Backflow type sewage treatment oxidation ditch device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a backflow type sewage treatment oxidation ditch device which comprises an oxidation ditch main body, two shaft seats are fixedly mounted on the inner side wall of the oxidation ditch main body, hollow rotating shafts are rotatably mounted on the two shaft seats, and the two hollow rotating shafts are fixedly communicated with aeration pipes. The aeration device has the following advantages and effects that the two hollow rotating shafts are controlled to respectively drive the plurality of aeration pipes mounted on the hollow rotating shafts to rotate, so that the positions of the plurality of aeration pipes can be changed, the diffusion range of oxygen in sewage can be enlarged, the aeration effect is improved, sludge can be prevented from covering the aeration pipes to block aeration holes, and the aeration effect is improved. And moreover, by utilizing the boosting mechanism, the effect that the sewage circularly flows in the oxidation ditch main body can be improved, and the aeration effect on the sewage can be further improved.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and particularly relates to a reflux type sewage treatment oxidation ditch device. Background Art

[0002] An oxidation ditch is an activated sludge treatment system. Its aeration tank is in a closed ditch shape, so its hydraulic flow pattern is different from that of the traditional activated sludge method. It is a circular flow aeration ditch with the head and tail connected. Because the sewage and activated sludge continuously circulate in the aeration channel, it is also called a circulating aeration tank. The entire process of oxidation ditch sewage treatment, such as influent, aeration, sedimentation, sludge stabilization, and effluent, is all completed in the oxidation ditch. Usually, extended aeration and continuous influent and effluent are adopted. The generated microbial sludge is stabilized while the sewage is aerated and purified. There is no need to set up a primary sedimentation tank and a sludge digestion tank, and the treatment facilities are greatly simplified. After retrieval, the patent document with the authorization announcement number CN210214924U discloses an oxidation ditch sewage treatment device, including an oxidation ditch, a water deflecting roller, and a sludge removal mechanism. The oxidation ditch is set as an oblong shape, and a guide rail is arranged at the upper end of the outer side wall of the oxidation ditch. A water deflecting roller is arranged in the groove at the middle part on one side of the oxidation ditch, and a sludge removal mechanism is arranged on one side of the water deflecting roller. The guide rail arranged at the upper end of the outer side wall of the oxidation ditch provides a walking guide for the walking mechanism, so that the walking mechanism drives the sludge suction mechanism to move along the groove of the oxidation ditch, realizing more comprehensive sludge cleaning. The sludge is continuously pushed into the sludge suction hood and sent into the sludge suction box by the sludge deflecting rod arranged at the port of the sludge suction hood, and the sludge in the sludge suction box is pumped up by the sludge pump and discharged outside the oxidation ditch, having a good sludge cleaning effect, and there is no need for manual sludge cleaning, which saves time and effort, reduces the space occupied by sludge in the oxidation ditch, and improves the sewage treatment capacity.

[0003] The above-mentioned solution is found to still have at least the following deficiencies in actual use: The air injection pipe is arranged at the bottom position in the oxidation ditch for aeration. Since there is sludge at the bottom of the oxidation ditch, when the sludge is not cleaned in time, it is easy to cause the sludge to cover the air injection pipe, resulting in the air not being able to be discharged smoothly and making full and effective contact with the sewage, thereby leading to poor aeration effect.

[0004] Therefore, we propose a reflux type sewage treatment oxidation ditch device to solve the above problems. Content of the Utility Model

[0005] The purpose of the present application is to provide a reflux type sewage treatment oxidation ditch device, which can drive a plurality of aeration pipes installed thereon to rotate by controlling two hollow rotating shafts respectively, so that the positions of the plurality of aeration pipes can be changed, the diffusion range of oxygen in the sewage can be increased, the aeration effect can be improved, and the sludge can be prevented from covering the aeration pipes and blocking the aeration holes, ensuring that all the oxygen is ejected into the sewage for aeration comprehensively. Moreover, by using the boosting mechanism, not only can the effect of the sewage circulating and flowing in the oxidation ditch main body be increased, but also the aeration effect on the sewage can be further improved.

[0006] The above technical purpose of the present application is achieved through the following technical solutions: A reflux type sewage treatment oxidation ditch device includes an oxidation ditch main body. Two shaft seats are fixedly installed on the inner side wall of the oxidation ditch main body. Two hollow rotating shafts are rotatably installed on the two shaft seats. A plurality of aeration pipes are fixedly communicated with the two hollow rotating shafts. A plurality of aeration holes are arrayed on the aeration pipes. The front ends of the two hollow rotating shafts both extend outside the oxidation ditch main body. Two oxygen inlet pipes 1 are arranged on the front side of the oxidation ditch main body. One ends of the two oxygen inlet pipes 1 respectively extend into the corresponding hollow rotating shafts. A driving mechanism is arranged on the front side of the oxidation ditch main body, and the driving mechanism is used to control the two hollow rotating shafts to rotate simultaneously.

[0007] By adopting the above technical solutions, the oxidation ditch main body is used for sewage treatment. The two oxygen inlet pipes 1 can respectively convey oxygen into the corresponding hollow rotating shafts, and then the oxygen can pass through the aeration pipes and finally be discharged into the sewage from a plurality of aeration holes, thereby realizing the function of aerating the sewage to increase the oxygen content in the sewage.

[0008] The further setting of the present application is that the number of aeration pipes on the same hollow rotating shaft is set to be multiple, and the multiple aeration pipes are distributed in a circular array.

[0009] By adopting the above technical solutions, the diffusion range of oxygen in the sewage can be increased, and the aeration effect can be improved.

[0010] The further setting of the present application is that a sealing ring is fixedly installed on the inner wall of the hollow rotating shaft, and the oxygen inlet pipe 1 is rotationally and sealingly matched with the hollow rotating shaft through the sealing ring.

[0011] By adopting the above technical solutions, oxygen can be prevented from flowing out from the front end of the hollow rotating shaft.

[0012] The further setting of the present application is that the driving mechanism includes a belt transmission part, a motor, a main gear and a sub-gear. The belt transmission part is arranged at the front ends of the two hollow rotating shafts. The motor is located on the front side of the oxidation ditch main body. The main gear is fixedly installed at the output shaft end of the motor. The sub-gear is fixedly sleeved at the front end of one of the hollow rotating shafts, and the main gear is meshed with the sub-gear.

[0013] By adopting the above technical solution, the rotation of the main gear can be controlled by using the motor, and the rotation of one of the hollow rotating shafts can be controlled by using the meshing transmission between the main gear and the auxiliary gear.

[0014] A further setting of the present application is that: the belt transmission member includes a first pulley, a second pulley and a belt. The first pulley and the second pulley are respectively fixedly sleeved on the front ends of the two hollow rotating shafts, and the belt is wound around the first pulley and the second pulley.

[0015] By adopting the above technical solution, the rotation of the two hollow rotating shafts can be controlled by using the transmission of the first pulley, the second pulley and the belt, and further the positions of a plurality of aeration pipes can be changed, preventing sludge from covering the aeration pipes and blocking the aeration holes, and ensuring that oxygen is all and comprehensively ejected into the sewage for aeration.

[0016] A further setting of the present application is that: a bearing seat is fixedly installed on the front outer wall of the oxidation ditch main body, and the motor is fixedly installed on the bearing seat.

[0017] By adopting the above technical solution, it is used to stably support the motor.

[0018] A further setting of the present application is that: a boosting mechanism is arranged in the oxidation ditch main body, and the boosting mechanism is used to push the sewage to circulate in the oxidation ditch main body.

[0019] By adopting the above technical solution, the effect of the sewage circulating in the oxidation ditch main body can be increased.

[0020] A further setting of the present application is that: the boosting mechanism includes a hollow flow pusher arranged on the right side of the aeration pipe. A plurality of air outlet holes are arrayed on the right side wall of the hollow flow pusher. An oxygen inlet pipe II is fixedly installed on the front side wall of the oxidation ditch main body. One end of the oxygen inlet pipe II penetrates through the front side wall of the oxidation ditch main body and is fixedly communicated with the hollow flow pusher.

[0021] By adopting the above technical solution, the oxygen inlet pipe II is used to transport oxygen into the hollow flow pusher, so that air is ejected from a plurality of air outlet holes. By using the flow force generated when the air is discharged from a plurality of air outlet holes, the sewage can be pushed to flow forward along the direction of the air flow, and the sewage can be further aerated and oxygenated, further improving the aeration effect on the sewage.

[0022] A further setting of the present application is that: the number of the hollow flow pushers is set to be multiple, and the multiple hollow flow pushers are evenly distributed at equal intervals. Adjacent two hollow flow pushers are connected and communicated through a ventilation pipe.

[0023] By adopting the above technical solution, the sewage can be more comprehensively and effectively pushed to flow forward along the direction of the air flow.

[0024] A further setting of this application is that a support base is fixedly installed at the bottom of the hollow flow pusher cover, and the support base is fixedly installed on the inner bottom wall of the oxidation ditch main body.

[0025] By adopting the above technical solution, it is used to stably support the hollow flow pusher cover.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] 1. By using a drive mechanism composed of a belt drive member, a motor, a main gear, and a sub-gear, and using a belt drive member composed of a first pulley, a second pulley, and a belt, this application can control two hollow rotating shafts to drive a plurality of aeration pipes installed thereon to rotate respectively, which can change the positions of the plurality of aeration pipes. During the aeration process of sewage, it can increase the diffusion range of oxygen in the sewage, improve the aeration effect, and prevent sludge from covering the aeration pipes and blocking the aeration holes, ensuring that all oxygen is sprayed out into the sewage for aeration in a comprehensive manner.

[0028] 2. By using the boosting mechanism, this application can not only increase the effect of the circulating flow of sewage in the oxidation ditch main body, but also further improve the aeration effect on sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0030] Figure 1 It is a three-dimensional structural schematic diagram of this embodiment.

[0031] Figure 2 It is a front view cross-sectional structural schematic diagram of this embodiment.

[0032] Figure 3 It is Figure 2 An enlarged structural schematic diagram of part A in

[0033] Figure 4 It is a three-dimensional structural schematic diagram of the boosting mechanism.

[0034] In the figure, 1. Oxidation ditch main body; 2. Axle seat; 3. Hollow rotating shaft; 4. Aeration pipe; 5. Aeration hole; 6. Oxygen inlet pipe 1; 7. Sealing ring; 8. First pulley; 9. Second pulley; 10. Belt; 11. Motor; 12. Main gear; 13. Sub-gear; 14. Bearing seat; 15. Hollow flow pusher cover; 16. Vent pipe; 17. Air outlet hole; 18. Oxygen inlet pipe 2; 19. Support base. Specific Embodiments

[0035] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0036] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present application provides a reflux type sewage treatment oxidation ditch device, including an oxidation ditch main body 1. Two shaft seats 2 are fixedly installed on the inner side wall of the oxidation ditch main body 1. Hollow rotating shafts 3 are rotatably installed on both of the two shaft seats 2. Aeration pipes 4 are fixedly communicated with both of the two hollow rotating shafts 3. A plurality of aeration holes 5 are arrayed on the aeration pipes 4. The number of aeration pipes 4 on the same hollow rotating shaft 3 is set to be multiple, and the multiple aeration pipes 4 are distributed in a circular array. The front ends of both of the two hollow rotating shafts 3 extend outside the oxidation ditch main body 1. Two oxygen inlet pipes 1 are arranged on the front side of the oxidation ditch main body 1. One ends of the two oxygen inlet pipes 1 extend into the corresponding hollow rotating shafts 3 respectively. A driving mechanism is arranged on the front side of the oxidation ditch main body 1. The driving mechanism is used to control the simultaneous rotation of the two hollow rotating shafts 3. The driving mechanism includes a belt transmission member, a motor 11, a main gear 12 and a sub-gear 13. The belt transmission member is arranged at the front ends of the two hollow rotating shafts 3. The motor 11 is located on the front side of the oxidation ditch main body 1. The main gear 12 is fixedly installed at the output shaft end of the motor 11. The sub-gear 13 is fixedly sleeved on the front end of one of the hollow rotating shafts 3. The main gear 12 meshes with the sub-gear 13.

[0037] In this embodiment, the belt transmission member includes a first belt pulley 8, a second belt pulley 9 and a belt 10. The first belt pulley 8 and the second belt pulley 9 are respectively fixedly sleeved on the front ends of the two hollow rotating shafts 3. The belt 10 is wound around the first belt pulley 8 and the second belt pulley 9.

[0038] In this embodiment, the boosting mechanism includes a hollow flow pusher cover 15 arranged on the right side of the aeration pipe 4. A plurality of air outlet holes 17 are arrayed on the right side wall of the hollow flow pusher cover 15. An oxygen inlet pipe 2 is fixedly installed on the front side wall of the oxidation ditch main body 1. One end of the oxygen inlet pipe 2 penetrates through the front side wall of the oxidation ditch main body 1 and is fixedly communicated with the hollow flow pusher cover 15. The number of the hollow flow pusher covers 15 is set to be multiple, and the multiple hollow flow pusher covers 15 are distributed at equal intervals. Adjacent two hollow flow pusher covers 15 are communicated with each other through a ventilation pipe 16.

[0039] In this embodiment, it should be noted that both the first oxygen inlet pipe 6 and the second oxygen inlet pipe 18 are fixedly connected to the exhaust port of an external booster pump. Thus, by controlling the operation of the booster pump, pressurized air can be transported into the first oxygen inlet pipe 6 and the second oxygen inlet pipe 18 for flow.

[0040] In this embodiment, a sealing ring 7 is fixedly installed on the inner wall of the hollow rotating shaft 3. The first oxygen inlet pipe 6 is rotationally and sealingly fitted with the hollow rotating shaft 3 through the sealing ring 7.

[0041] In this embodiment, a bearing seat 14 is fixedly installed on the front outer wall of the oxidation ditch main body 1. The motor 11 is fixedly installed on the bearing seat 14.

[0042] In this embodiment, a boosting mechanism is arranged in the oxidation ditch main body 1. The boosting mechanism is used to push the sewage to circulate in the oxidation ditch main body 1.

[0043] In this embodiment, a support seat 19 is fixedly installed at the bottom of the hollow flow pusher cover 15. The support seat 19 is fixedly installed on the bottom inner wall of the oxidation ditch main body 1.

[0044] With the above structure, when the reflux type sewage treatment oxidation ditch device provided by this application is in use, by controlling the two hollow rotating shafts 3 to drive the multiple aeration pipes 4 installed thereon to rotate respectively, the positions of the multiple aeration pipes 4 can be changed, the diffusion range of oxygen in the sewage can be increased, the aeration effect can be improved, and the sludge can be prevented from covering the aeration pipes 4 to block the air holes 5, ensuring that all the oxygen is sprayed out into the sewage for aeration comprehensively. Moreover, by using the boosting mechanism, not only the effect of sewage circulation in the oxidation ditch main body 1 can be increased, but also the aeration effect on the sewage can be further improved.

[0045] During specific operation, when aeration of sewage is required, start the external booster air pump and control the operation of the motor 11. In the state where the booster air pump is operating, the pressurized air can enter the two oxygen inlet pipes I 6 and the oxygen inlet pipe II 18 respectively in three paths, so that the pressurized air is discharged from a plurality of aeration holes 5 and a plurality of air outlet holes 17. When the motor 11 drives the main gear 12 to rotate, by using the meshing transmission of the main gear 12 and the sub-gear 13, and cooperating with the transmission of the first pulley 8, the second pulley 9 and the belt 10, the two hollow rotating shafts 3 can be controlled to rotate simultaneously, and then the positions of a plurality of aeration pipes 4 can be changed, which can increase the diffusion range of oxygen in the sewage, so that the oxygen discharged from a plurality of aeration holes 5 can fully contact with the sewage, improve the aeration effect, and prevent sludge from covering the aeration pipes 4 and blocking the aeration holes 5, ensuring that all the oxygen is fully ejected into the sewage for aeration. By using the flow force generated by the pressurized air discharged from a plurality of air outlet holes 17, the sewage can be effectively pushed to flow forward along the direction of the air flow, which can achieve the effect of increasing the circulating flow of the sewage in the oxidation ditch main body 1, and can further increase the oxygen content in the sewage and further improve the aeration effect of the sewage. After the aeration is completed, stop the operation of the booster air pump and the motor 11.

Claims

1. A reflux type sewage treatment oxidation ditch device, characterized in that, It includes an oxidation ditch main body (1). Two shaft seats (2) are fixedly installed on the inner side wall of the oxidation ditch main body (1). A hollow rotating shaft (3) is rotatably installed on each of the two shaft seats (2). An aeration pipe (4) is fixedly communicated with each of the two hollow rotating shafts (3). A plurality of aeration holes (5) are arrayed on the aeration pipe (4). The front ends of the two hollow rotating shafts (3) extend outside the oxidation ditch main body (1). Two oxygen inlet pipes I (6) are arranged on the front side of the oxidation ditch main body (1). One ends of the two oxygen inlet pipes I (6) respectively extend into the corresponding hollow rotating shafts (3). A driving mechanism is arranged on the front side of the oxidation ditch main body (1), and the driving mechanism is used to control the simultaneous rotation of the two hollow rotating shafts (3).

2. The oxidation ditch device for reflux type sewage treatment according to claim 1, characterized in that: The number of aeration pipes (4) on the same hollow rotating shaft (3) is set to be multiple, and the multiple aeration pipes (4) are distributed in a circular array.

3. A reflux type sewage treatment oxidation ditch device according to claim 1, characterized in that: A sealing ring (7) is fixedly installed on the inner wall of the hollow rotating shaft (3), and the oxygen inlet pipe I (6) is rotationally and sealingly matched with the hollow rotating shaft (3) through the sealing ring (7).

4. A reflux type sewage treatment oxidation ditch device according to claim 1, characterized in that: The driving mechanism includes a belt transmission member, a motor (11), a main gear (12) and a sub-gear (13). The belt transmission member is arranged at the front ends of the two hollow rotating shafts (3). The motor (11) is located on the front side of the oxidation ditch main body (1). The main gear (12) is fixedly installed at the output shaft end of the motor (11). The sub-gear (13) is fixedly sleeved on the front end of one of the hollow rotating shafts (3), and the main gear (12) meshes with the sub-gear (13).

5. A reflux type sewage treatment oxidation ditch device according to claim 4, characterized in that: The belt transmission member includes a first belt pulley (8), a second belt pulley (9) and a belt (10). The first belt pulley (8) and the second belt pulley (9) are respectively fixedly sleeved on the front ends of the two hollow rotating shafts (3), and the belt (10) is wound around the first belt pulley (8) and the second belt pulley (9).

6. The oxidation ditch device for reflux type sewage treatment according to claim 4, characterized in that: A bearing seat (14) is fixedly installed on the front outer wall of the oxidation ditch main body (1), and the motor (11) is fixedly installed on the bearing seat (14).

7. A reflux type sewage treatment oxidation ditch device according to claim 1, characterized in that: A boosting mechanism is arranged in the oxidation ditch main body (1), and the boosting mechanism is used to push the sewage to circulate in the oxidation ditch main body (1).

8. The oxidation ditch device for reflux type sewage treatment according to claim 7, characterized in that: The boosting mechanism includes a hollow flow-pushing cover (15) arranged on the right side of the aeration pipe (4). A plurality of air outlet holes (17) are arrayed on the right side wall of the hollow flow-pushing cover (15). An oxygen inlet pipe II (18) is fixedly installed on the front side wall of the oxidation ditch main body (1). One end of the oxygen inlet pipe II (18) penetrates through the front side wall of the oxidation ditch main body (1) and is fixedly communicated with the hollow flow-pushing cover (15).

9. The oxidation ditch device for reflux type sewage treatment according to claim 8, characterized in that: The number of the hollow flow-pushing covers (15) is set to be multiple, and the multiple hollow flow-pushing covers (15) are distributed at equal intervals. Adjacent two hollow flow-pushing covers (15) are communicated through a ventilation pipe (16).

10. A reflux type sewage treatment oxidation ditch device according to claim 9, characterized in that: A support base (19) is fixedly installed at the bottom of the hollow plug-flow hood (15), and the support base (19) is fixedly installed on the bottom inner wall of the oxidation ditch main body (1).

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