Biological rotating disc device for domestic wastewater

Abstract

The biological rotating disc device comprises a rotating shaft, rotating discs are symmetrically and fixedly installed at the two ends of the rotating shaft, a positioning rod at the end of an installation rod is extruded, an insertion rod on the positioning rod is driven to slide in an insertion hole in one end of a fixing rod, then the positioning rod is aligned to the installation hole, extrusion on the positioning rod is canceled, and the positioning rod is fixed to the rotating shaft. A first extrusion spring pushes a positioning rod to drive the positioning rod to be inserted into a mounting hole for mounting the mounting rod, the position of the mounting rod is positioned without using components such as a positioning pin, the mounting rod is convenient to assemble on a turntable, and the mounting rod can be conveniently assembled by mutually pushing a fixing rod, an assembling rod or the positioning rod. When the disc is assembled, relative movement between the fixing rod and the assembling rods, between the assembling rods or between the positioning rod and the fixing rod is driven, the assembling rod provided with the disc is detached from the position between the two assembling rods or between the fixing rod and the assembling rod, a certain independent disc can be replaced, the whole mounting rod does not need to be detached, and operation is convenient.

Description

A biological rotating disc device for domestic wastewater Technical Field

[0001] This utility model relates to the field of biological rotating disc technology, specifically a biological rotating disc device for domestic wastewater. Background Technology

[0002] A biological rotating disc is a biological treatment structure consisting of a water tank and a rotating disc partially submerged in wastewater. It is a biofilm wastewater treatment technology, mainly including a rotating disc (disc body), a contact reaction tank, a rotating shaft, and a drive device. During operation, the disc is immersed or partially immersed in the contact reaction tank filled with wastewater. Driven by the drive device, the rotating shaft drives the disc to rotate continuously at a certain linear speed. The disc alternately contacts wastewater and air. After a period of rotation, a biofilm will adhere to the disc. When it is immersed in wastewater, the biofilm adsorbs organic pollutants in the wastewater and absorbs dissolved oxygen from the water film outside the biofilm, decomposing the organic matter and forming a continuous process of adsorption, oxidation decomposition, and oxygen absorption, thus continuously purifying the wastewater.

[0003] In existing biological rotating discs, the discs are mounted on mounting rods, which are then fixed to the rotating disc. When mounting the discs on the mounting rods, the entire mounting rod must be removed from the rotating disc before the discs can be replaced, which is quite cumbersome. Similarly, when mounting the mounting rods on the rotating disc, positioning pins or wires are required to fix the mounting rods in place, which is also cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a biological rotating disc device for domestic wastewater treatment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a biological rotating disc device for domestic wastewater, comprising a rotating shaft, with rotating discs symmetrically fixedly installed at both ends of the rotating shaft. The rotating discs are provided with mounting holes arranged in a ring array around their central axis, forming two concentric rings, one inner and one outer ring. A mounting rod is installed between the two mounting holes. Discs are equidistantly arranged between the two outer ring mounting rods and one inner ring mounting rod. Each mounting rod includes a fixing rod and an assembly rod. The assembly rod is installed between two fixing rods, and two adjacent assembly rods are movably installed together. The discs are installed in the middle of the assembly rod.

[0006] As a further preferred embodiment of this technical solution, a positioning rod is installed at one end of the fixing rod, an insertion hole is opened at one end of the fixing rod, an insertion rod is fixedly installed at one end of the positioning rod, the insertion rod is slidably inserted into the insertion hole, and a first compression spring is installed inside the corresponding insertion hole of the fixing rod.

[0007] As a further preferred embodiment of this technical solution, a positioning ring is fixedly installed at one end of the positioning rod.

[0008] As a further preferred embodiment of this technical solution, the end of the positioning rod near the positioning ring is chamfered.

[0009] As a further preferred embodiment of this technical solution, the assembly rod is provided with an assembly hole for positioning the disc in the middle.

[0010] As a further preferred embodiment of this technical solution, a second compression spring is installed inside one end of the fixed rod adjacent to the assembly rod or one end of two adjacent assembly rods, and the one end of the fixed rod adjacent to the assembly rod or one end of two adjacent assembly rods are slidably inserted into each other.

[0011] As a further preferred embodiment of this technical solution, a drive mechanism is also included. The drive mechanism includes a drive motor, a drive sprocket, a driven sprocket, and a chain. The drive sprocket is fixedly installed at the output end of the drive motor, and the driven sprocket is fixedly installed at one end of the rotating shaft. A chain is driven between the drive sprocket and the driven sprocket.

[0012] This utility model provides a biological rotating disc device for domestic wastewater treatment, which has the following beneficial effects:

[0013] (1) This utility model installs a disc between two outer ring mounting rods and one inner ring mounting rod. During the installation process, a total of three assembly rods on the two outer ring mounting rods and one inner ring mounting rod are assembled with a disc. Then, the assembly rod is installed at one end of the fixed rod or one end of an adjacent assembly rod to connect the fixed rod and the adjacent end of the assembly rod or the two adjacent assembly rods to each other. Then, the mounting rod with the disc is placed between two turntables, and the positioning rod at the end of the mounting rod is squeezed, which drives the insertion rod on the positioning rod to slide inside the insertion hole at one end of the fixed rod. At this time, the first compression spring is in a compressed state. Then, the positioning rod is aligned with the mounting hole, and the compression of the positioning rod is released. The positioning rod is pushed by the first compression spring to drive the positioning rod to be inserted into the mounting hole for the installation of the mounting rod. There is no need to use positioning pins or other components to position the mounting rod, which facilitates the assembly of the mounting rod on the turntable.

[0014] (2) When a disc is disassembled and replaced, the present invention uses mutual pushing of the fixing rod, the assembly rod, or the positioning rod to drive the relative movement between the fixing rod and the assembly rod, the assembly rod and the assembly rod, or the positioning rod and the fixing rod. This is used to remove the assembly rod with the disc installed from between two assembly rods or between the fixing rod and the assembly rod, remove the disc from the three assembly rods, and then install the disc in the assembly hole on the three assembly rods. Then, by mutually pushing the fixing rod, the assembly rod, or the positioning rod, the relative movement between the fixing rod and the assembly rod, the assembly rod and the assembly rod, or the positioning rod and the fixing rod, install the assembly rod with the disc installed from between two assembly rods or between the fixing rod and the assembly rod. This allows for the replacement of a single disc without disassembling the entire mounting rod, making the operation convenient. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the partial explosion structure of this utility model;

[0017] Figure 3 is a partial structural schematic diagram of this utility model;

[0018] Figure 4 is a partial cross-sectional view of the present invention;

[0019] In the diagram: 1. Shaft; 2. Turntable; 3. Mounting hole; 4. Mounting rod; 5. Disc; 6. Fixing rod; 7. Assembly rod; 8. Positioning rod; 9. Insertion hole; 10. Insertion rod; 11. First compression spring; 12. Positioning ring; 13. Chamfer; 14. Assembly hole; 15. Second compression spring; 16. Drive motor; 17. Drive sprocket; 18. Driven sprocket; 19. Chain. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: As shown in Figures 1 to 4, in this embodiment, a biological rotating disc device for domestic wastewater includes a rotating shaft 1. Rotary discs 2 are symmetrically fixedly installed at both ends of the rotating shaft 1. The rotating discs 2 have mounting holes 3 arranged in a ring array around their central axis. There are two rings of mounting holes 3, divided into an inner ring and an outer ring. An mounting rod 4 is installed between two of the mounting holes 3. Discs 5 are equidistantly arranged between the two outer ring mounting rods 4 and one inner ring mounting rod 4. Each mounting rod 4 includes a fixing rod 6 and an assembly rod 7. The assembly rod 7 is installed between two fixing rods 6, and two adjacent assembly rods 7 are movably installed. Discs 5 are installed in the middle of the assembly rod 7. A positioning rod 8 is installed at one end of the fixing rod 6, and an insertion hole 9 is provided at one end of the fixing rod 6. One end of the positioning rod 8 is fixedly installed... A plug rod 10 is provided, which is slidably inserted into a plug hole 9. A first compression spring 11 is installed inside the plug hole 9 corresponding to the fixing rod 6. The mounting rod 4 with the disc 5 is placed between the two turntables 2, and the positioning rod 8 at the end of the mounting rod 4 is compressed, causing the plug rod 10 on the positioning rod 8 to slide inside the plug hole 9 at one end of the fixing rod 6. At this time, the first compression spring 11 is in a compressed state. Then, the positioning rod 8 is aligned with the mounting hole 3, and the compression of the positioning rod 8 is released. The positioning rod 8 is pushed into the mounting hole 3 by the first compression spring 11, which is used to install the mounting rod 4. There is no need to use positioning pins or other components to position the mounting rod 4, which facilitates the assembly of the mounting rod 4 on the turntable 2. When disassembling the mounting rod 4, the positioning rod 8 is moved relative to the end of the fixing rod 6, and the positioning rod 8 is slid out of the mounting hole 3, which can realize the disassembly of the mounting rod 4.

[0022] As shown in Figures 1 to 4, a positioning ring 12 is fixedly installed at one end of the positioning rod 8.

[0023] When the positioning rod 8 is inserted into the mounting hole 3, the positioning ring 12 can position the final position of the positioning rod 8 to prevent the positioning rod 8 from being inserted too deeply into the mounting hole 3 and causing the positioning rod 8 and the fixing rod 6 to fall off each other.

[0024] As shown in Figures 1 to 4, the end of the positioning rod 8 near the positioning ring 12 has a chamfer 13.

[0025] The chamfered corner 13 at the end of the positioning rod 8 makes it easy to insert the positioning rod 8 into the mounting hole 3.

[0026] As shown in Figures 1 to 4, the middle part of the assembly rod 7 is provided with an assembly hole 14 for positioning the disc 5.

[0027] The mounting hole 14 can be used to position the disk 5 for installation.

[0028] As shown in Figures 1 to 4, a second compression spring 15 is installed inside one end of the fixed rod 6 adjacent to the assembly rod 7 or one end of two adjacent assembly rods 7, and the fixed rod 6 and the assembly rod 7 adjacent to each other or one end of two adjacent assembly rods 7 are slidably inserted into each other.

[0029] When the assembly rod 7 is installed at one end of the fixed rod 6 or at one end of an adjacent assembly rod 7, the fixed rod 6 and the adjacent end of the assembly rod 7 or the two adjacent assembly rods 7 are interlocked. At this time, the second compression spring 15 will be in a compressed state, which can be used to ensure the stable interlocking between the fixed rod 6 and the adjacent end of the assembly rod 7 or the two adjacent assembly rods 7.

[0030] As shown in Figures 1 to 4, the system also includes a drive mechanism, which includes a drive motor 16, a drive sprocket 17, a driven sprocket 18, and a chain 19. The drive sprocket 17 is fixedly installed at the output end of the drive motor 16, and the driven sprocket 18 is fixedly installed at one end of the shaft 1. The chain 19 is driven between the drive sprocket 17 and the driven sprocket 18.

[0031] The drive motor 16 drives the drive sprocket 17 to rotate. The chain 19 drives the drive sprocket 17 and the driven sprocket 18 to rotate the shaft 1, which in turn drives the turntable 2 to rotate continuously at a certain linear speed. The disc 5 will alternately contact sewage and air to decompose organic matter and achieve continuous purification of sewage.

[0032] This utility model provides a biological rotating disc device for domestic wastewater treatment, the specific working principle of which is as follows:

[0033] When using the device, a disc 5 needs to be installed between the two outer ring mounting rods 4 and the inner ring mounting rod 4. During the installation of the disc 5, a total of three assembly rods 7 on the two outer ring mounting rods 4 and the inner ring mounting rod 4 are assembled with the disc 5. Then, the assembly rods 7 are installed at one end of the fixing rod 6 or one end of an adjacent assembly rod 7, for interlocking between the fixed rod 6 and the adjacent ends of the assembly rods 7 or between two adjacent assembly rods 7. Finally, the mounting device with the disc 5 is installed... The rod 4 is placed between the two turntables 2. The positioning rod 8 at the end of the mounting rod 4 is pressed, which causes the insertion rod 10 on the positioning rod 8 to slide inside the insertion hole 9 at one end of the fixed rod 6. At this time, the first compression spring 11 is in a compressed state. Then, the positioning rod 8 is aligned with the mounting hole 3, and the compression of the positioning rod 8 is released. The positioning rod 8 is pushed by the first compression spring 11 and inserted into the mounting hole 3 for the installation of the mounting rod 4. When the mounting rod 4 is disassembled, the positioning rod 8 is moved relative to the end of the fixed rod 6 and slid out of the mounting hole 3, thus realizing the disassembly of the mounting rod 4.

[0034] When disassembling and replacing a certain disc 5, the relative movement between the fixed rod 6 and the assembly rod 7, the assembly rod 7 and the assembly rod 7, or the positioning rod 8 and the fixed rod 6 is driven by pushing the fixed rod 6, the assembly rod 7 and the assembly rod 7, or the positioning rod 8 and the fixed rod 6. This is used to remove the assembly rod 7 with the disc 5 installed from between the two assembly rods 7 or between the fixed rod 6 and the assembly rod 7, remove the disc 5 from the three assembly rods 7, and then install the disc 5 in the assembly hole 14 on the three assembly rods 7. Then, by pushing the fixed rod 6, the assembly rod 7, or the positioning rod 8, the relative movement between the fixed rod 6 and the assembly rod 7, the assembly rod 7 and the assembly rod 7, or the positioning rod 8 and the fixed rod 6 is driven by pushing the fixed rod 6, the assembly rod 7 and the assembly rod 7, or the positioning rod 8 and the fixed rod 6. This is used to install the assembly rod 7 with the disc 5 installed from between the two assembly rods 7 or between the fixed rod 6 and the assembly rod 7.

[0035] When this device is in operation, the drive motor 16 drives the drive sprocket 17 to rotate. The chain 19 drives the drive sprocket 17 and the driven sprocket 18 to rotate the shaft 1, which in turn drives the turntable 2 to rotate continuously at a certain linear speed. The disc 5 will alternately contact sewage and air to decompose organic matter and achieve continuous purification of sewage.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biological rotating disc device for domestic wastewater treatment, comprising a rotating shaft (1), characterized in that: Both ends of the rotating shaft (1) are symmetrically fixedly mounted with turntables (2). The turntables (2) are provided with mounting holes (3) arranged in a ring array with the central axis of the turntables (2) as the axis. There are two rings of mounting holes (3), which are divided into an inner ring and an outer ring. A mounting rod (4) is installed between the two mounting holes (3). A disc (5) is equidistantly arranged between the two outer ring mounting rods (4) and the inner ring mounting rod (4). The mounting rod (4) includes a fixing rod (6) and an assembly rod (7). The assembly rod (7) is installed between the two fixing rods (6). The two adjacent assembly rods (7) are movably installed between each other. The disc (5) is installed in the middle of the assembly rod (7).

2. The biological rotating disc device for domestic wastewater treatment according to claim 1, characterized in that: A positioning rod (8) is installed at one end of the fixing rod (6), and an insertion hole (9) is opened at one end of the fixing rod (6). An insertion rod (10) is fixedly installed at one end of the positioning rod (8). The insertion rod (10) is slidably inserted into the insertion hole (9). A first compression spring (11) is installed inside the fixing rod (6) corresponding to the insertion hole (9).

3. The biological rotating disc device for domestic wastewater treatment according to claim 2, characterized in that: A positioning ring (12) is fixedly installed at one end of the positioning rod (8).

4. The biological rotating disc device for domestic wastewater treatment according to claim 3, characterized in that: The positioning rod (8) has a chamfer (13) at one end near the positioning ring (12).

5. The biological rotating disc device for domestic wastewater treatment according to claim 1, characterized in that: The assembly rod (7) has an assembly hole (14) in the middle for positioning the disc (5).

6. The biological rotating disc device for domestic wastewater treatment according to claim 1, characterized in that: A second compression spring (15) is installed inside one end of the fixed rod (6) adjacent to the assembly rod (7) or one end of two adjacent assembly rods (7). The fixed rod (6) and the assembly rod (7) adjacent to each other or one end of two adjacent assembly rods (7) are slidably inserted into each other.

7. A biological rotating disc device for domestic wastewater treatment according to claim 1, characterized in that: It also includes a drive mechanism, which includes a drive motor (16), a drive sprocket (17), a driven sprocket (18), and a chain (19). The output end of the drive motor (16) is fixedly mounted with the drive sprocket (17), and one end of the shaft (1) is fixedly mounted with the driven sprocket (18). The chain (19) is driven between the drive sprocket (17) and the driven sprocket (18).

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