A terramycin production wastewater air floatation treatment device

Abstract

The utility model relates to terramycin production technical field, concretely is a kind of terramycin production wastewater air floatation treatment device, reaction tank is fixedly connected with complex mixing box, sewage pipe is communicated with static mixer, sewage pump is fixedly connected on the pipeline of the other end of static mixer, first medicine box is connected with static mixer by first medicine pipe, the stirring mechanism, flocculating agent discharge pipe are all arranged in complex mixing box, the bottom of the inside of the separation tank is obliquely arranged towards sludge discharge pipe, mud scraping device is rotatably arranged in the separation tank. The utility model can make sewage and coagulant preliminary mixing by setting static mixer, by setting complex mixing box in reaction tank, it can be convenient for sewage and flocculating agent to mix, improve the mixing effect of sewage and coagulant, flocculating agent, by setting accessible mud scraping plate in the bottom of separation tank, can avoid excessive silt deposition, and the cleaning of silt is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of oxytetracycline production technology, specifically to an air flotation treatment device for oxytetracycline production wastewater. Background Technology

[0002] Oxytetracycline, these pale yellow tablets or sugar-coated tablets, belong to the tetracycline class of antibiotics and are widely used to treat rickettsial diseases, such as epidemic typhus and endemic typhus. Its production process includes several key steps such as fermentation, acidification filtration, decolorization crystallization, and centrifugal drying. The wastewater generated during oxytetracycline production also requires appropriate treatment to meet discharge standards. Due to its high concentration, high color, and unstable quality, effective and stable treatment is crucial. For substances like oxytetracycline in the wastewater that have some toxicity, flocculation technology is typically used. Flocculants such as aluminum sulfate, ferrous polysulfate, PAM, and lime combine with the active groups of antibiotic molecules, such as -NH and -OH, to form insoluble complexes. Currently used oxytetracycline wastewater flotation treatment devices typically only remove scum floating on the surface. After prolonged use, a layer of sludge settles at the bottom of the flotation tank, which is difficult to remove and may clog the drainage pipes. Therefore, there is a need to develop an air flotation treatment device for oxytetracycline production wastewater that can treat the sludge deposited at the bottom of the air flotation tank. Utility Model Content

[0003] To address the above technical problems, this utility model provides an air flotation treatment device for oxytetracycline production wastewater that can treat the sediment at the bottom of the air flotation tank, thereby solving the problem that the sediment at the bottom of existing air flotation treatment devices is difficult to treat.

[0004] To solve the above-mentioned technical problems, the present invention provides an air flotation treatment device for oxytetracycline production wastewater, comprising a reaction tank and a separation tank. The reaction tank is equipped with a stirring mechanism and a flocculant discharge pipe. The flocculant discharge pipe is connected to a second chemical tank via a second chemical pipe. A second chemical pump and a valve are fixedly connected to the second chemical pipe. The reaction tank is connected to the separation tank. A scum scraper is installed at the top of the separation tank. A scum discharge port is opened at a position corresponding to the output end of the scum scraper in the separation tank. A scum receiving box is fixedly connected to the outside of the separation tank at a position corresponding to the scum discharge port. A fixed connection is made to the lower part of one side of the separation tank. A clean water pipe is connected to the reaction tank, and a mixing tank is fixedly connected inside the reaction tank. The mixing tank has an outlet at the top and is open at the bottom. A sewage pipe runs from bottom to top through the reaction tank and extends into the mixing tank. The sewage pipe is connected to a static mixer. A sewage pump is fixedly connected to the pipe at the other end of the static mixer. A first chemical tank is connected to the static mixer through a first chemical pipe. A first chemical pump and a valve are fixedly connected to the first chemical pipe. The stirring mechanism and flocculant discharge pipe are both located inside the mixing tank. The bottom of the separation tank is inclined towards the sludge discharge pipe. A sludge scraper is rotatably installed inside the separation tank.

[0005] Furthermore, the stirring mechanism includes a stirring motor and a stirring paddle. The stirring motor is fixedly connected to the top of the reaction tank, and the stirring paddle is rotatably disposed inside the mixing tank. The upper end of the stirring paddle is fixedly connected to the output end of the stirring motor.

[0006] Furthermore, the sludge scraping device includes a sludge scraping motor, a rotating shaft, and a sludge scraping blade. The sludge scraping motor is fixedly connected to the top of the separation tank, the output end of the sludge scraping motor is fixedly connected to the rotating shaft, and the sludge scraping blade is fixedly connected to the rotating shaft. The sludge scraping blade is in contact with the bottom wall of the separation tank.

[0007] Furthermore, an aeration tank is provided between the reaction tank and the separation tank. An aeration disc is fixedly connected to the bottom of the aeration tank. The aeration disc is connected to the output end of the compressed air tank through an air supply pipe. An air supply pump and valve are fixedly connected to the air supply pipe.

[0008] Furthermore, a pneumatic pusher pipe is fixedly connected to the side of the separation tank opposite to the slag discharge port. The pneumatic pusher pipe is fixedly connected to the output end of a high-pressure air pump through an air inlet pipe. Several air outlet nozzles are fixedly connected to the pneumatic pusher pipe facing the slag discharge port.

[0009] This utility model has the following advantages compared with the prior art:

[0010] 1. This utility model enables the initial mixing of sewage and coagulant by setting a static mixer. By setting a compound mixing box in the reaction tank, it is possible to facilitate the mixing of sewage and flocculant, thereby improving the mixing effect of sewage, coagulant and flocculant. By setting an accessible scraper at the bottom of the separation tank, it is possible to avoid excessive sludge deposition and facilitate sludge cleaning.

[0011] 2. This utility model, by setting up an aeration tank and installing aeration discs inside the aeration tank, can fully aerate the sewage, allowing the flocculated impurities to fully contact the air bubbles and float to the surface, thereby improving the efficiency and effect of air flotation treatment.

[0012] 3. This utility model, by setting up a pneumatic pusher pipe and connecting it to a high-pressure air pump through an air inlet pipe, can blow the scum and move it toward the scum discharge port, thereby improving the scum removal efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Static mixer, 2. Reaction tank, 3. Aeration tank, 4. Separation tank, 5. Compound mixing tank, 6. Agitator, 7. Agitator motor, 8. Sewage pipe, 9. Sewage pump, 10. First chemical pipe, 11. First chemical pump, 12. First chemical tank, 13. Flocculant drain pipe, 14. Second chemical pipe, 15. Second chemical pump, 16. Second chemical tank, 17. Compressed air tank, 18. Air supply pipe, 19. Air pump, 20. Aeration disc, 21. Scum scraper, 22. Scum receiving box, 23. Rotating shaft, 24. Sludge scraper motor, 25. Sludge scraper, 26. Sludge discharge pipe, 27. Clean water pipe, 28. Pneumatic pusher pipe, 29. High-pressure air pump, 30. Air inlet pipe. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Based on the problems of sludge deposition and poor flotation effect in the wastewater flotation treatment device used in the company's current oxytetracycline product production process, a wastewater flotation treatment device is designed to avoid sludge deposition and improve the flotation treatment effect, such as... Figure 1The device shown is an air flotation treatment device for oxytetracycline production wastewater, including an air flotation tank. A reaction tank 2, an aeration tank 3, and a separation tank 4 are sequentially arranged inside the air flotation tank. The lower part of the reaction tank 2 is connected to the aeration tank 3, and the lower part of the aeration tank 3 is connected to the separation tank 4. A static mixer 1 for adding and mixing coagulants is also provided. The inlet end of the static mixer 1 is connected to the wastewater source via a pipe, and a wastewater pump 9 is connected to this pipe. The outlet end of the static mixer 1 is connected to a wastewater pipe 8, which extends from bottom to top through the reaction tank 2 into its interior. A first chemical tank 12 is connected to the static mixer 1 via a first chemical pipe 10. A first chemical pump 11 and a valve are fixedly connected to the first chemical pipe 10. A sealing gasket is provided at the connection between the wastewater pipe 8 and the reaction tank 2 to prevent leakage.

[0017] The reaction tank 2 is equipped with a stirring mechanism and a flocculant drain pipe 13 for adding and mixing flocculant. The flocculant drain pipe 13 is a ring-shaped pipe structure with several through holes spaced apart at the top. The flocculant drain pipe 13 is connected to the second medicine tank 16 through the second medicine pipe 14. The second medicine pump 15 and valve are fixedly connected to the second medicine pipe 14. The mixing tank 5 is fixedly connected to the reaction tank 2 through a connecting frame and bolts. The mixing tank 5 has an outlet at the top and is open at the bottom. The sewage pipe 8 extends into the mixing tank 5. The stirring mechanism and the flocculant drain pipe 13 are both set in the mixing tank 5. The stirring mechanism includes a stirring motor 7 and a stirring paddle 6. The stirring motor 7 is fixedly connected to the top of the reaction tank 2. The stirring paddle 6 is rotatably set in the mixing tank 5. The stirring shaft of the stirring paddle 6 is rotatably connected to the mixing tank 5 and the reaction tank 2 through bearings. The upper end of the stirring shaft of the stirring paddle 6 is fixedly connected to the output end of the stirring motor 7.

[0018] To facilitate scum removal, a scum scraper 21 is installed at the top of the separation tank 4. The scum scraper 21 is an existing device driven by a motor. Its structure is similar to that of a chain conveyor. A scum discharge port is located at the corresponding position of the output end of the scum scraper 21 on the outer side of the separation tank 4, below the discharge port. A scum receiving box 22 is connected to the bottom of the scum receiving box 22, and a scum discharge pipe is connected thereto. During operation, clean water is used for thorough scum removal. A clean water supply is fixedly connected to the lower side of one side of the separation tank 4. Pipe 27 is inclined towards the bottom of the separation tank 4 and the sludge discharge pipe 26. A sludge scraping device is rotatably installed inside the separation tank 4. The sludge scraping device includes a sludge scraping motor 24, a rotating shaft 23, and a sludge scraping plate 25. The sludge scraping motor 24 is fixedly connected to the top of the separation tank 4 through a connecting frame and bolts. The output end of the sludge scraping motor 24 is fixedly connected to the rotating shaft 23. The rotating shaft 23 is rotatably connected to the upper part of the separation tank 4 through a bearing. The sludge scraping plate 25 is fixedly connected to the rotating shaft 23. The sludge scraping plate 25 contacts the bottom wall of the separation tank 4. The sludge scraping plate 25 can be made of rubber or metal.

[0019] To ensure that the impurities after flocculation can be fully encapsulated by air bubbles and float to the water surface, an aeration disc 20 is fixedly connected to the bottom of the aeration tank 3. Several air jets are fixedly connected to the top of the aeration disc 20. The bottom of the aeration disc 20 is connected to the output end of the compressed air tank 17 through an air supply pipe 18. The input end of the compressed air tank 17 is connected to an air compressor. An air pump 19 and a valve are fixedly connected to the air supply pipe 18. Since the air supply pipe 18 is set through the bottom of the aeration tank 3, the connection between the air supply pipe 18 and the aeration tank 3 is connected by a sealing gasket.

[0020] During use, due to the limitation of the rotating shaft 23, the scum scraper 21 in the separation tank 4 can only be set on the side close to the scum discharge port, resulting in a decrease in scum discharge efficiency and effect. Therefore, in order to overcome this problem and ensure scum discharge efficiency and effect, a pneumatic pusher pipe 28 is fixedly connected to the connection port between the aeration tank 3 and the separation tank 4 through a connecting frame in the aeration tank 3. The position of the pneumatic pusher pipe 28 is corresponding to the scum discharge port. The pneumatic pusher pipe 28 is fixedly connected to the output end of the high-pressure air pump 29 through the air inlet pipe 30. Several air outlet nozzles are fixedly connected at intervals on the pneumatic pusher pipe 28 facing the scum discharge port side. During the air flotation scum discharge process, the pneumatic pusher is used to blow the scum to the scum discharge port side for cleaning.

[0021] The working principle of this embodiment is as follows:

[0022] During the treatment of oxytetracycline production wastewater, the staff prepares the coagulant in the first reagent tank 12 and the flocculant in the second reagent tank 16 in advance. The wastewater pump 9 is started to pump the wastewater into the static mixer 1. Simultaneously, the valve on the first reagent pipe 10 is opened and the first reagent pump 11 is started, allowing the coagulant to be added to the static mixer 1. After initial mixing, the wastewater enters the mixing tank 5 through the wastewater pipe 8. The stirring motor 7 is started, driving the stirring paddle 6 to stir within the mixing tank 5. Simultaneously, the valve on the second reagent pipe 14 is opened and the second reagent pump 15 is started, allowing the flocculant to be sprayed from the flocculant discharge pipe 13 and mixed with the wastewater. The mixed wastewater continuously enters the reaction tank 2 while flowing out from the top of the mixing tank 5 and into the aeration tank 3. At the same time, the valve on the air supply pipe 18 is opened and the air pump 19 is started to aerate the wastewater. After aeration, the wastewater enters the separation tank 4. The scum scraper 21 is activated, scraping the scum from the discharge port into the scum collection box 22. Simultaneously, the high-pressure air pump 29 is activated, blowing high-pressure gas through the air inlet pipe 30 into the pneumatic push pipe 28 and out through the air outlet nozzle, moving the scum towards the discharge port. After scum removal, the water can be drained to the next treatment stage by opening the valve on the clear water pipe 27. Then, the valve on the sludge discharge pipe 26 is opened, and the sludge scraper motor 24 is activated, driving the rotating shaft 23 and scraper blade 25 to rotate. The scraper blade 25 scrapes the sludge deposited at the bottom of the separation tank 4, allowing it to be discharged from the sludge discharge pipe 26 along with some residual water. During wastewater treatment, the scraper motor 24 can be controlled to run slowly, driving the scraper blade 25 to scrape the bottom of the separation tank 4, preventing sludge deposition. During the wastewater treatment process, the valves on each pipeline are opened and closed by personnel according to actual conditions.

Claims

1. A flotation treatment device for oxytetracycline production wastewater, comprising a reaction tank (2) and a separation tank (4), wherein the reaction tank (2) is connected to the separation tank (4), and the reaction tank (2) is provided with a stirring mechanism and a flocculant discharge pipe (13), the flocculant discharge pipe (13) being connected to a second medicine tank (16) via a second medicine pipe (14), a second medicine pump (15) and a valve being fixedly connected to the second medicine pipe (14), a scum scraper (21) being provided on the upper part of the separation tank (4), a scum discharge port being provided at the position corresponding to the output end of the scum scraper (21) in the separation tank (4), a scum receiving box (22) being fixedly connected to the outer side of the separation tank (4) at the position corresponding to the scum discharge port, and a clear water pipe (27) being fixedly connected to the lower part of one side of the separation tank (4), characterized in that: A mixing tank (5) is fixedly connected inside the reaction tank (2). The mixing tank (5) has an outlet at the top and an open bottom. A sewage pipe (8) extends from bottom to top through the reaction tank (2) into the mixing tank (5). The sewage pipe (8) is connected to a static mixer (1). A sewage pump (9) is fixedly connected to the pipe at the other end of the static mixer (1). A first medicine tank (12) is connected to the static mixer (1) through a first medicine pipe (10). A first medicine pump (11) and a valve are fixedly connected to the first medicine pipe (10). The stirring mechanism and the flocculant discharge pipe (13) are both located inside the mixing tank (5). The bottom of the separation tank (4) is inclined toward the sludge discharge pipe (26). A sludge scraping device is rotatably installed inside the separation tank (4).

2. The air flotation treatment device for oxytetracycline production wastewater according to claim 1, characterized in that: The stirring mechanism includes a stirring motor (7) and a stirring paddle (6). The stirring motor (7) is fixedly connected to the top of the reaction tank (2), and the stirring paddle (6) is rotatably disposed in the compound mixing tank (5). The upper end of the stirring paddle (6) is fixedly connected to the output end of the stirring motor (7).

3. The air flotation treatment device for oxytetracycline production wastewater according to claim 1, characterized in that: The sludge scraping device includes a sludge scraping motor (24), a rotating shaft (23), and a sludge scraping plate (25). The sludge scraping motor (24) is fixedly connected to the top of the separation tank (4). The output end of the sludge scraping motor (24) is fixedly connected to the rotating shaft (23). The sludge scraping plate (25) is fixedly connected to the rotating shaft (23). The sludge scraping plate (25) is in contact with the bottom wall of the separation tank (4).

4. The air flotation treatment device for oxytetracycline production wastewater according to claim 1, characterized in that: An aeration tank (3) is provided between the reaction tank (2) and the separation tank (4). An aeration disc (20) is fixedly connected to the bottom of the aeration tank (3). The aeration disc (20) is connected to the output end of the compressed air tank (17) through an air supply pipe (18). An air supply pump (19) and a valve are fixedly connected to the air supply pipe (18).

5. The air flotation treatment device for oxytetracycline production wastewater according to claim 1, characterized in that: A pneumatic push pipe (28) is fixedly connected to the side opposite to the slag discharge port in the separation tank (4). The pneumatic push pipe (28) is fixedly connected to the output end of the high-pressure air pump (29) through the air inlet pipe (30). Several air outlet nozzles are fixedly connected to the pneumatic push pipe (28) facing the slag discharge port.

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