Integrated gas-liquid feeding mechanism for sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, in particular to an integrated gas-liquid feeding mechanism for sewage treatment, which comprises a dumbbell-shaped gas-liquid feeding mechanism box, the middle of the dumbbell-shaped gas-liquid feeding mechanism box is a pressure feeding and discharging section, two ends of the dumbbell-shaped gas-liquid feeding mechanism box are swing driving sections, a gas transfer bin and a liquid transfer bin are symmetrically arranged in the pressure feeding and discharging section, and each bin is divided into two piston cavities; a swing bin is arranged in the swing driving section, a circulating swing part is arranged in the swing driving section, the bidirectional power assembly penetrates through the pressure feeding and discharging section and drives the circulating swing part to swing, a piston block in the piston cavity is connected with the circulating swing part through an electric telescopic rod to achieve reciprocating motion, and a feeding / discharging hole with a one-way sealing baffle is formed in the side wall of the piston cavity. Adding of gas and liquid is synchronously controlled through a single power source, the integration degree is high, the operation cost is low, the electric telescopic rod can independently adjust the initial position of the piston block, selective feeding is achieved, and the process regulation and control flexibility is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to an integrated gas-liquid feeding mechanism for sewage treatment. Background Art

[0002] During the sewage treatment process, the addition of gases (such as oxygen, ozone, etc.) and liquids (such as chemicals, carbon sources, etc.) needs to be scientifically regulated according to the treatment process stage and water quality targets.

[0003] Gas addition is usually done during the aerobic / anaerobic biological treatment phase. The gas added during the aerobic biological treatment phase is generally oxygen or ozone, which is used for continuous aeration and degradation of difficult-to-biodegrade organic matter, such as pharmaceutical wastewater. It also replaces chlorine and reduces disinfection by-products. During the anaerobic stage, nitrogen and carbon dioxide are added to maintain a strict anaerobic environment.

[0004] Liquid addition occurs during the pretreatment stage, biological treatment stage, and advanced treatment stage. Acid and alkali solutions, coagulants, etc. are usually added during the pretreatment stage to adjust the pH of the mixed solution and increase coagulation and sedimentation. The liquid added in the biological treatment stage is carbon source, nutrient solution, etc., which is used to supplement carbon source and promote nitrogen and phosphorus removal; Oxidants, adsorbents, etc. are added in the deep treatment stage to treat difficult-to-degrade organic matter and perform adsorption decolorization treatment.

[0005] The addition of the aforementioned liquids or gases is typically accomplished through various liquid or gas addition pump devices, such as an air pump-based exposure device for gas addition and a water pump for liquid transfer. Regardless of the gas or liquid addition device employed, each pump body utilizes an independent power system in actual design. While this enables transfer of the corresponding gas or liquid, the independent systems are difficult to control in actual operation, have high operating costs, are complex to install, and have a low degree of integration, hindering efficient operation. In view of this, this technical solution designs an integrated gas-liquid feeding mechanism for sewage treatment. Summary of the Invention

[0006] The object of the present invention is to provide an integrated gas-liquid feeding mechanism for sewage treatment to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: An integrated gas-liquid feeding mechanism for sewage treatment includes a gas-liquid feeding mechanism box, which is configured as a bilaterally symmetrical dumbbell-shaped structure with circular end caps symmetrically installed at both ends. A columnar region in the middle of the gas-liquid feeding mechanism box is configured as a pressure feed and discharge section for transferring the gas and liquid to be fed and then inputting them into the sewage treatment device to be added. Spherical regions at both ends of the gas-liquid feeding mechanism box are configured as swing drive sections for controlling the cyclic operation of the pressure feed and discharge sections. The gas transfer bin and the liquid transfer bin are symmetrically provided on both sides of the pressure inlet and outlet section, and the swing drive section is provided with a spherical swing bin. The two ends of the gas transfer bin and the liquid transfer bin are respectively connected with the corresponding swing bins. A two-way power component is also provided in the middle of the inner side of the pressure inlet and outlet section. The two ends of the two-way power component extend to the swing bin and are connected with the circulating swing parts inside the swing bin, that is, the two-way power component rotates, synchronously driving the circulating swing parts at both ends to rotate. The gas transfer bin is separated into gas piston chamber I and gas piston chamber II on both sides, and the liquid transfer bin is separated into liquid piston chamber I and liquid piston chamber II on both sides. Gas piston chamber I and gas The piston chamber II, the liquid piston chamber I, and the liquid piston chamber II are all slidably connected with piston blocks. The side of the piston block facing the inside of the swing bin is swingably connected to the circulating swing member placed inside the swing bin through an adjustable connecting piece. That is, when the circulating swing member swings back and forth, the adjustable connecting piece is controlled to control the piston block to circulate back and forth inside the gas piston chamber I, the gas piston chamber II, the liquid piston chamber I, and the liquid piston chamber II. At the same time, inlet and outlet holes are opened on the side walls of the gas piston chamber I, the gas piston chamber II, the liquid piston chamber I, and the liquid piston chamber II, so that gas and liquid feeding of the four chambers can be carried out simultaneously under the drive of a single set of bidirectional power components. At the same time, under the back-and-forth swinging of the two sides of the circulating swinging part, the reverse flow of the material in and out of the gas transfer chamber and the liquid transfer chamber is controlled, that is, when air is taken in to the gas transfer chamber, the liquid in the liquid transfer chamber is discharged, and vice versa. Under the control of the adjustable connecting part, according to the feeding requirements of gas and liquid, on the premise that the two-way power component is not stopped, the piston block can be adjusted to the initial height in the corresponding cavity, thereby realizing selective control of the material in and out of each chamber, and further improving the controllability and efficiency of the operation of this feeding mechanism.

[0008] Compared with the prior art, the beneficial effects of the present invention are: a single servo motor drives the four gas and liquid chambers to operate synchronously, replacing multiple independent pump systems, reducing installation complexity and equipment costs, and achieving high integration.

[0009] The working state of each piston chamber can be independently adjusted through the electric telescopic rod to achieve precise control of gas / liquid dosage and start and stop, adapting to the differentiated needs of each stage of sewage treatment (such as aerobic / anaerobic); By connecting the shaft to the external output shaft, the drive of devices such as agitators can be expanded to improve power reuse rate and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of an integrated gas-liquid feeding mechanism for sewage treatment.

[0011] Figure 2 This is a side structural schematic diagram of an integrated gas-liquid feeding mechanism for sewage treatment.

[0012] Figure 3 This is a schematic diagram of the top view of an integrated gas-liquid feeding mechanism for sewage treatment.

[0013] Figure 4 The diagram is a cross-sectional structural diagram of an integrated gas-liquid feeding mechanism for sewage treatment.

[0014] Figure 5 This is a partial cross-sectional structural schematic diagram of an integrated gas-liquid feeding mechanism for sewage treatment.

[0015] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of A in the figure.

[0016] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of B.

[0017] Figure 8 This is a schematic diagram of the partial structure of the air inlet in an integrated gas-liquid feeding mechanism for sewage treatment.

[0018] Figure 9 This is a schematic diagram of the partial structure of the air outlet in an integrated gas-liquid feeding mechanism for sewage treatment.

[0019] Among them: gas-liquid feeding mechanism box 10, end cover 11, connecting column 12, output shaft 13, transmission belt 14, control panel 15, liquid inlet 16, liquid outlet 17, air inlet 18, air outlet 19, gas piston chamber I 20, gas piston chamber II 21, liquid piston chamber I 22, liquid piston chamber II 23, inverted sealing baffle 24, swing shaft 25, outward sealing baffle 26, servo motor 27, drive shaft 28, driving gear 29, driven ring gear 30, transmission rod 31, rod shaft 32, end swing rod I 33, cross swing rod 34, end swing rod II 35, connecting shaft 36, swing warehouse 37, arc-shaped swing slide 38, rolling ball 39, electric telescopic rod 40, connecting rod 41, swing ball I 42, swing ball groove 43, piston block 44, groove 45, swing ball II 46. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0024] See also Figure 1-Figure 5 , an integrated gas-liquid feeding mechanism for sewage treatment, including a gas-liquid feeding mechanism box 10, the gas-liquid feeding mechanism box 10 is configured as a dumbbell-shaped structure symmetrical on both sides, and circular end covers 11 are symmetrically installed at both ends. The columnar area in the middle of the gas-liquid feeding mechanism box 10 is configured as a pressure inlet and outlet section, which is used to transfer the gas and liquid to be fed and input them into the sewage treatment device to be added. The spherical areas at both ends of the gas-liquid feeding mechanism box 10 are configured as swing drive sections, which are used to control the cyclic operation of the pressure inlet and outlet sections; A gas transfer bin and a liquid transfer bin are symmetrically provided on both sides of the pressure inlet and outlet section, a spherical swing bin 37 is provided inside the swing drive section, and both ends of the gas transfer bin and the liquid transfer bin are connected to the corresponding swing bin 37 respectively. A two-way power component is also provided in the middle of the inner side of the pressure inlet and outlet section, and both ends of the two-way power component extend to the swing bin 37 respectively and are connected to the circulating swing parts inside the swing bin 37, that is, the two-way power component rotates, synchronously driving the circulating swing parts at both ends to rotate, the gas transfer bin is separated by gas piston chamber I 20 and gas piston chamber II 21 on both sides, and the liquid transfer bin is separated by liquid piston chamber I 22 and liquid piston chamber II 23 on both sides, gas piston chamber I 20, gas piston chamber II 21, The liquid piston chamber I 22 and the liquid piston chamber II 23 are both slidably connected with piston blocks 44. The side of the piston block 44 facing the inside of the swing bin 37 is swingably connected to the circulating swing member placed inside the swing bin 37 through an adjustable connecting piece. That is, when the circulating swing member swings back and forth, the adjustable connecting piece controls the piston block 44 to circulate back and forth inside the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23. At the same time, inlet and outlet holes are opened on the side walls of the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23, so that gas and liquid feeding of the four chambers can be carried out simultaneously under the drive of a single set of bidirectional power components. At the same time, under the back-and-forth swinging of the two sides of the circulating swinging part, the reverse flow of the material in and out of the gas transfer chamber and the liquid transfer chamber is controlled, that is, when the gas transfer chamber is intaken, the liquid in the liquid transfer chamber is discharged, and vice versa. Under the control of the adjustable connecting part, according to the feeding requirements of the gas and liquid, on the premise that the two-way power component is not stopped, the piston block 44 can be adjusted to the initial height in the corresponding cavity, thereby realizing selective control of the material in and out of each chamber, and further improving the controllability and efficiency of the operation of the feeding mechanism.

[0025] In the embodiment of the present invention, a control panel 15 is installed on the outer wall of the gas-liquid feeding mechanism box 10. The control panel 15 has a built-in control system. By operating the control panel 15 in conjunction with the built-in control system, the operation of the bidirectional power component and the adjustable connector is controlled to achieve unified or selective transmission and transfer of gas and liquid. The piston block 44 is in sliding and sealing contact with the inner walls of the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23. When the piston block 44 is raised and lowered, a continuously changing pressure and adsorption force are generated inside the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23, thereby simulating the operation of a piston pump. The inlet and outlet holes include an air inlet hole 18 and an air outlet hole 19 provided on the side walls of the gas piston chamber I 20 and the gas piston chamber II 21, and a liquid inlet hole 16 and a liquid outlet hole 17 provided on the side walls of the liquid piston chamber I 22 and the liquid piston chamber II 23. When the piston block 44 moves back and forth along the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22 and the liquid piston chamber II 23, the pressure change between the piston block 44 and the bottom of the cavity is adjusted, thereby controlling the external gas and liquid to be adsorbed and input along the air inlet hole 18 and the liquid inlet hole 16, and then compressing the inhaled gas and liquid to be output along the liquid outlet hole 17 and the air outlet hole 19; Specifically, the liquid inlet 16 and the air inlet 18, the liquid outlet 17 and the air outlet 19 have the same internal structure. Figure 8 As shown, a group of inverted sealing baffles 24 are elastically swiveled inside the liquid inlet hole 16 and the air inlet hole 18 via a swing shaft 25. When the inverted sealing baffles 24 are in a free state, their inner sides are controlled to be in sealing contact with the transmission channels of the liquid inlet hole 16 and the air inlet hole 18 to close them. Then, when subjected to an inward adsorption force, the inverted sealing baffles 24 are inverted. At this time, the transmission channels of the liquid inlet hole 16 and the air inlet hole 18 are opened, and the external liquid and gas are input into the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23, thus realizing automatic input. like Figure 9 As shown, the liquid outlet 17 and the air outlet 19 are elastically swung by a swing shaft 25 to form a set of outward-turning sealing baffles 26. When the outward-turning sealing baffles 26 are in a free state, their inner sides are controlled to be in sealing contact with the liquid outlet 17 and the air outlet 19 transmission channels to close them. Then, when they are subjected to outward pressure, the outward-turning sealing baffles 26 are turned outward, and the liquid outlet 17 and the air outlet 19 transmission channels are opened. Then, the sucked liquid and gas are discharged outward along the transmission channels. This cycle is repeated to achieve continuous transmission and feeding of gas and liquid. The outer ends of the liquid inlet 16 and the air inlet 18 are connected to the liquid and gas sources to be added, and the outer ends of the liquid outlet 17 and the air outlet 19 are connected to the liquid and gas device structure to be received in the sewage treatment process through a transmission pipe, and then under the transmission of the gas-liquid feeding mechanism box 10, a high-efficiency and selective gas and liquid feeding operation mode is realized.

[0026] In one embodiment of the present invention, a plurality of connecting columns 12 are evenly installed on the end wall of the end cover 11, that is, the end cover 11 is connected to the various treatment boxes (pretreatment, biological treatment box or deep treatment box, etc.) in the sewage treatment device by using the connecting columns 12. The connecting columns 12 in the figure are only partial portions shown, and the specific length, size and shape can be determined according to actual installation requirements. They are not described in detail here, nor are they limited thereto. Among them, for the input gas and liquid, reference can be made to the types and added contents required for different sewage treatment stages described in the background technology. At the same time, the length and type of the transmission pipeline between the liquid outlet 17, the air outlet 19 and the sewage treatment device to be input can be determined according to the requirements of the actual connection distribution. They can all be implemented with conventional structures and existing technologies, and are not described or limited here.

[0027] As a preferred embodiment of the present invention, Figure 4 、 Figure 5 、 Figure 7 As shown, the bidirectional power assembly includes a transmission rod 31 rotatably arranged in the middle of the inner side of the pressure inlet and outlet section, and rod shafts 32 are symmetrically installed at both ends of the transmission rod 31. The ends of the rod shafts 32 are connected to the circulating swinging parts. A group of driven gear rings 30 are installed in the middle of the transmission rod 31. A power compartment is opened on the inner wall of the gas-liquid feeding mechanism box 10 on one side of the driven gear ring 30. A servo motor 27 is fixedly installed on one side of the power compartment. The output end of the servo motor 27 is connected to the drive shaft 28. A driving gear 29 is installed at the end of the drive shaft 28. One side of the driving gear 29 is engaged with the driven gear ring 30. That is, by starting the servo motor 27 to drive the drive shaft 28 to rotate, the driving gear 29 is controlled to drive the driven gear ring 30 to rotate, thereby driving the transmission rod 31 to rotate; Specifically, sealing plates are installed at the positions where both ends of the transmission rod 31 extend to the interior of the swing bin 37, which are used to keep the transmission rod 31 in the middle of the pressure inlet and outlet section and rotate stably while maintaining a seal between the swing bin 37 and the periphery of the transmission rod 31; like Figure 4-Figure 6 As shown, the cyclic swing member includes a cross swing rod 34 that is cyclically oscillating and distributed in the middle of the swing bin 37. The vertical ends of the cross swing rod 34 are respectively rotatably connected to the end swing rod I 33 and the end swing rod II 35. The end swing rod I 33 and the end swing rod II 35 are tilted and parallel to each other. The end of the end swing rod I 33 away from the cross swing rod 34 is connected to the rod shaft 32, and the end of the end swing rod II 35 away from the cross swing rod 34 is connected to a connecting shaft 36 that is rotatably set at the center of the end of the gas-liquid feeding mechanism box 10. The other two ends of the cross swing rod 34 are connected to rolling balls 39, and the rolling balls 39 are connected to the ends of the gas-liquid feeding mechanism box 10. An arc-shaped swing rail 38 is provided on the inner wall of the corresponding swing bin 37. When the transmission rod 31 rotates, the rod shafts 32 at both ends are controlled to drive the corresponding end swing rods I 33 to swing. Then, under the connection of the cross swing rod 34, the balls 39 at both ends of each group of cross swing rods 34 are controlled to swing back and forth along the corresponding arc-shaped swing rail 38. At the same time, the piston block 44 is swingably connected to the side wall of the cross swing rod 34 at the corresponding position of the opening of the piston block 44 through an adjustable connecting piece. Then, under the back-and-forth movement of the balls 39, the piston block 44 is driven to move back and forth in the corresponding chamber, realizing a cyclic change in pressure. Specifically, the adjustable connecting member includes an electric telescopic rod 40 located between the cross swing rod 34 and the piston block 44. Both ends of the electric telescopic rod 40 are connected to a connecting rod 41. Both ends of the connecting rod 41 are connected to a swing ball I 42 and a swing ball II 46. A swing ball groove 43 is provided in the side wall of the cross swing rod 34 corresponding to the swing ball I 42, and a groove 45 is provided inside the piston block 44 corresponding to the swing ball II 46. A swing ball groove 43 is also provided in the middle of the groove 45. The swing balls I 42 at both ends are connected to the corresponding swing ball grooves 43 in a limited rolling manner, that is, between the swing ball I 42 and the electric telescopic rod 40, a swing ball groove 43 is provided. Under the connection of the dynamic telescopic rod 40 and the connecting rod 41, when the cross swing arm 34 swings, the control piston block 44 is placed in its corresponding cavity for circular movement, and then according to the demand for material inflow and outflow in the gas piston cavity I20, the gas piston cavity II21, the liquid piston cavity I22, and the liquid piston cavity II23, the length of the electric telescopic rod 40 in the corresponding cavity is adjusted to adjust the initial height of the piston block 44 at the bottom of the cavity, thereby controlling the pressure change amplitude between the piston block 44 and the bottom of the cavity, and then controlling the entry and output of external gas and liquid to achieve selective feeding.

[0028] As a preferred embodiment of the present invention, the outer end of the connecting shaft 36 extends to the outside of the end cover 11 and is connected to the output shaft 13. A pulley is installed on the output shaft 13, and the pulley can be connected to an external transmission rod and other structures through a transmission belt 14, thereby further expanding the utilization of the rotational power of the servo motor 27. Among them, for the sewage treatment process, it is necessary to stir and mix the sewage in the treatment process at different stages. Therefore, the kinetic energy transmitted by the connecting shaft 36 can be expanded to the stirring stage, thereby further improving the energy utilization rate of the feeding mechanism, reducing the use cost and increasing the operating efficiency.

[0029] The working principle of the present invention is: in the idle space of the device, all the driving parts mentioned above, which refer to the power elements, electrical components and the adapted power supply, are connected through wires, and the electrical connections between the electrical components are completed in sequence. The detailed connection means are well known in the art. The following mainly introduces the working principle and process, and does not explain the electrical control. Power start: The servo motor 27 drives the driving gear 29, which drives the driven ring gear 30 and the transmission rod 31 to rotate.

[0030] Swing transmission: The transmission rod 31 pushes the end swing rod I 33 through the rod shaft 32, driving the cross swing rod 34 to swing back and forth in the swing bin 37, and the rolling ball 39 rolls along the arc-shaped swing slide 38 to ensure the swing stability.

[0031] Piston motion: The cross swing arm 34 drives the piston block 44 to move back and forth in the piston cavity through the electric telescopic rod 40 and the connecting rod 41; Inhalation stage: When the piston block 44 moves away from the bottom of the cavity, the negative pressure in the cavity opens the inverted sealing baffle 24, and the gas / liquid is sucked in through the feed hole; Exhaust / liquid stage: When the piston block 44 presses toward the bottom of the cavity, the positive pressure in the cavity causes the outward-turning sealing baffle 26 to open, and the gas / liquid is discharged through the discharge hole.

[0032] Selective control: The initial position of the piston block 44 is adjusted by the electric telescopic rod 40: When extended, the piston stroke increases and the feed amount increases; When it is retracted to the limit, the piston block is fixed and the chamber stops feeding.

[0033] It should be understood that in the present application, the rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slipping or wear, and their exteriors are all provided with corresponding protective shells. However, in the drawings of the present application, in order to clearly indicate the connection status of the moving parts, they are not shown. It can also be understood that each component in the present application is made of metal or plastic material with adaptable strength in the field to which it belongs to ensure that its structural rigidity meets actual needs.

[0034] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An integrated gas-liquid feeding mechanism for sewage treatment, characterized in that: include A dumbbell-shaped gas-liquid feeding mechanism box (10) has a pressure feeding and discharging section in the middle and swing driving sections at both ends. End covers (11) of a circular structure are symmetrically installed at both ends of the dumbbell-shaped gas-liquid feeding mechanism box (10); The pressure inlet and outlet section is provided with a gas transfer chamber and a liquid transfer chamber symmetrically on both sides thereof, and a spherical swing chamber (37) is provided inside the swing drive section. The two ends of the gas transfer chamber and the liquid transfer chamber are respectively connected to the corresponding swing chamber (37). A bidirectional power assembly is also provided in the middle of the inner side of the pressure inlet and outlet section. The two ends of the bidirectional power assembly extend to the swing chamber (37) and are connected to the circulating swing member inside the swing chamber (37). The gas transfer chamber is divided into a gas piston chamber I (20) and a gas piston chamber II (21) on both sides thereof. The liquid transfer chamber is provided with a bidirectional power assembly. The liquid piston chamber I (22) and the liquid piston chamber II (23) are separated. The gas piston chamber I (20), the gas piston chamber II (21), the liquid piston chamber I (22), and the liquid piston chamber II (23) are all slidably connected with piston blocks (44). The side of the piston block (44) facing the inside of the swing bin (37) is swingably connected to a circulating swing member disposed inside the swing bin (37) through an adjustable connecting member. Inlet and outlet holes are opened on the side walls of the gas piston chamber I (20), the gas piston chamber II (21), the liquid piston chamber I (22), and the liquid piston chamber II (23).

2. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 1, characterized in that: The inlet and outlet holes include an air inlet hole (18) and an air outlet hole (19) provided on the side walls of the gas piston chamber I (20) and the gas piston chamber II (21), and a liquid inlet hole (16) and a liquid outlet hole (17) provided on the side walls of the liquid piston chamber I (22) and the liquid piston chamber II (23).

3. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 2, characterized in that: The liquid inlet (16) and the air inlet (18), the liquid outlet (17) and the air outlet (19) have the same internal structure. A group of inverted sealing baffles (24) are elastically swingably connected to the inside of the liquid inlet (16) and the air inlet (18) via a swing shaft (25). When the inverted sealing baffles (24) are in a free state, the inner sides thereof are controlled to be in sealing contact with the transmission channels of the liquid inlet (16) and the air inlet (18).

4. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 2, characterized in that: A group of outward-turned sealing baffles (26) are elastically swingably connected to the inside of the liquid outlet (17) and the air outlet (19) via a swing shaft (25). When the outward-turned sealing baffles (26) are in a free state, the inner sides thereof are controlled to be in sealing contact with the transmission channels of the liquid outlet (17) and the air outlet (19).

5. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 1, characterized in that: The end wall of the end cover (11) is evenly mounted with a plurality of connecting columns (12), that is, the end cover (11) is connected to each level of treatment boxes in the sewage treatment device by using the connecting columns (12).

6. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 1, characterized in that: The bidirectional power assembly includes a transmission rod (31) rotatably arranged in the middle of the inner side of the pressure feed and discharge section, a rod shaft (32) is symmetrically installed at both ends of the transmission rod (31), and the end of the rod shaft (32) is connected to the cyclic swing member. A group of driven gear rings (30) are installed in the middle of the transmission rod (31), and a power compartment is opened on the inner wall of the gas-liquid feeding mechanism box (10) on one side of the driven gear ring (30). A servo motor (27) is fixedly installed on one side of the power compartment. The output end of the servo motor (27) is connected to a drive shaft (28), and a driving gear (29) is installed at the end of the drive shaft (28). One side of the driving gear (29) is meshed with the driven gear ring (30).

7. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 1, characterized in that: The cyclic swing member includes a cross swing rod (34) that cyclically swings and is distributed in the middle of the swing bin (37). The vertical ends of the cross swing rod (34) are respectively rotatably connected to an end swing rod I (33) and an end swing rod II (35). The end swing rod I (33) and the end swing rod II (35) are tilted and arranged in parallel. The end of the end swing rod I (33) away from the cross swing rod (34) is connected to the rod shaft (32). The end of the end swing rod II (35) away from the cross swing rod (34) is connected to a connecting shaft (36) rotatably arranged at the center of the end of the gas-liquid feeding mechanism box (10). The other two ends of the cross swing rod (34) are connected to rolling balls (39). An arc-shaped swing slide rail (38) is opened on the inner wall of the swing bin (37) corresponding to the rolling ball (39). The piston block (44) is rotatably connected to the side wall of the cross swing rod (34) at the corresponding position of the opening of the piston block (44) through an adjustable connecting member.

8. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 7, characterized in that: The adjustable connecting member includes an electric telescopic rod (40) located between a cross swing rod (34) and a piston block (44), both ends of the electric telescopic rod (40) are connected to a connecting rod (41), and both ends of the connecting rod (41) are respectively connected to a swing ball I (42) and a swing ball II (46), a swing ball groove (43) is provided in the side wall of the cross swing rod (34) corresponding to the swing ball I (42), a groove (45) is provided inside the piston block (44) corresponding to the swing ball II (46), and a swing ball groove (43) is also provided in the middle of the groove (45), and the swing balls I (42) at both ends are connected to the corresponding swing ball grooves (43) in a limited rolling manner.

9. The integrated gas-liquid feeding mechanism for sewage treatment according to claim 8, characterized in that: The outer end of the connecting shaft (36) extends to the outside of the end cover (11) and is connected to an output shaft (13). A pulley is mounted on the output shaft (13), and the pulley can be connected to an external transmission rod structure via a transmission belt (14).

Images