A sewage treatment air-blowing device and method capable of feeding dissolved oxygen

Abstract

The present invention discloses a sewage treatment air-blowing device and method capable of feeding dissolved oxygen, which includes an air-blowing box and a blower. One side of the air-blowing box is connected to an air outlet pipe, and the air outlet end of the air outlet pipe is connected to an air outlet pipe, and the air outlet end of the air outlet pipe is connected to an aeration component; the blower is installed on a frame, the air outlet end of the blower is connected to a jet pipe, and an oxygen input pipe is connected to the pipe body of the jet pipe near the blower end. A diversion pipe communicated with the jet pipe is installed in the air-blowing box, a spiral diversion component is arranged in the diversion pipe, and an air vent is arranged at the bottom of the diversion pipe far from the jet pipe end; a motor is arranged on one side of the frame, a driving rod is connected to the motor shaft of the motor, and a first linkage mechanism for driving the blower to work is connected to the driving rod; in the present invention, the setting of multiple linkage mechanisms can drive the work of multiple components through the rotation of the driving rod, reduce the energy consumption of the air-blowing device, save the power consumption of the blower, and reduce the sewage treatment cost.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment auxiliary equipment, and specifically to a sewage treatment air-blowing device and method capable of feeding dissolved oxygen. Background Art

[0002] Sewage treatment equipment includes basic treatment tanks such as sedimentation tanks, disinfection tanks, and aeration tanks; Blowing air can make the liquid in the tank contact with air for oxygenation. Through the contact between gas and water, oxygen in the air is transferred to the water, continuously supplementing dissolved oxygen to the water. At the same time, blowing air can agitate the liquid, accelerating the transfer of oxygen in the air to the liquid, thereby achieving the purpose of oxygenation. An air-blowing device is required for aeration in the aeration tank.

[0003] For example, in a multi-channel fully automatic coupled control air-blowing aeration tower disclosed in the existing patent publication number CN107381771B, sewage is aerated in the aeration tower, and an even number of air-blowing aeration devices are symmetrically arranged on the outside of the tower body. The even number of air-blowing aeration devices are geometrically symmetrically connected to the lower area of the air distribution plate in the tower body through their respective air pipes.

[0004] An air-blowing aeration device is provided in the above device for air supply, but multiple air-blowing aeration devices are provided. In sewage treatment, the proportion of electricity cost and chemical agent cost in the sewage operation cost exceeds 70%. Among them, the power consumption of the blower in the electricity cost accounts for about 50% of the total power consumption. The setting of multiple air-blowing aeration devices will increase energy consumption and improve the sewage treatment cost. In view of the above problems, a sewage treatment air-blowing device and method capable of feeding dissolved oxygen are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a sewage treatment air-blowing device and method capable of feeding dissolved oxygen to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A sewage treatment air-blowing device capable of feeding dissolved oxygen includes an air-blowing box and a blower. One side of the air-blowing box is connected to an air outlet pipe, the air outlet end of the air outlet pipe is connected to an air supply pipe, and the air outlet end of the air supply pipe is connected to an aeration component;

[0008] The blower is installed on a frame. The air outlet end of the blower is connected to a jet pipe. An oxygen input pipe is connected to the pipe body of the jet pipe near the blower end. A diversion pipe communicated with the jet pipe is installed in the air-blowing box. A spiral diversion component is provided in the diversion pipe. An air vent is provided at the bottom of the diversion pipe far from the jet pipe end;

[0009] A motor is provided on one side of the frame. A driving rod is connected to the motor shaft of the motor. A first linkage mechanism for driving the blower to work is connected to the driving rod;

[0010] A central rod is installed in the bellows box, one end of the central rod is connected to the active rod, and one end of the central rod away from the active rod is connected to a second linkage mechanism installed on the outer wall of the bellows box for driving the spiral guide assembly to work;

[0011] The air outlet pipe is provided with an air supply assembly for assisting the output of the gas in the bellows box.

[0012] In an optional solution: the jet tube includes an inlet tube, a throat tube and a diffuser tube, the throat tube is connected between the inlet tube and the diffuser tube, the inlet tube is connected to the air outlet of the blower, the air inlet of the blower is connected to the air inlet pipe, the diffuser tube is connected to the air inlet of the blower, and the oxygen input tube is installed on the inlet tube body.

[0013] In an optional scheme: the first linkage mechanism includes a fan drive disk installed on one side of the blower, the fan drive disk is connected to the shaft end of the fan blade through a connecting shaft, the first active disk is installed on the active rod, the first active disk is connected to the fan drive disk through a synchronous belt drive, and the first active disk is provided with a positioning seat on the side away from the motor for supporting the stable rotation of the active rod.

[0014] In an optional solution: the spiral guide assembly includes a driving rod and a spiral paddle installed on the driving rod, and the spiral paddle cooperates with the inner wall of the guide tube.

[0015] In an optional solution: the second linkage mechanism includes a second active disk and a guide drive disk, the axial end of the second active disk is connected to one end of the center rod, the axial end of the guide drive disk is connected to one end of the drive rod, and the second active disk is connected to the guide drive disk through a synchronous belt drive.

[0016] In an optional scheme: the air supply assembly includes an air supply tank and a rotating shaft installed in the air supply tank, the air supply tank is installed on the air outlet pipe, and the inner cavity of the air outlet pipe is connected to the inner cavity of the air supply tank, the axis of the rotating shaft is perpendicular to the axis of the air outlet pipe, and a plurality of paddle plates arranged in a circular array are connected to the shaft body of the rotating shaft, a paddle rod connected to the rotating shaft is provided on one side of the air supply tank, a positioning block for supporting the paddle rod for stable rotation is installed on the outer wall of the bellows box, and a third linkage mechanism for driving the paddle rod to rotate is connected to the active rod.

[0017] In an optional solution: the third linkage mechanism includes a third active disk mounted on the active rod, the end of the toggle rod away from the air tank is connected to the air supply drive disk, and the third active disk is connected to the air supply drive disk through a synchronous belt drive.

[0018] In an optional solution: a plurality of stirring rods are connected to the central rod.

[0019] In an optional solution: the aeration assembly includes a connecting pipe and a distribution pipe connected to the air outlet end of the connecting pipe, the air inlet end of the connecting pipe is connected to the air supply pipe through a three-way joint, the other interface of the three-way joint is connected to a branch pipe, several aeration pipes are connected to the distribution pipe, and the air outlet end of the aeration pipe is connected to an aeration plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The arrangement of multiple linkage mechanisms in the present invention can drive the operation of multiple components through the rotation of the active rod, thereby reducing the energy consumption of the air blowing device, saving air blowing power consumption, and reducing the cost of sewage treatment;

[0022] The setting of the blower box in the present invention can mix and store oxygen and air. When the blowing volume is greater than the used air volume, the gas can be stored in time to reduce gas waste. The blower can be slowly decelerated. Different amounts of oxygen and gas can be injected according to demand, mixed in the blower box, and then transported to the aeration component to aerate the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of the air supply component in the present invention.

[0026] Figure 4 It is a schematic diagram of the structure inside the bellows box of the present invention.

[0027] In the figure: 11, blower box; 12, blower; 13, outlet pipe; 14, air supply pipe; 15, branch pipe; 16, connecting pipe; 17, distribution pipe; 18, aeration pipe; 19, aeration plate; 20, air inlet pipe; 21, oxygen input pipe; 22, introduction pipe; 23, throat; 24, diffusion pipe; 25, fan drive plate; 26, first active plate; 27, active rod; 28, positioning seat; 29, motor; 30, third active plate; 31, toggle rod; 32, positioning block; 33, air supply tank; 34, rotating shaft; 35, toggle plate; 36, center rod; 37, stirring rod; 38, second active plate; 39, guide drive plate; 40, guide pipe; 41, drive rod; 42, spiral paddle; 43, vent. DETAILED DESCRIPTION

[0028] See also Figures 1-4, in the embodiment of the present invention, a sewage treatment air blowing device capable of feeding dissolved oxygen includes an air blowing box 11, a blower 12, a motor 29 and an aeration assembly. One side of the air blowing box 11 is connected to an air outlet pipe 13. The air outlet end of the air outlet pipe 13 is connected to an air delivery pipe 14, and the air outlet end of the air delivery pipe 14 is connected to the aeration assembly. A valve can be connected to the air outlet pipe 13;

[0029] Oxygen dissolved in water is called dissolved oxygen. Air containing oxygen is input into the sewage treatment tank through the aeration assembly. Through gas-liquid contact, oxygen in the air is transferred to the water, continuously supplementing dissolved oxygen to the water, providing dissolved oxygen for aerobic bacteria, and meeting the requirements of microbial growth and metabolic processes. Blowing aeration can keep the activated sludge suspended in the aeration tank, fully contact with the sewage, enhance the mass transfer conditions of pollutants in the water treatment system, improve the treatment effect, and provide good conditions for the diffusion and transfer of oxygen in the liquid phase;

[0030] As Figure 1 shown, the blower 12 is installed on the frame. The air outlet end of the blower 12 is connected to a jet pipe. An oxygen input pipe 21 is connected to the pipe body of the jet pipe near the blower 12 end. A valve can be installed on the oxygen input pipe 21, and the oxygen input pipe 21 can be used for the input of oxygen or other gases;

[0031] A diversion pipe 40 communicated with the jet pipe is installed in the air blowing box 11. A spiral diversion assembly is arranged in the diversion pipe 40, and an air vent 43 is arranged at the bottom of the diversion pipe 40 away from the jet pipe end;

[0032] When the blower 12 works, it can transport air through the jet pipe into the diversion pipe 40 in the air blowing box 11. After oxygen and air are mixed in the jet pipe, they can be mixed and transported again in the spiral diversion assembly;

[0033] As Figure 2 shown, a motor 29 is arranged on one side of the frame. A driving rod 27 is connected to the motor shaft of the motor 29, and a first linkage mechanism for driving the blower 12 to work is connected to the driving rod 27. When the motor 29 works, it can drive the driving rod 27 to rotate;

[0034] As Figure 4 shown, a central rod 36 is installed in the air blowing box 11. One end of the central rod 36 is connected to the driving rod 27, and the other end of the central rod 36 away from the driving rod 27 is connected to a second linkage mechanism installed on the outer wall of the air blowing box 11 for driving the spiral diversion assembly to work. When the driving rod 27 rotates, it can drive the central rod 36 to rotate, and the spiral diversion assembly can be driven to work through the second linkage mechanism;

[0035] An air delivery component for assisting the gas output in the air blower box 11 is installed on the air outlet pipe 13; when gas is continuously input into the air blower box 11, the gas in the air blower box 11 will also flow into the air outlet pipe 13, and the air delivery component can assist in the transportation of the gas.

[0036] In this embodiment, the aeration component is placed in the sewage treatment tank. When the motor 29 works, the driving rod 27 rotates, and can drive the blower 12 to work for air intake through the first linkage mechanism. Then, air is sent into the diversion pipe 40 in the air blower box 11 from the jet pipe. Oxygen can be input from the oxygen input pipe 21 and mixed with the air and enter the diversion pipe 40. While the driving rod 27 drives the central rod 36 to rotate, the spiral diversion part is driven through the second linkage mechanism to transport the mixed gas of air and oxygen. The gas is sent to the inner cavity of the air blower box 11 and discharged from the air outlet pipe 13, and is discharged to the aeration component under the action of the air delivery component.

[0037] In one embodiment, as Figure 2 shown, the jet pipe includes an inlet pipe 22, a throat pipe 23 and a diffuser pipe 24. The throat pipe 23 is connected between the inlet pipe 22 and the diffuser pipe 24. The inlet pipe 22 is connected to the air outlet end of the blower 12. The air inlet end of the blower 12 is connected to the air inlet pipe 20. The diffuser pipe 24 is connected to the air inlet end of the air blower box 11. The oxygen input pipe 21 is installed on the pipe body of the inlet pipe 22; the opening of the air inlet end of the inlet pipe 22 is larger than the opening of the air outlet end, and the opening of the air outlet end of the diffuser pipe 24 is larger than the opening of the air inlet end.

[0038] When air flows in the inlet pipe 22, the throat pipe 23 and the diffuser pipe 24, the dynamic pressure energy inherent in the fluid itself will be converted into kinetic energy. Therefore, the high-speed flowing fluid beam will form a low-pressure (negative pressure) area around it, within a certain range, thereby driving the gas in the oxygen input pipe 21 to move forward together.

[0039] In one embodiment, as Figure 2 shown, the first linkage mechanism includes a blower drive disk 25 installed on one side of the blower 12. The blower drive disk 25 is connected to the shaft end of the blower blade through a connecting shaft. A first driving disk 26 is installed on the driving rod 27. The first driving disk 26 is connected to the blower drive disk 25 through a synchronous belt drive. A positioning seat 28 for supporting the stable rotation of the driving rod 27 is provided on the side of the first driving disk 26 away from the motor 29.

[0040] When the driving rod 27 rotates, the first driving disk 26 drives the blower drive disk 25 to rotate, causing the blower blades to rotate for air blowing operation.

[0041] In one embodiment, as Figure 4 shown, the spiral diversion component includes a driving rod 41 and spiral vanes 42 installed on the driving rod 41. The spiral vanes 42 cooperate with the inner wall of the diversion pipe 40.

[0042] When the driving rod 41 drives the spiral paddle 42 to rotate, the gas can be directed to the vent 43 and discharged into the blower box 11 .

[0043] In one embodiment, Figure 4 As shown, the second linkage mechanism includes a second active disk 38 and a guide drive disk 39, the shaft end of the second active disk 38 is connected to one end of the center rod 36, the shaft end of the guide drive disk 39 is connected to one end of the drive rod 41, and the second active disk 38 is connected to the guide drive disk 39 through a synchronous belt transmission;

[0044] When the active rod 27 rotates, the center rod 36 rotates, driving the second active disk 38 to rotate. The second active disk 38 drives the guide drive disk 39 to rotate through the synchronous belt, thereby realizing the rotation of the drive rod 41.

[0045] In one embodiment, Figure 3 As shown, the air supply assembly includes an air supply tank 33 and a rotating shaft 34 installed in the air supply tank 33, the air supply tank 33 is installed on the air outlet pipe 13, and the inner cavity of the air outlet pipe 13 is connected to the inner cavity of the air supply tank 33, the axis of the rotating shaft 34 is perpendicular to the axis of the air outlet pipe 13, and the shaft body of the rotating shaft 34 is connected to a plurality of paddles 35 arranged in a circular array, a toggle rod 31 connected to the rotating shaft 34 is provided on one side of the air supply tank 33, a positioning block 32 for supporting the toggle rod 31 to rotate stably is installed on the outer wall of the blower box 11, and a third linkage mechanism for driving the toggle rod 31 to rotate is connected to the active rod 27;

[0046] When the rotating shaft 34 rotates, the plurality of paddles 35 rotate around the axis of the rotating shaft 34 , which can assist in the delivery of the gas entering the gas outlet pipe 13 .

[0047] In one embodiment, Figure 2 As shown, the third linkage mechanism includes a third active disk 30 installed on the active rod 27, the toggle rod 31 is connected to the air supply drive disk at one end away from the air tank 33, and the third active disk 30 is connected to the air supply drive disk through a synchronous belt drive; when the active rod 27 rotates, the third active disk 30 can drive the rotation of the air supply drive disk.

[0048] In one embodiment, Figure 4 As shown, a plurality of stirring rods 37 are connected to the central rod 36 ; the central rod 36 drives the stirring rods 37 to mix the gas.

[0049] In one embodiment, Figure 1As shown, the aeration assembly includes a connecting pipe 16 and a distribution pipe 17 connected to the air outlet end of the connecting pipe 16. The air inlet end of the connecting pipe 16 is connected to an air supply pipe 14 through a tee joint, and the other interface of the tee joint is connected to a branch pipe 15. A number of aeration pipes 18 are connected to the distribution pipe 17, and the air outlet end of the aeration pipe 18 is connected to an aeration disc 19. The branch pipe 15 can also be connected to other aeration assemblies.

[0050] When the present invention is in use, the aeration assembly is placed in a sewage treatment tank, and the aeration pipes 18 and the aeration discs 19 are arranged at the bottom of the sewage treatment tank. When the motor 29 works, the driving rod 27 rotates, and the first driving disc 26 drives the blower driving disc 25 to rotate, so that the blower blades rotate to perform a blowing operation. The blower 12 works to draw air, and the air inlet pipe 20 can be connected to the air outlet pipe of an external air purification device to introduce clean air.

[0051] After that, air is sent into the diversion pipe 40 in the air blowing box 11 from the jet pipe. Oxygen can be input from the oxygen input pipe 21 and mixed with the air and enter the diversion pipe 40. While the driving rod 27 drives the central rod 36 to rotate, it drives the second driving disc 38 to rotate. The second driving disc 38 drives the diversion driving disc 39 to rotate through a synchronous belt, so as to realize the rotation of the driving rod 41 and the spiral diversion member conveys the mixed gas of air and oxygen, and diverts the gas to the ventilation port 43 and discharges it into the air blowing box 11. The gas is sent to the inner cavity of the air blowing box 11 and discharged from the air outlet pipe 13.

[0052] The third driving disc 30 can drive the rotation of the air supply driving disc. A number of baffle plates 35 rotate around the axis of the rotating shaft 34, which can assist in the conveyance of the gas entering the air outlet pipe 13. The gas is discharged to the aeration assembly, and the oxygen in the air is transferred to the water through gas-water contact, continuously supplementing dissolved oxygen to the water, providing dissolved oxygen for aerobic bacteria, and meeting the requirements of the growth and metabolism processes of microorganisms. Blowing aeration can make the activated sludge suspended in the aeration tank, fully contact with the sewage, enhance the mass transfer conditions of pollutants in the water treatment system, and improve the sewage treatment effect.

Claims

1. A sewage treatment blowing device capable of delivering dissolved oxygen, comprising a blowing box (11) and a blower (12), wherein one side of the blowing box (11) is connected to an air outlet pipe (13), an air outlet end of the air outlet pipe (13) is connected to an air supply pipe (14), and an air outlet end of the air supply pipe (14) is connected to an aeration assembly; It is characterized in that, The blower (12) is mounted on a frame, the air outlet end of the blower (12) is connected to a jet pipe, the jet pipe body at one end close to the blower (12) is connected to an oxygen input pipe (21), a guide pipe (40) connected to the jet pipe is installed in the blower box (11), a spiral guide assembly is provided in the guide pipe (40), and a vent (43) is provided at the bottom of the guide pipe (40) at one end away from the jet pipe; A motor (29) is provided on one side of the frame, the motor shaft of the motor (29) is connected to an active rod (27), and the active rod (27) is connected to a first linkage mechanism for driving the blower (12) to work; A central rod (36) is installed in the bellows box (11), one end of the central rod (36) is connected to the active rod (27), and one end of the central rod (36) away from the active rod (27) is connected to a second linkage mechanism installed on the outer wall of the bellows box (11) for driving the spiral guide assembly to work; The gas outlet pipe (13) is provided with a gas supply assembly for assisting the gas output in the bellows box (11); The air supply assembly comprises an air supply tank (33) and a rotating shaft (34) installed in the air supply tank (33); the air supply tank (33) is installed on the air outlet pipe (13), and the inner cavity of the air outlet pipe (13) is communicated with the inner cavity of the air supply tank (33); the axis of the rotating shaft (34) is perpendicular to the axis of the air outlet pipe (13); a plurality of paddles (35) arranged in a circular array are connected to the shaft body of the rotating shaft (34); a toggle rod (31) connected to the rotating shaft (34) is provided on one side of the air supply tank (33); a positioning block (32) for supporting the toggle rod (31) to rotate stably is installed on the outer wall of the bellows box (11); and a third linkage mechanism for driving the toggle rod (31) to rotate is connected to the active rod (27); The third linkage mechanism comprises a third active disk (30) mounted on an active rod (27); an end of the toggle rod (31) away from the air supply tank (33) is connected to the air supply drive disk; and the third active disk (30) is connected to the air supply drive disk via a synchronous belt drive.

2. The sewage treatment air-blowing device capable of feeding dissolved oxygen according to claim 1, wherein The jet pipe comprises an inlet pipe (22), a throat pipe (23) and a diffusion pipe (24); the throat pipe (23) is connected between the inlet pipe (22) and the diffusion pipe (24); the inlet pipe (22) is connected to the air outlet end of the blower (12); the air inlet end of the blower (12) is connected to the air inlet pipe (20); the diffusion pipe (24) is connected to the air inlet end of the blower box (11); and the oxygen input pipe (21) is mounted on the body of the inlet pipe (22).

3. The sewage treatment air blowing device capable of feeding dissolved oxygen according to claim 1, characterized in that, The first linkage mechanism includes a fan drive disk (25) installed on one side of the blower (12). The fan drive disk (25) is connected to the shaft end of the fan blade through a connecting shaft. A first driving disk (26) is installed on the driving rod (27). The first driving disk (26) is connected to the fan drive disk (25) through a synchronous belt drive. A positioning seat (28) for supporting the stable rotation of the driving rod (27) is provided on the side of the first driving disk (26) away from the motor (29).

4. The sewage treatment air-blowing device capable of feeding dissolved oxygen according to claim 1, characterized in that, The spiral guide component includes a driving rod (41) and spiral vanes (42) installed on the driving rod (41). The spiral vanes (42) cooperate with the inner wall of the guide pipe (40).

5. The sewage treatment air blowing device capable of feeding dissolved oxygen according to claim 4, characterized in that, The second linkage mechanism includes a second driving disk (38) and a guide drive disk (39). One end of the shaft of the second driving disk (38) is connected to one end of the central rod (36). One end of the shaft of the guide drive disk (39) is connected to one end of the driving rod (41). The second driving disk (38) is connected to the guide drive disk (39) through a synchronous belt drive.

6. The sewage treatment air blowing device capable of feeding dissolved oxygen according to claim 1, characterized in that, A number of stirring rods (37) are connected to the central rod (36).

7. The sewage treatment blower device capable of feeding dissolved oxygen according to claim 1, characterized in that, The aeration component includes a connecting pipe (16) and a distribution pipe (17) connected to the air outlet end of the connecting pipe (16). The air inlet end of the connecting pipe (16) is connected to the air supply pipe (14) through a three-way joint. The other interface of the three-way joint is connected to a branch pipe (15). A number of aeration pipes (18) are connected to the distribution pipe (17). The air outlet end of the aeration pipe (18) is connected to an aeration disk (19).

8. A method for using the sewage treatment air-blowing device capable of feeding dissolved oxygen described in claim 1, characterized in that, When the aeration component is placed in the sewage treatment tank and the motor (29) works, the driving rod (27) rotates, and can drive the blower (12) to work for air intake through the first linkage mechanism. Then, air is sent into the guide pipe (40) in the air blower box (11) from the jet pipe. Oxygen can be input from the oxygen input pipe (21) and mixed with the air and enter the guide pipe (40). While the driving rod (27) drives the central rod (36) to rotate, the spiral guide is driven through the second linkage mechanism to convey the mixed gas of air and oxygen. The gas is sent to the inner cavity of the air blower box (11) and discharged from the air outlet pipe (13), and is discharged to the aeration component under the action of the air supply component.

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