An apparatus and method for treating sewage in the preparation of activated zinc oxide

Abstract

The present invention belongs to the technical field of sewage treatment. Specifically, it is a sewage treatment device and treatment method for preparing activated zinc oxide, including a sewage treatment pipeline. Above the sewage treatment pipeline, a medicine delivery pipeline is installed. Inside the medicine delivery pipeline, a reducing agent is stored. A sedimentation tank is installed on the side of the sewage treatment pipeline. Inside the sewage treatment pipeline, a plurality of rotating columns are rotatably connected, and the plurality of rotating columns are arranged at intervals; during operation, the sewage treatment pipeline is connected to an external treatment tank through a connecting pipeline, and sewage is introduced into the sewage treatment pipeline. At the same time, the prepared reducing agent is introduced into the sewage treatment pipeline through the medicine delivery pipeline. The reducing agent has functions such as adsorption and catalytic oxidation in sewage treatment, can effectively remove pollutants such as heavy metals and organic substances, and can intermittently transport the reducing agent under the action of the medicine delivery pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, in particular to a sewage treatment device and a treatment method for preparing sewage with active zinc oxide. Background Art

[0002] Industrial wastewater and domestic sewage contain a large amount of heavy metal ions, organic pollutants, suspended solids and other harmful substances, which need to be treated. Traditional sewage treatment methods include physical, chemical and biological methods, but these methods have problems such as low efficiency, high cost and secondary pollution when treating certain specific pollutants.

[0003] As a highly efficient inorganic material, reducing agent has excellent photocatalytic, adsorption and antibacterial properties, and has received extensive attention in the field of sewage treatment in recent years. Reducing agent can degrade organic pollutants through photocatalysis, adsorb heavy metal ions, and inhibit bacterial growth, thereby significantly improving the sewage treatment effect. However, when preparing the reducing agent, the sewage generated by it needs to be treated.

[0004] When active zinc oxide is prepared, its raw materials often contain some metal impurities such as iron, copper and lead, which will be discharged together with the waste materials of the reducing agent preparation. At present, it is more troublesome to deal with these metal impurities discharged together, and some reducing agents need to be added during sewage treatment so that they can combine with the heavy metal ions of the sewage generated during the preparation of active zinc oxide. However, in the process of adding them, they are generally added all at once, which not only wastes the raw materials of the reducing agent, but also is not conducive to the treatment of sewage.

[0005] To this end, the present invention provides a wastewater treatment device and a treatment method for preparing activated zinc oxide. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the active zinc oxide preparation sewage treatment device described in the present invention comprises a sewage treatment pipeline, a drug delivery pipeline is installed above the sewage treatment pipeline, a reducing agent is stored inside the drug delivery pipeline, a sedimentation tank is installed on the side of the sewage treatment pipeline, a plurality of rotating columns are rotatably connected inside the sewage treatment pipeline, and the plurality of rotating columns are designed to be arranged at intervals, a drug delivery pipe is installed on the lower end surface of the drug delivery pipeline, and the drug delivery pipe is used to intermittently feed the reducing agent, and a cleaning mechanism is provided on the outer peripheral surface of the rotating column, and the cleaning mechanism is used to remove ferromagnetic impurities in the sewage.

[0008] Preferably, the cleaning mechanism includes deflection rods rotatably arranged on the outer peripheral surface of the rotating column. A plurality of deflection rods are provided and are arranged in a circumferential array on the outer peripheral surface of the rotating column. A plurality of electromagnetic adsorption rods are arranged on the surface of the deflection rods, and the electromagnetic adsorption rods are used to adsorb ferromagnetic impurities in the sewage.

[0009] Preferably, a plurality of propeller blades are fixedly connected to the outer peripheral surface of the rotating column. The plurality of propeller blades are arranged in a circumferential array on the outer peripheral surface of the rotating column, and a rotational speed sensor is installed on the lower end surface of the rotating column.

[0010] Preferably, a rectangular groove is formed inside each deflection rod. A rectangular adsorption plate is slidably arranged inside the rectangular groove. The shape of the rectangular adsorption plate is adapted to the shape of the rectangular groove. A plurality of electromagnetic adsorption rods are rotationally arranged in an array on the outer surface of the rectangular adsorption plate.

[0011] Preferably, an electric telescopic column is fixedly installed on the inner wall of each rectangular groove. The telescopic end of the electric telescopic column is connected to the side wall of the rectangular adsorption plate. A plurality of square grooves are formed on the outer peripheral surface of the rectangular adsorption plate. A horizontal axis is fixedly connected to the inner wall of each square groove, and each electromagnetic adsorption rod is rotatably arranged on the outer peripheral surface of each horizontal axis.

[0012] Preferably, a scraping plate is arranged on the inner wall of the square groove. The side of the scraping plate away from the square groove is in contact with the side wall of the electromagnetic adsorption rod. The scraping plate is rotatably arranged on the inner wall of the square groove through a rotating column, and a torsion spring is arranged at the rotational connection of the scraping plate and the square groove. A recovery plate is provided below the sewage treatment pipeline.

[0013] Preferably, a vertical shaft is fixedly installed on the upper end surface of each rotating column. An intermittent gear is fixedly installed on the outer peripheral surface of the top end of the vertical shaft. A rotating shaft is rotatably arranged on the upper end surface of the sewage treatment pipeline. A driven gear is fixedly installed on the upper end surface of the rotating shaft. The intermittent gear and the driven gear are meshed and connected; during operation, when the rotating column rotates, the rotating column will drive the vertical shaft on its upper end surface to rotate at the same time. The vertical shaft drives the intermittent gear to rotate. The intermittent gear will drive the driven gear meshed with it to rotate. The driven gear will drive the rotating shaft to rotate. The rotating shaft and the driven gear will intermittently input the reducing agent inside the medicine delivery pipe into the sewage treatment pipeline.

[0014] Preferably, a medicine storage plate is slidably arranged inside the medicine delivery pipe. A pressure block is installed on the side wall of the medicine storage plate. A cam is fixedly installed on the outer peripheral surface of the rotating shaft. During the process of driving the cam to rotate, the convex end of the cam will contact the arc-shaped part of the pressure block. A plurality of first material distribution grooves are formed on the surface of the medicine storage plate. It should be noted that when the medicine delivery pipeline conveys the reducing agent, the reducing agent will fall above the medicine storage plate inside the medicine delivery pipe. Further, when the medicine delivery pipe is specifically performing the medicine delivery work, that is, when the driven gear drives the rotating shaft to rotate, the rotating shaft will drive the cam to rotate at the same time. The cam will contact the arc-shaped part of the pressure block during the rotation process, causing the pressure block to drive the medicine storage plate to move. The medicine storage plate will vibrate to a certain extent, so that the reducing agent will fall into the sewage treatment pipeline through the first material distribution grooves on the surface of the medicine storage plate, realizing the automatic input function of the reducing agent. Moreover, the intermittent design of the intermittent gear and the driven gear is adopted, which can intermittently input the reducing agent, avoiding the problem of excessive one-time feeding and wasting raw materials.

[0015] Preferably, an elastic telescopic column is fixedly installed on the side wall of the medicine storage plate away from the pressure block. A telescopic spring is sleeved on the outer peripheral surface of the elastic telescopic column. A medicine dividing plate is installed on the inner wall of the medicine delivery pipe and below the medicine storage plate. A plurality of second material distribution grooves are formed on the surface of the medicine dividing plate. The shapes of the medicine dividing plate and the medicine storage plate are adapted to each other.

[0016] Preferably, a sewage treatment method for preparing activated zinc oxide uses the above-mentioned sewage treatment device for preparing activated zinc oxide; it includes the following steps:

[0017] S1. Connect the sewage treatment pipeline with an external treatment tank through a connecting pipeline, and introduce sewage into the sewage treatment pipeline;

[0018] S2. At the same time, introduce the prepared reducing agent into the sewage treatment pipeline through the medicine delivery pipeline. The reducing agent has functions such as adsorption and catalytic oxidation in sewage treatment and can effectively remove pollutants such as heavy metals and organic substances;

[0019] S3. Under the action of the medicine delivery pipe, the reducing agent can be intermittently conveyed.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. In the sewage treatment device and method for preparing active zinc oxide according to the present invention, since the other end face of the electromagnetic adsorption rod contacts the side wall of the scraper, the electromagnetic adsorption rod will gradually rotate into the square groove. When it rotates into the square groove, the scraper will continue to scrape the other end face of the electromagnetic adsorption rod. Therefore, under the interaction of the rectangular groove and the scraper, the remaining impurities on the surface of the electromagnetic adsorption rod can be removed. A recovery plate is provided below the sewage treatment pipeline, and metal impurities and other impurities will fall above the recovery plate. Subsequently, the staff can open the recovery plate to centrally process these fallen impurities.

[0022] 2. In the sewage treatment device and method for preparing active zinc oxide according to the present invention, during the rotation process, the cam will contact the arc of the pressure block, causing the pressure block to drive the medicine storage plate to move. The medicine storage plate will vibrate to a certain extent, so that the reducing agent will fall into the sewage treatment pipeline through the material distribution groove I on the surface of the medicine storage plate, realizing the automatic input function of the reducing agent. Moreover, the intermittent design of the intermittent gear and the driven gear is adopted, which can input the reducing agent intermittently, avoiding the problem of excessive one-time feeding and wasting raw materials. Brief Description of the Drawings

[0023] The present invention will be further described below with reference to the drawings.

[0024] Figure 1 is the three-dimensional view of the present invention;

[0025] Figure 2 is the schematic diagram of the internal structure of the sewage treatment pipeline in the present invention;

[0026] Figure 3 is the schematic diagram of the rotating column structure in the present invention;

[0027] Figure 4 is the schematic diagram of the vertical shaft structure in the present invention;

[0028] Figure 5 is the schematic diagram of the deflection rod structure in the present invention;

[0029] Figure 6 is the schematic diagram of the cross-sectional structure of the deflection rod in the present invention;

[0030] Figure 7 is the schematic diagram of the structure when the electromagnetic adsorption rod enters the rectangular groove in the present invention;

[0031] Figure 8 is the schematic diagram of the driven gear structure in the present invention;

[0032] Figure 9 is the schematic diagram of the medicine storage plate structure in the present invention;

[0033] Figure 10It is a schematic structural diagram when the first material distribution tank and the second material distribution tank in the present invention are combined;

[0034] Figure 11 It is a flowchart of the method in the present invention.

[0035] In the figure: 1, sewage treatment pipeline; 101, rotating column; 2, medicine delivery pipeline; 3, sedimentation tank; 4, medicine delivery pipe; 5, deflecting rod; 6, electromagnetic adsorption rod; 7, propeller blade; 8, rotational speed sensor; 9, rectangular groove; 10, rectangular adsorption plate; 11, electric telescopic column; 12, square groove; 121, scraper; 13, horizontal axis; 14, torsion spring; 15, vertical axis; 151, intermittent gear; 16, rotating shaft; 17, driven gear; 18, medicine storage plate; 19, pressure block; 20, cam; 21, first material distribution tank; 22, elastic telescopic column; 23, medicine dispensing plate; 231, second material distribution tank. Specific embodiments

[0036] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0037] As Figures 1 to 4 shown, a sewage treatment device for preparing activated zinc oxide according to an embodiment of the present invention includes a sewage treatment pipeline 1, above which a medicine delivery pipeline 2 is installed. The interior of the medicine delivery pipeline 2 stores a reducing agent. A sedimentation tank 3 is installed on the side of the sewage treatment pipeline 1. A plurality of rotating columns 101 are rotatably connected inside the sewage treatment pipeline 1, and the plurality of rotating columns 101 are arranged at intervals. A medicine delivery pipe 4 is installed on the lower end surface of the medicine delivery pipeline 2, and the medicine delivery pipe 4 is used for intermittently feeding the reducing agent. A cleaning mechanism is arranged on the outer peripheral surface of the rotating column 101, and the cleaning mechanism is used to remove ferromagnetic impurities in the sewage;

[0038] During operation, the sewage treatment pipeline 1 is connected to an external treatment tank through a connecting pipeline, and sewage is introduced into the sewage treatment pipeline 1. At the same time, the prepared reducing agent is introduced into the sewage treatment pipeline 1 through the medicine delivery pipeline 2. The reducing agent has functions such as adsorption and catalytic oxidation in sewage treatment, and can effectively remove pollutants such as heavy metals and organic substances. Moreover, under the action of the medicine delivery pipe 4, the reducing agent can be intermittently transported, so that not only the raw materials of the reducing agent are not wasted, but also it is beneficial to the treatment of sewage;

[0039] After that, the treated sewage will be introduced into the sedimentation tank 3 to facilitate subsequent further operations on it.

[0040] It should be noted that the medicine delivery pipeline 2 is externally connected to a pipeline for preparing the reducing agent, and the preparation method of the reducing agent is prior art in the embodiment of the present invention and will not be elaborated in detail here.

[0041] The cleaning mechanism includes a deflection rod 5 rotatably arranged on the outer peripheral surface of the rotating column 101. A plurality of deflection rods 5 are provided and are designed in a circumferential array on the outer peripheral surface of the rotating column 101. A plurality of electromagnetic adsorption rods 6 are arranged on the surface of the deflection rod 5, and the electromagnetic adsorption rods 6 are used to adsorb ferromagnetic impurities in the sewage.

[0042] During operation, when preparing activated zinc oxide, some metal impurities such as iron, copper, and lead will be doped in the preparation raw materials, and they will slowly form preparation waste and be discharged together with the sewage. Refer to the attached Figure 2 As shown in the figure, the rotating column 101 is designed at intervals inside the sewage treatment pipeline 1, and a plurality of deflection rods 5 and electromagnetic adsorption rods 6 are provided. When the sewage flows, it will pass through these deflection rods 5 and electromagnetic adsorption rods 6. Therefore, under the action of the electromagnetic adsorption rods 6, the ferromagnetic impurities in the sewage can be adsorbed, which is convenient for the subsequent sedimentation tank 3 to continue treating the sewage and improves the sewage treatment effect.

[0043] As Figures 2 to 5 shown in the figure, a plurality of propeller blades 7 are fixedly connected to the outer peripheral surface of the rotating column 101. The plurality of propeller blades 7 are designed in a circumferential array on the outer peripheral surface of the rotating column 101. A rotational speed sensor 8 is installed on the lower end surface of the rotating column 101. During operation, since the rotating column 101 is rotatably designed inside the sewage treatment pipeline 1 and the propeller blades 7 are designed on the outer peripheral surface of the rotating column 101, under the impact of the sewage, the rotating column 101 will rotate at a certain speed. At the same time, the rotating column 101 will drive the deflection rod 5 and the electromagnetic adsorption rod 6 to rotate synchronously. Therefore, the electromagnetic adsorption rods 6 at different positions will hook the larger impurities inside the sewage treatment pipeline 1, thus improving the treatment effect of the larger impurities.

[0044] It should be noted that a rotational speed sensor 8 is designed on the lower end surface of the rotating column 101. The rotational speed sensor 8 will monitor the rotational speed of the rotating column 101 in real time. If the rotating column 101 does not rotate, the rotational speed sensor 8 will generate a signal and transmit it to an external controller, and the rotating column 101 can be controlled to rotate through the external controller.

[0045] A rectangular groove 9 is formed inside each deflection rod 5. A rectangular adsorption plate 10 is slidably arranged inside the rectangular groove 9. The shape of the rectangular adsorption plate 10 is adapted to the shape of the rectangular groove 9. A plurality of electromagnetic adsorption rods 6 are rotatably designed in an array on the outer surface of the rectangular adsorption plate 10. During operation, refer to the attached Figure 4As shown, multiple electromagnetic adsorption rods 6 are provided, so as to facilitate the adsorption of metallic impurities existing in various aspects in the sewage. A rectangular groove 9 is opened inside the deflection rod 5. After the primary treatment of the sewage is completed, first control the electromagnetic adsorption rod 6 to be powered off. Then, the ferromagnetic impurities adsorbed on its surface will fall onto the inner wall of the sewage treatment pipeline 1. Subsequently, the rectangular adsorption plate 10 can slide into the interior of the rectangular groove 9 and drive the electromagnetic adsorption rod 6 to slide into the interior of the rectangular groove 9. When the groove wall of the rectangular groove 9 contacts the outer wall of the electromagnetic adsorption rod 6, the rectangular groove 9 has a certain limiting effect and can push out other impurities existing on the outer wall of the electromagnetic adsorption rod 6 that have not fallen, and they will fall into the sewage treatment pipeline 1, realizing the automatic recovery function of all impurities.

[0046] As Figures 3 to 7 shown, an electric telescopic column 11 is fixedly installed on the inner wall of each rectangular groove 9. The telescopic end of the electric telescopic column 11 is connected to the side wall of the rectangular adsorption plate 10. A plurality of square grooves 12 are opened on the outer peripheral surface of the rectangular adsorption plate 10. A horizontal axis 13 is fixedly connected to the inner wall of each square groove 12. Each electromagnetic adsorption rod 6 is respectively rotatably arranged on the outer peripheral surface of each horizontal axis 13. During operation, after the primary treatment of the sewage is completed, when it is necessary to treat the ferromagnetic impurities adsorbed on the outer wall of the electromagnetic adsorption rod 6, first control the electromagnetic adsorption rod 6 to be powered off. The external controller controls the telescopic end of the electric telescopic column 11 to drive the rectangular adsorption plate 10 to move towards the interior of the rectangular groove 9. During the movement of the rectangular adsorption plate 10 towards the interior of the rectangular groove 9, the outer wall of the rectangular adsorption plate 10 will contact the inner wall of the rectangular groove 9. Under the limitation of the two, the rectangular groove 9 will scrape off the impurities existing on the outer wall of the rectangular adsorption plate 10. And since the electromagnetic adsorption rod 6 is rotatably arranged on the outer peripheral surface of the horizontal axis 13, when the electromagnetic adsorption rod 6 moves to the inner wall of the rectangular groove 9, the inner wall of the rectangular groove 9 will simultaneously scrape off the remaining impurities that have not fallen on the outer wall of the electromagnetic adsorption rod 6, that is, the electromagnetic adsorption rod 6 changes from the attached Figure 5 and Figure 6 to the attached Figure 7 shown position, so as to facilitate the subsequent centralized treatment of all impurities and improve the sewage treatment effect.

[0047] A scraper 121 is arranged on the inner wall of the square groove 12. The side of the scraper 121 away from the square groove 12 contacts the side wall of the electromagnetic adsorption rod 6. The scraper 121 is rotatably arranged on the inner wall of the square groove 12 through a rotating column. A torsion spring 14 is arranged at the rotating connection of the scraper 121 and the square groove 12. A recovery plate is opened below the sewage treatment pipeline 1. During operation, when the electromagnetic adsorption rod 6 changes from the attached Figure 5 and Figure 6 to the attached Figure 7When in the shown position, since the electromagnetic adsorption rod 6 is rotatably arranged on the inner wall of the square groove 12, and when the electromagnetic adsorption rod 6 contacts the inner wall of the rectangular groove 9, the other end face of the electromagnetic adsorption rod 6 contacts the side wall of the scraper 121, the electromagnetic adsorption rod 6 will gradually rotate into the square groove 12. When it rotates into the square groove 12, the scraper 121 will continue to scrape the other end face of the electromagnetic adsorption rod 6. Therefore, under the interaction of the rectangular groove 9 and the scraper 121, the remaining impurities on the surface of the electromagnetic adsorption rod 6 can be removed. A recovery plate is arranged below the sewage treatment pipeline 1, and the metal impurities and the remaining impurities will fall above the recovery plate. Subsequently, the staff can open the recovery plate to centrally process these fallen impurities.

[0048] It should be noted that the sewage generated during the preparation process of activated zinc oxide usually contains zinc ions and other heavy metal ions, and these pollutants need to be treated by reduction with a reducing agent. In the embodiments of the present invention, the reducing agent can be sodium sulfide or sodium hydrosulfide, etc.

[0049] As Figures 3 to 10 As shown, a vertical shaft 15 is fixedly installed on the upper end face of each rotating column 101, and an intermittent gear 151 is fixedly installed on the outer peripheral surface of the top end of the vertical shaft 15. A rotating shaft 16 is rotatably arranged on the upper end face of the sewage treatment pipeline 1, and a driven gear 17 is fixedly installed on the upper end face of the rotating shaft 16. The intermittent gear 151 and the driven gear 17 are meshed and connected; during operation, when the rotating column 101 rotates, the rotating column 101 will drive the vertical shaft 15 on its upper end face to rotate simultaneously, the vertical shaft 15 drives the intermittent gear 151 to rotate, the intermittent gear 151 will drive the driven gear 17 meshed with it to rotate, the driven gear 17 will drive the rotating shaft 16 to rotate, and the rotating shaft 16 and the driven gear 17 will intermittently input the reducing agent inside the medicine delivery pipe 4 into the sewage treatment pipeline 1.

[0050] A medicine storage plate 18 is slidably arranged inside the medicine delivery pipe 4, a pressure block 19 is installed on the side wall of the medicine storage plate 18, a cam 20 is fixedly installed on the outer peripheral surface of the rotating shaft 16. During the process of the rotating shaft 16 driving the cam 20 to rotate, the protruding end of the cam 20 will contact the arc of the pressure block 19, and a plurality of material distribution grooves one 21 are formed on the surface of the medicine storage plate 18;

[0051] It should be noted that when the medicine delivery pipeline 2 conveys the reducing agent, the reducing agent will fall above the medicine storage plate 18 inside the medicine delivery pipe 4. Further, when the medicine delivery pipe 4 is specifically delivering medicine, that is, when the driven gear 17 drives the rotating shaft 16 to rotate, the rotating shaft 16 will simultaneously drive the cam 20 to rotate. The cam 20 will contact the arc of the pressure block 19 during the rotation process, causing the pressure block 19 to drive the medicine storage plate 18 to move. The medicine storage plate 18 will vibrate to a certain extent, so that the reducing agent will fall into the sewage treatment pipeline 1 through the material distribution groove one 21 on the surface of the medicine storage plate 18, realizing the automatic input function of the reducing agent. Moreover, the intermittent design of the intermittent gear 151 and the driven gear 17 is designed to intermittently input the reducing agent, avoiding the problem of excessive one-time feeding and wasting raw materials.

[0052] As Figures 6 to 10 shown, an elastic telescopic column 22 is fixedly installed on the side wall of the medicine storage plate 18 away from the pressure block 19. A telescopic spring is sleeved on the outer peripheral surface of the elastic telescopic column 22. A medicine distributing plate 23 is installed on the inner wall of the medicine delivery pipe 4 and below the medicine storage plate 18. A plurality of material distribution grooves two 231 are formed on the surface of the medicine distributing plate 23. The shapes of the medicine distributing plate 23 and the medicine storage plate 18 are adapted to each other. During operation, in the initial state, the material distribution groove one 21 on the surface of the medicine storage plate 18 and the material distribution groove two 231 on the surface of the medicine distributing plate 23 are in the positions as shown in the appendix Figure 9 shown, that is, the material distribution groove two 231 and the material distribution groove one 21 are not aligned. When the medicine storage plate 18 moves, the material distribution groove one 21 and the material distribution groove two 231 will move from the initial state to the position as shown in the appendix Figure 10 shown, that is, the material distribution groove two 231 and the material distribution groove one 21 will slowly align, so that the reducing agent will fall into the sewage treatment pipeline 1 from the aligned material distribution groove two 231 and material distribution groove one 21. In this way, not only can intermittent feeding be achieved, but also under the mutual extrusion and grinding of the medicine distributing plate 23 and the medicine storage plate 18, the reducing agent can be further ground, ensuring that the reducing agent in powder state can be combined with sewage to the greatest extent, improving the sewage treatment effect.

[0053] A method for treating sewage in the preparation of active zinc oxide, which uses the above-mentioned sewage treatment device for the preparation of active zinc oxide; includes the following steps:

[0054] S1. Connect the sewage treatment pipeline 1 with an external treatment tank through a connecting pipeline, and introduce sewage into the sewage treatment pipeline 1;

[0055] S2. At the same time, introduce the prepared reducing agent into the sewage treatment pipeline 1 through the medicine delivery pipeline 2. The reducing agent has functions such as adsorption and catalytic oxidation in sewage treatment, and can effectively remove pollutants such as heavy metals and organic substances;

[0056] S3. Under the action of the medicine delivery pipe 4, the reducing agent can be intermittently conveyed.

[0057] During operation, connect the sewage treatment pipeline 1 to an external treatment tank through a connecting pipeline, and introduce sewage into the sewage treatment pipeline 1. At the same time, introduce the prepared reducing agent into the sewage treatment pipeline 1 through the chemical feeding pipeline 2. The reducing agent has functions such as adsorption and catalytic oxidation in sewage treatment, can effectively remove pollutants such as heavy metals and organic substances, and can intermittently transport the reducing agent under the action of the chemical feeding pipe 4;

[0058] When preparing active zinc oxide, some metal impurities such as iron, copper, and lead will be doped in its preparation raw materials, and will slowly form preparation waste and be discharged together with the sewage. Refer to the attached Figure 2 As shown, the rotating columns 101 are designed at intervals inside the sewage treatment pipeline 1, and a plurality of deflecting rods 5 and electromagnetic adsorption rods 6 are provided. When the sewage flows, it will pass through these deflecting rods 5 and electromagnetic adsorption rods 6. Therefore, under the action of the electromagnetic adsorption rods 6, the ferromagnetic impurities in the sewage can be adsorbed, which is convenient for the subsequent sedimentation tank 3 to continue treating the sewage and improves the sewage treatment effect; after the primary sewage treatment is completed, first control the electromagnetic adsorption rods 6 to cut off the power, and then the ferromagnetic impurities adsorbed on their surfaces will fall to the inner wall of the sewage treatment pipeline 1. The rectangular adsorption plate 10 can slide into the rectangular groove 9, and can drive the electromagnetic adsorption rods 6 to slide into the rectangular groove 9. When the inner wall of the rectangular groove 9 contacts the outer wall of the electromagnetic adsorption rod 6, the rectangular groove 9 has a certain limiting effect, and can push out the other impurities that do not fall on the outer wall of the electromagnetic adsorption rod 6 and fall into the sewage treatment pipeline 1, realizing the automatic recovery function of all impurities;

[0059] After the primary sewage treatment is completed, when it is necessary to treat the ferromagnetic impurities adsorbed on the outer wall of the electromagnetic adsorption rod 6, the external controller controls the telescopic end of the electric telescopic column 11 to drive the rectangular adsorption plate 10 to move into the rectangular groove 9. During the movement of the rectangular adsorption plate 10 into the rectangular groove 9, the outer wall of the rectangular adsorption plate 10 will contact the inner wall of the rectangular groove 9. Under the limit of the two, the rectangular groove 9 will scrape off the impurities on the outer wall of the rectangular adsorption plate 10. And because the electromagnetic adsorption rod 6 is rotatably arranged on the outer peripheral surface of the cross shaft 13, when the electromagnetic adsorption rod 6 moves to the inner wall of the rectangular groove 9, the inner wall of the rectangular groove 9 will simultaneously scrape off the remaining impurities that do not fall on the outer wall of the electromagnetic adsorption rod 6, that is, the electromagnetic adsorption rod 6 changes from the attachment Figure 5 and Figure 6 to the position shown in the attachment Figure 7 This is convenient for subsequent centralized treatment of all impurities and improves the sewage treatment effect;

[0060] When the electromagnetic adsorption rod 6 changes from the attachment Figure 5 and Figure 6 to the attachment Figure 7When in the shown position, since the electromagnetic adsorption rod 6 is rotatably arranged on the inner wall of the square groove 12, and when the electromagnetic adsorption rod 6 contacts the inner wall of the rectangular groove 9, the other end face of the electromagnetic adsorption rod 6 contacts the side wall of the scraping plate 121, so the electromagnetic adsorption rod 6 will gradually rotate into the square groove 12. When it rotates into the square groove 12, the scraping plate 121 will continue to scrape the other end face of the electromagnetic adsorption rod 6. Therefore, under the interaction of the rectangular groove 9 and the scraping plate 121, the remaining impurities on the surface of the electromagnetic adsorption rod 6 can be removed. A recovery plate is arranged below the sewage treatment pipeline 1, and the metal impurities and the remaining impurities will fall above the recovery plate. Subsequently, the staff can open the recovery plate to centrally process these fallen impurities;

[0061] When the rotating column 101 rotates, the rotating column 101 will simultaneously drive the vertical shaft 15 on its upper end face to rotate. The vertical shaft 15 drives the intermittent gear 151 to rotate. The intermittent gear 151 will drive the driven gear 17 meshed with it to rotate. The driven gear 17 will drive the rotating shaft 16 to rotate. The rotating shaft 16 and the driven gear 17 will intermittently input the reducing agent inside the medicine delivery pipe 4 into the sewage treatment pipeline 1; When the medicine delivery pipe 4 is specifically delivering medicine, that is, when the driven gear 17 drives the rotating shaft 16 to rotate, the rotating shaft 16 will simultaneously drive the cam 20 to rotate. The cam 20 will contact the arc of the pressure block 19 during rotation, causing the pressure block 19 to drive the medicine storage plate 18 to move. The medicine storage plate 18 will vibrate to a certain extent, so that the reducing agent will fall into the sewage treatment pipeline 1 through the material distribution groove one 21 on the surface of the medicine storage plate 18, realizing the automatic input function of the reducing agent. Moreover, the intermittent design of the intermittent gear 151 and the driven gear 17 is designed to intermittently input the reducing agent, avoiding the problem of excessive one-time feeding and wasting raw materials;

[0062] In the initial state, the material distribution groove one 21 on the surface of the medicine storage plate 18 and the material distribution groove two 231 on the surface of the medicine dividing plate 23 are in the position as shown in the attachment Figure 9 That is, the material distribution groove two 231 and the material distribution groove one 21 are not aligned. When the medicine storage plate 18 moves, the material distribution groove one 21 and the material distribution groove two 231 will move from the initial state to the position shown in the attachment Figure 10 That is, the material distribution groove two 231 and the material distribution groove one 21 will slowly align, so that the reducing agent will fall into the sewage treatment pipeline 1 from the aligned material distribution groove two 231 and material distribution groove one 21. In this way, not only can intermittent feeding be achieved, but also under the mutual extrusion and grinding of the medicine dividing plate 23 and the medicine storage plate 18, the reducing agent can be further ground, ensuring that the reducing agent in powder state can be maximally combined with the sewage, improving the sewage treatment effect.

[0063] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for preparing activated zinc oxide, characterized in that: It includes a sewage treatment pipeline (1), above which a medicine delivery pipeline (2) is installed. A reducing agent is stored inside the medicine delivery pipeline (2). A sedimentation tank (3) is installed on the side of the sewage treatment pipeline (1). A plurality of rotating columns (101) are rotatably connected inside the sewage treatment pipeline (1). The plurality of rotating columns (101) are arranged at intervals. A medicine delivery pipe (4) is installed on the lower end face of the medicine delivery pipeline (2). The medicine delivery pipe (4) is used for intermittently feeding the reducing agent. A cleaning mechanism is arranged on the outer peripheral surface of the rotating column (101). The cleaning mechanism is used to remove ferromagnetic impurities in the sewage; The cleaning mechanism includes a deflecting rod (5) rotatably arranged on the outer peripheral surface of the rotating column (101). A plurality of deflecting rods (5) are provided and are arranged in a circumferential array on the outer peripheral surface of the rotating column (101). A plurality of electromagnetic adsorption rods (6) are arranged on the surface of the deflecting rod (5). The electromagnetic adsorption rods (6) are used to adsorb ferromagnetic impurities in the sewage; A rectangular groove (9) is formed inside each deflecting rod (5). A rectangular adsorption plate (10) is slidably arranged inside the rectangular groove (9). The shape of the rectangular adsorption plate (10) is adapted to the shape of the rectangular groove (9). A plurality of electromagnetic adsorption rods (6) are rotatably arranged in an array on the outer surface of the rectangular adsorption plate (10); An electric telescopic column (11) is fixedly installed on the inner wall of each rectangular groove (9). The telescopic end of the electric telescopic column (11) is connected to the side wall of the rectangular adsorption plate (10). A plurality of square grooves (12) are formed on the outer peripheral surface of the rectangular adsorption plate (10). A horizontal shaft (13) is fixedly connected to the inner wall of each square groove (12). Each electromagnetic adsorption rod (6) is rotatably arranged on the outer peripheral surface of each horizontal shaft (13); A scraper (121) is arranged on the inner wall of the square groove (12). The side of the scraper (121) away from the square groove (12) is in contact with the side wall of the electromagnetic adsorption rod (6). The scraper (121) is rotatably arranged on the inner wall of the square groove (12) through a rotating column. A torsion spring (14) is arranged at the rotating connection of the scraper (121) and the square groove (12). A recovery plate is provided below the sewage treatment pipeline (1).

2. The sewage treatment device for preparing activated zinc oxide according to claim 1, wherein: A plurality of propeller blades (7) are fixedly connected to the outer peripheral surface of the rotating column (101). The plurality of propeller blades (7) are arranged in a circumferential array on the outer peripheral surface of the rotating column (101). A rotational speed sensor (8) is installed on the lower end face of the rotating column (101).

3. The sewage treatment device for preparing activated zinc oxide according to claim 1, characterized in that: A vertical shaft (15) is fixedly installed on the upper end face of each rotating column (101). An intermittent gear (151) is fixedly installed on the outer peripheral surface of the top of the vertical shaft (15). A rotating shaft (16) is rotatably arranged on the upper end face of the sewage treatment pipeline (1). A driven gear (17) is fixedly installed on the upper end face of the rotating shaft (16). The intermittent gear (151) is meshed with the driven gear (17).

4. The sewage treatment device for preparing active zinc oxide according to claim 3, characterized in that: A medicine storage plate (18) is slidably arranged inside the medicine delivery pipe (4). A pressure block (19) is installed on the side wall of the medicine storage plate (18). A cam (20) is fixedly installed on the outer peripheral surface of the rotating shaft (16). During the process of the rotating shaft (16) driving the cam (20) to rotate, the convex end of the cam (20) will contact the arc of the pressure block (19). A plurality of first material distribution grooves (21) are formed on the surface of the medicine storage plate (18).

5. The sewage treatment device for preparing activated zinc oxide according to claim 4, characterized in that: An elastic telescopic column (22) is fixedly installed on the side wall of the medicine storage plate (18) away from the pressure block (19). A telescopic spring is sleeved on the outer peripheral surface of the elastic telescopic column (22). A medicine dividing plate (23) is installed on the inner wall of the medicine delivery pipe (4) and below the medicine storage plate (18). A plurality of second material distribution grooves (231) are formed on the surface of the medicine dividing plate (23). The shapes of the medicine dividing plate (23) and the medicine storage plate (18) are adapted to each other.

6. A sewage treatment method for preparing active zinc oxide, which uses a sewage treatment device for preparing active zinc oxide described in any one of claims 1-5; characterized in that: Including the following steps: S1. Connect the sewage treatment pipeline (1) with an external treatment tank through a connecting pipeline, and introduce sewage into the sewage treatment pipeline (1); S2. At the same time, introduce the prepared reducing agent into the sewage treatment pipeline (1) through the medicine delivery pipeline (2); S3. Under the action of the medicine delivery pipe (4), the reducing agent can be intermittently transported.

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