Wastewater centralized treatment device

Abstract

The utility model discloses a wastewater centralized treatment device, and belongs to the field of wastewater treatment devices. The lower end of the treatment tank is of a conical structure with the downward cross section area gradually reduced; the shielding cone plate is arranged in the treatment tank; the drain pipe is arranged on the side wall of the treatment tank, one end extends into the treatment tank and is positioned on the upper side of the shielding cone plate, and the other end is connected with an external water pump; the blow-off pipe is arranged at the bottom end of the treatment tank, and one end of the blow-off pipe extends into the treatment tank and is positioned on the lower side of the shielding cone plate; the cylinder is vertically and fixedly arranged at the lower end of the treatment tank, and one end of a piston rod of the cylinder is fixedly connected with the shielding cone plate. The wastewater centralized treatment device has the beneficial effects that the lower end of the shielding conical plate abuts against the inner wall of the lower side of the treatment tank to shield sediments, softened wastewater can be discharged through the drainage pipe at the moment, the sediments are prevented from being discharged together due to flowing of water flow, the sediments on the lower side of the shielding conical plate are discharged through the blow-off pipe, and the treatment efficiency is improved. Therefore, separation is performed.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment devices, and more specifically, to a centralized wastewater treatment device. Background Technology

[0002] Gasification wastewater refers to wastewater generated through gasification technology in industrial processes such as coal chemical industry. This type of wastewater typically contains high concentrations of organic matter, ammonia nitrogen, salt, and other pollutants that are difficult to degrade, making it challenging to treat. In addition to removing hardening agents, gasification wastewater is often treated by directly removing sediment through flocculants. However, during continuous treatment, sediment will form in the wastewater and needs to be separated from the gasification wastewater to achieve softening. However, the efficiency of separation methods such as filtration is low, affecting the softening efficiency. Currently, carbon dioxide is typically introduced into the wastewater for aeration, causing calcium and magnesium ions to precipitate and soften the water. Existing treatment devices require filtering the sediment to separate it from the softened water, necessitating a secondary operation that is cumbersome. Furthermore, the sediment adheres to the side walls of the aeration container, making it difficult to clean.

[0003] Therefore, a centralized wastewater treatment device is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a centralized wastewater treatment device, comprising: a treatment tank, the lower end of which is a conical structure with a gradually decreasing cross-sectional area; a shielding cone plate, disposed inside the treatment tank, also being a conical structure with a gradually increasing cross-sectional area; a drain pipe, disposed on the side wall of the treatment tank, one end extending into the treatment tank and located above the shielding cone plate, and the other end connected to an external water pump; a sewage discharge pipe, disposed at the bottom of the treatment tank, one end extending into the treatment tank and located below the shielding cone plate, and the other end connected to an external sewage pump; and a cylinder, vertically fixedly disposed at the lower end of the treatment tank, with a piston rod... One end is fixedly connected to the shielding cone plate; the treatment tank is also equipped with a cleaning component for cleaning the inner wall of the treatment tank and an aeration component for aeration. The cleaning component includes: a mounting platform fixed inside the treatment tank, a drive motor fixedly connected to the mounting platform, a hollow tube rotatably connected to the mounting platform, the drive motor drives the hollow tube to rotate, an aeration disc for introducing aeration gas is fixedly connected to the hollow tube, a cleaning frame is fixedly arranged in a circumferential array on the hollow tube, the cleaning frame is fixedly connected to the hollow tube by a connecting rod, a rotating sleeve is rotatably connected to the cleaning frame, and scraper components are fixedly arranged in a circumferential array on the rotating sleeve, one of the scraper components is in close contact with the inner wall of the treatment tube.

[0006] With the installed shielding cone, during aeration, the lower end of the shielding cone does not touch the lower inner wall of the treatment tank, allowing the sediment to slide down the cone structure at the lower end of the treatment tank to the lower side of the shielding cone. During separation, the lower end of the shielding cone touches the lower inner wall of the treatment tank, blocking the sediment. At this time, the softened wastewater can be discharged through the drain pipe, preventing the sediment from being discharged along with the water flow. The sediment under the shielding cone is discharged through the sewage pipe, thus achieving separation and avoiding the need for secondary filtration. At the same time, the installed scraper can clean the inner wall of the treatment tank under the action of the drive motor, preventing sediment from adhering to the inner wall of the treatment tank.

[0007] Furthermore, a rotating shaft passing through a rotating sleeve is rotatably connected to the cleaning frame, and a torsion spring is connected between the rotating shaft and the rotating sleeve. The two ends of the torsion spring are respectively fixed to the outer side wall of the rotating shaft and the inner side wall of the rotating sleeve.

[0008] With the help of the torsion spring, when the rotating shaft rotates to a certain angle, the scraper piece comes into contact with the inner wall of the treatment tank, and the torsion spring is deformed by the force. At this time, the scraper piece can generate a certain contact force with the inner wall of the treatment tank, ensuring the cleaning effect.

[0009] Furthermore, an abutment block is fixedly connected to the outer wall of the rotating shaft, and a limiting block for abutting against the abutment block is fixedly connected to the inner wall of the rotating sleeve.

[0010] When the rotating shaft rotates at a certain angle, the abutment block pushes the limiting block, thereby enabling the rotating sleeve to rotate. This allows the other scraper to remain tightly attached to the inner wall of the treatment tank when one scraper component is damaged and needs to be replaced.

[0011] Furthermore, a limiting disc that extends through the rotating sleeve is fixedly connected to the upper end of the rotating shaft. The limiting disc has multiple limiting grooves arranged in a circular array. The limiting grooves extend radially along the limiting disc. A limiting head for embedding into the limiting groove is provided on the cleaning frame.

[0012] The limit plate is designed so that when it is rotated, it can drive the rotating shaft to rotate. After the limit plate rotates to a certain angle, the limit head can be inserted into the limit groove to limit the limit plate.

[0013] Furthermore, multiple aeration components that are arranged in a circular array and communicate with the hollow tube are fixedly connected to the aeration disc. Each aeration component includes two aeration plates arranged side by side and a connecting part that is fixedly connected to the two aeration plates. One end of the connecting part is fixedly set on the hollow tube. The aeration plates arranged in a circular array form a fan blade structure and air outlet holes are opened on the aeration plates.

[0014] With the aeration discs and aeration plates set up, when aeration gas is introduced into the aeration discs through the hollow tube, it is discharged through the air outlets on the aeration plates, thus performing the aeration operation.

[0015] Furthermore, an air pump for introducing aeration gas into the hollow tube is fixedly connected to the mounting platform. An air baffle is also fixedly connected to the mounting platform. The hollow tube passes through the air baffle, and the air baffle is connected to the air outlet of the air pump through an air pipe. The hollow tube has circumferentially arrayed air inlets on its side wall, and the air inlets are located inside the air baffle.

[0016] The aeration gas is introduced into the hollow tube through the air inlet by the air pump and the air baffle.

[0017] Furthermore, a sleeve is fitted at the lower end of the hollow tube, which slides axially with the hollow tube. An inclined scraper with a circumferential array is fixedly connected to the sleeve. The inclined scraper is in contact with the upper conical surface of the shielding cone plate. A compression spring is connected between the sleeve and the hollow tube.

[0018] The sleeve and inclined scraper can clean the sediment on the upper cone surface of the shielding cone, preventing sediment from adhering to the shielding cone.

[0019] Furthermore, the scraper component is made of rubber.

[0020] When the scraper is in contact with the inner wall of the treatment tank, it will continue to be subjected to force and will undergo a certain deformation.

[0021] The beneficial effects of this application are as follows:

[0022] 1. With the installed shielding cone, when aeration is performed, the lower end of the shielding cone does not touch the lower inner wall of the treatment tank, allowing the sediment to slide down the left and right sides of the cone-shaped structure at the lower end of the treatment tank to the lower side of the shielding cone. When separation is performed, the lower end of the shielding cone can touch the lower inner wall of the treatment tank to shield the sediment. At this time, the softened wastewater can be discharged through the drain pipe, avoiding the sediment from being discharged along with the water flow. The sediment under the shielding cone is discharged through the sewage pipe, thus achieving separation and avoiding the need for secondary filtration.

[0023] 2. The scraper components can clean the inner wall of the treatment tank under the action of the drive motor, preventing sediment from adhering to the inner wall of the treatment tank.

[0024] 3. The abutment block pushes the limit block, which in turn allows the rotating sleeve to rotate, so that when one scraper component is damaged and needs to be replaced, the other scraper component can continue to be tightly attached to the inner wall of the treatment tank.

[0025] 4. The sleeve and inclined scraper can clean the sediment on the upper cone surface of the shielding cone plate, preventing sediment from adhering to the shielding cone plate. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0027] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0028] In the attached diagram:

[0029] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0030] Figure 2 yes Figure 1 The installation diagram of the shielding cone plate in the embodiment is shown below;

[0031] Figure 3 yes Figure 1 The installation diagram of the aeration disc in the embodiment is shown below;

[0032] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0033] Figure 5 yes Figure 1 A schematic diagram of the cleaning frame in the embodiment;

[0034] Figure 6 yes Figure 1 The embodiment is shown in the schematic diagram of the installation of the rotating sleeve and the rotating shaft;

[0035] Figure 7 yes Figure 1 A schematic diagram of the cross-section of the rotation axis perpendicular to the axis described in the embodiment.

[0036] Figure label:

[0037] 10. Treatment tank; 11. Baffle cone; 12. Drain pipe; 13. Sewage pipe; 14. Cylinder; 15. Mounting platform; 16. Drive motor; 17. Hollow tube; 18. Cleaning frame; 19. Connecting rod; 20. Rotating sleeve; 21. Scraper; 22. Support foot; 23. Aeration disc; 24. Air pump; 25. Air baffle; 26. Air inlet; 27. Rotating shaft; 28. Torsion spring; 29. ​​Abutment block; 30. Limiting block; 31. Limiting disc; 32. Limiting groove; 33. Limiting head; 34. Connecting part; 35. Aeration plate; 36. Air outlet; 37. Sleeve; 38. Inclined scraper; 39. Compression spring. Detailed Implementation

[0038] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0039] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0040] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0041] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0042] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Reference Figure 1-7A centralized wastewater treatment device includes: a treatment tank 10, a shielding cone plate 11, a drain pipe 12, a sewage pipe 13, a cylinder 14, a mounting platform 15, a drive motor 16, a hollow pipe 17, a cleaning frame 18, a connecting rod 19, a rotating sleeve 20, and a scraper 21. The lower end of the treatment tank 10 is a conical structure with a gradually decreasing cross-sectional area, making the lower end of the inner cavity of the treatment tank 10 also conical. Three support feet 22 are also fixedly connected to the lower end of the treatment tank 10. A shielding cone plate 11 is installed inside the treatment tank 10, and the shielding cone plate 11 is a conical structure with a gradually increasing cross-sectional area. A drain pipe 12 is connected to the side wall of the treatment tank 10, with one end extending into the treatment tank 10 and located above the shielding cone plate 11, and the other end connected to an external water pump. A drain pipe 13 is connected to the bottom of the treatment tank 10. One end of the drain pipe 13 extends into the treatment tank 10 and is located below the shielding cone plate 11, while the other end is connected to an external sludge pump for removing sediment. A cylinder 14 is vertically fixed at the lower end of the treatment tank 10, and one end of the piston rod of the cylinder 14 is fixedly connected to the shielding cone plate 11. A mounting platform 15 is fixedly connected to the treatment tank 10, and a hollow tube 17 is rotatably connected to the mounting platform 15. An aeration disc 23 for introducing aeration gas is fixedly connected to the hollow tube 17. An air pump 24 for introducing aeration gas into the hollow tube 17 is fixedly connected to the mounting platform 15. An air baffle 25 is also fixedly connected to the mounting platform 15. The hollow tube 17 passes through the air baffle 25, which is connected to the air outlet of the air pump 24 via an air pipe. The hollow tube 17 has circumferentially arrayed air inlets 26 on its side wall, located inside the air baffle 25. During aeration, the piston end of the cylinder 14 extends, preventing the shielding cone 11 from contacting the lower inner wall of the treatment tank 10. At this time, the sediment can slide down the left and right sides of the cone structure at the lower end of the treatment tank 10 to the lower position of the shielding cone 11. When aeration is complete and sediment needs to be separated, the piston end of the cylinder 14 retracts, causing the shielding cone 11 to contact the lower inner wall of the treatment tank 10, blocking the sediment. The softened wastewater can then be discharged through the drain pipe 12. The drain pipe 13 discharges the sediment below the shielding cone 11, thereby achieving separation. In one embodiment, the aeration gas can be carbon dioxide gas, which, after aerating the wastewater, causes calcium and magnesium ions in the wastewater to precipitate.

[0044] To prevent sediment from adhering to the side wall of the treatment tank 10, a drive motor 16 is fixedly connected to the mounting platform 15. The power output end of the drive motor 16 is fixedly connected to the hollow tube 17. Four cleaning frames 18 are fixedly mounted in a circumferential array on the hollow tube 17. The cleaning frames 18 are fixedly connected to the hollow tube 17 via connecting rods 19. One end of the connecting rod 19 is fixed to the hollow tube 17, and the other end is fixedly connected to a mounting head. The cleaning frames 18 can be fixedly connected to the connecting rod 19 via the mounting head. A rotating sleeve 20 is rotatably connected to the cleaning frame 18. Four scraper components 21 are fixedly arranged in a circumferential array on the rotating sleeve 20, one of which is in close contact with the inner wall of the treatment tube. When the hollow tube 17 rotates, it can drive the cleaning frames 18 and the scraper components 21 to move, thereby cleaning the inner wall of the treatment tank 10. Meanwhile, scraper 21 is prone to damage when it rubs against the inner wall of the treatment tank 10 for a long time. By rotating the rotating sleeve 20, the contact between different scraper 21 and the inner wall of the treatment tank 10 can be adjusted. The scraper 21 is made of rubber. To ensure contact between the scraper 21 and the inner wall of the treatment tank 10, a rotating shaft 27 is rotatably connected to the cleaning frame 18, passing through the rotating sleeve 20. A torsion spring 28 is connected between the rotating shaft 27 and the rotating sleeve 20. The two ends of the torsion spring 28 are fixed to the outer wall of the rotating shaft 27 and the inner wall of the rotating sleeve 20, respectively. When the rotating shaft 27 rotates, it can drive the rotating sleeve 20 to rotate through the torsion spring 28, thereby causing one scraper 21 to contact the inner wall of the treatment tank 10. At this time, the rotating shaft 27 continues to rotate, causing the torsion spring 28 to deform, creating a force that brings the scraper 21 closer to the inner wall of the treatment tank 10. At this time, the scraper 21 will deform to a certain extent and stick tightly to the inner wall of the treatment tank 10, ensuring the cleaning effect. To prevent the torsion spring 28 from continuing to deform when the scraper component 21 needs to be replaced, thus making it impossible to adjust the position of the scraper component 21, an abutment block 29 is fixedly connected to the outer wall of the rotating shaft 27, and a limiting block 30 for abutting against the abutment block 29 is fixedly connected to the inner wall of the rotating sleeve 20. When the rotating shaft 27 rotates a certain angle, the abutment block 29 contacts the limiting block 30, the rotating sleeve 20 rotates, thereby causing one scraper component 21 to disengage from the inner wall of the treatment tank 10, and causing the other scraper component 21 to abut against the inner wall of the treatment tank 10.

[0045] A limiting disk 31 that extends through the rotating sleeve 20 is fixedly connected to the upper end of the rotating shaft 27. The limiting disk 31 has multiple circumferentially distributed limiting grooves 32. The limiting grooves 32 extend radially along the limiting disk 31. The cleaning frame 18 is provided with a limiting head 33 for embedding into the limiting groove 32. The limiting head 33 slides on the cleaning frame 18 and can be inserted into the limiting groove 32 radially along the limiting disk 31.

[0046] Four aeration elements, arranged in a circular array and connected to the hollow tube 17, are fixedly connected to the aeration disc 23. Each aeration element includes two aeration plates 35 arranged side by side and a connecting part 34 that is fixedly connected to the two aeration plates 35. One end of the connecting part 34 is fixedly mounted on the hollow tube 17. The circularly arrayed aeration plates 35 form a fan-shaped structure, and air outlet holes 36 are opened on the aeration plates 35. When the hollow tube 17 rotates, it can drive the aeration plates 35 to rotate, thereby agitating the wastewater and simultaneously discharging carbon dioxide into the wastewater, ensuring that the carbon dioxide is evenly discharged into the wastewater and guaranteeing the aeration effect.

[0047] A sleeve 37 is fitted onto the lower end of the hollow tube 17, which slides axially with the hollow tube 17. An inclined scraper 38 arranged in a circumferential array is fixedly connected to the sleeve 37. The inclined scraper 38 is in contact with the upper conical surface of the shielding cone 11. A compression spring 39 connects the sleeve 37 and the hollow tube 17. The inclined scraper 38 cleans the upper conical surface of the shielding cone 11. The compression spring 39 ensures that the inclined scraper 38 remains in contact with the upper conical surface of the shielding cone 11.

[0048] Working process or usage method:

[0049] 1. Carbon dioxide gas is introduced into the treatment tank 10 by the air pump 24. At the same time, the drive motor 16 is started to output power, which drives the hollow tube 17 to rotate, causing the cleaning frame 18 and the scraper 21 to move. Magnesium and calcium ions in the wastewater will precipitate. The scraper prevents the precipitate from adhering to the inner wall of the treatment tank 10. When the scraper 21 is damaged due to long-term operation, the limit plate 31 is rotated. Under the action of the limit block 30 and the abutment block 29, the other scraper 21 is brought into contact with the inner wall of the treatment tank 10, and a certain clamping force is generated by the torsion spring 28 to ensure the cleaning effect.

[0050] 2. After aeration is completed, the piston end of the cylinder 14 is controlled to contract, causing the shielding cone 11 to abut against the lower inner wall of the treatment tank 10, thus shielding the sediment. The softened wastewater can then be discharged through the drain pipe 12. The drain pipe 13 discharges the sediment under the shielding cone 11, thereby achieving separation.

[0051] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A wastewater centralized treatment apparatus, characterized by: include: The processing tank (10) has a tapered structure at the lower end with a gradually decreasing cross-sectional area. A shielding cone (11) is installed inside the processing tank (10) and is a cone-shaped structure with a gradually increasing downward cross-sectional area; The drain pipe (12) is installed on the side wall of the treatment tank (10), with one end extending into the treatment tank (10) and located on the upper side of the shielding cone plate (11), and the other end connected to an external water pump. The drain pipe (13) is installed at the bottom of the treatment tank (10), with one end extending into the treatment tank (10) and located on the lower side of the shielding cone plate (11), and the other end connected to the external sewage pump. The cylinder (14) is vertically fixed at the lower end of the processing tank (10), and one end of the piston rod of the cylinder (14) is fixedly connected to the shielding cone plate (11). The treatment tank (10) is also equipped with a cleaning component for cleaning the inner wall of the treatment tank (10) and an aeration component for aeration. The cleaning component includes: A mounting platform (15) is fixed inside the treatment tank (10). A drive motor (16) is fixedly connected to the mounting platform (15). A hollow tube (17) is rotatably connected to the mounting platform (15). The hollow tube (17) is rotated by the drive motor (16). An aeration disc (23) for introducing aeration gas is fixedly connected to the hollow tube (17). A cleaning frame (18) is fixedly arranged in a circular array on the hollow tube (17). The cleaning frame (18) and the hollow tube (17) are fixedly connected by a connecting rod (19). A rotating sleeve (20) is rotatably connected to the cleaning frame (18). Scraper pieces (21) are fixedly arranged in a circular array on the rotating sleeve (20). One of the scraper pieces (21) is in close contact with the inner wall of the treatment tube.

2. The wastewater centralized treatment device according to claim 1, characterized in that: The cleaning frame (18) is rotatably connected to a rotating shaft (27) that passes through a rotating sleeve (20). A torsion spring (28) is connected between the rotating shaft (27) and the rotating sleeve (20). The two ends of the torsion spring (28) are respectively fixed to the outer side wall of the rotating shaft (27) and the inner side wall of the rotating sleeve (20).

3. The wastewater centralized treatment device according to claim 2, characterized in that: An abutment block (29) is fixedly connected to the outer side wall of the rotating shaft (27), and a limiting block (30) for abutting against the abutment block (29) is fixedly connected to the inner side wall of the rotating sleeve (20).

4. The wastewater centralized treatment device according to claim 3, characterized in that: The upper end of the rotating shaft (27) is fixedly connected to a limiting disk (31) that passes through the rotating sleeve (20). The limiting disk (31) has multiple limiting grooves (32) arranged in a circular array. The limiting grooves (32) extend radially along the limiting disk (31). The cleaning frame (18) is provided with a limiting head (33) for embedding into the limiting groove (32).

5. A centralized wastewater treatment device according to claim 4, characterized in that: Multiple aeration elements that are arranged in a circular array and communicate with the hollow tube (17) are fixedly connected to the aeration disc (23). The aeration elements include two aeration plates (35) arranged side by side and a connecting part (34) that is fixedly connected to the two aeration plates (35). One end of the connecting part (34) is fixedly set on the hollow tube (17). The aeration plates (35) arranged in a circular array form a fan blade structure, and air outlet holes (36) are opened on the aeration plates (35).

6. The wastewater centralized treatment device according to claim 1, characterized in that: An air pump (24) for introducing aeration gas into the hollow tube (17) is fixedly connected to the mounting platform (15). An air baffle (25) is also fixedly connected to the mounting platform (15). The hollow tube (17) passes through the air baffle (25). The air baffle (25) is connected to the air outlet of the air pump (24) through an air pipe. The hollow tube (17) has circumferentially arrayed air inlets (26) on its side wall. The air inlets (26) are located inside the air baffle (25).

7. A centralized wastewater treatment device according to claim 1, characterized in that: A sleeve (37) is fitted at the lower end of the hollow tube (17) and slides axially with the hollow tube (17). An inclined scraper (38) with a circumferential array is fixedly connected to the sleeve (37). The inclined scraper (38) is in contact with the upper conical surface of the shielding cone (11). A compression spring (39) is connected between the sleeve (37) and the hollow tube (17).

8. The wastewater centralized treatment device according to claim 1, characterized in that: The scraper component (21) is made of rubber.

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