A device for treating high-salinity wastewater

Abstract

The utility model relates to high salt wastewater treatment technical field, and disclose a kind of for the treatment device of high salt wastewater, including support, drying pipe, waste heat recovery tank, first inner tube, second inner tube and motor etc. First inner tube and second inner tube are arranged in drying pipe, respectively as sending pipe and back pipe, realize heat secondary utilization. Motor drives shaft, and first helical scraper and second helical scraper are installed on the shaft, first helical scraper scrapes and brushes drying pipe inner wall and first inner tube outer wall impurity, and second helical scraper is sleeved in second inner tube by helical gap, and scrapes and brushes first inner tube inner wall, second inner tube outer wall and inner wall soot. Impurity and soot are respectively discharged through first, second, third discharge pipe. The utility model effectively solves the problem of drying pipe inner wall and pipeline soot in high salt wastewater treatment, avoids the heat exchange reaction efficiency reduction caused by impurity adhesion, guarantees the long-term stable and efficient operation of device, improves energy utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of high-salinity wastewater treatment technology, specifically to a treatment device for high-salinity wastewater. Background Technology

[0002] The high-salinity wastewater treatment device is a treatment device specifically designed for the treatment of high-salinity wastewater. It aims to solve specific problems in the high-salinity wastewater treatment process and improve treatment efficiency and effectiveness.

[0003] In current high-salinity wastewater treatment devices, during the wastewater drying process, impurities generated after drying easily solidify and adhere to the inner wall of the drying pipe and the outer wall of related pipelines. Due to the lack of an effective cleaning structure, these adhered impurities gradually accumulate, leading to a decrease in heat exchange efficiency and affecting the normal operation and treatment effect of the entire wastewater treatment device. On the other hand, in piping systems involving flue gas supply and return, ash accumulation easily occurs on the inner wall of the pipes and in the inter-pipe areas. Existing treatment devices lack specific designs for effectively cleaning ash accumulation in these areas. The accumulation of ash further hinders heat transfer, significantly reducing heat exchange efficiency, increasing energy consumption, and decreasing the overall performance and service life of the device. Therefore, those skilled in the art provide a treatment device for high-salinity wastewater to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a treatment device for high-salt wastewater, which solves the problem that impurities generated during the drying process of waste liquid easily solidify and adhere to the inner wall of the drying tube and the outer wall of related pipes, and that the accumulation of ash on the heat exchange tube further hinders heat transfer, resulting in a significant decrease in heat exchange efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a treatment device for high-salinity wastewater, comprising a support frame, a drying pipe mounted on the support frame, the drying pipe being fixedly installed to the support frame via a first discharge pipe, a waste heat recovery box mounted on one side of the drying pipe, an inlet pipe connected to the upper side of the drying pipe, a first discharge pipe connected to the lower side of the drying pipe, a first inner pipe mounted inside the drying pipe, a second inner pipe mounted inside the first inner pipe, one end of the second inner pipe being connected to the waste heat recovery box, a motor mounted on the end of the drying pipe away from the waste heat recovery box, the motor driving a rotating shaft connected to the output end of the first inner pipe, a first spiral scraper and a second spiral scraper mounted on the rotating shaft, the second spiral scraper being disposed inside the first spiral scraper, and a slit being formed on the second spiral scraper, a second discharge pipe connected to the bottom side of the end of the first inner pipe facing the waste heat recovery box, and a third discharge pipe connected to the bottom side of the end of the second inner pipe facing the waste heat recovery box.

[0006] Preferably, the gap of the second spiral scraper is spiral-shaped, and the second spiral scraper is sleeved with the second inner tube through the gap.

[0007] Preferably, the outer side of the first spiral scraper scrapes against the inner wall of the drying tube, and the inner side of the first spiral scraper scrapes against the outer wall of the first inner tube. After the shaft rotates, the first spiral scraper scrapes the impurities that have solidified on the inner wall of the drying tube and the outer wall of the first inner tube after drying, and finally discharges them through the first discharge pipe, thus avoiding the problem of reduced heat exchange reaction efficiency caused by the adhesion of impurities.

[0008] Preferably, the outer side of the second spiral scraper is disposed between the first inner tube and the second inner tube, and the inner side of the second spiral scraper is disposed inside the second inner tube. When the shaft rotates, the second spiral scraper can scrape the inner wall of the first inner tube, the outer wall of the second inner tube, and the inner wall of the second inner tube, thereby scraping and cleaning the accumulated dust in the first inner tube and the second inner tube. The cleaned accumulated dust is then discharged from the second discharge pipe and the third discharge pipe.

[0009] Compared with the prior art, this utility model provides a device for treating high-salinity wastewater, which has the following beneficial effects:

[0010] Through its design, this high-salt wastewater treatment device achieves wastewater drying via a drying pipe. The first and second inner pipes serve as the flue gas supply and return pipes, respectively, with a rationally arranged pipe structure that allows for secondary heat utilization, facilitating efficient heat transfer and utilization. An inlet pipe and a first outlet pipe are installed on the drying pipe to facilitate the entry of wastewater and the discharge of dried material. A first spiral scraper scrapes the inner wall of the drying pipe and the outer wall of the first inner pipe, promptly removing solidified impurities after drying, which are then discharged through the first outlet pipe, effectively preventing impurities from adhering and affecting heat exchange efficiency. A second spiral scraper, with slits, connects to the second inner pipe, allowing for comprehensive scraping of the inner wall of the first inner pipe, the outer wall of the second inner pipe, and the inner wall itself, cleaning accumulated ash, which is then discharged through the second and third outlet pipes. This prevents ash accumulation from reducing heat exchange efficiency and ensures the long-term stable and efficient operation of the device. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of a device for treating high-salinity wastewater provided in an embodiment of this application.

[0012] Figure 2 This is a cross-sectional view of the drying tube in a high-salt wastewater treatment device provided in an embodiment of this application.

[0013] Figure 3 This is a cross-sectional view of the first inner tube and the second inner tube in a treatment device for high-salt wastewater provided in an embodiment of this application.

[0014] Figure 4This is an enlarged view of the structure of the first spiral scraper and the second spiral scraper in a treatment device for high-salt wastewater provided in an embodiment of this application.

[0015] In the diagram: 1. Support; 2. Drying pipe; 3. Liquid inlet pipe; 4. First discharge pipe; 5. First inner pipe; 6. Second discharge pipe; 7. Second inner pipe; 8. Third discharge pipe; 9. Waste heat recovery box; 10. Motor; 11. Rotating shaft; 12. First spiral scraper; 13. Second spiral scraper; 14. Gap. Detailed Implementation

[0016] 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.

[0017] This utility model provides a technical solution: a device for treating high-salinity wastewater. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a support 1, on which a drying tube 2 is mounted. The drying tube 2 is fixedly installed to the support 1 via a first discharge tube 4. A waste heat recovery box 9 is mounted on one side of the drying tube 2. An inlet pipe 3 is connected to the upper side of the drying tube 2, and a first discharge tube 4 is connected to the lower side of the drying tube 2. A first inner tube 5 is mounted inside the drying tube 2, and a second inner tube 7 is mounted inside the first inner tube 5. One end of the second inner tube 7 is connected to the waste heat recovery box 9. A motor 10 is mounted on the end of the drying tube 2 away from the waste heat recovery box 9. The motor 10 drives a rotating shaft 11 connected to the output end of the first inner tube 5. A first spiral scraper 12 and a second spiral scraper 13 are mounted on the rotating shaft 11. The second spiral scraper 13 is located inside the first spiral scraper 12 and has a slit 14. A second discharge tube 6 is connected to the bottom side of the end of the first inner tube 5 facing the waste heat recovery box 9, and a third discharge tube 8 is connected to the bottom side of the end of the second inner tube 7 facing the waste heat recovery box 9.

[0018] The second spiral scraper 13 has a spiral-shaped slit 14. The second spiral scraper 13 is connected to the second inner tube 7 through the slit 14. The outer side of the first spiral scraper 12 scrapes the inner wall of the drying tube 2, and the inner side of the first spiral scraper 12 scrapes the outer wall of the first inner tube 5. After the rotating shaft 11 rotates, the first spiral scraper 12 scrapes the impurities that have solidified on the inner wall of the drying tube 2 and the outer wall of the first inner tube 5 after drying. Finally, they are discharged through the first discharge pipe 4. The outer side of the second spiral scraper 13 is set between the first inner tube 5 and the second inner tube 7, and the inner side of the second spiral scraper 13 is set inside the second inner tube 7. When the rotating shaft 11 rotates, the second spiral scraper 13 can scrape the inner wall of the first inner tube 5, the outer wall of the second inner tube 7, and the inner wall of the second inner tube 7, thereby scraping and cleaning the accumulated dust in the first inner tube 5 and the second inner tube 7. The cleaned accumulated dust is discharged from the second discharge pipe 6 and the third discharge pipe 8.

[0019] The working principle of this device is as follows: the high-salt wastewater treatment device consists of a drying pipe 2, a waste heat recovery box 9, a first inner pipe 5, and a second inner pipe 7. The drying pipe 2 is used for drying the waste liquid. The first inner pipe 5 and the second inner pipe 7 are respectively the flue gas supply pipe and the flue gas return pipe. The liquid inlet pipe 3 is connected to the upper side of the drying pipe 2, and the first discharge pipe 4 is connected to the lower side of the drying pipe 2. The second discharge pipe 6 and the third discharge pipe 8 are respectively connected to the lower side of the first inner pipe 5 and the second inner pipe 7 near the waste heat recovery box 9.

[0020] A motor 10 is installed at the end of the drying tube 2 away from the waste heat recovery box 9. The end of the motor 10 facing the inside of the drying tube 2 is connected to a rotating shaft 11. A first spiral scraper 12 and a second spiral scraper 13 are installed on the rotating shaft 11. The first spiral scraper 12 can scrape the inner wall of the drying tube 2 and the outer wall of the first inner tube 5, thereby scraping away the impurities that have solidified on the inner wall of the drying tube 2 and the outer wall of the first inner tube 5 after drying. Finally, they are discharged through the first discharge pipe 4, avoiding the problem of reduced heat exchange reaction efficiency caused by the adhesion of impurities.

[0021] The second spiral scraper 13 has a slit 14, which is connected to the second inner tube 7. The second spiral scraper 13 is divided into two scrapers by the slit 14, which are respectively set between the first inner tube 5 and the second inner tube 7 and inside the second inner tube 7. When the rotating shaft 11 rotates, the second spiral scraper 13 can scrape the inner wall of the first inner tube 5, the outer wall of the second inner tube 7 and the inner wall of the second inner tube 7, thereby scraping and cleaning the accumulated dust in the first inner tube 5 and the second inner tube 7. The cleaned dust is discharged from the second discharge pipe 6 and the third discharge pipe 8, avoiding the problem of reduced heat exchange efficiency caused by the accumulation of dust.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] 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 treatment device for high-salinity wastewater, comprising a support frame (1), characterized in that: A drying pipe (2) is provided on the support (1). A waste heat recovery box (9) is provided on one side of the drying pipe (2). An inlet pipe (3) is connected to the upper side of the drying pipe (2). A first outlet pipe (4) is connected to the lower side of the drying pipe (2). A first inner pipe (5) is provided inside the drying pipe (2). A second inner pipe (7) is provided inside the first inner pipe (5). One end of the second inner pipe (7) is connected to the waste heat recovery box (9). A motor (10) is installed at the end of the drying pipe (2) away from the waste heat recovery box (9). A rotating shaft (11) is driven to the output end of the first inner tube (5). A first spiral scraper (12) and a second spiral scraper (13) are mounted on the rotating shaft (11). The second spiral scraper (13) is located inside the first spiral scraper (12). A slit (14) is opened on the second spiral scraper (13). A second discharge pipe (6) is connected to the bottom side of one end of the first inner tube (5) facing the waste heat recovery box (9). A third discharge pipe (8) is connected to the bottom side of one end of the second inner tube (7) facing the waste heat recovery box (9).

2. The device for treating high-salinity wastewater according to claim 1, characterized in that: The second spiral scraper (13) has a spiral-shaped gap (14) and is connected to the second inner tube (7) through the gap (14).

3. The device for treating high-salinity wastewater according to claim 1, characterized in that: The outer side of the first spiral scraper (12) scrapes against the inner wall of the drying tube (2), and the inner side of the first spiral scraper (12) scrapes against the outer wall of the first inner tube (5).

4. The device for treating high-salinity wastewater according to claim 1, characterized in that: The second spiral scraper (13) is disposed outside between the first inner tube (5) and the second inner tube (7).

5. The device for treating high-salinity wastewater according to claim 1, characterized in that: The inner side of the second spiral scraper (13) is located inside the second inner tube (7).

6. The device for treating high-salinity wastewater according to claim 1, characterized in that: The drying tube (2) is fixedly installed to the bracket (1) through the first discharge tube (4).

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