Low-noise biological rotating disc sewage treatment equipment

Abstract

The present application relates to a kind of low noise biological rotating disc sewage treatment equipment, it is related to sewage treatment technical field, including rotating disc tank body, rotating disc tank cover, rotating disc system, several rotating disc disc, biological membrane maintenance system and delivery system, delivery system is communicated with rotating disc tank body, rotating disc system is installed on rotating disc tank body, rotating disc system has rotary end, each rotating disc disc is installed on rotary end, equidistant interval is equipped between each rotating disc disc, biological membrane maintenance system includes cleaning lifting frame, several cleaning rods, each cleaning rod is swingably installed in cleaning lifting frame lower side, cleaning lifting frame is installed on rotating disc tank cover, rotating disc tank cover is equipped with avoiding groove, each cleaning rod is inserted into corresponding avoiding groove, each cleaning rod is inserted between adjacent rotating disc disc, the two sides of each cleaning rod close to corresponding rotating disc disc are all equipped with several water jet, the timely cleaning of rotating disc disc is realized, sufficient specific surface area is maintained, guarantee processing effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a low-noise biological rotating disc wastewater treatment device. Background Technology

[0002] The core principle of the BBR (Biological Bioreactor) rotating disc is to use a biofilm grown on the rotating disc to adsorb and degrade organic matter in wastewater, thereby purifying the water. It cleverly combines biodegradation and solid-liquid separation processes within a single unit.

[0003] When the biological rotating disc is in operation, a series of closely packed discs are partially submerged in the wastewater to be treated. The discs provide a large surface area for microbial growth. In the initial stage of operation, microorganisms form a biofilm on the disc surface. As the discs rotate, when the discs are submerged in the wastewater, the biofilm adsorbs organic pollutants from the wastewater as food. When the discs rotate out of the water, the biofilm undergoes aerobic respiration, decomposing the adsorbed organic matter. As the microorganisms multiply, the biofilm gradually thickens. The internal microorganisms, unable to obtain oxygen, transition to an anaerobic state, their adhesion decreases, and they eventually detach and settle. This process is in dynamic equilibrium, ensuring that the biofilm maintains a consistently high level of activity.

[0004] The rotating discs of existing BBR biological rotating discs are prone to a significant decrease in specific surface area due to the gradual deposition of impurities in the water. Their shedding process is random, and the microorganisms inside the biofilm cannot participate in decomposition for a long time, which reduces the treatment efficiency. Summary of the Invention

[0005] To overcome the technical defects of the existing technology, the present invention provides a low-noise biological rotating disc sewage treatment device, which realizes timely cleaning of the rotating disc, maintains sufficient specific surface area, and ensures treatment effect.

[0006] The technical solution adopted in this invention is:

[0007] A low-noise biological rotating disc wastewater treatment device includes a rotating disc tank, a rotating disc tank cover, a rotating disc system, several rotating discs, a biofilm maintenance system, and a conveying system. The conveying system is connected to the rotating disc tank. The rotating disc system is installed on the rotating disc tank and has a rotating end. Each rotating disc is installed on the rotating end and is spaced equidistantly. The biofilm maintenance system includes a cleaning lifting frame, several cleaning rods, several cleaning selection plates, and a selection control device. Each cleaning rod is oscillatingly installed under the cleaning lifting frame. The cleaning lifting frame is installed on the rotating disc tank cover, which has several clearance grooves. Each cleaning rod extends into a corresponding clearance groove and into an adjacent rotating disc. Between the plates, the top of the cleaning rod is provided with a water inlet, and each cleaning rod has several water spray nozzles on both sides near the corresponding turntable plate. The cleaning rod is hollow, and each cleaning selection plate is slidably installed inside the corresponding cleaning rod. A sliding control plate is hinged to the upper side of each cleaning selection plate. Two electromagnets are provided near the sliding control plate of each cleaning rod. Each electromagnet attracts the sliding control plate to deflect. When the sliding control plate deflects, the water inlet of the cleaning rod only connects to one side of the cleaning selection plate and the sliding control plate. Both sides of the cleaning selection plate are provided with sealing cones adapted to the corresponding water spray nozzles. The selection control device is installed on the cleaning lifting frame and is drivenly connected to the sliding control plate.

[0008] Preferably, the selection control device includes a cleaning selection lifting frame, a cleaning selection cylinder, and a plurality of cleaning selection ropes. The cleaning selection lifting frame is slidably mounted on the cleaning lifting frame, the cleaning selection cylinder is mounted on the cleaning selection lifting frame, the cleaning selection ropes are mounted on the bottom of the cleaning selection lifting frame, and the bottom of the cleaning selection ropes is mounted on a sliding control plate.

[0009] Preferably, the turntable groove is provided with support frames on both sides, and the two ends of the turntable system are rotatably mounted on the turntable groove through corresponding support frames.

[0010] Preferably, the turntable groove cover is fastened to the turntable groove body.

[0011] Preferably, the turntable system includes a turntable rotation shaft and a rotation motor. The rotation motor is mounted on the turntable groove, and the turntable rotation shaft is rotatably mounted on the turntable groove. The output end of the rotation motor is connected to the turntable rotation shaft via a chain drive, and the turntable discs are mounted on the turntable rotation shaft.

[0012] Preferably, the turntable has a three-dimensional mesh structure.

[0013] Preferably, the conveying system includes a water pump and a water pipe connected to the turntable trough.

[0014] Preferably, the cleaning lifting frame is mounted on a pre-set lifting rail on the turntable trough cover via a slider, and the cleaning lifting frame is driven to lift by a cylinder.

[0015] Preferably, the cleaning rod is mounted on the cleaning lifting frame via a pin, the cleaning rod is hollow, and the cleaning rod is connected to a water pipe.

[0016] The beneficial effects of this invention are:

[0017] The conveying system is connected to the rotary tank to pump sewage into the rotary tank. The rotary system is installed on the rotary tank and has a rotating end. Each rotary disc is installed on the rotating end, which drives each rotary disc to rotate, so that each rotary disc switches between being immersed in the rotary tank and being exposed to the air. There are equidistant intervals between each rotary disc, which facilitates the biofilm maintenance system to extend into adjacent rotary discs for cleaning.

[0018] The biofilm maintenance system includes a cleaning lifting frame, several cleaning rods, several cleaning selection plates, and a selection control device. Each cleaning rod is oscillatingly mounted under the cleaning lifting frame, which is mounted on a turntable cover. The turntable cover has several clearance grooves, and each cleaning rod extends into its corresponding clearance groove and between adjacent turntable plates. Each cleaning rod has a water inlet at its top, and several spray nozzles on both sides of each cleaning rod near its corresponding turntable plate. The cleaning rods are hollow, and each cleaning selection plate is slidably mounted inside its corresponding cleaning rod. Each cleaning selection plate has a hinged upper side... The sliding control plate has two electromagnets near each cleaning rod. Each electromagnet attracts the sliding control plate to deflect. When the sliding control plate deflects, the water inlet of the cleaning rod is connected to only one side of the cleaning selection plate and the sliding control plate. Both sides of the cleaning selection plate are equipped with sealing cones that match the corresponding water spray nozzles. The selection control device is installed on the cleaning lifting frame and is connected to the sliding control plate. During the rotation of each turntable, each cleaning rod extends between the turntables to achieve timely cleaning of the turntables, maintain sufficient specific surface area, and ensure treatment effect.

[0019] The reason why each cleaning rod needs to be raised and lowered is that in order to fix the turntable plates, there are several connecting strips between each turntable plate. Generally speaking, there are six connecting strips arranged in a radial shape between adjacent turntable plates. The raised and lowered cleaning rods can avoid the connecting strips.

[0020] When the sliding control plate deflects, the water inlet of the cleaning rod is connected to only one side of the cleaning selection plate and the sliding control plate, which causes water to spray from the nozzle on one side of the cleaning rod. To ensure cleaning efficiency, water is sprayed simultaneously from the sides of two adjacent cleaning rods that are close to each other. That is, the adjacent electromagnets on two adjacent cleaning rods are always energized at the same time. This causes the two adjacent cleaning rods to spray water onto both sides of the turntable at the same time, so that the water at the turntable can be fully convected and impacted, thus improving the cleaning effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure 3 This is a schematic diagram of the structure from another perspective of the present invention.

[0024] Figure 4 This is a schematic diagram of a biofilm maintenance system.

[0025] Figure 5 This is a schematic diagram of the biofilm maintenance system and the rotating disk structure.

[0026] Figure 6 This is a cross-sectional schematic diagram of the biofilm maintenance system and the rotating disk structure.

[0027] Figure 7 for Figure 6 Enlarged diagram of point B in the middle.

[0028] Figure 8 This is a schematic diagram of the sliding control plate and the cleaning selection plate.

[0029] Figure 9 for Figure 8 Enlarged diagram of point C in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Turntable groove; 11. Support frame;

[0032] 2. Turntable groove cover; 21. Clearance groove; 22. Lifting rail;

[0033] 3. Turntable system; 31. Turntable rotation shaft; 32. Rotary motor;

[0034] 4. Turntable plate; 41. Connecting strip;

[0035] 5. Biofilm maintenance system; 51. Cleaning lifting frame; 52. Cleaning rod; 521. Spray nozzle; 522. Electromagnet; 523. Inlet; 53. Cylinder; 55. Cleaning selection plate; 56. Sliding control plate; 551. Sealing cone; 57. Selection control device; 571. Cleaning selection lifting frame; 572. Cleaning selection cylinder; 573. Cleaning selection rope;

[0036] 6. Conveying system. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] like Figure 1 — Figure 9 As shown, this embodiment provides a low-noise biological rotating disc wastewater treatment device, including a rotating disc tank 1, a rotating disc tank cover 2, a rotating disc system 3, several rotating discs 4, a biofilm maintenance system 5, and a conveying system 6. The conveying system 6 is connected to the rotating disc tank 1 and is used to pump wastewater into the rotating disc tank 1. The rotating disc system 3 is installed on the rotating disc tank 1 and has a rotating end. Each rotating disc 4 is installed on the rotating end, driving each rotating disc 4 to rotate, so that each rotating disc 4 switches between a state of being immersed in the rotating disc tank 1 and a state of being exposed to air. There are equidistant intervals between each rotating disc 4, which facilitates the biofilm maintenance system 5 to extend into adjacent rotating discs 4 for cleaning.

[0039] Specifically, the biofilm maintenance system 5 includes a cleaning lifting frame 51, several cleaning rods 52, several cleaning selection plates 55, and a selection control device 57. Each cleaning rod 52 is swayingly mounted on the underside of the cleaning lifting frame 51. The cleaning lifting frame 51 is mounted on the turntable groove cover 2, which has several clearance grooves 21. Each cleaning rod 52 extends into its corresponding clearance groove 21 and between adjacent turntable discs 4. The top of each cleaning rod 52 has a water inlet 523, and several water spray nozzles 521 are provided on both sides of each cleaning rod 52 near its corresponding turntable disc 4. The cleaning rods 52 are hollow, and each cleaning selection plate 55 is slidably mounted inside its corresponding cleaning rod 52. Each cleaning selection plate 55 has a sliding control plate 56 hinged to its upper side. Two opposing electromagnets 522 are provided at the position of the control plate 56. Each electromagnet 522 attracts the sliding control plate 56 to deflect. When the sliding control plate 56 deflects, the water inlet 523 of the cleaning rod 52 is connected to only one side of the cleaning selection plate 55 and the sliding control plate 56. Both sides of the cleaning selection plate 55 are provided with sealing cones 551 that are adapted to the corresponding water spray nozzles 521, so that the water spray nozzles 521 on one side of the cleaning rod 52 spray water, while the water spray nozzles 521 on the other side are blocked. The selection control device 57 is installed on the cleaning lifting frame 51 and is connected to the sliding control plate 56. During the rotation of each turntable plate 4, each cleaning rod 52 extends into the space between each turntable plate 4 to achieve timely cleaning of the turntable plate 4, maintain sufficient specific surface area, and ensure the treatment effect.

[0040] The reason why each cleaning rod 52 needs to be raised and lowered is that in order to fix the turntable plate 4, there are several connecting strips 41 between each turntable plate 4. Generally speaking, there are six connecting strips 41 arranged in a radial shape between adjacent turntable plates 4. The raised and lowered cleaning rod 52 can avoid each connecting strip 41.

[0041] Specifically, when the sliding control plate 56 deflects, the water inlet 523 of the cleaning rod 52 connects only one side of the cleaning selection plate 55 and the sliding control plate 56, thereby causing the water nozzle 521 on one side of the cleaning rod 52 to spray water. In order to ensure cleaning efficiency, the sides of two adjacent cleaning rods 52 that are close to each other spray water at the same time. That is to say, the adjacent electromagnets 522 located on the two adjacent cleaning rods 52 are always energized at the same time. This makes the two adjacent cleaning rods 52 spray water on both sides of the turntable plate 4 at the same time, so that the water at the position of the turntable plate 4 can be fully convected and impacted, thus improving the cleaning effect.

[0042] The selection control device 57 includes a cleaning selection lifting frame 571, a cleaning selection cylinder 572, and several cleaning selection ropes 573. The cleaning selection lifting frame 571 is slidably mounted on the cleaning lifting frame 571. The cleaning selection cylinder 572 is mounted on the cleaning selection lifting frame 571. The cleaning selection ropes 573 are mounted on the bottom of the cleaning selection lifting frame 571. The bottom of the cleaning selection ropes 573 is mounted on the sliding control plate 56. The cleaning selection cylinder 572 drives the cleaning selection lifting frame 571 to rise and fall, thereby realizing the rotation and reset of the sliding control plate 56. After water is sprayed from the spray nozzle 521 on one side of the cleaning rod 52, since the water inlet 523 does not stop supplying water, the water flow has a pushing force on the sliding control plate 56. The cleaning selection lifting frame 571 drives each cleaning selection rope 573 to rise synchronously, causing the sliding control plate 56 to disengage from the mutually attracting electromagnets 522. This allows each sliding control plate 56 to reset to the position between the two electromagnets 522, making it easier for the other electromagnet 522 to attract the sliding control plate 56, thus realizing the spraying of water from the spray nozzle 521 on the other side of the cleaning rod 52.

[0043] Specifically, the turntable trough 1 is provided with support frames 11 on both sides, and the two ends of the turntable system 3 are rotatably mounted on the turntable trough 1 through the corresponding support frames 11, so as to realize the rotational installation of the turntable system 3.

[0044] Specifically, the turntable groove cover 2 is fastened to the turntable groove body 1, which facilitates the lifting of the turntable groove cover 2 for maintenance.

[0045] Specifically, the turntable system 3 includes a turntable rotation shaft 31 and a rotation motor 32. The rotation motor 32 is mounted on the turntable groove 1, and the turntable rotation shaft 31 is rotatably mounted on the turntable groove 1. The output end of the rotation motor 32 is connected to the turntable rotation shaft 31 via a chain drive. The turntable disc 4 is mounted on the turntable rotation shaft 31. The rotation motor 32 drives the turntable rotation shaft 31 to rotate, thereby realizing the rotation of the turntable disc 4.

[0046] Specifically, the rotating disc 4 has a three-dimensional mesh structure, which increases the specific surface area of ​​the rotating disc 4 and improves the treatment efficiency. The material of the rotating disc 4 is a three-dimensional mesh structure formed by filamentous material obtained by blending PVDC polymer and auxiliary materials with latex. The three-dimensional mesh structure material produced by this blending process is existing technology and will not be described in detail here. 40% to 50% of the biological rotating disc is immersed in water, and the rotation speed is 2.5 r / min to 5 r / min. This allows the biological biofilm to alternate between aerobic and anoxic zones above and below the water and in the air. At the same time, it also forms aerobic and anoxic environments inside and outside the biofilm. The technology of biological treatment by rotating the disc 4 is existing technology and will not be described in detail here.

[0047] Specifically, the conveying system 6 includes a water pump and a water pipe connected to the turntable tank 1 to deliver sewage.

[0048] Specifically, the cleaning lifting frame 51 is installed on the pre-set lifting rail 22 of the turntable groove cover 2 via a slider, and the cleaning lifting frame 51 is driven to lift by a cylinder 53, which is quiet and environmentally friendly.

[0049] Specifically, the cleaning rod 52 is mounted on the cleaning lifting frame 51 by a pin to prevent rigid collision with the connecting strip 41. The cleaning rod 52 is hollow and connected to a water pipe. The water spray nozzle 521 on the cleaning rod 52 sprays water to clean the turntable plate 4.

[0050] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A low-noise biological rotating disc wastewater treatment device, characterized in that, The system includes a turntable tank, a turntable tank cover, a turntable system, several turntable discs, a biofilm maintenance system, and a conveying system. The conveying system is connected to the turntable tank. The turntable system is mounted on the turntable tank and has a rotating end. Each turntable disc is mounted on the rotating end and is spaced equidistantly. The biofilm maintenance system includes a cleaning lifting frame, several cleaning rods, several cleaning selection plates, and a selection control device. Each cleaning rod is oscillatingly mounted under the cleaning lifting frame. The cleaning lifting frame is mounted on the turntable tank cover, which has several clearance grooves. Each cleaning rod extends into a corresponding clearance groove and between adjacent turntable discs. The top of each cleaning rod has a water inlet. Several spray nozzles are located on both sides of each cleaning rod near the corresponding turntable plate. Each cleaning rod is hollow. Each cleaning selection plate is slidably installed inside the corresponding cleaning rod. A sliding control plate is hinged to the upper side of each cleaning selection plate. Two electromagnets are located near the sliding control plate on each cleaning rod. Each electromagnet attracts the sliding control plate to deflect. When the sliding control plate deflects, the water inlet of the cleaning rod connects only one side of the cleaning selection plate and the sliding control plate. Both sides of the cleaning selection plate have sealing cones adapted to the corresponding spray nozzles. The selection control device is mounted on the cleaning lifting frame and is drively connected to the sliding control plate.

2. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The selection control device includes a cleaning selection lifting frame, a cleaning selection cylinder, and several cleaning selection ropes. The cleaning selection lifting frame is slidably mounted on the cleaning lifting frame. The cleaning selection cylinder is mounted on the cleaning selection lifting frame. The cleaning selection ropes are mounted at the bottom of the cleaning selection lifting frame, and the bottom of the cleaning selection ropes is mounted on a sliding control plate.

3. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The turntable groove is provided with support frames on both sides, and the two ends of the turntable system are rotatably mounted on the turntable groove through corresponding support frames.

4. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The turntable groove cover is fastened to the turntable groove body.

5. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The turntable system includes a turntable rotation shaft and a rotation motor. The rotation motor is mounted on the turntable groove, and the turntable rotation shaft is rotatably mounted on the turntable groove. The output end of the rotation motor is connected to the turntable rotation shaft via a chain drive, and the turntable discs are mounted on the turntable rotation shaft.

6. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The turntable disc has a three-dimensional mesh structure.

7. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The conveying system includes a water pump and a water pipe connected to the turntable trough.

8. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The cleaning lifting frame is mounted on a pre-set lifting rail on the turntable trough cover via a slider, and the cleaning lifting frame is driven to lift by a cylinder.

9. The low-noise biological rotating disc wastewater treatment equipment according to claim 1, characterized in that, The cleaning rod is mounted on the cleaning lifting frame via a pin. The cleaning rod is hollow and connected to a water pipe.

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