Rotary sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a rotary sewage treatment device which comprises a contact reaction tank, a turntable and a rotating shaft, a plurality of stainless steel framework fillers are arranged in the turntable, and an air cover is fixedly arranged on the surface of the turntable and positioned on one side of the turntable; steel structure supporting devices are arranged on the two sides of the contact reaction tank, when equipment is installed, firstly, foundation bolts are buried into the ground, a bottom plate at the bottom of an H-shaped steel support is placed on a base plate, fixing bolts penetrate through straight holes and then are screwed and fixed through nuts, then a plurality of conical drill rods are inserted into the ground, and then the equipment is installed. After the installation of the whole steel structure supporting device and the contact reaction tank is completed, the two ends of the rotating shaft are fixed with the shaft sleeves to reduce the friction force when the rotating shaft rotates, the H-shaped steel support is similar to a frame and surrounds the contact reaction tank, and the support is stably fixed with the ground, so that the weight of the device can be better shared; and meanwhile, the contact reaction tank can be prevented from being deformed due to overlarge pressure.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a rotary wastewater treatment device. Background Technology

[0002] The pneumatic rotating biological membrane process is a type of biological wastewater treatment technology using biofilm. This treatment method allows bacteria, fungi, and microorganisms such as protozoa to grow and reproduce on a pneumatic rotating biological membrane carrier, forming a membrane-like biological sludge—a biofilm. After primary treatment in a sedimentation tank, the wastewater comes into contact with the biofilm, and the microorganisms on the biofilm absorb the organic pollutants in the wastewater as nutrients, thus purifying the wastewater.

[0003] The applicant discovered through a search that a Chinese patent discloses "A Rotary Wastewater Treatment Device," with publication (announcement) number "CN207108784U." This patent mainly includes a frame on which a tank is mounted. This device is not only compact in structure but also convenient for wastewater treatment and for pressing sludge generated during the wastewater treatment process. However, the existing wastewater treatment technology is difficult to adapt to different flow rates and water quality changes, which limits the wastewater purification process. In traditional pneumatic biological rotating membrane wastewater treatment, the reaction tank uses only a simple support structure. When the reaction tank is filled with wastewater and the rotating parts are heavy, the support structure is prone to deformation due to the excessive pressure exerted on the reaction tank. Therefore, we propose a rotary wastewater treatment device. Utility Model Content

[0004] The purpose of this invention is to provide a rotating sewage treatment device to solve the problem that the sewage treatment in the prior art is difficult to adapt to different flow rates and water quality changes, which limits the sewage purification. In the traditional pneumatic biological rotating membrane sewage treatment, the reaction tank only uses a simple support structure. When the reaction tank is full of sewage and the rotating parts are heavy, the support structure is prone to deformation due to the excessive pressure on the reaction tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary sewage treatment device, including a contact reaction tank, a turntable, and a rotating shaft. The turntable is equipped with multiple stainless steel skeleton packing materials inside. An air hood is fixedly installed on the surface of the turntable and on one side of the turntable. Steel structure support devices are provided on both sides of the contact reaction tank. The steel structure support devices include H-shaped steel brackets. A pad is connected to the bottom of the H-shaped steel brackets through a base plate. Fixing bolts and anchor bolts are fixedly installed on the upper and lower surfaces of the pad, respectively. Tapered drill rods are threaded to the four corners of the H-shaped steel brackets. A bushing is fixedly installed at the upper internal end of the H-shaped steel brackets.

[0006] As a preferred embodiment, the contact reaction tank is fixedly installed inside the H-shaped steel bracket, both ends of the rotating shaft are fixedly installed inside the bushing, the turntable is fixedly installed on the circumferential surface of the rotating shaft, the two sides of the contact reaction tank are respectively provided with water inlet and water outlet, the air hood is fixedly installed inside the air inlet pipe, and the surface of the turntable and the stainless steel skeleton packing are provided with a stabilizing device.

[0007] As a preferred embodiment, the base plate is provided in two sets and is fixedly installed on the bottom of both sides of the H-shaped steel bracket, and the pad is provided in four sets and is fixedly installed on the bottom of the front and rear sides of the two sets of base plates, and the surface of the base plate is provided with straight holes that are compatible with the fixing bolts.

[0008] As a preferred embodiment, a nut is threaded onto the circumferential surface of the fixing bolt above the base plate, and multiple reinforcing ribs are fixedly installed inside the H-shaped steel bracket.

[0009] As a preferred embodiment, the stabilizing device includes multiple mounting slots evenly spaced on the surface of the turntable, the stainless steel skeleton packing is disposed inside the mounting slots, multiple retaining strips are fixedly installed on the circumferential surface of the stainless steel skeleton packing, and multiple retaining grooves adapted to the retaining strips are provided on the outer circumferential wall of the mounting slot.

[0010] As a preferred embodiment, the surface of the turntable is provided with a threaded hole on the outside of the mounting groove, and a locking bolt is threaded into the threaded hole. A pressure plate is rotatably connected to the circumferential surface of the locking bolt, and the end of the pressure plate away from the locking bolt is in contact with the surface of the stainless steel skeleton filler.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By setting up a steel structure support device, during equipment installation, the anchor bolts are first buried in the ground, the bottom plate of the H-shaped steel bracket is placed on the pad, and the fixing bolts pass through the straight holes. Then, the nuts are tightened to fix it. Afterwards, multiple conical drill rods are inserted into the ground with the help of tools to complete the installation of the entire steel structure support device and the contact reaction tank. After that, the two ends of the rotating shaft are fixed to the bushing to reduce the friction when the rotating shaft rotates. The H-shaped steel bracket is similar to a frame that surrounds the contact reaction tank. The support is firmly fixed to the ground. For large pneumatic biological rotating membrane devices, it can better distribute the weight of the device and prevent the contact reaction tank from deforming due to excessive pressure.

[0013] 2. By setting up a stabilizing device, when it is necessary to install the stainless steel skeleton packing, first place it in the installation groove. During this process, the retaining strip is inserted into the retaining groove to ensure that the stainless steel skeleton packing will not move laterally in the installation groove. Then, rotate the pressure plate so that one end of the pressure plate is tightly attached to the surface of the stainless steel skeleton packing. Then, rotate the locking bolt and move it downward in the threaded hole until the nut on the locking bolt completely locks the pressure plate. When the turntable rotates, the stainless steel skeleton packing will not be easily popped out of the installation groove due to centrifugal force or other external forces. At the same time, it is also convenient to disassemble and replace it. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0016] Figure 3 This is a front cross-sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the turntable and shaft structure of this utility model;

[0019] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;

[0020] Figure 7 This is a schematic diagram of the stabilizing device structure of this utility model;

[0021] Figure 8 This is a schematic diagram of the stabilizing device of this utility model.

[0022] In the diagram: 1. Contact reaction tank; 2. Turntable; 3. Rotating shaft; 4. Steel structure support device; 5. Stabilizing device; 6. Stainless steel skeleton packing; 7. Air hood; 8. Air inlet pipe; 401. H-beam bracket; 402. Reinforcing rib; 403. Base plate; 404. Bushing; 405. Pad; 406. Anchor bolt; 407. Fixing bolt; 408. Nut; 409. Tapered drill rod; 501. Mounting groove; 502. Slot; 503. Clip; 504. Locking bolt; 505. Pressure plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see the appendix Figure 1 - Appendix Figure 4 and appendix Figure 7 - Appendix Figure 8 A rotary wastewater treatment device includes a contact reaction tank 1, a turntable 2, and a rotating shaft 3. The turntable 2 has multiple stainless steel skeleton packing materials 6 inside. An air hood 7 is fixedly installed on one side of the turntable 2. Steel structure support devices 4 are provided on both sides of the contact reaction tank 1. The steel structure support devices 4 include H-shaped steel brackets 401. A pad 405 is connected to the bottom of the H-shaped steel bracket 401 via a base plate 403. Fixing bolts 407 and anchor bolts 406 are fixedly installed on the upper and lower surfaces of the pad 405, respectively. Tapered drill rods 409 are threaded to the four corners of the H-shaped steel bracket 401. A bushing 404 is fixedly installed at the upper end of the interior of the H-shaped steel bracket 401. The contact reaction tank 1 is fixedly installed inside the H-shaped steel bracket 401. The rotating shaft 3... Both ends are fixedly installed inside the bushing 404. The turntable 2 is fixedly installed on the circumferential surface of the rotating shaft 3. The two sides of the contact reaction tank 1 are respectively provided with water inlet and water outlet. The air hood 7 is fixedly installed inside the air inlet pipe 8. The surface of the turntable 2 and the stainless steel skeleton packing 6 are provided with a stabilizing device 5. The base plate 403 is provided with two sets and is fixedly installed on the bottom of both sides of the H-shaped steel bracket 401. The pad plate 405 is provided with four sets and is fixedly installed on the bottom of the front and rear sides of the two sets of base plates 403. The surface of the base plate 403 is provided with straight holes that are compatible with the fixing bolts 407. The circumferential surface of the fixing bolts 407 and the top of the base plate 403 are threaded with nuts 408. The H-shaped steel bracket 401 is fixedly installed inside the H-shaped steel bracket 401. Multiple reinforcing ribs 402 are fixedly installed inside the H-shaped steel bracket 401.

[0026] The stainless steel skeleton packing 6 serves as the carrier for biofilm attachment and growth. Its honeycomb structure enhances mass transfer due to the rotation of the biofilm, significantly improving wastewater treatment efficiency. The microbial community on the biofilm exhibits diversity and stability, effectively responding to fluctuations in wastewater quality and quantity. The air hood 7 receives compressed air released from the air inlet pipe 8, using air power to drive the rotation of the air hood 7, its connected shaft 3, and the stainless steel skeleton packing 6. When the rotating disk 2 leaves the wastewater, a thin layer of water forming on its surface absorbs dissolved oxygen from the air. Sufficient oxygen is provided to the microorganisms on the biofilm to ensure their normal metabolism and decomposition of pollutants. Air is delivered into the air hood 7, where a certain pressure difference or jet airflow is generated. The force of these airflows acts on specific structural parts of the air hood 7, thereby generating torque. Since the rotating shaft 3 is connected to the air hood 7, the torque is transmitted to the rotating shaft 3, causing it to start rotating. The stainless steel skeleton packing 6 is installed on the turntable 2, which is fixedly connected to the rotating shaft 3. Therefore, the rotation of the rotating shaft 2 will drive the turntable 3 and the stainless steel skeleton packing 6 to rotate together.

[0027] Specifically, during equipment installation, the anchor bolts 406 are first buried in the ground. The bottom plate 403 of the H-shaped steel bracket 401 is placed on the pad 405, and the fixing bolts 407 pass through the straight holes. Then, the nuts 408 are tightened to fix it. Subsequently, multiple conical drill rods 409 are inserted into the ground with the help of tools to complete the installation of the entire steel structure support device 4 and the contact reaction tank 1. After that, the two ends of the rotating shaft 3 are fixed to the bushings 404 to reduce the friction when the rotating shaft 3 rotates. The H-shaped steel bracket 401 is similar to a frame, which surrounds the contact reaction tank 1. The support is firmly fixed to the ground. For large pneumatic biological rotating membrane devices, it can better distribute the weight of the device and prevent the contact reaction tank 1 from deforming due to excessive pressure.

[0028] Example 2:

[0029] Please see the appendix Figure 1 - Appendix Figure 6 Furthermore, based on Embodiment 1, the stabilizing device 5 includes multiple mounting grooves 501 evenly spaced on the surface of the turntable 2. A stainless steel skeleton filler 6 is disposed inside the mounting groove 501. Multiple retaining strips 503 are fixedly installed on the circumferential surface of the stainless steel skeleton filler 6. Multiple retaining grooves 502 adapted to the retaining strips 503 are opened on the outer circumferential wall of the mounting groove 501. A threaded hole is opened on the surface of the turntable 2 outside the mounting groove 501, and a locking bolt 504 is threadedly connected in the threaded hole. A pressure plate 505 is rotatably connected to the circumferential surface of the locking bolt 504. The end of the pressure plate 505 away from the locking bolt 504 is in contact with the surface of the stainless steel skeleton filler 6.

[0030] The growth status of the biofilm on the stainless steel skeleton packing 6 also affects the replacement frequency. During normal operation, if the biofilm grows excessively, it may cause the stainless steel skeleton packing 6 to become clogged, affecting the contact effect between sewage and biofilm and the air permeability of the stainless steel skeleton packing 6. In addition, the biofilm may sometimes fall off abnormally, which may be caused by changes in water quality, hydraulic impact, or imbalance of microbial community. If a large amount of biofilm falls off, the performance of the stainless steel skeleton packing 6 will also be affected, and it may be necessary to clean or replace the stainless steel skeleton packing 6. The function of the stabilizing device 5 is to ensure stable installation while also facilitating disassembly and replacement.

[0031] Specifically, when installing the stainless steel skeleton packing 6, it is first placed in the installation groove 501. During this process, the retaining strip 503 is inserted into the retaining groove 502 to ensure that the stainless steel skeleton packing 6 will not move laterally in the installation groove 501. Then, the pressure plate 505 is rotated so that one end of the pressure plate 505 is tightly attached to the surface of the stainless steel skeleton packing 6. Then, the locking bolt 504 is rotated and moved downward in the threaded hole until the nut on the locking bolt 504 completely locks the pressure plate 505. When the turntable 2 rotates, the stainless steel skeleton packing 6 will not easily pop out of the installation groove 501 due to centrifugal force or other external forces. At the same time, it is also convenient to disassemble and replace it.

[0032] Working principle of this utility model: This utility model is a rotary sewage treatment device. First, the equipment is installed in a suitable location, and the anchor bolts 406 are buried in the ground. The bottom plate 403 of the H-shaped steel bracket 401 is placed on the pad 405, and the fixing bolts 407 pass through the straight holes. Then, the nuts 408 are tightened to fix it. Then, multiple conical drill rods 409 are inserted into the ground with the help of tools to complete the installation of the entire steel structure support device 4 and the contact reaction tank 1. After that, both ends of the rotating shaft 3 are fixed to the bushings 404 to reduce the impact of the rotating shaft 3 during rotation. The friction force is then applied, and the stainless steel skeleton packing 6 is placed in the installation groove 501. The retaining strip 503 is inserted into the retaining groove 502 to ensure that the stainless steel skeleton packing 6 will not move laterally in the installation groove 501. Then, the pressure plate 505 is rotated so that one end of the pressure plate 505 is tightly attached to the surface of the stainless steel skeleton packing 6. Then, the locking bolt 504 is rotated until the nut on the locking bolt 504 completely locks the pressure plate 505. Subsequently, the sewage is introduced into the contact reaction tank 1 and stays in the contact reaction tank 1 for a certain period of time to ensure that the rotating disc 2 The biofilm on the wastewater has sufficient time to contact and process pollutants. Air is supplied to the air hood 7, where a pressure difference or jet stream is generated, causing the rotating shaft 3 to drive the rotating disc 2 and the stainless steel skeleton packing 6 to rotate together. When the rotating disc 2 leaves the wastewater, the thin layer of water formed on its surface absorbs dissolved oxygen from the air, providing sufficient oxygen for the microorganisms on the biofilm to ensure their normal metabolism and decomposition of pollutants. The rotation increases the turbulence of the wastewater, thereby accelerating the mass transfer rate of pollutants from the wastewater to the surface of the biofilm. After contacting the pollutants, the microorganisms on the biofilm use the carbon, nitrogen, phosphorus and other nutrients in the pollutants for their own metabolism. Aerobic microorganisms decompose organic matter into carbon dioxide and water in an aerobic environment, while synthesizing their own cellular material. Anaerobic microorganisms ferment organic matter and produce products such as methane and organic acids under anaerobic or hypoxic conditions. This cycle continues, thus purifying the wastewater. At this point, the entire process ends.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary wastewater treatment device, comprising a contact reaction tank (1), a rotating disk (2), and a rotating shaft (3), characterized in that: The turntable (2) is equipped with multiple stainless steel skeleton fillers (6) inside. An air hood (7) is fixedly installed on the surface of the turntable (2) and on one side of the turntable (2). Steel structure support devices (4) are provided on both sides of the contact reaction tank (1). The steel structure support device (4) includes an H-shaped steel bracket (401). The bottom of the H-shaped steel bracket (401) is connected to a pad (405) through a base plate (403). Fixing bolts (407) and anchor bolts (406) are fixedly installed on the upper and lower surfaces of the pad (405) respectively. A tapered drill rod (409) is threaded to the four corners of the H-shaped steel bracket (401). A bushing (404) is fixedly installed at the upper inside of the H-shaped steel bracket (401).

2. The rotary sewage treatment device according to claim 1, characterized in that: The contact reaction tank (1) is fixedly installed inside the H-shaped steel bracket (401), the two ends of the rotating shaft (3) are fixedly installed inside the bushing (404), the turntable (2) is fixedly installed on the circumferential surface of the rotating shaft (3), the two sides of the contact reaction tank (1) are respectively provided with water inlet and water outlet, the air hood (7) is fixedly installed with air inlet pipe (8), and the surface of the turntable (2) and located at the stainless steel skeleton packing (6) are provided with stabilizing device (5).

3. The rotary sewage treatment device according to claim 1, characterized in that: The base plate (403) is provided in two sets and is fixedly installed on the bottom of both sides of the H-shaped steel bracket (401). The pad plate (405) is provided in four sets and is fixedly installed on the bottom of the front and rear sides of the two sets of base plates (403). The surface of the base plate (403) is provided with straight holes that are compatible with the fixing bolts (407).

4. The rotary sewage treatment device according to claim 1, characterized in that: The circumferential surface of the fixing bolt (407) and above the base plate (403) is threaded with a nut (408), and multiple reinforcing ribs (402) are fixedly installed inside the H-shaped steel bracket (401).

5. The rotary sewage treatment device according to claim 2, characterized in that: The stabilizing device (5) includes multiple mounting slots (501) evenly spaced on the surface of the turntable (2). The stainless steel skeleton filler (6) is disposed inside the mounting slot (501). Multiple retaining strips (503) are fixedly installed on the circumferential surface of the stainless steel skeleton filler (6). Multiple retaining grooves (502) that are adapted to the retaining strips (503) are provided on the outer circumferential wall of the mounting slot (501).

6. The rotary sewage treatment device according to claim 5, characterized in that: The turntable (2) has a threaded hole on its surface and outside the mounting groove (501), and a locking bolt (504) is threaded into the threaded hole. A pressure plate (505) is rotatably connected to the circumferential surface of the locking bolt (504), and the end of the pressure plate (505) away from the locking bolt (504) is in contact with the surface of the stainless steel skeleton filler (6).

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