A sewage treatment device with multi-stage filtration function

Abstract

The present invention belongs to the technical field of sewage treatment devices, and discloses a sewage treatment device with a multi-stage filtering function, comprising a sewage treatment tank: four maintenance ports are arranged on the top of the sewage treatment tank, a partition plate is arranged inside the sewage treatment tank, the partition plate divides the interior of the sewage treatment tank into four spaces, a sewage reflux structure is installed inside the sewage treatment tank, the sewage reflux structure comprises a first liter water pump fixedly installed on one side of the inner wall of the sewage treatment tank, and can perform multi-stage treatment on sewage, and perform reflux treatment on unqualified sewage after treatment. Through the multi-stage treatment, the sewage can be subjected to multiple reactions and aeration treatments, which is beneficial to strengthening the removal effect of pollutants and improving the water quality of effluent. In addition, unqualified sewage can be treated by reflux to avoid environmental pollution caused by direct discharge, and reduce the impact on the surrounding environment and human health.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment device with a multi-stage filtering function. Background Art

[0002] In the prior art, when the sewage is not treated properly after being treated by a multi-stage sewage treatment device, the sewage cannot be returned for further treatment, resulting in the unqualified sewage being directly discharged to the outside, causing pollution to external water resources. Summary of the invention

[0003] The present invention aims at the problem that when the sewage is not treated properly after being treated by a multi-stage sewage treatment device in the prior art, the sewage cannot be refluxed for further treatment, resulting in the unqualified sewage being directly discharged to the outside, causing pollution to the external water resources. The present invention proposes the following technical solutions:

[0004] A sewage treatment device with a multi-stage filtering function comprises a sewage treatment tank: the top of the sewage treatment tank is provided with four maintenance ports, a partition plate is provided inside the sewage treatment tank, and the partition plate divides the inside of the sewage treatment tank into four spaces;

[0005] A sewage return structure is installed inside the sewage treatment tank, and the sewage return structure includes a first liter water pump fixedly installed on one side of the inner wall of the sewage treatment tank, a connecting pipe is fixedly installed on one end of the first liter water pump, and one end of the connecting pipe is located inside the second space of the sewage treatment tank, a second liter water pump is installed inside the second space of the sewage treatment tank, a guide pipe is fixedly installed on one end of the second liter water pump, and one end of the guide pipe is located inside the third space of the sewage treatment tank, a third liter water pump is installed inside the third space of the sewage treatment tank, a return pipe is fixedly installed on the top of the third liter water pump, and the return pipe is fixedly installed inside the first space of the sewage treatment tank;

[0006] Fillers are fixedly installed at equal distances inside the first space and the second space of the sewage treatment tank, an aeration structure is fixedly installed at the bottom of the filler in the second space of the sewage treatment tank, a drug filtering component is fixedly installed on one side of the third space of the sewage treatment tank, a filter body is fixedly installed at the bottom of the third space of the sewage treatment tank, a pumping pipe is fixedly installed at the top of the fourth space of the sewage treatment tank, and connecting pipes are installed between the first space and the second space inside the sewage treatment tank and the third space and the fourth space.

[0007] As a preferred embodiment of the above technical solution, the aeration structure includes a hose running through the sewage treatment tank, an aeration pipe is fixedly installed at one end of the hose, and an aeration head is fixedly installed at an equidistant position at the top of the aeration pipe.

[0008] As a preferred embodiment of the above technical solution, a concave rod is sleeved on the outer side of the aeration pipe, a limit block is connected to the inside of the concave rod for upward and downward sliding, a concave bar is fixedly installed on one end of the limit block, a serrated bar is integrally formed on the outer side of the concave bar, a gear is meshedly connected on the outer side of the serrated bar and the gear is fixedly installed on the outer side of the aeration pipe.

[0009] As a preferred embodiment of the above technical solution, a guide bar is fitted and connected to the top of the serrated bar, an electric telescopic rod is fixedly installed at one end of the guide bar, the movable end of the electric telescopic rod is located inside the third space of the sewage treatment tank, and the fixed end of the electric telescopic rod is located inside the fourth space of the sewage treatment tank.

[0010] As a preferred embodiment of the above technical solution, the top edge of the sawtooth bar is chamfered with a chamfer of 15 degrees, and the bottom end of the guide bar is inclined with a tilt angle of 75 degrees.

[0011] As a preferred embodiment of the above technical solution, the drug filtering assembly includes a medicine box fixedly installed inside the fourth space of the sewage treatment tank, a vertical plate is fixedly installed inside the medicine box, and a downpipe is fixedly installed at one end of the medicine box.

[0012] As a preferred embodiment of the above technical solution, liquid inlet pipes are installed on both sides of the inner wall of the medicine box and the liquid inlet pipes pass through one of the maintenance ports, and the height of the vertical plate is less than the depth of the medicine box.

[0013] As a preferred embodiment of the above technical solution, a mounting plate is fixedly installed inside the downpipe, a rotating rod is rotatably connected to the middle of the mounting plate, a top agitator is fixedly installed on the top of the rotating rod, support columns are equidistantly fixedly installed on the top of the rotating rod, and a rotating stirring element is sleeved on the outer side of the support column.

[0014] As a preferred embodiment of the above technical solution, arc tubes are fixedly installed at equal distances at the bottom of the mounting plate, and a V-shaped plate is fixedly installed at the outer side of the rotating rod corresponding to the water outlet of the arc tube, and the number of the V-shaped plates and the arc tubes corresponds one to one.

[0015] The beneficial effects of the present invention are:

[0016] (1) It can treat sewage at multiple stages, and when the unqualified sewage is treated, it can be returned for treatment. Through multi-stage treatment, the sewage can be subjected to multiple reactions and aeration treatments, which is conducive to strengthening the removal effect of pollutants and improving the water quality of the effluent. In addition, the unqualified sewage can be returned for treatment to avoid environmental pollution caused by direct discharge, and reduce the impact on the surrounding environment and human health. At the same time, multi-stage treatment can make the treatment process more stable. Even if problems occur in individual links, the compensation effect of other links can ensure the overall operation stability of the system.

[0017] (2) Stirring and mixing the liquid medicine and sewage, so that the liquid medicine and sewage can be fully mixed, ensuring that the liquid medicine can be evenly distributed in the sewage, improving the treatment efficiency, and making the stirring make the liquid medicine and sewage fully contact, increasing the effective concentration of the reactants, thereby accelerating the chemical reaction speed and improving the treatment effect. At the same time, the liquid medicine and sewage can be more fully contacted, reducing the accumulation of liquid medicine in the dead corners of the treatment equipment, ensuring the working efficiency of the entire treatment system;

[0018] (3) The angle and position of the aeration head are changed to ensure uniform distribution of aeration throughout the treatment process, improve aeration efficiency, make the oxygen content in the water more uniform, and enable the aeration system to adapt to the needs of different time periods and treatment stages, improve the flexibility and adaptability of the system, and ensure that the microorganisms in the water metabolize and decompose pollutants in the best state, thereby improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a schematic diagram of the structure of a sewage treatment device with a multi-stage filtering function;

[0020] Figure 2 Shown is a cross-sectional view of a sewage treatment tank;

[0021] Figure 3 Shown is a diagram of the interior of a sewage treatment tank;

[0022] Figure 4 What is shown is the structural schematic diagram of the sewage return structure;

[0023] Figure 5 Shown is a schematic diagram of the structure of the aeration structure;

[0024] Figure 6 Shown is a schematic diagram of the structure of a drug filter assembly;

[0025] Figure 7 Shown is a cross-sectional view of a downpipe;

[0026] Figure 8 Shown is a schematic diagram of the installation structure of the arc tube.

[0027] In the figure: 1. sewage treatment tank; 2. maintenance port; 3. sewage return structure; 31. first liter water pump; 32. connecting pipe; 33. second liter water pump; 34. guide pipe; 35. third liter water pump; 36. return pipe; 4. filler; 5. aeration structure; 51. hose; 52. aeration pipe; 53. aeration head; 54. concave rod; 55. limit block; 56. concave strip; 57. serrated strip; 58. gear; 59. guide strip; 510. electric telescopic rod; 6. filter body; 7. drug filter assembly; 71. medicine box; 72. vertical plate; 74. downpipe; 75. mounting plate; 76. rotating rod; 77. top stirring member; 78. arc pipe; 79. V-shaped plate; 710. support column; 711. rotating stirring member; 8. connecting pipe; 9. water pump. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Example

[0029] The present invention provides a sewage treatment device with a multi-stage filtering function, such as Figure 1-Figure 8 As shown, it includes: a sewage treatment tank 1: four maintenance ports 2 are arranged at the top of the sewage treatment tank 1, and a partition plate is arranged inside the sewage treatment tank 1, which divides the inside of the sewage treatment tank 1 into four spaces. The four spaces are a reaction chamber, an aeration chamber, a de-impurity chamber and a clean water chamber from left to right, and two water inlet pipes are embedded and installed at the top of the sewage treatment tank 1;

[0030] A sewage return structure 3 is installed inside the sewage treatment tank 1, and the sewage return structure 3 includes a first liter water pump 31 fixedly installed on one side of the inner wall of the sewage treatment tank 1, a connecting pipe 32 is fixedly installed at one end of the first liter water pump 31, and one end of the connecting pipe 32 is located inside the second space of the sewage treatment tank 1, a second liter water pump 33 is installed inside the second space of the sewage treatment tank 1, a guide pipe 34 is fixedly installed at one end of the second liter water pump 33, and one end of the guide pipe 34 is located inside the third space of the sewage treatment tank 1, a third liter water pump 35 is installed inside the third space of the sewage treatment tank 1, a return pipe 36 is fixedly installed on the top of the third liter water pump 35, and the return pipe 36 is fixedly installed inside the first space of the sewage treatment tank 1;

[0031] Fillers 4 are fixedly installed at equal distances inside the first space and the second space of the sewage treatment tank 1. The filler 4 is made of polypropylene. An aeration structure 5 is fixedly installed at the bottom of the filler 4 in the second space of the sewage treatment tank 1. A drug filter component 7 is fixedly installed on one side of the third space of the sewage treatment tank 1. A filter body 6 is fixedly installed at the bottom of the third space of the sewage treatment tank 1. A pumping pipe 9 is fixedly installed at the top of the fourth space of the sewage treatment tank 1. Connecting pipes 8 are installed between the first space and the second space inside the sewage treatment tank 1 and the third space and the fourth space.

[0032] like Figure 2 , Figure 3 and Figure 5 As shown, the aeration structure 5 includes a hose 51 that runs through the sewage treatment tank 1, an aeration pipe 52 is fixedly installed at one end of the hose 51, and an aeration head 53 is fixedly installed at the top of the aeration pipe 52 at an equal distance. The dissolved oxygen content in the sewage treatment tank 1 is increased by aeration, and the oxygen supply required for microbial degradation of organic matter is promoted, thereby accelerating the rate of the oxidation reaction, and further accelerating the sewage treatment process. A concave rod 54 is sleeved on the outer side of the aeration pipe 52, and a limit block 55 is connected to the concave rod 54 for sliding up and down inside. A concave bar 56 is fixedly installed at one end of the limit block 55, and a sawtooth bar 57 is integrally formed on the outer side of the concave bar 56. A gear 58 is meshed and connected to the outer side of the sawtooth bar 57, and the gear 58 is fixedly installed on the outer side of the aeration pipe 52. Since the sawtooth bar 57 drives the gear 58 to rotate during the displacement process, the gear 58 drives the aeration pipe 52 to deflect when the gear 58 rotates. When the aeration pipe 52 is deflected, the aeration direction is changed, thereby increasing the aeration range. The top of the sawtooth bar 57 is fitted with a guide bar 59, and one end of the guide bar 59 is fixedly installed with an electric telescopic rod 510. The movable end of the electric telescopic rod 510 is located inside the third space of the sewage treatment tank 1, and the fixed end of the electric telescopic rod 510 is located inside the fourth space of the sewage treatment tank 1. Since the electric telescopic rod 510 drives the concave rod 54 to move when it is running, the concave rod 54 drives the aeration pipe 52 to move horizontally when it moves, thereby achieving the purpose of adjusting the horizontal displacement of the aeration pipe 52, thereby increasing the aeration range of the aeration pipe 52. The top edge of the sawtooth bar 57 is chamfered with a chamfer of 15 degrees, and the bottom end of the guide bar 59 is provided with an inclination angle of 75 degrees, which is used for the up and down displacement of the guide bar 59 and prevents the guide bar 59 from deflecting.

[0033] like Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8As shown, the drug filtering assembly 7 includes a medicine box 71 fixedly installed inside the fourth space of the sewage treatment tank 1, a vertical plate 72 is fixedly installed inside the medicine box 71, and a medicine inlet pipe is symmetrically arranged on the top of the medicine box 71 to facilitate the introduction of medicine. A downpipe 74 is fixedly installed at one end of the medicine box 71 to mix the filtered sewage with the medicine liquid inside the medicine box 71, so as to treat the sewage again. Liquid inlet pipes are installed on both sides of the inner wall of the medicine box 71 and the liquid inlet pipes pass through one of the maintenance ports 2. The height of the vertical plate 72 is less than the depth of the medicine box 71, which is used to mix the sewage and the medicine liquid inside the medicine box 71 and facilitate the flow of sewage. A mounting plate 75 is fixedly installed inside the downpipe 74, and a rotating rod 76 is rotatably connected to the middle of the mounting plate 75, and the top of the rotating rod 76 is fixed A top stirring piece 77 is installed, and a support column 710 is fixedly installed at an equal distance on the top of the rotating rod 76. A rotating stirring piece 711 is sleeved on the outer side of the support column 710. When the rotating rod 76 rotates, the top stirring piece 77 and the rotating stirring piece 711 are driven to rotate. During the rotation of the top stirring piece 77 and the rotating stirring piece 711, the sewage and the liquid medicine are mixed, so that the liquid medicine is evenly distributed, and it helps to promote the reaction speed of the liquid medicine and sewage and improve the reaction efficiency. An arc tube 78 is fixedly installed at an equal distance on the bottom end of the mounting plate 75, and a V-shaped plate 79 is fixedly installed on the outer side of the rotating rod 76 at the water outlet position of the arc tube 78. The number of the V-shaped plates 79 and the arc tubes 78 corresponds to each other, which is convenient for driving the rotation of the rotating rod 76 and changes the difficulty of rotating the rotating rod 76.

[0034] Working principle: During the actual use of the device, the sewage enters the sewage treatment tank 1 along the water inlet pipe. At this time, the sewage is inside the reaction chamber and reacts with the filler 4. At this time, the first liter water pump 31 is started. When the first liter water pump 31 is running, it drives the sewage into the aeration chamber. The filler 4 inside the aeration chamber performs a secondary reaction on the sewage. At this time, the aeration structure 5 is running. When the aeration structure 5 is running, the sewage is aerated. After the aeration treatment, the second liter water pump 33 is started. The second liter water pump 33 draws the sewage into the guide pipe 34, and enters the drug filter component 7 along the guide pipe 34, and is mixed with the drug liquid inside the drug filter component 7. After the drug liquid and the sewage are mixed, they enter the impurity removal chamber, and the filter body 6 inside the impurity removal chamber filters the sewage. The filtered When the sewage is qualified, it enters the clean water chamber along the connecting pipe 8, and finally is discharged from the sewage treatment tank 1 through the pumping pipe 9. When the sewage is unqualified after the reaction, the third water pump 35 extracts the sewage and returns it to the reaction chamber again along the return pipe 36. At this time, the sewage can be treated in multiple stages, and the unqualified sewage after treatment is refluxed again. Through multi-stage treatment, the sewage can be subjected to multiple reactions and aeration treatments, which is conducive to strengthening the removal effect of pollutants and improving the water quality of the effluent. In addition, the unqualified sewage can be treated by reflux to avoid environmental pollution caused by direct discharge, and reduce the impact on the surrounding environment and human health. At the same time, multi-stage treatment can make the treatment process more stable. Even if there are problems in individual links, the overall operation stability of the system can be guaranteed through the compensation effect of other links.

[0035] During the aeration treatment process, the electric telescopic rod 510 is connected to a power source and starts to operate. When the electric telescopic rod 510 is in operation, it drives the concave rod 54 to move. When the concave rod 54 moves, it drives the aeration tube 52 to move. When the aeration tube 52 moves, it drives the aeration head 53 to move. In the process of the operation again, the hose 51 is bent. Since the weight of one end of the aeration tube 52 is greater than that of the other end, the aeration tube 52 is deflected under the action of gravity. When the aeration tube 52 deflects, it drives the gear 58 to rotate. When the gear 58 rotates, it drives the sawtooth bar 57 to move. When the sawtooth bar 57 moves, it fits and moves with the bottom end of the guide bar 59, so that the angle and position of the aeration head 53 are changed, ensuring the uniform distribution of aeration in the whole treatment process, improving the aeration efficiency, making the oxygen content in the water more uniform, and at the same time enabling the aeration system to adapt to the needs of different time periods and treatment stages, improving the flexibility and adaptability of the system, and ensuring that the microorganisms in the water metabolize and decompose pollutants in the best state, thereby improving the treatment effect;

[0036] During the drug mixing process, the drug liquid enters the medicine box 71 through the drug inlet pipe, and at the same time, the second water pump 33 pumps the treated sewage into the medicine box 71, and mixes the drug liquid and sewage inside the medicine box 71. After the drug liquid and sewage are mixed, they enter the sewage treatment tank 1 along the downpipe 74. At this time, the drug liquid and sewage enter the installation plate 75, and enter the arc tube 78 along the installation plate 75. At this time, the drug liquid and sewage impact one end of the V-shaped plate 79 inside the arc tube 78, and the impact force of the water flow drives the V-shaped plate 79 to move. When the V-shaped plate 79 moves, it drives the rotating rod 76 to rotate, and the rotating rod 76 During rotation, the support column 710 drives the rotating stirring member 711 to rotate, and at the same time drives the top stirring member 77 to rotate. During the rotation of the top stirring member 77 and the rotating stirring member 711, the liquid medicine and the sewage are stirred and mixed, so that the liquid medicine and the sewage can be fully mixed, ensuring that the liquid medicine can be evenly distributed in the sewage, improving the treatment efficiency, and making the stirring make the liquid medicine and the sewage fully contact, increasing the effective concentration of the reactants, thereby accelerating the chemical reaction speed and improving the treatment effect. At the same time, the liquid medicine and the sewage can be more fully contacted, reducing the dead corner accumulation of the liquid medicine in the treatment equipment, ensuring the working efficiency of the entire treatment system.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A sewage treatment device with multi-stage filtration function, characterized in that: It comprises a sewage treatment tank (1): the top of the sewage treatment tank (1) is provided with four maintenance ports (2), and a partition plate is provided inside the sewage treatment tank (1), and the partition plate divides the interior of the sewage treatment tank (1) into four spaces; A sewage return structure (3) is installed inside the sewage treatment tank (1), and the sewage return structure (3) comprises a first liter water pump (31) fixedly installed on one side of the inner wall of the sewage treatment tank (1); a connecting pipe (32) is fixedly installed on one end of the first liter water pump (31), and one end of the connecting pipe (32) is located inside the second space of the sewage treatment tank (1); a second liter water pump (33) is installed inside the second space of the sewage treatment tank (1); a guide pipe (34) is fixedly installed on one end of the second liter water pump (33), and one end of the guide pipe (34) is located inside the third space of the sewage treatment tank (1); a third liter water pump (35) is installed inside the third space of the sewage treatment tank (1); a return pipe (36) is fixedly installed on the top of the third liter water pump (35), and the return pipe (36) is fixedly installed inside the first space of the sewage treatment tank (1); Fillers (4) are fixedly installed at equal distances inside the first space and the second space of the sewage treatment tank (1); an aeration structure (5) is fixedly installed at the bottom of the filler (4) in the second space of the sewage treatment tank (1); a drug filtering assembly (7) is fixedly installed on one side of the third space of the sewage treatment tank (1); a filter body (6) is fixedly installed at the bottom of the third space of the sewage treatment tank (1); a water pumping pipe (9) is fixedly installed at the top of the fourth space of the sewage treatment tank (1); and connecting pipes (8) are installed between the first space and the second space and the third space and the fourth space in the sewage treatment tank (1); The aeration structure (5) comprises a hose (51) penetrating the interior of the sewage treatment tank (1), an aeration pipe (52) being fixedly mounted on one end of the hose (51), and an aeration head (53) being fixedly mounted at an equal distance on the top end of the aeration pipe (52); The outer side of the aeration tube (52) is sleeved with a mounting concave rod (54), the inner side of the concave rod (54) is slidably connected to a limit block (55) up and down, one end of the limit block (55) is fixedly mounted with a concave strip (56), the outer side of the concave strip (56) is integrally formed with a sawtooth strip (57), the outer side of the sawtooth strip (57) is meshingly connected with a gear (58), and the gear (58) is fixedly mounted on the outer side of the aeration tube (52); The top end of the sawtooth bar (57) is fittedly connected to a guide bar (59), one end of the guide bar (59) is fixedly mounted with an electric telescopic rod (510), the movable end of the electric telescopic rod (510) is located inside the third space of the sewage treatment tank (1), and the fixed end of the electric telescopic rod (510) is located inside the fourth space of the sewage treatment tank (1); The drug filtering assembly (7) comprises a drug box (71) fixedly mounted inside the fourth space of the sewage treatment tank (1), a vertical plate (72) fixedly mounted inside the drug box (71), and a downpipe (74) fixedly mounted at one end of the drug box (71); A mounting plate (75) is fixedly mounted inside the downpipe (74); a rotating rod (76) is rotatably connected to the middle of the mounting plate (75); a top stirring member (77) is fixedly mounted on the top of the rotating rod (76); support columns (710) are fixedly mounted at equal distances on the top of the rotating rod (76); and a rotating stirring member (711) is sleeved on the outside of the support columns (710).

2. A sewage treatment device with multi-stage filtration function according to claim 1, characterized in that: The top edge of the sawtooth bar (57) is provided with a chamfer of 15 degrees, and the bottom end of the guide bar (59) is provided with an inclination angle of 75 degrees.

3. A sewage treatment device with multi-stage filtration function according to claim 1, characterized in that: Liquid inlet pipes are installed on both sides of the inner wall of the medicine box (71), and the liquid inlet pipes pass through one of the maintenance ports (2). The height of the vertical plate (72) is less than the depth of the medicine box (71).

4. The sewage treatment device with multi-stage filtration function according to claim 1, characterized in that: The bottom end of the mounting plate (75) is fixedly mounted with arc-shaped tubes (78) at equal distances, and the outer side of the rotating rod (76) is fixedly mounted with a V-shaped plate (79) at a position corresponding to the water outlet of the arc-shaped tube (78), and the number of the V-shaped plates (79) and the arc-shaped tubes (78) corresponds one to one.

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