A multifunctional sewage treatment device and method

Abstract

The present invention provides a multifunctional sewage treatment device and method, belonging to the technical field of sewage treatment. The multifunctional sewage treatment device includes a box body, a plurality of chambers and a stirring device. An overflow channel two is provided between the second chamber and the third chamber; a blockage clearing mechanism is provided in the overflow channel two and the second chamber; the blockage clearing mechanism includes a triggering component and a blockage clearing component. The triggering component includes a floating plate, an aeration tank, a sliding plate, and a triggering connecting rod fixedly connected to the sliding plate and triggered to rise by the floating plate; the blockage clearing component includes an aeration pipeline, a static aeration branch pipe, and a dynamic aeration branch pipe; the dynamic aeration branch pipe can pass through the aeration tank and aerate into the overflow channel two, an aeration cavity is opened on the dynamic aeration branch pipe, and an aeration hole capable of communicating with the aeration cavity is opened on the static aeration branch pipe. When the flocculated flocs block the overflow channel two, the triggering component of the blockage clearing mechanism triggers the blockage clearing component to dredge the overflow channel two, alleviating the influence of the blockage of the overflow channel two on the sewage treatment efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to a multifunctional sewage treatment device and method. Background Art

[0002] People's lives and various industrial productions will generate sewage. If this sewage is directly discharged without treatment, it will pollute the environment. In existing sewage treatment methods, coagulation and flocculation are two closely related steps. Coagulation refers to adding a coagulant to water to make the colloidal particles that are difficult to precipitate in water aggregate and precipitate with each other. The coagulant undergoes physical or chemical reactions with the suspended particles in water, making them lose stability and form larger particles or flocs. Flocculation is based on coagulation. By adding a flocculant, the colloidal particles that have already lost stability are further aggregated into larger flocs to facilitate subsequent sedimentation or filtration treatment. The combined action of these two steps can improve the efficiency and water quality of water treatment.

[0003] For example, the patent document with the publication number CN214990798U discloses an acid pickling and passivation sewage treatment system, which includes an adjustment tank, a coagulation tank, a flocculation tank, a sedimentation tank, a clear water tank, etc. A coagulant dosing device is provided in the coagulation tank, and a flocculant dosing device is provided in the flocculation tank. A passage one communicating with the coagulation tank is provided on the side wall of the upper part of the flocculation tank, and a passage two communicating with the flocculation tank is provided on the side wall of the lower part of the sedimentation tank. The sewage and the coagulant are coagulated in the coagulation tank and then flow into the flocculation tank through the passage one, and then are flocculated with the flocculant and flow into the sedimentation tank through the passage two. During the processes of coagulation and flocculation, larger particles or flocs will be formed in the water, which may block the passage one and the passage two during the flow of sewage from the coagulation tank to the flocculation tank and from the flocculation tank to the sedimentation tank, thus affecting the efficiency of sewage treatment. Therefore, it is necessary to develop a multifunctional sewage treatment device and method to solve the technical problem that in the existing multi-stage sewage treatment equipment, during the transfer of sewage to adjacent chambers, the flow-through passages are easily blocked. Summary of the Invention

[0004] In view of this, the present invention provides a multifunctional sewage treatment device and method, which solve the technical problem that during the transfer of sewage to adjacent chambers, the flow-through passages are easily blocked by providing a blockage clearing mechanism.

[0005] To solve the above technical problems, on the one hand, the present invention provides a multifunctional sewage treatment device, which includes a box body, a plurality of chambers arranged in the box body, and a stirring device arranged in the plurality of chambers. The plurality of chambers successively include a first chamber, a second chamber, and a third chamber. A medicine adding port is provided in both the first chamber and the second chamber. An overflow channel one is provided between the first chamber and the second chamber, and an overflow channel two is provided between the second chamber and the third chamber; A clogging clearing mechanism capable of clearing the overflow channel two is provided in the overflow channel two and the second chamber;

[0006] The clogging clearing mechanism includes a triggering component and a clogging clearing component. The triggering component includes a floating plate slidably connected to the side wall of the overflow channel two and floating on the liquid surface of the second chamber, an aeration tank opened below the overflow channel two, a sliding plate arranged in the aeration tank and capable of sliding up and down in the aeration tank, and a triggering connecting rod fixedly connected to the sliding plate and triggered to rise by the floating plate; A return spring is connected between the triggering connecting rod and the bottom of the overflow channel two;

[0007] The clogging clearing component includes an aeration pipeline arranged below the box body, a static aeration branch pipe arranged in the aeration tank and communicated with the aeration pipeline, and a dynamic aeration branch pipe fixedly arranged on the sliding plate and sleeved on the static aeration branch pipe; The dynamic aeration branch pipe can pass through the aeration tank and aerate into the overflow channel two. An aeration cavity is opened on the dynamic aeration branch pipe, and an air vent capable of communicating with the aeration cavity is opened on the static aeration branch pipe.

[0008] By adopting the above technical solution, when the flocculated flocs block the second overflow channel, the trigger assembly of the blockage clearing mechanism triggers the blockage clearing assembly to dredge the second overflow channel, alleviating the influence of the blockage of the second overflow channel on the sewage treatment efficiency. Specifically, the sewage is conveyed into the first chamber, a coagulant is added into the first chamber, and the stirring device stirs the coagulant and the sewage. The coagulated sewage flows into the second chamber through the first overflow channel. A flocculant is added into the second chamber, and the stirring device stirs the flocculant and the sewage. The floating plate floats on the surface of the sewage. When the second overflow channel is blocked, the liquid level of the sewage in the second chamber rises, the liquid level drives the floating plate to rise, the floating plate triggers the trigger connecting rod to rise, and then drives the sliding plate and the moving aeration branch pipe to rise, so that the air holes are connected to the aeration cavity. The gas in the aeration pipeline passes through the air holes, reaches the aeration cavity, and then enters the second overflow channel through the moving aeration branch pipe. The rising of the moving aeration branch pipe and the gas entering the second overflow channel dredge the second overflow channel, which is beneficial to slowing down the blockage of the second overflow channel. At the same time, aeration is beneficial to the uniform mixing of the drug and the sewage, improving the reaction speed, reducing sediment deposition at the bottom, and facilitating the forward transportation of the sediment under the action of the water flow. After the second overflow channel is dredged, with the decrease of the liquid level in the second chamber and the elastic force of the reset spring, the floating plate, the trigger connecting rod, the sliding plate and the moving aeration branch pipe are reset, the air holes are closed, and the flocculated sewage flows into the third chamber through the second overflow channel and enters the next process after being stirred by the stirring device. An overflow channel one is provided between the first chamber and the second chamber of the present invention, and an overflow channel two is provided between the second chamber and the third chamber. Compared with pipeline transportation, the overflow channel one and the overflow channel two increase the sewage flow space, which is beneficial to reducing the blockage of the pipeline by sewage during the transfer of adjacent chambers.

[0009] Preferably, the stirring device includes a stirring shaft and a driving motor for driving the stirring shaft to rotate;

[0010] One end of the floating plate is located above the second overflow channel. The other end of the floating plate is fixedly connected with a connecting plate. The chemical addition port is arranged at a position on the floating plate close to the connecting plate. The stirring shaft passes through the chemical addition port and there is a gap between the stirring shafts so that the drug can fall into the second chamber through the chemical addition port. A connecting piece is fixedly connected to the stirring shaft, and a top rod capable of contacting the floating plate or the connecting plate is fixedly connected to the connecting piece.

[0011] By adopting the above technical solution, the driving motor drives the stirring shaft to rotate, the stirring shaft drives the connecting piece and the top rod to move in a circular motion, and the top rod supports the floating plate or the connecting plate.

[0012] Preferably, the connecting plate has a side edge perpendicular to the other end of the floating plate. A guide groove is formed in the side edge, and a guide member is slidably connected in the guide groove. The guide member is fixedly installed on the inner wall of the second chamber.

[0013] By adopting the above technical solution, the guide groove and the guide member limit the lifting of the connecting plate, and further limit the lifting of the floating plate. At the same time, in cooperation with the sliding between the floating plate and the second overflow channel, it is beneficial to reduce the inclination of the floating plate during the rising process, so that the sliding plate and the movable aeration branch pipe are driven by the trigger link to rise smoothly, thereby facilitating the communication between the air holes and the aeration chamber, enabling the air flow to smoothly enter the second overflow channel, and facilitating the dredging of the second overflow channel.

[0014] Preferably, a first partition plate and a second partition plate are arranged in parallel between the second chamber and the third chamber. The first partition plate is fixedly installed at the bottom of the second chamber and fixedly connected to both sides of the second chamber. The second partition plate is fixedly connected to both sides of the third chamber. There are gaps between the first partition plate and the top of the second chamber, between the first partition plate and the second partition plate, and between the second partition plate and the bottom of the third chamber to form a second overflow channel.

[0015] By adopting the above technical solution, after the sewage in the second chamber is flocculated, it successively passes through the gap between the first partition plate and the top of the second chamber, between the first partition plate and the second partition plate, and between the second partition plate and the bottom of the third chamber to reach the third chamber. The sewage is transported between the two chambers by means of overflow, increasing the space for sewage flow, and being beneficial to reducing the blockage of the pipeline by sewage during the transfer of adjacent chambers.

[0016] Preferably, a chute is opened in the upper part of the second partition plate, and a sliding plate that can slide up and down in the chute is fixedly connected below one end of the floating plate.

[0017] By adopting the above technical solution, when the second overflow channel is blocked, the floating plate rises, driving the sliding plate to rise in the chute, which is beneficial to reducing the inclination of the floating plate. The sliding plate and the movable aeration branch pipe are driven by the trigger link to rise smoothly, thereby facilitating the communication between the air holes and the aeration chamber, enabling the air flow to smoothly enter the second overflow channel, and facilitating the dredging of the second overflow channel.

[0018] Preferably, a plurality of through holes for sewage to pass through are provided on the floating plate, and an inclined bottom plate is fixedly connected below the connecting plate. The floating plate and the bottom plate are inclined respectively from the connection between the floating plate and the connecting plate to both sides, so that the ejector rod drives the floating plate and the bottom plate to reciprocate up and down.

[0019] By adopting the above technical solution, the floating plate and the bottom plate are inclined towards both sides respectively from the connection part of the floating plate and the connecting plate. During the process that the rotating shaft drives the ejector rod to contact the bottom plate, the connecting plate is driven to lift regularly, and then the floating plate is driven to lift regularly; during the process that the rotating shaft drives the ejector rod to contact the floating plate, the floating plate is driven to lift regularly, and then the connecting plate is driven to lift regularly. The regular undulation of the floating plate and the connecting plate causes the liquid level of the sewage to fluctuate, which is beneficial to reducing the bubbles on the surface of the sewage and also beneficial to reducing the sediment in the sewage from sinking, thereby reducing the blockage of the second overflow channel. Moreover, the sewage can pass through the through holes on the floating plate, which is beneficial to eliminating the bubbles in the sewage, and the fluctuating liquid level can also reduce the blockage of the through holes by the sediment in the sewage. The inclined floating plate is also beneficial to the sewage flowing through the through holes into the third chamber.

[0020] Preferably, a guide plate is fixedly connected to one end of the floating plate close to the second overflow channel. The guide plate is located in the third chamber and is inclined downward from the end close to the floating plate to the end far from the floating plate.

[0021] By adopting the above technical solution, the guide plate guides the sewage passing through the through holes, which is beneficial to the sewage smoothly falling into the third chamber.

[0022] On the other hand, the present invention provides a multifunctional sewage treatment method, using the multifunctional sewage treatment equipment described above, which includes the following steps:

[0023] Step 1: The sewage is transported into the first chamber, a coagulant is added into the first chamber, and the stirring device stirs the coagulant and the sewage. The coagulated sewage flows into the second chamber through the first overflow channel. A flocculant is added into the second chamber, and the stirring device stirs the flocculant and the sewage. The floating plate floats on the surface of the sewage;

[0024] Step 2: When the second overflow channel is blocked, the liquid level of the sewage in the second chamber rises. The liquid level drives the floating plate to rise, and the floating plate triggers the trigger link to rise, and then drives the sliding plate and the movable aeration branch pipe to rise, so that the air holes are connected to the aeration chamber, and the gas in the aeration pipeline enters into the second overflow channel. The rising of the movable aeration branch pipe and the gas entering into the second overflow channel dredge the second overflow channel;

[0025] Step 3: After the second overflow channel is dredged, with the decrease of the liquid level in the second chamber and the elastic force of the return spring, the floating plate, the trigger link, the sliding plate and the movable aeration branch pipe return to their original positions, the air holes are closed, and the flocculated sewage flows into the third chamber through the second overflow channel and enters the next process after being stirred by the stirring device.

[0026] By adopting the above technical solution, when the second overflow channel is blocked, the liquid level of the sewage in the second chamber rises. The liquid level drives the floating plate to rise, and the floating plate triggers the trigger link to rise, thereby driving the sliding plate and the moving aeration branch pipe to rise, so that the air holes are connected to the aeration chamber. The gas in the aeration pipeline passes through the air holes, reaches the aeration chamber, and then enters the second overflow channel through the moving aeration branch pipe. The rise of the moving aeration branch pipe and the gas entering the second overflow channel dredge the second overflow channel, which is beneficial to slowing down the blockage of the second overflow channel. At the same time, aeration is beneficial to the uniform mixing of the drug and the sewage, improves the reaction speed, reduces sediment deposition at the bottom, and is conducive to the forward transportation of the sediment under the action of the water flow.

[0027] The beneficial effects of the above technical solution of the present invention are as follows:

[0028] 1. When the flocculated flocs block the second overflow channel, the trigger assembly of the blockage clearing mechanism triggers the moving aeration branch pipe of the blockage clearing assembly to rise, so that the air holes are connected to the aeration chamber. The gas in the aeration pipeline passes through the air holes, reaches the aeration chamber, and then enters the second overflow channel through the moving aeration branch pipe. The rise of the moving aeration branch pipe and the gas entering the second overflow channel dredge the second overflow channel, which is beneficial to slowing down the blockage of the second overflow channel. At the same time, aeration is beneficial to the uniform mixing of the drug and the sewage, improves the reaction speed, reduces sediment deposition at the bottom, and is conducive to the forward transportation of the sediment under the action of the water flow.

[0029] 2. The sewage is transported between the two chambers of the present invention by means of overflow, which increases the space for the sewage to flow, and is beneficial to reducing the blockage of the sewage to the pipeline during the transfer of adjacent chambers.

[0030] 3. The floating plate and the bottom plate of the present invention are both inclined, which is beneficial to the ejector rod driving the floating plate and the connecting plate to fluctuate regularly, causing the liquid level of the sewage to fluctuate, which is beneficial to reducing the bubbles on the surface of the sewage, and is also beneficial to reducing the sediment in the sewage from falling, thereby reducing the blockage of the second overflow channel. And the sewage can pass through the through holes on the floating plate, which is beneficial to eliminating the bubbles in the sewage, and the fluctuating liquid level can also reduce the blockage of the through holes by the sediment in the sewage. The inclined floating plate is also beneficial to the sewage flowing through the through holes to flow into the third chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of the multifunctional sewage treatment equipment of the present invention;

[0032] Figure 2 is a cross-sectional view of the multifunctional sewage treatment equipment of the present invention;

[0033] Figure 3 is Figure 2 an enlarged view of part A in

[0034] Figure 4 is Figure 2Enlarged view at location B in [the figure];

[0035] Figure 5 It is a cross-sectional view of the second chamber and the second overflow channel of the present invention;

[0036] Figure 6 is Figure 5 Enlarged view at location C in [the figure];

[0037] Figure 7 It is a schematic structural view of the floating plate and the connecting plate of the present invention;

[0038] Figure 8 It is a cross-sectional view of the guide groove and the guide member in the second chamber of the present invention.

[0039] In the figure: 1. Box body; 11. First chamber; 12. Second chamber; 13. Third chamber; 14. Chemical addition port; 15. Sewage pipe; 16. Chemical addition pipe; 17. Drain pipe; 2. Stirring device; 21. Driving motor; 22. Stirring shaft; 3. First overflow channel; 31. Partition plate three; 32. Partition plate four; 4. Second overflow channel; 41. Partition plate one; 42. Partition plate two; 421. Slide groove; 422. Slide plate; 5. Trigger assembly; 51. Floating plate; 511. Through hole; 52. Aeration tank; 53. Slide plate; 54. Trigger link; 55. Connecting plate; 551. Guide groove; 552. Guide member; 553. Bottom plate; 56. Connecting member; 57. Thrust rod; 58. Deflector; 6. Blockage clearing assembly; 61. Aeration pipe; 62. Static aeration branch pipe; 621. Aeration hole; 63. Dynamic aeration branch pipe; 631. Aeration cavity. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the Figures 1-8 of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0041] Embodiment

[0042] As Figure 1 shown, this embodiment provides a multifunctional sewage treatment device including a box body 1, a plurality of chambers arranged in the box body 1, and a stirring device 2 arranged in the plurality of chambers.

[0043] As Figure 1 and Figure 5As shown, multiple chambers sequentially include a first chamber 11, a second chamber 12, and a third chamber 13. A medicine adding port 14 is provided in each of the first chamber 11 and the second chamber 12. A sewage pipe 15 and a medicine adding pipe 16 are provided on the box body 1. The sewage pipe 15 leads into the first chamber 11 and is used to add sewage into the first chamber 11. Two medicine adding pipes 16 are provided and respectively lead into the medicine adding ports 14 of the first chamber 11 and the second chamber 12, and are used to add a coagulant into the first chamber 11 and a flocculant into the second chamber 12.

[0044] As Figure 1 shown, three stirring devices 2 are provided and are respectively located in the first chamber 11, the second chamber 12, and the third chamber 13. The stirring device 2 includes a stirring shaft 22 and a driving motor 21 for driving the stirring shaft 22 to rotate. The axis of the stirring shaft 22 extends in the vertical direction and stirring blades are provided on the stirring shaft 22.

[0045] As Figure 1 shown, after the sewage is coagulated in the first chamber 11, it enters the second chamber 12 for flocculation, and finally enters the third chamber 13 for reaction. Stirring during the coagulation and flocculation processes is beneficial to the uniform mixing of the sewage and the medicine. At the same time, it reduces sedimentation to the bottom. Stirring in the third chamber 13 further promotes the reaction, flocculation, and precipitation of the medicine and the sewage, and at the same time reduces sedimentation to the bottom. Under the action of the water flow, when the liquid level reaches a certain height, the sediment is discharged with the water flow, and separation of the sediment and the water is carried out after discharge. A drainage pipe 17 communicating with the first chamber 11, the second chamber 12, and the third chamber 13 is provided at the lower part of the box body 1 and is used to discharge the sewage in the first chamber 11, the second chamber 12, and the third chamber 13.

[0046] As Figure 1 shown, medicine can also be added into the third chamber 13. For example, when it is necessary to adjust the pH of the sewage, a coagulant aid can be first added into the first chamber 11 to adjust the pH, and then different flocculants are added into the second chamber 12 and the third chamber 13 in sequence, so that this embodiment is applicable to treating different types of sewage.

[0047] As Figure 2 shown, an overflow channel 3 is provided between the first chamber 11 and the second chamber 12, and an overflow channel 4 is provided between the second chamber 12 and the third chamber 13.

[0048] As Figure 2As shown in the figure, partition three 31 and partition four 32 are arranged in parallel between the first chamber 11 and the second chamber 12, and the plate surfaces of partition three 31 and partition four 32 are perpendicular to the direction of sewage overflow. Partition three 31 is fixedly installed at the bottom of the first chamber 11 and fixedly connected to both sides of the first chamber 11. Partition four 32 is fixedly connected to both sides of the second chamber 12. There are gaps between partition three 31 and the top of the first chamber 11, between partition three 31 and partition four 32, and between partition four 32 and the bottom of the second chamber 12 to form the first overflow channel 3.

[0049] As Figure 2 shown in the figure, partition one 41 and partition two 42 are arranged in parallel between the second chamber 12 and the third chamber 13, and partition one 41 is also parallel to partition three 31. Partition one 41 is fixedly installed at the bottom of the second chamber 12 and fixedly connected to both sides of the second chamber 12. Partition two 42 is fixedly connected to both sides of the third chamber 13. There are gaps between partition one 41 and the top of the second chamber 12, between partition one 41 and partition two 42, and between partition two 42 and the bottom of the third chamber 13 to form the second overflow channel 4.

[0050] As Figure 2 shown in the figure, after the sewage in the first chamber 11 is coagulated, it successively passes through the gap between partition three 31 and the top of the first chamber 11, between partition three 31 and partition four 32, and between partition three 31 and the bottom of the second chamber 12 to reach the second chamber 12. After the sewage in the second chamber 12 is flocculated, it successively passes through the gap between partition one 41 and the top of the second chamber 12, between partition one 41 and partition two 42, and between partition two 42 and the bottom of the third chamber 13 to reach the third chamber 13. The sewage is transported between the two chambers by means of overflow, increasing the space for sewage flow, which is beneficial to reducing the blockage of the pipeline by sewage during the transfer of adjacent chambers.

[0051] As Figure 2 shown in the figure, a blockage cleaning mechanism capable of cleaning the second overflow channel 4 is provided in the second overflow channel 4 and the second chamber 12. The cleaning mechanism includes a trigger assembly 5 as Figure 6 shown in the figure and a blockage cleaning assembly 6 as Figure 4 shown in the figure. When the second overflow channel 4 is blocked, the trigger assembly 5 triggers the blockage cleaning assembly 6 to dredge the second overflow channel 4.

[0052] As Figure 5 and Figure 6 shown in the figure, the trigger assembly 5 includes a floating plate 51, an aeration tank 52, a sliding plate 53, and a trigger link 54.

[0053] Among them, as Figure 2 and Figure 3As shown, the floating plate 51 floats on the liquid surface of the second chamber 12 and can move up and down following the liquid surface. One end of the floating plate 51 is located above the overflow channel two 4 and is slidably connected to the partition two 42. Specifically, a chute 421 is opened downward in the upper part of the partition two 42, and a sliding plate 422 that can slide up and down in the chute 421 is fixedly connected below one end of the floating plate 51. The other end of the floating plate 51 is fixedly connected with a connecting plate 55, and the connecting plate 55 also floats on the liquid surface of the second chamber 12.

[0054] As Figure 2 and Figure 3 shown, the connecting plate 55 abuts against the three inner walls in the second chamber 12 far from the partition one 41.

[0055] As Figure 2 and Figure 5 shown, the chemical addition port 14 is arranged at the part of the floating plate 51 close to the connecting plate 55. The stirring shaft 22 passes through the chemical addition port 14 and there is a gap between the stirring shafts 22 so that the drug can fall into the second chamber 12 through the chemical addition port 14. A connecting piece 56 is fixedly connected to the stirring shaft 22. The connecting piece 56 is in a rod shape and is perpendicular to the stirring shaft 22. A top rod 57 is fixedly connected to the connecting piece 56. The top rod 57 is parallel to the axis of the stirring shaft 22, so the connecting piece 56 and the top rod 57 are perpendicular.

[0056] As Figure 8 shown, the connecting plate 55 has four sides. The side connected to the floating plate 51 is side one, the two sides perpendicular to side one are side two, and the side far from side one and parallel to side one is side three. Side two and side three both abut against the inner wall of the second chamber 12. Guide grooves 551 are opened downward on both side two. A guide piece 552 is slidably connected in the guide grooves 551. The guide piece 552 is in a rod shape and is fixedly installed on the inner wall of the second chamber 12. The guide grooves 551 and the guide pieces 552 limit the lifting of the connecting plate 55, and thus limit the lifting of the floating plate 51. At the same time, in cooperation with the up and down sliding of one end of the floating plate 51, it is beneficial to reduce the inclination of the floating plate 51 during the rising process.

[0057] As Figure 2 and Figure 7 shown, the floating plate 51 is provided with a plurality of through holes 511 for sewage to pass through. A bottom plate 553 is fixedly connected below the connecting plate 55, and the upper end surface and the lower end surface of the floating plate 51 are parallel. The top rod 57 can contact the floating plate 51 or the bottom plate 553, so as to support the floating plate 51 and the connecting plate 55. The floating plate 51 and the bottom plate 553 are inclined from the connection part of the floating plate 51 and the connecting plate 55 to both sides respectively, so that the top rod 57 drives the floating plate 51 and the connecting plate 55 to reciprocate up and down.

[0058] As Figure 2 and Figure 7As shown, since both the floating plate 51 and the bottom plate 553 are inclined, during the process of the rotating shaft driving the ejector rod 57 to contact the bottom plate 553, the bottom plate 553 and the connecting plate 55 are driven to lift regularly, and then the floating plate 51 is driven to lift regularly; during the process of the rotating shaft driving the ejector rod 57 to contact the floating plate 51, the floating plate 51 is driven to lift regularly, and then the connecting plate 55 is driven to lift regularly. The regular undulation of the floating plate 51 and the connecting plate 55 causes the liquid level of the sewage to fluctuate, which is beneficial to reducing the bubbles on the surface of the sewage and also beneficial to reducing the sediment in the sewage from descending, thereby reducing the blockage of the second overflow channel 4, and the sewage can pass through the through holes 511 on the floating plate 51, which is beneficial to eliminating the bubbles in the sewage, and the fluctuating liquid level can also reduce the blockage of the through holes 511 by the sediment in the sewage. The inclined floating plate 51 is also beneficial to the sewage flowing through the through holes 511 into the third chamber 13.

[0059] As Figure 2 and Figure 3 shown, a guide plate 58 is fixedly connected to one end of the floating plate 51 close to the second overflow channel 4. The guide plate 58 is located in the third chamber 13 and the guide plate 58 is inclined downward from the end close to the floating plate 51 to the end far from the floating plate 51. The guide plate 58 guides the sewage passing through the through holes 511, which is beneficial to the sewage smoothly falling into the third chamber 13.

[0060] As Figure 2 and Figure 4 shown, the aeration tank 52 is opened on the outside of the box body 1 and is located at the part below the second overflow channel 4.

[0061] As Figure 2 and Figure 4 shown, the sliding plate 53 is arranged in the aeration tank 52 and can slide up and down in the aeration tank 52.

[0062] As Figure 5 and Figure 6 shown, the trigger link 54 is arranged inside the side wall of the second chamber 12. There are two trigger links 54, which are respectively located at both ends of the sliding plate 53. The lower end of the trigger link 54 passes through the bottom of the second overflow channel 4 and is fixedly connected to the sliding plate 53. The upper end of the trigger link 54 is provided with a downward-bent elbow. A top block is fixedly connected to the floating plate 51. When the floating plate 51 rises, the top block jacks up the elbow, and then drives the trigger link 54 to rise, so that the sliding plate 53 rises. A return spring (not marked in the figure) is connected between the trigger link 54 and the bottom of the second overflow channel 4. When the floating plate 51 descends, under the action of the return spring, the trigger link 54 drives the sliding plate 53 to descend, so that the sliding plate 53 is reset.

[0063] As Figure 4 shown, the blockage clearing assembly 6 includes an aeration pipeline 61, a static aeration branch pipe 62 and a dynamic aeration branch pipe 63.

[0064] AsFigure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the aeration pipeline 61 is arranged below the box body 1. A plurality of aeration pipes communicating with the aeration pipeline 61 are provided at the bottom of the box body 1. The aeration pipes penetrate through the bottom of the box body 1 and extend into the first chamber 11, the second chamber 12 and the third chamber 13, so that the first chamber 11, the second chamber 12 and the third chamber 13 can be aerated.

[0065] As Figure 2 and Figure 4 shown in Figure 2 and Figure 4 , a plurality of static aeration branch pipes 62 are arranged in the aeration tank 52, and the plurality of static aeration branch pipes 62 are all communicated with the aeration pipeline 61. The axis of the static aeration branch pipe 62 extends in the up and down direction. The upper end surface of the static aeration branch pipe 62 is sealed, and aeration holes 621 are opened at the position near the upper end on the side surface.

[0066] As Figure 2 and Figure 4 shown in Figure 2 and Figure 4 , the dynamic aeration branch pipe 63 is fixedly arranged on the sliding plate 53 and sleeved on the static aeration branch pipe 62. The axes of the dynamic aeration branch pipe 63 and the static aeration branch pipe 62 are collinear. The upper end of the dynamic aeration branch pipe 63 is open, and the static aeration branch pipe 62 is located inside the dynamic aeration branch pipe 63 to seal the opening of the dynamic aeration branch pipe 63. The dynamic aeration branch pipe 63 can penetrate through the aeration tank 52 and extend into the second overflow channel 4.

[0067] As Figure 6 shown in Figure 6 , an aeration cavity 631 is formed in the circumferential direction away from the axis in the middle part of the dynamic aeration branch pipe 63. When the dynamic aeration branch pipe 63 follows the sliding plate 53 to rise, the aeration holes 621 and the upper end surface of the static aeration branch pipe 62 can be located inside the aeration cavity 631, so that the gas in the static aeration branch pipe 62 reaches the aeration cavity 631 through the aeration holes 621, and then enters the second overflow channel 4 through the opening of the dynamic aeration branch pipe 63. The rising of the dynamic aeration branch pipe 63 and the gas entering the second overflow channel 4 dredge the second overflow channel 4, which is beneficial to alleviating the blockage of the second overflow channel 4. After the second overflow channel 4 is dredged, the trigger link 54, the sliding plate 53 and the dynamic aeration branch pipe 63 are reset, and the state where the aeration holes 621 are closed is as shown in Figure 4 . Figure 4 shown in Figure 4 .

[0068] A multifunctional sewage treatment method uses the above-mentioned multifunctional sewage treatment equipment and comprises the following steps:

[0069] Step 1: The sewage is transported into the first chamber 11, and a coagulant is added into the first chamber 11. The stirring device 2 stirs the coagulant and the sewage. The coagulated sewage flows into the second chamber 12 through the first overflow channel 3. A flocculant is added into the second chamber 12. The stirring device 2 stirs the flocculant and the sewage. The floating plate 51 floats on the surface of the sewage. During the process that the rotating shaft drives the ejector rod 57 to contact the bottom plate 553, the bottom plate 553 and the connecting plate 55 are driven to lift regularly, and then the floating plate 51 is driven to lift regularly. During the process that the rotating shaft drives the ejector rod 57 to contact the floating plate 51, the floating plate 51 is driven to lift regularly, and then the connecting plate 55 is driven to lift regularly. The regular undulation of the floating plate 51 and the connecting plate 55 causes the liquid level of the sewage to fluctuate, which is beneficial to reducing the bubbles on the surface of the sewage and also beneficial to reducing the sediment in the sewage from sinking, thereby reducing the blockage of the second overflow channel 4. Moreover, the sewage can pass through the through holes 511 on the floating plate 51, which is beneficial to eliminating the bubbles in the sewage. The fluctuating liquid level can also reduce the blockage of the through holes 511 by the sediment in the sewage;

[0070] Step 2: When the second overflow channel 4 is blocked, the liquid level of the sewage in the second chamber 12 rises. The liquid level drives the floating plate 51 to rise. The floating plate 51 triggers the trigger link 54 to rise, and then drives the sliding plate 53 and the movable aeration branch pipe 63 to rise, so that the air holes 621 and the upper end surface of the static aeration branch pipe 62 are both located in the aeration cavity 631, thereby connecting the air holes 621 and the aeration cavity 631. The gas in the aeration pipeline 61 enters into the second overflow channel 4. The rising of the movable aeration branch pipe 63 and the gas entering into the second overflow channel 4 dredge the second overflow channel 4;

[0071] Step 3: After the second overflow channel 4 is dredged, as the liquid level in the second chamber 12 drops, the floating plate 51 drops. Under the elastic force of the reset spring, the trigger link 54, the sliding plate 53 and the movable aeration branch pipe 63 are reset, the air holes 621 are closed, and the flocculated sewage flows into the third chamber 13 through the second overflow channel 4 and enters the next process after being stirred by the stirring device 2.

[0072] In addition, since the flocs in the sewage passing through the first overflow channel 3 may not be as large as those in the sewage passing through the second overflow channel 4, and the blockage in the first overflow channel 3 may not be as severe as that in the second overflow channel 4, a blockage clearing mechanism is provided in the second overflow channel 4. In order to reduce the blockage in the first overflow channel 3, a blockage clearing mechanism can also be provided in the first overflow channel 3.

[0073] In addition, it should be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multifunctional sewage treatment device, comprising a box body, a plurality of chambers arranged in the box body, and a stirring device arranged in the plurality of chambers. The plurality of chambers sequentially include a first chamber, a second chamber, and a third chamber. A chemical dosing port is provided in both the first chamber and the second chamber. It is characterized in that: An overflow channel one is provided between the first bin chamber and the second bin chamber, and an overflow channel two is provided between the second bin chamber and the third bin chamber; a blockage clearing mechanism capable of clearing the overflow channel two is provided in the overflow channel two and the second bin chamber; The blockage clearing mechanism includes a triggering assembly and a blockage clearing assembly. The triggering assembly includes a floating plate slidably connected to the side wall of the overflow channel two and floating on the liquid surface of the second bin chamber, an aeration tank opened below the overflow channel two, a sliding plate arranged in the aeration tank and capable of sliding up and down in the aeration tank, and a triggering connecting rod fixedly connected to the sliding plate and triggered to rise by the floating plate; a return spring is connected between the triggering connecting rod and the bottom of the overflow channel two; The blockage clearing assembly includes an aeration pipeline arranged below the box body, a static aeration branch pipe arranged in the aeration tank and communicated with the aeration pipeline, and a moving aeration branch pipe fixedly arranged on the sliding plate and sleeved on the static aeration branch pipe; the moving aeration branch pipe can pass through the aeration tank and aerate into the overflow channel two, an aeration cavity is opened on the moving aeration branch pipe, and an aeration hole capable of communicating with the aeration cavity is opened on the static aeration branch pipe; A partition one and a partition two are arranged in parallel between the second bin chamber and the third bin chamber. The partition one is fixedly installed at the bottom of the second bin chamber and fixedly connected to both sides of the second bin chamber. The partition two is fixedly connected to both sides of the third bin chamber. Gaps are left between the partition one and the top of the second bin chamber, between the partition one and the partition two, and between the partition two and the bottom of the third bin chamber to form the overflow channel two.

2. The multifunctional sewage treatment equipment according to claim 1, characterized in that: The stirring device includes a stirring shaft and a driving motor for driving the stirring shaft to rotate; One end of the floating plate is located above the overflow channel two. The other end of the floating plate is fixedly connected with a connecting plate. The chemical addition port is arranged at a position on the floating plate close to the connecting plate. The stirring shaft passes through the chemical addition port and there is a gap between the stirring shafts so that the drug can fall into the second bin chamber through the chemical addition port. A connecting piece is fixedly connected to the stirring shaft, and a top rod capable of contacting the floating plate or the connecting plate is fixedly connected to the connecting piece.

3. The multifunctional sewage treatment equipment according to claim 2, characterized in that: The connecting plate has a side edge perpendicular to the other end of the floating plate. A guiding groove is opened on the side edge, and a guiding piece is slidably connected in the guiding groove. The guiding piece is fixedly installed on the inner wall of the second bin chamber.

4. The multifunctional sewage treatment equipment according to claim 3, characterized in that: A sliding groove is opened in the upper part of the partition two. A sliding plate capable of sliding up and down in the sliding groove is fixedly connected below one end of the floating plate.

5. The multifunctional sewage treatment equipment according to claim 2, characterized in that: A plurality of through holes for sewage to pass through are arranged on the floating plate. An inclined bottom plate is fixedly connected below the connecting plate. The floating plate and the bottom plate are inclined from the connection part of the floating plate and the connecting plate to both sides respectively, so that the top rod drives the floating plate and the bottom plate to reciprocate up and down.

6. The multifunctional sewage treatment equipment according to claim 1, characterized in that: A guide plate is fixedly connected to one end of the floating plate close to the overflow channel two. The guide plate is located in the third bin chamber and the guide plate is inclined downward from the end close to the floating plate to the end far from the floating plate.

7. A multi-functional sewage treatment method, using the multi-functional sewage treatment equipment according to claim 1, characterized in that: Including the following steps: Step one: Sewage is conveyed into the first bin chamber, a coagulant is added into the first bin chamber, the stirring device stirs the coagulant and the sewage, and the coagulated sewage flows into the second bin chamber through the overflow channel one. A flocculant is added into the second bin chamber, the stirring device stirs the flocculant and the sewage, and the floating plate floats on the surface of the sewage; Step 2: When the second overflow channel is blocked, the liquid level of the sewage in the second chamber rises. The liquid level drives the floating plate to rise, and the floating plate triggers the trigger link to rise, which in turn drives the sliding plate and the movable aeration branch pipe to rise, so that the aeration holes are connected to the aeration chamber, and the gas in the aeration pipeline enters the second overflow channel. The rise of the movable aeration branch pipe and the gas entering the second overflow channel dredge the second overflow channel; Step 3: After the second overflow channel is dredged, with the decline of the liquid level in the second chamber and the elastic force of the reset spring, the floating plate, the trigger link, the sliding plate and the movable aeration branch pipe are reset, the aeration holes are closed, and the flocculated sewage flows from the second overflow channel into the third chamber, where it is stirred by the stirring device and then enters the next process.

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