Sewage treatment equipment and method

Abstract

The present invention relates to the technical field of sewage treatment equipment, and discloses a sewage treatment equipment and method, the sewage treatment equipment having a first direction and a second direction that intersect each other perpendicularly, including a treatment tank and an aeration system; the aeration system includes a driving mechanism, an aeration pipeline, an air intake pipe, a driving pipe section, a plurality of driven pipe sections, and a plurality of sealing rings; the other end of the air intake pipe extends to the outside of the treatment tank and is connected to an air source; one end of the driving pipe section is connected to the output end of the driving mechanism, and the other end is connected to a driving bevel gear, and both ends of the driven pipe section are connected to driven bevel gears; the wall of the driven pipe section is provided with air holes of different apertures at intervals around the axial direction, and the wall of the aeration pipeline is provided with nozzles corresponding to the air holes. The beneficial effects of the present invention: the aeration amount of the aeration system can be accurately adjusted, and the aeration efficiency can be improved while reducing energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and in particular to sewage treatment equipment and method. Background Art

[0002] Aerobic treatment refers to the biochemical process of degrading organic matter and converting it into humus-like substances under the conditions of suitable carbon-nitrogen ratio, water content and oxygen with the participation of microorganisms. Aerobic treatment technology is considered to be an effective method for organic solid waste treatment because it can achieve the treatment goals of solid waste reduction, harmlessness and resource utilization.

[0003] The sewage treatment equipment in the prior art is generally provided with an aeration pipe, and biological fillers are provided in the sewage treatment equipment for aerobic reaction of microorganisms to discharge and treat pollutants in the sewage. Since it is particularly important to control the aeration amount of oxygen in the aerobic reaction, in the prior art, the aeration amount of the aeration pipe is not easy to adjust, too large aeration amount will increase energy consumption, and too small aeration amount will reduce the degradation efficiency of the biofilm on pollutants. Summary of the invention

[0004] The purpose of the present invention is to provide a sewage treatment device and method, which can accurately adjust the aeration volume of the aeration system, improve the aeration efficiency and reduce energy consumption.

[0005] In order to achieve the above-mentioned object, the present invention provides a sewage treatment device having a first direction and a second direction perpendicularly intersecting each other, including a treatment tank and an aeration system;

[0006] The aeration system includes a driving mechanism, an aeration pipeline, an air inlet pipe, a driving pipe section, a plurality of driven pipe sections, and a plurality of sealing rings;

[0007] The driving mechanism is arranged outside the treatment tank, and the output end extends into the aeration pipe; the aeration pipe is arranged inside the treatment tank and is connected with one end of the air inlet pipe, and the other end of the air inlet pipe extends outside the treatment tank and is connected with the air source; the driving pipe section and the plurality of driven pipe sections are arranged inside the aeration pipe and are connected with the aeration pipe, and the driving pipe section and the plurality of driven pipe sections are rotatably connected;

[0008] One end of the driving pipe section is connected to the output end of the driving mechanism, and the other end is connected to a driving bevel gear. A plurality of driven pipe sections are arranged at intervals in the first direction and the second direction. Both ends of the driven pipe section are connected to driven bevel gears. The driven bevel gear of at least one driven pipe section extending along the first direction is meshed with the driving bevel gear, and the driven bevel gear of at least one driven pipe section extending along the second direction is meshed with the driving bevel gear. The driven bevel gears of adjacent driven pipe sections are meshed. Air holes of different apertures are arranged at intervals around the axial direction on the pipe wall of the driven pipe section. The outer wall of the driven pipe section is sleeved with the sealing ring. The outer wall of the sealing ring is abutted against the inner wall of the aeration pipe. A through hole coaxial with the air hole is provided on the sealing ring. A nozzle corresponding to the air hole is provided on the pipe wall of the aeration pipe.

[0009] Wherein, the driving mechanism drives the driving pipe segment to rotate, and the plurality of driven pipe segments rotate synchronously, so as to adjust the size of the air holes corresponding to the driven pipe segments and the nozzles.

[0010] Furthermore, a first connecting ring and a second connecting ring are axially provided at both ends of the driven pipe section, a bearing is provided on an outer sleeve of the first connecting ring for rotationally connecting with the aeration pipe, and the driven bevel gear is provided on an outer sleeve of the second connecting ring. Annular grooves for installing the sealing ring are provided at intervals along the axial direction on the outer wall of the driven pipe section.

[0011] Furthermore, it also includes a lifting mechanism, a frame, a mounting frame and biological fillers; the output end of the lifting mechanism is connected to the frame, the frame is arranged in the processing tank, the frame is provided with a plurality of placement areas at intervals along the first direction and the second direction, the mounting frame is arranged in the placement area, a plurality of cavities are arranged at intervals along the vertical direction in the mounting frame, and each of the cavities is provided with a biological filler.

[0012] Furthermore, the treatment tank includes a tank body, a cover body, a first partition, and a second partition body, the top of the tank body is detachably connected to the cover body, the first partition body and the second partition body are spaced apart in the tank body along the first direction, and the inside of the tank body is divided into a first cavity, a second cavity and a third cavity; the outer wall of the tank body is provided with a water inlet connected to the first cavity, the top of the first partition body is provided with a first port for connecting the first cavity and the second cavity, the top of the second partition body is provided with a second port for connecting the second cavity and the third cavity, and the outer wall of the tank body is provided with a water outlet connected to the third cavity;

[0013] The sewage flows from the first cavity through the water inlet to the second cavity to undergo an aerobic reaction, and the sewage in the second cavity becomes clean water after the aerobic reaction. The third cavity is used to store the clean water.

[0014] Furthermore, the lifting mechanism includes a lifting motor and an electromagnet, the lifting motor is fixedly arranged on the cover body, and the output end of the lifting motor extends into the tank body and is connected to the electromagnet, the frame body is connected to a magnetic element corresponding to the electromagnet, the first partition plate and the second partition plate are provided with a support frame and an elastic support seat at intervals along the second direction on two opposite side surfaces, the frame body is arranged above the support frame, the elastic support seat is arranged on the top of the support frame, and the top periphery of the frame body is provided with a support portion corresponding to the elastic support seat;

[0015] The lifting motor drives the frame to rise to a specified position in the vertical direction through the electromagnet, the support part presses the elastic support to shrink one end facing away from the frame, the support part moves to above the elastic support, and the elastic support resets to support the support part.

[0016] Furthermore, the elastic support includes a seat body, a spring, a support member and a limit screw, the seat body is provided with a limit slot along the first direction on one side surface of the frame body, the spring is arranged in the limit slot, one end of the support member is arranged in the limit slot, and the other end extends outside the limit slot, one end of the spring is against the end surface of the limit slot, and the other end is against the support member, the spring has a tendency to push the support member to move close to the frame body, the top of the seat body is provided with a strip slot, the length direction of the strip slot is arranged along the first direction, the limit screw is arranged along the vertical direction, and the end portion passes through the strip slot and is threadedly connected to the support member, the support member is provided with a first guide inclined surface toward one side of the frame body, the top to the bottom of the first guide inclined surface is inclined downwardly along the direction away from the frame body, and the support part is provided with a second guide inclined surface corresponding to the first guide inclined surface toward the side of the seat body, and the inclination direction of the second guide inclined surface is the same as the inclination direction of the first guide inclined surface.

[0017] Furthermore, the angle α between the first guiding inclined surface and the vertical direction is 30°-60°.

[0018] Furthermore, the support frame is provided with a guide groove arranged along the vertical direction.

[0019] Furthermore, it also includes an insertion rod, one side of the cavity is provided with an opening for taking and placing the biological filler, the opening is provided with the insertion rod extending in the vertical direction, and the top to the bottom of the mounting frame are provided with a socket corresponding to the insertion rod.

[0020] Furthermore, the biological filler includes a first shell, a second shell and a spring latch, the first shell and the second shell are arranged opposite to each other and cooperate to form a spherical cavity, a positioning protrusion is provided on the end surface opposite to the second shell, the second shell is provided with a positioning groove corresponding to the positioning protrusion, the positioning protrusion and the positioning groove are provided with a coaxial through hole, and the spring latch is inserted in the through hole.

[0021] Furthermore, the diameters of the air holes decrease or increase in sequence along the circumference of the driven pipe section.

[0022] Furthermore, a mounting seat is provided on the top of the tank body, the driving mechanism is a forward and reverse motor, the output end of the forward and reverse motor is connected to the driving pipe section, the side wall of the driving pipe section is provided with an air inlet hole, the side wall of the mounting seat is connected to the air inlet pipe, one end of the air inlet pipe extends into the aeration pipe and is connected to the air inlet hole, the gas is transported to the driven pipe section through the air inlet pipe and the driving pipe section, and is ejected from the nozzle through the air hole.

[0023] Furthermore, the number of the driven pipe segments is at least 4.

[0024] Furthermore, at least one of a biosensor, a dissolved oxygen sensor and an ORP sensor is disposed in the treatment tank.

[0025] The present invention also provides a sewage treatment method, based on any of the above-mentioned sewage treatment equipment, comprising the following steps:

[0026] S1. Obtaining the dissolved oxygen content, oxidation-reduction potential or BOD value in the treatment tank;

[0027] S2. Adjust the pore size corresponding to the nozzle according to the dissolved oxygen content, the redox potential or the BOD value.

[0028] Compared with the prior art, the sewage treatment equipment and method according to the embodiment of the present invention has the following beneficial effects: the aeration system includes a driving mechanism, an aeration pipeline, an air inlet pipe, a driving pipe section, a plurality of driven pipe sections, and a plurality of sealing rings; the aeration pipeline is arranged in the treatment tank and is connected to one end of the air inlet pipe, and the other end of the air inlet pipe extends to the outside of the treatment tank and is connected to the air source; the driving pipe section and the plurality of driven pipe sections are arranged in the aeration pipeline and are connected to the aeration pipeline, and the driving pipe section and the plurality of driven pipe sections are rotatably connected; one end of the driving pipe section is connected to the output end of the driving mechanism; The other end is connected to the driven bevel gear of the driven pipe section, and the adjacent driven pipe sections are connected through the driven bevel gear. The pipe wall of the driven pipe section is arranged with air holes of different apertures at intervals around the axial direction, and the pipe wall of the aeration pipeline is provided with nozzles corresponding to the air holes. When the aeration volume needs to be adjusted, the driving mechanism drives the driving pipe section to rotate, and then drives multiple driven pipe sections to rotate synchronously, and at the same time adjusts the size of the air holes corresponding to each driven pipe section and the nozzle, and accurately adjusts the aeration volume of the nozzle, thereby improving the aeration efficiency and reducing energy consumption. In addition, a sealing ring is provided on the outer wall of the driven pipe section, and the sealing ring is provided with a through hole coaxial with the air hole to ensure the sealing effect when the air holes of different apertures are connected to the nozzle, thereby improving the control accuracy of the aeration volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a sewage treatment device according to an embodiment of the present invention;

[0030] Figure 2 It is a schematic structural diagram of a tank body of a sewage treatment device according to an embodiment of the present invention;

[0031] Figure 3 is a cross-sectional view of a sewage treatment device according to an embodiment of the present invention;

[0032] Figure 4 It is a schematic structural diagram of the frame rise of the sewage treatment equipment according to an embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the internal structure of a tank body of a sewage treatment device according to an embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the structure of an aeration pipeline of a sewage treatment equipment according to an embodiment of the present invention;

[0035] Figure 7 is a schematic diagram of the connection of an aeration pipeline of a sewage treatment equipment according to an embodiment of the present invention;

[0036] Figure 8 is a schematic structural diagram of a driven pipe section of a sewage treatment device according to an embodiment of the present invention;

[0037] Fig. 9 It is a schematic diagram of the installation of the driven pipe section of the sewage treatment equipment according to the embodiment of the present invention;

[0038] Fig.10 It is a schematic diagram of the installation of the frame of the sewage treatment equipment according to the embodiment of the present invention;

[0039] Fig.11 It is a structural schematic diagram of a frame of a sewage treatment device according to an embodiment of the present invention;

[0040] Fig.12 is a schematic structural diagram of a mounting frame of a sewage treatment device according to an embodiment of the present invention;

[0041] Fig.13 Schematic diagram of the structure of the biological filler of the sewage treatment equipment according to the embodiment of the present invention;

[0042] Fig.14 is a cross-sectional view of the sewage treatment equipment according to the embodiment of the present invention from another perspective;

[0043] Fig.15 yes Fig.14 A partial enlarged view of the middle A;

[0044] Fig.16 It is a cross-sectional view of an elastic support of a sewage treatment device according to an embodiment of the present invention.

[0045] In the figure, 1, treatment tank; 11, tank body; 111, mounting seat; 12, cover body; 13, first partition; 131, first port; 14, second partition; 141, second port; 15, water inlet; 16, water outlet; 17, sewage outlet; 100, first cavity; 101, second cavity; 102, third cavity;

[0046] 2. Aeration system;

[0047] 21. driving mechanism; 22. aeration pipeline; 221. nozzle; 23. air inlet pipe; 24. driving pipe section; 241. air inlet hole; 25. driven pipe section; 251. air hole; 252. first connecting ring; 253. second connecting ring; 254. annular groove; 26. sealing ring; 261. through hole; 27. driving bevel gear; 28. driven bevel gear;

[0048] 3. Waterproof and breathable membrane;

[0049] 4. Lifting mechanism; 41. Lifting motor; 42. Electromagnet;

[0050] 5. frame; 51. placement area; 52. support portion; 521. second guide slope;

[0051] 6. mounting frame; 61. cavity; 62. insertion rod; 63. handle;

[0052] 7. biological filler; 71. first shell; 711. positioning protrusion; 72. second shell; 721. positioning groove; 73. spring latch;

[0053] 8. Support frame; 81. Guide groove;

[0054] 9. elastic support; 91. seat body; 911. limiting groove; 912. strip groove; 92. spring; 93. support member; 931. first guide inclined surface; 94. limiting screw;

[0055] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0056] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0057] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred devices and elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the present invention, it should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0059] like Figures 1 to 16 As shown, a sewage treatment device of a preferred embodiment of the present invention is mainly used for aerobic reactions in sewage treatment, which has a first direction X and a second direction Y that intersect each other perpendicularly, includes a treatment tank 1 and an aeration system 2. For the sake of convenience of explanation, the length direction of the treatment tank 1 is defined as the first direction X, and the width direction of the treatment tank 1 is defined as the second direction Y.

[0060] Specifically, see Figures 1 to 9 as well as Fig.14 , Fig.15The aeration system 2 includes a driving mechanism 21, an aeration pipe 22, an air inlet pipe 23, a driving pipe section 24, a plurality of driven pipe sections 25, and a plurality of sealing rings 26. In order to prevent the sewage in the treatment tank 1 from affecting the normal operation of the driving mechanism 21, the driving mechanism 21 is arranged outside the treatment tank 1, and the output end extends into the aeration pipe 22. The aeration pipe 22 is arranged in the treatment tank 1 and is fixedly connected to the treatment tank 1. The aeration pipe 22 is spliced ​​by a plurality of pipe units, and two-way or three-way joints are connected between the pipe units. In order to facilitate the air supply to the aeration pipe 22, the aeration pipe 22 is connected to one end of the air inlet pipe 23, and the other end of the air inlet pipe 23 extends to the outside of the treatment tank 1 and is connected to the air source. In order to facilitate the arrangement of the driving pipe section 24 and the driven pipe section 25, the driving pipe section 24 and the plurality of driven pipe sections 25 are arranged in the aeration pipe 22 and are connected to the aeration pipe 22. The driving pipe section 24 and the plurality of driven pipe sections 25 are rotatably connected.

[0061] See also Fig.14 , Fig.15 One end of the driving pipe section 24 is connected to the output end of the driving mechanism 21, and the other end is connected to the driving bevel gear 27. A plurality of driven pipe sections 25 are arranged at intervals in the first direction X and the second direction Y. Both ends of the driven pipe sections 25 are connected to driven bevel gears 28. The driven bevel gear 28 of at least one driven pipe section 25 is meshed with the driving bevel gear 27. Figure 6 , Figure 7 As shown, the number of driven pipe sections 25 can be arranged according to actual aeration requirements. The driven bevel gears 28 of adjacent driven pipe sections 25 are meshed, and the pipe wall of the driven pipe section 25 is provided with air holes 251 of different apertures arranged at intervals around the axial direction. The outer wall of the driven pipe section 25 is sleeved with a sealing ring 26, and the outer wall of the sealing ring 26 is set against the inner wall of the aeration pipe 22. The sealing ring 26 is provided with a through hole 261 coaxial with the air hole 251, and the pipe wall of the aeration pipe 22 is provided with a nozzle 221 corresponding to the air hole 251; when the aeration amount in the treatment tank 1 needs to be adjusted, During adjustment, the driving mechanism 21 drives the driving pipe section 24 to rotate, and the multiple driven pipe sections 25 rotate synchronously, and the sizes of the air holes 251 corresponding to the driven pipe section 25 and the nozzle 221 are adjusted to achieve precise adjustment of the aeration amount. The sealing ring 26 can not only ensure the sealing effect after the nozzle 221 and the air hole 251 are connected, but also separate each nozzle 221 to avoid the air intake between adjacent nozzles 221 affecting each other, so that the aeration amount at the nozzle 221 is more uniform. In the present invention, one nozzle 221 corresponds to multiple air holes 251, and the aperture size of each air hole 251 is different. In this embodiment, the aperture of the air hole 251 decreases or increases in sequence around the circumference of the driven pipe section 25.

[0062] In the prior art, the amount of air supplied to the air inlet pipe 23 by the air source is generally controlled to cause a pressure change in the aeration pipe 22, thereby changing the aeration amount at the nozzle, and the control response speed is relatively slow. In the present invention, the pressure in the aeration pipe 22 remains unchanged. When the aeration amount at the nozzle needs to be adjusted, the size of the air hole 251 corresponding to the nozzle is directly adjusted, so that the aeration amount can be quickly adjusted, the control response is fast, and the control accuracy is high.

[0063] Furthermore, in order to facilitate the rotational connection between the driven pipe section 25 and the aeration pipe 22, in this embodiment, Figure 6 As shown, the two ends of the driven pipe section 25 are axially provided with a first connecting ring 252 and a second connecting ring 253, wherein the first connecting ring 252 is provided with a bearing for rotationally connecting with the aeration pipe 22, and the second connecting ring 253 is provided with a driven bevel gear 28, and the driven bevel gear 28 is directly fixedly connected with the second connecting ring 253 by a locking screw. In order to facilitate the installation and positioning of the sealing ring 26, the outer wall of the driven pipe section 25 is provided with annular grooves 254 for installing the sealing ring 26 at intervals along the axial direction.

[0064] In the prior art, in order to prevent the sewage in the treatment tank 1 from flowing back into the aeration pipe 22, a hydrophobic material is generally sprayed at the nozzle. However, when the air supply is stopped, there is a pressure difference between the treatment tank 1 and the aeration pipe 22, and some relatively fine impurity particles will enter the aeration pipe 22 under the action of pressure, resulting in impurity particles adhering to the nozzle during subsequent air supply, affecting the aeration effect. Therefore, in this embodiment, the corresponding nozzle outside the aeration pipe 22 is covered with a waterproof breathable membrane 3, and the waterproof breathable membrane 3 is fixed to the outer wall of the aeration pipe 22 with an adhesive. In order to prevent the waterproof breathable membrane 3 from falling off, a clamp (not shown in the figure) can be set at both ends of the waterproof breathable membrane 3. The waterproof breathable membrane 3 can directly block the impurity particles, which not only prevents the sewage from flowing back, but also prevents the fine impurity particles from entering the aeration pipe 22, and the aeration structure is more stable.

[0065] When the aerobic reaction of the sewage treatment equipment proceeds to different stages, in order to facilitate the sampling and testing of the microbial community in the treatment tank 1, so as to obtain the aerobic microbial species that are beneficial to speeding up the sewage treatment, it is necessary to sample the biological filler 7 in the treatment tank 1. In the prior art, the biological fillers 7 are generally stacked in the treatment tank 1, and the distribution spacing between each biological filler 7 is uneven, resulting in large differences in the distribution of microorganisms on each biological filler 7, uneven aerobic reaction in the treatment tank 1, and at the same time, it is not conducive to sampling the biological fillers 7 in different areas of the treatment tank 1. Therefore, in the present invention, in order to facilitate the sampling of the biological fillers 7 and at the same time, make the biological fillers 7 evenly distributed and stabilize the aerobic reaction process in the treatment tank 1, the present invention also includes a lifting mechanism 4, a frame 5, a mounting frame 6 and biological fillers 7; refer to Figures 1 to 10, the output end of the lifting mechanism 4 is connected to a frame 5, which is arranged in the treatment tank 1. The frame 5 is provided with a plurality of placement areas 51 at intervals along the first direction X and the second direction Y. A mounting frame 6 is provided in the placement area 51. A plurality of cavities 61 are arranged at intervals along the vertical direction in the mounting frame 6, and a biological filler 7 is provided in each cavity 61. When it is necessary to sample the biological filler 7 in the treatment tank 1, the lifting mechanism 4 drives the frame 5 to rise, the treatment tank 1 is opened, the mounting frames 6 in different placement areas 51 are taken out, and the biological filler 7 in the mounting frame 6 is sampled. Since each biological filler 7 corresponds to a cavity 61, the aerobic reaction in various places in the treatment tank 1 can be kept uniform, which is more conducive to the study of the microbial community.

[0066] Further, in order to facilitate the segmented treatment of sewage, see Figure 3 The processing tank 1 includes a tank body 11, a cover body 12, a first partition 13, and a second partition 14, wherein the top of the tank body 11 is detachably connected to the cover body 12 to facilitate sampling of the biological filler 7. In some embodiments, the cover body 12 and the tank body 11 can be directly detachably connected by screws, or can be fixedly connected by screws after being hinged.

[0067] Specifically, the first partition 13 and the second partition 14 are arranged in the tank body 11 at intervals along the first direction X, and the interior of the tank body 11 is divided into a first cavity 100, a second cavity 101 and a third cavity 102; the outer wall of the tank body 11 is provided with a water inlet 15 connected with the first cavity 100, the top of the first partition 13 is provided with a first port 131 for connecting the first cavity 100 and the second cavity 101, the top of the second partition 14 is provided with a second port 141 for connecting the second cavity 101 and the third cavity 102, and the outer wall of the tank body 11 is provided with a water outlet 16 connected with the third cavity 102; wherein, sewage flows from the first cavity 100 through the water inlet 15 through the second cavity 101 to undergo an aerobic reaction, and the sewage in the second cavity 101 becomes clean water after the aerobic reaction, and the third cavity 102 is used to store clean water. In order to facilitate the use of the clean water, the clean water can be discharged from the water outlet 16. Furthermore, in order to facilitate the discharge of the precipitate after the aerobic reaction in the second cavity 101 , a sewage outlet 17 is provided below the second cavity 101 .

[0068] Furthermore, in some embodiments, in order to facilitate sampling of the biological filler 7, the lifting mechanism 4 includes a lifting motor 41 and an electromagnet 42, wherein the lifting motor 41 is fixed to the cover 12, and the output end extends to the tank 11 and is connected to the electromagnet 42, and the frame 5 is internally connected to a magnetic element corresponding to the electromagnet 42 (such as magnetic metal iron, cobalt, nickel, etc.), that is, when sampling is required, the electromagnet 42 is energized, and the lifting motor 41 drives the electromagnet to descend and engage with the frame 5, and then drives the frame 5 to rise. The outer wall of the frame 5 is provided with a coating that is waterproof and rust-proof. After rising to the specified position, in order to facilitate opening the cover 12, the frame 5 is supported, see Figure 5 , Fig.10 , Fig.16 , support frames 8 and elastic supports 9 are arranged at intervals along the second direction Y on the two opposite sides of the first partition 13 and the second partition 14, the frame 5 is arranged above the support frame 8, the elastic support 9 is arranged on the top of the support frame 8, and a support portion 52 corresponding to the elastic support 9 is arranged on the top circumference of the frame 5; when the lifting motor 41 drives the frame 5 to rise to the specified position in the vertical direction through the electromagnet 42, the support portion 52 presses the elastic support 9 to shrink at one end facing away from the frame 5, and the support portion 52 moves to the top of the elastic support 9, and the elastic support 9 is reset to support the support portion 52. At this time, the lifting motor 41 and the electromagnet 42 are powered off, and when the electromagnet 42 is powered off, the magnetic force between the frame 5 disappears. The frame 5 is supported by the elastic support 9, and the cover 12 can be opened to sample the biological filler 7. When there is no need to perform sampling operation, the output end of the lifting motor 41 can be in a retracted state to avoid contact with sewage and improve the overall service life of the lifting motor 41.

[0069] Furthermore, in order to facilitate the setting of the elastic support 9 and simplify the support structure, the elastic support 9 includes a seat body 91, a spring 92, a support member 93 and a limiting screw 94. Among them, the seat body 91 is used as a mounting carrier. In order to facilitate the installation and limiting of the spring 92 and the support member 93, a limiting groove 911 is provided on one side of the seat body 91 facing the frame body 5 along the first direction X. The spring 92 is arranged in the limiting groove 911. One end of the support member 93 is arranged in the limiting groove 911, and the other end extends outside the limiting groove 911 to support the support portion 52. One end of the spring 92 is abutted against the end surface of the limiting groove 911, and the other end is abutted against the support member 93. The spring 92 has a tendency to push the support member 93 to move closer to the frame body 5. In order to prevent the support member 93 from escaping from the limiting groove 911, a strip groove 912 is provided on the top of the seat body 91. The length direction of the strip groove 912 is arranged along the first direction X. The limiting screw 94 is arranged along the vertical direction, and the end thereof passes through the strip groove 912 and is threadedly connected to the support member 93. In the process of the frame body 5 rising, in order to prevent the support portion 52 from getting stuck when compressing the spring 92, a first guide slope 931 is provided on the side of the support member 93 facing the frame body 5. The first guide slope 931 is inclined downward from the top to the bottom in the direction away from the frame body 5. The support portion 52 is provided on the side of the seat body 91 with a second guide slope 521 corresponding to the first guide slope 931. The inclination direction of the second guide slope 521 is the same as that of the first guide slope 931. In some embodiments, in order to reduce the friction between the first guide slope 931 and the second guide slope 521, as shown in FIG. Fig.16 As shown, the angle α between the first guiding inclined surface 931 and the vertical direction is 30°-60°. In this embodiment, preferably, the angle α between the first guiding inclined surface 931 and the vertical direction is 45°.

[0070] During the rising process of the frame 5, the second guide slope 521 contacts the first guide slope 931, pushing the support member 93 to compress the spring 92. After the support portion 52 moves to the top of the support member 93, the support member 93 is reset under the elastic force of the spring 92, the electromagnet is powered off, and the lower end surface of the support portion 52 is in contact with the top surface of the support member 93, thereby achieving support for the frame 5, facilitating the subsequent opening of the cover 12 and sampling of the biological filler 7. Furthermore, in order to facilitate the movement and guidance of the frame in the vertical direction, a guide groove 81 arranged in the vertical direction is provided on the support frame 8, and the gap between the inner wall of the guide groove 81 and the outer wall of the frame 5 is less than or equal to 0.1 mm. When the frame 5 needs to be re-placed on the support frame 8, the frame 5 can be lifted and kept fixed in position by an external lifting mechanism. Adjust each support member 93 to slide in the limit groove 911 away from the frame 5, compress the spring 92, and open a threaded hole on the seat body 91. The limit screw 94 is inserted into the threaded hole to fix the position of the support member 93 to avoid collision between the support member 93 and the support part 52. Then, the connection between the lifting mechanism and the frame 5 is released, and the frame 5 slides downward along the limit groove 911. Due to the buoyancy of the sewage, the descending speed of the frame 5 is relatively slow, so the frame 5 can be replaced on the support frame 8, and then the cover body 12 can be installed.

[0071] In this embodiment, the outer shape of the frame 5 is a rectangular parallelepiped. In order to facilitate the oxygen supply to the biological fillers 7 at various locations in the frame 5, the aeration pipe 22 is provided with pipe sections extending along the first direction X and the second direction Y. The driven pipe sections 25 are inside the aeration pipe 22. The number of driven pipe sections is at least 4, that is, there are two driven pipe sections 25 in each of the first direction X and the second direction Y. In some other embodiments, the outer shape of the frame 5 can be set to a cylindrical shape or other shapes, and can be adaptively adjusted according to the internal structure of the treatment tank 1. The setting of the aeration pipe 22 needs to meet the oxygen supply of the biological fillers 7 at various locations in the frame 5. The extension direction of the aeration pipe 22 can be adjusted accordingly according to the outer shape of the frame 5.

[0072] In some embodiments, in order to facilitate the removal of the biological filler 7 from the mounting frame 6, an insertion rod 62 is also included, and an opening for taking in and placing the biological filler 7 is provided on one side of the cavity 61. Fig.12As shown, a plug rod 62 extending in the vertical direction is provided at the opening, and a socket corresponding to the plug rod 62 is provided from the top to the bottom of the mounting frame 6, that is, when it is necessary to sample the biological filler 7, the plug rod 62 is pulled out to open the opening and take out the biological filler 7. The number of the plug rods 62 can be set according to actual needs. In this embodiment, in order to improve the efficiency of taking and placing, the number of the plug rods 62 is 1, and the axis of the plug rod 62 is located on the middle plane of the mounting frame 6 set in the vertical direction. When it is necessary to place the biological filler 7 in the mounting frame 6, the biological filler 7 is placed in each cavity 61, and then the plug rod 62 is inserted, which can prevent the biological filler 7 from falling out of the cavity 61, and the placement is simple. In order to facilitate the removal of the mounting frame 6 from the placement area 51, a handle 63 is also provided on the top of the mounting frame 6.

[0073] Furthermore, in some embodiments, in order to improve the assembly efficiency of the biological filler, the biological filler 7 includes a first shell 71, a second shell 72 and a spring latch 73, wherein the first shell 71 and the second shell 72 are arranged opposite to each other and cooperate to form a spherical cavity. In order to facilitate the positioning of the first shell 71 and the second shell 72 during installation, a positioning protrusion 711 is provided on the end surface opposite to the second shell 72, and the second shell 72 is provided with a positioning groove 721 corresponding to the positioning protrusion. In order to prevent the first shell 71 and the second shell 72 from moving after the connection, the positioning protrusion and the positioning groove 721 are provided with a coaxial through hole, and the spring latch 73 is inserted in the through hole, so as to realize the rapid assembly of the first shell 71 and the second shell 72. When the biological filler 7 needs to be disassembled, the spring latch 73 can be directly pulled out, and the overall structure is simple.

[0074] Furthermore, in order to facilitate the installation of the driving mechanism 21, a mounting seat 111 is provided on the top of the tank body 11. In order to facilitate the adjustment of the aeration amount of the nozzle and improve the adjustment efficiency of the aeration amount, the driving mechanism 21 is a forward and reverse motor, the output end of the forward and reverse motor is connected to a driving pipe section 24, the side wall of the driving pipe section 24 is provided with an air inlet 241, and the side wall of the mounting seat 111 is connected to an air inlet pipe 23, one end of the air inlet pipe 23 extends into the aeration pipe 22 and is connected to the air inlet 241. The gas is transported to the driven pipe section 25 through the driving pipe section 24 through the air inlet pipe 23, and is ejected from the nozzle 221 through the air hole 251. In this embodiment, when the forward and reverse motor rotates forward, the aperture of the air hole 251 corresponding to the nozzle increases, thereby increasing the aeration amount at the nozzle. When the forward and reverse motor rotates reversely, the aperture of the air hole 251 corresponding to the nozzle decreases, reducing the aeration amount at the nozzle, which is conducive to quickly increasing or decreasing the aeration amount at the nozzle and improving the response efficiency of the equipment.

[0075] Furthermore, in order to facilitate the detection of parameters such as the redox potential and dissolved oxygen content in the treatment tank 1, at least one of a biosensor, a dissolved oxygen sensor, and an ORP sensor is provided in the treatment tank 1. Among them, the biosensor is an indicator parameter for detecting the degree of organic pollution in the water body, such as the BOD value. The dissolved oxygen sensor measures the dissolved oxygen content in domestic sewage through electrochemical or optical principles, and there are membrane sensors and fluorescent oxygen sensors. The main parameter detected by the ORP sensor is the redox potential in the sewage. The higher the ORP value, the stronger the oxidizing property in the sewage, and the lower the value, the stronger the reducing property. Generally, a positive ORP value indicates that the solution shows a certain oxidizing property, while a negative value indicates that the solution shows a certain reducing property. In an aerobic reaction, if the ORP value continues to be negative, it indicates that the treatment effect is not good, and it is necessary to adjust the treatment process or add an oxidant to improve the oxidizing property.

[0076] The present invention also provides a sewage treatment method, based on the above sewage treatment equipment, comprising the following steps:

[0077] S1, obtaining the dissolved oxygen content or oxidation-reduction potential or BOD value in the treatment tank 1;

[0078] S2. Adjust the size of the pores 251 corresponding to the nozzle 221 according to the dissolved oxygen content, the redox potential or the BOD value.

[0079] Among them, in the above steps, as the aerobic reaction proceeds, the microbial content in the treatment tank 1 increases, and the oxygen consumption increases. At this time, the aperture of the air hole 251 corresponding to the nozzle 221 is increased, and the aeration volume is increased to increase the dissolved oxygen content in the treatment tank 1. When the microbial content in the treatment tank 1 remains stable for a period of time, the aeration volume is kept unchanged. In step S1, the corresponding dissolved oxygen content is measured by the dissolved oxygen sensor, the corresponding BOD value is measured by the biosensor, and the corresponding redox potential is measured by the ORP sensor, so as to adjust the aperture of the air hole 251 corresponding to the nozzle 221.

[0080] In summary, the embodiment of the present invention provides a sewage treatment device and method, wherein the aeration system 2 comprises a driving mechanism 21, an aeration pipe 22, an air inlet pipe 23, a driving pipe section 24, a plurality of driven pipe sections 25, and a plurality of sealing rings 26. The aeration pipe 22 is arranged in the treatment tank 1 and is connected to one end of the air inlet pipe 23, and the other end of the air inlet pipe 23 extends to the outside of the treatment tank 1 and is connected to the air source; the driving pipe section 24 and the plurality of driven pipe sections 25 are arranged in the aeration pipe 22 and are connected to the aeration pipe 22, and the driving pipe section 24 and the plurality of driven pipe sections 25 are rotatably connected; one end of the driving pipe section 24 is connected to the output end of the driving mechanism 21, and the other end is connected to the output end of the driving mechanism 21. The driven bevel gear 28 of the driven pipe section 25 is connected to the driven pipe section 25, and the adjacent driven pipe sections 25 are connected to each other through the driven bevel gear 28. The pipe wall of the driven pipe section 25 is arranged with air holes 251 of different apertures at intervals around the axial direction, and the pipe wall of the aeration pipe 22 is provided with nozzles 221 corresponding to the air holes 251. When the aeration volume needs to be adjusted, the driving mechanism 21 drives the driving pipe section 24 to rotate, thereby driving the multiple driven pipe sections 25 to rotate synchronously, and at the same time adjusts the size of the air holes 251 corresponding to each driven pipe section 25 and the nozzle 221, and accurately adjusts the aeration volume of the nozzle 221, thereby improving the aeration efficiency and reducing energy consumption. In addition, a sealing ring 26 is provided on the outer wall of the driven pipe section 25, and the sealing ring 26 is provided with a through hole 261 coaxial with the air hole 251, so as to ensure the sealing effect when the air holes 251 of different apertures are connected to the nozzle 221, and improve the control accuracy of the aeration volume.

[0081] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A sewage treatment device having a first direction and a second direction which intersect each other perpendicularly, characterized in that: Includes treatment tanks and aeration systems; The aeration system includes a driving mechanism, an aeration pipeline, an air inlet pipe, a driving pipe section, a plurality of driven pipe sections, and a plurality of sealing rings; The driving mechanism is arranged outside the treatment tank, and the output end extends into the aeration pipe; the aeration pipe is arranged inside the treatment tank and is communicated with one end of the air inlet pipe, and the other end of the air inlet pipe extends outside the treatment tank and is communicated with an air source; the driving pipe section and a plurality of driven pipe sections are arranged inside the aeration pipe and are communicated with the aeration pipe, an air inlet hole is opened on the side wall of the driving pipe section, one end of the air inlet pipe extends into the aeration pipe and is communicated with the air inlet hole, and the driving pipe section and a plurality of driven pipe sections are rotatably connected; One end of the driving pipe section is connected to the output end of the driving mechanism, and the other end is connected to a driving bevel gear. A plurality of driven pipe sections are arranged at intervals in the first direction and the second direction. Both ends of the driven pipe section are connected to driven bevel gears. The driven bevel gear of at least one driven pipe section is meshed with the driving bevel gear, and the driven bevel gears of adjacent driven pipe sections are meshed. The pipe wall of the driven pipe section is provided with air holes of different apertures at intervals around the axial direction. The outer wall of the driven pipe section is sleeved with the sealing ring, and the outer wall of the sealing ring is abutted against the inner wall of the aeration pipe. The sealing ring is provided with a through hole coaxial with the air hole, and the pipe wall of the aeration pipe is provided with a nozzle corresponding to the air hole. Wherein, the driving mechanism drives the driving pipe segment to rotate, and the multiple driven pipe segments rotate synchronously, so as to adjust the size of the air holes corresponding to the driven pipe segments and the nozzles; The treatment tank comprises a tank body, a cover body, a first partition plate, and a second partition plate. The top of the tank body is detachably connected to the cover body. The first partition plate and the second partition plate are arranged in the tank body at intervals along the first direction to divide the inside of the tank body into a first cavity, a second cavity, and a third cavity. The outer wall of the tank body is provided with a water inlet connected to the first cavity. The top of the first partition plate is provided with a first port for connecting the first cavity and the second cavity. The top of the second partition plate is provided with a second port for connecting the second cavity and the third cavity. The outer wall of the tank body is provided with a water outlet connected to the third cavity. Wherein, sewage flows from the first cavity through the water inlet to the second cavity to undergo an aerobic reaction, and the sewage in the second cavity becomes clean water after the aerobic reaction, and the third cavity is used to store the clean water; It also includes a lifting mechanism, a frame, a mounting frame and biological fillers; the output end of the lifting mechanism is connected to the frame, the frame is arranged in the processing tank, the frame is provided with a plurality of placement areas at intervals along the first direction and the second direction, the mounting frame is arranged in the placement area, a plurality of cavities are arranged at intervals along the vertical direction in the mounting frame, and each of the cavities is provided with a biological filler; The lifting mechanism comprises a lifting motor and an electromagnet, wherein the lifting motor is fixedly arranged on the cover body, and the output end of the lifting motor extends to the tank body and is connected to the electromagnet, and a magnetic element corresponding to the electromagnet is connected inside the frame body, and a support frame and an elastic support are arranged at intervals along the second direction on the two opposite side surfaces of the first partition and the second partition, the frame body is arranged above the support frame, the elastic support is arranged on the top of the support frame, and a support portion corresponding to the elastic support is arranged on the periphery of the top of the frame body; The lifting motor drives the frame to rise to a specified position in the vertical direction through the electromagnet, the support part presses the elastic support to shrink one end facing away from the frame, the support part moves to above the elastic support, and the elastic support resets to support the support part.

2. The sewage treatment equipment according to claim 1, characterized in that: A first connecting ring and a second connecting ring are axially provided at both ends of the driven pipe section. A bearing is provided on the outer sleeve of the first connecting ring for rotationally connecting with the aeration pipe. The driven bevel gear is provided on the outer sleeve of the second connecting ring. An annular groove for installing the sealing ring is provided at intervals along the axial direction on the outer wall of the driven pipe section.

3. The sewage treatment equipment according to claim 2, characterized in that: The elastic support comprises a seat body, a spring, a support member and a limit screw, the seat body is provided with a limit slot along the first direction on one side surface of the frame body, the spring is arranged in the limit slot, one end of the support member is arranged in the limit slot, and the other end extends outside the limit slot, one end of the spring is against the end surface of the limit slot, and the other end is against the support member, the spring has a tendency to push the support member to move close to the frame body, the top of the seat body is provided with a strip slot, the length direction of the strip slot is arranged along the first direction, the limit screw is arranged along the vertical direction, and the end portion passes through the strip slot and is threadedly connected to the support member, the support member is provided with a first guide inclined surface toward one side of the frame body, the top to the bottom of the first guide inclined surface is inclined downwardly along the direction away from the frame body, and the support part is provided with a second guide inclined surface corresponding to the first guide inclined surface toward the side of the seat body, and the inclination direction of the second guide inclined surface is the same as the inclination direction of the first guide inclined surface.

4. The sewage treatment equipment according to claim 3, characterized in that: The included angle α between the first guiding inclined surface and the vertical direction is 30°-60°.

5. The sewage treatment equipment according to claim 4, characterized in that: The support frame is provided with a guide groove arranged along the vertical direction.

6. The sewage treatment equipment according to claim 1, characterized in that: It also includes an insertion rod. One side of the cavity is provided with an opening for taking and placing the biological filler. The opening is provided with the insertion rod extending in the vertical direction. The top to the bottom of the mounting frame are provided with a socket corresponding to the insertion rod.

7. The sewage treatment equipment according to claim 1, characterized in that: The biological filler includes a first shell, a second shell and a spring latch. The first shell and the second shell are arranged opposite to each other and cooperate to form a spherical cavity. A positioning protrusion is provided on the end surface opposite to the second shell. The second shell is provided with a positioning groove corresponding to the positioning protrusion. The positioning protrusion and the positioning groove are provided with a coaxial through hole, and the spring latch is inserted in the through hole.

8. The sewage treatment equipment according to claim 1, characterized in that: The apertures of the air holes decrease or increase in sequence around the circumference of the driven pipe section.

9. The sewage treatment equipment according to claim 1, characterized in that: A mounting seat is provided on the top of the treatment tank, the driving mechanism is a forward and reverse motor, the output end of the forward and reverse motor is connected to the driving pipe section, the side wall of the driving pipe section is provided with an air inlet hole, the side wall of the mounting seat is connected to the air inlet pipe, one end of the air inlet pipe extends into the aeration pipe and is connected to the air inlet hole, the gas is transported to the driven pipe section through the air inlet pipe and the driving pipe section, and is ejected from the nozzle through the air hole.

10. The sewage treatment equipment according to claim 1, characterized in that: At least one of a biosensor, a dissolved oxygen sensor and an ORP sensor is arranged in the processing tank.

11. The sewage treatment equipment according to claim 1, characterized in that: The number of the driven pipe segments is at least 4.

12. A sewage treatment method, based on the sewage treatment equipment according to any one of claims 1 to 11, characterized in that: The following steps are involved: S1. Obtaining the dissolved oxygen content, oxidation-reduction potential or BOD value in the treatment tank; S2. Adjust the pore size corresponding to the nozzle according to the dissolved oxygen content, the redox potential or the BOD value.

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