Integrated sewage discharge treatment equipment

Abstract

This invention belongs to the field of wastewater treatment technology, specifically disclosing an integrated wastewater treatment device, including an aeration tank and a sludge treatment structure and a wastewater regulation structure connected to the aeration tank. The sludge treatment structure and the wastewater regulation structure are connected to the inner cavity of the aeration tank. A grid structure is detachably connected to the wastewater regulation structure. An installation pipe is detachably connected to the inside of the aeration tank, and an air guide pipe is rotatably connected to the installation pipe. Cutting blades are fixedly connected to the air guide pipe at equal intervals. The cutting blades include a main cutting blade fixedly connected to the air guide pipe, and a secondary cutting blade is rotatably connected to the main cutting blade. The air outlet pipe in this device can supply air to the inside of the installation pipe. At this time, the air inside the installation pipe can pass through the diversion plate and be transported to the bottom of the guide hood, which can prevent sludge in the wastewater from accumulating around the cutting blades and affecting the cutting of wastewater in the aeration tank by the cutting blades.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and specifically discloses an integrated wastewater discharge treatment device. Background Technology

[0002] Aeration is a core process in integrated wastewater treatment. It refers to the process of forcibly introducing air into a liquid (usually water or wastewater) using artificial equipment to promote the exchange of substances between the gas (such as oxygen) and the liquid. Common wastewater aeration methods include blower aeration and mechanical aeration. Blower aeration mainly uses a blower to force air into the bottom of the water body for diffusion, while mechanical aeration mainly uses an impeller to rotate and cut the surface of the water, thereby entraining air into the water. Compared with blower aeration, mechanical aeration can create turbulent flow of water inside the aeration tank, promote water circulation, and suspend sludge inside the aeration tank, avoiding dead zones in deep water areas. Therefore, mechanical aeration is more widely used in integrated wastewater treatment.

[0003] Although mechanical aeration has many advantages over blower aeration, it still has some shortcomings in practical use: When the impeller in a mechanical aeration device drives the turbulent flow of sewage inside the aeration tank, it can achieve contact between sewage and air, but the contact area between sewage and air is small. This results in poor sewage aeration effect. At the same time, when the impeller drives the turbulent flow of sewage, debris in the sewage tends to accumulate around the impeller, which affects the impeller's cutting effect on the sewage and further affects the contact between sewage and air.

[0004] To address this issue, we propose an integrated wastewater treatment system to solve the problem of poor aeration caused by the small contact area between wastewater and air. Summary of the Invention

[0005] In view of this, the purpose of this invention is to propose an integrated sewage discharge treatment device to solve the problem that the small contact area between sewage and air leads to poor sewage aeration effect.

[0006] To achieve the above objectives, the present invention provides an integrated wastewater treatment device, comprising an aeration tank and a sludge treatment structure and a wastewater regulation structure connected to the aeration tank. The sludge treatment structure and the wastewater regulation structure are connected to the inner cavity of the aeration tank. A grid structure is detachably connected to the wastewater regulation structure. An installation pipe is detachably connected to the interior of the aeration tank. An air guide pipe is rotatably connected to the installation pipe. Cutting blades are fixedly connected at equal intervals to the air guide pipe. The cutting blades include a main cutting blade fixedly connected to the air guide pipe and a secondary cutting blade rotatably connected to the main cutting blade. Air output from the installation pipe can be transmitted to the main cutting blade and the secondary cutting blade. The included angle between the secondary cutting blade and the main cutting blade is an acute angle, and the secondary cutting blade is distributed behind the main cutting blade.

[0007] In the above technical solution, the upper end of the air guide pipe is fixedly connected to a flow guide shroud, which has a hollow structure and a spherical top surface.

[0008] In the above technical solution, the flow guide shroud is further provided with an air jet hole on the side near the air guide pipe, the inner cavity of the flow guide shroud is connected to the inner cavity of the air guide pipe, and the flow guide shroud is distributed above the main cutting blade and the secondary cutting blade.

[0009] In the above technical solution, the lower end of the air guide pipe is fixedly connected to an air inlet pipe, the lower end of the air inlet pipe is fixedly connected to a rotating pipe, the lower end of the rotating pipe is connected to a motor, and air inlet holes are opened at equal intervals on the air inlet pipe.

[0010] In the above technical solution, a flow divider plate and a rotating ring are fixedly connected to the air inlet. A sealed bearing is sleeved on the rotating ring and is snapped onto the mounting tube. The flow divider plate and the rotating ring rotate inside the mounting tube. The top surface of the flow divider plate and the end surface of the mounting tube are coplanar.

[0011] In the above technical solution, a fixing ring is further fixedly connected to the upper part of the mounting pipe, the top surface of the fixing ring and the top surface of the mounting pipe are coplanar, and an air outlet pipe is fixedly connected to the upper part of the mounting pipe.

[0012] In the above technical solution, both the main cutting blade and the auxiliary cutting blade are hollow structures. The main cutting blade is provided with a first cutting part, and a first guide part is provided at the connection between the first cutting part and the main cutting blade.

[0013] In the above technical solution, the main cutting blade is provided with a first air outlet, and a rotating column is fixedly connected to the secondary cutting blade, the rotating column and the main cutting blade being rotatably connected.

[0014] In the above technical solution, the secondary cutting blade is further provided with a second cutting part, the secondary cutting blade is provided with a second air outlet, the connection part between the secondary cutting blade and the second cutting part is provided with a second guide part, and a connecting spring is fixedly connected between the second cutting part and the main cutting blade.

[0015] In the above technical solution, a diversion section is provided at the part of the second guide section near the main cutting blade, an air outlet section is provided at the part of the second cutting section near the diversion section, and a connecting pipe is fixedly connected to the second cutting section, the connecting pipe being fixedly connected to the main cutting blade.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The air outlet pipe in this device can supply air to the inside of the installation pipe. At this time, the air inside the installation pipe can pass through the diversion plate and be transported to the bottom of the guide shroud. This can prevent sludge in the sewage from accumulating around the cutting blades and affecting the cutting of sewage in the aeration tank by the cutting blades.

[0017] 2. When the installation pipe in the device drives the air through the diversion plate to the bottom of the guide hood, the air discharged from the installation pipe can be concentrated around the cutting blades. When the cutting blades cut the sewage in the aeration tank, the sewage can come into uniform contact with the air discharged from the installation pipe, thereby improving the aeration effect of the sewage in the aeration tank.

[0018] 3. When the installation pipe in this equipment drives the air through the diversion plate to the bottom of the guide hood, the air that is not mixed with the sewage can flow downward under the guidance of the guide hood. This allows the air discharged from the installation pipe to come into contact with the sewage cut by the cutting blades again, thereby improving the aeration effect of the sewage inside the aeration tank.

[0019] 4. The flow guide in this equipment can block the sludge that settles in the sewage, which can prevent the sludge falling inside the aeration tank from accumulating around the cutting blades, thus preventing the sludge from affecting the cutting of the sewage by the cutting blades. At the same time, it can also prevent the sludge from clogging the exhaust holes of the diversion plate, thereby improving the aeration effect of the sewage.

[0020] 5. When in use, the cutting blades in this equipment can cut the sludge around the diversion plate, which can prevent the sludge from clumping around the diversion plate. The cut sludge can be blown away by the air conveyed by the diversion plate. At the same time, the diverted sludge can be quickly disturbed by the wastewater cut by the cutting blades, thereby achieving rapid separation of the sludge from the diversion plate and rapid contact between the air discharged from the diversion plate and the cut wastewater.

[0021] 6. The second cutting section in this equipment can cut the sewage again after it has been cut by the first cutting section, which can increase the probability of sewage coming into contact with air. At the same time, when the first cutting section cuts the sewage, the air discharged from the first air outlet can come into contact with the sewage after cutting. When the second cutting section cuts the sewage, the air discharged from the second air outlet can also come into contact with the sewage after cutting, thereby achieving uniform aeration treatment of sewage inside the aeration tank. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the distribution of the fairing and cutting blades in this invention; Figure 3 This is a diagram showing the connection structure between the cutting blade and the air guide tube in this invention; Figure 4 This is a schematic diagram showing the distribution of the cutting blades and the flow divider plate in this invention; Figure 5 This is a diagram showing the connection structure between the flow divider plate and the mounting pipe in this invention; Figure 6 This is a diagram showing the connection structure between the secondary cutting blade and the main cutting blade in this invention; Figure 7 This is a diagram showing the connection structure between the second cutting section and the sub-cutting blade in this invention; Figure 8 This is a schematic diagram of air flowing below the air deflector in this invention.

[0023] Illustration: 1. Sludge treatment structure; 2. Aeration tank; 3. Wastewater conditioning structure; 4. Grille structure; 5. Flow guide hood; 51. Diversion orifice plate; 52. Fixing ring; 53. Air outlet pipe; 54. Installation pipe; 55. Air guide pipe; 56. Rotating pipe; 57. Air inlet pipe; 58. Rotating ring; 59. Air inlet hole; 6. Cutting blade; 61. Main cutting blade; 62. Secondary cutting blade; 63. First air outlet hole; 64. First cutting section; 65. First flow guide section; 66. Connecting spring; 67. Rotating column; 68. Second air outlet hole; 69. Second flow guide section; 610. Second cutting section; 611. Diversion section; 612. Air outlet section; 613. Connecting pipe; 7. Motor; 8. Jet nozzle; 9. Sealed bearing. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0026] In practical use, when the impeller in the existing mechanical aeration equipment drives the turbulent flow of sewage inside the aeration tank, although it can achieve contact between sewage and air, the contact area between sewage and air is small, which leads to poor sewage aeration effect. At the same time, when the impeller drives the turbulent flow of sewage, debris in the sewage tends to accumulate around the impeller, which affects the impeller's cutting effect on sewage and further affects the contact between sewage and air. To solve the above problems, we propose the following structure.

[0027] Example 1 Reference Figure 1-8 As shown, the present invention provides a technical solution: This invention is an integrated wastewater treatment device, comprising an aeration tank 2 and a sludge treatment structure 1 and a wastewater regulating structure 3 connected to the aeration tank 2. The sludge treatment structure 1 and the wastewater regulating structure 3 are connected to the inner cavity of the aeration tank 2. A grid structure 4 is detachably connected to the wastewater regulating structure 3. An installation pipe 54 is detachably connected to the inside of the aeration tank 2. An air guide pipe 55 is rotatably connected to the installation pipe 54. Cutting blades 6 are fixedly connected at equal intervals on the air guide pipe 55. The cutting blades 6 include a main cutting blade 61 fixedly connected to the air guide pipe 55 and a secondary cutting blade 62 rotatably connected to the main cutting blade 61. The air output from the installation pipe 54 can be transmitted to the main cutting blade 61 and the secondary cutting blade 62. The included angle between the secondary cutting blade 62 and the main cutting blade 61 is an acute angle. At the same time, the secondary cutting blade 62 is distributed behind the main cutting blade 61. In actual use, external sewage passes through the bar screen structure 4 and enters the sewage conditioning structure 3. The bar screen structure 4 can filter impurities in the sewage. The filtered sewage will enter the sewage conditioning structure 3 to regulate the water quality. Subsequently, the sewage that has been regulated by the sewage conditioning structure 3 will be aerated in the aeration tank 2. The aerated water will enter the sludge treatment structure 1 to filter sludge, thereby realizing the integrated sewage treatment of the equipment. When the regulated sewage enters the aeration tank 2, the main cutting blade 61 and the secondary cutting blade 62 can cut the sewage transported by the sewage conditioning structure 3, so that the cut sewage can come into contact with air.

[0028] Example 2 Reference Figure 2-8Based on Embodiment 1, the present invention provides a technical solution that differs from Embodiment 1 in that the air transported inside the aeration tank 2 can be guided, so that the sewage cut by the main cutting blade 61 and the secondary cutting blade 62 can be in uniform contact with the air, thereby achieving rapid aeration treatment of the air inside the aeration tank 2.

[0029] A flow guide 5 is fixedly connected to the upper end of the air guide pipe 55. The flow guide 5 has a hollow structure and the top surface of the flow guide 5 has a spherical structure. The air guide pipe 55 can deliver air into the interior of the guide hood 5. Since the guide hood 5 has a spherical structure, it can block the main cutting blade 61 and the secondary cutting blade 62, which can prevent the sludge inside the aeration tank 2 from accumulating around the main cutting blade 61 and the secondary cutting blade 62, and at the same time guide the sludge inside the aeration tank 2.

[0030] The flow guide 5 has a jet hole 8 on the side near the air guide pipe 55. The inner cavity of the flow guide 5 is connected to the inner cavity of the air guide pipe 55. The flow guide 5 is distributed above the main cutting blade 61 and the secondary cutting blade 62. When the air inside the air duct 55 is transported to the interior of the guide hood 5, the air inside the guide hood 5 can be transported to the main cutting blade 61 and the secondary cutting blade 62 through the jet holes 8 opened on the guide hood 5. This allows the air sprayed out of the guide hood 5 to come into contact with the water after being cut by the main cutting blade 61 and the secondary cutting blade 62, thereby achieving rapid aeration treatment of the water inside the aeration tank 2. It should be noted that the jet holes 8 opened on the guide hood 5 are evenly distributed on the guide hood 5.

[0031] An air inlet pipe 57 is fixedly connected to the lower end of the air duct 55, a rotating pipe 56 is fixedly connected to the lower end of the air inlet pipe 57, a motor 7 is connected to the lower end of the rotating pipe 56, and air inlet holes 59 are opened at equal intervals on the air inlet pipe 57. The output shaft of motor 7 can drive the air inlet pipe 57 and air guide pipe 55 to rotate through the rotating pipe 56. At this time, the air guide pipe 55 can drive the guide shroud 5 and the cutting blade 6 to rotate, thereby enabling the cutting blade 6 to cut the sludge around the guide shroud 5 and also to cut the sewage around the guide shroud 5, so as to achieve uniform contact between sewage and air discharged from the guide shroud 5.

[0032] A flow divider plate 51 and a rotating ring 58 are fixedly connected to the air inlet 59. A sealing bearing 9 is sleeved on the rotating ring 58 and is snapped onto the mounting tube 54. The flow divider plate 51 and the rotating ring 58 rotate inside the mounting tube 54. The top surface of the flow divider plate 51 and the end face of the mounting tube 54 are coplanar. The rotating ring 58 can rotate inside the mounting tube 54 via the sealed bearing 9. It should be noted that when the sealed bearing 9 drives the rotating ring 58 and the mounting tube 54 to rotate, the air and water inside the mounting tube 54 cannot flow downward through the gap between the rotating ring 58 and the mounting tube 54. This allows the air inside the mounting tube 54 to flow upward through the diversion plate 51.

[0033] Example 3 Reference Figure 2-8 Based on Embodiment 2, the present invention provides a technical solution that differs from Embodiment 2 in that it can separate the sewage and air around the diversion orifice plate 51, thereby achieving uniform contact between sewage and air and improving the aeration effect of sewage.

[0034] A fixing ring 52 is fixedly connected to the upper part of the mounting pipe 54. The top surface of the fixing ring 52 is coplanar with the top surface of the mounting pipe 54. An air outlet pipe 53 is fixedly connected to the upper part of the mounting pipe 54. An external air pump is connected to the air outlet pipe 53. The external air pump can drive external air through the air outlet pipe 53 into the interior of the mounting pipe 54. At this time, the air inside the mounting pipe 54 can enter the interior of the air guide pipe 55 through the air inlet 59. At the same time, the air inside the mounting pipe 54 can also flow out through the diversion plate 51.

[0035] Both the main cutting blade 61 and the auxiliary cutting blade 62 are hollow structures. The main cutting blade 61 is provided with a first cutting part 64, and a first guide part 65 is provided at the connection between the first cutting part 64 and the main cutting blade 61. When the main cutting blade 61 cuts the sewage and air below the guide shroud 5, the first guide part 65 can guide the sewage and air after cutting, so that the sewage and air can be in uniform contact. The first guide part 65 is an inclined chamfer opened on the main cutting blade 61.

[0036] The main cutting blade 61 has a first air outlet 63, and the auxiliary cutting blade 62 is fixedly connected to a rotating column 67, which is rotatably connected to the main cutting blade 61. When the first guide section 65 guides the sewage and air, the air inside the air guide pipe 55 can enter the interior of the main cutting blade 61, and at the same time, the air inside the main cutting blade 61 can be discharged through the first air outlet 63, so that the air inside the installation pipe 54 can come into contact with the cut sewage again.

[0037] The secondary cutting blade 62 is provided with a second cutting part 610, a second air outlet 68 is provided on the secondary cutting blade 62, a second guide part 69 is provided at the connection between the secondary cutting blade 62 and the second cutting part 610, and a connecting spring 66 is fixedly connected between the second cutting part 610 and the main cutting blade 61. When the second cutting part 610 on the secondary cutting blade 62 cuts the sewage and air after the main cutting blade 61 has cut it, the second guide part 69 can guide the sewage and air. At the same time, the air inside the secondary cutting blade 62 can also be discharged through the second air outlet 68, so that the sewage after cutting can be evenly contacted with the air. The second guide part 69 is an inclined chamfer opened on the secondary cutting blade 62. The connecting spring 66 on the main cutting blade 61 can provide tension to the secondary cutting blade 62, which can prevent the secondary cutting blade 62 from swinging irregularly.

[0038] The second guide section 69 is provided with a diversion section 611 near the main cutting blade 61, and the second cutting section 610 is provided with an air outlet 612 near the diversion section 611. A connecting pipe 613 is fixedly connected to the second cutting section 610. The connecting pipe 613 is a tubular structure made of flexible material. The connecting pipe 613 is fixedly connected to the main cutting blade 61. When the connecting pipe 613 is connected to the main cutting blade 61, the air inside the main cutting blade 61 can enter the interior of the secondary cutting blade 62 through the connecting pipe 613. Reference Figure 6 and Figure 7 The diversion section 611 is a chamfered structure opened on the sub-cutting blade 62. When the air outlet 612 discharges the air inside the sub-cutting blade 62, the sewage around the diversion section 611 can flow to the area around the second guide section 69. This allows the sewage at the connection between the sub-cutting blade 62 and the main cutting blade 61 to be guided to the second guide section 69, thereby allowing the sewage at the connection between the sub-cutting blade 62 and the main cutting blade 61 to come into contact with the air again.

[0039] Working Principle: In actual use, the integrated wastewater treatment equipment allows external wastewater to pass through the bar screen structure 4 and enter the wastewater regulating structure 3. The bar screen structure 4 filters impurities from the wastewater, and the filtered wastewater then enters the wastewater regulating structure 3 to regulate its water quality. After the wastewater has undergone water quality regulation by the regulating structure 3, it undergoes aeration treatment inside the aeration tank 2. When the regulated wastewater enters the aeration tank 2, the output shaft of the motor 7 drives the air inlet pipe 57 to rotate inside the mounting pipe 54 via the rotating pipe 56. At this time, the air inlet pipe 57 drives the guide shroud 5 and the cutting blades 6 to rotate via the air guide pipe 55, thus enabling the main cutting blade 61 and the auxiliary cutting blade 62 to rotate inside the aeration tank 2. The wastewater is cut by the main cutting blade 61 and the auxiliary cutting blade 62 inside the aeration tank 2. At this time, the air inside the installation pipe 54 can flow out through the diversion plate 51. The main cutting blade 61 and the auxiliary cutting blade 62 can also cut the air flowing out of the diversion plate 51, so that the cut wastewater and air can be in uniform contact. When the air inside the installation pipe 54 enters the air guide pipe 55 through the air inlet pipe 57, part of the air will flow through the guide hood 5 to the main cutting blade 61 and the auxiliary cutting blade 62, and the other part of the air will flow out through the main cutting blade 61 and the auxiliary cutting blade 62. This can make the cut wastewater come into contact with the air again, thereby realizing the rapid aeration treatment of wastewater inside the aeration tank 2.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A sewage discharge integrated treatment device, comprising an aeration tank (2) and a sludge treatment structure (1) and a sewage conditioning structure (3) connected to the aeration tank (2), characterized in that: The sludge treatment structure (1) and the wastewater conditioning structure (3) are connected to the inner cavity of the aeration tank (2). A grid structure (4) is detachably connected to the wastewater conditioning structure (3). An installation pipe (54) is detachably connected to the inside of the aeration tank (2). An air guide pipe (55) is rotatably installed inside the installation pipe (54). Cutting blades (6) are fixedly connected at equal intervals on the air guide pipe (55). The cutting blades (6) include a main cutting blade (61) fixedly connected to the air guide pipe (55). A secondary cutting blade (62) is rotatably connected to the main cutting blade (61). The air output from the installation pipe (54) can be directed towards the main cutting blade. The main cutting blade (61) and the secondary cutting blade (62) are passed together. The angle between the secondary cutting blade (62) and the main cutting blade (61) is an acute angle. The secondary cutting blade (62) is located behind the main cutting blade (61). The upper end of the air duct (55) is fixedly connected to the flow guide (5). The flow guide (5) is a hollow structure. The top surface of the flow guide (5) is a spherical structure. The flow guide (5) has a jet hole (8) on the side near the air duct (55). The inner cavity of the flow guide (5) is connected to the inner cavity of the air duct (55). The flow guide (5) is located above the main cutting blade (61) and the secondary cutting blade (62).

2. The integrated wastewater discharge treatment equipment according to claim 1, characterized in that, The lower end of the air guide pipe (55) is fixedly connected to an air inlet pipe (57), the lower end of the air inlet pipe (57) is fixedly connected to a rotating pipe (56), the lower end of the rotating pipe (56) is connected to a motor (7), and air inlet holes (59) are opened at equal intervals on the air inlet pipe (57).

3. The integrated wastewater discharge treatment equipment according to claim 2, characterized in that, A flow divider plate (51) is fixedly connected to the upper part of the air intake pipe (57), and a rotating ring (58) is fixedly connected to the lower part of the air intake pipe (57). A sealing bearing (9) is sleeved on the rotating ring (58), and the sealing bearing (9) is snapped onto the mounting pipe (54). The flow divider plate (51) and the rotating ring (58) rotate inside the mounting pipe (54). The top surface of the flow divider plate (51) and the end surface of the mounting pipe (54) are coplanar.

4. The integrated wastewater discharge treatment equipment according to claim 1, characterized in that, A fixing ring (52) is fixedly connected to the upper part of the mounting tube (54), the top surface of the fixing ring (52) and the top surface of the mounting tube (54) are coplanar, and an air outlet pipe (53) is fixedly connected to the upper part of the mounting tube (54).

5. The integrated wastewater discharge treatment equipment according to claim 1, characterized in that, Both the main cutting blade (61) and the secondary cutting blade (62) are hollow structures. The main cutting blade (61) is provided with a first cutting part (64), and a first guide part (65) is provided at the connection between the first cutting part (64) and the main cutting blade (61).

6. The integrated wastewater discharge treatment equipment according to claim 1, characterized in that, The main cutting blade (61) has a first air outlet (63), and the auxiliary cutting blade (62) is fixedly connected to a rotating column (67), which is rotatably connected to the main cutting blade (61).

7. The integrated wastewater discharge treatment equipment according to claim 1, characterized in that, The secondary cutting blade (62) is provided with a second cutting part (610), the secondary cutting blade (62) is provided with a second air outlet (68), the connection part of the secondary cutting blade (62) and the second cutting part (610) is provided with a second guide part (69), and a connecting spring (66) is fixedly connected between the second cutting part (610) and the main cutting blade (61).

8. The integrated wastewater discharge treatment equipment according to claim 7, characterized in that, The second guide section (69) is provided with a diversion section (611) near the main cutting blade (61), and the second cutting section (610) is provided with an air outlet section (612) near the diversion section (611). A connecting pipe (613) is fixedly connected to the second cutting section (610), and the connecting pipe (613) is fixedly connected to the main cutting blade (61).

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