates via bearings. The second electric telescopic rods are respectively fixedly installed on supports. The supports are respectively fixedly installed on the housing. Several through slots are opened on the housing corresponding to the U-shaped plates. Discharge devices are fixedly installed in the through slots. This device facilitates the evaporation and crystallization of wastewater and allows for easy scraping and collection of the crystals, making it convenient and quick to use.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a low-temperature evaporation crystallization device. Background Technology

[0002] In the field of wastewater treatment, low-temperature evaporation crystallization technology is widely used in the treatment of high-salinity wastewater and industrial wastewater due to its advantages such as low energy consumption and effective recovery of useful substances from wastewater. Existing low-temperature evaporation crystallization equipment typically includes core structures such as an evaporation chamber, a heating device, a crystallization carrier, and a collection component.

[0003] Currently, there are two main types of common equipment structures:

[0004] One type involves fixing the crystallization carrier (such as an evaporation coil or a flat crystallization plate) inside the evaporation chamber and using a heating device to evaporate the wastewater at a low temperature, causing the solute to precipitate on the surface of the crystallization carrier and form crystals.

[0005] Another type uses a rotary crystallizing drum, in which part of the drum is immersed in wastewater. The drum rotates to form crystals on its surface, which are then scraped off with a scraper.

[0006] However, these existing devices have many drawbacks in practical use:

[0007] For fixed crystallization carriers, when crystals accumulate to a certain extent, the machine needs to be stopped for manual cleaning. This is not only cumbersome and time-consuming, but it also affects the processing efficiency. Furthermore, manual scraping can easily damage the surface of the crystallization carrier, reducing the service life of the equipment.

[0008] Although rotary crystallizing drums can achieve continuous scraping, the matching precision between the drum and the scraper is required to be high. If the gap is not properly adjusted, crystal residue or excessive wear of the scraper may occur. At the same time, the rotation of the drum will disturb the wastewater, which may cause some fine crystals to re-integrate into the wastewater, reducing the crystallization recovery rate.

[0009] In addition, the crystallization collection structure of existing equipment is often separate from the evaporation chamber design. After the crystals are scraped off, an additional conveying device (such as a conveyor belt or screw conveyor) is needed to send them to the collection box, which increases the complexity and failure rate of the equipment. Furthermore, crystals are prone to scattering during the conveying process, causing secondary pollution.

[0010] Therefore, there is an urgent need for a low-temperature evaporation crystallization device that can automatically scrape and efficiently collect crystals without affecting the continuous operation of the equipment, in order to solve the problems of cumbersome operation, low efficiency and complex structure in the existing technology. Utility Model Content

[0011] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a low-temperature evaporation crystallization device to solve the problems mentioned in the background art.

[0012] The technical solution adopted by this low-temperature evaporation crystallization equipment to solve its technical problems is as follows:

[0013] A low-temperature evaporation crystallization device is provided, including a housing. A first electric telescopic rod is fixedly installed on the top of the housing. A movable plate is fixedly installed on the lower end of the first electric telescopic rod. Several crystallization plates are fixedly installed on the bottom surface of the movable plate. U-shaped plates are respectively provided on both sides of the crystallization plates. Second electric telescopic rods are rotatably connected to the U-shaped plates through bearings. The second electric telescopic rods are respectively fixedly installed on the brackets. The brackets are respectively fixedly installed on the housing. Several through slots are opened on the housing corresponding to the U-shaped plates. Discharge devices are fixedly installed in the through slots. The housing is provided with a feed inlet and a discharge outlet. A valve is provided on the discharge outlet.

[0014] Furthermore, the discharge device includes a third electric telescopic rod that is fixedly installed in the corresponding through groove, and a support plate is fixedly installed at the top of the third electric telescopic rod. The top surface of the support plate contacts the bottom surface of the corresponding U-shaped plate.

[0015] Furthermore, a collection box is fixedly installed on one side of the box body. The collection box is connected to the inside of the box body through various through slots. One side of the collection box is open and a door is installed by rotation.

[0016] Furthermore, the U-shaped plate has an angled edge on the side closest to the crystallizing plate.

[0017] Furthermore, grooves are respectively opened on both sides of the inner wall of the U-shaped plate, and a horizontal shaft is respectively provided inside the U-shaped plate. The two ends of the horizontal shaft are respectively located in the corresponding grooves. A counterweight wheel is rotatably installed in the middle of the horizontal shaft through a bearing. A bearing seat is rotatably installed on both sides of the counterweight wheel on the horizontal shaft. A shovel plate is provided on one side of the counterweight wheel. The bearing seat is fixedly installed on the corresponding shovel plate. The shovel plate is inclined, with its bottom contacting the bottom surface of the inner wall of the U-shaped plate and its sides having side wings for cleaning the inside of the grooves.

[0018] Furthermore, a distribution plate is provided at the bottom of the box, and several rows of air ducts are fixedly installed on the distribution plate. The air ducts pass through the bottom of the box, and a fan is fixedly installed on the distribution plate. An exhaust port is opened at the top of the box.

[0019] Furthermore, the bottom of the enclosure is fixedly fitted with support legs.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model illustrates a low-temperature evaporation crystallization device. In use, concentrated wastewater is injected into the tank through the inlet, immersing the crystallization plate in the waste liquid. Then, the first electric telescopic rod retracts, pulling the crystallization plate out of the waste liquid, which adheres to the wall and crystallizes on the plate. Next, the second electric telescopic rod extends, aligning the U-shaped plate with the crystallization plate. As the first electric telescopic rod extends and the crystallization plate descends, the U-shaped plate scrapes off the crystals on the plate, collecting them. Then, the second electric telescopic rod retracts, moving the U-shaped plate and aligning it with the through-channel. The crystals in the U-shaped plate are discharged into the through-channel via a discharge device. Repeating this process allows for continuous evaporation and crystallization of wastewater. The device maintains the water level in the tank by continuously injecting concentrated wastewater through the inlet. This device facilitates convenient evaporation and crystallization of wastewater and allows for easy scraping and collection of the crystals, making it convenient and quick to use.

[0022] 2. In a low-temperature evaporation crystallization device according to this utility model, the extension and retraction of the third electric telescopic rod can push the U-shaped plate on the support plate to rotate along the end of the second electric telescopic rod. Then, when the U-shaped plate is aligned with the through groove, the third electric telescopic rod retracts, so that the crystals inside the U-shaped plate are poured into the through groove.

[0023] 3. In the low-temperature evaporation crystallization device of this utility model, when in use, the crystals poured into the through tank fall into the collection box for temporary storage, and the crystals can be collected by opening the box door.

[0024] 4. The low-temperature evaporation crystallization equipment of this utility model, through the design of the bevel, makes it easier for the U-shaped plate to scrape off the crystals on the crystallization plate.

[0025] 5. In the low-temperature evaporation crystallization equipment of this utility model, when the U-shaped plate is tilted, the counterweight wheel rolls forward under the influence of gravity. Through the shovel plate, the crystals in the U-shaped plate can be pushed and the trough can be cleaned, so that the crystals can be easily pushed into the through groove.

[0026] 6. In the example of the low-temperature evaporation crystallization equipment of this utility model, when in use, the air is blown out through the exhaust pipe by the blower, which increases the air flow speed and accelerates the crystallization speed.

[0027] 7. The low-temperature evaporation crystallization equipment of this utility model can be easily supported by the support legs. Attached Figure Description

[0028] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 yes Figure 1 A magnified view of part I.

[0031] In the diagram: 1. Box body; 2. First electric telescopic rod; 3. Movable plate; 4. Crystallizing plate; 5. U-shaped plate; 6. Second electric telescopic rod; 7. Support; 8. Through groove; 9. Valve; 10. Third electric telescopic rod; 11. Support plate; 12. Collection box; 13. Box door; 14. Slide groove; 15. Horizontal shaft; 16. Counterweight wheel; 17. Shaft seat; 18. Shovel plate; 19. Distribution plate; 20. Air duct; 21. Fan; 22. Exhaust port; 23. Support leg. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Example 1:

[0035] like Figure 1 As shown, this embodiment provides a low-temperature evaporation crystallization device, including a housing 1. The housing 1 is equipped with a low-temperature heating device. This application will not elaborate on the existing mature device. A first electric telescopic rod 2 is fixedly installed on the top of the housing 1. A movable plate 3 is fixedly installed on the lower end of the first electric telescopic rod 2. Several crystallization plates 4 are fixedly installed on the bottom surface of the movable plate 3. U-shaped plates 5 are respectively provided on both sides of the crystallization plates 4. A second electric telescopic rod 6 is rotatably connected to the U-shaped plates 5 through bearings. The second electric telescopic rod 6 is fixedly installed on the bracket 7. The bracket 7 is fixedly installed on the housing 1. Several through slots 8 are opened on the housing 1 corresponding to the U-shaped plates 5. Discharge devices are fixedly installed in the through slots 8. The housing 1 is provided with a feed inlet and a discharge outlet. A valve 9 is provided on the discharge outlet.

[0036] In this embodiment, the discharge device includes a third electric telescopic rod 10 that is fixedly installed in the corresponding through groove 8. The top of the third electric telescopic rod 10 is fixedly installed with a support plate 11, and the top surface of the support plate 11 contacts the bottom surface of the corresponding U-shaped plate 5.

[0037] In this embodiment, a collection box 12 is fixedly installed on one side of the box body 1. The collection box 12 is connected to the inside of the box body 1 through various through slots 8. One side of the collection box 12 is open and a door 13 is installed by rotation.

[0038] In this embodiment, the U-shaped plate 5 has an angled edge on the side closest to the crystallizing plate 4.

[0039] In this embodiment, grooves 14 are respectively opened on both sides of the inner wall of the U-shaped plate 5, and a horizontal shaft 15 is respectively provided inside the U-shaped plate 5. The two ends of the horizontal shaft 15 are respectively located in the corresponding grooves 14. The middle part of the horizontal shaft 15 is rotatably mounted with a counterweight wheel 16 through a bearing. The two sides of the counterweight wheel 16 are respectively provided with axle seats 17 rotatably mounted on the horizontal shaft 15. A shovel plate 18 is provided on one side of the counterweight wheel 16. The axle seats 17 are respectively fixedly mounted on the corresponding shovel plates 18. The shovel plates 18 are inclined, with the bottom contacting the bottom surface of the inner wall of the U-shaped plate 5 and side wings for cleaning the inside of the grooves 14 on both sides.

[0040] In this embodiment, a distribution plate 19 is provided at the bottom of the box 1, and several rows of air ducts 20 are fixedly installed on the distribution plate 19. The air ducts 20 pass through the bottom of the box 1 respectively. A fan 21 is fixedly installed on the distribution plate 19, and an exhaust port 22 is opened at the top of the box 1.

[0041] In this embodiment, the bottom of the box 1 is fixedly installed with support legs 23.

[0042] This device controls the first electric telescopic rod 2, the second electric telescopic rod 6, the third electric telescopic rod 10, and the fan 21 via a control panel located outside the housing 1. Specifically, the microcontroller in the control panel is a Siemens S7-200SMART. During operation, concentrated wastewater is injected into the housing 1 through the inlet, immersing the crystallizing plate 4 in the waste liquid. Then, the first electric telescopic rod 2 is controlled to retract, pulling the crystallizing plate 4 out of the waste liquid. The waste liquid adheres to the wall and crystallizes on the crystallizing plate 4. Subsequently, the second electric telescopic rod 6 is controlled to extend, aligning the angle of the U-shaped plate 5 with the crystallizing plate 4. As the first electric telescopic rod 2 extends and the crystallizing plate 4 descends, the U-shaped plate 5 scrapes off the crystals on the crystallizing plate 4, causing them to fall. The crystals are collected by placing them into the U-shaped plate 5. Then, the second electric telescopic rod 6 retracts, the U-shaped plate 5 moves and aligns with the through groove 8, the third electric telescopic rod 10 descends, the U-shaped plate 5 tilts, and the counterweight wheel 16 rolls forward under the influence of gravity. With the assistance of the shovel plate 18, the crystals are shoveled into the through groove 8 and fall into the collection box 12. Then, the third electric telescopic rod 10 extends, the U-shaped plate 5 tilts in the opposite direction, and the counterweight wheel 16 rolls back to its original position. By repeating the above process, the waste liquid can be continuously evaporated and crystallized. The water level in the tank 1 can be maintained by continuously injecting concentrated wastewater through the feed inlet. This device can easily evaporate and crystallize wastewater and can easily scrape and collect the crystals. It is convenient and quick to use.

[0043] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0044] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A low temperature evaporation crystallization apparatus comprising a cabinet (1), characterized in that, The top of the box (1) is fixedly installed with a first electric telescopic rod (2), the lower end of the first electric telescopic rod (2) is fixedly installed with a movable plate (3), the bottom surface of the movable plate (3) is fixedly installed with several crystallizing plates (4), the two sides of the crystallizing plate (4) are respectively provided with U-shaped plates (5), the U-shaped plates (5) are respectively connected to the second electric telescopic rod (6) by bearings, the second electric telescopic rod (6) is respectively fixedly installed on the bracket (7), the bracket (7) is respectively fixedly installed on the box (1), the box (1) is respectively opened with several through slots (8) corresponding to the U-shaped plates (5), the through slots (8) are respectively fixedly installed with discharge devices, the box (1) is provided with a feed port and a discharge port, and the discharge port is provided with a valve (9).

2. The apparatus of claim 1 wherein, The discharge device includes a third electric telescopic rod (10) fixedly installed in the corresponding through groove (8), and a support plate (11) fixedly installed at the top of the third electric telescopic rod (10), with the top surface of the support plate (11) in contact with the bottom surface of the corresponding U-shaped plate (5).

3. The apparatus of claim 1 wherein, A collection box (12) is fixedly installed on one side of the box body (1). The collection box (12) is connected to the inside of the box body (1) through various through slots (8). The collection box (12) has an opening on one side and a door (13) is installed by rotation.

4. The apparatus of claim 1 wherein, The U-shaped plate (5) has an oblique angle on the side near the crystallizing plate (4).

5. The low-temperature evaporation crystallization equipment according to claim 1, characterized in that, The inner wall of the U-shaped plate (5) has grooves (14) on both sides. A horizontal shaft (15) is provided inside the U-shaped plate (5). The two ends of the horizontal shaft (15) are located in the corresponding grooves (14). A counterweight wheel (16) is rotatably installed in the middle of the horizontal shaft (15) through a bearing. A bearing seat (17) is provided on both sides of the counterweight wheel (16) and is rotatably installed on the horizontal shaft (15). A shovel plate (18) is provided on one side of the counterweight wheel (16). The bearing seat (17) is fixedly installed on the corresponding shovel plate (18). The shovel plate (18) is inclined and its bottom is in contact with the bottom surface of the inner wall of the U-shaped plate (5). Side wings for cleaning the inside of the grooves (14) are provided on both sides.

6. The low-temperature evaporation crystallization equipment according to claim 1, characterized in that, The box (1) is provided with a distribution plate (19) at the bottom, and several rows of air ducts (20) are fixedly installed on the distribution plate (19). The air ducts (20) pass through the bottom of the box (1) respectively. A fan (21) is fixedly installed on the distribution plate (19), and an exhaust port (22) is opened on the top of the box (1).

7. The apparatus of claim 1 wherein, The bottom of the box (1) is fixedly installed with support legs (23).

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