Multi-stage filtering device for high-salinity wastewater treatment

Abstract

The utility model relates to the field of wastewater treatment, in particular to a multi-stage filtering device for high-salinity wastewater treatment, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a box body, the top of the box body is communicated with a first shell, and one end of the first shell is communicated with a feeding pipe. Through the arrangement of the mixing mechanism, high-salinity wastewater and chemicals such as a flocculating agent can be rapidly and uniformly mixed, so that the high-salinity wastewater and the flocculants are mixed more uniformly, the mixing efficiency is improved, a multi-stage filtering system is formed through cooperative use of a first-stage filtering net, a second-stage filtering net and a third-stage filtering net, and the filtering efficiency is improved. Impurities of different sizes and types in the high-salinity wastewater can be gradually removed, it is ensured that the filtering effect is more thorough and efficient, the scraping mechanism can regularly clean residues on the surfaces of the filtering plates, it is ensured that filtering holes are unobstructed, the filtering efficiency can be improved, and the waiting time of wastewater treatment is shortened; therefore, the operation efficiency of the whole wastewater treatment system is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to a multi-stage filtration device for treating high-salt wastewater. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater using physical, chemical, and biological methods. It removes or reduces pollutants in wastewater to a certain level to meet discharge requirements or reuse needs. The aim is to reduce pollution, achieve wastewater recycling and reuse, and make full use of water resources.

[0003] A search revealed that Chinese Patent Publication No. CN221309757U, authorized on July 12, 2024, discloses a multi-stage filtration device for wastewater treatment, belonging to the field of wastewater treatment equipment. It includes a filter box and a multi-stage filtration device installed within the filter box. The multi-stage filtration device consists of a first filter screen, a second filter screen, and a third filter screen, arranged from top to bottom. The filter box also includes an impact structure that applies impact force to the first filter screen, causing it to vibrate. A support plate is installed on the first filter screen to receive the impact force. The beneficial effects are: the support plate is positioned in the middle of the first filter screen, receiving the impact force that causes the first filter screen to vibrate, thus protecting the screen surface from damage. The impact structure uses a pneumatic impact method. A vent pipe is installed below the first filter screen, with the vent facing the first filter screen. High-pressure gas is introduced into the vent pipe, and the high-speed airflow blows onto the support plate, causing the first filter screen to vibrate. Compared to the method of striking, this is safer and more convenient.

[0004] However, the device still has the following drawbacks: In most existing wastewater filtration processes, the wastewater is simply filtered through a filter screen. The filter screen can usually only trap larger suspended particles and impurities. For dissolved pollutants, colloids, microparticles, and certain toxic and harmful substances, the removal effect of the filter screen is very limited, resulting in poor wastewater filtration. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a multi-stage filtration device for treating high-salinity wastewater, comprising a base plate, a housing fixedly connected to the top of the base plate, a first shell connected to the top of the housing, an inlet pipe connected to one end of the first shell, one end of the inlet pipe penetrating into the inner cavity of a water storage tank, a mixing mechanism provided in the inner cavity of the water storage tank, a first outlet pipe connected to the bottom of the water storage tank, a solenoid valve sleeved on the surface of the first outlet pipe, a filtration mechanism provided at the bottom of the inner cavity of the housing, a second outlet pipe connected to one side of the housing, a second shell fixedly connected to the top of the base plate, and a scraping mechanism and a flow mechanism provided at the top of the second shell.

[0006] Furthermore, the mixing mechanism includes a stirring rod disposed in the inner cavity of the water storage tank, the surface of the stirring rod is provided with stirring blades, and the top end of the stirring rod extends through to the top of the first housing and is fixedly connected to a motor.

[0007] Furthermore, the filtration mechanism includes a primary filter screen fixedly connected to the bottom of the housing, a secondary filter screen is provided on the left side of the primary filter screen, and a tertiary filter screen is provided on one side of the housing. The top and bottom of the secondary and tertiary filter screens are fixedly connected to the housing.

[0008] Furthermore, the scraping mechanism includes a filter plate fixedly connected to the bottom of the inner cavity of the second housing, a scraper is provided on the top of the filter plate, and a handle is slidably connected to one side of the second housing, with the bottom of the handle fixedly connected to the scraper.

[0009] Furthermore, the circulation mechanism includes a water pump disposed on the top of the second housing, the water pump having an inlet end connected to an inlet pipe, one end of the inlet pipe being connected to the second housing, and the water pump having an outlet end connected to a third outlet pipe, one end of the third outlet pipe penetrating into the inner cavity of the water storage tank.

[0010] Furthermore, a mounting base is fitted onto the surface of the water pump, and a bolt is threaded onto the top of the mounting base. The water pump is detachably connected to the second housing via the bolt.

[0011] Furthermore, a protective shell is fitted over the surface of the motor, the bottom of which is fixedly connected to the first housing, and a through groove is formed on the surface of the protective shell.

[0012] Furthermore, a handrail is fixedly connected to the bottom of the base plate, and the surface of the handrail is provided with anti-slip texture.

[0013] The beneficial effects of this utility model are:

[0014] 1. The mixing mechanism in this device enables rapid and uniform mixing of high-salinity wastewater and flocculants, resulting in more even mixing and improved mixing efficiency. The combined use of primary, secondary, and tertiary filters forms a multi-stage filtration system that progressively removes impurities of different sizes and types from the high-salinity wastewater, ensuring more thorough and efficient filtration. The scraping mechanism periodically cleans residues from the filter plates, ensuring unobstructed filter holes, which helps improve filtration efficiency, reduces wastewater treatment waiting time, and thus enhances the overall operating efficiency of the wastewater treatment system. It also prevents filter plates from being damaged by long-term clogging, extending their lifespan, reducing replacement frequency, and ultimately lowering the operating costs of the wastewater treatment system.

[0015] 2. The mounting base and bolts in this device are used to fix the water pump and facilitate disassembly and maintenance by the user. The protective shell protects the motor, making it less prone to damage and extending its service life. The combination of the handrail and anti-slip texture increases the friction between the user's palm and the handrail, making it easier for the user to move the multi-stage filtration device.

[0016] 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 objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural main body diagram according to an embodiment of the present utility model is shown;

[0019] Figure 2 A partial structural cross-section is shown according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 3 A cross-sectional view of the structure of the second housing according to an embodiment of the present invention is shown;

[0021] Figure 4 A partial structural cross-section is shown according to an embodiment of the present invention. Figure 2 .

[0022] In the diagram: 1. Base plate; 2. Box body; 3. First shell; 4. Feed pipe; 5. Water storage tank; 6. Mixing mechanism; 61. Stirring rod; 62. Stirring blade; 63. Motor; 7. First outlet pipe; 8. Solenoid valve; 9. Filtration mechanism; 91. Primary filter screen; 92. Secondary filter screen; 93. Tertiary filter screen; 10. Second outlet pipe; 11. Second shell; 12. Scraping mechanism; 121. Filter plate; 122. Scraper; 123. Handle; 13. Flow mechanism; 131. Water pump; 132. Inlet pipe; 133. Third outlet pipe; 14. Mounting base; 15. Protective shell; 16. Handrail. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] This utility model embodiment provides a multi-stage filtration device for treating high-salinity wastewater, including a base plate 1, as exemplarily, such as... Figures 1-4 As shown.

[0025] The top of the base plate 1 is fixedly connected to the box body 2. The top of the box body 2 is connected to the first housing 3. One end of the first housing 3 is connected to the feed pipe 4. One end of the feed pipe 4 extends into the inner cavity of the water storage tank 5. The inner cavity of the water storage tank 5 is provided with a mixing mechanism 6. The bottom of the water storage tank 5 is connected to the first water outlet pipe 7. The surface of the first water outlet pipe 7 is fitted with a solenoid valve 8. The bottom of the inner cavity of the box body 2 is provided with a filtering mechanism 9. One side of the box body 2 is connected to the second water outlet pipe 10. The top of the base plate 1 is fixedly connected to the second housing 11. The top of the second housing 11 is provided with a scraping mechanism 12 and a flow mechanism 13.

[0026] The mixing mechanism 6 includes a stirring rod 61 disposed inside the water storage tank 5, such as... Figures 1-4 As shown.

[0027] The surface of the stirring rod 61 is provided with stirring blades 62, and the top end of the stirring rod 61 extends through to the top of the first housing 3 and is fixedly connected to a motor 63.

[0028] Specifically, the mixing mechanism 6 enables rapid and uniform mixing of high-salt wastewater and flocculants, resulting in a more uniform mixture and improved mixing efficiency.

[0029] The filtration mechanism 9 includes a primary filter screen 91 fixedly connected to the bottom of the housing 2, such as... Figures 1-4 As shown.

[0030] A secondary filter 92 is provided on the left side of the primary filter 91, and a tertiary filter 93 is provided on one side of the housing 2. The top and bottom of the secondary filter 92 and the tertiary filter 93 are fixedly connected to the housing 2.

[0031] Specifically, by using the primary filter 91, the secondary filter 92, and the tertiary filter 93 together, a multi-stage filtration system is formed, which can gradually remove impurities of different sizes and types from high-salt wastewater, ensuring a more thorough and efficient filtration effect.

[0032] The scraping mechanism 12 includes a filter plate 121 fixedly connected to the bottom of the inner cavity of the second housing 11, such as Figures 1-4 As shown.

[0033] A scraper 122 is provided on the top of the filter plate 121, and a handle 123 is slidably connected to one side of the second housing 11. The bottom of the handle 123 is fixedly connected to the scraper 122.

[0034] Specifically, the scraping mechanism 12 can periodically clean the residue on the surface of the filter plate 121, ensuring that the filter holes are unobstructed, which helps to improve filtration efficiency, reduce the waiting time for wastewater treatment, and thus improve the overall operating efficiency of the wastewater treatment system. At the same time, it can prevent the filter plate 121 from being damaged due to long-term clogging, which helps to extend the service life of the filter plate 121, reduce the replacement frequency, and thus reduce the operating cost of the wastewater treatment system.

[0035] The flow mechanism 13 includes a water pump 131 disposed on the top of the second housing 11, such as Figures 1-4 As shown.

[0036] The water pump 131 has an inlet pipe 132 connected to its inlet end. One end of the inlet pipe 132 is connected to the second housing 11. The water pump 131 has a outlet pipe 133 connected to its outlet end. One end of the outlet pipe 133 extends into the inner cavity of the water storage tank 5.

[0037] The surface of the water pump 131 is fitted with a mounting base 14, such as Figures 1-4 As shown.

[0038] The top of the mounting base 14 is threaded with bolts, the water pump 131 is detachably connected to the second housing 11 by bolts, the surface of the motor 63 is covered with a protective shell 15, the bottom of the protective shell 15 is fixedly connected to the first housing 3, the surface of the protective shell 15 is provided with a through groove, the bottom of the base plate 1 is fixedly connected with a handrail 16, and the surface of the handrail 16 is provided with anti-slip texture.

[0039] Specifically, the mounting base 14 and bolts work together to fix the water pump 131, while also facilitating disassembly and maintenance by the user. The protective shell 15 protects the motor 63, making it less prone to damage and extending its service life. The handle 16 and anti-slip texture increase the friction between the user's palm and the handle 16, making it easier for the user to move the multi-stage filtration device.

[0040] The working principle of the multi-stage filtration device for treating high-salinity wastewater proposed in this embodiment is as follows:

[0041] When the device is in use, high-salt wastewater is poured into the inner cavity of the second housing 11 through the filter plate 121. When the high-salt wastewater passes through the filter plate 121, the filter plate 121 will filter out the larger particles and suspended solids mixed in it. The water pump 131 is started so that the high-salt wastewater enters the inner cavity of the third outlet pipe 133 through the inlet pipe 132 and finally flows into the inner cavity of the water storage tank 5.

[0042] After long-term use, a large number of large particles and suspended matter will remain on the surface of the filter plate 121. Users can simply pull the handle 123, which will move the scraper 122 to remove the large particles and suspended matter from the surface of the filter plate 121, making it less likely for the filter plate 121 to become clogged.

[0043] The user then pours flocculant and other agents into the inner cavity of the water storage tank 5 through the feed pipe 4, allowing it to come into contact with the high-salt wastewater. The motor 63 is then started, and the output end of the motor 63 drives the stirring rod 61 to rotate. The stirring rod 61 drives the stirring blade 62 to rotate, thus mixing the high-salt wastewater and the flocculant. This causes the solid particles in the high-salt wastewater to quickly settle to the bottom of the water storage tank 5. By opening the solenoid valve 8, the mixed high-salt wastewater can flow into the inner cavity of the tank 2 through the first outlet pipe 7.

[0044] High-salinity wastewater undergoes multi-stage filtration through primary filter screen 91, secondary filter screen 92, and tertiary filter screen 93. The density of the primary filter screen 91, secondary filter screen 92, and tertiary filter screen 93 gradually decreases, which effectively removes impurities from the high-salinity wastewater.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-stage filtration device for treating high-salinity wastewater, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a box body (2), the top of the box body (2) is connected to a first housing (3), one end of the first housing (3) is connected to a feed pipe (4), one end of the feed pipe (4) extends into the inner cavity of the water storage tank (5), the inner cavity of the water storage tank (5) is provided with a mixing mechanism (6), the bottom of the water storage tank (5) is connected to a first water outlet pipe (7), the surface of the first water outlet pipe (7) is fitted with a solenoid valve (8), the bottom of the inner cavity of the box body (2) is provided with a filter mechanism (9), one side of the box body (2) is connected to a second water outlet pipe (10), the top of the base plate (1) is fixedly connected to a second housing (11), the top of the second housing (11) is provided with a scraping mechanism (12) and a flow mechanism (13).

2. The multi-stage filtration device for treating high-salinity wastewater according to claim 1, characterized in that: The mixing mechanism (6) includes a stirring rod (61) disposed in the inner cavity of the water storage tank (5). The surface of the stirring rod (61) is provided with stirring blades (62). The top end of the stirring rod (61) extends through to the top of the first housing (3) and is fixedly connected to a motor (63).

3. The multi-stage filtration device for treating high-salinity wastewater according to claim 1, characterized in that: The filtration mechanism (9) includes a primary filter screen (91) fixedly connected to the bottom of the housing (2). A secondary filter screen (92) is provided on the left side of the primary filter screen (91), and a tertiary filter screen (93) is provided on one side of the housing (2). The top and bottom of the secondary filter screen (92) and the tertiary filter screen (93) are fixedly connected to the housing (2).

4. The multi-stage filtration device for treating high-salinity wastewater according to claim 1, characterized in that: The scraping mechanism (12) includes a filter plate (121) fixedly connected to the bottom of the inner cavity of the second housing (11). A scraper (122) is provided on the top of the filter plate (121). A handle (123) is slidably connected to one side of the second housing (11). The bottom of the handle (123) is fixedly connected to the scraper (122).

5. A multi-stage filtration device for treating high-salinity wastewater according to claim 1, characterized in that: The circulation mechanism (13) includes a water pump (131) disposed on the top of the second housing (11). The water inlet end of the water pump (131) is connected to a water inlet pipe (132). One end of the water inlet pipe (132) is connected to the second housing (11). The water outlet end of the water pump (131) is connected to a third water outlet pipe (133). One end of the third water outlet pipe (133) extends into the inner cavity of the water storage tank (5).

6. A multi-stage filtration device for treating high-salinity wastewater according to claim 5, characterized in that: The surface of the water pump (131) is fitted with a mounting base (14), and the top of the mounting base (14) is threaded with a bolt. The water pump (131) and the second housing (11) are detachably connected by bolts.

7. A multi-stage filtration device for treating high-salinity wastewater according to claim 2, characterized in that: The surface of the motor (63) is covered with a protective shell (15), the bottom of the protective shell (15) is fixedly connected to the first shell (3), and the surface of the protective shell (15) is provided with a through groove.

8. A multi-stage filtration device for treating high-salinity wastewater according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to a handrail (16), and the surface of the handrail (16) is provided with anti-slip texture.

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