A device for advanced treatment of wastewater containing methylmorpholine

Abstract

The utility model relates to wastewater treatment technical field, concretely relates to a kind of methylmorpholine-containing production wastewater advanced treatment device, including support frame, pretreatment device, dosing device and stirring device, support frame upper portion is equipped with pretreatment device, the pretreatment device is used to carry out sedimentation treatment to production wastewater;The dosing device is installed in the pretreatment device side, the dosing device is used to send the production wastewater after sedimentation to the stirring device inside while dosing to stirring device interior;The stirring device is installed in the pretreatment device below, the stirring device is used to stir after dosing production wastewater, and then ph adjustment is completed.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a deep treatment device for production wastewater containing methylmorpholine. Background Technology

[0002] Methylmorpholine compounds, as important pharmaceutical and fine chemical intermediates, generate wastewater that is highly toxic, has high COD concentration, and high salinity, making it a typical category of recalcitrant industrial wastewater. Current mainstream treatment processes generally employ a combined approach of "physicochemical pretreatment + biological treatment." The pretreatment stage requires methods such as sedimentation and pH adjustment to reduce wastewater toxicity and improve biodegradability. The operational stability of this stage directly determines whether the subsequent biological system can start normally and whether the final effluent meets standards. The core problem with existing pretreatment devices lies in the separate design of the three functional units: sedimentation, dosing, and mixing. The sedimentation tank, dosing device, and pH adjustment tank are each independently set up, connected by pump pipelines. This separate structure results in a large footprint, easy secondary pollution from wastewater transfer, uneven reagent mixing, and low automation, severely limiting pretreatment efficiency and system stability, making it difficult to meet the continuous wastewater discharge requirements of modern industry.

[0003] Therefore, this invention provides a deep treatment device for production wastewater containing methylmorpholine to solve the above problems. Utility Model Content

[0004] The technical problem this invention aims to solve is as follows: The core issue with existing pretreatment devices lies in the separate design of the three functional units: sedimentation, dosing, and mixing. Specifically, the sedimentation tank, dosing device, and pH adjustment tank are each independently set up, connected by pump pipelines. This separate structure results in a large footprint, easy secondary pollution from wastewater transfer, uneven reagent mixing, and low automation, severely limiting pretreatment efficiency and system stability, and making it difficult to meet the continuous drainage requirements of modern industry.

[0005] This utility model provides the following technical solution: a deep treatment device for production wastewater containing methylmorpholine, comprising a support frame, a pretreatment device, a dosing device, and a stirring device. The pretreatment device is installed above the support frame and is used to perform sedimentation treatment on the production wastewater. The dosing device is installed on one side of the pretreatment device and is used to simultaneously transport the sedimented production wastewater into the stirring device and add chemicals into the stirring device. The stirring device is installed below the pretreatment device and is used to stir the production wastewater after chemical addition, thereby achieving pH adjustment.

[0006] Preferably, the pretreatment device includes a treatment tank, a feed pipe, a discharge port, and a first filter screen. The treatment tank is mounted on the support frame, the feed pipe is fixedly installed above the treatment tank, the discharge port is opened below the treatment tank, and a first filter screen is provided at the discharge port.

[0007] Preferably, a fixing frame is fixedly installed on the support frame, and a fixing hole is opened on the fixing frame. Fixing shafts are symmetrically installed on the processing barrel. The fixing shafts are rotatably installed in the fixing hole. A fixing ear is fixedly installed on the side of the processing barrel away from the feed inlet. One end of a first telescopic rod is hinged to the fixing ear, and the other end of the first telescopic rod is rotatably installed on the support frame.

[0008] Preferably, the dosing device includes a dosing tank, a delivery pipe, a uniform distribution chamber, and a dispensing hole. The dosing tank is fixedly installed on the processing tank. A delivery pipe is fixedly installed on one side of the dosing tank. The delivery pipe has a hollow structure and is connected to the dosing tank. A uniform distribution chamber is fixedly installed at the other end of the delivery pipe. Dispensing holes are arrayed at the bottom of the uniform distribution chamber.

[0009] Preferably, a water supply pipe is fixedly installed on the discharge port, and a water supply chamber is fixedly installed on the water supply pipe. The water supply chamber is located at the bottom of the uniform medicine chamber, and water outlet holes are arrayed at the bottom of the water supply chamber.

[0010] Preferably, the stirring device includes a stirring tank, a liquid inlet, a stirring motor, a stirring rod, stirring arms, and a discharge pipe. The stirring tank is fixedly installed on the support frame. The stirring tank has a liquid inlet and a stirring motor is fixedly installed above the stirring tank. A stirring rod is fixedly installed at the output end of the stirring motor. Stirring arms are fixedly installed in an array on the stirring rod. A discharge pipe is fixedly installed at the bottom of the stirring tank.

[0011] Preferably, a flow guide groove is fixedly installed on the liquid inlet, and a second filter screen is fixedly installed at the bottom of the flow guide groove.

[0012] Preferably, a liquid level sensor is fixedly installed inside the mixing tank.

[0013] Preferably, a mechanical valve is installed on the discharge pipe.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model integrates the treatment tank, dosing tank, and mixing tank into a support frame, forming a linked tilting structure. This achieves continuous operation of sedimentation, filtration, dosing, mixing, and discharge processes, significantly improving pretreatment efficiency and automation. The symmetrical tilting fulcrum, using a fixed shaft and telescopic rod, ensures balanced force distribution and stable operation of the tank. Simultaneously, the tilted gravity of the tank enables automatic wastewater discharge and simultaneous chemical dosing, eliminating the need for a transfer pump and independent dosing system, significantly reducing equipment footprint and energy consumption. The water delivery tank and the chemical mixing tank utilize an array of perforations at their bottoms... The top-and-bottom counter-flushing design ensures that wastewater and chemical solutions are evenly mixed before falling into the guide tank. Combined with the thorough stirring of the array-type stirring arms, this effectively improves the uniformity of pH adjustment and the reaction rate. The multi-stage filter screen integrated into the discharge port and liquid inlet achieves tiered interception of sediments and suspended impurities, preventing pipeline blockage and equipment wear. The interlocking control of the liquid level sensor and mechanical valves can accurately maintain the optimal liquid level in the mixing tank, preventing wastewater splashing and ensuring sufficient reaction. The overall structure is compact and reliable, reducing secondary transfer pollution and operation and maintenance costs, and providing stable and high-quality influent water for subsequent biochemical treatment. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram showing the installation position of the No. 1 filter screen of this utility model; Figure 4 This is a schematic diagram of the dosing device and stirring device of this utility model; Figure 5 This is a schematic diagram of the internal structure of the stirring device of this utility model.

[0017] In the diagram: 1. Support frame; 11. Fixing frame; 12. Fixing hole; 13. Fixing shaft; 14. Fixing lug; 2. Pretreatment device; 21. Treatment tank; 22. Feed pipe; 23. Discharge port; 231. Water supply pipe; 232. Water supply chamber; 233. Water outlet; 24. No. 1 filter screen; 3. Dosing device; 31. Dosing tank; 32. Dosing pipe; 33. Dosing chamber; 34. Dosing port; 4. Stirring device; 41. Stirring tank; 42. Liquid inlet; 43. Stirring motor; 44. Stirring rod; 45. Stirring arm; 46. Discharge pipe; 5. No. 1 telescopic rod; 6. Guide channel; 7. No. 2 filter screen; 8. Liquid level sensor; 9. Mechanical valve. Detailed Implementation

[0018] like Figures 1 to 5 As shown, a deep treatment device for industrial wastewater containing methylmorpholine is characterized by comprising a support frame 1, a pretreatment device 2, a dosing device 3, and a stirring device 4. The pretreatment device 2 is installed above the support frame 1 and is used to perform sedimentation treatment on the industrial wastewater. The dosing device 3 is installed on one side of the pretreatment device 2 and is used to simultaneously transport the sedimented industrial wastewater into the stirring device 4 and add chemicals into the stirring device 4. The stirring device 4 is installed below the pretreatment device 2 and is used to stir the industrial wastewater after chemical addition, thereby achieving pH adjustment. By integrating the treatment tank 21, dosing tank 31, and mixing tank 41 into the support frame 1 and forming a linked tilting structure, continuous operation of sedimentation, filtration, dosing, mixing, and discharge processes is achieved, significantly improving pretreatment efficiency and automation level. The symmetrical tilting fulcrum, using a fixed shaft 13 and a telescopic rod, ensures balanced force distribution and stable operation of the tanks. Simultaneously, the tilting gravity of the tanks enables automatic wastewater discharge and synchronous chemical dosing, eliminating the need for a transfer pump and independent dosing system, significantly reducing equipment footprint and energy consumption. The water delivery tank 232 and the bottom array of holes in the chemical mixing tank 33 are connected vertically. The counter-flushing design ensures that wastewater and chemical solution are evenly mixed and fall into the guide tank 6. Combined with the thorough stirring of the array-type stirring arms 45, it effectively improves the uniformity of pH adjustment and reaction rate. The multi-stage filter screen integrated into the discharge port 23 and the liquid inlet 42 achieves tiered interception of sediments and suspended impurities, eliminating pipeline blockage and equipment wear. The interlocking control of the liquid level sensor 8 and the mechanical valve 9 can accurately maintain the optimal liquid level in the stirring tank 41, prevent wastewater splashing and ensure sufficient reaction. The overall structure is compact and reliable, reducing secondary transfer pollution and operation and maintenance costs, and providing stable and high-quality influent water for subsequent biochemical treatment.

[0019] like Figures 1 to 4As shown, the pretreatment device 2 includes a treatment tank 21, a feed pipe 22, a discharge port 23, and a first filter screen 24. The treatment tank 21 is mounted on the support frame 1 and is used for sedimentation pretreatment of wastewater. The feed pipe 22 is fixedly installed above the treatment tank 21 and is used to transport production wastewater into the treatment tank 21. The discharge port 23 is provided at the bottom of the treatment tank 21 and is used to tilt and transport the settled wastewater into the mixing tank 41. A first filter screen 24 is provided at the discharge port 23 and is used to perform preliminary filtration of the wastewater when the settled wastewater is poured out of the treatment tank 21. During operation, the staff transports the production wastewater containing methylmorpholine to the treatment tank 21 through the feed pipe 22. The wastewater undergoes sedimentation pretreatment in the treatment tank 21. After sedimentation is completed, the first telescopic rod 5 is activated to drive the treatment tank 21 to tilt. The settled wastewater is initially filtered by the first filter screen 24 at the discharge port 23 and then transported to the mixing tank 41 through the water conveying pipe 231 and the water conveying chamber 232. The sedimentation, filtration, and conveying functions are integrated into a tiltable treatment tank 21. The tilting of the tank enables automatic discharge and preliminary filtration of the wastewater after sedimentation, eliminating the need for a separate transfer pump and pipeline. The compact structure and small footprint significantly reduce equipment investment and operating energy consumption. The first filter screen 24 simultaneously traps suspended impurities during the tilting process, effectively preventing clogging of subsequent pipelines and the stirring device 4, thus improving the stability of system operation. The use of a telescopic rod to drive the tilting of the tank for discharge enables continuous linkage of sedimentation, filtration, and conveying processes, avoiding secondary pollution and efficiency loss during wastewater transfer between tanks, and improving the automation level and treatment efficiency of the pretreatment stage.

[0020] like Figure 4 As shown, a fixed frame 11 is fixedly installed on the support frame 1, and a fixed hole 12 is provided on the fixed frame 11. Fixed shafts 13 are symmetrically installed on the processing tank 21, and the fixed shafts 13 are rotatably installed in the fixed holes 12. A fixed ear 14 is fixedly installed on the side of the processing tank 21 away from the feed inlet. One end of a first telescopic rod 5 is hinged to the fixed ear 14, and the other end of the first telescopic rod 5 is rotatably installed on the support frame 1. The above support structure uses the fixed frame 11, the fixed hole 12 and the fixed shaft 13 to form a symmetrical rotation fulcrum, ensuring that the force is balanced and the operation is stable when the processing tank 21 tilts, which significantly improves the structural strength and anti-overturning ability of the device. Through the hinged drive of the telescopic rod and the fixed ear 14, the precise control and automated operation of the tank tilting angle are realized, avoiding the safety risks of manual material discharge operation and improving the automation level and operation convenience of the pretreatment process.

[0021] like Figures 1 to 4As shown, the dosing device 3 includes a dosing tank 31, a delivery pipe 32, a uniform distribution chamber 33, and a dispensing hole 34. The dosing tank 31 is fixedly installed on the processing tank 21 and is used to store the liquid medicine. The delivery pipe 32 is fixedly installed on one side of the dosing tank 31 and is used to transport the liquid medicine into the uniform distribution chamber 33. The delivery pipe 32 has a hollow structure and is connected to the dosing tank 31. The uniform distribution chamber 33 is fixedly installed at the other end of the delivery pipe 32 and is used to discharge the liquid medicine from the dispensing hole 34. The bottom of the uniform distribution chamber 33 has an array of dispensing holes 34. During operation, when the treatment tank 21 is tilted, the dosing tank 31 also tilts accordingly. At this time, the liquid medicine is transported to the uniform dosing chamber 33 through the dosing pipe 32, and falls into the water delivery chamber 232 through the dosing outlet 34 in the uniform dosing chamber 33. By integrating the dosing tank 31 and the treatment tank 21 into a fixed design, the dosing and waste discharge processes are synchronized. The gravitational potential energy generated when the treatment tank 21 is tilted is used to realize the automatic delivery and dosing of the liquid medicine. There is no need to configure an additional metering pump and control system, which simplifies the structure of the device and significantly reduces energy consumption. The array-type dosing outlet 34 at the bottom of the uniform dosing chamber 33 allows the liquid medicine to be evenly dispersed into the wastewater in the water delivery chamber 232, which greatly improves the uniformity of the reagent mixing and the reaction efficiency compared with the traditional single-point dosing method.

[0022] like Figures 2 to 4 As shown, a water supply pipe 231 is fixedly installed on the discharge port 23, and a water supply chamber 232 is fixedly installed on the water supply pipe 231. The water supply chamber 232 is located at the bottom of the uniform distribution chamber 33, and the bottom of the water supply chamber 232 has an array of water outlet holes 233. The water supply chamber 232 is integrated with the discharge port 23, and directly receives the wastewater discharged from the treatment tank 21 through the water supply pipe 231. The wastewater is evenly dispersed at the bottom of the uniform distribution chamber 33 through the array of water outlet holes 233, forming an upper and lower counter-current contact with the liquid medicine falling from the top uniform distribution chamber 33, which significantly enhances the liquid-liquid mixing effect and improves the uniformity of pH adjustment and reaction rate. At the same time, this structure integrates the wastewater transportation and uniform distribution functions, eliminating the traditional transfer pump and water distribution system, making the whole device more compact and greatly reducing the equipment footprint and the complexity of pipeline connections.

[0023] like Figures 1 to 5As shown, the stirring device 4 includes a stirring tank 41, a liquid inlet 42, a stirring motor 43, a stirring rod 44, stirring arms 45, and a discharge pipe 46. The stirring tank 41 is fixedly installed on the support frame 1 and is used to stir the production wastewater. The stirring tank 41 has a liquid inlet 42 and a stirring motor 43 is fixedly installed above the stirring tank 41. The stirring motor 43 is used to drive the stirring rod 44 to rotate. The stirring rod 44 is fixedly installed at the output end of the stirring motor 43, and the rotation of the stirring rod 44 drives the stirring arms 45 to rotate. The stirring arms 45 are fixedly installed in an array on the stirring rod 44, and the rotation of the stirring arms 45 is used to stir the production wastewater. The discharge pipe 46 is fixedly installed at the bottom of the stirring tank 41 and is used to discharge the treated production wastewater to the next process for further treatment. During operation, wastewater and chemical solution are evenly discharged and mixed through the water outlet 233 and chemical outlet 34 arrayed at the bottom of the water conveying tank 232 and the chemical mixing tank 33, respectively, and fall into the liquid inlet 42. The stirring motor 43 drives the stirring rod 44 to drive the stirring arm 45 to fully stir the mixture, so that the chemical and wastewater react completely to complete the pH adjustment. After the adjustment is completed, the discharge pipe 46 is opened to discharge the treated wastewater to the next process. The array-type stirring arm 45 is designed to receive wastewater and chemical solution evenly distributed from above, realizing three-dimensional and thorough mixing of the mixture. This significantly improves the mixing efficiency and reaction uniformity of the chemical and wastewater, ensuring rapid and accurate pH adjustment. By integrating the stirring tank 41 with the discharge pipe 46, the treated wastewater can be quickly and directly discharged into the next process, forming a continuous production line operation of sedimentation, filtration, chemical dosing, stirring, and discharge, which greatly improves the automation level and treatment efficiency of the pretreatment process.

[0024] like Figure 2 As shown, a guide channel 6 is fixedly installed on the liquid inlet 42, and a second filter screen 7 is fixedly installed at the bottom of the guide channel 6. The guide channel 6 and the second filter screen 7 are integrated into the liquid inlet 42. The guide channel 6 guides the mixture to enter the mixing tank 41 smoothly, avoiding liquid splashing and impact. At the same time, the second filter screen 7 performs secondary filtration on the mixture, further intercepting residual suspended solids and impurities, effectively preventing the mixing device 4 from clogging and wearing, and significantly improving the cleanliness of the water entering the mixing stage and the reliability of the system operation.

[0025] like Figure 5As shown, a liquid level sensor 8 is fixedly installed inside the mixing tank 41. Since the mixing device 4 is an open structure, a liquid level line needs to be set to ensure a good mixing effect while preventing wastewater from splashing out of the inlet 42. Therefore, a liquid level sensor 8 is set to detect the liquid level inside the mixing tank 41, thereby achieving a better mixing effect. The liquid level sensor 8 monitors the liquid level height inside the open mixing tank 41 in real time. By setting the optimal liquid level line, intelligent linkage control of water inlet and outlet is achieved. This ensures that the mixing arm 45 fully mixes the reagent and wastewater within the effective liquid level range, ensuring a thorough pH adjustment reaction, and also precisely prevents wastewater from splashing out of the inlet 42 due to excessively high liquid level, causing environmental pollution and material loss.

[0026] like Figure 5 As shown, a mechanical valve 9 is installed on the discharge pipe 46. The mechanical valve 9 is installed on the discharge pipe 46 and can realize the controlled discharge and cut-off of the treated wastewater through simple mechanical operation. With the liquid level sensor 8, an automated discharge interlock can be formed to ensure that the optimal liquid level is maintained in the mixing tank 41 while preventing uncontrolled leakage of wastewater.

[0027] The overall working process is as follows: The production wastewater containing methylmorpholine is transported to the treatment tank 21 through the feed pipe 22 for sedimentation pretreatment. After sedimentation is completed, the first telescopic rod 5 is activated to drive the treatment tank 21 to tilt around the fixed shaft 13. The sedimented wastewater is initially filtered by the first filter screen 24 at the discharge port 23 and then enters the water conveying chamber 232 through the water conveying pipe 231. At the same time, the dosing tank 31 tilts synchronously with the treatment tank 21 so that the drug solution enters the uniform drug chamber 33 through the dosing pipe 32. The wastewater and the drug solution are evenly discharged and mixed through the water outlet 233 and the drug outlet 34 arrayed at the bottom of the water conveying chamber 232 and the uniform drug chamber 33, respectively, and fall into the guide trough 6. After secondary filtration by the second filter screen 7, it enters the stirring tank 41. The stirring motor 43 drives the stirring rod 44 to drive the stirring arm 45 to fully stir the mixture so that the agent and the wastewater react completely to complete the pH adjustment.

[0028] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for deep treatment of industrial wastewater containing methylmorpholine, characterized in that, The device includes a support frame (1), a pretreatment device (2), a dosing device (3), and a stirring device (4). The pretreatment device (2) is installed above the support frame (1) and is used to treat the production wastewater by sedimentation. The dosing device (3) is installed on one side of the pretreatment device (2) and is used to add chemicals into the stirring device (4) while transporting the settled production wastewater to the stirring device (4). The stirring device (4) is installed below the pretreatment device (2) and is used to stir the production wastewater after adding chemicals, thereby completing the pH adjustment.

2. The advanced treatment device for production wastewater containing methylmorpholine according to claim 1, characterized in that: The pretreatment device (2) includes a treatment tank (21), a feed pipe (22), a discharge port (23) and a first filter screen (24). The treatment tank (21) is installed on the support frame (1). The feed pipe (22) is fixedly installed above the treatment tank (21). The discharge port (23) is opened below the treatment tank (21). The first filter screen (24) is installed at the discharge port (23).

3. The advanced treatment device for production wastewater containing methylmorpholine according to claim 2, characterized in that: A fixing frame (11) is fixedly installed on the support frame (1). A fixing hole (12) is provided on the fixing frame (11). A fixing shaft (13) is symmetrically installed on the processing barrel (21). The fixing shaft (13) is rotatably installed in the fixing hole (12). A fixing ear (14) is fixedly installed on the side of the processing barrel (21) away from the feed inlet. One end of a first telescopic rod (5) is hinged to the fixing ear (14). The other end of the first telescopic rod (5) is rotatably installed on the support frame (1).

4. The advanced treatment device for production wastewater containing methylmorpholine according to claim 3, characterized in that: The dosing device (3) includes a dosing tank (31), a delivery pipe (32), a uniform distribution chamber (33), and a dispensing hole (34). The dosing tank (31) is fixedly installed on the processing tank (21). A delivery pipe (32) is fixedly installed on one side of the dosing tank (31). The delivery pipe (32) has a hollow structure and is connected to the dosing tank (31). A uniform distribution chamber (33) is fixedly installed at the other end of the delivery pipe (32). Dispensing holes (34) are arrayed at the bottom of the uniform distribution chamber (33).

5. The advanced treatment device for production wastewater containing methylmorpholine according to claim 4, characterized in that: A water supply pipe (231) is fixedly installed on the discharge port (23), and a water supply chamber (232) is fixedly installed on the water supply pipe (231). The water supply chamber (232) is located at the bottom of the uniform medicine chamber (33), and water outlet holes (233) are arrayed at the bottom of the water supply chamber (232).

6. The advanced treatment device for production wastewater containing methylmorpholine according to claim 5, characterized in that: The stirring device (4) includes a stirring tank (41), a liquid inlet (42), a stirring motor (43), a stirring rod (44), a stirring arm (45), and a discharge pipe (46). The stirring tank (41) is fixedly installed on the support frame (1). The stirring tank (41) has a liquid inlet (42) and a stirring motor (43) is fixedly installed above the stirring tank (41). A stirring rod (44) is fixedly installed at the output end of the stirring motor (43). A stirring arm (45) is fixedly installed in an array on the stirring rod (44). A discharge pipe (46) is fixedly installed at the bottom of the stirring tank (41).

7. The advanced treatment device for production wastewater containing methylmorpholine according to claim 6, characterized in that: A guide channel (6) is fixedly installed on the liquid inlet (42), and a second filter screen (7) is fixedly installed at the bottom of the guide channel (6).

8. The advanced treatment device for production wastewater containing methylmorpholine according to claim 7, characterized in that: A liquid level sensor (8) is fixedly installed inside the mixing tank (41).

9. The advanced treatment device for production wastewater containing methylmorpholine according to claim 8, characterized in that: A mechanical valve (9) is installed on the discharge pipe (46).

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