Energy-saving and environment-friendly sewage multi-stage advanced treatment device

Abstract

The invention provides an energy-saving and environment-friendly sewage multi-stage advanced treatment device, and relates to the technical field of sewage treatment.The energy-saving and environment-friendly sewage multi-stage advanced treatment device comprises a sewage treatment box body, and an aeration pipe is installed at the position of a second step at the bottom of the inner side of the sewage treatment box body; a conveying pipe is mounted at the bottom of the air inlet pipe; a collecting pipe is mounted in the middle of the conveying pipe; a medicament storage box is mounted on one side of the bottom of the sewage treatment box body, a liquid metal salt medicament is stored in the medicament storage box, an air pump is mounted on the other side of the bottom of the sewage treatment box body, and an airflow pipe is mounted at the output end of the air pump. Air flow generated by the air pump drives water mist to be uniformly distributed in the aeration pipe, so that the medicament water mist can directly reach the bottom of sewage, fully contact with substances in the sewage and quickly chemically react, the overall efficiency of sewage treatment is improved, and the problem that the medicament is often suspended or detained on the surface of the sewage for a long time after being fed and is not stable is solved. The overall sewage treatment efficiency is influenced.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, especially to the energy-saving and environment-friendly sewage multi-stage advanced treatment device. BACKGROUND

[0002] Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse, and the pollutants in the sewage are removed by using the sewage multi-stage advanced treatment device to protect water resources and ecological environment and realize the recycling of water resources.

[0003] In the prior art, when sewage is treated, a reagent is added to the sewage to promote chemical reactions of harmful substances therein and generate colloidal substances, however, due to factors such as the density and solubility of the reagent, the traditional reagent adding method often suspends or lingers on the surface of the sewage for a long time after the reagent is added, and it is difficult to rapidly and uniformly diffuse to the bottom of the sewage, resulting in insufficient contact of the reagent with harmful substances in the bottom area of the sewage, and the reaction effect is greatly reduced, thereby seriously affecting the overall sewage treatment efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an energy-saving and environment-friendly sewage multi-stage advanced treatment device to solve the problems mentioned in the background.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme: The present application is an energy-saving and environment-friendly sewage multi-stage advanced treatment device, specifically comprising: a sewage treatment box body, the bottom of the sewage treatment box body is distributed in a stepped manner, and a water inlet pipeline is installed at the top of one end of the sewage treatment box body; a flange is installed at the outer end of the water inlet pipeline, the inner end of the water inlet pipeline is narrowed in diameter, and the inner end of the water inlet pipeline faces the inside bottom of the sewage treatment box body; an aeration pipe is installed at the second step of the inside bottom of the sewage treatment box body; the top of the aeration pipe is provided with an aeration hole, and the bottom of the aeration pipe is provided with a plurality of air inlet pipes; the bottom of the air inlet pipe is provided with a conveying pipe; the middle position of the conveying pipe is provided with a collecting pipe; a reagent storage tank is installed on one side of the bottom of the sewage treatment box body, the inside of the reagent storage tank stores liquid metal salt reagent, a gas pump is installed on the other side of the bottom of the sewage treatment box body, and a gas flow pipe is installed on the output end of the gas pump; a fog pump is installed on the side of the reagent storage tank, a water mist guide pipe is installed on the output end of the fog pump, wherein a backflow valve is installed on the water mist guide pipe; and the side ends of the water mist guide pipe and the gas flow pipe are installed in the inside of the collecting pipe.

[0006] Further, the sewage treatment box is internally rotatably installed with a rotating rod at one end; the rotating rod is in a cylindrical structure, and the outer side of one end of the rotating rod is installed with uniformly distributed guide plates, wherein the guide plates are rotatably arranged below the inner end of the water inlet pipe; the outer side of the other end of the rotating rod is installed with a positioning member.

[0007] Further, the front end of the positioning member is in a conical structure, and the outer side of the positioning member is installed with two filter members, wherein the filter holes on the two filter members are different in diameter, the filter holes on the filter member at the front end of the positioning member are larger in diameter than the filter holes on the filter member at the rear end; the side surface of each of the two filter members is installed with multiple uniformly distributed rotating shafts, the rotating shafts are installed with return springs, and the side surface of the filter member is installed with a supporting plate through the rotating shafts; the sewage treatment box is installed with two positioning plates at the top of one side.

[0008] Further, the side end of the positioning plate is rotatably connected to the outer side of the positioning member, the inner side of the positioning plate is installed with a spring, and the inner end of the positioning plate is installed with a movable cleaning scraper through the spring; the movable cleaning scraper is in an inclined structure, the bottom of the movable cleaning scraper is slidably installed at the top of one side of the sewage treatment box, the side edge of the movable cleaning scraper is in an inclined structure, and the side of the movable cleaning scraper is slidably installed at the outer side of the filter member.

[0009] Further, the top of the sewage treatment box is installed with a collecting cover, wherein the collecting cover is above the aeration pipe; the top of the sewage treatment box is further installed with a medicine storage tank; the inside of the medicine storage tank is stored with a coagulant, the bottom of the medicine storage tank is provided with multiple uniformly distributed medicine outlet holes, and the bottom of the medicine storage tank is installed with a positioning frame; the inside of the positioning frame is reciprocally slidably installed with a movable plate.

[0010] Further, the movable plate is in an L-shaped structure, the bottom of the movable plate is provided with multiple uniformly distributed medicine outlet holes, the side surface of the movable plate is slidably installed at the side surface of the medicine storage tank, and a positioning groove is formed at the middle position of the side surface of the movable plate; the side surface of the collecting cover is rotatably penetrated with a transmission rod, wherein the transmission rod is installed with a fan blade at the position inside the collecting cover.

[0011] Further, the transmission rod is in a cylindrical structure, the side end of the transmission rod penetrates the positioning groove and is installed at the side surface of the medicine storage tank, and the outer side of the side end of the transmission rod is installed with a rotating plate; the rotating plate is rotatably installed inside the positioning groove.

[0012] Further, three installation grooves are formed at the third step of the inner bottom of the sewage treatment box; the inner end of each of the three installation grooves is rotatably installed with a rotating member; the upper end of the rotating member is provided with symmetrically distributed receiving storage grooves; the bottom of the sewage treatment box is installed with a driving motor, and the output end of the driving motor is connected to the side end of the rotating member through a chain set.

[0013] Further, the sewage treatment box is internally provided with a separation plate at the other end, wherein the inner bottom of the separation plate is internally provided with a water quality detector; the other end of the sewage treatment box is externally provided with a drainage pipeline; and the inner end of the drainage pipeline is internally provided with the separation plate.

[0014] Further, the sewage treatment box is externally provided with a water pump, the input end of the water pump is externally provided with an absorption pipe, and the output end of the water pump is externally provided with a reflux pipe; the absorption pipe is externally provided with the sewage treatment box, and the inner end of the absorption pipe is internally provided with the separation plate; and the reflux pipe penetrates through the sewage treatment box, and the inner end of the reflux pipe is externally provided with a plurality of water outlets.

[0015] The sewage multi-stage deep treatment device provided by the application has the following beneficial effects: In use, the metal salt medicament in the medicament tank is converted into water mist by the atomizing pump, and the water mist is uniformly distributed in the aeration pipe by the airflow generated by the air pump, so that the medicament water mist can directly reach the bottom of the sewage and fully contact with the substances in the sewage and quickly react, compared with the traditional medicament feeding mode, the problem of insufficient reaction caused by long-time stay of the medicament on the surface of the sewage is effectively avoided, the reaction efficiency of the medicament and the pollutants in the sewage is significantly improved, and the sewage treatment effect is enhanced, the airflow carrying the medicament water mist flows out through the aeration pipe, so that the aeration range can cover a wider sewage area, the airflow drives the water mist to flow quickly, the reaction speed is accelerated, the large-area sewage can be treated in a short time, the sewage treatment period is greatly shortened, and the overall efficiency of the sewage treatment is improved.

[0016] In addition, the narrowed diameter of the inner end of the water inlet pipeline increases the water flow pressure, providing sufficient power for the subsequent filtration operation, and the two filter elements are provided with different pore sizes, which can perform graded treatment according to the size of impurities, effectively improving the accuracy and comprehensiveness of sewage filtration, ensuring that impurities of different particle sizes can be effectively intercepted, and significantly improving the quality of sewage filtration.

[0017] The rotation of the filter element is completely driven by the power of the sewage flow, without the need for additional power equipment to provide power, greatly reducing the consumption of power resources, reducing the operation cost of sewage treatment, and meeting the concept of sustainable development, having significant economic and environmental benefits. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings in the following description only relate to some embodiments of the application, and are not limited to the application.

[0020] In the drawings: Figure 1 The schematic diagram showing the overall structure of the present application is shown; Figure 2 The schematic diagram showing the sectional structure of the sewage treatment box of the present application is shown; Figure 3 The schematic diagram showing the three-dimensional structure of the movable cleaning scraper of the present application is shown; Figure 4 The schematic diagram showing the three-dimensional structure of the filter of the present application is shown; Figure 5 The schematic diagram showing the three-dimensional structure of the collecting pipe of the present application is shown; Figure 6 The schematic diagram showing the three-dimensional structure of the aeration pipe of the present application is shown; Figure 7 The schematic diagram showing the sectional structure of the collecting cover of the present application is shown; Figure 8 The schematic diagram showing the three-dimensional structure of the backflow pipe of the present application is shown; Figure 9 The schematic diagram showing the sectional structure of the rotating member of the present application is shown.

[0021] List of reference signs 1, sewage treatment box; 101, water inlet pipe; 102, rotating rod; 103, flow guide plate; 104, positioning member; 105, filter; 106, supporting plate; 107, positioning plate; 108, movable cleaning scraper; 2, aeration pipe; 201, air inlet pipe; 202, conveying pipe; 203, collecting pipe; 204, medicament storage tank; 205, water mist flow guide pipe; 206, air flow pipe; 207, collecting cover; 208, medicament storage tank; 209, positioning frame; 2010, movable plate; 2011, positioning groove; 2012, transmission rod; 2013, rotating plate; 3, mounting groove; 301, rotating member; 302, storage tank; 303, separation plate; 304, water drainage pipe; 305, absorption pipe; 306, backflow pipe; 307, water outlet groove. DETAILED DESCRIPTION

[0022] So that the purpose, technical solutions and advantages of the embodiments of the present application are more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0023] Please refer to Figures 1 to 9 : Embodiment one: the application proposes an energy-saving and environment-friendly multi-stage deep sewage treatment device, comprising: a sewage treatment box 1, the bottom of the sewage treatment box 1 is distributed in a stepped manner, divided into a first step, a second step and a third step, and a water inlet pipe 101 is installed at the top of one end of the sewage treatment box 1; a flange is installed at the outer end of the water inlet pipe 101, the inner end of the water inlet pipe 101 is narrowed in diameter, and the inner end of the water inlet pipe 101 faces the inside bottom of the sewage treatment box 1; a rotating rod 102 is rotatably installed inside one end of the sewage treatment box 1; the rotating rod 102 is a cylindrical structure, and uniform distribution of guide plates 103 is installed on the outer side of one end of the rotating rod 102, wherein the guide plates 103 are rotated below the inner end of the water inlet pipe 101; a positioning piece 104 is installed on the outer side of the other end of the rotating rod 102; the front end of the positioning piece 104 is a conical structure, and two filter pieces 105 are installed on the outer side of the positioning piece 104, wherein the filter holes on the two filter pieces 105 are different in size, the filter hole diameter on the filter piece 105 at the front end of the positioning piece 104 is larger than that on the filter piece 105 at the rear end; a plurality of uniformly distributed shafts are installed on the side of the two filter pieces 105, a return spring is installed on the shaft, and a supporting plate 106 is installed on the side of the filter piece 105 through the shaft; two positioning plates 107 are installed at the top of one side of the sewage treatment box 1; the side end of the positioning plate 107 is rotatably connected to the outer side of the positioning piece 104, a spring is installed on the inner side of the positioning plate 107, and a movable cleaning scraper 108 is installed on the inner end of the positioning plate 107 through the spring; the movable cleaning scraper 108 is an inclined structure, the bottom of the movable cleaning scraper 108 is slidingly installed on the top of one side of the sewage treatment box 1, one side edge of the movable cleaning scraper 108 is an inclined structure, and the movable cleaning scraper 108 is slidingly installed on the outer side of the filter piece 105.

[0024] In the embodiment of the present application, when sewage is treated, the sewage flows into the sewage treatment box 1 through the water inlet pipe 101. Since the inner end of the water inlet pipe 101 is narrowed, the water flow pressure of the inner end of the water inlet pipe 101 increases, the sewage flow drives the guide plate 103 of the rotating rod 102 to rotate, the guide plate 103 drives the rotating rod 102 and the positioning member 104 to rotate inside the sewage treatment box 1, the positioning member 104 drives the two filter members 105 to rotate at the same time, the filter holes on the two filter members 105 treat different sizes of impurities, and the filter member 105 drives the supporting plate 106 to rotate after rotating, the filter member 105 and the supporting plate 106 drive the filtered impurities to rotate upwards, the supporting plate 106 reduces the problem of falling of the adhered impurities, and the side of the movable cleaning scraper 108 is attached to the side of the filter member 105 under the action of the spring inside the positioning plate 107 to scrape and clean, when the supporting plate 106 rotates to the side of the movable cleaning scraper 108, the supporting plate 106 is attached to the side of the filter member 105 after rotating, the inclined structure of the side of the movable cleaning scraper 108 driven by the supporting plate 106 drives the movable cleaning scraper 108 to move to the inside of the positioning plate 107, the supporting plate 106 slides through the side of the movable cleaning scraper 108 and restores to the original position under the action of the return spring, the filter member 105 drives the supporting plate 106 to continuously rotate to filter and treat the sewage, the movable cleaning scraper 108 is inclined to make the scraped impurities be discharged into a designated container for treatment, the rotation of the filter member 105 will not affect the flowability of the sewage due to the accumulation, and the rotation of the filter member 105 is driven by the power of the sewage flow, which reduces the effect of power resources and saves energy and protects the environment.

[0025] The second embodiment is based on the first embodiment, and the second section of the ladder at the bottom of the sewage treatment box 1 is provided with an aeration pipe 2; the top of the aeration pipe 2 is provided with an aeration hole, and the bottom of the aeration pipe 2 is provided with a plurality of air inlet pipes 201; the bottom of the air inlet pipe 201 is provided with a conveying pipe 202; the middle position of the conveying pipe 202 is provided with a collecting pipe 203; one side of the bottom of the sewage treatment box 1 is provided with a medicament storage tank 204, the inside of the medicament storage tank 204 stores liquid metal salt medicament, the other side of the bottom of the sewage treatment box 1 is provided with an air pump, the output end of the air pump is provided with an air flow pipe 206; the side of the medicament storage tank 204 is provided with an atomizing pump, the output end of the atomizing pump is provided with a water mist guide pipe 205, wherein the water mist guide pipe 205 is provided with a backflow valve; the side end of the water mist guide pipe 205 and the air flow pipe 206 are installed in the inside of the collecting pipe 203; the top of the sewage treatment box 1 is provided with a collecting cover 207, wherein the collecting cover 207 is above the aeration pipe 2; the top of the sewage treatment box 1 is also provided with a medicament storage tank 208; the inside of the medicament storage tank 208 stores coagulant, the bottom of the medicament storage tank 208 is provided with a plurality of evenly distributed medicine outlets, and the bottom of the medicament storage tank 208 is provided with a positioning frame 209; the inside of the positioning frame 209 is reciprocally slidably provided with a movable plate 2010; the movable plate 2010 is L-shaped structure, and the bottom of the movable plate 2010 is provided with a plurality of evenly distributed medicine outlets, and the side of the movable plate 2010 is slidably installed in the side of the medicament storage tank 208, the middle position of the side of the movable plate 2010 is provided with a positioning groove 2011; the side of the collecting cover 207 penetrates a transmission rod 2012, wherein the transmission rod 2012 is provided with a fan blade at the position inside the collecting cover 207; the transmission rod 2012 is a cylindrical structure, and the side end of the transmission rod 2012 penetrates the positioning groove 2011 and is installed in the side of the medicament storage tank 208, and the side end of the transmission rod 2012 is provided with a rotating plate 2013;The rotating plate 2013 is rotatably installed inside the positioning groove 2011. When treating sewage, the atomizing pump on the side of the medicament storage tank 204 works, so that the metal salt medicament inside the medicament storage tank 204 forms water mist after passing through the atomizing pump and flows through the water mist guide pipe 205. At the same time, the airflow generated by the air pump at the bottom of the sewage treatment box 1 flows through the airflow pipe 206. The medicament water mist flowing out of the water mist guide pipe 205 and the airflow flowing out of the airflow pipe 206 flow together inside the collecting pipe 203. Then the airflow carries the water mist and is distributed to each air inlet pipe 201 through the conveying pipe 202 and then enters the inside of the aeration pipe 2, so that the airflow and the medicament water mist flow into the sewage through the aeration holes on the aeration pipe 2. The water mist flows upward under the driving of the airflow, so that the medicament water mist reacts with the substances in the sewage at the bottom of the sewage, and the coverage of aeration is large and the speed is fast, which greatly improves the chemical reaction treatment of the sewage, so that the harmful substances in the sewage form colloidal substances and flow. After the airflow generated by aeration flows upward, most of the airflow is collected inside the collecting cover 207. Then the peculiar smell filtering module at the top of the collecting cover 207 discharges after treating the peculiar smell. The upward flowing airflow drives the fan blades on the transmission rod 2012 to rotate, the fan blades drive the transmission rod 2012 to rotate, and the transmission rod 2012 drives the rotating plate 2013 at the side end to rotate inside the positioning groove 2011. The distal end of the rotating plate 2013 pushes one side of the positioning groove 2011 to move, so that the bottom of the movable plate 2010 moves inside the positioning frame 209. When the bottom of the movable plate 2010 and the medicine outlet hole of the medicament storage tank 208 coincide, the coagulant in the medicament storage tank 208 is sprinkled into the sewage to coagulate and treat the precipitate in the sewage, so that the sewage precipitate quickly precipitates at the third step inside the bottom of the sewage treatment box 1, greatly improving the treatment speed of the sewage.

[0026] The third embodiment is based on the first embodiment, and three installation grooves 3 are arranged at the third step of the inner bottom of the sewage treatment box 1; the inner end of each of the three installation grooves 3 is rotatably connected with a rotating piece 301; the upper end of the rotating piece 301 is provided with symmetrically distributed storage tanks 302; a driving motor is arranged at the bottom of the sewage treatment box 1, and the output end of the driving motor is connected with the side end of the rotating piece 301 through a chain set; a separation plate 303 is arranged at the inner side of the other end of the sewage treatment box 1, wherein a water quality detector is arranged at the inner bottom of the separation plate 303; a drainage pipeline 304 is arranged at the other end of the sewage treatment box 1; the inner end of the drainage pipeline 304 is located at the inner side of the separation plate 303; a water pump is arranged at the outer side of the sewage treatment box 1, the input end of the water pump is provided with an absorption pipe 305, and the output end of the water pump is provided with a return pipe 306; the absorption pipe 305 is arranged at the side of the sewage treatment box 1, and the inner end of the absorption pipe 305 is located at the inner side of the separation plate 303; the return pipe 306 penetrates through the side of the sewage treatment box 1, and the inner end of the return pipe 306 is provided with a plurality of water outlets 307; when the sewage is treated, the sewage sediments are accumulated at the third step of the inner bottom of the sewage treatment box 1, and then the treated sewage flows to the inner side of the separation plate 303, the water quality detector at the inner side of the separation plate 303 detects the treated sewage, and when the treated sewage meets the discharge standard, the treated sewage is discharged through the drainage pipeline 304; when the treated sewage does not meet the discharge standard, the water pump at the outer side of the sewage treatment box 1 works, the sewage is absorbed through the absorption pipe 305, and then flows to the inside of the return pipe 306 through the water pump and is discharged again through the water outlets 307 at the second step for further treatment; the sewage sediments are accumulated in the storage tanks 302 at the outer side of the rotating piece 301, the driving motor at the bottom of the sewage treatment box 1 drives the three rotating pieces 301 to rotate in the installation grooves 3 through the chain set, the rotating piece 301 drives the storage tanks 302 storing the sediments to rotate to the bottom for discharge, thereby reducing the turbidity caused by salvaging the sediments again and reducing the influence of the accumulation of the sediments at the bottom of the sewage treatment device on the flow amount of the sewage treatment.

[0027] The working principle of the embodiment is as follows: sewage flows into the sewage treatment box 1 through the water inlet pipeline 101, and the sewage flows downward to drive the guide plate 103 to drive the rotating rod 102 and the positioning piece 104 to rotate on the inner side of the sewage treatment box 1, the positioning piece 104 drives the two filtering pieces 105 to rotate, the filtering holes on the two filtering pieces 105 treat different sizes of impurities, the filtering piece 105 drives the supporting plate 106 to rotate the filtered impurities upward, and one side of the movable cleaning scraper 108 is attached to the side surface of the filtering piece 105 under the action of the spring to scrape and clean, the supporting plate 106 rotates to one side of the movable cleaning scraper 108 to drive the inclined structure on one side of the movable cleaning scraper 108 to move, the supporting plate 106 slides on one side of the movable cleaning scraper 108 to restore the original position under the action of the reset spring, the filtering piece 105 drives the supporting plate 106 to continuously rotate to filter and treat the sewage, the filtered sewage flows to the second step on the inner side of the sewage treatment box 1, the metal salt medicament in the medicament storage tank 204 forms water mist through the atomizing pump and flows through the water mist guide pipe 205, and the airflow generated by the air pump at the bottom of the sewage treatment box 1 flows through the airflow pipe 206, the medicament water mist flowing out of the water mist guide pipe 205 and the airflow flowing out of the airflow pipe 206 flow in the collecting pipe 203, the airflow carries the water mist to be branched to each air inlet pipe 201 through the conveying pipe 202 and then enters the aeration pipe 2 to flow into the sewage through the aeration holes on the aeration pipe 2, the water mist flows upward under the action of the airflow and reacts with the sewage, the collecting cover 207 collects most of the airflow flowing upward, the airflow blows the fan blades to drive the transmission rod 2012 to rotate, the transmission rod 2012 drives the distal end of the rotating plate 2013 to push one side of the positioning groove 2011 to move, the bottom of the movable plate 2010 moves on the inner side of the positioning frame 209, the rotating plate 2013 continuously rotates to make the movable plate 2010 reciprocate, the drug outlet hole at the bottom of the movable plate 2010 coincides with the drug outlet hole at the bottom of the medicament storage tank 208 to make the coagulation aid in the medicament storage tank 208 sprayed into the sewage for coagulation treatment, the sewage sediment rapidly deposits on the third step at the bottom of the inner side of the sewage treatment box 1, the treated sewage flows to the inner side of the separating plate 303, the water quality detector on the inner side of the separating plate 303 detects the treated sewage to meet the discharge standard, and then is discharged through the drain pipeline 304, the sewage that does not meet the discharge standard is absorbed through the absorption pipe 305 and then flows into the backflow pipe 306 through the water pump and then is discharged to the second step through the water outlet groove 307 again for treatment, and the sewage sediment is gathered in the storage tank 302 on the outer side of the rotating piece 301, and the driving motor drives the three rotating pieces 301 to rotate through the chain set to rotate the storage tank 302 storing the sediment to the bottom for discharge.

[0028] In this paper, the following points need attention: 1. The drawings of the embodiment of the present application only relate to the structures involved in the embodiment of the present application, and other structures can refer to the general design.

[0029] 2. The embodiments of the present application and the features in the embodiments can be combined with each other in the case of no conflict to obtain new embodiments.

[0030] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. Energy-saving and environment-friendly multi-stage advanced wastewater treatment device, characterized in that, Include: Sewage treatment box (1), the bottom of sewage treatment box (1) is ladder-shaped distribution, and the top of one end of sewage treatment box (1) is provided with water inlet pipe (101); The outer end of water inlet pipe (101) is provided with flange, and the inner end of water inlet pipe (101) is narrow in diameter, and the inner end of water inlet pipe (101) is towards the inside bottom of sewage treatment box (1); The second ladder of the inside bottom of sewage treatment box (1) is provided with aeration pipe (2); The top of aeration pipe (2) is provided with aeration hole, and the bottom of aeration pipe (2) is provided with multiple air inlet pipes (201); The bottom of air inlet pipe (201) is provided with delivery pipe (202); The middle position of delivery pipe (202) is provided with collecting pipe (203); The bottom of sewage treatment box (1) is provided with reagent tank (204) on one side, the inside of reagent tank (204) is stored with liquid metal salt reagent, the bottom of sewage treatment box (1) is provided with air pump on the other side, and the output end of air pump is provided with airflow pipe (206); The side of reagent tank (204) is provided with atomizing pump, the output end of atomizing pump is provided with water mist guide pipe (205), wherein the water mist guide pipe (205) is provided with backflow valve; The side end of water mist guide pipe (205) and airflow pipe (206) is installed in the inside of collecting pipe (203).

2. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 1, characterized in that, One end of the inside of sewage treatment box (1) is rotatably provided with rotating rod (102); The outside of one end of rotating rod (102) is provided with uniformly distributed guide plate (103), wherein the rotating rod (102) is rotatably provided with guide plate (103) below the inner end of water inlet pipe (101); The outside of the other end of rotating rod (102) is provided with positioning member (104).

3. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 2, characterized in that, The outside of positioning member (104) is provided with two filtering members (105), wherein the filter holes of two filtering members (105) are different in diameter, the filter hole diameter of the filtering member (105) at the front end of positioning member (104) is greater than that of the filtering member (105) at the rear end; The side of two filtering members (105) is provided with multiple uniformly distributed rotating shafts, the rotating shafts are provided with return springs, and the side of filtering member (105) is provided with supporting plate (106) through rotating shaft; The top of one side of sewage treatment box (1) is provided with two positioning plates (107).

4. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 3, characterized in that, The side end of positioning plate (107) is rotatably connected with the outside of positioning member (104), the inside of positioning plate (107) is provided with spring, and the inside end of positioning plate (107) is provided with movable cleaning scraper (108) through spring; The movable cleaning scraper (108) is inclined structure, the bottom of movable cleaning scraper (108) is slidingly installed on one side of the top of sewage treatment box (1), and the side edge position of movable cleaning scraper (108) is inclined structure, and the side of movable cleaning scraper (108) is slidingly installed on the outside of filtering member (105).

5. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 4, characterized in that, The top of the sewage treatment box (1) is provided with a collecting cover (207); the collecting cover (207) is above the aeration pipe (2), and the gas outlet at the top of the collecting cover (207) is provided with an odor filtering module; the top of the sewage treatment box (1) is also provided with a medicine storage tank (208); the inside of the medicine storage tank (208) stores a coagulant, the bottom of the medicine storage tank (208) is provided with a plurality of evenly distributed medicine outlets, and the bottom of the medicine storage tank (208) is provided with a positioning frame (209); the inside of the positioning frame (209) is reciprocally slidably provided with a movable plate (2010).

6. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 5, characterized in that, The bottom of the movable plate (2010) is provided with a plurality of evenly distributed medicine outlets, and the side surface of the movable plate (2010) is slidably arranged on the side surface of the medicine storage tank (208); the middle position of the side surface of the movable plate (2010) is provided with a positioning groove (2011); the side surface of the collecting cover (207) is rotatably provided with a transmission rod (2012), wherein the transmission rod (2012) is provided with a fan blade at the position inside the collecting cover (207).

7. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 6, characterized in that, The side end of the transmission rod (2012) penetrates the positioning groove (2011) and is arranged on the side surface of the medicine storage tank (208), and the side end of the transmission rod (2012) is provided with a rotating plate (2013) on the outside; the rotating plate (2013) is rotatably arranged in the positioning groove (2011).

8. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 7, characterized in that, Three installation grooves (3) are arranged at the third step of the inside bottom of the sewage treatment box (1); a rotating piece (301) is rotatably arranged at the inner end of each of the three installation grooves (3); the rotating piece (301) is provided with symmetrically distributed receiving storage grooves (302) on the upper surface; a driving motor is arranged at the bottom of the sewage treatment box (1), and the output end of the driving motor is connected with the side end of the rotating piece (301) through a chain set.

9. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 8, characterized in that, A separation plate (303) is arranged at the other end of the inside of the sewage treatment box (1), wherein a water quality detector is arranged at the inside bottom of the separation plate (303); a drainage pipeline (304) is arranged at the other end of the sewage treatment box (1); the inner end of the drainage pipeline (304) is at the inside of the separation plate (303).

10. The energy-saving and environment-friendly multi-stage advanced wastewater treatment device according to claim 9, characterized in that, A water pump is arranged at the outside of the sewage treatment box (1), an absorption pipe (305) is arranged at the input end of the water pump, and a return pipe (306) is arranged at the output end of the water pump; the absorption pipe (305) is arranged at the side surface of the sewage treatment box (1), and the inner end of the absorption pipe (305) is at the inside of the separation plate (303); the return pipe (306) penetrates the side surface of the sewage treatment box (1), and a plurality of water outlets (307) are arranged at the inner end side of the return pipe (306).

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