A device for treating domestic sewage

Abstract

The application discloses a domestic sewage treatment device, which comprises an aeration tank, a first steel pipe, an aeration head, a gas blowing device and a driving mechanism. One side of the aeration tank is provided with a matching hole penetrating through the inside and outside of the aeration tank. The first steel pipe penetrates through the matching hole and is in sealed sliding connection with the matching hole. The inner end of the first steel pipe is a blocking end capable of blocking the matching hole. The outer end of the first steel pipe is a connecting end. The upper side of the first steel pipe is provided with a groove. The aeration head is installed in the groove and is in communication with the first steel pipe. The aeration head is provided with a first state. When the aeration head is in the first state, the upper end of the aeration head is lower than the notch of the groove. The driving mechanism is connected with the connecting end of the first steel pipe and can drive the first steel pipe to move axially so that the aeration mechanism moves to the outside of the aeration tank. The application discloses a domestic sewage treatment device, and maintenance or replacement of the aeration head is more convenient.

Description

Technical Field

[0001] This invention relates to the field of domestic sewage treatment technology, and in particular to a domestic sewage treatment device. Background Technology

[0002] Existing domestic sewage treatment devices can be referenced from the patent with application number CN2013204037843, which includes an aeration tank, a blower, and an aeration head. Domestic sewage is first discharged into the aeration tank, and the blower outputs bubbles to the domestic sewage in the aeration tank through the aeration head, and the domestic sewage in the aeration tank reacts.

[0003] During the construction of existing sewage treatment equipment, pipes are laid at the bottom of the aeration tank, and then aeration heads are installed on the pipes. The pipes and aeration heads are basically fixed to the bottom of the aeration tank and cannot be moved. When the aeration heads need to be repaired, the aeration tank needs to be emptied before workers can enter the aeration tank to handle the aeration heads inside, which is very inconvenient. Summary of the Invention

[0004] In order to solve the problem of inconvenient maintenance or replacement of aeration heads in existing domestic sewage treatment devices, this invention proposes a domestic sewage treatment device that makes maintenance or replacement of aeration heads more convenient.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A domestic sewage treatment device includes: an aeration tank, a first steel pipe, an aeration head, an aeration device, and a drive mechanism; a mating hole penetrating the inner and outer sides of the aeration tank is provided on one side; the first steel pipe passes through the mating hole and is slidably connected to it in a sealed manner, the inner end of the first steel pipe is a sealing end that can seal the mating hole, the outer end of the first steel pipe is a connecting end, and a groove is provided on the upper side of the first steel pipe, the groove being located between the sealing end and the connecting end, and the width W of the groove in the axial direction of the mating hole is less than the length L of the mating hole; the aeration head is installed in the groove and communicates with the first steel pipe, the aeration head is in a first state, when the aeration head is in the first state, the upper end of the aeration head is lower than the groove opening; the aeration device can supply compressed air to the first steel pipe to make the aeration head output bubbles for aeration treatment of domestic sewage in the aeration tank; the drive mechanism is connected to the connecting end of the first steel pipe and can drive the first steel pipe to move axially, so that the aeration mechanism moves outside the aeration tank.

[0007] With the above setup, the drive mechanism drives the first steel pipe to move out of the aeration tank, so that the aeration head can be moved outside the aeration tank for maintenance. This provides a better working environment for the operators and is beneficial to their health. The first steel pipe seals the mating hole to prevent water leakage when it moves. When the aeration head needs maintenance, there is no need to empty the domestic sewage in the aeration tank, which facilitates maintenance and shortens maintenance time.

[0008] Furthermore, the treatment device also includes a lift pump, a sedimentation tank, and a transfer pump. The lift pump can transport domestic sewage into the aeration tank, and the transfer pump can pump the domestic sewage in the aeration tank to the sedimentation tank for sedimentation treatment.

[0009] The above setup facilitates, firstly, the addition of domestic sewage to the aeration tank, and secondly, the transportation of the aerated domestic sewage to the sedimentation tank for further treatment.

[0010] Furthermore, the sedimentation tank is located on the side of the aeration tank near the mating hole, and a maintenance room is located below the sedimentation tank. One end of the maintenance room extends to the outer wall of the aeration tank, and the other end of the maintenance room is provided with an entrance connecting to the ground. The outer end of the first steel pipe is located in the maintenance room, and the drive mechanism is installed in the maintenance room.

[0011] The above setup saves space usage.

[0012] Furthermore, the first steel pipe is provided in multiple parallel sections. The processing device also includes a second steel pipe and a hose. The connecting end of the first steel pipe is fixedly connected to the second steel pipe and communicates with the second steel pipe. The air blowing device is connected to the second steel pipe through the hose.

[0013] With the above configuration, the air blowing device delivers compressed air to the first steel pipe through a hose and a second steel pipe. When the first steel pipe is in motion, the hose can deform to maintain the connection between the air blowing device and the first steel pipe.

[0014] Furthermore, the driving mechanism includes: a guide rail, a slider, a lead screw, and a motor; the guide rail and the first steel pipe are arranged in parallel; the slider is slidably connected to the slider, and the second steel pipe is installed on the slider; the lead screw is rotatably connected above the guide rail, and the lead screw is threadedly connected to the slider; the motor is drively connected to the lead screw to drive the lead screw to rotate.

[0015] With the above setup, the motor drives the first steel pipe to move via a lead screw and a slider.

[0016] Furthermore, the treatment device also includes a traction mechanism, which includes: a first guide wheel, a second guide wheel, a winch, and a traction rope; the first guide wheel is installed on the inner wall of the aeration tank on the side away from the mating hole; the second guide wheel is installed on the upper side of the aeration tank; the winch is installed on the ground; one end of the traction rope is connected to the winch, and the other end of the traction rope passes through the second guide wheel and the first guide wheel and is connected to the sealing end of the first steel pipe so as to apply axial tension to the first steel pipe.

[0017] The above-mentioned design prevents the first steel pipe from buckling out of plane when it moves into the aeration tank.

[0018] Furthermore, the aeration head includes: a fixing sleeve, a connecting pipe, a limiting protrusion, an mounting head, an aeration layer, and a spring; the lower end of the fixing sleeve is vertically fixedly connected to the bottom of the groove, and a through hole penetrating to the inside of the first steel pipe is provided inside the fixing sleeve. Air holes penetrating the inner and outer sides of the fixing sleeve are provided on the side of the fixing sleeve, with the air holes near the lower end of the fixing sleeve; the connecting pipe passes through the through hole and is slidably sealed to the through hole, and a long hole extending vertically is provided on the side of the connecting pipe, located inside the fixing sleeve; the limiting protrusion is fixedly connected to the outer side of the lower end of the connecting pipe; the mounting head is fixedly connected to the upper end of the connecting pipe, and an air outlet is provided on the upper side of the mounting head, which communicates with the first steel pipe through the connecting pipe; the aeration layer is installed on the air outlet to cut the air output from the air outlet; the upper end of the spring is connected to the mounting head, and the lower end of the spring is connected to the bottom of the groove; when the aeration head is in the first state, the mounting head contacts the upper end of the fixing sleeve, and the air outlet communicates with the first steel pipe through the long hole;

[0019] The aeration head also has a second state. When the aeration head is in the second state, the limiting protrusion contacts the inner wall of the first steel pipe, the spring is in a stretched state, the elongated hole is located above the air hole and is offset from the air hole, and the upper side of the aeration layer is higher than the groove opening.

[0020] With the above settings, firstly, the aeration layer is not easily clogged; secondly, when the aeration device stops supplying compressed air, the remaining compressed air in the first steel pipe can flush away the sediment in the groove through the air hole, allowing the aeration layer to move smoothly downwards to below the groove opening. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the processing apparatus in an embodiment.

[0022] Figure 2 for Figure 1 A magnified view of point A.

[0023] Figure 3 This is a schematic diagram of the aeration head in the second state in an embodiment. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] See Figures 1 to 3A domestic sewage treatment device includes: an aeration tank 2, a first steel pipe 3, an aeration head 4, an aeration device (not shown in the figure), and a drive mechanism 5; a mating hole 6 penetrating the inner and outer sides of the aeration tank 2 is provided on one side; the first steel pipe 3 passes through the mating hole 6 and is slidably connected to the mating hole 6 in a sealed manner, the inner end of the first steel pipe 3 is a sealing end that can seal the mating hole 6, the outer end of the first steel pipe 3 is a connecting end, and a groove 7 is provided on the upper side of the first steel pipe 3, the groove 7 being located between the sealing end and the connecting end, and the groove 7 is axially aligned with the mating hole 6. The width W in the linear direction is less than the length L of the mating hole 6; the aeration head 4 is installed in the groove 7 and connected to the first steel pipe 3. The aeration head 4 is in a first state. When the aeration head 4 is in the first state, the upper end of the aeration head 4 is lower than the groove opening of the groove 7; the aeration device can deliver compressed air to the first steel pipe 3 so that the aeration head 4 outputs bubbles to aerate the domestic sewage in the aeration tank 2; the drive mechanism 5 is connected to the connecting end of the first steel pipe 3 and can drive the first steel pipe 3 to move axially so that the aeration mechanism moves outside the aeration tank 2.

[0026] With the above settings, the drive mechanism 5 drives the first steel pipe 3 to move out of the aeration tank 2, so that the aeration head 4 can be moved outside the aeration tank 2 for maintenance. This provides a better working environment for the operators and is beneficial to their health. The first steel pipe 3 seals the mating hole 6 to prevent water leakage when it moves. When the aeration head 4 needs maintenance, there is no need to empty the domestic sewage in the aeration tank 2, which facilitates maintenance and shortens maintenance time.

[0027] In this application, the walls of the aeration tank 2 are made of concrete, which has the characteristics of high strength and good stability. A cylindrical sliding sleeve is pre-embedded in the wall of the aeration tank 2, and the inner side of the cylindrical sliding sleeve forms the aforementioned mating hole 6. The first steel pipe 3 is a round pipe, and the upper side of the first steel pipe 3 is concave downward to form the aforementioned groove 7. The inner side of the groove 7 is basically a frustum shape with a larger upper part and a smaller lower part, which facilitates the maintenance of the aeration head 4 in the groove 7 by the operator. During aeration, the aeration tank 2 contains domestic sewage. The aeration device outputs air bubbles to the domestic sewage in the aeration tank 2 through the first steel pipe 3 and the aeration head 4. The aeration head 4 can be purchased from the market. When it is necessary to maintain the aeration head 4 in the aeration tank 2, the drive mechanism 5 drives the first steel pipe 3 to move out of the aeration tank 2. The aeration head 4 moves to the outside of the aeration tank 2 through the mating hole 6. When the aeration head 4 passes through the mating hole 6, since the upper side of the aeration head 4 is lower than the upper side of the groove 7, the aeration head 4 will not interfere with the mating hole 6. In addition, since the width W of the groove 7 is less than the length L of the mating hole 6, the sewage in the aeration tank 2 will not leak out through the mating hole 6 and the groove 7. When the sealing end moves to the mating hole 6, the sealing end seals the mating hole 6. At this time, all the aeration heads 4 are located outside the aeration tank 2, which is convenient for operators outside the aeration tank 2 to maintain the aeration heads 4. The air outside the aeration tank 2 is fresh and beneficial to human health. After the maintenance is completed, the drive mechanism 5 drives the first steel pipe 3 to move into the aeration tank 2, so that the aeration head 4 returns to the aeration tank 2.

[0028] As one implementation method, the treatment device also includes a lift pump (not shown in the figure), a sedimentation tank 8, and a transfer pump (not shown in the figure). The lift pump can transport domestic sewage into the aeration tank 2, and the transfer pump can pump the domestic sewage in the aeration tank 2 to the sedimentation tank 8 for sedimentation treatment.

[0029] With the above setup, firstly, it is convenient to add domestic sewage to the aeration tank 2, and secondly, it is convenient to transport the aerated domestic sewage to the sedimentation tank 8 for further treatment.

[0030] As one implementation, the sedimentation tank 8 is located on the side of the aeration tank 2 near the mating hole 6. A maintenance chamber 9 is located below the sedimentation tank 8. One end of the maintenance chamber 9 extends to the outer wall of the aeration tank 2, and the other end of the maintenance chamber 9 is provided with an inlet 10 connecting to the ground. The outer end of the first steel pipe 3 is located in the maintenance chamber 9, and the drive mechanism 5 is installed in the maintenance chamber 9.

[0031] The above setup saves space usage.

[0032] In this application, a staircase can be installed at the entrance 10 to facilitate operators to enter the maintenance room 9 via the staircase to perform maintenance on the aeration head 4.

[0033] As one implementation, multiple first steel pipes 3 are provided, and the multiple first steel pipes 3 are parallel to each other. The processing device also includes a second steel pipe 11 and a hose (not shown in the figure). The connecting end of the first steel pipe 3 is fixedly connected to the second steel pipe 11 and communicates with the second steel pipe 11. The air blowing device is connected to the second steel pipe 11 through the hose.

[0034] With the above configuration, the air blowing device delivers compressed air to the first steel pipe 3 through the hose and the second steel pipe 11. When the first steel pipe 3 is in motion, the hose can deform to maintain the connection between the air blowing device and the first steel pipe 3.

[0035] As one implementation, the drive mechanism 5 includes: a guide rail 51, a slider 52, a lead screw 53, and a motor 54; the guide rail 51 and the first steel pipe 3 are arranged in parallel; the slider 52 is slidably connected to the slider 52, and the second steel pipe 11 is installed on the slider 52; the lead screw 53 is rotatably connected above the guide rail 51, and the lead screw 53 is threadedly connected to the slider 52; the motor 54 is drively connected to the lead screw 53 to drive the lead screw 53 to rotate.

[0036] With the above configuration, the motor 54 drives the first steel pipe 3 to move through the lead screw 53 and the slider 52.

[0037] In this application, the guide rail 51 increases the stability of the slider 52's movement; the lower side of the guide rail 51 is installed in the maintenance chamber 9 by fasteners, the slider 52 supports the second steel pipe 11, when the motor 54 drives the lead screw 53 to rotate around the axis of the lead screw 53, the lead screw 53 and the slider 52 rotate relative to each other, and the slider 52 drives the first steel pipe 3 to move outward or inward through the second steel pipe 11.

[0038] As one implementation, the treatment device also includes a traction mechanism 12, which includes: a first guide wheel 121, a second guide wheel 122, a winch 123, and a traction rope 124; the first guide wheel 121 is installed on the inner wall of the aeration tank 2 away from the mating hole 6; the second guide wheel 122 is installed on the upper side of the aeration tank 2; the winch 123 is installed on the ground; one end of the traction rope 124 is connected to the winch 123, and the other end of the traction rope 124 is connected to the sealing end of the first steel pipe 3 after passing through the second guide wheel 122 and the first guide wheel 121, so as to apply axial tension to the first steel pipe 3.

[0039] The above-mentioned design prevents the first steel pipe 3 from buckling out of plane when it moves into the aeration tank 2.

[0040] In this application, when the drive mechanism 5 drives the first steel pipe 3 to move out of the aeration tank 2, the winch 123 slowly releases the traction rope 124. When the drive mechanism 5 drives the first steel pipe 3 to move into the aeration tank 2, the winch 123 slowly winds the traction rope 124. The traction rope 124 applies an axial tension to the first steel pipe 3, helping the drive mechanism 5 to drive the first steel pipe 3 together, preventing the drive mechanism 5 from applying too much thrust to the first steel pipe 3 and causing the first steel pipe 3 to buckle out of plane.

[0041] As one implementation, the aeration head 4 includes: a fixing sleeve 41, a connecting pipe 42, a limiting protrusion 43, a mounting head 44, an aeration layer 45, and a spring 46; the lower end of the fixing sleeve 41 is vertically fixed to the bottom of the groove 7, and a through hole penetrating to the inner side of the first steel pipe 3 is provided inside the fixing sleeve 41. Air holes 411 penetrating the inner and outer sides of the fixing sleeve 41 are provided on the side of the fixing sleeve 41, with the air holes 411 near the lower end of the fixing sleeve 41; the connecting pipe 42 passes through the through hole and is slidably connected to it in a sealed manner, and a long hole 421 extending vertically is provided on the side of the connecting pipe 42, with the long hole 421 located on the fixing sleeve 46. 1. Inside; the limiting protrusion 43 is fixedly connected to the outer side of the lower end of the connecting pipe 42; the mounting head 44 is fixedly connected to the upper end of the connecting pipe 42, and the upper side of the mounting head 44 is provided with an air outlet 441, which is connected to the first steel pipe 3 through the connecting pipe 42; the aeration layer 45 is installed on the air outlet 441 to cut the air output from the air outlet 441; the upper end of the spring 46 is connected to the mounting head 44, and the lower end of the spring 46 is connected to the bottom of the groove 7; when the aeration head 4 is in the first state, the mounting head 44 contacts the upper end of the fixing sleeve 41, and the air outlet 441 is connected to the first steel pipe 3 through the elongated hole 421;

[0042] The aeration head 4 is also provided with a second state. When the aeration head 4 is in the second state, the limiting protrusion 43 is in contact with the inner wall of the first steel pipe 3, the spring 46 is in a stretched state, the elongated hole 421 is located above the air hole 411 and is offset from the air hole 411, and the upper side of the aeration layer 45 is higher than the groove opening of the groove 7.

[0043] With the above settings, firstly, the aeration layer 45 is not easily clogged; secondly, when the aeration device stops supplying compressed air, the remaining compressed air in the first steel pipe 3 can flush away the sediment in the groove 7 through the air hole 411, so that the aeration layer 45 can move smoothly downward to below the groove opening of the groove 7.

[0044] In this application, the material of the aeration layer 45 can be referenced from that of the aeration pipe; when the aeration device supplies compressed air to the first steel pipe 3, the air pressure inside the first steel pipe 3 increases. Under the action of air pressure, the spring 46 extends, and the mounting head 44 and the aeration layer 45 move upward. The limiting protrusion 43 contacts the inner side of the first steel pipe 3 to prevent the connecting pipe 42 from continuing to move upward. The elongated hole 421 and the air hole 411 are staggered to prevent air leakage from the air hole 411. The compressed air moves upward through the connecting pipe 42, and the aeration layer 45 cuts the compressed air to form microbubbles. These bubbles aerate and treat domestic sewage. See [reference needed] Figure 3 During aeration, some larger particles may settle into the groove 7. At this time, the upper side of the aeration layer 45 is higher than the opening of the groove 7 to prevent impurities from covering and clogging the aeration layer 45. When maintenance of the aeration head 4 is required, the blower stops supplying compressed air. The remaining compressed air in the first steel pipe 3 continues to supply bubbles through the aeration layer 45, causing the air pressure in the first steel pipe 3 to gradually decrease. Under the tension of the spring 46, the connecting pipe 42 and the mounting head 44 slowly descend. When the lower end of the elongated hole 421 reaches the air hole 411, the remaining compressed air in the first steel pipe 3 is ejected through the elongated hole 421 and the air hole 411, flushing away the larger particles in the groove 7 and preventing the mounting head 44 from getting stuck when moving downwards. Finally, see... Figure 2 Under the action of spring 46, the mounting head 44 contacts the upper end of the connecting pipe 42, and the aeration head 4 is in the first state so that the driving mechanism 5 can drive the first steel pipe 3 outward.

[0045] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A domestic sewage treatment device, characterized in that, include: An aeration tank, wherein a mating hole is provided on one side of the aeration tank, penetrating the inner and outer sides of the aeration tank; The first steel pipe passes through the mating hole and is slidably connected to the mating hole in a sealed manner. The inner end of the first steel pipe is a sealing end that can block the mating hole, and the outer end of the first steel pipe is a connecting end. A groove is provided on the upper side of the first steel pipe. The groove is located between the sealing end and the connecting end, and the width W of the groove in the axial direction of the mating hole is less than the length L of the mating hole. An aeration head is installed in the groove and communicates with the first steel pipe. The aeration head is set to a first state. When the aeration head is in the first state, the upper end of the aeration head is lower than the opening of the groove. An aeration device is provided, which can supply compressed air to the first steel pipe so that the aeration head outputs bubbles to aerate and treat domestic sewage in the aeration tank. A driving mechanism is connected to the connecting end of the first steel pipe and can drive the first steel pipe to move axially so that the aeration mechanism can move outside the aeration tank. The aeration head includes: A fixing sleeve, the lower end of which is vertically fixed to the bottom of the groove, a through hole extending to the inside of the first steel pipe is provided inside the fixing sleeve, and an air hole extending through the inner and outer sides of the fixing sleeve is provided on the side of the fixing sleeve, the air hole being close to the lower end of the fixing sleeve. A connecting tube passes through the through hole and is slidably connected to the through hole in a sealed manner. The side of the connecting tube is provided with an elongated hole extending vertically, and the elongated hole is located inside the fixing sleeve. A limiting protrusion is fixedly connected to the outer side of the lower end of the connecting pipe; The mounting head is fixedly connected to the upper end of the connecting pipe, and an air outlet is provided on the upper side of the mounting head. The air outlet is connected to the first steel pipe through the connecting pipe. An aeration layer is installed on the air outlet to cut the air output from the air outlet; A spring, the upper end of which is connected to a mounting head, and the lower end of which is connected to the bottom of a groove; When the aeration head is in the first state, the mounting head is in contact with the upper end of the fixing sleeve, and the air outlet is connected to the first steel pipe through the elongated hole; The aeration head is also provided with a second state. When the aeration head is in the second state, the limiting protrusion is in contact with the inner wall of the first steel pipe, the spring is in a stretched state, the elongated hole is located above the air hole and is offset from the air hole, and the upper side of the aeration layer is higher than the groove opening.

2. The domestic sewage treatment device according to claim 1, characterized in that, The treatment device also includes a lift pump, a sedimentation tank, and a transfer pump. The lift pump can transport domestic sewage into the aeration tank, and the transfer pump can pump the domestic sewage in the aeration tank to the sedimentation tank for sedimentation treatment.

3. A domestic sewage treatment device according to claim 2, characterized in that, The sedimentation tank is located on the side of the aeration tank near the mating hole. A maintenance room is located below the sedimentation tank. One end of the maintenance room extends to the outer wall of the aeration tank, and the other end of the maintenance room is provided with an entrance connecting to the ground. The outer end of the first steel pipe is located in the maintenance room, and the drive mechanism is installed in the maintenance room.

4. A domestic sewage treatment device according to claim 1, characterized in that, The first steel pipe is provided in multiple parallel sections. The processing device also includes a second steel pipe and a hose. The connecting end of the first steel pipe is fixedly connected to the second steel pipe and communicates with the second steel pipe. The air blowing device is connected to the second steel pipe through the hose.

5. A domestic sewage treatment device according to claim 4, characterized in that, The drive mechanism includes: The guide rail is arranged parallel to the first steel pipe; A slider, wherein the slider is slidably connected to the slider, and the second steel pipe is mounted on the slider; A lead screw is rotatably connected above the guide rail, and the lead screw is threadedly connected to the slider. An electric motor is connected to the lead screw drive to drive the lead screw to rotate.

6. A domestic sewage treatment device according to claim 5, characterized in that, The processing device further includes a traction mechanism, the traction mechanism comprising: The first guide wheel is installed on the inner wall of the aeration tank on the side away from the mating hole; The second guide wheel is installed on the upper side of the aeration tank; A winch, said winch being installed on the ground; A traction rope, one end of which is connected to the winch, and the other end of which passes through the second guide wheel and the first guide wheel and is connected to the sealing end of the first steel pipe, so as to apply axial tension to the first steel pipe.

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