A drying device for high-salinity wastewater evaporation crystallization mother liquor

Abstract

A kind of drying device for high-salinity wastewater evaporation crystallization mother liquor, belong to drying device technical field.The device is for the problem of high cost and inconvenient use of existing large equipment to handle small amount of mother liquor.The gist is that there is a box for storing mother liquor, electric heating rod is arranged in the box, two sides have side plates, hollow rolling roller is rotatably installed between the two plates, transmission rod is connected between the roller and the side plate, and the roller is inserted into the box at low position;Slow rotation assembly is arranged outside one side plate, scraper is arranged on the top of the box and abuts against the outer wall of the roller, and receiving box is arranged below the scraper;Slow rotation assembly comprises mounting frame, driving motor, small gear and large gear engaged with the small gear;Large and small gears are provided with protective shell with heat dissipation holes;The two sides of the scraper are fixed to the box by mounting piece, and the two sides of the receiving box are provided with L-shaped insertion rod inserted into U-shaped insertion bracket on the box;Universal wheel, discharge pipe and hand screw valve are arranged at the bottom of the box.The device has small volume, low cost, is convenient to move and maintain.

Description

Technical Field

[0001] This utility model relates to the field of drying device technology, and in particular to a drying device for evaporating crystallization mother liquor from high-salt wastewater. Background Technology

[0002] In the field of high-salt wastewater treatment, a certain amount of mother liquor is generated after evaporation and crystallization, and this mother liquor needs to be further dried.

[0003] Traditional devices used for drying mother liquor from evaporation and crystallization of high-salt wastewater are mostly large-scale equipment. These large-scale devices have obvious drawbacks when drying small amounts of mother liquor. On the one hand, their purchase cost is high, which puts a huge investment pressure on laboratories, small factories and other scenarios with limited budgets. On the other hand, large-scale equipment is complex to operate, requires high technical skills from operators, and occupies a lot of space. It is extremely inconvenient to use in scenarios where a small amount of mother liquor is dried, resulting in waste of resources.

[0004] To address the aforementioned problems, this utility model document proposes a drying device for the mother liquor of high-salt wastewater evaporation and crystallization. Utility Model Content

[0005] This invention provides a drying device for mother liquor from the evaporation and crystallization of high-salt wastewater, which solves the shortcomings of existing technologies, such as high cost and inconvenience in processing small amounts of mother liquor with large equipment.

[0006] This utility model provides the following technical solution: A drying device for evaporating and crystallizing mother liquor from high-salt wastewater, comprising: A tank for storing mother liquor to be dried has an electric heating rod fixedly installed at the bottom of its inner wall. Side plates are fixed to both sides of the outer wall of the tank by bolts. A hollow rolling roller is rotatably installed between the two side plates. A transmission rod is fixedly installed in the center of both sides of the hollow rolling roller. The other end of the transmission rod is rotatably connected to the inner wall of the corresponding side plate through a bearing. The lower part of the hollow rolling roller extends into the tank. A slow-rotation component is installed on the outer wall of one of the side plates. A scraper for scraping off salt is installed on the top of the tank. The top of the scraper abuts against the outer wall of the hollow rolling roller. A receiving box is installed below the scraper.

[0007] In one possible design, the slow-rotating assembly includes a mounting bracket fixedly mounted on the outer wall of one of the side plates, a drive motor fixedly mounted on the top of the mounting bracket, a pinion fixedly mounted on the other end of the output shaft of the drive motor, and a large gear fixedly mounted on the other end of one of the transmission rods passing through the outer wall of the corresponding side plate, the large gear meshing with the pinion.

[0008] In one possible design, the large gear and the small gear are covered with protective shells, which are fixed to the outer wall of the corresponding side plate by bolts. A row of heat dissipation holes is provided on both sides of the protective shells, and a through hole is provided on the protective shells for the output shaft of the drive motor to pass through.

[0009] In one possible design, mounting plates are fixedly provided on both sides of the scraper, and the mounting plates are fixed to the outer wall of the housing by bolts.

[0010] In one possible design, L-shaped inserts are fixedly installed on both sides of the outer wall of the receiving box, and U-shaped brackets for inserting the corresponding L-shaped inserts are fixedly installed on the outer wall of the box.

[0011] In one possible design, casters are fixedly installed at the four corners of the bottom of the box, and a discharge pipe is connected to the lower edge of the box to facilitate the discharge of cleaning wastewater. A hand-tight valve is installed on the discharge pipe.

[0012] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0013] The working principle and usage process of this technical solution are as follows: During use, the high-salt wastewater evaporation crystallization mother liquor to be dried is poured into the tank. The liquid level must be higher than the lowest point of the hollow rolling roller to allow salt to adhere. After the electric heating rod is turned on by the matching temperature controller, the electric heating rod starts working and generates heat to heat the mother liquor in the tank, thereby heating the surface of the hollow rolling roller. Then, the drive motor is started, and the output shaft of the drive motor drives the small gear to rotate. Since the large gear and the small gear mesh with each other, the large gear will rotate accordingly. The large gear is fixed on the transmission rod, which is connected to the hollow rolling roller, thus driving the hollow rolling roller to rotate slowly. During the rotation, the outer wall will be covered with salt from the mother liquor, gradually forming a thin film of salt. As the hollow rolling roller continues to rotate, when its outer wall rotates to the position where it abuts the scraper, the scraper will scrape off the thin film of salt adhering to the outer wall of the hollow rolling roller. The scraped-off salt falls into the receiving box below the scraper. Since the receiving box is fixed by the L-shaped plug and the U-shaped bracket, it is easy to disassemble and clean. When the drying device needs to be moved, it can be easily moved using the casters installed at the four corners of the bottom of the box. After the equipment has been used for a period of time, the inner wall of the box needs to be cleaned. The wastewater after cleaning can be discharged through the drain pipe connected to the bottom edge of the box. The hand-tight valve on the drain pipe can control the discharge of wastewater.

[0014] This utility model has the following beneficial effects: This utility model has a small box size, making it suitable for laboratories, small factories and other scenarios. The equipment investment cost is significantly reduced compared to traditional drum dryers. Furthermore, the side plates, scrapers, receiving boxes and other components are detachable, which facilitates disassembly and maintenance and reduces maintenance costs.

[0015] This invention uses a slow-rotation component to make the hollow rolling roller rotate slowly, allowing sufficient time for a salt film to form on the surface of the hollow rolling roller. The salt is then scraped off by a scraper and falls into a receiving box for unified processing.

[0016] The universal wheels at the bottom of the box facilitate the movement of the device; the discharge pipe and hand-tight valve facilitate the discharge of cleaning wastewater. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a drying device for evaporation crystallization mother liquor of high-salt wastewater provided in an embodiment of this utility model; Figure 2 Another perspective structural schematic diagram of a drying device for evaporating and crystallizing mother liquor of high-salt wastewater provided in an embodiment of this utility model; Figure 3 A schematic diagram of the slow-rotating component structure of a drying device for evaporating and crystallizing mother liquor of high-salt wastewater provided in an embodiment of this utility model; Figure 4 This is a cross-sectional view of the hollow rolling roller of a drying device for evaporating and crystallizing mother liquor of high-salt wastewater, provided in an embodiment of this utility model.

[0018] Reference numerals: 1. Housing; 2. Electric heating rod; 3. Side plate; 4. Hollow rolling roller; 5. Transmission rod; 6. Large gear; 7. Mounting bracket; 8. Drive motor; 9. Small gear; 10. Protective shell; 11. Heat dissipation hole; 12. Scraper; 13. Mounting plate; 14. Receiving box; 15. L-shaped insertion rod; 16. U-shaped insertion bracket; 17. Caster wheel; 18. Discharge pipe; 19. Hand-operated valve. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0021] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0022] Please refer to Figure 1-4 A drying device, comprising: The tank 1 is made of 316L stainless steel. The inner wall surface of the tank 1 is polished to grade 2B to reduce salt adhesion. An electric heating rod 2 is fixedly installed at the bottom of the inner wall of the tank 1 to provide a heat source for heating the mother liquor. The heating tube of the electric heating rod 2 is made of Incoloy 800 nickel-based alloy, the outer shell is made of 316L stainless steel, and the filler is high-purity magnesium oxide powder. The electric heating rod 2 in this device converts electrical energy into heat energy. Heat is generated through internal bundled tubular heating elements. When the temperature controller is activated, the current passes through the heating elements, and the surface temperature of the elements rises rapidly, directly heating the mother liquor in the tank 1.

[0023] Both sides of the outer wall of the box 1 are fixed with side plates 3 by bolts. The same hollow rolling roller 4 made of 316L stainless steel is rotatably installed between the two side plates 3. The center of both sides of the hollow rolling roller 4 is fixed with a transmission rod 5 made of 42CrMo4 alloy steel. The other end of the transmission rod 5 is rotatably connected to the inner wall of the corresponding side plate 3 through a bearing. The lower part of the hollow rolling roller 4 extends into the box 1 so as to pick up the salt in the mother liquor when rotating.

[0024] A slow-rotation assembly is installed on the outer wall of one of the side plates 3. In the slow-rotation assembly, a mounting bracket 7 is fixed on the outer wall of the side plate 3. A drive motor 8 is fixedly installed on the top of the mounting bracket 7. A small gear 9 is fixedly installed at the other end of the output shaft of the drive motor 8. The other end of one of the transmission rods 5 passes through the corresponding outer wall of the side plate 3 and a large gear 6 is fixedly installed thereon. The large gear 6 and the small gear 9 mesh with each other. The gear set is made of 17-4PH stainless steel to improve service life. When the drive motor 8 starts, its output shaft drives the small gear 9 to rotate, which in turn drives the large gear 6 to rotate, and finally makes the hollow rolling roller 4 rotate slowly.

[0025] The large gear 6 and the small gear 9 are covered with a protective shell 10 made of 304 stainless steel and the surface is anodized. The protective shell 10 is fixed to the outer wall of the corresponding side plate 3 by bolts. A row of heat dissipation holes 11 are provided on both sides of the protective shell 10 to dissipate the heat generated during gear transmission. The protective shell 10 is also provided with a through hole for the output shaft of the drive motor 8 to pass through.

[0026] A scraper 12 for scraping off salt is provided on the top of the box 1. The top of the scraper 12 abuts against the outer wall of the hollow rolling roller 4. The blade of the scraper 12 is made of PTFE-coated 316L stainless steel frame. Mounting plates 13 are fixed on both sides of the scraper 12. The mounting plates 13 are fixed to the outer wall of the box 1 with bolts to facilitate the installation and removal of the scraper 12. A receiving box 14 is provided below the scraper 12. L-shaped inserts 15 are fixed on both sides of the outer wall of the receiving box 14. U-shaped brackets 16 for inserting the corresponding L-shaped inserts 15 are fixed on the outer wall of the box 1. The receiving box 14 is fixed by inserting the L-shaped inserts 15 and the U-shaped brackets 16, and is easy to disassemble and clean.

[0027] In practical use, the high-salt wastewater evaporation crystallization mother liquor to be dried is poured into the tank 1, ensuring that the liquid level is higher than the lowest point of the hollow rolling roller 4 so that the salt can adhere. The electric heating rod 2 is turned on by the matching temperature controller, and the electric heating rod 2 starts to work to generate heat to heat the mother liquor in the tank 1, and at the same time heat the surface of the hollow rolling roller 4. After the drive motor 8 is started, the output shaft of the drive motor 8 drives the small gear 9 to rotate, and the large gear 6 rotates accordingly, which in turn drives the hollow rolling roller 4 to rotate slowly. During the rotation, the outer wall of the hollow rolling roller 4 is coated with salt from the mother liquor, and gradually forms a salt film. As the hollow rolling roller 4 continues to rotate, when its outer wall rotates to the position of contact with the scraper 12, the scraper 12 scrapes off the salt film adhering to the outer wall of the hollow rolling roller 4. The scraped-off salt falls into the receiving box 14 for unified treatment.

[0028] This application can be used for drying the mother liquor from the evaporation and crystallization of high-salt wastewater, and can also be used in other fields applicable to this application.

[0029] A drying device for evaporating and crystallizing mother liquor from high-salt wastewater, which is used in the field of drying devices; Please refer to Figure 1-2 Polyurethane casters 17 are fixedly installed at the four corners of the bottom of the box 1 to facilitate the movement of the device. The bottom edge of the box 1 is connected to a discharge pipe 18 made of soluble polytetrafluoroethylene. A hand-tight valve 19 made of unplasticized polyvinyl chloride is installed on the discharge pipe 18 to facilitate the discharge of wastewater after cleaning the inner wall of the box 1.

[0030] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric heating rod 2 and the drive motor 8 are conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0031] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0032] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A drying device for evaporation and crystallization mother liquor from high-salt wastewater, characterized in that, include: A box (1) for storing mother liquor to be dried has an electric heating rod (2) fixedly installed at the bottom of the inner wall of the box (1). Side plates (3) are fixed to both sides of the outer wall of the box (1) by bolts. A hollow rolling roller (4) is rotatably installed between the two side plates (3). A transmission rod (5) is fixedly installed in the center of both sides of the hollow rolling roller (4). The other end of the transmission rod (5) is rotatably connected to the inner wall of the corresponding side plate (3) through a bearing. The lower part of the hollow rolling roller (4) extends into the box (1). A slow rotation component is provided on the outer wall of one of the side plates (3). A scraper (12) for scraping off salt is provided on the top of the box (1). The top of the scraper (12) abuts against the outer wall of the hollow rolling roller (4). A receiving box (14) is provided below the scraper (12).

2. The drying device for mother liquor from high-salt wastewater evaporation and crystallization according to claim 1, characterized in that, The slow-rotation assembly includes a mounting bracket (7) fixedly mounted on the outer wall of one of the side plates (3). A drive motor (8) is fixedly mounted on the top of the mounting bracket (7). A small gear (9) is fixedly mounted on the other end of the output shaft of the drive motor (8). A large gear (6) is fixedly mounted on the other end of one of the transmission rods (5) through the outer wall of the corresponding side plate (3). The large gear (6) meshes with the small gear (9).

3. The drying device for mother liquor from high-salt wastewater evaporation and crystallization according to claim 2, characterized in that, The large gear (6) and the small gear (9) are covered with protective shells (10). The protective shells (10) are fixed to the outer wall of the corresponding side plate (3) by bolts. A row of heat dissipation holes (11) is provided on both sides of the protective shells (10). The protective shells (10) are provided with through holes for the output shaft of the drive motor (8) to pass through.

4. The drying device for mother liquor from high-salt wastewater evaporation and crystallization according to claim 1, characterized in that, Mounting plates (13) are fixedly provided on both sides of the scraper (12), and the mounting plates (13) are fixed to the outer wall of the box (1) by bolts.

5. A drying device for mother liquor from high-salt wastewater evaporation and crystallization according to claim 1, characterized in that, Both sides of the outer wall of the receiving box (14) are fixedly provided with L-shaped plugs (15), and the outer wall of the box (1) is fixedly provided with U-shaped brackets (16) for inserting the corresponding L-shaped plugs (15).

6. A drying device for mother liquor from high-salt wastewater evaporation and crystallization according to claim 1, characterized in that, The four corners of the bottom of the box (1) are fixedly equipped with casters (17), and the lower edge of the box (1) is connected to a discharge pipe (18) for easy discharge of cleaning wastewater. The discharge pipe (18) is equipped with a matching hand-tightening valve (19).

Images