Advanced treatment device for municipal wastewater

Abstract

The utility model discloses an advanced treatment device for urban wastewater. The advanced treatment device comprises a pretreatment tank, an advanced treatment tank and a sedimentation tank, first electric telescopic rods are rotationally connected to the two ends of the front side wall of the pretreatment pool through pin shafts, L-shaped connecting rods are rotationally connected to telescopic parts of the upper top ends of the first electric telescopic rods through rotating shafts, rotating shafts are fixedly mounted on the inner sides of the upper ends of the L-shaped connecting rods, and mounting frames are fixedly mounted on the outer curved surfaces of the rotating shafts; a filter screen and a filter membrane which are used for filtering and adsorbing wastewater are fixedly mounted in the middle of the lower end of the mounting frame, and limiting plates are fixedly mounted on the two sides of the inner wall of the pretreatment tank. An aeration disc is fixedly mounted at the bottom in the deep treatment tank. According to the utility model, the wastewater is deeply treated by the reactant, and the mixing of the wastewater and the reactant can be accelerated, so that the problem that the wastewater is difficult to clean after being stirred by using a stirring paddle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of urban wastewater treatment, in particular to an urban wastewater deep treatment device. Background Art

[0002] Urban wastewater treatment refers to the treatment of urban wastewater using physical, chemical and biological methods, aiming to purify wastewater, reduce pollution, and achieve wastewater recycling and reuse. Urban wastewater treatment mainly includes the following: Wastewater collection: Urban wastewater is collected through facilities such as sewers for treatment. Wastewater treatment: Various treatment technologies such as sedimentation, filtration, disinfection, etc. are used to remove pollutants in wastewater or reduce them to a safe level. Sludge treatment: The sludge generated during the wastewater treatment process needs to be treated, including dehydration, stabilization and disposal of the sludge. Wastewater regeneration and reuse: The treated wastewater can be regenerated and reused for water use in agriculture, industry, urban greening, etc.

[0003] When treating urban wastewater, reactants are added to the wastewater to improve the physical, chemical and biological properties of the wastewater, making it easier to treat and purify.

[0004] However, when the prior art is actually used, during the process of adding reactants to urban wastewater, in order to enable the wastewater and the reactants to be mixed quickly, the wastewater to which the reactants are added is usually stirred and mixed by a stirring paddle. However, after the wastewater to which the reactants are added is stirred and mixed by a stirring paddle, impurities inside the wastewater are easily adhered to the upper end of the stirring paddle and are difficult to clean, thereby affecting the cleaning efficiency of the wastewater after treatment. Utility Model Content

[0005] The purpose of the utility model is to provide a device for deep treatment of urban wastewater, so as to solve the problem proposed in the above-mentioned background technology that in the process of adding reactants into urban wastewater, in order to enable the wastewater and the reactants to be mixed quickly, the wastewater with the added reactants is usually stirred and mixed by a stirring paddle, but after the wastewater with the added reactants is stirred and mixed by the stirring paddle, impurities inside the wastewater are easily adhered to the upper end of the stirring paddle and are difficult to clean, thereby affecting the cleaning efficiency of the wastewater after treatment.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a pretreatment tank, a deep treatment tank and a sedimentation tank;

[0007] The two ends of the front side wall of the pretreatment tank are rotatably connected with a first electric telescopic rod through a pin shaft, and the telescopic part at the top of the first electric telescopic rod is rotatably connected with an L-shaped connecting rod through a rotating shaft, and a rotating shaft is fixedly installed on the inner side of the upper end of the L-shaped connecting rod, and a mounting frame is fixedly installed on the outer curved surface of the rotating shaft, and a filter screen and a filter membrane for filtering and adsorbing wastewater are respectively fixedly installed in the middle of the lower end of the mounting frame, and limit plates are fixedly installed on both sides of the inner wall of the pretreatment tank;

[0008] An aeration plate is fixedly installed at the bottom of the deep treatment tank, and a connecting air pipe is fixedly connected to the bottom of the aeration plate through the bottom of the deep treatment tank, and an air pump is fixedly installed at the top of the connecting air pipe;

[0009] A second electric telescopic rod is fixedly installed on the outer wall of the lower end of the sedimentation tank, and an inner telescopic part of the second electric telescopic rod passes through the outer wall of the lower end of the sedimentation tank and is fixedly installed with a push plate. An L-shaped limiting slide groove is fixedly installed on the inner wall of the lower end of the sedimentation tank.

[0010] Preferably, a first connecting pipe is fixedly connected to the upper inner end of the pretreatment tank, and the rear top end of the first connecting pipe is fixedly connected to the upper front end of the deep treatment tank, a second connecting pipe is fixedly connected to the bottom of the rear end of the deep treatment tank, and the rear top end of the second connecting pipe is fixedly connected to the upper front end of the sedimentation tank, a first pump body is fixedly installed in the middle of the first connecting pipe, and a second pump body is fixedly installed in the middle of the second connecting pipe.

[0011] Preferably, a water inlet pipe is fixedly installed through the upper end of the outer side of the pretreatment tank, so that it is connected to the external urban sewage pipe through the water inlet pipe, and a drain pipe is fixedly installed through the middle of the rear top end of the sedimentation tank, so that the wastewater treated by the pretreatment tank, deep treatment tank and sedimentation tank in sequence can be discharged through the drain pipe.

[0012] Preferably, there are two first electric telescopic rods, which are symmetrically distributed at two ends of the front side wall of the pretreatment tank, and the top telescopic part of the first electric telescopic rod is inclined toward the side end.

[0013] Preferably, the rotating shaft is rotatably connected to both sides of the upper end of the pretreatment tank through a bearing seat support, the outer side of the lower end of the mounting frame is movably connected to the inner wall of the pretreatment tank, and the limiting plate is movably connected to the inner side surface of the lower end of the mounting frame, so that the mounting frame is limited by the limiting plate.

[0014] Preferably, there are several aeration plates, which are symmetrically distributed at the bottom of the deep treatment tank.

[0015] Preferably, both side ends of the push plate are movably connected to the inner wall of the L-shaped limiting groove, so that the push plate can be slidably limited by the L-shaped limiting groove, and a sewage pipe is fixedly installed through the bottom end of the sedimentation tank away from the second electric telescopic rod.

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

[0017] 1. The utility model filters and adsorbs the wastewater inside the pretreatment tank in turn through the filter screen and the filter membrane. At the same time, when the filter screen and the filter membrane need to be cleaned and replaced, the first electric telescopic rod is controlled to be extended and retracted. When the top telescopic part of the first electric telescopic rod is extended and retracted, the L-shaped connecting rod is driven to swing. When the L-shaped connecting rod swings, the rotating shaft is driven to rotate. When the rotating shaft rotates, the mounting frame is driven to swing. When the mounting frame swings, the filter screen and the filter membrane are driven to swing upward to the opening above the pretreatment tank. When the filter screen and the filter membrane are swung upward to the opening above the pretreatment tank, the filter screen and the filter membrane can be cleaned and replaced conveniently, thereby filtering and adsorbing urban wastewater while facilitating the cleaning and replacement of the filter screen and the filter membrane.

[0018] 2. The utility model also controls the opening of the first pump body and cooperates with the first connecting pipe to discharge the wastewater after filtration and adsorption in the pretreatment tank into the deep treatment tank. When the wastewater after filtration and adsorption in the pretreatment tank is discharged into the deep treatment tank, reactants are added into the deep treatment tank. The reactants usually include flocculants, coagulants, pH adjusters, oxidants, reducing agents, adsorbents and disinfectants. After the reactants are added into the pretreatment tank, the air pump is controlled to be turned on. When the air pump is turned on, air is injected into the aeration plate through the connecting air pipe. When air is injected into the aeration plate, the aeration plate will generate gushing gas in the deep treatment tank, so that the wastewater in the deep treatment tank is accelerated to mix with the reducing agent, thereby realizing the deep treatment of the wastewater by the reactants and accelerating the mixing of the wastewater and the reactants, avoiding the problem of difficult cleaning after stirring the wastewater with a stirring paddle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a city wastewater deep treatment device of the utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of a city wastewater deep treatment device of the utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the overall structure of a city wastewater deep treatment device of the utility model. Figure 3 ;

[0022] Figure 4 This is a partial structure diagram of a city wastewater deep treatment device of the utility model. Figure 1 ;

[0023] Figure 5 This is a partial structure diagram of a city wastewater deep treatment device of the utility model. Figure 2 .

[0024] In the figure: 1. pretreatment tank; 2. deep treatment tank; 3. sedimentation tank; 4. first connecting pipe; 5. second connecting pipe; 6. first pump body; 7. second pump body; 8. water inlet pipe; 9. drain pipe; 10. first electric telescopic rod; 11. L-shaped connecting rod; 12. rotating shaft; 13. mounting frame; 14. filter screen; 15. filter membrane; 16. limit plate; 17. connecting air pipe; 18. air pump; 19. second electric telescopic rod; 20. push plate; 21. L-shaped limit slide; 22. sewage pipe; 23. aeration plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a technical solution: comprising a pretreatment tank 1, a deep treatment tank 2 and a sedimentation tank 3, wherein the upper inner end of the pretreatment tank 1 is fixedly connected with a first connecting pipe 4, and the rear top of the first connecting pipe 4 is fixedly connected with the front upper end of the deep treatment tank 2, the rear bottom of the deep treatment tank 2 is fixedly connected with a second connecting pipe 5, and the rear top of the second connecting pipe 5 is fixedly connected with the front upper end of the sedimentation tank 3, a first pump body 6 is fixedly installed in the middle of the first connecting pipe 4, and a second pump body 7 is fixedly installed in the middle of the second connecting pipe 5, so that the first pump body 6 ... The pump body 6 cooperates with the first connecting pipe 4 to discharge the wastewater in the pretreatment tank 1 into the deep treatment tank 2, and the second pump body 7 cooperates with the second connecting pipe 5 to discharge the wastewater in the deep treatment tank 2 into the sedimentation tank 3. The upper end of the outer side of the pretreatment tank 1 is fixedly installed with an inlet pipe 8, so that it is connected with the external urban sewage pipeline through the inlet pipe 8. The middle part of the rear top of the sedimentation tank 3 is fixedly installed with a drain pipe 9, so that the wastewater treated by the pretreatment tank 1, the deep treatment tank 2 and the sedimentation tank 3 is discharged in sequence through the drain pipe 9;

[0027] The first electric telescopic rod 10 is rotatably connected to both ends of the front side wall of the pretreatment tank 1 through a pin shaft, and there are two first electric telescopic rods 10, which are symmetrically distributed at both ends of the front side wall of the pretreatment tank 1. The top telescopic part of the first electric telescopic rod 10 is inclined to the side end, and the top telescopic part of the first electric telescopic rod 10 is rotatably connected to an L-shaped connecting rod 11 through a rotating shaft. A rotating shaft 12 is fixedly installed on the inner side of the upper end of the L-shaped connecting rod 11, and the rotating shaft 12 is rotatably connected to both sides of the upper end of the pretreatment tank 1 through a bearing seat support. A mounting frame 13 is fixedly installed on the outer curved surface of the rotating shaft 12, and the outer side of the lower end of the mounting frame 13 is movably connected to the inner wall of the pretreatment tank 1, and a filter screen 14 and a filter membrane 15 for filtering and adsorbing wastewater are fixedly installed in the middle of the lower end of the mounting frame 13, respectively. Limiting plates 16 are fixedly installed on both sides of the inner wall of the pretreatment tank 1, and the limiting plates 16 are movably connected to the inner side of the lower end of the mounting frame 13, so that the mounting frame 13 is limited by the limiting plates 16;

[0028] When in use, the wastewater inside the pretreatment tank 1 is filtered and adsorbed in turn by the filter screen 14 and the filter membrane 15. At the same time, when the filter screen 14 and the filter membrane 15 need to be cleaned and replaced, the first electric telescopic rod 10 is controlled to be opened and retracted. When the top telescopic part of the first electric telescopic rod 10 is retracted, the L-shaped connecting rod 11 is driven to swing. When the L-shaped connecting rod 11 swings, the rotating shaft 12 is driven to rotate. When the rotating shaft 12 rotates, the mounting frame 13 is driven to swing. When the mounting frame 13 swings, the filter screen 14 and the filter membrane 15 are driven to swing upward to the upper opening of the pretreatment tank 1. When the filter screen 14 and the filter membrane 15 are swung upward to the upper opening of the pretreatment tank 1, the filter screen 14 and the filter membrane 15 can be cleaned and replaced, thereby filtering and adsorbing urban wastewater while facilitating the cleaning and replacement of the filter screen 14 and the filter membrane 15.

[0029] An aeration plate 23 is fixedly installed at the bottom of the deep treatment tank 2, and there are several aeration plates 23, which are symmetrically distributed at the bottom of the deep treatment tank 2. The bottom of the aeration plate 23 passes through the bottom of the deep treatment tank 2 and is fixedly connected to a connecting air pipe 17. An air pump 18 is fixedly installed at the top of the connecting air pipe 17.

[0030] When in use, the first pump body 6 is controlled to be turned on in conjunction with the first connecting pipe 4 to discharge the wastewater after filtration and adsorption in the pretreatment tank 1 into the deep treatment tank 2. When the wastewater after filtration and adsorption in the pretreatment tank 1 is discharged into the deep treatment tank 2, reactants are added into the deep treatment tank 2. The reactants usually include flocculants, coagulants, pH regulators, oxidants, reducing agents, adsorbents and disinfectants. After the reactants are added into the pretreatment tank 1, the air pump 18 is controlled to be turned on. When the air pump 18 is turned on, air is injected into the aeration plate 23 through the connecting air pipe 17. When air is injected into the aeration plate 23, the aeration plate 23 generates gushing gas in the deep treatment tank 2, so that the wastewater in the deep treatment tank 2 is accelerated to be mixed with the reducing agent, thereby realizing the deep treatment of the wastewater by the reactants while accelerating the mixing of the wastewater and the reactants, avoiding the problem of difficult cleaning after the wastewater is stirred by the stirring paddle.

[0031] A second electric telescopic rod 19 is fixedly installed on the outer wall of the lower end of the sedimentation tank 3, and a push plate 20 is fixedly installed on the inner telescopic part of the second electric telescopic rod 19 through the outer wall of the lower end of the sedimentation tank 3. An L-shaped limiting slide 21 is fixedly installed on the inner wall of the lower end of the sedimentation tank 3, and both side ends of the push plate 20 are movably connected to the inner wall of the L-shaped limiting slide 21, so that the push plate 20 is slidably limited by the L-shaped limiting slide 21, and a sewage pipe 22 is fixedly installed on the bottom end of the sedimentation tank 3 away from the second electric telescopic rod 19;

[0032] When in use, the second pump body 7 is controlled to open and cooperate with the second connecting pipe 5 to discharge the treated wastewater inside the deep treatment tank 2 into the sedimentation tank 3. When the treated wastewater inside the deep treatment tank 2 is discharged into the sedimentation tank 3, the wastewater is precipitated through the sedimentation tank 3. After the sedimentation of the wastewater inside the sedimentation tank 3 is completed, the drain pipe 9 is opened to discharge the middle and upper layer wastewater after precipitation. When the middle and upper layer wastewater after precipitation is discharged, the sewage pipe 22 is opened to discharge the bottom layer sewage containing a large amount of impurities after precipitation. At the same time, the second electric telescopic rod 19 is controlled to be opened and extended inwardly. When the second electric telescopic rod 19 is extended inwardly, it will drive the push plate 20 to move inwardly along the inner wall of the L-shaped limiting slide groove 21. When the push plate 20 moves inwardly, the impurity wastewater at the bottom of the sedimentation tank 3 can be pushed and gathered, thereby realizing the sedimentation treatment of the wastewater while facilitating the gathering and cleaning of the impurity wastewater after precipitation.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for deep treatment of urban wastewater, characterized in that: It comprises a pretreatment tank (1), a deep treatment tank (2) and a sedimentation tank (3); The two ends of the front side wall of the pretreatment tank (1) are rotatably connected to a first electric telescopic rod (10) via a pin shaft, the telescopic portion at the top end of the first electric telescopic rod (10) is rotatably connected to an L-shaped connecting rod (11) via a rotating shaft, a rotating shaft (12) is fixedly installed on the inner side of the upper end of the L-shaped connecting rod (11), a mounting frame (13) is fixedly installed on the outer curved surface of the rotating shaft (12), a filter screen (14) and a filter membrane (15) for filtering and adsorbing wastewater are fixedly installed in the middle of the lower end of the mounting frame (13), and limit plates (16) are fixedly installed on both sides of the inner wall of the pretreatment tank (1); An aeration plate (23) is fixedly installed at the bottom of the deep treatment tank (2), the bottom of the aeration plate (23) passes through the bottom of the deep treatment tank (2) and is fixedly connected to a connecting air pipe (17), and an air pump (18) is fixedly installed at the top of the connecting air pipe (17); A second electric telescopic rod (19) is fixedly installed on the outer wall of the lower end of the sedimentation tank (3); a push plate (20) is fixedly installed on the inner telescopic portion of the second electric telescopic rod (19) passing through the outer wall of the lower end of the sedimentation tank (3); and an L-shaped limiting sliding groove (21) is fixedly installed on the inner wall of the lower end of the sedimentation tank (3).

2. The urban wastewater deep treatment device according to claim 1, characterized in that: The upper inner end of the pretreatment tank (1) is fixedly connected to a first connecting pipe (4), and the rear top of the first connecting pipe (4) is fixedly connected to the upper front end of the deep treatment tank (2). The rear bottom of the deep treatment tank (2) is fixedly connected to a second connecting pipe (5), and the rear top of the second connecting pipe (5) is fixedly connected to the upper front end of the sedimentation tank (3). A first pump body (6) is fixedly installed in the middle of the first connecting pipe (4), and a second pump body (7) is fixedly installed in the middle of the second connecting pipe (5).

3. The urban wastewater deep treatment device according to claim 2, characterized in that: A water inlet pipe (8) is fixedly installed through the upper end of the outer side of the pretreatment tank (1), so that it is connected to an external urban sewage pipeline through the water inlet pipe (8); a drainage pipe (9) is fixedly installed through the middle of the rear top of the sedimentation tank (3), so that the wastewater treated by the pretreatment tank (1), the deep treatment tank (2) and the sedimentation tank (3) in sequence is discharged through the drainage pipe (9).

4. The urban wastewater deep treatment device according to claim 3, characterized in that: There are two first electric telescopic rods (10), which are symmetrically distributed at two ends of the front side wall of the pretreatment tank (1), and the top telescopic part of the first electric telescopic rod (10) is inclined toward the side end.

5. The urban wastewater deep treatment device according to claim 4, characterized in that: The rotating shaft (12) is rotatably connected to both sides of the upper end of the pretreatment tank (1) through bearing seat support, the outer side of the lower end of the mounting frame (13) is movably connected to the inner wall of the pretreatment tank (1), and the limiting plate (16) is movably connected to the inner side surface of the lower end of the mounting frame (13), so that the mounting frame (13) is limited by the limiting plate (16).

6. The urban wastewater deep treatment device according to claim 5, characterized in that: There are a plurality of aeration plates (23), which are symmetrically distributed at the bottom of the deep treatment tank (2).

7. The urban wastewater deep treatment device according to claim 6, characterized in that: The two side ends of the push plate (20) are movably connected to the inner wall of the L-shaped limiting slide groove (21), so that the push plate (20) is slidably limited by the L-shaped limiting slide groove (21), and a sewage pipe (22) is fixedly installed through the bottom end of the sedimentation tank (3) away from the second electric telescopic rod (19).

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